Laserfiche WebLink
Victor Sherven <br /> UPGRADIENT <br /> January 30, 1995 <br /> Page 2 <br /> Mr. Hyduke and/or Valley Motors, Inc., to the best of their knowledge, have never <br /> used stoddard solvents. There is, however a paint company, Downing North, across the <br /> street from Valley Motors which may be the source of the stoddard solvent. <br /> Please prepare a bid based on the following outline of the necessary investigation in <br /> order to determine the source of contamination and conduct the required clean up and <br /> monitoring: <br /> 1. Place 5 auger borings at locations around the removed tanks to determine the <br /> extent of the soil contamination: <br /> a. Soil samples would be taken at 5' intervals from 10' bgl to the capillary <br /> fringe (estimated to be about 70' bgl.) <br /> I <br /> b. Using a Hydropunch or BAT tool, obtain a sample of the groundwater. <br /> 2. Place a soil boring in the approximate center of the area with the highest <br /> i <br /> readings; take soil samples as above. <br /> a. Convert the soil boring to a groundwater monitoring well; estimated <br /> depth of 80' bgl. <br /> i <br /> b. Well would be developed, purged, tested and sampled using standard <br /> field protocol (LUFT Manual Guidelines). <br /> 3. Soil samples would be tested for BTRX and TEPH (stoddard solvent) using a <br /> California Certified Laboratory. <br /> 4. Water samples (both from soil borings and monitoring well) to be tested for <br /> BTEX, TPH-G and TEPH (Stoddard solvent). <br /> i <br /> 5. Depending on the laboratory analyses, the monitoring well would be either <br /> tested one month later or put on a quarterly monitoring program. <br /> 6. The soil borings could be converted to wells at the time they are drilled if field <br /> evidence suggests it to be advisable. The location of three (3) of the wells <br /> should triangulate around the source fifty (50) feet. <br /> r <br /> k <br />