06- 096 C.M.R. ch. 137, § 5

Current through 2024-51, December 18, 2024

Section 096-137-5 - Emissions Estimation Approaches

Air emissions reported to the Department pursuant to this Chapter shall be quantified/estimated in the manner which most accurately reflects actual emissions in the order, as follows below. The Department retains the right to review reports, question the emission procedure used, and require use of an estimation procedure that the Department determines is more accurate.

A.For sources with specification CEMs/PEMs monitoring systems that are required by statute, regulation, or license condition, emission data generated by these systems shall serve as the basis for emissions reported pursuant to this Chapter;

B.For sources not subject to subsection 5(A) and for which reference method emission testing that has been deemed by the Department to be representative of current and normal operating conditions, emission data from such testing shall serve as the basis for estimating emissions reported to the Department pursuant to this Chapter;

C.For sources not subject to subsection 5(A) or (B), emissions reported pursuant to this Chapter shall be estimated and reported on the basis of a facility-specific emission factor approved by the Department;

D.For sources not subject to subsection 5(A),(B) or (C), emissions reported pursuant to this Chapter shall be estimated and reported on the basis of EPA-published emission factors, where available;

E.For sources not subject to subsection 5(A),(B),(C) or (D), emissions reported pursuant to this Chapter shall be estimated and reported based on emissions factors from other industry and trade groups based on sound science, where available;

F.For sources not subject to subsection 5(A),(B),(C),(D) or (E), emissions reported pursuant to this Chapter shall be estimated and reported based on default emission factors published by the Department, where available; or

G.For sources not subject to subsection 5(A),(B),(C),(D),(E) or (F), emissions reported pursuant to this Chapter shall be estimated and reported based on best engineering judgement.

06- 096 C.M.R. ch. 137, § 5