Wisconsin Administrative Code

NR 106.01 Purpose. One purpose of this chapter is to specify how the department will calculate water quality based effluent limitations under s. 283.13 (5), Stats., for toxic and organoleptic substances and whole effluent toxicity. The other purpose of this chapter is to specify …

NR 106.02 Applicability. The provisions of this chapter are applicable to point sources which discharge wastewater containing toxic or organoleptic substances to surface waters of the state. History: Cr. Register, February, 1989, No. 398, eff. 3-1-89.

NR 106.03 Definitions. The following definitions are applicable to terms used in this chapter. (1g) “AMZ” means acute mixing zone concentration based on presence of a zone of initial dilution under s. NR 106.06 (3) (c). (1r) “Bioaccumulative chemical of concern” or “BCC” means an…

NR 106.04 General. (1) The department shall establish water quality-based effluent limitations whenever categorical effluent limits required under s. 283.13, Stats., are less stringent than necessary to achieve applicable water quality standards specified in chs. NR 102 to 105. W…

NR 106.05 Determination of the necessity for water quality based effluent limitations for toxic and organoleptic substances. (1) (a) General. The department shall establish water quality based effluent limitations for point source dischargers whenever the discharges from those po…

NR 106.06 Calculation of water quality based effluent limitations for toxic and organoleptic substances. (1) BASIS FOR LIMITATIONS. (a) The department shall establish water quality based effluent limitations for point source dischargers whenever such limitations are necessary, as…

NR 106.07 Application of and compliance with water quality based effluent limitations in permits. (1) PERMIT MONITORING FREQUENCY. The department shall determine on a case-by-case basis the monitoring frequency to be required for each water quality based effluent limitation in a …

NR 106.08 Determination of the necessity for whole effluent toxicity testing requirements and limitations. (1) GENERAL. The department shall establish whole effluent toxicity testing requirements and limitations whenever necessary to meet applicable water quality standards as spe…

NR 106.09 Whole effluent toxicity data evaluation and limitations. (1) DATA EVALUATION. Data evaluation procedures are specified in the whole effluent toxicity test methods specified in s. NR 219.04, Table A. In the event of a WET test failure, facility specific requirements shal…

NR 106.10 Noncontact cooling water additives. The department shall establish water quality based effluent limitations for toxic and organoleptic substances in noncontact cooling water discharges as follows: (1) For toxic and organoleptic substances commonly added by suppliers of …

NR 106.11 Multiple discharges. Whenever the department determines that more than one discharge may be affecting the water quality of the same receiving water for one or more substances, the provisions of this chapter shall be used to calculate the combined allowable load from the…

NR 106.115 Additivity of dioxins and furans.

NR 106.117 Schedules of compliance. NR 106.14 Analytical methods and laboratory requirements. Subchapter VI — Alternative Effluent Limitations for Temperature NR 106.70 Purpose. NR 106.71 Definitions. NR 106.72 Application for alternative effluent limitations for temperature. NR …

NR 106.14 Analytical methods and laboratory requirements. (1) Methods used for analysis of samples shall be those specified in ch. NR 219 unless alternative methods are specified in the WPDES discharge permits. Where more than one approved analytical method for a pollutant exists…

NR 106.145 Mercury regulation. NR 106.15 Limitations for mercury. Subchapter IV — Effluent Limitations for Ammonia Discharges NR 106.30 Applicability. NR 106.31 Definitions. NR 106.32 Calculation of water quality-based effluent limitations for ammonia. NR 106.33 Determination of …

NR 106.15 Limitations for mercury. Regardless of the effluent limitations determined under this chapter, the discharge of organic mercury compounds, inorganic mercury compounds, and metallic mercury shall not exceed the requirements in s. 281.17 (7), Stats., and ch. NR 100. Histo…

NR 106.30 Applicability. The provisions of this subchapter are applicable to point sources that discharge wastewater containing ammonia to surface waters of the state. This subchapter first applies to permits issued or reissued after March 1, 2004. NR 106.32 Note: Any discharges …

NR 106.31 Definitions. In this subchapter: (1) “Acute criterion” or “ATC” has the meaning in s. NR 105.03 (2) (2) “Chronic criterion” or “CTC” has the meaning in s. NR 105.03 (15) (3) “Early life stages” or “ELS” means the life stages of fish that include the pre-hatch embryonic …

NR 106.32 Calculation of water quality-based effluent limitations for ammonia. (1) BASIS FOR LIMITATIONS. (a) The department shall establish water quality based effluent limitations for point source dischargers of ammonia whenever the limitations are necessary, as determined by a…

NR 106.33 Determination of the necessity for water quality-based effluent limits for ammonia. (1) REASONABLE POTENTIAL. (a) For a permitted discharge that is not already subject to an ammonia water quality-based effluent limitation, the procedures specified in s. NR 106.05 shall …

NR 106.36 Alternative whole effluent toxicity monitoring for certain discharges of ammonia. (1) In addition to water quality based effluent limitations for ammonia, the department may establish whole effluent toxicity testing requirements and limitations pursuant to ss. NR 106.08…

NR 106.37 Schedules of compliance. (1) The department shall determine and specify a reasonable compliance schedule in the permit if the permittee is unable to meet the ammonia effluent limits determined according to this subchapter at the time of permit reissuance. The department…

NR 106.50 Purpose. The purpose of this subchapter is to specify how the department will calculate water quality-based effluent limitations for temperature under s. 283.13 (5), Stats., and to specify how the department will determine when the limitations will be included in Wiscon…

NR 106.51 Applicability. This subchapter applies to point sources that discharge cooling water, non-contact cooling water, or other wastewater to surface waters of the state if the discharge contains an associated heat load or is elevated in temperature relative to the ambient te…

NR 106.52 Definitions. In this subchapter, the following definitions are applicable to terms used: (1) “Ambient temperature” means the typical existing temperature of a surface water outside the direct influence of any point source discharge, which may include daily and seasonal …

NR 106.53 Parameters used to establish water quality-based effluent limitations for temperature. (1) RECEIVING WATER FLOW RATE (QS). The value of receiving water flow rate (Qs) used to determine effluent limitations for discharges to flowing waters shall be as follows: (a) Qs sha…

NR 106.54 Representative effluent temperature data. (1) The representative daily maximum effluent temperature is the highest effluent temperature known or expected to occur on any day under normal operating conditions at the time of permit issuance. Representative daily maximum e…

NR 106.55 Determination of water quality-based effluent limitations for temperature in WPDES permits. (1) GENERAL. The department shall determine water qualitybased effluent limitations for temperature to attain and maintain water quality standards and criteria specified in or de…

NR 106.56 Establishment of water quality-based effluent limitations for temperature in WPDES permits. (1) GENERAL. The department shall use the methods in this section to determine the need to establish water quality-based effluent temperature limitations in a permit. (2) REASONA…

NR 106.57 Effluent limitations for multiple thermal discharges. Whenever the department determines that more than one thermal discharge may be adversely affecting the water quality of the same receiving water, the provisions of both this subchapter and s. NR 106.11 shall be used …

NR 106.58 Effluent limitations based on water quality models. (1) At the time of permit application, a permittee may submit the results of scientifically defensible technical approaches, such as calibrated models and verified mathematical water quality models developed or adapted…

NR 106.59 Effluent limitations for temperature for permits issued to publicly or privately owned domestic sewage treatment works. (1) APPLICABILITY. This section applies to specific outfalls from permittees with discharges subject to ch. NR 210. (2) DEFINITIONS. In this section, …

NR 106.60 Effluent limitations for temperature for discharges from new facilities. Except as provided in subch. VI, new facilities issued a WPDES permit after October 1, 2010, shall be designed to meet applicable water quality-based effluent temperature limitations, as determined…

NR 106.61 General permit. (1) A general permit issued by the department that contains effluent temperature limitations and monitoring requirements for discharges of non-contact cooling water, non-contact condensate, boiler water blowdown, and boiler bleedoff directly to surface w…

NR 106.62 Compliance schedules. The permittee shall attain compliance with the effluent limitations as soon as reasonably possible, but no later than the expiration date of the permit. When a permit is issued or reissued with effluent temperature limitations established using the…

NR 106.70 Purpose. The purpose of this subchapter is to establish procedures for the determination by the department of alternative effluent limitations for temperature as authorized under s. 283.17, Stats. An alternative effluent limitation for temperature may be established by …

NR 106.71 Definitions. The definitions in ss. NR 205.03 and 205.04 apply to the terms used in this subchapter. In addi- the chapter was last published. 35 DEPARTMENT OF NATURAL RESOURCES tion, the following definitions apply to the terms used in this subchapter: (1) “Alternative …

NR 106.72 Application for alternative effluent limitations for temperature. An application for an alternative effluent limitation may be submitted to the department by an owner or operator of a point source subject to effluent limitations determined under subch. V. (1) TIMING. Th…

NR 106.73 Identification of representative, important species. Any applicant for an alternative effluent limitation for temperature shall submit to the department a proposed list of representative important species prior to submitting an application and undertaking a demonstratio…

NR 106.74 Determination of alternative effluent limitations for temperature. (1) NEW DISCHARGES. Alternative effluent limitations for temperature may be established by the department for a new discharge if the permittee demonstrates that the discharge, considering the cumulative …

NR 106.75 Compliance schedules. Whenever the department issues or modifies a permit with alternative effluent limitations for temperature established using the procedures in this subchapter, the permit may contain a compliance schedule consistent with the provisions in s. NR 106.…

NR 106.76 Public notice. The public notice of intent to issue, reissue, or modify a permit with alternative effluent limitations established under this subchapter shall contain all of the following: (1) The effluent temperature limitations that are calculated using the procedures…

NR 106.77 Application of the variance process in s. 283.15, Stats. Whenever a permittee has been granted alternative effluent limitations for temperature under this chapter, the procedures of s. 283.15, Stats., are not applicable. Subchapter VII — Effluent Limitations for Chlorid…

NR 106.80 Purpose. The purpose of this subchapter is to specify how the department will regulate the discharge of chloride to surface waters of the state. Nothing in this subchapter shall be construed to prevent or prohibit the use, sale, rental, installation, and service of ion …

NR 106.81 Applicability. The provisions of this subchapter are applicable to point sources which discharge wastewater containing chloride to surface waters of the state. The provisions of this subchapter are not applicable to discharges of storm water run-off regulated by a storm…

NR 106.82 Definitions. In this subchapter: (1) “Calculated limitation” means a chloride water qualitybased effluent limitation. (2) “Consistently meet” means that 95% of the representative effluent data are less than the calculated limitation. (3) “DIR” means demand initiated reg…

NR 106.83 Regulation of chloride discharges. (1) CHLORIDE EFFLUENT LIMITATIONS. The department shall evaluate the need to establish effluent limitations for chloride whenever representative effluent data indicate that the discharge from a point source contains chloride. If the de…

NR 106.84 Compliance with Wisconsin water quality antidegradation rules when reissuing a permit. Chapter NR 207 does not apply in those instances in which a reissued permit includes effluent limitations for chloride which represent a lowering of concentration as compared to the i…

NR 106.85 Determination of the necessity for water quality-based effluent limitations. (1) The department shall determine the need for chloride water quality-based effluent limitations for point source discharges whenever the discharges from the point sources contain chloride at …

NR 106.86 Monitoring. Notwithstanding any other section in this subchapter, the department shall determine on a caseby-case basis the chloride monitoring frequency to be required in the permit. History: Cr. Register, January, 2000, No. 529, eff. 2-1-00.