Laserfiche WebLink
3. Collection of soil samples at 5 foot intervals down to groundwater, including a <br /> sample collected from the capillary fringe zone <br /> 4 Development of the four monitoring wells and collection of water samples <br /> ' 5. Analysis of soil and water samples for total petroleum hydrocarbon products in the <br /> gasoline range (TPH-g) and volatile aromatic compounds including BTEX <br /> 6 Investigation of the City of Lathrop's Department of Pubhc Works files and the <br /> ' California Department of Water Resources files for information on the location and <br /> use of public and private water wells within a 1/2-mile radius of the Langston <br /> ' property <br /> 1 7. Preparation of this report. <br /> In summary, groundwater contamination, acknowledged in the initial Environmental <br /> Assessment Report to have occurred as a result of leakage from an underground gasoline <br /> tank has been quantified. Although the current areal extent of the groundwater <br /> contamination has yet to be adequately identified, the areal and vertical extent of the soil <br />' contamination is well defined, and the direction and velocity of groundwater flow has been <br /> quantified Because of the low hydraulic conductivity of the aquifer and shallow <br />' groundwater gradient, there appears to be no immediate threat of the contaminant plume <br /> migrating off-site. <br />' 3 <br />