Pg And E Gas Plant Pittsburg is a superfund site located at Approx 1/2 Mi E Harbor/8th, Pittsburg, CA 94565. The Environmental Protection Agency (EPA) identifies sites such as Pg And E Gas Plant Pittsburg 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 Pittsburg 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.