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r�� TABLE 2 PERCOLATION TEST RESULTS AND APPLICATION RATE IN GALLONS/FT'-/DAY PERC TEST#1:36"DEEP 35.7 min/inch /0.467 gallons/ftZ/day F= PERC TEST#2:48"DEEP 31.3 min/inch / 0.522 allons/ftZ/da III. GROUNDWATER INFORMATION The water table was measured at 7.3 ft below existing ground surface (bgs) from the exploratory boring completed as referenced above. It is known that groundwater near large bodies of water can be influenced by tidal action. Soil mottling/rust color was not observed near the capillary fringe, consequently, tidal action may not be overly significant in this locale. However, due to increased pumping for urban and agricultural uses, the water table may be expected to decline from its current elevation. The Well Completion Report and Water Analysis Report of the on-site well is found in Appendix F. Nitrate-nitrogen was determined to be non-detect(ND). It is usual to find very low or non-existent concentrations of NO3-N in wells near large bodies of fresh water. Regardless, the groundwater must be protected from potential NO3-N contamination. Iron and manganese were determined to be substantially over the Maximum Contaminant Level (MCL). Consequently, water from the new well will be treated to mitigate these two constituents. IV. NITRATE LOADING STUDY FINDINGS Only 2.9 acres of the 10 acre subject Parcel are to be developed. APN property boundaries are almost always used in nitrate loading calculations because of the definitive status of property line boundaries. However, the developmental limits of this project are clearly detailed, with the remaining 7.1 acres in wetlands or land that is continuously underwater. As referenced, the on-site soil exhibited substantial denitrification(90%) even though some of the soil characteristics are not conducive to nitrification and/or denitrification.• A denitrification factor of 50%will be used in the calculations below. The rainfall recharge factor used in the Hantzsche-Finnemore equation below has been derived from the Water Balance Analysis document,which illustrates the water balance analysis for a Net Rainfall Recharge (NRR or R as referenced below). The data presented in this document indicates an NRR of 8.82" for the Stockton area and is therefore applicable for this project. Page -3- Chesney Engineering, Inc.