Pacific Southwest, Region 9: Superfund
Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations
EPA #: CAD980737613
Congressional District: 05
Other Names: City of Sacramento Dump Associated Metals PG&E Power Plant
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Description and History
NPL Listing History
NPL Status: Deleted
Proposed Date: 12/30/82
Final Date: 09/08/83
Deleted Date: 09/10/91
The Jibboom Junkyard site is approximately 9 acres in size, although roughly 7 acres have been covered by an interstate highway (I-5). A former electric generating plant immediately north of the Jibboom site covers approximately 2 additional acres which have been addressed by State cleanup actions. The site, formerly owned by the Associated Iron and Metals Company, began operations in 1951. Operations included metal salvaging of a variety of materials such as railroad cars, army tanks, batteries, and electric transformers. Some scrap metal debris was disposed of on site, and transformer oil was poured onto the ground. Operations ceased in 1965, when the California Department of Transportation purchased the property. Following EPA's cleanup of the contaminated soil, the 2.3-acre uncovered section of the site used by the original salvage yard was transformed into a city park along the Sacramento River, the Robert T. Matsui Riverfront Park. State cleanup actions of the property north of Jibboom Park included removal of underground storage tanks and contaminated soil and fencing of some area around an historic old electric power generating plant. Approximately 10,000 people live within one mile of the site. The bicycle path on the river levee adjacent to the site receives regular traffic as a popular recreation route and during the week as a route to and from work. The city's drinking water is taken from the river along the western edge of the site. The river also is used for recreation and irrigation. The site is in the flood plain for the Sacramento River.
The successful return of the clean Site for use as the Robert T. Matsui Riverfront Park has been acknowledged by EPA as an example of Superfund site reuse. Please click here to access this Return to Use Initiative Fact Sheet.
Contaminants and Risks
- Soil and Sludges
Groundwater and soil were found to be contaminated with lead, PCBs and other contaminants related to waste metal processing. Coming into direct contact with or accidentally ingesting contaminated soil or groundwater may have posed a potential threat to human health before EPA's cleanup action.
Because the site was considered available for unrestricted access and unrestricted use after completion, no post-cleanup review was required. Region IX elected to complete a discretionary Five-Year Review after the City of Sacramento approved preliminary development plans in that could increase residential land use in the vicinity of the site. The 2007 review (attached below) concluded that the remedy at Jibboom Junkyard remains protective of human health and the environment because residual concentrations measured in the soil are within the risk range for residential use. EPA worked with the California Department of Transportation (CalTrans) regarding the portions of the site buried beneath the elevated freeway built in 1965. CalTrans implemented the recommended notification procedures through their maintenance alert database and underground services alert system (see attached 9/11/2008 memorandum).
Entire Site: In 1983, the site was fenced and soil samples were collected.
From 1985 to 1987, over 11,000 cubic yards of contaminated soil were excavated and removed to an approved hazardous waste disposal facility.
Deletion from the National Priorities List: The site was deleted from the EPA's National Priorities List in September of 1991. Cleanup goals specified in Records of Decision have been met, institutional controls are in place, and all required reports and records are completed. Only operations and maintenance activities, if any, remain. EPA concluded that the cleanup levels of the soil at the site of the current Jibboom Park remain protective of human health and the environment, and it remains available for unrestricted use and unlimited access. (UU/UE [Unlimited Use/Unrestricted Exposure])
Cleanup Results to Date
The removal of contaminated soil and fencing has eliminated the potential of exposure to hazardous materials at the Jibboom Junkyard site. All cleanup measures have been proven effective and the site was deleted from the NPL in September of 1991.
Potentially Responsible Parties
Potentially responsible parties (PRPs) refers to companies that are potentially responsible for generating, transporting, or disposing of the hazardous waste found at the site.
The PRP no longer exists (since 1965).
Documents and Reports
Public Information Repositories
The public information repositories for the site are at the following locations:
EPA Site Manager
Mail Code SFD
75 Hawthorne Street
San Francisco, CA 94105
EPA Community Involvement Coordinator
Mail Code SFD-6-3
75 Hawthorne Street
San Francisco, CA 94105
EPA Public Information Center
Department of Toxic Substances Control,
8800 Cal Center Drive
Sacramento, CA 95826-3200
Department of Transportation,
Office of Hazardous Waste and Noise,
PO Box 942874
Sacramento, CA 94274-001
After Hours (Emergency Response)