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August 31, 1992. APPLICANT: HAROLD M. SMITH SITE NU~EER= 92-2999 ORIGIN;~L SYSTE~ Your site has been found suitable for a STAND~D ON-SITE SEWAGE DISPOSAL SYSTF. M. The following ~onstruction specifications shall apply to the instaXla- tion of your Beptic 1. The septic tank shall have a minimum liquid capacity of gallons. 2. The projected daily sewage flow for this project is calculated at 450 qa~on~ ~er day. Based on soil conditions obse~ed on this ei~e, =he disposal field will be sized at .150 lineal f..~9~.....2ppr ~llon~ Of projected daily sewage flow. A minimum of ~eet of disposal field will be required for your propose~d~velop- ment. The disposal trenches are constructed two (2) feet wide and on minimum ten (10) foot centers and with no line exceeding feet in length. The trenches and perforated pipe are installed level (±1") and contoured to follow the natural ground surface. 3. The disposal field shall be constructed with serial distribution with a minimum trench depth of.~4 inches and a maximum trench depth of'~. There must be a~ leas~ 12~che~ of backfill over th~ to~ of the gravel~ ~eae~red from the ~atural ground A groundwater interceptor is required as part of this system. This interceptor trench must be constructed a minimum twelve (12) inches wide by 36 inches deep with 30 inches of clean gravel placed over a four (4) inch smooth wall perforated pipe. The interceptor must be located at least ten (10) feet upslope from the disposal field and must discharge through a watertight, non- perforated pipe beside or below the disposal field. A separation of 25 feet is required from the septic tank if the tank is located upslope of the groundwa- ter interceptor. This approval is site specific =o ~he 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 site evaluation may be required if the system is proposed for a different area on the property. SPECIAL CONDITIONS: This standard system must be constructed within the immediate area and up slope of the uppe~ (northerly) soil test pit. Soil conditions are marginal, so summer season construction is re¢o~end~d. There is a moderate rock hazard associated with drainfield construction. Rock larger than six inches must be removed from backfill material. Refer to the enclosed setback list which outlines minim~ separation distances between components of septic systems and other features. T~IS IS N~ A PERMIT TO !~STaLL TH~ SEPTIC SYSTEM. DO NOT /NET.~!. ~E SYSTEM UNTIL A ,F~LiD PE~%MIT HAS BE~,S,S~D EY~IS OFFICE.