Kgc 3110 4th Ave South is a superfund site located at 3110 4th Avenue South, Clear Lake, IA 50428. The Environmental Protection Agency (EPA) identifies sites such as Kgc 3110 4th Ave South 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. Kgc 3110 4th Ave South 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.