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Effective April 28, 2015 Chapter Four Subsurface Sewage Treatment System Regulations <br />(90) Pressure distribution. "Pressure distribution" means a network of distribution pipes in which <br />effluent is forced through orifices under pressure. <br />(91) Privy. "Privy" means an aboveground structure with an underground cavity that meets the <br />requirements of Section 18.3 that is used for the storage or treatment and dispersal of toilet wastes, <br />excluding water for flushing and graywater. A privy also means a nondwelling structure containing <br />a toilet waste treatment device. <br />(92) Proprietary product. "Proprietary product" means a sewage treatment or distribution technology, <br />method, or material subject to a patent or trademark. <br />(93) Public domain technology. "Public domain technology" means a sewage treatment or distribution <br />technology, method, or material not subject to a patent or trademark. <br />(94) Public waters. "Public waters" means any public waters or wetlands defined in Minnesota <br />Statutes, section 103G.005, subdivision 15, or identified as public waters or wetlands by the <br />inventory prepared according to Minnesota Statutes, section 103G.201. <br />(95) Pump tank. "Pump tank" means a tank or separate compartment within a sewage tank, which <br />receives sewage tank effluent, that serves as a reservoir for a pump. A separate tank used as a <br />pump tank is considered a septic system tank under Minnesota Statutes, section 115.55, subdivision <br />1, paragraph (p). <br />(96) Qualified employee. "Qualified employee" means a state or local government employee who <br />designs, installs, maintains, pumps, or inspects SSTS as part of the person's duties. <br />(97) Redoximorphic features. "Redoximorphic features" means: <br />(A) a color pattern in soil, formed by oxidation and/or reduction of iron and/or manganese in <br />saturated soil coupled with its removal, translocation, or accrual, which results in the loss <br />(depletion) or gain (concentration) of mineral compounds compared to the matrix color; or <br />(B) a soil matrix color controlled by the presence of ferrous iron. Redoximorphic features are <br />described in Section 9.6 (5). <br />(98) Replacement. "Replacement" means the removal or discontinued use of any major portion of an <br />ISTS and reinstallation of that portion of the system. <br />(99) Rock fragments. "Rock fragments" means pieces of rock greater than two millimeters in diameter <br />that are strongly cemented and resistant to rupture. Rock fragments are commonly known as <br />gravel, stones, cobbles, and boulders. <br />(100) SDS permit. "SDS permit" means a State Disposal System permit issued by the MPCA. <br />(101) Sand. "Sand" means a sand soil texture, as described in the Soil Survey Manual (1993) developed <br />by the Natural Resource Conservation Service, United States Department of Agriculture. The <br />manual is incorporated by reference into this ordinance. <br />(102) Seepage bed. "Seepage bed" means a soil treatment and dispersal system the absorption width of <br />which is greater than three feet but no greater than 25 feet. <br />(103) Seepage pit. "Seepage pit" means an underground pit that receives sewage tank effluent and from <br />which the liquid seeps into the surrounding soil. <br />(104) Septage. "Septage" means solids and liquids removed from an SSTS and includes solids and <br />liquids from cesspools, seepage pits, other pits, or similar systems or devices that receive sewage. <br />Septage also includes solids and liquids that are removed from portable, incinerating, composting, <br />holding, or other types of toilets. Waste from Type III marine sanitation devices, as defined in <br />Code of Federal Regulations, title 33, section 159.3, and material that has come into contact with <br />untreated sewage within the past 12 months is also considered septage. <br />(105) Septic tank. "Septic tank" means any receptacle that is designed and constructed to receive the <br />discharge of sewage from a building sewer or preceding tank, stores liquids for a detention period <br />that provides separation of solids from liquid and digestion of organic matter, and allows the <br />effluent to discharge to a succeeding tank, treatment device, or soil dispersal area. <br />(106) Serial distribution. "Serial distribution" means distribution of sewage tank effluent by gravity <br />flow that progressively loads one section of a soil treatment and dispersal system to a <br />16 Washington County Development Code <br />