W. Va. Code R. § 45-21-48

Current through Register Vol. XLI, No. 50, December 13, 2024

Section 45-21-48 - Quality Control Procedures for Continuous Emission Monitoring Systems (CEMS)

48.1. CEMS quality control (QC) program. -- 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:

48.1.1. Initial and routine periodic calibration of the CEMS.

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

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

48.1.4. Data recording, calculations, and reporting.

48.1.5. Accuracy audit procedures including sampling and analysis methods.

48.1.6. Program of corrective action for malfunctioning CEMS.

48.2. Determining out-of-control condition for the CEMS.

48.2.1. If either the zero (or low-level) or high-level CD exceeds twice the applicable drift specification in 40 CFR Part 60, Appendix B, for five consecutive daily periods, the CEMS is out-of-control.

48.2.2. If either the zero (or low-level) or high-level CD exceeds four times the applicable drift specification in 40 CFR Part 60, Appendix B, during any CD check, the CEMS is out-of-control.

48.2.3. If the CEMS fails a performance audit (PA), the CEMS is out-of-control.

48.3. Determining the out-of-control time period for the CEMS.

48.3.1. The beginning of the out-of-control period is:

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

48.3.1.b. 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.

48.3.2. 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 CFR Part 60, Appendix B).

48.3.3. 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.

48.4. Recordkeeping. -- The owner or operator shall keep the QC procedure described in subsection 48.1. in a readily accessible location for at least 3 years and shall make the procedure available to the Secretary upon verbal or written request.

48.5. Reporting. -- The owner or operator shall submit all information concerning out-of-control periods including beginning and end dates and descriptions of corrective actions taken in the excess emissions report defined in 40 CFR 60.7(c).

W. Va. Code R. § 45-21-48