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October 17, 1994 APPLICANT~ SITE NUMBER= David GillmOr 94-0~S90 your site has been found Suitable for a TILE D~WAT~R~G ~LTEB/~ATIVE SEWAGE DIS~0~AL SYSTEM. The follOwing coes~ructlon s~cifications shall apply The septic tank sha~l have a minimum liquid capacity of 1000 gallons. The projected daily sewage flow for this project is calculated at ,~LS,0, ~a!199s Der ~a¥, Ea~ed on soil conditions observed on thin site, ~he disposal field will be ~ized at ~0 lineal ~ of projected daily sewage flow, A minimum of ~5.~ lineal f_~eet of disposal fie~d will be required for you= proposed develop- ~nt. The di~sal trenches ~e constr~¢ted two {2) feet wide an~ on minimum ten (10) foot center~ and with no %ina exceeding feet in length. 9he trenches and perforated pipe are installed level (~l") and contoured to follow the natural ground surface. 3. The disposal field ohall be construo=ed with e ua diet ibuti with a minimum trench depth of ~ and a ~axi~um trench depth of 2.2 inches. ~here must be at least 6 .~Dche~ of backfill over the toD of ~he grav~l, measured from the nat,=al ground 4. Fiela collection t%le shall be rigid, smooth walled perforated pipe with a four (4) inch mini~aum diameter. The =ils ~hall b~ installed with a minimum ~epth of thirty-six (36) inches and with a uniform gnade of 0.2 to 0.4 feet pen 100 feet. Max&mum tile spaein~ shall b~ 70 feet, center ko center, with a ~inimum 20 foot setback from the disposal trenches, The collection tile shall be enveloped in clean f~lter materiel (~rain rock) to within twelve (12) inches of the ground surface. The filter material shall be covered with lilts: fabrio, treate~ building paper er other non- degradable material. A silt trap with a minimum die,aster of inches shall be installe~ between the collection system and the outlet pipe. The trap zhall have a 12 inch sump below the invert of the outlet. The outlet pipe shall be smooth walled ~olid pipe with a minimum fou~ (4} inch diameter. That DeNrich of the outlet which daylights shall be eenstz~l¢ted of a heavier pipe (Sch. 40 bette~) with a flap gate or screen to exclude rodents. The outfa~l shall be set to avoid back~l~w in%e the piPe. This approval is site specific to the area tested and the Septi¢ system must be located in the immediate area of the test pits unless otherwise autho- rized by this office. A new site eval:ation may be required if the system is proposed for a different area on the property. SPECIAL CONDITIONS: An easement will be required for the outfall pipe of the tile dewa~ering system. 9he easement must be submibted prior to issuance Of any permit for the installation of the septic syste~. ~I~ I$NOT A pERMIJ~ T~..INST~LL T~E WEP~I~$Ys~M. DO NOT INS~TALL ~J~E SYSTEM