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7-Eleven Store#14117 - 2- 4 October 2044 <br /> 2725 Country Club Blvd, Stockton <br /> • During the Pilot Study phase,groundwater sampling and analyses will be conducted immediately before <br /> each oxygen infection, and at intervals of one and 2 hours afterwards on each day of batch oxygen <br /> infection, in order to validate all contarnmant(s) analyses and proposed decay rates,if applicable If a <br /> BST is not required prior to the pilot Study, then analyze at least once before and after each oxygen <br /> infection <br /> e Install a data logger in MW-1 to record changes in dissolved oxygen,pH,specific conductance,and <br /> temperature during the Pilot Study The test data will be helpful to determine the effectiveness of oxygen <br /> infection <br /> Please procure the appropriate drilling permit and give San Joaquin County Environmental Health Department <br /> and myself at least 3 working days notice prior to commencement of fieldwork <br /> You may call me at(916)464-4615 for questions or additional information <br /> —/.,fA;4 I <br /> JAMES L BARTON,R G <br /> Engineering Geologist <br /> cc Mr Mark Owens,UST Cleanup Fund, SWRCB, Sacramento <br /> Mr Mike Infurna, San Joaquin County Environmental Health Division, Stockton <br /> . Mr Jaff Aucherlonie and Mr Daniel Davis,SECOR International Inc,Rancho Cordova <br />