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f . <br /> 15 April 2002 <br /> AGE-NC Project No. 00-0729 <br /> Page 2 of 3 <br /> 3.2. SOIL SAMPLE COLLECTION <br /> Discrete soil samples were collected at selected intervals from each soil boring. Soil samples were <br /> collected using a Geoprobe soil sampling assembly loaded with four pre-cleaned 1.125-inch by <br /> 6-inch brass sleeves.Soil samples were preserved by covering both ends of the selected brass sleeve <br /> with Teflon sheets,capping, and sealing with tape. Each sample sleeve was labeled with soil probe <br /> ' boring location, depth, time, date and sampler's initials. <br /> .Each preserved sample was logged on a chain-of-custody form, placed in a chilled container and <br /> transported to Cal Tech Environmental Laboratories (CTEL) a California Department of Health <br /> L► Services (DHS)-certified laboratory. Selected samples were analyzed for: <br /> f Total petroleum hydrocarbons as gasoline (TPH-g) in accordance with EPA Method <br /> 8015 Modified; <br /> # Benzene, toluene, ethylbenzene and total xylene"(BTEX), and methyl tertiary butyl ether <br /> v (MTBE)by EPA Method 8020. <br /> 3.3. EQUIPMENT DECONTAMINATION <br /> W <br /> Prior to sample collection, Geoprobe soil sampling equipment was thoroughly rinsed with clean <br /> water after washing with a solution of Alconox.Geoprobe rods were thoroughly cleaned prior to soil <br /> R probe boring advancement. <br /> r 4.0. FINDINGS <br /> Laboratory analysis of soil samples was utilized to assess for hydrocarbon-impacted soil at the site. <br /> 4.1 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> t <br /> A total of four soil samples were submitted to CTEL for analysis as noted above. TPH-g, BTEX <br /> compounds and.MTBE were not detected at or above laboratory reporting limits in the soil samples <br /> analyzed. <br /> Analytical results of soil samples are summarized in Table 1. Copies of the laboratory report <br /> (CTEL Lab I.D.Nos.0203-162-1,0203-162-5,0203-162-10 and 0203-162-15)and chain-of-custody <br /> form are included in Appendix A. <br /> t <br /> 1r Advanced GeoEnvironmental,Inc. <br /> �r <br />