Oklahoma Administrative Code › Title 785 - Oklahoma Water Resources Board › Chapter 30 - Taking and Use of Groundwater › Subchapter 5 - Groundwater Permits › Section 785:30-5-10 - Marginal water permits

Current through Vol. 41, No. 20, July 1, 2024
(a) In addition to the requirements of this section, all marginal water
										permits must comply with rules in 30-5-5.
(b) Any well used for
										the marginal water permit must meet well construction rules as specified in OAC
										785:35-7-3(b)(2)
										so as to not contaminate fresh water resources.
(c) Wells used
										for marginal water permits shall be metered with the pumping rate logged and volume withdrawn recorded. Meter
										records shall be kept by the permit holder for the duration of the marginal water permit, and available to
										submit to the Board, upon request. The permit holder shall maintain records showing the meter is properly
										calibrated and make them available to the Board upon request.
(d)
										If the permit applicant can provide hydrologic information of the expected volume of marginal water
										underlying the proposed acreage of dedicated lands for the marginal water permit, the applicant may request
										the entire volume of marginal water to be permitted from the Board, with no annual limitation on withdrawal
										amount, until such time as the applicant withdraws the total permitted amount of marginal water.
(e) If the permit applicant cannot provide hydrologic information, as
										directed by subsection (d) of this section, the applicant will be allowed to dedicate land overlying the same
										geologic formation, as determined by the Board, containing the marginal water. In the event the Board
										determines the geologic formation not sufficient, the Board may allow the applicant to dedicate lands within
										the same county or contiguous county for use on the marginal water permit. Marginal water permits dedicated
										to lands based on geologic formation or county will be permitted a minimum of four acre-feet per
										acre
(f) As determined by staff, and as approved by the Board,
										water quality sampling measuring total dissolved solids shall occur after every 100 acre feet withdrawn and
										must be submitted to the Board to verify total dissolved solids are between five thousand and ten thousand
										parts per million. The well should be purged three well volumes prior to sampling. If that is not possible,
										alternate methods of purging can be considered. These can include, chemical parameter stabilization where pH
										and specific conductance remain constant for at least three consecutive measurements, or if the well is
										pumped dry prior to three well volumes, it can be considered sufficiently purged, or using low flow methods
										where a pump or sampler is placed directly at the screen.
(g)
										Water quality sampling results for total dissolved solids from an accredited laboratory must be submitted to
										the Board. The Board may approve annual sampling after two years of readings between five and ten thousand
										parts per million.
(h) When the permit holder becomes aware of
										total dissolved solids below five thousand parts per million, the permit holder must report to the Board
										within 48 hours. Staff may determine that the permit holder will be required to apply for permit
										authorization for a provisional temporary permit or a regular permit.