Rule 3745-535-02 | Definitions.
If a term used in this chapter is defined in rule 3745-500-02 of the Administrative Code, the definition of the term used in rule 3745-500-02 of the Administrative Code is applicable to this chapter unless the term is defined in this rule. As used in this chapter:
(A)
(1) "Annular space" means the space between the borehole and the casing.
(2) "Aquifer" means consolidated or unconsolidated geological units, formations, or series of units or formations that are hydraulically interconnected and that have the ability to receive, store, transmit, and yield water to wells or springs.
(3) "Aquifer system" means one or more geological units or formations that are wholly or partially saturated with water and are able to receive, store, transmit, and yield significant amounts of water to wells or springs.
(B) "Beneficial use byproduct" has the same meaning as in rule 3745-599-02 of the Administrative Code.
(C) [Reserved.]
(D) [Reserved.]
(E) [Reserved.]
(F) "Facility" means solid waste landfill.
(G)
(1) "Groundwater" has the same meaning as ground water.
(2) "Groundwater monitoring program" means the groundwater detection monitoring program, groundwater quality assessment program, the compliance monitoring program, and corrective measures program pursuant to rules 3745-535-800 to 3745-535-860 of the Administrative Code, including all plans and reports submitted under those programs.
(3) "Groundwater monitoring system" means the network of monitoring wells installed around a solid waste landfill to monitor for waste-derived releases from the emplaced waste. The groundwater monitoring system includes but is not limited to monitoring wells designated in a monitoring plan for sample withdrawal, piezometers for water level measurements, background or upgradient wells, and any monitoring wells installed to define rate, extent, and concentration.
(H) "Household waste" means any solid waste derived from households, including single and multiple residences, hotels and motels, bunkhouses, ranger stations, crew quarters, campgrounds, picnic grounds, and day-use recreation areas.
(I) "Industrial landfill" has the same meaning as in rule 3745-30-01 of the Administrative Code.
(J) [Reserved.]
(K) [Reserved.]
(L) [Reserved.]
(M) [Reserved.]
(N) [Reserved.]
(O) [Reserved.]
(P)
(1) "Phase" means a discrete area of a solid waste landfill, that has been designated to facilitate the systematic construction, operation, and closure of the solid waste landfill. A phase is a discrete area that is part of a unit.
(2) "Polychlorinated biphenyls (PCB) waste" has the same meaning as in 40 C.F.R. Part 761.
(3) "PQL" means practical quantitation limit.
(Q) "Qualified groundwater scientist" means a scientist or engineer who has received a baccalaureate or post-graduate degree in the natural sciences or engineering and has at least five years relevant experience in groundwater hydrology or hydrogeology and related fields to enable that individual to make sound professional judgments regarding groundwater monitoring, contaminant fate and transport, and corrective measures.
(R) "Residual landfill" has the same meaning as in rule 3745-30-01 of the Administrative Code.
(S)
(1) "Secondary aluminum waste" has the same meaning as in section 3734.02 of the Revised Code.
(2) "Significant zone of saturation" means a zone of saturation that transmits water at a faster rate than the surrounding geologic units and may act as a preferential pathway of migration away from the limits of solid waste placement. A significant zone of saturation need not be capable of yielding a significant amount of water to a well or developed spring.
(T) [Reserved.]
(U) "Unit" means a discrete area within the limits of waste placement of a solid waste landfill, for which the owner or operator is authorized to dispose of solid waste, that is delineated by the owner or operator for the purpose of complying with the applicable siting, construction, operational, closure or post-closure care, groundwater monitoring, and financial assurance requirements.
(V) [Reserved.]
(W) [Reserved.]
(X) [Reserved.]
(Y) [Reserved.]
(Z) "Zone of saturation" means that part of the earth's crust, excluding the capillary zone, in which all voids are filled with water.
Last updated March 1, 2026 at 4:25 AM
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