Fecal Bacteria Advisory On Hampton Beach; Crystal Lake Reopens: New Hampshire Healthy Swimming Update

CONCORD, NH — State officials are warning of fecal bacteria in three major parks, while another popular swimming area in the Queen City has reopened.

According to the latest Healthy Swimming Mapper, current fecal bacteria advisories are listed at Hampton Beach State Park, White Lake State Park Beach in Tamworth, and Wentworth State Park Beach in Wolfeboro. Samples were taken at the beaches on Tuesday and Wednesday. More sampling was done on Thursday and Friday, with results expected on Friday and Saturday.

While not listed as an advisory or warning, Emerson Pond in Rindge has an active cyanobacteria bloom report from July 6, from both the shoreline and the main body of water, according to the state. The sample collected led to the conclusion it was “too numerous to count.”

Manchester health officials also reopened Crystal Lake’s public beach Thursday for swimming.

“Analysis of water samples taken on July 10, 2025, indicate that cyanobacteria levels are now within acceptable limits,” Aaron Krycki of the Manchester Board of Health stated.

Ongoing water quality monitoring results in Manchester are available here.

State cyanobacteria warnings can be found here.

The Healthy Swimming Mapper can be found here.

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