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Septic Permit 555-24-004269-PRIM-01 Page 2 of 3 0 1h t 02.4 �4" � � � �� ,� WEt Uescriptto xs AIi< t= F 1 &: F e 4i -1B s.l 1C S i, •Properly decommission the old septic tank and submit appropriate documentation. •A failing system must be repaired as soon as possible.Should the repair of this system be delayed,the property owner must notify the agent and provide the reasons for delay,and propose a different completion date.Delays may be cause for formal enforcement action,which may result in civil penalty assessments. •If there are discharges of sewage or septic tank effluent onto the ground surface or into public waters,the property owner must take immediate steps to minimize the threat to public health and the environment.These steps must include at a minimum: •Dry soil installation only(June 1 —October 1 unless otherwise authorized by the agent). •The system must be installed by the property owner or a licensed sewage disposal business(installer). -Vehicular traffic and livestock must be restricted from the system area. •All roof drains must be directed away from the system •All tanks must be tested for watertightness and have a water-tight riser to the ground surface.Twenty-inch minimum diameter if less than 36-in deep.Thirty-inch minimum diameter if greater than 36-in deep. Maintain access to septic tank for pumping and service. -Meet all required setbacks -The system must be installed in the area approved during the site evaluation and in accordance with the construction plan approved by the agent,including any changes made by the agent. -All work is to conform to OAR 340, Division 71 and 73. Make no changes in system location or specifications without approval by the agent. •For product approval information and manufacturer installation requirements see DEQ website at: http://www.oregon.govideq/Residential/Pages/Onsite.aspx •An anti-buoyancy device is required for the septic tank(s)and must be installed as per the manufacturer installation guidelines. -A minimum 18-gauge,green-jacketed tracer wire or green color-coded metallic tape must be placed on top of the effluent sewer or pressure transport pipe from tank to drainfield. -Effluent sewer.The effluent sewer must extend at least 5 feet beyond the septic tank before connecting to the distribution unit. It must be installed with a minimum fall of 4 inches per 100 feet and at least 2 inches of fall from one end of the pipe to the other. In addition,there must be a minimum difference of 8 inches between the invert of the septic tank outlet and either the invert of the header to the distribution pipe of the highest lateral in a serial distribution field or the invert of the header pipe to the distribution pipes of an equal distribution absorption field. -Header pipe from Distribution or Drop Box must be minimum 4-ft length, level,and bedded. -Each drainfield trench must be level within a tolerance of plus or minus 1-inch. -Maximum length of an individual trench is 150-feet. -Serial distribution,each trench bottom to be level and on contour.Use Drop box(es). Groundwater Interceptor,Curtain Drain required:Minimum trench width 12-inches.Minimum perf pipe diameter 4-inches;must meet the requirements in OAR 340-073-0060(4);and must be installed at least 2 inches above the bottom and along the full length of the trench with a minimum of 10 inches of drain media cover The curtain drain must be filled with drain media to within 12 inches of the ground surface with filter fabric placed over the media.The outlet pipe(s)must be rigid smooth-wall,solid PVC pipe meeting or exceeding ASTM Standard D-3034 with a minimum diameter of 4 inches.A flap gate or rodent guard must be installed.The curtain drain must extend at least 6 inches into the layer that limits effective soil depth or to a depth adequate to effectively dewater the site. 9/17/24:12:12:51 PM ONS_OnsiteCSC_pr