Laserfiche WebLink
Groundwater Analytical Results <br /> TPI-Ig was detected in samples collected from wells MW-14, VM-1 and VM-2 at concentrations of <br /> 740, 220 and 3,900 gg/l, respectively TPHd was detected in the groundwater samples collected from <br /> wells MW-11, MW-19, MW-25 and VM-2 at concentrations of 1,100, 60, 50 and 850 gg/l, <br /> respectively Benzene was detected in the groundwater samples collected from wells MW-14, VM-1 <br /> and VM-2 at concentrations of 210, 44 and 1,500 gg/l, respectively Toluene was detected in wells <br /> MW-14 and VM-2 at concentrations of 18 and 15 gg/l, respectively Ethylbenzene and total xylenes <br />' were detected in wells MW-14, VM-1 and VM-2 at concentrations ranging from 6 5 µg/l (VM-1 -total <br /> xylenes) to 220 ggll (VM-2 - ethylbenzene) FOCs were not detected above their respective laboratory <br /> method detection limits in each of the groundwater samples TPHg, TPI-Id and benzene concentrations <br /> for the Second Quarter - 2003 monitoring event are depicted on Figure 3, Petroleum Hydrocarbons in <br /> 1 Groundwater- June 2003 <br /> CONCLUSIONS AND (RECOMMENDATIONS <br /> 1 The highest concentrations of dissolved phase petroleum hydrocarbons appear to be limited to the <br /> immediate vicinity of the former UST excavation area (monitoring wells MW-14, VM-1 and VM-2) <br /> ' The next quarterly monitoring event is scheduled for September 2003 <br /> If there are any questions concerning the contents of this report, or if Geocon may be of further <br /> service, please contact the undersigned at your convenience <br /> Sincerely, <br /> GEOCON CONSULTANTS,INC., r 11 ^ <br /> °Gd <Q <br /> ttp 1538 U rQ <br /> ' j GEFtTtiF4�fl "1 <br /> 5anager <br /> , , CEG �SGy� R4NG Gemma G Reblando <br /> rod \ GEOL0ti5T ; Staff Geologist <br /> GGR JEJ res <br /> ' (5) Addressee <br /> Attachments Figure 1, Vicinity Map <br /> Figure 2, Groundwater Elevation Map -June 2003 <br /> Figure 3, Petroleum Hydrocarbons to Groundwater-June 2003 <br /> Table 1, Summary of Groundwater Elevation and Analytical Data <br /> Appendix A, Summary of Historical Groundwater Analytical Data <br /> Appendix B,Monitoring Well Sampling Data Sheets <br /> Appendix C, Laboratory Reports and Chain of Custody Records <br /> Project No S8475-06-24F -3- July 18,2003 <br />