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the temperature remains constant. Once the samples are delivered to the <br /> laboratory, the chain of custody will be signed by the laboratory personnel <br /> indicating that possession of the samples has changed. The soil samples will be <br /> analyzed within the required fourteen-day period following collection. Minimum <br /> soil MDLs are to be . 02 ppm for BTEX and 1.0 ppm for TPH gas and diesel. <br /> In addition, one water sample will be taken from each monitor well. It is <br /> important to note that each sample boring will not be made within three feet of <br /> a previous infiltration/boring well. Sampling protocol will follow that of the <br /> FHS-EHD and CWQCB standards. Furthermore, they will be transported to an <br /> independent laboratory, again, per protocol for specific contaminant analysis. <br /> Analysis will be conducted utilizing EPA methods 601 and 602. Minimum MDLs for <br /> water are to be 0.5 ppb for BTEX and 50 ppb for gas and diesel. The MDL would <br /> be in ug per liter or ppb. <br /> Prior to the independent lab conducting the analysts to prove that the site <br /> has been cleaned to the required standards of the PHS-EHD and CWQCB, a Remedial <br /> Action Report (RAR) will be compiled which will discuss the findings of the <br />' remediation work conducted, conclusions reached and recommendations given and <br /> subsequently submitted to PHS-EHD and CWQCB for review. Once the report is <br /> reviewed and approved by the PHS-EHD and CWQCB, a specific proposal will be <br /> submitted. This proposal will be in the form of a Workplan Addendum (WA) pursuant <br /> to RHS-EHD guidelines. This proposal will be submitted prior to confirmation <br /> samples are obtained and analyzed by a laboratory. The WA will include rationale <br /> for the number and location of borings, samples, depths, etc. The site would not <br /> be considered fully remediated without regulatory approval. <br /> Once the site has been given final closure status the infiltration <br /> borings/wells would be closed according to RHS-EHD and CWQCB protocol. Standard <br /> protocol dictates the borings/wells be closed per bentonite clay. It is possible, <br /> however, that one out of every ten borings be left as permanent monitor wells <br /> for future monitoring purposes. <br /> Additional information may be found in the Appendices regarding the Health <br /> and Safety Plan, Appendix C, Phase Schedule, Appendix D, Contractor/Subcontractor <br /> List, Appendix E, and Parker Environmental Services Summary, Appendix H. <br /> 14 <br />