N.J. Admin. Code § 7:27-10.5

Current through Register Vol. 56, No. 24, December 18, 2024

Section 7:27-10.5 - SO2 emission rate determinations

(a) For purposes of N.J.A.C. 7:27-10.2(h), a 24-hour emission rate shall be calculated as follows:

1. Measure the emissions for each one-hour block using a certified Continuous SO[2] Emissions Monitoring System, a certified continuous oxygen emissions monitoring system, and EPA Method 19, "Determination of Sulfur Dioxide Removal Efficiency and Particulate Matter, Sulfur Dioxide, and Nitrogen Oxide Emission Rates," as identified at 40 CFR Part 60, Appendix A, incorporated herein by reference. An owner or operator may seek approval of an alternative Department approved method to use instead of EPA Method 19, only if the owner or operator is combusting clean, unprocessed wood, in which case the owner or operator shall submit a written application to the Department at the address at (d) below; and

2. Average the emissions determined for the one-hour blocks from (a)1 above for one calendar day during which combustion of solid fuel occurred. The 24-hour emission rate shall include only the one-hour blocks during which solid fuel is combusted. For example, if a source combusted solid fuel from midnight to 4:00 A.M. and did not operate from 4:00 A.M. to midnight, the 24-hour emission rate is calculated by adding the total of the emissions from the four one-hour blocks from midnight to 4:00 A.M. and dividing that sum by four.

(b) For purposes of N.J.A.C. 7:27-10.2(h), a 30-calendar-day rolling average emission rate shall be calculated as follows:

1. Pursuant to (a) above, determine the 24-hour emission rates for 30 consecutive calendar days;

2. Divide the sum of the 24-hour emission rates by the total number of days on which the source was operated, during the 30-consecutive-day period, pursuant to (b)4 below. The result is the 30-calendar-day rolling average emission rate for the 30th day;

3. Calculate a new 30-calendar-day rolling average emission rate for each subsequent calendar day pursuant to (b)1 and 2 above; and

4. Any calendar day during which no combustion of solid fuel occurred shall not be included in the 30-calendar-day rolling average emission rate. For example, if a source did not combust solid fuel during two calendar days of a 30-calendar-day rolling average emission rate period, the 24-hour emission rates of the 28 days during which emissions occurred would be used to determine the 30-calendar-day rolling average emission rate. The total emissions for the 28 days would be divided by 28, not 30.

(c) For purposes of N.J.A.C. 7:27-10.2(h), when calculating a SO[2] emission rate for an affected coal-fired unit, the owner or operator may exclude SO[2] emissions as follows:

1. In calculating a 30-calendar-day rolling average SO[2] emission rate for a unit that has ceased firing fossil fuel, for a period of time not to exceed two hours, from the restart of the unit to the time that the unit is fired with coal; and

2. In calculating a 24-hour SO[2] emission rate for a unit, the period of time in which the unit is not fired with coal.

(d) The owner or operator submitting a written application to the Department pursuant to (a)1 above shall submit the application to the following address: Department of Environmental Protection

Division of Air Quality

Air Quality Permitting Program

Bureau of Air Permits

401 East State Street

Mail Code 401-02

PO Box 420

Trenton, NJ 08625-0420

N.J. Admin. Code § 7:27-10.5

New Rule, R.2009 d.137, effective 4/20/2009 (operative May 19, 2009).
See: 40 N.J.R. 4390(a), 41 N.J.R. 1752(a).
Administrative change.
See: 43 N.J.R. 2328(a).