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01 July 2003 <br /> AGE-NC Project No. 03-1015 <br /> Page 2 of 3 <br /> SOIL AND GROUNDWATER SAMPLING <br /> On 18 June 2003, an AGE representative met Mr. Michael Infuma of the SJCEHD at the site for <br /> approval of the requested sampling locations. Following SJCEHD approval, eight soil samples <br /> (ST-1, DB-2, LL-3 through LL-8) and one groundwater sample (WS-9) were collected at the <br /> specified locations. Sample ST-1 was collected at a depth of ten feet below surface grade (bsg), <br /> samples DB-2,LL-3 through LL-8 were collected at 3.5 feet bsg. Soil samples were collected using <br /> a Geoprobe soil sampling assembly loaded with four pre-cleaned 1.125-inch by 6-inch brass sleeves. <br /> One sleeve of each soil sample was preserved by covering both ends of the brass sleeve with Teflon <br /> sheets,capping,and sealing with tape.Sample ST-1 was angled at approximately 45 degrees to reach <br /> the area directly below the septic tank. Water sample WS-9 was collected at a depth of 10 feet bsg, <br /> using a temporary PVC screen. The hollow steel rods utilized in boring ST-1 were pulled out, and <br /> a screened casing was inserted into the saturated zone.Ground water was allowed to enter the casing, <br /> and samples were retrieved using a modified PVC tubing bailer. <br /> All samples were properly labeled,placed in a appropriate, chilled container and transported under <br /> chain-of-custody to Cal Tech Environmental Laboratory a State of California Department of Health <br /> Services (DHS)-certified laboratory. The samples were analyzed for: <br /> • Total oil and grease and total recoverable petroleum hydrocarbons (TRPH) in accordance <br /> with EPA Method 418.1; and <br /> • Volatile organic compounds (VOCs) in accordance with EPA Method 8260B. <br /> LABORATORY RESULTS <br /> TRPH was detected in soil sample DB-2 at a concentration of 12 mg/kg. No other target analytes <br /> were reported at concentrations above the detection limits. <br /> Copies of the laboratory report(CTEL Project No: CT214-0306117)and chain-of-custody form are <br /> included in Appendix A. <br /> SEPTIC SYSTEM REPAIRS <br /> On 26 June 2003, an AGE representative directed necessary repairs to the septic system. These <br /> repairs were required to bring septic system into working order.The repairs consisted of replacement <br /> of hard line from septic tank, installation of a new d-box, connection of d-box to leach lines, and <br /> Advanced GeoFnviron mental,Inc. <br />