40 CFR Table 4 to Subpart OOO of Part 63
Operating Parameter Levels
June 9, 2020
Open Table
| Device | Parameters to be monitored | Established operating parameter(s) |
|---|---|---|
| Scrubber | pH of scrubber effluent; and scrubber liquid and gas flow rates | Minimum pH; and minimum liquid/gas ratio |
| Absorber | Exit temperature of the absorbing liquid; and exit specific gravity of the absorbing liquid | Maximum temperature; and maximum specific gravity |
| Condenser | Exit temperature | Maximum temperature |
| Carbon absorber | Total regeneration steam or nitrogen flow, or pressure (gauge or absolute)a during carbon bed regeneration cycle; and temperature of the carbon bed after regeneration (and within 15 minutes of completing any cooling cycle(s)) | Maximum flow or pressure; and maximum temperature |
| Thermal incinerator | Firebox temperature | Minimum temperature |
| Catalytic incinerator | Temperature upstream and downstream of the catalyst bed | Minimum upstream temperature; and minimum temperature difference across the catalyst bed |
| Boiler or process heater | Firebox temperature | Minimum temperature |
| Other devices (or as an alternate to the requirements previously presented in this table)b | Organic HAP concentration level or reading at outlet of device | Maximum organic HAP concentration or reading |
a25 to 50 mm (absolute) is a common pressure level obtained by pressure swing absorbers.
bConcentration is measured instead of an operating parameter.
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