2019-06-28_REVISION - M1977004 ‎(12)‎

• Permit No: M1977004
• IBM Index Class Name: REVISION
• Doc Date: 6/28/2019
• Doc Name: Request For Amendment To Permit
• From: Homestake Mining
• To: DRMS
• Type & Sequence: AM1
• Email Name: DMC
• Email Name: THM
• Media Type: D
• Archive: No

Homestake Mining Company March 01,2019
Climate Data Project No.:0011-284
Monthly Water Equivalent Values(inches)for Sargents Meteorlogical Station
Colorado Climate Center,2019
Year January February March April May June July August September October November December Grand Total
1959 0.5 1.9 0.5 0.7 1.2 0.5 1.0 2.1 2.7 1.5 0.0 0.5 13.2
1960 1.1 4.8 2.5 1 3 0.5 0.6 0.3 0.1 0.2 1.2 0.7 3.5 16.9
1961 0.7 1.9 2.6 2.6 1.6 0.5 1.7 1.2 2.5 3.1 1.6 1.7 21.7
1962 3.7 2.9 0.4 1.5 0.6 0.8 0.7 0.4 1.6 1.2 0.9 0.4 15.0
1963 1.8 0.6 0.3 0.6 0.4 1.6 0.8 3.7 1.5 1.0 1.1 2.5 15.9
1964 2.01 1.61 4.8 1.21 1.0 0.61 2.41 1.6 1.21 0.3 1.4 2.4 20.4
1965 2.6 17 3.4 0.7 0.7 1.3 2.6 4.2 1.21 1.1 2.31 1.7 23.4
1966 0.5 0.8 0.3 1.2 1.5 1.2 0.6 1.7 0.2 0.7 0.8 1.6 11.1
1967 1.5 0.8 0.8 0.9 0.8 1.6 2.0 2.9 1.3 0.6 1.4 3.1 17.5
1968 1.3 1.9 0.8 1.4 05 00 2.6 2.7 1.3 0.8 1.2 1.8 16.1
1969 2.8 1.3 0.8 0.1 08 3.6 2.5 1.2 1.9 6.6 0.9 25 24.9
1970 1.5 0.9 1.7 1.3 04 2.0 2.6 3.3 1.6 2.3 1.8 0.4 19.6
1971 0.31 2.51 1.3 1.11 0.3 0.01 2.21 4.4 0.7 1.3 1.8 1.9 17.7
1972 1.4 0.4 2.3 0.41 0.5 1.8 0.91 0.6 2.31 1.7 2.61 2.7 17.4
1973 1.5 0.6 1.4 1.7 1.8 1.0 2.1 2.0 0.51 02 0.3 6.9 19.9
1974 2.7 2.1 0.6 09 0.0 0.3 2.5 1.2 0.6 1.4 2.4 2.1 16.9
1975 4.4 3.0 2.6 16 0.1 0.7 1.0 1.4 0.5 0.7 2.8 0.6 19.3
1976 1.4 2.5 1.3 2.8 1.8 0.9 1.1 3 3.6 0.3 0.0 0.0 18.7
1977 0.9 2.6 0.4 0.9 0.2 0.7 2.3 1.9 1.7 1.2 2.0 3.4 18.1
1978
1979 11.4 1.9 4.4 3.21 2.0 0.81 0.71 2.0 1.3 2.1 5.8 0.8 36.4
1980 6.2 4.0 2.7 3.0 1.1 0.2 0.6 1.1 1.01 1.0 0.71 0.7 22.2
1981 1.6 2.0 3.1 0.8 2.1 1.0 2.7 2.2 1.5 2.1 05 8.7 28.3
1982 4.7 1.5 2.6 1.3 2.2 0.4 0.9 3.1 2.6 2.0 1.3 0.7 23.4
1983 0.3 4.4 5.4 3.5 2.3 18 2.5 2.5 0.8 0.7 70 12.3 43.5
1984 1.1 3.8 5.6 5.1 1.2 16 1.2 3.1 0.0 5.4 17 1.6 31.4
1985 3.71 1.81 3.0 2.3 2.0 0.7 2.5 02 2.6 0.6 3.5 2.6 25.4
1986 0.9 5.3 1.8 2.91 0.4 2.41 1.21 15 2.2 1.5 3.0 1.1 24.2
1987 2.9 3.8 2.4 1.8 1.7 1.2 0.7 13 0.51 0.8 2.91 1.3 21.0
1988 5.1 1.2 1.2 1.1 1.5 1.5 1.0 1.6 0.7 0.1 2.8 2.7 20.5
1989 3.1 6.4 1.3 2.5 0.7 0.6 1.6 0.9 20 19 0.3 2.7 23.9
1990 2.2 1.4 4.2 4.8 2.5 0.2 2.4 1.2 1.6 0.8 3.4 1.7 26.3
1991 3.3 1.0 6.6 2.0 0.0 1.8 2.8 2.0 1.1 0.8 3.0 0.8 25.2
1992 051 2.71 3.8 1.0 3.3 1.3 1.4 2.9 0.7 0.9 2.8 0.4 22.6
1993
1994 1.9 1.7 0.8 2.6 1.6 0.5 0.4 4.0 2.41 0.6 1.71 0.4 18.4
1995 2.2 2.1 4.4 3.5 5.1 2.3 0.8 1.0 1.1 0.9 1.5 2.4 27.3
1996 7.7 4.1 2.0 1.7 02 1.2 0.2 0.8 2.1 1.4 1.3 5.1 27.8
1997 3.6 2.4 0.5 2.2 28 0.8 2.3 1.7 1.9 2.1 2.5 2.4 25.2
1998 2.1 1.5 3.4 5.0 01 0.0 2.4 1.4 1.9 3.0 1.1 12 23.1
1999 3.2 1.41 1.4 2.7 1.8 0.8 26 2.4 1.1 0.3 01 1.8 19.5
2000 5.0 2.3 3.1 0.91 1.3 1.41 161 1.8 1.3 1.6 11 2.3 2.3.5
2001 2.6 3.5 1.7 1.8 2.4 09 1.6 2.2 Oil 1.1 1.81 1.3 21.1
2002 1.3 1.6 1.5 0.7 03 0.0 0.8 09 2.0 0.5 3.1 1.6 14.2
2003 0.0 4.1 50 1.9 0.9 0.6 2.2 24 2.0 0.4 2.4 1.8 23.8
2004 3.7 4.0 08 3.5 0.2 0.7 12 0.4 0.8 2.2 2.3 1.7 21.2
2005 2.1 2.2 2.2 3.5 0.1 1.1 1.0 1.7 1.3 0.8 1.8 5.0 22.7
2006 3.81 0.8 2.2 1.8 0.5 0.5 3.4 1.8 0.0 2.5 2.0 2.41 21.7
2007 20 2.5 1.2 3.11 2.1 0.51 3.01 2.4 1.0 2.1 0.5 8.2 28.6
2008 5.2 3.7 3.0 1.8 1.1 0.6 1.7 1.5 0.21 1.0 1.0 4.4 25.2
2009 2.1 2.0 2.6 3.3 2.0 1.2 1.0 0.3 0.9 2.2 0.9 1.8 20.1
2010 1.5 1.7 2.3 2.3 0.3 0.3 4.4 1.1 0.8 2.2 2.4 2.6 22.0
2011 2.2 3.3 2.7 2.8 0.7 0.2 1.2 1.1 0.8 1.1 1.3 1.1 18.6
2012 2.1 2.41 03 0.0 0.4 0.1 21 0.6 1.6 0.3 0.8 3.7 14.4
2013 2.0 3.0 2.7 2.8 1.5 0.1 1.1 1.0 37 1 1 3.0 1.7 23.8
2014 4.3 3.6 1.4 251 1.2 0.1 1.8 1.4 2.7 0.7 3.8 4.6 28.0
2015 0.8 1.8 1.0 22 4.3 1.4 1.4 1.6 0.6 1.6 2.0 46 23.2
2016 4.1 1.4 1.6 3.6 1.8 0.8 0.8 2.6 0.8 0.3 1.4 3.5 22.6
2017 8.1 3.1 0.8 2.0 1.6 0.0 2.8 1.6 1.3 0.7 1.6 0.8 24.3
2018 2.2 3.3 0.4 1.8 0.4 0.8 1.2 1.5 1.0 1.5 2 6 1.2 17.9
Grand Total 155.5 139.2 125.9 117.9 72.1 52.2 96.5 104.0 78.4 80.1 309.0 144.81 1275.7
Average 1 2.61 2.41 2.21 2.0 1.31 0.91 171 1.81 1.41 1.41 1.91 2.6 22.0
Maximum 1 11.41 6.41 6.61 5.11 5.11 3.61 4.41 4.41 3.71 6 61 7.01 12.31 43.5
Minimum 1 0.01 0.41 0.31 0.01 0.01 0.01 0.21 0.11 0.01 0.11 0.01 0.01 11.1
Note:The years of 1978 and 1993 had several months in a row with 0 values reported This is likely do to missing data.Therefore,all data from these two
years was removed and not included in the analysis
Climate Data Project Memorandum.docx BGC ENGINEERING INC.