NR 102.04 HistoryHistory: Cr. Register, September, 1973, No. 213, eff. 10-1-73; am. (3), Register, December, 1977, No. 264, eff. 1-1-78; renum. from NR 102.02, r. (3) (d) 1. to 3., and (5), renum. (3) (intro.) to (d) (intro.) and (e) and (4) to be (4) (intro.) to (e) and (5) and am. (4) (a), (d), (e) (intro.) and (5), cr. (6) and (7), Register, February, 1989, No. 398, eff. 3-1-89; am. (3) (intro.), (6), (7), r. (3) (a), renum. (3) (b) to (f) to be (3) (a) to (e) and am. (3) (a), Register, August, 1997, No. 500, eff. 9-1-97; CR 07-111: am. (title), (1) (intro.), (2), (3) (intro.), (4) (title) and (a), r. (4) (b), (e) 1. and (5) to (7), renum. (4) (e) (intro.), 2. and 3. to be (4) (b) and am. (4) (b) (intro.), cr. (4) (e) and (5) to (9) Register September 2010 No. 657, eff. 10-1-10; correction in (8) (c) made under s. 13.92 (4) (b) 7., Stats., Register September 2010 No. 657; CR 19-014: am. (5) (a), r. and recr. (6) Register April 2020 No. 772, eff. 5-1-20; CR 21-083: cr. (8) (d) Register July 2022 No. 799, eff. 8-1-22; CR 19-094: r. and recr. (4) (a), cr. (4) (am), r. (4) (b), am. (4) (d), cr. (4) (f), am. (5) (b) Register September 2022 No. 801, eff. 10-1-22. NR 102.05(1)(a)(a) No waters of the state shall be lowered in quality unless it has been affirmatively demonstrated to the department that such a change is justified as a result of necessary economic and social development, provided that no new or increased effluent interferes with or becomes injurious to any assigned uses made of or presently possible in such waters. NR 102.05(1)(b)(b) Classification system. For the purposes of this subsection, all surface waters of the state, or portions thereof, shall be classified as one of the following: NR 102.05(2)(2) Streamflow. Water quality standards will not be maintained under all natural occurrences of flow, temperature, or other water quality characteristics. The determination of water quality based effluent limitations or other management practices shall be based upon the following conditions except as provided in ch. NR 106 for toxic and organoleptic substances and whole effluent toxicity: NR 102.05(2)(a)(a) The average minimum 7-day low streamflow which occurs once in 10 years (7-day Q10); or, NR 102.05(2)(b)(b) In the case of dissolved oxygen and wherever sufficient data on streamflow and temperature are available, by application of a 0.274% level of nonattainment. This is equivalent to an expected nonattainment of the dissolved oxygen criterion of one day per year. NR 102.05(3)(3) Mixing zones. Water quality standards shall be met at every point outside of a mixing zone. The size of the mixing zone shall be based on such factors as effluent quality and quantity, available dilution, temperature, current, type of outfall, channel configuration and restrictions to fish movement. For toxic and organoleptic substances with water quality criteria or secondary values specified in or developed pursuant to chs. NR 102 and 105, allowable dilution shall be determined as specified in ch. NR 106 in addition to the requirements specified in this subsection. As a guide to the delineation of a mixing zone, the following shall be taken into consideration: NR 102.05(3)(a)(a) Limiting mixing zones to as small an area as practicable, and conforming to the time exposure responses of aquatic life. NR 102.05(3)(b)(b) Providing passageways for fish and other mobile aquatic organisms. NR 102.05(3)(c)(c) Where possible, mixing zones being no larger than 25% of the cross–sectional area or volume of flow of a flowing water body and not extending more than 50% of the width. NR 102.05(3)(d)(d) Final acute criteria and secondary values specified in or developed pursuant to s. NR 105.05 for the fish and aquatic life subcategory for which the receiving water is classified not being exceeded at any point in the mixing zone. NR 102.05(3)(e)(e) Mixing zones not exceeding 10% of an inland lake’s total surface area. NR 102.05(3)(f)(f) Mixing zones not adversely impacting spawning or nursery areas, migratory routes, nor mouths of tributary streams. NR 102.05(3)(g)(g) Mixing zones not overlapping, but where they do, taking measures to prevent adverse synergistic effects. NR 102.05(3)(h)(h) Restricting the pH to values greater than 4.0 s.u. and to values less than 11.0 s.u. at any point in the mixing zone for the protection of indigenous fish and fish food organisms. NR 102.05(5)(5) Resource management exemptions. Application of chemicals for water resource management purposes in accordance with statutory provisions is not subject to the requirements of the standards except in case of water used for public water supply. NR 102.05(6)(a)(a) The criteria in the Radiation Protection Code, s. DHS 157.44, shall apply to the disposal and permissible concentrations of radioactive substances. NR 102.05(6)(b)(b) Methods used for analysis of samples shall be as set forth in ch. NR 219 unless alternative methods are specified by the department. NR 102.05 HistoryHistory: Cr. Register, September, 1973, No. 213, eff. 10-1-73; renum. (5) and (6) to be (6) and (7), cr. (5), Register, July, 1975, No. 235, eff. 8-1-75; r. and recr. (3), Register, August, 1981, No. 308, eff. 9-1-81; correction in (7) made under s. 13.93 (2m) (b) 7., Stats., cr. (4) (h), Register, September, 1984, No. 345, eff. 10-1-84; renum. from NR 102.03, r. (1), cr. (1) (b), renum. (2) to (7) to be (1) (a) to (6) and am. (2), (3) (intro.) and (d) and (6), Register, February, 1989, No. 398, eff. 3-1-89; am. (1) (b) 3., (3) (intro.) and (d), Register, August, 1997, No. 500, eff. 9-1-97; correction in (6) (a) made under s. 13.93 (2m) (b) 7., Stats. Register July 2006 No. 607, eff. 8-1-06; correction in (6) (a) made under s. 13.92 (4) (b) 7., Stats., Register July 2010 No. 655; CR 07-111: am. (3) (intro.), (b), (c), (e) and (f), r. (4) Register September 2010 No. 657, eff. 10-1-10. NR 102.06(1)(1) General. This section identifies the water quality criteria for total phosphorus that shall be met in surface waters. Assessment procedures for waterbodies are specified in ss. NR 102.07 and 102.60. NR 102.06(2)(2) Definitions. In this section, the following definitions apply: NR 102.06(2)(b)(b) “Ephemeral stream” means a channel or stream that only carries water for a few days during and after a rainfall or snowmelt event and does not exhibit a flow during other periods, and includes, but is not limited to, grassed waterways, grassed swales, and areas of channelized flow as defined in s. NR 243.03 (7). NR 102.06(2)(c)(c) “Mean water residence time” means the amount of time that a volume of water entering a waterbody will reside in that waterbody. NR 102.06(2)(d)(d) “Nearshore waters” means all waters of Lake Michigan or Lake Superior within the jurisdiction of the State of Wisconsin in the zone extending from the shore to a depth of 10 meters, based on the long-term mean elevation for Lake Superior of 183.4 meters (601.7 feet) and for Lake Michigan of 176.5 meters (579.0 feet). NR 102.06(2)(e)(e) “Open waters” mean all waters of Lake Michigan or Lake Superior within the jurisdiction of the State of Wisconsin with depths greater than nearshore waters. NR 102.06(3)(3) Rivers, streams, and impounded flowing waters. To protect the fish and aquatic life uses established in s. NR 102.04 (3) on rivers and streams that generally exhibit unidirectional flow, total phosphorus criteria are established as follows: NR 102.06(3)(a)(a) A total phosphorus criterion of 100 ug/L is established for the following rivers or other unidirectional flowing waters: NR 102.06(3)(a)1.1. Apple River from the outlet of the Apple River Flowage in Amery to the St. Croix River, excluding Black Brook Flowage. NR 102.06(3)(a)2.2. Bad River from confluence with the Marengo River within the Bad River Indian Reservation downstream to Lake Superior. NR 102.06(3)(a)3.3. Baraboo River from highway 58 in La Valle to the Wisconsin River. NR 102.06(3)(a)4.4. Bark River from confluence with Scuppernong River near Hebron to the Rock River. NR 102.06(3)(a)5.5. Black River from confluence with Cunningham Creek near Neillsville to Mississippi River, excluding Lake Arbutus. NR 102.06(3)(a)6.6. Brule River from state highway 55 in Forest County downstream to Menominee River. NR 102.06(3)(a)7.7. Buffalo River from confluence with Harvey Creek near Mondovi to Mississippi River. NR 102.06(3)(a)8.8. Chippewa River from Lake Chippewa in Sawyer County to Mississippi River, excluding Holcombe Flowage, Cornell Flowage, Old Abe Lake, Lake Wissota and Dells Pond. NR 102.06(3)(a)9.9. Crawfish River from confluence with Beaver Dam River to Rock River. NR 102.06(3)(a)10.10. East Branch Pecatonica River from confluence with Apple Branch Creek near Argyle to Pecatonica River. NR 102.06(3)(a)11.11. Eau Claire River from confluence with Bridge Creek near Augusta to Chippewa River, excluding Altoona Lake. NR 102.06(3)(a)12.12. Embarrass River from confluence with Pigeon River near Clintonville to Wolf River. NR 102.06(3)(a)13.13. Flambeau River from outlet of Turtle-Flambeau Flowage in Iron County to Chippewa River, excluding Pixley Flowage, Crowley Flowage and Dairyland Flowage. NR 102.06(3)(a)14.14. Fox River from outlet of Lake Puckaway near Princeton to Green Bay, excluding Lake Butte des Morts and Lake Winnebago. NR 102.06(3)(a)15.15. Fox River from confluence with Mukwonago River near Mukwonago to state line, excluding Tichigan Lake. NR 102.06(3)(a)16.16. Grant River from confluence with Rattlesnake Creek near Beetown to Mississippi River. NR 102.06(3)(a)17.17. Jump River from confluence with the North Fork and the South Fork of the Jump rivers in Price County to Holcombe Flowage. NR 102.06(3)(a)18.18. Kickapoo River from confluence with Weister Creek near La Farge to Wisconsin River. NR 102.06(3)(a)19.19. Kinnickinnic River from confluence with Wilson Park Creek in Milwaukee to Milwaukee River. NR 102.06(3)(a)20.20. La Crosse River from confluence with Fish Creek near Bangor to Mississippi River, excluding Neshonoc Lake. NR 102.06(3)(a)21.21. Lemonweir River from outlet of New Lisbon Lake in New Lisbon to Wisconsin River, excluding Decorah Lake. NR 102.06(3)(a)22.22. Little Wolf River from confluence with South Branch Little Wolf River near Royalton to Wolf River. NR 102.06(3)(a)23.23. Manitowoc River from confluence of North Branch and South Branch Manitowoc rivers to the opening at the end of the piers at Lake Michigan. NR 102.06(3)(a)24.24. Menominee River from confluence with Brule River to the opening at the end of the piers at Green Bay. NR 102.06(3)(a)25.25. Menomonee River from confluence with Little Menomonee River to Milwaukee River. NR 102.06(3)(a)26.26. Milwaukee River from confluence with Cedar Creek downstream to the openings of the breakwaters at Lake Michigan. NR 102.06(3)(a)28.28. Namekagon River from outlet of Trego Lake near Trego to St. Croix River. NR 102.06(3)(a)29.29. Oconto River from confluence with Peshtigo Brook to the opening at the end of the piers at Green Bay. NR 102.06(3)(a)30.30. Pecatonica River from confluence with Vinegar Branch near Darlington to state line. NR 102.06(3)(a)31.31. Pelican River from confluence with Slaughterhouse Creek near Rhinelander to Wisconsin River. NR 102.06(3)(a)32.32. Peshtigo River from confluence with Brandywine Creek downstream to Green Bay, excluding Cauldron Falls Flowage and High Falls Flowage. NR 102.06(3)(a)33.33. Pine River from confluence with Popple River in Florence County to Menominee River, excluding Pine River Flowage. NR 102.06(3)(a)34.34. Red Cedar River from confluence with Brill River to Chippewa River, excluding Rice Lake, Tainter Lake and Lake Menomin. NR 102.06(3)(a)35.35. Rock River from outlet of Sinissippi Lake downstream to the state line, excluding Lake Koshkonong. NR 102.06(3)(a)36.36. St. Croix River from confluence with Namekagon River downstream to Mississippi River, excluding Lake St. Croix near Hudson. NR 102.06(3)(a)37.37. St. Louis River from state line to the opening between Minnesota Point and Wisconsin Point at Lake Superior. NR 102.06(3)(a)38.38. Sheboygan River from outlet of Sheboygan Marsh to the opening at the end of the piers at Lake Michigan. NR 102.06(3)(a)39.39. South Fork of Flambeau River from state highway 13 near Fifield to Flambeau River. NR 102.06(3)(a)40.40. Sugar River from outlet of Albany Lake to state line, excluding Decatur Lake. NR 102.06(3)(a)42.42. Trempealeau River from confluence with Pigeon Creek near Whitehall to Mississippi River. NR 102.06(3)(a)43.43. White River from outlet of White River Flowage in Ashland County to Bad River. NR 102.06(3)(a)44.44. Wisconsin River from the Rhinelander Dam to Mississippi River, excluding Lake Alice, Lake Mohawksin, Alexander Lake, Lake Wausau, Mosinee Flowage, Lake Dubay, Wisconsin River Flowage, Biron Flowage, Petenwell Flowage, Castle Rock Flowage and Lake Wisconsin. NR 102.06(3)(a)45.45. Wolf River from confluence with Hunting Creek in Langlade County to Lake Poygan. NR 102.06(3)(b)(b) Except as provided in subs. (6) and (7), all other surface waters generally exhibiting unidirectional flow that are not listed in par. (a) are considered streams and shall meet a total phosphorus criterion of 75 ug/L. NR 102.06(3)(c)(c) An impounded flowing water shall meet the river or stream criterion in par. (a) or (b) that applies to the primary stream or river entering the impounded water. NR 102.06(4)(4) Reservoirs and lakes. Except as provided in subs. (6) and (7), to protect fish and aquatic life uses established in s. NR 102.04 (3) and recreational uses established in s. NR 102.04 (5), total phosphorus criteria are established for reservoirs and lakes as follows: NR 102.06(4)(a)(a) For stratified reservoirs, total phosphorus criterion is 30 ug/L. For reservoirs that are not stratified, total phosphorus criterion is 40 ug/L. NR 102.06(4)(b)(b) For the following lakes that do not exhibit unidirectional flow, the following total phosphorus criteria are established:
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