Laserfiche WebLink
West ElkMirte <br />• eliminated from the monitoring program in 1999. <br />An additional well, SOM 128-H, was completed during the fall of 1990 to monitor the Rollins <br />Sandstone beneath the B-Seam. Exhibit 12 contains the well completion information. SOM 128-H <br />is located east of the West Elk Mine's new office and bathhouse and south of the new haul road <br />(Map 34). Baseline data collection was obtained during the 1991 water yeaz. The well was <br />removed from the monitoring program in 1999 because the unusual hydrograph of the well was <br />likely the result of well casing damage, and therefore, was not providing useful data. <br />MCC plans to construct a monitoring well completed to the B-Seam, down-dip of the Box Canyon <br />longwall panels. The well will be drilled prior to longwall mining panel 18 (the northern most Box <br />Canyon panel). MCC will submit a revision to show the location of the well and to include it in the <br />monitoring program, prior to beginning drilling. <br />Tvnical Hvdrolopic SamplinPMerhods-Surface Water <br />Surface water monitoring is measured seasonally as described on page 2.05-71. Monitoring <br />measurements include measurement of flow, field parameters, and laboratory parameters as <br />identified in Table 5. Surface water flow is measured through Pazshall flumes (of varying throat <br />widths and heights) at the continuous recording stations identified in the Surface Water Monitoring <br />section of the permit document. Continuous recording is accomplished through use of Stevens <br />Type F continuous recorders. In 1997, computerized data loggers were installed at all of the <br />continuous recorders. The two Deep Creek sites and Middle Dry Fork have Global continuous <br />recording devices (a different type and model of recorder from the ones installed at the Steven's <br />recorders). These were also installed in 1997. Field data is maintained and compiled at the West <br />Elk mine office. Surface water monitoring sample measurements include field pazameters, and <br />laboratory pazameters as identified in Table 5. Field pazameters of temperature, pH, and <br />conductivity, aze procured at the surface water sampling point by selecting a grab sample volume <br />from surface water flow and measuring the sample for the pazameters using standazd instruments <br />which have been calibrated in the field daily. Samples for analysis of laboratory pazameters are <br />collected by filling a clean pre-fixed sample bottle from non-aerated flow. Sample bottles aze <br />capped, labelled, placed on ice, and transported to the laboratory for analysis. All equipment is <br />rinsed before and after sampling with distilled water as well as sample water prior to measurement <br />of sample pazameters. <br />Tvnical Hvdro[o2ic Samplinr Methods-Sarines <br />Springs aze measured seasonally as described on page 2.05-74. Monitoring measurements include <br />spring flow, field pazameters, and laboratory pazameters. In sampling springs, a location is <br />selected, which approximates a channel as closely as possible. A step may be cut into the channel <br />base to facilitate positioning of the container measuring volume. Flow measurements are taken <br />through the use of a timed volume approach. The field technician times the spring flow into a <br />specific measured volume container, establishing flow rate. Several measurements are taken and <br />averaged prior to reporting. Field parameters of temperature, pH, and conductivity aze procured at <br />• the spring by selecting a sample volume from the flowing spring and measuring the sample for the <br />parameters using standard instruments which have been calibrated in the field daily. Samples for <br />2.05-77 Revised Dec. 1997 MR208; Revised Jan. 1999 TR88; Rev. Apri! 2006 PRl0 <br />