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1 <br /> 7.0 WELL ABANDONMENT <br /> As soon as practical following PHS/EHD approval of site closure, all six <br />' monitoring wells at former tank sites 1 and 2 will be abandoned according <br /> to state and county requirements California state requirements for the <br /> destruction of monitoring wells are described in the following documents <br />' • California Well Standards Bulletin 74-90, published by the California <br /> Department of Water Resources in June 1991, and <br />' + Mont toring Well Design and Construction for Hydrogeologic <br /> Characterization - Guidance Manual for Ground Water Investigahons <br />' published in July 1995 by Cal-EPA <br /> Appropriate permits will be obtained prior to abandonment PHS/EHD <br />' will be notified of the exact schedule 1 week prior to field activities <br /> I <br /> i <br /> i <br /> I <br /> I <br /> I <br /> ERM 26 HEINZ USA-3374 60-3/27/00 <br />