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..Agkoz,..,z. Marion Count>tj OREGON SEPTIC SYSTEM REQUIREMENTS AND FIELD NOTES <br /> PUBLIC WORKS <br /> Design Flow ' GPD <br /> 375 <br /> Initial System Repair System <br /> System Type: System Type: <br /> ATT treatment standard 1 'with a bottomless sf <br /> Field Size: FtA2 Field Size: Ft^2 <br /> 250 ft^2 bottomless sandfilter after ATT <br /> Size Factor: Ft^2/150 GPD . Size Factor: Ft"2/150 GPD . <br /> Install Depth (inches) . . Install Depth (inches) <br /> Min 9 Max 9 Min Max <br /> Special Requirements <br /> install sand filter 9 inches into soils profile allowing for a 24 inch seperation from water table,bring up native fill to surround sand filter <br /> for support, provide 0 and M contract . <br /> Notes & Landscape Features <br /> reasonable repair . <br />