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Surface and Subsurface Comam;-gion Report'APN: 207-290-03 & 16'Parcel Nos. 1,2,3,4&Des. Rem. <br /> The subject property is in an area known to contain 21 to 44 parts per million <br /> Nitrate (NO3). <br /> A binder entitled"Underground Tank Site Mitigation Database List" also <br /> available in the Environmental Health Department's office was consulted and no <br /> underground tanks were listed in the binder for the subject property. <br /> According to the aforementioned maps DBCP,Nitrates and underground tanks do <br /> not appear to be contamination contributors on the subject property. <br /> Well Water Analysis: <br /> The results of well water was tests for Dibromochloropropane (DBCP)and <br /> Nitrates(NO3) are made an integral part of this study by including the results of A &L <br /> Western Agricultural Laboratories testing which is contained in their attached letters <br /> dated September 12, 2002 and September 25,2002 and are attached to this report. The <br /> results of the A&L Agricultural Laboratories tests on the sampled well water are <br /> summarized as follows: <br /> Chemical Constituents <br /> Dibromochloropropane(DBCP) IuPJLI Nitrate (NO3) lm>sJL l <br /> 0.01 18 <br /> The Nitrate(NO3) and Dibromochloropropane(DBCP) concentrations for the <br /> well water sampled are well within the State's standards for safe public drinking water <br /> established at 0.2 ug/L and 45 mg/L for Dibromochloropropane(DBCP)and Nitrates <br /> (NO3) respectively. <br /> Mitigation Measures: Since no animals were found on the subject property,no <br /> excessive nitrate concentrations are anticipated from animal overpopulation and no <br /> correction for excess nitrate concentration is recommended <br /> No chemical residues or spillage of hazardous material or improper storage was <br /> noted. <br /> The San Joaquin County Agricultural Commissioner's report shows that the <br /> property owner has been complying with all rules and regulations for the appropriate safe <br /> storage and use of chemicals in producing agricultural crops. This compliance should <br /> then not produce any excessive or detrimental concentrations on the subject property. <br /> Also no recorded failure of the septic systems installed was evident or found to <br /> cause any problems of this type of contamination. <br /> Also there does not appear to have been any subsurface construction present or <br /> past that would contribute to below ground contamination. <br /> Tnr T. T)nira Tr -----'797!17(?rnnmc Rnad _----l)akAale___--rsi;fnmia Q,;,;c l 9 <br />