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File No. CO5000-03745 <br /> 1st Quarter 1998 Report <br /> Page 2 <br /> American Tunnel Bulkhead <br /> The American Tunnel bulkhead was inspected, gage pressure readings taken, and fluid samples <br /> analyzed for pH, conductivity, and temperature more frequently than the requirements of Items 3. <br /> and 4. in the Rule Authorization letter. This information is attached. <br /> Site inspections have not revealed any indication that the bulkhead is performing other than as <br /> designed. <br /> Iniection Quantities <br /> No injection of alkaline material or water occurred during the 1 st quarter of 1998. <br /> Please contact me if you have any questions on this report. <br /> Sincerely, <br /> Larry Perino <br /> Reclamation Manager <br /> cc: Sarah Johnson, CDPHE <br /> Wally Erickson, DMG <br /> LP/lf <br />