NC0003433_Low level Hg Cross Contamination_20200928

Action History (UTC-05:00) Eastern Time (US & Canada)
Subrrit by Anonymous User 9/28/2020 12:32:44 PM (Supplemental Submittal)
Submit by Thedford, Wren 9/28/2020 3:14:39 PM (Supplemental Info Submittal)
• Thedford, Wren assigned the task to Thedford, Wren 9/28/2020 3:14 PM
• The task was assigned to Thedford, Wren, Bennett, Bradley 9/28/2020 12:32 PM

Initial Review Information
Updated ID#:* IWORTANf:FEVIBAERSl-IOLLDVERFYand revise here ifnecessary.
NC0003433
How should this project be handled?*
r File r Discard
Information Submitted on 9/28/2020
Submitter Information
Name: Jonathan Stamas
Who is subrritting the infornation?
Email Address:* [e-mail]
Submittal Information
The Division of Water Resources (DWR) is providing this site to allow for the upload of required supplemental
information associated with discharge monitoring reports (DMR). All DMR data is required to be submitted
electronically through the eDMR system and should not be submitted here. Division staff will reviewall
uploaded documents and will only maintain required information. Documents such as laboratory reports are not required
to be submitted and will not be maintained in the system.
Project Information:
Rease SUDDly the Dernit number for this
Existing ID#* PerrritNunber
NC0003433
Examples: NCKxxxxxx or NO&xxxxx
Facility Name:* Cape Fear Plant
County: Chatham
Please upload all files that need to be
submited. *
dick the upload button or drag and drop files here to attach docurrent
COVER LETTER - CFP - NPDES NC0003433.pdf 98.78KB
Duke Energy LLHG Letter 091720 for Cape Fear.pdf 45.78KB
Only pdf files are accepted.
Comments about the attachments:
The attached documents were emailed to Vanessa Manuel on 9/28/20 and a hard copy was mailed out on the same
day.
* V By checking the box and signing box below, I certify that:

• I have given true, accurate, and complete information on this form;
• I agree that submission of this Supplemental Information form is a "transaction" subject to Chapter 66, Article 40 of the
NC General Statutes (the "Uniform Electronic Transactions Act)
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes
(the "Uniform Electronic Transactions Act');
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written
signature; AND
• I intend to electronically sign and submit the Supplemental Information form."
Full Name: Jonathan Stamas
Signature:
Date Submitted: 09/28/2020

e& DUKE
Z. OENERGY,
September 28, 2020
NC Division of Water Quality
Water Quality Section
ATTENTION: Vanessa Manuel
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: 15A NCAC 26.0506
Duke Energy Progress Carolinas —Cape Fear Plant
NPDES No. NC0003433
Discharge Monitoring Report (DMR)
Dear Ms. Manuel:
Cape Fear Steam Electric Plant
500 CP&L Road
Moncure. NC 27559
Attached is a letter from our lab vendor to address issues with the Cape Fear August 2020 DMR.
Instream mercury samples were taken on August 14th, 2020. The sample results for 008 Upstream and
008 Downstream have been left blank due to analytical laboratory running the analysis (PACE
Laboratory) providing notification that its lab experienced cross -contamination with the mercury
sample. PACE is working to correct this issue. Duke Energy will also use another laboratory going
forward until we have assurance the cross -contamination issue is resolved. A copy of the letter will be
uploaded to the NPDES Wastewater eDMR Supplemental Information Upload page and a copy will be
mailed to the address above.
Please contact Joyce Dishmon at [phone], if there are any questions concerning the data in this
submittal.
I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Sincerely,
Issa J. Zarzar
General Manager— East Region
CCP Operations and Maintenance
Enclosures

[O] 828 -417-6052
Barry.Johnson @pacelabs.com
9800 Kincey Avenue, Suite 100, Huntersville, NC 28078

PACELABS.COM

September 17, 2020
Duke Energy
3932 New Hill Holleman Rd., New Hill, NC 27562
Dear Richard Smith,

Pace Analytical Services, LLC is committed to providing high quality results and exemplary customer service to
our clients. Pace acknowledges the failure on our behalf to deliver accurate low-level mercury results for the
Duke Energy Cape Fear facility samples listed below. The issue was traced to sample cross-contamination in
the sample storage location.

Cape Fear
Project ID Lab Sample ID Customer Sample ID Collection
Date
Result Unit Field Blanks
CFR_INST 92491032001 CFR_INST_DN_1_INST_2020_089 8/14/2020 2.97 ng/L
CFR_INST 92491032003 CFR_INST_UP_1_INST_2020_091 8/14/2020 3.86 ng/L
CFR_INST 92491032002 CFR_INST_DN_1_INST_2020_090 8/14/2020 ND ng/L X
CFR_INST 92491032004 CFR_INST_UP_1_INST_2020_092 8/14/2020 ND ng/L X

Sample collection, bottle kits, sample digestion, and sample analysis were all ruled out as the source of
contamination. A different Pace customer started a new low-level mercury project that started June 23, 2020.
There were non-Duke Energy samples stored with the Duke Energy samples that had mercury concentrations
as high as 18,000 ng/L.

Pace Analytical put in several corrective actions to help reduce the chance of sample cross contamination.
• Pace segregated non-Duke Energy samples from Duke Energy samples.
• We implemented a low-level mercury storage blank system to test for storage sample cross-
contamination issues.
• Bottle kits will now include a “trip blank” to travel with the samples from the collection point to the lab
and then will go through sample receiving to the storage location.

[O] 828 -417-6052
Barry.Johnson @pacelabs.com
9800 Kincey Avenue, Suite 100, Huntersville, NC 28078

PACELABS.COM

We apologize for any inconvenience or interruptions caused by this and appreciate the opportunity to support
your analytical needs.

Please do not hesitate to contact me or Kevin Herring if you have any questions or require additional
information.

Sincerely,
Barry Johnson
Sr. Quality Assurance Manager