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WORM PROPOSAL <br /> We propose to drill and install 3 Monitoring wells (MW- 14, MW-15 and MW-16). MW- 14 located <br /> on the southwest side of this station , MW- 15 on the Pep Boys property and MW- 16 along the west <br /> side of Grant Street on private property, which is a gas station. These wells will monitor the <br /> groundwater coming from 749 E . Charter Way, Stockton, CA. <br /> The drilling will be performed with a hollow stem auger by Spectrum Exploration Drilling . The <br /> wells will be drilled to a depth of 50 feet below the surface (bgs). Soil samples will be taken every <br /> 5 feet during the drilling and analyzed with our OVA meter. Soil samples from 40 and 50 feet will <br /> be sent to Sherwood Labs for testing as outlined in the Laboratory Testing section of this work <br /> plan . If any soil samples test positive during the OVA testing they will also be sent for analyses. <br /> j The wells will be completed by placing 0.02 slotted casing in the bottom 20 feet of the well and <br /> blank casing from 30 feet to the surface. Number 3 neat sand will be placed opposite the slotted <br /> casing and 5 feet above it. A transitional seal will be placed from 25 to 22 feet which will consist of <br /> hydrated bentonite. From 22 feet to the surface the casing annulus will be filled with hydrated <br /> cement. Above the wells a traffic box will be placed and the wells will be capped with a locating <br /> cap and lock. <br /> The wells will be developed soon after they are installed . <br /> Boring <br /> One boring (B-4) will be place on the southeast side of the stations property in the vicinity <br /> of the old tanks . It will be drilled to a depth where we are confident no contamination has <br /> penetrated . We estimate the depth to be about 150 feet. Soil samples will be taken every <br /> 5 feet and will be logged . Water samples will be taken every 10 feet starting at 60 feet <br /> bgs to the depth of the boring . The water samples will be tested by Mobile Cam on site, to <br /> see if the contamination ceases . Drilling will be stopped when 10 feet of water samples <br /> are free of contamination . <br /> The following tests will be performed on the soil and water samples by Sherwood Labs, of Hilmar, <br /> CA. The samples will be placed on ice in a cooler until they are delivered to the laboratory. <br /> Soil Testing <br /> EPA 8260 for MtBE, TAME, ETBE, DIPE, TBA, 1 -2 DCA and EDB 10 and 800 <br /> u /K <br /> EPA 8020 and 8015 for BTEX and TPH 3 and 50 <br /> ug/Kg <br />