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IF 1 TER f: I €GEOTEM- LE) HA&DET'EI T ' 1� T ET '�<<>1 € l i ' � Aal).
CITY OF RENTON EROSION CONTROL NOTES:
1. THESE NOTES SHALL APPEAR FOR ALL PROJECTS - SITE IMPROVEMENTS,
x; SURFACE WATER UTILITY WASTEWATER UTILITY, WATER UTILITY, AND
TR44SWATM PLANS:
..
2. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS A
f '
PRE CONSTRUCTION MEETING MUST BE HELD WITH THE CITY OF RENTON,
`�.PUBLIC WORKS DESIGN ENGINEER.
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mwe" 4mrVFW"I 1(- 3. THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION
PRESERVATION AS PRESCRIBED ON THE S1/ SHALL BE CLEARLY FLAGGED
' BY SURVEY TAPE OR FENCING IN THE FIELD PRIOR TO CONSTRUCTION IN
ACCORDANCE WITH APPENDIX D OF THE SURFACE WATER DESIGN MANUAL AND
,'1:.
( OBSERVED DURING CONSTRUCTION. DURING THE,
CONSTRUCTION PERM NO
AT TOE Whiff! �.
FIt
DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE
_ CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ESC SUPERVISOR
FOR THE DURATION OF CONSTRUCTION.
4. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGIN IW
OF CONSTRUCTION AND MAINTAINED FOR THE MOTION OF THE PROJECT.
ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR
WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPI
CLEAN AND TRACK OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE
DURATION OF THE PROJECT.
�. �arMlrllrl� �
cowwa MAY ft UMD ON: DWWWWAREM-TH&T P&MMM COVM:k*Aa~ F"L LANK '1`1�i1�I 30#AYII .
• �= CV? 5. ALL REWIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST BE
11
R; . I #14A�Y t f.,#L I .'-� 0 �►S'TO � I' � IeFi� Aii1� >I
m` + + x r CONSTRUCTED AND IN OPERATION PRIONS TO LAND CLEARING ANO/OR
'L.4, 'rlilltlMll 'I"# irrsi # r I L EIS �'7fl i'#' 1 1r1r [ JL ►Ar l `:11I1J 1 . � p:ilwrcL" �5I Atm'
rl~ CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE
WATER, DRAINAGE SYSTEMS AND ADJACENT PROPERTIES. ALL EROSION AND
A. I�� ��1,�1� 1A �i�r w lel
SEDIMENT FACILITIES SHALL BE MAINTAINED IN A SATISFACTORY CONDITION
. T A WURELY A c r I 1 i Imo' A
T01FRPOWR UNTIL SUCH TIME THAT CLEARING AID/OR CONSTRUCTION IS COMPLETE AND
Z.
POTENTIAL FOR ON-SITE EROSION HAS PASSED. THE IMPLEMENTATION,
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I » O 1L � ATE . IT MM, C4MPLW*:V- r�O �� MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTATION
CONTROL SYSTEMS SHALL 8E THE RESPONSOLITY OF THE PERMITEE.
6. THE EROSION AND SEDT ENTATION CONTROL SYSTEMS DEPICTED ON THIS
DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO INET ANTICIPATED
SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR
`
SEASONAL CONDITIONS DICTATE, THE PERMITEE SHALL ANTICIPATE THAT MORE
EROSION AND SEDIMENTATION CONTROL. FACILITIES WILL BE NECESSARY TO
ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DUB THE
COURSE OF CONSTRUCTION, IT SHALL BE THE OBLIGATION AND RESPONSIBILITY
OF THE PERIIIITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED
BY THE ACTIMTIES AND TO PROVIDE ADDITIONAL FACILITIES, OVER AND ABOVE
MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT
PROPERTIES AND WATER QUALITY OF THE RECEIVING DRAINAGE SYSTEM.
WS
7. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION DIIMENTATIONI CONTROL ONLY. IT
Im,%(j N MARCH 2008 DOES NOT CONSTITUTE AN APPROVAL OF STORM DRNNAGE DESIGN, SIZE NOR
l
- LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR RETENTION FACILITIES.
PLASTIC COVERING
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8. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL
NOT BE DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1 ST
THROUGH MARCH 30TH) OR SEVEN DAYS DURING THE DRY SEASON (APRIL 1 ST
TOUGH SEPTEMBER 30) SHALL BE IMMEDIATELY STABILIZED WITH THE
APPROVED ESC COVER METHODS (E.G., SEEDING, MULCHING, PLASTIC
COVERING, ETC.).
9. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS
APPLY TO ALL CONSTRUCTION SITES CLEARING BETWEEN OCTOBER 1 AND
MARCH 30 INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY THROUGH
AN ADJUSTMENT PROCESS.
10. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF
THE SURFACE WATER DESIGN MANUAL.
11. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION,
SHALL BE ADDRESSED WITHIN SEVEN (7) DAYS.
12. THE ESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED
A MINIMUM OF ONCE A MONTH OR WITHIN 24 HOURS FOLLOWING A STORM
EVENT.
13. AT NO TIME SHALL MORE THAN ONE (1) FOOT OF SEDIMENT BE ALLOWED TO
ACCUMULATE WITHIN A CATCH BASIN. 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.
14. DURING THE TIME PERIOD OF OCTOBER 1ST THROUGH MARCH 30TH, ALL
PROJECT DISTRIBUTED SOIL AREAS GREATER, THAT ARE TO BE LEFT
UN -WORKED FOR MORE THIN 12 HOURS, SHALL BE COVERED BY MULCH,
SODDING OR PLASTIC COVERING.
15. ANY PERMANENT RETENTION/DETENTION FACILITY USED AS A TEMPORARY
SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY EROSION CONTROL
MEASURES AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE
PERMANENT FACILITY IS TO FUNCTION ULTIMATELY AS AN INFILTRATION SYSTEM,
THE TEMPORARY FACILITY MUST BE ROUGH GRADED SO THAT THE BOTTOM AND
SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE
PERMANENT FACILITY.
16. PRIOR TO THE BEGINNING OF THE WET SEASON (OCT. 1), ALL DISTURBED
AREAS SHALL BE REVIEWED TO IDENTIFY WHICH ONES CAN BE SEEDED IN
PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SEEDED
WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. A SKETCH MAP
OF THOSE AREAS TO BE SEEDED AND THOSE AREAS TO REMAIN UNCOVERED
SHALL BE SUBMITTED TO THE CITY OF RENTON FOR REVIEW.
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CITY OF RE TON WET SEASON REQUIREMENTS:
ALL OF THE FOLLOWING PROVISIONS FOR WET SEASON CONSTRUCTION ARE DETAILED IN THE
REFERENCED SECTIONS. THESE REQUIREMENTS ARE LISTED HERE FOR THE CON MINCE OF
THE DESIGNER AND THE REVIEWER.
1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNNIORKED WITHOUT COVER
MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN.
2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED FOR
MORE THAN 12 HOURS.
3. COVER MATERIALS (PLASTIC, MATTING, ETC.) SUFFICIENT TO COVER ALL DISTURBED AREAS
SHALL BE STOCKPILED ON SITE.
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. SEEDING SHOULD BE
COMPLETED BY SEPTEMBER 23.
5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS.
6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF
DISTURIWE MUST BE STOCKPILED ON SITE.
7. PROPERLY INSTALLED SILT FENCING IS MANDATORY ALONG THE DOWNSLOPE OF ALL
DISTURBED AREAS OF THE SITE. PERIMETER PROTECTION FILTERS RUNOFF AND REDUCES
THE AMOUNT OF SEDIMENT THAT MAY LEAVE THE SITE.
8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR
THE SPECIFIED DESIGN FLOW.
9. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES
UNLESS THE SITE IS UNDERLAIN BY COARSE-GRAINED SOIL.
10. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED
FOR THE SPECIFIED DESIGN FLOW.
11. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION
ACTIVITY NEAR SURFACE WATERS.
12. ANY RUNOFF GENERATED BY DEWATERING SHALL BE TREATED THROUGH CONSTRUCTION OF
A SEDIMENT TRAP WHEN THERE IS SUFFICIENT SPACE OR BY RELEASING THE WATER TO A
WELL VEGETATED, GENTLY SLOPING AREA. SINCE PUMPS ARE USED FOR DEWATERING, IT
MAY BE POSSIBLE TO PUMP THE SEDIMENT -LADEN MITER WELL AWAY FROM THE SURFACE
MATER SO THAT VEGETATION CAN BE MORE EFFECTIVELY UTILIZED FOR TREATMENT. A
STRAIN BALE FILTER SHALL BE PLACED AROUND THE DISCHARGE FROM THE DEWATERING
PUMP. IF THERE IS NOT SPACE FOR A SEDIMENT TRAP OR 25 FEET OF SUITABLE
VEGETATION, OTHER FILTRATION METHODS SHALL BE REQUIRED.
13. THE FREQUENCY OF MNNTENANCE REVIEW INCREASES FROM WEEKLY TO DAILY WHERE
ARRANTED.
SCALE: NTS
SUNVeM womr-
DE„111mv. AS NOTED CITY OF TACO TIME RENTON N TO V 08.25.2015
ACC ST m
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ACC RENTON ONEOWLI. 14 0034� "aDATUM
CHECWJJG ,F NIX M Planning/Building/Public Works Dept. DEMOLITION AND TESC C2.02
REVISION BY DATE APPR SMIX occo mmy PLAN NOTES AND DETAILS 311111111T. 3 or -1
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CITY OF RE TON WET SEASON REQUIREMENTS:
ALL OF THE FOLLOWING PROVISIONS FOR WET SEASON CONSTRUCTION ARE DETAILED IN THE
REFERENCED SECTIONS. THESE REQUIREMENTS ARE LISTED HERE FOR THE CON MINCE OF
THE DESIGNER AND THE REVIEWER.
1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNNIORKED WITHOUT COVER
MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN.
2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED FOR
MORE THAN 12 HOURS.
3. COVER MATERIALS (PLASTIC, MATTING, ETC.) SUFFICIENT TO COVER ALL DISTURBED AREAS
SHALL BE STOCKPILED ON SITE.
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. SEEDING SHOULD BE
COMPLETED BY SEPTEMBER 23.
5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS.
6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF
DISTURIWE MUST BE STOCKPILED ON SITE.
7. PROPERLY INSTALLED SILT FENCING IS MANDATORY ALONG THE DOWNSLOPE OF ALL
DISTURBED AREAS OF THE SITE. PERIMETER PROTECTION FILTERS RUNOFF AND REDUCES
THE AMOUNT OF SEDIMENT THAT MAY LEAVE THE SITE.
8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR
THE SPECIFIED DESIGN FLOW.
9. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES
UNLESS THE SITE IS UNDERLAIN BY COARSE-GRAINED SOIL.
10. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED
FOR THE SPECIFIED DESIGN FLOW.
11. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION
ACTIVITY NEAR SURFACE WATERS.
12. ANY RUNOFF GENERATED BY DEWATERING SHALL BE TREATED THROUGH CONSTRUCTION OF
A SEDIMENT TRAP WHEN THERE IS SUFFICIENT SPACE OR BY RELEASING THE WATER TO A
WELL VEGETATED, GENTLY SLOPING AREA. SINCE PUMPS ARE USED FOR DEWATERING, IT
MAY BE POSSIBLE TO PUMP THE SEDIMENT -LADEN MITER WELL AWAY FROM THE SURFACE
MATER SO THAT VEGETATION CAN BE MORE EFFECTIVELY UTILIZED FOR TREATMENT. A
STRAIN BALE FILTER SHALL BE PLACED AROUND THE DISCHARGE FROM THE DEWATERING
PUMP. IF THERE IS NOT SPACE FOR A SEDIMENT TRAP OR 25 FEET OF SUITABLE
VEGETATION, OTHER FILTRATION METHODS SHALL BE REQUIRED.
13. THE FREQUENCY OF MNNTENANCE REVIEW INCREASES FROM WEEKLY TO DAILY WHERE
ARRANTED.
SCALE: NTS
SUNVeM womr-
DE„111mv. AS NOTED CITY OF TACO TIME RENTON N TO V 08.25.2015
ACC ST m
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ACC RENTON ONEOWLI. 14 0034� "aDATUM
CHECWJJG ,F NIX M Planning/Building/Public Works Dept. DEMOLITION AND TESC C2.02
REVISION BY DATE APPR SMIX occo mmy PLAN NOTES AND DETAILS 311111111T. 3 or -1
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