WQCS00092_CEI Letter and Report_20240530

DocuSign Envelope ID:7FOFDAFF-15354DFO-A94A-4E8A552B3983
ROY COOPER _
Governor -
JOHN NICHOLSON ,ao �+-P
Interim Secretary
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
May 30, 2024
Robert Davie
Town of Warrenton
P.O. Box 281
Warrenton,NC 27589
Subject: Compliance Evaluation Inspection
Town of Warrenton Collection System
Permit Number WQCS00092
Warren County
Dear Mr. Davie:
On May 24, 2024, Donald Smith of the Division of Water Resources conducted the subject
inspection. The assistance of Bill Perkinson -Public Works Director/ORC, Kenneth Champion
Chief Operator, and William Terry - Maintenance Crew Leader during the inspection was
appreciated. The following is a list of observations and findings gathered from the inspection:
1. The permit became effective June 1, 2016, and will expire on May 31, 2024. A permit
renewal application package dated October b,2023,was received by NC Division of Water
Resources.
2. The Town of Warrenton's wastewater collection system has approximately 21 miles of
gravity sewer, 8 miles of force main, and 4 duplex pump stations. Town of Warrenton
(Town)has a population of approximately 880 residents and 1,200 service connections.
3. A Fats, Oil and Grease (FOG) program is implemented and in use. Educational materials
are mailed out twice a year per permit requirements. The Town conducts grease trap and
facility inspections every 90 days and requires interior-under sink grease traps to be cleaned
monthly and larger exterior grease traps cleaned quarterly.
4. The collection system has an approximate annual operating budget of $872,844 and a
Capital Improvement Plan(CIP)of$4,147,000. The 10-year CEP was reviewed and covers
fiscal year 2023 to 2033. The CIP was adopted by the Town of Warrenton - Town Council
on August 14,2023.The CIP includes appropriations through 2030 on sewer rehabilitation,
force main and lift station rehabilitation, pump and electrical panel replacements,
generators, air release valves, emergency by-pass pumping connection, and collection
system service equipment.
� A North Carolina Department of Envtronmental Qualtty I Division of Water Resources
` Raleigh Regional Office 13800 Barren Drive RakqgI%North Carolina 2761)9
TO, �►� /`� 919.791.4200

DocuSign Envelope ID:7FOFDAFF-1535-4DF0-A94A4EBA552B3983
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May 30,2024 Page 2 of 4
5. Sanitary sewer overflow (SSO) cleanup, pumping, and reporting procedures, which
includes a response action plan was up to date. There has been one reportable SSO on
March 13, 2021, at the Town of Warrenton's collection system during a 4-year period
ending April 30, 2024. The SSO cleanup,pumping, and reporting procedures meet permit
requirements. Records for SSO's are kept for more than three years. The ORC indicates
that no non-reportable SSOs have occurred in the last 3-years. A logbook will be
maintained for non-reportable spills.
6. An up-to-date collection system map was reviewed and included manhole location, pipe
size, pipe construction material, pipe location, flow direction, approximate age and lift
station name, location, and capacity. No force main air release valves were noted on the
system map. If any of the 8 miles of force mains utilizes air release valves, identify
their location and size/type on the system map.
7. According to ORC records,approximately 3.73 miles of gravity sewer lines of the 21 miles
of gravity sewer lines were cleaned in 2023. Approximately 18-percent of the system was
cleaned in 2023.
8. According to the ORC, smoke testing and close circuit television assessments were
performed in 2020/2021 by a contractor. Findings from this assessment were used in
applying for grant funding and rehabilitation prioritization.
9. Four pump stations were visited and inspected:
a) Ridgeway Warrenton Road Lift Station
• (2)2-horsepower submersible grinder pumps
• 39 gallon per minute(GPM)—lift station capacity
• At the time of the inspection, the wet well and float controls were clean and clear
of excessive grease and debris.
• High-Level Alarm (audible/visual) was tested and was functional during the
inspection.
• Verbatim telemetry dialer was not operational,staff are checking station daily while
a new Mission telemetry dialer is being acquired and installed.
• Lift station will facilitate the connection of a portable generator.
• An upstream gravity line manhole was inspected and found to be free of blockage
and grease debris accumulation.
b) Red Hill Loop Road Lift Station
• (2) 2-horsepower submersible grinder pumps
• 49 GPM lift station capacity
• At the time of the inspection, the wet well and float controls were clean and
clear of excessive grease and debris.
• High-Level Alarm (audible/visual) was tested and was functional during the
inspection.
• Mission telemetry dialer is utilized for alarm monitoring and received the high-
level alarm test.
• According to the ORC, the lift station is visited at least weekly.

DocuSign Envelope ID:7FOFDAFF-1535-4DFO-A94A-4E8A55283983
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May 30,2024 Page 3 of 4
• Lift station controls are scheduled to be upgraded and replaced soon.
• An upstream gravity line manhole was inspected and found to be free of
blockage and grease/debris accumulation.
c) F.M. Mobile Home Park Lift Station
• (2)Smith& Loveless vacuum prime pumps
• 80 GPM--lift station capacity
• At the time of the inspection, the wet well and float controls were clean and
clear of excessive grease and debris.
• High-Level Alarm (audible/visual) was tested and was functional during the
inspection.
• A stationary generator is onsite. Main power was turned off and the emergency
generator switchgear activated, and the generator ran supplying power to the
lift station.
• Verbatim telemetry dialer is utilized for alarm monitoring and received the
high-level alarm and generator load test.
• According to ORC,the lift station is visited at least weekly.
• A couple of upstream gravity line manholes were inspected and found to be free
of blockages and grease/debris accumulation.
d) John Riggan Lift Station
• (2)Fairbanks-Morris pumps
• 260 GPM—lift station capacity
• At the time of the inspection, the wet well and float controls were clean and
clear of excessive grease and debris.
• High-Level Alarm (audible/visual) was tested and was functional during the
inspection.
• A stationary generator is onsite. Main power was turned off and the emergency
generator switchgear activated, and the generator ran supplying power to the
lift station.
• A coolant leak was noted on the generator while it was running. Facilitate a
repair as soon as possible as a coolant leak may affect the reliability of the
generator during longer run emergency operations.
• A 6-inch emergency bypass pumping connection is located onsite.
• The pump station also includes an 8,800-gallon storage capacity.
• Mission telemetry dialer is utilized for alarm monitoring and received the high-
level alarm and generator load test.
• According to ORC, the lift station is visited at least weekly.
• An upstream gravity line manhole was inspected and found to be free of
blockage and grease/debris accumulation.
10. The spill response plan was available for review and included response procedures and
contact phone numbers for emergency response. A 30-minute response time goal is set to
respond to emergencies. An on-call schedule is established for 24 hour a day emergency
response. After-hour emergency calls are managed and dispatched through the police
department call center.

DocuSign Envelope ID:7FOFDAFF-15354DFO-A94A-4E8A552B3983
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May 30,2024 Page 4 of 4
11. Pump Station operations and maintenance logs were reviewed and appeared satisfactory.
12. One high priority line and County of Warren force main receiving manhole was visited.
The raised manhole ring and cover was heavily corroded from exposure to force main
sewer gases. The force main receiving manhole should be monitored closely for potential
replacement of the manhole ring and cover in the future. The receiving manhole included
an epoxy liner and a 14-16-foot elevated vent pipe.
13. Easements observed during the collection system inspection appeared to be maintained and
accessible for system inspection/maintenance/emergency. The ORC indicated that the
easement mowing and clearing goal is every 2-3 years. Sewer line easement maintenance
is generally 20 to 30-foot wide.
The overall condition of the collection system was compliant with the wastewater collection
system permit requirements observed on the day of the inspection. If you have any questions
concerning this report, please contact Donald Smith at (919) 791-4234 or by e-mail at
[e-mail].
Sincerely,
Cl/A1n,t,SSa f'. IkaLuvt t
e261BEeA8321"F
Vanessa E. Manuel,Assistant Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources,NCDEQ
Attachment: Compliance Inspection Report
cc: Laserfiche

DocuSign Envelope ID:7FOFDAFF-1535-4DFO-A94A-4E8A552B3983
Compliance Inspection Report
Permit:WOCS00092 Effective: 06/01/16 Expiration: 05/31/24 Owner: Town of Warrenton
SOC: Effective: Expiration: Facility: Warrenton Collection System
County: Warren PO Box 281
Region: Raleigh
Warrenton NC 275890281
Contact Person:William Robert Perkinson Title: Public Works Director Phone:[phone]
Directions to Facility:
System Classifications: CS2,
Primary ORC:William Robert Perkinson Certification: 990656 Phone:[phone]
Secondary ORC(s):
Jeffrey Bruce Whitley 989596 252-235-4900
Kenneth Wayne Champion 992075 252-257-1776
On-Site Representative(s):
Related Permits:
NCO020834 Town of Warrenton-Warrenton WWTP
Inspection Date: 05/24/2024 Entry Time 01:30PM Exit Time: 03:30PM
Primary Inspector:Donald Smith Phone: [phone]
ooeusigned by: 5/30/2024
Secondary Inspector(s): Via!`
$12ED5247FA847A
Reason for Inspection: Routine Inspection Type: Collection System inspect Non Sampling
Permit Inspection Type: Collection system management and operation
Facility Status: 0 Compliant ❑ Not Compl ant
Question Areas:
Miscellaneous Questions General Sewer&FOG Ordinances
Capital Improvement Plan Map Reporting Requirements
Inspections Spill Response Plan Spills
Lines Manholes Pump Stations
(See attachment summary)
Page 1 of 7

DocuSign Envelope ID:7FOFDAFF-1535-40FO-A94A-4E8A55283983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type:Collection System Inspect Non Sampling Reason for Visit: Routine
Inspection Summary:
Reviewed permit conditions and system records. Visited 4 lift stations,force main receiving manhole, and sewer easement.
Rage 2 of 7

DocuSign Envelope ID:7FOFbAFF-1535-41)FO-A94A-4E8A552B3983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type:Collection System Inspect Non Sampling Reason for Visit: Routine
General Yes No NA NE
Is there a properly designated primary ORC and at least one back-up of proper grade? 0 ❑ ❑ ❑
Are logs being reviewed by the system management or owner on a regular basis? No ❑ ❑
#What is that frequency? Monthly
#Are there any issues being addressed currently or any in the planning stages? 0 ❑ ❑ ❑
Is there a specific pump failure plan available for all pump stations? N ❑ ❑ ❑
Does plan indicate if pump parts,,new pumps are in spare parts/equipment inventory? 0 ❑ ❑ ❑
Are new/significantly upgraded pump stations equipped with anti-corrosion materials? ❑ ❑ 0 ❑
Does the permittee have a copy of their permit? N ❑ ❑ ❑
#is permit expiring within the next 6 months? E ❑ ❑ ❑
If Yes, has the Permiltee applied for renewal? E ❑ ❑ ❑
Comment:
Sewer and FOG Ordinances Yes No NA NE
Is Sewer Use Ordinance(SUO)or other Legal Authority available? E ❑ ❑ ❑
Does it appear that the Sewer Use Ordinance is enforced? N ❑ ❑ ❑
Is there a Grease Control Program that legally requires grease control devices? ■ ❑ ❑ ❑
What is the standard grease trap cleaning requirement in the FOG ordinance? Interior-daily,
Exterior-quarterly
Is Grease Control Program enforced via periodic inspections/records review? ■ ❑ ❑ ❑
Is action taken against violators? N ❑ ❑ ❑
# Have satellite systems adopted an equivalent or more stringent ordinance? ❑ ❑ ❑
Is grease/sewer education program documented with req'd customer distribution? ❑ ❑ ❑
#Are other types of education tools used like websites, booths, special meetings, etc? ❑ ❑ ❑
If Yes, what are they?(This can reduce mailing to annual,)
Website information
Comment: Town of Warrenton WWTP receives wastewater flow from Warren County and Town of Norlina
Capital Improvement Plan Yes No NA NE
Has a Capital (CIP)or System Improvement Plan been developed and adopted? N ❑ ❑ ❑
Is it designated for wastewater only or does it have a dedicated section? ■ ❑ ❑ ❑
Does CIP cover three to five year period of earmarked improvements? 0 ❑ ❑ ❑
Does CIP include description of project area? E ❑ Cl ❑
Does CIP include description of existing facilities? ❑ N ❑ ❑
Does CIP include known deficiencies? 0 ❑ ❑ ❑
Does CIP include forecasted future needs? 0 ❑ ❑ ❑
Page 3 of 7

DocuSign Envelope ID:7FOFDAFF-1535-4DF0-A94A-4E8A552B3983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type:Collection System Inspect Non Sampling Reason for Visit: Routine
Comment: Current and upcoming projects include: Red Hill Loop Lift Station electrical control panel.
Identifies some equipment ac uisition and replacement. General overall sewers stem
rehabilitation. Smoke testing and CCTV conducted by contractor in 2020/2021 to help acquire
grant funding and rehab focus. CIP adopted by Council on 8/14/2023
Map Yes No NA NE
Is there a overall sewer system map? 0 ❑ ❑ ❑
Does the map include:
Pipe Type(GS/FM) M ❑ ❑ ❑
Pipe sizes 0 ❑ ❑ ❑
Pipe materials(PVC,DIP,etc) M ❑ ❑ ❑
Pipe location 0 ❑ ❑ ❑
Flow direction M ❑ ❑ ❑
Approximate pipe age 0 ❑ ❑ ❑
Pump station ID, location and capacity M ❑ ❑ ❑
# Force main air release valve location&type ❑ 0 ❑ ❑
# Location of satellite connections 0 ❑ ❑ ❑
Is the map being updated for changes/additions within 1 year of activation? 0 ❑ ❑ ❑
Comment: Discussed with ORC addition on air release valve locations and type.
Reporting Requirements Yes No NA NE
#Have there been any sewer spills in the past 3 years? M ❑ ❑ ❑
If Yes,were they reported to the Division if meeting the reportable criteria? M ❑ ❑ ❑
If applicable,is there documentation of press releases and public notices issued? ❑ ❑ M ❑
Is an Annual Wastewater Performance Report being filed with the Division,if required? M ❑ ❑ ❑
Is the report being made available to all its sewer customers? 0 ❑ ❑ ❑
#How is it being made available? Newspaper
Comment: One reportable spill March 13, 2021 and less than 1,000 gallons. Affidavit maintained on file of
annual performance report article publishing -September 2023
Inspections Yes No NA NE
Are adequate maintenance records maintained? 0 ❑ ❑ ❑
Are pump stations being inspected at the required frequency? 0 ❑ ❑ ❑
#Is at least one complete functionality test conducted weekly per pump station? M ❑ ❑ ❑
Is there a system or plan in place to observe the entire system annually? 0 ❑ ❑ ❑
Is the annual inspection documented? 0 ❑ ❑ ❑
#Does the system have any high-priority lines/locations? 0 ❑ ❑ ❑
Are inspections of HPL documented at least every 6 months? ❑ ❑ ❑
Are new lines being added to the HPL list when found or created? ❑ ❑ ❑
Comment:
Page 4 of 7

DocuSign Envelope ID:7FOFDAFF-1535-4DFO-A94A-4E8A552B3983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type :Collection System Inspect Non Sampling Reason for Visit: Routine
Spill Response Action Plan Yes No NA NE
Is a Spill Response Action Plan available? 0 ❑ ❑ ❑
Is a Spill Response Action Plan available for all personnel? 0 ❑ ❑ ❑
Does the plan include:
24-hour contact numbers 0 ❑ ❑ ❑
Response time 0 ❑ ❑ ❑
Equipment list and spare parts inventory 0 ❑ ❑ ❑
Access to cleaning equipment ■ ❑ ❑ ❑
Access to construction crews, contractors,and/or engineers 0 ❑ ❑ ❑
Source of emergency funds 0 ❑ ❑ ❑
Site sanitation and cleanup materials 0 ❑ ❑ ❑
Post-overflow/spill assessment 0 ❑ ❑ ❑
Does the Permittee appear to respond within 2 hours of first knowledge of a spill? 0 ❑ ❑ ❑
Comment: ORC indicated expected response time is 30-minutes
$pIIIS Yes No NA NE
Is system free of known points of bypass? M ❑ ❑ ❑
If No,describe type of bypass and location
Are all spills or sewer related issues/complaints documented? 0 ❑ ❑ ❑
##Are there repeated overflows/problems(2 or more in 12 months)at same location? ❑ E ❑ ❑
##If Yes,is there a corrective action plan? ❑ ❑ 0 ❑
Comment: ORC indicated that they have not had any non-reportable SSO in last 3 years.
Lines/Right-of-Ways/Aerial Lines Yes No NA NE
Please list the Lines/Right of Ways/Aerial Lines Inspected:
Conducted inspection of the receiving manholes and easments associated with the Warren County pump
station force main discharge. Manhole ring and cover at receing manhole had noteable corrosion. Concrete
manhole was epoxy lined and included an elevated vent(14-16)feet tall.
Are right-of-ways/easements maintained for full width for access by staff/equipment? ❑ ❑ ❑
If No,give details on temporary access:
Is maintenance documented? E ❑ ❑ ❑
Are gravity sewer cleaning records available? E ❑ 110
Has at least 10% of lines older than 5 yrs been cleaned annually? 0 ❑ ❑ ❑
Were all areas/lines inspected free of issues? M ❑ 110
Comment: Approximately 18% of gravity sewer lines were cleanned in 2023
Manholes Yes No NA NE
Please list the Manholes Inspected:
7 manholes inspected and included manholes upstream of pump stations and one force main recieving
manhole
Page 5 of 7

DocuSign Envelope ID:7FOFDAFF-1535-40F0-A94A-4E8A552B3983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type:Collection System Inspect Non Sampling Reason for Visit: Routine
Are manholes accessible? N ❑ ❑ ❑
#Are manhole covers/vents above grade? E ❑ ❑ ❑
Are manholes free of visible signs of overflow? 0 ❑ ❑ Cl
Are manholes free of sinkholes and depressions? 0 ❑ ❑ ❑
Are manhole covers present? 0 ❑ 110
#Are manholes properly seated? 0 ❑ ❑ ❑
#Are manholes in good condition? 0 ❑ ❑ ❑
#Are inverts in good condition? E ❑ ❑ ❑
Is flow unrestricted in manholes? N ❑ ❑ ❑
Are manholes free of excessive amounts of grease? 0 ❑ ❑ ❑
Are manholes free of excessive roots? 0 ❑ ❑ ❑
Are manholes free of excessive sand? M ❑ Cl ❑
Are manhole vents screened? 0 ❑ ❑ ❑
Are vents free of submergence? ■ ❑ ❑ ❑
Are manholes free of bypass structures or pipes? 0 ❑ ❑ ❑
Comment: Asked ORC to monitor Warren County Force Main Receiving Manhole ring and cover for
corrosion. Replace ring/cover if corrosion becomes excessive.
Pump Stations Yes No NA NE
Please list the Pump Stations Inspected:
Ridgeway Warrenton Road, Red Hill Loop Road, FM Mobile Home Park,John Riggan Lift Stations
#Number of duplex or larger pump stations in system 4
#Number of vacuum stations in system 0
#Number of simplex pump stations in system 0
#Number of simplex pump stations in system serving more than one building 0
How many pump/vacuum stations have:
# A two-way"auto polling"communication system(SCADA)installed? 0
# A simple one-way telemetry/communication system(auto-dialer)installed? 4
For pump stations inspected:
Are they secure with restricted access? 0 ❑ ❑ ❑
Were they free of by-pass structures/pipes? 0 ❑ ❑ ❑
Were wet wells free of excessive grease/debris? 0 ❑ ❑ ❑
# Do they all have telemetry installed? N ❑ ❑ ❑
Is the communication system functional? ❑ 0 ❑ ❑
Is a 24-hour notification sign posted? M ❑ ❑ ❑
Does the sign include:
Owner Name? N ❑ ❑ ❑
Pump station identifier? N ❑ ❑ ❑
Page 6 of 7

DocuSign Envelope ID:7FOFDAFF-1535-4DF0-A94A-4E$A552B3983
Permit: WQCS00092 Owner-Facility:Town of Warrenton
Inspection Date: 05/24/2024 Inspection Type:Collection System Inspect Non Sampling Reason for Visit: Routine
# Address? M ❑ ❑ ❑
Instructions for notification? 0 ❑ ❑ ❑
24-hour emergency contact numbers? M ❑ ❑ ❑
Are audio and visual alarms present? M ❑ ❑ ❑
Are audio and visual alarms operable? M ❑ ❑ ❑
# Is there a backup generator or bypass pump connected? M ❑ ❑ ❑
If tested during inspection, did it function properly? 0 ❑ ❑ ❑
Is the back-up system tested at least bi-annually under normal operating conditions? 0 ❑ ❑ ❑
#Does it have a dedicated connection for a portable generator? M ❑ ❑ ❑
#Is the owner relying on portable units in the event of a power outage? 0 ❑ ❑ ❑
#If Yes,is there a distribution plan? 0 ❑ ❑ ❑
If Yes,what resources(UnitslStaffNehiclesletc)are included in Plan?
2-lift stations had permanent generators and 2 had hookup for portable generator.ORC indicated that they
have access to sufficient generators to run all stations on generator if needed. All four pump stations have
dialer telemetry. One unit is out of service and in process of being replaced.
#Does Permittee have the approved percentage of replacement simplex pumps? ❑ 0 ❑ ❑
Is recordkeeping of pump station inspection and maintenance program adequate? 0 ❑ ❑ ❑
Do pump station logs include at a minimum:
Inside and outside cleaning and debris removal? 0 ❑ ❑ ❑
Inspecting and exercising all valves? ❑ ❑ ❑ 0
Inspecting and lubricating pumps and other equipment? 0 ❑ ❑ ❑
Inspecting alarms,telemetry and auxiliary equipment? M ❑ ❑ ❑
Comment: ORC indicated that smaller 2 HD Dumps are readily accessible and avaiulable from a local
supplier and serves as their pump spare.
Page 7 of 7