Connecticut Administrative Code › Title 22a - Environmental Protection › 430 - Water Pollution Control › Section 22a-430-8 - Underground injection control

Current through July 10, 2024
(a)
Definitions.
"Aquifer" means a geological formation, group of
			 formations, or part of a formation that is capable of yielding a significant
			 amount of water to a well or spring.
"Average Daily Flow" means the average total daily flow during
				an operating day computed over a minimum of twenty (20) consecutive operating
				days.
"Commercial Subsurface Sewage Disposal System" means a
				subsurface sewage disposal system receiving domestic sewage from any
				non-residential building or buildings on the same lot or within the same
				project as the building or buildings served.
"Contaminant" means any physical, chemical, biological, or
				radiological substance or matter in water.
"Domestic Sewage" means sewage that consists of water and human
				excretions or other waterborne wastes incidental to the occupancy of a
				residential building or a non-residential building but not including
				manufacturing process water, cooling water, wastewater from water softening
				equipment, commercial laundry wastewater, blowdown from heating or cooling
				equipment, water from cellar or floor drains or surface water from roofs, paved
				surface or yard drains.
"Fluid" means any material or substance which is capable of
				movement, whether in a semisolid, liquid, sludge, gas, or any other physical
				state.
"Formation" means any body of rock characterized by a degree of
				lithologic homogeneity which is prevailingly, but not necessarily, tabular and
				is mappable on the earth's surface or traceable in the subsurface.
"Hazardous Waste" means any waste material which may pose a
				present or potential hazard to human health or the environment when improperly
				treated, stored, transported, or disposed of or otherwise managed including
				hazardous waste identified in accordance with Section 3001 of the Resource
				Conservation and Recovery Act of 1976 (
				42 U.S.C.
				6901,
et seq.
), as
				amended.
"Household Subsurface Sewage Disposal System" means a
				subsurface sewage disposal system receiving domestic sewage from a single
				residential building and/or associated outbuildings where such a system is
				located on the same lot as the building served or on an easement available for
				the installation, operation and maintenance of the system and which is recorded
				on the land records.
"Injection" means the subsurface emplacement of fluids by
				gravity or greater pressure through a well.
"Operator" means the person or municipality responsible for
				operating and maintaining a well.
"Subsurface Sewage Disposal System" means a system receiving
				domestic sewage consisting of a house sewer, a septic tank followed by a
				leaching system, any necessary pumps or siphons, and any groundwater control
				system on which the operation of the leaching system is dependent.
"Underground Source of Drinking Water (USDW)" means an aquifer
				or a portion of an aquifer which supplies any public water supply system; or
				which contains a sufficient quantity of groundwater to supply a public water
				supply system and either currently supplies drinking water for human
				consumption, or contains fewer than 10,000 milligrams/litre total dissolved
				solids; and which is not an exempt aquifer under 146 CFR 146.04.
"Well" means a bored, drilled, or driven shaft, or a dug hole,
				the depth of which is greater than its largest surface dimension or a
				commercial subsurface sewage disposal system, household subsurface sewage
				disposal system, or other subsurface sewage disposal system.
(b) The injection of fluids through the
			 following classes of wells is prohibited, and no person or municipality shall
			 construct, install or maintain such wells:
(1)
Class I
(A) Wells used by
			 generators of hazardous wastes or owners or operators of hazardous waste
			 management facilities or other industrial, commercial, institutional, or
			 municipal facilities, to inject fluids beneath the lowermost formation
			 containing an underground source of drinking water.