Oregon Administrative Rules › Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY › Division 44 - CONSTRUCTION AND USE OF WASTE DISPOSAL WELLS OR OTHER UNDERGROUND INJECTION ACTIVITIES (UNDERGROUND INJECTION CONTROL) › Section 340-044-0005 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
As used in these regulations unless the context requires
				otherwise:
(1) "Absorption Facility"
			 means a system receiving the flow from septic tanks or other treatment units to
			 distribute wastewater for oxidation and absorption by the soil within the zone
			 of aeration.
(2) "Aquifer" means an
			 underground zone holding water that is capable of yielding a significant amount
			 of water to a well or spring.
(3)
			 "Aquifer Storage and Recovery" means the storage of water from a separate
			 source that meets drinking water standards in a suitable aquifer for later
			 recovery and not having as one of its primary purposes the restoration of the
			 aquifer.
(4) "Authorized
			 Representatives" means the staff of the Department or of the local unit of
			 government performing duties for and under agreement with the Department as
			 authorized by the Director to act for the Department.
(5) "Best Management Practices (BMPs)" for
			 storm water means schedules of activities, prohibitions of practices,
			 maintenance procedures or other management practices to prevent or reduce the
			 pollution of waters of the state. BMPs for storm water may include operational
			 and structural source controls that minimize and prevent contaminants from
			 entering storm water as well as treatment BMPs that remove contaminants
			 contained in storm water runoff before disposal or discharge.
(6) "Cesspool" means a receptacle that
			 receives sewage, allows separation of solids and liquids, retains the solids
			 and allows liquids to seep into the surrounding soil through perforations in
			 the lining or an open bottom.
(7)
			 "Commercial" means a type of business activity that may distribute goods or
			 provide services, but does not involve the manufacturing, processing or
			 production of goods.
(8)
			 "Confinement Barrier" means a naturally occurring zone in subsurface soil or
			 bedrock that prevents the movement of liquids and contaminants into the
			 underlying groundwater aquifer and which may act as a confining unit to an
			 underlying groundwater aquifer.
(9)
			 "Construction" includes installation, alteration, repair or extension.
(10) "Contaminant" means any
			 chemical, ion, radionuclide, synthetic organic compound, microorganism, waste
			 or other substance that does not occur naturally in groundwater or that occurs
			 naturally but at a lower concentration.
(11) "Contamination" means introduction of a
			 contaminant.
(12) "Department"
			 means the Department of Environmental Quality.
(13) "Director" means the Director of the
			 Department of Environmental Quality or the Director's authorized
			 designee.
(14) "Drywell" means a
			 well, other than a subsurface fluid distribution system, completed so that its
			 bottom and sides are typically dry except when receiving fluids.
(15) "Fluid" means any material or substance
			 that flows or moves whether in a semisolid, liquid, sludge, gas or any other
			 form or state.
(16) "Governmental
			 Unit" means the state or federal government or any agency thereof.
(17) "Groundwater Point Source" means any
			 confined or discrete source of pollution where contaminants can either enter
			 into, or be conveyed by the movement of water, to public waters.
(18) "Hazardous Substance" means:
(a) Hazardous waste.
(b) Any substance defined as a hazardous
			 substance pursuant to section 101(14) of the federal Comprehensive
			 Environmental Response, Compensation and Liability Act.
(c) Oil or petroleum products.
(d) Any substance designated by the
			 Environmental Quality Commission under ORS 465.400.