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• <br />• <br />r? <br />Whirlwind Mine <br />30100 5110 Road <br />Gateway, Colorado 81522 <br />Materials Containment Plan <br />Revision 2 <br />UNTREATED/PARTIALLY TREATED MINE WATER <br />(continued) <br />Maintenance Requirements <br />• Inspect tanks and lines for cracks or punctures, repair or remove defective tanks and <br />lines ' <br />• Do not overfill tanks <br />• Control source of spill or''leak, if possible. <br />• Small Spills: Within Trailer, direct spilled water into external 400-gallon tank via <br />trailer sump drain. <br />Outside of Trailer, stop source of the spill and contact Mine <br />Foreman. Source control of spill may require pumping of water into <br />another tank or back into the mine. <br />• Large Spills: Contact Mine Foreman for additional assistance. <br />Chill Nntifiratinn Ranniramante <br />• Immediately contact the Mine Foreman (verbally) <br />• If not available contact General Manager at 303 864-7775 <br />• Reportable quantities: Selenium = 100 pounds <br />Arsenic = 1 pound <br />Radium-226 = 52,000,000 pCi <br />Uranium = 53,000,000 pCi <br />• Reportable quantity exceeds maximum site quantities <br />0 180,000 gallons of untreated mine water is equivalent to: <br />¦ 0.05 pounds of Selenium (calculated based on 35 gg/L) <br />¦ 0.04 pounds of Arsenic (calculated based on 27 µg/L) <br />¦ 190 pCi of Radium-226 (calculated based on 9.7 pCi/L) <br />¦ 15 pCi of Uranium (calculated based on 126.6 pCi/L) <br />o Based on maximum detected levels of these constituents in untreated mine water <br />o No EPA spill notification is required <br />• Spills of any quantity which enter waters of the state must be reported to: <br />o Colorado Department of Public Health and Environment <br />Toll-Free 24-hour Environmental Spill Reporting Line <br />(877) 518-5608 <br />o Bureau of Land Management, Grand Junction Field Office <br />Alan Kraus ii <br />970) 244-3078 <br />• Refer to the Spill Report Appendix A for information to be provided to the above <br />agencies during oral notification <br />• Follow-up written notification will be required by the above agencies and are required <br />to be copied to the BLM.j Instructions for submittal of the written notification will be <br />provided b the a enciesldurin or following oral notification. <br />2 of 2