North Dakota Administrative Code
Title 43 - Industrial Commission
Article 43-02 - Mineral Exploration and Development
Chapter 43-02-02.2 - In Situ Leach Mining Rules
Section 43-02-02.2-58 - 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.

These records must be retained for at least three years from the date of the sample, measurement, or report. This period may be extended by the department. The department may require the operator to deliver a complete set of copies of the records to the department when the retention period ends.