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0 • <br /> Caflifurnia Regional Water Quality Control Board <br /> s Central Valley Region = <br /> Steven T.Butler,Chair 0 <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Intemet Address: http://www.swrcb.ca.gov/—rwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> .:"oo":) <br /> 21 June 1999 <br /> Ms. Lisa Tuck <br /> P io;icet Companies, Inc. <br /> 700 Louisiana Street, Suite 4300 <br /> Houston, Texas 77002 <br /> FIRST QUARTER 1999 GROUNDWATER MONITORING AND SAMPLING REPORT,ALL- <br /> PURE CHEMICAL CO., TRACY, SAN JOA Q UIN CO UNTY <br /> I have reviewed the 27 April 1999 First Quarter 1999 Groundwater Monitoring and Sampling Report, <br /> All-Pure Chemical Company Tracy Facility submitted by International Technology Corp. (IT) for All- <br /> Pure Chemical Company. Nitrate and carbon tetrachloride in groundwater beneath the facility exceed <br /> the Federal and State primary maximum contaminant levels (MCLs). Several other parameters exceed <br /> secondary MCLs. Future monitoring and investigation reports will need to include isoconcentration <br /> maps at least for compounds that exceed primary MCLS, which currently include nitrate and carbon <br /> tetrachloride. <br /> If yo,a have any questions, you may contact me at (916) 255-3077. <br /> IH MELLO <br /> te <br /> Engineering Geol st <br /> cc: Mr. Marshall Cloud, ASCW-BE, Sharpe Depot, Lathrop <br /> San Joaquin County Health Department, Stockton <br /> Mr. Jim Smalley, All-Pure Company, Tracy <br /> Mr. Don Bransford, International Technologies Corp., Rancho Cordova <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />