§411.20. Applicability; description of the leaching subcategory.
40 C.F.R. § 411.20
The provisions of this subpart are applicable to discharges resulting from the process in which several mineral ingredients (limestone or other natural sources of calcium carbonate, silica, alumina, and iron together with gypsum) are used in the manufacturing of cement and in which kiln dust is contacted with water as an integral part of the process or water is used in wet scrubbers to control kiln stack emissions.
Notes, amendments, and revision history
Authority
Authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), and 307(c) of the Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c), and 1317(c); 86 Stat. 816 et seq., Pub. L., 92-500; 91 Stat. 1567, Pub. L. 95-217.
Source
Source: 39 FR 6591, Feb. 20, 1974, unless otherwise noted.