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1995 Annual Hydrologic Report <br />Page 3 <br />prepazed33 to give a statistical analysis of information taken at this site since 1979. <br />Diagram S95-1 is a graph relating TDS to time and incorporating a Lowess Smooth Plot. <br />This plot was prepazed using a "nearness" factor of 0.5. All dischazges from this site were <br />within the permit limits. <br />Discharge point 002 is water siphoned from our former NW Intake Portal of the <br />Roadside South Portals. Mine inflows that are not used underground or pumped to the <br />preparation plant are routed to an abandoned portion of the mine for dischazge from this <br />point. Flow information for this site is discussed in the Mine Water section of this <br />report. Data pages SE-4 and 5 include a listing of water quality monitoring performed <br />at this site during the Year. Data page SO-3 includes a full suite analysis performed on <br />samples collected during 1994 and 1995 (As with Outfall 001, input errors for the 1994 <br />information have been corrected). The TDS dropped again this Year by about 10%. <br />This trend is expected to stabilize at some TDS level between 1000 and 1500 MG/L. <br />Table 595-3 is a statistical summary of sampling since 1979. Diagram S95-2 was <br />prepared to show a I.owess Smooth Plot (nearness = 0.5) through the TDS information. <br />The source of water for this discharge point has varied over time, therefore information <br />• prior to December 1992 may not be representative of future trends. All dischazges <br />during this Year were within the permit limits. <br />Discharge point 003 was utilized for discharging water pumped out of the old Cameo <br />Mine and has not been used since 1979. There is no new information for this site this <br />Year. <br />Discharge point 004 continued to be used all year to discharge from the Roadside North <br />Portal. Flow information is given in the Mine Water section of this report. A listing of <br />weeldy monitoring results is given on data pages SF-13 and 14 and result of the annual <br />full suite analysis is presented on data page SP-3 (As with Outfa11001, input errors for <br />the 1994 information have been corrected). Table S95-4 is a statistical summary of <br />water quality data collected since 1979. Diagram 595-3 show a Lowess Smooth Plot <br />(nearness = 0.5) through historic TDS data on this site. The wide variation in TDS is <br />a function of the source of the water at the time of discharge. The primary sources are <br />the portal ramp underdrain represented by location 1 for the Roadside North Portal in <br />the Mine Water section, active area mine inflows and sealed area inflows at location 8. <br />One discharge permit violation occurred on June 30, 1995, resulting in DMG NOV C- <br />95-021. A sump overflowed due to a pump problem, resulting in suspended solids being <br />picked up as it overflowed. Changes were made in the mine pumping system to <br />• minimize the potential of the same problem in the future <br />