By Mark Prado, The Marin Independent Journal, Novato, Calif. Jul. 10--OAKLAND -- Houseboat marinas, yacht harbors and cities will face stricter regulations from a state water agency that wants to see Richardson Bay so clean that shellfish can be raised for human consumption.

By Mark Prado, The Marin Independent Journal, Novato, Calif. Jul. 9--OAKLAND -- Houseboat marinas, yacht harbors and cities will face stricter regulations from a state water agency that wants to see Richardson Bay so clean that shellfish can be raised for human consumption.

By Mark Prado Dead birds continued to wash up on the shores of Richardson Bay in Marin County as bird experts tried to determine whether recent sewage spills or other, possibly natural, factors caused the deaths. Through Monday, 162 dead birds had been counted since Jan.

By Mark Prado Dead birds continued to wash up on the shores of Richardson Bay in Marin County as bird experts tried to determine whether recent sewage spills or other, possibly natural, factors caused the deaths. Through Monday, 162 dead birds had been counted since Jan.