8598309 - Laserfiche WebLink

Home Browse Search

Septic Authorization 555-18-004136-AUTH Page 2 of 3 .° 4"4bm � " '"�R°` '. A,Yom,`*,,41 .,n , � "CV'-� a` s -&� -fs, , k z��a�" '1= � 10-4- cr1pf t t t�ti 4 13i4QIPM T{ A Bp �� .0441 r3a�:.: ✓ .� � � 3 x ,4,3'� �<.�+',;+ � ,�'� ��' . : ,A,v,,.,,-W,�. o.,�,., .. ... ,. ....�," ..< ... 5 `..m� ,„�i. '4,. Conditions of Approval: Existing system information: The Marion County Public Works Department has records from 1988 showing a standard system with 450 lineal feet. The system was installed under permit number 8536 and has a Certificate of Satisfactory Completion. The system was serving a two bedroom dwelling and was designed for 450 gallons per day. A tank was replaced on July 13,2018 after an evaluation showed the existing 1000 gallon tank to be failing. The tank passed inspection and the drainfield appeared to be free of failure during the field visit. Flow increase information: The system was designed to serve a dwelling with up to four bedrooms and a maximum sewage flow of up to 450 gallons per day. The application is to connect a 1-bedroom addition to this system. This change of use will result in an addition of 75 gallons per day and can be approved under Oregon Administrative Rule(OAR)340-071-0205(4). Please see the signed approved site plans dated April 22,2019. DRAINFIELD: Existing. EFFLUENT SEWER:The effluent sewer is the pipe from the septic tank to the distribution box. The material required is 3034 or Schedule 40 pipe with 18-gauge minimum green tracer wire or green metallic tape placed along the pipe. The effluent sewer ' shall extend at least five(5)feet from the tank. There must be a minimum difference of eight(8)inches between the invert(flow line)of the septic tank outlet and the invert of the distribution or drop box outlet In Equal Distribution,there must be six(6) inches of fall between the septic tank outlet and the distribution box inlet. In Serial Distribution,there must be two(2)inches of fall between the septic tank outlet and the drop box inlet. OBSERVE ALL SETBACKS AND SEPARATION DISTANCES: As required by the DEQ rules. The well placement is especially critical and must be located at least 50-feet from the septic tank. A minimum 5-foot setback is required from the septic tank to a foundation of a building or other structure. A copy of the DEQ setback requirements is enclosed. THE APPROVED SEPTIC SYSTEM AREA MUST BE PROTECTED from any vehicular traffic, livestock and farming activities. Other activities such as logging,excavating or filling,driveway placement or any similar activities may also damage the soil in the area and adversely affect the septic system approval. The areas of the initial septic system and the future repair system must both be protected. The septic tank should be pumped and inspected by a licensed septic tank pumping service approximately every five(5) years. The septic tank is a reservoir for the solid materials in the sewage waste stream. Excessive accumulation of these solid materials in the septic tank will cause the solids to wash out of the tank and into the DRAINFIELD. This will cause irreversible damage to the DRAINFIELD and will lead to premature system failure. THIS SYSTEM MUST BE INSPECTED AND APPROVED PRIOR TO BACKFILL. When work is complete and ready for inspection, request an inspection by following the instructions on the accompanying permit document A twenty four hour water test is required on all septic tank installation.You may leave a message for the inspector if desired. Be sure the System Record form with the As-Built drawing is on the job or in our office when the inspection is requested. An inspection should be completed within seven(7)days. 4/23/19:2:20:18PM Page 2 of 3 ONS_OnsiteAuthorizationpr