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STANDARD, SYST~ ~N~RUCTION DETAIL September 15, 1992 APPLICANT= ELMER CHASE SITE NUMBER: 92-3038 Your site has been found suitable for a STANDARD ON-SITE SEWAGE DISPOSAL SYSTEM. The following construction specifications shall apply to the installa- tion of your septic system. 1- The septic tank shall have a minimum liquid ~apacity of 1000 gallons. 2. The projected daily sewage flow for this project is calculated a~ 450 aallons D~_~. Eased on soil conditions observed on this site, the disposal field will be sized at 1~50 1LD~i {eet Der 15o ~%llo~s of ~ojected daily sewage fl~, A ~l~imum of 450 line~ ~ee~ of dis~sal field will be re~ui=ed for your pro~sed develop- ~nt- The dis~sal tr~n0h~ are cons%ruct~ two (2} feet wide a~d on min~ ten (10) fcc= centers and with ~ line e~oee~i~g 125 feet in length. The trenches and perforated pipe are installed level (~i") a~d ~on~oured to follow the natural ground surface. 3. The dl~sal field shall be constructed with serial distrib~io~ with a minim~ trench depth of ~ and a max~um treuch depth of ~ $~c~s. There must be at lea~ 12.. inches of backfill ove~ the top of the gravel, measured ~rOm the natural ground A groundwater interc~p~o~ is re~ired a~ ~ar= of this system. This inte~cm~or trench mus~ bo constr~cted a minimum twelve (12) inches wide by 42 inches deep with 36 in~he~ of clean gravel placed over a four (4) inch smooth wall ~rforated pipe. The interce~or ~t be located at l%a~t ten (10) f~et upslo~ from the ~is~sal field and mus~ discharge through a wate~ight, non- ~rforated pi~ beside or below the dis~sal field. A separation of 25 f~= iS re~ired f=om =he s~ptic ta~R if =he tank is located upslo~ of the groundwa- ter interceptor. This approval is site specific to the area tested an~ ~h~ ~eptic ~ystem must be l~ca%ed in the i~edlate area of ~he test pits unles~ othe~wise autho- rized by this office. A new site evaluation may be re~ired if the system is proceed for a different area on the ~ope~y- SPECIAL CONDITIONS: The proposed house eXCavation a~d fOOting drains m~st not conflict with the minimum setback/separation distance from the existing upslope drain£1eld and drainfield replacement sites. Refe~ to the enclosed setback list which outlines minimum sepa=ation distanee~ between components of septic systems and other features, existing and proposed. Note especially the setback f~o~ the downslo~ road cut and ditch- The well might need te be relocated from the cu~n~ proposed site.