Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 130 - SOLVENT CLEANERS › Section 096-130-8 - Batch Vapor or In-line Solvent Cleaning Machine Complying with 7 Alternative Compliance Demonstration

Current through 2024-29, July 17, 2024
The owner or operator of a batch vapor or in-line solvent
				  cleaning machine complying with Section
				  7 shall maintain records and determine
				  compliance with the applicable provisions in accordance with the
				  following.
A. On the first operating
				day of every month ensure that the solvent cleaning machine system contains
				only clean liquid solvent. This includes, but is not limited to, fresh unused
				solvent, recycled solvent and used solvent that have been cleaned of soils. A
				fill line must be indicated during the first month the measurements are made.
				The solvent level within the machine must be returned to the same fill-line
				each month, immediately prior to calculating monthly emissions as specified in
				Section 8. The solvent cleaning machine does not have to be emptied and filled
				with fresh unused solvent prior to the calculations.
B. Using the records of all solvent additions
				and deletions for the previous monthly reporting period, determine solvent
				emissions (E) using one of the following equations:
For cleaning machines
with
a
				  solvent/air interface:
E = SA-LSR-SSR/AREA
where:
E = the total VOC solvent emissions from the solvent cleaning
				  machine during the most recent monthly reporting period (kilograms of solvent
				  per square meter of solvent/air interface area per month);
SA = the total amount of VOC liquid solvent added to the
				  solvent cleaning machine during the most recent monthly reporting period
				  (kilograms of solvent per month);
LSR = the total amount of VOC liquid solvent removed from the
				  solvent cleaning machine during the most recent monthly reporting period
				  (kilograms of solvent per month);
SSR = the total amount of VOC solvent removed from the
				  solvent cleaning machine in solid waste during the most recent monthly
				  reporting period (kilograms of solvent per month) determined from tests
				  conducted using 40 CFR Part 60 Appendix A Method 25D or by engineering
				  calculations included in the compliance report; and
AREA = the solvent/air interface area of the solvent cleaning
				  machine (square meters).
For cleaning machines
without
a
				  solvent/air interface:
E = SA - LSR - SSR
where:
E = the total VOC solvent emissions from the solvent cleaning
				  machine during the most recent monthly reporting period 1, (kilograms of
				  solvent per month);
SA = the total amount of VOC liquid solvent added to the
				  solvent cleaning machine during the most recent monthly reporting period
				  (kilograms of solvent per month);
LSR = the total amount of VOC liquid solvent removed from the
				  solvent cleaning machine during the most recent monthly reporting period
				  (kilograms of solvent per month); and
SSR = the total amount of VOC solvent removed from the
				  solvent cleaning machine in solid waste during the most recent monthly
				  reporting period (kilograms of solvent per month) determined from tests
				  conducted using EPA reference method 25d or by engineering calculations
				  included in the compliance report.
C. Determine the monthly rolling average, EA,
				for the 3-month period ending with the most recent reporting period using one
				of the following equations:
For cleaning machines
with
a
				  solvent/air interface:
EA = (E1 + E2 +
				  E3) / 3 where:
EA = the average VOC solvent emissions over the preceding 3
				  monthly reporting periods, (kilograms of solvent per square meter of
				  solvent/air interface area per month).
E = VOC solvent emissions for each month
				  (E1, E2,
				  E3) for the most recent 3 monthly reporting periods
				  (kilograms of solvent per square meter of solvent/air interface area).
E1 = the most recent monthly reporting
				  period.
E2 = the monthly reporting period
				  immediately prior to E1.
E3 = the monthly reporting period
				  immediately prior to E2.
For cleaning machines
without
a
				  solvent/air interface
EA = (E1 + E2 +
				  E3) / 3
where:
EA = the average VOC solvent emissions over the preceding 3
				  monthly reporting periods (kilograms of solvent per month).
E = VOC solvent emissions for each month
				  (E1, E2,
				  E3) for the most recent 3 monthly reporting periods
				  (kilograms of solvent per month).
E1 = the most recent monthly reporting
				  period.
E2 = the monthly reporting period
				  immediately prior to E1.
E3 = the monthly reporting period
				  immediately prior to E2.