518 Broad Street, Suite 200 St Joseph, Michigan 49085 269 932 4502

BID ADDENDA #2

Date: June 3, 2026

Project: Lexington State Harbor - Marina Development Project

State File No.: File No. 751/17282.BDW

Owner: State of Michigan – DNR (Contracting Agency: DTMB)

This following are changes, eliminations and/or clarifications to project plans and specifications, and shall be considered by the contractor in their estimate. All of these items shall be considered as part of the contract documents.

Additional Project Supplemental Information

1. Sediment testing was performed in the proposed dredge area and the testing results are attached.

2. Geotechnical investigation report was not included in previous files, this report is attached to this addendum.

Project Plan and Specification Updates

1. MICHSPEC, Section 00300 Bid Form, Article 6 – Bid Schedule, Part 6.1 Base Bid Schedule: These eleven (11) pages of the bid form have been updated to include Item Numbers 33 20 00.01 Fuel System Demolition – Marine and 33 20 00.02 Fuel System Demolition – Upland.

2. MICHSPEC – BID DUE DATE (all references): Bid submission deadline has been extended to 6/17/2026 by 2

PM ET. Bid question deadline has been extended to 6/8/2026 by 5 PM ET.

Questions and Clarifications Q1: What pay item is upland and marine fuel system demolition included in?

A1: Upland and Marine fuel system demolition is included in Pay Item No. 33 20 00.02 and 33 20 00.01 respectively. These two bid item numbers are missing on the Bid Schedule, but this form has been revised to include them, and an updated copy is attached to this addendum

Q2: Can the bid due date be extended to allow additional time to prepare a thorough bid?

A2: The bid due date and bid question deadline have both been extended to allow additional time to prepare a bid. Questions are now by 5 PM on Monday 6/8/2026. The bid due date is extended by 1-week, with bids now due by 2 PM ET on Wednesday 6/17/2026.

Q3: Are galvanized steel mooring cleats allowable on the floating dock system?

A3: Mooring cleats shall be made of cast aluminum alloy per specifications

Q4: The drawings note non-slip decking on the gangway ramps while the specifications note timber decking to match the floating docks, please clarify.

A4: The decking on the gangway ramps shall be timber per the requirements of the specifications

Addendum #2 Attachments Attachment 1: Sediment Summary Report, January 22, 2025 (53 pages) Attachment 2: Report of Geotechnical Investigation, 2024 (42 pages) Attachment 3: MICHSPEC Pages 00300 – 1 and 00300 – 11, revised Bid Schedule forms (11 pages)

Sediment Summary Report

Lexington State Harbor 7411 Huron Avenue Lexington, Michigan

Edgewater Resources

Project No. 241817 January 22, 2025

Sediment Summary Report

Lexington State Harbor 7411 Huron Avenue Lexington, Michigan 49085

Prepared For:

Edgewater Resources St. Joseph, Michigan

January 22, 2025 Project No. 241817

Table of Contents Fishbeck | Page i

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1.0 Introduction

2.0 Investigation Methods

2.1 Sediment Sampling

3.0 Investigation Results

3.1 Sediment

3.2 Waste Characterization

4.0 Summary and Conclusions

4.1 Qualifications and Limitations

List of Figures Figure 1 – Location Map Figure 2 – Sample Location Map

List of Tables Table 1 – Sediment Data Summary

List of Appendices Appendix 1 Soil Boring Logs Appendix 2 Laboratory Report

List of Abbreviations/Acronyms bgs below ground surface DSRC Dredge Sediment Review Criteria EGLE Michigan Department of Environment, Great Lakes, and Energy GRCC Generic Residential Cleanup Criteria PA Public Act Part 201 Part 201 (Environmental Remediation) of the Natural Resources and Environmental Protection Act, 1994 of Public Act 451, as amended (NREPA) PNA polynuclear aromatic hydrocarbons ppm part(s) per million RCRA Resource Conservation and Recovery Act SDBL statewide default background level SVOC semivolatile organic compound mg/kg milligram per kilogram mg/L milligram per liter µg/Kg microgram per kilogram µg/L microgram per liter VOC volatile organic compound

January 22, 2025 Fishbeck | Page 1

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1.0 Introduction

Fishbeck conducted a sediment characterization investigation on December 9, 2024, at Lexington State Harbor, 7411 Huron Avenue, Lexington, MI 49085 (Site) on behalf of Edgewater Resources. A site location map is provided in Figure 1. The purpose of the investigation was to collect representative samples to characterize sediment in the proposed dredge area of the Marina for the presence of chemicals of concern (COCs). A map showing boring locations and the approximate area of proposed dredging is provided in Figures 2. This report documents the work described in the proposal dated August 16, 2024. The Site investigation involved the completion of eight hand auger sediment borings, and the collection of eight sediment samples (including one waste characterization sample).

Based on the findings of this investigation, the offshore sediment (in the area of the proposed dredging) was less than 90% sand. The analysis of polynuclear aromatic compounds (PNAs) and Biological oxygen demand (BOD) were non-detect for all soil samples. RCRA 8 Metals Arsenic and Selenium (B) were detectable in soil samples exceeding EGLE Part 201 GRCC, and Soil Dredging Criteria.

2.0 Investigation Methods

On December 9, 2024, Fishbeck completed eight sediment borings, SB-01 through SB-08 and collected 8 corresponding sediment samples, SS-01 through SS-08. The sediment boring locations are shown on Figure 2.

2.1 Sediment Sampling

Fishbeck completed eight hand auger sediment borings (SB-01 through SB-08), using a stainless steel, 4-inch hand-auger from the edge of the docks, between boat slips. Copies of the boring logs are provided as Appendix 1.

Sediment was collected from the entire depth of the boring and homogenized to form one composite sample at each boring. The target depth of the boreholes was 1 to 3 feet below the existing sediment level. All boreholes were completed to a total depth of 3 feet below the existing sediment level.

The sediment samples were homogenized and collected directly into laboratory-prepared bottles, stored on ice in an insulated cooler, sealed, and transported under chain-of-custody documentation to Trace Analytical Laboratories, Inc. of Muskegon, Michigan, for laboratory analysis of PNAs using EPA Method 8270, RCRA 8 metals, BOD, and Percent Solids.

A separate waste characterization sample (WC) was collected from sample location SB-06 for analysis of TCLP PNAs, and TCLP RCRA 8 metals.

3.0 Investigation Results

The sediment analytical results were compared to applicable EGLE Part 201 GRCC, EGLE Aquatic Life and Wildlife Screening Guidelines, and EGLE Dredge Criteria and Detection Limits and are provided in Table 1. Copies of the laboratory reports are provided as Appendix 2.

3.1 Sediment

In general, approximately 3 feet of sludge was encountered with some fine grained sand with some dark gray/black organic material. A copy of the boring logs is provided in Appendix 1.

The analytical results for PNAs did not identify any exceedances for the EGLE Part 201 GRCC, EGLE Soil Dredge Criteria, or EGLE Aquatic Life and Wildlife Screening Criteria.

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The analytical results for RCRA 8 Metals identified exceedances of EGLE Part 201 GRCC for arsenic identified in SS-02 through SS-5 and SS-08. Exceedances above EGLE Soil Dredge Criteria for arsenic were encountered at SS-04, SS-05, and SS-08. Exceedances above EGLE Part 201 GRCC for selenium were encountered at SS-01 through SS-08. Selenium was detected at the EGLE Aquatic Life and Wildlife Screening Criterion of 1,900 µg/Kg in SS-05 but did not exceed the criterion. A summary of the analytical results is presented in Table 1.

3.2 Waste Characterization

The TCLP analytical results for the sediment did not identify any exceedances of laboratory detection limits.

Therefore, the sediments are considered to be non-hazardous. The analytical results are provided in Appendix 2.

4.0 Summary and Conclusions

Short-term exposure risks to site workers were identified based on the analytical results obtained during this investigation. Results from the investigation showed arsenic concentrations in the sediment at three locations (SS-04, SS-05, and SS-08) exceeded Part 201 Residential Direct Contact Criteria and Part 115 Soil Dredge Criteria.

No SVOCs were detected above laboratory reporting limits in the sediment samples. The findings suggest that the sediment is impacted by metals above Statewide Default Background Levels and may pose a Direct Contact risk to human health and the environment, and should be disposed of at a licensed disposal facility in accordance with applicable laws and regulations.

4.1 Qualifications and Limitations

The findings presented in this report were based on the analytical results of the limited site-specific sediment testing from the December 2024, investigation and are subject to Fishbeck’s standard qualifications and limitations. The conclusions and recommendations made in this report are based on current EGLE regulations promulgated under Michigan’s NREPA, as amended, as of the date of this report.

This Sediment Summary Report is provided for the exclusive use of Edgewater Resources.

The potential exists for unknown conditions to be encountered during dredging. These situations, if encountered, will have to be addressed on a case-by-case basis by the Site Manager.

Figures

Tables

Fishbeck | 1 of 1 Table 1 - Soil Data Summary

Lexington State Harbor, 7411 Huron Ave., Lexington, Michigan

December 2024

Sample Location:

Collection Date:

Polynuclear Aromatic Compounds (PNA) CAS Number

2-Methylnaphthalene 91-57-6 -- 8.10E+06 NA 4,200 NA 57,000 2.70E+06 1.50E+06 1.50E+06 1.50E+06 6.70E+08 8.10E+06 1,700 1.70E+05 4.90E+06 1.80E+06 1.80E+06 1.80E+06 2.90E+08 2.60E+07 60,000 510 U 700 U 750 U 750 UJ 390 U 340 UJ 330 U 340 U

Acenaphthene 83-32-9 -- 4.10E+07 NA 8,700 NA 3.00E+05 1.90E+08 8.10E+07 8.10E+07 8.10E+07 1.40E+10 4.10E+07 2.00E+05 8.80E+05 3.50E+08 9.70E+07 9.70E+07 9.70E+07 6.20E+09 1.30E+08 7.20E+06 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Acenaphthylene 208-96-8 -- 1.60E+06 NA ID NA 5,900 1.60E+06 2.20E+06 2.20E+06 2.20E+06 2.30E+09 1.60E+06 DATA 17,000 3.00E+06 2.70E+06 2.70E+06 2.70E+06 1.00E+09 5.20E+06 DATA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Anthracene 120-12-7 845 2.30E+08 NA ID NA 41,000 1.00E+09 1.40E+09 1.40E+09 1.40E+09 6.70E+10 2.30E+08 1.30E+07 41,000 1.00E+09 (D) 1.60E+09 1.60E+09 1.60E+09 2.90E+10 7.30E+08 4.40E+08 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Benzo(a)anthracene 56-55-3 1,050 20,000 NA NLL NA NLL NLV NLV NLV NLV ID 20,000 1.60E+05 (MM) NLL NLV NLV NLV NLV ID 80,000 2.20E+07 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Benzo(a)pyrene 50-32-8 1,450 2,000 NA NLL NA NLL NLV NLV NLV NLV 1.50E+06 2,000 NA NLL NLV NLV NLV NLV 1.90E+06 8,000 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Benzo(b)fluoranthene 205-99-2 -- 20,000 NA NLL NA NLL ID ID ID ID ID 20,000 NA NLL ID ID ID ID ID 80,000 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Benzo(g,h,i)perylene 191-24-2 -- 2.50E+06 NA NLL NA NLL NLV NLV NLV NLV 8.00E+08 2.50E+06 NA NLL NLV NLV NLV NLV 3.50E+08 7.00E+06 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Benzo(k)fluoranthene 207-08-9 -- 2.00E+05 NA NLL NA NLL NLV NLV NLV NLV ID 2.00E+05 NA NLL NLV NLV NLV NLV ID 8.00E+05 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Chrysene 218-01-9 1,290 2.00E+06 NA NLL NA NLL ID ID ID ID ID 2.00E+06 NA NLL ID ID ID ID ID 8.00E+06 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Dibenzo(a,h)anthracene 53-70-3 -- 2,000 NA NLL NA NLL NLV NLV NLV NLV ID 2,000 NA NLL NLV NLV NLV NLV ID 8,000 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Fluoranthene 206-44-0 2,230 4.60E+07 NA 5,500 NA 7.30E+05 1.00E+09 7.40E+08 7.40E+08 7.40E+08 9.30E+09 4.60E+07 NA 7.30E+05 1.00E+09 (D) 8.90E+08 8.80E+08 8.80E+08 4.10E+09 1.30E+08 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Fluorene 86-73-7 536 2.70E+07 NA 5,300 NA 3.90E+05 5.80E+08 1.30E+08 1.30E+08 1.30E+08 9.30E+09 2.70E+07 4.70E+05 8.90E+05 1.00E+09 (D) 1.50E+08 1.50E+08 1.50E+08 4.10E+09 8.70E+07 1.70E+07 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Indeno(1,2,3-cd)pyrene 193-39-5 -- 20,000 NA NLL NA NLL NLV NLV NLV NLV ID 20,000 NA NLL NLV NLV NLV NLV ID 80,000 NA 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Naphthalene 91-20-3 561 1.60E+07 NA 730 NA 35,000 2.50E+05 3.00E+05 3.00E+05 3.00E+05 2.00E+08 1.60E+07 67 (M*) 1.00E+05 4.70E+05 3.50E+05 3.50E+05 3.50E+05 8.80E+07 5.20E+07 3,800 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Phenanthrene 85-01-8 1,170 1.60E+06 NA 2,100 NA 56,000 2.80E+06 1.60E+05 1.60E+05 1.60E+05 6.70E+06 1.60E+06 1,700 1.60E+05 5.10E+06 1.90E+05 1.90E+05 1.90E+05 2.90E+06 5.20E+06 58,000 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

Pyrene 129-00-0 1,520 2.90E+07 NA ID NA 4.80E+05 1.00E+09 (D) 6.50E+08 6.50E+08 6.50E+08 6.70E+09 2.90E+07 2.50E+07 4.80E+05 1.00E+09 (D) 7.80E+08 7.80E+08 7.80E+08 2.90E+09 8.40E+07 8.80E+08 330 U 330 U 330 U 330 UJ 330 U 330 UJ 330 U 330 U

General Chemistry CAS Number

Biochemical Oxygen Demand (5-day) (µg/Kg wet weight) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 100,000 U 99,000 U 97,000 U 99,000 U 98,000 U 96,000 U 96,000 U 100,000 U

Metals, Total CAS Number

Arsenic 7440-38-2 33,000 7,600 5,800 4,600 NA 4,600 NLV NLV NLV NLV 7.20E+05 7,600 NA 4,600 NLV NLV NLV NLV 9.10E+05 37,000 NA 3,300 6,200 7,600 8,200 8,100 5,500 5,500 7,900

Barium (B) 7440-39-3 -- -- 75,000 4.42E+05 (G) NA 1.30E+06 NLV NLV NLV NLV 3.30E+08 3.70E+07 NA 1.30E+06 NLV NLV NLV NLV 1.50E+08 1.30E+08 NA 14,000 25,000 29,000 31,000 33,000 20,000 24,000 30,000

Cadmium (B) 7440-43-9 4,980 5.50E+05 1,200 3,600 (G,X) NA 6,000 NLV NLV NLV NLV 1.70E+06 5.50E+05 NA 6,000 NLV NLV NLV NLV 2.20E+06 2.10E+06 NA 240 390 390 560 570 370 270 360

Chromium, Total (B, H) 7440-47-3 1.11E+05 -- 18,000 (total) 3,300 NA 30,000 NLV NLV NLV NLV 2.60E+05 2.50E+06 NA 30,000 NLV NLV NLV NLV 2.40E+05 9.20E+06 NA 6,200 12,000 13,000 15,000 16,000 11,000 12,000 15,000

7440-50-8 1.49E+05 32,000 75,000 (G) NA 5.80E+06 NLV NLV NLV NLV 1.30E+08 2.0E+07 NA 5,800,000 NLV NLV NLV NLV 5.90E+07 7.30E+07 NA 7,100 19,000 21,000 20,000 23,000 16,000 18,000 28,000

Lead (B) 7439-92-1 1.28E+05 4.00E+05 21,000 5.98E+06 (G,X) NA 7.00E+05 NLV NLV NLV NLV 1.00E+08 4.00E+05 NA 7.00E+05 NLV NLV NLV NLV 4.40E+07 9.00E+05 (DD) NA 10,000 U 12,000 14,000 18,000 19,000 10,000 U 11,000 14,000

Mercury (Total) (B) 7439-97-6 1,060 1.60E+05 130 50 (M); 1.2 NA 1,700 48,000 52,000 52,000 52,000 2.00E+07 1.60E+05 22 (M*) 1,700 89,000 62,000 62,000 62,000 8.80E+06 5.80E+05 790 (M*) 44 U 60 U 61 U 59 U 64 U 61 U 50 U 61 U

7440-02-0 48,600 20000 76,000 (G) NA 100,000 NLV NLV NLV NLV 1.30E+07 4.00E+07 NA 100,000 NLV NLV NLV NLV 1.60E+07 1.50E+08 NA 7,400 14,000 17,000 18,000 20,000 13,000 14,000 17,000

Selenium (B) 7782-49-2 1,900 2.60E+06 410 400 NA 4,000 NLV NLV NLV NLV 1.30E+08 2.60E+06 NA 4,000 NLV NLV NLV NLV 5.90E+07 9.60E+06 NA 760 1,300 1,600 1,800 1,900 1,100 1,400 1,500

Silver (B) 7440-22-4 -- -- 1,000 100 (M); 27 NA 4,500 NLV NLV NLV NLV 6.70E+06 2.50E+06 NA 13,000 NLV NLV NLV NLV 2.90E+06 9.00E+06 NA 480 U 480 U 490 U 510 U 490 U 490 U 530 U 490 U

7440-66-6 4.59E+05 47,000 1.7E+5 (G) NA 2.40E+06 NLV NLV NLV NLV ID 1.7E+08 NA 5,000,000 NLV NLV NLV NLV ID 6.30E+08 NA 29,000 60,000 62,000 65,000 70,000 52,000 44,000 74,000

Solids, Total (%) -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 82 59 55 55 53 61 70 61

Results expressed in µg/Kg dry weight, except where noted.

Bolded values indicate analyte detection.

Shaded values exceed Statewide Default Background Level and an applicable criterion or screening level.

Italicized values are below Statewide Default Background Level but exceed an applicable criterion or screening level.

Data Qualifiers:

J Estimated value

U Not detected

Footnotes/Abbreviations:

(1)

WRD-048 Sediment Testing for Dredging Projects, MDEQ, Water Resources Program, April 13, 2018.

(2)

Part 115 Review Criteria and Detection Limits, MDEQ Dredge Sediment Review Policy, January 12, 2015.

(3)

Part 201 Nonresidential Soil Generic Cleanup Criteria and Screening Levels/Part 213 Risk-based Screening Levels, October 12, 2023.

(4)

Volatilization to Indoor Air Pathway Screening Levels; EGLE Guidance for the Vapor Intrusion Pathway, February, 2024.

(B) Background, as defined in R 299.5701(b), may be substituted if higher than the calculated criterion.

(D) Calculated criterion exceeds 100 percent; hence it is reduced to 100 percent or 1.00E+09 parts per billion (ppb).

(G) Criterion dependent on receiving surface water hardness; calculated criteria based on water hardness of 150 mg/L.

(H) Data provided for total chromium only; evaluated against hexavalent Chromium criteria.

(M) Calculated criterion is below the target detection limit (TDL); first number is the criterion (TDL), the second is the risk-based value.

(M*) The VIAP SL may be below TDL. In accordance with Sec. 20120a(10) when the TDL for a hazardous substance is greater than the developed VIAP SL, the TDL is used to evaluate the risk posed from the pathway.

(X) Criterion is not protective for surface water used as a drinking water source.

(MM) Hazardous substance is a carcinogen with a mutagenic mode of action. The cancer potency values used in calculating VIAP SLs are modified using age-dependent adjustment factors for those carcinogenic chemicals identified as mutagenic.

DATA Insufficient physical chemical parameters to calculate a VIAP SL for specified media. If detections are present in specified media, health-based soil vapor value should be used to evaluate risk.

DCC direct contact criteria

DWPC drinking water protection criteria

GSIP groundwater surface water interface protection

ID Insufficient data to develop criterion.

NA not available

NLL Not likely to leach under most soil conditions.

NLV Not likely to volatilize under most conditions.

PSIC particulate soil inhalation criteria

SL screening level

SVIAIC soil volatilization to indoor air inhalation criteria

Csat soil saturation concentration screening level

VIAP volatilization to indoor air pathway

VSIC volatile soil inhalation criteria

Nickel

Zinc

Copper

Finite VSIC: 5M

Source

Thickness (3)

Finite VSIC: 2M

Source

Thickness (3)

Infinite Source

VSIC

(3)

Finite VSIC: 5M

Source

Thickness (3)

Finite VSIC: 2M

Source

Thickness (3)

DWPC

(3)

SVIAIC

(3)

PSIC

(3)

DCC

(3)Csat

(3)Laboratory ID:

SS-01

24L0434-01

12/09/24

PSIC

(3)

Statewide

Default

Background

Levels (3)

GSIP

Criteria (3)

Nonresidential

SVIAIC

(3)

Residential

DWPC

(3)

DCC

(3)

12-hr Soil

VIAP SL

(4)

Soil

VIAP SL

(4)

Infinite Source

VSIC

(3)

12/09/24

SS-02

24L0434-02

12/09/24

SS-03

24L0434-03

12/09/24

SS-08

24L0434-08

12/09/24

Aquatic Life and Wildlife

Screening

Criteria (1)

Soil

Dredge

Criteria (2)

SS-06

24L0434-06

12/09/24

SS-07

24L0434-07

12/09/24

SS-04

24L0434-04

12/09/24

SS-05

24L0434-05

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Appendix 1

Appendix 2

March 24, 2025

1515 Arboretum Drive SE

Grand Rapids, MI 49546

Mr. Kirk Perschbacher Fishbeck

Lexington State Harbor, Lex-2024-1209Client Project

24L0434Trace ProjectRE:

Dear Mr. Perschbacher:

Enclosed are your analytical results. The results of this report relate only to the samples listed in the body of this report.

This report was regenerated to add Copper, Nickel and Zinc to the sediment samples per the clients request.

All reports were examined through Trace's validation process to ensure that requirements for quality and completeness were satisfied. All reported analytical results were obtained in accordance with the methods referenced on the reports. Every practical effort was made to meet the reporting limit specifications for this work , however, some results may have raised reporting limits to correct for percent solids.

For clients that require NELAP Accreditation, Trace certifies that these test results meet all requirements of the NELAP Standard , except for those analytes with a "N" notation. These analytes have not been evaluated by NELAP at Trace's discretion and will not be reported unless requested by client.

If you have questions concerning this report, please contact me at 231.773.5998 or by email at jmink@trace-labs.com.

Sincerely, Senior Project Manager

Jon Mink

Enclosures

TNI EL V1:2016

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 1 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

SAMPLE SUMMARY

Client Project ID:

Trace Project ID: 24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID Sample ID Matrix Collected By Date Collected Date Received

24L0434-01 SS-01 Solid 12/09/24 13:40 12/10/24 09:50ADF/RSM

24L0434-02 SS-02 Solid 12/09/24 13:50 12/10/24 09:50ADF/RSM

24L0434-03 SS-03 Solid 12/09/24 13:30 12/10/24 09:50ADF/RSM

24L0434-04 SS-04 Solid 12/09/24 11:15 12/10/24 09:50ADF/RSM

24L0434-05 SS-05 Solid 12/09/24 10:30 12/10/24 09:50ADF/RSM

24L0434-06 SS-06 Solid 12/09/24 11:45 12/10/24 09:50ADF/RSM

24L0434-07 SS-07 Solid 12/09/24 12:00 12/10/24 09:50ADF/RSM

24L0434-08 SS-08 Solid 12/09/24 12:25 12/10/24 09:50ADF/RSM

24L0434-09 WC Solid 12/09/24 12:25 12/10/24 09:50ADF/RSM

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 2 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

ANALYTICAL RESULTS

Trace Project ID:

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-01

Sample ID: SS-01 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:40Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.044 0.044 1 12/17/24 12/18/24cma acs DL01

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry3.3 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry14 9.6 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.24 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry6.2 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry7.1 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry<10 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry7.4 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry0.76 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.48 0.48 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry29 4.8 10 12/13/24 12/13/24jm jma

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160607

Naphthalene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

2-Methylnaphthalene ug/kg dry<510 510 2 12/13/24 12/16/24av drm

Acenaphthylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Acenaphthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluorene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Phenanthrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Chrysene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (b) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 3 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-01

Sample ID: SS-01 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:40Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Dibenz (a,h) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (g,h,i) perylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Surrogates:

%Nitrobenzene-d5 57 2 12/13/24 12/16/24av drm36-98

%2-Fluorobiphenyl 60 2 12/13/24 12/16/24av drm44-105 N

%Terphenyl-d14 71 2 12/13/24 12/16/24av drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.82 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<100 100 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 4 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-02

Sample ID: SS-02 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:50Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.060 0.060 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry6.2 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry25 9.7 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.39 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry12 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry19 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry12 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry14 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.3 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.48 0.48 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry60 4.8 10 12/13/24 12/13/24jm jma

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160607

Naphthalene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

2-Methylnaphthalene ug/kg dry<700 700 2 12/13/24 12/16/24av drm

Acenaphthylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Acenaphthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluorene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Phenanthrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Chrysene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (b) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 5 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-02

Sample ID: SS-02 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:50Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Dibenz (a,h) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (g,h,i) perylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Surrogates:

%Nitrobenzene-d5 53 2 12/13/24 12/16/24av drm36-98

%2-Fluorobiphenyl 58 2 12/13/24 12/16/24av drm44-105 N

%Terphenyl-d14 71 2 12/13/24 12/16/24av drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.59 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<99 99 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 6 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-03

Sample ID: SS-03 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:30Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.061 0.061 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry7.6 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry29 9.8 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.39 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry13 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry21 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry14 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry17 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.6 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.49 0.49 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry62 4.9 10 12/13/24 12/13/24jm jma

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160607

Naphthalene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

2-Methylnaphthalene ug/kg dry<750 750 2 12/13/24 12/16/24av drm

Acenaphthylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Acenaphthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluorene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Phenanthrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Chrysene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (b) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 7 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-03

Sample ID: SS-03 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 13:30Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Dibenz (a,h) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (g,h,i) perylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Surrogates:

%Nitrobenzene-d5 60 2 12/13/24 12/16/24av drm36-98

%2-Fluorobiphenyl 60 2 12/13/24 12/16/24av drm44-105 N

%Terphenyl-d14 64 2 12/13/24 12/16/24av drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.55 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<97 97 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 8 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-04

Sample ID: SS-04 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 11:15Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.059 0.059 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry8.2 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry31 10 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.56 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry15 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry20 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry18 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry18 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.8 0.41 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.51 0.51 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry65 5.1 10 12/13/24 12/13/24jm jma

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160607

Naphthalene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

2-Methylnaphthalene ug/kg dry<750 750 2 12/13/24 12/16/24av drm

Acenaphthylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Acenaphthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluorene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Phenanthrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Chrysene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (b) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 9 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-04

Sample ID: SS-04 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 11:15Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

DL03SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (a) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Dibenz (a,h) anthracene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Benzo (g,h,i) perylene ug/kg dry<330 330 2 12/13/24 12/16/24av drm

Surrogates:

%Nitrobenzene-d5 35 2 12/13/24 12/16/24* av drm36-98 S10

%2-Fluorobiphenyl 45 2 12/13/24 12/16/24av drm44-105 N

%Terphenyl-d14 56 2 12/13/24 12/16/24av drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.55 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<99 99 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 10 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-05

Sample ID: SS-05 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 10:30Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.064 0.064 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry8.1 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry33 9.8 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.57 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry16 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry23 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry19 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry20 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.9 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.49 0.49 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry70 4.9 10 12/13/24 12/13/24jm jma

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160663

Naphthalene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

2-Methylnaphthalene ug/kg dry<390 390 1 12/16/24 12/17/24kbc drm

Acenaphthylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Acenaphthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluorene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Phenanthrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Chrysene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (b) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 11 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-05

Sample ID: SS-05 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 10:30Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Dibenz (a,h) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (g,h,i) perylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Surrogates:

%Nitrobenzene-d5 59 1 12/16/24 12/17/24kbc drm36-98

%2-Fluorobiphenyl 57 1 12/16/24 12/17/24kbc drm44-105 N

%Terphenyl-d14 73 1 12/16/24 12/17/24kbc drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.53 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<98 98 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 12 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-06

Sample ID: SS-06 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 11:45Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.061 0.061 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry5.5 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry20 9.8 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.37 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry11 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry16 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry<10 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry13 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.1 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.49 0.49 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry52 4.9 10 12/13/24 12/13/24jm jma

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160663

Naphthalene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

2-Methylnaphthalene ug/kg dry<340 340 1 12/16/24 12/17/24kbc drm

Acenaphthylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Acenaphthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluorene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Phenanthrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Chrysene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (b) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 13 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-06

Sample ID: SS-06 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 11:45Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Dibenz (a,h) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (g,h,i) perylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Surrogates:

%Nitrobenzene-d5 42 1 12/16/24 12/17/24kbc drm36-98

%2-Fluorobiphenyl 41 1 12/16/24 12/17/24* kbc drm44-105 S10, N

%Terphenyl-d14 50 1 12/16/24 12/17/24kbc drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.61 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<96 96 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 14 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-07

Sample ID: SS-07 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:00Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.050 0.050 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry5.5 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry24 11 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.27 0.21 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry12 2.1 10 12/13/24 12/13/24cma jma

Copper mg/kg dry18 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry11 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry14 1.1 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.4 0.42 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.53 0.53 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry44 5.3 10 12/13/24 12/13/24jm jma

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160663

Naphthalene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

2-Methylnaphthalene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Acenaphthylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Acenaphthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluorene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Phenanthrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Chrysene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (b) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 15 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-07

Sample ID: SS-07 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:00Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Dibenz (a,h) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (g,h,i) perylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Surrogates:

%Nitrobenzene-d5 58 1 12/16/24 12/17/24kbc drm36-98

%2-Fluorobiphenyl 51 1 12/16/24 12/17/24kbc drm44-105 N

%Terphenyl-d14 70 1 12/16/24 12/17/24kbc drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.70 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<96 96 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 16 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-08

Sample ID: SS-08 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:25Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TOTAL

Analysis Method: EPA 7471B

Batch: T160723

Mercury mg/kg dry<0.061 0.061 1 12/17/24 12/18/24cma acs

METALS, TOTAL

Analysis Method: EPA 6020B

Batch: T160531

Arsenic mg/kg dry7.9 2.0 10 12/13/24 12/13/24cma jma

Barium mg/kg dry30 9.7 10 12/13/24 12/13/24cma jma

Cadmium mg/kg dry0.36 0.20 10 12/13/24 12/13/24cma jma

Chromium mg/kg dry15 2.0 10 12/13/24 12/13/24cma jma

Copper mg/kg dry28 1.0 10 12/13/24 12/13/24jm jlh

Lead mg/kg dry14 10 10 12/13/24 12/13/24cma jma

Nickel mg/kg dry17 1.0 10 12/13/24 12/13/24jm jlh

Selenium mg/kg dry1.5 0.39 10 12/13/24 12/13/24cma jma

Silver mg/kg dry<0.49 0.49 10 12/13/24 12/13/24cma jma

Zinc mg/kg dry74 4.9 10 12/13/24 12/13/24jm jma

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Analysis Method: EPA 8270E

Batch: T160663

Naphthalene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

2-Methylnaphthalene ug/kg dry<340 340 1 12/16/24 12/17/24kbc drm

Acenaphthylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Acenaphthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluorene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Phenanthrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Chrysene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (b) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 17 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-08

Sample ID: SS-08 Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:25Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS BY GC-MS

Benzo (k) fluoranthene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (a) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Indeno (1,2,3-cd) pyrene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Dibenz (a,h) anthracene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Benzo (g,h,i) perylene ug/kg dry<330 330 1 12/16/24 12/17/24kbc drm

Surrogates:

%Nitrobenzene-d5 47 1 12/16/24 12/17/24kbc drm36-98

%2-Fluorobiphenyl 44 1 12/16/24 12/17/24kbc drm44-105 N

%Terphenyl-d14 57 1 12/16/24 12/17/24kbc drm46-109

WET CHEMISTRY

Analysis Method: ASTM D2974-07a

Batch: T160617

% Solids % by Wt.61 0.10 1 12/13/24 12/16/24sm sm

Analysis Method: SM 5210B-16

Batch: T160471

Biochemical Oxygen Demand 5-day mg/kg wet<100 100 10 12/10/24 12/15/24cdj cdj N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 18 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-09

Sample ID: WC Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:25Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

METALS, TCLP

Analysis Method: EPA 6010D

Batch: T160870

Arsenic mg/L<0.30 0.30 1 12/19/24 12/19/24 5.0jma jlh

Barium mg/L<1.0 1.0 1 12/19/24 12/19/24 100jma jlh

Cadmium mg/L<0.10 0.10 1 12/19/24 12/19/24 1.0jma jlh

Chromium mg/L<0.50 0.50 1 12/19/24 12/19/24 5.0jma jlh

Lead mg/L<0.50 0.50 1 12/19/24 12/19/24 5.0jma jlh

Selenium mg/L<0.60 0.60 1 12/19/24 12/19/24 1.0jma jlh

Silver mg/L<0.10 0.10 1 12/19/24 12/19/24 5.0jma jlh

Analysis Method: EPA 7470A

Batch: T160752

Mercury mg/L<0.010 0.010 1 12/18/24 12/18/24 0.20cma acs

SEMI-VOLATILE ORGANIC COMPOUNDS, TCLP

Analysis Method: EPA 8270E

Batch: T160562

Pyridine mg/L<1.0 1.0 1 12/12/24 12/13/24 5.0kbc drm

2-Methylphenol (o-Cresol) mg/L<0.12 0.12 1 12/12/24 12/13/24 200kbc drm

3,4-Methylphenol (m,p Cresol) mg/L<0.12 0.12 1 12/12/24 12/13/24 200kbc drm

Hexachloroethane mg/L<0.12 0.12 1 12/12/24 12/13/24 3.0kbc drm MS02

Nitrobenzene mg/L<0.050 0.050 1 12/12/24 12/13/24 2.0kbc drm MS02

Hexachlorobutadiene mg/L<0.15 0.15 1 12/12/24 12/13/24 0.50kbc drm MS02

2,4,6-Trichlorophenol mg/L<0.050 0.050 1 12/12/24 12/13/24 2.0kbc drm MS02

2,4,5-Trichlorophenol mg/L<0.082 0.082 1 12/12/24 12/13/24 400kbc drm

2,4-Dinitrotoluene mg/L<0.12 0.12 1 12/12/24 12/13/24 0.13kbc drm

Hexachlorobenzene mg/L<0.12 0.12 1 12/12/24 12/13/24 0.13kbc drm MS02

Pentachlorophenol mg/L<0.25 0.25 1 12/12/24 12/13/24 100kbc drm

Surrogates:

%2-Fluorophenol 29 1 12/12/24 12/13/24kbc drm20-53

%Phenol-d5 18 1 12/12/24 12/13/24kbc drm11-40

%Nitrobenzene-d5 58 1 12/12/24 12/13/24kbc drm36-103

%2-Fluorobiphenyl 52 1 12/12/24 12/13/24kbc drm36-119 N

%2,4,6-Tribromophenol 60 1 12/12/24 12/13/24kbc drm30-105 N

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 19 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

Client Project ID:

24L0434

Lexington State Harbor, Lex-2024-1209

Trace ID: 24L0434-09

Sample ID: WC Date Received: 12/10/24 09:50

Date Collected: 12/09/24 12:25Matrix: Solid

PARAMETERS RESULTS UNITS RDL DILUTION PREPARED BYANALYZEDBY NOTES MCL

SEMI-VOLATILE ORGANIC COMPOUNDS, TCLP

%Terphenyl-d14 62 1 12/12/24 12/13/24kbc drm37-109

CERTIFICATE OF ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Trace Analytical Laboratories, Inc.

Page 20 of 33Report ID: 24L0434 TRACE_QC FINAL 03 24 25 1526

QUALITY CONTROL RESULTS

Trace Project ID: 24L0434

Client Project ID: Lexington State Harbor, Lex-2024-1209

QC Batch: T160498

QC Batch Method: Leaching proceedures Analysis Method: EPA 1311

Analysis Description: TCLP Extraction, SVOC

Trace Project ID: 24L0434

Client Project ID: Lexington State Harbor, Lex-2024-1209

QC Batch: T160723

QC Batch Method: EPA 7471B Prep Analysis Method: EPA 7471B

Analysis Description: Mercury, Total, EPA 7470/7471

Parameter

METHOD BLANK: T160723-BLK1

Units Blank

Result Reporting

Limit Notes

<0.040 0.040Mercury mg/kg wet

LABORATORY CONTROL SAMPLE: T160723-BS1

Parameter Units

Spike

Conc.

LCS

Result

LCS

% Rec % Rec

Limit Notes

0.800 106 80-120Mercury mg/kg wet 0.844

MATRIX SPIKE / MATRIX SPIKE DUPLICATE: T160723-MSD1 Original: 24L0434-01

Parameter Units Original

Result

Spike

Conc.

MS

Result

MSD

Result

MS

% Rec

MSD

% Rec % Rec

Limit RPD Max

RPD Notes

0.830 20380-1200Mercury mg/kg dry 1030.8840.965 106

Trace Project ID: 24L0434

Client Project ID: Lexington State Harbor, Lex-2024-1209

QC Batch: T160870

QC Batch Method: EPA 3015 Microwave Assisted Digestions for…