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15 December 2008 <br />AGE-NC Project No. 06-1414 <br />Page 2 of 3 <br />The waste disposal line was traced to the termination point, where the top of the seepage pit was <br />made visible for inspection. The design of the septic system and locations of the sampling points are <br />indicated on the site plan (Figure 2). <br />SOIL AND WATER SAMPLING <br />On 08 February 2008, an AGE representative met Mr. Michael Infuma of the EHD at the site for <br />approval of the requested sampling locations. Following EHD approval, two soil samples (GP-1 and <br />GP-2) were collected at the specified locations. Sample GP-1 was collected at a depth of 9-feet <br />below surface grade (bsg), directly beneath the septic tank. Sample GP-2 was collected at 20-feet bsg <br />directly beneath the seepage pits. Soil samples were collected using a Geoprobe soil sampling <br />assembly loaded with four pre-cleaned 1.125-inch by 6-inch brass sleeves. The second sleeve of each <br />soil sample assembly was preserved by covering both ends of the brass sleeve with Teflon sheets, <br />capping, and sealing with tape. <br />All samples were properly labeled, placed in an appropriate, chilled container, and transported under <br />chain of custody to Cal Tech Environmental Laboratory (CTEL), a State of California Department <br />of Public Health-certified laboratory. The samples were analyzed for: <br />Total recoverable petroleum hydrocarbons, in accordance with EPA Method 1664; <br />Volatile organic compounds (full scan with methyl tertiary-butyl ether, benzene, toluene, <br />ethylbenzene, and total xylene), in accordance with EPA Method 8260B; and <br />Cadmium, chromium, copper, lead, nickel, and zinc, in accordance with Method SW846 <br />3050 and 6010B. <br />LABORATORY RESULTS <br />None of the volatile organic compound (VOC) analytes were reported at concentrations above the <br />detection limits. Background traces of metals were detected at levels above the laboratory limits. <br />Copies of the laboratory report (CTEL Project No: CT214-0802072) and the chain-of-custody form <br />are included in Appendix B.