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REP10179
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REP10179
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Last modified
8/24/2016 11:39:37 PM
Creation date
11/27/2007 12:20:41 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Report
Doc Date
5/5/1995
Doc Name
1994 AHR (1 of 2)
From
Twentymile Coal Company
To
DMG
Annual Report Year
1994
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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and field parameter measurements with quarterly water quality sample wllection. The monitoring <br />• requirements for all sites except 302 are further described to require 12 flow and field parameter monitoring <br />instances to occur between March and September along with 4 water quality sampling events. The majority <br />of monitoring requirements wece fulfilled at these sites in 1994 with the exception that flow and field <br />parameter data collection was not initiated until April and "make up" monitoring instance was not completed <br />in order to provide the required I2 instances. Required monitoring at site 302 included monthly flow, field <br />parameter, and water quality sampling during the irrigation season June through September. Site visitation <br />requirements were met at site 302, however, a water quality sampling omission occurred in July as the site <br />was addressed in accordance with the quarterly sampling requirement applicable to other surface sites rather <br />than the specified moodily schedule. These results are again attributable tq miscommunication between <br />personnel during transifion of the hydrology monitoring duties. TCC has identified these omissions and will <br />emphasize compliance with the monitoring program to ensure the omissions are not repeated. <br />Tables 23 through 27 provide summaries of the 1994 Water Year data collected at Fish Creek surface flow <br />site. Tables 23a through 27a provide period of record statistical summaries of collected data at each site. <br />Figures 50 through 69 provide graphical representations ofwater levels and selected water quality parameters <br />recorded at each site. Again, flow patterns were exhibited at these sites with spring runoff periods <br />accounting for the peak flows observed. Runoff magnitudes were somewhat lower than normal during 1994 <br />based upon comparison with previous years data. At all sites, the inverse relationship between flow and <br />• field conductivity was evident. <br />Water quality parameter values noted to occur outside of previously established ranges include the following. <br />A new maximum alkalinity value at site 16 was identified in June; a new maximum total recoverable <br />manganese value was recorded at site 302 in August but was followed by a typically lower measurement; <br />and an elevated total recoverable cadmium value was detected in April at site 1002 with subsequent <br />measurements non-detectable. <br />Trout Creek: Three surface flow monitoring sites on Trout Creek are utilized. Site 301 is located on Trout <br />Creek above the confluence with Middle Creek; site 69 is located on Trout Creek below the confluence; and <br />site 1005, established in 1994, is located downstream of confluence of Fish Creek and Trout Creek. <br />Required monitoring for these sites included montlily flow, field parameter, and water quality sampling <br />during the irrigation season June through September. Site visitation requirements were met at these sites, <br />however, water quality sampling omissions occurred in July as these sites were also addressed in accordance <br />with the quarterly sampling requirements applicable to other surface sites rather than the specified monthly <br />schedule. As with Fish Creek site 302, these results are again attributable to miscommunication between <br />personnel during transition of the hydrology monitoring duties. Again, TCC has identified these omissions <br />and will emphasize compliance with the monitoring program to ensure the omissions are not repeated. <br />. Tables 28 through 30 provide summaries of the 1994 Water Year data collected at Trout Creek surface flow <br />site. Tables 28a and 29a provide period of record statistical summaries of collected data at sites 301 and <br />-8- <br />
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