Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. MMM, Tbl. 3 Table 3 to Subpart MMM of Part 63—Monitoring Requirements for Control Devices a]

All control devices

1. Flow indicator installed at all bypass lines to the atmosphere and equipped with continuous recorder or

1. Presence of flow diverted from the control device to the atmosphere or

Hourly records of whether the flow indicator was operating and whether a diversion was detected at any time during each hour.

2. Valves sealed closed with car-seal or lock-and-key configuration

2. Monthly inspections of sealed valves

Monthly.

Scrubber

Liquid flow rate or pressure drop mounting device. Also a pH monitor if the scrubber is used to control acid emissions.

1. Liquid flow rate into or out of the scrubber or the pressure drop across the scrubber.

1. Every 15 minutes.

2. pH of effluent scrubber liquid

2. Once a day.

Thermal incinerator

Temperature monitoring device installed in firebox or in ductwork immediately downstream of firebox^b

Firebox temperature

Every 15 minutes.

Catalytic incinerator

Temperature monitoring device installed in gas stream immediately before and after catalyst bed

Temperature difference across catalyst bed

Every 15 minutes.

Flare

Heat sensing device installed at the pilot light

Presence of a flame at the pilot light

Every 15 minutes.

Boiler or process heater <44 megawatts and vent stream is not mixed with the primary fuel

Temperature monitoring device installed in firebox^b

Combustion temperature

Every 15 minutes.

Condenser

Temperature monitoring device installed at condenser exit

Condenser exit (product side) temperature

Every 15 minutes.

Carbon adsorber (nonregenerative)

None

Operating time since last replacement

N/A.

Carbon adsorber (regenerative)

Stream flow monitoring device, and

1. Total regeneration stream mass or volumetric flow during carbon bed regeneration cycle(s)

1. For each regeneration cycle, record the total regeneration stream mass or volumetric flow.

Carbon bed temperature monitoring device

2. Temperature of carbon bed after regeneration

2. For each regeneration cycle, record the maximum carbon bed-temperature.

3. Temperature of carbon bed within 15 minutes of completing any cooling cycle(s)

3. Within 15 minutes of completing any cooling cycle, record the carbon bed temperature.

4. Operating time since end of last regeneration

4. Operating time to be based on worst-case conditions.

5. Check for bed poisoning

5. Yearly.