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AUBREY.MOORE, JR 9-13-01 Page 2 The ground storage tank would provide adequate dedicated fireflow volume, per the focal fire suppression district, and domestic supply working volume. About 40,000 gallons can be anticipated as dedicated fire storage, with about 10,000 gallons used for the domestic supply working volume. In this case, a 50,000 gallons storage tank would be needed. I The design numbers used in this report are preliminary, and are for to be used for planning discussions only. Area requirement. The anticipated water features; including the well, storage tank, booster pumps, hydropneumatic tank, would require about a 7,500 square foot area. WASTEWATER SYSTEM i Description. The proposed onsite domestic wastewater system would consist of: 1. gravity collection, as possible; 2. snjall diameter force main collection, as may be necessary; 3. septic tankage with effluent filters for primary treatment; 4. further treatment after the septic tankage, such as a recirculating sand filter, or proprietay advanced treatment unit (ATU); and 5. shallow pressure dosed or drip irrigation subsurface disposal. The ability of the soil and site conditions to absorb and dispose of the treated effluent will determine the degree of treatment needed and the type of disposal system configuration needed. A soil profile field investigation is recommended to determine the disposal capacity of the soil. Wastewater design flow is typically 150 gallons per day per bedroom. With this, the preliminaFy wastewater design flow for the 400 bedrooms is 60,000 gallons per day. Area requirement. If drip `micro-dosed' disposal is allowed by the _County and Regional Water Quality Control Board, at least a 200 foot by 300 foot drip disposal area (60,000 square feet) would be needed. If shallow pressure dosed disposal is required, then a larger disposal area could be needed. A 100% reserve area may be required which would double the area requirement. i