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S <br />RECEIVED <br />Spring Water Report MAY 27 1999 <br />1999 <br />Apex #2 Mine <br />Permit C-81-011 <br />Surface Water <br />Division of Minerab & Geology <br />As in previous years, the single sediment pond for the entire disturbed area did not <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 <br />than 0.1 acre located at the reclaimed office area. The sediment pond discharge is <br />permitted with the Colorado Department of Health as NPDES Permit #COG-850041. <br />(The permit was formerly CO-0036668). Quarterly DMK forms are attached for the l~' <br />quarter 1999. Quarterly sediment pond inspections revealed no problems with <br />functionality of the pond. <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 1999 showed normal conditions, with normal flows in Trout Creek. The <br />water is of good quality and compares favorably to the baseline analysis included in <br />the permit. Iron, zinc and arsenic are in low concentration. <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 instal] 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 mine <br />and were recording fluctuating data. The 1~' water sampling of both wells in 1998 <br />demonstrated normal water quality. <br />For this report, only field data is reported. The wells are scheduled to be sampled for <br />lab analysis later this summer, according to the revised permit. <br />