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4. Sewage tanks shall be set back the following distances if located in <br />an area of the City which has been designated as follows by local, state or federal <br />regulation: <br /> <br />R~egulati on <br /> <br />Minimum Setback Distances (feet) <br /> <br />Natural Environment Lakes <br /> and Rivers <br /> <br />150' <br /> <br />Recreational Development <br /> Lakes and Rivers <br /> <br />75* <br /> <br />General Development Lakes <br /> and Rivers <br /> <br />50* <br /> <br />Wild Rivers 150' <br /> <br />Scenic Rivers 100' <br /> <br />Critical Rivers <br /> <br />100' <br /> <br />Designated Tributaries of Wild <br /> Scenic and Recreational Rivers <br /> <br />75* <br /> <br />*Required for new development(s) and where practicable, for <br />existing developments. <br /> <br /> 5. Surface Flooding. Sewage tanks shall not be placed in the flood plains, <br />delineated by local ordinances adopted in compliance with the Statewide Standards <br />for Management of Flood Plain Areas of Minnesota (Minn. Reg. NR8'5-93), of in areas <br />iF6f which regional flood information is available from the Department of Natural <br />Resources. <br /> <br />4-.04 Distribution of Effluent <br /> <br />a. Gravi t~v Distribution. <br /> <br /> 1. Level Ground. Where the elevation differences of the ground surface does <br />not exceed 28 inches in any direction within the soil treatment area, the sewage tank <br />effluent may be directed to the soil treatment area through a system of interconnected <br />distributuion pipes or trenched in a continuous system. <br /> <br /> 2. Slightly Sloping Ground. Where the elevation difference of the ground <br />surface exceeds 28 inches in any direction within the soil treatment area, the sewage <br />tank effluent may be distributed by a distribution box provided the final ground surface <br />elevation of the lowest trench is at least one foot higher than the outlet inverts of <br />the distribution box. <br /> <br />10 <br /> <br /> <br />