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NR 205.03 Note Note: Section NR 110.03 (30) reads: “Sewerage system" means all structures, conduits and pipes, by which sewage is collected, treated, and disposed of, except plumbing inside and in connection with buildings served, and service pipes, from building to street main.
NR 205.03(36) (36) “Sludge" means the accumulated solids generated during the biological treatment, chemical treatment, coagulation or sedimentation of water or wastewater.
NR 205.03(37) (37) “Standard of performance" means any restriction established on quantities, rates and concentrations of chemical, physical, biological and other constituents of wastewaters which are or may be discharged from new sources into the waters of the state.
NR 205.03(38) (38) “Storm water" or “storm runoff" means water resulting from melting snow or rainfall.
NR 205.03(39) (39) “Toxic pollutants" as defined in ch. 283, Stats., means those pollutants or combinations of pollutants, including disease-causing agents, which after discharge and upon exposure, injection, inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chains, will, on the basis of information available to the department, cause death, disease, behavioral abnormalities, cancer, genetic mutation, physiological malfunctions, including malfunctions in reproduction or physical deformations, in such organisms or their offspring.
NR 205.03(39g) (39g) “Treatment process" has the meaning specified under s. NR 110.03 (32g).
NR 205.03 Note Note: Section NR 110.03 (32g) “Treatment process" means a physical, biological or chemical action that is applied to wastewater to remove or reduce pollutants. A treatment process may consist of multiple individual treatment units. “Treatment process" includes screening, chemical treatment, sedimentation, biological treatment, filtration, disinfection and sludge digestion.
NR 205.03(39r) (39r) “Treatment unit" has the meaning specified under s. NR 110.03 (32i).
NR 205.03 Note Note: Section NR 110.03 (32i) reads: “Treatment unit" means individual structures or equipment within a sewage or wastewater treatment facility that are part of a treatment process. Typical treatment units are screens, clarifiers, aeration tanks, filters, digesters and lagoons.
NR 205.03(40) (40) “Treatment work" as defined in ch. 283, Stats., means any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial waste of a liquid nature or necessary to recycle or reuse water at the most economical cost over the estimated life of the work, including intercepting sewers, outfall sewers, sewage collection systems, cooling towers and ponds, pumping, power and other equipment, and their appurtenances, extensions, improvements, remodeling, additions, and alterations thereof, elements essential to provide a reliable recycled supply such as standby treatment units and clear well facilities, and any works, including site acquisition of the land that will be an integral part of the treatment process or is used for ultimate disposal of residues resulting from such treatment. Additionally, treatment work means any other method or system for preventing, abating, reducing, storing, treating, separating or disposing of municipal waste, including storm water runoff, or industrial waste, including waste in combined storm water and sanitary sewer systems.
NR 205.03(41) (41) “Upset" means an exceptional incident in which there is unintentional and temporary noncompliance with permit effluent limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.
NR 205.03(42) (42) “Vessel" as defined in ch. 283, Stats., means any watercraft or other artificial contrivance used or capable of being used as a means of transportation on water.
NR 205.03(43) (43) “Wastewater" means cooling water, contaminated storm water, noncontact cooling water, process wastewater, sewage or any combination of these.
NR 205.03(43m) (43m) “Wastewater treatment facility" means all the structures, pipes, and other equipment that constitute the various treatment processes and treatment units employed to reduce pollutants in wastewater.
NR 205.03(44) (44) “Waters of the state" as defined in ch. 283, Stats., means those portions of Lake Michigan and Lake Superior within the boundaries of Wisconsin, all lakes, bays, rivers, streams, springs, ponds, wells, impounding reservoirs, marshes, water courses, drainage systems and other surface or groundwater, natural or artificial, public or private within the state or under its jurisdiction, except those waters which are entirely confined and retained completely upon the property of a person.
NR 205.03 History History: Cr. Register, September, 1984, No. 345, eff. 10-1-84; am. (31), Register, April, 1990, No. 412, eff. 5-1-90; am. (13), Register, December, 1995, No. 480, eff. 1-1-96; corrections made under s. 13.93 (2m) (b) 7., Stats., Register, November, 1996, No. 491; correction in (intro.) made under s. 13.93 (2m) (b) 7., Stats., Register, April, 2001, No. 544; correction in (35) was made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545; CR 12-027: cr. (3m), (4m), am. (5), cr. (6e), (6m), (6s), (9m), (31g), (31r), (35e), (35m), (35s), (39g), (39r), (43m) Register July 2013 No. 691, eff. 8-1-13; correction in (39r) made under s. 13.92 (4) (b) 7., Stats., Register July 2013 No. 691; CR 15-085: cr. (9g) Register August 2016 No. 728, eff. 9-1-16; CR 17-002: am. (27), (28) Register April 2018 No. 748, eff. 5-1-18.
NR 205.04 NR 205.04Abbreviations. The abbreviations listed below have the meanings shown unless otherwise specifically defined wherever they occur in chs. NR 200 to 299 and in public notices, fact sheets, and permits issued under the Wisconsin pollutant discharge elimination system.
NR 205.04(1) (1) “ac" means acre.
NR 205.04(2) (2) “avg" means the average for 30 days.
NR 205.04(3) (3) “BAT" means best available technology economically achievable.
NR 205.04(4) (4) “BCT" means best conventional pollutant control technology.
NR 205.04(5) (5) “BOD" or “BOD5" means the 5 day biochemical oxygen demand.
NR 205.04(6) (6) “BPT" means best practicable technology currently available.
NR 205.04(7) (7) “btu" means British thermal unit.
NR 205.04(8) (8) “cm" means centimeter.
NR 205.04(9) (9) “COD" means chemical oxygen demand.
NR 205.04(10) (10) “cu ft" means cubic foot.
NR 205.04(11) (11) “cu m" means cubic meter.
NR 205.04(12) (12) “cu y" means cubic yard.
NR 205.04(13) (13) “DMR" means discharge monitoring report.
NR 205.04(14) (14) “DNR" means department of natural resources.
NR 205.04(15) (15) “DO" means dissolved oxygen.
NR 205.04(16) (16) “EPA" means the U.S. environmental protection agency.
NR 205.04(17) (17) “g" means gram.
NR 205.04(18) (18) “gal" means gallon.
NR 205.04(19) (19) “gpd" means gallons per day.
NR 205.04(20) (20) “ha" means hectare.
NR 205.04(21) (21) “hp" means horsepower.
NR 205.04(22) (22) “in" means inch.
NR 205.04(23) (23) “k cu m" means 1,000 cubic meters.
NR 205.04(24) (24) “kg" means kilogram.
NR 205.04(25) (25) “kkg" means 1,000 kilograms.
NR 205.04(26) (26) “kw" means kilowatt.
NR 205.04(27) (27) “kwh" means kilowatt hour.
NR 205.04(28) (28) “l" means liter.
NR 205.04(29) (29) “lb" means pound.
NR 205.04(30) (30) “m" means meter.
NR 205.04(31) (31) “max" means the maximum for any one day.
NR 205.04(32) (32) “meq" or “meq/l" means milliequivalents or milliequivalents per liter.
NR 205.04(33) (33) “mg" means milligram.
NR 205.04(34) (34) “MGD" or “mgd" means millions of gallons per day.
NR 205.04(35) (35) “ml" means milliliter.
NR 205.04(36) (36) “mm" means millimeter.
NR 205.04(37) (37) “mpn" or “MPN" means most probable number.
NR 205.04(38) (38) “Mw" means megawatt.
NR 205.04(39) (39) “Mwh" means megawatt hour.
NR 205.04(40) (40) “NPDES" means the national pollutant discharge elimination system.
NR 205.04(40m) (40m) “NSPS" means new source performance standards.
NR 205.04(41) (41) “pH" means the logarithm of the reciprocal of the hydrogen ion concentration or the negative logarithm of the hydrogen ion concentration.
NR 205.04(42) (42) “PCB" means polychlorinated biphenyl.
NR 205.04(43) (43) “POTW" means publicity owned treatment work.
NR 205.04(43k) (43k) “PSES" means pretreatment standards for existing sources.
NR 205.04(43n) (43n) “PSNS" means pretreatment standards for new sources.
NR 205.04(44) (44) “sq ft" means square foot.
NR 205.04(45) (45) “sq m" means square meter.
NR 205.04(46) (46) “SS" or “TSS" means total suspended (nonfiltrable) solids.
NR 205.04(47) (47) “TDS" means total dissolved (filtrable) solids.
NR 205.04(48) (48) “TOC" means total organic carbon.
NR 205.04(49) (49) “TTO" means total toxic organics.
NR 205.04(50) (50) “tpd" means tons per day.
NR 205.04(51) (51) “ug" means micrograms.
NR 205.04(52) (52) “WPDES" means the Wisconsin pollutant discharge elimination system.
NR 205.04 History History: Cr. Register, September, 1984, No. 345, eff. 10-1-84; cr. (40m), (43k) and (43n), Register, April, 1990, No. 412, eff. 5-1-90; correction in (intro.) was made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545.
NR 205.05 NR 205.05Rainfall events. The design rainfall amount and probable intensity of 10-year and 25-year, 24-hour rainfall events for locations in Wisconsin shall be determined from the data in table 1, or for a particular location such determination may be made on the basis of more recent rainfall probability data verified by a government agency and approved by the department for this purpose. - See PDF for table PDF
NR 205.05 Note Note: The data of table 1 were obtained by extrapolation from maps published by the National Weather Service in Technical Paper No. 40, “Rainfall Frequency Atlas of the United States".
NR 205.05 History History: Cr. Register, September, 1984, No. 345, eff. 10-1-84.
NR 205.06 NR 205.06Effluent limitations applicable where pH is monitored continuously. When an industrial point source discharger continuously monitors the pH of wastewater in accordance with the requirements of a WPDES permit and the pH limits in the permit are established as part of the effluent limitations applicable to the category of dischargers to which the industrial point source belongs, the permittee shall maintain the pH of such wastewater within the range of the categorical limits, except pH excursions from the range are permitted subject to the following constraints:
NR 205.06(1) (1) The total time during which the pH values are outside the range of categorical pH limits may not exceed 7 hours and 26 minutes in any calendar month.
NR 205.06(2) (2) An individual excursion from the range of categorical pH limits may not exceed 60 minutes.
NR 205.06(3) (3) These provisions do not apply to pH limits required in a WPDES permit which are established under s. NR 102.05 (3) (h).
NR 205.06 History History: Cr. Register, September, 1984, No. 345, eff. 10-1-84; correction in (3) was made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2001, No. 545.
NR 205.065 NR 205.065Effluent Limitations.
NR 205.065(1) (1)Effluent limitations in permits. The department shall impose permit effluent limitations or effluent standards for discharges of pollutants on the discharge point of the permitted facility except as provided in sub. (2).
NR 205.065(2) (2)Internal waste streams. The department may impose permit effluent limitations or effluent standards for discharges of pollutants on an internal waste stream when all of the following are true:
NR 205.065(2)(a) (a) Imposing effluent limitations or standards at the point of discharge is impractical or infeasible.
NR 205.065(2)(b) (b) The internal waste stream has not mixed with other waste streams or cooling water streams.
NR 205.065(2)(c) (c) The fact sheet under ch. NR 201 states the reasons why it is necessary to impose effluent limitations or standards on an internal waste stream.
NR 205.065(3) (3)Calculation of effluent limitations for POTWs. For continuous dischargers as defined in s. NR 205.03 (9g) and subject to ch. NR 210, effluent limitations shall be based on the maximum effluent flow, expressed as a daily average, that is anticipated to occur for 12 continuous months during the design life of the treatment facility unless it is demonstrated to the department that such a design flow rate is not representative of projected flows at the facility.
NR 205.065(4) (4)Calculation of effluent limitations for other continuous discharges. For all other discharges not subject to ch. NR 210, effluent limitations shall be calculated based on actual representative flow values except as provided in pars. (a) and (b).
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.