NC0020389_BensonWWTP-WET_20210818

ROY COOPER.
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
Fred Nelson, Town Manager
Town of Benson
P.O. Box 69
Benson, NC 27504
NORTH CAROLINA
Environmental Quality
August 18, 2021
Subject: Bioassay Compliance Evaluation Inspection
Whole Effluent Toxicity Test
Benson WWTP
NPDES Permit No: NC0020389/001
Johnston County
Dear Mr. Nelson:
Whole Effluent samples were collected from Western Wake Regional WRF on July 27 and 29, 2021
by Cheng Zhang of Division of Water Resource (DWR), Raleigh Regional Office. These samples
were for use in a chronic Ceriodaphnia dubia pass -fail toxicity test, which was performed by the
staff at DWR Aquatic Toxicity Branch. This test passed for the toxicity inspection. Toxicity test
information follows.
Test Type
Test Concentration
Test Result
3-Brood Ceriodaphnia dubia chronic pass fail
90 %
Pass (for Toxicity Inspection)
If you have any questions regarding the attached report or any of the findings, please contact Cheng
Zhang at: [phone] (or email: [e-mail]).
Sincerely,
DocuSigned by:
L_"-
SSu. f. k
B2916E6AB32144F...
Vanessa E. Manuel, Assistant Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources
Attachments: Compliance Inspection Report
Cc: Laserfiche
Raleigh Regional Office w/attachment
Brian Leavitt, Town of Benson (electronic copy only)
NOR�D_E
�aearbnenl al Environmental 9uallly
North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Office 13800 Barrett Drive I Raleigh, North Carolina 27609
919.791.4200

United States Environmental Protection Agency
EPA 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
1 IN
Code
I 2
Li
NPDES yr/mo/day Inspection Type Inspector Fac
3 I NC0020389 111 121 21/07/27 117 181 Q I 191 S I 201
Type
211I1I
I
I 111
III
I I I I I
I I I
I
I1
I I
1 I
I I
I I I
I I
III
I I I I I
166
Inspection
671
Work Days
Facility Self -Monitoring
I 70
I3
Evaluation Rating
I 71
B1
ID
I 72
QA
I N
I 731
I
I I
Reserved
174 751
I 1
III
I
I
I
180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Numbed
Benson WWTP
770 Hannah Creek Rd
Benson NC 27504
Entry Time/Date
09:30AM 21/07/27
Permit Effective Date
21/05/01
Exit Time/Date
10:OOAM 21/07/27
Permit Expiration Date
26/04/30
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
///
Brian Peter Leavitt/ORC/919-894-2373/
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Fred Nelson,PO Box 69 Benson NC 275040069/Town
Manager/919-894-4953/9198941283 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)
Cheng Zhang
of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Docusignedby: DWR/RRO WQ/919-791-4200/
or„,,,,,,,,2uv,� 8/17/2021
D6171508E1EC41F...
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
�DocuSigned by:
j �A�f,SSa DWR/WQROS-RRO/919-791-4232 8/18/2021
�B2916E6AB32144F...
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page# 1

NPDES yr/mo/day
31 NC0020389 111 121 21/07/27
I17
Inspection Type
18 LB]
1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Two effluent composite samples were collected on July 27 and 29, 2021 and were used for
Ceriodaphnia dubia shronic pass -fail test by staff at DWR Aquatic Toxicology Branch. The test result
was PASS.
Page# 2