Lake Cressbrook is open for boating and fishing across the Easter long weekend.
Water test results have shown the bacterial levels have fallen to a reading that is safe for water-based recreation, allowing the dam to re-open for more outdoor activities.
In contrast, the bacterial levels have not fallen sufficiently at Cooby Dam, which remains closed to all recreation activities as a safety precaution until further notice.
Similarly, Lake Perseverance is closed for all recreation activities.
The bacteria represent no risk to drinking water supplies as they are removed by the water treatment and disinfection process.