HomeMy WebLinkAboutS-396504CITY OF RENTON EROSION CONTROL NOTES
EROSION CONTROL NOTES
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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 THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE DRY SEASON
(MAY 1ST THROUGH SEPTEMBER 30) SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED ESC COVER METHODS
(E.G., SEEDING, MULCHING, PLASTIC COVERING, ETC.). TEMPORARY STOCKPILES SHALL BE COVERED WHEN NOT IN
USE AND AT THE END OF EACH SHIFT.
8. WET SEASON SEASONAL EROSION AND SEDIMENT CONTROL REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES
CLEARING BETWEEN OCTOBER 1ST AND APRIL 30TH INCLUSIVE, UNLESS OTHERWISE APPROVED BY THE CITY
THROUGH AN ADJUSTMENT PROCESS.
9. COVER MEASURES WILL BE APPLIED IN CONFORMANCE WITH SWPPP PREPARED FOR THE SITE AND BOEING
STORMWATER INDUSTRIAL PERMIT REQUIREMENTS.
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 APRIL 30TH, ALL PROJECT DISTRIBUTED SOIL AREAS 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.
CITY OF RENTON RECOMMENDED CONSTRUCTION SEQUENCE
1. ATTEND PRE -CONSTRUCTION MEETING WITH THE CITY OF RENTON.
1. ON -SITE EROSION MEASURES AND STORM WATER POLLUTION PREVENTION SHALL
BE THE RESPONSIBILITY OF THE CONTRACTOR. ANY PROBLEMS OCCURRING
BEFORE FINAL ACCEPTANCE OF THE STORM SEWER BY THE OWNER SHALL BE
CORRECTED BY THE CONTRACTOR.
2. ALL EROSION AND SEDIMENTATION CONTROL DEVICES SHOWN ON THESE DRAWINGS
SHALL BE INSTALLED PRIOR TO OR AS THE FIRST STAGE OF SITE PREPARATION.
3. SHOULD THE TEMPORARY EROSION AND SEDIMENTATION CONTROL MEASURES AS
SHOWN IN THESE DRAWINGS NOT PROVE ADEQUATE TO CONTROL EROSION AND
SEDIMENTATION, THE CONTRACTOR SHALL INSTALL HAY BALES, SILT FENCE OR
ADDITIONAL FACILITIES AS NECESSARY TO PROJECT ADJACENT PROPERTIES,
SENSITIVE AREAS, NATURAL WATER COURSES AND/OR STORM DRAINAGE SYSTEMS.
4. ALL NECESSARY FACILITIES SHALL BE MAINTAINED ON -SITE TO PREVENT DEBRIS,
DUST AND MUD FROM ACCUMULATING ON THE PUBLIC RIGHT-OF-WAY AND BOEING
PROPERTY.
5. THE CONTRACTOR SHALL COMPLY WITH ALL REQUIREMENTS OF THE SITE'S
CONSTRUCTION STORMWATER GENERAL PERMIT INCLUDING SITE STORMWATER
POLLUTION PREVENTION PLAN AND ALL APPLICABLE BMP'S SPECIFIED THEREIN.
6. THE CONTRACTOR SHALL TAKE STORMWATER SAMPLES, COMPLETE AND EROSION
CONTROL CHECKLIST, CAREFULLY REVIEW, AND MAINTAIN ALL STORMWATER
POLLUTION PREVENTION MEASURES DAILY.
STOCKPILED TOPSOIL NOTES
1. STOCKPILES SHALL BE STABILIZED (WITH PLASTIC COVERING OR OTHER
APPROVED DEVICE) DAILY BETWEEN OCTOBER 1 AND APRIL 30.
POLLUTION PREVENTION NOTES
1. PREVENT OIL AND FUELS FROM ENTERING THE STORM DRAINAGE SYSTEM WITH
PROPER CONTAINMENT DEVICES.
2. SWEEP DIRT FROM PAVING DAILY OR AS NEEDED. THE INTENT IS TO PREVENT DIRT
AND DEBRIS FROM VEHICLES AND EQUIPMENT FROM BEING DEPOSITED ON BOEING
OWNED STREET AND CITY STREET PAVEMENT.
3. THE CONTRACTOR SHALL PREVENT ALL MATERIAL USED OR GENERATED ON -SITE FROM
ENTERING THE STORM DRAINAGE SYSTEM. THE CONTRACTOR IS RESPONSIBLE FOR
PROVIDING ADEQUATE CONTAINMENT/SEPARATION AT ALL TIMES. ALL STORMWATER
POLLUTION PREVENTION MEASURES SHALL BE COORDINATED WITH BOEING
ENVIRONMENTAL ENGINEERING TO ENSURE COMPLIANCE WITH APPLICABLE STORMWATER
PERMITS.
4. THE CONTRACTOR SHALL CONDUCT DAILY STORMWATER/ENVIRONMENTAL INSPECTION
OF THE CONSTRUCTION SITE. SCOPE OF THE INSPECTION WILL BE COORDINATED
WITH BOEING SITE ENVIRONMENTAL ENGINEERING.
5. CONTRACTOR SHALL PROVIDE A TEMPORARY WHEEL WASH AT THE DESIGNATED
CONSTRUCTION ENTRANCE.
CONSTRUCTION SEQUENCE
1. UPON COMPLETION OF THE PROJECT, STABILIZE ANY REMAINING DISTURBED AREAS
AND REMOVE BMPS (BEST MANAGEMENT PRACTICES) IF APPROPRIATE.
2. REMOVE TRAFFIC CONTROL AND REMAINING EROSION CONTROL AND POLLUTION
PREVENTION MEASURES UPON APPROVAL BY BOEING.
3. SHOULD DEWATERING OF EXCAVATION BECOME NECESSARY, CONTRACTOR SHALL
PROVIDE DEWATERING PLAN, LABOR AND EQUIPMENT. COORDINATE DEWATERING WITH
OWNER (BOEING) AND THEIR GEOTECHNICAL ENGINEER. OWNER SHALL TEST
GROUNDWATER FOR CONTAMINANTS AND PROVIDE DIRECTION FOR DISPOSAL.
CB PROTECTION NOTES
1. CATCH BASIN INSERTS SHALL BE PROVIDED IN THE CATCH BASINS TRIBUTARY TO
AREA WHERE CONTRACTOR'S CONSTRUCTION ACTIVITIES OCCUR.
2. CATCH BASIN INSERTS SHALL BE REMOVED FOLLOWING COMPLETION OF
CONSTRUCTION AND STABILIZATION OF ALL CLEARED AREAS.
2. POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF
CONSTRUCTION SIGN). WHEEL WASH NOTES
3. FLAG OR FENCE CLEARING LIMITS.
4. INSTALL CATCH BASIN PROTECTION AND ALL OTHER EROSION AND SEDIMENT CONTROL MEASURES, INCLUDING WHEEL WASH, 1. WHEEL WASH PROVIDED MAY BE CONSTRUCTED IN PLACE IN ACCORDANCE WITH
AS REQUIRED. CONSTRUCTION NOTES AND DETAILS PROVIDED BY THE WASHINGTON STATE
DEPARTMENT OF ECOLOGY, STORMWATER MANAGEMENT MANUAL FOR WESTERN
5. CONSTRUCT SURFACE WATER CONTROLS SIMULTANEOUSLY WITH PAVEMENT DEMOLITION FOR PROJECT SITE. WASHINGTON, VOLUME II, FIGURE 4.1.2 AND BMP C106; OR BE OF A TEMPORARY
6. MAINTAIN EROSION CONTROL MEASURES IN ACCORDANCE WITH THE SWPPP PREPARED FOR THE SITE AND BOEING (PORTABLE) PROPRIETARY DESIGN.
STORMWATER INDUSTRIAL PERMIT. 2. USE A LOW CLEARANCE TRUCK TO TEXT THE WHEEL WASH BEFORE COMPLETING
7. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE THE EROSION FINAL INSTALLATION. USE EITHER A BELLY DUMP OR LOWBOY TO TEST CLEARANCE.
AND SEDIMENT CONTROL IS ALWAYS IN ACCORDANCE WITH THE CITY'S EROSION AND SEDIMENT CONTROL STANDARDS. 3. WATER LEVEL SHALL BE MAINTAINED FROM 12 TO 14 INCHES DEEP TO AVOID
DAMAGE TO TRUCK HUBS AND FILLING THE TRUCK TONGUES WITH WATER.
8. COVER ALL AREAS THAT WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THE DRY SEASON OR TWO DAYS 4. MIDPOINT SPRAY NOZZLES ARE ONLY NECESSARY IN EXTREMELY MUDDY CONDITIONS.
DURING THE WET SEASON WITH STRAW, WOOD FIBER MULCH, COMPOST, PLASTIC SHEETING OR EQUIVALENT.
5. SYSTEM SHALL BE DESIGNED TO ALLOW SEDIMENT TO FLOW TO THE LOW SIDE OF
9. UPON COMPLETION OF THE PROJECT, ALL DISTURBED AREAS MUST BE STABILIZED AND BMPS REMOVED IF APPROPRIATE. THE UNIT TO AVOID RE -SUSPENSION. A DRAIN PIPE WITH A RISER SHOULD BE
INSTALLED TO ALLOW FOR EASY CLEANING AND REFILLING. POLYMERS MAY BE USED
TO PROMOTE COAGULATION AND FLOCCULATION IN A CLOSED -LOOP SYSTEM.
POLYCRYMIDETE OF
STOCKPILED TOPSOIL NOTES 0.25 AO 50�POUNDS WHEEL
ED T11,0 OE GALLONS OFHWATER SAT AASEFFECTIVE WATERN D EDUCES
CLEANUP TIME.
1. STOCKPILES SHALL BE STABILIZED (WITH PLASTIC COVERING OR OTHER APPROVED DEVICE) DAILY BETWEEN 6. THE WHEEL WASH SHALL BE EMPTIED EACH DAY AND FILLED WITH FRESH WATER AT
OCTOBER 1 AND APRIL 30. THE BEGINNING OF EACH SHIFT. ALL WASH WATER SHALL BE DISCHARGED TO
SANITARY SEWER; TREATED AND DISCHARGED IN ACCORDANCE WITH APPLICABLE
2. IN ANY SEASON, SEDIMENT LEACHING FROM STOCKPILES MUST BE PREVENTED. PERMITS; OR HAULED OFFSITE.
3. TOPSOIL SHALL NOT BE PLACED WHILE IN FROZEN OR MUDDY CONDITION, WHEN THE SUBGRADE IS EXCESSIVELY 7. THE WASH WATER SHOULD BE CHANGED A MINIMUM OF ONCE PER DAY. WHEN
WET, OR WHEN CONDITIONS EXIST THAT MAY OTHERWISE BE DETRIMENTAL TO PROPER GRADING OR PROPOSED MORE THAN 10-20 TRUCKS PER HOUR ARE EXPECTED, THE WASH WATER WILL
SODDING OR SEEDING. NEED TO BE CHANGED MORE OFTEN.
4. PREVIOUSLY ESTABLISHED GRADES ON THE AREAS TO BE TOPSOILED SHALL BE MAINTAINED ACCORDING TO THE 8. WHEEL WASH WATER MUST BE APPROVED BY BOEING ENVIRONMENTAL ENGINEER
APPROVED PLAN. PRIOR TO DISCHARGE.
S-396539
PERMIT SET
July 15, 2019
DRAWN DATE SUBTITLE CURRENT REVISION SYMBOL DATE
SYM REVISION BY APPROVED DATE SYM REVISION BY APPROVED DATE
ACCEPTABILITY zMS 07.15.19
TESC NOTES W19111354 - 07.15.19
- REPLACE 04-042 SEWAGE LIFT STATION W19111354 ABAM 07.15.19 ❑dAs THIS DESIGN AND/OR CHECKED
4 �c.°� E�i� SPECIFICATION IS APPROVED DRS 07.15.19 SHEET
ENGINEER TITLE
� APPROVED BY DEPT. DATE ZMS 07.15.19 REPLACE 04-042 SEWAGE LIFT STATION C2-6B C2
CHECKED
APPROVED BUILDING 04-042 JOB N0. COMP N0.
��r15TER�4 tia� W1911 1354
AL. APPROVED DWG N0.
1jr CIVIL MASTER RENTON, WA RTN-YD-C2-6B
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