The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries by the Frasch process. Not covered are sulfur refining operations that are not performed at the mining and collection site.
authority: Secs. 301, 304 (b) and (c), Federal Water Pollution Control Act, as amended (
33 U.S.C. 1251,
1311,
1314,
86. 816
source: 40 FR 48657, Oct. 16, 1975, unless otherwise noted.
cite as: 40 CFR 436.190