South Dakota Administrative Rules
Title 74 - Department of Environment And Natural Resources
Article 74:29 - Mined land reclamation
Chapter 74:29:11 - In situ leach mining
Section 74:29:11:45 - Maintenance and retention of records

(1) Laboratory analyses, including a description of or reference for the procedures and methods used for sample collection, preservation, and quality control and the name, address, telephone number, and laboratory identification number of the laboratory performing the analyses;

(2) Records of all data used to complete permit and license applications and any supplemental information;

(3) Calibration and maintenance records and all original records of continuous monitoring instrumentation, copies of all reports required by the permit, and records of all data used to complete the permit application;

(4) The nature and composition of all injected fluids until three years after the completion of any plugging and abandonment procedures; and

(5) Information requested by the department for inclusion in the annual report.

Records shall be retained for a period of at least three years from the date of the sample, measurement, or report. This period may be extended by request of the department at any time. The department may require the operator to deliver the records to the department at the conclusion of the retention period.