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California Reg•al Water Quality Control Board <br /> Central Valley Region <br /> Robert Schneider,Chair <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swreb.ca.gov/mgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 8Z Z Wd 01 gnu io, <br /> 9 August 2001 <br /> Mr. Daniel Decker <br /> ContiGroup Companies, Inc. <br /> 277 Park Avenue <br /> New York,NY 10172 <br /> REVISED PRE-REMEDIATION TESTING WORK PLAN APPROVAL, CONTIGROUP <br /> COMPANIES, INC.,9504 S. HARLAN ROAD, FRENCH CAMP, SAN JOAQUIN COUNTY <br /> We have reviewed the 3 August 2001 Revised Pre-Remediation Testing Work Plan (Revised Work Plan) <br /> submitted by Haley&Aldrich, hie. on behalf of Huff&Huff, Inc. for the ContiGroup Companies, Inc. <br /> French Camp Grain Elevator facility. The Revised Work Plan modified the proposed pumping tests by <br /> including groundwater level measurements in all site monitoring wells before, during and after the pump <br /> tests. Natural attenuation parameters were expanded from two to five samples collected within each <br /> water-bearing zone and from within and outside of the plume. The Revised Work Plan also includes <br /> hydropunch samples southwest and southeast of monitoring well MW-2A. <br /> The Revised Work Plan is hereby approved on the condition that a figure is provided by 24 August 2001 <br /> showing the proposed locations of the hydropunch samples near MW-2A. By 16 November 2001, we <br /> request you submit an interim remedial action plan (IRAP) that includes the results and findings of the <br /> pre-remediation testing along with a schedule to implement the IRAP. Please notify me a minimum of <br /> 72 hours prior to initiation of field work so that I may be present to collect split samples. If you have <br /> any questions, you may contact me at (916) 255-3119 or by email at lewisd ,rb5s.swrcb.ca.gov. <br /> 112JCCC Xz" <br /> DEVRA LEWIS <br /> Environmental Specialist II <br /> cc: Mr. Jeff Wong, San Joaquin County Health Department, Stockton <br /> Ms. Linda Huff, Huff&Huff, LaGrange, Illinois <br /> Mr. Joe Weidmann, Haley&Aldrich, Inc., San Diego <br /> California Environmental Protection Agency <br /> pia Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at http://www.swrcb.ca.gov/mgcb5 <br />