EPS surpasses 10,000 samples
Wednesday, Apr 9, 2014 1:23 am
EPS surpasses 10,000 samples
Although groundwater is not being used for domestic purposes, some community members in the neighborhood located to the southwest of BAFB have expressed concern about hazardous materials detected in groundwater in the vicinity of BAFB (6,7). As a part of the ongoing base wide environmental program, groundwater samples are collected every six months. These samples are analyzed for a wide spectrum of organic and inorganic contaminants (1,8). A number of VOCs have been detected in groundwater in the vicinity of the FPTA2.

"Soil, Soil Gas, and groundwater analyzed for parts per billion of VOC's"

The Department of Toxic Substances Control (DTSC) is proposing a cleanup plan for a 3.5-acre parcel of land known as the LaVista, LLC Site (Site). During a recent investigation, contamination was found in the groundwater, soil and soil gas at the Site. Cleanup of the property will allow for possible redevelopment into residential property.

EPS was contracted to perform soil gas analyses collected through a Membrane Interface Probe (MIP). The MIP rig was utilized to determine the extent of contamination, both vertically and horizontally in a residential neighborhood. As the MIP pushed, samples were collected and analyzed over 5 foot intervals. Full scan GC/MS analyses (TO-15) were performed, providing near real-time, definitive results down to single digit parts per billion (ppbv). In addition, due to accessibility issues, there was a fair amount of downtime. The GC/MS was utilized during this downtime to provide groundwater analyses to better understand the extent, if any, of the contamination in the groundwater.