HUNTINGTON BEACH, Calif. (AP) — Crews on the water and on shore worked feverishly Sunday to limit environmental damage from one of the largest oil spills in recent California history, caused by a suspected leak in an underwater pipeline that fouled the sands of famed Huntington Beach and could keep the beaches there closed for weeks or longer.

Booms were deployed on the ocean surface to try to contain the oil while divers sought to determine where and why the leak occurred. On land, there was a race to find animals harmed by the oil and to keep the spill from harming any more sensitive marshla...