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<br />"Soil Texture Classification" - is where soil particle sizes or textures are <br />specified in these regulations, they refer to the Guide for USDA Textural <br />Classification. <br />"Soil Type" - is the lowest unit in the natural system of soil classification; a <br />subdivision of a soil series and consisting of or describing soils that are alike in <br />all characteristics including the texture of the A Horizon. <br />"Soil Treatment Area" - is an area where sewage tank effluent is treated <br />and disposed of below the ground surface by filtration and percolation through <br />the soil and also by evapotranspiration, and includes those systems commonly <br />known as seepage bed, trench drain field, disposal field, and also includes <br />mounds and seepage pits. <br />"State Approved Disposal Facility" - is any disposal facility which has a <br />National Pollutant Discharge Elimination System (NPDES) Permit or State <br />Disposal System Permit or letter of approval from the North Dakota State Health <br />Department and Consolidation Laboratories. <br />"Standard System" - an individual sewage treatment system employing a <br />sewage tank and the soil treatment system commonly known as seepage bed or <br />trenches, drain field, or leach field. <br />"Valve Box" - is any device which can stop sewage tank effluent from flowing <br />to a portion of the soil treatment area and includes, but is not limited to, caps or <br />plugs on distribution or drop box outlets, divider boards, butterfly values, gate <br />valves, or other mechanisms. <br />"Waste Hauler or Septic Tank Pumper" - is any person who engages in <br />the removal of sewage and/or industrial waste including, but not limited to, those <br />generated by washing machines, kitchens, sinks, from septic tanks, cesspools, <br />holding tanks, or other sewage treatment or disposal facilities and who deposits <br />such materials at some location approved by the ND State Department of Health <br />and Consolidated Laboratories. <br /> <br />7 <br />