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W GealagccalTecknecslac --- - -- -- ------- --_ -_ -_- - ---Page 6--�------ - -- --___..-- <br /> Groundwater Monitoring Report <br /> Project No 425 2 <br /> . May 12,2003 <br /> ' 6 Petroleum hydrocarbon concentrations in the groundwater at the site fluctuate with each <br /> monitoring event The residual contamination in soil, up gradient of MW-2, remains a <br /> 1 significant source of impact to the groundwater plume <br /> 7 The deeper groundwater plume is defined vertically since MW-102 and MW-202 remain <br /> non-detect for contaminants _ <br /> ' 8 The three domestic wells sampled for the event remain non-detect <br /> Recommendations <br /> 1 The following recommendations are made <br /> 1 rhe current quarterly monitoring schedule should be maintained to determine <br /> contaminant trends <br /> ' 2 Drilling and installation of the discretely screened wells as approved by SJC should be <br /> completed ASAP <br /> 40 LIMITATIONS <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 <br /> definition and evaluation of environmental conditions is an inexact science and that the state <br /> or practice of environmental geology/hydrology is changing and evolving and that <br /> standards existing at the present time may change as knowledge increases and the state of <br /> 1 the practice continues to improve Further, that differing subsurface soil characteristics <br /> can be experienced within a small distance and therefore cannot be known in an absolute <br /> sense All conclusions and recommendations are based on the available data and <br /> ' 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, <br /> is made <br /> 1 <br />