Dion M O And Sons is a superfund site located at 1515 & 1569 W 16th St, Long Beach, CA 90813. The Environmental Protection Agency (EPA) identifies sites such as Dion M O And Sons 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. Dion M O And Sons 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.