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July 31, 1992 APPLICANT: SITE NUMBER: STANDARD SYSTEM CONSTRUCTION DETAIL SHEET EILLIGO$S HOMES 92-2535 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. The septic tank shall have a minimum liquid capacity of 1500 gallons. The projected daily sewage flow for this project is calculated at 525 ~allons Der day. Based on soil conditions observed on this site, the disposal field will be sized at 150 lineal feet Der 150 qallons of projected daily sewage flow. A minimum of ~25 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 shall be constructed with serial distribution with a minimum trench depth of 24 inches and a maximum trench depth of 24 inches. There must be at least 12 inch~ Of backfill over the top of the gravel, measured from the natural ground surface. A groundwater interceptor is required as part of this system. This interceptor trench must be constructed a minimum twelve (12) inches wide by 40 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 to the area tested and the septic system must be located in the immediate area of the test pits unless otherwise authorized by this office. A new site evaluation may be required if the system is proposed for a different area on the property. SPECIAL CONDITIONS~ Construct the drainfields as far upslepe as possible within the immedi- ate area of the soil test pits. Allow space for the upslope curtain drain. Refer to the enclosed setback list which outlines minimum separation distances between components of septic systems and other features, existing and proposed. Soil conditions are marginal for the construction of the standard system, so the construction should be limited to the dry soil summer season. THIS IS NOT A PERMIT TO INSTALL TEE SEPTIC SYSTEM. DO NOT INSTALL THE SYSTEM UNTIL A VALID PERMIT HAS BEEN ISSUED BY THIS OFFICE.