BRATTLEBORO, Vt. (AP) — A new online guide aims to track the bacteria levels of the Connecticut River at nearly 200 sites throughout New England.

The Connecticut River Conservancy's "Is It Clean?" webpage lists results from testing done at nearly 200 sites in Vermont, New Hampshire, Massachusetts and northern Connecticut. Vermont Public Radio reports samples taken from the river sites are tested for E. coli bacteria.

The conservancy says it's a good idea for boaters and swimmers to stay out of the water after heavy rainfall because bacteria levels tend to rise from polluted rain runoff.

River steward Andrea Donlon says the conservancy hopes the public uses the guide in a way that helps them find what areas of the river tend to be high in bacteria.