SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 260.46a - COMPLIANCE PROVISIONS

(a) Compliance with the particulate matter emission limitation under Rule 260.42a(a)(1) constitutes compliance with the percent reduction requirements for particulate matter under Rule 260.42a(a)(2) and (3).

(b) Compliance with the nitrogen oxides emission limitation under Rule 260.44a(a) constitutes compliance with the percent reduction requirements under Rule 260.44a(a)(2).

(c) The particulate matter emission standards under Rule 260.42a and the nitrogen oxides emission standards under Rule 260.44a apply at all times except during periods of startup, shutdown, or malfunction. The sulfur dioxide emission standards under Rule 260.43a apply at all times except during periods of startup, shutdown, or when both emergency conditions exist and the procedures under Section (d) of this rule are implemented.

(d) During emergency conditions in the principal company, an affected facility with a malfunctioning flue gas desulfurization system may be operated if sulfur dioxide emissions are minimized by:

  1. Operating all operable flue gas desulfurization system modules, and bringing back into operation any malfunctioned module as soon as repairs are completed,
  2. Bypassing flue gases around only those flue gas desulfurization system modules that have been taken out of operation because they were incapable of any sulfur dioxide emission reduction or which would have suffered significant physical damage if they had remained in operation, and
  3. Designing, constructing, and operating a spare flue gas desulfurization system module for an affected facility larger than 315 million kcal/hr (1,250 million Btu/hr) heat input (approximately 125 MW electrical output capacity). The Control Officer may at his discretion require the owner or operator within 60 days of notification to demonstrate spare module capability. To demonstrate this capability, the owner or operator must demonstrate compliance with the appropriate requirements under sections (a), (b), (d), (e), and (i) under Rule 260.43a for any period of operation lasting from 24 hours to 30 days when:

    (i) Any one flue gas desulfurization module is not operated,

    (ii) The affected facility is operating at the maximum heat input rate,

    (iii) The fuel fired during the 24-hour to 30-day period is representative of the type and average sulfur content of fuel used over a typical 30-day period, and

    (iv) The owner or operator has given the Control Officer at least 30 days notice of the date and period of time over which the demonstration will be performed.

(e) After the initial performance test required under Rule 260.8, compliance with the sulfur dioxide emission limitations and percentage reduction requirements under Rule 260.43a and the nitrogen oxides emission limitations under Rule 260.44a is based on the average emission rate for 30 successive boiler operating days. A separate performance test is completed at the end of each boiler operating day after the initial performance test, and a new 30-day average emission rate for both sulfur dioxide and nitrogen oxides and a new percent reduction for sulfur dioxide are calculated to show compliance with the standards.

(f) For the initial performance test required under Rule 260.8, compliance with the sulfur dioxide emission limitatio ns and percent reduction requirements under Rule 260.43a and the nitrogen oxides emission limitation under Rule 260.44a is based on the average emission rates for sulfur dioxide, nitrogen oxides, and percent reduction for sulfur dioxide for the first 30 successive boiler operating days. The initial performance test is the only test in which at least 30 days prior notice is required unless otherwise specified by the Control Officer. The initial performance test is to be scheduled so that the first boiler operating day of the 30 successive boiler operating days is completed within 60 days after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup of the facility.

(g) Compliance is determined by calculating the arithmetic average of all hourly emission rates for SO2 and NOx for the 30 successive boiler operating days, except for data obtained during startup, shutdown, malfunction (NOx only), or emergency conditions (SO2only). Compliance with the percentage reduction requirement for SO2 is determined based on the average inlet and average outlet SO2 emission rates for the 30 successive boiler operating days.

(h) If an owner or operator has not obtained the minimum quantity of emission data as required under Rule 260.47a of this subpart, compliance of the affected facility with the emission requirements under Rule 260.43a and Rule 260.44a of this subpart for the day on which the 30-day period ends may be determined by the Control Officer by following the applicable procedures in Sections 6.0 and 7.0 of Reference Method 19 of Part 60, Chapter I, Title 40, Code of Federal Regulations, Appendix A.