Laserfiche WebLink
<br />' Somerset Mining Company <br />' 1994 Annual Hydrologic Report <br />Station P-1 was monitored monthly, with no flow recorded in any <br />month. Since there was no flow at this monitoring station, there <br />' were no samples to analyze for settleable solids. <br />Stipulation 14 to the permit required SMC to submit sediment <br />' control demonstrations for all small area exemptions located on the <br />Somerset/Sanborn Creek Mine permit area. SMC will monitor the flow <br />from the small area exemptions to assure compliance with 4.05.2(3). <br />SMC will use its best efforts to obtain samples. The samples will <br />' be analyzed for pH, conductivity, and total settleable solids. <br />Samples will be in compliance if they contain settleable solid <br />levels of 0.5 ml/1 or less and the pH is greater than 6.5 and less <br />' than 9.0. Once two samples are taken that confirm compliance, no <br />further sampling will be required unless requested by the Division. <br />Results of the analytical analysis of the sample(s) will be <br />' included with each year's annual hydrologic report. <br />On September 30, 1994, during a storm event, a sample was obtained <br />for SAE-2. The area protected by this SAE is the cemetery access <br />' road, water tank, and all areas above. The run-off from this area <br />is directed along the cemetery access road to a U-shaped concrete <br />foundation for the cattle guard in the Elk Creek access road. The <br />' water that passes through this foundation must pass through a silt <br />fence before it is discharged into Elk Creek. The sample point is <br />the point where the water cascades off the U-shaped concrete <br />' foundation. Results of the analysis are: pH = 8.03 s.u., <br />conductivity = 97 umhos/cm, total settleable solids = 0.2 ml/1. <br />This sample was in compliance with the limitations stated above. <br />' No other samples were obtained during the weekly site inspections <br />of all SAE sample points and the spot checks during storm events. <br /> Surface water monitoring points U-1 and C-1 are designed to verify <br />' that the underground mine does not have an adverse effect on the <br /> quality or quantity of run-off in the unnamed drainage or Coal <br /> Gulch which are both ephemeral streams. Monitoring results are <br />' expected to be similar to those col lected in 1981 and 1982. <br /> Station U-1 was monitored month ly, with no flow recorded in any <br /> month. Station C-1 was monitored monthly, with flow recorded in <br />' March and the full suite of surface water parameters prior to <br /> Technical Revision No. 20 wa s analyzed. In April, even though <br />' there was no flow at station <br />record field parameters, but C-1, there w <br />insufficient as sufficient <br />water to take water to <br />a sample <br /> for analysis. <br />' Surface water monitoring points NF-1 and NF-2 are designed to <br />sample the flow in the North Fork of the Gunnison River above and <br />below the Sanborn Creek Mine disturbed area. Monitoring results <br />' 4 <br />