Manufactured Gas Plants
Former Santa Rosa Manufactured Gas Plant
PG&E, under the oversight of the North Coast Regional Water Quality Control Board, is investigating and remediating the site of a former manufactured gas plant (MGP) that historically operated at the corner of First Street and Santa Rosa Avenue in Santa Rosa. The site is currently the location of an office building parking lot, and is no longer owned by PG&E.
PG&E began investigating MGP residues at this site in 2004. A remediation system, called electrical resistance heating (ERH), was employed for the most heavily impacted portion of the site. This system was very successful in removing MGP residue from beneath the ground surface and PG&E is currently designing a plan to stabilize the soils in this area.
PG&E works closely with the property owner to minimize the impact of the remediation project on their tenants and customers, and keeps them informed of site activities through newsletters, meetings and other communications.
Remediation plans for the remaining portions of the MGP site are being developed under the continued oversight of the Regional Water Board and the Santa Rosa Fire Department. PG&E prepared a Feasibility Study describing the most viable options for the next phase of remediation. This plan presented remedial options that balance environmentally protective practices with an effort to limit impact to the surrounding community and local businesses and was approved by the Water Board.
PG&E acquired and operated the former Santa Rosa MGP from 1908 until 1924, at which time the plant was closed and dismantled. The site later operated as a natural gas distribution center and PG&E sold the property in 1987.
Additional Resources:
- Informational Notice – July 2010 (PDF, 298 KB)
- Draft Feasibility Study
- Regional Water Board Resources & Contact Information
Contact Information
Environmental Remediation
Information and Response Line
1-866-247-0581
Important Health & Safety Information
There is no indication that PG&E's former MGP sites pose any health concerns to the public, based on our testing, experience, and extensive review of medical literature.
“PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation. © 2009 Pacific Gas and Electric Company. All rights reserved.
