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S r VA ETTLER-RYA N INC. • April 25, 2000 Mr Bob Cochran Chevron Products Company P O Box 6004 San Ramon, California 94583 Subject Soil Sampling Report for Former Chevron Service Station #9-5775, 301 West Kettleman Lane, Lodi, California Mr Cochran At the request of Chevron Products Company (Chevron), Gettler-Ryan Inc (GR) collected soil samples at the subject site in order to pre -profile soil in areas to be excavated, in order to facilitate direct loading and removal of the soil from the site The work performed was originally proposed in GR work plan #346408 10, Disposal Profiling of Soil, dated April 6, 2000 This work was approved by the San Joaquin County Public Health Services (SJCPHS) on April 10, 2000 A copy of SJCPHS soil boring permit 40022385 is attached On April 12, 2000, GR collected ten composite soil samples from three areas at the site Service Bay, Car Wash Reclamation Tank, and Reverse Osmosis Tank areas (Figure 2) Soil sampling was performed using a GeoProbe GeoProbe activities were performed by Fisch Environmental (C57 4683865) In the Service Bay Area, samples were collected at 2, 4, 6, and 8 feet below ground surface (bgs) from five borings, and samples were collected at 2, 5, 10, and 13 feet bgs from four borings in the Reverse Osmosis Tank area The four samples collected from each of these borings were composited into one sample for analysis Two borings were advanced in the Car Wash Reclaimation Tank area, and samples were collected at 4 and 7 feet bgs The four samples in this area were submitted as one composite sample Ten composite soil samples were submitted to Sequoia Analytical (ELAP #1624) for analysis Each composite sample was analyzed for Total Petroleum Hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and xylenes (BTEX), and methyl tert-butyl ether (MtBE) by DHS LUFT Method, and for lead by EPA 6000/7000 Series Methods laboratory reports and chain -of -custody are attached Results of the chemical analyses are summarized in Table 1 Soil in the Service Bay and Reverse Osmosis Tank areas had minor concentrations of ethylbenzene and xylenes up to 0 0921 and 0 337 parts per million (ppm), respectively Soil samples from the Car Wash Reclaimation Tank area were non -detect for TPHg, BTEX, and MtBE Based on these results, soil excavated from the Service Bay and Reverse Osmosis Tank areas will be hauled from the site by Chevron for disposal at BFI landfill in Livermore, California Soil excavated from the Car Wash Reclaimation Tank area will be stockpiled on-site for use during subsequent construction activities If you have any questions, please call us in Sacramento at (916) 631-1300 :;Qy,9�� David Herzog LGeo' gist Stephen J Carter Senior Geologist, R G 5577 D GE�I J c,�9 ��► No. 5577 Attachments Table I Soil Chemical Analyira+44i' Figure 2 Site Plan Well Permit #0022385 Chemical Analytical Report and Cham -Of -Custody Forms 346408 10-1 6747 Sierra Court, Suite J Dublin, California 94568 (925) 551 -7555