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..,, Marion County <br /> OREGON SEPTIC SYSTEM REQUIREMENTS AND FIELD NOTES <br /> 111 PUBLIC WORKS <br /> Design Flow GPD <br /> 450 <br /> • <br /> Initial System Repair System <br /> System Type: System Type: <br /> Pressurized Distribution - Seepage Bed Pressurized Distribution - Pressure Lines <br /> Field Size: FtA2 Field Size: LF <br /> 600 150 <br /> Size Factor: FtA2/150 GPD Size Factor: LF/150 GPD <br /> 200 50 <br /> Install Depth (inches) Install Depth (inches) <br /> Min 18 Max 24 Min 18 Max 24 <br /> Special Requirements <br /> APPLICANT MAY CHOOSE EITHER SEEPAGE BED SYSTEM OR PRESSURE LINES. <br /> Backfill Test pit, do not install system in this area. Pit is large and has disturbed soil in this area. Reserve for future repair. <br /> Notes & Landscape Features <br /> The approved area is entirely within a small fruit tree orchard, the roots from the <br /> trees surrounding may damage the drainfield, especially pressurized distribution. <br /> Due to the nature of low pressure systems, they are especially susceptible to root damage <br /> the trees in this area must be cut down and their stumps removed to prevent root damage <br /> and premature system failure. <br />