Tenn. Comp. R. & Regs. 1200-03-18-.87 - QUALITY CONTROL PROCEDURES FOR CONTINUOUS EMISSION MONITORING SYSTEMS (CEMS)

(1) Each owner or operator of a CEMS shall develop and implement a CEMS QC program. At a minimum, each QC program shall include written procedures that describe in detail step-by-step procedures and operations for each of the following:

(a) Initial and routine periodic calibration of the CEMS.

(b) Calibration drift (CD) determination and adjustment of the CEMS.

(c) Preventative maintenance of the CEMS (including spare parts inventory).

(d) Data recording, calculations, and reporting.

(e) Accuracy audit procedures including sampling and analysis methods.

(f) Program of corrective action for malfunctioning CEMS.

(2) Out-of-control conditions are as follows:

(a) If either the zero (or low-level) or high-level CD exceeds twice the applicable drift specification in 40 C.F.R. Part 60, Appendix B, as of July 1, 1991, for five consecutive daily periods, the CEMS is out-of-control.

(b) If either the zero (or low-level) or high-level CD exceeds four times the applicable drift specification in 40 C.F.R. Part 60, Appendix B, as of July 1, 1991, during any CD check, the CEMS is out-of-control.

(c) If the CEMS fails a performance audit (PA), the CEMS is out-of-control, and the owner or operator shall take necessary corrective action to eliminate the problem. Following the corrective action, the source owner or operator shall reconduct the appropriate failed portion of the audit and other applicable portions to determine whether the monitoring system is operating properly and within specifications. Monitoring data obtained during any out-of-control period may not be used for compliance determination or to meet any data capture requirements; however, the data can be used for identifying periods when there has been a failure to meet quality assurance/quality control criteria.

(3) Out-of-control time periods determination shall be as follows:

(a) The beginning of the out-of-control period is:

1. The time corresponding to the completion of the fifth consecutive daily CD check with CD in excess of two times the allowable limit, or

2. The time corresponding to completion of the daily CD check preceding the daily CD check that results in a CD in excess of four times the allowable limit.

(b) The end of the out-of-control period is the time corresponding to the completion of the CD check following corrective action that results in the CD's at both the zero (or low-level) and high-level measurement points being within the corresponding allowable CD limit (i.e., either two times or four times the allowable limit in 40 C.F.R. Part 60, Appendix B, as of July 1, 1991).

(c) If the CEMS failed a PA, the beginning of the out-of-control period is the time corresponding to the completion of the failed audit test. The end of the out-of-control period is the time corresponding to a successful retest of the PA sample.

(4) The owner or operator shall keep the QC procedure described in Paragraph (1) of this rule in a readily accessible location for at least 3 years and shall make the procedure available to the Technical Secretary upon request.

(5) Upon request, the owner or operator shall submit to the Technical Secretary a copy of all information and records documenting out-of-control periods including beginning and end dates and descriptions of corrective actions taken.

(6) Use of an adaptation to any of the requirements specified in this rule shall be approved by the Technical Secretary and EPA case-by-case. An owner or operator shall submit sufficient documentation for the Technical Secretary and EPA to find that the specified requirements are inappropriate and that the proposed adaptation is appropriate.

Notes

Tenn. Comp. R. & Regs. 1200-03-18-.87

Original rule filed March 8, 1993; effective April 22, 1993.

Authority: T.C.A. §§ 4-5-202 and 68-201-105.