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22 May 1998 AGE-NC Project No. 95-0152 Page 5 of 7 Department of Water Resources(DWR) for water wells located in the surrounding area. The DWR search located six well drillers reports for wells installed near the site. However, water wells could not be located from the well driller reports due to insufficient location information. Copies of the well driller reports are included with Appendix B. 4.0. FINDINGS 4.1. SOIL PROFILE Generally,the soil profile from P5 consisted of a pale brown to red-brown,damp,partially cemented, silty fine sand from surface grade to depths of 15 feet bsg. A pale brown, damp, partially cemented, silty fine to medium sand was encountered from depths of 15 to 23 feet bsg. A mottled red-brown, .. gray to green, partially-cemented, silty fine-to medium- sand was encountered from 30 to 40 feet bsg in each probing. General lithology beneath the site in cross sectional view is depicted on Figure No. 3. 4.2 FIELD EVIDENCE OF PETROLEUM HYDROCARBON-IMPACTED SOIL Neither petroleum hydrocarbon odors nor organic vapors were detected in soil samples collected from probe borings P5 between surface grade and 40 feet bsg. _ 4.3. ANALYTICAL RESULTS OF SOIL SAMPLES A total of four soil samples from probing P5 were submitted for laboratory analysis of petroleum hydrocarbons. The laboratory reported that they did not detect any TPH-g, BTEX, MTBE, DIPE, TAME, ETBE or TBA from the soil samples selected for analysis. Analytical results from soil samples collected from probe boring P5 are summarized in Table 1. The laboratory report (Castle Analytical Laboratory Reference No. 1488 and GeoAnalytical Laboratories, Inc. Report No. J079- 06) and chain-of-custody forms are included as Appendix C. 4.4. ANALYTICAL RESULTS OF DOMESTIC WATER WELL SAMPLE One grab ground water sample was submitted for laboratory analysis of dissolved volatile organic compounds (VOCs). The laboratory reported that they did not detect any VOCs from the analysis. r Analytical results of the domestic water well sample are summarized in Table 2. The laboratory report (BSK Analytical Laboratories Lab No. 52387) and chain-of-custody forms are included as Advanced GeoEnvironmental,Inc.