2008-07-08_HYDROLOGY - M2002004 ‎(2)‎

• Permit No: M2002004
• IBM Index Class Name: HYDROLOGY
• Doc Date: 7/8/2008
• Doc Name: First Quarter 2008 Groundwater Monitoring Report
• From: GCC Rio Grande, Inc.
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: AJW
• Media Type: D
• Archive: No

m w m w ¦w m w w so M w MM MM M M M w
Table 1. Result of Quarterly Monitoring, GCC Rio Grande, Inc. Red Rock Plant and Limestone Mine. Sampling conducted
March 25, 2008 and April 15, 2008.
Anal to Method Units Basic Std.' MW-002 MW-003 MW-004 DW-001 DW-002 DUP-01
DISSOLVE D METALS
Aluminum 200.7 ICP m /L 5.0(6) <0.10 <0.10 <0.10 <0.10 <0.10 <0.10
Barium 200.7 ICP m /L 2.0 0.0318 0.0111 0.0147 0.0170 0.0190 0.0189
Beryllium 200.7 ICP m /L 0.004 <0.00045 <0.00045 <0.00045 <0.00045 <0.00045 <0.00045
Boron 200.7 ICP m /L 0.75(6) 0.0749 0.0996 0.224 0.0613 0.0684 0.0664
Calcium 200.7 ICP m /L -- 186 252 288 77.4 83.1 83.2
Chromium 200.7 ICP m /L 0.1 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01
Cobalt 200.7 ICP m /L 0.05(6) <0.005 <0.005 <0.005 <0.005 <0.005 <0.005
Iron 200.7 ICP m /L 0.3(a) 0.116 <0.07 <0.07 0.813 2.16 2.15
Lithium 200.7 ICP m /L 2.5(6) 0.061 0.0783 0.163 0.104 0.103 0.103
Magnesium 200.7 ICP m /L -- 52.7 74.8 114 32.8 35.2 35.2
Manganese 200.7 ICP m /L 0.05(x) 0.529 <0.005 0.309 0.050 0.0635 0.0583
Nickel 200.7 ICP m /L 0.1 <0.030 <0.030 <0.030 <0.030 <0.030 <0.030
Potassium 200.7 ICP m /L -- 4.23 2.61 5.83 9.76 9.37 9.35
Silver 200.7 ICP m /L 0.05 <0.030 <0.030 <0.030 <0.030 <0.030 <0.030
Silicon 200.7 ICP m /L -- 12.6 13.7 12.4 9.44 9.84 9.89
Sodium 200.7 ICP m /L -- 99.3 153 219 72.6 70.7 70.2
Vanadium 200.7 ICP m /L 0.1(6) <0.010 <0.010 <0.010 <0.010 <0.010 <0.010
Zinc 200.7 ICP m /L 5.0(a) <0.030 <0.030 <0.030 <0.030 <0.030 <0.030

Antimony 200.8 ICP-MS m /L 0.006 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020
Arsenic 200.8 ICP-MS m /L 0.01 0.00274 <0.00200 <0.00200 0.00287 <0.00200 0.00207
Cadmium 200.8 ICP-MS m /L 0.005 <0.00050 <0.00050 <0.00050 <0.00050 <0.00050 <0.00050
Co er 200.8 ICP-MS m /L 1.0(a) <0.010 <0.010 <0.010 <0.010 <0.010 <0.010
Lead 200.8 ICP-MS m /L 0.05 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010
Selenium 200.8 ICP-MS m /L 0.05 0.00221 0.00475 0.122 <0.00200 <0.00200 <0.00200
Silver 200.8 ICP-MS m /L 0.05 <0.00020 <0.00020 <0.00020 <0.00020 <0.00020 <0.00020
Thallium 200.8 ICP-MS m /L 0.002 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100
Mercury E245.1 CV-AA m /L 0.002 <0.00002 <0.00002 <0.00002 <0.00002 <0.00002 <0.00002
1. Colorado Basic Standard for Groundwater - Human Health, Secondary Drinking Water(s), and Agricultural (b)