To the editor: I would like to highlight the most important information in your recent article about new rules that will govern California water deliveries and environmental protections: “Under the new rules, [U.S Fish and Wildlife Service official Paul Souza] said [Sacramento-San Joaquin Delta] pumping restrictions would be based on real-time monitoring of where smelt and migrating salmon are swimming in the delta, rather than the seasonal prescriptions contained in the current regulations.” The new rules are based on the latest science and real-time monitoring rather than a particular calendar date to determine the needs of fish. This is good news for all Californians.