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HomeMy WebLinkAbout1902824210098-10152015SEDIMENT AND EROSION CONTROL NOTES CONSTRUCTION SEQUENCING 1. INSTALLATION OF SILT FENCE OR BIO -ROLL AROUND SITE 2. DEMOLITION OF EXISTING STRUCTURES IF ANY. 3. CLEAR AND GRUB. 4. CONSTRUCT NEW STRUCTURE 5. WHEN ALL CONSTRUCTION ACTIVITY IS COMPLETE AND THE SITE IS STABILIZED BY EITHER SEED OR SOD/LANDSCAPING, REMOVE SILT FENCE AND RESEED ANY AREAS DISTURBED BY THE REMOVAL. EROSION PREVENTION THE CONTRACTOR IS RESPONSIBLE FOR PLANING FOR AND IMPLEMENTING APPROPRIATE CONSTRUCTION PHASING, VEGETATIVE BUFFER STRIPS, HORIZONTAL SLOPE GRADING, AND OTHER CONSTRUCTION PRACTICES THAT MINIMIZE EROSION. ALL EXPOSED SOIL AREAS MUST BE STABILIZED AS SOON AS POSSIBLE TO LIMIT SOIL EROSION BUT IN NO CASE LATER THAN 14 DAYS AFTER THE CONSTRUCTION ACTIVITY IN THAT PORTION OF THE SITE HAS TEMPORARILY OR PERMANENTLY CEASED. THE NORMAL WETTED PERIMETER OF ANY TEMPORARY OR PERMANENT DRAINAGE DITCH OR SWALE THAT DRAINS WATER FROM ANY PORTION OF THE CONSTRUCTION SITE, OR DIVERTS WATER AROUND THE SITE, MUST BE STABILIZED WITHIN 20 LINEAL FEET FROM THE PROPERTY EDGE, OR FROM THE POINT OF DISCHARGE INTO ANY SURFACE WATER. STABILIZATION OF THE LAST 20 LINEAL FEET MUST BE COMPLETED WITHIN 24 HOURS AFTER CONNECTING TO A SURFACE WATER. STABILIZATION OF THE REMAINING PORTIONS OF ANY TEMPORARY OR PERMANENT DITCHES OR SWALES MUST BE COMPLETE WITHIN 14 DAYS AFTER CONNECTING TO A SURFACE WATER AND CONSTRUCTION IN THAT PORTION OF THE DITCH HAS TEMPORARILY OR PERMANENTLY CEASED. TEMPORARY OR PERMANENT DITCHES OR SWALES THAT ARE BEING USED AS A SEDIMENT CONTAINMENT SYSTEM (WITH PROPERLY DESIGNED ROCK DITCH CHECKS, BIO ROLLS, SILT DIKES ETC.) DO NOT NEED TO BE STABILIZED. THESE AREAS MUST BE STABILIZED WITHIN 24 HOURS AFTER NO LONGER BEING USED AS A SEDIMENT CONTAINMENT SYSTEM. PIPE OUTLETS MUST BE PROVIDED WITH TEMPORARY OR PERMANENT ENERGY DISSIPATION WITHIN 24 HOURS AFTER CONNECTION TO A SURFACE WATER. SEDIMENT CONTROL SEDIMENT CONTROL PRACTICES MUST MINIMIZE SEDIMENT FROM ENTERING SURFACE WATERS, INCLUDING CURB AND GUTTER SYSTEMS AND STORM SEWER INLETS. SEDIMENT CONTROL PRACTICES MUST BE ESTABLISHED ON ALL DOWN GRADIENT PERIMETERS BEFORE ANY UPGRADIENT LAND DISTURBING ACTIVITIES BEGIN. THESE PRACTICES SHALL REMAIN IN PLACE UNTIL FINAL STABILIZATION HAS BEEN ESTABLISHED. ALL STORM DRAIN INLETS MUST BE PROTECTED BY APPROPRIATE BMPS DURING CONSTRUCTION UNTIL ALL SOURCES WITH POTENTIAL FOR DISCHARGING TO THE INLET HAVE BEEN STABILIZED. TEMPORARY SOIL STOCKPILES MUST HAVE SILT FENCE OR OTHER EFFECTIVE SEDIMENT CONTROLS, AND CANNOT BE PLACED IN SURFACE WATERS, INCLUDING STORMWATER CONVEYANCES SUCH AS CURB AND GUTTER SYSTEMS, OR CONDUITS AND DITCHES UNLESS THERE IS A BYPASS IN PLACE FOR THE STORMWATER. VEHICLE TRACKING OF SEDIMENT FROM THE CONSTRUCTION SITE MUST BE MINIMIZED BY A ROCK CONSTRUCTION ENTRANCE. STREET SWEEPING MUST BE USED IF THE ROCK ENTRANCE IS NOT ADEQUATE TO PREVENT SEDIMENT FROM BEING TRACKED ONTO THE STREET. TEMPORARY DE -WATERING - DEWATERING OR BASIN DRAINING (E.G., PUMPED DISCHARGES, TRENCH/DITCH CUTS FOR DRAINAGE) RELATED TO THE CONSTRUCTION ACTIVITY THAT MAY HAVE TURBID OR SEDIMENT LADEN DISCHARGE WATER MUST BE DISCHARGED TO A TEMPORARY OR PERMANENT SEDIMENTATION BASIN ON THE PROJECT SITE WHENEVER POSSIBLE. IF THE WATER CANNOT BE DISCHARGED TO A SEDIMENTATION BASIN PRIOR TO ENTERING THE SURFACE WATER, IT MUST BE TREATED WITH THE APPROPRIATE BMP'S SUCH THAT THE DISCHARGE DOES NOT ADVERSELY AFFECT THE RECEIVING WATER, DOWNSTREAM LANDOWNERS OR WETLANDS. THE CONTRACTOR MUST ENSURE THAT DISCHARGE POINTS ARE ADEQUATELY PROTECTED FROM EROSION AND SCOUR. THE DISCHARGE MUST BE DISPERSED OVER NATURAL ROCK RIPRAP, SAND BAGS, PLASTIC SHEATHING OR OTHER ACCEPTED ENERGY DISSIPATION MEASURES. ADEQUATE SEDIMENTATION CONTROL MEASURES ARE REQUIRED FOR DISCHARGE WATER THAT CONTAINS SUSPENDED SOLIDS. FILTER BACKWASH WATERS MUST BE HAULED AWAY FOR DISPOSAL, RETURNED TO THE BEGINNING OF THE TREATMENT PROCESS, OR INCORPORATE INTO THE SITE IN A MANNER THAT DOES NOT CAUSE EROSION. DISCHARGE OF THE BACKWASH WATER TO SANITARY SEWER IS ALLOWED WITH PERMISSION OF THE SANITARY SEWER AUTHORITY SOIL COMPACTION PRECAUTIONS THE PERMITEE MUST MINIMIZE SOIL COMPACTION AND, UNLESS INFEASIBLE, PRESERVE TOPSOIL. MINIMIZING SOIL COMPACTION IS NOT REQUIRED WHERE THE FUNCTION OF THE SPECIFIC AREA OF THE SITE DICTATES THAT IT BE COMPACTED. METHODS FOR MINIMIZING COMPACTION INCLUDE THE USE OF TRACKED EQUIPMENT, AND STAYING OFF OF AREAS TO BE LEFT UN -COMPACTED. METHODS TO PRESERVE TOPSOIL INCLUDE STRIPPING AND STOCKPILING TOPSOIL PRIOR TO GRADING OR EXCAVATION OPERATIONS. INSPECTIONS AND MAINTENANCE THE CONTRACTOR IS RESPONSIBLE AT ALL TIMES FOR THE MAINTENANCE AND PROPER OPERATION OF EROSION AND SEDIMENT CONTROL FACILITIES. THE CONTRACTOR SHALL AT A MINIMUM, INSPECT, MAINTAIN AND REPAIR ALL DISTURBED SURFACES AND ALL EROSION AND SEDIMENT CONTROL FACILITIES AND SOIL STABILIZATION MEASURES. BASED ON INSPECTION RESULTS THE CONTRACTOR MAY AND SHALL MODIFY THE EROSION AND SEDIMENT CONTROL PLAN IN ORDER TO PREVENT POLLUTANTS FROM LEAVING THE SITE VIA STORM WATER RUNOFF. POLLUTION PREVENTION CONCRETE WASHOUT - SHALL OCCUR OFF-SITE HAZARDOUS WASTE STORAGE AND HANDLING -OIL, GASOLINE, PAINT AND ANY HAZARDOUS SUBSTANCES MUST BE PROPERLY STORED, INCLUDING SECONDARY CONTAINMENT, TO PREVENT SPILLS, LEAKS OR OTHER DISCHARGE. RESTRICTED ACCESS TO STORAGE AREAS MUST BE PROVIDED TO PREVENT VANDALISM. STORAGE AND DISPOSAL OF HAZARDOUS WASTE MUST BE IN COMPLIANCE WITH MPCA REGULATIONS. STORMWATER FINAL GRADING OF THE LOT SHALL PROMOTE SHEET DRAINING AND AVOID CONCENTRATION OF STORM WATER FLOWS. FINAL GRADING SHALL MAINTAIN THE EXISTING STORM WATER DRAINAGE PATTERNS TO THE EXTENT POSSIBLE AND PRACTICAL AS TO NOT CAUSE ANY DAMAGE TO ADJACENT PROPERTIES. STORMWATER, SEDIMENT & EROSION CONTROL CONTACT: PATRICK MOONEY GUARDIAN HOMES, LLC PATRICK@GUARDIANHOMESMN.COM 612-919-6617 NOTES: SEE SURVEY, BY HARRY S. JOHNSON CO. INC., DATED 8/14/2015 FOR PROPOSED HOME ELEVATIONS & GRADES EXISTING DRAINAGE PATTERNS DRAINING OFF SITE SHALL NOT BE ALTERED. DRAINAGE TO THE EAST & WEST SHALL BE DIRECTED TO THE STREET TO THE SOUTH. PROPOSED IMPERVIOUS AREA IS GREATER THAN EXISTING, HOWEVER NEWLY CREATED IMPERVIOUS SURFACES SHALL BE DIRECTED TOWARDS THE STREET. LESS TOTAL AREA AND LESS IMPERVIOUS AREA WILL RUNOFF TO ADJACENT PROPERTIES IN THE PROPOSED SCENARIO. IMPERVIOUS CALCULATIONS: EXISTING IMPERVIOUS SURFACE = 2,539 SF PROPOSED IMPERVIOUS SURFACE = 2,831 SF ✓� I SET 1 ICON I ,—T LLJ SILT FENCE/BIO-ROLLS (t 3 1 1 I 1 a STABILIZED CONSTR,U-CTION__ENTRANCE____ DENOTES DIRECTION OF DRAINAGE DENOTES EXISTING ELEVATION. X DENOTES EXISTING FENCE DENOTES SILT FENCE DENOTES INLET PROTECTION DEVICE DENOTES TREE I ' PROTECTION DEVICE 4f ER STATE ONE CALL GOPH ERSTATEON ECALL.ORG (800) 252-1166 TOLL FREE (651) 454-0002 LOCAL N 1" =10'-0" 5'-0" 0 10'-0" _ t ID O l 1— 6 l f I 90 0. 1x 9 j i Int . IRON! le SILT FENCE/BIO-ROLLS i 14.0 I �. 1'- {I O I Off• �. .e O / " - I 13.5 7 f. x 34.0 10) _ PROP.. PATIO _. = 7/ c PROPOSED HOUSE & GARAGE S O __ I CO 5 2 22.0 — PROP. STAIRS o / 7,s - / 25.5' = ' / — PROPOSED — J , WALL 898.1 99.0/ 4x F a W3, rq 89 d ( I / I TREE PROTECTION, TY�. 'clf -.__ fes. ��• - _ ._.__. I - / Y I,. SET, IRON SILT FENCE/BIO-ROLLS ,... 9 V.8. SHEE D I_� � 0 O R '. IV / 01 I / l / 00 I77- ~�Ii IEO L_0 0 R` I Imo) E L E V, w_._ 9 0 Z,°/ 1 \ ; TREE TO BE REMOVED 5- i All ME an m MR R. % lb 5 INLET PROTECTION AT � _ NEAREST DOWNSTRAM , OC E K CONSTRUCTION � � C� � -"- _ ENTRANCE, TYP. CATCH BASINS (2) 'c BITUMINOUS FOUND BIT.IMINOUS6T V , _H 4 w. �g / H' --,J BENCHMARK TOP Oom N!!_ ELEV. x-89 x'.35 G R O U P 4931 W. 35TH ST. SUITE 200 ST. LOUIS PARK, MN 55416 CivilSiteGroup.com MPat Sarver Matt Pavek 763-213-3944 952-250-2003 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. MaTthew R. Pavek DATE 8/31/15 LICENSE NO. 44263 ISSUE/SUBMITTAL SUMMARY REVISION SUMMARY STORM WATER MANAGEMENT & EROSION CONTROL PLAN C1.0 w ® Leb 7-4 uj LL 9 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. MaTthew R. Pavek DATE 8/31/15 LICENSE NO. 44263 ISSUE/SUBMITTAL SUMMARY REVISION SUMMARY STORM WATER MANAGEMENT & EROSION CONTROL PLAN C1.0