74:55:01:40.  Minimum requirements for monitor wells. In determining the number, location, and frequency of sampling of the monitor wells the following shall be considered:

          (1)  Whether or not any person is relying on the underground source of drinking water affected or potentially affected by the injection operation;

          (2)  The proximity of the injection operation to points of withdrawal of drinking water;

          (3)  The local geology and hydrology;

          (4)  The operating pressures and whether a negative pressure gradient is being maintained;

          (5)  The toxicity and volume of the injected fluid, the formation water, and the process by-products; and

          (6)  The density of the injection wells.

          Source: 8 SDR 71, effective December 24, 1981; 13 SDR 129, 13 SDR 141, effective July 1, 1987; transferred from § 74:03:11:40, July 1, 1996; 34 SDR 279, effective May 12, 2008.

          General Authority: SDCL 34A-2-93(15).

          Law Implemented: SDCL 34A-2-44.