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Home My WebLink AboutR-431507LO T co I O I r) W I- J n rr 0 ��2 v! 0 EROSION / SEDIMENTATION CONTROL NOTES DocuSign Envelope ID: 6EECFSB6-602A-4E4A-B436-A317AAA638878 EROSION AND SEDIMENT CONTROL IESCI STANDARQ PLAN NOTES: THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND SEDIMENT CONTROL (ESC) PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS, THEY SHALL BE ADDED AFTER THE ESC STANDARD PLAN NOTES. 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CON STRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON. HEREBY REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT'S CONTRACTOR, 7. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY (ECOLOGY) CONSTRUCTION SYORMWATER GENERAL PERMIT, IF Fr IS REdUIRE❑ FOR THE PROJECT- THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO ECOLOGY ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT - THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILI NG THE ORDERER STEPS THAT SHALI. BE FOLLOWED FROM CONSTRUCTION COMMENCEMENT TO POST-PRDJECT CLEANUP ON ORDER TO FULFILL PROJECT ESC REQUIREMENTS. 4. THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE AREAS AND THEIR BUFFERS, AND AREAS OF VEGETATION PRESERVATION AND TREE RETENTION AS PRESCRIBED ON THE PLANS) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWCM} PRIOR TO THE START OF CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE FERMITTEI6. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANTIESC SUPERVISOR FOR THE DURATION OF CQNSTRUCTIQN. 5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE DEGIMNING OF CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES. SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY K REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN AND TRACK -OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL BE CLEANED Ti-*ROUGHLY AT THE END OF EACFr DAY- OR MORE FIRE rUENTLY DURING WET WEATHER AS NECESSARY TO PREVENT SEDIMENT FROM ENTERING WATERS OF THE STATE. 6. WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED QFFSITE OR IN DESIGNATED CONCRETE WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE TRUCKS ONTO THE GROUND. OR TO STORM DRAINS OR OPEN PITCHES. QN,F-SITE: DUMPING OF EXCESS CONCRETE SHALL ONLY OCCUR IN DESIGNATED CONCRETE WASHOUT AREAS. 7. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TD LAND CLEARING ANDIOR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL SUCH TIME THAT CLEARING ANDfOR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON -SITE EROSION HAS PASSED. ALL ESC BMPS SHALL 8F REMOVED AFTER CONSTRUCTION IS COMPLETED AND THE SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON -SITE EROSION DOES NOT EXIST- THE IMPLEMENTATION, MAINTENANCE, REPLACEMENT, EPIHANCEMENT, AND REMOVAL OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT- 8. ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF SHALL BE DISPOSED OF PROPERLY. 9. THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET ANTICIPATED SITE CONOITION8. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC E-APS WILL 8E NECESSARY TO ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE APPLICANT TO ADDRESS ANY NEW CONMT10145 THAT MAYBE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM. 10. APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR STORMWATER FACILITIES. 111. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STURMWAkTER FACILITIES SHALL BE SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL, 12. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 18T THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WkTH THE APPROVED ESC COVER METHODS (E.G., SEEDING. MULCHING, PLASTIC COVERING, ETC.) IN CONFORMANCE WITH APPENDIX D OF THE RENTON SWDM. 13. WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL 11TH, UNLESS OTHERWISE APPROVED BY THE CITY. 14. ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS. 15. THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A MONTH OR WITHIN 24HOURS FOLLOWING A STORM EVENT INSPECTLON AND MAINTENANCE SHALL OCCUR MORE FREQUENTLY AS REQUIRED BY THE CITY. 16. BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS ❑OWNSLOPE AND WITHIN 50f EET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF TI+AT EN7ERS THE INLET WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERT$ SHALL BE Pr=RIOWCALLY INSPECTED AND REPLACED A9 NECESSARY TO ENSURE FULLY FUNCTIONING CONDITION. 17. AT NO TIME $HALL $ECNMI=NT ACCUMUL-ATION EXCEED 28 OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYANCE LINES SHALL 6E CLEANED PRIOR TO PP.VING. THE CLEANING OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE VCowNSTREAM SYSTEM, 18. ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY ESC BMPS AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE TEMPORARY PACIUTY SHALL BE ROUGH GRADED SO Tr+AT IHE BOTTOM AND SIDES ARE AT LEAST THREE FEET A8OVF THE FINAL GRADE OF THE PERMANFNT FACILITY. 19. AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING 5TORMWATER FACILITIES OR ON-45ITE BMPS (AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT, ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING E5C BMPS TO AVCIR SEDIMENTATION AND GOMPADTION DURING CONSTRUCTION, 20. PRIOR TO THE BEGINNING OF THE WET SEASON IOCTQBER IST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR SEEDED IN PREPARATION FOR THE WINTER RAINS, DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK DF THE BEGINNING OF THE WET SEASON, AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 21. PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE STABILIZED TO PREVENT SEDIMENT -LADEN WATER FROM LEAVING THE PROJECT SITE, ALL ESC BMPS SHALL BE REMOVED, AND STORMWATER CONVEYANCE SYSTEMS, FACILITIES, AND ON -SITE BMPS SHALL BE RESTORED TO THEIR FULLY FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED. AT A MINIMUM, DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WJLL DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST, 22. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCK E.RIES IN CITY ROAD RIGRTS-OF•WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGWT ,OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILOFNG CODE. UNLESS 0MCkWISr N07D, DRAWING IS NOT TO $CALF (NTSI STD. PLAN - 268.00 WA PUBLIC WORDS EROSION AND SEDIMENT CONTROL PPR URI DEPARTMENT GAZ 9/28/2418 I STANDARD PLAN NOTES ruder wawAmm�xaow ¢ATF STRUCTURAL NOTES- 1 . THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY. PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION. 2. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. Call 2 Working Days Before You Dig 811 Utilities Underground Location Center (ID,MT,ND,OR,WA) ®CONSULTING 2001 32nd Avenue SouthENGINEERS _L L C Suite 200 IS 1+140 Federal Way, WA 98001 FEDERAL WAY (253) 838-8113 www.esmcivil.com LYNNWOOD (425) 297-9900 Civil Engineering Land Surveying Land Planning Public Works I Project Management I Landscape Architecture ESM JOB #41 1-004-023 WET SEASON PROVISIONS NOTE: THE PROJECT EARTHWORK IS LIMITED TO SEASONALLY DRIER PERIODS (TYPICALLY APRIL 1 TO OCTOBER 31) IN ACCORDANCE WITH THE GEOTECHNICAL RECOMMENDATION MADE BY ASSOCIATED EARTH SCIENCES, INC, (DATED JANUARY 18, 2017). NOTE: THE FOLLOWING MEASURES ARE REQUIRED FOR CONSTRUCTION DURING THE WET SEASON (OCTOBER 1 - APRIL 30) IN ADDITION TO THE STANDARD TESC MEASURES. 1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNWORKED WITHOUT COVER MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN (SECTION D.3.2). 2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED FOR MORE THAN 12 HOURS (SECTION D.3.2). 3. COVER MATERIALS SUFFICIENT TO COVER ALL DISTURBED AREAS SHALL BE STOCKPILED ON SITE (SECTION D.3.2). 4. ALL AREAS THAT ARE TO BE UNWORKED DURING THE WET SEASON SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON (SECTION D.3.2.5). 5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS (SECTION D.3.2.1). 6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF DISTURBANCE MUST BE STOCKPILED ON SITE (SECTION D.3.3.1). 7. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES UNLESS THE SITE IS UNDERLAIN BY COARSE -GRAINED SOIL (SECTION D.3.4.2). 8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW (SECTION D.3.5). 9. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW (SECTION D.3.6). 10. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION ACTIVITY NEAR THE SURFACE WATERS (SECTION D.5.3). 11. ANY RUNOFF GENERATED BY DEWATERING MAY BE REQUIRED TO DISCHARGE TO THE SANITARY SEWER (WITH APPROPRIATE DISCHARGE AUTHORIZATION), PORTABLE SAND FILTER SYSTEMS, OR HOLDING TANKS. 12. THE FREQUENCY OF MAINTENANCE REVIEW INCREASES FROM MONTHLY TO WEEKLY (SECTION D.5.4). CONDITIONS FOR WET SEASON CONSTRUCTION 1. ANY CONSTRUCTION THAT WILL RESULT IN DISTURBED AREAS ON OR WITHIN A CRITICAL AREA OR ASSOCIATED BUFFER, SHALL BE SUBJECT TO THE "CRITICAL AREA RESTRICTIONS" CONTAINED IN THE ESC STANDARDS. THESE PROVISIONS INCLUDE PHASING THE PROJECT WHENEVER POSSIBLE SO THAT CONSTRUCTION IN THESE AREAS IS LIMITED TO THE DRY SEASON. 2. DURING CONSTRUCTION, ESC PLANS SHALL BE REVISED AS NECESSARY BY THE ESC SUPERVISOR OR AS DIRECTED BY THE CITY TO ADDRESS CHANGING SITE CONDITIONS, UNEXPECTED STORM EVENTS, OR NON-COMPLIANCE WITH THE ESC PERFORMANCE CRITERIA IN SECTION D.4.1 (P. D-69). IF NON-COMPLIANCE WITH THE ESC PERFORMANCE CRITERIA OCCURS, THE PLAN MUST BE UPDATED WITHIN 48 HOURS (FAILURE TO DO SO COULD RESULT IN A "STOP WORK" ORDER AS DETERMINED BY THE CITY INSPECTOR) OF INSPECTIONS OR INVESTIGATIONS. IMPLEMENTATION OF THE ONSITE CHANGES MUST OCCUR WITHIN 5 DAYS. c�_l11111I111111110SIMIV,,IW-A,6vj:4*�ySOF-Al 3�►•,r_a.11111r_vIII .iv_0m111111111111:axa:►vivi11.z lI1111111111_m:4xety]r_va:0_16��_VE2a*061V11311.. IN THE MAINTENANCE REQUIREMENTS FOR EACH BMP AND IN THIS SECTION. THE ESC SUPERVISOR SHALL REVIEW THE SITE AT LEAST WEEKLY DURING THE WET SEASON, AND WITHIN :45 Af 24 HOURS OF SIGNIFICANT STORMS. IN GENERAL, A SIGNIFICANT STORM IS ONE WITH MORE THAN 0.5 INCHES OF RAIN IN 24 HOURS OR LESS. THE CITY MAY REQUIRE THAT A WRITTEN RECORD OF THESE REVIEWS BE KEPT ON SITE WITH COPIES SUBMITTED TO THE CITY WITHIN 48 HOURS. OICHgFz O P�� OF WACO Sy�N�o�OG 2 m N 50085 STERF'� �sS�ONA L RECORD DRAWINGS NO. REVISION SURVEYED: DESIGNED: BM` 1 DRAWN: CJR CHECKED BY I DATE I AP P R I APPROVED: SCALE: ONE INCH AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY MULCH STANDARDS AND GUIDELINES MULCH QUALITY APPLICATION MATERIAL STANDARDS RATES REMARKS STRAW AIR-DRIED; FREE FROM 2"-3" THICK; 2-3 COST-EFFECTIVE PROTECTION WHEN APPLIED UNDESIRABLE SEED BALES PER 1000 SF OR WITH ADEQUATE THICKNESS. HAND -APPLICATION AND COARSE MATERIAL 2-3 TONS PER ACRE GENERALLY REQUIRES GREATER THICKNESS THAN BLOWN STRAW. STRAW SHOULD BE CRIMPED TO AVOID WIND BLOW. THE THICKNESS OF STRAW MAY BE REDUCED BY HALF WHEN USED IN CONJUNCTION WITH SEEDING. WOOD FIBER NO GROWTH INHIBITING APPROX. 25-30 LBS SHALL BE APPLIED WITH HYDROMULCHER. SHALL CELLULOSE FACTORS PER 1000 SF OR NOT BE USED WITHOUT SEED AND TACKIFIER 1000-1500 LBS PER UNLESS THE APPLICATION RATE IS AT LEAST ACRE DOUBLED. SOME WOOD FIBER WITH VERY LONG FIBERS CAN BE EFFECTIVE AT LOWER APPLICATION RATES AND WITHOUT SEED OR TACKIFIER. COMPOST NO VISIBLE WATER OR 2" THICK MIN.; MORE EFFECTIVE CONTROL CAN BE OBTAINED BY DUST DURING APPROX. 100 TONS INCREASING THICKNESS TO 3". EXCELLENT HANDLING. MUST BE PER ACRE (APPROX. MULCH FOR PROTECTING FINAL GRADES UNTIL PURCHASED FROM 800 LBS PER YARD) LANDSCAPING BECAUSE IT CAN BE DIRECTLY SUPPLIER WITH SOLID SEEDED OR TILLED INTO SOIL AS AN WASTE HANDLING AMENDMENT. SOURCES FOR COMPOST ARE PERMIT. AVAILABLE FROM THE KING COUNTY COMMISSION FOR MARKETING RECYCLABLE MATERIALS AT (206) 296-4439. CHIPPED SITE AVERAGE SIZE SHALL 2" MINIMUM THIS IS A COST-EFFECTIVE WAY TO DISPOSE OF VEGETATION BE SEVERAL INCHES. THICKNESS DEBRIS FROM CLEARING AND GRUBBING, AND IT ELIMINATES THE PROBLEMS ASSOCIATED WITH BURNING. GENERALLY, IT SHOULD NOT BE USED ON SLOPES ABOVE APPROX. 10% BECAUSE OF ITS TENDENCY TO BE TRANSPORTED BY RUNOFF. IT IS NOT RECOMMENDED WITHIN 200 FEET OF SURFACE WATERS. IF SEEDING IS EXPECTED SHORTLY AFTER MULCH, THE DECOMPOSITION OF THE CHIPPED VEGETATION MAY TIE UP NUTRIENTS IMPORTANT TO GRASS ESTABLISHMENT. VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATU M CITY OF RENTON Planning/Building/Public Works Dept. R-431507 IN COMPLIANCE WITH CITY OF RENTON STANDARDS SOPHIE JO SHORT PLAT GRADING & T.E.S.C. DETAILS & NOTES UTILITY PERMIT # DATE: 02/18/25 FIELDBOOK: PAGE: GR-02 SHEET: OF:23