Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. MMM, Tbl. 2 Table 2 to Subpart MMM of Part 63—Standards for New and Existing PAI Sources

Process vents

Existing:

Processes having uncontrolled organic HAP emissions ≥0.15 Mg/yr

90% for organic HAP per process or to outlet concentration of ≤20 ppmv TOC.

Processes having uncontrolled HCl and chlorine emissions ≥6.8 Mg/yr

94% for HCl and chlorine per process or to outlet HCl and chlorine concentration of ≤20 ppmv.

Individual process vents meeting flow and mass emissions criteria that have gaseous organic HAP emissions controlled to less than 90% on or after November 10, 1997

98% gaseous organic HAP control per vent or ≤20 ppmv TOC outlet limit.

New:

Processes having uncontrolled organic HAP emissions ≥0.15 Mg/yr

98% for organic HAP per process or ≤20 ppmv TOC.

Processes having uncontrolled HCl and chlorine emissions ≥6.8 Mg/yr and <191 Mg/yr

94% for HCl and chlorine per process or to outlet concentration of ≤20 ppmv HCl and chlorine.

Processes having uncontrolled HCl and chlorine emissions ≥191 Mg/yr

99% for HCl and chlorine per process or to outlet concentration of ≤20 ppmv HCl and chlorine.

Storage vessels

Existing: ≥75 m³ capacity and vapor pressure ≥3.45 kPa

Install a floating roof, reduce HAP by 95% per vessel, or to outlet concentration of ≤20 ppmv TOC.

New: ≥38 m³ capacity and vapor pressure ≥16.5 kPa

Same as for existing sources.

≥75 m³ capacity and vapor pressure ≥3.45 kPa

Same as for existing sources.

Wastewater^a

Existing: Process wastewater with ≥10,000 ppmw Table 9 compounds at any flowrate or ≥1,000 ppmw Table 9 compounds at ≥10 L/min, and maintenance wastewater with HAP load ≥5.3 Mg per discharge event

Reduce concentration of total Table 9 compounds to <50 ppmw (or other options).

New:

Same criteria as for existing sources

Reduce concentration of total Table 9 compounds to <50 ppmw (or other options).

Total HAP load in wastewater POD streams ≥2,100 Mg/yr.

99% reduction of Table 9 compounds from all streams.

Equipment leaks

Subpart H

Subpart H with minor changes, including monitoring frequencies consistent with the proposed CAR.

Product dryers and bag dumps

Dryers used to dry PAI that is also a HAP, and bag dumps used to introduce feedstock that is a solid and a HAP

Particulate matter concentration not to exceed 0.01 gr/dscf.

Heat exchange systems

Each heat exchange system used to cool process equipment in PAI manufacturing operations

Monitoring and leak repair program as in HON.