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7080.1100 INDIVIDUAL SUBSURFACE SEWAGE TREATMENT SYSTEMS 18
<br />A. a color pattern in soil, formed by oxidation and reduction of iron or manganese in saturated
<br />soil coupled with their removal, translocation, or accrual, which results in the loss (depletion) or gain
<br />(concentration) of mineral compounds compared to the matrix color; or
<br />B. a soil matrix color controlled by the presence of ferrous iron.
<br />Redoximorphic features are described in part 7080.1720, subpart 5, item E.
<br />Subp. 66. Replacement. "Replacement" means the removal or discontinued use of any major portion
<br />of an ISTS and reinstallation of that portion of the system, such as reinstallation of a new sewage tank,
<br />holding tank, dosing chamber, privy, or soil dispersal system.
<br />Subp. 66a. Rock fragments. "Rock fragments" means pieces of rock greater than two millimeters
<br />in diameter that are strongly cemented and resistant to rupture. Rock fragments are commonly known as
<br />gravel, stones, cobbles, and boulders.
<br />Subp. 66b. Sand. "Sand" means a sand soil texture, as described in the Soil Survey Manual (1993)
<br />developed by the Natural Resource Conservation Service, United States Department of Agriculture. The
<br />manual is incorporated by reference, is not subject to frequent change, and is available through the Minitex
<br />interlibrary loan system.
<br />Subp. 67. Seepage bed. "Seepage bed" means a soil treatment and dispersal system, the absorption
<br />width of which is greater than three feet but no greater than 25 feet.
<br />Subp. 68. Seepage pit. "Seepage pit" means an underground pit that receives sewage tank effluent
<br />and from which the liquid seeps into the surrounding soil and that meets the design requirements in part
<br />7080.2550.
<br />Subp. 69. Septage. "Septage" means solids and liquids removed from an SSTS and includes solids
<br />and 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, holding,
<br />or other toilets. Waste from Type 111 marine sanitation devices, as defined in Code of Federal Regulations,
<br />title 33, section 159.3, and material that has come into contact with untreated sewage within the past 12
<br />months is also considered septage.
<br />Subp. 70. Septic tank. "Septic tank" means any watertight, covered receptacle that is designed and
<br />constructed to receive the discharge of sewage from a building sewer or preceding tank, stores liquids for a
<br />detention period that provides separation of solids from liquid and digestion of organic matter, and allows
<br />the effluent to discharge to a succeeding tank, treatment device, or soil dispersal system.
<br />Subp. 71. Serial distribution. "Serial distribution" means distribution of sewage tank effluent by
<br />gravity flow that progressively loads one section of a soil treatment and dispersal system to a predetermined
<br />level before overflowing to the succeeding section and does not place a dynamic head on the lower section
<br />of the soil treatment and dispersal system. The distribution medium is allowed to serve as a conveyance
<br />medium to the next section.
<br />Subp. 72. Setback. "Setback" means a separation distance measured horizontally.
<br />Subp. 73. Sewage. "Sewage" means waste produced by toilets, bathing, laundry, or culinary
<br />operations or the floor drains associated with these sources, and includes household cleaners, medications,
<br />and other constituents in sewage restricted to amounts normally used for domestic purposes.
<br />Subp. 74. Sewage tank. "Sewage tank" means a receptacle used in the containment or treatment
<br />of sewage and includes, but is not limited to, septic tanks, aerobic tanks, pump tanks, and holding tanks.
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<br />so
<br />of Statutes, State of Minnesota. All Rights Reserved.
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