Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 812 - Well Construction And Pump Installation › Subchapter III - Requirements for New Pump Installations and Water Treatment › Section NR 812.37 - Water treatment

Current through June 24, 2024
(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.
(2) GENERAL STANDARDS.
(a) Water treatment devices installed in a
				  water system shall have a plumbing product approval in accordance with chs.
				  SPS 382 and 384.
(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.
(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.
(d) A water treatment
				  device shall be installed by one of the following:
1. A plumber licensed under s.
				  145.06,
				  Stats., if the device is installed downstream of the pressure tank or building
				  control valve.
2. A licensed pump
				  installer if the device is installed upstream of the pressure tank.
3. A property owner who is exempt from the
				  requirement for a plumbing license under s.
				  145.06(4)
				  (a), Stats.
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."
(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:
1. Constructing a new well.
2. Reconstructing an existing well.
3. Connecting to an alternative water
				  supply.
(f) The
				  installation of a water treatment device shall supplement and not replace
				  proper well location, construction and water supply protection.
(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.
(h)
				  Discharge or disposal of contaminated wastewater, filter media, or gases shall
				  comply with applicable State and Federal regulations.
(i) All chemicals used for addition to a
				  water system shall be approved for use under s. NR 812.091.
(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.
(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.