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MALS p <br /> CE <br /> TEAM <br /> JUi�i <br /> � ' LIZ <br /> June 1, 1994 ENVRONMEN fel_ !-!EAI_TH <br /> PERMIT/SERVICES <br /> MOBIL OIL CORPORATION ALTON GEOSCIENCE . <br /> 3800 West Alameda Avenue, Suite 700 30A Lindbergh Avenue <br /> Burbank, California 91505-4331 Livermore, California 94550 <br /> Alton Project No. 30-0136 <br /> ATTN: MR. STEVE PAO <br /> SITE: FORMER MOBIL BULK PLANT 04-343 <br /> 500 EAST GRANTLINE ROAD <br /> TRACY, CALIFORNIA <br /> RE: QUARTERLY PROGRESS REPORT, SECOND QUARTER 1994 <br /> This report presents the results of fluid-level monitoring and ground water sampling. On May <br /> 2, 1994, fluid-levels were measured and ground water samples were collected from Monitoring <br /> Wells AW-1 through AW-12. Ground water samples were submitted to a state-certified <br /> laboratory for analysis. No hydrocarbons were detected in any of the wells except AW-10, <br /> which had a TPH-D concentration of 210 ppb. Groundwater samples were submitted to a state- <br /> certified laboratory for analysis. The results are attached. <br /> ATTACHMENTS: <br /> • Figure 1: Vicinity Map <br /> • Figure 2: Ground Water Elevation Contour Map <br /> • Figure 3: Dissolved-Phase Hydrocarbon Concentrations <br /> • Table 1: Summary of Ground Water Sampling and Analyses <br /> • Appendix: Field Procedures, Laboratory Reports, Chain of Custody Records, and <br /> Field Data Forms <br /> Please call us at (510) 606-9150, if you have any questions regarding this project. <br /> ALTON GEOSCIENCE ��S G �,� <br /> Northern California Operations <br /> Q <br /> a s� 140.502 <br /> Ron A. Scheele ames A. Le man, R.G. ` q p <br /> Geologist Associate OFC <br /> 110 olg*iat project arrricea summarized in this report love been Ioodueted in aeeordat a with cureeut practice and the arandard of caro exeroi:ed by YeoloYiM <br /> m-in- .,....:q;::re baled wick npan m aeajysia of the aeser'vod conditions. If achial canditicw differ from <br /> those described is this report,our office should be notified. <br /> mA...Umobi1W4-343WC343r4.gfm <br /> 30A Lindbergh Avenue <br /> Livermore,Calilomia 94550 <br /> (510)606-9150•FAX(510)606-9260 <br />