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HomeMy WebLinkAbout2019-108 Stall SWMP as built 901 N 3rd St, Suite 120 Minneapolis, MN 55401 DATE: January 31, 2022 (revised 7/19/22) PREPARED FOR: Nine Mile Creek Watershed, City of Edina Staal Residence, Edina MN Project Description The property is located on Arrowhead Lake. The 2.34 acre lot (1.57 dry) was previously occupied by a home that was razed to construct the new home and amenities. The property owner also acquired the lot to the southwest of there new home and razed the existing home on that lot. The north half of the site drains to Arrowhead Lake. The southern half of the site drains to Indian Hills Road and then to a small water body southwest of the site. During construction gutters and an underground tile system was added to direct runoff from the front of the home to the north infiltration basin 1. Additional rock was added to increase the capacity of the system. Additional driveway surface was added to the south of the new home and the existing driveway that was assumed to remain was repaved. This report assumes that the subgrade was disturbed for the driveway that was repaved. The natural soils are generally granular as indicated in the previously submitted geotechnical report. Note: For this revised report impervious areas have been changed to match surveyor’s calculations and storage volume in Basin 1 was revised to match design rather than the greater than required rock installed by contractor. Project Data General Owner / Developer Highway 11 LLC, 6700 Indian Hills Rd, Edina, MN 55439 Site Address 6700 Indian Hills Rd, Edina, MN 55439 Site Latitude / Longitude 44.88453, -93.39459 Site PID # 0611621230008 Rainfall Intensity 2 yr. – 24 hr. 10 yr. – 24 hr. 100 yr. – 24 hr. 2.87 4.28 7.47 STORMWATER NARRATIVE -RECORD PLAN RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 2 of 7 Project Data (continued) Regulatory Requirements Agency / Contact Jurisdictional Threshold Volume Control Rate Control Water Quality City of Edina Jennifer Vanderwerff Wilson jwilson@EdinaMN.gov 952-826-0445 Unknown Threshold Triggered: ☒ Yes ☐No Nine Mile Creek Watershed District Lauren Foley lfoley@ninemilecreek.org 952-204-9690 Adds >25% impervious and disturbs >50% Threshold Triggered: ☒ Yes ☐ No Infiltrationtr ate 1.1” from all impervious surfaces 2, 10, 100 yr. 24 hr. rainfall, 90% TSS removal and 60% TP removal MPCA 1 acre of new impervious Threshold Triggered: ☐ Yes ☒ No 1.0” from new impervious surfaces Land Cover – Total Site ☐ New Development ☒ Redevelopment Cover Existing (acres) Proposed (acres) As Constructed -per Survey (acres) Impervious 0.237 0.398 0.464 Wetland Pervious 1.334 1.173 1.107 Total 1.571 1.571 1.571 RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 3 of 7 Land Cover – Draining Direct to UG Infiltration Basin 1 Cover Proposed (acres) As-built (acres) Impervious Undisturbed New/Disturbed 0.164 0.199 Pervious Lawn CN 61 Lawn CN 61 HSG B CN: 61/58/98 0.171 0.168 Total 0.335 0.368 Land Cover – Draining Direct to Rain Garden Basin 2 Cover Proposed (acres) As-built (acres) Impervious Undisturbed New/Disturbed 0.034 0.052 Pervious Lawn CN 61 Lawn CN 61 HSG B CN: 61/58/98 0.042 0.035 Total 0.076 0.087 Land Cover – Draining Direct to UG Infiltration Basin 3 Cover Proposed (acres) As-built (acres) Impervious Undisturbed 0.057 0.000 New/Disturbed 0.142 0.172 Pervious Lawn CN 61 Lawn CN 61 HSG B CN: 61/58/98 0.370 0.347 Total 0.569 0.519 RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 4 of 7 Stormwater Management System Description Runoff follows the same general patterns as the pre-construction condition. Due to the complicated roof line and the wooded site with relatively steep topography, multiple underground Infiltration basins are utilized to provide rate and volume control. UG Infiltration Basin 1 overflows to Arrowhead Lake. Rain garden Basin 2 overflows directly to the right of way along Arrowhead Pass Road. The runoff will then drain down Arrowhead Pass Road to Indian Hills Road. UG Infiltration Basin 3 overflows directly to Indian Hills Road. Record Plan Update: UG basin 2 was replace by a surface basin. A portion of UG Basin 3 was constructed with plastic pipe instead of CMP. Both changes are acceptable. An extensive network of French drains, roof downspout connections and underground pipes were installed to direct runoff to the underground basins. These are shown on the record drainage map. Volume Control All stormwater facilities have the storage capacity to treat 1.1” from all impervious surfaces draining directly to them. The effective depth of the 1.1” volume in each basin was calculated to verify it would Infiltrate within 48 hours. The effective depth is calculated by dividing the required 1.1” volume for each basin by the basin surface area. UG Infiltration Basins with SM or SP-SM soils needed to have an effective depth less than 1.8 or 2.8 feet, respectively. Volume Control Basin Number UG Infiltration Basin 1 Rain Garden Basin 2 UG Infiltration Basin 3 Basin Type Filtration ☐ Infiltration ☒ Filtration ☐ Infiltration ☒ Filtration ☐ Infiltration ☒ Contributing Impervious Area1 (acres) 0.199 0.052 0.172 Pretreatment Method Lawn, Sediment Collector Pipe2 none Lawn, Sediment Collector Pipe2 Underlying Soil Classification3 SP-SM SM SM Design Extraction Rate (inches / hour) 0.74 0.45 0.45 Required Drawdown Period (hours) 48 48 48 RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 5 of 7 Required Treatment Volume5 (cubic feet) 796 208 688 Volume Provided6 (cubic feet) 1052 645 770 Depth at which Required Volume is Provided (ft) 1.8 1.6 2.25 Effective Depth7 at which Required Volume is Provided (ft) 1.12 1.6 1.6 Drawdown Time for 1.1” Event with 1-hr duration (hours) 19 43 43 See HydroCAD model in Appendix for additional details. 1Area represents drainage being conveyed directly to each basin. 2Drainage entering the Underground Infiltration system will first enter into a solid CMP pipe segment. This segment has a weir and perforated riser intended to collect sediment before the runoff enters the perforated CMP portion of the system. 3Based on boring logs by NTI. Refer to Grading Plan sheet C-201 for additional information on selection of extraction rate and soil amendments to be made to basin. 4Rate based on recommended SP-SM extraction rate listed in NTI report. 5Required treatment volume to Infiltrate 1.1-inch runoff from all impervious surfaces draining to basin. 6Volume provided at the lesser of the overflow depth or depth at which the effective depth is equal to max depth which will drain down in 48 hours based on the Infiltration rate. 7Treatment volume / treatment area RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 6 of 7 Rate Control Pond Data Basin Name: UG Infiltration Basin 1 Rain Garden Basin 2 UG Infiltration Basin 3 Basin Type ☐ Wet ☒ Dry ☐ Wet ☒ Dry ☐ Wet ☒ Dry Bottom Elevation 893.5 904.0 879.5 Groundwater Elevation1 - - - 1.1” Rainfall Peak Elevation 895.15 905.5 880.7 2 yr. – 24 hr. Rainfall Peak Elevation 896.2 906.4 883.3 10 yr. – 24 hr. Rainfall Peak Elevation 896.6 906.9 883.7 100 yr. – 24 hr. Rainfall Peak Elevation 897.85 907.0 883.9 See HydroCAD model in Appendix for additional details. 1No groundwater was detected in any of the borings in the NTI report. Runoff Rates North Outfall Discharge Point / Reach 1.1” – 1 hr. 2 yr. – 24 hr. 10 yr. – 24 hr. 100 yr. – 24 hr. Existing Rate (cfs) 0.44 0.57 1.77 5.37 As-constructed Rate (cfs) 0.00 0.22 1.76 5.21 Change (cfs) (-0.44) (-0.35) (-0.01) (-0.16) See HydroCAD model in Appendix for additional details. Rate control has been achieved. South Outfall Discharge Point / Reach 1.1” – 1hr. 2 yr. – 24 hr. 10 yr. – 24 hr. 100 yr. – 24 hr. Existing Rate (cfs) 1.32 1.00 2.15 5.37 As Constructed Rate (cfs) 0.00 0.03 0.81 5.37 Change (cfs) (-1.32) (-0.97) (-1.34) +0.00 See HydroCAD model in Appendix for additional details. Rate control has been achieved. RE: Staal Residence Date: January 31, 2022 (revised 7/19/22) Page 7 of 7 Water Quality Given that there is no runoff from the 1.1” event it can be assumed that TSS and TP requirements are met. Closing The stormwater management system as constructed at the Staal Residence is believed to be in full compliance with city, watershed and state rules and regulations. If you have any questions or need additional information regarding this report, please feel free to contact me at sjohnston@elanlab.com 612- 260-7982. I hereby certify that this report has been prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the state of Minnesota. Stephen M. Johnston Registration # 18914 07/19/2022 Encl: Drainage map for constructed conditions HydroCAD Models for pre-re-development and as-constructed conditions Shop Drawings for underground systems, along with contractors notes. As-constructed survey. cc: Élan File No.: CFH19003 NORTH B0.530 ACPERV 0.530 ACIMPV 0 ACSOUTH C0.519 ACPERV 0.327 ACIMPV 0.192 ACNORTH A0.372 ACPERV 0.159 ACIMPV 0.213 ACSOUTH B0.055 ACPERV 0.055 ACIMPV 0 ACSOUTH A0.087 ACPERV 0.035 ACIMPV 0.052 ACSOUTH D0.008 ACPERV 0.001 ACIMPV 0.007 ACRECORD PLAN DRAINAGE MAP 01/21/2212040SCALE IN FEETD E S I G NCi vil Engi neer ing | Landscape Archit ect ure | Constructi on Services901 N 3 rd S TR E E T, SU ITE 1 2 0 M I N N E A P O L I S , M N 5 5 4 0 1 www.elanlab.comp 612.260.7980 f 612.260.7990 STAAL RESIDENCE EDINA, MINNESOTA CFH19003IMPERVIOUS AREA0.464 AC.PERVIOUS1.107 AC.TOTAL 1.571 AC.AREA SUMMARY0.00.0080.0520.0350.1730.1990.3470.1721.1480.423 Existing Proposed NA North A Proposed NA Ex North Exist NB North B Proposed SA South A Proposed SA Ex South Exist SB South B Proposed SC South C Proposed SD South D ProposedRG 2 rain garden UG1 UG Infil Basin 1 UG3 UG Infil Basin 3 N Ex North Existing N Pro North Proposed S Ex South Existing S Pro South Proposed Routing Diagram for 20220719_CFH03_Staal_Record DrawingPrepared by Élan Design Lab, Printed 7/19/2022 HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Subcat Reach Pond Link Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 2HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=0.372 ac 53.49% Impervious Runoff Depth=0.48"Subcatchment NA: North A Proposed Tc=5.0 min CN=61/98 Runoff=1.47 cfs 0.015 af Runoff Area=0.841 ac 7.02% Impervious Runoff Depth=0.06"Subcatchment NA Ex: North Exist Tc=5.0 min CN=61/98 Runoff=0.44 cfs 0.004 af Runoff Area=0.530 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment NB: North B Proposed Tc=5.0 min CN=61/0 Runoff=0.00 cfs 0.000 af Runoff Area=0.087 ac 59.77% Impervious Runoff Depth=0.53"Subcatchment SA: South A Proposed Tc=5.0 min CN=61/98 Runoff=0.39 cfs 0.004 af Runoff Area=0.730 ac 24.38% Impervious Runoff Depth=0.22"Subcatchment SA Ex: South Exist Tc=5.0 min CN=61/98 Runoff=1.32 cfs 0.013 af Runoff Area=0.055 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment SB: South B Proposed Tc=5.0 min CN=61/0 Runoff=0.00 cfs 0.000 af Runoff Area=0.519 ac 33.14% Impervious Runoff Depth=0.29"Subcatchment SC: South C Proposed Tc=5.0 min CN=61/98 Runoff=1.27 cfs 0.013 af Runoff Area=0.019 ac 0.00% Impervious Runoff Depth=0.00"Subcatchment SD: South D Proposed Tc=5.0 min CN=61/0 Runoff=0.00 cfs 0.000 af Peak Elev=905.53' Storage=163 cf Inflow=0.39 cfs 0.004 afPond RG 2: rain garden Discarded=0.00 cfs 0.004 af Primary=0.00 cfs 0.000 af Outflow=0.00 cfs 0.004 af Peak Elev=895.15' Storage=611 cf Inflow=1.47 cfs 0.015 afPond UG1: UG Infil Basin 1 Discarded=0.01 cfs 0.015 af Primary=0.00 cfs 0.000 af Outflow=0.01 cfs 0.015 af Peak Elev=880.72' Storage=533 cf Inflow=1.27 cfs 0.013 afPond UG3: UG Infil Basin 3 Discarded=0.01 cfs 0.013 af Primary=0.00 cfs 0.000 af Outflow=0.01 cfs 0.013 af Inflow=0.44 cfs 0.004 afLink N Ex: North Existing Primary=0.44 cfs 0.004 af Inflow=0.00 cfs 0.000 afLink N Pro: North Proposed Primary=0.00 cfs 0.000 af Inflow=1.32 cfs 0.013 afLink S Ex: South Existing Primary=1.32 cfs 0.013 af Inflow=0.00 cfs 0.000 afLink S Pro: South Proposed Primary=0.00 cfs 0.000 af Total Runoff Area = 3.153 ac Runoff Volume = 0.049 af Average Runoff Depth = 0.19" 79.07% Pervious = 2.493 ac 20.93% Impervious = 0.660 ac Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 3HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA: North A Proposed Runoff = 1.47 cfs @ 0.57 hrs, Volume= 0.015 af, Depth= 0.48" Routed to Pond UG1 : UG Infil Basin 1 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.199 98 IMPERVIOUS 0.173 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.372 81 Weighted Average 0.173 61 46.51% Pervious Area 0.199 98 53.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 4HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA: North A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.89 0.00 4.00 1.10 0.00 0.89 0.00 6.00 1.10 0.00 0.89 0.00 8.00 1.10 0.00 0.89 0.00 10.00 1.10 0.00 0.89 0.00 12.00 1.10 0.00 0.89 0.00 14.00 1.10 0.00 0.89 0.00 16.00 1.10 0.00 0.89 0.00 18.00 1.10 0.00 0.89 0.00 20.00 1.10 0.00 0.89 0.00 22.00 1.10 0.00 0.89 0.00 24.00 1.10 0.00 0.89 0.00 26.00 1.10 0.00 0.89 0.00 28.00 1.10 0.00 0.89 0.00 30.00 1.10 0.00 0.89 0.00 32.00 1.10 0.00 0.89 0.00 34.00 1.10 0.00 0.89 0.00 36.00 1.10 0.00 0.89 0.00 38.00 1.10 0.00 0.89 0.00 40.00 1.10 0.00 0.89 0.00 42.00 1.10 0.00 0.89 0.00 44.00 1.10 0.00 0.89 0.00 46.00 1.10 0.00 0.89 0.00 48.00 1.10 0.00 0.89 0.00 50.00 1.10 0.00 0.89 0.00 52.00 1.10 0.00 0.89 0.00 54.00 1.10 0.00 0.89 0.00 56.00 1.10 0.00 0.89 0.00 58.00 1.10 0.00 0.89 0.00 60.00 1.10 0.00 0.89 0.00 62.00 1.10 0.00 0.89 0.00 64.00 1.10 0.00 0.89 0.00 66.00 1.10 0.00 0.89 0.00 68.00 1.10 0.00 0.89 0.00 70.00 1.10 0.00 0.89 0.00 72.00 1.10 0.00 0.89 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 5HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA Ex: North Exist Runoff = 0.44 cfs @ 0.57 hrs, Volume= 0.004 af, Depth= 0.06" Routed to Link N Ex : North Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.059 98 IMPERVIOUS 0.782 61 >75% Grass cover, Good, HSG B 0.841 64 Weighted Average 0.782 61 92.98% Pervious Area 0.059 98 7.02% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 6HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA Ex: North Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.89 0.00 4.00 1.10 0.00 0.89 0.00 6.00 1.10 0.00 0.89 0.00 8.00 1.10 0.00 0.89 0.00 10.00 1.10 0.00 0.89 0.00 12.00 1.10 0.00 0.89 0.00 14.00 1.10 0.00 0.89 0.00 16.00 1.10 0.00 0.89 0.00 18.00 1.10 0.00 0.89 0.00 20.00 1.10 0.00 0.89 0.00 22.00 1.10 0.00 0.89 0.00 24.00 1.10 0.00 0.89 0.00 26.00 1.10 0.00 0.89 0.00 28.00 1.10 0.00 0.89 0.00 30.00 1.10 0.00 0.89 0.00 32.00 1.10 0.00 0.89 0.00 34.00 1.10 0.00 0.89 0.00 36.00 1.10 0.00 0.89 0.00 38.00 1.10 0.00 0.89 0.00 40.00 1.10 0.00 0.89 0.00 42.00 1.10 0.00 0.89 0.00 44.00 1.10 0.00 0.89 0.00 46.00 1.10 0.00 0.89 0.00 48.00 1.10 0.00 0.89 0.00 50.00 1.10 0.00 0.89 0.00 52.00 1.10 0.00 0.89 0.00 54.00 1.10 0.00 0.89 0.00 56.00 1.10 0.00 0.89 0.00 58.00 1.10 0.00 0.89 0.00 60.00 1.10 0.00 0.89 0.00 62.00 1.10 0.00 0.89 0.00 64.00 1.10 0.00 0.89 0.00 66.00 1.10 0.00 0.89 0.00 68.00 1.10 0.00 0.89 0.00 70.00 1.10 0.00 0.89 0.00 72.00 1.10 0.00 0.89 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 7HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NB: North B Proposed [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Link N Pro : North Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.530 61 >75% Grass cover, Good, HSG B 0.530 61 Weighted Average 0.530 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 8HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NB: North B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.00 0.00 4.00 1.10 0.00 0.00 0.00 6.00 1.10 0.00 0.00 0.00 8.00 1.10 0.00 0.00 0.00 10.00 1.10 0.00 0.00 0.00 12.00 1.10 0.00 0.00 0.00 14.00 1.10 0.00 0.00 0.00 16.00 1.10 0.00 0.00 0.00 18.00 1.10 0.00 0.00 0.00 20.00 1.10 0.00 0.00 0.00 22.00 1.10 0.00 0.00 0.00 24.00 1.10 0.00 0.00 0.00 26.00 1.10 0.00 0.00 0.00 28.00 1.10 0.00 0.00 0.00 30.00 1.10 0.00 0.00 0.00 32.00 1.10 0.00 0.00 0.00 34.00 1.10 0.00 0.00 0.00 36.00 1.10 0.00 0.00 0.00 38.00 1.10 0.00 0.00 0.00 40.00 1.10 0.00 0.00 0.00 42.00 1.10 0.00 0.00 0.00 44.00 1.10 0.00 0.00 0.00 46.00 1.10 0.00 0.00 0.00 48.00 1.10 0.00 0.00 0.00 50.00 1.10 0.00 0.00 0.00 52.00 1.10 0.00 0.00 0.00 54.00 1.10 0.00 0.00 0.00 56.00 1.10 0.00 0.00 0.00 58.00 1.10 0.00 0.00 0.00 60.00 1.10 0.00 0.00 0.00 62.00 1.10 0.00 0.00 0.00 64.00 1.10 0.00 0.00 0.00 66.00 1.10 0.00 0.00 0.00 68.00 1.10 0.00 0.00 0.00 70.00 1.10 0.00 0.00 0.00 72.00 1.10 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 9HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA: South A Proposed Runoff = 0.39 cfs @ 0.57 hrs, Volume= 0.004 af, Depth= 0.53" Routed to Pond RG 2 : rain garden Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.052 98 IMPERVIOUS 0.035 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.087 83 Weighted Average 0.035 61 40.23% Pervious Area 0.052 98 59.77% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 10HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA: South A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.89 0.00 4.00 1.10 0.00 0.89 0.00 6.00 1.10 0.00 0.89 0.00 8.00 1.10 0.00 0.89 0.00 10.00 1.10 0.00 0.89 0.00 12.00 1.10 0.00 0.89 0.00 14.00 1.10 0.00 0.89 0.00 16.00 1.10 0.00 0.89 0.00 18.00 1.10 0.00 0.89 0.00 20.00 1.10 0.00 0.89 0.00 22.00 1.10 0.00 0.89 0.00 24.00 1.10 0.00 0.89 0.00 26.00 1.10 0.00 0.89 0.00 28.00 1.10 0.00 0.89 0.00 30.00 1.10 0.00 0.89 0.00 32.00 1.10 0.00 0.89 0.00 34.00 1.10 0.00 0.89 0.00 36.00 1.10 0.00 0.89 0.00 38.00 1.10 0.00 0.89 0.00 40.00 1.10 0.00 0.89 0.00 42.00 1.10 0.00 0.89 0.00 44.00 1.10 0.00 0.89 0.00 46.00 1.10 0.00 0.89 0.00 48.00 1.10 0.00 0.89 0.00 50.00 1.10 0.00 0.89 0.00 52.00 1.10 0.00 0.89 0.00 54.00 1.10 0.00 0.89 0.00 56.00 1.10 0.00 0.89 0.00 58.00 1.10 0.00 0.89 0.00 60.00 1.10 0.00 0.89 0.00 62.00 1.10 0.00 0.89 0.00 64.00 1.10 0.00 0.89 0.00 66.00 1.10 0.00 0.89 0.00 68.00 1.10 0.00 0.89 0.00 70.00 1.10 0.00 0.89 0.00 72.00 1.10 0.00 0.89 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 11HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA Ex: South Exist Runoff = 1.32 cfs @ 0.57 hrs, Volume= 0.013 af, Depth= 0.22" Routed to Link S Ex : South Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.178 98 IMPERVIOUS 0.552 61 >75% Grass cover, Good, HSG B 0.730 70 Weighted Average 0.552 61 75.62% Pervious Area 0.178 98 24.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 12HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA Ex: South Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.89 0.00 4.00 1.10 0.00 0.89 0.00 6.00 1.10 0.00 0.89 0.00 8.00 1.10 0.00 0.89 0.00 10.00 1.10 0.00 0.89 0.00 12.00 1.10 0.00 0.89 0.00 14.00 1.10 0.00 0.89 0.00 16.00 1.10 0.00 0.89 0.00 18.00 1.10 0.00 0.89 0.00 20.00 1.10 0.00 0.89 0.00 22.00 1.10 0.00 0.89 0.00 24.00 1.10 0.00 0.89 0.00 26.00 1.10 0.00 0.89 0.00 28.00 1.10 0.00 0.89 0.00 30.00 1.10 0.00 0.89 0.00 32.00 1.10 0.00 0.89 0.00 34.00 1.10 0.00 0.89 0.00 36.00 1.10 0.00 0.89 0.00 38.00 1.10 0.00 0.89 0.00 40.00 1.10 0.00 0.89 0.00 42.00 1.10 0.00 0.89 0.00 44.00 1.10 0.00 0.89 0.00 46.00 1.10 0.00 0.89 0.00 48.00 1.10 0.00 0.89 0.00 50.00 1.10 0.00 0.89 0.00 52.00 1.10 0.00 0.89 0.00 54.00 1.10 0.00 0.89 0.00 56.00 1.10 0.00 0.89 0.00 58.00 1.10 0.00 0.89 0.00 60.00 1.10 0.00 0.89 0.00 62.00 1.10 0.00 0.89 0.00 64.00 1.10 0.00 0.89 0.00 66.00 1.10 0.00 0.89 0.00 68.00 1.10 0.00 0.89 0.00 70.00 1.10 0.00 0.89 0.00 72.00 1.10 0.00 0.89 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 13HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SB: South B Proposed [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.055 61 >75% Grass cover, Good, HSG B 0.055 61 Weighted Average 0.055 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 14HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SB: South B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.00 0.00 4.00 1.10 0.00 0.00 0.00 6.00 1.10 0.00 0.00 0.00 8.00 1.10 0.00 0.00 0.00 10.00 1.10 0.00 0.00 0.00 12.00 1.10 0.00 0.00 0.00 14.00 1.10 0.00 0.00 0.00 16.00 1.10 0.00 0.00 0.00 18.00 1.10 0.00 0.00 0.00 20.00 1.10 0.00 0.00 0.00 22.00 1.10 0.00 0.00 0.00 24.00 1.10 0.00 0.00 0.00 26.00 1.10 0.00 0.00 0.00 28.00 1.10 0.00 0.00 0.00 30.00 1.10 0.00 0.00 0.00 32.00 1.10 0.00 0.00 0.00 34.00 1.10 0.00 0.00 0.00 36.00 1.10 0.00 0.00 0.00 38.00 1.10 0.00 0.00 0.00 40.00 1.10 0.00 0.00 0.00 42.00 1.10 0.00 0.00 0.00 44.00 1.10 0.00 0.00 0.00 46.00 1.10 0.00 0.00 0.00 48.00 1.10 0.00 0.00 0.00 50.00 1.10 0.00 0.00 0.00 52.00 1.10 0.00 0.00 0.00 54.00 1.10 0.00 0.00 0.00 56.00 1.10 0.00 0.00 0.00 58.00 1.10 0.00 0.00 0.00 60.00 1.10 0.00 0.00 0.00 62.00 1.10 0.00 0.00 0.00 64.00 1.10 0.00 0.00 0.00 66.00 1.10 0.00 0.00 0.00 68.00 1.10 0.00 0.00 0.00 70.00 1.10 0.00 0.00 0.00 72.00 1.10 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 15HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SC: South C Proposed Runoff = 1.27 cfs @ 0.57 hrs, Volume= 0.013 af, Depth= 0.29" Routed to Pond UG3 : UG Infil Basin 3 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.172 98 IMPERVIOUS 0.347 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.519 73 Weighted Average 0.347 61 66.86% Pervious Area 0.172 98 33.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 16HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SC: South C Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.89 0.00 4.00 1.10 0.00 0.89 0.00 6.00 1.10 0.00 0.89 0.00 8.00 1.10 0.00 0.89 0.00 10.00 1.10 0.00 0.89 0.00 12.00 1.10 0.00 0.89 0.00 14.00 1.10 0.00 0.89 0.00 16.00 1.10 0.00 0.89 0.00 18.00 1.10 0.00 0.89 0.00 20.00 1.10 0.00 0.89 0.00 22.00 1.10 0.00 0.89 0.00 24.00 1.10 0.00 0.89 0.00 26.00 1.10 0.00 0.89 0.00 28.00 1.10 0.00 0.89 0.00 30.00 1.10 0.00 0.89 0.00 32.00 1.10 0.00 0.89 0.00 34.00 1.10 0.00 0.89 0.00 36.00 1.10 0.00 0.89 0.00 38.00 1.10 0.00 0.89 0.00 40.00 1.10 0.00 0.89 0.00 42.00 1.10 0.00 0.89 0.00 44.00 1.10 0.00 0.89 0.00 46.00 1.10 0.00 0.89 0.00 48.00 1.10 0.00 0.89 0.00 50.00 1.10 0.00 0.89 0.00 52.00 1.10 0.00 0.89 0.00 54.00 1.10 0.00 0.89 0.00 56.00 1.10 0.00 0.89 0.00 58.00 1.10 0.00 0.89 0.00 60.00 1.10 0.00 0.89 0.00 62.00 1.10 0.00 0.89 0.00 64.00 1.10 0.00 0.89 0.00 66.00 1.10 0.00 0.89 0.00 68.00 1.10 0.00 0.89 0.00 70.00 1.10 0.00 0.89 0.00 72.00 1.10 0.00 0.89 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 17HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SD: South D Proposed [45] Hint: Runoff=Zero Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.019 61 >75% Grass cover, Good, HSG B 0.019 61 Weighted Average 0.019 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 18HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SD: South D Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 1.10 0.00 0.00 0.00 4.00 1.10 0.00 0.00 0.00 6.00 1.10 0.00 0.00 0.00 8.00 1.10 0.00 0.00 0.00 10.00 1.10 0.00 0.00 0.00 12.00 1.10 0.00 0.00 0.00 14.00 1.10 0.00 0.00 0.00 16.00 1.10 0.00 0.00 0.00 18.00 1.10 0.00 0.00 0.00 20.00 1.10 0.00 0.00 0.00 22.00 1.10 0.00 0.00 0.00 24.00 1.10 0.00 0.00 0.00 26.00 1.10 0.00 0.00 0.00 28.00 1.10 0.00 0.00 0.00 30.00 1.10 0.00 0.00 0.00 32.00 1.10 0.00 0.00 0.00 34.00 1.10 0.00 0.00 0.00 36.00 1.10 0.00 0.00 0.00 38.00 1.10 0.00 0.00 0.00 40.00 1.10 0.00 0.00 0.00 42.00 1.10 0.00 0.00 0.00 44.00 1.10 0.00 0.00 0.00 46.00 1.10 0.00 0.00 0.00 48.00 1.10 0.00 0.00 0.00 50.00 1.10 0.00 0.00 0.00 52.00 1.10 0.00 0.00 0.00 54.00 1.10 0.00 0.00 0.00 56.00 1.10 0.00 0.00 0.00 58.00 1.10 0.00 0.00 0.00 60.00 1.10 0.00 0.00 0.00 62.00 1.10 0.00 0.00 0.00 64.00 1.10 0.00 0.00 0.00 66.00 1.10 0.00 0.00 0.00 68.00 1.10 0.00 0.00 0.00 70.00 1.10 0.00 0.00 0.00 72.00 1.10 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 19HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond RG 2: rain garden Inflow Area = 0.087 ac, 59.77% Impervious, Inflow Depth = 0.53" for 1.1" event Inflow = 0.39 cfs @ 0.57 hrs, Volume= 0.004 af Outflow = 0.00 cfs @ 1.08 hrs, Volume= 0.004 af, Atten= 99%, Lag= 30.8 min Discarded = 0.00 cfs @ 1.08 hrs, Volume= 0.004 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 905.53' @ 1.08 hrs Surf.Area= 214 sf Storage= 163 cf Plug-Flow detention time= 805.9 min calculated for 0.004 af (100% of inflow) Center-of-Mass det. time= 805.8 min ( 842.5 - 36.6 ) Volume Invert Avail.Storage Storage Description #1 904.00' 700 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 0 0 0 906.00 280 280 280 907.00 560 420 700 Device Routing Invert Outlet Devices #1 Discarded 904.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 906.90'10.0' long x 1.00' rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0' Crest Height Discarded OutFlow Max=0.00 cfs @ 1.08 hrs HW=905.53' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=904.00' (Free Discharge) 2=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 20HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond RG 2: rain garden Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 904.00 0.00 0.00 0.00 2.00 0.00 156 905.49 0.00 0.00 0.00 4.00 0.00 140 905.41 0.00 0.00 0.00 6.00 0.00 125 905.34 0.00 0.00 0.00 8.00 0.00 111 905.26 0.00 0.00 0.00 10.00 0.00 98 905.18 0.00 0.00 0.00 12.00 0.00 86 905.11 0.00 0.00 0.00 14.00 0.00 75 905.03 0.00 0.00 0.00 16.00 0.00 64 904.96 0.00 0.00 0.00 18.00 0.00 54 904.88 0.00 0.00 0.00 20.00 0.00 45 904.80 0.00 0.00 0.00 22.00 0.00 37 904.73 0.00 0.00 0.00 24.00 0.00 30 904.65 0.00 0.00 0.00 26.00 0.00 23 904.58 0.00 0.00 0.00 28.00 0.00 18 904.50 0.00 0.00 0.00 30.00 0.00 13 904.42 0.00 0.00 0.00 32.00 0.00 9 904.35 0.00 0.00 0.00 34.00 0.00 5 904.27 0.00 0.00 0.00 36.00 0.00 3 904.20 0.00 0.00 0.00 38.00 0.00 1 904.12 0.00 0.00 0.00 40.00 0.00 0 904.05 0.00 0.00 0.00 42.00 0.00 0 904.00 0.00 0.00 0.00 44.00 0.00 0 904.00 0.00 0.00 0.00 46.00 0.00 0 904.00 0.00 0.00 0.00 48.00 0.00 0 904.00 0.00 0.00 0.00 50.00 0.00 0 904.00 0.00 0.00 0.00 52.00 0.00 0 904.00 0.00 0.00 0.00 54.00 0.00 0 904.00 0.00 0.00 0.00 56.00 0.00 0 904.00 0.00 0.00 0.00 58.00 0.00 0 904.00 0.00 0.00 0.00 60.00 0.00 0 904.00 0.00 0.00 0.00 62.00 0.00 0 904.00 0.00 0.00 0.00 64.00 0.00 0 904.00 0.00 0.00 0.00 66.00 0.00 0 904.00 0.00 0.00 0.00 68.00 0.00 0 904.00 0.00 0.00 0.00 70.00 0.00 0 904.00 0.00 0.00 0.00 72.00 0.00 0 904.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 21HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond RG 2: rain garden Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 904.00 0.00 0.00 0.00 904.05 0.00 0.00 0.00 904.10 0.00 0.00 0.00 904.15 0.00 0.00 0.00 904.20 0.00 0.00 0.00 904.25 0.00 0.00 0.00 904.30 0.00 0.00 0.00 904.35 0.00 0.00 0.00 904.40 0.00 0.00 0.00 904.45 0.00 0.00 0.00 904.50 0.00 0.00 0.00 904.55 0.00 0.00 0.00 904.60 0.00 0.00 0.00 904.65 0.00 0.00 0.00 904.70 0.00 0.00 0.00 904.75 0.00 0.00 0.00 904.80 0.00 0.00 0.00 904.85 0.00 0.00 0.00 904.90 0.00 0.00 0.00 904.95 0.00 0.00 0.00 905.00 0.00 0.00 0.00 905.05 0.00 0.00 0.00 905.10 0.00 0.00 0.00 905.15 0.00 0.00 0.00 905.20 0.00 0.00 0.00 905.25 0.00 0.00 0.00 905.30 0.00 0.00 0.00 905.35 0.00 0.00 0.00 905.40 0.00 0.00 0.00 905.45 0.00 0.00 0.00 905.50 0.00 0.00 0.00 905.55 0.00 0.00 0.00 905.60 0.00 0.00 0.00 905.65 0.00 0.00 0.00 905.70 0.00 0.00 0.00 905.75 0.00 0.00 0.00 905.80 0.00 0.00 0.00 905.85 0.00 0.00 0.00 905.90 0.00 0.00 0.00 905.95 0.00 0.00 0.00 906.00 0.00 0.00 0.00 906.05 0.00 0.00 0.00 906.10 0.00 0.00 0.00 906.15 0.00 0.00 0.00 906.20 0.00 0.00 0.00 906.25 0.00 0.00 0.00 906.30 0.00 0.00 0.00 906.35 0.00 0.00 0.00 906.40 0.00 0.00 0.00 906.45 0.00 0.00 0.00 906.50 0.00 0.00 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 906.55 0.00 0.00 0.00 906.60 0.00 0.00 0.00 906.65 0.00 0.00 0.00 906.70 0.01 0.01 0.00 906.75 0.01 0.01 0.00 906.80 0.01 0.01 0.00 906.85 0.01 0.01 0.00 906.90 0.01 0.01 0.00 906.95 0.37 0.01 0.37 907.00 1.05 0.01 1.04 907.05 1.93 0.01 1.93 907.10 2.99 0.01 2.98 907.15 4.20 0.01 4.19 907.20 5.54 0.01 5.54 907.25 7.02 0.01 7.01 907.30 8.61 0.01 8.61 907.35 10.33 0.01 10.32 907.40 12.15 0.01 12.15 907.45 14.08 0.01 14.08 907.50 16.12 0.01 16.12 907.55 18.26 0.01 18.26 907.60 20.51 0.01 20.50 907.65 22.85 0.01 22.84 907.70 25.28 0.01 25.28 907.75 27.82 0.01 27.81 907.80 30.44 0.01 30.44 907.85 33.16 0.01 33.15 907.90 35.97 0.01 35.97 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 22HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond RG 2: rain garden Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 904.00 0 0 904.05 7 0 904.10 14 1 904.15 21 2 904.20 28 3 904.25 35 4 904.30 42 6 904.35 49 9 904.40 56 11 904.45 63 14 904.50 70 18 904.55 77 21 904.60 84 25 904.65 91 30 904.70 98 34 904.75 105 39 904.80 112 45 904.85 119 51 904.90 126 57 904.95 133 63 905.00 140 70 905.05 147 77 905.10 154 85 905.15 161 93 905.20 168 101 905.25 175 109 905.30 182 118 905.35 189 128 905.40 196 137 905.45 203 147 905.50 210 158 905.55 217 168 905.60 224 179 905.65 231 191 905.70 238 202 905.75 245 214 905.80 252 227 905.85 259 240 905.90 266 253 905.95 273 266 906.00 280 280 906.05 294 294 906.10 308 309 906.15 322 325 906.20 336 342 906.25 350 359 906.30 364 377 906.35 378 395 906.40 392 414 906.45 406 434 906.50 420 455 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.55 434 476 906.60 448 498 906.65 462 521 906.70 476 545 906.75 490 569 906.80 504 594 906.85 518 619 906.90 532 645 906.95 546 672 907.00 560 700 907.05 560 700 907.10 560 700 907.15 560 700 907.20 560 700 907.25 560 700 907.30 560 700 907.35 560 700 907.40 560 700 907.45 560 700 907.50 560 700 907.55 560 700 907.60 560 700 907.65 560 700 907.70 560 700 907.75 560 700 907.80 560 700 907.85 560 700 907.90 560 700 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 23HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG1: UG Infil Basin 1 Inflow Area = 0.372 ac, 53.49% Impervious, Inflow Depth = 0.48" for 1.1" event Inflow = 1.47 cfs @ 0.57 hrs, Volume= 0.015 af Outflow = 0.01 cfs @ 1.07 hrs, Volume= 0.015 af, Atten= 99%, Lag= 30.0 min Discarded = 0.01 cfs @ 1.07 hrs, Volume= 0.015 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link N Pro : North Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 895.15' @ 1.07 hrs Surf.Area= 709 sf Storage= 611 cf Plug-Flow detention time= 444.6 min calculated for 0.015 af (100% of inflow) Center-of-Mass det. time= 444.5 min ( 481.2 - 36.6 ) Volume Invert Avail.Storage Storage Description #1A 893.50' 936 cf 10.75'W x 55.50'L x 4.50'H Field A Z=0.5 3,386 cf Overall - 1,046 cf Embedded = 2,340 cf x 40.0% Voids #2A 894.00' 1,046 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside 1,982 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 893.50'0.700 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 896.00'10.0" Round Culvert L= 38.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.20' S= 0.0211 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 0.55 sf Discarded OutFlow Max=0.01 cfs @ 1.07 hrs HW=895.15' (Free Discharge) 1=Exfiltration ( Controls 0.01 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=893.50' (Free Discharge) 2=Culvert ( Controls 0.00 cfs) Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 24HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG1: UG Infil Basin 1 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +10.00' Row Adjustment +3.50' Header x 1 = 53.50' Row Length +12.0" End Stone x 2 = 55.50' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 60.00' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +10.00' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 1,046.3 cf Chamber Storage 3,386.0 cf Field - 1,046.3 cf Chambers = 2,339.7 cf Stone x 40.0% Voids = 935.9 cf Stone Storage Chamber Storage + Stone Storage = 1,982.2 cf = 0.046 af Overall Storage Efficiency = 58.5% Overall System Size = 55.50' x 10.75' x 4.50' 4 Chambers 125.4 cy Field 86.7 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 25HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG1: UG Infil Basin 1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 893.50 0.00 0.00 0.00 2.00 0.00 571 895.07 0.01 0.01 0.00 4.00 0.00 484 894.89 0.01 0.01 0.00 6.00 0.00 398 894.71 0.01 0.01 0.00 8.00 0.00 315 894.52 0.01 0.01 0.00 10.00 0.00 234 894.32 0.01 0.01 0.00 12.00 0.00 156 894.11 0.01 0.01 0.00 14.00 0.00 81 893.83 0.01 0.01 0.00 16.00 0.00 9 893.54 0.01 0.01 0.00 18.00 0.00 0 893.50 0.00 0.00 0.00 20.00 0.00 0 893.50 0.00 0.00 0.00 22.00 0.00 0 893.50 0.00 0.00 0.00 24.00 0.00 0 893.50 0.00 0.00 0.00 26.00 0.00 0 893.50 0.00 0.00 0.00 28.00 0.00 0 893.50 0.00 0.00 0.00 30.00 0.00 0 893.50 0.00 0.00 0.00 32.00 0.00 0 893.50 0.00 0.00 0.00 34.00 0.00 0 893.50 0.00 0.00 0.00 36.00 0.00 0 893.50 0.00 0.00 0.00 38.00 0.00 0 893.50 0.00 0.00 0.00 40.00 0.00 0 893.50 0.00 0.00 0.00 42.00 0.00 0 893.50 0.00 0.00 0.00 44.00 0.00 0 893.50 0.00 0.00 0.00 46.00 0.00 0 893.50 0.00 0.00 0.00 48.00 0.00 0 893.50 0.00 0.00 0.00 50.00 0.00 0 893.50 0.00 0.00 0.00 52.00 0.00 0 893.50 0.00 0.00 0.00 54.00 0.00 0 893.50 0.00 0.00 0.00 56.00 0.00 0 893.50 0.00 0.00 0.00 58.00 0.00 0 893.50 0.00 0.00 0.00 60.00 0.00 0 893.50 0.00 0.00 0.00 62.00 0.00 0 893.50 0.00 0.00 0.00 64.00 0.00 0 893.50 0.00 0.00 0.00 66.00 0.00 0 893.50 0.00 0.00 0.00 68.00 0.00 0 893.50 0.00 0.00 0.00 70.00 0.00 0 893.50 0.00 0.00 0.00 72.00 0.00 0 893.50 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 26HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG1: UG Infil Basin 1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 893.50 0.00 0.00 0.00 893.55 0.01 0.01 0.00 893.60 0.01 0.01 0.00 893.65 0.01 0.01 0.00 893.70 0.01 0.01 0.00 893.75 0.01 0.01 0.00 893.80 0.01 0.01 0.00 893.85 0.01 0.01 0.00 893.90 0.01 0.01 0.00 893.95 0.01 0.01 0.00 894.00 0.01 0.01 0.00 894.05 0.01 0.01 0.00 894.10 0.01 0.01 0.00 894.15 0.01 0.01 0.00 894.20 0.01 0.01 0.00 894.25 0.01 0.01 0.00 894.30 0.01 0.01 0.00 894.35 0.01 0.01 0.00 894.40 0.01 0.01 0.00 894.45 0.01 0.01 0.00 894.50 0.01 0.01 0.00 894.55 0.01 0.01 0.00 894.60 0.01 0.01 0.00 894.65 0.01 0.01 0.00 894.70 0.01 0.01 0.00 894.75 0.01 0.01 0.00 894.80 0.01 0.01 0.00 894.85 0.01 0.01 0.00 894.90 0.01 0.01 0.00 894.95 0.01 0.01 0.00 895.00 0.01 0.01 0.00 895.05 0.01 0.01 0.00 895.10 0.01 0.01 0.00 895.15 0.01 0.01 0.00 895.20 0.01 0.01 0.00 895.25 0.01 0.01 0.00 895.30 0.01 0.01 0.00 895.35 0.01 0.01 0.00 895.40 0.01 0.01 0.00 895.45 0.01 0.01 0.00 895.50 0.01 0.01 0.00 895.55 0.01 0.01 0.00 895.60 0.01 0.01 0.00 895.65 0.01 0.01 0.00 895.70 0.01 0.01 0.00 895.75 0.01 0.01 0.00 895.80 0.01 0.01 0.00 895.85 0.01 0.01 0.00 895.90 0.01 0.01 0.00 895.95 0.01 0.01 0.00 896.00 0.01 0.01 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 896.05 0.02 0.01 0.01 896.10 0.04 0.01 0.03 896.15 0.08 0.01 0.06 896.20 0.13 0.01 0.12 896.25 0.19 0.01 0.18 896.30 0.27 0.01 0.26 896.35 0.36 0.01 0.35 896.40 0.46 0.01 0.44 896.45 0.57 0.01 0.55 896.50 0.68 0.01 0.66 896.55 0.80 0.02 0.78 896.60 0.92 0.02 0.90 896.65 1.04 0.02 1.03 896.70 1.16 0.02 1.15 896.75 1.28 0.02 1.27 896.80 1.40 0.02 1.38 896.85 1.51 0.02 1.49 896.90 1.61 0.02 1.59 896.95 1.69 0.02 1.68 897.00 1.76 0.02 1.74 897.05 1.79 0.02 1.78 897.10 1.77 0.02 1.75 897.15 1.75 0.02 1.73 897.20 1.79 0.02 1.77 897.25 1.82 0.02 1.81 897.30 1.86 0.02 1.85 897.35 1.90 0.02 1.88 897.40 1.93 0.02 1.92 897.45 1.97 0.02 1.95 897.50 2.00 0.02 1.99 897.55 2.04 0.02 2.02 897.60 2.07 0.02 2.05 897.65 2.10 0.02 2.08 897.70 2.13 0.02 2.12 897.75 2.17 0.02 2.15 897.80 2.20 0.02 2.18 897.85 2.23 0.02 2.21 897.90 2.26 0.02 2.24 897.95 2.29 0.02 2.27 898.00 2.32 0.02 2.30 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 27HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG1: UG Infil Basin 1 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 893.50 597 0 893.55 600 12 893.60 603 24 893.65 607 36 893.70 610 48 893.75 613 60 893.80 617 73 893.85 620 85 893.90 623 98 893.95 627 110 894.00 630 123 894.05 633 137 894.10 637 153 894.15 640 170 894.20 643 188 894.25 647 206 894.30 650 226 894.35 654 245 894.40 657 265 894.45 660 286 894.50 664 307 894.55 667 329 894.60 671 350 894.65 674 373 894.70 678 395 894.75 681 418 894.80 684 441 894.85 688 464 894.90 691 488 894.95 695 512 895.00 698 536 895.05 702 561 895.10 705 585 895.15 709 610 895.20 712 635 895.25 716 660 895.30 719 686 895.35 723 711 895.40 726 737 895.45 730 762 895.50 733 788 895.55 737 814 895.60 740 841 895.65 744 867 895.70 747 893 895.75 751 919 895.80 754 946 895.85 758 972 895.90 761 999 895.95 765 1,026 896.00 769 1,052 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.05 772 1,079 896.10 776 1,106 896.15 779 1,132 896.20 783 1,159 896.25 786 1,186 896.30 790 1,212 896.35 794 1,239 896.40 797 1,266 896.45 801 1,292 896.50 804 1,319 896.55 808 1,345 896.60 812 1,371 896.65 815 1,397 896.70 819 1,423 896.75 823 1,449 896.80 826 1,475 896.85 830 1,501 896.90 833 1,526 896.95 837 1,551 897.00 841 1,576 897.05 844 1,601 897.10 848 1,625 897.15 852 1,649 897.20 855 1,673 897.25 859 1,696 897.30 863 1,719 897.35 867 1,741 897.40 870 1,763 897.45 874 1,784 897.50 878 1,803 897.55 881 1,821 897.60 885 1,838 897.65 889 1,856 897.70 893 1,874 897.75 896 1,892 897.80 900 1,910 897.85 904 1,928 897.90 907 1,946 897.95 911 1,964 898.00 915 1,982 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 28HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG3: UG Infil Basin 3 Inflow Area = 0.519 ac, 33.14% Impervious, Inflow Depth = 0.29" for 1.1" event Inflow = 1.27 cfs @ 0.57 hrs, Volume= 0.013 af Outflow = 0.01 cfs @ 1.07 hrs, Volume= 0.013 af, Atten= 99%, Lag= 30.3 min Discarded = 0.01 cfs @ 1.07 hrs, Volume= 0.013 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 880.72' @ 1.07 hrs Surf.Area= 595 sf Storage= 533 cf Plug-Flow detention time= 557.0 min calculated for 0.013 af (100% of inflow) Center-of-Mass det. time= 557.1 min ( 593.7 - 36.6 ) Volume Invert Avail.Storage Storage Description #1A 879.00' 787 cf 10.75'W x 46.00'L x 4.50'H Field A Z=0.5 2,830 cf Overall - 863 cf Embedded = 1,967 cf x 40.0% Voids #2A 879.50' 863 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside #3 883.50' 36 cf Custom Stage Data (Prismatic) Listed below (Recalc) 1,686 cf Total Available Storage Storage Group A created with Chamber Wizard Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.50 20 0 0 884.30 70 36 36 Device Routing Invert Outlet Devices #1 Discarded 879.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 883.54'24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.01 cfs @ 1.07 hrs HW=880.72' (Free Discharge) 1=Exfiltration ( Controls 0.01 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' (Free Discharge) 2=Orifice/Grate ( Controls 0.00 cfs) Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 29HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG3: UG Infil Basin 3 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +0.50' Row Adjustment +3.50' Header x 1 = 44.00' Row Length +12.0" End Stone x 2 = 46.00' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 50.50' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +0.50' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 863.5 cf Chamber Storage 2,830.2 cf Field - 863.5 cf Chambers = 1,966.7 cf Stone x 40.0% Voids = 786.7 cf Stone Storage Chamber Storage + Stone Storage = 1,650.2 cf = 0.038 af Overall Storage Efficiency = 58.3% Overall System Size = 46.00' x 10.75' x 4.50' 4 Chambers 104.8 cy Field 72.8 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 30HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG3: UG Infil Basin 3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 879.00 0.00 0.00 0.00 2.00 0.00 503 880.64 0.01 0.01 0.00 4.00 0.00 439 880.48 0.01 0.01 0.00 6.00 0.00 377 880.33 0.01 0.01 0.00 8.00 0.00 318 880.17 0.01 0.01 0.00 10.00 0.00 262 880.02 0.01 0.01 0.00 12.00 0.00 208 879.87 0.01 0.01 0.00 14.00 0.00 158 879.71 0.01 0.01 0.00 16.00 0.00 110 879.54 0.01 0.01 0.00 18.00 0.00 66 879.33 0.01 0.01 0.00 20.00 0.00 25 879.12 0.01 0.01 0.00 22.00 0.00 1 879.01 0.00 0.00 0.00 24.00 0.00 0 879.00 0.00 0.00 0.00 26.00 0.00 0 879.00 0.00 0.00 0.00 28.00 0.00 0 879.00 0.00 0.00 0.00 30.00 0.00 0 879.00 0.00 0.00 0.00 32.00 0.00 0 879.00 0.00 0.00 0.00 34.00 0.00 0 879.00 0.00 0.00 0.00 36.00 0.00 0 879.00 0.00 0.00 0.00 38.00 0.00 0 879.00 0.00 0.00 0.00 40.00 0.00 0 879.00 0.00 0.00 0.00 42.00 0.00 0 879.00 0.00 0.00 0.00 44.00 0.00 0 879.00 0.00 0.00 0.00 46.00 0.00 0 879.00 0.00 0.00 0.00 48.00 0.00 0 879.00 0.00 0.00 0.00 50.00 0.00 0 879.00 0.00 0.00 0.00 52.00 0.00 0 879.00 0.00 0.00 0.00 54.00 0.00 0 879.00 0.00 0.00 0.00 56.00 0.00 0 879.00 0.00 0.00 0.00 58.00 0.00 0 879.00 0.00 0.00 0.00 60.00 0.00 0 879.00 0.00 0.00 0.00 62.00 0.00 0 879.00 0.00 0.00 0.00 64.00 0.00 0 879.00 0.00 0.00 0.00 66.00 0.00 0 879.00 0.00 0.00 0.00 68.00 0.00 0 879.00 0.00 0.00 0.00 70.00 0.00 0 879.00 0.00 0.00 0.00 72.00 0.00 0 879.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 31HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG3: UG Infil Basin 3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 879.00 0.00 0.00 0.00 879.10 0.01 0.01 0.00 879.20 0.01 0.01 0.00 879.30 0.01 0.01 0.00 879.40 0.01 0.01 0.00 879.50 0.01 0.01 0.00 879.60 0.01 0.01 0.00 879.70 0.01 0.01 0.00 879.80 0.01 0.01 0.00 879.90 0.01 0.01 0.00 880.00 0.01 0.01 0.00 880.10 0.01 0.01 0.00 880.20 0.01 0.01 0.00 880.30 0.01 0.01 0.00 880.40 0.01 0.01 0.00 880.50 0.01 0.01 0.00 880.60 0.01 0.01 0.00 880.70 0.01 0.01 0.00 880.80 0.01 0.01 0.00 880.90 0.01 0.01 0.00 881.00 0.01 0.01 0.00 881.10 0.01 0.01 0.00 881.20 0.01 0.01 0.00 881.30 0.01 0.01 0.00 881.40 0.01 0.01 0.00 881.50 0.01 0.01 0.00 881.60 0.01 0.01 0.00 881.70 0.01 0.01 0.00 881.80 0.01 0.01 0.00 881.90 0.01 0.01 0.00 882.00 0.01 0.01 0.00 882.10 0.01 0.01 0.00 882.20 0.01 0.01 0.00 882.30 0.01 0.01 0.00 882.40 0.01 0.01 0.00 882.50 0.01 0.01 0.00 882.60 0.01 0.01 0.00 882.70 0.01 0.01 0.00 882.80 0.02 0.02 0.00 882.90 0.02 0.02 0.00 883.00 0.02 0.02 0.00 883.10 0.02 0.02 0.00 883.20 0.02 0.02 0.00 883.30 0.02 0.02 0.00 883.40 0.02 0.02 0.00 883.50 0.02 0.02 0.00 883.60 0.32 0.02 0.30 883.70 1.33 0.02 1.31 883.80 2.74 0.02 2.72 883.90 4.46 0.02 4.44 884.00 6.43 0.02 6.41 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 884.10 8.63 0.02 8.61 884.20 11.04 0.02 11.02 884.30 13.21 0.02 13.19 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 32HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG3: UG Infil Basin 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 879.00 495 0 879.10 500 20 879.20 506 40 879.30 512 60 879.40 517 81 879.50 523 102 879.60 529 127 879.70 535 156 879.80 541 187 879.90 546 220 880.00 552 255 880.10 558 291 880.20 564 328 880.30 570 366 880.40 576 405 880.50 582 445 880.60 588 486 880.70 594 527 880.80 600 569 880.90 606 611 881.00 612 654 881.10 618 697 881.20 624 741 881.30 630 785 881.40 636 829 881.50 643 874 881.60 649 918 881.70 655 962 881.80 661 1,007 881.90 667 1,051 882.00 674 1,095 882.10 680 1,139 882.20 686 1,182 882.30 693 1,225 882.40 699 1,268 882.50 705 1,310 882.60 712 1,351 882.70 718 1,391 882.80 725 1,429 882.90 731 1,466 883.00 738 1,499 883.10 744 1,529 883.20 750 1,559 883.30 757 1,589 883.40 764 1,620 883.50 790 1,650 883.60 796 1,652 883.70 803 1,655 883.80 809 1,659 883.90 815 1,663 884.00 821 1,668 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.10 828 1,673 884.20 834 1,679 884.30 840 1,686 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 33HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Ex: North Existing Inflow Area = 0.841 ac, 7.02% Impervious, Inflow Depth = 0.06" for 1.1" event Inflow = 0.44 cfs @ 0.57 hrs, Volume= 0.004 af Primary = 0.44 cfs @ 0.57 hrs, Volume= 0.004 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 34HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Ex: North Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.01 0.00 0.01 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.00 0.00 0.00 14.00 0.00 0.00 0.00 15.00 0.00 0.00 0.00 16.00 0.00 0.00 0.00 17.00 0.00 0.00 0.00 18.00 0.00 0.00 0.00 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 35HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Pro: North Proposed Inflow Area = 0.902 ac, 22.06% Impervious, Inflow Depth = 0.00" for 1.1" event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 36HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Pro: North Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.00 0.00 0.00 14.00 0.00 0.00 0.00 15.00 0.00 0.00 0.00 16.00 0.00 0.00 0.00 17.00 0.00 0.00 0.00 18.00 0.00 0.00 0.00 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 37HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Ex: South Existing Inflow Area = 0.730 ac, 24.38% Impervious, Inflow Depth = 0.22" for 1.1" event Inflow = 1.32 cfs @ 0.57 hrs, Volume= 0.013 af Primary = 1.32 cfs @ 0.57 hrs, Volume= 0.013 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 38HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Ex: South Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.03 0.00 0.03 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.00 0.00 0.00 14.00 0.00 0.00 0.00 15.00 0.00 0.00 0.00 16.00 0.00 0.00 0.00 17.00 0.00 0.00 0.00 18.00 0.00 0.00 0.00 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 39HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Pro: South Proposed Inflow Area = 0.680 ac, 32.94% Impervious, Inflow Depth = 0.00" for 1.1" event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 scaled to 1.00 hrs 1.1" Rainfall=1.10"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 40HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Pro: South Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.00 0.00 0.00 14.00 0.00 0.00 0.00 15.00 0.00 0.00 0.00 16.00 0.00 0.00 0.00 17.00 0.00 0.00 0.00 18.00 0.00 0.00 0.00 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 41HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=0.372 ac 53.49% Impervious Runoff Depth=1.56"Subcatchment NA: North A Proposed Tc=5.0 min CN=61/98 Runoff=0.94 cfs 0.048 af Runoff Area=0.841 ac 7.02% Impervious Runoff Depth=0.48"Subcatchment NA Ex: North Exist Tc=5.0 min CN=61/98 Runoff=0.57 cfs 0.034 af Runoff Area=0.530 ac 0.00% Impervious Runoff Depth=0.32"Subcatchment NB: North B Proposed Tc=5.0 min CN=61/0 Runoff=0.22 cfs 0.014 af Runoff Area=0.087 ac 59.77% Impervious Runoff Depth=1.70"Subcatchment SA: South A Proposed Tc=5.0 min CN=61/98 Runoff=0.24 cfs 0.012 af Runoff Area=0.730 ac 24.38% Impervious Runoff Depth=0.88"Subcatchment SA Ex: South Exist Tc=5.0 min CN=61/98 Runoff=1.00 cfs 0.054 af Runoff Area=0.055 ac 0.00% Impervious Runoff Depth=0.32"Subcatchment SB: South B Proposed Tc=5.0 min CN=61/0 Runoff=0.02 cfs 0.001 af Runoff Area=0.519 ac 33.14% Impervious Runoff Depth=1.09"Subcatchment SC: South C Proposed Tc=5.0 min CN=61/98 Runoff=0.89 cfs 0.047 af Runoff Area=0.019 ac 0.00% Impervious Runoff Depth=0.32"Subcatchment SD: South D Proposed Tc=5.0 min CN=61/0 Runoff=0.01 cfs 0.001 af Peak Elev=906.38' Storage=406 cf Inflow=0.24 cfs 0.012 afPond RG 2: rain garden Discarded=0.00 cfs 0.012 af Primary=0.00 cfs 0.000 af Outflow=0.00 cfs 0.012 af Peak Elev=896.19' Storage=1,155 cf Inflow=0.94 cfs 0.048 afPond UG1: UG Infil Basin 1 Discarded=0.01 cfs 0.039 af Primary=0.11 cfs 0.009 af Outflow=0.12 cfs 0.048 af Peak Elev=882.86' Storage=1,450 cf Inflow=0.89 cfs 0.047 afPond UG3: UG Infil Basin 3 Discarded=0.02 cfs 0.047 af Primary=0.00 cfs 0.000 af Outflow=0.02 cfs 0.047 af Inflow=0.57 cfs 0.034 afLink N Ex: North Existing Primary=0.57 cfs 0.034 af Inflow=0.22 cfs 0.023 afLink N Pro: North Proposed Primary=0.22 cfs 0.023 af Inflow=1.00 cfs 0.054 afLink S Ex: South Existing Primary=1.00 cfs 0.054 af Inflow=0.03 cfs 0.002 afLink S Pro: South Proposed Primary=0.03 cfs 0.002 af Total Runoff Area = 3.153 ac Runoff Volume = 0.211 af Average Runoff Depth = 0.80" 79.07% Pervious = 2.493 ac 20.93% Impervious = 0.660 ac Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 42HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA: North A Proposed Runoff = 0.94 cfs @ 12.12 hrs, Volume= 0.048 af, Depth= 1.56" Routed to Pond UG1 : UG Infil Basin 1 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.199 98 IMPERVIOUS 0.173 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.372 81 Weighted Average 0.173 61 46.51% Pervious Area 0.199 98 53.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 43HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA: North A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.04 0.00 8.00 0.24 0.00 0.10 0.01 10.00 0.39 0.00 0.22 0.02 12.00 1.33 0.00 1.11 0.46 14.00 2.48 0.19 2.25 0.03 16.00 2.63 0.24 2.40 0.01 18.00 2.72 0.27 2.49 0.01 20.00 2.80 0.29 2.56 0.01 22.00 2.84 0.31 2.61 0.00 24.00 2.87 0.32 2.64 0.00 26.00 2.87 0.32 2.64 0.00 28.00 2.87 0.32 2.64 0.00 30.00 2.87 0.32 2.64 0.00 32.00 2.87 0.32 2.64 0.00 34.00 2.87 0.32 2.64 0.00 36.00 2.87 0.32 2.64 0.00 38.00 2.87 0.32 2.64 0.00 40.00 2.87 0.32 2.64 0.00 42.00 2.87 0.32 2.64 0.00 44.00 2.87 0.32 2.64 0.00 46.00 2.87 0.32 2.64 0.00 48.00 2.87 0.32 2.64 0.00 50.00 2.87 0.32 2.64 0.00 52.00 2.87 0.32 2.64 0.00 54.00 2.87 0.32 2.64 0.00 56.00 2.87 0.32 2.64 0.00 58.00 2.87 0.32 2.64 0.00 60.00 2.87 0.32 2.64 0.00 62.00 2.87 0.32 2.64 0.00 64.00 2.87 0.32 2.64 0.00 66.00 2.87 0.32 2.64 0.00 68.00 2.87 0.32 2.64 0.00 70.00 2.87 0.32 2.64 0.00 72.00 2.87 0.32 2.64 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 44HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA Ex: North Exist Runoff = 0.57 cfs @ 12.14 hrs, Volume= 0.034 af, Depth= 0.48" Routed to Link N Ex : North Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.059 98 IMPERVIOUS 0.782 61 >75% Grass cover, Good, HSG B 0.841 64 Weighted Average 0.782 61 92.98% Pervious Area 0.059 98 7.02% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 45HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA Ex: North Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.04 0.00 8.00 0.24 0.00 0.10 0.00 10.00 0.39 0.00 0.22 0.01 12.00 1.33 0.00 1.11 0.14 14.00 2.48 0.19 2.25 0.03 16.00 2.63 0.24 2.40 0.02 18.00 2.72 0.27 2.49 0.01 20.00 2.80 0.29 2.56 0.01 22.00 2.84 0.31 2.61 0.01 24.00 2.87 0.32 2.64 0.00 26.00 2.87 0.32 2.64 0.00 28.00 2.87 0.32 2.64 0.00 30.00 2.87 0.32 2.64 0.00 32.00 2.87 0.32 2.64 0.00 34.00 2.87 0.32 2.64 0.00 36.00 2.87 0.32 2.64 0.00 38.00 2.87 0.32 2.64 0.00 40.00 2.87 0.32 2.64 0.00 42.00 2.87 0.32 2.64 0.00 44.00 2.87 0.32 2.64 0.00 46.00 2.87 0.32 2.64 0.00 48.00 2.87 0.32 2.64 0.00 50.00 2.87 0.32 2.64 0.00 52.00 2.87 0.32 2.64 0.00 54.00 2.87 0.32 2.64 0.00 56.00 2.87 0.32 2.64 0.00 58.00 2.87 0.32 2.64 0.00 60.00 2.87 0.32 2.64 0.00 62.00 2.87 0.32 2.64 0.00 64.00 2.87 0.32 2.64 0.00 66.00 2.87 0.32 2.64 0.00 68.00 2.87 0.32 2.64 0.00 70.00 2.87 0.32 2.64 0.00 72.00 2.87 0.32 2.64 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 46HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NB: North B Proposed Runoff = 0.22 cfs @ 12.14 hrs, Volume= 0.014 af, Depth= 0.32" Routed to Link N Pro : North Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.530 61 >75% Grass cover, Good, HSG B 0.530 61 Weighted Average 0.530 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 47HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NB: North B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.00 0.00 8.00 0.24 0.00 0.00 0.00 10.00 0.39 0.00 0.00 0.00 12.00 1.33 0.00 0.00 0.00 14.00 2.48 0.19 0.00 0.02 16.00 2.63 0.24 0.00 0.01 18.00 2.72 0.27 0.00 0.01 20.00 2.80 0.29 0.00 0.01 22.00 2.84 0.31 0.00 0.00 24.00 2.87 0.32 0.00 0.00 26.00 2.87 0.32 0.00 0.00 28.00 2.87 0.32 0.00 0.00 30.00 2.87 0.32 0.00 0.00 32.00 2.87 0.32 0.00 0.00 34.00 2.87 0.32 0.00 0.00 36.00 2.87 0.32 0.00 0.00 38.00 2.87 0.32 0.00 0.00 40.00 2.87 0.32 0.00 0.00 42.00 2.87 0.32 0.00 0.00 44.00 2.87 0.32 0.00 0.00 46.00 2.87 0.32 0.00 0.00 48.00 2.87 0.32 0.00 0.00 50.00 2.87 0.32 0.00 0.00 52.00 2.87 0.32 0.00 0.00 54.00 2.87 0.32 0.00 0.00 56.00 2.87 0.32 0.00 0.00 58.00 2.87 0.32 0.00 0.00 60.00 2.87 0.32 0.00 0.00 62.00 2.87 0.32 0.00 0.00 64.00 2.87 0.32 0.00 0.00 66.00 2.87 0.32 0.00 0.00 68.00 2.87 0.32 0.00 0.00 70.00 2.87 0.32 0.00 0.00 72.00 2.87 0.32 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 48HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA: South A Proposed Runoff = 0.24 cfs @ 12.12 hrs, Volume= 0.012 af, Depth= 1.70" Routed to Pond RG 2 : rain garden Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.052 98 IMPERVIOUS 0.035 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.087 83 Weighted Average 0.035 61 40.23% Pervious Area 0.052 98 59.77% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 49HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA: South A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.04 0.00 8.00 0.24 0.00 0.10 0.00 10.00 0.39 0.00 0.22 0.00 12.00 1.33 0.00 1.11 0.12 14.00 2.48 0.19 2.25 0.01 16.00 2.63 0.24 2.40 0.00 18.00 2.72 0.27 2.49 0.00 20.00 2.80 0.29 2.56 0.00 22.00 2.84 0.31 2.61 0.00 24.00 2.87 0.32 2.64 0.00 26.00 2.87 0.32 2.64 0.00 28.00 2.87 0.32 2.64 0.00 30.00 2.87 0.32 2.64 0.00 32.00 2.87 0.32 2.64 0.00 34.00 2.87 0.32 2.64 0.00 36.00 2.87 0.32 2.64 0.00 38.00 2.87 0.32 2.64 0.00 40.00 2.87 0.32 2.64 0.00 42.00 2.87 0.32 2.64 0.00 44.00 2.87 0.32 2.64 0.00 46.00 2.87 0.32 2.64 0.00 48.00 2.87 0.32 2.64 0.00 50.00 2.87 0.32 2.64 0.00 52.00 2.87 0.32 2.64 0.00 54.00 2.87 0.32 2.64 0.00 56.00 2.87 0.32 2.64 0.00 58.00 2.87 0.32 2.64 0.00 60.00 2.87 0.32 2.64 0.00 62.00 2.87 0.32 2.64 0.00 64.00 2.87 0.32 2.64 0.00 66.00 2.87 0.32 2.64 0.00 68.00 2.87 0.32 2.64 0.00 70.00 2.87 0.32 2.64 0.00 72.00 2.87 0.32 2.64 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 50HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA Ex: South Exist Runoff = 1.00 cfs @ 12.13 hrs, Volume= 0.054 af, Depth= 0.88" Routed to Link S Ex : South Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.178 98 IMPERVIOUS 0.552 61 >75% Grass cover, Good, HSG B 0.730 70 Weighted Average 0.552 61 75.62% Pervious Area 0.178 98 24.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 51HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA Ex: South Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.04 0.00 8.00 0.24 0.00 0.10 0.01 10.00 0.39 0.00 0.22 0.02 12.00 1.33 0.00 1.11 0.41 14.00 2.48 0.19 2.25 0.04 16.00 2.63 0.24 2.40 0.02 18.00 2.72 0.27 2.49 0.02 20.00 2.80 0.29 2.56 0.01 22.00 2.84 0.31 2.61 0.01 24.00 2.87 0.32 2.64 0.00 26.00 2.87 0.32 2.64 0.00 28.00 2.87 0.32 2.64 0.00 30.00 2.87 0.32 2.64 0.00 32.00 2.87 0.32 2.64 0.00 34.00 2.87 0.32 2.64 0.00 36.00 2.87 0.32 2.64 0.00 38.00 2.87 0.32 2.64 0.00 40.00 2.87 0.32 2.64 0.00 42.00 2.87 0.32 2.64 0.00 44.00 2.87 0.32 2.64 0.00 46.00 2.87 0.32 2.64 0.00 48.00 2.87 0.32 2.64 0.00 50.00 2.87 0.32 2.64 0.00 52.00 2.87 0.32 2.64 0.00 54.00 2.87 0.32 2.64 0.00 56.00 2.87 0.32 2.64 0.00 58.00 2.87 0.32 2.64 0.00 60.00 2.87 0.32 2.64 0.00 62.00 2.87 0.32 2.64 0.00 64.00 2.87 0.32 2.64 0.00 66.00 2.87 0.32 2.64 0.00 68.00 2.87 0.32 2.64 0.00 70.00 2.87 0.32 2.64 0.00 72.00 2.87 0.32 2.64 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 52HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SB: South B Proposed Runoff = 0.02 cfs @ 12.14 hrs, Volume= 0.001 af, Depth= 0.32" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.055 61 >75% Grass cover, Good, HSG B 0.055 61 Weighted Average 0.055 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 53HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SB: South B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.00 0.00 8.00 0.24 0.00 0.00 0.00 10.00 0.39 0.00 0.00 0.00 12.00 1.33 0.00 0.00 0.00 14.00 2.48 0.19 0.00 0.00 16.00 2.63 0.24 0.00 0.00 18.00 2.72 0.27 0.00 0.00 20.00 2.80 0.29 0.00 0.00 22.00 2.84 0.31 0.00 0.00 24.00 2.87 0.32 0.00 0.00 26.00 2.87 0.32 0.00 0.00 28.00 2.87 0.32 0.00 0.00 30.00 2.87 0.32 0.00 0.00 32.00 2.87 0.32 0.00 0.00 34.00 2.87 0.32 0.00 0.00 36.00 2.87 0.32 0.00 0.00 38.00 2.87 0.32 0.00 0.00 40.00 2.87 0.32 0.00 0.00 42.00 2.87 0.32 0.00 0.00 44.00 2.87 0.32 0.00 0.00 46.00 2.87 0.32 0.00 0.00 48.00 2.87 0.32 0.00 0.00 50.00 2.87 0.32 0.00 0.00 52.00 2.87 0.32 0.00 0.00 54.00 2.87 0.32 0.00 0.00 56.00 2.87 0.32 0.00 0.00 58.00 2.87 0.32 0.00 0.00 60.00 2.87 0.32 0.00 0.00 62.00 2.87 0.32 0.00 0.00 64.00 2.87 0.32 0.00 0.00 66.00 2.87 0.32 0.00 0.00 68.00 2.87 0.32 0.00 0.00 70.00 2.87 0.32 0.00 0.00 72.00 2.87 0.32 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 54HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SC: South C Proposed Runoff = 0.89 cfs @ 12.13 hrs, Volume= 0.047 af, Depth= 1.09" Routed to Pond UG3 : UG Infil Basin 3 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.172 98 IMPERVIOUS 0.347 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.519 73 Weighted Average 0.347 61 66.86% Pervious Area 0.172 98 33.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 55HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SC: South C Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.04 0.00 8.00 0.24 0.00 0.10 0.01 10.00 0.39 0.00 0.22 0.02 12.00 1.33 0.00 1.11 0.40 14.00 2.48 0.19 2.25 0.03 16.00 2.63 0.24 2.40 0.02 18.00 2.72 0.27 2.49 0.01 20.00 2.80 0.29 2.56 0.01 22.00 2.84 0.31 2.61 0.01 24.00 2.87 0.32 2.64 0.00 26.00 2.87 0.32 2.64 0.00 28.00 2.87 0.32 2.64 0.00 30.00 2.87 0.32 2.64 0.00 32.00 2.87 0.32 2.64 0.00 34.00 2.87 0.32 2.64 0.00 36.00 2.87 0.32 2.64 0.00 38.00 2.87 0.32 2.64 0.00 40.00 2.87 0.32 2.64 0.00 42.00 2.87 0.32 2.64 0.00 44.00 2.87 0.32 2.64 0.00 46.00 2.87 0.32 2.64 0.00 48.00 2.87 0.32 2.64 0.00 50.00 2.87 0.32 2.64 0.00 52.00 2.87 0.32 2.64 0.00 54.00 2.87 0.32 2.64 0.00 56.00 2.87 0.32 2.64 0.00 58.00 2.87 0.32 2.64 0.00 60.00 2.87 0.32 2.64 0.00 62.00 2.87 0.32 2.64 0.00 64.00 2.87 0.32 2.64 0.00 66.00 2.87 0.32 2.64 0.00 68.00 2.87 0.32 2.64 0.00 70.00 2.87 0.32 2.64 0.00 72.00 2.87 0.32 2.64 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 56HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SD: South D Proposed Runoff = 0.01 cfs @ 12.14 hrs, Volume= 0.001 af, Depth= 0.32" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 2-YR Rainfall=2.87" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.019 61 >75% Grass cover, Good, HSG B 0.019 61 Weighted Average 0.019 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 57HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SD: South D Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.03 0.00 0.00 0.00 4.00 0.07 0.00 0.00 0.00 6.00 0.15 0.00 0.00 0.00 8.00 0.24 0.00 0.00 0.00 10.00 0.39 0.00 0.00 0.00 12.00 1.33 0.00 0.00 0.00 14.00 2.48 0.19 0.00 0.00 16.00 2.63 0.24 0.00 0.00 18.00 2.72 0.27 0.00 0.00 20.00 2.80 0.29 0.00 0.00 22.00 2.84 0.31 0.00 0.00 24.00 2.87 0.32 0.00 0.00 26.00 2.87 0.32 0.00 0.00 28.00 2.87 0.32 0.00 0.00 30.00 2.87 0.32 0.00 0.00 32.00 2.87 0.32 0.00 0.00 34.00 2.87 0.32 0.00 0.00 36.00 2.87 0.32 0.00 0.00 38.00 2.87 0.32 0.00 0.00 40.00 2.87 0.32 0.00 0.00 42.00 2.87 0.32 0.00 0.00 44.00 2.87 0.32 0.00 0.00 46.00 2.87 0.32 0.00 0.00 48.00 2.87 0.32 0.00 0.00 50.00 2.87 0.32 0.00 0.00 52.00 2.87 0.32 0.00 0.00 54.00 2.87 0.32 0.00 0.00 56.00 2.87 0.32 0.00 0.00 58.00 2.87 0.32 0.00 0.00 60.00 2.87 0.32 0.00 0.00 62.00 2.87 0.32 0.00 0.00 64.00 2.87 0.32 0.00 0.00 66.00 2.87 0.32 0.00 0.00 68.00 2.87 0.32 0.00 0.00 70.00 2.87 0.32 0.00 0.00 72.00 2.87 0.32 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 58HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond RG 2: rain garden Inflow Area = 0.087 ac, 59.77% Impervious, Inflow Depth = 1.70" for 2-YR event Inflow = 0.24 cfs @ 12.12 hrs, Volume= 0.012 af Outflow = 0.00 cfs @ 15.10 hrs, Volume= 0.012 af, Atten= 98%, Lag= 178.4 min Discarded = 0.00 cfs @ 15.10 hrs, Volume= 0.012 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 906.38' @ 15.10 hrs Surf.Area= 386 sf Storage= 406 cf Plug-Flow detention time= 1,227.3 min calculated for 0.012 af (98% of inflow) Center-of-Mass det. time= 1,216.3 min ( 1,978.6 - 762.3 ) Volume Invert Avail.Storage Storage Description #1 904.00' 700 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 0 0 0 906.00 280 280 280 907.00 560 420 700 Device Routing Invert Outlet Devices #1 Discarded 904.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 906.90'10.0' long x 1.00' rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0' Crest Height Discarded OutFlow Max=0.00 cfs @ 15.10 hrs HW=906.38' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=904.00' (Free Discharge) 2=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 59HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond RG 2: rain garden Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 904.00 0.00 0.00 0.00 2.00 0.00 0 904.00 0.00 0.00 0.00 4.00 0.00 1 904.09 0.00 0.00 0.00 6.00 0.00 4 904.25 0.00 0.00 0.00 8.00 0.00 12 904.42 0.00 0.00 0.00 10.00 0.00 30 904.65 0.00 0.00 0.00 12.00 0.12 154 905.48 0.00 0.00 0.00 14.00 0.01 399 906.36 0.00 0.00 0.00 16.00 0.00 404 906.37 0.00 0.00 0.00 18.00 0.00 397 906.35 0.00 0.00 0.00 20.00 0.00 384 906.32 0.00 0.00 0.00 22.00 0.00 367 906.27 0.00 0.00 0.00 24.00 0.00 347 906.21 0.00 0.00 0.00 26.00 0.00 321 906.14 0.00 0.00 0.00 28.00 0.00 297 906.06 0.00 0.00 0.00 30.00 0.00 275 905.98 0.00 0.00 0.00 32.00 0.00 254 905.90 0.00 0.00 0.00 34.00 0.00 234 905.83 0.00 0.00 0.00 36.00 0.00 214 905.75 0.00 0.00 0.00 38.00 0.00 196 905.67 0.00 0.00 0.00 40.00 0.00 178 905.60 0.00 0.00 0.00 42.00 0.00 162 905.52 0.00 0.00 0.00 44.00 0.00 146 905.44 0.00 0.00 0.00 46.00 0.00 130 905.37 0.00 0.00 0.00 48.00 0.00 116 905.29 0.00 0.00 0.00 50.00 0.00 103 905.21 0.00 0.00 0.00 52.00 0.00 90 905.14 0.00 0.00 0.00 54.00 0.00 79 905.06 0.00 0.00 0.00 56.00 0.00 68 904.98 0.00 0.00 0.00 58.00 0.00 58 904.91 0.00 0.00 0.00 60.00 0.00 48 904.83 0.00 0.00 0.00 62.00 0.00 40 904.75 0.00 0.00 0.00 64.00 0.00 32 904.68 0.00 0.00 0.00 66.00 0.00 25 904.60 0.00 0.00 0.00 68.00 0.00 19 904.53 0.00 0.00 0.00 70.00 0.00 14 904.45 0.00 0.00 0.00 72.00 0.00 10 904.38 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 60HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond RG 2: rain garden Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 904.00 0.00 0.00 0.00 904.05 0.00 0.00 0.00 904.10 0.00 0.00 0.00 904.15 0.00 0.00 0.00 904.20 0.00 0.00 0.00 904.25 0.00 0.00 0.00 904.30 0.00 0.00 0.00 904.35 0.00 0.00 0.00 904.40 0.00 0.00 0.00 904.45 0.00 0.00 0.00 904.50 0.00 0.00 0.00 904.55 0.00 0.00 0.00 904.60 0.00 0.00 0.00 904.65 0.00 0.00 0.00 904.70 0.00 0.00 0.00 904.75 0.00 0.00 0.00 904.80 0.00 0.00 0.00 904.85 0.00 0.00 0.00 904.90 0.00 0.00 0.00 904.95 0.00 0.00 0.00 905.00 0.00 0.00 0.00 905.05 0.00 0.00 0.00 905.10 0.00 0.00 0.00 905.15 0.00 0.00 0.00 905.20 0.00 0.00 0.00 905.25 0.00 0.00 0.00 905.30 0.00 0.00 0.00 905.35 0.00 0.00 0.00 905.40 0.00 0.00 0.00 905.45 0.00 0.00 0.00 905.50 0.00 0.00 0.00 905.55 0.00 0.00 0.00 905.60 0.00 0.00 0.00 905.65 0.00 0.00 0.00 905.70 0.00 0.00 0.00 905.75 0.00 0.00 0.00 905.80 0.00 0.00 0.00 905.85 0.00 0.00 0.00 905.90 0.00 0.00 0.00 905.95 0.00 0.00 0.00 906.00 0.00 0.00 0.00 906.05 0.00 0.00 0.00 906.10 0.00 0.00 0.00 906.15 0.00 0.00 0.00 906.20 0.00 0.00 0.00 906.25 0.00 0.00 0.00 906.30 0.00 0.00 0.00 906.35 0.00 0.00 0.00 906.40 0.00 0.00 0.00 906.45 0.00 0.00 0.00 906.50 0.00 0.00 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 906.55 0.00 0.00 0.00 906.60 0.00 0.00 0.00 906.65 0.00 0.00 0.00 906.70 0.01 0.01 0.00 906.75 0.01 0.01 0.00 906.80 0.01 0.01 0.00 906.85 0.01 0.01 0.00 906.90 0.01 0.01 0.00 906.95 0.37 0.01 0.37 907.00 1.05 0.01 1.04 907.05 1.93 0.01 1.93 907.10 2.99 0.01 2.98 907.15 4.20 0.01 4.19 907.20 5.54 0.01 5.54 907.25 7.02 0.01 7.01 907.30 8.61 0.01 8.61 907.35 10.33 0.01 10.32 907.40 12.15 0.01 12.15 907.45 14.08 0.01 14.08 907.50 16.12 0.01 16.12 907.55 18.26 0.01 18.26 907.60 20.51 0.01 20.50 907.65 22.85 0.01 22.84 907.70 25.28 0.01 25.28 907.75 27.82 0.01 27.81 907.80 30.44 0.01 30.44 907.85 33.16 0.01 33.15 907.90 35.97 0.01 35.97 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 61HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond RG 2: rain garden Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 904.00 0 0 904.05 7 0 904.10 14 1 904.15 21 2 904.20 28 3 904.25 35 4 904.30 42 6 904.35 49 9 904.40 56 11 904.45 63 14 904.50 70 18 904.55 77 21 904.60 84 25 904.65 91 30 904.70 98 34 904.75 105 39 904.80 112 45 904.85 119 51 904.90 126 57 904.95 133 63 905.00 140 70 905.05 147 77 905.10 154 85 905.15 161 93 905.20 168 101 905.25 175 109 905.30 182 118 905.35 189 128 905.40 196 137 905.45 203 147 905.50 210 158 905.55 217 168 905.60 224 179 905.65 231 191 905.70 238 202 905.75 245 214 905.80 252 227 905.85 259 240 905.90 266 253 905.95 273 266 906.00 280 280 906.05 294 294 906.10 308 309 906.15 322 325 906.20 336 342 906.25 350 359 906.30 364 377 906.35 378 395 906.40 392 414 906.45 406 434 906.50 420 455 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.55 434 476 906.60 448 498 906.65 462 521 906.70 476 545 906.75 490 569 906.80 504 594 906.85 518 619 906.90 532 645 906.95 546 672 907.00 560 700 907.05 560 700 907.10 560 700 907.15 560 700 907.20 560 700 907.25 560 700 907.30 560 700 907.35 560 700 907.40 560 700 907.45 560 700 907.50 560 700 907.55 560 700 907.60 560 700 907.65 560 700 907.70 560 700 907.75 560 700 907.80 560 700 907.85 560 700 907.90 560 700 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 62HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG1: UG Infil Basin 1 Inflow Area = 0.372 ac, 53.49% Impervious, Inflow Depth = 1.56" for 2-YR event Inflow = 0.94 cfs @ 12.12 hrs, Volume= 0.048 af Outflow = 0.12 cfs @ 12.54 hrs, Volume= 0.048 af, Atten= 87%, Lag= 25.1 min Discarded = 0.01 cfs @ 12.54 hrs, Volume= 0.039 af Primary = 0.11 cfs @ 12.54 hrs, Volume= 0.009 af Routed to Link N Pro : North Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 896.19' @ 12.54 hrs Surf.Area= 782 sf Storage= 1,155 cf Plug-Flow detention time= 615.6 min calculated for 0.048 af (100% of inflow) Center-of-Mass det. time= 615.7 min ( 1,380.5 - 764.8 ) Volume Invert Avail.Storage Storage Description #1A 893.50' 936 cf 10.75'W x 55.50'L x 4.50'H Field A Z=0.5 3,386 cf Overall - 1,046 cf Embedded = 2,340 cf x 40.0% Voids #2A 894.00' 1,046 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside 1,982 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 893.50'0.700 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 896.00'10.0" Round Culvert L= 38.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.20' S= 0.0211 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 0.55 sf Discarded OutFlow Max=0.01 cfs @ 12.54 hrs HW=896.19' (Free Discharge) 1=Exfiltration ( Controls 0.01 cfs) Primary OutFlow Max=0.11 cfs @ 12.54 hrs HW=896.19' (Free Discharge) 2=Culvert (Barrel Controls 0.11 cfs @ 1.69 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 63HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG1: UG Infil Basin 1 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +10.00' Row Adjustment +3.50' Header x 1 = 53.50' Row Length +12.0" End Stone x 2 = 55.50' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 60.00' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +10.00' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 1,046.3 cf Chamber Storage 3,386.0 cf Field - 1,046.3 cf Chambers = 2,339.7 cf Stone x 40.0% Voids = 935.9 cf Stone Storage Chamber Storage + Stone Storage = 1,982.2 cf = 0.046 af Overall Storage Efficiency = 58.5% Overall System Size = 55.50' x 10.75' x 4.50' 4 Chambers 125.4 cy Field 86.7 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 64HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG1: UG Infil Basin 1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 893.50 0.00 0.00 0.00 2.00 0.00 0 893.50 0.00 0.00 0.00 4.00 0.00 1 893.51 0.00 0.00 0.00 6.00 0.00 5 893.52 0.00 0.00 0.00 8.00 0.01 8 893.53 0.01 0.01 0.00 10.00 0.02 32 893.63 0.01 0.01 0.00 12.00 0.46 467 894.86 0.01 0.01 0.00 14.00 0.03 1,095 896.08 0.03 0.01 0.02 16.00 0.01 1,068 896.03 0.02 0.01 0.00 18.00 0.01 1,050 896.00 0.01 0.01 0.00 20.00 0.01 1,017 895.93 0.01 0.01 0.00 22.00 0.00 964 895.83 0.01 0.01 0.00 24.00 0.00 891 895.70 0.01 0.01 0.00 26.00 0.00 796 895.51 0.01 0.01 0.00 28.00 0.00 703 895.33 0.01 0.01 0.00 30.00 0.00 612 895.15 0.01 0.01 0.00 32.00 0.00 523 894.97 0.01 0.01 0.00 34.00 0.00 437 894.79 0.01 0.01 0.00 36.00 0.00 353 894.60 0.01 0.01 0.00 38.00 0.00 271 894.41 0.01 0.01 0.00 40.00 0.00 191 894.21 0.01 0.01 0.00 42.00 0.00 115 893.97 0.01 0.01 0.00 44.00 0.00 41 893.67 0.01 0.01 0.00 46.00 0.00 0 893.50 0.00 0.00 0.00 48.00 0.00 0 893.50 0.00 0.00 0.00 50.00 0.00 0 893.50 0.00 0.00 0.00 52.00 0.00 0 893.50 0.00 0.00 0.00 54.00 0.00 0 893.50 0.00 0.00 0.00 56.00 0.00 0 893.50 0.00 0.00 0.00 58.00 0.00 0 893.50 0.00 0.00 0.00 60.00 0.00 0 893.50 0.00 0.00 0.00 62.00 0.00 0 893.50 0.00 0.00 0.00 64.00 0.00 0 893.50 0.00 0.00 0.00 66.00 0.00 0 893.50 0.00 0.00 0.00 68.00 0.00 0 893.50 0.00 0.00 0.00 70.00 0.00 0 893.50 0.00 0.00 0.00 72.00 0.00 0 893.50 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 65HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG1: UG Infil Basin 1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 893.50 0.00 0.00 0.00 893.55 0.01 0.01 0.00 893.60 0.01 0.01 0.00 893.65 0.01 0.01 0.00 893.70 0.01 0.01 0.00 893.75 0.01 0.01 0.00 893.80 0.01 0.01 0.00 893.85 0.01 0.01 0.00 893.90 0.01 0.01 0.00 893.95 0.01 0.01 0.00 894.00 0.01 0.01 0.00 894.05 0.01 0.01 0.00 894.10 0.01 0.01 0.00 894.15 0.01 0.01 0.00 894.20 0.01 0.01 0.00 894.25 0.01 0.01 0.00 894.30 0.01 0.01 0.00 894.35 0.01 0.01 0.00 894.40 0.01 0.01 0.00 894.45 0.01 0.01 0.00 894.50 0.01 0.01 0.00 894.55 0.01 0.01 0.00 894.60 0.01 0.01 0.00 894.65 0.01 0.01 0.00 894.70 0.01 0.01 0.00 894.75 0.01 0.01 0.00 894.80 0.01 0.01 0.00 894.85 0.01 0.01 0.00 894.90 0.01 0.01 0.00 894.95 0.01 0.01 0.00 895.00 0.01 0.01 0.00 895.05 0.01 0.01 0.00 895.10 0.01 0.01 0.00 895.15 0.01 0.01 0.00 895.20 0.01 0.01 0.00 895.25 0.01 0.01 0.00 895.30 0.01 0.01 0.00 895.35 0.01 0.01 0.00 895.40 0.01 0.01 0.00 895.45 0.01 0.01 0.00 895.50 0.01 0.01 0.00 895.55 0.01 0.01 0.00 895.60 0.01 0.01 0.00 895.65 0.01 0.01 0.00 895.70 0.01 0.01 0.00 895.75 0.01 0.01 0.00 895.80 0.01 0.01 0.00 895.85 0.01 0.01 0.00 895.90 0.01 0.01 0.00 895.95 0.01 0.01 0.00 896.00 0.01 0.01 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 896.05 0.02 0.01 0.01 896.10 0.04 0.01 0.03 896.15 0.08 0.01 0.06 896.20 0.13 0.01 0.12 896.25 0.19 0.01 0.18 896.30 0.27 0.01 0.26 896.35 0.36 0.01 0.35 896.40 0.46 0.01 0.44 896.45 0.57 0.01 0.55 896.50 0.68 0.01 0.66 896.55 0.80 0.02 0.78 896.60 0.92 0.02 0.90 896.65 1.04 0.02 1.03 896.70 1.16 0.02 1.15 896.75 1.28 0.02 1.27 896.80 1.40 0.02 1.38 896.85 1.51 0.02 1.49 896.90 1.61 0.02 1.59 896.95 1.69 0.02 1.68 897.00 1.76 0.02 1.74 897.05 1.79 0.02 1.78 897.10 1.77 0.02 1.75 897.15 1.75 0.02 1.73 897.20 1.79 0.02 1.77 897.25 1.82 0.02 1.81 897.30 1.86 0.02 1.85 897.35 1.90 0.02 1.88 897.40 1.93 0.02 1.92 897.45 1.97 0.02 1.95 897.50 2.00 0.02 1.99 897.55 2.04 0.02 2.02 897.60 2.07 0.02 2.05 897.65 2.10 0.02 2.08 897.70 2.13 0.02 2.12 897.75 2.17 0.02 2.15 897.80 2.20 0.02 2.18 897.85 2.23 0.02 2.21 897.90 2.26 0.02 2.24 897.95 2.29 0.02 2.27 898.00 2.32 0.02 2.30 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 66HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG1: UG Infil Basin 1 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 893.50 597 0 893.55 600 12 893.60 603 24 893.65 607 36 893.70 610 48 893.75 613 60 893.80 617 73 893.85 620 85 893.90 623 98 893.95 627 110 894.00 630 123 894.05 633 137 894.10 637 153 894.15 640 170 894.20 643 188 894.25 647 206 894.30 650 226 894.35 654 245 894.40 657 265 894.45 660 286 894.50 664 307 894.55 667 329 894.60 671 350 894.65 674 373 894.70 678 395 894.75 681 418 894.80 684 441 894.85 688 464 894.90 691 488 894.95 695 512 895.00 698 536 895.05 702 561 895.10 705 585 895.15 709 610 895.20 712 635 895.25 716 660 895.30 719 686 895.35 723 711 895.40 726 737 895.45 730 762 895.50 733 788 895.55 737 814 895.60 740 841 895.65 744 867 895.70 747 893 895.75 751 919 895.80 754 946 895.85 758 972 895.90 761 999 895.95 765 1,026 896.00 769 1,052 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.05 772 1,079 896.10 776 1,106 896.15 779 1,132 896.20 783 1,159 896.25 786 1,186 896.30 790 1,212 896.35 794 1,239 896.40 797 1,266 896.45 801 1,292 896.50 804 1,319 896.55 808 1,345 896.60 812 1,371 896.65 815 1,397 896.70 819 1,423 896.75 823 1,449 896.80 826 1,475 896.85 830 1,501 896.90 833 1,526 896.95 837 1,551 897.00 841 1,576 897.05 844 1,601 897.10 848 1,625 897.15 852 1,649 897.20 855 1,673 897.25 859 1,696 897.30 863 1,719 897.35 867 1,741 897.40 870 1,763 897.45 874 1,784 897.50 878 1,803 897.55 881 1,821 897.60 885 1,838 897.65 889 1,856 897.70 893 1,874 897.75 896 1,892 897.80 900 1,910 897.85 904 1,928 897.90 907 1,946 897.95 911 1,964 898.00 915 1,982 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 67HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG3: UG Infil Basin 3 Inflow Area = 0.519 ac, 33.14% Impervious, Inflow Depth = 1.09" for 2-YR event Inflow = 0.89 cfs @ 12.13 hrs, Volume= 0.047 af Outflow = 0.02 cfs @ 15.85 hrs, Volume= 0.047 af, Atten= 98%, Lag= 223.7 min Discarded = 0.02 cfs @ 15.85 hrs, Volume= 0.047 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 882.86' @ 15.85 hrs Surf.Area= 728 sf Storage= 1,450 cf Plug-Flow detention time= 1,097.5 min calculated for 0.047 af (100% of inflow) Center-of-Mass det. time= 1,097.5 min ( 1,875.1 - 777.6 ) Volume Invert Avail.Storage Storage Description #1A 879.00' 787 cf 10.75'W x 46.00'L x 4.50'H Field A Z=0.5 2,830 cf Overall - 863 cf Embedded = 1,967 cf x 40.0% Voids #2A 879.50' 863 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside #3 883.50' 36 cf Custom Stage Data (Prismatic) Listed below (Recalc) 1,686 cf Total Available Storage Storage Group A created with Chamber Wizard Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.50 20 0 0 884.30 70 36 36 Device Routing Invert Outlet Devices #1 Discarded 879.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 883.54'24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.02 cfs @ 15.85 hrs HW=882.86' (Free Discharge) 1=Exfiltration ( Controls 0.02 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=879.00' (Free Discharge) 2=Orifice/Grate ( Controls 0.00 cfs) Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 68HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG3: UG Infil Basin 3 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +0.50' Row Adjustment +3.50' Header x 1 = 44.00' Row Length +12.0" End Stone x 2 = 46.00' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 50.50' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +0.50' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 863.5 cf Chamber Storage 2,830.2 cf Field - 863.5 cf Chambers = 1,966.7 cf Stone x 40.0% Voids = 786.7 cf Stone Storage Chamber Storage + Stone Storage = 1,650.2 cf = 0.038 af Overall Storage Efficiency = 58.3% Overall System Size = 46.00' x 10.75' x 4.50' 4 Chambers 104.8 cy Field 72.8 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 69HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG3: UG Infil Basin 3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 879.00 0.00 0.00 0.00 2.00 0.00 0 879.00 0.00 0.00 0.00 4.00 0.00 1 879.01 0.00 0.00 0.00 6.00 0.00 6 879.03 0.00 0.00 0.00 8.00 0.01 12 879.06 0.01 0.01 0.00 10.00 0.02 49 879.25 0.01 0.01 0.00 12.00 0.40 443 880.50 0.01 0.01 0.00 14.00 0.03 1,400 882.72 0.01 0.01 0.00 16.00 0.02 1,450 882.86 0.02 0.02 0.00 18.00 0.01 1,438 882.82 0.02 0.02 0.00 20.00 0.01 1,405 882.74 0.01 0.01 0.00 22.00 0.01 1,351 882.60 0.01 0.01 0.00 24.00 0.00 1,277 882.42 0.01 0.01 0.00 26.00 0.00 1,179 882.19 0.01 0.01 0.00 28.00 0.00 1,085 881.98 0.01 0.01 0.00 30.00 0.00 995 881.77 0.01 0.01 0.00 32.00 0.00 909 881.58 0.01 0.01 0.00 34.00 0.00 826 881.39 0.01 0.01 0.00 36.00 0.00 747 881.21 0.01 0.01 0.00 38.00 0.00 672 881.04 0.01 0.01 0.00 40.00 0.00 600 880.87 0.01 0.01 0.00 42.00 0.00 531 880.71 0.01 0.01 0.00 44.00 0.00 465 880.55 0.01 0.01 0.00 46.00 0.00 402 880.39 0.01 0.01 0.00 48.00 0.00 342 880.24 0.01 0.01 0.00 50.00 0.00 284 880.08 0.01 0.01 0.00 52.00 0.00 230 879.93 0.01 0.01 0.00 54.00 0.00 178 879.77 0.01 0.01 0.00 56.00 0.00 129 879.61 0.01 0.01 0.00 58.00 0.00 84 879.41 0.01 0.01 0.00 60.00 0.00 41 879.21 0.01 0.01 0.00 62.00 0.00 5 879.02 0.00 0.00 0.00 64.00 0.00 0 879.00 0.00 0.00 0.00 66.00 0.00 0 879.00 0.00 0.00 0.00 68.00 0.00 0 879.00 0.00 0.00 0.00 70.00 0.00 0 879.00 0.00 0.00 0.00 72.00 0.00 0 879.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 70HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG3: UG Infil Basin 3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 879.00 0.00 0.00 0.00 879.10 0.01 0.01 0.00 879.20 0.01 0.01 0.00 879.30 0.01 0.01 0.00 879.40 0.01 0.01 0.00 879.50 0.01 0.01 0.00 879.60 0.01 0.01 0.00 879.70 0.01 0.01 0.00 879.80 0.01 0.01 0.00 879.90 0.01 0.01 0.00 880.00 0.01 0.01 0.00 880.10 0.01 0.01 0.00 880.20 0.01 0.01 0.00 880.30 0.01 0.01 0.00 880.40 0.01 0.01 0.00 880.50 0.01 0.01 0.00 880.60 0.01 0.01 0.00 880.70 0.01 0.01 0.00 880.80 0.01 0.01 0.00 880.90 0.01 0.01 0.00 881.00 0.01 0.01 0.00 881.10 0.01 0.01 0.00 881.20 0.01 0.01 0.00 881.30 0.01 0.01 0.00 881.40 0.01 0.01 0.00 881.50 0.01 0.01 0.00 881.60 0.01 0.01 0.00 881.70 0.01 0.01 0.00 881.80 0.01 0.01 0.00 881.90 0.01 0.01 0.00 882.00 0.01 0.01 0.00 882.10 0.01 0.01 0.00 882.20 0.01 0.01 0.00 882.30 0.01 0.01 0.00 882.40 0.01 0.01 0.00 882.50 0.01 0.01 0.00 882.60 0.01 0.01 0.00 882.70 0.01 0.01 0.00 882.80 0.02 0.02 0.00 882.90 0.02 0.02 0.00 883.00 0.02 0.02 0.00 883.10 0.02 0.02 0.00 883.20 0.02 0.02 0.00 883.30 0.02 0.02 0.00 883.40 0.02 0.02 0.00 883.50 0.02 0.02 0.00 883.60 0.32 0.02 0.30 883.70 1.33 0.02 1.31 883.80 2.74 0.02 2.72 883.90 4.46 0.02 4.44 884.00 6.43 0.02 6.41 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 884.10 8.63 0.02 8.61 884.20 11.04 0.02 11.02 884.30 13.21 0.02 13.19 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 71HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG3: UG Infil Basin 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 879.00 495 0 879.10 500 20 879.20 506 40 879.30 512 60 879.40 517 81 879.50 523 102 879.60 529 127 879.70 535 156 879.80 541 187 879.90 546 220 880.00 552 255 880.10 558 291 880.20 564 328 880.30 570 366 880.40 576 405 880.50 582 445 880.60 588 486 880.70 594 527 880.80 600 569 880.90 606 611 881.00 612 654 881.10 618 697 881.20 624 741 881.30 630 785 881.40 636 829 881.50 643 874 881.60 649 918 881.70 655 962 881.80 661 1,007 881.90 667 1,051 882.00 674 1,095 882.10 680 1,139 882.20 686 1,182 882.30 693 1,225 882.40 699 1,268 882.50 705 1,310 882.60 712 1,351 882.70 718 1,391 882.80 725 1,429 882.90 731 1,466 883.00 738 1,499 883.10 744 1,529 883.20 750 1,559 883.30 757 1,589 883.40 764 1,620 883.50 790 1,650 883.60 796 1,652 883.70 803 1,655 883.80 809 1,659 883.90 815 1,663 884.00 821 1,668 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.10 828 1,673 884.20 834 1,679 884.30 840 1,686 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 72HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Ex: North Existing Inflow Area = 0.841 ac, 7.02% Impervious, Inflow Depth = 0.48" for 2-YR event Inflow = 0.57 cfs @ 12.14 hrs, Volume= 0.034 af Primary = 0.57 cfs @ 12.14 hrs, Volume= 0.034 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 73HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Ex: North Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.01 0.00 0.01 11.00 0.01 0.00 0.01 12.00 0.14 0.00 0.14 13.00 0.07 0.00 0.07 14.00 0.03 0.00 0.03 15.00 0.03 0.00 0.03 16.00 0.02 0.00 0.02 17.00 0.01 0.00 0.01 18.00 0.01 0.00 0.01 19.00 0.01 0.00 0.01 20.00 0.01 0.00 0.01 21.00 0.01 0.00 0.01 22.00 0.01 0.00 0.01 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 74HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Pro: North Proposed Inflow Area = 0.902 ac, 22.06% Impervious, Inflow Depth = 0.31" for 2-YR event Inflow = 0.22 cfs @ 12.14 hrs, Volume= 0.023 af Primary = 0.22 cfs @ 12.14 hrs, Volume= 0.023 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 75HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Pro: North Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.10 0.00 0.10 14.00 0.03 0.00 0.03 15.00 0.03 0.00 0.03 16.00 0.01 0.00 0.01 17.00 0.01 0.00 0.01 18.00 0.01 0.00 0.01 19.00 0.01 0.00 0.01 20.00 0.01 0.00 0.01 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 76HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Ex: South Existing Inflow Area = 0.730 ac, 24.38% Impervious, Inflow Depth = 0.88" for 2-YR event Inflow = 1.00 cfs @ 12.13 hrs, Volume= 0.054 af Primary = 1.00 cfs @ 12.13 hrs, Volume= 0.054 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 77HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Ex: South Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.01 0.00 0.01 8.00 0.01 0.00 0.01 9.00 0.01 0.00 0.01 10.00 0.02 0.00 0.02 11.00 0.04 0.00 0.04 12.00 0.41 0.00 0.41 13.00 0.09 0.00 0.09 14.00 0.04 0.00 0.04 15.00 0.03 0.00 0.03 16.00 0.02 0.00 0.02 17.00 0.02 0.00 0.02 18.00 0.02 0.00 0.02 19.00 0.01 0.00 0.01 20.00 0.01 0.00 0.01 21.00 0.01 0.00 0.01 22.00 0.01 0.00 0.01 23.00 0.01 0.00 0.01 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 78HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Pro: South Proposed Inflow Area = 0.680 ac, 32.94% Impervious, Inflow Depth = 0.03" for 2-YR event Inflow = 0.03 cfs @ 12.14 hrs, Volume= 0.002 af Primary = 0.03 cfs @ 12.14 hrs, Volume= 0.002 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 2-YR Rainfall=2.87"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 79HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Pro: South Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.00 0.00 0.00 13.00 0.01 0.00 0.01 14.00 0.00 0.00 0.00 15.00 0.00 0.00 0.00 16.00 0.00 0.00 0.00 17.00 0.00 0.00 0.00 18.00 0.00 0.00 0.00 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 80HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=0.372 ac 53.49% Impervious Runoff Depth=2.61"Subcatchment NA: North A Proposed Tc=5.0 min CN=61/98 Runoff=1.62 cfs 0.081 af Runoff Area=0.841 ac 7.02% Impervious Runoff Depth=1.18"Subcatchment NA Ex: North Exist Tc=5.0 min CN=61/98 Runoff=1.77 cfs 0.082 af Runoff Area=0.530 ac 0.00% Impervious Runoff Depth=0.96"Subcatchment NB: North B Proposed Tc=5.0 min CN=61/0 Runoff=0.94 cfs 0.042 af Runoff Area=0.087 ac 59.77% Impervious Runoff Depth=2.80"Subcatchment SA: South A Proposed Tc=5.0 min CN=61/98 Runoff=0.40 cfs 0.020 af Runoff Area=0.730 ac 24.38% Impervious Runoff Depth=1.71"Subcatchment SA Ex: South Exist Tc=5.0 min CN=61/98 Runoff=2.15 cfs 0.104 af Runoff Area=0.055 ac 0.00% Impervious Runoff Depth=0.96"Subcatchment SB: South B Proposed Tc=5.0 min CN=61/0 Runoff=0.10 cfs 0.004 af Runoff Area=0.519 ac 33.14% Impervious Runoff Depth=1.98"Subcatchment SC: South C Proposed Tc=5.0 min CN=61/98 Runoff=1.75 cfs 0.086 af Runoff Area=0.019 ac 0.00% Impervious Runoff Depth=0.96"Subcatchment SD: South D Proposed Tc=5.0 min CN=61/0 Runoff=0.03 cfs 0.002 af Peak Elev=906.90' Storage=647 cf Inflow=0.40 cfs 0.020 afPond RG 2: rain garden Discarded=0.01 cfs 0.018 af Primary=0.01 cfs 0.001 af Outflow=0.02 cfs 0.019 af Peak Elev=896.64' Storage=1,393 cf Inflow=1.62 cfs 0.081 afPond UG1: UG Infil Basin 1 Discarded=0.02 cfs 0.043 af Primary=1.01 cfs 0.038 af Outflow=1.02 cfs 0.081 af Peak Elev=883.65' Storage=1,654 cf Inflow=1.75 cfs 0.086 afPond UG3: UG Infil Basin 3 Discarded=0.02 cfs 0.057 af Primary=0.74 cfs 0.028 af Outflow=0.76 cfs 0.085 af Inflow=1.77 cfs 0.082 afLink N Ex: North Existing Primary=1.77 cfs 0.082 af Inflow=1.77 cfs 0.081 afLink N Pro: North Proposed Primary=1.77 cfs 0.081 af Inflow=2.15 cfs 0.104 afLink S Ex: South Existing Primary=2.15 cfs 0.104 af Inflow=0.81 cfs 0.035 afLink S Pro: South Proposed Primary=0.81 cfs 0.035 af Total Runoff Area = 3.153 ac Runoff Volume = 0.422 af Average Runoff Depth = 1.60" 79.07% Pervious = 2.493 ac 20.93% Impervious = 0.660 ac Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 81HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA: North A Proposed Runoff = 1.62 cfs @ 12.12 hrs, Volume= 0.081 af, Depth= 2.61" Routed to Pond UG1 : UG Infil Basin 1 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.199 98 IMPERVIOUS 0.173 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.372 81 Weighted Average 0.173 61 46.51% Pervious Area 0.199 98 53.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 82HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA: North A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.02 0.00 6.00 0.22 0.00 0.08 0.01 8.00 0.36 0.00 0.19 0.01 10.00 0.59 0.00 0.40 0.03 12.00 1.98 0.07 1.76 0.76 14.00 3.69 0.66 3.46 0.04 16.00 3.92 0.77 3.69 0.02 18.00 4.06 0.84 3.83 0.02 20.00 4.17 0.90 3.93 0.01 22.00 4.24 0.94 4.01 0.01 24.00 4.28 0.96 4.04 0.00 26.00 4.28 0.96 4.04 0.00 28.00 4.28 0.96 4.04 0.00 30.00 4.28 0.96 4.04 0.00 32.00 4.28 0.96 4.04 0.00 34.00 4.28 0.96 4.04 0.00 36.00 4.28 0.96 4.04 0.00 38.00 4.28 0.96 4.04 0.00 40.00 4.28 0.96 4.04 0.00 42.00 4.28 0.96 4.04 0.00 44.00 4.28 0.96 4.04 0.00 46.00 4.28 0.96 4.04 0.00 48.00 4.28 0.96 4.04 0.00 50.00 4.28 0.96 4.04 0.00 52.00 4.28 0.96 4.04 0.00 54.00 4.28 0.96 4.04 0.00 56.00 4.28 0.96 4.04 0.00 58.00 4.28 0.96 4.04 0.00 60.00 4.28 0.96 4.04 0.00 62.00 4.28 0.96 4.04 0.00 64.00 4.28 0.96 4.04 0.00 66.00 4.28 0.96 4.04 0.00 68.00 4.28 0.96 4.04 0.00 70.00 4.28 0.96 4.04 0.00 72.00 4.28 0.96 4.04 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 83HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA Ex: North Exist Runoff = 1.77 cfs @ 12.13 hrs, Volume= 0.082 af, Depth= 1.18" Routed to Link N Ex : North Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.059 98 IMPERVIOUS 0.782 61 >75% Grass cover, Good, HSG B 0.841 64 Weighted Average 0.782 61 92.98% Pervious Area 0.059 98 7.02% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 84HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA Ex: North Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.02 0.00 6.00 0.22 0.00 0.08 0.00 8.00 0.36 0.00 0.19 0.00 10.00 0.59 0.00 0.40 0.01 12.00 1.98 0.07 1.76 0.54 14.00 3.69 0.66 3.46 0.07 16.00 3.92 0.77 3.69 0.04 18.00 4.06 0.84 3.83 0.03 20.00 4.17 0.90 3.93 0.02 22.00 4.24 0.94 4.01 0.01 24.00 4.28 0.96 4.04 0.01 26.00 4.28 0.96 4.04 0.00 28.00 4.28 0.96 4.04 0.00 30.00 4.28 0.96 4.04 0.00 32.00 4.28 0.96 4.04 0.00 34.00 4.28 0.96 4.04 0.00 36.00 4.28 0.96 4.04 0.00 38.00 4.28 0.96 4.04 0.00 40.00 4.28 0.96 4.04 0.00 42.00 4.28 0.96 4.04 0.00 44.00 4.28 0.96 4.04 0.00 46.00 4.28 0.96 4.04 0.00 48.00 4.28 0.96 4.04 0.00 50.00 4.28 0.96 4.04 0.00 52.00 4.28 0.96 4.04 0.00 54.00 4.28 0.96 4.04 0.00 56.00 4.28 0.96 4.04 0.00 58.00 4.28 0.96 4.04 0.00 60.00 4.28 0.96 4.04 0.00 62.00 4.28 0.96 4.04 0.00 64.00 4.28 0.96 4.04 0.00 66.00 4.28 0.96 4.04 0.00 68.00 4.28 0.96 4.04 0.00 70.00 4.28 0.96 4.04 0.00 72.00 4.28 0.96 4.04 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 85HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NB: North B Proposed Runoff = 0.94 cfs @ 12.13 hrs, Volume= 0.042 af, Depth= 0.96" Routed to Link N Pro : North Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.530 61 >75% Grass cover, Good, HSG B 0.530 61 Weighted Average 0.530 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 86HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NB: North B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.00 0.00 6.00 0.22 0.00 0.00 0.00 8.00 0.36 0.00 0.00 0.00 10.00 0.59 0.00 0.00 0.00 12.00 1.98 0.07 0.00 0.23 14.00 3.69 0.66 0.00 0.04 16.00 3.92 0.77 0.00 0.02 18.00 4.06 0.84 0.00 0.02 20.00 4.17 0.90 0.00 0.01 22.00 4.24 0.94 0.00 0.01 24.00 4.28 0.96 0.00 0.00 26.00 4.28 0.96 0.00 0.00 28.00 4.28 0.96 0.00 0.00 30.00 4.28 0.96 0.00 0.00 32.00 4.28 0.96 0.00 0.00 34.00 4.28 0.96 0.00 0.00 36.00 4.28 0.96 0.00 0.00 38.00 4.28 0.96 0.00 0.00 40.00 4.28 0.96 0.00 0.00 42.00 4.28 0.96 0.00 0.00 44.00 4.28 0.96 0.00 0.00 46.00 4.28 0.96 0.00 0.00 48.00 4.28 0.96 0.00 0.00 50.00 4.28 0.96 0.00 0.00 52.00 4.28 0.96 0.00 0.00 54.00 4.28 0.96 0.00 0.00 56.00 4.28 0.96 0.00 0.00 58.00 4.28 0.96 0.00 0.00 60.00 4.28 0.96 0.00 0.00 62.00 4.28 0.96 0.00 0.00 64.00 4.28 0.96 0.00 0.00 66.00 4.28 0.96 0.00 0.00 68.00 4.28 0.96 0.00 0.00 70.00 4.28 0.96 0.00 0.00 72.00 4.28 0.96 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 87HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA: South A Proposed Runoff = 0.40 cfs @ 12.12 hrs, Volume= 0.020 af, Depth= 2.80" Routed to Pond RG 2 : rain garden Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.052 98 IMPERVIOUS 0.035 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.087 83 Weighted Average 0.035 61 40.23% Pervious Area 0.052 98 59.77% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 88HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA: South A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.02 0.00 6.00 0.22 0.00 0.08 0.00 8.00 0.36 0.00 0.19 0.00 10.00 0.59 0.00 0.40 0.01 12.00 1.98 0.07 1.76 0.20 14.00 3.69 0.66 3.46 0.01 16.00 3.92 0.77 3.69 0.01 18.00 4.06 0.84 3.83 0.00 20.00 4.17 0.90 3.93 0.00 22.00 4.24 0.94 4.01 0.00 24.00 4.28 0.96 4.04 0.00 26.00 4.28 0.96 4.04 0.00 28.00 4.28 0.96 4.04 0.00 30.00 4.28 0.96 4.04 0.00 32.00 4.28 0.96 4.04 0.00 34.00 4.28 0.96 4.04 0.00 36.00 4.28 0.96 4.04 0.00 38.00 4.28 0.96 4.04 0.00 40.00 4.28 0.96 4.04 0.00 42.00 4.28 0.96 4.04 0.00 44.00 4.28 0.96 4.04 0.00 46.00 4.28 0.96 4.04 0.00 48.00 4.28 0.96 4.04 0.00 50.00 4.28 0.96 4.04 0.00 52.00 4.28 0.96 4.04 0.00 54.00 4.28 0.96 4.04 0.00 56.00 4.28 0.96 4.04 0.00 58.00 4.28 0.96 4.04 0.00 60.00 4.28 0.96 4.04 0.00 62.00 4.28 0.96 4.04 0.00 64.00 4.28 0.96 4.04 0.00 66.00 4.28 0.96 4.04 0.00 68.00 4.28 0.96 4.04 0.00 70.00 4.28 0.96 4.04 0.00 72.00 4.28 0.96 4.04 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 89HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA Ex: South Exist Runoff = 2.15 cfs @ 12.13 hrs, Volume= 0.104 af, Depth= 1.71" Routed to Link S Ex : South Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.178 98 IMPERVIOUS 0.552 61 >75% Grass cover, Good, HSG B 0.730 70 Weighted Average 0.552 61 75.62% Pervious Area 0.178 98 24.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 90HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA Ex: South Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.02 0.00 6.00 0.22 0.00 0.08 0.01 8.00 0.36 0.00 0.19 0.01 10.00 0.59 0.00 0.40 0.03 12.00 1.98 0.07 1.76 0.86 14.00 3.69 0.66 3.46 0.07 16.00 3.92 0.77 3.69 0.04 18.00 4.06 0.84 3.83 0.03 20.00 4.17 0.90 3.93 0.02 22.00 4.24 0.94 4.01 0.01 24.00 4.28 0.96 4.04 0.01 26.00 4.28 0.96 4.04 0.00 28.00 4.28 0.96 4.04 0.00 30.00 4.28 0.96 4.04 0.00 32.00 4.28 0.96 4.04 0.00 34.00 4.28 0.96 4.04 0.00 36.00 4.28 0.96 4.04 0.00 38.00 4.28 0.96 4.04 0.00 40.00 4.28 0.96 4.04 0.00 42.00 4.28 0.96 4.04 0.00 44.00 4.28 0.96 4.04 0.00 46.00 4.28 0.96 4.04 0.00 48.00 4.28 0.96 4.04 0.00 50.00 4.28 0.96 4.04 0.00 52.00 4.28 0.96 4.04 0.00 54.00 4.28 0.96 4.04 0.00 56.00 4.28 0.96 4.04 0.00 58.00 4.28 0.96 4.04 0.00 60.00 4.28 0.96 4.04 0.00 62.00 4.28 0.96 4.04 0.00 64.00 4.28 0.96 4.04 0.00 66.00 4.28 0.96 4.04 0.00 68.00 4.28 0.96 4.04 0.00 70.00 4.28 0.96 4.04 0.00 72.00 4.28 0.96 4.04 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 91HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SB: South B Proposed Runoff = 0.10 cfs @ 12.13 hrs, Volume= 0.004 af, Depth= 0.96" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.055 61 >75% Grass cover, Good, HSG B 0.055 61 Weighted Average 0.055 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 92HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SB: South B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.00 0.00 6.00 0.22 0.00 0.00 0.00 8.00 0.36 0.00 0.00 0.00 10.00 0.59 0.00 0.00 0.00 12.00 1.98 0.07 0.00 0.02 14.00 3.69 0.66 0.00 0.00 16.00 3.92 0.77 0.00 0.00 18.00 4.06 0.84 0.00 0.00 20.00 4.17 0.90 0.00 0.00 22.00 4.24 0.94 0.00 0.00 24.00 4.28 0.96 0.00 0.00 26.00 4.28 0.96 0.00 0.00 28.00 4.28 0.96 0.00 0.00 30.00 4.28 0.96 0.00 0.00 32.00 4.28 0.96 0.00 0.00 34.00 4.28 0.96 0.00 0.00 36.00 4.28 0.96 0.00 0.00 38.00 4.28 0.96 0.00 0.00 40.00 4.28 0.96 0.00 0.00 42.00 4.28 0.96 0.00 0.00 44.00 4.28 0.96 0.00 0.00 46.00 4.28 0.96 0.00 0.00 48.00 4.28 0.96 0.00 0.00 50.00 4.28 0.96 0.00 0.00 52.00 4.28 0.96 0.00 0.00 54.00 4.28 0.96 0.00 0.00 56.00 4.28 0.96 0.00 0.00 58.00 4.28 0.96 0.00 0.00 60.00 4.28 0.96 0.00 0.00 62.00 4.28 0.96 0.00 0.00 64.00 4.28 0.96 0.00 0.00 66.00 4.28 0.96 0.00 0.00 68.00 4.28 0.96 0.00 0.00 70.00 4.28 0.96 0.00 0.00 72.00 4.28 0.96 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 93HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SC: South C Proposed Runoff = 1.75 cfs @ 12.13 hrs, Volume= 0.086 af, Depth= 1.98" Routed to Pond UG3 : UG Infil Basin 3 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.172 98 IMPERVIOUS 0.347 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.519 73 Weighted Average 0.347 61 66.86% Pervious Area 0.172 98 33.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 94HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SC: South C Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.02 0.00 6.00 0.22 0.00 0.08 0.01 8.00 0.36 0.00 0.19 0.01 10.00 0.59 0.00 0.40 0.02 12.00 1.98 0.07 1.76 0.75 14.00 3.69 0.66 3.46 0.05 16.00 3.92 0.77 3.69 0.03 18.00 4.06 0.84 3.83 0.02 20.00 4.17 0.90 3.93 0.02 22.00 4.24 0.94 4.01 0.01 24.00 4.28 0.96 4.04 0.00 26.00 4.28 0.96 4.04 0.00 28.00 4.28 0.96 4.04 0.00 30.00 4.28 0.96 4.04 0.00 32.00 4.28 0.96 4.04 0.00 34.00 4.28 0.96 4.04 0.00 36.00 4.28 0.96 4.04 0.00 38.00 4.28 0.96 4.04 0.00 40.00 4.28 0.96 4.04 0.00 42.00 4.28 0.96 4.04 0.00 44.00 4.28 0.96 4.04 0.00 46.00 4.28 0.96 4.04 0.00 48.00 4.28 0.96 4.04 0.00 50.00 4.28 0.96 4.04 0.00 52.00 4.28 0.96 4.04 0.00 54.00 4.28 0.96 4.04 0.00 56.00 4.28 0.96 4.04 0.00 58.00 4.28 0.96 4.04 0.00 60.00 4.28 0.96 4.04 0.00 62.00 4.28 0.96 4.04 0.00 64.00 4.28 0.96 4.04 0.00 66.00 4.28 0.96 4.04 0.00 68.00 4.28 0.96 4.04 0.00 70.00 4.28 0.96 4.04 0.00 72.00 4.28 0.96 4.04 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 95HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SD: South D Proposed Runoff = 0.03 cfs @ 12.13 hrs, Volume= 0.002 af, Depth= 0.96" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 10-YR Rainfall=4.28" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.019 61 >75% Grass cover, Good, HSG B 0.019 61 Weighted Average 0.019 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 96HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SD: South D Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.04 0.00 0.00 0.00 4.00 0.11 0.00 0.00 0.00 6.00 0.22 0.00 0.00 0.00 8.00 0.36 0.00 0.00 0.00 10.00 0.59 0.00 0.00 0.00 12.00 1.98 0.07 0.00 0.01 14.00 3.69 0.66 0.00 0.00 16.00 3.92 0.77 0.00 0.00 18.00 4.06 0.84 0.00 0.00 20.00 4.17 0.90 0.00 0.00 22.00 4.24 0.94 0.00 0.00 24.00 4.28 0.96 0.00 0.00 26.00 4.28 0.96 0.00 0.00 28.00 4.28 0.96 0.00 0.00 30.00 4.28 0.96 0.00 0.00 32.00 4.28 0.96 0.00 0.00 34.00 4.28 0.96 0.00 0.00 36.00 4.28 0.96 0.00 0.00 38.00 4.28 0.96 0.00 0.00 40.00 4.28 0.96 0.00 0.00 42.00 4.28 0.96 0.00 0.00 44.00 4.28 0.96 0.00 0.00 46.00 4.28 0.96 0.00 0.00 48.00 4.28 0.96 0.00 0.00 50.00 4.28 0.96 0.00 0.00 52.00 4.28 0.96 0.00 0.00 54.00 4.28 0.96 0.00 0.00 56.00 4.28 0.96 0.00 0.00 58.00 4.28 0.96 0.00 0.00 60.00 4.28 0.96 0.00 0.00 62.00 4.28 0.96 0.00 0.00 64.00 4.28 0.96 0.00 0.00 66.00 4.28 0.96 0.00 0.00 68.00 4.28 0.96 0.00 0.00 70.00 4.28 0.96 0.00 0.00 72.00 4.28 0.96 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 97HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond RG 2: rain garden Inflow Area = 0.087 ac, 59.77% Impervious, Inflow Depth = 2.80" for 10-YR event Inflow = 0.40 cfs @ 12.12 hrs, Volume= 0.020 af Outflow = 0.02 cfs @ 13.43 hrs, Volume= 0.019 af, Atten= 95%, Lag= 78.4 min Discarded = 0.01 cfs @ 13.43 hrs, Volume= 0.018 af Primary = 0.01 cfs @ 13.43 hrs, Volume= 0.001 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 906.90' @ 13.43 hrs Surf.Area= 533 sf Storage= 647 cf Plug-Flow detention time= 1,254.5 min calculated for 0.019 af (93% of inflow) Center-of-Mass det. time= 1,222.4 min ( 1,982.3 - 759.9 ) Volume Invert Avail.Storage Storage Description #1 904.00' 700 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 0 0 0 906.00 280 280 280 907.00 560 420 700 Device Routing Invert Outlet Devices #1 Discarded 904.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 906.90'10.0' long x 1.00' rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0' Crest Height Discarded OutFlow Max=0.01 cfs @ 13.43 hrs HW=906.90' (Free Discharge) 1=Exfiltration ( Controls 0.01 cfs) Primary OutFlow Max=0.00 cfs @ 13.43 hrs HW=906.90' (Free Discharge) 2=Sharp-Crested Rectangular Weir (Weir Controls 0.00 cfs @ 0.17 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 98HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond RG 2: rain garden Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 904.00 0.00 0.00 0.00 2.00 0.00 0 904.00 0.00 0.00 0.00 4.00 0.00 2 904.18 0.00 0.00 0.00 6.00 0.00 11 904.40 0.00 0.00 0.00 8.00 0.00 26 904.61 0.00 0.00 0.00 10.00 0.01 56 904.90 0.00 0.00 0.00 12.00 0.20 252 905.90 0.00 0.00 0.00 14.00 0.01 646 906.90 0.01 0.01 0.01 16.00 0.01 645 906.90 0.01 0.01 0.00 18.00 0.00 640 906.89 0.01 0.01 0.00 20.00 0.00 626 906.86 0.01 0.01 0.00 22.00 0.00 605 906.82 0.01 0.01 0.00 24.00 0.00 576 906.76 0.01 0.01 0.00 26.00 0.00 538 906.69 0.01 0.01 0.00 28.00 0.00 502 906.61 0.00 0.00 0.00 30.00 0.00 468 906.53 0.00 0.00 0.00 32.00 0.00 436 906.45 0.00 0.00 0.00 34.00 0.00 405 906.38 0.00 0.00 0.00 36.00 0.00 376 906.30 0.00 0.00 0.00 38.00 0.00 348 906.22 0.00 0.00 0.00 40.00 0.00 323 906.14 0.00 0.00 0.00 42.00 0.00 299 906.06 0.00 0.00 0.00 44.00 0.00 276 905.99 0.00 0.00 0.00 46.00 0.00 255 905.91 0.00 0.00 0.00 48.00 0.00 235 905.83 0.00 0.00 0.00 50.00 0.00 216 905.76 0.00 0.00 0.00 52.00 0.00 197 905.68 0.00 0.00 0.00 54.00 0.00 179 905.60 0.00 0.00 0.00 56.00 0.00 163 905.52 0.00 0.00 0.00 58.00 0.00 147 905.45 0.00 0.00 0.00 60.00 0.00 131 905.37 0.00 0.00 0.00 62.00 0.00 117 905.29 0.00 0.00 0.00 64.00 0.00 104 905.22 0.00 0.00 0.00 66.00 0.00 91 905.14 0.00 0.00 0.00 68.00 0.00 79 905.06 0.00 0.00 0.00 70.00 0.00 68 904.99 0.00 0.00 0.00 72.00 0.00 58 904.91 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 99HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond RG 2: rain garden Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 904.00 0.00 0.00 0.00 904.05 0.00 0.00 0.00 904.10 0.00 0.00 0.00 904.15 0.00 0.00 0.00 904.20 0.00 0.00 0.00 904.25 0.00 0.00 0.00 904.30 0.00 0.00 0.00 904.35 0.00 0.00 0.00 904.40 0.00 0.00 0.00 904.45 0.00 0.00 0.00 904.50 0.00 0.00 0.00 904.55 0.00 0.00 0.00 904.60 0.00 0.00 0.00 904.65 0.00 0.00 0.00 904.70 0.00 0.00 0.00 904.75 0.00 0.00 0.00 904.80 0.00 0.00 0.00 904.85 0.00 0.00 0.00 904.90 0.00 0.00 0.00 904.95 0.00 0.00 0.00 905.00 0.00 0.00 0.00 905.05 0.00 0.00 0.00 905.10 0.00 0.00 0.00 905.15 0.00 0.00 0.00 905.20 0.00 0.00 0.00 905.25 0.00 0.00 0.00 905.30 0.00 0.00 0.00 905.35 0.00 0.00 0.00 905.40 0.00 0.00 0.00 905.45 0.00 0.00 0.00 905.50 0.00 0.00 0.00 905.55 0.00 0.00 0.00 905.60 0.00 0.00 0.00 905.65 0.00 0.00 0.00 905.70 0.00 0.00 0.00 905.75 0.00 0.00 0.00 905.80 0.00 0.00 0.00 905.85 0.00 0.00 0.00 905.90 0.00 0.00 0.00 905.95 0.00 0.00 0.00 906.00 0.00 0.00 0.00 906.05 0.00 0.00 0.00 906.10 0.00 0.00 0.00 906.15 0.00 0.00 0.00 906.20 0.00 0.00 0.00 906.25 0.00 0.00 0.00 906.30 0.00 0.00 0.00 906.35 0.00 0.00 0.00 906.40 0.00 0.00 0.00 906.45 0.00 0.00 0.00 906.50 0.00 0.00 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 906.55 0.00 0.00 0.00 906.60 0.00 0.00 0.00 906.65 0.00 0.00 0.00 906.70 0.01 0.01 0.00 906.75 0.01 0.01 0.00 906.80 0.01 0.01 0.00 906.85 0.01 0.01 0.00 906.90 0.01 0.01 0.00 906.95 0.37 0.01 0.37 907.00 1.05 0.01 1.04 907.05 1.93 0.01 1.93 907.10 2.99 0.01 2.98 907.15 4.20 0.01 4.19 907.20 5.54 0.01 5.54 907.25 7.02 0.01 7.01 907.30 8.61 0.01 8.61 907.35 10.33 0.01 10.32 907.40 12.15 0.01 12.15 907.45 14.08 0.01 14.08 907.50 16.12 0.01 16.12 907.55 18.26 0.01 18.26 907.60 20.51 0.01 20.50 907.65 22.85 0.01 22.84 907.70 25.28 0.01 25.28 907.75 27.82 0.01 27.81 907.80 30.44 0.01 30.44 907.85 33.16 0.01 33.15 907.90 35.97 0.01 35.97 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 100HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond RG 2: rain garden Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 904.00 0 0 904.05 7 0 904.10 14 1 904.15 21 2 904.20 28 3 904.25 35 4 904.30 42 6 904.35 49 9 904.40 56 11 904.45 63 14 904.50 70 18 904.55 77 21 904.60 84 25 904.65 91 30 904.70 98 34 904.75 105 39 904.80 112 45 904.85 119 51 904.90 126 57 904.95 133 63 905.00 140 70 905.05 147 77 905.10 154 85 905.15 161 93 905.20 168 101 905.25 175 109 905.30 182 118 905.35 189 128 905.40 196 137 905.45 203 147 905.50 210 158 905.55 217 168 905.60 224 179 905.65 231 191 905.70 238 202 905.75 245 214 905.80 252 227 905.85 259 240 905.90 266 253 905.95 273 266 906.00 280 280 906.05 294 294 906.10 308 309 906.15 322 325 906.20 336 342 906.25 350 359 906.30 364 377 906.35 378 395 906.40 392 414 906.45 406 434 906.50 420 455 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.55 434 476 906.60 448 498 906.65 462 521 906.70 476 545 906.75 490 569 906.80 504 594 906.85 518 619 906.90 532 645 906.95 546 672 907.00 560 700 907.05 560 700 907.10 560 700 907.15 560 700 907.20 560 700 907.25 560 700 907.30 560 700 907.35 560 700 907.40 560 700 907.45 560 700 907.50 560 700 907.55 560 700 907.60 560 700 907.65 560 700 907.70 560 700 907.75 560 700 907.80 560 700 907.85 560 700 907.90 560 700 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 101HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG1: UG Infil Basin 1 Inflow Area = 0.372 ac, 53.49% Impervious, Inflow Depth = 2.61" for 10-YR event Inflow = 1.62 cfs @ 12.12 hrs, Volume= 0.081 af Outflow = 1.02 cfs @ 12.18 hrs, Volume= 0.081 af, Atten= 37%, Lag= 3.3 min Discarded = 0.02 cfs @ 12.18 hrs, Volume= 0.043 af Primary = 1.01 cfs @ 12.18 hrs, Volume= 0.038 af Routed to Link N Pro : North Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 896.64' @ 12.18 hrs Surf.Area= 815 sf Storage= 1,393 cf Plug-Flow detention time= 413.8 min calculated for 0.081 af (100% of inflow) Center-of-Mass det. time= 413.9 min ( 1,177.1 - 763.2 ) Volume Invert Avail.Storage Storage Description #1A 893.50' 936 cf 10.75'W x 55.50'L x 4.50'H Field A Z=0.5 3,386 cf Overall - 1,046 cf Embedded = 2,340 cf x 40.0% Voids #2A 894.00' 1,046 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside 1,982 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 893.50'0.700 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 896.00'10.0" Round Culvert L= 38.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.20' S= 0.0211 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 0.55 sf Discarded OutFlow Max=0.02 cfs @ 12.18 hrs HW=896.64' (Free Discharge) 1=Exfiltration ( Controls 0.02 cfs) Primary OutFlow Max=1.00 cfs @ 12.18 hrs HW=896.64' (Free Discharge) 2=Culvert (Barrel Controls 1.00 cfs @ 3.08 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 102HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG1: UG Infil Basin 1 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +10.00' Row Adjustment +3.50' Header x 1 = 53.50' Row Length +12.0" End Stone x 2 = 55.50' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 60.00' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +10.00' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 1,046.3 cf Chamber Storage 3,386.0 cf Field - 1,046.3 cf Chambers = 2,339.7 cf Stone x 40.0% Voids = 935.9 cf Stone Storage Chamber Storage + Stone Storage = 1,982.2 cf = 0.046 af Overall Storage Efficiency = 58.5% Overall System Size = 55.50' x 10.75' x 4.50' 4 Chambers 125.4 cy Field 86.7 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 103HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG1: UG Infil Basin 1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 893.50 0.00 0.00 0.00 2.00 0.00 0 893.50 0.00 0.00 0.00 4.00 0.00 3 893.51 0.00 0.00 0.00 6.00 0.01 9 893.54 0.01 0.01 0.00 8.00 0.01 20 893.58 0.01 0.01 0.00 10.00 0.03 92 893.88 0.01 0.01 0.00 12.00 0.76 813 895.55 0.01 0.01 0.00 14.00 0.04 1,112 896.11 0.05 0.01 0.04 16.00 0.02 1,086 896.06 0.02 0.01 0.01 18.00 0.02 1,075 896.04 0.02 0.01 0.01 20.00 0.01 1,064 896.02 0.02 0.01 0.00 22.00 0.01 1,039 895.97 0.01 0.01 0.00 24.00 0.00 981 895.87 0.01 0.01 0.00 26.00 0.00 884 895.68 0.01 0.01 0.00 28.00 0.00 789 895.50 0.01 0.01 0.00 30.00 0.00 696 895.32 0.01 0.01 0.00 32.00 0.00 605 895.14 0.01 0.01 0.00 34.00 0.00 516 894.96 0.01 0.01 0.00 36.00 0.00 430 894.78 0.01 0.01 0.00 38.00 0.00 346 894.59 0.01 0.01 0.00 40.00 0.00 265 894.40 0.01 0.01 0.00 42.00 0.00 185 894.19 0.01 0.01 0.00 44.00 0.00 109 893.95 0.01 0.01 0.00 46.00 0.00 36 893.65 0.01 0.01 0.00 48.00 0.00 0 893.50 0.00 0.00 0.00 50.00 0.00 0 893.50 0.00 0.00 0.00 52.00 0.00 0 893.50 0.00 0.00 0.00 54.00 0.00 0 893.50 0.00 0.00 0.00 56.00 0.00 0 893.50 0.00 0.00 0.00 58.00 0.00 0 893.50 0.00 0.00 0.00 60.00 0.00 0 893.50 0.00 0.00 0.00 62.00 0.00 0 893.50 0.00 0.00 0.00 64.00 0.00 0 893.50 0.00 0.00 0.00 66.00 0.00 0 893.50 0.00 0.00 0.00 68.00 0.00 0 893.50 0.00 0.00 0.00 70.00 0.00 0 893.50 0.00 0.00 0.00 72.00 0.00 0 893.50 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 104HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG1: UG Infil Basin 1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 893.50 0.00 0.00 0.00 893.55 0.01 0.01 0.00 893.60 0.01 0.01 0.00 893.65 0.01 0.01 0.00 893.70 0.01 0.01 0.00 893.75 0.01 0.01 0.00 893.80 0.01 0.01 0.00 893.85 0.01 0.01 0.00 893.90 0.01 0.01 0.00 893.95 0.01 0.01 0.00 894.00 0.01 0.01 0.00 894.05 0.01 0.01 0.00 894.10 0.01 0.01 0.00 894.15 0.01 0.01 0.00 894.20 0.01 0.01 0.00 894.25 0.01 0.01 0.00 894.30 0.01 0.01 0.00 894.35 0.01 0.01 0.00 894.40 0.01 0.01 0.00 894.45 0.01 0.01 0.00 894.50 0.01 0.01 0.00 894.55 0.01 0.01 0.00 894.60 0.01 0.01 0.00 894.65 0.01 0.01 0.00 894.70 0.01 0.01 0.00 894.75 0.01 0.01 0.00 894.80 0.01 0.01 0.00 894.85 0.01 0.01 0.00 894.90 0.01 0.01 0.00 894.95 0.01 0.01 0.00 895.00 0.01 0.01 0.00 895.05 0.01 0.01 0.00 895.10 0.01 0.01 0.00 895.15 0.01 0.01 0.00 895.20 0.01 0.01 0.00 895.25 0.01 0.01 0.00 895.30 0.01 0.01 0.00 895.35 0.01 0.01 0.00 895.40 0.01 0.01 0.00 895.45 0.01 0.01 0.00 895.50 0.01 0.01 0.00 895.55 0.01 0.01 0.00 895.60 0.01 0.01 0.00 895.65 0.01 0.01 0.00 895.70 0.01 0.01 0.00 895.75 0.01 0.01 0.00 895.80 0.01 0.01 0.00 895.85 0.01 0.01 0.00 895.90 0.01 0.01 0.00 895.95 0.01 0.01 0.00 896.00 0.01 0.01 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 896.05 0.02 0.01 0.01 896.10 0.04 0.01 0.03 896.15 0.08 0.01 0.06 896.20 0.13 0.01 0.12 896.25 0.19 0.01 0.18 896.30 0.27 0.01 0.26 896.35 0.36 0.01 0.35 896.40 0.46 0.01 0.44 896.45 0.57 0.01 0.55 896.50 0.68 0.01 0.66 896.55 0.80 0.02 0.78 896.60 0.92 0.02 0.90 896.65 1.04 0.02 1.03 896.70 1.16 0.02 1.15 896.75 1.28 0.02 1.27 896.80 1.40 0.02 1.38 896.85 1.51 0.02 1.49 896.90 1.61 0.02 1.59 896.95 1.69 0.02 1.68 897.00 1.76 0.02 1.74 897.05 1.79 0.02 1.78 897.10 1.77 0.02 1.75 897.15 1.75 0.02 1.73 897.20 1.79 0.02 1.77 897.25 1.82 0.02 1.81 897.30 1.86 0.02 1.85 897.35 1.90 0.02 1.88 897.40 1.93 0.02 1.92 897.45 1.97 0.02 1.95 897.50 2.00 0.02 1.99 897.55 2.04 0.02 2.02 897.60 2.07 0.02 2.05 897.65 2.10 0.02 2.08 897.70 2.13 0.02 2.12 897.75 2.17 0.02 2.15 897.80 2.20 0.02 2.18 897.85 2.23 0.02 2.21 897.90 2.26 0.02 2.24 897.95 2.29 0.02 2.27 898.00 2.32 0.02 2.30 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 105HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG1: UG Infil Basin 1 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 893.50 597 0 893.55 600 12 893.60 603 24 893.65 607 36 893.70 610 48 893.75 613 60 893.80 617 73 893.85 620 85 893.90 623 98 893.95 627 110 894.00 630 123 894.05 633 137 894.10 637 153 894.15 640 170 894.20 643 188 894.25 647 206 894.30 650 226 894.35 654 245 894.40 657 265 894.45 660 286 894.50 664 307 894.55 667 329 894.60 671 350 894.65 674 373 894.70 678 395 894.75 681 418 894.80 684 441 894.85 688 464 894.90 691 488 894.95 695 512 895.00 698 536 895.05 702 561 895.10 705 585 895.15 709 610 895.20 712 635 895.25 716 660 895.30 719 686 895.35 723 711 895.40 726 737 895.45 730 762 895.50 733 788 895.55 737 814 895.60 740 841 895.65 744 867 895.70 747 893 895.75 751 919 895.80 754 946 895.85 758 972 895.90 761 999 895.95 765 1,026 896.00 769 1,052 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.05 772 1,079 896.10 776 1,106 896.15 779 1,132 896.20 783 1,159 896.25 786 1,186 896.30 790 1,212 896.35 794 1,239 896.40 797 1,266 896.45 801 1,292 896.50 804 1,319 896.55 808 1,345 896.60 812 1,371 896.65 815 1,397 896.70 819 1,423 896.75 823 1,449 896.80 826 1,475 896.85 830 1,501 896.90 833 1,526 896.95 837 1,551 897.00 841 1,576 897.05 844 1,601 897.10 848 1,625 897.15 852 1,649 897.20 855 1,673 897.25 859 1,696 897.30 863 1,719 897.35 867 1,741 897.40 870 1,763 897.45 874 1,784 897.50 878 1,803 897.55 881 1,821 897.60 885 1,838 897.65 889 1,856 897.70 893 1,874 897.75 896 1,892 897.80 900 1,910 897.85 904 1,928 897.90 907 1,946 897.95 911 1,964 898.00 915 1,982 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 106HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG3: UG Infil Basin 3 Inflow Area = 0.519 ac, 33.14% Impervious, Inflow Depth = 1.98" for 10-YR event Inflow = 1.75 cfs @ 12.13 hrs, Volume= 0.086 af Outflow = 0.76 cfs @ 12.21 hrs, Volume= 0.085 af, Atten= 56%, Lag= 5.3 min Discarded = 0.02 cfs @ 12.21 hrs, Volume= 0.057 af Primary = 0.74 cfs @ 12.21 hrs, Volume= 0.028 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 883.65' @ 12.21 hrs Surf.Area= 799 sf Storage= 1,654 cf Plug-Flow detention time= 783.9 min calculated for 0.085 af (99% of inflow) Center-of-Mass det. time= 780.4 min ( 1,558.5 - 778.1 ) Volume Invert Avail.Storage Storage Description #1A 879.00' 787 cf 10.75'W x 46.00'L x 4.50'H Field A Z=0.5 2,830 cf Overall - 863 cf Embedded = 1,967 cf x 40.0% Voids #2A 879.50' 863 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside #3 883.50' 36 cf Custom Stage Data (Prismatic) Listed below (Recalc) 1,686 cf Total Available Storage Storage Group A created with Chamber Wizard Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.50 20 0 0 884.30 70 36 36 Device Routing Invert Outlet Devices #1 Discarded 879.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 883.54'24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.02 cfs @ 12.21 hrs HW=883.65' (Free Discharge) 1=Exfiltration ( Controls 0.02 cfs) Primary OutFlow Max=0.72 cfs @ 12.21 hrs HW=883.65' (Free Discharge) 2=Orifice/Grate (Weir Controls 0.72 cfs @ 1.07 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 107HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG3: UG Infil Basin 3 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +0.50' Row Adjustment +3.50' Header x 1 = 44.00' Row Length +12.0" End Stone x 2 = 46.00' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 50.50' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +0.50' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 863.5 cf Chamber Storage 2,830.2 cf Field - 863.5 cf Chambers = 1,966.7 cf Stone x 40.0% Voids = 786.7 cf Stone Storage Chamber Storage + Stone Storage = 1,650.2 cf = 0.038 af Overall Storage Efficiency = 58.3% Overall System Size = 46.00' x 10.75' x 4.50' 4 Chambers 104.8 cy Field 72.8 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 108HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG3: UG Infil Basin 3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 879.00 0.00 0.00 0.00 2.00 0.00 0 879.00 0.00 0.00 0.00 4.00 0.00 5 879.02 0.00 0.00 0.00 6.00 0.01 14 879.07 0.01 0.01 0.00 8.00 0.01 42 879.21 0.01 0.01 0.00 10.00 0.02 124 879.59 0.01 0.01 0.00 12.00 0.75 780 881.29 0.01 0.01 0.00 14.00 0.05 1,651 883.55 0.05 0.02 0.04 16.00 0.03 1,651 883.54 0.03 0.02 0.01 18.00 0.02 1,651 883.54 0.02 0.02 0.00 20.00 0.02 1,650 883.50 0.02 0.02 0.00 22.00 0.01 1,622 883.41 0.02 0.02 0.00 24.00 0.00 1,554 883.18 0.02 0.02 0.00 26.00 0.00 1,442 882.84 0.02 0.02 0.00 28.00 0.00 1,336 882.56 0.01 0.01 0.00 30.00 0.00 1,234 882.32 0.01 0.01 0.00 32.00 0.00 1,137 882.10 0.01 0.01 0.00 34.00 0.00 1,045 881.89 0.01 0.01 0.00 36.00 0.00 957 881.69 0.01 0.01 0.00 38.00 0.00 872 881.50 0.01 0.01 0.00 40.00 0.00 791 881.31 0.01 0.01 0.00 42.00 0.00 714 881.14 0.01 0.01 0.00 44.00 0.00 640 880.97 0.01 0.01 0.00 46.00 0.00 569 880.80 0.01 0.01 0.00 48.00 0.00 502 880.64 0.01 0.01 0.00 50.00 0.00 437 880.48 0.01 0.01 0.00 52.00 0.00 375 880.32 0.01 0.01 0.00 54.00 0.00 316 880.17 0.01 0.01 0.00 56.00 0.00 260 880.02 0.01 0.01 0.00 58.00 0.00 207 879.86 0.01 0.01 0.00 60.00 0.00 157 879.70 0.01 0.01 0.00 62.00 0.00 109 879.53 0.01 0.01 0.00 64.00 0.00 65 879.32 0.01 0.01 0.00 66.00 0.00 24 879.12 0.01 0.01 0.00 68.00 0.00 1 879.01 0.00 0.00 0.00 70.00 0.00 0 879.00 0.00 0.00 0.00 72.00 0.00 0 879.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 109HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG3: UG Infil Basin 3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 879.00 0.00 0.00 0.00 879.10 0.01 0.01 0.00 879.20 0.01 0.01 0.00 879.30 0.01 0.01 0.00 879.40 0.01 0.01 0.00 879.50 0.01 0.01 0.00 879.60 0.01 0.01 0.00 879.70 0.01 0.01 0.00 879.80 0.01 0.01 0.00 879.90 0.01 0.01 0.00 880.00 0.01 0.01 0.00 880.10 0.01 0.01 0.00 880.20 0.01 0.01 0.00 880.30 0.01 0.01 0.00 880.40 0.01 0.01 0.00 880.50 0.01 0.01 0.00 880.60 0.01 0.01 0.00 880.70 0.01 0.01 0.00 880.80 0.01 0.01 0.00 880.90 0.01 0.01 0.00 881.00 0.01 0.01 0.00 881.10 0.01 0.01 0.00 881.20 0.01 0.01 0.00 881.30 0.01 0.01 0.00 881.40 0.01 0.01 0.00 881.50 0.01 0.01 0.00 881.60 0.01 0.01 0.00 881.70 0.01 0.01 0.00 881.80 0.01 0.01 0.00 881.90 0.01 0.01 0.00 882.00 0.01 0.01 0.00 882.10 0.01 0.01 0.00 882.20 0.01 0.01 0.00 882.30 0.01 0.01 0.00 882.40 0.01 0.01 0.00 882.50 0.01 0.01 0.00 882.60 0.01 0.01 0.00 882.70 0.01 0.01 0.00 882.80 0.02 0.02 0.00 882.90 0.02 0.02 0.00 883.00 0.02 0.02 0.00 883.10 0.02 0.02 0.00 883.20 0.02 0.02 0.00 883.30 0.02 0.02 0.00 883.40 0.02 0.02 0.00 883.50 0.02 0.02 0.00 883.60 0.32 0.02 0.30 883.70 1.33 0.02 1.31 883.80 2.74 0.02 2.72 883.90 4.46 0.02 4.44 884.00 6.43 0.02 6.41 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 884.10 8.63 0.02 8.61 884.20 11.04 0.02 11.02 884.30 13.21 0.02 13.19 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 110HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG3: UG Infil Basin 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 879.00 495 0 879.10 500 20 879.20 506 40 879.30 512 60 879.40 517 81 879.50 523 102 879.60 529 127 879.70 535 156 879.80 541 187 879.90 546 220 880.00 552 255 880.10 558 291 880.20 564 328 880.30 570 366 880.40 576 405 880.50 582 445 880.60 588 486 880.70 594 527 880.80 600 569 880.90 606 611 881.00 612 654 881.10 618 697 881.20 624 741 881.30 630 785 881.40 636 829 881.50 643 874 881.60 649 918 881.70 655 962 881.80 661 1,007 881.90 667 1,051 882.00 674 1,095 882.10 680 1,139 882.20 686 1,182 882.30 693 1,225 882.40 699 1,268 882.50 705 1,310 882.60 712 1,351 882.70 718 1,391 882.80 725 1,429 882.90 731 1,466 883.00 738 1,499 883.10 744 1,529 883.20 750 1,559 883.30 757 1,589 883.40 764 1,620 883.50 790 1,650 883.60 796 1,652 883.70 803 1,655 883.80 809 1,659 883.90 815 1,663 884.00 821 1,668 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.10 828 1,673 884.20 834 1,679 884.30 840 1,686 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 111HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Ex: North Existing Inflow Area = 0.841 ac, 7.02% Impervious, Inflow Depth = 1.18" for 10-YR event Inflow = 1.77 cfs @ 12.13 hrs, Volume= 0.082 af Primary = 1.77 cfs @ 12.13 hrs, Volume= 0.082 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 112HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Ex: North Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.01 0.00 0.01 11.00 0.02 0.00 0.02 12.00 0.54 0.00 0.54 13.00 0.17 0.00 0.17 14.00 0.07 0.00 0.07 15.00 0.06 0.00 0.06 16.00 0.04 0.00 0.04 17.00 0.03 0.00 0.03 18.00 0.03 0.00 0.03 19.00 0.03 0.00 0.03 20.00 0.02 0.00 0.02 21.00 0.02 0.00 0.02 22.00 0.01 0.00 0.01 23.00 0.01 0.00 0.01 24.00 0.01 0.00 0.01 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 113HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Pro: North Proposed Inflow Area = 0.902 ac, 22.06% Impervious, Inflow Depth = 1.07" for 10-YR event Inflow = 1.77 cfs @ 12.15 hrs, Volume= 0.081 af Primary = 1.77 cfs @ 12.15 hrs, Volume= 0.081 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 114HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Pro: North Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.23 0.00 0.23 13.00 0.21 0.00 0.21 14.00 0.08 0.00 0.08 15.00 0.06 0.00 0.06 16.00 0.03 0.00 0.03 17.00 0.03 0.00 0.03 18.00 0.02 0.00 0.02 19.00 0.02 0.00 0.02 20.00 0.01 0.00 0.01 21.00 0.01 0.00 0.01 22.00 0.01 0.00 0.01 23.00 0.01 0.00 0.01 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 115HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Ex: South Existing Inflow Area = 0.730 ac, 24.38% Impervious, Inflow Depth = 1.71" for 10-YR event Inflow = 2.15 cfs @ 12.13 hrs, Volume= 0.104 af Primary = 2.15 cfs @ 12.13 hrs, Volume= 0.104 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 116HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Ex: South Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.01 0.00 0.01 6.00 0.01 0.00 0.01 7.00 0.01 0.00 0.01 8.00 0.01 0.00 0.01 9.00 0.01 0.00 0.01 10.00 0.03 0.00 0.03 11.00 0.06 0.00 0.06 12.00 0.86 0.00 0.86 13.00 0.18 0.00 0.18 14.00 0.07 0.00 0.07 15.00 0.06 0.00 0.06 16.00 0.04 0.00 0.04 17.00 0.03 0.00 0.03 18.00 0.03 0.00 0.03 19.00 0.03 0.00 0.03 20.00 0.02 0.00 0.02 21.00 0.02 0.00 0.02 22.00 0.01 0.00 0.01 23.00 0.01 0.00 0.01 24.00 0.01 0.00 0.01 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 117HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Pro: South Proposed Inflow Area = 0.680 ac, 32.94% Impervious, Inflow Depth = 0.62" for 10-YR event Inflow = 0.81 cfs @ 12.21 hrs, Volume= 0.035 af Primary = 0.81 cfs @ 12.21 hrs, Volume= 0.035 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 10-YR Rainfall=4.28"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 118HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Pro: South Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 0.03 0.00 0.03 13.00 0.13 0.00 0.13 14.00 0.05 0.00 0.05 15.00 0.04 0.00 0.04 16.00 0.01 0.00 0.01 17.00 0.01 0.00 0.01 18.00 0.01 0.00 0.01 19.00 0.00 0.00 0.00 20.00 0.00 0.00 0.00 21.00 0.00 0.00 0.00 22.00 0.00 0.00 0.00 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 119HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=0.372 ac 53.49% Impervious Runoff Depth=5.28"Subcatchment NA: North A Proposed Tc=5.0 min CN=61/98 Runoff=3.34 cfs 0.164 af Runoff Area=0.841 ac 7.02% Impervious Runoff Depth=3.34"Subcatchment NA Ex: North Exist Tc=5.0 min CN=61/98 Runoff=5.37 cfs 0.234 af Runoff Area=0.530 ac 0.00% Impervious Runoff Depth=3.05"Subcatchment NB: North B Proposed Tc=5.0 min CN=61/0 Runoff=3.18 cfs 0.135 af Runoff Area=0.087 ac 59.77% Impervious Runoff Depth=5.55"Subcatchment SA: South A Proposed Tc=5.0 min CN=61/98 Runoff=0.81 cfs 0.040 af Runoff Area=0.730 ac 24.38% Impervious Runoff Depth=4.07"Subcatchment SA Ex: South Exist Tc=5.0 min CN=61/98 Runoff=5.37 cfs 0.247 af Runoff Area=0.055 ac 0.00% Impervious Runoff Depth=3.05"Subcatchment SB: South B Proposed Tc=5.0 min CN=61/0 Runoff=0.33 cfs 0.014 af Runoff Area=0.519 ac 33.14% Impervious Runoff Depth=4.43"Subcatchment SC: South C Proposed Tc=5.0 min CN=61/98 Runoff=4.06 cfs 0.192 af Runoff Area=0.019 ac 0.00% Impervious Runoff Depth=3.05"Subcatchment SD: South D Proposed Tc=5.0 min CN=61/0 Runoff=0.11 cfs 0.005 af Peak Elev=906.98' Storage=690 cf Inflow=0.81 cfs 0.040 afPond RG 2: rain garden Discarded=0.01 cfs 0.019 af Primary=0.79 cfs 0.019 af Outflow=0.80 cfs 0.039 af Peak Elev=897.88' Storage=1,937 cf Inflow=3.34 cfs 0.164 afPond UG1: UG Infil Basin 1 Discarded=0.02 cfs 0.046 af Primary=2.23 cfs 0.118 af Outflow=2.24 cfs 0.164 af Peak Elev=883.88' Storage=1,662 cf Inflow=4.06 cfs 0.192 afPond UG3: UG Infil Basin 3 Discarded=0.02 cfs 0.060 af Primary=4.05 cfs 0.132 af Outflow=4.06 cfs 0.192 af Inflow=5.37 cfs 0.234 afLink N Ex: North Existing Primary=5.37 cfs 0.234 af Inflow=5.22 cfs 0.252 afLink N Pro: North Proposed Primary=5.22 cfs 0.252 af Inflow=5.37 cfs 0.247 afLink S Ex: South Existing Primary=5.37 cfs 0.247 af Inflow=5.27 cfs 0.170 afLink S Pro: South Proposed Primary=5.27 cfs 0.170 af Total Runoff Area = 3.153 ac Runoff Volume = 1.030 af Average Runoff Depth = 3.92" 79.07% Pervious = 2.493 ac 20.93% Impervious = 0.660 ac Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 120HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA: North A Proposed Runoff = 3.34 cfs @ 12.12 hrs, Volume= 0.164 af, Depth= 5.28" Routed to Pond UG1 : UG Infil Basin 1 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.199 98 IMPERVIOUS 0.173 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.372 81 Weighted Average 0.173 61 46.51% Pervious Area 0.199 98 53.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 121HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA: North A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.07 0.01 6.00 0.38 0.00 0.21 0.02 8.00 0.63 0.00 0.43 0.03 10.00 1.03 0.00 0.82 0.05 12.00 3.46 0.55 3.22 1.61 14.00 6.44 2.31 6.20 0.09 16.00 6.84 2.59 6.61 0.04 18.00 7.09 2.77 6.85 0.04 20.00 7.28 2.90 7.04 0.03 22.00 7.40 3.00 7.16 0.02 24.00 7.47 3.05 7.23 0.01 26.00 7.47 3.05 7.23 0.00 28.00 7.47 3.05 7.23 0.00 30.00 7.47 3.05 7.23 0.00 32.00 7.47 3.05 7.23 0.00 34.00 7.47 3.05 7.23 0.00 36.00 7.47 3.05 7.23 0.00 38.00 7.47 3.05 7.23 0.00 40.00 7.47 3.05 7.23 0.00 42.00 7.47 3.05 7.23 0.00 44.00 7.47 3.05 7.23 0.00 46.00 7.47 3.05 7.23 0.00 48.00 7.47 3.05 7.23 0.00 50.00 7.47 3.05 7.23 0.00 52.00 7.47 3.05 7.23 0.00 54.00 7.47 3.05 7.23 0.00 56.00 7.47 3.05 7.23 0.00 58.00 7.47 3.05 7.23 0.00 60.00 7.47 3.05 7.23 0.00 62.00 7.47 3.05 7.23 0.00 64.00 7.47 3.05 7.23 0.00 66.00 7.47 3.05 7.23 0.00 68.00 7.47 3.05 7.23 0.00 70.00 7.47 3.05 7.23 0.00 72.00 7.47 3.05 7.23 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 122HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NA Ex: North Exist Runoff = 5.37 cfs @ 12.13 hrs, Volume= 0.234 af, Depth= 3.34" Routed to Link N Ex : North Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.059 98 IMPERVIOUS 0.782 61 >75% Grass cover, Good, HSG B 0.841 64 Weighted Average 0.782 61 92.98% Pervious Area 0.059 98 7.02% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 123HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NA Ex: North Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.07 0.00 6.00 0.38 0.00 0.21 0.01 8.00 0.63 0.00 0.43 0.01 10.00 1.03 0.00 0.82 0.02 12.00 3.46 0.55 3.22 2.17 14.00 6.44 2.31 6.20 0.17 16.00 6.84 2.59 6.61 0.09 18.00 7.09 2.77 6.85 0.07 20.00 7.28 2.90 7.04 0.05 22.00 7.40 3.00 7.16 0.03 24.00 7.47 3.05 7.23 0.01 26.00 7.47 3.05 7.23 0.00 28.00 7.47 3.05 7.23 0.00 30.00 7.47 3.05 7.23 0.00 32.00 7.47 3.05 7.23 0.00 34.00 7.47 3.05 7.23 0.00 36.00 7.47 3.05 7.23 0.00 38.00 7.47 3.05 7.23 0.00 40.00 7.47 3.05 7.23 0.00 42.00 7.47 3.05 7.23 0.00 44.00 7.47 3.05 7.23 0.00 46.00 7.47 3.05 7.23 0.00 48.00 7.47 3.05 7.23 0.00 50.00 7.47 3.05 7.23 0.00 52.00 7.47 3.05 7.23 0.00 54.00 7.47 3.05 7.23 0.00 56.00 7.47 3.05 7.23 0.00 58.00 7.47 3.05 7.23 0.00 60.00 7.47 3.05 7.23 0.00 62.00 7.47 3.05 7.23 0.00 64.00 7.47 3.05 7.23 0.00 66.00 7.47 3.05 7.23 0.00 68.00 7.47 3.05 7.23 0.00 70.00 7.47 3.05 7.23 0.00 72.00 7.47 3.05 7.23 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 124HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment NB: North B Proposed Runoff = 3.18 cfs @ 12.13 hrs, Volume= 0.135 af, Depth= 3.05" Routed to Link N Pro : North Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.530 61 >75% Grass cover, Good, HSG B 0.530 61 Weighted Average 0.530 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 125HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment NB: North B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.00 0.00 6.00 0.38 0.00 0.00 0.00 8.00 0.63 0.00 0.00 0.00 10.00 1.03 0.00 0.00 0.00 12.00 3.46 0.55 0.00 1.22 14.00 6.44 2.31 0.00 0.10 16.00 6.84 2.59 0.00 0.05 18.00 7.09 2.77 0.00 0.04 20.00 7.28 2.90 0.00 0.03 22.00 7.40 3.00 0.00 0.02 24.00 7.47 3.05 0.00 0.01 26.00 7.47 3.05 0.00 0.00 28.00 7.47 3.05 0.00 0.00 30.00 7.47 3.05 0.00 0.00 32.00 7.47 3.05 0.00 0.00 34.00 7.47 3.05 0.00 0.00 36.00 7.47 3.05 0.00 0.00 38.00 7.47 3.05 0.00 0.00 40.00 7.47 3.05 0.00 0.00 42.00 7.47 3.05 0.00 0.00 44.00 7.47 3.05 0.00 0.00 46.00 7.47 3.05 0.00 0.00 48.00 7.47 3.05 0.00 0.00 50.00 7.47 3.05 0.00 0.00 52.00 7.47 3.05 0.00 0.00 54.00 7.47 3.05 0.00 0.00 56.00 7.47 3.05 0.00 0.00 58.00 7.47 3.05 0.00 0.00 60.00 7.47 3.05 0.00 0.00 62.00 7.47 3.05 0.00 0.00 64.00 7.47 3.05 0.00 0.00 66.00 7.47 3.05 0.00 0.00 68.00 7.47 3.05 0.00 0.00 70.00 7.47 3.05 0.00 0.00 72.00 7.47 3.05 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 126HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA: South A Proposed Runoff = 0.81 cfs @ 12.12 hrs, Volume= 0.040 af, Depth= 5.55" Routed to Pond RG 2 : rain garden Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.052 98 IMPERVIOUS 0.035 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.087 83 Weighted Average 0.035 61 40.23% Pervious Area 0.052 98 59.77% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 127HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA: South A Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.07 0.00 6.00 0.38 0.00 0.21 0.00 8.00 0.63 0.00 0.43 0.01 10.00 1.03 0.00 0.82 0.01 12.00 3.46 0.55 3.22 0.40 14.00 6.44 2.31 6.20 0.02 16.00 6.84 2.59 6.61 0.01 18.00 7.09 2.77 6.85 0.01 20.00 7.28 2.90 7.04 0.01 22.00 7.40 3.00 7.16 0.00 24.00 7.47 3.05 7.23 0.00 26.00 7.47 3.05 7.23 0.00 28.00 7.47 3.05 7.23 0.00 30.00 7.47 3.05 7.23 0.00 32.00 7.47 3.05 7.23 0.00 34.00 7.47 3.05 7.23 0.00 36.00 7.47 3.05 7.23 0.00 38.00 7.47 3.05 7.23 0.00 40.00 7.47 3.05 7.23 0.00 42.00 7.47 3.05 7.23 0.00 44.00 7.47 3.05 7.23 0.00 46.00 7.47 3.05 7.23 0.00 48.00 7.47 3.05 7.23 0.00 50.00 7.47 3.05 7.23 0.00 52.00 7.47 3.05 7.23 0.00 54.00 7.47 3.05 7.23 0.00 56.00 7.47 3.05 7.23 0.00 58.00 7.47 3.05 7.23 0.00 60.00 7.47 3.05 7.23 0.00 62.00 7.47 3.05 7.23 0.00 64.00 7.47 3.05 7.23 0.00 66.00 7.47 3.05 7.23 0.00 68.00 7.47 3.05 7.23 0.00 70.00 7.47 3.05 7.23 0.00 72.00 7.47 3.05 7.23 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 128HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SA Ex: South Exist Runoff = 5.37 cfs @ 12.13 hrs, Volume= 0.247 af, Depth= 4.07" Routed to Link S Ex : South Existing Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.178 98 IMPERVIOUS 0.552 61 >75% Grass cover, Good, HSG B 0.730 70 Weighted Average 0.552 61 75.62% Pervious Area 0.178 98 24.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 129HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SA Ex: South Exist Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.07 0.01 6.00 0.38 0.00 0.21 0.02 8.00 0.63 0.00 0.43 0.02 10.00 1.03 0.00 0.82 0.05 12.00 3.46 0.55 3.22 2.36 14.00 6.44 2.31 6.20 0.16 16.00 6.84 2.59 6.61 0.08 18.00 7.09 2.77 6.85 0.06 20.00 7.28 2.90 7.04 0.05 22.00 7.40 3.00 7.16 0.03 24.00 7.47 3.05 7.23 0.01 26.00 7.47 3.05 7.23 0.00 28.00 7.47 3.05 7.23 0.00 30.00 7.47 3.05 7.23 0.00 32.00 7.47 3.05 7.23 0.00 34.00 7.47 3.05 7.23 0.00 36.00 7.47 3.05 7.23 0.00 38.00 7.47 3.05 7.23 0.00 40.00 7.47 3.05 7.23 0.00 42.00 7.47 3.05 7.23 0.00 44.00 7.47 3.05 7.23 0.00 46.00 7.47 3.05 7.23 0.00 48.00 7.47 3.05 7.23 0.00 50.00 7.47 3.05 7.23 0.00 52.00 7.47 3.05 7.23 0.00 54.00 7.47 3.05 7.23 0.00 56.00 7.47 3.05 7.23 0.00 58.00 7.47 3.05 7.23 0.00 60.00 7.47 3.05 7.23 0.00 62.00 7.47 3.05 7.23 0.00 64.00 7.47 3.05 7.23 0.00 66.00 7.47 3.05 7.23 0.00 68.00 7.47 3.05 7.23 0.00 70.00 7.47 3.05 7.23 0.00 72.00 7.47 3.05 7.23 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 130HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SB: South B Proposed Runoff = 0.33 cfs @ 12.13 hrs, Volume= 0.014 af, Depth= 3.05" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.055 61 >75% Grass cover, Good, HSG B 0.055 61 Weighted Average 0.055 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 131HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SB: South B Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.00 0.00 6.00 0.38 0.00 0.00 0.00 8.00 0.63 0.00 0.00 0.00 10.00 1.03 0.00 0.00 0.00 12.00 3.46 0.55 0.00 0.13 14.00 6.44 2.31 0.00 0.01 16.00 6.84 2.59 0.00 0.01 18.00 7.09 2.77 0.00 0.00 20.00 7.28 2.90 0.00 0.00 22.00 7.40 3.00 0.00 0.00 24.00 7.47 3.05 0.00 0.00 26.00 7.47 3.05 0.00 0.00 28.00 7.47 3.05 0.00 0.00 30.00 7.47 3.05 0.00 0.00 32.00 7.47 3.05 0.00 0.00 34.00 7.47 3.05 0.00 0.00 36.00 7.47 3.05 0.00 0.00 38.00 7.47 3.05 0.00 0.00 40.00 7.47 3.05 0.00 0.00 42.00 7.47 3.05 0.00 0.00 44.00 7.47 3.05 0.00 0.00 46.00 7.47 3.05 0.00 0.00 48.00 7.47 3.05 0.00 0.00 50.00 7.47 3.05 0.00 0.00 52.00 7.47 3.05 0.00 0.00 54.00 7.47 3.05 0.00 0.00 56.00 7.47 3.05 0.00 0.00 58.00 7.47 3.05 0.00 0.00 60.00 7.47 3.05 0.00 0.00 62.00 7.47 3.05 0.00 0.00 64.00 7.47 3.05 0.00 0.00 66.00 7.47 3.05 0.00 0.00 68.00 7.47 3.05 0.00 0.00 70.00 7.47 3.05 0.00 0.00 72.00 7.47 3.05 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 132HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SC: South C Proposed Runoff = 4.06 cfs @ 12.12 hrs, Volume= 0.192 af, Depth= 4.43" Routed to Pond UG3 : UG Infil Basin 3 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.172 98 IMPERVIOUS 0.347 61 >75% Grass cover, Good, HSG B 0.000 98 Water Surface, 0% imp, HSG B 0.519 73 Weighted Average 0.347 61 66.86% Pervious Area 0.172 98 33.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 133HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SC: South C Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.07 0.01 6.00 0.38 0.00 0.21 0.02 8.00 0.63 0.00 0.43 0.02 10.00 1.03 0.00 0.82 0.05 12.00 3.46 0.55 3.22 1.85 14.00 6.44 2.31 6.20 0.11 16.00 6.84 2.59 6.61 0.06 18.00 7.09 2.77 6.85 0.05 20.00 7.28 2.90 7.04 0.03 22.00 7.40 3.00 7.16 0.02 24.00 7.47 3.05 7.23 0.01 26.00 7.47 3.05 7.23 0.00 28.00 7.47 3.05 7.23 0.00 30.00 7.47 3.05 7.23 0.00 32.00 7.47 3.05 7.23 0.00 34.00 7.47 3.05 7.23 0.00 36.00 7.47 3.05 7.23 0.00 38.00 7.47 3.05 7.23 0.00 40.00 7.47 3.05 7.23 0.00 42.00 7.47 3.05 7.23 0.00 44.00 7.47 3.05 7.23 0.00 46.00 7.47 3.05 7.23 0.00 48.00 7.47 3.05 7.23 0.00 50.00 7.47 3.05 7.23 0.00 52.00 7.47 3.05 7.23 0.00 54.00 7.47 3.05 7.23 0.00 56.00 7.47 3.05 7.23 0.00 58.00 7.47 3.05 7.23 0.00 60.00 7.47 3.05 7.23 0.00 62.00 7.47 3.05 7.23 0.00 64.00 7.47 3.05 7.23 0.00 66.00 7.47 3.05 7.23 0.00 68.00 7.47 3.05 7.23 0.00 70.00 7.47 3.05 7.23 0.00 72.00 7.47 3.05 7.23 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 134HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Subcatchment SD: South D Proposed Runoff = 0.11 cfs @ 12.13 hrs, Volume= 0.005 af, Depth= 3.05" Routed to Link S Pro : South Proposed Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv., Time Span= 0.00-72.00 hrs, dt= 0.01 hrs MSE 24-hr 3 100-YR Rainfall=7.47" Area (ac) CN Description * 0.000 98 IMPERVIOUS 0.019 61 >75% Grass cover, Good, HSG B 0.019 61 Weighted Average 0.019 61 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 135HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Subcatchment SD: South D Proposed Time (hours) Precip. (inches) Perv.Excess (inches) Imp.Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 2.00 0.07 0.00 0.00 0.00 4.00 0.19 0.00 0.00 0.00 6.00 0.38 0.00 0.00 0.00 8.00 0.63 0.00 0.00 0.00 10.00 1.03 0.00 0.00 0.00 12.00 3.46 0.55 0.00 0.04 14.00 6.44 2.31 0.00 0.00 16.00 6.84 2.59 0.00 0.00 18.00 7.09 2.77 0.00 0.00 20.00 7.28 2.90 0.00 0.00 22.00 7.40 3.00 0.00 0.00 24.00 7.47 3.05 0.00 0.00 26.00 7.47 3.05 0.00 0.00 28.00 7.47 3.05 0.00 0.00 30.00 7.47 3.05 0.00 0.00 32.00 7.47 3.05 0.00 0.00 34.00 7.47 3.05 0.00 0.00 36.00 7.47 3.05 0.00 0.00 38.00 7.47 3.05 0.00 0.00 40.00 7.47 3.05 0.00 0.00 42.00 7.47 3.05 0.00 0.00 44.00 7.47 3.05 0.00 0.00 46.00 7.47 3.05 0.00 0.00 48.00 7.47 3.05 0.00 0.00 50.00 7.47 3.05 0.00 0.00 52.00 7.47 3.05 0.00 0.00 54.00 7.47 3.05 0.00 0.00 56.00 7.47 3.05 0.00 0.00 58.00 7.47 3.05 0.00 0.00 60.00 7.47 3.05 0.00 0.00 62.00 7.47 3.05 0.00 0.00 64.00 7.47 3.05 0.00 0.00 66.00 7.47 3.05 0.00 0.00 68.00 7.47 3.05 0.00 0.00 70.00 7.47 3.05 0.00 0.00 72.00 7.47 3.05 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 136HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond RG 2: rain garden Inflow Area = 0.087 ac, 59.77% Impervious, Inflow Depth = 5.55" for 100-YR event Inflow = 0.81 cfs @ 12.12 hrs, Volume= 0.040 af Outflow = 0.80 cfs @ 12.13 hrs, Volume= 0.039 af, Atten= 2%, Lag= 0.7 min Discarded = 0.01 cfs @ 12.13 hrs, Volume= 0.019 af Primary = 0.79 cfs @ 12.13 hrs, Volume= 0.019 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 906.98' @ 12.13 hrs Surf.Area= 555 sf Storage= 690 cf Plug-Flow detention time= 665.7 min calculated for 0.039 af (96% of inflow) Center-of-Mass det. time= 644.2 min ( 1,400.7 - 756.5 ) Volume Invert Avail.Storage Storage Description #1 904.00' 700 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 904.00 0 0 0 906.00 280 280 280 907.00 560 420 700 Device Routing Invert Outlet Devices #1 Discarded 904.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 906.90'10.0' long x 1.00' rise Sharp-Crested Rectangular Weir 2 End Contraction(s) 1.0' Crest Height Discarded OutFlow Max=0.01 cfs @ 12.13 hrs HW=906.98' (Free Discharge) 1=Exfiltration ( Controls 0.01 cfs) Primary OutFlow Max=0.77 cfs @ 12.13 hrs HW=906.98' (Free Discharge) 2=Sharp-Crested Rectangular Weir (Weir Controls 0.77 cfs @ 0.95 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 137HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond RG 2: rain garden Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 904.00 0.00 0.00 0.00 2.00 0.00 0 904.07 0.00 0.00 0.00 4.00 0.00 9 904.37 0.00 0.00 0.00 6.00 0.00 31 904.66 0.00 0.00 0.00 8.00 0.01 63 904.95 0.00 0.00 0.00 10.00 0.01 122 905.32 0.00 0.00 0.00 12.00 0.40 512 906.63 0.00 0.00 0.00 14.00 0.02 647 906.90 0.02 0.01 0.02 16.00 0.01 646 906.90 0.01 0.01 0.00 18.00 0.01 646 906.90 0.01 0.01 0.00 20.00 0.01 645 906.90 0.01 0.01 0.00 22.00 0.00 640 906.89 0.01 0.01 0.00 24.00 0.00 619 906.85 0.01 0.01 0.00 26.00 0.00 580 906.77 0.01 0.01 0.00 28.00 0.00 542 906.69 0.01 0.01 0.00 30.00 0.00 506 906.62 0.00 0.00 0.00 32.00 0.00 472 906.54 0.00 0.00 0.00 34.00 0.00 439 906.46 0.00 0.00 0.00 36.00 0.00 408 906.38 0.00 0.00 0.00 38.00 0.00 379 906.31 0.00 0.00 0.00 40.00 0.00 351 906.23 0.00 0.00 0.00 42.00 0.00 325 906.15 0.00 0.00 0.00 44.00 0.00 301 906.07 0.00 0.00 0.00 46.00 0.00 279 906.00 0.00 0.00 0.00 48.00 0.00 257 905.92 0.00 0.00 0.00 50.00 0.00 237 905.84 0.00 0.00 0.00 52.00 0.00 218 905.76 0.00 0.00 0.00 54.00 0.00 199 905.69 0.00 0.00 0.00 56.00 0.00 181 905.61 0.00 0.00 0.00 58.00 0.00 164 905.53 0.00 0.00 0.00 60.00 0.00 148 905.45 0.00 0.00 0.00 62.00 0.00 133 905.38 0.00 0.00 0.00 64.00 0.00 119 905.30 0.00 0.00 0.00 66.00 0.00 105 905.22 0.00 0.00 0.00 68.00 0.00 92 905.15 0.00 0.00 0.00 70.00 0.00 80 905.07 0.00 0.00 0.00 72.00 0.00 69 905.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 138HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond RG 2: rain garden Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 904.00 0.00 0.00 0.00 904.05 0.00 0.00 0.00 904.10 0.00 0.00 0.00 904.15 0.00 0.00 0.00 904.20 0.00 0.00 0.00 904.25 0.00 0.00 0.00 904.30 0.00 0.00 0.00 904.35 0.00 0.00 0.00 904.40 0.00 0.00 0.00 904.45 0.00 0.00 0.00 904.50 0.00 0.00 0.00 904.55 0.00 0.00 0.00 904.60 0.00 0.00 0.00 904.65 0.00 0.00 0.00 904.70 0.00 0.00 0.00 904.75 0.00 0.00 0.00 904.80 0.00 0.00 0.00 904.85 0.00 0.00 0.00 904.90 0.00 0.00 0.00 904.95 0.00 0.00 0.00 905.00 0.00 0.00 0.00 905.05 0.00 0.00 0.00 905.10 0.00 0.00 0.00 905.15 0.00 0.00 0.00 905.20 0.00 0.00 0.00 905.25 0.00 0.00 0.00 905.30 0.00 0.00 0.00 905.35 0.00 0.00 0.00 905.40 0.00 0.00 0.00 905.45 0.00 0.00 0.00 905.50 0.00 0.00 0.00 905.55 0.00 0.00 0.00 905.60 0.00 0.00 0.00 905.65 0.00 0.00 0.00 905.70 0.00 0.00 0.00 905.75 0.00 0.00 0.00 905.80 0.00 0.00 0.00 905.85 0.00 0.00 0.00 905.90 0.00 0.00 0.00 905.95 0.00 0.00 0.00 906.00 0.00 0.00 0.00 906.05 0.00 0.00 0.00 906.10 0.00 0.00 0.00 906.15 0.00 0.00 0.00 906.20 0.00 0.00 0.00 906.25 0.00 0.00 0.00 906.30 0.00 0.00 0.00 906.35 0.00 0.00 0.00 906.40 0.00 0.00 0.00 906.45 0.00 0.00 0.00 906.50 0.00 0.00 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 906.55 0.00 0.00 0.00 906.60 0.00 0.00 0.00 906.65 0.00 0.00 0.00 906.70 0.01 0.01 0.00 906.75 0.01 0.01 0.00 906.80 0.01 0.01 0.00 906.85 0.01 0.01 0.00 906.90 0.01 0.01 0.00 906.95 0.37 0.01 0.37 907.00 1.05 0.01 1.04 907.05 1.93 0.01 1.93 907.10 2.99 0.01 2.98 907.15 4.20 0.01 4.19 907.20 5.54 0.01 5.54 907.25 7.02 0.01 7.01 907.30 8.61 0.01 8.61 907.35 10.33 0.01 10.32 907.40 12.15 0.01 12.15 907.45 14.08 0.01 14.08 907.50 16.12 0.01 16.12 907.55 18.26 0.01 18.26 907.60 20.51 0.01 20.50 907.65 22.85 0.01 22.84 907.70 25.28 0.01 25.28 907.75 27.82 0.01 27.81 907.80 30.44 0.01 30.44 907.85 33.16 0.01 33.15 907.90 35.97 0.01 35.97 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 139HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond RG 2: rain garden Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 904.00 0 0 904.05 7 0 904.10 14 1 904.15 21 2 904.20 28 3 904.25 35 4 904.30 42 6 904.35 49 9 904.40 56 11 904.45 63 14 904.50 70 18 904.55 77 21 904.60 84 25 904.65 91 30 904.70 98 34 904.75 105 39 904.80 112 45 904.85 119 51 904.90 126 57 904.95 133 63 905.00 140 70 905.05 147 77 905.10 154 85 905.15 161 93 905.20 168 101 905.25 175 109 905.30 182 118 905.35 189 128 905.40 196 137 905.45 203 147 905.50 210 158 905.55 217 168 905.60 224 179 905.65 231 191 905.70 238 202 905.75 245 214 905.80 252 227 905.85 259 240 905.90 266 253 905.95 273 266 906.00 280 280 906.05 294 294 906.10 308 309 906.15 322 325 906.20 336 342 906.25 350 359 906.30 364 377 906.35 378 395 906.40 392 414 906.45 406 434 906.50 420 455 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 906.55 434 476 906.60 448 498 906.65 462 521 906.70 476 545 906.75 490 569 906.80 504 594 906.85 518 619 906.90 532 645 906.95 546 672 907.00 560 700 907.05 560 700 907.10 560 700 907.15 560 700 907.20 560 700 907.25 560 700 907.30 560 700 907.35 560 700 907.40 560 700 907.45 560 700 907.50 560 700 907.55 560 700 907.60 560 700 907.65 560 700 907.70 560 700 907.75 560 700 907.80 560 700 907.85 560 700 907.90 560 700 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 140HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG1: UG Infil Basin 1 Inflow Area = 0.372 ac, 53.49% Impervious, Inflow Depth = 5.28" for 100-YR event Inflow = 3.34 cfs @ 12.12 hrs, Volume= 0.164 af Outflow = 2.24 cfs @ 12.17 hrs, Volume= 0.164 af, Atten= 33%, Lag= 3.0 min Discarded = 0.02 cfs @ 12.17 hrs, Volume= 0.046 af Primary = 2.23 cfs @ 12.17 hrs, Volume= 0.118 af Routed to Link N Pro : North Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 897.88' @ 12.17 hrs Surf.Area= 906 sf Storage= 1,937 cf Plug-Flow detention time= 230.5 min calculated for 0.164 af (100% of inflow) Center-of-Mass det. time= 230.7 min ( 990.9 - 760.2 ) Volume Invert Avail.Storage Storage Description #1A 893.50' 936 cf 10.75'W x 55.50'L x 4.50'H Field A Z=0.5 3,386 cf Overall - 1,046 cf Embedded = 2,340 cf x 40.0% Voids #2A 894.00' 1,046 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside 1,982 cf Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 893.50'0.700 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 896.00'10.0" Round Culvert L= 38.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 896.00' / 895.20' S= 0.0211 '/' Cc= 0.900 n= 0.025 Corrugated metal, Flow Area= 0.55 sf Discarded OutFlow Max=0.02 cfs @ 12.17 hrs HW=897.87' (Free Discharge) 1=Exfiltration ( Controls 0.02 cfs) Primary OutFlow Max=2.22 cfs @ 12.17 hrs HW=897.87' (Free Discharge) 2=Culvert (Barrel Controls 2.22 cfs @ 4.08 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 141HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG1: UG Infil Basin 1 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +10.00' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +10.00' Row Adjustment +3.50' Header x 1 = 53.50' Row Length +12.0" End Stone x 2 = 55.50' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 60.00' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +10.00' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 1,046.3 cf Chamber Storage 3,386.0 cf Field - 1,046.3 cf Chambers = 2,339.7 cf Stone x 40.0% Voids = 935.9 cf Stone Storage Chamber Storage + Stone Storage = 1,982.2 cf = 0.046 af Overall Storage Efficiency = 58.5% Overall System Size = 55.50' x 10.75' x 4.50' 4 Chambers 125.4 cy Field 86.7 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 142HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG1: UG Infil Basin 1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 893.50 0.00 0.00 0.00 2.00 0.00 1 893.50 0.00 0.00 0.00 4.00 0.01 10 893.54 0.01 0.01 0.00 6.00 0.02 43 893.68 0.01 0.01 0.00 8.00 0.03 127 894.02 0.01 0.01 0.00 10.00 0.05 318 894.53 0.01 0.01 0.00 12.00 1.61 1,418 896.69 1.14 0.02 1.12 14.00 0.09 1,141 896.17 0.09 0.01 0.08 16.00 0.04 1,110 896.11 0.05 0.01 0.03 18.00 0.04 1,100 896.09 0.04 0.01 0.02 20.00 0.03 1,090 896.07 0.03 0.01 0.01 22.00 0.02 1,074 896.04 0.02 0.01 0.00 24.00 0.01 1,045 895.99 0.01 0.01 0.00 26.00 0.00 947 895.80 0.01 0.01 0.00 28.00 0.00 850 895.62 0.01 0.01 0.00 30.00 0.00 756 895.44 0.01 0.01 0.00 32.00 0.00 663 895.26 0.01 0.01 0.00 34.00 0.00 573 895.08 0.01 0.01 0.00 36.00 0.00 485 894.89 0.01 0.01 0.00 38.00 0.00 400 894.71 0.01 0.01 0.00 40.00 0.00 317 894.52 0.01 0.01 0.00 42.00 0.00 236 894.33 0.01 0.01 0.00 44.00 0.00 158 894.11 0.01 0.01 0.00 46.00 0.00 83 893.84 0.01 0.01 0.00 48.00 0.00 11 893.55 0.01 0.01 0.00 50.00 0.00 0 893.50 0.00 0.00 0.00 52.00 0.00 0 893.50 0.00 0.00 0.00 54.00 0.00 0 893.50 0.00 0.00 0.00 56.00 0.00 0 893.50 0.00 0.00 0.00 58.00 0.00 0 893.50 0.00 0.00 0.00 60.00 0.00 0 893.50 0.00 0.00 0.00 62.00 0.00 0 893.50 0.00 0.00 0.00 64.00 0.00 0 893.50 0.00 0.00 0.00 66.00 0.00 0 893.50 0.00 0.00 0.00 68.00 0.00 0 893.50 0.00 0.00 0.00 70.00 0.00 0 893.50 0.00 0.00 0.00 72.00 0.00 0 893.50 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 143HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG1: UG Infil Basin 1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 893.50 0.00 0.00 0.00 893.55 0.01 0.01 0.00 893.60 0.01 0.01 0.00 893.65 0.01 0.01 0.00 893.70 0.01 0.01 0.00 893.75 0.01 0.01 0.00 893.80 0.01 0.01 0.00 893.85 0.01 0.01 0.00 893.90 0.01 0.01 0.00 893.95 0.01 0.01 0.00 894.00 0.01 0.01 0.00 894.05 0.01 0.01 0.00 894.10 0.01 0.01 0.00 894.15 0.01 0.01 0.00 894.20 0.01 0.01 0.00 894.25 0.01 0.01 0.00 894.30 0.01 0.01 0.00 894.35 0.01 0.01 0.00 894.40 0.01 0.01 0.00 894.45 0.01 0.01 0.00 894.50 0.01 0.01 0.00 894.55 0.01 0.01 0.00 894.60 0.01 0.01 0.00 894.65 0.01 0.01 0.00 894.70 0.01 0.01 0.00 894.75 0.01 0.01 0.00 894.80 0.01 0.01 0.00 894.85 0.01 0.01 0.00 894.90 0.01 0.01 0.00 894.95 0.01 0.01 0.00 895.00 0.01 0.01 0.00 895.05 0.01 0.01 0.00 895.10 0.01 0.01 0.00 895.15 0.01 0.01 0.00 895.20 0.01 0.01 0.00 895.25 0.01 0.01 0.00 895.30 0.01 0.01 0.00 895.35 0.01 0.01 0.00 895.40 0.01 0.01 0.00 895.45 0.01 0.01 0.00 895.50 0.01 0.01 0.00 895.55 0.01 0.01 0.00 895.60 0.01 0.01 0.00 895.65 0.01 0.01 0.00 895.70 0.01 0.01 0.00 895.75 0.01 0.01 0.00 895.80 0.01 0.01 0.00 895.85 0.01 0.01 0.00 895.90 0.01 0.01 0.00 895.95 0.01 0.01 0.00 896.00 0.01 0.01 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 896.05 0.02 0.01 0.01 896.10 0.04 0.01 0.03 896.15 0.08 0.01 0.06 896.20 0.13 0.01 0.12 896.25 0.19 0.01 0.18 896.30 0.27 0.01 0.26 896.35 0.36 0.01 0.35 896.40 0.46 0.01 0.44 896.45 0.57 0.01 0.55 896.50 0.68 0.01 0.66 896.55 0.80 0.02 0.78 896.60 0.92 0.02 0.90 896.65 1.04 0.02 1.03 896.70 1.16 0.02 1.15 896.75 1.28 0.02 1.27 896.80 1.40 0.02 1.38 896.85 1.51 0.02 1.49 896.90 1.61 0.02 1.59 896.95 1.69 0.02 1.68 897.00 1.76 0.02 1.74 897.05 1.79 0.02 1.78 897.10 1.77 0.02 1.75 897.15 1.75 0.02 1.73 897.20 1.79 0.02 1.77 897.25 1.82 0.02 1.81 897.30 1.86 0.02 1.85 897.35 1.90 0.02 1.88 897.40 1.93 0.02 1.92 897.45 1.97 0.02 1.95 897.50 2.00 0.02 1.99 897.55 2.04 0.02 2.02 897.60 2.07 0.02 2.05 897.65 2.10 0.02 2.08 897.70 2.13 0.02 2.12 897.75 2.17 0.02 2.15 897.80 2.20 0.02 2.18 897.85 2.23 0.02 2.21 897.90 2.26 0.02 2.24 897.95 2.29 0.02 2.27 898.00 2.32 0.02 2.30 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 144HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG1: UG Infil Basin 1 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 893.50 597 0 893.55 600 12 893.60 603 24 893.65 607 36 893.70 610 48 893.75 613 60 893.80 617 73 893.85 620 85 893.90 623 98 893.95 627 110 894.00 630 123 894.05 633 137 894.10 637 153 894.15 640 170 894.20 643 188 894.25 647 206 894.30 650 226 894.35 654 245 894.40 657 265 894.45 660 286 894.50 664 307 894.55 667 329 894.60 671 350 894.65 674 373 894.70 678 395 894.75 681 418 894.80 684 441 894.85 688 464 894.90 691 488 894.95 695 512 895.00 698 536 895.05 702 561 895.10 705 585 895.15 709 610 895.20 712 635 895.25 716 660 895.30 719 686 895.35 723 711 895.40 726 737 895.45 730 762 895.50 733 788 895.55 737 814 895.60 740 841 895.65 744 867 895.70 747 893 895.75 751 919 895.80 754 946 895.85 758 972 895.90 761 999 895.95 765 1,026 896.00 769 1,052 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 896.05 772 1,079 896.10 776 1,106 896.15 779 1,132 896.20 783 1,159 896.25 786 1,186 896.30 790 1,212 896.35 794 1,239 896.40 797 1,266 896.45 801 1,292 896.50 804 1,319 896.55 808 1,345 896.60 812 1,371 896.65 815 1,397 896.70 819 1,423 896.75 823 1,449 896.80 826 1,475 896.85 830 1,501 896.90 833 1,526 896.95 837 1,551 897.00 841 1,576 897.05 844 1,601 897.10 848 1,625 897.15 852 1,649 897.20 855 1,673 897.25 859 1,696 897.30 863 1,719 897.35 867 1,741 897.40 870 1,763 897.45 874 1,784 897.50 878 1,803 897.55 881 1,821 897.60 885 1,838 897.65 889 1,856 897.70 893 1,874 897.75 896 1,892 897.80 900 1,910 897.85 904 1,928 897.90 907 1,946 897.95 911 1,964 898.00 915 1,982 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 145HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Pond UG3: UG Infil Basin 3 Inflow Area = 0.519 ac, 33.14% Impervious, Inflow Depth = 4.43" for 100-YR event Inflow = 4.06 cfs @ 12.12 hrs, Volume= 0.192 af Outflow = 4.06 cfs @ 12.13 hrs, Volume= 0.192 af, Atten= 0%, Lag= 0.0 min Discarded = 0.02 cfs @ 12.13 hrs, Volume= 0.060 af Primary = 4.05 cfs @ 12.13 hrs, Volume= 0.132 af Routed to Link S Pro : South Proposed Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 883.88' @ 12.13 hrs Surf.Area= 814 sf Storage= 1,662 cf Plug-Flow detention time= 360.6 min calculated for 0.192 af (100% of inflow) Center-of-Mass det. time= 371.1 min ( 1,146.1 - 775.0 ) Volume Invert Avail.Storage Storage Description #1A 879.00' 787 cf 10.75'W x 46.00'L x 4.50'H Field A Z=0.5 2,830 cf Overall - 863 cf Embedded = 1,967 cf x 40.0% Voids #2A 879.50' 863 cf CMP Round 42 x 4 Inside #1 Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 8.75' Header x 9.62 sf x 1 = 84.2 cf Inside #3 883.50' 36 cf Custom Stage Data (Prismatic) Listed below (Recalc) 1,686 cf Total Available Storage Storage Group A created with Chamber Wizard Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 883.50 20 0 0 884.30 70 36 36 Device Routing Invert Outlet Devices #1 Discarded 879.00'0.450 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 876.00' #2 Primary 883.54'24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.02 cfs @ 12.13 hrs HW=883.88' (Free Discharge) 1=Exfiltration ( Controls 0.02 cfs) Primary OutFlow Max=4.03 cfs @ 12.13 hrs HW=883.88' (Free Discharge) 2=Orifice/Grate (Weir Controls 4.03 cfs @ 1.90 fps) Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 146HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Pond UG3: UG Infil Basin 3 - Chamber Wizard Field A Chamber Model = CMP Round 42 (Round Corrugated Metal Pipe) Effective Size= 42.0"W x 42.0"H => 9.62 sf x 20.00'L = 192.4 cf Overall Size= 42.0"W x 42.0"H x 20.00'L Row Length Adjustment= +0.50' x 9.62 sf x 2 rows 42.0" Wide + 21.0" Spacing = 63.0" C-C Row Spacing 2 Chambers/Row x 20.00' Long +0.50' Row Adjustment +3.50' Header x 1 = 44.00' Row Length +12.0" End Stone x 2 = 46.00' Base Length 2 Rows x 42.0" Wide + 21.0" Spacing x 1 + 12.0" Side Stone x 2 = 10.75' Base Width 6.0" Stone Base + 42.0" Chamber Height + 6.0" Stone Cover = 4.50' Field Height 0.5 '/' Side-Z x Height = 27.0" Flare/Side Base Length + Flare x 2 = 50.50' Top Length Base Width + Flare x 2 = 15.25' Top Width 4 Chambers x 192.4 cf +0.50' Row Adjustment x 9.62 sf x 2 Rows + 8.75' Header x 9.62 sf = 863.5 cf Chamber Storage 2,830.2 cf Field - 863.5 cf Chambers = 1,966.7 cf Stone x 40.0% Voids = 786.7 cf Stone Storage Chamber Storage + Stone Storage = 1,650.2 cf = 0.038 af Overall Storage Efficiency = 58.3% Overall System Size = 46.00' x 10.75' x 4.50' 4 Chambers 104.8 cy Field 72.8 cy Stone Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 147HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Pond UG3: UG Infil Basin 3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 879.00 0.00 0.00 0.00 2.00 0.00 1 879.01 0.00 0.00 0.00 4.00 0.01 15 879.07 0.01 0.01 0.00 6.00 0.02 64 879.32 0.01 0.01 0.00 8.00 0.02 155 879.70 0.01 0.01 0.00 10.00 0.05 335 880.22 0.01 0.01 0.00 12.00 1.85 1,657 883.74 1.85 0.02 1.83 14.00 0.11 1,652 883.57 0.11 0.02 0.10 16.00 0.06 1,651 883.55 0.06 0.02 0.04 18.00 0.05 1,651 883.55 0.05 0.02 0.03 20.00 0.03 1,651 883.55 0.03 0.02 0.02 22.00 0.02 1,651 883.54 0.02 0.02 0.00 24.00 0.01 1,631 883.44 0.02 0.02 0.00 26.00 0.00 1,515 883.05 0.02 0.02 0.00 28.00 0.00 1,404 882.73 0.01 0.01 0.00 30.00 0.00 1,299 882.47 0.01 0.01 0.00 32.00 0.00 1,199 882.24 0.01 0.01 0.00 34.00 0.00 1,104 882.02 0.01 0.01 0.00 36.00 0.00 1,013 881.81 0.01 0.01 0.00 38.00 0.00 926 881.62 0.01 0.01 0.00 40.00 0.00 843 881.43 0.01 0.01 0.00 42.00 0.00 764 881.25 0.01 0.01 0.00 44.00 0.00 688 881.08 0.01 0.01 0.00 46.00 0.00 615 880.91 0.01 0.01 0.00 48.00 0.00 545 880.74 0.01 0.01 0.00 50.00 0.00 479 880.58 0.01 0.01 0.00 52.00 0.00 415 880.43 0.01 0.01 0.00 54.00 0.00 354 880.27 0.01 0.01 0.00 56.00 0.00 296 880.12 0.01 0.01 0.00 58.00 0.00 241 879.96 0.01 0.01 0.00 60.00 0.00 189 879.81 0.01 0.01 0.00 62.00 0.00 139 879.64 0.01 0.01 0.00 64.00 0.00 93 879.46 0.01 0.01 0.00 66.00 0.00 50 879.25 0.01 0.01 0.00 68.00 0.00 10 879.05 0.01 0.01 0.00 70.00 0.00 0 879.00 0.00 0.00 0.00 72.00 0.00 0 879.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 148HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Discharge for Pond UG3: UG Infil Basin 3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 879.00 0.00 0.00 0.00 879.10 0.01 0.01 0.00 879.20 0.01 0.01 0.00 879.30 0.01 0.01 0.00 879.40 0.01 0.01 0.00 879.50 0.01 0.01 0.00 879.60 0.01 0.01 0.00 879.70 0.01 0.01 0.00 879.80 0.01 0.01 0.00 879.90 0.01 0.01 0.00 880.00 0.01 0.01 0.00 880.10 0.01 0.01 0.00 880.20 0.01 0.01 0.00 880.30 0.01 0.01 0.00 880.40 0.01 0.01 0.00 880.50 0.01 0.01 0.00 880.60 0.01 0.01 0.00 880.70 0.01 0.01 0.00 880.80 0.01 0.01 0.00 880.90 0.01 0.01 0.00 881.00 0.01 0.01 0.00 881.10 0.01 0.01 0.00 881.20 0.01 0.01 0.00 881.30 0.01 0.01 0.00 881.40 0.01 0.01 0.00 881.50 0.01 0.01 0.00 881.60 0.01 0.01 0.00 881.70 0.01 0.01 0.00 881.80 0.01 0.01 0.00 881.90 0.01 0.01 0.00 882.00 0.01 0.01 0.00 882.10 0.01 0.01 0.00 882.20 0.01 0.01 0.00 882.30 0.01 0.01 0.00 882.40 0.01 0.01 0.00 882.50 0.01 0.01 0.00 882.60 0.01 0.01 0.00 882.70 0.01 0.01 0.00 882.80 0.02 0.02 0.00 882.90 0.02 0.02 0.00 883.00 0.02 0.02 0.00 883.10 0.02 0.02 0.00 883.20 0.02 0.02 0.00 883.30 0.02 0.02 0.00 883.40 0.02 0.02 0.00 883.50 0.02 0.02 0.00 883.60 0.32 0.02 0.30 883.70 1.33 0.02 1.31 883.80 2.74 0.02 2.72 883.90 4.46 0.02 4.44 884.00 6.43 0.02 6.41 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 884.10 8.63 0.02 8.61 884.20 11.04 0.02 11.02 884.30 13.21 0.02 13.19 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 149HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond UG3: UG Infil Basin 3 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 879.00 495 0 879.10 500 20 879.20 506 40 879.30 512 60 879.40 517 81 879.50 523 102 879.60 529 127 879.70 535 156 879.80 541 187 879.90 546 220 880.00 552 255 880.10 558 291 880.20 564 328 880.30 570 366 880.40 576 405 880.50 582 445 880.60 588 486 880.70 594 527 880.80 600 569 880.90 606 611 881.00 612 654 881.10 618 697 881.20 624 741 881.30 630 785 881.40 636 829 881.50 643 874 881.60 649 918 881.70 655 962 881.80 661 1,007 881.90 667 1,051 882.00 674 1,095 882.10 680 1,139 882.20 686 1,182 882.30 693 1,225 882.40 699 1,268 882.50 705 1,310 882.60 712 1,351 882.70 718 1,391 882.80 725 1,429 882.90 731 1,466 883.00 738 1,499 883.10 744 1,529 883.20 750 1,559 883.30 757 1,589 883.40 764 1,620 883.50 790 1,650 883.60 796 1,652 883.70 803 1,655 883.80 809 1,659 883.90 815 1,663 884.00 821 1,668 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 884.10 828 1,673 884.20 834 1,679 884.30 840 1,686 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 150HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Ex: North Existing Inflow Area = 0.841 ac, 7.02% Impervious, Inflow Depth = 3.34" for 100-YR event Inflow = 5.37 cfs @ 12.13 hrs, Volume= 0.234 af Primary = 5.37 cfs @ 12.13 hrs, Volume= 0.234 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 151HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Ex: North Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.01 0.00 0.01 7.00 0.01 0.00 0.01 8.00 0.01 0.00 0.01 9.00 0.01 0.00 0.01 10.00 0.02 0.00 0.02 11.00 0.05 0.00 0.05 12.00 2.17 0.00 2.17 13.00 0.42 0.00 0.42 14.00 0.17 0.00 0.17 15.00 0.15 0.00 0.15 16.00 0.09 0.00 0.09 17.00 0.08 0.00 0.08 18.00 0.07 0.00 0.07 19.00 0.06 0.00 0.06 20.00 0.05 0.00 0.05 21.00 0.04 0.00 0.04 22.00 0.03 0.00 0.03 23.00 0.02 0.00 0.02 24.00 0.01 0.00 0.01 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 152HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link N Pro: North Proposed Inflow Area = 0.902 ac, 22.06% Impervious, Inflow Depth = 3.35" for 100-YR event Inflow = 5.22 cfs @ 12.13 hrs, Volume= 0.252 af Primary = 5.22 cfs @ 12.13 hrs, Volume= 0.252 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 153HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link N Pro: North Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.01 0.00 0.01 12.00 2.35 0.00 2.35 13.00 0.49 0.00 0.49 14.00 0.18 0.00 0.18 15.00 0.16 0.00 0.16 16.00 0.08 0.00 0.08 17.00 0.07 0.00 0.07 18.00 0.06 0.00 0.06 19.00 0.05 0.00 0.05 20.00 0.04 0.00 0.04 21.00 0.03 0.00 0.03 22.00 0.02 0.00 0.02 23.00 0.02 0.00 0.02 24.00 0.01 0.00 0.01 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 154HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Ex: South Existing Inflow Area = 0.730 ac, 24.38% Impervious, Inflow Depth = 4.07" for 100-YR event Inflow = 5.37 cfs @ 12.13 hrs, Volume= 0.247 af Primary = 5.37 cfs @ 12.13 hrs, Volume= 0.247 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 155HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Ex: South Existing Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.01 0.00 0.01 4.00 0.01 0.00 0.01 5.00 0.01 0.00 0.01 6.00 0.02 0.00 0.02 7.00 0.02 0.00 0.02 8.00 0.02 0.00 0.02 9.00 0.03 0.00 0.03 10.00 0.05 0.00 0.05 11.00 0.13 0.00 0.13 12.00 2.36 0.00 2.36 13.00 0.40 0.00 0.40 14.00 0.16 0.00 0.16 15.00 0.14 0.00 0.14 16.00 0.08 0.00 0.08 17.00 0.07 0.00 0.07 18.00 0.06 0.00 0.06 19.00 0.05 0.00 0.05 20.00 0.05 0.00 0.05 21.00 0.04 0.00 0.04 22.00 0.03 0.00 0.03 23.00 0.02 0.00 0.02 24.00 0.01 0.00 0.01 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 156HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Summary for Link S Pro: South Proposed Inflow Area = 0.680 ac, 32.94% Impervious, Inflow Depth = 3.00" for 100-YR event Inflow = 5.27 cfs @ 12.13 hrs, Volume= 0.170 af Primary = 5.27 cfs @ 12.13 hrs, Volume= 0.170 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Cates Fine Homes - Staal As-built MSE 24-hr 3 100-YR Rainfall=7.47"20220719_CFH03_Staal_Record Drawing Printed 7/19/2022Prepared by Élan Design Lab Page 157HydroCAD® 10.10-7a s/n 07437 © 2021 HydroCAD Software Solutions LLC Hydrograph for Link S Pro: South Proposed Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 3.00 0.00 0.00 0.00 4.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 6.00 0.00 0.00 0.00 7.00 0.00 0.00 0.00 8.00 0.00 0.00 0.00 9.00 0.00 0.00 0.00 10.00 0.00 0.00 0.00 11.00 0.00 0.00 0.00 12.00 2.00 0.00 2.00 13.00 0.36 0.00 0.36 14.00 0.13 0.00 0.13 15.00 0.11 0.00 0.11 16.00 0.05 0.00 0.05 17.00 0.05 0.00 0.05 18.00 0.04 0.00 0.04 19.00 0.03 0.00 0.03 20.00 0.02 0.00 0.02 21.00 0.01 0.00 0.01 22.00 0.01 0.00 0.01 23.00 0.00 0.00 0.00 24.00 0.00 0.00 0.00 25.00 0.00 0.00 0.00 26.00 0.00 0.00 0.00 27.00 0.00 0.00 0.00 28.00 0.00 0.00 0.00 29.00 0.00 0.00 0.00 30.00 0.00 0.00 0.00 31.00 0.00 0.00 0.00 32.00 0.00 0.00 0.00 33.00 0.00 0.00 0.00 34.00 0.00 0.00 0.00 35.00 0.00 0.00 0.00 36.00 0.00 0.00 0.00 37.00 0.00 0.00 0.00 38.00 0.00 0.00 0.00 39.00 0.00 0.00 0.00 40.00 0.00 0.00 0.00 41.00 0.00 0.00 0.00 42.00 0.00 0.00 0.00 43.00 0.00 0.00 0.00 44.00 0.00 0.00 0.00 45.00 0.00 0.00 0.00 46.00 0.00 0.00 0.00 47.00 0.00 0.00 0.00 48.00 0.00 0.00 0.00 49.00 0.00 0.00 0.00 50.00 0.00 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 51.00 0.00 0.00 0.00 52.00 0.00 0.00 0.00 53.00 0.00 0.00 0.00 54.00 0.00 0.00 0.00 55.00 0.00 0.00 0.00 56.00 0.00 0.00 0.00 57.00 0.00 0.00 0.00 58.00 0.00 0.00 0.00 59.00 0.00 0.00 0.00 60.00 0.00 0.00 0.00 61.00 0.00 0.00 0.00 62.00 0.00 0.00 0.00 63.00 0.00 0.00 0.00 64.00 0.00 0.00 0.00 65.00 0.00 0.00 0.00 66.00 0.00 0.00 0.00 67.00 0.00 0.00 0.00 68.00 0.00 0.00 0.00 69.00 0.00 0.00 0.00 70.00 0.00 0.00 0.00 71.00 0.00 0.00 0.00 72.00 0.00 0.00 0.00 800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 4506912" TECHCO BAND ANGLES 1/2" DIA. BOLT12" RISER BAND DETAILNOT TO SCALEPLAIN END CMP RISER PIPECONNECTION DETAIL7 1/2" TECHCO SHOWN - MAY VARYSTUB HEIGHT2'-0" RECOMMENDED12" MIN.MAINLINEPIPERISEREXTENSIONFLAT BAND SHOWN,MAY VARY (NOGASKET)GENERAL NOTES:1.DELIVERED BAND STYLE AND FASTENER TYPE MAY VARY BY FABRICATION PLANT.2.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.3.BAND MATERIAL AND GAGE TO BE SAME AS RISER MATERIAL.4.IF RISER HAS A HEIGHT OF COVER OF 10' OR MORE, USE A SLIP JOINT.5.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" 2-PIECES6.ALL RISER JOINT COMPONENTS WILL BE FIELD ASSEMBLED.7.MANHOLE RISERS IN APPLICATIONS WHERE TRAFFIC LOADS ARE IMPOSED REQUIRE SPECIAL DESIGN CONSIDERATIONS.8.DIMENSIONS SUBJECT TO MANUFACTURING TOLERANCES.ELEVATION VIEWOF CMP AND RISERHUGGERBANDNO GASKETCONNECTION DETAIL(SBBS)2 2/3"x1/2" RE-ROLLED END HEL-COR PIPEH-12 HUGGER BAND DETAILNOT TO SCALEGENERAL NOTES:1.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.2.BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY.3.BANDS ARE SHAPED TO MATCH THE PIPE-ARCH WHEN APPLICABLE.4.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" THRU 96" 2-PIECES·102" THRU 144" 3-PIECES5.BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.6.ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2/3"x1/2"7.DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.8.ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).SINGLE BAR,BOLT AND STRAP (SBBS)12 1/8"10 1/4"RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFFC3RSODATE:PROJECT No.:653622SEQ. No.:030FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 9/23/20209 MANHOLE CAP DETAILNOT TO SCALE8"11" TYP.2" COVER TYP.1" GAP (TYP. ALL SIDES)NOTES:1.DESIGN IN ACCORDANCE WITH AASHTO, 17thEDITION AND ACI 350.2.DESIGN LOAD HS25.3.EARTH COVER = 1' MAX.4.CONCRETE STRENGTH = 4,000 psi5.REINFORCING STEEL = ASTM A615, GRADE 60.6.PROVIDE ADDITIONAL REINFORCING AROUNDOPENINGS EQUAL TO THE BARS INTERRUPTED,HALF EACH SIDE. ADDITIONAL BARS TO BE IN THESAME PLANE.AA 2" COVER(TYP)SECTION VIEWROUND OPTION PLAN VIEWSQUARE OPTION PLAN VIEWØ CMP RISERINTERRUPTED BARREPLACEMENT,SEE NOTE 6.STANDARDREINFORCING,SEE TABLEOPENING INPROTECTIONSLAB FORACESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.AINTERRUPTED BARREPLACEMENT, SEENOTE 6.BOPENING INPROTECTIONSLAB FORACCESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.STANDARDREINFORCING,SEE TABLEGASKET MATERIALSUFFICIENT TO PREVENTSLAB FROM BEARING ONRISER TO BE PROVIDED BYCONTRACTOR.2" COVER(TYP.)ØBREINFORCING TABLEØ CMPRISERAB ØREINFORCING**BEARINGPRESSURE(PSF)24"4'Ø4'x4'26"#5 @ 10" OCEW#5 @ 10" OCEW2,5401,90030"4'-6"Ø4'-6" x 4'-6"32"#5 @ 10" OCEW#5 @ 9" OCEW2,2601,67036"5'Ø5' x 5'38"#5 @ 9" OCEW#5 @ 8" OCEW2,0601,50042"5'-6"Ø5'-6" x 5'-6"44"#5 @ 8" OCEW#5 @ 8" OCEW1,4901,37048"6'Ø6' x 6'50"#5 @ 7" OCEW#5 @ 7" OCEW1,2101,270** ASSUMED SOIL BEARING CAPACITY1'-0"A2 " CO VER ( T Y P . ) 2 " COVER (T YP )7.TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS AMINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIREDTO MAINTAIN BAR COVER.8.PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED ANDINSTALLED BY CONTRACTOR.9.DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LANDSURVEYORS, ENDWELL, NY.ØB36"Ø MAX., HS-25 ACCESS CASTINGWITH GRADE RINGS AS REQUIRED, TOBE PROVIDED AND INSTALLED BYCONTRACTOR. MAY BE TOP MOUNTED(AS SHOWN) OR RECESSED.CMPPROTECTIONSLABVARIESRIM/FINISHEDGRADEACCESS CASTING NOT SUPPLIED BY CONTECH800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFFC5RSODATE:PROJECT No.:653622SEQ. No.:030FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com9/23/20209REVISION DESCRIPTIONDATEMARKBY TOTAL FABRICATION HOURSFITTINGTARGETFABRICATIONTIME (HOURS)INITIALSACTUALFABRICATIONTIME (HOURS)A5.37B2.7C2.97D6.46TOTAL17.5800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFFHRSODATE:PROJECT No.:653622SEQ. No.:030FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 99/23/2020 PLAN VIEWELEVATION VIEWPART ASCALE: 1" = 5'3'-9"3'-6"5'-6"8'-9"5'-3"3'-9"3'-9"3'-9"3'-6"1'-9"5'-3"RIGHT VIEWLEFT VIEW2'-11"2'-0"2'-5"12"Ø STUB A11'-7"6"PLAN VIEWELEVATION VIEWPART BSCALE: 1" = 5'RIGHT VIEWLEFT VIEW30"Ø RISER B120'-0"6'-3"12"Ø STUB B26'-9"12'-0"1'-7"6" 3'-9" 1'-0"FABRICATION HOURS - PART BTARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS2.7--------------------TOTAL-----FABRICATION HOURS - PART ATARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS5.37--------------------TOTAL-----800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFF1RSODATE:PROJECT No.:653622SEQ. No.:030FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3PROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 99/23/2020ALL PIPE ENDS MUST BE MATCH MARKED PLAN VIEWELEVATION VIEWPART CSCALE: 1" = 5'13'-6"RIGHT VIEWLEFT VIEW42"Ø REINFORCED BULKHEAD C1SEE DETAIL SHEET F3PLAN VIEWELEVATION VIEWPART DSCALE: 1" = 5'RIGHT VIEWLEFT VIEW72"Ø WEIR PLATE D2w/ 6"Ø DRAW DOWN D2ASEE DETAIL SHEET F3NO REINFORCEMENT REQUIRED42"Ø REINFORCED BULKHEAD D1SEE DETAIL SHEET F310'-0"FABRICATION HOURS - PART DTARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS6.46--------------------TOTAL-----FABRICATION HOURS - PART CTARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS2.97--------------------TOTAL-----800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFF2RSODATE:PROJECT No.:653622SEQ. No.:03042"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3FABRICATIONCONTECHDRAWINGThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comPROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEREVISION DESCRIPTIONDATEMARKBY 9/23/20209ALL PIPE ENDS MUST BE MATCH MARKED CORRUGATEDSTEEL PIPE (CSP)12GA MIN. STEEL PLATEBULKHEAD3/32TYP3/322-102-10DETAIL ADETAIL B2"x2"x1/4" ANGLE OPTIONREINFORCEMENT MEMBERS SHALL BEORIENTED AS SHOWN TO OBTAININTENDED STIFFNESS. REINFORCINGMEMBER CHOICE BASED ON PLANTAVAILABILITY AND LEAD TIMES. SEEFABRICATION PART DETAILS.3/32ELEVATION VIEWDRAW DOWN PIPEPART D2ASCALE: 1" = 2'1/162'-0"SYSTEM INV. = 879.50WEIR ELEV. = 881.501/161'-0"3'-6"42"Ø MAINLINE PIPE = 883.00800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069SIDE VIEWELEVATION VIEW (OUTSIDE OF THE PIPE)BULKHEADPLACED ONEND OF CSPSEE DETAIL APLACE REINFORCEMENTON OUTSIDE OF SYSTEMAND EXTEND MEMBERPAST PIPE EDGEREINFORCINGMEMBER44"Ø O.D.BULKHEADREINFORCEMENT LENGTH TABLEMARKAB# REQ'DLENGTH3'-3"3'-8"3A42"Ø CSP BULKHEAD DETAIL (1'-0" MIN TO 10'-0" MAX HEIGHT OF COVER)NOT TO SCALESEEDETAIL B1012"±BA1012"NOTES:1.BULKHEAD DESIGNED FOR HS-20 AND HS-25 LOADING2.ACTIVE LATERAL EARTH COEFFICIENT (ka) IS ASSUMED TO BE 0.403.GROUND WATER ELEVATION SHOULD NOT EXCEED THE TOP OF THE CSP4.CONSTRUCTION LOADS NEED TO BE REVIEWED ON A PROJECT SPECIFIC BASIS5.IF PROJECT REQUIREMENTS EXCEED ABOVE CRITERIA, THE DESIGN MAY CHANGE6.BULKHEAD PLATE TO EXTEND PAST THE O.D. OF THE CSP FOR EXTERIOR WELD7.IF A STUB IS REQUIRED ON A BULKHEAD, SIZE AND LOCATION DETAILS WILL BE PROVIDED ON THEFABRICATION DRAWING SET AND REINFORCEMENT SHALL BE TRIMMED TO THE STUB8.ALL METALLIC COATINGS AFFECTED BY MANUFACTURING FABRICATION SHALL BE REPAIRED PER AASHTO M 36SECTION 11 REQUIREMENTS (E.G. ZINC-RICH PAINT ON ALL WELDS). IF POLYMER COATINGS ARE USED THEREPAIR OF DAMAGED COATINGS WILL BE IN CONFORMANCE WITH AASHTO M 245 SECTION 11 REQUIREMENTS9.THE BULKHEAD IS DESIGNED FOR NCSPA DESIGN METHODOLOGY42"Ø I.D. CSPEND VIEWWEIR PLATE DETAILPART D2SCALE: 1" = 3'1/16Ø42"12 GA. STEELBULKHEAD6"Ø PERFORATEDDRAW DOWN PIPE D2A6"Ø ORIFICEELEV = 879.50WEIRELEV = 881.502'-0"TOP OF PIPEELEV = 883.003'-6"RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-30-CMP DETENTION\DRAWINGS\653622-030-CMP CONFAB.DWG 9/24/2020 11:36 AM SHEET NO.:OFF3RSODATE:PROJECT No.:653622SEQ. No.:03042"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-030STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN3FABRICATIONCONTECHDRAWINGThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 9/23/20209PROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEALL BULKHEAD PLATE MATERIAL IS TO BE ALUMINIZED TYPE II (ALT2)ALL REINFORCING TO BE GALVANIZED ANGLE 800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069DBDECA42"Ø BULKHEADTYP. OF 253'-6"8'-9"2'-6"10"Ø STUB A1 2'-6"30"Ø RISER C210'-0"6"Ø STUB C31'-9"14'-6"42"Ø WEIR PLATE C4w/ 6"Ø DRAW DOWN C4ARSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFC1RSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comASSEMBLYSCALE: 1" = 10'PIPE STORAGE: 1,046 CFSTRUCTURAL BACKFILL STORAGE: 661 CFTOTAL STORAGE PROVIDED: 1,707 CFLOADING: H20PIPE INV. = 893.50'±9REVISION DESCRIPTIONDATEMARKBY NOTES·ALL FITTINGS AND REINFORCEMENT SHALL COMPLYWITH ASTM A998.·ALL RISERS AND STUBS ARE 223" x 12" CORRUGATIONAND 16 GAGE UNLESS OTHERWISE NOTED.THIS FABRICATION DRAWING INCLUDES (9) PAGESSYSTEM SPECIFICATIONS ARE AS FOLLOWS:·PIPE STORAGE = 1,046 CF·MAINLINE PIPE GAGE = 16·WALL TYPE = PERFORATED, SOLID·DIAMETER = 42"·FINISH = ALT2·CORRUGATION = 2 2/3x1/2BAND, TYPICALSEE DETAIL SHEET FC39/22/2020STUB INFORMATIONPIECESTUB INVERTSYSTEMINVERT10"Ø STUB A1896.00893.506"Ø STUB C3896.00893.50RISER INFORMATIONPIECERIM ELEV.SYSTEMINVERT30"Ø RISER C2898.60893.50KEY SOLIDPERFORATED 1.50"2.8"COIL WIDTHOPEN AREA = 3.76 SQ IN/SQ FT2 2/3" x 1/2" CORRUGATION - STEEL AND ALUMINUM CMPEDGE SPACING EQUAL ON BOTH SIDES2.05"NOTES:1.PERFORATIONS MEET AASHTO AND ASTM SPECIFICATIONS.2.PERFORATION OPEN AREA PER SQUARE FOOT OF PIPE IS BASEDON THE NOMINAL DIAMETER AND LENGTH OF PIPE.3.DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.4.ALL HOLES 3/8"Ø.EXFILTRATION AREASTANDARD PERFORATION PATTERNSAPPROXIMATE AREA PER LINEAR FOOT OF PIPEPIPECORRUGATION PATTERN2 2/3" x 1/2"3" x 1"5" x 1"ULTRA FLO42"Ø42.7 SQ. IN.45.2 SQ. IN.NOTES:·GAGE AND COATING LIMITATIONS APPLY. 5" x 1" IS NOT AVAILABLE INALUMINUM.·DIMENSIONS SUBJECT TO MANUFACTURER'S TOLERANCES.TYPICAL PERFORATION DETAILNOT TO SCALE800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comRSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFC2RSODATE:PROJECT No.:653622SEQ. No.:010REVISION DESCRIPTIONDATEMARKBY 9/22/20209FABRICATION BoMFITTINGTYPEQTYØCORRUGATIONGAUGEFINISHWALL TYPELENGTHTOTALAMANIFOLD - 2ELBOW (S)1422 2/3X1/216ALT2PERFORATED12.7512.75A1STUB1101 1/2X1/416ALT2SOLID1.921.92BPIPE1422 2/3X1/216ALT2PERFORATED2323B1BULKHEAD14212ALT2SOLIDCPIPE1422 2/3X1/216ALT2SOLID14.514.5C1BULKHEAD14212ALT2SOLIDC2RISER1302 2/3X1/216ALT2SOLID3.353.35C3STUB161 1/2X1/416ALT2SOLID1.421.42C4WEIR PLATE14212ALT2SOLIDC4ADRAW DOWNELBOW161 1/2X1/416ALT2PERFORATED2.52.5DPIPE2422 2/3X1/216ALT2PERFORATED2550EPIPE1422 2/3X1/216ALT2PERFORATED8.58.5BAND12 HUGGER542W/BAR BOLT &STRAP16ALT2PE LINER2RL5.08X1501524 800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069HUGGERBANDNO GASKETCONNECTION DETAIL(SBBS)2 2/3"x1/2" RE-ROLLED END HEL-COR PIPEH-12 HUGGER BAND DETAILNOT TO SCALEGENERAL NOTES:1.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.2.BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY.3.BANDS ARE SHAPED TO MATCH THE PIPE-ARCH WHEN APPLICABLE.4.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" THRU 96" 2-PIECES·102" THRU 144" 3-PIECES5.BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.6.ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2/3"x1/2"7.DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.8.ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).SINGLE BAR,BOLT AND STRAP (SBBS)12 1/8"10 1/4"RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFC3RSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 9/22/20209 1MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE TRENCH WIDTH IS THE MINIMUM AMOUNT REQUIRED FOR PROPER INSTALLATION AND TO SUPPORT HORIZONTAL PRESSURE FROMTHE PIPE. THE MANUFACTURER'S SUGGESTED MINIMUM VALUE IS: 1.5D + 12".1aMINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE:3.0D BUT NO LESS THAN D + 4'0".2FOUNDATION SHALL BE WELL CONSOLIDATED & STABLE, CAPABLE OF SUPPORTING FILL MATERIAL LOAD.3OPEN-GRADED GRANULAR BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THEBOTTOM OF THE PIPE, 4" TO 6" IN DEPTH. SUGGESTED PARTICLE SIZE OF 1/2 CORRUGATION DEPTH.4CORRUGATED STEEL PIPE (CSP / HEL-COR).5HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION.5aTHE BACKFILL MATERIAL SHALL BE A FREE-DRAINING, ANGULAR, WASHED-STONE PER AASHTO M 43 SIZE #3 WITH A ½” - 2” PARTICLESIZE OR APPROVED EQUAL. MATERIAL SHALL BE PLACED IN 12" MAXIMUM LIFTS AND SHALL BE WORKED INTO THE PIPE HAUNCHES BYMEANS OF SHOVEL-SLICING, RODDING, AIR-TAMPER, VIBRATORY PLATE OR OTHER EFFECTIVE METHODS. COMPACTION IS CONSIDEREDADEQUATE WHEN A DENSITY EQUIVALENT TO 90% STANDARD PROCTOR IS ACHIEVED OR WHEN NO FURTHER YIELDING OF THEMATERIAL IS OBSERVED UNDER THE COMPACTOR OR UNDER FOOT. THE PROJECT ENGINEER OR HIS REPRESENTATIVE MUST BESATISFIED WITH THE LEVEL OF COMPACTION. INADEQUATE COMPACTION CAN LEAD TO EXCESSIVE PIPE DEFLECTIONS ANDSETTLEMENT OF THE SOILS OVER THE SYSTEM. BACKFILL SHALL BE PLACED SUCH THAT THERE IS NO MORE THAN A TWO-LIFTDIFFERENTIAL BETWEEN THE SIDES OF ANY PIPE IN THE SYSTEM AT ALL TIMES DURING THE BACKFILL PROCESS. BACKFILL SHALL BEADVANCED ALONG THE LENGTH OF THE SYSTEM AT THE SAME RATE TO AVOID DIFFERENTIAL LOADING ON ANY PIPES IN THE SYSTEM.6INITIAL OPEN GRADED GRANULAR BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE).SEE TABLE ABOVE.6aTOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OFFLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT.7FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONSPER THE ENGINEER OF RECORD.NOTES:·GEOTEXTILE SHOULD BE USED TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER).·FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA. / 2 BUT NO LESS THAN12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER.·CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1).FINAL BACKFILLGRANULAR BACKFILL DIA M E T E R ( D )IN SITUDIAMETERMIN.COVERCORR.PROFILE6"-10"12"1 1/2" x 1/4"12"-48"12"2 2/3" x 1/2"54"-96"12"3" x 1", 5" x 1"102"-144"18"3" x 1", 5" x 1"LIMITS OF DRAIN ROCK MAY BEPLACED BELOW PIPE AS DEFINEDBY ENGINEER OF RECORD.FOUNDATION SPEC STILLAPPLIES AND BEDDING WILL BETHE FIRST 4" TO 6" BELOWINVERT4TYPICAL BACKFILL DETAILNOT TO SCALEEMBANKMENT CONDITIONTRENCH CONDITION66aBEDDINGFOUNDATIONPIPE EMBEDMENT 5a7532INITIAL FILL ENVELOPE 1 1a800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFC4RSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comCONSTRUCTION LOADSFOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRA AMOUNT OF COMPACTED COVER MAY BE REQUIRED OVERTHE TOP OF THE PIPE. THE HEIGHT-OF-COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW.THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHEDGRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC.PIPE SPAN,INCHES18-50MINIMUM COVER (FT)AXLE LOADS(kips)50-7575-110110-15012-422.02.53.03.04.03.53.048-723.03.078-1203.54.04.04.54.54.0126-1443.5*MINIMUM COVER MAY VARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONALCOVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TOTHE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. HEIGHT OFCOVERTEMPORARY COVER FORCONSTRUCTION LOADSFINISHEDGRADE CONSTRUCTION LOADING DIAGRAMNOT TO SCALESCOPETHIS SPECIFICATION COVERS THE MANUFACTURE ANDINSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED INTHE PROJECT PLANS.MATERIALTHE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TO THEAPPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929.PIPETHE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THEAPPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THEPIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ONTHE PROJECT PLANS.ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THEUNITED STATES.HANDLING AND ASSEMBLYSHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THENATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA)INSTALLATIONSHALL BE IN ACCORDANCE WITH AASHTO STANDARDSPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION IIOR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANSAND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES ORCONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVEWITH THE SITE ENGINEER.IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TOFOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.SPECIFICATION FOR CORRUGATED STEEL PIPE-ALUMINIZED TYPE 2 STEELMATERIAL SPECIFICATIONNOT TO SCALE9/22/20209REVISION DESCRIPTIONDATEMARKBY MANHOLE CAP DETAILNOT TO SCALE8"11" TYP.2" COVER TYP.1" GAP (TYP. ALL SIDES)NOTES:1.DESIGN IN ACCORDANCE WITH AASHTO, 17thEDITION AND ACI 350.2.DESIGN LOAD HS25.3.EARTH COVER = 1' MAX.4.CONCRETE STRENGTH = 4,000 psi5.REINFORCING STEEL = ASTM A615, GRADE 60.6.PROVIDE ADDITIONAL REINFORCING AROUNDOPENINGS EQUAL TO THE BARS INTERRUPTED,HALF EACH SIDE. ADDITIONAL BARS TO BE IN THESAME PLANE.AA 2" COVER(TYP)SECTION VIEWROUND OPTION PLAN VIEWSQUARE OPTION PLAN VIEWØ CMP RISERINTERRUPTED BARREPLACEMENT,SEE NOTE 6.STANDARDREINFORCING,SEE TABLEOPENING INPROTECTIONSLAB FORACESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.AINTERRUPTED BARREPLACEMENT, SEENOTE 6.BOPENING INPROTECTIONSLAB FORACCESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.STANDARDREINFORCING,SEE TABLEGASKET MATERIALSUFFICIENT TO PREVENTSLAB FROM BEARING ONRISER TO BE PROVIDED BYCONTRACTOR.2" COVER(TYP.)ØBREINFORCING TABLEØ CMPRISERAB ØREINFORCING**BEARINGPRESSURE(PSF)24"4'Ø4'x4'26"#5 @ 10" OCEW#5 @ 10" OCEW2,5401,90030"4'-6"Ø4'-6" x 4'-6"32"#5 @ 10" OCEW#5 @ 9" OCEW2,2601,67036"5'Ø5' x 5'38"#5 @ 9" OCEW#5 @ 8" OCEW2,0601,50042"5'-6"Ø5'-6" x 5'-6"44"#5 @ 8" OCEW#5 @ 8" OCEW1,4901,37048"6'Ø6' x 6'50"#5 @ 7" OCEW#5 @ 7" OCEW1,2101,270** ASSUMED SOIL BEARING CAPACITY1'-0"A2 " CO VER ( T Y P . ) 2 " COVER (T YP )7.TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS AMINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIREDTO MAINTAIN BAR COVER.8.PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED ANDINSTALLED BY CONTRACTOR.9.DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LANDSURVEYORS, ENDWELL, NY.ØB36"Ø MAX., HS-25 ACCESS CASTINGWITH GRADE RINGS AS REQUIRED, TOBE PROVIDED AND INSTALLED BYCONTRACTOR. MAY BE TOP MOUNTED(AS SHOWN) OR RECESSED.CMPPROTECTIONSLABVARIESRIM/FINISHEDGRADEACCESS CASTING NOT SUPPLIED BY CONTECH800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFC5RSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com9/22/20209REVISION DESCRIPTIONDATEMARKBY TOTAL FABRICATION HOURSFITTINGTARGETFABRICATIONTIME (HOURS)INITIALSACTUALFABRICATIONTIME (HOURS)A5.28B2.97C8.35TOTAL16.6800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFFHRSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1The design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 99/22/2020 PLAN VIEWELEVATION VIEWPART ASCALE: 1" = 5'3'-9"3'-6"8'-9"5'-3"3'-9"3'-9"LEFT VIEW3'-9"3'-6"1'-9"5'-6"5'-3"RIGHT VIEW2'-0"2'-1"10"Ø STUB A12'-6"1'-11"2'-6"PLAN VIEWELEVATION VIEWPART BSCALE: 1" = 5'23'-0"RIGHT VIEWLEFT VIEW42"Ø REINFORCED BULKHEAD B1SEE DETAIL SHEET F3FABRICATION HOURS - PART BTARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS2.97--------------------TOTAL-----FABRICATION HOURS - PART ATARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS5.28--------------------TOTAL-----800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFF1RSODATE:PROJECT No.:653622SEQ. No.:010FABRICATIONCONTECHDRAWING42"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1PROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 99/22/2020ALL PIPE ENDS MUST BE MATCH MARKED PLAN VIEWELEVATION VIEWPART CSCALE: 1" = 5'RIGHT VIEWLEFT VIEW30"Ø RISER C214'-6"42"Ø REINFORCED BULKHEAD C1SEE DETAIL SHEET F32'-6"4'-3"6"Ø STUB C34'-6"3'-414"1'-5"2'-6"72"Ø WEIR PLATE C4w/ 6"Ø DRAW DOWN C4ASEE DETAIL SHEET F10NO REINFORCEMENT REQUIREDFABRICATION HOURS - PART CTARGETFABRICATIONTIME (HOURS)ACTUAL FABRICATION TIME(HOURS)INITIALS8.35--------------------TOTAL-----800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFF2RSODATE:PROJECT No.:653622SEQ. No.:01042"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1FABRICATIONCONTECHDRAWINGThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comPROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEREVISION DESCRIPTIONDATEMARKBY 9/22/20209ALL PIPE ENDS MUST BE MATCH MARKED CORRUGATEDSTEEL PIPE (CSP)12GA MIN. STEEL PLATEBULKHEAD3/32TYP3/322-102-10DETAIL ADETAIL B2"x2"x1/4" ANGLE OPTIONREINFORCEMENT MEMBERS SHALL BEORIENTED AS SHOWN TO OBTAININTENDED STIFFNESS. REINFORCINGMEMBER CHOICE BASED ON PLANTAVAILABILITY AND LEAD TIMES. SEEFABRICATION PART DETAILS.3/32ELEVATION VIEWDRAW DOWN PIPEPART C4ASCALE: 1" = 2'1/162'-0"SYSTEM INV. = 893.50WEIR ELEV. = 895.501/161'-0"3'-6"42"Ø MAINLINE PIPE = 897.00800-338-1122 513-645-7000 513-645-7993 FAX9025 Centre Pointe Dr., Suite 400, West Chester, OH 45069SIDE VIEWELEVATION VIEW (OUTSIDE OF THE PIPE)BULKHEADPLACED ONEND OF CSPSEE DETAIL APLACE REINFORCEMENTON OUTSIDE OF SYSTEMAND EXTEND MEMBERPAST PIPE EDGEREINFORCINGMEMBER44"Ø O.D.BULKHEADREINFORCEMENT LENGTH TABLEMARKAB# REQ'DLENGTH3'-3"3'-8"3A42"Ø CSP BULKHEAD DETAIL (1'-0" MIN TO 10'-0" MAX HEIGHT OF COVER)NOT TO SCALESEEDETAIL B1012"±BA1012"NOTES:1.BULKHEAD DESIGNED FOR HS-20 AND HS-25 LOADING2.ACTIVE LATERAL EARTH COEFFICIENT (ka) IS ASSUMED TO BE 0.403.GROUND WATER ELEVATION SHOULD NOT EXCEED THE TOP OF THE CSP4.CONSTRUCTION LOADS NEED TO BE REVIEWED ON A PROJECT SPECIFIC BASIS5.IF PROJECT REQUIREMENTS EXCEED ABOVE CRITERIA, THE DESIGN MAY CHANGE6.BULKHEAD PLATE TO EXTEND PAST THE O.D. OF THE CSP FOR EXTERIOR WELD7.IF A STUB IS REQUIRED ON A BULKHEAD, SIZE AND LOCATION DETAILS WILL BE PROVIDED ON THEFABRICATION DRAWING SET AND REINFORCEMENT SHALL BE TRIMMED TO THE STUB8.ALL METALLIC COATINGS AFFECTED BY MANUFACTURING FABRICATION SHALL BE REPAIRED PER AASHTO M 36SECTION 11 REQUIREMENTS (E.G. ZINC-RICH PAINT ON ALL WELDS). IF POLYMER COATINGS ARE USED THEREPAIR OF DAMAGED COATINGS WILL BE IN CONFORMANCE WITH AASHTO M 245 SECTION 11 REQUIREMENTS9.THE BULKHEAD IS DESIGNED FOR NCSPA DESIGN METHODOLOGY42"Ø I.D. CSPEND VIEWWEIR PLATE DETAILPART C4SCALE: 1" = 3'1/16Ø42"12 GA. STEELBULKHEAD6"Ø PERFORATEDDRAW DOWN PIPE C4A6"Ø ORIFICEELEV = 893.50WEIRELEV = 895.502'-0"TOP OF PIPEELEV = 897.003'-6"RSOBEPCHECKED:DRAWN:RSODESIGNED:APPROVED:\\AD.CONTECH-CPI.COM\ROOT\MERLIN\PROJECT\ACTIVE\653600\653622\653622-10-CMP DETENTION\DRAWINGS\653622-010-CMP CONFAB.DWG 9/24/2020 11:10 AM SHEET NO.:OFF3RSODATE:PROJECT No.:653622SEQ. No.:01042"Ø PERFORATED UNDERGROUND RETENTION SYSTEM -653622-010STAAL RESIDENCE- 6700 INDIAN HILLSMINNEAPOLIS, MNSITE DESIGNATION: UG INFIL BASIN1FABRICATIONCONTECHDRAWINGThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comREVISION DESCRIPTIONDATEMARKBY 9/22/20209PROVIDED FOR INFORMATION ONLYINTENDED FOR PLANT USEALL BULKHEAD PLATE MATERIAL IS TO BE ALUMINIZED TYPE II (ALT2)ALL REINFORCING TO BE GALVANIZED ANGLE BOLLIG & SONS INC. 11401 COUNTY ROAD 3 HOPKINS MN 55343 952-938-4133 FAX 952-938-9615 office@bolligandsons.com January 27, 2022 Cates Fine Homes Attn: Jeff jeff@catesfinehomes.com JOB SITE: 6700 Indian Hills Road, Edina JOB DESCRIPTION: We excavated a trench 73’ X 16’ dug down to 890.5 put fabric and rock in, set tank at 893.5. Approximately 3’ oversized on 2 long sides, 10’ South side and 14’ on North side. Thank you for the opportunity to work with you on this project. We do appreciate your business. Respectfully, Jim Beuch DRAIN TILE LINES