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ACZ Laboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020 ACZ Project ID: L46299 Kent Applegate August 31, 2018 Project ID: 4506946843 Report to: cc: Michaella Gorospe, Clark Short Kent Applegate: Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 16, 2018. This project has been assigned to ACZ's project number, L46299. Please reference this number in all future inquiries. All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46299. 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 September 30, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years. If you have any questions or other needs, please contact your Project Manager. Rio Algom Mining Company P.O. Box 218 Grants, NM 87020 Accounts Payable Bill to: Page 1 of 24 L46299-1808311348

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Page 1: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46299

Kent Applegate

August 31, 2018

Project ID: 4506946843

Report to:

cc: Michaella Gorospe, Clark Short

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 16, 2018. This project has been assigned to ACZ's project number, L46299. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46299. 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 September 30, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 24L46299-1808311348

Page 2: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-01

Sample ID: 32-02 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 16:53

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 538 mg/L 3 dcm0.5 08/29/18 15:235

Magnesium, dissolved M200.7 ICP 715 mg/L 5 dcm1 08/29/18 15:235

Potassium, dissolved M200.7 ICP 11 mg/L 5 dcm1 08/29/18 15:235

Sodium, dissolved M200.7 ICP 758 mg/L 5 dcm1 08/29/18 15:235

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 694 mg/L 20 mss25* 08/27/18 12:0410

Conductivity @25C SM2510B 8450 umhos/cm 10 enb1 08/28/18 21:021

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 6.15 mg/L 0.4 pjb0.08* 08/25/18 2:114

Residue, Filterable (TDS) @180C

SM2540C 8110 mg/L 100 oah50 08/17/18 14:135

Sulfate D516-02/-07 - Turbidimetric 4510 mg/L 1000 mss2200* 08/30/18 11:27200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 24L46299-1808311348

Page 3: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-02

Sample ID: AW-1

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 16:16

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 635 mg/L 3 dcm0.5 08/29/18 15:275

Magnesium, dissolved M200.7 ICP 603 mg/L 5 dcm1 08/29/18 15:275

Potassium, dissolved M200.7 ICP 8 mg/L 5 dcm1 08/29/18 15:275

Sodium, dissolved M200.7 ICP 640 mg/L 5 dcm1 08/29/18 15:275

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 733 mg/L 20 mss25* 08/27/18 12:0410

Conductivity @25C SM2510B 7830 umhos/cm 10 enb1 08/28/18 21:041

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 4.66 mg/L 0.3 pjb0.06* 08/25/18 2:123

Residue, Filterable (TDS) @180C

SM2540C 7310 mg/L 40 oah20 08/17/18 14:162

Sulfate D516-02/-07 - Turbidimetric 4340 mg/L 1000 mss2200* 08/30/18 11:28200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 24L46299-1808311348

Page 4: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-03

Sample ID: 30-04 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 15:34

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 539 mg/L 3 dcm0.5 08/29/18 15:305

Magnesium, dissolved M200.7 ICP 419 mg/L 5 dcm1 08/29/18 15:305

Potassium, dissolved M200.7 ICP 9 mg/L 5 dcm1 08/29/18 15:305

Sodium, dissolved M200.7 ICP 523 mg/L 5 dcm1 08/29/18 15:305

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 641 mg/L 20 mss25* 08/27/18 11:4910

Conductivity @25C SM2510B 6360 umhos/cm 10 enb1 08/28/18 21:061

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 7.9 mg/L 0.5 pjb0.1* 08/25/18 2:135

Residue, Filterable (TDS) @180C

SM2540C 5510 mg/L 40 oah20 08/17/18 14:182

Sulfate D516-02/-07 - Turbidimetric 3350 mg/L 500 mss2100* 08/30/18 11:28100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 24L46299-1808311348

Page 5: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-04

Sample ID: 30-48

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 14:51

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 632 mg/L 3 dcm0.5 08/29/18 15:335

Magnesium, dissolved M200.7 ICP 79 mg/L 5 dcm1 08/29/18 15:335

Potassium, dissolved M200.7 ICP 5 mg/L 5 dcm1 08/29/18 15:335

Sodium, dissolved M200.7 ICP 85 mg/L 5 dcm1 08/29/18 15:335

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 649 mg/L 20 mss25* 08/27/18 11:4910

Conductivity @25C SM2510B 4900 umhos/cm 10 enb1 08/28/18 21:081

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 08/25/18 1:211

Residue, Filterable (TDS) @180C

SM2540C 4300 mg/L 40 nmc20 08/20/18 17:032

Sulfate D516-02/-07 - Turbidimetric 2490 mg/L 500 mss2100* 08/30/18 11:28100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 24L46299-1808311348

Page 6: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-05

Sample ID: 30-47

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 13:22

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 384 mg/L 1 dcm0.2 08/29/18 15:362

Magnesium, dissolved M200.7 ICP 168 mg/L 2 dcm0.4 08/29/18 15:362

Potassium, dissolved M200.7 ICP 7.6 mg/L 2 dcm0.4 08/29/18 15:362

Sodium, dissolved M200.7 ICP 245 mg/L 2 dcm0.4 08/29/18 15:362

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 743 mg/L 20 mss25* 08/27/18 11:5510

Conductivity @25C SM2510B 4790 umhos/cm 10 enb1 08/28/18 21:101

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.03 mg/L 0.1B pjb0.02* 08/25/18 1:231

Residue, Filterable (TDS) @180C

SM2540C 3940 mg/L 40 oah20 08/17/18 14:262

Sulfate D516-02/-07 - Turbidimetric 407 mg/L 100 mss220* 08/30/18 11:2720

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 24L46299-1808311348

Page 7: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-06

Sample ID: 31-71

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 12:41

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 529 mg/L 3 dcm0.5 08/29/18 15:405

Magnesium, dissolved M200.7 ICP 258 mg/L 5 dcm1 08/29/18 15:405

Potassium, dissolved M200.7 ICP 2 mg/L 5B dcm1 08/29/18 15:405

Sodium, dissolved M200.7 ICP 364 mg/L 5 dcm1 08/29/18 15:405

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 551 mg/L 20 mss25* 08/27/18 11:5510

Conductivity @25C SM2510B 5030 umhos/cm 10 enb1 08/28/18 21:121

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.07 mg/L 0.1B pjb0.02* 08/25/18 1:241

Residue, Filterable (TDS) @180C

SM2540C 4270 mg/L 40 nmc20 08/20/18 17:062

Sulfate D516-02/-07 - Turbidimetric 2180 mg/L 500 mss2100* 08/30/18 11:39100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 24L46299-1808311348

Page 8: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-07

Sample ID: 31-05 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 11:57

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 521 mg/L 3 dcm0.5 08/29/18 15:435

Magnesium, dissolved M200.7 ICP 587 mg/L 5 dcm1 08/29/18 15:435

Potassium, dissolved M200.7 ICP 20 mg/L 5 dcm1 08/29/18 15:435

Sodium, dissolved M200.7 ICP 429 mg/L 5 dcm1 08/29/18 15:435

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 577 mg/L 20 mss25* 08/27/18 11:5510

Conductivity @25C SM2510B 7070 umhos/cm 10 enb1 08/28/18 21:141

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.98 mg/L 0.1 pjb0.02* 08/25/18 1:251

Residue, Filterable (TDS) @180C

SM2540C 6240 mg/L 40 oah20 08/17/18 14:312

Sulfate D516-02/-07 - Turbidimetric 3220 mg/L 600 mss2120* 08/30/18 12:16120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 8 of 24L46299-1808311348

Page 9: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-08

Sample ID: 31-70 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/13/18 11:11

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 617 mg/L 3 dcm0.5 08/29/18 15:465

Magnesium, dissolved M200.7 ICP 376 mg/L 5 dcm1 08/29/18 15:465

Potassium, dissolved M200.7 ICP 12 mg/L 5 dcm1 08/29/18 15:465

Sodium, dissolved M200.7 ICP 629 mg/L 5 dcm1 08/29/18 15:465

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 860 mg/L 100 mss230* 08/27/18 12:0650

Conductivity @25C SM2510B 7150 umhos/cm 10 enb1 08/28/18 21:161

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 50.1 mg/L 2 pjb0.4* 08/25/18 1:2620

Residue, Filterable (TDS) @180C

SM2540C 5840 mg/L 40H oah20* 08/24/18 13:302

Sulfate D516-02/-07 - Turbidimetric 2280 mg/L 600 mss2120* 08/30/18 12:16120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 9 of 24L46299-1808311348

Page 10: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-09

Sample ID: AW-2

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/14/18 10:41

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 662 mg/L 3 dcm0.5 08/29/18 15:495

Magnesium, dissolved M200.7 ICP 202 mg/L 5 dcm1 08/29/18 15:495

Potassium, dissolved M200.7 ICP 6 mg/L 5 dcm1 08/29/18 15:495

Sodium, dissolved M200.7 ICP 651 mg/L 5 dcm1 08/29/18 15:495

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 401 mg/L 20 mss25* 08/27/18 11:5710

Conductivity @25C SM2510B 5970 umhos/cm 10 enb1 08/28/18 21:181

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 4.7 mg/L 0.5 pjb0.1 08/25/18 1:295

Residue, Filterable (TDS) @180C

SM2540C 5580 mg/L 40 oah20 08/17/18 14:372

Sulfate D516-02/-07 - Turbidimetric 2610 mg/L 600 mss2120* 08/30/18 12:16120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 10 of 24L46299-1808311348

Page 11: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-10

Sample ID: 32-51

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/14/18 11:43

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 503 mg/L 3 dcm0.5 08/29/18 15:535

Magnesium, dissolved M200.7 ICP 299 mg/L 5 dcm1 08/29/18 15:535

Potassium, dissolved M200.7 ICP 3 mg/L 5B dcm1 08/29/18 15:535

Sodium, dissolved M200.7 ICP 461 mg/L 5 dcm1 08/29/18 15:535

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 456 mg/L 20 mss25* 08/27/18 11:5710

Conductivity @25C SM2510B 5370 umhos/cm 10 enb1* 08/28/18 21:281

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 4.92 mg/L 0.3 pjb0.06 08/25/18 1:313

Residue, Filterable (TDS) @180C

SM2540C 4880 mg/L 40 oah20 08/17/18 14:392

Sulfate D516-02/-07 - Turbidimetric 2530 mg/L 600 mss2120* 08/30/18 12:16120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 11 of 24L46299-1808311348

Page 12: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46299-11

Sample ID: 32-50 TRB-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/14/18 12:31

Date Received: 08/16/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 510 mg/L 3 dcm0.5 08/29/18 16:025

Magnesium, dissolved M200.7 ICP 418 mg/L 5 dcm1 08/29/18 16:025

Potassium, dissolved M200.7 ICP 5 mg/L 5 dcm1 08/29/18 16:025

Sodium, dissolved M200.7 ICP 627 mg/L 5 dcm1 08/29/18 16:025

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 586 mg/L 20 mss25* 08/27/18 11:5710

Conductivity @25C SM2510B 6570 umhos/cm 10 enb1 08/28/18 21:391

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 3.62 mg/L 0.1 pjb0.02 08/25/18 2:031

Residue, Filterable (TDS) @180C

SM2540C 5880 mg/L 40 oah20 08/17/18 14:422

Sulfate D516-02/-07 - Turbidimetric 2840 mg/L 600 mss2120* 08/30/18 12:16120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 12 of 24L46299-1808311348

Page 13: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 13 of 24L46299-1808311348

Page 14: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46299Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455094

WG455094ICV 08/29/18 14:25 99ICV II180824-2 98.77 95 105mg/L100

WG455094ICB 08/29/18 14:31ICB U -0.3 0.3mg/L

WG455094LFB 08/29/18 14:44 98LFB II180827-2 66.89 85 115mg/L68.16145

L46279-05AS 08/29/18 15:01 60.8 93AS II180827-2 123.9 85 115mg/L68.16145

L46279-05ASD 08/29/18 15:04 60.8 92ASD II180827-2 123.2 185 115mg/L 2068.16145

L46335-04AS 08/29/18 16:09 6.5 98AS II180827-2 73.3 85 115mg/L68.16145

L46335-04ASD 08/29/18 16:12 6.5 97ASD II180827-2 72.85 185 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454949

WG454949ICB 08/27/18 8:15ICB U -1.5 1.5mg/L

WG454949ICV 08/27/18 8:15 101ICV WI180530-1 55.53 90 110mg/L54.89

WG454949LFB2 08/27/18 11:39 108LFB WI171229-5 32.44 90 110mg/L30.03

WG454949LFB1 08/27/18 11:41 105LFB WI171229-5 31.57 90 110mg/L30.03

L46154-01DUP 08/27/18 11:47 23.9DUP 23.04 4mg/L 20

L46293-01AS M108/27/18 11:47 2.5 112AS WI171229-5 36.02 90 110mg/L30.03

L46299-03DUP 08/27/18 11:49 641DUP 640.4 0mg/L 20

L46299-04AS M308/27/18 11:55 649 111AS 10XCL 682.4 90 110mg/L30

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455060

WG455060LCSW2 08/28/18 15:20 98LCSW PCN56415 1380 90 110umhos/cm1410

WG455060LCSW5 08/28/18 17:54 97LCSW PCN56415 1370 90 110umhos/cm1410

WG455060LCSW8 08/28/18 20:06 96LCSW PCN56415 1360 90 110umhos/cm1410

L46299-10DUP 08/28/18 21:37 5370DUP 5390 0umhos/cm 20

WG455060LCSW11 08/28/18 22:09 90LCSW PCN56415 1270 90 110umhos/cm1410

L46335-05DUP 08/28/18 23:18 128DUP 129 1umhos/cm 20

WG455060LCSW14 08/29/18 1:06 96LCSW PCN56415 1350 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455094

WG455094ICV 08/29/18 14:25 100ICV II180824-2 100.1 95 105mg/L100

WG455094ICB 08/29/18 14:31ICB U -0.6 0.6mg/L

WG455094LFB 08/29/18 14:44 92LFB II180827-2 46.47 85 115mg/L50.2933

L46279-05AS 08/29/18 15:01 36.9 89AS II180827-2 81.44 85 115mg/L50.2933

L46279-05ASD 08/29/18 15:04 36.9 88ASD II180827-2 81.29 085 115mg/L 2050.2933

L46335-04AS 08/29/18 16:09 1.5 93AS II180827-2 48.14 85 115mg/L50.2933

L46335-04ASD 08/29/18 16:12 1.5 92ASD II180827-2 47.83 185 115mg/L 2050.2933

Page 14 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46299Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454895

WG454895ICV 08/24/18 21:26 99ICV WI180602-1 2.388 90 110mg/L2.416

WG454895ICB 08/24/18 21:27ICB U -0.02 0.02mg/L

WG454900

WG454900LFB1 08/25/18 0:11 100LFB WI180703-7 2 90 110mg/L2

L46289-10AS 08/25/18 0:33 .08 103AS WI180703-7 2.136 90 110mg/L2

L46289-11DUP RA08/25/18 0:35 UDUP .025 200mg/L 20

WG454900LFB2 08/25/18 1:28 94LFB WI180703-7 1.881 90 110mg/L2

L46299-09AS 08/25/18 1:30 4.7 101AS WI180703-7 14.79 90 110mg/L10

L46299-10DUP 08/25/18 1:33 4.92DUP 4.9 0mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455094

WG455094ICV 08/29/18 14:25 99ICV II180824-2 19.88 95 105mg/L20

WG455094ICB 08/29/18 14:31ICB U -0.6 0.6mg/L

WG455094LFB 08/29/18 14:44 96LFB II180827-2 97.42 85 115mg/L101.3833

L46279-05AS 08/29/18 15:01 2 97AS II180827-2 99.92 85 115mg/L101.3833

L46279-05ASD 08/29/18 15:04 2 95ASD II180827-2 98.65 185 115mg/L 20101.3833

L46335-04AS 08/29/18 16:09 .7 98AS II180827-2 99.78 85 115mg/L101.3833

L46335-04ASD 08/29/18 16:12 .7 97ASD II180827-2 98.85 185 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454306

WG454306PBW 08/17/18 13:50PBW U -20 20mg/L

WG454306LCSW 08/17/18 13:52 103LCSW PCN56357 268 80 120mg/L260

L46299-03DUP 08/17/18 14:21 5510DUP 5660 3mg/L 10

L46312-02DUP 08/17/18 14:50 1300DUP 1320 2mg/L 10

WG454449

WG454449PBW 08/20/18 16:09PBW U -20 20mg/L

WG454449LCSW 08/20/18 16:11 98LCSW PCN56357 254 80 120mg/L260

L46299-06DUP 08/20/18 17:09 4270DUP 4270 0mg/L 10

WG454882

WG454882PBW 08/24/18 13:25PBW U -20 20mg/L

WG454882LCSW 08/24/18 13:27 105LCSW PCN56355 272 80 120mg/L260

L46489-09DUP RA08/24/18 13:56 192DUP 260 30mg/L 10

Page 15 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46299Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455094

WG455094ICV 08/29/18 14:25 100ICV II180824-2 99.89 95 105mg/L100

WG455094ICB 08/29/18 14:31ICB U -0.6 0.6mg/L

WG455094LFB 08/29/18 14:44 97LFB II180827-2 98.21 85 115mg/L100.8796

L46279-05AS 08/29/18 15:01 12.5 97AS II180827-2 110.1 85 115mg/L100.8796

L46279-05ASD 08/29/18 15:04 12.5 97ASD II180827-2 109.9 085 115mg/L 20100.8796

L46335-04AS 08/29/18 16:09 3 98AS II180827-2 101.5 85 115mg/L100.8796

L46335-04ASD 08/29/18 16:12 3 97ASD II180827-2 100.5 185 115mg/L 20100.8796

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455267

WG455267ICB 08/30/18 8:13ICB U -3 3mg/L

WG455267ICV 08/30/18 8:13 93ICV WI180827-2 18.6 90 110mg/L20

L46298-02DUP RA08/30/18 10:43 UDUP U 0mg/L 20

L46298-03AS M308/30/18 10:43 U 1940AS SO4TURB20X 194 90 110mg/L10

WG455267LFB 08/30/18 11:33 103LFB WI180726-1 10.3 90 110mg/L10

WG455268

WG455268ICB 08/30/18 8:13ICB U -3 3mg/L

WG455268ICV 08/30/18 8:13 93ICV WI180827-2 18.6 90 110mg/L20

WG455268LFB 08/30/18 11:51 92LFB WI180726-1 9.2 90 110mg/L10

L46165-01DUP RA08/30/18 12:05 2480DUP 2430 2mg/L 20

L46165-02AS M308/30/18 12:08 190 -50AS SO4TURB5X 185 90 110mg/L10

L46312-02AS M308/30/18 12:09 787 -300AS SO4TURB50X 757 90 110mg/L10

L46312-01DUP RA08/30/18 12:45 UDUP U 0mg/L 20

Page 16 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46299Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549491L46299-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549492L46299-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549493L46299-03

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549494L46299-04

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

REPAD.15.06.05.01

Page 17 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46299Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549495L46299-05

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549496L46299-06

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455267

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549497L46299-07

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455268

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549498L46299-08

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454900

H1 Sample prep or analysis performed past holding time. See case narrative.

SM2540CResidue, Filterable (TDS) @180CWG454882

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540C

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455268

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

REPAD.15.06.05.01

Page 18 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46299Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4549499L46299-09

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455268

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG45494910L46299-10

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG455060

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455268

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG45494911L46299-11

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455268

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

D516-02/-07 - Turbidimetric

REPAD.15.06.05.01

Page 19 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46299Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 20 of 24L46299-1808311348

Page 21: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/16/2018 11:18

L46299

Date Printed: 8/16/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

A change was made in the Sample Id Date:Time Line 1. Remarks section prior to ACZ custody.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------4312 3.4 <=6.0 15 N/A4062 1.8 <=6.0 14 N/A

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 21 of 24L46299-1808311348

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/16/2018 11:18

L46299

Date Printed: 8/16/2018

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 22 of 24L46299-1808311348

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Page 23 of 24L46299-1808311348

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Page 24 of 24L46299-1808311348

Page 25: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46195

Kent Applegate

August 27, 2018

Project ID: 4506946843

Report to:

cc: Clark Short, Angela Persico

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 10, 2018. This project has been assigned to ACZ's project number, L46195. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46195. 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 September 26, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 17L46195-1808271517

Page 26: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-01

Sample ID: 5-01

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/07/18 13:01

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 426 mg/L 3 dcm0.5 08/27/18 11:265

Magnesium, dissolved M200.7 ICP 223 mg/L 5 dcm1 08/27/18 11:265

Potassium, dissolved M200.7 ICP 2 mg/L 5B dcm1 08/27/18 11:265

Sodium, dissolved M200.7 ICP 374 mg/L 5 dcm1 08/27/18 11:265

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 165 mg/L 20 mss25* 08/17/18 12:5410

Conductivity @25C SM2510B 3690 umhos/cm 10 emk1* 08/17/18 20:421

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 7.06 mg/L 0.4 pjb0.08* 08/22/18 1:374

Residue, Filterable (TDS) @180C

SM2540C 4270 mg/L 40 nmc20* 08/11/18 10:172

Sulfate D516-02/-07 - Turbidimetric 2950 mg/L 600 las120 08/20/18 12:43120

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 17L46195-1808271517

Page 27: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-02

Sample ID: 32-58

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 10:11

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 602 mg/L 5 dcm1 08/27/18 11:2910

Magnesium, dissolved M200.7 ICP 1670 mg/L 10 dcm2 08/27/18 11:2910

Potassium, dissolved M200.7 ICP mg/L 10U dcm2 08/27/18 11:2910

Sodium, dissolved M200.7 ICP 1630 mg/L 10 dcm2 08/27/18 11:2910

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 3450 mg/L 100 mss230* 08/17/18 13:1850

Conductivity @25C SM2510B 11600 umhos/cm 10 emk1 08/17/18 20:441

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 35.7 mg/L 2 pjb0.3* 08/22/18 1:3815

Residue, Filterable (TDS) @180C

SM2540C 15000 mg/L 100 nmc50* 08/11/18 10:215

Sulfate D516-02/-07 - Turbidimetric 5680 mg/L 2500 las500* 08/20/18 12:43500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 17L46195-1808271517

Page 28: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-03

Sample ID: 23-85

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 11:05

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 594 mg/L 5 dcm1 08/27/18 11:3210

Magnesium, dissolved M200.7 ICP 1650 mg/L 10 dcm2 08/27/18 11:3210

Potassium, dissolved M200.7 ICP mg/L 10U dcm2 08/27/18 11:3210

Sodium, dissolved M200.7 ICP 1610 mg/L 10 dcm2 08/27/18 11:3210

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 3410 mg/L 100 mss230* 08/17/18 13:1850

Conductivity @25C SM2510B 11400 umhos/cm 10 emk1 08/17/18 20:461

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 35.8 mg/L 2 pjb0.3* 08/22/18 1:4015

Residue, Filterable (TDS) @180C

SM2540C 15300 mg/L 100 nmc50* 08/11/18 10:255

Sulfate D516-02/-07 - Turbidimetric 5900 mg/L 2500 las500* 08/20/18 12:43500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 17L46195-1808271517

Page 29: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-04

Sample ID: S-9

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 11:10

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 16.4 mg/L 3 dcm0.5* 08/27/18 11:365

Magnesium, dissolved M200.7 ICP 1410 mg/L 5 dcm1 08/27/18 11:365

Potassium, dissolved M200.7 ICP 14 mg/L 5 dcm1 08/27/18 11:365

Sodium, dissolved M200.7 ICP 1070 mg/L 5 dcm1 08/27/18 11:365

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2320 mg/L 100 mss230* 08/17/18 13:1850

Conductivity @25C SM2510B 7850 umhos/cm 10 emk1 08/17/18 20:481

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.04 mg/L 0.1B pjb0.02* 08/22/18 1:411

Residue, Filterable (TDS) @180C

SM2540C 9930 mg/L 100 nmc50* 08/11/18 10:295

Sulfate D516-02/-07 - Turbidimetric 3960 mg/L 500 las100* 08/20/18 12:16100

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 17L46195-1808271517

Page 30: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-05

Sample ID: 32-60

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 16:54

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 577 mg/L 5 dcm1* 08/27/18 11:3910

Magnesium, dissolved M200.7 ICP 1230 mg/L 10 dcm2 08/27/18 11:3910

Potassium, dissolved M200.7 ICP 14 mg/L 10 dcm2 08/27/18 11:3910

Sodium, dissolved M200.7 ICP 1540 mg/L 10 dcm2 08/27/18 11:3910

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2360 mg/L 100 mss230* 08/17/18 13:1850

Conductivity @25C SM2510B 9860 umhos/cm 10 emk1 08/17/18 20:511

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 10.6 mg/L 0.5 pjb0.1* 08/22/18 1:425

Residue, Filterable (TDS) @180C

SM2540C 13300 mg/L 200 nmc100 08/13/18 16:1810

Sulfate D516-02/-07 - Turbidimetric 4940 mg/L 2500 las500* 08/20/18 12:43500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 17L46195-1808271517

Page 31: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-06

Sample ID: S-12

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/09/18 10:45

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 623 mg/L 5 dcm1* 08/27/18 11:4210

Magnesium, dissolved M200.7 ICP 1170 mg/L 10 dcm2 08/27/18 11:4210

Potassium, dissolved M200.7 ICP 11 mg/L 10 dcm2 08/27/18 11:4210

Sodium, dissolved M200.7 ICP 1630 mg/L 10 dcm2 08/27/18 11:4210

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2820 mg/L 100 mss230* 08/17/18 13:1950

Conductivity @25C SM2510B 10200 umhos/cm 10 emk1 08/17/18 20:531

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 1.21 mg/L 0.1 pjb0.02* 08/22/18 1:251

Residue, Filterable (TDS) @180C

SM2540C 12700 mg/L 100 nmc50* 08/11/18 10:375

Sulfate D516-02/-07 - Turbidimetric 4120 mg/L 2500 las500* 08/20/18 12:45500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 17L46195-1808271517

Page 32: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46195-07

Sample ID: 32-72

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/09/18 11:24

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 439 mg/L 5 dcm1* 08/27/18 11:4510

Magnesium, dissolved M200.7 ICP 2190 mg/L 10 dcm2 08/27/18 11:4510

Potassium, dissolved M200.7 ICP 18 mg/L 10 dcm2 08/27/18 11:4510

Sodium, dissolved M200.7 ICP 345 mg/L 10 dcm2 08/27/18 11:4510

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 256 mg/L 20 mss25* 08/17/18 12:4810

Conductivity @25C SM2510B 7320 umhos/cm 10 emk1 08/17/18 20:551

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.21 mg/L 0.1 pjb0.02* 08/22/18 1:261

Residue, Filterable (TDS) @180C

SM2540C 14900 mg/L 200 nmc100 08/13/18 16:2410

Sulfate D516-02/-07 - Turbidimetric 8730 mg/L 2500 las500* 08/20/18 12:45500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 8 of 17L46195-1808271517

Page 33: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 9 of 17L46195-1808271517

Page 34: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46195Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 98ICV II180727-1 98.4 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.3 0.3mg/L

WG454778LFB 08/27/18 10:47 98LFB II180809-4 66.99 85 115mg/L68.16145

L46045-04AS 08/27/18 11:03 U 99AS II180809-4 67.26 85 115mg/L68.16145

L46045-04ASD 08/27/18 11:07 U 97ASD II180809-4 66.31 185 115mg/L 2068.16145

L46228-01AS M308/27/18 12:08 217 80AS II180809-4 271.5 85 115mg/L68.16145

L46228-01ASD M308/27/18 12:11 217 81ASD II180809-4 272.2 085 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454305

WG454305ICB 08/17/18 8:28ICB U -1.5 1.5mg/L

WG454305ICV 08/17/18 8:28 102ICV WI180530-1 56.08 90 110mg/L54.89

WG454305LFB 08/17/18 12:34 108LFB WI171229-5 32.43 90 110mg/L30.03

L46192-01AS M108/17/18 12:54 103 123AS 10XCL 139.9 90 110mg/L30

L46188-02DUP 08/17/18 14:08 61.5DUP 60.87 1mg/L 20

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454327

WG454327LCSW2 08/17/18 16:29 102LCSW PCN55810 1440 90 110umhos/cm1410

WG454327LCSW5 08/17/18 20:23 96LCSW PCN55810 1360 90 110umhos/cm1410

L46197-02DUP 08/17/18 21:35 1780DUP 1790 1umhos/cm 20

WG454327LCSW8 08/17/18 23:46 96LCSW PCN55810 1350 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 99ICV II180727-1 99.43 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 92LFB II180809-4 46.39 85 115mg/L50.2933

L46045-04AS 08/27/18 11:03 U 93AS II180809-4 46.53 85 115mg/L50.2933

L46045-04ASD 08/27/18 11:07 U 92ASD II180809-4 46.07 185 115mg/L 2050.2933

L46228-01AS 08/27/18 12:08 27.9 88AS II180809-4 72.31 85 115mg/L50.2933

L46228-01ASD 08/27/18 12:11 27.9 89ASD II180809-4 72.41 085 115mg/L 2050.2933

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454581

WG454581ICV 08/21/18 21:43 98ICV WI180602-1 2.374 90 110mg/L2.416

WG454581ICB 08/21/18 21:44ICB U -0.02 0.02mg/L

WG454585

WG454585LFB1 08/22/18 0:27 98LFB WI180703-7 1.957 90 110mg/L2

WG454585LFB2 08/22/18 1:08 99LFB WI180703-7 1.979 90 110mg/L2

L46188-01AS 08/22/18 1:10 U 105AS WI180703-7 2.098 90 110mg/L2

L46188-02DUP RA08/22/18 1:13 .15DUP .143 5mg/L 20

Page 10 of 17L46195-1808271517

Page 35: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46195Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 98ICV II180727-1 19.69 95 105mg/L20

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 96LFB II180809-4 97.45 85 115mg/L101.3833

L46045-04AS 08/27/18 11:03 U 96AS II180809-4 97.73 85 115mg/L101.3833

L46045-04ASD 08/27/18 11:07 U 96ASD II180809-4 96.85 185 115mg/L 20101.3833

L46228-01AS 08/27/18 12:08 4 96AS II180809-4 101.4 85 115mg/L101.3833

L46228-01ASD 08/27/18 12:11 4 96ASD II180809-4 101.6 085 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453813

WG453813PBW 08/11/18 9:15PBW U -20 20mg/L

WG453813LCSW 08/11/18 9:18 102LCSW PCN56037 266 80 120mg/L260

L46165-04DUP 08/11/18 10:02 658DUP 640 3mg/L 10

L46195-07DUP 08/11/18 10:45 13900DUP 14600 5mg/L 10

WG453909

WG453909PBW 08/13/18 15:50PBW U -20 20mg/L

WG453909LCSW 08/13/18 15:52 99LCSW PCN56037 258 80 120mg/L260

L46195-05DUP 08/13/18 16:21 13300DUP 13000 2mg/L 10

L46211-08DUP 08/13/18 16:50 504DUP 508 1mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 99ICV II180727-1 98.59 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 96LFB II180809-4 96.6 85 115mg/L100.8796

L46045-04AS 08/27/18 11:03 U 96AS II180809-4 96.54 85 115mg/L100.8796

L46045-04ASD 08/27/18 11:07 U 95ASD II180809-4 95.51 185 115mg/L 20100.8796

L46228-01AS 08/27/18 12:08 51.2 92AS II180809-4 143.7 85 115mg/L100.8796

L46228-01ASD 08/27/18 12:11 51.2 92ASD II180809-4 144.2 085 115mg/L 20100.8796

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454405

WG454405ICB 08/20/18 10:39ICB U -3 3mg/L

WG454405ICV 08/20/18 10:39 97ICV WI180809-9 19.3 90 110mg/L20

WG454405LFB 08/20/18 12:04 92LFB WI180726-1 9.2 90 110mg/L10

L46164-01DUP 08/20/18 12:13 581DUP 535 8mg/L 20

L46164-02AS 08/20/18 12:13 1120 100AS SO4TURB50X 1130 90 110mg/L10

L46202-04AS M308/20/18 12:21 1010 300AS SO4TURB50X 1040 90 110mg/L10

L46202-03DUP 08/20/18 12:54 11200DUP 11700 4mg/L 20

Page 11 of 17L46195-1808271517

Page 36: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46195Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4543051L46195-01

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG454327

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453813

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4543052L46195-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453813

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4543053L46195-03

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453813

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547784L46195-04

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454305

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453813

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

REPAD.15.06.05.01

Page 12 of 17L46195-1808271517

Page 37: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46195Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547785L46195-05

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454305

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547786L46195-06

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454305

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453813

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547787L46195-07

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454305

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454585

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

REPAD.15.06.05.01

Page 13 of 17L46195-1808271517

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46195Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 14 of 17L46195-1808271517

Page 39: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/10/2018 10:54

L46195

Date Printed: 8/13/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

X

Shipping Containers

A change was made in the Sample ID: Line 5 section prior to ACZ custody.

Some parameters were received past hold time.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------4491 2.4 <=6.0 15 N/A4656 1.7 <=6.0 15 N/A

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 15 of 17L46195-1808271517

Page 40: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/10/2018 10:54

L46195

Date Printed: 8/13/2018

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 16 of 17L46195-1808271517

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Page 17 of 17L46195-1808271517

Page 42: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46202

Kent Applegate

August 27, 2018

Project ID: 4506946843

Report to:

cc: Clark Short, Angela Persico, Michaella Gorospe

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 11, 2018. This project has been assigned to ACZ's project number, L46202. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46202. 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 September 26, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 14L46202-1808271510

Page 43: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46202-01

Sample ID: 32-43 N

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 09:21

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 677 mg/L 5 aeh1 08/24/18 16:5410

Magnesium, dissolved M200.7 ICP 1030 mg/L 10 aeh2 08/24/18 16:5410

Potassium, dissolved M200.7 ICP 16 mg/L 10 aeh2 08/24/18 16:5410

Sodium, dissolved M200.7 ICP 1210 mg/L 10 aeh2 08/24/18 16:5410

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2170 mg/L 80 wtc20* 08/23/18 13:0640

Conductivity @25C SM2510B 7920 umhos/cm 10 enb1 08/21/18 0:271

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.44 mg/L 0.1 pjb0.02* 08/23/18 0:251

Residue, Filterable (TDS) @180C

SM2540C 10600 mg/L 100 oah50 08/13/18 11:445

Sulfate D516-02/-07 - Turbidimetric 3900 mg/L 1000 las200* 08/20/18 12:45200

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 14L46202-1808271510

Page 44: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46202-02

Sample ID: 32-69

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 10:10

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 647 mg/L 5 aeh1 08/24/18 16:5710

Magnesium, dissolved M200.7 ICP 1110 mg/L 10 aeh2 08/24/18 16:5710

Potassium, dissolved M200.7 ICP 14 mg/L 10 aeh2 08/24/18 16:5710

Sodium, dissolved M200.7 ICP 1430 mg/L 10 aeh2 08/24/18 16:5710

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1940 mg/L 80 wtc20* 08/23/18 13:0640

Conductivity @25C SM2510B 8210 umhos/cm 10 enb1 08/21/18 0:291

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 35.5 mg/L 2 pjb0.3* 08/23/18 0:2615

Residue, Filterable (TDS) @180C

SM2540C 12100 mg/L 100 oah50* 08/13/18 11:505

Sulfate D516-02/-07 - Turbidimetric 5030 mg/L 2500 las500* 08/20/18 12:45500

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 14L46202-1808271510

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ACZ Sample ID: L46202-03

Sample ID: 32-01 R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 11:33

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 428 mg/L 10 aeh2 08/24/18 17:0020

Magnesium, dissolved M200.7 ICP 1420 mg/L 20 aeh4 08/24/18 17:0020

Potassium, dissolved M200.7 ICP 85 mg/L 20 aeh4 08/24/18 17:0020

Sodium, dissolved M200.7 ICP 1810 mg/L 20 aeh4 08/24/18 17:0020

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 2660 mg/L 80 wtc20* 08/23/18 13:0840

Conductivity @25C SM2510B 11900 umhos/cm 10 enb1* 08/21/18 0:381

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 1U pjb0.2* 08/23/18 0:2710

Residue, Filterable (TDS) @180C

SM2540C 22900 mg/L 200 oah100* 08/13/18 11:5310

Sulfate D516-02/-07 - Turbidimetric 11200 mg/L 5000 las1000* 08/20/18 12:541000

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 14L46202-1808271510

Page 46: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46202-04

Sample ID: 32-41

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 13:36

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 263 mg/L 1 aeh0.2 08/24/18 17:032

Magnesium, dissolved M200.7 ICP 251 mg/L 2 aeh0.4 08/24/18 17:032

Potassium, dissolved M200.7 ICP 12.9 mg/L 2 aeh0.4 08/24/18 17:032

Sodium, dissolved M200.7 ICP 342 mg/L 2 aeh0.4 08/24/18 17:032

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1340 mg/L 80 wtc20* 08/23/18 13:2740

Conductivity @25C SM2510B 5890 umhos/cm 10 emk1 08/23/18 16:271

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 08/23/18 0:301

Residue, Filterable (TDS) @180C

SM2540C 3430 mg/L 40 nmc20 08/15/18 19:192

Sulfate D516-02/-07 - Turbidimetric 1010 mg/L 250 las50* 08/20/18 12:2150

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 6 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46202Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454866

WG454866ICV 08/24/18 16:31 101ICV II180727-1 101.45 95 105mg/L100

WG454866ICB 08/24/18 16:37ICB U -0.3 0.3mg/L

WG454866LFB 08/24/18 16:50 101LFB II180809-4 68.87 85 115mg/L68.16145

L46203-01AS 08/24/18 17:10 39.6 96AS II180809-4 105.2 85 115mg/L68.16145

L46203-01ASD 08/24/18 17:13 39.6 96ASD II180809-4 104.9 085 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454610

WG454610ICB 08/23/18 12:08ICB U -1.5 1.5mg/L

WG454610ICV 08/23/18 12:08 107ICV WI180530-1 58.84 90 110mg/L54.89

L46197-01DUP 08/23/18 12:21 26.5DUP 26.04 2mg/L 20

L46197-02AS M108/23/18 12:21 14.9 113AS WI171229-5 48.9 90 110mg/L30.03

WG454610LFB1 08/23/18 13:06 104LFB WI171229-5 31.25 90 110mg/L30.03

WG454610LFB2 08/23/18 13:06 104LFB WI171229-5 31.2 90 110mg/L30.03

L46202-03DUP 08/23/18 13:08 2660DUP 2703 2mg/L 20

L46202-04AS M308/23/18 13:27 1340 870AS 40XCL 1601 90 110mg/L30

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454440

WG454440LCSW2 08/20/18 17:15 110LCSW PCN55810 1550 90 110umhos/cm1410

WG454440LCSW5 08/20/18 19:50 109LCSW PCN55810 1530 90 110umhos/cm1410

WG454440LCSW8 08/20/18 22:13 107LCSW PCN55810 1510 90 110umhos/cm1410

L46202-03DUP 08/21/18 0:46 11900DUP 11700 2umhos/cm 20

WG454440LCSW11 08/21/18 0:51 91LCSW PCN55810 1280 90 110umhos/cm1410

WG454789

WG454789LCSW2 08/23/18 16:06 103LCSW PCN55810 1450 90 110umhos/cm1410

L46241-02DUP 08/23/18 16:59 116DUP 117 1umhos/cm 20

WG454789LCSW5 08/23/18 17:56 104LCSW PCN55810 1470 90 110umhos/cm1410

WG454789LCSW8 08/23/18 21:37 104LCSW PCN55810 1460 90 110umhos/cm1410

WG454789LCSW11 08/24/18 0:35 104LCSW PCN55810 1470 90 110umhos/cm1410

WG454789LCSW14 08/24/18 3:31 103LCSW PCN55810 1450 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454866

WG454866ICV 08/24/18 16:31 102ICV II180727-1 102 95 105mg/L100

WG454866ICB 08/24/18 16:37ICB U -0.6 0.6mg/L

WG454866LFB 08/24/18 16:50 95LFB II180809-4 47.63 85 115mg/L50.2933

L46203-01AS 08/24/18 17:10 26.9 92AS II180809-4 73.14 85 115mg/L50.2933

L46203-01ASD 08/24/18 17:13 26.9 92ASD II180809-4 73 085 115mg/L 2050.2933

Page 7 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46202Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454699

WG454699ICV 08/22/18 22:05 100ICV WI180602-1 2.426 90 110mg/L2.416

WG454699ICB 08/22/18 22:07ICB U -0.02 0.02mg/L

WG454703

WG454703LFB 08/22/18 23:42 103LFB WI180703-7 2.064 90 110mg/L2

L46045-01AS 08/22/18 23:45 U 108AS WI180703-7 2.164 90 110mg/L2

L46045-02DUP RA08/22/18 23:47 UDUP U 0mg/L 20

L46202-03AS M208/23/18 0:29 U 77AS WI180703-7 15.46 90 110mg/L20

L46202-04DUP RA08/23/18 0:31 UDUP U 0mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454866

WG454866ICV 08/24/18 16:31 103ICV II180727-1 20.57 95 105mg/L20

WG454866ICB 08/24/18 16:37ICB U -0.6 0.6mg/L

WG454866LFB 08/24/18 16:50 99LFB II180809-4 100.8 85 115mg/L101.3833

L46203-01AS 08/24/18 17:10 8.2 98AS II180809-4 107.9 85 115mg/L101.3833

L46203-01ASD 08/24/18 17:13 8.2 98ASD II180809-4 107.7 085 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453860

WG453860PBW 08/13/18 11:10PBW 10 -20 20mg/L

WG453860LCSW 08/13/18 11:13 99LCSW PCN56037 258 80 120mg/L260

L46202-01DUP 08/13/18 11:47 10600DUP 10500 1mg/L 10

L46202-04DUP 08/13/18 12:00 3560DUP 3570 0mg/L 10

WG454138

WG454138PBW 08/15/18 19:16PBW U -20 20mg/L

WG454138LCSW 08/15/18 19:17 101LCSW PCN56042 262 80 120mg/L260

L46267-01DUP 08/15/18 19:39 29600DUP 30400 3mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454866

WG454866ICV 08/24/18 16:31 102ICV II180727-1 102.03 95 105mg/L100

WG454866ICB 08/24/18 16:37ICB U -0.6 0.6mg/L

WG454866LFB 08/24/18 16:50 100LFB II180809-4 100.8 85 115mg/L100.8796

L46203-01AS 08/24/18 17:10 122 93AS II180809-4 216 85 115mg/L100.8796

L46203-01ASD 08/24/18 17:13 122 93ASD II180809-4 215.9 085 115mg/L 20100.8796

Page 8 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46202Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454405

WG454405ICB 08/20/18 10:39ICB U -3 3mg/L

WG454405ICV 08/20/18 10:39 97ICV WI180809-9 19.3 90 110mg/L20

WG454405LFB 08/20/18 12:04 92LFB WI180726-1 9.2 90 110mg/L10

L46202-04AS M308/20/18 12:21 1010 300AS SO4TURB50X 1040 90 110mg/L10

L46202-03DUP 08/20/18 12:54 11200DUP 11700 4mg/L 20

Page 9 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46202Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4546101L46202-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4546102L46202-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453860

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4546103L46202-03

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG454440

D1 Sample required dilution due to matrix.M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M353.2 - H2SO4 preserved

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preserved

RO The duplicate originally assigned to this sample was not used for precision assessment because residue density exceeded the method limits. Another duplicate in the batch was used to assess precision. Method required duplicate frequency was not met.

SM2540CResidue, Filterable (TDS) @180CWG453860

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG4546104L46202-04

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preserved

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG454405

REPAD.15.06.05.01

Page 10 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46202Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 11 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/11/2018 11:26

L46202

Date Printed: 8/13/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

A change was made in the Matrix Line1 section prior to ACZ

custody.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

3920 4.8 <=6.0 14 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 12 of 14L46202-1808271510

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/11/2018 11:26

L46202

Date Printed: 8/13/2018

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 13 of 14L46202-1808271510

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Page 14 of 14L46202-1808271510

Page 56: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46350

Kent Applegate

September 04, 2018

Project ID: 4506946843

Report to:

cc: Michaella Gorospe, Clark Short

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 18, 2018. This project has been assigned to ACZ's project number, L46350. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46350. 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 October 04, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 11L46350-1809041537

Page 57: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46350-01

Sample ID: 32-52

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/16/18 17:29

Date Received: 08/18/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 326 mg/L 1 dcm0.2 08/29/18 22:032

Magnesium, dissolved M200.7 ICP 85.9 mg/L 2 dcm0.4 08/29/18 22:032

Potassium, dissolved M200.7 ICP 1.6 mg/L 2B dcm0.4 08/29/18 22:032

Sodium, dissolved M200.7 ICP 452 mg/L 2 dcm0.4 08/29/18 22:032

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 236 mg/L 20 mss25* 09/04/18 10:4010

Conductivity @25C SM2510B 4080 umhos/cm 10 enb1 08/28/18 23:561

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U krh0.02* 08/29/18 15:131

Residue, Filterable (TDS) @180C

SM2540C 3340 mg/L 20 oah10 08/21/18 10:571

Sulfate D516-02/-07 - Turbidimetric 1690 mg/L 250 mss250* 08/31/18 9:3850

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 11L46350-1809041537

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 3 of 11L46350-1809041537

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46350Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455212

WG455212ICV 08/29/18 20:32 101ICV II180824-2 100.9 95 105mg/L100

WG455212ICB 08/29/18 20:38ICB U -0.3 0.3mg/L

WG455212LFB 08/29/18 20:50 102LFB II180827-2 69.28 85 115mg/L68.16145

L46328-02AS 08/29/18 21:48 45.6 97AS II180827-2 111.9 85 115mg/L68.16145

L46328-02ASD 08/29/18 21:51 45.6 97ASD II180827-2 111.6 085 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455494

WG455494ICB 09/04/18 9:16ICB U -1.5 1.5mg/L

WG455494ICV 09/04/18 9:16 102ICV WI180530-1 55.95 90 110mg/L54.89

WG455494LFB1 09/04/18 10:25 106LFB WI171229-5 31.82 90 110mg/L30.03

L46389-01DUP RA09/04/18 10:25 4.4DUP 4.39 0mg/L 20

L46389-02AS 09/04/18 10:25 4.4 107AS WI171229-5 36.52 90 110mg/L30.03

WG455494LFB2 09/04/18 10:34 106LFB WI171229-5 31.86 90 110mg/L30.03

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455060

WG455060LCSW2 08/28/18 15:20 98LCSW PCN56415 1380 90 110umhos/cm1410

WG455060LCSW5 08/28/18 17:54 97LCSW PCN56415 1370 90 110umhos/cm1410

WG455060LCSW8 08/28/18 20:06 96LCSW PCN56415 1360 90 110umhos/cm1410

WG455060LCSW11 08/28/18 22:09 90LCSW PCN56415 1270 90 110umhos/cm1410

L46399-25DUP 08/29/18 0:43 232DUP 231 0umhos/cm 20

WG455060LCSW14 08/29/18 1:06 96LCSW PCN56415 1350 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455212

WG455212ICV 08/29/18 20:32 102ICV II180824-2 101.78 95 105mg/L100

WG455212ICB 08/29/18 20:38ICB U -0.6 0.6mg/L

WG455212LFB 08/29/18 20:50 96LFB II180827-2 48.28 85 115mg/L50.2933

L46328-02AS 08/29/18 21:48 1.8 97AS II180827-2 50.72 85 115mg/L50.2933

L46328-02ASD 08/29/18 21:51 1.8 95ASD II180827-2 49.36 385 115mg/L 2050.2933

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455205

WG455205ICV 08/29/18 15:09 96ICV WI180602-1 2.31 90 110mg/L2.416

WG455205ICB 08/29/18 15:10ICB U -0.02 0.02mg/L

WG455205LFB 08/29/18 15:11 99LFB WI180703-7 1.987 90 110mg/L2

L46473-01AS 08/29/18 15:15 U 100AS WI180703-7 2.009 90 110mg/L2

L46562-01DUP RA08/29/18 15:17 UDUP U 0mg/L 20

Page 4 of 11L46350-1809041537

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46350Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455212

WG455212ICV 08/29/18 20:32 101ICV II180824-2 20.2 95 105mg/L20

WG455212ICB 08/29/18 20:38ICB U -0.6 0.6mg/L

WG455212LFB 08/29/18 20:50 100LFB II180827-2 101.5 85 115mg/L101.3833

L46328-02AS 08/29/18 21:48 .3 103AS II180827-2 104.7 85 115mg/L101.3833

L46328-02ASD 08/29/18 21:51 .3 100ASD II180827-2 101.4 385 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454494

WG454494PBW 08/21/18 10:05PBW U -20 20mg/L

WG454494LCSW 08/21/18 10:07 95LCSW PCN56357 248 80 120mg/L260

L46351-02DUP 08/21/18 11:05 2010DUP 2020 0mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455212

WG455212ICV 08/29/18 20:32 102ICV II180824-2 102.15 95 105mg/L100

WG455212ICB 08/29/18 20:38ICB U -0.6 0.6mg/L

WG455212LFB 08/29/18 20:50 101LFB II180827-2 102.2 85 115mg/L100.8796

L46328-02AS 08/29/18 21:48 5.7 103AS II180827-2 109.6 85 115mg/L100.8796

L46328-02ASD 08/29/18 21:51 5.7 101ASD II180827-2 107.1 285 115mg/L 20100.8796

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455356

WG455356ICB 08/31/18 8:19ICB U -3 3mg/L

WG455356ICV 08/31/18 8:19 98ICV WI180827-2 19.6 90 110mg/L20

L45307-06DUP 08/31/18 9:21 180DUP 181 1mg/L 20

L45307-07AS M308/31/18 9:23 111 80AS SO4TURB5X 119 90 110mg/L10

WG455356LFB 08/31/18 9:37 103LFB WI180726-1 10.3 90 110mg/L10

Page 5 of 11L46350-1809041537

Page 61: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46350Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG4554941L46350-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG455205

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455356

REPAD.15.06.05.01

Page 6 of 11L46350-1809041537

Page 62: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46350Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 7 of 11L46350-1809041537

Page 63: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/18/2018 11:35

L46350

Date Printed: 8/20/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------4428 4.5 <=6.0 15 N/A

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 8 of 11L46350-1809041537

Page 64: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/18/2018 11:35

L46350

Date Printed: 8/20/2018

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 9 of 11L46350-1809041537

Page 65: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

Page 10 of 11L46350-1809041537

Page 66: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

Page 11 of 11L46350-1809041537

Page 67: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46194

Kent Applegate

September 19, 2018

Project ID: 4506946843

Report to:

cc: Clark Short, Angela Persico

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 10, 2018. This project has been assigned to ACZ's project number, L46194. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46194. 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 October 19, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 44L46194-1809190927

Page 68: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Case

Narrative

Rio Algom Mining Company

ACZ Project ID: L46194

September 19, 2018

Sample Receipt

Sample Analysis

Holding Times

Text10:ACZ Laboratories, Inc. (ACZ) received 11 groundwater samples from Rio Algom Mining Company on August 10, 2018. The samples were received in good condition. Upon receipt, the sample custodian removed the samples from the cooler, inspected the contents, and logged the samples into ACZ's computerized Laboratory Information Management System (LIMS). The samples were assigned ACZ LIMS project number L46194. The custodian verified the sample information entered into the computer against the chain of custody (COC) forms and sample bottle labels.

Text10:These samples were analyzed for inorganic, radiochemistry parameters. The individual methods are referenced on both, the ACZ invoice and the analytical reports. The extended qualifier reports may contain footnotes qualifying specific elements due to QC failures. In addition the following has been noted with this specific project:

1. (N1) Carrier recovery outside of acceptance limits due to sx matrix. Sample had excessive amounts of precipitation after step 11.16 resulting in low carrier yield.

Text10:All analyses were performed within EPA recommended holding times.

Project ID: 4506946843

REPAD.03.06.05.01 Page 2 of 44L46194-1809190927

Page 69: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-01

Sample ID: 32-45 KD-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/06/18 16:21

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Antimony, dissolved M200.8 ICP-MS 0.0011 mg/L 0.002B msh0.0004 08/31/18 1:491

Arsenic, dissolved M200.8 ICP-MS 0.0005 mg/L 0.001B msh0.0002 08/31/18 1:491

Barium, dissolved M200.7 ICP 0.031 mg/L 0.02 aeh0.003 08/29/18 16:461

Beryllium, dissolved M200.8 ICP-MS mg/L 0.0003U msh0.00005 08/31/18 1:491

Cadmium, dissolved M200.8 ICP-MS mg/L 0.0005U msh0.0001 08/31/18 1:491

Calcium, dissolved M200.7 ICP 222 mg/L 0.5 aeh0.1* 08/29/18 16:461

Iron, dissolved M200.7 ICP 0.05 mg/L 0.05 aeh0.02 08/29/18 16:461

Lead, dissolved M200.8 ICP-MS 0.0001 mg/L 0.0005B msh0.0001 08/31/18 1:491

Magnesium, dissolved M200.7 ICP 56.8 mg/L 1 aeh0.2 08/29/18 16:461

Molybdenum, dissolved M200.8 ICP-MS 0.133 mg/L 0.003 msh0.0005 08/31/18 1:491

Nickel, dissolved M200.8 ICP-MS 0.0018 mg/L 0.003B msh0.0006 08/31/18 1:491

Potassium, dissolved M200.7 ICP 7.2 mg/L 1 aeh0.2 08/29/18 16:461

Selenium, dissolved SM 3114 B, AA-Hydride 0.0011 mg/L 0.005B che0.001* 08/16/18 13:291

Sodium, dissolved M200.7 ICP 164 mg/L 1 aeh0.2 08/29/18 16:461

Uranium, dissolved M200.8 ICP-MS 0.0588 mg/L 0.0005 msh0.0001 08/31/18 1:491

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

322 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 322 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 2.2 % calc09/18/18 0:00

Sum of Anions 22 meq/L calc09/18/18 0:00

Sum of Cations 23 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 95.2 mg/L 2 mss20.5* 08/27/18 12:451

Conductivity @25C SM2510B 1890 umhos/cm 10 emk1 08/17/18 17:541

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003 08/13/18 11:531

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.55 mg/L 0.1 pjb0.02 08/29/18 0:171

Residue, Filterable (TDS) @180C

SM2540C 1490 mg/L 20 nmc10 08/10/18 16:521

Sulfate D516-02/-07 - Turbidimetric 605 mg/L 250 mss250* 08/30/18 13:2150

TDS (calculated) Calculation 1350 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.10 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 44L46194-1809190927

Page 70: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-02

Sample ID: 31-01 TRA-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/06/18 15:17

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 205 mg/L 0.5 aeh0.1* 08/29/18 16:551

Iron, dissolved M200.7 ICP 0.06 mg/L 0.05 aeh0.02 08/29/18 16:551

Magnesium, dissolved M200.7 ICP 88.4 mg/L 1 aeh0.2 08/29/18 16:551

Molybdenum, dissolved M200.8 ICP-MS 0.0088 mg/L 0.003 msh0.0005 08/31/18 1:521

Nickel, dissolved M200.8 ICP-MS 0.0036 mg/L 0.003 msh0.0006 08/31/18 1:521

Potassium, dissolved M200.7 ICP 6.6 mg/L 1 aeh0.2 08/29/18 16:551

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U che0.001* 08/16/18 13:311

Sodium, dissolved M200.7 ICP 150 mg/L 1 aeh0.2 08/29/18 16:551

Uranium, dissolved M200.8 ICP-MS 0.0008 mg/L 0.0005 msh0.0001 08/31/18 1:521

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

154 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 154 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -2.0 % calc09/18/18 0:00

Sum of Anions 25 meq/L calc09/18/18 0:00

Sum of Cations 24 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 21.2 mg/L 2 mss20.5* 08/27/18 12:451

Conductivity @25C SM2510B 1850 umhos/cm 10 emk1 08/17/18 18:131

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003 08/13/18 11:591

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.03 mg/L 0.1B pjb0.02 08/29/18 0:181

Residue, Filterable (TDS) @180C

SM2540C 1590 mg/L 20H oah10* 08/15/18 11:211

Sulfate D516-02/-07 - Turbidimetric 1000 mg/L 250 mss250* 08/30/18 13:2150

TDS (calculated) Calculation 1570 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.01 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 44L46194-1809190927

Page 71: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-03

Sample ID: 31-02 TRB-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/06/18 14:20

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 675 mg/L 3 aeh0.5* 08/29/18 16:585

Iron, dissolved M200.7 ICP 6.2 mg/L 0.3 aeh0.1 08/29/18 16:585

Magnesium, dissolved M200.7 ICP 771 mg/L 5 aeh1 08/29/18 16:585

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U msh0.003 08/31/18 2:015

Nickel, dissolved M200.8 ICP-MS mg/L 0.02U msh0.003 08/31/18 2:015

Potassium, dissolved M200.7 ICP 20 mg/L 5 aeh1 08/29/18 16:585

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U che0.001* 08/16/18 13:331

Sodium, dissolved M200.7 ICP 633 mg/L 5 aeh1 08/29/18 16:585

Uranium, dissolved M200.8 ICP-MS 0.0037 mg/L 0.003 msh0.0005 08/31/18 2:015

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1100 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 1100 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -0.4 % calc09/18/18 0:00

Sum of Anions 127 meq/L calc09/18/18 0:00

Sum of Cations 126 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 1150 mg/L 100 mss230 08/27/18 13:3650

Conductivity @25C SM2510B 7710 umhos/cm 10 emk1 08/17/18 18:311

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003* 08/13/18 12:011

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 08/29/18 0:241

Residue, Filterable (TDS) @180C

SM2540C 7770 mg/L 100H oah50* 08/15/18 11:245

Sulfate D516-02/-07 - Turbidimetric 3490 mg/L 1250 mss2250* 08/30/18 13:21250

TDS (calculated) Calculation 7420 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.05 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 5 of 44L46194-1809190927

Page 72: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-04

Sample ID: 36-06 KD

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/06/18 12:00

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Antimony, dissolved M200.8 ICP-MS mg/L 0.01U msh0.002 08/31/18 2:045

Arsenic, dissolved M200.8 ICP-MS 0.005 mg/L 0.005 msh0.001 08/31/18 2:045

Barium, dissolved M200.7 ICP mg/L 0.08U aeh0.02 08/29/18 17:015

Beryllium, dissolved M200.8 ICP-MS 0.0092 mg/L 0.001 msh0.0003 08/31/18 2:045

Cadmium, dissolved M200.8 ICP-MS 0.0077 mg/L 0.003 msh0.0005 08/31/18 2:045

Calcium, dissolved M200.7 ICP 519 mg/L 3 aeh0.5* 08/29/18 17:015

Iron, dissolved M200.7 ICP 12.4 mg/L 0.3 aeh0.1 08/29/18 17:015

Lead, dissolved M200.8 ICP-MS 0.0018 mg/L 0.003B msh0.0005 08/31/18 2:045

Magnesium, dissolved M200.7 ICP 338 mg/L 5 aeh1 08/29/18 17:015

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U msh0.003 08/31/18 2:045

Nickel, dissolved M200.8 ICP-MS 0.131 mg/L 0.02 msh0.003 08/31/18 2:045

Potassium, dissolved M200.7 ICP 12 mg/L 5 aeh1 08/29/18 17:015

Selenium, dissolved SM 3114 B, AA-Hydride 0.0026 mg/L 0.005B che0.001* 08/16/18 13:351

Sodium, dissolved M200.7 ICP 499 mg/L 5 aeh1 08/29/18 17:015

Uranium, dissolved M200.8 ICP-MS 0.463 mg/L 0.003 msh0.0005 08/31/18 2:045

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

mg/L 20U emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity mg/L 20U emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -7.8 % calc09/18/18 0:00

Sum of Anions 90 meq/L calc09/18/18 0:00

Sum of Cations 77 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 930 mg/L 100 mss230 08/27/18 13:3650

Conductivity @25C SM2510B 6670 umhos/cm 10 emk1 08/17/18 18:351

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003 08/13/18 12:051

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 08/29/18 0:251

Residue, Filterable (TDS) @180C

SM2540C 6050 mg/L 40 nmc20 08/13/18 16:082

Sulfate D516-02/-07 - Turbidimetric 3050 mg/L 600 mss2120* 08/30/18 13:27120

TDS (calculated) Calculation 5360 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.13 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 6 of 44L46194-1809190927

Page 73: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-05

Sample ID: 5-08 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/07/18 09:52

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 524 mg/L 1 aeh0.2* 08/29/18 17:042

Iron, dissolved M200.7 ICP mg/L 0.1U aeh0.04 08/29/18 17:042

Magnesium, dissolved M200.7 ICP 185 mg/L 2 aeh0.4 08/29/18 17:042

Molybdenum, dissolved M200.8 ICP-MS 0.004 mg/L 0.005B msh0.001 08/31/18 2:072

Nickel, dissolved M200.8 ICP-MS 0.002 mg/L 0.006B msh0.001 08/31/18 2:072

Potassium, dissolved M200.7 ICP 4.0 mg/L 2 aeh0.4 08/29/18 17:042

Selenium, dissolved SM 3114 B, AA-Hydride 0.0095 mg/L 0.005 che0.001* 08/16/18 13:371

Sodium, dissolved M200.7 ICP 302 mg/L 2 aeh0.4 08/29/18 17:042

Uranium, dissolved M200.8 ICP-MS 0.0235 mg/L 0.001 msh0.0002 08/31/18 2:072

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

234 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 234 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 4.8 % calc09/18/18 0:00

Sum of Anions 50.0 meq/L calc09/18/18 0:00

Sum of Cations 55 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 164 mg/L 20 mss25 08/27/18 13:0010

Conductivity @25C SM2510B 3760 umhos/cm 10 emk1 08/17/18 18:441

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 21.6 mg/L 1 pjb0.2 08/29/18 1:0610

Residue, Filterable (TDS) @180C

SM2540C 3810 mg/L 20H oah10* 08/15/18 11:271

Sulfate D516-02/-07 - Turbidimetric 1940 mg/L 500 mss2100* 08/30/18 13:28100

TDS (calculated) Calculation 3260 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.17 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 7 of 44L46194-1809190927

Page 74: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-06

Sample ID: 5-04 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/07/18 11:04

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 286 mg/L 3 aeh0.5* 08/29/18 17:085

Iron, dissolved M200.7 ICP 46.4 mg/L 0.3 aeh0.1 08/29/18 17:085

Magnesium, dissolved M200.7 ICP 674 mg/L 5 aeh1 08/29/18 17:085

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U msh0.003 08/31/18 2:115

Nickel, dissolved M200.8 ICP-MS mg/L 0.02U msh0.003 08/31/18 2:115

Potassium, dissolved M200.7 ICP 5 mg/L 5 aeh1 08/29/18 17:085

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U che0.001* 08/16/18 13:431

Sodium, dissolved M200.7 ICP 315 mg/L 5 aeh1 08/29/18 17:085

Uranium, dissolved M200.8 ICP-MS mg/L 0.003U msh0.0005 08/31/18 2:115

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

15.3 mg/L 20B emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 15.3 mg/L 20B emk2* 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 2.4 % calc09/18/18 0:00

Sum of Anions 82 meq/L calc09/18/18 0:00

Sum of Cations 86.0 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 970 mg/L 20 mss25 08/27/18 13:0010

Conductivity @25C SM2510B 5070 umhos/cm 10 emk1* 08/17/18 18:521

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 08/29/18 1:071

Residue, Filterable (TDS) @180C

SM2540C 5440 mg/L 100H oah50* 08/15/18 11:295

Sulfate D516-02/-07 - Turbidimetric 2610 mg/L 500 mss2100* 08/30/18 13:28100

TDS (calculated) Calculation 4920 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.11 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 8 of 44L46194-1809190927

Page 75: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-07

Sample ID: 5-73 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/07/18 15:22

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 797 mg/L 3 aeh0.5* 08/29/18 17:165

Iron, dissolved M200.7 ICP mg/L 0.3U aeh0.1 08/29/18 17:165

Magnesium, dissolved M200.7 ICP 376 mg/L 5 aeh1 08/29/18 17:165

Molybdenum, dissolved M200.8 ICP-MS 0.005 mg/L 0.01B msh0.003 08/31/18 2:205

Nickel, dissolved M200.8 ICP-MS 0.011 mg/L 0.02B msh0.003 08/31/18 2:205

Potassium, dissolved M200.7 ICP 2 mg/L 5B aeh1 08/29/18 17:165

Selenium, dissolved SM 3114 B, AA-Hydride 0.105 mg/L 0.025 che0.005 08/16/18 14:225

Sodium, dissolved M200.7 ICP 779 mg/L 5 aeh1 08/29/18 17:165

Uranium, dissolved M200.8 ICP-MS 1.64 mg/L 0.003 msh0.0005 08/31/18 2:205

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

592 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 592 mg/L 20 emk2* 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 8.2 % calc09/18/18 0:00

Sum of Anions 89 meq/L calc09/18/18 0:00

Sum of Cations 105 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 1520 mg/L 100 mss230 08/27/18 13:3650

Conductivity @25C SM2510B 6620 umhos/cm 10 emk1* 08/17/18 19:031

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 5.24 mg/L 0.3 pjb0.06 08/29/18 2:323

Residue, Filterable (TDS) @180C

SM2540C 6510 mg/L 100H oah50* 08/21/18 10:105

Sulfate D516-02/-07 - Turbidimetric 1630 mg/L 1250 mss2250* 08/30/18 13:22250

TDS (calculated) Calculation 5470 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.19 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 9 of 44L46194-1809190927

Page 76: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-08

Sample ID: 5-03 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/07/18 17:01

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 543 mg/L 3 aeh0.5* 08/29/18 17:205

Iron, dissolved M200.7 ICP mg/L 0.3U aeh0.1 08/29/18 17:205

Magnesium, dissolved M200.7 ICP 290 mg/L 5 aeh1 08/29/18 17:205

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U msh0.003 08/31/18 2:235

Nickel, dissolved M200.8 ICP-MS mg/L 0.02U msh0.003 08/31/18 2:235

Potassium, dissolved M200.7 ICP 4 mg/L 5B aeh1 08/29/18 17:205

Selenium, dissolved SM 3114 B, AA-Hydride 0.0016 mg/L 0.005B che0.001* 08/16/18 13:471

Sodium, dissolved M200.7 ICP 442 mg/L 5 aeh1 08/29/18 17:205

Uranium, dissolved M200.8 ICP-MS 0.0926 mg/L 0.003 msh0.0005 08/31/18 2:235

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

299 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 299 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 2.9 % calc09/18/18 0:00

Sum of Anions 67 meq/L calc09/18/18 0:00

Sum of Cations 71 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 604 mg/L 20 mss25 08/27/18 13:0210

Conductivity @25C SM2510B 4040 umhos/cm 10 emk1 08/17/18 19:131

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.46 mg/L 0.1 pjb0.02 08/29/18 0:331

Residue, Filterable (TDS) @180C

SM2540C 4430 mg/L 40 nmc20 08/13/18 16:102

Sulfate D516-02/-07 - Turbidimetric 2080 mg/L 500 mss2100* 08/30/18 15:03100

TDS (calculated) Calculation 4150 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.07 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 10 of 44L46194-1809190927

Page 77: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-09

Sample ID: 32-59 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 08:46

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 562 mg/L 3 aeh0.5* 08/29/18 17:235

Iron, dissolved M200.7 ICP mg/L 0.3U aeh0.1 08/29/18 17:235

Magnesium, dissolved M200.7 ICP 244 mg/L 5 aeh1 08/29/18 17:235

Molybdenum, dissolved M200.8 ICP-MS 0.004 mg/L 0.01B msh0.003 08/31/18 2:265

Nickel, dissolved M200.8 ICP-MS mg/L 0.02U msh0.003 08/31/18 2:265

Potassium, dissolved M200.7 ICP 2 mg/L 5B aeh1 08/29/18 17:235

Selenium, dissolved SM 3114 B, AA-Hydride 0.249 mg/L 0.05 che0.01 08/16/18 14:3110

Sodium, dissolved M200.7 ICP 535 mg/L 5 aeh1 08/29/18 17:235

Uranium, dissolved M200.8 ICP-MS 0.210 mg/L 0.003 msh0.0005 08/31/18 2:265

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

327 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 327 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 9.9 % calc09/18/18 0:00

Sum of Anions 59.0 meq/L calc09/18/18 0:00

Sum of Cations 72 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 547 mg/L 20 mss25 08/27/18 13:0210

Conductivity @25C SM2510B 4110 umhos/cm 10 emk1 08/17/18 19:221

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 2.39 mg/L 0.1 pjb0.02 08/29/18 0:341

Residue, Filterable (TDS) @180C

SM2540C 4530 mg/L 40 nmc20 08/13/18 16:132

Sulfate D516-02/-07 - Turbidimetric 1770 mg/L 500 mss2100* 08/30/18 15:03100

TDS (calculated) Calculation 3860 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.17 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 11 of 44L46194-1809190927

Page 78: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-10

Sample ID: 31-61 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 15:56

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 568 mg/L 5 aeh1 08/29/18 17:2610

Iron, dissolved M200.7 ICP mg/L 0.5U aeh0.2 08/29/18 17:2610

Magnesium, dissolved M200.7 ICP 1370 mg/L 10 aeh2 08/29/18 17:2610

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.03U msh0.005 08/31/18 2:3010

Nickel, dissolved M200.8 ICP-MS 0.054 mg/L 0.03 msh0.006 08/31/18 2:3010

Potassium, dissolved M200.7 ICP 29 mg/L 10 aeh2 08/29/18 17:2610

Selenium, dissolved SM 3114 B, AA-Hydride 0.0070 mg/L 0.005 che0.001 08/16/18 13:511

Sodium, dissolved M200.7 ICP 1760 mg/L 10 aeh2 08/29/18 17:2610

Uranium, dissolved M200.8 ICP-MS 0.646 mg/L 0.005 msh0.001 08/31/18 2:3010

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1860 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 1860 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -2.4 % calc09/18/18 0:00

Sum of Anions 230 meq/L calc09/18/18 0:00

Sum of Cations 219 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 2010 mg/L 100 mss230 08/27/18 13:3650

Conductivity @25C SM2510B 11600 umhos/cm 10 emk1 08/17/18 19:451

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 7.46 mg/L 0.4 pjb0.08 08/29/18 1:154

Residue, Filterable (TDS) @180C

SM2540C 14100 mg/L 200 nmc100 08/13/18 16:1610

Sulfate D516-02/-07 - Turbidimetric 6490 mg/L 2500 mss2500* 08/30/18 14:23500

TDS (calculated) Calculation 13400 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.05 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 12 of 44L46194-1809190927

Page 79: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-11

Sample ID: 36-02 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/08/18 09:18

Date Received: 08/10/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 385 mg/L 3 aeh0.5 08/29/18 17:295

Iron, dissolved M200.7 ICP 24.1 mg/L 0.3 aeh0.1 08/29/18 17:295

Magnesium, dissolved M200.7 ICP 1190 mg/L 5 aeh1 08/29/18 17:295

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U msh0.003 08/31/18 2:335

Nickel, dissolved M200.8 ICP-MS 0.005 mg/L 0.02B msh0.003 08/31/18 2:335

Potassium, dissolved M200.7 ICP 16 mg/L 5 aeh1 08/29/18 17:295

Selenium, dissolved SM 3114 B, AA-Hydride 0.0013 mg/L 0.005B che0.001 08/16/18 13:581

Sodium, dissolved M200.7 ICP 676 mg/L 5 aeh1 08/29/18 17:295

Uranium, dissolved M200.8 ICP-MS 0.0031 mg/L 0.003 msh0.0005 08/31/18 2:335

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1180 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 1180 mg/L 20 emk2* 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance 3.9 % calc09/18/18 0:00

Sum of Anions 137 meq/L calc09/18/18 0:00

Sum of Cations 148 meq/L calc09/18/18 0:00

Chloride SM4500Cl-E 2020 mg/L 100 mss230 08/27/18 13:3650

Conductivity @25C SM2510B 7140 umhos/cm 10 emk1* 08/17/18 20:021

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003* 08/13/18 12:151

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02 08/29/18 0:411

Residue, Filterable (TDS) @180C

SM2540C 8500 mg/L 100 oah50* 08/15/18 11:345

Sulfate D516-02/-07 - Turbidimetric 2700 mg/L 1250 mss2250* 08/30/18 14:23250

TDS (calculated) Calculation 7730 mg/L calc09/18/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.10 calc09/18/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 13 of 44L46194-1809190927

Page 80: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 14 of 44L46194-1809190927

Page 81: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Alkalinity as CaCO3 SM2320B - Titration

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454327

WG454327PBW1 08/17/18 16:24PBW 2.1 -20 20mg/L

WG454327LCSW3 08/17/18 16:41 97LCSW WC180807-3 797 90 110mg/L820.0001

L46194-01DUP 08/17/18 18:04 322DUP 342 6mg/L 20

L46194-11DUP 08/17/18 20:18 1180DUP 1170 1mg/L 20

WG454327LCSW6 08/17/18 20:35 98LCSW WC180807-3 802 90 110mg/L820.0001

WG454327PBW2 08/17/18 20:40PBW U -20 20mg/L

WG454327LCSW9 08/17/18 23:58 96LCSW WC180807-3 787 90 110mg/L820.0001

WG454327PBW3 08/18/18 0:03PBW U -20 20mg/L

WG454327LCSW12 08/18/18 3:18 100LCSW WC180807-3 819 90 110mg/L820.0001

WG454327PBW4 08/18/18 3:23PBW U -20 20mg/L

WG454327LCSW15 08/18/18 6:51 97LCSW WC180807-3 793 90 110mg/L820.0001

Antimony, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 98ICV MS180730-1 .01965 90 110mg/L.02

WG455341ICB 08/31/18 1:42ICB U -0.00088 0.00088mg/L

WG455341LFB 08/31/18 1:45 96LFB MS180806-8 .0096 85 115mg/L.01

L46194-02AS 08/31/18 1:55 U 96AS MS180806-8 .00964 70 130mg/L.01

L46194-02ASD 08/31/18 1:58 U 98ASD MS180806-8 .00982 270 130mg/L 20.01

Arsenic, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 100ICV MS180730-1 .05015 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB U -0.00044 0.00044mg/L

WG455341LFB 08/31/18 1:45 99LFB MS180806-8 .04944 85 115mg/L.0501

L46194-02AS 08/31/18 1:55 .0009 106AS MS180806-8 .05382 70 130mg/L.0501

L46194-02ASD 08/31/18 1:58 .0009 104ASD MS180806-8 .05324 170 130mg/L 20.0501

Barium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 100ICV II180824-2 1.992 95 105mg/L2

WG455169ICB 08/29/18 16:28ICB U -0.009 0.009mg/L

WG455169LFB 08/29/18 16:40 107LFB II180827-2 .5371 85 115mg/L.5025

L46194-01AS 08/29/18 16:49 .031 107AS II180827-2 .5672 85 115mg/L.5025

L46194-01ASD 08/29/18 16:52 .031 106ASD II180827-2 .5617 185 115mg/L 20.5025

Beryllium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 93ICV MS180730-1 .04653 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB .000065 -0.00011 0.00011mg/L

WG455341LFB 08/31/18 1:45 94LFB MS180806-8 .04747 85 115mg/L.05035

L46194-02AS 08/31/18 1:55 U 89AS MS180806-8 .04479 70 130mg/L.05035

L46194-02ASD 08/31/18 1:58 U 90ASD MS180806-8 .04529 170 130mg/L 20.05035

Page 15 of 44L46194-1809190927

Page 82: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Cadmium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 102ICV MS180730-1 .05089 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB U -0.00022 0.00022mg/L

WG455341LFB 08/31/18 1:45 99LFB MS180806-8 .04953 85 115mg/L.05005

L46194-02AS 08/31/18 1:55 U 98AS MS180806-8 .04891 70 130mg/L.05005

L46194-02ASD 08/31/18 1:58 U 98ASD MS180806-8 .04916 170 130mg/L 20.05005

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 98ICV II180824-2 97.88 95 105mg/L100

WG455169ICB 08/29/18 16:28ICB U -0.3 0.3mg/L

WG455169LFB 08/29/18 16:40 100LFB II180827-2 68.46 85 115mg/L68.16145

L46194-01AS 08/29/18 16:49 222 85AS II180827-2 279.7 85 115mg/L68.16145

L46194-01ASD M308/29/18 16:52 222 82ASD II180827-2 278 185 115mg/L 2068.16145

L46335-01AS 08/29/18 17:41 17.9 101AS II180827-2 87.04 85 115mg/L68.16145

L46335-01ASD 08/29/18 17:44 17.9 102ASD II180827-2 87.75 185 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454952

WG454952ICB 08/27/18 8:15ICB U -1.5 1.5mg/L

WG454952ICV 08/27/18 8:15 101ICV WI180530-1 55.53 90 110mg/L54.89

WG454952LFB1 08/27/18 12:43 106LFB WI171229-5 31.98 90 110mg/L30.03

L42792-27DUP RA08/27/18 12:43 UDUP U 0mg/L 20

L42793-27AS 08/27/18 12:43 U 107AS WI171229-5 32.27 90 110mg/L30.03

WG454952LFB2 08/27/18 12:47 107LFB WI171229-5 32.12 90 110mg/L30.03

L46194-05AS 08/27/18 13:00 164 91AS 10XCL 191.3 90 110mg/L30

L46194-04DUP 08/27/18 13:36 930DUP 900 3mg/L 20

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454327

WG454327LCSW2 08/17/18 16:29 102LCSW PCN55810 1440 90 110umhos/cm1410

L46194-01DUP 08/17/18 18:04 1890DUP 1880 1umhos/cm 20

L46194-11DUP 08/17/18 20:18 7140DUP 7290 2umhos/cm 20

WG454327LCSW5 08/17/18 20:23 96LCSW PCN55810 1360 90 110umhos/cm1410

WG454327LCSW8 08/17/18 23:46 96LCSW PCN55810 1350 90 110umhos/cm1410

Cyanide, Total D7511-09

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453859

WG453859ICV 08/13/18 11:43 99ICV WI180809-7 .296 90 110mg/L.3

WG453859ICB 08/13/18 11:45ICB U -0.003 0.003mg/L

WG453859LFB 08/13/18 11:51 99LFB WI180809-4 .099 84 116mg/L.1

L46194-01AS 08/13/18 11:55 U 97AS WI180809-4 .097 84 116mg/L.1

L46194-01ASD 08/13/18 11:57 U 106ASD WI180809-4 .1058 984 116mg/L 20.1

Page 16 of 44L46194-1809190927

Page 83: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Iron, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 96ICV II180824-2 1.911 95 105mg/L2

WG455169ICB 08/29/18 16:28ICB U -0.06 0.06mg/L

WG455169LFB 08/29/18 16:40 107LFB II180827-2 1.068 85 115mg/L1.0018

L46194-01AS 08/29/18 16:49 .05 103AS II180827-2 1.08 85 115mg/L1.0018

L46194-01ASD 08/29/18 16:52 .05 104ASD II180827-2 1.088 185 115mg/L 201.0018

L46335-01AS 08/29/18 17:41 .04 106AS II180827-2 1.103 85 115mg/L1.0018

L46335-01ASD 08/29/18 17:44 .04 106ASD II180827-2 1.105 085 115mg/L 201.0018

Lead, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 102ICV MS180730-1 .05101 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB U -0.00022 0.00022mg/L

WG455341LFB 08/31/18 1:45 98LFB MS180806-8 .04861 85 115mg/L.0496

L46194-02AS 08/31/18 1:55 .0001 103AS MS180806-8 .05104 70 130mg/L.0496

L46194-02ASD 08/31/18 1:58 .0001 101ASD MS180806-8 .05036 170 130mg/L 20.0496

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 99ICV II180824-2 98.94 95 105mg/L100

WG455169ICB 08/29/18 16:28ICB U -0.6 0.6mg/L

WG455169LFB 08/29/18 16:40 95LFB II180827-2 47.84 85 115mg/L50.2933

L46194-01AS 08/29/18 16:49 56.8 90AS II180827-2 102 85 115mg/L50.2933

L46194-01ASD 08/29/18 16:52 56.8 88ASD II180827-2 101.3 185 115mg/L 2050.2933

L46335-01AS 08/29/18 17:41 5.1 96AS II180827-2 53.39 85 115mg/L50.2933

L46335-01ASD 08/29/18 17:44 5.1 97ASD II180827-2 53.88 185 115mg/L 2050.2933

Molybdenum, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 99ICV MS180730-1 .01989 90 110mg/L.02006

WG455341ICB 08/31/18 1:42ICB U -0.0011 0.0011mg/L

WG455341LFB 08/31/18 1:45 93LFB MS180806-8 .04658 85 115mg/L.05015

L46194-02AS 08/31/18 1:55 .0088 97AS MS180806-8 .0573 70 130mg/L.05015

L46194-02ASD 08/31/18 1:58 .0088 98ASD MS180806-8 .05781 170 130mg/L 20.05015

L46323-01AS 08/31/18 2:39 U 93AS MS180806-8 .04642 70 130mg/L.05015

L46323-01ASD 08/31/18 2:42 U 91ASD MS180806-8 .04549 270 130mg/L 20.05015

Page 17 of 44L46194-1809190927

Page 84: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nickel, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 105ICV MS180730-1 .05242 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB U -0.00132 0.00132mg/L

WG455341LFB 08/31/18 1:45 95LFB MS180806-8 .04755 85 115mg/L.0501

L46194-02AS 08/31/18 1:55 .0036 91AS MS180806-8 .0493 70 130mg/L.0501

L46194-02ASD 08/31/18 1:58 .0036 91ASD MS180806-8 .04922 070 130mg/L 20.0501

L46323-01AS 08/31/18 2:39 U 95AS MS180806-8 .04781 70 130mg/L.0501

L46323-01ASD 08/31/18 2:42 U 92ASD MS180806-8 .046 470 130mg/L 20.0501

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455107

WG455107ICV 08/28/18 23:26 98ICV WI180602-1 2.359 90 110mg/L2.416

WG455107ICB 08/28/18 23:27ICB U -0.02 0.02mg/L

WG455109

WG455109LFB1 08/29/18 0:07 97LFB WI180703-7 1.948 90 110mg/L2

L46165-01AS 08/29/18 0:09 U 92AS WI180703-7 1.83 90 110mg/L2

L46165-02DUP 08/29/18 0:12 2.72DUP 2.738 1mg/L 20

WG455109LFB2 08/29/18 0:47 95LFB WI180703-7 1.906 90 110mg/L2

L46194-06AS 08/29/18 1:08 U 95AS WI180703-7 1.908 90 110mg/L2

L46194-07DUP 08/29/18 2:33 5.24DUP 5.158 2mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 99ICV II180824-2 19.76 95 105mg/L20

WG455169ICB 08/29/18 16:28ICB U -0.6 0.6mg/L

WG455169LFB 08/29/18 16:40 100LFB II180827-2 101.1 85 115mg/L101.3833

L46194-01AS 08/29/18 16:49 7.2 101AS II180827-2 109.8 85 115mg/L101.3833

L46194-01ASD 08/29/18 16:52 7.2 100ASD II180827-2 108.8 185 115mg/L 20101.3833

L46335-01AS 08/29/18 17:41 1.2 101AS II180827-2 103.8 85 115mg/L101.3833

L46335-01ASD 08/29/18 17:44 1.2 102ASD II180827-2 105.1 185 115mg/L 20101.3833

Page 18 of 44L46194-1809190927

Page 85: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453799

WG453799PBW 08/10/18 16:19PBW U -20 20mg/L

WG453799LCSW 08/10/18 16:22 95LCSW PCN56037 246 80 120mg/L260

L46194-01DUP 08/10/18 16:56 1490DUP 1490 0mg/L 10

WG453909

WG453909PBW 08/13/18 15:50PBW U -20 20mg/L

WG453909LCSW 08/13/18 15:52 99LCSW PCN56037 258 80 120mg/L260

L46195-05DUP 08/13/18 16:21 13300DUP 13000 2mg/L 10

WG454076

WG454076PBW 08/15/18 10:40PBW 10 -20 20mg/L

WG454076LCSW 08/15/18 10:42 102LCSW PCN56042 266 80 120mg/L260

L46228-02DUP RA08/15/18 11:40 950DUP 800 17mg/L 10

WG454494

WG454494PBW 08/21/18 10:05PBW U -20 20mg/L

WG454494LCSW 08/21/18 10:07 95LCSW PCN56357 248 80 120mg/L260

L46347-02DUP 08/21/18 10:36 244DUP 246 1mg/L 10

Selenium, dissolved SM 3114 B, AA-Hydride

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454156

WG454156ICV 08/16/18 13:15 105ICV SE180801-2 .0263 90 110mg/L.025025

WG454156ICB 08/16/18 13:17ICB U -0.003 0.003mg/L

WG454156LRB 08/16/18 13:19LRB U -0.003 0.003mg/L

WG454156LFB 08/16/18 13:21 105LFB SE180709-4 .0234 85 115mg/L.02224

L46050-01LFM M208/16/18 13:25 .0919 7LFM SE5XPREP .1 85 115mg/L.1112

L46050-01LFMD M208/16/18 13:27 .0919 7LFMD SE5XPREP .0998 085 115mg/L 20.1112

L46194-10LFM 08/16/18 13:53 .007 99LFM SE180709-4 .029 85 115mg/L.02224

L46194-10LFMD 08/16/18 13:56 .007 98LFMD SE180709-4 .0288 185 115mg/L 20.02224

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455169

WG455169ICV 08/29/18 16:22 99ICV II180824-2 98.56 95 105mg/L100

WG455169ICB 08/29/18 16:28ICB U -0.6 0.6mg/L

WG455169LFB 08/29/18 16:40 100LFB II180827-2 100.9 85 115mg/L100.8796

L46194-01AS 08/29/18 16:49 164 94AS II180827-2 258.6 85 115mg/L100.8796

L46194-01ASD 08/29/18 16:52 164 91ASD II180827-2 256.1 185 115mg/L 20100.8796

L46335-01AS 08/29/18 17:41 8.3 102AS II180827-2 111 85 115mg/L100.8796

L46335-01ASD 08/29/18 17:44 8.3 103ASD II180827-2 112.2 185 115mg/L 20100.8796

Page 19 of 44L46194-1809190927

Page 86: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455303

WG455303ICB 08/30/18 8:13ICB U -3 3mg/L

WG455303ICV 08/30/18 8:13 93ICV WI180827-2 18.6 90 110mg/L20

L41361-40DUP 08/30/18 13:16 155DUP 150 3mg/L 20

L41361-41AS M308/30/18 13:16 132 240AS SO4TURB5X 156 90 110mg/L10

WG455303LFB 08/30/18 13:19 95LFB WI180726-1 9.5 90 110mg/L10

L46323-01DUP 08/30/18 13:39 64.1DUP 64.8 1mg/L 20

L46323-02AS M308/30/18 13:39 106 140AS SO4TURB5X 120 90 110mg/L10

Uranium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455341

WG455341ICV 08/31/18 1:39 105ICV MS180730-1 .05266 90 110mg/L.05

WG455341ICB 08/31/18 1:42ICB U -0.00022 0.00022mg/L

WG455341LFB 08/31/18 1:45 102LFB MS180806-8 .05118 85 115mg/L.05

L46194-02AS 08/31/18 1:55 .0008 112AS MS180806-8 .05679 70 130mg/L.05

L46194-02ASD 08/31/18 1:58 .0008 112ASD MS180806-8 .05668 070 130mg/L 20.05

L46323-01AS 08/31/18 2:39 .0001 102AS MS180806-8 .05086 70 130mg/L.05

L46323-01ASD 08/31/18 2:42 .0001 98ASD MS180806-8 .04905 470 130mg/L 20.05

Page 20 of 44L46194-1809190927

Page 87: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46194Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551691L46194-01

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG454952

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551692L46194-02

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM4500Cl-EChlorideWG454952

HC Initial analysis within holding time. Reanalysis was past holding time, which was required due to a QC failure during the initial analysis.

SM2540CResidue, Filterable (TDS) @180CWG454076

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540C

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551693L46194-03

Q3 Sample received with improper or inadequate chemical preservation.

D7511-09Cyanide, TotalWG453859

HC Initial analysis within holding time. Reanalysis was past holding time, which was required due to a QC failure during the initial analysis.

SM2540CResidue, Filterable (TDS) @180CWG454076

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540C

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551694L46194-04

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

REPAD.15.06.05.01

Page 21 of 44L46194-1809190927

Page 88: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46194Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551695L46194-05

HC Initial analysis within holding time. Reanalysis was past holding time, which was required due to a QC failure during the initial analysis.

SM2540CResidue, Filterable (TDS) @180CWG454076

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540C

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551696L46194-06

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG454327

HC Initial analysis within holding time. Reanalysis was past holding time, which was required due to a QC failure during the initial analysis.

SM2540CResidue, Filterable (TDS) @180CWG454076

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540C

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - TitrationTotal AlkalinityWG454327

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551697L46194-07

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG454327

HC Initial analysis within holding time. Reanalysis was past holding time, which was required due to a QC failure during the initial analysis.

SM2540CResidue, Filterable (TDS) @180CWG454494

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - TitrationTotal AlkalinityWG454327

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551698L46194-08

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM 3114 B, AA-HydrideSelenium, dissolvedWG454156

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

REPAD.15.06.05.01

Page 22 of 44L46194-1809190927

Page 89: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46194Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4551699L46194-09

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG45530310L46194-10

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2510BConductivity @25CWG45432711L46194-11

Q3 Sample received with improper or inadequate chemical preservation.

D7511-09Cyanide, TotalWG453859

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

SM2540CResidue, Filterable (TDS) @180CWG454076

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455303

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - TitrationTotal AlkalinityWG454327

REPAD.15.06.05.01

Page 23 of 44L46194-1809190927

Page 90: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-01

Sample ID: 32-45 KD-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/06/18 16:21

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 110 pCi/L calc09/18/18 11:06

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 150 20 14 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 2.1 1.3 2.3 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 1.1 0.17 0.13 pCi/L amk08/22/18 0:08

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.6 0.77 0.73 pCi/L jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.05 0.39 0.71 pCi/L * jlg/djc08/23/18 0:02

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 24 of 44L46194-1809190927

Page 91: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-02

Sample ID: 31-01 TRA-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/06/18 15:17

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 0.06 pCi/L calc09/18/18 11:06

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 0.6 3.4 17 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 1.2 1.3 2.4 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.33 0.12 0.23 pCi/L amk08/22/18 0:10

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.6 0.8 0.81 pCi/L jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.07 0.31 0.63 pCi/L * jlg/djc08/23/18 0:04

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 25 of 44L46194-1809190927

Page 92: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-03

Sample ID: 31-02 TRB-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/06/18 14:20

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 6.3 pCi/L calc09/18/18 11:06

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 8.8 24 87 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 2.5 1.4 2.7 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 3.7 0.26 0.19 pCi/L * amk08/22/18 0:11

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 11 1.2 0.75 pCi/L * jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.0 0.22 0.71 pCi/L * jlg/djc08/23/18 0:05

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 26 of 44L46194-1809190927

Page 93: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-04

Sample ID: 36-06 KD

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/06/18 12:00

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected -90 pCi/L calc09/18/18 11:06

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 220 48 65 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 6.2 2.7 4.8 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 11 0.47 0.11 pCi/L amk08/22/18 0:12

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 7.1 0.98 0.72 pCi/L jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 21 1.6 0.85 pCi/L * jlg/djc08/23/18 0:07

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 27 of 44L46194-1809190927

Page 94: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-05

Sample ID: 5-08 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/07/18 9:52

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 2.5 8.2 34 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 2.2 1.6 3.1 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.27 0.08 0.2 pCi/L amk08/22/18 0:14

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2.7 1.6 1.5 pCi/L * jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved 0.17 0.47 1.4 pCi/L * jlg/djc08/23/18 0:08

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 28 of 44L46194-1809190927

Page 95: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-06

Sample ID: 5-04 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/07/18 11:04

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 1.9 13 63 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 2.2 2 3.7 pCi/L * jlg09/17/18 13:43

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.53 0.1 0.11 pCi/L amk08/22/18 0:15

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved -0.13 0.84 0.89 pCi/L jlg09/05/18 16:50

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.08 0.25 1.1 pCi/L * jlg/djc08/23/18 0:10

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 29 of 44L46194-1809190927

Page 96: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-07

Sample ID: 5-73 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/07/18 15:22

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 710 100 170 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 3 4.1 8 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.26 0.1 0.26 pCi/L * amk08/22/18 0:17

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 2 2.5 2.6 pCi/L * jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.76 1.5 3.4 pCi/L * jlg/djc08/23/18 0:11

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 30 of 44L46194-1809190927

Page 97: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-08

Sample ID: 5-03 ALL-R

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/07/18 17:01

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 42 22 42 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 1 1.5 2.9 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.36 0.08 0.2 pCi/L amk08/22/18 0:18

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved -0.14 0.8 0.84 pCi/L jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.35 0.31 0.91 pCi/L * jlg/djc08/23/18 0:12

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 31 of 44L46194-1809190927

Page 98: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-09

Sample ID: 32-59 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/08/18 8:46

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 84 26 50 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 0.48 1.8 3.6 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.13 0.08 0.13 pCi/L amk08/22/18 0:20

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.31 1.5 1.6 pCi/L * jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.22 0.24 1.4 pCi/L * jlg/djc08/23/18 0:14

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 32 of 44L46194-1809190927

Page 99: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-10

Sample ID: 31-61 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/08/18 15:56

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 190 89 180 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 0.51 4.7 9.3 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.39 0.1 0.07 pCi/L * amk08/22/18 0:21

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.9 0.89 0.84 pCi/L * jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.19 0.21 0.79 pCi/L * jlg/djc08/23/18 0:15

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 33 of 44L46194-1809190927

Page 100: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46194-11

Sample ID: 36-02 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/08/18 9:18

Date Received: 08/10/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected -25 pCi/L calc09/18/18 11:06

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved -23 23 170 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 7.1 7.7 15 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.72 0.13 0.07 pCi/L * amk08/22/18 0:23

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.2 0.85 0.83 pCi/L * jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.24 0.19 0.85 pCi/L * jlg/djc08/23/18 0:17

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 34 of 44L46194-1809190927

Page 101: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP003.09.12.01

Radiochemistry

Reference

Page 35 of 44L46194-1809190927

Page 102: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Gross Alpha, dissolved M9310

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG454470

L46173-01DUP 08/20/18 38DUP-RER 49 27.7 1.086.7 137.6

WG453910LCSWA 08/20/18 88LCSW PCN55778 88100 67 1447.8 1.3

WG453910PBW 08/20/18PBW .24 1.70.66 0.85

L46080-01DUP 08/20/18 0.73DUP-RER -.57 21.1 0.671.6 22

L46080-01MSA M208/20/18 0.73 55MS PCN55778 4275.19 67 1446.71.6 22

Lead 210, dissolved EICHROM, OTW01

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG456032

WG455293LCSW 09/17/18 90LCSW PCN54282 8796.72 55 1213.2 2.3

WG455293PBW 09/17/18PBW 1.8 4.81.3 2.4

L46194-03DUP 09/17/18 2.5DUP-RER 3 21.4 0.251.4 2.62.7

L46201-01DUP 09/17/18 2DUP-RER 1.1 21.3 0.491.3 2.52.4

L46301-01MS 09/17/18 2.5 97MS PCN54282 9696.72 55 1214.11.5 3.12.8

Radium 226, dissolved M903.1

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG454661

WG453970PBW 08/22/18PBW .07 0.10.06 0.05

WG453970LCSW 08/22/18 110LCSW PCN54813 2220 43 1480.6 0.05

L46194-01DUP 08/22/18 1.1DUP-RER 1.1 20.15 00.17 0.060.13

L46194-10DUP 08/22/18 0.39DUP-RER .26 20.1 0.920.1 0.060.07

L45931-01MS 08/22/18 0.11 119MS PCN54813 2420 43 1480.620.07 0.10.09

Page 36 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L46194Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Radium 228, dissolved M9320

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG455769

WG455209LCSW 09/05/18 97LCSW PCN57186 9.69.95 47 1231.2 0.83

WG455209PBW 09/05/18PBW -.08 0.860.41 0.43

L46194-08DUP 09/05/18 -0.14DUP-RER .91 21.7 0.560.8 1.70.84

L46194-11MS 09/05/18 1.2 112MS PCN57186 2924.86 47 1233.10.85 2.10.83

L46488-01DUP 09/05/18 0.24DUP-RER .8 20.84 0.450.91 0.840.95

Thorium 230, dissolved ESM 4506

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG455123

WG454386PBW 08/23/18PBW -.12 1.320.18 0.66

WG454386LCSW 08/23/18 105LCSW PCN56774 210200 91 1264.7 0.64

L46194-02DUP 08/23/18 0.07DUP-RER -.05 20.37 0.250.31 0.680.63

L46196-01DUP 08/23/18 0.29DUP-RER -.13 20.31 1.070.24 0.70.72

L46194-06MS 08/23/18 -0.08 110MS PCN56774 220200 91 1265.20.25 0.841.1

Page 37 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L46194Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544701L46194-01

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544702L46194-02

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544703L46194-03

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9310

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

EICHROM, OTW01Lead 210, dissolvedWG456032

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M903.1Radium 226, dissolvedWG454661

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9320Radium 228, dissolvedWG455769

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544704L46194-04

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544705L46194-05

DJ Sample dilution required due to insufficient sample.M9320Radium 228, dissolvedWG455769

DJ Sample dilution required due to insufficient sample.ESM 4506Thorium 230, dissolvedWG455123

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544706L46194-06

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544707L46194-07

DJ Sample dilution required due to insufficient sample.EICHROM, OTW01Lead 210, dissolvedWG456032

DJ Sample dilution required due to insufficient sample.M903.1Radium 226, dissolvedWG454661

DJ Sample dilution required due to insufficient sample.M9320Radium 228, dissolvedWG455769

DJ Sample dilution required due to insufficient sample.ESM 4506Thorium 230, dissolvedWG455123

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544708L46194-08

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544709L46194-09

DJ Sample dilution required due to insufficient sample.EICHROM, OTW01Lead 210, dissolvedWG456032

DJ Sample dilution required due to insufficient sample.M9320Radium 228, dissolvedWG455769

DJ Sample dilution required due to insufficient sample.ESM 4506Thorium 230, dissolvedWG455123

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG45447010L46194-10

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9310

DJ Sample dilution required due to insufficient sample.EICHROM, OTW01Lead 210, dissolvedWG456032

N1 See Case Narrative.EICHROM, OTW01

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

EICHROM, OTW01

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M903.1Radium 226, dissolvedWG454661

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9320Radium 228, dissolvedWG455769

REPAD.15.06.05.01

Page 38 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L46194Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG45447011L46194-11

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9310

N1 See Case Narrative.EICHROM, OTW01Lead 210, dissolvedWG456032

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

EICHROM, OTW01

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M903.1Radium 226, dissolvedWG454661

Q5 Sample received with inadequate chemical preservation. Additional preservation performed by the laboratory.

M9320Radium 228, dissolvedWG455769

REPAD.15.06.05.01

Page 39 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46194Rio Algom Mining Company

Radiochemistry

The following parameters are not offered for certification or are not covered by NELAC certificate #ACZ.

Lead 210, dissolved EICHROM, OTW01

Thorium 230, dissolved ESM 4506

REPAD.05.06.05.01

Page 40 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/10/2018 10:54

L46194

Date Printed: 8/13/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

L46194-03 Container B2022399 (GREEN CUBE): Added 10 mls nitric acid to the sub-sample to adjust the pH to the appropriate range.

L46194-03 Container B2022399 (GREEN CUBE): Added 10 mls nitric acid to the sub-sample to adjust the pH to the appropriate range.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------4089 13.5 NA 15 N/A4189 15.7 NA 15 N/A4491 2.4 <=6.0 15 N/A

X

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 41 of 44L46194-1809190927

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/10/2018 10:54

L46194

Date Printed: 8/13/2018

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

4656 1.7 <=6.0 15 N/A

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 42 of 44L46194-1809190927

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Page 43 of 44L46194-1809190927

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Page 44 of 44L46194-1809190927

Page 111: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46425

Kent Applegate

September 06, 2018

Project ID: 4506946843

Report to:

cc: Clark Short, Angela Persico

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 22, 2018. This project has been assigned to ACZ's project number, L46425. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46425. 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 October 06, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 10L46425-1809061131

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ACZ Sample ID: L46425-01

Sample ID: 5-02

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/17/18 09:48

Date Received: 08/22/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 148 mg/L 3 dcm0.5 08/31/18 14:515

Magnesium, dissolved M200.7 ICP 485 mg/L 5 dcm1 08/31/18 14:515

Potassium, dissolved M200.7 ICP 9 mg/L 5 dcm1 08/31/18 14:515

Sodium, dissolved M200.7 ICP 726 mg/L 5 dcm1 08/31/18 14:515

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Chloride SM4500Cl-E 1140 mg/L 40 mss210* 09/04/18 12:5020

Conductivity @25C SM2510B 6650 umhos/cm 10 enb1* 08/31/18 1:271

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.14 mg/L 0.1 pjb0.02* 08/30/18 23:481

Residue, Filterable (TDS) @180C

SM2540C 4560 mg/L 40H oah20* 08/28/18 15:502

Sulfate D516-02/-07 - Turbidimetric 1560 mg/L 250 wtc50* 09/01/18 13:0350

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 10L46425-1809061131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 3 of 10L46425-1809061131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46425Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455329

WG455329ICV 08/31/18 12:58 100ICV II180824-2 100.03 95 105mg/L100

WG455329ICB 08/31/18 13:05ICB U -0.3 0.3mg/L

WG455329LFB 08/31/18 13:18 102LFB II180827-2 69.55 85 115mg/L68.16145

L46421-01AS 08/31/18 14:38 8.8 103AS II180827-2 78.8 85 115mg/L68.16145

L46421-01ASD 08/31/18 14:41 8.8 101ASD II180827-2 77.84 185 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455531

WG455531ICB 09/04/18 9:16ICB U -1.5 1.5mg/L

WG455531ICV 09/04/18 9:16 102ICV WI180530-1 55.95 90 110mg/L54.89

WG455531LFB1 09/04/18 12:13 109LFB WI171229-5 32.74 90 110mg/L30.03

L46484-01DUP 09/04/18 12:17 37.7DUP 37.54 0mg/L 20

L46484-02AS 09/04/18 12:23 20.1 95AS WI171229-5 48.53 90 110mg/L30.03

WG455531LFB2 09/04/18 12:49 106LFB WI171229-5 31.95 90 110mg/L30.03

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455257

WG455257LCSW2 08/30/18 14:12 99LCSW PCN56415 1400 90 110umhos/cm1410

WG455257LCSW5 08/30/18 16:46 99LCSW PCN56415 1390 90 110umhos/cm1410

WG455257LCSW8 08/30/18 20:23 99LCSW PCN56415 1390 90 110umhos/cm1410

WG455257LCSW11 08/31/18 0:09 98LCSW PCN56415 1380 90 110umhos/cm1410

L46435-01DUP 08/31/18 1:45 264DUP 256 3umhos/cm 20

WG455257LCSW14 08/31/18 3:21 97LCSW PCN56415 1370 90 110umhos/cm1410

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455329

WG455329ICV 08/31/18 12:58 101ICV II180824-2 101 95 105mg/L100

WG455329ICB 08/31/18 13:05ICB U -0.6 0.6mg/L

WG455329LFB 08/31/18 13:18 96LFB II180827-2 48.26 85 115mg/L50.2933

L46421-01AS 08/31/18 14:38 3.4 97AS II180827-2 52 85 115mg/L50.2933

L46421-01ASD 08/31/18 14:41 3.4 96ASD II180827-2 51.45 185 115mg/L 2050.2933

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455347

WG455347ICV 08/30/18 21:22 98ICV WI180602-1 2.373 90 110mg/L2.416

WG455347ICB 08/30/18 21:23ICB U -0.02 0.02mg/L

WG455351

WG455351LFB 08/30/18 23:09 98LFB WI180703-7 1.951 90 110mg/L2

L46400-02AS 08/30/18 23:31 12.5 98AS WI180703-7 32.16 90 110mg/L20

L46401-01DUP 08/30/18 23:33 8.8DUP 8.78 0mg/L 20

Page 4 of 10L46425-1809061131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46425Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455329

WG455329ICV 08/31/18 12:58 101ICV II180824-2 20.18 95 105mg/L20

WG455329ICB 08/31/18 13:05ICB U -0.6 0.6mg/L

WG455329LFB 08/31/18 13:18 100LFB II180827-2 101.8 85 115mg/L101.3833

L46421-01AS 08/31/18 14:38 10.2 101AS II180827-2 112.9 85 115mg/L101.3833

L46421-01ASD 08/31/18 14:41 10.2 100ASD II180827-2 111.8 185 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455091

WG455091PBW 08/28/18 15:45PBW U -20 20mg/L

WG455091LCSW 08/28/18 15:47 93LCSW PCN56355 242 80 120mg/L260

L46561-01DUP 08/28/18 16:16 2870DUP 2880 0mg/L 10

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455329

WG455329ICV 08/31/18 12:58 101ICV II180824-2 100.85 95 105mg/L100

WG455329ICB 08/31/18 13:05ICB U -0.6 0.6mg/L

WG455329LFB 08/31/18 13:18 101LFB II180827-2 101.9 85 115mg/L100.8796

L46421-01AS 08/31/18 14:38 236 91AS II180827-2 328.2 85 115mg/L100.8796

L46421-01ASD 08/31/18 14:41 236 87ASD II180827-2 323.6 185 115mg/L 20100.8796

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455458

WG455458ICB 09/01/18 11:01ICB U -3 3mg/L

WG455458ICV 09/01/18 11:01 99ICV WI180827-2 19.8 90 110mg/L20

WG455458LFB 09/01/18 12:32 95LFB WI180726-1 9.5 90 110mg/L10

L46452-03DUP 09/01/18 13:01 737DUP 728 1mg/L 20

L46452-02AS M309/01/18 13:10 1470 200AS SO4TURB50X 1490 90 110mg/L10

Page 5 of 10L46425-1809061131

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46425Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

Q6 Sample was received above recommended temperature.SM4500Cl-EChlorideWG4555311L46425-01

Q6 Sample was received above recommended temperature.SM2510BConductivity @25CWG455257

Q6 Sample was received above recommended temperature.M353.2 - H2SO4 preservedNitrate/Nitrite as NWG455351

H2 Initial analysis within holding time. Reanalysis for the required dilution was past holding time.

SM2540CResidue, Filterable (TDS) @180CWG455091

HE Analysis performed past holding time. Method holding time is less than or equal to 7 days and sample was received with less than half of the holding time remaining (refer to item C5 of ACZ's Terms & Conditions).

SM2540C

Q6 Sample was received above recommended temperature.SM2540C

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455458

Q6 Sample was received above recommended temperature.D516-02/-07 - Turbidimetric

REPAD.15.06.05.01

Page 6 of 10L46425-1809061131

Page 117: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46425Rio Algom Mining Company

No certification qualifiers associated with this analysis

REPAD.05.06.05.01

Page 7 of 10L46425-1809061131

Page 118: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/22/2018 11:02

L46425

Date Printed: 8/23/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

5229 3.1 <=6.0 14 Yes

X

Was ice present in the shipment container(s)?

No - Wet or gel ice was not present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

Page 8 of 10L46425-1809061131

Page 119: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/22/2018 11:02

L46425

Date Printed: 8/23/2018

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and

HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

Page 9 of 10L46425-1809061131

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Page 10 of 10L46425-1809061131

Page 121: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Analytical

Report

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

ACZ Project ID: L46201

Kent Applegate

September 24, 2018

Project ID: 4506946843

Report to:

cc: Michaella Gorospe, Clark Short

Kent Applegate:

Enclosed are the analytical results for sample(s) submitted to ACZ Laboratories, Inc. (ACZ) on August 11, 2018. This project has been assigned to ACZ's project number, L46201. Please reference this number in all future inquiries.

All analyses were performed according to ACZ's Quality Assurance Plan. The enclosed results relate only to the samples received under L46201. 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 October 24, 2018. If the samples are determined to be hazardous, additional charges apply for disposal (typically $11/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 raw data reports for ten years.

If you have any questions or other needs, please contact your Project Manager.

Rio Algom Mining Company

P.O. Box 218

Grants, NM 87020

Accounts Payable

Bill to:

Page 1 of 22L46201-1809240933

Page 122: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46201-01

Sample ID: 33-01 TRA

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/09/18 15:25

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 160 mg/L 1 dcm0.2* 08/27/18 11:482

Iron, dissolved M200.7 ICP mg/L 0.1U dcm0.04 08/27/18 11:482

Magnesium, dissolved M200.7 ICP 51.7 mg/L 2 dcm0.4 08/27/18 11:482

Molybdenum, dissolved M200.8 ICP-MS 0.003 mg/L 0.005B bsu0.001 08/28/18 19:192

Nickel, dissolved M200.8 ICP-MS 0.001 mg/L 0.006B bsu0.001 08/28/18 19:192

Potassium, dissolved M200.7 ICP 5.2 mg/L 2 dcm0.4 08/27/18 11:482

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U che0.001 08/16/18 14:001

Sodium, dissolved M200.7 ICP 535 mg/L 2 dcm0.4 08/27/18 11:482

Uranium, dissolved M200.8 ICP-MS 0.0006 mg/L 0.001B bsu0.0002 08/28/18 19:192

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

81.3 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 81.3 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -10.0 % calc09/24/18 0:00

Sum of Anions 44.0 meq/L calc09/24/18 0:00

Sum of Cations 36 meq/L calc09/24/18 0:00

Chloride SM4500Cl-E 34.5 mg/L 2 wtc0.5* 08/23/18 12:211

Conductivity @25C SM2510B 2690 umhos/cm 10 emk1 08/17/18 23:121

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003 08/13/18 12:191

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 08/22/18 23:521

Residue, Filterable (TDS) @180C

SM2540C 2690 mg/L 20 oah10 08/13/18 11:351

Sulfate D516-02/-07 - Turbidimetric 1970 mg/L 250 mss250* 08/29/18 14:1650

TDS (calculated) Calculation 2810 mg/L calc09/24/18 0:00

TDS (ratio - measured/calculated)

Calculation 0.96 calc09/24/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 2 of 22L46201-1809240933

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ACZ Sample ID: L46201-02

Sample ID: 31-67 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 10:24

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 664 mg/L 3 dcm0.5* 08/27/18 11:525

Iron, dissolved M200.7 ICP 2.2 mg/L 0.3 dcm0.1 08/27/18 11:525

Magnesium, dissolved M200.7 ICP 620 mg/L 5 dcm1 08/27/18 11:525

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.01U bsu0.003 08/28/18 19:255

Nickel, dissolved M200.8 ICP-MS 0.007 mg/L 0.02B bsu0.003 08/28/18 19:255

Potassium, dissolved M200.7 ICP 14 mg/L 5 dcm1 08/27/18 11:525

Selenium, dissolved SM 3114 B, AA-Hydride mg/L 0.005U che0.001 08/16/18 14:021

Sodium, dissolved M200.7 ICP 582 mg/L 5 dcm1 08/27/18 11:525

Uranium, dissolved M200.8 ICP-MS 0.0122 mg/L 0.003 bsu0.0005 08/28/18 19:255

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

813 mg/L 20 emk2 08/17/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/17/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/17/18 0:001

Total Alkalinity 813 mg/L 20 emk2 08/17/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -3.5 % calc09/24/18 0:00

Sum of Anions 118 meq/L calc09/24/18 0:00

Sum of Cations 110 meq/L calc09/24/18 0:00

Chloride SM4500Cl-E 1220 mg/L 80 wtc20* 08/23/18 13:2840

Conductivity @25C SM2510B 5580 umhos/cm 10 emk1 08/17/18 23:271

Cyanide, Total D7511-09 mg/L 0.01U rbt0.003* 08/13/18 12:211

Nitrate/Nitrite as N M353.2 - H2SO4 preserved mg/L 0.1U pjb0.02* 08/22/18 23:541

Residue, Filterable (TDS) @180C

SM2540C 7330 mg/L 40 oah20 08/13/18 11:382

Sulfate D516-02/-07 - Turbidimetric 3210 mg/L 600 mss2120* 08/29/18 14:18120

TDS (calculated) Calculation 6810 mg/L calc09/24/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.08 calc09/24/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 3 of 22L46201-1809240933

Page 124: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46201-03

Sample ID: 31-65 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Analytical

Results

Date Sampled: 08/10/18 12:13

Date Received: 08/11/18

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Metals Analysis

XQDilution

Calcium, dissolved M200.7 ICP 577 mg/L 5 dcm1* 08/27/18 11:5510

Iron, dissolved M200.7 ICP 148 mg/L 0.5 dcm0.2 08/27/18 11:5510

Magnesium, dissolved M200.7 ICP 1460 mg/L 10 dcm2 08/27/18 11:5510

Molybdenum, dissolved M200.8 ICP-MS mg/L 0.03U bsu0.005 08/28/18 19:2610

Nickel, dissolved M200.8 ICP-MS 0.123 mg/L 0.03 bsu0.006 08/28/18 19:2610

Potassium, dissolved M200.7 ICP 44 mg/L 10 dcm2 08/27/18 11:5510

Selenium, dissolved SM 3114 B, AA-Hydride 0.0041 mg/L 0.005B che0.001 08/16/18 14:081

Sodium, dissolved M200.7 ICP 1710 mg/L 10 dcm2 08/27/18 11:5510

Uranium, dissolved M200.8 ICP-MS 0.077 mg/L 0.005 bsu0.001 08/28/18 19:2610

Parameter EPA Method Result Units MDLQual AnalystDatePQL

Wet Chemistry

XQDilution

Alkalinity as CaCO3 SM2320B - Titration

Bicarbonate as CaCO3

1520 mg/L 20 emk2 08/18/18 0:001

Carbonate as CaCO3 mg/L 20U emk2 08/18/18 0:001

Hydroxide as CaCO3 mg/L 20U emk2 08/18/18 0:001

Total Alkalinity 1520 mg/L 20 emk2* 08/18/18 0:001

Cation-Anion Balance Calculation

Cation-Anion Balance -1.3 % calc09/24/18 0:00

Sum of Anions 239 meq/L calc09/24/18 0:00

Sum of Cations 233 meq/L calc09/24/18 0:00

Chloride SM4500Cl-E 1980 mg/L 80 wtc20* 08/23/18 13:0840

Conductivity @25C SM2510B 11600 umhos/cm 10 enb1 08/21/18 0:251

Nitrate/Nitrite as N M353.2 - H2SO4 preserved 0.24 mg/L 0.1 pjb0.02* 08/23/18 0:241

Residue, Filterable (TDS) @180C

SM2540C 15500 mg/L 100 oah50 08/13/18 11:415

Sulfate D516-02/-07 - Turbidimetric 7300 mg/L 5000 mss21000* 08/29/18 14:111000

TDS (calculated) Calculation 14100 mg/L calc09/24/18 0:00

TDS (ratio - measured/calculated)

Calculation 1.10 calc09/24/18 0:00

REPIN.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 4 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

Lower Lower Recovery Limit, in % (except for LCSS, mg/Kg)

MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL (see comment #5).

Allows for instrument and annual fluctuations.

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit. Synonymous with the EPA term "minimum level".

QC True Value of the Control Sample or the amount added to the Spike

Rec Recovered amount of the true value or spike added, in % (except for LCSS, mg/Kg)

RPD Relative Percent Difference, calculation used for Duplicate QC Types

Upper Upper Recovery Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

AS Analytical Spike (Post Digestion) LCSWD Laboratory Control Sample - Water Duplicate

ASD Analytical Spike (Post Digestion) Duplicate LFB Laboratory Fortified Blank

CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix

CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate

DUP Sample Duplicate LRB Laboratory Reagent Blank

ICB Initial Calibration Blank MS Matrix Spike

ICV Initial Calibration Verification standard MSD Matrix Spike Duplicate

ICSAB Inter-element Correction Standard - A plus B solutions PBS Prep Blank - Soil

LCSS Laboratory Control Sample - Soil PBW Prep Blank - Water

LCSSD Laboratory Control Sample - Soil Duplicate PQV Practical Quantitation Verification standard

LCSW Laboratory Control Sample - Water SDL Serial Dilution

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Spikes/Fortified Matrix Determines sample matrix interferences, if any.

Standard Verifies the validity of the calibration.

ACZ Qualifiers (Qual)

B Analyte concentration detected at a value between MDL and PQL. The associated value is an estimated quantity.

H Analysis exceeded method hold time. pH is a field test with an immediate hold time.

L Target analyte response was below the laboratory defined negative threshold.

U 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.

Method References

(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes, March 1983.

(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples, August 1993.

(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples - Supplement I, May 1994.

(4) EPA SW-846. Test Methods for Evaluating Solid Waste.

(5) Standard Methods for the Examination of Water and Wastewater.

Comments

(1) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(2) Soil, Sludge, and Plant matrices for Inorganic analyses are reported on a dry weight basis.

(3) Animal matrices for Inorganic analyses are reported on an "as received" basis.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification qualifier

associated with the result.

(5) If the MDL equals the PQL or the MDL column is omitted, the PQL is the reporting limit.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP001.03.15.02

Inorganic

Reference

Page 5 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Alkalinity as CaCO3 SM2320B - Titration

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454327

WG454327PBW1 08/17/18 16:24PBW 2.1 -20 20mg/L

WG454327LCSW3 08/17/18 16:41 97LCSW WC180807-3 797 90 110mg/L820.0001

WG454327LCSW6 08/17/18 20:35 98LCSW WC180807-3 802 90 110mg/L820.0001

WG454327PBW2 08/17/18 20:40PBW U -20 20mg/L

L46201-02DUP 08/17/18 23:41 813DUP 873 7mg/L 20

WG454327LCSW9 08/17/18 23:58 96LCSW WC180807-3 787 90 110mg/L820.0001

WG454327PBW3 08/18/18 0:03PBW U -20 20mg/L

L46203-05DUP 08/18/18 1:33 385DUP 394 2mg/L 20

WG454327LCSW12 08/18/18 3:18 100LCSW WC180807-3 819 90 110mg/L820.0001

WG454327PBW4 08/18/18 3:23PBW U -20 20mg/L

WG454327LCSW15 08/18/18 6:51 97LCSW WC180807-3 793 90 110mg/L820.0001

Calcium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 98ICV II180727-1 98.4 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.3 0.3mg/L

WG454778LFB 08/27/18 10:47 98LFB II180809-4 66.99 85 115mg/L68.16145

L46228-01AS M308/27/18 12:08 217 80AS II180809-4 271.5 85 115mg/L68.16145

L46228-01ASD M308/27/18 12:11 217 81ASD II180809-4 272.2 085 115mg/L 2068.16145

Chloride SM4500Cl-E

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454610

WG454610ICB 08/23/18 12:08ICB U -1.5 1.5mg/L

WG454610ICV 08/23/18 12:08 107ICV WI180530-1 58.84 90 110mg/L54.89

L46197-01DUP 08/23/18 12:21 26.5DUP 26.04 2mg/L 20

L46197-02AS M108/23/18 12:21 14.9 113AS WI171229-5 48.9 90 110mg/L30.03

WG454610LFB1 08/23/18 13:06 104LFB WI171229-5 31.25 90 110mg/L30.03

WG454610LFB2 08/23/18 13:06 104LFB WI171229-5 31.2 90 110mg/L30.03

Conductivity @25C SM2510B

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454327

WG454327LCSW2 08/17/18 16:29 102LCSW PCN55810 1440 90 110umhos/cm1410

WG454327LCSW5 08/17/18 20:23 96LCSW PCN55810 1360 90 110umhos/cm1410

L46201-02DUP 08/17/18 23:41 5580DUP 5600 0umhos/cm 20

WG454327LCSW8 08/17/18 23:46 96LCSW PCN55810 1350 90 110umhos/cm1410

WG454440

WG454440LCSW2 08/20/18 17:15 110LCSW PCN55810 1550 90 110umhos/cm1410

WG454440LCSW5 08/20/18 19:50 109LCSW PCN55810 1530 90 110umhos/cm1410

WG454440LCSW8 08/20/18 22:13 107LCSW PCN55810 1510 90 110umhos/cm1410

L46202-03DUP 08/21/18 0:46 11900DUP 11700 2umhos/cm 20

WG454440LCSW11 08/21/18 0:51 91LCSW PCN55810 1280 90 110umhos/cm1410

Page 6 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Cyanide, Total D7511-09

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453859

WG453859ICV 08/13/18 11:43 99ICV WI180809-7 .296 90 110mg/L.3

WG453859ICB 08/13/18 11:45ICB U -0.003 0.003mg/L

WG453859LFB 08/13/18 11:51 99LFB WI180809-4 .099 84 116mg/L.1

L46194-01AS 08/13/18 11:55 U 97AS WI180809-4 .097 84 116mg/L.1

L46194-01ASD 08/13/18 11:57 U 106ASD WI180809-4 .1058 984 116mg/L 20.1

Iron, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 95ICV II180727-1 1.895 95 105mg/L2

WG454778ICB 08/27/18 10:34ICB U -0.06 0.06mg/L

WG454778LFB 08/27/18 10:47 102LFB II180809-4 1.02 85 115mg/L1.0018

L46228-01AS 08/27/18 12:08 U 100AS II180809-4 .997 85 115mg/L1.0018

L46228-01ASD 08/27/18 12:11 U 99ASD II180809-4 .994 085 115mg/L 201.0018

Magnesium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 99ICV II180727-1 99.43 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 92LFB II180809-4 46.39 85 115mg/L50.2933

L46228-01AS 08/27/18 12:08 27.9 88AS II180809-4 72.31 85 115mg/L50.2933

L46228-01ASD 08/27/18 12:11 27.9 89ASD II180809-4 72.41 085 115mg/L 2050.2933

Molybdenum, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455056

WG455056ICV 08/28/18 18:50 98ICV MS180730-1 .01964 90 110mg/L.02006

WG455056ICB 08/28/18 18:52ICB U -0.0011 0.0011mg/L

WG455056LFB 08/28/18 18:54 102LFB MS180806-8 .05095 85 115mg/L.05015

L46201-01AS 08/28/18 19:21 .003 94AS MS180806-8 .0973 70 130mg/L.1003

L46201-01ASD 08/28/18 19:23 .003 97ASD MS180806-8 .1005 370 130mg/L 20.1003

Nickel, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455056

WG455056ICV 08/28/18 18:50 97ICV MS180730-1 .04872 90 110mg/L.05

WG455056ICB 08/28/18 18:52ICB U -0.00132 0.00132mg/L

WG455056LFB 08/28/18 18:54 102LFB MS180806-8 .0509 85 115mg/L.0501

L46201-01AS 08/28/18 19:21 .001 86AS MS180806-8 .087 70 130mg/L.1002

L46201-01ASD 08/28/18 19:23 .001 88ASD MS180806-8 .0894 370 130mg/L 20.1002

Page 7 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Nitrate/Nitrite as N M353.2 - H2SO4 preserved

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454699

WG454699ICV 08/22/18 22:05 100ICV WI180602-1 2.426 90 110mg/L2.416

WG454699ICB 08/22/18 22:07ICB U -0.02 0.02mg/L

WG454703

WG454703LFB 08/22/18 23:42 103LFB WI180703-7 2.064 90 110mg/L2

L46045-01AS 08/22/18 23:45 U 108AS WI180703-7 2.164 90 110mg/L2

L46045-02DUP RA08/22/18 23:47 UDUP U 0mg/L 20

Potassium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 98ICV II180727-1 19.69 95 105mg/L20

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 96LFB II180809-4 97.45 85 115mg/L101.3833

L46228-01AS 08/27/18 12:08 4 96AS II180809-4 101.4 85 115mg/L101.3833

L46228-01ASD 08/27/18 12:11 4 96ASD II180809-4 101.6 085 115mg/L 20101.3833

Residue, Filterable (TDS) @180C SM2540C

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG453860

WG453860PBW 08/13/18 11:10PBW 10 -20 20mg/L

WG453860LCSW 08/13/18 11:13 99LCSW PCN56037 258 80 120mg/L260

L46202-01DUP 08/13/18 11:47 10600DUP 10500 1mg/L 10

Selenium, dissolved SM 3114 B, AA-Hydride

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454156

WG454156ICV 08/16/18 13:15 105ICV SE180801-2 .0263 90 110mg/L.025025

WG454156ICB 08/16/18 13:17ICB U -0.003 0.003mg/L

WG454156LRB 08/16/18 13:19LRB U -0.003 0.003mg/L

WG454156LFB 08/16/18 13:21 105LFB SE180709-4 .0234 85 115mg/L.02224

L46194-10LFM 08/16/18 13:53 .007 99LFM SE180709-4 .029 85 115mg/L.02224

L46194-10LFMD 08/16/18 13:56 .007 98LFMD SE180709-4 .0288 185 115mg/L 20.02224

Sodium, dissolved M200.7 ICP

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG454778

WG454778ICV 08/27/18 10:28 99ICV II180727-1 98.59 95 105mg/L100

WG454778ICB 08/27/18 10:34ICB U -0.6 0.6mg/L

WG454778LFB 08/27/18 10:47 96LFB II180809-4 96.6 85 115mg/L100.8796

L46228-01AS 08/27/18 12:08 51.2 92AS II180809-4 143.7 85 115mg/L100.8796

L46228-01ASD 08/27/18 12:11 51.2 92ASD II180809-4 144.2 085 115mg/L 20100.8796

Page 8 of 22L46201-1809240933

Page 129: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Sulfate D516-02/-07 - Turbidimetric

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455064

WG455064ICB 08/29/18 10:05ICB 1.2 -3 3mg/L

WG455064ICV 08/29/18 10:05 104ICV WI180827-2 20.8 90 110mg/L20

WG455064LFB 08/29/18 13:33 107LFB WI180726-1 10.7 90 110mg/L10

L46201-01DUP 08/29/18 14:16 1970DUP 1860 6mg/L 20

L46201-02AS M308/29/18 14:18 3210 -7100AS SO4TURB 2500 90 110mg/L10.0000008

Uranium, dissolved M200.8 ICP-MS

ACZ ID Analyzed Rec%Sample QualLower Upper RPDFoundType UnitsPCN/SCN LimitQC

WG455056

WG455056ICV 08/28/18 18:50 100ICV MS180730-1 .04984 90 110mg/L.05

WG455056ICB 08/28/18 18:52ICB U -0.00022 0.00022mg/L

WG455056LFB 08/28/18 18:54 106LFB MS180806-8 .05288 85 115mg/L.05

L46201-01AS 08/28/18 19:21 .0006 104AS MS180806-8 .10422 70 130mg/L.1

L46201-01ASD 08/28/18 19:23 .0006 107ASD MS180806-8 .10751 370 130mg/L 20.1

Page 9 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Inorganic Extended

Qualifier Report

ACZ Project ID: L46201Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547781L46201-01

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454610

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455064

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547782L46201-02

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454610

Q3 Sample received with improper or inadequate chemical preservation.

D7511-09Cyanide, TotalWG453859

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455064

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

M200.7 ICPCalcium, dissolvedWG4547783L46201-03

M1 Matrix spike recovery was high, the recovery of the associated control sample (LCS or LFB) was acceptable.

SM4500Cl-EChlorideWG454610

RA Relative Percent Difference (RPD) was not used for data validation because the concentration of the duplicated sample is too low for accurate evaluation (< 10x MDL).

M353.2 - H2SO4 preservedNitrate/Nitrite as NWG454703

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The recovery of the associated control sample (LCS or LFB) was acceptable.

D516-02/-07 - TurbidimetricSulfateWG455064

ZW Method deviation. The sample was centrifuged prior to analysis due to high solid content.

SM2320B - TitrationTotal AlkalinityWG454327

REPAD.15.06.05.01

Page 10 of 22L46201-1809240933

Page 131: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46201-01

Sample ID: 33-01 TRA

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/09/18 15:25

Date Received: 08/11/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 6.4 pCi/L calc09/21/18 15:24

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 6.8 7.6 22 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 2 1.3 2.4 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.63 0.12 0.05 pCi/L tjr08/23/18 0:24

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 1.9 0.96 0.92 pCi/L jlg08/31/18 13:17

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.18 0.25 0.71 pCi/L * jlg/djc08/23/18 0:20

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 11 of 22L46201-1809240933

Page 132: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46201-02

Sample ID: 31-67 TRB

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/10/18 10:24

Date Received: 08/11/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha - Corrected

Calculation

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha - Corrected 35 pCi/L calc09/21/18 15:24

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 43 33 110 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 1.9 1.6 3 pCi/L * jlg09/17/18 15:21

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 3.2 0.23 0.05 pCi/L tjr08/23/18 0:25

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 13 1.3 0.88 pCi/L jlg08/31/18 13:17

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.2 0.23 0.9 pCi/L * jlg/djc08/23/18 0:21

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 12 of 22L46201-1809240933

Page 133: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Sample ID: L46201-03

Sample ID: 31-65 ALL

Sample Matrix: Groundwater

Rio Algom Mining Company

Project ID: 4506946843

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Date Sampled: 08/10/18 12:13

Date Received: 08/11/18

Locator:

RadioChemistry

Analytical Results

Gross Alpha, dissolved

M9310

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Gross Alpha, dissolved 33 60 220 pCi/L * amk08/20/18 0:00

Lead 210, dissolved

EICHROM, OTW01

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Lead 210, dissolved 8.3 3.3 6.7 pCi/L * jlg09/21/18 11:42

Radium 226, dissolved

M903.1

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 226, dissolved 0.27 0.15 0.14 pCi/L * tjr08/23/18 0:27

Radium 228, dissolved

M9320

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Radium 228, dissolved 0.68 0.83 0.83 pCi/L * jlg09/05/18 18:28

Thorium 230, dissolved

ESM 4506

Prep Method:

Parameter Result LLDError(+/-) Units XQMeasure Date Prep Date Analyst

Thorium 230, dissolved -0.02 0.32 0.66 pCi/L * jlg/djc08/23/18 0:23

REPRC.02.06.05.01 * Please refer to Qualifier Reports for details.

Page 13 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Report Header Explanations

Batch A distinct set of samples analyzed at a specific time

Error(+/-) Calculated sample specific uncertainty

Found Value of the QC Type of interest

Limit Upper limit for RPD, in %.

LCL Lower Control Limit, in % (except for LCSS, mg/Kg)

LLD Calculated sample specific Lower Limit of Detection

PCN/SCN A number assigned to reagents/standards to trace to the manufacturer's certificate of analysis

PQL Practical Quantitation Limit

QC True Value of the Control Sample or the amount added to the Spike

Rec Amount of the true value or spike added recovered, in % (except for LCSS, mg/Kg)

RER Relative Error Ratio, calculation used for Dup. QC taking into account the error factor.

RPD Relative Percent Difference, calculation used for Duplicate QC Types

UCL Upper Control Limit, in % (except for LCSS, mg/Kg)

Sample Value of the Sample of interest

QC Sample Types

DUP Sample Duplicate MS/MSD Matrix Spike/Matrix Spike Duplicate

LCSS Laboratory Control Sample - Soil PBS Prep Blank - Soil

LCSW Laboratory Control Sample - Water PBW Prep Blank - Water

QC Sample Type Explanations

Blanks Verifies that there is no or minimal contamination in the prep method procedure.

Control Samples Verifies the accuracy of the method, including the prep procedure.

Duplicates Verifies the precision of the instrument and/or method.

Matrix Spikes Determines sample matrix interferences, if any.

ACZ Qualifiers (Qual)

H Analysis exceeded method hold time.

Method Prefix Reference

M EPA methodology, including those under SDWA, CWA, and RCRA

SM Standard Methods for the Examination of Water and Wastewater.

D ASTM

RP DOE

ESM DOE/ESM

Comments

(1) Solid matrices are reported on a dry weight basis.

(2) Preparation method: "Method" indicates preparation defined in analytical method.

(3) QC results calculated from raw data. Results may vary slightly if the rounded values are used in the calculations.

(4) An asterisk in the "XQ" column indicates there is an extended qualifier and/or certification

qualifier associated with the result.

For a complete list of ACZ's Extended Qualifiers, please click: http://www.acz.com/public/extquallist.pdf

REP003.09.12.01

Radiochemistry

Reference

Page 14 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Gross Alpha, dissolved M9310

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG454470

L46080-01MSA M208/20/18 0.73 55MS PCN55778 4275.19 67 1446.71.6 22

L46173-01DUP 08/20/18 38DUP-RER 49 27.7 1.086.7 137.6

WG453910LCSWA 08/20/18 88LCSW PCN55778 88100 67 1447.8 1.3

WG453910PBW 08/20/18PBW .24 1.70.66 0.85

L46080-01DUP 08/20/18 0.73DUP-RER -.57 21.1 0.671.6 22

Lead 210, dissolved EICHROM, OTW01

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG456032

WG455293LCSW 09/17/18 90LCSW PCN54282 8796.72 55 1213.2 2.3

WG455293PBW 09/17/18PBW 1.8 4.81.3 2.4

L46201-01DUP 09/17/18 2DUP-RER 1.1 21.3 0.491.3 2.52.4

L46194-03DUP 09/17/18 2.5DUP-RER 3 21.4 0.251.4 2.62.7

L46301-01MS 09/17/18 2.5 97MS PCN54282 9696.72 55 1214.11.5 3.12.8

WG456907

L46710-01DUP 09/21/18 140DUP-RER 140 210 010 1413

L46710-01MS 09/21/18 140 87MS PCN54282 560483.45 55 1211810 1513

WG456443LCSW 09/21/18 102LCSW PCN54282 9996.69 55 1213.4 2.8

WG456443PBW 09/21/18PBW 2.9 5.61.4 2.8

Page 15 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Radium 226, dissolved M903.1

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG454785

WG453900PBW 08/23/18PBW .18 0.340.07 0.17

WG453900LCSW 08/23/18 95LCSW PCN54813 1920 43 1480.53 0.21

L46071-02DUP N108/23/18 2.2DUP-RER 3 20.31 2.20.19 0.20.07

L46201-02DUP 08/23/18 3.2DUP-RER 3.5 20.41 0.640.23 0.160.05

L46071-02MS 08/23/18 2.2 108MS PCN54813 7466.67 43 14820.19 0.180.07

Radium 228, dissolved M9320

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG455502

WG454757LCSW 08/31/18 100LCSW PCN57186 109.96 47 1231.2 0.78

WG454757PBW 08/31/18PBW .51 0.740.38 0.37

L45903-01DUP 08/31/18 0.87DUP-RER .46 20.87 0.340.83 0.890.83

L45903-03MS 08/31/18 0.76 113MS PCN57186 129.96 47 1231.30.79 0.920.8

L45902-02DUP 08/31/18 0.41DUP-RER .98 20.82 0.510.76 0.820.78

WG455769

WG455209LCSW 09/05/18 97LCSW PCN57186 9.69.95 47 1231.2 0.83

WG455209PBW 09/05/18PBW -.08 0.860.41 0.43

L46194-11MS 09/05/18 1.2 112MS PCN57186 2924.86 47 1233.10.85 2.10.83

L46194-08DUP 09/05/18 -0.14DUP-RER .91 21.7 0.560.8 1.70.84

L46488-01DUP 09/05/18 0.24DUP-RER .8 20.84 0.450.91 0.840.95

Page 16 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Radiochemistry QC

Summary

ACZ Project ID: L46201Rio Algom Mining Company

NOTE: If the Rec% column is null, the high/low limits are in the same units as the result. If the Rec% column is not null, then the high/low limits are in % Rec.

Thorium 230, dissolved ESM 4506

ACZ ID Analyzed Rec%Sample QualLower UpperQC FoundType ErrorPCN/SCN LimitRPD/RER

pCi/L

Error LLDLLD

Units:

WG455123

WG454386PBW 08/23/18PBW -.12 1.320.18 0.66

WG454386LCSW 08/23/18 105LCSW PCN56774 210200 91 1264.7 0.64

L46194-02DUP 08/23/18 0.07DUP-RER -.05 20.37 0.250.31 0.680.63

L46196-01DUP 08/23/18 0.29DUP-RER -.13 20.31 1.070.24 0.70.72

L46194-06MS 08/23/18 -0.08 110MS PCN56774 220200 91 1265.20.25 0.841.1

Page 17 of 22L46201-1809240933

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

RadChem Extended

Qualifier Report

ACZ Project ID: L46201Rio Algom Mining Company

ACZ ID PARAMETER QUAL DESCRIPTIONMETHODWORKNUM

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544701L46201-01

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544702L46201-02

M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable.

M9310Gross Alpha, dissolvedWG4544703L46201-03

QB Method-specified preservation criteria cannot be met due to sample matrix.

M9310

D1 Sample required dilution due to matrix.EICHROM, OTW01Lead 210, dissolvedWG456907

DJ Sample dilution required due to insufficient sample.M903.1Radium 226, dissolvedWG454785

QB Method-specified preservation criteria cannot be met due to sample matrix.

M903.1

QB Method-specified preservation criteria cannot be met due to sample matrix.

M9320Radium 228, dissolvedWG455769

REPAD.15.06.05.01

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Certification

Qualifiers

ACZ Project ID: L46201Rio Algom Mining Company

Radiochemistry

The following parameters are not offered for certification or are not covered by NELAC certificate #ACZ.

Lead 210, dissolved EICHROM, OTW01

Thorium 230, dissolved ESM 4506

REPAD.05.06.05.01

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ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/11/2018 11:26

L46201

Date Printed: 8/13/2018

Chain of Custody Related Remarks

Client Contact Remarks

NANOYES

X

X

X

X

X

X

1) Is a foreign soil permit included for applicable samples?

2) Is the Chain of Custody form or other directive shipping papers present?

3) Does this project require special handling procedures such as CLP protocol?

4) Are any samples NRC licensable material?

5) If samples are received past hold time, proceed with requested short hold time analyses?

6) Is the Chain of Custody form complete and accurate?

7) Were any changes made to the Chain of Custody form prior to ACZ receiving the samples?

Receipt Verification

NANOYES

X

X

X

X

X

X

X

X8) Are all containers intact and with no leaks?

9) Are all labels on containers and are they intact and legible?

10) Do the sample labels and Chain of Custody form match for Sample ID, Date, and Time?

11) For preserved bottle types, was the pH checked and within limits?

12) Is there sufficient sample volume to perform all requested work?

13) Is the custody seal intact on all containers?

14) Are samples that require zero headspace acceptable?

15) Are all sample containers appropriate for analytical requirements?

16) Is there an Hg-1631 trip blank present?

17) Is there a VOA trip blank present?

18) Were all samples received within hold time?

Samples/Containers

X

X

X

Shipping Containers

Client must contact an ACZ Project Manager if analysis should not proceed for samples received outside of their thermal preservation acceptance criteria.

L46201-03 Container B2022588 (GREEN CUBE): Added 10 mls nitric

acid to the sub-sample. The pH is 7.

Cooler Id Temp(°C) Temp Rad(µR/Hr) Custody Seal Criteria(°C) Intact?--------- -------- ------------ ---------- ------------

4275 21.6 NA 15 Yes

3920 4.8 <=6.0 14 Yes

X

Was ice present in the shipment container(s)?

Yes - Wet ice was present in the shipment container(s).

1

NA indicates Not Applicable

REPAD LPII 2012-03

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Page 141: ACZ Laboratories, Inc.ACZLaboratories, Inc. 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Analytical Report Rio Algom Mining Company P.O. Box 218 Grants, NM 87020

ACZ Laboratories, Inc.2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493

Sample

Receipt

Rio Algom Mining Company4506946843

ACZ Project ID:

Date Received:

Received By:

08/11/2018 11:26

L46201

Date Printed: 8/13/2018

The preservation of the following bottle types is not checked at sample receipt: Orange (oil and grease), Purple (total cyanide), Pink (dissolved cyanide), Brown (arsenic speciation), Sterile (fecal

coliform), EDTA (sulfite), HCl preserved vial (organics), Na2S2O3 preserved vial (organics), and HG-1631 (total/dissolved mercury by method 1631).

1

REPAD LPII 2012-03

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Page 22 of 22L46201-1809240933