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Items Requiring Setback <br /> <br />Minimum Separation Distances for Disposal System Co~r!ponents <br /> <br /> Fron From Septic Tank and <br /> Sewage Disposal Other Trea~ent Units, <br /> Area, Including Effluent Sewer and <br /> Replacemegt Area Distribution Units <br /> <br />Groundwater Supplies (wells, including <br />temporarily abandoned wells) <br /> <br />100' <br /> <br />Springs: <br />--upgradient <br />--downgradient <br /> <br />Surface Public ~aters (creeks, ponds, lakes <br />rivers, etc.) setback ~o be measured from <br />bank dropoff or mean yearly high water <br />mark, whichever provides ~he greatest setback. <br /> <br />100' 50' <br /> <br />Intermittent Streams; <br />--Piped (watertight not less than 25' from <br /> any part of the on-site system) <br />~-Unpiped <br /> <br />20' 20' <br />50' 50' <br /> <br />Groundwater Ioterceptors, 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 /> --Upgrad ient <br /> --Dow ng rad i en t <br /> <br />20' 20' <br /> <br />10' lO <br />50' 25 <br /> <br />[rriga Lion Canals: <br /> Lined (watertight canal) <br /> Unlined <br /> --Upgradient <br /> --Down9 Fad i en t <br /> <br />25' 25' <br /> <br />25' 25' <br />50' 50' <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 noC Intersect Layers That <br /> Limit Effective Soil Depth <br /> <br />50' 25' <br />25' <br /> <br />Escarpments (Naturally occurring slopes Over <br />50 percen~ and greater ~han six feet in height) <br />--Which Intersect Layers that Limit <br /> Effective Soil Depth <br />--Which Oo No[ Intersect Layers <br /> That Limi[ Effectively Soil Depth <br /> <br />50' lO' <br />25' 10' <br />lO' /0' <br />10' 10' <br /> <br />9. Property Lines <br /> <br />lO. Water Lines <br /> <br />11. Foundation Lines of any Building <br /> including Garages and Out Buildings <br /> <br />10' 5' <br /> <br />*This does not prevent stream crossings of pressure effluent sewers- <br /> <br /> <br />