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Marion County%Wci OREGON SEPTIC SYSTEM REQUIREMENTS AND FIELD NOTES <br /> PUBLIC WORKS <br /> Design Flow 450 GPD <br /> Initial System Repair System <br /> System Type:Standard Serial System Type: <br /> Field Size: 220 LF Field Size: FTA2 <br /> Size Factor: Size Factor: <br /> LF / 150 gal. LF / 150 gal. <br /> Install Depth (inches) Install Depth (inches) <br /> Min 24 Max 36 Min Max <br /> Special Requirements <br /> Replacing existing drainlines found to be underneath existing barn <br /> If using chamber-style drainfield, chicken wire is required on trench bottom. <br /> Notes & Landscape Features <br /> This soils evaluation is in response to a minor alteration permit filed for installing a septic tank for <br /> a residential shop. During the permitting process, it was found that two of the originally permitted <br /> drainlines were underneath a barn, built in the early 1980s. This soils evaluation and subsequent <br /> permit is to install an equal amount of drainfield to what was covered by the barn. <br />