Laserfiche WebLink
Final Release LLNL Site 300 (USDOE) <br /> these homes for washing, bathing, cleaning, etc. Twelve of the 14 homes are situated along Tesla <br /> Road in Alameda County—upgradient from all confirmed groundwater plumes on Site 300. The <br /> other two residences are located on a small tract of land owned by CSVRA that lies on the same <br /> side of Corral Hollow Road as Site 300. Wells located in this area also serve as the sole water <br /> source for visitors to CSVRA. These homes are downgradient from contaminant plumes <br /> originating from the Pit 6 OU(OU-3). These plumes are not predicted to go off-site at levels <br /> above the MCLS. The groundwater is filtered and chlorinated to control bacteria before use <br /> (Dana Jones,Acting District Director, Carnegie State Vehicle Recreation Area,personal <br /> communication,August 26, 2003). There have been no anthropogenic contaminants detected <br /> above comparison values at any of the wells on CSVRA property. <br /> en • .. . �, <br /> in <br /> 1991 1 <br /> •� • O ' <br /> O <br /> % o o <br /> S t <br /> ,`♦ R ' ♦`� 7 R o <br /> U I N V <br /> of <br /> d <br /> 19 M 1 U <br /> O y l•� s`s <br /> N ►W Scale:meters N v <br /> � W <br /> I � <br /> 0 150 300 _ <br /> I _ � <br /> in Spring 2002 <br /> Imo ' <br /> V <br /> • C ,: Go <br /> - - <br /> 21, <br /> -- -ML— <br /> - <br /> Figure 5:Successful Reduction of the TCE Plume at the GSA of Site 300 <br /> Current Exposure <br /> Currently, off-site residents are not being exposed to contaminated groundwater originating <br /> from Site 300. Off-site contamination has only occurred in two locations at Site 300; both are in <br /> the GSA (OU-1). The eastern GSA plume has been treated to levels below drinking water <br /> standards off-site (Figure 5). Figure 6 shows VOC concentrations for the central GSA plume and <br /> the proximity of water supply wells. There are no completed pathways for current exposures <br /> because a completed pathway implies that a human is currently being exposed to contaminants <br /> from Site 300. No human is currently being exposed to off-site contaminated groundwater from <br /> 15 <br />