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slightly below neutral but similar to previous years. The field pH in well GF-6 (QR) was also <br />above neutral in 2006. <br />Well GP -2 (KLM) water was near neutral in 2006. The field pH values for wells GP -3 and <br />GP-4 were each above neutral from the HI and KLM aquifers, respectively. <br />Wells GP -5 and GP-6 are completed in the QR aquifer. The field pH values from well GP- <br />5 are generally above 8, while the pH from well GP-6 is generally near 7. <br />The 2006 field pH values for HI aquifer well GP -7 were near neutral, while well GP -8 <br />(KLM) water had field pH values near 8.0 in 2006. The 3rd White Sandstone aquifer well GP -9 <br />field pH values are typically near neutral. <br />The alluvial (P -1) and 3rd White Sandstone (P-8) wells in Pyeatt Gulch all contain water <br />with field pH that is generally near neutral. The field pH values for well 81 -03A are generally <br />above 8 units. The field pH value for the GLUX -1 well was slightly less than 8 in 2006. The field <br />pH values for well GMP -1 were above neutral in 2006. The 2006 monitoring did not detect any <br />indication of development of acidic water in the Trapper Mine ground water. <br />3.4 N13 AND NO3 <br />Concentrations of ammonia and nitrate are presented in Appendix B, starting on page B- <br />195. In general, concentrations of ammonia vary significantly from year to year. Wells GD -2, GE- <br />1, GF-4, GF -5, GF-6, GF -7, GLUX -1, GP -3, GP -5, GP -9, P -1 and P -8 all contained NH3 <br />concentrations that are greater than 1.0 mg/I in 2006. Several of these wells are located away from <br />mining and contain natural levels of NH3 concentrations. All of the NH3 concentrations observed <br />in 2006 are within the natural range of this constituent at Trapper Mine. <br />Trapper Mining Company 3 -9 <br />2006 Annual Report <br />