Laserfiche WebLink
• Mr Jeffrey Wong <br /> Page 3 <br /> SUMMARY <br /> * Groundwater flow radiated from an apparent groundwater mound near well MW1 <br /> • TPHg, BTEX and 1,2-DCA concentrations were sirrular to those measured during the previous <br /> sampling event <br /> • Concentrations of gasoline oxygenate additives and EDB remained at non-detectable levels in all wells <br /> In well MW3,BTEX was not detected for the second consecutive event, and 1,2-DCA was not detected <br /> for the fifth consecutive event <br /> CONCLUSIONS <br /> Groundwater flow direction at the site continues to exhibit extreme vanabdity This variability and the <br /> apparent mounding near well MWI may be a result of the pumping of nearby water supply wells <br /> Concentrations of dissolved petroleum hydrocarbons and 1,2-DCA in groundwater at the site appear to <br /> be stable or slowly decreasing <br /> The limits of the dissolved hydrocarbon plume have not been defined <br /> The next round of groundwater sampling is scheduled for June 2002 EHD will be provided with at least 48 <br /> hours notice before conducting fieldwork <br /> If you have any questions or comments please contact Ground Zero at your convenience <br /> Respectfully, <br /> ;Sean <br /> o Zero sis,Inc <br /> ` ED GO <br /> ey, �Cy <br /> Staff Geologist ¢ GREGORY P. <br /> GSTAHL <br /> No 5023 <br /> Gregory P Stahl,RG 5023 <br /> CA Certified Hydrogeologist No 264 sf'l <br /> �0F CAtlF�R <br /> Attachments <br /> cc Mr and Mrs John Ferralolo <br /> Mr Marty Hartzell, CA Regional Water Quality Control Board <br /> Ms Marla Nahom,Environmental Closures <br /> \1GZA_FSISYSO1\Data1GROUNDZEILARRYS1Reports11QM2002 doe <br />