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2011-02-10_PERMIT FILE - C1981012A (5)
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2011-02-10_PERMIT FILE - C1981012A (5)
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Last modified
8/24/2016 4:30:55 PM
Creation date
2/28/2011 3:39:54 PM
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Template:
DRMS Permit Index
Permit No
C1981012A
IBM Index Class Name
Permit File
Doc Date
2/10/2011
Section_Exhibit Name
SECTION 2.04 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING ACTIVITIES
Media Type
D
Archive
Yes
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constant flow was observed during the fall and winter seasons dictated by <br />snow and the freeze-thaw cycle, and limited vegetation growth eliminating <br />evapotranspiration water loss. With exception to extended periods of <br />freezing weather conditions limiting flow during the winter months, late <br />spring/early summer seems to be the low flow season of the year. This is <br />tied to a number of envirormiental conditions such as snow melt being gone, <br />increased vegetation growth promoting evapotranspiration, and limited <br />precipitation events. <br />Apache Canyon. As indicated in 6chibit 12, only 20 days of flow <br />were recorded in Apache Canyon over the year. These events were the result <br />of heavy localized thunderstorms which occurred during July and August. <br />Other than these two months, only one minor flow event occurred in June and <br />December, while 2 events occurred in October. All events were in the form <br />of a short duration spike in the hydrograph ranging from 0.001 to 51.6 cfs. <br />As previously discussed in other reports, land use in the canyon (grazing, <br />on-stream impoundments, etc) may be the cause of limited stream flow. . <br />Ciruela Canyon. 7Wo stations (CCS-1 and CCS-2) located above and <br />below the Golden Eagle Mine were monitored quarterly. While no flow has <br />been observed at CCS-1, flow at CCS-2 has varied fran 10 to 50 gallons per <br />minute. This flow is produced from the Golden Eagle Mine discharge. As <br />with Apache Canyon, land use in the upper drainage may be the result of <br />limited stream flow in the lower canyon. <br />With this data, sufficient information was available to <br />differentiate seasonal flow variations within these canyons. Approval was <br />received from CMLRD to discontinue monitoring stream flow at the twr, flume <br />stations in Apache and Santistevan Canyons. <br />Surface and groundwater monitoring in the permit and adjacent <br />areas will also continue to gather data to assess long-term impacts of the <br />operations. The specific monitoring program is presented in Section <br />2.05.6, Protection of the Hydrologic Balance. <br />2.04-32 <br />
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