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' Table 1 Whirlwind Mine Water <br /> ' General Parameters Major Ions(mg/L) Metals(mg/L)(i) <br /> Flow I <br /> Sample Information Rae TSS TDS pH i Hard Alk Cond Na Ca Mg K Cl F NO, P HCO3 SO, Al Sb As Ba Be <br /> (gPm) (mg/L) (mg/L) (s.u.) 1 (mg/L) (mg/L) (pS/cm) <br /> ' Whirlwind Mine <br /> WW-1, EFRC, 9/11/06 NA 390 7.5 57 302 708 144 13 6 10.5 29 0.39 0.72 0.01 365 19 0.015 0.3 <br /> ' Whirlwind. EFRC, 10/24/06 NA 382 8.3 280 140 12.4 4.8 9.0 20 0.6 1.2 36 1.5 0.023 0.2 <br /> WW Pool, EFRC, 1/17/07 NA 21.3 340 8.60 43.8 266 595 123 9.2 5.0 9.3 17 0.3 0.5 <0.1 314 28 0.2 <0.05 0.027 0.1 <0.01 <br /> Whirlwind Pool, EFRC,4/27/07 NA <1.0 358 8.72 48.5 268 106 10.2 5.6 9.9 14 0.5 0.5 <0.1 311 27 0.1 <0.0006 0.026 0.1 <0.01 <br /> WW Sump, EFRC, 3/10/08 2.4 3,540 661 8.21 296 143 116 I 22.9 21.9 53 0.4 4.3 2.85 361 38 0.062 <0.01 <br /> WW Sump, EFRC,6/19/08 2.8 132 536 10.0 252 592 150 4 1 6 17 0.7 1.9 0.25 90 88 0.046 0.1 <0.01 <br /> WW Sump, EFRC, 9/8/08' 2.2 26 460 9.11 260 649 138 10 7 8 16 0.5 1.8 0.08 318 62 0.044 0.1 <0.01 <br /> WW Sump, EFRC, 12/16/08 2.2 8.75 609 <br /> WW Decline, EFRC,4/21/10 1.9 8.07 576 <br /> WW Decline, EFRC, 2/7/11 1.7 8.49 590 <br /> WW Decline, EFRC, 11/9/11 1.0 356 8.33 631 0.3 42 <br /> Whirlwind Decline(Brushy Basin <br /> Formation <br /> Whirlwind Seep, EFRC, 5/3/07 2 to 4 360 8.64 278 119 10.7 5.8 21.8 33 0.5 0.2 <0.3 326 30 0.1 0.024 0.2 <br /> "Upper"Whirlwind Sump, NA 574 8.69 362 188 9.8 4.7 12.0 14 1.6 3.1 <0.3 421 93 1.29 0.032 <0.1 <br /> EFRC, 5/3/07 <br /> Colorado Water Standards <br /> Ground Water, Domestic 6.5 to 8.5 250 4.0 10.0 250 0.006 0.01 2.0 0.004 <br /> Ground Water,Agriculture 6.5 to 8.5 2 100 5 0.1 0.1 <br /> Surface Water, Stream e, 6.5 to 9.0 250 0.100 0.100 <br /> Surface Water, Domestic 5.0 to 9.0 250 2.0 10.0 250 0.1 1.0 0.004 <br /> Surface Water,Agriculture 100 0.1 0.1 <br /> EPA Water Standards(h) <br /> Maximum 30 6.0 to 9.0 <br /> Average 20 6.0 to 9.0 <br /> Notes: <br /> 1.Water standards are provided for reference only.These standards do not apply to the mine water unless it is discharged or used for drinking water, irrigation, or other regulated uses. <br /> 2. Concentrations or activity levels above a state or federal standard are shaded for reference purposes. Shading indicates that the measured level is elevated compared to certain standards of water use. <br /> 3. Metal and radionuclide levels are reported as total recoverable. <br /> Nitrate sample recollected on 9/18/08 due to hold time exceedance on 9/8/08 sample <br /> Table 1 Water Quality Data <br /> Whirlwind Mine Water <br /> 1 of 2 <br />