VICK_07-106-1_FINAL_LSI_Report_0001.pdf

1818 Perimeter Road • Dawsonville, GA 30534 706-579-1607 PHONE • 1-706-265-4916 FAX • www.millcreekenvironmental.com

October 11, 2019

National Park Service Land Resource Program 1849 C Street NW Washington, DC 20240

Attention: Mr. Joe Cook, Realty Specialist joe_cook@nps.gov

Subject: Limited Subsurface Investigation

MDAH Parcel 4966-724 Edwards, Hinds County, Mississippi 39066

Dear Mr. Cook, Mill Creek Environmental, LLC (MCE) has completed a Limited Subsurface Investigation (LSI) for the subject property. The purpose of this investigation was to evaluate for the presence of soil contamination on the subject property that may be present as a result of the operation of a railroad located at the northern property boundary. This LSI was completed at the request of the National Park Service Land Resource Program.

The results of the LSI indicate that regulated compounds are present on the subject property that exceed applicable clean-up standards. Because the contaminants detected are suspected to be from the railroad on an adjacent property, and there are no sources of contamination on the subject property, the owner and purchaser of the subject property are not considered responsible parties and would have no direct liability for the assessment and remediation of the contamination detected.

Since the intended use of the property is for a publically owned part of the National Park System, the NPS may wish to implement engineering controls (limit public access to contaminated areas), institutional controls (file deed restrictions on the contaminated parcel), clean-up the contamination to unrestricted use, or follow MDEQ guidelines to complete a more detailed evaluation of the potential risk of the contamination.

MDEQ clean-up guidelines for uncontrolled sites utilize the MDEQ Brownfield Risk Evaluation Procedures, and would start with a Tier 1 Evaluation. MCE compared levels of contaminants detected to the Tier 1 lookup tables found that several compounds exceed the Tier 1 levels for restricted (deed restriction required) sites. Sites with chemical concentrations in soils that exceed the restricted TRGs may:

1. Clean-up and/or remove the affected media to a value at or below the unrestricted TRG values resulting in an unrestricted land use site;

2. Clean-up and/or remove the affected media to a value at or below the restricted TRG values but above the unrestricted TRG values resulting in a restricted land use site and implement appropriate institutional controls (i.e., land use restriction), or

Mr. Joe Cook October 11, 2019 p:\national park service edwards ms nps-1901\-3 lsi\lsi\report\parts\cover letter.docx

3. Perform a Tier 2 Evaluation

Since concentrations detected exceed the Tier 1 restricted TRGs, and if additional risk assessment is chosen as the preferred alternative, then a Tier 2 evaluation would be the next step in this process. A Tier 2 Evaluation provides the option of performing a more in-depth evaluation of site-specific conditions to develop site-specific Remediation Goals (RG) and/or to better define site-specific data to be used for a Tier 1 Evaluation.

MCE is happy to discuss our conclusions in more detail or provide a scope of work and cost estimate to complete the Tier 2 Evaluation if needed.

If you have any questions, or if MCE can be of assistance in any other capacity, please don’t hesitate to call the undersigned at 706-629-9916.

Sincerely, MILL CREEK ENVIRONMENTAL, LLC

Dan Centofanti, PG, EP Jake Irwin, EP Technical Director Operations Manager

1818 Perimeter Road • Dawsonville, GA 30534 706-579-1607 PHONE • 1-706-265-4916 FAX • www.millcreekenvironmental.com

Limited Subsurface Investigation

Of:

Parcel Number: 4966-724 Edwards, Hinds County, Mississippi 39066

Prepared For:

National Park Service Land Resource Program

1849 C Street NW Washington, DC 20240

Prepared By:

Mill Creek Environmental, LLC 1818 Perimeter Road

Dawsonville, Georgia 30534

MCE Project #: NPS-1901-3

October 2019 i P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report .docx October 11, 2019

TABLE OF CONTENTS

1 CERTIFICATION

2 INTRODUCTION

2.1 PREVIOUS PHASE I ENVIRONMENTAL SITE ASSESSMENT (ESA)

2.2 PURPOSE

2.3 SCOPE OF WORK

2.4 LIMITATIONS

3 SITE DESCRIPTION

4 SUBSURFACE INVESTIGATION PROCEDURES

5 SOIL ANALYTICAL RESULTS

5.1 VOLATILE ORGANIC COMPOUNDS (VOCS)

5.2 HERBICIDES, PESTICIDES AND POLYCHLORINATED BI-PHENYLS (PCBS)

5.3 METALS

5.4 POLYCYCLIC AROMATIC HYDROCARBONS (PAHS)

5.5 TOTAL PETROLEUM HYDROCARBONS (TPH)

5.6 LABORATORY NOTES

6 CONCLUSIONS

LIST OF FIGURES

Figure 1 Site Location Map

Figure 2 Soil Boring Locations

Figure 3a and 3b Soil Analytical Results

LIST OF TABLES

Table 1a Soil Analytical Results - Volatile Organic Compounds

Table 1b Soil Analytical Results - Polycyclic Aromatic Hydrocarbons

Table 1c Soil Analytical Results - Total Metals

Table 1d Soil Analytical Results - Total Petroleum Hydrocarbons

LIST OF APPENDICES

Appendix A Soil Boring Logs

Appendix B Laboratory Analytical Results

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019

1 CERTIFICATION

We have performed this assessment in accordance with generally accepted environmental practices and procedures as of the date of this report. We have employed the degree of care and skill ordinarily exercised under similar circumstances by reputable environmental professionals practicing in this area. The conclusions contained within this assessment are based upon site conditions we readily observed or were reasonably ascertainable and present at the time of my site inspection, reasonably ascertainable regulatory information, and reasonably ascertainable historical information.

The scope of this assessment does not purport to encompass every report, record, or other form of documentation relevant to the property being evaluated. To the best of my knowledge, this Limited Subsurface Investigation has been performed in compliance with ASTM Standard E1903-11 for Phase II Environmental Site Assessments.

We declare that we meet the definition of Environmental Professional as defined in §312.10 of 40 CFR 312 and we have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property.

Prepared By: Reviewed By:

Dylan Wilbanks Dan Centofanti, PG, EP Environmental Scientist Technical Director

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019

Mill Creek Environmental, LLC (MCE) has completed a Limited Subsurface Investigation for a portion of Parcel Number: 4966-724 (the “subject property”) located in Edwards, Hinds County, Mississippi. This investigation was performed at the request of Mr. Joe Cook of the Land Resource Program (LRP) of the National Park Service (NPS), as part of the due diligence process prior to the transfer of ownership. This parcel is to be transferred from the Mississippi Department of Archives and History (MDAH) to the NPS for incorporation into the Vicksburg National Military, Park Champion Hill Unit.

2.1 Previous Phase I Environmental Site Assessment (ESA)

A Phase I ESA of the subject property was completed by MCE of April 19, 2019. Based on the observations and information gathered during the Phase I ESA, the assessment revealed no evidence of recognized environmental conditions (RECs) in connection with the subject property. In order to comply with NPS due diligence procedures, a Limited Subsurface Investigation (LSI) was requested to evaluation the potential for soil contamination on the subject property from an adjacent railroad located along the northern property boundary.

2.2 Purpose

The purpose of this investigation was to evaluate for the presence of soil contamination on the subject property that may be present as a result of the long-term operation of a railroad located at the northern property boundary.

2.3 Scope of Work

The scope of work for this LSI included the following tasks:

TASK 1- Prior to completing subsurface penetrations, MCE obtained utility clearance from Mississippi 811 utilities protection center. In addition, other utility protection measures including a visual assessment of the work area and hand-augering was used, to the extent practicable, to minimize potential damage to underground utilities;

TASK 2- A total of twelve (12) hand auger borings were advanced in predetermined locations along the edge of the railroad right-of-way (ROW), along the northern property boundary. The borings were placed approximately 100 linear feet apart, spanning the length of the northern property boundary;

TASK 3- Continuous soil classification was recorded from each of the hand auger borings and used to determine soil sample intervals;

TASK 4- A total of twenty-four (24) soil samples were collected from the twelve (12) soil borings for laboratory analysis. Each of the twenty-four (24) soil samples was submitted to a certified laboratory and analyzed for volatile organic compounds (VOCs), polycyclic aromatic hydrocarbons (PAHs), total

2 INTRODUCTION

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019 petroleum hydrocarbons (TPH) diesel range organics (DRO), total metals, herbicides, pesticides (organochlorine), and polychlorinated bi-phenyls (PCBs);

TASK 5- This report was prepared to document MCE’s findings and offer recommendations for further action as needed to address site conditions.

2.4 Limitations

The report and any other information which MCE prepared and submitted to the Land Resources Program of the National Parks Service (the users), in connection with this project (the “Report”), are for the sole use and benefit of the users and may not be used or relied upon by any other person or entity without the prior written consent of the users and MCE, except as provided for specifically in the agreement. Any such consent given by MCE will be deemed to be and will be subject to the terms and conditions as MCE may reasonably require, including without limitation a monetary limit to MCE’s liability to any person granted such consent (the “Grantee”), and any such Grantee will be deemed to have agreed to such terms and conditions by its use and reliance on the Report. The use or re-use of this document or the findings, conclusions, or recommendations presented herein, by any other party or parties is at the sole risk of said users.

MCE and the users agree that (1) the information in the Report relates only to the property specifically described in the Report and was presented in accordance with and subject to the scope of work described in the Report or specifically agreed to by MCE and the users; (2) the information and conclusions provided in the Report apply only to the subject property as it existed at the time of MCE’s site examination. Should site use or conditions change or should there be changes in applicable laws, standards, or technology, the information and conclusions in the Report may no longer apply; (3) MCE makes no representations regarding the value or marketability of this property or its suitability for any particular use, and none should be inferred based on the Report;

(4) the Report is intended to be used in its entirety and no excerpts may be taken to be representative of the findings of this investigation; and (5) environmental land-use issues and constraints of possible relevance (e.g., wetland surveys, sensitive habitats, radon, lead paint, asbestos, etc.) were not included in this scope of services.

It should be noted that the information and conclusions provided in this Limited Subsurface Investigation report apply only to the subject property as it existed at the time of MCE’s site evaluation. In addition, the scope of this soil sampling was limited to the analysis of shallow soils along the railroad right-of-way, and does not purport to provide a complete analysis of subsurface conditions at the subject property.

3 SITE DESCRIPTION

The subject property is identified by the Hinds County Tax Assessor as Parcel Number: 4966-724, totaling 15.09 acres in area. Ground cover on the subject property consists of trees and brush. The right-of-way to the Illinois Central Gulf Railroad is located on the northern property boundary.

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019

Bakers Creek forms the western property boundary. The adjoining property to the east is used for the cultivation and growth of various row crops.

A topographic map showing the subject property location is presented as Figure 1.

4 SUBSURFACE INVESTIGATION PROCEDURES

MCE conducted the Limited Subsurface Investigation at the subject property on September 4 and 5, 2019. A total of twelve (12) hand auger borings were advanced in predetermined locations along the northern property boundary. The boring locations were detailed in the Proposal for Limited Subsurface Investigation, dated June 25, 2019. The borings were placed at uniform distances along the northern property boundary, adjacent to the Illinois Central Gulf Railroad ROW. The borings were placed approximately 100 linear feet apart, spanning the length of the northern property boundary. The railroad right-of-way is reported to be approximately 80 feet in total width, or approximately 40 feet from the centerline of the railroad. Telecommunications and natural gas underground utilities were observed paralleling the northern property boundary, immediately inside the railroad right-of way. To avoid potential damage of underground utilities, each soil boring was placed approximately 45 feet from the centerline of the railroad.

Each hand auger boring was advanced to a depth of 4 feet below ground surface (bgs). Continuous soil classification was recorded from each of the hand auger borings and used to determine soil sample intervals. Two (2) soil samples were collected from each hand auger boring, one (1) surficial sample (0-1 ft bgs) and one (1) deeper sample (3-4 ft bgs). Soil borings were assigned boring numbers SB-01 through SB-12, increasing numerically along the northern property boundary from west to east. Each hand auger soil boring was flagged in the field and labeled with indelible ink.

Soil boring locations are depicted on Figure 2, 3a and 3b and soil boring logs are provided in Appendix A.

Soil samples were collected with a stainless steel hand auger that was properly decontaminated between each sampling interval and each boring to limit the potential for cross contamination.

Soil samples were submitted to Pace Analytical Services, LLC in Atlanta, Georgia and analyzed for VOCs by EPA Method 8260B, PAHs by EPA Method 8270E, TPH DRO by modified EPA Method 8015C, total metals by EPA Methods 6010D and 7471B (mercury), herbicides by EPA Method 8151A, pesticides (organochlorine) by EPA Method 8081B, and PCBs by EPA Method 8082A.

5 SOIL ANALYTICAL RESULTS

Soil analytical results are summarized in Tables 1a, 1b, 1c and 1d and analyte detections above Mississippi Department of Environmental Quality (MDEQ) Tier I Target Remediation Goals (TRG) are depicted on Figures 3a and 3b. Laboratory analytical report and chain-of-custody documents are included in Appendix B.

5.1 Volatile Organic Compounds (VOCs)

Each soil sample was analyzed for VOCs by EPA Method 8260B. Acetone was detected in seventeen (17) of the twenty-four (24) soil samples submitted for analysis. The maximum

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019 concentration of acetone in the soil samples analyzed was 0.401 mg/kg in SB-05 (0-1 ft). The Mississippi Department of Environmental Quality (MDEQ) Tier I Target Remediation Goals (TRG) for areas of unrestricted soil use is listed as 7,820 mg/kg. The acetone present in the soil samples is likely to due residual contamination involved with laboratory glassware cleaning or reactions between the sample bottle preservative and natural compounds in the soil. Regardless of the source of acetone, the concentrations observed were below the Tier I TRGs.

No other VOC compounds were detected in the soil samples submitted for analysis.

5.2 Herbicides, Pesticides and Polychlorinated Bi-phenyls (PCBs)

Each soil sample was analyzed for herbicides by EPA Method 8151A, pesticides (organochlorine) by EPA Method 8081B, and PCBs by EPA Method 8082A. No herbicides, pesticides or PCBs were detected in the soil samples submitted for analysis.

5.3 Metals

Each soil sample was analyzed for metals by EPA Methods 6010D and 7471B (mercury). Arsenic, iron, manganese and phosphorus were detected above their respective Tier I TRGs for areas of unrestricted soil use. No other metals were detected above their respective Tier I TRGs.

MDEQ has published literature indicating that concentrations of arsenic naturally occur in this area above the respective Tier I TRGs. The environment in which the soil samples were collected is a floodplain that contains decomposing organic materials that release organic phosphorus during plant decomposition. Because the arsenic and phosphorus were detected in most borings in similar concentrations, and in an environmental setting conducive to organic decomposition, the arsenic and phosphorous appear to be naturally occurring in soils in this area.

5.4 Polycyclic Aromatic Hydrocarbons (PAHs)

Each soil sample was analyzed for PAHs by EPA Method 8270E. PAH compounds were detected in the surficial soil samples (0-1’) collected from soil borings SB-01, SB-02 and SB-04 at concentrations above the most stringent Tier I TRGs. These compounds were not detected in the subsurface soils analyzed at 3-4’ bgs in each of the soil borings. These borings are located within the floodplain of Bakers Creek which is periodically inundated during periods of heavy rainfall.

5.5 Total Petroleum Hydrocarbons (TPH)

Each soil sample was analyzed for TPH diesel range organics (DRO) by EPA Method 8015C. TPH was detected in six (6) of the twenty-four (24) soil samples submitted for analysis. Of the six (6) samples with detections, none exceeded the Tier I TRG value of 300 mg/kg.

5.6 Laboratory Notes

Laboratory detection limits were elevated in some of the samples analyzed resulting in method detection limits (MDLs) that are above their respective Tier I TRGs. The elevated MDLs are primarily a result of matrix interference that occurs during the laboratory analysis. The matrix interference is most commonly due to the presence of non-targeted compounds (i.e. compounds that

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019 are not specifically part of the requested analysis) but are present in samples at concentrations that limit the laboratory’s ability to quantify the concentrations of the targeted compounds.

Regulated compounds were detected on the subject property that exceed applicable clean-up standards. Because the contaminants detected are suspected to be from the railroad on an adjacent property, and there are no sources of contamination on the subject property, the owner and purchaser of the subject property are not considered responsible parties and would have no direct liability for the assessment and remediation of the contamination detected.

Since the intended use of the property is for a publically owned part of the National Park System, the NPS may wish to implement engineering controls (limit public access to contaminated areas), institutional controls (file deed restrictions on the contaminated parcel), clean-up the contamination to unrestricted use, or follow the procedures below to complete a more detailed evaluation of the potential risk of the contamination.

MDEQ clean-up guidelines for uncontrolled sites utilize the MDEQ Brownfield Risk Evaluation Procedures found in MDEQ regulations, Title 11: Mississippi Department of Environmental Quality, Part 3: Hazardous Waste Management Regulations, Chapter 2: Mississippi Commission on Environmental Quality Final Regulations Governing Brownfield Voluntary Cleanup and Redevelopment in Mississippi.

The regulations utilize risk-based criteria for site evaluation and remediation. MCE compared levels of contaminants detected to the Tier 1 lookup tables in the rules and found that several compounds exceed the Tier 1 levels for restricted (deed restriction required) sites. Sites with chemical concentrations in soils that exceed the restricted TRGs may:

1. Clean-up and/or remove the affected media to a value at or below the unrestricted TRG values resulting in an unrestricted land use site;

2. Clean-up and/or remove the affected media to a value at or below the restricted TRG values but above the unrestricted TRG values resulting in a restricted land use site and implement appropriate institutional controls (i.e., land use restriction), or

3. Perform a Tier 2 Evaluation

The Tier 1 risk based evaluation process also requires completion of a Conceptual Exposure Model, a detailed Site Characterization, and an Ecological Checklist.

Since concentrations detected exceed the Tier 1 restricted TRGs, and if additional risk assessment is chosen as the preferred alternative, then a Tier 2 evaluation would be the next step in this process. A Tier 2 Evaluation provides the option of performing a more in-depth evaluation of site-specific conditions to develop site-specific Remediation Goals (RG) and/or to better define site-specific data to be used for a Tier 1 Evaluation. The Tier 2 Evaluation may include, but is not limited to, an evaluation of site-specific conditions by:

1. Utilizing statistical methods and comparing the results to the Tier 1 TRGs;

6 CONCLUSIONS

Edwards, Hinds County, Mississippi 39066

P:\NPS\Parcel # 4966-724\NPS-1901-3\Limited Subsurface Investigation Report.docx October 11, 2019

2. Comparing exposure point concentrations (EPCs) to calculated background chemical concentrations;

3. Comparing EPCs to calculated regionally prevalent chemical concentrations;

4. Utilizing site-specific variables (i.e., exposure frequency, exposure duration, etc.) to calculate site-specific RGs;

5. Eliminating or minimizing exposure to contaminants;

6. Conducting analysis of Petroleum Hydrocarbons using TPH Fractioning; or

7. Utilizing other methods approved by MDEQ.

The Tier 2 risk based evaluation process also requires completion of a Conceptual Exposure Model, a detailed Site Characterization, and an Ecological Checklist.

MCE is happy to discuss our conclusions in more detail or provide a scope of work and cost estimate to complete the Tier 2 Evaluation if needed.

Figures

Tables

Acetone

SB-01 (0-1') 0-1 9/4/2019 0.344

SB-01 (3-4') 3-4 9/4/2019 <6.410

SB-02 (0-1') 0-1 9/4/2019 0.289

SB-02 (3-4') 3-4 9/4/2019 0.275

SB-03 (0-1') 0-1 9/4/2019 0.218

SB-03 (3-4') 3-4 9/4/2019 0.173

SB-04 (0-1') 0-1 9/4/2019 0.236

SB-04 (3-4') 3-4 9/4/2019 <0.111

SB-05 (0-1') 0-1 9/4/2019 0.401

SB-05 (3-4') 3-4 9/4/2019 <0.110

SB-06 (0-1') 0-1 9/4/2019 0.346

SB-06 (3-4') 3-4 9/4/2019 0.132

SB-07 (0-1') 0-1 9/5/2019 0.319

SB-07 (3-4') 3-4 9/5/2019 <0.106

SB-08 (0-1') 0-1 9/5/2019 <0.161

SB-08 (3-4') 3-4 9/5/2019 0.112

SB-09 (0-1') 0-1 9/5/2019 <0.164

SB-09 (3-4') 3-4 9/5/2019 0.373

SB-10 (0-1') 0-1 9/5/2019 0.362

SB-10 (3-4') 3-4 9/5/2019 <0.145

SB-11 (0-1') 0-1 9/5/2019 0.331

SB-11 (3-4') 3-4 9/5/2019 <0.113

SB-12 (0-1') 0-1 9/5/2019 0.272

SB-12 (3-4') 3-4 9/5/2019 0.321

7,820

NOTE: mg/kg = milligrams per kilogram ft/BGS = Feet Below Ground Surface

BRL = Below Laboratory Reporting Limit

NA = Not Applicable

Sample ID Depth

(ft/BGS)

Edwards, Hinds County, Mississippi 39066

Parcel Number: 4966-724

Date

Sampled

TABLE 1a: SOIL ANALYTICAL RESULTS - SUMMARY OF DETECTED COMPOUNDS

(Volatile Organic Compounds)

Detected VOCs (mg/kg)

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for unrestricted soil use.

Applicable Standards (Unrestricted)

Tables _Draft for Edwards MS 1 of 4 10/10/2019

B en zo (a

)a n th ra ce n e

B en zo (a

)p y re n e

B en zo (b

)f lu o ra n th en e

B en zo (g

,h ,i

)p er le n e

B en zo (k

)f lu o ra n th en e

C h ry se n e

D ib en z( a, h

)a n th ra ce n e

F lu o ra n th en e

In d en o

(1 ,2

,3 -c d )p y re n e

P h en an th re n e

P y re n e

SB-01 (0-1') 0-1 9/4/2019 2.360 2.130 3.070 1.380 2.870 2.080 0.694 1.600 1.550 <0.393 1.670

SB-01 (3-4') 3-4 9/4/2019 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385

SB-02 (0-1') 0-1 9/4/2019 10.600 8.920 13.300 4.980 11.700 9.880 <4.130 13.300 4.990 <4.13 21.200

SB-02 (3-4') 3-4 9/4/2019 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 0.512

SB-03 (0-1') 0-1 9/4/2019 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366 <0.366

SB-03 (3-4') 3-4 9/4/2019 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385 <0.385

SB-04 (0-1') 0-1 9/4/2019 1.510 1.530 2.240 0.874 1.910 1.770 <0.407 2.890 0.911 0.554 3.390

SB-04 (3-4') 3-4 9/4/2019 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406 <0.406

SB-05 (0-1') 0-1 9/4/2019 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471 <0.471

SB-05 (3-4') 3-4 9/4/2019 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412

SB-06 (0-1') 0-1 9/4/2019 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383 <0.383

SB-06 (3-4') 3-4 9/4/2019 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412 <0.412

SB-07 (0-1') 0-1 9/5/2019 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373 <0.373

SB-07 (3-4') 3-4 9/5/2019 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398 <0.398

SB-08 (0-1') 0-1 9/5/2019 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416 <0.416

SB-08 (3-4') 3-4 9/5/2019 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422 <0.422

SB-09 (0-1') 0-1 9/5/2019 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361 <0.361

SB-09 (3-4') 3-4 9/5/2019 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369 <0.369

SB-10 (0-1') 0-1 9/5/2019 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371 <0.371

SB-10 (3-4') 3-4 9/5/2019 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391

SB-11 (0-1') 0-1 9/5/2019 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401 <0.401

SB-11 (3-4') 3-4 9/5/2019 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391 <0.391

SB-12 (0-1') 0-1 9/5/2019 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402 <0.402

SB-12 (3-4') 3-4 9/5/2019 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387 <0.387

0.875 0.0875 0.875 2,350 8.75 87.5 0.0875 3,130 0.875 2,350 2,350

7.84 0.784 7.84 61,300 78.4 784 0.784 81,700 7.84 61,300 61,300

NOTE: mg/kg = milligrams per kilogram ft/BGS = Feet Below Ground Surface

BRL = Below Laboratory Reporting Limit

NA = Not Applicable

Bold results indicate that method detection limits (MDLs) for method 8270E exceeded MDEQ Tier I TRGs for unrestricted soil use.

Light shading indicates exceedance of MDEQ Tier I TRGs for unrestricted soil use.

TABLE 1b: SOIL ANALYTICAL RESULTS - SUMMARY OF DETECTED COMPOUNDS

(POLYCYCLIC AROMATIC HYDROCARBONS)

Sample ID Depth

(ft/BGS)

Applicable Standards (Unrestricted)

Dark shading indicates exceedance of MDEQ Tier I TRGs for restricted soil use.

MDAH Parcel 4966-724

Edwards, Hinds County, Mississippi 39066

Date

Sampled

Detected PAHs (mg/kg)

Applicable Standards (Restricted)

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for unrestricted soil use.

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for restricted soil use.

Tables _Draft for Edwards MS 2 of 4 10/10/2019

A lu m in u m

A rs en ic

B ar iu m

C ad m iu m

C al ci u m

C h ro m iu m

C o b al t

C o p p er

Ir o n

L ea d

M ag n es iu m

M an g an es e

N ic k el

P h o sp h o ru s

P o ta ss iu m

S o d iu m

T it an iu m

V an ad iu m

Z in c

SB-01 (0-1') 0-1 9/4/2019 4,090 5.1 91.7 1.7 1,760 11.7 6.3 11.5 20,100 221 1,030 724 10.1 376 445 <110 146 12.2 34.8

SB-01 (3-4') 3-4 9/4/2019 6,280 4.2 103 <1.1 839 8.1 6.0 10 12,000 14.8 1,420 550 10.7 314 527 <110 210 17.2 34.3

SB-02 (0-1') 0-1 9/4/2019 4,960 5.3 117 <1.2 2,680 8.5 5.8 9.0 11,700 53.2 1,180 675 10.9 484 515 <119 174 14.4 45.6

SB-02 (3-4') 3-4 9/4/2019 4,250 <3.3 140 <1.1 1,090 6.5 4.7 5.0 7,320 8.8 949 722 10.6 227 343 <111 134 10.9 34.7

SB-03 (0-1') 0-1 9/4/2019 4,610 <3.2 114 <1.1 1,370 6.6 5.0 9.6 8,000 12.6 1,020 703 9.4 316 462 <107 154 12.2 31.9

SB-03 (3-4') 3-4 9/4/2019 4,070 <3.5 67.2 <1.2 962 5.0 <4.7 3.8 6,240 5.4 802 442 6.0 198 276 <118 139 9.6 21.0

SB-04 (0-1') 0-1 9/4/2019 7,490 5.9 101 <1.2 1,380 10.3 5.5 9.1 13,700 17.8 1,710 340 12.0 619 628 <117 244 21.3 47.7

SB-04 (3-4') 3-4 9/4/2019 4,600 <3.7 145 <1.2 644 7.1 5.7 3.9 9,150 7.0 1,020 579 8.1 403 337 <141 120 13.6 28.1

SB-05 (0-1') 0-1 9/4/2019 6,680 <4.2 143 <1.4 1,660 9.0 <5.6 7.9 9,770 14.8 1,640 127 11.4 510 558 <141 226 17.8 45.0

SB-05 (3-4') 3-4 9/4/2019 8,110 <3.5 133 <1.2 1,390 8.8 11.6 7.0 11,500 10.1 1,660 1,040 10.1 371 439 <118 254 17.4 36.9

SB-06 (0-1') 0-1 9/4/2019 7,760 4.7 181 1.3 1,400 9.9 7.0 9.2 13,100 14.4 1,450 1,220 14.8 512 528 <109 223 19.2 46.1

SB-06 (3-4') 3-4 9/4/2019 7,140 <3.6 100 <1.2 550 9.1 <4.8 5.2 9,040 6.9 1,200 349 8.5 338 413 <120 197 15.0 31.0

SB-07 (0-1') 0-1 9/5/2019 7,210 6.4 132 <1.1 1,070 8.9 7.1 8.5 12,600 13.1 1,430 1,150 13.2 490 497 <109 216 19.7 39.1

SB-07 (3-4') 3-4 9/5/2019 7,240 <3.7 98.4 <1.2 1,360 9.0 <4.9 4.7 10,600 8.4 1,570 460 8.2 273 401 <122 161 17.5 30.4

SB-08 (0-1') 0-1 9/5/2019 6,100 7.1 94.4 <1.2 2,030 8.5 5.4 7.6 11,500 12.2 1,540 264 10.3 514 485 <117 206 18.0 39.7

SB-08 (3-4') 3-4 9/5/2019 6,320 7.7 134 1.3 1,410 9.3 8.5 8.1 16,000 11.1 1,710 1420 14.8 482 487 <128 202 21.0 37.6

SB-09 (0-1') 0-1 9/5/2019 8,610 4.8 81.1 <1.1 713 9.7 <4.3 5 12,800 7.6 1,330 252 8.7 407 491 <108 299 20.9 29.1

SB-09 (3-4') 3-4 9/5/2019 9,240 6.1 87.1 1.1 743 10.0 6.0 5.2 14,600 9.1 1,360 387 9.1 466 507 <106 315 23.7 31.8

SB-10 (0-1') 0-1 9/5/2019 5,530 <3.4 108 <1.1 1,950 6.6 7.0 8.6 10,100 16.4 1,140 1,140 10.7 466 445 <113 188 15.8 36.1

SB-10 (3-4') 3-4 9/5/2019 10,800 12.9 66.5 1.8 861 12.2 10.6 15.8 30,700 17.7 2,870 671 17.9 475 710 375 366 30.1 59.8

SB-11 (0-1') 0-1 9/5/2019 9,830 10.8 127 1.5 1,190 11.7 14.2 11.7 18,600 21.4 1,820 1,640 15.0 853 945 <117 347 28.9 57.2

SB-11 (3-4') 3-4 9/5/2019 5,920 <3.2 63.0 <1.1 246 7.3 <4.3 3.8 7,920 6.5 786 213 6.3 293 370 <108 130 14.0 20.2

SB-12 (0-1') 0-1 9/5/2019 8,290 10.3 79.1 1.2 795 10.3 8.0 10.1 15,000 16.7 1,530 919 11.2 675 894 <116 304 24.0 41.3

SB-12 (3-4') 3-4 9/5/2019 6,050 <3.5 101 <1.2 629 7.4 7.6 4.8 10,200 9.3 890 1,150 7.4 318 545 <118 135 16.1 23.8

78,200 0.426 5,480 39.1 NL NL 4,690 3,130 23,500 400 NL 1,560 1,560 1.56 NL NL 313,000 548 23,500

2,040,000 3.82 14,300 1,020 NL NL 12,300 8170 613,000 1,700 NL 4,080 4,080 40.9 NL NL 8,180,000 1,430 61,300

NOTE: mg/kg = milligrams per kilogram ft/BGS = Feet Below Ground Surface

BRL = Below Laboratory Reporting Limit

NL-No listed in MDEQ-Tier I TRG

NA = Not Applicable

Dark shading indicates exceedance of MDEQ Tier I TRGs for restricted soil use.

Bold results indicate that method detection limits (MDLs) for method 8270E exceeded MDEQ Tier I TRGs for unrestricted soil use.

Depth

(ft/BGS)

Date

Sampled

Detected Metals (mg/kg)

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for unrestricted soil use.

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for restricted soil use.

Light shading indicates exceedance of MDEQ Tier I TRGs for unrestricted soil use.

MDAH Parcel 4966-724

Edwards, Hinds County, Mississippi 39066

TABLE 1c: SOIL ANALYTICAL RESULTS - SUMMARY OF DETECTED COMPOUNDS

Applicable Standards (Unrestricted)

Applicable Standards (Restricted)

(Total Metals)

Sample ID

Tables _Draft for Edwards MS 3 of 4 10/10/2019

DRO (C10-C28)

SB-01 (0-1') 0-1 9/4/2019 46.2

SB-01 (3-4') 3-4 9/4/2019 <8.2

SB-02 (0-1') 0-1 9/4/2019 299

SB-02 (3-4') 3-4 9/4/2019 <8.6

SB-03 (0-1') 0-1 9/4/2019 <7.8

SB-03 (3-4') 3-4 9/4/2019 <8.2

SB-04 (0-1') 0-1 9/4/2019 79.1

SB-04 (3-4') 3-4 9/4/2019 <8.8

SB-05 (0-1') 0-1 9/4/2019 <10.0

SB-05 (3-4') 3-4 9/4/2019 <8.8

SB-06 (0-1') 0-1 9/4/2019 <8.2

SB-06 (3-4') 3-4 9/4/2019 <8.8

SB-07 (0-1') 0-1 9/5/2019 <7.9

SB-07 (3-4') 3-4 9/5/2019 <8.5

SB-08 (0-1') 0-1 9/5/2019 9.0

SB-08 (3-4') 3-4 9/5/2019 <8.9

SB-09 (0-1') 0-1 9/5/2019 <7.7

SB-09 (3-4') 3-4 9/5/2019 <7.9

SB-10 (0-1') 0-1 9/5/2019 17.7

SB-10 (3-4') 3-4 9/5/2019 <8.4

SB-11 (0-1') 0-1 9/5/2019 10.8

SB-11 (3-4') 3-4 9/5/2019 <8.3

SB-12 (0-1') 0-1 9/5/2019 <8.6

SB-12 (3-4') 3-4 9/5/2019 <8.2

NOTE: mg/kg = milligrams per kilogram ft/BGS = Feet Below Ground Surface

BRL = Below Laboratory Reporting Limit

NA = Not Applicable

Sample ID Depth

(ft/BGS)

Date

Sampled

Detected TPH (mg/kg)

Applicable Standards (Unrestricted)

Mississippi Department of Environmental Quality-Tier I Targeted Remediation Goals for unrestricted soil use.

MDAH Parcel 4966-724

Edwards, Hinds County, Mississippi 39066

TABLE 1d: SOIL ANALYTICAL RESULTS - SUMMARY OF DETECTED COMPOUNDS

(Total Petroleum Hydrocarbons)

Tables _Draft for Edwards MS 4 of 4 10/10/2019

Appendix A Soil Boring Logs

LOG OF SOIL BORING Page 1 of 1

Client: National Parks Service Boring No.: SB-01

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

(feet) INTERVAL LITHOLOGIC DESCRIPTION CLASS 0-6 6-12 12-18 18-24 (ppm) REC

(inches) 6" 12" 18" 24"

1 SL 0.0 Sample SB-01 (0-1 ft)

3 SL 0.0

4 SL 0.0 Sample SB-01 (3-4 ft)

Screen Interval: Locking Cap:

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

Bags Bentonite:

Bags Cement:

Installation Observed By: Dylan Wilbanks and Drew Heimlich

SILTY LOAM, dark brown2-12

Boring terminated at 4 feet BGS

12-36 SILTY LOAM, tan, grey mottles

LOAM, light brown, clumps, forms ball36-48

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

DIAGRAM

Boring Logs_9-4&5-19

Client: National Parks Service Boring No.: SB-02

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-02 (0-1 ft)

4 SL 0.0 Sample SB-02 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

MONITORING

WELL

DIAGRAM

LOAM, tan/ brown, clumps, forms ball

Boring terminated at 4 feet BGS

12-36 SILTY LOAM, tan

36-48

2-12 SILTY LOAM, dark brown, lighter at bottom

1818 Perimeter Road

Dawsonville, GA 30534

Client: National Parks Service Boring No.: SB-03

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-03 (0-1 ft)

4 SL 0.0 Sample SB-03 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, light tannish brown

36-48 SILTY LOAM, light tannish brown, redox mottles

Boring terminated at 4 feet BGS

2-12 SILTY LOAM,soft, tannish brown, forms ball

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-04

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-04 (0-1 ft)

4 SL 0.0 Sample SB-04 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, tan/brown

36-48 SILTY LOAM, light brown, very moist, increase in redox

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-05

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-05 (0-1 ft)

4 SL 0.0 Sample SB-05 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, very moist, brown, redox colors

36-48 SILTY LOAM, very moist, brown, redox colors

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown, redox near top

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-06

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-06 (0-1 ft)

4 SL 0.0 Sample SB-06 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, brown

36-48 SILTY LOAM, brown, increase in moisture, small clumps

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-07

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-07 (0-1 ft)

4 SL 0.0 Sample SB-07 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, brown, icrease moisture with depth, increase in clumpiness and redox colors with depth

36-48 SILTY LOAM, brown, icrease moisture with depth, increase in clumpines and redox colors with depth

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-08

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-08 (0-1 ft)

4 SCL 0.0 Sample SB-08 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, brown, some grey color

36-48 SILTY CLAY LOAM, mostly redox colors, saturated, play-doh/wet clay consistency, no standing water

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown, loose

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-09

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-09 (0-1 ft)

4 SL 0.0 Sample SB-09 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, brown

36-48 SILTY LOAM, brown, redox colors

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-10

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-10 (0-1 ft)

4 SL 0.0 Sample SB-10 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, light brown

36-48 SILTY LOAM, light brown, some redox

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, light brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-11

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-11 (0-1 ft)

4 SL 0.0 Sample SB-11 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, tan/brown, grey mottles

36-48 SILTY LOAM, tan/brown, grey mottles

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, tan/brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Client: National Parks Service Boring No.: SB-12

Mill Creek Job No.: NPS-1901-3 Well Number: N/A

Environmental Services Job Name: Parcel Number: 4966-724 Well Depth: N/A

1818 Perimeter Road Date Installed: 9/4/2019 Well Diam.: N/A

Dawsonville, Georgia 30534 Installed By: Dylan Wilbanks and Drew Heimlich Screen Length: N/A

Drilling Company: N/A Screen Material: N/A

Boring Depth: BT @ 4 feet Slot Size: N/A

Boring Diam.: 3 inches GW Level: N/A

Drilling Method: Hand Auger TOC Elev.: N/A

DEPTH SAMPLE USCS BLOW COUNTS PID %

1 SL 0.0 Sample SB-01 (0-1 ft)

4 SL 0.0 Sample SB-01 (3-4 ft)

Casing Interval: Bottom Cap:

Sand Interval: Type of Cover:

Bentonite Interval: Water Level at 24 Hours:

Grout Interval: REMARKS:

Bags Sand:

12-36 SILTY LOAM, tan, grey mottles

36-48 SILTY LOAM, mostly redox

Boring terminated at 4 feet BGS

2-12 SILTY LOAM, light brown

1818 Perimeter Road

Dawsonville, GA 30534

MONITORING

WELL

Appendix B Laboratory Analytical Results

#=CL#

September 17, 2019

LIMS USE: FR - ERIC LOWE

LIMS OBJECT ID: 2622821

2622821 Project:

Pace Project No.:

RE:

Eric Lowe

Mill Creek Vicksburg, MS

Dear Eric Lowe:

Enclosed are the analytical results for sample(s) received by the laboratory on September 06, 2019.

The results relate only to the samples included in this report. Results 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, Bonnie Vang bonnie.vang@pacelabs.com

Project Manager (770)734-4200

Enclosures cc: Dylan Wilbanks

REPORT OF LABORATORY ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Pace Analytical Services, LLC 110 Technology Parkway

Peachtree Corners, GA 30092 (770)734-4200

Dylan Cross-Out

#=CP#

CERTIFICATIONS

Pace Project No.:

Project:

2622821 Mill Creek Vicksburg, MS

Atlanta Certification IDs 110 Technology Parkway Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 Georgia DW Microbiology Certification #: 812

North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204

REPORT OF LABORATORY ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.

Pace Analytical Services, LLC 110 Technology Parkway

Peachtree Corners, GA 30092 (770)734-4200

#=AR#

ANALYTICAL RESULTS

Pace Project No.:

Project:

2622821 Mill Creek Vicksburg, MS

Sample: SB-01 (0-1) Lab ID: 2622821001 Collected: 09/04/19 09:50 Received: 09/06/19 12:47 Matrix: Solid Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions.

Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit

Analytical Method: EPA 8015C Preparation Method: EPA 35468015C GCS DRO Solid

DRO (C10-C28) 46.2 mg/kg 09/11/19 17:3809/10/19 11:008.3 1 Surrogates o-Terphenyl (S) 89 %. 09/11/19 17:38 84-15-109/10/19 11:0050-150 1

Analytical Method: EPA 8081B Preparation Method: EPA 35468081 GCS Pesticide Solids

Aldrin ND ug/kg 09/11/19 11:49 309-00-2 L109/10/19 19:0039.0 10 alpha-BHC ND ug/kg 09/11/19 11:49 319-84-6 D3,L109/10/19 19:0039.0 10 beta-BHC ND ug/kg 09/11/19 11:49 319-85-7 L109/10/19 19:0039.0 10 delta-BHC ND ug/kg 09/11/19 11:49 319-86-8 L109/10/19 19:0039.0 10 gamma-BHC (Lindane) ND ug/kg 09/11/19 11:49 58-89-9 L109/10/19 19:0039.0 10 Chlordane (Technical) ND ug/kg 09/11/19 11:49 57-74-909/10/19 19:00201 10 alpha-Chlordane ND ug/kg 09/11/19 11:49 5103-71-909/10/19 19:00201 10 gamma-Chlordane ND ug/kg 09/11/19 11:49 5103-74-209/10/19 19:00201 10 4,4'-DDD ND ug/kg 09/11/19 11:49 72-54-809/10/19 19:0039.0 10 4,4'-DDE ND ug/kg 09/11/19 11:49 72-55-909/10/19 19:0039.0 10 4,4'-DDT ND ug/kg 09/11/19 11:49 50-29-309/10/19 19:0039.0 10 Dieldrin ND ug/kg 09/11/19 11:49 60-57-1 L109/10/19 19:0039.0 10 Endosulfan I ND ug/kg 09/11/19 11:49 959-98-8 L109/10/19 19:00201 10 Endosulfan II ND ug/kg 09/11/19 11:49 33213-65-909/10/19 19:00201 10 Endosulfan sulfate ND ug/kg 09/11/19 11:49 1031-07-809/10/19 19:00201 10 Endrin ND ug/kg 09/11/19 11:49 72-20-809/10/19 19:0078.0 10 Endrin aldehyde ND ug/kg 09/11/19 11:49 7421-93-409/10/19 19:0078.0 10 Endrin ketone ND ug/kg 09/11/19 11:49 53494-70-509/10/19 19:0078.0 10 Heptachlor ND ug/kg 09/11/19 11:49 76-44-8 L109/10/19 19:0039.0 10 Heptachlor epoxide ND ug/kg 09/11/19 11:49 1024-57-309/10/19 19:0039.0 10 Methoxychlor ND ug/kg 09/11/19 11:49 72-43-509/10/19 19:00117 10 Toxaphene ND ug/kg 09/11/19 11:49 8001-35-209/10/19 19:00780 10 Surrogates Decachlorobiphenyl (S) 339 %. 09/11/19 11:49 2051-24-3 S409/10/19 19:0010-151 10 Tetrachloro-m-xylene (S) 132 %. 09/11/19 11:49 877-09-809/10/19 19:0014-136 10

Analytical Method: EPA 8082A Preparation Method: EPA 35468082 GCS PCB

PCB-1016 (Aroclor 1016) ND ug/kg 09/12/19 18:01 12674-11-209/10/19 19:00195 5 PCB-1221 (Aroclor 1221) ND ug/kg 09/12/19 18:01 11104-28-209/10/19 19:00195 5 PCB-1232 (Aroclor 1232) ND ug/kg 09/12/19 18:01 11141-16-509/10/19 19:00195 5 PCB-1242 (Aroclor 1242) ND ug/kg 09/12/19 18:01 53469-21-909/10/19 19:00195 5 PCB-1248 (Aroclor 1248) ND ug/kg 09/12/19 18:01 12672-29-609/10/19 19:00195 5 PCB-1254 (Aroclor 1254) ND ug/kg 09/12/19 18:01 11097-69-109/10/19 19:00195 5 PCB-1260 (Aroclor 1260) ND ug/kg 09/12/19 18:01 11096-82-509/10/19 19:00195 5 Surrogates Decachlorobiphenyl (S) 49 %. 09/12/19 18:01 2051-24-3 1A09/10/19 19:0012-139 5

Analytical Method: EPA 8151A Preparation Method: EPA 8151A8151A Cl Acid Herbicide Solids

2,4-D ND mg/kg 09/12/19 20:14 94-75-709/10/19 10:451.0 5 Dalapon ND mg/kg 09/12/19 20:14 75-99-009/10/19 10:452.0 5 2,4-DB ND mg/kg 09/12/19 20:14 94-82-6 M109/10/19 10:451.0 5

REPORT OF LABORATORY ANALYSIS

This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/17/2019 05:56 PM

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Project:

2622821 Mill Creek Vicksburg, MS

Sample: SB-01 (0-1) Lab ID: 2622821001 Collected: 09/04/19 09:50 Received: 09/06/19 12:47 Matrix: Solid Results reported on a "dry weight" basis and are adjusted for percent moisture, sample size and any dilutions.

Parameters Results Units DF Prepared Analyzed CAS…