Illinois Administrative Code › Title 77 - PUBLIC HEALTH › Part 920 - WATER WELL CONSTRUCTION CODE › Section 920.10 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
"Abandoned Well" means a water or monitoring well that is no
				longer used to supply water, or that 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 saturated (with groundwater) soils and
				geologic materials which are sufficiently permeable to readily yield
				economically useful quantities of water to wells, springs, or streams under
				ordinary hydraulic gradients.
(Section 3(b) of the Illinois
				Groundwater Protection Act [415 ILCS
				55/3(b) ])
"Bentonite Grout" means a manufactured grout product that is a
				mixture of sodium bentonite and water mixed at the manufacturer's recommended
				ratio; a mixture of granulated sodium bentonite and water that consists of a
				minimum of 20 percent solid bentonite clay and water that is equivalent to 9.4
				pounds/gallon; or sodium bentonite in the granulated or chip form. All
				bentonite products shall comply with National Sanitation Foundation (NSF)
				International requirements.
"Borehole" also known as "drill hole" means an excavation that
				is drilled, cored, driven, dug or otherwise constructed that penetrates an
				aquifer or that 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 that connect directly
				to any water well through which a mixture of water, pesticides and fertilizers
				is mixed or is drawn and applied to land, crops 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 intended to re-circulate a liquid
				solution through a heat exchanger but is limited to the construction of the
				borehole, piping in the borehole, heat exchange fluid and the grouting of the
				borehole and does not include the piping and appurtenances used in any other
				capacity. "Closed loop well" does not include any horizontal closed loop well
				systems where grouting is not necessary by law or standard industry
				practice.
(Section 3(h) of the Act) "Closed Loop Heat Pump Well" means
				the same as "Closed Loop Well".
"Closed Loop Well Contractor" means any person who
				installs closed loop wells for another person. "Closed loop well contractor"
				does not include the employee of a closed loop contractor.
(Section
				3(j) of the Act)
"Closed Loop Well System" means a clustered group of closed
				loop wells that serve the same facility.
"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)
"Consolidated Formation" means a geological formation that is
				firm rock referred to as bedrock.
"Construction" means all acts necessary to obtaining
				ground water by any method, including without limitation the location of and
				the excavation for the well, but not including prospecting, surveying or other
				acts preparatory
to those activities
, nor the installation of
				pumps and pumping equipment.
(Section 3(a) of the Act)
"Contaminant" means any physical, chemical, biological,
				or radiological substance or matter in water
. (Section 9(a)(2) of the
				Illinois Groundwater Protection Act)
"Creviced, Consolidated Formation" is a consolidated formation
				characterized by fractures.
"Department" means the Illinois Department of Public
				Health.
"Detention Pond" is an engineered structure designed to store
				storm water from a rain event. The elevation of the outlet structure designed
				to meet the release rate requirement is equivalent to the lowest elevation of
				the pond.
"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.
"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.
"Flowing Artesian Well" means a well in which the water from
				the confined aquifer rises above the finished ground surface.
"Ground Water"
or "Groundwater"
means
				water of underground aquifers, streams, channels, artesian basins, reservoirs,
				lakes and other water under the surface of the ground, whether percolating or
				otherwise.
(Section 2(2) of the Illinois Water Well and Pump
				Installation Contractor's License Act)
"Horizontal Closed Loop Well Systems" means any open cut
				excavation where a watertight loop of pipe is buried outside of a building
				foundation that is intended to re-circulate a liquid solution through a heat
				exchanger.
"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 the alteration of the structure of an
				existing water well, including, but not limited to, deepening; elimination of a
				buried suction line; installation of a liner; replacing, repairing or extending
				casing; or replacement of a well screen. Pertaining to closed loop wells,
				"modification" also means any alteration to the construction of the borehole of
				an existing closed loop well, including, but not limited to, regrouting and
				installation of additional boreholes.
"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 6 gallons of clean water. Bentonite or
				similar material may be added up to 6 percent 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)
"Pitless Adapter Unit" means a factory assembled device
				consisting of a pitless well adapter, a mechanism that 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 that will
				permit water to pass through the wall of the well casing or extension of the
				wall; 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 in the well, from surface or near surface contamination.
				Parts or appurtenances to a pitless well adapter include, but are not limited
				to, the vent, the device or devices on or in the wall of the casing, and the
				cap or cover on top of the casing or casing extension.
"Potable" means generally fit for human consumption in
				accordance with accepted water supply principles and practices.
(Section 3(h) of the Illinois Groundwater Protection Act)
"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 3.345 of the Environmental Protection Act)
"Potential Route" means abandoned and improperly
				plugged wells of all kinds
(i.e., those wells not plugged in
				accordance with 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
.
This term
				does not include closed-loop heat pump wells using
United States
				Pharmacopeia (
USP
)
food grade propylene
				glycol.
(Section 3.350 of the Environmental Protection Act)
"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
. (Section 3.355
				of the Environmental Protection Act)
"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)
"Public Water System" means a system for the provision
				to the public of water for human consumption through pipes or other constructed
				conveyances, 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. A
				public water system is either a community water system (CWS) or a non-community
				water system (non-CWS). 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)
"Pumping Water Level" means the depth of the water surface in a
				well from the ground surface, top of casing or other established datum when
				water is discharged by pumping.
"Retention Pond" is an engineered structure designed to store
				storm water from a rain event. The elevation of the outlet structure designed
				to meet the release rate requirement is higher than the elevation of the pond
				base.
"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)
"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 3.460 of the Environmental Protection Act)
"Storm Sewer" means a sewer that is used for conveying
				rainwater, surface water, groundwater, subsurface water, site drainage,
				condensate, cooling water or other similar liquids (excluding treated or
				untreated domestic sewage) to a point of discharge.
"Thermal Grout" is a Department approved grout specifically
				developed to provide a surface and aquifer to aquifer seal and enhance the heat
				transfer in a closed loop well. Department approved closed loop well grouts
				shall have permeability no greater than 1 x 10-7
				centimeters per second and all bentonite products shall comply with National
				Sanitation Foundation (NSF) International requirements. The Department will
				maintain a list of approved closed loop well grouts on its website at
http://www.dph.illinois.gov/
.
"Tremie Method" means pumping grout through a pipe that is
				inserted into the annular space to fill the space from the bottom upward to the
				ground surface or to the point of pitless adapter attachment.
"Unconsolidated Formation" means a geological formation above
				bedrock, such as sand or gravel, that 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 3.515 of the Environmental Protection Act)
"Water-Bearing Formation" means any geologic formation that
				contains water.
"
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
				recharge, or acquisition of ground water, but such term does not include an
				excavation made for the purpose of obtaining or prospecting for oil, natural
				gas, minerals or products of mining or quarrying or for inserting media to
				repressure
an
oil or natural gas bearing formation or for
				storing petroleum, natural gas or other products or for observation or any
				other purpose in connection with the development or operation of a gas storage
				project.
(Section 3(e) of the Act)
"Well" means a bored, drilled or driven shaft, or dug
				hole, the depth of which is greater than the largest surface
				dimension.
(Section 3.555 of the Environmental Protection Act)
"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.
"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.