NR 261.12(1)(b)(b) For facilities with cyanide treatment, and upon approval of the department, an amenable cyanide limit (Cyanide, A) of 0.86 milligrams per liter (1 day max.) and 0.32 milligrams per liter (monthly avg.) may apply in place of the total cyanide limit specified in Table 1. NR 261.12(1)(c)(c) No discharger subject to the provisions of this subsection may augment the use of process wastewater or otherwise dilute the wastewater as a partial or total substitute for adequate treatment to achieve compliance with this standard. NR 261.12(2)(a)(a) Except as provided in par. (b) and subch. IV of ch. NR 220, any existing point source subject to this subchapter shall, no later than July 1, 1984, achieve the following effluent limitations attainable by applying the best available technology economically achievable: Table 2
BAT Effluent Limitations (mg/l)
NR 261.12 Note1All metals and cyanide shall be determined in “total” form.
NR 261.12(2)(b)(b) For facilities with cyanide treatment, and upon approval of the department, an amenable cyanide limit (Cyanide, A) of 0.86 milligrams per liter (1 day max.) and 0.32 milligrams per liter (monthly avg.) may apply in place of the total cyanide limit specified in Table 2. NR 261.12(2)(c)(c) No discharger subject to the provisions of this subsection may augment the use of process wastewater or otherwise dilute the wastewater as a partial or total substitute for adequate treatment to achieve compliance with this standard. NR 261.12(3)(a)(a) Except as provided in par. (b) and subch. IV of ch. NR 220, any new source subject to this subchapter shall, at the commencement of discharge, achieve the following performance standards: Table 3
NSPS (mg/l)
NR 261.12 Note1All metals and cyanide shall be determined in “total” form.
NR 261.12(3)(b)(b) For facilities with cyanide treatment, and upon approval of the department, an amenable cyanide limit (Cyanide, A) of 0.86 milligrams per liter (1 day max.) and 0.32 milligrams per liter (monthly avg.) may apply in place of the total cyanide limit specified in Table 3. NR 261.12(3)(c)(c) No discharger subject to the provisions of this subsection may augment the use of process wastewater or otherwise dilute the wastewater as a partial or total substitute for adequate treatment to achieve compliance with this standard. NR 261.12 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86; correction in (1) (a), (2) (a), (3) (a) made under s. 13.92 (4) (b) 7, Stats., Register April 2018 No. 748. NR 261.13(1)(a)(a) In place of monitoring for TTO, the department may allow dischargers to make the following certification statement: “Based on my inquiry of the person or persons directly responsible for managing compliance with the permit limitation for total toxic organics (TTO), I certify that to the best of my knowledge and belief, no dumping of concentrated toxic organics into the wastewaters has occurred since filing of the last discharge monitoring report. I further certify that this facility is implementing the toxic organic management plan submitted to the Department of Natural Resources.”
NR 261.13(1)(b)(b) In requesting the certification alternative, a discharger shall submit a toxic organic management plan. The plan shall specify to the satisfaction of the department, the toxic organic compounds used; the method of disposal used instead of dumping, such as reclamation, contract hauling, or incineration; and procedures for ensuring that toxic organics do not routinely spill or leak into the wastewater. The department shall incorporate the plan as a provision of the permit. NR 261.13(1)(c)(c) If monitoring is necessary to measure compliance with the TTO standard, the industrial discharger need analyze only for those pollutants reasonably expected to be present or those pollutants specified in the discharge permit. NR 261.13(2)(2) Cyanide. Self-monitoring for cyanide shall be conducted after cyanide treatment but before dilution with other wastestreams. Alternatively, samples may be taken of the final effluent if the facility limitations are adjusted based on the dilution ratio of the cyanide wastestream flow to the effluent flow. NR 261.13 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86. NR 261.20NR 261.20 Applicability. The provisions of this subchapter are applicable to discharges of wastewater from the metal finishing processes as listed in s. NR 261.02 (1) into publicly owned treatment works. NR 261.20 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86. NR 261.21NR 261.21 Compliance dates. Discharge of pollutants from facilities subject to the provisions of this subchapter may not exceed as appropriate: NR 261.21(1)(1) By February 15, 1986 for pretreatment standards for existing sources (PSES); NR 261.21(2)(2) At the commencement of discharge for pretreatment standards for new sources (PSNS). NR 261.21 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86. NR 261.22(1)(1) Pretreatment standards for existing sources (pses). NR 261.22(1)(a)(a) Except as provided in par. (b), any existing source subject to this subchapter shall comply with ch. NR 211 and achieve, by February 15, 1986, the following pretreatment standards for existing sources: Table 4
PSES (mg/l)
NR 261.22 Note1All metals and cyanide shall be determined in “total” form.
NR 261.22 Note2Metal finishing facilities which are covered by ch. NR 254 shall comply with the 4.57 mg/l TTO limitation by July 10, 1985. NR 261.22(1)(b)(b) For facilities with cyanide treatment, and upon approval of the control authority, an amenable cyanide limit (Cyanide, A) of 0.86 milligrams per liter (1 day max.) and 0.32 milligrams per liter (monthly avg.) may apply in place of the total cyanide limit specified in Table 4. NR 261.22(1)(c)(c) No discharger subject to the provisions of this subchapter may augment the use of process wastewater, or otherwise dilute the wastewater, as a partial or total substitute for adequate treatment to achieve compliance with this standard. NR 261.22(2)(2) Pretreatment standards for new sources (psns). NR 261.22(2)(a)(a) Except as provided in par. (b), any new source subject to this subchapter shall comply with ch. NR 211 and achieve, at the commencement of discharge, the following pretreatment standards for new sources: Table 5
PSNS (mg/l)
NR 261.22 Note1All metals and cyanide shall be determined in “total” form.
NR 261.22(2)(b)(b) For facilities with cyanide treatment, and upon approval of the control authority, an amenable cyanide limit (Cyanide, A) of 0.86 milligrams per liter (1 day max.) and 0.32 milligrams per liter (monthly avg.) may apply in place of the total cyanide limit specified in Table 5. NR 261.22(2)(c)(c) No discharger subject to the provisions of this subchapter may augment the use of process wastewater, or otherwise dilute the wastewater, as a partial or total substitute for adequate treatment to achieve compliance with this standard. NR 261.22 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86. NR 261.23(1)(a)(a) In place of monitoring for TTO, the control authority may allow dischargers to make the following certificationstatement: “Based on my inquiry of the person or persons directly responsible for managing compliance with the pretreatment standard for total toxic organics (TTO), I certify that, to the best of my knowledge and belief, no dumping of concentrated toxic organics into the wastewaters has occurred since filing the last discharge monitoring report. I further certify that this facility is implementing the toxic organic plan submitted to the control authority.”
NR 261.23(1)(b)(b) In requesting the certification alternative, a discharger shall submit a toxic organic management plan. The plan shall specify to the satisfaction of the control authority, the toxic organic compounds used; the method of disposal used instead of dumping, such as reclamation, contract hauling, or incineration; and procedures for ensuring that toxic organics do not routinely spill or leak into the wastewater. NR 261.23(1)(c)(c) If monitoring is necessary to measure compliance with the TTO standard, the industrial discharger need analyze only for those pollutants reasonably expected to be present. NR 261.23(1)(d)(d) A new or existing source submitting a certification pursuant to pars. (a) to (c) shall implement the toxic organic management plan approved by the control authority. NR 261.23(2)(2) Cyanide. Self-monitoring for cyanide shall be conducted after cyanide treatment but before dilution with other wastestreams. Alternatively, samples may be taken of the final effluent if the facility limitations are adjusted based on the dilution ratio of the cyanide wastestream flow to the effluent flow. NR 261.23 HistoryHistory: Cr. Register, October, 1986, No. 370, eff. 11-1-86.
