Ariz. Admin. Code § 18-2-715.02

Current through Register Vol. 30, No. 50, December 13, 2024

Section R18-2-715.02 - Standards of Performance for Existing Primary Copper Smelters; Fugitive Emissions

A. For purposes of this Section, the compliance date, unless otherwise provided in a consent decree or a delayed compliance order, shall be January 14, 1986.

B. No later than 24 months before the compliance date, the owner or operator of a smelter subject to R18-2-715 shall submit to the Director the results of an evaluation of the fugitive emissions from the smelter. The evaluation results shall contain all of the following information:

1. A measurement or accurate estimate of total fugitive emissions from the smelter during typical operations, including planned start-up and shutdown. The measurement or estimate shall contain the amount of both average short-term (24 hours) and average long-term (monthly) fugitive emissions from the smelter. The evaluation plan shall be approved in advance by the Department and shall specify the method used to determine the fugitive emission amounts, including the conditions determined to be "typical operations" for the smelter.

2. A measurement or accurate estimate of the relative proportion, expressed as a percentage, of total fugitive emissions during typical operations, including planned start-up and shutdown, produced by any of the following smelter processes:

a. Roaster or dryer operation;

b. Calcine or dried concentrate transfer;

c. Reverberatory furnace operations, including feeding, slag return, matte and slag tapping;

d. Matte transfer; and

e. Converter operations.

3. The measurement technique or method of estimation used to fulfill the requirement in subsection (B)(2) shall be approved in advance by the Department.

4. The results of at least a six-month fugitive emission impact analysis conducted during that part of the year when fugitive emissions are expected to have the greatest ambient air quality impact. The study shall utilize sufficient measurements of fugitive emissions, meteorological conditions and ambient sulfur dioxide concentrations to associate fugitive emissions with specific measured ambient concentrations of sulfur dioxide. The study shall describe in detail the techniques used to make the required determinations. The design of the study shall be approved in advance by the Department.

C. On the basis of the results of the evaluation as well as other data and information contained in the records of the Department, the Director shall determine whether fugitive emissions from a particular smelter have the potential to cause or significantly contribute to violations of the ambient sulfur dioxide standards in the vicinity of the smelter. If the Director finds that fugitive emissions from a particular smelter have the potential to cause or significantly contribute to violations of ambient sulfur dioxide standards in the vicinity of a smelter, then the Director shall adopt rules specifying the emission limits and undertake other appropriate measures necessary to maintain ambient sulfur dioxide standards.

D. The requirements of subsection (B) shall not apply to a smelter subject to this Section if the owner or operator of that smelter can demonstrate to the Director both that:

1. Compliance with the applicable cumulative occurrence and emission limits listed in R18-2-715(F) will require the smelter to undergo major modifications to its physical configuration or work practices prior to the compliance date, and

2. That the modification will reduce fugitive emissions to such an extent that such emissions will not cause or significantly contribute to violations of ambient sulfur dioxide standards in the vicinity of the smelter.

E. In order to assess the sufficiency of the cumulative occurrence and emission limits contained in R18-2-715(F) to maintain the ambient air quality standards for sulfur dioxide set forth in R18-2-202, an owner or operator of a smelter subject to this Section shall continue to calibrate, maintain and operate any ambient sulfur dioxide monitoring equipment owned by the smelter owner or operator and in operation within the area of the smelter enclosed by a circle with 10-mile radius as calculated from a center point which shall be the point of the smelter's greatest sulfur dioxide emissions, for a period of at least three years after the compliance date.

1. Such monitors shall be operated and maintained in accordance with 40 CFR 50 and 58 and such other conditions as the Director deems necessary.

2. The location of ambient sulfur dioxide monitors and length of time such monitors remain at a location shall be determined by the Director.

F. The owner and operator of the copper smelter located near Hayden, Arizona at the latitude and longitude provided in R18-2-715(F)(1) shall comply with Section R18-2-715.02 until the effective date of R18-2-B1302 as determined by R18-2-B1302(A)(2). The owner and operator of the copper smelter located near Miami, Arizona at the latitude and longitude provided in R18-2-715(F)(2) shall comply with Section R18-2-715.02 until the effective date of R18-2-C1302 as determined by R18-2-C1302(A)(2).

Ariz. Admin. Code § R18-2-715.02

Section R18-2-715.02 renumbered from R18-2-515.02 and amended effective November 15, 1993 (Supp. 93-4). Amended by final rulemaking at 23 A.A.R. 767, effective 5/7/2017.