These areas are potential sources of contaminant migration into ground water and into San Francisco Bay. In the past, wastes and waste water were directly discharged into San Francisco Bay. Benzene, PCBs, toluene, and phenols have been detected in on-site ground water in IRP tests conducted in 1987. A bottling company draws ground water from springs within 3 miles of hazardous substances on the annex. The company serves 19,000 people.
Sediments contain elevated levels of heavy metals and polyaromatic hydrocarbons.
Area surface waters are used for recreational activities, commercial navigation, and fishing. The Navy is continuing IRP studies and has undertaken some interim cleanup measures. Sampling is scheduled to continue into 1991. The description may change as additional information is gathered on the sources and extent of contamination.