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01/03/2008 15:18 2098350 5 2098350675 PAGE 20 <br />Valley Organics, Inc. 8112.000.000 <br />Green Waste Composting Facility December 20, 2007 <br />WORKPLAN ADDENDUM Page 3 <br />4. Groundwater samples will be retrieved with a bailing system comprised of 3/8 -inch -diameter <br />tubing and a stainless steel check ball. <br />5. I'lie depth of sample collection, the depth of relatively stable groundwater surface, sampling <br />time and field water quality parameters will be recorded on the Groundwater Sampling Form <br />presented in the Workplan. <br />6. All groundwater samples will be handled and analyzed as described in the original Workplan. <br />7. All sampling tools will be decontaminated between sampling locations with steam pressure <br />wash. <br />Other Zlydrogeologic Data Gathering Activities <br />A reconnaissance of the area within % mile of the Site will be conducted to map and characterize <br />surface water features such as ditches, lift pumps, basins, creeks, lakes and rivers. <br />REPORTING <br />All Addendum field activities and analytical data, including additional gathered data on <br />surrounding surface and groundwater water features, will be incorporated into the graphics and <br />text of the final report described in the Workplan. <br />We look forward to executing the Workplan and Addendum with you once you have received <br />approval from the RWQCi3. If you have any questions regarding the Addendum, please do not <br />hesitate to contact us. <br />Very truly yours, <br />ENGEO Incorporated. <br />Josef, , T tle ~/ <br />Senior Hydrogeologist Principal <br />Jp�Jb <br />Attachments: Figure Z -- Revised Site Plan <br />Sampling Matrix Table <br />cc, 1 - Lorne Truscott (e-mail only) <br />