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Home My WebLink AboutR-370103EROS /ON CONTROL NOTES SW 1/4 OF SEC. 20, TWP. 23N.,__RGE. 05E., W.M. , ," " SSMH ,7095 1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - 97E IMPROVEMENTS, SURFACE WATER UTILITY, AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES RE57R1CT014S CHANNELS -" s ' " 8" PVC lE 280.07 (IN E),, 1� WASTEWATER UTILITY, WATER U77UTY, AND TRANSPORTATION PLANS OR RETENTION FACIUDES " 8 P,VC It 279:69 (OUT W) i C 2 BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE - CONSTRUCTION MEETING 8. ANY AREAS OF EXPOSED SOILS INCLUDING ROADWAY EMBANKMENTS THAT WILL NOT BE DISNRBED ' �' C9 itl MUST BE HELD WITH THE CITY OF RENTON, PUBLIC *VRKS DESIGN ENGINEER. FOR TWO DAYS DURING THE MET SEASON (OCTOBER IST 7ROUGH MARCH 307H) OR SEVEN DAYS .. ' 10CB -4 TYPE' II " 3 THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION PRESERVATION AS PRESCRIBED DURING THE DRY SEASON (APRIL IST TOUGH SEPTEMBER 30) SHALL BE IMMEDIATELY STABIUZED WITH z ON THE PLAN(S) SHALL BE CLEARLY FLAGGED BY SURVEY TAPE OR FENCING IN THE THE APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING PLAS77C COVERING` ETF). " (` 12" CMP IE 288'.2 (N E) FIELD PRIOR TO CONSTRUCTION IN ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN 9, MET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION LOT 1 CONNECT PROPOSED 12 "„CMP IE X288.57 (OUT -w) - MANUAL AND OBSERVED DURING CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE SITES CLEARING BETWEEN OCTOBER 1 AND MARCH 30 INCLUSVIE UNLESS OTHERWISE APPROVED BY THE C86 (DISCHARGE , BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE C17Y TIHROUGH AN ADJUSTMENT PROCESS. S.P. LUA -96- 1 49 -SHPL 8 MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR 7HE DURATION OF CONSTRUCTION. 10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE WATER MONITORING POINT) 4. STABILIM) CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION DESIGN MANUAL. VOL, 1 13, P. 213 6" PVC O 2X:;M/N AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES SUCH AS CONS7RUC7E0 11. ANY AREA NEEDING ESC MEASURES, NOT REWIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WHEEL WASH SYSTEMS OR WASH PADS MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE WITHIN SEVEN (7) DAYS KEPT CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR 7HE OURA RON OF 7HE 12, THE ESC FACILITIES DN INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF ONCE A " PROJECT. MONTH OR W7H /N 24 HOURS FOLLOWING A STORM EVENT. RL fER "CONE GU i I,. S ALL REQUIRED SEDIMEN7ATION/EROSON CON7ROL FACIU7ES MUST BE CONSTRUCTED AND IN 13. AT NO 71ME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED 70 ACCUMULATE WITHIN SEE DETAIL .ON „ ___J OPERATIOV PRIOR TO LAND CLEARING AND /OR CONSTRUCTION TO PREVENT 7RANSPORTA77ON OF A CATCH BASIN. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PR /OR 70 PAVING J i,1 Zvi h SEDIMENT 70 SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERRES. ALL EROSION THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM AND SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNRL SUCH TIME SYSTEM. THAT CLEARING AND /OR C0NS7RUC770N IS COMPLETE AND P07EN77AL FOR ON -SITE EROSION HAS 14, DURING THE 77ME PERIOD OF OCTOBER IST THROUGH MARCH 30TH ALL PROJECT DISTRIBUTED SOIL PASSED. THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT AND ADD /TIONS 70 AREAS GREATER, THAT ARE 7O BE LEFT UN- WORKED FOR MORE THAN 12 HOURS SHALL BE COVERED 11 B MULCH SODDING OR PLASDC COVERING, • i EROSION 1AND SE ON THE R Y USED CONTROL SYSTEMS SHALL BE E ESPONSIB/UTY OF THE PERMl7EE. 6. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS DEPICTED ON A THIS DRAWING ARE INTENDED TO BE 15. ANY PERMANENT THEN NECESSARY ERN FACILITY USED AS A TEMPORARY LL PROVIDE BASIN SHALL MINIMUM REQUIREMENTS 70 MEET UN IPECTLD OR SEASONAL CONDI7IONS DDATIDZ& THE PERM7FE SHALL ANTICIPATE THAPROGRESSES ORE EROSION A40DIFIED WITH IF THE ERMANEN SON CONTROL IS TO FUNCRONUL 77MA TELY AN lN�7RA77ON ., ' - ., W AND SEDIMENTATION CONTROL FACIU77ES WILL BE NECESSARY TO ENSURE COMPLETE SILTATION CONTROL SYSTEM, THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES -. CCE NG LIMlis ON THE PROPOSED 97E DURING THE COURSE OF CONS7RUCTIOA; IT SHALL BE THE OBLIGATION AND ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY, ( ) CD RESPONSIBILITY OF THE PERMI7EE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREA TED BY THE 16. PRIOR r0 THE BEGINNING OF THE WET SEASON (OCT 1), ALL DISTURBED AREAS SHALL BE -1 Q ACTIVITIES AND 70 PROVIDE ADDITIONAL FACILITIES OVER AND ABOVE MINIMUM REQUIREMENTS AS MAY REVIEWED 70 IDEN77FY WHICH ONES CAN BE SEEDED IN PREPARATION FOR THE WINTER RAINS BE NEEDED TO PROTECT ADJACENT PROPERTIES AND WA 7ER QUALITY OF THE RECEIVING DRAINAGE DISTURBED AREAS SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE MET SEASON. / ,v" • r0 SYSTEM. A SKETCH MAP OF THOSE AREAS TO BE SEEDED AND THOSE AREAS 70 REMAIN UNCOVERED ,,,/ g2 I / �� 7, APPROVAL OF THIS PLAN IS FOR EROSON/SEDIMENTATION CONTROL ONLY, IT DOES NOT CONSTI7U7E SHALL BE SUBMITTED TO 774E CITY OF RENION FOR RENEW SED /MEND TRAP `i ry FITTER f,ABR /C fENl7r1G 0 ry°6 ALONG gDGE OF NGPA I Z [lMl ) SEE jDE AIL xL , � ROIKC CHE( O:C Ile DAMS, ON 22 /. A Gj1GN - -r AT 5 ' " "flP a s£cnoN of c $� SWALE'OR. as NEEDED - - " E1� To SRCCEPT OR SWALE ' T TRAP 1 r O CATCH BASIN P [-I - - 3 . : .. .... - - .•,. SEE DETAIL ON C2.2 (TIP) y ` FILTER CONE OU11ETi- INSTALL Z NEW:6' PVC PIPE AT MIN -_ , E'I W SLOPE: CONSTRUCT AA ul I�i N. c� F TEMPORARY CONNECTION 70 ,V+ �j EVS77NO ti4T�QRAl DETAILS ON 4 CB AZI16 Ij .,. ,; 8" CMP IE 286.29 (IN -S) _- •• 9 4" CPP IE 286.42 (OUT - .E' r / �I /' 1 (UNDEVELOPED) 56 AC ACRES " '' .r " . �^PR pE�- 1ENPOR11�' M z r � , TOP 140 : I�Ir %: ..'� ,�,✓ = raP288.?5 1 I. �\ _.. -, A v ,� PdS -12" GONG 1E.284.91 (IN -E) i 1 ., II IST !' t � 8" CMP IE 2 _ 12 "GONG. 1E- 284.36(O(/7 , _ -J^•� r4r r.y /�'�I P /ii -a' CARP. IE 285.3 IN' � > INTERCEPTOR SWALE'-TO PROVIDE CATCH a SEDIMENT TRAP 2 SIA7 PRO 7EC7/ON €� SEDIMENT TRAP 2 BA l (6 SF) 0 FOR PATIO DRAINS OF SOMH 7260 TOP 312.00 EX /STING ASPHALT OR/Vfy r I 18" CONC. lE 302.88 RETAIN AND USE AS O LZ N2" RfSTRlCON lE 303.08 CA PCH PROTECT! �`� • TOO 1 ' �CONSTRUCTION ENTRANCE Jr"1 , M ,� � ��'� , /1��' 6" PVC IE 30.130 e -�'' (np)L ON �I CLEARING UMI7S (I)P) PROVIDE MULCHING OR NOTE: ALL SEDIMENT TRAPSAWNOFF S70RAGE HAY 70 STAB/UZE LOCA71ONS AECONTRACTOR ECOWMEIVDA71ONS FOR THE _ DIS7URBED SOILS REQUIRED (TYP) AS FACILITIES OR EMPLOY 7ERNATE STORAGE THESE (Er. BAKER TANKS) WITH CITY INSPECTOR APPROVAL NOTE' DUE TO I7S SIZE, 7H /S PRO,/ECT MUST OBTAIN COVERAGE UNDER THE NPDES BASELINE PERMIT FOR DISCHARGE OF STORMWA TER RUNOFF DURING CONS7RUC770N. A SEPARATE STORM WATER POLLUTION PREVEN77ON PLAN (SNPPP) HAS BEEN DEVELOPED FOR THIS PROXCT, INCORPORATING 7HE TEMPORARY EROSION CONTROL MEASURES DEPICTED HEREON. THE CONTRACTOR SHALL OBTAIN A COPY OF THE NPD£S PERMIT AND THE SNPPP AND REFER 70 IT FOR ADD17101VAL REQUIREMENTS AND GUIDANCE RELATED 7O CONS7RUC77ON PERIOD STORM WATER MANAGEMENT - PAR7ICULARLY MONITORING REQUIREMENTS AND SUPPLEMENTAL MEASURES TO BE IMPLEMENTED SHOULD S17E CON91770NS WARRANT ADDITIONAL PROTEC770N. SPEC /AL EROS /ON CONTROL NOTES A. THE SOIL MOISTURE HOLDING CAPACITY OF ALL NEW PERVIOUS SURFACES THAT AT PROJECT COMPLETION WILL NOT BE COVERED BY IMPERVIOUS SURFACE OR INCORPORATED INTO A DRAINAGE FACILITY MUST BE PROTECTED. THE DUFF LAYER AND NATIVE TOPSOIL SHALL BE RETAINED IN AN UNDISTURBED STATE TO THE MAXIMUM EXTENT FEASIBLE S. ANY DUFF LAYER OR TOPSOIL REMOVED DURING GRADING STALL BE STOCKPILED ONSTE IN A DESIGNATED, CONTROLLED AREA NOT ADJACENT TO PUBLIC RESOURCES AND CRITICAL AREAS THE MATERIAL SHALL BE REAPPLIED TO 07HER PORTIONS OF THE SITE WHERE FEASIBLE C. THE SOIL IN ANY AREA THAT HAS BEEN COMPACTED OR THAT HAS HAD SOME OR ALL OF THE DUFF LAYER OR UNDERLYING TOPSOIL REMOVED SHALL BE AMENDED TO MITIGATE FOR LOSS OF MOISTURE- HOLDING CAPACITY, THE AMENDMENT SHALL TAKE PLACE BETWEEN MAY 1 AND OCTOBER 1. REPLACED TOPSOIL SHALL HAVE ORGANIC MATTER CONTENT BETWEEN 8 AND 13 PERCENT DRY WEIGHT AND A PH SUITABLE FOR THE PROPOSED LANDSCAPE PLANTS. 50MH #7260 TOP 312.00 78" CONC. IE 302.88 DRAIN SYS� PER. 8" PVC IE 323.30 EXISTING MULTI - FAMILY 01 CB -6 BUILDING SHEET C3.0 RIM 310.45 12" CMP IE 303.77 (IN -SE 18" CMP IE 303.21 (OUT -NW 559H#7263 C�OpNNE/CI(T717 ROPPSED 8" PVC IE 301.70 (OUT -W) V , 8" P" 'r an, Rn i WV MONITORING NT) 0! a n n � n p b m 0 U x i a C. m a o a ,OS � o Z A a °o p o % N o� 8 M a s N� y 00 m g a a0 q f U 00 .� p a4 Z �I CLEARING UMI7S (I)P) PROVIDE MULCHING OR NOTE: ALL SEDIMENT TRAPSAWNOFF S70RAGE HAY 70 STAB/UZE LOCA71ONS AECONTRACTOR ECOWMEIVDA71ONS FOR THE _ DIS7URBED SOILS REQUIRED (TYP) AS FACILITIES OR EMPLOY 7ERNATE STORAGE THESE (Er. BAKER TANKS) WITH CITY INSPECTOR APPROVAL NOTE' DUE TO I7S SIZE, 7H /S PRO,/ECT MUST OBTAIN COVERAGE UNDER THE NPDES BASELINE PERMIT FOR DISCHARGE OF STORMWA TER RUNOFF DURING CONS7RUC770N. A SEPARATE STORM WATER POLLUTION PREVEN77ON PLAN (SNPPP) HAS BEEN DEVELOPED FOR THIS PROXCT, INCORPORATING 7HE TEMPORARY EROSION CONTROL MEASURES DEPICTED HEREON. THE CONTRACTOR SHALL OBTAIN A COPY OF THE NPD£S PERMIT AND THE SNPPP AND REFER 70 IT FOR ADD17101VAL REQUIREMENTS AND GUIDANCE RELATED 7O CONS7RUC77ON PERIOD STORM WATER MANAGEMENT - PAR7ICULARLY MONITORING REQUIREMENTS AND SUPPLEMENTAL MEASURES TO BE IMPLEMENTED SHOULD S17E CON91770NS WARRANT ADDITIONAL PROTEC770N. SPEC /AL EROS /ON CONTROL NOTES A. THE SOIL MOISTURE HOLDING CAPACITY OF ALL NEW PERVIOUS SURFACES THAT AT PROJECT COMPLETION WILL NOT BE COVERED BY IMPERVIOUS SURFACE OR INCORPORATED INTO A DRAINAGE FACILITY MUST BE PROTECTED. THE DUFF LAYER AND NATIVE TOPSOIL SHALL BE RETAINED IN AN UNDISTURBED STATE TO THE MAXIMUM EXTENT FEASIBLE S. ANY DUFF LAYER OR TOPSOIL REMOVED DURING GRADING STALL BE STOCKPILED ONSTE IN A DESIGNATED, CONTROLLED AREA NOT ADJACENT TO PUBLIC RESOURCES AND CRITICAL AREAS THE MATERIAL SHALL BE REAPPLIED TO 07HER PORTIONS OF THE SITE WHERE FEASIBLE C. THE SOIL IN ANY AREA THAT HAS BEEN COMPACTED OR THAT HAS HAD SOME OR ALL OF THE DUFF LAYER OR UNDERLYING TOPSOIL REMOVED SHALL BE AMENDED TO MITIGATE FOR LOSS OF MOISTURE- HOLDING CAPACITY, THE AMENDMENT SHALL TAKE PLACE BETWEEN MAY 1 AND OCTOBER 1. REPLACED TOPSOIL SHALL HAVE ORGANIC MATTER CONTENT BETWEEN 8 AND 13 PERCENT DRY WEIGHT AND A PH SUITABLE FOR THE PROPOSED LANDSCAPE PLANTS. z G SCALE: 1"= 20' O 10 20 40 f\ v / R- 310103 COCA ON OF EVS77NG UTIU7IES SHONN IS APPROXIMATE AND MAY NOT BE ACCURATE OR ALL INCLUSIVE IT IS THE CON7RAC7OR'S RESPONSIBILITY 70 FIELD VERIFY LOCA77ON OF U77LI77ES PRIOR 70 PROCEEDING WITH C0NS7RUC770N. YOU MUST CALL 1- 800- 424 -5555 NOT LESS 7HAN 2 FULL BUSINESS DAYS BEFORE BEGINNING EXCAVA77ON NHERE ANY UNDERGROUND U77LI77ES MAY BE LOCATED. FAILURE 70 DO SO COULD MEAN BEARING SUBSTAN71AL REPAIR COSTS t i r (>lpm rn 50MH #7260 TOP 312.00 78" CONC. IE 302.88 12" RESTRIC77ON IE 303.08 8" PVC IE 323.30 EXISTING MULTI - FAMILY 01 CB -6 BUILDING RIM 310.45 12" CMP IE 303.77 (IN -SE 18" CMP IE 303.21 (OUT -NW 559H#7263 RIM 310.53 8" PVC IE 301.70 (OUT -W) V , 8" P" 'r an, Rn z G SCALE: 1"= 20' O 10 20 40 f\ v / R- 310103 COCA ON OF EVS77NG UTIU7IES SHONN IS APPROXIMATE AND MAY NOT BE ACCURATE OR ALL INCLUSIVE IT IS THE CON7RAC7OR'S RESPONSIBILITY 70 FIELD VERIFY LOCA77ON OF U77LI77ES PRIOR 70 PROCEEDING WITH C0NS7RUC770N. YOU MUST CALL 1- 800- 424 -5555 NOT LESS 7HAN 2 FULL BUSINESS DAYS BEFORE BEGINNING EXCAVA77ON NHERE ANY UNDERGROUND U77LI77ES MAY BE LOCATED. FAILURE 70 DO SO COULD MEAN BEARING SUBSTAN71AL REPAIR COSTS t i r (>lpm rn CITY OF ENTON Approved by Date: . 3 /.1 Approved by: Date: Approved by: Date: Approved by: Date: c6 A- 3 70103 2013 TRIAD 1� TRIAD ASSOCIATES 12112115th Ave. NE Kiddand, WA 980341923 425.821.8448 425.821.3481 fax 800.408.0756 U1 flee v Anadassociates.net 2 2 0 .4 3 �Q 2 V Fez 2 W 0 �W a TNu m c X ♦0 0 V , V yuy 13k5 R1 DD o C ga ga o s s � �Ca °z 7RF"Y r. LWEAV, PIS MAW S HAARISON, PLS PROJSCI' SORRM I0:VI N a FLW^ PE PBWSCr BNGM= OIafSE Li'7N. a!A PBDB3Cr » dBCBT[61,T MST SUBy11TAL DA48: 101`15112 SLAT ' MIL' 1 =20' W.WIA mw NOT TAM U1N/SS SIGNED M DA18D JOB NO. 09 -029 sBnr NO. C2.00 16A �1 'V y' t V , e i CITY OF ENTON Approved by Date: . 3 /.1 Approved by: Date: Approved by: Date: Approved by: Date: c6 A- 3 70103 2013 TRIAD 1� TRIAD ASSOCIATES 12112115th Ave. NE Kiddand, WA 980341923 425.821.8448 425.821.3481 fax 800.408.0756 U1 flee v Anadassociates.net 2 2 0 .4 3 �Q 2 V Fez 2 W 0 �W a TNu m c X ♦0 0 V , V yuy 13k5 R1 DD o C ga ga o s s � �Ca °z 7RF"Y r. LWEAV, PIS MAW S HAARISON, PLS PROJSCI' SORRM I0:VI N a FLW^ PE PBWSCr BNGM= OIafSE Li'7N. a!A PBDB3Cr » dBCBT[61,T MST SUBy11TAL DA48: 101`15112 SLAT ' MIL' 1 =20' W.WIA mw NOT TAM U1N/SS SIGNED M DA18D JOB NO. 09 -029 sBnr NO. C2.00 16A