Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 840 - SITE-SPECIFIC CLOSURES OF COAL COMBUSTION WASTE SURFACE IMPOUNDMENTS › Subpart A - CLOSURE OF ASH POND D, HUTSONVILLE POWER STATION › Section 840.104 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
Unless otherwise specified, the definitions of the
				  Environmental Protection Act (Act) [415 ILCS 5 ] apply to this Subpart. The
				  following definitions also apply:
"Agency" means the Illinois Environmental Protection
				  Agency.
"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. [415 ILCS
				  55/3(b) ]
"Ash Pond D" means the surface impoundment designated as Ash
				  Pond D, located at the Hutsonville Power Station, 15142 East 1900 Avenue,
				  Hutsonville, Crawford County, Illinois.
"Board" means the Illinois Pollution Control Board.
"Contaminant" means any solid, liquid or gaseous matter, any
				  odor, or any form of energy, from whatever source. [415 ILCS
				  5/3.165 ]
"Hutsonville Power Station" or "Hutsonville site" means the
				  electric generating station located at 15142 East 1900 Avenue, Hutsonville,
				  Crawford County, Illinois.
"Lower zone of underlying aquifer" means the sands and
				  gravels beneath the fine-grained surficial alluvium within the Wabash River
				  bedrock valley.
"Off-site" means any property that is not part of the
				  Hutsonville Power Station.
"On-site" means the same or geographically contiguous
				  property constituting the Hutsonville Power Station.
"Operator" means the person responsible for the operation of
				  Ash Pond D.
"Owner" means the person who owns Ash Pond D.
"Person" is any individual, partnership, co-partnership,
				  firm, company, limited liability company, corporation, association, joint stock
				  company, trust, estate, political subdivision, State agency, or any other legal
				  entity, or their legal representative, agent or assigns. [415 ILCS
				  5/3.315 ]
"Professional engineer" means a person who has registered and
				  obtained a seal pursuant to the Professional Engineering Practice Act of 1989
				  [225 ILCS 325 ].
"Professional geologist" means a person licensed under the
				  laws of the State of Illinois to practice as a professional geologist.
				  [415 ILCS 5/57.2
				  ]
"Site" means any location, place, tract of land and
				  facilities, including but not limited to buildings, and improvements used for
				  purposes subject to regulation or control by the Act or regulations thereunder.
				  [415 ILCS 5/3.460 ]
"Statistically significant" means the application of a
				  Mann-Kendall analysis performed at 95 percent confidence to determine whether
				  consecutive groundwater sampling data showing greater or lesser concentrations
				  of constituents is statistically significant.
"Upper zone of underlying aquifer" means surficial sands and
				  sandstones overlying shale west of the Wabash River bedrock valley, and sand
				  lenses within the surficial fine grained alluvium.