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PP~ESSURIZED DISTRIBUTION SYSTEM CONSTRUCTION DETAIL SHEET November 30, 1992 APPLICANT: SITS NUMBER= ALTERNATIVE shall apply KENNETH ALLEN 92-3802 ORIGINAL SYSTEM site has been found suitable for a PRESSURIZED DISTRIBUTION SEWAGE DISPOSAL SYSTEM. The following construction specifications to the installation of your septic system. The septic tank shall have a minimum liquid capacity of gallons. The projected daily sewage flew for this project is calculated at 450 qallons pe~. day. Based on soil conditions observed on this site, the disposal field will be sized at 75 lineal f.eet per 1~0 ~allons of projected daily sewage flow. A minimum of 225 lineal feet of disposal field will be required for your proposed develop- ment. The disposal trenches are constructed two (2) feet wide and on minimum ten (10) foot centers and with no line exceeding 125 feet in length. The trenches and perforated pipe are installed level (±1") and contoured to follow the natural ground surface. The disposal field piping is minimum two (2) inch pressure piping, with a minimum 160 psi rating. The sidewalls of the disposal trenches and top of the filter material shall be lined with filter fabric. The disposal field shall be constructed with pressurized equal distribution with a minimum trench depth of 18 inches and a maximum trench depth of 18 inches. There must be at least 6 inches of backfill ewer the top of the gravel, measured from the natural ground surface, An effluent lift pump or siphon which is sized to provide a minimum residual head of five (5) feet at the most distant orifice is required This approval is site specific to the area tested and the septic system must be located in the immediate area of the test pits unless otherwise autho- rized by this office. A new sit~ evaluation may be required if the system is proposed for a dkfferent a~ea on the property. SPECIAL CONDITIONS: This system must only be constructed on the highest ground within the immediate area of the southeasterly test pit. The alternative sand filter system must be constructed within the immediate area of the other two new test pits. Observe all normal setback/separation distances. Refer to the enclosed setback list which outlines minimum setbacks between septic systems and other features. A pre-constructioa field stakeout is recommended prior to any construction and excavation. I eugqest that the well construction be deferred until the location of th~ individual drainfield lines have been confirmed and approved by our department. THIS Is NOT A PERMIT TO INST.?3. THE SEPTIC SYSTEM. DO NOT INSTALL THE SYSTEM UNTIL A VALID PERMIT ~AS BEEN ISSUED EY THIS OFFICE.