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EROSION AND SEDIMENT CONTROL NOTES
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING
SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY REFERRED TO AS THE CITY, THE APPLICANT,
AND THE APPLICANT'S CONTRACTOR.
2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY
(ECOLOGY) CONSTRUCTION STORMWATER GENERAL PERMIT, IF IT IS REQUIRED FOR THE PROJECT.
THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO
ECOLOGY ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT.
3. THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED
STEPS THAT SHALL BE FOLLOWED FROM CONSTRUCTION COMMENCEMENT TO POST -PROJECT CLEANUP
IN 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 SWDM) PRIOR TO THE START OF
CONSTRUCTION. DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS
SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC
SUPERVISOR FOR THE DURATION OF CONSTRUCTION.
5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION
AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED
WHEEL WASH SYSTEMS OR WASH PADS, MAY BE 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 THOROUGHLY AT
THE END OF EACH DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT
SEDIMENT FROM ENTERING WATERS OF THE STATE.
6. WASHOUT FROM CONCRETE TRUCKS SHALL BE PERFORMED OFF -SITE OR IN DESIGNATED CONCRETE
WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE TRUCKS ONTO THE GROUND, OR TO STORM
DRAINS OR OPEN DITCHES. ON -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 TO LAND CLEARING
AND/OR 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 AND/OR CONSTRUCTION IS COMPLETE AND POTENTIAL
FOR ON -SITE EROSION HAS PASSED. ALL ESC BMPS SHALL BE 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, ENHANCEMENT, AND REMOVAL
OF ESC BMPS SHALL BE THE RESPONSIBILITY OF THE APPLICANT.
B. 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 CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL
CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE 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 CONDITIONS THAT MAY BE 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.
11. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER 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 1ST THROUGH APRIL 30TH) OR SEVEN DAYS
DURING THE DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED
WITH 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 30TH, 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 24 HOURS FOLLOWING A STORM EVENT. INSPECTION 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 DOWNSLOPE AND WITHIN
500 FEET OF A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET
WILL BE CONVEYED TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY
INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING CONDITION.
17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP.
ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING
OPERATION SHALL NOT FLUSH SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM.
1B. 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 FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT
LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY.
19. AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING STORMWATER FACILITIES OR ON -SITE BMPS
(AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT, ETC.) SHALL BE CLEARLY FENCED AND
PROTECTED USING ESC BMPS TO AVOID SEDIMENTATION AND COMPACTION DURING CONSTRUCTION.
20. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST). 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 OF 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 WILL 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 ROCKERIES IN CITY ROAD
RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF
ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
DomSign Envelope
1. CONDRIONSOFUSE
1.1. SILT FENCE MAY BE WED DOWNSLOPE OFALLDISNRMDAREAS.
r2. DTOIREXT CONCENTRATED ROWS NOR IS IT INTENDEDTOTREAT 303srPNTIALAKKNI N1s OF OVEMAND FLOW.ANYCONCENTMTEO
FLOW MUST 1BE CONYEYNEO THROUGH THE DRAINAGE SYSTEM TO A SEDIMENT TRAP OR PCNO.
2. DEBIGNANDNSTAWTpMSPEGIFIOATIONS
2.1. THE GFbFX21LE USED MUST MEET THE STANDARD LISTED BELLOW. A COPY OF ME MANUFACTURERS FASNIC SPECIFICATIONS MUST BE AVAIIAPLE ON SITE.
AOS IAS1M b]51)
30I00 SIEVE SIZE IS WO.15mm) FOR SILT FI
50.1L0 SIEVE SI2E (0.300.1 Snm)FO0.0TIE0. EARWIGS
WAlE0. PERMITTIVITY IASTM GM91)
O02 SEC MINIMUM
W ASTENALESTRENGTHOSTMW&T2)
ISO LEE, MIN, FOR EXTRA, STMENGTR FARM
ISO LI S. MIN, SON STANDARD STRENGTH FABRIC
OMAN TENSILE ON µarm ww2l
I .w WAS, DYwEp
ULTRAVIOLET RESISTANCE (ASTM NEWS)
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22. STANDARD STRNISMI FABRIC REM I RES WIRE BACKING TO INCREASE ME STRENGTH OF ME FENCE. WIRE BACKING OR CLOSER POST SPACING MY BE REM DIED
FOR EXTRA STRENGTH FABRIC IF FIELD PERFORMANCE WARRANTS A STRONGER FENCE.
2& WHERE TIE FENCE IS INSTALLED, THE MORE S141L NOT BE STEEPER THAN 2HAV
24 IF A TYPICAL SILT FENCE IS USED, ME STANDARD~ TRENCH MAY BE REDUCED AS LONG AS ME BOTTOMS INCHES OF THE SILT FENCE FABRIC IS WELL BURIED AND
SECURE IN A TRENCH THAT STABILIZED DIE FENCE ANT DOW NOT ALLOW WATER TO BYPASS CR UNDERMINE DIE SILT FENCE.
25, FILTER FABRC FENCER SHALL BE INSTALLED ALONG CONTOURS WHENEVER POSSIBLE.
3. MAINTENANCE ST.WDNNS
ANY DAMAGE SHALL BE REPAIRED IMMEDIATELY.
2 IF CONCENTRATED FLOWS ARE EVIDENT URN I LL OF THE FENCE, THEY MUST BE INTERCEPTED AND CONVEYED TO A SEDIMENT TRAP OR POND.
33. IT IS IMPORTANT TO CH ECK THE UPHILL RIDE OF THE FENCE FOR WAR OF ME FENCE CLOGGI NO AN DMRING AS A BGRRI IN TO FLOW AND MEN CAUSING
CRAN NELWTION OF FLOWS PARALLEL TO THE FENCE. I F THIS OCCURS, REPLACE THE FENCE OR REMOVE THE TRAPPED SEDI MEW.
3.4. SEDIMENT MUST BE REMOVED WN EN SEDIMENT IS B INCHES HIGH.
3.IT IF THE FILTER FABRIC IGEOTEXTLEI HAD DETERIORATED DUE TO ULTRAVIOLET BREV(OOWN. IT SHALL BE REPLACED.
PUBLIC WORKS F ovm:
DEPARTMENT
SILT FENCE �GqZ 9/z8/zo18Tl
DETAIL 1
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DKSI Envelope lD: 6EECF5B64102A4E4A-B436-A311AA638878
SEDIMEN'
DRAINAGES DAIS
(RECTANI
B
SECTION VIEW
ISOMETRIC VIEW
DEVICE
NOTES:
I PROTECTION SHALL BE PROVIDED FOR ALL STORM GRAIN INLETS DOWNSLOPE AND WITHIN AD FEET OF A DISTURBED OR
CONSTRUCTION ABFA UNITES THE RU NOSE THAT ENTERS THE CATCH BASIN WILL 9E CONVEYED TO ASEDIMENT FOND OR TRAP.
2. I SUIT PROTECTION SHALL BE USED TO PROTECT THE DRAINAGE SYSTEM.
3. DIE CONTRI BUNNG DRAINAGE AREA MUST GOT BE" HOW THAN ONE ACRE.
4. SUE W E BELOW INLET GRATE DEICE URGE) FOR THE STERAWATER STRUCTURE IT WTLL SERVICE,
S. ME SIDE SHALL HAVE A WILT IN HIGILFLGW RELIEF SYSTEM(OVERFLOW BYPASS).
B. ME RETRIEVAL SYSTEM MUST ALLOW REMOVAL OF THE ROD WITHOUT SPILLING ME COLLECTED MATERIAL.
7. PERFORM MAI STRANGE IN ACCORDANCE WTM STANDARD SPECI FICTION"" 3CK
S. ANY SEDIMENT IN ME CATCH RUNS INSERT SHALL BE REMOVED WHEN ME SEDIMENT HIM FIUFD ONE-THIRD OF THE AVMILA E
STORAGE. THE FILTER MEDIA FOR THE INSERT SHALL BE CLEANED OR REPLACED AT LEAST MONTHLY.
PUBLIC WORKS DEPARTMENT CATCH BASIN INSERT
DETAIL 2
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WO NUMBER: 141005363
REVISION DESCRIPTION:
REVISED PER CITY PERMIT REVIEW COMMENTS
ENGINEER
GAz 9/28/2018 I B:45 Al
DATE
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DEVELOPMENT ENGINEERING O Know what's below.
jchavez 07/26/2021 Call before you dig.
CITY OF RENTON R-417004
TEMPORARY EROSION/SEDIMENT
CONTROL NOTES AND DETAILS
SHUFFLETON SUBSTATION
PUGET SUBSTATION
• SOUND ENGINEERING
ENERGY DEPARTMENT
NONE CLASS: TESC
NO: D-20892-02tlgn
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