1. (1) Samples and measurements taken for monitoring shall be representative of the monitored activity.

2. (2) The operator shall retain records of all monitoring information, including the following:

   1. (a) Calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this permit, and records of all data used to complete the application for this permit, for a period of at least three years from the date of the sample, measurement, report, or application. This period may be extended by request of the division at any time; and
   2. (b) The nature and composition of each injected fluid until three years after the completion of any plugging and abandonment procedures specified under Rule R644-16. The division may require the operator to deliver the records to the division at the conclusion of the retention period.

3. (3) Records of monitoring information shall include:

   1. (a) The date, exact place, and time of sampling or measurements;
   2. (b) The individual who performed the sampling or measurements;
   3. (c) The date analyses were performed;
   4. (d) The individual who performed the analyses;
   5. (e) The analytical techniques or methods used; and
   6. (f) The results of such analyses.
4. (4) Operators of Class VI wells shall retain records as specified in Subsections R644-8-3(4), R644-15-1(4), R644-16-1(5), R644-17-1(6), and R644-17-1(7).

KEY: oil and gas law

Date of Last Change: July 31, 2025

Authorizing, and Implemented or Interpreted Law: 40-11-3