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Well GP-2 (IaM) water was above neutral in 2003. The field pH values for wells GP- <br />3 and GPI have shown little change for water collected from the HI and IQM aquifers, <br />respectively. Well GP-3 has generally had pH values near neutral, while values for well GPr4 <br />have been around 9. <br />Wells GP-5 and GP-6 are completed in the QR aquifer. The field pH values from well <br />GP-5 are generally above 8, while the pH from well GP-6 is generally above 7. <br />The 2003 field pH values for HI aquifer well GP-7 were near neutral, while well GP-8 <br />(IQ.M) water had field pH values near 8.0 in 2003. The 3rd White Sandstone aquifer well <br />GP-9 field pH values are typically near neutral. <br />The alluvial (P-i), Lewis Shale (P-3), 2nd White (P-5), and 3rd White Sandstone (P- <br />8) wells in Pyeatt Gulch all ~ntain water with field pH that is generally near neutral. The <br />field pH values for well 81-03A are generally above 8 units. The field pH values for the <br />GLUX-1 well were slightly less than 8 in 2003. The field pH for well GMP-i was above <br />neutral in 2003. The 2003 monitoring did not detect any indication of development of acidic <br />water in the Trapper Mine ground water. <br />3.4 NH3 AND NO, <br />Concentrations of ammonia and nitrate are presented in Appendix B, starting on <br />page B-179. In general, wncentrations of ammonia vary significantly from year to year. <br />Wells GD-2, GE-1, GF-S, GF-6, GF-7, 81-03A, GLUX-1 and P-1 all contained NH3 <br />concentrations that are greater than 1.0 mg/I in 2003. Several of these wells are located <br />away from mining and contain natural levels of NH3 concentrations. All of the NH3 <br />i <br />3-10 <br />