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GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escalon,California 95320.1927 <br /> Telephone:(209)8389888 <br /> Facsttni[et(209)8389883 <br /> May 17,2010 <br /> Mr.Michael Infuma <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton,CA 952Q2gie-O 6 po ttlaa <br /> Subject: Groundwater Monitoring Well Destruction Workplan Addendum <br /> Valley Pacific Petroleum Services,Inc. (Woolsey Oil,Inc.)Cardlock Facility <br /> 1501 W. Charter Way, Stockton,CA(Site Code 508175) <br /> Dear Mr. Infuma: <br /> On April 20, 2010, Ground Zero submitted the Groundwater Monitoring Well Destruction <br /> Workplan (Workplan), which San Joaquin County Environmental Health Department (EHD) <br /> approved with comments in a letter dated April 28, 2010 (EHD Letter). Four monitoring wells <br /> were destroyed on May 13, 2010. The drill rig could not operate under the canopy covering <br /> MW3. Ground Zero requests modifying the Workplan to use a small geoprobe-type drill rig <br /> capable of drilling out the well with 8-inch diameter augers. <br /> The boring will be grouted to near-surface using trimie pipe and the displaced water and drill <br /> cuttings will be stored in DOT 55-gallon drums pending disposal. The top of the boring will be <br /> finished with cement to match existing surface conditions. Ground Zero will adhere to the other <br /> elements of the Workplan and to the comments and conditions in the EHD Letter. <br /> A new well permit application and fee is attached. Please feel free to contact the undersigned at <br /> (209) 838-9888 if you have any questions or comments regarding this submittal. <br /> S� FO Q <br /> Respectfully, 5 0 A Gl <br /> GroLyui7xro Analysis,Inc. a��sicPRS <br /> � a <br /> Eric L. Price �' �p,5414 <br /> Professional Geologist No. 8414 <br /> Registered Environmental Assessor I No. 8242 SOF CA��� <br /> Attachments <br /> cc: Mr.Nathan Crum,Valley Pacific Petroleum.Services,Inc. <br /> Ms.Karen Collins,Environmental Closures, Inc. <br /> Mr.James L.L.Barton,RWQCB <br /> G:\GROUNDZE\WOOLSEY.CH71Repocts\Wor}.-plans\Well Destruction WP Addendum 100517.doc <br />