2014-12-29_REPORT - M1977215

• Permit No: M1977215
• IBM Index Class Name: Report
• Doc Date: 12/29/2014
• Doc Name: Interim Waste Rock Characterization Summary, 1.
• From: Rio Grande Silver, Inc.
• To: DRMS
• Email Name: RCO
• Media Type: D
• Archive: No

Mr. Randy McClure/Rio Grande Silver,Inc. 6
MLI Job No. 3819-November 26,2014
Table 6.-Humidity Cell Analytical Results,BDP-F1391-051113(1.5162 kg),Bulldog Project
Total Fe SO4= Acidity,CaCO0 Equivalents Alkalinity,CaCO,Equivalents
Vol. Effluent Redox,mV Conductivity Cum. Fe'+ Fe'+ Cum. Cum. Cum.
Week L pH (vs Ag/AgCI) pS/cm mg/I mg/kg mg/kg mg/I mg/I mg/1 mg/kg mg/kg mg/I mg/kg mg/kg mg/1 mg/kg mg/kg
0 0.660 4.92 199 761 2.54 1.106 1.106 0.77 1.77 380.0 165.41 165.41 24 10.45 10.45 2 0.87 0.87
1 0.740 4.93 222 586 0.64 0.312 1.418 0.18 0.46 270.0 131.78 297.19 16 7.81 18.26 2 0.98 1.85
2 0.729 4.89 230 367 0.34 0.163 1.581 0.14 0.20 130.0 62.50 359.69 9 4.33 22.58 1 0.48 2.33
3 0.723 4.93 223 286 0.28 0.134 1.715 0.12 0.16 120.0 57.22 416.91 8 3.82 26.40 1 0.48 2.81
4 0.755 4.83 258 325 0.40 0.199 1.914 0.17 0.23 120.0 59.75 476.66 10 4.98 31.38 1 0.50 3.31
5 0.726 4.66 265 307 0.32 0.153 2.067 0.19 0.13 110.0 52.67 529.33 15 7.18 38.56 1 0.48 3.79
6 0.739 5.01 281 252 0.55 0.268 2.335 0.22 0.33 70.0 34.12 563.45 12 5.85 44.41 1 0.49 4.28
7 0.747 4.91 303 279 0.70 0.345 2.680 0.27 0.43 100.0 49.27 612.72 12 5.91 50.32 1 0.49 4.77
8 0.731 5.02 238 262 0.83 0.400 3.080 0.33 0.50 100.0 48.21 660.93 12 5.79 56.11 2 0.96 5.73
9 0.729 5.13 244 219 0.81 0.389 3.469 0.32 0.49 50.0 24.04 684.97 12 5.77 61.88 2 0.96 6.69
10 0.723 5.02 265 245 1.20 0.572 4.041 0.45 0.75 80.0 38.15 723.12 14 6.68 68.55 2 0.95 7.64
11 0.724 4.52 223 206 1.06 0.506 4.547 0.43 0.63 60.0 28.65 751.77 13 6.21 74.76 1 0.48 8.12
12 0.756 4.88 241 214 1.40 0.698 5.245 0.48 0.92 40.0 19.94 771.71 11 5.49 80.25 1 0.50 8.62
13 0.745 4.57 306 226 1.61 0.791 6.036 0.60 1.01 70.0 34.40 806.11 18 8.84 89.09 1 0.49 9.11
14 0.771 4.67 179 193 1.52 0.773 6.809 0.61 0.91 60.0 30.51 836.62 13 6.61 95.70 3 1.53 10.64
15 0.760 5.09 332 209 2.01 1.008 7.817 0.78 1.23 50.0 25.06 861.68 15 7.52 103.22 2 1.00 11.64
16 0.867 5.18 344 173 1.46 0.835 8.652 0.65 0.81 50.0 28.59 890.27 13 7.43 110.65 2 1.14 12.78
17 0.753 5.34 307 165 1.38 0.685 9.337 0.70 0.68 60.0 29.80 920.07 16 7.95 118.60 3 1.49 14.27
18 0.772 5.36 368 174 1.95 0.993 10.330 0.80 1.15 50.0 25.46 945.53 13 6.62 125.22 3 1.53 15.80
19 0.757 5.22 360 186 2.63 1.313 11.643 0.93 1.70 50.0 24.96 970.49 17 8.49 133.71 2 1.00 16.80
20 0.745 5.79 208 181 2.92 1.435 13.078 0.96 1.96 50.0 24.57 995.06 24 11.79 145.50 5 2.46 19.26
21 0.787 5.35 319 178 2.67 1.386 14.464 0.99 1.68 70.0 36.33 1031.39 25 12.98 158.48 3 1.56 20.82
22 0.764 5.94 262 177 2.13 1.073 15.537 0.92 1.21 40.0 20.16 1051.55 16 8.06 166.54 4 2.02 22.84
23 0.763 6.01 241 161 2.41 1.213 16.750 0.95 1.46 50.0 25.16 1076.71 16 8.05 174.59 4 2.01 24.85
24 0.767 6.16 194 167 2.65 1.341 18.091 0.93 1.72 50.0 25.29 1102.00 15 7.59 182.18 5 2.53 27.38
Testing terminated
Figure 1a:Weekly Humidity Cell Analytical Results Figure lb:Cumulative Humidity Cell Analytical Results
7 250 7 1500
e ' 200 a 1200 ,,
5 � ���.....� 150 n 5 II . 900
e �/�i E
43 `1 w 4 600 m
U
3 , 50
V
0
0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40
Weeks Weeks
McCLELLAND LABORATORIES,INC.