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2018 Annual Closure Report

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2018 Annual Closure Report Appendix J 2018 Old Camp Water Quality Results 900 - 606 4 Street SW, Calgary, AB, Canada, T2P 1T1 T 1.403.910.1933 F 1.403.910.1934 www.ddcorp.ca Dominion Diamond Ekati Corporation Date Received: 15-JUN-18 (DDEC) Report Date: 29-JUN-18 13:43 (MT) ATTN: David G. Bruce / Richard E. Ehlert Version: FINAL # 1102 - 4920 52nd Street Yellowknife NT X1A 3T1 Client Phone: 867-880-2157 Certificate of Analysis Lab Work Order #: L2113551 Project P.O. #: EKA 3002 PHASE 1 Job Reference: 75017 C of C Numbers: 75017 Legal Site Desc: 6204050324 ____________________________________________ Can Dang Senior Account Manager [This report shall not be reproduced except in full without the written authority of the Laboratory.] ADDRESS: 8081 Lougheed Hwy, Suite 100, Burnaby, BC V5A 1W9 Canada | Phone: +1 604 253 4188 | Fax: +1 604 253 6700 ALS CANADA LTD Part of the ALS Group An ALS Limited Company L2113551 CONTD.... PAGE 2 of 7 ALS ENVIRONMENTAL ANALYTICAL REPORT 29-JUN-18 13:43 (MT) Version: FINAL Sample ID L2113551-1 L2113551-2 L2113551-3 L2113551-4 Description WATER WATER WATER WATER Sampled Date 13-JUN-18 13-JUN-18 13-JUN-18 13-JUN-18 Sampled Time 16:30 16:00 15:50 16:15 Client ID LARRY LAKE NORTH POND PHASE 1 TRENCH SOUTH POND Grouping Analyte WATER Physical Tests Conductivity (uS/cm) 45.8 212 65.9 191 Hardness (as CaCO3) (mg/L) 14.6 91.6 23.7 78.3 pH (pH) 7.29 7.86 7.32 7.93 Total Suspended Solids (mg/L) 4.0 10.8 4.0 13.8 Total Dissolved Solids (mg/L) 65 168 52 146 Turbidity (NTU) 0.83 7.04 6.08 10.1 Anions and Alkalinity, Total (as CaCO3) (mg/L) 11.3 69.9 12.5 65.0 Nutrients Ammonia, Total (as N) (mg/L) <0.0050 0.441 <0.0050 0.358 Chloride (Cl) (mg/L) 0.51 0.72 <0.50 0.89 Fluoride (F) (mg/L) 0.030 0.072 0.042 0.068 Nitrate and Nitrite (as N) (mg/L) 0.0235 0.120 0.225 0.211 Nitrate (as N) (mg/L) 0.0235 0.110 0.224 0.192 Nitrite (as N) (mg/L) <0.0010 0.0100 0.0015 0.0194 Total Kjeldahl Nitrogen (mg/L) 0.352 1.21 0.179 1.09 Orthophosphate-Dissolved (as P) (mg/L) 0.0013 0.0053 0.0031 0.0084 Phosphorus (P)-Total Dissolved (mg/L) 0.0051 0.0186 0.0065 0.0207 Phosphorus (P)-Total (mg/L) 0.0071 0.0367 0.0111 0.0393 SFT SFT Silicate (as SiO2) (mg/L) 0.85 6.55 3.03 6.31 Sulfate (SO4) (mg/L) 7.76 35.3 14.6 28.5 Organic / Total Carbon (mg/L) 9.33 33.7 8.34 30.9 Inorganic Carbon Total Inorganic Carbon (mg/L) 3.53 16.5 3.79 15.0 Total Organic Carbon (mg/L) 5.81 17.2 4.55 15.9 Total Metals Aluminum (Al)-Total (mg/L) 0.0379 0.0719 0.300 0.231 Antimony (Sb)-Total (mg/L) <0.00010 0.00014 <0.00010 <0.00010 Arsenic (As)-Total (mg/L) 0.00030 0.00422 0.00041 0.00407 Barium (Ba)-Total (mg/L) 0.00729 0.0487 0.0159 0.0505 Beryllium (Be)-Total (mg/L) <0.00010 <0.00010 <0.00010 <0.00010 Boron (B)-Total (mg/L) <0.010 0.012 <0.010 0.010 Cadmium (Cd)-Total (mg/L) <0.0000050 0.0000130 0.0000063 0.0000070 Calcium (Ca)-Total (mg/L) 2.62 23.5 5.67 17.8 Chromium (Cr)-Total (mg/L) 0.00021 0.00102 0.00078 0.00131 Cobalt (Co)-Total (mg/L) 0.00018 0.00109 0.00025 0.00201 Copper (Cu)-Total (mg/L) 0.00148 0.00474 0.00654 0.00445 Iron (Fe)-Total (mg/L) 0.209 2.88 0.307 3.14 Lead (Pb)-Total (mg/L) <0.000050 0.000089 0.000139 0.000158 Magnesium (Mg)-Total (mg/L) 1.95 6.57 2.07 6.90 * Please refer to the Reference Information section for an explanation of any qualifiers detected. L2113551 CONTD.... PAGE 3 of 7 ALS ENVIRONMENTAL ANALYTICAL REPORT 29-JUN-18 13:43 (MT) Version: FINAL Sample ID L2113551-1 L2113551-2 L2113551-3 L2113551-4 Description WATER WATER WATER WATER Sampled Date 13-JUN-18 13-JUN-18 13-JUN-18 13-JUN-18 Sampled Time 16:30 16:00 15:50 16:15 Client ID LARRY LAKE NORTH POND PHASE 1 TRENCH SOUTH POND Grouping Analyte WATER Total Metals Manganese (Mn)-Total (mg/L) 0.0266 0.179 0.00769 0.227 Mercury (Hg)-Total (mg/L) <0.0000050 <0.0000050 <0.0000050 <0.0000050 Molybdenum (Mo)-Total (mg/L) 0.000100 0.00248 0.000413 0.00185 Nickel (Ni)-Total (mg/L) 0.00202 0.00930 0.00338 0.0106 Potassium (K)-Total (mg/L) 1.75 5.57 2.88 4.85 Selenium (Se)-Total (mg/L) <0.000050 0.000194 0.000122 0.000102 Silicon (Si)-Total (mg/L) 0.48 3.38 1.99 3.62 Silver (Ag)-Total (mg/L) <0.000010 <0.000010 <0.000010 0.000011 Sodium (Na)-Total (mg/L) 2.26 6.91 2.30 7.98 Strontium (Sr)-Total (mg/L) 0.0219 0.150 0.0352 0.147 Uranium (U)-Total (mg/L) 0.000075 0.00677 0.000607 0.00277 Vanadium (V)-Total (mg/L) <0.00050 0.00101 0.00068 0.00127 Zinc (Zn)-Total (mg/L) <0.0030 <0.0030 <0.0030 <0.0030 Dissolved Metals Dissolved Mercury Filtration Location LAB LAB LAB LAB Dissolved Metals Filtration Location LAB LAB LAB LAB Aluminum (Al)-Dissolved (mg/L) 0.0138 0.0357 0.0749 0.0544 Antimony (Sb)-Dissolved (mg/L) <0.00010 0.00014 <0.00010 <0.00010 Arsenic (As)-Dissolved (mg/L) 0.00027 0.00349 0.00030 0.00345 Barium (Ba)-Dissolved (mg/L) 0.00737 0.0478 0.0145 0.0490 Beryllium (Be)-Dissolved (mg/L) <0.00010 <0.00010 <0.00010 <0.00010 Boron (B)-Dissolved (mg/L) <0.010 0.013 <0.010 0.012 Cadmium (Cd)-Dissolved (mg/L) <0.0000050 <0.0000050 <0.0000050 <0.0000050 Calcium (Ca)-Dissolved (mg/L) 2.69 25.3 6.33 19.5 DLB DLB Chromium (Cr)-Dissolved (mg/L) <0.00015 0.00067 <0.00025 0.00070 Cobalt (Co)-Dissolved (mg/L) <0.00010 0.00025 <0.00010 0.00023 Copper (Cu)-Dissolved (mg/L) 0.00130 0.00432 0.00551 0.00385 Iron (Fe)-Dissolved (mg/L) 0.046 1.98 0.075 2.22 Lead (Pb)-Dissolved (mg/L) <0.000050 0.000057 0.000053 0.000075 Magnesium (Mg)-Dissolved (mg/L) 1.92 6.92 1.91 7.17 Manganese (Mn)-Dissolved (mg/L) 0.00074 0.00117 0.00249 0.00209 Mercury (Hg)-Dissolved (mg/L) <0.0000050 <0.0000050 <0.0000050 <0.0000050 Molybdenum (Mo)-Dissolved (mg/L) 0.000087 0.00241 0.000399 0.00188 Nickel (Ni)-Dissolved (mg/L) 0.00183 0.00781 0.00245 0.00861 Potassium (K)-Dissolved (mg/L) 1.89 6.42 3.07 5.53 Selenium (Se)-Dissolved (mg/L) <0.000050 0.000223 0.000111 0.000133 Silicon (Si)-Dissolved (mg/L) 0.432 3.32 1.55 3.27 Silver (Ag)-Dissolved (mg/L) <0.000010 <0.000010 <0.000010 <0.000010 * Please refer to the Reference Information section for an explanation of any qualifiers detected. L2113551 CONTD.... PAGE 4 of 7 ALS ENVIRONMENTAL ANALYTICAL REPORT 29-JUN-18 13:43 (MT) Version: FINAL Sample ID L2113551-1 L2113551-2 L2113551-3 L2113551-4 Description WATER WATER WATER WATER Sampled Date 13-JUN-18 13-JUN-18 13-JUN-18 13-JUN-18 Sampled Time 16:30 16:00 15:50 16:15 Client ID LARRY LAKE NORTH POND PHASE 1 TRENCH SOUTH POND Grouping Analyte WATER Dissolved Metals Sodium (Na)-Dissolved (mg/L) 2.45 7.64 2.47 8.95 Strontium (Sr)-Dissolved (mg/L) 0.0220 0.160 0.0388 0.159 Uranium (U)-Dissolved (mg/L) 0.000061 0.00587 0.000523 0.00250 Vanadium (V)-Dissolved (mg/L) <0.00050 0.00062 <0.00050 0.00066 Zinc (Zn)-Dissolved (mg/L) <0.0010 <0.0010 <0.0010 <0.0010 Volatile Organic Benzene (mg/L) <0.00050 <0.00050 <0.00050 <0.00050 Compounds Ethylbenzene (mg/L) <0.00050 <0.00050 <0.00050 <0.00050 Styrene (mg/L) <0.00050 <0.00050 <0.00050 <0.00050 Toluene (mg/L) <0.00050 0.00290 <0.00050 <0.00050 ortho-Xylene (mg/L) <0.00050 <0.00050 <0.00050 <0.00050 meta- & para-Xylene (mg/L) <0.00050 <0.00050 <0.00050 <0.00050 Xylenes (mg/L) <0.00075 <0.00075 <0.00075 <0.00075 Surrogate: 4-Bromofluorobenzene (SS) (%) 93.0 84.0 97.5 95.2 Surrogate: 1,4-Difluorobenzene (SS) (%) 89.5 92.2 92.4 96.0 Hydrocarbons TVH (C5-C10) (mg/L) <0.10 <0.10 <0.10 <0.10 TEH10-30 (mg/L) <0.10 0.15 <0.10 <0.10 TPH5-30 (mg/L) <0.25 <0.25 <0.25 <0.25 Surrogate: 2-Bromobenzotrifluoride (%) 113.0 84.0 123.7 100.1 * Please refer to the Reference Information section for an explanation of any qualifiers detected. L2113551 CONTD.... PAGE 5 of 7 29-JUN-18 13:43 (MT) Reference Information Version: FINAL QC Samples with Qualifiers & Comments: QC Type Description Parameter Qualifier Applies to Sample Number(s) Method Blank Manganese (Mn)-Total B L2113551-1, -2, -3, -4 Method Blank Chromium (Cr)-Dissolved MB-LOR L2113551-1, -2, -3, -4 Method Blank Sodium (Na)-Dissolved MB-LOR L2113551-1, -2, -3, -4 Matrix Spike Total Inorganic Carbon MS-B L2113551-1, -2, -3, -4 Matrix Spike Total Organic Carbon MS-B L2113551-1, -2, -3, -4 Matrix Spike Barium (Ba)-Dissolved MS-B L2113551-1, -2, -3, -4 Matrix Spike Calcium (Ca)-Dissolved MS-B L2113551-1, -2, -3, -4 Matrix Spike Magnesium (Mg)-Dissolved MS-B L2113551-1, -2, -3, -4 Matrix Spike Strontium (Sr)-Dissolved MS-B L2113551-1, -2, -3, -4 Matrix Spike Aluminum (Al)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Barium (Ba)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Calcium (Ca)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Iron (Fe)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Magnesium (Mg)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Manganese (Mn)-Total MS-B L2113551-1, -2, -3, -4 Matrix Spike Strontium (Sr)-Total MS-B L2113551-1, -2, -3, -4 Qualifiers for Individual Parameters Listed: Qualifier Description B Method Blank exceeds ALS DQO.
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