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Your Project #: VILLAGE OF TAHSIS Your C.O.C. #: 084437 Attention:Mark DeGagne -35 Estevan Rd Nanaimo, BC CANADA V9S 3Y3 Report #: R24287 Version: - Final MAXXAM JOB #: B5B343 Received: 205/2/22, 5:45 Sample Matrix: Water # Samples Received: Analyses Chloride by Automated Colourimetry () Conductance - water () EPH in Water when PAH required () Nitrate + Nitrite (N) () Nitrite (N) by CFA () Nitrogen - Nitrate (as N) () PAH in Water by GC/MS (SIM) () Total LMW, HMW, Total PAH Calc () ph Water (, 5) Phenols (4-AAP) () Phenoxyalkyl acid Pesticides (2) Sulphate by Automated Colourimetry () Total Dissolved Solids (Filt. Residue) () EPH less PAH in Water by GC/FID () Tannin & Lignin (Total) () Carbon (Total Organic) (, 6) VOCs, VH, F, LH in Water by HS GC/MS () Volatile HC-BTEX () Glyphosate Water Subcontract (3) Pesticides in Water by LCMS Subcontract (4) RFA Water Subcontract (4) CERTIFICATE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method N/A 205/2/29 BBY6SOP-000 N/A 205/2/29 BBY6SOP-00026 205/2/ 205/2/3 BBY8SOP-00029 N/A 205/2/24 BBY6SOP-0000 N/A 205/2/24 BBY6SOP-0000 N/A 205/2/29 BBY6SOP-0000 205/2/ 205/2/3 BBY8SOP-0002 N/A 206/0/04 BBY WI-00033 N/A 205/2/29 BBY6SOP-00026 N/A 205/2/29 BBY6SOP-00008 206/0/06 206/0/06 CAL SOP-000 N/A 205/2/29 BBY6SOP-0007 205/2/24 205/2/29 BBY6SOP-00033 N/A 206/0/04 BBY WI-00033 N/A 205/2/24 BRN SOP-0022 R.0 N/A 205/2/ BBY6SOP-00003 205/2/24 205/2/24 BBY8SOP-00009 N/A 205/2/29 BBY WI-00033 206/0/ 206/0/ CAM SOP-005 206/0/2 206/0/2 206/0/2 206/0/2 Analytical Method SM 22 4500-Cl- G m SM 22 250 B m BCMOE EPH w 2/00 m SM 22 4500-NO3- I m SM 22 4500-NO3- I m SM 22 4500-NO3 I m EPA 8270d R4 m Auto Calc SM 22 4500-H+ B m SM 22 55 D m EPA 85 R m SM 22 4500-SO42- E m SM 22 25 C m Auto Calc SM-5550 B SM 22 5 C m EPA 8260c R3 m Auto Calc HPLC/FLD Reference Method suffix m indicates test methods incorporate validated modifications from specific reference methods to improve performance. * RPDs calculated using raw data. The rounding of final results may result in the apparent difference. () This test was performed by Maxxam Vancouver (2) This test was performed by Maxxam Calgary Environmental (3) This test was performed by Maxxam Ontario (From Burnaby) (4) This test was performed by Maxxam Montreal (From Burnaby) (5) The BC-MOE and APHA Standard Method require ph to be analysed within 5 minutes of sampling and therefore field analysis is required for compliance. All Laboratory ph analyses in this report are reported past the BC-MOE/APHA Standard Method holding time. (6) TOC present in the sample should be considered as non-purgeable TOC. Page of 4

Your Project #: VILLAGE OF TAHSIS Your C.O.C. #: 084437 Attention:Mark DeGagne -35 Estevan Rd Nanaimo, BC CANADA V9S 3Y3 Report #: R24287 Version: - Final MAXXAM JOB #: B5B343 Received: 205/2/22, 5:45 CERTIFICATE OF ANALYSIS Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Debbie Nordbruget, Project Manager Email: DNordbruget@maxxam.ca Phone# (250)385-62 ==================================================================== This report has been generated and distributed using a secure automated process. Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5.0.2 of ISO/IEC 7025:2005(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Total Cover Pages : 2 Page 2 of 4

Maxxam Job #: B5B343 RESULTS OF CHEMICAL ANALYSES OF WATER Maxxam ID Sampling Date COC Number Parameter Subcontract Parameter ANIONS Nitrite (N) Calculated Parameters Nitrate (N) Misc. Inorganics Total Organic Carbon (C) Anions Dissolved Sulphate (SO4) Dissolved Chloride (Cl) MISCELLANEOUS Tannins and Lignins Nutrients Nitrate plus Nitrite (N) Misc. Organics Phenols Physical Properties Conductivity ph Physical Properties Total Dissolved Solids N/A us/cm ph RDL = Reportable Detection Limit N/A = Not Applicable NW78 205/2/22 09: 084437 COMMUNITY WELL # ATTACHED <0.0050 0.072 3.77.3 <0.0 0.072 <0.000 6 8.07 50 RDL N/A 0.0050 0.020 0.0 0.020 0.000.0 N/A 0 Page 3 of 4

Maxxam Job #: B5B343 RESULTS OF CHEMICAL ANALYSES OF WATER Maxxam ID Sampling Date COC Number Polycyclic Aromatics Low Molecular Weight PAH`s High Molecular Weight PAH`s Total PAH Naphthalene 2-Methylnaphthalene -Methylnaphthalene Quinoline Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Acridine Fluoranthene Pyrene Benzo(a)anthracene Chrysene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(a)pyrene Perylene Indeno(,2,3-cd)pyrene Dibenz(a,h)anthracene Benzo(g,h,i)perylene Calculated Parameters LEPH (C0-C9 less PAH) HEPH (C9-C32 less PAH) Ext. Pet. Hydrocarbon EPH (C0-C9) EPH (C9-C32) Surrogate Recovery () O-TERPHENYL (sur.) D0-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) RDL = Reportable Detection Limit NW78 205/2/22 09: 084437 COMMUNITY WELL # <0.24 <0.24 <0.0 <0.0 <0.24 <0.00 <0.00 <0.00 <0.20 <0.20 <0.20 <0.20 4 5 RDL 0.24 0.24 0.0 0.0 0.24 0.00 0.020 0.020 0.00 0.00 0.20 0.20 0.20 0.20 Page 4 of 4

Maxxam Job #: B5B343 RESULTS OF CHEMICAL ANALYSES OF WATER Maxxam ID Sampling Date COC Number D9-Acridine TERPHENYL-D4 (sur.) RDL = Reportable Detection Limit NW78 205/2/22 09: 084437 COMMUNITY WELL # 04 2 RDL Page 5 of 4

Maxxam Job #: B5B343 RESULTS OF CHEMICAL ANALYSES OF WATER Maxxam ID Sampling Date COC Number NW78 205/2/22 09: 084437 COMMUNITY WELL # RDL Volatiles VPH (VH6 to 0 - BTEX) Chloromethane Vinyl chloride Chloroethane Trichlorofluoromethane,,2Trichloro-,2,2Trifluoroethane Dichlorodifluoromethane,-dichloroethene Dichloromethane trans-,2-dichloroethene,-dichloroethane cis-,2-dichloroethene Chloroform,,-trichloroethane,2-dichloroethane Carbon tetrachloride Benzene Methyl-tert-butylether (MTBE),2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Bromomethane,,2-trichloroethane Trichloroethene Chlorodibromomethane,3-Butadiene Tetrachloroethene Bromodichloromethane Toluene Ethylbenzene m & p-xylene Bromoform Styrene o-xylene Xylenes (Total) <0 <.0 <.0 <4.0 <.0 <.0 <.0 <4.0 <.0 <.0 <.0 <.0 <5.0 <.0 <.0 0.0.0 4.0 2.0 2.0 2.0.0.0.0 0. 4.0.0.0.0.0 5.0.0 0. 0. 0..0 0. 0. RDL = Reportable Detection Limit Page 6 of 4

Maxxam Job #: B5B343 RESULTS OF CHEMICAL ANALYSES OF WATER Maxxam ID Sampling Date COC Number NW78 205/2/22 09: 084437 COMMUNITY WELL # RDL,,,2-tetrachloroethane,,2,2-tetrachloroethane,2-dichlorobenzene,3-dichlorobenzene,4-dichlorobenzene Chlorobenzene Dibromomethane Bromobenzene VH C6-C0 Surrogate Recovery () <0. <0 0. 2.0 0,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D4-,2-Dichloroethane (sur.) 04 9 RDL = Reportable Detection Limit Page 7 of 4

Maxxam Job #: B5B343 PHENOXYALKYL ACID PESTICIDES/HERBICIDES (WATER) Maxxam ID Sampling Date COC Number Phenoxyalkyl acid Pest. 3,5-dichlorobenzoic acid Dicamba MCPP MCPA Dichlorprop Bromoxynil 2,4-D Pentachlorophenol 2,4,5-TP 2,4,5-T Chloramben Dinoseb (DNBP) Bentazon 2,4-DB Picloram Diclofop-methyl Surrogate Recovery () 2,4,6-TRIBROMOPHENOL (sur.) RDL = Reportable Detection Limit NW78 205/2/22 09: 084437 COMMUNITY WELL # <0.0050 0 RDL 0.0050 0.020 0.020 0.020 Page 8 of 4

Maxxam Job #: B5B343 GENERAL COMMENTS PHENOXYALKYL ACID PESTICIDES/HERBICIDES (WATER) Comments Sample NW78-02 Phenoxyalkyl acid Pesticides: Sample extracted past method-specified hold time. Results relate only to the items tested. Page 9 of 4

Maxxam Job #: B5B343 QUALITY ASSURAE REPORT Matrix Spike Spiked Blank Method Blank RPD QC Batch Parameter Date Recovery Recovery Value Value () 8533,4-Difluorobenzene (sur.) 205/2/24 04 70-03 70-04 8533 4-Bromofluorobenzene (sur.) 205/2/24 03 70-03 70-9 8533 D4-,2-Dichloroethane (sur.) 205/2/24 70-93 70-89 85624 D0-ANTHRACENE (sur.) 205/2/3 3 60-2 60-25 85624 D8-ACENAPHTHYLENE (sur.) 205/2/3 6 50-4 50-25 85624 D8-NAPHTHALENE (sur.) 205/2/3 50-08 50-20 85624 D9-Acridine 205/2/3 06 50-04 50-3 85624 TERPHENYL-D4 (sur.) 205/2/3 0 60-7 60-26 856243 O-TERPHENYL (sur.) 205/2/3 00 50-50 - 89 85993 2,4,6-TRIBROMOPHENOL (sur.) 206/0/06 96-853749 Total Dissolved Solids 205/2/29 02 80-20 06 80-20 <0 3.4 20 8538 Tannins and Lignins 205/2/24 80-20 80-20 <0.0 20 8533,,,2-tetrachloroethane 205/2/24 70-87 70-8533,,-trichloroethane 205/2/24 70-70 - 8533,,2,2-tetrachloroethane 205/2/24 70-87 70-8533,,2Trichloro-,2,2Trifluoroethane 205/2/24 8533,,2-trichloroethane 205/2/24 70-70 - 8533,-dichloroethane 205/2/24 70-70 - 8533,-dichloroethene 205/2/24 96 70-70 - 8533,2-dichlorobenzene 205/2/24 00 70-70 - 8533,2-dichloroethane 205/2/24 9 70-70 - 8533,2-dichloropropane 205/2/24 70-85 70-8533,3-Butadiene 205/2/24 <5.0 8533,3-dichlorobenzene 205/2/24 0 70-70 - 8533,4-dichlorobenzene 205/2/24 00 70-70 - 8533 Benzene 205/2/24 93 70-70 - 8533 Bromobenzene 205/2/24 70-70 - 8533 Bromodichloromethane 205/2/24 93 70-70 - <.0 8533 Bromoform 205/2/24 9 70-85 70 - <.0 8533 Bromomethane 205/2/24 0 60-9 60 - <.0 8533 Carbon tetrachloride 205/2/24 98 70-70 - 8533 Chlorobenzene 205/2/24 99 70-70 - Page 0 of 4

Maxxam Job #: B5B343 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Method Blank RPD QC Batch Parameter Date Recovery Recovery Value Value () 8533 Chlorodibromomethane 205/2/24 70-70 - <.0 8533 Chloroethane 205/2/24 99 60-60 - <.0 8533 Chloroform 205/2/24 70-87 70 - <.0 8533 Chloromethane 205/2/24 06 60-99 60 - <.0 8533 cis-,2-dichloroethene 205/2/24 98 70-70 - <.0 8533 cis-,3-dichloropropene 205/2/24 70-8 70 - <.0 8533 Dibromomethane 205/2/24 70-70 - <0. 8533 Dichlorodifluoromethane 205/2/24 33 60-24 60-8533 Dichloromethane 205/2/24 08 70-0 70-8533 Ethylbenzene 205/2/24 99 70-9 70-8533 m & p-xylene 205/2/24 96 70-70 - 8533 Methyl-tert-butylether (MTBE) 205/2/24 96 70-70 - <4.0 8533 o-xylene 205/2/24 70-82 70-8533 Styrene 205/2/24 70-83 70-8533 Tetrachloroethene 205/2/24 98 70-9 70-8533 Toluene 205/2/24 70-70 - 8533 trans-,2-dichloroethene 205/2/24 89 70-83 70 - <.0 8533 trans-,3-dichloropropene 205/2/24 78 70-70 70 - <.0 8533 Trichloroethene 205/2/24 70-70 - 8533 Trichlorofluoromethane 205/2/24 3 60-08 60 - <4.0 8533 VH C6-C0 205/2/24 3 70 - <0 8533 Vinyl chloride 205/2/24 05 60-60 - 8533 Xylenes (Total) 205/2/24 85445 ph 205/2/29 0-03 0 N/A 85446 Conductivity 205/2/29 00 80-20 <.0 us/cm.2 20 8549 Nitrate plus Nitrite (N) 205/2/24 80-20 98 80-20 4.3 25 854937 Nitrite (N) 205/2/24 80-20 80-20 <0.0050 2.4 20 855058 Phenols 205/2/29 80-20 98 80-20 <0.000 20 856038 Dissolved Chloride (Cl) 205/2/29 06 80-20 04 80-20 20 856042 Dissolved Sulphate (SO4) 205/2/29 80-20 0.52, RDL= 856070 Total Organic Carbon (C) 205/2/ 06 80-20 02 80-20 20 85624 2-Methylnaphthalene 206/0/03 96 50-85 50 - <0.0 Page of 4

Maxxam Job #: B5B343 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Method Blank RPD QC Batch Parameter Date Recovery Recovery Value Value () 85624 Acenaphthene 206/0/03 0 50-50 - 85624 Acenaphthylene 206/0/03 03 50-50 - 85624 Acridine 206/0/03 50-89 50-85624 85624 85624 Anthracene Benzo(a)anthracene Benzo(a)pyrene 206/0/03 206/0/03 206/0/03 02 67 60-60 - 60-9 60-60 - 60 - <0.00 0.00, RDL=0.00 <0.00 85624 Benzo(b&j)fluoranthene 206/0/03 70 60-87 60-85624 Benzo(g,h,i)perylene 206/0/03 35 () 60-9 60-85624 Benzo(k)fluoranthene 206/0/03 66 60-60 - 85624 Chrysene 206/0/03 60-93 60-85624 Dibenz(a,h)anthracene 206/0/03 34 () 60-60 - 85624 Fluoranthene 206/0/03 0 60-60 - 85624 Fluorene 206/0/03 50-50 - 85624 Indeno(,2,3-cd)pyrene 206/0/03 36 () 60-9 60-85624 Naphthalene 206/0/03 8 50-50 - <0.0. 85624 Perylene 205/2/3 72 60-60 - 85624 Phenanthrene 206/0/03 60-60 - 85624 Pyrene 206/0/03 04 60-60 - 85624 Quinoline 206/0/03 99 50-50 - <0.24 856243 EPH (C0-C9) 205/2/3 76 50-8 50 - <0.20 3.0 856243 EPH (C9-C32) 205/2/3 50-96 50 - <0.20 85993 2,4,5-T 206/0/06 0-85993 2,4,5-TP 206/0/06 0-85993 2,4-D 206/0/06 9 0-85993 2,4-DB 206/0/06 87 0-85993 3,5-dichlorobenzoic acid 206/0/06 0-85993 Bentazon 206/0/06 0-85993 Bromoxynil 206/0/06 06 0-85993 Chloramben 206/0/06 42 0-85993 Dicamba 206/0/06 0 - <0.0050 85993 Dichlorprop 206/0/06 0 - Page 2 of 4

Maxxam Job #: B5B343 QUALITY ASSURAE REPORT(CONT'D) QC Batch 85993 85993 85993 85993 85993 85993 Parameter Diclofop-methyl Dinoseb (DNBP) MCPA MCPP Pentachlorophenol Picloram N/A = Not Applicable Date 206/0/06 206/0/06 206/0/06 206/0/06 206/0/06 206/0/06 Recovery Matrix Spike Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. Recovery 43 Spiked Blank Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. 8 87 9 0-0 - 0-0 - 0-0 - Method Blank Spiked Blank: A blank matrix sample to which a known amount of the analyte, usually from a second source, has been added. Used to evaluate method accuracy. Method Blank: A blank matrix containing all reagents used in the analytical procedure. Used to identify laboratory contamination. Surrogate: A pure or isotopically labeled compound whose behavior mirrors the analytes of interest. Used to evaluate extraction efficiency. (Matrix Spike): The recovery in the matrix spike was not calculated. The relative difference between the concentration in the parent sample and the spiked amount was too small to permit a reliable recovery calculation (matrix spike concentration was less than 2x that of the native sample concentration). () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. 28 Value Value () (Duplicate RPD): The duplicate RPD was not calculated. The concentration in the sample and/or duplicate was too low to permit a reliable RPD calculation (one or both samples < 5x RDL). RPD Page 3 of 4

Maxxam Job #: B5B343 VALIDATION SIGNATURE PAGE The analytical data and all QC contained in this report were reviewed and validated by the following individual(s). Andy Lu, Data Validation Coordinator Veronica Falk, Scientific Specialist Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5.0.2 of ISO/IEC 7025:2005(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Page 4 of 4

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