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Effective April 28, 2015 Chapter Four Subsurface Sewage Treatment System Regulations
<br />in Section 17 to Section 21 serving dwellings or other establishments with a design flow of 2,500
<br />gallons per day or less..
<br />(62) Licensed maintainer business. "Licensed maintainer business" means a business that is
<br />authorized to measure scum and sludge depths in sewage tanks for the accumulation of solids and
<br />removing these deposits; remove solids and liquids from toilet waste treatment devices; transport
<br />septage; land apply septage or dispose of septage in a treatment facility; identify problems related
<br />to sewage tanks, baffles, maintenance hole covers, extensions, and pumps and make the repairs;
<br />evaluate sewage tanks, pump tanks, distribution devices, valve boxes, or drop boxes for leakage;
<br />identify cesspools, seepage pits, leaching pits, and drywells; and clean supply pipes and distribution
<br />pipes for all SSTS.
<br />(63) Licensed service provider business. "Licensed service provider business" means a business that
<br />is authorized to measure scum and sludge depths for the accumulation of solids; identify problems
<br />related to sewage tanks, baffles, effluent screens, maintenance hole covers, extensions, and pumps
<br />and make the repairs; evaluate sewage tanks, dosing chambers, distribution devices, valve boxes, or
<br />drop boxes for leakage; and clean supply pipes and distribution pipes. Service provider businesses
<br />are also authorized to assess, adjust, and service systems for proper operation; take, preserve, store,
<br />and ship samples for analysis; interpret sampling results and report results for an SSTS; and operate
<br />sewage collections systems discharging to an SSTS.
<br />(64) Liquid capacity. "Liquid capacity" means the liquid volume of a sewage tank below the invert of
<br />the outlet pipe or, for holding tanks and pump tanks, the liquid volume below the invert of the inlet.
<br />(65) Long-term sewage treatment. "Long-term sewage treatment" shall mean enough lot area to
<br />contain two Type I or Type lI soil treatment and dispersal areas.
<br />(66) Lot. "Lot" means a parcel of land designated by metes and bounds, registered land survey, plat or
<br />other means, and which description is either recorded in the Office of the Washington County
<br />Recorder or Registrar of Titles or used by the County Treasurer or County Assessor to separate
<br />such parcel from other lands for tax purposes.
<br />(67) Maintenance permit. "Maintenance permit" means the permit issued to a licensed maintainer
<br />business prior to performing maintenance as described in Section 22.
<br />(68) Management plan. "Management plan" means a plan that requires the periodic examination,
<br />adjustment, testing, and other operational requirements to meet system performance expectations,
<br />including a planned course of action in the event a system does not meet performance expectations.
<br />(69) Matrix. "Matrix" means the majority of the color in a soil horizon, as described in the Field Book
<br />for Describing and Sampling Soils, which is incorporated by reference in Section 2.2 (46).
<br />(70) Midsized subsurface sewage treatment system or MSTS. "Midsized subsurface sewage
<br />treatment system" or "MSTS" means a subsurface sewage treatment system, or part thereof, as set
<br />forth in Minnesota Statutes, sections 115.03 and 115.55, that employs sewage tanks or other
<br />treatment devices with final discharge into the soil below the natural soil elevation or elevated final
<br />grade and that is designed to receive sewage with a design flow of greater than 5,000 gallons per
<br />day to 10,000 gallons per day. MSTS also includes sewage collection systems and associated
<br />tanks that discharge into MSTS treatment or dispersal components. MSTS does not include those
<br />components defined as plumbing under Minnesota Rules, Chapter 4715.
<br />(71) Mottles. "Mottles" means the minority of the variegated colors in a soil horizon, as described in
<br />the Field Book for Describing and Sampling Soils, which is incorporated by reference in Section
<br />2.2 (46).
<br />(72) Mound system. "Mound system" means a soil treatment and dispersal system designed and
<br />installed such that all of the infiltrative surface is installed above grade, using clean sand between
<br />the bottom of the infiltrative surface and the original ground elevation, utilizes pressure distribution
<br />and capped with suitable soil material to stabilize the surface and encourage vegetative growth.
<br />(73) MPCA. "MPCA" means the Minnesota Pollution Control Agency.
<br />(74) NPDES permit. "NPDES permit" means a National Pollutant Discharge Elimination System
<br />permit issued by the MPCA.
<br />14 Washington County Development Code
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