§ 63.5150 If I use a control device to comply with the emission standards, what monitoring must I do?
Table 1 to § 63.5150—Control Device Monitoring Requirements Index
| If you operate a coil coating line and have the following: | Then you must: |
|---|---|
| 1. Control device | Monitor control device operating parameters (§ 63.5150(a)(3)). |
| 2. Capture system | Monitor capture system operating parameters (§ 63.5150(a)(4)). |
| 3. Intermittently controllable work station | Monitor parameters related to possible exhaust flow through any bypass to a control device (§ 63.5150(a)(1)). |
| 4. Continuous emission monitors | Operate continuous emission monitors and perform a quarterly audit (§ 63.5150(a)(2)). |
(a) To demonstrate continuing compliance with the standards, you must monitor and inspect each capture system and each control device required to comply with § 63.5120 following the date on which the initial performance test of the capture system and control device is completed. You must install and operate the monitoring equipment as specified in paragraphs (a)(1) through (4) of this section. On and after August 24, 2020, you must also maintain the monitoring equipment at all times in accordance with § 63.5140(b) and keep the necessary parts readily available for routine repairs of the monitoring equipment.
(1) Bypass monitoring. If you operate coil coating lines with intermittently-controllable work stations, you must follow at least one of the procedures in paragraphs (a)(1)(i) through (iv) of this section for each curing oven associated with these work stations to monitor for potential bypass of the control device:
(i) Flow control position indicator. Install, calibrate, maintain, and operate according to the manufacturer's specifications a flow control position indicator that provides a record indicating whether the exhaust stream from the curing oven is directed to the control device or is diverted from the control device. The time and flow control position must be recorded at least once per hour, as well as every time the flow direction is changed. The flow control position indicator must be installed at the entrance to any bypass line that could divert the exhaust stream away from the control device to the atmosphere.