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f T %./ Soil samples were collected with a metric soil sampler loaded with two clean, 2 X 3-inch brass tubes. The ends of the tubes were covered with aluminum sheets, capped and sealed with tape. The samples were labeled, logged on a chain of custody and stored on ice pending transport to a Sparger Laboratories in Sacramento. The eight samples collected from the stockpiled soil were composited at a ratio of 2 : 1 for analysis. All samples were analyzed for total petroleum hydrocarbons (TPH as gasoline) , volatile aromatics (BTE&X) and total lead in accordance with EPA methods 8015m, 8020 and 6010 respectively. 4.0 FINDINGS No petroleum hydrocarbons were detected in any of the samples collected from the excavation or stockpiled soil (Table 1) . Low concentrations of lead were detected in most of the samples, but only sample (SP 5-6) contained concentrations above the normal background level of 7-10 ppm for this area. This sample was reanalyzed using the WET lead test with deionized water. Laboratory results showed a soluble lead concentration (STLC) of 0. 33 ppm, well below the hazardous waste level of 5. 0 ppm. The laboratory �-' report and chain-of-custody are included in Appendix A. 5. 0 CONCLUSIONS AND RECOMMENDATIONS No significant levels of contamination were detected in either the excavation or the stockpiled soil. We recommend that the excavation be backfilled with the stockpiled soil and the site be closed. 6.0 LIMITATIONS Our professional services were performed using. that degree of care and skill ordinarily exercised by environmental consultants practicing in this or similar localities. The findings were mainly based on analytical results provided by an independent laboratory. No other warranty, expressed or implied, is made as to the professional recommendations contained in this report. The opportunity to prepare this report is greatly appreciated. Please contact our office if you have any questions or comments. f 2