Pg And E Gas Plant Petaluma is a superfund site located at First St Bet C & D Sts, Petaluma, CA 94952. The Environmental Protection Agency (EPA) identifies sites such as Pg And E Gas Plant Petaluma 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 Petaluma 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.