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26 August 2003 AGE-NC Project No. 03-1025 Page 2 of 3 SOIL AND GROUNDWATER SAMPLING On 19 August 2003, an AGE representative met Mr. Michael Infurna of the SJCEHD at the site for approval of the requested sampling locations (Figure 2). Following SJCEHD approval, nine soil samples (LL-1 through LL-3, 1313-4, LL-5 through LL-8, ST-9) were collected at the specified locations; sample ST-9 was angled at approximately 25 degrees to reach the area directly below the septic tank. Sample ST-9 was collected at a depth of 13 to 15 feet below surface grade (bsg); samples LL-1 through LL-3, LL-5 through LL-8 and DB-4 were collected at 4 to 6 feet bsg. Soil samples were collected using a Geoprobe soil sampling assembly loaded with four pre-cleaned 1.125-inch by 6-inch brass sleeves. Two sleeves of each soil sample were preserved by covering both ends of the brass sleeve with Teflon sheets, capping, and sealing with tape. All samples were properly labeled,placed in an appropriate,chilled container and transported under chain-of-custody to Cal Tech Environmental Laboratory,a State of California Department of Health Services (DHS)-certified laboratory. The samples were analyzed for: • Carbon Chain Full Scan(C-6 through C-40) in accordance with EPA Method 8015M; • Total oil and grease and total recoverable petroleum hydrocarbons (TRPH) in accordance with EPA Method 418.1; • Volatile organic compounds (VOCs), reporting all peaks in accordance with EPA Method 826013; and • pH in accordance with EPA Method 150.1. FIELD OBSERVATIONS The soil samples collected from D13-4 and LL-7 had a detectable,unidentified odor;the odor did not resemble petroleum-based contaminants,but did resemble the contents previously inside the septic tank before the contents were pumped out on 03 June 2003. The presence of the odor and it's non- petroleum nature-was confirmed by a Cal Tech representative. LABORATORY RESULTS None of the target analytes were reported at concentrations above the detection limits. Soil sample pH measurements ranged from 6.94 to 8.93.Copies ofthe laboratory report with QA/QC data(CTEL Project No: CT214-0308083) and chain-of-custody form are included in Appendix A.