A trained operator must inspect the perc dry cleaning system for perceptible liquid and vapor leaks and other fugitive emissions, and record the date of inspection, inspector's initials and the status of each component on a checklist supplied by the department. Completed checklists must be kept for at least five years from the date of inspection.

(b) The following components of the perc dry cleaning system must be inspected weekly by a trained operator for perceptible liquid and vapor leaks and for proper operation, as required by section 232-2.6 of this Subpart (operation and maintenance requirements), during that portion of the machine cycle that the component is utilized:

(c) Carbon adsorber vents from external door fans must be tested weekly using colorimetric detector tubes or a portable gas analyzer and noted on the checklist.

(d) The refrigerant high and low vapor pressures, or the temperatures of the vapor stream on the inlet and outlet side of a refrigerated condenser, must be measured weekly, and recorded on the checklist.

(e) Preparedness and prevention equipment as required in section 232-2.6(d)(4) of this Subpart must be inspected weekly to ensure proper operation and maintenance. A notation must be made on the checklist at the time of inspection.

(f) For dry cleaning machines equipped with an external door fan, trained operators must use a portable velometer or equivalent measurement instrument to measure the inward air velocity through the effective door opening to verify compliance with section 232-2.4(a)(3) of this Subpart. The inward air velocity must be measured weekly and noted on the checklist.

(g) Any liquid leak, vapor leak, or malfunction that has been detected by a trained operator must be noted on the checklist and repaired immediately, if possible. If the leak cannot be repaired at the time of detection, the leaking component must be physically marked or tagged in a manner that is readily observable and repaired within 24 hours of detection, unless repair parts are unavailable.

(h) A measured fugitive perc emission concentration of 50 ppm or greater emanating from any unintended openings in the dry cleaning system shall be considered an excessive vapor leak, treated as a violation, and subject to department enforcement action if detected by an inspector and not physically marked or tagged by a trained operator prior to the inspection; except for short-term maintenance operations involving the opening of dry cleaning system components for inspection or repair.

(i) Owner drum testing. In addition to the required yearly drum testing by compliance inspectors (inspector drum testing), all operational fourth generation perc dry cleaning machines must be tested by the owner or owner's representative at the facilities and frequencies specified in paragraphs (1) and (2) of this subdivision. These tests must be conducted at the immediate completion of the drying cycle and prior to the activation of any fugitive emissions control system. Any fugitive emissions control system, normally activated upon door opening, must be deactivated prior to this test. Testing must be conducted when machines are filled to at least 80 percent of capacity using proper sampling procedures and a colorimetric detector tube sampling pump, or photo ionization detector, in good working order. During this test, the sampling probe must be inserted into the rear of the drum and above the clothes at the immediate completion of the drying cycle. Any sampled concentration above the regulatory limit specified in section 232-2.4(a)(5) of this Subpart will not be treated as a violation if the machine is brought into compliance and then retested within 45 days of detection. This compliance and testing deadline may be extended beyond 45 days if requested and reasonably justified by the owner and approved by the department. Testing results and any corrective action taken must be recorded on the checklist supplied by the department.