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REVISION
NE 3 -23 -5
II111MONIMU
42" TEMP. CONSTR.
FENCING
FILTER FABRIC FENCE
(PER DETAIL SHT. C4)
O CB PROTECTION (PER
DETAIL SHT. C4)
ROCK CHECK 6 v TEMPORARY
DAM PER C4 CONVEYANCE SWALE
DETAIL 1m ROCK CHECK DAM
(PER DETAIL SHT. C4)
NOTE: EASEMENT BOUNDARIES TO BE STAKED
BY CONTRACTOR AND VERIFIED BY
CITY PRIOR TO BEGINNING WORK.
NOTE: ALL WORK AND MATERIAL IN NILE AVE. NE
SUBJECT TO CITY OF RENTON RIGHT OF
WAY CONSTRUCTION PERMIT
BURIED UTILITIES IN AREA
CALL BEFORE YOU DIG
1 -800- 424 -5555
EXISTING UTILITIES SHOWN ARE FROM
THE BEST AVAILABLE INFORMATION AND
NO GUARANTEE IS MADE AS TO THE
EXACT SIZE, TYPE LOCATION OR DEPTH.
TEMPORARY EROSION AND SEDIMENTATION CONTROL NOTES
1. APPROVAL OF THIS TEMPORARY EROSION AND SEDIMENTATION CONTROL (TESC) PLAN DOES NOT
CONSTITUTE AN APPROVAL OF PERMANENT ROAD OR DRAINAGE DESIGN (E.G. SIZE AND LOCATION
OF ROADS, PIPES, RESTRICTORS, CHANNELS, RETENTION FACILITIES, UTILITIES, ETC.)
2. THE IMPLEMENTATION OF THESE TESC PLANS AND THE CONSTRUCTION, MAINTENANCE,
REPLACEMENT, AND UPGRADING OF THESE TESC FACILITIES IS THE RESPONSIBILITY OF
THE APPLICANT/TESC SUPERVISOR UNTIL ALL CONSTRUCTION IS APPROVED.
3. THE BOUNDARIES OF THE CLEARING LIMITS SHOWN ON THIS PLAN SHALL BE CLEARLY FLAGGED BY A
CONTINUOUS LENGTH OF SURVEY TAPE (OR FENCING, IF REQUIRED) PRIOR TO CONSTRUCTION.
DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE
PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/TESC SUPERVISOR FOR
THE DURATION OF CONSTRUCTION.
4. THE TESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN
CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF
SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEMS, AND ADJACENT PROPERTIES IS
MINIMIZED,
5. THE TESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR ANTICIPATED
SITE CONDITIONS. DURING THE CONSTRUCTION PERIOD, THESE TESC FACILITIES SHALL BE
UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR
CHANGING SITE CONDITIONS (E.G., ADDITIONAL SUMP PUMPS, RELOCATION OF DITCHES AND SILT
FENCES, ETC.).
6. THE TESC FACILITIES SHALL BE INSPECTED DAILY BY THE APPLICANT/TESC SUPERVISOR AND
MAINTAINED TO ENSURE PROPER FUNCTIONING. WRITTEN RECORDS SHALL BE KEPT OF
WEEKLY REVIEWS OF THE TESC FACILITIES DURING THE WET SEASON (OCT. 1 TO MARCH 31)
AND OF MONTHLY REVIEWS DURING THE DRY SEASON (APRIL 1 TO SEPT. 30).
7. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE
DISTURBED FOR TWO DAYS DURING THE WET SEASON OR SEVEN DAYS DURING THE DRY SEASON
SHALL BE IMMEDIATELY STABILIZED WITH THE APPROVED TESC METHODS (E.G., SEEDING,
MULCHING, PLASTIC COVERING, ETC.).
8. ANY AREA NEEDING TESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE
ADDRESSED WITHIN FIFTEEN (15) DAYS.
9. THE TESC FACILITIES ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED A MINIMUM OF
ONCE A MONTH OR WITHIN 48 HOURS FOLLOWING A STORM EVENT.
10. 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.
11. STABILIZED CONSTRUCTION ENTRANCES AND ROADS SHALL BE INSTALLED AT THE BEGINNING OF _
CONSTRUCTION AND MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES,
SUCH AS WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN
FOR THE DURATION OF THE PROJECT.
12. 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 GRADED SO THAT THE BOTTOM AND
SIDES ARE AT LEAST ONE FOOT ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY.
13. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED
AT A MINIMUM THICKNESS OF 2" - V%
"FINAL GEOTECHNICAL REPORT, RENTON STONEGATE 11 SEWER SYSTEM IMPROVEMENTS PROJECT"
Q PREPARED BY HWA GEOSCIENCES, INC., DATED NOVEMBER 7, 2008, ALSO, ADDENDUM #1 FOR THE
REPORT, DATED MAY 20, 2009. THIS REPORT AND ADDENDUM ARE AVAILABLE FOR REFERENCE AND
DESIGN PURPOSES ONLY, AND ARE AVAILABLE AT THE CITY OF RENTON PUBLIC WORKS
DEPARTMENT OR ONLINE AT THE BUILDER'S EXCHANGE WEBSITE FOR REVIEW.
SITE NOTES:
1. CONTRACTORS LL BE RESPONSIBLE FOR DEWATERING
HA AND IMPLEMENTING AN APPROPRIATE
PLAN FOR THE EXCAVATION, PLAN SHALL BE IN ACCORDANCE WITH ANY APPLICABLE
GEOTECHNICAL RECOMMENDATIONS. CONTRACTOR SHALL DISCHARGE ALL PUMPED
GROUNDWATER IN SUCH A MANNER THAT ALL SEDIMENT IS CONTAINED WITHIN THE PROJECT
LIMITS. ALL DRAINAGE LEAVING THE SITE AS A RESULT OF DEWATERING SHALL BE DISCHARGED
WITHIN AN EXISTING NATURAL DRAINAGE COURSE OR TO AN EXISTING T
X STING S ORM DRAIN AND SHALL
MEET CURRENT WATER QUALITY STANDARDS FOR SAID DISCHARGES. CONTRACTOR SHALL APPLY
FOR AND OBTAIN ANY ADDITIONAL REQUIRED PEIRMIT(S) TO PERFORM THIS WORK.
2. ALL EXCAVATION WORK SHALL BE DONE IN SUCH A MANNER AS TO NOT IMPACT PROPERTY AND
STRUCTURES OUTSIDE EASEMENTS. CONTRACTOR SHALL BE RESPONSIBLE FOR ANY TEMPORARY
SHORING THAT MAY BE REQUIRED FOR THE EXCAVATION. CONTRACTOR SHALL SUBMIT
NECESSARY PLANS AND CALCULATIONS COMPLETED BY A PROFESSIONAL ENGINEER LICENSED IN
THE STATE OF WASHINGTON. CONTRACTOR SHALL BE COMPLETELY RESPONSIBLE FOR ALL SITE
SAFETY, INCLUDING PROPER EXCAVATION AND SHORING METHODS, AND PROTECTION OF
ADJACENT PROPERTIES.
3. CONTRACTOR SHALL PROVIDE ALL DEWATERING ACTIVITIES ASSOCIATED WITH REMOVING ANY
ADDITIONAL WATER WHICH ENTERS THE LIFT STATION EXCAVATION THROUGH AND /OR RESULTING
FROM THE EXISTING AND PROPOSED GRAVITY SEWER AND FORCE MAIN TRENCHES UPSTREAM OF
THE LIFT STATION, THERE MAY BE A LARGE VOLUME OF UPSTREAM WATER FROM TRENCHES
EN HES
ADJACENT TO EXISTING STONEGATE LS, INCLUDING SPRING FLOW. CONTRACTOR SHALL BE
RESPONSIBLE FOR MANAGING WATER AND LIMITING DISCHARGE TO DOWNSTREAM EXCAVATIONS.
FRENCH DRAIN SHOWN ON SHT. C5 WILL BE INSTALLED TO REDIRECT THIS WATER, BUT INTERIM
PROCEDURES WILL BE NECESSARY. SEE SHT. C5 FOR CLAY DAMS.
5- 341332
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