"Artesian pressure" means water pressure in an aquifer sufficient enough to cause the groundwater level in a well to rise above the level at which it was encountered in the well whether or not the water flows at the ground surface.
"Artesian well" means a well in which the groundwater rises above the level at which it was encountered in the well whether or not the water flows at the ground surface.
"AWWA" means American water works association.
"Bail-down method" means a method for setting a screen whereby the screen is fitted with an open pipe sleeve or a bail-down shoe at its lower end and sediment is removed from below the screen to allow the screen to settle into place.
"Basement" means a subsurface structure or part of a structure in which the floor is entirely below grade.
"Bedrock" means any naturally formed consolidated or coherent material of the earth's crust, composed of one or more minerals, rock fragments or organic material that underlies any soil or other unconsolidated surficial material or is exposed at the surface. Bedrock includes, but is not limited to limestone (dolomite), sandstone, shale and igneous and metamorphic crystalline rock, including granite, rhyolite, quartzite, gabbro, basalt, gneiss, schist, diorite and greenstone.
"Cable-tool drilling machine" means a machine which uses a drill bit with a cutting edge at the bottom of a heavy string of tools suspended on a cable. The drillhole material is broken up by repeated lifting and dropping of the tools and bit.
"Cistern" means a tank in which rainwater is stored or collected.
"Clay" means an inorganic soil with grain size less than 0.074mm and with characteristics of low permeability and a plasticity index (PI) of more than 7.
"Clay slurry" means a fluid mixture of water, clean native clay and drill cuttings or sand having a mud weight of at least 11 pounds per gallon.
"Clear water waste" means cooling water and condensate drainage from refrigeration compressors and air-conditioning equipment, wastewater drainage from equipment chilling processes, condensate from steam heating systems or other equipment, foundation drainage water and other water containing no contaminants.
"Community water system" means a public water system which serves at least 15 service connections used by year-round residents or regularly serves at least 25 year-round residents. Any public water system serving 7 or more homes, 10 or more mobile homes, 10 or more apartment units, or 10 or more condominium units shall be considered a community water system unless information is available to indicate that 25 year-round residents will not be served.
"Comparable protection" means to substitute alternative protective measures to provide similar or equal sanitary protection to that provided by this chapter including the well location requirements of s. NR 812.08
"Conduit" means piping or tubing used to protect discharge or suction piping or electrical wires.
"Confining bed" means a geological layer of either unconsolidated material, usually clay or hardpan, or bedrock, usually shale, that is all or partially saturated with water and having permeability low enough relative to the aquifer to give the water in the aquifer artesian head.
"Contaminant" means any physical, chemical, biological or radiological substance or matter in water.
"Crawl space" means the space below a building having no basement; the space being at ground grade, in a depression or in an excavation.
"DHS" means the department of health services.
"Department" means the department of natural resources.
"Detention basin" means an excavation into soils having low permeability or installed with a liner having low permeability, not having a permanent pool of water, designed and constructed to temporarily hold storm water to reduce peak discharges of storm water for flood control and to allow for the physical settling of pollutants.
"Detention pond" means an impoundment that has a permanent pool of water and is designed to have the capacity to temporarily store storm water runoff to provide flood control and to allow for the physical settling of pollutants.
"Ditch" means a long narrow excavation dug in the earth for the drainage of surface water.
"Downslope location" means a well or reservoir is located directly down-gradient from a contamination source or a potential contamination source, regardless of the presence or absence of a structure between the well and the source, when the ground surface elevation at the well or reservoir is lower than the elevation at the source, and surface water that runs over the source would travel within 8 feet of the well or reservoir.
"Drawdown" means the extent to which the water level or water pressure in and near a well is lowered when water is pumped or flows from the well.
"Drilled wells" means wells or drillholes constructed by digging, boring, drilling, jetting, driving or similar methods. Drilled wells do not include driven point (sand point) wells unless driving the point is combined with a process to remove material below the 10-foot depth.
"Drillhole" means an excavation, opening or driven point well deeper than it is wide that extends more than 10 feet below the ground surface.
"Heat exchange drillhole" means a drillhole used for closed loop heat exchange purposes.
"Lower drillhole" means that part of a drillhole below the vertical zone of contamination or below the well casing pipe.
"Upper enlarged drillhole" means a drillhole larger in diameter than the well casing pipe.
"Drilling mud" means a fluid mixture of water, sodium bentonite, drill cuttings and any approved additives.
"Driven point well" or "sand point well" means a well constructed by joining a drive point with lengths of pipe, and driving the assembly into the ground with percussion equipment or by hand, but without first removing material below the 10-foot depth.
NR 812.07 Note
Note: All other types of wells, including those constructed by a combination of jetting and driving, are drilled wells.
"DSPS" means the department of safety and professional services.
"Dug well" means a well consisting of a large diameter hole, deeper than it is wide, constructed into the ground, usually by hand, but if by mechanical means, by methods other than drilling, jetting or boring; and within which the side walls are supported by a curbing.
"Established ground surface" means the permanent elevation of the surface of the site of a well.
"Existing installations" means water systems which were constructed or reconstructed before February 1, 1991.
"FDA" means U.S. food and drug administration.
"Feature" means any well construction or pump installation item for which there is a specification in this chapter.
"Filter strip" means an area of vegetation designed and constructed in accordance with Soil Conservation Service Standard 393 adjacent to an animal yard or animal shelter or adjacent to a manure storage facility, used to remove sediment and organic matter from the runoff from the facility.
"Floodfringe" means that portion of the floodplain outside of the floodway which is covered by flood water during the regional flood. The term floodfringe is generally associated with standing water rather than flowing water.
"Floodplain" means that land which has been or may be covered by flood water during the regional flood. The floodplain includes the floodway, floodfringe, shallow depth flooding, flood storage and coastal floodplain areas.
"Floodway" means the channel of a river or stream and those portions of the floodplain adjoining the channel required to carry the regional flood discharge.
"Flowing well" means a well from which groundwater flows above the ground surface without pumping.
"Flushing" means causing a rapid intermittent flow of water from a well by pumping, bailing or similar operation.
"Grease interceptor or trap" means a receptacle designed to intercept and retain grease or fatty substances.
"Groundwater" means subsurface water in a zone of saturation.
"Heating-airconditioning air shaft" means a vertical, lined excavation extending deeper than 10 feet below the ground surface used for the intake or exhaust of air to or from a heating or air conditioning.
"High capacity well" means a well constructed on a high capacity property.
"High capacity property" means one property on which a high capacity well system exists or is to be constructed.
"High capacity well system" means one or more wells, drillholes or mine shafts used or to be used to withdraw water for any purpose on one property, if the total pumping or flowing capacity of all wells,
drillholes or mine shafts on one property is 70 or more gallons per minute based on the pump curve at the lowest system pressure setting, or based on the flow rate.
"Holding tank" means a water tight receptacle used for the collection and holding of sewage.
"Hydrofracturing" means hydraulic fracturing of an aquifer by injecting a fluid into the well under pressures great enough to open the bedrock along bedding planes, joints and fractures and may include injecting sand or a similar approved material to hold the crevices open when the pressure is removed.
"Infiltration basin" means an excavation into permeable soils designed and constructed to temporarily store surface water runoff and allow it to infiltrate so as to provide flood control, groundwater recharge and to allow for the settling of pollutants.
"Influent sewer" means a sanitary collector sewer beyond the last manhole prior to a wastewater treatment plant.
"Landfill" means a solid waste disposal site or facility, not classified as a landspreading facility or a surface impoundment facility, where solid waste is disposed on land. This term includes existing, proposed and abandoned landfills, open dumps, one-time disposal sites as defined in ch. NR 502
, small demolition landfills as defined in ch. NR 502
, mining waste disposal sites as defined in ch. NR 182
and hazardous waste disposal facilities as defined in chs. NR 660
"Landing collar" means a metal ring welded near the bottom of the inside of a string of well casing pipe to prevent a drillable grouting plug from dropping out the bottom of the well casing pipe during cement grouting.
"Licensed" means registered by the department to engage in the business of well drilling or pump installing in Wisconsin.
"Lift station" means a wastewater collection and pumping structure that collects wastewater from collector sewers and pumps it through force main sewers.
"Limits of filling", for a landfill, means the outermost limit at which waste at a landfill facility has been disposed of, or approved, or proposed for disposal.
Protective well casing pipe installed subsequent to initial construction to seal off a zone of contamination; or
Well casing pipe installed during or subsequent to the initial well construction to seal off a caving or sloughing formation or to eliminate turbidity.
"Liquid waste" means process wastewater from food processing, product manufacturing and contaminated water removed from underground or open pit workings of a mine. This definition does not include clear water waste.
"Liquid waste disposal system" means a facility for disposing of liquid wastes consisting of a ridge and furrow system, a landspreading system including sludge drying beds at a wastewater treatment plant, a wastewater spray irrigation system, or an absorption, seepage, retention, storage or treatment pond or lagoon.
"Manure hopper or reception tank" means a liquid-tight concrete, steel or otherwise fabricated vessel primarily for the purpose of facilitating conveyance of liquid or solid manure from one point to another in an animal waste handling system.
"Manure stack" means solid manure stacked for more than 120 days on the ground surface or on a paved surface.
"Manure storage structure, earthen" means an impoundment made by excavation or mounding of soil for treatment or temporary storage of liquid or solid animal wastes. This term includes structures lined with clay, bentonite or synthetic film materials and structures consisting of slats or drainage openings ("picket dams") used to store solid or semi-solid animal waste material from which runoff occurs. This term also includes fabricated manure storage structures that are not watertight situated above, at or below ground grade.
"Manure storage structure, fabricated" means a concrete, steel or otherwise fabricated structure used for treatment or temporary storage of liquid or solid animal waste.
"Monitoring well" means a well or drillhole constructed for the purpose of obtaining information on the physical, chemical, radiological or biological characteristics of the groundwater.
"Near surface water" means water in the zone immediately below the ground surface. It includes, but is not limited to seepage from barnyards, leaching pools and disposal beds or leakage from sewers, drains and similar sources of contaminated water.
"Non-community water system" means a public water system that serves fewer than 25 year-round residents.
"Nominal diameter" means the inside pipe diameter for pipe sizes 1-inch diameter through 12-inch diameter and means the outside pipe diameter for pipe sizes greater than 12-inch diameter.
"Nonpotable" means water supplied for purposes other than human consumption, sanitary use or the preparation of food or pharmaceutical products.
"One property" means all contiguous land controlled by one owner, lessee, or any other person having a possessory interest. Lands under single ownership bisected by highways or railroad right-of-ways are considered contiguous.
"Outcrop" means bedrock exposed at the ground surface, including roadcuts.
"Percussion drilling method" means a drilling method using a cable-tool drilling machine or a drilling method whereby the permanent well casing pipe is driven, or is set into an upper enlarged drillhole and then driven; soil or rock material inside is broken up or crushed with a drill bit; and the drill cuttings are removed from inside or just below the casing pipe. This method may be performed with a cable-tool drilling machine, a rotary machine with a hammer or with a casing hammer.
"Permit" means a well location or pump installation permit issued by a county authorized to administer ch. NR 812
under ch. NR 845
"Person" means an individual, corporation, company, association, cooperative, trust institution, partnership, state, public utility, municipality, or federal, state or interstate agency.
"Pet waste disposal unit" means a dry well, seepage bed, seepage pit, seepage trench, seepage mound or an absorption field used for the disposal of pet waste material.
"Pit" means any structure that is completely or partially below the ground surface or below a building floor used for the housing of wells, offset pumps, pressure tanks or valves. Subsurface well or pumprooms, alcoves, adjoining a basement foundation structure are pits.
"Pitless adapter or unit" means a mechanical device attached to the well casing pipe, usually below the frost level, for underground conveyance of water from the well.
"Weld-on pitless adapter" means a pitless adapter attached to a cut opening in the well casing pipe by a weld applied at the well site.
"Factory assembled pitless unit" means a pitless unit assembled and pressure tested for leakage at the factory, including a unit fabricated with a pitless receiver tank.
"Potable" means water supplied for human consumption, sanitary use or for the preparation of food or pharmaceutical products.
"Preparation of food products" means washing, cooling, cooking, pasteurizing, bottling, canning or otherwise preparing food for human consumption and includes the washing of utensils and equipment used in the production or preparation of food.
"Pressure or box elbow" means a special concentric pipe fitting used to raise the horizontal pressurized concentric piping arrangement between a well and an offset pump vertically to the specified elevation above the floor.