N.J. Admin. Code § 7:27-21.6

Current through Register Vol. 56, No. 21, November 4, 2024

Section 7:27-21.6 - Methods to be used for quantifying actual emissions

(a) The method used for quantifying actual emissions for use in preparing emission information required at 7:27-21.5(e) shall be determined as follows:

1. If a permit or certificate issued by the Department pursuant to N.J.A.C. 7:27-8 or 22 specifies a method for quantifying actual emissions of a given air contaminant, then that method shall be used; and

2. For all other cases, the method that shall be used is the best available quantification method selected from Table 3 below. The best available quantification method is a method listed in Table 3 that is reasonably available, as defined at 7:27-21.1, and provides the most accurate estimation of the actual emissions from the source operation. An owner or operator submitting an Emission Statement shall presume that the highest-ranked method in Table 3, which is also reasonably available, is the best available quantification method and use that method, unless a different method is selected pursuant to (b) below.

TABLE 3
RANKING OF METHODS
FOR QUANTIFYING ACTUAL EMISSIONS
Rank	Method
1	Continuous Emissions Monitoring
2	Predictive Emissions Monitoring
3	Department Approved and Supervised Source Emission Testing
Performed during the Reporting Year
4	Department Approved and Supervised Source Emission Testing
Performed in a Prior Year
5	Mass/Material Balance
6	AP-42 Emission Factor or Other EPA-Approved Emission Estimation
Methodology (for example, TANKS4 and WATER9) or Selection of a
Source Emission Test for a Similar Size Unit from the AP-42 Basis
and Background Documents
7	Manufacturer's Estimate
8	Others (including):
Industry Council or Organization Emission Factor
--Source Emission Testing Not Approved or Supervised by the
Department
--Good Engineering Judgement/Factor

(b) A method listed in Table 3, which is ranked lower than the highest-ranked reasonably available method, may be used to quantify actual emissions for an Emission Statement if any of the following conditions are met:

1. The owner or operator can demonstrate that use of the lower-ranked method results in more accurate quantification of emissions than what would have been achieved using any higher-ranked method that is reasonably available; or

2. Use of the lower-ranked method is consistent with EPA's guidance, including its hierarchy for emission calculation methods and/or its identification of preferred methods for specific types of source operations, as set forth in the most current version of EPA's Emissions Inventory Improvement Program Guidance Document.

(c) For each emissions calculation method used in an Emission Statement which is a lower-ranked method being used pursuant to (b) above, a written justification shall be prepared documenting the basis for the use of the lower-ranked method. This justification shall be maintained on-site and be provided upon request to the Department. It shall include:

1. Identification of the quantification method that was the highest-ranked reasonably available method pursuant to the rankings in Table 3;

2. Identification of the method selected by the owner or operator pursuant to (b) above; and

3. An explanation of how selection of this method conforms with the applicable condition(s) in (b) above.

N.J. Admin. Code § 7:27-21.6

New Rule by R.2003 d.86, effective 2/18/2003 (operative March 24, 2003).
See: 34 New Jersey Register 695(a), 35 New Jersey Register 1059(a).
Rewrote the section. Recodified from 7:27-21.6(l).