HomeMy WebLinkAboutR-419002NW 1/4 OF THE NW 1/4 AND THE NE 1/4 OF THE NW 1/4 SECTION 9, TOWNSHIP 23 NORTH, RANGE 05 EAST, W.M.
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CITY OF RENTON EROSION 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 APPLICANTS
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 PLAN(S) SHALL BE CLEARLY DELINEATED BY FENCING AND PROTECTED IN
THE FIELD IN ACCORDANCE IWTH 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 UNRLSUCH
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.
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. 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.
CONSTRUCTION SEQUENCE:
ABBREVIATIONS
16. BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS
PER THE CITY STANDARD PLAN 216.30 SHALL BE PROVIDED FOR ALL STORM DRAIN 1. PRE -CONSTRUCTION MEETING. APPROX APPROXIMATELY
INLETS DOWNSLOPE AND WITHIN 500 FEET OF A DISTURBED OR CONSTRUCTION BC BOTTOM OF CURB
AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED TO A 2. POST SIGN WITH NAME AND PHONE NUMBER OF CSWPP/ESC SUPERVISOR (MAY BE BOTTOM OF EXCAVATION
SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY BE CONSOLIDATED WITH THE REWIRED NOTICE OF CONSTRUCTION). BMP BEST MANAGEMENT PRACTICES
INSPECTED AND REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING BOE BOTTOM OF EXCAVATION
CONDITION. 3. FLAG OR FENCE CLEARING LIMITS. BP BOTTOM OF POND
BW BACK OF WALL
17. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF 4, INSTALL CATCH BASIN PROTECTION AND STORMWATER BMP AREA PROTECTION CB CATCH BASIN
THE CATCH BASIN SUMP. ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE AS REQUIRED. CCR COORDINATED CIVIL REVIEW
CLEANED PRIOR TO PAVING. THE CLEANING OPERATION SHALL NOT FLUSH i CENTERLINE
SEDIMENT -LADEN WATER INTO THE DOWNSTREAM SYSTEM. 5. GRADE AND INSTALL CONSTRUCTION ENTRANCE(S).
CO CLEAN OUT
COMM COMMUNICATIONS
18. ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY CDR CITY OF RENTON
SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY ESC BMPS AND SHALL 6. INSTALL PERIMETER PROTECTION (SILT FENCE, BRUSH BARRIER, ETC.). DI DUCTILE IRON
PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO DOE DEPARTMENT OF ECOLOGY
ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE 7. CONSTRUCT SEDIMENT PONDS AND TRAPS . DOM DOMESTIC
TEMPORARY FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES DR DOOR
ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 8. GRADE AND STABILIZE CONSTRUCTION ROADS. EL ELEVATION
ELEC ELECTRICAL
19. AREAS DESIGNATED ON THE PLAN(S) CONTAINING EXISTING STORMWATER FACILITIES 9. CONSTRUCT SURFACE WATER CONTROLS (INTERCEPTOR DIKES, PIPE SLOPE EX/EXIST EXISTING
OR ON -SITE BMPS (AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT, ETC.) DRAINS, ETC.) SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT FD FRENCH DRAIN
SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS TO AVOID DEVELOPMENT. CONSTRUCT SWPPS CONTROLS IN ANTICIPATION OF SCHEDULED FDC FIRE DEPARTMENT CONNECTION
SEDIMENTATION AND COMPACTION DURING CONSTRUCTION. CONSTRUCTION ACTIVITY (E.G., CONCRETE -RELATED PH MEASURES FOR UTILITY, FF FINISHED FLOOR
VAULT OR ROADWAY CONSTRUCTION). FG FINISHED GRADE
20. PRIOR TO THE BEGINNING OF THE WET SEASON (OCTOBER 1ST), ALL DISTURBED FL FLOW LINE
AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR 10. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH APPENDIX D OF FS FIRE SERVICE
SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE THE CITY OF RENTON SURFACE WATER DESIGN MANUAL AND MANUFACTURERS FW FACE OF WALL
SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. AN RECOMMENDATIONSHP HIGH POINT
.
EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO IE INVERT ELEVATION
REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 11. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT LD LANDING
AS SITE CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL AND LF LINEAL FEET
21. PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE LP LOW POINT
STABILIZED TO PREVENT SEDIMENT -LADEN WATER FROM LEAVING THE PROJECT SITE, POLLUTION PREVENTION IS ALWAYS IN ACCORDANCE WITH THE CITYS EROSION LT LEFT
ALL ESC BMPS SHALL BE REMOVED, AND STORMWATER CONVEYANCE SYSTEMS, AND SEDIMENT CONTROL STANDARDS ME MATCH EXISTING
FACILITIES, AND ON -SITE BMPS SHALL BE RESTORED TO THEIR FULLY FUNCTIONING MECH MECHANICAL
CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR 12. COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS MEP MECHANICAL ELECTRICAL PLUMBING
OTHERWISE PERMANENTLY STABILIZED. AT A MINIMUM, DISTURBED AREAS SHALL BE DURING THE DRY SEASON 0 TWO DAYS DURING THE WET SEASON WITH STRAW, MH MANHOLE
SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL WOOD FIBER MULCH, COMPOST, OR EQUIVALENT. MMA METHYL METHACRYLATE
DEVELOP SHORTLY AFTER FINAL APPROVAL. MULCH WITHOUT SEEDING IS ADEQUATE MON MONUMENT
FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST. 13. STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS. NO. NUMBER
NTS NOT TO SCALE
22. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND 14. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. PE POLYETHELYNE
EROSION CONTROL. ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE AS PED PEDESTRIAN
RETAINING WALLS. ALL ROCKERIES IN CITY ROAD RIGHTS -OF -WAY SHALL BE 15. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE PIV POST INDICATOR VALVE
CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE OF STABILIZED AND BMPS REMOVED IF APPROPRIATE. POC POINT OF CONNECTION
ROAD RIGHTS -OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE PSE PUGET SOUND ENERGY
INTERNATIONAL BUILDING CODE. 16. APPLY DUST CONTROL (BMP C140), SAWCUTTING AND SURFACING POLLUTION R RADIUS
PREVENTION (BMP 152). ROW RIGHT OF WAY
RT RIGHT
17. COMPLETE MASS GRADING. SO STORM DRAIN
SQ SQUARE FEET
SS SANITARY SEWER
SSS SANITARY SIDE SEWER
ST SOUND TRANSIT
STA STATION
STD STANDARD
STW STORMWATER
TC TOP OF CURB
TESC TEMPORARY EROSION AND
SEDIMENTATION CONTROL
TP TOP OF POND
TW TOP OF WALL
TYP TYPICAL
W WATER
WQ WATER QUALITY
WSDOT WASHINGTON STATE DEPARTMENT
OF TRANSPORTATION
R-419002
Y g IN COMPLIANCE WITH CITY OF RENTON STANDARDS
y. N DEVELOPMENT ENGINEERING SURFACE WATER UTILITY
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