The Maine Department of Environmental Protection (DEP) requires certain stationary sources that have licenses to emit to submit an annual air emissions inventory report. The due date for these emissions reports is May 15, 2017.
The emissions inventory report must be submitted if a stationary source with license to emit under Code of Maine Rules (CMR) 06-096.115 or CMR 06-096.140 emits any of the following pollutants in excess of the thresholds:
- Carbon monoxide (CO): 75 tons per year (tpy)
- Sulfur dioxide (SO2): 40 tpy
- Volatile organic compounds (VOCs): 25 tpy
- Nitrogen oxides (NOx): 25 tpy
- PM-10: 15 tpy
- PM-2.5: 15 tpy
- Lead: 0.1 tpy
- Ammonia: 50 tpy
In addition, emissions inventory reports must include greenhouse gas emissions. Hazardous air pollutant (HAP) emissions only have to be reported every 3 years and are not required for the 2016 emissions inventory due on May 15, 2017. HAP emissions will have to be included on next year’s emissions inventory report.
Facilities should submit emissions inventory reports using the Maine Air Inventory Reporting System (MAIRIS), a Web-based emissions inventory reporting system.
For more information, contact the DEP at 207-287-7688.