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October 4,2001 <br /> " Job Number:LGOO-287 <br /> Page 12 <br /> Nitrates from Vineyard Fertilizers <br /> Frank Natsis indicated that no fertilizer has ever been applied to the vineyard. He has no <br /> plans to use fertilizer in the future. Soil-amendments (grape skins,leaves, seeds, and twigs)may <br /> be placed between the vineyard rows once a year: <br /> #. Since no fertilizers are planned to.be applied to the vineyard, fertilizers will not be <br /> considered in the nitrate loading balance. Irrigation of the vineyard will be considered"in <br /> balance"-=plants and.evaporation will utilize all the irrigation applied to the'vineyard. <br /> Irrigation.of the vineyard will not be considered in the,nitrate loading balance. <br /> Nitrates from Winery Waste <br /> The planned vineyard production is unknown at-this time. The waste water generated <br /> from wine proeessing.is the wash water needed to clean equipment and clean the inside of the <br /> stainless steel tanks. The winery waste water will be generated between September and . <br /> 5 <br /> November. The winery wastewater will be contained in tanks and hauled off the site. <br /> Since the waste water will be removed from the site, it will not be-considered in the <br /> nitrate loading balance. <br /> Table-8: <br /> Summary of Nitrate Mass Balance Analysis. <br /> ` Result(mg/1,N) Acres Quantity Effluent Denitrification Rainfall <br /> IO rng/f.-N is MCL for (gal/day) Concentration; M) infiltration <br /> drinking water. (mg/L-N) (in) <br /> 0.8 69.59 731 . 45 25 7.86 <br /> *Note:Maximuin contaminate 1 vel. CL)for Nitrate is 10 mg/L-N and 45 mg/L as NO3. Please note that the <br /> average septic waste water level o mg1lrN isnot related to the drinking water MCL of 45 mglL as NO, <br /> Table 8 presents the summary of the analysis utilizing a septic system. As a result of the <br /> ` analysis, the use of the septic system will not cause a build up of nitrates above the maximum . <br /> contaminate level for nitrates (1 O mg/L-N) given the assumptions. This is primally due to the, <br /> ils- deep ground water, and relative low daily flow of the <br /> large size of the property, clayey so <br /> system. No agricultural fertilizers have been used in the vineyard and winery waste water is <br /> pp <br /> ro osed.to'be stored in tanks and hauled off site. <br /> . o t <br />