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Onsite Permit 555-19-000660-PRMT Page 4 of 6 Schedule Inspections online at www.buildingpermits.oregon.gov or by calling: 1-888-299-2821 or 503-588-5147 When calling for an inspection, use IVR Number:555002848966 Datesued 2 1111a � Expirationdath 2t1I20 V1forlc t, (diti) S Arg 3 BDR1 SFC} Conditions of approval Approved Area&System Type: This property has been approved for a STANDARD SEPTIC SYSTEM in the area identified in Site Evaluation Report 555-19-000349. System plans reflect the approved stakeout and are approved as submitted. Refer to approved plans dated January 31,2019. Any deviation from the approved plans must be authorized by this office prior to installation or the permit may be voided. It's the responsibility of applicant/installer to coordinate these requirements with all others in OAR 340-071-0220. This permit is for a single family dwelling designed to serve a residence with up to four bedrooms. Peak sewage flow into the system is limited to a maximum of 450 gallons per day,with an average sewage flow of not more than 225 gallons per day. Premature failure of the treatment system may occur if either of these flow quantities is exceeded. If,for some reason,you expect your water use may exceed these flows, it is advisable to increase the size of the treatment system. Specific Requirements: DRY SOIL CONDITIONS ARE REQUIRED FOR INSTALLATION(March 1—October 31)The geographical area in which the property lies is considered a risk to installation during winter months. Soil moisture conditions generally preclude construction of the drainfield in the winter months. AN EFFLUENT LIFT PUMP WILL BE REQUIRED to install the septic system disposal field in the approved area and at the required depth. Detailed instructions for dosing tank/effluent pump installations are available in our office. The electrical wiring to the pump and alarm must be installed in accordance with the appropriate Electrical Code. The electrical work must be done under a Marion County Electrical Permit and must be inspected and approved by a Marion County Electrical Inspector. The work must be left uncovered and accessible for inspection. The electrical inspection includes the connections to the pump and alarm in the dosing tank,the wiring in the trench and the connections in the structure. A CURTAIN DRAIN(GROUNDWATER INTERCEPTOR)IS REQUIRED as part of this system to divert groundwater from the drainfield. The curtain drain trench must be constructed a minimum 12 inches wide by 42 inches deep with 30 inches of clean gravel placed over a 4 inch perforated pipe(ASTM Specification F 405, D 2729 or F 810). Gravel must be placed a minimum of 2 inches under the pipe. The gravel must be covered with filter fabric. Outlet pipe must be rigid,smooth-wall,solid PVC pipe meeting or exceeding ASTM Standard D-3034. The outlet must be fitted with a flap gate or rodent guard. The curtain drain must be located at least 10 feet up slope from the disposal field and must discharge through a watertight non-perforated pipe beside or below the disposal field. A minimum separation of 10 feet is required from the septic tank if the tank is located up slope of the curtain drain and 5 feet if the tank is located down slope of the curtain drain. HEADER PIPE between Distribution Box and drainfield trench must measure a minimum of 4 feet, must be installed level,and bedded on undisturbed earth. TANK RISER: The tank must be installed with watertight risers extending to the ground surface or above. The riser lid must be gasketed and securely fastened. OBSERVE ALL SETBACKS AND SEPARATION DISTANCES as required by the DEQ rules. A copy of the DEQ setback requirements is available in our office and online at http://www.oregon.gov/deq/Residential/Pages/Onsite-Resources.aspx and scroll to Table 1,"Minimum Separation Distances." MAINTAIN PERMANENT ACCESS to septic tank for pumping and service.The septic tank should be pumped and inspected by a licensed septic tank pumping service before sludge and scum accumulations reach 30%of the tank liquid operating volume. Pumping every 3 to 5 years is an 2/1/19:9:38:48AM Page 4 of 6 ONS_OnsitePermit_pr