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11 July 1991 Proposed Plan -3- 26 August 1991 <br /> DDRW, Tracy <br /> Monitor Wells Rationale for Selection <br /> LM-61 Up gradient well from industrial waste ponds but well may b e <br /> impacted from infiltration from ponded waters in the northern <br /> part of site. <br /> LM-3, LM-15 Down gradient wells from industrial waste ponds. <br /> LM-30, LM-40, Cluster site in Area 2. <br /> LM-41, LM-48 or <br /> LM-49, LM-50, <br /> LM-51, LM-52 <br /> LM-66, LM-67, Contaminated cluster well site near leading edge of VOC plume <br /> LM-81 off-site. <br /> 3. It is not necessary to analyze for minerals on all of the wells proposed in the <br /> plan. Minerals only need to be performed on a representative number of wells. The <br /> following wells should be analyzed for minerals. <br /> Monitor Wells <br /> LM-3, LM-15, LM-17, LM-25, LM-42, LM-72, LM-73, LM-76, <br /> Cluster site LM-30, LM-31 , LM-40, LM-48 or Cluster site LM-49, LM-50, LM-51 , LM-52 <br /> Cluster site LM-32, LM-33, LM-34, <br /> Cluster site LM-63, LM-64, LM-65 <br /> Although not specifically discussed in this conference call , Tracy should consider <br /> sampling and analyzing for minerals on the extraction wells for the interim <br /> remedial measure. This information may be particularly useful in the operation and <br /> maintenance of the treatment system. <br /> CKW:cw <br />