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

Copper <0.050 <0.050
Fluoride 0.80 1.2
Gallium <0.10 <0.10
Hardness,Total 63 78
Iron <0.010 <0.010
Lead <0.0025 <0.0025
Lithium <0.10 <0.10
Magnesium <0.50 <0.50
Manganese <0.0050 <0.0050
Mercury <0.00010 <0.00010
Molybdenum <0.010 <0.010
Nickel <0.010 <0.010
Nitrate as N 0.16 0.18
Nitrite as N 0.16 0.10
Nitrogen,Total 0.70 0.50
pH,stu 9.44 8.69
Phosphorus <0.50 <0.50
Potassium 6.2 6.0
Scandium <0.10 <0.10
Selenium <0.025 0.026
Silver <0.0050 <0.0050
Sodium 19 18
Strontium 0.46 0.57
Sulfate 51 72
Thallium <0.0010 <0.0010
Tin <0.10 <0.10
Titanium <0.10 <0.10
Total Dissolved Solids 170 200
Uranium <0.0050 <0.0050
Vanadium 0.057 0.031
Zinc <0.010 <0.010
Electrical Conductivity,'mhos/cm 260 300
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