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This document is considered DRAFT until reviewed and initialed by an AESI Project Manager
Temporary Erosion and
Sediment Control Monitoring
DATE PROJECT NAME AESI PROJECT NO. TESC REPORT NO.
12/13/2022 Renton ES 16 20180398E003 033
LOCATION CITY MUNICIPALITY CSWGP
1075 Duvall Ave NE Renton Renton WAR310781
PREVIOUS SITE VISIT CLIENT/OWNER WEATHER 24 HOUR RAINFALL PAST WEEK RAINFALL
12/05/2022 Renton School District 403 Cloudy, 40's 0.00" 1.90"
AESI FIELD REP Catherine Ikeda AESI PROJECT MANAGER Bruce Guenzler
Catherine Ikeda
QUALITY/CONDITION (SEE SWPPP FOR BMP LOCATIONS)
CONSTRUCTION ENTRANCE SITE RESTRICTED ACCESS
Gravel, quarry spalls Locked chain link fences
WHEEL WASH SEDIMENT TRACK OUT
N/A City construction in right of way, not under this permit
ROADWAY SURFACE CATCH BASIN
Crushed rock, quarry spalls Silt socks installed in catch basins
LIMITS BUFFER AREA STABILIZATION
Marked by chain link fences N/A
SILT FENCING CONCRETE WORK (Sidewalks, curbing, foundation)
Installed along site perimeter No concrete work observed
COVER MEARSURES OVERALL STRAW
Good Covering exposed soils and slopes
PLASTIC SHEETING HYDROSEED
N/A Hydroseed covering exposed soils on N and W end of site
CONVEYENCE CHANNEL CHECK DAMS
Temporary channels on north and south end of site
directing water to catch basin
Temporary check dams and swale on NE end of site
STOCKPILE COVER PIPE SLOPE DRAINS
N/A N/A
LEVEL SPREADER LANDSCAPE/MULCH
N/A N/A
SEDIMENT POND TRAP SEDIMENT POND INLET/OUTLET
Temporary sediment ponds on NE and W end of site N/A
SEDIMENT POND SIDE SLOPES SURFACE WATER OBSERVATION
(Creek, Wetland, or Lake) (Clear, Turbid, Sheen)
Covered with hydroseed and quarry spalls little surface water
WATER QUALITY SAMPLE TURBIDITY (NTU) pH OVERALL
No N/A N/A BMP's adequate
SAMPLE LOCATION AREAS OF CONCERN
Temporary swale in NE corner of site None
CORRECTIVE ACTIONS
None
PAST CORRECTIVE ACTIONS
None
Is this site in compliance with the terms and conditions
of the SWPP and CSWGP discharge Permit?
Yes
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TESC REPORT
DATE CSWGP PROJECT NO. TESC REPORT NO.
12/13/2022 WAR310781 20180398E003 033
Sample Location Approximate Flow Turbidity NTU/Transparency pH Compliance
ADDITIONAL COMMENTS:
The contractor is using temporary check dams and swales onsite to impound the water and has acquired a Baker tank
and received a permit to discharge construction storm water to King County sanitary sewer with higher turbidity limits.
The contractor intends to pump storm water from the existing north swale to the sanitary sewer any time turbidity
levels exceed target levels applicable for discharge under the construction storm water general permit.
No offisite discharge was observed during the visit. AESI took a water sample from water held in the temporary north
swale. The water quality came back at 61 NTU and 6.0 pH.
While onsite, AESI observed the Baker tank leaking into the west sediment pond. AESI notified the contractor. The
contractor indicated they would fix it.