Boats will soon be forbidden from releasing sewage anywhere in Puget Sound if the state Department of Ecology has its way. The agency is seeking federal protection, asking the EPA to declare the Sound a “no discharge zone” for vessel sewage. Local regulators have been working for years to clean up Puget Sound. State agencies have upgraded wastewater treatment plants, provided funds for repair and maintenance of failing septic systems and worked to prevent polluted storm water runoff from cities