Neat Cement Grout for the Purpose of Filling and Sealing a Well) - See PDF for table PDF
NR 812.26 Note Note: Note: Table VI is based on Halliburton Cementing Tables
NR 812.26(7)(b)2. 2. Concrete shall consist of a mixture of cement, water, sand, and gravel in the proportion of one bag Portland cement (94 pounds) (ASTM C 150, Type I or API-10A, Class A), an equal measure of sand and an equal measure of gravel, by weight or by volume, and not more than 6 gallons of water. As an alternative, a commercially prepared mix may be used providing the mix has at least 6 bags of cement per cubic yard. The gravel size may not exceed 1/3 of the inside diameter of the conductor (tremie) pipe used for filling and sealing the well or drillhole.
TABLE C
ACCEPTABLE MATERIALS AND METHODS FOR WELL FILLING AND SEALING
NR 812.26(8) (8)Well and drillhole filling and sealing reports.. A well and drillhole filling and sealing report shall be filed with the department no later than 30 days after the well or drillhole is filled and sealed. The filling and sealing report shall be filed by the person performing the filling and sealing work on forms specified by the department and shall include a complete, true and accurate detailed description of the location of the well or drillhole that was filled and sealed, materials and method of filling and sealing, construction and geologic features and Wisconsin Unique Well Number, if known. Water well drillers, heat exchange drillers, well constructors and pump installers shall report any unused wells or drillholes that are not filled and sealed for which they have knowledge to the department. Beginning July 1, 2016 filling and sealing reports shall be filed with the department electronically.
NR 812.26(9) (9)Well and drillhole filling and sealing license or registration requirements. In order to fill and seal a well or drillhole, or to verify that a well or drillhole was properly filled and sealed, a person must be licensed or registered in accordance with ch. NR 146 and ch. 280, Stats.
NR 812.26 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (2) (a) 4., (3), (6) (c) (intro.), (7) (a) (intro.) 1. b., 2., 3. a., 4. a. and c. and 5., cr. (2) (d), (7) (a) 6. and Table C, Register, September, 1994, No. 465, eff. 10-1-94; CR 13-096: cr. (2) (a) 5m., am. (2) (b) 2., (c) 1.,cr. (7) (a) 7., am. (8), CR 13-099: am. (title), (1), (2) (a) (intro.), 1., 2., 4., cr. (2) (a) 5., 6., am. (2) (b), (c) (intro.), (d), (3), r. (4), am. (5) (intro.), r. (5) (e), am. (6) (title), (a), (b), (c) (intro.), 3. (intro.), (d) to (g), cr. (6) (h), (i), am. (7) (title), (a) (intro.), 1., 2., 3. (intro.), a., cr. (7) (a) 3. d. to g., am. (7) (a) 4. to 6., (b), cr. Table VI, r. and recr. Table C, am. (8), cr. (9) Register September 2014 No. 705, eff. 10-1-14; correction in numbering in (2) (a) 5m. made under s. 13.92 (4) (b) 1., Stats., Register September 2014 No. 705; 2015 Wis. Act 197 ss. 47, 48 Register April 2016 No. 724.
subch. III of ch. NR 812 Subchapter III — Requirements for New Pump Installations and Water Treatment
NR 812.27 NR 812.27Pump installer requirements.
NR 812.27(1) (1)License requirement. Pump installers shall hold a valid Wisconsin license. A master plumber licensed under ch. 145, Stats., may install a pressure tank without a pump installers license. The name and license number of the pump installer or pump installer firm shall be identified on the pump installation truck and similar equipment. The identification shall be at least 2 inches in height with at least 1/4 inch wide brush stroke. The identification shall have a sharp color contrast with the background on which it is applied. The identification shall remain legible.
NR 812.27(2) (2)Location requirement. Except when the reporting requirements of s. NR 812.04 (2) are complied with, a pump may not be installed, replaced or serviced in a well that is not properly located according to the minimum location and separation requirements in effect at the time of construction and:
NR 812.27(2)(a) (a) According to the minimum location requirements in effect at the time of installation of any potential source of contamination, if the source was installed more recently, or
NR 812.27(2)(b) (b) According to the minimum location requirements of s. NR 812.08.
NR 812.27(3) (3)Pits. Existing pits and subsurface pumprooms shall comply with the conditions of a department approval to construct the pit or to the minimum standards of s. NR 812.42 (2).
NR 812.27(4) (4)Pitless adapters and units. Pump installers or persons installing pumps shall use approved pitless adapters and pitless units to make subsurface connection to wells as specified in s. NR 812.31.
NR 812.27(5) (5)Disinfection and well seals. The pump installer shall disinfect any potable well and water system according to s. NR 812.22 (4) and (5) upon completion of the original pump installation and thereafter, anytime the well is entered for the purpose of measuring or diagnosing any feature or problem with the well or after the well is entered for rehabilitation, redevelopment, reconditioning or cleaning or if the well is entered for the purpose of installing, replacing or repairing any equipment located within the well. Following disinfection, the disinfectant shall be flushed according to s. NR 812.22 (5). The disinfection and flushing shall be completed before the system is placed into service. The pump installer shall seal or cover the well with an approved vermin–proof cap or seal.
NR 812.27 Note Note: The pump installer may designate the owner, the property lessee or any other person to flush the system.
NR 812.27(6) (6)Sampling and reporting requirements. In accordance with all requirements of s. NR 812.41 (3), the pump installer, or his or her agent, shall collect a water sample or samples from a potable well no later than 30 days following completion of the original pump installation and thereafter no later than 30 days after the well is entered for the purpose of measuring or diagnosing any feature or problem with the well or after the well is entered for rehabilitation, redevelopment, reconditioning or cleaning or if the well is entered for the purpose of installing, replacing or repairing any equipment located within the well. The water sample shall be analyzed for coliform bacteria by either a laboratory certified by DATCP for bacteriological analysis of drinking water and having an agreement with the department for electronic submission of laboratory test reports to the department no later than 30 days after completion of the analysis, or be analyzed by the Wisconsin state laboratory of hygiene. For pump work that involves entry into the well, other than the original pump installation, water samples shall also be collected by the pump installer and analyzed for nitrate and arsenic by laboratories certified for those analyses and having an agreement with the department for electronic submission of laboratory test reports to the department within 30 days after completion of the analyses, or analyzed by the Wisconsin state laboratory of hygiene. The pump installer may designate the owner, the property lessee or any other person to collect the samples and submit them for analysis. The pump installer shall provide a copy of the laboratory test report(s) to the well owner within 10 days of the receipt of the report(s) by the pump installer.
NR 812.27(7) (7)Notification of contaminated wells. Pump installers shall notify a well owner if the pump installer becomes aware that the water from the well contains contaminants in excess of the primary drinking water standards in ch. NR 809.
NR 812.27(8) (8)Bacteriologically unsafe wells. The pump installer shall return to the well site to attempt to correct a problem with a potable well that produces bacteriologically unsafe water. The pump installer shall return no later than 90 days after the pump installation is completed or 30 days after the pump is placed into service, whichever is longer. If noncomplying installation or failure to disinfect was not the cause of the problem, a fee may be charged by the pump installer for any corrective work.
NR 812.27(9) (9) Potable water supplies shall be protected to prevent back-flow, back-siphonage and cross-connections according to the requirements in s. SPS 382.41 and s. NR 812.32 (1) (f).
NR 812.27(10) (10) When a pump installer has performed pump installation work not in compliance with this chapter, the pump installer shall return to bring the system into compliance. The pump installer shall pay all costs for bringing the installation into compliance with this chapter, other than those costs that would have been charged for an initially complying installation.
NR 812.27(11) (11) A pump installer may not install a pump in a well having an open annular space that extends deeper than twice the depth of the pitless adapter or pitless unit. When an annular space is open to a depth greater than this depth, the pump installer shall inform the well driller so that the driller knows to return to the job site and seal the annular space according to s. NR 812.20. The pump installation shall not be completed until the well driller has resealed the annular space. If the annular space is open to a depth less than or equal to twice the depth of the pitless adapter, the pump installer may seal the open annular space with an approved granular bentonite hydrated with water from a known safe and uncontaminated source.
NR 812.27 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (2), (4) to (6), cr. (8) and (9), Register, September, 1994, No. 465, eff. 10-1-94; correction in (9) made under s. 13.93 (2m) (b) 7., Stats., Register, September, 1996, No. 489; correction in (9) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 13-099: am. (5), r. and recr. (6), am. (8), (9), cr. (10), (11) Register September 2014 No. 705, eff. 10-1-14.
NR 812.28 NR 812.28Pump installation equipment and supply pipe. The department may prohibit the use of any water supply equipment if the department finds there is substantial evidence that the equipment poses a significant hazard to safe drinking water or the groundwater. The department shall state its decision and conclusions in writing to the manufacturer, the licensed pump installers and the industry representatives including the Wisconsin Water Well Association and the Wisconsin Pump and Well Suppliers Association. Unless otherwise specified, the prohibition of the use of any water supply equipment will take effect 12 months after the initial prohibition notice. Pump discharge and supply piping shall conform to the specifications in s. NR 812.17 for steel pipe or shall conform to the requirements in the “Pipe and Tubing for water services and private water mains" table in s. SPS 384.30, except that Type M copper pipe may not be installed underground. Pipe used for year-round installations shall be protected from freezing. Lead-based solder for pipe connections may not be used. The department recommends that galvanized pipe not be used when the water quality is known to be corrosive. Limitations on the use of plastic pipe are found in s. SPS 384.30. Plastic pipe may not be used for buried pipe in soils known to be contaminated with volatile organic chemicals. Plastic pipe may be used as drop pipe installed within a well or for discharge piping between the well and the building served, provided it meets s. SPS 384.30, standards and has a minimum pressure rating of 150 pounds per square inch. When plastic pipe extends through the seal of a well with an above-ground discharge, the portion of the plastic pipe extending above-ground from the well shall be protected from sunlight or the plastic pipe used shall be of the type with inhibitors recommended for use in direct sunlight.
NR 812.28 Note Note: The department recommends the installation of torque arresters on the drop pipe for submersible pumps.
NR 812.28 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. Register, September, 1994, No. 465, eff. 10-1-94; corrections made under s. 13.93 (2m) (b) 7., Stats., Register, May, 2000, No. 533; correction made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; CR 13-099: am. Register September 2014 No. 705, eff. 10-1-14.
NR 812.29 NR 812.29Height of finished well.
NR 812.29(1) (1) For wells constructed after February 1, 1991, the pump installation shall be completed such that the watertight well casing pipe for all wells, except those located in a floodplain, shall terminate at least 12 inches above the established ground surface, above a pumphouse or building floor or above any concrete or asphalt platform surrounding the well casing.
NR 812.29(2) (2) When a low capacity well is located in an area of traffic or where the well terminus is at risk of contact by vehicles, machinery, equipment or any other hazard that poses a significant threat of damage to the well terminus, the well shall be protected from physical damage by either using rigid metal posts or comparable barriers or by terminating it within a driveway ramp constructed in accordance with s. NR 812.36.
NR 812.29(3) (3) For wells in floodplains, the top of a well and an overflow outlet from a flowing well shall terminate at least 2 feet above the regional flood elevation. Pits may not be installed to enclose a well or pump installation.
NR 812.29(4) (4) A driveway ramp may not be installed in a floodplain.
NR 812.29(5) (5) The well casing pipe may not terminate in or extend through the basement or crawl space of a building, but may terminate in a walkout basement if the following conditions are met:
NR 812.29(5)(a) (a) It is possible to walk directly outside from the walkout basement without walking upstairs or upslope.
NR 812.29(5)(b) (b) The surface of the ground around the outside exit door of the walkout basement slopes down away from the door.
NR 812.29(5)(c) (c) The well and pump installation are accessible for repair and removal.
NR 812.29(5)(d) (d) The well produces water continuously free from contaminants in excess of the drinking water standards of s. NR 812.06.
NR 812.29(5)(e) (e) The well casing pipe depth meets the requirements of s. NR 812.42 (1) (b).
NR 812.29(5)(f) (f) The well and pump installation are in compliance with all other requirements of this chapter.
NR 812.29(5)(g) (g) The walkout basement is not subject to flooding
NR 812.29(5)(h) (h) The walkout basement is not in a floodway or floodplain.
NR 812.29 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; CR 13-099: renum. section to (1), (3), (4) and am., cr. (2), (5) Register September 2014 No. 705, eff. 10-1-14.
NR 812.30 NR 812.30Vermin-proof well caps and seals.
NR 812.30(1)(1)Requirements and department approval criteria. New wells shall be sealed or covered with an approved weather and vermin-proof compression type well cap or seal installed on or in the top of the well casing pipe. Examples are depicted in figures 23 and 24. All well cap or seal approvals shall be based on materials of construction, method of venting, effectiveness of gasket, ease of removal for inspection of the inside of the well and method of attachment to the well casing pipe. Stud bolts are preferred. The nuts and bolts shall be made of material such that corrosion is minimized. A list of approved models is available from the department.
NR 812.30 Note Note: Requirements for vermin-proof caps and seals for existing wells are listed in s. NR 812.42 (8).
NR 812.30(2) (2)Well seal type. When a sanitary well seal is used to cover the upper well terminal, it shall have a one-piece top plate. A split top plate seal may not be installed unless it is enclosed in a substantial, permanent weather-proof shelter meeting the requirements of s. NR 812.40.
NR 812.30(3) (3)Well vent. A screened downward facing well vent or other vent may be provided for the well cap or seal for drilled wells. When the well is a flowing well and the well head must be maintained watertight or when there is concern for air entrained bacteria to enter the well through the vent, the vent opening may be plugged watertight with a threaded plug. Vent pipes extending above the well casing pipe shall terminate in a downward facing bend and shall be screened. Screens shall be made of material not easily corroded and shall be firmly seated in the vent opening. Vent openings incorporated as part of the underside of an approved well cap or seal are allowed.
NR 812.30 Note Note: The department recommends a vent be provided for the well cap or seal of a well that has significant water level drawdowns during normal pump operation. This recommendation does not apply to flowing wells.
NR 812.30(4) (4)Hold-down device. Well caps or seals may not be used as a hold-down device to prevent submersible pump discharge piping from coming off a pitless adapter or unit. A locking clamp or other similar approved device may be used to hold the submersible pump discharge pipe in place.
NR 812.30(5) (5)Conduit for electrical wiring. Where electrical wiring emerges from an underground installation to supply well pump equipment it shall be protected from physical damage by installing conductors or cables within a nonmetallic or steel raceway. The raceway material shall be: Listed, Schedule 80 sunlight resistant Rigid Polyvinyl Chloride Conduit (Type PVC), Listed, Intermediate Metal Conduit (IMC), or galvanized Rigid Metal Conduit. The conduit shall be threaded tightly into the well cap or shall be secured and sealed in an equivalent manner. Where a direct buried electrical cable supplies the well, the bottom of the conduit providing physical protection shall extend a minimum of 2 feet below grade. The conduit shall be sealed above grade in a watertight manner with a listed fitting, or by use of 100% silicone, urethane, or Butyl caulking. Where the conduit or raceway extends continuously from the well to a building or pump equipment enclosure, both ends of the conduit or raceway shall be sealed in a watertight manner as described in this paragraph.
NR 812.30(6) (6)Preparation of top of the well casing pipe. Any jagged edges or other significant irregularities in the top of the well casing pipe shall be removed by the well driller or the pump installer before the vermin-cap or seal is installed.
NR 812.30 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (1), (3) and (5), Register, September, 1994, No. 465, eff. 10-1-94; CR 13-099: am. (3), r. and recr. (5), cr. (6) Register September 2014 No. 705, eff. 10-1-14.
NR 812.31 NR 812.31Pitless adapters and pitless units. Pump installers or persons installing pumps shall use pitless adapters or pitless units approved by the department to make subsurface connections to wells. Nonpressure conduits may not be used, unless a variance is granted by the department.
NR 812.31 Note Note: In areas especially prone to lightning strikes to wells having submersible pumps, the department will grant variances to the prohibition against nonpressure conduits.
NR 812.31(1) (1)Department approval criteria. The design criteria on which pitless adapter or pitless unit approvals are based include, but are not limited to, materials of construction, thickness of pipe or tubing, thickness of other component parts, method of fabrication, method of connection and the integrity of the seal to the well casing pipe. The department may require additional standards and tests, including minimum pressure test performance, that the department deems necessary to demonstrate the sanitary integrity of any adapter or unit submitted for department approval. A list of approved models is available from the department. Pitless receiver tanks, factory-assembled pitless units, both short and full length models are depicted in figures 25 to 28.
NR 812.31(2) (2)General requirements.
NR 812.31(2)(a)(a) A pitless subsurface pipe connection to a well casing pipe shall be made with an approved weld-on, clamp-on, bolt-on or bolt-through pitless adapter or with an approved pitless unit, except that a bolt-through adapter may only be installed for a well constructed with polyvinyl chloride well casing pipe that has a permanently attached well screen. A clamp-on, bolt-on or bolt-through pitless adapter may only be installed for a well that will serve a single family residence. Weld-on adapters or pitless units shall be welded or threaded to the well casing pipe according to sub. (3) or (4). All welding shall be performed in accordance with s. NR 812.18. A pitless adapter or pitless unit shall be installed according to any approval conditions and according to the manufacturer's instructions.
NR 812.31(2)(b) (b) The inside diameter of a pitless unit may not be smaller than the inside diameter of the well casing pipe. No part of a pitless adapter may extend into the inside of the well casing pipe, except that a bolt-through pitless adapter may be installed for a well with polyvinyl chloride well casing pipe having a permanently attached screen.
NR 812.31(2)(c) (c) An above-ground discharge shall be provided for all school and high capacity wells except that an approved pitless unit or an approved weld-on pitless adapter may be installed if the welded or threaded joints are pressure tested for leakage as depicted in figure 29 or by a comparable testing procedure. The adapter or unit joints shall be tested and proven watertight under a pressure of not less than 14 psig. The pressure shall be maintained for at least 30 minutes. The pump installer shall notify the department at least 24 hours before testing, so that a department employee may witness the test.
NR 812.31(2)(d) (d) An above-ground discharge shall be provided for crystalline (granite) bedrock wells approved for installation of 25 or less feet of well casing pipe. When installing the above-ground discharge, the required neat cement grout surrounding the well casing pipe may not be removed.
NR 812.31(3) (3)Pitless unit connections to steel well casing pipe.
NR 812.31(3)(a)(a) When a well casing pipe is not terminated at the desired depth for the installation of an approved factory assembled pitless unit, the well casing pipe shall be cut off at the desired height, and the pitless unit may be welded or threaded and coupled to the top of the well casing pipe by one of the following methods:
NR 812.31(3)(a)1. 1. Cutting off the well casing pipe squarely, providing a bevel for the top of the well casing pipe and welding the beveled end of the unit to the beveled end of the well casing pipe.
NR 812.31(3)(a)2. 2. Cutting threads on the top of the well casing pipe with a pipe die and threading a full-standard recessed coupling watertight to the threaded end of the unit and to the top of the well casing pipe.
NR 812.31(3)(a)3. 3. Welding a pipe nipple, having threads on one end, beveled on the other end and meeting the requirements of s. NR 812.17 (2), to the cut off top beveled end of the well casing pipe and threading a full-length standard recessed coupling watertight to the threaded end of the unit and to the nipple. The top of the well casing pipe and the bottom of the pipe nipple to be welded shall both have beveled ends. If the pitless unit has female threads, the unit may be threaded watertight directly to the threaded end of the nipple.
NR 812.31(3)(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 or the outside contact surface of the coupling.
NR 812.31(3)(b) (b) When installing an approved factory assembled pitless unit, the following restrictions shall be followed:
NR 812.31(3)(b)1. 1. The threaded lower end of a pitless unit may not be welded to the cut-off end of a well casing pipe.
- See PDF for diagram PDFFigure 23. Examples of sanitary well seals.
- See PDF for diagram PDFFigure 24. Well seals for high capacity wells with submersible pumps.
NR 812.31(3)(b)2. 2. The threaded ends of a short model, factory-assembled pitless unit may not be welded to the top of a cut-off well casing pipe nor to the section of riser pipe extending from the unit to ground grade, except that the unit may be welded to the cut-off well casing pipe and to the riser pipe if the ends of the unit, the well casing pipe, and the riser pipe are cut and beveled according to par. (a) 1.
NR 812.31(3)(b)3. 3. Factory-assembled pitless units, including those fabricated with pitless receiver tanks, may not be connected to the well casing pipe by means of a compressible joint.
NR 812.31(4) (4)Pitless unit and pitless adapter connections to thermoplastic well casing pipe.
NR 812.31(4)(a)(a) Steel well casing pipe, pitless units or pitless adapters may not be welded after they are attached to thermoplastic well casing pipe. The thermoplastic coupling shall be threaded onto the pitless unit before it is solvent cemented to the top of the thermoplastic well casing pipe. This is depicted in Figure 31.
NR 812.31(4)(b) (b) Only approved lubricant specifically intended for use with thermoplastic well casing pipe may be used with threaded couplings used for pitless units and pitless adapters. A threaded joint shall be tightened no more than one full turn using a strap wrench.
NR 812.31(4)(c) (c) Threaded couplings may only be used for installation of pitless units or pitless adapters after placement of the well casing pipe.
NR 812.31(4)(d) (d) The portion of the well casing pipe above a short length pitless unit shall be steel or thermoplastic well casing pipe meeting the requirements of s. NR 812.17.
NR 812.31(4)(e) (e) When thermoplastic well casing pipe is extended above the ground surface, the thermoplastic pipe may be contained in a pumphouse or in an oversized steel pipe extending from below the frost depth to the top of the thermoplastic pipe.
NR 812.31(4)(f) (f) A permanent tag bearing the message “plastic well casing pipe" shall be attached to the top of the well.
NR 812.31(5) (5)Pitless receiver tanks. Pitless receiver units shall be approved by the department.
NR 812.31(5)(a) (a) Steel buried tanks that are part of an approved pitless unit shall have a minimum wall thickness of 1/4-inch and shall have an identifying seal, label or plate showing the manufacturer's name and model number.
NR 812.31(5)(b) (b) An approval shall be obtained for the installation of a buried pitless receiver tank having a gross volume greater than 1,000 gallons.
NR 812.31 History History: Cr. Register, January, 1991, No. 421, eff. 2-1-91; am. (intro.), (1), (2) (a), (b) and (d), (3) (a) 3., (5) (a) and Figure 28, cr. (5) (intro.), Register, September, 1994, No. 465, eff. 10-1-94; CR 13-099: am. (2), (4) (e) Register September 2014 No. 705, eff. 10-1-14.
NR 812.32 NR 812.32Pumps.
NR 812.32(1) (1)General pump installation requirements.
NR 812.32(1)(a)(a) Pump installations shall be carried out so the pump installation will be:
NR 812.32(1)(a)1. 1. Installed so it and its surroundings are in a sanitary condition;
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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.