Laserfiche WebLink
Mr. Sandi De.Tong <br /> October 10,2006 <br /> Page 4 <br /> Table 3. <br /> Current Meter Flow with Calculated Increased Usage for Nexv Facility <br /> Previous Flow per Day Additional Flow Prediction for New Facilitv Final Predicted Pow <br /> 133.95 gpd 133.95 x 50 4i6 200.92��d <br /> Proposed Small Cheese 71.23 gpd <br /> 1�lallaig Facihty (blow Prediction based on replica faciiiry flow meter. 71.23 ,Zpd <br /> (3 year maxirnurn use) calculation,"Oakdale Checsc") <br /> Total Flow 272.15 gpd <br /> 4.0 SOURCES AND IMPACT OF NITRATE TO GROUND WA'T'ER <br /> 4.1 Current Off-Site Sources of Nitrate <br /> Septic systems, agriculture, and dairies in the atea may be the most significant sources of nitrate. <br /> Septic tank use in tl.,.e vicinity is discussed in Section 3.4 was found to be moderate. The septic use is <br /> sta l found to be moderate. <br /> 4.2 Contribution of Rainfall <br /> An estimate of the quantity and quality of rainfall was required for the nitrate loading analysis. The <br /> estimate of deep pe,:col.ation of rain is based on the average monthly precipitation of rainfall and <br /> evapotranspiration for Lodi,Cabfotnia. The estimate .first determines whether the average monthly <br /> precipitation exceeds average monthly potential cvapotranspitation. If so, then the difference is <br /> potential deep percol<ltion_ This Method does not consider runoff. See Plate 9 for the data and <br /> calculation. <br /> Average potential evapotranspiration and ave.tage.tainfall data was obtained from ncc Califouua <br /> Irrigation NIniingement Tnformation System (CIMIS). The data From January 1,988 to December. <br /> 2004 was used for the calculation. <br /> Based on this method,the average deep percol<ltion of rain for the Lodi area is estitnated to be 5.76 <br /> inches. The nitrate concentration of rain full was estimated to be 1 mg/L-N (Hantzsche and <br /> Finnemorc, 1992). <br /> 4.3 Current On-Site Sources of Nitrate <br /> Current on-site sources of nitrate include the septic system for the coffee drivc-flri. <br />