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STANDARD ESC PLAN 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'S 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 PLAN(S) 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 OR 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.
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 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 1STAND
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 OR ONCE A
MONTH OR WITHIN 24 HOURS FOLLOWING A STORM
EVENT.
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.
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.
ADDITIONAL NOTES FOR PRE -CONSTRUCTION:
SITE PREP
AND TESC LEGEND
1. APPROVED TEMPORARY EROSION AND SEDIMENT
CONTROL (TESC) AND STORMWATER POLLUTION
PREVENTION AND SPILL CONTROL (SWPPS) MEASURES
REMOVE ASPHALT PAVEMENT
ARE TO BE INSTALL AS FIRST ORDER OF BUSINESS AND
MAINTAINED AT ALL TIMES PER APPROVED DRAWINGS
OR AT DIRECTION OF CONSTRUCTION STORMWATER
REMOVE CEMENT CONCRETE PAVEMENT
SUPERVISOR, OR THE PROJECT CERTIFIED EROSION
AND THE SEDIMENT CONTROL LEAD (CECCL) AND THE
PUBLIC WORKS INSPECTOR.
REMOVE CEMENT CONCRETE SIDEWALK
2. THE APPROVED CONSTRUCTION STORM POLLUTION
PREVENTION PLAN (CSWPP) SHALL BE LOCATED ON
SITE AT ALL TIMES.
+++++++++++++
CLEARING AND GRUBBING
3. WEEKLY REPORTS OUTLINING STATUS AND CONDITION
OF EROSION CONTROL PLAN, WITH ANY
................. .
RECOMMENDATIONS OF CHANGE OR REVISION TO
PLANE BITUMINOUS PAVEMENT, 2 INCHES
MAINTENANCE SCHEDULES OR INSTALLATION, ARE
REQUIRED TO BE SUBMITTED BY PROJECT ENGINEER
OF RECORD OR CECSL TO PROJECT MANAGER AND
PUBLIC WORKS INSPECTOR. WEEKLY REPORTS SHALL
// - // ' // - // ' // "
REMOVAL ITEM
INCLUDE PROJECT'S NPDES PERMIT NUMBER(IF
APPLICABLE). SEE STANDARD ESC NOTE 15.
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4. IF DEWATERING FOR SITE IS REQUIRED, ALL SITE
RIGHT-OF-WAY (EXISTING)
CONSTRUCTION STORMWATER DISCHARGE SHALL BE
0
LESS THAN 25 NTU'S IF DISCHARGED INTO WATER OF
THE STATE. ANY PIPE CONVEYANCE SYSTEM THAT
RIGHT-OF-WAY (PROPOSED)
EVENTUALLY DISCHARGES TO A BODY OF WATER IS
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CONSTRUED AS DISCHARGING IN WATER OF THE
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STATE.
• •
TEMPORARY CONSTRUCTION EASEMENT
5. IF DEWATERING IS PROPOSED TO THE CITY SEWER
THEN A PERMIT FROM THE CITY AND KING COUNTY
WILL BE REQUIRED. IF DEWATERING IS PROPOSED TO
❑
INLET PROTECTION - EXISTING CB
A SEWER SYSTEM BELONGING TO ANOTHER SEWER
DISTRICT, CONTACT THAT DISTRICT FOR APPROVAL.
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CONTRACTOR IS STRONGLY ENCOURAGED TO OBTAIN
ALL REQUIRED SEWER DISCHARGE PERMITS IN
INLET PROTECTION - PROPOSED CB
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ADVANCE OF ANY ANTICIPATED NEED TO DISCHARGE
TO A SEWER.
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6. DUST CONTROL SHALL BE IMPLEMENTED AS DIRECTED
SILT FENCE
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BY THE PUBLIC WORKS INSPECTOR.
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7. PROPER REMOVAL OF ALL TESC MEASURES IS
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REQUIRED PRIOR TO PERMIT CLOSEOUT, UNLESS
OTHERWISE APPROVED BY THE PUBLIC WORKS
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INSPECTOR OR PROJECT MANAGER.
8. Only one (1) signal may be constructed at a time, not
multiple locations constructed all at once. Contractor
should identify construction sequence, especially at
newly constructed signalized intersections.The entire
intersection cannot be down the entire process.
9. Access to all Pedestrian vicinities (including
wheelchair ramps, push buttons, and walkways) should
remain at all times during construction and off hours at
signalized intersections
10. Temporary signal heads have to be placed in line
with temporary marked crosswalks. Temporary push
buttons have to be APS and ADA accessible. In
addition, the contractor needs to identity all locations
that may or will have temporary signals.
11. Traffic Control Plan submittal's shall follow WSDOT
Specifications 1-05.3, 1-10.2(2), and City of Renton
Traffic Control Guidelines. In addition to these
specifications, the contractor must identify AM and PM
Peak hours, night work/noise variance
requirements/procedure, WSDOT Closures, other city
project closures/construction conflicts, special events.
12. Procurement (signal poles, video detection,
cabinets) lead time should be identified before
construction and suspensions planned accordingly.
Condition of Approval #7:
Notes added. Add notes
to project specifications.
:]
DEVELOPMENT ENGINEERING
Michael Sippo 09/11 /2024:0R-4214107
AD-READY SUBMITTAL
DESIGNED: APPROVED: METRO TRANSIT CAPITAL DIVISION DATE:
(425) 453-5000 ti1� DRAWN:
G. FRANCO RAP I D RI D E I LINE �uNE 2024
7 W.
1100 112TH AVE NE, SUITE 500 '�~'�`� -cob LQ
King County
BELLEVUE, WA 98004 67 H.JOHNSON
APi CHECKED: PROJECT NO: RENTON SEGMENT DRAWING NO:
33200
SS OISTE4� ��5J. ETULAIN E00566E18 METRO TESC 1 EC.OA
I0NAL F'� CHECKED: CONTRACT N0: SHEET N0: OF
No. REVISION BY APP'D DATE 06/12/24
GENERAL NOTES AND LEGEND NO: 473
K. CHANG YUEN CXXXXXXXX 107