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e. Mound Systems, Type 2: This system is intended for areas of <br />extremely permeable soils. <br />1. Percolation Rate: The percolation rate must be faster than <br />60 minutes per inch and may be faster.than 0.5 minutes <br />per inch. <br />2. Depth to Groundwater or Seasonally Saturated Horizons: For <br />proper functioning of•this system the minimum depth to <br />groundwater or seasonally saturated conditions shall be <br />more than 3 feet. <br />3. Slope: The land slope in the area being considered for <br />installation of the system shall not be greater than 6%. <br />4. Position.on the Landscape: The system shall be installed <br />on level areas, on top of rises on convex slopes or on <br />sides of rises on plane. The systems shall not be installed <br />in depressions, swales or drainageways. <br />5.. Soils: The following soil classification series shall <br />in most cases be. considered.unsuitable for the installation <br />• of*standard systems, but -acceptable for a properly designed <br />mound system: j <br />An6ka AnB <br />Braham B+B <br />Burnsville - BuB, BxB <br />-13 <br />