For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ADMINISTRATION. Those fixed costs attributable to administration of the wastewater treatment works (i.e. billing and associated bookkeeping and accounting costs).
BIOCHEMICAL OXYGEN DEMAND or BOD5. The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20° C., expressed in milligrams per liter.
CITY. The area within the corporate boundaries of Waseca, Minnesota, as presently established or as amended by ordinance or other legal actions at a future time. When used herein, the term city may also refer to the City Council or its authorized representative.
COMMERCIAL USER. Any place of business which discharges sanitary waste as distinct from industrial wastewater.
COMMERCIAL WASTEWATER. Domestic wastewater emanating from a place of business as distinct from industrial wastewater.
DEBT SERVICE CHARGE. A charge levied on uses of wastewater treatment facilities for the cost of repaying money bonded to construct the facilities.
EXTRA STRENGTH WASTE. Wastewater having a BOD and/or TSS greater than domestic waste, as defined herein, and not otherwise classified as an incompatible waste.
GOVERNMENTAL USER. Users which are units, agencies or instrumentalities of federal, state or local government discharging normal domestic strength wastewater.
INCOMPATIBLE WASTE. Waste that either singly or by interaction with other wastes interferes with any waste treatment process, constitutes a hazard to humans or animals, creates a public nuisance or creates any hazard in the receiving waters of the wastewater treatment works.
INDUSTRIAL USERS or INDUSTRY.
(1) Entities that discharge into a publicly owned wastewater treatment works, liquid wastes resulting from the processes employed in industrial or manufacturing processes, or from the development of any natural resources. These are identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented under one of the following divisions:
(a) Division A, Agriculture, Forestry and Fishing;
(b) Division B, Mining;
(c) Division D, Manufacturing;
(d) Division E, Transportation, Communications, Electric, Gas and Sanitary Sewers; and
(e) Division I, Services.
(2) For the purpose of this definition, domestic waste shall be considered to have the following characteristics:
(a) BOD5 less than 300 mg/l; and/or
(b) Suspended solids less than 300 mg/l.
(3) Any nongovernmental user of a publicly owned treatment works which discharges wastewater to the treatment works which contains toxic pollutants or poisonous solids, liquids or gases in sufficient quantity either singly or by interaction with other wastes, to contaminate the sludge of any municipal systems, or to injure or to interfere with any sewage treatment process, or which constitutes a hazard to humans or animals, creates a public nuisance, or creates any hazard in or has an adverse effect on the waters receiving any discharge from the treatment works.
NORMAL DOMESTIC STRENGTH WASTEWATER or DOMESTIC FLOW. Wastewater that is primarily produced by residential users, with BOD5 concentrations not greater than 300 mg/l and suspended solids concentrations not greater than 300 mg/l.
(`86 Code, § 3.57)