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groundwater from a perched aquifer in the Burro Canyon. Water quality is poor as <br />indicated by a sulfate value of 2160 mg /1— four times the secondary water quality <br />standard for all total dissolved solids. Groundwater discharge from the portal spring <br />gradually decreased and effectively stopped approximately 3 years ago suggesting that <br />the perched water zone in the Brushy Basin has been depleted. <br />There is no data available for other potential aquifers in the area because there are no <br />known wells within two miles of the mine according to the Colorado State Engineers <br />office. <br />(10) Surface Water Control and Containment Facilities Information <br />There is no affected surface water at the JD -9 Mine. For a full discussion of the surface <br />water at JD -9 see Exhibit G — Water Information. <br />Stormwater is diverted away from the ore and waste -rock stockpile through berms, <br />ditches and runoff basins. See above, (7) Facility Evaluation, for discussion and design <br />of these structures <br />A Drainage Design Plan has been developed for this site and can be found in <br />Appendix III <br />(11) Surface Water Quality Data <br />Mining at JD -9 does not have any effects on surface water as discussed above; therefore <br />there is currently no need for a monitoring plan. <br />(12) Water Quality Monitoring Plan <br />Future use of water from the Dolores River could include municipal and irrigation <br />applications. As discussed above in (7) and (8), it is not anticipated that the JD -9 Mine <br />will have any adverse effect on any surface waters; thus, it is not necessary at this time to <br />implement a monitoring plan. <br />(13) Climate <br />The weather station with the most representative data for the JD -9 Mine is located in <br />Uravan Colorado, approximately eleven miles from the portal. Available precipitation <br />and pan evaporation data for this site is presented in Exhibit K — Climate. <br />13.1 Temperature <br />Temperatures at the Uravan NWS meteorological station generally range from 48° to 96° <br />F in the summer and from 15° to 59° F in the winter. The overall average annual <br />temperature at Uravan is 53.2° (See Exhibit K — Table 1) <br />O'Connor Design Group Inc. U - 22 <br />