Laserfiche WebLink
LUCCA WINERY <br /> SOIL SUITABILITY & NITRATE LOADING STUDY MAY 2013 <br /> Nr = 0.59 ppm Nitrate as Nitrate (NO,) <br /> The calculated nitrate loading concentration in the recharge effluent from the new <br /> restroom in Phase I and the proposed restroom in Phase II is calculated to be under the <br /> Maximum Contaminant Level limit for nitrate in drinking water. The variables used in the <br /> calculations above are conservative. For example, the ADF of 126 gals/day is assumed <br /> 365 days per year. Secondly, the use of 103 mg N/L, is a much higher nitrogen <br /> concentration than those concentrations published from household or domestic sources. <br /> Various researchers place the nitrogen reduction occurring in septic tanks at 10% to <br /> 20%. From the May 8, 2003 Symposium "Onsite Wastewater Treatment - Nitrogen <br /> Removal," Dr. Stuart Oakley of Chico State University states that "approximately 20% of <br /> the total nitrogen generated is removed in the septic tank." <br /> Page12 <br />