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Riechers Spence & Associates Job #: 21 02 049.0 <br /> Consulting Civil Engineers Date: 10/24/02 <br /> L Central Valley Region <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA, 95827-3003 <br /> Attention: Timothy R. O'Brien <br /> Re.: Ehlers Family Estate Winery <br /> Process Wastewater Treatment System <br /> 9301 W Highway 12 <br /> Lodi, CA 95242 <br /> A.P.N.: 025-080-002 <br /> L <br /> Dear Mr. O'Brien: <br /> The Ehlers family is proposing to construct a new wine production facility at <br /> 9301 W Highway 12 in Lodi, California. Annual production capacity of this <br /> new facility will be 15,000 cases of wine per year. <br /> Ehlers is proposing to build this facility in one phase being fully operational for <br /> the 2003 crush. The conversion of an existing onsite storage building to the <br /> production facility has been proposed and applications for site approval <br /> have been made to San Joaquin County and the RWQCB (Apl. # PA-02-146). <br /> The small winery facility will only be used for the production of wine and no <br /> public tasting is proposed. <br /> For treatment of the process wastewater a new activated sludge treatment <br /> system will be constructed. At full production the system will consist of a <br /> three cell aerated tank facility with sludge return. The cell usage will be <br /> adjusted according to the production of the winery throughout the year to <br /> provide sufficient treatment of the process wastewater. An equalization tank <br /> L will be added before the aeration tanks. Screening and pH adjustment will <br /> occur in this equalization tank. <br /> After treatment, the reclaimed process wastewater will be stored in an <br /> existing onsite irrigation pond and disposed of through drip irrigation. The <br /> irrigation plan will supplement the existing irrigation of approximately 268 <br /> �- acres of vineyard, 10 acres of corn, 5 acres of pumpkins and 82 acres of <br /> tomatoes. <br /> L <br /> L <br /> 2 <br /> L <br />