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f' <br /> Quarterly Groundwater Monitoring Program <br /> Quarterly groundwater monitoring and sampling has resumed and.will continue to be performed at <br /> the site following installation of MW7 and MW8 until site closure is granted. Groundwater samples <br /> will be collected from MW1 through MW8 in the manner previously described and analyzed for the <br /> constituents mentioned above. <br /> Report Preparation <br /> i Upon completion of the groundwater monitoring well installation and sampling activities, a report <br /> j will be prepared for submittal to the EHD. ATC anticipates the xesults of the additional investigation <br /> activities and the results of the next quarterly groundwater monitoringevent can be combined in one <br /> report. Groundwater:monitoring reports for subsequent quarterly groundwater monitoring events will <br /> be submitted under separate cover.The work described in,this-workplan will be performed under the <br /> direction of a California Registered Professional Engineer..All work will be performed in accordance <br /> with ATC's Site Safety Plan(SSP).and Quality'Control/Quality Assurance Plan on.file with the EHD. <br /> Protected Schedule~ <br /> j Once approval of this workplan has been received, ATC will schedule drilling activities. ATC will <br /> notify the EHD at least 48 hours prior to beginning any field activities. A report describing the <br /> results of the additional investigation activities-and the 'results of the next quarterly groundwater <br /> t monitoring event will be submitted to EHD approximately four to five weeks after the completion of <br /> field.activities. <br /> If you have any questions or require additional information regarding this workplan;please contact us <br /> at(209)579-2221. <br /> i <br /> 1 Respectfully submitted, <br /> ATC Associates Inc: <br /> A�� I <br /> Todd Hafner = ff-i <br /> Project Geologist <br /> IV I0 <br /> -Jeanne Homsey,P.E. s <br /> Registered Engineer-No. C47410 '` <br /> jg+ <br /> Attachments <br /> cc: Dr.A.R. Glover <br /> �•J Mr. Jim Barton, CA Regional Water Quality Control Board;Central Valley Region <br /> s:\17861\reportAwellinstApIn.doc 4 <br /> I <br />