This project improves summertime streamflows in the Mattole River headwaters by seasonally limiting diversions through storage and forbearance, thereby increasing water quantity, improving water quality, enhancing rearing requirements, and facilitating fish passage. The water conserved includes conservation improvements and leak-proofing, together with tank storage and cessation of all diversions during summer low flows. The project provides water security for institutional and residential use in a rural community that is completely dependent on surface water diversions.