Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 440 - Standards of performance for new stationary sources
Subchapter II - Standards of Performance
Section NR 440.29 - Secondary lead smelters

Universal Citation: WI Admin Code ยง NR 440.29

Current through August 26, 2024

(1) APPLICABILITY AND DESIGNATIONS OF AFFECTED FACILITY.

(a) The provisions of this section are applicable to the following affected facilities in secondary lead smelters: pot furnaces of more than 250 kg (550 lb) charging capacity, blast (cupola) furnaces and reverberatory furnaces.

(b) Any facility under par. (a) that commences construction or modification after June 11, 1973, is subject to the requirements of this section.

(2) DEFINITIONS. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02.

(a) "Blast furnace" means any furnace used to recover metal from slag.

(b) "Lead" means elemental lead or alloys in which the predominant component is lead.

(c) "Reverberatory furnace" includes the following types of reverberatory furnaces: stationary, rotating, rocking and tilting.

(d) "Secondary lead smelter" means any facility producing lead from a leadbearing scrap material by smelting to the metallic form.

(3) STANDARD FOR PARTICULATE MATTER.

(a) On and after the date on which the performance test required to be conducted by s. NR 440.08 is completed, no owner or operator subject to the provisions of this section may discharge or cause the discharge into the atmosphere from a blast (cupola) or reverberatory furnace any gases which:
1. Contain particulate matter in excess of 50 mg/dscm (0.022 gr/dscf).

2. Exhibit 20% opacity or greater.

(b) On and after the date on which the performance test required to be conducted by s. NR 440.08 is completed, no owner or operator subject to the provisions of this section may discharge or cause the discharge into the atmosphere from any pot furnace any gases which exhibit 10% opacity or greater.

(4) TEST METHODS AND PROCEDURES.

(a) In conducting the performance tests required in s. NR 440.08, the owner or operator shall use as reference methods and procedures the test methods in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, or other methods and procedures as specified in this subsection, except as provided in s. NR 440.08(2).

(b) The owner or operator shall determine compliance with the particulate matter standards in sub. (3) as follows:
1. Method 5 shall be used to determine the particulate matter concentration during representative periods of furnace operation, including charging and tapping. The sampling time and sample volume for each run shall be at least 60 minutes and 0.90 dscm (31.8 dscf).

2. Method 9 and the procedures in s. NR 440.11 shall be used to determine opacity.

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