SU0009799 SSNL - Laserfiche WebLink

Home Browse Search

' 05 November 2014 AGE Project No. 14-3119 Page 15 of 17 ' Nb = Background nitrate-nitrogen concentration of rainfall recharge, from wastewater influences. ' RESIDENTIAL CALCULATIONS: Nr = I x Nw (1-d)+ R x Nb = (I+R) ' Assumptions: I = 131,400 gallons = 17,566 "cubic feet wastewater - [(2.68 acres x 43,560 feet2) = 12 inches] = 0.0125 inches/year i, . NW= 34.425 mg/L-N ' d = 20 percent denitrification h i R = 13 inches/year tNb = 0.1 milligram per liter Nr = [0.0125 inches/year x 34.425 mg/L-N (1-0.20)] + (13 inches/year x 0.1 milligram per liter) + (0.0125 inches/year + 13 inches/year) - Nr = 1.64 + 13.0125 = 0.126 Nr = 0.126 ppm nitrogen(NO3_N)� COMMUNITY CHURCH CALCULATIONS: ' 4-Laboratory/Restroom Mass Loading - Assumptions: I = 52,122 gallons = 6,968 bic feet wastewater = [(2.68 acres x 43,560 feetZ) = 12 inches] = 0.716 inches/year (� NW = 45.25 mg/L-N d = 20 percent denitrification R = 13 inches/year ' Nb = 0.1 milligram per liter Nr = [0.716 inches/year x 45.25 mg/L-N (1-0.20)] + (13 inches/year x 0.1 milligram per ' liter) - (0.7,,16 inches/year + 13 inches/year) Nr = 196 = 13.716 = 1.44 Nr = 1.44 ppm nitrogen (NO3 N) 1 coq ' of Restaurant/Kitchen Mass Loading - Assumptions: I = 102,960 gallons = 13,764 cubic feet wastewater = [(2.68 acres x 43,560 feet2) = 12 ' inches] = 1.41 inches/year NW = 34.425 mg/L-N d = 20 percent denitrification ' R = 13 inches/year Nb = 0.1 milligram per liter ' Nr = [1.41 inches/year x 34.425 mg/L-N (1-0.20)] + (13 inches/year x 0.1 milligram per liter) _ (1.41 inches/year +,13 inches/year) Nr = 40.13 + 14.41 = 2.78 Nr = 2.78 ppm nitrogen (NO3_N) 2 ' 1 2�, Advanced GeoEnvironmcntal,Inc.