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Phase 2 Environmental Site Assessment Site Name: RIDGEBACK CAMAO 12-25-54-25 Unique Well ID: 100/12-25-054-25W4/00 Surface: 12-25-054-25W4 Licence Number: 30923

Project #: RB.75.03 November 2022

1900, 700 – 2ND STREET SW CALGARY, AB, T2P 2W2 PHONE 403.991.1879 WWW.ARLETTA.CA

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

TABLE OF CONTENTS 1.

INTRODUCTION ........................................................................................................................................................ 1

SITE DESCRIPTION .................................................................................................................................................. 2 2.1.

LOCATION & INFRASTRUCTURE....................................................................................................................... 2

2.2.

PHYSIOGRAPHIC SETTING .............................................................................................................................. 2

2.2.1.

Land Use ................................................................................................................................................................... 2

2.2.2.

Topography & Drainage ............................................................................................................................................ 2

2.3.

HYDROGEOLOGIC SETTING ............................................................................................................................ 2

2.3.1.

Surficial Deposits....................................................................................................................................................... 2

2.3.2.

Bedrock ..................................................................................................................................................................... 3

2.3.4.

Regional Hydrogeology & Present Groundwater Use ............................................................................................... 3

2.4.

AREAS OF POTENTIAL ENVIRONMENTAL CONCERN AND POTENTIAL CONTAMINANTS OF CONCERN ................... 3

ASSESSMENT CRITERIA ......................................................................................................................................... 4

FIELD SAMPLING & METHODOLOGY ..................................................................................................................... 5

RESULTS & DISCUSSION ........................................................................................................................................ 5 5.1.

SOIL STRATIGRAPHY ...................................................................................................................................... 5

5.2.

LABORATORY SOIL ANALYSIS ......................................................................................................................... 6

5.2.1.

Background Soil Conditions ...................................................................................................................................... 6

5.2.2.

Southeast Corner EM Anomaly ................................................................................................................................. 6

5.2.3.

Well Centre & Associated Production Infrastructure ................................................................................................. 6

5.2.4.

Former AST Farms.................................................................................................................................................... 7

5.2.4.1

Northwest AST .......................................................................................................................................................... 7

5.2.4.2

Southeast AST .......................................................................................................................................................... 7

5.2.4.3

Southwest AST.......................................................................................................................................................... 8

5.2.5.

Cement Pit................................................................................................................................................................. 8

5.2.6.

Drilling Waste Disposal Area ..................................................................................................................................... 8

5.2.7.

Separator Building ..................................................................................................................................................... 9

5.4.

Quality Assurance & Quality Control ......................................................................................................................... 9

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

SUMMARY OF FINDINGS ....................................................................................................................................... 10

CONCLUSIONS ....................................................................................................................................................... 11

REFERENCES ......................................................................................................................................................... 12

CLOSURE ................................................................................................................................................................ 13

LIST OF FIGURES FIGURE 1:

AERIAL PHOTOGRAPH SHOWING SITE & SURROUNDING AREA

FIGURE 2:

DIAGRAM SHOWING APEC & BOREHOLE DRILLING LOCATIONS

FIGURE 3:

LOCATION OF SALINITY IMPACTS IN SOIL SAMPLES (JUNE 2022) LIST OF TABLES

TABLE 1:

SUMMARY OF SOIL SAMPLES SUBMITTED FOR ANALYSIS

TABLE 2:

LABORATORY MEASURED GRAIN SIZE ANALYSIS IN SOIL SAMPLES

TABLE 3:

LABORATORY MEASURED SALINITY & MAJOR IONS IN SOIL SAMPLES

TABLE 4:

LABORATORY MEASURED METALS IN SOIL SAMPLES

TABLE 5:

LABORATORY MEASURED PETROLEUM HYDROCARBON CONSTITUENTS IN SOIL SAMPLES

TABLE 6:

LABORATORY MEASURED POLYCYCLIC AROMATIC HYDROCARBONS IN SOIL SAMPLES

TABLE 7:

LABORATORY MEASURED GLYCOLS IN SOIL SAMPLES LIST OF APPENDICES

APPENDIX I:

SURVEY PLAN

APPENDIX II:

SITE PHOTOGRAPHS

APPENDIX III:

LOCAL GROUNDWATER USE

APPENDIX IV:

BOREHOLE LOGS

APPENDIX V:

LABORATORY CERTIFICATES OF ANALYSIS

APPENDIX VI:

GOVERNMENT OF ALBERTA PROFESSIONAL DECLARATION FOR RECLAMATION CERTIFICATE APPLICATIONS

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 1.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

INTRODUCTION

Arletta Environmental Consulting Corp. (Arletta) was retained by Ridgeback Resources Inc. (Ridgeback) to complete a Phase 2 Environmental Site Assessment (ESA) at the 12-25-054-25W4 location which includes the 100/12-25-054-25W4/00 well site, herein referred to as “the Site”. The objective of the Phase 2 ESA is to use a systematic approach to gather information on whether contamination can be found and, if so, determine the likelihood that the contamination is causing, or has the potential to cause, adverse effect(s) on persons and/or the environment. The scope of this Phase 2 ESA was to assess and delineate the Areas of Potential Environmental Concern (APEC) identified in the Arletta Phase 1 Environmental Site Assessment (Arletta 2022). During this assessment, soil stratigraphy was documented, and field soil samples were collected and submitted to a laboratory in order to assess and quantify potentially impacted areas. The purpose of this report is to analyze and present the data collected from the field and laboratory results and to assess the Site by comparing the results to applicable regulatory guideline values.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 2.

SITE DESCRIPTION

2.1.

LOCATION & INFRASTRUCTURE

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

The Site is located on Freehold land, located within Sturgeon County at 12-25-054-25W4, approximately 8.0 kilometres (km) northeast of St. Albert, Alberta, approximately 377 meters (m) southeast from the corner of the intersection of Township Road 554B and Range Road 251. An aerial photograph showing the Site and surrounding area is included as Figure 1. According to the survey, the lease is 106.68 m x 106.68 m and covers an area of approximately 1.14 hectares (ha). The lease is accessed via a 15 m wide, 47 m long, access road that approaches the Site from the north (Midwest Surveys Ltd. 1986). A survey plan is included in Appendix I. The 100/12-25-054-25W4/00 crude oil and sweet gas well was spud in 1966 and is licensed to Ridgeback. A detailed site diagram of the Site is presented as Figure 2. Site photographs are presented in Appendix II. All former infrastructure has been removed and the Site is currently cultivated with canola. 2.2.

PHYSIOGRAPHIC SETTING

2.2.1.

Land Use

As defined by Alberta Environment and Parks (AEP), the Site is currently classified as Industrial (AEP 2022a). The land use surrounding the Site and future land use at the Site is classified as Agricultural (Figure 1). 2.2.2.

Topography & Drainage

The surface elevation at the Site is approximately 689.2 metres above sea level (masl). The topography at the Site and surrounding area is undulating and low relief (Government of Alberta 2022a). The closest surface waterbody is an unnamed creek located 330 m southeast of the Site. The creek flows south into the Sturgeon River (Natural Resources Canada 2021, Figure 1). 2.3.

HYDROGEOLOGIC SETTING

2.3.1.

Surficial Deposits

Soils at the Site are represented by the Malmo (MMO) and Ponoka (POK) Soil Series. The MMO Series is characterized as a well-drained Eluviated Black Chernozem, developed on fine textured clay, silty clay and sandy clay. The POK Series is characterized as a well-drained Eluviated Black Chernozem, developed on medium-textured loam, silt loam and very fine sandy loam (Government of Alberta 2022a). The Additional 2008 Phase II Environmental Site Assessment (Matrix 2008) noted loam topsoil to a depth of approximately 0.30 mbgs, underlain by silty clay to a depth of approximately 7.50 mbgs with no indication of bedrock or water table.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 2.3.2.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Bedrock

The bedrock unit beneath the Site is the Horseshoe Canyon Formation. The Horseshoe Canyon Formation is a nonmarine to locally marginal marine formation comprised predominantly of pale grey, fine-to-very-fine grained, feldspathic sandstone interbedded with siltstone, bentonitic mudstone, carbonaceous mudstone, concretionary sideritic layers, and laterally continuous coal seams (Prior et al. 2013). 2.3.4.

Regional Hydrogeology & Present Groundwater Use

The AEP Alberta Water Well Information Database identified 10 registered groundwater users within a 1,000 m radius of the Site, including eight domestic water wells, one industrial water well, and one stock water well. The closest domestic well is located approximately 575 m to the Site (Government of Alberta 2022b). The results were not field verified as part of this study. Search results and copies of the groundwater well reports are provided in Appendix III. 2.4.

AREAS OF POTENTIAL ENVIRONMENTAL CONCERN AND POTENTIAL CONTAMINANTS OF CONCERN

The APEC and associated Potential Contaminants of Concern (PCoC) identified in the Phase 1 ESA (Arletta 2022) are summarized below and are illustrated in Figure 2. APEC

Location

PCoC

Well Centre & Associated Production Infrastructure

Well centre

Salinity, metals, Benzene, Toluene, Ethylbenzene, Xylenes (BTEX), Petroleum Hydrocarbon (PHC) Fractions 1-4 (F1-F4), glycols.

Former Aboveground Storage Tank (AST) Farms

On site in the northwest, southeast and southwest corners

Salinity, metals, BTEX, PHC F1-F4, glycols.

On Site DWDA

On site location unknown

Detailed salinity, metals, BTEX, PHC F1-F4, glycols.

Separator Building

South of well centre

Salinity, metals, BTEX, PHC F1-F4, glycols.

Cement Pit

Northeast corner of lease near access road

Detailed salinity, metals, BTEX, PHC F1-F4.

Southeast Corner EM Anomaly

Southeast corner of lease

Salinity, metals, BTEX, PHC F1-F4, Polycyclic Aromatic Hydrocarbons (PAH), glycols.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 3.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

ASSESSMENT CRITERIA

The Alberta Environment and Parks (AEP) Alberta Tier 1 and Tier 2 Soil and Groundwater Remediation Guidelines (AEP, 2022a & 2022b) are the principal documents addressing soil and groundwater quality at upstream oil and gas sites in Alberta. The guidelines applicable to each site are dependent on soil type, the character and extent of contamination and the location of the Site with respect to neighboring lands, nearby water body receptors, and the anticipated use for the groundwater. Guidelines exist for coarse-grained and fine-grained soil types. Coarse-grained soils are defined as having an average median grain size greater than 75 micrometres (µm) and fine-grained soils are defined as having an average median grain size less than 75 µm. The appropriate guidelines are selected based on the soil type that is likely to control contaminant migration at the Site. The particle size analysis showed that soils on site were deemed fine-grained, consisting of silty clay and sandy silt (See Section 5.1). Determination of regulatory criteria is also based on existing land use or development restrictions and requires that a Land Use Assessment (LUA) be conducted. While the production of oil and gas falls within an Industrial land use, given that the end land use for the Site and surrounding area is Agricultural, the guidelines applicable to Agricultural Land Use will be applied to all sample locations. Receptors and exposure pathways also need to be taken into consideration under AEP Guidelines. Under Tier 1 Guidelines all exposure pathways relevant to a given land use must be included, however, in some cases exposure pathways can be excluded by using a Tier 2 Approach. Mandatory use of Tier 2 Guidelines is required when the parameters upon which the Tier 1 Guidelines were developed are not satisfied. The assessment criteria used encompass the most sensitive receptors and exposure pathways, and no pathways or receptors have been excluded, thus the Tier 1 Approach has been determined to be most applicable at present. All conditions for the use of the Tier 1 Guidelines were satisfied at the Site. In summary, the applicable guidelines for soil and groundwater at the Site are the AEP Alberta Tier 1 Soil and Groundwater Remediation Guidelines for Agricultural Land Use, Fine-Grained Soil Type (AEP 2022a) as described above; herein referred to as “applicable guidelines”.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 4.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

FIELD SAMPLING & METHODOLOGY

Prior to drilling, Alberta One-Call underground utility requests were made (Ticket #20222404766). Arletta retained Hawkeye Line Locators, of Calgary, Alberta, to provide an independent sweep of buried utilities at the Site. From June 22nd to June 23rd, 2022, a total of 20 boreholes were advanced on site to a maximum depth of 12.0 mbgs using a drill rig and 150 millimetre (mm) (6-inch) solid stem augers supplied by Finco Environmental Group (Red Deer, Alberta). As the boreholes were advanced, the outer layer of the soil was removed, soil conditions were logged and soil samples were collected directly from the auger flights at regular intervals, when soil conditions changed, or if evidence of impacts was encountered. Drilling locations are presented in Figure 2. Soil samples were field screened for electrical conductivity (EC) using a Spectrum Technologies Field Scout Direct Soil EC Meter™ and for organic vapours using an RKI Eagle Organic Vapour Analyzer (OVA). The values of the field measured parameters are included in the borehole logs (Appendix IV). Soil samples were collected and transferred to laboratory supplied plastic bags for analysis of detailed salinity parameters, sieve analysis and metals, and were collected using TerracoreTM samplers and transferred to laboratory supplied glass vials pre-charged with methanol preservative for analysis of volatile petroleum hydrocarbons BTEX, and PHC F1, in laboratory supplied glassware for analysis of PHC F2 – F4, PAH, and glycol parameters. All samples were labelled, catalogued and placed in ice filled coolers and transported under Chain of Custody (COC) documentation to Bureau Veritas Laboratories (BV Labs) in Edmonton, Alberta for potential analysis. A summary of soil samples submitted for lab analysis is found in Table 1. 5.

RESULTS & DISCUSSION

Soil laboratory results are presented in Tables 2 to 7. Soil parameters that did not satisfy the applicable guidelines and their sampling locations are presented in Figure 3. Laboratory Certificates of Analysis are presented in Appendix V. 5.1.

SOIL STRATIGRAPHY

The soil stratigraphy encountered at the Site generally consists of approximately 0.50 m of topsoil over 1.0 to 3.0 m of silt, underlain by sandy silt with intermittent clay seams to the maximum depth of investigation of 12.0 mbgs. Detailed borehole logs are presented in Appendix IV. Bedrock and the water table were not encountered within the depth of investigation. Based on field observations and laboratory particle size analysis, the soil beneath the Site is predominately fine-grained (Table 2).

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 5.2.

LABORATORY SOIL ANALYSIS

5.2.1.

Background Soil Conditions

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

A total of seven soil samples from two borehole locations (BH22-01, BH22-02) were analyzed for detailed salinity and metals during the 2022 Phase 2 ESA. Concentrations of detailed salinity parameters satisfied the applicable guidelines (Table 3). The EC and SAR ratings of the background soil were within the good rating categories. Concentrations of metals satisfied the applicable guidelines (Table 4). 5.2.2.

Southeast Corner EM Anomaly

A total of 13 soil samples from two boreholes (BH22-03, BH22-04) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, PAHs and glycols from the EM anomaly in the southeast corner of the lease. The pH was below the applicable guidelines at 2.0-2.5 mbgs in borehole BH22-03, which was similar to background pH reported in the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008) and could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tang & Rengel 2003). Soluble chloride exceeded the applicable guidelines in borehole BH22-04 from 5.0 to 9.0 mbgs. The soluble chloride exceedance was vertically delineated above 3.0 mbgs and below 11.5 mbgs and laterally delineated to the south with BH2203. EC and SAR soil quality ratings ranged from good to poor in the samples with elevated sodium and chloride concentrations (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of PAH were below the laboratory detection limits and satisfied the applicable guidelines (Table 6). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). The results of this 2022 Phase 2 ESA combined with the 2008 EM survey and Phase 2 ESA results (Matrix 2008) provide vertical and lateral delineation in all directions, and there is an estimated 1,200 m3 of salinity impacted soil in the southeast corner EM anomaly area. 5.2.3.

Well Centre & Associated Production Infrastructure

A total of 8 soil samples from four boreholes (BH22-05 - BH22-08) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the well centre and associated production infrastructure area. Concentrations of detailed salinity parameters satisfied the applicable guidelines (Table 3).

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). The well centre and associated production infrastructure area is no longer considered an APEC. 5.2.4.

Former AST Farms

5.2.4.1 Northwest AST A total of six soil samples from three boreholes (BH22-09 - BH22-11) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the former AST farm in the northwest corner of the lease. Concentrations of salinity parameters satisfied the applicable guidelines with the exception of pH at 0-0.5 mbgs in BH2210. The low pH was similar to background pH reported in the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008) and could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tand & Rengel 2003). This low pH is not considered a CoC at the southwest AST area (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). The northwest AST farm area is no longer considered an APEC. 5.2.4.2 Southeast AST A total of three soil samples from one borehole (BH22-16) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the former AST farm in the southeast corner of the lease. Concentrations of salinity parameters satisfied the applicable guidelines, and the EC and SAR ratings ranged from good to fair (Table 3). The fair SAR rating is not associated with elevated sodium chloride from produced water, and is not considered a CoC for the APEC. Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). The southeast AST area is no longer considered an APEC.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

5.2.4.3 Southwest AST A total of four soil samples from two boreholes (BH22-19 & BH22-20) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4 and glycols from the former AST farm in the southwest corner of the lease. Concentrations of salinity parameters satisfied the applicable guidelines with the exception of pH values measured in BH2219 and BH22-20 which were slightly below the guidelines. These pH values were comparable to the background pH reported by the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008) and could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tang & Rengel 2003). This low pH is not considered a CoC at the southwest AST area (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). The southwest AST area is no longer considered an APEC. 5.2.5.

Cement Pit

A total of four soil samples from two boreholes (BH22-12 & BH22-13) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the cement pit in the northeast corner of the lease near the access road. The pH was below the applicable guidelines in borehole BH22-13. The pH was comparable to the background pH reported by the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008), and this could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tang & Rengel 2003). Low pH alone is not considered a CoC at the cement pit (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 and satisfied the applicable guidelines (Table 5). The cement pit area is no longer considered an APEC. 5.2.6.

Drilling Waste Disposal Area

A total of four samples taken from two boreholes (BH22-14 and BH22-15) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the potential on site DWDA. Concentrations of detailed salinity parameters satisfied the applicable guidelines (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5).

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7). There was no indication of DWDA material having been disposed or stored on site, from either this investigation or the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008) and the DWDA is no longer considered an APEC. 5.2.7.

Separator Building

A total of four soil samples from two boreholes (BH22-17 and BH22-18) were submitted for analysis of detailed salinity, metals, BTEX, PHC F1-F4, and glycols from the separator building location south of well centre. The pH was below the applicable guidelines at 0-0.5 mbgs in borehole BH22-17. The pH was comparable to the background pH reported by the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008), and this could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tang & Rengel 2003). This low pH alone is not considered a CoC at the separator building (Table 3). Concentrations of metals satisfied the applicable guidelines (Table 4). Concentrations of BTEX and PHC F1-F4 satisfied the applicable guidelines (Table 5). Concentrations of glycols were below the laboratory detection limits and satisfied the applicable guidelines (Table 7).

The separator building area is no longer considered an APEC. 5.4.

Quality Assurance & Quality Control

For Quality Assurance and Quality Control (QA/QC) purposes, BV Labs regularly uses calibration checks, surrogate matrix spikes, blanks and laboratory duplicates during analysis. The laboratory’s QA/QC measures were reviewed by Arletta and have been summarized as follows: •

Sample delivery, sample temperature and sample integrity were satisfactory;

•

Arletta specified instructions were followed and noted in the analytical reports;

•

Surrogate recoveries were within acceptable ranges; and

•

All laboratory blanks, calibration checks and sample replicates were found to be within the laboratory’s QC standards.

The above described procedures and analytical controls were met, and the analytical findings are accurate and dependable and meet the project requirements and industry standards.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 6.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

SUMMARY OF FINDINGS

A summary of the findings from the Phase 2 ESA conducted by Arletta at the Site in June 2022 are summarized below: •

The Phase 2 ESA addressed the APEC identified in the Phase 1 ESA (Arletta 2022) which includes: o o o o o o

•

Southeast Corner EM Anomaly Well Centre & Associated Production Infrastructure Former Northwest, Southeast and Southwest AST Areas Cement Pit DWDA Separator Building

Based on field borehole logs and laboratory particle size analysis, fine-grained soils were predominant at the Site. The applicable guidelines for soil and groundwater at the Site were the Alberta Tier 1 Soil and Groundwater Remediation Guidelines for Agricultural Land Use and Fine-Grained Soils (AEP 2022a).

•

The soil stratigraphy encountered at the Site generally consisted of 0.5 m of topsoil, over silt and sandy silt with intermittent clay seams.

•

Bedrock and the water table were not encountered within the depth of investigation of 12.0 mbgs.

•

Samples collected from the background boreholes satisfied the applicable guidelines for all salinity and metal parameters.

•

The soil acidity identified in surface soils across the Site was similar to background pH reported in the 2008 Additional Phase II Environmental Site Assessment (Matrix 2008), and this could be attributed to soil acidification accelerated by agricultural farming practices in the area (Tang & Rengel 2003). Marginally low pH at the Site are likely not reflective of any contamination of concern.

•

Concentrations of soluble chloride did not satisfy the applicable guidelines in the southeast EM anomaly area. The soluble chloride exceedance was vertically delineated above 3.0 mbgs and below 11.5 mbgs and laterally delineated in all directions when combined with the 2008 EM survey and Phase 2 ESA results (Matrix 2008), and there is an estimated 1,200 m3 of salinity impacted soil. EC and SAR soil quality ratings ranged from good to poor.

•

EC and SAR soil quality ratings across the remainder of the Site ranged from good to fair and were not associated with elevated sodium chloride or evidence of produced water impact due to oil and gas activity.

•

Concentrations of all other parameters across the Site satisfied the applicable guidelines, and all other areas investigated on site are no longer considered APEC.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 7.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

CONCLUSIONS

The Phase 2 ESA conducted at the Site in June 2022 investigated the previously identified APEC listed in the Phase 1 ESA (Arletta 2022). Results of field screening and laboratory analysis indicated soluble chloride impacts in one location within the southeast corner EM anomaly area. This was vertically delineated above 3.0 mbgs and below 11.5 mbgs. Lateral delineation was achieved in all directions when 2022 results are combined with the 2008 EM survey and Phase 2 ESA results (Matrix 2008), and there is an estimated 1,200 m3 of salinity impacted soil in situ. Concentrations of all other parameters at the well centre and associated production infrastructure, former AST farms, cement pit, potential DWDA and separator building areas satisfied the applicable guidelines, and are no longer considered APEC.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 8.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

REFERENCES

Alberta Environment and Parks (AEP). 2022a. Alberta Tier 1 Soil and Groundwater Remediation Guidelines. Land Policy Branch, Policy and Planning Division. 189 pp. Environment and Parks, Edmonton, Alberta. Alberta Environment and Parks (AEP). 2022b. Alberta Tier 2 Soil and Groundwater Remediation Guidelines. Land Policy Branch, Policy and Planning Division. 129 pp. Environment and Parks, Edmonton, Alberta. Arletta Environmental Consulting Corp. (Arletta). 2022. Phase 1 Environmental Site Assessment 12-25-054-25 W4M. Calgary, Alberta. Government of Alberta. 2022a. Alberta Soil Information Viewer. Agricultural Region of Alberta Soil Inventory Database (AGRASID), Ag-Info Centre, Stettler, Alberta. Accessed September 6, 2022. http://soil.agric.gov.ca/agrasidviewer Government of Alberta. 2022b. Alberta Water Wells Information Database (or Baseline Water Well Test Database). Government of Alberta. Accessed September 6, 2022. http://groundwater.alberta.ca/WaterWells/d/ Matrix Solutions Inc. 2008. Additional 2008 Phase II Environmental Site Assessment 100/12-25-054-25 W4M. Edmonton, Alberta. Midwest Surveys & Services Ltd. 1966. Oakland Namao 12-25-54-25 Well Site and Access Road L.S.12 Sec.25 Tp.54 Rge.25 W.4 M (River Lot 64). Midwest Surveys & Services Ltd., Calgary, Alberta. Natural Resources Canada. 2021. The Atlas of Canada – Toporama. Government of Canada. Accessed September 6, 2022. https://atlas.gc.ca/toporama/index.html Prior, G. J., B. Hathway, P. M. Glombick, D. I. Pana, C. J. Banks, D. C. Hay, C. L. Schneider, M. Grobe, R. Elgr, and J. A. Weiss. 2013. Bedrock Geology of Alberta. AER/AGS Map 600. Alberta Energy Regulator, Alberta Geological Survey, Edmonton, Alberta. Tang, C. and Z. Rengel. 2003. Role of Plant Cation/Anion Uptake Ratio in Soil Acidification, pages 57-82, Z. Rengel, editor. Handbook of Soil Acidity. Marcel Dekker Inc., New York, New York, USA.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03 9.

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

CLOSURE

In conducting our investigation and in providing our findings regarding the presence and extent of contamination at the property, Arletta Environmental Consulting Corp. relies on its best judgment based on its experience and in accordance with generally accepted industry techniques for investigation. This report is our interpretation of conditions observed through a specific scope of services. As a result, no warranty, expressed or implied, is given concerning the presence or absence of contamination at the property. Identification of contaminants and contaminant quantities have been based on information gathered during a limited program of field sampling and laboratory testing and on the experience and judgment of the assessors. The identification of these factors is subjective in nature. Even the most comprehensive sampling and testing programs may fail to locate some hidden and/or sub-surface conditions. This report has been prepared for the sole use of Ridgeback Resources Inc. Any third party that intends to rely on this report must obtain the prior written consent of Arletta Environmental Consulting Corp. Any use of, or reliance on, this report by a third party without the prior written consent of Arletta Environmental Consulting Corp. is the sole responsibility of any such third party. Arletta Environmental Consulting Corp., as author of this report, assumes no liability for damages whatsoever suffered by any party as a result of decisions made or actions taken based on this report. This limitation of liability includes decisions to either purchase or sell property. If you require any additional information, please feel free to contact the undersigned. A Government of Alberta Professional Declaration for Reclamation Certificate Applications is included in Appendix VI.

Arletta Environmental Consulting Corp.

Lora Amos-Terpstra, B.Sc., EP Environmental Scientist

Prepared by: Arletta Environmental Consulting Corp.

Christine Niemiec (Romman), B.Sc., P.Biol. Senior Environmental Scientist

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

FIGURES

Prepared by: Arletta Environmental Consulting Corp.

November 2022

680

680 Approximate Scale 1:5,030 Figure 1: Aerial Photograph Showing Approximate 100/12-25-054-25W4/00 Well Site & Access Road Boundary Site & Surrounding Area Approximate Well Centre Location Nearby Creeks/Rivers Surface Location: 12-25-054-25W4 Topographic Line (masl) Project #: RB.75.03 Date: November 2022 Source: Abacus Datagraphics 2022 Client: Ridgeback Resources Inc.

LEGEND

690

5952860

5952840

APEC: On site DWDA Location Unknown

APEC: Cement Pit

5952820 BH22-10

BH22-02

BH22-12

BH22-09

5952800

BH22-11

BH22-14

5952780

Northing

BH22-13

BH22-07

APEC: Well Centre & Associated Production Infrastructure

BH22-06 BH22-08

5952760

APEC: Former AST Farm

BH22-15 BH22-05

BH22-01

5952740 BH22-16

BH22-18

BH22-04

BH22-19 5952720

BH22-17

BH22-20

APEC: SE Corner EM Anomaly

BH22-03

APEC: Separator Building 5952700

330700

330720

330740

330760

330780

330800

330820

330840

330860

Easting

LEGEND

Approximate Scale: 1:1,150

Approximate 100/12-25-054-25W4/00 Well Site & Access Road Boundary Approximate Well Centre Location Borehole Drilling Location

Area of Potential Environmental Concern

Figure 2: Diagram Showing APEC & Borehole Drilling Locations

Surface Location: 12-25-054-25W4 Project #: RB.75.03 Date: November 2022 Image Source: Abacus Datagraphics 2022 Client: Ridgeback Resources Inc.

330880

330900

330920

330940

330960

5952860

5952840

APEC: On site DWDA Location Unknown

APEC: Cement Pit

5952820 BH22-10

BH22-02

BH22-12

BH22-09

5952800

APEC: Well Centre & Associated Production Infrastructure

BH22-11

BH22-14

5952780

Northing

BH22-13

BH22-07 BH22-06 BH22-08

5952760

APEC: Former AST Farm

BH22-15 BH22-05

BH22-01

5952740 BH22-16

BH22-18

BH22-04

BH22-19 5952720

BH22-17

BH22-20

BH22-03

APEC: SE Corner EM Anomaly

APEC: Separator Building 5952700

330700

330720

330740

330760

330780

330800

330820

330840

330860

Easting

LEGEND

Approximate Scale: 1:1,150

Approximate 100/12-25-054-25W4/00 Well Site & Access Road Boundary Approximate Well Centre Location Analytical Exceeded Applicable Standards Analytical Passed Applicable Standards Analytical Exceeded Applicable Standards - Naturally Occuring

Figure 3: Location of Salinity Impacts in Soil Samples (June 2022)

Surface Location: 12-25-054-25W4 Project #: RB.75.03 Date: November 2022 Image Source: Abacus Datagraphics 2022 Client: Ridgeback Resources Inc.

330880

330900

330920

330940

330960

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

TABLES

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 1: Summary of Soil Samples Submitted for Analysis Sample Location

Borehole Number BH22-01

Background BH22-02

BH22-03 Southeast Corner EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08 BH22-09

Northwest AST

BH22-10 BH22-11

Prepared By: Arletta Environmental Consulting Corp.

Sample Date Identifier (yyyy-mm-dd) BH22-01-0-0.25 2022/06/22 BH22-01-0.5-1 2022/06/22 BH22-01-2.5-3 2022/06/22 BH22-01-5-5.5 2022/06/22 BH22-02-0.25-0.5 2022/06/22 BH22-02-1-1.5 2022/06/22 BH22-02-5.5-6 2022/06/22 BH22-03-0.5-1 2022/06/22 BH22-03-2-2.5 2022/06/22 BH22-03-5-5.5 2022/06/22 BH22-03-7.5-8 2022/06/22 BH22-03-9-9.5 2022/06/22 BH22-03-11.50-12.00 2022/06/22 BH22-04-0.5-1 2022/06/22 BH22-04-1.5-2 2022/06/22 BH22-04-2.5-3 2022/06/22 BH22-04-5-5.5 2022/06/23 BH22-04-7-7.5 2022/06/23 BH22-04-8.5-9 2022/06/23 BH22-04-11.50-12.00 2022/06/23 BH22-05-1-1.5 2022/06/23 BH22-05-2.5-3 2022/06/23 BH22-06-0.5-1 2022/06/23 BH22-06-1.5-2 2022/06/23 BH22-07-1-1.5 2022/06/23 BH22-07-2-2.5 2022/06/23 BH22-08-0-0.5 2022/06/23 BH22-08-2-2.5 2022/06/23 BH22-09-0.5-1 2022/06/23 BH22-09-2.5-3 2022/06/23 BH22-10-0-0.5 2022/06/23 BH22-10-1-1.5 2022/06/23 BH22-11-0.5-1 2022/06/23 BH22-11-2.5-3 2022/06/23

Sample Depth Interval (mbgs) 0 - 0.25 0.5 - 1.0 2.5 - 3.0 5.0 - 5.5 0.25 - 0.5 1.0 - 1.5 5.5 - 6.0 0.5 - 1.0 2.0 - 2.5 5.5 - 6.0 7.5 - 8.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 1.5 - 2.0 2.5 - 3.0 5.0 - 5.5 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0 1.0 - 1.5 2.5 - 3.0 0.5 - 1.0 1.5 - 2.0 1.0 - 1.5 2.0 - 2.5 0 - 0.5 2.0 - 2.5 0.5 - 1.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Particle Size ----------X X -------------------------------------------------------

Detailed Salinity Parameters X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

Metals X X X X X X X X --X --X X X --X --X X X X X X X X X X X X X X X X X

BTEX --------------X --X --X X X --X --X X X X X X X X X X X X X X X X X

PHC F1 - F4 --------------X --X --X X X --X --X X X X X X X X X X X X X X X X X

PAH --------------X --X --X X X --X --X X X -----------------------------

Glycols --------------X --X --X X X --X --X X X X X X X X X X X X X X X X X

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 1: Summary of Soil Samples Submitted for Analysis Sample Location Cement Pit

DWDA Search

Southeast AST

Separator Building

Southwest AST

Borehole Number BH22-12 BH22-13 BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Sample Identifier BH22-12-1-1.5 BH22-12-2.5-3 BH22-13-0-0.5 BH22-13-2-2.5 BH22-14-1-1.5 BH22-14-2-2.5 BH22-15-1.5-2 BH22-15-2.5-3 BH22-16-1-1.5 BH22-16-1.5-2 BH22-16-2.5-3 BH22-17-0-0.5 BH22-17-2-2.5 BH22-18-1.5-2 BH22-18-2.5-3 BH22-19-0-0.5 BH22-19-1-1.5 BH22-20-0.5-1 BH22-20-2.5-3

Date (yyyy-mm-dd) 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

Sample Depth Interval (mbgs) 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.0 - 1.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 1.0 - 1.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Particle Size ---------------------------------------

Detailed Salinity Parameters X X X X X X X X X X X X X X X X X X X

Metals X X X X X X X X X --X X X X X X X X X

BTEX X X X X X X X X X --X X X X X X X X X

PHC F1 - F4 X X X X X X X X X --X X X X X X X X X

PAH ---------------------------------------

Glycols --------X X X X X --X X X X X X X X X

mbgs: metres below ground surface BTEX: Benzene, Ethylbenzene, Toluene and Xylene PHC F1 to F4: Petroleum Hydrocarbon F1 to F4 fractions PAH: Polycyclic Aromatic Hydrocarbons ---: Not Analyzed

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 2: Laboratory Measured Grain Size Analysis in Soil Samples Sample Location

Borehole Number

Background

BH22-02

Sample Identifier BH22-02-1-1.5 BH22-02-5.5-6

Date (yyyy-mm-dd) 2022/06/22 2022/06/22

mbgs: metres below ground surface *: Percentage of soil sample with particle size greater than 75 micrometres (µm) in diameter **: Grain size as defined in the Alberta Tier 1 Soil & Groundwater Remediation Guidelines (AEP, 2019a). mbgs: metres below groud surface

Prepared By: Arletta Environmental Consulting Corp.

Sample Depth Interval (mbgs) 1.0 - 1.5 5.5 - 6.0

Particle Size (% > 0.075 mm Sieve)* 0.78 1

Classification** FINE FINE

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 3: Laboratory Measured Salinity & Major Ions in Soil Samples

Sample Location

Borehole Number BH22-01

Background BH22-02

BH22-03

Southeast Corner EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08

Sample Identifier

Date (yyyy-mm-dd)

Sample Depth Interval (mbgs)

BH22-01-0-0.25 BH22-01-0.5-1 BH22-01-2.5-3 BH22-01-5-5.5 BH22-02-0.25-0.5 BH22-02-1-1.5 BH22-02-5.5-6 BH22-03-0.5-1 BH22-03-2-2.5 BH22-03-5-5.5 BH22-03-7.5-8 BH22-03-9-9.5 BH22-03-11.50-12.00 BH22-04-0.5-1 BH22-04-1.5-2 BH22-04-2.5-3 BH22-04-5-5.5 BH22-04-7-7.5 BH22-04-8.5-9 BH22-04-11.50-12.00 BH22-05-1-1.5 BH22-05-2.5-3 BH22-06-0.5-1 BH22-06-1.5-2 BH22-07-1-1.5 BH22-07-2-2.5 BH22-08-0-0.5 BH22-08-2-2.5

2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

0 - 0.25 0.5 - 1.0 2.5 - 3.0 5.0 - 5.5 0.25 - 0.5 1.0 - 1.5 5.5 - 6.0 0.5 - 1.0 2.0 - 2.5 5.5 - 6.0 7.5 - 8.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 1.5 - 2.0 2.5 - 3.0 5.0 - 5.5 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0 1.0 - 1.5 2.5 - 3.0 0.5 - 1.0 1.5 - 2.0 1.0 - 1.5 2.0 - 2.5 0 - 0.5 2.0 - 2.5

Calcium (Ca) pH 6.09 6.44 7.48 7.25 6.35 6.46 7.24 6.12 5.72 7.31 7.44 7.4 7.63 7.4 7.49 7.62 7.39 7.62 7.49 7.58 6.69 7.59 6.56 7.48 7.57 7.61 6.21 7.59

19 19 4.7 6.6 23 3.4 3.9 5 3.6 4.4 8.4 26 130 39 150 62 180 210 330 210 37 21 27 33 37 39 64 12

Magnesium (Mg) 4.3 4.5 2.2 2.5 6.7 0.83 1.9 1.7 0.78 1.1 1.2 2.1 12 9.3 26 14 37 44 68 17 8.9 4.1 6.2 9.4 7.9 12 14 2.6

Sodium (Na) mg/kg 14 15 15 8.9 11 11 8.8 17 9.9 6.4 5.8 75 14 13 14 12 92 370 92 17 14 13 15 19 16 11 13 9.5

Potassium (K) 1.6 0.76 2.8 3.8 1.8 <0.64 3.7 3.1 2.9 1.9 2.3 2.3 10 2.2 4.7 2.7 3.7 3.2 5.1 16 2.7 3.5 2.2 3.1 1.9 2.7 3.7 2.6

Sulphate (SO4)

Chloride (Cl)

Electrical Conductivity (EC)

Sodium Adsorption Ratio

32 61 17 30 19 12 26 20 18 11 12 210 520 63 430 210 240 590 490 710 34 39 34 63 82 24 34 10

9.1 <5.4 <4.5 <5.0 <5.7 <5.0 <3.9 <4.5 <4.5 <4.2 <3.5 12 26 7.4 <5.2 <5.2 300 490 360 24 <5.6 <5.0 <5.7 <4.9 <5.4 19 <6.4 <4.7

mg/L 14 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 27 65 13 <10 <10 530 900 690 55 <10 <10 <10 <10 <10 41 <10 <10

dS/m 0.35 0.45 0.21 0.26 0.48 0.17 0.25 0.30 0.16 0.19 0.23 1.20 1.80 0.67 1.60 0.93 3.00 5.40 4.70 2.40 0.71 0.51 0.51 0.72 0.68 0.86 0.90 0.34

(SAR) 0.97 1.1 2.1 1.1 0.7 1.9 1.5 2.5 1.8 1.1 0.84 5.7 0.51 0.64 0.39 0.51 2.2 8.3 1.7 0.47 0.7 0.94 0.91 1.1 0.87 0.6 0.48 0.94

SCARG Soil Quality Guidelines** Soil Horizon EC Rating SAR Rating Topsoil Good Good Subsoil Good Good Topsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Fair Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Fair Good Subsoil Poor Poor Subsoil Fair Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Subsoil Good Good Topsoil Good Good Subsoil Good Good

Notes:

mbgs: metres below ground surface *Alberta Tier 1 Soil & Groundwater Remediation Guidelines for Agricultural land Use, Fine-Grained Soil Type (AEP, 2019) **Saturated Paste <: not detected at a concentration greater than the laboratory reporting limit. Shaded cells indicate values that do not meet guideline values

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 3: Laboratory Measured Salinity & Major Ions in Soil Samples

Sample Location

Borehole Number BH22-09

Northwest AST

BH22-10 BH22-11

Cement Pit

DWDA Search

Southeast AST

Separator Building

Southwest AST Alberta Tier 1 Guidelines*

BH22-12 BH22-13 BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Sample Identifier

Date (yyyy-mm-dd)

Sample Depth Interval (mbgs)

BH22-09-0.5-1 BH22-09-2.5-3 BH22-10-0-0.5 BH22-10-1-1.5 BH22-11-0.5-1 BH22-11-2.5-3 BH22-12-1-1.5 BH22-12-2.5-3 BH22-13-0-0.5 BH22-13-2-2.5 BH22-14-1-1.5 BH22-14-2-2.5 BH22-15-1.5-2 BH22-15-2.5-3 BH22-16-1-1.5 BH22-16-1.5-2 BH22-16-2.5-3 BH22-17-0-0.5 BH22-17-2-2.5 BH22-18-1.5-2 BH22-18-2.5-3 BH22-19-0-0.5 BH22-19-1-1.5 BH22-20-0.5-1 BH22-20-2.5-3

2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

0.5 - 1.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.0 - 1.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 1.0 - 1.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Notes:

Calcium (Ca)

Magnesium (Mg)

pH 6.02 7.61 5.8 6.32 6.8 7.5 6.46 7.55 5.98 7.47 6.7 7.62 7.39 7.3 6.19 6.09 6.35 5.97 7.49 7.4 7.43 5.88 6.47 5.88 7.5 6.0 - 8.5

Sodium (Na)

Potassium (K)

mg/kg 16 5.5 44 6.9 54 3.9 3 8.2 9.4 4.5 20 6.8 1.9 2.9 5.3 4.4 1 22 4.3 11 4.4 53 14 17 26 NG

3.8 1.4 11 1.8 15 1.4 0.68 0.82 2.3 0.89 5.3 1.2 0 0 1.2 1.2 <0.42 5.6 1.3 2.7 0.99 12 2.9 5.4 5.1 NG

20 10 17 14 16 6.7 11 7.9 12 7.6 43 15 8.9 8.4 24 18 12 12 9.9 9.9 8.7 14 15 14 8.7 NG

0.98 1.8 4.5 1.1 2.5 0.94 <0.64 2.1 2.4 1.2 1.3 2.1 1 1.4 0.72 0.84 1 3.1 1.4 2.5 1.8 4.3 1.2 1.8 3.2 NG

Sulphate (SO4)

Chloride (Cl)

51 12 36 25 40 9.6 17 14 22 13 160 39 5.3 13 43 35 12 20 9.2 21 15 20 35 21 64 NG

5.5 <4.4 <6.3 8.5 <5.6 <4.4 <4.9 <4.5 <5.9 <4.5 <4.9 <4.5 <4.2 <4.3 5.2 <5.1 <4.2 <5.6 <4.5 <5.3 <4.1 <6.6 <5.6 25 5.9 NG

Chloride (Cl)

Electrical Conductivity (EC)

Sodium Adsorption Ratio

mg/L

dS/m

(SAR)

10 <10 <10 16 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 11 <10 <10 <10 <10 <10 <10 <10 <10 48 13 100

0.45 0.22 0.72 0.28 0.91 0.21 0.15 0.23 0.24 0.20 0.75 0.31 0.14 0.17 0.38 0.22 0.20 0.49 0.19 0.26 0.18 0.74 0.29 0.48 0.59 ---

1.6 1.5 0.75 1.7 0.65 1.1 2.1 1.1 1.2 1.3 3.2 2.1 2.7 2.1 3.5 2.8 5.3 0.78 1.6 0.97 1.5 0.55 1.3 1 0.59 ---

SCARG Soil Quality Guidelines** Soil Horizon EC Rating SAR Rating Subsoil Subsoil Topsoil Subsoil Topsoil Subsoil Subsoil Subsoil Topsoil Subsoil Subsoil Subsoil Subsoil Subsoil Subsoil Subsoil Subsoil Topsoil Subsoil Subsoil Subsoil Topsoil Subsoil Subsoil Subsoil ---

Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good ---

Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Good Fair Good Good Good Good Good Good Good Good ---

mbgs: metres below ground surface *Alberta Tier 1 Soil & Groundwater Remediation Guidelines for Agricultural land Use, Fine-Grained Soil Type (AEP, 2019) ** Alberta Tier 1 Salt Remediation Guidelines (AEP, 2019) ---: No Data/Not Sampled NG: No Guideline <: not detected at a concentration greater than the laboratory reporting limit. Shaded cells indicate values that do not meet guideline values

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 4: Laboratory Measured Metals in Soil Samples

Sample Location

Borehole Number BH22-01

Background BH22-02

BH22-03 Southeast Corner EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08

Sample Identifier BH22-01-0-0.25 BH22-01-0.5-1 BH22-01-2.5-3 BH22-01-5-5.5 BH22-02-0.25-0.5 BH22-02-1-1.5 BH22-02-5.5-6 BH22-03-0.5-1 BH22-03-5-5.5 BH22-03-9-9.5 BH22-03-11.50-12.00 BH22-04-0.5-1 BH22-04-2.5-3 BH22-04-7-7.5 BH22-04-8.5-9 BH22-04-11.50-12.00 BH22-05-1-1.5 BH22-05-2.5-3 BH22-06-0.5-1 BH22-06-1.5-2 BH22-07-1-1.5 BH22-07-2-2.5 BH22-08-0-0.5 BH22-08-2-2.5

Date (yyyy-mm-dd) 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

Sample Depth Antimony (Sb) Interval (mbgs) <0.50 0 - 0.25 <0.50 0.5 - 1.0 <0.50 2.5 - 3.0 <0.50 5.0 - 5.5 <0.50 0.25 - 0.5 <0.50 1.0 - 1.5 <0.50 5.5 - 6.0 <0.50 0.5 - 1.0 <0.50 5.5 - 6.0 <0.50 9.0 - 9.5 <0.50 11.5 - 12.0 <0.50 0.5 - 1.0 <0.50 2.5 - 3.0 <0.50 7.0 - 7.5 <0.50 8.5 - 9.0 <0.50 11.5 - 12.0 <0.50 1.0 - 1.5 <0.50 2.5 - 3.0 <0.50 0.5 - 1.0 <0.50 1.5 - 2.0 <0.50 1.0 - 1.5 <0.50 2.0 - 2.5 <0.50 0 - 0.5 <0.50 2.0 - 2.5

Arsenic (As)

Barium (non-barite)

BariteBarium

Beryllium (Be)

Boron** (B) mg/kg

Cadmium (Cd)

Hexavalent Chromium (Cr6+)

9.2 12 8.4 10 9.5 12 7.6 9.6 10 10 8.2 12 11 11 11 8.8 11 11 9.5 11 11 11 9.4 9.5

220 200 160 190 210 190 150 170 180 190 140 190 190 190 180 150 190 200 210 180 220 190 210 160

-------------------------------------------------

0.72 0.85 0.43 0.53 0.71 0.66 0.46 0.77 0.45 0.52 <0.40 0.65 0.59 0.67 0.66 0.42 0.68 0.46 0.64 0.53 0.66 0.42 0.6 0.43

0.16 0.084 <0.045 <0.050 0.062 <0.050 <0.039 0.2 <0.042 0.048 0.054 0.061 <0.052 0.088 0.06 0.074 0.2 0.088 0.25 0.055 <0.054 0.29 0.24 1

0.39 0.15 0.28 0.38 0.35 0.22 0.28 0.12 0.36 0.32 0.28 0.24 0.27 0.23 0.22 0.32 0.29 0.36 0.34 0.32 0.28 0.33 0.36 0.34

<0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080

Total Chromium (Cr)

Cobalt (Co)

21 25 14 17 21 21 13 25 15 16 12 21 19 23 22 13 21 16 23 18 22 14 21 14

10 12 8.8 10 10 11 7.1 11 9.5 7.8 7.5 11 9.9 10 10 8.6 11 9.7 10 10 11 9.1 9.8 8.6

Notes:

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 4: Laboratory Measured Metals in Soil Samples

Sample Location

Borehole Number BH22-09

Northwest AST

BH22-10 BH22-11

Cement Pit

DWDA Search Southeast AST Separator Building

Southwest AST Alberta Tier 1 Guidelines*

BH22-12 BH22-13 BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Sample Identifier BH22-09-0.5-1 BH22-09-2.5-3 BH22-10-0-0.5 BH22-10-1-1.5 BH22-11-0.5-1 BH22-11-2.5-3 BH22-12-1-1.5 BH22-12-2.5-3 BH22-13-0-0.5 BH22-13-2-2.5 BH22-14-1-1.5 BH22-14-2-2.5 BH22-15-1.5-2 BH22-15-2.5-3 BH22-16-1-1.5 BH22-16-2.5-3 BH22-17-0-0.5 BH22-17-2-2.5 BH22-18-1.5-2 BH22-18-2.5-3 BH22-19-0-0.5 BH22-19-1-1.5 BH22-20-0.5-1 BH22-20-2.5-3

Notes:

Sample Depth Antimony (Sb) Interval (mbgs) <0.50 0.5 - 1.0 <0.50 2.5 - 3.0 <0.50 0 - 0.5 <0.50 1.0 - 1.5 <0.50 0.5 - 1.0 <0.50 2.5 - 3.0 <0.50 1.0 - 1.5 <0.50 2.5 - 3.0 <0.50 0 - 0.5 <0.50 2.0 - 2.5 <0.50 1.0 - 1.5 <0.50 2.0 - 2.5 <0.50 1.5 - 2.0 <0.50 2.5 - 3.0 0.51 1.0 - 1.5 <0.50 2.5 - 3.0 <0.50 0 - 0.5 <0.50 2.0 - 2.5 0.53 1.5 - 2.0 <0.50 2.5 - 3.0 <0.50 0 - 0.5 0.56 1.0 - 1.5 <0.50 0.5 - 1.0 <0.50 2.5 - 3.0 20

Arsenic (As)

Barium (non-barite)

BariteBarium

Beryllium (Be)

Boron** (B) mg/kg

Cadmium (Cd)

Hexavalent Chromium (Cr6+)

10 12 9.3 12 11 12 12 9.9 10 12 12 10 10 11 13 11 9.5 11 12 8.7 10 13 9.6 10 17

210 190 210 180 210 200 180 170 220 210 180 190 180 190 200 170 220 190 190 180 220 220 170 190 750

------------------------------------------------10000

0.8 0.48 0.68 0.64 0.7 0.52 0.63 0.43 0.77 0.54 0.52 0.43 0.42 0.45 0.68 0.55 0.76 0.55 0.6 0.48 0.75 0.86 0.87 0.53 5

0.22 0.049 0.18 0.21 0.15 <0.044 <0.049 <0.045 0.075 <0.045 <0.049 <0.045 <0.042 <0.043 0.12 0.05 0.11 <0.045 <0.053 <0.041 0.093 <0.056 <0.053 <0.047 3.3

0.17 0.51 0.42 0.21 0.24 0.38 0.2 0.3 0.32 0.34 0.24 0.3 0.32 0.37 0.12 0.36 0.28 0.34 0.33 0.33 0.39 0.24 0.15 0.34 1.4

<0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 <0.080 0.4

Total Chromium (Cr)

Cobalt (Co)

25 14 20 20 23 17 20 13 25 16 17 14 14 16 23 16 27 16 20 15 22 25 29 16 64

12 10 9.8 11 11 10 11 9 11 9.6 9.9 8.7 8.4 9.9 12 9.6 11 9.7 11 9.4 11 12 11 9.6 20

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 4: Laboratory Measured Metals in Soil Samples

Sample Location

Borehole Number BH22-01

Background BH22-02

BH22-03 Southeast Corner EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08

Sample Depth Interval (mbgs) 0 - 0.25 0.5 - 1.0 2.5 - 3.0 5.0 - 5.5 0.25 - 0.5 1.0 - 1.5 5.5 - 6.0 0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0 1.0 - 1.5 2.5 - 3.0 0.5 - 1.0 1.5 - 2.0 1.0 - 1.5 2.0 - 2.5 0 - 0.5 2.0 - 2.5

Copper (Cu)

Lead (Pb)

Mercury (Hg)

Molybdenum (Mo)

Nickel (Ni)

Selenium (Se)

Silver (Ag) mg/kg

Thallium (Tl)

Tin (Sn)

Uranium (U)

Vanadium (V)

Zinc (Zn)

22 31 16 21 21 28 14 25 19 21 14 25 43 23 24 17 24 20 22 19 25 19 21 17

12 15 9.5 11 13 13 9.4 13 11 11 8.6 13 11 11 12 9.6 13 12 14 11 13 11 12 11

0.14 0.083 0.057 0.064 0.05 0.084 0.058 0.055 0.068 0.057 <0.050 0.058 0.056 0.057 0.052 0.051 0.056 0.06 0.061 <0.050 0.065 0.063 <0.050 0.064

0.95 1.2 1.2 1.3 1 1.2 1.4 1 1.3 1.4 1 1.2 1.3 1.2 1.1 1.1 1.1 1.4 1.1 1.3 1.4 1.4 1 1.5

28 31 23 26 27 32 19 29 24 24 20 30 28 29 30 23 29 25 28 27 31 24 27 23

0.81 0.66 <0.50 0.73 0.74 0.62 0.62 0.6 0.52 12 0.82 0.63 0.58 0.62 0.53 0.83 0.63 0.6 0.76 <0.50 0.61 0.55 0.71 0.51

<0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20

0.19 0.25 0.19 0.25 0.22 0.25 0.21 0.25 0.26 0.23 0.2 0.23 0.23 0.24 0.22 0.22 0.21 0.27 0.2 0.22 0.25 0.25 0.18 0.26

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0

0.86 0.96 1 1.1 0.95 0.89 1.1 1 1 1.1 1.3 0.88 0.89 0.92 0.84 1.4 0.84 1 0.9 0.82 0.97 0.96 0.85 0.92

37 44 24 28 37 39 23 40 26 27 20 34 33 36 33 22 35 27 35 30 34 25 34 24

92 88 68 80 88 88 66 77 75 79 61 85 130 79 80 71 88 77 89 82 84 75 90 71

Notes:

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 4: Laboratory Measured Metals in Soil Samples

Sample Location

Borehole Number BH22-09

Northwest AST

BH22-10 BH22-11

Cement Pit

DWDA Search Southeast AST Separator Building

Southwest AST Alberta Tier 1 Guidelines*

BH22-12 BH22-13 BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Notes:

Sample Depth Interval (mbgs) 0.5 - 1.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.0 - 1.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Copper (Cu)

Lead (Pb)

Mercury (Hg)

Molybdenum (Mo)

Nickel (Ni)

Selenium (Se)

Silver (Ag) mg/kg

Thallium (Tl)

Tin (Sn)

Uranium (U)

Vanadium (V)

Zinc (Zn)

26 20 22 26 24 21 26 18 24 20 22 18 17 20 30 22 24 22 26 16 26 30 26 19 63

14 11 12 13 14 12 13 9.8 14 12 12 10 11 11 15 12 13 12 13 9.8 18 15 13 11 70

0.053 0.053 <0.050 0.053 0.063 0.081 0.093 <0.050 <0.050 0.068 0.067 0.061 0.065 0.056 0.087 0.071 <0.050 0.075 0.077 0.063 0.055 0.083 0.058 0.073 6.6

0.96 1.9 1 1.2 1.2 1.4 1.3 1.3 1.1 1.7 1.3 1.3 1.4 1.4 1.4 1.6 0.97 1.6 1.4 1.2 1.1 1.2 1.2 1.5 4

31 28 28 32 30 28 31 24 30 24 28 23 23 27 28 27 30 25 30 24 29 37 30 25 45

0.56 0.59 0.72 <0.50 0.66 0.64 0.56 <0.50 0.72 0.69 0.55 0.55 <0.50 0.62 0.64 <0.50 0.58 0.71 0.53 0.55 0.8 0.58 0.53 <0.50 1

<0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 <0.20 20

0.23 0.32 0.19 0.24 0.25 0.28 0.28 0.23 0.25 0.27 0.24 0.23 0.23 0.24 0.26 0.31 0.22 0.29 0.3 0.22 0.21 0.29 0.22 0.28 1

<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5

0.9 1.1 0.88 0.86 0.96 1 0.92 0.83 0.97 1 0.89 0.99 0.89 1 1 1.2 0.98 1 0.92 1.1 0.84 0.96 0.92 1 23

42 27 35 34 39 30 36 23 41 32 31 25 25 29 39 29 40 30 35 26 37 45 41 28 130

83 81 100 91 85 82 88 71 93 81 79 73 72 80 91 82 87 80 88 71 97 98 76 75 250

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 5: Laboratory Measured Petroleum Hydrocarbon Constituents in Soil Samples Sample Location

Borehole Number BH22-03

Southeast EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08 BH22-09

Northwest AST

BH22-10 BH22-11

Sample Identifier

Date (yyyy-mm-dd)

Sample Depth Interval (mbgs)

BH22-03-0.5-1 BH22-03-5-5.5 BH22-03-9-9.5 BH22-03-11.50-12.00 BH22-04-0.5-1 BH22-04-2.5-3 BH22-04-7-7.5 BH22-04-8.5-9 BH22-04-11.50-12.00 BH22-05-1-1.5 BH22-05-2.5-3 BH22-06-0.5-1 BH22-06-1.5-2 BH22-07-1-1.5 BH22-07-2-2.5 BH22-08-0-0.5 BH22-08-2-2.5 BH22-09-0.5-1 BH22-09-2.5-3 BH22-10-0-0.5 BH22-10-1-1.5 BH22-11-0.5-1 BH22-11-2.5-3

2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/22 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0 1.0 - 1.5 2.5 - 3.0 0.5 - 1.0 1.5 - 2.0 1.0 - 1.5 2.0 - 2.5 0 - 0.5 2.0 - 2.5 0.5 - 1.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Surface Soil Subsoil Surface Subsoil Subsoil Subsoil Surface Surface Subsoil Subsoil Subsoil Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface

Benzene Toluene Ethylbenzene <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050

<0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050

<0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010

Xylenes PHC F1 PHC F2 PHC F3 PHC F4 (Total) (C6-C10 Minus BTEX) (C11-C16) (C17-C34) (C35-C50+) mg/kg <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 58 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 12 75 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 93 59 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50 <0.045 <10 <10 <50 <50

Notes:

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 5: Laboratory Measured Petroleum Hydrocarbon Constituents in Soil Samples Sample Location Cement Pit

DWDA Search Southeast AST Separator Building

Southwest AST

Borehole Number BH22-12 BH22-13 BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Alberta Tier 1 Surface Soil Guidelines* Alberta Tier 1 Subsoil Soil Guidelines*

Sample Identifier

Date (yyyy-mm-dd)

Sample Depth Interval (mbgs)

BH22-12-1-1.5 BH22-12-2.5-3 BH22-13-0-0.5 BH22-13-2-2.5 BH22-14-1-1.5 BH22-14-2-2.5 BH22-15-1.5-2 BH22-15-2.5-3 BH22-16-1-1.5 BH22-16-2.5-3 BH22-17-0-0.5 BH22-17-2-2.5 BH22-18-1.5-2 BH22-18-2.5-3 BH22-19-0-0.5 BH22-19-1-1.5 BH22-20-0.5-1 BH22-20-2.5-3

2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23 2022/06/23

1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.0 - 1.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Notes:

Surface Soil Subsoil Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface Surface

Benzene Toluene Ethylbenzene

Xylenes PHC F1 PHC F2 PHC F3 PHC F4 (Total) (C6-C10 Minus BTEX) (C11-C16) (C17-C34) (C35-C50+) mg/kg

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.046 0.046

<0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 <0.045 0.099 0.99

<0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 <0.050 0.52 0.52

<0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 0.073 0.073

<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 210 420

<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 150 300

<50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 130 <50 <50 <50 1,300 2,600

<50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 94 <50 <50 <50 5,600 10,000

mbgs: metres below ground surface *Alberta Tier 1 Soil & Groundwater Remediation Guidelines for Agricultural land Use, Fine-Grained Soil Type (AEP, 2019) <: not detected at a concentration greater than the laboratory reporting limit. Shaded cells indicate values that do not meet guideline values

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 6: Laboratory Measured Polycyclic Aromatic Hydrocarbons in Soil Samples

Sample Location

Borehole Number BH22-03

Southeast Corner EM Anomaly BH22-04

Alberta Tier 1 Guidelines*

Sample Depth Interval (mbgs) 0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0

Notes:

Acenaphthene

Acenaphthylene

Anthracene

Fluoranthene mg/kg

Fluorene

Naphthalene

Phenanthrene

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.33

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 NG

<0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 1.3

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 15.4

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.4

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.014

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.11

mbgs: metres below ground surface *Alberta Tier 1 Soil & Groundwater Remediation Guidelines for Agricultural land Use, Fine-Grained Soil Type (AEP, 2019) NG: No Guideline <: not detected at a concentration greater than the laboratory reporting limit. Shaded cells indicate values that do not meet guideline values

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 6: Laboratory Measured Polycyclic Aromatic Hydrocarbons in Soil Samples

Sample Location

Borehole Number BH22-03

Southeast Corner EM Anomaly BH22-04

Alberta Tier 1 Guidelines*

Sample Depth Interval (mbgs) 0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0

Pyrene

Benz(a) anthracene

Benzo(b+j) fluoranthene

Benzo(k) fluoranthene mg/kg

Benzo(g,h,i) perylene

Benzo(a) pyrene

Chrysene

<0.0050 <0.0050 <0.0050 0.0097 <0.0050 <0.0050 <0.0050 <0.0050 0.013 7.7

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 6.2

<0.0050 <0.0050 <0.0050 0.013 <0.0050 <0.0050 <0.0050 <0.0050 0.017 6.2

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 6.2

<0.0050 <0.0050 <0.0050 0.0091 <0.0050 <0.0050 <0.0050 <0.0050 0.0098 NG

<0.0050 <0.0050 <0.0050 0.0083 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.6

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 6

Notes:

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Table 6: Laboratory Measured Polycyclic Aromatic Hydrocarbons in Soil Samples

Sample Location

Borehole Number BH22-03

Southeast Corner EM Anomaly BH22-04

Alberta Tier 1 Guidelines*

Sample Depth Interval (mbgs) 0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0

Dibenz(a,h) anthracene

Indeno(1,2,3-c,d) pyrene

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 NG

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.0073 NG

Quinoline 1-Methylnaphthalene mg/kg <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 <0.010 NG

<0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 NG

2-Methylnaphthalene <0.0050 0.0064 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 NG

Notes:

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100) Table 7: Laboratory Measured Glycols in Soil Samples Sample Location

Borehole Number BH22-03

Southeast Corner EM Anomaly BH22-04

BH22-05 Well Centre & Associated Production Infrastructure

BH22-06 BH22-07 BH22-08 BH22-09

NortheastAST

BH22-10 BH22-11

DWDA Search Southeast AST Separator Building

Southwest AST Alberta Tier 1 Guidelines*

BH22-14 BH22-15 BH22-16 BH22-17 BH22-18 BH22-19 BH22-20

Sample Date Identifier (yyyy-mm-dd) BH22-03-0.5-1 2022/06/22 BH22-03-5-5.5 2022/06/22 BH22-03-9-9.5 2022/06/22 BH22-03-11.50-12.00 2022/06/22 BH22-04-0.5-1 2022/06/22 BH22-04-2.5-3 2022/06/22 BH22-04-7-7.5 2022/06/23 BH22-04-8.5-9 2022/06/23 BH22-04-11.50-12.00 2022/06/23 BH22-05-1-1.5 2022/06/23 BH22-05-2.5-3 2022/06/23 BH22-06-0.5-1 2022/06/23 BH22-06-1.5-2 2022/06/23 BH22-07-1-1.5 2022/06/23 BH22-07-2-2.5 2022/06/23 BH22-08-0-0.5 2022/06/23 BH22-08-2-2.5 2022/06/23 BH22-09-0.5-1 2022/06/23 BH22-09-2.5-3 2022/06/23 BH22-10-0-0.5 2022/06/23 BH22-10-1-1.5 2022/06/23 BH22-11-0.5-1 2022/06/23 BH22-11-2.5-3 2022/06/23 BH22-14-1-1.5 2022/06/23 BH22-14-2-2.5 2022/06/23 BH22-15-1.5-2 2022/06/23 BH22-15-2.5-3 2022/06/23 BH22-16-1-1.5 2022/06/23 BH22-16-2.5-3 2022/06/23 BH22-17-0-0.5 2022/06/23 BH22-17-2-2.5 2022/06/23 BH22-18-1.5-2 2022/06/23 BH22-18-2.5-3 2022/06/23 BH22-19-0-0.5 2022/06/23 BH22-19-1-1.5 2022/06/23 BH22-20-0.5-1 2022/06/23 BH22-20-2.5-3 2022/06/23

Sample Depth Interval 0.5 - 1.0 5.5 - 6.0 9.0 - 9.5 11.5 - 12.0 0.5 - 1.0 2.5 - 3.0 7.0 - 7.5 8.5 - 9.0 11.5 - 12.0 1.0 - 1.5 2.5 - 3.0 0.5 - 1.0 1.5 - 2.0 1.0 - 1.5 2.0 - 2.5 0 - 0.5 2.0 - 2.5 0.5 - 1.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0 1.0 - 1.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 1.0 - 1.5 2.5 - 3.0 0 - 0.5 2.0 - 2.5 1.5 - 2.0 2.5 - 3.0 0 - 0.5 1.0 - 1.5 0.5 - 1.0 2.5 - 3.0

Ethylene Glycol

Propylene Glycol

<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 60

<10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 NG

Diethylene Glycol mg/kg <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 <9.0 10

Triethylene Glycol <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 100

Notes:

*Alberta Tier 1 Soil & Groundwater Remediation Guidelines for Agricultural land Use, Fine-Grained Soil Type (AEP, 2019) mbgs: metres below ground surface NG: No Guideline <: not detected at a concentration greater than the laboratory reporting limit. Shaded cells indicate values that do not meet guideline values

Prepared By: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

APPENDICES

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix I: Survey Plan

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix II: Site Photographs

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 1, June 22, 2022: View of the Site access before Phase 2 ESA drilling, facing north.

Photograph 2, June 22, 2022: View of the Site and access before Phase 2 ESA drilling, facing north.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 3, June 23, 2022: View from the well centre before Phase 2 ESA drilling, facing north.

Photograph 4, June 23, 2022: View from the well centre before Phase 2 ESA drilling, facing east.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 5, June 23, 2022: View from the well centre before Phase 2 ESA drilling, facing south.

Photograph 6, June 23, 2022: View from the well centre before Phase 2 ESA drilling, facing west.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 7, June 23, 2022: View of the soil profile at BH22-10 (1.50 to 3.00 mbgs).

Photograph 8, June 23, 2022: View of the soil profile at BH22-12 (0 to 1.50 mbgs).

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 9, June 23, 2022: View of soil profile at BH22-19 (0 to 1.50 mbgs).

Photograph 10, June 23, 2022: View from the well centre after Phase 2 ESA drilling, facing north.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 11, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing east.

Photograph 12, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing south.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 133, June 23, 2022: View of the well centre after Phase 2 ESA drilling, facing west.

Photograph 144, June 23, 2022: View from the south edge of the Site after Phase 2 ESA drilling, facing north.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 155, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing northeast.

Photograph 16, June 23, 2022: View from the middle of Site after Phase 2 ESA drilling, facing east.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 17, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing southeast.

Photograph 18, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing south.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Photograph 19, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing south-southwest.

Photograph 20, June 23, 2022: View of the Site after Phase 2 ESA drilling, facing west.

Prepared by: Arletta Environmental Consulting Corp.

November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix III: Local Groundwater Use

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix IV: Borehole Logs

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November 2022

Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix V: Laboratory Certificates of Analysis

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November 2022

Your P.O. #: 9220571CS Your Project #: RB.75.03 Site#: 100/12-25-054-25W4/00 Site Location: 12-25-054-25 W4M Your C.O.C. #: 50224

Attention: Labs Arletta Environmental Consulting 1900, 700 – 2nd Street SW Calgary, AB Canada T2P 2W2

Report Date: 2022/08/13 Report #: R3215548 Version: 2 - Revision

CERTIFICATE OF ANALYSIS – REVISED REPORT BUREAU VERITAS JOB #: C246792 Received: 2022/06/25, 13:16 Sample Matrix: Soil # Samples Received: 53 Analyses Alcohol in Soil by GC/FID Alcohol in Soil by GC/FID Alcohol in Soil by GC/FID Alcohol in Soil by GC/FID BTEX/F1 by HS GC/MS/FID (MeOH extract) (1) BTEX/F1 by HS GC/MS/FID (MeOH extract) (1) BTEX/F1 by HS GC/MS/FID (MeOH extract) (1) BTEX/F1 by HS GC/MS/FID (MeOH extract) (1) F1-BTEX F1-BTEX F1-BTEX Cation/EC Ratio Cation/EC Ratio Cation/EC Ratio Cation/EC Ratio Chloride (Soluble) Chloride (Soluble) Chloride (Soluble) Hexavalent Chromium (2) Hexavalent Chromium (2) Conductivity @25C (Soluble) Conductivity @25C (Soluble) Conductivity @25C (Soluble) CCME Hydrocarbons (F2-F4 in soil) (3) CCME Hydrocarbons (F2-F4 in soil) (3) Glycols in Soil by GC/FID

Date Date Quantity Extracted Analyzed Laboratory Method 1 2022/07/05 2022/07/06 CAL SOP-00264 17 2022/07/06 2022/07/06 CAL SOP-00264 12 2022/07/06 2022/07/07 CAL SOP-00264 6 2022/07/06 2022/07/08 CAL SOP-00264 1 N/A 2022/07/09 AB SOP-00039 16 N/A 2022/07/13 AB SOP-00039 4 N/A 2022/07/14 AB SOP-00039 20 N/A 2022/07/15 AB SOP-00039 1 N/A 2022/07/10 20 N/A 2022/07/14 20 N/A 2022/07/15 20 N/A 2022/07/08 27 N/A 2022/07/09 1 N/A 2022/07/10 5 N/A 2022/08/13 40 2022/07/08 2022/07/08 AB SOP-00033 / AB SOP00020 8 2022/07/08 2022/07/09 AB SOP-00033 / AB SOP00020 5 2022/08/12 2022/08/12 AB SOP-00033 / AB SOP00020 39 2022/07/06 2022/07/06 AB SOP-00063 9 2022/07/06 2022/07/07 AB SOP-00063 39 2022/07/08 2022/07/08 AB SOP-00033 / AB SOP00004 9 2022/07/08 2022/07/09 AB SOP-00033 / AB SOP00004 5 2022/08/12 2022/08/12 AB SOP-00033 / AB SOP00004 20 2022/07/05 2022/07/08 AB SOP-00036 21 2022/07/06 2022/07/07 AB SOP-00036 2 2022/07/05 2022/07/06 CAL SOP-00093 Page 1 of 104

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Analytical Method BCMOE Alco 09/17 BCMOE Alco 09/17 BCMOE Alco 09/17 BCMOE Alco 09/17 CCME CWS/EPA 8260d m CCME CWS/EPA 8260d m CCME CWS/EPA 8260d m CCME CWS/EPA 8260d m Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc SM 23-4500-Cl-E m SM 23-4500-Cl-E m SM 23-4500-Cl-E m SM 23 3500-Cr B m SM 23 3500-Cr B m SM 23 2510 B m SM 23 2510 B m SM 23 2510 B m CCME PHC-CWS m CCME PHC-CWS m BCMOE Glycols 09/17

Your P.O. #: 9220571CS Your Project #: RB.75.03 Site#: 100/12-25-054-25W4/00 Site Location: 12-25-054-25 W4M Your C.O.C. #: 50224

Attention: Labs Arletta Environmental Consulting 1900, 700 – 2nd Street SW Calgary, AB Canada T2P 2W2

Report Date: 2022/08/13 Report #: R3215548 Version: 2 - Revision

CERTIFICATE OF ANALYSIS – REVISED REPORT BUREAU VERITAS JOB #: C246792 Received: 2022/06/25, 13:16 Sample Matrix: Soil # Samples Received: 53 Analyses Glycols in Soil by GC/FID Glycols in Soil by GC/FID Elements by ICPMS - Soils Elements by ICPMS - Soils Sum of Cations, Anions Sum of Cations, Anions Sum of Cations, Anions Moisture Moisture Benzo[a]pyrene Equivalency Benzo[a]pyrene Equivalency PAH in Soil by GC/MS PAH in Soil by GC/MS pH @25C (1:2 Calcium Chloride Extract) pH @25C (1:2 Calcium Chloride Extract) pH @25C (1:2 Calcium Chloride Extract) Particle Size by Sieve (75 micron) Particle Size by Sieve Sodium Adsorption Ratio Sodium Adsorption Ratio Sodium Adsorption Ratio Soluble Ions Soluble Ions

Date Date Quantity Extracted Analyzed Laboratory Method 17 2022/07/06 2022/07/06 CAL SOP-00093 18 2022/07/06 2022/07/07 CAL SOP-00093 20 2022/07/08 2022/07/08 AB SOP-00001 / AB SOP00043 28 2022/07/08 2022/07/09 AB SOP-00001 / AB SOP00043 20 N/A 2022/07/08 28 N/A 2022/07/09 5 N/A 2022/08/13 27 N/A 2022/07/06 AB SOP-00002 21 N/A 2022/07/07 AB SOP-00002 7 N/A 2022/07/06 2 N/A 2022/07/08 7 2022/07/05 2022/07/06 AB SOP-00036 / AB SOP00003 2 2022/07/06 2022/07/07 AB SOP-00036 / AB SOP00003 20 2022/07/08 2022/07/08 AB SOP-00033 / AB SOP00006 28 2022/07/09 2022/07/09 AB SOP-00033 / AB SOP00006 5 2022/08/12 2022/08/12 AB SOP-00033 / AB SOP00006 2 N/A 2022/07/08 2 N/A 2022/07/08 AB SOP-00022 20 N/A 2022/07/08 28 N/A 2022/07/09 5 N/A 2022/08/13 40 2022/07/08 2022/07/08 AB SOP-00033 / AB SOP00042 8 2022/07/08 2022/07/09 AB SOP-00033 / AB SOP00042

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Analytical Method BCMOE Glycols 09/17 BCMOE Glycols 09/17 EPA 6020b R2 m EPA 6020b R2 m Auto Calc Auto Calc Auto Calc CCME PHC-CWS m CCME PHC-CWS m Auto Calc Auto Calc EPA 3540C/8270E m EPA 3540C/8270E m SM 23 4500 H+B m SM 23 4500 H+B m SM 23 4500 H+B m Auto Calc ASTM D6913-17 m Auto Calc Auto Calc Auto Calc EPA 6010d R5 m EPA 6010d R5 m

Your P.O. #: 9220571CS Your Project #: RB.75.03 Site#: 100/12-25-054-25W4/00 Site Location: 12-25-054-25 W4M Your C.O.C. #: 50224

Attention: Labs Arletta Environmental Consulting 1900, 700 – 2nd Street SW Calgary, AB Canada T2P 2W2

Report Date: 2022/08/13 Report #: R3215548 Version: 2 - Revision

CERTIFICATE OF ANALYSIS – REVISED REPORT BUREAU VERITAS JOB #: C246792 Received: 2022/06/25, 13:16 Sample Matrix: Soil # Samples Received: 53 Analyses Soluble Ions Soluble Paste Soluble Paste Soluble Boron Calculation Soluble Boron Calculation Soluble Ions Calculation Soluble Ions Calculation Soluble Ions Calculation Theoretical Gypsum Requirement (4) Theoretical Gypsum Requirement (4) Theoretical Gypsum Requirement (4)

Date Date Quantity Extracted Analyzed Laboratory Method 5 2022/08/12 2022/08/12 AB SOP-00033 / AB SOP00042 48 2022/07/08 2022/07/08 AB SOP-00033 5 2022/08/12 2022/08/12 AB SOP-00033 20 N/A 2022/07/08 28 N/A 2022/07/09 27 N/A 2022/07/06 21 N/A 2022/07/07 5 N/A 2022/08/12 20 N/A 2022/07/08 28 N/A 2022/07/09 5 N/A 2022/08/13

Analytical Method EPA 6010d R5 m Carter 2nd ed 15.2 m Carter 2nd ed 15.2 m Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc Auto Calc

Remarks: Bureau Veritas is accredited to ISO/IEC 17025 for specific parameters on scopes of accreditation. Unless otherwise noted, procedures used by Bureau Veritas are based upon recognized Provincial, Federal or US method compendia such as CCME, MELCC, EPA, APHA. All work recorded herein has been done in accordance with procedures and practices ordinarily exercised by professionals in Bureau Veritas' profession using accepted testing methodologies, quality assurance and quality control procedures (except where otherwise agreed by the client and Bureau Veritas in writing). All data is in statistical control and has met quality control and method performance criteria unless otherwise noted. All method blanks are reported; unless indicated otherwise, associated sample data are not blank corrected. Where applicable, unless otherwise noted, Measurement Uncertainty has not been accounted for when stating conformity to the referenced standard. Bureau Veritas liability is limited to the actual cost of the requested analyses, unless otherwise agreed in writing. There is no other warranty expressed or implied. Bureau Veritas has been retained to provide analysis of samples provided by the Client using the testing methodology referenced in this report. Interpretation and use of test results are the sole responsibility of the Client and are not within the scope of services provided by Bureau Veritas, unless otherwise agreed in writing. Bureau Veritas is not responsible for the accuracy or any data impacts, that result from the information provided by the customer or their agent. Solid sample results, except biota, are based on dry weight unless otherwise indicated. Organic analyses are not recovery corrected except for isotope dilution methods. Results relate to samples tested. When sampling is not conducted by Bureau Veritas, results relate to the supplied samples tested. This Certificate shall not be reproduced except in full, without the written approval of the laboratory. 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.

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Your P.O. #: 9220571CS Your Project #: RB.75.03 Site#: 100/12-25-054-25W4/00 Site Location: 12-25-054-25 W4M Your C.O.C. #: 50224

Attention: Labs Arletta Environmental Consulting 1900, 700 – 2nd Street SW Calgary, AB Canada T2P 2W2

Report Date: 2022/08/13 Report #: R3215548 Version: 2 - Revision

CERTIFICATE OF ANALYSIS – REVISED REPORT BUREAU VERITAS JOB #: C246792 Received: 2022/06/25, 13:16 (1) No lab extraction date is given for F1BTEX & VOC samples that are field preserved with methanol. Extraction date is date sampled unless otherwise stated. (2) Some soil samples may react with the Cr(VI) spike reducing it to Cr(III). These samples are highly unlikely to contain native hexavalent chromium. Thus a failed spike recovery does not invalidate a negative result on the native sample. (3) All CCME results met required criteria unless otherwise stated in the report. The CWS PHC methods employed by Bureau Veritas 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 Alberta Environment’s Interpretation of the Reference Method for the Canada-Wide Standard for Petroleum Hydrocarbons in Soil, Validation of Performance-Based Alternative Methods September 2003. Documentation is available upon request. Modifications from Reference Method for the Canada-wide Standard for Petroleum Hydrocarbons in Soil-Tier 1 Method: F2/F3/F4 data reported using validated cold solvent extraction instead of Soxhlet extraction. (4) TGR calculation is based on a theoretical SAR of 4. Salt Contamination and Assessment and remediation guideline 2001 recommended SAR is ranging 4-8. TGR is reported in tonnes/ha.

Encryption Key Please direct all questions regarding this Certificate of Analysis to your Project Manager. Brody Andersen, B.Sc., B.Sc., Program Specialist–Emergency Spill Response Email: Brody.Andersen@bureauveritas.com Phone# (780)577-7120 ==================================================================== Bureau Veritas has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per ISO/IEC 17025, signing the reports. For Service Group specific validation please refer to the Validation Signature Page.

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Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Boron (B) Calculated Chloride (Cl) Calculated Sulphate (SO4) Elements Hex. Chromium (Cr 6+) Soluble Parameters Soluble Boron (B) Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

UNITS

AWG681 2022/06/22 50224 220622-BH22-01-0-0.25

AWG683 2022/06/22 50224 RDL 220622-BH22-01-0.5-1 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.5 3.1 9.0 19 4.3 14 1.6 0.16 9.1 32

N/A N/A 0.10 0.95 0.63 1.6 0.82 0.063 6.3 3.2

2.4 3.7 8.2 19 4.5 15 0.76 0.084 <5.4 61

N/A A630005 N/A A630005 0.10 A629992 0.81 A630019 0.54 A630019 1.3 A630019 0.70 A630019 0.054 A630015 5.4 A630019 2.7 A630019

mg/kg

<0.080

0.080

<0.080

0.080 A635100

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.25 14 0.35 6.09 0.97 30 6.9 23 2.5 63 51 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.16 <10 0.45 6.44 1.1 35 8.4 28 1.4 54 110 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A630011 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630026

RDL = Reportable Detection Limit N/A = Not Applicable

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Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number

AWG685 2022/06/22 50224

UNITS Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Boron (B) Calculated Chloride (Cl) Calculated Sulphate (SO4) Elements Hex. Chromium (Cr 6+) Soluble Parameters Soluble Boron (B) Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

AWG687 2022/06/22 50224

AWG687 2022/06/22 50224 220622-BH22-01-5-5.5 220622-BH22-01-2.5-3 RDL 220622-BH22-01-5-5.5 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.77 2.5 12 4.7 2.2 15 2.8 <0.045 <4.5 17

N/A N/A 0.10 0.67 0.45 1.1 0.58 0.045 4.5 2.2

1.3 2.0 7.9 6.6 2.5 8.9 3.8 <0.050 <5.0 30

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A A630005 N/A A630005 0.10 A629992 0.75 A630019 0.50 A630019 1.2 A630019 0.65 A630019 0.050 A630015 5.0 A630019 2.5 A630019

mg/kg

<0.080

0.080

<0.080

N/A

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.21 7.48 2.1 11 4.8 33 6.2 45 37 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 <10 0.26 7.25 1.1 13 4.9 18 7.6 50 60 <0.20

<0.10 <10 0.29 7.27 N/A 17 6.4 20 8.6 52 76 N/A

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A630011 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630026

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

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Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

UNITS

AWG689 2022/06/22 50224 220622-BH22-02-0.25-0.5

AWG691 2022/06/22 50224 RDL 220622-BH22-02-1-1.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.68 3.9 8.2 23 6.7 11 1.8 0.062 <5.7 19

N/A N/A 0.10 0.85 0.57 1.4 0.74 0.057 5.7 2.8

0.50 1.4 8.4 3.4 0.83 11 <0.64 <0.050 <5.0 12

N/A A630005 N/A A630005 0.10 A629992 0.74 A630019 0.50 A630019 1.2 A630019 0.64 A630019 0.050 A630015 5.0 A630019 2.5 A630019

mg/kg

<0.080

0.080

<0.080

0.080 A635100

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.11 <10 0.48 6.35 0.70 41 12 20 3.2 57 33 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 <10 0.17 6.46 1.9 6.9 1.7 21 <1.3 50 24 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A630011 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630026

N/A % % %

N/A N/A N/A N/A

FINE <0.20 0.78 99

N/A 0.20 0.20 0.20

RDL = Reportable Detection Limit N/A = Not Applicable

Page 7 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

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A628142 A637119 A637119 A637119

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number

AWG693 2022/06/22 50224

AWG694 2022/06/22 50224

AWG694 2022/06/22 50224 220622-BH22-03-0.5-1 220622-BH22-02-5.5-6 RDL 220622-BH22-03-0.5-1 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.4 2.1 8.5 3.9 1.9 8.8 3.7 <0.039 <3.9 26

N/A N/A 0.10 0.58 0.39 0.97 0.51 0.039 3.9 1.9

0.93 2.7 8.8 5.0 1.7 17 3.1 0.20 <4.5 20

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A A630005 N/A A630005 0.10 A629992 0.67 A630019 0.45 A630019 1.1 A630019 0.58 A630019 0.045 A630015 4.5 A630019 2.2 A630019

mg/kg

<0.080

0.080

<0.080

0.080 A635100

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.25 7.24 1.5 10 5.0 23 9.4 39 66 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.45 <10 0.30 6.12 2.5 11 3.7 37 7.0 45 45 <0.20

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A630011 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630026

N/A % % %

FINE 0.26 1.0 99

N/A 0.20 0.20 0.20

N/A N/A N/A N/A

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 8 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

A628142 A637119 A637119 A637119

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number UNITS Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Boron (B) Calculated Chloride (Cl) Calculated Sulphate (SO4) Elements Hex. Chromium (Cr 6+) Soluble Parameters Soluble Boron (B) Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

AWG695 AWG696 2022/06/22 2022/06/22 50224 50224 220622-BH22-03-2-2.5 RDL QC Batch 220622-BH22-03-5-5.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.83 1.7 10 3.6 0.78 9.9 2.9 N/A <4.5 18

N/A N/A 0.10 0.68 0.45 1.1 0.59 N/A 4.5 2.3

A659744 A659744 A659733 A659930 A659930 A659930 A659930 N/A A659930 A659930

0.53 1.5 7.9 4.4 1.1 6.4 1.9 <0.042 <4.2 11

N/A A630005 N/A A630005 0.10 A629988 0.64 A630019 0.42 A630019 1.1 A630019 0.55 A630019 0.042 A630015 4.2 A630019 2.1 A630019

mg/kg

N/A

<0.080

0.080 A635100

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

N/A <10 0.16 5.72 1.8 7.9 1.7 22 6.5 45 40 <0.20

N/A N/A 10 A679289 0.020 A679267 N/A A677982 0.10 A659750 1.5 A679188 1.0 A679188 2.5 A679188 1.3 A679188 N/A A677981 5.0 A679188 0.20 A659767

<0.10 <10 0.19 7.31 1.1 10 2.6 15 4.5 42 25 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A630011 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630026

RDL = Reportable Detection Limit N/A = Not Applicable

Page 9 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number

AWG697 2022/06/22 50224

UNITS Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Chloride (Cl) Calculated Sulphate (SO4) Soluble Parameters Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

AWG697 2022/06/22 50224 220622-BH22-03-7.5-8 220622-BH22-03-7.5-8 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.73 2.4 10 8.4 1.2 5.8 2.3 <3.5 12

N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A N/A 0.10 0.52 0.35 0.87 0.45 3.5 1.7

mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<10 0.23 7.44 0.84 24 3.4 17 6.6 35 35 <0.20

<10 0.24 7.45 N/A 25 2.8 16 6.5 36 34 N/A

10 A679289 0.020 A679267 N/A A677982 0.10 A659750 1.5 A679188 1.0 A679188 2.5 A679188 1.3 A679188 N/A A677981 5.0 A679188 0.20 A659767

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 10 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

A659744 A659744 A659733 A659930 A659930 A659930 A659930 A659930 A659930

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number

AWG698 2022/06/22 50224 UNITS

Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Boron (B) Calculated Chloride (Cl) Calculated Sulphate (SO4) Elements Hex. Chromium (Cr 6+) Soluble Parameters Soluble Boron (B) Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

220622-BH22-03-9-9.5 RDL

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

11 11 9.0 26 2.1 75 2.3 0.048 12 210

N/A N/A 0.10 0.66 0.44 1.1 0.57 0.044 4.4 2.2

28 21 11 130 12 14 10 0.054 26 520

N/A A630005 N/A A630005 0.10 A629988 0.61 A630019 0.41 A630019 1.0 A630019 0.53 A630019 0.041 A630015 4.1 A630019 2.0 A630019

mg/kg

<0.080

0.080

<0.080

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.11 27 1.2 7.40 5.7 60 4.8 170 5.2 44 480 0.25

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.13 65 1.8 7.63 0.51 320 30 35 25 41 1300 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630026

RDL = Reportable Detection Limit N/A = Not Applicable

Page 11 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number

AWG700 2022/06/22 50224

AWG700 2022/06/22 50224 220622-BH22-04-0.5-1 220622-BH22-04-0.5-1 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

2.7 6.1 9.0 39 9.3 13 2.2 0.061 7.4 63

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A A630005 N/A A630005 0.10 A629988 0.83 A630019 0.55 A630019 1.4 A630019 0.72 A630019 0.055 A630015 5.5 A630019 2.8 A630019

mg/kg

<0.080

N/A

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.11 13 0.67 7.40 0.64 71 17 23 4.0 55 110 <0.20

<0.10 13 0.64 7.36 N/A 68 16 24 3.8 53 110 N/A

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A630011 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630026

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 12 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG701 AWG702 2022/06/22 2022/06/22 50224 50224 220622-BH22-04-1.5-2 RDL QC Batch 220622-BH22-04-2.5-3 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

17 20 12 150 26 14 4.7 N/A <5.2 430

N/A N/A 0.10 0.77 0.52 1.3 0.67 N/A 5.2 2.6

A659744 A659744 A659733 A659930 A659930 A659930 A659930 N/A A659930 A659930

8.5 9.3 10 62 14 12 2.7 <0.052 <5.2 210

N/A A630005 N/A A630005 0.10 A629988 0.78 A630019 0.52 A630019 1.3 A630019 0.67 A630019 0.052 A630015 5.2 A630019 2.6 A630019

mg/kg

N/A

<0.080

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

N/A <10 1.6 7.49 0.39 280 50 27 9.1 52 840 <0.20

N/A N/A 10 A679289 0.020 A679267 N/A A677982 0.10 A659750 1.5 A679188 1.0 A679188 2.5 A679188 1.3 A679188 N/A A677981 5.0 A679188 0.20 A659767

<0.10 <10 0.93 7.62 0.51 120 26 24 5.3 52 410 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630026

RDL = Reportable Detection Limit N/A = Not Applicable

Page 13 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

RESULTS OF CHEMICAL ANALYSES OF SOIL Bureau Veritas ID Sampling Date COC Number UNITS Calculated Parameters Anion Sum Cation Sum Cation/EC Ratio Calculated Calcium (Ca) Calculated Magnesium (Mg) Calculated Sodium (Na) Calculated Potassium (K) Calculated Chloride (Cl) Calculated Sulphate (SO4) Elements Hex. Chromium (Cr 6+) Soluble Parameters Soluble Chloride (Cl) Soluble Conductivity Soluble (CaCl2) pH Sodium Adsorption Ratio Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Saturation % Soluble Sulphate (SO4) Theoretical Gypsum Requirement

AWG702 AWG703 2022/06/22 2022/06/22 50224 50224 220622-BH22-04-2.5-3 RDL QC Batch 220622-BH22-04-5-5.5 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A N/A 0.10 0.78 0.52 1.3 0.67 5.2 2.6

A630005 A630005 A629988 A630019 A630019 A630019 A630019 A630019 A630019

24 28 9.5 180 37 92 3.7 300 240

N/A N/A 0.10 0.85 0.57 1.4 0.74 5.7 2.8

A659744 A659744 A659733 A659930 A659930 A659930 A659930 A659930 A659930

mg/kg

<0.080

0.080 A634912

N/A

mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630026

530 3.0 7.39 2.2 310 65 160 6.5 57 420 <0.20

10 A679289 0.020 A679267 N/A A677982 0.10 A659750 1.5 A679188 1.0 A679188 2.5 A679188 1.3 A679188 N/A A677981 5.0 A679188 0.20 A659767

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 14 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG704 AWG705 2022/06/22 2022/06/22 50224 50224 220622-BH22-04-7-7.5 RDL QC Batch 220622-BH22-04-8.5-9 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

48 56 10 210 44 370 3.2 0.088 490 590

N/A A630004 N/A A630004 0.10 A629988 0.81 A630019 0.54 A630019 1.4 A630019 0.70 A630019 0.054 A630015 5.4 A630019 2.7 A630019

39 49 11 330 68 92 5.1 0.060 360 490

N/A A630004 N/A A630004 0.10 A629988 0.79 A630019 0.53 A630019 1.3 A630019 0.69 A630019 0.053 A630015 5.3 A630019 2.6 A630019

mg/kg

<0.080

0.080 A634912

<0.080

0.080 A634823

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.16 900 5.4 7.62 8.3 390 81 690 5.9 54 1100 7.8

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

0.11 690 4.7 7.49 1.7 620 130 170 9.6 53 930 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A630011 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 15 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

AWG708 2022/06/23 50224 RDL QC Batch 220623-BH22-05-1-1.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

36 30 12 210 17 17 16 0.074 24 710

N/A A630004 N/A A630004 0.10 A629988 0.65 A630019 0.43 A630019 1.1 A630019 0.56 A630019 0.043 A630015 4.3 A630019 2.2 A630019

1.3 5.9 8.2 37 8.9 14 2.7 0.20 <5.6 34

N/A A630004 N/A A630004 0.10 A629988 0.84 A630019 0.56 A630019 1.4 A630019 0.72 A630019 0.056 A629817 5.6 A630019 2.8 A630019

mg/kg

<0.080

0.080 A634912

<0.080

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.17 55 2.4 7.58 0.47 490 39 40 38 43 1600 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A630011 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

0.37 <10 0.71 6.69 0.70 67 16 24 4.8 56 61 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A630011 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 16 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG710 AWG711 AWG712 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 220623-BH22-05-2.5-3 RDL 220623-BH22-06-0.5-1 RDL 220623-BH22-06-1.5-2 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.6 4.1 8.1 21 4.1 13 3.5 0.088 <5.0 39

N/A N/A 0.10 0.75 0.50 1.2 0.65 0.050 5.0 2.5

1.2 4.5 8.8 27 6.2 15 2.2 0.25 <5.7 34

N/A N/A 0.10 0.85 0.57 1.4 0.74 0.057 5.7 2.8

2.7 6.8 9.4 33 9.4 19 3.1 0.055 <4.9 63

N/A A630004 N/A A630004 0.10 A629988 0.74 A630019 0.49 A630019 1.2 A630019 0.64 A630019 0.049 A629817 4.9 A630019 2.5 A630019

mg/kg

<0.080

0.080

<0.080

0.080

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.18 <10 0.51 7.59 0.94 43 8.2 26 6.9 50 78 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.44 <10 0.51 6.56 0.91 47 11 27 3.8 57 59 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.11 <10 0.72 7.48 1.1 68 19 38 6.3 49 130 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 17 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG712 AWG715 AWG716 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 220623-BH22-06-1.5-2 RDL 220623-BH22-07-1-1.5 RDL 220623-BH22-07-2-2.5 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A N/A 0.10 0.74 0.49 1.2 0.64 0.049 4.9 2.5

3.2 6.1 9.0 37 7.9 16 1.9 <0.054 <5.4 82

N/A N/A 0.10 0.81 0.54 1.3 0.70 0.054 5.4 2.7

2.2 7.4 8.6 39 12 11 2.7 0.29 19 24

N/A A630004 N/A A630004 0.10 A629988 0.70 A630019 0.47 A630019 1.2 A630019 0.61 A630019 0.047 A629817 4.7 A630019 2.3 A630019

mg/kg

<0.080

0.080

<0.080

0.080

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 <10 0.68 7.57 0.87 70 15 31 3.6 54 150 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.63 41 0.86 7.61 0.60 83 25 24 5.8 47 51 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 18 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG717 AWG719 AWG720 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 220623-BH22-08-0-0.5 RDL 220623-BH22-08-2-2.5 RDL 220623-BH22-09-0.5-1 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.1 7.8 8.7 64 14 13 3.7 0.24 <6.4 34

N/A N/A 0.10 0.97 0.64 1.6 0.84 0.064 6.4 3.2

0.46 2.8 8.2 12 2.6 9.5 2.6 1.0 <4.7 10

N/A N/A 0.10 0.70 0.47 1.2 0.61 0.047 4.7 2.3

2.2 3.6 8.2 16 3.8 20 0.98 0.22 5.5 51

N/A A630004 N/A A630004 0.10 A629988 0.83 A630019 0.55 A630019 1.4 A630019 0.72 A630019 0.055 A629817 5.5 A630019 2.8 A630019

mg/kg

<0.080

0.080

<0.080

0.080

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.38 <10 0.90 6.21 0.48 99 22 20 5.8 64 53 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

2.2 <10 0.34 7.59 0.94 26 5.6 20 5.6 47 22 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.41 10 0.45 6.02 1.6 29 6.9 37 1.8 55 93 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A630011 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 19 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG722 AWG723 2022/06/23 2022/06/23 50224 50224 220623-BH22-09-2.5-3 RDL 220623-BH22-10-0-0.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.54 2.0 9.0 5.5 1.4 10 1.8 0.049 <4.4 12

N/A N/A 0.10 0.66 0.44 1.1 0.57 0.044 4.4 2.2

1.2 6.3 8.8 44 11 17 4.5 0.18 <6.3 36

N/A A630004 N/A A630004 0.10 A629988 0.95 A630019 0.63 A630019 1.6 A630019 0.82 A630019 0.063 A629817 6.3 A630019 3.2 A630019

mg/kg

<0.080

0.080

<0.080

0.080 A634823

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.11 <10 0.22 7.61 1.5 12 3.2 23 4.0 44 26 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.29 <10 0.72 5.80 0.75 70 18 27 7.2 63 58 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A630011 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 20 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG724 AWG726 2022/06/23 2022/06/23 50224 50224 220623-BH22-10-1-1.5 RDL QC Batch 220623-BH22-11-0.5-1 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.4 2.1 7.6 6.9 1.8 14 1.1 0.21 8.5 25

N/A A630004 N/A A630004 0.10 A629988 0.80 A630019 0.54 A630019 1.3 A630019 0.70 A630019 0.054 A629817 5.4 A630019 2.7 A630019

1.5 8.3 9.1 54 15 16 2.5 0.15 <5.6 40

N/A A630004 N/A A630004 0.10 A629988 0.84 A629823 0.56 A629823 1.4 A629823 0.73 A629823 0.056 A629817 5.6 A629823 2.8 A629823

mg/kg

<0.080

0.080 A634823

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.39 16 0.28 6.32 1.7 13 3.3 27 2.1 54 47 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A629829 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

0.26 <10 0.91 6.80 0.65 96 26 28 4.4 56 71 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 21 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG726 AWG728 2022/06/23 2022/06/23 50224 50224 220623-BH22-11-0.5-1 RDL QC Batch 220623-BH22-11-2.5-3 RDL QC Batch Lab-Dup

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

N/A A630004 N/A A630004 0.10 A629988 0.84 A629823 0.56 A629823 1.4 A629823 0.73 A629823 0.056 A629817 5.6 A629823 2.8 A629823

0.45 1.4 6.9 3.9 1.4 6.7 0.94 <0.044 <4.4 9.6

N/A A630004 N/A A630004 0.10 A629988 0.66 A629823 0.44 A629823 1.1 A629823 0.57 A629823 0.044 A629817 4.4 A629823 2.2 A629823

mg/kg

N/A

0.080 A634943

<0.080

0.080 A634823

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.26 <10 0.91 6.79 N/A 90 24 25 3.5 57 57 N/A

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

<0.10 <10 0.21 7.50 1.1 8.9 3.1 15 2.1 44 22 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630025

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 22 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG729 AWG731 2022/06/23 2022/06/23 50224 50224 220623-BH22-12-1-1.5 RDL QC Batch 220623-BH22-12-2.5-3 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.70 1.4 9.3 3.0 0.68 11 <0.64 <0.049 <4.9 17

N/A A630004 N/A A630004 0.10 A629988 0.74 A629823 0.49 A629823 1.2 A629823 0.64 A629823 0.049 A629817 4.9 A629823 2.5 A629823

0.66 2.0 8.7 8.2 0.82 7.9 2.1 <0.045 <4.5 14

N/A A630004 N/A A630004 0.10 A629988 0.67 A629823 0.45 A629823 1.1 A629823 0.58 A629823 0.045 A629817 4.5 A629823 2.2 A629823

mg/kg

<0.080

0.080 A634823

<0.080

0.080 A634823

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.15 6.46 2.1 6.1 1.4 22 <1.3 49 34 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630025

<0.10 <10 0.23 7.55 1.1 18 1.8 18 4.7 45 32 <0.20

0.10 A638601 10 A638452 0.020 A638419 N/A A637341 0.10 A629829 1.5 A638601 1.0 A638601 2.5 A638601 1.3 A638601 N/A A637337 5.0 A638601 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 23 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG732 AWG734 2022/06/23 2022/06/23 50224 50224 220623-BH22-13-0-0.5 RDL QC Batch 220623-BH22-13-2-2.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.78 2.1 8.8 9.4 2.3 12 2.4 0.075 <5.9 22

N/A A630004 N/A A630004 0.10 A629988 0.88 A629823 0.59 A629823 1.5 A629823 0.76 A629823 0.059 A629817 5.9 A629823 2.9 A629823

0.59 1.5 7.4 4.5 0.89 7.6 1.2 <0.045 <4.5 13

N/A A630004 N/A A630004 0.10 A629988 0.67 A629823 0.45 A629823 1.1 A629823 0.58 A629823 0.045 A629817 4.5 A629823 2.2 A629823

mg/kg

<0.080

0.080 A634823

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.13 <10 0.24 5.98 1.2 16 4.0 20 4.0 59 37 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630025

<0.10 <10 0.20 7.47 1.3 10 2.0 17 2.7 45 28 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 24 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG735 AWG736 2022/06/23 2022/06/23 50224 50224 220623-BH22-14-1-1.5 RDL QC Batch 220623-BH22-14-2-2.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

6.9 6.9 9.2 20 5.3 43 1.3 <0.049 <4.9 160

N/A A630004 N/A A630004 0.10 A629988 0.73 A629823 0.49 A629823 1.2 A629823 0.63 A629823 0.049 A629817 4.9 A629823 2.4 A629823

1.8 2.6 8.3 6.8 1.2 15 2.1 <0.045 <4.5 39

N/A A630004 N/A A630004 0.10 A629988 0.68 A629823 0.45 A629823 1.1 A629823 0.59 A629823 0.045 A629817 4.5 A629823 2.3 A629823

mg/kg

<0.080

0.080 A634943

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.75 6.70 3.2 42 11 88 2.6 49 330 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

<0.10 <10 0.31 7.62 2.1 15 2.6 34 4.6 45 86 <0.20

0.10 A638065 10 A638055 0.020 A638419 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 25 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG737 AWG738 2022/06/23 2022/06/23 50224 50224 220623-BH22-15-1.5-2 RDL 220623-BH22-15-2.5-3 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.26 1.2 8.3 1.9 <0.42 8.9 1.0 <0.042 <4.2 5.3

N/A N/A 0.10 0.64 0.42 1.1 0.55 0.042 4.2 2.1

0.64 1.3 7.5 2.9 <0.43 8.4 1.4 <0.043 <4.3 13

N/A A630004 N/A A630004 0.10 A629988 0.65 A629823 0.43 A629823 1.1 A629823 0.56 A629823 0.043 A629817 4.3 A629823 2.2 A629823

mg/kg

<0.080

0.080

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.14 7.39 2.7 4.5 <1.0 21 2.3 42 12 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 <10 0.17 7.30 2.1 6.6 <1.0 19 3.2 43 31 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 26 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG739 AWG740 2022/06/23 2022/06/23 50224 50224 220623-BH22-16-1-1.5 RDL QC Batch 220623-BH22-16-1.5-2 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

2.2 3.0 7.9 5.3 1.2 24 0.72 0.12 5.2 43

N/A A630004 N/A A630004 0.10 A629826 0.72 A629823 0.48 A629823 1.2 A629823 0.63 A629823 0.048 A629817 4.8 A629823 2.4 A629823

1.4 2.2 10 4.4 1.2 18 0.84 N/A <5.1 35

N/A N/A 0.10 0.77 0.51 1.3 0.66 N/A 5.1 2.6

A659744 A659744 A659733 A659930 A659930 A659930 A659930 N/A A659930 A659930

mg/kg

<0.080

0.080 A634943

N/A

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.25 11 0.38 6.19 3.5 11 2.6 50 1.5 48 90 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

N/A <10 0.22 6.09 2.8 8.6 2.4 36 1.7 51 68 <0.20

N/A N/A 10 A679289 0.020 A679267 N/A A677982 0.10 A659750 1.5 A679188 1.0 A679188 2.5 A679188 1.3 A679188 N/A A677981 5.0 A679188 0.20 A659767

RDL = Reportable Detection Limit N/A = Not Applicable

Page 27 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG741 AWG742 2022/06/23 2022/06/23 50224 50224 220623-BH22-16-2.5-3 RDL 220623-BH22-17-0-0.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.58 1.5 7.5 1.0 <0.42 12 1.0 0.050 <4.2 12

N/A N/A 0.10 0.63 0.42 1.1 0.55 0.042 4.2 2.1

0.73 3.8 7.8 22 5.6 12 3.1 0.11 <5.6 20

N/A A630004 N/A A630004 0.10 A629826 0.84 A629823 0.56 A629823 1.4 A629823 0.73 A629823 0.056 A629817 5.6 A629823 2.8 A629823

mg/kg

<0.080

0.080

<0.080

0.080 A634943

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

0.12 <10 0.20 6.35 5.3 2.4 <1.0 30 2.4 42 28 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

0.20 <10 0.49 5.97 0.78 39 10 21 5.5 56 35 <0.20

0.10 A638065 10 A638055 0.020 A638049 N/A A637300 0.10 A629829 1.5 A638065 1.0 A638065 2.5 A638065 1.3 A638065 N/A A637298 5.0 A638065 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 28 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG744 AWG746 2022/06/23 2022/06/23 50224 50224 220623-BH22-17-2-2.5 RDL 220623-BH22-18-1.5-2 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.43 1.8 9.2 4.3 1.3 9.9 1.4 <0.045 <4.5 9.2

N/A N/A 0.10 0.67 0.45 1.1 0.58 0.045 4.5 2.2

0.83 2.4 9.1 11 2.7 9.9 2.5 <0.053 <5.3 21

N/A A630004 N/A A630004 0.10 A629826 0.79 A629823 0.53 A629823 1.3 A629823 0.69 A629823 0.053 A629817 5.3 A629823 2.6 A629823

mg/kg

<0.080

0.080

<0.080

0.080 A635100

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.19 7.49 1.6 9.7 2.9 22 3.2 45 21 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 <10 0.26 7.40 0.97 20 5.2 19 4.8 53 40 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630025

RDL = Reportable Detection Limit N/A = Not Applicable

Page 29 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG747 AWG748 2022/06/23 2022/06/23 50224 50224 220623-BH22-18-2.5-3 RDL QC Batch 220623-BH22-19-0-0.5 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.77 1.8 9.5 4.4 0.99 8.7 1.8 <0.041 <4.1 15

N/A A629828 N/A A629828 0.10 A629826 0.62 A629823 0.41 A629823 1.0 A629823 0.54 A629823 0.041 A629817 4.1 A629823 2.1 A629823

0.64 6.6 8.9 53 12 14 4.3 0.093 <6.6 20

N/A A629828 N/A A629828 0.10 A629826 0.99 A629823 0.66 A629823 1.6 A629823 0.86 A629823 0.066 A629817 6.6 A629823 3.3 A629823

mg/kg

<0.080

0.080 A634912

<0.080

0.080 A634912

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.18 7.43 1.5 11 2.4 21 4.3 41 37 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A630024

0.14 <10 0.74 5.88 0.55 81 18 21 6.5 66 31 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A629825

RDL = Reportable Detection Limit N/A = Not Applicable

Page 30 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG749 AWG751 AWG753 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 220623-BH22-19-1-1.5 RDL 220623-BH22-20-0.5-1 RDL 220623-BH22-20-2.5-3 RDL QC Batch

meq/L meq/L N/A mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

1.3 2.9 10 14 2.9 15 1.2 <0.056 <5.6 35

N/A N/A 0.10 0.83 0.56 1.4 0.72 0.056 5.6 2.8

2.2 3.7 7.7 17 5.4 14 1.8 <0.053 25 21

N/A N/A 0.10 0.79 0.53 1.3 0.68 0.053 5.3 2.6

3.2 4.7 8.1 26 5.1 8.7 3.2 <0.047 5.9 64

N/A A629828 N/A A629828 0.10 A629826 0.70 A629823 0.47 A629823 1.2 A629823 0.61 A629823 0.047 A629817 4.7 A629823 2.3 A629823

mg/kg

<0.080

0.080

<0.080

0.080

<0.080

0.080 A635087

mg/L mg/L dS/m pH N/A mg/L mg/L mg/L mg/L % mg/L tonnes/ha

<0.10 <10 0.29 6.47 1.3 25 5.2 27 2.2 56 64 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 48 0.48 5.88 1.0 33 10 26 3.4 53 39 <0.20

0.10 10 0.020 N/A 0.10 1.5 1.0 2.5 1.3 N/A 5.0 0.20

<0.10 13 0.59 7.50 0.59 57 11 19 6.9 47 140 <0.20

0.10 A637920 10 A637862 0.020 A637975 N/A A637250 0.10 A629829 1.5 A637920 1.0 A637920 2.5 A637920 1.3 A637920 N/A A637247 5.0 A637920 0.20 A629825

RDL = Reportable Detection Limit N/A = Not Applicable

Page 31 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PETROLEUM HYDROCARBONS (CCME) Bureau Veritas ID Sampling Date COC Number

AWG694 2022/06/22 50224

AWG696 2022/06/22 50224

AWG698 2022/06/22 50224

UNITS 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 220622-BH22-03-9-9.5 Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

<10 58 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

N/A A633570

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG700 AWG702 AWG704 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-0.5-1 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 RDL QC Batch

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

N/A A633570

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG705 2022/06/22 50224 UNITS 220622-BH22-04-8.5-9

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

AWG708 2022/06/23 50224 QC Batch 220623-BH22-05-1-1.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

12 75 <50 Yes

A634574 A634574 A634574 A634574

<10 <50 <50 Yes

10 A634494 50 A634494 50 A634494 N/A A634494

A634574

N/A A634494

RDL = Reportable Detection Limit N/A = Not Applicable

Page 32 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PETROLEUM HYDROCARBONS (CCME) Bureau Veritas ID Sampling Date COC Number

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG710 2022/06/23 50224

AWG711 2022/06/23 50224

AWG712 2022/06/23 50224

AWG712 2022/06/23 50224 220623-BH22-06-1.5-2 UNITS 220623-BH22-05-2.5-3 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 RDL QC Batch Lab-Dup mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

<10 93 59 Yes

<10 <50 <50 Yes

10 A634574 50 A634574 50 A634574 N/A A634574

N/A A634574

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG715 AWG716 AWG717 AWG719 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-07-1-1.5 220623-BH22-07-2-2.5 220623-BH22-08-0-0.5 220623-BH22-08-2-2.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A634574 50 A634574 50 A634574 N/A A634574

N/A A634574

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG720 AWG722 AWG723 AWG724 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-09-0.5-1 220623-BH22-09-2.5-3 220623-BH22-10-0-0.5 220623-BH22-10-1-1.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A634574 50 A634574 50 A634574 N/A A634574

N/A A634574

RDL = Reportable Detection Limit N/A = Not Applicable

Page 33 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PETROLEUM HYDROCARBONS (CCME) Bureau Veritas ID Sampling Date COC Number Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG726 AWG728 AWG729 AWG731 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-11-0.5-1 220623-BH22-11-2.5-3 220623-BH22-12-1-1.5 220623-BH22-12-2.5-3 RDL QC Batch mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A634574 50 A634574 50 A634574 N/A A634574

N/A A634574

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG732 AWG734 AWG735 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-13-0-0.5 220623-BH22-13-2-2.5 220623-BH22-14-1-1.5 RDL QC Batch

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A634574 50 A634574 50 A634574 N/A A634574

N/A A634574

AWG736 AWG737 AWG738 AWG739 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-14-2-2.5 220623-BH22-15-1.5-2 220623-BH22-15-2.5-3 220623-BH22-16-1-1.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

N/A A633570

RDL = Reportable Detection Limit N/A = Not Applicable

Page 34 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PETROLEUM HYDROCARBONS (CCME) Bureau Veritas ID Sampling Date COC Number

AWG742 AWG744 2022/06/23 2022/06/23 50224 50224 220623-BH22-17-0-0.5 UNITS 220623-BH22-16-2.5-3 220623-BH22-17-0-0.5 220623-BH22-17-2-2.5 RDL QC Batch Lab-Dup

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

AWG741 2022/06/23 50224

AWG742 2022/06/23 50224

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

104

N/A A633570

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG746 AWG747 AWG748 AWG749 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-18-1.5-2 220623-BH22-18-2.5-3 220623-BH22-19-0-0.5 220623-BH22-19-1-1.5 RDL QC Batch

Ext. Pet. Hydrocarbon F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Reached Baseline at C50 Surrogate Recovery (%) O-TERPHENYL (sur.)

mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

<10 130 94 Yes

<10 <50 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

100

N/A A633570

AWG751 AWG753 2022/06/23 2022/06/23 50224 50224 UNITS 220623-BH22-20-0.5-1 220623-BH22-20-2.5-3 RDL QC Batch mg/kg mg/kg mg/kg mg/kg

<10 <50 <50 Yes

10 A633570 50 A633570 50 A633570 N/A A633570

N/A A633570

RDL = Reportable Detection Limit N/A = Not Applicable

Page 35 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GLYCOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG694 AWG696 AWG698 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 220622-BH22-03-9-9.5 RDL QC Batch

Glycols Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Surrogate Recovery (%) Extractable (Water) Methyl Sulfone (sur.)

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A633707 A633707 A633707 A633707

N/A A633707

AWG699 2022/06/22 50224

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00 Lab-Dup

AWG700 2022/06/22 50224

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

UNITS

220622-BH22-0311.50-12.00

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

N/A A633707

220622-BH22-04-0.5-1 RDL QC Batch

A633707 A633707 A633707 A633707

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG702 AWG704 AWG705 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 QC Batch 220622-BH22-04-8.5-9 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

A633707 A633707 A633707 A633707

<10 <9.0 <10 <10

10 9.0 10 10

A633707

N/A A634992

Telephone (403) 291-3077

Fax (403) 291-9468

RDL = Reportable Detection Limit N/A = Not Applicable Page 36 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

A634992 A634992 A634992 A634992

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GLYCOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG707 2022/06/22 50224

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00 Lab-Dup

AWG708 2022/06/23 50224

UNITS

220622-BH22-0411.50-12.00

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

N/A A634992

220623-BH22-05-1-1.5 RDL QC Batch

A634992 A634992 A634992 A634992

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG710 AWG711 AWG712 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-05-2.5-3 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A634992 A634992 A634992 A634992

N/A A634992

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG715 AWG716 AWG717 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-07-1-1.5 220623-BH22-07-2-2.5 220623-BH22-08-0-0.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

N/A A634992

RDL = Reportable Detection Limit N/A = Not Applicable Page 37 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

A634992 A634992 A634992 A634992

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GLYCOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG719 AWG720 AWG722 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-08-2-2.5 220623-BH22-09-0.5-1 220623-BH22-09-2.5-3 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A634992 A634992 A634992 A634992

N/A A634992

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG723 AWG724 AWG726 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-10-0-0.5 220623-BH22-10-1-1.5 220623-BH22-11-0.5-1 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A634992 A634992 A634992 A634992

N/A A634992

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG728 AWG735 AWG736 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-11-2.5-3 220623-BH22-14-1-1.5 QC Batch 220623-BH22-14-2-2.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

A634992 A634992 A634992 A634992

<10 <9.0 <10 <10

10 9.0 10 10

A634992

N/A A633707

Telephone (403) 291-3077

Fax (403) 291-9468

RDL = Reportable Detection Limit N/A = Not Applicable

Page 38 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

A633707 A633707 A633707 A633707

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GLYCOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG737 AWG738 AWG739 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-15-1.5-2 220623-BH22-15-2.5-3 220623-BH22-16-1-1.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A633707 A633707 A633707 A633707

N/A A633707

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG741 AWG742 AWG744 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-16-2.5-3 220623-BH22-17-0-0.5 220623-BH22-17-2-2.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

A633707 A633707 A633707 A633707

101

100

N/A A633707

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG746 AWG747 AWG748 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-18-1.5-2 220623-BH22-18-2.5-3 220623-BH22-19-0-0.5 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

N/A A633707

RDL = Reportable Detection Limit N/A = Not Applicable

Page 39 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

A633707 A633707 A633707 A633707

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GLYCOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG749 AWG751 AWG753 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-19-1-1.5 220623-BH22-20-0.5-1 220623-BH22-20-2.5-3 RDL QC Batch

mg/kg mg/kg mg/kg mg/kg

<10 <9.0 <10 <10

10 9.0 10 10

N/A A633707

RDL = Reportable Detection Limit N/A = Not Applicable

Page 40 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

A633707 A633707 A633707 A633707

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PHYSICAL TESTING (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG681 AWG683 AWG685 AWG687 2022/06/22 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 50224 UNITS 220622-BH22-01-0-0.25 220622-BH22-01-0.5-1 220622-BH22-01-2.5-3 220622-BH22-01-5-5.5 RDL QC Batch

Physical Properties Moisture

0.30 A633100

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG689 AWG691 AWG693 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-02-0.25-0.5 220622-BH22-02-1-1.5 220622-BH22-02-5.5-6 RDL QC Batch

Physical Properties Moisture

0.30 A634393

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG694 2022/06/22 50224

AWG696 2022/06/22 50224

AWG698 2022/06/22 50224

UNITS 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 220622-BH22-03-9-9.5 Physical Properties Moisture

6.3

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

RDL QC Batch

0.30 A633639

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG700 AWG702 AWG704 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-0.5-1 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 RDL QC Batch

Physical Properties Moisture

9.3

0.30 A633639

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG705 2022/06/22 50224

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

UNITS 220622-BH22-04-8.5-9 QC Batch Physical Properties Moisture

A635108

AWG708 2022/06/23 50224 220623-BH22-05-1-1.5 RDL QC Batch

RDL = Reportable Detection Limit

Page 41 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

0.30 A635107

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PHYSICAL TESTING (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG710 AWG711 AWG712 AWG715 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-05-2.5-3 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 220623-BH22-07-1-1.5 RDL QC Batch

Physical Properties Moisture

AWG716 2022/06/23 50224

AWG717 2022/06/23 50224

AWG719 2022/06/23 50224

0.30 A635107

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG719 2022/06/23 50224 220623-BH22-08-2-2.5 UNITS 220623-BH22-07-2-2.5 220623-BH22-08-0-0.5 220623-BH22-08-2-2.5 RDL QC Batch Lab-Dup

Physical Properties Moisture

0.30 A635107

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate Bureau Veritas ID Sampling Date COC Number

AWG720 AWG722 AWG723 AWG724 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-09-0.5-1 220623-BH22-09-2.5-3 220623-BH22-10-0-0.5 220623-BH22-10-1-1.5 RDL QC Batch

Physical Properties Moisture

0.30 A635107

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG726 AWG728 AWG729 AWG731 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-11-0.5-1 220623-BH22-11-2.5-3 220623-BH22-12-1-1.5 220623-BH22-12-2.5-3 RDL QC Batch

Physical Properties Moisture

0.30 A635107

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number Physical Properties Moisture

AWG732 AWG734 AWG735 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-13-0-0.5 220623-BH22-13-2-2.5 220623-BH22-14-1-1.5 RDL QC Batch %

RDL = Reportable Detection Limit

Page 42 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

0.30 A635107

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

PHYSICAL TESTING (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG736 2022/06/23 50224

AWG736 AWG737 2022/06/23 2022/06/23 50224 50224 220623-BH22-14-2-2.5 UNITS 220623-BH22-14-2-2.5 QC Batch 220623-BH22-15-1.5-2 RDL QC Batch Lab-Dup

Physical Properties Moisture

A633644

8.7

0.30 A633639

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate Bureau Veritas ID Sampling Date COC Number

AWG738 AWG739 AWG741 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-15-2.5-3 QC Batch 220623-BH22-16-1-1.5 220623-BH22-16-2.5-3 RDL QC Batch

Physical Properties Moisture

A633639

0.30 A633644

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number

AWG742 AWG744 AWG746 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-17-0-0.5 QC Batch 220623-BH22-17-2-2.5 QC Batch 220623-BH22-18-1.5-2 RDL QC Batch

Physical Properties Moisture

A633639

A633644

0.30 A633639

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number Physical Properties Moisture

AWG747 AWG748 AWG749 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-18-2.5-3 220623-BH22-19-0-0.5 QC Batch 220623-BH22-19-1-1.5 RDL QC Batch %

A633639

RDL = Reportable Detection Limit Bureau Veritas ID Sampling Date COC Number Physical Properties Moisture

AWG751 AWG753 2022/06/23 2022/06/23 50224 50224 UNITS 220623-BH22-20-0.5-1 220623-BH22-20-2.5-3 RDL QC Batch %

RDL = Reportable Detection Limit

Page 43 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

0.30 A633639

0.30 A633644

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

SEMIVOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number Polycyclic Aromatics Acenaphthene B[a]P TPE Total Potency Equivalents Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline Surrogate Recovery (%) D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.)

AWG694 AWG696 2022/06/22 2022/06/22 50224 50224 UNITS 220622-BH22-03-0.5-1 QC Batch 220622-BH22-03-5-5.5

RDL

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.010

A631346 A630008 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346 A631346

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.0064 <0.0050 <0.0050 0.016 <0.0050 <0.010

0.0050 A630955 0.0071 A630008 0.0050 A630955 0.010 A630955 0.0040 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.0050 A630955 0.010 A630955

% % % %

100 95 96 104

A631346 A631346 A631346 A631346

100 98 99 115

RDL = Reportable Detection Limit N/A = Not Applicable

Page 44 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A630955 A630955 A630955 A630955

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

SEMIVOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG698 2022/06/22 50224 UNITS 220622-BH22-03-9-9.5

Polycyclic Aromatics Acenaphthene B[a]P TPE Total Potency Equivalents Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline Surrogate Recovery (%) D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.)

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

AWG700 2022/06/22 50224 220622-BH22-04-0.5-1

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.016 <0.0050 <0.010

<0.0050 0.013 <0.0050 <0.010 <0.0040 <0.0050 0.013 <0.0050 0.0091 <0.0050 0.0083 0.0068 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.16 0.0097 <0.010

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.0064 <0.0050 <0.010

% % % %

98 94 93 103

103 98 96 106

104 98 98 106

RDL = Reportable Detection Limit N/A = Not Applicable

Page 45 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

RDL

QC Batch

0.0050 A631346 0.0071 A630008 0.0050 A631346 0.010 A631346 0.0040 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.0050 A631346 0.010 A631346 N/A N/A N/A N/A

A631346 A631346 A631346 A631346

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG702 AWG704 AWG705 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 QC Batch 220622-BH22-04-8.5-9

RDL

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.023 <0.0050 <0.010

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.015 <0.0050 <0.010

A630955 A628634 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955 A630955

<0.0050 <0.0071 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.010

0.0050 A634284 0.0071 A628634 0.0050 A634284 0.010 A634284 0.0040 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.0050 A634284 0.010 A634284

% % % %

108 104 105 122

102 97 98 115

A630955 A630955 A630955 A630955

92 89 84 92

RDL = Reportable Detection Limit N/A = Not Applicable

Page 46 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A634284 A634284 A634284 A634284

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

SEMIVOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number UNITS Polycyclic Aromatics Acenaphthene B[a]P TPE Total Potency Equivalents Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline Surrogate Recovery (%) D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.)

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

RDL

QC Batch

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 0.0080 <0.0050 <0.010 <0.0040 <0.0050 0.017 <0.0050 0.0098 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 0.0073 <0.0050 <0.0050 <0.0050 <0.0050 0.20 0.013 <0.010

% % % %

93 89 86 93

N/A N/A N/A N/A

Telephone (403) 291-3077

Fax (403) 291-9468

A634284 A634284 A634284 A634284

RDL = Reportable Detection Limit N/A = Not Applicable

Page 47 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ELEMENTS BY ATOMIC SPECTROSCOPY (SOIL) Bureau Veritas ID Sampling Date COC Number

Elements Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn)

AWG681 2022/06/22 50224

AWG681 AWG683 2022/06/22 2022/06/22 50224 50224 220622-BH22-01-0-0.25 UNITS 220622-BH22-01-0-0.25 220622-BH22-01-0.5-1 RDL QC Batch Lab-Dup mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 9.2 220 0.72 0.39 21 10 22 12 0.14 0.95 28 0.81 <0.20 0.19 <1.0 0.86 37 92

<0.50 8.7 200 0.71 0.37 21 10 21 12 0.13 0.92 27 0.76 <0.20 0.19 <1.0 0.84 34 88

<0.50 12 200 0.85 0.15 25 12 31 15 0.083 1.2 31 0.66 <0.20 0.25 <1.0 0.96 44 88

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate

Page 48 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

0.50 A637477 1.0 A637477 1.0 A637477 0.40 A637477 0.050 A637477 1.0 A637477 0.50 A637477 1.0 A637477 0.50 A637477 0.050 A637477 0.40 A637477 1.0 A637477 0.50 A637477 0.20 A637477 0.10 A637477 1.0 A637477 0.20 A637477 1.0 A637477 10 A637477

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ELEMENTS BY ATOMIC SPECTROSCOPY (SOIL) Bureau Veritas ID Sampling Date COC Number Elements Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn)

AWG685 AWG687 AWG689 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-01-2.5-3 220622-BH22-01-5-5.5 220622-BH22-02-0.25-0.5

RDL QC Batch

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 8.4 160 0.43 0.28 14 8.8 16 9.5 0.057 1.2 23 <0.50 <0.20 0.19 <1.0 1.0 24 68

<0.50 10 190 0.53 0.38 17 10 21 11 0.064 1.3 26 0.73 <0.20 0.25 <1.0 1.1 28 80

<0.50 9.5 210 0.71 0.35 21 10 21 13 0.050 1.0 27 0.74 <0.20 0.22 <1.0 0.95 37 88

RDL = Reportable Detection Limit

Page 49 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG691 AWG693 AWG694 AWG696 2022/06/22 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 50224 UNITS 220622-BH22-02-1-1.5 220622-BH22-02-5.5-6 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 12 190 0.66 0.22 21 11 28 13 0.084 1.2 32 0.62 <0.20 0.25 <1.0 0.89 39 88

<0.50 7.6 150 0.46 0.28 13 7.1 14 9.4 0.058 1.4 19 0.62 <0.20 0.21 <1.0 1.1 23 66

<0.50 9.6 170 0.77 0.12 25 11 25 13 0.055 1.0 29 0.60 <0.20 0.25 <1.0 1.0 40 77

RDL = Reportable Detection Limit

Page 50 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 10 180 0.45 0.36 15 9.5 19 11 0.068 1.3 24 0.52 <0.20 0.26 <1.0 1.0 26 75

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ELEMENTS BY ATOMIC SPECTROSCOPY (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG698 2022/06/22 50224 UNITS 220622-BH22-03-9-9.5

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 10 190 0.52 0.32 16 7.8 21 11 0.057 1.4 24 12 <0.20 0.23 <1.0 1.1 27 79

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00 <0.50 8.2 140 <0.40 0.28 12 7.5 14 8.6 <0.050 1.0 20 0.82 <0.20 0.20 <1.0 1.3 20 61

AWG700 2022/06/22 50224 QC Batch 220622-BH22-04-0.5-1 RDL QC Batch

A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606

RDL = Reportable Detection Limit

Page 51 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 12 190 0.65 0.24 21 11 25 13 0.058 1.2 30 0.63 <0.20 0.23 <1.0 0.88 34 85

0.50 A637608 1.0 A637608 1.0 A637608 0.40 A637608 0.050 A637608 1.0 A637608 0.50 A637608 1.0 A637608 0.50 A637608 0.050 A637608 0.40 A637608 1.0 A637608 0.50 A637608 0.20 A637608 0.10 A637608 1.0 A637608 0.20 A637608 1.0 A637608 10 A637608

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG702 AWG704 AWG705 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 QC Batch 220622-BH22-04-8.5-9 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 11 190 0.59 0.27 19 9.9 43 11 0.056 1.3 28 0.58 <0.20 0.23 <1.0 0.89 33 130

<0.50 11 190 0.67 0.23 23 10 23 11 0.057 1.2 29 0.62 <0.20 0.24 <1.0 0.92 36 79

A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606

RDL = Reportable Detection Limit

Page 52 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 11 180 0.66 0.22 22 10 24 12 0.052 1.1 30 0.53 <0.20 0.22 <1.0 0.84 33 80

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ELEMENTS BY ATOMIC SPECTROSCOPY (SOIL) Bureau Veritas ID Sampling Date COC Number UNITS Elements Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn)

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00 <0.50 8.8 150 0.42 0.32 13 8.6 17 9.6 0.051 1.1 23 0.83 <0.20 0.22 <1.0 1.4 22 71

AWG708 2022/06/23 50224

AWG710 2022/06/23 50224

220623-BH22-05-1-1.5 QC Batch 220623-BH22-05-2.5-3 RDL QC Batch

<0.50 11 190 0.68 0.29 21 11 24 13 0.056 1.1 29 0.63 <0.20 0.21 <1.0 0.84 35 88

A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608

RDL = Reportable Detection Limit

Page 53 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 11 200 0.46 0.36 16 9.7 20 12 0.060 1.4 25 0.60 <0.20 0.27 <1.0 1.0 27 77

0.50 A637606 1.0 A637606 1.0 A637606 0.40 A637606 0.050 A637606 1.0 A637606 0.50 A637606 1.0 A637606 0.50 A637606 0.050 A637606 0.40 A637606 1.0 A637606 0.50 A637606 0.20 A637606 0.10 A637606 1.0 A637606 0.20 A637606 1.0 A637606 10 A637606

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG711 AWG712 AWG715 AWG716 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 220623-BH22-07-1-1.5 220623-BH22-07-2-2.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 9.5 210 0.64 0.34 23 10 22 14 0.061 1.1 28 0.76 <0.20 0.20 <1.0 0.90 35 89

<0.50 11 180 0.53 0.32 18 10 19 11 <0.050 1.3 27 <0.50 <0.20 0.22 <1.0 0.82 30 82

<0.50 11 220 0.66 0.28 22 11 25 13 0.065 1.4 31 0.61 <0.20 0.25 <1.0 0.97 34 84

RDL = Reportable Detection Limit

Page 54 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 11 190 0.42 0.33 14 9.1 19 11 0.063 1.4 24 0.55 <0.20 0.25 <1.0 0.96 25 75

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ELEMENTS BY ATOMIC SPECTROSCOPY (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG719 AWG720 2022/06/23 2022/06/23 50224 50224 220623-BH22-08-2-2.5 UNITS 220623-BH22-08-0-0.5 220623-BH22-08-2-2.5 220623-BH22-09-0.5-1 RDL QC Batch Lab-Dup mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

AWG717 2022/06/23 50224

AWG719 2022/06/23 50224

<0.50 9.4 210 0.60 0.36 21 9.8 21 12 <0.050 1.0 27 0.71 <0.20 0.18 <1.0 0.85 34 90

<0.50 9.5 160 0.43 0.34 14 8.6 17 11 0.064 1.5 23 0.51 <0.20 0.26 <1.0 0.92 24 (1) 71

<0.50 9.3 160 0.43 0.35 14 8.9 17 10 0.064 1.5 23 <0.50 <0.20 0.22 <1.0 0.95 25 71

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate (1) Matrix spike exceeds acceptance limits due to matrix interference.

Page 55 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 10 210 0.80 0.17 25 12 26 14 0.053 0.96 31 0.56 <0.20 0.23 <1.0 0.90 42 83

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG722 AWG723 AWG724 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-09-2.5-3 220623-BH22-10-0-0.5 220623-BH22-10-1-1.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 12 190 0.48 0.51 14 10 20 11 0.053 1.9 28 0.59 <0.20 0.32 <1.0 1.1 27 81

<0.50 9.3 210 0.68 0.42 20 9.8 22 12 <0.050 1.0 28 0.72 <0.20 0.19 <1.0 0.88 35 100

<0.50 12 180 0.64 0.21 20 11 26 13 0.053 1.2 32 <0.50 <0.20 0.24 <1.0 0.86 34 91

RDL = Reportable Detection Limit

Page 56 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG726 AWG728 AWG729 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-11-0.5-1 QC Batch 220623-BH22-11-2.5-3 220623-BH22-12-1-1.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 11 210 0.70 0.24 23 11 24 14 0.063 1.2 30 0.66 <0.20 0.25 <1.0 0.96 39 85

A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606 A637606

<0.50 12 200 0.52 0.38 17 10 21 12 0.081 1.4 28 0.64 <0.20 0.28 <1.0 1.0 30 82

<0.50 12 180 0.63 0.20 20 11 26 13 0.093 1.3 31 0.56 <0.20 0.28 <1.0 0.92 36 88

RDL = Reportable Detection Limit

Page 57 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG731 AWG732 AWG734 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-12-2.5-3 QC Batch 220623-BH22-13-0-0.5 220623-BH22-13-2-2.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 9.9 170 0.43 0.30 13 9.0 18 9.8 <0.050 1.3 24 <0.50 <0.20 0.23 <1.0 0.83 23 71

A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608 A637608

<0.50 10 220 0.77 0.32 25 11 24 14 <0.050 1.1 30 0.72 <0.20 0.25 <1.0 0.97 41 93

<0.50 12 210 0.54 0.34 16 9.6 20 12 0.068 1.7 24 0.69 <0.20 0.27 <1.0 1.0 32 81

RDL = Reportable Detection Limit

Page 58 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG735 AWG736 AWG737 AWG738 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-14-1-1.5 220623-BH22-14-2-2.5 220623-BH22-15-1.5-2 220623-BH22-15-2.5-3 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 12 180 0.52 0.24 17 9.9 22 12 0.067 1.3 28 0.55 <0.20 0.24 <1.0 0.89 31 79

<0.50 10 190 0.43 0.30 14 8.7 18 10 0.061 1.3 23 0.55 <0.20 0.23 <1.0 0.99 25 73

<0.50 10 180 0.42 0.32 14 8.4 17 11 0.065 1.4 23 <0.50 <0.20 0.23 <1.0 0.89 25 72

RDL = Reportable Detection Limit

Page 59 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 11 190 0.45 0.37 16 9.9 20 11 0.056 1.4 27 0.62 <0.20 0.24 <1.0 1.0 29 80

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG739 AWG741 AWG742 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-16-1-1.5 220623-BH22-16-2.5-3 220623-BH22-17-0-0.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.51 13 200 0.68 0.12 23 12 30 15 0.087 1.4 28 0.64 <0.20 0.26 <1.0 1.0 39 91

<0.50 11 170 0.55 0.36 16 9.6 22 12 0.071 1.6 27 <0.50 <0.20 0.31 <1.0 1.2 29 82

<0.50 9.5 220 0.76 0.28 27 11 24 13 <0.050 0.97 30 0.58 <0.20 0.22 <1.0 0.98 40 87

RDL = Reportable Detection Limit

Page 60 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG744 AWG746 AWG747 AWG748 2022/06/23 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 50224 UNITS 220623-BH22-17-2-2.5 220623-BH22-18-1.5-2 220623-BH22-18-2.5-3 220623-BH22-19-0-0.5 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.50 11 190 0.55 0.34 16 9.7 22 12 0.075 1.6 25 0.71 <0.20 0.29 <1.0 1.0 30 80

0.53 12 190 0.60 0.33 20 11 26 13 0.077 1.4 30 0.53 <0.20 0.30 <1.0 0.92 35 88

<0.50 8.7 180 0.48 0.33 15 9.4 16 9.8 0.063 1.2 24 0.55 <0.20 0.22 <1.0 1.1 26 71

RDL = Reportable Detection Limit

Page 61 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

<0.50 10 220 0.75 0.39 22 11 26 18 0.055 1.1 29 0.80 <0.20 0.21 <1.0 0.84 37 97

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG749 AWG751 AWG753 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-19-1-1.5 220623-BH22-20-0.5-1 220623-BH22-20-2.5-3 RDL QC Batch mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

0.56 13 220 0.86 0.24 25 12 30 15 0.083 1.2 37 0.58 <0.20 0.29 <1.0 0.96 45 98

<0.50 9.6 170 0.87 0.15 29 11 26 13 0.058 1.2 30 0.53 <0.20 0.22 <1.0 0.92 41 76

<0.50 10 190 0.53 0.34 16 9.6 19 11 0.073 1.5 25 <0.50 <0.20 0.28 <1.0 1.0 28 75

RDL = Reportable Detection Limit

Page 62 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number

Volatiles Xylenes (Total) F1 (C6-C10) - BTEX Field Preserved Volatiles Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Surrogate Recovery (%) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.)

AWG694 2022/06/22 50224

AWG694 AWG696 2022/06/22 2022/06/22 50224 50224 220622-BH22-03-0.5-1 UNITS 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 Lab-Dup

RDL

QC Batch

mg/kg mg/kg

<0.045 <10

N/A N/A

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

102 101 127 113

75 116 100 225 (1)

101 102 127 113

N/A N/A N/A N/A

A631575 A631575 A631575 A631575

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable (1) Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria.

Page 63 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG698 2022/06/22 50224 UNITS 220622-BH22-03-9-9.5

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

AWG700 2022/06/22 50224 220622-BH22-04-0.5-1

RDL

QC Batch

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

102 100 127 112

102 102 139 112

99 102 124 122

RDL = Reportable Detection Limit N/A = Not Applicable

Page 64 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

A631575 A631575 A631575 A631575

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number Volatiles Xylenes (Total) F1 (C6-C10) - BTEX Field Preserved Volatiles Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Surrogate Recovery (%) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.)

AWG702 AWG704 AWG705 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 220622-BH22-04-8.5-9

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

101 101 123 114

101 102 129 115

101 102 97 115

RDL = Reportable Detection Limit N/A = Not Applicable

Page 65 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631575 A631575 A631575 A631575

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number UNITS Volatiles Xylenes (Total) F1 (C6-C10) - BTEX Field Preserved Volatiles Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Surrogate Recovery (%) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.)

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

AWG708 2022/06/23 50224

AWG710 2022/06/23 50224

220623-BH22-05-1-1.5 220623-BH22-05-2.5-3

RDL

QC Batch

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

100 100 113 117

102 100 127 114

102 99 126 113

RDL = Reportable Detection Limit N/A = Not Applicable

Page 66 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

A631575 A631575 A631575 A631575

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG711 AWG712 AWG715 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 220623-BH22-07-1-1.5

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

102 101 127 113

101 100 134 113

99 102 139 122

RDL = Reportable Detection Limit N/A = Not Applicable

Page 67 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631575 A631575 A631575 A631575

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG716 AWG717 AWG719 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-07-2-2.5 220623-BH22-08-0-0.5 220623-BH22-08-2-2.5

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

100 102 137 116

99 101 126 121

102 99 151 (1) 114

N/A N/A N/A N/A

QC Batch

A631575 A631575 A631575 A631575

RDL = Reportable Detection Limit N/A = Not Applicable (1) Surrogate recovery exceeds acceptance criteria (high recovery). As results are non-detect, there is no impact on data quality.

Page 68 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG720 AWG722 AWG723 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-09-0.5-1 220623-BH22-09-2.5-3 220623-BH22-10-0-0.5

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631575 0.050 A631575 0.010 A631575 0.040 A631575 0.020 A631575 10 A631575

% % % %

99 102 133 115

101 100 132 114

100 101 140 115

RDL = Reportable Detection Limit N/A = Not Applicable

Page 69 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631575 A631575 A631575 A631575

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VOLATILE ORGANICS BY GC-MS (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG724 2022/06/23 50224

AWG724 AWG726 2022/06/23 2022/06/23 50224 50224 220623-BH22-10-1-1.5 UNITS 220623-BH22-10-1-1.5 220623-BH22-11-0.5-1 Lab-Dup

RDL

QC Batch

mg/kg mg/kg

<0.045 <10

N/A N/A

<0.045 <10

0.045 A629986 10 A629986

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

104 99 96 114

105 99 95 114

105 98 96 114

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable

Page 70 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG728 AWG729 AWG731 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-11-2.5-3 220623-BH22-12-1-1.5 QC Batch 220623-BH22-12-2.5-3

RDL

mg/kg mg/kg

<0.045 <10

A629986 A629986

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

A631576 A631576 A631576 A631576 A631576 A631576

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

103 99 94 112

104 98 96 114

A631576 A631576 A631576 A631576

104 98 97 114

RDL = Reportable Detection Limit N/A = Not Applicable

Page 71 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG732 AWG734 AWG735 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-13-0-0.5 220623-BH22-13-2-2.5 220623-BH22-14-1-1.5

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

104 99 94 114

105 101 102 116

104 99 97 117

RDL = Reportable Detection Limit N/A = Not Applicable

Page 72 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG736 AWG737 AWG738 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-14-2-2.5 220623-BH22-15-1.5-2 220623-BH22-15-2.5-3

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

105 101 99 115

105 100 91 116

102 102 98 119

RDL = Reportable Detection Limit N/A = Not Applicable

Page 73 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG739 AWG741 AWG742 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-16-1-1.5 220623-BH22-16-2.5-3 220623-BH22-17-0-0.5

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

105 99 91 116

104 98 100 116

105 99 93 115

RDL = Reportable Detection Limit N/A = Not Applicable

Page 74 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG744 AWG746 AWG747 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-17-2-2.5 220623-BH22-18-1.5-2 220623-BH22-18-2.5-3

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

105 99 94 117

105 100 93 117

104 99 99 117

RDL = Reportable Detection Limit N/A = Not Applicable

Page 75 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG748 AWG749 AWG751 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-19-0-0.5 220623-BH22-19-1-1.5 220623-BH22-20-0.5-1

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631576 0.050 A631576 0.010 A631576 0.040 A631576 0.020 A631576 10 A631576

% % % %

105 99 99 117

104 100 93 115

105 96 95 117

RDL = Reportable Detection Limit N/A = Not Applicable

Page 76 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

N/A N/A N/A N/A

QC Batch

A631576 A631576 A631576 A631576

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

AWG753 2022/06/23 50224 UNITS 220623-BH22-20-2.5-3

RDL

mg/kg mg/kg

<0.045 <10

0.045 A629819 10 A629819

mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

<0.0050 <0.050 <0.010 <0.040 <0.020 <10

0.0050 A631578 0.050 A631578 0.010 A631578 0.040 A631578 0.020 A631578 10 A631578

% % % %

94 102 136 113

N/A N/A N/A N/A

QC Batch

A631578 A631578 A631578 A631578

RDL = Reportable Detection Limit N/A = Not Applicable

Page 77 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ALCOHOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG696 2022/06/22 50224 220622-BH22-03-5-5.5 UNITS 220622-BH22-03-0.5-1 220622-BH22-03-5-5.5 RDL QC Batch Lab-Dup

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

AWG694 2022/06/22 50224

AWG696 2022/06/22 50224

mg/kg

<1.0

1.0 A633703

N/A A633703

AWG698 2022/06/22 50224

AWG699 2022/06/22 50224 220622-BH22-0311.50-12.00

AWG700 2022/06/22 50224

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

UNITS 220622-BH22-03-9-9.5 Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

220622-BH22-04-0.5-1 RDL QC Batch

mg/kg

<1.0

1.0 A633703

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

AWG702 AWG704 AWG705 2022/06/22 2022/06/22 2022/06/22 50224 50224 50224 UNITS 220622-BH22-04-2.5-3 220622-BH22-04-7-7.5 QC Batch 220622-BH22-04-8.5-9 RDL QC Batch mg/kg

<1.0

A633703

<1.0

1.0 A635011

A633703

N/A A635011

RDL = Reportable Detection Limit N/A = Not Applicable

Page 78 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ALCOHOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number UNITS Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

AWG707 2022/06/22 50224 220622-BH22-0411.50-12.00

AWG710 2022/06/23 50224

AWG710 2022/06/23 50224 220623-BH22-05-2.5-3 220623-BH22-05-2.5-3 RDL QC Batch Lab-Dup

mg/kg

<1.0

1.0 A635011

N/A A635011

RDL = Reportable Detection Limit Lab-Dup = Laboratory Initiated Duplicate N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG711 AWG712 AWG715 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-06-0.5-1 220623-BH22-06-1.5-2 220623-BH22-07-1-1.5 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A635011

N/A A635011

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG716 AWG717 AWG719 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-07-2-2.5 220623-BH22-08-0-0.5 220623-BH22-08-2-2.5 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A635011

N/A A635011

RDL = Reportable Detection Limit N/A = Not Applicable

Page 79 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ALCOHOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG720 AWG722 AWG723 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-09-0.5-1 220623-BH22-09-2.5-3 220623-BH22-10-0-0.5 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A635011

N/A A635011

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG724 AWG726 AWG728 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-10-1-1.5 220623-BH22-11-0.5-1 220623-BH22-11-2.5-3 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A635011

N/A A635011

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

AWG735 AWG736 AWG737 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-14-1-1.5 QC Batch 220623-BH22-14-2-2.5 220623-BH22-15-1.5-2 RDL QC Batch mg/kg

<1.0

A635011

<1.0

1.0 A633703

A635011

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG738 AWG739 AWG741 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-15-2.5-3 220623-BH22-16-1-1.5 220623-BH22-16-2.5-3 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A633703

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable

Page 80 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

ALCOHOLS BY GC-FID (SOIL) Bureau Veritas ID Sampling Date COC Number

AWG742 AWG744 AWG746 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-17-0-0.5 220623-BH22-17-2-2.5 220623-BH22-18-1.5-2 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A633703

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG747 AWG748 AWG749 2022/06/23 2022/06/23 2022/06/23 50224 50224 50224 UNITS 220623-BH22-18-2.5-3 220623-BH22-19-0-0.5 220623-BH22-19-1-1.5 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A633703

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable Bureau Veritas ID Sampling Date COC Number

AWG751 AWG753 2022/06/23 2022/06/23 50224 50224 UNITS 220623-BH22-20-0.5-1 220623-BH22-20-2.5-3 RDL QC Batch

Alcohols Methanol Surrogate Recovery (%) METHYL ISO-BUTYL KETONE (sur.)

mg/kg

<1.0

1.0 A633703

N/A A633703

RDL = Reportable Detection Limit N/A = Not Applicable

Page 81 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

GENERAL COMMENTS Each temperature is the average of up to three cooler temperatures taken at receipt Package 1 Package 2 Package 3

9.9°C 7.4°C 15.8°C

Version 2: Report reissued to include results for AT1 Salinity on below samples as per client request received 2022/07/26. 220623-BH22-16-1.5-2 220622-BH22-04-5-5.5 220622-BH22-04-1.5-2 220622-BH22-03-7.5-8 220622-BH22-03-2-2.5 Sample AWG695 [220622-BH22-03-2-2.5] : Sample was analyzed past method specified hold time for Conductivity @25C (Soluble). Sample was analyzed past method specified hold time for pH @25C (1:2 Calcium Chloride Extract). Sample was analyzed past method specified hold time for Chloride (Soluble). Sample AWG697 [220622-BH22-03-7.5-8] : Sample was analyzed past method specified hold time for Conductivity @25C (Soluble). Sample was analyzed past method specified hold time for pH @25C (1:2 Calcium Chloride Extract). Sample was analyzed past method specified hold time for Chloride (Soluble). Sample AWG701 [220622-BH22-04-1.5-2] : Sample was analyzed past method specified hold time for Conductivity @25C (Soluble). Sample was analyzed past method specified hold time for pH @25C (1:2 Calcium Chloride Extract). Sample was analyzed past method specified hold time for Chloride (Soluble). Sample AWG703 [220622-BH22-04-5-5.5] : Sample was analyzed past method specified hold time for Conductivity @25C (Soluble). Sample was analyzed past method specified hold time for pH @25C (1:2 Calcium Chloride Extract). Sample was analyzed past method specified hold time for Chloride (Soluble). Sample AWG740 [220623-BH22-16-1.5-2] : Sample was analyzed past method specified hold time for Conductivity @25C (Soluble). Sample was analyzed past method specified hold time for pH @25C (1:2 Calcium Chloride Extract). Sample was analyzed past method specified hold time for Chloride (Soluble). Results relate only to the items tested.

Page 82 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT QA/QC Batch A630955

Init NK3

QC Type Matrix Spike

A630955

NK3

Spiked Blank

Parameter D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene

Date Analyzed 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05 2022/07/05

Value

Page 83 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

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Fax (403) 291-9468

Recovery 97 94 91 101 91 92 63 90 94 88 89 80 94 81 77 84 84 89 96 84 76 96 89 90 74 89 92 99 97 91 102 93 95 67 91 98 92 97 91 95 94 82 86 91 92 98 93 77 96 89 90 81

UNITS % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %

QC Limits 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A630955

NK3

Method Blank

A630955

NK3

RPD

Parameter Pyrene Quinoline D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline

Value

<0.0050 <0.0050 <0.010 <0.0040 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 <0.010 NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

Page 84 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 91 90 102 99 94 108

UNITS % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % % % % % %

QC Limits 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130

50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A631346

Init NK3

QC Type Matrix Spike

A631346

NK3

Spiked Blank

Value

Page 85 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 97 94 94 100 92 91 65 91 92 90 91 89 93 91 82 88 93 94 97 91 79 101 90 91 85 94 89 105 102 102 111 94 92 65 92 96 94 95 92 95 95 86 90 95 95 99 93 81 104 91 92 89

UNITS % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A631346

NK3

Method Blank

A631346

NK3

RPD

Value

Page 86 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 96 84 110 106 105 118

QC Limits 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130

50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A631575

Init WPK

QC Type Matrix Spike [AWG694-02]

A631575

WPK

Spiked Blank

A631575

WPK

Method Blank

A631575

WPK

RPD [AWG694-02]

A631576

WPK

Matrix Spike [AWG724-02]

A631576

WPK

Spiked Blank

Parameter 1,4-Difluorobenzene (sur.)

Date Analyzed 2022/07/13

4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.)

2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/13 2022/07/15

2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15

Value

Telephone (403) 291-3077

UNITS %

QC Limits 50 - 140

101 132 109 98 93 100 99 99 79 100 101 119 112 100 96 100 97 98 84 100 101 105 115

50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140 60 - 130 60 - 130 60 - 130 60 - 130 60 - 130 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140

101

% % % % % % % % % % % % % % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % %

99 92 108 93 91 104 99 94 99 103 99 91 109

% % % % % % % % % % % % %

50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140

<0.0050 <0.050 <0.010 <0.040 <0.020 <10 NC NC NC NC NC NC

Page 87 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Recovery 96

Fax (403) 291-9468

50 50 50 50 50 30 50 - 140

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A631576

WPK

Method Blank

A631576

WPK

RPD [AWG724-02]

A631578

RSU

Matrix Spike

A631578

RSU

Spiked Blank

A631578

RSU

Method Blank

Parameter Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) 1,4-Difluorobenzene (sur.) 4-Bromofluorobenzene (sur.) D10-o-Xylene (sur.) D4-1,2-Dichloroethane (sur.) Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10)

Date Analyzed 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/15 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09

Value

<0.0050 <0.050 <0.010 <0.040 <0.020 <10 NC NC NC NC NC NC 97 102 137 109 103 112 107 109 108 96 95 101 128 108 99 104 101 102 103 101 96 101 116 111 <0.0050 <0.050 <0.010 <0.040 <0.020 <10

Page 88 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Recovery 85 81 84 80 84 93 104 98 94 114

Fax (403) 291-9468

UNITS % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

QC Limits 60 - 130 60 - 130 60 - 130 60 - 130 60 - 130 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140

50 50 50 50 50 30 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 50 - 140 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140 60 - 130 60 - 130 60 - 130 60 - 130 60 - 130 60 - 140 50 - 140 50 - 140 50 - 140 50 - 140

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A631578

Init RSU

QC Type RPD

A633100 A633100 A633570

ETS ETS ZSN

Method Blank RPD Matrix Spike [AWG742-01]

A633570

ZSN

Spiked Blank

A633570

ZSN

Method Blank

A633570

ZSN

RPD [AWG742-01]

A633639 A633639 A633644 A633644 A633703

MGL MGL MGL MGL EC0

Method Blank RPD Method Blank RPD [AWG736-01] Matrix Spike [AWG696-01]

A633703

EC0

Spiked Blank

A633703

EC0

Method Blank

A633703 A633707

EC0 EC0

RPD [AWG696-01] Matrix Spike [AWG699-01]

A633707

EC0

Spiked Blank

A633707

EC0

Method Blank

Parameter Benzene Toluene Ethylbenzene m & p-Xylene o-Xylene F1 (C6-C10) Moisture Moisture O-TERPHENYL (sur.)

Date Analyzed 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/05 2022/07/05 2022/07/08

F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) O-TERPHENYL (sur.) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) O-TERPHENYL (sur.) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) Moisture Moisture Moisture Moisture Methanol

2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06

METHYL ISO-BUTYL KETONE (sur.) Methanol METHYL ISO-BUTYL KETONE (sur.) Methanol METHYL ISO-BUTYL KETONE (sur.) Methanol Extractable (Water) Methyl Sulfone (sur.)

2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06

Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Extractable (Water) Methyl Sulfone (sur.) Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Extractable (Water) Methyl Sulfone (sur.) Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol

2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06

Value NC NC NC NC NC NC <0.30 3.0

99 85 91 92 99 86 92 92 97 <10 <50 <50 NC NC NC <0.30 0.73 <0.30 3.4 86 80 97 86 <1.0 83 NC 85 77 86 82 79 90 81 90 89 84 93 <10 <9.0 <10 <10

Page 89 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Recovery

Fax (403) 291-9468

UNITS % % % % % % % % %

QC Limits 50 50 50 50 50 30

% % % % % % % % mg/kg mg/kg mg/kg % % % % % % % %

60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140

% % % mg/kg % % %

50 - 140 70 - 130 50 - 140

% % % % % % % % % % mg/kg mg/kg mg/kg mg/kg

60 - 140 60 - 140 60 - 140 60 - 140 50 - 140 60 - 140 60 - 140 60 - 140 60 - 140 50 - 140

20 60 - 140

40 40 40 20 20 60 - 140

50 - 140 40 50 - 140

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A633707

Init EC0

QC Type RPD [AWG699-01]

A634284

NK3

Matrix Spike

A634284

NK3

Spiked Blank

Parameter Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene

Date Analyzed 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06

Value NC NC NC NC

Page 90 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery

91 84 84 92 93 91 64 94 93 92 89 89 93 92 83 88 96 95 100 92 82 104 92 92 87 95 104 116 114 113 129 102 106 73 121 113 106 113 100 110 102 93 101 99 103 109 98 86

UNITS % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %

QC Limits 50 50 50 50 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A634284

NK3

Method Blank

A634284

NK3

RPD

Parameter 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline D10-ANTHRACENE (sur.) D8-ACENAPHTHYLENE (sur.) D8-NAPHTHALENE (sur.) TERPHENYL-D14 (sur.) Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene Phenanthrene Perylene Pyrene Quinoline Acenaphthene Acenaphthylene Acridine Anthracene Benzo(a)anthracene Benzo(b&j)fluoranthene Benzo(k)fluoranthene Benzo(g,h,i)perylene Benzo(c)phenanthrene Benzo(a)pyrene Benzo(e)pyrene Chrysene Dibenz(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene 1-Methylnaphthalene 2-Methylnaphthalene Naphthalene

Value

Page 91 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 110 103 100 98 102 84 113 108 110 124

UNITS % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % %

QC Limits 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130 50 - 130

50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A634393 A634494

TL0 ZSN

Method Blank Matrix Spike

A634494

ZSN

Spiked Blank

A634494

ZSN

Method Blank

A634494

ZSN

RPD

A634574

ZSN

Matrix Spike [AWG712-01]

A634574

ZSN

Spiked Blank

A634574

ZSN

Method Blank

A634574

ZSN

RPD [AWG712-01]

A634823 A634823 A634823 A634823 A634912

FM0 FM0 FM0 FM0 FM0

A634912 A634912 A634912 A634943

FM0 FM0 FM0 FM0

A634943 A634943 A634943 A634992

FM0 FM0 FM0 EC0

Matrix Spike Spiked Blank Method Blank RPD Matrix Spike [AWG702-03] Spiked Blank Method Blank RPD [AWG702-03] Matrix Spike [AWG712-03] Spiked Blank Method Blank RPD [AWG712-03] Matrix Spike [AWG707-01]

Parameter Phenanthrene Perylene Pyrene Quinoline Moisture O-TERPHENYL (sur.) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) O-TERPHENYL (sur.) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) O-TERPHENYL (sur.) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) F2 (C10-C16 Hydrocarbons) F3 (C16-C34 Hydrocarbons) F4 (C34-C50 Hydrocarbons) O-TERPHENYL (sur.)

Date Analyzed 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07

Value NC NC NC NC <0.30

2022/07/07 2022/07/07 2022/07/07 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/06

Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+)

2022/07/06 2022/07/06 2022/07/06 2022/07/06

<0.080 NC

Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Extractable (Water) Methyl Sulfone (sur.)

2022/07/06 2022/07/06 2022/07/06 2022/07/07

<0.080 NC

117 103 110 115 106 94 99 103 105 <10 <50 <50 NC NC NC 87 86 86 87 101 94 96 96 93 <10 <50 <50 NC NC NC 87 103 <0.080 NC 104 97

92 104

Page 92 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Recovery

Fax (403) 291-9468

UNITS % % % % % % % % % % % % % % mg/kg mg/kg mg/kg % % % %

QC Limits 50 50 50 50

% % % % % % % % mg/kg mg/kg mg/kg % % % % % mg/kg % %

60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140

% mg/kg % %

80 - 120

% mg/kg % %

80 - 120

60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140 60 - 140

40 40 40 60 - 140

40 40 40 75 - 125 80 - 120 35 75 - 125

35 75 - 125

35 50 - 140

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A634992

EC0

Spiked Blank

A634992

EC0

Method Blank

A634992

EC0

RPD [AWG707-01]

A635011

EC0

Matrix Spike [AWG710-01]

A635011

EC0

Spiked Blank

A635011

EC0

Method Blank

A635011 A635087 A635087 A635087 A635087 A635100

EC0 FM0 FM0 FM0 FM0 FM0

A635100 A635100 A635100 A635107 A635107 A635108 A635108 A637119

RPD [AWG710-01] Matrix Spike Spiked Blank Method Blank RPD Matrix Spike [AWG694-03] FM0 Spiked Blank FM0 Method Blank FM0 RPD [AWG694-03] RIL Method Blank RIL RPD [AWG719-01] RIL Method Blank RIL RPD WG4 QC Standard

A637119

WG4 RPD

A637247 A637247 A637250 A637250 A637250 A637298 A637298 A637300

STB STB LZ3 LZ3 LZ3 STB STB LZ0

QC Standard RPD [AWG687-01] QC Standard Spiked Blank RPD [AWG687-01] QC Standard RPD [AWG726-03] QC Standard

Parameter Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Extractable (Water) Methyl Sulfone (sur.) Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Extractable (Water) Methyl Sulfone (sur.) Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Extractable (Water) Ethylene Glycol Extractable (Water) Diethylene Glycol Extractable (Water) Triethylene Glycol Extractable (Water) Propylene Glycol Methanol

Date Analyzed 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07

METHYL ISO-BUTYL KETONE (sur.) Methanol METHYL ISO-BUTYL KETONE (sur.) Methanol METHYL ISO-BUTYL KETONE (sur.) Methanol Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+)

2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/06 2022/07/06 2022/07/06 2022/07/06 2022/07/07

Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Hex. Chromium (Cr 6+) Moisture Moisture Moisture Moisture Sieve - #200 (>0.075mm) Sieve - Pan Sieve - #10 (>2.00mm) Sieve - #200 (>0.075mm) Sieve - Pan Saturation % Saturation % Soluble (CaCl2) pH Soluble (CaCl2) pH Soluble (CaCl2) pH Saturation % Saturation % Soluble (CaCl2) pH

2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/07 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/09

Value

<10 <9.0 <10 <10 NC NC NC NC 74 85 84 88 <1.0 85 NC 99 99 <0.080 NC 88 101 <0.080 NC <0.30 3.3 <0.30 1.8 102 99 1.9 5.5 2.7 95 3.7 99 100 0.17 104 1.3

Page 93 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Recovery 72 84 64 74 88 78 88 74 80 88

Fax (403) 291-9468

UNITS % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg % % % % %

QC Limits 60 - 140 60 - 140 60 - 140 60 - 140 50 - 140 60 - 140 60 - 140 60 - 140 60 - 140 50 - 140

% % % mg/kg % % % % mg/kg % %

50 - 140 70 - 130 50 - 140

% mg/kg % % % % % % % % % % % % % % % % % %

80 - 120

50 50 50 50 60 - 140

50 - 140 40 75 - 125 80 - 120 35 75 - 125

35 20 20 75 - 125 75 - 125 30 30 30 75 - 125 12 97 - 103 97 - 103 N/A 75 - 125 12 97 - 103

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A637300 A637300 A637337 A637337 A637341 A637341 A637341 A637477

Init LZ0 LZ0 NSW NSW LZ0 LZ0 LZ0 KGR

QC Type Spiked Blank RPD [AWG726-03] QC Standard RPD [AWG700-03] QC Standard Spiked Blank RPD [AWG700-03] Matrix Spike [AWG681-01]

A637477

KGR

QC Standard

A637477

KGR

Spiked Blank

Parameter Soluble (CaCl2) pH Soluble (CaCl2) pH Saturation % Saturation % Soluble (CaCl2) pH Soluble (CaCl2) pH Soluble (CaCl2) pH Total Antimony (Sb)

Date Analyzed 2022/07/09 2022/07/09 2022/07/08 2022/07/08 2022/07/09 2022/07/09 2022/07/09 2022/07/08

Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Molybdenum (Mo) Total Nickel (Ni) Total Silver (Ag) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg)

2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08

Value

Telephone (403) 291-3077

UNITS % % % % % % % %

QC Limits 97 - 103 N/A 75 - 125 12 97 - 103 97 - 103 N/A 75 - 125

82 NC 93 87 107 86 81 85 84 90 86 93 88 82 89 87 133 (1) NC 106 95 95 97 98 95 97 103 102 101 85 105 92 101 98 90 89 91 91 89 91 92 93 93 93

% % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %

75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 15 - 182 53 - 147 80 - 119 72 - 128 59 - 141 58 - 142 83 - 117 79 - 121 67 - 133 79 - 121 47 - 153 67 - 133 77 - 123 79 - 121 79 - 121 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

0.029 98 3.3 99 101 0.48

Page 94 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Recovery 101

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A637477

KGR

Method Blank

A637477

KGR

RPD [AWG681-01]

A637606

MKJ

Matrix Spike [AWG719-03]

Parameter Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb)

Date Analyzed 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/09

Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be)

2022/07/09 2022/07/09 2022/07/09

Value

Telephone (403) 291-3077

QC Limits 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

UNITS % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % % %

98 NC 100

% % %

75 - 125 75 - 125 75 - 125

<0.50 <1.0 <1.0 <0.40 <0.050 <1.0 <0.50 <1.0 <0.50 <0.050 <0.40 <1.0 <0.50 <0.20 <0.10 <1.0 <0.20 <1.0 <10 NC 5.4 5.8 0.65 5.5 1.2 4.6 5.9 6.8 7.2 3.3 4.2 6.6 NC 3.2 NC 2.8 8.7 4.6

Page 95 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Recovery 94 92 97 91 93 91 92 93 87

Fax (403) 291-9468

30 30 35 30 30 30 30 30 35 35 35 30 30 35 30 35 30 30 30 75 - 125

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A637606

MKJ

QC Standard

A637606

MKJ

Spiked Blank

A637606

MKJ

Method Blank

Parameter Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Molybdenum (Mo) Total Nickel (Ni) Total Silver (Ag) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba)

Date Analyzed 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09

Value

<0.50 <1.0 <1.0

Page 96 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 104 119 100 99 106 102 108 106 104 105 102 111 108 148 (1) NC 108 100 101 97 92 93 96 111 106 101 96 105 101 100 100 93 88 95 88 92 88 88 88 95 98 96 88 94 94 94 97 96 88 86

UNITS % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % mg/kg mg/kg mg/kg

QC Limits 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 15 - 182 53 - 147 80 - 119 72 - 128 59 - 141 58 - 142 83 - 117 79 - 121 67 - 133 79 - 121 47 - 153 67 - 133 77 - 123 79 - 121 79 - 121 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A637606

MKJ

RPD [AWG719-03]

A637608

KGR

Matrix Spike

Parameter Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U)

Value <0.40 <0.050 <1.0 <0.50 <1.0 <0.50 <0.050 <0.40 <1.0 <0.50 <0.20 <0.10 <1.0 <0.20 <1.0 <10 NC 2.1 0.83 0.28 2.9 0.00066 3.8 0.89 2.4 0.30 1.8 1.0 2.6 NC 16 NC 3.5 3.1 0.15

Page 97 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery

85 91 NC 93 95 116 91 90 92 86 97 96 97 95 89 99 92

UNITS mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % %

QC Limits

30 30 35 30 30 30 30 30 35 35 35 30 30 35 30 35 30 30 30 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A637608

KGR

QC Standard

A637608

KGR

Spiked Blank

A637608

KGR

Method Blank

Parameter Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Molybdenum (Mo) Total Nickel (Ni) Total Silver (Ag) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn)

Value

<0.50 <1.0 <1.0 <0.40 <0.050 <1.0 <0.50 <1.0 <0.50 <0.050 <0.40 <1.0 <0.50 <0.20 <0.10 <1.0

Page 98 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Recovery 156 (1) NC 101 100 99 95 92 95 101 106 105 102 110 102 98 99 101 92 89 92 90 88 86 88 88 91 90 92 87 94 89 91 91 93 88 87

UNITS % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg

QC Limits 75 - 125 75 - 125 15 - 182 53 - 147 80 - 119 72 - 128 59 - 141 58 - 142 83 - 117 79 - 121 67 - 133 79 - 121 47 - 153 67 - 133 77 - 123 79 - 121 79 - 121 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A637608

KGR

RPD

A637862

CTU

A637862 A637862 A637862 A637862 A637920

CTU CTU CTU CTU IK0

Matrix Spike [AWG687-01] QC Standard Spiked Blank Method Blank RPD [AWG687-01] Matrix Spike [AWG687-01]

A637920

IK0

QC Standard

A637920

IK0

Spiked Blank

A637920

IK0

Method Blank

A637920

IK0

RPD [AWG687-01]

Parameter Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Total Antimony (Sb) Total Arsenic (As) Total Barium (Ba) Total Beryllium (Be) Total Cadmium (Cd) Total Chromium (Cr) Total Cobalt (Co) Total Copper (Cu) Total Lead (Pb) Total Mercury (Hg) Total Molybdenum (Mo) Total Nickel (Ni) Total Selenium (Se) Total Silver (Ag) Total Thallium (Tl) Total Tin (Sn) Total Uranium (U) Total Vanadium (V) Total Zinc (Zn) Soluble Chloride (Cl)

Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Boron (B)

2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/09

Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Boron (B) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Boron (B) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Boron (B) Soluble Calcium (Ca)

2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08

Value <0.20 <1.0 <10 NC 2.2 1.8 7.7 2.0 3.8 0.12 2.0 5.3 NC 0.91 1.7 NC NC 1.5 NC 7.0 3.5 4.5

105 106 104 <10 NC 98 99 100 96 101 100 99 103 114 104 98 97 97 95 100 <0.10 <1.5 <1.0 <2.5 <1.3 <5.0 NC 24

Page 99 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Recovery

Fax (403) 291-9468

UNITS mg/kg mg/kg mg/kg % % % % % % % % % % % % % % % % % % % %

QC Limits

% % mg/L % %

75 - 125 80 - 120

% % % % % % % % % % % % % % mg/L mg/L mg/L mg/L mg/L mg/L % %

75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

30 30 35 30 30 30 30 30 35 35 35 30 30 35 30 35 30 30 30 75 - 125

30 75 - 125

30 30

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

A637975 A637975 A637975 A637975 A638049 A638049 A638049 A638049 A638055

ZI ZI ZI ZI ZI ZI ZI ZI TOR

A638055 A638055 A638055 A638055 A638065

QC Type

QC Standard Spiked Blank Method Blank RPD [AWG687-01] QC Standard Spiked Blank Method Blank RPD [AWG726-03] Matrix Spike [AWG726-03] TOR QC Standard TOR Spiked Blank TOR Method Blank TOR RPD [AWG726-03] MPU Matrix Spike [AWG726-03]

A638065

MPU QC Standard

A638065

MPU Spiked Blank

A638065

MPU Method Blank

A638065

MPU RPD [AWG726-03]

A638419 A638419 A638419 A638419 A638452

NQU NQU NQU NQU CTU

QC Standard Spiked Blank Method Blank RPD [AWG700-03] Matrix Spike [AWG700-03]

Parameter Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Chloride (Cl)

Date Analyzed 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08

Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Boron (B)

2022/07/08 2022/07/08 2022/07/08 2022/07/08 2022/07/08

Value 26 11 13 23

105 100 <0.020 13 105 99 <0.020 0.47 107 106 106 <10 NC 99 96 100 92 95 101 104 96 113 109 101 98 101 94 95 <0.10 <1.5 <1.0 <2.5 <1.3 <5.0 2.1 6.7 9.8 9.5 24 23 106 100 <0.020 4.5

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Recovery

Fax (403) 291-9468

106

UNITS % % % % % % dS/m % % % dS/m % %

QC Limits 30 30 30 30 75 - 125 90 - 110

% % mg/L % %

75 - 125 80 - 120

% % % % % % % % % % % % % % mg/L mg/L mg/L mg/L mg/L mg/L % % % % % % % % dS/m % %

75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

20 75 - 125 90 - 110 20 75 - 125

30 75 - 125

30 30 30 30 30 30 75 - 125 90 - 110 20 75 - 125

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch A638452 A638452 A638452 A638452 A638601

Init CTU CTU CTU CTU IK0

QC Type QC Standard Spiked Blank Method Blank RPD [AWG700-03] Matrix Spike [AWG700-03]

A638601

IK0

QC Standard

A638601

IK0

Spiked Blank

A638601

IK0

Method Blank

A638601

IK0

RPD [AWG700-03]

A677981 A677981 A677982 A677982 A677982 A679188

JHC JHC LZ3 LZ3 LZ3 PL

QC Standard RPD [AWG697-03] QC Standard Spiked Blank RPD [AWG697-03] Matrix Spike [AWG697-03]

A679188

QC Standard

A679188

Spiked Blank

A679188

Method Blank

Parameter Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Boron (B)

Date Analyzed 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09

2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/07/09 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12

Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Calcium (Ca)

2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12

Value

<10 0.31 98 97 98 94 99 103 104 101 117 103 97 99 101 96 101 <0.10 <1.5 <1.0 <2.5 <1.3 <5.0 11 5.1 5.9 2.6 3.2 2.5 103 2.5 99 100 0.030 101 105 94 102 93 94 83 91 93 102 106 95 103 <1.5

Page 101 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

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Recovery 106 105

Fax (403) 291-9468

UNITS % % mg/L % %

QC Limits 75 - 125 80 - 120

% % % % % % % % % % % % % % mg/L mg/L mg/L mg/L mg/L mg/L % % % % % % % % % % % %

75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 80 - 120 80 - 120 80 - 120 80 - 120 80 - 120

% % % % % % % % % % % % mg/L

75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 75 - 125 80 - 120 80 - 120 80 - 120 80 - 120

30 75 - 125

30 30 30 30 30 30 75 - 125 12 97 - 103 97 - 103 N/A 75 - 125

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

QUALITY ASSURANCE REPORT(CONT'D) QA/QC Batch

Init

QC Type

A679188

RPD [AWG697-03]

A679267 A679267 A679267 A679267 A679289

ZI ZI ZI ZI CTU

A679289 A679289 A679289 A679289

CTU CTU CTU CTU

QC Standard Spiked Blank Method Blank RPD [AWG697-03] Matrix Spike [AWG697-03] QC Standard Spiked Blank Method Blank RPD [AWG697-03]

Parameter Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Calcium (Ca) Soluble Magnesium (Mg) Soluble Sodium (Na) Soluble Potassium (K) Soluble Sulphate (SO4) Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Conductivity Soluble Chloride (Cl)

Date Analyzed 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12 2022/08/12

Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl) Soluble Chloride (Cl)

2022/08/12 2022/08/12 2022/08/12 2022/08/12

Value <1.0 <2.5 <1.3 <5.0 3.4 19 1.2 1.4 5.0

Recovery

106 100 <0.020 6.3 108 108 109 <10 NC

UNITS mg/L mg/L mg/L mg/L % % % % % % % dS/m % %

QC Limits

% % mg/L %

75 - 125 80 - 120

30 30 30 30 30 75 - 125 90 - 110 20 75 - 125

N/A = Not Applicable Duplicate: Paired analysis of a separate portion of the same sample. Used to evaluate the variance in the measurement. Matrix Spike: A sample to which a known amount of the analyte of interest has been added. Used to evaluate sample matrix interference. 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. NC (Matrix Spike): The recovery in the matrix spike was not calculated. The relative difference between the concentration in the parent sample and the spike amount was too small to permit a reliable recovery calculation (matrix spike concentration was less than the native sample concentration) NC (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 (absolute difference <= 2x RDL).

(1) Recovery or RPD for this parameter is outside control limits. The overall quality control for this analysis meets acceptability criteria.

Page 102 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VALIDATION SIGNATURE PAGE The analytical data and all QC contained in this report were reviewed and validated by:

Ghayasuddin Khan, M.Sc., P.Chem., QP, Scientific Specialist, Inorganics

Janet Gao, B.Sc., QP, Supervisor, Organics

Luba Shymushovska, B.Sc., QP, Senior Analyst, Organics

Maria Magdalena Florescu, Ph.D., P.Chem., QP, Inorganics Manager

Sandy Yuan, M.Sc., QP, Scientific Specialist

Suwan (Sze Yeung) Fock, B.Sc., Scientific Specialist

Veronica Falk, B.Sc., P.Chem., QP, Scientific Specialist, Organics

Page 103 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

Fax (403) 291-9468

Bureau Veritas Job #: C246792 Report Date: 2022/08/13

Arletta Environmental Consulting Client Project #: RB.75.03 Site Location: 12-25-054-25 W4M Your P.O. #: 9220571CS Sampler Initials: NM

VALIDATION SIGNATURE PAGE(CONT'D) The analytical data and all QC contained in this report were reviewed and validated by:

Automated Statchk

Bureau Veritas has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per ISO/IEC 17025, signing the reports. For Service Group specific validation please refer to the Validation Signature Page.

Page 104 of 104 Bureau Veritas Calgary: 2021 - 41st Avenue N.E. T2E 6P2

Telephone (403) 291-3077

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Ridgeback Resources Inc. RB.75.03

Phase 2 Environmental Site Assessment 12-25-054-25W4(100)

Appendix VI: Government of Alberta Professional Declaration for Reclamation Certificate Applications

Prepared by: Arletta Environmental Consulting Corp.

November 2022