The meaning of terms used in this chapter shall be as follows:
ACTThe Federal Water Pollution Control Act (33 U.S.C. §
1251 et seq.) as amended by the Federal Water Pollution Control Act Amendments of 1972 (Pub. L. 92-500 and Pub. L. 93-243) or modified by Ch.
283, Wis. Stats., or appropriate section of the Wisconsin Administrative Code adopted pursuant to Ch.
283, Wis. Stats.
APPROVING AUTHORITYThe Common Council of the City of Muskego or its duly authorized deputy, agent or representative.
BODThe quantity of oxygen, expressed in milligrams per liter (mg/l), utilized in the biochemical oxidation of organic matter under standard laboratory conditions for five days at a temperature of 20° centigrade. The laboratory determination shall be made in accordance with procedures set forth in Standard Methods.
BUILDING SEWER, LATERAL or SERVICE PIPEA sewer that carries only sewage and industrial wastes from the building plumbing to the public sanitary sewer. This pipe shall also be defined as one connection per pipe.
COLLECTION SYSTEMThe system of sewers and appurtenances for the collection, transportation and pumping of domestic wastewater and industrial waste.
COMMERCIALMultifamily dwelling units consisting of three or more dwelling units and all other uses not defined as residential, condominium or industrial users.
CONDOMINIUMA residential dwelling unit that may consist of a single-family unit, duplex units or multifamily buildings of three or more units with a sewer connection that may be used individually or in common with other condominium units.
CONNECTION CHARGEA charge levied on users for each lateral connected to the sewerage system. The revenues generated from the connection charge shall be used to cover the cost of infiltration and inflow.
CONSUMPTION CHARGEA charge levied on users to recover the component of total operation, maintenance and capital costs of the sewerage system that relates to wastewater flow caused by users of the sewerage system. The consumption charge shall consist of a charge in terms of dollars per 1,000 gallons of flow.
DEBT RETIREMENTAll annual principal and interest requirements and obligations of the City for the sewerage system, including capital charges.
DEDUCT METERA water meter installed on fixtures in a building that does not discharge to the sanitary sewer and is used to determine a deduction from the main water meter for sewer usage billing purposes.
[Added 8-22-2002 by Ord. No. 1113]
DOMESTIC WASTEWATERWaterborne waste normally being discharged from the sanitary conveniences of dwellings, apartment houses, hotels, office buildings, factories and institutions, free of industrial waste and in which the average concentration of suspended solids is established at 320 mg/l and a BOD is established at 255 mg/l.
INDUSTRIAL USERA. Any nongovernmental, nonresidential user of the sewerage system that discharges more than the equivalent of 1,000 gallons per day (gpd) of sanitary wastes and whose activities are identified in the Standard Industrial Classification Manual, 1972, Office of Management and Budget, as amended and supplemented, under the following divisions:
(1) Division A: Agriculture, Forestry and Fishing.
(3) Division D: Manufacturing.
(4) Division E: Transportation, Communications, Electric, Gas and Sanitary Services.
B. In determining if a user is in the industrial classification, the City may exclude domestic wastes or discharges from sanitary conveniences. After applying the sanitary waste exclusion, discharges in the above divisions that have a volume exceeding 1,000 gpd or the weight of biochemical oxygen demand (BOD) or suspended solids (SS) equivalent to that weight found in 1,000 gpd of sanitary waste are considered industrial users. Sanitary wastes, for purposes of this calculation of equivalency, are the waste discharges from residential users. Any nongovernmental user of the sewerage system that discharges wastewater to the sewerage system that contains toxic pollutants or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other waste, to contaminate the sludge of any municipal system or to injure or to interfere with any sewage treatment process, or that constitute a hazard to humans or animals, create a public nuisance, or create any hazard in or have an adverse effect on the waters receiving any discharge from the treatment works, shall be an industrial user, even if it does not discharge the equivalent of 1,000 gallons per day of sanitary waste.
INDUSTRIAL WASTEAny waterborne solids, liquids or gaseous wastes, other than domestic wastewater, resulting from, discharging from, flowing from or escaping from any commercial, industrial, manufacturing or food processing operation or process or from the development of any natural resource, or any mixture of these with water or domestic wastewater.
INTERCEPTING SEWERA sewer constructed to receive the dry weather flow of untreated or inadequately treated wastewater from one or more existing sanitary system terminals, other than from a dwelling or building that presently discharges or formerly discharged flow directly into any waters of the state, and convey the flow to a treatment works, or is to serve in lieu of an existing or proposed treatment works.
NATURAL OUTLETAny outlet into a watercourse, pond, ditch, lake or other body of surface water or groundwater.
NORMAL SEWAGEWastewater in which BOD or suspended solids concentrations do not exceed normal concentrations of:
A. A five-day 20° C. BOD of not more than 200 parts per million.
B. A suspended solids concentration of not more than 250 parts per million.
OPERATION AND MAINTENANCE COSTThe actual sums spent by the Utility in the operation and maintenance of its sewerage system, consisting of, but not limited to, each and all of the following purposes:
A. Wages and salaries and employee-related expenses of operating, maintenance, clerical, laboratory and supervisory personnel, together with fringe benefits and premiums paid on such wages and salaries for the State of Wisconsin workers' compensation coverage.
C. Chemicals, fuel and other operating supplies.
D. Repairs to and maintenance of the equipment associated therewith.
E. Premiums for hazard insurance.
F. Premiums for insurance providing coverage against liability for the injury to person and/or property.
H. Operation, licensing and maintenance costs for trucks and heavy equipment.
I. Consultant and legal fees.
K. Operation, maintenance and capital costs charged to the City of Muskego by the Milwaukee Metropolitan Sewerage District (MMSD) or the Town of Norway Sanitary District No. 1.
PERSONAny and all persons, natural or artificial, including any individual, firm, company, municipal or private corporation, association, governmental agency or other entity and agents, servants or employees.
pHThe logarithm (base 10) of the reciprocal of the hydrogen ion concentration expressed in moles per liter. It shall be determined by one of the procedures outlined in Standard Methods.
PUBLIC SEWERA sewer in which all owners or abutting properties have equal rights and which is controlled or owned by public authority.
REPLACEMENTExpenditures for obtaining and installing equipment, accessories and appurtenances that are necessary during the useful life of the treatment works to maintain the capacity and performance for which such works were designed and constructed.
RESIDENTIALAll condominiums, single-family or two-family (duplex) dwelling units. Multifamily or multiunit buildings consisting of three or more dwelling units shall be classified as commercial. Multifamily dwelling buildings of three or more units that consist of condominiums shall be classified as residential.
RESIDENTIAL EQUIVALENT CONNECTION (REC)The amount of normal wastewater discharged (base flow) by one average household. For user charge billings, the base flow associated with one residential equivalent connection shall be computed by multiplying the City occupancy factor, as described in the current volume of the Milwaukee Metropolitan Sewerage District (MMSD) Cost Recovery Procedures Manual, times the gallons per capita per day factor established yearly by MMSD. Commercial lands shall be estimated at 4.81 RECs per acre and industrial lands shall be estimated at 9.63 RECs per acre until the lands are developed and actual flows can be established.
SANITARY SEWERA sewer that conveys domestic wastewater or industrial waste or a combination of both and into which stormwater, surface water and groundwater or unpolluted industrial wastewater is not intentionally passed.
SEWERAGE SYSTEMAll facilities for the collection, transporting, and pumping of waste and wastewater. Also may be referred to as "sewer system."
SEWER SERVICE CHARGESCharges to users of the sewerage system. Sewer service charges may include connection charges, consumption charges, ready to serve charges, and other charges as deemed necessary by the approving authority so as to assure that each user of the sewerage system pays its proportionate share of the cost of such facilities.
SLUGAny discharge of water or wastewater which in concentration of any given constituent or in quantity of flow exceeds for any period longer than 15 minutes more than five times the average twenty-four-hour concentration or flows during normal operation and shall adversely affect the collection system and/or performance of the wastewater treatment works.
STANDARD METHODSThe methods and procedures set forth in the latest edition of Standard Methods for the Examination of Water and Wastewater as prepared, approved and published by the American Public Health Association, American Water Works Association and the Water Environment Federation.
STORM SEWERA sewer that carries storm and surface drainage but excludes domestic wastewater and industrial wastes.
SUSPENDED SOLIDSSolids that either float on the surface of or are in suspension in water, sewage or other liquids and which are removable by a laboratory filtration device. Quantitative determination of suspended solids shall be made in accordance with procedures set forth in Standard Methods.
UNPOLLUTED WATERWater of quality equal to or better than the effluent criteria in effect or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers and wastewater treatment facilities provided.
USERAny person discharging domestic wastewater or industrial wastes into the collection system.
UTILITYThe City of Muskego Sewer Utility established by this chapter.
WASTEAny solid, liquid or gaseous material or combination thereof discharged from any residences, business buildings, institutions and industrial establishments into the collection system or storm sewer.
WASTEWATERA combination of the water-carried waste discharges into the collection system from residences, business buildings, institutions and industrial establishments, together with such groundwater, surface water and stormwater as may be present.
WPDES PERMITA permit to discharge pollutants obtained under the Wisconsin Pollutant Discharge Elimination System (WPDES) pursuant to Ch.
283, Wis. Stats.