The Lake Hiawatha Beach and the 32nd Street Beach at Lake Calhoun are temporarily closed as of Tuesday, July 23, due to temporary elevated bacteria levels. The Minneapolis Park and Recreation Board proactively samples its 12 beaches on a regular basis. The MPRB automatically closes any beach that has E. coli bacteria levels that exceed state specified guidelines. The beaches will be re-tested and will re-open as soon as possible. In the meantime, park visitors can continue to enjoy nearby beaches in the parks system. At Calhoun, which has three beaches on the lake, the two other beaches are open. Not far from Lake Hiawatha, the two beaches at Lake Nokomis are open.
High bacteria (including E. coli) levels typically come from waterfowl and/or from stormwater that washes into lakes after rain. At Lake Hiawatha, Minnehaha Creek flows through the lake and brings a large volume of stormwater runoff to the lake. The Park Board posts its weekly beach water testing results.