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I Mohr-Fiy Ranches ' 950 Industrial Drive, Stockton, California August 6, 1996 Site Closure Report page_ 6 ' climatic changes in the Sierras This has resulted in a redonunance of fine arced silts P gt' and clays in the subsurface of the area ' 7.0 Hydrology Cahforiva and Federal Governments have mandated that virtually all groundwater is ' beneficial for current or future use unless it can be demonstrated that no beneficial use is known ' This aquifer is considered to be of beneficial use and as a result, must be protected from contamination Those identified uses include agnculture and industrial, as well as potential use for animal or human consumption I 8.0 Conclusions ' After a complete review of all the data generated during the Investigative and Remedial activities associated with dus site, it is the opinion of WIC' that tins site has been successfully mitigated as the result of I Removal and disposal of the pnmary sources of contamination, and I 2 Removal of the second sources of contamination with n secondary o site bio-remediation of contaminated soils Groundwater monitoring has not detected appreciable contamination during the last four quarterly sampling events (one year) 9.0 Recommendations In the May 30, 1996 Btaremediatton Report, WIF recommended no further action be required at this site and requested site closure from San Joaquin County PHS/EHD It was also requested that Mohr Fry Ranches be allowed on site disposal of treated soil from over excavation activities In a review letter dated July 3, 1996, PHS/EHD concurred with WHF's recommendations (Appendix E) As directed, the monitoring wells have been properly destroyed and this tclosure report prepared On behalf of Mohr-Fry Ranches, WET requests issuance of a final closure letter and removal of the site from the contaminated site list