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Home My WebLink About20160674E003 Bethany Corner 2022-12-29 TESC 105.pdf www.aesgeo.com 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. 12/29/2022 Bethany Corner 20160674E003 105 LOCATION CITY MUNICIPALITY CSWGP 16451 111th Ave SE Renton Renton WAR307077 PREVIOUS SITE VISIT CLIENT/OWNER WEATHER 24 HOUR RAINFALL PAST WEEK RAINFALL 12/21/2022 Mark Seek (Tiger Mountain Homes) Rain, 40's 0.22" 2.76" 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 3 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 silt fence installed along NW perimeter Is this site in compliance with the terms and conditions of the SWPP and CSWGP discharge Permit? Yes www.aesgeo.com TESC REPORT DATE CSWGP PROJECT NO. TESC REPORT NO. 12/29/2022 WAR307077 20130674E003 105 Sample Location Approximate Flow Turbidity NTU/Transparency pH Compliance 111th Ave Swale outfall 3 6.0 Yes ADDITIONAL COMMENTS: While onsite, AESI noted that the contractor had installed silt fencing along the NW perimeter. 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. 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 3 NTU and 6.0 pH. AESI noted that the contractor had planted additional plants and mulch on the east entrance.