020-28 Wyo. Code R. §§ 28-4 - Definitions
(a) The definitions in this Section supplement those definitions contained in W.S. §
35-11-103 of the Wyoming Environmental Quality Act.
(b) "Commercial oilfield waste disposal facility" (COWDF) means a facility that:
(i) Receives or has received produced water, exempt exploration and production waste, or non-hazardous non-exempt wastes approved by the Department, for treatment, storage, or disposal in pits, evaporation ponds, or surface impoundments; and
(ii) Receives or has received produced water, exploration and production waste, or other approved wastes from persons other than the owners and operators of the facility.
(c) "Exempt exploration and production (E&P) waste(s)" means drilling fluids, produced waters, and other wastewater associated with the exploration, development, or production of crude oil, natural gas or geothermal energy that are solid wastes but that are not identified as hazardous wastes under 40 CFR §
261.4(b)(5).
(d) "Groundwater" means subsurface water that fills available openings in rock or soil materials such that they may be considered water saturated under hydrostatic pressure.
Notes
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