Mcarthur Dairy is a superfund site located at 308 Nw 5th St, Okeechobee, FL 34972. The Environmental Protection Agency (EPA) identifies sites such as Mcarthur Dairy 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. Mcarthur Dairy is currently registered as an Active superfund site by the EPA. However, it is not on the NPL (National Priorities List), which means the EPA does not consider it one of the nation's most hazardous waste sites.