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FP.Ot1 GP.E~~ LEWICKI FqX tJO. 30352993_5 Jul. 20 2000 01:24Pt1 P2 <br />Spring and Summer Water Report <br />2000 <br />Apex #2 Mine <br />Permit C-81-011 <br />Surface Water <br />As in previous years, the single sediment pond for the entire disturbed area did aot <br />discharge; it only contained water in the spring as a result of snowmelt. All disturbed <br />area is channeled into the sediment pond except for a small exemption area of less than <br />0.1 acre located at the reclaimed office area. The sediment pond discharge is permitted <br />with the Colorado Department of Health as NPDES Permit #COG-850041. (The permit <br />was formerly CU-0036668). Quarterly DMR forms are attached for the ls' and second <br />quarter 2000. Quarterly sediment pond inspections revealed no problems with <br />functionality of the pond. Two inspections ate attached. <br />Trout Creek, the perennial stream located adjacent to the reclaimed yard area, was <br />tested quarterly for pH, Specific conductance, temperature and flow. The sample <br />location was moved to immediately downstream of the reclaimed area. The data for the <br />1" quarter 2000 showed normal conditions, with normal flows in Trout Creek. The <br />water has historically been of good quality and compares favorably to the baseline <br />analysis included in the permit. Iron, zinc and arsenic ere in low concentration. The <br />summer levels showed relative drought conditions. <br />All portal seals are intact and do not show any signs of seepage or other problems. The <br />mine or its reclamation has not had any adverse effect on the prevailing hydrologic <br />balance. The diversion ditch above the minesite along the residential access road <br />required cleaning as did the culvert crossing of this diversion under the Trout Creek <br />Road. <br />Ground Water <br />In 1997 a revision was submitted to install two new shallow groundwater monitoring <br />wells upstream and downstream of the mine reclaimed area. These wells were installed <br />in 1997 and replaced the old upstream and downstream wells. This was done since the <br />downstream well and surface water monitoring points were near the P&M Edna mint <br />and were recording fluctuating data. The 1" water sampling of both wells in 1998 <br />demonstrated normal water quality. <br />For this report, field data and lab data are included. The wells were sampled for lab <br />analysis On July J/~~3, 2000, according to the sampling plan of the revised permit. <br />The field data for both wells, which were sampled on the same date, are given below: <br />~~v10~~ <br />