REPORT OF GROUNDWATER SAMPLING & ANALYSES PEPSI PLACE WATER MAIN REPLACEMENT JACKSONVILLE, DUVAL COUNTY, FLORIDA ECS PROJECT NO.

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1 REPORT OF GROUNDWATER SAMPLING & ANALYSES PEPSI PLACE WATER MAIN REPLACEMENT JACKSONVILLE, DUVAL COUNTY, FLORIDA ECS PROJECT NO Prepared For: Construction & Engineering Services Consultants, Inc Baymeadows Road, Suite 100 Jacksonville, Florida Prepared By: Ellis & Associates, Inc Davis Creek Road Jacksonville, Florida January 18, 2018

2 January 18, 2018 Mr. Claro N. Magpantay, P.E. Construction & Engineering Services Consultants, Inc Baymeadows Road, Suite 100 Jacksonville, Florida Reference: Report of Groundwater Sampling & Analyses Pepsi Place Water Main Replacement Jacksonville, Duval County, Florida ECS Project Number 55:1558 Dear Mr. Magpantay: As authorized on December 6, 2017, ECS-Florida, LLC has completed groundwater sampling and analyses for the Pepsi Place Water Main Replacement project. ECS understands that dewatering will be required for the installation of one subsurface water main along Pepsi Place in Jacksonville, Florida. The testing was requested by the Construction & Engineering Services Consultants, Inc. to comply with the pre-2015 groundwater screening requirements of the Florida Department of Environmental Protection s (FDEP s) Generic Permit for the Discharge of Produced Groundwater from Any Non- Contaminated Site Activity. Our services included: Installation of one temporary monitoring well (TMW-1); Collection of water samples for field and laboratory analysis; and Review of analytical results and preparation of this report of our findings. The field and laboratory analyses results were compared to the FDEP s Screening Values for Surface Water Discharge to Fresh Waters described in the Florida Administrative Code (FAC) Chapter (2), Table 1. INVESTIGATION On December 19, 2017, ECS mobilized to the site to complete the referenced groundwater sampling for the Pepsi Place Water Main Replacement project. The site location is depicted on Figure 1, Attachment 1. The site is located south of the intersection of Bowden Road and Pepsi Place in Jacksonville, Duval County, Florida, with a latitude/longitude of N /W , zip code The property is located on the Arlington Quadrangle, Florida, USGS 7.5 Minute Topographic Map. Based on topographic maps, produced groundwater will apparently be discharged into the surrounding storm drains and eventually into Bennett Branch Davis Creek Rd., Jacksonville, FL T: F:

3 Pepsi Place Groundwater Sampling & Analyses One temporary monitoring well (TMW-1) was completed on December 19, 2017 at the location depicted on Figure 2, Attachment 1. Stainless-steel hand-auger equipment was decontaminated and utilized for the monitoring well installation. The hand auger was advanced to a depth of approximately 11.0 feet below land surface (bls). Groundwater was encountered at a depth of approximately 6.0 feet bls. One temporary monitoring well consisting of one 5-foot section of inch machine-slotted Schedule 40 two-inch diameter PVC well screen was installed into the boring. Clean silica sand was then placed in the annular space. The Temporary Monitoring Well Construction Details are included in Attachment 2. Prior to collecting the samples, approximately 5 well volumes of water were removed from the well. Sampling was conducted in accordance with ECS s Quality Assurance Manual, in accordance with FDEP Standard Operating Procedures. The groundwater samples collected from the temporary monitoring well were appropriately preserved and forwarded to an FDEP-approved laboratory for analysis. The groundwater samples were analyzed for benzene, toluene, ethylbenzene, total xylenes, methyl-tert-butyl ether (MTBE), naphthalene, total organic carbon (TOC), hardness, total recoverable mercury, hexavalent chromium, chromium, cadmium, copper, lead, and zinc, and field analysis of ph and turbidity. The turbidity and ph of the samples were determined in the field. FINDINGS/CONCLUSIONS The results of laboratory analyses for benzene, toluene, ethylbenzene, total xylenes, MTBE, naphthalene, TOC, hardness, total recoverable mercury, hexavalent chromium, chromium, cadmium, copper, lead, and zinc, and field analysis of ph and turbidity met the FDEP screening values for surface water discharge to fresh waters described in FAC Chapter (2), Table 1. In summary, the test results for all target analytes appear to meet the FDEP screening values. See Attachment 3 for a summary of analytical test results. Attachment 4 includes the analytical laboratory report and the field analytical documentation. EVALUATION OF CONTAMINANT SOURCES This investigation included a review of FDEP databases for contaminated sites. Two potential contaminant sources have been identified in the vicinity (within 500 feet) of the proposed construction area: Dixie Cleaners This former dry cleaning facility is located approximately 300 feet northwest of the proposed construction area. According to documents reviewed on the FDEP s Contaminant Locator Map database, the facility reported no contaminated groundwater monitoring wells, and no surrounding potable wells reported any dry cleaning solvent impacts in the most recent well survey. Based on the lack of reported groundwater impacts, as well as the results of our most recent 2018 groundwater sampling event, in ECS s opinion, the Dixie Cleaners facility is not a likely threat to the dewatering operations at the subject site. Circle K Bowden This gas station facility is located approximately 450 feet northwest of the proposed construction area. According to documents reviewed on the FDEP s Contaminant Locator Map database, the facility reported petroleum-impacted groundwater in one or more groundwater monitoring wells, with monitoring wells between the groundwater plume and the subject site exhibiting no parameters exceeding their respective groundwater cleanup target levels. Groundwater flow at the facility has been reported to be towards the east, cross-gradient to the subject site. Based on the monitoring wells between the impacted groundwater plume and the subject site historically being free of contamination, as well as the Page 2 of 4

4 Pepsi Place Groundwater Sampling & Analyses results of our most recent 2018 groundwater sampling event, in ECS s opinion, Circle K Bowden facility is not a likely threat to the dewatering operations at the subject site. Ellis & Associates, Inc. appreciates this opportunity to be of service to the Construction & Engineering Services Consultants, Inc. If you have any questions or require further information, please contact the undersigned at (904) Sincerely, ELLIS & ASSOCIATES, INC. Thomas Borchert Project Scientist Andrew T. Benoit, P.G. Senior Project Geologist Attachments: 1) Figures 2) Temporary Monitoring Well Construction Details 3) Table 1 Groundwater Analytical Summary 4) Analytical Laboratory Report Page 3 of 4

5 Pepsi Place Groundwater Sampling & Analyses ATTACHMENT 1 Figure 1 Site Vicinity/Topographic Map Figure 2 Site Plan

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8 Pepsi Place Groundwater Sampling & Analyses ATTACHMENT 2 Temporary Monitoring Well Construction Details

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10 Pepsi Place Groundwater Sampling & Analyses ATTACHMENT 3 Table 1 Groundwater Analytical Summary

11 Well No., Method, Unit Table 1 Groundwater Analytical Summary Pepsi Place Watermain Replacement ECS Project Number 55:1558 TMW-1 Sampling Date 12/19/2017 FDEP Screening Values For Discharges Into Fresh Waters: (Table 1, Chapter (2) F.A.C.) Benzene, 8260, (μg/l) 0.10 U <71.28 Toluene, 8260, (μg/l) 0.50 U 480 Ethylbenzene, 8260, (μg/l) 0.50 U 610 Total Xylenes, 8260, (μg/l) 1.5 U 370 Methyl-tert-butyl ether, 8260, (μg/l) 0.50 U 34,000 Naphthalene, 610, (μg/l) 0.50 U 26 Total Organic Carbon, 415.1, (mg/l) Hexavalent Chromium, SM3500CrD, (μg/l) U 11 Chromium, 200.7, (μg/l) 2.5 U 11 Cadmium, 200.7, (μg/l) 0.50 U NL Copper, 200.7, (μg/l) 2.5 U NL Lead, 200.7, (μg/l) 5.0 U NL Mercury, 1631, (ng/l) Zinc, 200.7, (μg/l) 10.0 U NL Hardness, 130.2, (mg/l) 147 NL ph, (field), Standard Notes: FDEP - Florida Department of Environmental Protection TMW - Temporary Monitoring Well F.A.C. - Florida Administrative Code mg/l - Milligrams per Liter μg/l - Micrograms per Liter NL - Not Listed NA - Not Analyzed NTU - Nephelometric Turbidity Unit U - analyte not detected above laboratory method detection limit I - result between laboratory method detection limit and laboratory practical quantitation limit Bolded entries indicate an exceedance of an FDEP Screening Value

12 Pepsi Place Groundwater Sampling & Analyses ATTACHMENT 4 Analytical Laboratory Report

13 #=CL# LI USE: FR - TOM BORCHERT LI OBJECT ID: January 03, 2018 Tom Borchert Ellis & Associates, Inc Davis Creek Rd Jacksonville, FL RE: Project: Pepsi Water Main Pace Project No.: Dear Tom Borchert: Enclosed are the analytical results for sample(s) received by the laboratory on December 19, The results relate only to the samples included in this report. s reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Tommy Carr tommy.carr@pacelabs.com (386) Project Manager Enclosures Page 1 of 17

14 #=CP# CERTIFICATIONS Project: Pace Project No.: Pepsi Water Main Ormond Beach Certification IDs, Alabama Certification #: Connecticut Certification #: PH-0216 Delaware Certification: FL NELAC Reciprocity Florida Certification #: E83079 Georgia Certification #: 955 Guam Certification: FL NELAC Reciprocity Hawaii Certification: FL NELAC Reciprocity Illinois Certification #: Indiana Certification: FL NELAC Reciprocity Kansas Certification #: E Louisiana Certification #: FL NELAC Reciprocity Louisiana Environmental Certificate #: Maryland Certification: #346 Michigan Certification #: 9911 Mississippi Certification: FL NELAC Reciprocity Missouri Certification #: 236 Montana Certification #: Cert 0074 Tampa Certification IDs 110 South Bayview Blvd., Tampa, FL Florida Certification #:E84129 Alabama Certification #: Georgia Certification #: 949 Nebraska Certification: NE-OS Nevada Certification: FL NELAC Reciprocity New Jersey Certification #: FL022 New York Certification #: North Carolina Environmental Certificate #: 667 North Carolina Certification #: Oklahoma Certification #: D9947 Pennsylvania Certification #: Puerto Rico Certification #: FL01264 South Carolina Certification: # Tennessee Certification #: TN02974 Texas Certification: FL NELAC Reciprocity US Virgin Islands Certification: FL NELAC Reciprocity Virginia Environmental Certification #: Wyoming Certification: FL NELAC Reciprocity West Virginia Certification #: 9962C Wisconsin Certification #: Wyoming (EPA Region 8): FL NELAC Reciprocity Georgia Certification #: #949 Maine Certification #: Maine DHHS/CDC FL00237 New Hampshire Certification #: 2955 Page 2 of 17

15 #=SS# SAMPLE SUMMARY Project: Pace Project No.: Pepsi Water Main Lab ID Sample ID Matrix Date Collected Date Received TMW-1 Water 12/19/17 11:27 12/19/17 14:12 Page 3 of 17

16 #=SA# SAMPLE ANALYTE COUNT Project: Pace Project No.: Pepsi Water Main Lab ID Sample ID Method Analysts Analytes Reported Laboratory TMW-1 EPA SC1 6 PASI-O EPA 8260 SK1 11 PASI-O EPA 1631E NMT 1 PASI-Tp EPA KEK 1 PASI-O SM 5310B JMD 1 PASI-O Page 4 of 17

17 #=HO# SUMMARY OF DETECTION Project: Pace Project No.: Pepsi Water Main Lab Sample ID Method Client Sample ID s Report Limit Analyzed TMW-1 EPA Tot Hardness ascaco3 (SM 2340B ug/l /26/17 23:58 EPA 1631E Mercury 1.47 ng/l /23/17 13:48 J(M1) SM 5310B Total Organic Carbon 2.6 mg/l /25/17 03:18 Page 5 of 17

18 #=AR# ANALYTICAL RESULTS Project: Pepsi Water Main Pace Project No.: Sample: TMW-1 Lab ID: Collected: 12/19/17 11:27 Received: 12/19/17 14:12 Matrix: Water s s PQL MDL DF Prepared Analyzed CAS No. Qual MET ICP Analytical Method: EPA Preparation Method: EPA Cadmium 0.50 U ug/l /21/17 02:48 12/26/17 23: Chromium 2.5 U ug/l /21/17 02:48 12/26/17 23: Copper 2.5 U ug/l /21/17 02:48 12/26/17 23: Lead 5.0 U ug/l /21/17 02:48 12/26/17 23: Tot Hardness ascaco3 (SM ug/l /21/17 02:48 12/26/17 23: B Zinc 10.0 U ug/l /21/17 02:48 12/26/17 23: V Analytical Method: EPA 8260 Benzene 0.10 U ug/l /23/17 04: Ethylbenzene 0.50 U ug/l /23/17 04: Methyl-tert-butyl ether 0.50 U ug/l /23/17 04: Naphthalene 0.50 U ug/l /23/17 04: Toluene 0.50 U ug/l /23/17 04: Xylene (Total) 1.5 U ug/l /23/17 04: m&p-xylene 1.0 U ug/l /23/17 04: o-xylene 0.50 U ug/l /23/17 04: Surrogates 4-Bromofluorobenzene (S) 95 % /23/17 04: ,2-Dichloroethane-d4 (S) 103 % /23/17 04: Toluene-d8 (S) 69 % /23/17 04: J(S0) 1631E Mercury,Low Level Tampa Analytical Method: EPA 1631E Preparation Method: EPA 1631E Mercury 1.47 ng/l /22/17 17:51 12/23/17 13: J(M1) Hexavalent Chromium 24 Hour Analytical Method: EPA Chromium, Hexavalent U ug/l /02/18 13: Q 5310B TOC Analytical Method: SM 5310B Total Organic Carbon 2.6 mg/l /25/17 03: Date: 01/03/ :20 PM Page 6 of 17

19 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main QC Batch: QC Batch Method: EPA Associated Lab Samples: Analysis Method: Analysis Description: EPA MET METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Cadmium ug/l 0.50 U /28/17 10:49 Chromium ug/l 2.5 U /28/17 10:49 Copper ug/l 2.5 U /28/17 10:49 Lead ug/l 5.0 U /28/17 10:49 Tot Hardness ascaco3 (SM 2340B ug/l 1600 U /28/17 10:49 Zinc ug/l 10.0 U /28/17 10:49 LABORATORY CONTROL SAMPLE: Spike Conc. LCS LCS Limits Cadmium ug/l Chromium ug/l Copper ug/l Lead ug/l Tot Hardness ascaco3 (SM 2340B ug/l Zinc ug/l MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Cadmium ug/l U mg/l Chromium ug/l 0.47 mg/l Copper ug/l 0.17 mg/l Lead ug/l I mg/l Tot Hardness ascaco3 (SM ug/l B Zinc ug/l 0.15 mg/l Qual MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Cadmium ug/l ND Chromium ug/l ND Qual s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 7 of 17

20 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Copper ug/l Lead ug/l ND Tot Hardness ascaco3 (SM ug/l B Zinc ug/l ND Qual s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 8 of 17

21 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main QC Batch: QC Batch Method: EPA 8260 Associated Lab Samples: Analysis Method: Analysis Description: EPA V METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Benzene ug/l 0.10 U /22/17 21:03 Ethylbenzene ug/l 0.50 U /22/17 21:03 m&p-xylene ug/l 1.0 U /22/17 21:03 Methyl-tert-butyl ether ug/l 0.50 U /22/17 21:03 Naphthalene ug/l 0.50 U /22/17 21:03 o-xylene ug/l 0.50 U /22/17 21:03 Toluene ug/l 0.50 U /22/17 21:03 Xylene (Total) ug/l 1.5 U /22/17 21:03 1,2-Dichloroethane-d4 (S) % /22/17 21:03 4-Bromofluorobenzene (S) % /22/17 21:03 Toluene-d8 (S) % /22/17 21:03 J(S0) LABORATORY CONTROL SAMPLE: Spike Conc. LCS LCS Limits Benzene ug/l Ethylbenzene ug/l m&p-xylene ug/l Methyl-tert-butyl ether ug/l Naphthalene ug/l o-xylene ug/l Toluene ug/l Xylene (Total) ug/l ,2-Dichloroethane-d4 (S) % Bromofluorobenzene (S) % Toluene-d8 (S) % MATRIX SPIKE SAMPLE: Spike Conc. Benzene ug/l 0.10 U Ethylbenzene ug/l 0.50 U m&p-xylene ug/l 1.0 U Methyl-tert-butyl ether ug/l 0.50 U Naphthalene ug/l 0.50 U J(M1) o-xylene ug/l 0.50 U Toluene ug/l 0.50 U Xylene (Total) ug/l 1.5 U Limits s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 9 of 17

22 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main MATRIX SPIKE SAMPLE: Spike Conc. Limits 1,2-Dichloroethane-d4 (S) % Bromofluorobenzene (S) % Toluene-d8 (S) % SAMPLE DUPLICATE: Dup Benzene ug/l 0.10 U 0.10 U 40 Ethylbenzene ug/l 0.50 U 0.50 U 40 m&p-xylene ug/l 1.0 U 1.0 U 40 Methyl-tert-butyl ether ug/l 0.50 U 0.50 U 40 Naphthalene ug/l 0.50 U 0.50 U 40 o-xylene ug/l 0.50 U 0.50 U 40 Toluene ug/l 0.50 U 0.50 U 40 Xylene (Total) ug/l 1.5 U 1.5 U 40 1,2-Dichloroethane-d4 (S) % S3 4-Bromofluorobenzene (S) % Toluene-d8 (S) % S3 RPD Max RPD s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 10 of 17

23 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main QC Batch: QC Batch Method: EPA 1631E Associated Lab Samples: Analysis Method: Analysis Description: EPA 1631E 1631E Mercury,Low Level METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Mercury ng/l 0.25 U /23/17 13:28 METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Mercury ng/l 0.25 U /23/17 13:33 METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Mercury ng/l 0.25 U /23/17 13:38 LABORATORY CONTROL SAMPLE: Spike Conc. LCS LCS Limits Mercury ng/l MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Mercury ng/l J(M1) Qual s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 11 of 17

24 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main QC Batch: QC Batch Method: EPA Associated Lab Samples: Analysis Method: Analysis Description: EPA Chromium, Hexavalent by IC 24 Hour METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Chromium, Hexavalent ug/l U /02/18 12:42 LABORATORY CONTROL SAMPLE: Spike Conc. LCS LCS Limits Chromium, Hexavalent ug/l MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Chromium, Hexavalent ug/l ND J(M1), Q Qual s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 12 of 17

25 #=QC# QUALITY CONTROL DATA Project: Pace Project No.: Pepsi Water Main QC Batch: QC Batch Method: SM 5310B Associated Lab Samples: Analysis Method: Analysis Description: SM 5310B 5310B TOC METHOD BLANK: Associated Lab Samples: Blank Matrix: Water Reporting Limit MDL Analyzed Total Organic Carbon mg/l 0.50 U /24/17 23:06 LABORATORY CONTROL SAMPLE: Spike Conc. LCS LCS Limits Total Organic Carbon mg/l MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Total Organic Carbon mg/l Qual MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Spike Conc. D Spike Conc D D Max Limits RPD RPD Total Organic Carbon mg/l ND Qual s presented on this page are in the units indicated by the "" column except where an alternate unit is presented to the right of the result. Date: 01/03/ :20 PM Page 13 of 17

26 #=QL# QUALIFIERS Project: Pace Project No.: Pepsi Water Main DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) (D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES PASI-O PASI-Tp Pace Analytical Services - Ormond Beach Pace Analytical Services - Tampa ANALYTE QUALIFIERS I U J(M1) J(S0) Q Q S3 The reported value is between the laboratory method detection limit and the laboratory practical quantitation limit. Compound was analyzed for but not detected. Estimated Value. Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery. Estimated Value. Surrogate recovery outside laboratory control limits. Sample held beyond the accepted holding time. Sample held beyond the accepted holding time. Sample was received outside EPA method holding time. Surrogate recovery exceeded laboratory control limits. Analyte presence below reporting limits in associated samples. Date: 01/03/ :20 PM Page 14 of 17

27 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: Pace Project No.: Pepsi Water Main Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch TMW-1 EPA EPA TMW-1 EPA TMW-1 EPA 1631E EPA 1631E TMW-1 EPA TMW-1 SM 5310B Date: 01/03/ :20 PM Page 15 of 17

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