Laserfiche WebLink
1 <br />' ItJTRODUCTION <br />The Empire Energy Eagle PJo. 5 and No. 9 mines are underground coal mines <br />' located approximately 7 miles south of Craig, Colorado (Figure 1). The <br />areal extent of the underground workings in the No. 5 Mine was <br />approximately 1,325 acres at the end of 1983 and in the No. 9 Mine was <br />' approximately 1,000 acres. The coal being mined is from the Cretaceous <br />Age Williams Fork Formation. The No. 9 Mine is in the "P" seam and the <br />No. 5 Mine is in the stratigraphically lower "F" seam. <br /> Hydrologic monitoring has been conducted at the mine site since 1980. <br />' This report presents the results of the 1983 monitoring. The report <br /> fulfills the requirements of Stipulation No. 5 in the mining perm it for <br /> the No. 5 and No. 9 min es. The permit application for these mines <br /> contain a discussion of th e monitoring prior to April, 1983. <br /> The hydrologic monitoring is divided into two parts: 1) ground water, <br />' and 2) surface water. The monitoring locations are shown on Figure 2 <br />~ and summarized on Table 1. lJater levels, flows, and water quality are <br />monitored on a regular basis. The water quality monitoring includes <br />' ~ field parameters (Table 2), water quality parameters (Table 3), and <br />NPDES parameters (Table 4). All of the monitoring is carried out by <br />Empire Energy personnel. The water quality samples are analyzed by <br />Bookcliffs Commercial Laboratories, Steamboat Springs, Colorado, a USEPA <br />' certified laboratory. This report includes data collected specifically <br />to meet reouirements of the Colorado h1LRD as well as data collected to <br />meet the requirements of NPDES permits. <br />1 <br /> <br />1 <br /> <br />1 <br />1 <br /> <br />1 <br />' -1- <br />