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Home My WebLink AboutDRC-2009-003902 - 0901a068801403c6MC'.7iocq-oo3w:i Rio Algom Mining LLC September 3, 2009 Certified mail Return Receipt (7001 1940 OOOO 5346 4006) Mr. Dane L. Finerfrock, Director Division of Radiation Control Utah Department of Environmental Quality 168 North 1950 West POBox 144850 Salt Lake City, UT 84114-4850 •.'•'•*, • *. Xl I 7 ^ 7\ ^^ 7" .47 Re: License UT 1900481 Groundwater Stability Monitoring Report - V* Half 2009 Dear Mr. Finerfrock, Please find attached Rio Algom Mining LLC's groundwater stability monitoring report for the above referenced license for the 1 ^^ half of 2009. There was no exceedance to report for the sampling event. If you have any questions or need additional information, please call me at 505-287-8851 ext 15. Regards, Chuck Wentz ^ Radiation Safety Officer Environmental Department Supep/isor Attachment: As stated xc: L Morton (DRC) DOE-GJO file P.O. Box 218, Grants, NM USA 87020 - Tel: 505.287.8851 - Fax: 505.285.5550 Rio Algom Mining LLC September 3,2009 Certified mail Return Receipt (7001 1940000053464(06) Mr.Dane L.Finerfrock,Director Division of Radiation Control Utah Department of Environmental Quality 168 North 1950 West PO Box 144850 Salt Lake City,UT 84114-4850 Re:License UT1900481 Groundwater StabilityMonitoring Report-1st Half 2009 Dear Mr.Finerfrock, Please find attached Rio Algom Mining LLC's groundwater stability monitoring report for the above referenced license for the 1sthalf of 2009. There was no exceedance to report for the sampling event. If you have any questions or need additional information,please call me at 505-287-8851 ext 15. Regards, ~\;)~Chuck Wentz Radiation Safety Officer Environmental Department Supervisor Attachment:As stated xc:L.Morton (DRC) DOE-GJO file P.o.Box218,Grants,NM USA 87020 -Tel:505.287.8851 -Fax:505.285.5550 m CO)AJLCGCO)R/1IMIJINIIN CGJLJLCC JLJI§IB3~NJFACCJIJLJI1rY License UT 1900481 Semi-Annual Groundwater Stability Monitoring Report 1st Half 2009 September 3,2009 RIO ALGOM MINING LLC-LlSBON OPERATION Semiannual Groundwater Monitoring Report 1st Half 2009 Introduction: This reportmeetsthe requirementsof DRCLicense#UT 1900481,Condition 53 and presents the monitoring results of the groundwater sampling required by the Long Term Surveillance Monitoring Plan (LTSM)as required by Condition 53 of the License.This report contains the following elements: .A discussion and interpretation of the groundwater sampling results and concentration trends,Uranium Compliance limits or Uranium Target Action levels as stated in table 1,license condition 53 B. .Appendix 1 contains analytical data for the monitoring wells. .Appendix 2 presents the time versus concentration plots for required parameters .Appendix 3 contains the depth to water over time for the wells. .Appendix 4 contains the hydrographs for the wells. .Appendix 5 presents the field data sheets including the field parameter measurements. .Appendix 6 presents copies of the laboratory analytical reports for the 1st half of 2009. .Appendix 7 presents the groundwater contour maps. .Appendix 8 contains the sampling methodologies used to conduct the sampling. RioAlgom Mining LLC-Lisbon site 151Half 2009 Groundwater Monitoring Report Page 1 Discussion The data provided in this report represent sampling results from the 1st half of 2009. The required monitoring wells are listed below: Table 1 Monitoring Well Network The ACLs granted by the USNRC and accepted by the State of Utah apply to wells EF-3A and OWUT-9 are presented below: Table 2 Alternate Concentration Limits Reviewing the results from the current sampling event for P~C well EF-3A,none of the concentrations for the ACLs were approached,as demonstrated below. Table 3 Well EF-3A Results RioAlgom MiningLLC-Usbon site 1sl Half2009 Groundwater Monitoring Report Page 2 Well Identification (s)Purpose EF-3A,OWUT-9 PC wells MW-13,MW-5 Monitor background water quality RL-4,RL-5,RL-B POE wells EF-B,EF-8,ML-1,RL-1,RL-3,H-63,Trend wells LW-1 Alternate Concentration Limit for Constituent of Concern Well Aquifer U-Nat As Mo Se Identification Area mgll mQ/1 mg/l mQII EF-3A South 96.87 3.06 23.34 0.93 OWUT-9 North 101.58 2.63 58.43 0.10 U-Nat mgll As mg/l Mo mg/l Se mgll 23.3 0.079 1.40 0.035 Reviewing the results from the current sampling event for P~C well OWUT-9, none of the concentrations for the COCs were exceeded,as demonstrated below. Table 4 Well OWUT-9 Results In granting ACLs for the Lisbon Site the USNRC maintained the Background groundwater concentrations at the same level established in 1990 and they are as follows: Table 5 Background Concentrations Reviewing the results from the current sampling events for p~c background wells MW-13 and MW-5,the following concentrations were noted. Table 6 Background Well MW-13 and MW-5 Results All of the above reported concentrations,with the exception of Se in MW-5,are below the background concentrations.Review of the trending of the selenium concentration in this well shows a steady concentration of approximately 0.06 mg/l over the past 14 years.This level does not exceed the class III water standard for this aquifer. Wells RL-4,RL-5,and RL-6,located on the northern LTSM boundary,are used for monitoring Point of Exposure (POE)concentrations.The constituent of concern (COC)for the above POE wells,as stated in Table 2 of license condition 53 B,is U-Nat and the Uranium Compliance Limit is 0.32 mg/L.Table 7 presents the observed U-Nat concentration for the first and second quarters,verses the Uranium Compliance Limit.All of the POE wells are well below the 0.32 mgll health based standard. RioAlgom Mining lLC -Usbon site 1stHalf 2009 Groundwater Monitoring Report Page 3 U-Nat mg/l As mg/l Mo mgll Se mg/l 82.5 2.34 47.9 0.032 Background Groundwater Concentrations Well Aquifer U-Nat As Mo Se Identification Area mgll mg/l mgll Mg/l MW-13 South 0.02 0.066 0.05 0.01 MW-5 North 0.01 0.05 0.07 0.01 U-Nat mg/l As mgll Mo mg/l Se mg/l MW-13 0.0154 0.028 <0.1 0.008 MW-5 0.0070 <0.001 <0.1 0.069 Table 7 Uranium Concentrations -POE Wells Trend wells EF-6,EF-8,ML-1,RL-1,RL-3,H-63 and LW-1,located throughout the area to be transferred to the Department of Energy,are used for validation of the transport model prediction and trends.The constituent of concern for these wells is U-Nat as stated in Table 3 of license condition 53 B.The following table shows the comparison of the concentration found in these trend wells with the Uranium Target Action Levels.All uranium concentrations within these wells were below the target action level established within the license.The results for Monitor Well RL-1 are an average of four sample analyses.In August of 2009 the DRC approved RAM's proposed Uranium Target Action Level of 0.028 mg/L.The reported result of 0.0019 is well below the Action Level. Table 8 Uranium Concentrations-Trend Wells RioAlgom Mining llC -Usbon site 1,IHalf2009 Groundwater Monitoring Report Page 4 Observed U-Nat Uranium Compliance POE Well Concentration (mg/L)Limit (mg/L) RL-4 0.0044 0.32 RL-5 0.0025 0.32 RL-6.I 0.0189 0.32 Observed U-Nat Uranium Target Action Trend Well Concentration (mg/L)Levels (mg/L) EF-6 0.702 3.9 EF-8 0.105 0.30 ML-1 0.0142 0.26 RL-1 41.4 42.1 RL-3 17.4 37.3 H-63 0.0105 0.06 LW-1 0.0019 0.028 Appendix 1 Analytical Data For The Monitoring Wells RioAlgom MiningLLC-Usbon site 1stHalf2009 Groundwater Monitoring Report Page 5 Well EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-3A Date 02-Jan-90 26-Apr-90 19-Jul-90 09-0ct-90 15-Feb-91 06-May-91 30-Jul-91 26-Nov-91 12-Feb-92 24-Apr-92 10-Aug-92 04-Nov-92 14-Mar-93 14-Jun-93 09-Aug-93 09-Dec-93 18-Mar-94 03-0ct-94 12-Dec-94 30-Mar-95 17-May-95 28-Sep-95 03-Nov-95 07-Jun-97 07-Jun-97 05-Sep-97 23-Dec-97 31-Mar-98 17-Jun-98 17-Jul-98 04-Nov-98 26-Feb-99 09-Jun-99 28-Jul-99 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 64.23 6515 10.5 2868.6 1543.6 4776.2 13212 65.63 6513 9.15 2707 1466.7 4509 12660 74.07 6505 8.82 2439 1244 3786 9220 77.41 6502 8.82 2290 1160 3708 9892 78.85 6500 9.06 2363 1310 4059 11052 80.7 6498 9 2387 1247 3999 10860 82.76 6496 9.05 2368 1216 3914 10808 85.56 6493 8.82 2263 1157 3627 9335 86.93 6492 8.86 2281 1220 3758 10005 84.26 6495 9.19 2670 1558 4751 13308 82.62 6496 9.17 2894 1610 4902 13375 82.6 6496 9.04 2872 1570 4858 13013 81.94 6497 9.12 2947 1550 4621 13415 80.88 6498 9.02 2916 1529 4726 13240 83.48 6496 9.03 2248 1184 3677 9925 84.98 6494 9.1 2122 1184 3579 9564 86.3 6493 9.06 2159 1167 3670 9304 90.56 6488 9.14 3034 1209 3562 9260 144.28 6435 8.8 1901 926 2748 7240 129.8 6449 8.9 1913 876 2713 6894 92.31 6487 7.83 1881 641 2431 4236 141.66 6437 8.33 1662 728 2430 5636 0.484 123.76 6455 8.48 1683 738 2428 5620 112.02 6467 7.73 1071 714 1060 4068 112.02 6467 7.74 1071 719 1037 4024 112.98 6466 7.72 1068 704 1007 4056 0.194 110.18 6469 7.52 1098 675 1292 4124 106.56 6472 7.84 1096 665 1282 4020 0.121 106.59 6472 8.36 1112 665 1389 4516 107.39 6472 7.66 954 808 1506 2860 0.143 113.8 6465 7.69 1039 646 1467 4144 102.98 6476 7.74 1794 855 2091 6184 0.226 100.04 6479 8.01 1371 842 2158 5684 104.64 6474 7.67 991 644 1256 3784 1.61 1.95 2.3 0.92 0.17 16.52 15.8 17.4 7.17 5.89 2.54 2.47 2.58 4.34 2.7 0.01 2.03 0.19 0.077 0.057 0.048 0.055 0.1027 0.039 0.031 43.2 61.09 66.35 40.47 31.02 21.26 21.25 12.94 28.95 16.25 16.25 14.18 14.77 12.7 13.89 12.85 13 9.31 19.2 131.46 Well EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A EF-3A Date 10-Nov-99 27-Mar-OO 20-Jun-00 11-Sep-00 07-Nov-OO 12-Mar-01 21-May-01 16-Aug-01 16-0ct-01 16-Feb-02 25-Feb-02 08-Jun-02 18-Sep-02 10-Mar-03 06-May-03 06-May-03 3-Sep-03 3-Sep-03 17-Nov-03 22-Mar-04 1-Jul-04 16-Sep-04 16-Sep-04 17-Oec-04 3-Mar-05 23-Jun-05 23-Jun-05 30-Sep-05 10-Nov-05 23-Mar-06 25-Sep-06 14-0ec-06 19-Mar-07 11-Jun-07 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-3A Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 106.88 6472 7.8 938 635 1282 4084 11.52 108.28 6471 7.57 988 602 1236 3436 0.15 2.2 0 11.82 109.02 6470 7.52 942 602 1286 2860 12.56 109.75 6469 7.52 980 594 1162 3620 0.14 1.9 0.023 11.97 110.38 6469 7.98 915 596 1151 3732 11.23 113.75 6465 7.56 916 582 1133 3552 0.138 1.91 0.053 12.3 116.43 6463 7.49 854 598 1062 3340 9.1 120.96 6458 7.69 871 529 1078 3524 0.141 1.77 0.033 11.56 122.85 6456 7.92 802 566 1156 3112 10.04 121.96 6457 7.25 811 577 1839 3148 9.6 120.28 6459 7.79 893 601 1126 3792 0.12 1.48 0.025 10.9 132.9 6446 7.59 701 556 1029 3136 10.3 127.984 6451 7.51 832 541 1031 2984 0.166 1.54 0.027 10.8 120.9 6458 7.65 1265 795 1801 4480 0.0848 1.47 0.017 16.2 127.65 6451 7.22 1035 756 1937 4920 0.0921 1.64 0.024 16.5 127.65 6451 7.22 1041 756 1938 4764 0.0928 1.65 0.024 16.6 132.62 6446 7.35 643 534 1021 3520 0.0968 1.26 0.023 7.63 132.6 6446 7.36 599 550 1054 3540 0.0944 1.25 0.023 7.6 133.75 6445 7.44 766 526 856 2996 9.24 126.21 6453 7.26 1104 654 0.104 1.62 0.028 14.1 121.85 6457 7.19 1050 684 798 0.1 1.7 0.02 13.87 120.91 6458 6.96 1116 700 1934 0.1 1.9 0.002 14.77 120.91 6458 6.96 1119 704 0.1 1.9 0.03 16.25 118.37 6461 7.14 1094 697 1997 0.112 1.8 0.017 16.25 115.65 6463 7.26 1148 745 2083 0.1/0.128 2.02/2.04 0/0.021 16.7/17.73 109.9 6469 7.27 1180 690 2208 0.2 2.2 0.03 19.2 109.9 6469 7.27 1180 679 0.2 2.2 0.03 19.2 113.45 6466 6.92 906 730 2070 5160 0.011 1.8 0.016 17.2 111.7 6467 7.26 1192 675 2106 4940 0.2 2 0.03 13.29 108.83 6470 7.06 1074 656 2058 5260 0.1 1.7 0.02 14.77 107.63 6471 6.63 1070 691 2100 4950 0.116 1.7 0.02 17.7 105.86 6473 5.12 1090 653 2180 5170 0.166 2.09 0.028 19.5 101.82 6477 7.14 808 500 1350 3530 0.019 0.9 0.01 10.3 100.68 6478 7.1 848 511 1320 3530 0.033 1 0.005 11 Well EF-3A EF-3A EF-3A EF-3A EF-3A Date 20-Aug-07 25-0ct-07 6-Jun-08 16-0ct-08 25-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-3A Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 99.8 6479 7.37 869 522 1450 3510 0.0009 0.1 0.003 10.2 97.75 6481 7.83 1180 774 2430 5970 0.093 1.5 0.022 22.9 95.55 6483 7.22 1100 799 2610 5990 0.082 1.5 0.02 23.6 92.64 6486 7.34 1120 829 2530 5980 0.083 1.6 0.01 24.7 92.89 6486 7.25 1130 291 612 1740 0.079 1.4 0.035 23.3 Well OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT -9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT -9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well OW-UT-9 Date 04-May-90 23-Jul-90 17-Oct-90 30-Jan-91 23-Apr-91 15-Jul-91 20-Nov-91 21-Feb-92 01-May-92 12-Aug-92 26-0ct-92 07-Apr-93 11-Jun-93 06-Aug-93 13-Dec-93 22-Mar-94 09-Jun-94 30-Sep-94 12-Dec-94 30-Mar-95 17-May-95 28-Sep-95 03-Nov-95 29-Mar-96 30-Jun-96 09-Sep-96 27-Nov-96 18-Mar-97 27-Jun-97 05-Sep-97 05-Sep-97 23-Dec-97 31-Mar-98 17-Jun-98 Depthto Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 9.43 3986 1690 5317 16240 9.41 4184 1764 5387 17236 9.37 4002 1698 5449 17176 9.54 4032 1708 5375 17208 9.45 4030 1693 5393 17500 9.41 4122 1610 5535 18088 9.47 4338 1669 5632 17744 9.45 4390 1679 5924 18250 9.45 4427 1637 5684 18315 9.51 4587 1592 5943 18775 9.44 4644 1603 6021 19055 9.69 6101 1595 5782 18128 9.67 4908 1579 5962 19225 9.68 4617 1621 5826 20105 9.58 5181 1548 4811 20528 9.7 4699 1492 5124 20334 0.897 9.64 5013 1568 5146 20572 9.83 5190 1544 5206 20360 9.51 5388 1543 5520 20436 9.86 5057 1565 5536 20228 9.91 5061 1544 5540 19872 9.56 5729 1544 5260 18664 0.319 9.96 5814 1535 5284 18620 9.9 1522 5288 9.63 1485 7777 9.57 6268 1487 7716 9.31 6442 1508 7698 9.54 6300 1491 7627 9.46 6843 1593 7809 9.52 6571 1649 7754 9.53 6632 1639 7691 9.45 6273 1560 7874 9.59 6920 1565 7894 9.49 7335 1511 8969 132.78 128.5 116.62 128.47 125.49 132.23 130.54 120.41 128.37 128.6 89.4 121.35 126.8 125.18 125.39 123.85 132.84 125.96 132.72 6569 6573 6585 6573 6576 6570 6571 6581 6574 6573 6613 6581 6575 6577 6577 6578 6569 6576 6569 132.7 6569 129.72 6572 0.75 46.6 0.013 28.4 0.036 1.1 29.3 0.05 0.93 0.03229.6 31.1 0.018 1.19 35.4 0.016 18100 20348 19260 19028 19168 19120 27352 26992 27744 1.28 37.3 0.037 29.71.32 0.05 1.72 1.61 35 36.7 0.185 0.189 1.67 37.6 0.033 46.6 59.19 61.45 61.78 46.43 62.04 56.57 53.98 84.05 82.57 70.9 69.42 82.75 65 79.76 86.63 85.67 87.15 82.72 70.9 56.13 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well OW-UT-9 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) OW-UT-9 16-Jul-98 132.5 6569 9.51 6961 1468 7691 25390 1.49 39.1 0(.025)85.67 OW-UT-9 04-Nov-98 133 6569 9.42 7335 1477 9286 20276 79.76 OW-UT-9 26-Feb-99 9.48 8505 1399 8473 31864 1.86 43.9 0.029 69.43 OW-UT-9 26-Feb-99 9.48 8576 1399 8707 30572 1.9 39.5 0.046 73.86 OW-UT-9 09-Jun-99 131.38 6571 9.6 7740 1441 8875 30904 45.79 OW-UT-9 28-Jul-99 132.5 6569 9.61 7539 1479 9015 29236 2.5 47 0.192 81.24 OW-UT-9 10-Nov-99 132.3 6570 9.59 7495 1471 8967 30144 81.24 OW-UT-9 27-Mar-00 132.65 6569 9.49 7972 1467 8561 34016 1.7 52 0 63.52 OW-UT-9 20-Jun-00 124.61 6577 9.61 7520 1554 9352 34552 84.19 OW-UT-9 11-Sep-00 130 6572 9.54 7625 1495 8863 31868 2 47 0 76.81 OW-UT-9 11-Sep-00 130 6572 9.54 7377 1495 8980 31832 2 47 0 84.2 OW-UT-9 07-Nov-OO 132.78 6569 9.61 7993 1543 9359 32252 82.7 OW-UT-9 12-Mar-01 132.72 6569 9.5 7633 1494 9036 31580 1.79 38 0.033 98 OW-UT-9 21-May-01 133.41 6568 9.5 8259 1581 8422 31818 62.04 OW-UT-9 16-Aug-01 132.42 6569 9.72 8286 1263 9008 18420 0.215 51.9 0.04 19.2 OW-UT-9 16-0ct-01 132.75 6569 9.64 8206 1561 10498 32080 98.97 OW-UT-9 25-Feb-02 130.5 6571 9.5 8114 1670 9813 33180 2.02 47.6 0.045 90.25 OW-UT-9 25-Feb-02 130.5 6571 9.52 8145 1623 9805 32712 2.11 48.6 0.039 87.15 OW-UT-9 08-Jun-02 132.45 6569 9.51 7380 1606 16036 33480 96 OW-UT-9 18-Sep-02 133.03 6569 9.41 8553 1523 8753 34580 2.16 52.2 0.023 56.1 OW-UT-9 16-Dec-02 133.75 6568 9.23 7864 1664 9046 34380 66.5 OW-UT-9 10-Mar-03 133.07 6569 9.49 12747 1417 10632 34680 2.06 48.5 0.031 96.01 OW-UT-9 10-May-03 132 6570 9.63 8614 2394 10095 35172 2.19 50.6 0.034 88.1 OW-UT-9 3-Sep-03 OW-UT-9 18-Nov-03 124.85 6577 9.39 9011 1393 10572 35452 87.4 OW-UT-9 22-Mar-04 123.89 6578 9.14 0 1346 1.1 53.9 0.029 29.8 OW-UT-9 1-Jul-04 123.5 6578 9.44 9206 1440 2.6 51.4 0.04 83.01 OW-UT-9 21-Sep-04 124.62 6577 9.79 9245 1408 3.1 60.4 0.02 78.28 OW-UT-9 18-Dec-04 123.62 6578 9.03 8653 1389 2.78 55.8 0.019 87.15 OW-UT-9 17-Feb-05 133 6569 9.6 2.44 47 0.027 84.7 OW-UT-9 17-F eb-05 133 6569 9.6 2.26 44 0.027 81.9 OW-UT-9 17-F eb-05 133 6569 9.6 2.31 49.73 0.015 80.44 OW-UT-9 17-Feb-05 133 6569 9.6 2.28 49.68 0.014 81.33 OW-UT-9 3-Mar-05 122.98 6579 9.8 8966 1410 1.96/2.54 40/52 010.09 79/84.20 Well OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT-9 OW-UT -9 OW-UT-9 OW-UT-9 Date 3-Mar-05 23-Jun-05 30-Sep-05 30-Sep-05 10-Noy-05 10-Noy-05 24-Mar-06 24-Mar-06 29-Sep-06 14-Dec-06 20-Mar-07 12-Jun-07 21-Aug-07 25-0ct-07 7-Jun-08 16-0ct-08 25-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well OW-UT-9 Depthto Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic MolybdeumSelenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 122.98 6579 9.8 8730 1416 1.85/2.43 38/48.5 0/0.0880.9/79.76 123.66 6578 9.49 9650 1343 3.1 56.2 0.04 90.1 124.36 6578 9.58 10200 1420 11000 35100 0.007 53.2 0.03 82.3 124.36 6578 9.58 9810 1390 10600 35700 2.67 54 <1.0 81.6 123 6579 9.5 8417 1340 11310 37500 2.6 42 0.08 88.63 123 6579 9.5 8054 1335 11347 37940 2.8 46.6 0.05 88.63 122.59 6579 9.51 25294 1301 11281 37360 2.3 40.3 0.08 73.86 122.59 6579 9.51 25879 1292 11297 37920 2.5 41.9 0.06 73.86 123.98 6578 9.34 2880 1490 11200 35400 1.92 34.1 0.02 56.2 123.78 6578 9.37 16100 1390 10800 36200 2.09 35.8 0.02 59.2 122.43 6579 9.7 11500 1250 9550 31600 2.2 43.3 0.05 63.7 122.55 6579 9.7 4550 1260 9500 31800 2.43 46.8 0.04 77.5 122.5 6579 9.71 11900 1190 9990 31100 2.22 41.4 0.04 70.9 122.24 6580 9.99 12200 1420 11400 37000 2.98 51.3 0.04 80.3 123.57 6578 9.77 14000 1460 11400 36500 2.18 50.5 0.024 92.4 122.37 6580 9.76 7800 1560 11100 36800 2.31 47.8 -0.01 83.6 123.36 6579 9.83 8410 1220 9520 34900 2.34 47.9 0.032 82.5 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-13 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) MW-13 04-Aug-87 89.94 6549 7.37 56 162 662 0.005 0.003 MW-13 18-Aug-87 89.9 6549 7.44 0.005 0.008 MW-13 02-Sep-87 90.07 6549 7.47 0.035 0.019 MW-13 16-Sep-87 90.07 6549 7.43 0.021 0.001 MW-13 30-Sep-87 90.17 6549 7.45 0.023 0.006 MW-13 15-0ct-87 90.25 6549 7.41 92 179 519 0.023 0.01 0.001 MW-13 05-Nov-87 90.11 6549 7.5 0.005 0.001 MW-13 11-Nov-87 90.21 6549 7.3 0.008 0.001 MW-13 25-Nov-87 90.07 6549 7.79 0.008 0.001 MW-13 09-Dec-87 89.96 6549 7.39 0.005 0.001 MW-13 14-Jan-88 89.86 6549 7.78 110 171 515 0.005 0.001 MW-13 25-Jan-88 89.83 6549 7.59 0.005 0.001 MW-13 26-Feb-88 89.71 6549 7.66 0.007 0.001 MW-13 01-Mar-88 88.37 6550 7.43 0.005 0.001 MW-13 01-Apr-88 89.2 6550 7.57 39 151 530 0.013 0.001 MW-13 01-May-88 89.5 6549 7.47 0.005 0.001 MW-13 09-Jun-88 90.25 6549 7.57 0.005 0.1 0.001 MW-13 23-Jun-88 89.36 6549 7.43 0.005 0.1 0.003 MW-13 08-Jul-88 89.44 6549 7.44 0.009 0.1 0.001 MW-13 05-Aug-88 89.42 6549 7.4 0.005 0.1 0.001 MW-13 19-Aug-88 89.52 6549 7.52 0.005 0.2 0.001 MW-13 31-May-89 90.12 6549 7.5 252 57 144 MW-13 01-Aug-89 90.35 6548 7.6 247 42 148 MW-13 07-Sep-89 90.28 6549 7.58 248 42 133 MW-13 13-Sep-89 90.38 6548 7.34 241 72 162 MW-13 12-0ct-89 90.33 6548 7.58 247 15 142 MW-13 01-Nov-89 90.48 6548 7.7 239 19 147 MW-13 23-Apr-90 90.41 6548 7.44 248 58 140 MW-13 17-Jul-90 90.6 6548 7.17 251 36 134 MW-13 04-0ct-90 91.12 6548 7.32 250 42 128 MW-13 28-Jan-91 90.96 6548 7.43 235 50 128 MW-13 16-Apr-91 91.16 6548 7.49 246 29 135 MW-13 16-Jul-91 91.35 6547 7.59 253 37 137 MW-13 24-Nov-91 91.55 6547 7.4 251 29 146 423 449 508 452 502 462 378 454 442 444 452 442 Well MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 MW-13 Rio Algom Mining LLC-Lisbon Operation Historical Groundwater Data Monitoring Well MW-13 Date 06-Feb-92 20-Apr-92 05-Aug-92 28-0ct-92 06-Mar-93 13-Jun-93 09-Aug-93 09-Dec-93 17-Mar-94 07-Jun-94 28-Sep-94 14-Dec-94 27-Mar-95 18-May-95 25-Sep-95 04-Nov-95 23-Mar-96 24-Jun-96 11-Sep-96 05-Dec-96 20-Mar-97 25-Jun-97 20-Sep-97 29-Dec-97 26-Mar-98 17-Jun-98 16-Jul-98 16-Jul-98 05-Nov-98 10-Jun-99 30-Jul-99 30-Jul-99 08-Nov-99 28-Mar-00 Depthto Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 91.61 6547 7.52 250 20 139 482 91.75 6547 7.57 252 29 131 444 91.83 6547 7.64 259 39 133 424 91.87 6547 7.47 248 33 135 430 92.13 6547 7.48 248 30 130 450 91.41 6547 7.51 250 30 126 456 91.7 6547 7.56 270 35 132 446 0.0157 91.88 6547 7.58 225 34 134 448 92 6547 7.63 238 24 160 476 0.023 91.74 6547 7.56 226 20 156 496 92.07 6547 7.4 257 19 162 512 0.029 92.17 6547 7.37 243 19 158 508 91.74 6547 7.37 242 25 165 512 0.015 92.36 6546 7.32 230 24 146 480 92.51 6546 7.28 234 19 126 308 96.6 6542 7.27 214 15 112 312 92.29 6547 7.41 10 106 92.65 6546 7.08 63 118 91.8 6547 7.66 251 54 106 92.9 6546 7.61 255 39 123 92.51 6546 7.49 236 43 113 92.09 6547 7.52 250 41 124 92.14 6547 7.49 255 24 116 90.64 6548 7.9 252 29 133 92.51 6546 7.66 268 26 127 92.75 6546 7.58 248 24 126 92.9 6546 7.48 249 111 92.9 6546 7.48 246 103 93.12 6546 7.53 252 23 158 92.46 6546 7.04 239 37 146 92.6 6546 7.47 241 23 121 92.6 6546 7.47 244 23 113 92.8 6546 7.16 247 14 119 93.84 6545 7.44 249 29 150 468 468 544 372 760 480 508 312 452 476 608 748 400 420 192 560 0.02 0.016 0.017 0.023 0.02 0.023 0.015 0.016 0.02 0.02 0.023 0.023 0.025 0.026 0.028 0.017 0.02 0.022 0.022 0.019 0.024 0.026 0.027 0.031 0.03 0.031 0.005 0.006 0.005 0.005 0.006 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.001 0 0.004 0.01 0.01 0.007 0.03 0.018 0.028 0.02 0.01 0.02 0.02 0.03 0.019 0.021 0.022 0.02 0.01 0.02 0.02 0.02 0.024 0.02 0.02 0.02 0.01 0.02 0.02 0.072 0.024 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-13 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) MW-13 22-Jun-00 93.11 6546 7.51 239 29 142 684 0.019 MW-13 20-Sep-00 93.13 6546 7.42 222 23 121 912 0.022 0.032 0 0.027 MW-13 13-Nov-00 93.32 6545 7.88 238 24 102 804 0.022 MW-13 14-Mar-01 93.8 6545 7.6 255 19 133 628 0.022 0.031 0.002 0.0035 MW-13 22-May-01 93.49 6545 7.47 250 34 97 258 0.026 MW-13 15-Aug-01 95.36 6543 7.4 253 41 109 324 0.023 0.03 0.007 0.03 MW-13 17-0ct-01 93.71 6545 7.43 250 9 124 588 0.049 MW-13 26-Feb-02 93.85 6545 7.4 223 59 135 332 0.0346 0.0237 0.008 0.025 MW-13 06-Jun-02 93.75 6545 7.63 248 34 144 300 0.04 MW-13 19-5ep-02 93.77 6545 7.41 232 15 153 822 0.0207 0.0285 0.004 0.029 MW-13 19-Dec-02 84.66 6554 7.67 252 35 137 644 0.027 MW-13 11-Mar-03 93.83 6545 7.64 250 9 167 760 0.021 0.0276 0.004 0.03 MW-13 06-May-03 94.03 6545 7.41 239 5 120 752 0.0214 0.0267 0.006 0.026 MW-13 29-Sep-03 94.17 6545 7.54 240 19 82 720 0.0211 0.0283 0.005 0.03 MW-13 17-Nov-03 94.04 6545 7.41 241 9 98 n/a 0.038 MW-13 17-Nov-03 94.02 6545 7.41 241 9 105 520 0.04 MW-13 24-Mar-04 94.13 6545 7.27 249 27 0.0214 0.0295 0.05 0.035 MW-13 29-Jun-04 94.41 6544 6.99 260 31 0.02 0.03 0.006 0.023 MW-13 15-Sep-04 95.61 6543 7.05 249 6 0.02 0.03 0.006 0.002 MW-13 15-Sep-04 95.61 6543 7.05 246 4 0.02 0.03 0.004 0.002 MW-13 16-Dec-04 95.61 6543 7.21 250 11 0.0201 0.0243 0.004 '.021/0.021 MW-13 2-Mar-05 92.29 6547 6.99 249 9 0.0187/0.0197).0226/0.0248),005/0.008'.019/0.021 MW-13 22-Jun-05 94.38 6544 7.44 240 31 0.02 0.02 0.009 0.015 MW-13 28-Sep-05 96.37 6542 7.1 200 32 160 480 <0.0005 0.0188 0.008 0.0167 MW-13 9-Nov-05 94.22 6545 7.51 248 34 172 344 0.02 0.02 0.01 0.015 MW-13 22-Mar-06 93.65 6545 7.49 250 33 152 504 0.02 0.03 0.008 0.015 MW-13 25-Sep-06 96.1 6543 7.65 237 21 139 416 0.0223 0.0249 0.007 0.0207 MW-13 13-Dec-06 95.1 6544 7.49 237 22 151 462 0.0234 0.0254 0.007 0.02 MW-13 20-Mar-07 91.96 6547 7.68 239 25 157 488 0.022 -0.1 0.007 0.0216 MW-13 12-Jun-07 92.09 6547 7.63 238 25 150 474 0.023 -0.1 0.008 0.0232 MW-13 21-Aug-07 92.23 6547 7.96 247 23 159 482 0.023 -0.1 0.007 0.0362 MW-13 25-0ct-07 91.7 6547 8.02 237 60 167 541 0.027 -0.1 0.01 0.0116 MW-13 6-Jun-08 93.27 6546 7.53 225 55 165 545 0.026 -0.1 0.008 0.0142 MW-13 15-0ct-08 91.5 6547 7.62 230 55 167 542 0.026 -0.1 0.009 0.0124 Well MW-13 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-13 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 24-Mar-09 94.05 6545 7.51 242 51 158 527 0.028 <0.1 0.008 0.0154 Well MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-5 Date 23-Apr-90 17-Jul-90 04-0ct-90 28-Jan-91 16-Apr-91 16-Jul-91 24-Nov-91 06-Feb-92 20-Apr-92 04-Aug-92 28-0ct-92 05-Mar-93 13-Jun-93 07-Aug-93 06-Dec-93 15-Mar-94 07-Jun-94 27-Sep-94 13-Dec-94 27-Mar-95 18-May-95 25-Sep-95 04-Nov-95 23-Mar-96 26-Jun-96 11-Sep-96 02-Dec-96 19-Mar-97 19-Mar-97 25-Jun-97 20-Sep-97 26-Dec-97 26-Mar-98 17-Jun-98 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 149.84 6592 7.17 322 38.9 249 676 0.001 0.05 0.01 150.02 6592 7.23 325 41 250 648 0.002 0.05 0.013 150.76 6591 7.05 327 61 260 708 149.98 6592 7.22 315 315 283 714 0.001 150 6592 7.13 325 37 295 740 150.36 6592 7.15 331 27 296 746 0.005 150.46 6592 6.96 329 29 314 150.16 6592 7.11 333 15 305 150.19 6592 7.16 321 29 308 150.46 6592 7.17 332 34 324 150.3 6592 7.13 326 24 335 150.67 6591 7.1 324 30 326 150.57 6591 7.08 326 40 306 150.56 6591 7.22 329 40 304 150.27 6592 7.16 313 29 367 152.63 6589 7.06 340 29 389 152.27 6590 7.09 327 25 387 151.59 6590 6.93 333 24 390 151.44 6591 6.95 312 24 348 151.28 6591 6.87 321 29 345 150.72 6591 6.94 317 29 348 151.24 6591 6.84 321 24 345 152.75 6589 6.89 297 19 348 152.75 6589 6.82 19 340 150.33 6592 7.01 34 433 150.53 6591 7.12 316 24 422 150.76 6591 7 326 30 426 152.14 6590 7.06 323 29 430 152.14 6590 7.06 324 34 441 150.6 6591 7.09 316 19 437 150.75 6591 7.04 325 19 406 153.87 6588 7.69 308 57 486 151.52 6590 7.14 332 57 480 150.98 6591 7.01 321 24 532 740 784 798 760 788 868 800 862 840 868 840 832 816 828 856 864 696 932 708 1030 1048 1036 1236 1124 1168 892 0.002 0.001 0.002 0.0021 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.005 0.05 0.05 0.001 0.001 0.001 0.005 0.005 0.005 0.005 0 0 0.005 0.005 0.005 0.005 0.005 0.013 0.024 0.032 0.032 0.023 0.028 0.039 0.036 0.042 0 0.042 0 0.42 0.001 0.005 0.005 0.001 0.003 0.003 0.002 0.004 0.0004 0.009 0.01 0.01 0.01 0.01 0.01 0.009 0.002 0.001 0.01 0.01 0.01 0.03 0.013 Well MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 MW-5 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-5 Date 16-Jul-98 05-Nov-98 01-Mar-99 09-Jun-99 29-Jul-99 08-Nov-99 28-Mar-00 21-Jun-00 13-Sep-00 08-Nov-00 13-Mar-01 21-May-01 15-Aug-01 17-Oct-01 26-Feb-02 06-Jun-02 19-5ep-02 18-0ec-02 10-Mar-03 06-May-03 30-Sep-03 24-Mar-04 29-Jun-04 15-Sep-04 16-0ec-04 2-Mar-05 22-Jun-05 28-Sep-05 9-Nov-05 22-Mar-06 25-Sep-06 13-0ec-06 19-Mar-07 12-Jun-07 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 154.11 6588 6.88 313 13 498 816 0.005 0.005 0.005 0.01 151.47 6591 7.07 333 28 517 1008 0.01 150.63 6591 7.26 314 5 444 1168 0.005 0.005 0.005 0.01 150.5 6592 7.1 308 28 548 1268 0.03 150.76 6591 6.95 305 47 542 1376 0.001 0.001 0.005 0.01 150.88 6591 6.88 315 19 517 556 0.011 150.52 6591 6.9 318 19 565 1276 0.002 0.005 0.01 0.013 150.85 6591 7.02 314 19 548 1596 151.5 6591 6.82 318 23 552 1064 0.005 151.65 6590 7.2 303 24 536 1476 151.72 6590 7.43 309 15 568 1528 0.0001 151.78 6590 7.11 313 24 559 1234 152.13 6590 7.19 332 15 537 1236 0.0009 152.6 6589 7.54 303 18 583 1308 153.78 6588 6.97 294 17 547 1180 0.0011 151.19 6591 7.06 312 24 602 1452 153.14 6589 7 314 15 599 1396 0.001 152.57 6589 7.12 303 36 631 1064 153.02 6589 6.98 308 19 663 1412 152.88 6589 6.91 306 5 631 1520 153.75 6588 6.86 313 10 1006 1524 153.75 6588 6.83 317 11 153.92 6588 6.57 338 20 156.48 6586 6.4 310 11 156.55 6585 6.26 315 25 154.87 6587 6.98 308 11 155.25 6587 7.13 317 10 156.31 6586 6.78 256 12 155.21 6587 6.98 310 18 153.81 6588 7 308 22 155.46 6587 6.43 308 11 155.24 6587 6.91 298 14 154.05 6588 6.55 298 12 153.34 6589 8.03 20 11 690 705 663 650 735 744 722 0.0005 NO NO NO NO 0/0.0018 NO 1300 0.0016 1236 <0.0005 1328 NO 1290 -0.0005 1330 -0.0005 1380 -0.001 1350 -0.001 0.003 0.005 0.0001 0.001 0.0032 0.012 0.001 0.063 0.001 0.062 0.0008 0.0062 0.061 0.0021 0.05 NO 0.058 0.0009 0.06 NO 0.06 NO 0.051 0.0004/NO ).059/0.061 NO 0.07 <0.0005 0.075 <0.00005 0.07 NO 0.07 0.0005 0.051 -0.0005 0.062 -0.1 0.066 -0.1 0.071 0.022 0.013 0.0121 0.011 0.013 0.009 0.024 0.011 0.016 0.007 0.015 0.008 NO NO NO 0.007/NO NO 0.0067 0.006 0.007 0.0074 0.008 0.0082 0.0099 Well MW-5 MW-5 MW-5 MW-5 MW-5 Date 21-Aug-07 23-0ct-07 3-Jun-08 14-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well MW-5 Depthto Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 153.37 6589 8.17 315 23 762 1370 -0.001 -0.1 0.069 0.0458 154.39 6588 7.37 317 11 732 1360 -0.001 -0.1 0.07 0.0106 153.84 6588 7.13 292 12 751 1390 -0.001 -0.1 0.066 0.009 153.09 6589 7.21 302 12 732 1390 -0.001 -0.1 0.064 0.0075 153.72 6588 7.2 317 10 738 1350 <0.001 <0.1 0.069 0.0070 Well RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 RL-4 Date 07-May-03 30-Sep-03 18-Nov-03 25-Mar-04 29-Jun-04 15-Sep-04 16-0ec-04 2-Mar-05 22-Jun-05 22-Jun-05 28-Sep-05 8-Nov-05 8-Nov-05 22-Mar-06 25-Sep-06 13-0ec-06 19-Mar-07 11-Jun-07 20-Aug-07 24-0ct-07 3-Jun-08 14-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Oata Monitoring Well RL-4 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(sou.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 154.92 6525 7.44 227 37 132 348 0 0.0016 0.005 0.004 151.02 6529 7.49 228 29 70 1036 NO 0.0007 0.002 0.004 155.45 6524 7.25 210 37 94 492 0.005 155.21 6525 7.3 208 42 NO 0.0013 NO 0.004 155.25 6525 6.84 220 54 0.0006 0.002 0.005 NO 156.75 6523 7.18 216 43 NO 0.002 0.003 NO 156.56 6523 6.93 217 28 0.0008 NO 0.005 NO 156.18 6524 7.21 217 32 0 0.0011 0.004 0.004 156.84 6523 7.61 219 23 0.0006 0.001 0.006 NO 156.84 6523 7.61 223 35 0.0006 0.001 0.006 NO 157.5 6522 6.99 177 46 160 510 <0.0005 0.0013 0.005 0.0029 156.7 6523 7.53 216 51 149 296 0.0008 0.001 0.006 0.003 156.7 6523 7.53 220 51 162 424 0.0009 0.001 0.006 0.003 155.41 6524 7.47 208 39 124 540 NO 0.001 0.006 0.004 157.36 6523 7.04 213 44 155 460 -0.0005 0.0014 0.005 0.0036 157.25 6523 7.24 454 43 167 510 -0.0005 0.0014 0.005 0.004 155.41 6524 7.41 210 43 165 520 -0.001 -0.1 0.005 0.0108 155.5 6524 7.61 85 45 161 508 -0.001 -0.1 0.006 0.0106 155.48 6524 7.92 220 45 173 506 -0.001 -0.1 0.006 0.067 155.67 6524 7 219 44 159 487 -0.001 -0.1 0.005 0.0079 156.67 6523 7.54 203 45 163 512 NO NO 0.005 0.0045 155.44 6524 7.58 209 44 156 498 0.002 NO 0.007 0.0034 156.81 6523 7.58 219 42 146 506 <0.001 <0.1 0.005 0.0044 Well RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 RL-5 Date 07-May-03 30-Sep-03 18-Nov-03 25-Mar-04 16-0ec-04 16-0ec-04 2-Mar-05 2-Mar-05 22-Jun-05 27-Sep-05 27-Sep-05 8-Nov-05 22-Mar-06 22-Mar-06 25-Sep-06 13-0ec-06 19-Mar-07 11-Jun-07 20-Aug-07 24-0ct-07 3-Jun-08 14-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well RL-5 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 150.52 6534 7.39 233 5 91 344 0 0.001 0.004 0.003 155.21 6529 7.33 209 49 97 632 0.0009 0.0021 0.003 0.005 151.09 6534 7.24 239 9 55 472 0.004 150.09 6535 7.3 243 15 NO 0.0022 NO 0.004 152.15 6533 6.96 238 15 0.0008 0.0007 0.002 NO 152.15 6533 6.96 238 19 0.0007 0.001 0.001 NO 151.97 6533 7.23 236 21 0/0.0011 0.001 0.003 NO 151.97 6533 7.23 227 23 0 0.0012 0.002 NO 152.02 6533 7.53 236 21 0.0007 0.002 0.003 NO 153.04 6532 7.95 188 17 110 350 <0.0005 0.0007 0.004 0.0021 153.04 6532 7.95 187 18 110 360 <0.0005 0.0006 0.004 0.0021 152 6533 7.5 241 24 136 356 0.0009 0.0007 0.005 0.003 151.43 6533 7.32 233 29 131 384 NO 0.001 0.005 0.006 151.43 6533 7.32 233 29 134 444 NO 0.002 0.005 0.006 153.1 6532 7.25 222 22 114 354 -0.0005 0.0021 0.003 0.0042 153.5 6531 7.49 481 17 114 394 0.0018 0.0208 0.003 0.036 150.96 6534 7.46 205 19 108 370 -0.001 -0.1 0.004 0.0069 151.02 6534 7.68 81 17 104 384 -0.001 -0.1 0.003 0.0229 151.04 6534 8.12 218 19 112 372 -0.001 -0.1 0.004 0.184 151.25 6533 7.7 238 23 117 386 -0.001 -0.1 0.005 0.0076 152.03 6533 7.71 223 17 113 408 -0.001 NO 0.003 0.0037 150.95 6534 7.58 227 16 109 380 -0.001 -0.1 0.003 0.0027 152.25 6532 7.67 236 14 98 382 <0.001 <0.1 0.003 0.0025 Well RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 RL-6 Date 22-Mar-04 29-Jun-04 21-Sep-04 15-Dec-04 2-Mar-05 20-Jun-05 27-Sep-05 7-Nov-05 22-Mar-06 25-Sep-06 13-Dec-06 19-Mar-07 11-Jun-07 20-Aug-07 24-0ct-07 3-Jun-08 15-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well RL-6 Depthto Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic MolybdeumSelenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 13.24 6447 7.09 342 20 0.003 0.0172 0.013 0.027 12.66 6447 8.82 5 0 NO 0.004 NO NO 14.31 6446 8.52 349 43 0.002 0.05 0.008 0.004 13.87 6446 7.59 340 17 0.002 0.0238 0.008'.028/0.029 14.22 6446 7.36 330 23 0.0014/0.0016 0.019/0.0239 ).006/0.009'.023/0.025 14.54 6445 7.52 318 35 0.002 0.03 0.009 0.025 16.65 6443 7.69 243 234 490 990 0.0017 0.247 0.0005 0.0174 6460 7.03 351 49 936 1744 0.002 0.05 0.01 0.03 6447 7.65 317 47 941 1736 0.002 0.02 0.01 0.03 6443 8.02 326 43 812 1600 0.0022 0.021 0.007 0.0391 6444 8.46 312 42 750 1590 0.0017 0.0152 0.006 0.022 6445 7.32 307 39 910 1660 0.002 -0.1 0.009 0.0393 6447 7.7 122 37 913 1670 0.002 -0.1 0.01 0.0264 6445 7.91 328 42 996 1750 0.002 -0.1 0.01 0.0905 6445 7.06 335 36 933 1690 0.002 -0.1 0.01 0.0237 6445 6.97 299 37 969 1750 0.002 -0.1 0.008 0.0222 6445 7.35 316 33 916 1720 0.0032 -0.1 0.009 0.0204 6444 7.31 319 31 919 1690 0.001 <0.1 0.008 0.0189 12.72 16.96 15.9 15.5 13.29 14.88 14.65 14.94 15.27 15.82 Well EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-6 Date 12-Jan-90 09-May-90 25-Jul-90 10-0ct-90 14-Feb-91 24-Apr-91 25-Jul-91 26-Nov-91 13-Feb-92 27-Apr-92 06-Aug-92 04-Nov-92 07-Mar-93 14-Jun-93 10-Aug-93 10-Dec-93 17-Mar-94 08-Jun-94 28-Sep-94 14-Dec-94 28-Mar-95 18-May-95 26-Sep-95 04-Nov-95 26-Mar-96 30-Jun-96 11-Sep-96 05-Dec-96 20-Mar-97 25-Jun-97 20-Sep-97 29-Dec-97 26-Mar-98 18-Jun-98 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 53.79 6514 7.06 644 512 1043 2932 55.53 6512 6.92 595 491 1566 2648 58.99 6509 6.81 514 500 954 2832 61.54 6506 6.78 627 472 1073 2902 64.53 6503 6.87 603 422 1047 2844 65.84 6502 6.92 627 421 1052 2874 67.47 6501 6.87 615 444 1053 3032 70.17 6498 6.89 632 478 1075 2976 71.31 6497 6.93 650 480 1089 2990 71.39 6497 6.92 579 461 998 2634 70.31 6498 7.02 590 395 1038 2660 70.1 6498 6.83 587 380 1035 2682 70.17 6498 6.86 593 410 976 2530 69.05 6499 6.86 570 420 1014 2584 68.82 6499 7.05 549 388 1048 2504 0.0124 69.91 6498 6.93 562 427 954 2600 71.22 6497 6.99 577 402 1009 2644 0.008 72.3 6496 6.9 591 427 1041 2616 72.91 6495 6.67 647 437 1030 2628 0.005 74.1 6494 6.84 615 444 1016 2592 78.34 6490 6.79 301 460 1055 2672 0.006 76.6 6491 6.73 293 427 988 2596 77.8 6490 6.49 561 447 863 2308 0.009 6.78 557 427 872 2288 6.71 405 880 7.67 463 928 6.93 531 113 941 6.93 528 113 936 6.88 501 145 967 6.97 489 432 751 6.94 471 419 740 7.32 479 404 739 7.11 315 409 727 7.18 533 355 726 79.7 81.82 80.68 80.7 81.22 81.96 83.96 84.67 84.6 85.23 6488 6486 6487 6487 6487 6486 6484 6483 6483 6483 0.01 0.009 2572 2440 2536 2140 2412 2140 2104 1852 0 0.013 0.012 0.005 0.005 0.005 0.005 0.017 0.009 0.012 0.015 0 0.013 0 0.011 0 0 0.012 0 0.012 0 0.014 0 1.87 2.4 2.29 2.17 2.01 2.22 2.54 2.32 3.96 2.93 2.66 2.51 2.07 2.36 2.07 1.92 1.92 1.77 1.62 1.48 Well EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 Date 16=JUi-98 06-Nov-98 01-Mar-99 10-Jun-99 30-Jul-99 08-Nov-99 29-Mar-00 22-Jun-00 22-8ep-00 13-Nov-00 14-Mar-01 22-May-01 15-Aug-01 18-0ct-01 27-Feb-02 06-Jun-02 20-Sep-02 19-0ec-02 11-Mar-03 08-May-03 1-0ct-03 19-Nov-03 26-Mar-04 30-Jun-04 16-Sep-04 17-Oec-04 3-Mar-05 22-Jun-05 29-Sep-05 9-Nov-05 23-Mar-06 25-Sep-06 14-0ec-06 20-Mar-07 Rio Algom Mining LLC-Lisbon Operation Historical Groundwater Data Monitoring Well EF-6 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(sou.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 84.08 6484 6.87 440 651 625 2004 0 0 0.01 1.48 86.23 6482 6.95 439 379 777 2120 1.6 84.75 6483 7.21 412 350 659 1868 0.017 0 0.013 1.33 86.32 6482 6.97 210 365 638 2072 1.24 85.22 6483 6.86 428 374 739 1352 0.013 0.002 0.012 1.32 83.84 6484 6.92 415 341 698 1212 1.27 8539 6483 6.95 405 379 693 1944 0.013 0 0 1.152 85.5 6483 6.92 387 359 641 2016 1.34 87.32 6481 6.96 402 362 611 2400 0.011 0 0.011 1.33 87.37 6481 7.02 393 366 613 2164 1.23 88.46 6480 7.12 412 359 632 1876 0.0145 0.0038 0.004 1.28 88.8 6479 6.92 420 381 630 2030 1.42 89.65 6478 6.79 423 379 639 2328 0.016 0.003 0.002 1.48 90.74 6477 7.01 430 409 674 2032 1.65 93.48 6475 6.82 427 415 683 2056 0.0139 0,0017 0.014 1,31 95,2 6473 6.88 417 453 684 1996 1.37 94.91 6473 6.94 433 347 657 1752 0.0136 0,0009 0.014 1.34 97.37 6471 6.98 414 425 668 1844 1.25 97,77 6470 6.91 348 345 688 2224 0,0127 0 0.011 1.23 97.91 6470 6.9 372 388 645 1720 0.0121 0,0011 0.013 1.08 99.52 6468 6.69 360 354 525 2308 0,0119 0,005 0.013 0.96 100.44 6468 6.89 365 344 257 1660 0,296 102.02 6466 6.95 355 440 0.012 0,0024 0.012 0.783 103,18 6465 6.97 346 398 0.01 0,002 0.01 0.766 102.21 6466 7.04 359 304 0.01 0.0006 0.001 0.71 101.78 6466 6.92 364 296 0.0102 NO 0.009 0,679 100 6468 6.63 352 306 0.0114/0.0111 0.0011/0,011 0,01/0.013'.639/0.694 98.99 6469 6.98 361 288 0.01 0,001 0,01 0.724 98.95 6469 6.74 294 290 580 1660 0.033 <0.003 0.012 0.989 96.3 6472 6.88 368 275 598 1636 0.01 0.0009 0.01 0.739 91.29 6477 6.93 366 273 573 1624 0.01 0.0006 0,01 0.739 93.14 6475 6.74 345 277 538 1650 0.0093 0.0016 0.009 0.716 92.16 6476 6.91 350 292 625 1720 0.0106 0.0013 0.012 0.693 88.85 6479 7.48 327 292 598 1680 0,012 -0.1 0.011 0.646 Well-EF-6 EF-6 EF-6 EF-6 EF-6 EF-6 Date 11-Jun-07 20-Aug-07 25-0ct-07 4-Jun-08 15-0ct-08 25-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-6 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 87.77 6480 7.43 311 300 576 1660 0.012 -0.1 0.012 0.72 86.85 6481 7.27 343 285 596 1690 0.011 -0.1 0.013 0.704 86.02 6482 7.41 374 292 620 1750 0.01 -0.1 0.013 0.638 84.4 6484 7.32 350 292 632 1770 0.011 -0.1 0.01 0.742 81.37 6487 7.17 363 291 612 1740 0.011 -0.1 0.011 0.686 80.37 6488 7.32 374 311 601 1650 0.009 <0.1 0.018 0.702 Well-EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 EF-8 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 24-Jan-90 56.73 6516 7.62 256 170 246 934 15-May-90 59.15 6514 7.38 266 159 205 778 25-Jul-90 64.32 6509 7.24 263 162 188 922 10-0ct-90 67.08 6506 7.36 292 184 249 980 14-Feb-91 69.34 6504 7.52 275 175 222 876 25-Apr-91 70.71 6502 7.49 277 171 228 908 24-Jul-91 72.84 6500 7.46 304 187 277 1100 26-0ec-91 75.68 6497 7.5 342 191 379 1178 13-Feb-92 73.94 6499 7.51 360 180 358 1204 27-Apr-92 75.7 6497 7.52 315 201 296 1064 06-Aug-92 74.18 6499 7.6 278 174 235 906 04-Nov-92 74.06 6499 7.51 278 180 241 850 07-Mar-93 74.02 6499 7.45 285 175 238 880 14-Jun-93 72.54 6500 7.25 288 185 290 896 01-Jun-94 77.62 6495 01-Oec-94 79.06 6494 01-May-95 80.34 6493 01-0ct-95 86.44 6487 01-Jun-96 87.94 6485 01-0ct-96 87.92 6485 01-May-97 90.44 6483 01-0ec-97 94.06 6479 01-May-98 92.3 6481 22-Jul-98 93 6480 01-Dec-98 96.18 6477 01-Apr-99 92.46 6481 25-Apr-00 94.15 6479 01-May-00 94.82 6478 01-0ec-00 96.95 6476 01-Mar-01 98.68 6474 01-Mar-01 104.68 6468 01-Oct-01 104.25 6469 11-Mar-03 107.07 6466 08-May-03 107.68 6465 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-8 7.22 556 570 196 7.49 230 34 102 7.36 7.41 61 66 158 159 224 217 1176 0.025 0.007 728 0.031 672 244 0.0281 0.0284 0.0098 0.0083 0.008 0 0.004 0.001 0.007 0.069 0.021 0.02 0.016 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well EF-8 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) EF-8 30-Jun-04 110.25 6463 6.93 254 339 0.03 0.009 0.07 0.025 EF-8 16-Sep-04 111.45 6462 7.55 256 79 0.03 0.008 0.008 0.024 EF-8 17-Dec-04 108.82 6464 7.57 268 101 0.0273 0.007 0.007 0.024 EF-8 3-Mar-05 106.96 6466 7.74 264 203 0.0245/0.0263 ).0066/0.0082 ),005/0.008'.019/0.024 EF-8 22-Jun-05 105.74 6467 7.37 277 205 0.03 0.008 0.008 0.025 EF-8 29-Sep-05 104.81 6468 7.12 222 97 240 720 0.0129 0.0078 0.008 0.0247 EF-8 9-Nov-05 102.46 6471 7.42 275 97 274 684 0.03 0.007 0.008 0.03 EF-8 23-Mar-06 100.6 6472 7.36 255 94 282 784 0.03 0.008 0.008 0.03 EF-8 25-Sep-06 99.05 6474 7.2 267 103 241 742 0.0218 0.0078 0.006 0.0254 EF-8 14-Dec-06 96.48 6477 7.41 262 97 239 748 0.028 0.0081 0.007 0.026 EF-8 20-Mar-07 92.95 6480 7.66 229 95 237 722 0.025 -0.1 0.008 0.0305 EF-8 11-Jun-07 92.2 6481 7.56 232 102 225 730 0.027 -0.1 0.008 0.0567 EF-8 20-Aug-07 90.91 6482 7.26 242 96 236 758 0.026 -0.1 0.008 0.0563 EF-8 25-0ct-07 89.35 6484 7.68 269 89 235 736 0.03 -0.1 0.008 0.0353 EF-8 6-Jun-08 87.71 6485 7.71 257 101 247 772 0.031 -0.1 0.008 0.0631 EF-8 15-0ct-08 83.99 6489 7.58 268 108 246 798 0.03 -0.1 0.009 0.0768 EF-8 25-Mar-09 84.69 6488 7.71 283 116 249 813 0.034 <0.1 0.009 0.105 Well ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 ML-1 Date 05-Nov-98 05-Nov-98 03-Mar-03 03-Mar-03 06-May-03 29-Sep-03 17-Nov-03 24-Mar-04 30-Jun-04 15-Sep-04 17-Dec-04 3-Mar-05 22-Jun-05 29-Sep-05 9-Nov-05 23-Mar-06 25-Sep-06 14-Dec-06 20-Mar-07 11-Jun-07 20-Aug-07 25-0ct-07 6-Jun-08 15-0ct-08 25-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well ML-1 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 37.97 6491 7.29 249 145 272 984 0.014 0.005 0.007 0.01 37.97 6491 7.29 249 145 265 960 0.014 0.007 0.007 0.01 47.22 6482 6.91 234 188 287 1264 0.019 0.0064 0.01 0.02 47.22 6482 6.91 237 188 287 1220 0.0194 0.0061 0.01 0.02 45.52 6484 7.23 252 172 328 1364 0.0132 0.0073 0.009 0.018 48.95 6480 7.25 240 185 276 1220 0.0134 0.0072 0.008 0.019 48.79 6480 7.33 218 325 263 1160 0.02 51.12 6478 7.19 263 178 0.01 0.0067 0.008 0.016 49.75 6479 7.3 252 692 0.01 0.006 0.009 0.019 51.7 6477 6.95 261 178 0.01 0.006 0.008 0.016 52.35 6477 6.89 274 192 0.0138 0.0045 0.008 0.015 51.77 6477 7.06 258 205 0.0128/0.0137 ).0049/0.0057 ).007/0.013 '.013/0.015 50.08 6479 7.23 277 180 0.01 0.006 0.009 0.016 47 6482 6.96 216 186 360 1060 0.0675 0.0054 0.01 0.0148 46.85 6482 7.27 262 164 345 852 0.02 0.005 0.01 0.015 46.67 6482 7.07 258 150 354 1044 0.01 0.006 0.01 0.015 47.38 6482 6.97 247 163 368 1090 0.0104 0.0059 0.007 0.0142 48.56 6481 6.94 246 147 379 1050 0.0113 0.0059 0.01 0.014 46.46 6483 7.58 235 154 332 1010 0.013 -0.1 0.01 0.0274 44.94 6484 7.74 238 164 320 1020 0.014 -0.1 0.009 0.032 47.52 6482 7.52 252 156 324 1020 0.013 -0.1 0.01 0.038 46.63 6482 8.09 253 147 381 1040 0.007 -0.1 0.011 0.0186 45.76 6483 7.45 235 146 378 1060 0.007 -0.1 0.01 0.0162 44.73 6484 7.45 238 149 365 1030 0.006 -0.1 0.01 0.0147 45.97 6483 7.55 248 149 349 990 0.006 <0.1 0.010 0.0142 Rio Algom Mining LLC-Lisbon Operation Historical Groundwater Data Monitoring Well RL-1 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) RL-1 31-Mar-03 116.19 6535 7.1 1111 603 3617 7392 0.005 8.02 0.077 37.1 RL-1 31-Mar-03 116.19 6535 7.1 1111 603 3621 7506 0.0043 8.23 0.075 38 RL-1 31-Mar-03 116.19 6535 7.1 1114 613 3468 7284 0.0023 7.05 0.05 31.4 RL-1 16-Apr-03 115.21 6536 7.17 1279 8104 0.0028 9.59 0.055 37.3 RL-1 16-Apr-03 115.21 6536 7.17 1279 8104 0.004 10.1 0.078 40.2 RL-1 10-May-03 115 6536 7.29 995 725 3712 7272 0.0039 9 0.067 33.4 RL-1 1-0ct-03 115.15 6536 7.04 1030 651 3706 8224 0.0029 8.45 0.058 36.7 RL-1 19-Nov-03 115.37 6536 6.99 1030 576 3842 7652 32.2 RL-1 25-Mar-04 115.1 6536 6.83 1018 331 0.0034 10.2 0.064 40.5 RL-1 1-Jul-04 115.37 6536 7.01 1032 684 0.006 8.9 0.05 24.37 RL-1 21-Sep-04 115.63 6535 8.44 801 578 0.003 6,8 0.06 29.54 RL-1 15-Dec-04 152.62 6498 7.27 851 613 0,0023 8.17 0.045 32.5 RL-1 3-Mar-05 116.23 6535 7.16 865 607 010.002 7.81 0 29.54 RL-1 20-Jun-05 116.73 6534 7.61 812 560 0.003 7.4 0.06 33.97 RL-1 30-Sep-05 117.27 6534 6.88 821 640 3890 7530 0,005 8,7 0.057 36.8 RL-1 10-Nov-05 116.15 6535 7.01 1158 646 4269 8080 0.004 9.5 0.07 44.31 RL-1 24-Mar-06 113.61 6537 7.14 912 646 4249 8110 0.004 10.4 0.07 44.31 RL-1 29-Sep-06 117.15 6534 6.5 1030 664 4380 7940 0.002 6.87 0.047 29.1 RL-1 14-Dec-06 116.96 6534 6.47 1010 639 4280 8100 0,003 6.99 0,051 29,8 RL-1 19-Mar-07 115.33 6536 6.92 805 591 3460 6860 0.002 7.4 0.057 30.3 RL-1 11-Jun-07 115.39 6536 7.08 376 641 3960 7740 0.003 8.7 0.067 39.1 RL-1 20-Aug-07 115.37 6536 7.64 883 590 4080 7250 0,002 7 0.056 34.3 RL-1 24-0ct-07 115.47 6536 7.26 1130 667 4300 8300 0,003 9.8 0.07 33.8 RL-1 4-Jun-08 116.34 6535 7.25 1030 660 4510 8580 0,003 10.2 0.062 46.7 RL-1 28-0ct-08 116.54 6534 7.24 1050 655 4240 8240 -0,001 10,8 0.065 41.5 RL-1 25-Mar-09 116.19 6535 7.38 1120 671 4390 8460 0.001 10.7 0.076 41.4 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well RL-3 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat Well Date (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) RL-3 31-Mar-03 169.45 6533 7.17 1111 584 3176 6284 0.0027 3.04 0.08 20.8 RL-3 31-Mar-03 169.45 6533 7.17 1114 597 3176 6412 0.0024 3.07 0.08 19.9 RL-3 31-Mar-03 169.45 6533 7.17 1114 584 3200 7092 0.0029 2.53 0.051 17.2 RL-3 16-Apr-03 185.54 6517 7.01 1242 5668 0.0027 2.47 0.054 16.5 RL-3 16-Apr-03 2.59 0.069 17.9 RL-3 16-Apr-03 168.75 6534 6.99 1245 7444 0.0028 3.21 0.059 20 RL-3 16-Apr-03 3.33 0.07 20.3 RL-3 16-Apr-03 168.75 6534 6.99 1245 7232 0.004 3.23 0.058 20.2 RL-3 09-May-03 168.51 6534 7 1017 647 3320 6700 0.0019 2.93 0.066 18.9 RL-3 1-0ct-03 168.95 6534 6.94 1086 641 3456 7872 0.0019 2.93 0.066 18.9 RL-3 19-Nov-03 169 6534 6.95 1135 622 3502 7076 23 RL-3 25-Mar-04 168.9 6534 6.84 1171 549 0.0019 3.884 0.07 27.6 RL-3 1-Jul-04 169.14 6533 6.6 1147 666 0.004 2.5 0.06 35.16 RL-3 21-Sep-04 169.15 6533 8.1 1336 634 0.003 3.8 0.07 25.11 RL-3 18-Dec-04 173.78 6529 6.55 1100 640 0.0032 3.63 0.055 23.63 RL-3 3-Mar-05 170.15 6532 6.76 1903 703 0 3.24 0 22.2 RL-3 23-Jun-05 170.83 6532 7 1132 612 0.004 3.8 0.08 26.59 RL-3 30-Sep-05 171.5 6531 7.17 545 460 2350 5070 0.118 1.5 0.046 12.6 RL-3 10-Nov-05 170.25 6532 7.04 1209 783 3749 7250 0.004 3.7 0.08 29.54 RL-3 24-Mar-06 169.53 6533 7.36 995 626 3772 6300 0.002 2.3 0.07 14.77 RL-3 29-Sep-06 171.4 6531 6.48 1010 629 3550 7040 0.002 3.61 0.0666 23.8 RL-3 14-Dec-06 171.32 6531 6.25 1050 611 3790 7480 0.002 3.6 0.07 24.6 RL-3 19-Mar-07 169.21 6533 5.86 554 408 2130 4350 0.002 0.9 0.042 8.96 RL-3 11-Jun-07 169.24 6533 7.15 224 423 2040 4280 -0.001 0.8 0.044 9.27 RL-3 20-Aug-07 169.7 6533 7.45 654 448 2350 4770 -0.001 1 0.045 11 RL-3 24-0ct-07 169.35 6533 7.2 1100 659 3900 7710 -0.002 3.9 0.065 21.9 RL-3 4-Jun-08 170.7 6532 7.3 875 570 3240 6530 0.003 2.1 0.058 20.9 RL-3 15-0ct-08 169.04 6534 7.3 1050 642 3720 7480 -0.001 3.6 0.059 27 RL-3 25-Mar-09 170.68 6532 7.31 873 536 2880 5740 0.002 1.7 0.059 17.4 Well H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-64 H-63 H-63 H-63 Date 01-Sep-89 01-Jan-90 01-0ec-90 01-May-91 01-Sep-91 01-Mar-92 01-Sep-92 01-Jun-93 01-Jun-94 01-0ec-94 01-May-95 01-0ct-95 01-Jun-96 01-0ct-96 01-May-97 01-0ec-97 01-May-98 23-Jul-98 01-0ec-98 01-Apr-99 01-May-00 01-0ec-00 01-Mar-01 01-0ct-0 1 01-Mar-02 12-Mar-03 09-May-03 24-Mar-04 30-Jun-04 15-Sep-04 17 -Oec-04 2-Mar-05 22-Jun-05 28-Sep-05 136.02 136.28 137.06 6549 6549 6548 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well 6.32 172 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSl)(sou.)(mg/l)(mg/l)(mg/l)(mg/l)(mgfl)(mg/l)(mg/l)(mg/l) 131.1 6554 132.05 6553 132.3 6553 132.64 6552 132.86 6552 133.16 6552 133.26 6552 132.28 6553 132.22 6553 132.24 6553 132.3 6553 133.88 6551 134.7 6550 134.2 6551 133.5 6552 133.96 6551 142.7 6542 134 6551 134.06 6551 133.96 6551 134.58 6550 134.8 6550 134.82 6550 135.2 6550 135.3 6550 135.01 6550 135.1 6550 135.64 6549 136 6549 138.33 6547 6.81 6.54 7.06 7.12 6.89 7.99 7.48 7.89 7.67 263 381 258 249 243 209 258 277 217 660 51 56 249 100 248 201 150 127 124 H-63 442 342 673 230 1065 0.0110.025 1020 0.0088 0.0224 0.0002 1368 0.0244 0.001 0.002 0.0064 0.0078 0.09 0.03 0.02 0.01 0.03 0.01 0.01 0.0376 0.0109 0.008 0.0453/0.0411 J.0108/0.0104 ).007/0.009 0.05 0.01 0.009 890 0.0241 0.01 0.008 0 0.017 0.11 0.023 0.025 0.017 0.014 NO 0.012/NO NO 0.0121 Well H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 H-63 Date 9-Nov-05 23-Mar-06 25-Sep-06 14-Dec-06 20-Mar-07 12-Jun-07 21-Aug-07 24-0ct-07 4-Jun-08 14-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well H-63 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TDS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 136.12 6549 7.97 275 115 235 692 0.06 0.01 0.01 0.012 135.55 6549 8.3 257 88 219 824 0.07 0.01 0.01 0.015 136.36 6549 B 266 96 112 704 0.0625 0.0102 0.007 0.0124 136.7 6548 8.25 264 89 205 718 0.0636 0.01 0.007 0.012 133.84 6551 7.64 257 85 213 710 0.069 -0.1 0.008 0.0133 133.95 6551 8.05 257 89 211 686 0.072 -0.1 0.008 0.0133 131.88 6553 8.66 264 81 210 698 0.072 -0.1 0.009 0.0343 133.65 6551 8.28 271 78 212 674 0.068 -0.1 0.009 0.0165 135.07 6550 8.36 247 74 207 667 0.061 -0.1 0.008 0.0138 133.24 6552 8.34 254 75 198 662 0.061 -0.1 0.009 0.0116 136 6549 8.42 253 72 180 614 0.068 <0.1 0.007 0.0105 Well LW-1 LW-1 LW-1 LW-1 LW-1 LW-1 LW-1 LW-1 LW-1 Date 25-Sep-06 13-Dec-06 19-Mar-07 12-Jun-07 21-Aug-07 23-0ct-07 3-Jun-08 14-0ct-08 24-Mar-09 Rio Algom Mining LLC -Lisbon Operation Historical Groundwater Data Monitoring Well LW-1 Depth to Water Water Elevation pH Bicarbonate Chloride Sulfate TOS Arsenic Molybdeum Selenium U-Nat (feet)(MSL)(s.u.)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L)(mg/L) 148.48 6572 7.16 185 42 128 392 0.02 0.2 0.002 0.591 148.38 6572 8.01 200 11 111 326 0.0015 0.0016 0.002 0.006 145.78 6574 7.32 468 14 125 402 0.0017 0.012 0.002 0.026 145.79 6574 7.75 200 14 123 370 -0.001 -0.1 0.003 0.0024 145.75 6574 8.24 183 10 120 358 -0.001 -0.1 0.002 0.0038 146.83 6573 7.45 205 11 124 360 -0.001 -0.1 0.003 0.0161 146.71 6573 7.54 205 9 118 348 -0.001 -0.1 0.002 0.0063 145.44 6575 7.57 190 10 116 366 -0.001 -0.001 0.002 0.0034 146.39 6574 7.55 192 10 111 352 0.001 -0.001 0.003 0.0026 203 8 100 340 <0.001 <0.1 0.002 0.0019 Appendix 2 Time Versus Concentration Plots For Required Parameters Rio Algom Mining LLC-Lisbon site 151Half 2009 Groundwater Monitoring Report Page 6 Time versus Concentration WellRL-1 50 ~45DI §.40c0 :;:;35~;30()c8 25 20 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-Oa Jan-09 Jan-10 Time I ~Uranium-Trend [ Time versus Concentration Well RL-3 c:400~--30.=.~c:0>20~Ec:-0 10 () 0 Jan-D3 Jan-D4 Jan-05 Jan-06 Jan-D7 Jan-D8 Jan-09 Jan-10 Time I-+-Uranium -Trend I Time versus Concentration Well RL-4 ::J 0.08-0> .s 0.06 c:0 ~0.04~-c:~0.02c:0 ()0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time [-+-Uranium -Trend I , I I '"-.....-"'" - ~0.20> .s 0.15c:: 0~0.1~~0.05()c::0 () Time versus Concentration Well RL-5 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Uranium -Trend I Time versus Concentration Well RL-6-~0.1 .s 0.08 c:: 0 0.06:;::;co.;:.0.04c::~0.02c:: 0 0() Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time 30 ;r 25CI g 20c0~15b i 10uc85 0 Jan-03 I--+-Uranium -Trend I Time versus Concentration Well EF-3A Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Uranium-Trend I , A J--*'.,, Time versus Concentration WellEF-6 5 ;l4g! g g 3:;:;tIS...C 2 GI() c8 1 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan~Jan~2 Jan~4 Jan~Jan~Jan-10 Time I--+-Uranium -Trend I Time versus Concentration Well EF-8 0.12 ;l 0.1g! g 0.08c0:;:; tIS...-CGI()C00 0.06 0.04 0.02 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Uranium -Trend I Time versus Concentration Well H~3 0.12 ~0.10g! g 0.08c0i0.06...c~0.04c80.02 0.00 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Uranium -Trend I Time versus Concentration Well LW-1 0.030 ;!0.025CD §.0.020c0 "ii:0.015...-c ~0.010c <3 0.005 0.000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Uranium -Trend I Time versus Concentration Well ML-1 --0.040~0.035§.0.030 S 0.025 "ii:0.020~0.015g0.010 <3 0.0050.000 ~~~~~~~~~~~~~~ ~'B ~'&~~CL~'Q ~'O ~'O ~'O ~Y)~"Q ~'Q ~'O ~Y2 ~"Q ~~7.~&~V 7 ~~~~~~~~0 Time I-+-Uranium -Trend I Time versus Concentration Well MW-13 0.080 ;!0.070CD§.0.060 S 0.050 "ii:0.040...i 0.030 g 0.020 <3 0.010 0.000 Jan-Jan- 92 94 Jan-Jan-Jan- 96 98 00 Jan-Jan-Jan- 02 04 06 Jan-Jan- 08 10 Time I-+-Uranium-Trend I Time versus Concentration Well MW-5 0.050 - :::i"l 0.040 5 0.030:;:;III~0.020GJ()C00 ...0.010 0.000 Jan- 90 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Time I-+-Uranium -Trend I Time versus Concentration Well OW-UT-9 :::i" CJ .sc0:;:;III...-CGJ()C0 0 ~:-nI Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 90 92 94 96 98 00 ~04 06 08 10 Time I-+-Uranium -Trend I Time versus Concentration WellRL-1 12 ~11ell §.10c0~9.. 5i 8(J 6 7(J 6 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time [-+-Molybdenum -Trend I Time versus Concentration Well RL-3 c:5 :2 4 ~::J 3...-c:0>2<D E(J......... c:10 <..)0 Jan- 03 Jan- 04 Jan- OS Jan- 06 Jan- 07 Jan- oa Jan- 09 Jan- 10 Time I-+-Molybdenum -Trend I Time versus Concentration Well RL-4 c:0.006 :2 0.005 ~::J 0.004 C C»0.003 g -S 0.00200.001 <..)0 Jan- 03 Jan- 04 Jan- OS Jan- 06 Jan- 07 Jan- oa Jan- 09 Jan- 10 Time I-+-Molybdenum -Trend I TIme versus Concentration Well RL-5 ~0.025 -S 0.02c:.Q 0.015+-'roE 0.01 Q) ()0.005c:8 O~'-+ Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 TIme Jan-08 Jan-09 Jan-10 I-+-Molybdenum -Trend I Time versus Concentration Well RL-6 ~0.30>E 0.25-- c:0.20~0.15I....C 0.1 Q)g 0.05 8 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Molybdenum -Trend I Time versus Concentration Well EF..JA 3.5 ~3C) §.2.5 5 2 g 1.5r::B 1r:: 8 0.5 0 Jan-03 ------------ Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Molybdenum-Trend I Time versus Concentration WellEF-6 0.006 ~0.005 .§.0.004c:0~0.003~-;0.0020c:8 0.001 0 . . Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-QO Jan"()2 Jan-04 Jan-OO Jan-oB Jan-10 Time I-+--Molybdenum -Trend I Time versus Concentration Well EF-8 l 0.012 ~0.01E -;;;0.0080~0.006~~0.0040 5 0.002(.) 0 Jan-03 ,1II ---r Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+--Molybdenum-Trend I Time versus Concentration Well H63 0.025 ::;t»0.020 .§. 5 0.015 ~ ~0.010Q)05 0.005(.) 0.000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+--Molybdenum-Trend I Time versus Concentration Well LW-1 0.014 ~0.012C) .E.0.010c:.2 0.008 'tVb 0.006c:B 0.004c:8 0.002 0.000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-MOlybdenum -Trend I Timeversus Concentration Well ML-1 0.020 :r ~0.015 c:0 ~0.010...-c:CI)g 0.0050u 0.000 Jan-97 Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Time I-+-Molybdenum -Trend I Timeversus Concentration WellMW-13 -0.080~0.070g0.060 6 0.050~0.040~0.030 8 0.020c:8 0.0100.000 Jan-Jan- 92 94 --------------- Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 96 98 00 02 04 06 08 10 Time I--'-Molybdenum -Trend I ! I I I.. ,""., Time versus Concentration Well MW-S ::J 0.140 t»0.120.s 0.100c.2 0.080- .s 0.060 I.... ~0.040 8 0.020 (.)0.000 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 90 92 94 96 98 00 02 04 06 08 10 Time I-+--Molybdenum -Trend I Time versus Concentration Well OW-UT-9 -70..JD 60 .s 50c.2 40-~30- ~20810 (.)0 Jan-Jan- 90 92 . ~J~J~J~J~J~J~J~J~ 94 96 98 00 02 04 06 08 10 Time I-+--Molybdenum -Trend I Tune versus Concentration WellRL-1 0.09 :r 0.08CI .E.0.07c0 ~0.06.. ~0.05c80.04 0.03 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time 1 Selenium -Trend I Time versus Concentration Well RL-3 0.09c::0:;::; ~::J 0.07-c::C> ~g 0.05c::0 ()0.03 Jan- 03 Jan- 04 Jan- OS Jan- 06 Jan- 07 Jan- 08 Jan- 09 Jan- 10 Time 1 Selenium -Trend I Time versus Concentration Well RL-4 §0.008~::J 0.006 55 CD 0.004 g g 0.0020()0 Jan- 03 Jan-Jan-Jan-Jan-Jan-Jan-Jan- 04 05 06 07 08 09 10 Time 1--.-Selenium-Trend I Time versus Concentration Well RL-5 c::0.006 :8 0.005 ~:::J0.004 ~0>0.0030-S 0.002 §0.001 ()0 Jan- 03 Jan- 04 Jan- OS Jan- 06 Jan- 07 Jan- 08 Jan- 09 Jan- 10 Time I-+-Selenium -Trend I Time versus Concentration Well RL-6 0.015c::0+:;~:::J 0.01-c::0) <D E 50--0.00c:: 0 ()0 Jan- 03 Time versus Concentration Well EF-3A 0.1 :::r 0.0501E 'C'00!Jam-03~-0.05uc0 0 -0.1 II jJan~10 -0.15 Time I-+-Selenium-Trend I Jan-Jan-Jan-Jan-Jan-Jan-Jan- 04 05 06 07 08 09 10 Time I-+-Selenium -Trend I 0.02 ::;I 0.015c:0i 0.01...-c:ellU g 0.005(,) 0.08-0.07...J~0.06~0.050i0.04 ~0.03ug0.02 u 0.01 0 Jan-03 0.10 Time versus Concentration Well EF-6 . ........ .. 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-QO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 Time 1-.-Selenium -Trend 1 Time versus Concentration WellEF-8 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time 1-.-Selenium -Trend 1 Time versus Concentration Well H-63 ~0.08Ei0.06:;::III~0.04~c:8 0.02 0.00 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time 1-.-Selenium-TrendI Time versus Concentration WellLW-1 0.004 ::i 0.003 l 0.003 6 0.002 :;::;~0.002cGIg0.0010 0 0.001 0.000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Tune I-+-Selenium-Trend I Time versus Concentration WellML-1 0.012 ~0.010CI .s 0.008c0:;0.006..1:8 0.004c80.002 0.000 Jan-97 Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Time I-+-Selenium -Trend I Time versus Concentration Well MW-13 0.060 ~0.050E~0.0400 :;0.030.. 1i 0.020uc80.010 0.000 Jan-Jan- 92 94 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 96 98 00 ~M 06 08 10 Time I-+-Selenium -Trend I Time versus Concentration WellMW-5 0.080 ::J'0.070t0.060i0.050:;0.040 ~0.030g0.020 8 0.010 0.000 Jan- 90 ~.. Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Tune [--+-Selenium -Trend I Time versus Concentration Well OW-UT oS 0.250 -0.200 :::!l 0.150 c:0 :;0.100...-c:8 0.050c:00 . . 0.000 -0.05oJgu-90 .... 92 =-.Jan-Jan-Jan-Jan-Jan-Jan-Jan-J~n- 94 96 98 00 02 04 06 08 10 Time j-+-Selenium -Trend 1 Time versus Concentration WellRL-1 0.007 :::;0.006 ~0.005 S 0.004 g 0.003c~0.002c80.001 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Arsenic -Trend I Time versus Concentration Well RL-3 ~0.150> E- §0.1:.;::;co.... E 0.05(I)uc:0 ()0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--+-Arsenic -Trend I Time versus Concentration Well RL-4 ::::J 0.003-0> -S 0.002c: 0~0.001.........c:(I)uc:0 ()Jan- 09 J~I-10 Time I-+-Arsenic-Trend I I I Time versus Concentration Well RL-5 0.002 c 0.00150~-0.001LJ 1::rn 0 0005Q)E .g-0 0 U -0.0005J -0.001 I Time I-+-Arsenic -Trend I Time versus Concentration Well RL-6- ~0.0040> .s 0.003c0~0.002L.......... as 0.001 ()c0 U 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time IJI,H iI I I-+-Arsenic -Trend I Time versus Concentration Well EF-3A 0.3 ~0.25E-;0.20~0.15..i 0.1uc80.05 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Arsenic-Trend I Time versus Concentration WellEF-6 0.035 3 0.03~0.025 5 0.02~0.015cg0.010 0 0.005 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 Time I--+-Arsenic -TrendI Time versus Concentration Well EF-8 0.04 3 0.035~0.03i0.025 :;0.02 ~0.015 ~0.01 0 0.005 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-ArseniC -Trend I Time versus Concentration Well H-63 0.08 ::J0.07~0.06~0.050 :;0.04 ~0.03g0.02 8 0.01 0.00 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Arsenic-Trend I . .........'... ..... -....... .......,........ Time versus Concentration Well LW-1 0.0020 ::J ~0.0015 &::0 1ii 0.0010...- &:: CIIg 0.00050u 0.0000 Jan-03 Jan-Q4 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Arsenic -TrendI Time versus Concentration Well ML-1 0.0800 ::J0.0700 ~0.0600 ~0.05000 1ii 0.0400 i 0.0300 g 0.0200 8 0.0100 0.0000 Jan-97 Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Time I-+-Arsenic -Trend I Time versus Concentration Well MW-13 0.0400~0.0350 .§.0.0300 IS 0.0250 1ii 0.0200~0.0150 g 0.010080.00500.0000 Jan-Jan-Jan- 92 94 96 Jan-Jan-Jan-Jan-Jan-Jan-Jan- 98 00 02 04 06 08 10 Time I-+-Arsenic-Trend I I I \.......' ....- V ....-"""I, I"".............I"""",.... I I ~0.0070~'a,0.0060 .§.0.0050c.2 0.0040~0.0030c ~0.0020cS0.00100.0000 Jan-Jan- 90 92 Time versus Concentration Well MW-S ~3.50~i:D 3.00 .§.2.50c~2.00~1.50c~1.00cS0.500.00 Jan- 90 .. Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 94 96 98 00 02 04 06 08 10 Time I-+-Arsenic-Trend I Time versus Concentration Well OW-UT-9 ... Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Time I-+-Arsenic -TrendI 9000 ~8500E;80000 :;7500...~7000 (,) 8 6500 6000 Jan-03 9000 :::i' ~8000 :5 7000:c;I'CI~6000QI(,) :5 5000 () Time versus Concentration Well RL-1 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time FT08 -Trend I Time versus Concentration Well RL-3 4000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time - :2 12000> E 1000---- c 800a :;::;600co -E 400 ~200ca0() Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Time I-+-T08 -Trend I Time versus Concentration Well RL-4 t .1".A ~ Jan-08 Jan-09 Jan-10 I-+-T08 -Trend I Time versus Concentration Well RL-5 :::J 700-0> -S 600c: 0~500'-- ~400()c: 8 300 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-TDS -Trendl Time versus Concentration Well RL-6 1950 ~1750CI.s 1550c ~1350I'CI ~1150C>8 9500 750 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-TDS -TrendJ Time versus Concentration WellEF-3A 6500 ::i :[5500c0 :0:;4500e-cIII g 350000 .-.. 2500 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 i ITime I-+-TDS-Trend I 3500 ~3000§. Time versus Concentration Well EF-6 IS 2500:;:;III~2000III()8 1500 1000 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-Q4 Jan-Q6 Jan-08 Jan-10 1400 ~1200CI ~10000~800... ~600()£:8 400 200 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-Q4 Jan-06 Jan-08 Jan-10 1600 ~1400 §. g 1200:;:;III~1000Sg800u Time I-+-TDS -Trend I Time versus Concentration Well EF-8 ---------. . Time I-+-TDS-TrendI Timeversus Concentration WellH-63 600 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-TDS -Trend I 420 ~400CI .§.380c0~360.. ~340uc <3 320 300 Jan-03 Time versus Concentration Well LW-1 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time ~1000...Jl 800 5 600 ~400J:Q) g 2000 u 0 Jan-Jan-Jan- L94 00 1400 ;g;1300 ~12000 ~1100.. ~1000c <3 900 800 Jan-97 I-+-TDS -Trend I Time versus Concentration Well ML-1 -------- Jan- 10 Jan-99 Jan-01 Jan-03 Jan-05 Jan-07 Jan-09 Time I-+-TDS -Trend I Time versus Concentration Well MW-13 Jan-Jan-Jan-Jan-Jan-Jan- 98 00 02 04 06 08 Time I-+-TDS -Trend I Time versus Concentration Well MW-5 ~2000...J g, §.1500s:: 0 ~1000...-s:: ~500c0 ()0 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 90 92 94 96 98 00 02 04 06 08 10 Time I-+-TDS -Trend I II~ Time versus Concentration Well OW-UT-9 ~40000...J ~35000 6 30000:CI!!i:25000 -CIJ §20000 ()15000 Jan- 90 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Time I-+-TDS -Tr~ 3700C. §..6oo s::0 =500I!- s::~400 s:: <3 300 800-~ 0>700E-- §600 :jj ro~500Q) g 4000 () Time versus Concentration Well RL-1 800 200 Jan-03 Jan-07 Jan-08 Jan-09 Jan-10Jan-04 Jan-05 Jan-06 Time versus Concentration WeIf RL-4 10 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Time I-+-Chloride -Trend I Time versus Concentration Well RL-3 300 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Chloride -Trend I 60 ::J'~50-- §40 :jjro~30Q)0 §20 () Time I-+-Chloride-Trend I Jan-09 Jan-10 Time versus Concentration Well RL-5 :J'70 t»60E ';;'50 40tV 30 20c: 8 10 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time [-+-Chloride -Trend I Time versus Concentration Well RL-6 -250....J...... 200- §150:;:ItV.... 1::100Q)(.)c:5000 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Chloride -Trend I Time versus Concentration WellEF-3A 800 :::i'750- 0'1 700E--Ic6500 600 .b ;550u 8500 °450 400 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan..{)8 Jan-09 Jan-10 Time I-+-Chloride -Trend I Time versus Concentration Well EF-6 800 ::i'700 =600E-;5000 "J:4OO.b ;300(J 6200 0 100 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-QO Jan-Q2 Jan-04 Jan-06 Jan-Q8 Jan-10 Time I-+-Chloride -Trend I Time versus Concentration WellEF-8 400-350..J en300E -;2500~200~150u 6 100 0 50 0 Jan-90 . Jan-92 Jan-94 Jan-96 Jan-98 Jan-QO Jan-02 Jan-Q4 Jan-06 Jan-08 Jan-10 Time I-+-Chloride-Trend I Time versus Concentration WellH-63 400-350..Jen300E -;2500 :;200...~150u 6 100050 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Chloride -Trend I Time versus Concentration Well LW-1 20 --- ::r 18 C».s16c0 ~14.bc ~12c0 0 10 8 Jan-03 Jan-Q4 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Chloride -Trend I Time versus Concentration Well ML-1 800 ::r 700 C»600 .s c5000~400.b ;300u 8200 0 100 0 Jan-97 Jan-99 Jan-01 Jan-03 Time Jan-05 Jan-07 Jan-09 I-+-Chloride -Trend I Time versus Concentration Well MW-13 100 ::r l 75c0;::I.!-c~c00 50 25 0 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 Time -+-Chloride-Trend I I I .I I\j ! ................................. I Time versus Concentration Well MW-5 400 350~=300E-;250 .2200~C 150GIg1000 0 50 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-oo Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 Time --+-O1loride-Trend Time versus Concentration WellOW-UT-9 2500 ~2250= .5.2000c0i1750..-cB 1500c001250 1000 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 Time -+-Chloride-Trend ------------------ -----, I; I , I II-,I \..,A................}o[; Time versus Concentration WellRL-1 4600-4400~~4200-;40000 :::3800~ 1i 3600 8 3400 (,)3200 3000 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Sulfate -Trend I Time versus Concentration Well RL-3 c:4500 .2 4000-- ~:::J 3500 C a 3000~g 2500 §2000 u 1500 Jan-Jan- 03 04 Jan-Jan-Jan-Jan-Jan-Jan- OS 06 07 08 09 10 Time I-+-Sulfate -Trend I Time versus Concentration Well RL-4 210c:0:;::;~:::J 160---c:o> ~g 110c:0 U 60 Jan-Jan-Jan-Jan- 03 04 05 06 Jan- 07 Jan- 08 Jan-Jan- 09 10 Time I-+-Sulfate-TrendI Time versus Concentration Well RL-5 150c0~~:::J 100-C 0> ~.s 50c 0 (.)0 Time versus Concentration Well RL-6 1200 :i 1000 01 .5.800c0 :;600.. ~400uc <3 200 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I Sulfate -Trend I 3000 I :i 250001 .5.2000c0~1500 ~1000c <3 500 0 Jan-03 Timeversus Concentration WellEF-3A Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I--'-Sulfate -Trend I Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 03 04 05 06 07 08 09 10 Time I--'-Sulfate -Trend I Timeversus Concentration WellEF-6 2000 ~1500 §. c0 :;1000....-CQIU §5000 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OOJan-Q2 Jan-04 Jan-06 Jan-08 Jan-10 Time I-+-Sulfate -Trend I Time versus Concentration WellEF-8 400 ::r 350~300 ";;'2500:;200~150QIg100 <3 50 0 Jan- 90 . Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Time I-+-Sulfate -Trend I Time versus Concentration WellH-63 800 700 ~600~5000 :;400 ~300u §200 0 100 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Sulfate-Trend I j J 130-125...Ic,120E-;1150 ;:110! 1!105 g 1000 0 95 90 Jan-03 500 ~400CIE-;3000;:III 'E 200cuuc8100 0 Jan-97 200 ::rr 150 c0~100-ccug 5000 Time versus Concentration Well LW-1 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time I-+-Sulfate -Trend I Time versus Concentration Well ML-1 -- Jan-99 Jan-01 Jan-03 Time Jan-05 Jan-07 Jan-09 I-+-Sulfate -Trend I Timeversus Concentration Well MW-13 0 Jan- 92 Jan- 94 Jan- 96 Jan- 98 Jan- 00 Jan- 02 Jan- 04 Time I-+-Sulfate -Trend I Jan- 06 Jan- 08 Jan- 10 1200 ~1000CI §.800c0!600 "i 400uc :5 200 0 Jan- 90 20000 ::rr 15000c0i10000..-CIII §50000 Time versus Concentration WellMW-6 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 10 Time I-+-Sulfate -TrendI Time versus Concentration Well OW-UT-9 0 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 90 92 94 96 98 00 02 04 06 08 10 Time I-+-Sulfate -Trend I ----------.-------.. Time versus Concentration Well RL-1 1400 ::J 1200 OJ .§.1000 S 800 ~600c ~400c 8 200 0 Jan-03 -1 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time [-+--Bicarbonate -Trend [ Time versus Concentration Well RL-3 2000 ::J :[1500c0 ~1000....-CGIg 5000 (.) . L 0 Jan-03 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Jan-10 Time L-+--Bicarbonate-Trend] Time versus Concentration Well RL-4 c:5000+-400~~300 ffi E200(.) c:1000 ()0 Jan- 03 I L Jan- 04 Jan- 05 Jan- 06 Jan- 07 Jan- 08 Jan- 09 Jan- 10 Time I-+--Bicarbonate-TrendI ,-------- c 600 .Q 500~:::J 400 1:~300~g 200 §100 ()0' I Jan- 03L I I 400 ::i 350 ~300 -;2500 ;;200I!! 1:150 IIIg 100 8 50 0 Jan-03 --------------------------- 1400 ~1200CI .§.1000 .2 800 ~600c~400c8200 0 Jan-03 Time versus Concentration Well RL-5 .... Jan- 10 ..... ..... Jan- 04 Jan- OS Jan- 06 Jan- 09 Time ~Bi~~~~~-I Time versus Concentration Well RL-6 Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Time Jan-10 I-+-Bicarbonate-Trend I Time versus Concentration Well EF..JA Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Time Jan-10 1---;-BiCarb~n~te==-Tr~~dl 8i;j I Jan-Jan- 07 08 Time versus Concentration Well a::-6 700 :::;600 l 500 .§400 !300'E B 200c8100 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-OS Jan-DB Jan-10 Time I-+-Bicarbonate -TrendI [ I I ~600 t -- g 500 c I ~400 t I ~300~c8 200 , Jan-Jan-Jan-Jan-Jan- 90 92 94 96 98 Timeversus Concentration Wella::-8 . . I t'V ~~!~"""\# Ja~Ja~Ja~Ja~Ja~Ja~ 00 02 04 06 08 10 lime I-+-Bicarbonate -Trend I [ I I 400I~ I g 350 I I Time versus Concentration WeIlH-63 c0 ii 300~-CIII §250 [ 0 200 J Jan-03 T. I-+-Bicarbonate -Trend I I Jan-10 I I I j Jan-04 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Time ~--~-~~---~~~----- 500 - ~450 i §.400 :5 350 ~300c ~250c <3 200 150 Jan-03 Time versus Concentration Well LW-1 Jan-10Jan-Q4 Jan-05 Jan-06 Jan-07 Jan-08 Jan-09 Time 1-.-Bicarbonate-Trend I Time versus Concentration Well ML-1 300 ::J'Q 280.s g 260 -=:"~240(IIu g 2200 200 --! Jan-97 -1 Jan-99 Jan-01 Jan-03 Time Jan-05 Jan-07 Jan-09 r~~~~~I .Bicarbonate-T~~-ndl .-.275..J ~255 g 235 -=:"~215(II g 1950 0 175 ~ Jan- 92 Time versus Concentration Well MW-13 j~J ----~i I I I I I L___~_- 1 !;i -!, Jan- 94 Jan- 96 Jan- 98 Jan- 00 Jan- 02 Jan- 04 Jan- 06 Jan- 08 Jan- 10 Time 1-.-Bicarbonate-Trend J 400 ~350OJ §.300 g 250 ~200~150 ~100c8500 Jan-Jan-Jan- 90 92 94 Time versus Concentration Well MW-5 I l I I 130000Ii25000~200000 ~15000 ~10000u55000 I u 0 Jan- 90 Time Jan-Jan- 08 10 Jan-Jan-Jan-Jan-Jan-Jan- 96 98 00 02 04 06 j--+-Bicarbonate-Trend I Time versus Concentration Well OW-UT-9 Jan- 10 Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan-Jan- 92 94 96 98 00 02 04 06 08 Time I--+-Bicarbonate-Trend III ..............!t --'It...... r ....'1 y I I Appendix 3 Depth To Water Over Time For The Wells Rio Algom Mining LLC-Lisbon site 1sl Half 2009 Groundwater Monitoring Report Page 7 Depth toWater Well RL-1 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth toWater I Depth to Water Well RL-3 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 [-+-Depth to Water I ----------------------------- ; t ; 1\ii ; ii I ! ,, -------------- .i J............!! !i i I ii i i i,, Depth to Water Well RL-4 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I Depth to Water Well RL-5 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depthto WaterI ------------------------ ..... I Ii'"'''''''''-'-',", ! I I I I Depth to Water Well RL~ 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depthto Water I Depth to Water WellEF-3A Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I i iI ! ji ! Ji ! i iJ I...'""'"'i Depth to Water Well EF-6 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depthto Water I Depth to Water Well EF-8 200 180 160 140 120 100 80 60 40 20 0 Jan-90 m ---------------------------- Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I i I! i - ..... I, 200 180 160 140 120 100 80 60 40 20 0 Jan-90 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Depth to Water Well H-63 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I Depth to Water Well LW-1 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depthto WaterI --------------------. .. ??'..........T . I , J I ..'..I I I I I I I I 200 180 160 140 120 100 80 60 40 20 0 Jan-90 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Depth to Water Well ML-1 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I Depth to Water Well MW-13 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I -------------- I ! i I ........i ..... ,, I I, ¥. I I Depth to Water Well MW-5 200 180 160 140 120 100 80 60 40 20 0 Jan-90 Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I Depth to Water Well OW-UT-9 200 180 160 140 120 100 80 60 40 20 0 Jan-90 .~~"".U.. Jan-92 Jan-94 Jan-96 Jan-98 Jan-OO Jan-02 Jan-04 Jan-06 Jan-08 Jan-10 I-+-Depth to Water I --------I ....' I i I Appendix 4 Hydrographs For The Wells Rio Algom Mining LLC-Lisbon site 1slHalf 2009 Groundwater Monitoring Report Page 8 ::! 3 (1) m~CD c-O Q)::]IaU> m 01 ~a feet m 01 U)a m0101a m 01ma m01'-Ia m01 I\)a m01~a m01aa C-Q)::] Ia01 :e Q):ear CD ""'I=m:;aiD. feet m CJ1 I\.) 0 m CJ1m0 m~ (() 0 m CJ1 0 0 m CJ1 ~ 0 m CJ1 C".) 0 m CJ1~ 0 m CJ1 CJ1 0 C-O) ::::JIa01 :e :es- CD .,=m;ocr. c-O D)::JIac.v m~ «) 0 m0100 m 01 ~ 0 m 01 I'\) 0 m 01 U,) 0 m01~0 m 01 01 0 m 01m0 C-D)::J Ia01 :e :eS-(I)'""I =m ;Om.< ~a -.0:::JC-D)::JIaJ C-D)::JIaco I II ). I II I I i I I I II - .I I I I I \I I, I ! J I ::!3 (1) m~ 00 c-O0>::JIaU> feet m01 I\) 0 m01m0 m~ CD0 m 01 0 0 m01 ~ 0 m01W0 m01 ~0 m 01 01 0 C- O>::J Ia01 :e Q.):ear CD ...=m AJi".<.Q.) CJ'It!. 0 ~C-O)::JIa"" C- O>::JIaCD I .", t I I,I I II II I.II,II, \ I I I I I ! J I I, I! I m m~~ 0 ~ C-0 0 D)::JIa~ C- D)::J -Ia(J) ::!3 (I) C- D)::J -.JIIa ex> C- D)::JI~ 0 feet mmmmmmmmm~~~~~~~~O'I~U)~0'1 m J 00 to 0 000000000 ~ :ES- CD ..,=m ;oi)r- ~'Q~'5r~, to/.t)6' C))"- to/.'Oe~ ~'O ~~ ~'Q ~(9 ~'Q ~\9~, 70 m CD<m=: 0:J feet mmmmmmmmmmmm ~~~~~~~~0'10'10'10'1 1\)u)~O'1m J(X)«)O~I\)U) 000000000000 ~ ~CD-..,- m!:!!.,,(1)I <wm»~0::::J + ~ Q)...... <D~m <D<Q)...... 0::J ~ ~'&~V ~\9~7 ~\9 ~~ ~\9~0> ~'&~')T ~'& ~~ ~'&~5' ~\9 ~~ ~'& ~6> ~'& ~~~, ::!<./.00 3 ~~(I)'0~7~, <./.~ ~~ <./.Y;a ~~ <./.'0')7' ~~ <./.'06' ~~ <./.Y;e~ ~y; ~~ ~)2 ~C9~, <./.0..9 ~~'/;0 feet mmmmmmmmmmm ~~~~~~0101010101 ~01m lOOc.oO~I\.)(J.)~ 00000000000 :e Q):ear CD ....=mm(i),, ~'Q~'5l'~, ~°6'~ ~'Q~~~, <./.°.>~ ~'Q~C9 ~'Q ~\9~, 70 m (I)<Q.)=:0::J feet mmmmmmmmmmm ~~~~~~0'10'10'10'10'1 ~O'1m"-lOO(!)O~I\.)U>~ 00000000000 ~Q) ~<D (I)""=m mCi).,,-? ~'O~~ ~'O~U> ~'Q~"iT~, ~°6' <$>-? ~'0(5\~ ~'O~~ ~'Q~(9 ~'Q~\9~, 70 m CJ'1 CJ'1a feet m CJ'1ma m CJ'1 ........a m CJ'1 00a =e Q):eat (I)...=m:I:(i) I <<»Q)W.....-.0::s c....-I Q)-.:J3ICD0en m01~ c ° Q):JI00> m01m° feet m01 ...... 0 m 01 (() 0 mma° m01ex>a m01 01 0 c.... Q):JI0 I :e :e!!.CD~ =m.-:e~.Q)~,...-.0~ c....Q):JI0CD c....Q):JI~0 I ,, I I I . I I I I I I. I I I I, (J') ~ CJ1 0 (J') ~ (J') 0 feet (J') ~ J 0 (J') ~ (X) 0 (J') ~ CD 0 (J') CJ1 0 0 ~ ~;.CD '"'I =m 3:a>.::JI :j c.... 00)3 ::JCDI c.... 00) 01::JI c.... 00) O>::JI c.... 00) ""-J::JI c.... 00) CD::JI c.... 00) CO::JI c.... O)O::JI 0> 0'1 v.> 0 0> 0'1 ~ 0 feet 0> 0'1 0'1 0 0> 0'1 0> 0 0> 0'1'-I 0 0> 0'1 00 0 ~~(I)(I)=" s:!!! ~~~Q) w~0::s 0> 0'1I\.) 0C- (X)0) --...I::JI C- (X)0) <D::JI C- <DO)-3..::JI C-<DO)U>::JI C- <DO)O1::JI C- <DO)--...I::JI ::!C-3 <DO)CD <D::JI C-00)-3..::JI C- 00)U>::JI C- OO)O1::JI C-OO) --...I::JI C-OO)<D::JI m 01mc-Om::JI (0 a m 01 J0 c-m::JI (0 )\J c-m::JI (0 .t=.. c-m::JI (00> c-m::JI(0 co c--I m-.::J3ICDaa c-m::JIa)\J c-m::JIa .t=.. c-m::JIa0> c-m::JIaco c-m::JI...Jo. 0 m 01 ex> 0 feet m 01 CD 0 mm00 mm ~ 0 mmI\J0 :E :E;.CD ..,=m i:(i):E<.!.CJ1-.0;j m01m ~O Q) :JICDa m 01~0 m0100 0 ~ Q) :JICD J\.) ~ Q) :J ICD~ ~ Q) :J,CD 0> ~ Q) :J,CDco ~-I Q)-.:J3ICDaa ~ Q) :J,aJ\.) ~Q) :J,a~ ~Q):JIa0> ~ Q):J,aco ~ Q):JI--\. 0 feet m01co0 mm00 mm~0 mmI\)0 :E~CD....=CD 0'" ~~c:<-IaI -.coO::::J Appendix 5 Field Data Sheets Including Field Parameter Measurements RioAlgom Mining LLC-lisbon site 1sl Half2009Groundwater MonitoringReport Page 9 ~,~~\v~~~tPr-\'\~~v~-D~-A.& MONITORING WELL SAMPLING FORM START PUfJH~oqsS IOI~ ~'J;r,~r/ J~~ ProjectName:Rio-AlgomMine-Lisbon ProjectNo.:/y ;~.."Employee Name:...?t.'c i '''.j.;' ..,f A r,'-', Date:J id!.t-~U'7 T..6 ~-Ime:_~::J 1 ,0/Page ofSTOPPG!iF SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:L-D Static Water level:IS:',S(P -\S~.l,1 -1'5;;.1 f -!S::..q ~- Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level:2 ~h ' STABILIZATIONCRITERIA: pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1stQIr2009-LisbonWaterSampleForms.xlS WEllCONSTRUCTIONDETAilS:WELL NO.:MW-5 TOTAL DEPTH:197.25'Monitoring Well Location Sketch-----' CASINGDIAMETER:5-inch SCREENINTERVAL:Readings from October 2008 /' Water Depth -154.09' Total Depth -197.28' WELL HEADCONDITION:Water Depth: poor fair good (circle)Total Depth (A):if/r;,3 feet Pump was set @185' A-8=C Waterdepth(B):/53,1JC feetBTOC 95 psi ----15 second exhaust-A5Sec.pressure cycle C *(Note)=D WaterColumn(C):feet 11.- Casing Volume (D):gallons Note:2"=0.16gift;4"=0.65gift;5"=1.0gift;and6"=1.5gift NOTE WATER FOR:color,cloudy (sediment)etc. IVieasurement taken from Top of Weli Casing -Depth Adjustment =-1.00'[M.(XI/-- well PurgingMethod:BladderPump Purge Vol.:Ct,V Liters PurgeVol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)DO%REMARKS(feet BTOC)(liters/min)(liters)(°C)(uS/em) Start Pump ------Adjust flow rate \\)OC4,!Sq."LiD C1,\vLJ£JG,01 \J,Oiq0,.,,1:\ H)Q , q,':i 11 ,"9:C::O,IIn,=\iJ dd-€.::> l fJl ,I G\\1,a.h IS ,-;°d$-i.">7,fj lei1/'I !L\\Y).';,f'"JS\';",02J \,\'-..1,-),j lof'I '->;.\,.)h 1 (,3lt .:-,.,.,.:"."i C>i.:. J t!I c,,'\.I ,:,I .J .:f.)<o,"',I.L.//I i''i"h ''''_f,,> ! \/ll)v .L \'NY Sample No.Time Sampling Method Container Analysis Required ft;'£1 f;>,';d5 Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. START PUIVIP-illJ STOP PUMP W::i:& .>(;, {;jfF MONITORING WELL SAMPLING FORM SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~~ lOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval: Static Water Level:ILllo.~l,-\LII...,S -)~Io.S v -Ilj{p.lfl}-I Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level:-;)... STABILIZATIONCRITERIA: 9 pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%ofreading or 0.2 mg/l ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xlS ProjectName:Rio-AlgomMine-Lisbon Date:0 :;;:-J..t.ia.? Project No.:Time:\\1\ ./'.1 ',.f;.1 ,,(<""/'4.Page ofEmployeeName:I-1'/1' WELL CONSTRUCTIONDETAilS:WELLNO.:LW-1 TOTALDEPTH:223.12'Monitoring Well Location Sketch CASINGDIAMETER:4-inch /SCREEN INTERVAL:Readings from October 2008 Water Depth -146.79' Total Depth -223.00' WELL HEADCONDITION:Water Depth:Hlt.::;;q poor fair good (circle)Total Depth (A):..2d .\S feet Pump was set @ 215' A-B=C Water depth (B):feetBTOC 110 psi ----15 second exhaust-15 sec.pressure cycle C *(Note)=D WaterColumn (C):feet Casing Volume (D):gallons Note:2"=0.16gift:4"=0.65gift;5"=1.0gift;and6"=1.5gift NOTEWATER FOR:color,cloudy (sediment)etc. MeasurementtakenfrontTopof Well Casing -DepthAdjustment".135'OA.-- IWeli PurgingMethod:BladderPump Purge Vol.:q .0 Liters PurgeVol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)00%REMARKS (feet BTOC)(Iiters/min)(liters)("C)(uS/em) Start Pump ------Adjust flow rate 1\'.42-i4-lo,4-Ct D,w /1.'5 1,&5s3 3-1 39./---'. 1/Lj 3d.38.Lj-II4 1 7,5(:,0 (I t!I..{I Li '"c:u Q ...,..,.,38?<V'....-or',-"'''0 \/'/ 1!5 f 11.2r 7.5'S 5[)32..-1 68.Z-C,bJrf:'1,}-"//.J1-Ji-'" 1 // q ,0 \("'o' SampleNo.Time SamplingMethod Container AnalysisRequired LW-I /l4t}BladderPump 3 Poly SeeCOCo2filteredand 1 nonfiltered. _. ~'\.\\. ~\".i!l) ~\L~y)'"Y"/'-..\ .-", MONITORING WELL SAMPLING FORM START PUIv1P !~!5 STOP PUMP -13-52..", "'}~,./ ?\.,A f,-II;"}-'.¥~, d.4 Project Name:Rio-Algom Mine-Lisbon Project No.: EmployeeNameL~;;~~i).,b \.\ 9ate:::j.-01 I.}- Time:I 2.S 0 .,/\JPage of SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: WettedScreenInterval::J..O I Static Water Level:IS Lv.7V -161..0.1 +-\S l,..17v -\S~,l4 - MaximumDrawdownDepth=10%ofWettedScreenInterval+StaticWaterLevel:4J 1 STABILIZATIONCRITERIA: pH +/-0.2 pH units Conductivity +/-3%of reading D.O,+/-10%of reading or 0.2 mglL ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xLS WELL CONSTRUCTIONDETAILS:WELL NO.:RL-4 TOTAL DEPTH:178.20'Monitoring Well Location Sketchf---' CASINGDIAMETER:5-inch SCREENINTERVAL:Readings from October 2008 /Water Depth -156.84' Total Depth..178.20' WELL HEADCONDITION:Water Depth:f G{,.;.8,1 poor fair good (circle)TotalDepth(A):1'78./3 feet Pump was set @ 172' A-B=C Water depth (B):\(P.t feetBTOC 90 psi ----25 second exhaust-15 sec.pressure cycle C *(Note)=D WaterColumn(C):feet CasingVolume(D):gallons Note:2"=0.16gift;4"=0.65gift;5"=1.0gift:and6"=1.5gift NOTE WATER FOR:color,cloudy (sediment)etc. lv1easurernenttakenfrornTopofWe!!Casing-Depth,tldjustrnent=,140' Well Purging Method:Bladder Pump Purge VOI.:1.!h.B.Liters Purge Vol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)DO%REMARKS (feet BTOC)(Iiters/min)(liters)(°C)(uS/em) Start Pump IJ57.1 ,W ------Adjustflowrate II gc;D \I 11/1 15'/'"'(Iq dt,;'SV i(i,lI,..--- t;r)"P.I !}),I,;7O ..t#v f,g,'c.,, I ,'"j I;'r ',,s ..,:'.t[I '":'\3i"f J I';fe".. J c;h't ."!;,r:J 7(9,?tf(J .-::<.<:"'Y',(,.'J (..,..' It:i 1-3,1.Cj f::,7():,J..5f:;7,1 S()')t,..- \//,II'V JJ,-;9J ILJi SampleNo.!Time SamplingMethod Container AnalysisRequired k'L-Li !4 r;BladderPump 3Poly SeeCOCo2filteredand1nonfiltered, -\/4/4- I XJ ~....It. \'A J~,,!!} :I ~RT F'UMP ~... - . ~ . :l . \\2 \\Y' v T-!P PUMP --L Y ~~-~ MONITORING WELL SAMPLING FORM Project Name:Rio-Algom Mine-Lisbon Project No.: Employee pate:~V 1.~~iJ?4 Time:I 'I!j, Page of SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~J.--...------.-- LOW-FLOW PURGE/SAMPLE INFORMATION: STABILIZATION CRITERIA: pH +/-0.2 pH units Conductivity +1-3%of reading D.O.+1-10%of reading or 0.2 mg/L ORP +1-20mV 1st Qtr 2009-Lisbon Water Sample Forms,XLS WELL CONSTRUCTIONDETAILS:WELL NO.:RL-6 TOTAL DEPTH:19.91'Monitoring Well Location Sketch . CASINGDIAMETER:5-inch SCREENINTERVAL:Readingsfrom October2008 /Water Depth -16.82' Total Depth -19.19' WELL HEADCONDITION:Water Depth:I.P.,A / poor fair good (circle)Total Depth (A):9 ./c;feet Pumped with small electric pump connected to cell-- A-B=C Waterdepth(B):1<,p,feetBTOC 5"casing -water column 3.80'x 3 C *(Note)=D WaterColumn(C):feet Standard 3 casing Volumn Purge @ 2 GPM CasingVolume(D):gallons 11.4 gals x 3.85 liters per gal =43.89 liters Note:2"=0.16 gift;4"=0.65 gift;5"=1.0gift;and 6"=1.5gift 'I.?::O,',sJ ::, Measurement taken from Top of Well Casing -Depth Adjustment =-1.55'NOTE WATER FOR color,cloudy (sediment)etc. ek.IWell Purging Method:Geosub Purge VOI.:Liters Purge Vol.:Gallons I WELL PURGINGAND RECOVERYANALYSIS: Time GW Depth PurgeRate Vol.Temp.pH Condo ORP(mV)DO%REMARKS(feetBTOC)(liters/min)(liters)('C)(uS/cm) StartPump \,e;L\t-tk Ill'------Adjustflow rate )1.\\.'-(0 , lOa-/,l Iql 19:>I -J-7 9,- )41 10,J '),I Ci7U-It>D n,l I ljl,'S [t?5 (.J 1 I q&9 17'"ru I L/lJ,o,II.t;').I jC:)("tP J""1A 17,1",(v'"A,'An\.\ I Ct.tA I t[ SampleNo.Time SamplingMethod Container AnalysisRequired I2L,('45T'J Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. WettedScreenInterval:3 StaticWaterLevel:-----IMaximumDrawdownDepth=10%of Wetted Screen Interval +Static Water Level: CT,LRT P 'f,P IW:l '~)'P "'U:'~'-'-I 5 ~o.v .~,I ,VII ----1--- \~...'/\.~(:.. ~1\. . "'"' .'C \!~,~jc.' ;\\\.i \d'~ MONITORING WELL SAMPLING FORM SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:d.O ~..~.. Static Water Level:I':1;1...J.~~1£:)1,;)$-1S'J,3D r-\S1.~O / Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level:,)..L(-\-" STABILIZATIONCRITERIA:. IStt.).S pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Otr 2009-Lisbon Water Sample Forms.XLS F.'rojectName:Rio-Algom Mine-Lisbon Date:;'c',,f'j,); Time:/5"0: ,- Project No.: Employee Name:Page of WELL CONSTRUCTIONDETAILS:WELLNO.:RL-5 TOTALDEPTH:186.20'Monitoring Well Location Sketch CASINGDIAMETER:4-inch SCREENINTERVAL:Readings from October 2008 /Water Depth -152.30' Total Depth -186.20' WELL HEAD CONDITION:Water Depth:JtS;;;,as poor fair good (circle)Total Depth (A):I {".;;,5 feet Pump was set@ 175' A-B=C I 90 psi ----20 second exhaust-15 sec.pressure cycleWaterdepth(B):feet BTOC C *(Note)=D WaterColumn(C):feet CasingVolume(D):gallons Note:2"=0.16gift:4"=0.65gift;5"=1.0gift;and6"=1.5gift i'>!OTE WATER FOR color,cloudy (sediment)etc. Measurement taken from Top of Well Casing -Depth f\djustrnel1l ".1.35' Well Purging Method:Bladder Pump Purge Vol.:Liters Purge Vol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mY)DO%REMARKS(feet BTOC)(liters/min)(liters)(OC)(uS/em) Start Pump i c::-,2.I ------Adjust flow rate...-..c....+- )t:;J !I\.1.<0 S.QQ AOD 7<:;.5I I S3;2....113>'7.C;l 1(1 .;to I BO.Ii.!. }r;;?'?-.I I\.\1.'0 (..I{.J-o)7'1'+' J54 !..":I.'!/,(5<:>\1 /7?O("'lC;,.J £(',J"Ai'vi" \1/u/I .!'0I/D I Nil Sample No.Time Sampling Method Container Analysis Required j(L-5 1531 Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. S''\RT PUiv,P I b d,0 STZ)O Pur'Jip ~ G(l.0 , ,"I , 'iJ }d'';" MONITORING WELL SAMPLING FORM Project No.:., Employee Name:--:i hr;,."'::~.J ~~~Dq Time:I (PO?) of Project Name:~o-AJ.9°m Mine-Lisbon SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.XLS WELLCONSTRUCTIONDETAILS:WELLNO.:MW-13 TOTALDEPTH:206.39'Monitoring Well Location Sketch CASINGDIAMETER:4-inch SCREENINTERVAL:Readings from October 2008 Water Depth-93.85'/Total Depth -206.44' WELL HEADCONDITION:Water Depth:Of.1 ,"'-i 4-.'l>':) poor fair good (circle)Total Depth (A):;:;'ni...u;;l.feet Pump was set @ 195' A-B=C Waterdepth(B):feet BTOC 95 psi ----15 second exhaust -15 sec.pressure cycle C *(Note)=D Water Column(C):feet CasingVolume(D):gallons Note:2"=0.16gift;4"=0.65gift;5"=1.0gift;and6"=1.5gift NOTE Wf\TER FOR color,cloudy (sediment)etc. iV,easurementtakenfran'Top of "veilCasing-DepthAdjustment=-2.35' IWellPurging Method:Bladder Pump Purge Vol.:1.J2.&..Liters Purge Vol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)DO%REMARKS(feet BTOC)(Iiters/min)(liters)('C)(uS/em) Start Pump Cj\[.,0 S ------Adjustflowrate 11 r>?:n !lb.1 1,S4-gtU,V'-.doE>"11 u"II I !;'fJ l,f'j ?i;i jC:D'I.R:;\.', "31 ID,O '153 b'f-q .Q::.;,b "? I;,>-t /,J 7 (:;"g IQCf I.est.,/"" '1(,,34-108 7/5/8e'1 fi!-''2.,<-.,..,,:,u-v'. \ I /\/1../'.,j 10 1.1 Ilfll'v SampleNo.Time SamplingMethod Container Analysis Required \'(\vJ-,\LP tp Bladder Pump 3 Poly See COCo 2 filtered and 1non filtered. Wetted Screen Interval:;:;"'0 StaticWaterLevel:()-q..i:W2o --4-,OO-,!!..j,G/.?i4-.Di)- Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level:\-q&.DJ,_._...-.-.-..-_._-.. MONITORING WELL SAMPLING FORM s~!"PT PU!VlPJJJ3 S~OP PUMP -DJ:l...Y 1\f/)\v . <II rI-.~\\1\ V J:'i"u Project Name:Rio-Algom Mine-Lisbon Project No.: EmployeeName:~f)A \tf'l\{I:\U\'\~ SAMPLING INFORMATION: ADDITIONAL INFORMATION: I Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xLS WELLCONSTRUCTIONDETAILS:WELLNO.:H-63 TOTALDEPTH:171.96'Monitoring Well Location Sketch CASINGDIAMETER:4-inch SCREENINTERVAL:Readings from October 2008 /Water Depth -135.74' Total Depth -171.98' WELL HEAD CONDITION:Water Depth:J;l.Jn.V poor fair good (circle)Total Depth(A):111/1 feet Pump was set @ 165' A-B=C Water depth (B):17,(",.n feet BTOC 100 psi ----20 second exhaust-15 sec.pressure cycle C *(Note)=D WaterColumn(C):feet Casing Volume (D):gallons Note:2"=0.16 gift;4"=0.65 gift;5"=1.0 gift;and 6"=1.5gift NOTE Water For:color,cloudy (sediment)etc fVleasurement taken from Top of Weii Shroud -Depth ,Ii,djustment =-2.50' ! WellPurgingMethod:BladderPump Purge Vol.:i Liters PurgeVol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mY)00%REMARKS (feet BTOC)(liters/min)(liters)(°C)(uS/em) Start Pump l J:1J .I.S ------Adjust flow rate i'1 'n./;..B.3 '°L\?Y }y-,.{c::;?I ..,;? IldG i ",'04\'oLl')41 },L{Vi \1 Q;D )"7 1J\i ILJ]d !;.f-D ,l./In'2:.-"/).5 'it'1.\"",lui;j \Ie:>dJ':i.nL //,-:5'.\ \/'\./I JIn,J.S .10 SampleNo.Time SamplingMethod Container AnalysisRequired \-t {,I 114 BladderPump 3 Poly SeeCOCo2filteredand 1 nonfiltered., MONITORING WELL SAMPLING FORM S','-'RT PL,v'iP '09 J12- 0COPPU'r ~~~ t .~.;{;}'/'..rI. a,'€i.",~. ..~\J1' rj SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:6.(/~\-. Static Water Level:t.1S,Sc,-4(P,\--1..{(,1,..-\-ilP.')...'" MaximumDrawdownDepth=10%ofWettedScreenInterval+StaticW~t;L~-;;~\...;~":..'-\1~~c;.~ STABILIZATIONCRITERIA: pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.XLS Proje!':Jame:RiocAlgom Minec Lisbon Date:-d'5-O'q Project No.:.q'-Time:\.-.';;.,() Employee Name:Q,:' . ...,f;/'Page oftL'''''''. WELL CONSTRUCTIONDETAILS:WELL NO.:ML-1 TOTAL DEPTH:157.23'Monitoring Well Location Sketchf----. CASING DIAMETER:4-inch.. SCREENINTERVAL:Readingsfrom October2008 Water Depth -45,96'ITotalDepth-157.22' WELL HEADCONDITION:Water Depth:WS,<1'1 poor fair good (circle)Total Depth (A):/S 7.:s feet Pump was set @ 150' A-B=C Waterdepth (B):feetBTOC 80 psi ---10 second exhaust -15 sec.pressure cycle C *(Note)=D WaterColumn(C):feet CasingVolume(D):gallons Note:2"0.16gift;4"0.65gift:5"1.0gift:and6"1.5gift iOTE WJ\TERFOR'color,cloudy(sediment)etc. MeasurementtakenfromTopot WellCasing-Depthji,djusiment=-1.23'-- IWell Purging Method:Bladder Pump Purge Vol.:Liters Purge Vol.:Gallons I WELL PURGINGANDRECOVERYANALYSIS: Time GW Depth PurgeRate Vol.Temp.pH Condo ORP(mV)00%REMARKS(feetBTOC)(Iiters/min)(liters)(°C)(uS/em) StartPump L\l..,1...,SD ------Adjustflowrate DC1la \l g"'I.I £)\'-\.q.iG,l 4.2-I,.,',. oq t}0;if)'T II \'tU i \L\l,01 'D?()'I,M I SOl If.pII I.I,)!:./ [».3 i .\"k l.s c/f..It.,-I lMO <::.'.I",,);1,..{):,.g."","\' \I ";,'. \J 1;.5 .YJJa;z SampleNo.Time SamplingMethod Container Analysis Required fY\L-\Dq L.L Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. MONITORING WELL SAMPLING FORM J{if,,i~i ::~~~lcPU:~P~°-~__h-\\)J' ;:;,'-.it"",-J,v,,-'/.12 3 S---d SAMPLING INFORMATION: Sample No. Br' Sampling Method ~Bladder Pump Container 3 Poly Analysis Required See COCo 2 filtered and 1non filtered. Qt-~ ~-! ADDITIONAL INFORMATION: ~ " ,. LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:JO ~. Static Water Level:~q..tfO ~04 ,'1Ct ~ec;lOCi-B -', Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level: STABILIZATION CRITERIA: -BS.l pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xLS Project Name:Rio-Algom Mine-Lisbon ."C "t1Date.)...j.;.I Project No.:'Time:o!1..S15-.,-I "i ! Employee Name:'f';,,.I .":,,-Page of WELL CONSTRUCTIONDETAILS:WELL NO.:EF-8 TOTAL DEPTH:244.15'Monitoring Well Location Sketch---.._-_.--_._..- CASINGDIAMETER:4-inch SCREENINTERVAL:Readings from October 2008 / Water Depth -86.29'jTotalDepth-244.17' WELL HEAD CONDITION:Water Depth:8 y-,lp q poor fair good (circle)Total Depth (A):J,;J.LI .n n feet Pump was set @ 230' A-B=C Water depth (B):lL I feet BTOC 120 psi --10 second exhaust -15 sec.pressure cycle C *(Note)=D WaterColumn(C):feet CasingVolume(D):gallons Note:2"=0.16 gift;4"=0.65 gift;5"=1.0 gift;and 6"=1.5 gift NOTE W/\TER FOR:color,cloudy (sediment)etc./" [v'ieasurefllen11aken iTom Top of Vveii Casing -Deptil ,c.dJustment =-2.30' IWell Purging Method:Bladder Pump Purge Vol.:Liters PurgeVol.:GallonsI WELL PURGINGANDRECOVERYANALYSIS: Time GW Depth PurgeRate Vol.Temp.pH Condo ORP(mV)DO%REMARKS(feetBTOC)(Iiters/min)(liters)(°C)(uS/em) Start Pump 66./5 .{.So ------Adjust flowrate IOP1 I (0.'1 '1.Ll..11-17 I€>S If.11 10/£3>().q 'I,(1/fo {J,7b 18&tf.72..I IntO,I \0,'1,('B Id--[/I>IR{,p rJ..b d / I o:La fo,S "1.lt fd.-7A fErn !.,)(lNhlu JrJbf) \ i ,/I I 'I ./ \\'An bl 1.)/>" n_-----m- MONITORING WELL SAMPLING FORM STi\PT P01'P ,I 0q I l -"...,STOP PUfv1i"_-1~ ~'-./),X.-,r1.\,Xl\-.\''.' .. '\,.. '?l\j}~'0' Project Name:Rio-Algom Mine-Lisbon ProjectNo.: Employee Name:'-::11'.'vd)eJ"v'~.L~ Time: Page SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:m 6J$i ~0J,qO~'6j.8''i''~81.8'.'-611'1 ~81.Tl StaticWaterLevel:00.'1'L -01.~\-e,L3D-61.l/11-B\SD~8\,S~-81.~1-8i,~c;,-8f.7o-B/.7V Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water level:-+;:).-BI<.q/.... STABILIZATIONCRITERIA: pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/l ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms,XLS WEll CONSTRUCTIONDETAilS:WELL NO.:EF-6 TOTAL DEPTH:137.29'Monitoring Well Location Sketch CASING DIAMETER:4-inch SCREEN INTERVAL:Readings from October 2008 Water Depth -83.30' Total Depth..137.20' \jWEllHEADCONDITION:Water Depth:gO.3.1 -- poor fair good (circle)Total Depth (A):1?7 .3'::..feet Pump was set @ 130' A-8=C Water depth(B):feetBTOC 70 psi ----12 second exhaust -15 see,pressure cycle C *(Note)=D Water Column(C):feet Casing Volume (D):gallons Note:2";0.16 gift;4";0.65 gift;5";1.0gift;and 6";1.5 gift !\)OTE VIlATER FOR color,cloudy(sediment)etc, tv!eaSUf&mem.ake crarr Top')!\NeiiCasing -DepthAdjustment=-1 93'V IWell PurgingMethod:BladderPump PurgeVol.:'5.'1 Liters PurgeVol.:GallonsI WEll PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)DO%REMARKS(feet BTOC)(Iiters/min)(liters)("C)(uS/em) Start Pump BI BCi .oo --..---Adjustflowrate U ,q ,q 1.h ;:).5;D JaD 6\j, !tW IQ.l 7.'.3,Q ,;,;-,:)it;,..,.""'"-.,,'\,,';;,..f II 'Z \j'!''":'"SDP ,fOci ,...,"'""\.:(,P,.':;' n 'l.."D ,\:;S.::J r ';{".,,""/-,..'"",,,," \\l,..- I iO,t)1,J"";5 t;I <--;",'.I "". ;1u--'/','.1 / \I \/J 5.1 SampleNo.Time SamplingMethod Container AnalysisRequired _EtA.?"lID Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. d (,(~-<:> { ~,t.." c}0f MONITORING WELL SAMPLING FORM ST(-\RTPUMP~~ STOP PUi/1P 1 d-sLP ProjectName:Rio-AlgomMine-Lisbon IDate:.,-de;~O'~ Project No.: EmployeeName{~A-i!~7.t,'-L.L:"':w._IPage of SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: WettedScreenInterval:''f--,*StaticWaterLevel:I7D,~o-\lD.<.t,4-.-11O,1~,-nD .1'2..-17D.7~-nO,79 Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level=-',~STABILIZATIONCRITERIA:--- pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xLS WELLCONSTRUCTIONDETAILS:WELL NO.:RL-3 TOTAL DEPTH:184.63'Monitoring Well Location Sketch CASING DIAMETER:4-inch SCREEN INTERVAL:Readings from October 2008 Water Depth -170.84'/1TotalDepth-184.57' WELLHEADCONDITION:Water Depth:nO,\06 poor fair good (circle)Total Depth(A):,..4 .<t,"l-feet Pump was set @ 178' A-B=C Waterdepth(B):feet BTOC 90 psi ----25 second exhaust-20 sec.pressure cycle C *(Note)=D WaterColumn(C):feet Casing Volume (D):gallons Note:2"=O.1Sglft;4"=O.SSgift;S"=1.0glft;andS"=1.Sglft rOTE WATERFOR:color,cloudy(sediment)etc. MeasurementtakenfromTopof Wsli Casing.Depth.Adjustment'".1.80' O' IWell Purging Method:Bladder Pump Purge Vol.:Liters PurgeVol.:Gallonsl WELLPURGINGAND RECOVERYANALYSIS: Time GWDepth PurgeRate Vol.Temp.pH Condo ORP(mV)DO%REMARKS(feetBTOC)(Iiters/min)(liters)CC)(uS/em) Start Pump I1.0;7q .'lDD ------Adjust flow rate 114Y 1\,L,'1,33 b!'ZD r......,"1'1iJ'r ;'-' )lttS If,3 7 ,3-lo lA-'7£>ISf::,/1,i \2-If(P 11.-3-'?,d,q S-i',v ,"..-,;,').r. II"lf7 iDn '7.?,t;'"",h:';0 !fs,(,.;;tflQ It.lit;;to,4-7.1 lv?DD t',f I CW.J\_,j,?qt.,.'-!\ / I 'I I 'I,.,. 5 \;JIJt?f' SampleNo.Time SamplingMethod Container AnalysisRequiredeL3-1:J.S:2 BladderPump 3 Poly SeeCOCo2 filteredand 1 nonfiltered. MONITORING WELL SAMPLING FORM START PUifJP I37 J..J STOP PlJ PoP /~S2. ,f) I i/l,j ,,., Y'j':;{ \. ,y: ,;.. !\ /jJ Project Name:Rio-Algom Mine-Lisbon Project No,:Time: (\.\"(.,,'.'",-Employee Name:,~\t,<\'>!.\{F''\\;"..\.,)0-/.)Page of SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: Wetted Screen Interval:;1..0 StaticWater Level:q;"B~-cr 2,g ~-q:<,8'1- MaximumDrawdownDepth=10%ofWettedScreenInterval+StaticWaterLevel: STABILIZATIONCRITERIA: 2.~-t -QY,8Q pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.XLS WELLCONSTRUCTIONDETAILS:WELLNO.:EF-3A TOTAL DEPTH:215.09'Monitoring Well Location Sketch CASINGDIAMETER:4-inch SCREENINTERVAL:--Readings from October 2008 /Water Depth -94.44' Total Depth -215.01' WELL HEADCONDITION:Water Depth:q ;;(,Sq poor fair good (circle)Total Depth (A):I '5,t.J.()feet Pump was set @ 205' A-B=C Waterdepth(B):C1 J.f3q feet BTOC 115 psi ---10 second exhaust -15 sec.pressure cycle C *(Note)=D WaterColumn(C):feet Casing Volume (D):gallons Note:2"=0.16 gift;4"=0.65 gift;5"=1.0 gift;and 6"=1.5 gift tOTE W,t\TER FOR color,cloudy (sediment)etc. fvieasurement taken from Top of Well Casi'lg .Deptl1AdJus!ment =-1.80' .f'f/ " In March 2008 -ORP was negative #-Antifobic conditions 0...",vIWellPurgingMethod:Bladder Pump Purge Vol.:Liters PurgeVol.:Gallonsl WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)00%REMARKS(feet BTOC)(Iiters/min)(liters)CC)(uS/em) Start Pump q2,q 10 ------Adjust flow rate ,46 I )I.1.1 ,.?B 7 qL(77 f.bI I?y(,;11.../'1,1-6 ,'-}SO 7S /Oi 1(1 II.7.iJ..1 19 elt)../j (f),S j UA 11.(p ',JS J-qJtJ >P'1l..qt {I/ I <,/Cj II.l}1..1.S 7Ct Dr.-(r;lA JO.O cv..",.-{)It.-./ '" \/ \/\i .i ,ft WtI '{;"to,'l SampleNo.Time SamplingMethod Container AnalysisRequired EF3-A-\5\Bladder Pump 3 Poly See COCo 2 filtered and 1 non filtered. MONITORING WELL SAMPLING FORM ST;-.p"r PUlViP~ STOP PUJ,/1P L5-3:S. \/' r;/\'.. ' .' ~fj:f ':Jd'lJflY' SAMPLING INFORMATION: ADDITIONAL INFORMATION: ~ LOW-FLOW PURGE/SAMPLE INFORMATION: WettedScreenInterval:'1 ~II (,.4-l.(. Static Water Level:11 (P .f -Ill,.2--/1£0.2.7--Ill"~--Wt.::;J ~1I!"'3..::S ~,-II (",~t"-1/(."3g ~/ilcA!-,~' Maximum Drawdown Depth =10%of Wetted Screen Interval +Static Water Level:J '7 ) STABILIZATIONCRITERIA: pH +/-0,2pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st QIr 2009-Lisbon Water Sample Forms.xLS Project Name:Rio-i\lgom Mine-Lisbon 3 1ft'DDate:.'O',y"L Project No.:Time'.'i Z;;!.,,;;;! Employee Name:Page of WELL CONSTRUCTIONDETAILS:WELL NO.:RL-1 TOTALDEPTH:123.51'Monitoring Well Location Sketch CASINGDIAMETER:5-inch SCREENINTERVAL:Readings from October 2008 /Water Depth -116.62' Total Depth-123.40' WELL HEAD CONDITION:Water Depth:\!,\q poor fair good (circle)TotalDepth(A):i;Z,lId..feet Pump was set @ -121.00' A-B=C Waterdepth(B):II tot \D.feetBTOC 70 psi ----30 second exhaust-12 sec.pressure cycle C *(Note)=D WaterColumn(C):feet (In March 2008 had to manually,turn pump off &let CasingVolume(D):gallons exhaust -1 minute then turn back on.) Note:2"=0.16gift:4"=0.65gift;5"=1.0gift;and6"=1.5gift Measuremeni taken from Top of Well Casing -Depth Adjustment =-1,30'NOTE WATER FOR color,cloudy (sediment),etc. \§JVWellPurgingMethod:BladderPump/Bailer PurgeVol.:6-.2 Liters PurgeVol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mY)DO%REMARKS(feet BTOC)(Iiters/min)(liters)(°C)(uS/em) Start Pump !f/;.42-,\;;:-",1)------Adjust flow rate ISDS i 11,1,7,IS 77t:30 .,(lil bW2-I I SOt::.!II 1 '7,c).i CCb.3Q ,;7q feU,;L! IOl i /I,j 1-018 qv .1:"'-t.,.L &d-s lC;ol?)\23 ?::;I 9,,"c;,:...I.j,\J «::, 'J 5D I'll?7?j ;',';(;,\""'";'"'.,/..,,;,-;i;,,\1 1 !;.)fc>l"i,>7 n."'''''',L::!..f(,(i \.'»c.",,'.j1..,1 k'"",""''''''''.."\, /\ \.I/,II I ,I -r' fh .tStS I iJlb'IfY SampleNo.Time SamplingMethod Container AnalysisRequired eL-,16/'r Bladder Pump 3Poly SeeCOCo2 filteredand1nonfiltered. el-I A (I,L-I A I B (AL ')" \/I 'IV, .. ' "... ',x f' .. . . ,SCI d-'.,,,, SThR'PlPC Ii.e 2.~\}v STOP PUJliP~_lf S~---CI MONITORING WELL SAMPLING FORM Project Name.:..Rio-Algom Mine-Lisbon Project No.: Employee Name: Time:I Page of SAMPLING INFORMATION: ADDITIONAL INFORMATION: I ,,"-<-..~-\\\' .''CV ""i ~v.\"'"c_.Ie'.'e,:>..''''" LOW-FLOWPURGE/SAMPLEINFORMATION: Wetted Screen Interval:I Static Water Level:~),W --rz.:s.~...\'2.:;,3 '1 -2.'.).ej['-Tl-~.4\~. MaximumDrawdownDepth=10%of WettedScreenInterval+StaticWaterLevel:-1.e,-!2J,110 STABILIZATIONCRITERIA: \\\\.": ] I B,()~c .:,t '~rt pH +/-0.2 pH units Conductivity +/-3%of reading D.O.+/-10%of reading or 0.2 mg/L ORP +/-20mV 1st Qtr 2009-Lisbon Water Sample Forms.xLS WELL CONSTRUCTIONDETAILS:WELL NO.:OW-UT-9 TOTAL DEPTH:141.74'Monitoring Well Location Sketch CASING DIAMETER:4-inch SCREEN INTERVAL:Readings from October 2008 Water Depth -123.67' Total Depth -141 .70' WELL HEADCONDITION:Water Depth:\a.,-:;;'.Lr., poor fair good (circle)TotalDepth(A):IWiO feet Pump was set @ 138' A-B=C Waterdepth(B):I")..feetBTOC 80 psi ----30 second exhaust -20 sec.pressure cycle C *(Note)=D WaterColumn(C):feet f----.CasingVolume(D):gallons Note:2";0.16 gift;4";0.65 gift;5";1.0gift;and6";1.5 gift NOTEVV!,TERFOR color,cloudy(sediment)etc. Measurementtaker:fromTopof WeHCasing-DepthAdjustmem=-1.30'0M»,-s.,.L_", Well Purging Method:Bladder Pump PurgeVOI.:Jf1..!i:..Liters PurgeVol.:Gallons I WELL PURGING AND RECOVERY ANALYSIS: Time GW Depth Purge Rate Vol.Temp.pH Condo ORP (mV)DO%REMARKS(feet BTOC)(Iiters/min)(liters)(OC)(uS/em) Start Pump ;",?.,r 4-Q ------Adjust flow rate ';<-tpy '';;.:''<');Z::.,'c.;..\6 f-;1 1../,L,I'-..P ' lG.,q , lo,t C1,-t\.£jr"Y .,n;;! I .;i /5,to Cji3(3Tf1D:J -/7"'-g.,{) !i I J,'-I ,..,,o 38':-)1 S I?""'""t.!, u-&6 I 10I J Q,6D 39yf{"{)-Jstl t/,t...I I ,,?;,10'"q,3VA')jA,1:,i '-;:;:;}/<,'\{).:" ...[\/r (t.-' I f \)'10,t.\\J..M, SampleNo.Time SamplingMethod Container AnalysisRequired OW -U-\-q I l/-A BladderPump 3Poly SeeCOCo2filteredand 1nonfiltered., ()\JJ-\A \-q t\\:/"L OW -\)"\-Cji\s..P&L.-'f Appendix 6 Laboratory Analytical Reports For 1st Half Of 2009 RioAlgom MiningllC-Usbon site 1sl Half2009Groundwater MonitoringReport Page 10 ENERG YLABORA TORIES,INC..2393 Salt CreekHighway(82601).Po.Box3258 <Casper,WY 82602 TollFree 888.235.0515 .307.235.0515 'Fax 307.234.1639 'casper@energylab.com <wwwenergylab.com ...-.--.--.. LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample 10: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-009 OW-UT-9 ~Revised Date: ReportDate: Collection Date: DateReceived: Matrix: 07/01/09 04/09/09 03/25/09 16:48 03/30109 Aqueous Qualifiers RL MCL/ QCL Method Analysis Date 1By D D 5 20 60 A2320 B E300.0 E300.0 04/07/0910:00/1jl 04/02/09 23:501 Ijl 04/02/0923:50/1jl 10 A2540 C 03/30109 16:281 rp D 0.003 0.1 0.001 0.0006 E200.8 E200.8 E200.8 E200.8 06/3010908:141 sml 04/01/09 14:051 ts 04/03/09 14:431 sml 04/03/09 14:431 smlD _.~-- Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. 0 -RL increased due to sample matrix interference. MCL -Maximum contaminant level. ND -Not detectedat the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 8410 mg/L Chloride 1220 mg/L Sulfate 9520 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 34900 mg/L METALS -DISSOLVED Arsenic 2.75 mg/L Molybdenum 47.9 mg/L Selenium 0.032 mg/L Uranium 82.5 mg/L ENERGY LABORATORIES,INC.2393 Salt CreekHighway(82601).Po.Box 3258 .Casper;WY 82602 TollFree 888.2350515 .301.2350515 .Fax 301.234.1639 'casper@energylab.com.www.energy/ab.com ~'.1~7-9=:"~0'f'"1;'\5('II iieit:;l.Jt:r.:.rl..,:U:i.* LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847-018 OW-UT-9A Revised Date: Report Date: Collection Date: DateReceived: Matrix: 07/01/09 04/09/09 03/25/09 16:48 03/30/09 Aqueous Report Definitions:RL -Analyte reporting limit. QCL -Quality control limit. D -RL increased due to sample matrix interference. MCL-Maximum contaminant level. ND-Notdetected at the reportinglimit. MCLI Analyses Result Units Qualifiers RL QCL Method Analysis Date1By METALS -DISSOLVED Arsenic 2.71 mg/L D 0.003 E200.8 06/3010903:341 sml ENERGY LABORATORIES,INC..2393 Salt CreekHighway(82601).Po.Box 3258 'Casper,WY 82602 Toll Free 888.235.0515 .307.235.0515 .Fax 307.234.1639 .casper@energylab.com.www.energylab.com 4 i ~",<",,:-,/{'C ',,', II~f~{"':'2 fL.]:?!.:1.'11 QA/QCS-ummary-Repo-rt Client:Rio Algom Mining Corporation LLC Project:Not Indicated Revised Date:07/01/09 Report Date:04/09/09 Work Order:C09030847 Qualifiers: RL -Analyte reporting limil.ND -Not detected at the reporting limit. Analyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual Method:E200.8 Batch:R120249 Sample ID:LRB Method Blank Run:ICPMS4-C_090629A 06/29/09 1144 Arsenic ND mg/L 5E-05 Sample ID:LFB Laboratory Fortified Blank Run:ICPMS4-C_090629A 06/29/09 11:51 Arsenic 0.0526 mg/L 0.0010 105 85 115 Sample 10:C09061035-005DMS4 Sample Matrix Spike Run:ICPMS4-C_090629A 06/30/09 09:08 Arsenic 0.0536 mg/L 0.0010 106 70 130 Sample ID:C09061035-005DMSD4 Sample MatrixSpike Duplicate Run:ICPMS4-C_090629A 06/30/09 09:15 Arsenic 0.0531 mg/L 0.0010 105 70 130 0.8 20 ENERG Y LABORA TORIES,INC..2393 Salt Creek Highway(82601).Po.Box 3258 'Casper,WY 82602 Toll Free 888.235.0515 .307235.0515 .Fax 3072341639 .casper@energylab.com.www.energylab.com CLIENT:Rio Algom Mining Corporation LLC Project:Not Indicated Sample Delivery Group:C09030847 Date:02-Jul-09 CASE NARRATIVE REVISED/SUPPLEMENTAL REPORT The attached analytical report has been revised from a previously submitted report due to a request by Chuck Wentz on June 26th,2009 for the reanalysis of Arsenic on samples C09030847-009 and -018.The data presented here is from that recheck analysis. ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE:4°C (:t2°C) Temperature of samples received may not be considered properly preserved by accepted standards.Samples that are hand delivered immediately after collection shall be considered acceptable if there is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for lowTDS waters.Data provided by this method for non potable waters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days).The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay.Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIUSOLID SAMPLES All samples reported on an as received basis unlessotherwise indicated. ATRAZINE,SIMAZINE AND PCB ANALYSIS USING EPA 505 Data for Atrazine and Simazine are reported from EPA 525.2,not from EPA 505.Data reported by ELI using EPA method 505 reflects the results for seven individual Aroclors.When the results for all seven are NO (not detected),the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required.If so,ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories,Inc.-Billings,MT eli-g -Energy Laboratories,Inc.-Gillette,WY eli-h -Energy Laboratories,Inc.-Helena,MT eli-r -Energy Laboratories,Inc.-Rapid City,SO eli-t -Energy Laboratories,Inc.-College Station,TX CERTIFICATIONS: USEPA:WYOOO02;FL-DOH NELAC:E87641;California:02118CA Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES,INC.-CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities.Some results requested by the client may not be covered under these certifications.All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin.Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service.For additional information and services visit our web page www.energylab.com. THIS IS THE FINAL PAGE OF THE LABORATORYANALYTICAL REPORT .~"~.,.<.y;"ENERGY LABORATORIES,INC..2393 Salt Creek Highway(82601).Po.Box3258.Casper,WY82602~~"".",I'R..TollFree 888.235.0515 .307.235.0515 .Fax 307.234.1639 .casper@energylab.com .www.energylab.com '6;;,:{e]:""rl.e]:I#f.:1I ANALYTICAL SUMMARY REPORT July 01,2009 Rio Algom Mining Corporation LLC Hwy 605 and 509 Grants,NM 87020 Workorder No.:C09030847 Project Name:Not Indicated Energy Laboratories,Inc.received the following 19 samples for Rio Algom Mining Corporation LLC on 3/30/2009 for analysis. Sample ID Client Sample ID Collect Date Receive Date Matrix Test C09030847-001 EF-3A Aqueous03/25/09 13:51 03/30/09 Metals by ICP/ICPMS,Dissolved Alkalinity E300.0 Anions Solids,Total Dissolved Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Same As Above Metals by ICP/lCPMS,Dissolved Same As Above As appropriate,any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the OAlOC Summary Report,or the Case Narrative. If you have any questions regarding these tests results,please call. Report Approved By:?t,~~~~-....imp Reporting Supervisor C09030847-002 EF-6 03/25/09 11:26 03/30/09 Aqueous C09030847-003 EF-8 03/25/09 10:22 03/30/09 Aqueous C09030847-004 H-63 03/24/09 17:43 03/30/09 Aqueous C09030847-005 LW-1 03/24/09 11:48 03/30/09 Aqueous C09030847-006 ML-1 03/25/0909:24 03/30/09 Aqueous C09030847-007 MW-13 03/24/09 16:36 03/30/09 Aqueous C09030847-008 MW-5 03/24/09 10:15 03/30/09 Aqueous C09030847-009 OW-UT-9 03/25/09 16:48 03/30/09 Aqueous C0903084 7-010 RL-1 03/25/09 15:17 03/30/09 Aqueous C09030847-011 RL-3 03/25/0912:52 03/30/09 Aqueous C09030847-012 RL-4 03/24/09 13:45 03/30/09 Aqueous C09030847-013 RL-5 03/24/09 15:37 03/30/09 Aqueous C0903084 7-014 RL-6 03/24/09 14:50 03/30/09 Aqueous C09030847-0150C-1 03/24/09 14:14 03/30/09 Aqueous C0903084 7-016 FD-1 03/25/09 10:22 03/30/09 Aqueous C09030847-0170C-2 03/25/09 10:44 03/30/09 Aqueous C09030847-018 OW-UT-9A 03/25/09 16:48 03/30/09 Aqueous C09030847-019 RL-1A 03/25/09 15:17 03/30/09 Aqueous ENERGYLABORATORIE5,INC..2393 Sa/t Creek Highway(82601),po.Box3258 .Casper,WY82602 Toll Free 888.2350515 .307235.0515 .Fax 307234.1639 .casper@energylab.com'www.energy/ab.coml,~"tt~{f:t/(o:~.~iiiiJl~~----'"~-- LABORATORY ANALYTICALREPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-001 EF-3A Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 13:51 03/30/09 Aqueous ?fC \.".(\.\ RL -Analyte reporting limit. QCL -Quality control limit. D -RL increased due to sample matrix interference. Report Definitions: Qualifiers MCLI QCL Analysis Date I ByMethodRL D D D MCL-Maximum contaminant level. ND -Notdetected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 1130 mg/L Chloride 833 mg/L Sulfate 2470 mg/L PHYSICAL PROPERTIES Solids,Total DissolvedTDS @ 180 C 6010 mg/L METALS -DISSOLVED Arsenic 0.079 mg/L-Molybdenum 1.4 mg/L .Selenium 0.035 mg/L 'Uranium 23.3 mg/L 5 A2320 B 04/03/0914:25/1jl 2 E300.0 04/02/0920:45 Iljl 6 E300.0 04/02/09 20:45 Iljl 10 A2540 C 03/3010916:25 I rp 0.001 E200.8 03/31/0904:341 ts 0.1 E200.8 03/31/0904:341 ts 0.001 E200.8 03/31/0904:341 ts 0.0003 E200.8 03/31/0904:341 ts }f/'"'ENERG Y LA BORA TORIES,INC..2393 Salt Creek Highway (82601),Po.Box 3258 .Casper,WY 82602 TollFree 888.2350515 .3012350515 .Fax 301234.1639 'casper@energylab.com'www.energylab.com ~:HJ$'.:.u...~]m~'iI LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847 -002 EF-6 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 11:26 03/30/09 Aqueous \'>"\\--.,1\ Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. D -RL increased due to sample matrix interference. MCL-Maximum contaminant level. ND-Notdetected at the reportinglimit. MCU Analyses Result Units Qualifiers RL QCL Method Analysis Date /By MAJOR IONS Bicarbonate as HC03 374 mg/L 5 A2320 B 04/03/09 14:32I Ijl Chloride 311 mg/L 1 E300.0 04/06/09 21:36I Ijl Sulfate 601 mg/L 1 E300.0 04/02/0921 :01Iljl PHYSICAL PROPERTIES Solids,Total DissolvedTDS @ 180 C 1650 mg/L 10 A2540 C 03/3010916:26I rp METALS -DISSOLVED Arsenic 0.009 mg/L 0.001 E200.8 03/31/0904:40 I ts Molybdenum ND mg/L 0.1 E200.8 03/31/09 04:40I ts Selenium 0.018 mg/L D 0.001 E200.8 03/31/09 04:40 I ts '-.Uranium 0.702 mg/L 0.0003 E200.8 03/31/0904:40 I ts ENERGY LABORATORIES,INC..2393 Salt Creek Highway(82601)'PO Box 3258 'Casper,WY82602 TollFree 888.235.0515 c 307235.0515 .Fax 307234.1639 'casper@energylab.com 'www.energylab.com -,,~.~-~,~~-,._-~,.,~-_o LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-003 EF-8 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 10:22 03/30/09 Aqueous Qualifiers RL MCLI QCL Method Analysis Date I By 5 1 1 A2320 B E300.0 E300.0 04/03/0915:04/1jl 04/02/0921:16Iljl 04/02/0921 :16/1jl 10 A2540 C 03/30109 16:26 I rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 12:58 I ts 04/01/09 12:581 ts 04/01/0912:581 ts 04/01/0912:581 ts ",'.,.).'.'",;\" Report RL-Analyte reporting limit. Definitions:QCL-Quality control limit. MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 283 mg/L Chloride 116 mg/L Sulfate 249 mg/L PHYSICAL PROPERTIES Solids,Total DissolvedTDS @ 180 C 813 mg/L METALS -DISSOLVED Arsenic 0.034 mg/L Molybdenum ND mg/L Selenium 0.009 mg/L ".Uranium 0.105 mg/L ENERGY LABORATORIES,INC..2393 Salt Creek Highway (82601).Po.Box 3258 .Casper,WY 82602 TollFree888.235.0515.307.2350515.Fax307.234.1639'casper@energylab.com'wwwenergylab.com If'-.,~-",--- ...(I v~:t((ffi..d! W':{~T:~JLflJ::(J:IoW LABORATORY ANALYTICALREPORT Client: Project: Lab ID: ClientSample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-004 H-63 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 17:43 03/30/09 Aqueous Qualifiers RL MCL/ QCL Method Analysis Date I By 5 1 1 A2320 B E300.0 E300.0 04/03/09 15:11Iljl 04/02/09 22:031Ijl 04/02/09 22:03Iljl 10 A2540 C 03/30109 16:26 1 rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 13:321 ts 04/01/09 13:32 1ts 04/03/09 13:141 sml 04/01/09 13:321 ts ','."-v.." Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL-Maximumcontaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 253 mg/L Chloride 72 mg/L Sulfate 180 mg/L PHYSICAL PROPERTIES Solids.Total DissolvedTDS @ 180 C 614 mg/L METALS -DISSOLVED Arsenic 0.068 mg/L Molybdenum ND mg/L Selenium 0.007 mg/L Uranium 0.0105 mg/L ----. r ,.ENERGY LABORATORIES,INC..2393SaltCreekHighway(82601).Po.Box3258 'Casper,WY82602 <TollFree 888.235.0515 .307.235.0515 .Fax 307.234.1639 'casper@energylab.com 'www.energylab.com ------ LABORATORYANALYTICALREPORT Client: Project: Lab 10: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-005 LW-1 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 11:48 03/30/09 Aqueous MAJOR IONS Bicarbonate as HC03 Chloride Sulfate Qualifiers RL MCL/ QCL Method Analysis Date 1ByAnalyses 5 1 1 A2320 B E300.0 E300.0 04/03/09 15:19 Iljl 04/02/09 22:18 Iljl 04/02/0922:18/1jl PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 340 mg/L 10 A2540 C 03/30109 16:27 1rp METALS -DISSOLVED Arsenic Molybdenum Selenium .Uranium ND mg/L ND mg/L 0.002 mg/L 0.0019 mg/L 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/0913:38/ts 04/01/09 13:381ts 04/03/0913:21/sml 04/01/09 13:381ts \.,.\ Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Result Units 203 mg/L 8 mg/L 100 mg/L !.'.~~i..,,,,t ENERGY LABORATORIES,ING..2393 Salt CreekHighway(82601),po.Box3258 'Casper,WY 82602 TollFree 888.2350515 .3072350515 .Fax 307234.1639 'casper@energylab.com .www.energylab.com.'~.o-" .f'-w;:,Y:{O!t:T.;W'7N/~"If LABORATORY ANALYTICALREPORT Client: Project: LablD: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-006 ML-1 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 09:24 03/30/09 Aqueous Qualifiers RL MCU QCL Method Analysis Date 1 By 5 1 1 A2320 B E300.0 E300.0 04/03/09 15:261 Ijl 04/02/09 22:33 1Ijl 04/02/0922:33/1jl 10 A2540 C 03/30109 16:27 1rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 13:451 ts 04/01/09 13:451 ts 04/03/09 13:281 sml 04/01/0913:451 ts ": Report Definitions:RL -Analyte reporting limit. QCL -Quality control limit. MCL-Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 248 mg/L Chloride 149 mg/L Sulfate 349 mg/L PHYSICAL PROPERTIES Solids,Total DissolvedTDS @ 180 C 990 mg/L METALS -DISSOLVED Arsenic 0.006 mg/L Molybdenum ND mg/L Selenium 0.010 mg/L .Uranium 0.0142 mg/L .;:''';.'ENERGYLABORATORIE~INC."2393SaltCreekHighway(82601)Po.Box3258 Casper,WY82602 'i ~>TollFree888.235.0515 "307235.0515 .Fax 307234.1639 .casper@energylab.com .www.energylab.com ~Iff.fP!,!rr..,!J:II:t."'!-~~-.,--~, LABORATORY ANALYTICALREPORT Client: Project: LablD: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-007 MW-13 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 16:36 03/30/09 Aqueous Qualifiers RL MCLt QCL Method Analysis Date I By 5 1 1 A2320 B E300.0 E300.0 04/03/09 15:36Iljl 04/02/09 22:49 Iljl 04/02/09 22:49Iljl 10 A2540 C 03/30109 16:27 I rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/0913:521 ts 04/01/09 13:52 I ts 04/03/09 14:221 sml 04/01/09 13:52 Its :s !~'--\ Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL -Maximumcontaminant level. NO-Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 242 mg/L Chloride 51 mg/L Sulfate 158 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180C 527 mg/L METALS -DISSOLVED '.Arsenic 0.028 mg/L .Molybdenum NO mg/L -Selenium 0.008 mg/L -Uranium 0.0154 mg/L ENERG Y LABORA TORIES,INC..2393 Salt Creek Highway(82601).Po.Box 3258 'Casper,WY 82602 TollFree 888.235.0515 '307.235.0515 'Fax 307.234.1639 .casper@energylab.com 'www.energylab.com/~;':=:A:".,~ ~':{O!~~I(r.tlI]N/;:f."..--.. LABORATORY ANALYTICALREPORT Client: Project: LablD: ClientSample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-008 MW-5 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/0910:15 03/30/09 Aqueous Analyses Result Units Qualifiers RL MCLI QCL Method Analysis Date 1 By MAJOR IONS Bicarbonate as HC03 Chloride Sulfate 317 10 738 mg/L mg/L mg/L 5 1 1 A2320 B E300.0 E300.0 04/03/09 15:45 1Ijl 04/02/09 23:04 1Ijl 04/02/09 23:04 1Ijl PHYSICAL PROPERTIES Solids,Total DissolvedTDS@ 180 C 1350 mg/L 10 A2540 C 03/30109 16:27 1rp METALS -DISSOLVED .Arsenic "Molybdenum -Selenium .Uranium ND mg/L ND mg/L 0.069 mg/L 0.0070 mg/L 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/0913:591 ts 04/0110913:591 ts 04/0310914:291 sml 04/01/09 13:591 ts 'i),f ,'< Report Definitions: RL -Analyte reporting limit. QCL.Qualitycontrollimit. MCL-Maximum contaminant level. ND-Not detected at the reportinglimit. r;:-~;2;"-~c-ENERGYLABORA TORIES.INC..2393SaltCreekHighway(82601),Pa.Box3258'Casper,WY82602 ",1:~:~:-,(.1 TollFree 888.2350515 .307.2350515 .Fax 307.234.1639 casper@energylab,com .wwwenergylab.com ~r:{.l;:~ti~-- LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-009 OW-UT-9 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 16:48 03/30/09 Aqueous ,I.' Qualifiers MCLI QCL Method Analysis Date I ByRL D D 5 20 60 A2320 B E300.0 E300.0 04/07/09 10:00Iljl 04/02/09 23:50 Iljl 04/02/09 23:50 Iljl 10 A2540 C 03/30109 16:28 I rp D 04/01/09 14:05/ts 04/01/0914:05/ts 04/03/0914:43/sml 04/03/0914:431 sml 0,002 0.1 0.001 0.0006 E200.8 E200,8 E200.8 E200,8D Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. D -RL increased due to sample matrix interference. MCL-Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 8410 mg/L Chloride 1220 mg/L Sulfate 9520 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180C 34900 mg/L METALS -DISSOLVED Arsenic 2.29 mg/L -.Molybdenum 47,9 mg/L-Selenium 0.032 mg/L.-Uranium 82.5 mg/L ENERGYLABORATORIE5,INC.'2393 Sa/tCreekHighway(82601)'PO Box3258 'Caspe;;WY82602 TollFree888.2350515 .307.2350515 .Fax 307234.1639 'casper@energylab.com'wwwenergylab.com LABORATORY ANALYTICALREPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-010 RL-1 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 15:17 03/30109 Aqueous Qualifiers RL MCL/ QCL Method Analysis Date 1By D D 5 2 6 A2320 B E300.0 E300.0 04/03/09 16:18 1Ijl 04/03/09 00:06 1Ijl 04/03/09 00:06 1Ijl 10 A2540 C 03/30109 16:28 1 rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/0914:121 ts 04/01/0914:12 I ts 04/03/0914:50 I sml 04/01/0914:121 ts .:;;:-t.t~..,.."\ Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. D -RL increased due to sample matrix interference. MCL-Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 1120 mg/L Chloride 671 mg/L Sulfate 4390 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 8460 mg/L METALS -DISSOLVED Arsenic 0.001 mg/L Molybdenum 10.7 mg/L Selenium 0.076 mg/L.-Uranium 44.8 mg/L ENERGY LABORATORIES,INC..2393 Salt CreekHighway(82601).Po.Box3258 .Caspe;;WY 82602 TollFree888.235.0515 '307.235.0515 'Fax 307.234.1639 'casper@energylab.com 'www.energylab.com LABORATORY ANALYTICAL REPORT Client: Project: Lab 10: Client Sample 10: Rio Algom Mining Corporation LLC Not Indicated C09030847-011 RL-3 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 12:52 03/30/09 Aqueous Qualifiers RL MCLI QCL Method Analysis Date I By D D 5 2 6 A2320 B E300.0 E300.0 04/03/09 16:35 Iljl 04/03/09 00:21 Iljl 04/03/0900:21/1jl 10 A2540 C 03/30109 16:28 I rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/0914:191 ts 04/01/09 14:191 ts 04/03/09 15:46 I sml 04/01/09 14:191 ts .' Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. 0 -RL increased due to sample matrix interference. MCL-Maximum contaminant level. ND -Notdetected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 873 mg/L Chloride 536 mg/L Sulfate 2880 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 5740 mg/L METALS -DISSOLVED Arsenic 0.002 mg/L Molybdenum 1.7 mg/L Selenium 0.059 mg/L Uranium 17.4 mg/L ENERGY LABORATORIE~INC..2393 Salt Creek Highway(82601).Po.Box 3258 .Casper,WY 82602 TollFree 888.235.0515 .307235.0515 .Fax 307234.1639 .casper@energylab.com'www.energylab.comL..~;.'~_-r / '~':{.Tm.rL.lI:;I;''' LABORATORY ANALYTICALREPORT Client: Project: Lab 10: Client Sample 10: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-012 RL-4 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 13:45 03/30/09 Aqueous \~\:L '~""\\ Report Definitions: RL-Analyte reporting limit. QCL-Qualitycontrollimit. MCL -Maximum contaminant level. ND -Not detected at the reporting limit. MCLI Analyses Result Units Qualifiers RL QCL Method Analysis DateI By MAJOR IONS Bicarbonate as HC03 219 mg/L 5 A2320 B 04/03/09 16:51/1jl Chloride 42 mg/L 1 E300.0 04/03/09 00:37 Iljl Sulfate 146 mg/L 1 E300.0 04/03/09 00:37 Iljl PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180C 506 mg/L 10 A2540 C 03/3010916:29 I rp METALS -DISSOLVED Arsenic ND mg/L 0.001 E200.8 04/01/0915:061 ts Molybdenum ND mg/L 0.1 E200.8 04/01/0915:061 ts Selenium 0.005 mg/L 0.001 E200.8 04/03/0915:531 sml --Uranium 0.0044 mg/L 0.0003 E200.8 04/01/0915:061 ts ENERG YLABORA TORIES,INC.'2393 Salt CreekHighway(82601),Po.Box 3258 'Casper,WY 82602 TollFree888.2350515 '3072350515 'Fax307234.1639'casper@energylab,com'wwwenergylab,com ---'~'" LABORATORY ANALYTICAL REPORT Client: Project: Lab 10: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847-013 RL-5 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 15:37 03/30/09 Aqueous Qualifiers RL MCL/ QCL Method Analysis Date 1 By 5 1 1 A2320 B E300,0 E300,0 04/03/09 17:071 Ijl 04/03/09 00:52 Iljl 04/03/09 00:52 1Ijl 10 A2540 C 03/30109 16:29 1rp 0,001 0,1 0,001 0,0003 E200,8 E200.8 E200.8 E200.8 04/01/0915:131 ts 04/01/0915:131 ts 04/03/0916:001 sml 04/01/0915:131 ts ",.,'.c ~.,'L Report Definitions:RL -Analyte reporting limit. QCL -Quality control limit. MCL -Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 236 mg/L Chloride 14 mg/L Sulfate 98 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180C 382 mg/L METALS -DISSOLVED Arsenic ND mg/L Molybdenum ND mg/L Selenium 0,003 mg/L-Uranium 0,0025 mg/L ENERG Y LA BORA rORIE~INC..2393 Salt CreekHighway (82601),Po.Box 3258 'Casper,WY 82602 TollFree888.2350515 '3072350515 'Fax 307234.1639 'casper@energylab.com'www.energylab.com -~-~-'---'-'-~-"--,,--~'-~-'--' LABORATORY ANALYTICALREPORT Client: Project: Lab ID: Client SampleID: Rio Algom Mining Corporation LLC Not Indicated C09030847-014 RL-6 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 14:50 03/30109 Aqueous Qualifiers RL MCL/ QCL Method Analysis Date 1By 5 1 1 A2320 B E300.0 E300.0 04/03/0917:14/1jl 04/03/09 01:381 Ijl 04/03/09 01:381 Ijl 10 A2540 C 03/30/09 16:29 1rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 15:201 ts 04/01/0915:201 ts 04/03/09 16:061 sml 04/01/09 15:201 ts \'\)C ,\ Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL-Maximum contaminant level. NO-Notdetected at the reportins limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 319 mg/L Chloride 31 mg/L Sulfate 919 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 1690 mg/L METALS -DISSOLVED Arsenic 0.001 mg/L Molybdenum NO mg/L Selenium 0.008 mg/L -Uranium 0.0189 mg/L ~:"".';C ~~ENERGYLABORATORIE5,INC..2393 Salt CreekHighway(82601)-po.Box3258 -Casper,WY82602 ,""(",,~TollFree 888,2350515 .3072350515 .Fax3072341639 'casper@energylab.com'www.energylab.com.:#I'.---"-c."--- LABORATORY ANALYTICALREPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C0903084 7-015 QC-1 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/24/09 14:14 03/30/09 Aqueous Analyses Result Units Qualifiers RL MCU QCL Method Analysis Date 1By MAJOR IONS Bicarbonate as HC03 Chloride Sulfate 6 ND ND mg/L mg/L mg/L 5 1 1 A2320 B E300.0 E300.0 04/03/09 17:19 Iljl 04/03/09 01 :54 1 Ijl 04/03/09 01 :54 1 Ijl PHYSICAL PROPERTIES Solids.TotalDissolvedTDS @ 180C 11 mg/L 10 A2540 C 03/30109 16:29 1rp METALS -DISSOLVED Arsenic Molybdenum Selenium Uranium ND mg/L ND mg/L ND mg/L 0.0008 mg/L 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 15:261 ts 04/01/09 15:261 ts 04/03/0916:131 sml 04/01/09 15:261 ts Report Definitions:RL -Analyte reporting limit. QCL -Quality control limit. MCL-Maximum contaminant level. ND -Not detected at the reporting limit. ENERGY LABORATORIES,INC.'2393 Salt Creek Highway(82601),po.Box 3258 'Caspe;;WY82602 TollFree888235.0515 '307.235.0515 Fax307.2341639 'casper@energylab.com'www.energylab.com --- LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847-016 FD-1 Report Definitions:RL -Analyte reporting limit. QCL -Quality contro/limit. MCL-Maximum contaminant level. ND -Not detected at the reporting limit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 286 mg/L Chloride 118 mg/L Sulfate 254 mg/L PHYSICAL PROPERTIES Solids,Total Dissolved TDS @ 180 C 826 mg/L METALS -DISSOLVED Arsenic 0.034 mg/L Molybdenum NO mg/L Selenium 0.008 mg/L Uranium 0.107 mg/L Report Date:04/09/09 Collection Date:03/25/09 10:22 DateReceived:03/30/09 Matrix:Aqueous MCLt Qualifiers RL QCL Method Analysis Date1By 5 A2320 B 04/03/09 17:271Ijl 1 E300.0 04/03/0902:09 I Ijl 1 E300.0 04/03/09 02:09I Ijl 10 A2540 C 03/3010916:30I rp 0.001 E200.8 04/01/0915:331 ts 0.1 E200.8 04/01/0915:331 ts 0.001 E200.8 04/03/0916:20 I sml 0.0003 E200.8 04/01/09 15:33I ts ENERGYLABORATORI£S,INC.'2393 SaltCreek Highway (82601)-PO Box3258 'Casper,WY82602 TollFree 888.235.0515 '307.235.0515 .Fax 307.234.1639 'casper@energylab.com'www.energylab.com LABORATORY ANALYTICAL REPORT Client: Project: LablD: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847-017 QC-2 Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 10:44 03/30/09 Aqueous Qualifiers RL MCLI QCL Method Analysis Date I By 5 1 1 A2320 B E300.0 E300.0 04/03/09 17:32Iljl 04/03/09 02:24Iljl 04/03/0902:24/1jl 10 A2540 C 03/30109 16:30 I rp 0.001 0.1 0.001 0.0003 E200.8 E200.8 E200.8 E200.8 04/01/09 15:40 I ts 04/01/0915:40 I ts 04/03/0917:151 sml 04/01/0915:40 I ts Report Definitions: RL-Analyte reporting limit. QCL -Quality control limit. MCL-Maximum contaminant level. ND-Notdetected at the reportinglimit. Analyses Result Units MAJOR IONS Bicarbonate as HC03 ND mg/L Chloride ND mg/L Sulfate ND mg/L PHYSICAL PROPERTIES Solids,Total DissolvedTDS @ 180 C ND mg/L METALS -DISSOLVED Arsenic ND mg/L Molybdenum ND mg/L Selenium ND mg/L Uranium ND mg/L £N£RGYLABORATORIES,INC..2393 SaltCreek Highway (82601)-po.Box3258 -Casper,WY82602 Toll Free 888.235.0515 .307235.0515 .Fax 307234.1839 .casper@energylab.com .www.energylab.com ~""'II;t'iPf,i r;~''''',\~ {/'ri "41Ji.(:..(ij;~.'." '1T.;':f..J:'-'V~];{/~" LABORATORY ANALYTICALREPORT Client: Project: Lab 10: Client Sample 10: Rio Algom Mining Corporation LLC Not Indicated C09030847-018 OW-UT-9A Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 16:48 03/30/09 Aqueous Analyses METALS -DISSOLVED Arsenic Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL -Maximum contaminant level. ND-Notdetected at the reportinglimit. MCU Result Units Qualifiers RL QCL Method Analysis Date I By 0.224 mg/L 0.001 E200.8 04/01/09 17:20/ts ENERG Y LA BORA TORIES,INC..2393 Salt Creek Highway (82601).Po.Box 3258 .Casper,WY 82602 TollFree 8882350515 .307.2350515 .Fax 307.234.1639 .casper@energylab.com'www.energylab.com.'7 .;,t ~1ffi.!:~r~'~ LABORATORY ANALYTICAL REPORT Client: Project: Lab ID: Client Sample ID: Rio Algom Mining Corporation LLC Not Indicated C09030847-019 RL-1A Report Date: Collection Date: DateReceived: Matrix: 04/09/09 03/25/09 15:17 03/30/09 Aqueous METALS -DISSOLVED Uranium 44.1 mg/L Analyses Result Units Report Definitions: RL -Analyte reporting limit. QCL -Quality control limit. MCL-Maximum contaminant level. NO-Notdetected at the reportinglimit. MCL/ Qualifiers RL QCl Method Analysis Date 1 By 0.0003 E200.8 04/07/09 17:571 ts ENERGYLABORATORIES,INC..2393 Salt CreekHighway(82601).Po.Box3258 .Casper,WY82602 TollFree 888.2350515 .307.2350515 .Fax 301.234.1639 .casper@energylab.com .www.energylab.com """'7"T-,.~.~.'''E'.' ft./'.i.::J ;:iC j"'..,i;,..".J....."-' g;.~'~rJ!~-.----.---. ANALYTICAL SUMMARY REPORT April 09,2009 Rio Algom Mining Corporation LLC Hwy 605 and 509 Grants,NM 87020 Workorder No.:C09030847 Project Name:Not Indicated Energy Laboratories,Inc.received the following 19 samples for Rio Algom Mining Corporation LLC on 3/30/2009 for analysis. Sample ID Client Sample ID Collect Date Receive Date Matrix Test As appropriate,any exceptions or problems with the analyses are noted in the Laboratory Analytical Report,the QA/QC Summary Report,or the Case Narrative. If you have any questions regarding these tests results,please call. Report Approved By: ---).. 2J1/'i?\n II/')Wc&CLJAf C09030847-001 EF-3A 03/25/09 13:51 03/30/09 Aqueous Metals by ICP/ICPMS,Dissolved Alkalinity E300.0 Anions Solids,Total Dissolved C09030847-002 EF-6 03/25/09 11:26 03/30/09 Aqueous Same As Above C09030847-003 EF-8 03/25/09 10:22 03/30/09 Aqueous Same As Above _....._-----._---------. C0903084 7-004 H-63 03/24/09 17:43 03/30/09 Aqueous Same As Above C0903084 7-005 LW-1 03/24/09 11:48 03/30/09 Aqueous Same As Above C09030847-006 ML-1 03/25/09 09:24 03/30/09 Aqueous Same As Above C0903084 7-007 MW-13 03/24/09 16:36 03/30/09 Aqueous Same As Above C0903084 7-008 MW-5 03/24/09 10:15 03/30/09 Aqueous Same As Above C09030847-009 OW-UT-9 03/25/09 16:48 03/30/09 Aqueous Same As Above C09030847-010 RL-1 03/25/09 15:17 03/30/09 Aqueous Same As Above C09030847-011 RL-3 03/25/09 12:52 03/30/09 Aqueous Same As Above C09030847-012 RL-4 03/24/09 13:45 03/30/09 Aqueous Same As Above C09030847-013 RL-5 03/24/09 15:37 03/30/09 Aqueous Same As Above C09030847-014 RL-6 03/24/09 14:50 03/30/09 Aqueous Same As Above C09030847-015 QC-1 03/24/09 14:14 03/30/09 Aqueous Same As Above C09030847-016 FD-1 03/25/09 10:22 03/30/09 Aqueous Same As Above C09030847-017 QC-2 03/25/09 10:44 03/30/09 Aqueous Same As Above------.----.--- C09030847-018 OW-UT-9A 03/25/09 16:48 03/30109 Aqueous Metals by ICP/lCPMS,Dissolved C09030847-019 RL-1A 03/25/09 15:17 03/30/09 Aqueous Same As Above ENERGY LABORATORIE~INC.'2393 Salt Creek Highway (82601).Po.Box 3258 .Casper,WY82602 Toll Free 888.235.0515 .307.235.0515 .Fax 307.234.1639 .casper@energylab.com .wwwenergylab.com ill';.r:i-.y:",-'I/l.eJ]rll #."Il --~-----~-OA/O-c-SummafYRepoft---_. Client:Rio Algom Mining Corporation LLC roject:Not Indicated Report Date:04/09/09 Work Order:C09030847 lualifiers: RL -Analyte reporting limit.NO -Not detected at the reporting limit. IAnalyte Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual I! i Method:A2320 B Batch:090407_1-TTR-ALK Sample 10:MBLK Method Blank Run:TTR-ALK_090407A 04/07/0909:27 Alkalinity,Total as CaC03 ND mg/L 0.2 Bicarbonate as HC03 ND mg/L 1 Sample 10:LCS1 Laboratory Control Sample Run:TTR-ALK_090407A 04/07/0909:43 Alkalinity,Total as CaC03 980 mg/L 5.0 98 90 110 Sample 10:LCS Laboratory Control Sample Run:TTR-ALK_090407A 04/07/0909:50 Alkalinity,Total as CaC03 244 mg/L 5.0 98 90 110 Sample ID:C09040124-001AMS Sample Matrix Spike Run:TTR-ALK_090407A 04/07/09 10:26 Alkalinity,Total as CaC03 1630 mg/L 5.0 107 80 120 Sample 10:C09040124-001AMSD Sample Matrix Spike Duplicate Run:TTR-ALK_090407A 04/07/0910:37 Alkalinity,Total as CaC03 1600 mg/L 5.0 95 80 120 1.9 20 Method:A2320 B Batch:R116604 Sample 10:MBLK Method Blank Run:MANTECH_090403A 04/03/09 10:56 Alkalinity,Total as CaC03 1 mg/L 0.2 Bicarbonate as HC03 1 mg/L 1 Sample 10:LCS1 Laboratory Control Sample Run:MANTECH_090403A 04/03/09 11:11 Alkalinity,Total as CaC03 206 mg/L 5.0 103 90 110 Sample ID:LCS Laboratory Control Sample Run:MANTECH_090403A 04/03/09 11:18 Alkalinity,Total as CaC03 53.1 mg/L 5.0 104 90 110 Sample ID:C09030847-010BMS Sample Matrix Spike Run:MANTECH_090403A 04/03/0916:27 Alkalinity,Total as CaC03 1050 mg/L 5.0 103 80 120 Sample ID:C09030847-011BDUP Sample Duplicate Run:MANTECH_090403A 04/03/0916:44 Alkalinity,Total as CaC03 721 mg/L 5.0 0.7 10 Bicarbonate as HC03 879 mg/L 5.0 0.7 10 ~f.iJ.Jf~r!~]~u:t...--~---~. ENERGY LABORATORIES,INC.'2393 SaltCreekHighway(82601).Po.Box 3258 .Casper,WY 82602 TollFree 888.235.0515 .307235.0515 .Fax 3072341639 .casper@energylab.com .www.energylab.com " ." QJUQC-Summary Report lualifiers: RL -Analyte reporting limit.ND-Notdetectedatthe reportinglimit. Client:Rio Algom Mining CorporationLLC Report Date:04/09/09 roject:Not Indicated Work Order:C09030847 IAnalyte I Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual J Method:A2540 C Batch:R116441 Sample 10:LCS1-Laboratory Control Sample Run:BAL-1_090330B 03/30/09 16:24 Solids,Total Dissolved TDS @ 180C 962 mg/L 10 96 90 110 Sample 10:MBLK1-Method Blank Run:BAL-1_090330B 03/30/09 16:25 Solids,Total Dissolved TDS @ 180C NO mg/L 6 Sample 10:C09030847-009AMS Sample Matrix Spike Run:BAL-1_090330B 03/30/0916:28 Solids,Total Dissolved TDS @ 180C 59400 mg/L 10 98 90 110 Sample 10:C09030847-009AMSO Sample Matrix Spike Duplicate Run:BAL-1_090330B 03/30/0916:28 Solids,Total Dissolved TDS @ 180 C 59000 mg/L 10 96 90 110 0.8 10 Method:E200.8 Batch:R116416 Sample 10:LRB Method Blank Run:ICPMS2-C_090330A 03/30/09 14:04 Arsenic NO mg/L 0.0003 Molybdenum ND mg/L 4E-05 Selenium ND mg/L 0.001 Uranium ND mg/L 8E-06 Sample 10:LFB Laboratory Fortified Blank Run:ICPMS2-C_090330A 03/30/09 14:11 :"rsenic 0.0517 mg/L 0.0010 103 85 115 Molybdenum 0.0508 mg/L 0.0010 102 85 115 Selenium 0.0528 mg/L 0.0014 106 85 115 Uranium 0.0516 mg/L 0.00030 103 85 115 Sample 10:C09030847-002CMS4 Sample Matrix Spike Run:ICPMS2-C_090330A 03/31/0904:47 Arsenic 0.274 mg/L 0.0010 106 70 130 Molybdenum 0.268 mg/L 0.10 106 70 130 Selenium 0.264 mg/L 0.0012 99 70 130 Uranium 0.919 mg/L 0.00030 87 70 130 Sample 10:C09030847-002CMSD4 Sample MatrixSpike Duplicate Run:ICPMS2-C_090330A 03/31/0905:21 Arsenic 0.274 mg/L 0.0010 106 70 130 0.1 20 Molybdenum 0.267 mg/L 0.10 106 70 130 0.5 20 Selenium 0.266 mg/L 0.0012 99 70 130 0.5 20 Uranium 0.975 mg/L 0.00030 110 70 130 5.9 20 ENERGYLABORATORIE5,INC.<2393 Salt CreekHighway(82601)-Po.Box3258 .Casper,WY82602 TollFree 888.235.0515 '3012350515 -Fax 301234.1639 -casper@energylab.com'www.energylab.com .~,...=."",.- ,t";t~e.(' m':{OUT...,i..im;4~ -aA7QC-SummaryRepon: Client:Rio Algom MiningCorporation LLC roject:Not Indicated Report Date:04/09/09 Work Order:C09030847 lualifiers: RL -Analyte reporting limit.ND -Not detected at the reporting limit. I IAnalyte Result Units RL %REC Low Limit High Limit RPO RPOLimit Qual Method:E200.B Batch:R116511 Sample 10:LRB Method Blank Run:ICPMS2-C_090401A 04/01/0912:04 Arsenic NO mg/L 0.0003 Molybdenum ND mg/L 4E-05 Selenium NO mg/L 0.001 Uranium ND mg/L 8E-06 Sample ID:LFB Laboratory Fortified Blank Run:ICPMS2-C_090401A 04/01/09 12:10 Arsenic 0.0491 mg/L 0.0010 98 85 115 Molybdenum 0.0495 mg/L 0.0010 99 85 115 Selenium 0.0488 mg/L 0.0014 98 85 115 Uranium 0.0485 mg/L 0.00030 97 85 115 Sample 10:C09030815-002BMS4 Sample Matrix Spike Run:ICPMS2-C_090401A 04/01/0912:37 Arsenic 0.0514 mg/L 0.0010 101 70 130 Molybdenum 0.0524 mg/L 0.050 103 70 130 Selenium 0.0495 mg/L 0.0010 99 70 130 Uranium 0.0518 mg/L 0.00030 101 70 130 Sample 10:C09030815-002BMS04 Sample Matrix Spike Duplicate Run:ICPMS2-C_090401A 04/01/0912:44 Arsenic 0.0561 mg/L 0.0010 110 70 130 8.7 20 ..1olybdenum 0.0546 mg/L 0.050 107 70 130 4.1 20 Selenium 0.0572 mg/L 0.0010 114 70 130 15 20 Uranium 0.0507 mg/L 0.00030 99 70 130 2.3 20 Method:E200.8 Batch:R116585 Sample 10:LRB Method Blank Run:ICPMS4-C_090403A 04/03/09 12:41 Selenium ND mg/L 3E-05 Uranium ND mg/L 3E-05 Sample 10:LFB Laboratory Fortified Blank Run:ICPMS4-C_090403A 04/03/0912:48 Selenium 0.0510 mg/L 0.0010 102 85 115 Uranium 0.0478 mg/L 0.00030 96 85 115 Sample 10:C09030847-006CMS4 Sample Matrix Spike Run:ICPMS4-C_090403A 04/03/0913:35 Selenium 0.0626 mg/L 0.0010 105 70 130 Uranium 0.0645 mg/L 0.00030 100 70 130 Sample 10:C09030847-016CMS04 Sample Matrix Spike Duplicate Run:ICPMS4-C_090403A 04/03/09 16:34 Selenium 0.0617 mg/L 0.0010 107 70 130 1.9 20 Uranium 0.156 mg/L 0.00030 105 70 130 0.9 20 ,,-::'ENERGY LABORATORIES,INC.'2393 SaltCreek Highway (82601),po.Box 3258 'Casper,WY82602 ,"',TollFree 888.2350515 '307.2350515 'Fax 307.2341639 casper@energylab.com'www.energylab.com mJEi/l/i'9.UOJ:lI:lo" -.,,"~.,.."-~,QAIQC-S'ummaryRepoft Client:Rio Algom Mining Corporation LLC roject:Not Indicated Report Date:04/09/09 Work Order:C09030847 lualifiers: RL -Analyte reporting limit.NO -Not detected at the reporting limit. I RL %REC Low Limit High Limit RPD RPDLimit QualAnalyteResultUnits Method:E200.8 Batch:R116702 Sample ID:LRB Method Blank Run:ICPMS2-C_090407A 04/07/0913:04 Uranium ND mg/L 8E-06 Sample ID:LFB Laboratory Fortified Blank Run:ICPMS2-C_090407A 04/07/09 13:11 Uranium 0.0551 mg/L 0.00030 110 85 115 Sample ID:C09040144-001AMS4 Sample Matrix Spike Run:ICPMS2-C_090407A 04/07/09 19:18 Uranium 0.0552 mg/L 0.00030 108 70 130 Sample ID:C09040144-001AMSD4 Sample Matrix Spike Duplicate Run:ICPMS2-C_090407A 04/07/09 19:25 Uranium 0.0553 mg/L 0.00030 108 70 130 0.1 20 Method:E300.0 Batch:R116586 Sample ID:LCS Laboratory Control Sample Run:IC1-C_090402A 04/02/09 19:28 Chloride 9.76 mg/L 1.0 98 90 110 Sulfate 38.9 mg/L 1.0 97 90 110 Sample ID:MBLK Method Blank Run:IC1-C_090402A 04/02/09 19:44 Chloride ND mg/L 0.04 Sulfate ND mg/L 0.1 Sample ID:C09030847-003BMS Sample Matrix Spike Run:IC1-C_090402A 04/02/0921 :32 Chloride 167 mg/L 1.0 103 90 110 Sulfate 453 mg/L 1.0 104 90 110 Sample ID:C09030847-003BMSD Sample MatrixSpike Duplicate Run:IC1-C_090402A 04/02/0921 :47 Chloride 166 mg/L 1.0 101 90 110 0.5 20 Sulfate 452 mg/L 1.0 103 90 110 0.2 20 Method:E300.0 Batch:R116697 Sample ID:LCS Laboratory Control Sample Run:IC1-C_090406A 04/06/09 18:46 Chloride 9.77 mg/L 1.0 98 90 110 Sample ID:MBLK Method Blank Run:IC1-C_090406A 04/06/09 19:02 Chloride ND mg/L 0.04 Sample ID:C09030776-001AMS Sample MatrixSpike Run:IC1-C_090406A 04/06/0920:34 Chloride 75.7 mg/L 1.0 108 90 110 Sample ID:C09030776-001AMSD Sample Matrix Spike Duplicate Run:IC1-C_090406A 04/06/09 20:49 Chloride 76.2 mg/L 1.0 109 90 110 0.6 20 Energy Laboratories Inc Workorder Receipt Checklist Rio Algom Mining Corporation LLC 1111111111111111111111111111111111111111111111111111111 C09030847 Login completed by:Corinne Wagner Reviewed by: Date and Time Received:3/30/20099:05 AM Received by:al Reviewed Date: Shipping container/cooler in good condition?Yes [{1 Yes 0Custodysealsintactonshippingcontainer/cooler? Custody seals intact on sample bottles?Yes 0 Yes[{1Chainofcustodypresent? Chain of custody signed when relinquished and received?Yes [{1 Yes [{1Chainofcustodyagreeswithsamplelabels? Samples in proper container/bottle?Yes [{1 Yes [{1Samplecontainersintact? Sufficient sample volume for indicated test?Yes [{1 Yes [{1Allsamplesreceivedwithinholdingtime? Containerrremp Blanktemperature:3°C On Ice Water -VOA vials have zero headspace?Yes 0 Yes [{1Water-pH acceptable upon receipt? No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 No 0 Carrier name:Ground Not Present 0 Not Present [{1 Not Present [{1 No VOA vials submitted [{1 NotApplicable 0 Contact and Corrective Action Comments: --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- None Chain of C;ustody,-Environmental Samples Chain of Custody #0<:'\-~8 Rio Algom Mining LLC SiC OY\J:c.-t...~c:001)Y1 ~~.\,l\- LABORATORY SAMPLING FIRM SAMPLE NAME:NAME:RIO ALGOM MINING LLC D Effluent D GroundwaterENERGYLABORATORIES ADDRESS:ADDRESS:P.O.BOX 218,Grants,NM 87020 D Solid D SurfaceWater2393SALTCREEKHIGHWAY SIGNATURE: -,J\DCASPER,WYOMING 82601 \l!AiI SAMPLE IJAlc NU.UI' llMe UM!'"KAn CON. NO.ID SAMPLED TAINERS 1'11.,,,"",,1'11.1="1'11.,,,"""1'11.,,,"",,1'11.,""""ANALYSIS REQUIRED EF-3A °o/-dt'250m!250m!250ml Bicarbonate,Chloride,Sulfate,X 3 HN03 None None 1 '351 Yes Yes None TDS,Arsenic,Molybdenum, EF-6 o3ks--o:X 3 250m!250mI 250m!Selenium,UraniumHN03NoneNone 2 111.Yes Yes None EF-8 o.O'\X 3 250m!250mI 250ml HN03 None None3,CL Yes Yes None Analyze metals for dissolved only H-63 ir;t4--oq X 3 250m!250m!250m! HN03 None None41'14-3 Yes Yes None LW-!°%"'-0:\X 3 250m!250m!250ml HN03 None None5IIAYesYesNone ML-I C;-cR X 3 250m!250 ml 250ml HN03 None None6oqYesYesNone (/'IJAlc TiMe' 1 I rIfIIL.&0#->-3 OS / Please return RAM'S Ice Chest. U &-( IJAJc llMe THANK YOU IJAlc llMe u,,,"w,, Gf'nd.UPS ALL ANALYSIS PERFORMED BY EPA APPROVED PROCEDURES ADDRESS AlJIJ",," 0 Yes 0 No,explainabove Chain of Custody .Environmental Samples Chain of Custody#_OC\-2-2:>Rio AlgomMiningLLC LABORATORY SAMPLING FIRM NAME:RIO ALGOM MINING LLC 0 GroundwaterNAME: ENERGY LABORATORIES ADDRESS: 2393 SALT CREEK HIGHWAY ADDRESS: SIGNATURE: CASPER,WYOMING 82601 ADDRESS ~ARRIER-~ SAMPLE 0 Effluent 0 Solid 0 Surface WaterP.O.BOX 218,Grants,NM 87020 FILTERED 250ml None Yes 250m! None Yes 250ml None Yes 250m! None Yes 250ml None Yes 250ml None Yes &~~ f} ~k ~~~-0 CONTAINER FILTERED ANALYSIS REQUIRED Bicarbonate,Chloride,Sulfate, TDS,Arsenic,Molybdenum, Selenium,Uranium FILTERED 250m) None None 250ml None None 250ml None None 250m) None None 250m) None None 250 m! None None ij2sq.h~)/a ofi"'"""t",,,RAM'S,,,Ch'" FILTERED Analyze metals for dissolved only THANK YOU TIME ALL ANALYSIS PERFORMED BY EPA APPROVED PROCEDURES 0 Yes D No,explain above toQU301'Y1 ~~2 U\~ --NO.OF I CUNTAIN"K SAMPLE CON. NO.1 ID SAMPLED TAINERS FILTERED MW-13 250m) 7 I X 3 HN03 Yes MW-5 X 3 250m) 8 I HN03 Yes OW-UT-9 X 3 250m) 9 I HN03 Yes RL-l X 3 250m) 10 I HN03 Yes RL-3 X 3 250m) 11 I HN03 Yes RL-4 X 3 250m) 12 I HN03 Yes -m:rr Chain of Custody -Environmental Samples LABORATORY NAME: ENERGY LABORATORIES ADDRESS: 2393 SALT CREEK HIGHWAY CASPER,WYOMING 82601 NO. SAMPLE ID ~SAMPLi:TYPE TIME I COMP I GRAB SAMPLED RL-5 13 RL-6 14 QC_, 15 ~ 16 QC-JII2., 17 ,SIGNATURE' .'7-~~GNATURE) (SIGNATURE' = Chain of Custody #()~-2 K Rio Algom Mining LLC SAMPLING FIRM NAME:RIO ALGOM MINING LLC ADDRESS: SAMPLE 0 Effluent 0 Groundwater P.O.BOX 218,Grants,NM 87020 0 Solid 0 Surface Water SIGNATURE:-OO-~&R.-f'IIYDF CON- TAlNERS x X X X X X WNIAINBR 3 3 FILTERED 250 m! HN03 Yes 250 m! HNO) Yes 250 m! HNO) Yes 250 m! HN03 Yes 250 m! HN03 Yes 250 ml HN03 Yes ~LI'OQ IS~'1 O~q ILfSo~ 14''\- fl\-~ID~oy-7~S-act 10\lA. OW-UT-9A 3~_oq 8 ,~~& Y1\i 'ljf.(\~;;~- 3 3 3 1 ~ rARroEI< ~~ 0 CON IAINER l'JI:'I'ERE'[)ANALYSIS REQUIRED Bicarbonate,Chloride,Sulfate, IDS,Arsenic,Molybdenum, Selenium,Uranium Analyze metals for dissolved only ARSENIC ~~?hi'"("I P'"",,'"'"RAM'S,«n"t.THANK YOU ~ ('~}-va ,.j ALL ANALYSIS PERFORMED BY EPA APPROVED PROCEDURES 0 Yes 0 No,explain above C»qOCx)~7 \>~~~~ CONTAiNER CONTAINER -"CONrA1NER" D 250m!250m! None None Yes None 250m!250m! None None Yes None 250m!250m! None None Yes None 250m!250m! None None Yes None 250ml 250m! None None Yes None Chain of Custody .Environmental Samples Chain of Custody #OC\-Z 8,Rio Algom Mining LLC (»quoO<tLf'1 \>'\'-\~..J LABORATORY SAMPLING FIRM SAMPLE NAME:NAME:RIO ALGOM MINING LLC D Effluent D Groundwater ENERGY LABORATORIES ADDRESS:ADDRESS:P.O.BOX 218,Grants,NM 87020 D Solid D SurfaceWater 2393 SALT CREEK HIGHWAY SIGNATURE:I .J D CASPER,WYOMING 82601 vAlt MMl'Lt 1rYt NO OF CVN UUNK cu,-UUNtK CONTAINER LV''''''NtK CONTAINER SAMPLE TlMJj COM>'URAtJ CON."Rb'tRyAnyt """'''RyAnyt 7RESERVAny"Y"">"KyAnyt NO.ID SAMPLED TAINERS FlLTtRbV ,iLTtRbV "iL ltRbV .iL ItRbV 'iL"l tRbV ANALYSIS REQUIRED RL-IA 0%250 Illl URANIUMs.oq X 1 HN03 19 I 1'7 Yes Analyze metals for dissolved only r J (SHiNA 1"""1,.. RbctI )lH''t'DATE /TIME h\.(vC;-]f;a 1 Cf,'0;/Please return RAM'S Ice Chest. (StUN')Rb)-l ,_NATURE)DATE TIME THANK YOU ABORATORY'>lUNAtU"")DATE TIME t7i5s b-t'OQJ ALL ANALYSIS PERFORMED BY EPA APPROVED PROCEDURES ADDRESS !\DDRtoo 0 Yes 0 No,explain aboveMETOOUFSHI"M>:N I ENERGYLABORATORIE8,INC.'2393 Salt Creek Highway(82601),po.Box3258 .Casper,WY82602 Toll Free 888.2350515 .301.2350515 .Fax 301.234.1639 .casper@energylab.com'www.energylab.com ",--,-_. CLIENT:RioAlgom Mining Corporation LLC Project:Not Indicated Sample Delivery Group:C09030847 Date:09-Apr-09 CASE NARRATIVE ORIGINAL SAMPLE SUBMITTAL(S) All original sample submittals have been returned with the data package. SAMPLE TEMPERATURE COMPLIANCE:4°C (:t2°C) Temperature of samples received may not be considered properly preservedby accepted standards.Samples that are hand delivered immediately after collection shall be considered acceptable ifthere is evidence that the chilling process has begun. GROSS ALPHA ANALYSIS Method 900.0 for gross alpha and gross beta is intended as a drinking water method for low TDS waters.Data provided by this method for non potablewaters should be viewed as inconsistent. RADON IN AIR ANALYSIS The desired exposure time is 48 hours (2 days).The time delay in returning the canister to the laboratory for processing should be as short as possible to avoid excessive decay.Maximum recommended delay between end of exposure to beginning of counting should not exceed 8 days. SOIL/SOLID SAMPLES All samples reported on an as received basis unless otherwise indicated. ATRAZINE,SIMAZINE AND PCB ANALYSIS USING EPA 505 Data for Atrazine and Simazine are reported from EPA 525.2,not from EPA 505.Data reported by ELI using EPA method 505 reflects the results for seven individual Aroclors.When the results for all seven are ND (not detected),the sample meets EPA compliance criteria for PCB monitoring. SUBCONTRACTING ANALYSIS Subcontracting of sample analyses to an outside laboratory may be required.If so,ENERGY LABORATORIES will utilize its branch laboratories or qualified contract laboratories for this service.Any such laboratories will be indicated within the Laboratory Analytical Report. BRANCH LABORATORY LOCATIONS eli-b -Energy Laboratories,Inc.-Billings,MT eli-g -Energy Laboratories,Inc.-Gillette,WY eli-h -Energy Laboratories,Inc.-Helena,MT eli-r -Energy Laboratories,Inc.-Rapid City,SD eli-t -Energy Laboratories,Inc.-College Station,TX CERTIFICATIONS: USEPA:WYOOO02;FL-DOH NELAC:E87641;California:02118CA Oregon:WY200001;Utah:3072350515;Virginia:00057;Washington:C1903 ISO 17025 DISCLAIMER: The results of this Analytical Report relate only to the items submitted for analysis. ENERGY LABORATORIES,INC.-CASPER,WY certifies that certain method selections contained in this report meet requirements as set forth by the above accrediting authorities.Some results requested by the client may not be covered under these certifications.All analysis data to be submitted for regulatory enforcement should be certified in the sample state of origin.Please verify ELI's certification coverage by visiting www.energylab.com ELI appreciates the opportunity to provide you with this analytical service.For additional information and services visit our web page www.energylab.com. THIS IS THE FINAL PAGE OF THE LABORATORYANALYTICAL REPORT ~ i Laboratories,Inc. 2773 DownhillDrive Steamboat Springs,CO 80487 (800)334-5493 -.! -II Rio Algom Mining Company Project 10:57907 Sample 10:RL-1A ACZ Sample 10: Date Sampled: Date Received: Sample Matrix: L75073-01 03/25/0915:17 04/01/09 GroundWater Metals Analysis Uranium,dissolved M200B ICP-MS 37.60 mg/L 0.05 0.3 04/08/09 17:32 erf Rl-I 4-Sf t ~~ ~~0.-'"-."'--YY\A.V~~"~1..\\.'-\~S(L REPN02.06.05.01 Page 2 of 12 Laboratories,Inc. 2773 DownhjJf Drive Steamboat Springs,CO 80487 (800)334-5493 Rio Algom Mining Company Project10:57907 Sample10:RL-1B ACZ Sample 10: Date Sampled: Date Received: Sample Matrix: L75073-02 03/25/0915:17 04101109 Ground Water Metals Analysis Uranium,dissolved M200.8 ICP-MS 39.10 mg/L 0.05 0.3 04/08/09 17:38 erf REPIN.02.06.05.01 Page 3 of 12 Laboratories,Inc. 2773 Downhill Drive Steamboat Springs,CO 80487 (800)334-5493 Rio Algom Mining Company Project 10:57907 Sample 10:OW-UT-9A ACZ Sample 10: Date Sampled: Date Received: Sample Matrix: L75073-03 03/25/09 16:48 04/01/09 Ground Water Metals Analysis Arsenic,dissolved M200.8 ICP-MS 1.940 mg/L 0.005 0.02 04/071094:10 erf REPIN.02.06.05.01 *Please refer to Qualifier Reports for details. Page 4 of 12 ~,Laboratories,Inc. 2773 DownhillDrive Steamboat Springs,CO 80487 (800)334-5493 Rio Algom Mining Company Project 10:57907 Sample 10:OW-UT-9B ACZ Sample 10: Oate Sampled: Oate Received: Sample Matrix: L75073-04 03/25/09 16:48 04/01/09 GroundWater Metals Analysis Arsenic,dissolved M200.8ICP-MS 1.950 mg/L 0.005 0.02 04/071094:14 erf REPIN.02.06.05.01 .Please refer to Qualifier Reports for details. Page 5 of 12 .,Laboratories,Inc. 2773 Downhill Drive Steamboat Springs,CO 80487 (800)334-5493 April 09,2009 Report to: Chuck Wentz Rio Algom Mining Company P.O.Box 218 Grants,NM 87020 Bill to: Accounts Payable Rio Algom Mining Company P.O.Box 218 Grants,NM 87020 Project 10:57907 ACZ Project 10:L75073 Chuck Wentz: Enclosed are the analytical results for sample(s)submitted to ACZ Laboratories,Inc.(ACZ)on April 01,2009. This project has been assigned to ACZ's project number,L75073.Please reference this number in all future inquiries. AI!analyses were performed according to ACZ's Quality Assurance Plan,version 12.0.The enclosed results relate only to the samples received under L75073.Each section of this report has been reviewed and approved by the appropriate Laboratory Supervisor,or a qualified substitute. Except as noted,the test results for the methods and parameters listed on ACZ's current NELAC certificate letter (#ACZ)meet all requirements of NELAC. This report shall be used or copied only in its entirety.ACZ is not responsible for the consequences arising from the use of a partial report. All samples and sub-samples associated with this project will be disposed of after May 09,2009.If the samples are determined to be hazardous,additional charges apply for disposal (typically less than $10/sample).If you would like the samples to be held longer than ACZ's stated policy or to be returned,please contact your Project Manager or Customer Service Representative for further details and associated costs.ACZ retains analytical reports for five years. If you have any questions or other needs,please contact your Project Manager. S.B~~ Scott Habermehl has reviewed and approved this report. ...ACCO\,~',./1A ~v.'."'.q J'>~,c I .',,1-~ '1',,i'"i:. ffi~ne,.'''''''C.',~~'"',,,.,;.... Page 1 of 12REPAD.01.06.05.02 i "/.Laboratories,Inc. 2773 Downhill Drive Steamboat Springs.CO 80487 (800)334-5493 A distinct set of samples analyzed at a specific time Value of the QC Type of interest Upper limit for RPD,in %. Lower Recovery Limit,in %(except for LCSS,mg/Kg) Method Detection Limit.Same as Minimum Reporting Limit.Allows for instrument and annual fluctuations. A number assigned to reagents/standards to trace to the manufacturer's certificate of anaiysis Practical Quantitation Limit,typically 5 times the MDL. True Value of the Control Sample or the amount added to the Spike Amount of the true value or spike added recovered,in %(except for LCSS,mg/Kg) Relative Percent Difference,calculation used for Duplicate QC Types Upper Recovery Limit,in %(except for LCSS,mg/Kg) Value of the Sample of interest -.--...._--',-- Analytical Spike (Post Digestion) Analytical Spike (Post Digestion)Duplicate Continuing Calibration Blank Continuing Calibration Verification standard Sample Duplicate Initial Calibration Blank Initial Calibration Verification standard Inter-element Correction Standard -A plus B solutions Laboratory Control Sample -Soil Laboratory Control Sample -Soil Duplicate Laboratory Control Sample -Water LCSWD LFB LFM LFMD LRB MS MSD PBS PBW PQV SDL Laboratory Control Sample -Water Duplicate Laboratory Fortified Blank Laboratory Fortified Matrix Laboratory Fortified Matrix Duplicate Laboratory Reagent Blank Matrix Spike Matrix Spike Duplicate Prep Blank -Soil Prep Blank -Water Practical Quantitation Vermcation standard Serial Dilution Blanks Control Samples Duplicates Spikes/Fortified Matrix Standard Verifies that there is no or minimal contamination in the prep method or calibration procedure. Verifies the accuracy of the method,including the prep procedure. Verifies the precision of the instrument and/or method. Determines sample matrix interferences,if any. Verifies the validity of the calibration. B H U (1) (2) (3) (5) (6) (1) (2) (3) .,--,-","~-.~"".'",-"=,,.._~.--o-..,=..,,...~~-"..~--~-~=-=~~-.....--------..-.--~_.,-~c-_..L_.."'~~~.~="-~-='-"=-=.-"-"_."~.~~. .--...--,...-----.-,,.~~~..~~'--'-~-~~-~~--"""--~-_.~~.. Analyte concentration detected at a value between MDL and PQL.The associated value is an estimated quantity. Analysis exceeded method hold time.pH is a field test with an immediate hold time. The material was analyzed for,but was not detected above the level of the associated value. The associated value is either the sample quantitation limit or the sample detection limit. EPA 600/4-83-020.Methods for Chemical Analysis of Water and Wastes,March 1983. EPA 600/R-93-100.Methods for the Determination of Inorganic Substances in EnvironmentalSamples,August 1993. EPA 600/R-94-111.Methods for the Determination of Metals in Environmental Samples -Supplement I,May 1994. EPA SW-846.Test Methods for Evaluating Solid Waste,Third Edition with Update III,December 1996. Standard Methodsfor the Examination of Water and Wastewater,19thedition,1995. =.=~- QC results calculated from raw data.Results may vary slightly if the rounded values are used in the calculations. Soil,Sludge,and Plant matrices for Inorganic analyses are reported on a dry weight basis. Animal matrices for Inorganic analyses are reported on an "as received"basis. For a complete list of ACZ's Extended Qualifiers,please click:http://wwvv.acz.com/pubhc/extquaJ list.pdf REPIN03.02.07.01 Page 6 of 12 Batch Found Limit Lower MDL PCN/SCN PQL QC Rec RPD Upper Sample .. AS ASD CCB CCV DUP ICB ICV ICSAB LCSS LCSSD LCSW !~. Laboratories,Inc. 2773 DownhillDrive Steamboat Springs,CO 80487 (800)334-5493 Rio Algom Mining Company Project10:57907 ACZ Project 10:L75073 Arsenic,dissolved M200.8 ICP-MS REPIN.01.06.05.01 Page7 om WG261854 WG261854ICV ICV 04/07/09 2:16 MS090326-1 .05 .05223 mgll 104.5 90 110 WG261854ICB ICB 04/07/09 2:20 U mgll -0.0011 0.0011 WG261854lFB lFB 04/07/092:28 MS090326-3 .05005 .04836 mg/L 96.6 85 115 l75022-05AS AS 04/07109 3:31 MS090326-3 .05005 .0062 .05597 mglL 99.4 70 130 l75022-D5ASD ASD 04/07/09 3:34 MS090326-3 .05005 .0062 .05651 mg/L 100.5 70 130 0.96 20 Uranium.dissolved M200.8 ICP-MS "..----.-,..-.'-'-, WG261996 WG2619961CV ICV 0410810916:23 MS090326-1 .05 .04889 mglL 97.8 90 110 WG2619961CB ICB 04/08109 16:28 U mglL -0.00022 0.00022 WG261996LFB lFB 0410810916:38 MS090326-3 .05 .04587 mglL 91.7 85 115 l7 4991-03AS AS 0410810917:03 MS090326-3 .25 U .2277 mglL 91.1 70 130 l74991-D3ASD ASD 0410810917:08 MS090326-3 .25 U .22815 mglL 91.3 70 130 0.2 20 Laboratories,Inc. 2773 Downhill Drive Steamboat Springs,CO 80487 (800)334-5493 Rio Algom Mining Company ACZ Project 10:L75073 L75073-03 WG261854 Arsenic,dissolved M200.8 ICP-MS DD Sample required dilution due to matrix color or odor. L75073-04 WG261854 Arsenic,dissolved M200.8 ICP-MS DD Sample required dilution due to matrix color or odor. REPAD.15.06.05.01 Page 8 of 12 t~ "-,Laboratories,Inc. 2773 Downhill Drive Steamboat Springs.CO 80487 (800)334-5493 Rio Algom Mining Company ACZProject 10:L75073 No certification qualifiers associated with this analysis REPAD.05.06.05.01 Page 9 of 12 .,~Laboratories,Inc. 2773 Downhill Drive SteamboatSprings,CO 80487 (800)334-5493 Rio Algom Mining Company 57907 1)Does this project require special handling procedures such as CLP protocol? 2)Are the custody seals on the cooler intact? 3)Are the custody seals on the sample containers intact? 4)Is there a Chain of Custody or other directive shipping papers present? 5)Is the Chain of Custody complete? 6)Is the Chain of Custody in agreement with the samples received? 7)Is there enough sample for all requested analyses? 8)Are all samples within holding times for requested analyses? 9)Were all sample containers received intact? 10)Are the temperature blanks present? 11)Is the trip blank for Cyanide present? 12)Is the trip blank for VOA present? 13)Are samples requiring no headspace,headspace free? 14)Do the samples that require a Foreign Soils Permit have one? N/A NIA CoolerId NA8147 x I Client must contact ACZ Project Manager if analysis should not proceed for samples received outside of thermal preservation acceptance criteria. REPAD.03.11.00.01 Page 10 of 12 Temp ('C)Rad (l1R1hr) 16.8 14 ACZProjectID:L75073 Date Received:4/1/2009 Received By: Date Printed:4/1/2009 YES NO NA ~ gO'<~ ./::~~.:Laboratories,Inc. 2773 Downhill Drive Steamboat Springs,GO 80487 (800)334-5493 Rio Algom Mining Company 57907 ACZ Project 10: Date Received: Received By: L75073 4/1/2009 Sample IDs Reviewed By: ~ REPAO.03.11.00.01 Page 11 of 12 SAMPLE CLIENT10 R<2 G <2 BK <2 Y<2 YG<2 i B<2 I0 <2 T >12 N/A RAO 10 I 'L75073-01 RL-1A Y !I I D L75073-02 ,RL-1B Y J I D L75073-03 IOW-UT-9A Y i I D L75073-04 IOW-UT-9B Y I i I DiI Abbreviation Description Container Type Preservative/Limits R Raw/Nitric RED pH must be <2 B Filtered/Sulfuric BLUE pH must be <2 BK Filtered/Nitric BLACK pH must be <2 G Filtered/Nitric GREEN pH must be <2 0 Raw/Sulfuric ORANGE pH must be <2 P Raw/NaOH PURPLE pH must be>12' T Raw/NaOH Zinc Acetate TAN pH must be >12 Y Raw/Sulfuric YELLOW pH must be <2 YG Raw/Sulfuric YELLOW GLASS pH must be <2 N/A No preselVative needed Not applicable RAO Gamma/Beta dose rate Not applicable must be <250 IlR/hr a .pH check performed by analyst prior to sample preparation ..~r:;~Laboratories,Inc.L--:1v:f)\:f 9....2773 DownhillDrive Steamboat Springs,CO 80487 (800)if4J493 ~ Name: Company: Address: E-mail:I ITelephone: If sample(s)received past holding time (HT),or if insufficient HTremains to complete analysis before expiration,shan ACZproceed with requested short HTanalyses? If "NO"then ACZwillcontact client for further Instruction.jf neither "YES"nor "NO" is indicated,ACZwillproceed with the requested analyses,even If HTIs expired,and data wI1lbe YES NO f",e.~ ::5 J,,,,£ If! ~ do SW (Surface Water).GW (Ground Water).WW (Waste Water).OW (Drinking Water).SL (Sludge).SO (Soil).OL (Oil).Other SR~~Q.()c..~cP\-_~3...-.-PAGE of FRMADOSO.03.0S.02 White -Return with sample.Yellow-Retain for your records.Page 12 of 12 Appendix 7 Groundwater Contour Maps Rio Algom Mining LLC-Lisbon site 151Half 2009 Groundwater Monitoring Report Page 11 ""'"</"",,,.;?i~j 'i '...I! d. .. I 'I .{ -!~:.c' ""'J-' ,1I: ,, I ,. .i;".'N-.. ,1<>""'" " \, ',', \ 'I ',:\ .II" , \':",;i i \r ,-." l-i\ ., ";.<:\,I I ,f,,9!31 ", :.,",'.el::l t '"\ "'-,,'~rRL-6'"(5G81,,.i,,.,.,:'.( ,/\ ,,......'-' .-~..::.iI .I i"C:'-1I I I I ''...,i '' .j '',0).'"(J I.,;:."':1.i.J',"r I :1" i !"I;,I,''l)hi 'W 5'i "'x:,.,.~,.M -;~'"I '.~,'i :' .I., 1 '1"~.'),''1.'- ".t!k ,i' f..i !..I:j.\ ," " f0LW-1 '.J LTSM Boundary i'~.,,-,::\,j~,l '---r"",,%Z I \.'~ X,\'\,,\.."..' "--,/\"'.ML-1 /~(\,'\:,~,',"t.,~..''''-',,;,,;.,I "\J.'\\\ "',,I/'-'":\)\ 1 <'";I'III' \1,' .. " .',.--~.' J f'''t'iT '",I.,Ii ,,,. ~.481"( 'l-r-' t..; /':",. .," ,..,-./~J:0,T' ,[I'." .,,,.... Pit4').r;,,",'J I ; !i (f'!I,:f\.',~.,'.,\,!".'('..),I \'''19.. ' , / " , . Q!pk~l\~j''''..~~\ ~ ,1\\:1 \,I .',.'"/9(','\~h r-"""--"'.~'\.\." [Po V,,\',(- 1'1'-\".,'i:'"\~ \J ,or ,.." :I'~ij 'f".I ...,;-'!... "!,.>c, "j.", .,"{:'J$.'f!---: ;{ {''''~7 ...".,-'r')31,,;' Rio Algom Mining LLC -Lisbon Operation Utah License UT1900481 Molybdenum concentration contours (mg/L) 1$tHalf 2009 i" ,:./'''t.,;j.w.1 'J"::':'i,~,;,j"'"':~/""..,.,-t~:' I ",,~;'~, 1 '. ".-l".- I, I J .." I' ,.,,_.--(A\4,:: "\1 ~;6- F '.' '.,..'.-:;--'J' .;'" Mb2,'"f,-',.'~(: :.';1'" ,,'," )0,'1", 1 '\" "','654:;:1"1Y,r ",,'<\,,(,--r-f\I,'.\ ",',Ii"",~/ ,~" i ,1 '-,"II"I'',J ". "La SoIWesl;UT', +-- ,\:~1 ,..X'"U<1 \' ,",'(/,'"r1"~)",~~,V ,[I,~lo.~1\', !\;II..-\.I,lL '~l'.L ',',1<1,-' {: ,(OJ ' j'\1("\:,,,',,,-'jI"~'"~,'-::;J'~"'""I,'"'\"",''''.:"',','\/,\',-\' /':\"'.'.,..:...,,..';;:'\\t ,'\..'\r I,",' \"I III' '",r '~"\ i '" \,'" ,I .r I \,I \,"I '" "'.i ,I r- ,If,, I "," -;,",.j,"..1 ,,' ,",~,r \,""-,«'<)~"',,'I I :(!,,~8! " ",""'I1A'T' " ,.-,--,.,'f-'" I, ~' "1"-i Ii I I!0, j 'I 0'I ' ,1 .00 I ..I ,,-,:..-,', :,,8I,.W-1 ,I ,I ,I ',',':,:!~, :4.1," ",,'" ,,-+' bf<iM: f"Uif:'/'"too' ! [,';'"j" Ii:q:',."'," 00 ~,,,,--, \"", \""". "', _k,' LTSM Boundary I I I ("j,'/i .I,,+/ (,:. )'..' \1,:, (~:",,:r t ']\ -1 ",_.-'- , ,.-""" f . '.. \' ... Rio Algom Mining LLC-Lisbon Operation Utah License UT 1900481 Uranium concentration contours (mg/L) 1st Half 2009 ,I I I ~,."I '/",'"It' ,!!,ij' i'". ,.,,~'''r r "...I j '."--j""'j3,'fr:::o.",,~,,.i t,'J '.,', <:"J'" \;';.. )'. ...,>~(1,~~~r .'':"""'';1 ._.1 .,.'i,I ';I ,,i..rt'Zf.-:"'';' J -,:.-ift'I ""r'.. ff !, I .1..",." ':-.'{~'1-jirl ~,4B7.-r' '.0." ,0,".,. .,"e 65d}r~)<',r ,,\"'"...)i ::I '! ;. 'j " \.>.' Ii I,' ( I\\I' I'I "",;i 'J ,,[,~...=" I ,'"-,",. 'ilv'.,+.u I ., ., ,I(i.~!~!"u.' i !."--'u .;. ,'II '"' J ',;;;:,,Q' ',',.I.tJ.t'l :,'',','I,' ,\1 I;./\~W5 .:'''''*'91 ) ~~~~~-L~'r '.".... ,',i ..I I i'! .J.!1.':' .I I,1'1.\.,. GLw'~1 J " \f ,;....- ",. 1,/53 (. .._,.' .l ~,..A.1.,1-':I wi'I.I' I - c{ .-1u~8BT;: i',>'£1 Rio Algom Mining LLC -Lisbon Operation Utah License UT1900481 Arsenic concentration contours (mg/L) 1stHalf 2009 \' ~I",I,." ii-m ---'...!J-~.-L__,___L._'_-\'I, ).~ I.b54~J \ \'J )(\'f!~'"\,~~~.-1---t-T"",/",1\.~.~',\.I:;'~\'/'u/'-~,"- \~.\\.--I(''.'..;\,h/.1 ('.'1\:.,'.I ,'I"..-~.'I'v;'LoSaiWost;ur )'~j \ ("~'. .I ',\ ,-\ ..".'\ i :-,' ~.~.----r iI. I .Rio Algom Mining LLC -LisbonOperation Utah License UT 1900481 -- ('-j Selenium concentration contours (mg/L) 1st Half 2009 U:s:bon Site Map Rio Algom Mining LLC -Lisbon Operation Utah License UT 1900481 Groundwater Elevation Map 1stHalf 2009 I .I'LI''''-'.W.. ~hX W.. II TNIo.W.. .&hi-.-W.. ;0 . ~~ T ) :gcc ~"" ..... ....."" ..... ..... ..... ..... ..... ..... ..... ..... ..... '~F. \ ,",.' MW-o *.:- '. ..r !' »'t ,\";rr .<!'t. ._'."oiIif'I;"""",>,;,/tl d '~" ..-.I' ..' .; ~ ~ J' f F ""', w~--,',."!' '. .~,, -,... " n-_n -----------n -----n _U ------- Appendix 8 Sampling Methodologies Used RAM continues to use the ASTM Standard Practice for Low-Flow Purging and Sampling forWells. RioAlgom Mining llC -lisbon site 151Half2009Groundwater MonitoringReport Page 12 tfff'n -.i-~~I r-5cJ~'fl If.? 1l;7=?;;.:.TlO.'U.!. De~1gn~tI0n~D 67fi -02 Standard Practice for Low=FJow Purging and SampHng for Vlells and U:::OQl ;:! 'vf"'>r ~J"our;lri=\fJ::d'or r}Jj~jqtv jnv.:;.diQ~t'!o nc:1~...'""..v.Ji.J -=."""'".-,;'.,-""~.'.;..rv...~ Devices T.oi,"~&:-o i5 i,:;-oo:GO"T ('l:'s::-::c",i§3"io:o D 57!};fu=T,,'''','o''T2""fuj,]y fo11o"'i::ogtho 6",ig:;",i:oo ill:ii:"Tz;th")''''''of 0;1.:i"~cioptQ);OT,;.,fu":<50 of re'd.>io::,be )'="'.Qfh~J='ii,io,,-P.".='J"D 1O",,,!!b,,,,,,illdic=,,,,bo )'''''","of 1;..;[,"Op?,o','E1.A supenmp'=p,ilo:o lEi bdic~=,=:0"iliiQf~1 ch=:o§o ,ills"th hoc :tyj'IOTI 0,reEpp",.,'ii. 1.Scope 1.1 T'1i;;practice coyers the method for pUT~ng aIle!sam- pli.,g vi.ells Elld devices 1J.scdfor grolmd.-vlater qJ.l.s.1itylivest- gatioIl5 aIld Domtar'illg prog;-GlS J:rlO-;;l1:as low-iio"w pUTg'illg aDd S"7T1pling.T.uisIIl~illod is ilio bcrwIl"by the teIIIl3 minim,,} drawdOv,l1 pEI"g'.illgDr 10w-;;ues5 PWg'illg.Ttri.s method could be -used for orner ty'}Jesorgro1l11d-wo.ters.s.mpl;"g pwgrE.DlS 0111 these 1lSesEe ~ot specIDc.s.l1yJio.dresseo.irl fhi,practice. }.2 This pro.cnce .applies Dilly :to wells s.2.mpled at the y.'ellliead. 1.3 Tbis pra.ctice does :!lot a.ddress SE.1:lpiing or \';e11,COD.- ""'iniTig either 1i~ht Dr o.eIl5eD.oD.-aquem.ls-p!laseliquids (TNA- :PLs or DN.bJ'Ls). j,4 Tbis practice oilers"setor msIruCtiOIl5for perfo:millg OIle or more specIfic operatiOIlS.Trris aocl1IIlem CaDIlotrepls.ce ed.-ucmoD.or eA.'}JeneilceaIJ.dSD-oillo.be rsed :in conjUIictiOIl 'with proreSSiOIlS.i jUG..:"'em.Not 81 "Epeets aftbis practice m.s.Ybe applicable in 0.11cirC1:CIlStances.Thi;:i>SDvf stmr.?d is Ilot iTitended to represent or IeplE.ce the starldard of care by vlru.ch the.adeql1acy or a giV;:;IipI"OfessioT1~lser-"ic;:;Iilust be judged, nor should.tills doc=ell1 b.e Epplied withDllt cOIl5ideratioD.of ~ti~a~~~::~?~~Z:;:~~c~s;"~::~j~;~r:~:~~:~~~~;:: PSllYi COIl5;:;IlS1lEprocess.. 1.5 This standard does not pwport to address di of the safety concerns,if any,associated with its use.It is the 7'~-ponsibility of the user of this stcrr0.ardto estabiish apprD- priG"'.£scifer;.,;and health practices and dete17'iiinethe q:plica- hiIit}'of regulCItoi}'li!nitatiofisprior to U5e. 1.Referenc.ed DGcnmentc 2.1 ":DiM Stcmdp.rds: D 4750 Test },ie"fuoQfor De~min;ng S1ibS1l!.-1aceLiquid Levels in a Borehole OTMomtor'.!.JJ.gvhll (Obss,vaTIOD. Weill D 5088 Pr.s.'::ticefor Deccmtamin?tiOIlof Field Equipmellt Used a.t NOD.-?Uidioa.crive 1,Vasie SiTes'" D 5092 Practice for Desigr;.EIld fustalhtioIl 0:GraUIiQ- IT.oi,pr,,-,tioe is lEld",fu".f,z.isdlGoJ)of ASTivI Camilli-'!"""D1 80!!Soil illd Rook =:0°j;it;"dir"oi ,espoiliibili1}'ofS'iD:o~tto"D18.21 0:0GroGG.viE,,,r GO Vcios,ZO!!obv"stig:~tlO!!;. C=Zli editioTI "P;J!ovot Feb.10,2002.Pu'ollih:d M.ueh 2002. ,Amwal BOD}:ofASTM S!a1ld:m:!5,'I'D]D4.DE. Wo.teT},-lOmtor'illgYhll;;ill Aq'ci£ers2 D 5521 Guide for DeveloDmeIlI or GWJIld-Water M:omtoT- illg We.lls ill GraIlular Aqriitrs2 D~~~:r i?~;i!;r i~~~~;T!g md PrepITillg for s.Gro'~d- D 6026?rEctice for Ufillg Signific;:;mDigits in Geote.c"Tli- CEiDat;:;~ D 6089 Guide for DocUIileIltllg a Gro11T!d-vlc.terSampiing EVEIli3 D 6452 Guide for YclTg'illgMethods ror Well;;Used for Gro1JI!c1-'\VEteT Quail,y lI1vestigETIons:3 D 65li Guide for Field PreSErva.tioIlor Groi.lIiG-Vlater SEID.ples3 D 6564G'uide for Field Filtration of GrD11T!d-"Yhi:er SE3pies3 D 6634G'uidefor the SelectioIl of ?urg'llig md.S"m::>Eng Devicesfor GroJ.lIlG-Wa.terNi:omtor'illgWelli3 3.Terill.D:lGID-g}' 3.1 dTl:nvdo',"17(low:ffo'y',l purging and samp,iiiig) n-i'JVier'llig of the waler kvei ill awell c1izeo.by PD.:."'D.pingthe -",e.n. 3.2'mtrance'velor::iry,l:-rne vebtity \,;-Tollwhich £b~m.OIl pore ,,;'o.terpasses through a well SCTeeIld.1.!rillgp12::npmgof the weii.Tills velocitj should be cOllITolled(ne1d to less i:11aIiD.}0 f/s OI3.0ews)to avoidturbulent:fiowtbIOllghme screenEllQ to m;",m;7e or eliminats (bletencm.5 effects aD.water che:::ill:"u)' aJ1GOIl'well ccm",,!.!.l.ctionmE.te,j"j;;. 3.3 loi','flu"",r.--o:-et'Ersto.the velocity thEt is imparted ~=rZ;~~~~:~:~~~2?iEfih~j~:I~~; 4.SEID.!Il£TYof Practke 4.1 L(),w-D.mvpw.0"g so.s~mpfug is E method of collect- ing s'''''ples from a well that;i",.l;h tra.ditioIlai p'U:r~'"g methods,dDes IlDtIeqDire the removal of large yoi"UID.esof water:IToID.the ,,,,ell.Low-:fiowpurg'illg Hiners froIil trafuriOllal meth.odsofpurgillg (BSdescribed ill Guide D 5452)m fuEt its ill;;ishmd on ite otSETvatlcmsof D.E11)'researchers fus:t"",,;:;ter moving thrOllgh the formation also moves Through the well ,Am",oj Eool:DjASTM St~r.:i!II'd;,Vo]04.09. Copy;ighi@ASTM In\'"'''tio1'1"I,100 Sa,;H"rbolDriva.PO Sox CiDO,Wait C""i;hch~i\;n,P~.1942~2.C59,Urni,,~S\:E;. Cop}~ht?y ASTI\1fut'l (ill ri::"htsreserved);] ReprOd.'.1CtiOil !!1!"Lhorized per Lic~e Agreem:errt with Rob",l L;wis (En",,,;;:H2O Scie.lce);Thll Aug 18 12:29:13 EDT 2005 ~,wn =.~=='II""i,Dr!1'u!I'=-... ..,..-- ,scr::;eD..1 -"-US,ille.',','ateT D the SC-Tte:!10 re.pTcse.D-ta.TIve 01 me :o==-3.TIm.:;~.VE,eTsl1ITol.l:ldmg The SCTteD.,Tho;E.SS'.F.C!tSth::.t,he ,v ell 1.2.S 'b~e:;pTopEr}}'desiped.,C01l5Yw-CIeC,md 6.evelDpe.d ES Qescribe.d ''''?rE.C'-riceD 5092 iilld Guide D 55.21.1:0.",..ells iI, ,,,"thicb the :5ow ~'~,r(rw-.:i-,Ihe scr;;w or mtE.ke ZOD-eis '!i.,..,..i:ed.by bydIa.-ulic corcd'J.cIi'.,::y COD-trasts (for eXE:o.ple,"oc"ebD}e SmeE.T- ir-~g,resici'o.Elfier cake,fiter pEd:gTE.D SIZe,or v.'eDscreeD open 2.r=.E),The bes.d di:ITer;:D-cemdllced by 10,v-:50 pmllpDg provides ETI eXCD.2.Dge of ";;.'::'le,De"vee.D.lbe fDIlli::.tiO:il E:ld the '.'.'iE:ll.Lcn;;-TIo\"p'.lrgi:l.g iI,voh'es removmg wEter directly fro:m The s::re.ene.d m:eTYa1 ",',OiT11o'0.tQlSmmillg ED)'Seap2.Dt ,valeT 3.bO\'-e Tbe screell.Tbis is dOlle 'by pl1mpmg the.",yell a.t a low enougb TIO,'.'ra.te to ill8.Dt2.D mi.,-;ima}dnn','dowrl Dftbe "Y.'a.ter col-"""-"lithi..the ','..eD fiS dEtemi'ned :DIougb 7..a.teT-levt! me:a.S'..1IemeD.t d'Lll-mgp""'pillg.The obje.crive is to p"""'p ill a :!IV",."er th51 .,.";11i.,.,,i7-esstre-ssto the.grmmd-i-vE.te.rSyslem to the =TI~Ilt practical,taki..g mto Eccmmt site sa:o.pii1",gobjecTIve-so P'CU-:o.pi11g at low rates,in ei!ect,hydraDlica.l1y isolates the cal;,n of SIa.="EIE7;a.ter in the vn!}-EIlODega.tes the Deed fDr its removal prior to sa3ple c.oDe-cLioD.Typically,fow r2-tes aD. the mo.er Df 0.1 to 0,5 Um;"are used;however,ihis is depend-ent OTIsite-spec:m.c and 'weD,specific fiiCtorS (1),Some very coarse teJ.:turea rOEllE.tiOnshave DeeD.successfully purge-a and sampbd ill This maIille-r fit TIOY,'rates up 10 1 L/I'Dm. PIITIlpiTOg water ievels D the 'well and wateT-qualiTy mdicEtor parameters (such as pH,teI'DperiiTUTe,specmc cODductance, dissolved OJ.::.i'geD.find redox poteDtial)sho1l1d b:;monitored d1J..:['i"gpl.UILpillg,wiTh mbiii7EtiOD.mdicatill.g thEt p-w-rg'!llgis cOTT1pleted a.nd s~mp1ing can 'begi..Bec2."!.lsethe TIo'wrfite.used faT pl.lrgi..gis,ill most cases,Thesame or only sli~'ht}ybigiler tha:D the iiow ra.te'!lseafor sampiing,EJ1dbecause purging md .s<='''''p Iing a.re cODd'!lcteQ as Olle cont'!Il"!lo"!lS operatioIl in The TIeld,the process is referred to as low-TIo";Vpurgirlg a!J.d s3.ITlpling. 5.Significance and Use 5.}The objective OJmost ground-water pmpiing programs i.s to 0'btaiIl SE:o.pleS th2.t file repreSeIl'[Etive of fOTillE.rioTI-qllality wa:ter.\'/e11s used in grotmd-V,'3.ter qUfihiy illvestigE.TIo1l5 or !TIo:!litorillg progr2.TTIs E.re genwilly purged of SOI'De2.TTIountof 1'.'E.terin an attempt to obtaill a represeD.i3.riveFmple.For traditional.methods of p11TgiTlg{fOI example,:y,'ell-voll1ille p-crgi..:ng),purg'illg is dODeto;';;i1ii,'"izebifis associated -iith stagTlaTItwateI st~J.ci:J.gin ths casiTI.gof the 'wfll (Ebove!he weD scree:}),-ii/bieb generally does TIot accura.tely re£k:t 2..lDbie:o.tgro'clTid-'VE,lE-Ichemi"IT)'.To USt lo',v-TIo',VpurgDg a:lQ S3.Tnpling,a ~"'mp int:oke is set withD the -,,;,;ellscreeD aLd the p""'p is operated at a low :Bow ra.te (ge:ileI2Dy less thaTI or eq'U.fil to fue Da.tUIE]rE-covery rats of the vieD),mi..imi7mg .drE.wdO\vI!.D the Viell aIld thus hydra"1icaDy isol3.t1ng the ,vfiter ;,.,the sereme.d ZODefrom the V,'fiter ill the casmg.Water p"'''''''ped in this way c.omes ~i"ecTly from the SCTeE-Iledillte-lya] of the vie.D.This obviates the nE-edta purge Tbe sta="a.nt ".,vfiter '"the well prior to collE-ctiTIgsamples...6.ccess to JOTTIlatioIl- q1lE.ljty water is confi,;,]TIedby morritorillg -""fiterquality pE.ralli- e.ters to t.i-J.epcmt at which they sta.bilize fiSdescribed iD Guide D 6452, 5.2 Lmv-TIow pWg'illga.ndsampfug mo.)'be used ill any ivell that CS:!1be p1llilpedfita coru;tarJ.trate of i.OL/mm or less ','..lTl]Om ;::O::,lIlUOUSQT,,",VQ.O,VDOI '2e.",,,,"-leTlevel iD Ibe '.vell (1).ITis feasi":.]e to in'plemeIlt lo';;,',£io"-'i:P'LE,:i"-'gE.IlQs"-mpling in ".",ells ir.\'/bich me v..2.:e::lEvel is a]YiEYs S.DOVEThe top of ft.e ,veIl SC:Teen,Elld in T-.'ells thE.T ,,",e CD:loLT'.:.cte.j so fbEt the ",','aler lev.:}is al'.'.'a~\'s\'.-;tHn me.well s:;ree:l. 5.3 ~cw-:iDT-iPUT:::c-;;g aDd sampling C?lJ be ""-SedID coll=c:t S,,"l:.Dles faTEli CE.Ieg,-,";es 0:;-a.:pemls-phs.se comfi "i'1.3.Tlts Gj m1"lralj)'OCC1.'IT'2g a.na.iYle:;,inc1udillg vol2.tile Gd seTJi- vobile o::gEic COITIpOUTIGS('lOCs 3.I!Q 5''';OCs),:TIetals am} oIher inCiIgzrics,pesTIcide:;,PCB:;,OTber orgalic COITIpoilIlds, rfiGorrllcliiies and TTIicro'jiologics.l cOD:;,ime.ll;:s.IT is D2.ITicu, }arly ",,,,ensuiled ror use .""be,e it is desIT2.bleto sa2p1e,'..,.... E.queouS"pIlE.SeCOllSTImemsIDETma)'SOTD or:pamnon to pE.TIic"!,llfite!Ile.:ter.Ii i:;Dot E.pplicE.bleto sampling either light or d::I!.5eTIon-s.yw-eous-pbase!lcrcids (ll'UJ':Ss or DNiu'Ls), 5.BenEnIsand TimiiaTIcmsof Low-Flyirlg Purg-'.w.gand Sampling 6J ?1lrg'2g a:ld 5a.:mplingat a 1m'.'TIOW:rate offers a Dilillber of belleTIISove,uaditiollE.J I'De.thodsincludmg: 6J.1 bproved s~mple qus.lit)'E.Ddred-!lced (or eiimi11ated) DEed ror saIIlple fiitra.tiD:l,Through mini "ized disturbmce of the vtd}ad Ihe fOIT.D.ElioD,which resulTs :illreduced iill'.Ja.cl!lE.l s~mpls tuToidity aDd m;..imi7.ariOTIor raIse positives for aDZ- lytes 2.5socia.teo.'\vitb pmiculate matter; 6.1.2 improved s~""'pk accuracy and precisioD EJ1o.grefitly re.G.D.ced.s~""pJ e vITia'bility fiS a reocit or red.uced stress ODthe fOlill2.TIOll,reduced.miTi..g of the water colDIID:lin tbe 'i'telJ and dilllTIOll of a.naJytes,3.lld rE-clm:edpoteDti2.1 for SEmple agitarioJl, aer2.D.OTIGd dega:;smg or volatiliza.TIOIl; 6.1.3 S~mples represEDt a sm~1ieI secnoD or volume of the J01'DJ.a.TIOTI.,represellting a sig:-@ca.nt improvemeTIt in the abiliT)' to detect 3.lld reSD}ve CO:ltamin~nt disrribiliions,which may V'aI}'greatly over sI'DaUdistE.IlcesiI,tb.ree--dinlensiona}space; ,6.j.4 Ovela.}},impro':'eo.'s~""'ple reproducibility,especiaD)'. when '0.smgdedicated p"mps; 6.1.5 improveci abiliT}'to directly cp.aIl:tifytbe totilmobilf COllt~minantload (DcJuding mobile colloid-sized pE.Ttic1llate m2.tler)v.:tb.mlt tbe TIeedfor s~"'p}e :5lm:ticm; 6.1.6 1:o.cn'5.5ed'\vellllie throq-h rei'!lced pl1mpillg stress OD the well ad fOIT.D.~tion,resul-ri..g iD gIea.tJyreil.lsed I'D'Jvemeilt OJ:~~7 sb~:~}~t.:~::~..~:g~:0~t::~,,:~~Nr':~(~~~en...90 .te> 95 %)mwtinginsignificq..t savDgs Dr C05tIElated topltrge .",':;.ter h2.TIrHing a.nd diSpOSEl or trea",';5nt,~nd redricsd expo- :;'LITe or field persoIille)TOporeD.TIa.l1/CODI;;r;,i.,-;ate.d p""1Ige ".'8-tel'; mo 6.}.8 :R.eO:LlDed:.;rLITgDga.nd sampiil1g rime (much IeduDed at sjtes'llS'!llg dedica.ted p';;;;p:;),Tts'21ti11giI,S2.vings afla"Dor cost, d.epell~iT,g on the jme r<sqi.lli'ed for 'NE.ter-quality mmcfitor pmuTIeters w.St3.o1l1ZE. 6.2 Though the applic2.D.oD.of }ow-TIm'.'p'LITg'!.:lga:ld SaTTI- pling wiD i":!pw-,'e S2.m:pii..g resclts Go.produce signi:5callt techniCEla.lld cost beneilts at most sites,Dot fill sites,md D.otall individual',vellsv..itb.Da sits,3.Tewen suited totbis approach. LimiIaTIOClSof tIle :method Dclude ;:he follovring: 6.2,]OD.a placticE-llmis,low-TIo',Vp11Tg'2g 2nd sa.lnpliDg is genera}}}'IlOt s-citab1s JDr l1SSin ve17 low-yield wells (those that .,villDotyi~1dsufficient watenvithout colltillued m-a'\vdo"~ ? i~~~t:~~~.~~~~~;~l~;::~;~~~~~t williRQt~-cLewis(KoillexF.20Sci~C5);Tll1lA1?g1812:29;13EDT2005 6Dik'r--.,,.."~'~'C!li'wiI 'wit'h p"'2~pillg Qve,I;""",e).Tr;is l;,.'>itED.C':::;is ~a.,gtjy a fuD.GTIOD DfLD.t 1;~";lE:.TiG""of discD.a:-ge :altS of a.vaih'ole pm:::!.})smd me YQl1.::.~e of the Sow cell (if '.:;.sed)fe:i.D.eica.to:Da:aDeter illea;;'clIeme::.,; 6.2.2 T.J.t :c.eec to 'c.;;ea vari2.de ilo";",2.l:e:rnlillp ca.pa'b]eof..,.-'.,~.--. P::'illp""g W1B.::J.IDe Cce;;::2"tdTIoY','-:aTt F"ge.LOv,'-:W"i :~rL!Tg-2g,-..,-'.'. caDOT De pe~o~'-'-ltQ :Eillg graD sa.::lp:mg o.eV10e;;,5'2GD E.;; bailer;;,or i.D.eTIiE.llifI d.evice;;,v.tjcb ;;evere]y 2.g:tE.lt fht ',vater CD!1'::'::J:}in IT:e ,,'ell,re3'wlti.D.giD sipific.a:::;t illD:iT,g ofrbe waleT CD!'G=a::.d TeleE.se of cO:lsid.era'Ci!e 3iOdi"ue:ct,'",'mcb SDCNiS 'elp as i.D.cre2.seo TIlrbidir)'iD saillples, 6,2.3 Jor SOille applicE.noIl-s,Thented to use a :Bov,,-t~'":Tough cell,',,,,hieb ~ay i.;].ore.asecapiE]casE,lead TOsli.:hTly greE.ler set-lIp T""e ill the :Seld,md a.d.do:::;epiec.e of iield eql1ipillent. j.Equipment Reguirements forLo,v.Flow Purging and Samp1iD.g j.1 A yariety'of pm"ps capE.ble of pumping at low fiow rates ma}''be 'LlSedfor low,noy,'plITgi.1lgmd S07':"1p1ing,COD:tllUOUE disehE.rge and cycbc disctaIg~pumps work eqm.lJ}'wel1 as long as me.p1.J.ID.ptES adju.stable :B.o',vrare controls md is capa'Dle ofbeiD.g :nlIt Et a low eIl-ougb nO'\'J rEte to avoid ca1J.smg continU01lS c1ra-,vdo'v.'lJ.ill the weD,B~ca-.:!.se the pmging md sompiing processes are jomed wgeilier into one cornmU0115 operation,the pUID.pselecled (see Guide D 6634)shollld be appropriate for use bom in pmging Elld sampiiTlg the E.IlE.lytes of interest.For exo"""ple,if VOCs or omer pTessme..seD.si-riye paramelers (for eXS2ple,dissolv"d o:~ygeIi,ca.rbon Cioxide, trac.e metals)are an6.!.}'tes of iD.teresl,periSTOitic and other S1lctiOD-iiftpilillpS sho1ll6 be aVDided becE.use they may cause loss of VOCs,degass"mg and redoy.and pH changes (1-5), 7.2 De-aicae-d pumps (those that are peTillanent1y illstalled ill the we.D)are prefeITe-aover portable pumps bewJ;;e they elimiT~ate disturbance to Thewater col11Iilllm the ',vell re"0.lting illlmveT turbidity values,shorter pmge -fu"lJesand lo',ve,purge volumes to ac1ieve stabilized illdicator par2.meter me~LlTe. illems.HOi-vever,pOl"cablepmnps cm be used if ca.reis taken to min;mize <iisturoaD.ceto the waeT col~du-,--iD.gp'J.!TIpinst6.!.- lE.cion a:o.dsome time is allov;ed l-'-,-iorTO:.o";71Popera.L10Dror 2JJ}'nnes agitated m th"water col'J:illl to SETI!e. 7,3 Grab SE.IDpling devices,snch as billers md keD.:':':0.BTer ;~~~s~a:;~;:~-~~~~~~~c~;'t~;:~~~::ed::,}~:~~o~~ the V;3.teT colm-,m ill the v;elland the E.t'LEnQSDLE:f:fe.c.tsDf"li-,-ing a3d increased s3.II1pie CWl'bidiIY, 7.4 A vo!1.1illeme=-surin.gdevice (for e:,:a~ple,grsdllate.d cylmcie!)all-a ii time piecE capable of me~'"1l>--=illglisecond.s ',vill be necessa,]to calc11lc.tethe DOwrate :ITomtDe discharge robe :cram me pll.!."l'lp, 7.5 Lo-,v-:B.o",vpmg'mg and s2.mpiiTlg requITes conti::'I!.D'i'::'SOT periodic v.'a.te!-levEl mec.sureilleD.ts (s;;e T~S1'MEmod D 4750), J.J1)'viater-leyel :meiiSTITementequipmEnt that does Dot distu:b thE waler 00111::.7171m thE well may be used,as long a.s it provides tbe acc'u.'!'ac)'reqllired by the sampling program (gEDmlly :to,Ol ft [3 lill1J]). 7.6 LO"\V.:5ovipurg'mg 811dsampling requires co:unnucllsor pe.riOGemeasmement of selected wHer-quality illdicator PE' TaJ!leteE (8110.,possibjy,tu.rbidity)to deteITTlinE when PlITging is cOl1lpkte a!lQ sam})iin g CaD COI!!!IienCE,COD.tinilO1E mom- :OT2gi:!a closed :5o-;v-Ilrollgh cell ofkJlDY,':]vDb..T2legen=TclJ y provi-:i"s It'=TilOSICo::sislen.r 2nd reliable ,Es'd,s,espeocia.lJy ~c:.T--,,".,,.- ClssoJve:i oxyg=:l a3d TtoG-OXpm:enC12.1,md 15 D.::p::-::ieITe.d".,."-- me<:.tlDCl01 me2.SU,illg :L.d.lc:;tDr pa.rE.::.;:,eIErs,HO.NEv::r,3c.i- "\id:"-El i,.""J::-DeE~s d.esipe.o.10 meas'c:re WE illOSi CD::llIDn 7.'Et:r-SEEliT)'illdics.t:c pET2::!eIerS (tespE::-a.c:2re,pR,aIle COi'.:!- Qllc!i'.iT;i OTs:?eciSc CDIld--lCla:!.ce)Til2.}6.!.sC>be iEee,Dissolve:.d o:;:ygen a:!.d Teio;:p;:,.t~:;:.tE.j illEE.Sur;:men:s made E.TI:',ille'..'...'".'. p'c:rgeCl 'yiE:::,1S :,xpos::G LO2.TI::OSpD:::1CCODClElOIlS,hO,,'::VE r, ',v'J.j"m sccuraeel)'TeTIeCTm-sim COD6iTIDD3..LJ}inSIlclIc}E:ts used CD DeasurE bii:a.Tor para::-:Je:e-Ts should De p:-op:rJ)' cahbT::.ed 2D.Q2::.ll!SinEQ lIt Ec,cCordaZlce.',vifu mSIlll:a.::-2rer s' 1'r,CIT-'"CTIOlS::.,the ,vell b.e;s.d a.Tthe SErt -of eacb ciEYof s::.mpliT>g aDd ca.librE.tion should be cbeekE-d periodical!y thIOll~'h01lI TOt s::.mpl;r,g evellt. j,7 Other equipment aDd S1lppliest1at m=-)'be uwi iI1 low-TIOWpmg1:ug aD.ds,mpiiT,g inch::.de those itED.:15speciB.e,d by the site-specmc sompiiTlg and analysis plan (for eJ-:"''''ple, Qecmrt£"';TlotioIl5"elpphes,sample bottles,;lltrE.TImmedia md eqllipmeIl~,pres:lvatiDD s'0.pplies,\';elih"ad screening in"Fi.2- mems [pill,Fill,OVA,combusTible gE.;iIldic2tms],.m-:ple shippiIlg comamers,2.nd :field docillTIentatio:u illa.terials [for e;-o'"pk,:field notebook,:field data s:beets,chaill-of-cuswdy fonns,somple bottle labels,shipping dOCilITleIltsJ). 8,DescripTIoD.of tbe hoceallre 8.1 GeneraL: 8,1.1 "Low now'rEfers to the velooity with which water eDtersthe pl1Ep iDtake a3rl that is imparted du.ri.n.gp"mping to 1:hefonnaTIoDpore WE.ter adja.cellt to the wel!screeD.,Tni, velociTYmust be minimized 10 pre dude tIle.eIllr"nment of artifa.c~uEjparticulate mE.TIerill the -,vater to be collected.as a sa.mpJe.Low-:D.oWd.oesDot necessar'.Jy rerer TOthe no',v IE-Ieof -,vater discharged by a p-tlID.pat the ,,!lIface,wbicb caT!be Effectedby vslves,'restrictioIlS ill the discharge.mbillg or DOw regulators,Some researcbers reier to the method as "10"'''- 'LlESS"~rl1Ig'illg,wherE "low-stress"reiers to the 1mpact of pnmpiIlg the well on me fOIl1J.2.TIOIl,vhter-ltovel dIa-,vdo','-'Il prDvides a DeaSlITabk mdicator of the stress Dn a giyeIl fODD.~IJ]J 1mpmed 'by E piJillpiD.g G.evice operE.ted at a given :50T-,;rm.The objectve of 10.,,-:50-;;,'pl1Ig'lIlg iE to :p"""p in E ;:~~::e;;::;::~:t;~~t~~'~~eE.:~~::~:c::Libanee tothe 8..2Pi-{parntiDiifor LC)w~FIDWPw:fjng CIiidSmnjJlii7g: 8,2.1 Prior to cOIl-due-ringthe iillnal sampling event,IDE s'-..rph,g lean:;sD.DuldpreparE IT:emse1ves aD.o ED}'equipmem EDd :nateI'ds 1D be used m Ihe ::VeD~ill aeCod£IlGe with PrECDceD 5903,..6.I1}'equipment llied iDthe sampling progTEm that cD'dd c,omact me ",VE-Ier ill me v.'ell,the wster collected d.u.:-'.:ngDeld pa.rEl!.leter mE2.5Ur:-menl,0;De.water collected as E SEDple sD.,ro.ldbe prQperly cleoed before eacb iEe (see Pra.eDceD 5088).The CiE£IlequipmeDtshouldDotbe =-)jowed ID coma::tThe ground or other sulfaces fuE.t co'-l1d impart co:!.t>;-;,ini3.Ilrs,AIl E:!!OJ"tsho:lldbe madeto closelymateDthe le.ngtb of the tlbiDg used for }JDTtEbjep':DJpS with the de.ptb at v/b.ich -mey1.!.:ll}'viill be se~ill tbe well.E?;c;;ss tlbiT:g J;a.I]deect the lemperE.t'!1IeI)f the '"vater s,mpied,,ybkh could dfect s"":°pie CD.EE:i,uj'(see Guide D 6634),.AJ]i;;'~l !!1IleD.taDOl'l used d11Imglow-Do-IVp-wrgiDgand sampling r.ciustbe proper}y " Copyright by .t~STMfun (all rights re3~"cd);" Reprodu::tio!!6..nfuor.zed per-LiceIlSe Agreemem with Robert L-~i3 (K.oI!J.ex1-I20 ScieJl~e);T!!ll Allg 1 g 12:29:13 EDT 2005 ann".;F-(::""7";'~I ,=,,-,~,;''-'I' C?Jlbrs.:e,:i.lr:3tmc:i~ili Ie,r cat'bI'E.tiO:Ll EI'e SDe;:2IlC LD De illDvi,j:w£l i?:3IT'L:..,1J.e~'[E:l6 illE.m:f3.c:r:lI'ers'5,""-cTI.Oili SIlo-"lo be f()llo".-~d.The frioq'!leIlcy 26 j;.,,-,ing of c?li':>n'.~oD should boo in acccrcis.Dc.e ',~,'iTD'the si,e-spe.dic SE.DpiiT.g =.2d ?ilil~,'sis pl?Ji. g.:;Plm:p Pla.ceiiEm: S.:..}b si:mo.tioE "vber:?'\",'.:11is >;CTee'IleGaT opeD E.GEiSSE.,-.-,..--- S1l:cg:l':ZODe JI :merest,20:T!lat Lone :.S {"D::o.pn.seci OI nea::ly nO::.:loge1J.~mlS geologic illaeriEls,'the PUED intake sDmlldbe positiomod E.t C'Tnea:-the Did-pDim of '(Cle'"~.'ell sere.:::J..In tc,i;; Type c:f siIUE:uo:r.:..IDe y,'Z.t~T thZ.T is -\~,'iThdTa\;'.'Il".'ill likely re?:r,:::;::;::.tme waler qllality of the eI:r£e scre::Ile.d ZOIle,eveIl Et lO'N-50v,'pil:IJ.pin.gTales.b Si,!lETIDilii:J.',vtich the geology of :he sere.ene.d ZOIle cOlJEists of he.IerogeIleo'cl£materiEls ";viTD layer:;of COIltras.,;ngl:!ydra11liccO:LlCiuctivity,me PUI;lP illtake. should 'be positioIle.d E-djace.mto ille zon(Oof 'highest bydrz."iic conducTIviTY (as defiT,ed by gEologic SEI;lples).Jr.i,provid.es fue.preferred 50w pathwEY for gImmd ',~.'a,er,ED;}SE..IDplESwill be o.ra-,w pi'DE.rily :fr'OI;lini,ZOIle.In sicmotioIlS iIl -,v:hie-h dissolved-phase COIltE.rnins.msof iIllerest are 1;nOWIlto conceD- m'..te ne","Ihe LOpor boltoIT!.of the screeIled WIle,iT IDE)'be' desiTable to POSitiOIlthe pW:Tlpmt..'k-eto target this zone. B,3.2 Care sb.o'.lldbe ,..km Dot to position the.pUT.!lpintake too Ile.:E me top of me screen iD.viElls ill wtich the ",'Eler level is above.the LOpoftb.e.scre~D (to avoid draiving iD ivateT £rom storage iD the casiIlg),or too near the DottOill of fue scrEen (to avoid illobiliLatiOD.aml e.IltrainmeIlt of sEltied solids frOill ilie bottoID of the well),If scree.n length ..liows,the p1illl}JilltE.ke sho-J.ld be E..tleEsI two feet :fr'omilie top EDdtvm feet from the b attom of ilie sc::e.en. 8.3.3 :P-ortable pumps CE.:Llbe useG for low-Sow pwg'ag aIlG :;a!J2plillg,but ilie p1illl]Jmust be in"tElleo.carefully E.:;::'Qlowered sioy,'iy lito the screened zone to miI'irni7.e disturbE.:Llc.eof the water colnm-n.EveIl if aOIlevtith the utmost CE..Te,the iilita.1iz.. nOIl of a portibie ]J1.lJ."1J.p-\y'JlreS"Llltm some mi-,ing of me 'water CD111TTma.bove the.well screeIl "lith mat 'wimill the scre-eIle.d inl(orvEl,EI!.d me release of some ruspeIlded TIlE.terial.Tlris -QSllElly re.quire.s ]Jil:IJ.pin.g for a longer period ofnme to E..chieve stabili7ation of indicator pW3.meteE and t1J:TbidiT'j.IdeE.l1y me pl:lli.p should reI;lz.ill ill pIE..ce.prior to ope.rE..nOD ilIltil E.:Ll)' til:Tbidity re51ili'mg :fr'oill p"n,p :irm~llatioIl hE..s settle-d m:.t EDd ~~~°2:~~J~:;.:~~g~~D;,;~.~~:~~Il t~~~~.e:;p;~;~~~~ posinemllthe 'ivellSD'e.5Il,tileIl completingpr6paranC>IlDf -other eqllipID.:::J.tand mate-r'lElsto be i.lSeoin.the saillpli:;::.geve-TIt Of-ceIlE.liows mBcie:;::.ttime for Ted.llCTIOIlDf i:.-ritiaJtuIbidity D a.cceptible levels.If,.after tht P-':!.!."1J.pisstarted.,initial t"-fbidity TeE..dillgsare high (for momple,>100 N 10)md.re.d:J.ci:J.gthe p'!J.!."1J.pingrEte does not result ill lC1'werreadiIlgs E.fter a fe-,,, Tninutes,it may be Ile.ce8s?T)'to stop the :P"TnP ffiQ £110",; 't'lT'oiditj to settle faI'ffi hmlT or illore.The G.'Tlerequire.a for 'VJIbiditj to settle.is \veU-speciiic ad sho-uld be determiT,ed CD a -vtell-by--,vell bE.sis. 8.4 Pc!mping Rate: SA.l m ge.nerd,th:;pumping rate used.dufillg lovH3o--.o' pilrgiDg =.2a sfu'TlpliD.gumst be 1m'.'eIlough to minimize mobilizaTion and eDtra;T1TileIltofpame-cliE.tematter fl1atis Dot !latt:!rilly mobile (for exompie,fu-tifaetual particles)'UIloer ambient,:;lOn-pumpingconditions "nd to !ll;T,iTl-!iz:;hydraulic stre.ss OIlm"\-'ell aDd The iO:=z.:lcI1 (iOT ~x3.:IJ.ple,m ,.,,;,.,iTnize GrE-"'io.O'i-i:J.E:J.QW e1;""'lrla:e inCl"LlSioIl of SLEg-.uE.I:.t-\Vater £rom"."". rbe CE.smg ill me sa:::.ple). 8.4.2 3e03:0.Se each'ivell screeIi.is ;.",t,iied i:J.Enydra"dical!y ""'S'le POSiTID::J..,E.nd be.COE-use of '="-iTe::eIi.ces in ;1e efc:ls tD.a: d:i11i7\g 06 'f,'e.ll d.~velopI;le:;::.t m37 DE"::hz.a Oll 1be DJrehole md adjaceI:.;fCTIDB-TIon,the l:!ydrE:dic p::rlDGmCe of E-acb well will "Dedili-ereIlt.Ibis J.1:sns that the :?"""pi21g Ete used for 10-;;'-:50',,.p'lT~g <.:;la sml~.liIlg sho'J.ld 'J:dete.:J:"''1ed OD.E. "",;eli-specm C'oEsi:;.It is DDt apprD'pri~i:e to Essess OIle ~,vc]]in E ~:;'~~l~::~;?~d;:}~h~eO~:;~\~~~-\:::~~~~:T~\~:;::?ni:; neTwork.If ))08si-D1e,the optimlliIl pumping rEte for Each weD shO'..lldbe ::s;E-blis1:;din adVE-IlO:;oirhe i..itiz.l S""'pling event. :For Dewly i"'''t?Ued weil",'ibis caD be.d.one """-,;ediE.te.iy follo7,'ing well developme:;::.tb:-i !",;;;T;iT;g f.short-teID siIlgle. well pilot test ideaUyusing 1be SE.ille:0"'""])thE.twili be 1.l5eclfor iD-,y-:B.ol'iJnrg'ag md s"mpling.Once the OPD'''il:IJ.pUBpillg rate is e.stE.bJishedfOTz.given v.'ell,Be SaillEp""'ping TEteCaD be lli:o.fOTthEt well for eE-CDSfu"Dplingevent,provided weD penODIlE.:Lleedoes Ilot vary over me life.of me.vnl1. 8.4.3 To dmGme the appropriate pnmpmg rate for E.DY given ',vdl,the fDllmvmg procedme is ncoITlDJended.A...!.'"tertbe p>177"))mta.h is prope::ly set ill The weD.,the p"mp should be: stE.:rteoz.,a lmv p"mpmg rE-te,generally 100 ~h:illll or les5. For Pi::r:::9sthat CEDDotachieve a :fiO'iVrE-tethis 107.',start me. PillllP E.tilie lD~,;.'estDOWrate 'PDssible.:From fue time tbe F:J.1:E. is st~ed.,the WE-ter kvd ill the well should be me.aS"ured (se~ 8.5)to determiT,e the E.:::'01lIltof drE-v,:dowIl callsed 'ay plli"1J.pmg.---,.'..-.'.-..,",IT orz.W(lOWnlS Ta.plGffi(l COI!.DDllOUS,TIle p"rnpmg race SLlould be low~re.d 1illtil drawcloY;.~decreas%ad stabi1i7es.If 8E-\'.'- dO'v,'ni5very slow or irnpe.rc.eptible,me plliI!pi:J.gra.te.may be raised slowly md E..djl.lsted,0 the poi:J.t £t whicb 8E-",:do-'~':Il stabiii7es.The ma.:;:i;,,=p1illlpmg rale used £Jr sampliI!.g should :;::'0'['e}:cwi tbe race 'used'fOl'pmg'ag.mcreases m pumpmg rates ma}'iDillCe.inem.ses ill tLlTbiditj (6-9). 8.5 Dnlwda-"ViicmdWatEr-Level]vleaSUremEm: 8.5.1 Prior to in",..liin g a pO!'G'ble :p1illlp ill the well Drprior to 11;;cOillIeIlc::De2tO!p1illlpiIlg ill ,veils ill wbel:!d.e.dicz.tE"::l l;;---"'ps are inst::.iied,3:J.';;ital -,'iner level ille.asme::o.ent shcrcld be o"rmme.d. ;~;':;~E;~~rEi:~~~~~;~~~ min';;g the mess plac.e.d on the ",:ell b~i p',mpiIlg.The gOE.iis to ac.1lieve a stabilized p;n"'piD.g ""atT iEvd E.S qu.ickly as possible wilh minimE.]G'E.'V',:do',vI:..CO:;::.tIDilolli \vE.ter-ievel measmements ma}'be made usiI!.g devices SUCD£8 dovmhole preS5"LlTetransducers,b-ilible::s OI''acmlstic to[11s;periodic mea- ;~;;:~t~r:~~~~~'i~~d~~;~ri'~~~~~e:~~;~t~iLJ~e~;5b~ lvieEbl!.Tem:ntaccm£c}'of the device ilsed should be m accordEDce",'im thai speciiieo.ill me sEmpiir;g aIld fu."J.E.jysis plm (geDerally ::O.Ol ft 13 lTIm]).ViE-ter-levelmea.5w.emeDts sho1lldbe ill:eTIeverToneto two minutes tome.pomt at ",',ticD the 'i'vz.terJevejm me y,:ellhas stz.'bilized,orEtwhich dTEWelDW';:; ceases.Pc!Dpmgrate (see 8.4)may need to be adjl1stedto .allow tbe WEle:-level to stabi];,.e. 01 i;~;~~~~~~;~~;:~\1:;:~~_;:~~~~llt'witt Rob~,Lewis (Kame;:F20 ScieJlc~);Tlltl Al1~1g 12:29:13 ~DT 2005 tin-Iff::,.;..,-."!t,d:Li1>-:-:J;,",r vi ;,'wl 8.5.:3 A~er The iys.ter level iI:,he ",ve]}hE.s s:s."olll2::G:."'-",',"E.,e.:::-]evel meE.S"0Ie~eilts caIl j;:cllSGDrE.:Il"~e.Q.UIlc.e me opti"T"-='p""'p3g :-E.leis eS:E.'blished :ED:-in':".'.'ell:il :nay 'De..',.". De:ceSS8.TY LD peI10dlOs.lly :!lOSeor tt;;:";'.'<10',]e"\'e1 O:C:T.wg s","bsec).":le::.t p'UIg-'.J:lgEllC s~""'pi;"'g eym:s,Dore frequeIl,ly if s. si""i71GS.=1 di::ereIlc::ill ':'.'ell p:::-IOTI::.E.Il"Ce(geIl:OTE.Uysip;fied..",."..."- cy 2.:;]DCre2.Se w OIS.i'.'ClO"ii"Ilover :-ge)lS :D.meec ill S'LlDseq-w.eTI;: SE.;:;::pl:Jlg eveTIE. B.5.4 Severs.)Tese,,-rcheTs h,,-ve proposed lil"'Ilits DD The 2.1:,:W'"D;:of o.T::,\."o.o-.'':Il -rD.s.t shoula "be "-.l1o',"eo befoTe T-.',,-t;:r,leve.l su:bilizs.;:iOIl oC.C'UIS:b'ell nOTIE:hsve p:wvided S.Il}'scie:lt'iic rs..TIOIlEJe fCE the pro:c,osed ii.,.,.,its.For ex~""',:c,le:Puls E.TId BE.rceloIl2 sEgge5t 5 li.:-:illtof kss !TI5D 0.1 m CO.33:B:or ,,-bOEt 4 iT'.)G-a",';d>J,m fOT 511",,,ells,c011ceci.!;g tDat this goil :!l::Y be ~::~~e~~i:~;~:~~illl:~s~i:~e~0:7:~~,;~~~:5}~~~~~~~ Edj~o'".:J.eIlt bEsed O::!Site-5p50illc -co:lditio!lS md persom.! e-:?cpe:neDce(i).fu prEcrid teITIlS,Ello,v::."blears.,','dov.'lJ.sDollld Deve:r exc5ed the dis'ffiIlc;:be.tween me top of the weTI screeD aDd me p-ump ill1ake,v1hich is DOITIlcllypositioned neEr the m;d.-point of the screen.To provide 5 sdel)'raclOI',drawdov.'n should geTIerally not exceed 25 %offuis diSLs.IlCeto eD.S1.1H,mEt no ..vm:.r stored mthe casmg pnOT to :cmrg-'iD.gis arawn dm;,'Il TIna the pump ill;:ake EIld conected "-.spart of me sEmple. 8.6 ]yfeasunmelit of Winer Quahty Indicator Parame,ers and Tw"bidity: 8.6.1 Vhm-qEE1ity i.!;dicatorpcr~ete:rs should be :!le"-., S1JIea to de:te:H',i-..e "'iDe-TIpmgmg is complele 20.SETIlplillg CEIl com7r1eDce.fu 'wells b ""thich me p-umpbt"-.keis set m me sere-e::!.EDd opErs.te.d"-.15JEte less thEIl me D5turcl recovery TEte of the well,sEbilized water cberni5TI)'i.!;dicEtes tha.tfOT:manon- qualii)'wEte:r is bei.!;g pumped EIld,therefore:that condiTIoTI.S Ere suita.b1e fOYs"-.1Dpli.!;g(1).The ""-'£leT qustity parE-mete:rs mEt ;~:t~~::a~~;-:~~;e~~':e;~fi~;~7~;~~l%:~~\;:;1~~~~e-~~ COIlG-c1Ctivity(Dr speci:5c COIlcl-u.ctmce),dissolved oxygC::!aDd ":Jxids.tion-real.lctioIl potentid (redox or O:PJ',"-.lsoDe::.swed as Eo.). 8.6.2 VhteI,qEElity i.!;dicE.torpETEIIleters C2 'be monitored (J:;}eifueT E comm'.:.o1lS OTperioGic bEsis,tD.01lghCDTI-;;n'.lm!.S -monirof.wgm a close;d:flow-tmougncell providesme most ~~:'~~D;e~~~:;~t:~~ai~~~~6;~:;~~~i~~[.::sf~:e,~J~~~ st8.bk ,-,,<he:!.three cOllseclltivf r52.r.i-ng5 made EeV~Tzl :LIilicE'te.s aDaTt faD '?,'iTI,;"TIlerEDges ):,reseDted in Table 1. 8.6.3 \\'.b.ileLile crite:riam Table I Ere re,,-50Il5blecriteric,I81' TIlEn)'Dydrog;:.ocheIillGa1 5itu.s.tiOIlS:it should be recogIlized rtlal Th:.n criteri5 illSY !lot be "-.ppropn"-.tefor other simatiom be;cELSe of factors ;"chl,;ing vsnioilit)'b aq"ifeT pTOpeme5, TP5LE 1 Examp!e Criteria for Defining Stabiliz2tion of W"ter- QusJity Indicsto;Panomeier5 a;amaiar Stabi!:zatbn Crita;b" pH Comiuct\'itj Di5501-.'aoOxygan =0,2 pH units"' =3 %of reading Eh 0;OR? :::10%of ;aading or :::D.2mglL, whichava;isgraatar' :::20mV'" '"Rs\=iad to ina maa5uramant accuracy of C:i:'mmoniyavaiiab!afJald instru" ments. --.,".,"" mC,c2LCT2Ilg ".ve"-!,1YQT::.-,,11C3,3.TIO IlEmrEl SpEllS!E,"lCiteIT.?C-TE.!."'.,.'.'---- Y5TlETIOIl D p-D":IT.0-W::'Ie:,C:leDlS:T)'E:J.Q CO::,,=:;1TI2.TIt ili52Dl;' tiO::'.ll1ereICre:,he Cri:e:riE ill Table 1 stould 'be comp,,-rE:c ;::0 "iell-specifc ::Qe5S'EeDeDTS 10 o.el5rmi.!;e i.f the siTe-spec':"c criTeria nee;Q to "be adj'cl5te;d..L_c1di-:iOIl2.Dy,the-se C.~L5riE 5hc':llo. 'De evalill.te-:i tD 5;:1e-0:chose ,hs.;:Ere Gas:i.,.,..poTt::TIl ::.:lG Ieiev::}}t LDDeet'sg ,De S6.:llp1i-;;g o'Dj5ctives for The specifi c site.Nat "-.Dc:iteriE.TIed LO'DE:Del faT 511sites.StE'Jiliza.'~OD criTeria.ths;:E.T::lOOSI:E.gem :!lay llD1eo::5s::rily kEd LOtoe".-'' gmer5TIDIl or lsrge 520'3LS or CO:1:E:TIills,ecF,-"rge Ws.:eT .'\vitbmlt providillg :he be::;,e:i1tof EI15m-'!JlgBE,the 5::sp)es :are a:;:;~"Dare repTe5e;ll8.Dye. 8.6.4 For D,;i-..e i:lO\"Jr"a-ug!J cells,m::frecl'-lency of the: :mea511TEI:J.emS 5ho-clld '0::bF-sed OI:!The f-,;;e reqll1r5c1 co com- plete.)}'evacmte one volillDe of the cell:to eIlS11TeiliEt iDcie-percdem Des.S':lTeDeTI:S Ere m2..(l=,For eX"-illple,a 500 :!IlL cell ill j;system }Jllmped at a rale or 250 mI./rni"will be EvacilEtd ill 2 ",in 50 illeF-S'ure:DeDTSshould be made at leEt 2 -:-ni""-paIT.It is i""part8.I:lt,therefore:m5t me sampling te.:ill:! cSl,,-bliE:!Jthe D)EowiDgVolll,'TieSE.IldTaes m The:5.eldprim'to tb.e sampli-..g eyeTII:(1)Vohlme of the p"mp md disch"-.rge rubmg;(2)Opt:ill::t\.!TI1FLlc"TIjJdis.ch"-.rge rale;aDd (3)VOl11TIleof me :B.ovi-'-h,Ough ceU cOITecled for d~-plEceme}]t yolu;1:1e of rbe field p5r"-illetcr :mes.511TemeIlt in'ITLlTIle:ltEtion iDslalled.incide the iiow-thro1lgh cell.It is also L-npOTTaIlt10 ho-v,'the TIlEllI'-- fuctcreT's recornmendEtioT,s WTfue amount of time to aDow bdivid1.Ul se!lSOI>beiTIg 1lSeG 10 me5:lTe field pE.I"-.DeIeTS{for epmple,rii,.solvd Dxyge.n)io stEb;!;"-.e:to ellSl1Te ilia:repre- SED-sriye ckt,,-ITe be3g collected. 8.6.5 For wells m ",'.'bich de.dic.ated pumps are 125eo.,ch"mi- cs.i indicatOT parEteteT3 teTIa to stEbiii7.e more readily beca:0.se fuETe is illi-..i.",al Gistcly'bEI1Ceof me W,,-TercoliJIilll b me inll. For wells ill '\'inicnpona.b)e P""'jJS Ere l.lsed,the effects of plliTIj)in'F1iatioD,oD'The.y,'Eer col'UmIl s-m.1iy result in the need tD remove sigr-,i-iica;::dy :!lore vtatE.Tbefore chemicsl mdica.tor pcrameter;;(Ellc1:as :!.oteo.'odow,tL1T"t;idi;:y)reEcn 5J:"-.bilizs.TIDn. 8.6.6 T.b.01lgDTIot E cbemical pETEilleteT,2.D.dnot mdicE.TIve of wLeIl fOTm:STIo:!l-qll"iiT:i viai~r is D5lng p1lclJ.jJeQ,mibidiT:\' :::.JSYalso '0:0 E DSefL:l pE.TEt~teT to monitor.T'L1Tbidiry:is E. phYBic2.1par""eler IhEt pTDvides a meli.surE:Dfme suspmded ~~£l~r2~~~~i~1~Ei~#l;~~£ me fOTills.tio::'.;(2)N.atcrs.1ly occ8---ili1g solid3 or E!-jfEClEE.] solids from w;:!!dTilbg ~d iili:ts.lktion (:fDr-::x51TIple:drilliIlg fiuid3::B.llerpack,grmlt)th5t D.EVe:!lOLDeen efiectively removed by -veil de'.'e!opI:J.m;:EllQ .aTe Gobiii7ed by s.gitEti-OD.of fu;: ;'meT col111TlJl(rhEl is:b~\;baii;-;;g,by i-..,t:;.JhtiDTI Of-E }JoT"l2ble p,'mp,or by oveTD;;C-il~,iIlgthe ",'ell);(3)Microbial gTovih tb.::.t onen oCC.TIT;;y,~-;-};i;,monitof.!:!lg ",reUs b the presem:e of c-eTt~ types of CO;lt.mi,'SIlE (fua.t is,petro1e111J1hydrocarbons);aDd (4)PTE;cipitsTIDI!c"-.l.lsed by crereD.t redox c-oDdiTioTI3 m the -y,'eDth5D.in the a.(r!lifeI.Tcrbidity levels e1evned a.bove fue Il"-.rural fOTill8.Dc1Dc.oIlditimj CE.Dres'clt i,l biased 2.D.slytcal results for maTIY chemid pE.TE!--neters.NaTIlTE.IJyOCCU;T.illg turbidity in so~e g:rmmd "viEierC2 exceed lO NTu (1)End CDpyri~htby ";\sTMIrlt'](allri~};tsreserved);5-P-.~A,,~;':~-~,.A~-'-~-1_~.T;~~_M J._,~-~".=,.;.1,-p_,,-~...T~-~..f7~~--'W-.-,,,"~;"':'M~'"r"~,.I.,.~,,,,,,.,.,n.,0 ""'7'.,r.,,- AWI'J --,H:iu"P,{';'(7 "~!\d''''.,, Ill2::>'be -::LTLEvoiciEbk J-c2Tbicii:y i:!2:pTo:;eTJy ces"pe,c,COD--.'..--'-,-.,- S::--D,ct~Q5I1Cc.evelopec -.'.'eillSIllOStO::LeJ:3 resul:D:iS,pElCEDt ciisD5Dace of :h::-,-.'2:1::,co:-~or e:-:ces"iv::sere.ssDl2.,:eo.GD--', Lbe:lQ~s--:"oJ:by o-,'eTp'clE::;2.!:g. 8.6.7 To Evoid Ertif2.::s :il SE:::lpl::mElysis,tu.fbidity SD.J'Jld De 3."l':Ft ES pCJ3S1Dle-",-h::ll so"'::,le"2:Tecolleccec..-11lTJidiry---",.,.-.-EleE5TCeEems sbc,-J.i::!.be EKeD 2:::be S2:r;:,eFT,e TD.E:CDcl"D,c2:l }J2-,::.I::!et;cf EeEsc2f:r;:,e:--ets Efc :J:l2-c.e,DI,2:1 ":Jl~T:I:l,oDce,"'"-,...1v:be.I}}J\lc"':J.p2g lS 1,n'e2-Ie;:;2:IlG 2-gED just 'DllO,,0 s2:sp_e.-.-.-.'.--.'-' colle:twIl.,"TeeT l:--cG1c"t!JT p2-T2:l"DeT:E .bEVE s,EDUEea.ib: 5T.3biliz2i:lO::C cj,IeI"ioIl :fOT D2fbiciicy is =1Ci%cf The pTlDT n:aciiD.g or ::1.0 1\'TiJ,V/nicDC"I'ef is g:;:e2:Ie,.If m,biciiTY -dilues 2:re peEisLemly high,Lhe pEm::;iIlg TEle should 'b:lD-\-iered UDtil L"c2Tbid.i:y d~eTe2-Ses.If bi.:;},L"fDidiTY persisTS eyeD ET'L!O,Jo-\'ieT-".-'..- "'g Th~P""""p",71~TE.te,t.'1c}:;>,711pSEY D3ve to DEswppec IOZ'E period of Lime umil D.'Ibidity settles,md The pUIg'illg process riCsts.:--ted.If :bis 1E11sto solve the pmblem,,vell m~iIltenmce or red.evelopmellt mEY-De::cecess2-I'Y.DiSculties 'with bigh to.rbid- it)'sbould De iden:i:6ed during pilm tests priDT10imp1ementillg lm:v-TIo-,Vpucg'w.g or d-cIT'illgthe iT'itiEllol'i-TIOWs3mplillg eveIlt, End cOIlt'!Zlgenciesshould -DeestEolished w "i71i,.,...i;:ethe problelI!or elevEtedillrbidit)'. 8.i Sample Collection Following Purging: g.i.l iUIer ciTE-,'idoviDEml chemicEl iIldicator ps.ra.meteTs stabili7e,sampii'"g caDbeg'ill:perthe site's ~p:orovedsampling 2.Ild analysis pl:::D.If aJ:ill-line :B.ow-t:lJroughcell is used to CO"DtiD.uo-.:!.slymollitol chesieal ill.die~TOr}J2-IE.meters,it shm.lld be discO"-',eeted or byp2-ssed du'''':illg so"':pIe colleeTIo]}.The ~:rJ.El:oing :nste m3Y rem"ill 2..tthe esta.blisbed p-urg'illg rate OZ'it "Tn'pf"",,,,!'7e'-SDDfDT",;~,;",;--i~g tDo--biiitydUc"':"'gP"'.:i~g ""d SE!D.pliDgi.; ths.t :s--oidi,)'C'-DE:rectthe "~,,eou,phose co:oce"ITE.tio:oDffoe t:oElyte,of iTIte;es fD7 com oTg;'mjc""d iTIo,p~;c "-'1E1)-;es.The ECC"''-!'E"o1)'s;,of :ogueo'-"-pDcse ;~~:ec :~~:e~~::;e:~~"~~~~~;~~c~~t~ti:~~;;~~~;~~::;;:~:~~~j~~: fue s''''ple p,eseTvEtio:o PWCtSS (E.cidi:6cs.rio:o).Tile E.CCUTE.teo?!ysis ofbycropDc- 'oic G7g,-,k CDrc;>DClldsc'-"be drecteo by the pTese"ce of bofo oegac ""0 iTIa,gIlic F~-D.:-oJtt,~Et""'r.1.:0E.d.d.iti'O!l,m,-lysis of Eg'-'oolli-p:O?5'Dega:DEly:" CEIl bt DEmperEo '0)'the pD)'sic2.J ?Tese!lce of suspe.!l:ied.solids (thE'is,CE'-'>'''''' cla0"g of the "e"c"beT m,the m2.JyticE.1qcip:o:,eZlt). ..,--.'.,.',"'" I3.Y Die 2-CmSleO CO;;;'::~,~i2:TO LD ""I,'.,.,.,'7e aeTE.,":::'~,OED:::!e Io:-zsDon,Corc'-'1:DElemSlliT"g of sEIple boLtles.?or illC,S: p3.12SeIefs,S2.I:r,),i"g rETes of less DEIl 500 :--"Tbi,3.:-e E.ppz-cpj,2-te (1).SEIpling r2-tes fe'T toe most se::::G:D".'epE2.D- eLeE ifoI'e;,:;o';j')le,\,fOCs)sho-dd -De!T,-.'er(ge:z:elElly less "8:SIl 250 -,-,Th:I!lI!).Ge:z:e,Elly,tbe :::,,:)SI se::::Gi,i~ie pa:--3.:=e.,e:-",OI ,bose ThaI 2.,ieof g:cea1es:iIlle,eST Et ilie site,sDceJdDe sE::::}:'led :irST:§2.!ys::s tn."t requiI-e :5.1mstic'.Jlsn.D-c21dDie sE.lIlpled hst (J.). S2-:Jl'Dlefd"EtioD (see G-Jidie D 656{i,pTeSeFETIOIl (see G'uid::: D 6517),lEIldling,ship::;illg 2.IlO :J..oe,',meDI2:li'JD (see Guide D 6(39)sbo'J:d b::consisTe",1 Fitt pmceduTes c.oc'.l:Jlemed in,-'..C ..,.., Ie "ppwveo 5Eie-speCE1c s"mp12g EnQ 2.n2.l)'s"plE:o.. 9,Reponing 9.1 Tbie procec.-cr:s aDd cq-Lli-cIent used d.l1r.ClJ.gIm,'-TIC>-w :~:rc2Igingand so".pii"g muST be docD.I:lenied iD.:he Sel d. Speci£.egnid.EnceOIldoc".,.,-,enLiIlga.gTDill:to.-"n:Tisrsa.l"Dp'1,g eV~Iltis plovided ill Guide D 6089.Field dELEspecific -;:0 lO\H'lo'w p-'-'1g'.ClJ.gmd sEm:pliIlg tbat sho'llld be recorded ill- eludes: 9.1.1 Eq-uipr;:,eDtc"li'bmion; ~:~:;~~~~;:~~~~~~~;~:;:;~;purg'illg and SE.Ipl:IJ.g; 9.1.4 P'~I!;pla.ceI:lem (rel"Tive to well screeD :oosiTio:!SIld stEDe -,vEterlevel); 9.1.5 Initial mtic i'.'2..ter level; 9.1.6 Ir,itia!pumping r"te; 9 .1.i DrEWdDV,'D meaS-c2Ieme:ilts; 9.1.8 St2-bili:z:eci -cUITiDllg -""2-tel level; Fillal plliI!pillg r2-te; Wa.teTgnUiL)'illdicEIOr and lc2Ibidity mea.51ITeI:lEIlts: 9.1.9 9.U 0 9.Ul 9.l.J2 IiI-Des fm a.11measuremems;aQ S"I"DDliT,g :D.0'i'i raLC. 1D.Keywords 10.1 gz-ollild w"teI';gTOlmd-v,'ateT moilltmm.g;gT01lmJ--\YEteT quality;gz-m.illd-1':ateTSOD})ling;indica.tar pm,-scters;low- :B.owpilljilig;low-s"ess }'lErg'illg;,,-,ieropUIging;mi71imaJ o...o.-ii'D.OWilpurg's;;purg'sg;W2-terqUE-lityI:lollitofillg RE.r:.GREI'~CES (I)P111,.?_.'N.EllO Euc~loE~,M.!"LOlo'-Flovi (}\'Ii;-;i~'ElDrE"\".'dolo'::) G,ouIld-Vh-Ier SE.D:.p'i;-;,S:F':OS=-':'1.1IE,U.S.EEviror8=:JtEJ FmeestiG::C _"'_g=DSY,Dills,01R=s=EIcb ;:.DODEV=loPID=El,PublisE.tioD#EP_~j540/ 5-95/504,1996,:0:0.}2 (2)BE.,celmJE,MJ.,E=lfD.ch,J.A.,G"",,1:::=,E.:::',md Gibb,J.P.,A LaborEwTY Ew,l-ccEtio:J of Gro1!.Tld-Wat:'T5~D:.p1i"g l'.'I~ctETisBs, (3)~~~~~~1-~te~~j~::~~~:~J~)~~:-~~;~~~~~~2~/~;~?~.y~~=~~.ror . 5=:oli1.1;;Gas-Chug=dGT;:":2.Ild-Wa!~rrOTVolai}=OTgEllic~-"2~lysi:;, G7"O!'7id-Wa!er]"L9nito,-i!igReFiew,Vel 8,No.ie,1988,pp.112-120. (4)Eo,]aIDe;S.Y.,EE~Cl 01 5''''p1;,,;;VEri2.bl~;DERW)V~D'of VDl2.til0 OTg","1:'inViat~T,jo!m!GI o.frh.oAmericCJn hale,-}fa,,!:}J--5J7i.,Vo]75, No.n,1983,pp.553-586. (5)Pearsall,KoIlD.Et'bA,,md Eol-cudt,DEvid A.V.,EE~ct5 of Selectod Sfu'1lpii;-;gEq\lip.DJeDtand hOc.e,:5.11r~;DDthe CODCeD.ITEDOESofTrid:lo- wet'bylene and R~lEteo COIDpm.h-:d;;iJ:!Gro\:!D.o-\VateT SS:D.p]eE, _Ground-WJi?1'k[oniiDrj;;g R=."i"w,VDl 7,FD 2,1927,P:C.64-73. (oS)Bss!:t"",D=-~,sA.,Rya.::,jose~h N.,GrQD.or,DeDie]1\1.,JI'I2.c:ukos, kb.TI L a~Gscir".'o::;':5.,Phi;,p )\ii:.,S''''pli:og CQl.ioids 21ld Colloid- A..ssocisle~CO!l:,",i~cs,m:i!l GW\:!D.d Vhee:,Gi'O!md iT-DteT,Vo131,No. 3,1993,pp.466-479. (7)Ke:;rL PetoT1>1.,Korte,Nie E.,a~CTDr:k,To:o A.,S-Qggeot=d lbdif,cs:lo::;s te GTC'-cm:5.'\VZ.tST S''''plir,g Pm~=tQTe;BESSO 0::;Db- 5=:..'s:iD1EPrc.:D]t'bo Colloi",i BOT~;COpo,G,-:nmd-}far"r A£Oi,irOi"i;;.f? Rev!e-,,',V;)112,l~o.2,1992,pp.155-161 - (8)KoZIl Pel:'r lvi.,Korte,Nic E.,Sri:SE,M.,ad Bsker,.i"FiEld CO::D.PSTI.so::;DfMicTop'crgi:-:g -\'E.TTE.ditiD!ld Gro,-,nd-"\VEerSE2pliD.g, Ground-WeHf]'MO;;j,071Jig 1'.£'",-[fw,VQl 14,No.4,1994,pp.183-}90. (9)Pcli,Robo:I --;N."_,:d P07ieD,Robm M.,AcqI!isitiD:JDfReprese,,-,t2!i;'e Grou.,ld-\Vaer QUEiity Sa;ples for MSI"ls,Growid-}fo;e;'i;{c.mi7oring R£'",'io11F,V~j E,No.3,1992,pp.}67-176. ~~~i~~~~~~~~t~~~iJ~llf;~~~:~~;~~~~Iltwith ROO:LEwis (}COIDEX?20 ScieIlc~);T1mAug 18 12:29:13 EDT 2005 t.nT}i)S- {."f;'d:11iJ.!?l.!.!I'1.111 ~~£f~::J:~?:~~~~ry;~~£~~~~~[:~!;~;;~i~~7i:!~I~~"~:~~r::.:~~;j;;';;,,~:=\=::j~;):r~~~~~=:~~;;:;:,~~;;,~~::,,=::;,~:'~;~~ if,':~:~\~;~;'::~:r~~~:~~;~;;~~;~;h~r::;,~ri~:U~~;r;,;,:,:c;:~~:',:~1~;~~:~;":::~:~,~~1!~:::;~;;~~~';;:~:0;~~;~~~:;:~ ;,~:fE~!:~;~~I\~,~~:;~;~;£~~~~~:~~~;r:[;~F~'~i3E;(:~.~fi:!E::.~::,:::~~~~:E~~;,~~:-;~;~~;S~:~~ ;;:2?;~~~7nj:~?£;~~~~~ff~;'~:;~~~~~;i;~.~:j:~~?E~~:~~:'::~g~~~:K:~~:~~~~~~lt~?T~s~;~~::{~: (11'>'.'>'/.E=r,;-;.0,g). Couv7iwt bv .ASTYi bt'i (ill ri.!ilits reserved): 7