NR 257.04(1)(a)
(a) The first wastewater sample of the calendar year has been analyzed and found to contain less than 0.07 mg/1.
NR 257.04(1)(b)
(b) The owner or operator of the aluminum forming facility certifies in writing to the department or control authority that cyanide is not and will not be used in the aluminum forming process.
NR 257.04(2)
(2) As an alternative pretreatment monitoring procedure, the POTW user may measure and limit oil and grease to the levels shown in the pretreatment standards in lieu of measuring and regulating TTO.
NR 257.04(3)
(3) Compliance with the maximum monthly average effluent limitations and pretreatment standards is required regardless of the number of samples analyzed and averaged. The maximum monthly average effluent limitations and pretreatment standards shall be the basis for monthly average discharge limits in direct discharge permits and for pretreatment standards.
NR 257.04 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.05(1)
(1) Any existing source subject to this chapter which discharges to waters of the state shall achieve;
NR 257.05(1)(a)
(a) The effluent limitations representing BPT by July 1, 1977; and
NR 257.05(1)(b)
(b) The effluent limitations representing BAT by July 1, 1984.
NR 257.05(2)
(2) Any new source subject to this chapter which discharges to waters of the state shall achieve NSPS at the commencement of discharge.
NR 257.05(3)
(3) Any existing source subject to this chapter which discharges process wastewater pollutants to a POTW shall achieve PSES by October 24, 1986.
NR 257.05(4)
(4) Any new source subject to this chapter which discharges process wastewater pollutants to a POTW shall achieve PSNS at the commencement of discharge.
NR 257.05 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.06
NR 257.06 Removal allowances for pretreatment standards. Removal allowances for pretreatment standards pursuant to
s. NR 211.13 may be granted for the toxic metals limited by this chapter when the toxic metals are used as indicator pollutants.
NR 257.06 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.10
NR 257.10 Applicability; description of the rolling with neat oils subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from core and ancillary rolling with neat oils operations.
NR 257.10 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.11
NR 257.11 Specialized definitions. In addition to the definitions set forth in
s. NR 257.03, the following definitions apply to the terms used in this subchapter:
NR 257.11(1)
(1) “Ancillary operation” means any operation which is not a core operation but which is performed on-site following or preceding the rolling operation, such as continuous rod casting, continuous sheet casting, solution heat treatment, and cleaning or etching.
NR 257.11(2)
(2) “Core operation” means rolling using neat oils, roll grinding, sawing, annealing, stationary casting, homogenizing, artificial aging, degreasing, and stamping.
NR 257.11 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.12
NR 257.12 Effluent limitations representing the degree of effluent reduction attainable by 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 the application of BPT:
-
See PDF for table 
1 Within the range of 7.0 to 10 at all times.
NR 257.12 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.13 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.14
NR 257.14 New source performance standards. Any new source subject to this subchapter shall achieve the following performance standards:
-
See PDF for table
1Within the range of 7.0 to 10 at all times.
NR 257.14 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.15 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.16 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.20
NR 257.20 Applicability; description of the rolling with emulsions subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from core and ancillary rolling with emulsions operations.
NR 257.20 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.21
NR 257.21 Specialized definitions. In addition to the definitions set forth in
s. NR 257.03, the following definitions apply to the terms used in this subchapter:
NR 257.21(1)
(1) “Ancillary operation” means any operation which is not a core operation but which is performed on-site following or preceding the rolling operation, such as direct chill casting, solution heat treatment, cleaning or etching, and degassing.
NR 257.21(2)
(2) “Core operation” means rolling using emulsions, roll grinding, stationary casting, homogenizing, artificial aging, annealing, and sawing.
NR 257.21 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.22
NR 257.22 Effluent limitations representing the degree of effluent reduction attainable by 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 the application of BPT:
-
See PDF for table
1 The pH shall be maintained within the range of 7.0 to 10.0 at all times, except for those situations when this waste stream is discharged separately and without commingling with any other wastewater, in which case the pH shall be within the range of 6.0 to 10.0 at all times.
-
See PDF for table
1Within the range of 7.0 to 10 at all times.
NR 257.22 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.23 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.24
NR 257.24 New source performance standards. Any new source subject to this subchapter shall achieve the following performance standards:
-
See PDF for table
1 The pH shall be maintained within the range of 7.0 to 10.0 at all times, except for those situations when this waste stream is discharged separately and without commingling with any other wastewater, in which case the pH shall be within the range of 6.0 to 10.0 at all times.
-
See PDF for table
1 Within the range of 7.0 to 10 at all times.
NR 257.24 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.25 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.26 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.30
NR 257.30 Applicability; description of the extrusion subcategory. This subchapter applies to the discharge of pollutants to waters of the state and the introduction of pollutants into POTWs from core and ancillary extrusion operations.
NR 257.30 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.31
NR 257.31 Specialized definitions. In addition to the definitions set forth in
s. NR 257.03, the following definitions apply to the terms used in this subchapter:
NR 257.31(1)
(1) “Ancillary operation” means any operation which is not a core operation but which is performed on-site following or preceding the extrusion operation, such as direct chill casting, press or solution heat treatment, cleaning or etching, degassing, and extrusion press hydraulic fluid leakage.
NR 257.31(2)
(2) “Core operation” means extrusion die cleaning, any wet scrubber associated with the die cleaning, dummy block cooling, stationary casting, artificial aging, annealing, degreasing, and sawing.
NR 257.31(3)
(3) “Extrusion die cleaning” means an operation in which the steel dies used for aluminum extrusion are cleaned by dipping the dies into a concentrated caustic bath to dissolve the aluminum and then rinsing the dies with water.
NR 257.31 History
History: Cr.
Register, November, 1989, No. 407, eff. 12-1-89.
NR 257.32
NR 257.32 Effluent limitations representing the degree of effluent reduction attainable by 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 the application of BPT:
-
See PDF for table
1 The pH shall be maintained within the range of 7.0 to 10.0 at all times, except for those situations when this waste stream is discharged separately and without commingling with any other wastewater, in which case the pH shall be within the range of 6.0 to 10.0 at all times.
-
See PDF for table
