Hunters Point Power Plant Closure and Cleanup
In 1998, PG&E submitted a plan to the California Public Utilities Commission to close the plant as soon as replacement sources of electric power were brought online to ensure reliable energy for residents and businesses. PG&E brought nine new power transmission projects online over the next eight years. Upon completion of the last of those projects in 2006, the CAISO (California Independent System Operator) and FERC (Federal Energy Regulatory Commission) granted approval and the plant was closed. Since the plant was closed, PG&E has dismantled most structures at the site and conducted environmental investigations to inform a cleanup plan. The cleanup plan was approved by the California Department of Toxic Substances Control (DTSC) on June 10, 2010. PG&E completed most of the planned soil cleanup by the end of 2011 and is on schedule to finish the rest in 2012, when PG&E will also begin groundwater cleanup.
Area-By-Area Update and Upcoming Activities:
Below is an area-by-area update of the work that was has been completed by the end of 2011 and a brief summary of planned 2012 activities.
Area A (see site map below)
In 2011, PG&E completed soil removal activities and restoration work in Area A. The area is now paved with asphalt.
Area H (see site map below)
Soil removal and restoration, which included reseeding the area with native plants and adding a protective cover of coconut matting, was completed in 2011.
Area C/D (see site map below)
The soil removal and restoration of Area C/D was completed. In 2012, PG&E will be working in the area to close underground structures that remain from the operation of the former power plant.
Area J (see site map below)
Soil removal and restoration have been completed in Area J with the exception of a small area between the retaining walls and Evans Avenue which will be addressed in 2012.
Area B (see site map below)
We have completed soil removal and paving of the northern and central portion of Area B. In 2012, we will focus on completing the soil remediation in the southern portion of the area, and begin groundwater remediation in the southern area.
Area I- (see site map below)
In 2012, we plan to excavate portions of Area I to remove petroleum in the soil that has been a source of groundwater impacts. This work will involve removing soil down to the groundwater table, and treating impacted groundwater in place to prevent contaminated groundwater from reaching the Bay. (groundwater in this area is not used for drinking water).
Areas E and F (shoreline areas—see site map below)
PG&E has begun studying these areas (located outside the former power plant fence-line) to determine what, if any, cleanup measures are needed. We plan to complete these studies in 2012 and perform any needed cleanup in 2013.
Area G (sediment area—see site map below)
PG&E has concluded several years of studying the bay sediment. DTSC has determined that there are no power plant impacts in the area and therefore, no cleanup is needed for the sediments surrounding the former power plant.
New Portion of Area E (see site map below)
This is a new area, previously thought to be necessary for the operation and maintenance of the power grid. It has now been identified as potentially available for future redevelopment. Therefore, this new portion of Area E will be added to the cleanup plan.