NC0004243_Bioassay Compliance Inspection Report_20220907

SENT VIA ELECTRONIC MAIL ONLY: NO HARD COPY WILL BE MAILED.

September 7, 2022

John Moss, Facilities Engineering Manager
Coats American Inc.
Email: [e-mail]

SUBJECT: Bioassay Compliance Inspection Report
Sevier Plant
NPDES WW Permit No. NC0004243
McDowell County

Dear Permittee:

The North Carolina Division of Water Resources conducted a Bioassay Compliance Inspection of the Coats
American – Sevier Plant on July 26, 2022 and July 28, 2022. This inspection was conducted to verify that the
facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No.
NC0004243 for this permit condition. The test resulted in a pass and the facility appeared to be in compliance
with NPDES WW Permit No. NC0004243; however, please note the data qualifier outlined in the report.
Findings noted during this inspection are provided in the enclosed copy of the inspection report.

There were no significant issues or findings noted during the inspection and therefore, a response to this
inspection report is not required.

If you should have any questions, please do not hesitate to contact me at 828-296-4667 or via email at
[e-mail].

Sincerely,

Lauren Armeni, Environmental Specialist II
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ

ATTACHMENTS: Inspection Report

Ec: Laserfiche
Todd Wegenast (Environmental Compliance Manager)
Sara Hudgins (ORC)

DocuSign Envelope ID: 34422053-2C56-4B63-90BB-EFEDD0D50E49
EPA
United States Environmental Protection Agency
Washington, D.C. 20460
Water Compliance Inspection Report
Form Approved.
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 N 52 NC0004243 22/07/26 B S31112171819 20
21 66
Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved-------------------
D N67707172 73 74 75 80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Sevier Plant
630 American Thread Rd
Marion NC 28752
Entry Time/Date Permit Effective Date
Exit Time/Date Permit Expiration Date
08:00AM 22/07/26 17/12/01
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Sara Lynn Hudgins/ORC/828-756-4111/
Other Facility Data
08:30AM 22/07/26 21/11/30
Name, Address of Responsible Official/Title/Phone and Fax Number
John J Moss,630 American Thread Rd Marion NC 287528534/Facilities Engineering
Manager/828-756-4111/8287567108
Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Other
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date
Lauren E Armeni DWR/ARO WQ/828-296-4500/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
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DocuSign Envelope ID: 34422053-2C56-4B63-90BB-EFEDD0D50E49
9/7/2022
9/7/2022
NPDES yr/mo/day
22/07/26
Inspection Type
B3111218
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On July 26, 2022 and July 28, 2022, Lauren Armeni with the Asheville Regional Office conducted
Bioassay Compliance Inspections at the Coats American - Sevier Plant. Whole Effluent samples were
split with the assistance of Mr. Matthew Cole (BORC in training) for use in a chronic Ceriodaphnia
dubia full multi-concentration toxicity test. The toxicity test passed for both the Division's sample
(analyzed by our Bioassay Laboratory in Raleigh) and Coat's sample (analyzed by Meritech Labs).
The data was qualified for the Division's sample because the lab technician started the test beyond
the time requirements for the use of organisms, and therefore this test cannot be used for EPA 106
reporting. Toxicity test information follows:
Test Type 3-Brood Ceriodaphnia dubia chronic multi-concentration
Test Result ChV = >60%, Pass*
Test Concentrations 0, 3.75, 7.5, 15, 30, 60%
Control Survival 100%
Control Mean Reproduction 32.7 neonates
Test Treatment Survival 100% at 15% and 60%
Treatment Mean Reproduction 35.4 neonates in 15%; 34.2 neonates in 60%
First Sample pH 7.90 SU
First Sample Conductivity 399 micromhos/cm
First Sample Total Residual Chlorine <0.10 mg/L
Second Sample pH 7.78 SU
Second Sample Conductivity 440 micromhos/cm
Second Sample Total Residual Chlorine <0.10 mg/L
*Data has been qualified because a quality control item was not followed. The test cannot be
used for the EPA 106 program. Best Professional Judgment leads us to believe this test would
have passed even with this missed Quality Control issue.
NC0004243 17 (Cont.)
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DocuSign Envelope ID: 34422053-2C56-4B63-90BB-EFEDD0D50E49
Permit:NC0004243
Inspection Date:07/26/2022
Owner - Facility:
Inspection Type:
Sevier Plant
Bioassay Compliance
Other Yes No NA NE
See summary for inspection details.Comment:
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DocuSign Envelope ID: 34422053-2C56-4B63-90BB-EFEDD0D50E49