NR 273.023 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90. NR 273.024NR 273.024 New source performance standards. Any new source subject to this subchapter shall achieve the following standards: NR 273.024 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90. NR 273.025NR 273.025 Pretreatment standards for existing sources. Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the limitations set forth in s. NR 273.023. NR 273.025 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90. NR 273.026NR 273.026 Pretreatment standards for new sources. Except as provided in s. NR 211.13, any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the limitations set forth in s. NR 273.023. NR 273.026 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90. NR 273.03NR 273.03 Applicability; description of the nickel-cobalt subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from nickel-cobalt forming. NR 273.03 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90. NR 273.031(1)(1) Any facility subject to this subchapter may not discharge process wastewater pollutants from the following sources: