Squantz Pond State Park is again closed to swimming. The state Department of Energy and Environmental Protection’s Water Quality Report shows elevated levels of bacteria detected in water sampling. DEEP closed the park to swimming last Wednesday, but it reopened on Thursday. The water was retested yesterday, with results expected today. 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.