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1 <br /> Mr Michael Infurna <br />' Page 6 of 6 <br /> • to be located at the approximate lateral limit of dissolved contamination The presence of <br />' petroleum hydrocarbons and 1,2 DCA in well MW6 suggests that the plume of contamination <br /> may have been drawn to the west by pumping of the Frontier Motel well <br />' • The base of groundwater contamination appears to be undefined Elevated levels of petroleum <br /> hydrocarbons were found in well MW1D (TD=100 feet bgs) The contaminant concentrations <br /> detected in well MW1D were approximately an order of magnitude lower than what has <br />' historically been reported in well MW1, which is completed at a shallower depth 1,2 DCA was <br /> not detected in well MWID <br />' • In addition to the water supply wells previously identified via public records, five additional <br /> water supply wells were physically located within 2,000 feet of the subject site The supply <br /> well at the Frontier Motel (2639 N Wilson Way) is impacted by low levels of 1,2 DCA The <br />' two supply wells located at 2619 N Wilson Way appear to have the potential to be impacted <br /> The other identified supply wells do not appear to have a significant potential to be affected by <br /> contamination originating from either site This is based on distance and direction from source <br />' areas and the proximity to unaffected monitoring wells <br /> 4.2 Recommendations <br />' Ground Zero recommends sampling the domestic water wells located at 2619 N Wilson Way, south of <br /> well MW5 in order to determine if 1,2 DCA or other petroleum fuel-related contaminants are present <br /> IPlease contact Ground Zero at your earliest convenience if you have any questions or comments <br /> regarding this report <br /> Respectfully, <br /> Gro Zero y is, Inc <br /> Se y, O�, <br /> I Staff Geologist J moi`' <br /> GREGORY P. <br /> STA17L <br /> -� <br /> No- 5023 <br /> Gregory P Stahl, RG 5023 <br /> CA Certified Hydrogeologist No 264 OF CAL������ <br /> Attachments <br /> cc Mr and Mrs John Ferratolo <br /> I Mr Jeff Greenberg, Esq <br /> Mr James L L Barton, CA Regional Water Quality Control Board <br /> Ms Marla Nahorn, Environmental Closures <br /> IMr Steve Woodhull, Blaes Environmental <br /> I <br /> 1\GZA_rS\VOL_11DATAIGROLTNDZEIHARRYSIReportslWell Report2 doe <br />