With an estimated 50-60% of waterway inspections going straight to enforcement, project managers can't afford to treat water control as just a contractor issue. In this session, Tanya Klinefelter, Environmental Manager at Naranjo Civil Constructors, translates permit language into real in-field decisions — covering the state regulatory landscape (COR400000 and COG080000), what "good engineering, hydrologic, and pollution control practices" actually means when an inspector asks you to prove it, the design factors behind any water control plan, and a side-by-side look at four diversion methods (cofferdam, gravity bypass, lined channel, and pump-around) with real inspection and violation examples. We'll close with sediment control essentials — stormwater run-on, the 14-day temporary stabilization rule, and concrete washout siting — plus live Q&A. You'll leave knowing how to spot permit risk early, ask the right questions of your team, and document your decisions before they're challenged.