Laserfiche WebLink
CONESTOGA-ROVERS <br /> &ASSOCIATES <br /> 3. Figures depicting lithology(cross'section), treatment system diagrams; <br /> - <br /> ' A geologic cross section is shown -on Figure 4: No permanent treatmentsystems have been <br /> installed at the site:' <br /> - 4. Stockpiled soil remaining on-site or off-site.disposal(quantity); <br /> There is no stockpiled soil'remaining onsite. Approximately 400 cubic yards of excavated soil <br /> was disposed of following UST replacement and oveiexcavation during .1990, as reported m <br /> Delta's November-28,",1990 report. " <br /> S. Monitoring wells remaining on-site,fate; <br /> All site monitoring wells � g y W-1A through MW-3A) will be properly destroyed'once Shell <br /> _ <br /> receives case closure. <br /> 6. Tabulated results of all groundwater elevations.and depths to water; <br /> Tabulated historical depth to groundwater and,,.groundwater elevation data. are.-presented.in <br /> r " <br /># Attachment A. <br /> 7. Tabulated results of all sampling and analyses; - <br /> Tabulated historical `soil data are_presented�in 'Table 2, tabulated grab groundwater data is <br /> presented in Table .3, and tabulated -groundwater:monitoring'analytical data is-presented in <br /> Attachment A. .. T <br /> 8. Concentration contours of contaminants found and those remaining in' soil and <br /> groundwater,.both on-and off-site; <br /> As noted above, soil containing detectable gasoline constituent concentrations was excavated to: <br /> the groundwater table:at the site during the.1990 UST replacement activities.'Based on this, onlyT <br /> soil samples collected after the excavation­are considered io be representative of.contaminants <br /> - remaining in soil at the site. <br /> BTEX concentrations in soil samples.:eoliected during dispenser upgrades.in 2004 were below r <br /> - method reporting limits; so iso-conccntration baps could not be prepared for these constituents:; <br /> 0813 7 <br /> Worldwide Engineering,Environmental,Construction,and IT Services <br />