CERTIFICATE OF ANALYSIS

Transcription

1 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELL Your C.O.C. #: Report Date: 5/04/2 Report #: R Version: - Final MAXXAM JOB #: B56683 Received: 5/04/08, 6:43 Sample Matrix: Water # Samples Received: 2 Analyses Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid (, 2) Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) (3) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water (4) Nitrate (NO3) and Nitrite (NO2) in Water (4) Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/7 CAM SOP-00 5/04/4 5/04/5 CAM SOP-00 5/04/4 5/04/6 CAM SOP-00 5/04/09 5/04/ SLA SOP /04/09 CAM SOP /04/0 CAM SOP-0002 CAM SOP /04/0 CAM SOP /04/09 CAM SOP /04/09 CAM SOP /04/0 CAM SOP /04/0 CAM SOP /04/4 CAM SOP /04/4 5/04/5 CAM SOP /04/09 5/04/09 CAM SOP CAM SOP 0002/00408/ /04/4 CAM SOP /04/4 5/04/4 CAM SOP /04/0 CAM SOP /04/5 CAM SOP-0044 CAM SOP /04/5 CAM SOP /04/09 5/04/0 CAM SOP-009 5/04/09 CAM SOP /04/0 CAM SOP /04/0 CAM SOP Reference EPA 8270D m EPA 8270 m EPA 8270 m APHA SM230B (Mod) SM B m APHA 4500-CO2 D EPA 8260C m EPA m SM m EPA 799 m OMOE E5 m SM B m CCME PHC-CWS m CCME PHC-CWS m SM F C m SM 2340 B EPA 7470A m EPA 7470A m EPA 60A m EPA GS I m SM NO3I/NO2B SM NO3I/NO2B EPA 8082A m SM 4500H+ B m EPA 365. m EPA m Page of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

2 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELL Your C.O.C. #: Report Date: 5/04/2 Report #: R Version: - Final MAXXAM JOB #: B56683 Received: 5/04/08, 6:43 Sample Matrix: Water # Samples Received: 2 Analyses Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) (5) Total Suspended Solids Turbidity Volatile Organic Compounds in Water CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/ CAM SOP /04/0 CAM SOP /04/0 CAM SOP /04/09 CAM SOP /04/0 CAM SOP Reference SM C m SM B m SM D m SM 22 2 B m EPA 8260C m Remarks: Maxxam Analytics has performed all analytical testing herein in accordance with ISO 7025 and the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. All methodologies comply with this document and are validated for use in the laboratory. The methods and techniques employed in this analysis conform to the performance criteria (detection limits, accuracy and precision) as outlined in the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. The CWS PHC methods employed by Maxxam conform to all prescribed elements of the reference method and performance based elements have been validated. All modifications have been validated and proven equivalent following the 'Alberta Environment Draft Addenda to the CWS-PHC, Appendix 6, Validation of Alternate Methods'. Documentation is available upon request. Maxxam has made the following improvements to the CWS-PHC reference benchmark method: (i) Headspace for F; and, (ii) Mechanical extraction for F2-F4. Note: F4G cannot be added to the C6 to C50 hydrocarbons. The extraction date for samples field preserved with methanol for F and Volatile Organic Compounds is considered to be the date sampled. Maxxam Analytics is accredited for all specific parameters as required by Ontario Regulation 53/04. Maxxam Analytics is limited in liability to the actual cost of analysis unless otherwise agreed in writing. There is no other warranty expressed or implied. Samples will be retained at Maxxam Analytics for three weeks from receipt of data or as per contract. 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 Sladeview Petrochemical (2) Sample(s) analyzed using methodologies that have not been subjected to Maxxam's standard validation process for the submitted matrix and is not an Accredited method. Analysis performed with client consent, however results should be viewed with discretion (3) Dissolved Organic Carbon (DOC) present in the sample should be considered as non-purgeable DOC. (4) Values for calculated parameters may not appear to add up due to rounding of raw data and significant figures. (5) Total Organic Carbon (TOC) present in the sample should be considered as non-purgeable TOC. Page 2 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

3 MAXXAM JOB #: B56683 Received: 5/04/08, 6:43 Attention:Lesley Veale, Brant Gill, ON Canada CERTIFICE OF ANALYSIS Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELL Your C.O.C. #: Report Date: 5/04/2 Report #: R Version: - Final Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Krystal Seedial, Project Manager KSeedial@maxxam.ca Phone# (905) ==================================================================== Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Total Cover Pages : 3 Page 3 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

4 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR ABP939 5/04/07 3: WG RD0 ABP94 5/04/08 0: ABP94 5/04/08 0: WG WG RD RD02 Lab-Dup Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) me/l me/l umho/cm = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate = Not Applicable ph < < < < < < < Page 4 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

5 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP939 5/04/07 3: WG RD0 < < < < < < ABP94 5/04/08 0: < < < < <0.000 ABP94 5/04/08 0: WG WG RD RD02 Lab-Dup < < < < < Page 5 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

6 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR ABP943 5/04/08 0: ABP943 5/04/08 0: WG WG RD RD03 Lab-Dup ABP945 5/04/08 3: WG RD04 Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) me/l me/l umho/cm = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate = Not Applicable ph < < < < < < Page 6 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

7 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP943 5/04/08 0: < < < < < < <0.000 ABP943 5/04/08 0: WG WG RD RD03 Lab-Dup ABP945 5/04/08 3: WG RD04 < < < < < < < Page 7 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

8 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR ABP945 5/04/08 3: WG RD04 Lab-Dup ABP947 5/04/08 3: WG RD05 Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) me/l me/l umho/cm = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate = Not Applicable ph < Page 8 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

9 Maxxam Job #: B56683 Report Date: 5/04/2 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP945 5/04/08 3: WG RD04 Lab-Dup ABP947 5/04/08 3: WG RD05 < < < <0.00 < < < < Page 9 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

10 Maxxam Job #: B56683 Report Date: 5/04/2 RESULTS OF ANALYSES OF WER Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Inorganics Acidity as CaC03 Total Dissolved Solids Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP939 5/04/07 3: WG RD0 < < ABP94 5/04/08 0: WG RD < ABP943 5/04/08 0: WG RD <2 2.0 <0 3.4 ABP943 5/04/08 0: WG RD03 Lab-Dup ABP945 5/04/08 3: WG RD < Inorganics Acidity as CaC03 Total Dissolved Solids Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP947 5/04/08 3: WG WG RD RD05 Lab-Dup < < ABP947 5/04/08 3: < Page 0 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

11 Maxxam Job #: B56683 Report Date: 5/04/2 ELEMENTS BY OMIC SPECTROSCOPY (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP939 5/04/07 3: WG RD0 < ABP94 5/04/08 0: WG RD02 < ABP94 5/04/08 0: WG RD02 Lab-Dup < ABP943 5/04/08 0: WG RD03 < Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch ABP945 5/04/08 3: WG RD < WG RD ABP947 5/04/08 3: < Page of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

12 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 PCBS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR PCBs Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Surrogate Recovery () Decachlorobiphenyl = Reportable Detection Limit = Quality Control Batch ABP939 5/04/07 3: WG RD0 9 ABP94 5/04/08 0: WG RD02 90 ABP943 5/04/08 0: WG RD03 96 ABP945 5/04/08 3: WG RD04 90 ABP947 5/04/08 3: WG RD Page 2 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

13 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABP939 5/04/07 3: WG RD0 <25 <25 <00 <0 <0 Yes ABP939 5/04/07 3: WG RD0 Lab-Dup <25 < ABP94 5/04/08 0: WG RD02 <25 <25 <00 <0 <0 Yes ABP94 5/04/08 0: WG RD02 Lab-Dup <00 <0 <0 Yes 93 ABP943 5/04/08 0: WG RD03 <25 <25 <00 <0 <0 Yes Page 3 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

14 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch ABP945 5/04/08 3: <25 <25 <00 <0 <0 Yes ABP947 5/04/08 3: WG WG RD RD05 <25 <25 <00 <0 <0 Yes Page 4 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

15 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene = Reportable Detection Limit = Quality Control Batch ABP939 5/04/07 3: WG RD0 <2 <0.0 4 ABP940 5/04/07 3: WG RD0A <2 <0.0 2 ABP94 5/04/08 0: WG RD02 <2 <0.0 2 ABP942 5/04/08 0: WG RD02A <2 <0.0 < Page 5 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

16 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABP939 5/04/07 3: WG RD0 < ABP940 5/04/07 3: WG RD0A 8 = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 24 () 58 ABP94 5/04/08 0: WG RD02 < ABP942 5/04/08 0: WG RD02A < () Page 6 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

17 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene = Reportable Detection Limit = Quality Control Batch ABP943 5/04/08 0: WG RD03 <2 <0.0 < ABP944 5/04/08 0: WG RD03A <2 <0.0 < ABP945 5/04/08 3: WG RD04 <2 <0.0 < ABP946 5/04/08 3: WG RD04A <2 <0.0 < Page 7 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

18 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABP943 5/04/08 0: WG RD03 < () ABP944 5/04/08 0: WG RD03A 8 = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 68 ABP945 5/04/08 3: WG RD04 < () 83 5 ABP946 5/04/08 3: WG RD04A < () Page 8 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

19 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene ABP947 5/04/08 3: WG RD05 <2 <0.0 < ABP948 5/04/08 3: WG RD05A = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. <2 <0.0 < ABQ03 5/04/ FILTERED BLANK <2 <0.0 < ABQ04 5/04/ FILTERED SPIKE () 7 () 0 () 2 () 0 () 0 () () 2 () 9 () Page 9 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

20 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABP947 5/04/08 3: WG RD05 < ABP948 5/04/08 3: WG RD05A 8 = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 76 ABQ03 5/04/ FILTERED BLANK < () ABQ04 5/04/ FILTERED SPIKE 9 () () () Page of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

21 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Calculated Parameters,3-Dichloropropene (cis+trans) Volatile Organics Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform Dibromochloromethane,2-Dichlorobenzene,3-Dichlorobenzene,4-Dichlorobenzene Dichlorodifluoromethane (FREON 2),-Dichloroethane,2-Dichloroethane,-Dichloroethylene cis-,2-dichloroethylene trans-,2-dichloroethylene,2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Ethylbenzene Ethylene Dibromide Hexane Methylene Chloride(Dichloromethane) Methyl Isobutyl Ketone Methyl Ethyl Ketone (2-Butanone) Methyl t-butyl ether (MTBE) Styrene,,,2-Tetrachloroethane = Reportable Detection Limit = Quality Control Batch ABP939 5/04/07 3: WG RD0 <0 < <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABP94 5/04/08 0: WG RD02 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABP943 5/04/08 0: WG RD03 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABP945 5/04/08 3: WG RD04 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABP947 5/04/08 3: WG RD05 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 < Page 2 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

22 Maxxam Job #: B56683 Report Date: 5/04/2 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR,,2,2-Tetrachloroethane Tetrachloroethylene Toluene,,-Trichloroethane,,2-Trichloroethane Trichloroethylene Vinyl Chloride p+m-xylene o-xylene Total Xylenes Trichlorofluoromethane (FREON ) Surrogate Recovery () 4-Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene = Reportable Detection Limit = Quality Control Batch ABP939 5/04/07 3: WG RD ABP94 5/04/08 0: WG RD ABP943 5/04/08 0: WG RD ABP945 5/04/08 3: WG RD ABP947 5/04/08 3: WG RD Page 22 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

23 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP939 Collected: 5/04/07 Sample ID: WG RD0 Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/4 5/04/09 5/04/4 5/04/09 5/04/09 Date Analyzed 5/04/7 5/04/6 5/04/ 5/04/09 5/04/0 5/04/0 5/04/09 5/04/09 5/04/0 5/04/0 5/04/4 5/04/5 5/04/09 5/04/4 5/04/0 5/04/5 5/04/0 5/04/09 5/04/0 5/04/0 5/04/ 5/04/0 5/04/0 5/04/09 5/04/0 Analyst Milijana Avramovic Grace Sison Yogesh Patel Deonarine Ramnarine Yogesh Patel Sally Coughlin Xuanhong Qiu Elsamma Alex Yang Yu Jolanta Kawzowicz Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Li Peng Yogesh Patel Alina Dobreanu Deonarine Ramnarine Gurpreet Kaur Elsamma Alex Bansari Ray Lemeneh Addis Karen Hughes : ABP939 Dup Collected: 5/04/07 Sample ID: WG RD0 Shipped: Matrix: Water Received: 5/04/08 Test Description Petroleum Hydro. CCME F & BTEX in Water Instrumentation HSGC/MSFD Batch Extracted Date Analyzed 5/04/4 Analyst Yang Yu Page 23 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

24 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP940 Collected: 5/04/07 Sample ID: WG RD0A Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/6 Analyst Milijana Avramovic : ABP94 Collected: 5/04/08 Sample ID: WG RD02 Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/4 5/04/09 5/04/4 5/04/09 5/04/09 Date Analyzed 5/04/7 5/04/6 5/04/ 5/04/09 5/04/0 5/04/0 5/04/09 5/04/09 5/04/0 5/04/0 5/04/4 5/04/5 5/04/09 5/04/4 5/04/0 5/04/5 5/04/5 5/04/0 5/04/09 5/04/0 5/04/0 5/04/ 5/04/0 5/04/0 5/04/09 5/04/0 Analyst Milijana Avramovic Grace Sison Yogesh Patel Deonarine Ramnarine Yogesh Patel Sally Coughlin Xuanhong Qiu Elsamma Alex Yang Yu Jolanta Kawzowicz Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Li Peng Yogesh Patel Alina Dobreanu Deonarine Ramnarine Gurpreet Kaur Elsamma Alex Bansari Ray Lemeneh Addis Karen Hughes Page 24 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

25 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP94 Dup Collected: 5/04/08 Sample ID: WG RD02 Shipped: Matrix: Water Received: 5/04/08 Test Description Petroleum Hydrocarbons F2-F4 in Water Mercury in Water by CVAA Dissolved Metals by ICPMS Instrumentation GC/FID CV/AA ICP/MS Batch Extracted 5/04/4 Date Analyzed 5/04/5 5/04/4 5/04/0 Analyst Jolanta Kawzowicz Magdalena Carlos Arefa Dabhad : ABP942 Collected: 5/04/08 Sample ID: WG RD02A Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/6 Analyst Milijana Avramovic : ABP943 Collected: 5/04/08 Sample ID: WG RD03 Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE Batch Extracted 5/04/4 5/04/09 5/04/4 5/04/09 5/04/4 5/04/09 Date Analyzed 5/04/7 5/04/6 5/04/ 5/04/09 5/04/0 5/04/0 5/04/09 5/04/09 5/04/0 5/04/0 5/04/4 5/04/5 5/04/09 5/04/4 5/04/0 5/04/5 5/04/0 5/04/09 5/04/0 Analyst Milijana Avramovic Grace Sison Yogesh Patel Deonarine Ramnarine Yogesh Patel Sally Coughlin Xuanhong Qiu Elsamma Alex Yang Yu Jolanta Kawzowicz Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Li Peng Yogesh Patel Alina Dobreanu Page 25 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

26 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP943 Collected: 5/04/08 Sample ID: WG RD03 Shipped: Matrix: Water Received: 5/04/08 Test Description Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted Date Analyzed 5/04/0 5/04/ 5/04/0 5/04/0 5/04/09 5/04/0 Analyst Deonarine Ramnarine Gurpreet Kaur Elsamma Alex Bansari Ray Lemeneh Addis Karen Hughes : ABP943 Dup Collected: 5/04/08 Sample ID: WG RD03 Shipped: Matrix: Water Received: 5/04/08 Test Description Alkalinity Chloride by Automated Colourimetry Conductivity Fluoride Nitrate (NO3) and Nitrite (NO2) in Water ph Orthophosphate Sulphate by Automated Colourimetry Turbidity Instrumentation KONE ISE LACH KONE KONE Batch Extracted 5/04/09 Date Analyzed 5/04/09 5/04/0 5/04/09 5/04/09 5/04/09 5/04/0 5/04/0 5/04/09 Analyst Yogesh Patel Deonarine Ramnarine Yogesh Patel Yogesh Patel Chandra Nandlal Yogesh Patel Alina Dobreanu Deonarine Ramnarine Lemeneh Addis : ABP944 Collected: 5/04/08 Sample ID: WG RD03A Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/6 Analyst Milijana Avramovic Test Description : ABP945 Collected: 5/04/08 Sample ID: WG RD04 Shipped: Matrix: Water Received: 5/04/08 Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Instrumentation GC/MS KONE Batch Page 26 of 38 Extracted 5/04/4 5/04/09 Date Analyzed 5/04/7 5/04/6 5/04/ 5/04/09 5/04/0 5/04/0 5/04/09 Analyst Milijana Avramovic Grace Sison Yogesh Patel Deonarine Ramnarine Yogesh Patel Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

27 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP945 Collected: 5/04/08 Sample ID: WG RD04 Shipped: Matrix: Water Received: 5/04/08 Test Description Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/4 5/04/09 5/04/4 5/04/09 Date Analyzed 5/04/09 5/04/0 5/04/0 5/04/4 5/04/5 5/04/09 5/04/4 5/04/0 5/04/5 5/04/5 5/04/0 5/04/09 5/04/0 5/04/0 5/04/ 5/04/0 5/04/0 5/04/09 5/04/0 Analyst Sally Coughlin Xuanhong Qiu Elsamma Alex Yang Yu Jolanta Kawzowicz Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Li Peng Yogesh Patel Alina Dobreanu Deonarine Ramnarine Gurpreet Kaur Elsamma Alex Bansari Ray Lemeneh Addis Karen Hughes : ABP945 Dup Collected: 5/04/08 Sample ID: WG RD04 Shipped: Matrix: Water Received: 5/04/08 Test Description Total Ammonia-N Instrumentation LACH/NH4 Batch Extracted Date Analyzed 5/04/5 Analyst Charles Opoku-Ware : ABP946 Collected: 5/04/08 Sample ID: WG RD04A Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/6 Analyst Milijana Avramovic Page 27 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

28 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP947 Collected: 5/04/08 Sample ID: WG RD05 Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/4 5/04/09 5/04/4 5/04/09 5/04/09 Date Analyzed 5/04/7 5/04/6 5/04/ 5/04/09 5/04/0 5/04/0 5/04/09 5/04/09 5/04/0 5/04/0 5/04/4 5/04/5 5/04/09 5/04/4 5/04/0 5/04/5 5/04/5 5/04/0 5/04/09 5/04/0 5/04/0 5/04/ 5/04/0 5/04/0 5/04/09 5/04/0 Analyst Milijana Avramovic Grace Sison Yogesh Patel Deonarine Ramnarine Yogesh Patel Sally Coughlin Xuanhong Qiu Elsamma Alex Yang Yu Jolanta Kawzowicz Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Li Peng Yogesh Patel Alina Dobreanu Deonarine Ramnarine Gurpreet Kaur Elsamma Alex Bansari Ray Lemeneh Addis Karen Hughes : ABP947 Dup Collected: 5/04/08 Sample ID: WG RD05 Shipped: Matrix: Water Received: 5/04/08 Test Description Acidity as CaC03 in liquid Instrumentation Batch Extracted 5/04/09 Date Analyzed 5/04/ Analyst Grace Sison Page 28 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

29 Maxxam Job #: B56683 Report Date: 5/04/2 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR : ABP948 Collected: 5/04/08 Sample ID: WG RD05A Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/6 Analyst Milijana Avramovic : ABQ03 Collected: 5/04/07 Sample ID: FILTERED BLANK Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/5 Analyst Milijana Avramovic : ABQ04 Collected: 5/04/07 Sample ID: FILTERED SPIKE Shipped: Matrix: Water Received: 5/04/08 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/4 Date Analyzed 5/04/7 5/04/5 Analyst Milijana Avramovic Page 29 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

30 Maxxam Job #: B56683 Report Date: 5/04/2 Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR GENERAL COMMENTS Sample ABQ04-0 : ABN analysis:data are reported as percentage recoveries. Results relate only to the items tested. Page of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

31 Maxxam Job #: B56683 Report Date: 5/04/2 QUALITY ASSURAE REPORT Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Matrix Spike Spiked Blank Method Blank RPD QC Standard Parameter Date Recovery QC Limits Recovery QC Limits Value Value () QC Limits Recovery QC Limits Decachlorobiphenyl 5/04/ Bromofluorobenzene 5/04/ D4-,2-Dichloroethane 5/04/ D8-Toluene 5/04/ ,4-Difluorobenzene 5/04/ Bromofluorobenzene 5/04/ D0-Ethylbenzene 5/04/ D4-,2-Dichloroethane 5/04/ ,4,6-Tribromophenol 5/04/ Fluorobiphenyl 5/04/ D4-Terphenyl (FS) 5/04/ D5-Nitrobenzene 5/04/ o-terphenyl 5/04/ Nitrate (N) Nitrite (N) < Turbidity 5/04/ NTU Aroclor 242 5/04/ Aroclor 248 5/04/ Aroclor 254 5/04/ Aroclor 260 5/04/ Total PCB 5/04/ Fluoride (F-) Conductivity Alkalinity (Total as CaCO3) 5/04/09 5/04/09 5/04/ <.0 <.0 umho/c m ph 5/04/ Chromium (VI) 5/04/ ,,,2-Tetrachloroethane 5/04/ ,,-Trichloroethane 5/04/ ,,2,2-Tetrachloroethane 5/04/ ,,2-Trichloroethane 5/04/ Page 3 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

32 Maxxam Job #: B56683 Report Date: 5/04/ Parameter,-Dichloroethane,-Dichloroethylene,2-Dichlorobenzene,2-Dichloroethane,2-Dichloropropane,3-Dichlorobenzene,4-Dichlorobenzene Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform cis-,2-dichloroethylene cis-,3-dichloropropene Dibromochloromethane Dichlorodifluoromethane (FREON 2) Ethylbenzene Ethylene Dibromide Hexane Methyl Ethyl Ketone (2-Butanone) Methyl Isobutyl Ketone Methyl t-butyl ether (MTBE) Methylene Chloride(Dichloromethane) o-xylene p+m-xylene Styrene Tetrachloroethylene Toluene QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Method Blank <0 <.0 <0. <.0 <.0 <0 <5.0 <2.0 Value () RPD QC Limits QC Standard Recovery QC Limits Page 32 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

33 Maxxam Job #: B56683 Report Date: 5/04/ Parameter Total Xylenes trans-,2-dichloroethylene trans-,3-dichloropropene Trichloroethylene Trichlorofluoromethane (FREON ) Vinyl Chloride Nitrate (N) Nitrite (N) Acidity as CaC03 Total Organic Carbon (TOC) Free Cyanide Dissolved Organic Carbon Dissolved Chloride (Cl) Orthophosphate (P) Dissolved Sulphate (SO4) Total Suspended Solids Total Dissolved Solids Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/0 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ 5/04/ /04/ /04/ /04/ /04/ /04/ /04/0 5/04/ 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Method Blank < <0.00 <0 <2 < <0.00 < <0 <0 <0.000 <0.00 <0.00 < < Value () RPD QC Limits QC Standard Recovery QC Limits Page 33 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

34 Maxxam Job #: B56683 Report Date: 5/04/ Parameter Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) Total Ammonia-N Mercury (Hg) F (C6-C0) - BTEX F (C6-C0),2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/4 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Method Blank <0.00 < < < <0.000 < < < < <25 <25 <2 Value () RPD QC Limits QC Standard Recovery QC Limits Page 34 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

35 Maxxam Job #: B56683 Report Date: 5/04/ Parameter 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Mercury (Hg) F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Method Blank <0.0 < < < <00 <0 Value () RPD QC Limits QC Standard Recovery QC Limits Page 35 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

36 Maxxam Job #: B56683 Report Date: 5/04/ Parameter = Not Applicable F4 (C34-C50 Hydrocarbons) Date 5/04/5 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Recovery QC Limits 50 - Spiked Blank Recovery Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. QC Limits 60 - Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR Method Blank QC Standard: A sample of known concentration prepared by an external agency under stringent conditions. Used as an independent check of method accuracy. 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 <0 Value () RPD QC Limits QC Standard Recovery (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). (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 ). QC Limits Page 36 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

37 Maxxam Job #: B56683 Report Date: 5/04/2 Client Project #: Site Location: CLARINGTON TS-MONITORING WELL Your P.O. #: 6400NR VALIDION SIGNURE PAGE The analytical data and all QC contained in this report were reviewed and validated by the following individual(s). Brad Newman, Scientific Specialist Cristina Carriere, Scientific Services Ewa Pranjic, M.Sc., C.Chem, Scientific Specialist Grace Sison, B.Sc., C.Chem, Senior Project Manager - Petroleum Division Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Page 37 of 38 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

38 Page 38 of 38

39 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B56274 Received: 5/04/09, 8:0 Sample Matrix: Water # Samples Received: 8 Analyses Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid (, 2) Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) (3) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water (4) Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sat. ph and Langelier Index (@ 4C) CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/2 CAM SOP-00 5/04/2 5/04/22 CAM SOP-00 5/04/ SLA SOP /04/7 CAM SOP CAM SOP /04/4 CAM SOP /04/5 CAM SOP /04/23 CAM SOP /04/7 CAM SOP-0044 CAM SOP /04/6 CAM SOP /04/0 CAM SOP CAM SOP /04/5 5/04/6 CAM SOP /04/0 5/04/ CAM SOP /04/4 CAM SOP 0002/00408/ /04/6 5/04/6 CAM SOP /04/4 CAM SOP /04/5 5/04/6 5/04/4 5/04/4 CAM SOP /04/6 CAM SOP /04/ 5/04/ CAM SOP-009 5/04/ CAM SOP-0043 CAM SOP /04/5 5/04/6 5/04/5 5/04/6 Reference EPA 8270D m EPA 8270 m APHA SM230B (Mod) SM B m APHA 4500-CO2 D EPA 8260C m EPA m EPA m SM m EPA 799 m OMOE E5 m SM B m CCME PHC-CWS m CCME PHC-CWS m SM F C m SM 2340 B EPA 7470A m EPA 60A m EPA GS I m SM NO3I/NO2B EPA 8082A m SM 4500H+ B m EPA 365. m Page of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

40 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B56274 Received: 5/04/09, 8:0 Sample Matrix: Water # Samples Received: 8 Analyses Sulphate by Automated Colourimetry Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) (5) Total Suspended Solids Turbidity Volatile Organic Compounds in Water CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method CAM SOP /04/23 CAM SOP /04/5 5/04/6 CAM SOP CAM SOP /04/ CAM SOP /04/ CAM SOP-0047 CAM SOP Reference EPA m EPA m SM C m SM B m SM D m SM 22 2 B m EPA 8260C m Remarks: Maxxam Analytics has performed all analytical testing herein in accordance with ISO 7025 and the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. All methodologies comply with this document and are validated for use in the laboratory. The methods and techniques employed in this analysis conform to the performance criteria (detection limits, accuracy and precision) as outlined in the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. The CWS PHC methods employed by Maxxam conform to all prescribed elements of the reference method and performance based elements have been validated. All modifications have been validated and proven equivalent following the 'Alberta Environment Draft Addenda to the CWS-PHC, Appendix 6, Validation of Alternate Methods'. Documentation is available upon request. Maxxam has made the following improvements to the CWS-PHC reference benchmark method: (i) Headspace for F; and, (ii) Mechanical extraction for F2-F4. Note: F4G cannot be added to the C6 to C50 hydrocarbons. The extraction date for samples field preserved with methanol for F and Volatile Organic Compounds is considered to be the date sampled. Maxxam Analytics is accredited for all specific parameters as required by Ontario Regulation 53/04. Maxxam Analytics is limited in liability to the actual cost of analysis unless otherwise agreed in writing. There is no other warranty expressed or implied. Samples will be retained at Maxxam Analytics for three weeks from receipt of data or as per contract. 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 Sladeview Petrochemical (2) Sample(s) analyzed using methodologies that have not been subjected to Maxxam's standard validation process for the submitted matrix and is not an Accredited method. Analysis performed with client consent, however results should be viewed with discretion (3) Dissolved Organic Carbon (DOC) present in the sample should be considered as non-purgeable DOC. (4) Values for calculated parameters may not appear to add up due to rounding of raw data and significant figures. (5) Total Organic Carbon (TOC) present in the sample should be considered as non-purgeable TOC. Page 2 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

41 MAXXAM JOB #: B56274 Received: 5/04/09, 8:0 Attention:Lesley Veale, Brant Gill, ON Canada CERTIFICE OF ANALYSIS Your P.O. #: 6400NR Your Project #: Site#: GW MONITORING WELLS Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Krystal Seedial, Project Manager KSeedial@maxxam.ca Phone# (905) ==================================================================== Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Total Cover Pages : 3 Page 3 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

42 Maxxam Job #: B56274 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) me/l me/l = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate = Not Applicable umho/cm ph ABU945 5/04/09 0: WG RD < < < <0.00 ABU945 5/04/09 0: WG RD06 Lab-Dup ABU947 5/04/09 0: WG RD < < < ABU947 5/04/09 0: WG RD07 Lab-Dup Page 4 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

43 Maxxam Job #: B56274 Report Date: 5/04/23 Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate RCAP - COMPREHENSIVE (WER) ABU945 5/04/09 0: WG RD06 < < < < < < <0.000 ABU945 5/04/09 0: WG RD06 Lab-Dup Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABU947 5/04/09 0: WG RD07 < < < < < < < ABU947 5/04/09 0: WG RD07 Lab-Dup Page 5 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

44 Maxxam Job #: B56274 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABU949 5/04/09 5: WG RD09 Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) = Reportable Detection Limit = Quality Control Batch = Not Applicable me/l me/l umho/cm ph < < Page 6 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

45 Maxxam Job #: B56274 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABU949 5/04/09 5: WG RD09 Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch 6.6 < < < < < < Page 7 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

46 Maxxam Job #: B56274 Report Date: 5/04/23 RESULTS OF ANALYSES OF WER Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Inorganics Acidity as CaC03 Total Dissolved Solids Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABU945 5/04/09 0: WG RD06 < < ABU947 5/04/09 0: WG RD < ABU947 5/04/09 0: WG RD07 Lab-Dup 0 ABU949 5/04/09 5: WG RD09 < < Page 8 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

47 Maxxam Job #: B56274 Report Date: 5/04/23 ELEMENTS BY OMIC SPECTROSCOPY (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABU945 5/04/09 0: WG RD06 < ABU947 5/04/09 0: WG RD07 < ABU947 5/04/09 0: WG RD07 Lab-Dup < ABU949 5/04/09 5: WG RD09 < Page 9 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

48 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 PCBS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR PCBs Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Surrogate Recovery () Decachlorobiphenyl = Reportable Detection Limit = Quality Control Batch ABU945 5/04/09 0: WG RD06 95 ABU947 5/04/09 0: WG RD07 96 ABU949 5/04/09 5: WG RD Page 0 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

49 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch ABU945 5/04/09 0: WG RD06 <25 <25 <00 <0 <0 Yes ABU947 5/04/09 0: WG RD07 <25 <25 <00 <0 <0 Yes ABU949 5/04/09 5: WG RD09 <25 <25 <00 <0 <0 Yes Page of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

50 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABU945 5/04/09 0: WG RD06 ABU946 5/04/09 0: WG RD06A ABU947 5/04/09 0: WG RD07 ABU948 5/04/09 0: WG RD07A Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene = Reportable Detection Limit = Quality Control Batch <0.4 <0.4 <0.4 < <4 <0.4 < <0.4 <0.4 <0.02 < < <2 <0.4 <0.4 < <2 <0.0 < 0. <2 <0.0 < <2 <0.0 < Page 2 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

51 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABU945 5/04/09 0: WG RD06 <2 < ABU946 5/04/09 0: WG RD06A = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 78 ABU947 5/04/09 0: WG RD07 < ABU948 5/04/09 0: WG RD07A < () Page 3 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

52 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene ABU949 5/04/09 5: WG RD09 <2 <0.0 < ABU950 5/04/09 5: WG RD09A = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. <2 <0.0 < 5.2 ABX083 5/04/09 5: FILTERED BLANK <2 <0.0 < ABX084 5/04/09 5: FILTERED SPIKE () 8 () 7 () 7 () 2 () 7 () () 7 () 3 () () 59 Page 4 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

53 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABU949 5/04/09 5: WG RD09 < () ABU950 5/04/09 5: WG RD09A () = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < ABX083 5/04/09 5: FILTERED BLANK < () ABX084 5/04/09 5: FILTERED SPIKE 3 () () () () Page 5 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

54 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Calculated Parameters,3-Dichloropropene (cis+trans) Volatile Organics Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform Dibromochloromethane,2-Dichlorobenzene,3-Dichlorobenzene,4-Dichlorobenzene Dichlorodifluoromethane (FREON 2),-Dichloroethane,2-Dichloroethane,-Dichloroethylene cis-,2-dichloroethylene trans-,2-dichloroethylene,2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Ethylbenzene Ethylene Dibromide Hexane Methylene Chloride(Dichloromethane) Methyl Isobutyl Ketone Methyl Ethyl Ketone (2-Butanone) Methyl t-butyl ether (MTBE) Styrene,,,2-Tetrachloroethane = Reportable Detection Limit = Quality Control Batch ABU945 5/04/09 0: WG RD06 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABU947 5/04/09 0: WG RD07 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ABU949 5/04/09 5: WG RD09 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 < Page 6 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

55 Maxxam Job #: B56274 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR,,2,2-Tetrachloroethane Tetrachloroethylene Toluene,,-Trichloroethane,,2-Trichloroethane Trichloroethylene Vinyl Chloride p+m-xylene o-xylene Total Xylenes Trichlorofluoromethane (FREON ) Surrogate Recovery () 4-Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene = Reportable Detection Limit = Quality Control Batch ABU945 5/04/09 0: WG RD ABU947 5/04/09 0: WG RD ABU949 5/04/09 5: WG RD Page 7 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

56 Maxxam Job #: B56274 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABU945 Collected: 5/04/09 Sample ID: WG RD06 Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/2 5/04/5 5/04/0 5/04/6 5/04/ Date Analyzed 5/04/2 5/04/22 5/04/ 5/04/7 5/04/4 5/04/5 5/04/7 5/04/6 5/04/0 5/04/6 5/04/ 5/04/4 5/04/6 5/04/4 5/04/6 5/04/4 5/04/4 5/04/6 5/04/ 5/04/ 5/04/6 5/04/6 5/04/6 5/04/ 5/04/ Analyst Milijana Avramovic Grace Sison Surinder Rai Deonarine Ramnarine Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Georgeta Rusu Zhiyue (Frank) Zhu Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Sarah Huang Yogesh Patel Alina Dobreanu Alina Dobreanu Gurpreet Kaur Elsamma Alex Subhashchandra Patel Lemeneh Addis Karen Hughes : ABU945 Dup Collected: 5/04/09 Sample ID: WG RD06 Shipped: Matrix: Water Received: 5/04/09 Test Description Alkalinity Conductivity Instrumentation Batch Extracted Date Analyzed 5/04/7 5/04/7 Analyst Surinder Rai Surinder Rai Page 8 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

57 Maxxam Job #: B56274 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABU946 Collected: 5/04/09 Sample ID: WG RD06A Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic : ABU947 Collected: 5/04/09 Sample ID: WG RD07 Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/2 5/04/5 5/04/0 5/04/6 5/04/ Date Analyzed 5/04/2 5/04/22 5/04/ 5/04/7 5/04/4 5/04/5 5/04/7 5/04/6 5/04/0 5/04/6 5/04/ 5/04/4 5/04/6 5/04/4 5/04/6 5/04/4 5/04/4 5/04/6 5/04/ 5/04/ 5/04/6 5/04/6 5/04/6 5/04/ 5/04/ Analyst Milijana Avramovic Grace Sison Surinder Rai Deonarine Ramnarine Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Georgeta Rusu Zhiyue (Frank) Zhu Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Sarah Huang Yogesh Patel Alina Dobreanu Alina Dobreanu Gurpreet Kaur Elsamma Alex Subhashchandra Patel Lemeneh Addis Karen Hughes Page 9 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

58 Maxxam Job #: B56274 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABU947 Dup Collected: 5/04/09 Sample ID: WG RD07 Shipped: Matrix: Water Received: 5/04/09 Test Description Fluoride Mercury in Water by CVAA ph Instrumentation ISE CV/AA Batch Extracted 5/04/0 5/04/6 Date Analyzed 5/04/ 5/04/6 5/04/ Analyst Yogesh Patel Magdalena Carlos Yogesh Patel : ABU948 Collected: 5/04/09 Sample ID: WG RD07A Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic : ABU949 Collected: 5/04/09 Sample ID: WG RD09 Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE Batch Extracted 5/04/2 5/04/5 5/04/0 5/04/6 5/04/ Date Analyzed 5/04/2 5/04/22 5/04/ 5/04/7 5/04/4 5/04/23 5/04/7 5/04/6 5/04/0 5/04/6 5/04/ 5/04/4 5/04/6 5/04/4 5/04/5 5/04/4 5/04/4 5/04/6 5/04/ 5/04/ 5/04/5 5/04/5 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Georgeta Rusu Zhiyue (Frank) Zhu Yogesh Patel Magdalena Carlos Arefa Dabhad Charles Opoku-Ware Chandra Nandlal Sarah Huang Yogesh Patel Alina Dobreanu Page of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

59 Maxxam Job #: B56274 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABU949 Collected: 5/04/09 Sample ID: WG RD09 Shipped: Matrix: Water Received: 5/04/09 Test Description Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted Date Analyzed 5/04/23 5/04/5 5/04/ 5/04/ Analyst Alina Dobreanu Gurpreet Kaur Elsamma Alex Subhashchandra Patel Lemeneh Addis Karen Hughes : ABU950 Collected: 5/04/09 Sample ID: WG RD09A Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic : ABX083 Collected: 5/04/09 Sample ID: FILTERED BLANK Shipped: Matrix: Water Received: 5/04/09 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic : ABX084 Collected: 5/04/09 Sample ID: FILTERED SPIKE Shipped: Matrix: Water Received: 5/04/09 Test Description ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/22 Analyst Milijana Avramovic Page 2 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

60 Maxxam Job #: B56274 Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Sample containers submitted for Acidity had headspace. GENERAL COMMENTS Sample ABU945-0 : Total Organic Carbon < Dissolved Organic Carbon: Both values fall within acceptable RPD limits for duplicates and are likely equivalent. ABN analysis: Due to limited amount of sample available for analysis, a smaller than usual portion of the sample was used. Detection limits were adjusted accordingly. Sample ABU949-0 : Total Organic Carbon < Dissolved Organic Carbon: Both values fall within acceptable RPD limits for duplicates and are likely equivalent. Acidity Test: Sample initial ph was (>8.3), therefore acidity was not detected (ND). Elevated ion balance was confirmed by re-analysis. Sample ABX084-0 : ABN analysis:data are reported as percentage recoveries. Results relate only to the items tested. Page 22 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

61 Maxxam Job #: B56274 Report Date: 5/04/23 QUALITY ASSURAE REPORT Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Parameter Date Matrix Spike Recovery QC Limits Spiked Blank Recovery QC Limits Method Blank Value Value () RPD QC Limits QC Standard Recovery QC Limits Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene Decachlorobiphenyl,4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene,,,2-Tetrachloroethane,,-Trichloroethane,,2,2-Tetrachloroethane,,2-Trichloroethane,-Dichloroethane,-Dichloroethylene,2-Dichlorobenzene,2-Dichloroethane,2-Dichloropropane,3-Dichlorobenzene,4-Dichlorobenzene Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene 5/04/ 5/04/5 5/04/22 5/04/22 5/04/22 5/04/ <0 <.0 Page 23 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

62 Maxxam Job #: B56274 Report Date: 5/04/ Parameter Chloroform cis-,2-dichloroethylene cis-,3-dichloropropene Dibromochloromethane Dichlorodifluoromethane (FREON 2) Ethylbenzene Ethylene Dibromide Hexane Methyl Ethyl Ketone (2-Butanone) Methyl Isobutyl Ketone Methyl t-butyl ether (MTBE) Methylene Chloride(Dichloromethane) o-xylene p+m-xylene Styrene Tetrachloroethylene Toluene Total Xylenes trans-,2-dichloroethylene trans-,3-dichloropropene Trichloroethylene Trichlorofluoromethane (FREON ) Vinyl Chloride Dissolved Organic Carbon Turbidity Fluoride (F-) ph Nitrate (N) Nitrite (N) Total Suspended Solids Total Dissolved Solids QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <0. <.0 <.0 <0 <5.0 <2.0 < <0.00 <0 <0 NTU Value () RPD QC Limits QC Standard Recovery 97 0 QC Limits Page 24 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

63 Maxxam Job #: B56274 Report Date: 5/04/ Parameter Nitrate (N) Nitrite (N) Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Free Cyanide Chromium (VI) Dissolved Chloride (Cl) Dissolved Sulphate (SO4) Orthophosphate (P) Total Organic Carbon (TOC) Total Ammonia-N F (C6-C0) - BTEX F (C6-C0) Acidity as CaC03 Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ 5/04/ 5/04/ 5/04/ /04/ /04/ /04/ /04/ /04/ 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank 0 <0.00 <2 < < < <25 <25 <0 <0.000 <0.00 <0.00 < < Value () RPD QC Limits QC Standard Recovery QC Limits Page 25 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

64 Maxxam Job #: B56274 Report Date: 5/04/ Parameter Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Mercury (Hg) Alkalinity (Total as CaCO3) Conductivity,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/22 3-5/04/ /04/ Page 26 of Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <0.00 < < < <0.000 < < <0.000 <00 <0 <0 < <.0 <.0 <2 umho/c m Value () RPD QC Limits QC Standard Recovery QC Limits Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

65 Maxxam Job #: B56274 Report Date: 5/04/ Parameter 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Dissolved Chloride (Cl) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/22 3-5/04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <0.0 < < < Value () () RPD QC Limits QC Standard Recovery QC Limits Page 27 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

66 Maxxam Job #: B56274 Report Date: 5/04/ Parameter = Not Applicable Dissolved Sulphate (SO4) Date 5/04/23 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Recovery QC Limits Spiked Blank Recovery Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. QC Limits 80 - Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank QC Standard: A sample of known concentration prepared by an external agency under stringent conditions. Used as an independent check of method accuracy. 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. () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. 02 < Value () 0.7 RPD QC Limits QC Standard Recovery (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). (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 ). QC Limits Page 28 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

67 Maxxam Job #: B56274 Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR VALIDION SIGNURE PAGE The analytical data and all QC contained in this report were reviewed and validated by the following individual(s). Ewa Pranjic, M.Sc., C.Chem, Scientific Specialist Grace Sison, B.Sc., C.Chem, Senior Project Manager - Petroleum Division Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Page 29 of Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

68 Page of

69 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B Received: 5/04/0, 6:00 Sample Matrix: Water # Samples Received: 9 Analyses Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid (, 2) Alkalinity Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) (3) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water (4) Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/2 CAM SOP-00 5/04/2 5/04/22 CAM SOP-00 5/04/2 5/04/23 CAM SOP-00 5/04/ SLA SOP-0000 CAM SOP /04/2 CAM SOP /04/4 CAM SOP /04/5 CAM SOP /04/5 CAM SOP /04/2 CAM SOP CAM SOP /04/5 CAM SOP /04/6 CAM SOP /04/4 CAM SOP /04/6 CAM SOP /04/7 CAM SOP /04/7 5/04/8 CAM SOP /04/ CAM SOP /04/7 CAM SOP 0002/00408/ /04/ 5/04/2 CAM SOP /04/7 CAM SOP /04/7 5/04/7 5/04/7 CAM SOP /04/7 CAM SOP /04/4 CAM SOP-009 CAM SOP-0043 CAM SOP /04/7 5/04/7 Reference EPA 8270D m EPA 8270 m EPA 8270 m APHA SM230B (Mod) SM B m SM B m APHA 4500-CO2 D EPA 8260C m EPA m EPA m SM m EPA 799 m OMOE E5 m SM B m CCME PHC-CWS m CCME PHC-CWS m CCME PHC-CWS m SM F C m SM 2340 B EPA 7470A m EPA 60A m EPA GS I m SM NO3I/NO2B EPA 8082A m SM 4500H+ B m EPA 365. m Page of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

70 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B Received: 5/04/0, 6:00 Sample Matrix: Water # Samples Received: 9 Analyses Sulphate by Automated Colourimetry Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) (5) Total Suspended Solids Turbidity Volatile Organic Compounds in Water CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method CAM SOP /04/2 CAM SOP /04/7 CAM SOP /04/5 CAM SOP /04/2 CAM SOP CAM SOP-0047 CAM SOP Reference EPA m EPA m SM C m SM B m SM D m SM 22 2 B m EPA 8260C m Remarks: Maxxam Analytics has performed all analytical testing herein in accordance with ISO 7025 and the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. All methodologies comply with this document and are validated for use in the laboratory. The methods and techniques employed in this analysis conform to the performance criteria (detection limits, accuracy and precision) as outlined in the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. The CWS PHC methods employed by Maxxam conform to all prescribed elements of the reference method and performance based elements have been validated. All modifications have been validated and proven equivalent following the 'Alberta Environment Draft Addenda to the CWS-PHC, Appendix 6, Validation of Alternate Methods'. Documentation is available upon request. Maxxam has made the following improvements to the CWS-PHC reference benchmark method: (i) Headspace for F; and, (ii) Mechanical extraction for F2-F4. Note: F4G cannot be added to the C6 to C50 hydrocarbons. The extraction date for samples field preserved with methanol for F and Volatile Organic Compounds is considered to be the date sampled. Maxxam Analytics is accredited for all specific parameters as required by Ontario Regulation 53/04. Maxxam Analytics is limited in liability to the actual cost of analysis unless otherwise agreed in writing. There is no other warranty expressed or implied. Samples will be retained at Maxxam Analytics for three weeks from receipt of data or as per contract. 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 Sladeview Petrochemical (2) Sample(s) analyzed using methodologies that have not been subjected to Maxxam's standard validation process for the submitted matrix and is not an Accredited method. Analysis performed with client consent, however results should be viewed with discretion (3) Dissolved Organic Carbon (DOC) present in the sample should be considered as non-purgeable DOC. (4) Values for calculated parameters may not appear to add up due to rounding of raw data and significant figures. (5) Total Organic Carbon (TOC) present in the sample should be considered as non-purgeable TOC. Page 2 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

71 MAXXAM JOB #: B Received: 5/04/0, 6:00 Attention:Lesley Veale, Brant Gill, ON Canada CERTIFICE OF ANALYSIS Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your C.O.C. #: Report Date: 5/04/23 Report #: R Version: - Final Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Krystal Seedial, Project Manager KSeedial@maxxam.ca Phone# (905) ==================================================================== Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Total Cover Pages : 3 Page 3 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

72 Maxxam Job #: B Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ558 5/04/0 : WG RD08 ABZ560 5/04/0 0: WG RD00 Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) = Reportable Detection Limit = Quality Control Batch = Not Applicable me/l me/l umho/cm ph < < < < <0.00 < Page 4 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

73 Maxxam Job #: B Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ558 5/04/0 : WG RD08 ABZ560 5/04/0 0: WG RD00 Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch < < < < < < < < < Page 5 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

74 Maxxam Job #: B Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ562 5/04/0 3: WG RD Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Calculated TDS Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Nitrate + Nitrite Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) = Reportable Detection Limit = Quality Control Batch = Not Applicable me/l me/l umho/cm ph < < < < Page 6 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

75 Maxxam Job #: B Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ562 5/04/0 3: WG RD Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch 8.8 < < < < < < < Page 7 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

76 Maxxam Job #: B Report Date: 5/04/23 RESULTS OF ANALYSES OF WER Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Inorganics Acidity as CaC03 Total Dissolved Solids Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABZ558 5/04/0 : WG RD08 < < ABZ560 5/04/0 0: WG RD < ABZ560 5/04/0 0: WG RD00 Lab-Dup <2 ABZ562 5/04/0 3: WG RD < < Inorganics Acidity as CaC03 = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABZ562 5/04/0 3: WG RD Lab-Dup < Page 8 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

77 Maxxam Job #: B Report Date: 5/04/23 ELEMENTS BY OMIC SPECTROSCOPY (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch ABZ558 5/04/0 : WG RD08 < ABZ560 5/04/0 0: WG RD < ABZ562 5/04/0 3: WG RD < Page 9 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

78 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 PCBS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR PCBs Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Surrogate Recovery () Decachlorobiphenyl = Reportable Detection Limit = Quality Control Batch ABZ558 5/04/0 : WG RD08 70 ABZ560 5/04/0 0: WG RD00 65 ABZ562 5/04/0 3: WG RD Page 0 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

79 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ABZ558 5/04/0 : WG RD08 <25 <25 <00 <0 <0 Yes ABZ560 5/04/0 0: WG RD00 <25 <25 <00 <0 <0 Yes ABZ560 5/04/0 0: WG RD00 Lab-Dup <00 <0 <0 Yes 95 ABZ562 5/04/0 3: WG RD <25 <25 <00 <0 <0 Yes Page of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

80 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ564 5/04/0 : FIELD BLANK BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch <25 <25 <00 <0 <0 Yes Page 2 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

81 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ558 5/04/0 : WG RD08 ABZ559 5/04/0 : WG RD08A ABZ560 5/04/0 0: WG RD00 Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene = Reportable Detection Limit = Quality Control Batch <2 <0.0 < <2 <0.0 < 2.0 <2 <0.0 < Page 3 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

82 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABZ558 5/04/0 : WG RD08 < () ABZ559 5/04/0 : WG RD08A 6.3 () = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 5 ABZ560 5/04/0 0: WG RD00 < Page 4 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

83 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ56 5/04/0 0: WG RD0A ABZ562 5/04/0 3: WG RD ABZ563 5/04/0 3: WG RDA ABZ564 5/04/0 : FIELD BLANK Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene = Reportable Detection Limit = Quality Control Batch <2 <0.0 < <2 <0.0 2 <2 <0.0 < 0. <2 <0.0 < Page 5 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

84 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ABZ56 5/04/0 0: WG RD0A < () 62 ABZ562 5/04/0 3: WG RD = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < ABZ563 5/04/0 3: WG RDA < () 72 ABZ564 5/04/0 : FIELD BLANK < () Page 6 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

85 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ70 ABZ702 5/04/0 5/04/ FILTERED BLANK FILTERED SPIKE Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene <2 <0.0 < = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria () 0 () 8 () 8 () 5 () 8 () () 8 () 6 () () 6 Page 7 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

86 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ70 ABZ702 5/04/0 5/04/ FILTERED BLANK FILTERED SPIKE Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene < () () = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria () () () Page 8 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

87 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ558 5/04/0 : WG RD08 ABZ560 5/04/0 0: WG RD00 ABZ562 5/04/0 3: WG RD ABZ564 5/04/0 : FIELD BLANK Calculated Parameters,3-Dichloropropene (cis+trans) Volatile Organics Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform Dibromochloromethane,2-Dichlorobenzene,3-Dichlorobenzene,4-Dichlorobenzene Dichlorodifluoromethane (FREON 2),-Dichloroethane,2-Dichloroethane,-Dichloroethylene cis-,2-dichloroethylene trans-,2-dichloroethylene,2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Ethylbenzene Ethylene Dibromide Hexane Methylene Chloride(Dichloromethane) Methyl Isobutyl Ketone Methyl Ethyl Ketone (2-Butanone) Methyl t-butyl ether (MTBE) Styrene,,,2-Tetrachloroethane = Reportable Detection Limit = Quality Control Batch <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 <0 3 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 < Page 9 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

88 Maxxam Job #: B Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR ABZ558 5/04/0 : WG RD08 ABZ560 5/04/0 0: WG RD00 ABZ562 5/04/0 3: WG RD ABZ564 5/04/0 : FIELD BLANK,,2,2-Tetrachloroethane Tetrachloroethylene Toluene,,-Trichloroethane,,2-Trichloroethane Trichloroethylene Vinyl Chloride p+m-xylene o-xylene Total Xylenes Trichlorofluoromethane (FREON ) Surrogate Recovery () 4-Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene = Reportable Detection Limit = Quality Control Batch Page of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

89 Maxxam Job #: B Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABZ558 Collected: 5/04/0 Sample ID: WG RD08 Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/2 5/04/7 5/04/ 5/04/ Date Analyzed 5/04/2 5/04/22 5/04/ 5/04/2 5/04/4 5/04/5 5/04/2 5/04/5 5/04/6 5/04/4 5/04/6 5/04/8 5/04/7 5/04/2 5/04/7 5/04/7 5/04/7 5/04/7 5/04/7 5/04/4 5/04/7 5/04/7 5/04/2 5/04/7 5/04/5 5/04/2 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Joe Paino (Kent) Maolin Li Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Sarah Huang Surinder Rai Alina Dobreanu Alina Dobreanu Alpa Patel Anastasia Hamanov Subhashchandra Patel Lemeneh Addis Xueming Jiang : ABZ559 Collected: 5/04/0 Sample ID: WG RD08A Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic Page 2 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

90 Maxxam Job #: B Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABZ560 Collected: 5/04/0 Sample ID: WG RD00 Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/2 5/04/7 5/04/ 5/04/ Date Analyzed 5/04/2 5/04/22 5/04/ 5/04/4 5/04/5 5/04/5 5/04/5 5/04/6 5/04/4 5/04/6 5/04/8 5/04/7 5/04/2 5/04/7 5/04/7 5/04/7 5/04/7 5/04/7 5/04/4 5/04/7 5/04/7 5/04/7 5/04/5 5/04/2 Analyst Milijana Avramovic Grace Sison Surinder Rai Deonarine Ramnarine Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Joe Paino (Kent) Maolin Li Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Sarah Huang Surinder Rai Alina Dobreanu Alina Dobreanu Alpa Patel Anastasia Hamanov Subhashchandra Patel Lemeneh Addis Xueming Jiang : ABZ560 Dup Collected: 5/04/0 Sample ID: WG RD00 Shipped: Matrix: Water Received: 5/04/0 Test Description Free (WAD) Cyanide Petroleum Hydrocarbons F2-F4 in Water Instrumentation TECH/CN GC/FID Batch Extracted 5/04/7 Date Analyzed 5/04/6 5/04/8 Analyst Xuanhong Qiu (Kent) Maolin Li Page 22 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

91 Maxxam Job #: B Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABZ56 Collected: 5/04/0 Sample ID: WG RD0A Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/23 Analyst Milijana Avramovic : ABZ562 Collected: 5/04/0 Sample ID: WG RD Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Dissolved Solids (TDS calc) Total Dissolved Solids Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE BAL TOCV/NDIR BAL GC/MS Batch Extracted 5/04/2 5/04/7 5/04/ 5/04/ Date Analyzed 5/04/2 5/04/23 5/04/ 5/04/4 5/04/5 5/04/5 5/04/5 5/04/6 5/04/4 5/04/7 5/04/8 5/04/7 5/04/2 5/04/7 5/04/7 5/04/7 5/04/7 5/04/7 5/04/4 5/04/7 5/04/7 5/04/7 5/04/5 5/04/2 Analyst Milijana Avramovic Grace Sison Surinder Rai Deonarine Ramnarine Surinder Rai Sally Coughlin Xuanhong Qiu Elsamma Alex Joe Paino (Kent) Maolin Li Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Sarah Huang Surinder Rai Alina Dobreanu Alina Dobreanu Alpa Patel Anastasia Hamanov Subhashchandra Patel Lemeneh Addis Xueming Jiang Page 23 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

92 Maxxam Job #: B Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR : ABZ562 Dup Collected: 5/04/0 Sample ID: WG RD Shipped: Matrix: Water Received: 5/04/0 Test Description Acidity as CaC03 in liquid Instrumentation Batch Extracted Date Analyzed 5/04/ Analyst Grace Sison : ABZ563 Collected: 5/04/0 Sample ID: WG RDA Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/23 Analyst Milijana Avramovic : ABZ564 Collected: 5/04/0 Sample ID: FIELD BLANK Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS,3-Dichloropropene Sum Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Volatile Organic Compounds in Water Instrumentation GC/MS HSGC/MSFD GC/FID GC/MS Batch Extracted 5/04/2 5/04/7 Date Analyzed 5/04/2 5/04/22 5/04/5 5/04/6 5/04/8 Analyst Milijana Avramovic Joe Paino (Kent) Maolin Li Xueming Jiang : ABZ70 Collected: 5/04/0 Sample ID: FILTERED BLANK Shipped: Matrix: Water Received: 5/04/0 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/2 5/04/22 Analyst Milijana Avramovic : ABZ702 Collected: 5/04/0 Sample ID: FILTERED SPIKE Shipped: Matrix: Water Received: 5/04/0 Test Description ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/2 Date Analyzed 5/04/22 Analyst Milijana Avramovic Page 24 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

93 Maxxam Job #: B Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR GENERAL COMMENTS Sample ABZ558-0 : Nitrite/Nitrate: Due to the sample matrix, sample required dilution. Detection limits were adjusted accordingly. Acidity Test: Sample initial ph was (>8.3), therefore acidity was not detected (ND). Elevated ion balance was confirmed by re-analysis. Sample ABZ560-0 : Total/Dissolved Chromium < Hexavalent Chromium: Both values fall within acceptable RPD limits for duplicates and are likely equivalent. Sample ABZ562-0 : Acidity Test: Sample initial ph was (>8.3), therefore acidity was not detected (ND). Sample ABZ702-0 : ABN analysis:data are reported as percentage recoveries. Results relate only to the items tested. Page 25 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

94 Maxxam Job #: B Report Date: 5/04/23 QUALITY ASSURAE REPORT Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Parameter Date Matrix Spike Recovery QC Limits Spiked Blank Recovery QC Limits Method Blank Value Value () RPD QC Limits QC Standard Recovery QC Limits Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene Decachlorobiphenyl,4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene Dissolved Organic Carbon Free Cyanide Turbidity Nitrate (N) Nitrite (N) Total Suspended Solids,,,2-Tetrachloroethane,,-Trichloroethane,,2,2-Tetrachloroethane,,2-Trichloroethane,-Dichloroethane,-Dichloroethylene,2-Dichlorobenzene,2-Dichloroethane,2-Dichloropropane,3-Dichlorobenzene,4-Dichlorobenzene Acetone (2-Propanone) 5/04/6 5/04/6 5/04/6 5/04/6 5/04/8 5/04/22 5/04/22 5/04/22 5/04/22 5/04/6 5/04/7 5/04/7 5/04/ <2 0 <0.00 <0 <0 NTU Page 26 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

95 Maxxam Job #: B Report Date: 5/04/ Parameter Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform cis-,2-dichloroethylene cis-,3-dichloropropene Dibromochloromethane Dichlorodifluoromethane (FREON 2) Ethylbenzene Ethylene Dibromide Hexane Methyl Ethyl Ketone (2-Butanone) Methyl Isobutyl Ketone Methyl t-butyl ether (MTBE) Methylene Chloride(Dichloromethane) o-xylene p+m-xylene Styrene Tetrachloroethylene Toluene Total Xylenes trans-,2-dichloroethylene trans-,3-dichloropropene Trichloroethylene Trichlorofluoromethane (FREON ) Vinyl Chloride Alkalinity (Total as CaCO3) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <.0 <0. <.0 <.0 <0 <5.0 <2.0 <0.40 <.0 Value () RPD QC Limits 25 QC Standard Recovery QC Limits Page 27 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

96 Maxxam Job #: B Report Date: 5/04/ Parameter Conductivity Fluoride (F-) ph Dissolved Chloride (Cl) Dissolved Sulphate (SO4) Orthophosphate (P) Chromium (VI) Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Total Dissolved Solids Acidity as CaC03 Total Organic Carbon (TOC) Total Ammonia-N Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits /04/ /04/ /04/ 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Page 28 of 33 Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <.0 0 < < <0.00 <0 <0 0 <0.000 <0.00 <0.00 < < umho/c m Value () RPD QC Limits QC Standard Recovery 00 QC Limits 90-0 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

97 Maxxam Job #: B Report Date: 5/04/ Parameter Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) Mercury (Hg) F (C6-C0) - BTEX F (C6-C0) F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Dissolved Chloride (Cl) Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3),2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/6 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <0.00 < < < <0.000 < < <0.000 < <25 <25 <00 <0 <0 < < <.0 Value () RPD QC Limits 25 QC Standard Recovery QC Limits Page 29 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

98 Maxxam Job #: B Report Date: 5/04/23 Parameter 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank <2 <0.0 < < Value () () RPD QC Limits QC Standard Recovery QC Limits Page of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

99 Maxxam Job #: B Report Date: 5/04/23 Parameter Pyrene Date 5/04/22 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Recovery QC Limits Spiked Blank Recovery Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. QC Limits 50 - Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. Value Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR Method Blank QC Standard: A sample of known concentration prepared by an external agency under stringent conditions. Used as an independent check of method accuracy. 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. () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. 07 Value () RPD QC Limits QC Standard Recovery (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). (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 ). QC Limits Page 3 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

100 Maxxam Job #: B Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-MONITORING WELLS Your P.O. #: 6400NR VALIDION SIGNURE PAGE The analytical data and all QC contained in this report were reviewed and validated by the following individual(s). Cristina Carriere, Scientific Services Ewa Pranjic, M.Sc., C.Chem, Scientific Specialist Grace Sison, B.Sc., C.Chem, Senior Project Manager - Petroleum Division Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Page 32 of 33 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

101 Page 33 of 33

102 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your C.O.C. #: , Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B56588 Received: 5/04/4, 3:50 Sample Matrix: Water # Samples Received: 5 Analyses Methylnaphthalene Sum Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid (, 2) Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) (3) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Hardness (calculated as CaCO3) Mercury in Water by CVAA Mercury in Water by CVAA Lab Filtered Metals Analysis by ICP Dissolved Metals by ICPMS Total Metals Analysis by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water (4) Polychlorinated Biphenyl in Water Polychlorinated Biphenyl in Water CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/2 CAM SOP-00 5/04/22 CAM SOP-00 5/04/ 5/04/2 CAM SOP-00 5/04/5 5/04/2 SLA SOP /04/6 CAM SOP /04/7 CAM SOP /04/7 CAM SOP /04/8 CAM SOP /04/6 CAM SOP /04/6 CAM SOP /04/6 CAM SOP /04/7 CAM SOP /04/7 CAM SOP /04/8 CAM SOP /04/7 5/04/8 CAM SOP /04/5 5/04/6 CAM SOP /04/7 CAM SOP 0002/00408/ /04/22 CAM SOP 0002/00408/ /04/7 5/04/7 CAM SOP /04/ 5/04/ CAM SOP /04/6 5/04/6 CAM SOP /04/22 CAM SOP /04/ CAM SOP /04/22 5/04/22 5/04/7 CAM SOP /04/ CAM SOP /04/9 CAM SOP /04/5 5/04/5 CAM SOP-009 5/04/5 5/04/6 CAM SOP-009 Reference EPA 8270D m EPA 8270D m EPA 8270 m APHA SM230B (Mod) SM B m APHA 4500-CO2 D EPA 8260C m EPA 8260C m EPA m SM m EPA 799 m OMOE E5 m SM B m CCME PHC-CWS m CCME PHC-CWS m SM F C m SM 2340 B SM 2340 B EPA 7470A m EPA 7470A m EPA 600C m EPA 60A m EPA 60A m EPA GS I m EPA GS I m SM NO3I/NO2B EPA 8082A m EPA 8082A m Page of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

103 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your C.O.C. #: , Report Date: 5/04/23 Report #: R Version: - Final MAXXAM JOB #: B56588 Received: 5/04/4, 3:50 Sample Matrix: Water # Samples Received: 5 Analyses ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) (5) Total Phosphorus (Colourimetric) Total Suspended Solids Turbidity Volatile Organic Compounds in Water CERTIFICE OF ANALYSIS Date Quantity Extracted Date Analyzed Laboratory Method 5/04/6 CAM SOP /04/6 CAM SOP /04/7 5/04/22 5/04/7 5/04/22 5/04/6 CAM SOP /04/6 CAM SOP /04/ 5/04/ CAM SOP /04/5 CAM SOP /04/6 CAM SOP /04/7 CAM SOP Reference SM 4500H+ B m EPA 365. m EPA m SM B m SM 4500 P B H m SM D m SM 22 2 B m EPA 8260C m Remarks: Maxxam Analytics has performed all analytical testing herein in accordance with ISO 7025 and the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. All methodologies comply with this document and are validated for use in the laboratory. The methods and techniques employed in this analysis conform to the performance criteria (detection limits, accuracy and precision) as outlined in the Protocol for Analytical Methods Used in the Assessment of Properties under Part XV. of the Environmental Protection Act. The CWS PHC methods employed by Maxxam conform to all prescribed elements of the reference method and performance based elements have been validated. All modifications have been validated and proven equivalent following the 'Alberta Environment Draft Addenda to the CWS-PHC, Appendix 6, Validation of Alternate Methods'. Documentation is available upon request. Maxxam has made the following improvements to the CWS-PHC reference benchmark method: (i) Headspace for F; and, (ii) Mechanical extraction for F2-F4. Note: F4G cannot be added to the C6 to C50 hydrocarbons. The extraction date for samples field preserved with methanol for F and Volatile Organic Compounds is considered to be the date sampled. Maxxam Analytics is accredited for all specific parameters as required by Ontario Regulation 53/04. Maxxam Analytics is limited in liability to the actual cost of analysis unless otherwise agreed in writing. There is no other warranty expressed or implied. Samples will be retained at Maxxam Analytics for three weeks from receipt of data or as per contract. 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. Page 2 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

104 Attention:Lesley Veale, Brant Gill, ON Canada Your P.O. #: 6400NR Your Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your C.O.C. #: , Report Date: 5/04/23 Report #: R Version: - Final CERTIFICE OF ANALYSIS MAXXAM JOB #: B56588 Received: 5/04/4, 3:50 () This test was performed by Maxxam Sladeview Petrochemical (2) Sample(s) analyzed using methodologies that have not been subjected to Maxxam's standard validation process for the submitted matrix and is not an Accredited method. Analysis performed with client consent, however results should be viewed with discretion (3) Dissolved Organic Carbon (DOC) present in the sample should be considered as non-purgeable DOC. (4) Values for calculated parameters may not appear to add up due to rounding of raw data and significant figures. (5) Total Organic Carbon (TOC) present in the sample should be considered as non-purgeable TOC. Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Krystal Seedial, Project Manager KSeedial@maxxam.ca Phone# (905) ==================================================================== Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Total Cover Pages : 3 Page 3 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

105 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) me/l me/l = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate = Not Applicable umho/cm ph ACK469 2: WG RD < < < < <0.00 < ACK469 2: WG RD2 Lab-Dup 5 < ACK47 4: WG RD < < < < < ACK473 5/04/4 0: WG RD < < < <0.00 < Page 4 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

106 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ACK469 2: WG RD2 44 < < < < < <0.000 ACK469 2: WG RD2 Lab-Dup ACK47 4: WG RD3 40 < < < < < <0.000 ACK473 5/04/4 0: WG RD4 77 < < < < < < Page 5 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

107 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK475 5/04/4 0: ACK477 5/04/4 0: WG WG RD RD6 Calculated Parameters Anion Sum Bicarb. Alkalinity (calc. as CaCO3) Carb. Alkalinity (calc. as CaCO3) Cation Sum Hardness (CaCO3) Ion Balance ( Difference) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Dissolved Organic Carbon Orthophosphate (P) ph Dissolved Sulphate (SO4) Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Metals Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) Dissolved Calcium (Ca) = Reportable Detection Limit = Quality Control Batch = Not Applicable me/l me/l umho/cm ph < < < < < < < < <0.00 < Page 6 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

108 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - COMPREHENSIVE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK475 5/04/4 0: ACK477 5/04/4 0: WG WG RD RD6 Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch < < < < < <0.000 < < < < < < Page 7 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

109 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - SURFACE WER (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 Calculated Parameters Bicarb. Alkalinity (calc. as CaCO3) Carb. Alkalinity (calc. as CaCO3) Hardness (CaCO3) Langelier Index (@ C) Langelier Index (@ 4C) Saturation ph (@ C) Saturation ph (@ 4C) Inorganics Total Ammonia-N Conductivity Total Organic Carbon (TOC) Orthophosphate (P) ph Total Phosphorus Dissolved Sulphate (SO4) Turbidity Alkalinity (Total as CaCO3) Dissolved Chloride (Cl) Nitrite (N) Nitrate (N) Metals Dissolved Calcium (Ca) Dissolved Magnesium (Mg) Dissolved Potassium (K) Dissolved Sodium (Na) Total Aluminum (Al) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) = Reportable Detection Limit = Quality Control Batch = Not Applicable umho/cm ph NTU 2 < < < < < < < Page 8 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

110 Maxxam Job #: B56588 Report Date: 5/04/23 RCAP - SURFACE WER (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 Total Boron (B) Total Cadmium (Cd) Total Calcium (Ca) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Iron (Fe) Total Lead (Pb) Total Magnesium (Mg) Total Manganese (Mn) Total Molybdenum (Mo) Total Nickel (Ni) Total Phosphorus (P) Total Potassium (K) Total Silicon (Si) Total Selenium (Se) Total Silver (Ag) Total Sodium (Na) Total Strontium (Sr) Total Thallium (Tl) Total Titanium (Ti) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Zirconium (Zr) = Reportable Detection Limit = Quality Control Batch 0. < <0.00 < < <0.000 < < <0.00 < < < < < <0.00 < < < Page 9 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

111 Maxxam Job #: B56588 Report Date: 5/04/23 RESULTS OF ANALYSES OF WER Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: ACK469 2: WG WG RD RD2 Lab-Dup Inorganics Acidity as CaC03 Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate 4 <2 <0 2 0 <2 < <2 < < Inorganics Acidity as CaC03 Fluoride (F-) Free Cyanide Total Organic Carbon (TOC) Total Suspended Solids Turbidity NTU = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ACK47 4: WG RD3 2 6 < ACK473 5/04/4 0: WG RD <2.2 <0 2.2 ACK475 5/04/4 0: WG RD5 <0 7 < ACK475 5/04/4 0: WG RD5 Lab-Dup 3 ACK477 5/04/4 0: WG RD <2.2 < Page 0 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

112 Maxxam Job #: B56588 Report Date: 5/04/23 RESULTS OF ANALYSES OF WER Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Inorganics Acidity as CaC03 = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ACK477 5/04/4 0: WG RD6 Lab-Dup Page of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

113 Maxxam Job #: B56588 Report Date: 5/04/23 ELEMENTS BY OMIC SPECTROSCOPY (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: WG RD2 Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch < < < < Metals Chromium (VI) Mercury (Hg) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ACK469 2: WG RD2 Lab-Dup < ACK47 4: WG RD3 < ACK473 5/04/4 0: WG RD4 < ACK475 5/04/4 0: WG RD5 < ACK477 5/04/4 0: WG RD6 < Page 2 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

114 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 PCBS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: ACK469 2: WG WG RD RD2 Lab-Dup PCBs Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Surrogate Recovery () Decachlorobiphenyl = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate PCBs Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Surrogate Recovery () Decachlorobiphenyl = Reportable Detection Limit = Quality Control Batch ACK47 4: WG RD3 2 ACK473 5/04/4 0: WG RD4 4 ACK475 5/04/4 0: WG RD5 09 ACK477 5/04/4 0: WG RD Page 3 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

115 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: ACK47 4: WG WG RD RD3 BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch <25 <25 <00 <0 <0 Yes <25 <25 <00 <0 <0 Yes <25 <25 <00 <0 <0 Yes <25 <25 <00 <0 <0 Yes <25 <25 <00 <0 <0 Yes Page 4 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

116 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 PETROLEUM HYDROCARBONS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR BTEX & F Hydrocarbons F (C6-C0) F (C6-C0) - BTEX F2-F4 Hydrocarbons F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (),4-Difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane o-terphenyl = Reportable Detection Limit = Quality Control Batch ACK473 5/04/4 0: WG RD4 <25 <25 <00 <0 <0 Yes ACK475 5/04/4 0: WG RD5 <25 <25 <00 <0 <0 Yes ACK477 5/04/4 0: WG RD6 <25 <25 <00 <0 <0 Yes Page 5 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

117 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: WG RD2 ACK470 2: WG RD2A Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene = Reportable Detection Limit = Quality Control Batch <2 <0.0 < <2 <0.0 < <2 <0.0 < <2 <0.0 < <2 <0.0 < Page 6 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

118 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ACK466 07: WS RD00 < ACK467 08: WS RD0 < ACK468 09: WS RD02 = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 8 57 ACK469 2: WG RD2 < ACK470 2: WG RD2A < () Page 7 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

119 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate ACK47 4: WG RD3 <2 <0.0 < ACK47 4: WG RD3 Lab-Dup <2 <0.0 < ACK472 4: WG RDA <2 <0.0 < ACK473 5/04/4 0: WG RD4 <2 <0.0 < ACK474 5/04/4 0: WG RD4A <2 <0.0 < Page 8 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

120 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ACK47 4: WG RD3 < () ACK47 4: WG RD3 Lab-Dup < ACK472 4: WG RDA = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 8 ACK473 5/04/4 0: WG RD4 < ACK474 5/04/4 0: WG RD4A < () 4 () Page 9 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

121 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene = Reportable Detection Limit = Quality Control Batch ACK475 5/04/4 0: WG RD5 <2 <0.0 < ACK476 5/04/4 0: WG RD5A <2 <0.0 < ACK477 5/04/4 0: WG RD6 <2 <0.0 < ACK478 5/04/4 0: WG RD6A <2 <0.0 < Page of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

122 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene ACK475 5/04/4 0: WG RD5 < ACK476 5/04/4 0: WG RD5A 8 = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria. < () 78 ACK477 5/04/4 0: WG RD6 < ACK478 5/04/4 0: WG RD6A < () 7 () Page 2 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

123 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK863 4: ACK FILTERED BLANK FILTERED SPIKE Semivolatile Organics,2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene <2 <0.0 < 47 () = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria () 7 () 3 () 4 () () 3 () () 4 () () Page 22 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

124 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 SEMIVOLILES PACKAGE (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK863 4: ACK FILTERED BLANK FILTERED SPIKE Fluorene Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Calculated Parameters Methylnaphthalene, 2-(-) Surrogate Recovery () 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene < () 68 () = Reportable Detection Limit = Quality Control Batch () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria () () 44 () Page 23 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

125 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK466 07: WS RD00 Lab-Dup ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: WG RD2 Calculated Parameters,3-Dichloropropene (cis+trans) Volatile Organics Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform Dibromochloromethane,2-Dichlorobenzene,3-Dichlorobenzene,4-Dichlorobenzene Dichlorodifluoromethane (FREON 2),-Dichloroethane,2-Dichloroethane,-Dichloroethylene cis-,2-dichloroethylene trans-,2-dichloroethylene,2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Ethylbenzene Ethylene Dibromide Hexane Methylene Chloride(Dichloromethane) Methyl Isobutyl Ketone Methyl Ethyl Ketone (2-Butanone) Methyl t-butyl ether (MTBE) = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate 49 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 47 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 6 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 < Page 24 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

126 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR ACK466 07: WS RD00 ACK466 07: WS RD00 Lab-Dup ACK467 08: WS RD0 ACK468 09: WS RD02 ACK469 2: WG RD2 Styrene,,,2-Tetrachloroethane,,2,2-Tetrachloroethane Tetrachloroethylene Toluene,,-Trichloroethane,,2-Trichloroethane Trichloroethylene Vinyl Chloride p+m-xylene o-xylene Total Xylenes Trichlorofluoromethane (FREON ) Surrogate Recovery () 4-Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene = Reportable Detection Limit = Quality Control Batch Lab-Dup = Laboratory Initiated Duplicate Page 25 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

127 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR Calculated Parameters,3-Dichloropropene (cis+trans) Volatile Organics Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform Dibromochloromethane,2-Dichlorobenzene,3-Dichlorobenzene,4-Dichlorobenzene Dichlorodifluoromethane (FREON 2),-Dichloroethane,2-Dichloroethane,-Dichloroethylene cis-,2-dichloroethylene trans-,2-dichloroethylene,2-dichloropropane cis-,3-dichloropropene trans-,3-dichloropropene Ethylbenzene Ethylene Dibromide Hexane Methylene Chloride(Dichloromethane) Methyl Isobutyl Ketone Methyl Ethyl Ketone (2-Butanone) Methyl t-butyl ether (MTBE) Styrene = Reportable Detection Limit = Quality Control Batch ACK47 4: WG RD3 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ACK473 5/04/4 0: WG RD4 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ACK475 5/04/4 0: WG RD5 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 <0 ACK477 5/04/4 0: WG RD6 <0 <.0 <.0 <0. <0.40 <.0 <2.0 <5.0 < Page 26 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

128 Maxxam Job #: B56588 Report Date: 5/04/23 O.REG 53 VOLILE ORGANICS (WER) Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR,,,2-Tetrachloroethane,,2,2-Tetrachloroethane Tetrachloroethylene Toluene,,-Trichloroethane,,2-Trichloroethane Trichloroethylene Vinyl Chloride p+m-xylene o-xylene Total Xylenes Trichlorofluoromethane (FREON ) Surrogate Recovery () 4-Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene = Reportable Detection Limit = Quality Control Batch ACK47 4: WG RD ACK473 5/04/4 0: WG RD ACK475 5/04/4 0: WG RD ACK477 5/04/4 0: WG RD Page 27 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

129 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK466 Collected: Sample ID: WS RD00 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Lab Filtered Metals Analysis by ICP Total Metals Analysis by ICPMS Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Phosphorus (Colourimetric) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN HSGC/MSFD GC/FID ISE CV/AA ICP ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR LACH/P BAL GC/MS Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/6 5/04/5 5/04/ Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/6 5/04/7 5/04/8 5/04/8 5/04/6 5/04/7 5/04/ 5/04/6 5/04/ 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/ 5/04/5 5/04/6 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Azita Fazaeli Cristina Petran Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Sarabjit Raina Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK466 Dup Collected: Sample ID: WS RD00 Shipped: Matrix: Water Received: 5/04/4 Test Description Volatile Organic Compounds in Water Instrumentation GC/MS Batch Extracted Date Analyzed 5/04/7 Analyst Manpreet Sarao Page 28 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

130 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK467 Collected: Sample ID: WS RD0 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Lab Filtered Metals Analysis by ICP Total Metals Analysis by ICPMS Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Phosphorus (Colourimetric) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN HSGC/MSFD GC/FID ISE CV/AA ICP ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR LACH/P BAL GC/MS Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/6 5/04/5 5/04/ Date Analyzed 5/04/2 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/6 5/04/7 5/04/8 5/04/8 5/04/6 5/04/7 5/04/ 5/04/6 5/04/ 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/ 5/04/5 5/04/6 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Azita Fazaeli Cristina Petran Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Sarabjit Raina Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK468 Collected: Sample ID: WS RD02 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Instrumentation GC/MS Batch Extracted 5/04/ 5/04/5 Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Page 29 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

131 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK468 Collected: Sample ID: WS RD02 Shipped: Matrix: Water Received: 5/04/4 Test Description Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Lab Filtered Metals Analysis by ICP Total Metals Analysis by ICPMS Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Phosphorus (Colourimetric) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation KONE IC TECH/CN HSGC/MSFD GC/FID ISE CV/AA ICP ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR LACH/P BAL GC/MS Batch Extracted 5/04/7 5/04/5 5/04/7 5/04/6 5/04/5 5/04/ Date Analyzed 5/04/6 5/04/6 5/04/6 5/04/7 5/04/8 5/04/8 5/04/6 5/04/7 5/04/7 5/04/6 5/04/ 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/ 5/04/5 5/04/6 5/04/7 Analyst Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Azita Fazaeli Cristina Petran Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Sarabjit Raina Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK469 Collected: Sample ID: WG RD2 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD Batch Extracted 5/04/ 5/04/5 Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/8 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Anastasia Hamanov Georgeta Rusu Page of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

132 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK469 Collected: Sample ID: WG RD2 Shipped: Matrix: Water Received: 5/04/4 Test Description Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR BAL GC/MS Batch Extracted 5/04/7 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/8 5/04/6 5/04/22 5/04/ 5/04/22 5/04/22 5/04/22 5/04/ 5/04/9 5/04/5 5/04/6 5/04/6 5/04/22 5/04/22 5/04/6 5/04/6 5/04/5 5/04/6 5/04/7 Analyst Barbara Wowk Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK469 Dup Collected: Sample ID: WG RD2 Shipped: Matrix: Water Received: 5/04/4 Test Description Alkalinity Chloride by Automated Colourimetry Conductivity Fluoride Mercury in Water by CVAA Polychlorinated Biphenyl in Water ph Orthophosphate Sulphate by Automated Colourimetry Instrumentation KONE ISE CV/AA GC/ECD KONE KONE Batch Extracted 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/6 5/04/6 5/04/6 5/04/6 5/04/ 5/04/6 5/04/6 5/04/6 5/04/6 Analyst Surinder Rai Alina Dobreanu Surinder Rai Surinder Rai Magdalena Carlos Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu : ACK470 Collected: Sample ID: WG RD2A Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic Page 3 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

133 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK47 Collected: Sample ID: WG RD3 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR BAL GC/MS Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/2 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/8 5/04/8 5/04/6 5/04/22 5/04/ 5/04/22 5/04/22 5/04/22 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/22 5/04/22 5/04/6 5/04/6 5/04/5 5/04/6 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Anastasia Hamanov Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK47 Dup Collected: Sample ID: WG RD3 Shipped: Matrix: Water Received: 5/04/4 Test Description ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/2 Analyst Milijana Avramovic Page 32 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

134 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK472 Collected: Sample ID: WG RDA Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic : ACK473 Collected: 5/04/4 Sample ID: WG RD4 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR BAL GC/MS Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/7 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/8 5/04/8 5/04/6 5/04/22 5/04/ 5/04/22 5/04/22 5/04/22 5/04/7 5/04/9 5/04/6 5/04/6 5/04/6 5/04/22 5/04/22 5/04/6 5/04/6 5/04/5 5/04/6 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Anastasia Hamanov Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Gurpreet Kaur Lemeneh Addis Manpreet Sarao Page 33 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

135 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK474 Collected: 5/04/4 Sample ID: WG RD4A Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic : ACK475 Collected: 5/04/4 Sample ID: WG RD5 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE TOCV/NDIR BAL GC/MS Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/8 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/8 5/04/8 5/04/6 5/04/22 5/04/ 5/04/22 5/04/22 5/04/22 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/22 5/04/22 5/04/6 5/04/6 5/04/5 5/04/6 5/04/7 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Anastasia Hamanov Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Anastasia Hamanov Gurpreet Kaur Lemeneh Addis Manpreet Sarao Page 34 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

136 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK475 Dup Collected: 5/04/4 Sample ID: WG RD5 Shipped: Matrix: Water Received: 5/04/4 Test Description Total Suspended Solids Instrumentation BAL Batch Extracted Date Analyzed 5/04/5 Analyst Gurpreet Kaur : ACK476 Collected: 5/04/4 Sample ID: WG RD5A Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic : ACK477 Collected: 5/04/4 Sample ID: WG RD6 Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Acidity as CaC03 in liquid Alkalinity Carbonate, Bicarbonate and Hydroxide,3-Dichloropropene Sum Chloride by Automated Colourimetry Conductivity Chromium (VI) in Water Free (WAD) Cyanide Dissolved Organic Carbon (DOC) Petroleum Hydro. CCME F & BTEX in Water Petroleum Hydrocarbons F2-F4 in Water Fluoride Hardness (calculated as CaCO3) Mercury in Water by CVAA Dissolved Metals by ICPMS Ion Balance ( Difference) Anion and Cation Sum Total Ammonia-N Nitrate (NO3) and Nitrite (NO2) in Water Polychlorinated Biphenyl in Water ph Orthophosphate Sat. ph and Langelier Index (@ C) Sat. ph and Langelier Index (@ 4C) Sulphate by Automated Colourimetry Instrumentation GC/MS KONE IC TECH/CN TOCV/NDIR HSGC/MSFD GC/FID ISE CV/AA ICP/MS LACH/NH4 LACH GC/ECD KONE KONE Batch Extracted 5/04/ 5/04/5 5/04/7 5/04/5 5/04/ 5/04/5 Date Analyzed 5/04/22 5/04/2 5/04/2 5/04/6 5/04/7 5/04/8 5/04/6 5/04/6 5/04/6 5/04/7 5/04/7 5/04/8 5/04/8 5/04/6 5/04/22 5/04/ 5/04/22 5/04/22 5/04/22 5/04/ 5/04/9 5/04/6 5/04/6 5/04/6 5/04/22 5/04/22 5/04/6 Analyst Milijana Avramovic Grace Sison Surinder Rai Alina Dobreanu Surinder Rai Sally Coughlin Xuanhong Qiu Anastasia Hamanov Georgeta Rusu Barbara Wowk Surinder Rai Magdalena Carlos Prempal Bhatti Charles Opoku-Ware Chandra Nandlal Li Peng Surinder Rai Alina Dobreanu Alina Dobreanu Page 35 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

137 Maxxam Job #: B56588 Report Date: 5/04/23 TEST SUMMARY Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR : ACK477 Collected: 5/04/4 Sample ID: WG RD6 Shipped: Matrix: Water Received: 5/04/4 Test Description Total Organic Carbon (TOC) Total Suspended Solids Turbidity Volatile Organic Compounds in Water Instrumentation TOCV/NDIR BAL GC/MS Batch Extracted Date Analyzed 5/04/6 5/04/5 5/04/6 5/04/7 Analyst Anastasia Hamanov Gurpreet Kaur Lemeneh Addis Manpreet Sarao : ACK477 Dup Collected: 5/04/4 Sample ID: WG RD6 Shipped: Matrix: Water Received: 5/04/4 Test Description Acidity as CaC03 in liquid Instrumentation Batch Extracted 5/04/5 Date Analyzed 5/04/2 Analyst Grace Sison : ACK478 Collected: 5/04/4 Sample ID: WG RD6A Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic : ACK863 Collected: Sample ID: FILTERED BLANK Shipped: Matrix: Water Received: 5/04/4 Test Description Methylnaphthalene Sum ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/22 5/04/2 Analyst Milijana Avramovic : ACK864 Collected: Sample ID: FILTERED SPIKE Shipped: Matrix: Water Received: 5/04/4 Test Description ABN Compounds in Water by SIM GC/MS Instrumentation GC/MS Batch Extracted 5/04/ Date Analyzed 5/04/2 Analyst Milijana Avramovic Page 36 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

138 Maxxam Job #: B56588 Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR GENERAL COMMENTS Sample ACK864-0 : ABN analysis:data are reported as percentage recoveries. Results relate only to the items tested. Page 37 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

139 Maxxam Job #: B56588 Report Date: 5/04/23 QUALITY ASSURAE REPORT Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Parameter Date Matrix Spike Recovery QC Limits Spiked Blank Recovery QC Limits Method Blank Value Value () RPD QC Limits QC Standard Recovery QC Limits Bromofluorobenzene D4-,2-Dichloroethane D8-Toluene Decachlorobiphenyl 2,4,6-Tribromophenol 2-Fluorobiphenyl D4-Terphenyl (FS) D5-Nitrobenzene o-terphenyl,4-difluorobenzene 4-Bromofluorobenzene D0-Ethylbenzene D4-,2-Dichloroethane Total Suspended Solids Chromium (VI) Turbidity Acidity as CaC03 Free Cyanide Alkalinity (Total as CaCO3) Conductivity Fluoride (F-) ph Nitrate (N) Nitrite (N),,,2-Tetrachloroethane,,-Trichloroethane,,2,2-Tetrachloroethane,,2-Trichloroethane,-Dichloroethane 5/04/6 5/04/6 5/04/6 5/04/5 5/04/ 5/04/ 5/04/ 5/04/ 5/04/7 5/04/8 5/04/8 5/04/8 5/04/8 5/04/5 5/04/6 5/04/6 5/04/2 5/04/7 5/04/6 5/04/6 5/04/6 5/04/6 5/04/9 5/04/9 5/04/7 5/04/7 5/04/7 5/04/7 5/04/ <0 <0 <2 <.0 < <0.00 NTU umho/c m Page 38 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

140 Maxxam Job #: B56588 Report Date: 5/04/23 Parameter,-Dichloroethylene,2-Dichlorobenzene,2-Dichloroethane,2-Dichloropropane,3-Dichlorobenzene,4-Dichlorobenzene Acetone (2-Propanone) Benzene Bromodichloromethane Bromoform Bromomethane Carbon Tetrachloride Chlorobenzene Chloroform cis-,2-dichloroethylene cis-,3-dichloropropene Dibromochloromethane Dichlorodifluoromethane (FREON 2) Ethylbenzene Ethylene Dibromide Hexane Methyl Ethyl Ketone (2-Butanone) Methyl Isobutyl Ketone Methyl t-butyl ether (MTBE) Methylene Chloride(Dichloromethane) o-xylene p+m-xylene Styrene Tetrachloroethylene Toluene QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank <0 <.0 <0. <.0 <.0 <0 <5.0 <2.0 Value () RPD QC Limits QC Standard Recovery QC Limits Page 39 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

141 Maxxam Job #: B56588 Report Date: 5/04/ Parameter Total Xylenes trans-,2-dichloroethylene trans-,3-dichloropropene Trichloroethylene Trichlorofluoromethane (FREON ) Vinyl Chloride Dissolved Chloride (Cl) Orthophosphate (P) Dissolved Sulphate (SO4) Aroclor 242 Aroclor 248 Aroclor 254 Aroclor 260 Total PCB Dissolved Calcium (Ca) Dissolved Magnesium (Mg) Dissolved Potassium (K) Dissolved Sodium (Na) Total Ammonia-N Total Ammonia-N Total Organic Carbon (TOC) Mercury (Hg),2,4-Trichlorobenzene -Methylnaphthalene 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2,4-Dinitrotoluene QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/7 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/6 5/04/6 5/04/6 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank <0.40 < <0.00 < < 0 0 < <2 Value () RPD QC Limits QC Standard Recovery QC Limits Page 40 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

142 Maxxam Job #: B56588 Report Date: 5/04/ Parameter 2,6-Dinitrotoluene 2-Chlorophenol 2-Methylnaphthalene 3,3'-Dichlorobenzidine Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b/j)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Biphenyl Bis(2-chloroethyl)ether Bis(2-chloroisopropyl)ether Bis(2-ethylhexyl)phthalate Chrysene Dibenz(a,h)anthracene Diethyl phthalate Dimethyl phthalate Fluoranthene Fluorene Indeno(,2,3-cd)pyrene Naphthalene p-chloroaniline Pentachlorophenol Phenanthrene Phenol Pyrene Dissolved Organic Carbon QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank <0.0 < < Value () RPD QC Limits QC Standard Recovery QC Limits Page 4 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

143 Maxxam Job #: B56588 Report Date: 5/04/ Parameter Total Aluminum (Al) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Boron (B) Total Cadmium (Cd) Total Calcium (Ca) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Iron (Fe) Total Lead (Pb) Total Magnesium (Mg) Total Manganese (Mn) Total Molybdenum (Mo) Total Nickel (Ni) Total Phosphorus (P) Total Potassium (K) Total Selenium (Se) Total Silicon (Si) Total Silver (Ag) Total Sodium (Na) Total Strontium (Sr) Total Thallium (Tl) Total Titanium (Ti) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank <0.000 <0.00 <0.00 < < <0.00 < < , = <0.000 < < Value () RPD QC Limits QC Standard Recovery QC Limits Page 42 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

144 Maxxam Job #: B56588 Report Date: 5/04/ Parameter Total Zirconium (Zr) F2 (C0-C6 Hydrocarbons) F3 (C6-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) F (C6-C0) - BTEX F (C6-C0) Mercury (Hg) Total Phosphorus Dissolved Aluminum (Al) Dissolved Antimony (Sb) Dissolved Arsenic (As) Dissolved Barium (Ba) Dissolved Beryllium (Be) Dissolved Boron (B) Dissolved Cadmium (Cd) Dissolved Calcium (Ca) Dissolved Chromium (Cr) Dissolved Cobalt (Co) Dissolved Copper (Cu) Dissolved Iron (Fe) Dissolved Lead (Pb) Dissolved Magnesium (Mg) Dissolved Manganese (Mn) Dissolved Molybdenum (Mo) Dissolved Nickel (Ni) Dissolved Phosphorus (P) Dissolved Potassium (K) Dissolved Selenium (Se) Dissolved Silicon (Si) Dissolved Silver (Ag) QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Spiked Blank Date Recovery QC Limits Recovery QC Limits 5/04/ /04/ /04/ /04/ /04/8 5/04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/22 75 () Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank <0.000 <00 <0 <0 <25 <25 < <0.004 <0.000 <0.00 <0.00 < < <0.00 < < < Value () RPD QC Limits QC Standard Recovery 02 QC Limits 80 - Page 43 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

145 Maxxam Job #: B56588 Report Date: 5/04/23 Parameter = Not Applicable Dissolved Sodium (Na) Dissolved Strontium (Sr) Dissolved Thallium (Tl) Dissolved Titanium (Ti) Dissolved Uranium (U) Dissolved Vanadium (V) Dissolved Zinc (Zn) Dissolved Zirconium (Zr) Date 5/04/22 5/04/22 5/04/22 5/04/22 5/04/22 5/04/22 5/04/22 5/04/22 QUALITY ASSURAE REPORT(CONT'D) Matrix Spike Recovery QC Limits Spiked Blank Recovery Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement QC Limits Value Client Project #: CLARINGTON TS-SURFACE WER/ GROUND Site Location: WER Your P.O. #: 6400NR Method Blank 0 <0.000 < < Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. <0.000 QC Standard: A sample of known concentration prepared by an external agency under stringent conditions. Used as an independent check of method accuracy. 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. () Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria Value () 2.0 RPD QC Limits QC Standard Recovery (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). (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 ). QC Limits Page 44 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

146 Maxxam Job #: B56588 Report Date: 5/04/23 Client Project #: Site Location: CLARINGTON TS-SURFACE WER/ GROUND WER Your P.O. #: 6400NR VALIDION SIGNURE PAGE The analytical data and all QC contained in this report were reviewed and validated by the following individual(s). Ewa Pranjic, M.Sc., C.Chem, Scientific Specialist Grace Sison, B.Sc., C.Chem, Senior Project Manager - Petroleum Division Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5. of ISO/IEC 7025:05(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page. Page 45 of 47 Maxxam Analytics International Corporation o/a Maxxam Analytics 6740 Campobello Road, Mississauga, Ontario, L5N 2L8 Tel: (905) Toll-Free: Fax: (905)

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