NR 274.246
NR 274.246
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 standards set forth in
s. NR 274.245.
NR 274.246 History
History: Cr.
Register, January, 1990, No. 421, eff. 1-1-91.
NR 274.25
NR 274.25
Applicability; description of the primary precious metals and mercury subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the production of gold, silver or mercury by primary precious metals and mercury facilities.
NR 274.25 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.252
NR 274.252
Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in
40 CFR 125.30 to
125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT:
-
See PDF for table 
(1) Within the range of 7.5 to 10.0 at all times.
NR 274.252 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.253 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.254
NR 274.254
New source performance standards. Any new source subject to this subchapter shall achieve the following standards:
-
See PDF for table
(1) Within the range of 7.5 to 10.0 at all times.
NR 274.254 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.256
NR 274.256
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 274.253.
NR 274.26
NR 274.26
Applicability; description of the secondary precious metals subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the production of precious metals at secondary precious metals facilities.
NR 274.26 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.261
NR 274.261
Specialized definition. “Combined metals” means the total of gold, platinum and palladium.
NR 274.261 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.262
NR 274.262
Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available. Except as provided in
40 CFR 125.30 to
125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BPT:
-
See PDF for table
(1) This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility, the same allowance applies to each.
(1) Within the range of 7.5 to 10.0 at all times.
NR 274.262 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.263 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.264
NR 274.264
New source performance standards. Any new source subject to this subchapter shall achieve the following standards:
-
See PDF for table
(1) This allowance applies to either acid or alkaline wet air pollution control scrubbers. If both acid and alkaline wet air pollution control scrubbers are present in a particular facility, the same allowance applies to each.
(1) Within the range of 7.5 to 10.0 at all times.
NR 274.264 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.265
NR 274.265
Pretreatment standards for existing sources. Except as provided in
s. NR 211.13, 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 274.263.
NR 274.265 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.266
NR 274.266
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 274.263.
NR 274.266 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.27
NR 274.27
Applicability; description of the primary rare earth metals subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from the production of rare earth metals and mischmetal by primary rare earth metals facilities which process rare earth metal oxides, chlorides and fluorides.
NR 274.27 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.271
NR 274.271
Specialized definitions. The following definitions apply to the terms used in this subchapter:
NR 274.271(1)
(1) “Rare earth metals” means the elements scandium, yttrium and lanthanum to lutetium, inclusive.
NR 274.271(2)
(2) “Mischmetal” means a rare earth metal alloy comprised of the natural mixture of rare earths to 94% to 99% with the remainder of the alloy including traces of other elements and 1% to 2% iron.
NR 274.271 History
History: Cr.
Register, March, 1991, No. 423, eff. 4-1-91.
NR 274.274
NR 274.274
New source performance standards. Any new source subject to this subchapter shall achieve the following standards:
-
See PDF for table
(1) Within the range of 7.5 to 10.0 at all times.
