NCS000548_Tier Notification_20240416

(�' DUKE Duke Energy
Marshall Steam Station
re ENERGY® 8320 East NC Highway 150
Terrell, NC 28682
CAROLINAS
April 15, 2024
Mr. Jerry Eplin, Regional Engineer
NC DEQ DEMLR— Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville,North Carolina 28115
RE: Tier III Action Plan—Outfall SW003
Industrial Stormwater NPDES Permit No. NCS000548
Marshall Steam Station—Duke Energy Carolinas LLC
Catawba County,North Carolina
Dear Mr. Eplin,
Please accept the attached Tier III Action Plan for Stormwater Outfall SW003 located at
Marshall Steam Station (facility). A notification of Tier 3 status was submitted to NC DEQ
DEMLR for Outfall SW003 on April 1, 2024, as required by Part D, Condition D-7, Table 10 of
Permit No. NCS000548. The tier 3 status was a result to receiving four (4) monitoring
exceedances from laboratory analysis of Mercury over the benchmark of 12 nanograms per liter
(ng/L) within the 5-year permit cycle period. This Action Plan was prepared on behalf of the
facility and outlines the sequence of tier exceedances for the outfall and includes corresponding
tier inspections and supporting analytical data with next-steps for addressing the benchmark
exceedances.
Please contact Scott La Sala, Environmental Field Support Professional at Marshall Steam
Station(828-478-7820, or [e-mail]) if you have any questions regarding
the attached Tier III Action Plan.
Sincerely,
Jeffrey ag
General Manager III
Marshall Steam Station
cc:J. Scott La Sala,Carolinas West Field Support
Don Safrit,Carolinas Permitting&Compliance
UPS 1Z8955X40396562484
www.duke-energy.com

Tier III ACTION PLAN
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS LLC
ISW PERMIT NO: NCS000548
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MARSHALL STEAM STATION
8320 E NC HWY 150
TERRELL, CATAWBA COUNTY, NC

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
ACTION PLAN SUMMARY
This Action Plan has been prepared and submitted on behalf of Duke Energy Carolinas LLC—Marshall
Steam Station (MSS; facility),for Stormwater Outfall SW003 in accordance with Section D-7 of the NC
Industrial Stormwater Permit NCS000548 (effective April 1, 2021), per the Tier Three Response: Four
Benchmark Exceedances Within 5 Years requirement. On March 18, 2024,the facility received
analytical results for stormwater monitoring of Outfall SW003 that reported the fourth (4th) exceedance
of Mercury within the 5 year permit cycle above the permit benchmark of 12 nanograms per liter (ng/L).
In accordance with the D-7 permit requirement,this Action Plan includes:
• A summary of recent benchmark exceedances for Outfall SW003;
• A recent inspection report on current conditions and operations;
• An evaluation of standard operating procedures and good housekeeping procedures;
• Identification of the source of exceedances;
• Specific actions that will be taken to remedy the identified source with a schedule for
completing those actions; and
• A monitoring plan to verify that the Action Plan has addressed the source.
This Action Plan is submitted to the NCDEQ—division of Energy, Mineral and Land Resources (Agency)
on or before April 17, 2024, or within 30 days of receiving results of the fourth benchmark exceedance
for Outfall SW003.
Page 2 of 7

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
CONTENTS
OUTFALL BACKGROUND 4
SUMMARY OF EXCEEDANCES 5
SUMMARY OF RECENT INSPECTIONS 6
EVALUATION OF SOPs AND GOOD HOUSEKEEPING 7
SOURCE IDENTIFICATION 7
SPECIFIC ACTIONS 7
MONITORING PLAN 7
Table 1 —Summary of Analytical Results— Stormwater Outfall SW003
Figure 1 —Outfall SW003 Location
Figure 2—Outfall SW003 Drainage Features
Figure 3— November 2023 Hg Assessment
Figure 4— Proposed BMP Placement
Appendix A— Laboratory Analytical Reports
Appendix B —Sediment& Metals Filter Dike Information
Page 3 of 7

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
OUTFALL BACKGROUND
Industrial Stormwater Outfall SW003 is located along the toe of the facility's single coal ash retention
dam, (coordinates, 35° 36' 11", -80° 57' 39"). The drainage area to this outfall is approximately 4.5
acres and includes 1 acre of impervious roadway and drainage swale found along the crest of the dam
(crest road and swale) and 3.5 acres of gravel driveway/laydown yard and grassed area found along the
toe of the dam. A soil berm located along the edge of Lake Norman serves to direct sheet flow from the
toe area toward the outfall. The location of Outfall SW003 is shown on Figure 1.
The toe of the dam serves as a miscellaneous facility project laydown area as well as an access driveway
to the dam and areas north of the dam. The crest road also serves as access to areas north of the dam.
As designed,the toe area serves as an emergency pathway for hauling production ash to the Industrial
Landfill located north of the referenced area; however, ash hauling activities are generally limited to Ash
Haul Road located southwest of the dam (see Figure 2).
In 2015,the paved crest road and swale were installed at the facility during a dam armoring project
designed to improve dam stability. The installation also included two stormwater drop box drains
located along the crest road and swale with corresponding conveyance pipes that extend to adjacent
outfalls SW002 and SW003.
Additional modifications to the dam toe drainage area were made in 2021 during the installation of the
Groundwater Corrective Action Plan (or GCAP)system. The GCAP remediation system was installed and
commissioned as required per Part 46. of the NC Superior Court Consent Order No. 13 CVS 11032 for the
purpose of attaining NC State 2L groundwater standards. The GCAP installation included placement of a
linear ground-mounted pipe network for the groundwater recovery system. The pipes have been
covered with a linear gravel berm that serves to fix the position and protect the on-grade conveyance
pipes. Stormwater outlet drains were installed below the gravel to facility drainage to the lower grassed
areas of the dam toe.
The facility operates Outfall SW003 under the North Carolina Industrial Stormwater Permit NSC000548.
The most-current permit iteration (received March 29, 2021) required an increased monitoring
frequency for this outfall, or from semi-annual to quarterly monitoring. Additionally, the new permit
required analysis of stormwater from Outfall SW003 for additional metals, including Mercury, Nickel,
Beryllium,Arsenic,Antimony,Thallium, Silver, Copper, Chromium, Zinc, Cadmium, Boron and Selenium.
Further, the permit required continuation of monitoring total suspended solids,total rainfall and pH.
Page 4 of 7

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
SUMMARY OF EXCEEDANCES
The first monitoring event completed under the new permit (on June 7, 2021) reported Mercury (Hg) at
Outfall SW003 at 13.5 ng/L, or slightly above the permit benchmark of 12 ng/L. Analytical results were
received June 22, 2021, and a Tier 1 inspection was completed the same day. Notification for the Tier 1
exceedance was completed on June 30, 2021. See attached Table 1 for a summary of analytical results
for Outfall SW003. Corresponding laboratory analytical reports are provided in Appendix A.
Following a series of periods reported below corresponding permit benchmarks, Outfall SW003 was
reported again with Hg above the benchmark for samples collected on December 14, 2022 (at 20.3
ng/L). The corresponding laboratory report was received on January 10, 2023. A Tier 1 inspection at the
outfall was completed on January 23, 2023. Agency notification of this Tier 1 exceedance was
completed on January 24, 2023.
Samples collected during the following monitoring event (June 19, 2023)were reported with the Hg
concentration slightly above the benchmark (or at 12.8 ng/L). Analytical results were received on July
19, 2023. A Tier II inspection of the outfall was also completed on July 19, 2023. Monitoring frequency
was subsequently increased from quarterly to monthly, as per Section D-8 of the referenced permit.
A period of No-Flow conditions was reported to the Agency between August 2023 and November 2023
due to drought-like conditions during 3rd and 4th quarters of the year at the facility. Analytical results
from the monthly monitoring period sampled on February 27, 2024,were received on March 18, 2024.
The analytical result for Hg analysis was reported at 34 ng/I, signifying the fourth Hg benchmark
exceedance for the 5-year permit period. A Tier Ill inspection was completed on March 19, 2024.
Agency notification was made on April 1, 2024.
Page 5 of 7

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
SUMMARY OF RECENT INSPECTIONS
The Tier 1 inspection completed at Outfall SW003 on June 22, 2021, identified potential sources of the
elevated TSS, Mercury and Copper reported for that monitoring period. Specifically, multiple areas with
trace sediment accumulation were identified in the crest road and swale. Sediment accumulations were
noted adjacent to weighted erosion eels that had been placed and maintained in the crest swale in 2017
as good housekeeping best management practices (BMPs). In response to the Tier 1 exceedance,
additional eels were placed into the swale and cleaning frequency of this sediment from the swale was
increased in July of 2021. Cleaning efforts include use of water truck and vacuum truck to remove
sediments from the swale and associated drain.
The Tier 2 inspection completed July 19, 2023, noted slight sediment accumulation behind the weighted
eels being maintained along the crest road inside the paved swale. Available sources of sediment to
the swale were evaluated. Possible sources assessed included the adjacent train car maintenance track
as well as possible track-out onto the crest road from the intersecting unpaved road to the south. From
the inspection, cleaning activities within the swale were increased to a quarterly frequency.
Additionally, a storm drain filter cover was installed at the drain box and scheduled for maintenance.
In November 2023, Duke conducted an upgradient source assessment within the drainage areas of
SW003. A total of eight samples were collected during a qualified rain event at select-targeted
upgradient locations for analysis of low level Mercury via EPA Method 1631. Results of the assessment
indicated that pooled stormwater in a small area of unpaved gravel south of SW003 appears to produce
slightly elevated Mercury concentrations (above benchmark) in produced stormwater runoff. However,
the source to this elevated Mercury was not identified. The assessment location is shown on Figure 3.
The Tier 3 inspection was completed on March 19, 2024,following receipt of results from the February
27th monitoring event. The inspection continued to evaluate conditions along the upper crest swale and
equipment laydown areas located along the dam toe. In general, housekeeping and BMPs were found
in good order. The area of interest identified from the November 2023 assessment was also observed.
It was discovered that trace sediment accumulations were present and appeared to extend from the
assessed area of interest (Sample 1 on Figure 3), into the downgradient grassed area and along the
length of the earthen berm to the outfall. Additional measures to address this sediment is discussed in
sections below.
Page 6 of 7

Action Plan: Tier III Benchmark Exceedances
Marshall Steam Station—Terrell, Catawba County, NC
EVALUATION OF SOPs AND GOOD HOUSEKEEPING
Effective April 1, 2021, the most-current NCS000548 permit has required quarterly good-housekeeping
inspections. Housekeeping inside the drainage area to Outfall SW003 has been well-maintained.
Additional BMP measures that have been implemented since the effective date are also well-
maintained, currently inspected and cleaned quarterly. In December 2023,the facility replaced the
concreted driveway south of the crest road. During this project, surface drainage along the rail crossing
was routed to containment to further reduce water truck spray and track-out from the haul road onto
the crest road. Quarterly maintenance of the crest road and swale include removal of any accumulated
sediments and cleaning and/or replacement of the drain box filter.
SOURCE IDENTIFICATION
The upgradient assessment performed November 2023 indicated a probable source area exists along
the gravel drive south of the Outfall SW003. To date,the source material in this area has not been
confirmed but it is believed that the trace sediment extending along the earthen berm in the grass area
discovered during the Tier 3 inspection originates from the gravel driveway and may be a contributing
factor to the reported elevated Hg concentrations at Outfall SW003.
SPECIFIC ACTIONS
To address the newly discovered sediment and suspected source of the elevated Hg runoff, the facility
proposes deploying both stormwater sediment dikes and reactive carbon dikes along the grassed area
between SW003 and the driveway to reduce turbidity and metals concentrations overall. Information
pertaining to the proposed dikes are provided in Appendix B.
The next-steps for the action plan shall include an assembly of three sets of dikes that will be placed
(cross-gradient) along the grassed area between the earthen berm along Lake Norman and the gravel
driveway to reduce overall turbidity of runoff in this area as well as reduce heavy metals concentrations.
The proposed locations for these dikes are shown in Figure 4. The facility anticipates deploying these
new BMPs before the end of May 2024.
MONITORING PLAN
Upon installation of the new reactive dike system,the facility will continue monthly stormwater
monitoring until three or more consecutive samples are reported below the Mercury benchmark, or
until no further attainment can be made and a new frequency is established by the Agency. In the
likelihood that all reasonable measures have been taken to address the low level Mercury concentration
at Outfall SW003,the facility may evaluate additional BMPs, if practical, or may seek alleviation on the
monitoring frequency from the Agency.
Page 7 of 7

Tier III Action Plan April 2024
TABLE 1
SUMMARY OF ANALYTICAL RESULTS
STORM WATER OUTFALL SW003
Permit No.NCS000548
MARSHALL STEAM STATION
TERRELL,CATAWBA COUNTY,NORTH CAROLINA
Tier
rainfall pH TSS Lead Mercury Nickel Beryllium Arsenic Antimony Thallium Silver Copper Chromium Zinc Cadmium Boron Selinium
Triggering _
units in. S.U. mg/L ug/L ng/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L mg/L ug/L
BENCHMARK --- 6-9 100 75 12 335 65 340 90 --- 0.3 10 900 0.126 3 --- 56
I I
Sample Date
6/7/2021 Tier 1 0.59 7.8 130 6.25 13.5 2.63 <1 3.76 <1 0.257 <0.3 13.9 7.75 0.059 <1 <0.05 2.20
Q3 2021 Reported No Flow
Q4 2021 Reported No Flow
3/16/2022 0.73 7.7 12 1.2 9.02 1.58 <1 2.58 <1 <0.2 <0.3 2.94 2.04 0.025 <1 <0.05 <1
Q2 2022 Reported No Flow _
9/30/2022 1.95 7.3 3.1 <1 4.66 <1 <1 1.01 <1 <0.2 <0.3 2.34 <1 0.012 <1 <0.05 <1
12/14/2022 Tier 1 0.57 7.3 76 2.84 20.3 5.93 <1 3.69 <1 0.207 <0.3 6.81 5.04 0.065 <1 0.062 6.25
Q1 2023 Reported No Flow
6/19/2023 Tier 2 1.01 7.1 22 1.21 12.8 1.86 <1 2.25 <1 <0.2 <0.3 3.38 1.91 0.027 <1 <0.05 <1
Aug 2023 Reported No Flow
Sept 2023 Reported No Flow
Oct 2023 Reported No Flow
Nov 2023 Reported No Flow
12/17/2023 0.90 7.5 4.6 <1 3.6 <1 <1 <1 <1 <0.2 <0.3 <2 1.74 0.012 <1 <0.05 <1
2/27/2024 Tier 3 0.49 7.4 85 3.71 34 6.82 <1 5.64 <1 0.226 <0.3 9.57 10.1 0.094 <1 <0.05 1.92
notes:
S.U.standard units
mg/L-milligrams per liter
ug/L-micrograms per liter
ng/L-nanograms per liter
---denotes no permit benchmark(report only)
bolded/highlighted-denotes reported concentration at or above permit benchmark
1SL
Duke Energy Carolinas LLC

FIGURES

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Tier III Action Plan
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04 FIGURE 3
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Tier III Action Plan F �, , �5
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Marshall Steam Station
Terrell, Catawba County, NC ` 'A 6 9 ISwoo3
Mercury Screening Samples - (f,r-
Collected November 22,2023 2 9
Location ID Mercury '
ng/L •
Screen Sample 1 29
Screen Sample 2 9.24.:
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Screen Sample 4 10 es- y ; +..
Screen Sample 5 7.7 f.'( • 4
Screen Sample 6 6.2 'Z'L 6,4 - ''
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Tier III Action Plan
Permit NCS000548 .:.,f .
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APPENDIX A:
LABORATORY ANALYTICAL REPORTS

June 7, 2021
Analytical Report

DUKE Analytical Laboratory 1 of 49
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MGO3A2
Phone: [phone] Fax: [phone]
Order Summary Report
Order Number: J21060200
Project Name: MARSHALL-NPDES STORMWATER
EquisTaskCode:
Customer Name(s): Scott LaSala,Tina Woodward, Robery Wylie
Customer Address: Marshall Steam Station
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Lab Contact: Jason Robinson Phone: [phone]
Report Authorized By: Date: 6/22/2021
(Signature)
Jason Robinson
Program Comments:
Per station personnel, SW007 was used for LL Hg duplicate.
Data Flags&Calculations:
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full,without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package,Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub-contracted Laboratory Results, Customer Specific Data Sheets, Reports&
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody(COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina(DENR) Certificate#248, South Carolina
(DHEC) Laboratory ID#99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions: 2of49
Collection
Sample ID Plant/Station Date and Time Collected By Sample Description
2021015474 MARSHALL 07-Jun-21 5:00 PM SW002
2021015475 MARSHALL 07-Jun-21 5:05 PM SW003
2021015476 MARSHALL 07-Jun-21 5:30 PM SW007
2021015477 MARSHALL 07-Jun-21 5:35 PM SW008
2021015478 MARSHALL 07-Jun-21 6:15 PM SW011
2021015479 MARSHALL 07-Jun-21 5:45 PM SW012
2021015480 MARSHALL 07-Jun-21 5:40 PM SW022
2021015481 MARSHALL 07-Jun-21 6:50 PM SW025
2021015482 MARSHALL 07-Jun-21 Duplicate 007
2021015483 MARSHALL 07-Jun-21 FIELD BLANK
2021015485 MARSHALL 07-Jun-21 Trip blank
11 Total Samples

3 of 49
Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals Yes No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. ❑ Yes 0 No
All laboratory QA/QC requirements are acceptable. 0 Yes ❑ No
Report Sections Included:
d❑ Job Summary Report d❑ Sub-contracted Laboratory Results
J❑ Sample Identification ❑ Customer Specific Data Sheets, Reports, & Documentation
O Technical Validation of Data Package ❑ Customer Database Entries
▪ Analytical Laboratory Certificate of Analysis d❑ Chain of Custody
Analytical Laboratory QC Report d❑ Electronic Data Deliverable(EDD)Sent Separately
Reviewed By: Jason Robinson Date: 6/22/2021

Certificate of Laboratory Analysis 4 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW002 Normal Sample#: 2021015474
Collection Date: 06/07/2021 05:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 021060145
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 06/11/2021 10:55 DMFRANC
Zinc(Zn) 0.057 mg/L 0.005 1 EPA 200.7 06/11/2021 10:55 DMFRANC
TOTAL RECOVERABLE METALS BY ICP-MS - Q21060149
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Arsenic(As) 1.33 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Chromium (Cr) 2.54 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Copper(Cu) 3.23 ug/L 2 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Lead(Pb) 1.46 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Nickel(Ni) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Thallium (TI) Low Level <0.2 ug/L 0.2 1 EPA 200.8 06/11/2021 16:22 CWSPEN3
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 35 mg/L 2.5 1 SM2540D 06/11/2021 08:22 PARMSTR

Certificate of Laboratory Analysis 5 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW003 Normal Sample#: 2021015475
Collection Date: 06/07/2021 05:05 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 021060145
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 06/10/2021 12:59 DMFRANC
Zinc(Zn) 0.059 mg/L 0.005 1 EPA 200.7 06/10/2021 12:59 DMFRANC
TOTAL RECOVERABLE METALS BY ICP-MS - Q21060149
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Arsenic(As) 3.76 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Chromium (Cr) 7.75 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Copper(Cu) 13.9 ug/L 2 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Lead(Pb) 6.25 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Nickel(Ni) 2.63 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Selenium (Se) 2.20 ug/L 1 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Thallium (TI) Low Level 0.257 ug/L 0.2 1 EPA 200.8 06/11/2021 16:57 CWSPEN3
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 130 mg/L 3.6 1 SM2540D 06/11/2021 08:22 PARMSTR

Certificate of Laboratory Analysis 6 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW007 Normal Sample#: 2021015476
Collection Date: 06/07/2021 05:30 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
OIL AND GREASE IN WATER-SOLID PHASE EXTRACTION-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
MERCURY IN WATER(AVERAGE) -
Mercury Average 5.22 ng/L 0.5 1 Calculation
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 021060145
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 06/10/2021 13:03 DMFRANC
Zinc(Zn) 0.151 mg/L 0.005 1 EPA 200.7 06/10/2021 13:03 DMFRANC
TOTAL RECOVERABLE METALS BY ICP-MS - Q21060149
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Copper(Cu) 6.48 ug/L 2 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Nickel(Ni) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Thallium (TI) Low Level <0.2 ug/L 0.2 1 EPA 200.8 06/11/2021 17:05 CWSPEN3
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 8.9 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 7 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW008 Normal Sample#: 2021015477
Collection Date: 06/07/2021 05:35 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 7.9 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 8 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW011 Normal Sample#: 2021015478
Collection Date: 06/07/2021 06:15 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
TOTAL RECOVERABLE METALS BY ICP-MS - 021060149
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:13 CWSPEN3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:13 CWSPEN3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 06/11/2021 17:13 CWSPEN3
Zinc(Zn) 36.0 ug/L 5 1 EPA 200.8 06/11/2021 17:13 CWSPEN3
Total Suspended Solids-Low RL 2.5 - 021060201
TSS 7.2 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 9 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW012 Normal Sample#: 2021015479
Collection Date: 06/07/2021 05:45 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 19 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 10 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW022 Normal Sample#: 2021015480
Collection Date: 06/07/2021 05:40 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 7.4 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 11 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: SW025 Normal Sample#: 2021015481
Collection Date: 06/07/2021 06:50 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q21060201
TSS 39 mg/L 2.5 1 SM2540D 06/11/2021 08:23 PARMSTR

Certificate of Laboratory Analysis 12 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: Duplicate 007 Duplicate Sample#: 2021015482
Collection Date: 06/07/2021 Loc code: MSS FD Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 13 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: FIELD BLANK Field Blank Sample#: 2021015483
Collection Date: 06/07/2021 Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 14 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Site: Trip blank Trip Blank Sample#: 2021015485
Collection Date: 06/07/2021 Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 15of49
This report shall not be reproduced, except in full.
Order# J21060200
Level II QC Summary
Q21060145 ICPTRM TOTAL RECOVERABLE METALS BY ICP
Blank #1
Parameter Measured Final Units: Di RDL Relative Concentration Qualifier
Boron(B) 0.00314 0.00314 mg/L 1 0.05 <1/2 RDL
Zinc(Zn) 0.000029 0.000029 mg/L 1 0.005 <1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Boron(B) 5 5 mg/L 1 5 100 85 115 -
Zinc(Zn) 4.96 4.96 mg/L 1 5 99.1 85 115 -
MS #1 Parent Sample: 121050110 -- 2021012089
Parameter Measured Final Units: Dil Soike %Recovery LCL UCL Qualifier
Boron(B) 5.33 5.33 mg/L 1 5 99.8 70 130 -
Zinc(Zn) 4.88 4.88 mg/L 1 5 97.6 70 130 -
MSD #1 Parent Sample: 121050110 -- 2021012089
Parameter Measured Final Units: Di Spike %Recovery LCL UCL RPD Qualifier
Boron(B) 5.34 5.34 mg/L 1 5 100 70 130 0.15 -
Zinc(Zn) 4.89 4.89 mg/L 1 5 97.8 70 130 0.143 -

Certificate of Laboratory Analysis 16 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Level II QC Summary
Q21060149 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Antimony(Sb) -0.045 -0.045 ug/L 1 1 <1/2 RDL
Arsenic(As) 0.017 0.017 ug/L 1 1 <1/2 RDL
Beryllium (Be) -0.007 -0.007 ug/L 1 1 <1/2 RDL
Cadmium (Cd) -0.001 -0.001 ug/L 1 1 <1/2 RDL
Chromium (Cr) 0.053 0.053 ug/L 1 1 <1/2 RDL
Copper(Cu) 0.042 0.042 ug/L 1 2 <1/2 RDL
Lead(Pb) 0.002 0.002 ug/L 1 1 <1/2 RDL
Nickel(Ni) -3.96 -3.96 ug/L 1 1 <1/2 RDL
Selenium (Se) -0.022 -0.022 ug/L 1 1 <1/2 RDL
Silver(Ag) Low Level -0.001 -0.001 ug/L 1 0.3 <1/2 RDL
Thallium (TI) Low Level -0.004 -0.004 ug/L 1 0.2 <1/2 RDL
Zinc(Zn) 0.724 0.724 ug/L 1 5 <1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Antimony(Sb) 48.7 48.7 ug/L 1 50 97.5 85 115 -
Arsenic(As) 48.8 48.8 ug/L 1 50 97.6 85 115 -
Beryllium (Be) 47.2 47.2 ug/L 1 50 94.4 85 115 -
Cadmium (Cd) 47.8 47.8 ug/L 1 50 95.7 85 115 -
Chromium (Cr) 48.2 48.2 ug/L 1 50 96.5 85 115 Copper(Cu) 49 49 ug/L 1 50 98 85 115 -
Lead(Pb) 48.4 48.4 ug/L 1 50 96.9 85 115 -
Nickel(Ni) 44.9 44.9 ug/L 1 50 89.8 85 115 -
Selenium (Se) 47.6 47.6 ug/L 1 50 95.3 85 115 -
Silver(Ag) Low Level 48.1 48.1 ug/L 1 50 96.2 85 115 -
Thallium (TI) Low Level 46.9 46.9 ug/L 1 50 93.8 85 115 -
Zinc(Zn) 47.9 47.9 ug/L 1 50 95.9 85 115 -
MS #1 Parent Sample: J21060200 -- 2021015474
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Antimony(Sb) 47.4 47.4 ug/L 1 50 94.6 70 130 -
Arsenic(As) 49 49 ug/L 1 50 95.4 70 130 -
Beryllium (Be) 48.3 48.3 ug/L 1 50 96.5 70 130 -
Cadmium (Cd) 48.6 48.6 ug/L 1 50 97.2 70 130 -
Chromium (Cr) 51.9 51.9 ug/L 1 50 98.8 70 130 -
Copper(Cu) 52.6 52.6 ug/L 1 50 98.8 70 130 -
Lead(Pb) 50 50 ug/L 1 50 97.1 70 130 -
Nickel(Ni) 46.2 46.2 ug/L 1 50 92.4 70 130 -
Selenium (Se) 47.5 47.5 ug/L 1 50 94.3 70 130 -
Silver(Ag) Low Level 48.6 48.6 ug/L 1 50 97.2 70 130 -

Certificate of Laboratory Analysis 17 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Level II QC Summary
Q21060149 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS #1 Parent Sample: J21060200 -- 2021015474
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Thallium (TI) Low Level 46.5 46.5 ug/L 1 50 92.7 70 130 -
Zinc(Zn) 102 102 ug/L 1 50 97.9 70 130 -
MSD #1 Parent Sample: J21060200 -- 2021015474
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL RPD Qualifier
Antimony(Sb) 47.5 47.5 ug/L 1 50 94.7 70 130 0.0528 -
Arsenic(As) 49.1 49.1 ug/L 1 50 95.6 70 130 0.199 -
Beryllium (Be) 46.3 46.3 ug/L 1 50 92.5 70 130 4.28 -
Cadmium (Cd) 48.6 48.6 ug/L 1 50 97.1 70 130 0.0885 -
Chromium (Cr) 52 52 ug/L 1 50 99 70 130 0.216 -
Copper(Cu) 52.1 52.1 ug/L 1 50 97.7 70 130 1.05 -
Lead(Pb) 50.9 50.9 ug/L 1 50 98.8 70 130 1.74 -
Nickel(Ni) 46.3 46.3 ug/L 1 50 92.6 70 130 0.205 -
Selenium (Se) 47 47 ug/L 1 50 93.2 70 130 1.17 -
Silver(Ag) Low Level 49.2 49.2 ug/L 1 50 98.3 70 130 1.12 -
Thallium (TI) Low Level 47.5 47.5 ug/L 1 50 94.8 70 130 2.28 -
Zinc(Zn) 103 103 ug/L 1 50 100 70 130 2.06 -

Certificate of Laboratory Analysis 18 of 49
This report shall not be reproduced, except in full.
Order# J21060200
Level II QC Summary
Q21060201 TSS_LL Total Suspended Solids-Low RL 2.5
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
TSS 0 mg/L 1 2.5 <1/2 RDL

aceAnalytical®
Pace Analytical Services,LLC
9800 Kli§ce. Suite 100
Huntersville,NC 28078
www.pacelabs.eom [phone]
June 11, 2021
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg. 7405 MG30A2
Huntersville, NC 28078
RE: Project: J21060200
Pace Project No.: 92543036
Dear Program Manager:
Enclosed are the analytical results for sample(s)received by the laboratory on June 08, 2021. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual,where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services-Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Kevin Herring
[e-mail]
1(704)875-9092
HORIZON Database Administrator
Enclosures
f.YP
'4` -,, = REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 1 of 12
e. .

Pace Analytical Services,LLC
aceAnalytical® 9800 lf96c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
CERTIFICATIONS
Project: J21060200
Pace Project No.: 92543036
Pace Analytical Services Charlotte
9800 Kincey Ave.Ste 100, Huntersville, NC 28078 South Carolina Certification#:99006001
Louisiana/NELAP Certification#LA170028 Florida/NELAP Certification#: E87627
North Carolina Drinking Water Certification#:37706 Kentucky UST Certification#:84
North Carolina Field Services Certification#:5342 Virginia/VELAP Certification#:460221
North Carolina Wastewater Certification#: 12
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 2 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 199,c8fhe. Suite 100
Henteruntersville,NC 28078078
www.pacelabs.com [phone]
SAMPLE SUMMARY
Project: J21060200
Pace Project No.: 92543036
Lab ID Sample ID Matrix Date Collected Date Received
92543036001 2021015476 Water 06/07/21 17:30 06/08/21 15:10
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 3 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf92c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
SAMPLE ANALYTE COUNT
Project: J21060200
Pace Project No.: 92543036
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92543036001 2021015476 EPA 1664B CJM 1 PASI-C
PASI-C=Pace Analytical Services-Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 4 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf9gc rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
PROJECT NARRATIVE
Project: J21060200
Pace Project No.: 92543036
Method: EPA 1664B
Description: 1664 SGT-HEM,TPH
Client: Duke Energy
Date: June 11,2021
General Information:
1 sample was analyzed for EPA 1664B by Pace Analytical Services Charlotte. All samples were received in acceptable condition with
any exceptions noted below or on the chain-of custody and/or the sample condition upon receipt form(SCUR)attached at the end of
this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations(including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank,where applicable,with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences(RPDs)were within acceptance criteria with any exceptions noted below.
Duplicate Sample:
All duplicate sample results were within method acceptance criteria with any exceptions noted below.
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 5 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800194c8fhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
ANALYTICAL RESULTS
Project: J21060200
Pace Project No.: 92543036
Sample: 2021015476 Lab ID: 92543036001 Collected: 06/07/21 17:30 Received: 06/08/21 15:10 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM,TPH Analytical Method: EPA 1664E
Pace Analytical Services-Charlotte
Total Petroleum Hydrocarbons ND mg/L 4.9 1 06/11/21 15:27
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:06/11/2021 06:17 PM without the written consent of Pace Analytical Services,LLC. Page 6 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf9gc rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
QUALITY CONTROL DATA
Project: J21060200
Pace Project No.: 92543036
QC Batch: 626598 Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E Analysis Description: 1664 SGT-HEM,TPH
Laboratory: Pace Analytical Services-Charlotte
Associated Lab Samples: 92543036001
METHOD BLANK: 3294616 Matrix: Water
Associated Lab Samples: 92543036001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Petroleum Hydrocarbons mg/L ND 5.0 06/11/21 15:27
LABORATORY CONTROL SAMPLE: 3294617
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Petroleum Hydrocarbons mg/L 20 17.4 87 64-132
MATRIX SPIKE SAMPLE: 3294618
92543026001 Spike MS MS %Rec
Parameter Units Result Conc. Result %Rec Limits Qualifiers
Total Petroleum Hydrocarbons mg/L ND 20.5 23.5 112 64-132
SAMPLE DUPLICATE: 3294619
92542710003 Dup Max
Parameter Units Result Result RPD RPD Qualifiers
Total Petroleum Hydrocarbons mg/L ND ND 30
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:06/11/2021 06:17 PM without the written consent of Pace Analytical Services,LLC. Page 7 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf96c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
QUALIFIERS
Project: J21060200
Pace Project No.: 92543036
DEFINITIONS
DF-Dilution Factor,if reported,represents the factor applied to the reported data due to dilution of the sample aliquot.
ND-Not Detected at or above adjusted reporting limit.
TNTC-Too Numerous To Count
J-Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL-Practical Quantitation Limit.
RL-Reporting Limit-The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S-Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270.The result for each analyte is
a combined concentration.
Consistent with EPA guidelines,unrounded data are displayed and have been used to calculate%recovery and RPD values.
LCS(D)-Laboratory Control Sample(Duplicate)
MS(D)-Matrix Spike(Duplicate)
DUP-Sample Duplicate
RPD-Relative Percent Difference
NC-Not Calculable.
SG-Silica Gel-Clean-Up
U-Indicates the compound was analyzed for,but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited.Contact your Pace PM for the current list of accredited analytes.
TNI-The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:06/11/2021 06:17 PM without the written consent of Pace Analytical Services,LLC. Page 8 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 Ifs?c r e. Suite100
Huntersville,NC 28078078
www.pacelabs.com [phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: J21060200
Pace Project No.: 92543036
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92543036001 2021015476 EPA 1664B 626598
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:06/11/2021 06:17 PM without the written consent of Pace Analytical Services,LLC. Page 9 of 12

Document Name: Document Revised:uctooer as,tutu
Sample Condition Upon Receipt(SCUR) Page 1 of 2
— QeAnalytical Document No.: Issuing Authority: 28 of 49
F-CAR-CS-033-Rev.07 Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville ❑ Eden[ 1 Greenwood ❑ Huntersvill RaleighE Mechanicsville❑ Atlanta❑ Kernersville❑
•
Sample Condition Client Nam wo# : 92543036
Upon Receipt i M C fc,Y1 7 Project+#:
Courier: �Pd Et Ili IPS Eli ISPS ilflipnt 1111111111111 liii
III
❑Commercial Ece ❑Other: \�, 92543036
Custody Seal Present? []Yes �o Seals Intact? Desf�No 1 r
Date/Initials•Aerson•Examining-Gontent 3 l''
Packing Material: ❑Bubble Wrap Bubble Bags ❑None ❑ Other Biological Tissue Frozen?
❑Ye-s- ❑No 'S11JA
Thermometer: "Q-`et ❑Blue ❑None
—ail Gun ID: 92T064 Type of Ice:
f' .c ) Correction Factor:
L t " Add/Subtract(CC) Temp should be above freezing to 6°C
Cooler Temp: O 1
❑Samples out of temp criteria.Samples on ice,cooling process
Cooler Temp Corrected('C): r1�1 has begun
USDA Regulated Soil'(-cl*N/A,water sample)
Dld samples originate in a quarantine zone within the United States:CA,NY,or SC(check maps)? Did samples originate from a foreign source(internationally,
❑Yes .jNo including Hawaii and Puerto Rico)?Eyes '_No
I Comments/Discrepancy:
i Chain of Custody Present? ....N.-Yes ❑No ON/A 1. -
Samples Arrived within Hold Time? Yes ❑No ON/A 2.
Short Hold Time Analysis(<72 hr.)? Dyes jallo ON/A 3.
Rush Turn Around Time Requested? Eyes 1eio ON/A 4.
Sufficient Volume? 1SkYes ❑No ON/A 5.
Correct Containers Used? 'Eyes ❑No ❑N/A 6.
-Pace Containers Used? Yes ❑No ON/A
Containers Intact? ''es ❑No ON/A 7.
uissolved analysis:Samples Field Filtered? —- ❑yes LING--�ts14- ---8-
Sample Labels Match COC? yes ❑No ON/A 9.
•
-Includes Date/Time/ID/Analysis Matrix: w I
Headspace in VOA Vials(>5-6mm)? Eyes 'Spa 1/4S:1N/A 10.
Trip Blank Present? Over j3No BN/A 11.
Trip Blank Custody Seals Present? Eyes QNo QN/A
Field Data Required? Eyes ❑No
COMMENTS/SAMPLE DISCREPANCY
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: '\<\ Date:
til
Project Manager SRF Review: 1 `& Date`: 6 t
Page 10 of 12

Document Name: vu�ui,
Sample Condition Upon Receipt(SCUR)
/
Page 2 of 2
Issuing Authority'
Pace Carolinas Quality Office 29 of 49
i ace Anal !Ca Document
F-CAR-CS-033-Rev.07
S-03Rev
*Check mark top half of box if pH and/or dechlorination is Project t4
verified and within the acceptance range for preservation
samples.
Exceptions:VOA,Coliform,TOC,Oil and Grease,DRO/8015(water)DOC,LLHg
**B.o_ttom-half_Qf-b_ox_is_to_list_number_of-bolt es-
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Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative lot k
p adjusted added
Note. Whenever there is a discrepancy affecting North Carolina compliance samples,a copy of this form will be sent to the North Carolina DEHNR Certification Office(i.e.
Out of hold,incorrect preservative,out of temp,incorrect containers.
Page 11 of 12

30 of 49
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31 of 49
aceAnalytical
Report of Analysis
Duke Energy
13339 Hagers Ferry Rd
Bldg 7405
Huntersville, NC 28078
Attention: Jason Robinson
Project Name: Marshall Quarterly Stormwater
Project Number: J21060200
Lot Number:WF14046
Date Completed:06/17/2021
06/17/2021 6:20 PM
Approved and released by:
Project Manager II: Cathy S. Dover
ACCREDITEDiho
TESTING uBORATORS
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety,without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC(formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
Tel: [phone] Fax: [phone] www.pacelabs.com
Page 1 of 18

32 of 49
PACE ANALYTICAL SERVICES, LLC
SC DHEC No:32010001 NELAC No: E87653 NC DENR No:329 NC Field Parameters No:5639
Case Narrative
Duke Energy
Lot Number: WF14046
This Report of Analysis contains the analytical result(s)for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace")
Laboratory Quality Manual, standard operating procedures (SOPs), and Pace policies. Any exceptions to
the TNI standards, the Laboratory Quality Manual, SOPs or policies are qualified on the results page or
discussed below.
If you have any questions regarding this report please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services,LLC(formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172(803)791-9700 Fax[phone] www.pacelabs.com
Page 2 of 18

PACE ANALYTICAL SERVICES, LLC
Sample Summary
Duke Energy
Lot Number: WF14046
Project Name: Marshall Quarterly Stormwater
Project Number: J21060200
Sample Number Sample ID Matrix Date Sampled Date Received
001 2021015474 Aqueous 06/07/20211700 06/09/2021
002 2021015475 Aqueous 06/07/20211705 06/09/2021
003 2021015476 Aqueous 06/07/20211730 06/09/2021
004 2021015482 Aqueous 06/07/2021 06/09/2021
005 2021015483 Aqueous 06/07/2021 06/09/2021
006 2021015485 Aqueous 06/07/2021 06/09/2021
(6 samples)
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 3 of 18

PACE ANALYTICAL SERVICES, LLC
Detection Summary
Duke Energy
Lot Number: WF14046
Project Name: Marshall Quarterly Stormwater
Project Number: J21060200
Sample Sample ID Matrix Parameter Method Result Q Units Page
001 2021015474 Aqueous Mercury(CVAFS) 1631E 12.1 ng/L 5
002 2021015475 Aqueous Mercury(CVAFS) 1631E 13.5 ng/L 6
003 2021015476 Aqueous Mercury(CVAFS) 1631E 5.20 ng/L 7
004 2021015482 Aqueous Mercury(CVAFS) 1631E 5.24 ng/L 8
(4 detections)
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 4 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-001
Description:2021015474 Matrix:Aqueous
Date Sampled:06/07/2021 1700 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0834 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 12.1 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 5 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-002
Description:2021015475 Matrix:Aqueous
Date Sampled:06/07/2021 1705 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0840 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 13.5 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 6 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-003
Description:2021015476 Matrix:Aqueous
Date Sampled:06/07/2021 1730 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0845 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 5.20 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 7 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-004
Description:2021015482 Matrix:Aqueous
Date Sampled:06/07/2021 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0902 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 5.24 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 8 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-005
Description:2021015483 Matrix:Aqueous
Date Sampled:06/07/2021 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0907 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 9 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:WF14046-006
Description:2021015485 Matrix:Aqueous
Date Sampled:06/07/2021 Project Name:Marshall Quarterly
Date Received:06/09/2021 Project Number:J21060200
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 06/16/2021 0913 JAB2 06/15/2021 0544 95488
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 10 of 18

QC Summary
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:WF14046
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 11 of 18

Mercury (CVAFS) - MB
Sample ID: W095488-001 Matrix: Aqueous
Batch:95488 Prep Method:
Analytical Method: 1631E Prep Date: 06/15/2021 0544
Parameter Result Q Dil LOQ Units Analysis Date
Mercury(CVAFS) ND 1 0.500 ng/L 06/16/2021 0634
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:WF14046
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 12 of 18

Mercury (CVAFS) - LCS
Sample ID: W095488-002 Matrix: Aqueous
Batch:95488 Prep Method:
Analytical Method: 1631E Prep Date: 06/15/2021 0544
Spike
Amount Result %Rec
Parameter (ng/L) (ng/L) Q Dil % Rec Limit Analysis Date
Mercury(CVAFS) 5.00 5.02 1 100 75-125 06/16/2021 0645
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:WF14046
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 13 of 18

Mercury (CVAFS) - MS
Sample ID: WF14046-003MS Matrix: Aqueous
Batch:95488 Prep Method:
Analytical Method: 1631E Prep Date: 06/15/2021 0544
Sample Spike
Amount Amount Result %Rec
Parameter (ng/L) (ng/L) (ng/L) Q Dil % Rec Limit Analysis Date
Mercury(CVAFS) 5.20 5.00 9.79 1 92 71-125 06/16/2021 0851
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:WF14046
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 14 of 18

Mercury (CVAFS) - MSD
Sample ID: WF14046-003MD Matrix: Aqueous
Batch:95488 Prep Method:
Analytical Method: 1631E Prep Date: 06/15/2021 0544
Sample Spike
Amount Amount Result %Rec %RPD
Parameter (ng/L) (ng/L) (ng/L) Q Di! %Rec %RPD Limit Limit Analysis Date
Mercury(CVAFS) 5.20 5.00 9.91 1 94 1.2 71-125 24 06/16/2021 0856
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:WF14046
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 15 of 18

Chain of Custody
and
Miscellaneous Documents
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 16 of 18

PACE ANALYTICAL SERVICES, LLC
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106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 17 of 18

PACE ANALYTICAL SERVICES, LLC
Samples Receipt Checklist(SRC)(N1E00180.15) Revised:9/29/2020
aceMalyAcd Issuing Authority:Pace ENV WCOi Page 1 of 1
Sample Receipt Checklist (SRC)
Client: DUKE CoolcrJu ^red hyidatn: i.cu /0Sil4J1t12t unt*: WFl4046
E
Mean of rect:int: 0 Pace 1'Clicnt tI'S illFedEx Other:
Yes / No 1. Were custody seals present on the cooler?
Yes _No ` INA 2.lfcustody seals wers present,w.v-rc tie,. intact are unbroken? ,
IpH Strip 1D: NA Chlorine Strip ID:_ ' Tested by:NA
'Original temperature upon receipt/Derived(Convened)temperature upon receipt %So:id Snap-Cup 1D: NA +
16.9 /t(.9 vc NA /NA oc NA /NA cc NA /N A or! ,
Method:[]Temperature Blank &I gaiccst Bolles iR Gun 1D: s Ilt Gun Correction Factor. 0 °C
Method of coolant: ❑ Wet ice 0 Ice Packs [Ti D Ter 0 Norc
©Ycs No L]rtq 3. if temperature of any cooler exceed. d 6.0°C,was Project Manegv Notified?
PM was Notified by:phone nai face-to-face(circle one).
El Yes ❑No DNA 4. Is the commercial couritn-'s packing slip attached to this form?
0 Yes LINu 5. Were proper custody procedures(reliequished/rcueivnif)followed?
,1 Yes ❑No 6. Were samplo 1Ds:fisted on the COC?
!�J Yes ❑No 7. Were sample IDs listed on al!sample containers?
[]✓ Yes ❑Ne 8. Was collection date&time listed on the COC?
0 Yes Li No 9. Was collection date&time listed on ail sample containers?
•El Yes,,❑No 10.Did all container label information(ID,date,time)agree with the COC?
F4 Yes ❑t\0 11.Were tests to be perfcu•rrted listed on the COC?
0 Ycs ON()
12.Dal all samples arrive hi the proper containers for each test a-rdior in good condition
(unbroken,Iidr on,etc,)? _
' S cs Li No 13. Was adequate sample volume available?
Yes ❑No Id. Were ail samples received within!n the holding titre or 48 hours,whichever comes first?
�]Yes U No I5. Were any samples containers missingiexoess(virile one)samples No:listed on COC?
Yes []Na DNA 16.For VOA and RSK-175 samples,were bubbles present>"pen-size"(Y+"or6nun in diameter)
in any of the VOA vials?
Yes LJ No NA 17.Were all DROimetals/nutricnt samples received at a pH of<2?
[1 Ycs LINo f�NA 18. Were a:l inide samples received ate pH>12 and sulfide samples received at a pH>9?
I9. Were a applicable NHeTKNicyanidelpheno:62 3(<:O.Srig/L)samples tree of❑ 4'_s El No QNA •
residual chlorine?
Yes20, Were elient remarks/retatests(i.e.rotluested dilutions,NlS/it/1SD designatioi rs, etc...)
❑Ntr [�NA con'ect:y transcribed from the COC into the con-meet section in LIMS?
Yes N0 21.Was the,uote number listed ant the container label?If ves,Quote 9
Sample Preservation Must be ccmplctcd for any sample(s)incorrectly presurvetl or wiry heudspace.)
Sample(s) PA were received incorrectly preserved and were adjusted accordingly
in sample receiving with NA mL of circle one:H2SO4,F1NO3,WI,NaOH usir:g SR 9 NA
'Cime of preservation N,1 . if more than one preservative is needed,please note in the Comments below.
Slenple(s) fcA were received wilt bubbles>6 mm in diameter.
Samples(s) N" _ were received with'RC>0.5 mg/L(if//19 is no}and were
aL justed accordingly In sample reeeiv'.ng with eodium thiesult$te(Na_S,O.c)with Shealy ID: NA
Sit barcode rebels applied by. MR — _ _ Date: 17*.114J2 2t
Comments: t
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
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Page 18 of 18

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December 14, 2022
Analytical Report

DUKE Analytical Laboratory 1 of 49
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MGO3A2
Phone: [phone] Fax: [phone]
Order Summary Report
Order Number: J22120333
Project Name: MARSHALL-NPDES STORMWATER
EquisTaskCode:
Customer Name(s): Scott LaSala,Tina Woodward
Customer Address: Marshall Steam Station
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Lab Contact: Jason Robinson Phone: [phone]
Report Authorized By: / J Date: 1/10/2023
(Signature)
Jason Robinson
Program Comments:
Please contact the Program Manager(Jason Robinson)with any questions regarding this report.
Data Flags&Calculations:
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full,without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package,Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub-contracted Laboratory Results, Customer Specific Data Sheets, Reports&
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody(COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina(DENR) Certificate#248, South Carolina
(DHEC) Laboratory ID#99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions: 2of49
Collection
Sample ID Plant/Station Date and Time Collected By Sample Description
2022031898 MARSHALL 14-Dec-22 5:00 PM Scott LaSala SW002
2022031899 MARSHALL 14-Dec-22 5:05 PM Scott LaSala SW003
2022031900 MARSHALL 14-Dec-22 6:15 PM Scott LaSala SW007
2022031901 MARSHALL 14-Dec-22 4:35 PM Scott LaSala SW008
2022031902 MARSHALL 14-Dec-22 5:30 PM Scott LaSala SW011
2022031903 MARSHALL 14-Dec-22 6:00 PM Scott LaSala SW012
2022031904 MARSHALL 14-Dec-22 4:30 PM Scott LaSala SW022
2022031905 MARSHALL 14-Dec-22 6:45 PM Scott LaSala SW025
2022031906 MARSHALL 14-Dec-22 6:55 PM Scott LaSala SW026
2022031907 MARSHALL 14-Dec-22 6:15 PM Scott LaSala Hg Dup
2022031908 MARSHALL 14-Dec-22 6:15 PM Scott LaSala Hg Field Blank
11 Total Samples

3 of 49
Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals Yes No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. ❑ Yes 0 No
All laboratory QA/QC requirements are acceptable. 0 Yes ❑ No
Report Sections Included:
d❑ Job Summary Report d❑ Sub-contracted Laboratory Results
J❑ Sample Identification ❑ Customer Specific Data Sheets, Reports, & Documentation
O Technical Validation of Data Package ❑ Customer Database Entries
▪ Analytical Laboratory Certificate of Analysis d❑ Chain of Custody
Analytical Laboratory QC Report d❑ Electronic Data Deliverable(EDD)Sent Separately
Reviewed By: Jason Robinson Date: 1/10/2023

Certificate of Laboratory Analysis 4 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW002 Sample#: 2022031898
Collection Date: 1 2/1 4/2022 05:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 022120296
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 12/16/2022 16:29 CELLIO6
Zinc(Zn) 0.019 mg/L 0.005 1 EPA 200.7 12/16/2022 16:29 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - 022120301
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Copper(Cu) <2 ug/L 2 1 EPA 200.8 12/20/2022 13:35 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Nickel(Ni) 3.21 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Selenium (Se) 9.65 ug/L 1 1 EPA 200.8 12/20/2022 13:35 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 12/20/2022 13:35 MHALL3
Thallium (TI) Low Level <0.2 ug/L 0.2 1 EPA 200.8 12/20/2022 13:35 MHALL3
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 3.5 mg/L 2.5 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 5 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW003 Sample#: 2022031899
Collection Date: 1 2/1 4/2022 05:05 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 022120296
Boron(B) 0.062 mg/L 0.05 1 EPA 200.7 12/16/2022 16:48 CELLIO6
Zinc(Zn) 0.065 mg/L 0.005 1 EPA 200.7 12/16/2022 16:48 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - 022120301
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Arsenic(As) 3.69 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Chromium (Cr) 5.04 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Copper(Cu) 6.81 ug/L 2 1 EPA 200.8 12/20/2022 13:43 MHALL3
Lead(Pb) 2.84 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Nickel(Ni) 5.93 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Selenium (Se) 6.25 ug/L 1 1 EPA 200.8 12/20/2022 13:43 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 12/20/2022 13:43 MHALL3
Thallium (TI) Low Level 0.207 ug/L 0.2 1 EPA 200.8 12/20/2022 13:43 MHALL3
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 76 mg/L 6.8 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 6 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW007 Sample#: 2022031900
Collection Date: 1 2/1 4/2022 06:15 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
OIL AND GREASE IN WATER-SOLID PHASE EXTRACTION-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
MERCURY IN WATER(AVERAGE) -
Mercury Average 3.83 ng/L 0.5 1 Calculation
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 022120296
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 12/16/2022 16:53 CELLIO6
Zinc(Zn) 0.066 mg/L 0.005 1 EPA 200.7 12/16/2022 16:53 CELLI06
TOTAL RECOVERABLE METALS BY ICP-MS - Q22120301
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Copper(Cu) <2 ug/L 2 1 EPA 200.8 12/20/2022 12:43 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Nickel(Ni) 1.11 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 12/20/2022 12:43 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 12/20/2022 12:43 MHALL3
Thallium (TI) Low Level <0.2 ug/L 0.2 1 EPA 200.8 12/20/2022 12:43 MHALL3
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 11 mg/L 2.5 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 7 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW008 Sample#: 2022031901
Collection Date: 1 2/1 4/2022 04:35 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 40 mg/L 4.3 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 8 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW011 Sample#: 2022031902
Collection Date: 1 2/1 4/2022 05:30 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
TOTAL RECOVERABLE METALS BY ICP-MS - Q22120301
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:51 MHALL3
Chromium (Cr) 1.22 ug/L 1 1 EPA 200.8 12/20/2022 13:51 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 12/20/2022 13:51 MHALL3
Zinc(Zn) 24.8 ug/L 5 1 EPA 200.8 12/20/2022 13:51 MHALL3
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 18 mg/L 4.6 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 9 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW012 Sample#: 2022031903
Collection Date: 1 2/1 4/2022 06:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 28 mg/L 3.8 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 10 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW022 Sample#: 2022031904
Collection Date: 1 2/1 4/2022 04:30 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 23 mg/L 3.6 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 11 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW025 Sample#: 2022031905
Collection Date: 1 2/1 4/2022 06:45 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 4.1 mg/L 2.5 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 12 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: SW026 Sample#: 2022031906
Collection Date: 1 2/1 4/2022 06:55 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - 022120296
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 12/16/2022 16:58 CELLIO6
Zinc(Zn) <0.005 mg/L 0.005 1 EPA 200.7 12/16/2022 16:58 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - 022120301
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Chromium (Cr) 1.41 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Copper(Cu) 2.77 ug/L 2 1 EPA 200.8 12/20/2022 14:00 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Nickel(Ni) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 12/20/2022 14:00 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 12/20/2022 14:00 MHALL3
Thallium (TI) Low Level <0.2 ug/L 0.2 1 EPA 200.8 12/20/2022 14:00 MHALL3
Total Suspended Solids-Low RL 2.5 - Q22120326
TSS 5.0 mg/L 2.5 1 SM2540D 12/20/2022 07:34 EBATIAN

Certificate of Laboratory Analysis 13 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: Hg Dup Sample#: 2022031907
Collection Date: 1 2/1 4/2022 06:15 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 14 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Site: Hg Field Blank Sample#: 2022031908
Collection Date: 1 2/1 4/2022 06:15 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 15of49
This report shall not be reproduced, except in full.
Order# J22120333
Level II QC Summary
Q22120296 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank #1
Parameter Measured Final Units: Di RDL Relative Concentration Qualifier
Boron(B) 0.00189 0.00189 mg/L 1 0.05 <1/2 RDL
Zinc(Zn) -0.000457 -0.000457 mg/L 1 0.005 <1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Boron(B) 4.92 4.92 mg/L 1 5 98.3 85 115 -
Zinc(Zn) 4.85 4.85 mg/L 1 5 97 85 115 -
MS #1 Parent Sample: 122120333 -- 2022031898
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Boron(B) 4.92 4.92 mg/L 1 5 97.9 70 130 -
Zinc(Zn) 4.68 4.68 mg/L 1 5 93.3 70 130 -
MSD #1 Parent Sample: 122120333 -- 2022031898
Parameter Measured Final Units: Di Spike %Recovery LCL UCL RPD Qualifier
Boron(B) 5.13 5.13 mg/L 1 5 102 70 130 4.08 -
Zinc(Zn) 4.83 4.83 mg/L 1 5 96.3 70 130 3.09 -

Certificate of Laboratory Analysis 16 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Level II QC Summary
Q22120301 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Antimony(Sb) 0.011 0.011 ug/L 1 1 <1/2 RDL
Arsenic(As) 0.03 0.03 ug/L 1 1 <1/2 RDL
Beryllium (Be) -0.011 -0.011 ug/L 1 1 <1/2 RDL
Cadmium (Cd) 0.027 0.027 ug/L 1 1 <1/2 RDL
Chromium (Cr) 0.057 0.057 ug/L 1 1 <1/2 RDL
Copper(Cu) 0.019 0.019 ug/L 1 2 <1/2 RDL
Lead(Pb) 0.015 0.015 ug/L 1 1 <1/2 RDL
Nickel(Ni) 0.017 0.017 ug/L 1 1 <1/2 RDL
Selenium (Se) 0.027 0.027 ug/L 1 1 <1/2 RDL
Silver(Ag) Low Level -0.002 -0.002 ug/L 1 0.3 <1/2 RDL
Thallium (TI) Low Level 0.002 0.002 ug/L 1 0.2 <1/2 RDL
Zinc(Zn) 0.117 0.117 ug/L 1 5 <1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Antimony(Sb) 52 52 ug/L 1 50 104 85 115 -
Arsenic(As) 52.3 52.3 ug/L 1 50 105 85 115 -
Beryllium (Be) 51.5 51.5 ug/L 1 50 103 85 115 -
Cadmium (Cd) 52.2 52.2 ug/L 1 50 104 85 115 -
Chromium (Cr) 51.8 51.8 ug/L 1 50 104 85 115 Copper(Cu) 52 52 ug/L 1 50 104 85 115 -
Lead(Pb) 52.8 52.8 ug/L 1 50 106 85 115 -
Nickel(Ni) 52 52 ug/L 1 50 104 85 115 -
Selenium (Se) 50.8 50.8 ug/L 1 50 102 85 115 -
Silver(Ag) Low Level 53.2 53.2 ug/L 1 50 106 85 115 -
Thallium (TI) Low Level 50.3 50.3 ug/L 1 50 101 85 115 -
Zinc(Zn) 52.3 52.3 ug/L 1 50 105 85 115 -
MS #1 Parent Sample: J22120333 -- 2022031900
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Antimony(Sb) 60.5 60.5 ug/L 1 50 121 70 130 -
Arsenic(As) 59.9 59.9 ug/L 1 50 119 70 130 -
Beryllium (Be) 43.4 43.4 ug/L 1 50 86.5 70 130 -
Cadmium (Cd) 60.1 60.1 ug/L 1 50 120 70 130 -
Chromium (Cr) 62.7 62.7 ug/L 1 50 123 70 130 Copper(Cu) 61.6 61.6 ug/L 1 50 119 70 130 -
Lead(Pb) 59.6 59.6 ug/L 1 50 118 70 130 -
Nickel(Ni) 59.3 59.3 ug/L 1 50 116 70 130 -
Selenium (Se) 42.3 42.3 ug/L 1 50 83.3 70 130 -
Silver(Ag) Low Level 61.1 61.1 ug/L 1 50 122 70 130 -

Certificate of Laboratory Analysis 17 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Level II QC Summary
Q22120301 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS #1 Parent Sample: J22120333 -- 2022031900
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
Thallium (TI) Low Level 54.7 54.7 ug/L 1 50 109 70 130 -
Zinc(Zn) 134 134 ug/L 1 50 138 70 130 M
MSD #1 Parent Sample: J22120333 -- 2022031900
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL RPD Qualifier
Antimony(Sb) 51.3 51.3 ug/L 1 50 102 70 130 16.6 -
Arsenic(As) 51.4 51.4 ug/L 1 50 102 70 130 15.5 -
Beryllium (Be) 51.4 51.4 ug/L 1 50 103 70 130 17 -
Cadmium (Cd) 51.5 51.5 ug/L 1 50 103 70 130 15.3 -
Chromium (Cr) 53.2 53.2 ug/L 1 50 104 70 130 16.6 -
Copper(Cu) 52.4 52.4 ug/L 1 50 101 70 130 16.6 -
Lead(Pb) 52.3 52.3 ug/L 1 50 103 70 130 13.3 -
Nickel(Ni) 51.5 51.5 ug/L 1 50 101 70 130 14.4 -
Selenium (Se) 50.3 50.3 ug/L 1 50 99.2 70 130 17.5 -
Silver(Ag) Low Level 52.1 52.1 ug/L 1 50 104 70 130 15.8 -
Thallium (TI) Low Level 48.3 48.3 ug/L 1 50 96.5 70 130 12.4 -
Zinc(Zn) 117 117 ug/L 1 50 104 70 130 28.6 R1
Qualifiers:
M Matrix Spike and/or Matrix Spike Duplicate recovery was outside of the control limits.The associated
Laboratory Control Spike(LCS)recovery was acceptable.
R1 Relative Percent Difference exceeded method acceptance limits.

Certificate of Laboratory Analysis 18 of 49
This report shall not be reproduced, except in full.
Order# J22120333
Level II QC Summary
Q22120326 TSS_LL Total Suspended Solids-Low RL 2.5
Blank #1
Parameter Measured Final Units: Di RDL Relative Concentration Qualifier
TSS 0.3 mg/L 1 2.5 <1/2 RDL
Duplicate #1 Parent Sample: J22110457 -- 2022030401
Parameter Measured Final Units: Dil Limit Range RPD Qualifier
TSS 17.6 mg/L 1 11.4 R1
LCS #1
Parameter Measured Final Units: Dil Spike %Recovery LCL UCL Qualifier
TSS 93.2 mg/L 1 100 93.2 90 110 -
Qualifiers:
R1 Relative Percent Difference exceeded method acceptance limits.

Pace Analytical Services,LLC
aceAnalytical® 9800 Hunter e. Suite 100
078
Huntersville,NC 28078
www.pacelabs.com [phone]
December 23, 2022
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg. 7405 MG30A2
Huntersville, NC 28078
RE: Project: J22120333
Pace Project No.: 92642764
Dear Program Manager:
Enclosed are the analytical results for sample(s)received by the laboratory on December 16, 2022. The results relate only
to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual,where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services-Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Lorri Patton
[e-mail]
1(828)254-7176
Project Manager
Enclosures
f.YP s
4 .: = REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 1 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf96c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
CERTIFICATIONS
Project: J22120333
Pace Project No.: 92642764
Pace Analytical Services Charlotte
South Carolina Laboratory ID:99006 South Carolina Certification#:99006001
9800 Kincey Ave.Ste 100, Huntersville, NC 28078 South Carolina Drinking Water Cert.#:99006003
North Carolina Drinking Water Certification#:37706 Florida/NELAP Certification#: E87627
North Carolina Field Services Certification#:5342 Kentucky UST Certification#:84
North Carolina Wastewater Certification#: 12 Louisiana DoH Drinking Water#: LA029
South Carolina Laboratory ID:99006 Virginia/VELAP Certification#:460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 2 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 199,c8fhe. Suite 100
Henteruntersville,NC 28078078
www.pacelabs.com [phone]
SAMPLE SUMMARY
Project: J22120333
Pace Project No.: 92642764
Lab ID Sample ID Matrix Date Collected Date Received
92642764001 2022031900 Water 12/14/22 18:15 12/16/22 14:05
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 3 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf92c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
SAMPLE ANALYTE COUNT
Project: J22120333
Pace Project No.: 92642764
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
92642764001 2022031900 EPA 1664B REL 1 PASI-C
PASI-C=Pace Analytical Services-Charlotte
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 4 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf9gc rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
PROJECT NARRATIVE
Project: J22120333
Pace Project No.: 92642764
Method: EPA 1664B
Description: 1664 SGT-HEM,TPH
Client: Duke Energy
Date: December 23,2022
General Information:
1 sample was analyzed for EPA 1664B by Pace Analytical Services Charlotte. All samples were received in acceptable condition with
any exceptions noted below or on the chain-of custody and/or the sample condition upon receipt form(SCUR)attached at the end of
this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations(including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank,where applicable,with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences(RPDs)were within acceptance criteria with any exceptions noted below.
Duplicate Sample:
All duplicate sample results were within method acceptance criteria with any exceptions noted below.
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
without the written consent of Pace Analytical Services,LLC. Page 5 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800194c8fhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
ANALYTICAL RESULTS
Project: J22120333
Pace Project No.: 92642764
Sample: 2022031900 Lab ID: 92642764001 Collected: 12/14/22 18:15 Received: 12/16/22 14:05 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
1664 SGT-HEM,TPH Analytical Method: EPA 1664E
Pace Analytical Services-Charlotte
Total Petroleum Hydrocarbons ND mg/L 4.9 1 12/23/22 00:30
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 12/23/2022 12:55 PM without the written consent of Pace Analytical Services,LLC. Page 6 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf9gc rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
QUALITY CONTROL DATA
Project: J22120333
Pace Project No.: 92642764
QC Batch: 745392 Analysis Method: EPA 1664B
QC Batch Method: EPA 1664E Analysis Description: 1664 SGT-HEM,TPH
Laboratory: Pace Analytical Services-Charlotte
Associated Lab Samples: 92642764001
METHOD BLANK: 3877653 Matrix: Water
Associated Lab Samples: 92642764001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Total Petroleum Hydrocarbons mg/L ND 5.0 12/23/22 00:30
LABORATORY CONTROL SAMPLE: 3877654
Spike LCS LCS %Rec
Parameter Units Conc. Result %Rec Limits Qualifiers
Total Petroleum Hydrocarbons mg/L 20 16.2 81 64-132
MATRIX SPIKE SAMPLE: 3877655
35766750001 Spike MS MS %Rec
Parameter Units Result Conc. Result %Rec Limits Qualifiers
Total Petroleum Hydrocarbons mg/L 4.9U 19.4 14.3 65 64-132
SAMPLE DUPLICATE: 3877656
35767365001 Dup Max
Parameter Units Result Result RPD RPD Qualifiers
Total Petroleum Hydrocarbons mg/L 4.9U ND 30
Results presented on this page are in the units indicated by the"Units"column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 12/23/2022 12:55 PM without the written consent of Pace Analytical Services,LLC. Page 7 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 lf96c rhe. Suite 100
Huntersville,NC 28078
www.pacelabs.com [phone]
QUALIFIERS
Project: J22120333
Pace Project No.: 92642764
DEFINITIONS
DF-Dilution Factor,if reported,represents the factor applied to the reported data due to dilution of the sample aliquot.
ND-Not Detected at or above adjusted reporting limit.
TNTC-Too Numerous To Count
J-Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL-Practical Quantitation Limit.
RL-Reporting Limit-The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S-Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270.The result for each analyte is
a combined concentration.
Consistent with EPA guidelines,unrounded data are displayed and have been used to calculate%recovery and RPD values.
LCS(D)-Laboratory Control Sample(Duplicate)
MS(D)-Matrix Spike(Duplicate)
DUP-Sample Duplicate
RPD-Relative Percent Difference
NC-Not Calculable.
SG-Silica Gel-Clean-Up
U-Indicates the compound was analyzed for,but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting.Therefore,calculated parameters that are typically reported as
"Total"may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited.Contact your Pace PM for the current list of accredited analytes.
TNI-The NELAC Institute.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 12/23/2022 12:55 PM without the written consent of Pace Analytical Services,LLC. Page 8 of 12

Pace Analytical Services,LLC
aceAnalytical® 9800 Ifs?c r e. Suite100
Huntersville,NC 28078078
www.pacelabs.com [phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: J22120333
Pace Project No.: 92642764
Analytical
Lab ID Sample ID QC Batch Method QC Batch Analytical Method Batch
92642764001 2022031900 EPA 1664B 745392
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date: 12/23/2022 12:55 PM without the written consent of Pace Analytical Services,LLC. Page 9 of 12

LJU#_Title: ENV-FRM-h1UN1-0083 v01—
Sample Condition Upon Receipt
/ - ace
28 of 49
Effective Date: 05/12/202205/12/2022
Laboratory receiving samples:
Asheville ❑ Eden Greenwood I I Huntersville n Raleigh❑ M�-�� : ;Ilo( I Quntal—? Kernersvillen
Sample Condition Client Name: W Oft : 92642764
Upon Receipt Y Project ii
Courier: ❑Fed Ex ❑UPS ❑LISPS ['Client II I III 11111111
11111111
❑Commercial ❑Pace ❑Other: 92642764
Custody Seal Present? Eves [No Seals Intact? Des ❑No
Date/Initials Person Examining Contents: itii/
Vik/ 2-
Packing Material: ❑Bubble Wrap ['Bubble Bags ['None ❑ Other Biological Tissue Frozen?
Thermometer: _ Des [No ❑N/A
Li IR Gun ID: Z V Type of Ice: [ Wet ❑Blue ['None
c Correction Factor:
CoolerTemp: L• 7 Add/Subtract(°C) Temp should be above freezing to 6°C
❑Samples out of temp criteria.Samples on ice,cooling process
Cooler Temp Corrected(CC): 1 .CZ \ l . . Z has begun
USDA Regulated Soil g (❑ N/A,water sample)
Did samples originate in a quarantine zone within the United States:CA,NY,or SC Did samples originate from a foreign source(internationally,
(check maps)?Oyes ❑No including Hawaii and Puerto Rico)?Des ONo
Comments/Discrepancy:
Chain of Custody Present? Oyes END ❑N/A 1.
Samples Arrived within Hold Time? dYes ONo ON/A 2.
Short Hold Time Analysis(<72 hr.)? Eves (:),No ON/A 3.
Rush Turn Around Time Requested? Eyes ❑No ON/A 4.
Sufficient Volume? dyes ❑No ON/A 5,
Correct Containers Used? dyes ONo ON/A 6.
-Pace Containers Used? Oyes ONo ON/A
Containers Intact? Oyes ONo ON/A 7.
Dissolved analysis:Samples Field Filtered? Oyes ❑No ON/A 8.
Sample Labels Match COC? Oyes ❑No ON/A 9.
-Includes Date/Time/ID/Analysis Matrix:
Headspace in VOA Vials(>5-6mm)? Oyes ONo ON/A 10.
Trip Blank Present? ❑Yes ONo ON/A 11.
Trip Blank Custody Seals Present? Oyes ONo ON/A
COMMENTS/SAMPLE DISCREPANCY Field Data Required? Eyes ONo
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: Date:
Project Manages SRF Review: Date:
Qualtrax ID: 69614 Page 1 of 2 Page 10 of 12

qucrt-Title: ENV-FRM-HUN1-0083 vOl_Sample Condition Upon Receipt
ce -
-- 29 of 49
Effective Date: 05/12/202205/12/2022
*Check mark top half of box if pH and/or dechlorination is verified and Projec' WO# : 92642764
within the acceptance range for preservation samples. PM: LJP Due Date: 12/23/22
Exceptions:VOA,Coliform,TOC,Oil and Grease,DRO/8015(water)DOC,LLHg
CLIENT: 92-Duke Ener
**Bottom half of box is to list number of bottles
***Check all unpreserved Nitrates for chlorine
0 A ill a
2 - a .� - z
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z z z a „ " .- a z ,Ti n O a
z N ,:, Z N Z — N 0 a Z rn Al m Z
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pH Adjustment Log for Preserved Samples
Sample ID Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative lot#
adjusted added
I _ _
Note:'WketTevenhere is a-discrepancy affecting North Carolina compliance samples,a copy of this form will be sent to the North Carolina DENR Certification Office(i.e.
Out of hold,incorrect preservative,out of temp,incorrect containers.
Qualtrax ID: 69614 Page 2 of 2 Page 11 of 12

Customer must Complete 30 of 49
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31 of 49
aceAnalytical
Report of Analysis
Duke Energy
13339 Hagers Ferry Rd
Bldg 7405
Huntersville, NC 28078
Attention: Jason Robinson
Project Name: Marshall Quarterly Stormwater- LL Hg
Project Number: J22120333
Lot Number:XL19041
Date Completed:12/30/2022
01/03/2023 4:20 PM
Approved and released by:
Project Coordinator 1: Jenna S. Holliday
ACCREDITEDAO
TESTING uBORATORS
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety,without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC(formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
Tel: [phone] Fax: [phone] www.pacelabs.com
Page 1 of 18

32 of 49
PACE ANALYTICAL SERVICES, LLC
SC DHEC No:32010001 NELAC No: E87653 NC DENR No:329 NC Field Parameters No:5639
Case Narrative
Duke Energy
Lot Number: XL19041
This Report of Analysis contains the analytical result(s)for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report. Where
sampling is conducted by the client, results relate to the accuracy of the information provided, and as the
samples are received.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace")
Laboratory Quality Manual, standard operating procedures (SOPs), and Pace policies. Any exceptions to
the TNI standards, the Laboratory Quality Manual, SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI
scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2-
dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC
Walkley-Black, Biological Tissue: All, Non-Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7,
Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320
B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal
Coliform Colilert-18.
If you have any questions regarding this report, please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services,LLC(formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172(803)791-9700 Fax[phone] www.pacelabs.com
Page 2 of 18

PACE ANALYTICAL SERVICES , LLC
Sample Summary
Duke Energy
Lot Number: XL19041
Project Name: Marshall Quarterly Stormwater -LL Hg
Project Number: J22120333
Sample Number Sample ID Matrix Date Sampled Date Received
001 2022031898 Aqueous 12/14/2022 1700 12/19/2022
002 2022031899 Aqueous 12/14/2022 1705 12/19/2022
003 2022031900 Aqueous 12/14/2022 1815 12/19/2022
004 2022031906 Aqueous 12/14/2022 1855 12/19/2022
005 2022031907 Aqueous 12/14/2022 1815 12/19/2022
006 2022031908 Aqueous 12/14/2022 1815 12/19/2022
(6 samples)
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 3 of 18

PACE ANALYTICAL SERVICES , LLC
Detection Summary
Duke Energy
Lot Number: XL19041
Project Name: Marshall Quarterly Stormwater -LL Hg
Project Number: J22120333
Sample Sample ID Matrix Parameter Method Result Q Units Page
001 2022031898 Aqueous Mercury(CVAFS) 1631E 1.33 ng/L 5
002 2022031899 Aqueous Mercury(CVAFS) 1631E 20.3 ng/L 6
003 2022031900 Aqueous Mercury(CVAFS) 1631E 3.79 ng/L 7
004 2022031906 Aqueous Mercury(CVAFS) 1631E 3.26 ng/L 8
005 2022031907 Aqueous Mercury(CVAFS) 1631E 3.87 ng/L 9
(5 detections)
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 4 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL1 9 04 1-00 1
Description:2022031898 Matrix:Aqueous
Date Sampled:12/14/2022 1700 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/22/2022 0607 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 1.33 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
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Page 5 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL19041-002
Description:2022031899 Matrix:Aqueous
Date Sampled:12/14/2022 1705 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
2 1631E 1 12/30/2022 0605 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 20.3 0.500 ng/L 2
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 6 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL19041-003
Description:2022031900 Matrix:Aqueous
Date Sampled:12/14/2022 1815 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/22/2022 0613 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 3.79 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 7 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL1 9 04 1-004
Description:2022031906 Matrix:Aqueous
Date Sampled:12/14/2022 1855 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/22/2022 0629 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 3.26 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 8 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL1 9 04 1-005
Description:2022031907 Matrix:Aqueous
Date Sampled:12/14/2022 1815 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/22/2022 0635 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 3.87 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 9 of 18

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:XL19041-006
Description:2022031908 Matrix:Aqueous
Date Sampled:12/14/2022 1815 Project Name:Marshall Quarterly
Date Received:12/19/2022 Project Number:J22120333
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 12/22/2022 0640 JAB2 12/21/2022 0910 63294
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 10 of 18

QC Summary
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:XL19041
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 11 of 18

Mercury (CVAFS) - NIB
Sample ID: XQ63294-001 Matrix: Aqueous
Batch:63294 Prep Method:
Analytical Method: 1631E Prep Date: 12/21/2022 0910
Parameter Result Q Dil LOQ Units Analysis Date
Mercury(CVAFS) ND 1 0.500 ng/L 12/22/2022 0535
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:XL19041
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 12 of 18

Mercury (CVAFS) - LCS
Sample ID: XQ63294-002 Matrix: Aqueous
Batch:63294 Prep Method:
Analytical Method: 1631E Prep Date: 12/21/2022 0910
Spike
Amount Result %Rec
Parameter (ng/L) (ng/L) Q Dil %Rec Limit Analysis Date
Mercury(CVAFS) 5.00 5.16 1 103 75-125 12/22/2022 0546
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:XL19041
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 13 of 18

Mercury (CVAFS) - MS
Sample ID: XL19041-003MS Matrix: Aqueous
Batch:63294 Prep Method:
Analytical Method: 1631E Prep Date: 12/21/2022 0910
Sample Spike
Amount Amount Result %Rec
Parameter (ng/L) (ng/L) (ng/L) Q Dil %Rec Limit Analysis Date
Mercury(CVAFS) 3.79 5.00 8.75 1 99 71-125 12/22/2022 0618
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:XL19041
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 14 of 18

Mercury (CVAFS) - MSD
Sample ID: XL19041-003MD Matrix: Aqueous
Batch:63294 Prep Method:
Analytical Method: 1631E Prep Date: 12/21/2022 0910
Sample Spike
Amount Amount Result %Rec %RPD
Parameter (ng/L) (ng/L) (ng/L) Q Dil %Rec %RPD Limit Limit Analysis Date
Mercury(CVAFS) 3.79 5.00 8.58 1 96 1.9 71-125 24 12/22/2022 0624
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:XL19041
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 15 of 18

Chain of Custody
and
Miscellaneous Documents
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 16 of 18

PACE ANALYTICAL SERVICES , LLC
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Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 17 of 18

PACE ANALYTICAL SERVICES , LLC
DC#_Title7 ENV-FRM-WCOL-0286 v02_Samptes Receipt Checklist 1SRCJ
Effective Date:8J2/2022
Sample Receipt Checklist (SRC)
client: DUKE EN ROY _ Cooler In, ted by/date: I3R[3 i 12/19.'?2 Lot#: XI-19°41
axis of receipt: if Pace II Client •�ll FedEx • Other.f NI Yes No l Writ custody seals present on the cooler? MI
111��'Yes' No 2.If custody seals were 'resent,acre the .intact and unbroken?
pH Strip II): NA Clllotiuc Strip ID: NA Tested by.WA
Original 1 entpczature upon receipt;Derived(Corrected)tempenitiire upon receipt %Solid Snap-Cup ID: NA
12.6 i 12,6 0l: NA /N A oC NA /NA cc NA /NA oC
's,1ethod:fi'cunprrature Blank Q.1, inst Bottles tit Gun ID: s IR Gun Correction Factor: o °C
I fethod of coolant: • Wet Ice NI Ice Packs Dry Ice © None
L]Ycs ©No DNA3. Were: coolers received at or below 6.0°C?If no,was Project Manager notified?
PM was Notified by: hone 1eagt/face-to-face(circle one). I
Yes No LINA 4. Is the commercial courier's packing slip attached to this form?
INYes I.No 5. Wcrc proper custody procedures(relinquished/received)followed?
Yes No 6. Were samples listed on the COC and all sample containers?
✓ Yes II No 7. Was collection date&time listed on the COC and all sample containers!
'Yes •No.8.Did all container label infointatiou OD,dare,rime)agree with the COC?
Yes No 9. Were tests to be performed listed on the COC? U
['Yes E N 0 10.Did all samples arrive in the proper containers for each test and/or in good condition
(unbroken. Ms on.etc.)? I
Mi Yes M N II. Was adequate sample volume available? •
0 Yes I No 12.Were all samples received within s the holding time or 48 hours.whichever come,first?
QYes DNo 13.Were all samples containers accounted far?( omissingiexcess)
II
i 1A 14.Were VOA,8015C and RSK-I 75 samples free of babbles>'pea-size"(W'or 6n m in
[]Yes [1No ✓
i
dameter)in any of the VOA vials?
IN Yes No 0EI I5.Were all DRO,'uteraLsMutrien�t samples received at a pH of<2?
•yes in
El o I f Mal 16.Were all cyanide Wiles received at a 'H>12 and std kde sau i lcs received at a pH:>9? •
1=1Yes ❑N' r_ '`� 17. Were all applicableN 1t/TICN cyanide')icno1/625. ,t'8.3 i<O.Smg,L)samples oc o
U residual chlorine?
['Yes [�✓ No DNA 18.Was the quote number listed on the container label?If yes,Quote
Sample Preservation (Must be completed for any sample(s)incorre.tlypreceived or with lteadspace.) I
,SKWIic(9)NA were received incosiecily preserved and were adjusted accorriil "-►
in sample receiving with NA ml.of circle one:H2SO4,HNO3,HCL NaOH ruing SR tr' NA —
'lime of preservation NA _ . If more titan one preservative is needed,please note in the comments below.
i 'ample(s) N'A ..were received with bubbles>6 unn in diameter.
Samples(s) NA were received with TRC>0.5 tug/1.(If iiiI9 IS no)and were
adjusted accordingly in sample receiving with sodium thiosulhhte(Na.S203)with Unique ID: NA
Comments:
Qtraltra>L t D:56360 Pace*Analytical Services,t.LC Peg• 1 of 1
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 18 of 18

49 of 49
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
h DUKE Analytical Laboratory Services 1 ;i i - Analytical Laboratory Use Only
Mail Code MGO3A2 (Building 7405) Samples NC I Page 1 Of 1
1 t J' 7( 7 j 3 Originating SG_ I DISTRIBUTION
ENERGY® rater1333 Hle, Ns Ferry 0 .4C . > From OHHuntersville, N.C. 28D78 ORIGINAL to LAB,
I I SAMPLE PROGRAMCOPYtoCLIENT
[phone] J� _ Ground Water
Fax: [phone] I . •
l /2•/5 �Z ( 7Zp NPDES
1)Project Name 2)Phone No: 1 iVendbr Other
Marshall Quarterly Stormwater ��,2_ Plant
PaCe ooler Temp(C) RCRA Waste
E 3)Client 4)Fax No: tsPr serv.:1=H�
o Scott La Sala,Don Safrit PO # 9 17 2 7 f 2 2=H SO4 3=HtO
j 4=1he. e 3 4 4 4.2 3 Reid
E 5)Buslness Unit: 6)Project ID: 7)Mail Code: tn -
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goDrooriate are_ $, Q ® In . tv
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Important: When specific accounting has been established and is not indicated above <~ cfl a U
we need the following' 1) Enter correct accounting in all 5 accounting fields above, or N-'I� ai < v o
.?I Provide correct accounting for Operating Unit and Process ID. co¢cn in 2 c? m
_.._.._.._.._ 2 a_ — W 2 o
LAB USE ONLY ; 12Chem "Collection Information E R -'-, �I
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June 19, 2023
Analytical Report

DUKE Analytical Laboratory 1 of 41
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex- MGO3A2
Phone: [phone] Fax: [phone]
Order Summary Report
Order Number: J23060390
Project Name: MARSHALL-NPDES STORMWATER
EquisTaskCode:
Customer Name(s): Scott LaSala, Don Safrit,Zakary Daniel
Customer Address: Marshall Steam Station
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Lab Contact: Jason Robinson Phone: [phone]
Report Authorized By: Date: 7/19/2023
(Signature)
a on Robinson
Program Comments:
Please contact the Program Manager(Jason Robinson)with any questions regarding this report.
Data Flags &Calculations:
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative.An estimation of
the uncertainty of measurement for the results in the report is available upon request.This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package,Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub-contracted Laboratory Results, Customer Specific Data Sheets, Reports&
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody(COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR)Certificate#248, South Carolina
(DHEC) Laboratory ID#99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions: 2of41
Collection
Sample ID Plant/Station Date and Time Collected By Sample Description
2023014935 MARSHALL 19-Jun-23 11:15 AM Scott LaSala SW002
2023014936 MARSHALL 19-Jun-23 11:25 AM Scott LaSala SW003
2023014937 MARSHALL 19-Jun-23 1:00 PM Scott LaSala SW007
2023014938 MARSHALL 19-Jun-23 10:35 AM Scott LaSala SW008
2023014939 MARSHALL 19-Jun-23 10:40 AM Scott LaSala SW012
2023014940 MARSHALL 19-Jun-23 10:30 AM Scott LaSala SW022
2023014941 MARSHALL 19-Jun-23 12:30 PM Scott LaSala SW026
2023014942 MARSHALL 19-Jun-23 1:00 PM Scott LaSala Hg Dup
2023014943 MARSHALL 19-Jun-23 1:15 PM Scott LaSala Hg Field Blank
2023014944 MARSHALL 19-Jun-23 Scott LaSala Hg Trip Blank
10 Total Samples

3 of 41
Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals ❑ Yes ❑ No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. ❑ Yes V No
All laboratory QA/QC requirements are acceptable. El Yes ❑ No
Report Sections Included:
❑� Job Summary Report Sub-contracted Laboratory Results
❑� Sample Identification ❑ Customer Specific Data Sheets, Reports,&Documentation
❑d Technical Validation of Data Package ❑ Customer Database Entries
❑� Analytical Laboratory Certificate of Analysis Chain of Custody
❑� Analytical Laboratory QC Report Electronic Data Deliverable(EDD)Sent Separately
Reviewed By: Jason Robinson Date: 7/19/2023

Certificate of Laboratory Analysis 4of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW002 Sample#: 2023014935
Collection Date: 06/19/2023 11:15 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - Q23060339
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 06/22/2023 10:58 CELLIO6
Zinc(Zn) 0.021 mg/L 0.005 1 EPA 200.7 R 4.4 06/22/2023 10:58 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q23060343
Antimony(Sb) 5.09 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Copper(Cu) 2.56 ug/L 2 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Lead(Pb) <10 ug/L 10 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Nickel(Ni) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 06/22/2023 13:40 MHALL3
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 14 mg/L 2.5 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 5of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW003 Sample#: 2023014936
Collection Date: 06/19/2023 11:25 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - Q23060339
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 06/22/2023 11:03 CELLIO6
Zinc(Zn) 0.027 mg/L 0.005 1 EPA 200.7 R 4.4 06/22/2023 11:03 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q23060343
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Arsenic(As) 2.25 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Chromium (Cr) 1.91 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Copper(Cu) 3.38 ug/L 2 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Lead(Pb) 1.21 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Nickel(Ni) 1.86 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 06/22/2023 13:49 MHALL3
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 22 mg/L 3.2 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 6of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW007 Sample#: 2023014937
Collection Date: 06/19/2023 01:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
OIL AND GREASE IN WATER-SOLID PHASE EXTRACTION-(Analysis Performed by Pace Laboratories)
Vendor Parameter Complete Vendor Method V_PACE
MERCURY IN WATER(AVERAGE) -
Mercury Average 6.89 ng/L 0.5 1 Calculation
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - Q23060339
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 06/22/2023 11:07 CELLIO6
Zinc(Zn) 0.117 mg/L 0.005 1 EPA 200.7 R 4.4 06/22/2023 11:07 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q23060343
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Arsenic(As) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Copper(Cu) 3.23 ug/L 2 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Nickel(Ni) 2.34 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 06/22/2023 13:57 MHALL3
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS <2.5 mg/L 2.5 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 7of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW008 Sample#: 2023014938
Collection Date: 06/19/2023 10:35 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 29 mg/L 2.5 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 8of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW012 Sample#: 2023014939
Collection Date: 06/19/2023 10:40 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 12 mg/L 2.5 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 9of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW022 Sample#: 2023014940
Collection Date: 06/19/2023 10:30 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 6.9 mg/L 2.5 1 SM2540D 2015 06/20/2023 13:29 SNEGLIA

Certificate of Laboratory Analysis 10of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: SW026 Sample#: 2023014941
Collection Date: 06/19/2023 12:30 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY
TOTAL RECOVERABLE METALS BY ICP - Q23060339
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 06/22/2023 11:25 CELLIO6
Zinc(Zn) <0.005 mg/L 0.005 1 EPA 200.7 R 4.4 06/22/2023 11:25 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q23060343
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Arsenic(As) 1.05 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Copper(Cu) <2 ug/L 2 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Lead(Pb) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Nickel(Ni) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Selenium (Se) <1 ug/L 1 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 06/22/2023 14:40 MHALL3
Total Suspended Solids-Low RL 2.5 - Q23060327
TSS 4.2 mg/L 2.5 1 SM2540D 2015 06/21/2023 06:47 SNEGLIA

Certificate of Laboratory Analysis 11 of 41
This report shall not be reproduced, except in full.
Order# J23060390
Site: Hg Dup Sample#: 2023014942
Collection Date: 06/19/2023 01:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method VSHEALY

Certificate of Laboratory Analysis 12 of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: Hg Field Blank Sample#: 2023014943
Collection Date: 06/19/2023 01:15 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 13of41
This report shall not be reproduced, except in full.
Order# J23060390
Site: Hg Trip Blank Sample#: 2023014944
Collection Date: 06/19/2023 Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Pace Labs)
Vendor Parameter Complete Vendor Method V_SHEALY

Certificate of Laboratory Analysis 14 of41
This report shall not be reproduced, except in full.
Order# J23060390
Level II QC Summary
Q23060339 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Boron(B) 0.00124 0.00124 mg/L 1 0.05 < 1/2 RDL
Zinc(Zn) 0.0011 0.0011 mg/L 1 0.005 < 1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Boron(B) 4.98 4.98 mg/L 1 5 99.6 85 115 -
Zinc(Zn) 5.04 5.04 mg/L 1 5 101 85 115 -
MS #1 Parent Sample: J23060389 -- 2023014933
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Boron(B) 5.03 5.03 mg/L 1 5 99.2 70 130 -
Zinc(Zn) 5.77 5.77 mg/L 1 5 99 70 130 -
MSD #1 Parent Sample: J23060389 -- 2023014933
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Boron(B) 5.02 5.02 mg/L 1 5 99.1 70 130 0.0796 -
Zinc(Zn) 5.77 5.77 mg/L 1 5 99.2 70 130 0.104 -
MS #2 Parent Sample: J23060390 -- 2023014941
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Boron(B) 5.05 5.05 mg/L 1 5 101 70 130 -
Zinc(Zn) 5.06 5.06 mg/L 1 5 101 70 130 -
MSD #2 Parent Sample: J23060390 -- 2023014941
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Boron(B) 4.99 4.99 mg/L 1 5 99.4 70 130 1.18 -
Zinc(Zn) 4.99 4.99 mg/L 1 5 99.7 70 130 1.4 -

Certificate of Laboratory Analysis 15of41
This report shall not be reproduced, except in full.
Order# J23060390
Level II QC Summary
Q23060343 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Antimony(Sb) -0.065 -0.065 ug/L 1 1 < 1/2 RDL
Arsenic(As) -0.021 -0.021 ug/L 1 1 < 1/2 RDL
Beryllium (Be) -0.006 -0.006 ug/L 1 1 < 1/2 RDL
Cadmium (Cd) 0.005 0.005 ug/L 1 1 <1/2 RDL
Chromium (Cr) -0.009 -0.009 ug/L 1 1 < 1/2 RDL
Copper(Cu) -0.005 -0.005 ug/L 1 2 < 1/2 RDL
Lead (Pb) 0.001 0.001 ug/L 1 1 < 1/2 RDL
Nickel(Ni) 0.026 0.026 ug/L 1 1 < 1/2 RDL
Selenium (Se) -0.032 -0.032 ug/L 1 1 < 1/2 RDL
Silver(Ag)Low Level -0.003 -0.003 ug/L 1 0.3 < 1/2 RDL
Thallium(TI)Low Level -0.004 -0.004 ug/L 1 0.2 < 1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Antimony(Sb) 50 50 ug/L 1 50 100 85 115 -
Arsenic(As) 50.6 50.6 ug/L 1 50 101 85 115 -
Beryllium (Be) 50 50 ug/L 1 50 100 85 115 -
Cadmium (Cd) 51.3 51.3 ug/L 1 50 103 85 115 -
Chromium (Cr) 50 50 ug/L 1 50 100 85 115 -
Copper(Cu) 50.7 50.7 ug/L 1 50 101 85 115 -
Lead (Pb) 51.5 51.5 ug/L 1 50 103 85 115 -
Nickel(Ni) 50.4 50.4 ug/L 1 50 101 85 115 -
Selenium (Se) 49.3 49.3 ug/L 1 50 98.6 85 115 -
Silver(Ag)Low Level 50.8 50.8 ug/L 1 50 102 85 115 -
Thallium(TI)Low Level 50.3 50.3 ug/L 1 50 101 85 115 -
MS #1 Parent Sample: J23050090 -- 2023010674
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Antimony(Sb) 49.3 49.3 ug/L 1 50 98.1 70 130 -
Arsenic(As) 54 54 ug/L 1 50 101 70 130 -
Beryllium (Be) 51.5 51.5 ug/L 1 50 103 70 130 -
Cadmium (Cd) 50.8 50.8 ug/L 1 50 102 70 130 -
Chromium (Cr) 52.3 52.3 ug/L 1 50 103 70 130 -
Copper(Cu) 60.5 60.5 ug/L 1 50 99.2 70 130 -
Lead (Pb) 52.5 52.5 ug/L 1 50 104 70 130 -
Nickel(Ni) 52.6 52.6 ug/L 1 50 100 70 130 -
Selenium (Se) 48.5 48.5 ug/L 1 50 96 70 130 -
Silver(Ag)Low Level 50.5 50.5 ug/L 1 50 101 70 130 -
Thallium(TI)Low Level 50.6 50.6 ug/L 1 50 101 70 130 -

Certificate of Laboratory Analysis 16of41
This report shall not be reproduced, except in full.
Order# J23060390
Level II QC Summary
Q23060343 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MSD # 1 Parent Sample: J23050090 -- 2023010674
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Antimony(Sb) 50 50 ug/L 1 50 99.4 70 130 1.36 -
Arsenic(As) 54.1 54.1 ug/L 1 50 101 70 130 0.196 -
Beryllium (Be) 49.6 49.6 ug/L 1 50 99 70 130 3.91 -
Cadmium (Cd) 51.3 51.3 ug/L 1 50 103 70 130 1 -
Chromium (Cr) 51.8 51.8 ug/L 1 50 102 70 130 1.1 -
Copper(Cu) 61.1 61.1 ug/L 1 50 101 70 130 1.35 -
Lead (Pb) 52.8 52.8 ug/L 1 50 104 70 130 0.449 -
Nickel(Ni) 52.3 52.3 ug/L 1 50 99.5 70 130 0.455 -
Selenium (Se) 48.2 48.2 ug/L 1 50 95.4 70 130 0.636 -
Silver(Ag)Low Level 50.7 50.7 ug/L 1 50 101 70 130 0.293 -
Thallium(TI)Low Level 50.9 50.9 ug/L 1 50 102 70 130 0.585 -
MS #2 Parent Sample: J23060390 -- 2023014937
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Antimony(Sb) 50.7 50.7 ug/L 1 50 101 70 130 -
Arsenic(As) 48.3 48.3 ug/L 1 50 95.7 70 130 -
Beryllium (Be) 50.2 50.2 ug/L 1 50 100 70 130 -
Cadmium (Cd) 50 50 ug/L 1 50 99.9 70 130 -
Chromium (Cr) 50.9 50.9 ug/L 1 50 101 70 130 -
Copper(Cu) 51.9 51.9 ug/L 1 50 97.4 70 130 -
Lead (Pb) 51.4 51.4 ug/L 1 50 101 70 130 -
Nickel(Ni) 50.1 50.1 ug/L 1 50 95.6 70 130 -
Selenium (Se) 49 49 ug/L 1 50 96.4 70 130 -
Silver(Ag)Low Level 49.8 49.8 ug/L 1 50 99.5 70 130 -
Thallium(TI)Low Level 49.9 49.9 ug/L 1 50 99.7 70 130 -
MSD #2 Parent Sample: J23060390 -- 2023014937
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Antimony(Sb) 50.4 50.4 ug/L 1 50 101 70 130 0.46 -
Arsenic(As) 48.3 48.3 ug/L 1 50 95.7 70 130 0.092 -
Beryllium (Be) 49.7 49.7 ug/L 1 50 99.1 70 130 1.11 -
Cadmium (Cd) 50 50 ug/L 1 50 99.8 70 130 0.0561 -
Chromium (Cr) 50.7 50.7 ug/L 1 50 100 70 130 0.477 -
Copper(Cu) 51.7 51.7 ug/L 1 50 96.9 70 130 0.546 -
Lead (Pb) 51.3 51.3 ug/L 1 50 101 70 130 0.17 -
Nickel(Ni) 50.7 50.7 ug/L 1 50 96.7 70 130 1.14 -
Selenium (Se) 49.4 49.4 ug/L 1 50 97.4 70 130 0.943 -
Silver(Ag)Low Level 49.7 49.7 ug/L 1 50 99.2 70 130 0.284 -
Thallium(TI)Low Level 50.1 50.1 ug/L 1 50 100 70 130 0.454 -

Certificate of Laboratory Analysis 17of41
This report shall not be reproduced, except in full.
Order# J23060390
Level II QC Summary
Q23060327 TSS_LL Total Suspended Solids-Low RL 2.5
Blank # 1
Parameter Measured Final Units: Di! RDL Relative Concentration Qualifier
TSS 0 mg/L 1 2.5 <1/2 RDL
Duplicate #1 Parent Sample: J23050076 -- 2023010630
Parameter Measured Final Units: Di! Limit Range RPD Qualifier
TSS 0.8 mg/L 1 28.6 R2
LCS #1
Parameter Measured Final Units: Di! Spike % Recovery LCL UCL Qualifier
TSS 93.2 mg/L 1 100 93.2 90 110 -
Qualifiers:
R2 % RPD indeterminate due to low concentration in the parent sample.

18 of 41
aceAnalytical
Report of Analysis
Duke Energy
13339 Hagers Ferry Rd
Bldg 7405
Huntersville, NC 28078
Attention: Jason Robinson
Project Name: Marshall Quarterly Stormwater
Project Number: J23060390
Lot Number:YF21085
Date Completed:07/13/2023
07/13/2023 9:23 PM
Approved and released by:
Project Manager II: Cathy S. Dover
ACCREDITEDiho
TESTING uBOMTORS
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety,without the written approval of Pace Analytical Services, LLC.
Pace Analytical Services, LLC(formerly Shealy Environmental Services, Inc.)
106 Vantage Point Drive West Columbia, SC 29172
Tel: [phone] Fax: [phone] www.pacelabs.com
Page 1 of 23

19 of 41
PACE ANALYTICAL SERVICES, LLC
SC DHEC No:32010001 NELAC No: E87653 NC DENR No:329 NC Field Parameters No:5639
Case Narrative
Duke Energy
Lot Number: YF21085
This Report of Analysis contains the analytical result(s)for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report. Where
sampling is conducted by the client, results relate to the accuracy of the information provided, and as the
samples are received.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace")
Laboratory Quality Manual, standard operating procedures (SOPs), and Pace policies. Any exceptions to
the TNI standards, the Laboratory Quality Manual, SOPs or policies are qualified on the results page or
discussed below.
Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI
scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2-
dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC
Walkley-Black, Biological Tissue: All, Non-Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7,
Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320
B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal
Coliform Colilert-18, PFAS by Isotope Dilution SOP.
Pace is a DoD/DoE and TNI accredited laboratory; however, Pace is not accredited for PFAS Direct
Aqueous Injection or Method D8421.
LL Fig 1631E
MS/MSD for batch 79052 and parent sample YF21085 ( 2023014935)failed. No additional volume
available for reanalysis. Client contacted and we were instructed to narrate and report results.
YF21085-001 (2023014935) (Run 1) (Analysis Batch 79659) (Prep Batch 79052)
If you have any questions regarding this report, please contact the Pace Project Manager listed on the
cover page.
Pace Analytical Services,LLC(formerly Shealy Environmetal Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172(803)791-9700 Fax[phone] www.pacelabs.com
Page 2 of 23

PACE ANALYTICAL SERVICES , LLC 20 of 41
Sample Summary
Duke Energy
Lot Number: YF21085
Project Name: Marshall Quarterly Stormwater
Project Number: J23060390
Sample Number Sample ID Matrix Date Sampled Date Received
001 2023014935 Aqueous 06/19/2023 1115 06/21/2023
002 2023014936 Aqueous 06/19/2023 1125 06/21/2023
003 2023014937 Aqueous 06/19/2023 1300 06/21/2023
004 2023014941 Aqueous 06/19/2023 1230 06/21/2023
005 2023014942 Aqueous 06/19/2023 1300 06/21/2023
006 2023014943 Aqueous 06/19/2023 1315 06/21/2023
007 2023014944 Aqueous 06/19/2023 06/21/2023
(7 samples)
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Page 3 of 23

PACE ANALYTICAL SERVICES , LLC 21 of 41
Detection Summary
Duke Energy
Lot Number: YF21085
Project Name: Marshall Quarterly Stormwater
Project Number: J23060390
Sample Sample ID Matrix Parameter Method Result Q Units Page
001 2023014935 Aqueous Mercury(CVAFS) 1631E 6.54 S ng/L 5
002 2023014936 Aqueous Mercury(CVAFS) 1631E 12.8 ng/L 6
003 2023014937 Aqueous Mercury(CVAFS) 1631E 6.78 ng/L 8
004 2023014941 Aqueous Mercury(CVAFS) 1631E 5.44 ng/L 9
005 2023014942 Aqueous Mercury(CVAFS) 1631E 7.00 ng/L 10
(5 detections)
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Page 4 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0Q of 41
Description:2023014935 Matrix:Aqueous
Date Sampled:06/19/2023 1115 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0352 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 6.54 S 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
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Page 5 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0H of 41
Description:2023014936 Matrix:Aqueous
Date Sampled:06/19/2023 1125 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0409 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 12.8 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 6 of 23

Inorganic non-metals
Client:Duke Energy Laboratory ID:YF21085-0Q4 of 41
Description:2023014937 Matrix:Aqueous
Date Sampled:06/19/2023 1300 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 (S GT-HEM(n)1664B 1 06/25/2023 1156 CLJ 78501
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
SGT-HEM(non-polar material) 1664B ND 5.0 mg/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
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Page 7 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0Q6 of 41
Description:2023014937 Matrix:Aqueous
Date Sampled:06/19/2023 1300 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0414 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 6.78 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
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Page 8 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0Q6 of 41
Description:2023014941 Matrix:Aqueous
Date Sampled:06/19/2023 1230 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0420 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 5.44 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 9 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0Qf of 41
Description:2023014942 Matrix:Aqueous
Date Sampled:06/19/2023 1300 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0425 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E 7.00 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
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Page 10 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0Q6 of 41
Description:2023014943 Matrix:Aqueous
Date Sampled:06/19/2023 1315 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0431 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
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Page 11 of 23

Mercury (CVAFS)
Client:Duke Energy Laboratory ID:YF21085-0N of 41
Description:2023014944 Matrix:Aqueous
Date Sampled:06/19/2023 Project Name:Marshall Quarterly
Date Received:06/21/2023 Project Number:J23060390
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch
1 1631E 1 07/11/2023 0436 KAJ 07/01/2023 1104 79052
CAS Analytical
Parameter Number Method Result Q LOQ Units Run
Mercury(CVAFS) 7439-97-6 1631E ND 0.500 ng/L 1
LOQ=Limit of Quantitation B=Detected in the method blank E=Quantitation of compound exceeded the calibration range Q=Surrogate failure
ND=Not detected at or above the LOQ N=Recovery is out of criteria P=The RPD between two GC columns exceeds 40% L=LCS/LCSD failure
H=Out of holding time W=Reported on wet weight basis S=MS/MSD failure
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Page 12 of 23

30 of 41
QC Summary
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 13 of 23

Inorganic non-metals - MB 31 of41
Sample ID: YQ78501-001 Matrix: Aqueous
Batch:78501
Analytical Method: 1664B
Parameter Result Q Dil LOQ Units Analysis Date
SGT-HEM(non-polar material) ND 1 5.0 mg/L 06/25/2023 1156
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 14 of 23

Inorganic non-metals - LCS 32Of41
Sample ID: YQ78501-002 Matrix: Aqueous
Batch:78501
Analytical Method: 1664B
Spike
Amount Result %Rec
Parameter (mg/L) (mg/L) Q Dil %Rec Limit Analysis Date
SGT-HEM(non-polar material) 40 33 1 82 64-132 06/25/2023 1156
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 15 of 23

Mercury (CVAFS) - NIB
33 of 41
Sample ID: YQ79052-001 Matrix: Aqueous
Batch:79052 Prep Method:
Analytical Method: 1631E Prep Date: 07/01/2023 1104
Parameter Result Q Dil LOQ Units Analysis Date
Mercury(CVAFS) ND 1 0.500 ng/L 07/11/2023 1341
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 16 of 23

Mercury (CVAFS) - LCS
34 of 41
Sample ID: YQ79052-002 Matrix: Aqueous
Batch:79052 Prep Method:
Analytical Method: 1631E Prep Date: 07/01/2023 1104
Spike
Amount Result %Rec
Parameter (ng/L) (ng/L) Q Dil %Rec Limit Analysis Date
Mercury(CVAFS) 2.50 2.29 1 91 75-125 07/11/2023 1352
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 17 of 23

Mercury (CVAFS) - MS
35 of 41
Sample ID: YF21085-001MS Matrix: Aqueous
Batch:79052 Prep Method:
Analytical Method: 1631E Prep Date: 07/01/2023 1104
Sample Spike
Amount Amount Result %Rec
Parameter (ng/L) (ng/L) (ng/L) Q Dil %Rec Limit Analysis Date
Mercury(CVAFS) 6.54 2.50 9.72 N 1 127 71-125 07/11/2023 0358
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 18 of 23

Mercury (CVAFS) - MSD
36 of 41
Sample ID: YF21085-001MD Matrix: Aqueous
Batch:79052 Prep Method:
Analytical Method: 1631E Prep Date: 07/01/2023 1104
Sample Spike
Amount Amount Result %Rec %RPD
Parameter (ng/L) (ng/L) (ng/L) Q Dil %Rec %RPD Limit Limit Analysis Date
Mercury(CVAFS) 6.54 2.50 9.11 1 103 6.4 71-125 24 07/11/2023 0403
LOQ=Limit of Quantitation ND=Not detected at or above the LOQ N=Recovery is out of criteria
P=The RPD between two GC columns exceeds 40%
.=RSD is out of criteria +=RPD is out of criteria
Note: Calculations are performed before rounding to avoid round-off errors in calculated results
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) QC Data for Lot Number:YF21085
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Page 19 of 23

37 of 41
Chain of Custody
and
Miscellaneous Documents
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Page 20 of 23

PACE ANALYTICAL SERVICES , LLC 38 of 41
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106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
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106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 22 of 23

PACE ANALYTICAL SERVICES , LLC 40 of 41
DCti_Tltle: ENV-FRM-WCOL-0286 v02_S impies Receipt Checklist(SRC)
Effective Date:8/2/2022
Sample Receipt Checklist (SRC)
C'hcnt: T)Uf. *: Coalci Tn pecte(l Icy,'k r: CDR ; 6,11,23 Lot it: YF2105
M:ales of ircerpr ii_ n.Client • t s PS FedEx 'Other
II Yes 14 No 1. Were custody seals piesemt on the cooler? —
I. _ II No I2. If custody seals were present,were lie intact and tenbrokr.n?
l H Strip ID: ,A Chlorine Strip 11): ?+.A -- rested by. "
Original temperature upon receipt/Derived(Con-eetcrl)temperature upon receipt ?'oSolid Smap-Cup ID:
1.1.a /1.0 oC 24.3 /34? off- NA Y/NA nC. NA /NA ,c
Method:[J en peratnre Blank[❑?,�? i ist itort.c$ IR Gun ID: 3 m Cuii Correction Factor: n eC
Method of coolant: 4 Wet.ice LJ Ice Packs n Dry Ice Li Neer
Q Yes ❑Nn alA 3. Were a coolers tcccivcct at or below 6.00(7?lino,wns Prt►1 ecI Malinger irotified?
PM was Notified by phone i email/face-to-face(crcle one).
•Yoe No t 1 INA 4. Is the cotuuien sal courier's pacldtig slip attached to this Emu?
Q Yes, 5. Were proper cusluNody prncedilres(relingtlished/ieceived)followed?
Yes .N
Na 6. Were soli le I is listed on the COC and all sample containers?
•
0 Yes No 7. Was collection date&time listed on the COC and all sample containers?
Yes Nu 8.Did all container label infonitation(ID,dire.lime)agree with the COC?
,/ Yes Nu 9. Were tests to be performed listed on the COC'?
ElY r �N,o JO Did all samples arrive in the proper containers for each test and/or in good ccnditiou
es �1 (unbroken,lids on.etc.)?
: ✓'Yes MI No II.Was adequate sample volume available?
✓ Yes No i2.Mier-all samples received within the holding time or 48 hours.whichever comes(rsr
(✓Ives EINo 13.Were all samples containers accounted for?(No missing excess)
Yes ❑No zNA 14.Were VOA, R013c and RSK-17S samples free of bubbles=f a-size"(/"er 6nun in
diameter)in any of the VOA vials?
®i No Ir4 15.Were all DROAncals/utuzient samples received at a pH of<2?
Yes •No I J A 16.Were all cyanide oalilples received at a pH>12 and sulfide.samples received at a pH>9?
17.Were I applicable NHtrfl<NiyanideeplreuoL�62S.li603.3(-4 0 Sw L)samples ace of
]Yes ONu [JNA
residual chlorine'
Nu Ohl, 13.Was the quote number listed on the container label?It yes.Quote#
[]Yes [✓
Sample Preservation (Must be completed for any sample(s)incorrectly preserved or with irclttspace.)
Sample(s) xa _were received incorrectly preserved and were adjusted accordiagly
n sample receiving with NA la:f circle one: I I2SO4,11NO3.HCl.NaOH using SR 9 NA
Time of preservation NA - If more than one preservative is needed,please rote in the comments below.
ample(s) NA - were received with bubbles>6 rum in diarneter.
Samples(s) T1A were received with TRC>0.5 tng/L(If#19 is tun)and were
djltsted accordincly in sample receiving,with sodium thiosulfate(Na,S2O3)with Unique ID: NA
C..'Ji uiietils.
Qualtrax ID:56360 Pace Analytical Services,LLC Page.of 1
Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.)
106 Vantage Point Drive West Columbia,SC 29172 [phone] Fax[phone] www.pacelabs.com
Page 23 of 23

CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM 41 of 41
DUKE Analytical Laboratory Services Analytical Laboratory Use Only
Mail Code MGO3A2 (Building 7405) ! I Samples NC i Page 1 of 1
I r`a77 � //11 GZ , I I_l lZ. Originating — I DISTRIBUTION
13339 Hagers Ferry Rd J/�JC1V � ' �V From CH
ENERGY. N Huntersville. N.C. 28078 ! f' ORIGINAL to LAB.
IP- I I -� SAMPLE PROGRAM COPY to CLIENT
[phone] • i i '�� �;1 /,' �-1'$ Ground Water
.__ _ ___ Fax: [phone] v - KW tom- NPDES
;Vendor Other
t)Project Name 2)Phone No: /'
Marshall Quarterly Stormwater Plant ;
a !-PACE s Cooler Temp(C) RCRA Waste
—
E 3)Cllent 4)Fax No: If Preserv.:1=HCL
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Scott La Sala,Don Safrit PO 10614818 2=HrSO, 3=HNO?>
= 4=Ice_ 1--None 3 4 4 4,2 3 Field
E 5)8usiness Unit: 6)Project ID: 7)Mail Code: (� in `
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ajprgp.riate areas. a cv✓ m ,<, •-
Important: When specific accounting has been established and is not indicated abo•. C~ ; ca o. U
JLI a)
we need the following: 1) Enter correct accounting in all 5 accounting fields above, Or N t 0_ D
St
2) Provide correct accounting for Operating Unit and Process ID. m ern cn 2 o
LAB USE ONLY 12Chem 14Collection Information o ,_ 't l Z to cO . �I
"Lab ID �;= Desktop No. 13Sample Description or ID Date Time Signature v v 0 I a
to
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'rl 5,X.-1: E SW002 /4P /3�/ lS X , , 3 7.A
793� i o SW003 6/PA JI S X , , 3 7 oe
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i i Hg Dup(1/day or 10%) • 7Y //Do
q9=43 i Hg Field Blank(1/day or 10%) • �/pi, 13/5 / 2
9'9 1
211 Hg Trip Blank(1/day) —
Sampler Printed Name:
21)Relinquished By / Date/Time Acc. a22Requested�) j t � �sl��' '",..i...--::_,, Requested Turnaround
Relinquished By(--- /Datertime Accepted, By: Date/Time
E// /] /•� 14 Days
Relinquish Date/lme Accepted By: Datealme /
•7 Days a
Sealed/Locked By Date/Time Sealed/Lock Opened By Date/Time •48 Hr
24)Comments

February 27, 2024
Analytical Report

DUKE Analytical Laboratory 1 of 41
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex- MGO3A2
Phone: [phone] Fax: [phone]
Order Summary Report
Order Number: J24020651
Project Name: MARSHALL-NPDES STORMWATER
EquisTaskCode:
Customer Name(s): Scott LaSala, Don Safrit,Zakary Daniel
Customer Address: Marshall Steam Station
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Lab Contact: Jason Robinson Phone: [phone]
Report Authorized By: Date: 3/18/2024
(Signature)
J son Robinson
Program Comments:
Please contact the Program Manager(Jason Robinson)with any questions regarding this report.
Data Flags &Calculations:
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative.An estimation of
the uncertainty of measurement for the results in the report is available upon request.This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package,Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub-contracted Laboratory Results, Customer Specific Data Sheets, Reports&
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody(COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR)Certificate#248, South Carolina
(DHEC) Laboratory ID#99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions: 2of41
Collection
Sample ID Plant/Station Date and Time Collected By Sample Description
2024004750 MARSHALL 27-Feb-24 12:00 PM Scott LaSala SW002
2024004751 MARSHALL 27-Feb-24 12:10 PM Scott LaSala SW003
2024004752 MARSHALL 27-Feb-24 1:00 PM Scott LaSala SW007
2024004753 MARSHALL 27-Feb-24 11:05 AM Scott LaSala SW008
2024004754 MARSHALL 27-Feb-24 11:10 AM Scott LaSala SW011
2024004755 MARSHALL 27-Feb-24 11:00 AM Scott LaSala SW022
2024004756 MARSHALL 28-Feb-24 9:00 AM Scott LaSala SW025
2024004757 MARSHALL 27-Feb-24 1:00 PM Scott LaSala Hg Dup
2024004758 MARSHALL 27-Feb-24 1:10 PM Scott LaSala Hg Field Blank
2024004759 MARSHALL 27-Feb-24 Scott LaSala Hg Trip Blank
10 Total Samples

3 of 41
Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals ❑ Yes ❑ No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. ❑ Yes V No
All laboratory QA/QC requirements are acceptable. El Yes ❑ No
Report Sections Included:
❑� Job Summary Report Sub-contracted Laboratory Results
❑� Sample Identification ❑ Customer Specific Data Sheets, Reports,&Documentation
❑d Technical Validation of Data Package ❑ Customer Database Entries
❑� Analytical Laboratory Certificate of Analysis Chain of Custody
❑� Analytical Laboratory QC Report Electronic Data Deliverable(EDD)Sent Separately
Reviewed By: Jason Robinson Date: 3/18/2024

Certificate of Laboratory Analysis 4 of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW002 Sample#: 2024004750
Collection Date: 02/27/2024 12:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS
TOTAL RECOVERABLE METALS BY ICP - Q24030012
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 03/04/2024 11:57 CELLIO6
Zinc(Zn) 0.071 mg/L 0.015 1 EPA 200.7 R 4.4 03/04/2024 11:57 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q24030015
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Arsenic(As) 2.94 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Chromium (Cr) 5.91 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Copper(Cu) 7.84 ug/L 2 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Lead(Pb) 2.95 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Nickel(Ni) 7.87 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Selenium (Se) 1.27 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 03/04/2024 17:39 SNEGLIA
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 60 mg/L 6 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 5of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW003 Sample#: 2024004751
Collection Date: 02/27/2024 12:10 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS
TOTAL RECOVERABLE METALS BY ICP - Q24030012
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 03/04/2024 12:02 CELLIO6
Zinc(Zn) 0.094 mg/L 0.015 1 EPA 200.7 R 4.4 03/04/2024 12:02 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q24030015
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Arsenic(As) 5.64 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Chromium (Cr) 10.1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Copper(Cu) 9.57 ug/L 2 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Lead(Pb) 3.71 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Nickel(Ni) 6.82 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Selenium (Se) 1.92 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Thallium (TI)Low Level 0.226 ug/L 0.2 1 EPA 200.8 R 5.4 03/04/2024 17:48 SNEGLIA
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 85 mg/L 7.6 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 6of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW007 Sample#: 2024004752
Collection Date: 02/27/2024 01:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
OIL AND GREASE IN WATER-SOLID PHASE EXTRACTION-(Analysis Performed by Eurofins/Frontier Global Sciences)
Vendor Parameter Complete Vendor Method V_Eurofins
MERCURY IN WATER(AVERAGE) -
Mercury Average 1.40 ng/L 0.5 1 Calculation
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS
TOTAL RECOVERABLE METALS BY ICP - Q24030012
Boron(B) <0.05 mg/L 0.05 1 EPA 200.7 R 4.4 03/04/2024 12:06 CELLIO6
Zinc(Zn) 0.054 mg/L 0.015 1 EPA 200.7 R 4.4 03/04/2024 12:06 CELLIO6
TOTAL RECOVERABLE METALS BY ICP-MS - Q24030015
Antimony(Sb) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Arsenic(As) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Beryllium (Be) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Chromium (Cr) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Copper(Cu) <2 ug/L 2 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Lead(Pb) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Nickel(Ni) 1.42 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Selenium (Se) 1.15 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Silver(Ag)Low Level <0.3 ug/L 0.3 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Thallium (TI)Low Level <0.2 ug/L 0.2 1 EPA 200.8 R 5.4 03/04/2024 17:56 SNEGLIA
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS <2.5 mg/L 2.5 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 7of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW008 Sample#: 2024004753
Collection Date: 02/27/2024 11:05 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 23 mg/L 3.2 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 8of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW011 Sample#: 2024004754
Collection Date: 02/27/2024 11:10 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
TOTAL RECOVERABLE METALS BY ICP-MS - Q24030015
Cadmium (Cd) <1 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 18:04 SNEGLIA
Chromium (Cr) 3.27 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 18:04 SNEGLIA
Lead(Pb) 2.74 ug/L 1 1 EPA 200.8 R 5.4 03/04/2024 18:04 SNEGLIA
Zinc(Zn) 99.0 ug/L 5 1 EPA 200.8 R 5.4 03/04/2024 18:04 SNEGLIA
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 47 mg/L 6 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 9of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW022 Sample#: 2024004755
Collection Date: 02/27/2024 11:00 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 10 mg/L 2.5 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 10of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: SW025 Sample#: 2024004756
Collection Date: 02/28/2024 09:00 AM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
Total Suspended Solids-Low RL 2.5 - Q24020488
TSS 5.7 mg/L 5.4 1 SM2540D 2015 02/29/2024 07:30 HHOOGKA

Certificate of Laboratory Analysis 11 of 41
This report shall not be reproduced, except in full.
Order# J24020651
Site: Hg Dup Sample#: 2024004757
Collection Date: 02/27/2024 01:00 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS

Certificate of Laboratory Analysis 12 of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: Hg Field Blank Sample#: 2024004758
Collection Date: 02/27/2024 01:10 PM Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS

Certificate of Laboratory Analysis 13of41
This report shall not be reproduced, except in full.
Order# J24020651
Site: Hg Trip Blank Sample#: 2024004759
Collection Date: 02/27/2024 Matrix: NPDES
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
MERCURY IN WATER-(Analysis Performed by Eurofins/Frontier Global Sciences)
Mercury Complete Vendor Method v_EUROFINS

Certificate of Laboratory Analysis 14 of41
This report shall not be reproduced, except in full.
Order# J24020651
Level II QC Summary
Q24030012 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank #1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Boron(B) -0.00516 -0.00516 mg/L 1 0.05 < 1/2 RDL
Zinc(Zn) -0.000032 -0.000032 mg/L 1 0.015 < 1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Boron(B) 4.78 4.78 mg/L 1 5 95.7 85 115 -
Zinc(Zn) 4.92 4.92 mg/L 1 5 98.4 85 115 -
MS # 1 Parent Sample: J24010148 -- 2024000561
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Boron(B) 5.53 5.53 mg/L 1 5 96.9 70 130 -
Zinc(Zn) 4.89 4.89 mg/L 1 5 97.7 70 130 -
MSD # 1 Parent Sample: J24010148 -- 2024000561
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Boron(B) 5.54 5.54 mg/L 1 5 97.1 70 130 0.217 -
Zinc(Zn) 4.89 4.89 mg/L 1 5 97.8 70 130 0.184 -

Certificate of Laboratory Analysis 15of41
This report shall not be reproduced, except in full.
Order# J24020651
Level II QC Summary
Q24030015 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
Antimony(Sb) -0.203 -0.203 ug/L 1 1 < 1/2 RDL
Arsenic(As) 0.017 0.017 ug/L 1 1 <1/2 RDL
Beryllium (Be) -0.011 -0.011 ug/L 1 1 < 1/2 RDL
Cadmium (Cd) 0.001 0.001 ug/L 1 1 <1/2 RDL
Chromium (Cr) 0.041 0.041 ug/L 1 1 <1/2 RDL
Copper(Cu) -0.003 -0.003 ug/L 1 2 < 1/2 RDL
Lead (Pb) 0.004 0.004 ug/L 1 1 < 1/2 RDL
Nickel(Ni) 0.006 0.006 ug/L 1 1 < 1/2 RDL
Selenium (Se) -0.006 -0.006 ug/L 1 1 < 1/2 RDL
Silver(Ag)Low Level 0.001 0.001 ug/L 1 0.3 <1/2 RDL
Thallium(TI)Low Level -0.02 -0.02 ug/L 1 0.2 <1/2 RDL
Zinc(Zn) 0.271 0.271 ug/L 1 5 <1/2 RDL
LCS #1
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Antimony(Sb) 49.9 49.9 ug/L 1 50 99.9 85 115 -
Arsenic(As) 48 48 ug/L 1 50 96.1 85 115 -
Beryllium (Be) 49.6 49.6 ug/L 1 50 99.1 85 115 -
Cadmium (Cd) 51 51 ug/L 1 50 102 85 115 -
Chromium (Cr) 51.5 51.5 ug/L 1 50 103 85 115 -
Copper(Cu) 51.6 51.6 ug/L 1 50 103 85 115 -
Lead (Pb) 50.7 50.7 ug/L 1 50 101 85 115 -
Nickel(Ni) 51.1 51.1 ug/L 1 50 102 85 115 -
Selenium (Se) 47.6 47.6 ug/L 1 50 95.2 85 115 -
Silver(Ag)Low Level 52.8 52.8 ug/L 1 50 106 85 115 -
Thallium(TI)Low Level 49.4 49.4 ug/L 1 50 98.8 85 115 -
Zinc(Zn) 49 49 ug/L 1 50 98 85 115 -
MS # 1 Parent Sample: J24010067 -- 2024000253
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Antimony(Sb) 48.2 48.2 ug/L 1 50 96.4 70 130 -
Arsenic(As) 50.3 50.3 ug/L 1 50 98.6 70 130 -
Beryllium (Be) 48.1 48.1 ug/L 1 50 96.3 70 130 -
Cadmium (Cd) 50.3 50.3 ug/L 1 50 101 70 130 -
Chromium (Cr) 50.3 50.3 ug/L 1 50 99 70 130 -
Copper(Cu) 52.3 52.3 ug/L 1 50 100 70 130 -
Lead (Pb) 52.1 52.1 ug/L 1 50 103 70 130 -
Nickel(Ni) 51.3 51.3 ug/L 1 50 98.8 70 130 -
Selenium (Se) 49 49 ug/L 1 50 96 70 130 -
Silver(Ag)Low Level 51.9 51.9 ug/L 1 50 104 70 130 -

Certificate of Laboratory Analysis 16of41
This report shall not be reproduced, except in full.
Order# J24020651
Level II QC Summary
Q24030015 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1 Parent Sample: J24010067 -- 2024000253
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL Qualifier
Thallium(TI)Low Level 50.5 50.5 ug/L 1 50 101 70 130 -
Zinc(Zn) 58.3 58.3 ug/L 1 50 101 70 130 -
MSD #1 Parent Sample: J24010067 -- 2024000253
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Antimony(Sb) 48.6 48.6 ug/L 1 50 97.1 70 130 0.757 -
Arsenic(As) 49.7 49.7 ug/L 1 50 97.3 70 130 1.32 -
Beryllium (Be) 46.7 46.7 ug/L 1 50 93.3 70 130 3.15 -
Cadmium (Cd) 49.8 49.8 ug/L 1 50 99.6 70 130 0.983 -
Chromium (Cr) 50.5 50.5 ug/L 1 50 99.4 70 130 0.476 -
Copper(Cu) 51.6 51.6 ug/L 1 50 98.8 70 130 1.43 -
Lead (Pb) 51.6 51.6 ug/L 1 50 102 70 130 0.825 -
Nickel(Ni) 51.1 51.1 ug/L 1 50 98.3 70 130 0.471 -
Selenium (Se) 48.6 48.6 ug/L 1 50 95.3 70 130 0.734 -
Silver(Ag)Low Level 51.6 51.6 ug/L 1 50 103 70 130 0.528 -
Thallium(TI)Low Level 50.2 50.2 ug/L 1 50 100 70 130 0.541 -
Zinc(Zn) 67.5 67.5 ug/L 1 50 119 70 130 16.6 -

Certificate of Laboratory Analysis 17of41
This report shall not be reproduced, except in full.
Order# J24020651
Level II QC Summary
Q24020488 TSS_LL Total Suspended Solids-Low RL 2.5
Blank # 1
Parameter Measured Final Units: Di! RDL Relative Concentration Qualifier
TSS 0 mg/L 1 2.5 <1/2 RDL
Duplicate # 1 Parent Sample: J24020651 -- 2024004756
Parameter Measured Final Units: Di! Limit Range RPD Qualifier
TSS 5.7 mg/L 1 0 -
LCS #1
Parameter Measured Final Units: Di! Spike % Recovery LCL UCL Qualifier
TSS 96.4 mg/L 1 100 96.4 90 110 -

%% eurofins 18of41
Environment Testing
ANALYTICAL REPORT
PREPARED FOR
Attn: Jason Robinson
Duke Energy Corporation
13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Generated 3/15/2024 5:47:58 PM
N
JOB DESCRIPTION
J24020651 Marshall Quarterly Stormwater
JOB NUMBER
680-247380-1
Eurofins Savannah
5102 LaRoche Avenue
Savannah GA 31404
my
See page two for job notes and contact information. Page 1 of 23 "wi; E O L.

19 of 41
_441 u
Eurofins Savannah
Job Notes
This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the
samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this
page.
The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the
methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written
approval of the laboratory. All questions should be directed to the Eurofins Environment Testing Southeast, LLC Project
Manager.
Authorization
Generated
3/15/2024 5:47:58 PM
Authorized for release by
Todd Rea,Project Manager
[e-mail]
[phone]
Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast,LLC,a company within Eurofins Environment Testing Group of Companies
Page 2 of 23 3/15/2024

20 of 41
Client: Duke Energy Corporation Laboratory Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Table of Contents U
Cover Page 1
Table of Contents 3
Definitions/Glossary 4
Case Narrative 5
Sample Summary 6
Detection Summary 7
Client Sample Results 8
QC Sample Results 14
QC Association Summary 16
Lab Chronicle 17
Method Summary 19
Certification Summary 20
Chain of Custody 21
Receipt Checklists 22
Eurofins Savannah
Page 3 of 23 3/15/2024

Definitions/Glossary 21 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Glossary
Abbreviation These commonly used abbreviations may or may not be present in this report.
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
PRES 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
Eurofins Savannah
Page 4 of 23 3/15/2024

22 of 41
Case Narrative
Client: Duke Energy Corporation Job ID: 680-247380-1
Project: J24020651 Marshall Quarterly Stormwater
Job ID: 680-247380-1 Eurofins Savannah
Job Narrative
680-247380-1 4
Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification Summary
Page unless otherwise noted under the individual analysis. Data qualifiers are applied to indicate exceptions. Noncompliant
quality control (QC)is further explained in narrative comments.
• Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations,to
demonstrate precision and accuracy at a batch level, a LCS/LCSD may be performed, unless otherwise specified in the
method.
• Surrogate and/or isotope dilution analyte recoveries(if applicable)which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in the narrative.
Regulated compliance samples(e.g. SDWA, NPDES)must comply with the associated agency requirements/permits.
Receipt
The samples were received on 3/1/2024 10:28 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 time was 0.8°C.
Metals
Method 1631 E: The following samples were diluted due to the nature of the sample matrix:2024004750(680-247380-1)and
2024004751 (680-247380-2). Elevated reporting limits(RLs)are provided. The samples appears to be dirty and cloudy.
No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page.
General Chemistry
No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page.
Eurofins Savannah
Page 5 of 23 3/15/2024

Sample Summary 23 of 41
Client: Duke Energy Corporation Job ID:680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Lab Sample ID Client Sample ID Matrix Collected Received
680-247380-1 2024004750 Water 02/27/24 12:00 03/01/24 10:28
680-247380-2 2024004751 Water 02/27/24 12:10 03/01/24 10:28
680-247380-3 2024004752 Water 02/27/24 13:00 03/01/24 10:28
680-247380-4 2024004757 Water 02/27/24 13:00 03/01/24 10:28 0
680-247380-5 2024004758 Water 02/27/24 13:10 03/01/24 10:28
680-247380-6 2024004759 Water 02/27/24 00:00 03/01/24 10:28
Eurofins Savannah
Page 6 of 23 3/15/2024

Detection Summary 24 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004750 Lab Sample ID: 680-247380-1
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Mercury 24 2.5 ng/L 1 1631E Total/NAillli
Client Sample ID: 2024004751 Lab Sample ID: 680-247380-2 El
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Mercury 34 2.5 ng/L 1 1631E Total/NA
Client Sample ID: 2024004752 Lab Sample ID: 680-247380-3
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Mercury 1.4 0.50 ng/L 1 1631E Total/NA
Client Sample ID: 2024004757 Lab Sample ID: 680-247380-4
Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type
Mercury 1.4 0.50 ng/L 1 1631E Total/NA
Client Sample ID: 2024004758 Lab Sample ID: 680-247380-5
LNo Detections.
Client Sample ID: 2024004759 Lab Sample ID: 680-247380-6
[No Detections.
This Detection Summary does not include radiochemical test results.
Eurofins Savannah
Page 7 of 23 3/15/2024

Client Sample Results 25 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004750 Lab Sample ID: 680-247380-1
Date Collected: 02/27/24 12:00 Matrix:Water
Date Received: 03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 24 2.5 ng/L 03/01/24 15:35 03/05/24 10:34 1
U
Eurofins Savannah
Page 8 of 23 3/15/2024

Client Sample Results 26 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004751 Lab Sample ID: 680-247380-2
Date Collected: 02/27/24 12:10 Matrix:Water
Date Received: 03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury 34 2.5 ng/L 03/01/24 15:35 03/05/24 10:42 1
U
Eurofins Savannah
Page 9 of 23 3/15/2024

Client Sample Results 27 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004752 Lab Sample ID: 680-247380-3
Date Collected:02/27/24 13:00 Matrix:Water
Date Received: 03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
LMercury 1.4 0.50 ng/L 03/01/24 15:35 03/05/24 11:05 1
General Chemistry
[Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac ITI
TPH(SGT-HEM)(1664B) ND 2.6 mg/L 03/15/24 05:05 03/15/24 09:58 1
Eurofins Savannah
Page 10 of 23 3/15/2024

Client Sample Results 28 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004757 Lab Sample ID: 680-247380-4
Date Collected:02/27/24 13:00 Matrix:Water
Date Received:03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
LMercury 1.4 0.50 ng/L 03/01/24 15:35 03/05/24 11:13 1
U
Eurofins Savannah
Page 11 of 23 3/15/2024

Client Sample Results 29 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004758 Lab Sample ID: 680-247380-5
Date Collected:02/27/24 13:10 Matrix:Water
Date Received:03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.50 ng/L 03/01/24 15:35 03/05/24 11:20 1
U
Eurofins Savannah
Page 12 of 23 3/15/2024

Client Sample Results 30 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004759 Lab Sample ID: 680-247380-6
Date Collected:02/27/24 00:00 Matrix:Water
Date Received:03/01/24 10:28
Method: EPA 1631E-Mercury, Low Level (CVAFS)
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.50 ng/L 03/01/24 15:35 03/05/24 13:40 1
U
Eurofins Savannah
Page 13 of 23 3/15/2024

QC Sample Results 31 of 41
Client: Duke Energy Corporation Job ID:680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Method: 1631E - Mercury, Low Level (CVAFS)
Lab Sample ID: MB 400-663239/3-A Client Sample ID: Method Blank
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
Mercury ND 0.50 ng/L 03/04/24 16:00 03/05/24 09:33 1
Lab Sample ID: LCS 400-663239/4-A Client Sample ID: Lab Control Sample
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239 8
Spike LCS LCS %Rec
Analyte Added Result Qualifier Unit D %Rec Limits
Mercury 5.00 5.13 ng/L 103 79.121
Lab Sample ID: LCSD 400-663239/5-A Client Sample ID: Lab Control Sample Dup
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
Spike LCSD LCSD %Rec RPD
Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit
Mercury 5.00 5.13 ng/L 103 79-121 0 20
Lab Sample ID: 660-134806-0-1-B MS Client Sample ID: Matrix Spike
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
Sample Sample Spike MS MS %Rec
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits
Mercury 47 25.0 68.7 ng/L 88 71-125
Lab Sample ID: 660-134806-0-1-C MSD Client Sample ID: Matrix Spike Duplicate
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
Sample Sample Spike MSD MSD %Rec RPD
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit
Mercury 47 25.0 69.3 ng/L 90 71_125 1 24
Lab Sample ID: 670-35642-L-1-B MS Client Sample ID: Matrix Spike
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
Sample Sample Spike MS MS %Rec
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits
Mercury 9.6 25.0 33.0 ng/L 94 71_125
Lab Sample ID: 670-35642-L-1-C MSD Client Sample ID: Matrix Spike Duplicate
Matrix:Water Prep Type:Total/NA
Analysis Batch: 663321 Prep Batch: 663239
Sample Sample Spike MSD MSD %Rec RPD
Analyte Result Qualifier Added Result Qualifier Unit D %Rec Limits RPD Limit
Mercury 9.6 25.0 32.5 ng/L 91 71_125 2 24
Eurofins Savannah
Page 14 of 23 3/15/2024

QC Sample Results 32 of 41
Client: Duke Energy Corporation Job ID:680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Method: 1664B - HEM and SGT-HEM
Lab Sample ID: MB 680-827673/1-A Client Sample ID: Method Blank
Matrix:Water Prep Type:Total/NA
Analysis Batch: 827753 Prep Batch: 827673
MB MB
Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac
TPH(SGT-HEM) ND 5.0 mg/L 03/15/24 05:05 03/15/24 09:58 1
Lab Sample ID: LCS 680-827673/2-A Client Sample ID: Lab Control Sample
Matrix:Water Prep Type:Total/NA
Analysis Batch: 827753 Prep Batch: 827673 8
Spike LCS LCS %Rec
Analyte Added Result Qualifier Unit D %Rec Limits
TPH(SGT-HEM) 20.0 17.1 mg/L 86 64-132
Lab Sample ID: LCSD 680-827673/3-A Client Sample ID: Lab Control Sample Dup
Matrix:Water Prep Type:Total/NA
Analysis Batch: 827753 Prep Batch: 827673
Spike LCSD LCSD %Rec RPD
Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit
TPH(SGT-HEM) 20.0 17.5 mg/L 88 64_132 2 34
Eurofins Savannah
Page 15 of 23 3/15/2024

QC Association Summary 33 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Metals
Prep Batch: 663239
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
680-247380-1 2024004750 Total/NA Water 1631 E
680-247380-2 2024004751 Total/NA Water 1631 E
680-247380-3 2024004752 Total/NA Water 1631 E
680-247380-4 2024004757 Total/NA Water 1631 E
680-247380-5 2024004758 Total/NA Water 1631 E
680-247380-6 2024004759 Total/NA Water 1631 E
MB 400-663239/3-A Method Blank Total/NA Water 1631 E
LCS 400-663239/4-A Lab Control Sample Total/NA Water 1631 E
LCSD 400-663239/5-A Lab Control Sample Dup Total/NA Water 1631 E
660-134806-0-1-B MS Matrix Spike Total/NA Water 1631E 9
660-134806-0-1-C MSD Matrix Spike Duplicate Total/NA Water 1631E
670-35642-L-1-B MS Matrix Spike Total/NA Water 1631 E
670-35642-L-1-C MSD Matrix Spike Duplicate Total/NA Water 1631E
Analysis Batch:663321
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 7-
680-247380-1 2024004750 Total/NA Water 1631E 663239
680-247380-2 2024004751 Total/NA Water 1631E 663239
680-247380-3 2024004752 Total/NA Water 1631E 663239
680-247380-4 2024004757 Total/NA Water 1631E 663239
680-247380-5 2024004758 Total/NA Water 1631E 663239
680-247380-6 2024004759 Total/NA Water 1631E 663239
MB 400-663239/3-A Method Blank Total/NA Water 1631E 663239
LCS 400-663239/4-A Lab Control Sample Total/NA Water 1631E 663239
LCSD 400-663239/5-A Lab Control Sample Dup Total/NA Water 1631E 663239
660-134806-0-1-B MS Matrix Spike Total/NA Water 1631E 663239
660-134806-0-1-C MSD Matrix Spike Duplicate Total/NA Water 1631E 663239
670-35642-L-1-B MS Matrix Spike Total/NA Water 1631E 663239
670-35642-L-1-C MSD Matrix Spike Duplicate Total/NA Water 1631E 663239
General Chemistry
Prep Batch: 827673
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
680-247380-3 2024004752 Total/NA Water 1664B
MB 680-827673/1-A Method Blank Total/NA Water 1664B
LCS 680-827673/2-A Lab Control Sample Total/NA Water 1664B
LCSD 680-827673/3-A Lab Control Sample Dup Total/NA Water 1664B
Analysis Batch:827753
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
680-247380-3 2024004752 Total/NA Water 1664B 827673
MB 680-827673/1-A Method Blank Total/NA Water 1664B 827673
LCS 680-827673/2-A Lab Control Sample Total/NA Water 1664B 827673
LCSD 680-827673/3-A Lab Control Sample Dup Total/NA Water 1664B 827673
Eurofins Savannah
Page 16 of 23 3/15/2024

Lab Chronicle 34 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004750 Lab Sample ID: 680-247380-1
Date Collected:02/27/24 12:00 Matrix:Water
Date Received:03/01/24 10:28
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 8 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN
Total/NA Analysis 1631E 1 663321 03/05/24 10:34 VLC EET PEN
Instrument ID: LeFou
Client Sample ID: 2024004751 Lab Sample ID: 680-247380-2
Date Collected: 02/27/24 12:10 Matrix:Water
Date Received: 03/01/24 10:28
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 8 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN 1 0
Total/NA Analysis 1631E 1 663321 03/05/24 10:42 VLC EET PEN
Instrument ID: LeFou
Client Sample ID: 2024004752 Lab Sample ID: 680-247380-3
Date Collected: 02/27/24 13:00 Matrix:Water
Date Received:03/01/24 10:28
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 40 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN
Total/NA Analysis 1631E 1 663321 03/05/24 11:05 VLC EET PEN
Instrument ID: LeFou
Total/NA Prep 1664B 948 mL 500 mL 827673 03/15/24 05:05 TD EET SAV
Total/NA Analysis 1664B 1 827753 03/15/24 09:58 TD EET SAV
Instrument ID: NoEquip
Client Sample ID: 2024004757 Lab Sample ID: 680-247380-4
Date Collected: 02/27/24 13:00 Matrix:Water
Date Received:03/01/24 10:28
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 40 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN
Total/NA Analysis 1631E 1 663321 03/05/24 11:13 VLC EET PEN
Instrument ID: LeFou
Client Sample ID: 2024004758 Lab Sample ID: 680-247380-5
Date Collected: 02/27/24 13:10 Matrix:Water
Date Received:03/01/24 10:28
FBatch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 40 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN
Total/NA Analysis 1631E 1 663321 03/05/24 11:20 VLC EET PEN
Instrument ID: LeFou
Eurofins Savannah
Page 17 of 23 3/15/2024

Lab Chronicle 35 of 41
Client: Duke Energy Corporation Job ID:680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Client Sample ID: 2024004759 Lab Sample ID: 680-247380-6
Date Collected: 02/27/24 00:00 Matrix:Water
Date Received: 03/01/24 10:28
Batch Batch Dil Initial Final Batch Prepared
Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab
Total/NA Prep 1631E 40 mL 40 mL 663239 03/01/24 15:35 VLC EET PEN
Total/NA Analysis 1631E 1 663321 03/05/24 13:40 VLC EET PEN
Instrument ID: LeFou
'This procedure uses a method stipulated length of time for the process. Both start and end times are displayed.
Laboratory References:
EET PEN=Eurofins Pensacola,3355 McLemore Drive,Pensacola,FL 32514,TEL[phone]
EET SAV=Eurofins Savannah,5102 LaRoche Avenue,Savannah,GA 31404,TEL[phone]
10
Eurofins Savannah
Page 18 of 23 3/15/2024

Method Summary 36 of 41
Client: Duke Energy Corporation Job ID:680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Method Method Description Protocol Laboratory
1631E Mercury,Low Level(CVAFS) EPA EET PEN
1664B HEM and SGT-HEM 1664B EET SAV
1631E Preparation,Mercury,Low Level EPA EET PEN
1664B HEM and SGT-HEM (Aqueous) 1664B EET SAV
Protocol References:
1664B=EPA-821-98-002
EPA=US Environmental Protection Agency
Laboratory References:
EET PEN=Eurofins Pensacola,3355 McLemore Drive,Pensacola,FL 32514,TEL[phone]
EET SAV=Eurofins Savannah,5102 LaRoche Avenue,Savannah,GA 31404,TEL[phone]
m
Eurofins Savannah
Page 19 of 23 3/15/2024

Accreditation/Certification Summary 37 of 41
Client: Duke Energy Corporation Job ID: 680-247380-1
Project/Site:J24020651 Marshall Quarterly Stormwater
Laboratory: Eurofins Savannah
The accreditations/certifications listed below are applicable to this report.
Authority Program Identification Number Expiration Date
North Carolina(WW/SW) State 269 12-31-24
Laboratory: Eurofins Pensacola
The accreditations/certifications listed below are applicable to this report.
Authority Program Identification Number Expiration Date
North Carolina(WW/SW) State 314 12-31-24
Eurofins Savannah
Page 20 of 23 3/15/2024

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39 of 41
Login Sample Receipt Checklist
Client:Duke Energy Corporation Job Number:680-247380-1
Login Number:247380 List Source:Eurofins Savannah
List Number: 1
Creator:Johnson,Corey M
Question 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 14
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 Savannah
Page 22 of 23 3/15/2024

40 of 41
Login Sample Receipt Checklist
Client:Duke Energy Corporation Job Number:680-247380-1
Login Number:247380 List Source:Eurofins Pensacola
List Number:2 List Creation:03/05/24 09:14 AM
Creator:Chea,Vanda L
Question 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 14
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 Savannah
Page 23 of 23 3/15/2024

41 of 41
- - CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
eti DUKE Analytical Laboratory Services
— —i r — — — — — — — — — —•—Analytical
Laboratory
Use Only
- - - - - - - - - - -,
i i Analytical Latory O Mail Code MGO3A2 (Building 7405) I 1 p/ Samples NC I Page 1 of 1
13339 Hagers Ferry Rd U ZO bs�
1 f 1 7�5 Originating OSC_ j DISTRIBUTION
ENERGY M Huntersville, N.C. 28078 —� Z CI; — ORIGINAL to LAB,
[phone] SAMPLE PROGRAM COPY to CLIENT
- - - - - - S
Fax: [phone] i ! TC 2 2-Q Z i4 1 Svj r Ground Water
— — — — — — — — — — NPDES_
1)Project Name Vendor Other
2)Phone No:
Marshall Quarterly Stormwater ! 1.'T
�arvFiNS Plant
o Cooler Temp(C) RCRA Waste
E 3)Cilent 4)Fax No:
0
o !P PG 10865759 ~''Preserv.:1=HIC
Scott La Sala,Don Safrit
j 2=HASO4 3=HN
5)Business Unit: - _ 4=1ke- 5=etone 3 4 4 4.,2 3 Reid6)Project ID: 7)Mail Code: —'•—"—"—"—"— --
LO_O_K'.__ N d -a V w
8)Operating Unit: 9)Activity ID: 10 Process ID C L
'' d a 2 H
L��tomer�9 t omple ali 3
appropriate,areas a m m . N =_
J N f0
)mnortant: When specific accounting has been established and is not indicated above ¢i-1 Cl) a o
we need the following: 1) Enter correct accounting in all 5 accounting fields above, or e U
c to p Q U O
2) Provide correct accountinn for Operating Unit and Process ID. — N Q�� w
W 2 () -
LAB USE ONLY 12Chem d W 2 O
! Chem "Collection Information E — ° _ ~
"Lab ID !L 13 V) H I
Desktop No. Sam le Description or ID I
P P Date Time Signet re o v1�v ~ I
,7 _
2 02�i i.ct.
0.L4 �i E SW002 2(2747/10�
• X 1 1 2 7d
tS 1 i ou
SW003 � // ��/D X , z 7�
'2- i 2 SW007 1� �,�� 7 .Z 3
I.` X i , 2 2
3 i o SW008 ��W X 30
7
)' Q i 4Sy1R SW011 0/jj i�rllu/-r ;. x 7 9
a x
3 • SW022 (J1.1L1I/ O / ,-�
x , ys
45i0 i SW025 •�' , 090
./ X 1 .2 1
/‘fialf i i�- �..,...
-c-+ I Hg Dup(1/day or 10%) l� j _____#. 2
ASS I• Hg Field Blank(1/day or 10%) V,�2 /3/�
2
--1 i Hg Trip BIa k(1/day --
Sampler Printed Name: (�
i ��y- J
21)Relinqulshed Da m '� / -
/1 ,4(+Accep 1 'DaterTlme
Relinquish y / / t,lj l/�?t,LJ�-L 2 ?/1y '3�� 22Requested Turnaround
Date mOe AcceP /ted 8Y Date/Tim /
:>_ lz 14 Days
Relinquished /// ate/T e
�'/ j" Accepted By: C Date/Time
'7 Days
Sealed/Locked By Date/Time Sealed/Lock Opened By Date/Time
•48 Hr
24)Comments

APPENDIX B:
SEDIMENT & METALS FILTER
DIKE INFORMATION

H a l e n H a rdy°4" Call to order: s� www.HalenHardy.com
814-822-2004 [e-mail]
4 1 � R` (,_.G -.-.h '� � --a...,-..:` .[ i -'i L-'.Tt row vow '�1k �`i�.`i �£,•-�•`�•a{
7.
~`l -ram , F
' , - '.:iiS lam`-+iw ,.c,—
4.
.r` k Pl ,ram - .i- _ _ -- - t+ y I• �'- -
/? \ .+r` I -1. J "mot
•
is _ y
�j�'t - _ '.��',3C�- -(Ly',-ems ..w f t `> .'� t ...-
•
rY ,` `r' 4: _ - ! _� - • i 'C'L1 ` ' ,- 40.E ,..'
4.., 0....*Ia,,,,--.... ....--....,,,,,t,3. Ix..,--- +.4-.• -k - • ' it SPL077 - ...,.0 ,,,-ye--^:i 7-
-..,,,,,_ -_
-.
I , _
' j ✓ -, _ 10' long Spilltration / --
'. Husky Filter Dike I," 1,�!
YP .
j' �e�i`. .. 4 1,`
r_
x
�r j Ili --'11,
. --iti,' •
, 4 ! . -•-.- 7 • V.
0 S i - "Spilltration° products allow us to do
• 1 • L', our jobs better.A huge upgrade!"
-Senior Environmental Coordinator
•
SPILLTRATION® HUSKY Superior Filtration Performance:Spilltration' Husky
fibers filter oily sheen and TSS down to 53 microns.
FILTER DIKES Eco-Friendly Materials: Made from 100% recycled
fibers.
Filter sheen,silt and sediment from stormwater in
./ Engineered for the Outdoors: Extremely UV-
and around ditches,storm drains and outfalls.
resistant and ideal for long-term outdoor use.
i Call 814-822-2004 or visit us online ©2024 HalenHardy,All Rights Reserved.
at www.HalenHardy.com. Please recycle this publication.
2 E

,i .s•.:v� �ss/ r*- .err • " ^y� it , ,y _ -C;,• "Pr
^' f'y�•k y�ja/Y' t6le .,,•.. '-''!•'i W4;4e Y "''..' • `.. � !'� „frk• ~ � 'V1wt'..� • 4i • y
.��.i •,,,a,... ':�ari`��?'' � w- • ,. '� "� -.oaf
•
)* • ' .-'--1-. 44%_11,,,•: - .., , .11-: •
'44
•
... • _ /p - �I. _Ac �IW � •:r z r! __ _ RL• •t,�W 1" v44' •' ,lag 'Gt4 te y•
•
40k•
� SPL088
-- Rf ` �y -- , $ N "..• 13'long with
<» ; ,-£„t ,�' ak - ropes and clips.
- >;'r`� Y c lyy j: _ a ,mac t
•
•
_•/lY•r
a 1 {' ram. v • 4"' i 'S. 3'"� 4 �' f
71011",49.
•,ilia ,y,,�►/ Y a. '$,';.� F " / •,, q �� s it
^1 y ka p,fry
SPL6y7 # A
Stake down using
Yr ' s V
Sn,cho'r spikes. 1 • a
� •
•_� SPL088
' •
• s. Anchor using attached
�. !~ qy�{+ rope and clips.
Durable Construction:Made of UV-resistant Spilltration' SPECS 10'LONG 13'LONG
Husky fibers,our Filter Dikes stay on the job as long as
needed without degrading or shedding. mfn SPL077 SPL088
dimensions 5.5"D x 10'L 5.5" D x 13' L
Flexible Sizing&Secure Setup:Available in 10' long(SPL077)
or 13'long(SPL088)options.SPL088 includes rope and clips absorbency 8.1 gal/each 10.5 gal/each
for additional ways to anchor. sold as 3 per case 2 per case
Effective Filtration:Filters oil,sediment,trash and debris.
TSS Reduction:Great for lowering Total Suspended Solids Try Spilltration products for 30 days. If you're
(TSS)at or around outfalls,enhancing water quality and not completely satisfied,just let us know and we'll H H
compliance with environmental standards. either fix your problem(free of charge)or refund HALE YES
your money.100%satisfaction guaranteed! • E
0 ' ID
j. Call 814-822-2004 or visit us online 0 2024 HalenHardy',All Rights Reserved.
at www.HalenHardy.com. Please recycle this publication.
0 E

0 HalenHard ADVANCED STORMWATER
Y FILTRATION SOLUTIONS
' Spilltration° HardyChar
�. '' Heavy Metal Filter Dikes
I r J
, STORMWATER POLLUTION PREVENTION
'� - " ' t` Rain,snowmelt,and water from construction,outdoor material
'y
`y7y, storage,washing or cleaning operations can carry pollutants into
1 . "� h, �,a„ storm drains,vaults,catch basins,ditches,and swales.That can
3 ,4 4 '- •"^44 °� , lead to big fines for violating Stormwater permit limitations.
DURABLE AND EFFECTIVE FILTRATION
UV-Resistant Spilltration®HardyChar Heavy Metal Filter Dikes are
designed for long-term deployment(up to one year)to help simplify
'Pk.: v ' *`,Alb 1 -- < ..;•. , ; maintenance and compliance efforts by filtering sediment,oils,
and metals in high-flow stormwater applications while allowing the
`� <� �,,��rA processed water to quickly continue to drain from paved areas.
' •
a f • ` � tf,' s
',. i 'r. l r INNOVATIVE FILTRATION MATERIALS
',.4. 41 , - _k ~ r ., ± Spilltration HardyChar Heavy Metal Filter Dikes utilize recycled,
'f-'" s =�/ �� "•.!" r "" ,"„ organic,biochar fillers to significantly reduce turbidity,TSS,metals,
44y ,, ;'� • `. ` - - +;,jam,, and other pollutants in discharged stormwater.
atv .'�"�, G �� �`'Jx�A 4 - J;F FLEXIBLE AND CONVENIENT SIZING
�' ' n4 i �� n` w y,., ,.• ' -r, �t�` - -• . Available in 6'lengths,each 8"diameter sock can be molded to fit
•
4. . "kkits
* 1 x f j ,pi •'• around drains or the edges of vegetated areas.They can also be
4 'T 7x - - "'' . . p`.. placed in catch basins,vaults,and swales for passive filtration.
111 PRODUCT O KEY
SPECS p,I FEATURES
MFN SPL152 • UV-Resistant:Made with durable materials that
substances filtered Heavy Metals,Oil,Sediment,Debris, protect against prolonged UV exposure.
Phosphorus • Easy to Deploy.Simple Maintenance:Quick to install and easy
dimensions 8"D x 6'L to maintain,ensuring long-lasting performance with little effort.
sold as each • Effective Heavy Metal Removal:Captures
harmful metals,effectively lowering TSS.
weight 30 lbs each
• Adaptable:Designed for versatility,suitable for
uv-resistant yes sheet flow,swales,vaults,and containers.
[phone] www.HalenHardy.com FA!?
s 2024 HalenHardy`,All Rights Reserved. El °i

Field Performance Evaluation of Spilltration®
HardyChar Heavy Metal Filter Dikes
Our Spilltration®HardyChar Heavy Metal Filter Dikes are essential for effectively managing
pollutants in diverse environments,from urban areas to industrial sites.These durable filter socks
remove harmful metals like zinc and copper and significantly reduce TSS and turbidity.
M. Sheet Flow Performance Around a Catch Basin
Test Date Pollutant Tested %Change "PRE Treatment" Unit of Measure "POST Treatment" Unit of Measure
1/28/20 Copper 75% 387 µg/L 95.8 µg/L
1/28/20 Zinc 75% 2880 µg/L 708 µg/L
IIIIIIII Bioswale Treatment Efficacy with 20 Filter Socks
Test Date Pollutant Tested %Change "PRE Treatment" Unit of Measure "POST Treatment" Unit of Measure
2/4/20 Iron 62% 3500 µg/L 1340 µg/L
' Effectiveness of Four Filter Socks in a Catch Basin
Test Date Pollutant Tested %Change "PRE Treatment" Unit of Measure "POST Treatment" Unit of Measure
3/6/20 Aluminum 73% 1000 µg/L 270 µg/L
3/6/20 Copper 62% 12 µg/L 4.6 µg/L
3/6/20 Iron 44% 1800 µg/L 1000 µg/L
3/6/20 Lead 89% 5.3 µg/L 0.59 µg/L
3/6/20 Zinc 73% 77 µg/L 21 µg/L
INSTALLATION MAINTENANCE
General Setup:Ensure the media within the Filter Sock is evenly Dust and Fines:It's normal for Filter Socks to emit dust or fines due
distributed.A configuration that is short and wide is optimal. to filling,transportation,installation,and maintenance.If necessary,
rinse with a hose before installation,or let a rain event naturally
Catch Basin Installation:Filter Socks must be installed completely cleanse the material before conducting any sample testing.
around the grate.Maintain a six to eight-inch clearance from the
grate to the inside edge of the Filter Sock for best results. Regular Checks:Regularly inspect the Filter Socks to ensure they
are intact.Check that the area behind the Filter Socks does not
Surface Runoff:For controlling surface runoff,position the accumulate heavy sediment.
Filter Socks in a chevron pattern along the water pathway.This
arrangement slows the water flow,allowing maximum contact time Sediment Buildup:If excessive ponding or sediment buildup
with the media for optimal filtration. occurs behind the Filter Socks,remove the sediment from the
material surface by washing or brushing,depending on whether it
is wet or dry.Avoid using a high-pressure washer.
Try Spilltration products for 30 days.If you're
H H not completely satisfied,just let us know and we'll Repairs:If a hole develops,repair is straightforward.Twist the
HALE YES either fix your problem(free of charge)or refund material at the hole and secure it with a cable tie or zip tie to seal.
of your money.100%satisfaction guaranteed!
[phone]
www.HalenHardy.com V©2024 HalenHardy,All Rights Reserved.

UPS CampusShip: View/Print Label
1. Ensure there are no other shipping or tracking labels attached to your package. Select the Print button on
the print dialog box that appears. Note: If your browser does not support this function select Print from the
File menu to print the label.
2. Fold the printed label at the solid line below. Place the label in a UPS Shipping Pouch. If you do not have a
pouch, affix the folded label using clear plastic shipping tape over the entire label.
3. GETTING YOUR SHIPMENT TO UPS
Customers with a Daily Pickup
Your driver will pickup your shipment(s) as usual.
Customers without a Daily Pickup
Schedule a same day or future day Pickup to have a UPS driver pickup all your CampusShip packages.
Hand the package to any UPS driver in your area.
Take your package to any location of The UPS Store®, UPS Drop Box, UPS Customer Center, Staples® or
Authorized Shipping Outlet near you. Items sent via UPS Return Services(SM) (including via Ground) are also
accepted at Drop Boxes. To find the location nearest you, please visit the Resources area of CampusShip
and select UPS Locations.
FOLD HERE
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