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5 <br />"Dosing Device" is a commercially manufactured sewage effluent pump, grinder pump, or <br />siphon. <br /> <br /> <br />"Drain field Rock" is clean, washed, rock, crushed igneous rock or similar insoluble, durable, <br />and decay-resistant material. The size shall range from ¾ inch minimum diameter to 2 ½ inches <br />effective diameter, with no more than 5% by weight passing a 3/4 inch sieve, and no more than <br />1% by weight passing a number 200 sieve. Materials greater than 2 ½ inches in diameter shall <br />not exceed 5% by weight. The jar test can be used as a method for testing drain field rock. See <br />Appendix A Procedures for Soil Determination Material Acceptability. <br /> <br /> <br />"Dwelling" is any building or place used or intended to be used by human occupants as a single- <br />family or multiple-family unit. <br /> <br />"Floodway" is the bed of a wetland or lake, the channel of a watercourse, and those portions of <br />the adjoining floodplain that are reasonably required to carry the regional flood discharge. <br /> <br /> <br />"Holding Tank" is a water-tight tank, with a minimum capacity of 1,000 gallons, meeting the <br />minimum requirements set forth in Appendix B Design Standards, used for the storage of sewage <br />until it can be transported to a point of approved disposal. <br /> <br /> <br />"Impermeable" with regard to soils, is a soil horizon or layer having a vertical permeability less <br />than 1 inch in 24 hours and shall be considered impermeable. <br /> <br /> <br />“Limiting Factor” means any factor that adversely affects the soils ability to effectively treat <br />sewage effluent. This encompasses actual soil saturation, redoximorphic features, or active <br />fluctuating seasonal soil water table, bedrock, layers/conditions of low permeability or any <br />physically identifiable condition that limits installation of a septic system. <br /> <br />"Malfunctioning or Failing System" is any situation in which the system fails to treat the sewage <br />or exposes it to potential human contact. Failures may involve any component or components of <br />a new or existing system which is improperly designed, installed, is clogged or no longer <br />functions properly or as intended. Examples of failures include, but are not limited to: sewage <br />backing up into a building; sewage surfacing, being pumped to the surface or discharged into a <br />waterway; sewage discharged into any abandoned well, crevice, sink hole, or other natural or <br />manmade opening in the ground including cesspools and dry wells. <br /> <br />“Mound System" means a soil treatment and dispersal system designed and installed such that all <br />of the infiltrative surface is installed above grade, using clean sand between the bottom of the <br />infiltrative surface and the original ground elevation utilizing pressure distribution and capped <br />with suitable material to stabilize the surface and encourage vegetative growth.