# Wis. Admin. Code NR § 106.10: Noncontact cooling water additives > Wisconsin · Regulations · In force URL: https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_10 ## Section - **Citation:** Wis. Admin. Code NR § 106.10 - **Heading:** Noncontact cooling water additives - **Jurisdiction:** Wisconsin - **Kind:** Regulations - **Status:** In force - **Text as of:** August 14, 2026 - **Source:** Compiled text - **Location:** Wisconsin Administrative Code / NR / Chapter NR 106 / § NR 106.10 ## Text Noncontact cooling water additives. 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 drinking water systems and present in the noncontact cooling water, a water quality based effluent limitation calculated under s. NR 106.06 that is based on the applicable water quality criterion or secondary value shall be included in the permit unless the permittee demonstrates at least one of the following: (a) The concentration of the substance in the intake water is dissipated within the system that supplies the intake water to the permittee and is consistently less than the water quality based effluent limitation. (b) An effluent limitation is not necessary as determined using the reasonable potential procedures in s. NR 106.05 . (c) Prior to reaching the receiving water, the substance dissipates or is removed to a level that is below the water quality based effluent limitation. (2) For other toxic and organoleptic substances intentionally added to noncontact cooling water by the permittee, the department shall follow the procedures specified in ss. NR 106.05 and 106.06 to calculate a water quality based effluent limitation and determine whether the limitation is necessary in the permit. If there is no water quality criterion for an additive and there are potential water quality impacts from the additive, the department shall establish a secondary value for the additive in accordance with ch. NR 105 and calculate a limitation based on that value. All of the following requirements apply to the use and discharge of additives: (a) A permittee shall obtain written approval from the department prior to use of the additive. for an additive and there are potential water quality impacts from the additive, the department shall establish a secondary value for the additive in accordance with ch. NR 105 and calculate a limitation based on that value. All of the following requirements apply to the use and discharge of additives: (a) A permittee shall obtain written approval from the department prior to use of the additive. (b) A permittee shall provide the department with dosage information and safety data sheets and toxicological data, as requested by the department to meet minimum data requirements specified in ss. NR 105.05 (4) and 105.06 (6) for each additive for which approval is sought. (c) Prior to increasing the usage of an additive in amounts greater than authorized by the department, a permittee shall get written approval from the department for the increased usage. (d) After reissuance, if a permittee wants to use a new additive not previously approved by the department, the permittee shall get written approval from the department prior to use of the additive. (e) A permittee may only use additives in accordance with the conditions of the department approval and any applicable permit terms. If the department does not approve use of the additive, the additive may not be discharged. ## Nearby sections - [Wis. Admin. Code NR § 106.01 Purpose](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_01.md) - [Wis. Admin. Code NR § 106.02 Applicability](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_02.md) - [Wis. Admin. Code NR § 106.03 Definitions](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_03.md) - [Wis. Admin. Code NR § 106.04 General](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_04.md) - [Wis. Admin. Code NR § 106.05 Determination of the necessity for water quality based effluent limitations for toxic and organoleptic substances](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_05.md) - [Wis. Admin. Code NR § 106.06 Calculation of water quality based effluent limitations for toxic and organoleptic substances](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_06.md) - [Wis. Admin. Code NR § 106.07 Application of and compliance with water quality based effluent limitations in permits](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_07.md) - [Wis. Admin. Code NR § 106.08 Determination of the necessity for whole effluent toxicity testing requirements and limitations](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_08.md) - [Wis. Admin. Code NR § 106.09 Whole effluent toxicity data evaluation and limitations](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_09.md) - [Wis. Admin. Code NR § 106.10 Noncontact cooling water additives](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_10.md) - [Wis. Admin. Code NR § 106.11 Multiple discharges](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_11.md) - [Wis. Admin. Code NR § 106.14 Analytical methods and laboratory requirements](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_14.md) - [Wis. Admin. Code NR § 106.15 Limitations for mercury](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_15.md) - [Wis. Admin. Code NR § 106.30 Applicability](https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_30.md) --- Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_WI_ADC_NR_106_10. Check the current official text before relying on it. Not legal advice.