Union Sugar is a superfund site located at 2820 W.bettervia Rd, Santa Maria, CA 93455. The Environmental Protection Agency (EPA) identifies sites such as Union Sugar 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. Union Sugar 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.