Okla. Stat. tit. 82, § 82-1020.4: Hydrologic surveys and investigations

A. Prior to making orders establishing the tentative maximum

annual yield for major groundwater basins or subbasins therein, the

Oklahoma Water Resources Board shall make hydrologic surveys and

investigations.

B. Prior to making orders establishing the tentative maximum

annual yield for minor groundwater basins or subbasins therein, the

Board shall prepare reports using information from hydrologic

surveys and investigations of groundwater basins or subbasins having

substantially the same geological and hydrological characteristics

and data from wells in such basin or subbasins and other relevant

information.

C. The Board is authorized to cooperate with state, federal and

tribal agencies engaged in similar surveys and investigations and

may accept and use the findings of such agencies. At least every

twenty (20) years after issuance of the final order determining the

maximum annual yield, the Board shall review and update if necessary

the hydrologic surveys.