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,AL.,R07015 Close Oar moY doAwr,. a, Following regulatory concurrence and documentation of cleanup completion, repur ingfor ran Eastern GSA in the Site-Wide Compliance Monitoring Reports and in fiiture GSA Five YearReviews will be discontinued. The GSA Remedial Design specifies that after concurrence with the regulatory agencies Mat cleanup is complete: The O scent GSA ground water treatment system and influent and discharge piping will be decontemioated, dismantled, and disposed, salvaged, or used at other locations. • The Fasrern GSA wellfield will be decommissioned by no can casing perforation and pressure grouting in accordance with ERD SOP I.]. Wellhead decommissioning will include removal of protective covets, instruments, concrete pads, and upper 2-3 fixl will be filled with low-permsability soil m restore grade. DOEMNSA will decommission the Eastern GSA treatment system and wellfield once regulatory concurrence of cleanup completion and funding toconduct this work is received. As described in Section 8.3. ground water and soil data indicate that remediation at the Eastern GSA has been completed and that residual chemical contaminants do not pose an unacceptable risk to human health or the environment, so no further action is maniacal at the Eastern GSA, However, DOE: will record a notation on the deed to the Site 300 property to provide notification W potential purchasers, lessee, or sublessee that land at the Eastern GSA was used as a disposal con tains buried waste, and was die source of VOC contamination in ground water. Concurrence that mmediation of the Eastern GSA portion of the GSA OD I is complete will he documnted through the signing of the concurrence page by the DOP/NNSA, EPA, MSC, and the R WQCB that will be incorporated into this document after all signatures are obtained. DOE. responses to regulatory comments on the Draft and Draft Final versions of the Eastern GSA Closeout Report are included as Appendix C.