Restriction of Emission of Fluorides From Primary Aluminum Reduction Installations

PURPOSE: This rule establishes the maximum allowable rate of primary (stack) emissions of total fluorides from primary aluminum reduction installations, except where New Source Performance Standards apply (as provided in 10 CSR 10-6.070). Fugitive emissions (those escaping the primary collection system) for installations of the type found in Missouri have been determined to be small, due to the efficiencies of the primary collection systems and are not otherwise regulated. (1) Application. This rule shall apply to primary (stack) emissions of total fluoride from potroom groups and anode bake plants within a primary aluminum reduction installation constructed before August 13, 1981. (2) Definitions of words or phrases used in this rule may be found in 10 CSR 10-6.020. (3) Maximum allowable emission of total fluorides. Primary (stack) emissions of total fluorides from any primary aluminum reduction installation shall not exceed 1.25 kilograms/metric ton (2.5 pounds/ton) of aluminum produced. (4) Time Schedule for Compliance. All sources subject to this rule shall comply by the schedule set forth as follows: Installation of air pollution control equipment completed September 1, 1981; Start-up period completed December 1, 1981; Compliance testing completed December 31, 1981. (5) Monitoring of Operations. (A) The owner or operator of any primary aluminum reduction installation subject to the requirements of this rule shall maintain and operate weighing devices which can be used to monthly determine the weight of aluminum produced. The weighing devices shall have an accuracy of plus or minus five percent (±5%) over their operating range. (B) The owner or operator of any affected primary aluminum reduction installation shall maintain a record of the daily production rates of aluminum. These records shall be retained by the owner or operator for a minimum of two (2) years. (6) Performance Testing. Compliance with the requirements of this rule shall be determined as set forth in 10 CSR 10-6.030(13), Method 13A or 13B. AUTHORITY: section 643.050, RSMo Supp. 1992.* Original rule filed March 11, 1981, effective Aug. 13, 1981. *Original authority: 643.050, RSMo 1965, amended 1972.