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Nitrate Loading Calculations <br />7007, 7111, 7313, 7327, 7338, 7451 and 74663 W. March Lane <br />Stockton, CA. 95212 <br />10/4/2022 <br />Concentration Rain (Nb): <br />1 <br />2 <br />3 <br />Variable <br />Value <br />Units <br />Description <br />Effluent Quanity (Q): <br />200 <br />gpd <br />effluent flow rate <br />Effluent Stream (NW): <br />45 <br />mg/L-N <br />effluent stream concentration <br />Site Area (A): <br />94.3 <br />Acres <br />Site area <br />Concentration Rain (Nb): <br />1 <br />mg/L-N <br />Concentration of rain <br />Denitrification(d): <br />0.050 <br />constant <br />Denitrification Factor <br />Annual Rainfall Recharge( R) <br />3.70 <br />In./yr. <br />Annual Rainfall Recharge <br />Table 1- Nitrate Loading Data <br />Waste Loading (W): 1 0.03 In./yr. I Uniform Waste Water Loading <br />(W) in/yr = (Q) gal/day X 1 ft3/7.48 gal X 365 day/lyear X 1 acre/43,560 ftz X 12 in/1 ft X 1/(A) acre <br />Nitrate Loading Calculations <br />Nitrate loading Calculation (Nc): 1 1.32 mg/L-N jAverage Nitrate Conentration <br />Nc= WN,,, (1-d)+RN,, Hantzche-Finnemore Equation <br />W+R <br />Sep -21 <br />Oct -21 <br />Nov -21 <br />Dec -21 <br />Jan -22 <br />Feb -22 <br />Mar -22 <br />Apr -22 <br />May -22 <br />Jun -22 <br />Jul -22 <br />Aug -22 <br />Sum <br />Water Balance -Recharge Analysis - Liden, California (ETO Climate zone 12) <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />Avg. <br />Precipitaton <br />(In/Month) <br />Avg. Run <br />off <br />Volume <br />(fraction) <br />Availabl <br />a Precip. <br />(In- <br />Month) <br />Potential <br />ETO <br />(In/Month) <br />Actual <br />ET <br />(In/Mon <br />th) <br />Net Rainfall <br />recharge <br />(In -Month) <br />0.09 <br />0.00 <br />0.09 <br />5.82 <br />5.06 <br />3.59 <br />0.00 <br />3.59 <br />3.55 <br />3.09 <br />0.50 <br />0.57 <br />0.00 <br />0.57 <br />1.49 <br />1.30 <br />3.87 <br />0.00 <br />3.87 <br />0.77 <br />0.67 <br />3.20 <br />0.07 <br />0.00 <br />0.07 <br />1.53 <br />1.33 <br />0.01 <br />0.00 <br />0.01 <br />2.78 <br />2.42 <br />0.52 <br />0.00 <br />0.52 <br />4.33 <br />3.77 <br />0.81 <br />0.00 <br />0.81 <br />5.6 <br />4.87 <br />0.01 <br />0.00 <br />0.01 <br />7.85 <br />6.83 <br />0.09 <br />0.00 <br />0.09 <br />8.18 <br />7.12 <br />0 <br />0.00 <br />0.00 <br />8.25 <br />7.18 <br />0 <br />0.00 <br />0.00 <br />7.3 <br />6.35 <br />9.63 <br />9.63 <br />57.45 <br />49.98 <br />3.70 <br />Table 2- Annual Rainfall Recharge <br />Annual Rainfall Recharge( R) 3.70 In./yr. jAnnual Rainfall Recharge <br />