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Nitrate Loading Analysis BSK Job E21-002-01B <br />2482 Carpenter Road July 13, 2021 <br />Stockton, California P a g e | 6 <br /> <br /> <br />4.5 Mass Balance of Nitrogen Loading Using Hantzsche and Finnemore Calculation: <br /> <br />A nitrate loading analysis was prepared using a simplified prediction of Ground-Water Nitrate build up <br />from Hantzsche and Finnemore, 1992. The nitrate loading equation is: <br /> <br />π‘›π‘Ÿ= 𝐼𝑛𝑀(1βˆ’β…†)+𝑅𝑛𝑏 <br />(𝐼+𝑅) , <br />where: <br /> <br />nr Average concentration of nitrate-nitrogen in recharge water <br />I Volume Rate of Wastewater entering the soil averaged over gross developed area in <br />inches/year <br />nw Total nitrogen concentration of wastewater in milligrams per liter <br />d Fraction of nitrate-nitrogen loss due to denitrification in the soil (unitless ratio) <br />R Average recharge rate of rainfall in inches per year <br />nb Background nitrate-nitrogen concentration of rainfall recharge at the water table <br /> <br />Table 1 presents the estimated input values and assumptions used in the analysis. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />