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REP19056
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Last modified
8/24/2016 11:47:49 PM
Creation date
11/27/2007 2:33:18 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
3/27/1996
Doc Name
1995 AHR (1 of 2)
Annual Report Year
1995
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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• provide summaries of the 1995 Water Year data collected at Trout Creek surface flow sites. <br />Site 14 is also monitored under the CYCC program as a surface water flow site requiring 12 flow/field <br />parameter visits and four water quality sampling instances. Consequently, data beyond that required to fulfill <br />the TCC requirements is presented on Table 31. Sites 304, 307, and 305, are monitored in conjunction with <br />alluvial wells 008-AV-1 and 2, 006-AZ-3, and 008-AU-3 respectively. Figures 25, 31, and 35 provide <br />graphical representations of data collected at these sites. 1995 Water Year data for these sites is presented <br />as Tables 32, 33, and 34. The historical summary of flow rate data for selected surface sites is presented <br />as Table 35. This table also provides flow summary information for discharge sites 62, 109, and 115. <br />NATURAL SPRING MONITORING <br />Two natural springs, SWl and SW2, located over previously mined areas in the Southwest Mining District <br />required monitoring during 1995. Quarterly flow, field parameter, and water quality samples are required <br />for these sites. During 1995, one sampling instance was omitted at these locations. TCC has identified this <br />omission and taken appropriate steps to ensure required monitoring instances will be completed in the future. <br />Tables 52 and 53 provide summaries of data collected at these sites during the year. No unusual water <br />quality characteristics are apparent. Flow at both sites was observed to have ceased in September following <br />• mining activity in the area. SWl flows typically occurred throughout the year prior to mining. SW2 flows <br />were historically more sporadic. TCC will continue to monitor these locators in 1996. <br />One natural spring (20-14) located in the vicinity of proposed future underground mining areas required <br />semi-annual flow/field parameter and water quality sampling during 1995. Monitoring at the site was <br />initiated in 1987 and flows have historically been minor (see Figure 80). Conductivities historically <br />exhibited by the spring are presented as Figure 81. A statistical water quality summary for the site is <br />presented as Table 36a. Monitoring requirements were met at this site in 1995. <br />SPOIL SPRING MONITORING <br />Two spoil spring sites, 7 and the 303 series, require monitoring under the approved program at TCC. Spoil <br />spring 7 is monitored in accordance with the approved spoil spring monitoring program. The spoil spring <br />monitoring program was initiated in 1986 and is conducted annually. In accordance with the approved plan, <br />the annual mine wide survey is conducted during May with springs measured for flow and field parameters. <br />If a spring is discharging at or above 35 gallons per minute it is monitored for the next year in accordance <br />with the monitoring plan. During the 1994 Water Year, spoil spring 7 flow was measured in excess of 35 <br />gpm and consequently additional monitoring requirements were triggered. 1995 Water Year data for this <br />• site is presented as Table 37. A statistical water quality summary for the site is presented as Table 37a. <br />Hydrology monitoring requirements at this site were fulfilled during 1995. Anomalous water quality <br />-9- <br />
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