NR 463.26(1)(e)(e) For each combustion device subject to the operating limit in s. NR 463.23 (1) (b) 4., you shall at all times monitor the 3-hour average combustion zone temperature using CPMS according to the requirements in sub. (2) (d).
NR 463.26(1)(f)(f) For each wet acid scrubber subject to the operating limits in s. NR 463.23 (1) (b) 5., you shall do both of the following at all times:
NR 463.26(1)(f)1.1. Monitor the 3-hour average scrubbing liquid flow rate using CPMS according to the requirements of sub. (2) (e) 1.
NR 463.26(1)(f)2.2. Monitor the 3-hour average pH of the scrubber blowdown using CPMS according to the requirements in sub. (2) (e) 1., or measure and record the pH of the scrubber blowdown once per production cycle using a pH probe and meter according to the requirements in sub. (2) (e) 2.
NR 463.26(1)(g)(g) For one or more automated conveyor and pallet cooling lines and automated shakeout lines at a new iron and steel foundry subject to the VOHAP emissions limit in s. NR 463.23 (1) (a) 10., you shall at all times monitor the 3-hour average VOHAP concentration using a CEMS according to the requirements of sub. (2) (g).
NR 463.26(2)(2)What are the installation, operation and maintenance requirements for my monitors?
NR 463.26(2)(a)(a) For each capture system subject to an operating limit in s. NR 463.23 (1) (b) 1., you shall install, operate and maintain each CPMS according to the following requirements, as applicable:
NR 463.26(2)(a)1.1. If you use a flow measurement device to monitor an operating limit parameter for a capture system, you shall do all of the following:
NR 463.26(2)(a)1.a.a. Locate the flow sensor and other necessary equipment, such as straightening vanes, in a position that provides a representative flow and that reduces swirling flow or abnormal velocity distributions due to upstream and downstream disturbances.
NR 463.26(2)(a)1.b.b. Use a flow sensor with a minimum measurement sensitivity of 2% of the flow rate.
NR 463.26(2)(a)1.c.c. Conduct a flow sensor calibration check at least semiannually.
NR 463.26(2)(a)1.d.d. At least monthly, inspect all components for integrity, all electrical connections for continuity and all mechanical connections for leakage.
NR 463.26(2)(a)1.e.e. Record the results of each inspection, calibration and validation check required under this subdivision.
NR 463.26(2)(a)2.2. If you use a pressure measurement device to monitor the operating limit parameter for a capture system, you shall do all of the following:
NR 463.26(2)(a)2.a.a. Locate the pressure sensors in, or as close as possible, to a position that provides a representative measurement of the pressure and that minimizes or eliminates pulsating pressure, vibration, and internal and external corrosion.
NR 463.26(2)(a)2.b.b. Use a gauge with a minimum measurement sensitivity of 0.5 inch of water or a transducer with a minimum measurement sensitivity of one percent of the pressure range.
NR 463.26(2)(a)2.c.c. Check the pressure tap for blockage or plugging daily.
NR 463.26(2)(a)2.d.d. Using a manometer, check gauge calibration quarterly and transducer calibration monthly.
NR 463.26(2)(a)2.e.e. Conduct calibration checks any time the sensor exceeds the manufacturer’s specified maximum operating pressure range or install a new pressure sensor.
NR 463.26(2)(a)2.f.f. At least monthly, inspect all components for integrity, all electrical connections for continuity and all mechanical connections for leakage.
NR 463.26(2)(a)2.g.g. Record the results of each inspection, calibration and validation check required under this subdivision.
NR 463.26(2)(b)(b) You shall install, operate and maintain a bag leak detection system according to all of the following requirements:
NR 463.26(2)(b)1.1. The system shall be certified by the manufacturer to be capable of detecting emissions of particulate matter at concentrations of 10 milligrams per actual cubic meter (0.0044 grains per actual cubic foot) or less.
NR 463.26(2)(b)2.2. The bag leak detection system sensor shall provide output of relative particulate matter loadings, and the owner or operator shall continuously record the output from the bag leak detection system using electronic or other means such as a strip chart recorder or a data logger.
NR 463.26(2)(b)3.3. The system shall be equipped with an alarm that will sound when an increase in relative particulate loadings is detected over the alarm set point established in the operation and maintenance plan. The alarm shall be located such that it can be heard by the appropriate plant personnel.
NR 463.26(2)(b)4.4. The initial adjustment of the system shall, at a minimum, consist of establishing the baseline output by adjusting the sensitivity or range and the averaging period of the device and establishing the alarm set points and the alarm delay time, if applicable.
NR 463.26(2)(b)5.5. Following the initial adjustment, the sensitivity or range, averaging period, alarm set point or alarm delay time may not be adjusted without approval from the department. Except, once per quarter, you may adjust the sensitivity of the bag leak detection system to account for seasonal effects, including temperature and humidity, according to the procedures in the operation and maintenance plan required by s. NR 463.23 (3) (b).
NR 463.26(2)(b)6.6. For negative pressure induced air baghouses and positive pressure baghouses that are discharged to the atmosphere through a stack, the bag leak detector sensor shall be installed downstream of the baghouse and upstream of any wet scrubber.
NR 463.26(2)(b)7.7. Where multiple detectors are required, the system’s instrumentation and alarm may be shared among detectors.