Section NR 464.09 - Monitoring requirements(1) Each owner or operator subject to the standards specified in s. NR 464.03(3) and (4), and 464.04(2) (3), and 464.05(2) (3), and 464.06(3), (4) (5), 464.07(2) or 464.08(4), shall install, calibrate, certify, operate and maintain according to the manufacturer's specifications, a continuous monitoring system (CMS), as defined in s. NR 460.02(12), as specified in subs. (2) to (13), except as allowed in sub. (13). The CMS shall include a continuous recorder.(2) A CMS shall be operated to measure the temperature in the firebox or in the ductwork immediately downstream of the firebox and before any substantial heat exchange occurs for each thermal oxidizer used to comply with the requirements of s. NR 464.03(4) (a) to (c). Owners and operators complying with the HAP concentration requirements in s. NR 464.03(4) (b) may install a CMS to monitor the thermal oxidizer outlet total HAP or methanol concentration, as an alternative to monitoring thermal oxidizer operating temperature.(3) A CMS shall be operated to measure all the following parameters for each gas scrubber used to comply with the bleaching system requirements of s. NR 464.05(3) or the sulfite pulping system requirements of s. NR 464.04(3): (a) The pH or the oxidation/reduction potential of the gas scrubber effluent.(b) The gas scrubber vent gas inlet flow rate.(c) The gas scrubber liquid influent flow rate.(4) As an option to the requirements specified in sub. (3), a CMS shall be operated to measure the chlorine outlet concentration of each gas scrubber used to comply with the bleaching system outlet concentration requirement specified in s. NR 464.05(3) (b).(5) The owner or operator of a bleaching system complying with 40 CFR 430.24 shall monitor the chlorine and hypochlorite application rates, in kg of bleaching agent per megagram of ODP, of the bleaching system during the extended compliance period specified in s. NR 464.01(1) (e).(6) A CMS shall be operated to measure the gas scrubber parameters specified in sub. (3) (a) to (c) or those site specific parameters determined according to the procedures specified in sub. (14) to comply with the sulfite pulping system requirements specified in s. NR 464.04(3).(7) A CMS shall be operated to measure all the following parameters for each steam stripper used to comply with the treatment requirements in s. NR 464.06(5) (c), (d) or (e): (a) The process wastewater feed rate.(c) The process wastewater column feed temperature.(8) As an option to the requirements specified in sub. (7), a CMS shall be operated to measure the methanol outlet concentration to comply with the steam stripper outlet concentration requirement specified in s. NR 464.06(5) (d) or (e).(9) A CMS shall be operated to measure the appropriate parameters determined according to the procedures specified in sub. (14) to comply with the condensate applicability requirements specified in s. NR 464.06(3).(10) Each owner or operator using an open biological treatment system to comply with s. NR 464.06(5) (b) shall perform the monitoring procedures specified in either pars. (a) and (b) or par. (c) and shall conduct a performance test each quarter using the procedures specified in par. (d): (a) On a daily basis, monitor all the following parameters for each biological treatment unit: 1. Composite daily sample of outlet soluble BOD5 concentration to monitor for maximum daily and maximum monthly average.2. Mixed liquor volatile suspended solids.3. Horsepower of each aerator unit.(b) If the Inlet and Outlet Concentration Measurements procedure (Procedure 3) in Appendix C of 40 CFR part 63, incorporated by reference in s. NR 484.04(25g), is used to determine the fraction of HAP compounds degraded in the biological treatment system as specified in 40 CFR 63.457(l), carry out the sampling and archival requirements specified in subds. 1. and 2.: 1. Obtain daily inlet and outlet liquid grab samples from each biological treatment unit to have HAP data available to perform quarterly performance tests specified in par. (d) and the compliance tests specified in sub. (16).2. Store the samples as specified in 40 CFR 63.457(n) until after the results of the soluble BOD5 test required in par. (a) 1. are obtained. The storage requirement is needed since the soluble BOD5 test requires 5 days or more to obtain results. If the results of the soluble BOD5 test are outside of the range established during the initial performance test, then the archive sample shall be used to perform the mass removal or percent reduction determinations.(c) As an alternative to the monitoring requirements of pars. (a) and (b), conduct daily monitoring of the site-specific parameters established according to the procedures specified in sub. (14). (d) Conduct a performance test as specified in 40 CFR part 63.457 (l) within 45 days after the beginning of each quarter and meet the applicable emission limit in s. NR 464.06(5) (b). 1. The performance test conducted in the first quarter, annually, shall be performed for total HAP as specified in 40 CFR 63.457(g) and meet the percent reduction or mass removal emission limit specified in s. NR 464.06(5) (b).2. The remaining quarterly performance tests shall be performed as specified in subd. 1. except owners or operators may use the applicable methanol procedure in 40 CFR 63.457(l)(1) or (2) and the value of r determined during the first quarter test instead of measuring the additional HAP to determine a new value of r. (11) Each enclosure and closed-vent system used to comply with s. NR 464.08(1) shall comply with the requirements specified in pars. (a) to (f): (a) For each enclosure opening, a visual inspection of the closure mechanism specified in s. NR 464.08(2) shall be performed at least once every 30 days to ensure the opening is maintained in the closed position and sealed.(b) Each closed-vent system required by s. NR 464.08(1) shall be visually inspected every 30 days and at other times as requested by the department. The visual inspection shall include inspection of ductwork, piping, enclosures and connections to covers for visible evidence of defects.(c) For positive pressure closed-vent systems or portions of closed-vent systems, demonstrate no detectable leaks as specified in s. NR 464.08(3), measured initially and annually by the procedures in 40 CFR 63.457(d), incorporated by reference in s. NR 484.03(6).(d) Demonstrate initially and annually that each enclosure opening is maintained at negative pressure as specified in 40 CFR 63.457(e), incorporated by reference in s. NR 484.03(6).(e) The valve or closure mechanism specified in s. NR 464.08(4) (b) shall be inspected at least once every 30 days to ensure that the valve is maintained in the closed position and the emission point gas stream is not diverted through the bypass line.(f) If an inspection required by pars. (a) to (e) identifies visible defects in ductwork, piping, enclosures or connections to covers required by s. NR 464.08, or if an instrument reading of 500 parts per million by volume or greater above background is measured, or if enclosure openings are not maintained at negative pressure, then the following corrective actions shall be taken as soon as practicable: 1. A first effort to repair or correct the closed-vent system shall be made as soon as practicable but no later than 5 calendar days after the problem is identified.2. The repair or corrective action shall be completed no later than 15 calendar days after the problem is identified. Delay of repair or corrective action is allowed if the repair or corrective action is technically infeasible without a process unit shutdown or if the owner or operator determines that the emissions resulting from immediate repair would be greater than the emission likely to result from delay. Repair of the equipment shall be completed by the end of the next process shutdown.(12) Each pulping process condensate closed collection system used to comply with s. NR 464.06(4) shall comply with the requirements of pars. (a) to (c): (a) Each pulping process condensate closed collection system shall be visually inspected every 30 days and shall comply with the inspection and monitoring requirements specified in 40 CFR 63.964 of subpart RR, except: 1. Owners and operators shall comply with the recordkeeping requirements of s. NR 464.10 instead of the requirements of 40 CFR 63.964(a)(1)(vi) and (b)(3).2. Owners and operators shall comply with inspection and monitoring requirements specified in subs. (1) and (11) instead of 40 CFR 63.964(a)(2) of subpart RR. (b) Each condensate tank used in the closed collection system shall be operated with no detectable leaks as specified in s. NR 464.06(4) (b) 1., measured initially and annually by the procedures in 40 CFR 63.457(d), incorporated by reference in s. NR 484.03(6).(c) If an inspection required by this section identifies visible defects in the closed collection system, or if an instrument reading of 500 ppm or greater above background is measured, then corrective actions specified in 40 CFR 63.964(b) of subpart RR shall be taken.(13) Each owner or operator using a control device, technique or an alternative parameter other than those specified in subs. (2) to (12) shall install a CMS and establish appropriate operating parameters to be monitored that demonstrate, to the administrator's satisfaction, continuous compliance with the applicable control requirements. Note: Under 40 CFR 458(b)(2), implementation of sub. (13) requires approval by EPA.
(14) To establish or reestablish the value for each operating parameter required to be monitored under subs. (2) to (10), (12) and (13) or to establish appropriate parameters for subs. (6), (9), (10) (c) and (13), each owner or operator shall use the following procedures: (a) During the initial performance test required in 40 CFR 63.457(a), incorporated by reference in s. NR 484.03(6), or any subsequent performance test, continuously record the operating parameter.(b) Determinations shall be based on the control performance and parameter data monitored during the performance test, supplemented if necessary by engineering assessments and the manufacturer's recommendations.(c) The owner or operator shall provide for the department's approval the rationale for selecting the monitoring parameters necessary to comply with subs. (6) and (9) and shall provide for the administrator's approval the rationale for selecting the monitoring parameters necessary to comply with sub. (13).(d) Provide for the department's approval the rationale for the selected operating parameter value, and monitoring frequency, and averaging time. Include all data and calculations used to develop the value and a description of why the value, monitoring frequency and averaging time demonstrate continuous compliance with the applicable emission standard.(15) Each owner or operator of a control device subject to the monitoring provisions of this section shall operate the control device in a manner consistent with the minimum or maximum, as appropriate, operating parameter value or procedure required to be monitored under subs. (1) to (14) and established under this chapter. Except as provided in sub. (16), s. NR 464.03(5) or 464.06(7), operation of the control device below minimum operating parameter values or above maximum operating parameter values established under this chapter or failure to perform procedures required by this chapter shall constitute a violation of the applicable emission standard of this chapter and be reported as a period of excess emissions. (16) The procedures of this paragraph apply to each owner or operator of an open biological treatment system complying with sub. (10) whenever a monitoring parameter excursion occurs, and the owner or operator chooses to conduct a performance test to demonstrate compliance with the applicable emission limit. A monitoring parameter excursion occurs whenever the monitoring parameters specified in sub. (10) (a) 1. to 3. or any of the monitoring parameters specified in sub. (10) (c) are below minimum operating parameter values or above maximum operating parameter values established in sub. (14). (a) As soon as practical after the beginning of the monitoring parameter excursion, the following requirements shall be met: 1. Before the steps in subd. 2. or 3. are performed, all sampling and measurements necessary to meet the requirements in par. (b) shall be conducted.2. Steps shall be taken to repair or adjust the operation of the process to end the parameter excursion period.3. Steps shall be taken to minimize total HAP emissions to the atmosphere during the parameter excursion period.(b) A parameter excursion is not a violation of the applicable emission standard if the results of the performance test conducted using the procedures in this paragraph demonstrate compliance with the applicable emission limit in s. NR 464.06(5) (b). 1. Conduct a performance test as specified in 40 CFR 63.457 using the monitoring data specified in sub. (10) (a) to (c) that coincides with the time of the parameter excursion. No maintenance or changes shall be made to the open biological treatment system after the beginning of a parameter excursion that would influence the results of the performance test.2. If the results of the performance test specified in subd. 1. demonstrate compliance with the applicable emission limit in s. NR 464.06(5) (b), then the parameter excursion is not a violation of the applicable emission limit. 3. If the results of the performance test specified in subd. 1. do not demonstrate compliance with the applicable emission limit in s. NR 464.06(5) (b) because the total HAP mass entering the open biological treatment system is below the level needed to demonstrate compliance with the applicable emission limit in s. NR 464.06(5) (b), then the owner or operator shall perform the following comparisons: a. If the value of fbio (MeOH) determined during the performance test specified in subd. 1. is within the range of values established during the initial and subsequent performance tests approved by the department, then the parameter excursion is not a violation of the applicable standard. b. If the value of fbio (MeOH) determined during the performance test specified in subd. 1. is not within the range of values established during the initial and subsequent performance tests approved by the department, then the parameter excursion is a violation of the applicable standard. 4. The results of the performance test specified in subd. 1. shall be recorded as specified in s. NR 464.10(6). (c) If an owner or operator determines that performing the required procedures under par. (b) for a nonthoroughly mixed open biological system would expose a worker to dangerous, hazardous or otherwise unsafe conditions, all of the following procedures shall be performed: 1. Calculate the mass removal or percent reduction value using the procedures specified in 40 CFR 63.457(l) except the value for fbio (MeOH) shall be determined using the procedures in Appendix E of 40 CFR part 63, incorporated by reference in s. NR 484.04(25r).2. Repeat the procedures in subd. 1. for every day until the unsafe conditions have passed. 3. A parameter excursion is a violation of the standard if the percent reduction or mass removal determined in subd. 1. is less than the percent reduction or mass removal standards specified in s. NR 464.06(5) (b), as appropriate, unless the value of fbio (MeOH) determined using the procedures in 40 CFR part 63 Appendix E, as specified in subd. 1., is within the range of fbio (MeOH) values established during the initial and subsequent performance tests previously approved by the department. 4. The determination that there is a condition that exposes a worker to dangerous, hazardous or otherwise unsafe conditions shall be documented according to requirements in s. NR 464.10(5) and reporting in s. NR 464.11(6).5. The requirements of pars. (a) and (b) shall be performed and met as soon as practical but no later than 24 hours after the conditions have passed that exposed a worker to dangerous, hazardous or otherwise unsafe conditions. Wis. Admin. Code Department of Natural Resources NR 464.09
CR 00-175: cr. Register March 2002 No. 555, eff. 4-1-02.