President Obama signed into law a water projects authorization bill and issued a statement cautioning agency managers to heed endangered species requirements before increasing irrigation water supplies in California's drought-stricken Central Valley. Critics of the drought relief, led by retiring Sen. Barbara Boxer, D-Calif., said the provisions would divert more water to California farmers than should be permitted by biological opinions that enforce the endangered species protections and protect Pacific salmon fisheries. Obama's signing statement sought to address that concern by saying he interprets the legislation to require “continued application and implementation of the Endangered Species Act, consistent with the close and cooperative work of federal agencies with the State of California to assure that state water quality standards are met.