Oklahoma Administrative Code
Title 252 - Department of Environmental Quality
Chapter 653 - Aquifer Storage and Recovery
Subchapter 1 - General Provisions
Section 252:653-1-5 - Definitions

The following words and terms, when used in this Chapter, shall have the following meaning, unless the context clearly indicates otherwise:

"Activity" means the construction or operation of an ASR treatment plant, or the construction and operation of an ASR recharge well, infiltration basin or any other water delivery mechanisms, including all ASR-related activities under this Chapter.

"Applicant" means any person who submits a permit application for ASR activities under this Chapter.

"Aquifer" for the purposes of this Chapter, means a subsurface water-bearing zone limited in extent by the area of hydrologic effect associated with the ASR project.

"Aquifer Storage and Recovery" ("ASR") means delivery of water into an aquifer for later recovery and use. For purposes of this Chapter, ASR activities shall not include groundwater recharge or augmentation through a natural connection with a farm pond or other impoundment otherwise authorized by law. ASR activities shall not include groundwater recharge or augmentation from nonpoint source runoff or stormwater discharge under the jurisdiction of the Oklahoma Department of Agriculture Food and Forestry pursuant to 2 O.S. §§ 2A-1 et seq. For purposes of this Chapter, ASR activities shall not include activities specifically authorized pursuant to 82 O.S. § 1020.2(G) or stormwater runoff management practices otherwise authorized by law. ASR does not constitute water reuse.

"ASR Project" means a project regulated under this Chapter; including ASR construction and operation activities.

"Area of Hydrologic Effect" means the areal extent of all hydrologic features, including surface and groundwater, determined by the projected extent of the underground stored water as calculated by using site-specific hydrogeologic information, and as influenced by the specific design and anticipated operation of the ASR project.

"Drinking Water Treatment Residuals" means wastewater (e.g. membrane filter reject water) from drinking water treatment processes.

"Infiltration Basin" means a shallow structure that is used to infiltrate water through permeable soils into an aquifer for ASR projects.

"Limited-Scale ASR Pilot Projects" means ASR pilot projects authorized by 27A O.S. § 2-6-110.

"Monitor Well" means any well used for the sampling or measurement with field instrumentation of any chemical or physical property related to ASR activities.

"Person" means any individual, corporation, industry, firm, partnership, association, venture, trust, institution, local governmental entity, or agency that seeks to conduct ASR activities under this Chapter.

"Raw Water" means untreated water from any source used in an ASR project.

"RWACP" means Raw Water and Aquifer Characterization Plan required by Subchapter 3 of this Chapter.

"Stored Water" means water in the aquifer that has been delivered pursuant to an ASR project.

"Treated Water" means raw water that has undergone treatment within a water treatment plant meeting the requirements of this Chapter.