Laserfiche WebLink
<br />' Somerset Mining Company <br />1994 Annual Hydrologic Report <br />1 Water samples from groundwater wells H-10 and B-6 are taken with a <br />bailer that has a restricted inlet. The bailer is weighted so it <br />' sinks to the bottom of the well when it is empty. The water flows <br />into the bailer slowly so a sample of the water from the bottom of <br />the well is obtained. It is not possible to purge wells H-10 and <br />' B-6 because they are connected to the flooded mine working. Water <br />samples from groundwater wells SC-1, SC-2, and SC-3 are obtained <br />with a bailer after the wells have been bailed to remove the <br />equivalent of one volume of water from the wells. <br />' Water samples were analyzed by ACZ Laboratories, Inc. of Steamboat <br />Springs, Colorado prior to Technical Revision No. 20. Water <br />' samples were analyzed by Commercial Testing & Engineering Co. of <br />Denver, Colorado after Technical Revision No. 20. <br />' Surface Water Information <br />The data collected from the surface water monitoring stations and <br />' laboratory results are presented in Appendix 2. <br />Station H-1, Hubbard Creek, was monitored in April, June, August, <br />' and October for field parameters. In April, the flow was not <br />measured because of safety concerns with the spring runoff. In <br />April, the full suite of surface water parameters prior to <br />' Technical Revision No. 20 was analyzed. In October, the full suite <br />of surface water parameters after Technical Revision No. 20 was <br />analyzed. <br />' Surface water monitoring points S-1 and S-2 are designed to sample <br />the Plow in Sanborn Creek above and below the disturbed area. <br />Sanborn Creek will receive discharge water from the mine. This <br />' source of water will cause Sanborn Creek to flow year around. <br />Monitoring point S-1 flows during spring run-off and significant <br />precipitation events. The disturbed area and mine water could <br />affect the quality of water in Sanborn Creek only when there is <br />' flow at S-1. For this reason, S-2 will be monitored only if S-1 <br />has flow. <br />' Station S-1 was monitored monthly, with flow recorded only in March <br />and April during spring run-off. Since Station S-1 had flow in <br />March and April, Station S-2 was monitored in March and April. In <br />' March and April, the full suite of surface water parameters prior <br />to Technical Revision No. 20 was analyzed. <br />Surface water monitoring point P-1 is located in a sediment trap <br />' drop inlet located near the portal area. This monitoring point is <br />designed to assure that the surface run-off from Small Area <br />Exemption A and C meets the requirements of Rule 4.05.2(3). <br />3 <br />1 <br />