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fl <br /> fl <br /> Atlantic Richfield Company 3 <br /> ARCO 2133,2908 Ben arrun Holt Dr Stockton CA September 10 2002 <br /> SUMMARY OF FINDINGS <br /> • The soil sample collected from beneath the waste-oil UST reported <br /> hexavalent chromium, chronuum, nickel, zinc, and lead were reported <br /> at concentrations of 14 mg/kg, 35 mg/kg, 38 mg/kg, 49 mg/kg, and <br /> 12 mg/kg, respectively All other constituents analyzed for were <br /> reported as nondetect <br /> • Stockpiled pea gravel generated during the removal of the waste-oil tank <br /> was re-used onsite <br /> If you have any questions or comments regarding this letter,please call us at (916) 861- <br /> 0400 <br /> Sincerely, <br /> SECOR International Incorporated <br /> Clinton Harms R <br /> ��oQ � <br /> SPA- <br /> Project <br /> Scientist QJS� �"0 y <br /> C(}58399 <br /> * Expo <br /> Rusty Benkosky, sr CMt �P <br /> Senior Engineer q�OFCAL\i <br /> Attachments Table 1 - Soil Analytical Data—Waste-Oil UST <br /> Table 2 - Soil Analytical Data - Stockpiled Soil <br /> Figure 1 - Site Map with Sample Locations <br /> Attachment A - Field and Laboratory Procedures <br /> Attachment B - Certified Analytical Reports and Chain-of-Custody <br /> Documentation <br /> Attachment C - Hazardous Waste Manifests <br /> cc Mr Paul Supple, Atlantic Richfield Company <br /> Mr Scott Listar, Atlantic Richfield Company <br /> t - <br /> Project/ARCO/2133/waste oil tank pull doc <br />