District Court, W.D. Pennsylvania August 8, 2013, Civil Action No. 12-342 (PennEnvironment v. PPG Industries, Inc.)

MEMORANDUM OPINION ■ AND ORDER

ROBERT C. MITCHELL, United States Magistrate Judge.

Plaintiffs, PennEnvironment and Sierra Club, bring this citizens suit pursuant to the Federal Water Pollution Control Act, 33 U.S.C. § 1365(a)(1) (Clean Water Act or CWA), section 7002(a)(1)(B) of the Resource Conservation and Recovery Act, 42 U.S.C.