Laserfiche WebLink
r <br /> CVvATC <br /> A S S O C I A T E S I N C <br /> Isoconcentration map depicting MTBE concentrations in the groundwater samples collected during <br /> the second quarter 2004 is shown on Figure 4 <br /> GEOTRACKER DATA UPLOAD <br /> The depth to water data was submitted electronically to the State Water Resources Control Board <br /> (SWRCB) Geotracker database (confirmation number 9500991642) and the laboratory data was also <br /> submitted electronically to the SWRCB Geotracker database (confirmation number 9920294940) <br /> Documentation of the data submittal is contained in Attachment 3 <br /> CONCLUSIONS <br /> Groundwater flow direction and gradient are consistent with previous sampling events Water table <br /> elevations have Increased since the January 2004 monitoring event The laboratory analytical results <br /> of the groundwater samples collected from MW 1, MW2, MW3, and MW4 are generally similar the <br /> results of the groundwater samples collected from these wells in January 2004 The laboratory <br /> analytical results of the groundwater samples collected from MW5, MW6, and MW7 generally <br /> Indicate reduced concentrations of detected constituents with respect to the samples collected from <br /> these wells in January 2004 <br /> RECOMMENDATIONS <br /> • Based on the results of the second quarter 2004 monitoring event, we recommend continued <br /> quarterly groundwater monitoring The next quarterly sampling event is scheduled for July 2004 <br /> Please contact our office at (209) 579-2221 if you have any questions or comments <br /> Respectfully submitted, <br /> ATC Associates Inc <br /> Todd Haffner <br /> Project Geologist <br /> z <br /> - �� <br /> Jeanne Hornsey, <br /> CA Registered Civil Engineer No 47410 t <br /> cc Mr Robert Eggiman x• # •' <br /> Jim Barton,RWQCB <br /> sIenvtronmental1224931Reportsl2QR-04 doe 4 <br />