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Engineering Office I Tel: 909-428-44458 <br /> 351 1 North Riverside Avenue <br /> Rialto,California 92377 Fax: 909-349-1992 <br /> MonierLifetile <br /> June 14, 2002 <br /> VIA FACSIMILE <br /> Q <br /> N <br /> Mr. Ross D.Atkinson <br /> Regional Water Quality Control Board- Central Valley Region <br /> 3443 Rouder Road,Suite A o <br /> Sacramento, CA 95827-3003 -v <br /> Subject: Cleanup and Abatement Order No. 5-01-722 Cn <br /> co <br /> MonierLifetile LLC's French Camp and Lathrop Facilities -- <br /> Request for Modification of Vadose Zone Investigation Work Plan <br /> Dear Mr.Atkinson: <br /> Thank you for your time yesterday in discussing our request for changes to the referenced work plan based on the <br /> results of the Initial Groundwater Monitoring Well Installation and Monitoring Report. As discussed, based on the <br /> soil data collected during the groundwater well installations, MonierLifetile is requesting the following changes to <br /> the investigation: <br /> • Three additional borings will be sampled located midway between the existing groundwater wells (See attached <br /> figures) <br /> • Borings will be drilled to 10 feet below ground surface at each site with samples collected at the 0-1', 2.5, 5,and <br /> 10 foot intervals. Samples at the 10'intervals will be run only if the samples from the 5'depth indicate a need. <br /> MonierLifetile is also requesting approval of the noted areas to be used for the Background borings. <br /> We look forward to your response. If you have any questions or wish to discuss this matter further, please contact <br /> me at 678-491-4911. <br /> Respectfully Yours, <br /> MonierLifetile LLC <br /> Sandra L. Glenn,P.E. <br /> Environmental Manager <br /> cc.: Mr.David Irey,Deputy District Attorney,San Joaquin County <br /> Ms.Margaret Lagorio,San Joaquin Environmental Health Department,Stockton <br /> Mr.Norm Klingman/Lathrop <br /> Ms.Linda Conlan/URS <br /> Norm Klingman/French Camp <br /> Jeff Smith/Lathrop <br /> Jeff Pizzagoni/Lathrop <br /> Noel Vila/French Camp <br />