2019-12-13_REVISION - M1980244 (61)

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NEWMONT GOLDCORR 1 CLIMATE The climate at the Cripple Creek and Victor Gold Mine is characterized by a semi-arid, high mountain environment with relatively short summers and longer, but moderate winters. Climatological data are available from four stations: a historic station referred to as the Victor station with a data record from February 1966 through February 1976, a station established by Cripple Creek and Victor Gold Mine Company Inc. (CC&V) in the vicinity of Bateman Creek with a data record since 1994, the Rigi station with a data record since 1999, and a seasonal rain gauge located in Grassy Valley that collects precipitation data during the warmer months. Gaps within the climatic data have been filled using climate records from the Western Regional Climate Center. The average yearly precipitation, including snowfall, is roughly 19 inches. The maximum mean monthly precipitation is 4.02 inches and occurs in the month of July. The minimum mean monthly precipitation is 0.47 inches and occurs during the month of November. The average annual lake evaporation is estimated to be 44.3 inches. A maximum mean monthly lake evaporation of 6.54 inches is expected in June, and a minimum mean monthly lake evaporation of 2.08 inches is expected in December. The average daily maximum temperatures at the Victor station ranged from a high of 740F in July to a low of 34°F in December and January for the period of record. The average daily minimum temperature ranged from a high of 470F in July to a low of 50F in January. A detailed look at temperature and precipitation data was performed as part of Mine Life Extension 2 (MLE2) - Amendment 10 permit, as part of the water balance design for the Valley Leach Facility 2 (VLF2) and Valley Leach Facility 1 (VLF1). These data may be found in the MLE - Amendment 9 permit and in the MLE2 - Amendment 10 permit. In addition, a water balance was updated for the VLF2 Phase 3 design as part of this Amendment 13 application, a copy of which is included in Appendix 1 Wind direction is predominantly from the northwest. The second most dominant wind direction is from the southwest. 2 REFERENCES Cripple Creek &Victor Gold Mining Company, Cresson Project Mine Life Extension, Amendment 9 to the MLRB Permit No. M-1980-244, Volumes I —VII, 2008. Cripple Creek & Victor Gold Mining Company, Cresson Project Mine Life Extension 2, Amendment 10 to the MLRB Permit No M-1980-244, Volumes I —VII, February 2012. Cripple Creek&Victor Gold Mining Company Exhibit K Cresson Project Amendment 13 1