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tS-ZU "RUG Z '93 09:47AM D11 &"ASSOCIATES N 9161.96320164 P002 P.2v2 <br /> STATE OF CALIFORNIA—ENVIRONMENTAL PROTECTION AGENCY PETE WILSON,Gftenw <br /> MPARTMENT OF TOXIC SUBSTANCES CONTROL <br /> REGION I <br /> 10151 CROYDON WAY,SUITE 3 <br /> SACRAMENTO.CA 95837-2106 <br /> (91fi) 255-3545 <br /> August 17, 7993 <br /> Mr. Peter T. Quinlan <br /> Dudek & Associates, INC. <br /> 605 Third Street <br /> Encinitas, California 92924 <br /> PROPOSED METHOD OF DECOM42SSIONING MONITOR WELL KS--15, <br /> K"RNEY•-KIRF FACILITY, STOCKTON, CALIFORNIA <br /> Dear Mr. Quinlan: <br /> The Department of Toxic Substances Control (DTSC) staff has <br /> reviewed the subject letter and concurs with the proposed method <br /> of decommissioning Monitor Well KS-15. However, when mixing the <br /> grout, DISC technical staff prefers that you add 6 gallons of <br /> water for each sack of cement. <br /> S also received and reviewed your Groundwater Modeling <br /> Re}zg-rt, Xearne3= F Facility. July 23i 1993, and have asked our <br /> technical staff for additional review and co111meTlt. <br /> If you have any questions please contact me at <br /> (91.6) 2553593 . <br /> Sincerely, <br /> Douglas P. O'Neal <br /> Waste Management Engineer <br /> Facility Permitting Branch <br /> FmW en MplIMPYt <br />