John Morris and the Boathouse on the Bay have hosted the Big Bang on the Bay, a July 3 fireworks show to raise money for the nonprofit Children Today and other charities, since 2011. … But for the last two years, environmental groups have fought the event, saying that the fireworks over Alamitos Bay are polluting the water and endangering birds in the area. This year, the Sierra Club Los Cerritos Wetlands Task Force persuaded the Los Angeles Regional Water Quality Control Board to issue an order requiring water quality tests and reports.