• LAWRENCE LIVERMORE LAB SITE 300 (USDOE), ALAMEDA County, CA

Stage of Clean-up: Design Underway

Conditions at proposal (July 14, 1989): Lawrence Livermore National Laboratory (LLNL) (Site 300) covers approximately 11 square miles north of Corral Hollow Road near the City of Livermore, California, straddling the Alameda/San Joaquin County line. The area is rural. LLNL was first owned by the Atomic Energy Commission. It is now owned by the U.S. Department of Energy (USDOE) and operated by the University of California. The main LLNL site, located 15 miles west of Site 300, was placed on the NPL in July 1987. Site 300's primary mission since its inception in 1955 has been to test high explosives. It has also operated a number of solid waste landfills, accepting waste from the LLNL main site, Site 300, and Lawrence Berkeley Laboratory. Land disposal ceased at Site 300 in November 1988. Site 300 also formerly maintained a number of waste lagoons and dry wells for disposal of liquid wastes and waste waters. The dry wells have been removed from service, and the lagoons have been replaced by two double-lined surface impoundments. The lagoons are scheduled to be capped in the summer of 1989. Tests conducted in 1983 by an LLNL contractor detected TRICHLOROETHYLENE (TCE), TRANS-1,2-DICHLOROETHYLENE, and TETRACHLOROETHYLENE in on-site monitoring wells.  More...

Sources of Contamination:

• Explosive disposal/detonation
• Inadvertent spill
• Lagoon disposal
• Landfill
• Storage - drums/containers of waste
• Storage - finished product
• Storage - raw material
• Waste pile
• Waste tank - above ground
• Waste tank - below ground

Groundwater and soil have been contaminated with solvents and other VOLATILE ORGANIC COMPOUNDS (VOCS). Groundwater also contains TRITIUM. The primary health threat is drinking contaminated groundwater.

Contaminants Detected
	Ground Water	Surface Water	Air	Soil	Other
1,2-TRANS-DICHLOROETHYLENE	X
BERYLLIUM	X
BERYLLIUM COMPOUNDS	X
CHLOROFORM	X
LEAD	X
TETRACHLOROETHYLENE	X
TRICHLOROETHYLENE	X
URANIUM	X

Groundwater and Drinking Water
Were drinking water wells shut down due to contamination?	No
Are drinking water wells potentially threatened?	Yes
Population served by the threatened wells:	No data
Aquifer discharges into:	A drinking water aquifer
	Surface water
Population served by water wells in the aquifer:	25 - 100

List ground water uses.

EPA Hazard Ranking System scores for LAWRENCE LIVERMORE LAB SITE 300 (USDOE):

Less Hazard

National Average

More Hazard

0%					50%					100%

Overall site:

Ground water migration:

Rank Superfund sites in the U.S., CALIFORNIA, or in ALAMEDA County by EPA Hazard Ranking Scores.

*Note: EPA's Hazard Ranking System is designed to screen and prioritize sites for the Superfund program, based on limited data available at time of listing. These scores are not based on a comprehensive risk assessment of the site and do not reflect conditions after initiation of cleanup work.

Number of PRPs currently associated with this site:	0
Hazardous waste received from off-site generators/transporters?	No
Number of past and present PRPs who contributed less than 1% of the waste:	0
Number of owners/operators which are also municipalities:	0

EPA Site Information

• NPL Fact Sheet
• Record of Decision (ROD) Abstracts
• NPL Site 5 Year Reviews
• Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS) Hazardous Waste Site Information
• Superfund Hazardous Waste Site Advanced Query Form

Scorecard reports for ALAMEDA County on:

• Potential Sources of Land Contamination
• Criteria Air Pollutants
• Hazardous Air Pollutants