40 CFR 125.94 : Protection Of Environment (§ 1.1 To Parts 1851-1899) — (Parts 100-103 To § 135.13) — Environmental Protection Agency (Continued) (Parts 100-103 To § 135.13) — Water Programs (Parts 100-103 To § 135.13) — Criteria And Standards For The National Pollutant Discharge Elimination System (§ 125.1 To § 125.139) — Requirements Applicable To Cooling Water Intake Structures For Existing Facilities Under Section 316(B) Of The Clean Water Act (§ 125.90 To § 125.99) — As an owner or operator of an existing facility, what must I do to comply with this subpart?