NR 464.08(3)(3) Each component of the closed-vent system used to comply with ss. NR 464.03 (3), 464.04 (2) and 464.05 (2) that is operated at positive pressure and located prior to a control device shall be designed for and operated with no detectable leaks as indicated by an instrument reading of less than 500 parts per million by volume above background, as measured by the procedures specified in 40 CFR 63.457(d), incorporated by reference in s. NR 484.03 (6).

NR 464.08(4)(4) Each bypass line in the closed-vent system that could divert vent streams containing HAP to the atmosphere without meeting the emission limitations in ss. NR 464.03 to 464.05 shall comply with either of the following requirements:

NR 464.08(4)(a)(a) On each bypass line, the owner or operator shall install, calibrate, maintain and operate according to manufacturer’s specifications a flow indicator that provides a record of the presence of gas stream flow in the bypass line at least once every 15 minutes. The flow indicator shall be installed in the bypass line in such a way as to indicate flow in the bypass line.

NR 464.08(4)(b)(b) For bypass line valves that are not computer controlled, the owner or operator shall maintain the bypass line valve in the closed position with a car seal or a seal placed on the valve or closure mechanism in such a way that valve or closure mechanism cannot be opened without breaking the seal.

NR 464.09(1)(1) Each owner or operator subject to the standards specified in s. NR 464.03 (3) and (4), 464.04 (2) and (3), 464.05 (2) and (3), 464.06 (3), (4) and (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.

NR 464.09(2)(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.

NR 464.09(3)(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):

NR 464.09(4)(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).

NR 464.09(5)(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).

NR 464.09(6)(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).

NR 464.09(7)(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):

NR 464.09(8)(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).

NR 464.09(9)(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).

NR 464.09(10)(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):

NR 464.09(10)(a)(a) On a daily basis, monitor all the following parameters for each biological treatment unit:

NR 464.09(10)(a)1.1. Composite daily sample of outlet soluble BOD5 concentration to monitor for maximum daily and maximum monthly average.

NR 464.09(10)(b)(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.: