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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
Fields
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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• remained within expected ranged throughout 1995. Well 008-AV-1 froze during December and <br />measurements were not obtained from December through February. <br />Fish Creek Alluvial Groundwater: During 1995, five Fish Creek alluvial wells (006-AY-1, 006-AZ-3, 006- <br />AW-2, 008-AU-3 and 008-AW-3) required monitoring for water levels and field parameters on a monthly <br />basis, and water quality sampling on a quarterly basis. All monitoring requirements were met at these sites. <br />Tables 15 through 19 provide summaries of the 1994 Water Year data collected at each site. Tables ISa <br />through 19a provide period of record statistical summaries of collected data at each site. Figures 29 through <br />38 provide graphical representations of water levels and selected water quality parameters recorded at each <br />site. <br />Water levels at well 006-AY-1, located on Fish Creek upstream of the Southwest Mining District and Mine <br />2, have exhibited a relatively steady increase since approximately 1990 (see Figure 29). During 1995 this <br />trend did not continue. Well 006-AZ-3 is situated downstream of 006-AY-I and below the Fish Creek <br />Borehole. Well 006-AZ-3 is monitored in conjunction with surface water site 307 and the water level <br />relationship is presented as Figure 31. Further downstream, well 006-AW-2 and surface water site 1002 <br />are monitored and water levels are plotted as Figure 33. Again in 1995, the interrelationship between <br />alluvial groundwater and surface water is evident. Well 008-AU-3 and surface water site 305 monitor water <br />levels upstream from the Fish Creek Tipple area with data presented on Figure 35. The furthest <br />• downgradient Fish Creek alluvial monitoring well is 008-AW-3 located near the Fish Creek Tipple. No <br />unusual water level fluctuations were noted at any of these sites during 1995. <br />Field parameter measurements obtained in 1995 remained within previously established ranges. Field <br />conductivities and TDS values are observed in general to increase in the downstream direction along Fish <br />Creek. Well 008-AU-3 is the exception to this rule. The highest levels are noted to occur in association <br />with wells 006-AW-2 and 008-AW-3. The Fish Creek Borehole impacts as measured at well 006-AZ-3 <br />appear moderate relative to the additional increases downstream. <br />Other monitored water quality parameters returned values typically within previously established ranges <br />during 1995. Exceptions include a new minimum dissolved sodium concentration recorded at well006-AY-1 <br />in May; a new maximum dissolved calcium value recorded at well 006-AZ-3 in August along with new <br />maximum ammonia and orthophosphorus values; a new maximum SAR value recorded at well 006-AW-2 <br />in August; new maximum total alkalinity values recorded at well 008-AU-3 in December and April with new <br />maximum bicarbonate and SAR values also recorded in April; and slightly elevated new maximum SAR <br />values recorded at well 008-AW-3 in December and May. <br />Trout Creek Alluvial Groundwater: During 1995, one Trout Creek alluvial monitoring well (008-AT-1) <br />• required monitoring for water levels and field parameters on a monthly basis, and water quality sampling <br />on a quarterly basis. All monitoring requirements were met at this site. Table 20 provides a summary of <br />-6- <br />
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