Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. HHHHHHH, Tbl. 5 Table 5 to Subpart HHHHHHH of Part 63—Operating Parameters, Operating Limits and Data Monitoring, Recording and Compliance Frequencies for Process Vents

Data measurement

Data recording

Data averaging period for compliance

Process Vents

Any Control device

Flow to/from the control device

N/A

Continuous

N/A

Date and time of flow start and stop.

Thermal Oxidizers

Temperature (in fire box or downstream ductwork prior to heat exchange)

Minimum temperature

Continuous

Every 15 minutes

3-hour block average.

Temperature differential across catalyst bed

Minimum temperature differential

Continuous

Every 15 minutes

3-hour block average.

Inlet temperature to catalyst bed and catalyst condition

Minimum inlet temperature and catalyst condition as specified in 63.11940 (b)(3)

Continuous for temperature, annual for catalyst condition

Every 15 minutes for temperature, annual for catalyst condition

3-hour block average for temperature, annual for catalyst condition.

Absorbers and Acid Gas Scrubbers

Influent liquid flow

Minimum inlet liquid flow

Continuous

Every 15 minutes

3-hour block average.

Influent liquid flow and gas stream flow

Minimum influent liquid flow to gas stream flow ratio

Continuous

Every 15 minutes

3-hour block average.

Pressure drop

Minimum pressure drop

Continuous

Every 15 minutes

3-hour block average.

Exhaust gas temperature

Maximum exhaust gas temperature

Continuous

Every 15 minutes

3-hour block average.

Change in specific gravity of scrubber liquid

Minimum change in specific gravity

Continuous

Every 15 minutes

3-hour block average.

pH of effluent liquid

Minimum pH

Continuous

Every 15 minutes

3-hour block average.

Causticity of effluent liquid

Minimum causticity

Continuous

Every 15 minutes

3-hour block average.

Conductivity of effluent liquid

Minimum conductivity

Continuous

Every 15 minutes

3-hour block average.

Regenerative Adsorber

Regeneration stream flow.

Minimum total flow per regeneration cycle

Continuous

N/A

Total flow for each regeneration cycle.

Adsorber bed temperature.

Maximum temperature

Continuously after regeneration and within 15 minutes of completing any temperature regulation

Every 15 minutes after regeneration and within 15 minutes of completing any temperature regulation

3-hour block average.

Adsorber bed temperature.

Minimum temperature

Continuously during regeneration except during any temperature regulating portion of the regeneration cycle

N/A

Average of regeneration cycle.

Vacuum and duratio of regeneration

Minimum vacuum and period of time for regeneration

Continuous

N/A

Average vacuum and duration of regeneration.

Regeneration frequency

Minimum regeneration frequency and duration

Continuous

N/A

Date and time of regeneration start and stop.

Adsorber operation valve sequencing and cycle time

Correct valve sequencing and minimum cycle time

Daily

Daily

N/A.

Non-Regenerative Adsorber

Average adsorber bed life.

N/A

Daily until breakthrough for 3 adsorber bed change-outs

N/A

N/A.

Outlet VOC concentration of the first adsorber bed in series

Limits in Table 1 or 2 of this subpart

Daily, except monthly (if more than 2 months bed life remaining) or weekly (if more than 2 weeks bed life remaining)

N/A

Daily, weekly, or monthly.

Condenser

Temperature

Maximum outlet temperature

Continuous

Every 15 minutes

3-hour block average.