NR 812.42(5)(b)(b) Depth. If the well was dug after June, 1975, the watertight curbing shall extend to a depth of at least 25 feet below ground surface and the well shall produce water free from coliform bacteria. If the well was dug prior to June, 1975, the watertight curbing shall extend to at least the 15-foot depth and the well shall produce water free from coliform bacteria. NR 812.42(5)(c)(c) Cover. The dug well cover shall be of watertight, reinforced concrete at least 5 inches thick and wide enough to overlap the curbing by at least 2 inches. It shall provide a tight seal and be free of joints. A steel well casing pipe sleeve meeting the requirement for potable well casing pipe specified in s. NR 812.11 (6) shall extend watertight through the cover to provide access for installing the pump. The steel well casing pipe sleeve shall extend at least 8 inches above the cover and have an approved well cap or a one-piece well seal. NR 812.42(5)(d)(d) Equipment location. Pumping equipment or attachments may not be installed for a dug well so that access to the interior of the well will be required for maintenance or repair. NR 812.42(6)(6) Pump and pump discharge installations. Pump installations installed prior to February 1, 1991 shall conform to the following requirements: NR 812.42(6)(a)(a) Residential up to three families. Installations for water supplies serving a maximum total of 3 families in residential units shall meet the following requirements: NR 812.42(6)(a)1.1. The subsurface connection to the well casing pipe may be made with an approved weld-on pitless adapter or with an approved pitless unit provided the adapter or unit is installed according to the requirements of s. NR 812.31. NR 812.42(6)(a)2.a.a. Any buried suction pipe shall be contained in a sealed pressurized conduit or a nonpressurized conduit, if the nonpressurized conduit was installed before February 1, 1991 (Figures 12 and 13 of ch. NR 812 Appendix). The nonpressurized conduit shall meet the pipe requirements of Table B between the connection to the well casing pipe and a basement, or shall be properly connected to the well with an approved pitless adapter or pitless unit designed for and used with a concentric piping arrangement. Unprotected buried suction lines not enclosed in conduit may not be used. NR 812.42 NoteNote: Unprotected buried suction lines have never been allowed by the Wisconsin Well and Pump Code.
NR 812.42(6)(a)2.b.b. Nonpressurized conduits shall have been welded watertight or threaded watertight to the well casing pipe and shall be at least 4 inches in diameter and shall enter the basement such that the bottom of the conduit is at least 6 inches above the basement floor. NR 812.42 NoteNote: Nonpressurized conduits to protect buried suction lines were only allowed before February 1, 1991 and then only for installations serving three or fewer homes.
NR 812.42(6)(a)2.c.c. A nonpressurized conduit may extend at an angle up through a basement floor, or up through a concrete slab floor of a building having no basement, provided the lowest end of the conduit is at least 6 inches above the floor. NR 812.42(6)(a)2.d.d. The basement end of a nonpressurized conduit shall be sealed with a watertight seal. NR 812.42(6)(a)3.3. Buried submersible pump discharge pipes connected to pitless adapters or pitless units shall conform to the requirements specified in s. NR 812.11 (6) for steel pipe or shall conform to the requirements in the “Pipe and Tubing for water services and private water mains” table in ch. SPS 384. This pipe shall be maintained under system pressure at all times. No check valve may be placed in the pump discharge line between a pitless adapter or unit and a pressure tank or other pressure vessel. The check valve shall be located either at the top of the submersible pump, in that portion of the discharge pipe within the well or on the spool of an approved spool-type pitless unit. NR 812.42(6)(b)(b) Residential more than three families. Installations for non-community water systems and water systems serving more than 3 families in residential units except high capacity and school wells shall meet all of the following requirements: NR 812.42(6)(b)1.1. The subsurface connection to the well casing pipe may be made with a factory-assembled pitless unit provided the unit is approved and installed according to the requirements of s. NR 812.31. NR 812.42(6)(b)2.2. All suction pipe for off-set pump installations shall be enclosed in a sealed pressurized conduit between the connection to the well casing pipe and a basement, or shall be connected to the well with an approved factory-assembled pitless unit designed for and having a concentric pressurized piping arrangement. Unprotected buried suction lines or suction lines enclosed in nonpressurized conduits may not be used. The pipe for a pressurized conduit shall meet the requirements of Table B and shall enter the basement such that any pump suction pipe in the basement not enclosed in a pressurized conduit shall be at least 6 inches above the basement floor. NR 812.42(6)(b)4.4. When an existing off-set pump installation using a nonpressurized conduit has been or will be converted to a submersible pump installation, the nonpressurized conduit shall be completely eliminated by cutting off the well casing pipe below the nonpressurized conduit, extending the well casing pipe to at least 12 inches above grade in accordance with sub. (12) and installing pressurized discharge piping according to the requirements of ss. NR 812.28, 812.31, and 812.32 (4). NR 812.42(6)(c)(c) School and high capacity wells. Pump installations for water supplies serving schools, and high capacity wells shall be provided with an above-ground discharge meeting the minimum requirements of s. NR 812.32. NR 812.42(6)(d)(d) Pit pump location. A pump located in a conforming pit or alcove shall be installed to allow the sealing of the top of the well with an approved one-piece sanitary well seal. NR 812.42(6)(e)(e) Hand pumps. Hand pumps may be continued in service if the pump base flange is bolted watertight to a well casing pipe flange and has a gasket seal; if the pump is firmly threaded to the well casing pipe; or if the structured base of the pump has recesses and is bolted to the top of the well casing pipe. NR 812.42(6)(f)(f) Pump connections to reservoirs. If water is pumped to a reservoir, the piping attachment to the pump shall be made with watertight pipe fittings. The discharge pipe from the pump shall enter the reservoir in a watertight manner through that portion of the structure extending above the ground grade, unless a subsurface reservoir supply pipe is connected to the well by an approved pitless adapter and the supply pipe can be maintained under a continuous pressure head which is greater than the ground surface elevation. In such case the supply pipe shall terminate near the bottom of the reservoir. A float control switch or low and high water level electrical pump-control elements may be provided to control the pump. A check valve may be installed only in the portion of the pump discharge pipe located within the well. NR 812.42(6)(g)(g) Pump installations for flowing wells. Pump installations for flowing wells shall meet the requirements of s. NR 812.32 (9). NR 812.42(7)(a)(a) When a well is not terminated in a basement, in a walkout basement, in a pit, or in an alcove, the well casing pipe shall extend above grade as follows: NR 812.42(7)(a)1.1. Low capacity wells, except school and wastewater treatment plant wells, constructed before February 1, 1991 shall terminate at least 8 inches above established ground grade, NR 812.42(7)(a)2.2. High capacity, school and wastewater treatment plant wells shall terminate at least 12 inches above established ground grade, and NR 812.42(7)(a)3.3. All wells constructed on or after February 1, 1991 shall terminate at least 12 inches above established ground grade. NR 812.42(7)(a)4.4. All wells located in a floodplain shall extend at least 2 feet above the regional flood elevation for the well site. NR 812.42(7)(b)(b) When the height of a well casing pipe does not meet the requirements of this section, it shall be extended in accordance with subs. (11) and (12) to a height at least 12 inches above ground grade or above the floor of a pumphouse; or, if applicable, 2 feet above the regional flood elevation. NR 812.42(7)(c)1.1. When a well is terminated in a basement, a below-grade crawl space, in a walkout basement, in a pit or in an alcove, the well casing pipe shall extend 6 inches above the floor of the structure. NR 812.42(7)(c)2.2. When the height of a well casing pipe does not meet the requirements of this section, it shall be extended in accordance with sub. (12) to a height at least 12 inches above the floor of the structure, except that for wells extended out of pits and alcoves the well casing pipe shall be extended at least 12 inches above the outside ground grade. When the well would create an obstruction to pedestrian passage, the well casing pipe may be raised to a height just below the ceiling of the alcove structure. NR 812.42(7)(c)3.3. The well casing pipe may only be extended if the well meets the well casing pipe depth requirements of sub. (1) (b). If it does not meet the requirements of sub. (1) (b), the well shall be filled and sealed according to the requirements of s. NR 812.26. The well casing pipe depth shall be measured before extending the well casing pipe, if there is no confirmable well construction report for the well. Well details, including location, well casing pipe depth, total well depth, distances to possible contaminant sources, and well owner information shall be entered on a form and submitted to the department in accordance with s. NR 812.10 (15). NR 812.42(8)(a)(a) A noncomplying well cap or well seal shall be replaced with an approved well cap or well seal in any of these situations: NR 812.42(8)(a)1.1. The existing cap or seal, or the electrical conduit is broken or damaged, NR 812.42(8)(a)2.2. The well is entered for the purpose of installing, replacing, or repairing the pump or any other equipment located within the well. NR 812.42(8)(a)3.3. The well is entered for the purpose of reconstructing or rehabilitating the well. NR 812.42(8)(c)(c) Split-plate well seals may only be used when the well is located in a pumphouse or a building. NR 812.42(8)(d)(d) No open holes, other than an optional screened well vent, may exist in a new replacement well cap or well seal. NR 812.42(8)(e)(e) Approved well caps or approved well seals shall be installed by licensed water well drillers or registered water well drilling businesses, or licensed pump installers or registered pump installing businesses. NR 812.42(9)(a)(a) Wells in basements and below-grade crawl spaces, not including wells in alcoves. NR 812.42(9)(a)1.1. Wells constructed after April 10, 1953 terminating in basements or wells constructed after July of 1951 terminating under a building addition shall be permanently filled and sealed according to the requirements of s. NR 812.26. NR 812.42(9)(a)3.3. Screens may not be replaced on driven point wells terminating in or extending through basements or below-grade crawl spaces. When a driven point well screen needs replacement, the driven point well shall be permanently filled and sealed according to the requirements of s. NR 812.26. Any replacement well shall meet the requirements for new wells in this chapter. NR 812.42(9)(a)4.4. Wells terminating in basements or below grade crawl spaces may remain in service if all of the following conditions are met: NR 812.42(9)(a)4.b.b. If the well is a driven point, the point was never replaced after April 10, 1953. NR 812.42(9)(a)4.e.e. The well and pump installation are in compliance with all other requirements of this chapter. NR 812.42(9)(b)(b) Wells in walkout basements. Wells terminating in walkout basements may remain in service if all of the following conditions are met: NR 812.42(9)(b)1.1. It is possible to walk directly outside from the walkout basement without walking upstairs or upslope. NR 812.42(9)(b)2.2. The surface of the ground around the outside exit door of the walkout basement slopes down away from the door. NR 812.42(9)(b)3.3. The well and pump installation are accessible for repair and removal. NR 812.42(9)(b)6.6. The well and pump installation are in compliance with all other requirements of this chapter. NR 812.42(9)(b)9.9. The well is sealed watertight where the well casing exits the basement floor. NR 812.42(10)(10) Driveway ramps. A well may terminate within a driveway ramp if the installation complies with the requirements for driveway ramps in s. NR 812.36 (3). NR 812.42(11)(a)(a) Pits and alcoves, noncompliant casing height or well deepening. Before extending any well casing pipe out of a pit or alcove, extending casing when the height is noncompliant, or deepening a well constructed by another individual, the well driller or the pump installer shall measure the well casing pipe depth to verify that the casing depth complies with the rules in effect at the time the well casing was installed including any special well casing depth area requirements or variances, if no confirmable well construction report can be found for the well. Well details, including location, well casing pipe depth, total well depth, distances to possible contaminant sources, and well owner information shall be entered on a form and submitted to the department in accordance with s. NR 812.10 (15). NR 812.42(11)(am)(am) Reconstruction. A well constructed in violation of the requirements in effect at the time of construction or a well constructed to meet the requirements in effect at the time of construction but not according to the construction requirements of ss. NR 812.09 to 812.15 may not be reconstructed. NR 812.42(11)(b)(b) Sample Faucet. When doing any pump work involving replacement of the pressure tank, or work involving the water supply piping inside the basement or building, the pump installer shall install sample faucets that meet the requirements specified in s. NR 812.34 if any are missing. The pump installer shall also replace any sample faucet that does not comply with the requirements of s. NR 812.34, including replacement of any threaded sample faucet with a sample faucet without threads. The pump installer or well owner may not file the threads off a noncomplying sample faucet. NR 812.42(11)(c)1.1. When doing any water well work or pump installing work that involves entry into a well located outside a building, the water well driller or pump installer shall extend the well casing pipe to at least: NR 812.42(11)(c)1.a.a. 12 inches above grade for any well that is less than 8 inches above grade and was installed before February 1, 1991. NR 812.42(11)(c)1.b.b. 12 inches above grade for any well that is less than 12 inches above grade and was installed on or after February 1, 1991. NR 812.42(11)(c)2.2. When the well casing height above grade does not comply with subd. 1. a. or b., the well driller or the pump installer shall measure the well casing pipe depth to verify that the well casing pipe depth complies with the rules in effect at the time that the well was constructed, if there is no confirmable well construction report available for the well. Well details, including location, well casing pipe depth, total well depth, distances to possible contaminant sources and well owner information shall be entered on a form and submitted to the department in accordance with s. NR 812.10 (15). NR 812.42(11)(d)(d) Well cap or seal. When doing any water well work or pump installing work that involves entry into a well, the well driller or pump installer shall replace any unapproved well cap or seal with an approved well cap or sanitary well seal. NR 812.42(11)(e)(e) Nonpressurized conduit. When any water well drilling work or pump installing work is performed involving entry into a well that has a nonpressurized conduit and the nonpressurized conduit may continue to be used, the well driller or pump installer shall evaluate the integrity of the nonpressurized conduit and its connection to the well casing pipe by performing a pressure test. The nonpressurized conduit shall be tested and proven watertight under a pressure of not less than 14 psi. The pressure shall be maintained for at least 30 minutes. If the nonpressurized conduit fails the pressure test, the installation shall be changed to a pitless connection. The nonpressurized conduit shall be completely eliminated by cutting off the well casing pipe below the nonpressurized conduit and extending the well casing pipe to at least 12 inches above grade and installing pressurized discharge piping according to the requirements of ss. NR 812.28, 812.31 and 812.32 (4). The extension of the well casing pipe shall be in accordance with sub. (12). NR 812.42(11)(f)(f) Corrections. The features specified in pars. (a) to (e) must be corrected and may not be noted on a noncomplying features form instead of correcting the noncomplying feature or testing the nonpressurized conduit. NR 812.42(12)(12) Well casing height extensions for steel well casing pipe. NR 812.42(12)(a)(a) The well casing pipe in the ground may only be extended up if it has the minimum wall thickness for its diameter according to the requirements of s. NR 812.11 (6) Table B and is not in a deteriorated condition. If it does not meet these requirements, the well shall be filled and sealed according to the requirements of s. NR 812.26. The well casing pipe extension (riser pipe) shall meet the requirements of s. NR 812.11 (6) and shall be attached to the top of the existing casing by any of the following methods: NR 812.42(12)(a)1.1. Cutting off the well casing pipe in the ground squarely, providing a bevel for the top of the well casing pipe and making a watertight weld between the beveled end of the well casing pipe and the beveled end of the riser pipe. NR 812.42(12)(a)2.2. Cutting threads on the top of the well casing pipe and the bottom of the riser pipe with a pipe die and using a full-standard recessed threaded coupling to provide a watertight connection between the two pipes. NR 812.42(12)(a)3.3. Welding a properly-sized, snug-fitting, pipe nipple, beveled on the lower end and having threads on the upper end, and meeting the requirements of s. NR 812.11 (6) to the beveled end of the well casing pipe. The pipe nipple shall be welded on the inside and the outside contact surfaces of the pipe nipple. A threaded riser pipe shall be screwed onto the top of the welded on pipe nipple. NR 812.42(12)(a)4.4. Reaming out the threads of a full standard recessed coupling, at least 1/3 the length of the coupling, and welding the coupling to the top of the cut-off well casing pipe with a fillet weld on the inside and outside contact surfaces of the coupling. The riser pipe shall be threaded into the top of the coupling. NR 812.42(12)(a)5.5. The threaded lower end of a riser pipe may not be welded to the cut-off end of a well casing pipe. NR 812.42(12)(a)6.6. Riser pipe may not be connected to the well casing pipe by means of a compressible joint. NR 812.42(13)(13) Disinfection, flushing and sampling. When working on existing water wells or pump installations, the well and water system shall be:
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Department of Natural Resources (NR)
Chs. NR 800- ; Environmental Protection – Water Supply
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