Pg And E Gas Plant Ukiah is a superfund site located at W Side Leslie @perkins/peach, Ukiah, CA 95482. The Environmental Protection Agency (EPA) identifies sites such as Pg And E Gas Plant Ukiah 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. Pg And E Gas Plant Ukiah 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.