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ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTY Unit Supervisors <br /> Donna K.Heran,RE.H.S. Carl Borgman,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor <br /> N: Director Mike Huggins,R.E.H.S.,R.D.I. <br /> " Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> �.. Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> '9�nFOR�\ Laurie A.Cotulla,R.E.H.S. Robert McClellon,R.E.H.S. <br /> Program Manager Fax: (209) 464-0138 Mark Barcellos,R.E.H.S. <br /> May 20,2002 <br /> FILE C <br /> Lima Ranch <br /> C/O Jack and Pati Hamm <br /> 13436 North Thornton Road <br /> Lodi, California 95242 <br /> RE: Soil Suitability/Nitrate Loading Study pertaining to Agricultural Wastes <br /> At 13436 North Thornton Road, Land Use Application# SA-O1-51', <br /> Service Request SR0026595 <br /> The Environmental Health Department(EHD)has reviewed and accepted the revised Soil <br /> Suitability/Nitrate Loading Study (hereinafter referred to as "Study") dated April 19, 2002 and <br /> addendum dated April 26,2002. The Study estimates that over 71%of the manure solids <br /> produced from this expanded dairy facility will need to be hauled off site. <br /> Based on information contained within the study, elevated levels of nitrates (NO3)in drinking <br /> water have been shown in onsite and off site wells. With the elevated levels of NO3 in your <br /> drinking water wells,the EHD and state law requires that you provide notification and an <br /> approved bottled water supply for your farm labors residing in housing that is supplied by these <br /> wells. You are required to provide proof of notification to Environmental Health Department by <br /> July 1, 2002. <br /> The EHD believes that a sound,monitoring program needs to be instituted in order to not <br /> exacerbate the nitrate conditions that have been shown in the wells in the Study. As discussed <br /> with you, it is the EHD's belief that your intention of utilizing City of Lodi's Monitoring Wells <br /> and Reports must be evaluated by an approved consultant of your c1mige and EHD. This <br /> evaluation must be completed to determine if the City monitoring well(s) will reflect current and <br /> future NO3 conditions of your dairy. This should be completed and submitted to EHD by <br /> November 30,2002. <br /> It is the EHD's intent under the State of California Porter-Cologne Water Quality Control Act <br /> not to usurp any action of the State of California. In order to support the proposed expansion and <br /> construction of the new milking facilities (SA-01-52),EHD is requiring that a monitoring <br /> program for your drinking wells as defined in the Study,page 6,be analyzed for NO3on a <br /> calendar quarter basis for the first year. Based on data collected and submitted to the EHD along <br />