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CT"&gkAI recluucr lir Page 7 <br /> ' 34 Quarter 2005 Groundwater Monitoring Report <br /> Project No 507 2 <br /> October 31,2005 <br /> ' borings to determine the presence of sand/silt layers in the core contaminant area SJC <br /> PHS/EHD issued an April 15, 2005 correspondence that requested additional <br /> ' information and denied approval of the work plan We submitted a May 16, 2005 work <br /> plan addendum to SJC PHS/EHD addressing their concerns and have received approval <br /> to proceed <br /> • As outlined in the Executive Summary above, the RWQCB must approve any infection <br /> work that could affect groundwater quality GTI submitted our August 8, 2003 "Ozone <br /> ' Sparging SECOR Benchscale Test' work plan for RWQCB consideration The RWQCB <br /> responded in a September 8, 2005 letter requesting additional information GTI <br /> submitted an October 25, 2005 work plan addendum addressing the RWQCB and we are <br /> currently awaiting a response <br /> ' 4.0 LINUTATIONS <br /> This report was prepared in accordance with the generally accepted standard of care and <br /> ' practice in effect at the time Services were rendered It should be recognized that definition <br /> and evaluation of environmental conditions is an inexact science and that the state or practice <br /> of environmental geology/hydrology is changing and evolving and that standards existing at <br /> the present time may change as knowledge increases and the state of the practice continues to <br /> improve Further, that differing subsurface soil characteristics can be experienced within a <br /> small distance and therefore cannot be known in an absolute sense All conclusions and <br /> ' recommendations are based on the available data and information. <br /> The tasks proposed and completed during this project were reviewed and approved by the <br /> ' local regulatory agency for compliance with the law No warranty, expressed or implied, is <br /> made <br /> 1 <br /> 1 <br />