Laserfiche WebLink
x <br /> ti <br /> Table 1.Monitoring Well Groundwater Data <br /> Monitoring Date Depth to Groundwater Top of Casing Groundwater Comments <br /> Well Number from Top orCasin ft Elevation(ft)* Elevation ft <br /> MW-1 2112109 14.23 57.77 43.54 Sheen on water <br /> 711109 14.91 42.86 None <br /> MW-2 2/12109 14.50 57.98 43.48 Sheen on water <br /> 711/09 15.21 42.77 None <br /> MW-3 2/12/09 14.31 57.31 43.00 None <br /> 7/1109 15.04 42.27 None <br /> MW-4 2112109 14.56 58.48 43.92 None <br /> 711109 15.21 43.27 Oil spill on surface <br /> entered well box,did not <br /> agM to enter well <br /> '-Monitoring well top of casing elevations surveyed to NGVD by City of Tratsy, <br /> 4.0 Results and Discussion <br /> 4.1 Groundwater Monitoring Well Data <br /> TPHG was detected only in MW-1 at 79 Ug/1 (see Figure 2). TPHD was detected at 3,200 and <br /> 1,200 Ug/l in wells MW-1 and MW-3 respectively (see Figure 3). Very low levels of TPHD <br /> were detected in MW-2 and MW-4. BTEX, Ethanol and Methanol were not observed in any <br /> well for this quarter sampling(see Figure 4 and Table 2). <br /> Sheen was not observed in any monitoring well for the July 1,2009 sampling. <br /> 5.0 Conclusions and Recommendations <br /> WRIGHT performed quarterly groundwater monitoring well sampling and chemical analysis for <br /> the Boyd Service Center. TPHG was detected in well MW-1 and TPHD was detected in each <br /> well. BTEX, Ethanol and Methanol were not detected in any well this quarter. Wright will <br /> schedule the next quarterly sampling event with the City. <br /> Quarterly reports of the groundwater monitoring program will be prepared for submittal to the <br /> City and PHS/EHD and RWQCB Region 5, in both hard copy, and electronic format for <br /> submittal to Geotracker. <br /> Page 3 of 7 <br />