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File No. Co5000-03745 <br /> 1" Quarter 1999 Report <br /> Page 2 <br /> American Tunnel Bulkhead <br /> The American Tunnel bulkhead was inspected, gage pressure readings <br /> taken, and fluid samples analyzed for pH, conductivity, and temperature <br /> more frequently than the requirements of Items 3. and 4. in the Rule <br /> Authorization letter. This information is attached. <br /> Site inspections have not revealed any indication that the bulkhead is <br /> performing other than as designed. <br /> Injection Quantities <br /> No injection of alkaline material or water occurred during the 1st quarter of <br /> 1999. <br /> Please contact me if you have any questions on this report. <br /> Sincerely, <br /> - <br /> t-� vl� <br /> Larry Perino <br /> Reclamation Manager <br /> cc: Sarah Johnson, CDPHE <br /> Wally Erickson, DMG <br /> Allen Sorenson, DMG <br />