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_~ A decreasing trend in sodium has been observed at well GP-6. Declines in sodium <br />concentrations at well GF-7 continued in 1996. <br />The heavy metals with a "t" subscript by their symbol represent total <br />measurements, while the others are dissolved concentrations. Dissolved and total <br />concentrations are similar for most of the heavy metals, except for iron concentrations in <br />some wells where the total values are significantly greater in some wells. <br />Iron concentrations have varied over large ranges near the mine pits and at <br />distant wells but no consistent trends have been observed. Levels of aluminum, barium, <br />boron, phosphate and manganese have also varied over significant ranges but no <br />consistent trends have been observed. Arsenic, cadmium, chromium, copper and lead <br />concentrations have been low with a few exceptions. Copper concentrations in wells GB-5 <br />• and GE-3 have been higher mainly prior to mining. A few early lead concentrations in wells <br />GE-2 and GE-3 were also observed. Molybdenum, nickel, selenium and vanadium <br />concentrations have stayed low. The recent radium 226 values have been low. <br />3.7 SPRING AND SEEP WATER QUALITY <br />Table B-2 in Appendix B presents the water-quality data for the springs and seeps <br />at the Trapper Mine. The spring and seep locations are shown on Maps 2-1, 2-2 and 2-3. <br />Flow from the springs and seeps are shown on Table B-2, which shows that only East <br />Pyeatt and Johnson Gulch springs exceeded 5 gpm in their discharge rate in 1996. Water <br />quality from the springs and seeps are similar to the ground-water quality for the site. The <br />TDS from Johnson Gulch spring is much higher than the remainder of the spring's water <br /> <br />3-13 <br />