River Harbor Development is a superfund site located at River Harbor Drive Extended, Salisbury, MD 21801. The Environmental Protection Agency (EPA) identifies sites such as River Harbor Development 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. River Harbor Development 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.