On Aug. 7, 2017, EPA issued this Notice of Violation under Section 113(a)(l) of the Clean Air Act, 42 U.S.C. § 7413(a)(l). EPA found that S.H. Bell Company was violating the Illinois State Implementation Plan at its Chicago facility.

EPA determined that manganese emissions exceed the health-based screening level at the S.H. Bell facility, 10218 South Avenue O, Chicago. Four months of air monitoring data from the S.H. Bell facility for March 1, 2017, through June 30, 2017, show an average concentration of 0.32 micrograms per cubic meter (µg/m3) of manganese. The minimal risk level for chronic inhalation exposure to manganese is 0.3 µg/m³. The company submitted the data to EPA on August 1.

• S.H. Bell Chicago Notice of Violation - August 2017 (PDF)(5 pp, 648 K, Aug. 7, 2017)