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REP16265
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REP16265
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Entry Properties
Last modified
8/24/2016 11:45:36 PM
Creation date
11/27/2007 1:49:53 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Report
Doc Date
2/2/1995
Doc Name
1994 AHR
Annual Report Year
1994
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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<br />t Somerset Mining Company <br />1994 Annual Hydrologic Report <br />The Division stated: "This monitoring data is valuable in <br />characterizing the seasonal fluctuations of the springs in the area <br />that will be mined. The Somerset Mine should have resumed <br />monitoring these springs to establish a correlation between the old <br />data and what is occurring currently. In lieu of this, the mine <br />' should conduct a spring and seep survey next year and compare this <br />data with that already collected. This will be necessary to <br />establish the baseline. The baseline will be used to see if the <br />proposed mining activity will have a detrimental impact on the <br />' springs. Somerset should submit an interpretation of the <br />correlation of the monitoring results of the new data. This should <br />be incorporated into the permit's statement of probable <br />' hydrological consequences. The Somerset Mine should also commit to <br />a monitoring plan that will monitor these springs during <br />subsidence. The following is a suggested monitoring plan and <br />' schedule for submittal of information. <br />(a) The Somerset Mine will monitor springs and seeps 1 through 6 <br />monthly from March through October. Springs and seeps 7 <br />through 11 will be monitored monthly. This will begin when <br />practicable and will continue through the end of 1993. <br />' (b) The springs and seeps will be monitored for flow, pH, <br />electrical conductivity and temperature. <br />(c) The data from this monitoring and an interpretation will be <br />submitted with the 1992 Annual Hydrological Report. <br />(d) Monitoring will recommence one year prior to retreat mining <br />in the area of the springs and seeps and continue for an <br />additional two years after the area is retreat mined. An <br />interpretation of the results and correlation with past <br />' monitoring results will be submitted with the next annual <br />report. <br />(e) For this permit revision, the application should identify the <br />' source and use of these springs." <br />SMC responded by including new pages 2.04-29xviii & xix which <br />' incorporated 1992 spring monitoring, revised pages 2.04-38i & ii to <br />add a discussion of Springs 1-11 and described the source and use <br />of the springs, revised page 2.05-46iii to include hydrologic <br />' monitoring of the springs, revised page 2.05-46iv to include <br />interpretation and correlation of the spring monitoring data in the <br />1992 and 1993 annual hydrologic reports, and revised page 2.05-47 <br />to commit to the required monitoring plan. The Division then made <br />' an additional requirement for SMC to commit to augmenting the flows <br />in the North Fork should any reduction in flows from the undermined <br />ephemeral drainages or springs be attributed to effects of mining. <br />' 9 <br />
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