ARCHIVED REPORTS_XR0003586 - Laserfiche WebLink

Home Browse Search

W V l ' 07 November 2005 i AGE-NC Project No 04-1239 ' Page 4 of 4 ' The concentration of benzene in well MW-9 decreased below laboratory detection limits this quarter • The lateral extent of petroleum hydrocarbon contamination is defined to the south by well ' MW-11 and to the southwest by well MW-10 ' SA. RECOMMENDATIONS Based on the findings of the environmental activities recounted in this report, AGE recommends • Continuation of quarterly monitoring events, the next event should take place in fourth ' quarter 2005 • Additional shallow Investigation at the former UST area to monitor the core of the dissolved ' hydrocarbon mass,and additional Investigation down-gradient of well MW-9 to monitor the migration of the dissolved hydrocarbon mass The Installation of two additional shallow ground water monitoring wells Is justified (see Figure 2) I . • Additional Investigation of the vertical hydrocarbon Impact to the site should be completed Installation of vertical ground water monitoring wells within the former UST excavation area ' and down-gradient direction of well MW-9 is justified (see Figure 2) ' 6.0. LIMITATIONS Our professional services were performed using that degree of care and skill ordinarily exercised by ' environmental consultants practicing in this or similar localities The findings were based upon analytical results provided by an independent laboratory Evaluation ofthe hydrogeologic conditions at the site for the purpose of this investigation was made from a limited number of available data ' points(i e ,ground water samples)and subsurface conditions may vary away from these data points No other warranty,expressed or implied,is made as to the professional interpretations,opinions,and recommendations contained in this report I I • IAdvanced GeoEnvironmentel,Inc i