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<br /> <br />and myself to identify the source of the material causing the <br />sheen. A conversation with one of the surface personnel indicated <br />that the area around the diesel storage tank may have become <br />contaminated with diesel fuel. Earth material around the tank <br />containment appeared to be contaminated, and two oil booms which <br />had put down appeared to have picked up some oil. Flow from this <br />area goes into the sump and then into Pond B. Likewise, the booms <br />that were placed in the sump and Pond B last fall appeared to have <br />picked up some oil and were replaced as described above. The <br />replacement of the booms appears to have eliminated the oil sheen <br />form the discharge. <br />The booms below the culvert on Foidel Creek were checked, and did <br />not exhibit signs of the sheen having migrated to that point. One <br />of the booms was relocated to a better position, and a single boom <br />was placed above the culvert at the railroad crossing below the <br />CYVCC office building. Upon completion of placing the booms no <br />further sheen was observed exiting from discharge point 003. <br />During the week the discharge point and the above locations on <br />Foidel Creek were checked for signs of a visible oil sheen. The <br />booms con*_inue to •.aork as no sheen way observed exiting discharge <br />003 during the week. The booms located above and immediately below <br />the culvert will remain in place for the next few weeks as <br />protection from any residual oil migrating downstream. It does <br />appear that the booms placed at the inlet and outlet of :point 003 <br />have worked effectively in removing any oil that could cause a <br />sheen to appear on Foidel Creek. The discharge point is monitored <br />weekly and this monitoring will determine if any further action is <br />required. <br />The following list of agencies were contacted on March 29, 1993 to <br />advise of the oil sheen exiting discharge point 003: <br />Colorado Dept of Health - Permits and Enforcement Section <br />Colorado Division of Wildlife <br />Routt County Environmental Health Dept. <br />U.S. Bureau of Land Management <br />U.S. Environmental Protection Agency - Water Management <br />Division, Compliance Branch, and <br />National Response Center <br />If there are any questions concerning the above, please contact me <br />at your convenience. <br />Sincerely, . <br />Richard Mi11s <br />Supervisor, Environmental Affairs <br />