NR 812.24   Dug type well design and construction.
NR 812.25   Springs.
NR 812.26   Well and drillhole filling and sealing.
Subchapter III — Requirements for New Pump Installations and Water Treatment
NR 812.27   Pump installer requirements.
NR 812.28   Pump installation equipment and supply pipe.
NR 812.29   Height of finished well.
NR 812.30   Vermin-proof well caps and seals.
NR 812.31   Pitless adapters and pitless units.
NR 812.32   Pumps.
NR 812.33   Water storage vessels.
NR 812.34   Sample faucets.
NR 812.35   Yard hydrants.
NR 812.36   Pits.
NR 812.37   Water treatment.
NR 812.38   Injection of fertilizers or pesticides for agricultural purposes.
NR 812.39   High capacity well water level and water usage measurement.
NR 812.40   Above ground pumphouses.
NR 812.41   Disinfection, flushing and sampling.
Subchapter IV — Standards for Existing Installations
NR 812.42   Criteria for evaluation.
Subchapter V — Variances
NR 812.43   Variances.
Subchapter VI — Property Transfer Well Inspections.
NR 812.44   Property Transfer Well Inspections.
Subchapter VII — Citations
NR 812.45   Citations.
Ch. NR 812 Note Note: Chapter NR 112 as it existed on September 30, 1975 was repealed and a new Chapter NR 112 was created effective October 1, 1975. Chapter NR 112 as it existed on January 31, 1991 was repealed and a new Chapter NR 112 was created effective February 1, 1991; Chapter NR 112 was renumbered Chapter NR 812 under s. 13.93 (2m) (b) 1., Stats., Register, September, 1994, No. 465.
subch. I of ch. NR 812 Subchapter I — General
NR 812.01 NR 812.01Purpose.
NR 812.01(1) (1) The purpose of this chapter is to establish uniform minimum standards and methods in conformity with chs. 280 and 281, Stats., for:
NR 812.01(1)(a) (a) Obtaining or extracting groundwater for any purpose; and
NR 812.01(1)(b) (b) Protecting groundwater and aquifers from contamination through adequate construction and reconstruction of water systems.
NR 812.01(1)(c) (c) Evaluating, locating, and identifying wells and pressure systems at the time of a property transfer.
NR 812.01(2) (2) This chapter shall govern the location, construction or reconstruction, maintenance and inspection of wells and water systems and heat exchange drillholes, the filling and sealing of wells and drillholes and the installation and maintenance of pumping and treatment equipment.
NR 812.01 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (1) (a), Register, September, 1994, No. 465, eff. 10-1-94; correction in (1) (intro.) made under s. 13.93 (2m) (b) 7., Stats., Register, December, 1998, No. 516; CR 13-096: am. (2), CR 13-099: cr. (1) (c), am. (2) Register September 2014 No. 705, eff. 10-1-14; 2015 Wis. Act 197 s. 42 Register April 2016 No. 724.
NR 812.02 NR 812.02Applicability.
NR 812.02(1) (1) For the purposes of construction and installation, the provisions of this chapter apply to all new and existing water systems and drillholes with the following exceptions:
NR 812.02(1)(a) (a) Wells governed under ch. NR 141, unless they are high capacity wells, in which case ch. NR 812 also applies.
NR 812.02(1)(b) (b) Any community water system governed under chs. NR 809, 810, and 811.
NR 812.02(1)(c) (c) Nonpotable surface water systems.
NR 812.02 Note Note: Certain diversions of surface water for nonpotable uses require a permit under ch. 30, Stats.
NR 812.02(2) (2) For the purposes of filling and sealing, the provisions of this chapter apply to all drillholes and wells including elevator shaft drillholes, unsuccessful or noncomplying heat exchange drillholes, mining exploration drillholes not regulated by ch. NR 132 or subch. III of ch. 295, Stats., and wells and drillholes not regulated by s. NR 141.25.
NR 812.02(3) (3) For the purposes of the prohibition of the underground placement of any substance as defined in s. 160.01 (8), Stats., the provisions of this chapter apply to all wells and drillholes.
NR 812.02(4) (4) The requirements of s. NR 812.08 do not apply to water withdrawal or use that is associated with mining operations or bulk sampling regulated under subch. III of ch. 295, Stats.
NR 812.02 Note Note: Private water systems and noncommunity water systems, located in counties delegated authority to administer this chapter under ch. NR 845, are subject to county permit requirements.
NR 812.02 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (1) (a) and (2), cr. (3), Register, September, 1994, No. 465, eff. 10-1-94; correction in (1) (a) and (b) made under s. 13.93 (2m) (b) 7., Stats., Register, September, 1994, No. 465; CR 13-099: am. (1) (b), (2) Register September 2014 No. 705, eff. 10-1-14; CR 13-057: am. (2), cr. (4) Register July 2015 No. 715, eff. 8-1-15; correction in (2) made under 35.17, Stats., Register July 2015 No. 715.
NR 812.03 NR 812.03Cooperation with the department.
NR 812.03(1)(1) Well drillers, pump installers and well constructors shall, when requested by the department, give notice to the department, as specified in the notice of request, at least on the department work day prior to the day upon which any well construction or reconstruction or any part thereof, any well filling and sealing operation or the installation of any pumping equipment, will be commenced. Heat exchange drillers shall notify the department no less than one work day prior to constructing or reconstructing a heat exchange drillhole.
NR 812.03(3) (3) Well and heat exchange drillers and well constructors shall contact the department to determine if any special construction is required if the well or heat exchange driller or well constructor proposes to construct or reconstruct a well or heat exchange drillhole on a property that is located within the service area of a municipally owned water system.
NR 812.03(4) (4) Well and heat exchange drillers and well constructors shall, when requested by the department, contact the department to determine if any special construction is required if the well or heat exchange driller or well constructor is engaged to construct a new well or heat exchange drillhole or reconstruct an existing well because the existing well or heat exchange drillhole is known to contain contaminants in excess of the drinking water standards in ch. NR 809.
NR 812.03 Note Note: The Department of Natural Resource's GIS Registry of Closed Remediation Sites has been renamed (GIS Registry) and reformatted. The information about sites with residual contamination and continuing obligations can now be found at http://dnr.wi.gov/topic/Brownfields/clean.html. This web page includes links to both the tracking system and map view. The information about a specific site can be found in the Bureau for Remediation and Redevelopment Tracking System (BRRTS) on the Web. A map view of sites on the GIS Registry layer can be found on RR Sites Map.
NR 812.03(5) (5) Heat exchange drillers shall contact the local water supply utility in order to determine whether the project is located within a wellhead protection area or within 400 feet of a municipal well.
NR 812.03 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; correction in (2) made under s. 13.93 (2m) (b) 7., Stats., Register, September, 1994, No. 465; CR 00-111: am., Register October 2001 No. 550, eff. 11-1-01; CR 13-096: am (1), (3), (4), cr. (5), CR 13-099: am. (1), r. (2) Register September 2014 No. 705, eff. 10-1-14.
NR 812.04 NR 812.04Contracts for noncomplying installations.
NR 812.04(1)(1) Well and heat exchange drillers, pump installers and well constructors shall ensure that the construction and reconstruction of wells, heat exchange drillholes or the installation of pumping equipment adheres to all the applicable provisions of this chapter or to approved comparable construction or installation requirements. Well and heat exchange drillers, pump installers and well constructors may not enter into any agreement, written or oral, for construction, reconstruction or installation which does not require compliance with the applicable provisions of this chapter or with approved comparable construction or installation requirements.
NR 812.04(2) (2) When there is any construction, reconstruction or equipment installation on a noncomplying feature, the feature shall be upgraded and brought into compliance with the specifications in this chapter for new construction. The well driller or pump installer shall inform the water system owner or user of the water system of other noncomplying features, that are apparent and known, in writing on a department form. A copy of the form shall be filed with the department by the well driller, pump installer or by the water system owner or user within 10 days after the initial evaluation of the water system has been completed if the required repairs are not made.
NR 812.04 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (2), Register, September, 1994, No. 465, eff. 10-1-94; CR 13-096: am. (1) Register September 2014 No. 705, eff. 10-1-14.
NR 812.05 NR 812.05Disposal of pollutants; injection prohibition.
NR 812.05(1)(1) For the purposes of this section:
NR 812.05(1)(a) (a) “Drillhole" includes any excavation or opening that is deeper than it is wide, even if it extends less than 10 feet below the ground surface.
NR 812.05(1)(b) (b) “Well" includes any excavation that is deeper than it is wide regardless of the excavation's depth or purpose.
NR 812.05(2) (2) The use of any well, drillhole or water system for the placement of any waste, surface or subsurface water or any substance, as defined in s. 160.01 (8), Stats., underground is prohibited unless any of the following apply: 
NR 812.05(2)(a) (a) The placement is a department-approved activity necessary for any of the following:
NR 812.05(2)(a)1. 1. The construction, rehabilitation or operation of a well, drillhole or water system.
NR 812.05(2)(a)2. 2. The construction of a cathodic protection drillhole approved under s. NR 812.09.
NR 812.05(2)(a)3. 3. The remediation of contaminated soil, groundwater or an aquifer.
NR 812.05(2)(a)4. 4. The study of groundwater conditions under sub. (4).
NR 812.05(2)(b) (b) The placement consists of grouting, sealing or filling and sealing materials as specified in s. NR 812.20 or 812.26; grouting or filling and sealing materials as specified in s. NR 811.13; annular space sealing or filling and sealing materials specified in s. NR 141.13 or 141.25; or other similar materials containing additives approved under sub. (3).
NR 812.05(2)(c) (c) The placement consists of bentonite grout, cement or concrete, or other similar materials containing additives approved under sub. (3), for the purposes of soil or excavation site stabilization, tunnel support, underpinning or foundation strengthening, groundwater control or diversion or for limiting structural settlement.
NR 812.05(3) (3) The department may approve alternative materials or additives that are to be used in conjunction with the activities noted under sub. (2). Approval shall be based on, but not limited to, such factors as the potential toxicity of an alternative material or additive, the effectiveness of an alternative material or additive for its specified use, the amount or quantity of material to be used, and the potential for use of an alternative material to result in groundwater contamination or otherwise harm human health or the environment. 
NR 812.05(4) (4) Only department approved groundwater tracers may be used for hydrogeologic studies. Approval shall be based on, but not limited to, such factors as the potential toxicity of a tracer, the effectiveness of a tracer for its use as specified in an application for approval, and the potential for use of a tracer to result in groundwater contamination or otherwise harm human health or the environment. A list of previously approved groundwater tracers is available from the department upon request. 
NR 812.05(5) (5) The following activities are not prohibited by this section:
NR 812.05(5)(a) (a) Circulation of water or a food-grade heat exchange fluid through a closed-loop heat pump system in a drillhole.
NR 812.05(5)(b) (b) Construction of a structure such as, but not limited to, a building foundation, support footing, elevator shaft, lift station, utility conduit, sump, mine shaft or equipment vault.
NR 812.05(5)(c) (c) Except for the disposal of a waste material, the placement of a solid object such as, but not limited to, a cathodic protection device, coffin, piling, pole or post.
NR 812.05(5)(d) (d) Horticultural or agricultural practices, other than those activities that involve the use of a well or drillhole for the placement of a waste material or drainage water underground.
NR 812.05(5)(e) (e) Injection activities conducted in conjunction with placement of backfill into an underground nonferrous metallic mine approved under ch. NR 132 or in connection with placement of backfill into an underground ferrous mine approved under subch. III of ch. 295, Stats.
NR 812.05 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. Register, September, 1994, No. 465, eff. 10-1-94; am. Register, May, 2000, No. 533, eff. 6-1-00; CR 13-099: am. (2) (b) Register September 2014 No. 705, eff. 10-1-14; CR 13-057: am. (5) (e) Register July 2015 No. 715, eff. 8-1-15.
NR 812.06 NR 812.06Drinking water standards. Private or non-community water systems producing water containing contaminant levels in excess of the primary drinking water standards contained in ch. NR 809, the enforcement standards contained in ch. NR 140, or other advisory levels identified by the department may be designated by the department as contaminated.
NR 812.06 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; correction made under s. 13.93 (2m) (b) 7., Stats., Register, September, 1994, No. 465.
NR 812.07 NR 812.07Definitions. The following terms are defined as follows:
NR 812.07(1) (1) “Adequate water supply" means a water supply which has a well yield and the pump capacity to provide the quantity and quality, where obtainable, according to s. NR 812.06, of water necessary for human or sanitary use, or for the preparation of food products and other purposes for which the water is intended to be used.
NR 812.07(1d) (1d) “Advance notification" means notification to the department via fax, e-mail or telephone at least one working day before commencing any work.
NR 812.07(1h) (1h) “Agricultural crop field" means land where there is evidence that agricultural crops were or are being grown.
NR 812.07(1p) (1p) “Air-gap" means the unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank or plumbing fixture and the flood level rim or spill level of the receptacle.
NR 812.07(1t) (1t) “Animal barn" means a covered, paved or unpaved area in which animals are kept. This includes an area where an individual animal is kept, but does not include a single pet house or single pet kennel housing 5 or fewer adult pets on a residential lot.
NR 812.07(2) (2) “Animal barn pen" means a covered, enclosed concrete area where animals are kept.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.