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• 4.8.5.2 Ground -Water Monitoring <br />Map M52 shows the locations of the ground -water monitoring sites. The current list of ground -water <br />parameters to be monitored is given in Table 4.8 -13. The current ground -water monitoring schedule is <br />summarized in Table 4.8 -13a. Table 4.8 -13a was changed in PR -3 (permit term 1993 -1997) in order to <br />accommodate a more clearly understandable and user friendly monitoring schedule format. In Technical <br />Revision TR -93, the Division and Trapper Mining Inc. agreed that well GP -9 is the point of compliance for <br />the Basic Standard for Ground Water for the Third White sandstone. In Technical Revision TR -96, the <br />Division and Trapper Mining Inc. agreed that the Coy well is the point of compliance for the Basic <br />Standards for Ground Water for the Flume Gulch alluvium. <br />Three lists of ground -water parameters are sampled as outlined in Table 4.8 -13, according to the <br />schedule presented in Table 4.8 -13a. The hydrologic data derived from this monitoring program is <br />submitted to the Division on an annual basis by March 15 of each year. The first report was submitted to <br />the Division in January, 1983. Appendix W is updated to contain each annual report. <br />LIST B in Table 4.8 -13 gives the parameters to be sampled on an annual basis during third quarter of <br />each year. LIST C and LIST D are sampled during the second quarter of each year. LIST C is used to <br />sample operational wells which monitor the effects of mining in areas not associated with utility wastes <br />disposal. LIST D is used for wells to monitor the effects of utility wastes disposal. With regard to LIST D, <br />actual installation of wells in the backfilled pits will be dependent upon whether or not utility wastes are dis- <br />posed upgradient from the proposed monitoring sites. Proposed wells in the undisturbed aquifers <br />downgradient of utility wastes disposal sites will be installed as waste disposal progresses and as needed. <br />List E was used for monitoring the LUX -1 well. List E was removed from Table 4.8 -13 in PR -6 because <br />the LUX -1 well was sealed and abandoned in 2006 as a result of the approval of final bond release <br />application SL -7. <br />Historical information on well completion information and lithologic logs for monitoring wells are included in <br />various sections of the permit application. Appendix H, Radian Report Tech. Note 280 - 311 -02 -03 lists <br />information for monitoring well series GF, GBB, and GZ. Section 2.7.7.3 (p 2 -539) of the permit <br />application provides information on lithologic logs for monitoring wells F -1, F -2, P -1, P -3, P -5, and P -8. A <br />well construction diagram is provided in Appendix V. Appendix V also provides lithologic logs and <br />monitoring well completion information for wells GA -1, GA -2, GB -1, GB -2, GB -5, GC -1, GC -3, GE -1, <br />GE -2, GE -3, GD -1, GD -1(2), and Empire Well 81 -03A. <br />Mercury, silver and zinc are not included in LIST B because their concentrations in historic samples were <br />very low and because it is unlikely they would occur in significant concentrations in any potential leachate <br />from utility wastes (refer to Section 4.3.4.6). Iron was removed from List C as the definition of variations in <br />iron concentrations is not very useful since the range in this parameter has been defined. TDS was added <br />to List C until a good correlation between TDS and conductivity can be established. Carbonate was added <br />• to list B and is used for situations when the pH is greater than 8.3. <br />4 -242 <br />NjK?Z tp <br />