NR 812.36(3)(b)5. 5. ‘Conduit for electrical cable.’ Conduit for electrical wiring shall be protected and sealed to comply with s. NR 812.30 (5). If the conduit extends from the well seal to a basement, the end of the conduit shall be sealed with a watertight, vermin-proof seal.

NR 812.36 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (1), Register, September, 1994, No. 465, eff. 10-1-94; correction in (2) (d) 1. made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2000, No. 533; correction in (2) (d) 1. made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 13-099: cr. (3), Figures 45A, 45B Register September 2014 No. 705, eff. 10-1-14; CR 18-095: am. (1), (2) (intro.), (b) 1., (c) 5., (d) 2., (3) (b) (intro.), 1., 5., r. (3) (b) 6. Register June 2020 No. 774, eff. 7-1-20; correction in (2) (intro.) made under s. 35.17, Stats., Register February 2021 No. 782.

NR 812.37 NR 812.37 Water treatment.

NR 812.37(1) (1) Scope. This section applies to treatment of water for potable use in a private or non-community water system except for the disinfection, batch chlorination, and acidification prescribed in ss. NR 812.12, 812.22, and 812.41.

NR 812.37(2) (2) General standards.

NR 812.37(2)(a) (a) Water treatment devices installed in a water system shall have a plumbing product approval in accordance with chs. SPS 382 and 384.

NR 812.37(2)(b) (b) A water supply requiring approval under sub. (3) shall produce water free from coliform bacteria prior to treatment, unless the department determines that a water supply free from coliform bacteria is not available.

NR 812.37(2)(c) (c) Water treatment devices shall be installed in accordance with the manufacturer’s printed instructions, chs. SPS 382 and 384, and, if specified, department written installation approval conditions. If there is a conflict between the manufacturer’s instructions and the code requirements or approval conditions, the code requirements and approval conditions shall take precedence.

NR 812.37(2)(d) (d) A water treatment device shall be installed by one of the following:

NR 812.37(2)(d)1. 1. A plumber licensed under s. 145.06, Stats., if the device is installed downstream of the pressure tank or building control valve.

NR 812.37(2)(d)2. 2. A licensed pump installer if the device is installed upstream of the pressure tank.

NR 812.37(2)(d)3. 3. A property owner who is exempt from the requirement for a plumbing license under s. 145.06 (4) (a), Stats.

NR 812.37 Note Note: Section 145.06 (4) (a), Stats., provides an exemption from the requirement for a plumbing license for “plumbing work done by a property owner in a one-family building owned and occupied by him or her as his or her home or farm building, except where such license is required by local ordinance.”

NR 812.37(2)(e) (e) Treatment for control of regulated contaminants in a non-community water system shall be considered only after the system owner demonstrates that none of the following alternatives are available or feasible:

NR 812.37(2)(e)1. 1. Constructing a new well.

NR 812.37(2)(e)2. 2. Reconstructing an existing well.

NR 812.37(2)(e)3. 3. Connecting to an alternative water supply.

NR 812.37(2)(f) (f) The installation of a water treatment device shall supplement and not replace proper well location, construction and water supply protection.

NR 812.37(2)(g) (g) Unless otherwise stated in the department’s installation approval, treatment devices requiring approval under sub. (3) shall be designed and installed to treat all water provided by the water system. The department’s installation approval may exclude treatment of water being supplied for certain uses including outside hose bibs, fire protection systems, boilers used for space heating, turf sprinkler systems and non-food process water.

NR 812.37(2)(h) (h) Discharge or disposal of contaminated wastewater, filter media, or gases shall comply with applicable State and Federal regulations.

NR 812.37(2)(i) (i) All chemicals used for addition to a water system shall be approved for use under s. NR 812.091.

NR 812.37(2)(j) (j) All products in contact with potable water shall be certified for compliance with NSF/ANSI Standard 61 or shall be approved for use under s. NR 812.091.

NR 812.37(2)(k) (k) Water treatment devices may not be installed in a private or non-community water system if the department has required the well to be filled and sealed under s. NR 812.26 (4) or has required use of the system to be discontinued.

NR 812.37(3) (3) Installation approval required. Department installation approval shall be obtained prior to installation if any of the following conditions apply:

NR 812.37(3)(a) (a) The water treatment device is installed for the purpose of controlling bacteria in a non-community water system.

NR 812.37(3)(b) (b) The water treatment device will be installed on or within the well or pressure system, or when water treatment occurs within the well.

NR 812.37(3)(d) (d) The water treatment device or treatment system will control corrosion or will control, remove or prevent contaminant levels in excess of primary drinking water standards as specified under ch. NR 809, health advisories or action levels in a non-community water system.

NR 812.37(3)(g) (g) Fluoride is added to a water system.

NR 812.37(3)(h) (h) The installation of a water treatment plant facility.