Ohiowa Public Water Supply is a superfund site located at Main & Fremont St, Ohiowa, NE 68416. The Environmental Protection Agency (EPA) identifies sites such as Ohiowa Public Water Supply because they pose or had once posed a potential risk to human health and/or the environment due to contamination by one or more hazardous wastes. Ohiowa Public Water Supply is currently registered as an Archived superfund site by the EPA and does not require any clean up action or further investigation at this time.