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LIVE OAK G.EO .ENVIRO.NMENTAL, .INC. <br /> 407 W. Oak St., Lodi, CA 95240 (209)389-0375.•logelodi.com <br /> January 20, 2010 <br /> Transmitted by U.S. Mail <br /> Project Number: 1025 <br /> Jim Hoagland <br /> Roland Construction <br /> 3269 Tomahawk Dr. l <br /> Stockton,CA 95205 <br /> Regarding: Water Testing Results <br /> Cheema 1Freightiines Soil Suitability Study <br /> --4258&4274 S.-High-way 99,`Stockt0n;CA l <br /> PA-1000135 (SA) <br /> Dear Mr. Hoagland: <br /> and: <br /> We have received the analytical results for the water sample collected on the Cheema Freightlines <br /> property as part of the above Soil Suitability Study. Live Oak collected a water sample from the domestic <br /> well on the Site on January 7, 2011. The sample was to be analyzed for nitrate and C <br /> dibromochloropropane (DBCP) per San Joaquin County Environmental Health Department policy. As <br /> required by the laboratory, the sample was collected in a plastic container and two glass vials for nitrate <br /> and DBCP analysis, respectively. A trip blank was also utilized. The sample was transported under chain / G{ <br /> of custody to FGL"Environmental, Stockton, within ten minutes of collection. C J <br /> jNitr�atwa <br /> s detected in the sa n#ration f 1 - <br /> mg/L NO3. This result is well below the <br /> um Contaminant Le el (MCL)of 45 _ -NO3 set by the US EPA. Nitrate is commonlydetected in <br /> shallow ground water aquife entral Valley. Application of fertilizers, livestock waste, and <br /> untreated septic tank waste can all contribute to nitrate in ground water. Nitrate is mobile and tends to <br /> accumulate in shallow ground water zones. Based on work in the Sacramento Valley from the early <br /> 1900s, it is estimated that under"natural"conditions,ground water contains nitrate at concentrations no <br /> more then about 13.5 mg/L-NO3 (3 mg/L-N). Nitrate may be increasing in areas with concentrations of <br /> 24.75 mg/L-NO3(5.5 mg/L-N)or more(Hull,1984). <br /> flBCP was not detectedlinthe sa e. DBCP is a nematocide and soil fumigant for vegetables and <br /> a es: Most dbmest' BCP was discontinued in 1977 through 1979:The US EPA set the MCL <br /> at 0.2 parts per billion (ppb)because it believes that given present technology and resources, this is the <br /> lowest level to which water systems can reasonably be required to remove this contaminant should it <br /> occur in drinking water. The Maximum Contaminant Level Goal (MCLG)for DBCP is zero. <br /> The analytical results are attached. if we can be of any further assistance, please do not hesitate to call. <br /> Sincerely, <br /> Live Oak GeoEnvironmentel,Inc. <br /> OCa�, <br /> r <br /> David J. Welch,CEG,CHG, PGP,Owner oaI/ <br /> DJ W:ar �celved <br /> Attachment <br /> CC: Michael Escotto,San Joaquin County Environmental Health Department <br /> Environmental •S Engineering Geology ❖ Geophysics <br />