2018-02-12_REPORT - M1980244 (2)

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IVE W M O N T Newmont Mining Corporation Cripple Creek&Victor Gold Mine 100 North 3rd Street P 0 Box 191 T 719-689-4029 F 719-689-3254 www.newmont.com SENT CERTIFIED, RETURN RECEIPT REQUESTED 7017 2400 0000 4077 7640 February 8, 2018 Mr. Timothy Cazier, P.E. RECEIVED Environmental Protection Specialist Colorado Department of Natural Resources FEB 1 2 'HI:, Division of Reclamation, Mining and Safety Office of Mined Land Reclamation DIVISION OF RECLAMATION 1313 Sherman Street, Room 215 PINING AND SAFETY Denver, Colorado 80203 Re: Permit No. M-1980-244; Cripple Creek& Victor Gold Mining Company ("CC&V"); Cresson Project-Written notification—Floatation Concentrate Slurry Spill—February 5,2018 Dear Mr. Cazier: In accordance with Rule 8, Section 8.2.3 of the Mineral Rules And Regulations of the Colorado Mined Land Reclamation Board For Hard Rock, Metal, And Designated Mining Operations (Rules), the Cripple Creek and Victor Gold Mining Company(CC&V)hereby provides the Division of Reclamation, Mining and Safety(Division) with a formal report regarding the Concentrate slurry spill which occurred at the Concentrate thickener at the High Grade Mill (HGM). The spill occurred early morning February 5, 2018. The following points address the requirements of Rule 8, section 8.2.3: a. Actions taken to respond to and correct the emergency situation or condition • The spill was observed by the mill control room at approximately 2:00am. The spill occurred while personnel were in the process of cleaning out the secondary containment around the Concentrate Thickener. A hose became detached from a portable diaphragm pump used in the cleanout, resulting in approximately 100 gallons of slurry leaving secondary containment. • A skid steer was used to over excavate the impacted soil. Depth of recovery was approximately 6 inches (see photo 1). Slurry was recovered from the first few inches of soil; the underlying soil was not wet; therefore, CC&V can ensure that all contaminated soil was removed. • Approximately 5 cubic yards of slurry and soil were excavated with a skid steer; the material will be mixed with leach ore at the Load out Bin.