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_ . _ <br /> F. <br /> MEN <br /> ga <br /> i SGv <br /> )2 2 <br /> Color Spot, Inc. <br /> August 16, 1991 (MB8166G) <br /> i <br /> �;,� • Environmental 5e vices Site Remediation, Color Spot Lodi <br /> I Inc. , February 1990 <br /> • Res onse Re 1 to Sa Toaaui�County public_ Health Services <br /> "nvironmental Health Division Letter Dated Januar 17 1990, <br /> April 1990 <br /> r_, • Sunalemental Site Assessment. or S of Inc. Facilit 5400 <br /> East Harner Lane Lodi California, November 1990 <br /> submitted to Color Spot, Inc, and to EHD. <br /> These reports have been <br /> A ground water sample was collected from MW-1 on May 22, 1991, by SGD <br /> in the presence of Ms. Diane Hinson, Supervising Environmen�.i1 Health Specialist, <br /> EHD. Before sample collection, the depth to ground water was measured at 73.25 <br /> feet below the top of the well casing. After approximately 6 gallons of ground <br /> ra water werAef eTo�e25from hourMsw, a, no ground water resample was collectedr could be )inremoved <br /> pre-packaged, <br /> bailer. <br /> disposable bailer. <br /> t The sample was transferred into two 40-milliliter glass valatile <br /> -_` organics analysis (VOA) vials, which contained NaHSO4 as preservative. The VOA <br /> vials were sealed with Teflon-lined screw caps without <br /> headspace, labeled, <br /> Chain-of- <br /> secured in plastic guard bottles, aad placed in a cooler with ice. Chain-af- <br /> ple from <br /> ction to <br /> custody dto�hetstate-certifi d laboratory, Coast-to Caoast Analytical Services <br /> delivery <br /> in Goleta, California. <br /> The ground water sample was analyzed for benzene, toluene, <br /> e, ethylene dibromide, and total <br /> ethylbenzene, total xylenes, 1,2-dichloroethan <br /> petroleum hydrocarbons (TPH). Analytical methods employed were EPA 5030 for # <br /> EPA 8 <br /> purge-and-trap extraction followed by 260 (gas chromatography/mass <br /> spectrography) and California Department of Health Services (AHS) Draft TPH, <br /> i <br /> modified. A laboratory-prepared travel blank accompanied the sampling equipment <br /> to the site and the sample back to the laboratory. <br /> As shown in Table 1 - Ground Water Sample Analytical Results, none <br /> of the fuel constituents were detected in the sample icept toluene, at a s concentration istvery <br /> race <br /> concentration of 0.0006 milligrams per liter (mg/1) . <br /> much lower than the DHS applied action level of 0'1 mg/l for toluene in drinking <br /> water. Table 1 also contains the results of the ground water analyses of samples <br /> from the nearby water wells previously documented in the SGD report dated April <br /> of <br /> 1.990, lister: above. Three of the nearby wells contained trace concentrations ed <br /> toluene equivalent to that found in MW-1. All four of the nearby wells contained <br /> - - ..... <br /> :._ -..net.....-_.. <br /> trace amounts of benzene and TPH but- - _. _- <br /> i �, <br />