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April 17, 1994 APPL~C~T: $ITB NUMBER: LAB~Y K~UDELL 94-1575, P/LRTITI~N, 3 OF 6 ACRES. NORT~ PO T/L 200 You~ site has been found suitable £er a STANDARD ON-SITE SEWAGB DISPOSAL SYSTEM. The following constructio~ specifications shall apply to the installa- 1. The septic tank shall have a minimum liquid capacity of 1000 2. The projected daily sewage flow for this project is calculated at 450~allons per day. Based on sell conditions observed on this ~te, the disposal field will be si~ed at 150 lineal feet Der 15O ~%len~ of ~=o~ected dally sewage flow. A minimum of 4~0 lineal feet of disposal fleld wLll be r~qulred for your proposed develop- ~ent. The disposal trenches are constructed two (2) feet wide and on minimum ten (10) foot centers and with no line exceeding 125 feet i~ length. The trenches and perforated pipe are installed level (~") and contoured to follow the natural ground surface. 3. The dis~osal field shall be constructed with serial dis~ributlo.~ with a minimum trench depth of ~ and a maximum trench depth of ~4 inches. There must be at least ~hes of backfill Over the top of the gravel~ ~easured from the natural ground A groundwater interceptor is required as part of this system. Thi~ interceptor t~en~h ~ust be constructed a ~i~imum twelve (12} i~che~ wide by 42 inches deep with 36 inches of clean gravel placed over a £our (4) inch smooth wall perforated pipe. The int~rceptor must be located at least ten (10) fee~ upslope from the disposal field a~d must discharge through a watertight, non- perforated pipe beside or below t~e disposal field. A se~aration of 25 feet is required from the septic tank if the tank is located upslope of the groundwa- ter interceptor. An effluent lift pump may be ~ecessary to construc~ the disposal field ia the approved area and at the correct depth. This approval is site Specific to the area tested ~nd the septic system must be located in the ia=aedlate urea of the test ~its unless otherwis~ autho- rized by this office. A new site evaluation may be required if the system is propes~d for a different area on the property. SPECIAL CONDITION$~ Construct the drainfiel~s within the immediate area of the te~ pits and no farther downslope. Avoid the COnCave landform. A pre-~rmit field stakeout will be ~eo~ssary ~e establish =he locatlon and elevations of the individual drainfield lines for both ~ystem- RefeN to the stakeout pTocedure and the setback %is~ for d~talls to uompl~e the st&k~ou~. NOte, especially the separation distance between the septic tank and curtain drain depending upon whether the tank is above or below the curtain drain. Siting wells should be deferred pending the stakeout review. Soil conditions are mar~inaI fo~ ~ta~dard ~yetem construction so use care not alter the natural ~opsoil prior to drainfield installation.