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SOUTHWINDS CHURCH <br /> SEWER CONCEPT CALCULATIONS <br /> PHASE ONE: <br /> UTILIZE CONVENTIONAL SEPTIC TANK WITH MOUNDED <br /> LEACH FIELD <br /> 550 SEATS AT 5 GPD = 2,750 GPD <br /> SEPTIC TANK SIZE = BTC + AFD = 1,200 + 2,750 = 3,950 <br /> LEACH LINE REQUIRED = 3,950 GPD x 0.25(SOIL FACTOR) <br /> = 987.5 FEET <br /> USE 1,000 FEET OF MOUNDED LEACH SYSTEM <br /> PHASE TWO: <br /> INSTALL ULTIMATE SYSTEM UTILIZING TREATMENT PLANT <br /> AND SPRINKLER SYSTEM TO DISPOSE OF THE TREATED <br /> EFFLUENT. THE ORIGINAL MOUNDED LEACHFIELD WOULD <br /> BE UTILIZED IN THE WET WINTER MONTHS AND WOULD BE <br /> ALLOWED TO REST IN THE DRY SUMMER MONTHS. <br /> 2000 SEATS AT 5 GPD = 10,000 GPD <br /> EXISTING SEPTIC TANK TO BE INCORPORATED INTO <br /> TREATMENT PLANT DESIGN <br /> TREATMENT PLANT DESIGNED TO HANDLE 10.000 GPD <br /> STORAGE TANK TO HANDLE 20,000 GALLONS - EFFLUENT <br /> WILL BE DOSED A INTO LANDSCAPE IRRIGATION SYSTEM <br /> DURING DRY WEATHER AND EXISTING LEACH FIELD DURING <br /> WET MONTHS <br /> DISCHARGE SYSTEM TO BE DESIGNED TO EVENLY DOSE <br /> THE EFFLUENT OVER A SEVEN DAY PERIOD REQUIRED <br /> CAPACITY OF DISPOSAL FIELD: <br /> 20,000 GALLONS / 7 DAYS = 2,857 GPD <br /> 2,857 GPD < 3,950 GPD THEREFORE THE ORIGINAL <br /> LEACH FIELD WILL ACCOMMODATE THE METERED <br /> FLOW <br />