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EROSION CONTROL NOTES
1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE -CONSTRUCTION
MEETING MUST BE HELD WITH THE CITY OF RENTON, PUBLIC WORKS DESIGN ENGINEER.
2. THE BOUNDARIES OF THE CLEARING LIMITS AND AREAS OF VEGETATION PRESERVATION AS
PRESCRIBED ON THE PLAN(S) 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 OBSERVED DURING 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.
3. 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.
4. ALL REQUIRED SEDIMENTATION/EROSION CONTROL FACILITIES MUST 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 EROSION AND SEDIMENT FACILITIES 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. THE IMPLEMENTATION,
MAINTENANCE, REPLACEMENT AND ADDITIONS TO EROSION/SEDIMENTATION CONTROL
SYSTEMS SHALL BE THE RESPONSIBILITY OF THE PERMITEE.
5. THE EROSION AND SEDIMENTATION CONTROL SYSTEMS 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
PERMITEE SHALL ANTICIPATE THAT MORE EROSION AND SEDIMENTATION CONTROL FACILITIES
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 PERMITEE TO ADDRESS ANY NEW CONDITIONS THAT MAY BE
CREATED BY THE ACTIVITIES 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.
6. APPROVAL OF THIS PLAN IS FOR EROSION/SEDIMENTATION CONTROL ONLY. IT DOES NOT
CONSTITUTE AN APPROVAL OF STORM DRAINAGE DESIGN, SIZE NOR LOCATION OF PIPES,
RESTRICTORS, CHANNELS, OR RETENTION FACILITIES.
7. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE
DISTURBED FOR TWO DAYS DURING THE WET SEASON (OCTOBER 1ST TROUGH MARCH
30TH) OR SEVEN DAYS DURING THE DRY SEASON (APRIL 1ST TOUGH SEPTEMBER 30)
SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS (E.G.,
SEEDING, MULCHING, PLASTIC COVERING, ETC.).
8. 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.
9. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH APPENDIX D OF THE SURFACE
WATER DESIGN MANUAL
10. ANY AREA NEEDING ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE
ADDRESSED WITHIN SEVEN (7) DAYS.
11. 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.
12. 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.
13. 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 THAN
12 HOURS, SHALL BE COVERED BY MULCH, SODDING OR PLASTIC COVERING.
14. 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.
15. 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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CONDITIONS FOR WET SEASON CONSTRUCTION
1. ANY CONSTRUCTION THAT WILL RESULT IN DISTURBED AREAS ON OR WITHIN A
CRITICAL AREA OR ASSOCIATED BUFFER, SHALL BE SUBJECT TO THE "CRITICAL AREA
RESTRICTIONS" CONTAINED IN THE ESC STANDARDS. THESE PROVISIONS INCLUDE
PHASING THE PROJECT WHENEVER POSSIBLE SO THAT CONSTRUCTION IN THESE
AREAS IS LIMITED TO THE DRY SEASON.
2. DURING CONSTRUCTION, ESC PLANS SHALL BE REVISED AS NECESSARY BY THE ESC
SUPERVISOR OR AS DIRECTED BY THE CITY TO ADDRESS CHANGING SITE
CONDITIONS, UNEXPECTED STORM EVENTS, OR NON-COMPLIANCE WITH THE ESC
PERFORMANCE CRITERIA IN SECTION D.4.1 (P. D-69). IF NON-COMPLIANCE WITH
THE ESC PERFORMANCE CRITERIA OCCURS, THE PLAN MUST BE UPDATED WITHIN 48
HOURS (FAILURE TO DO SO COULD RESULT IN A "STOP WORK" ORDER AS
DETERMINED BY THE CITY INSPECTOR) OF INSPECTIONS OR INVESTIGATIONS.
IMPLEMENTATION OF THE ONSITE CHANGES MUST OCCUR WITHIN 5 DAYS.
3. ALL ESC MEASURES SHALL BE MAINTAINED AND REVIEWED ON A REGULAR BASIS AS
PRESCRIBED IN THE MAINTENANCE REQUIREMENTS FOR EACH BMP AND IN THIS
SECTION. THE ESC SUPERVISOR SHALL REVIEW THE SITE AT LEAST WEEKLY DURING
THE WET SEASON, AND WITHIN 24 HOURS OF SIGNIFICANT STORMS. IN GENERAL, A
SIGNIFICANT STORM IS ONE WITH MORE THAN 0.5 INCHES OF RAIN IN 24 HOURS OR
LESS. THE CITY MAY REQUIRE THAT A WRITTEN RECORD OF THESE REVIEWS BE KEPT
ON SITE WITH COPIES SUBMITTED TO THE CITY WITHIN 48 HOURS.
WET SEASON PROVISIONS
NOTE: THE FOLLOWING MEASURES ARE REQUIRED FOR CONSTRUCTION DURING THE WET
SEASON (OCTOBER 1 - APRIL 30) IN ADDITION TO THE STANDARD TESC MEASURES.
1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNWORKED WITHOUT COVER
MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN
(SECTION D.3.2).
2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED
FOR MORE THAN 12 HOURS (SECTION D.3.2).
3. COVER MATERIALS SUFFICIENT TO COVER ALL DISTURBED AREAS SHALL BE STOCKPILED
ON SITE (SECTION D.3.2).
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 (SECTION D.3.2.5).
5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS (SECTION D.3.2.1).
6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF
DISTURBANCE MUST BE STOCKPILED ON SITE (SECTION D.3.3.1).
7. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES
UNLESS THE SITE IS UNDERLAIN BY COARSE-GRAINED SOIL (SECTION D.3.4.2).
8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR
THE SPECIFIED DESIGN FLOW (SECTION D.3.5).
9. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS
ANTICIPATED FOR THE SPECIFIED DESIGN FLOW (SECTION D.3.6).
10. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION
ACTIVITY NEAR THE SURFACE WATERS (SECTION D.5.3).
11. ANY RUNOFF GENERATED BY DEWATERING MAY BE REQUIRED TO DISCHARGE TO THE
SANITARY SEWER (WITH APPROPRIATE DISCHARGE AUTHORIZATION), PORTABLE SAND
FILTER SYSTEMS, OR HOLDING TANKS.
12. THE FREQUENCY OF MAINTENANCE REVIEW INCREASES FROM MONTHLY TO WEEKLY
(SECTION D.5.4).
STRUCTURAL NOTES
1. THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY.
PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A
SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION.
2. 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 RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE
WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT-OF-WAY SHALL BE
CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
2 1 THIRD SUBMITTAL
NO.
REVISION
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MULCH STANDARDS AND GUIDELINES
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QUALITY
Suite 205
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STANDARDS
RATES
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CONDITIONS FOR WET SEASON CONSTRUCTION
1. ANY CONSTRUCTION THAT WILL RESULT IN DISTURBED AREAS ON OR WITHIN A
CRITICAL AREA OR ASSOCIATED BUFFER, SHALL BE SUBJECT TO THE "CRITICAL AREA
RESTRICTIONS" CONTAINED IN THE ESC STANDARDS. THESE PROVISIONS INCLUDE
PHASING THE PROJECT WHENEVER POSSIBLE SO THAT CONSTRUCTION IN THESE
AREAS IS LIMITED TO THE DRY SEASON.
2. DURING CONSTRUCTION, ESC PLANS SHALL BE REVISED AS NECESSARY BY THE ESC
SUPERVISOR OR AS DIRECTED BY THE CITY TO ADDRESS CHANGING SITE
CONDITIONS, UNEXPECTED STORM EVENTS, OR NON-COMPLIANCE WITH THE ESC
PERFORMANCE CRITERIA IN SECTION D.4.1 (P. D-69). IF NON-COMPLIANCE WITH
THE ESC PERFORMANCE CRITERIA OCCURS, THE PLAN MUST BE UPDATED WITHIN 48
HOURS (FAILURE TO DO SO COULD RESULT IN A "STOP WORK" ORDER AS
DETERMINED BY THE CITY INSPECTOR) OF INSPECTIONS OR INVESTIGATIONS.
IMPLEMENTATION OF THE ONSITE CHANGES MUST OCCUR WITHIN 5 DAYS.
3. ALL ESC MEASURES SHALL BE MAINTAINED AND REVIEWED ON A REGULAR BASIS AS
PRESCRIBED IN THE MAINTENANCE REQUIREMENTS FOR EACH BMP AND IN THIS
SECTION. THE ESC SUPERVISOR SHALL REVIEW THE SITE AT LEAST WEEKLY DURING
THE WET SEASON, AND WITHIN 24 HOURS OF SIGNIFICANT STORMS. IN GENERAL, A
SIGNIFICANT STORM IS ONE WITH MORE THAN 0.5 INCHES OF RAIN IN 24 HOURS OR
LESS. THE CITY MAY REQUIRE THAT A WRITTEN RECORD OF THESE REVIEWS BE KEPT
ON SITE WITH COPIES SUBMITTED TO THE CITY WITHIN 48 HOURS.
WET SEASON PROVISIONS
NOTE: THE FOLLOWING MEASURES ARE REQUIRED FOR CONSTRUCTION DURING THE WET
SEASON (OCTOBER 1 - APRIL 30) IN ADDITION TO THE STANDARD TESC MEASURES.
1. THE ALLOWED TIME THAT A DISTURBED AREA MAY REMAIN UNWORKED WITHOUT COVER
MEASURES IS REDUCED TO TWO CONSECUTIVE WORKING DAYS, RATHER THAN SEVEN
(SECTION D.3.2).
2. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE PROTECTED IF UNWORKED
FOR MORE THAN 12 HOURS (SECTION D.3.2).
3. COVER MATERIALS SUFFICIENT TO COVER ALL DISTURBED AREAS SHALL BE STOCKPILED
ON SITE (SECTION D.3.2).
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 (SECTION D.3.2.5).
5. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS (SECTION D.3.2.1).
6. FIFTY LINEAR FEET OF SILT FENCE (AND THE NECESSARY STAKES) PER ACRE OF
DISTURBANCE MUST BE STOCKPILED ON SITE (SECTION D.3.3.1).
7. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE REQUIRED FOR ALL SITES
UNLESS THE SITE IS UNDERLAIN BY COARSE-GRAINED SOIL (SECTION D.3.4.2).
8. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE IS ANTICIPATED FOR
THE SPECIFIED DESIGN FLOW (SECTION D.3.5).
9. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE DISCHARGE IS
ANTICIPATED FOR THE SPECIFIED DESIGN FLOW (SECTION D.3.6).
10. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR CONSTRUCTION
ACTIVITY NEAR THE SURFACE WATERS (SECTION D.5.3).
11. ANY RUNOFF GENERATED BY DEWATERING MAY BE REQUIRED TO DISCHARGE TO THE
SANITARY SEWER (WITH APPROPRIATE DISCHARGE AUTHORIZATION), PORTABLE SAND
FILTER SYSTEMS, OR HOLDING TANKS.
12. THE FREQUENCY OF MAINTENANCE REVIEW INCREASES FROM MONTHLY TO WEEKLY
(SECTION D.5.4).
STRUCTURAL NOTES
1. THESE PLANS ARE APPROVED FOR STANDARD ROAD AND DRAINAGE IMPROVEMENTS ONLY.
PLANS FOR STRUCTURES SUCH AS BRIDGES, VAULTS, AND RETAINING WALLS REQUIRE A
SEPARATE REVIEW AND APPROVAL BY THE CITY PRIOR TO CONSTRUCTION.
2. 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 RIGHT-OF-WAY SHALL BE CONSTRUCTED IN ACCORDANCE
WITH CITY STANDARDS. ROCKERIES OUTSIDE OF ROAD RIGHT-OF-WAY SHALL BE
CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE.
2 1 THIRD SUBMITTAL
NO.
REVISION
ESM
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CJR
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MULCH STANDARDS AND GUIDELINES
MULCH
QUALITY
APPLICATION
MATERIAL
STANDARDS
RATES
REMARKS
STRAW
AIR-DRIED; FREE FROM
2"-3" THICK; 2-3
COST-EFFECTIVE PROTECTION WHEN APPLIED
UNDESIRABLE SEED
BALES PER 1000 SF OR
WITH ADEQUATE THICKNESS. HAND -APPLICATION
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AND COARSE MATERIAL
2-3 TONS PER ACRE
GENERALLY REQUIRES GREATER THICKNESS THAN
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AVOID WIND BLOW. THE THICKNESS OF STRAW
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MAY BE REDUCED BY HALF WHEN USED IN
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CONJUNCTION WITH SEEDING.
WOOD FIBER
NO GROWTH INHIBITING
APPROX. 25-30 LBS
SHALL BE APPLIED WITH HYDROMULCHER. SHALL
CELLULOSE
FACTORS
PER 1000 SF OR
NOT BE USED WITHOUT SEED AND TACKIFIER
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1000-1500 LBS PER
UNLESS THE APPLICATION RATE IS AT LEAST
ACRE
DOUBLED. SOME WOOD FIBER WITH VERY LONG
FIBERS CAN BE EFFECTIVE AT LOWER
APPLICATION RATES AND WITHOUT SEED OR
TACKIFIER.
COMPOST
NO VISIBLE WATER OR
2" THICK MIN.;
MORE EFFECTIVE CONTROL CAN BE OBTAINED BY
DUST DURING
APPROX. 100 TONS
INCREASING THICKNESS TO 3". EXCELLENT
HANDLING. MUST BE
PER ACRE (APPROX.
MULCH FOR PROTECTING FINAL GRADES UNTIL
PURCHASED FROMLANDSCAPING
800 LBS PER YARD)
BECAUSE IT CAN BE DIRECTLY
SUPPLIER WITH SOLID
SEEDED OR TILLED INTO SOIL AS AN
WASTE HANDLING
AMENDMENT. SOURCES FOR COMPOST ARE
PERMIT.
AVAILABLE FROM THE KING COUNTY COMMISSION
FOR MARKETING RECYCLABLE MATERIALS AT
(206) 296-4439.
CHIPPED SITE
AVERAGE SIZE SHALL
2" MINIMUM
THIS IS A COST-EFFECTIVE WAY TO DISPOSE OF
VEGETATION
BE SEVERAL INCHES.
THICKNESS
DEBRIS FROM CLEARING AND GRUBBING, AND IT
ELIMINATES THE PROBLEMS ASSOCIATED WITH
BURNING. GENERALLY, IT SHOULD NOT BE USED
ON SLOPES ABOVE APPROX. 10% BECAUSE OF
ITS TENDENCY TO BE TRANSPORTED BY RUNOFF.
IT IS NOT RECOMMENDED WITHIN 200 FEET OF
SURFACE WATERS. IF SEEDING IS EXPECTED
SHORTLY AFTER MULCH, THE DECOMPOSITION OF
THE CHIPPED VEGETATION MAY TIE UP NUTRIENTS
IMPORTANT TO GRASS ESTABLISHMENT.
CHECKED FOOR/ COMPLIANCE TO CITY STANDARDS
R=376206
NTS 99,s9i1�91 ,1� CITY OF RYLEE'S PLACE 08/16/207
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RENTON GRADING & T.E.S.C. NOTES P�
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