Waterloo-Cedar Falls Courier: Black Hawk has joined a growing list of counties and environmental groups calling for a moratorium on new "factory" livestock farms. The county Board of Supervisors voted unanimously Tuesday to approve a resolution asking for the governor and Iowa legislators to halt any new concentrated animal feeding operations from being built until the state’s water quality improves. Supervisors in 25 more of the state’s 99 counties have passed similar resolutions.