Laserfiche WebLink
• Silica gel cleanup was employed during the TPH-D analyses The laboratory <br /> did not qualify the TPH-D results with the note that the compounds <br /> identified as TPH-D did not exhibit a typical diesel pattern, as it had done <br /> in the past <br /> The TPH-D concentrations in monitoring wells MW-6, MW-8 though <br /> MW-13, MW-16 through MW-18, and recovery wells RW-1, RW-3 and <br /> RW-4 exceeded the Water Quality Objectives (WQOs) as listed in RWQCB <br /> Cleanup and Abatement Order #R5-2003-0713 The TPH-G <br /> concentrations in MW-5, MW-8, MW-12, MW-13, MW-17, MW-19 and <br /> RW-1 through RW-3 exceeded WQOs MTBE concentrations in monitoring <br /> wells MW-13 and MW-14, and TBA concentrations in MW-5, MW-11, MW- <br /> 13, MW-14 and MW-19 and recovery wells RW-2 and RW-3 exceeded <br /> WQOs Additionally, the total xylenes concentrations in RW-1 exceeded its <br /> WQO <br /> 6 . 0 RECOMMENDATIONS <br /> ASE recommends the following <br /> 0 • Continued groundwater monitoring of the site wells as prescribed in t h e <br /> RWQCB sampling frequency document The next quarterly event is <br /> scheduled for June 2004 <br /> • Continued sampling, operation and maintenance of the domestic wells <br /> and treatment systems <br /> • Installation of off-site monitoring wells as required by RWQCB Cleanup <br /> and Abatement Order #R5-2003-0713 once funding becomes available <br /> 7.0 REPORT LIMITATIONS <br /> The results presented in this report represent the conditions at the time of <br /> the groundwater sampling, at the specific locations where the groundwater <br /> samples were collected, and for the specific parameters analyzed by the <br /> laboratory It does not fully characterize the site for contamination <br /> resulting from sources other than the former underground storage tanks <br /> and associated plumbing at the site, or for parameters not analyzed by t h e <br /> laboratory All of the laboratory work cited in this report was prepared <br /> under the direction of independent CAL-DHS certified laboratory The <br /> independent laboratory is solely responsible for the contents and <br /> . conclusions of the chemical analysis data <br /> Frank's One Stop Quarterly Report — March 2004 Sampling <br /> -4- <br />