TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER r: WATER AND SEWAGE
PART 920 ILLINOIS WATER WELL CONSTRUCTION CODE
SECTION 920.10 DEFINITIONS
Section 920.10 Definitions
"Abandoned Well" means a water or monitoring well which is no longer used to supply water, or which is in such a state of disrepair that the well or boring has the potential for transmitting contaminants into an aquifer or otherwise threatens the public health or safety.
"Act" means the Illinois Water Well Construction Code [415 ILCS 30].
"Annular Space" means the opening between a well-hole excavation and the well casing or between a casing pipe and a liner pipe.
"Aquifer" means a water bearing formation that transmits water in sufficient quantity to supply a well.
"Bentonite Grout" means a manufactured grout product which is a mixture of sodium bentonite and water mixed at the manufacturer's recommended ratio; a mixture of granulated sodium bentonite and water which consists of a minimum of 20% solids bentonite clay and water that is equivalent to 9.4 pounds/gallon; a mixture of granulated sodium bentonite and clean drilling mud and water, weighing a maximum of 8.6 pounds/gallon, which consists of a minimum of 20% solids bentonite clay and clean drilling mud equivalent to 9.6 pounds/gallon; or sodium bentonite in the granulated or chip form. All bentonite products shall comply with NSF International requirements.
"Boring" means an excavation that is drilled, cored, driven, dug, or otherwise constructed which penetrates an aquifer or which may degrade the quality of the aquifer.
"Cement" means a mixture consisting of cement, sand and water in the proportion of one bag of cement (94 pounds) and an equal volume of dry sand to not more than 6 gallons of clean water.
"Chemical Injection System" means any device or combination of devices having hose, pipe or other methods of conveyance which connect directly to any water well through which a mixture of water, pesticides and fertilizers are mixed or are drawn and applied to land, crops, and/or plants at agricultural, nursery, turf, golf course, or greenhouse sites.
"Closed-Loop Well" means a sealed, watertight loop of pipe buried outside of a building foundation which is intended to recirculate a liquid solution through a heat exchanger.
"Community Water System" means a public water system which serves at least 15 service connections used by residents or regularly serves at least 25 residents for at least 60 days per year. (Section 9(a)(1) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(1)]).
"Consolidated Formation" means a geological formation which is firm such as rock.
"Construction" means all acts necessary to obtaining ground water by wells, including excavation of the well, but excluding the installation of permanent pumps and pumping equipment.
"Contaminant" means any physical, chemical, biological, or radiological substance or matter in water. (Section 9(a)(2) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(2)]).
"Department" means the Illinois Department of Public Health.
"Driven Water Well" means a well constructed by joining a drive point with lengths of pipe and then driving or jetting the assembly into the ground with percussion equipment or by hand.
"Environmental Protection Act" means the Environmental Protection Act [415 ILCS 5].
"Established Ground Surface" means the elevation of the ground surface at the site of the well.
"Finished Ground Surface" means the final or permanent elevation of the ground surface at the site of the well.
"Mechanically Driven" means a procedure by which a casing is fitted with a drive shoe and driven with a force sufficient to firmly seat the casing in rock or to the desired depth in unconsolidated formations.
"Modification" means any change, replacement, or other alteration of a water well. This includes, but is not limited to deepening of a well, replacing or repairing a casing, repair or replacement of well screen, installation of a pitless adapter and any other changes of a well structure.
"Monitoring Well" means a water well intended for the purpose of determining groundwater quality or quantity.
"Neat Cement Grout" means a mixture consisting of one bag of cement (94 pounds) to not more than six gallons of clean water. Additives such as bentonite or aquajel or similar materials may be added up to 6% by dry weight to increase fluidity or to control shrinkage.
"Non-Community Water System" means a public water system which is not a community water system, and has at least 15 service connections used by nonresidents, or regularly serves 25 or more nonresident individuals daily for at least 60 days per year. (Section 9(a)(4) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(4)]).
"Pitless Adapter Unit" means a factory assembled device consisting of a pitless well adapter, a mechanism which attaches to the well casing, and a well casing riser in a single unit, for the purpose of preventing contaminants from entering the well.
"Pitless Well Adapter" means an assembly of parts which will permit water to pass through the wall of the well casing or extension thereof; provides access to the well and to the parts of the water system within the well; and provides for the transportation of the water and the protection of the well and water therein, from surface or near surface contamination. Parts or appurtenances to a pitless well adapter include, but are not limited to, the vent, the device(s) on or in the wall of the casing, and the cap or cover on top of the casing or casing extension.
"Potential Primary Source" means any unit at a facility or site not currently subject to a removal or remedial action which:
is utilized for the treatment, storage, or disposal of any hazardous or special waste (as defined in Section 3 of the Environmental Protection Act) not generated at the site; or
is utilized for the disposal of municipal waste not generated at the site, other than landscape waste (as defined in Section 3 of the Environmental Protection Act) and construction and demolition debris; or
is utilized for the landfilling, land treating, surface impounding or piling of any hazardous or special waste (as defined in Section 3 of the Environmental Protection Act) that is generated on the site or at other sites owned, controlled or operated by the same person; or
stores or accumulates at any time more than 75,000 pounds above ground, or more than 7,500 pounds below ground, of any hazardous substances.
(Section 3.59 of the Environmental Protection Act [415 ILCS 5/3.59])
"Potential Secondary Source" means any unit at a facility or a site not currently subject to a removal or remedial action, other than a potential primary source, which:
is utilized for the landfilling, land treating, or surface impounding of waste that is generated on the site or at other sites owned, controlled or operated by the same person, other than livestock and landscape waste, and construction and demolition debris; or
stores or accumulates at any time more than 25,000 but not more than 75,000 pounds above ground, or more than 2,500 but not more than 7,500 pounds below ground, of any hazardous substances; or
stores or accumulates at any time more than 25,000 gallons above ground, or more than 500 gallons below ground, of petroleum, including crude oil or any fraction thereof which is not otherwise specifically listed or designated as a hazardous substance; or
stores or accumulates pesticides, fertilizers, or road oils for purposes of commercial application or for distribution to retail sales outlets; or stores or accumulates at any time more than 50,000 pounds of any de-icing agent; or
is utilized for handling livestock waste or for treating domestic wastewaters other than private sewage disposal systems as defined in the Private Sewage Disposal Licensing Act [225 ILCS 225].
(Section 3.60 of the Environmental Protection Act [415 ILCS 5/3.60])
"Potential Route" means abandoned and improperly plugged wells of all kinds, (i.e., those wells not plugged in accordance with the provisions of this Part) drainage wells, all injection wells, including closed loop heat pump wells, and any excavation for the discovery, development or production of stone, sand or gravel. (Section 3.58 of the Environmental Protection Act [415 ILCS 5/3.58])
"Pressure Grouting" means the placement of grout by a method using positive pressure.
"Private Water System" means any supply which provides water for drinking, culinary, and sanitary purposes and serves an owner-occupied single family dwelling. (Section 9(a)(5) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(5)])
"Public Water System" means a system for the provision to the public of piped water for human consumption, if the system has at least 15 service connections or regularly serves an average of at least 25 individuals daily at least 60 days per year. The term "public water system" includes any collection, treatment, storage or distribution facilities under control of the operator of such system and used primarily in connection with such system and any collection or pretreatment storage facilities not under such control which are used primarily in connection with such system. (Section 9(a)(6) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(6)])
"Pumping Water Level" means the elevation of the water surface in a well when water is discharged by pumping.
"Semi-Private Water System" means a water supply which is not a public water system, yet which serves a segment of the public other than an owner-occupied single family dwelling. (Section 9(a)(7) of the Illinois Groundwater Protection Act [415 ILCS 55/9(a)(7)])
"Site" means any location, place, tract of land, and facilities, including but not limited to buildings, and improvements used for purposes subject to regulation under the Environmental Protection Act. (Section 3.43 of the Environmental Protection Act [415 ILCS 5/3.43])
"Tremie Method" means an industry method of applying grout to the annular space by pumping grout through a pipe that is inserted into the annular space to fill the space with grout from the bottom upward until the annular opening is filled or to the point of pitless adapter attachment.
"Unconsolidated Formation" means a geological formation above bedrock such as sand or gravel which is caving in nature.
"Undesirable Water" means water that contains contamination that exceeds Class I Groundwater Standards adopted in the Groundwater Quality Standards Code (35 Ill. Adm. Code 620, Subpart B).
"Unit" means any device, mechanism, equipment, or area (exclusive of land utilized only for agricultural production). (Section 3.62 of the Environmental Protection Act [415 ILCS 5/3.62])
"Water Bearing Formation" means any geologic formation which contains water.
"Well Cap" means that portion of the pitless well adapter used to enclose the atmospheric termination of the casing, which shall overlap the top of the casing extension with a downward flange.
"Water Well" means any excavation that is drilled, cored, bored, washed, driven, dug, jetted or otherwise constructed when the intended use of such excavation is for the location, diversion, artificial re-charge, or acquisition of ground water, except monitoring wells.
"Well Seal" means an arrangement or device used to establish a watertight closure at the junction of a well pump or piping with the well casing cover at the upper terminal of the well, the purpose of which is to prevent contaminated water or other material from entering the well.
(Source: Amended at 22 Ill. Reg. 3973, effective April 1, 1998)