Oklahoma Administrative Code (Last Updated: March 11, 2021) |
TITLE 252. Department of Environmental Quality |
Chapter 606. Oklahoma Pollutant Discharge Elimination System (OPDES) Standards |
Subchapter 11. Tests and Reports |
SECTION 252:606-11-4. Records
Latest version.
- (a) Operating records. Keep a daily record of the control tests required in Appendix A of this Chapter on forms prepared or approved by the DEQ. Make entries for the date samples are collected and indicate where and by whom the observations were made. If monitoring beyond the minimum requirements, include the results of all analyses on the monthly report and use them to calculate weekly or monthly averages. For each required measurement or sample, record:(1) The date, exact place and time of sample and indicate whether a grab sample or composite.(2) The dates the analyses were performed.(3) The laboratory and name of the operator who performed each analysis.(4) The analytical techniques or methods used.(5) The results of all analyses.(6) The instantaneous flow at the time of grab sample collection or a record of each flow taken while collecting a composite sample.(7) The method of composite sample calculations and other calculations.(b) Maintain records. The facility owner must keep records of all control and compliancetesting, a copy of the monthly operational report and all laboratory work sheets for at least three (3) years. These records must be available for inspection by DEQ personnel.