HomeMy WebLinkAbout20160674E003 Bethany Corner 2023-01-13 TESC 107.pdf
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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.
1/13/2023 Bethany Corner 20160674E003 107
LOCATION CITY MUNICIPALITY CSWGP
16451 111th Ave SE Renton Renton WAR307077
PREVIOUS SITE VISIT CLIENT/OWNER WEATHER 24 HOUR RAINFALL PAST WEEK RAINFALL
1/04/2023
Mark Seek (Tiger Mountain
Homes) Rain, 50's 0.29" 1.50"
AESI FIELD REP Catherine Ikeda AESI PROJECT MANAGER Matthew A. Miller,
P.E.
Catherine Ikeda
QUALITY/CONDITION (SEE SWPPP FOR BMP LOCATIONS)
CONSTRUCTION ENTRANCE SITE RESTRICTED ACCESS
Asphalt pavement No
WHEEL WASH SEDIMENT TRACK OUT
N/A Sediment trackout
ROADWAY SURFACE CATCH BASIN
Asphalt silt socks installed, along 165th St - need repair
LIMITS BUFFER AREA STABILIZATION
Silt fence Landscaping grass, bark
SILT FENCING CONCRETE WORK (Sidewalks, curbing, foundation)
Installed along N, S, and W perimeter - needs repairs None observed
COVER MEARSURES OVERALL STRAW
Fair N/A
PLASTIC SHEETING HYDROSEED
N/A Sidewalk planters
CONVEYENCE CHANNEL CHECK DAMS
N/A N/A
STOCKPILE COVER PIPE SLOPE DRAINS
N/A N/A
LEVEL SPREADER LANDSCAPE/MULCH
South side of site Sidewalk planters
SEDIMENT POND TRAP SEDIMENT POND INLET/OUTLET
Detention vault N/A
SEDIMENT POND SIDE SLOPES SURFACE WATER OBSERVATION
(Creek, Wetland, or Lake) (Clear, Turbid, Sheen)
Concrete (detention vault) turbid puddles
WATER QUALITY SAMPLE TURBIDITY (NTU) pH OVERALL
Yes 18 6.0 BMPs adequate
SAMPLE LOCATION AREAS OF CONCERN
SE of site: 111th Ave swale outfall Silt fence, silt socks, watch sediment trackout
CORRECTIVE ACTIONS
repair silt fence around perimeter, replace silt socks
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.
1/13/2023 WAR307077 20130674E003 107
Sample Location Approximate Flow Turbidity NTU/Transparency pH Compliance
111th Ave Swale
outfall
18 6.0 Yes
ADDITIONAL COMMENTS:
While onsite, AESI observed the silt fence to still need repairs in some areas around the site. AESI recommends repairing
the silt fence around the perimeter and replacing the silt socks in the catch basins on 165th St. Conveyance channels may
also be used to direct water to a temporary sediment pond until the gutters are installed. AESI took a water sample from
the outfall swale on 111th Ave. The turbidity came back at 18 NTU and 6.0 pH. AESI reminded the contractor to watch for
sediment trackout and discussed adding straw on top of the exposed soils.