Oklahoma Statutes

Okla. Stat. tit. 82, § 1020.5 (2026)

Determination of maximum annual yield

✓ current as of July 2026

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A. After completing the hydrologic survey, the Board shall make a tentative determination of the maximum annual yield of groundwater to be produced from each ground water basin or subbasin therein. Such determination must be based upon the following: 1. The total land area overlying the basin or subbasin; 2. The amount of water in storage in the basin or subbasin; 3. The rate of recharge to the basin or subbasin and total discharge from the basin or subbasin; 4. Transmissibility of the basin or subbasin; and 5. The possibility of pollution of the basin or subbasin from natural sources. B. The maximum annual yield of each major ground water basin or subbasin shall be based upon a minimum basin or subbasin life of twenty (20) years from the effective date of the order establishing the final determination of the maximum annual yield. C. For minor groundwater basins or subbasins therein, the tentative determination of the maximum annual yield shall be based upon present and reasonably foreseeable future use of groundwater from such basin or subbasin, recharge and total discharge, the geographical region in which the basin or subbasin is located and other relevant factors. Laws 1972, c. 248, § 5, eff. July 1, 1973; Laws 1993, c. 164, § 10, emerg. eff. May 10, 1993.

Notes of Decisions

Cited in 2 cases, 1984–2006 · leading case: Jacobs Ranch, L.L.C. v. Smith, 2006 OK 34 (Okla. 2006).

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Jacobs Ranch, L.L.C. v. Smith, 2006 OK 34 (Okla. 2006). · cites it 2× “82 O.S.2001, § 1020.5. Any regular permit to withdraw water from a groundwater basin must be based upon a completed hydrological study and a maximum annual yield determination.”

Oklahoma Water Resources Bd. v. Texas Cnty. Irrigation & Water Resources Assn., 711 P.2d 38 (Okla. 1984). · cites it 3× “Oklahoma Groundwater Law, 82 O.S.1981, § 1020.5 provides: "After making the hydrologic survey, the Board shall make a determination of the maximum annual yield of fresh water to be produced from each groundwater basin or subbasin.”

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