Squantz Pond State Park is again closed to swimming.  The Department of Energy and Environmental Protection’s Water Quality Report shows elevated levels of bacteria detected in water sampling.  The water will be retested today, with results expected tomorrow.  DEEP collects samples of state-run swimming areas each week and the Department of Public Health's laboratory analyzes them for presence of certain indicator bacteria with potential for contamination.  Black Rock in Watertown and Indian Well in Shelton also have closed their swim areas.