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Marsh 3, 1994 APPLICANT~ SITE NUMBER: STANDARD SYSTEM CONSTRUCTIO~ DETAIL SHEET ORIGINAL SYSTEM KEVIN HILLS 94-823. LOT 2, BLK 2, MkKEY CP~EEK ADDITION Your site has been found suitable for a STANDARD ON-SIT~ 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 1000 gallons. The projected daily sewage flow for this project is calculated at 450 qallons per day. Based on soil conditions observed on this site, the disposal field will be sized at 75 lineal feet per 150 qallons of projected daily sewage flow. A minimum of 225 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 (fl") 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 36 inches. There must be at least 12 inches of backfill over the top of the gravel, measured from the natural ground surface. 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 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: The initial standard drainfield must be installed as far upslope as possible to allow space for the replacement sand filter drainfield to meet the twenty-five feet minimum setback from the downslope cutbanks and ditches. A pre-construction field stakeout is recommended to establish the locations and elevations of the individual drainfield lines for both systems. Refer to the enclosed stakeout procedure and the setback list for details to complete the stakeout. Avoid old roadways and excavations where the topsoil has been altered by grading and compaction. THIS IS NOT A PERMIT TO INSTALL THE SEPTIC SYSTEM. DO NOT INSTALL THE SYSTEM UNTIL A VALID PERMIT ~AS BEEN ISSL~ED BY THIS OFFICE.