§ 63.471 Facility-wide standards.
(a) Each owner or operator of an affected facility shall comply with the requirements specified in this section. For purposes of this section, affected facility means all solvent cleaning machines, except solvent cleaning machines used in the manufacture and maintenance of aerospace products, solvent cleaning machines used in the manufacture of narrow tubing, and continuous web cleaning machines, located at a major source that are subject to the facility-wide limits in paragraph (b)(2) of this section, and for area sources, affected facility means all solvent cleaning machines, except cold batch cleaning machines, located at an area source that are subject to the facility-wide limits in paragraph (b)(2) of this section.
(b)
(1) Each owner or operator of an affected facility must maintain a log of solvent additions and deletions for each solvent cleaning machine.
(2) Each owner or operator of an affected facility must ensure that the total emissions of perchloroethylene (PCE), trichloroethylene (TCE) and methylene chloride (MC) used at the affected facility are equal to or less than the applicable facility-wide 12-month rolling total emission limit presented in Table 1 of this section as determined using the procedures in paragraph (c) of this section.
Table 1—Facility-wide Emission Limits for Facilities With Solvent Cleaning Machines
| Solvents emitted | Facility-wide annual emission limits in kg—for general population degreasing machines | Facility-wide annual emission limit in kg for military depot maintenance facilities |
|---|---|---|
| PCE only a | 4,800 | 8,000 |
| TCE only | 14,100 | 23,500 |
| MC only | 60,000 | 100,000 |
| Multiple solvents—Calculate the MC-weighted emissions using equation 1 | 60,000 | 100,000 |
a PCE emission limit calculated using CalEPA URE.
Note:
In the equation, the facility emissions of PCE and TCE are weighted according to their carcinogenic potency relative to that of MC. The value of A is 12.5. The value for B is 4.25.