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Onsite Permit 555-18-002230-PRMT Page 2 of 3 Schedule Inspections online at www.buildingpermits.oregon.gov or by calling: 1-888-299-2821 or 541-388-6575 When calling for an inspection,use IVR Number:555025723816 x� x Date Issued 4j11/18 Expiration Date 4711/19 Work Description SEs NEW INSt 4 BDRM Special Rgmts: Stake Out Reqd: Yes Groundwater Type:. Temporary Groundwater Depth: N/A Groundwater Interceptor: Yes Groundwater Interceptor Depth: 42 in Groundwater Interceptor Drain Media Amt: 30 in Pump to Drainfield Reqd: Yes Filter Fabric on Top of Drain Media: N/A _ . Rake Trench Sidewalls: N/A Other Special Rqmt: Not specified • Conditions of Approval This property has been approved fora STANDARD SEPTIC SYSTEM in the area identified in Site Evaluation Report 555-18-000511-EVAL. System plans reflect the approved stakeout and are approved as submitted. Refer to approved plans dated February 26,2018. 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 system designed to serve a single family dwelling with a maximum of 4 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 domestic household water use may exceed these flows,it is advisable to increase the size of the treatment system. PRESSURE OPERATED EQUAL DISTRIBUTION IS REQUIRED as part of this installation. TRENCH DEPTHS are 24"minimum/24"maximum and require a pressure-operated hydrosplitter to achieve equal distribution. Lines leading from hydrosplitter to distribution boxes must drain freely,with no sag. 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. The effluent pipe must have 18-gauge minimum green tracer wire or green metallic tape placed along the line. 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 minimuml2 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. •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. • OBSERVE ALL SETBACKS AND SEPARATION DISTANCES as required by the DEQ rules. A copy of the DEQ setback requirements is on file in our office and available online at http://www.oregon.gov/deq/Residential/Pages/Onsite.aspx under Rules:Division 71:Table 1. • 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 average interval. 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 eventually lead to a system failure. • THE APPROVED SEPTIC SYSTEM AREA MUST BE PROTECTEDfromany vehicular traffic,livestock and farming activities. Other activities such as excavating or filling,driveway placement,paving or other similar activities that alter the natural soil conditions will adversely affect the soil and • the septic system function and lead to premature system failure. The area must not be subjected to excessive saturation due to artificial drainage of ground surfaces,driveways,building downspouts or other sources. :The areas of the initial septic system and the future repair system must both be protected. CALL BEFORE YOU DIG...IT'S THE LAW AITEN110N:Oregon law requires you to follow rules adopted by the Oregon Utility Notification Center. Those rules are set forth by Oregon Administration Rules. You may obtain copies of the rules by calling the center.(Note:The telephone number for the Oregon Utility Notification Center is 1-800-332-2344.) 4/11/18:2:18:28PM Page 2 of 3 C:\myReports/reports//production/O1 STANDARD REPO RTS/std_Ons itePerm it_v2_p r.rpt