S.D. Admin. R. 74:29:11:07
In addition to the requirements of SDCL 45-6B-7(9), before mining a new area or section in a production zone, the operator shall submit a baseline ground water quality sampling plan to include an adequate number of wells and samples to adequately characterize baseline water quality in production and nonproduction zones in and adjacent to the new mining area. Water samples may not be taken until the specific conductivity, temperature, and pH have stabilized. These samples shall be analyzed for the parameters designated by the department. All baseline wells shall be sampled at least once every month for a minimum of six months before any mining activities. If a well shows results indicating a statistically significant variance for a control parameter, whether due to laboratory error or natural fluctuation, the department may require additional samples be taken. The sample results for each well shall be submitted to the department.
The department shall consider the baseline water quality to determine the upper limit value of a control parameter which, if exceeded, indicates that an injected fluid may be present.
S.D. Admin. R. 74:29:11:07
General Authority: SDCL 45-6B-81.
Law Implemented: SDCL 45-6B-7, 45-6B-41.