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Minimum Separation Distances fo~ Disposal System Components <br /> <br />Itens Requiring Setback <br /> <br />Sewage Disposal <br /> Area, Including <br />Replacement Area <br /> <br />From Septic Tank and <br />Other Trea~nent Units, <br /> Effluent Sewer and <br />Distribution UniLs <br /> <br />Groundwater Supplies (wells, including <br />temporarily abandoned wells) <br /> <br />100' <br /> <br />Springs: <br />--upgradient <br />--downgradient <br /> <br />Surface Public Waters (creeks, ponds, lakes <br />rivers, etc.) setback to be measured from <br />bank dropoff or mead yearly high water <br />mark, whichever provides the greatest setback, <br /> <br /> 50' <br />100' <br /> <br />100' <br /> <br />Intermittent Streams: <br />--Piped (watertight not less than 25' <br /> any part of the on-site system) <br />--Unpiped <br /> <br />from <br /> <br />Groundwater Interceptors, including footing <br />drains, agricultural drain tile, and ditches <br />On a slope of 3% or less <br />On a slope greater than 3% <br /> --Upgradient <br /> -~Downgradient <br /> <br />20' <br /> <br />50' <br /> <br />20' <br /> <br />lO' <br />50' <br /> <br />Irrigation Canals: <br /> Lined (watertight canal) <br /> Unl i ned <br /> ~-Upgradient <br /> --Downg rad i eot <br /> <br />Manmade Cuts in Excess of 30 Inches <br />(Top of Downslope Cut): <br />--Which Intersect Layers that Limit <br /> Effective Soil Depth Within 48 <br /> Inches of Surface <br />-~Which Do not Intersect Layers That <br /> Limit Effective Soil Depth <br /> <br />Escarpments (Naturally occurring slopes over <br />50 percent and greater than six feet in height) <br />--Which Intersect Layers that Limit <br /> Effective Soil Depth <br />~-Which Do Not Intersect Layers <br /> That Limit Effectively Soil Depth <br /> <br />Property Lines <br /> <br />Water Lines <br /> <br />Foundation Lines of any Building <br />including Garages and Out Buildings <br /> <br />25' <br /> <br />25' <br />50' <br /> <br />50' <br /> <br />50' <br /> <br />25' <br /> <br />10' <br /> <br />10' <br /> <br />*This does not prevent stream crossings of pressure effluent sewers. <br /> <br />50' <br /> <br />50' <br />50' <br /> <br />50' <br /> <br />20' <br /> <br />50' <br /> <br />20' <br /> <br />10' <br />25' <br /> <br />25' <br /> <br />25' <br />50~ <br /> <br />25' <br /> <br />10' <br /> <br />lO' <br /> <br />lO <br /> <br />10 <br /> <br />10 <br /> <br /> <br />