WQCS00056_Compliance Evaluation Inspection_20211217

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
ROY COOPER.
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
Mr. Roy Lynch, Town Manager
Town of Siler City
PO Box 769
Siler City, NC 27344
NORTH CAROLINA
Environmental Quality
December 17, 2021
Subject: Compliance Evaluation Inspection
Town of Siler City Collection System
Collection System Permit No: WQCS00056
Chatham County
Dear Mr. Lynch:
On August 27, 2021, Cheng Zhang of the Raleigh Regional Office (RRO) Division of Water
Resources conducted a Compliance Evaluation Inspection of the subject facility. The assistance
and cooperation of Mr. Chris McCorquodale, Public Works and Utilities Director, Mr. Joey
Smith, Operations Superintendent, were very helpful and appreciated. A checklist of items is
enclosed with this letter. During the inspection the following items were noted:
1.) Town of Siler City collection system is Class II Collection System. It has approximately 57
miles of gravity sewer and 4 miles of force main, and 7 duplex pump stations.
2.) The Town's Capital Improvement Plan (CIP) for the sewer system was reviewed. The Plan
covers a 20-year period from 2021 to 2040.
3.) The Town has a collection system map which has most components required by the permit.
Approximate pipe age needs to be added to the map.
4.) The facility has a grease educational program. Grease educational material is distributed to
all users with water bills semi-annually. Grease traps/interceptors are inspected on an annual
basis.
5.) There have been twenty reportable Sanitary Sewer Overflows (SS0s) since the last
inspection. Press releases and public notices were available for review.
6.) Five pump stations were visited during the inspection. It was noted that three pump
stations were not equipped with back flow devices, which is not compliant with the
Town's own Ordinance. The system has 11 listed high -priority lines (including 11 aerial
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

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
lines). Three aerial lines (see enclosed inspection report) were observed during the
inspection, all were found accessible. It was noted that an ongoing SSO (Incident No.
202101841) was observed from a manhole at one end of an aerial line crossing Loves
Creek. Enforcement was taken by RRO on this incident.
7.) Pump station and high -priority line inspections, gravity line cleaning, easement maintenance,
spill response action plan were reviewed during the 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,
ri
DocuSigned by:
.,
BCDA9D825D4A46D...
Scott Vinson, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources
Attachments: Compliance Inspection Report
cc: RRO/SWP Files
Laserfiche
Chris McCorquodale, Town of Siler City (electronic copy only)
1:11
NORTH CAROLINA
neArhneid of Environmentalauni�
North Carolina Department of Environmental Quality I Division of Water Resources
Raleigh Regional Office r 3800 Barrett Drive I Raleigh, North Carolina 27609
919.791.4200

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Compliance Inspection Report
Permit: WQCS00056 Effective: 05/01/15 Expiration: 04/30/23 Owner : Town of Siler City
SOC: Effective: Expiration: Facility: Siler City Collection System
County: Chatham PO Box 769
Region: Raleigh
Contact Person: Terry Green
Directions to Facility:
System Classifications: CS2,
Primary ORC: Joseph Lee Smith
Secondary ORC(s):
On -Site Representative(s):
On -site representative
Related Permits:
Title: Director of Public Works
Certification: 992772
Chris McCorquodale
NC0026441 Town of Siler City - Siler City WWTP
Inspection Date: 08/27/2021
Primary Inspector: Cheng Zhang
Secondary Inspector(s):
Siler City NC 27344
Entry Time 09:30AM Exit Time: 01:OOPM
Phone: [phone]
Phone: [phone]
919-742-4581
Phone: [phone]
Reason for Inspection: Routine Inspection Type: Collection System Inspect Non Sampling
Permit Inspection Type: Collection system management and operation
Facility Status: ❑ Compliant Not Compliant
Question Areas:
▪ Miscellaneous Questions
II Capital Improvement Plan
▪ Inspections
▪ Lines
(See attachment summary)
▪ General
▪ Map
▪ Spill Response Plan
▪ Pump Stations
▪ Sewer & FOG Ordinances
▪ Reporting Requirements
▪ Spills
Page 1 of 6

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Permit: WQCS00056 Owner - Facility:Town of Siler City
Inspection Date: 08/27/2021
Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
Inspection Summary:
Record review included pump station and high -priority line inspections, gravity line cleaning, easement maintenance, grease
control/education program, spill response action plan, and sanitary sewer overflow incidenes.
There were 20 SSOs reported since the last inspection, press releases and public notices were available for review.
The Town has updated Capital Improvement Plan with covers from 2021 to 2040.
Five pump stations and three high -priority lines were visited during the inspection. It was noted that an ongoing SSO was
observed from a manhole at one end of an aerial line crossing Loves Creek.
Page 2 of 6

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Permit: WQCS00056 Owner - Facility:Town of Siler City
Inspection Date: 08/27/2021
Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
General
Is there a properly designated primary ORC and at least one back-up of proper grade?
Are logs being reviewed by the system management or owner on a regular basis?
# What is that frequency?
# Are there any issues being addressed currently or any in the planning stages?
Is there a specific pump failure plan available for all pump stations?
Does plan indicate if pump parts/new pumps are in spare parts/equipment inventory?
Are new/significantly upgraded pump stations equipped with anti -corrosion materials?
Does the permittee have a copy of their permit?
# Is permit expiring within the next 6 months?
If Yes, has the Permittee applied for renewal?
Comment: Current permit will expire on April 30, 2023.
Sewer and FOG Ordinances
Is Sewer Use Ordinance (SUO) or other Legal Authority available?
Does it appear that the Sewer Use Ordinance is enforced?
Is there a Grease Control Program that legally requires grease control devices?
What is the standard grease trap cleaning requirement in the FOG ordinance?
Is Grease Control Program enforced via periodic inspections/records review?
Is action taken against violators?
# 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.)
Comment: Grease educational material is mailed with water bills twice per year.
Capital Improvement Plan
Has a Capital (CIP) or System Improvement Plan been developed and adopted?
Is it designated for wastewater only or does it have a dedicated section?
Does CIP cover three to five year period of earmarked improvements?
Does CIP include description of project area?
Does CIP include description of existing facilities?
Does CIP include known deficiencies?
Does CIP include forecasted future needs?
Comment: Current CIP covers 20-year period from 2021 to 2040.
Map
Yes No NA NE
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monthly
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Yes No NA NE
Page 3 of 6

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Permit: WQCS00056 Owner - Facility:Town of Siler City
Inspection Date: 08/27/2021
Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
Is there a overall sewer system map?
Does the map include:
Pipe Type (GS/FM)
Pipe sizes
Pipe materials (PVC, DIP, etc)
Pipe location
Flow direction
Approximate pipe age
Pump station ID, location and capacity
# Force main air release valve location & type
# Location of satellite connections
Is the map being updated for changes/additions within 1 year of activation?
Comment: GIS based map, approximate pipe age needs to be added.
Reporting Requirements
# Have there been any sewer spills in the past 3 years?
If Yes, were they reported to the Division if meeting the reportable criteria?
If applicable, is there documentation of press releases and public notices issued?
Is an Annual Wastewater Performance Report being filed with the Division, if required?
Is the report being made available to all its sewer customers?
# How is it being made available?
Comment:
Inspections
Are adequate maintenance records maintained?
Are pump stations being inspected at the required frequency?
# Is at least one complete functionality test conducted weekly per pump station?
Is there a system or plan in place to observe the entire system annually?
Is the annual inspection documented?
# Does the system have any high -priority lines/locations?
Are inspections of HPL documented at least every 6 months?
Are new lines being added to the HPL list when found or created?
Comment:
Spill Response Action Plan
Is a Spill Response Action Plan available?
Is a Spill Response Action Plan available for all personnel?
Does the plan include:
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publised on local
newpaper
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Page 4 of 6

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Permit: WQCS00056 Owner - Facility:Town of Siler City
Inspection Date: 08/27/2021
Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
24-hour contact numbers
Response time
Equipment list and spare parts inventory
Access to cleaning equipment
Access to construction crews, contractors, and/or engineers
Source of emergency funds
Site sanitation and cleanup materials
Post-overflow/spill assessment
Does the Permittee appear to respond within 2 hours of first knowledge of a spill?
Comment:
Spills
Is system free of known points of bypass?
If No, describe type of bypass and location
Are all spills or sewer related issues/complaints documented?
# Are there repeated overflows/problems (2 or more in 12 months) at same location?
# If Yes, is there a corrective action plan?
Comment:
Lines/Right-of-Ways/Aerial Lines
Please list the Lines/Right of Ways/Aerial Lines Inspected:
South 6 Loves Creek; Jordan Matthews; Lowes Food
Are right-of-ways/easements maintained for full width for access by staff/equipment?
If No, give details on temporary access:
Is maintenance documented?
Are gravity sewer cleaning records available?
Has at least 10% of lines older than 5 yrs been cleaned annually?
Were all areas/lines inspected free of issues?
Comment:
Pump Stations
Please list the Pump Stations Inspected:
Basic Machinery, Blood Run, Hamony Hill, Progress Blvd., and Tech Way
# Number of duplex or larger pump stations in system
# Number of vacuum stations in system
# Number of simplex pump stations in system
# Number of simplex pump stations in system serving more than one building
How many pump/vacuum stations have:
# A two-way "auto polling" communication system (SCADA) installed?
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Page 5 of 6

DocuSign Envelope ID: 24021250-35CE-4C52-B92D-6B6F00540982
Permit: WQCS00056 Owner - Facility:Town of Siler City
Inspection Date: 08/27/2021
Inspection Type : Collection System Inspect Non Sampling Reason for Visit: Routine
# A simple one-way telemetry/communication system (auto -dialer) installed?
For pump stations inspected:
Are they secure with restricted access?
Were they free of by-pass structures/pipes?
Were wet wells free of excessive grease/debris?
# Do they all have telemetry installed?
Is the communication system functional?
Is a 24-hour notification sign posted ?
Does the sign include:
Owner Name?
Pump station identifier?
# Address?
Instructions for notification?
24-hour emergency contact numbers?
Are audio and visual alarms present?
Are audio and visual alarms operable?
# Is there a backup generator or bypass pump connected?
If tested during inspection, did it function properly?
Is the back-up system tested at least bi-annually under normal operating conditions?
# Does it have a dedicated connection for a portable generator?
# Is the owner relying on portable units in the event of a power outage?
# If Yes, is there a distribution plan?
If Yes, what resources (Units/Staff/Vehicles/etc) are included in Plan?
# Does Permittee have the approved percentage of replacement simplex pumps?
Is recordkeeping of pump station inspection and maintenance program adequate?
Do pump station logs include at a minimum:
Inside and outside cleaning and debris removal?
Inspecting and exercising all valves?
Inspecting and lubricating pumps and other equipment?
Inspecting alarms, telemetry and auxiliary equipment?
Comment:
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