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. ,, Marion County <br /> OREGON SEPTIC SYSTEM REQUIREMENTS AND FIELFElyElp Rr D <br /> PUBLIC WORKS lams <br /> Design Flow GPD <br /> 300 <br /> Initial System Repair System <br /> System Type: System Type: <br /> Pressurized - Seepage Bed <br /> Field Size: Ft^2 Field Size: LF <br /> 400 <br /> Size Factor: Ft^2/150 GPD Size Factor: LF/150 GPD <br /> 200 <br /> Install Depth (inches) Install Depth (inches) <br /> Min 18 Max 30 Min Max <br /> Special Requirements <br /> Reasonable Repair under provisions given in OAR 340-071-0215 and Oregon House Bill 2289 <br /> Stakeout required, backfill to seepage bed must be imported or site material with cobbles taken out. <br /> Notes & Landscape Features <br /> Pit was previously evaluated but approved area was determined to be the building area for the home <br /> This is a re-evaluation. <br /> The soil evaluated is cobbly, and has the potential to damage the drainfield during backfill; <br /> the seepage bed must be backfilled with a soil texture Sandy Loam or Loamy Sand without cobbles <br /> in it. This can either be imported or used from elsewhere on the site. The material must be verified <br /> by the agent prior to placement. <br /> A detailed stakeout of the system area is required, a 25 foot setback to any area with greater than <br /> 50 percent slope must be met. Setback to the river must be as great as possible, <br /> but no less than 50 feet. <br />