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z SG 1 s D� Color Spot, Inc. October 10, 1989 (88168B) The elevation of the site is approximately 45 feet above mean sea 3 level with site drainage to the south. Ground water reportedly underlies the site at a depth of approximately 65 feet. Bear Creek is approximately l mile !-- south of the site. Grauld Water Cantsmination. The analytical results of the ground s facility are water samples collacted from the domestic water wells at the i presented in Table 1 - Analytical Results of Ground Water Sampling, and are l ' included in Appendix A. 1 TABLE 1 r AFALYTICAL RESULTS OF GROUND WATER SMPLTNG ? 1,J (results In ppm) Sample TPH Total Flo Nrizene Toluene Ethylbenzene enes EDC EDS Casein Lead t Xyl ` —� NF NF c0.05 .40.005 House No.10 Well NF NF NF NF ( } NF NF NF 5338 Well NF NF NF e0.05 <O.COS NF NF NF NF <0.05 <0.005 524ff a 0.0001 NF E Acton Loyola 0.001* 0.10• 0.68• 1.75° 4.0005" 4.00002 1,000 ) Nol roundNF DOHS Applied Action tevele tot drinking water 1 i +• Total Threshold Umit Concentration(TTLC),Califomla Administrati"Code,Title 22 The data indicates that ground water in the dells does not contain i i hydrocarbon contamination above. regulatory ac ls. BTEX, EDB, and EDC were not found in the Houses No. 10 well or th 533E wel Trace concentrations i of benzene (0.0001 parts per million (ppm]) were Detected in the 5298 well, but � . this concentration is below regulatory action. levels. Na other BTEX compounds j were detected in the well. TPH and total lead concentrations were below detection limits. FF1 ; Soil Aapo. Survey. 'The readIts of the soil vapor survey . are "F z' Jpresented in Table 2 - Soil Vapor Survey Fesults, August 1989. Diesel fuel vapor contamination within the shallow subsurface (depth -l— of-- does not appear to have migrated laterally _ .._-...-- - _-__ - � . outside of the tank excavation and appears to.ba limited to the-sauthwest.carner ----- - a' f of the :excavation. i . 44 oil 1131MIN in-IMMOM r ; - _ 3