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Table 1- Nitrate Loading Data <br />Waste Loading (W): s.5: In./yr. 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 ft' X 12 in/1 ft X 1/(A) acre <br />Nitrate Loading Calculations <br />Nitrate loading Calculation (Nc):l 11.17 mg/L-N jAverage Nitrate Conentration <br />Nc= WN,.. (1-d)+RN. Hantzche-Finnemore Equation <br />W+r <br />March <br />April <br />May <br />June <br />July <br />August <br />Septembe <br />October <br />Novembe <br />December <br />January <br />February <br />sum <br />(Ct) runoff (in) <br />(P) Rainfall (in) <br />Nitrate Loading Data: <br />5 <br />Variable <br />Value <br />Units <br />Description <br />Effluent Quanity (Q): <br />2100 <br />gpd <br />effluent flow rate <br />Effluent Stream (Nw): <br />3S <br />mg/L-N <br />effluent stream concentration <br />Site Area (A)`. <br />5 <br />Acres <br />Site area <br />Concentration Rain (Nb): <br />1 <br />mg/L-N <br />Concentration of rain <br />D2 ca <br />0.300 <br />constant <br />Denitrification Factor <br />Deep Perc. Of Rain( R) <br />5.25 <br />In./yr. <br />Deep percolation of rain water <br />Table 1- Nitrate Loading Data <br />Waste Loading (W): s.5: In./yr. 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 ft' X 12 in/1 ft X 1/(A) acre <br />Nitrate Loading Calculations <br />Nitrate loading Calculation (Nc):l 11.17 mg/L-N jAverage Nitrate Conentration <br />Nc= WN,.. (1-d)+RN. Hantzche-Finnemore Equation <br />W+r <br />March <br />April <br />May <br />June <br />July <br />August <br />Septembe <br />October <br />Novembe <br />December <br />January <br />February <br />sum <br />(Ct) runoff (in) <br />(P) Rainfall (in) <br />Curve Number (CN) <br />5 <br />0.66 <br />2.36 <br />77.05 <br />2.98 <br />0.01 <br />0.42 <br />77.05 <br />2.98 <br />0.39 <br />1.89 <br />77.05 <br />2.98 <br />0.14 <br />0.01 <br />77.05 <br />2.98 <br />0.15 <br />0.00 <br />77.05 <br />2.98 <br />0.15 <br />0.00 <br />77.05 <br />2.98 <br />0.05 <br />0.24 <br />77.05 <br />2.98 <br />0.15 <br />0.00 <br />77.05 <br />2.98 <br />0.03 <br />0.93 <br />77.05 <br />2.98 <br />1.23 <br />3.22 <br />77.05 <br />2.98 <br />0.04 <br />0.94 <br />77.05 <br />2.98 <br />0.13 <br />0.03 <br />77.05 <br />2.98 <br />Q =runoff (in) <br />P = rainfall (in) <br />S = potential maximum retention atter runoff <br />begins (in) and <br />I, = initial abstraction (in) <br />Q = <br />(P - O s)(e9 2-e) <br />P+0.85 <br />S Is related to the soil and cover conditions of the <br />watershed through the CN. CN has a range of 0 to 100, <br />and S is related to CN by: <br />S =100 -ONO -10 [eq. 24] <br />Hydrologic Soil Group Area of Soil Type (Acres) Percentage of Soil Tvo Site CN <br />ack Tone Clay D 8.64 0.864 7 <br />tockton Clay C 1.36 0.136 7 <br />Weighted Average= 77.05 <br />1. The Open Space (good condition) for Urban Areas as a conservative factor was used for calculations. <br />Evotranspiration AdJsuted Precipitation Average Runoff Rate Available Net Rainfall <br />3.22 <br />2.25 <br />3.31 <br />0.003 <br />r 3.30 <br />1.05- <br />5.27 <br />3.69, <br />0.59 <br />0.002 <br />0.59 <br />0.00 <br />5.98 <br />4.19 <br />2.58 <br />0.002 <br />2.57 <br />0.00 <br />7.99 <br />5.59 <br />0 <br />0.002 <br />0.00 <br />0.00 <br />8.46 <br />5.92 <br />0 <br />0.002 <br />0.00 <br />0.00 <br />7.65 <br />5.36 <br />0 <br />0.003 <br />0.00 <br />0.00 <br />5.52 <br />3.86 <br />0.24 <br />0.003 <br />0.24 <br />0.00 <br />4.12 <br />2.88 <br />0.01 <br />0.003 <br />0.01 <br />0.00 <br />2.18 <br />1.53 <br />0.84 <br />0.004 <br />0.84 <br />0.00 <br />1.05 <br />0.74 <br />4.61 <br />0.005 <br />4.59 <br />3.85 <br />1.22 <br />0.85 <br />1.2 <br />0.001 <br />1.20 <br />0.34 <br />3.07 <br />2.15 <br />0 <br />0.001 <br />0.00 <br />0.00 <br />55.73 <br />39.01 <br />13.38 <br />5.25 <br />1. Referece Eta from DWR/CIMIS for Zone 12, East Side Sacramento -San Joaquin Valley;0.7landscape multiplier. <br />2. httPs:Hcimis.water.ca.gov/App_3hemes/images/etozonemap.jpg <br />Deep Perc. Of Rain( R) ; -, In./yr. Deep percolation of rain water <br />'Western Regional Climate Center <br />https.//wrcc.dri.edu/cgi-bin/cliMAIN.pl?caSO32 <br />CIMIS <br />