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HomeMy WebLinkAbout69-26 Limited Subsurface Investigation ReportFiled in Clerk's Office Oct 12, 2026 Bianca Tirado City Clerk, South Bend, IN LIMITED SUBSURFACE INVEST I GA TIO NI Vacant Parcels 2018-2026 S. Main Street South Bend, Indiana 46601 Prepared for: City of South Bend Department of Community Investment 215 S. Dr. Martin Luther King Jr. Boulevard South Bend, Indiana 46601 Prepared by: Project No. 26-0526 April 20, 2026 \ \ Limited Subsurface Investigation 2018-2026 S. Main Street, South Bend, Indiana Page | 1 April 20, 2026 1.0 INTRODUCTION 1.1 Purpose and Background On behalf of the City of South Bend Department of Community Investment (City), Heron Environmental, LLC (HERON) has prepared this Limited Subsurface Investigation (LSI) to document activities that have been completed at the parcels of vacant land located at 2018-2026 S. Main Street, in South Bend, Indiana (the Property). HERON understands that the Property is being considered for residential development. A Phase I Environmental Site Assessment of the Property was previously completed by Professional Service Industries, Inc. (PSI), dated March 23, 2026. PSI concluded that there were no Recognized Environmental Conditions (RECs), controlled-RECs, historical-RECs, significant data gaps, or potential vapor encroachment conditions (VECs) identified in connection with the Property. According to the PSI report the Property was originally developed with residential structures as early as 1917 with residential use continuing through the 1950s and by the 1950s the Property also supported commercial use including a furniture store, apartment complex, and several automobile garages. The Property reportedly transitioned to vacant land by 1975 and was redeveloped for commercial use between 1980 and 2010. Commercial operations initially consisted of silo construction and later conveyor millwright work and from 1987 to 2005 was occupied by Engineered Material Improvement (EMI) for abrasive blast cleaning and peening services. EMI abandoned the Property in 2005. The City, as prospective purchaser, submitted a Comfort Letter Request to the Indiana Department of Environmental Management (IDEM) Indiana Brownfields Program (IBP) in March 2010 based on the findings of a Phase I Environmental Site Assessment, dated March 15, 2010, prepared by Wightman Petrie, Inc. (WPI) for the EMI facility. WPI identified the following RECs in connection with the Property: •Equipment containing hydraulic oil and other hazardous substances is still inside the building, •Containerized fluid in the building that was not labeled or properly containerized, •Suspected asbestos containing material (ACM) were identified on the roof of the building as wellas the vent pipe wraps, insulation, floor tiles and ceiling tiles, •Spent abrasive materials are present in particulate form throughout the interior of the buildingand caked on the asphalt paving south of the building in an area that apparently contained a dustcollector.The following reasonable steps were recommended in the Comfort Letter, dated May 5, 2010: 1.The containerized chemicals inside the building should be characterized, removed and properlydisposed.2.The hydraulic equipment should be drained of product. Both the product and the equipmentshould be properly disposed.3.All friable asbestos should be inspected/removed by a licensed Indiana asbestos abatementcontractor prior to any building demolition, including proper notification of IDEM’s Office of AirManagement.4.The spent abrasive material/dust identified inside the building, as well as to the south of thebuilding, should be characterized and properly disposed.5.Samples should be collected from the water pits identified inside the building to determine thewater’s composition and proper disposal method.The City acquired the property in October 2011, and the building was subsequently demolished in 2012 Limited Subsurface Investigation 2018-2026 S. Main Street, South Bend, Indiana Page | 2 April 20, 2026 with all the reasonable steps outlined in the Comfort Letter reportedly addressed. The City has indicated to the prospective developer that they will maintain responsibility for environmental issues that may be encountered during development. As such, the City requested HERON conduct environmental investigation to assess the potential for such environmental issues and the scope of work presented herein was completed in response to the request. 1.2 Property Location and Description The Property is in St. Joseph County, Portage Township, within the incorporated area of the City of South Bend, situated on the east side of S. Main Street, on the northeast corner of the intersection with Donald Street. The Property consists of three parcels of land, Parcel Nos. 71-08-13-355-002.000-026, 71-08-13-355-003.000-026, and 71-08-13-355-004.000-026, totaling approximately 1.07-acres. The Property is currently vacant land and is depicted on a 2023 aerial photograph provided as Figure 1 in Appendix A. 2.0 SCOPE OF WORK 2.1 Soil Sampling Methodology On April 7, 2026, nine soil borings were completed at the Property. Soil boring locations are presented on Figure 2 in Appendix A, which incorporates a 2005 aerial photograph to depict boring locations in relation to historical EMI commercial use. The borings were advanced in 5-foot intervals and soil samples were collected from every 2-foot interval and split into two portions. For each sample, one portion was placed directly into a laboratory provided sample container and placed on ice in a cooler, while the other portion was placed in a plastic baggie for field screening. Field screening was completed with a photoionization detector (PID) to detect the presence of volatile organic vapors in parts per million (ppm). Soil conditions and field screening results were recorded on soil boring logs completed for each boring, which are provided in Appendix B. One soil sample from each soil boring was submitted for laboratory analysis of volatile organic compounds (VOCs) via US EPA Method 5035/8260, polynuclear aromatic hydrocarbons (PAHs) via US EPA Method 8270, and Resource Conservation and Recovery Act (RCRA) metals (arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver) via US EPA Method 6010. Soil samples for VOCs analysis were collected using 5-gram terra-core samplers and US EPA field preservation SW-846 Method 5035A. The sample containers were placed on ice in a cooler for delivery to Microbac Laboratories in Merrillville, Indiana. 2.4 Groundwater Sampling Methodology Three of the borings were advanced until saturated conditions (i.e., groundwater) was encountered and temporary wells were installed using a 5-foot section of 1.0-inch diameter, 0.010-inch slotted screen PVC placed at a depth to straddle the groundwater interface and completed to the surface with 1.0-inch diameter PVC riser. A peristaltic pump was used to pump the wells until discharge became relatively free of suspended particles and groundwater samples were collected into laboratory supplied containers and submitted for laboratory analysis of VOCs (Method 8260). Sample containers were placed on ice in a cooler for delivery to Microbac Laboratories in Merrillville, Indiana. Following sample collection, the temporary well was removed, and the borehole was backfilled with bentonite chips. Limited Subsurface Investigation 2018-2026 S. Main Street, South Bend, Indiana Page | 3 April 20, 2026 3.0 FINDINGS 3.1 Soil Boring Findings 3.1.1 Geology Soil borings were completed to total depths of 10-feet below ground surface (ft. bgs) to assess the surficial conditions at the Property. Three of the borings, B-3, B-6, and B-9 were completed to total depths of 20-ft. bgs for temporary well installation. Soil encountered at the Property generally consisted of loose silty sand topsoil from surface to approximately 1-ft. bgs, underlain by fine to coarse grained sand with varying amounts of gravel to approximately 18-ft. bgs, underlain by dense clay. Some red brick fragments were observed in the 1 to 10-ft. bgs intervals of boring B-4, coal/slag fragments were observed in the 1 to 3-ft. bgs interval of boring B-8, and a pale granular material, possibly incinerator residue, was observed from 4 to 7-ft. bgs in boring B-9. Saturated soil conditions (i.e., groundwater) were encountered at approximately 15 to 16-ft. bgs. The 1 to 2-ft. bgs interval of borings B-1, B-2, B-3, B-4, B-5, B-6, B-7, and B-8 were submitted for laboratory analysis to assess the soil conditions that will be encountered during development. The 5 to 7-ft. bgs interval of boring B-9 was submitted for laboratory analysis to assess the pale granular material observed. 3.1.2 Field Screening There was no visual or olfactory evidence of potential contamination (i.e., petroleum staining or odors) observed in any of the soil borings and PID readings were below 1.0 ppm except for in boring B-9, which reported PID readings of 1.0 to 1.3 ppm for the 5 to 15-ft. bgs intervals. 3.1.3 Soil Analytical Results The laboratory analytical results for soil samples are presented on Tables 1, 2, and 3 in Appendix C and the complete laboratory analytical report is provided in Appendix D. Each sample reported at least one VOC above the laboratory method detection limits (MDLs) with acetone, trans-1,2-dichloroethene, ethylbenzene, methyl bromide, methylene chloride, 2-methylnaphthalene, naphthalene, tetrachloroethene, tolune, 1,2,4-trimethylbenzene, and xylenes each reported in one or more of the soil samples; however the reported concentrations were all below 0.1 milligram per kilogram (mg/kg) and several orders of magnitude below their applicable IDEM Risk-based Closure Guide (R2) Published Levels (PLs). Several PAHs were reported at concentrations above the MDLs in the samples from boring B-2, B-5, B-6, B-7, and B-8; however, the reported concentrations were all below 1.0 mg/kg and several orders of magnitude below their applicable R2 PLs. The metals arsenic, barium, cadmium, chromium, lead, and mercury were reported in several of the soil samples at concentrations above the MDLs but well below applicable PLs. The highest reported concentration for arsenic was 2.88 mg/kg, below the PL of 10; barium was 96.8 mg/kg, below the PL of 20,000; cadmium was 0.136 mg/kg, below the PL of 10; lead was 143 mg/kg, below the PL of 200; and mercury was 0.118 mg/kg, below the PL of 3. Reported total chromium concentrations ranged from 4.15 to 11.9 mg/kg. Chromium speciation of the samples was not conducted and there is no PL for total chromium. The long-term residential PL for hexavalent chromium (Cr VI) is 4 mg/kg and the short-term excavation PL is 3,000 mg/kg. While noting that the reported concentrations of total chromium exceed the most stringent PL for Cr VI the reported concentrations are consistent across the Property indicating they are representative of naturally occurring total chromium concentrations and not associated with Cr VI, which is typically associated with electroplating, stainless steel production, and pigment manufacturing, Limited Subsurface Investigation 2018-2026 S. Main Street, South Bend, Indiana Page | 4 April 20, 2026 which are activities not known to have been conducted a the Property. 3.2 Groundwater Analytical Results The laboratory analytical results for groundwater samples are presented on Table 4 in Appendix C and the complete laboratory analytical report is provided in Appendix D. The only VOCs reported above the MDLs were acetone at concentrations of 0.93 to 2.3 micrograms per liter (ug/l), well below the PL of 20,000; tetrachloroethylene at 0.21 to 0.51 ug/l, well below the PL of 5; and toluene at 0.18 to 0.25 ug/l, well below the PL of 1,000. 4.0 CONCLUSIONS & RECOMMENDATIONS The results of this LSI did not identify evidence of potential contaminant concentrations above the applicable IDEM published levels. Based on the results of the soil samples analysis there does not appear to be any evidence of soil impact that would require consideration for residential exposure, or for proper handling or disposal during development. The results of the groundwater samples analysis do not indicate any potential groundwater contamination originating at or migrating through the Property. There is no evidence of a potential VEC to exist at the Property. Based on these results it is HERON’s opinion that no further assessment of the Property is warranted. HERON has prepared this LSI in accordance with generally accepted industry standards of practice and consisting of a scope of work that would be considered reasonable and sufficient to identify the presence of a release at the Property. Should you have any questions or need any additional information please contact me at 574-333-4553 or via email at jbennett@heronenviro.com. Sincerely, James R. Bennett APPENDIX A FIGURES Approximate Property Parcel Boundaries N FIGURE 1 AERIAL PHOTOGRAPH Vacant Lots 2018-2026 S. Main Street South Bend, Indiana Heron Project: 26-0526 Source: Google Earth 2023 Aerial Photograph Approximate Scale: 1” = 60’ Prepared: Apr. 2026 By: JRB Paved Lot Rally’s Restaurant John’s Barber Shop Residence Watcon Industrial Water Treatment Residences Residence Approximate Property Parcel Boundaries Soil Boring Locations Groundwater Sample Location N FIGURE 2 SOIL BORING LOCATIONS Vacant Lots 2018-2026 S. Main Street South Bend, Indiana Heron Project: 26-0526 Source: Google Earth 2005 Aerial Photograph Approximate Scale: 1” = 60’ Prepared: Apr. 2026 By: JRB B-1 B-2 B-3 B-4 B-5 B-6 B-7 B-8 B-9 APPENDIX B BORING LOGS NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-1 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 08:45 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 4.00 3.50 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, loose, moist, dark reddish-brown (8') Poorly graded SAND (SP); mostly fine-medium grained sand, few fine gravel, medium dense, moist, light yellowish-brown (10') Boring terminated 0.2 0.3 0.3 0.3 B-1 (1-2) 0 5 10 15 20 25 NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-2 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 09:00 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 3.50 3.50 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, loose, moist, dark yellowish-brown (8') Poorly graded SAND (SP); mostly fine-medium grained sand, few fine gravel, medium dense, moist, light yellowish-brown (10') Boring terminated 0.4 0.5 0.5 0.6 B-2 (1-2) 0 5 10 15 20 25 NOTES: Water sample B-3 (GW) collected at 15-18.0 ft bgs. generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-3 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 09:25 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 20.0 Direct Push 15.0 DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP DP DP 4.00 4.00 4.00 2.50 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, loose, moist, dark yellowish-brown (8') Poorly graded SAND (SP); mostly fine-medium grained sand, few fine gravel, loose, moist, light yellowish-brown (10') Silty SAND (SM); mostly fine grained sand, some silt, well-graded, loose, moist, light yellowish-brown (13') Well-graded SAND (SW); mostly fine-medium grained sand, trace fine gravel, medium dense, moist, light yellowish-brown (17') Lean CLAY (CL); trace fine gravel, trace fine-medium sand, little silt, mostly clay, medium plasticity, stiff, moist, dark bluish-gray (20') Boring terminated 0.4 0.4 0.5 0.6 0.5 0.7 0.6 B-3 (1-2) 0 5 10 15 20 25 NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-4 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 10:10 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 3.75 4.00 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Poorly graded SAND with silt (SP-SM); mostly fine-medium grained sand, trace fine gravel, little silt, loose, moist, dark reddish-brown (3') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, medium dense, moist, light yellowish-brown (10') Boring terminated 0.5 0.5 0.6 0.7 B-4 (1-2) 0 5 10 15 20 25 NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-4 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 10:10 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 3.75 4.00 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Poorly graded SAND with silt (SP-SM); mostly fine-medium grained sand, trace fine gravel, little silt, loose, moist, dark reddish-brown (3') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, medium dense, moist, light yellowish-brown (10') Boring terminated 0.5 0.5 0.6 0.7 B-4 (1-2) 0 5 10 15 20 25 NOTES: Water sample B-6 (GW) collected at 16-20.0 ft bgs. generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-6 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 10:45 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 20.0 Direct Push 16.0 DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP DP DP 4.00 4.00 4.00 4.00 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, little silt, poorly graded, loose, moist, dark reddish-brown (4') Poorly graded SAND (SP); mostly fine-coarse grained sand, few fine gravel, medium dense, moist, light yellowish-brown (16') Poorly graded SAND with gravel (SP); mostly coarse grained sand, some fine gravel, medium dense, wet, light yellowish-brown (18') Lean CLAY (CL); trace fine gravel, trace fine-medium sand, little silt, mostly clay, medium plasticity, stiff, moist, dark bluish-gray (19') Poorly graded SAND (SP); mostly fine-medium grained sand, trace fine gravel, medium dense, wet, dark yellowish-gray (20') Boring terminated 0.3 0.4 0.4 0.6 0.7 0.7 0.7 B-6 (1-2) 0 5 10 15 20 25 NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-7 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 11:20 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 3.00 4.00 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, dark reddish-brown (2.5') Sandy lean CLAY (CL); trace fine gravel, little fine-medium sand, little silt, mostly clay, medium plasticity, soft, moist, dark reddish-brown (4') Poorly graded SAND (SP); mostly fine-medium grained sand, few fine gravel, loose, moist, dark reddish-brown (10') Boring terminated 0.6 0.6 0.7 0.7 B-7 (1-2) 0 5 10 15 20 25 NOTES: generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-8 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 11:35 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP 3.00 3.75 (0') Silty SAND (SM); mostly fine-medium grained sand, trace fine gravel, some silt, trace clay, poorly graded, loose, moist, very dark reddish-brown (1') Silty SAND (SM); mostly fine-medium grained sand, few fine gravel, little silt, poorly graded, loose, moist, dark reddish-brown, Some coal fragments and cinder (3') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, medium dense, moist, dark yellowish-brown (10') Boring terminated 0.7 0.7 0.7 0.7 B-8 (1-2) 0 5 10 15 20 25 NOTES: Water sample B-9 (GW) collected at 16-16.5 ft bgs. generated using GroundLogs.online Client: Project: Address: City of South Bend 26-0526 2018-2026 S. Main Street, South Bend, IN BORING LOG Boring No. Page: B-9 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 04/07/2026 11:50 D&T Drilling Direct Push Geoprobe 6620 J. Bennett Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 20.0 Direct Push 16.0 DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 25 DP DP DP DP 3.00 1.50 3.50 3.00 (0') Poorly graded SAND with gravel (SP); mostly fine-medium grained sand, little fine gravel, little silt, trace clay, loose, moist, dark reddish-brown (1') Silty SAND (SM); mostly fine-medium grained sand, few fine gravel, little silt, poorly graded, loose, moist, dark reddish-brown, at 4' pale granular material consistent with very old concrete or incinerator residue (6') Poorly graded SAND (SP); mostly fine-medium grained sand, few fine gravel, medium dense, moist, light yellowish-brown (18') Lean CLAY (CL); trace fine gravel, trace fine-medium sand, little silt, mostly clay, medium plasticity, stiff, moist, dark bluish-gray (20') Boring terminated 0.6 0.6 1.0 1.0 1.3 0.6 0.6 B-9 (5-7) 0 5 10 15 20 25 NOTES: BORING AND WELL LOG LEGEND LITHOLOGYWATER LEVELWELL/BORINGCOMPLETIONSample TypeDESCRIPTION GR EN SS SH CO DP ID ASPHALT CONCRETE BEDROCK IGNEOUS Rock METAMORPHIC Rock SEDIMENTARY Rock Well-graded GRAVEL (GW) Poorly graded GRAVEL (GP) Silty GRAVEL (GM) Clayey GRAVEL (GC) Well-graded GRAVEL with silt (GW-GM) Poorly graded GRAVEL with silt (GP-GM) Well-graded GRAVEL with clay (GW-GC) Poorly graded GRAVEL with clay (GP-GC) Well-graded SAND (SW) Poorly graded SAND (SP) Silty SAND (SM) Clayey SAND (SC) Well-graded SAND with silt (SW-SM) Poorly graded SAND with silt (SP-SM) Well-graded SAND with clay (SW-SC) Poorly graded SAND with clay (SP-SC) SILT (ML) Lean CLAY (CL) Organic SOIL (OL) Elastic SILT (MH) Fat CLAY (CH) Organic SOIL (OH) Organic SOIL (OL/OH) PEAT (PT) Volume Descriptors: Trace = <5% Few = 5-10% Little = 15-25% Some = 30-45% Mostly = >=50% Water Level During Drilling Water Level at End of Drilling/in Completed Well Cap Riser Screen End Plug Annular Seal (Bentonite-Cement Grout, Bentonite Slurry/Chips/Pellets/Powder, Other) Sanitary Seal (Bentonite Slurry/Chips/Pellets/Powder, Other) Filter Pack (Sand, Gravel, Other) Backfill Grab Encore Split Spoon Shelby Tube Core Barrel Direct Push Lab Sample and ID APPENDIX C ANALYTICAL SUMMARY TABLES Table 1 Soil Analytical Results - Volatile Organic Compounds 2018-2026 S. Main Street, South Bend, Indiana B-1 (1-2)B-2 (1-2)B-3 (1-2)B-4 (1-2)B-5 (1-2)B-6 (1-2)B-7 (1-2)B-8 (1-2)B-9 (5-7) 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 Volatile Organic Compounds (Method 8260) Long Term Residential (mg/kg) Short Term Excavation (mg/kg) Percent Solids 93.5 91 92.9 92.3 92 90.5 90 90.2 91.4 Acetone 100000 0.0048 < 0.0049 < 0.0047 0.0045 0.007 < 0.0043 < 0.0041 < 0.0043 < 0.0044 Acrylonitrile 100 < 0.027 < 0.03 < 0.028 < 0.026 < 0.029 < 0.026 < 0.025 < 0.026 < 0.027 Benzene 2000 < 0.00087 < 0.00096 < 0.0009 < 0.00083 < 0.00091 < 0.00083 < 0.00079 < 0.00083 < 0.00085 Bromodichloromethane 900 < 0.00086 < 0.00095 < 0.00089 < 0.00082 < 0.0009 < 0.00082 < 0.00079 < 0.00082 < 0.00084 Bromoform 900 < 0.0016 < 0.0018 < 0.0017 < 0.0016 < 0.0017 < 0.0016 < 0.0015 < 0.0016 < 0.0016 2-Butanone 30000 < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0012 < 0.0011 < 0.0011 < 0.0011 < 0.0011 Carbon Disulfide 700 < 0.0011 < 0.0012 < 0.0011 < 0.001 < 0.0011 < 0.001 < 0.00096 < 0.001 < 0.001 Carbon tetrachloride 500 < 0.0011 < 0.0012 < 0.0011 < 0.001 < 0.0011 < 0.001 < 0.00099 < 0.001 < 0.0011 Chlorobenzene 800 < 0.00055 < 0.00061 < 0.00057 < 0.00053 < 0.00058 < 0.00053 < 0.0005 < 0.00053 < 0.00054 Chlorodibromomethane 800 < 0.001 < 0.0011 < 0.0011 < 0.00098 < 0.0011 < 0.00098 < 0.00093 < 0.00098 < 0.001 Chloroethane 2000 < 0.0019 < 0.0021 < 0.002 < 0.0018 < 0.002 < 0.0018 < 0.0018 < 0.0019 < 0.0019 Chloroform 100 < 0.00063 < 0.0007 < 0.00066 < 0.0006 < 0.00067 < 0.00061 < 0.00058 < 0.00061 < 0.00062 1,2-Dibromo-3-chloropropane 0.07 90 < 0.0021 < 0.0023 < 0.0022 < 0.002 < 0.0022 < 0.002 < 0.0019 < 0.002 < 0.0021 1,2-Dibromoethane 200 < 0.0014 < 0.0016 < 0.0015 < 0.0014 < 0.0015 < 0.0014 < 0.0013 < 0.0014 < 0.0014 1,1-Dichloroethane 2000 < 0.0011 < 0.0012 < 0.0012 < 0.0011 < 0.0012 < 0.0011 < 0.001 < 0.0011 < 0.0011 1,2-Dichloroethane 700 < 0.0016 < 0.0017 < 0.0016 < 0.0015 < 0.0017 < 0.0015 < 0.0014 < 0.0015 < 0.0016 1,1-Dichloroethene 100 < 0.0012 < 0.0014 < 0.0013 < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0012 < 0.0012 cis-1,2-Dichloroethene 1000 < 0.00073 < 0.0008 < 0.00075 < 0.00069 < 0.00076 < 0.00069 < 0.00066 < 0.0007 < 0.00071 trans-1,2-Dichloroethene 2000 < 0.001 < 0.0011 < 0.001 < 0.00096 0.024 < 0.00096 < 0.00092 < 0.00096 < 0.00098 1,2-Dichloropropane 400 < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0012 < 0.0011 < 0.0011 < 0.0011 < 0.0012 cis-1,3-Dichloropropene NPL < 0.00053 < 0.00059 < 0.00055 < 0.00051 < 0.00056 < 0.00051 < 0.00049 < 0.00051 < 0.00052 trans-1,3-Dichloropropene NPL < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0013 < 0.0011 < 0.0011 < 0.0011 < 0.0012 Ethylbenzene 500 < 0.00094 < 0.001 < 0.00098 < 0.0009 0.0018 < 0.0009 < 0.00086 < 0.0009 < 0.00092 2-Hexanone 3000 < 0.0023 < 0.0025 < 0.0024 < 0.0022 < 0.0024 < 0.0022 < 0.0021 < 0.0022 < 0.0022 Methyl bromide 200 < 0.0015 < 0.0017 < 0.0016 0.0017 < 0.0016 < 0.0015 < 0.0014 < 0.0015 < 0.0015 Methyl chloride 1000 < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0012 < 0.0011 < 0.0011 < 0.0011 < 0.0011 Methyl-t-Butyl Ether 9000 < 0.0018 < 0.002 < 0.0019 < 0.0018 < 0.0019 < 0.0018 < 0.0017 < 0.0018 < 0.0018 4-Methyl-2-pentanone 3000 < 0.0021 < 0.0024 < 0.0022 < 0.002 < 0.0023 < 0.0021 < 0.002 < 0.0021 < 0.0021 Methylene chloride 3000 0.0087 0.0088 < 0.0021 0.0023 0.012 0.0024 0.0023 0.0045 0.0041 1-Methylnaphthalene 0.3 4 < 0.01 < 0.011 < 0.011 < 0.0098 < 0.011 < 0.0098 < 0.0093 < 0.0098 < 0.01 2-Methylnaphthalene 300 7000 < 0.00055 0.0016 < 0.00057 < 0.00053 < 0.00058 < 0.00053 < 0.0005 < 0.00053 < 0.00054 Naphthalene 30 3000 < 0.0021 0.0071 < 0.0022 < 0.002 < 0.0022 < 0.002 < 0.0019 < 0.002 < 0.002 Styrene 900 < 0.00077 < 0.00084 < 0.0008 < 0.00073 < 0.00081 < 0.00073 < 0.0007 < 0.00073 < 0.00075 1,1,1,2-Tetrachloroethane 700 < 0.00083 < 0.00091 < 0.00086 < 0.00079 < 0.00087 < 0.00079 < 0.00076 < 0.00079 < 0.00081 1,1,2,2-Tetrachloroethane 2000 < 0.0014 < 0.0015 < 0.0014 < 0.0013 < 0.0014 < 0.0013 < 0.0012 < 0.0013 < 0.0013 Tetrachloroethene 200 < 0.0012 < 0.0013 < 0.0013 < 0.0012 < 0.0013 0.0015 < 0.0011 < 0.0012 < 0.0012 Toluene 800 0.0013 0.0012 0.001 0.00089 0.012 < 0.00076 < 0.00073 0.00077 0.00084 1,1,1-Trichloroethane 600 < 0.0011 < 0.0012 < 0.0012 < 0.0011 < 0.0012 < 0.0011 < 0.001 < 0.0011 < 0.0011 1,1,2-Trichloroethane 30 < 0.0013 < 0.0014 < 0.0013 < 0.0012 < 0.0014 < 0.0012 < 0.0012 < 0.0012 < 0.0013 Trichloroethene 100 < 0.0014 < 0.0015 < 0.0014 < 0.0013 < 0.0014 < 0.0013 < 0.0013 < 0.0013 < 0.0013 Trichlorofluoromethane 1000 < 0.0012 < 0.0013 < 0.0013 < 0.0012 < 0.0013 < 0.0012 < 0.0011 < 0.0012 < 0.0012 1,2,4-Trimethylbenzene 200 0.0013 < 0.00081 < 0.00077 < 0.0007 0.0023 < 0.0007 < 0.00067 < 0.00071 < 0.00072 1,3,5-Trimethylbenzene 200 < 0.00086 < 0.00095 < 0.00089 < 0.00082 < 0.0009 < 0.00082 < 0.00079 < 0.00082 < 0.00084 Vinyl Acetate 3000 < 0.0021 < 0.0024 < 0.0022 < 0.002 < 0.0022 < 0.002 < 0.002 < 0.002 < 0.0021 Vinyl chloride 1000 < 0.0013 < 0.0014 < 0.0014 < 0.0012 < 0.0014 < 0.0013 < 0.0012 < 0.0013 < 0.0013 m,p-Xylene NPL < 0.0018 < 0.002 < 0.0019 < 0.0017 0.0077 < 0.0017 < 0.0016 < 0.0017 < 0.0018 o-Xylene NPL < 0.00092 < 0.001 < 0.00096 < 0.00088 0.0024 < 0.00088 < 0.00084 < 0.00088 < 0.0009 Total Xylenes 300 < 0.0026 < 0.0028 < 0.0027 < 0.0025 0.01 < 0.0025 < 0.0024 < 0.0025 < 0.0025 Notes: mg/kg - milligrams per kilogram Bold results are above the laboratory method detection limit NPL - No published level NPL Soil Exposure Soil Boring Samples Published levels as established by the Indiana Department of Environmental Management Risk-based Closure Guide (R2), Table 1 Sample ID Date of Collection Not Applicable NPL NPL Soil Analytical Results Summary Tables Page 1 of 3 Table 2 Soil Analytical Results - Polynuclear Aromatic Hydrocarbons 2018-2026 S. Main Street, South Bend, Indiana B-1 (1-2)B-2 (1-2)B-3 (1-2)B-4 (1-2)B-5 (1-2)B-6 (1-2)B-7 (1-2)B-8 (1-2)B-9 (5-7) 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 Polynuclear Aromatic Hydrocarbons (Method 8310) Long Term Residential (mg/kg) Short Term Excavation (mg/kg) Acenaphthene 5000 100000 < 0.043 < 0.044 < 0.043 < 0.043 < 0.043 < 0.044 < 0.044 < 0.044 < 0.043 Acenaphthylene < 0.045 < 0.046 < 0.045 < 0.046 < 0.046 < 0.046 0.049 < 0.047 < 0.046 Anthracene 30000 100000 < 0.031 0.035 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 < 0.032 Benzo[a]anthracene 20 10000 < 0.024 0.074 < 0.024 < 0.024 0.034 0.043 0.36 0.097 < 0.025 Benzo[a]pyrene 2 500 < 0.025 0.07 < 0.025 < 0.025 0.034 0.043 0.38 0.1 < 0.025 Benzo[b]fluoranthene 20 10000 < 0.029 0.085 < 0.029 < 0.029 0.046 0.056 0.58 0.14 < 0.03 Benzo[g,h,i]perylene < 0.023 0.031 < 0.023 < 0.023 0.027 < 0.024 0.22 0.049 < 0.023 Benzo[k]fluoranthene 200 100000 < 0.061 < 0.062 < 0.061 < 0.061 < 0.062 < 0.062 0.12 < 0.063 < 0.062 Chrysene 2000 100000 < 0.026 0.063 < 0.027 < 0.027 0.033 0.042 0.37 0.096 < 0.027 Dibenz[a,h]anthracene 2 1000 < 0.034 < 0.035 < 0.035 < 0.035 < 0.035 < 0.035 0.06 < 0.035 < 0.035 Fluoranthene 3000 70000 < 0.028 0.17 < 0.028 < 0.028 0.054 0.085 0.31 0.17 < 0.028 Fluorene 3000 70000 < 0.038 < 0.039 < 0.038 < 0.038 < 0.038 < 0.039 < 0.039 < 0.039 < 0.038 Indeno[1,2,3cd]pyrene 20 10000 < 0.02 0.027 < 0.02 < 0.021 < 0.021 < 0.021 0.21 0.044 < 0.021 Naphthalene 30 3000 < 0.047 < 0.048 < 0.047 < 0.048 < 0.048 < 0.048 < 0.048 < 0.048 < 0.048 Phenanthrene < 0.028 0.15 < 0.028 < 0.028 0.033 0.047 < 0.029 0.093 < 0.028 Pyrene 3000 50000 < 0.028 0.11 < 0.028 < 0.028 0.044 0.061 0.26 0.14 < 0.028 1-Methylnaphthalene 0.3 4 < 0.07 < 0.072 < 0.071 < 0.071 < 0.072 < 0.072 < 0.073 < 0.073 < 0.072 2-Methylnaphthalene 300 7000 < 0.049 < 0.05 < 0.049 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 Notes: mg/kg - milligrams per kilogram Bold results are above the laboratory method detection limit NPL - No published level Soil Boring Samples Published levels as established by the Indiana Department of Environmental Management Risk-based Closure Guide (R2), Table 1 NPL NPL NPL Sample ID Date of Collection Soil Exposure Soil Analytical Results Summary Tables Page 2 of 3 Table 3 Soil Analytical Results - RCRA Metals 2018-2026 S. Main Street, South Bend, Indiana B-1 (1-2)B-2 (1-2)B-3 (1-2)B-4 (1-2)B-5 (1-2)B-6 (1-2)B-7 (1-2)B-8 (1-2)B-9 (5-7) 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 4/7/2026 Metals (Method (7471/6010) Long Term Residential (mg/kg) Short Term Excavation (mg/kg) Mercury 3 3 0.0132 0.0176 0.0128 0.0129 0.0684 0.118 0.015 0.0525 < 0.00729 Arsenic 10 900 1.37 2.88 1.62 1.85 1.68 2.79 1.89 1.95 1.77 Barium 20000 100000 36.2 34.5 30 39.1 76.3 82.7 39.4 96.8 6.98 Cadmium 10 200 < 0.0135 < 0.0132 < 0.013 < 0.0135 0.116 0.136 < 0.0139 0.0471 < 0.0137 Chromium (Total)9.89 9.63 10.3 11.9 10.1 7.67 7.35 8.62 4.15 Lead 200 1000 10.8 45 6.35 11 143 88.6 19.1 108 4.86 Selenium 500 10000 < 0.332 < 0.326 < 0.319 < 0.333 < 0.338 < 0.31 < 0.342 < 0.335 < 0.337 Silver 500 10000 < 0.0571 < 0.056 < 0.0548 < 0.0573 < 0.058 < 0.0533 < 0.0587 < 0.0575 < 0.0579 Notes: Published levels as established by the Indiana Department of Environmental Management Risk-based Closure Guide, Table 1 mg/kg - milligrams per kilogram Bold and italicized results are above the laboratory method detection limits NPL* - No publised level - most stringent published levels for Chromium (VI) are 4 mg/kg long term commercial and 3000 mg/kg short term excavation. Soil Boring Samples NPL* Sample ID Date of Collection Soil Exposure Table 4 Groundwater Analytical Results - Volatile Organic Compounds 2018-2026 S. Main Street, South Bend, Indiana Sample ID B-3 (GW)B-6 (GW)B-9 (GW) Date of Collection 4/7/2026 4/7/2026 4/7/2026 Groundwater Tap Volatile Organic Compounds (Method 8260)(ug/L) Acetone 20000 2.3 0.93 1.1 Acrylonitrile 0.5 < 3.7 < 3.7 < 3.7 Benzene 5 < 0.14 < 0.14 < 0.14 Bromodichloromethane 80 < 0.16 < 0.16 < 0.16 Bromoform 80 < 0.12 < 0.12 < 0.12 2-Butanone 6000 < 0.33 < 0.33 < 0.33 Carbon Disulfide 800 < 0.59 < 0.59 < 0.59 Carbon tetrachloride 5 < 0.14 < 0.14 < 0.14 Chlorobenzene 100 < 0.14 < 0.14 < 0.14 Chlorodibromomethane 80 < 0.13 < 0.13 < 0.13 Chloroethane 8000 < 0.3 < 0.3 < 0.3 Chloroform 80 < 0.21 < 0.21 < 0.21 1,2-Dibromo-3-chloropropane 0.2 < 0.19 < 0.19 < 0.19 1,2-Dibromoethane 0.05 < 0.15 < 0.15 < 0.15 1,1-Dichloroethane 30 < 0.17 < 0.17 < 0.17 1,2-Dichloroethane 5 < 0.28 < 0.28 < 0.28 1,1-Dichloroethene 7 < 0.12 < 0.12 < 0.12 cis-1,2-Dichloroethene 70 < 0.14 < 0.14 < 0.14 trans-1,2-Dichloroethene 100 < 0.14 < 0.14 < 0.14 1,2-Dichloropropane 5 < 0.22 < 0.22 < 0.22 cis-1,3-Dichloropropene NPL < 0.13 < 0.13 < 0.13 trans-1,3-Dichloropropene NPL < 0.2 < 0.2 < 0.2 Ethylbenzene 700 < 0.15 < 0.15 < 0.15 2-Hexanone 40 < 0.47 < 0.47 < 0.47 Methyl bromide 8 < 0.83 < 0.83 < 0.83 Methyl chloride 200 < 0.94 < 0.94 < 0.94 Methyl-t-Butyl Ether 100 < 0.31 < 0.31 < 0.31 4-Methyl-2-pentanone 6000 < 0.38 < 0.38 < 0.38 Methylene chloride 5 < 0.41 < 0.41 < 0.41 1-Methylnaphthalene 0.06 < 0.63 < 0.63 < 0.63 2-Methylnaphthalene 40 < 0.63 < 0.63 < 0.63 Naphthalene 1.0 < 0.31 < 0.31 < 0.31 Styrene 100 < 0.11 < 0.11 < 0.11 1,1,1,2-Tetrachloroethane 6 < 0.11 < 0.11 < 0.11 1,1,2,2-Tetrachloroethane 0.8 < 0.31 < 0.31 < 0.31 Tetrachloroethene 5 0.21 0.23 0.51 Toluene 1000 0.18 0.25 0.21 1,1,1-Trichloroethane 200 < 0.12 < 0.12 < 0.12 1,1,2-Trichloroethane 5 < 0.24 < 0.24 < 0.24 Trichloroethene 5 < 0.15 < 0.15 < 0.15 Trichlorofluoromethane 5000 < 0.15 < 0.15 < 0.15 1,2,4-Trimethylbenzene 60 < 0.34 < 0.34 < 0.34 1,3,5-Trimethylbenzene 60 < 0.29 < 0.29 < 0.29 Vinyl Acetate 400 < 0.32 < 0.32 < 0.32 Vinyl chloride 2 < 0.29 < 0.29 < 0.29 m,p-Xylene NPL < 0.3 < 0.3 < 0.3 o-Xylene NPL < 0.12 < 0.12 < 0.12 Total Xylenes 10000 < 0.42 < 0.42 < 0.42 Notes: Published levels as established by the Indiana Department of Environmental Management Risk-based Closure Guide (R2), Table 1 ug/L - micrograms per liter Bold results are above the laboratory method detection limit NPL - No published level Soil Boring Groundwater Samples Groundwater Analytical Results Summary Tables Page 1 of 1 APPENDIX D LABORATORY ANALTYICAL REPORTS Project Description C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland 26-0526 - S. Main For: Heron Environmental, LLC James Bennett 55804 Ash Road Osceola, IN 46561 Senior Project Manager Kristen Ramirez Wednesday, April 15, 2026 Microbac Laboratories, Inc. 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Please find enclosed the analytical results for the samples you submitted to Microbac Laboratories. Review and compilation of your report was completed by Microbac Laboratories, Inc. - Chicagoland. If you have any questions, comments, or require further assistance regarding this report, please contact your service representative listed above. I certify that all test results meet all of the requirements of the accrediting authority listed within this report. Analytical results are reported on a ’as received’ basis unless specified otherwise. Analytical results for solids with units ending in (dry) are reported on a dry weight basis. A statement of uncertainty for each analysis is available upon request . This laboratory report shall not be reproduced, except in full, without the written approval of Microbac Laboratories. The reported results are related only to the samples analyzed as received. Page 1 of 58 Osceola, IN 46561 Project / PO Number: N/A Received: Heron Environmental, LLC 55804 Ash Road James Bennett Reported: Project Name: 26-0526 - S. Main C6D0475 04/08/2026 04/15/2026 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Case Narrative [TOC_1]Case Narrative[TOC] Due to repeated poor purge, VOAs cannot be reported from the sample submitted in the vials for the following sample. Results are reported from sample taken from the jar. Laboratory ID Sample Name C6D0475-05 B-5 (1-2) Sample Summary Report [TOC_1]Sample Summary[TOC] Sample Name Sample Type Sample BeginClient MatrixLaboratory ID Sample Taken Lab Received C6D0475-01 04/07/26 08:45 04/08/26 10:08SolidB-1 (1-2) C6D0475-02 04/07/26 09:00 04/08/26 10:08SolidB-2 (1-2) C6D0475-03 04/07/26 09:25 04/08/26 10:08SolidB-3 (1-2) C6D0475-04 04/07/26 10:10 04/08/26 10:08SolidB-4 (1-2) C6D0475-05 04/07/26 10:30 04/08/26 10:08SolidB-5 (1-2) C6D0475-06 04/07/26 10:45 04/08/26 10:08SolidB-6 (1-2) C6D0475-07 04/07/26 11:20 04/08/26 10:08SolidB-7 (1-2) C6D0475-08 04/07/26 11:35 04/08/26 10:08SolidB-8 (1-2) C6D0475-09 04/07/26 12:00 04/08/26 10:08SolidB-9 (5-7) C6D0475-10 04/07/26 10:00 04/08/26 10:08AqueousB-3 (GW) C6D0475-11 04/07/26 11:15 04/08/26 10:08AqueousB-6 (GW) C6D0475-12 04/07/26 12:35 04/08/26 10:08AqueousB-9 (GW) Page 2 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Analytical Testing Parameters C6D0475-01 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-01[TOC] 04/07/2026 8:45 B-1 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/09/26 115693.5 04/08/26 1514Percent Solids JBS2% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04280.007130.0132 Jmg/Kg dry 04/09/26 0530 MCW04/09/26 13451 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5190.3401.37 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 19281 Barium 0.2080.085236.2 mg/Kg dry 04/09/26 0247 MCW04/09/26 19281 Cadmium 0.2080.0135<0.0135 mg/Kg dry 04/09/26 0247 MCW04/09/26 19281 Chromium 0.2080.07279.89 mg/Kg dry 04/09/26 0247 MCW04/10/26 17391 Lead 0.3890.21310.8 mg/Kg dry 04/09/26 0247 MCW04/10/26 17391 Selenium 1.560.332<0.332 mg/Kg dry 04/09/26 0247 MCW04/09/26 19281 Silver 0.5190.0571<0.0571 mg/Kg dry 04/09/26 0247 MCW04/10/26 17391 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0510.00450.0048 Q, Jmg/Kg dry CNL04/12/26 20281 Acrylonitrile 0.100.027<0.027 Qmg/Kg dry CNL04/12/26 20281 Benzene 0.00510.00087<0.00087 mg/Kg dry CNL04/12/26 20281 Bromodichloromethane 0.00510.00086<0.00086 mg/Kg dry CNL04/12/26 20281 Bromoform 0.00510.0016<0.0016 mg/Kg dry CNL04/12/26 20281 2-Butanone 0.0100.0012<0.0012 mg/Kg dry CNL04/12/26 20281 Carbon Disulfide 0.0100.0011<0.0011 mg/Kg dry CNL04/12/26 20281 Carbon tetrachloride 0.00510.0011<0.0011 mg/Kg dry CNL04/12/26 20281 Chlorobenzene 0.00510.00055<0.00055 mg/Kg dry CNL04/12/26 20281 Chlorodibromomethane 0.00510.0010<0.0010 mg/Kg dry CNL04/12/26 20281 Chloroethane 0.0100.0019<0.0019 mg/Kg dry CNL04/12/26 20281 Chloroform 0.00510.00063<0.00063 mg/Kg dry CNL04/12/26 20281 1,2-Dibromo-3-chloropropane 0.00510.0021<0.0021 mg/Kg dry CNL04/12/26 20281 1,2-Dibromoethane 0.00510.0014<0.0014 mg/Kg dry CNL04/12/26 20281 1,1-Dichloroethane 0.00510.0011<0.0011 mg/Kg dry CNL04/12/26 20281 1,2-Dichloroethane 0.00510.0016<0.0016 mg/Kg dry CNL04/12/26 20281 1,1-Dichloroethene 0.00510.0012<0.0012 Qmg/Kg dry CNL04/12/26 20281 cis-1,2-Dichloroethylene 0.00510.00073<0.00073 mg/Kg dry CNL04/12/26 20281 trans-1,2-Dichloroethylene 0.00510.0010<0.0010 mg/Kg dry CNL04/12/26 20281 cis & trans-1,2-Dichloroethylene 0.00510.0016<0.0016 mg/Kg dry CNL04/12/26 20281 1,2-Dichloropropane 0.00510.0012<0.0012 mg/Kg dry CNL04/12/26 20281 cis-1,3-Dichloropropylene 0.00510.00053<0.00053 mg/Kg dry CNL04/12/26 20281 trans-1,3-Dichloropropylene 0.00510.0012<0.0012 mg/Kg dry CNL04/12/26 20281 [TOC_1]Analytical Sample Results[TOC] 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 3 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-01 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-01[TOC] 04/07/2026 8:45 B-1 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Ethylbenzene 0.00510.00094<0.00094 mg/Kg dry CNL04/12/26 20281 2-Hexanone 0.00510.0023<0.0023 mg/Kg dry CNL04/12/26 20281 Methyl bromide 0.0100.0015<0.0015 mg/Kg dry CNL04/12/26 20281 Methyl chloride 0.0100.0012<0.0012 mg/Kg dry CNL04/12/26 20281 Methyl tert-butyl ether 0.00510.0018<0.0018 mg/Kg dry CNL04/12/26 20281 4-Methyl-2-pentanone 0.00510.0021<0.0021 mg/Kg dry CNL04/12/26 20281 Methylene chloride 0.0200.00210.0087 Jmg/Kg dry CNL04/12/26 20281 1-Methylnaphthalene 0.0100.010<0.010 mg/Kg dry CNL04/12/26 20281 2-Methylnaphthalene 0.0100.00055<0.00055 mg/Kg dry CNL04/12/26 20281 Naphthalene 0.0100.0021<0.0021 mg/Kg dry CNL04/12/26 20281 Styrene 0.00510.00077<0.00077 mg/Kg dry CNL04/12/26 20281 1,1,1,2-Tetrachloroethane 0.0100.00083<0.00083 mg/Kg dry CNL04/12/26 20281 1,1,2,2-Tetrachloroethane 0.00510.0014<0.0014 mg/Kg dry CNL04/12/26 20281 Tetrachloroethylene 0.00510.0012<0.0012 Qmg/Kg dry CNL04/12/26 20281 Toluene 0.00510.000800.0013 Jmg/Kg dry CNL04/12/26 20281 1,1,1-Trichloroethane 0.00510.0011<0.0011 mg/Kg dry CNL04/12/26 20281 1,1,2-Trichloroethane 0.00510.0013<0.0013 mg/Kg dry CNL04/12/26 20281 Trichloroethene 0.00510.0014<0.0014 mg/Kg dry CNL04/12/26 20281 Trichlorofluoromethane 0.0100.0012<0.0012 mg/Kg dry CNL04/12/26 20281 1,2,4-Trimethylbenzene 0.00510.000740.0013 Jmg/Kg dry CNL04/12/26 20281 1,3,5-Trimethylbenzene 0.00510.00086<0.00086 mg/Kg dry CNL04/12/26 20281 Vinyl Acetate 0.0100.0021<0.0021 Qmg/Kg dry CNL04/12/26 20281 Vinyl chloride 0.0100.0013<0.0013 mg/Kg dry CNL04/12/26 20281 m&p-xylene 0.00510.0018<0.0018 mg/Kg dry CNL04/12/26 20281 o-Xylene 0.00510.00092<0.00092 mg/Kg dry CNL04/12/26 20281 Xylenes (total)0.00510.0026<0.0026 mg/Kg dry CNL04/12/26 20281 91.5 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/12/26 2028 97.5 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/12/26 2028 92.0 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/12/26 2028 100 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/12/26 2028 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0700.043<0.043 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Acenaphthylene 0.0700.045<0.045 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Anthracene 0.0700.031<0.031 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Benzo(a)anthracene 0.0700.024<0.024 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Benzo(a)pyrene 0.0700.025<0.025 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Benzo(b)fluoranthene 0.0700.029<0.029 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Benzo(g,h,i)perylene 0.0700.023<0.023 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Benzo(k)fluoranthene 0.0700.061<0.061 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Chrysene 0.0700.026<0.026 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Dibenz(a,h)anthracene 0.0700.034<0.034 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 4 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-01 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-01[TOC] 04/07/2026 8:45 B-1 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Fluoranthene 0.0700.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Fluorene 0.0700.038<0.038 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Indeno(1,2,3-cd) pyrene 0.0700.020<0.020 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Naphthalene 0.0700.047<0.047 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Phenanthrene 0.0700.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 Pyrene 0.0700.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 1-Methylnaphthalene 0.0700.070<0.070 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 2-Methylnaphthalene 0.0700.049<0.049 mg/Kg dry 04/09/26 0944 JBS04/10/26 12351 63.3 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1235 65.8 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1235 70.7 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1235 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 5 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-02 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-02[TOC] 04/07/2026 9:00 B-2 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/09/26 115691.0 04/08/26 1514Percent Solids JBS2% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04130.006890.0176 Jmg/Kg dry 04/09/26 0530 MCW04/09/26 13461 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5090.3332.88 mg/Kg dry 04/09/26 0247 MCW04/09/26 19331 Barium 0.2030.083434.5 mg/Kg dry 04/09/26 0247 MCW04/09/26 19331 Cadmium 0.2030.0132<0.0132 mg/Kg dry 04/09/26 0247 MCW04/09/26 19331 Chromium 0.2030.07129.63 mg/Kg dry 04/09/26 0247 MCW04/10/26 17441 Lead 0.3820.20945.0 mg/Kg dry 04/09/26 0247 MCW04/10/26 17441 Selenium 1.530.326<0.326 mg/Kg dry 04/09/26 0247 MCW04/09/26 19331 Silver 0.5090.0560<0.0560 mg/Kg dry 04/09/26 0247 MCW04/10/26 17441 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0560.0049<0.0049 Qmg/Kg dry CNL04/12/26 20521 Acrylonitrile 0.110.030<0.030 Qmg/Kg dry CNL04/12/26 20521 Benzene 0.00560.00096<0.00096 mg/Kg dry CNL04/12/26 20521 Bromodichloromethane 0.00560.00095<0.00095 mg/Kg dry CNL04/12/26 20521 Bromoform 0.00560.0018<0.0018 mg/Kg dry CNL04/12/26 20521 2-Butanone 0.0110.0013<0.0013 mg/Kg dry CNL04/12/26 20521 Carbon Disulfide 0.0110.0012<0.0012 mg/Kg dry CNL04/12/26 20521 Carbon tetrachloride 0.00560.0012<0.0012 mg/Kg dry CNL04/12/26 20521 Chlorobenzene 0.00560.00061<0.00061 mg/Kg dry CNL04/12/26 20521 Chlorodibromomethane 0.00560.0011<0.0011 mg/Kg dry CNL04/12/26 20521 Chloroethane 0.0110.0021<0.0021 mg/Kg dry CNL04/12/26 20521 Chloroform 0.00560.00070<0.00070 mg/Kg dry CNL04/12/26 20521 1,2-Dibromo-3-chloropropane 0.00560.0023<0.0023 mg/Kg dry CNL04/12/26 20521 1,2-Dibromoethane 0.00560.0016<0.0016 mg/Kg dry CNL04/12/26 20521 1,1-Dichloroethane 0.00560.0012<0.0012 mg/Kg dry CNL04/12/26 20521 1,2-Dichloroethane 0.00560.0017<0.0017 mg/Kg dry CNL04/12/26 20521 1,1-Dichloroethene 0.00560.0014<0.0014 Qmg/Kg dry CNL04/12/26 20521 cis-1,2-Dichloroethylene 0.00560.00080<0.00080 mg/Kg dry CNL04/12/26 20521 trans-1,2-Dichloroethylene 0.00560.0011<0.0011 mg/Kg dry CNL04/12/26 20521 cis & trans-1,2-Dichloroethylene 0.00560.0017<0.0017 mg/Kg dry CNL04/12/26 20521 1,2-Dichloropropane 0.00560.0013<0.0013 mg/Kg dry CNL04/12/26 20521 cis-1,3-Dichloropropylene 0.00560.00059<0.00059 mg/Kg dry CNL04/12/26 20521 trans-1,3-Dichloropropylene 0.00560.0013<0.0013 mg/Kg dry CNL04/12/26 20521 Ethylbenzene 0.00560.0010<0.0010 mg/Kg dry CNL04/12/26 20521 2-Hexanone 0.00560.0025<0.0025 mg/Kg dry CNL04/12/26 20521 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 6 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-02 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-02[TOC] 04/07/2026 9:00 B-2 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.0110.0017<0.0017 mg/Kg dry CNL04/12/26 20521 Methyl chloride 0.0110.0013<0.0013 mg/Kg dry CNL04/12/26 20521 Methyl tert-butyl ether 0.00560.0020<0.0020 mg/Kg dry CNL04/12/26 20521 4-Methyl-2-pentanone 0.00560.0024<0.0024 mg/Kg dry CNL04/12/26 20521 Methylene chloride 0.0230.00230.0088 Jmg/Kg dry CNL04/12/26 20521 1-Methylnaphthalene 0.0110.011<0.011 mg/Kg dry CNL04/12/26 20521 2-Methylnaphthalene 0.0110.000610.0016 Jmg/Kg dry CNL04/12/26 20521 Naphthalene 0.0110.00230.0071 Jmg/Kg dry CNL04/12/26 20521 Styrene 0.00560.00084<0.00084 mg/Kg dry CNL04/12/26 20521 1,1,1,2-Tetrachloroethane 0.0110.00091<0.00091 mg/Kg dry CNL04/12/26 20521 1,1,2,2-Tetrachloroethane 0.00560.0015<0.0015 mg/Kg dry CNL04/12/26 20521 Tetrachloroethylene 0.00560.0013<0.0013 Qmg/Kg dry CNL04/12/26 20521 Toluene 0.00560.000880.0012 Jmg/Kg dry CNL04/12/26 20521 1,1,1-Trichloroethane 0.00560.0012<0.0012 mg/Kg dry CNL04/12/26 20521 1,1,2-Trichloroethane 0.00560.0014<0.0014 mg/Kg dry CNL04/12/26 20521 Trichloroethene 0.00560.0015<0.0015 mg/Kg dry CNL04/12/26 20521 Trichlorofluoromethane 0.0110.0013<0.0013 mg/Kg dry CNL04/12/26 20521 1,2,4-Trimethylbenzene 0.00560.00081<0.00081 mg/Kg dry CNL04/12/26 20521 1,3,5-Trimethylbenzene 0.00560.00095<0.00095 mg/Kg dry CNL04/12/26 20521 Vinyl Acetate 0.0110.0024<0.0024 Qmg/Kg dry CNL04/12/26 20521 Vinyl chloride 0.0110.0014<0.0014 mg/Kg dry CNL04/12/26 20521 m&p-xylene 0.00560.0020<0.0020 mg/Kg dry CNL04/12/26 20521 o-Xylene 0.00560.0010<0.0010 mg/Kg dry CNL04/12/26 20521 Xylenes (total)0.00560.0028<0.0028 mg/Kg dry CNL04/12/26 20521 88.6 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/12/26 2052 97.1 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/12/26 2052 94.2 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/12/26 2052 99.1 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/12/26 2052 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0720.044<0.044 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Acenaphthylene 0.0720.046<0.046 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Anthracene 0.0720.0320.035 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Benzo(a)anthracene 0.0720.0250.074 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Benzo(a)pyrene 0.0720.0250.070 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Benzo(b)fluoranthene 0.0720.0300.085 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Benzo(g,h,i)perylene 0.0720.0240.031 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Benzo(k)fluoranthene 0.0720.062<0.062 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Chrysene 0.0720.0270.063 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Dibenz(a,h)anthracene 0.0720.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Fluoranthene 0.0720.0290.17 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Fluorene 0.0720.039<0.039 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 7 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-02 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-02[TOC] 04/07/2026 9:00 B-2 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0720.0210.027 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Naphthalene 0.0720.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Phenanthrene 0.0720.0290.15 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 Pyrene 0.0720.0280.11 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 1-Methylnaphthalene 0.0720.072<0.072 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 2-Methylnaphthalene 0.0720.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 12581 66.0 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1258 69.9 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1258 70.7 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1258 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 8 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-03 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-03[TOC] 04/07/2026 9:25 B-3 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105192.9 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04050.006750.0128 Jmg/Kg dry 04/09/26 0530 MCW04/09/26 13481 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.4980.3261.62 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 19371 Barium 0.1990.081730.0 mg/Kg dry 04/09/26 0247 MCW04/09/26 19371 Cadmium 0.1990.0130<0.0130 mg/Kg dry 04/09/26 0247 MCW04/09/26 19371 Chromium 0.1990.069710.3 mg/Kg dry 04/09/26 0247 MCW04/10/26 17491 Lead 0.3740.2046.35 mg/Kg dry 04/09/26 0247 MCW04/10/26 17491 Selenium 1.490.319<0.319 mg/Kg dry 04/09/26 0247 MCW04/09/26 19371 Silver 0.4980.0548<0.0548 mg/Kg dry 04/09/26 0247 MCW04/10/26 17491 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0530.0047<0.0047 Qmg/Kg dry CNL04/13/26 14071 Acrylonitrile 0.110.028<0.028 mg/Kg dry CNL04/13/26 14071 Benzene 0.00530.00090<0.00090 mg/Kg dry CNL04/13/26 14071 Bromodichloromethane 0.00530.00089<0.00089 mg/Kg dry CNL04/13/26 14071 Bromoform 0.00530.0017<0.0017 mg/Kg dry CNL04/13/26 14071 2-Butanone 0.0110.0012<0.0012 mg/Kg dry CNL04/13/26 14071 Carbon Disulfide 0.0110.0011<0.0011 mg/Kg dry CNL04/13/26 14071 Carbon tetrachloride 0.00530.0011<0.0011 mg/Kg dry CNL04/13/26 14071 Chlorobenzene 0.00530.00057<0.00057 mg/Kg dry CNL04/13/26 14071 Chlorodibromomethane 0.00530.0011<0.0011 mg/Kg dry CNL04/13/26 14071 Chloroethane 0.0110.0020<0.0020 mg/Kg dry CNL04/13/26 14071 Chloroform 0.00530.00066<0.00066 mg/Kg dry CNL04/13/26 14071 1,2-Dibromo-3-chloropropane 0.00530.0022<0.0022 mg/Kg dry CNL04/13/26 14071 1,2-Dibromoethane 0.00530.0015<0.0015 mg/Kg dry CNL04/13/26 14071 1,1-Dichloroethane 0.00530.0012<0.0012 mg/Kg dry CNL04/13/26 14071 1,2-Dichloroethane 0.00530.0016<0.0016 mg/Kg dry CNL04/13/26 14071 1,1-Dichloroethene 0.00530.0013<0.0013 mg/Kg dry CNL04/13/26 14071 cis-1,2-Dichloroethylene 0.00530.00075<0.00075 mg/Kg dry CNL04/13/26 14071 trans-1,2-Dichloroethylene 0.00530.0010<0.0010 mg/Kg dry CNL04/13/26 14071 cis & trans-1,2-Dichloroethylene 0.00530.0016<0.0016 mg/Kg dry CNL04/13/26 14071 1,2-Dichloropropane 0.00530.0012<0.0012 mg/Kg dry CNL04/13/26 14071 cis-1,3-Dichloropropylene 0.00530.00055<0.00055 mg/Kg dry CNL04/13/26 14071 trans-1,3-Dichloropropylene 0.00530.0012<0.0012 mg/Kg dry CNL04/13/26 14071 Ethylbenzene 0.00530.00098<0.00098 mg/Kg dry CNL04/13/26 14071 2-Hexanone 0.00530.0024<0.0024 mg/Kg dry CNL04/13/26 14071 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 9 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-03 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-03[TOC] 04/07/2026 9:25 B-3 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.0110.0016<0.0016 mg/Kg dry CNL04/13/26 14071 Methyl chloride 0.0110.0012<0.0012 mg/Kg dry CNL04/13/26 14071 Methyl tert-butyl ether 0.00530.0019<0.0019 mg/Kg dry CNL04/13/26 14071 4-Methyl-2-pentanone 0.00530.0022<0.0022 mg/Kg dry CNL04/13/26 14071 Methylene chloride 0.0210.0021<0.0021 mg/Kg dry CNL04/13/26 14071 1-Methylnaphthalene 0.0110.011<0.011 mg/Kg dry CNL04/13/26 14071 2-Methylnaphthalene 0.0110.00057<0.00057 mg/Kg dry CNL04/13/26 14071 Naphthalene 0.0110.0022<0.0022 mg/Kg dry CNL04/13/26 14071 Styrene 0.00530.00080<0.00080 mg/Kg dry CNL04/13/26 14071 1,1,1,2-Tetrachloroethane 0.0110.00086<0.00086 mg/Kg dry CNL04/13/26 14071 1,1,2,2-Tetrachloroethane 0.00530.0014<0.0014 mg/Kg dry CNL04/13/26 14071 Tetrachloroethylene 0.00530.0013<0.0013 mg/Kg dry CNL04/13/26 14071 Toluene 0.00530.000830.0010 Jmg/Kg dry CNL04/13/26 14071 1,1,1-Trichloroethane 0.00530.0012<0.0012 mg/Kg dry CNL04/13/26 14071 1,1,2-Trichloroethane 0.00530.0013<0.0013 mg/Kg dry CNL04/13/26 14071 Trichloroethene 0.00530.0014<0.0014 mg/Kg dry CNL04/13/26 14071 Trichlorofluoromethane 0.0110.0013<0.0013 mg/Kg dry CNL04/13/26 14071 1,2,4-Trimethylbenzene 0.00530.00077<0.00077 mg/Kg dry CNL04/13/26 14071 1,3,5-Trimethylbenzene 0.00530.00089<0.00089 mg/Kg dry CNL04/13/26 14071 Vinyl Acetate 0.0110.0022<0.0022 mg/Kg dry CNL04/13/26 14071 Vinyl chloride 0.0110.0014<0.0014 mg/Kg dry CNL04/13/26 14071 m&p-xylene 0.00530.0019<0.0019 mg/Kg dry CNL04/13/26 14071 o-Xylene 0.00530.00096<0.00096 mg/Kg dry CNL04/13/26 14071 Xylenes (total)0.00530.0027<0.0027 mg/Kg dry CNL04/13/26 14071 89.2 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1407 97.9 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1407 102 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1407 98.5 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1407 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0710.043<0.043 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Acenaphthylene 0.0710.045<0.045 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Anthracene 0.0710.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Benzo(a)anthracene 0.0710.024<0.024 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Benzo(a)pyrene 0.0710.025<0.025 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Benzo(b)fluoranthene 0.0710.029<0.029 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Benzo(g,h,i)perylene 0.0710.023<0.023 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Benzo(k)fluoranthene 0.0710.061<0.061 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Chrysene 0.0710.027<0.027 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Dibenz(a,h)anthracene 0.0710.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Fluoranthene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Fluorene 0.0710.038<0.038 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 10 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-03 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-03[TOC] 04/07/2026 9:25 B-3 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0710.020<0.020 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Naphthalene 0.0710.047<0.047 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Phenanthrene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 Pyrene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 1-Methylnaphthalene 0.0710.071<0.071 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 2-Methylnaphthalene 0.0710.049<0.049 mg/Kg dry 04/09/26 0944 JBS04/10/26 13221 59.2 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1322 59.6 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1322 82.1 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1322 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 11 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-04 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-04[TOC] 04/07/2026 10:10 B-4 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105192.3 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04330.007220.0129 Jmg/Kg dry 04/09/26 0530 MCW04/09/26 13511 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5210.3401.85 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 19421 Barium 0.2080.085439.1 mg/Kg dry 04/09/26 0247 MCW04/09/26 19421 Cadmium 0.2080.0135<0.0135 mg/Kg dry 04/09/26 0247 MCW04/09/26 19421 Chromium 0.2080.072911.9 mg/Kg dry 04/09/26 0247 MCW04/10/26 17541 Lead 0.3900.21311.0 mg/Kg dry 04/09/26 0247 MCW04/10/26 17541 Selenium 1.560.333<0.333 mg/Kg dry 04/09/26 0247 MCW04/09/26 19421 Silver 0.5210.0573<0.0573 mg/Kg dry 04/09/26 0247 MCW04/10/26 17541 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0490.00430.0045 Q, Jmg/Kg dry CNL04/13/26 14311 Acrylonitrile 0.0980.026<0.026 mg/Kg dry CNL04/13/26 14311 Benzene 0.00490.00083<0.00083 mg/Kg dry CNL04/13/26 14311 Bromodichloromethane 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 14311 Bromoform 0.00490.0016<0.0016 mg/Kg dry CNL04/13/26 14311 2-Butanone 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 14311 Carbon Disulfide 0.00980.0010<0.0010 mg/Kg dry CNL04/13/26 14311 Carbon tetrachloride 0.00490.0010<0.0010 mg/Kg dry CNL04/13/26 14311 Chlorobenzene 0.00490.00053<0.00053 mg/Kg dry CNL04/13/26 14311 Chlorodibromomethane 0.00490.00098<0.00098 mg/Kg dry CNL04/13/26 14311 Chloroethane 0.00980.0018<0.0018 mg/Kg dry CNL04/13/26 14311 Chloroform 0.00490.00060<0.00060 mg/Kg dry CNL04/13/26 14311 1,2-Dibromo-3-chloropropane 0.00490.0020<0.0020 mg/Kg dry CNL04/13/26 14311 1,2-Dibromoethane 0.00490.0014<0.0014 mg/Kg dry CNL04/13/26 14311 1,1-Dichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 14311 1,2-Dichloroethane 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 14311 1,1-Dichloroethene 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 14311 cis-1,2-Dichloroethylene 0.00490.00069<0.00069 mg/Kg dry CNL04/13/26 14311 trans-1,2-Dichloroethylene 0.00490.00096<0.00096 mg/Kg dry CNL04/13/26 14311 cis & trans-1,2-Dichloroethylene 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 14311 1,2-Dichloropropane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 14311 cis-1,3-Dichloropropylene 0.00490.00051<0.00051 mg/Kg dry CNL04/13/26 14311 trans-1,3-Dichloropropylene 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 14311 Ethylbenzene 0.00490.00090<0.00090 mg/Kg dry CNL04/13/26 14311 2-Hexanone 0.00490.0022<0.0022 mg/Kg dry CNL04/13/26 14311 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 12 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-04 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-04[TOC] 04/07/2026 10:10 B-4 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.00980.00150.0017 Jmg/Kg dry CNL04/13/26 14311 Methyl chloride 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 14311 Methyl tert-butyl ether 0.00490.0018<0.0018 mg/Kg dry CNL04/13/26 14311 4-Methyl-2-pentanone 0.00490.0020<0.0020 mg/Kg dry CNL04/13/26 14311 Methylene chloride 0.0200.00200.0023 Jmg/Kg dry CNL04/13/26 14311 1-Methylnaphthalene 0.00980.0098<0.0098 mg/Kg dry CNL04/13/26 14311 2-Methylnaphthalene 0.00980.00053<0.00053 mg/Kg dry CNL04/13/26 14311 Naphthalene 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 14311 Styrene 0.00490.00073<0.00073 mg/Kg dry CNL04/13/26 14311 1,1,1,2-Tetrachloroethane 0.00980.00079<0.00079 mg/Kg dry CNL04/13/26 14311 1,1,2,2-Tetrachloroethane 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 14311 Tetrachloroethylene 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 14311 Toluene 0.00490.000760.00089 Jmg/Kg dry CNL04/13/26 14311 1,1,1-Trichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 14311 1,1,2-Trichloroethane 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 14311 Trichloroethene 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 14311 Trichlorofluoromethane 0.00980.0012<0.0012 mg/Kg dry CNL04/13/26 14311 1,2,4-Trimethylbenzene 0.00490.00070<0.00070 mg/Kg dry CNL04/13/26 14311 1,3,5-Trimethylbenzene 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 14311 Vinyl Acetate 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 14311 Vinyl chloride 0.00980.0012<0.0012 mg/Kg dry CNL04/13/26 14311 m&p-xylene 0.00490.0017<0.0017 mg/Kg dry CNL04/13/26 14311 o-Xylene 0.00490.00088<0.00088 mg/Kg dry CNL04/13/26 14311 Xylenes (total)0.00490.0025<0.0025 mg/Kg dry CNL04/13/26 14311 88.5 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1431 97.4 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1431 99.3 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1431 101 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1431 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0710.043<0.043 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Acenaphthylene 0.0710.046<0.046 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Anthracene 0.0710.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Benzo(a)anthracene 0.0710.024<0.024 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Benzo(a)pyrene 0.0710.025<0.025 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Benzo(b)fluoranthene 0.0710.029<0.029 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Benzo(g,h,i)perylene 0.0710.023<0.023 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Benzo(k)fluoranthene 0.0710.061<0.061 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Chrysene 0.0710.027<0.027 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Dibenz(a,h)anthracene 0.0710.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Fluoranthene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Fluorene 0.0710.038<0.038 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 13 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-04 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-04[TOC] 04/07/2026 10:10 B-4 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0710.021<0.021 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Naphthalene 0.0710.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Phenanthrene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 Pyrene 0.0710.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 1-Methylnaphthalene 0.0710.071<0.071 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 2-Methylnaphthalene 0.0710.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 13461 60.1 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1346 64.0 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1346 80.0 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1346 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 14 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-05 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-05[TOC] 04/07/2026 10:30 B-5 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105192.0 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04420.007360.0684 mg/Kg dry 04/09/26 0530 MCW04/09/26 13531 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5280.3451.68 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 19471 Barium 0.2110.086576.3 mg/Kg dry 04/09/26 0247 MCW04/09/26 19471 Cadmium 0.2110.01370.116 Jmg/Kg dry 04/09/26 0247 MCW04/09/26 19471 Chromium 0.2110.073910.1 mg/Kg dry 04/09/26 0247 MCW04/10/26 18131 Lead 0.3960.216143 mg/Kg dry 04/09/26 0247 MCW04/10/26 18131 Selenium 1.580.338<0.338 mg/Kg dry 04/09/26 0247 MCW04/09/26 19471 Silver 0.5280.0580<0.0580 mg/Kg dry 04/09/26 0247 MCW04/10/26 18131 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0540.00470.0070 Q, Jmg/Kg dry CNL04/13/26 16551 Acrylonitrile 0.110.029<0.029 mg/Kg dry CNL04/13/26 16551 Benzene 0.00540.00091<0.00091 mg/Kg dry CNL04/13/26 16551 Bromodichloromethane 0.00540.00090<0.00090 mg/Kg dry CNL04/13/26 16551 Bromoform 0.00540.0017<0.0017 mg/Kg dry CNL04/13/26 16551 2-Butanone 0.0110.0012<0.0012 mg/Kg dry CNL04/13/26 16551 Carbon Disulfide 0.0110.0011<0.0011 mg/Kg dry CNL04/13/26 16551 Carbon tetrachloride 0.00540.0011<0.0011 mg/Kg dry CNL04/13/26 16551 Chlorobenzene 0.00540.00058<0.00058 mg/Kg dry CNL04/13/26 16551 Chlorodibromomethane 0.00540.0011<0.0011 mg/Kg dry CNL04/13/26 16551 Chloroethane 0.0110.0020<0.0020 mg/Kg dry CNL04/13/26 16551 Chloroform 0.00540.00067<0.00067 mg/Kg dry CNL04/13/26 16551 1,2-Dibromo-3-chloropropane 0.00540.0022<0.0022 mg/Kg dry CNL04/13/26 16551 1,2-Dibromoethane 0.00540.0015<0.0015 mg/Kg dry CNL04/13/26 16551 1,1-Dichloroethane 0.00540.0012<0.0012 mg/Kg dry CNL04/13/26 16551 1,2-Dichloroethane 0.00540.0017<0.0017 mg/Kg dry CNL04/13/26 16551 1,1-Dichloroethene 0.00540.0013<0.0013 mg/Kg dry CNL04/13/26 16551 cis-1,2-Dichloroethylene 0.00540.00076<0.00076 mg/Kg dry CNL04/13/26 16551 trans-1,2-Dichloroethylene 0.00540.00110.024 mg/Kg dry CNL04/13/26 16551 cis & trans-1,2-Dichloroethylene 0.00540.00170.024 mg/Kg dry CNL04/13/26 16551 1,2-Dichloropropane 0.00540.0012<0.0012 mg/Kg dry CNL04/13/26 16551 cis-1,3-Dichloropropylene 0.00540.00056<0.00056 mg/Kg dry CNL04/13/26 16551 trans-1,3-Dichloropropylene 0.00540.0013<0.0013 mg/Kg dry CNL04/13/26 16551 Ethylbenzene 0.00540.000990.0018 Jmg/Kg dry CNL04/13/26 16551 2-Hexanone 0.00540.0024<0.0024 mg/Kg dry CNL04/13/26 16551 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 15 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-05 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-05[TOC] 04/07/2026 10:30 B-5 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.0110.0016<0.0016 mg/Kg dry CNL04/13/26 16551 Methyl chloride 0.0110.0012<0.0012 mg/Kg dry CNL04/13/26 16551 Methyl tert-butyl ether 0.00540.0019<0.0019 mg/Kg dry CNL04/13/26 16551 4-Methyl-2-pentanone 0.00540.0023<0.0023 mg/Kg dry CNL04/13/26 16551 Methylene chloride 0.0210.00220.012 Jmg/Kg dry CNL04/13/26 16551 1-Methylnaphthalene 0.0110.011<0.011 mg/Kg dry CNL04/13/26 16551 2-Methylnaphthalene 0.0110.00058<0.00058 mg/Kg dry CNL04/13/26 16551 Naphthalene 0.0110.0022<0.0022 mg/Kg dry CNL04/13/26 16551 Styrene 0.00540.00081<0.00081 mg/Kg dry CNL04/13/26 16551 1,1,1,2-Tetrachloroethane 0.0110.00087<0.00087 mg/Kg dry CNL04/13/26 16551 1,1,2,2-Tetrachloroethane 0.00540.0014<0.0014 mg/Kg dry CNL04/13/26 16551 Tetrachloroethylene 0.00540.0013<0.0013 mg/Kg dry CNL04/13/26 16551 Toluene 0.00540.000840.012 mg/Kg dry CNL04/13/26 16551 1,1,1-Trichloroethane 0.00540.0012<0.0012 mg/Kg dry CNL04/13/26 16551 1,1,2-Trichloroethane 0.00540.0014<0.0014 mg/Kg dry CNL04/13/26 16551 Trichloroethene 0.00540.0014<0.0014 mg/Kg dry CNL04/13/26 16551 Trichlorofluoromethane 0.0110.0013<0.0013 mg/Kg dry CNL04/13/26 16551 1,2,4-Trimethylbenzene 0.00540.000770.0023 Jmg/Kg dry CNL04/13/26 16551 1,3,5-Trimethylbenzene 0.00540.00090<0.00090 mg/Kg dry CNL04/13/26 16551 Vinyl Acetate 0.0110.0022<0.0022 mg/Kg dry CNL04/13/26 16551 Vinyl chloride 0.0110.0014<0.0014 mg/Kg dry CNL04/13/26 16551 m&p-xylene 0.00540.00190.0077 mg/Kg dry CNL04/13/26 16551 o-Xylene 0.00540.000970.0024 Jmg/Kg dry CNL04/13/26 16551 Xylenes (total)0.00540.00270.010 mg/Kg dry CNL04/13/26 16551 84.4 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1655 104 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1655 109 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1655 104 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1655 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0720.043<0.043 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Acenaphthylene 0.0720.046<0.046 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Anthracene 0.0720.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Benzo(a)anthracene 0.0720.0250.034 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Benzo(a)pyrene 0.0720.0250.034 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Benzo(b)fluoranthene 0.0720.0300.046 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Benzo(g,h,i)perylene 0.0720.0230.027 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Benzo(k)fluoranthene 0.0720.062<0.062 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Chrysene 0.0720.0270.033 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Dibenz(a,h)anthracene 0.0720.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Fluoranthene 0.0720.0280.054 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Fluorene 0.0720.038<0.038 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 16 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-05 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-05[TOC] 04/07/2026 10:30 B-5 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0720.021<0.021 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Naphthalene 0.0720.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Phenanthrene 0.0720.0280.033 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 Pyrene 0.0720.0280.044 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14101 1-Methylnaphthalene 0.0720.072<0.072 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 2-Methylnaphthalene 0.0720.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 14101 60.8 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1410 62.4 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1410 65.8 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1410 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 17 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-06 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-06[TOC] 04/07/2026 10:45 B-6 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105190.5 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04290.007140.118 mg/Kg dry 04/09/26 0530 MCW04/09/26 13541 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.4850.3172.79 mg/Kg dry 04/09/26 0247 MCW04/09/26 19521 Barium 0.1940.079582.7 mg/Kg dry 04/09/26 0247 MCW04/09/26 19521 Cadmium 0.1940.01260.136 Jmg/Kg dry 04/09/26 0247 MCW04/09/26 19521 Chromium 0.1940.06797.67 mg/Kg dry 04/09/26 0247 MCW04/10/26 18181 Lead 0.3640.19988.6 mg/Kg dry 04/09/26 0247 MCW04/10/26 18181 Selenium 1.450.310<0.310 mg/Kg dry 04/09/26 0247 MCW04/09/26 19521 Silver 0.4850.0533<0.0533 mg/Kg dry 04/09/26 0247 MCW04/10/26 18181 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0490.0043<0.0043 Qmg/Kg dry CNL04/13/26 15191 Acrylonitrile 0.0980.026<0.026 mg/Kg dry CNL04/13/26 15191 Benzene 0.00490.00083<0.00083 mg/Kg dry CNL04/13/26 15191 Bromodichloromethane 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 15191 Bromoform 0.00490.0016<0.0016 mg/Kg dry CNL04/13/26 15191 2-Butanone 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 15191 Carbon Disulfide 0.00980.0010<0.0010 mg/Kg dry CNL04/13/26 15191 Carbon tetrachloride 0.00490.0010<0.0010 mg/Kg dry CNL04/13/26 15191 Chlorobenzene 0.00490.00053<0.00053 mg/Kg dry CNL04/13/26 15191 Chlorodibromomethane 0.00490.00098<0.00098 mg/Kg dry CNL04/13/26 15191 Chloroethane 0.00980.0018<0.0018 mg/Kg dry CNL04/13/26 15191 Chloroform 0.00490.00061<0.00061 mg/Kg dry CNL04/13/26 15191 1,2-Dibromo-3-chloropropane 0.00490.0020<0.0020 mg/Kg dry CNL04/13/26 15191 1,2-Dibromoethane 0.00490.0014<0.0014 mg/Kg dry CNL04/13/26 15191 1,1-Dichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 15191 1,2-Dichloroethane 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 15191 1,1-Dichloroethene 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 15191 cis-1,2-Dichloroethylene 0.00490.00069<0.00069 mg/Kg dry CNL04/13/26 15191 trans-1,2-Dichloroethylene 0.00490.00096<0.00096 mg/Kg dry CNL04/13/26 15191 cis & trans-1,2-Dichloroethylene 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 15191 1,2-Dichloropropane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 15191 cis-1,3-Dichloropropylene 0.00490.00051<0.00051 mg/Kg dry CNL04/13/26 15191 trans-1,3-Dichloropropylene 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 15191 Ethylbenzene 0.00490.00090<0.00090 mg/Kg dry CNL04/13/26 15191 2-Hexanone 0.00490.0022<0.0022 mg/Kg dry CNL04/13/26 15191 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 18 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-06 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-06[TOC] 04/07/2026 10:45 B-6 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.00980.0015<0.0015 mg/Kg dry CNL04/13/26 15191 Methyl chloride 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 15191 Methyl tert-butyl ether 0.00490.0018<0.0018 mg/Kg dry CNL04/13/26 15191 4-Methyl-2-pentanone 0.00490.0021<0.0021 mg/Kg dry CNL04/13/26 15191 Methylene chloride 0.0200.00200.0024 Jmg/Kg dry CNL04/13/26 15191 1-Methylnaphthalene 0.00980.0098<0.0098 mg/Kg dry CNL04/13/26 15191 2-Methylnaphthalene 0.00980.00053<0.00053 mg/Kg dry CNL04/13/26 15191 Naphthalene 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 15191 Styrene 0.00490.00073<0.00073 mg/Kg dry CNL04/13/26 15191 1,1,1,2-Tetrachloroethane 0.00980.00079<0.00079 mg/Kg dry CNL04/13/26 15191 1,1,2,2-Tetrachloroethane 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 15191 Tetrachloroethylene 0.00490.00120.0015 Jmg/Kg dry CNL04/13/26 15191 Toluene 0.00490.00076<0.00076 mg/Kg dry CNL04/13/26 15191 1,1,1-Trichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 15191 1,1,2-Trichloroethane 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 15191 Trichloroethene 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 15191 Trichlorofluoromethane 0.00980.0012<0.0012 mg/Kg dry CNL04/13/26 15191 1,2,4-Trimethylbenzene 0.00490.00070<0.00070 mg/Kg dry CNL04/13/26 15191 1,3,5-Trimethylbenzene 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 15191 Vinyl Acetate 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 15191 Vinyl chloride 0.00980.0013<0.0013 mg/Kg dry CNL04/13/26 15191 m&p-xylene 0.00490.0017<0.0017 mg/Kg dry CNL04/13/26 15191 o-Xylene 0.00490.00088<0.00088 mg/Kg dry CNL04/13/26 15191 Xylenes (total)0.00490.0025<0.0025 mg/Kg dry CNL04/13/26 15191 80.9 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1519 103 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1519 103 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1519 106 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1519 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0720.044<0.044 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Acenaphthylene 0.0720.046<0.046 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Anthracene 0.0720.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Benzo(a)anthracene 0.0720.0250.043 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Benzo(a)pyrene 0.0720.0250.043 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Benzo(b)fluoranthene 0.0720.0300.056 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Benzo(g,h,i)perylene 0.0720.024<0.024 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Benzo(k)fluoranthene 0.0720.062<0.062 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Chrysene 0.0720.0270.042 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Dibenz(a,h)anthracene 0.0720.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Fluoranthene 0.0720.0290.085 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Fluorene 0.0720.039<0.039 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 19 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-06 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-06[TOC] 04/07/2026 10:45 B-6 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0720.021<0.021 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Naphthalene 0.0720.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Phenanthrene 0.0720.0290.047 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 Pyrene 0.0720.0280.061 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14341 1-Methylnaphthalene 0.0720.072<0.072 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 2-Methylnaphthalene 0.0720.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 14341 68.6 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1434 74.6 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1434 75.1 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1434 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 20 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-07 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-07[TOC] 04/07/2026 11:20 B-7 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105190.0 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04310.007180.0150 Jmg/Kg dry 04/09/26 0530 MCW04/09/26 13551 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5340.3491.89 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 19561 Barium 0.2140.087639.4 mg/Kg dry 04/09/26 0247 MCW04/09/26 19561 Cadmium 0.2140.0139<0.0139 mg/Kg dry 04/09/26 0247 MCW04/09/26 19561 Chromium 0.2140.07487.35 mg/Kg dry 04/09/26 0247 MCW04/10/26 18271 Lead 0.4010.21919.1 mg/Kg dry 04/09/26 0247 MCW04/10/26 18271 Selenium 1.600.342<0.342 mg/Kg dry 04/09/26 0247 MCW04/09/26 19561 Silver 0.5340.0587<0.0587 mg/Kg dry 04/09/26 0247 MCW04/10/26 18271 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0470.0041<0.0041 Qmg/Kg dry CNL04/13/26 15431 Acrylonitrile 0.0930.025<0.025 mg/Kg dry CNL04/13/26 15431 Benzene 0.00470.00079<0.00079 mg/Kg dry CNL04/13/26 15431 Bromodichloromethane 0.00470.00079<0.00079 mg/Kg dry CNL04/13/26 15431 Bromoform 0.00470.0015<0.0015 mg/Kg dry CNL04/13/26 15431 2-Butanone 0.00930.0011<0.0011 mg/Kg dry CNL04/13/26 15431 Carbon Disulfide 0.00930.00096<0.00096 mg/Kg dry CNL04/13/26 15431 Carbon tetrachloride 0.00470.00099<0.00099 mg/Kg dry CNL04/13/26 15431 Chlorobenzene 0.00470.00050<0.00050 mg/Kg dry CNL04/13/26 15431 Chlorodibromomethane 0.00470.00093<0.00093 mg/Kg dry CNL04/13/26 15431 Chloroethane 0.00930.0018<0.0018 mg/Kg dry CNL04/13/26 15431 Chloroform 0.00470.00058<0.00058 mg/Kg dry CNL04/13/26 15431 1,2-Dibromo-3-chloropropane 0.00470.0019<0.0019 mg/Kg dry CNL04/13/26 15431 1,2-Dibromoethane 0.00470.0013<0.0013 mg/Kg dry CNL04/13/26 15431 1,1-Dichloroethane 0.00470.0010<0.0010 mg/Kg dry CNL04/13/26 15431 1,2-Dichloroethane 0.00470.0014<0.0014 mg/Kg dry CNL04/13/26 15431 1,1-Dichloroethene 0.00470.0011<0.0011 mg/Kg dry CNL04/13/26 15431 cis-1,2-Dichloroethylene 0.00470.00066<0.00066 mg/Kg dry CNL04/13/26 15431 trans-1,2-Dichloroethylene 0.00470.00092<0.00092 mg/Kg dry CNL04/13/26 15431 cis & trans-1,2-Dichloroethylene 0.00470.0014<0.0014 mg/Kg dry CNL04/13/26 15431 1,2-Dichloropropane 0.00470.0011<0.0011 mg/Kg dry CNL04/13/26 15431 cis-1,3-Dichloropropylene 0.00470.00049<0.00049 mg/Kg dry CNL04/13/26 15431 trans-1,3-Dichloropropylene 0.00470.0011<0.0011 mg/Kg dry CNL04/13/26 15431 Ethylbenzene 0.00470.00086<0.00086 mg/Kg dry CNL04/13/26 15431 2-Hexanone 0.00470.0021<0.0021 mg/Kg dry CNL04/13/26 15431 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 21 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-07 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-07[TOC] 04/07/2026 11:20 B-7 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.00930.0014<0.0014 mg/Kg dry CNL04/13/26 15431 Methyl chloride 0.00930.0011<0.0011 mg/Kg dry CNL04/13/26 15431 Methyl tert-butyl ether 0.00470.0017<0.0017 mg/Kg dry CNL04/13/26 15431 4-Methyl-2-pentanone 0.00470.0020<0.0020 mg/Kg dry CNL04/13/26 15431 Methylene chloride 0.0190.00190.0023 Jmg/Kg dry CNL04/13/26 15431 1-Methylnaphthalene 0.00930.0093<0.0093 mg/Kg dry CNL04/13/26 15431 2-Methylnaphthalene 0.00930.00050<0.00050 mg/Kg dry CNL04/13/26 15431 Naphthalene 0.00930.0019<0.0019 mg/Kg dry CNL04/13/26 15431 Styrene 0.00470.00070<0.00070 mg/Kg dry CNL04/13/26 15431 1,1,1,2-Tetrachloroethane 0.00930.00076<0.00076 mg/Kg dry CNL04/13/26 15431 1,1,2,2-Tetrachloroethane 0.00470.0012<0.0012 mg/Kg dry CNL04/13/26 15431 Tetrachloroethylene 0.00470.0011<0.0011 mg/Kg dry CNL04/13/26 15431 Toluene 0.00470.00073<0.00073 mg/Kg dry CNL04/13/26 15431 1,1,1-Trichloroethane 0.00470.0010<0.0010 mg/Kg dry CNL04/13/26 15431 1,1,2-Trichloroethane 0.00470.0012<0.0012 mg/Kg dry CNL04/13/26 15431 Trichloroethene 0.00470.0013<0.0013 mg/Kg dry CNL04/13/26 15431 Trichlorofluoromethane 0.00930.0011<0.0011 mg/Kg dry CNL04/13/26 15431 1,2,4-Trimethylbenzene 0.00470.00067<0.00067 mg/Kg dry CNL04/13/26 15431 1,3,5-Trimethylbenzene 0.00470.00079<0.00079 mg/Kg dry CNL04/13/26 15431 Vinyl Acetate 0.00930.0020<0.0020 mg/Kg dry CNL04/13/26 15431 Vinyl chloride 0.00930.0012<0.0012 mg/Kg dry CNL04/13/26 15431 m&p-xylene 0.00470.0016<0.0016 mg/Kg dry CNL04/13/26 15431 o-Xylene 0.00470.00084<0.00084 mg/Kg dry CNL04/13/26 15431 Xylenes (total)0.00470.0024<0.0024 mg/Kg dry CNL04/13/26 15431 86.5 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1543 98.8 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1543 101 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1543 101 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1543 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0730.044<0.044 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Acenaphthylene 0.0730.0470.049 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Anthracene 0.0730.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Benzo(a)anthracene 0.0730.0250.36 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Benzo(a)pyrene 0.0730.0250.38 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Benzo(b)fluoranthene 0.0730.0300.58 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Benzo(g,h,i)perylene 0.0730.0240.22 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Benzo(k)fluoranthene 0.0730.0620.12 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Chrysene 0.0730.0270.37 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Dibenz(a,h)anthracene 0.0730.0350.060 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Fluoranthene 0.0730.0290.31 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Fluorene 0.0730.039<0.039 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 22 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-07 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-07[TOC] 04/07/2026 11:20 B-7 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0730.0210.21 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Naphthalene 0.0730.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Phenanthrene 0.0730.029<0.029 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 Pyrene 0.0730.0290.26 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 1-Methylnaphthalene 0.0730.073<0.073 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 2-Methylnaphthalene 0.0730.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 14571 68.5 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1457 69.0 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1457 73.5 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1457 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 23 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-08 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-08[TOC] 04/07/2026 11:35 B-8 (1-2) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105190.2 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04230.007060.0525 mg/Kg dry 04/09/26 0530 MCW04/09/26 13561 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5230.3421.95 Q10mg/Kg dry 04/09/26 0247 MCW04/09/26 20011 Barium 0.2090.085896.8 mg/Kg dry 04/09/26 0247 MCW04/09/26 20011 Cadmium 0.2090.01360.0471 Jmg/Kg dry 04/09/26 0247 MCW04/09/26 20011 Chromium 0.2090.07328.62 mg/Kg dry 04/09/26 0247 MCW04/10/26 18321 Lead 0.3920.214108 mg/Kg dry 04/09/26 0247 MCW04/10/26 18321 Selenium 1.570.335<0.335 mg/Kg dry 04/09/26 0247 MCW04/09/26 20011 Silver 0.5230.0575<0.0575 mg/Kg dry 04/09/26 0247 MCW04/10/26 18321 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0490.0043<0.0043 Qmg/Kg dry CNL04/13/26 16071 Acrylonitrile 0.0980.026<0.026 mg/Kg dry CNL04/13/26 16071 Benzene 0.00490.00083<0.00083 mg/Kg dry CNL04/13/26 16071 Bromodichloromethane 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 16071 Bromoform 0.00490.0016<0.0016 mg/Kg dry CNL04/13/26 16071 2-Butanone 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 16071 Carbon Disulfide 0.00980.0010<0.0010 mg/Kg dry CNL04/13/26 16071 Carbon tetrachloride 0.00490.0010<0.0010 mg/Kg dry CNL04/13/26 16071 Chlorobenzene 0.00490.00053<0.00053 mg/Kg dry CNL04/13/26 16071 Chlorodibromomethane 0.00490.00098<0.00098 mg/Kg dry CNL04/13/26 16071 Chloroethane 0.00980.0019<0.0019 mg/Kg dry CNL04/13/26 16071 Chloroform 0.00490.00061<0.00061 mg/Kg dry CNL04/13/26 16071 1,2-Dibromo-3-chloropropane 0.00490.0020<0.0020 mg/Kg dry CNL04/13/26 16071 1,2-Dibromoethane 0.00490.0014<0.0014 mg/Kg dry CNL04/13/26 16071 1,1-Dichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 16071 1,2-Dichloroethane 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 16071 1,1-Dichloroethene 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 16071 cis-1,2-Dichloroethylene 0.00490.00070<0.00070 mg/Kg dry CNL04/13/26 16071 trans-1,2-Dichloroethylene 0.00490.00096<0.00096 mg/Kg dry CNL04/13/26 16071 cis & trans-1,2-Dichloroethylene 0.00490.0015<0.0015 mg/Kg dry CNL04/13/26 16071 1,2-Dichloropropane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 16071 cis-1,3-Dichloropropylene 0.00490.00051<0.00051 mg/Kg dry CNL04/13/26 16071 trans-1,3-Dichloropropylene 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 16071 Ethylbenzene 0.00490.00090<0.00090 mg/Kg dry CNL04/13/26 16071 2-Hexanone 0.00490.0022<0.0022 mg/Kg dry CNL04/13/26 16071 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 24 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-08 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-08[TOC] 04/07/2026 11:35 B-8 (1-2) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.00980.0015<0.0015 mg/Kg dry CNL04/13/26 16071 Methyl chloride 0.00980.0011<0.0011 mg/Kg dry CNL04/13/26 16071 Methyl tert-butyl ether 0.00490.0018<0.0018 mg/Kg dry CNL04/13/26 16071 4-Methyl-2-pentanone 0.00490.0021<0.0021 mg/Kg dry CNL04/13/26 16071 Methylene chloride 0.0200.00200.0045 Jmg/Kg dry CNL04/13/26 16071 1-Methylnaphthalene 0.00980.0098<0.0098 mg/Kg dry CNL04/13/26 16071 2-Methylnaphthalene 0.00980.00053<0.00053 mg/Kg dry CNL04/13/26 16071 Naphthalene 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 16071 Styrene 0.00490.00073<0.00073 mg/Kg dry CNL04/13/26 16071 1,1,1,2-Tetrachloroethane 0.00980.00079<0.00079 mg/Kg dry CNL04/13/26 16071 1,1,2,2-Tetrachloroethane 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 16071 Tetrachloroethylene 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 16071 Toluene 0.00490.000760.00077 Jmg/Kg dry CNL04/13/26 16071 1,1,1-Trichloroethane 0.00490.0011<0.0011 mg/Kg dry CNL04/13/26 16071 1,1,2-Trichloroethane 0.00490.0012<0.0012 mg/Kg dry CNL04/13/26 16071 Trichloroethene 0.00490.0013<0.0013 mg/Kg dry CNL04/13/26 16071 Trichlorofluoromethane 0.00980.0012<0.0012 mg/Kg dry CNL04/13/26 16071 1,2,4-Trimethylbenzene 0.00490.00071<0.00071 mg/Kg dry CNL04/13/26 16071 1,3,5-Trimethylbenzene 0.00490.00082<0.00082 mg/Kg dry CNL04/13/26 16071 Vinyl Acetate 0.00980.0020<0.0020 mg/Kg dry CNL04/13/26 16071 Vinyl chloride 0.00980.0013<0.0013 mg/Kg dry CNL04/13/26 16071 m&p-xylene 0.00490.0017<0.0017 mg/Kg dry CNL04/13/26 16071 o-Xylene 0.00490.00088<0.00088 mg/Kg dry CNL04/13/26 16071 Xylenes (total)0.00490.0025<0.0025 mg/Kg dry CNL04/13/26 16071 80.1 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1607 106 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1607 111 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1607 108 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1607 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0730.044<0.044 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Acenaphthylene 0.0730.047<0.047 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Anthracene 0.0730.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Benzo(a)anthracene 0.0730.0250.097 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Benzo(a)pyrene 0.0730.0260.10 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Benzo(b)fluoranthene 0.0730.0300.14 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Benzo(g,h,i)perylene 0.0730.0240.049 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Benzo(k)fluoranthene 0.0730.063<0.063 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Chrysene 0.0730.0270.096 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Dibenz(a,h)anthracene 0.0730.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Fluoranthene 0.0730.0290.17 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Fluorene 0.0730.039<0.039 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 25 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-08 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-08[TOC] 04/07/2026 11:35 B-8 (1-2) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0730.0210.044 Jmg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Naphthalene 0.0730.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Phenanthrene 0.0730.0290.093 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 Pyrene 0.0730.0290.14 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 1-Methylnaphthalene 0.0730.073<0.073 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 2-Methylnaphthalene 0.0730.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 15211 71.5 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1521 73.8 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1521 73.4 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1521 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 26 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-09 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-09[TOC] 04/07/2026 12:00 B-9 (5-7) Sample Matrix:Solid Inorganics Total RL PreparedUnits AnalyzedNote AnalystResultDF SM 2540 G-2015 0.100 04/10/26 105191.4 04/09/26 1434Percent Solids ABG% (by wt.)1 Metals Total by CVAA Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 7471/EPA 7471B Mercury 0.04380.00729<0.00729 mg/Kg dry 04/09/26 0530 MCW04/09/26 13571 Metals Total by ICP Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3050B/EPA 6010C Arsenic 0.5260.3441.77 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Barium 0.2100.08636.98 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Cadmium 0.2100.0137<0.0137 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Chromium 0.2100.07364.15 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Lead 0.3950.2164.86 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Selenium 1.580.337<0.337 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Silver 0.5260.0579<0.0579 mg/Kg dry 04/14/26 0211 MCW04/14/26 16051 Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 0.0500.0044<0.0044 Qmg/Kg dry CNL04/13/26 16311 Acrylonitrile 0.100.027<0.027 mg/Kg dry CNL04/13/26 16311 Benzene 0.00500.00085<0.00085 mg/Kg dry CNL04/13/26 16311 Bromodichloromethane 0.00500.00084<0.00084 mg/Kg dry CNL04/13/26 16311 Bromoform 0.00500.0016<0.0016 mg/Kg dry CNL04/13/26 16311 2-Butanone 0.0100.0011<0.0011 mg/Kg dry CNL04/13/26 16311 Carbon Disulfide 0.0100.0010<0.0010 mg/Kg dry CNL04/13/26 16311 Carbon tetrachloride 0.00500.0011<0.0011 mg/Kg dry CNL04/13/26 16311 Chlorobenzene 0.00500.00054<0.00054 mg/Kg dry CNL04/13/26 16311 Chlorodibromomethane 0.00500.0010<0.0010 mg/Kg dry CNL04/13/26 16311 Chloroethane 0.0100.0019<0.0019 mg/Kg dry CNL04/13/26 16311 Chloroform 0.00500.00062<0.00062 mg/Kg dry CNL04/13/26 16311 1,2-Dibromo-3-chloropropane 0.00500.0021<0.0021 mg/Kg dry CNL04/13/26 16311 1,2-Dibromoethane 0.00500.0014<0.0014 mg/Kg dry CNL04/13/26 16311 1,1-Dichloroethane 0.00500.0011<0.0011 mg/Kg dry CNL04/13/26 16311 1,2-Dichloroethane 0.00500.0016<0.0016 mg/Kg dry CNL04/13/26 16311 1,1-Dichloroethene 0.00500.0012<0.0012 mg/Kg dry CNL04/13/26 16311 cis-1,2-Dichloroethylene 0.00500.00071<0.00071 mg/Kg dry CNL04/13/26 16311 trans-1,2-Dichloroethylene 0.00500.00098<0.00098 mg/Kg dry CNL04/13/26 16311 cis & trans-1,2-Dichloroethylene 0.00500.0015<0.0015 mg/Kg dry CNL04/13/26 16311 1,2-Dichloropropane 0.00500.0012<0.0012 mg/Kg dry CNL04/13/26 16311 cis-1,3-Dichloropropylene 0.00500.00052<0.00052 mg/Kg dry CNL04/13/26 16311 trans-1,3-Dichloropropylene 0.00500.0012<0.0012 mg/Kg dry CNL04/13/26 16311 Ethylbenzene 0.00500.00092<0.00092 mg/Kg dry CNL04/13/26 16311 2-Hexanone 0.00500.0022<0.0022 mg/Kg dry CNL04/13/26 16311 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 27 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-09 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-09[TOC] 04/07/2026 12:00 B-9 (5-7) Sample Matrix:Solid Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Methyl bromide 0.0100.0015<0.0015 mg/Kg dry CNL04/13/26 16311 Methyl chloride 0.0100.0011<0.0011 mg/Kg dry CNL04/13/26 16311 Methyl tert-butyl ether 0.00500.0018<0.0018 mg/Kg dry CNL04/13/26 16311 4-Methyl-2-pentanone 0.00500.0021<0.0021 mg/Kg dry CNL04/13/26 16311 Methylene chloride 0.0200.00200.0041 Jmg/Kg dry CNL04/13/26 16311 1-Methylnaphthalene 0.0100.010<0.010 mg/Kg dry CNL04/13/26 16311 2-Methylnaphthalene 0.0100.00054<0.00054 mg/Kg dry CNL04/13/26 16311 Naphthalene 0.0100.0020<0.0020 mg/Kg dry CNL04/13/26 16311 Styrene 0.00500.00075<0.00075 mg/Kg dry CNL04/13/26 16311 1,1,1,2-Tetrachloroethane 0.0100.00081<0.00081 mg/Kg dry CNL04/13/26 16311 1,1,2,2-Tetrachloroethane 0.00500.0013<0.0013 mg/Kg dry CNL04/13/26 16311 Tetrachloroethylene 0.00500.0012<0.0012 mg/Kg dry CNL04/13/26 16311 Toluene 0.00500.000780.00084 Jmg/Kg dry CNL04/13/26 16311 1,1,1-Trichloroethane 0.00500.0011<0.0011 mg/Kg dry CNL04/13/26 16311 1,1,2-Trichloroethane 0.00500.0013<0.0013 mg/Kg dry CNL04/13/26 16311 Trichloroethene 0.00500.0013<0.0013 mg/Kg dry CNL04/13/26 16311 Trichlorofluoromethane 0.0100.0012<0.0012 mg/Kg dry CNL04/13/26 16311 1,2,4-Trimethylbenzene 0.00500.00072<0.00072 mg/Kg dry CNL04/13/26 16311 1,3,5-Trimethylbenzene 0.00500.00084<0.00084 mg/Kg dry CNL04/13/26 16311 Vinyl Acetate 0.0100.0021<0.0021 mg/Kg dry CNL04/13/26 16311 Vinyl chloride 0.0100.0013<0.0013 mg/Kg dry CNL04/13/26 16311 m&p-xylene 0.00500.0018<0.0018 mg/Kg dry CNL04/13/26 16311 o-Xylene 0.00500.00090<0.00090 mg/Kg dry CNL04/13/26 16311 Xylenes (total)0.00500.0025<0.0025 mg/Kg dry CNL04/13/26 16311 79.3 % RecSurrogate: 4-Bromofluorobenzene Limit: 57.4-135 CNL04/13/26 1631 102 % RecSurrogate: Dibromofluoromethane Limit: 63.5-139 CNL04/13/26 1631 107 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 51.7-162 CNL04/13/26 1631 102 % RecSurrogate: Toluene-d8 Limit: 66.6-143 CNL04/13/26 1631 Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW846 3550C/EPA 8270C Acenaphthene 0.0720.043<0.043 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Acenaphthylene 0.0720.046<0.046 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Anthracene 0.0720.032<0.032 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Benzo(a)anthracene 0.0720.025<0.025 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Benzo(a)pyrene 0.0720.025<0.025 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Benzo(b)fluoranthene 0.0720.030<0.030 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Benzo(g,h,i)perylene 0.0720.023<0.023 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Benzo(k)fluoranthene 0.0720.062<0.062 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Chrysene 0.0720.027<0.027 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Dibenz(a,h)anthracene 0.0720.035<0.035 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Fluoranthene 0.0720.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Fluorene 0.0720.038<0.038 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 28 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-09 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-09[TOC] 04/07/2026 12:00 B-9 (5-7) Sample Matrix:Solid Semivolatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst Indeno(1,2,3-cd) pyrene 0.0720.021<0.021 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Naphthalene 0.0720.048<0.048 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Phenanthrene 0.0720.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 Pyrene 0.0720.028<0.028 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 1-Methylnaphthalene 0.0720.072<0.072 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 2-Methylnaphthalene 0.0720.050<0.050 mg/Kg dry 04/09/26 0944 JBS04/10/26 15451 61.9 % RecSurrogate: 2-Fluorobiphenyl Limit: 28.1-110 04/09/26 0944 JBS04/10/26 1545 63.8 % RecSurrogate: Nitrobenzene-d5 Limit: 33.6-110 04/09/26 0944 JBS04/10/26 1545 71.1 % RecSurrogate: p-Terphenyl-d14 Limit: 35.8-121 04/09/26 0944 JBS04/10/26 1545 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 29 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-10 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-10[TOC] 04/07/2026 10:00 B-3 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 200.382.3 Jug/L CNL04/10/26 16321 Acrylonitrile 103.7<3.7 Q12ug/L CNL04/10/26 16321 Benzene 1.00.14<0.14 ug/L CNL04/10/26 16321 Bromodichloromethane 1.00.16<0.16 ug/L CNL04/10/26 16321 Bromoform 1.00.12<0.12 ug/L CNL04/10/26 16321 2-Butanone 2.00.33<0.33 ug/L CNL04/10/26 16321 Carbon Disulfide 2.00.59<0.59 ug/L CNL04/10/26 16321 Carbon tetrachloride 1.00.14<0.14 ug/L CNL04/10/26 16321 Chlorobenzene 1.00.14<0.14 ug/L CNL04/10/26 16321 Chlorodibromomethane 1.00.13<0.13 ug/L CNL04/10/26 16321 Chloroethane 2.00.30<0.30 ug/L CNL04/10/26 16321 Chloroform 1.00.21<0.21 ug/L CNL04/10/26 16321 1,2-Dibromo-3-chloropropane 5.00.19<0.19 ug/L CNL04/10/26 16321 1,2-Dibromoethane 1.00.15<0.15 ug/L CNL04/10/26 16321 1,1-Dichloroethane 1.00.17<0.17 ug/L CNL04/10/26 16321 1,2-Dichloroethane 1.00.28<0.28 ug/L CNL04/10/26 16321 1,1-Dichloroethene 1.00.12<0.12 ug/L CNL04/10/26 16321 cis-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 16321 trans-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 16321 cis & trans-1,2-Dichloroethylene 1.00.19<0.19 ug/L CNL04/10/26 16321 1,2-Dichloropropane 1.00.22<0.22 ug/L CNL04/10/26 16321 cis-1,3-Dichloropropylene 1.00.13<0.13 ug/L CNL04/10/26 16321 trans-1,3-Dichloropropylene 1.00.20<0.20 ug/L CNL04/10/26 16321 Ethylbenzene 1.00.15<0.15 ug/L CNL04/10/26 16321 2-Hexanone 2.00.47<0.47 ug/L CNL04/10/26 16321 Methyl bromide 2.00.83<0.83 ug/L CNL04/10/26 16321 Methyl chloride 2.00.94<0.94 ug/L CNL04/10/26 16321 Methyl tert-butyl ether 2.00.31<0.31 ug/L CNL04/10/26 16321 4-Methyl-2-pentanone 1.00.38<0.38 ug/L CNL04/10/26 16321 Methylene chloride 2.00.41<0.41 ug/L CNL04/10/26 16321 1-Methylnaphthalene 100.63<0.63 Qug/L CNL04/10/26 16321 2-Methylnaphthalene 100.63<0.63 ug/L CNL04/10/26 16321 Naphthalene 1.00.31<0.31 ug/L CNL04/10/26 16321 Styrene 1.00.11<0.11 ug/L CNL04/10/26 16321 1,1,1,2-Tetrachloroethane 2.00.11<0.11 ug/L CNL04/10/26 16321 1,1,2,2-Tetrachloroethane 1.00.31<0.31 ug/L CNL04/10/26 16321 Tetrachloroethylene 1.00.210.21 Jug/L CNL04/10/26 16321 Toluene 1.00.150.18 Jug/L CNL04/10/26 16321 1,1,1-Trichloroethane 1.00.12<0.12 ug/L CNL04/10/26 16321 1,1,2-Trichloroethane 1.00.24<0.24 ug/L CNL04/10/26 16321 Trichloroethene 1.00.15<0.15 ug/L CNL04/10/26 16321 Trichlorofluoromethane 2.00.15<0.15 ug/L CNL04/10/26 16321 1,2,4-Trimethylbenzene 1.00.34<0.34 ug/L CNL04/10/26 16321 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 30 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-10 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-10[TOC] 04/07/2026 10:00 B-3 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst 1,3,5-Trimethylbenzene 1.00.29<0.29 ug/L CNL04/10/26 16321 Vinyl Acetate 2.00.32<0.32 ug/L CNL04/10/26 16321 Vinyl chloride 1.00.29<0.29 ug/L CNL04/10/26 16321 m&p-xylene 2.00.30<0.30 ug/L CNL04/10/26 16321 o-Xylene 1.00.12<0.12 ug/L CNL04/10/26 16321 Xylenes (total)2.00.42<0.42 ug/L CNL04/10/26 16321 86.5 % RecSurrogate: 4-Bromofluorobenzene Limit: 80-120 CNL04/10/26 1632 94.7 % RecSurrogate: Dibromofluoromethane Limit: 80-120 CNL04/10/26 1632 93.7 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 80-132 CNL04/10/26 1632 96.0 % RecSurrogate: Toluene-d8 Limit: 80-120 CNL04/10/26 1632 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 31 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-11 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-11[TOC] 04/07/2026 11:15 B-6 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 200.380.93 Jug/L CNL04/10/26 16541 Acrylonitrile 103.7<3.7 ug/L CNL04/10/26 16541 Benzene 1.00.14<0.14 ug/L CNL04/10/26 16541 Bromodichloromethane 1.00.16<0.16 ug/L CNL04/10/26 16541 Bromoform 1.00.12<0.12 ug/L CNL04/10/26 16541 2-Butanone 2.00.33<0.33 ug/L CNL04/10/26 16541 Carbon Disulfide 2.00.59<0.59 ug/L CNL04/10/26 16541 Carbon tetrachloride 1.00.14<0.14 ug/L CNL04/10/26 16541 Chlorobenzene 1.00.14<0.14 ug/L CNL04/10/26 16541 Chlorodibromomethane 1.00.13<0.13 ug/L CNL04/10/26 16541 Chloroethane 2.00.30<0.30 ug/L CNL04/10/26 16541 Chloroform 1.00.21<0.21 ug/L CNL04/10/26 16541 1,2-Dibromo-3-chloropropane 5.00.19<0.19 ug/L CNL04/10/26 16541 1,2-Dibromoethane 1.00.15<0.15 ug/L CNL04/10/26 16541 1,1-Dichloroethane 1.00.17<0.17 ug/L CNL04/10/26 16541 1,2-Dichloroethane 1.00.28<0.28 ug/L CNL04/10/26 16541 1,1-Dichloroethene 1.00.12<0.12 ug/L CNL04/10/26 16541 cis-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 16541 trans-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 16541 cis & trans-1,2-Dichloroethylene 1.00.19<0.19 ug/L CNL04/10/26 16541 1,2-Dichloropropane 1.00.22<0.22 ug/L CNL04/10/26 16541 cis-1,3-Dichloropropylene 1.00.13<0.13 ug/L CNL04/10/26 16541 trans-1,3-Dichloropropylene 1.00.20<0.20 ug/L CNL04/10/26 16541 Ethylbenzene 1.00.15<0.15 ug/L CNL04/10/26 16541 2-Hexanone 2.00.47<0.47 ug/L CNL04/10/26 16541 Methyl bromide 2.00.83<0.83 ug/L CNL04/10/26 16541 Methyl chloride 2.00.94<0.94 ug/L CNL04/10/26 16541 Methyl tert-butyl ether 2.00.31<0.31 ug/L CNL04/10/26 16541 4-Methyl-2-pentanone 1.00.38<0.38 ug/L CNL04/10/26 16541 Methylene chloride 2.00.41<0.41 ug/L CNL04/10/26 16541 1-Methylnaphthalene 100.63<0.63 Qug/L CNL04/10/26 16541 2-Methylnaphthalene 100.63<0.63 ug/L CNL04/10/26 16541 Naphthalene 1.00.31<0.31 ug/L CNL04/10/26 16541 Styrene 1.00.11<0.11 ug/L CNL04/10/26 16541 1,1,1,2-Tetrachloroethane 2.00.11<0.11 ug/L CNL04/10/26 16541 1,1,2,2-Tetrachloroethane 1.00.31<0.31 ug/L CNL04/10/26 16541 Tetrachloroethylene 1.00.210.23 Jug/L CNL04/10/26 16541 Toluene 1.00.150.25 Jug/L CNL04/10/26 16541 1,1,1-Trichloroethane 1.00.12<0.12 ug/L CNL04/10/26 16541 1,1,2-Trichloroethane 1.00.24<0.24 ug/L CNL04/10/26 16541 Trichloroethene 1.00.15<0.15 ug/L CNL04/10/26 16541 Trichlorofluoromethane 2.00.15<0.15 ug/L CNL04/10/26 16541 1,2,4-Trimethylbenzene 1.00.34<0.34 ug/L CNL04/10/26 16541 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 32 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-11 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-11[TOC] 04/07/2026 11:15 B-6 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst 1,3,5-Trimethylbenzene 1.00.29<0.29 ug/L CNL04/10/26 16541 Vinyl Acetate 2.00.32<0.32 ug/L CNL04/10/26 16541 Vinyl chloride 1.00.29<0.29 ug/L CNL04/10/26 16541 m&p-xylene 2.00.30<0.30 ug/L CNL04/10/26 16541 o-Xylene 1.00.12<0.12 ug/L CNL04/10/26 16541 Xylenes (total)2.00.42<0.42 ug/L CNL04/10/26 16541 85.5 % RecSurrogate: 4-Bromofluorobenzene Limit: 80-120 CNL04/10/26 1654 94.4 % RecSurrogate: Dibromofluoromethane Limit: 80-120 CNL04/10/26 1654 93.7 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 80-132 CNL04/10/26 1654 97.0 % RecSurrogate: Toluene-d8 Limit: 80-120 CNL04/10/26 1654 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 33 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-12 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-12[TOC] 04/07/2026 12:35 B-9 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst SW-846 8260B/EPA 8260B Acetone 200.381.1 Jug/L CNL04/10/26 17151 Acrylonitrile 103.7<3.7 Q12ug/L CNL04/10/26 17151 Benzene 1.00.14<0.14 ug/L CNL04/10/26 17151 Bromodichloromethane 1.00.16<0.16 ug/L CNL04/10/26 17151 Bromoform 1.00.12<0.12 ug/L CNL04/10/26 17151 2-Butanone 2.00.33<0.33 ug/L CNL04/10/26 17151 Carbon Disulfide 2.00.59<0.59 ug/L CNL04/10/26 17151 Carbon tetrachloride 1.00.14<0.14 ug/L CNL04/10/26 17151 Chlorobenzene 1.00.14<0.14 ug/L CNL04/10/26 17151 Chlorodibromomethane 1.00.13<0.13 ug/L CNL04/10/26 17151 Chloroethane 2.00.30<0.30 ug/L CNL04/10/26 17151 Chloroform 1.00.21<0.21 ug/L CNL04/10/26 17151 1,2-Dibromo-3-chloropropane 5.00.19<0.19 ug/L CNL04/10/26 17151 1,2-Dibromoethane 1.00.15<0.15 ug/L CNL04/10/26 17151 1,1-Dichloroethane 1.00.17<0.17 ug/L CNL04/10/26 17151 1,2-Dichloroethane 1.00.28<0.28 ug/L CNL04/10/26 17151 1,1-Dichloroethene 1.00.12<0.12 ug/L CNL04/10/26 17151 cis-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 17151 trans-1,2-Dichloroethylene 1.00.14<0.14 ug/L CNL04/10/26 17151 cis & trans-1,2-Dichloroethylene 1.00.19<0.19 ug/L CNL04/10/26 17151 1,2-Dichloropropane 1.00.22<0.22 ug/L CNL04/10/26 17151 cis-1,3-Dichloropropylene 1.00.13<0.13 ug/L CNL04/10/26 17151 trans-1,3-Dichloropropylene 1.00.20<0.20 ug/L CNL04/10/26 17151 Ethylbenzene 1.00.15<0.15 ug/L CNL04/10/26 17151 2-Hexanone 2.00.47<0.47 ug/L CNL04/10/26 17151 Methyl bromide 2.00.83<0.83 ug/L CNL04/10/26 17151 Methyl chloride 2.00.94<0.94 ug/L CNL04/10/26 17151 Methyl tert-butyl ether 2.00.31<0.31 ug/L CNL04/10/26 17151 4-Methyl-2-pentanone 1.00.38<0.38 ug/L CNL04/10/26 17151 Methylene chloride 2.00.41<0.41 ug/L CNL04/10/26 17151 1-Methylnaphthalene 100.63<0.63 Qug/L CNL04/10/26 17151 2-Methylnaphthalene 100.63<0.63 ug/L CNL04/10/26 17151 Naphthalene 1.00.31<0.31 ug/L CNL04/10/26 17151 Styrene 1.00.11<0.11 ug/L CNL04/10/26 17151 1,1,1,2-Tetrachloroethane 2.00.11<0.11 ug/L CNL04/10/26 17151 1,1,2,2-Tetrachloroethane 1.00.31<0.31 ug/L CNL04/10/26 17151 Tetrachloroethylene 1.00.210.51 Jug/L CNL04/10/26 17151 Toluene 1.00.150.21 Jug/L CNL04/10/26 17151 1,1,1-Trichloroethane 1.00.12<0.12 ug/L CNL04/10/26 17151 1,1,2-Trichloroethane 1.00.24<0.24 ug/L CNL04/10/26 17151 Trichloroethene 1.00.15<0.15 ug/L CNL04/10/26 17151 Trichlorofluoromethane 2.00.15<0.15 ug/L CNL04/10/26 17151 1,2,4-Trimethylbenzene 1.00.34<0.34 ug/L CNL04/10/26 17151 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 34 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland C6D0475-12 Client Sample ID: Lab Sample ID:Collection Date: OC_1]Results - C6D0475-12[TOC] 04/07/2026 12:35 B-9 (GW) Sample Matrix:Aqueous Volatile Organic Compounds by GCMS Result MDL RL Units DF Note Prepared Analyzed Analyst 1,3,5-Trimethylbenzene 1.00.29<0.29 ug/L CNL04/10/26 17151 Vinyl Acetate 2.00.32<0.32 ug/L CNL04/10/26 17151 Vinyl chloride 1.00.29<0.29 ug/L CNL04/10/26 17151 m&p-xylene 2.00.30<0.30 ug/L CNL04/10/26 17151 o-Xylene 1.00.12<0.12 ug/L CNL04/10/26 17151 Xylenes (total)2.00.42<0.42 ug/L CNL04/10/26 17151 86.1 % RecSurrogate: 4-Bromofluorobenzene Limit: 80-120 CNL04/10/26 1715 93.9 % RecSurrogate: Dibromofluoromethane Limit: 80-120 CNL04/10/26 1715 93.8 % RecSurrogate: 1,2-Dichloroethane-d4 Limit: 80-132 CNL04/10/26 1715 96.4 % RecSurrogate: Toluene-d8 Limit: 80-120 CNL04/10/26 1715 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 35 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Batch Log Summary Laboratory ID Client / Source IDBatchMethod B289142-DUP2 C6D0350-02B289142SM 2540 G-2015 B289142-DUP1 C6D0350-01 C6D0475-02 B-2 (1-2) C6D0475-01 B-1 (1-2) Laboratory ID Client / Source IDBatchMethod B289176-BLK1B289176EPA 6010C B289176-BS1 B289176-MS1 C6C1871-06 B289176-MSD1 C6C1871-06 C6D0475-01 B-1 (1-2) C6D0475-02 B-2 (1-2) C6D0475-03 B-3 (1-2) C6D0475-04 B-4 (1-2) C6D0475-05 B-5 (1-2) C6D0475-06 B-6 (1-2) C6D0475-07 B-7 (1-2) C6D0475-08 B-8 (1-2) C6D0475-01RE1 B-1 (1-2) C6D0475-02RE1 B-2 (1-2) C6D0475-03RE1 B-3 (1-2) C6D0475-04RE1 B-4 (1-2) C6D0475-05RE1 B-5 (1-2) C6D0475-06RE1 B-6 (1-2) C6D0475-07RE1 B-7 (1-2) C6D0475-08RE1 B-8 (1-2) Laboratory ID Client / Source IDBatchMethod B289179-BLK1B289179EPA 7471B B289179-BS1 B289179-MS1 C6D0209-01 B289179-MSD1 C6D0209-01 C6D0475-01 B-1 (1-2) C6D0475-02 B-2 (1-2) C6D0475-03 B-3 (1-2) C6D0475-04 B-4 (1-2) C6D0475-05 B-5 (1-2) C6D0475-06 B-6 (1-2) C6D0475-07 B-7 (1-2) C6D0475-08 B-8 (1-2) C6D0475-09 B-9 (5-7) Laboratory ID Client / Source IDBatchMethod B289189-BLK1B289189EPA 8270C B289189-BS1 B289189-BSD1 C6D0475-01 B-1 (1-2) C6D0475-02 B-2 (1-2) C6D0475-03 B-3 (1-2) C6D0475-04 B-4 (1-2) C6D0475-05 B-5 (1-2) 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 36 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Laboratory ID Client / Source IDBatchMethod C6D0475-06 B-6 (1-2)B289189EPA 8270C C6D0475-07 B-7 (1-2) C6D0475-08 B-8 (1-2) C6D0475-09 B-9 (5-7) Laboratory ID Client / Source IDBatchMethod C6D0475-08 B-8 (1-2)B289249SM 2540 G-2015 C6D0475-03 B-3 (1-2) C6D0475-04 B-4 (1-2) C6D0475-05 B-5 (1-2) C6D0475-06 B-6 (1-2) B289249-DUP2 C6D0498-01 C6D0475-07 B-7 (1-2) B289249-DUP1 C6D0475-03 C6D0475-09 B-9 (5-7) Laboratory ID Client / Source IDBatchMethod B289313-BS1B289313EPA 8260B B289313-BSD1 B289313-BLK1 C6D0475-10 B-3 (GW) C6D0475-11 B-6 (GW) C6D0475-12 B-9 (GW) Laboratory ID Client / Source IDBatchMethod B289383-BS1B289383EPA 8260B B289383-BSD1 B289383-BLK1 B289383-MS1 C6D0469-01 B289383-MSD1 C6D0469-01 C6D0475-01 B-1 (1-2) C6D0475-02 B-2 (1-2) Laboratory ID Client / Source IDBatchMethod B289447-BS1B289447EPA 8260B B289447-BSD1 B289447-BLK1 C6D0475-03 B-3 (1-2) C6D0475-04 B-4 (1-2) C6D0475-06 B-6 (1-2) C6D0475-07 B-7 (1-2) C6D0475-08 B-8 (1-2) C6D0475-09 B-9 (5-7) C6D0475-05 B-5 (1-2) Laboratory ID Client / Source IDBatchMethod B289508-BLK1B289508EPA 6010C B289508-BS1 C6D0475-09 B-9 (5-7) B289508-MS1 C6D0564-01 B289508-MSD1 C6D0564-01 [TOC_1]Preparation Batch QC[TOC] Batch Quality Control Summary: Microbac Laboratories, Inc. - Chicagoland 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 37 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Inorganics Total Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike Batch B289142 - PSOLID_PMOIST_2540B_PR - SM 2540 G-2015 Duplicate (B289142-DUP1)Source: C6D0350-01 Prepared: 04/08/2026 15:14 Analyzed: 04/09/2026 11:56 Percent Solids 0.100 79.1 207.88% (by wt.)85.6 Duplicate (B289142-DUP2)Source: C6D0350-02 Prepared: 04/08/2026 15:14 Analyzed: 04/09/2026 11:56 Percent Solids 0.100 87.8 200.784% (by wt.)88.5 Batch B289249 - PSOLID_PMOIST_2540B_PR - SM 2540 G-2015 Duplicate (B289249-DUP1)Source: C6D0475-03 Prepared: 04/09/2026 14:34 Analyzed: 04/10/2026 10:51 Percent Solids 0.100 92.9 200.155% (by wt.)93.1 Duplicate (B289249-DUP2)Source: C6D0498-01 Prepared: 04/09/2026 14:34 Analyzed: 04/10/2026 10:51 Percent Solids 0.100 5.92 201.01% (by wt.)5.98 Metals Total by CVAA Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289179 - HGPREP_S - EPA 7471B Blank (B289179-BLK1)Prepared: 04/09/2026 05:30 Analyzed: 04/09/2026 13:31 Mercury 0.0420 mg/Kg wet<0.00700 0.00700 LCS (B289179-BS1)Prepared: 04/09/2026 05:30 Analyzed: 04/09/2026 13:32 Mercury 2.52 69-13191.5mg/Kg wet 21.319.5 0.420 Matrix Spike (B289179-MS1)Source: C6D0209-01 Prepared: 04/09/2026 05:30 Analyzed: 04/09/2026 13:43 Mercury 0.235 0.131 M280-12071.4mg/Kg dry 0.4670.465 0.0392 Matrix Spike Dup (B289179-MSD1)Source: C6D0209-01 Prepared: 04/09/2026 05:30 Analyzed: 04/09/2026 13:44 Mercury 0.232 0.131 2080-12092.5 18.0mg/Kg dry 0.4600.557 0.0386 Metals Total by ICP Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289176 - 3050I - EPA 6010C Blank (B289176-BLK1)Prepared: 04/09/2026 02:47 Analyzed: 04/09/2026 17:38 Arsenic 0.500 mg/Kg wet<0.327 0.327 Barium 0.200 mg/Kg wet<0.0820 0.0820 Cadmium 0.200 mg/Kg wet<0.0130 0.0130 Chromium 0.200 mg/Kg wet<0.0700 0.0700 Lead 0.375 mg/Kg wet<0.205 0.205 Selenium 1.50 mg/Kg wet<0.320 0.320 Silver 0.500 mg/Kg wet<0.0550 0.0550 LCS (B289176-BS1)Prepared: 04/09/2026 02:47 Analyzed: 04/09/2026 17:43 Arsenic 1.00 81-118103mg/Kg wet 2222280.654 Barium 0.400 81-118114mg/Kg wet 3594110.164 Cadmium 0.400 82-118103mg/Kg wet 1811860.0260 Chromium 0.400 81-119108mg/Kg wet 91.198.0 0.140 Lead 0.750 82-118103mg/Kg wet 1191220.410 Selenium 3.00 78-122100mg/Kg wet 1861860.640 Silver 1.00 79-12099.6mg/Kg wet 74.574.2 0.110 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 38 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Metals Total by ICP Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289176 - 3050I - EPA 6010C Matrix Spike (B289176-MS1)Source: C6C1871-06 Prepared: 04/09/2026 02:47 Analyzed: 04/09/2026 18:31 Arsenic 0.534 3.54 75-12596.4mg/Kg dry 1071070.349 Barium 0.214 52.4 M175-125128mg/Kg dry 1182030.0876 Cadmium 0.214 ND 75-12591.3mg/Kg dry 10.79.76 0.0139 Chromium 0.214 11.2 75-125101mg/Kg dry 1071190.0748 Lead 0.401 13.1 75-12593.6mg/Kg dry 1071130.219 Selenium 1.60 ND 75-12591.2mg/Kg dry 10797.4 0.342 Silver 0.534 ND 75-12595.5mg/Kg dry 10.710.2 0.0588 Matrix Spike Dup (B289176-MSD1)Source: C6C1871-06 Prepared: 04/09/2026 02:47 Analyzed: 04/09/2026 18:35 Arsenic 0.534 3.54 2075-12596.6 0.200mg/Kg dry 1071070.349 Barium 0.214 52.4 2075-125115 7.94mg/Kg dry 1181870.0876 Cadmium 0.214 ND 2075-12591.2 0.110mg/Kg dry 10.79.75 0.0139 Chromium 0.214 11.2 2075-12597.0 3.88mg/Kg dry 1071150.0748 Lead 0.401 13.1 2075-12594.9 1.17mg/Kg dry 1071140.219 Selenium 1.60 ND 2075-12591.1 0.0549mg/Kg dry 10797.3 0.342 Silver 0.534 ND 2075-12596.0 0.575mg/Kg dry 10.710.3 0.0588 Batch B289508 - 3050I - EPA 6010C Blank (B289508-BLK1)Prepared: 04/14/2026 02:11 Analyzed: 04/14/2026 15:50 Arsenic 0.500 mg/Kg wet<0.327 0.327 Barium 0.200 mg/Kg wet<0.0820 0.0820 Cadmium 0.200 mg/Kg wet<0.0130 0.0130 Chromium 0.200 mg/Kg wet<0.0700 0.0700 Lead 0.375 mg/Kg wet<0.205 0.205 Selenium 1.50 mg/Kg wet<0.320 0.320 Silver 0.500 mg/Kg wet<0.0550 0.0550 LCS (B289508-BS1)Prepared: 04/14/2026 02:11 Analyzed: 04/14/2026 15:55 Arsenic 1.00 81-11896.4mg/Kg wet 2222140.654 Barium 0.400 81-118103mg/Kg wet 3593680.164 Cadmium 0.400 82-11896.2mg/Kg wet 1811740.0260 Chromium 0.400 81-11996.2mg/Kg wet 91.187.6 0.140 Lead 0.750 82-11897.2mg/Kg wet 1191160.410 Selenium 3.00 78-12293.2mg/Kg wet 1861730.640 Silver 1.00 79-12091.9mg/Kg wet 74.568.5 0.110 Matrix Spike (B289508-MS1)Source: C6D0564-01 Prepared: 04/14/2026 02:11 Analyzed: 04/14/2026 16:53 Arsenic 0.467 ND 75-125102mg/Kg wet 93.595.2 0.306 Barium 0.187 ND 75-125100mg/Kg wet 1031030.0766 Cadmium 0.187 ND 75-12599.2mg/Kg wet 9.359.28 0.0121 Chromium 0.187 0.126 75-125100mg/Kg wet 93.593.7 0.0654 Lead 0.350 ND 75-12598.6mg/Kg wet 93.592.1 0.192 Selenium 1.40 ND 75-125109mg/Kg wet 93.51020.299 Silver 0.467 ND 75-125102mg/Kg wet 9.359.49 0.0514 Matrix Spike Dup (B289508-MSD1)Source: C6D0564-01 Prepared: 04/14/2026 02:11 Analyzed: 04/14/2026 16:57 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 39 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Metals Total by ICP Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289508 - 3050I - EPA 6010C Matrix Spike Dup (B289508-MSD1)Source: C6D0564-01 Prepared: 04/14/2026 02:11 Analyzed: 04/14/2026 16:57 Arsenic 0.472 ND 2075-125102 0.841mg/Kg wet 94.396.0 0.308 Barium 0.189 ND 2075-12599.5 0.529mg/Kg wet 1041030.0774 Cadmium 0.189 ND 2075-12599.0 0.687mg/Kg wet 9.439.34 0.0123 Chromium 0.189 0.126 2075-125100 0.989mg/Kg wet 94.394.6 0.0660 Lead 0.354 ND 2075-12599.0 1.39mg/Kg wet 94.393.4 0.193 Selenium 1.42 ND 2075-125109 1.08mg/Kg wet 94.31030.302 Silver 0.472 ND 2075-125101 0.840mg/Kg wet 9.439.57 0.0519 Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289313 - 8260_PR - EPA 8260B Blank (B289313-BLK1)Prepared & Analyzed: 04/10/2026 10:52 Acetone 20 ug/L<0.38 0.38 Acrylonitrile 10 ug/L<3.7 3.7 Benzene 1.0 ug/L<0.14 0.14 Bromodichloromethane 1.0 ug/L<0.16 0.16 Bromoform 1.0 ug/L<0.12 0.12 2-Butanone 2.0 ug/L<0.33 0.33 Carbon Disulfide 2.0 ug/L<0.59 0.59 Carbon tetrachloride 1.0 ug/L<0.14 0.14 Chlorobenzene 1.0 ug/L<0.14 0.14 Chlorodibromomethane 1.0 ug/L<0.13 0.13 Chloroethane 2.0 ug/L<0.30 0.30 Chloroform 1.0 ug/L<0.21 0.21 1,2-Dibromo-3-chloropropane 5.0 ug/L<0.19 0.19 1,2-Dibromoethane 1.0 ug/L<0.15 0.15 1,1-Dichloroethane 1.0 ug/L<0.17 0.17 1,2-Dichloroethane 1.0 ug/L<0.28 0.28 1,1-Dichloroethene 1.0 ug/L<0.12 0.12 cis-1,2-Dichloroethylene 1.0 ug/L<0.14 0.14 trans-1,2-Dichloroethylene 1.0 ug/L<0.14 0.14 cis & trans-1,2-Dichloroethylene 1.0 ug/L<0.19 0.19 1,2-Dichloropropane 1.0 ug/L<0.22 0.22 cis-1,3-Dichloropropylene 1.0 ug/L<0.13 0.13 trans-1,3-Dichloropropylene 1.0 ug/L<0.20 0.20 Ethylbenzene 1.0 ug/L<0.15 0.15 2-Hexanone 2.0 ug/L<0.47 0.47 Methyl bromide 2.0 ug/L<0.83 0.83 Methyl chloride 2.0 ug/L<0.94 0.94 Methyl tert-butyl ether 2.0 ug/L<0.31 0.31 4-Methyl-2-pentanone 1.0 ug/L<0.38 0.38 Methylene chloride 2.0 Jug/L0.41 0.41 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 40 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289313 - 8260_PR - EPA 8260B Blank (B289313-BLK1)Prepared & Analyzed: 04/10/2026 10:52 1-Methylnaphthalene 10 ug/L<0.63 0.63 2-Methylnaphthalene 10 ug/L<0.63 0.63 Naphthalene 1.0 ug/L<0.31 0.31 Styrene 1.0 ug/L<0.11 0.11 1,1,1,2-Tetrachloroethane 2.0 ug/L<0.11 0.11 1,1,2,2-Tetrachloroethane 1.0 ug/L<0.31 0.31 Tetrachloroethylene 1.0 ug/L<0.21 0.21 Toluene 1.0 ug/L<0.15 0.15 1,1,1-Trichloroethane 1.0 ug/L<0.12 0.12 1,1,2-Trichloroethane 1.0 ug/L<0.24 0.24 Trichloroethene 1.0 ug/L<0.15 0.15 Trichlorofluoromethane 2.0 ug/L<0.15 0.15 1,2,4-Trimethylbenzene 1.0 ug/L<0.34 0.34 1,3,5-Trimethylbenzene 1.0 ug/L<0.29 0.29 Vinyl Acetate 2.0 ug/L<0.32 0.32 Vinyl chloride 1.0 ug/L<0.29 0.29 m&p-xylene 2.0 ug/L<0.30 0.30 o-Xylene 1.0 ug/L<0.12 0.12 Xylenes (total)2.0 ug/L<0.42 0.42 80-120Surrogate: 4-Bromofluorobenzene 88.222ug/L 25 80-120Surrogate: Dibromofluoromethane 91.623ug/L 25 80-132Surrogate: 1,2-Dichloroethane-d4 90.323ug/L 25 80-120Surrogate: Toluene-d8 97.524ug/L 25 LCS (B289313-BS1)Prepared & Analyzed: 04/10/2026 09:28 Acetone 20 J52.5-11961.9ug/L 2012.4 0.38 Acrylonitrile 10 60-129106ug/L 2021.3 3.7 Benzene 1.0 82.5-123107ug/L 2021.5 0.14 Bromodichloromethane 1.0 80-11485.2ug/L 2017.0 0.16 Bromoform 1.0 60.5-11087.8ug/L 2017.6 0.12 2-Butanone 2.0 57.9-12484.1ug/L 2016.8 0.33 Carbon Disulfide 2.0 45.4-14577.2ug/L 2015.4 0.59 Carbon tetrachloride 1.0 74.8-12286.7ug/L 2017.3 0.14 Chlorobenzene 1.0 82-115112ug/L 2022.4 0.14 Chlorodibromomethane 1.0 77-11394.4ug/L 2018.9 0.13 Chloroethane 2.0 68.1-12885.2ug/L 2017.0 0.30 Chloroform 1.0 80.5-121106ug/L 2021.3 0.21 1,2-Dibromo-3-chloropropane 5.0 41.6-13486.6ug/L 2017.3 0.19 1,2-Dibromoethane 1.0 75.2-11393.4ug/L 2018.7 0.15 1,1-Dichloroethane 1.0 76.3-123102ug/L 2020.5 0.17 1,2-Dichloroethane 1.0 73.4-11793.2ug/L 2018.6 0.28 1,1-Dichloroethene 1.0 59.5-13296.4ug/L 2019.3 0.12 cis-1,2-Dichloroethylene 1.0 77.6-125105ug/L 2021.1 0.14 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 41 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289313 - 8260_PR - EPA 8260B LCS (B289313-BS1)Prepared & Analyzed: 04/10/2026 09:28 trans-1,2-Dichloroethylene 1.0 70.3-132104ug/L 2020.8 0.14 1,2-Dichloropropane 1.0 84.9-12597.0ug/L 2019.4 0.22 cis-1,3-Dichloropropylene 1.0 75-124104ug/L 2020.8 0.13 trans-1,3-Dichloropropylene 1.0 76-11597.2ug/L 2019.4 0.20 Ethylbenzene 1.0 84.7-117111ug/L 2022.2 0.15 2-Hexanone 2.0 47.8-11179.8ug/L 2016.0 0.47 Methyl bromide 2.0 22.3-12676.8ug/L 2015.4 0.83 Methyl chloride 2.0 48.9-11380.8ug/L 2016.2 0.94 Methyl tert-butyl ether 2.0 64.5-11377.0ug/L 2015.4 0.31 4-Methyl-2-pentanone 1.0 60.2-12289.2ug/L 2017.8 0.38 Methylene chloride 2.0 67-12094.8ug/L 2019.0 0.41 1-Methylnaphthalene 10 19.7-12578.4ug/L 2015.7 0.63 2-Methylnaphthalene 10 24.4-14065.8ug/L 2013.2 0.63 Naphthalene 1.0 54-11994.8ug/L 2019.0 0.31 Styrene 1.0 77-11399.6ug/L 2019.9 0.11 1,1,1,2-Tetrachloroethane 2.0 81.1-114109ug/L 2021.8 0.11 1,1,2,2-Tetrachloroethane 1.0 65.4-121102ug/L 2020.4 0.31 Tetrachloroethylene 1.0 77-120119ug/L 2023.7 0.21 Toluene 1.0 82.9-117112ug/L 2022.3 0.15 1,1,1-Trichloroethane 1.0 81.6-12594.9ug/L 2019.0 0.12 1,1,2-Trichloroethane 1.0 77.9-113104ug/L 2020.8 0.24 Trichloroethene 1.0 80-12095.1ug/L 2019.0 0.15 Trichlorofluoromethane 2.0 65.3-12486.2ug/L 2017.2 0.15 1,2,4-Trimethylbenzene 1.0 83.6-123122ug/L 2024.4 0.34 1,3,5-Trimethylbenzene 1.0 79.3-120103ug/L 2020.6 0.29 Vinyl Acetate 2.0 55-12674.2ug/L 2014.8 0.32 Vinyl chloride 1.0 41.7-13378.8ug/L 2015.8 0.29 m&p-xylene 2.0 83.1-118114ug/L 4045.6 0.30 o-Xylene 1.0 80.9-117110ug/L 2022.0 0.12 Xylenes (total)2.0 82.6-118113ug/L 6067.7 0.42 80-120Surrogate: 4-Bromofluorobenzene 93.223ug/L 25 80-120Surrogate: Dibromofluoromethane 91.123ug/L 25 80-132Surrogate: 1,2-Dichloroethane-d4 85.021ug/L 25 80-120Surrogate: Toluene-d8 97.824ug/L 25 LCS Dup (B289313-BSD1)Prepared & Analyzed: 04/10/2026 10:09 Acetone 20 30 J52.5-11960.8 1.79ug/L 2012.2 0.38 Acrylonitrile 10 3060-129104 1.85ug/L 2020.9 3.7 Benzene 1.0 3082.5-123105 2.55ug/L 2020.9 0.14 Bromodichloromethane 1.0 3080-11484.7 0.530ug/L 2016.9 0.16 Bromoform 1.0 3060.5-11087.5 0.285ug/L 2017.5 0.12 2-Butanone 2.0 3057.9-12482.8 1.56ug/L 2016.6 0.33 Carbon Disulfide 2.0 3045.4-14574.1 4.03ug/L 2014.8 0.59 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 42 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289313 - 8260_PR - EPA 8260B LCS Dup (B289313-BSD1)Prepared & Analyzed: 04/10/2026 10:09 Carbon tetrachloride 1.0 3074.8-12283.6 3.70ug/L 2016.7 0.14 Chlorobenzene 1.0 3082-115109 3.35ug/L 2021.7 0.14 Chlorodibromomethane 1.0 3077-11394.2 0.159ug/L 2018.8 0.13 Chloroethane 2.0 3068.1-12884.5 0.884ug/L 2016.9 0.30 Chloroform 1.0 3080.5-121104 1.95ug/L 2020.9 0.21 1,2-Dibromo-3-chloropropane 5.0 3041.6-13479.1 9.11ug/L 2015.8 0.19 1,2-Dibromoethane 1.0 3075.2-11393.1 0.268ug/L 2018.6 0.15 1,1-Dichloroethane 1.0 3076.3-123100 1.97ug/L 2020.1 0.17 1,2-Dichloroethane 1.0 3073.4-11793.3 0.0536ug/L 2018.7 0.28 1,1-Dichloroethene 1.0 3059.5-13291.8 4.83ug/L 2018.4 0.12 cis-1,2-Dichloroethylene 1.0 3077.6-125103 1.92ug/L 2020.7 0.14 trans-1,2-Dichloroethylene 1.0 3070.3-132101 2.87ug/L 2020.3 0.14 1,2-Dichloropropane 1.0 3084.9-12596.8 0.310ug/L 2019.4 0.22 cis-1,3-Dichloropropylene 1.0 3075-124103 1.31ug/L 2020.6 0.13 trans-1,3-Dichloropropylene 1.0 3076-11595.4 1.77ug/L 2019.1 0.20 Ethylbenzene 1.0 3084.7-117108 2.88ug/L 2021.5 0.15 2-Hexanone 2.0 3047.8-11180.1 0.313ug/L 2016.0 0.47 Methyl bromide 2.0 3022.3-12676.2 0.719ug/L 2015.2 0.83 Methyl chloride 2.0 3048.9-11374.2 8.58ug/L 2014.8 0.94 Methyl tert-butyl ether 2.0 3064.5-11378.5 1.93ug/L 2015.7 0.31 4-Methyl-2-pentanone 1.0 3060.2-12288.2 1.13ug/L 2017.6 0.38 Methylene chloride 2.0 3067-12095.4 0.631ug/L 2019.1 0.41 1-Methylnaphthalene 10 30 R119.7-12557.6 30.6ug/L 2011.5 0.63 2-Methylnaphthalene 10 3024.4-14051.9 23.5ug/L 2010.4 0.63 Naphthalene 1.0 3054-11987.0 8.53ug/L 2017.4 0.31 Styrene 1.0 3077-11396.7 2.90ug/L 2019.3 0.11 1,1,1,2-Tetrachloroethane 2.0 3081.1-114106 2.18ug/L 2021.3 0.11 1,1,2,2-Tetrachloroethane 1.0 3065.4-121100 1.43ug/L 2020.1 0.31 Tetrachloroethylene 1.0 3077-120114 3.73ug/L 2022.9 0.21 Toluene 1.0 3082.9-117108 3.28ug/L 2021.6 0.15 1,1,1-Trichloroethane 1.0 3081.6-12592.1 2.99ug/L 2018.4 0.12 1,1,2-Trichloroethane 1.0 3077.9-113104 0.384ug/L 2020.9 0.24 Trichloroethene 1.0 3080-12092.4 2.93ug/L 2018.5 0.15 Trichlorofluoromethane 2.0 3065.3-12482.2 4.69ug/L 2016.4 0.15 1,2,4-Trimethylbenzene 1.0 3083.6-123115 6.16ug/L 2023.0 0.34 1,3,5-Trimethylbenzene 1.0 3079.3-12097.5 5.34ug/L 2019.5 0.29 Vinyl Acetate 2.0 3055-12675.4 1.74ug/L 2015.1 0.32 Vinyl chloride 1.0 3041.7-13375.8 4.01ug/L 2015.2 0.29 m&p-xylene 2.0 3083.1-118111 2.48ug/L 4044.5 0.30 o-Xylene 1.0 3080.9-117107 2.67ug/L 2021.4 0.12 Xylenes (total)2.0 3082.6-118110 2.54ug/L 6066.0 0.42 80-120Surrogate: 4-Bromofluorobenzene 92.023ug/L 25 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 43 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289313 - 8260_PR - EPA 8260B LCS Dup (B289313-BSD1)Prepared & Analyzed: 04/10/2026 10:09 80-120Surrogate: Dibromofluoromethane 91.623ug/L 25 80-132Surrogate: 1,2-Dichloroethane-d4 85.421ug/L 25 80-120Surrogate: Toluene-d8 97.524ug/L 25 Batch B289383 - 8260_PR - EPA 8260B Blank (B289383-BLK1)Prepared & Analyzed: 04/12/2026 14:04 Acetone 0.050 mg/Kg wet<0.0044 0.0044 Acrylonitrile 0.10 mg/Kg wet<0.027 0.027 Benzene 0.0050 mg/Kg wet<0.00085 0.00085 Bromodichloromethane 0.0050 mg/Kg wet<0.00084 0.00084 Bromoform 0.0050 mg/Kg wet<0.0016 0.0016 2-Butanone 0.010 mg/Kg wet<0.0011 0.0011 Carbon Disulfide 0.010 mg/Kg wet<0.0010 0.0010 Carbon tetrachloride 0.0050 mg/Kg wet<0.0011 0.0011 Chlorobenzene 0.0050 mg/Kg wet<0.00054 0.00054 Chlorodibromomethane 0.0050 mg/Kg wet<0.0010 0.0010 Chloroethane 0.010 mg/Kg wet<0.0019 0.0019 Chloroform 0.0050 mg/Kg wet<0.00062 0.00062 1,2-Dibromo-3-chloropropane 0.0050 mg/Kg wet<0.0020 0.0020 1,2-Dibromoethane 0.0050 mg/Kg wet<0.0014 0.0014 1,1-Dichloroethane 0.0050 mg/Kg wet<0.0011 0.0011 1,2-Dichloroethane 0.0050 mg/Kg wet<0.0016 0.0016 1,1-Dichloroethene 0.0050 mg/Kg wet<0.0012 0.0012 cis-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.00071 0.00071 trans-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.00098 0.00098 cis & trans-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.0015 0.0015 1,2-Dichloropropane 0.0050 mg/Kg wet<0.0012 0.0012 cis-1,3-Dichloropropylene 0.0050 mg/Kg wet<0.00052 0.00052 trans-1,3-Dichloropropylene 0.0050 mg/Kg wet<0.0012 0.0012 Ethylbenzene 0.0050 mg/Kg wet<0.00092 0.00092 2-Hexanone 0.0050 mg/Kg wet<0.0022 0.0022 Methyl bromide 0.010 mg/Kg wet<0.0015 0.0015 Methyl chloride 0.010 mg/Kg wet<0.0011 0.0011 Methyl tert-butyl ether 0.0050 mg/Kg wet<0.0018 0.0018 4-Methyl-2-pentanone 0.0050 mg/Kg wet<0.0021 0.0021 Methylene chloride 0.020 Jmg/Kg wet0.0071 0.0020 1-Methylnaphthalene 0.010 mg/Kg wet<0.010 0.010 2-Methylnaphthalene 0.010 Jmg/Kg wet0.0020 0.00054 Naphthalene 0.010 mg/Kg wet<0.0020 0.0020 Styrene 0.0050 mg/Kg wet<0.00075 0.00075 1,1,1,2-Tetrachloroethane 0.010 mg/Kg wet<0.00081 0.00081 1,1,2,2-Tetrachloroethane 0.0050 mg/Kg wet<0.0013 0.0013 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 44 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B Blank (B289383-BLK1)Prepared & Analyzed: 04/12/2026 14:04 Tetrachloroethylene 0.0050 mg/Kg wet<0.0012 0.0012 Toluene 0.0050 mg/Kg wet<0.00078 0.00078 1,1,1-Trichloroethane 0.0050 mg/Kg wet<0.0011 0.0011 1,1,2-Trichloroethane 0.0050 mg/Kg wet<0.0013 0.0013 Trichloroethene 0.0050 mg/Kg wet<0.0013 0.0013 Trichlorofluoromethane 0.010 mg/Kg wet<0.0012 0.0012 1,2,4-Trimethylbenzene 0.0050 mg/Kg wet<0.00072 0.00072 1,3,5-Trimethylbenzene 0.0050 mg/Kg wet<0.00084 0.00084 Vinyl Acetate 0.010 mg/Kg wet<0.0021 0.0021 Vinyl chloride 0.010 mg/Kg wet<0.0013 0.0013 m&p-xylene 0.0050 mg/Kg wet<0.0018 0.0018 o-Xylene 0.0050 mg/Kg wet<0.00090 0.00090 Xylenes (total)0.0050 mg/Kg wet<0.0025 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 89.645ug/L 50 63.5-139Surrogate: Dibromofluoromethane 97.649ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 89.945ug/L 50 66.6-143Surrogate: Toluene-d8 99.450ug/L 50 LCS (B289383-BS1)Prepared & Analyzed: 04/12/2026 12:28 Acetone 0.050 J69.3-12179.8mg/Kg wet 0.0500.0399 0.0044 Acrylonitrile 0.10 S, J74-125128mg/Kg wet 0.0500.0642 0.027 Benzene 0.0050 76.3-126116mg/Kg wet 0.0500.0582 0.00085 Bromodichloromethane 0.0050 76.9-111104mg/Kg wet 0.0500.0522 0.00084 Bromoform 0.0050 70.3-126110mg/Kg wet 0.0500.0550 0.0016 2-Butanone 0.010 70.9-12994.1mg/Kg wet 0.0500.0471 0.0011 Carbon Disulfide 0.010 63-132100mg/Kg wet 0.0500.0501 0.0010 Carbon tetrachloride 0.0050 76.7-128126mg/Kg wet 0.0500.0628 0.0011 Chlorobenzene 0.0050 82.7-116116mg/Kg wet 0.0500.0582 0.00054 Chlorodibromomethane 0.0050 80-120115mg/Kg wet 0.0500.0575 0.0010 Chloroethane 0.010 48.2-144119mg/Kg wet 0.0500.0595 0.0019 Chloroform 0.0050 79.4-120114mg/Kg wet 0.0500.0572 0.00062 1,2-Dibromo-3-chloropropane 0.0050 54-12491.1mg/Kg wet 0.0500.0455 0.0020 1,2-Dibromoethane 0.0050 78-119105mg/Kg wet 0.0500.0524 0.0014 1,1-Dichloroethane 0.0050 76.8-116109mg/Kg wet 0.0500.0543 0.0011 1,2-Dichloroethane 0.0050 73.8-12095.6mg/Kg wet 0.0500.0478 0.0016 1,1-Dichloroethene 0.0050 S71.1-125126mg/Kg wet 0.0500.0630 0.0012 cis-1,2-Dichloroethylene 0.0050 75.5-125116mg/Kg wet 0.0500.0580 0.00071 trans-1,2-Dichloroethylene 0.0050 75.6-126121mg/Kg wet 0.0500.0604 0.00098 1,2-Dichloropropane 0.0050 77.9-121108mg/Kg wet 0.0500.0538 0.0012 cis-1,3-Dichloropropylene 0.0050 83-120106mg/Kg wet 0.0500.0530 0.00052 trans-1,3-Dichloropropylene 0.0050 77.2-121104mg/Kg wet 0.0500.0518 0.0012 Ethylbenzene 0.0050 84-121115mg/Kg wet 0.0500.0575 0.00092 2-Hexanone 0.0050 58.4-12890.4mg/Kg wet 0.0500.0452 0.0022 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 45 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B LCS (B289383-BS1)Prepared & Analyzed: 04/12/2026 12:28 Methyl bromide 0.010 30.2-136105mg/Kg wet 0.0500.0525 0.0015 Methyl chloride 0.010 55.1-11089.4mg/Kg wet 0.0500.0447 0.0011 Methyl tert-butyl ether 0.0050 71.4-11593.5mg/Kg wet 0.0500.0468 0.0018 4-Methyl-2-pentanone 0.0050 67.3-13687.9mg/Kg wet 0.0500.0439 0.0021 Methylene chloride 0.020 69.2-122101mg/Kg wet 0.0500.0506 0.0020 1-Methylnaphthalene 0.010 39.2-134110mg/Kg wet 0.0500.0552 0.010 2-Methylnaphthalene 0.010 38.7-158104mg/Kg wet 0.0500.0520 0.00054 Naphthalene 0.010 53.4-140107mg/Kg wet 0.0500.0536 0.0020 Styrene 0.0050 73-126116mg/Kg wet 0.0500.0582 0.00075 1,1,1,2-Tetrachloroethane 0.010 78.8-118116mg/Kg wet 0.0500.0578 0.00081 1,1,2,2-Tetrachloroethane 0.0050 62.5-12196.9mg/Kg wet 0.0500.0485 0.0013 Tetrachloroethylene 0.0050 S79.3-131134mg/Kg wet 0.0500.0671 0.0012 Toluene 0.0050 83.3-122114mg/Kg wet 0.0500.0568 0.00078 1,1,1-Trichloroethane 0.0050 79.4-127125mg/Kg wet 0.0500.0623 0.0011 1,1,2-Trichloroethane 0.0050 75.9-116104mg/Kg wet 0.0500.0518 0.0013 Trichloroethene 0.0050 76.7-126118mg/Kg wet 0.0500.0592 0.0013 Trichlorofluoromethane 0.010 73.7-116112mg/Kg wet 0.0500.0562 0.0012 1,2,4-Trimethylbenzene 0.0050 78.2-126121mg/Kg wet 0.0500.0607 0.00072 1,3,5-Trimethylbenzene 0.0050 81.9-131121mg/Kg wet 0.0500.0605 0.00084 Vinyl Acetate 0.010 71.8-11878.2mg/Kg wet 0.0500.0391 0.0021 Vinyl chloride 0.010 67.3-118107mg/Kg wet 0.0500.0534 0.0013 m&p-xylene 0.0050 86-126122mg/Kg wet 0.100.122 0.0018 o-Xylene 0.0050 80.6-125113mg/Kg wet 0.0500.0564 0.00090 Xylenes (total)0.0050 49.9-158119mg/Kg wet 0.150.179 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 95.648ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10553ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 89.745ug/L 50 66.6-143Surrogate: Toluene-d8 98.249ug/L 50 LCS Dup (B289383-BSD1)Prepared & Analyzed: 04/12/2026 13:05 Acetone 0.050 30 S, J69.3-12166.2 18.6mg/Kg wet 0.0500.0331 0.0044 Acrylonitrile 0.10 30 J74-125107 18.1mg/Kg wet 0.0500.0536 0.027 Benzene 0.0050 3076.3-126110 5.76mg/Kg wet 0.0500.0550 0.00085 Bromodichloromethane 0.0050 3076.9-11197.5 6.86mg/Kg wet 0.0500.0487 0.00084 Bromoform 0.0050 3070.3-126104 5.26mg/Kg wet 0.0500.0522 0.0016 2-Butanone 0.010 3070.9-12978.1 18.6mg/Kg wet 0.0500.0391 0.0011 Carbon Disulfide 0.010 3063-13295.3 5.01mg/Kg wet 0.0500.0476 0.0010 Carbon tetrachloride 0.0050 3076.7-128124 1.68mg/Kg wet 0.0500.0618 0.0011 Chlorobenzene 0.0050 3082.7-116113 3.27mg/Kg wet 0.0500.0563 0.00054 Chlorodibromomethane 0.0050 3080-120110 4.73mg/Kg wet 0.0500.0549 0.0010 Chloroethane 0.010 3048.2-144109 8.39mg/Kg wet 0.0500.0547 0.0019 Chloroform 0.0050 3079.4-120110 4.21mg/Kg wet 0.0500.0548 0.00062 1,2-Dibromo-3-chloropropane 0.0050 3054-12487.8 3.67mg/Kg wet 0.0500.0439 0.0020 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 46 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B LCS Dup (B289383-BSD1)Prepared & Analyzed: 04/12/2026 13:05 1,2-Dibromoethane 0.0050 3078-11999.3 5.37mg/Kg wet 0.0500.0496 0.0014 1,1-Dichloroethane 0.0050 3076.8-116104 4.27mg/Kg wet 0.0500.0520 0.0011 1,2-Dichloroethane 0.0050 3073.8-12090.5 5.50mg/Kg wet 0.0500.0452 0.0016 1,1-Dichloroethene 0.0050 3071.1-125123 2.44mg/Kg wet 0.0500.0615 0.0012 cis-1,2-Dichloroethylene 0.0050 3075.5-125112 3.58mg/Kg wet 0.0500.0559 0.00071 trans-1,2-Dichloroethylene 0.0050 3075.6-126118 2.75mg/Kg wet 0.0500.0588 0.00098 1,2-Dichloropropane 0.0050 3077.9-121102 5.62mg/Kg wet 0.0500.0509 0.0012 cis-1,3-Dichloropropylene 0.0050 3083-120101 4.42mg/Kg wet 0.0500.0507 0.00052 trans-1,3-Dichloropropylene 0.0050 3077.2-12197.9 5.69mg/Kg wet 0.0500.0490 0.0012 Ethylbenzene 0.0050 3084-121112 2.36mg/Kg wet 0.0500.0562 0.00092 2-Hexanone 0.0050 3058.4-12872.9 21.4mg/Kg wet 0.0500.0365 0.0022 Methyl bromide 0.010 3030.2-136105 0.362mg/Kg wet 0.0500.0523 0.0015 Methyl chloride 0.010 3055.1-11081.2 9.59mg/Kg wet 0.0500.0406 0.0011 Methyl tert-butyl ether 0.0050 3071.4-11589.0 4.93mg/Kg wet 0.0500.0445 0.0018 4-Methyl-2-pentanone 0.0050 3067.3-13672.7 18.9mg/Kg wet 0.0500.0363 0.0021 Methylene chloride 0.020 3069.2-12295.1 6.20mg/Kg wet 0.0500.0475 0.0020 1-Methylnaphthalene 0.010 3039.2-134103 6.75mg/Kg wet 0.0500.0516 0.010 2-Methylnaphthalene 0.010 3038.7-15897.5 6.49mg/Kg wet 0.0500.0488 0.00054 Naphthalene 0.010 3053.4-140101 5.90mg/Kg wet 0.0500.0505 0.0020 Styrene 0.0050 3073-126113 3.36mg/Kg wet 0.0500.0563 0.00075 1,1,1,2-Tetrachloroethane 0.010 3078.8-118112 3.40mg/Kg wet 0.0500.0558 0.00081 1,1,2,2-Tetrachloroethane 0.0050 3062.5-12190.9 6.43mg/Kg wet 0.0500.0454 0.0013 Tetrachloroethylene 0.0050 3079.3-131130 2.86mg/Kg wet 0.0500.0652 0.0012 Toluene 0.0050 3083.3-122111 2.68mg/Kg wet 0.0500.0553 0.00078 1,1,1-Trichloroethane 0.0050 3079.4-127120 3.96mg/Kg wet 0.0500.0599 0.0011 1,1,2-Trichloroethane 0.0050 3075.9-11699.3 4.22mg/Kg wet 0.0500.0497 0.0013 Trichloroethene 0.0050 3076.7-126117 1.46mg/Kg wet 0.0500.0584 0.0013 Trichlorofluoromethane 0.010 3073.7-116106 6.40mg/Kg wet 0.0500.0528 0.0012 1,2,4-Trimethylbenzene 0.0050 3078.2-126118 2.64mg/Kg wet 0.0500.0591 0.00072 1,3,5-Trimethylbenzene 0.0050 3081.9-131116 3.82mg/Kg wet 0.0500.0582 0.00084 Vinyl Acetate 0.010 30 S71.8-11870.3 10.6mg/Kg wet 0.0500.0352 0.0021 Vinyl chloride 0.010 3067.3-118102 4.40mg/Kg wet 0.0500.0511 0.0013 m&p-xylene 0.0050 3086-126119 2.60mg/Kg wet 0.100.119 0.0018 o-Xylene 0.0050 3080.6-125110 2.64mg/Kg wet 0.0500.0549 0.00090 Xylenes (total)0.0050 20049.9-158116 2.61mg/Kg wet 0.150.174 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 95.848ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10150ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 87.344ug/L 50 66.6-143Surrogate: Toluene-d8 98.849ug/L 50 Matrix Spike (B289383-MS1)Source: C6D0469-01 Prepared & Analyzed: 04/12/2026 14:52 Acetone 0.059 0.00649 J27.9-16150.4mg/Kg dry 0.0590.0361 0.0052 Acrylonitrile 0.12 ND J39.4-18698.5mg/Kg dry 0.0590.0578 0.031 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 47 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B Matrix Spike (B289383-MS1)Source: C6D0469-01 Prepared & Analyzed: 04/12/2026 14:52 Benzene 0.0059 ND 54.8-120107mg/Kg dry 0.0590.0628 0.0010 Bromodichloromethane 0.0059 ND 54.6-12298.1mg/Kg dry 0.0590.0576 0.00099 Bromoform 0.0059 ND 31-122106mg/Kg dry 0.0590.0621 0.0019 2-Butanone 0.012 ND 38.1-13873.5mg/Kg dry 0.0590.0431 0.0013 Carbon Disulfide 0.012 ND 16-17783.7mg/Kg dry 0.0590.0491 0.0012 Carbon tetrachloride 0.0059 ND 41.6-132115mg/Kg dry 0.0590.0677 0.0012 Chlorobenzene 0.0059 ND 36.8-129108mg/Kg dry 0.0590.0635 0.00063 Chlorodibromomethane 0.0059 ND 52.1-132109mg/Kg dry 0.0590.0639 0.0012 Chloroethane 0.012 ND 42.4-126104mg/Kg dry 0.0590.0613 0.0022 Chloroform 0.0059 ND 64-123108mg/Kg dry 0.0590.0635 0.00073 1,2-Dibromo-3-chloropropane 0.0059 ND 38.6-13986.3mg/Kg dry 0.0590.0507 0.0024 1,2-Dibromoethane 0.0059 ND 49.2-135101mg/Kg dry 0.0590.0596 0.0016 1,1-Dichloroethane 0.0059 ND 59-131102mg/Kg dry 0.0590.0597 0.0013 1,2-Dichloroethane 0.0059 ND 54.7-12695.6mg/Kg dry 0.0590.0561 0.0018 1,1-Dichloroethene 0.0059 ND 39.1-116113mg/Kg dry 0.0590.0666 0.0014 cis-1,2-Dichloroethylene 0.0059 ND 67-126108mg/Kg dry 0.0590.0632 0.00083 trans-1,2-Dichloroethylene 0.0059 0.00299 53.7-120107mg/Kg dry 0.0590.0657 0.0012 1,2-Dichloropropane 0.0059 ND 62.9-118102mg/Kg dry 0.0590.0597 0.0014 cis-1,3-Dichloropropylene 0.0059 ND 49.9-13997.6mg/Kg dry 0.0590.0573 0.00061 trans-1,3-Dichloropropylene 0.0059 ND 42-14897.3mg/Kg dry 0.0590.0571 0.0014 Ethylbenzene 0.0059 ND 33.4-133106mg/Kg dry 0.0590.0623 0.0011 2-Hexanone 0.0059 ND 34-14968.1mg/Kg dry 0.0590.0400 0.0026 Methyl bromide 0.012 ND 10.8-14294.8mg/Kg dry 0.0590.0556 0.0018 Methyl chloride 0.012 ND 45.3-14382.2mg/Kg dry 0.0590.0483 0.0013 Methyl tert-butyl ether 0.0059 ND 41.1-14485.9mg/Kg dry 0.0590.0504 0.0021 4-Methyl-2-pentanone 0.0059 ND 31.1-17569.8mg/Kg dry 0.0590.0410 0.0025 Methylene chloride 0.023 0.0122 53.8-12576.4mg/Kg dry 0.0590.0571 0.0024 1-Methylnaphthalene 0.012 ND 50-15094.3mg/Kg dry 0.0590.0554 0.012 2-Methylnaphthalene 0.012 ND 50-15083.0mg/Kg dry 0.0590.0487 0.00063 Naphthalene 0.012 ND 10-13595.2mg/Kg dry 0.0590.0559 0.0024 Styrene 0.0059 ND 16.9-131107mg/Kg dry 0.0590.0627 0.00088 1,1,1,2-Tetrachloroethane 0.012 ND 52.5-130108mg/Kg dry 0.0590.0636 0.00095 1,1,2,2-Tetrachloroethane 0.0059 ND 56-14693.7mg/Kg dry 0.0590.0550 0.0016 Tetrachloroethylene 0.0059 ND 43-135122mg/Kg dry 0.0590.0714 0.0014 Toluene 0.0059 0.00275 35.2-143103mg/Kg dry 0.0590.0634 0.00092 1,1,1-Trichloroethane 0.0059 ND 46.3-135114mg/Kg dry 0.0590.0668 0.0013 1,1,2-Trichloroethane 0.0059 ND 60.2-129100mg/Kg dry 0.0590.0590 0.0015 Trichloroethene 0.0059 ND 37.1-145109mg/Kg dry 0.0590.0641 0.0016 Trichlorofluoromethane 0.012 ND 40.5-14199.9mg/Kg dry 0.0590.0586 0.0014 1,2,4-Trimethylbenzene 0.0059 ND 15.7-149107mg/Kg dry 0.0590.0627 0.00085 1,3,5-Trimethylbenzene 0.0059 ND 10-138111mg/Kg dry 0.0590.0649 0.00099 Vinyl Acetate 0.012 ND 22.5-18462.5mg/Kg dry 0.0590.0367 0.0025 Vinyl chloride 0.012 ND 54.5-14392.2mg/Kg dry 0.0590.0541 0.0015 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 48 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B Matrix Spike (B289383-MS1)Source: C6D0469-01 Prepared & Analyzed: 04/12/2026 14:52 m&p-xylene 0.0059 ND 30.5-132112mg/Kg dry 0.120.132 0.0021 o-Xylene 0.0059 ND 38-123104mg/Kg dry 0.0590.0613 0.0011 Xylenes (total)0.0059 ND 17.1-165110mg/Kg dry 0.180.193 0.0030 57.4-135Surrogate: 4-Bromofluorobenzene 98.049ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10452ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 92.546ug/L 50 66.6-143Surrogate: Toluene-d8 99.050ug/L 50 Matrix Spike Dup (B289383-MSD1)Source: C6D0469-01 Prepared & Analyzed: 04/12/2026 15:15 Acetone 0.057 0.00649 30 J27.9-16154.2 3.70mg/Kg dry 0.0570.0375 0.0050 Acrylonitrile 0.11 ND 30 J39.4-186102 1.26mg/Kg dry 0.0570.0586 0.030 Benzene 0.0057 ND 3054.8-120106 3.54mg/Kg dry 0.0570.0606 0.00097 Bromodichloromethane 0.0057 ND 3054.6-12298.1 2.58mg/Kg dry 0.0570.0561 0.00096 Bromoform 0.0057 ND 3031-122105 3.30mg/Kg dry 0.0570.0601 0.0018 2-Butanone 0.011 ND 3038.1-13872.9 3.37mg/Kg dry 0.0570.0417 0.0013 Carbon Disulfide 0.011 ND 3016-17786.5 0.690mg/Kg dry 0.0570.0494 0.0012 Carbon tetrachloride 0.0057 ND 3041.6-132112 5.29mg/Kg dry 0.0570.0642 0.0012 Chlorobenzene 0.0057 ND 3036.8-129106 4.53mg/Kg dry 0.0570.0607 0.00062 Chlorodibromomethane 0.0057 ND 3052.1-132108 3.67mg/Kg dry 0.0570.0616 0.0011 Chloroethane 0.011 ND 3042.4-126105 2.43mg/Kg dry 0.0570.0598 0.0022 Chloroform 0.0057 ND 3064-123107 4.02mg/Kg dry 0.0570.0610 0.00071 1,2-Dibromo-3-chloropropane 0.0057 ND 3038.6-13989.2 0.658mg/Kg dry 0.0570.0510 0.0023 1,2-Dibromoethane 0.0057 ND 3049.2-13599.3 4.79mg/Kg dry 0.0570.0568 0.0016 1,1-Dichloroethane 0.0057 ND 3059-13198.8 5.43mg/Kg dry 0.0570.0565 0.0013 1,2-Dichloroethane 0.0057 ND 3054.7-12693.5 4.89mg/Kg dry 0.0570.0535 0.0018 1,1-Dichloroethene 0.0057 ND 3039.1-116112 3.51mg/Kg dry 0.0570.0643 0.0014 cis-1,2-Dichloroethylene 0.0057 ND 3067-126108 2.18mg/Kg dry 0.0570.0618 0.00081 trans-1,2-Dichloroethylene 0.0057 0.00299 3053.7-120106 3.48mg/Kg dry 0.0570.0634 0.0011 1,2-Dichloropropane 0.0057 ND 3062.9-118101 3.35mg/Kg dry 0.0570.0577 0.0013 cis-1,3-Dichloropropylene 0.0057 ND 3049.9-13996.4 3.80mg/Kg dry 0.0570.0551 0.00059 trans-1,3-Dichloropropylene 0.0057 ND 3042-14896.5 3.45mg/Kg dry 0.0570.0552 0.0013 Ethylbenzene 0.0057 ND 3033.4-133104 5.16mg/Kg dry 0.0570.0592 0.0011 2-Hexanone 0.0057 ND 3034-14968.0 2.66mg/Kg dry 0.0570.0389 0.0025 Methyl bromide 0.011 ND 3010.8-14295.4 1.97mg/Kg dry 0.0570.0546 0.0017 Methyl chloride 0.011 ND 3045.3-14372.9 14.6mg/Kg dry 0.0570.0417 0.0013 Methyl tert-butyl ether 0.0057 ND 3041.1-14490.9 3.10mg/Kg dry 0.0570.0520 0.0021 4-Methyl-2-pentanone 0.0057 ND 3031.1-17567.9 5.48mg/Kg dry 0.0570.0388 0.0024 Methylene chloride 0.023 0.0122 3053.8-12575.8 2.73mg/Kg dry 0.0570.0555 0.0023 1-Methylnaphthalene 0.011 ND 3050-150101 4.14mg/Kg dry 0.0570.0577 0.011 2-Methylnaphthalene 0.011 ND 3050-15090.1 5.65mg/Kg dry 0.0570.0515 0.00062 Naphthalene 0.011 ND 3010-135100 2.62mg/Kg dry 0.0570.0573 0.0023 Styrene 0.0057 ND 3016.9-131105 4.45mg/Kg dry 0.0570.0600 0.00086 1,1,1,2-Tetrachloroethane 0.011 ND 3052.5-130105 5.62mg/Kg dry 0.0570.0602 0.00093 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 49 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289383 - 8260_PR - EPA 8260B Matrix Spike Dup (B289383-MSD1)Source: C6D0469-01 Prepared & Analyzed: 04/12/2026 15:15 1,1,2,2-Tetrachloroethane 0.0057 ND 3056-14694.1 2.18mg/Kg dry 0.0570.0538 0.0015 Tetrachloroethylene 0.0057 ND 3043-135117 6.12mg/Kg dry 0.0570.0671 0.0013 Toluene 0.0057 0.00275 3035.2-14399.8 5.76mg/Kg dry 0.0570.0598 0.00089 1,1,1-Trichloroethane 0.0057 ND 3046.3-135112 3.91mg/Kg dry 0.0570.0643 0.0012 1,1,2-Trichloroethane 0.0057 ND 3060.2-12998.7 4.39mg/Kg dry 0.0570.0564 0.0014 Trichloroethene 0.0057 ND 3037.1-145109 3.12mg/Kg dry 0.0570.0621 0.0015 Trichlorofluoromethane 0.011 ND 3040.5-14192.6 10.2mg/Kg dry 0.0570.0529 0.0013 1,2,4-Trimethylbenzene 0.0057 ND 3015.7-149107 2.43mg/Kg dry 0.0570.0612 0.00082 1,3,5-Trimethylbenzene 0.0057 ND 3010-138109 4.26mg/Kg dry 0.0570.0622 0.00096 Vinyl Acetate 0.011 ND 3022.5-18462.4 2.83mg/Kg dry 0.0570.0357 0.0024 Vinyl chloride 0.011 ND 3054.5-14388.9 6.27mg/Kg dry 0.0570.0508 0.0015 m&p-xylene 0.0057 ND 3030.5-132111 4.19mg/Kg dry 0.110.127 0.0020 o-Xylene 0.0057 ND 3038-123102 4.61mg/Kg dry 0.0570.0585 0.0010 Xylenes (total)0.0057 ND 20017.1-165108 4.32mg/Kg dry 0.170.185 0.0029 57.4-135Surrogate: 4-Bromofluorobenzene 97.349ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10251ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 92.946ug/L 50 66.6-143Surrogate: Toluene-d8 97.649ug/L 50 Batch B289447 - 8260_PR - EPA 8260B Blank (B289447-BLK1)Prepared & Analyzed: 04/13/2026 12:48 Acetone 0.050 mg/Kg wet<0.0044 0.0044 Acrylonitrile 0.10 mg/Kg wet<0.027 0.027 Benzene 0.0050 mg/Kg wet<0.00085 0.00085 Bromodichloromethane 0.0050 mg/Kg wet<0.00084 0.00084 Bromoform 0.0050 mg/Kg wet<0.0016 0.0016 2-Butanone 0.010 mg/Kg wet<0.0011 0.0011 Carbon Disulfide 0.010 mg/Kg wet<0.0010 0.0010 Carbon tetrachloride 0.0050 mg/Kg wet<0.0011 0.0011 Chlorobenzene 0.0050 mg/Kg wet<0.00054 0.00054 Chlorodibromomethane 0.0050 mg/Kg wet<0.0010 0.0010 Chloroethane 0.010 mg/Kg wet<0.0019 0.0019 Chloroform 0.0050 mg/Kg wet<0.00062 0.00062 1,2-Dibromo-3-chloropropane 0.0050 mg/Kg wet<0.0020 0.0020 1,2-Dibromoethane 0.0050 mg/Kg wet<0.0014 0.0014 1,1-Dichloroethane 0.0050 mg/Kg wet<0.0011 0.0011 1,2-Dichloroethane 0.0050 mg/Kg wet<0.0016 0.0016 1,1-Dichloroethene 0.0050 mg/Kg wet<0.0012 0.0012 cis-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.00071 0.00071 trans-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.00098 0.00098 cis & trans-1,2-Dichloroethylene 0.0050 mg/Kg wet<0.0015 0.0015 1,2-Dichloropropane 0.0050 mg/Kg wet<0.0012 0.0012 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 50 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289447 - 8260_PR - EPA 8260B Blank (B289447-BLK1)Prepared & Analyzed: 04/13/2026 12:48 cis-1,3-Dichloropropylene 0.0050 mg/Kg wet<0.00052 0.00052 trans-1,3-Dichloropropylene 0.0050 mg/Kg wet<0.0012 0.0012 Ethylbenzene 0.0050 mg/Kg wet<0.00092 0.00092 2-Hexanone 0.0050 mg/Kg wet<0.0022 0.0022 Methyl bromide 0.010 mg/Kg wet<0.0015 0.0015 Methyl chloride 0.010 mg/Kg wet<0.0011 0.0011 Methyl tert-butyl ether 0.0050 mg/Kg wet<0.0018 0.0018 4-Methyl-2-pentanone 0.0050 mg/Kg wet<0.0021 0.0021 Methylene chloride 0.020 mg/Kg wet<0.0020 0.0020 1-Methylnaphthalene 0.010 mg/Kg wet<0.010 0.010 2-Methylnaphthalene 0.010 Jmg/Kg wet0.0014 0.00054 Naphthalene 0.010 mg/Kg wet<0.0020 0.0020 Styrene 0.0050 mg/Kg wet<0.00075 0.00075 1,1,1,2-Tetrachloroethane 0.010 mg/Kg wet<0.00081 0.00081 1,1,2,2-Tetrachloroethane 0.0050 mg/Kg wet<0.0013 0.0013 Tetrachloroethylene 0.0050 mg/Kg wet<0.0012 0.0012 Toluene 0.0050 mg/Kg wet<0.00078 0.00078 1,1,1-Trichloroethane 0.0050 mg/Kg wet<0.0011 0.0011 1,1,2-Trichloroethane 0.0050 mg/Kg wet<0.0013 0.0013 Trichloroethene 0.0050 mg/Kg wet<0.0013 0.0013 Trichlorofluoromethane 0.010 mg/Kg wet<0.0012 0.0012 1,2,4-Trimethylbenzene 0.0050 mg/Kg wet<0.00072 0.00072 1,3,5-Trimethylbenzene 0.0050 mg/Kg wet<0.00084 0.00084 Vinyl Acetate 0.010 mg/Kg wet<0.0021 0.0021 Vinyl chloride 0.010 mg/Kg wet<0.0013 0.0013 m&p-xylene 0.0050 mg/Kg wet<0.0018 0.0018 o-Xylene 0.0050 mg/Kg wet<0.00090 0.00090 Xylenes (total)0.0050 mg/Kg wet<0.0025 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 91.546ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10050ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 99.850ug/L 50 66.6-143Surrogate: Toluene-d8 97.749ug/L 50 LCS (B289447-BS1)Prepared & Analyzed: 04/13/2026 11:41 Acetone 0.050 J69.3-12176.8mg/Kg wet 0.0500.0384 0.0044 Acrylonitrile 0.10 J74-125102mg/Kg wet 0.0500.0510 0.027 Benzene 0.0050 76.3-126112mg/Kg wet 0.0500.0562 0.00085 Bromodichloromethane 0.0050 76.9-111105mg/Kg wet 0.0500.0524 0.00084 Bromoform 0.0050 70.3-126107mg/Kg wet 0.0500.0537 0.0016 2-Butanone 0.010 70.9-12988.3mg/Kg wet 0.0500.0442 0.0011 Carbon Disulfide 0.010 63-13292.5mg/Kg wet 0.0500.0462 0.0010 Carbon tetrachloride 0.0050 76.7-128121mg/Kg wet 0.0500.0607 0.0011 Chlorobenzene 0.0050 82.7-116114mg/Kg wet 0.0500.0570 0.00054 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 51 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289447 - 8260_PR - EPA 8260B LCS (B289447-BS1)Prepared & Analyzed: 04/13/2026 11:41 Chlorodibromomethane 0.0050 80-120114mg/Kg wet 0.0500.0568 0.0010 Chloroethane 0.010 48.2-144108mg/Kg wet 0.0500.0540 0.0019 Chloroform 0.0050 79.4-120115mg/Kg wet 0.0500.0573 0.00062 1,2-Dibromo-3-chloropropane 0.0050 54-12495.3mg/Kg wet 0.0500.0476 0.0020 1,2-Dibromoethane 0.0050 78-119104mg/Kg wet 0.0500.0522 0.0014 1,1-Dichloroethane 0.0050 76.8-116109mg/Kg wet 0.0500.0546 0.0011 1,2-Dichloroethane 0.0050 73.8-120104mg/Kg wet 0.0500.0520 0.0016 1,1-Dichloroethene 0.0050 71.1-125120mg/Kg wet 0.0500.0598 0.0012 cis-1,2-Dichloroethylene 0.0050 75.5-125112mg/Kg wet 0.0500.0562 0.00071 trans-1,2-Dichloroethylene 0.0050 75.6-126115mg/Kg wet 0.0500.0575 0.00098 1,2-Dichloropropane 0.0050 77.9-121108mg/Kg wet 0.0500.0541 0.0012 cis-1,3-Dichloropropylene 0.0050 83-120108mg/Kg wet 0.0500.0538 0.00052 trans-1,3-Dichloropropylene 0.0050 77.2-121107mg/Kg wet 0.0500.0535 0.0012 Ethylbenzene 0.0050 84-121114mg/Kg wet 0.0500.0568 0.00092 2-Hexanone 0.0050 58.4-12884.3mg/Kg wet 0.0500.0422 0.0022 Methyl bromide 0.010 30.2-13689.3mg/Kg wet 0.0500.0446 0.0015 Methyl chloride 0.010 55.1-11074.8mg/Kg wet 0.0500.0374 0.0011 Methyl tert-butyl ether 0.0050 71.4-11598.1mg/Kg wet 0.0500.0490 0.0018 4-Methyl-2-pentanone 0.0050 67.3-13682.8mg/Kg wet 0.0500.0414 0.0021 Methylene chloride 0.020 69.2-12291.5mg/Kg wet 0.0500.0457 0.0020 1-Methylnaphthalene 0.010 39.2-134103mg/Kg wet 0.0500.0515 0.010 2-Methylnaphthalene 0.010 38.7-15894.1mg/Kg wet 0.0500.0470 0.00054 Naphthalene 0.010 53.4-140101mg/Kg wet 0.0500.0507 0.0020 Styrene 0.0050 73-126114mg/Kg wet 0.0500.0569 0.00075 1,1,1,2-Tetrachloroethane 0.010 78.8-118112mg/Kg wet 0.0500.0560 0.00081 1,1,2,2-Tetrachloroethane 0.0050 62.5-121100mg/Kg wet 0.0500.0502 0.0013 Tetrachloroethylene 0.0050 79.3-131125mg/Kg wet 0.0500.0626 0.0012 Toluene 0.0050 83.3-122111mg/Kg wet 0.0500.0557 0.00078 1,1,1-Trichloroethane 0.0050 79.4-127119mg/Kg wet 0.0500.0596 0.0011 1,1,2-Trichloroethane 0.0050 75.9-116106mg/Kg wet 0.0500.0528 0.0013 Trichloroethene 0.0050 76.7-126115mg/Kg wet 0.0500.0573 0.0013 Trichlorofluoromethane 0.010 73.7-116107mg/Kg wet 0.0500.0537 0.0012 1,2,4-Trimethylbenzene 0.0050 78.2-126119mg/Kg wet 0.0500.0594 0.00072 1,3,5-Trimethylbenzene 0.0050 81.9-131117mg/Kg wet 0.0500.0584 0.00084 Vinyl Acetate 0.010 71.8-11880.7mg/Kg wet 0.0500.0404 0.0021 Vinyl chloride 0.010 67.3-118106mg/Kg wet 0.0500.0530 0.0013 m&p-xylene 0.0050 86-126118mg/Kg wet 0.100.118 0.0018 o-Xylene 0.0050 80.6-125111mg/Kg wet 0.0500.0555 0.00090 Xylenes (total)0.0050 49.9-158116mg/Kg wet 0.150.174 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 97.749ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10351ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 94.847ug/L 50 66.6-143Surrogate: Toluene-d8 99.950ug/L 50 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 52 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289447 - 8260_PR - EPA 8260B LCS Dup (B289447-BSD1)Prepared & Analyzed: 04/13/2026 12:24 Acetone 0.050 30 S, J69.3-12167.7 12.5mg/Kg wet 0.0500.0338 0.0044 Acrylonitrile 0.10 30 J74-12594.3 7.80mg/Kg wet 0.0500.0472 0.027 Benzene 0.0050 3076.3-126110 1.96mg/Kg wet 0.0500.0552 0.00085 Bromodichloromethane 0.0050 3076.9-111102 2.30mg/Kg wet 0.0500.0512 0.00084 Bromoform 0.0050 3070.3-126104 2.78mg/Kg wet 0.0500.0522 0.0016 2-Butanone 0.010 3070.9-12982.8 6.40mg/Kg wet 0.0500.0414 0.0011 Carbon Disulfide 0.010 3063-13289.8 3.01mg/Kg wet 0.0500.0449 0.0010 Carbon tetrachloride 0.0050 3076.7-128117 3.74mg/Kg wet 0.0500.0584 0.0011 Chlorobenzene 0.0050 3082.7-116111 2.83mg/Kg wet 0.0500.0554 0.00054 Chlorodibromomethane 0.0050 3080-120110 3.11mg/Kg wet 0.0500.0551 0.0010 Chloroethane 0.010 3048.2-144105 2.42mg/Kg wet 0.0500.0527 0.0019 Chloroform 0.0050 3079.4-120113 1.16mg/Kg wet 0.0500.0566 0.00062 1,2-Dibromo-3-chloropropane 0.0050 3054-12491.4 4.11mg/Kg wet 0.0500.0457 0.0020 1,2-Dibromoethane 0.0050 3078-119104 0.423mg/Kg wet 0.0500.0520 0.0014 1,1-Dichloroethane 0.0050 3076.8-116107 1.64mg/Kg wet 0.0500.0537 0.0011 1,2-Dichloroethane 0.0050 3073.8-120103 1.02mg/Kg wet 0.0500.0514 0.0016 1,1-Dichloroethene 0.0050 3071.1-125116 2.83mg/Kg wet 0.0500.0581 0.0012 cis-1,2-Dichloroethylene 0.0050 3075.5-125111 1.06mg/Kg wet 0.0500.0556 0.00071 trans-1,2-Dichloroethylene 0.0050 3075.6-126113 1.44mg/Kg wet 0.0500.0567 0.00098 1,2-Dichloropropane 0.0050 3077.9-121106 2.15mg/Kg wet 0.0500.0530 0.0012 cis-1,3-Dichloropropylene 0.0050 3083-120106 1.29mg/Kg wet 0.0500.0531 0.00052 trans-1,3-Dichloropropylene 0.0050 3077.2-121105 1.95mg/Kg wet 0.0500.0524 0.0012 Ethylbenzene 0.0050 3084-121110 3.33mg/Kg wet 0.0500.0550 0.00092 2-Hexanone 0.0050 3058.4-12878.1 7.61mg/Kg wet 0.0500.0391 0.0022 Methyl bromide 0.010 3030.2-136101 12.3mg/Kg wet 0.0500.0505 0.0015 Methyl chloride 0.010 3055.1-11068.1 9.32mg/Kg wet 0.0500.0341 0.0011 Methyl tert-butyl ether 0.0050 3071.4-11595.2 3.02mg/Kg wet 0.0500.0476 0.0018 4-Methyl-2-pentanone 0.0050 3067.3-13676.0 8.59mg/Kg wet 0.0500.0380 0.0021 Methylene chloride 0.020 3069.2-12289.6 2.03mg/Kg wet 0.0500.0448 0.0020 1-Methylnaphthalene 0.010 3039.2-134100 2.99mg/Kg wet 0.0500.0500 0.010 2-Methylnaphthalene 0.010 3038.7-15888.3 6.34mg/Kg wet 0.0500.0442 0.00054 Naphthalene 0.010 3053.4-140101 0.574mg/Kg wet 0.0500.0504 0.0020 Styrene 0.0050 3073-126110 3.20mg/Kg wet 0.0500.0551 0.00075 1,1,1,2-Tetrachloroethane 0.010 3078.8-118110 1.66mg/Kg wet 0.0500.0551 0.00081 1,1,2,2-Tetrachloroethane 0.0050 3062.5-12198.2 2.10mg/Kg wet 0.0500.0491 0.0013 Tetrachloroethylene 0.0050 3079.3-131121 3.54mg/Kg wet 0.0500.0604 0.0012 Toluene 0.0050 3083.3-122109 1.99mg/Kg wet 0.0500.0546 0.00078 1,1,1-Trichloroethane 0.0050 3079.4-127118 0.877mg/Kg wet 0.0500.0590 0.0011 1,1,2-Trichloroethane 0.0050 3075.9-116104 2.01mg/Kg wet 0.0500.0518 0.0013 Trichloroethene 0.0050 3076.7-126113 1.60mg/Kg wet 0.0500.0564 0.0013 Trichlorofluoromethane 0.010 3073.7-116104 3.58mg/Kg wet 0.0500.0518 0.0012 1,2,4-Trimethylbenzene 0.0050 3078.2-126118 0.371mg/Kg wet 0.0500.0592 0.00072 1,3,5-Trimethylbenzene 0.0050 3081.9-131113 3.42mg/Kg wet 0.0500.0564 0.00084 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 53 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Volatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289447 - 8260_PR - EPA 8260B LCS Dup (B289447-BSD1)Prepared & Analyzed: 04/13/2026 12:24 Vinyl Acetate 0.010 3071.8-11879.0 2.15mg/Kg wet 0.0500.0395 0.0021 Vinyl chloride 0.010 3067.3-118102 4.14mg/Kg wet 0.0500.0508 0.0013 m&p-xylene 0.0050 3086-126116 2.39mg/Kg wet 0.100.116 0.0018 o-Xylene 0.0050 3080.6-125107 3.48mg/Kg wet 0.0500.0536 0.00090 Xylenes (total)0.0050 20049.9-158113 2.73mg/Kg wet 0.150.169 0.0025 57.4-135Surrogate: 4-Bromofluorobenzene 98.049ug/L 50 63.5-139Surrogate: Dibromofluoromethane 10352ug/L 50 51.7-162Surrogate: 1,2-Dichloroethane-d4 95.248ug/L 50 66.6-143Surrogate: Toluene-d8 99.650ug/L 50 Semivolatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289189 - 3550_B - EPA 8270C Blank (B289189-BLK1)Prepared: 04/09/2026 09:44 Analyzed: 04/09/2026 18:25 Acenaphthene 0.033 mg/Kg wet<0.020 0.020 Acenaphthylene 0.033 mg/Kg wet<0.021 0.021 Anthracene 0.033 mg/Kg wet<0.015 0.015 Benzo(a)anthracene 0.033 mg/Kg wet<0.011 0.011 Benzo(a)pyrene 0.033 mg/Kg wet<0.012 0.012 Benzo(b)fluoranthene 0.033 mg/Kg wet<0.014 0.014 Benzo(g,h,i)perylene 0.033 mg/Kg wet<0.011 0.011 Benzo(k)fluoranthene 0.033 mg/Kg wet<0.028 0.028 Chrysene 0.033 mg/Kg wet<0.012 0.012 Dibenz(a,h)anthracene 0.033 mg/Kg wet<0.016 0.016 Fluoranthene 0.033 mg/Kg wet<0.013 0.013 Fluorene 0.033 mg/Kg wet<0.018 0.018 Indeno(1,2,3-cd) pyrene 0.033 mg/Kg wet<0.0095 0.0095 Naphthalene 0.033 mg/Kg wet<0.022 0.022 Phenanthrene 0.033 mg/Kg wet<0.013 0.013 Pyrene 0.033 mg/Kg wet<0.013 0.013 1-Methylnaphthalene 0.033 mg/Kg wet<0.033 0.033 2-Methylnaphthalene 0.033 mg/Kg wet<0.023 0.023 28.1-110Surrogate: 2-Fluorobiphenyl 73.72.5 mg/Kg wet 3.3 33.6-110Surrogate: Nitrobenzene-d5 70.12.3 mg/Kg wet 3.3 35.8-121Surrogate: p-Terphenyl-d14 78.42.6 mg/Kg wet 3.3 LCS (B289189-BS1)Prepared: 04/09/2026 09:44 Analyzed: 04/09/2026 18:50 Acenaphthene 0.033 42.1-11079.0mg/Kg wet 3.32.63 0.020 Benzo(g,h,i)perylene 0.033 50-15087.4mg/Kg wet 3.32.91 0.011 Benzo(k)fluoranthene 0.033 28-144103mg/Kg wet 3.33.43 0.028 Dibenz(a,h)anthracene 0.033 26-17593.9mg/Kg wet 3.33.13 0.016 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 54 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Semivolatile Organic Compounds by GCMS Units Notes LimitRPDLimits%RECResultLevelRLResult RPD%RECSourceSpike MDL Batch B289189 - 3550_B - EPA 8270C LCS (B289189-BS1)Prepared: 04/09/2026 09:44 Analyzed: 04/09/2026 18:50 Indeno(1,2,3-cd) pyrene 0.033 50-15091.8mg/Kg wet 3.33.06 0.0095 Pyrene 0.033 44.3-11675.7mg/Kg wet 3.32.52 0.013 28.1-110Surrogate: 2-Fluorobiphenyl 75.42.5 mg/Kg wet 3.3 33.6-110Surrogate: Nitrobenzene-d5 69.22.3 mg/Kg wet 3.3 35.8-121Surrogate: p-Terphenyl-d14 78.12.6 mg/Kg wet 3.3 LCS Dup (B289189-BSD1)Prepared: 04/09/2026 09:44 Analyzed: 04/09/2026 19:14 Acenaphthene 0.033 3042.1-11074.3 6.09mg/Kg wet 3.32.48 0.020 Benzo(g,h,i)perylene 0.033 3050-15083.2 4.98mg/Kg wet 3.32.77 0.011 Benzo(k)fluoranthene 0.033 3028-14498.8 4.04mg/Kg wet 3.33.29 0.028 Dibenz(a,h)anthracene 0.033 3026-17586.7 8.00mg/Kg wet 3.32.89 0.016 Indeno(1,2,3-cd) pyrene 0.033 3050-15088.0 4.26mg/Kg wet 3.32.93 0.0095 Pyrene 0.033 3044.3-11681.5 7.35mg/Kg wet 3.32.72 0.013 28.1-110Surrogate: 2-Fluorobiphenyl 69.02.3 mg/Kg wet 3.3 33.6-110Surrogate: Nitrobenzene-d5 67.32.2 mg/Kg wet 3.3 35.8-121Surrogate: p-Terphenyl-d14 81.82.7 mg/Kg wet 3.3 Definitions % (by wt.):Percent by Weight B:The target analyte was detected in the blank at or above the method acceptance criteria. I1:Internal standard was below quality control acceptance limits. J:Estimated value. The analyte concentration is less than the reporting/quantitation limit. M1:Matrix spike recovery is above acceptance limits. M2:Matrix spike recovery is below acceptance limits. MDL:Minimum Detection Limit Q:One or more quality control criteria failed. Q10:The recovery for the low level check standard was outside of the quality control range Q12:Analysis of acrolein and/or acrylonitrile was performed from a sample that was field preserved to pH < 2, which is less than the pH range of 4-5 specified in the test method and required for NPDES compliance per 40CFR Part 136. R1:Duplicate RPD is outside acceptance criteria. RL:Reporting Limit RPD:Relative Percent Difference S:Spike recovery outside of acceptance limits. ug/L:Micrograms per Liter ug/mL:Micrograms per Milliliter Cooler Receipt Log [TOC_1]Cooler Receipt[TOC] Cooler ID:Default Cooler Temp: 2.2 ”C 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 55 of 58 C6D0475 CERTIFICATE OF ANALYSIS Microbac Laboratories, Inc. - Chicagoland Cooler Inspection Checklist Ice Present or not required?Yes Shipping containers sealed or not required?Yes Custody seals intact or not required?Yes Chain of Custody (COC) Present?Yes COC includes customer information?Yes Relinquished and received signature on COC?Yes Sample collector identified on COC?Yes Sample type identified on COC?Yes Correct type of Containers Received Yes Correct number of containers listed on COC?Yes Containers Intact?Yes COC includes requested analyses?Yes Enough sample volume for indicated tests received?Yes Sample labels match COC (Name, Date & Time?)Yes Samples arrived within hold time?Yes Correct preservatives on COC or not required?Yes Chemical preservations checked or not required?Yes Preservation checks meet method requirements?Yes VOA vials have zero headspace, or not recd.?Yes Report Comments Reviewed and Approved By: Kristen Ramirez Senior Project Manager Reported: 04/15/2026 14:07 The data and information on this, and other accompanying documents, represents only the sample(s) analyzed. This report is incomplete unless all pages indicated in the footnote are present and an authorized signature is included. The services were provided under and subject to Microbac’s standard terms and conditions which can be located and reviewed at <https://www.microbac.com/standard-terms-conditions>. 250 West 84th Drive | Merrillville, IN 46410 | 219.769.8378 p | www.microbac.com Microbac Laboratories, Inc. - Chicagoland Page 56 of 58 Page 57 of 58 Page 58 of 58