Twin Lakes is closed to swimming after sample test water returned results indicating “high fecal bacteria.” The City and Borough of Juneau sent out a notice Saturday recommending that no one, including pets, swim in the lakes. The city issued the same notice about two weeks ago.

Twin Lakes is a popular recreation spot for families and pet owners. Feces not picked up by pet owners can leech into the lake; rain only hastens contamination. Last month was Juneau’s wettest July on record.

The next sampling will take place Monday morning and will include testing of water entering the lakes in an attempt to find the source of the bacteria.