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and injection system was then modeled to determine optimum extraction and <br /> injection rates while achieving hydraulic control An extraction and injection system <br /> was designed and presented in Addendum No 1 to the Remedial Action Plan, Black <br /> & Veatch, April 1995 The SJCPHS approved the CAP and addendum and the <br /> ' RWQCB issued a general waste discharge pernut in May 1995 <br /> Additional groundwater data gathered during the lengthy permitting process <br /> ' indicated that the plume was stable and passive bioremedlatron was occurring at the <br /> site. Also during this time, research conducted by a team of scientists from <br /> University of California institutions and Lawrence Livermore National Laboratory <br /> ' for the State Water Resources Control Board recommended that natural attentuation <br /> be the remedial alternative whenever possible In June 1995, the SJCPHS approved <br /> the use of passive bioremediation at the site in place of the active bioremediation <br /> system identified in the CAP Black & Veatch prepared an amendment to the CAP <br /> (Addendum No 2 to the Additional Site Assessment and Remedial Options Report, <br /> Black & Veatch, March 1996) defining passive bioremediation as the preferred <br /> alternative. This amendment was submitted to the SJCPHS in March 1996, <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> ' 96R7 East Bay Municipal Utility District <br /> 40429700 fcr 13 Final Closure Report <br />