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SEPTEMBER 1992 <br /> QUARTERLY STATUS REPORT <br /> GREYHOUND TERMINAL <br /> STOCKTON, CALIFORNIA <br /> 'a&jo yr 12f.z <br /> • Status of investigation and cleanup activities; <br /> On May 13, 1991, the entire fueling system at the facility, consisting of one <br /> 12,000 gallon diesel UST and associated piping, was removed and all fueling <br /> activities were discontinued (Appendix B, June 1992 Quarterly Status Report) <br /> A preliminary site investigation was completed by Engineering-Science, Inc <br /> (ES) in October 1991 The Preliminary Site Investigation report was submitted <br /> ,to the Environmental Health Division of the San Joaquin County Department of <br /> Public Health Services (EHD) and Regional Water Quality Control Board <br /> (RWQCB) personnel on November 27, 1991 (Appendix C, June 1992 Quarterly <br /> Status Report) <br /> A groundwater monitoring program consisting of monthly observations of <br /> groundwater levels and pertinent observations of the monitoring wells, and <br /> quarterly groundwater sampling and reporting, was established by Greyhound <br /> Lines, Inc (GLI) in June 1992 The purpose of the groundwater monitoring <br /> program is to determine if groundwater has been impacted at the facility <br /> Monthly groundwater monitoring reports and the June Quarterly Status Report <br /> were previously' submitted to the EHD and RWQCB The program was <br /> accepted by EHD in a letter dated September 29, 1992 <br /> • Proposed continuing or next phase of investigation; <br /> GLI will continue the groundwater monitoring and reporting program for a <br /> period of one year to determine whether groundwater has been impacted at the <br /> site in addition, GLI is currently preparing a work plan to conduct a <br /> supplemental subsurface investigation designed to define the vertical and <br /> horizontal extent of soil contamination at the facility The work plan will be <br /> submitted to the EHD for review and approval before November 6, 1992 <br /> • Method of cleanup proposed or implemented to date; <br /> No cleanup action have been undertaken to date, pending the results of the <br /> groundwater monitoring program and the supplemental subsurface investigation. <br /> R p <br /> C--,v� <br /> R VE D <br /> OCT D s 1992 <br /> • ENVIRONAAEi,,,'TAL HEALTH <br /> PERMI t16Ef?VICES <br /> LMLISY139 311294 REV 3 <br /> 1 <br />