Okla. Admin. Code § 252:652-7-1

Current through Vol. 42, No. 7, December 16, 2024

Section 252:652-7-1 - Class I injection well facilities

The following shall apply to owners and operators of all Class I injection well facilities:

(1)Annulus pressure and fluid. To maintain annulus pressure, a pressure tank shall be installed and equipped with the following:

(A) Sensors or measuring devices to enable monitoring of the fluid level in the tank;

(B) Clearly displayed design pressure and test pressure ratings; and

(C) Bursting discs and/or relief valves vented to the atmosphere, as appropriate.

(2)Monitoring taps. Injection and annulus pressure monitoring taps shall be provided for the use of the DEQ. The taps shall be connected near the locations on the well of the facility pressure monitor recorders. The taps shall be a one fourth (1/4) inch diameter National Pipe Thread female pipe fitting, valved and capped to prevent fluid loss when not in use. The taps shall be located to allow simultaneous pressure monitoring by facility pressure recorders and DEQ pressure gauges.

(3)Surface casing. The surface casing shall extend from the surface down to fifty feet or more below the lowest underground source of drinking water.

(4)Ambient monitoring. At least one monitoring well shall be installed and maintained by the owner. The DEQ may require additional wells to adequately monitor groundwater quality and level around the site. Specifications for the location, construction and maintenance of monitoring and/or observation wells must be approved by the DEQ prior to installation.

(A) Well(s) shall monitor the lowest underground source of drinking water beneath the site.

(B) Well(s) shall be located so that one or more wells are placed hydraulically down gradient from the site.

Okla. Admin. Code § 252:652-7-1

Added at 13 Ok Reg 2099, eff 7-1-96; Amended at 19 Ok Reg 1045, eff 6-1-02