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STANDARD ESC PLAN NOTES
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT S. ANY HAZARDOUS MATERIALS OR LIQUID PRODUCTS 17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED
ACTIVITY OCCURS, A PRE -CONSTRUCTION MEETING THAT HAVE THE POTENTIAL TO POLLUTE RUNOFF M OF THE CAPACITY OF THE CATCH BASIN SUMP. ALL
SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY SHALL BE DISPOSED OF PROPERLY. CATCH BASINS AND CONVEYANCE LINES SHALL BE
REFERRED TO AS THE CITY, THE APPLICANT, AND THE 9, THE ESC BMPS DEPICTED ON THIS DRAWING ARE CLEANED PRIOR TO PAVING. THE CLEANING
APPLICANTS CONTRACTOR. INTENDED TO BE MINIMUM REQUIREMENTS TO MEET OPERATION SHALL NOT FLUSH SEDIMENT -LADEN
WATER INT(1 THE nC1WNCTRFGM CYCTFM
2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE
ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION
WASHINGTON STATE DEPARTMENT OF ECOLOGY
PROGRESSES AND UNEXPECTED OR SEASONAL
(ECOLOGY) CONSTRUCTION STORMWATER GENERAL
CONDITIONS DICTATE, THE APPLICANT SHALL
PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE
ANTICIPATE THAT MORE ESC BMPS WILL BE
APPLICANT SHALL PROVIDE THE CITY'S COPIES OF ALL
NECESSARY TO ENSURE COMPLETE SILTATION
MONITORING REPORTS PROVIDED TO ECOLOGY
CONTROL ON THE PROPOSED SITE. DURING THE
ASSOCIATED WITH THE CONSTRUCTION STORMWATER
COURSE OF CONSTRUCTION, IT SHALL BE THE
GENERAL PERMIT.
OBLIGATION AND RESPONSIBILITY OF THE APPLICANT
TO ADDRESS ANY NEW CONDITIONS THAT MAY BE
3. THE ESC PLAN SET SHALL INCLUDE AN ESC
CREATED BY THE ACTIVITIES AND TO PROVIDE
CONSTRUCTION SEQUENCE DETAILING THE ORDERED
ADDITIONAL ESC BMPS, OVER AND ABOVE MINIMUM
STEPS THAT SHALL BE FOLLOWED FROM
REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT
CONSTRUCTION COMMENCEMENT TO POST -PROJECT
ADJACENT PROPERTIES AND WATER QUALITY OF THE
CLEANUP IN ORDER TO FULFILL PROJECT ESC
RECEIVING DRAINAGE SYSTEM.
REQUIREMENTS.
4. THE BOUNDARIES OF THE CLEARING LIMITS, SENSITIVE
10.
APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES
AREAS AND THEIR BUFFERS, AND AREAS OF
NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE
VEGETATION PRESERVATION AND TREE RETENTION AS
DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS,
PRESCRIBED ON THE PLAN(S) SHALL BE CLEARLY
CHANNELS, OR STORMWATER FACILITIES.
DELINEATED BY FENCING AND PROTECTED IN THE
11.
ANY DEWATERING SYSTEM NECESSARY FOR THE
FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY
CONSTRUCTION OF STORMWATER FACILITIES SHALL BE
OF RENTON SURFACE WATER DESIGN MANUAL
SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL.
(RENTON SWDM) PRIOR TO THE START OF
CONSTRUCTION. DURING THE CONSTRUCTION PERIOD,
12.
ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY
NO DISTURBANCE BEYOND THE CLEARING LIMITS
EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR
SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE
TWO DAYS DURING THE WET SEASON (OCTOBER 1ST
MAINTAINED BY THE APPLICANT/ESC SUPERVISOR FOR
THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE
THE DURATION OF CONSTRUCTION.
DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH)
5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE
SHALL BE IMMEDIATELY STABILIZED WITH THE
INSTALLED AT THE BEGINNING OF CONSTRUCTION AND
APPROVED ESC COVER METHODS (E.G., SEEDING,
MAINTAINED FOR THE DURATION OF THE PROJECT.
MULCHING, PLASTIC COVERING, ETC.) IN
ADDITIONAL MEASURES, SUCH AS CONSTRUCTED
CONFORMANCE WITH APPENDIX D OF THE RENTON
WHEEL WASH SYSTEMS OR WASH PADS, MAY BE
SWDM.
REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE
13.
WET SEASON ESC REQUIREMENTS APPLY TO ALL
KEPT CLEAN AND TRACK- OUTTO ROAD RIGHT OF WAY
CONSTRUCTION SITES BETWEEN OCTOBER IST AND
DOES NOT OCCUR FOR THE DURATION OF THE
APRIL 30TH, UNLESS OTHERWISE APPROVED BY THE
PROJECT. IF SEDIMENT IS TRACKED OFFSITE, PUBLIC
CITY.
ROADS SHALL BE CLEANED THOROUGHLY AT THE END
OF EACH DAY, OR MORE FREQUENTLY DURING WET
14.
ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT
WEATHER, AS NECESSARY TO PREVENT SEDIMENT
REQUIRING IMMEDIATE ATTENTION, SHALL BE
FROM ENTERING WATERS OF THE STATE.
ADDRESSED WITHIN SEVEN (7) DAYS.
6. WASHOUT FROM CONCRETE TRUCKS SHALL BE
PERFORMED OFF- SITE OR IN DESIGNATED CONCRETE
15.
THE ESC BMPS ON INACTIVE SITES SHALL BE
WASHOUT AREAS ONLY. DO NOT WASH OUT CONCRETE
INSPECTED AND MAINTAINED AT A MINIMUM OR ONCE
TRUCKS ONTO THE GROUND, OR TO STORM DRAINS OR
MONTH OR WITHIN 24 HOURS FOLLOWING A STORM
OPEN DITCHES. ON -SITE DUMPING OR EXCESS
EVENT. INSPECTION AND MAINTENANCE SHALL OCCUR
CONCRETE SHALL ONLY OCCUR IN DESIGNATED
MORE FREQUENTLY AS REQUIRED BY THE CITY.
CONCRETE WASHOUT AREAS.
16.
BEFORE COMMENCEMENT OF ANY CONSTRUCTION
7. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED
ACTIVITY, CATCH BASIN INSERTS PER THE CITY
AND IN OPERATION PRIOR TO LAND CLEARING AND/OR
STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL
CONSTRUCTION TO PREVENT TRANSPORTATION OF
STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500
SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS
FEET OF A DISTURBED OR CONSTRUCTION AREA,
AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE
UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE
MAINTAINED IN A SATISFACTORY CONDITION UNTIL
CONVEYED TO A SEDIMENT POND OR TRAP. ALL CATCH
SUCH TIME THAT CLEARING AND/OR CONSTRUCTION IS
BASIN INSERTS SHALL BE PERIODICALLY INSPECTED
COMPLETE AND POTENTIAL FOR ON -SITE EROSION
AND REPLACED AS NECESSARY TO ENSURE FULLY
HAS PASSED. ALL ESC BMPS SHALL BE REMOVED
FUNCTIONING CONDITION.
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.
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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 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 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
1 ST.
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.
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GENERALNOTES
NOVEMBER 2021
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R-4214238