The State Hygienic Laboratory Limnology sections are based in Ankeny and Coralville. The limnologists frequently work in partnership with the Iowa Department of Natural Resources, U.S. Environmental Protection Agency, the U.S. Fish and Wildlife Service, the U.S. Geological Survey, several universities, numerous public and private conservation groups, private consulting firms, and individuals to collect and analyze samples of surface water, wastewater and groundwater. For the Iowa Department of Natural Resources alone, Limnology staff collect samples from more than 200 different waterways (Iowa’s lakes, rivers, streams and impoundments). Results from this monitoring and analysis provide insight into water quality. The program also generates data that can aid state regulators who make decisions about the protection of Iowa’s vital natural resources.