HARTFORD, Conn. (AP) — State environmental and health officials are warning that flood waters from superstorm Sandy in several towns may be contaminated because of raw sewage discharges from treatment plants and pumping stations.

The Department of Energy and Environmental Protection says flooding and power outages caused raw sewage discharges in Branford, Bridgeport, East Lyme, Greenwich, New Hartford and New Haven.

The agency says 26 of the 89 treatment plants in the state and 264 pumping stations are running on emergency power.

Officials say there are no cleanup plans because raw sewage breaks down and gets diluted in large bodies of water. But they advise people to stay away from flood waters and assume they’re contaminated.

Gov. Dannel P. Malloy quipped that people should avoid eating clams and oysters from Long Island Sound.