Agenda - Council - 10/14/1997 - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I I § 8~0 1:, Any soil treatment area shall be set back the following distances if located in am area which has been designated as follows by any local, state or federal regulation. in Feet !%ecreati¢' iai development lakes 75* General development lakes s_nd streams 50 Wild river 150 Scenic river 100 Critical river 100 De~aignated tributaries of wild, scenic and 75~ ree-reational rivers *Required for new developments and, where applicable, for ex~sting developments. Soft treatment areas shall not be placed in flood plains delineated by local ordinances adopted in compliance with the Statewide Standards and Criteria for Management of Flood plain Areas of Minnesota (Chapter 6120), or in areas for which regional flood information is available from the Department of Resources except that in areas where ten year flood ~n%rmation is available from and/or approved by the DI~R, soil treatment systems may be installed in accordance with the provisions of Chapter 7080.0210. Soil treatment areas of individual sewage treatment systems that are designed to treat an estimated daily sewage flow greater than 3,000 gallons per day must be separated from other s~m~lar]y sized system~ by at least 300 feet. I)e~n and constra, ct~on.. 1. The bottom of trenches and beds shall be at least 4 feet above the water table or bedrock_ 2. The trenches shall be not less than 18 inches, nor more than 36 inches wide. Any trench wider than 36 inches shall be considered a bed. !qo bed may be wider than 25 feet and parallel beds must not be located closer than l0 feet apart. 3. Trenches and beds shall be not more than 100 feet in length. 4. The bottom of the trench of bed excavation shall be level. The bottom and sides of the soil treatment system to the top of the drainfield rock shall be excavated in such a manner as to leave the soil in a natural, unsmeared, and uncompacted Printed 12/28/90 Page 251