2012-08-14_PERMIT FILE - C1996084A ‎(2)‎

• Permit No: C1996084A
• IBM Index Class Name: Permit File
• Doc Date: 8/14/2012
• Section_Exhibit Name: SECTION 2.04 INFORMATION ON ENVIRONMENTAL RESOURCES
• Media Type: D
• Archive: Yes

•
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TABLE 2.04.8-1
LORENCITO CANYON MINE
ESTIMATED CLIMATOLOGY
6,600 Feet Elevation 7,200 feet Elevation
Month Precipitation
(inches) Snow
(inches) Average
Monthly
Temperature
(° F) Precipitation
(inches) Snow
(inches) Average
Monthly
Temperature
(° F)
lAN 0.53 5.6 29.8 0.64 6.1 28.7
FEB 0.60 6.7 32.7 0.71 7.5 31.2
MAR 1.02 10.0 37.9 1.19 11.9 36.0
APR 1.19 6.9 46.5 1.34 8.4 44.3
MAY 1.96 2.0 55.5 2.03 2.4 53.1
JUN 1.45 0.1 64.9 1.44 0.1 62.2
JUL 2.43 0.0 69.8 2.71 0.0 67.1
AUG 2.27 0.0 67.9 2.46 0.0 65.3
SEP 1.17 0.3 61.0 1.25 0.3 58.7
OCT 0.90 2.8 50.7 I.01 2.7 48.8
NOV 0.78 6.4 38.5 0.84 6.4 37.2
DEC 0.63 7.1 31.6 0.71 7.5 30.7
Annual Total 14.94 47.8 16.32 53.3
Annual Avera a 48.9 46.9
Source: NRCS, 1996. Natural Resources Conservation Service, West National Technical Center, Centralized
Database System via on-line database [phone], Portland, Oregon.
No wind information is available at or near the Lorencito Canyon Mine site. Therefore, wind
information is presented for the Trinidad/Las Animas Counry Airport, the nearest location where
a wind climatology is available. The wind climatology was obtained from the National Climatic
Data Center in Asheville, North Carolina. A search of the NCDC indicated the most complete
and long-term wind database for Trinidad was the following data for a period of record January
1948 to December 1958, and October 1960 to September 1961. Table 2.04.8-2 is the suttlmary
of the occurrence of wind from the 16 cardinal directions with wind speed grouped into eight
speed intervals.
PERMR./]S\pxember 30. 19% 2.04-3 8