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rFAsferenced above, it was anticipated that groundwater would have been encountered in the <br /> oe test pits and a sample retrieved. However,this was not the case. Additionally, the <br /> stic or public well that will serve this facility has not been drilled yet and there was no other <br /> well on the subject property to sample and analyze. <br /> F. SURFACE WATER INFORMATION <br /> There are three bodies of surface water that have the potential to be impacted by septic effluent. <br /> These are the Ski Lake - to the east of the proposed leachfield, a wetlands drainage course - west <br /> of the leachfield area, and the San Joaquin River to the north. There will be no storm3yat�x <br /> retention onds. As discussed below, the leachfield area will be orientated to be in compliance <br /> with the distance requirements as promulgated by the PHS-EHD Sewage Standards. Therefore, <br /> each body of surface water referenced above should not be affected by septic effluent. <br /> A sample of San Joaquin River water was taken from the "downstream bank" of the proposed <br /> facility and tested for nitrate and Total Dissolved Solids (TDS). Test results reveal a river water <br /> nitrate concentration of 10 ppm (as nitrate) and a TD concentration of 532 ppm. <br /> III. NITRATE LOADING STUDY RESULTS <br /> A. SEPTIC SYSTEM COMPONENTS <br /> The design of the future septic system for the facility is based upon the factors of proper <br /> operation, longevity, and environmental protection. The San Joaquin County Environmental <br /> Health Department will ultimately stipulate design requirements for the proper operation of the <br /> septic system and for environmental protection. <br /> The proposed Ski Shop will have a final floor elevation higher (approximately 12 ft) than the <br /> current grade elevation. Consequently, the septic tank and leachfield must be designed to <br /> accommodate for this elevational change. A schematic illustrates that the leachfield must be <br /> oriented to accommodate the above referenced distance requirements. <br /> SEPTIC TANKS/GREASE TRAPS <br /> From the calculations illustrated below, it is anticipated that the wastes originating from the Ski <br /> Shop will flow into two - 2,000 gallon septic tanks, with the effluent to be distributed through <br /> leachlines. There wx e a vaulted privy" installed according to Section 9 of the Sewage <br /> Standards for wastes originating from the "Sand Beach" area. <br /> 5 <br /> valley?[g Re-Search <br />