2014-12-29_REPORT - M1977215 ‎(2)‎

• Permit No: M1977215
• IBM Index Class Name: Report
• Doc Date: 12/29/2014
• Doc Name: Interim Wastev Rock Characterization Summary, 2.
• From: Rio Grande Silver, Inc.
• To: DRMS
• Email Name: RCO
• Media Type: D
• Archive: No

McClelland Laboratory-1310332 Amended
Duplicate Sample Duplicate
QCBatchID QCType Parameter Method Sample Result Result Units RPD
QC 13100973 Duplicate Total Dissolved Solids(TDS) SM 2540C 1310355-001 297 303 mg/L 2%
QC 13100973 Duplicate Total Dissolved Solids(TDS) SM 2540C 1310400-001 8230 8300 mg/L 1%
QC13100973 Duplicate Total Dissolved Solids(TDS) SM 2540C 1310380-005 116 119 mg/L 3%
Spike Sample MS MSD Spike MS% MSD%
QCBatchID QCType Parameter Method Sample Result Result Result Value Units Rec. Rec. RPD
QC13100698 MS 1 Fluoride EPA 300.0 1310331-001 1.04 22.9 223 2.00 mg/L 109 106 3%
QC13100698 MS 2 Fluoride EPA 300.0 1310334-002 0.104 1.98 2.07 2.00 mg/L 94 98 4%
QC13100700 MS 1 Chloride EPA 300.0 1310331-001 ND 57.4 57.5 5.00 mg/L 106 106 <1%
QC13100700 MS 2 Chloride EPA 300.0 1310334-002 ND 5.48 5.60 5.00 mg/L 108 111 2%
QC13100704 MS 1 Nitrite Nitrogen EPA 300.0 1310334-002 ND 0.514 0.523 0.500 mg/L 103 105 2%
QC13100704 MS 2 Nitrite Nitrogen EPA 300.0 1310356-001 ND 0.534 0.450 0.500 mg/L 107 90 17%
QC13100709 MS 1 Nitrate Nitrogen EPA 300.0 1310334-002 ND 2.21 2.26 2.00 mg/L 109 112 2%
QC13100709 MS 2 Nitrate Nitrogen EPA 300.0 1310356-001 1.83 4.02 4.04 2.00 mg/L 109 110 <1%
QC13100711 MS 1 Sulfate EPA 300.0 1310331-001 1026 1313 1306 10.0 mg/L 107 100 1%
QC13100711 MS 2 Sulfate EPA 300.0 1310334-002 3.18 13.2 13.4 10.0 mg/L 100 102 2%
QC13100846 MS 1 Uranium,Dissolved EPA200.8 1310338-001 ND 0.0118 0.0118 0.010 mg/L 107 107 <1%
Mercury,Dissolved EPA 200.8 1310338-001 ND 0.001042 0.000957 0.001 mg/L 96 88 9%
Antimony,Dissolved EPA 200.8 1310338-001 0.0097 0.0195 0.0191 0.010 mg/L 99 94 2%
Arsenic,Dissolved EPA 200.8 1310338-001 0.0424 0.0980 0.0963 0.050 mg/L 111 108 2%
Lead,Dissolved EPA 200.8 1310338-001 ND 0.0088 0.0089 0.010 mg/L 85 85 1%
Selenium,Dissolved EPA 200.8 1310338-001 ND 0.0473 0.0467 0.050 mg/L 89 88 1%
Thallium,Dissolved EPA 200.8 1310338-001 ND 0.0097 0.0095 0.010 mg/L 96 94 2%
QC13100882 MS 1 Ammonia,as Nitrogen SM 4500 NH3 1310319-002 0.248 1.19 1.18 1.00 mg/L 95 94 1%
QC13100913 MS 1 Aluminum,Dissolved EPA 200.7 1310338-001 0.270 1.51 1.54 1.00 mg/L 124 127 2%
Barium,Dissolved EPA 200.7 1310338-001 0.045 0.964 0.953 1.00 mg/L 92 91 1%
Beryllium,Dissolved EPA 200.7 1310338-001 ND 0.938 0.919 1.00 mg/L 94 92 2%
Bismuth,Dissolved EPA 200.7 1310338-001 ND 1.01 1.01 1.00 mg/I. 99 99 <1%
Boron,Dissolved EPA 200.7 1310338-001 0.101 1.05 1.03 1.00 mg/L 95 93 2%
Cadmium,Dissolved EPA 200.7 1310338-001 ND 0.941 0.923 1.00 mg/L 94 92 2%
Calcium,Dissolved EPA 200.7 1310338-001 48.1 60.0 59.0 10.0 mg/L 119 109 2%
Chromium,Dissolved EPA 200.7 1310338-001 ND 0.880 0.869 1.00 mg/L 88 87 1%
Cobalt,Dissolved EPA 200.7 1310338-001 ND 0.898 0.887 1.00 mg/L 90 88 1%
Copper,Dissolved EPA 200.7 1310338-001 ND 4.46 4.47 5.00 mg/L 89 89 <1%
Gallium,Dissolved EPA 200.7 1310338-001 ND 0.943 0.937 1.00 mg/L 94 94 1%
Iron,Dissolved EPA 200.7 1310338-001 0.335 1.29 1.30 1.00 mg/L 96 96 1%
Lithium,Dissolved EPA 200.7 1310338-001 ND 1.04 1.03 1.00 mg/L 99 98 1%
Magnesium,Dissolved EPA 200.7 1310338-001 9.54 19.5 19.4 10.0 mg/L 100 99 1%
Manganese,Dissolved EPA 200.7 1310338-001 0.182 1.09 1.08 1.00 mg/L 91 90 1%
Molybdenum,Dissolved EPA 200.7 1310338-001 ND 0.928 0.946 1.00 mg/L 92 94 2%
Nickel,Dissolved EPA 200.7 1310338-001 ND 4.55 4.46 5.00 mg/L 91 89 2%
Phosphorus,Dissolved EPA 200.7 1310338-001 ND 5.20 5.16 5.00 mg/L 98 98 1%
Potassium,Dissolved EPA 200.7 1310338-001 5.49 17.0 16.6 10.0 mg/L 115 111 2%
Scandium,Dissolved EPA 200.7 1310338-001 ND 0.905 0.903 1.00 mg/L 90 90 <1%
Silver,Dissolved EPA 200.7 1310338-001 ND 0.083 0.083 0.090 mg/L 91 91 <1%
Sodium,Dissolved EPA 200.7 1310338-001 24.2 36.0 35.2 10.0 mg/L 118 110 2%
Strontium,Dissolved EPA 200.7 1310338-001 0.267 1.23 1.24 1.00 mg/L 96 97 1%
Tin,Dissolved EPA 200.7 1310338-001 ND 0.885 0.887 1.00 mg/L 88 89 <1%
Titanium,Dissolved EPA 200.7 1310338-001 ND 0.909 0.915 1.00 mg/L 91 92 1%
Vanadium,Dissolved EPA 200.7 1310338-001 0.022 0.938 0.935 1.00 mg/L 92 91 <1%
Zinc,Dissolved EPA 200.7 1310338-001 0.022 0.978 0.955 1.00 mg/L 96 93 2%
QC13100938 MS 1 Total Kjeldahl Nitrogen EPA 351.2 1310358-001 ND 0.805 0.796 0.690 mg/L 102 101 1%
DF=Dilation Factor,RL=Reporting Limit,ND Not Detected or<RL Page 8 of 9
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