NCG110165_SWPPP_20240429

Johnston County
DEPARTMENT OF PUBLIC UTILITIES
PO BOX 2263
SMITHFIELD, NC 27577
[phone]
April25,2024 � f/' / I , D 1/ S S�Pp
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DEMLR—Stormwater Program 8?�Q
Department of Environmental Quality
1612 Mail Service Center
Raleigh, NC 27699-1612
Re: 210 WWTF SWPPP Submittal for NCG31 Coverage
Dear NPDES Industrial Program Office:
A Notice of Intent for stormwater discharge NPDES coverage of the new 210 Wastewater Treatment
Facility(WWTF) under NCG11 was submitted in March 2024.As a follow-up to that NO] submittal,
enclosed is a copy of the Stormwater Pollution Prevention Plan (SWPPP)for the 210 WWTF. Please let us
know if you have any questions or comments regarding this SWPPP or would like to schedule a site
inspection.The County is currently targeting commencement of operations at the 210 WWTF by
June 13, 2024.
Sincerely,
Chandra C. Farmer, PE
Director of Utilities
Enclosure

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210 Wastewater Treatment Facility
Stormwater Pollution Prevention Plan
Prepared in Accordance with the NCG110000 General Permit to
Discharge Stormwater Under the National Pollutant Discharge
Elimination System for Establishments Primarily Engaged in
Treatment Works
Permit Effective Date: March 1It, 2024
Permit Expiration Date: February 28t", 2029
SWPPP Preparation Date:
April 23rd, 2024

210 Wastewater Treatment Facility 2024 Industrial SWPPP
Table of Contents-
i.; • 1. Executive Summary.................................................................................................. 1
2. Background............................................................................................................... 3
3. Responsible Parry (B-1)............................................................................................4
4. General Location Map (B-2)...................................................................................... 6
5. Site Map (B-3)........................................................................................................... 6
6. Description of Industrial Processes (B-4)..................................................................7
6.1 Potential Pollutants in Stormwater..............................................................................................8
7. Evaluation of Stormwater Outfalls (B-5)....................................................................8
7.1 Stormwater Outfall Description...................................................................................................9
7.2 Analytical Monitoring of Stormwater Discharges........................................................................9
7.3 Qualitative Monitoring of Stormwater Discharges ....................................................................11
7.4 Non-Stormwater Discharges.....................................................................................................11
8. Stormwater BMP Summary (B-6) ........................................................................... 13
9. Secondary Containment Plan (B-7) ........................................................................ 13
10. Spill Prevention and Response Procedures (B-8)................................................... 14
11. Solvent Management Plan (B-9)............................................................................. 15
12. Preventative Maintenance and Good Housekeeping Program (B-10) .................... 15
13. Employee Training (B-11)....................................................................................... 16
14. Permit Administration.............................................................................................. 17
14.1 Signatory Requirements ...........................................................................................................17
14.2 Annual SWPPP Review and Update (13-14).............................................................................17
14.3 Annual Fee Requirement..........................................................................................................18
14.4 Notice to Modify the SWPPP (B-15).........................................................................................18
14.5 Planned Changes to the 210 WWTF........................................................................................19
14.6 Duty to Provide Information and Consent to Entry,and Facility Inspection ..............................19
14.7 SWPPP Documentation (B-16).................................................................................................19
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
List of Tables
Table 1: Responsibilities of the SWPPP Team...............................................................................4
Table 2: Contact Information for Key SWPPP Team Members .................................................... 5
Table 3: Potential pollutants that may be present in discharge from each stormwater outfall at the
210 WWTF............................................................................................................................ 8
Table 4: Descriptions of the areas draining to the stormwater outfalls within 210 WWTF........... 9
Table 5: The principal executive officer and the duly authorized representative......................... 17
Table 6: Contact information for invoice and e-payment questions............................................. 18
List of Acronyms
COC—Certificate of Coverage
CM - Control Measure
CWA—Clean Water Act
DEMLR - Division of Energy, Mineral, and Land Resources
DMR—Discharge Monitoring Report
MGD -Million Gallon per Day
MS4—Municipal Separate Stormwater Sewer System
NCDEQ -North Carolina Department of Environmental Quality
NOI—Notice of Intent
NPDES -National Pollutant Discharge Elimination System
PMGHP - Preventative Maintenance and Good Housekeeping Program
PTF - Preliminary Treatment Facility
QMR- Qualitative Monitoring Report
SO — Stormwater Outfall
SWPPP - Stormwater Pollution Prevention Plan
TSS=Tota1_Suspended.Solids
WWTF - Wastewater Treatment Facility

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210 Wastewater Treatment Facility 2024Industrial SWPPP
List of Attachments
Attachment A: General Location Map
Attachment B: Site Map
Attachment C: Forms
• DEMLR's Stormwater Discharge Monitoring Report Form
• DEMLR's Stormwater Discharge Qualitative Monitoring Report Form
• DEMLR's Annual Summary Data Monitoring Report Form
Attachment D: Certification Statement
Attachment E: Employee Training Log
Attachment F: Maintenance Log
Attachment G: SWPPP Amendment Log
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210 wastewater Treatment Facility 2024 Industrial SWPPP
1. Executive Summary
Johnston County is constructing a new Wastewater Treatment Facility (WWTF) to meet
the future wastewater treatment demands of a growing service area. A new 4 million
gallon per day (MGD) WWTF, known as the 210 Wastewater Treatment Facility, will be
constructed to increase the County's treatment capacity from the current 9.5 MGD to
13.5 MGD. As designed, the facility will discharge stormwater to the "Unnamed
Tributary of Middle Creek". Federal regulation requires facilities that treat domestic
sewage at a design flow rate of at least 1.0 MGD be permitted under the National
Pollutant Discharge Elimination System (NPDES) Stormwater Program before
discharging stormwater to surface waters within the United States. Under the NPDES
Stormwater Program, permits are issued to mandate the implementation of practices that
manage potential sources of stormwater pollution at a facility with the goal of preserving
the integrity of receiving waters.
In the State of North Carolina, The North Carolina Department of Environmental
Quality's (NCDEQ) Division of Energy, Mineral, and Land Resources (DEMLR) is
responsible for issuing NPDES Stormwater permits. The new 4 MGD facility will be
covered under the NCGI 1 General Permit to authorize the discharge stormwater from the
facility. DEMLR has issued the latest No. NCGI I revision of the NPDES General
Permit, which has an effective date of March 1 st, 2024, and will expire on February 28th,
2029.
As part of the permit requirements, facilities must prepare a Stormwater Pollution
Prevention Plan (SWPPP). The SWPPP is to be a living document that records the
selection and design of control measures that will be utilized at a facility to manage
stormwater discharge. The SWPPP must reflect the most current site layout, operating
procedures, and control measures/practices within the covered facility. Facility operators
are required to implement the contents of the SWPPP, which must consistently align with
the requirements of the NCGI 1 General Permit. Failure to comply with the requirements
of the permit can result in civil/criminal enforcement action, permit termination, permit
revocation and reissuance, or future denial of a renewal application.
The SWPPP included herein has been prepared for the newly constructed 210 WWTF in
adherence to the requirements of the No. NCG11 General Permit. This SWPPP includes
the following:
• Identification of the party responsible for implementation and revision of the
SWPPP.
• A description of the characteristics of the facility and overview of the activities
that occur on a routine basis.
• A description of the drainage system, stormwater control measures, and
stormwater outfalls at the facility.

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210 Wastewater Treatment Facility 2024 industrial SWPPP
• A description of potential sources of pollutants within the facility including
spills and leaks, chemical storage, and other potential sources that may
contribute to unauthorized discharges.
• A description of the control measures (CM) that will be implemented to prevent
or manage unauthorized discharges from the facility.
• A description of administrative aspects including inspections, monitoring,
training, recordkeeping, and reporting procedures.
As required in part I-1 of the NCGl1 General Permit for new facilities, this SWPPP will
be implemented prior to the beginning of stormwater discharges at the facility, and will
be updated, at minimum, on an annual basis.
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
2. Background
Under the Clean Water Act (CWA) of 1972, the EPA developed and implemented
NPDES programs intended to control water pollution from several program areas, i.e.,
municipal, industrial, and aquacultural, to protect waters of the United States. The
NPDES Stormwater Program specifically regulates stormwater discharges from
Municipal Separate Stormwater Sewer Systems (MS4s), construction activities, and
industrial activities. Operations that involve any of these activities may have to obtain an
NDPES permit to be authorized to discharge stormwater to waters in the United States.
For industrial activities, EPA regulations (40 CFR 122.26) identifies several categories
that must be covered under an NPDES Permit, such as Light Manufacturing, Steam
Electric Power Generating Plants, Transportation Facilities, and Treatment Works. Under
the Treatment Works category, any industrial activity that involves the treatment of
domestic sewage sludge, or wastewater treatment device used in the storage, treatment,
recycling, reclamation of municipal or domestic storage, with a design flow of 1.0 MGD
or more, must be regulated under an NDPES General Permit.
Johnston County owns, operates, and maintains the Central Johnston County Regional
WWTF, which is a 9.5 MGD wastewater collection and treatment facility that serves the
towns of Smithfield, Selma, Pine Level, Four Oaks, as well as portions of Central
Johnston County and East Clayton Industrial Area. To accommodate a growing service
area, Johnston County is constructing a new 4 MGD WWTF, known as the 210
Wastewater Treatment Facility, adjacent to the County Landfill, which will increase the
County's wastewater treatment capacity from 9.5 MGD to a combined 13.5 MGD. As
designed, the new facility will discharge stormwater to an Unnamed Tributary of Middle
Creek, and thus must receive NDPES permit coverage under the Treatment Works
Category.
The EPA delegated permitting authority of the NPDES program to most States. In North
Carolina, NCDEQ's DEMLR is responsible for issuing NPDES Permits. DEMLR has
issued the No. NCG1 1 General Permit, which has an effective date of March 1 st, 2024,
and expires on February 28th, 2029. To obtain coverage under the NCG11General
Permit, permittees must develop and implement a fully compliant SWPPP and submit a
Notice of Intent (NOI) application with the appropriate application fees.
The intent of the SWPPP is to document measures that will be taken by the facility to
prevent, to the extent economically feasible and logistically practical, any unauthorized
discharge of pollutants to receiving waters. The SWPPP records the selection, design, and
installation of control measures, among other measures required by the permit. The
SWPPP must reflect the most current site layout, operating procedures, and maintenance
and stormwater inspection practices within the facility. Facility operators must ensure
that the SWPPP is always aligned with the requirements of the General Permit to avoid
causing a violation of surface water quality standards. Non-compliance with any
conditions of the General Permit may constitute a violation of the Clean Water Act
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
(CWA) and NPDES Permit Programs, and may lead to enforcement actions, termination
of permit coverage, or denial of a permit renewal application.
3. Responsible Party (B-1)
The SWPPP Team at the 210 WWTF is comprised of County employees who meet the
following criteria:
• Have knowledge of daily operations of the facility
• Have attended employee training on the contents of this SWPPP and the
requirements of NCG11 General Permit.
• Have at least a basic understanding of hydrology/stormwater management.
Each team member will play a role in the development, implementation, revision, and
overall coordination of this SWPPP. All team members will be required to attend
employee training, at minimum, on an annual basis and will have access to this SWPPP
for their reference throughout the permit term. In the event a team member is unable to
perform their role, their task would be delegated to other team members or a temporary
substitute will be recruited from facility staff and trained to perform said role. The
following tables (Table I & Table 2) indicate the key responsibilities and contact
information of the SWPPP Team at the 210 WWTF.
Table 1: Responsibilities of the SWPPP Team
NAME & TITLE RESPONSIBILITIES
Chandra C. Farmer Serve as principal executive/signatory.
• Ensure SWPPP adheres to NCGI I General
Director of Utilities Permit requirements.
• Serve as a Duly Authorized Representative.
Dan Wall • Ensure SWPPP adheres to NCGI 1 General
Assistant Director/ Treatment Permit requirements.
• Review SWPPP when required (minimum
annually)
William A. Denton • Coordinate inspections and monitoring
Plant Manager (ORC) activities and ensure they are completed and
documented in accordance with the
requirements of the SWPPP.
David Paul Allen • Review SWPPP when required (minimum
annually).
Assistant Superintendent • Oversee daily facility activities and ensure
(ORC Backup) operations comply with the SWPPP.
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210 Wastewater Treatment 1.. !'' 20241ndustrial SWPPP
NAME & TITLE RESPONSIBILITIES
• Ensure all control measures are fully
functional and any corrective actions are
within the timeline specified in the SWPP.
• Install control measures and ensure they are
fully functional during WWTF operations.
• Conduct control measure maintenance and
Shift Operator (s) perform and document all corrective actions
taken at the facility.
• Perform inspections and monitoring as
required by the SWPPP.
Table 2: Contact Information for Key SWPPP Team Members
NAME& TITLE CONTACT INFORMATION
Address: 309 E. Market Street, Smithfield, NC 27577
Chandra C. Farmer Telephone: [phone]
Director of Utilities
Email: [e-mail]
Address: E Huntley Street, Smithfield, NC 27577
Dan Wall Telephone: [phone]
Plant Manager
Email: [e-mail]
Address: 1000 E. Huntley Street, Smithfield,NC 27577
William Denton Telephone: [phone]
Plant Supervisor
Email: [e-mail]
Address: 1000 E. Huntley Street, Smithfield,NC 27577
Paul Allen Telephone: [phone]
Chief Operator
Email: [e-mail]
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210 Wastewater Treatment Facility 2024Industrial SWPPP
4. General Location Map (13-2)
The General Location Map is included in this SWPPP as Attachment A.
The General Location Map identifies the following:
• Facility location in relation to transport routes and surface waters
• The name of the receiving water (Unnamed Tributary of Middle Creek)
• Any impaired receiving waters based on the 2022 Final Integrated Report
o The unnamed tributary to Middle Creek is unclassified.
o Middle Creek(AU 8195), the next classified water downstream, is
not listed as impaired, but is listed as IR category 3a as having
inconclusive data regarding fecal coliform.
• The facility is within the Neuse River Basin, tributary to the Neuse River
Estuary, which has a TMDL for total nitrogen.
5. Site Map (13-3)
The Site Map is included in this SWPPP as Attachment B.
The site map identifies the following:
• Site property boundary
• Site topography
• Buildings, roads, parking areas and other built-upon areas
• Industrial activity areas
• Stormwater discharge outfalls and a table of latitudes and longitudes
• Delineated drainage area for each outfall and a table of impervious percentage
for each drainage area
• Stormwater control measures
• All stormwater collection/ drainage features, structures, and direction of flow
• On-site and adjacent surface waters and wetlands
• A graphic scale and north arrow
The site map will be updated following any changes at the facility that impacts any of the
items mentioned above.
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
6. Description of Industrial Processes (B-4)
All industrial activities at the 210 WWTF facility relate to wastewater treatment. As
designed, the facility will treat 4.0 MGD of wastewater using several treatment processes
including screening, settling, filtration, sodium hypochlorite disinfection, and aeration.
The Preliminary Treatment Facility (PTF) is located onsite with structures for screening,
removing grit, settling, and pumping of wastewater. Outdoor process areas include the
BNR tank, clarifiers, sludge holding tanks, and septage receiving stations. Additional
facilities include a mixed liquor distribution box, two (2) process basins, a blower
building, RAS pump station, disk filters, and effluent pump station. Ancillary facilities
include emergency power facilities, an electrical distribution building, and maintenance
building.
Biosolids or sludge treatment processes utilize the dewatering building with decanting
centrifuge equipment, sludge holding tanks, solids holding tank, and septage receiving
station. In addition to sludge, the solids holding tanks will receive leachate from the
Johnston County Landfill located nearby. Septage delivered to the site will also be
pumped to the solids holding tanks. All tanks are equipped with secondary containment
systems to capture and route all leaks or spills back into the PFT. After treatment, sludge
will be stored in a screenings dumpster located at the septage receiving site. The
dumpster will be emptied by staff and will be combined with the screenings and grit from
the PFT before being trucked to a permitted solid waste landfill facility. During normal
operating conditions, dewatered sludge will be trucked 5 days a week to the Johnston
County Landfill for beneficial use as an alternative daily cover. If the county landfill is
unable accept the material, it will then be trucked to another permitted solid waste
landfill, or to McGill Environmental composting facility, which accepts unstabilized
wastewater treatment residuals and converts it to Class A compost material.
All chemicals used in the wastewater treatment process are stored in chemical storage
tanks or within the chemical feed buildings, away from any potential to be exposed to
stormwater. Chemical deliveries are anticipated to be on a monthly basis and the
chemical receiving station is equipped with secondary containment where any spills will
be captured and routed to the PTF.
A maintenance building located onsite will be used to for general storage of tools and
spare parts to service treatment equipment along with lawn equipment storage. Oil and
grease for process equipment preventative maintenance will be stored in the building in
areas with containment bases or cabinets. All facility vehicles will be taken offsite for
maintenance. There is also no vehicle washing station onsite.
Any municipal waste generated within the facility is stored in waste collection bins
located within buildings. Municipal waste would be collected and transported to the
County landfill on a routine basis.

210 wastewater Treatment Facility 2024 Industrial SWPPP
6.1 Potential Pollutants in Stormwater
Though unlikely, several activities have the potential to release pollutants to the
stormwater system. These include spills at chemical fill stations, septage receiving
stations, and the plant drain pump, spills from overfilling sludge storage or central
equalization tanks, as well as fuel spills from the emergency generator. Table 3 below
lists potential pollutants that may be released at each stormwater outfall at the 210
WWTF.
Table 3: Potential pollutants that may be present in discharge from each stormwater
outfall at the 210 WWTF
Stormwater Outfall Potential Pollutant
• Chemicals from chemical feed station
• Fuel spills from generators
SO-1 • Septage from clarifiers, BNR Basins, disk filters
• Septage leaks from pump stations
SO-2 • Septage from disinfection effluent box
• Spills from dewatering building
• Spills from maintenance building
SO-3 • Vehicular oil leaks from parking lot
• Spills from sludge holding tank
7. Evaluation of Stormwater Outfalls (13-5)
No petition for representative outfalls is currently being requested at the facility. All three
(3) stormwater outfalls (SO) will be sampled, inspected, and monitored per the
requirements of the NCGI I General Permit (SWPPP Section B-12). The SWPPP Team
will perform the follow evaluations at each SO at the facility:
• Analytical monitoring (described further in Section 7.2)
• Qualitative monitoring (described further in Section 7.3)
• Non-Stormwater Discharge Monitoring (described further in Section 7.4)
Evaluations of SOs will be weather dependent i.e., the SWPPP Team will not conduct
any evaluations during adverse weather conditions. Adverse weather conditions are
defined as conditions that are dangerous or create inaccessibility for personnel. These
include flood conditions, high winds, electrical storms, or any other weather event that
threatens the safety and wellbeing of the SWPPP Team personnel. Per NCGI I General
Permit, adverse weather does not exempt this facility from monitoring requirements, so a
substitute evaluation will be conducted during the next qualifying storm event to comply
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
with the permit requirements. If/when encountered, the SWPPP Team will document the
date, time, and a written narrative of the adverse weather and the rationale that prevented
a scheduled evaluation. This documentation will be retained onsite with the SWPPP
throughout the permit term.
7.1 Stormwater Outfall Description
As shown on the Site Map of the facility (Attachment B), there are three (3) total SO at
the facility, which discharges into the Unnamed Tributary of Middle Creek. Brief
descriptions of the areas draining to the SOs are presented in Table 4 below.
Table 4: Descriptions of the areas draining to the stormwater outfalls within 210 WWTF
Stormwater i Drainage Area Description
I _Outfall -ID-1
The drainage area (DA) draining to SO-1 has an area of approximately
6.71 acres and consists of most of the facilities used for wastewater
treatment including BNR basins, secondary clarifiers, disk filters,
SO-1 pump stations, material storage buildings, and disinfection effluent
box. Stormwater runoff in this area is collected via several inlets and
routed to SO-1 located at the southeast corner of the facility near the
Sodium Hypochlorite storage and feed building.
The area draining to SO-2 is approximately 0.89 acres that consists of
a combination of paved roadways and pervious grassed areas. No
SO-2 wastewater treatment process areas are included in this drainage area.
One (1) catch basin collects and routes Stormwater to SO-2, which is
located south of the disinfection effluent box.
The area draining to SO-3 is approximately 2.20 acres and includes one
SO-3 (1) of the three (3) sludge holding tanks, sludge holding tank blower,
dewatering building, the maintenance building, the administration
building and its associated parking lot.
7.2 Analytical Monitoring of Stormwater Discharges
No exemption from analytical monitoring is currently being requested at the facility
(SWPPP Section 13-13). The SWPPP Team will perform analytical monitoring of
Stormwater discharge from each SO during a measurable storm event. A measurable
storm event is defined as any storm event causing stormwater discharge from a SO. For
each measurable storm event sampled, the total rainfall amount (inches) will be
determined and recorded by an onsite rain gauge and regional rain gauge located within
one (1) mile of the facility.
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
Samples will be collected quarterly with a minimum of thirty (30) days between each
sample. The SWPPP Team will commence monitoring efforts during the first measurable
storm event in the monitoring period that occurs during the facility's normal operating
hours. Monitoring periods are as follows:
• January 1 —March 31
• April 1- June 30
• July 1 — September 30
• October 1- December 31
Samples will be collected at the discharge point before the discharge joins or is diluted by
any body of water of substance, which ensures samples are characteristic of the volume
and nature of the discharge. Grab samples will be collected within 30 mins of the
beginning of discharge from a SO and will continue until all SOs have been successfully
sampled.
For each sampled event, the SWPPP Team will complete the Stormwater Discharge
Monitoring Report Form for NCG110000 Treatment Works included in Attachment C.
The form will be completed, signed by the principal executive or duly authorized
representative, scanned, and submitted online to DEMLR via the Stormwater NPDES
Permit Discharge Monitoring Report Upload within 30 days of receiving the sampling
results from the laboratory. The original signed hard copy of the form will also be sent to
the Raleigh Regional Office of DEMLR. If there are instances of no stormwater
discharge in a given sampling period, the SWPPP Team will still complete DMR report
noting "no discharge". In these instances, the DMR will be submitted to DEMLR within
30 days after the end of the monitoring period. The SWPPP Team will also note "no
discharge" in the SWPPP and in DEMLR's Annual Summary Data Monitoring Report
Form, which will be completed with each annual review/update of the SWPPP (See
Section 14.2).
Collected samples will be analyzed and reported for the following parameters:
• Fecal Coliform
• pH (within 15 minutes of collection)
• Total Suspended Solids (TSS)
• Non-polar oil and grease
Collected samples will be sent to one the following laboratories for analysis:
Laboratory: Johnston County Wastewater Laboratory
Address: 200 East Huntley Street, Smithfield, NC 27577
Telephone: [phone]
Laboratory: MeriTech, Inc
Address: 642 Tamco Road, Reidsville, NC 27320
Telephone: [phone]
Email: [e-mail]
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
No velilcle maintenance is done onsite, ffieretore the permit requirement of tracking and
recording the average monthly usage of new motor and hydraulic oil used for vehicle
maintenance at the facility is not applicable for the 210 WWTF.
7.3 Qualitative Monitoring of Stormwater Discharges
Qualitative monitoring will be conducted to evaluate the effectiveness of the control
measures implemented as described in this SWPPP. Qualitative monitoring serves as an
inexpensive means of detecting new sources of stormwater pollution and prompt timely
responses to implement the appropriate control measures. If significant stormwater
contamination is detected, the SWPPP Team will begin an immediate investigation to
find the cause of the contamination. Thereafter, an evaluation of the appropriate
corrective actions will follow, and the necessary corrective measures will be taken within
sixty (60) days of first discovery of the contamination. A written record of the
investigation, evaluation, and corrective actions taken will be retained onsite with the
SWPPP.
Qualitative monitoring of stormwater discharge will be done via visual inspection of each
SO at the facility. All visual inspections will be performed by SWPPP Team during the
facility's normal operating hours and will be concurrent with the analytical monitoring of
SOs (Section 7.2). Visual inspections will be recorded on the Stormwater Discharge
Outfall Qualitative Monitoring Report (QMR) (Attachment C). One (1) form will be
completed for each SO.
7.4 Non-Stormwater Discharges
Each outfall will be evaluated on an annual basis for the present non-stormwater
discharges. If non-stormwater discharges are identified, the source of the discharge would
be investigated to determine if the source is allowable by rule or other permit or if
corrective actions are necessary to terminate the discharge. Per the NCGI 1 General
Permit, the following non-stormwater discharges qualify as "Allowable Non-Stormwater
Discharges" and will be authorized to be discharged from the facility into surface water:
• All discharges authorized by a non-stormwater NPDES permit.
• Uncontaminated groundwater.
• Springs.
• Irrigation waters.
• Air condition condensate without added chemicals.
• Discharges from uncontaminated potable water sources.
• Water from foot drains.
• Flow from riparian habitats and wetlands.
• Waterline and fire hydrant flushing.
• Discharge resulting from emergencies at the facility:
o Fire-fighting,
o Emergency shower,

210 Wastewater Treatment Facility 2024 Industrial SWPPP
o Emergency eye wash.
All instances of non-stormwater discharge would be recorded in a written summary and a
certification statement (Attachment D) will be signed by principal executive or duly
authorized representative identified in Section 14.1. All written summaries will be
retained onsite with the SWPPP.
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210 Wastewater Treatment Facility 2024 Industrial SWPPP
8. Stormwater BMP Summary (B-6)
Stormwater BMPs at the 210 WWTF focus on nonstructural practices to minimize
exposure and transport of materials. Nonstructural BMP practices include:
• Regular inspection and maintenance of industrial equipment
• Regular inspection and maintenance of stormwater drainage networks
• Ensure proper storage of materials and substances i.e., contained, covered, and
away from exposure to Stormwater.
• Ensure proper material handling practices are employed by staff
• Ensure proper disposal practices are being employed by staff
• Ensure any spill or leaks are collected and disposed of instead of being washed
down stormwater drainage structures.
• Onsite trash and debris collection and disposal
• Employee trainings to raise awareness of stormwater pollution concerns.
• Maintaining vegetative buffer between SO and surface waters, which will
provide some stormwater treatment.
There are currently no structural BMPs being implemented at the facility. In the event
non-structural BMPs become inadequate for preventing polluted discharge as
ascertainable by SO monitoring, appropriate structural practices will be employed at the
facility to prevent polluted discharge from the facility. These may include:
• Inlet protection devices
• Stormwater control measures such as infiltration practices, retention basins, etc.
to treat Stormwater before discharge.
There will be no vehicular maintenance activities onsite and thus no associated BMPs.
9. Secondary Containment Plan (B-7)
All bulk storage of liquid materials at the 210 WWTF will have Secondary Containment
to provide spill containment during treatment operations. All containment systems are
curbed and graded to drainage inlets which flow by gravity to a drain pump station. All
drainage entering the drain pump station is discharged to the PTF for treatment. In
addition, tanks are equipped with instrumentation and controls that prevent overfilling of
tanks.
Secondary containment systems are implemented at the following locations at the 210
WWTF:
• Two (2) chemical buildings i.e., one containing sodium hypochlorite and the
other containing MicroC, polyaluminum chloride, caustic,
• The dewatering building, which contains polymers.
• Generator which contains fuel.
- ----------- - ----- - ------ -
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210 Wastewater Treatment Facility 2024Industrial SWPPP ,
Although unlikely, any accumulated stormwater observed onsite will be visually
inspected by the SWPPP Team for color, foam, outfall staining, visible sheens, and dry
weather flow prior to release from the facility. All releases from secondary containment
systems will be recorded and retained onsite with this SWPPP for a period of five (5)
years. Records will include:
• The name and title of the individual that made the observation
• A description of the accumulated stormwater found onsite
• Date and time of the release
All secondary containment systems will be established prior to the beginning of
discharges from the facility. no secondary containment devices are connected to the
stormwater conveyance system and there are no hazardous substances stored onsite.
10. Spill Prevention and Response Procedures (B-8)
Leak and spill prevention at the 210 WWTF will focus on personnel training, performing
scheduled maintenance and ensuring appropriate material handling practices are being
employed at the facility. All employees will be trained or will be made aware of the spill
response procedure and have access to contact information for the appropriate personnel,
emergency response agencies, and regulatory agencies. Contact information will be
posted at strategic locations throughout the facility and will be made available to all
employees.
All industrial equipment related to wastewater treatment system will be inspected and
maintained on a routine basis to ensure proper working function and to minimize the
potential defects that may lead to a leak or spill.
All employees will be required to utilize careful and secure material handling techniques
when lifting, transporting, refilling, removing, emptying, etc. any materials that may
contribute pollutants to stormwater. All containers susceptible to spill will be clearly and
plainly labeled to encourage cautious handling.
In the event that a spill occurs, the following spill prevention and response procedure will
ensue:
1. Spill location and source will be identified.
2. All pumps, valves, gates or any other contributor to the spill will immediately be
switched off and the operator in responsible charge will be notified.
3. The operator will then contact other staff members and coordinate the procurement
of equipment needed to contain and clean up the spill.
4. In the event a small spill or leak occurs, spill kits located strategically throughout
the facility will be used to ensure rapid and thorough removal of the spill. Spill kits
contain absorbative materials that absorb and retain spills or leaks for proper
14

210 Wastewater Treatment Facility 2024 Industrial SWPPP
disposal-Emp oyI ees wilFEe proliiE—ited—from washing away spine -material-For
large spills, the response procedure depends on the location of the spill within the
facility. The Operator will procure outside equipment and other department
personnel as and if needed. Backhoes may be used to create earthen berms, septic
tank trucks or hydraulic pumps may be used to collect spills and pump it back into
the wastewater treatment train. In the event large spills require additional support,
emergency agencies will be immediately contacted.
5. Once a spill is successfully collected and removed from the site, site restoration will
occur. Any contaminated soils will be disposed and replaced with clean soil.
Vegetated areas that were disturbed will be reseeded to restabilized the area and
prevent erosion.
6. Notification is made to the North Carolina Department of Environmental Quality
within 24 hours, and written notification is made to the Department within 5 days,
with details about the spill, how it was cleaned up and what measures were or will
be put into place to prevent a future similar spill.
11. Solvent Management Plan (B-9)
A solvent management plan is not applicable since no solvents are being used at the
facility.
12. Preventative Maintenance and Good Housekeeping Program (13-
10)
The Preventative Maintenance and Good Housekeeping Program (PMGHP) at the 210
WWTF serves to ensure all industrial equipment, storage and handling areas, disposal
areas, process areas, loading and unloading areas, and any other potential source of
pollutants to stormwater are maintained in proper working condition to minimize any risk
of leaks or other release of pollutants.
Preventative maintenance is prioritized through daily inspections and maintenance of all
equipment, treatment systems, and process areas at the facility. Following inspection, any
areas or equipment where maintenance needs are discovered will be addressed. All
equipment maintenance will be performed by qualified staff who have been trained to
carry out each task. In addition to industrial equipment and process areas, all structures
within the stormwater drainage network will also be regularly maintained to ensure
proper drainage is maintained at the facility. Maintenance of stormwater structures may
include cleaning, repairing, and replacing of inlets, manholes, pipes, and other
stormwater drainage structure or control measure that may be implemented onsite.
A maintenance/calibration log will be completed to document any maintenance and
repair of equipment or stormwater control measure implemented at the facility

210 Wastewater Treatment Facility 2024 Industrial SWPPP '
(Attachment F). The log will be retained onsite with the SWPPP and be available to
DEMLR, upon request, for a period of 5 years from the date of the event or as long as
may be requested by the Director of DEMLR.
Good housekeeping practices at the facility will include the following:
• All areas within the facility will be maintained in a clean, safe, and orderly
manner. Any loose trash or debris is collected and disposed of appropriately.
Waste removal from the facility is carried out on a weekly basis. Between
collection days, debris is stored in covered containers and away from stormwater
catch basins.
• Materials will be properly stored in appropriate containers and will be clearly
labeled. Staff will be trained on the proper material handling protocols to reduce
instances of mishandling, which can lead to spills or other release of
contaminants. All employees will be required to utilize careful and secure
material handling techniques when lifting, transporting, refilling, removing,
emptying, etc. any materials that may contribute pollutants to stormwater. All
containers susceptible to spill will be clearly and plainly labeled to encourage
cautious handling.
13. Employee Training (13-11)
All employees who work in areas where industrial activities may potentially expose
pollutants to stormwater runoff are required to complete training as required by the
NCG11 General Permit. These include inspectors, maintenance personnel, material
handlers, shift operators, superintendent, chief operator, and all members of the SWPPP
Team. Additionally, all contractors working at the facility will be required to attend
employee training and adhere to all stormwater management practices of the SWPPP.
Training will be held for each employee prior to their first day of work at the facility and
on an annual basis thereafter. At minimum, all employees are required to attend training
on an annual basis. Each session will be documented in the Employee Training Log
(Attachment E), which will be kept with the SWPPP onsite at the facility. Trainings will
cover a variety of topics that will be customized to the activities of the facility including
an introduction to stormwater management, spill and leakage response procedures,
emergency response procedures, inspection and monitoring procedures, preventative
maintenance and good housekeeping program, material management practices, personnel
protective equipment among other topics. The contents of this SWPPP will also be
covered in each employee training, and each employee will have access to this SWPPP
for reference throughout the duration of the permit.
16

• 210 Wastewater Treatment Facility 2024 Industrial SWPPP
14. Permit Administration
14.1 Signatory Requirements
All applications, reports, and any other information that must be submitted to DEMLR
will be signed and certified by a principle executive officer using the certification
statement in Attachment D. The principal executive officer or other ranking elected
official will identify a person who has responsibility for the overall operation of the
facility, to serve as a duly authorized representative. A duly authorized representative can
also serve to sign and certify documents that will be submitted to DEMLR. Once
identified, a written authorization notice will be submitted to DEMLR. If changes to
authorization must be made, a new written authorization notice will be submitted to the
Director of DEMLR prior to or with any documentation that must be signed and certified
before being submitted to DEMLR. Table 5 below identifies the individuals that will
serve as the Principal Executive Officer and the Duly Authorized Representative for the
210 WWTF.
Table 5: The principal executive officer and the duly authorized representative
NAME, POSITION ROLE
Chandra C. Farmer Director of Utilities Principal Executive Officer
Dan Wall Assistant Director/ Duly Authorized
Treatment Representative'
1. Written notice must be sent to DEMLR identifying the duly authorized
representative.
14.2 Annual SWPPP Review and Update (B-14)
This SWPPP is intended to serve as a living document that will be regularly reviewed and
updated by the appropriate SWPPP Team member to ensure it accurately reflects the
latest conditions at the facility. Any modification to facility operations, treatment
processes, material storage, stormwater control measure implementation, or any other
change that may impact compliance with the NCG 11 General Permit, will prompt
amendment to the SWPPP as quickly as is practicable. On an annual basis, the entire
SWPPP and associated documents will be reviewed, updated if necessary, and verified
for accuracy and compliance with the NCGI I General Permit. The SWPPP Amendment
Log (Attachment E) will be completed for each amendment to the SWPPP.
Examples of changes that require updates to the SWPPP include but are not limited to
following:
• Changes to the members of the SWPPP Team.
17

210 Wastewater Treatment Facility 2024Industrial SWPPP
• Changes in industrial activities i.e., facility design, operation, maintenance, etc.
that can impact the quantity and/or nature of pollutants exposed to stormwater
runoff.
• Changes to control measures implemented at the facility.
• Notice to modify from SWPPP from DEMLR
• Revisions to the SWPPP associated with Corrective Actions
• Must include newly signed certification statement (Attachment D)
Additionally, SWPPP updates will include a review and comparison of sample analytical
data to benchmark value over the previous year, including a discussion about tiered
response status if applicable. The SWPPP Team will use DEMLR's Annual Summary
Data Monitoring Report form to complete the annual report (Attachment C).
14.3 Annual Fee Requirement
The required annual fees will be paid within thirty (30) days of being billed by DEMLR
to avoid any potential of revocation of NCGI I General Permit coverage. Payment shall
be made online using Stormwater ePayments. Questions on invoice, billing, or ePayment
System will be directed to NCDEQ's Stormwater Billing Assistant. Contact information
for the current Stormwater Billing Assistant is available in Table 6.
Table 6: Contact information for invoice and e-payment questions
NAME & TITLE CONTACT 1NFORMATION
Tev Holleman Telephone: [phone]
Stormwater Billing Assistant Email: [e-mail]
14.4 Notice to Modify the SWPPP (B-15)
Any notification from the Director, or other authorized representative from DEMLR, that
indicates that this SWPPP does not meet minimum requirements of the NCGI 1 General
Permit will be addressed in a timely manner. Within 30 days of receiving such notice, a
time schedule will be sent to the Director to denote when the SWPPP will be updated. All
required SWPPP updates will be made in a timely manner, and a certification statement
(Attachment D), submitted in writing by a principal executive of the facility or duly
authorized representative, will be sent to Director to attest that the SWPPP meets the
minimum requirements of the NCG11 General Permit. All communications between
DEMLR and the facility regarding the modification of the SWPPP will be kept onsite,
with the SWPPP, for the duration of the permit term.
18

210 Wastewater Treatment Facility 2024 Industrial SWPPP
14.5 Planned Changes to the 210 WWTF
All planned changes at the 210 WWTF will be conducted in a manner that complies with
the conditions of the NCGI 1 General Permit. All reasonable steps will be taken to
prevent any adverse effects on human health and the environment. In the event a planned
change may alter the generation or constituents of the pollutants in stormwater discharge,
the principal executive officer or duly authorized representative (identified in section
14.1) will submit written notice to the Director of DEMLR, as soon as is practicable. Any
requested modifications made by DEMLR will be addressed in accordance with section
14.4 of this SWPPP.
14.6 Duty to Provide Information and Consent to Entry and Facility Inspection
Any information requested by DEMLR to determine compliance with the NCGI 1
General Permit will be provided as soon as is practicable and within a reasonable
timeframe. This includes but is not limited to any copies of inspection, monitoring, or
other records required by the NCGI 1 General Permit. In the event a submitted report
contains inaccurate or outdated information, the Director will be immediately notified,
and a corrected or updated report will be promptly submitted to supersede the previous
submission.
Additionally, the Director of DEMLR or any other authorized representative or
contractor, upon presentation of credentials or other documents required by law, will be
allowed, at reasonable times, to enter the facility to inspect industrial activities at the
facility. This includes inspecting equipment, practices and operations related to the
NCGI 1 General Permit. Samples or monitoring may also be conducted for the purpose of
assuring compliance with the permit. The Director or authorized representative will be
allowed to access records related to the NCGI 1 General Permit.
14.7 SWPPP Documentation (B-16)
Copies of the SWPPP and all pertinent documents (listed below) will be maintained at the
facility for the duration of the permit term, which is a minimum of five (5) years, or as
long as may be requested by the Director or an authorized representative of DEMLR. The
SWPPP Certification statement(Attachment D) will be signed by a responsible facility
representative to authorize the latest version of the SWPPP. These documents will be
made available electronically to DEMLR upon request.
In addition to the SWPPP, copies of the following documents will be maintained onsite:
• Permit Records
o Notice of Intent (NOI)
o NCGI1 General Permit
o Any communications received from the DEMLR.
• Records of spills and leaks

210 Wastewater Treatment Facility 2024 Industrial SWPPP
o Date of incidence that resulted in discharge of pollutants.
o Circumstances that caused the spill or leak.
o Actions taken in response to the spill or leak.
o Measures taken to prevent recurrence of spill or leak.
• Records of inspection
o Routine facility inspection reports
o Quarterly visual inspection reports
o Annual reports
o Description of deviation and the reason for any deviations (e.g.
adverse weather) in inspection schedule
• Records of monitoring and sampling results
o Data collection forms
o Laboratory results
o Discharge monitoring reports (DMRs)
• Records of maintenance to stormwater control measures
o Date when maintenance needs were discovered.
o Date when maintenance was performed and justification if there was
an extended maintenance schedule.
o Repairs needed to return stormwater control measures to proper
function.
o Date when control measures returned to full function.
• Records of corrective actions
o Report of corrective action taken
• Records of employee training.
o Dates of employee training
o Person who performed training
o Training topics
o List of employees who attended training.
• Records of modifications to the SWPPP
o Communications sent to and received from DEMLR.
o SWPPP Amendment Log (Attachment G)
20

210 Wastewater Treatment Facility 2024 Industrial SWPPP
ATTACHMENTS

210 Wastewater Treatment Facility 2024 Industrial SWPPP ,
ATTACHMENT A
General Location Map

'
The facilityIs within the Nauss River Basin,tribute to the ce o7 y
, � iY
Neuse River Estuary,which has a TMDL for total tributary
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210 WWTF SITE
MIDDLE CREEK
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I JOHNSTON COUNTIff NORTH CAROLIN\AA
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FAO,ME -PSA USGS.EPA,NPS USEW
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UNNAMED TRIBUTARY
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MIDDLE CREEK
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Unnamed Tributary
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— Drainage Areas am n
Property Boundary
t P` V ,-Esfi'Community Maps Con[b tors,Duke Unly fS ty,State Or NONb CAOlina DOT,Esn,T..T.,Garton,5.kGNpn GeOTecbn.1,g s,fOc METVNASA,
Site BUA 2 by zr zrp ti o U54iS,EPA,PIPS,US Census 6Urwo,USDA,USFWS
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" Hazen DEPARTMENTNT PUBLIC UTILITIES
JOHNSTON COUNTY,NORTH CAROLINA 0.:30a21-0z5
i011 WESTCHASE BOULEVARD,SUITE 505GENERAL LOCATION MAP2'" imo a RALEIGH,NORTH CMOUNA ZTBH 210 WASTEWATER TREATMENT FACILITY
LICENSE NO.:c-0s51 BIOSOLIDS DEWATERING FACILITIES AND mA
1:14,837 SOLIDS HOLDING IMPROVEMENTS

210 Wastewater Treatment Facility 2024 Industrial SWPPP ,
ATTACHMENT B
Site Map

210
1 u.r22°�q /v zW ♦1 501 SO-2 S03
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Latitude 35.5063' 35.5068' 35.W74°
v
1 y1s 1>e aG� _ % , Longtude 78.4263' 78.4263' 78.4251'
p � I Drainage Area 6.87 ac 0.88 ac 3.02 ac
Impervious Area 39% 32% 60%
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235 Pump Station Storage and ♦♦♦
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Esri Community Maps Contnbwt Duke University.lobnnon County.Stateof Nnrtb Carolina DOi,Av OpenSVee[Map.Microsoft,fsn,TomTom.Garmin.
SafeGrapV,GeoTKtnologlez Inc,MET/NASA USGS,EPA NPS.US Census Bureau.USDA,USEWS
DATE:WRIL 2024
Hazen JOHNSTON DEPARTMENT PUBLIC UTILITIES
COUNTY,
SITE MAP HPIEY,NORTH CAROLINA N NO.:30621-025
_
Z no 135 0 4011 WESTCHASE BOULEVARD.SURE 500
RALEIGH,NORTH CAROLINA 21907 210 WASTEWATER TREATMENT FACILITY
12000 LICENSE NO. p391 BIOSOLIDS DEWATERING FACILITIES AND A1YchnaidS
SOLIDS HOLDING IMPROVEMENTS

210 Wastewater Treatment Facility 2024Industrial SWPPP ,
ATTACHMENT C
Forms
Stormwater Discharge Monitoring Report Form
Stormwater Discharge Qualitative Monitoring Report Form
Annual Summary Data Monitoring Report Form

NCDEQ Division of Energy, Mineral and Land Resources
Discharge Monitoring Report (DMR) Instructions
Completing the DMR Form:
1. The total precipitation shall be recorded using data from an on-site rain gauge.
Unattended sites may be eligible for a waiver of the rain gauge requirement if
approved in writing by the applicable DEMLR Regional Office.
2. Sampling results for each parameter shall be compared to the benchmark values for
the appropriate receiving stream classification (listed in parentheses).
3. Monitoring results shall be in numerical format; below detection limit (BDL), non-
detect (ND) or other non-numerical formats are not acceptable. When results are
below detection limits, they must be reported in the format "<XX mg/L," where "XX" is
the numerical detection limit in mg/L. Where fecal coliform results (if applicable)
exceed the dilution upper limit, the result should be reported as ">XX".
4. For sampling periods with no discharge at any single outfall, the DMR report is still
required to be completed and submitted.
5. If the sampled storm event coincides with a known non-stormwater discharge that is
deemed permitted under 15A NCAC 02H .0106, then this shall be noted on the DMR in
the notes section.
6. If any pollutant is sampled more frequently than required by the general permit and at
a sampling location covered under the general permit, then per permitting
requirements, those sampling results must be submitted on a DMR.
Submitting the DMR Form:
Do not send paper DMRs to the Central Files.
1. Complete, sign, scan and submit the DMR via the Stormwater NPDES Permit Data
Monitoring Report (DMR) Upload form within 30 days of receiving sampling results.
2. Mail the original, signed hard copy of the DMR to the appropriate DEMLR Regional Office.

NCDEQ Division of Energy, Mineral and Land Resources
Stormwater Discharge Monitoring Report(DMR) Form for NCG110000
Treatment Works (WWTP> 1 MGD)
Click here for instructions
Complete,sign,scan and submit the DMR via the Stormwater NPDES Permit Data Monitoring Report(DMR) Upload form within
30 days of receiving sampling results. Mail the original,signed hard copy of the DMR to the appropriate DEMLR Regional Office.
Certificate of Coverage No. NCG11 Person Collecting Samples:
Facility Name: Laboratory Name:
Facility County: Laboratory Cert. No.:
Discharge during this period:❑Yes ❑ No (if no,skip to signature and date)
Has your facility implemented mandatory Tier response actions this sample period for any benchmark exceedances?❑Yes ❑ No
If so,which Tier(I, II,or III)?
A copy of this DMR has been uploaded electronically via https:/Iedocs.deg.nc.gov/Forms/SW-DMR ❑Yes [] No
Date Uploaded:
Analytical Monitoring Requirements for Vehicle&Equipment Areas—Benchmarks in(Red)
Parameter Parameter Outfall Outfall Outfall Outfall Outfall
Code
N/A Receiving Stream Class
N/A Date Sample Collected MM/DD/YYYY
46529 24-Hour Rainfall in inches
C0530 TSS in mg/L(100 or So*)
00552 Non-Polar Oil&Grease in mg/L(15)
NCOIL Estimated New Motor/Hydraulic Oil
Usage in gal/month
"Outfalls to Outstanding Resource Waters(ORW),High Quality Waters(HQW),Trout Waters(Tr)and Primary Nursery Areas(PNA)
have a benchmark TSS limit of 50 mg/L.All other water classifications have a benchmark of 3o0 mg/L
Notes(optional):
N certify by my signature below,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 forgathering 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."
Signature of Permittee or Delegated Authorized Individual Date
Email Address Phone Number

Environmental
Quality
Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report
For guidance on filling out this form,please visit https://deq.nc.gov/about/divisions/energy-mineral-land-resources/
npdes-stormwater-gps
Permit No.: N/C/ / / / / / / / or Certificate of Coverage No.: N/C/G/
Facility Name:
County: Phone No.
Inspector:
Date of Inspection:
Time of Inspection:
Total Event Precipitation(inches):
____..... .......... ........... ................ _------_— _.....
a All permits require qualitative monitoring to be performed during a"measurable storm event."
1 A "measurable storm event'is a storm event that results in an actual discharge from the permitted site
outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-hour storm
interval does not apply if the permittee is able to document that a shorter interval is representative for
local storm events during the sampling period,and the pemrittee obtains approval from the local DEMLR
Regional Office.
By this signature, I certify that this report is accurate and complete to the best of my knowledge:
(Signature of Permittee or Designee)
1. Outfall Description:
Outfall No. Structure(pipe, ditch, etc.):
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
Page 1 of 2
SWU-242,Last modified 06/01/2018

2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.)and tint
(light, medium, dark) as descriptors:
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak
chlorine odor, etc.):
4. Clarity: Choose the number which best describes the clarity of the discharge,where 1 is clear
and 5 is very cloudy:
1 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where I is no solids and 5 is the surface covered with floating solids:
1 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 3 4 5
7. Is there any foam in the stormwater discharge? 0 Yes Q No.
8. Is there an oil sheen in the stormwater discharge? QYes Q No.
9. Is there evidence of erosion or deposition at the outfall? O Yes Q No.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe
Note: Low clarity, high solids, and/or the presence of foam, oil sheen,or erosion/deposition may be
indicative of pollutant exposure. These conditions warrant further investigation.
Page 2 of 2
SWU-242,Last modified 06/01/2018

Stormwater Discharge Outfall (SDO)
Qualitative Monitoring Report Supplement SWU-242A:
Guidance for Rating Stormwater Discharge
This supplement is intended only as a guide for rating visually observed parameters on a scale of
1-5. The inspector should use best professional judgment when characterizing the quality of
stormwater discharge. Also, the pictures included here do not necessarily show stormwater
discharges but serve to illustrate the characteristics described.
Clarity
(1 is clear, and 5 is very opaque or cloudy)
au�
A
f3;
1 3 5
Floating Solids
(1 is no solids,and 5 is the surface covered
with floating solids or significant trash/debris)
i
1 3 5
Page 1 of 10
swu-zazA-oeiaos

Suspended Solids
(1 is no solids, and 5 is extremely muddy or clouded with other particles)
r ,
Ili
f
1 3 5
Tannic Water
Water naturally high in tannins in the eastern part of North Carolina may still have low amounts
of suspended solids and high clarity but not appear"clear"because of coloration. The examples
below will help rate discharges that must be observed in tannic waters.
Clear tannic water may look like tea or coffee, but waters that look more "milky" or like
"chocolate milk" have less clarity and higher suspended solids.
Suspended Solids/Clarity in waterbodies naturally high in tannins
*�` v
1 / 1 313 515
Page 2 of 10
SWU-242A-06I808

Etc mple 1
d.
S i
tr
1. Outfall Description: Example 1 of 4
Outfall No. 001 Structure(pipe,ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors (red,brown,blue, etc.) and tint
(light, medium, dark) as descriptors: light brown
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 O 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge, where 1 is no solids and 5 is extremely muddy:
l 2 O 4 5
Page 3 of 10
SWU-242A-061808

Example 1 of 4,cont.
Possibly small amount of
7. Is there any foam in the stormwater discharge? Yes No foam near pipe outlet.
S. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No Deposition of sand to the
right of pipe outlet.
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
Page 4 of 10
SWU-242A-061808

Example 2
r to o
1. Outfall Description: Example 2 of 4
Outfall No. 001 Structure(pipe, ditch, etc.) Ditch
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.)and tint
(light,medium,dark) as descriptors: medium gray-green
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil, weak
chlorine odor, etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge, where 1 is clear
and 5 is very cloudy:
1 O 3 4 5 Note in lower right corner of picture, leaf
shadow is visible on the bottom of outlet.
Clarity decreases beyond outlet.
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
1 O 3 4 5 Floating solids observed here are mostly
tree debris that fell in after discharge.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where I is no solids and 5 is extremely muddy:
Solids have settled out near outfall and are
1 O 3 4 5 more"dissolved"out in the water near the
[op of the picture(where water appears
more gray). At the outlet,there are not any
swirls,clouds,or suspended particles.
Page 5 of 10
SWU-242A-061808

Example 2 of 4,cont. ,
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe Some displacement of gravel and sediment observed at the outfall. Also lots of solids
that have settled. The water becomes more turbid/cloudy beyond the outfall(i.e.,clarity decreases).
Evidence of excessive solids being carried into receivingwater.
ater.
This example illustrates how additional information in number 10. can be
important to characterizing stormwater discharge impacts.
Page 6 of 10
SWU-242A-061808

Example 3
mr.
1. Outfall Description: Example 3 of 4
Outfall No. 001 Structure(pipe,ditch, etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors(red,brown,blue, etc.)and tint
(light,medium,dark) as descriptors: medium brown/tan
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil, weak
chlorine odor,etc.): oily smell
4. Clarity: Choose the number which best describes the clarity of the discharge, where I is clear
and 5 is very cloudy:
1 2 3 � 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stormwater discharge, where 1 is no solids and 5 is the surface covered with floating solids:
1 2 3 O 5 Rating based on amount of scum/oil
covering surface,not tree debris.
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where 1 is no solids and 5 is extremely muddy:
1 2 O 4 5
Page 7 of 10
SWU-242A-061808

Example 3 of 4, cont. r
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
to. Other Obvious Indicators of Stormwater Pollution:
List and describe Oil and scummy substance floating on top. Dead duck found.
Page 8 of 10
SWU-242A-061808

' Example 4
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1. Outfall Description: Example 4 of 4
Outfall No. 001 Structure(pipe,ditch,etc.) Pipe
Receiving Stream:
Describe the industrial activities that occur within the outfall drainage area:
2. Color: Describe the color of the discharge using basic colors(red,brown,blue,etc.) and tint
(light, medium, dark) as descriptors: clear
3. Odor: Describe any distinct odors that the discharge may have(i.e., smells strongly of oil,weak
chlorine odor,etc.): none
4. Clarity: Choose the number which best describes the clarity of the discharge,where I is clear
and 5 is very cloudy:
O 2 3 4 5
5. Floating Solids: Choose the number which best describes the amount of floating solids in the
stonnwater discharge,where 1 is no solids and 5 is the surface covered with floating solids:
O 2 3 4 5
6. Suspended Solids: Choose the number which best describes the amount of suspended solids in
the stormwater discharge,where I is no solids and 5 is extremely muddy:
O 2 3 4 5
Page 9 of 10
SWU-242A-061808

Example 4 of 4,cont. ,
7. Is there any foam in the stormwater discharge? Yes No
8. Is there an oil sheen in the stormwater discharge? Yes No
9. Is there evidence of erosion or deposition at the outfall? Yes No
10. Other Obvious Indicators of Stormwater Pollution:
List and describe N/A
Page 10 of 10
SWU-242A-061808

STORMWATER DISCHARGE OUTFALL (SDO)
ANNUAL SUMMARY DATA MONITORING REPORT (DMR) / SPPP Annual Update DATA REVIEW FORM
Calendar Year
Individual NPDES Permit No. NCS❑❑❑❑❑❑ or
Certificate of Coverage (COC) No. NCG❑❑❑❑❑❑
This monitoring report summary of the calendar year should be kept on file on-site with the facility SPPP.
Facility Name:
County:
Phone Number: ( ) Total no. of SDOs monitored
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total
Rainfall,
inches
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SW U-264 - Generic Annual DMR
Last revised 6/01/2018

Additional Outfall Attachment
Outfall No.
Is this outfall currently in Tier 2 (monitored monthly)? Yes ❑ No ❑
Was this outfall ever in Tier 2 (monitored monthly) during the past year? Yes ❑ No ❑
If this outfall was in Tier 2 last year, why was monthly monitoring discontinued?
Enough consecutive samples below benchmarks to decrease frequency ❑
Received approval from DWQ to reduce monitoring frequency ❑
Other ❑
Was this SDO monitored because of vehicle maintenance activities? Yes ❑ No ❑
Parameter, (units)
Total
Rainfall,
inches
Benchmark N/A
Date Sample
Collected,
mm/dd/yy
SW U-264- Generic Annual DMR
Last revised 6/01/2018

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."
Signature
Date
For questions, contact your local Regional Office:
DEMLR Regional Office Contact Information:
+ win ton+So14
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SMII"`ngton
ASHEVILLE REGIONAL OFFICE FAYETTEVILLE REGIONAL OFFICE MO E REGIONAL OFFt
2090 US Highway 70 225 Green Street 610 East Center Avenue/Suite 301
Swannanoa, NC 28778 Systel Building Suite 714 Mooresville, NC 28115
[phone] Fayetteville, NC 28301-5043 [phone]
[phone]
RALEIGH REGIONAL OFFICE WASHINGTON REGIONAL OFFICE WILMINGTON REGIONAL OFFICE
3800 Barrett Drive 943 Washington Square Mall 127 Cardinal Drive Extension
Raleigh, NC 27609 Washington,NC 27889 Wilmington, NC 28405-2845
[phone] [phone] [phone]
WINSTON-SALEM REGIONAL OFFICE CENTRAL OFFICE
450 llane. Mill Rd, Suite 300 1617 Mail Service Center
Winston-Salem, NC 27105 Raleigh, NC 27699-1617
[phone] [phone]
SW U-264- Generic Annual DMR
Last revised 610112018

210 Wastewater Treatment Facility 2024 Industrial SWPPP
ATTACHMENT D
Certification Statement

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210 Wastewater Treatment Facility 2024Industrial SWPPP
CERTIFICATION STATEMENT
"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 gathered and evaluated 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."
Name: Chandra C. Farmer Title: Director of Utilities
GWrv�an-
Signature: " WN Date: 04/25/24

u
210 Wastewater Treatment Facility 2024 Industrial SWPPP
ATTACHMENT E
Employee Training Log

210 Wastewater Treatment Facility 2024 industrial SWPPP
EMPLOYEE TRAINING LOG
Training Topic(s):
Trainer(s):
Training Date:
Attendee information
No. Printed Name 1 Title Signature

210 Wastewater Treatment Facility 2024Industrial SWPPP
ATTACHMENT F
Maintenance Log

210 Wastewater Treatment Facility 2024Industrial SWPPP
MAINTENANCE[CALIBRATION O O
Equipment/Control Measure Maintained:
Reason for Maintenance
❑ Routine Maintenance
❑ Discovery of Problem
Date of Maintenance/Discovery:
Description of Maintenance Activity(s):
Equipment/Control Measure Maintained:
Reason for Maintenance
❑ Routine Maintenance
❑ Discovery of Problem
Date of Maintenance/Discovery:
Description of Maintenance Activity(s):

210 Wastewater Treatment Facility 2024 Industrial SWPPP
Equipment/Control Measure Maintained:
Reason for Maintenance
❑ Routine Maintenance
❑ Discovery of Problem
Date of Maintenance/Discovery:
Description of Maintenance Activity(s):
Equipment/Control Measure Maintained:
Reason for Maintenance
❑ Routine Maintenance
❑ Discovery of Problem
Date of Maintenance/Discovery:
Description of Maintenance Activity(s):

210 Wastewater Treatment Facility 2024 Industrial SWPPP
ATTACHMENT G
SWPPP Amendment Log

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210 Wastewater Treatment Facility 2024 industrial SWPPP
SWPPP AMENDMENT LOG
Date of Amendment
No. Description of Amendment prepared by:
Amendment Name s & fide