Current through 2024-51, December 18, 2024
Section 096-138-4 - Phase 1 Mid-Size Boilers StandardsAny person owning, leasing, operating or controlling a boiler having an energy input capacity of 50 million BTU per hour or greater and less than 1500 million British Thermal Units (BTU) or greater shall comply with the following NOx emission standards except as provided in Sections (3)(I)-(3)(O):
1. The NOx emission rate for mid-size boilers licensed to fire oil shall not exceed 0.40 pounds per million BTU based on a one hour average, unless the facility installs Low-NOx burners or equivalent strategies.2. The NOx emission rate for mid-size boilers licensed to fire biomass shall not exceed 0.30 pounds per million BTU based on a one hour average.3. The NOx emission rate for mid-size boilers licensed to fire biomass and oil shall not exceed 0.40 pounds per million BTU based on a one hour.4. The NOx emission rate for mid-size boilers licensed to fire biomass and coal shall not exceed 0.45 pounds per million BTU based on a one hour average.5. The NOx emission rate for mid-size boilers licensed to fire biomass and fuels other than oil and coal shall not exceed 0.30 pounds per million BTU based on a one hour average.6. Mid-size boilers with a heat input of 250 million BTU per hour or greater shall demonstrate compliance through the use of a continuous emissions monitoring system that satisfies the requirements of Department Regulation Chapter 117 by May 31, 1996.7. Mid-size boilers with a heat input of 200 million BTU per hour and less than 250 million BTU per hour shall demonstrate compliance through the use of a continuous emissions monitoring system that satisfies the requirements of Department Regulation Chapter 117 by May 31, 1997.8. For any mid-size boiler which employs the use of a continuous emissions monitoring system that satisfies the requirements of Department Regulation Chapter 117 compliance will be on a 24-hour daily block arithmetic average basis.06- 096 C.M.R. ch. 138, § 4