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HomeMy WebLinkAbout3311721330051-10222015S E D I M E N T C 0 N T R 0 L P R A C T I C E S: 1. Implement sediment ent control practices in order to minimize sediment from entering surface waters, including curb and gutter systems and storm drain inlets. 2. Install all temporary or permanent sediment control measures including silt fence at perimeter of construction, bio -logs at driveway, sediment filters, silt sacks, and sedimentation basins .prior to beginning site clearing, grading, or other land -disturbing activity. Protect all storm sewer inlets that receive runoff from disturbed areas. 3. Establish sediment control practices on all down gradient perimeters before any up gradient land disturbing activities begin. These practices must remain in place until final stabilization has been established. 4. The timing of the installation of sediment control practices may be adjusted in order to accommodate short-term activities, but sediment control practices must be installed before the next precipitation event even if the short-term activity is not complete. 5. If the down gradient treatment system becomes overloaded, install additional up gradient sediment control practices or redundant BMPs in order to eliminate the overloading. 6. Before beginning construction, install a TEMPORARY ROCK CONSTRUCTION ENTRANCE at each point where vehicles exit the construction site. Use 25 mm (1 inch) to 50 mm (2 inch) diameter rock, MNDOT Standard Specification 3137 CA -1, CA -2, CA -3, or equal Coarse Aggregate. Place the aggregate in a layer at least 152 mm (6 inches) thick across the entire width of the entrance. Extend the rock entrance at least 15 m (50 feet) into the construction zone. Use a MNDOT Standard Specification 3733 Type V permeable geotextile fabric material beneath the aggregate in order to prevent migration of soil into the rock from below. Maintain the entrance in a condition that will prevent tracking or flowing of sediment onto paved roadways. Provide periodic top dressing with additional stone as required. Close entrances not protected by temporary rock construction entrances to all construction traffic. 7. If necessary, clean the wheels of construction vehicles in order to remove soils before the vehicles leave the construction site. Wash vehicles only on an area stabilized with stone that drains into an approved sediment trapping device. 8. Remove all soils and sediments tracked or otherwise deposited onto adjacent property, pavement areas, sidewalks, streets, and alleys. Removal shall be on a daily basis throughout the duration of the construction. Clean paved roadways by shoveling, wet -sweeping, or dry sweeping. If necessary, scrape paved surfaces in order to loosen compacted sediment material prior to sweeping. Haul sediment material to a suitable disposal area. Street washing is allowed only after sediment has been removed by shoveling or sweeping. 9. Soil Stockpiles: Install siltfence or other effective sediment controls around all temporary soil stockpiles. Locate soil or dirt stockpiles such that the downslope drainage length is no less than 8 m (25 feet) from the toe of the pile to a surface water, including stormwater conveyances such as curb and gutter systems, or conduits and ditches unless there is a bypass in place for the stormwater. If remaining for more than 7 days, stabilize the stockpiles by mulching, vegetative cover, tarps, or other means. During street repair, cover construction soil or dirt stockpiles located closer than 8 m (25 feet) to a roadway or drainage channel with tarps, and protect storm sewer inlets with silt sacks or staked siltfence. 10. Silt Fence: Install silt fence along the contour (on a level horizontal plane) with the ends turned up (J -hooks) in order to help pond water behind the fence. Install the silt fence on the uphill side of the support posts. Provide a post spacing of 1.2 m (4 feet) or less. Drive posts at least 0.6 m (2 feet) into the ground. Anchor the silt fence fabric in a trench at least 152 mm (6 inches) deep and 152 mm (6 inches) wide dug on the upslope side of the support posts. Lay the fabric in the trench and then backfill and compact with a vibratory plate compactor. Make any splices in the fabric at a fence post. At splices, overlap the fabric at least 152 mm (6 inches), fold it over, and securely fasten it to the fence post. Silt fence supporting posts shall be 51 mm (2 inch) square or larger hardwood, pine, or standard T- or U -section steel posts. T- or U -section steel posts shall weigh not less than 1.8602 kg per meter (1.25 Ib per lineal foot). Posts shall have a minimum length of 1524 mm (5 feet). Posts shall have projections to facilitate fastening the fabric and prevent slippage. Geotextile fabric shall meet the requirements of MNDOT Standard Specification 3886 for preassembled silt fence, furnished in a continuous roll in order to avoid splices. Geotextile fabric shall be uniform in texture and appearance and have no defects, flaws, or tears. The fabric shall contain sufficient ultraviolet (UV) ray inhibitor and stabilizers to provide a minimum two-year service life outdoors. Fabric color shall be international orange. 11. Maintain all temporary erosion and sediment control devices in place until the contributing drainage area has been stabilized (hard -surfaced areas paved and vegetation established in greenspace). Repair any Tilling, gully formation, or washouts. After final establishment of permanent stabilization, remove all temporary synthetic, structural, and nonbiodegradable erosion and sediment control devices and any accumulated sediments. Dispose -of off site. Restore permanent sedimentation basins to their design condition immediately following stabilization of the site. 12. If dewatering is required and sump pumps are used, all pumped water must be discharged through a sediment control device such as a dewatering bag or other appropriate facility prior to leaving the construction site. Proper energy dissipation must be provided at the outlet of the pump system. I N S P E C T 1 0 N S A N D MAI NTENAN CE: 1. Inspect the entire construction site at least once every 7 days during active construction and within 24 hours after a rainfall event greater than 0.5 inches in a 24-hour period. Following an inspection that occurs within 24 hours after a rainfall event, the next inspection must be conducted within 7 days after that rainfall event. 2. Inspect all erosion prevention and sediment control BMPs, infiltration areas, and stabilized areas. 3. Record all inspections and maintenance conducted during construction in writing and keep these records. The inspections and maintenance records must include date and time of inspections, date and amount of all rainfall events greater than 0.5 inches in a 24-hour period, name of persons(s) conducting inspections, findings of inspections, recommendations for corrective actions, and any corrective actions taken. 4. Inspect all erosion prevention and sediment control BMPs in order to ensure integrity and effectiveness. Repair, replace, or supplement any nonfunctional BMPs with functional BMPs within 24 hours after discovery, or as soon as field conditions allow access unless another time frame is specified. 5. Remove accumulated sediment deposits from behind erosion and sediment control devices as needed. Do not allow sediment to accumulate to a depth of more than one-third of the height of the erosion and sediment control devices. Repair, replace, or supplement deteriorated, damaged, rotted, or missing erosion control devices within 24 hours of discovery, or as soon as field conditions allow access. 6. Repair, replace, or supplement all silt fences when they become nonfunctional or the sediment reaches 1/3 of the height of the fence. These repairs must be made within 24 hours of discovery, or as soon as field conditions allow access. 7. Clean sedimentation basins, storm sewer catch basins, ditches, and other drainage facilities as required in order to maintain their effectiveness. Temporary and permanent sedimentation basins must be drained and the sediment removed when the depth of sediment collected in the basin reaches 1/2 of the storage volume. Drainage and removal must be completed within 72 hours, or as soon as field conditions allow access. 8. Inspectect surface waters (including drainage ditches and conveyance systems) evidence of erosion and sediment t deposition. Remove all deltas and sediment deposited. Stabilize areas where sediment removal results in exposed soil. Removal and stabilization must be completed within 7 days of discovery unless precluded by legal, regulatory, or physical access constraints. If precluded, removal and stabilization must take place within 7 days of obtaining access. 9. Inspect construction site vehicle exit locations for evidence of off-site sediment tracking onto paved surfaces. Remove all soils and sediments tracked or otherwise deposited onto adjacent property, pavement areas, sidewalks, streets, and alleys. Removal shall be on a daily basis throughout the duration of the construction. Clean paved roadways by shoveling or wet -sweeping. Do not dry sweep. If necessary, scrape paved surfaces in order to loosen compacted sediment material prior to sweeping. Haul sediment material to a suitable disposal area. Street washing is allowed only after sediment has been removed by shoveling or sweeping. 10. Perform any corrective measures ordered by the City or Watershed District within 24 hours of notification. Install any additional erosion protection or sediment control measures deemed necessary by the City or Watershed District within 24 hours of notification. E R 0 S 1 0 N P R E V E N T 1 0 N P R A C T I C E S: 1. Delineate the location of areas not to be disturbed (e.g. with flags, stakes, signs, silt fence, etc.) on the development site before work begins. 2. Avoid removal of trees and surface vegetation wherever possible. Schedule construction in order to expose the smallest practical area of soil at any given time. Implement appropriate construction phasing, vegetative buffer strips, horizontal slope grading, and other construction practices that minimize erosion. 3. Following initial soil disturbance or redisturbance, complete permanent or temporary stabilization against erosion due to rain, wind, and running water as soon as possible, but in no case later than 14 calendar days, on all disturbed or graded areas including stormwater management pond sideslopes. This requirement does not apply to those areas that are currently being used for material storage or for those areas on which grading, site building, or other construction activities are actively underway. 4. Provide temporary grass seed cover on all topsoil stockpiles and other areas of stockpiled excavated material in order to prevent soil erosion and rapid runoff during the construction period. Prolonged periods of open, bare earth without grass cover will not be permitted. Stabilize all disturbed greenspace areas with a minimum of 4" topsoil immediately after final subgrade completion. Seed and mulch, or sod and stake these areas within 48 hours after completion of final grading work (weather permitting). 5. Stabilize all disturbed areas to be paved using early application of gravel base. 6. Apply necessary moisture to the construction area in order to prevent the spread of dust. M A T E R I A L S: 1. Storm Sewer Inlet Protection (areas with pedestrian or vehicle traffic): Emergency overflow is required. Take care to protect the catch basin curb -box from additional sediment escaping over the top of these devices while still allowing for emergency overflow. a. Road Drain Curb & Gutter: With replaceable filter sock. Manufactured by WIMCO, 799 Theis Drive, Shakopee, MN 55379, Phone (952) 233-3055, (www.roaddrain.com). b. Silt Sack: Type B. regular flow (50 gpm/ft2), with curb deflector as required. Rectangular siltsack on rectangular inlets. Round siltsack on round inlets. Manufactured by ACF ENVIRONMENTAL, 2831 Cardwell Road, Richmond, VA 23234, Phone (800) 448-3636, (www.acfenvironmental.com). c. Dandy Sack: With curb filter as required. Manufactured by DANDY PRODUCTS, 1095 Harcourt Road, Mount Vernon, OH 43050, Phone (800) 591-2284, (www.dandyproducts.com). d. Dandy Bag: With curb filter as required. Manufactured by DANDY PRODUCTS, 1095 Harcourt Road, Mount Vernon, OH 43050, Phone (800) 591-2284, (www.dandyproducts.com). e. Sediguard Filter: With Sediguard curbguard as required. Available from ERO-TEX, N94 W14330 Garwin Mace Drive, Menomonee Falls, WI 53051, Phone (866) 437-6839, (www.ero-tex.net). 2. Storm Sewer Inlet Protection (areas with no pedestrian or vehicle traffic): Emergency overflow is required. Take care to protect the catch basin curb -box from additional sediment escaping over the top of these devices while still allowing for emergency overflow. a. Road Drain Top Slab: Model RD 23 (fits rough opening for 2'x3' inlet), Model RD 27 (fits rough opening for 27" inlet), or Model CG 3067 (fits Neenah Casting with 35-1/4"x17-3/4" dimensions). Manufactured by WIMCO, 799 Theis Drive, Shakopee, MN, 55379, Phone (952) 233-3055, www.roaddrain.com. Do not use in public right-of-way. b. InfraSafe Sediment Control Barrier: Install geotextile sock on the outside of the barrier in order to trap additional fines. Standard frames are available to fit 24" to 30" diameter and 2'x3' openings. Distributed by ROYAL ENTERPRISES AMERICA, 30622 Forest Boulevard, Stacy, MN, 55079, Phone (651) 462-1766, (www.royalenterprises. com). Do not use in public right-of-way. c. Rock Snake/Rock Sock/Rock Log/Rock Tube: Use only for inlets after pavement is in place. Silt Sifter Tubes distributed by WESTERN FIBER COMPANY, PO Box 22665, Bakersfield, CA 93390, Phone (661) 854-5556, (www.westernfiber.com). Do not use in public right-of-way. 3. Topsoil: Topsoil used for finish grading of areas to be turfed or planted shall meet the requirements of MNDOT Standard Specification 3877 for topsoil borrow modified to contain no more than 35% sand. Topsoil shall be reasonably free of subsoil, heavy clay, coarse sand, stones, and other objects over 51 mm (2 inches) in diameter; and without plants, roots, sticks, and other objectionable material. 4. Geotextile Fabric for Subg_rode Stabilization (if re uireA): MNDOT Standard Specification 3733 Type V permeable geotextile material. 5. Supporting Posts for Siltfence: 51 mm (2 inch) square or larger hardwood, pine, or standard T- or U -section steel posts. T- or U -section steel posts shall weigh not less than 1.8602 kg per meter (1.25 Ib per lineal foot). Posts shall have a minimum length of 1524 mm (5 feet). Posts shall have projections to facilitate fastening the fabric and prevent slippage. 6. Siltfence Fabric: MNDOT Standard Specification 3886 self supporting silt fence. Furnish in a continuous roll in order to avoid splices. Geotextile fabric shall be uniform in texture and appearance and have no defects, flaws, or tears. The fabric shall contain sufficient ultraviolet (UV) ray inhibitor and stabilizers to provide a minimum two-year service life outdoors. Fabric color shall be international orange. 7. Aggregate for Temporary Rock Construction Entrance: 25 mm (1 inch) to 50 mm (2 inch) diameter rock, MNDOT Standard Specification 3137 CA -1, CA -2, or CA -3 Coarse Aggregate, or equal. 8. Geotextile Fabric for Temporary Rock Construction Entrance: MNDOT Standard Specification 3733 Type V permeable geotextile fabric material. 9. Aggregate for Block and Rock Sediment Filter: 25 mm (1 inch) to 50 mm (2 inch) diameter rock, MNDOT Standard Specification 3137 CA -1, CA -2, or CA -3 Coarse Aggregate, or equal. 10. Block and Rock Inlet Filters: Block and Rock Inlet Filters consist of open -core concrete masonry blocks, wire screen with 12 mm (0.5 inch) openings, and washed rock. Place open -core concrete masonry blocks lengthwise on their sides around the catchbosin inlet. Place wire screen around the perimeter to the top of the block barrier before the rock is placed. The screen acts to prevent the rocks from being washed through the blocks. Place rock against the wire mesh to the top of the blocks. Use 25 mm (1 inch) to 50 mm (2 inch) diameter rock, MNDOT Standard Specification 3137 CA -1, CA -2, CA -3, or equal Coarse Aggregate. Install two courses of 8" blocks in order to form a barrier height of 16". 11. Concrete Block for Block and Rock Inlet Filter: Standard units with nominal face dimensions of 16 x 8 -_--- in"chess.--tv1inimum--8- inches -nominal --depth.__ 12. Wire Screen for Block and Rock Inlet Filter: 12 mm (0.5 inch) openings 13. ales: Tightly bound bales of unrotted hay, straw, or other grass locally available from recent cuttings. 14. Biodegradable Erosion Control Blankets: In accordance with MNDOT Standard Specification 3885. 15. Erosion Control Matting: LandLok TRM 450 Turf Reinforcement Mat manufactured by Propex, Inc. (www.goeotextile.com), or approved equal soil erosion control matting. 16. Staples: Staples used to anchor erosion control blankets shall be U-shaped, 3 mm diameter or heavier steel wire. The span width at the crown shall be a minimum of 25 mm (1 inch). Staples shall have a length of 250 mm (10 inches) or more from top to bottom after bending. 17. Bio -Logs: Curlex Sediment Log, as manufactured by American Excelsior Company (www,curlex.com), or approved equal. Excelsior fibers shall be weed seed free, TYPE III 9 -inch (23 -cm) diameter. Excelsior color shall be standard (natural). Netting at each end of the log shall be secured to assure fiber containment. P 0 L L U T 1 0 N P R E V E N T 1 0 N M E A S U R E S 1. Solid Waste: Dispose of collected sediment, asphalt and concrete millings, floating debris, paper, plastic, fabric, construction and demolition debris, and other wastes properly off-site in compliance with Minnesota Pollution Control Agency requirements. 2. Hazardous Materials: Properly store oil, gasoline, paint and any hazardous substances in order to prevent spills, leaks or other discharge. Include secondary containment. Restrict access to storage areas in order to prevent vandalism. Storage and disposal of hazardous materials must be in compliance with MPCA regulations. 3. Other Materials: Dispose of unused building materials garbage, trash, cleaning wastes toxic materials, and wastewater properly off-site and in compliance with Minnesota Pollution Control Agency disposal requirements. 4. Furnish suitable trash containers and regularly remove the accumulated trash from the premises. 5. Do not allow solid waste, hazardous materials, and other materials shall to be carried by runoff into a receiving water or storm sewer system. 6. Limit external washing of trucks and other construction vehicles to a defined area of the site. Wash vehicles only on an area stabilized with stone that drains into an approved sediment trapping device. Contain runoff and properly dispose of waste. Engine degreasing is prohibited. 7. Concrete Washout Operations: Contain all liquid and solid wastes generated by concrete washout operations in a leak -proof containment facility or impermeable liner. Do not allow the liquid and solid wastes to contact the ground. Prevent runoff from the concrete washout operations or areas. Dispose of liquid and solid wastes properly in compliance with Minnesota Pollution Control Agency regulations. Install a sign adjacent to each washout facility in order to inform concrete equipment operators to utilize the proper facilities. 8. Sanitary and Septic Waste: Furnish and install detached portable toilet facilities at the construction site. The portable toilets shall be conveniently located for the use of all workers on the project. Maintain the facilities in a clean, dry, sanitary condition in accordance with Minnesota Department of Health requirements. #15-569 T. R. S. DRAWING: \\SERVER\Projects\2015\#15-569 6012 Hansen Road Edina (Bella)\2015-10-05\15569ST1.dwg LAYOUT: Layoutl XREF: Survey; XREF: Site Plan JOIN SECTIONS FABRIC COLOR SHALL BE INTERNATIONAL ORANGE WRAP POSTS AND TIE TOGETHER x'••_` 5:-45.'� a4«C.*4XRtir.C�` ` '4�42i4E=4.:.4:' . "`'' PERSPECTIVE •���• VIEW GEOTEXTILE FABRIC IN ACCORDANCE WITH MNDOT STD. SPEC. 3886 FOR SELF SUPPORTING SILT FENCE 2 INCH SQUARE HARDWOOD, PINE, OR STANDARD T- ORLPLATE ORCE WITH SNOW FENCE, U -SECTION STEEL POSTS. DDMESH, OR STIFF PLASTIC NOT EXCEED MAXIMUM POST IN AREAS WHERE SPACING OF 4 Fr. O.C. ENTRATED FLOWS OCCUR AS SWALES, DITCHES, N FRONT OF CULVERTS ATCHBASINS) HE FABRIC AGAINST THE AND BOTTOM OF THE 30" MIN. HEIGHTH. BACKFILL AND ACT WITH A VIBRATORY o COMPACTOR DIRECTION SURFACE FLOW I PHILLIPS FIBER CORPORATION SUPAC 4NP GEOTEXTILE FILTER FABRIC, OR EQUAL, ALONG\ SIDES AND TOP OF AGGREGATE 0000000'6°poo' 0 0O oOOC 00 o0°0000-°�°a 24 00000,000, 0 00 0° C 00000000 0 000 0 �0Z °oo°O0° 0 X00 TOP OF AGGREGATE = 903.00 PUBLIC R '0 6 INCH MINIMUM THICKNESS 30 FOOT MINIMUM LENGTH MNDOT STANDARD SPECIFICATION 3733 TYPE V PERMEABLE GEOTEXTILE FABRIC MATERIAL BENEATH THE ROCK 24 -INCH HIGH CUT-OFF DIKE WITH MAXIMUM SIDESLOPES OF 4:1 INIMUM 6" , rf 1 TO 2 INCH DIAMETER WASHED ROCK, MNDOT STANDARD SPECIFICATION 3137 CA -1, CA -2, CA -3 OR EQUAL COARSE AGGREGATE 12 FOOT MINIMUM WIDTH CONSTRUCTION SEQUENCE Delineate the location of areas not to be disturbed (e.g. with flags, 1 10,410 IN Establish sediment control practices on all down gradient perimeters o SOIL USE LATH AND STAPLES TO V �if����i/�i�; �ir�tiSECTION The timing of the installation of sediment control practices may be POSTS.FABRIC adjusted in order to accommodate short-term activities, but sediment ATTACH FABRIC TO STEELPOSTS. even if the short-term activity is not complete. USE HOG RINGS To �'�11������""AINICHOR SUPPORTATTACH FABRIC TO WIRE MESH POST IN SOIL 6 Install utilities. 7 Install pavements. PHILLIPS FIBER CORPORATION SUPAC 4NP GEOTEXTILE FILTER FABRIC, OR EQUAL, ALONG\ SIDES AND TOP OF AGGREGATE 0000000'6°poo' 0 0O oOOC 00 o0°0000-°�°a 24 00000,000, 0 00 0° C 00000000 0 000 0 �0Z °oo°O0° 0 X00 TOP OF AGGREGATE = 903.00 PUBLIC R '0 6 INCH MINIMUM THICKNESS 30 FOOT MINIMUM LENGTH MNDOT STANDARD SPECIFICATION 3733 TYPE V PERMEABLE GEOTEXTILE FABRIC MATERIAL BENEATH THE ROCK 24 -INCH HIGH CUT-OFF DIKE WITH MAXIMUM SIDESLOPES OF 4:1 INIMUM 6" , rf 1 TO 2 INCH DIAMETER WASHED ROCK, MNDOT STANDARD SPECIFICATION 3137 CA -1, CA -2, CA -3 OR EQUAL COARSE AGGREGATE 12 FOOT MINIMUM WIDTH CONSTRUCTION SEQUENCE Delineate the location of areas not to be disturbed (e.g. with flags, 1 stakes, signs, silt fence, etc.) before work begins. Establish sediment control practices on all down gradient perimeters 2 before any up gradient land disturbing activities begin. These practices shall remain in place until final stabilization has been established. Install all perimeter sediment control devices and construction entrances. The timing of the installation of sediment control practices may be 3 adjusted in order to accommodate short-term activities, but sediment control practices must be installed before the next precipitation event even if the short-term activity is not complete. 4 Contact the City for approval of the sediment control devices. 5 Rough grade the site. 6 Install utilities. 7 Install pavements. 8 Install lawn and landscape. 9 Restore all disturbed areas. 10 Clean all storm sewer and conveyance systems. After all disturbed areas are stabilized, obtain approval from the City 11 and/or Watershed District. rl2 Remove all temporary sediment control devices. 2" MINIMUM COVER O°°OCp°Oa 00-60-00- 0°°°vp°090°OO�Ov(p0v( po0v0°p9�Ov�pp'.'O° 00'000'60 p..O°O 6011-00V_ 0�_oo.'50O.. �o0ppo0ppo0poapoo°po°°po000000po°poo°Opo°000°po°°pa° pop°popOpo°0o°°00°°00°°00°°0°°°0°°°0 ,O_„00_ OO_pO�npO�n O0�n00_nO�.,oO�no0�00°�O°°° 0°° °° 000o O�000�npo000?a'Op4o 0�. 6" DIAMETER HDPE STORM SEWER WITH ^ AASHTO M294 CL II PERFORATIONS D°op°'-- 000 , b'J o°uo° 00 00 0o 00 p0°"00"00 0 0 0 0 0°" 0U )0p 000°00000000000000000 00000Opp0000000 000°°O°°°O°°p°°°°°°pp°po�pO°°°po°pp° p°o °°o pp .00 p0°poo° 00°000 poo 000 00° 00° 00° 00o0p00D 000 00 0°°00 00()000 00 OO0000°°40°°' 0 op o 0 o o° o0 oa poo po po po 0°° opo ° ° o0°p0°°o0°°op°pop°o°00 pO°s INVERT - 901.75 9 fl 5' LONG x 10' WIDE DRAINFIELD ROCK. USE IGNEOUS ROCK, OR SIMILAR INSOLUBLE, DURABLE, AND DECAY -RESISTANT MATERIAL BETWEEN 1HREE-FOURTHS INCH AND 2-1/2 INCHES IN \ SIZE, WITH NO MORE THAN FIVE PERCENT BY WEIGHT PASSING A THREE-FOURTHS INCH SIEVE AND NO MORE THAN ONE PERCENT BY WEIGHT PASSING A NO. 200 IN, SIEVE. MATERIALS GREATER THAN 2-1/2 INCHES IN SIZE SHALL NOT EXCEED FIVE PERCENT BY off. PHILLIPS FIBER CORPORATION SUPAC 4NP GEOTEXTILE FILTER FABRIC, OR EQUAL, ALONG SIDES AND TOP OF AGGREGATE TOP OF AGGREGATE = 903.00 12" ADS STANDARD PEDESTRIAN H-10 INLET GRATE DIAMETEROP STORM SEWER INVERT - 901.75 OF AGGREGATE = 901.00 SUBSURFACE INFILTRATION #1 INIMUM 6" OV v0O'ppv'0 p0"Qo0�000-p0v-00'-p0'-p0w0p0-o00- 0W- 0-° 0000000 0wGno°O�n O0O- p°0p° p0° aO 0 00 000p000000O°p°O0OppO0paa00 ppaO0ppa0Op°app00p 0Ov O"ap0D0'eO'°ap0OpppOppDpOO00O000000 �0OctO000O000O000O�� O p f.�O000p00pD°O0..000000 000 pC 0000000nO0? O 00 O 6" DIAMETER HDPE RM SEWER WITHo°AASHT0 M294 CL II PERFORATIONSa00O0o000°c Dp0popO070-5_V'-'00U-00 00 000C 0°°o°°p° °°O°°°O° O°° 00°O°°°O°°°O°°°O°°00pO00°00pOp0°°O IPE INVERT = 901.00 42' LONG x 15' WIDE DRAINFIELD ROCK. USE IGNEOUS ROCK, OR SIMILAR INSOLUBLE, DURABLE, AND DECAY -RESISTANT MATERIAL BETWEEN THREE-FOURTHS INCH AND 2-1/2 INCHES IN SIZE, WITH NO MORE THAN FIVE PERCENT BY WEIGHT PASSING A THREE-FOURTHS INCH SIEVE AND NO MORE THAN ONE PERCENT BY WEIGHT PASSING A NO. 200 SIEVE. MATERIALS GREATER THAN 2-1/2 INCHES IN SIZE SHALL NOT EXCEED FIVE PERCENT BY WEIGHT. 12" ADS STANDARD PEDESTRIAN H-10 INLET GRATE 12" MINIMUM COVER vO�pv�ppv0ppv�po.'Op 0p pp a 'pO 0 4 000000000000°000°000 00000004 o_„po_°o°no0° 0° 0° 0° 00° a°° 6" DIAMETER HDPE STORM SEWER iOO O°000°O000p00°pOa pop poo p0 °00p0000°000000 O 000 000 p0° p0°000°000°000°p PE INVERT = 901.75 0i SUBSURFACE INFILTRATION #2 OF AGGREGATE = 901.00 2"• TOP - 904.0 12" ADS NYLOPLAST DRAIN BASIN 904.0 "STANDARD 12" ADS NYLOPLAST DRAIN BASIN 6012 HANSEN ROAD EDINA, MN 13�-I(�-a1'3;�- 0a15-1 DATE REVISION I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT WAS 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. kt) 1;,0_4J lel, Brian Mundstock 1 / DATE: 10/19/15 REG. NO.: 23468 INFORMATION: PROJECT NO.: DRAWN BY: CHECKED BY: APPROVED BY SCALE: DATE: DESCRIPTION: 15-569 LKS BHM BHM GRAPHIC 10/19/15 NOTES AND DETAILS SHEET NO: ST2 2 of 2 6"