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4 <br />Section V Definitions <br /> <br /> <br />As used in this Resolution, the following words and terms, unless the context clearly requires <br />otherwise, shall have the following meanings: <br /> <br />"Alternative System" is an on-site sewage treatment system employing such methods as <br />described in the Alternative System section, and may include devices not presented in these <br />regulations. <br /> <br /> <br />"Adopting Authority" means North Dakota district health units, county, or city health <br />departments, or their designees. <br /> <br />“At-grade System” means a pressurized soil treatment and dispersal system where sewage <br />effluent is dosed to an absorption bed that is constructed directly on original soil at the ground <br />surface and covered by loamy soil materials. <br /> <br /> <br />"Baffle" is a device installed in a septic tank for proper operation of the tank and to provide <br />maximum retention of solids, and includes vented sanitary tees and submerged pipes in addition <br />to those devices that are normally called baffles. <br /> <br /> <br />"Bedroom" is any room within a dwelling that may be reasonably used as a sleeping room and <br />includes, but is not limited to unfinished areas that have potential to become a bedroom(s). <br />"Capacity" is the liquid volume of a septic tank using inside dimensions below the outlet. <br />“Centralized System” is an on-site sewage treatment system serving 4 or more dwellings or <br />buildings. <br /> <br /> <br />"Cesspool" (Seepage Pit) is an underground pit into which raw sewage and/or other untreated <br />liquid waste is discharged and from which the liquid seeps into the surrounding soil. <br /> <br /> <br />"Clean Sand" is a soil texture composed by weight of at least 25% of very coarse, coarse, and <br />medium sand varying in size from 2.0 to 0.25 mm, less than 50% of fine or very fine sand <br />ranging in size between 0.25 and 0.50 mm, and no more than 10% of particles smaller than 0.05 <br />mm. The jar test can be used as a method for testing clean sand. See Appendix A Procedures for <br />Soil Determination Material Acceptability. <br /> <br />"Distribution Pipes" are perforated pipes that distribute sewage effluent within a medium <br />including drain field rock, chambers, and gravelless pipe.