MINNEAPOLIS (AP) – Minneapolis park officials say contaminated water led to a record number of beach closures in this summer. Half of the city’s 12 beaches were not safe to swim in at various times during the summer. That’s the most since Minneapolis started a water sampling program in 2003, Minnesota Public Radio reported. Park officials say heavy rainfall was part of the problem. Officials say heavy rain brings in stormwater runoff and that runoff brings in debris and bacteria from streets and yards.