Laserfiche WebLink
Kerr (Marr) Mine - 2008 Annual Hydrology Report <br />FIGURE 4 MINE AREA SURFACE WATER AVERAGE pH vs. FLOW (2005-8) <br />10.00 -- ------ -- -------- --- - - - <br />i i <br />9.50 - ------ - - <br />i <br />j <br />9.00 -- --- ---- ---- <br /> <br /> <br />0.250 0.300 0.350 <br />STN 301 -fib- STN 302 -9- STN 304 -A- STN 305 -i- STN 321 <br />7.0 LOADOUT AREA SURFACE WATER <br />Two Loadout surface water sites (319 and 320) were monitored weekly from March through June, then <br />monthly through September, 2008. There was discharge from Site 320 beginning May 1 and ceasing in <br />the end of July 2008 ranging from 0.5 to 2.0 cfs. No flow was observed after July 2008 at Station 320 <br />and there was no discharge in 2008 from Station 319. The sedimentation; pond associated with Site <br />319 filled during spring runoff and retained water through September. Site monitoring locations are <br />shown on Map 2, Loadout Area Monitoring Stations. <br />As of January 1999, the monitoring program for surface discharge points (for the mine area) was <br />reduced to monthly monitoring for a parameter list including flaw, temperature, pH, settleable solids, <br />and oil and grease. For Site 320, only the field measurements (flow, temperature and pH) are required <br />for monitoring. This data is contained in Appendix A, 2008 Field Data. The flow data for the Loadout is <br />presented on Table 4, Loadout Area Surface Water Quality Data. Figure 5, Loadout Station 320 - <br />Historical Flow and pH, shows the variation in flow and associated pH reading at Station 320 for all <br />historic flows measured since 2003. - <br />Surface water sites 316, 317, and 318 were dropped from monitoring as of October 1999. No data was <br />collected from these sites during this water year. <br />Kerr Nine/AHR 2008 Page 8