To the extent that most people ever sit back and think about the Clean Air Act, 42 U.S.C. § 7401, et seq., (CAA), or the Clean Water Act, 33 U.S.C. § 1251, et seq., (CWA), the mind probably conjures up images of the emission stacks and industrial wastewater discharge outfalls at large industrial facilities that these laws were enacted to regulate. Over the more than three decades that these laws have been on the books, however, their scope and influence have evolved and expanded significantly.
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