20230175 Ver 1_Finch Dam (JOHNS-035) Emergency Breach Submittal_20230130

FINCH DAM (JOHNS-035)
EMERGENCY BREACH SUBMITTAL
Johnston County, North Carolina
mcgill
5400 Trinity Avenue, Suite 107
Raleigh, NC 27607
Firm License No.: C-0459
October 2022
PROJECT NO. 22.03013
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mcgill.
October 25, 2022
Mr. William H. Denton, IV, PE
Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral and Land Resources
Dam Safety Program
Physical Address/Courier:
512 North Salisbury Street
Raleigh, NC 27604
USPS Mailing Address:
1612 Mail Service Center
Raleigh, NC 27699-1612
Mailed via Fed Ex to physical address
Digital submittal to: DamSafety()ncdenr.gov, Bill Denton bill.denton(a)ncdenr.gov
RE: Record Drawings for Removal
Finch Dam (JOHNS-035)
Dear Mr. Denton:
Finch Dam (JOHNS-035) removal was completed pursuant to the Certificate of Approval dated
June 21, 2022, as shown in the attached record drawings (Attachment A). The complete
construction cost for the project was $138,490.26, which requires an additional fee of $2,381.82
as shown in the Dam Application Fee Calculator, Owners' Certification forms, and supporting
documentation in Attachment B. Check Number 053759 for the additional fee is enclosed with
this submittal.
In addition to the record drawing, below is an update on items discussed during the permit
process or discovered after the permit:
a. McGill completed an investigation of the sediment in the pond to evaluate the risk of
contamination. The evaluation and testing results showed little sediment in the pond and
that the contamination levels were not indicative of impact, and therefore that no
notification to NCDEQ was required (Attachment C).
b. The standpipe, pond bottom, and channel invert downstream of the dam were about two
to three feet lower than what was anticipated during design using LiDAR. The breach
was therefore excavated lower to match existing upstream and downstream inverts. The
bottom width was maintained at 25 feet as designed.
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 / 919.37&9111 / MCGILLASSOCIATES.COM

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me ill.
c. A wall was present at about the center of the dam. The wall width varied between 12 and
30 inches. The top of the wall was about 8 feet below the top of the dam. The wall was
removed within the extent of the breach.
d. Vegetation has taken hold through most on the pond by completion of construction.
Initially, the removal was permitted as a two -stage construction: (1) temporary breach to
alleviate the emergency associated with piping, and (2) permanent breach after completion of
the sediment investigation. Due to the above additional information, sediment contamination
and migration is no longer a concern and the riprap at the bottom of the breach no longer
functions as a check dam as the breach provides more conveyance capacity due to the lowering
of the breach bottom. Therefore, we are requesting the breach as constructed to be considered
a permanent breach.
The following photos and captions are provided for support of the above findings and
recommendation as well as to show that no impoundment was noted following several hours of
rain from Hurricane Ian.
View of the bottom of the breach, liner, and #57stone. A portion of the uncovered wall is showing in the photo (wall was
completely removed from breach extent after).
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 / 919.37&9111 / MCGILLASSOOATES.COM

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Close up view of the wall.
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 / 919.37&9111 / MCGILLASSOCIATES.COM

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_2'a> V5 �•f y y_ a ^nc_+-. ' --sue _
Overviews of the completed breach
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 / 919.37&9111 / MCGILLASSOCIATES.COM

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me Ill
Bottom of the breach, upstream side
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 / 919.37&9111 / MCGILLASSOCIATES.COM

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Picture taken by Caterpillar on September 30, 2022, around 11:00 AM after it had been raining for several hours.
Please let us know if NC Dam Safety is agreeable to accepting the breach in its current
condition as final. We would welcome a joint site inspection at a mutually convenient time to
inspect the breach if needed.
Sincerely,
MCGILL ASSOCIATES, P.A.
DORI SABER, PE, GISP
Director of Water Resources/Practice Area Leader
eCc: David Auge david.auge(o-)grifols.com; Nathan Strickler Strickler Nathan R(o-)-cat.com;
Josh Colley iosh.colley(a)ncdenr.gov; Hadush Hagos hadush.hagos(a)ncdenr.gov; Ben
Cathey Ben. Cathey a)mcgillassociates.com
Attachments: Attachment A - JOHNS-035 Record Drawings
Attachment B - JOHNS-035 Additional Fee Calculator
Attachment C - JOHNS-035 Sediment Testing Results
MCGILL ASSOCIATES 5400 TRINITY ROAD, SUITE 107, RALEIGH, NC 27607 f 919.37&9111 / MCGILLASSOCIATES.COM

ATTACHMENT A -
JOHNS-035 RECORD DRAWINGS

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ATTACHMENT B -
JOHNS-035 ADDITIONAL FEE CALCULATOR

State Dam ID (if applicable): => JOHNS-035
Dam Name: ___________> Finch Dam
County: ______________> Johnston County
1CONSTRUCTION, ENLARGEMENT, OR REMOVAL OF A DAM
COST OF COMPLETED PROJECT: $138,790.26
ADDITIONAL FEE: $2,381.82
Note: Maximum Additional Application Processing Fee is $50,000.00 (15A NCAC 02K .0222(d))
https://deg.nc.gov/about/divisions/energy-mineral-land-resources/energy-mineral-land-permits/dam-safety-pern

nits/fees

Energy, Funeral
and Land Resources
ENVIRONMENTA#. QUALITY
OwnerCostCertform 'revised 04/05/18)
OWNER'S CERTIFICATION
AFFIDAVIT OF ACTUAL COST OF CONSTRUCTION, ENLARGEMENT OR REMOVAL OF DAM
(COST OF COMPLETED PROJECT)
1. Name of Dam (STATE -ID): JOHNS-035
2. County in which Dam is Located: Johnston County
3. Darn Owner
a. Name: Grifols Therapeutics LLC
b. Address (Street, City, State, Zip): 8368 US 70 Bus Hwy W, E750, 3045E.08, Clayton, NC 27520
c. Phone No.: 919.359.4375
d. Email: [e-mail]
4. Authorized Representative of Owner (if applicable)
a. Name: David Auqe
b. Address (Street, City, State, Zip):
c. Phone No.:
d. Email:
5. Engineer of Record
a. Name: Dori Sabeh, PE
b. Address (Street, City, State, Zip): 5400 Trinity Rd, St 107, Raleiqh, NC 27607
c. Phone No.: 919.364.3989
d. Email: dori.sabeh(a?mcaillassociates.com
6. Actual Cost of (ConstructionD, Modification, or Removal} of dams: $ 139,790.26
7. Additional Application Processing Fee Enclosed: $ 2,381.82
In accordance with § 143-215.28A. and 15A NCAC 02K .0222, I, , agree that the
above information is true and correct to the best of my knowledge and belief and was provided by me under oath.
Type and PrIint ame: ,d - t l Title of Authority:
Signature: xla2 Date:
1: Attach contractual documentation for project which includes lump sum bid price or unit bid quantities with prices; all
change order items costs, etc. An approval will not be issued if documentation for the actual cost of
construction/enlargementtremoval and the additional application processing fee are not provided.

Page 2 of 2
' a Notary P blic of the County of :ah n:! M in
the State of North Carolina, hereby certify that appeared personally
before me this day and being duly sworn acknowledge that the above form as executed by him/her.
Witness my hand and notarial seal, this l day of Uc 20�Q
Seal: Notary: },j-O F ,!='
v IOTA fit I
W
COMMA M EXPIRES
0 PUBOG
N-�kp+o'
CO�>�
My Commission Expires: !ty
State ofNorth Carolina I Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1 512 N. Salisbury St. I Raleigh, NC 27699
919 707 9220 T

1
Energy, Mineral
and Land Resources
ENVtA1DNMENTAL GUALlTY
awnerCostCert£orm (revised o4/o5/1a)
OWNER'S CERTIFICATION
AFFIDAVIT OF ACTUAL COST OF CONSTRUCTION, ENLARGEMENT OR REMOVAL OF DAM
(COST OF COMPLETED PROJECT)
1. Name of Dam (STATE -ID): JOHNS-035
2. County in which Dam is Located: Johnston County
3. Dam Owner
a. Name: Caterpillar, Inc
b. Address (Street, City, State, Zip): 954 NC Hiqhway 42 East Clayton, NC 27527
c. Phone No.: 984-278-0181
d. Email: [e-mail]
4, Authorized Representative of Owner (if applicable)
a. Name: David Emonson
b. Address (Street, City, State, Zip):
c. Phone No.:
d. Email:
5. Engineer of Record
a. Name: Dori Sabeh, PE
b. Address (Street, City, State, Zip): 5400 Trinity Rd, St 107, Raleigh, NC 27607
e. Phone No.: 919.364.3989
d. Email: [e-mail]
6, Actual Cost of (Construction❑, Modification0, or RemovalQ) of dam': $ 139,790.26
7. Additional Application Processing Fee Enclosed: $ 2,381 M
In accordance with § 143-215,28A. and 15A NCAC 02K ,0222, I, David Emonson , agree that the
above information is true and correct to the best of my knowledge and belief and was provided by me under oath,
Type and Print Name: ❑ Ay t❑ �M ►J rJ
Signature:av_111(
Title of Authoritv: 00 9 4 to S f it A t- A--.� ►k A A-4 £ Cl
Date: 6a. 14p. Z0 2 �-
1: Attach contractual documentation for project which includes lump sutra bid price or unit bid quantities with prices: all
change order items costs, etc. An approval will not be issued if documentation for the actual cost of
construction/enlargement/removal and the additional application processing fee are not pro-7ded.

Page 2 of 2
1, A l I Y y E M �'/ A b 1 / & h '� a Notary- Public of the County of VVg- t -- in
the State of North Carolina, hereby certify that T-)A V ( d P tl-•. U k t 5 0 /,:!-- appeared personally
before me this day and being duly sworn acknowledge that the above form was executed by him/her.
Witness my hand and notarial seal, this /4
Seal:
_ day of L# 24
Notary: 27r
My Commission Expires: 2 7 2 e)2
May E. Mulholland
NotaryPublic
Wake County, NC
,Y Commission Expires September 27, 204
Statc cfNcrth Carolina I Environmental Quality I Energy, MinemI and Land Resourcex
1612 hbil Servioe Center ' 512 N. Salisbury St. I Raleigh NC 27699
919 707 9220 T

i
L... •
CONTRACTORS LICENSE NO.25994
1388 RAINS CROSSROAD ROAD
PRINCETON, NC 27569
919-201-3172
CONTACT: ADAM STUCKEY
To: GRIFOLS THERAPEUTICS, LLC
BID NO: RDB 202280
BID DATE: June 23, 2022
INVOICE NO: 202280
INVOICE DATE: AUGUST 29, 2022
RE: 2022 POND AND DAM GRIFOLS CAT
PO # 4501740719
ITEM #
. DESCRIPTION
UNIT PRICE
AMOUNT
1
MOBILIZATION LS
$
10,000.00
$
10,000.00
2
CONTROL OF WATER/DEWATERING 60 DAYS LS
$
12 500.00
$
12,500.00
3
SILT FENCE 450 LF
$
4.00
$
1,800.00
4
CLEARING AND GRUBBING 0.7 AC
$
8,500.00
$
5,500.00
5
TREE REMOVAL LS
$
15,000.00
$
15,000.00
6
PIPE REMOVAL 102 LF LS
$
2,500.00
$
2,500.00
7
EXCAVATION & GRADING (2,300 CY
$
10.00
$
23,000.00
8
CLASS 11 RIPRAP 510 TONS
$
64.00
$
32,640.00
9
#57 STONE 201 TONS
$
45.00
$
9,045.00
10
MIRAFI 18ON FILTER FABRIC (1,047 SY
$
5.58
$
5,842.26
11
SURFACES RESTORATION/ STABILIZATION LS
$
6,575.00
$
6,575.00
ADDITIONAL WORK CHARGES
12
DEMOLITION OF EXISTING RETAINING WALL UNDER
$ 8,500.00
$ 8,500.00
EXISTING DAM
13
CLASS 11 RIPRAP ADDITIONAL 92 TONS HAULED
$ 64.00
$ 5,888.00
TOTAL BILL: $138 790.26
GRIFOLS HALF $ 69 395.13
CATERPILLAR HALF $69 395.13
If you have any questions concerning this invoice call: Adam Stuckey @ 919-201-3172 TOTAL: $ 69,395.13
THANK YOU FOR YOUR BUSINESS!

ATTCHMENT C-
JOHNS-035 SEDIMENT TESTING RESULTS

ENVIRONMENT
& HEALTH
Mr. Dori Sabeh, PE, GISP
Project Manager
McGill Associates, P.A.
5400 Trinity Road, Suite 107
Raleigh, NC 27607
Summary of Sediment Sampling, Former Finch Pond, Clayton, North
Carolina
McGill Associates, P.A. (McGill) is providing engineering services to Caterpillar
Incorporated (Caterpillar) and Grifols Therapeutics (Grifols) for removal of an earthen
dam that impounds Finch Pond and straddles their two properties in Clayton. In
support of this removal, McGill requested that Ramboll sample the sediment in Finch
Pond, in order to evaluate if these sediments had been impacted by the adjoining
Peele Pesticide Disposal Site (Peele Site). This letter documents the results of this
sampling.
Background
The Peele Site was located on a property that is currently owned by the Clayton Fire
Department (Figure 1) and is listed on the North Carolina Inactive Hazardous Waste
Inventory (NCD986171338). The Peele Site had a burn pit and disposal trench that
was remediated in 1998. McGill, and their clients Caterpillar and Grifols, were
concerned that the Finch Pond, which is located downgradient of the former disposal
trench, could have been impacted by historical operations at the Peele Site.
Soil at the Peele Site contained concentrations of pesticides and metals at
concentrations above the North Carolina Preliminary Soil Remediation Goals (PSRGs),
specifically:
• Arsenic
• Copper
• 4,4-Dichlorodiphenyltrichloroethane (DDT)
• 4,4-Dichlorodiphenyldichloroethylene (DDE
• 4,4-Dichlorodiphenyldichloroethane (DDD)
• Dieldrin
• Endosulfan
• Endosulfan Sulfate
• Endrin
• Endrin Aldehyde
• Heptachlor
• Heptachlor Epoxide
• Methoxychlor
• Total Chlordane
• Toxaphene
August 4, 2022
Ramboll
3214 Charles B. Root Wynd
Suite 130
Raleigh, NC 27612
USA
T 919-987-3090
F 919-781-4360
https://ramboll.com
1/3

In accordance with the proposal to McGill dated February 11, 2022, Ramboll sampled the Finch Pond
sediment, as well as two background locations, and characterized the potential impact from the
constituents identified above. The sections that follow summarize the work performed, the results of the
investigation, and Ramboll's conclusions.
Work Performed
On May 19, 2022, Ramboll mobilized to the Finch Pond, with the intent of collecting sediment samples
from a canoe. Ramboll's objective was to collect discrete samples from across the complete depth of
sediment, in order to characterize conditions over the broad sequence of deposition. Ramboll was able
to access the proposed sample locations but was unable to obtain representative sediment samples
from the pond because of the depth of the water, and the thickness and consistency of the pond
sediment. Ramboll was able to collect representative sediment samples from the two background
locations (Figure 1) during this mobilization. During this initial site visit, McGill identified leakage of
water from the base of the dam in excess of 20 gallons per minute, which represented a high level of
risk for the integrity of the dam creating the Finch Pond. Based on this discovery, Caterpillar and Grifols
drained the pond to relieve pressure on the dam.
Ramboll returned to the Finch Pond to complete the sampling on June 10, 2022, following several weeks
of drying, and was able to access four locations for sediment sampling (Figure 2). Using a hand auger,
Ramboll was able to penetrate through the sediment and into the underlying native soil at two locations
(P-3 and P-4) and was refused on the basal gravel from the former stream underlying the pond at the
other two locations (P-1 and P-2). Ramboll collected sediment samples from two depths at locations P-1
and P-2, and one depth at locations P-3 and P-4 (Attachment 1).
Sediment samples were sent to Eurofins TestAmerica Laboratory in Pittsburgh for analysis of the
constituents listed above. Ramboll also collected a duplicate sample from location P-3, and a matrix
spike/matrix spike duplicate pair from location P-2.
Investigation Results
The laboratory analytical results for the samples collected indicated the presences of arsenic and copper
in all of the samples collected, as well as a number of the targeted pesticides (Table 1, Attachment 2).
As required by the North Carolina Department of Environmental Quality (NCDEQ), Inactive Hazardous
Sites Branch (IHSB) the analytical results for these samples were compared to the PSRGs for soil
(NCDEQ, January 2022), as well as the screening values for freshwater sediment in the USEPA Region 4
Ecological Risk Assessment Supplemental Guidance (March, 2018). Except for the following,
concentrations were below the PSRGs and the ecological screening value (ESV):
• Arsenic was detected at a concentration above the PSRG for residential, but not industrial site
use, in all but one sample collected.
The pesticides 4,4-DDD and 4,4-DDE were detected at concentrations above the ESV in the
sample from 1-2 feet below surface (fbs) at location P-1. The concentration of total
DDT/DDE/DDD also exceeded the ESV in this sample. The pesticide 4,4-DDE was also detected
at a concentration above the ESV at background location BG-2.
2/3

Conclusions
The following conclusions were made with regard to the analytical results:
Arsenic was detected at a relatively -consistent concentration in all of the samples analyzed. This
metal is naturally -occurring in soil, and is often found at concentrations in excess of the PSRG.
Based on its natural occurrence in soil, and the relatively consistent concentration from
background locations as well as the Finch Pond sediment, the results appear to represent
naturally -elevated concentrations, and not impact from the Peele Site.
The pesticides 4,4-DDT/DDE/DDD were found at relatively similar concentrations in both Sample
1-2 fbs from pond sample P-1, as well as background location BG-2. The pesticide 4,4-DDT was
in widespread use in North Carolina historically and was often applied through aerial spraying.
Based on the detection of 4,4-DDT, and its degradation compounds 4,4-DDE and 4,4-DDD at
relatively consistent concentrations in a background as well as one of the pond samples, the
results appear to represent widespread aerial spraying of this pesticide, and not impact from the
Peele Site.
Consistent with the requirements of the IHSB for samples that exceed screening values, Ramboll
submitted these results to the NCDEQ project manager for the Peele Site, Bruce Lefler. Mr. Lefler
reviewed these results with his supervisor and concurred with Ramboll's evaluation that they were not
indicative of impact, and that no notification to NCDEQ was required (email dated July 14, 2022,
Attachment 3). With this consideration, no further action is required, and the sediment from the pond
does not require special handling or disposal.
We appreciate the opportunity to support you on this project. Please let me know if you have any
questions or require any additional information.
SincerelyAda
Michael Hall, PG
SENIOR MANAGING SCIENTIST
081-E&H SE RESOURCES
D 919-987-3060
M 919-306-1160
michael.hallCa)ramboll.com
Attachments
Table 1 - Summary of Analytical Results for Sediment
Figure 1 - Site Location and Background Samples
Figure 2 - Pond Sample Locations
Attachment 1 - Sediment Boring Logs
Attachment 2 - Laboratory Analytical Reports
Attachment 3 - Email Correspondence from NCDEQ
3/3

ENVIRONMENT
& HEALTH
TABLES

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ATTACHMENT 1
SEDIMENT BORING LOGS

BOREHOLE AND WELL COMPLETION LOG
BORING NO. P-1
PROJECT: Finch Pond Sediment Sampling
SHEET 1 OF 1
CLIENT: McGill Associates
INSPECTOR: Michael Hall
JOB NO. 194102382
DRILLING CONTRACTOR: Ramboll
GROUND ELEV. 0
DRILLER: Michael Hall
DATUM Top sediment
PURPOSE: Sediment Sample SAMPLE CORE CASING
DATE STARTED 6/10/2022
DRILLING RIG TYPE: Hand Auger TYPE AU --- ___
DRILLING METHOD: Hand Auger DIA. 3" --- ---
DATE FINISHED 6/10/2022
a
v s
MATERIAL DESCRIPTION
Q
REMARKS
U) T
Dcn
N
01
m
a
(6
cnz
Dark greenish gray (Gley 1 3/10Y) SILTY FINE SAND, moist to
wet, very soft, lensed with organic material and sand.
P-1-061022-1-2
Sample 1-2 fbs.
2
SM
0
P-1-061022-2.5
Sample 2.5-3.5 fbs.
-3.5
4
_4.0 Refusal on gravel. 4.0
End of Borehole at 4.0 fbs.
Notes:

BOREHOLE AND WELL COMPLETION LOG
BORING NO. P-2
PROJECT: Finch Pond Sediment Sampling
SHEET 1 OF 1
CLIENT: McGill Associates
INSPECTOR: Michael Hall
JOB NO. 194102382
DRILLING CONTRACTOR: Ramboll
GROUND ELEV. 0
DRILLER: Michael Hall
DATUM Top sediment
PURPOSE: Sediment Sample SAMPLE CORE CASING
DATE STARTED 6/10/2022
DRILLING RIG TYPE: Hand Auger TYPE AU --- ___
DRILLING METHOD: Hand Auger DIA. 3" --- ---
DATE FINISHED 6/10/2022
a
v s
MATERIAL DESCRIPTION
Q
REMARKS
U) T
Dcn
N
01
m
a
(6
cnz
Dark greenish gray (Gley 1 3/10Y) SILTY FINE SAND, moist to
wet, very soft, lensed with organic material and sand.
SM
0
P-2-061022-1-2
Sample 1-2 fbs.
2
P-2-061022-2-3
Sample 2-3 fbs.
_3.0 Refusal on gravel 3.0
End of Borehole at 3.0 fbs.
4
Notes:

BOREHOLE AND WELL COMPLETION LOG
BORING NO. P-3
PROJECT: Finch Pond Sediment Sampling
SHEET 1 OF 1
CLIENT: McGill Associates
INSPECTOR: Michael Hall
JOB NO. 194102382
DRILLING CONTRACTOR: Ramboll
GROUND ELEV. 0
DRILLER: Michael Hall
DATUM Top sediment
PURPOSE: Sediment Sample SAMPLE CORE CASING
DATE STARTED 6/10/2022
DRILLING RIG TYPE: Hand Auger TYPE AU --- ___
DRILLING METHOD: Hand Auger DIA. 3" --- ---
DATE FINISHED 6/10/2022
a
v s
MATERIAL DESCRIPTION
Q
REMARKS
U) T
Dcn
N
01
m
a
(6
cnz
Dark greenish gray (Gley 1 3/10Y) SILTY FINE SAND, moist to
wet, very soft, lensed with organic material and sand.
SM
0
P-3-061022-1-2
Sample 1-2 fbs.
2
-2.0 2.0
Native saprolite soil at 2 fbs.
Mottled greenish gray (Gley 2 6/10G) to brown (7.5YR 4/4) FAT
CLAY, moist, firm, non-dilatant, medium toughness,
medium -high plasticity, very high dry strength.
CH
3.0 3.0
End of Borehole at 3.0 fbs.
4
Notes:

BOREHOLE AND WELL COMPLETION LOG
BORING NO. P-4
PROJECT: Finch Pond Sediment Sampling
SHEET 1 OF 1
CLIENT: McGill Associates
INSPECTOR: Brandon Governo
JOB NO. 194102382
DRILLING CONTRACTOR: Ramboll
GROUND ELEV. 0
DRILLER: Brandon Governo
DATUM Top sediment
PURPOSE: Sediment Sample SAMPLE CORE CASING
DATE STARTED 6/10/2022
DRILLING RIG TYPE: Hand Auger TYPE AU --- ___
DRILLING METHOD: Hand Auger DIA. 3" --- ---
DATE FINISHED 6/10/2022
a
v s
MATERIAL DESCRIPTION
Q
REMARKS
U) T
Dcn
N
01
m
a
(6
cnz
Dark greenish gray (Gley 1 3/10Y) SILTY FINE SAND, moist to
wet, very soft, lensed with organic material and sand.
Sm
P-4-061022-0-1
Sample 0-1 fbs.
-1.0 1.0
Native saprolite soil at 1 fbs.
Mottled greenish gray (Gley 2 6/10G) to brown (7.5YR 4/4) FAT
CLAY, moist, firm, non-dilatant, medium toughness,
medium -high plasticity, very high dry strength.
2
0
CH
4
-5.0 5.0
End of Borehole at 5.0 fbs.
Notes:

ATTACHMENT 2
LABORATORY ANALYTICAL REPORTS

urofins
Environment Testing
America
ANALYTICAL REPORT
Eurofins Pittsburgh
301 Alpha Drive
RIDC Park
Pittsburgh, PA 15238
Tel: [phone]
Laboratory Job ID: 180-138477-1
Client Project/Site: Pond Sampling and Evaluatioon
For:
Ramboll US Corporation
3214 Charles B. Root Wynd
Suite 130
Raleigh, North Carolina 27612
Attn: Nicholas Panzera
u
Authorized for release by:
611012022 1:56:28 PM
Samantha Bayura, Project Manager 1
[phone]
[e-mail]
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
\�171�7NY��I�L�i[y

Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Laboratory Job ID: 180-138477-1
Table of Contents
Cover Page ..............................................
1
Table of Contents .........................................
2
Case Narrative ...........................................
3
Definitions/Glossary.......................................
4
Certification Summary ......................................
5
Sample Summary .........................................
6
Method Summary .........................................
7
Lab Chronicle ............................................
8
Client Sample Results ......................................
9
QC Sample Results ........................................
11
QC Association Summary ...................................
15
Chain of Custody ..........................................
16
Receipt Checklists .........................................
18
Eurofins Pittsburgh
Page 2 of 18 6/10/2022

Case Narrative
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-138477-1
Laboratory: Eurofins Pittsburgh
Narrative
CASE NARRATIVE
Client: Ramboll US Corporation
Project: Pond Sampling and Evaluatioon
Report Number: 180-138477-1
Job ID: 180-138477-1
With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no
problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control
limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of
the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples,
the reporting limits are adjusted relative to the dilution required.
Calculations are performed before rounding to avoid round -off errors in calculated results.
All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the
individual sections below.
RECEIPT
The samples were received on 5/21/2022 10:00 AM. Unless otherwise noted below, the samples arrived in good condition, and where
required, properly preserved and on ice. The temperature of the cooler at receipt was 3.80 C.
PESTICIDES
The following samples were diluted due to the nature of the sample matrix: BG-1 (180-138477-1) and BG-2 (180-138477-2). Elevated
reporting limits (RLs) are provided.
Surrogate recovery for the following samples were outside control limits: BG-1 (180-138477-1), (180-138477-B-1-A MS) and
(180-138477-B-1-B MSD). Evidence of matrix interferences is not obvious.
The DCB Decachlorobiphenyl (Surrogate) surrogate recovery for the following samples was outside acceptance limits (high biased) on
the primary column due to matrix interference: (LCS 180-399849/2-A). The recovery is within acceptance limits on the other column,
indicating that the extraction process was in control.
The matrix spike / matrix spike duplicate (MS/MSD) recoveries for preparation batch 180-399849 and analytical batch 180-400163 were
outside control limits. Sample matrix interference and/or non -homogeneity are suspected because the associated laboratory control
sample (LCS) recovery was within acceptance limits.
The matrix spike / matrix spike duplicate (MS/MSD) precision for preparation batch 180-399849 and analytical batch 180-400163 was
outside control limits. Sample matrix interference and/or non -homogeneity are suspected because the associated laboratory control
sample(LCS) precision was within acceptance limits
METALS
No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
GENERAL CHEMISTRY
No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Eurofins Pittsburgh
Page 3 of 18 6/10/2022

Definitions/Glossary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Qualifiers
.r141&-r
Qualifier Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.
F2 MS/MSD RPD exceeds control limits
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
p The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported.
S1- Surrogate recovery exceeds control limits, low biased.
S1+ Surrogate recovery exceeds control limits, high biased.
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
a Listed under the "D" column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level'
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRIES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Job ID: 180-138477-1
C
Eurofins Pittsburgh
Page 4 of 18 6/10/2022

Accreditation/Certification Summary
Client: Ramboll US Corporation Job ID: 180-138477-1
Project/Site: Pond Sampling and Evaluatioon
Laboratory: Eurofins Pittsburgh
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (VWV/SV) State 434 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
254OG Sediment Percent Moisture
2540G Sediment Percent Solids
EPA 8081 B LL 3541 Sediment Endosulfan, Total
Eurofins Pittsburgh
Page 5 of 18 6/10/2022

Sample Summary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Lab Sample ID Client Sample ID
180-138477-1 BG-1
i E:i�1 si BI:L ! IrB� :ieb:
Job ID: 180-138477-1
Matrix Collected Received
Sediment 05/19/2214:10 05/21/2210:00
Sediment 05/19/2214:20 05/21/2210:00
Page 6 of 18 Eurofins PP OY-902

Method Summary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-138477-1
Method
Method Description
Protocol
Laboratory
EPA 8081 B ILL
Organochlorine Pesticides (GC)
SW846
TAL PIT
EPA 6020B
Metals (ICP/MS)
SW846
TAL PIT
2540G
SM 2540G
SM22
TAL PIT
3050B
Preparation, Metals
SW846
TAL PIT
3541
Automated Soxhlet Extraction (Low Level)
SW846
TAL PIT
Protocol References:
SM22 = Standard Methods For The Examination Of Water And Wastewater, 22nd Edition
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL [phone]
Eurofins Pittsburgh
Page 7 of 18 6/10/2022

Lab Chronicle
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-138477-1
Client Sample ID: BG-1 Lab Sample ID: 180-138477-1
Date Collected: 05/19/22 14:10 Matrix: Sediment
Date Received: 05/21/22 10:00
Batch Batch
Prep Type Type Method
Total/NA Analysis 254OG
Instrument ID: NOEQUIP
Client Sample ID: BG-1
Date Collected: 05/19/22 14:10
Date Received: 05/21/22 10:00
Dil Initial Final Batch Prepared
Run Factor Amount Amount Number or Analyzed Analyst Lab
1 399789 05/24/22 11:54 CMR TAL PIT
Lab Sample ID: 180-138477-1
Matrix: Sediment
Percent Solids: 81.6 A
V
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor
Amount
Amount
Number
or Analyzed
Analyst Lab
Total/NA Prep 3541
30.4 g
1.0 mL
399849
05/ 55/22 08:00
RGT TAL PIT
Total/NA Analysis EPA 8081 B ILL
5
400163
05/27/22 16:31
APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.05 g
100 mL
400058
05/26/22 12:21
KWP TAL PIT
Total/NA Analysis EPA6020B
1
401263
06/04/22 19:01
RJR TAL PIT
Instrument ID: DORY
Client Sample ID: 13G-2
Lab Sample ID: 180-138477-2
Date Collected: 05/19/22 14:20
Matrix: Sediment
Date Received: 05/21/22 10:00
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor
Amount
Amount
Number
or Analyzed
Analyst Lab
Total/NA Analysis 254OG
1
399789
05/24/22 11:54
CMR TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: 13G-2
Lab Sample ID: 180-138477-2
Date Collected: 05/19/22 14:20
Matrix: Sediment
Date Received: 05/21/22 10:00
Percent Solids: 72.8
Batch Batch
Dil
Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor
Amount
Amount
Number
or Analyzed
Analyst Lab
Total/NA Prep 3541
30.3 g
1.0 mL
399849
05/25/22 08:00
RGT TAL PIT
Total/NA Analysis EPA 8081 B LL
5
400163
05/27/22 16:47
APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.05 g
100 mL
400058
05/26/22 12:21
KWP TAL PIT
Total/NA Analysis EPA6020B
1
401263
06/04/22 19:18
RJR TAL PIT
Instrument ID: DORY
Laboratory References:
TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL [phone]
Analyst References:
Lab: TAL PIT
Batch Type: Prep
KWP = Kenneth Peters
RGT = Rhianna Thomas
Batch Type: Analysis
APD = Aaron DeLeo
CMR = Carl Reagle
RJR = Ron Rosenbaum
Eurofins Pittsburgh
Page 8 of 18 6/10/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-138477-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: BG-1
Lab Sample
ID: 180-138477-1
Date Collected: 05/19/22 14:10
Matrix: Sediment
Date Received: 05/21/22 10:00
Percent Solids:
81.6
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.25
0.078
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
alpha-BHC
ND
0.25
0.062
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
beta-BHC
ND F2 F1
0.25
0.069
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
delta-BHC
ND
0.25
0.080
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
gamma-BHC (Lindane)
ND
0.25
0.065
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
cis -Chlordane
ND F2
0.25
0.063
ug/Kg
*
05/25/22 08:00
05/27/22 16:31
5
trans -Chlordane
ND F1
0.25
0.059
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Chlordane (technical)
ND
2.5
1.1
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
4,4'-DDD
ND
0.25
0.053
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
4,4'-DDE
0.29
0.25
0.051
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
4,4'-DDT
ND F1
0.25
0.18
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Dieldrin
ND F2 F1
0.25
0.063
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endosulfan I
ND F2
0.25
0.068
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endosulfan 11
ND
0.25
0.056
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endosulfan sulfate
ND F1
0.25
0.12
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endrin
ND F2
0.25
0.047
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endrin aldehyde
ND F1
0.25
0.090
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Endrin ketone
ND F1
0.25
0.035
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Heptachlor
ND
0.25
0.079
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Heptachlor epoxide
ND
0.25
0.064
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Methoxychlor
ND
0.25
0.098
ug/Kg
#
05/25/22 08:00
05/27/22 16:31
5
Toxaphene
ND
10
6.8
ug/Kg
#
05/25/22 08:00
05/27/22 16:31
5
Endosulfan, Total
ND
0.50
0.12
ug/Kg
05/25/22 08:00
05/27/22 16:31
5
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
21 p
10 -105
05125122 08:00
05127122 16:31
5
Tetrachloro-m-xylene
32
10 -105
05125122 08:00
05127122 16:31
5
DCB Decachlorobiphenyl (Surr)
0 S1-
25-107
05125122 08:00
05127122 16:31
5
DCB Decachlorobiphenyl (Surr)
0 S1-
25-107
05125122 08:00
05127122 16:31
5
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
1.9
0.060
0.035
mg/Kg
*
05/26/2212:21
06/04/2219:01
1
Copper
3.4
0.18
0.12
mg/Kg
05/26/2212:21
06/04/2219:01
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
18.4
0.1
0.1
%
05/24/22 11:54
1
Percent Solids
81.6
0.1
0.1
%
05/24/22 11:54
1
Client Sample ID: BG-2
Lab Sample
ID: 180-138477-2
Date Collected: 05/19/22 14:20
Matrix: Sediment
Date Received: 05/21/22 10:00
Percent Solids:
72.8
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.28
0.088
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
alpha-BHC
ND
0.28
0.070
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
beta-BHC
ND
0.28
0.078
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
delta-BHC
ND
0.28
0.090
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
gamma-BHC (Lindane)
ND
0.28
0.073
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Eurofins Pittsburgh
Page 9 of 18 6/10/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-138477-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: BG-2
Lab Sample
ID: 180-138477-2
Date Collected: 05/19/22 14:20
Matrix: Sediment
Date Received: 05/21/22 10:00
Percent Solids:
72.8
Method: EPA 8081 B LL - Organochlorine
Pesticides (GC) (Continued)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
cis -Chlordane
ND
0.28
0.071
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
trans -Chlordane
ND
0.28
0.066
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
Chlordane (technical)
ND
2.8
1.2
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
4,4'-DDD
0.19 J p
0.28
0.060
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
4,4'-DDE
1.7
0.28
0.058
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
4,4'-DDT
0.96
0.28
0.20
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
Dieldrin
ND
0.28
0.071
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
Endosulfan I
ND
0.28
0.077
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
Endosulfan 11
ND
0.28
0.063
ug/Kg
*
05/25/22 08:00
05/27/22 16:47
5
Endosulfan sulfate
ND
0.28
0.13
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Endrin
ND
0.28
0.053
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Endrin aldehyde
ND
0.28
0.10
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Endrin ketone
ND
0.28
0.039
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Heptachlor
ND
0.28
0.089
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Heptachlor epoxide
ND
0.28
0.072
ug/Kg
#
05/25/22 08:00
05/27/22 16:47
5
Methoxychlor
ND
0.28
0.11
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Toxaphene
ND
11
7.7
ug/Kg
05/25/22 08:00
05/27/22 16:47
5
Endosulfan, Total
ND
0.57
0.14
ug/Kg
#
05/25/22 08:00
05/27/22 16:47
5
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
DY Fac
Tetrachloro-m-xylene
24
10 -105
05125122 08:00
05127122 16:47
5
Tetrachloro-m-xylene
25
10 -105
05125122 08:00
05/27/22 16:47
5
DCB Decachlorobiphenyl (Surr)
58
25 -107
05125122 08:00
05127122 16:47
5
LDCB Decachlorobiphenyl (Surr)
52
25 -107
05125122 08:00
05127122 16:47
5
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Arsenic
1.4
0.067
0.039
mg/Kg
* 05/26/2212:21
06/04/2219:18
1
Copper
1.1
0.20
0.14
mg/Kg
* 05/26/2212:21
06/04/2219:18
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D Prepared
Analyzed
Dil Fac
Percent Moisture
27.2
0.1
0.1
%
05/24/22 11:54
1
Percent Solids
72.8
0.1
0.1
%
05/24/22 11:54
1
Eurofins Pittsburgh
Page 10 of 18 6/10/2022

QC Sample Results
Client: Ramboll US Corporation
Job ID: 180-138477-1
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Lab Sample ID: MB 180-399849/1-A
Client Sample ID: Method
Blank
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 400163
Prep Batch: 399849
MB MB
Analyte
Result Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Aldrin
ND
0.042
0.013
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
alpha-BHC
ND
0.042
0.010
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
beta-BHC
ND
0.042
0.011
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
delta-BHC
ND
0.042
0.013
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
gamma-BHC (Lindane)
ND
0.042
0.011
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
cis -Chlordane
ND
0.042
0.010
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
trans -Chlordane
ND
0.042
0.0097
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Chlordane (technical)
ND
0.42
0.18
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
4,4'-DDD
ND
0.042
0.0088
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
4,4'-DDE
ND
0.042
0.0085
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
4,4'-DDT
ND
0.042
0.030
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Dieldrin
ND
0.042
0.010
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endosulfan I
ND
0.042
0.011
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endosulfan 11
ND
0.042
0.0092
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endosulfan sulfate
ND
0.042
0.019
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endrin
ND
0.042
0.0078
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endrin aldehyde
ND
0.042
0.015
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endrin ketone
ND
0.042
0.0058
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Heptachlor
ND
0.042
0.013
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Heptachlor epoxide
ND
0.042
0.011
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Methoxychlor
ND
0.042
0.016
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Toxaphene
ND
1.7
1.1
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
Endosulfan, Total
ND
0.083
0.021
ug/Kg
05/25/22 08:00
05/27/22 14:25
1
MB MB
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
DY Fac
Tetrachloro-m-xylene
50
10 -105
05125122 08:00
05127122 14:25
1
Tetrachloro-m-xylene
64
10 -105
05125122 08:00
05/27/22 14:25
1
DCB Decachlorobiphenyl (Surr)
73
25 -107
05/25/22 08:00
05/27/22 14:25
1
DCB Decachlorobiphenyl (Surr)
82
25 -107
05125122 08:00
05/27/22 14:25
1
Lab Sample ID: LCS 180-399849/2-A
Matrix: Sediment
Analysis Batch: 400163
Analyte
Spike
Added
LCS LCS
Result Qualifier
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 399849
%Rec
Unit D %Rec Limits
Aldrin
0.833
0.735
ug/Kg
88
25 - 139
alpha-BHC
0.833
0.783
ug/Kg
94
30-131
beta-BHC
0.833
0.726
ug/Kg
87
26 - 128
delta-BHC
0.833
0.767
ug/Kg
92
20-133
gamma-BHC (Lindane)
0.833
0.765
ug/Kg
92
31 - 134
cis -Chlordane
0.833
0.712
ug/Kg
85
25-137
trans -Chlordane
0.833
0.701
ug/Kg
84
31 - 131
4,4'-DDD
0.833
0.808
ug/Kg
97
32 - 135
4,4'-DDE
0.833
0.828
ug/Kg
99
28 - 128
4,4'-DDT
0.833
0.954
ug/Kg
114
28 - 121
Dieldrin
0.833
0.835
ug/Kg
100
39 - 124
Endosulfan 1
0.833
0.715
ug/Kg
86
24 - 141
Endosulfan II
0.833
0.809
ug/Kg
97
38 - 125
in
Eurofins Pittsburgh
Page 11 of 18 6/10/2022

QC Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Lab Sample ID: LCS 180-399849/2-A
Matrix: Sediment
Analysis Batch: 400163
Analyte
Spike
Added
LCS LCS
Result Qualifier
Endosulfan sulfate
0.833
0.841
Endrin
0.833
0.859
Endrin aldehyde
0.833
0.728
Endrin ketone
0.833
0.819
Heptachlor
0.833
0.787
Heptachlor epoxide
0.833
0.710
Methoxychlor
0.833
0.943
LCS LCS
Surrogate %Recovery Qualifier Limits
Tetrachloro-m-xylene 64 10 - 105
Tetrachloro-m-xylene 84 10 - 105
DCB Decachlorobiphenyl (Surr) 89 25- 107
DCB Decachlorobiphenyl (Surr) 110 S1+ 25 - 107
Lab Sample ID: 180-138477-1 MS
Matrix: Sediment
Analysis Batch: 400163
Job ID: 180-138477-1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 399849
% Rec
Unit
D %Rec
Limits
ug/Kg
101
23-130
ug/Kg
103
32 - 131
ug/Kg
87
27-124
ug/Kg
98
46-128
ug/Kg
94
24-146
ug/Kg
85
25-142
ug/Kg
113
31 - 136
Analyte
Sample Sample
Result Qualifier
Spike
Added
MS MS
Result Qualifier
Unit D
Aldrin
ND
2.00
0.687
ug/Kg #
alpha-BHC
ND
2.00
0.770
ug/Kg #
beta-BHC
ND
2.00
0.592
ug/Kg #
delta-BHC
ND
2.00
0.717
ug/Kg #
gamma-BHC (Lindane)
ND
2.00
0.784
ug/Kg #
cis -Chlordane
ND
F2
2.00
0.929
ug/Kg #
trans -Chlordane
ND
2.00
0.756
ug/Kg #
4,4'-DDD
ND
2.00
0.903
ug/Kg #
4,4'-DDE
0.26
F2
2.00
1.75
ug/Kg #
4,4'-DDT
ND
F1
2.00
ND
F1
ug/Kg #
Dieldrin
ND
F2 F1
2.00
0.797
p
ug/Kg #
Endosulfan I
ND
F2
2.00
0.902
p
ug/Kg #
Endosulfan 11
ND
F1
2.00
0.929
ug/Kg #
Endosulfan sulfate
ND
F1
2.00
ND
F1
ug/Kg #
Endrin
ND
2.00
1.40
ug/Kg #
Endrin aldehyde
ND
F1
2.00
0.505
F1 p
ug/Kg #
Endrin ketone
ND
F1
2.00
0.735
F1
ug/Kg #
Heptachlor
ND
2.00
0.871
ug/Kg #
Heptachlor epoxide
ND
2.00
0.742
ug/Kg #
Methoxychlor
ND
2.00
0.755
p
ug/Kg #
MS MS
Surrogate %Recovery Qualifier Limits
Tetrachloro-m-xylene 24 10 - 105
Tetrachloro-m-xylene 35 10 - 105
DCB Decachlorobiphenyl (Surr) 0 S1- 25- 107
DCB Decachlorobiphenyl (Surr) 0 S1- 25- 107
in
Client Sample ID: BG-1
Prep Type: Total/NA
Prep Batch: 399849
% Rec
%Rec
Limits
34
25-139
38
30-131
30
26-128
36
20-133
39
31-134
46
25-137
38
31 - 131
45
32-135
74
28-128
0
28-121
40
39-124
45
24-141
46
38-125
0
23-130
70
32 - 131
25
27-124
37
46-128
43
24-146
37
25-142
38
31-136
Eurofins Pittsburgh
Page 12 of 18 6/10/2022

QC Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-138477-1
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Lab Sample ID: 180-138477-1 MSD
Client Sample ID:
BG-1
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 400163
Prep Batch: 399849
Sample
Sample
Spike
MSD
MSD
%Rec
RPD
Analyte
Result
Qualifier
Added
Result
Qualifier
Unit
D
%Rec
Limits
RPD
Limit
Aldrin
ND
2.04
0.605
ug/Kg
#
30
25-139
13
40
alpha-BHC
ND
2.04
0.699
ug/Kg
#
34
30-131
10
40
beta-BHC
ND
F2 F1
2.04
0.444
J p F2 F1
ug/Kg
#
22
26 - 128
61
40
delta-BHC
ND
2.04
0.604
ug/Kg
#
30
20-133
18
40
gamma-BHC (Lindane)
ND
2.04
0.695
ug/Kg
#
34
31 - 134
12
40
cis -Chlordane
ND
F2
2.04
0.626
F2
ug/Kg
#
31
25-137
59
40
trans -Chlordane
ND
2.04
0.571
F1
ug/Kg
#
28
31 - 131
28
40
4,4'-DDD
ND
2.04
0.763
ug/Kg
#
37
32 - 135
17
40
4,4'-DDE
0.29
2.04
1.01
ug/Kg
#
35
28 - 128
10
40
4,4'-DDT
ND
F1
2.04
ND
F1
ug/Kg
#
0
28-121
NC
40
Dieldrin
ND
2.04
0.626
F2 F1
ug/Kg
#
31
39-124
91
40
Endosulfan I
ND
2.04
0.538
F2
ug/Kg
#
26
24-141
92
40
Endosulfan 11
ND
2.04
0.791
ug/Kg
#
39
38-125
16
40
Endosulfan sulfate
ND
F1
2.04
ND
F1
ug/Kg
#
0
23- 130
NC
40
Endrin
ND
2.04
0.818
F2
ug/Kg
#
40
32 - 131
53
40
Endrin aldehyde
ND
F1
2.04
0.412
J p F1
ug/Kg
#
20
27- 124
20
40
Endrin ketone
ND
F1
2.04
0.711
F1
ug/Kg
#
35
46- 128
6
40
Heptachlor
ND
2.04
0.734
ug/Kg
#
36
24-146
17
40
Heptachlor epoxide
ND
2.04
0.653
ug/Kg
#
32
25 - 142
13
40
Methoxychlor
ND
2.04
0.642
p
ug/Kg
#
31
31 - 136
16
40
MSD
MSD
Surrogate
%Recovery
Qualifier
Limits
Tetrachloro-m-xylene
23
10 - 105
Tetrachloro-m-xylene
33
10 - 105
DCB Decachlorobiphenyl (Surr)
0
S1-
25- 107
DCB Decachlorobiphenyl (Surr)
0
S1-
25 - 107
Method: EPA 6020B - Metals (ICP/MS)
Lab Sample ID: MB 180-400058/1-A
Matrix: Sediment
Analysis Batch: 401263
Analyte
Arsenic
Copper
MB MB
Result Qualifier RL MDL Unit
ND 0.10 0.058 mg/Kg
ND 0.30 0.21 mg/Kg
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 400058
D Prepared Analyzed Dil Fac
05/26/22 11:31 06/04/22 18:36 1
05/26/22 11:31 06/04/22 18:36 1
Lab Sample ID: LCS 180-400058/2-A
Client Sample ID: Lab Control Sample
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 401263
Prep Batch: 400058
Spike
LCS LCS
%Rec
Analyte
Added
Result Qualifier
Unit D %Rec Limits
Arsenic
100
91.0
mg/Kg 91 80 - 120
Copper
50.0
47.0
mg/Kg 94 80 - 120
in
Eurofins Pittsburgh
Page 13 of 18 6/10/2022

QC Sample Results
Client: Ramboll US Corporation
Job I D: 180-138477-1
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: 180-138477-1 MS
Client Sample ID: BG-1
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 401263
Prep Batch: 400058
Sample Sample
Spike
MS
MS
%Rec
Analyte Result Qualifier
Added
Result
Qualifier
Unit
D %Rec Limits
Arsenic 1.9
59.8
49.4
mg/Kg
79 75 - 125
Copper 3.4
29.9
28.1
mg/Kg
83 75 - 125
Lab Sample ID: 180-138477-1 MSD
Client Sample ID: BG-1
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 401263
Prep Batch: 400058
Sample Sample
Spike
MSD
MSD
%Rec RPD
Analyte Result Qualifier
Added
Result
Qualifier
Unit
D %Rec Limits RPD Limit
Arsenic 1.9
59.8
48.8
mg/Kg
78 75 - 125 1 20
Copper 3.4
29.9
27.7
mg/Kg
81 75 - 125 1 20
m
Eurofins Pittsburgh
Page 14 of 18 6/10/2022

QC Association Summary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
GC Semi VOA
Prep Batch: 399849
Lab Sample ID
Client Sample ID
180-138477-1
BG-1
180-138477-2
BG-2
MB 180-399849/1-A
Method Blank
LCS 180-399849/2-A
Lab Control Sample
180-138477-1 MS
BG-1
180-138477-1 MSD
BG-1
Analysis Batch: 400163
Lab Sample ID
180-138477-1
180-138477-2
MB 180-399849/1-A
LCS 180-399849/2-A
180-138477-1 MS
180-138477-1 MSD
Metals
Prep Batch: 400058
Lab Sample ID
180-138477-1
180-138477-2
MB 180-400058/1-A
LCS 180-400058/2-A
180-138477-1 MS
180-138477-1 MSD
Analysis Batch: 401263
Lab Sample ID
180-138477-1
180-138477-2
MB 180-400058/1-A
LCS 180-400058/2-A
180-138477-1 MS
180-138477-1 MSD
General Chemistry
Job ID: 180-138477-1
Prep Type
Matrix
Method Prep Batch
Total/NA
Sediment
3541
Total/NA
Sediment
3541
Total/NA
Sediment
3541
Total/NA
Sediment
3541
Total/NA
Sediment
3541
Total/NA
Sediment
3541
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
BG-1
Total/NA
Sediment
EPA 8081 B LL
399849
BG-2
Total/NA
Sediment
EPA 8081 B LL
399849
Method Blank
Total/NA
Sediment
EPA 8081 B LL
399849
Lab Control Sample
Total/NA
Sediment
EPA 8081 B LL
399849
BG-1
Total/NA
Sediment
EPA 8081 B LL
399849
BG-1
Total/NA
Sediment
EPA 8081 B LL
399849
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
BG-1
Total/NA
Sediment
3050B
BG-2
Total/NA
Sediment
3050B
Method Blank
Total/NA
Sediment
3050B
Lab Control Sample
Total/NA
Sediment
3050B
BG-1
Total/NA
Sediment
3050B
BG-1
Total/NA
Sediment
3050B
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
BG-1
Total/NA
Sediment
EPA6020B
400058
BG-2
Total/NA
Sediment
EPA6020B
400058
Method Blank
Total/NA
Sediment
EPA6020B
400058
Lab Control Sample
Total/NA
Sediment
EPA6020B
400058
BG-1
Total/NA
Sediment
EPA6020B
400058
BG-1
Total/NA
Sediment
EPA6020B
400058
Analysis Batch: 399789
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
180-138477-1 BG-1 Total/NA Sediment 254OG
180-138477-2 BG-2 Total/NA Sediment 254OG
Page 15 of 18
Eurofins Pittsburgh
6/10/2022

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Login Sample Receipt Checklist
Client: Ramboll US Corporation
Job Number: 180-138477-1
Login Number: 138477
List Number: 1
Creator: Watson, Debbie
Question
List Source: Eurofins Pittsburgh
Answer Comment
Radioactivity wasn't checked or is </= background as measured by a survey
N/A
meter.
The cooler's custody seal, if present, is intact.
True
Sample custody seals, if present, are intact.
True
The cooler or samples do not appear to have been compromised or
True
tampered with.
Samples were received on ice.
True
Cooler Temperature is acceptable.
True
Cooler Temperature is recorded.
True
COC is present.
True
COC is filled out in ink and legible.
True
COC is filled out with all pertinent information.
True
Is the Field Sampler's name present on COC?
True
There are no discrepancies between the containers received and the COC.
True
Samples are received within Holding Time (excluding tests with immediate
True
HTs)
Sample containers have legible labels.
True
Containers are not broken or leaking.
True
Sample collection date/times are provided.
True
Appropriate sample containers are used.
True
Sample bottles are completely filled.
True
Sample Preservation Verified.
True
There is sufficient vol. for all requested analyses, incl. any requested
True
MS/MSDs
Containers requiring zero headspace have no headspace or bubble is
True
<6mm (1/4").
Multiphasic samples are not present.
True
Samples do not require splitting or compositing.
True
Residual Chlorine Checked.
N/A
Eurofins Pittsburgh
Page 18 of 18 6/10/2022

tiff eu rofi ns
. Environment Testing
America
ANALYTICAL REPORT
Eurofins Pittsburgh
Pp 301 Alpha Drive
RIDC Park
Pittsburgh, PA 15238
Tel: [phone]
Laboratory Job ID: 180-139618-1
Client Project/Site: Pond Sampling and Evaluatioon
For:
Ramboll US Corporation
3214 Charles B. Root Wynd
Suite 130
Raleigh, North Carolina 27612
Attn: Nicholas Panzera
Authorized for release by:
613012022 4:27:30 PM
Carrie Gamber, Senior Project Manager
[phone]
[e-mail]
Designee for
Samantha Bayura, Project Manager 1
[phone]
........ LINKS �........... [e-mail]
Have a Question?
Ask
//' �The
Expert
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Visit us at:
www. eu rofi nsu s. �omlE nv
Results relate only to the items tested and the sample(s) as received by the laboratory.
0\W.1719XIMIDE511.

Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Laboratory Job ID: 180-139618-1
Table of Contents
Cover Page ..............................................
1
Table of Contents .........................................
2
Case Narrative ...........................................
3
Definitions/Glossary.......................................
4
Certification Summary ......................................
5
Sample Summary .........................................
6
Method Summary .........................................
7
Lab Chronicle ............................................
8
Client Sample Results ......................................
12
QC Sample Results ........................................
19
QC Association Summary ...................................
23
Chain of Custody ..........................................
25
Receipt Checklists .........................................
27
Eurofins Pittsburgh
Page 2 of 27 6/30/2022

Case Narrative
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-139618-1
Laboratory: Eurofins Pittsburgh
Narrative
CASE NARRATIVE
Client: Ramboll US Corporation
Project: Pond Sampling and Evaluation
Report Number: 180-139618-1
Job ID: 180-139618-1
With the exceptions noted as flags or footnotes, standard analytical protocols were followed in the analysis of the samples and no
problems were encountered or anomalies observed. In addition all laboratory quality control samples were within established control
limits, with any exceptions noted below. Each sample was analyzed to achieve the lowest possible reporting limit within the constraints of
the method. In some cases, due to interference or analytes present at high concentrations, samples were diluted. For diluted samples,
the reporting limits are adjusted relative to the dilution required.
Calculations are performed before rounding to avoid round -off errors in calculated results.
All holding times were met and proper preservation noted for the methods performed on these samples, unless otherwise detailed in the
individual sections below.
RECEIPT
The samples were received on 06/14/2022; the samples arrived in good condition, properly preserved and on ice. The temperature of the
coolers at receipt was 4.7 C.
PESTICIDES
Surrogate recovery for the following samples were outside control limits: P-4-061022-0-1 (180-139618-1) and P-2-061022-2-3
(180-139618-3[MS]). Evidence of matrix interference is present; therefore, re -extraction and/or re -analysis was not performed.
delta-BHC was detected in method blank MB 180-402836/1-B at a level exceeding the reporting limit. If the associated sample reported a
result above the MDL and/or RL, the result has been flagged. This compound was not found in any samples, therefore sample results
have been qualified and reported.
cis -Chlordane failed the recovery criteria low for the MSD of sample P-2-061022-2-3MSD (180-139618-3) in batch 180-403330.
Heptachlor exceeded the RPD limit.
METALS
Arsenic and Copper failed the recovery criteria low for the MS of sample P-2-061022-2-3MS (180-139618-3) in batch 180-403132. Arsenic
and Copper failed the recovery criteria low for the MSD of sample P-2-061022-2-3MSD (180-139618-3) in batch 180-403132.
PERCENT SOLIDS
No analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page.
Eurofins Pittsburgh
Page 3 of 27 6/30/2022

Definitions/Glossary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Qualifiers
.r141&-r
Qualifier Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.
F2 MS/MSD RPD exceeds control limits
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
p The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported.
S1+ Surrogate recovery exceeds control limits, high biased.
Metals
Qualifier Qualifier Description
F1 MS and/or MSD recovery exceeds control limits.
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
a Listed under the "D" column to designate that the result is reported on a dry weight basis
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level'
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRIES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Job ID: 180-139618-1
C
Eurofins Pittsburgh
Page 4 of 27 6/30/2022

Accreditation/Certification Summary
Client: Ramboll US Corporation Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Laboratory: Eurofins Pittsburgh
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (VWV/SV) State 434 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
254OG Sediment Percent Moisture
2540G Sediment Percent Solids
EPA 8081 B LL 3541 Sediment Endosulfan, Total
Eurofins Pittsburgh
Page 5 of 27 6/30/2022

Sample Summary
Client: Ramboll US Corporation Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Lab Sample ID
Client Sample ID
Matrix
Collected
Received
180-139618-1
P-4-061022-0-1
Sediment
06/10/22 09:55
06/14/22 09:24
180-139618-2
P-2-061022-1-2
Sediment
06/10/22 09:30
06/14/22 09:24
180-139618-3
P-2-061022-2-3
Sediment
06/10/22 09:45
06/14/22 09:24
180-139618-4
P-3-061022-1-2
Sediment
06/10/22 10:45
06/14/22 09:24
180-139618-5
DUP-061022
Sediment
06/10/22 11:00
06/14/22 09:24
180-139618-6
P-1-061022-1-2
Sediment
06/10/22 11:30
06/14/22 09:24
180-139618-7
P-1-061022-2.5-3.5
Sediment
06/10/22 11:40
06/14/22 09:24
Page 6 of 27 Eurofins Pik MV22

Method Summary
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-139618-1
Method
Method Description
Protocol
Laboratory
EPA 8081 B ILL
Organochlorine Pesticides (GC)
SW846
TAL PIT
EPA 6020B
Metals (ICP/MS)
SW846
TAL PIT
2540G
SM 2540G
SM22
TAL PIT
3050B
Preparation, Metals
SW846
TAL PIT
3541
Automated Soxhlet Extraction (Low Level)
SW846
TAL PIT
3640A
Gel -Permeation Cleanup
SW846
TAL PIT
Protocol References:
SM22 = Standard Methods For The Examination Of Water And Wastewater, 22nd Edition
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL [phone]
Eurofins Pittsburgh
Page 7 of 27 6/30/2022

Lab Chronicle
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-4-061022-0-1
Lab Sample ID: 180-139618-1
Date Collected: 06/10/22 09:55
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method
Run Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121 06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: P-4-061022-0-1
Lab Sample ID: 180-139618-1
Date Collected: 06/10/22 09:55
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 82.0
Batch Batch
Dil Initial
Final Batch Prepared •
Prep Type Type Method
Run Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Prep 3541
30.2 g
10.0 mL 402836 06/ 22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL 403275 06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330 06/27/22 14:39 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.00 g
100 mL 402050 06/15/22 08:59 KWP TAL PIT
Total/NA Analysis EPA6020B
1
403132 06/23/22 19:43 RSK TAL PIT Is
Instrument ID: NEMO
Client Sample ID: P-2-061022-1-2
Lab Sample ID: 180-139618-2
Date Collected: 06/10/22 09:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method
Run Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121 06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: P-2-061022-1-2
Lab Sample ID: 180-139618-2
Date Collected: 06/10/22 09:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 73.6
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method
Run Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Prep 3541
30.4 g
10.0 mL 402836 06/22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL 403275 06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330 06/27/22 14:54 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.04 g
100 mL 402050 06/15/22 08:59 KWP TAL PIT
Total/NA Analysis EPA6020B
1
403132 06/23/22 19:45 RSK TAL PIT
Instrument ID: NEMO
Client Sample ID: P-2-061022-2-3
Lab Sample ID: 180-139618-3
Date Collected: 06/10/22 09:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method
Run Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121 06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Page 8 of 27
Eurofins Pittsburgh
6/30/2022

Lab Chronicle
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-2-061022-2-3
Lab Sample ID: 180-139618-3
Date Collected: 06/10/22 09:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 82.6
Batch Batch
Dil Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor Amount
Amount
Number
or Analyzed Analyst Lab
Total/NA Prep 3541
30.2 g
10.0 mL
402836
06/ 22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL
403275
06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330
06/27/22 14:23 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.04 g
100 mL
402050
06/15/22 08:59 KWP TAL PIT
Total/NA Analysis EPA6020B
1
403132
06/23/22 19:48 RSK TAL PIT
Instrument ID: NEMO
Client Sample ID: P-3-061022-1-2
Lab Sample ID: 180-139618-4
Date Collected: 06/10/22 10:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor Amount
Amount
Number
or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121
06/15/22 18:07 ELS TAL PIT
Is
Instrument ID: NOEQUIP
Client Sample ID: P-3-061022-1-2
Lab Sample ID: 180-139618-4
Date Collected: 06/10/22 10:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 75.5
Batch Batch
Dil Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor Amount
Amount
Number
or Analyzed Analyst Lab
Total/NA Prep 3541
30.4 g
10.0 mL
402836
06/22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL
403275
06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330
06/27/22 15:10 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.00 g
100 mL
402050
06/15/22 08:59 KWP TAL PIT
Total/NA Analysis EPA 6020B
1
403132
06/23/22 20:03 RSK TAL PIT
Instrument ID: NEMO
Client Sample ID: DUP-061022
Lab Sample ID: 180-139618-5
Date Collected: 06/10/22 11:00
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor Amount
Amount
Number
or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121
06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: DUP-061022
Lab Sample ID: 180-139618-5
Date Collected: 06/10/22 11:00
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 74.5
Batch Batch
Dil Initial
Final
Batch
Prepared
Prep Type Type Method
Run Factor Amount
Amount
Number
or Analyzed Analyst Lab
Total/NA Prep 3541
30.3 g
10.0 mL
402836
06/22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL
403275
06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330
06/27/22 15:26 APD TAL PIT
Instrument ID: CHGC15
Page 9 of 27
Eurofins Pittsburgh
6/30/2022

Lab Chronicle
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: DUP-061022
Lab Sample ID: 180-139618-5
Date Collected: 06/10/22 11:00
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 74.5
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method Run
Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Prep 3050B
2.01 g
100 mL 402050 06/15/22 08:59 KWP TAL PIT
Total/NA Analysis EPA 6020B
1
403132 06/23/22 20:05 RSK TAL PIT
Instrument ID: NEMO
Client Sample ID: P-1-061022-1-2
Lab Sample ID: 180-139618-6
Date Collected: 06/10/22 11:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method Run
Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121 06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: P-1-061022-1-2
Lab Sample ID: 180-139618-6
Date Collected: 06/10/22 11:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 55.4
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method Run
Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Prep 3541
30.1 g
10.0 mL 402836 06/22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL 403275 06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330 06/27/22 15:41 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.05 g
100 mL 402050 06/15/22 09:03 KWP TAL PIT
Total/NA Analysis EPA 6020B
1
403132 06/23/22 20:08 RSK TAL PIT
Instrument ID: NEMO
Client Sample ID: P-1-061022-2.5-3.5
Lab Sample ID: 180-139618-7
Date Collected: 06/10/22 11:40
Matrix: Sediment
Date Received: 06/14/22 09:24
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method Run
Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Analysis 254OG
1
402121 06/15/22 18:07 ELS TAL PIT
Instrument ID: NOEQUIP
Client Sample ID: P-1-061022-2.5-3.5
Lab Sample ID: 180-139618-7
Date Collected: 06/10/22 11:40
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids: 80.1
Batch Batch
Dil Initial
Final Batch Prepared
Prep Type Type Method Run
Factor Amount
Amount Number or Analyzed Analyst Lab
Total/NA Prep 3541
30.5 g
10.0 mL 402836 06/ 22/22 08:54 VJC TAL PIT
Total/NA Cleanup 3640A
5.0 mL
0.5 mL 403275 06/25/22 11:10 VJC TAL PIT
Total/NA Analysis EPA 8081 B LL
1
403330 06/27/22 17:15 APD TAL PIT
Instrument ID: CHGC15
Total/NA Prep 3050B
2.04 g
100 mL 402050 06/15/22 09:03 KWP TAL PIT
Total/NA Analysis EPA 6020B
1
403132 06/23/22 20:11 RSK TAL PIT
Instrument ID: NEMO
Page 10 of 27
Eurofins Pittsburgh
6/30/2022

Lab Chronicle
Client: Ramboll US Corporation Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Laboratory References:
TAL PIT = Eurofins Pittsburgh, 301 Alpha Drive, RIDC Park, Pittsburgh, PA 15238, TEL [phone]
Analyst References:
Lab: TAL PIT
Batch Type: Cleanup
VJC = Vincent Cervone
Batch Type: Prep
KWP = Kenneth Peters
VJC = Vincent Cervone
Batch Type: Analysis
APD = Aaron DeLeo
ELS = Edwin Shireman
RSK = Robert Kurtz
0
Eurofins Pittsburgh
Page 11 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-4-061022-0-1
Lab Sample
ID: 180-139618-1
Date Collected: 06/10/22 09:55
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
82.0
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.050
0.016
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
alpha-BHC
ND
0.050
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
beta-BHC
ND
0.050
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
delta-BHC
ND
0.050
0.016
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
gamma-BHC (Lindane)
0.043 J
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
cis -Chlordane
ND
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
trans -Chlordane
ND
0.050
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
4,4'-DDD
ND
0.050
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
Chlordane (technical)
ND
0.50
0.22
ug/Kg
*
06/22/22 08:54
06/27/22 14:39
1
4,4'-DDE
0.14
0.050
0.010
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
4,4'-DDT
ND
0.050
0.036
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Dieldrin
ND
0.050
0.013
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endosulfan I
ND
0.050
0.014
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endosulfan 11
ND
0.050
0.011
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endosulfan sulfate
ND
0.050
0.023
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endrin
ND
0.050
0.0094
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endrin aldehyde
ND
0.050
0.018
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endrin ketone
ND
0.050
0.0070
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Heptachlor
ND
0.050
0.016
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Heptachlor epoxide
ND
0.050
0.013
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Methoxychlor
ND
0.050
0.020
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Toxaphene
ND
2.0
1.4
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Endosulfan, Total
ND
0.10
0.025
ug/Kg
06/22/22 08:54
06/27/22 14:39
1
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
27
10 -105
06/22/22 08:54
06/27/22 14:39
1
Tetrachloro-m-xylene
39
10 -105
06/22/22 08:54
06/27/22 14:39
1
DCB Decachlorobiphenyl (Surr)
1118 S1+
25-107
06/22/22 08:54
06/27/22 14:39
1
DCB Decachlorobiphenyl (Surr)
46 p
25 -107
06/22/22 08:54
06/27/22 14:39
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
1.1
0.061
0.035
mg/Kg
*
06/15/22 08:59
06/23/22 19:43
1
Copper
2.7
0.18
0.13
mg/Kg
*
06/15/22 08:59
06/23/22 19:43
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
18.0
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
82.0
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: P-2-061022-1-2
Lab Sample
ID: 180-139618-2
Date Collected: 06/10/22 09:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
73.6
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.056
0.017
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
alpha-BHC
ND
0.056
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
beta-BHC
ND
0.056
0.015
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
delta-BHC
ND
0.056
0.018
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
gamma-BHC (Lindane)
ND
0.056
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Eurofins Pittsburgh
Page 12 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-2-061022-1-2
Lab Sample
ID: 180-139618-2
Date Collected: 06/10/22 09:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
73.6
Method: EPA 8081 B LL - Organochlorine
Pesticides (GC) (Continued)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
cis -Chlordane
ND
0.056
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
trans -Chlordane
ND
0.056
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
4,4'-DDD
0.62
0.056
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Chlordane (technical)
ND
0.56
0.24
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
4,4'-DDE
0.73
0.056
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
4,4'-DDT
ND
0.056
0.040
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Dieldrin
0.031 J p
0.056
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Endosulfan I
ND
0.056
0.015
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Endosulfan 11
ND
0.056
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:54
1
Endosulfan sulfate
ND
0.056
0.026
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Endrin
ND
0.056
0.010
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Endrin aldehyde
ND
0.056
0.020
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Endrin ketone
ND
0.056
0.0077
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Heptachlor
ND
0.056
0.018
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Heptachlor epoxide
ND
0.056
0.014
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Methoxychlor
ND
0.056
0.022
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Toxaphene
ND
2.2
1.5
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Endosulfan, Total
ND
0.11
0.028
ug/Kg
06/22/22 08:54
06/27/22 14:54
1
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
DY Fac
Tetrachloro-m-xylene
22
10 -105
06/22/22 08:54
06/27/22 14:54
1
Tetrachloro-m-xylene
30
10 -105
06/22/22 08:54
06/27/22 14:54
1
DCB Decachlorobiphenyl (Surr)
74
25 -107
06/22/22 08:54
06/27/22 14:54
1
LDCB Decachlorobiphenyl (Surr)
34 p
25 -107
06/22/22 08:54
06/27/22 14:54
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
0.72
0.067
0.039
mg/Kg
*
06/15/22 08:59
06/23/22 19:45
1
Copper
4.1
0.20
0.14
mg/Kg
*
06/15/22 08:59
06/23/22 19:45
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
26.4
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
73.6
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: P-2-061022-2-3
Lab Sample
ID: 180-139618-3
Date Collected: 06/10/22 09:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
82.6
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.050
0.016
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
alpha-BHC
ND
0.050
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
beta-BHC
ND
0.050
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
delta-BHC
ND
0.050
0.016
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
gamma-BHC (Lindane)
ND
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
cis -Chlordane
ND F1
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
trans -Chlordane
ND
0.050
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
4,4'-DDD
ND
0.050
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Chlordane (technical)
ND
0.50
0.21
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
4,4'-DDE
ND
0.050
0.010
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Eurofins Pittsburgh
Page 13 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-2-061022-2-3
Lab Sample
ID: 180-139618-3
Date Collected: 06/10/22 09:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
82.6
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
4,4'-DDT
ND F2
0.050
0.036
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Dieldrin
0.024 J p
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endosulfan I
ND
0.050
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endosulfan 11
ND
0.050
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endosulfan sulfate
ND
0.050
0.023
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endrin
ND
0.050
0.0094
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endrin aldehyde
ND
0.050
0.018
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endrin ketone
ND
0.050
0.0069
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Heptachlor
ND F2
0.050
0.016
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Heptachlor epoxide
ND
0.050
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Methoxychlor
ND F2
0.050
0.020
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Toxaphene
ND
2.0
1.4
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Endosulfan, Total
ND
0.10
0.025
ug/Kg
*
06/22/22 08:54
06/27/22 14:23
1
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
25
10 -105
06/22/22 08:54
06/27/22 14:23
1
Tetrachloro-m-xylene
35
10 -105
06/22/22 08:54
06/27/22 14:23
1
DCB Decachlorobiphenyl (Surr)
48
25 -107
06/22/22 08:54
06/27/22 14:23
1
DCB Decachlorobiphenyl (Surr)
47
25 -107
06/22/22 08:54
06/27/22 14:23
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
0.70 F1
0.059
0.034
mg/Kg
*
06/15/22 08:59
06/23/22 19:48
1
Copper
2.8 F1
0.18
0.12
mg/Kg
*
06/15/22 08:59
06/23/22 19:48
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
17.4
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
82.6
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: P-3-061022-1-2
Lab Sample
ID: 180-139618-4
Date Collected: 06/10/22 10:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
75.5
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.054
0.017
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
alpha-BHC
ND
0.054
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
beta-BHC
ND
0.054
0.015
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
delta-BHC
ND
0.054
0.017
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
gamma-BHC (Lindane)
ND
0.054
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
cis -Chlordane
ND
0.054
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
trans -Chlordane
ND
0.054
0.013
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
4,4'-DDD
0.77
0.054
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Chlordane (technical)
ND
0.54
0.23
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
4,4'-DDE
0.99
0.054
0.011
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
4,4'-DDT
0.33
0.054
0.039
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Dieldrin
0.058 p
0.054
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endosulfan I
ND
0.054
0.015
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endosulfan 11
ND
0.054
0.012
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endosulfan sulfate
ND
0.054
0.025
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Eurofins Pittsburgh
Page 14 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-3-061022-1-2
Lab Sample
ID: 180-139618-4
Date Collected: 06/10/22 10:45
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
75.5
Method: EPA 8081 B LL - Organochlorine
Pesticides (GC) (Continued)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Endrin
ND
0.054
0.010
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endrin aldehyde
ND
0.054
0.019
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endrin ketone
ND
0.054
0.0075
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Heptachlor
ND
0.054
0.017
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Heptachlor epoxide
ND
0.054
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Methoxychlor
ND
0.054
0.021
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Toxaphene
ND
2.2
1.5
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Endosulfan, Total
ND
0.11
0.027
ug/Kg
*
06/22/22 08:54
06/27/22 15:10
1
Surrogate %Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
35
10 -105
06/22/22 08:54
06/27/22 15:10
1
Tetrachloro-m-xylene
47
10 -105
06/22/22 08:54
06/27/22 15:10
1
DCB Decachlorobiphenyl (Surr)
81
25 -107
06/22/22 08:54
06/27/22 15:10
1
DCB Decachlorobiphenyl (Surr)
65
25 -107
06/22/22 08:54
06/27/22 15:10
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
1.2
0.066
0.038
mg/Kg
*
06/15/22 08:59
06/23/22 20:03
1
Copper
5.6
0.20
0.14
mg/Kg
*
06/15/22 08:59
06/23/22 20:03
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
24.5
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
75.5
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: DUP-061022
Lab Sample
ID: 180-139618-5
Date Collected: 06/10/22 11:00
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
74.5
Method: EPA 8081 B LL - Organochlorine
Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.055
0.017
ug/Kg
*
06/22/22 08:54
06/27/22 15:26
1
alpha-BHC
ND
0.055
0.014
ug/Kg
*
06/22/22 08:54
06/27/22 15:26
1
beta-BHC
ND
0.055
0.015
ug/Kg
*
06/22/22 08:54
06/27/22 15:26
1
delta-BHC
ND
0.055
0.018
ug/Kg
*
06/22/22 08:54
06/27/22 15:26
1
gamma-BHC (Lindane)
ND
0.055
0.014
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
cis -Chlordane
ND
0.055
0.014
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
trans -Chlordane
ND
0.055
0.013
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
4,4'-DDD
0.46
0.055
0.012
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Chlordane (technical)
ND
0.55
0.24
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
4,4'-DDE
0.63
0.055
0.011
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
4,4'-DDT
0.15 p
0.055
0.040
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Dieldrin
0.041 J p
0.055
0.014
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endosulfan I
ND
0.055
0.015
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endosulfan 11
ND
0.055
0.012
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endosulfan sulfate
ND
0.055
0.025
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endrin
ND
0.055
0.010
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endrin aldehyde
ND
0.055
0.020
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Endrin ketone
ND
0.055
0.0076
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Heptachlor
ND
0.055
0.017
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Heptachlor epoxide
ND
0.055
0.014
ug/Kg
06/22/22 08:54
06/27/22 15:26
1
Eurofins Pittsburgh
Page 15 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-139618-1
Client Sample ID: DUP-061022 Lab Sample ID: 180-139618-5
Date Collected: 06/10/22 11:00 Matrix: Sediment
Date Received: 06/14/22 09:24 Percent Solids: 74.5
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed Dil Fac
Methoxychlor
ND
0.055
0.022
ug/Kg
*
06/22/22 08:54
06/27/22 15:26 1
Toxaphene
ND
2.2
1.5
ug/Kg
*
06/22/22 08:54
06/27/22 15:26 1
Endosulfan, Total
ND
0.11
0.027
ug/Kg
*
06/22/22 08:54
06/27/22 15:26 1
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
DY Fac
Tetrachloro-m-xylene
35
10 -105
06/22/22 08:54
06/27/22 15:26
1
Tetrachloro-m-xylene
46
10 -105
06/22/22 08:54
06/27/22 15:26
1
DCB Decachlorobiphenyl (Surr)
66
25 -107
06/22/22 08:54
06/27/22 15:26
1
DCB Decachlorobiphenyl (Surr)
61
25 -107
06/22/22 08:54
06/27/22 15:26
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
1.1
0.067
0.039
mg/Kg
*
06/15/22 08:59
06/23/22 20:05
1
Copper
5.1
0.20
0.14
mg/Kg
*
06/15/22 08:59
06/23/22 20:05
1
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
25.5
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
74.5
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: P-1-061022-1-2
Lab Sample
ID: 180-139618-6
Date Collected: 06/10/22 11:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
55.4
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.075
0.023
ug/Kg
*
06/22/22 08:54
06/27/22 15:41
1
alpha-BHC
ND
0.075
0.018
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
beta-BHC
ND
0.075
0.021
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
delta-BHC
ND
0.075
0.024
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
gamma-BHC (Lindane)
ND
0.075
0.019
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
cis -Chlordane
0.026 J p
0.075
0.019
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
trans -Chlordane
ND
0.075
0.017
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
4,4'-DDD
4.0
0.075
0.016
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Chlordane (technical)
ND
0.75
0.32
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
4,4'-DDE
2.4
0.075
0.015
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
4,4'-DDT
0.32
0.075
0.054
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Dieldrin
ND
0.075
0.019
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endosulfan I
ND
0.075
0.020
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endosulfan 11
ND
0.075
0.017
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endosulfan sulfate
ND
0.075
0.034
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endrin
ND
0.075
0.014
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endrin aldehyde
ND
0.075
0.027
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Endrin ketone
ND
0.075
0.010
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Heptachlor
ND
0.075
0.023
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Heptachlor epoxide
ND
0.075
0.019
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Methoxychlor
ND
0.075
0.029
ug/Kg
06/22/22 08:54
06/27/22 15:41
1
Toxaphene
ND
3.0
2.0
ug/Kg
*
06/22/22 08:54
06/27/22 15:41
1
Endosulfan, Total
ND
0.15
0.037
ug/Kg
*
06/22/22 08:54
06/27/22 15:41
1
Eurofins Pittsburgh
Page 16 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Client Sample ID: P-1-061022-1-2
Lab Sample
ID: 180-139618-6
Date Collected: 06/10/22 11:30
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
55.4
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
21
10 -105
06/22/22 08:54
06/27/22 15:41
1
Tetrachloro-m-xylene
30
10 -105
06/22/22 08:54
06/27/22 15:41
1
DCB Decachlorobiphenyl (Surr)
40
25 -107
06/22/22 08:54
06/27/22 15:41
1
DCB Decachlorobiphenyl (Surr)
42
25 -107
06/22/22 08:54
06/27/22 15:41
1
Method: EPA 6020B - Metals (ICP/MS)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Arsenic
2.0
0.088
0.051
mg/Kg
*
06/15/22 09:03
06/23/22 20:08
1
Copper
6.8
0.26
0.18
mg/Kg
*
06/15/22 09:03
06/23/22 20:08
1 •
General Chemistry
Analyte
Result Qualifier
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
Percent Moisture
44.6
0.1
0.1
%
06/15/22 18:07
1
Percent Solids
55.4
0.1
0.1
%
06/15/22 18:07
1
Client Sample ID: P-1-061022-2.5-3.5
Lab Sample
ID: 180-139618-7
Date Collected: 06/10/22 11:40
Matrix: Sediment
Date Received: 06/14/22 09:24
Percent Solids:
80.1
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Analyte
Result Qualifier
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
Aldrin
ND
0.051
0.016
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
alpha-BHC
ND
0.051
0.013
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
beta-BHC
ND
0.051
0.014
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
delta-BHC
ND
0.051
0.016
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
gamma-BHC (Lindane)
ND
0.051
0.013
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
cis -Chlordane
ND
0.051
0.013
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
trans -Chlordane
ND
0.051
0.012
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
4,4'-DDD
ND
0.051
0.011
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Chlordane (technical)
ND
0.51
0.22
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
4,4'-DDE
ND
0.051
0.010
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
4,4'-DDT
ND
0.051
0.037
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Dieldrin
ND
0.051
0.013
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endosulfan I
ND
0.051
0.014
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endosulfan 11
ND
0.051
0.011
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endosulfan sulfate
ND
0.051
0.024
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endrin
ND
0.051
0.0096
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endrin aldehyde
ND
0.051
0.018
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Endrin ketone
ND
0.051
0.0071
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Heptachlor
ND
0.051
0.016
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Heptachlor epoxide
ND
0.051
0.013
ug/Kg
06/22/22 08:54
06/27/22 17:15
1
Methoxychlor
ND
0.051
0.020
ug/Kg
*
06/22/22 08:54
06/27/22 17:15
1
Toxaphene
ND
2.0
1.4
ug/Kg
*
06/22/22 08:54
06/27/22 17:15
1
Endosulfan, Total
ND
0.10
0.025
ug/Kg
*
06/22/22 08:54
06/27/22 17:15
1
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
Dil Fac
Tetrachloro-m-xylene
22
10 -105
06/22/22 08:54
06/27/22 17:15
1
Tetrachloro-m-xylene
30
10 -105
06/22/22 08:54
06/27/22 17:15
1
DCB Decachlorobiphenyl (Surr)
44
25 -107
06/22/22 08:54
06/27/22 17:15
1
DCB Decachlorobiphenyl (Surr)
44
25 -107
06/22/22 08:54
06/27/22 17:15
1
Eurofins Pittsburgh
Page 17 of 27 6/30/2022

Client Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Job ID: 180-139618-1
Client Sample ID: P-1-061022-2.5-3.5 Lab Sample ID: 180-139618-7
Date Collected: 06/10/22 11:40 Matrix: Sediment
Date Received: 06/14/22 09:24 Percent Solids: 80.1
Method: EPA 6020B - Metals (ICP/MS)
Analyte Result Qualifier
Arsenic
0.67
Copper
0.73
General Chemistry
Analyte
Result Qualifier
Percent Moisture
19.9
Percent Solids
80.1
RL
MDL
Unit
D
Prepared
Analyzed
Dil Fac
0.061
0.035
mg/Kg
*
06/15/22 09:03
06/23/22 20:11
1
0.18
0.13
mg/Kg
*
06/15/22 09:03
06/23/22 20:11
1
RL
RL
Unit
D
Prepared
Analyzed
Dil Fac
0.1
0.1
%
06/15/2218:07
1
0.1
0.1
%
06/15/2218:07
1
0
Eurofins Pittsburgh
Page 18 of 27 6/30/2022

QC Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 8081 B LL - Organochlorine Pesticides (GC)
Lab Sample ID: MB 180-402836/1-B
Client Sample ID: Method Blank
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 403330
Prep Batch: 402836
MB MB
Analyte
Result Qualifier
RL
MDL
Unit
D Prepared
Analyzed
Dil Fac
Aldrin
ND
0.042
0.013
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
alpha-BHC
ND
0.042
0.010
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
beta-BHC
ND
0.042
0.011
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
delta-BHC
0.0727
0.042
0.013
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
gamma-BHC (Lindane)
ND
0.042
0.011
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
cis -Chlordane
ND
0.042
0.010
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
trans -Chlordane
ND
0.042
0.0097
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
4,4'-DDD
ND
0.042
0.0088
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Chlordane (technical)
ND
0.42
0.18
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
4,4'-DDE
ND
0.042
0.0085
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
4,4'-DDT
ND
0.042
0.030
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Dieldrin
ND
0.042
0.010
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endosulfan I
ND
0.042
0.011
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endosulfan 11
ND
0.042
0.0092
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endosulfan sulfate
ND
0.042
0.019
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endrin
ND
0.042
0.0078
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endrin aldehyde
ND
0.042
0.015
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endrin ketone
ND
0.042
0.0058
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Heptachlor
ND
0.042
0.013
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Heptachlor epoxide
ND
0.042
0.011
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Methoxychlor
ND
0.042
0.016
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Toxaphene
ND
1.7
1.1
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
Endosulfan, Total
ND
0.083
0.021
ug/Kg
06/22/22 08:54
06/27/22 13:21
1
MB MB
Surrogate
%Recovery Qualifier
Limits
Prepared
Analyzed
DY Fac
Tetrachloro-m-xylene
40
10 -105
06/22/22 08:54
06/27/22 13:21
1
Tetrachloro-m-xylene
50
10 -105
06/22/22 08:54
06/27/22 13:21
1
DCB Decachlorobiphenyl (Surr)
73
25 -107
06/22/22 08:54
06/27/22 13:21
1
DCB Decachlorobiphenyl (Surr)
75
25 -107
06/22/22 08:54
06/27/22 13:21
1
Lab Sample ID: LCS 180-402836/2-B
Matrix: Sediment
Analysis Batch: 403456
Analyte
Spike
Added
LCS LCS
Result Qualifier
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 402836
%Rec
Unit D %Rec Limits
Aldrin
1.67
0.903
ug/Kg
54
25 - 139
alpha-BHC
1.67
0.873
ug/Kg
52
30-131
beta-BHC
1.67
0.969
ug/Kg
58
26 - 128
delta-BHC
1.67
1.08
ug/Kg
65
20-133
gamma-BHC (Lindane)
1.67
0.966
ug/Kg
58
31 - 134
cis -Chlordane
1.67
1.03
ug/Kg
62
25-137
trans -Chlordane
1.67
1.07
ug/Kg
64
31 - 131
4,4'-DDD
1.67
1.21
ug/Kg
72
32 - 135
4,4'-DDE
1.67
1.12
ug/Kg
67
28 - 128
4,4'-DDT
1.67
1.36
ug/Kg
81
28 - 121
Dieldrin
1.67
1.11
ug/Kg
67
39 - 124
Endosulfan 1
1.67
1.09
ug/Kg
65
24 - 141
Endosulfan II
1.67
1.11
ug/Kg
67
38 - 125
in
Eurofins Pittsburgh
Page 19 of 27 6/30/2022

QC Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Lab Sample ID: LCS 180-402836/2-B
Matrix: Sediment
Analysis Batch: 403456
Analyte
Spike
Added
LCS LCS
Result Qualifier
Endosulfan sulfate
1.67
1.12
Endrin
1.67
1.16
Endrin aldehyde
1.67
0.959
Endrin ketone
1.67
1.10
Heptachlor
1.67
1.18
Heptachlor epoxide
1.67
1.03
Methoxychlor
1.67
1.27
LCS LCS
Surrogate %Recovery Qualifier Limits
Tetrachloro-m-xylene 35 10 - 105
Tetrachloro-m-xylene 45 10 - 105
DCB Decachlorobiphenyl (Surr) 82 25- 107
DCB Decachlorobiphenyl (Surr) 83 25 - 107
Lab Sample ID: 180-139618-3 MS
Matrix: Sediment
Analysis Batch: 403330
Job ID: 180-139618-1
Client Sample ID: Lab Control Sample
Prep Type: Total/NA
Prep Batch: 402836
% Rec
Unit
D %Rec
Limits
ug/Kg
67
23-130
ug/Kg
69
32 - 131
ug/Kg
58
27-124
ug/Kg
66
46-128
ug/Kg
71
24-146
ug/Kg
62
25-142
ug/Kg
76
31 - 136
Analyte
Sample Sample
Result Qualifier
Spike
Added
MS MS
Result Qualifier
Unit
Aldrin
ND
2.02
0.866
ug/Kg
alpha-BHC
ND
2.02
0.808
ug/Kg
beta-BHC
ND
2.02
0.892
ug/Kg
delta-BHC
ND
2.02
1.06
ug/Kg
gamma-BHC (Lindane)
ND
2.02
0.898
ug/Kg
cis -Chlordane
ND
F1
2.02
0.667
p
ug/Kg
trans -Chlordane
ND
2.02
0.939
ug/Kg
4,4'-DDD
ND
2.02
1.77
ug/Kg
4,4'-DDE
ND
2.02
1.27
ug/Kg
4,4'-DDT
ND
F2
2.02
1.07
p
ug/Kg
Dieldrin
0.024
J p
2.02
1.19
ug/Kg
Endosulfan I
ND
2.02
1.03
ug/Kg
Endosulfan 11
ND
2.02
1.09
ug/Kg
Endosulfan sulfate
ND
2.02
1.17
ug/Kg
Endrin
ND
2.02
1.18
ug/Kg
Endrin aldehyde
ND
2.02
1.51
ug/Kg
Endrin ketone
ND
2.02
1.09
ug/Kg
Heptachlor
ND
F2
2.02
0.733
p
ug/Kg
Heptachlor epoxide
ND
2.02
0.930
ug/Kg
Methoxychlor
ND
F2
2.02
0.948
p
ug/Kg
MS MS
Surrogate %Recovery Qualifier Limits
Tetrachloro-m-xylene 69 10 - 105
Tetrachloro-m-xylene 91 10 - 105
DCB Decachlorobiphenyl (Surr) 139 S1+ 25- 107
DCB Decachlorobiphenyl (Surr) 138 S1+ 25- 107
in
Client Sample ID: P-2-061022-2-3
Prep Type: Total/NA
Prep Batch: 402836
% Rec
D
%Rec
Limits
#
43
25-139
#
40
30-131
#
44
26-128
#
52
20-133
#
44
31-134
#
33
25-137
#
47
31 - 131
#
88
32-135
#
63
28-128
#
53
28-121
#
58
39-124
#
51
24 - 141
#
54
38-125
#
58
23-130
#
59
32 - 131
#
75
27-124
#
54
46-128
#
36
24-146
46
25-142
#
47
31-136
Eurofins Pittsburgh
Page 20 of 27 6/30/2022

QC Sample Results
Client: Ramboll US Corporation
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 8081 B LL - Organochlorine Pesticides (GC) (Continued)
Lab Sample ID: 180-139618-3 MSD
Matrix: Sediment
Analysis Batch: 403330
Analyte
Sample Sample
Result Qualifier
Spike
Added
MSD MSD
Result Qualifier
Aldrin
ND
2.01
0.910
alpha-BHC
ND
2.01
0.883
beta-BHC
ND
2.01
0.906
delta-BHC
ND
2.01
1.04
gamma-BHC (Lindane)
ND
2.01
0.923
cis -Chlordane
ND
F1
2.01
ND F1
trans -Chlordane
ND
2.01
0.932
4,4'-DDD
ND
2.01
1.20
4,4'-DDE
ND
2.01
1.12
4,4'-DDT
ND
F2
2.01
1.23
Dieldrin
0.024
J p
2.01
1.06
Endosulfan I
ND
2.01
1.00
Endosulfan 11
ND
2.01
1.05
Endosulfan sulfate
ND
2.01
1.14
Endrin
ND
2.01
1.06
Endrin aldehyde
ND
2.01
1.20
Endrin ketone
ND
2.01
1.11
Heptachlor
ND
F2
2.01
1.12 F2
Heptachlor epoxide
ND
2.01
0.934
Methoxychlor
ND
F2
2.01
1.28
MSD MSD
Surrogate %Recovery Qualifier Limits
Tetrachloro-m-xylene 30 10 - 105
Tetrachloro-m-xylene 44 10 - 105
DCB Decachlorobiphenyl (Surr) 58 25- 107
DCB Decachlorobiphenyl (Surr) 52 25 - 107
Method: EPA 6020B - Metals (ICP/MS)
Lab Sample ID: MB 180-402050/1-A
Matrix: Sediment
Analysis Batch: 403132
Analyte
Arsenic
Copper
MB MB
Result Qualifier RL MDL Unit
ND 0.050 0.029 mg/Kg
ND 0.15 0.10 mg/Kg
Job ID: 180-139618-1
Client Sample ID: P-2-061022-2-3
Prep Type: Total/NA
Prep Batch: 402836
%Rec
RPD
Unit
D
%Rec
Limits
RPD
Limit
ug/Kg
45
25-139
5
40
ug/Kg
#
44
30-131
9
40
ug/Kg
#
45
26-128
2
40
ug/Kg
#
52
20-133
1
40
ug/Kg
#
46
31-134
3
40
ug/Kg
#
0
25-137
NC
40
ug/Kg
#
46
31 - 131
1
40
ug/Kg
0
59
32-135
39
40
ug/Kg
0
56
28-128
13
40
ug/Kg
#
61
28-121
14
40
ug/Kg
#
52
39-124
11
40
ug/Kg
#
50
24-141
3
40
ug/Kg
#
52
38-125
4
40
ug/Kg
#
57
23-130
3
40
ug/Kg
#
53
32 - 131
11
40
ug/Kg
#
60
27-124
23
40
ug/Kg
#
55
46-128
2
40
ug/Kg
56
24-146
42
40
ug/Kg
#
46
25-142
0
40
ug/Kg
#
64
31-136
30
40
Client Sample ID: Method Blank
Prep Type: Total/NA
Prep Batch: 402050
D Prepared Analyzed Dil Fac
06/15/22 08:59 06/23/22 19:19 1
06/15/22 08:59 06/23/22 19:19 1
Lab Sample ID: LCS 180-402050/2-A
Client Sample ID: Lab Control Sample
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 403132
Prep Batch: 402050
Spike
LCS LCS
%Rec
Analyte
Added
Result Qualifier
Unit D %Rec Limits
Arsenic
50.0
45.0
mg/Kg 90 80 - 120
Copper
25.0
22.8
mg/Kg 91 80 - 120
in
Eurofins Pittsburgh
Page 21 of 27 6/30/2022

QC Sample Results
Client: Ramboll US Corporation
Job ID: 180-139618-1
Project/Site: Pond Sampling and Evaluatioon
Method: EPA 6020B - Metals (ICP/MS) (Continued)
Lab Sample ID: 180-139618-3 MS
Client Sample ID: P-2-061022-2-3
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 403132
Prep Batch: 402050
Sample Sample
Spike
MS
MS
%Rec
Analyte Result Qualifier
Added
Result
Qualifier
Unit
D %Rec Limits
Arsenic 0.70 F1
59.4
41.6
F1
mg/Kg
# 69 75 - 125
Copper 2.8 F1
29.7
21.5
F1
mg/Kg
# 63 75. 125
Lab Sample ID: 180-139618-3 MSD
Client Sample ID: P-2-061022-2-3
Matrix: Sediment
Prep Type: Total/NA
Analysis Batch: 403132
Prep Batch: 402050
Sample Sample
Spike
MSD
MSD
%Rec RPD
Analyte Result Qualifier
Added
Result
Qualifier
Unit
D %Rec Limits RPD Limit
Arsenic 0.70 F1
59.4
41.5
F1
mg/Kg
*1 69 75 - 125 0 20
Copper 2.8 F1
29.7
21.1
F1
mg/Kg
# 62 75. 125 2 20
Method: 254OG - SM 254OG
Lab Sample ID: 180-139618-3 DU
Client Sample ID: P-2-061022-2-3
Matrix: Sediment
Prep Type: Total/NA ■i�
Analysis Batch: 402121
Sample Sample
DU
DU
RPD
Analyte Result Qualifier
Result
Qualifier
Unit
D RPD Limit
Percent Moisture 17.4
18.0
%
3 10
Percent Solids 82.6
82.0
%
0.7 10
Eurofins Pittsburgh
Page 22 of 27 6/30/2022

QC Association Summary
Client: Ramboll US Corporation
Job ID:
180-139618-1
Project/Site: Pond Sampling
and Evaluatioon
GC Semi VOA
Prep Batch: 402836
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
3541
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
3541
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
3541
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
3541
180-139618-5
DUP-061022
Total/NA
Sediment
3541
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
3541
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
3541
MB 180-402836/1-B
Method Blank
Total/NA
Sediment
3541
LCS 180-402836/2-B
Lab Control Sample
Total/NA
Sediment
3541
MS
P-2-061022-2-3
Total/NA
Sediment
3541
�180-139618-3
180-139618-3 MSD
P-2-061022-2-3
Total/NA
Sediment
3541
Cleanup Batch: 403275
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
3640A
402836
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
3640A
402836
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
3640A
402836
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
3640A
402836
180-139618-5
DUP-061022
Total/NA
Sediment
3640A
402836
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
3640A
402836
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
3640A
402836
MB 180-402836/1-B
Method Blank
Total/NA
Sediment
3640A
402836
LCS 180-402836/2-B
Lab Control Sample
Total/NA
Sediment
3640A
402836
180-139618-3 MS
P-2-061022-2-3
Total/NA
Sediment
3640A
402836
180-139618-3 MSD
P-2-061022-2-3
Total/NA
Sediment
3640A
402836
Analysis Batch: 403330
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-5
DUP-061022
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
EPA 8081B LL
403275
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
EPA 8081 B LL
403275
MB 180-402836/1-B
Method Blank
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-3 MS
P-2-061022-2-3
Total/NA
Sediment
EPA 8081 B LL
403275
180-139618-3 MSD
P-2-061022-2-3
Total/NA
Sediment
EPA 8081 B LL
403275
Analysis Batch: 403456
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
LCS 180-402836/2-B Lab Control Sample Total/NA Sediment EPA 8081 B LL 403275
Metals
Prep Batch: 402050
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
3050B
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
3050B
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
3050B
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
3050B
Eurofins Pittsburgh
Page 23 of 27 6/30/2022

QC Association Summary
Client: Ramboll US Corporation
Job ID:
180-139618-1
Project/Site: Pond Sampling
and Evaluatioon
Metals (Continued)
Prep Batch: 402050 (Continued)
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-5
DUP-061022
Total/NA
Sediment
3050B
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
3050B
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
3050B
MB 180-402050/1-A
Method Blank
Total/NA
Sediment
3050B
LCS 180-402050/2-A
Lab Control Sample
Total/NA
Sediment
3050B
180-139618-3 MS
P-2-061022-2-3
Total/NA
Sediment
3050B
180-139618-3 MSD
P-2-061022-2-3
Total/NA
Sediment
3050B
Analysis Batch: 403132
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
EPA6020B
402050
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
EPA6020B
402050
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
EPA6020B
402050
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
EPA6020B
402050
180-139618-5
DUP-061022
Total/NA
Sediment
EPA6020B
402050
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
EPA6020B
402050
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
EPA6020B
402050
MB 180-402050/1-A
Method Blank
Total/NA
Sediment
EPA6020B
402050
LCS 180-402050/2-A
Lab Control Sample
Total/NA
Sediment
EPA6020B
402050
180-139618-3 MS
P-2-061022-2-3
Total/NA
Sediment
EPA6020B
402050
180-139618-3 MSD
P-2-061022-2-3
Total/NA
Sediment
EPA6020B
402050
General Chemistry
Analysis Batch: 402121
Lab Sample ID
Client Sample ID
Prep Type
Matrix
Method
Prep Batch
180-139618-1
P-4-061022-0-1
Total/NA
Sediment
254OG
180-139618-2
P-2-061022-1-2
Total/NA
Sediment
254OG
180-139618-3
P-2-061022-2-3
Total/NA
Sediment
254OG
180-139618-4
P-3-061022-1-2
Total/NA
Sediment
254OG
180-139618-5
DUP-061022
Total/NA
Sediment
254OG
180-139618-6
P-1-061022-1-2
Total/NA
Sediment
254OG
180-139618-7
P-1-061022-2.5-3.5
Total/NA
Sediment
254OG
180-139618-3 DU
P-2-061022-2-3
Total/NA
Sediment
254OG
Eurofins Pittsburgh
Page 24 of 27 6/30/2022

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Page 26 of 27
6/30/2022

Login Sample Receipt Checklist
Client: Ramboll US Corporation
Job Number: 180-139618-1
Login Number: 139618
List Number: 1
Creator: Watson, Debbie
Question
List Source: Eurofins Pittsburgh
Answer Comment
Radioactivity wasn't checked or is </= background as measured by a survey
N/A
meter.
The cooler's custody seal, if present, is intact.
True
Sample custody seals, if present, are intact.
True
The cooler or samples do not appear to have been compromised or
True
tampered with.
Samples were received on ice.
True
Cooler Temperature is acceptable.
True
Cooler Temperature is recorded.
True
COC is present.
True
COC is filled out in ink and legible.
True
COC is filled out with all pertinent information.
True
Is the Field Sampler's name present on COC?
True
There are no discrepancies between the containers received and the COC.
True
Samples are received within Holding Time (excluding tests with immediate
True
HTs)
Sample containers have legible labels.
True
Containers are not broken or leaking.
True
Sample collection date/times are provided.
True
Appropriate sample containers are used.
True
Sample bottles are completely filled.
True
Sample Preservation Verified.
True
There is sufficient vol. for all requested analyses, incl. any requested
True
MS/MSDs
Containers requiring zero headspace have no headspace or bubble is
True
<6mm (1/4").
Multiphasic samples are not present.
True
Samples do not require splitting or compositing.
True
Residual Chlorine Checked.
N/A
Eurofins Pittsburgh
Page 27 of 27 6/30/2022

ATTACHMENT 3
EMAIL CORRESPONDENCE FROM NCDEQ

Mike Hall
From: Lefler, Bruce <[e-mail]>
Sent: Thursday, July 14, 2022 12:50 PM
To: Mike Hall
Cc: Dori Sabeh
Subject: RE: [External] Peele Pesticide Site - Samples from Downgradient
Mike,
Thank you for providing the sampling information associated with the Finch Pond. Based on review of that information
and information in our file, we consider the sampling results to be likely historical application based and not associated
with the Peele Pesticide site. Therefore, submittal of a Site Notification Package is not required.
Thanks,
Bruce
Bru.e E. Leflff. Jr
hryc ogaalogisr, Di�rsiora of Ft'asfe l ra enwn
EQj�, North Carolina ]]epastrneut of Em-gonmeutal Qualih
919' W.5332 (Office)
•"" W.;.'N,40'­� Bruce Leffler cdenr._oi-
�
r?xar � e krJrx�rx k, trrrl pyrh�.s
From: Mike Hall <Michael.Hall@ram boll.com>
Sent: Thursday, July 14, 2022 11:19 AM
To: Lefler, Bruce <[e-mail]>
Cc: Dori Sabeh <[e-mail]>
Subject: [External] Peele Pesticide Site - Samples from Downgradient
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Bruce
Good morning. I appreciate you calling me back, and your time on the phone this morning. As requested, here are
the analytical results for the sampling of the Finch Pond (sample location figures, data summary table, and laboratory
reports).
Our sampling included two background samples (BG-1 and BG-2), as well as 4 locations within the pond. These
samples were analyzed for the list of parameters identified at the Peele Site (arsenic, copper, and pesticides). Our
results indicate the following:
• Arsenic was present in all the samples (both background and in the pond,) all but one, with a concentration
above the Residential PSRG. Given the relatively uniform concentration in both the background and pond
samples, this appears to be a naturally -occurring concentration, and not indicative of impact. In my
experience, elevated arsenic concentrations are not unusual at sites in this area.
• 4,4-DDT, 4,4-DDD, and 4,4-DDE were detected in one of the pond samples at concentrations above the
Region IV Ecological Screening value (ESV). All three of these constituents were detected in one of the
background samples, with 4,4-DDE at a concentration above the ESV. These presence of low concentrations
of this pesticide in both background and pond sediment suggest potential impact from widespread use of this
pesticide in the past, and not from the Peele Site. Once again, in my experience it is not uncommon to find
DDT/DDD/DDE at sites throughout North Carolina.

As discussed, the pond is now drained, and will remain that way. Our client (McGill) plans to breach the dam, and
regrade and stabilize the former pond as a stream, so most of the pond sediment is effectively soil at this point
(barring that which is actually within the stream). Based on this, our single detection of DDT/DDD/DDE does not
appear to represent a concern, and we wanted to get your input on this to better understand how we proceed from
this point.
Please let me know if you have questions or comments. I greatly appreciate your assistance with this.
Regards
Mike Hall, PG
SENIOR MANAGING SCIENTIST
081-E&H SE RESOURCES
D 919-987-3060
M 919-306-1160
[e-mail]
Ramboll
3214 Charles B. Root Wynd
Suite 130
Raleigh, NC 27612
USA
https://ramboll.com