NCS000250_NCDOT Draft SWMP_20220729

DRAFT STORMWATER MANAGEMENT PLAN
North Carolina Department of Transportation
0L*19I1IIM1]
July 29, 2022
NCDOT
Highway �
Stormwater
PROGRAM

DRAFT STORMWATER MANAGEMENT PLAN
TABLE OF CONTENTS
1.
INTRODUCTION...................................................................................................................4
2.
CERTIFICATION....................................................................................................................5
3
TS4 INFORMATION..............................................................................................................6
3.1
PERMITTED TS4 AREA..........................................................................................................6
3.2
EXISTING TS4 OUTFALL MAPPING PROGRAM.......................................................................6
3.3
RECEIVING WATERS.............................................................................................................6
3.4
TOTAL MAXIMUM DAILY LOADS..........................................................................................6
3.5
ENDANGERED AND THREATENED SPECIES AND CRITICAL HABITAT.......................................7
3.6
NON-STORMWATER DISCHARGES........................................................................................7
3.7
TARGET POLLUTANTS AND SOURCES...................................................................................8
4
STORMWATER MANAGEMENT PROGRAM ADMINISTRATION.............................................10
4.1
ORGANIZATIONAL STRUCTURE..........................................................................................10
4.2
PROGRAM FUNDING AND BUDGET....................................................................................11
4.3
SHARED RESPONSIBILITY...................................................................................................12
4.4
CO-PERMITTEES................................................................................................................12
4.5
MEASURABLE GOALS FOR PROGRAM ADMINISTRATION....................................................13
5
PUBLIC EDUCATION AND OUTREACH PROGRAM................................................................20
6
PUBLIC INVOLVEMENT AND PARTICIPATION PROGRAM.....................................................24
7
ILLICIT DISCHARGE DETECTION AND ELIMINATION PROGRAM............................................27
7.1
TS4 MAPPING PROGRAM..................................................................................................28
7.2
IDDE PROGRAM................................................................................................................32
8
CONSTRUCTION SITE RUNOFF CONTROL PROGRAM...........................................................39
9
POST -CONSTRUCTION CONTROLS......................................................................................47
9.1
BMP RETROFIT PROGRAM.................................................................................................49
9.2
BMP TOOLBOX..................................................................................................................51
9.3
POST -CONSTRUCTION STORMWATER PROGRAM...............................................................53
10
POLLUTION PREVENTION AND GOOD HOUSEKEEPING PROGRAMS.....................................56
11
TOTAL MAXIMUM DAILY LOAD PROGRAM.........................................................................81
12
RESEARCH PROGRAM........................................................................................................85
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DRAFT STORMWATER MANAGEMENT PLAN
LIST OF TABLES
Table 3-1: Outfalls Inventoried Through PY2022 (as of July 2022)..............................................................6
Table 3-2: Summary of USEPA-Approved TMDLs Identifying NCDOT as a Significant Contributor..............7
Table 3-3: Non-Stormwater Discharges.......................................................................................................7
Table 3-4: Summary of Target Pollutants and Sources
Table 4-1: Responsibility Matrix for NPDES Permit Compliance....
Table 4-2. HSP Funding Sources
Table 4-3: Shared Responsibilities .................
Table 4-4: Program Administration BMPs..............
Table 5-1: Summary of Target Pollutants & Audiences
Table 5-2: Public Education and Outreach BMPs
.8
11
12
12
13
20
21
Table 6-1: Public Involvement and Participation BMPs.............................................................................25
Table 7-1: Illicit Discharge Detection and Elimination BMPs - TS4 Mapping Program..............................28
Table 7-2: Illicit Discharge Detection and Elimination BMPs- IDDE...........................................................32
Table 8-1: Qualifying Alternative Program Components for Construction Site Runoff Control Program. 40
Table 8-2: Construction Site Runoff Control BMPs....................................................................................41
Table 9-1: Summary of Existing Post -Construction Program Elements.....................................................48
Table 9-2: Post Construction Control BMPs - BMP Retrofit Program........................................................49
Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and Maintenance
Program.........................................................................................................................................58
Table 10-2: Pollution Prevention and Good Housekeeping BMPs—Spill Response Program.....................62
Table 10-3: Pollution Prevention and Good Housekeeping BMPs - TS4 Operation and Maintenance
Program.........................................................................................................................................65
Table 10-4: Pollution Prevention and Good Housekeeping BMPs - SCM Inspection and Maintenance
Program.........................................................................................................................................69
Table 10-5: Pollution Prevention and Good Housekeeping BMPs—Vegetation, Pesticide and Fertilizer
ManagementProgram...................................................................................................................71
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DRAFT STORMWATER MANAGEMENT PLAN
Table 10-6: Pollution Prevention and Good Housekeeping BMPs - Vehicle and Equipment Maintenance
Program.........................................................................................................................................74
Table 10-7: Pollution Prevention and Good Housekeeping BMPs - Litter Management Program ............ 76
Table 10-8: Pollution Prevention and Good Housekeeping BMPs - Fecal Coliform Reduction Program.. 79
Table 11-1: Total Maximum Daily Load Program........................................................................................81
Table 12-1: Research Program....................................................................................................................85
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DRAFT STORMWATER MANAGEMENT PLAN
1. Introduction
The purpose of this Stormwater Management Plan (TS4SMP) is to establish and define the means by
which the North Carolina Department of Transportation (NCDOT) will comply with its National Pollutant
Discharge Elimination System (NPDES) Transportation Separate Storm Sewer System (TS4) Permit and
the applicable provisions of the Clean Water Act to meet the federal standard of reducing pollutants in
stormwater runoff to the maximum extent practicable.
This TS4SMP identifies the specific elements and minimum measures that NCDOT will develop,
implement, enforce, evaluate and report to the North Carolina Department of Environmental Quality
(NCDEQ) Division of Energy, Minerals and Land Resources (DEMLR) in order to comply with the TS4
Permit number NCS000250, as issued by NCDEQ. This permit covers activities associated with the
discharge of stormwater from the TS4 as owned and operated by and located within the rights of way
(ROWS) of the NCDOT transportation systems.
In preparing this TS4SMP, NCDOT has evaluated its TS4 and the permit requirements to develop a
comprehensive 5-year TS4SMP that will meet NCDOT's needs, address water quality issues and provide
the minimum measures necessary to comply with the permit. The TS4SMP details NCDOT's stormwater
management program, called the Highway Stormwater Program (HSP), including a discussion of funding,
a narrative description of the program, specific and measurable goals for each program component,
implementation schedule(s) and reporting metrics the TS4SMP will be evaluated and updated annually
to ensure that the elements and minimum measures it contains continue to adequately provide for
permit compliance and NCDOT's needs.
Once the TS4SMP is approved by NCDEQ, all provisions contained and referenced in this TS4SMP, along
with any approved modifications of the TS4SMP, are incorporated by reference into the permit and
become enforceable parts of the permit. Any major changes to the approved TS4SMP will require
resubmittal, review and approval by NCDEQ, and may require a new public comment period depending
on the nature of the changes.
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DRAFT STORMWATER MANAGEMENT PLAN
2. Certification
By my signature below I hereby 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.
I am also aware that the contents of this document shall become an enforceable part of the NPDES TS4
Permit, and that both NCDEQ and the United States Environmental Protection Agency have NPDES
Permit compliance and enforcement authority.
❑ I am a ranking elected official.
❑X I am a principal executive officer for the permitted TS4.
❑ I am a duly authorized representative for the permitted TS4 and have attached the
authorization made in writing by a principal executive officer or ranking elected official which
specifies me as (check one):
❑ A specific individual having overall responsibility for stormwater matters.
❑ A specific position having overall responsibility for stormwater matters.
Signature:
Print Name:
Title:
Signed this day of 20
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DRAFT STORMWATER MANAGEMENT PLAN
3 TS4 Information
3.1 Permitted TS4 Area
This TS4SMP applies to the discharge of borrow pit wastewater and stormwater from construction
activities and the NCDOT TS4 located statewide, including all regulated activities associated with the
discharge of stormwater from the TS4 as described in Part I of the permit.
3.2 Existing TS4 Outfall Mapping Program
The current TS4 Outfall Mapping Program includes explicit and implicit stormwater outfalls and Waters
of the United States. Selected watersheds where an explicit inventory has been performed may have
additional data collected. NCDOT maintains a map of implicit and explicit outfall inventories. Status of
the mapping program is provided in the table below.
Table 3-1: Outfalls Inventoried Through PY2022 (as of July 2022)
Outfall Type
Total Outfalls in Inventory
Implicit Roadway Outfalls
116,737
Explicit Roadway Outfalls
1,974
Explicit Non -Roadway Facility with TS4
Operations Outfalls and Non -Roadway
Industrial Facility Outfalls
669
3.3 Receiving Waters
The NCDOT TS4 encompasses the entire state of North Carolina and is located within all River Basins.
Applicable water quality standard related information can be found at the following NCDEQ sources:
o Waterbody Classification Map
o Impaired Waters and TMDL Map
o Most recent NCDEQ Final 303(d) List
The NCDOT TS4 is interconnected with other regulated MS4s and directly receives and discharges
stormwater from and to these systems.
3.4 Total Maximum Daily Loads
The Total Maximum Daily Loads (TMDLs) listed in Table 3-2 below have identified NCDOT as a significant
contributor and assigned NCDOT a unique Waste Load Allocation (WLA). The table also indicates
whether a Report of Findings has been approved by DEMLR.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 3-2: Summary of USEPA-Approved TMDLs Identifying NCDOT as a Significant Contributor
Water Body
Name
Water Body
ID
TMDL
Pollutant(s) of Concern
Approved Report
of Findings (Y/N)*
Hills Bay Embayment (White Oak River)
20-(18)c4
Fecal Coliform
Y
Boathouse Creek
20-31
Fecal Coliform
Y
Reports of Findings (ROFs) were required in the previous 2010 and 2015 permits. A ROF includes an
assessment of whether additional structural and/or non-structural BMPs are necessary to meet
NCDOT's WLA, or reduce the load to the maximum extent practicable, and a schedule of
implementation.
3.5 Endangered and Threatened Species and Critical Habitat
Significant populations of threatened or endangered species and/or critical habitat have been identified
within the regulated TS4 area. NCDOT performs site -specific assessments for threatened or endangered
species for each construction project. NCDOT regularly confers with the US Fish and Wildlife Service and
the NC Wildlife Resources Commission to identify species within the project corridor that require
protection.
3.6 Non-Stormwater Discharges
The water quality impacts of non-stormwater discharges have been evaluated by NCDOT at NCDOT non -
roadway facilities as summarized in Table 3-3 below. The unpermitted non-stormwater flows listed as
incidental do not significantly impact water quality. NCDOT believes residential and charity car washing
may have a possible significant water quality impact.
Wash water associated with car washing that does not contain detergents or does not discharge directly
into the TS4 is considered incidental. When performed by NCDOT, vehicle and equipment washing with
detergents is directed to a wastewater treatment system, local Publicly Owned Treatment Works
(POTW), collected for treatment or recycling, permitted by another NPDES permit, or other equivalent
measure; or if sanitary sewer is not available then performed on a grassed or graveled area to prevent
point source discharges of washwater into storm drains or surface waters. Detergents used by NCDOT
are biodegradable with pH adjusted to be in the range of 6 to 9 standard units.
Table 3-3: Non-Stormwater Discharges
Non-Stormwater Discharge
Water Quality
Impacts
Water line and fire hydrant flushing
Incidental
Landscape irrigation
Incidental
Diverted stream flows
Incidental
Rising groundwater
Incidental
Uncontaminated groundwater infiltration
Incidental
Uncontaminated pumped groundwater
Incidental
Uncontaminated potable water sources
Incidental
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DRAFT STORMWATER MANAGEMENT PLAN
Table 3-3: Non-Stormwater Discharges, continued
Non-Stormwater Discharge
Water Quality
Impacts
Foundation drains
Incidental
Air conditioner or air compressor condensate without added chemicals
Incidental
Irrigation waters
Incidental
Springs
Incidental
Water from crawl space pumps
Incidental
Footing drains
Incidental
Lawn watering
Incidental
Residential and charity car washing
Possible
Flows from riparian habitats and wetlands
Incidental
Dechlorinated swimming pool discharges
Incidental
Street wash water
Incidental
Routine external building wash down which does not use detergents
Incidental
Incidental windblown mist from cooling towers that collect on rooftops
Incidental
Flows from firefighting training without chemical additives or from firefighting activities
Incidental
3.7 Target Pollutants and Sources
In addition to those target pollutants identified above, NCDOT is not aware of other significant water
quality issues within the permitted TS4 area.
As required by Permit paragraph 3.2.1, Table 3-5 below summarizes the water quality pollutants
identified throughout Part 3 of this TS4SMP, the likely activities/sources/targeted audiences attributed
to each pollutant, and identifies the associated TS4SMP program(s) that address each.
Table 3-4: Summary of Target Pollutants and Sources
Target
Likely Source(s)/
TS4SMP Program Addressing
Pollutant(s)
Target Audience(s)
Target Pollutant(s)/Audience(s)
Sediment
Traveling Public, NCDOT
Construction Program, Public Education &
Employees
Outreach, Pollution Prevention & Good
Housekeeping Program
Detergent
Traveling Public, NCDOT
Pollution Prevention & Good Housekeeping
Employees
Program, Illicit Discharge Detection &
Elimination Program
Litter
Traveling public, School -aged
Public Education & Outreach, Pollution
Children, NCDOT Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program
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DRAFT STORMWATER MANAGEMENT PLAN
Table 3-4: Summary of Target Pollutants and Sources, continued
Target
Likely Source(s)/
TS4SMP Program Addressing
Pollutant(s)
Target Audience(s)
Target Pollutant(s)/Audience(s)
Illicit Discharges
Traveling Public, NCDOT
Public Education & Outreach, Pollution
Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program
Illegal Dumping
Traveling Public, NCDOT
Public Education & Outreach, Pollution
Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program
Fecal Coliform/Bacteria
Traveling Public, School -aged
Public Education & Outreach, Pollution
Children, NCDOT Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program; Post -Construction Stormwater
Program
Nutrients
Traveling Public, NCDOT
Public Education & Outreach, Pollution
Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program; Post -Construction Stormwater
Program
Oil and Grease
Traveling Public, NCDOT
Public Education & Outreach, Pollution
Employees
Prevention & Good Housekeeping Program
Metals
Traveling Public, NCDOT
Public Education & Outreach, Pollution
Employees
Prevention & Good Housekeeping Program,
Illicit Discharge Detection & Elimination
Program; Post -Construction Stormwater
Program
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DRAFT STORMWATER MANAGEMENT PLAN
4 Stormwater Management Program Administration
4.1 Organizational Structure
NCDOT's Highway Stormwater Program (HSP) is collaboratively managed by NCDOT's Hydraulics Unit
(HU) and Roadside Environmental Unit (REU) with support from others including NCDOT's consultant
partners, Division personnel, and Research & Development staff and researchers (see Figure 4-1).
NCDOT utilizes private professional services firms to assist with HSP program planning and
implementation. Additional NCDOT business units and sub -consultants are incorporated as needed to
address unique project tasks or workloads. The HSP consultants facilitate a significant portion of the
development of guidance documents and training material under the oversight of the HSP staff.
Figure 4-1. HSP Collaborative Management Organization
NCDEQ
NCDOT Research &
Development
J
Researchers
Hiehwav Stormwater Program
Hydraulics Roadside
Unit Environmental
Unit
NCDOT groups including:
• Highway Divisions
• Ferry Division
• Rail Division
• Global TransPark
• Turnpike Authority
• Other Units
Consultants
1-77 Mobility
Partners
The HSP also receives in -field implementation support from other NCDOT staff, making it a NCDOT-wide
initiative (See Table 4-1). With a few exceptions, the different program areas of the HSP shown in
Table 4-1 effectively mirror the NPDES Permit sections. Each program area is led by technical staff in the
business unit having the most responsibility and authority to implement the requirements, with support
and implementation from other business units. Table 4-1 indicates the primary, supporting, and
implementing business units by the respective P, S, and I letters in the matrix. A separate list of
responsible positions is maintained by NCDOT.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-1: Responsibility Matrix for NPDES Permit Compliance
Permit
Section
Description
2
w
CC
2
c
oc
o
LL
u
Z
>
2
0
¢
v
Z
a
_
2.1
Stormwater Management Program
P
P
I
I
I
I
I
I
3.1
General Requirements
P
P
I
I
I
I
I
1
1
3.2
Public Education and Outreach Program
P
P
I
I
I
I
1
1
3.3
Public Involvement and Participation Program
P
P
I
I
I
I
1
1
3.4.6 3.4.10
Illicit Discharge Detection and Elimination
(IDDE) Program
S
P
I
I
I
I
I
I
I
3.4.1-3.4.5
TS4 Mapping (within the IDDE Program)
P
S
I
I
3.5
Construction Site Runoff Control Program
S
P
I
I
I
I
I
1
1
3.6.1
BMP Retrofit Program
P
S
I
I
1
1
3.6.2
BMP Toolbox
P
S
I
I
I
I
I
I
3.6.3
Post Construction Stormwater Program
P
S
I
I
I
I
1
1
3.7.1
Facilities Operation and Maintenance Program
S
P
I
I
I
I
I
1
1
3.7.2
Spill Response Program
S
P
I
I
I
I
I
1
1
3.7.3
TS4 Operation and Maintenance Program
S
P
I
I
I
I
I
I
3.7.4
SCM Inspection and Maintenance Program
S
P
I
I
I
I
1
1
3.7.5
Vegetation, Pesticide and Fertilizer
Management
P
I
I
I
I
I
I
I
3.7.6
Vehicle and Equipment Maintenance Program
P
I
I
I
I
I
1
1
3.7.7
Litter Management Program
S
P
I
I
I
I
I
1
1
3.7.8
Fecal Coliform Reduction Program
S
P
I
I
I
I
I
1
1
3.8
Total Maximum Daily Load Program
P
S
I
I
I
I
1
1
3.9
Research and Program Assessment
P
P
I
I
I
I
I
I
4
Annual Program Review
P
P
I
I
I
I
I
I
P - Primary Lead Hydro - Hydraulics Unit RD - Rail Division DMV - Division of Motor Vehicles
S — Supporting REU - Roadside Environmental Unit FD - Ferry Division NCTA - INC Turnpike Authority
I — Implementer HWY DIV - 14 Highway Divisions NCGTP — NC Global TransPark 1-77 MP —1-77 Mobility Partners
4.2 Program Funding and Budget
In accordance with the issued permit, NCDOT shall maintain adequate funding and staffing to implement
and manage the provisions of the TS4SMP and comply with the requirements of the NPDES MS4 Permit.
The budget includes the permit administering and compliance fee, which is billed by the DEMLR
annually.
Funding for the HSP comes from a wide range of sources. Management and development of the HSP are
predominately funded from two sources:
1) Work Breakdown Structure (WBS) 48797.1.1, 48797.1.2, and 48797.1.3 under
Transportation Improvement Program (TIP) R-5968, and
2) WBS 51236.
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Other business units that support compliance with stormwater regulations contribute funding to the
HSP. Additionally, other sources of funds are periodically available. Table 4-2 summarizes sources of
funding for the HSP.
Table 4-2. HSP Funding Sources
TIP R-5968, "NPDES Permit, Retrofit Sites to Protect Water Quality"
• Source: State Transportation Program; 80% Federal, 20% State funds
• Budget: $3,000,000 annually from 2020-2029 per current State Transportation Improvement Program (STIP)
• Uses: Staff salaries (predominately for Hydraulics Unit staff; other business units [such as the Divisions,
Geotechnical Engineering Unit, Location and Surveys] use when working on BMP retrofits or other HSP
tasks), material expenses for retrofit construction, administrative overhead charges, and program -wide
consultant support.
• Managed by: Hydraulics Unit
WBS 51236, "NPDES Stormwater BMP Structure"
• Source: Legislative line item
• Budget: approximately $1,300,000 annually
• Uses: Staff salaries (predominately for REU staff, material expenses for publications for public education,
administrative overhead charges, and miscellaneous compliance -related needs), significant or one-time
maintenance tasks for stormwater BMPs, development of Stormwater Pollution Prevention Plans (SPPPs)
BMPs and maintenance for water quality protection at maintenance facilities (such as installation or upgrade
of salt storage equipment).
• Managed by: Roadside Environmental Unit
4.3 Shared Responsibility
NCDOT will share the responsibility to implement the following permit requirements, which are at least
as stringent as the corresponding NPDES TS4 Permit requirement. NCDOT remains responsible for
compliance if the other entity fails to perform the permit obligation and may be subject to enforcement
action if neither NCDOT nor the other entity fully performs the permit obligation. Table 4-3 below
summarizes who will be implementing the component, what the component program is called, the
specific TS4SMP best management practice (BMP) or permit requirement that is being met by the
shared responsibility, and whether a legal agreement to share responsibility is in place.
Table 4-3: Shared Responsibilities
TS4SMP BMP or
Implementing Entity & Program Name
Legal Agreement
Permit Requirement
(Y/N)
Permit Sections 2.1, 3.1, 3.4.6-3.4.10, 3.5,
1-77 Mobility Partners
Y
3.6.2, 3.6.3, 3.7.1, 3.7.2, 3.7.3, 3.7.4, 3.7.5,
3.7.6, 3.7.7, 3.7.8, 3.8, 3.9, 4
4.4 Co-Permittees
There are no other entities applying for co-permittee status under the NPDES TS4 permit number
NCS000250 for NCDOT.
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4.5 Measurable Goals for Program Administration
NCDOT will manage and report the following BMPs shown in Table 4-4 for the administration of the
Stormwater Management Program.
Table 4-4: Program Administration BMPs
Permit
1.4: Annual Administering and Compliance Monitoring Fee
Ref.
The Permittee shall pay the administering and compliance monitoring fee within 30 (thirty) days after
being billed by the DEMLR. Failure to pay the fee in a timely manner in accordance with 15A NCAC 2H
.0105(b)(4) may cause the Division to initiate action to revoke this permit and/or deny permit renewal.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
1
Annual Administering and Compliance Monitoring Fee
1.4 Pay the annual
1. Pay within 30
1. Annually, Permit
1. Yes/No
administering and
(thirty) days of
Years 1- 5
compliance monitoring fee.
being billed.
Permit
1.5: Duty to Reapply
Ref.
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic
authorization to discharge beyond the expiration date, the Permittee shall submit a permit renewal
application and fees, as are required, no later than 180 days prior to the expiration date of this permit.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
2
Permit Renewal Application
Certify and submit a permit
1. Certify the
1 Permit Year 5
1. Date of permit
renewal application package.
stormwater permit
renewal
renewal
application
application and
submittal
submit to NCDEQ
at least 180 days
prior to permit
expiration.
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Table 4-4: Program Administration BMPs
Permit
3.1.4, 2.4.1, 2.4.2, and 2.1.6 Seek approval of the TS4SMP and maintain a copy online.
Ref.
The following permit sections apply to seeking and maintaining approval of the TS4SMP:
3.1.4 The TS4SMP shall be submitted to DEMLR within ninety (90) days of permit issuance for DEMLR
review and approval. The TS4SMP is deemed approved if no response is received from the DENLR
within 90 days of receipt by the DEMLR.
2.1.4 The Permittee shall notify DEMLR in writing of any planned major modifications to the TS4SMP.
DEMLR will inform the Permittee within 30 days if approval of the modified TS4SMP is required.
2.4.1 When specific changes to the program or TS4SMP are required by DEMLR in writing, the
Permittee shall provide certification in writing to DEMLR that the changes have been made.
2.4.2 DEMLR may notify the Permittee when the TS4SMP does not meet one or more of the
requirements of the permit. Within ninety (90) days of such notice, the Permittee shall submit a plan
and time schedule to DEMLR for modifying the TS4SMP to meet the requirements. DEMLR may
approve the plan, approve a plan with modifications, or reject the proposed plan. Nothing in this
paragraph shall be construed to limit DEMLR's ability to conduct enforcement actions for violations of
this permit.
2.1.6 The Permittee shall maintain an up-to-date version of this permit and the TS4SMP online in a
manner that is accessible by DEMLR and the public.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
3
Seek approval of the TS4SMP and maintain a copy online.
3.1.4 Submit the TS4SMP to
1. Submit the TS4SMP
1. Within ninety
1. Yes/No
DEMLR within ninety (90)
to DEMLR within
(90) days of
days of permit issuance for
ninety (90) days of
permit issuance
DEMLR review and approval.
permit issuance.
The TS4SMP is deemed
approved if no response is
received from the DENLR
within 90 days of receipt by
the DEMLR.
2.1.4 Notify DEMLR in writing
2. If major
2. If needed
2. Needed and
of any planned major
modifications are
submitted/
modifications to the TS4SMP.
needed, notify
Needed but not
DEMLR will inform the
DEMLR in writing.
submitted / Not
Permittee within 30 days if
needed
approval of the modified
TS4SMP is required.
Page 14
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-4: Program Administration BMPs
Permit
3.1.4, 2.4.1, 2.4.2, and 2.1.6 Seek approval of the TS4SMP and maintain a copy online, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
3
Seek approval of the TS4SMP and maintain a copy online, continued
cont.
2.4.1 When specific changes
3. Certify that
3. If needed
3. Needed and
to the program or TS4SMP
changes required in
submitted/
are required by DEMLR in
writing by DEMLR
Needed but not
writing, the Permittee shall
have been made.
submitted / Not
provide certification in
needed
writing to DEMLR that the
changes have been made.
2.4.2 When specific changes
4. Submit a plan to
4. If needed
4. Needed and
to the program or TS4SMP
modify the TS4SMP
submitted/
are required by DEMLR, the
within 90 days if
Needed but not
Permittee shall submit a plan
changes are
submitted / Not
and time schedule to DEMLR
required by
needed
for modifying the TS4SMP to
DEMLR.
meet the requirements
within 90 days.
2.1.6 Maintain an up-to-date
5. Maintain an up -to-
5. Continuously
5. Yes/No
version of the permit and the
date version of the
Permit Years 1—
TS4SMP online in a manner
permit and TS4SMP
5
that is accessible by DEMLR
on NCDOT's public
and the public.
facing website.
Page 15
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-4: Program Administration BMPs
Permit
Part 3. Develop a TS4 Stormwater Management Plan
Ref.
This permit requires the full and proper implementation of a comprehensive stormwater management
program to address and manage pollutants associated with stormwater runoff from the TS4 and
covered facilities. To the extent allowable under State and local law, the Permittee must develop and
implement a TS4SMP in accordance with Section 402(p)(3)(B)(iii) of the Clean Water Act. The purpose
of the TS4SMP is to establish and define the means by which the Permittee will comply with this
permit and with the applicable provisions of the Clean Water Act.
3.1.1 The TS4SMP shall include, at a minimum, specific and measurable goals that define program
elements to fully implement each of the six MCMs outlined herein: public education and outreach,
public involvement and participation, illicit discharge detection and elimination, construction site
runoff control, post -construction controls, and pollution prevention and good housekeeping for TS4
operations, as well as any required Total Maximum Daily Load (TMDL) and/or Research Program
requirements.
3.1.3 The TS4SMP shall detail the Permittee's Stormwater Management Program for the five-year
term of the stormwater permit, including funding, a narrative description of the program, specific and
measurable goals for each program component, implementation schedule(s) and reporting metrics.
2.3.1 The Permittee shall clearly identify in the TS4SMP any qualifying alternative program
components that will be utilized to meet specific permit requirements.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
4
Develop a TS4 Stormwater Management Plan
3.1.1 Include specific and
1. Include specific and
1. Upon TS4SMP
1. Yes/No
measurable goals that define
measurable goals
development,
program elements to fully
in the TS4SMP for
Permit Year 1
implement each of the six
each program.
MCMs, TMDLs and/or
Research Program
requirements.
3.1.3 Detail the stormwater
2. Include program
2. Upon TS4SMP
2. Yes/No
programs for five years,
details for the next
development,
including funding, a narrative
five years.
Permit Year 1
description of the program,
specific and measurable
goals for each program
component, implementation
schedule(s) and reporting
metrics.
2.3.1 Clearly identify in the
3. If needed, include
3. Upon TS4SMP
3. Needed and
TS4SMP any qualifying
qualifying
development,
submitted/
alternative program
alternative
Permit Year 1
Needed not
components that will be
program
submitted / Not
utilized to meet specific
components in the
needed
permit requirements.
TS4SMP.
Page 16
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-4: Program Administration BMPs
Permit
3.1.2 and 2.2.2 Other Administrative Requirements
Ref.
3.1.2 The Permittee shall maintain a list of positions responsible for implementing the provisions of
this permit and the TS4SMP, including central office staff and division staff. The list shall include
specific positions and a brief description of stormwater responsibilities and/or duties for each listed
position.
2.2.2 The Permittee shall maintain, and make available to the Division upon request, written
procedures for implementing the MCMs, permit requirements, and TS4SMP. Written procedures shall
identify specific action steps, schedules, resources, and responsibilities for implementing the MCMs.
Written procedures can be free standing or, where appropriate, integrated into the TS4SMP.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
5
Other Administrative Requirements
3.1.2 Maintain a list of
1. Maintain a list of
1. Continuously,
1. Yes/No
positions responsible for
roles and
Permit Years 2-5.
implementing the permit
responsibilities for
and TS4SMP. The list shall
staff responsible
include specific positions and
for implementing
a brief description of
the TS4SMP and
stormwater responsibilities
permit.
and/or duties for each listed
position.
6
Maintain written procedures
2.2.2 The Permittee shall
1. Maintain written
1. Per schedules
1. Yes/No
maintain, and make available
procedures for
established in
to the Division upon request,
implementing the
the TS4SMP.
written procedures for
MCMs, permit
implementing the MCMs,
requirements, and
permit requirements, and
TS4SMP. Make
TS4SMP. Written procedures
available upon
shall identify specific action
request.
steps, schedules, resources,
and responsibilities for
implementing the MCMs.
Written procedures can be
free-standing or, where
appropriate, integrated into
the TS4SMP.
Page 17
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-4: Program Administration BMPs
Permit
2.1.1, 2.1.2, 4.1, and 4.2: Annual TS4SMP Review and Annual Report.
Ref.
2.1.1 The Permittee shall maintain adequate funding and staffing to implement and manage the
provisions of the TS4SMP and meet the requirements of this permit.
2.1.2 The Permittee shall evaluate the performance and effectiveness of the program components at
least annually. Results shall be used by the Permittee to modify the program components as necessary
to accomplish the intent of the permit.
4.1 The Permittee shall review and update the TS4SMP as necessary, but at least on an annual basis,
to identify compliance issues, necessary modifications, and improvements needed to maximize
TS4SMP effectiveness.
4.2 The Permittee shall submit an annual report to DEMLR by August 31 of each year. When required,
a permit renewal application may be submitted in lieu of the annual report.
The DEMLR may request additional reporting and/or monitoring information as necessary to evaluate
the progress and results of the Permittee's stormwater programs.
The annual report shall document activities over the course of the fiscal year (July 1—June 30) and
include appropriate information to accurately describe the progress, status, and results of the
permitted programs. At a minimum, the annual report shall:
a) Assess compliance with the permit.
b) Provide information on the establishment of appropriate legal authorities, inspections, and
enforcement actions.
c) Include specific annual reporting metrics identified in the TS4SMP
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
7
Annual TS4SMP Review and Annual Report
4.1 Perform an annual
1. Review the
1. Annually Permit
1. Yes/No
review and update of the
TS4SMP to identify
Years 1— 5
TS4SMP.
compliance issues,
necessary
modifications, and
improvements
needed to
maximize TS4SMP
effectiveness
2. Update the
2. Annually Permit
2. Needed and
TS4SMP as needed
Years 1— 5
updated/
to address
Needed, not
deficiencies
updated / Not
needed
2.1.1 Maintain adequate
3. Assess if the
3. Annually Permit
3. Yes/No
funding and staffing to
program is
Years 1— 5
implement and manage the
adequately funded
provisions of the TS4SMP
and staffed.
and meet the requirements
of this permit.
Page 18
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DRAFT STORMWATER MANAGEMENT PLAN
Table 4-4: Program Administration BMPs
Permit
2.1.1, 2.1.2, 4.1, and 4.2: Annual TS4SMP Review and Annual Report, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
7
Annual TS4SMP Review and Annual Report, continued
cont.
4.2 The Permittee shall
4. Request additional
4. If needed
4. Needed and
submit an annual report to
funding if needed
requested/
DEMLR by August 31 of each
Needed, not
year. When required, a
requested / Not
permit renewal application
needed
5. Prepare, certify,
5. Annually Permit
5. Yes/No
may be submitted in lieu of
the annual report.
and submit the
Years 1-4
annual report to
DEMLR prior to
August 31 each
year. In year 5, a
permit renewal
application may be
submitted in lieu of
the annual report
Page 19
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DRAFT STORMWATER MANAGEMENT PLAN
5 PUBLIC EDUCATION AND OUTREACH PROGRAM
NCDOT will implement a Public Education and Outreach Program to distribute educational materials to
the traveling public and school -aged children about the impacts of stormwater discharges on water
bodies and steps the traveling public can take to reduce pollutants in stormwater runoff.
The target audiences and identified pollutants listed in Part 3.9 of this TS4SMP, which will be addressed
by the Public Education and Outreach Program, are summarized in Table 5-1 below. NCDOT will
incorporate NCDOT employees and contractors into its Public Education and Outreach Program, as
appropriate. In addition, NCDOT is required to inform the traveling public of certain pollutants as well as
the hazards associated with illicit discharges and illegal dumping.
Table 5-1: Summary of Target Pollutants & Audiences
Target Pollutants/Sources
Target Audience(s)
Sediment
Traveling Public, NCDOT Employees
Detergent
Traveling Public, NCDOT Employees
Litter
Traveling public, School -aged Children, NCDOT Employees
Illicit Discharges
Traveling Public, NCDOT Employees
Illegal Dumping
Traveling Public, NCDOT Employees
Fecal Coliform/Bacteria
Traveling Public, NCDOT Employees
Nutrients
Traveling Public, NCDOT Employees
Oil and Grease
Traveling Public, NCDOT Employees
Metals
Traveling Public, NCDOT Employees
NCDOT maintains a Public Education and Outreach Program to educate the public about the importance
of stormwater quality, including awareness of the impacts of litter, sedimentation, chemical application,
illicit discharges and illegal dumping, and other activities that may add pollutants to stormwater runoff.
NCDOT encourages public involvement in stormwater quality programs and maintains diverse
educational materials to engage and educate the public from different social, economic, and age groups.
NCDOT maintains a public website that contains information intended to educate public users as well as
stormwater educational materials. NCDOT uses social media posts to help educate the public on anti -
litter and stormwater pollution prevention messages. NCDOT actively seeks partnerships with other
state agencies and organizations with shared outreach goals. This includes public and private
partnerships associated with Litter Management, such as NCDOT's continued management of the
Sponsor -A -Highway program that collects and disposes of litter from NC roadways. NCDOT also
maintains a Connect NCDOT website for our business partners that provides more detailed content and
key guidance documents such as NCDOT's BMP Toolbox and the Erosion and Sediment Control Design
and Construction Manual.
NCDOT continues to engage with various education partners/ organizations to promote stormwater
pollution prevention awareness education for school -aged children. Examples include NCDOT's
continued involvement in the Wake County Summer Science, Technology, Engineering, and Math
(STEM) Sessions for teachers where NCDOT provides information to teachers on how NCDOT manages
Page 20
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DRAFT STORMWATER MANAGEMENT PLAN
stormwater runoff from its existing roadway and non -roadway facilities and ongoing construction
projects, how NCDOT employs various stormwater pollution prevention practices, and what young
citizens can do to protect NC waters. NCDOT also supplies stormwater educational materials directly to
educators through various venues including teacher kits containing litter prevention and stormwater
pollution prevention materials.
NCDOT will manage, implement, and report the following public education and outreach BMPs (See
Table 5-2).
Table 5-2: Public Education and Outreach BMPs
Permit
3.2.1 and 3.2.2: Outreach to Targeted Audiences.
Ref.
Identify the specific elements and implementation of a Public Education and Outreach Program to
provide educational materials to the traveling public, or conduct equivalent outreach activities,
about the impacts of stormwater discharges on water bodies and how the traveling public can
reduce TS4 pollutants in stormwater runoff. The Permittee shall document the extent of exposure of
each media, event or activity, including those elements implemented locally or through a
cooperative agreement and, at a minimum, shall:
3.2.1 Evaluate the target pollutants, likely sources, and associated target audiences likely to have
significant stormwater impacts to the TS4 and receiving waters. The traveling public and school -aged
children shall be included as target audiences. Litter and pollutants resulting from vehicle operation
and maintenance issues shall be included as target pollutants.
3.2.2 Provide stormwater educational information to identified audiences to reduce the potential for
discharge of target pollutants through the TS4.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
g
Evaluate and Identify Target Pollutants, Likely Sources, and Associated Target Audiences
3.2.1 Evaluate the target
1. Evaluate identified
1. Annually, Permit
1. Yes/No
pollutants, likely sources,
targets to assess
Years 1-5
and associated target
continued
audiences likely to have
applicability.
2. Update identified
2. Annually, Permit
2. Updated/ Not
significant stormwater
impacts to the TS4 and
targets if needed.
Years 1-5
Needed
receiving waters.
9
Provide Educational Materials on Litter to School -Aged Children
3.2.1 and 3.2.2 Provide
1. Make anti -litter
1. Continuously,
1. Number
educational materials that
packages available
Permit Years 1-5
provided /
target school -aged children.
to teachers upon
None were
request.
requested
2. Make anti -litter
2. Continuously,
2. Number of
materials targeting
Permit Years 1-5
unique
school -aged children
materials
available on
NCDOT's website.
Page 21
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STORMWATER MANAGEMENT PLAN
Table 5-2: Public Education and Outreach BMPs
Permit
3.2.1 and 3.2.2: Outreach to Targeted Audiences, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
10
Provide Educational Materials on Litter to Traveling Public
3.2.1 and 3.2.2 Provide
1. Make hardcopies of
1. Annually, Permit
1. Number of
educational materials
anti -litter brochures
Years 1-5
hardcopy
regarding litter to users of
available to the public.
brochures
NCDOT transportation
printed /
systems.
Additional
copies not
needed
2. Make anti -litter
2. Continuously,
2. Number of
messaging materials
Permit Years 1-5
unique
for the public
materials
available on NCDOT's
website.
11
Provide general stormwater quality educational materials to Traveling Public
3.2.1 and 3.2.2 Provide
1. Make stormwater
1. Continuously,
1. Number of
general stormwater quality
quality educational
Permit Years 1-5
unique
educational materials to
materials available
materials
users of NCDOT
that discuss the
transportation systems.
pollutants of concern
listed in Table 3.5.
2. Develop additional or
2. Permit Year 3
2. Yes/No
update existing
educational materials
to address metals,
organics, and
temperature.
Page 22
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DRAFT STORMWATER MANAGEMENT PLAN
Table 5-2: Public Education and Outreach BMPs
Permit
3.2.3, 3.2.4 and 3.4.10 Web Site and Public Reporting:
Ref.
3.2.3 Provide and maintain a website designed to convey the TS4 stormwater program's purpose and
educational message(s). The website shall include information on stormwater, water quality, TS4
pollutants, NCDOT stormwater projects and activities, and how to report stormwater issues.
3.2.4 Maintain and promote reporting mechanisms for the travelling public to identify and report
littering, illicit discharges, illegal dumping.
3.4.10 Provide a mechanism for the traveling public, NCDOT staff and contractors to report illicit
discharges and illegal dumping. The mechanism shall be publicized to facilitate reporting and shall be
managed t provide raped response by appropriately trained personnel. (NCDOT manages the
reporting mechanism for internal and external audiences separately. The struck text is addressed in
BMP # 27).
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
12
Maintain Public Education and Outreach materials online
3.2.3 Maintain educational
1. Maintain educational
1. Continuously,
1. Yes/No
materials online.
materials regarding
Permit Years 1-5
stormwater, water
quality, TS4
pollutants, and
NCDOT stormwater
projects and activities
online.
13
Maintain and promote reporting mechanisms for the travelling public to identify and report
littering, illicit discharges, illegal dumping.
3.2.4 and 3.4.10 Maintain
1. Maintain reporting
1. Continuously,
1. Yes/No
and promote reporting
mechanisms though
Permit Years 1-5
mechanisms for the public
NCDOT's Contact Us
to identify and report
Citizen Action
littering, illicit discharge,
Request (CARS)
and illegal dumping.
website.
2. Maintain reporting
2. Continuously,
2. Yes/No
mechanisms via
Permit Years 1-5
telephone by
maintaining contact
information on
NCDOT's website.
3. Maintain reporting
3. Continuously,
3. Yes/No
mechanisms via
Permit Years 1-5
telephone through
printed materials.
4. Promote multiple
4. Continuously,
4. Yes/No
reporting
Permit Years 1-5
mechanisms.
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DRAFT STORMWATER MANAGEMENT PLAN
6 Public Involvement and Participation Program
This TS4SMP identifies the minimum elements and implementation of a Public Involvement and
Participation Program that complies with applicable State, Tribal, and local public notice requirements.
NCDOT maintains a Public Involvement and Participation Program that provides the public with
opportunities to offer input on stormwater, litter, or water quality related issues related to NCDOT's
transportation systems. NCDOT follows the State, Tribal, and local public notice procedures that allow
the public to comment on stormwater or water quality concerns during project -specific public meetings.
NCDOT maintains an online reporting system titled Citizen Action Requests (CARS) for the public to
report drainage issues, culvert blockages, roadway debris, or other related issues. NCDOT documents
and tracks reported items, responds in appropriate timely fashion, and publishes the CARS report results
online. NCDOT also has a separate Swat -A -Litterbug online reporting system and encourages the public
to report littering.
NCDOT also continues to operate its summer internship program that provides opportunities for young
students/ professionals to actively participate in NCDOT's Highway Stormwater Program.
NCDOT continues to maintain an extensive Litter Management program, which includes the
management of NCDOT's Adopt -A -Highway (AAH) which was established in 1988. Since then, tens
of thousands of volunteers have reduced litter and saved taxpayers millions of dollars annually in
roadside cleanup costs. NCDOT's AAH program has over 120,000 participants across the state with both
civic and community groups, including schools, religious, social groups, professional organizations, as
well as individuals and families. NCDOT continues to encourage public involvement in its AAH program
via litter collection and disposal. NCDOT also administers a biannual Litter Sweep providing additional
opportunities for other volunteers to participate in litter collection and removal from NCDOT roadways
each spring and summer.
NCDOT will manage, implement, and report the following public involvement and participation BMPs
(See Table 6-1).
Page 24
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DRAFT STORMWATER MANAGEMENT PLAN
Table 6-1: Public Involvement and Participation BMPs
Permit
3.3: Public Involvement and Participation Program.
Ref.
The TS4SMP shall identify the specific elements for implementing, documenting and tracking a Public
Involvement and Participation Program that complies with State and local public notice
requirements and, at a minimum, shall:
3.3.1 Provide mechanisms for public input on stormwater issues and the stormwater program.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
14
Mechanisms for public input on stormwater issues and stormwater program
3.3.1 Provide mechanisms
1. Provide
1. Continuously,
1. Number of
for public input on
opportunities to
Permit Years 1-5
public meetings
stormwater issues and the
comment on
held
stormwater program.
stormwater during
project -specific
public meetings.
2. Maintain NCDOT's
2. Continuously,
2. Yes/No
Contact Us Citizen
Permit Years 1-5
Action Request
(CARS) website.
3. Maintain contact
3. Continuously,
3. Yes/No
information on
Permit Years 1-5
NCDOT's website.
4. Publish the monthly
4. Continuously,
4. Yes/No
CARS report on
Permit Years 1-5
NCDOT's website.
Permit
3.3.2: Volunteer Opportunities. Provide volunteer opportunities to ongoing citizen participation,
Ref.
such as the Adopt -A -Highway and Litter Sweep Programs.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
15
Maintain an internship program to participate in NCDOT's Highway Stormwater Program
Maintain an internship
1. Maintain an
1. Annually, Permit
1. Number of
program to participate in
internship program
Years 1-5
interns/Reason
NCDOT's Highway
as feasible to
not Feasible
Stormwater Program.
participate in
NCDOT's Highway
Stormwater
Program.
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STORMWATER MANAGEMENT PLAN
Table 6-1: Public Involvement and Participation BMPs
Permit
3.3.2: Volunteer Opportunities. Provide volunteer opportunities to ongoing citizen participation, such
Ref.
as the Adopt -A -Highway and Litter Sweep Programs.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
16
Continue the Adopt -A -Highway Program
3.3.2 Manage the ongoing
1. Encourage public
1. Continuously,
1. Number of
Adopt -A -Highway Program.
participation in the
Permit Years 1-5
groups
Adopt -A -Highway
participating in
(AAH) Program.
the program
2. Dispose of litter
2. Continuously,
2. Quantity of litter
collected through
Permit Years 1-5
collected
the AAH Program.
3. Continue to
3. Continuously,
3. Number of
recognize long
Permit Years 1-5
recognitions
term AAH
made
volunteer groups.
n list of
4. Continuously,
4. Yes/No
[47Maint8i
Litter Management
Permit Years 1-5
Coordinators.
17
Continue the Statewide Litter Sweep Program
3.3.2 Continue the Statewide
1. Continue public
1. Continuously,
1. Report the
Litter Sweep Program.
participation in
Permit Years
number of
litter pickup,
1-5
volunteers
including the
biannual Litter
Sweep Program.
2. Track the quantity
2. Continuously,
2. Document the
of litter collected
Permit Years
quantity of litter
by volunteers.
1-5
collected
18
Continue the Statewide Swat -A -Litterbug Program
Continue the Statewide Swat -A-
1. Encourage the
1. Continuously,
1. Number of Swat -
Litterbug Program.
public to report
Permit Years
A -Litterbug
littering through
1-5
reports submitted
the Swat -A -
Litterbug Program.
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DRAFT STORMWATER MANAGEMENT PLAN
7 Illicit Discharge Detection and Elimination Program
Although this section of the permit and TS4SMP includes several changes from the previous permit,
NCDOT has already implemented several of the requirements. For example, NCDOT maintains a
statewide map of primary routes, secondary roads, and bridges owned and operated by NCDOT. The
map also includes surface waters and roadway crossings of surface waters, and is updated annually.
Under its existing Stormwater System Inventory and Prioritization (SSIP) Program, NCDOT also maintains
a Field Inventory Procedure (FIP) which includes procedures to inventory outfalls, inlets, conveyances
and other assets in the stormwater drainage system. The FIP will need to be updated for the current
permit requirements. However, it has been used in the past to implement field data collection in high
priority watersheds. As of Permit Year 2021, NCDOT has field verified over 1,800 outfalls.
NCDOT will continue to look for illicit discharges, illegal dumping, or other potential stormwater
pollutant concerns in conjunction with any inspections of major outfalls identified for field verified as
part of its FIP.
NCDOT's Illicit Discharge Detection and Elimination Program (IDDEP) was developed and implemented
to detect and eliminate illicit discharges and illegal dumping into the NCDOT TS4. The program provides
training on performing inspections, identifying illicit discharges and illegal dumping, and reporting them
to NCDEQ. NCDOT maintains a tracking database and a standard point of contact for the program.
NCDOT employees participate in training to help enable identification of potential illegal dumping and
illicit discharges when performing other work on the NCDOT system, as well as instruction on reporting
them to the IDDEP manager, who acts as the primary point of contact for the program.
NCDOT will continue to maintain an Illicit Discharge Detection and Elimination Program which shall, at a
minimum, include the following illicit discharge detection and elimination BMPs (See Tables 7-1 and
7-2).
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DRAFT STORMWATER MANAGEMENT PLAN
7.1 TS4 Mapping Program
Table 7-1: Illicit Discharge Detection and Elimination BMPs - TS4 Mapping Program
Permit
3.4.1 and 3.4.2: TS4 Mapping Program — GIS-based map of implicit outfalls and statewide base -
Ref.
map. The TS4SMP shall identify the specific elements to develop and implement an Illicit Discharge
Detection and Elimination (IDDE) Program to reduce the discharge of pollutants to surface waters. At
a minimum, the Permittee shall:
3.4.1 Maintain a GIS-based implicit stormwater outfall inventory which includes implicit outfalls from
primary and secondary roadways.
3.4.2 Develop and maintain a statewide base map of Permittee owned and operated primary routes,
secondary roads, surface waters, and bridge and roadway crossings of surface waters.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
19
Maintain a GIS-based implicit stormwater outfall inventory
3.4.1 Maintain a GIS-based
1. Maintain a process
1. Continuously,
1. Yes/No
implicit stormwater outfall
for deriving a GIS-
Permit Years 1-5
inventory which includes
based implicit
implicit outfalls from primary
stormwater outfall
and secondary roadways.
inventory.
2. Implement the
2. Annually, Permit
2. Yes/No
protocol to update
Years 1-5
the GIS-based
implicit stormwater
outfall inventory.
20
Maintain a Statewide Base Map of the TS4
3.4.2 Develop and maintain a
1. Develop a process
1. Permit Year 1
1. Yes/No
statewide base map of
for deriving a GIS-
Permittee owned and
based statewide
operated primary routes,
base map of
secondary roads, surface
Permittee owned
waters, and bridge and
and operated
roadway crossings of surface
primary routes,
waters.
secondary roads,
surface waters, and
bridge and roadway
crossings of surface
waters.
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STORMWATER MANAGEMENT PLAN
Table 7-1: Illicit Discharge Detection and Elimination 13MPs - TS4 Mapping Program
Permit
3.4.1 and 3.4.2: TS4 Mapping Program — GIS-based map of implicit outfalls and statewide base -
Ref.
map, continued.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
20
Maintain a Statewide Base Map of the TS4, continued
cont.
2. Maintain a process
2. Continuously,
2. Yes/No
for deriving a GIS-
Permit Years 2-5
based statewide
base map of
Permittee owned
and operated
primary routes,
secondary roads,
surface waters, and
bridge and roadway
crossings of surface
waters.
3. Implement the
3. Annually, Permit
3. Yes/No
process to update
Years 2-5
the GIS-based base -
map.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-1: Illicit Discharge Detection and Elimination BMPs- TS4 Mapping Program
Permit
3.4.3 and 3.4.5: TS4 Mapping Program — Develop, Implement, and Maintain a mapping program for
Ref.
TS4 conveyances and outfalls primary routes in Phase I MS4 permitted areas
3.4.3 Develop and implement a program for mapping TS4 conveyances and outfalls associated with
primary routes which are located within Phase I MS4 permitted areas. The program, at a minimum,
shall include mapping of major outfalls, bridge outfalls discharging directly to surface waters, and
associated inlets, catch basins, conveyances, and flow directions.
3.4.5 Establish a statewide TS4 mapping inventory to, at a minimum, include major outfalls and
bridge outfalls discharging directly to surface waters, and associated inlets, catch basins,
conveyances, and flow directions associated with primary routes which are located within Phase I
MS4 permitted areas
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
21
Develop and implement a program for mapping TS4 conveyances and outfalls on primary routes in
Phase I MS4 permitted areas
3.4.3 Develop and
1. Collaborate with
1. Permit Years 1-2
1. Yes/No
implement a program for
Phase I MS4s to
mapping TS4
aggregate existing
conveyances and outfalls
mapped/inspected
associated with primary
data.
routes which are located
2. Develop a new
2. Permit Year 2
2. Yes/No
within Phase I MS4
geodatabase
permitted areas. The
structure to include
program, at a minimum,
major outfalls,
shall include mapping of
bridge outfalls
major outfalls, bridge
discharging directly
outfalls discharging
to surface waters,
directly to surface waters,
and associated
and associated inlets,
inlets, catch basins,
catch basins,
conveyances, and
conveyances, and flow
flow directions.
directions.
3. Integrate Phase 1
3. Permit Year 3
3. Yes/No
MS4 aggregated
data and NCDOT
existing data into
the geodatabase.
4. Identify gaps in the
4. Permit Year 3
4. Yes/No
assets, attributes,
and footprint of
available data and
prioritize areas of
TS4 field mapping in
Phase I MS4 areas.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-1: Illicit Discharge Detection and Elimination BMPs - TS4 Mapping Program
Permit
3.4.3 and 3.4.5: TS4 Mapping Program, continued
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
21
Develop and implement a program for mapping TS4 conveyances and outfalls on primary routes in
cont.
Phase I MS4 permitted areas, continued
1. Update existing field
1. Permit Year 4
3. Yes/No
inventory protocols
and data collection
application.
2. Develop or update
2. Permit Year 4
3. Yes/No
training materials
regarding TS4
Mapping Program for
NCDOT staff and
contractors.
22
Implement field data collection for TS4 Mapping Program
Collect field data for
1. Perform training for
1. Permit Year 5
1. Yes/No
priority areas.
NCDOT Staff and
Contractors
performing field data
collection.
2. Initiate field data
2. Permit Year 5
2.Yes/No
collection in current
Phase I MS4
permitted areas.
23
Establish a statewide TS4 mapping inventory
3.4.5 Establish a statewide
1. Maintain the data
1. Permit Year 5
1. Yes/No
TS4 mapping inventory to,
collected in an
at a minimum, include
inventory
major outfalls and bridge
geodatabase.
outfalls discharging
directly to surface waters,
and associated inlets,
catch basins, conveyances,
and flow directions
associated with primary
routes which are located
within Phase I MS4
permitted areas.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-1: Illicit Discharge Detection and Elimination BMPs- TS4 Mapping Program
Permit
3.4.4: Process and Schedule for the TS4 Mapping Program
Ref.
Modify the TS4SMP to include a process and schedule for the TS4 Mapping Program.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
24
Modify the TS4SMP to include a process and schedule for the TS4 Mapping Program
3.4.4 Modify the TS4SMP
1. If the process or
1. As needed
1. Needed and
to include a process and
schedule above
modified /
schedule for the TS4
requires major
Needed and not
Mapping Program.
updates, modify the
modified / Not
TS4SMP to include a
needed
process and schedule
for the TS4 Mapping
Program.
7.2 IDDE Program
Table 7-2: Illicit Discharge Detection and Elimination BMPs- IDDE
Permit
3.4.7: IDDE Plan and Reporting
Ref.
Maintain and implement a written IDDE Plan to detect and address illicit discharges, illegal dumping
and any non-stormwater discharges identified as significant contributors of pollutants to the TS4. The
plan shall provide standard procedures and documentation to:
a) Locate priority areas likely to have illicit discharges and illegal dumping that may impact surface
waters or result in aquatic trash.
b) Identify illicit discharges and sources within the Permittee's jurisdictional area.
c) Eliminate the source(s) of illicit discharge(s) resulting from NCDOT activities and non -roadway
facilities.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
25
1 Maintain a written IDDE Plan
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs- IDDE
3.4.7 Maintain and
1. Update written
1. Permit Year 2
1. Yes/No/Partial
implement a written IDDE
IDDE Plan.
Plan to detect and address
illicit discharges, illegal
2. Develop protocols
2. Permit Year 3
2. Yes/No/Partial
dumping and any non-
to implement new
stormwater discharges
procedures included
identified as significant
in the updated IDDE
contributors of pollutants
Plan.
to the TS4. The plan will
3. Update list of
3. Permit Year 3
3. Yes/No/Partial
address the required
components.
priority areas likely
to have illicit
discharges.
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
Permit
3.4.7: IDDE Plan and Reporting, continued
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
25
Maintain a written IDDE Plan, continued
cont.
4. Continue to
4. Annually, Permit
4. Yes/No/Partial
evaluate and assess
Years 1-5
the IDDE Program.
26
Implement the IDDE Plan
Implement the IDDE Plan
1. Identify illicit
1. Ongoing, Permit
1. Yes/No/Partial
discharge and illegal
Year 1-5
dumping when
performing other
work on the NCDOT
ROW.
2. Verify illicit
2. As needed, Permit
2. Number of
discharges and
Years 1-5
verified illicit
illegal dumps
discharges and
reported by NCDOT
illegal dumps
staff or the public.
3. Report verified
3. Ongoing as needed,
3. Number of illicit
discharges/illegal
Permit Years 1-5
discharges/illegal
dumping to
dumping reports
appropriate NCDEQ
to NCDENR
Regional Office.
4. Conduct dry
4. On schedule with
4. Report number
weather outfall
Field Inventory
of outfalls
inspections.
Procedure
inspected
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
5. Eliminate the
5. As needed, Permit
5. Number of illicit
source(s) of an illicit
Years 1-5
discharges from
discharge from
NCDOT non-
NCDOT non-
roadway
roadway facilities.
facilities
eliminated/None
found
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
Permit
3.4.6, 3.4.8, and 3.4.10: IDDE Reporting and Tracking.
Ref.
3.4.6 Maintain and implement standardized procedures and documentation for reporting illicit
discharges and illegal dumping to the appropriate NCDOT staff, NCDEQ Regional Office and/or local
government(s) having jurisdictional authority. Reporting shall be performed in a timely manner to
facilitate enforcement by others, or other action to eliminate the illicit discharge or illegal dumping
event.
3.4.8 Provide a standardized mechanism for tracking and documenting each verified illicit discharge
or illegal dumping event including date observed / reported, reporting source (staff, public,
contractor, etc.), the results of the investigation / verification, and the date any verified event was
reported to appropriate NCDOT staff, NCDEQ and/or local government having authority to resolve
the event.
3.4.10: Provide a mechanism for the traveling p- "' �, NCDOT staff, and contractors to report illicit
discharges and illegal dumping. The mechanism shall be publicized to facilitate reporting and shall be
managed to provide rapid response by appropriately trained personnel. (NCDOT manages the
reporting mechanism for internal and external audiences separately. Struck text is addressed
in BMP # 13)
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
27
Maintain IDDE reporting procedure
3.4.6 Maintain and
1. Maintain a process
1.Ongoing, Permit
1. Yes/No
implement standardized
for NCDOT staff and
Year 1-5
procedures and
contractors to
documentation for
report observed
reporting illicit discharges
IDDEs to
and illegal dumping to the
appropriately
appropriate NCDOT staff
trained NCDOT staff
for verification.
for verification.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
2. Maintain a process
2.Ongoing, Permit
2. Yes/No/Partial
for IDDEs reported
Year 1-5
by the public to be
submitted to
appropriately
trained NCDOT staff
for verification.
3. Appropriately
3.Ongoing, Permit
3. Yes/No/Partial
trained NCDOT staff
Year 1-5
to verify reported
IDDEs in a timely
manner.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
Permit
3.4.6, 3.4.8, and 3.4.10: IDDE Reporting and Tracking, continued
Ref
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual Reporting
for Implementation
Metric
27
Maintain IDDE reporting procedure, continued
cont.
4. Appropriately
4.Ongoing, Permit
4. Yes/No/Partial
trained NCDOT staff
Year 1-5
to report verified
IDDEs to NCDEQ
Regional Office
and/or local
government(s)
having jurisdictional
authority in a timely
manner.
28
Maintain IDDE tracking procedure
3.4.8 Maintain a standard
1. Update existing
1. Permit Year 1
1. Yes/No
IDDE tracking and
database of verified
documentation
illicit discharges or
procedure for verified
illegal dumping
IDDE including date
2. Maintain database
2. Ongoing, Permit
2. Yes/No
observed / reported,
of verified illicit
Year 1-5
reporting source (staff,
discharges or illegal
public, contractor, etc.),
dumping.
p g
the results of the
investigation /
verification, and the date
any verified event was
reported to appropriate
NCDOT staff, NCDEQ
and/or local government
having authority to
resolve the event.
29
Publicize reporting mechanism to NCDOT Staff and contractors
3.4.10 Publicize reporting
1. Publicize the
1. Ongoing, Permit
1. Yes/No
mechanism to NCDOT
reporting
Year 1-5
Staff and contractors.
mechanism to
NCDOT Staff and
contractors.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
Permit
3.4.9: Staff IDDE Training.
Ref.
Train NCDOT staff and contractors who, as part of their normal job responsibilities, may observe an
illicit discharge or illegal dumping. Training shall include how to identify, report, and document illicit
discharges and illegal dumping. Each training event shall be documented, including the
agenda/materials, date, and staff participating.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
30
Maintain IDDE training materials
3.4.9 Maintain training
1. Maintain training
1. Annually, Permit
1. Yes/No/ Partial
materials on how to
materials on how to
Years 1-5
identify, report and
identify, report and
document illicit
document illicit
discharges, illegal
discharges, illegal
dumping.
dumping.
2. Update training
2. As needed, Permit
2. Need and
materials as necessary.
Years 1-5
updated /
Needed but not
updated / Not
needed
31
Provide IDDE training for appropriate staff
3.4.9 Train NCDOT staff
1. Maintain "train the
1. Continuously,
1. Yes/No
and contractors who, as
trainer" and staff
Permit Years 1-5
part of their normal job
training materials.
responsibilities, may
observe an illicit
discharge or illegal
dumping.
2. Provide "train the
trainer" instruction to
appropriate staff.
2. Annually, Permit
Years 1-5
2. Yes/No
3. Distribute materials for
3. Annually, Permit
3. Yes/No
local trainers to train
Years 1-5
local staff.
4. Maintain a tracking
4. Annually, Permit
4. Yes/No
mechanism to
Years 1-5
document the "train the
trainer" instruction,
including the
agenda/materials, date.
5. Document date of
5. Continuously,
5. Number of
"train the trainer"
Permit Years 1-5
training events
instruction and agenda.
6. Make training materials
6. Continuously,
6. Yes/No / Not
available to contractors
Permit Years 1-5
needed
if needed.
7. Evaluate if an update to
7. Annually, Permit
7. Yes/No/ Not
or additional training
Year 1-5
needed
resources is needed.
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STORMWATER MANAGEMENT PLAN
Table 7-2: Illicit Discharge Detection and Elimination BMPs - IDDE
Permit
3.4.9: Staff IDDE Training, continue
Ref.
A
B C
D
BMP
No.
Description of BMP
Measurable Goal(s) Schedule
Annual
for Implementation
Reporting Metric
32
Provide IDDE training for appropriate contractors
1. Provide training to
1. Continuously,
1. Yes/No
appropriate contractors
Permit Years 3-5
through the Level I or
Level 11 ESC training.
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DRAFT STORMWATER MANAGEMENT PLAN
8 Construction Site Runoff Control Program
In accordance with 15A NCAC 02H .0153, NCDOT relies upon the North Carolina Sedimentation Pollution
Control Act (SPCA) of 1973 as a qualifying alternative program to meet a portion of the NPDES MS4
Permit requirements for construction site runoff control measures (See Table 8-1). The SPCA
requirements include reducing pollutants in stormwater runoff from construction activities that result in
land disturbance of greater than or equal to one acre, and includes any construction activity that is part
of a larger common plan of development that would disturb one acre or more. Projects performed by
others under a project -specific agreement with NCDOT to provide erosion and sediment control
activities are also covered under this permit.
NCDOT implements its Construction Program to control potential impacts to water quality from land
disturbance at construction sites and from borrow pit and waste pile activities. The Erosion and
Sediment Control (ESC) Program, which was delegated to NCDOT by the Sedimentation Control
Commission in February 1991, incorporates the applicable requirements of General Permit NCG010000
and includes implementation of appropriate erosion and sediment controls on construction projects.
The delegation agreement allows for NCDOT to review and approve ESC plans based on compliance with
SPCA, water quality regulations, and permit conditions associated with each project. The agreement also
authorizes NCDOT to perform compliance inspections for land disturbing activities associated with
highway construction. Although the Commission delegates compliance inspection to NCDOT, it did not
grant enforcement authority. Since NCDOT cannot issue a fine to itself, a series of policies and
procedures were developed to correct compliance issues with highway and maintenance construction
projects. These include procedures for public input, daily and monthly project inspections, and
corrective actions. NCDOT's Construction Program includes implementing and maintaining standard
specifications and project special provisions, providing guidance on ESC/stormwater issues, performing
inspections and monitoring of construction projects, maintaining NCDOT's reclamation process, and
providing ESC/stormwater training materials to contractors/ consultants. NCDOT invests substantial
financial resources into research efforts that will improve existing practices and procedures associated
with NCDOT's construction activities. Two keystones of the program include ongoing training
certifications and inspections.
The certification program provides the required personnel training to ensure compliance with
ESC/stormwater provisions on NCDOT projects. NCDOT requires all contractors and consultants to have
a certified supervisor and foreman to oversee operations on NCDOT projects to ensure compliance with
SPCA as well as other environmental regulations. Three different levels of certifications are available and
each one must be renewed every three years.
NCDOT is responsible for two types of inspections on each project: NPDES Self -Monitoring and SPCA
Self -Inspections. NPDES Self -Monitoring and SPCA Self -Inspections are conducted at least weekly or
after 1.0" of rainfall by a project inspector under guidance from the office of the resident engineer for
design -build or contract construction, or from the office of the county or district engineer for
maintenance projects. If needed, construction activities on -site can be halted to address ESC issues. REU
Field Operations staff inspects NCDOT projects monthly and completes an ESC/Stormwater Inspection
Report. These weekly inspections by project inspectors and monthly REU inspections are used to ensure
proper ESC measure installation, maintenance, and effectiveness as well as ground cover requirements.
These reviews ensure the proper ESC measures are in place for the phase of grading, and that necessary
field revisions are implemented to minimize the risk of sedimentation damage. Each project is evaluated
for overall compliance with the NPDES permit, NCG010000, and SPCA.
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NCDOT operates under its exemption from the Mining Act for borrow pits provided all materials are
used "in connection with the construction, repair, and maintenance" of our road system. Therefore, all
provisions for ESC and stabilization with ground cover for waste/borrow sites fall under the conditions of
NCDOT's delegated program under the Mining Act and SPCA. Currently, NCDOT requires reclamation
plans for all non-commercial waste/borrow sites. These plans address temporary erosion control, staged
seeding and mulching, fertilizer topdressing, and permanent stabilization. Final inspections are
conducted on all waste/borrow sites at project completion or prior to project completion if property
owners elect to resume/commence agricultural land disturbing activities on the site(s). Reclamation
sites that require dewatering operations will require an evaluation to determine setbacks to minimize
the risk of impacts to adjacent jurisdictional areas. Effluent from dewatering operations will be
monitored and the appropriate management procedures will be used to make sure NCDOT is following
the applicable regulations.
Table 8-1: Qualifying Alternative Program Components for Construction Site Runoff Control
Program
Permit
State or Local
Legal Authority
Implementing Entity
Reference
Program Name
3.5.1-
NCDOT
15A NCAC Chapter 04,
NCDOT
3.5.9
Delegated SPCA Program*
NCDEQ Approved
Delegation
* Guidance materials for NCDOT's delegated SPCA Program can be found at NCDOT's Connect site.
NCDOT also implements the following BMPs to meet NPDES MS4 Permit requirements, Table 8-2.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 8-2: Construction Site Runoff Control BMPs
Permit
3.5.1 and 3.5.5: Implement Delegated Program.
Ref.
3.5.1 Implement the NCDEQ Erosion and Sediment Control Program as delegated to NCDOT by the
Sedimentation Control Commission in February 1991, and as may be subsequently amended. This
program is authorized under the Sediment Pollution Control Act of 1973 and Chapter 4 of Title 15A
of the North Carolina Administrative Code.
3.5.5 Implement sediment and erosion control measures in keeping with the sediment and erosion
control program delegated by the North Carolina Sediment Control Commission for borrow pit and
waste pile projects, including activities at NCDOT ferry terminals associated with dredging activities
and contractor owned or leased borrow pits associated with NCDOT projects.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
33
Implement Delegated Program.
3.5.1 Implement the
1. Seek re -delegation of
1. Annually, Permit
1. Application
NCDEQ Erosion and
the program.
Years 1-5
submitted /
Sediment Control
application not
Program as delegated
submitted
to NCDOT.
2. Continue delegation of
2. Annually, Permit
2. Program delegated
the program.
Years 1-5
/ Program not
delegated
3. Participate in an Audit
3. Annually, Permit
3. Audit held / Audit
of the program as
Years 1-5
not required by
directed by DEMLR.
DEMLR
Table 8-2: Construction Site Runoff Control BMPs
Permit
3.5.2: Incorporate the requirements of NCG010000.
Ref.
Implement the requirements of General Permit No. NCG010000, as issued April 1, 2019 and as may
be subsequently amended. This condition supersedes the requirement to obtain a Certificate of
Coverage under General Permit No. NCG010000 for each subject construction activity.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
34
Incorporate the requirements of NCG010000 into NCDOT's delegated ESC Program
3.5.2 Incorporate the
1. Develop a project -specific
1. Continuously,
1. Number of ESC
requirements of
ESC plan incorporating the
Permit Years 1-5
plans
NCG010000 into
requirements of
developed
NCDOT's delegated
NCG0100000 to be
ESC Program.
reviewed and approved by
NCDOT.
2. Maintain information
2. Continuously,
2. Yes/No
regarding ESC in existing
Permit Years 1-5
NCDOT programs.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 8-2: Construction Site Runoff Control BMPs
3. Maintain the NCDOT
3. Continuously,
3. Yes/No
Erosion and Sediment
Permit Years 1-5
Control Design and
Construction Manual.
4. Maintain a program of
4. Weekly, Permit
4. Yes/No
routine inspections
Years 1-5
including NPDES Self -
Monitoring and SPCA Self -
Inspections.
5. Maintain program of
5. Monthly, Permit
5. Yes/No
compliance inspections at
Years 1-5
active construction sites.
6. Maintain a database of
6. Continuously,
6. Yes/No
inspections and corrective
Permit Years 1-5
actions.
7.Issue corrective actions in
7. As Needed,
7. Yes/No
response to inspections.
Permit Years 1-5
8. Halt construction activities
8. As Needed,
8. Yes/No
in response to inspections.
Permit Years 1-5
Table 8-2: Construction Site Runoff Control BMPs
Permit
3.5.3: Waste Management.
Ref.
Require construction site operators to control waste such as discarded building materials, concrete
truck washout, chemicals, litter, and sanitary waste at the construction site.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
35
Construction Site Waste Management
3.5.3 Construction site
1. Maintain guidance on
1. Continuously,
1. Yes/No
operators must control
waste disposal from
Permit Years 1-5
waste from such as
NCDOT construction
discarded building
sites.
materials, concrete truck
2. Require construction
2. Continuously,
2. Yes/No
washout, chemicals, litter,
site operators to
Permit Years 1-5
and sanitary waste.
control waste from
construction sites.
Permit
3.5.4: Means to notify of issues.
Ref.
Provide and promote a means for staff, contractors, and the public to notify the appropriate
authorities of observed erosion, sedimentation, or construction waste issues.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
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DRAFT STORMWATER MANAGEMENT PLAN
Table 8-2: Construction Site Runoff Control BMPs
36
Provide and promote a means to notify of issues.
3.5.4 Provide a means for
1. Maintain NCDOT's
1. Continuously,
1. Yes/No
staff, contractors, and the
Contact Us Citizen
Permit Years 1-5
public to report observed
Action Request (CARS)
erosion and sedimentation
website.
problems.
2. Observations by the
2. Continuously,
2. Yes/No
public are routed to
Permit Years 1-5
trained NCDOT staff.
3. Train appropriate
3. Continuously,
3. Yes/No
NCDOT Staff and
Permit Years 1-5
contractors to notify
site -specific staff as
part of Construction
Program training.
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DRAFT STORMWATER MANAGEMENT PLAN
I Table 8-2: Construction Site Runoff Control BMPs I
Permit 1.2, 3.5.6, and 3.5.7: Manage ESC on Borrow Pits and Waste Pile Projects.
Ref. 1.2 (second paragraph) Waste pile activities shall be covered under this permit unless the site requires
a permit from the Division of Waste Management. If a Division of Waste Management permit is
required, the facility also must obtain facility coverage under a separate NPDES industrial stormwater
permit.
3.5.6 Implement Reclamation Plans in keeping with the Reclamation Program established by the North
Carolina Mining and Energy Commission for borrow pit and waste pile projects, including activities at
NCDOT ferry terminals associated with dredging activities and contractor -owned or leased borrow pits
associated with NCDOT projects.
3.5.7 Implement borrow pit discharge management including appropriate measures to treat borrow pit
wastewater, inspections and maintenance, training field personnel overseeing borrow pit operations,
and evaluating and implementing appropriate new/innovative technologies.
BMP A B C D
No. Description of BMP Measurable Goal(s) Schedule Annual
for Implementation Reporting Metric
37 Manage ESC on Borrow Pits and Waste Pile Projects
3.5.6 Manage ESC on
Borrow Pits and Waste Pile
Projects including activities
at NCDOT ferry terminals
associated with dredging
activities and contractor -
owned or leased borrow
pits associated with NCDOT
projects.
Note: A non-commercial
borrow pit or waste pile is a
location that only supports
NCDOT operations and does
not sell materials to non-
NCDOT entities.
1. Maintain policies to
implement ESC
measures on non-
commercial borrow
pits/waste piles.
2. Develop and implement
an approved
reclamation plan on
non-commercial borrow
pit/waste pile projects.
The reclamation
measures utilized shall
be in keeping with the
reclamation program
established by the North
Carolina Mining and
Energy Commission.
3. Maintain policies to
implement appropriate
management measures
to treat borrow pit
discharges for given
conditions.
4. Inspect and maintain
borrow pit sites.
5. Maintain training
material and instruct
field personnel
overseeing borrow pit
operations.
1. Continuously,
Permit Years 1-5
2. Continuously,
Permit Years 1-5
3. Continuously,
Permit Years 1-5
4. Continuously,
Permit Years 1-5
5. Continuously,
Permit Years 1-5
1. Yes/No
2. Number of
new
reclamation
plans
implemented
3. Yes/No
4. Yes/No
5. Yes/No
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Table 8-2: Construction Site Runoff Control BMPs
Permit
1.2, 3.5.6, and 3.5.7: Manage ESC on Borrow Pits and Waste Pile Projects, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
37
Manage ESC on Borrow Pits and Waste Pile Projects, continued
cont.
6. Evaluate and implement
6. Continuously,
6. Yes/No
appropriate
Permit Years 1-5
new/innovative
technologies.
7. If a Division of Waste
7. As needed,
7. Needed and
Management permit is
Permit Years 1-5
acquired /
required, obtain facility-
Needed and
specific coverage under
not acquired /
a separate NPDES
Not needed
industrial stormwater
permit.
Permit
3.5.8: Maintain a list of projects subject to Delegated Program and NCG010000
Ref.
Maintain a current list of construction projects, borrow pits, waste piles, and dredge spoil piles subject
to the delegated Erosion and Sediment Control Program and General Permit No. NCG010000
requirements.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
38
Maintain a list of projects subject to Delegated Program and NCG010000
3.5.8 Maintain a current list
1. Develop a process to
1. Permit Year 1
1. Yes/No
of construction projects,
generate a list of
borrow pits, waste piles,
projects subject to
and dredge spoil piles
Delegated Program and
subject to the delegated
NCG010000.
Erosion and Sediment
2. Maintain a list of
2. Continuously,
2. Number of
Control Program and
projects subject to the
Permit Years 1-5
sites
General Permit No.
delegated Erosion and
NCG010000 requirements.
Sediment Control
Program and General
Permit No. NCG010000
requirements.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 8-2: Construction Site Runoff Control BMPs
Permit
3.S.9 Construction Activity Training
Ref.
Provide or require equivalent stormwater pollution awareness training for appropriate NCDOT
personnel and contractors involved in construction activities. Training shall include general
stormwater awareness, NPDES stormwater permit NCGO10000 implementation, construction site
waste management protocols, identification of stormwater pollution potential, appropriate spill
response actions and contacts for reporting spills and illicit discharges/illegal dumping.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
39
Provide training on erosion and sediment control (ESC) to appropriate staff
3.5.9 Provide or require
1. Train NCDOT staff on
1. Continuously,
1. Number of
equivalent stormwater
implementation of
Permit Years 1-5
staff with
pollution awareness
appropriate ESC design
Level III
training for appropriate
and applicable
ESC/SW
NCDOT personnel and
components of
Certification
contractors involved in
NCG010000.
2. Require appropriate
2. Continuously,
2. Description of
construction activities.
contractors to be trained
Permit Years 1-5
contract
on implementation of
language
appropriate ESC design
requiring
and applicable
Level I and/or
components of
II ESC/SW
NCG010000.
Certification
3. Provide construction staff
3. Continuously,
3. Yes/No
with training on general
Permit Years 1-5
stormwater awareness,
waste management
identification of
stormwater pollution
potential, appropriate spill
response actions.
4. Document date of
4. Continuously,
4. Number of
training, names of staff
Permit Years 1-5
training
trained, and agenda.
events
5. Make training materials
5. Continuously,
5. Yes/No / Not
available to contractors if
Permit Years 1-5
needed
needed.
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DRAFT STORMWATER MANAGEMENT PLAN
9 Post -Construction Controls
This TS4SMP identifies the specific elements to protect water quality, reduce pollutant loading, and
minimize post -construction impacts to water quality. NCDOT will continue to implement Post -
Construction Controls through several programs. The goal of these programs is to minimize water
quality impacts utilizing a combination of structural stormwater control measures (SCMs) and/or non-
structural BM Ps appropriate for the NCDOT. The programs and their targeted efforts include:
The BMP Retrofit Program, which incorporates both structural and non-structural
stormwater retrofits to address pollutant loading from existing NCDOT activities and to
evaluate new stormwater controls. Retrofits implemented under the program are not
associated with meeting the requirements of any other NCDEQ program unless otherwise
allowed. Each year, potential sites are evaluated and selected for retrofits under this
program. The Retrofits Program collaborates with the Research and BMP Toolbox
Programs to design, construct, and assess new and innovative BMP types or components.
In 2018, NCDOT developed a plan which envisioned a new program designed to identify
potential locations for retrofit BMPs. Named the Retrofit Opportunity Site Selection
(ROSS), the program is anticipated to improve the efficiency of delivering the Retrofit
Program by removing retrofit site selection from the critical path. Recently NCDOT made
substantial progress in developing the mobile field applications along with the
geodatabase schema designed to store the program's data. Testing and training of field
crews are in the planning stages.
The BMP Toolbox, which aids in the siting, design, and construction of stormwater quality
BMPs with guidance on the suitability of each for NCDOT applications. NCDOT continues
to evaluate other BMP technologies to assess their practical need in the NCDOT TS4 and
inclusion in the BMP Toolbox. The Toolbox Program works collaboratively with the
NCDOT's Research and Retrofits Programs to evaluate research on existing and new BMP
types for potential manual inclusion. If considered for inclusion, proprietary BMPs will be
evaluated in keeping with the current NCDEQ policy on new stormwater treatment
technologies.
NCDOT continues to make the Toolbox and related materials, such as the BMP Decision
Support Matrix, available to design engineers within NCDOT and for professional
engineering firms (PEFs) and other business partners which provide design services, by
posting the documents on its Connect website.
The Post -Construction Stormwater Program (PCSP), which is designed to promote
improvements to stormwater runoff from new NCDOT development and redevelopment
for new BUA. The PCSP requires structural and non-structural best management practices
to protect water quality, reduce pollutant loading, and minimize post -construction
impacts to water quality. The PCSP defines how post -construction controls in the
approved BMP Toolbox should be implemented for projects and describes a training
program for NCDOT staff and contractors to implement the BMP Toolbox and to
incorporate watershed quality strategies.
In 2021, NCDOT initiated the Project Delivery (IPD), an agency -wide initiative to improve
the processes of designing and implementing NCDOT activities. Historically, stormwater
management decisions have occurred in the latter part of project development, which can
result in project delays and increased costs. By integrating stormwater management
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DRAFT STORMWATER MANAGEMENT PLAN
decisions into the IPD workflow, NCDOT has moved some of the stormwater management
decisions steps up in the process, which has been documented in the Project Delivery
Network (PDN). The HSP will continue to solidify these processes in the PCSP update
planned for release by June 2022.
The PCSP also develops additional tools to guide and document BMP design. For example,
the Stormwater Management Plan (SMP), used to document stormwater management
efforts, has been updated to include an automated stormwater control summary table for
inclusion in construction plans. This will help aid in the transition of stormwater controls
from design through construction and into the inspection and maintenance phase of its
life cycle.
NCDOT has existing requirements for implementation of its NPDES TS4 post -construction requirements.
These existing requirements are defined in guidance, manuals and/or standard operating procedure(s)
as summarized in Table 9-1 below. In addition to the Post -Construction Control programs listed above,
NCDOT also utilizes guidance, manuals, and/or standard operating procedure(s) from its Erosion and
Sediment Control, Pesticide and Fertilizer Management, and SCM Inspection and Maintenance Programs
as well as other NCDOT documents to guide minimization of water quality impacts from post -
construction activities, as noted in the table below.
Table 9-1: Summary of Existing Post -Construction Program Elements
Existing Post -Construction
Document Title(s)
Date Adopted
Program Elements
3.6.1 BMP Retrofit Program
Retrofit Opportunity Site Selection
Planned 2022
(ROSS) protocol
3.6.2 BMP Toolbox
Stormwater Best Management Practices
2008, updated; 2014;
Toolbox and associated tools
planned update 2022
3.6.3(a) Toolbox implementation
PCSP Manual and associated tools
2014; planned update
2022
3.6.3(a) Toolbox implementation
Stormwater Management Plan (SMP)
2018, updated 2022
3.6.3(a) Toolbox implementation
Preliminary Stormwater Management
2022
Plan (pSMP)
3.6.3(a) Toolbox implementation
North Carolina Stochastic Empirical
2021
Loading and Dilution Model (NC-SELDM)
Catalog
3.6.3 Designs that provide adequate
Guided Reduction of Excess
2012
stormwater control measures
Environmental Nutrients (GREEN)
Stormwater Management Program —
Jordan Lake Watershed
3.6.3 Designs that provide adequate
GREEN Stormwater Management
2013
stormwater control measures
Program — Falls Lake Watershed
3.6.3 Designs that provide adequate
Jordan/Falls Lake Stormwater Nutrient
2014
stormwater control measures
Loading Accounting Tool
3.6.3 Designs that provide adequate
Environmental Sensitivity Map (ESM)
2008
stormwater control measures
3.5.1 Implement erosion and sediment
Best Management Practices for
2003
controls
Construction and Maintenance
Activities
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Table 9-1: Summary of Existing Post -Construction Program Elements, continued
Existing Post -Construction
Document Title(s)
Date Adopted
Program Elements
3.5.1 Implement erosion and sediment
Erosion and Sediment Control Design
2015
controls
and Construction Manual
3.7.5 TS4 Vegetation, Pesticide and
Vegetation Management Manual
2017
Fertilizer Management Program
3.7.4 SCM Inspection and Maintenance
SCM Inspection and Maintenance
2010; planned update
Program
Manual
2022
3.6.3 Designs that provide adequate
Guidelines for Drainage Studies &
2016; updated 2022
stormwater control measures
Hydraulic Design
The annual reporting metrics for the post construction program are provided in Tables 9-2 through 9-4
below.
9.1 BMP Retrofit Program
Table 9-2: Post Construction Control BMPs - BMP Retrofit Program
Permit
3.6.1: Implement a BMP Retrofit Program.
Ref.
Maintain a BMP Retrofit Program to address pollutant loading from existing NCDOT roadway and
non -roadway facilities. NCDOT will not be credited under this permit with retrofits implemented to
address other NCDEQ regulations unless otherwise allowed by NCDEQ or regulations. The Permittee
may partner with other entities to implement new retrofits outside of NNCDOT-ownedand operated
property. The Permittee shall:
a) Complete a total of seventy (70) retrofits over the 5-year term of this permit.
b) Maintain a retrofit inventory tracking system.
c) Implement a replacement retrofit for any retrofit completed after the effective date of this
permit and subsequently removed from service.
d) Maintain approved construction drawings and as -built plans consistent with the permit
requirement under 3.6.3(d) below for each structural retrofit established under this permit.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
40
Identify Potential Retrofit Locations
Identify potential
1. Maintain a
1. Continuously,
1. Yes/No
locations to retrofit that
database of
Permit Years 1-5
address pollutant loading.
potential retrofit
locations.
2. Add new locations
2. Continuously,
2. Number of new
identified each
Permit Years 1-5
locations added to
year to database
database and total
number of
locations
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Table 9-2: Post Construction Control BMPs - BMP Retrofit Program
Permit
3.6.1: Implement a BMP Retrofit Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
41
Complete Retrofits
3.6.1.a Complete a total of
1. Design and construct
1. Continuously,
1. Number of
70 retrofits over the 5-
or implement
Permit Years 1-5
retrofits
year term of this permit.
Maintain a retrofit
inventory tracking system.
retrofits appropriate
for the identified
pollutants of concern.
More than one
completed within
the permit year
and the total
number of
retrofit can be
retrofits over all
located at one
permit terms
location.
2. Maintain a retrofit
2. Continuously,
2. Number of
inventory tracking
Permit Years 1-5
retrofits in
system. Track status
development
of retrofits.
within the permit
year
3. Incorporate finished
3. Continuously,
3. Yes/No
SCM retrofits into the
Permit Years 1-5
I&M program.
4. Verify 70 retrofits are
4. Once, Permit
4. Yes/No
completed within the
Year 5
5-year term of the
permit.
42
Replace Retrofits that have been removed
3.6.1.b Implement a
1. Evaluate if any
1. Annually, Permit
1. Number of
replacement retrofit for
previously credited
Years 1-5
retrofits removed
any retrofit completed
retrofits have been
within the permit
after the effective date of
removed from
year
this permit and
service.
subsequently removed
2. Develop a procedure
2. Permit Years 2-3
2. Yes/No
from service.
to identify existing
retrofits that are to
be removed when
planning a new
project.
3. Initiate a plan for a
3. As needed,
3. Number of
new retrofit for each
Permit Years 1-5
replacement
applicable retrofit
retrofits initiated
removed.
within the permit
year
4. Update retrofit
4. As needed
4. Yes/No
inventory tracking
system.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 9-2: Post Construction Control BMPs - BMP Retrofit Program
Permit
3.6.1: Implement a BMP Retrofit Program, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
43
Maintain approved construction drawings and as -built plans
3.6.1.d Maintain approved
1. Maintain approved
1. Continuously,
1. Yes/No
construction drawings and
construction drawings
Permit Years 4-5
as -built plans consistent
and as -built plans
with the permit
consistent with the
requirement under
permit requirement
3.6.3(d) below for each
under 3.6.3(d) for
structural retrofit
each structural
established under this
retrofit established
permit.
after the effective
date of this permit.
9.2 BMP Toolbox
Table 9-3: Post Construction Control BMPs — BMP Toolbox
Permit
3.6.2 BMP Toolbox:
Ref.
a) The permittee shall maintain and implement the April 2014 NCDOT Stormwater BMP Toolbox
and subsequent approved revisions to provide design guidance for post -construction
stormwater control measures that are appropriate for linear roadway system application.
b) The BMP Toolbox shall include appropriate uses/anticipated applications, design criteria, and
shall aid in the siting and construction of stormwater quality BMPs.
c) The permittee shall review, and update if appropriate, the NCDOT Stormwater BMP Toolbox
once per permit term to include new BMP types, design components and guidance.
d) The permittee shall obtain Division approval of any proposed revisions to the NCDOT
Stormwater BMP Toolbox prior to implementation.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
44
Maintain a BMP Toolbox
3.6.2.a and 3.6.2.b Maintain
1. Review and evaluate if
1. Permit Year 1
1. Yes/No
a BMP Toolbox to provide
the BMP Toolbox to
design guidance for post-
include new BMP
construction stormwater
types, design
control measures
components and
guidance, if needed.
appropriate for a linear
highway system and aid in
siting and construction of
BMPs.
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Table 9-3: Post Construction Control BMPs — BMP Toolbox
Permit
3.6.2 BMP Toolbox, continued
Ref.
I
A
B
C
D I
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
I
for Implementation
Reporting Metric
44
Maintain a BMP Toolbox, continued
cont.
The Toolbox will include
2. Evaluate new BMP
2. Annually, Permit
2. Yes/No new
appropriate uses/
types and design
Years 1-5
BMP types
anticipated applications and
elements and recent
applicable/Ne
design criteria.
research to assess if
w BMP types
the existing Toolbox
were not
needs to be updated.
evaluated
3. Update the Toolbox as
3. Periodically, when
3. Toolbox
necessary.
determined
updated/Upda
necessary
to not
necessary
4. Submit proposed
4. Periodically, when
4. Yes,
revised or new
update is
submitted/No,
sections of the BMP
determined
Toolbox not
Toolbox toNCDEQfor
necessary
updated
approval prior to
implementation.
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DRAFT STORMWATER MANAGEMENT PLAN
9.3 Post -Construction Stormwater Program
Table 9-4: Post Construction Control BMPs - Post -Construction Stormwater Program
Permit
3.6.3: Implement a PCSP.
Ref.
Maintain a Post -Construction Stormwater Program (PCSP) to manage stormwater from new NCDOT
development and redevelopment for new built upon area by requiring structural and non-structural
BMPs to protect water quality, reduce pollutant loading, and minimize post -construction impacts to
water quality. The Permittee shall:
a) Define implementation of the approved NCDOT BMP Toolbox in the PCSP Manual.
b) Make relevant guidance, post -construction requirements, design standards/guidance,
checklists, and/or other materials available to staff and contractors.
c) Submit proposed updates to the PCSP to the Division for approval prior to implementation.
d) Define and implement a standard policy for preparing and maintaining structural
stormwater control measure (SCM) construction drawings and as -built plans on file.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
45
Develop and provide guidance for BMP Toolbox implementation and post -construction
requirements
3.6.3.a Define
1. Make guidance on
1. Continuously,
1. Yes/No/
implementation of the
how and when to
Permit Years 1-5
Partial
approved NCDOT BMP
implement the BMP
Toolbox and post-
Toolbox available to
construction SCMs in the
staff and contractors
PCSP Manual.
online.
3.6.3.c Submit proposed
2. Submit proposed
2. Periodically, when
2. Updated and
updates to the PCSP to the
guidance revisions to
updated
submitted /
Division for approval prior
NCDEQfor approval
Not needed
to implementation.
prior to
implementation.
46
Make guidance available
3.6.3.b Make relevant
1. Maintain a website
1. Continuously,
1. Yes/No/
guidance, post -construction
repository of
Permit Years 1-5
Partial
requirements, design
guidance documents.
standards, checklists,
and/or other materials
2. Verify the correct
2. Annually, Permit
2. Yes/No/
available to staff and
information is
Years 1-5
Partial
contractors.
displayed on the
website, and update
as needed.
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Table 9-4: Post Construction Control BMPs - Post -Construction Stormwater Program
Permit
3.6.3: Implement a PCSP, continued.
Ref.
A
B
C
D
BMP
No•
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
46
Make guidance available, continued
cont.
3. Maintain a current
3. Continuously,
3. Yes/No
version of the Post-
Permit Years 1-5
Construction
Stormwater Program
(PCSP) Manual and
associated
documents online.
4. Maintain a current
4. Continuously,
4. Yes/No
version of the BMP
Permit Years 1-5
Toolbox Manual
online.
5. Maintain a current
5. Continuously,
5. Yes/No
version of the SCM
Permit Years 1-5
Inspection and
Maintenance Manual
online.
6. Maintain current
6. Continuously,
6. Yes/No
versions of the
Permit Years 1-5
stormwater-related
design standards and
guidance online.
7.Review guidance to
7. Annually, Years 1--5
7. Yes/No
determine if updates
are needed.
8.Update guidance as
8. Periodically as
8. Need and
needed.
needed
updated /
Needed but
not updated /
Not needed
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Table 9-4: Post Construction Control BMPs - Post -Construction Stormwater Program
Permit
3.6.3: Implement a PCSP, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
47
Standard Policy for drawings and as -built plans
3.6.3.d Define and
1. Develop the policy
1. Permit Year 1
1. Yes/No/Partial
implement a standard
and process for
and 2
policy for preparing and
maintaining SCM
maintaining structural
construction drawings
stormwater control
and as -built plans on
measure (SCM)
file.
construction drawings and
2. Develop the database
2. Permit Year 2
2. Yes/No/Partial
as -built plans on file.
or repository for the
construction drawings
and as -built plans.
3. Provide training to
3. Permit Year 3
3. Yes/No/Partial
NCDOT Staff on
maintaining the
construction drawings
and as -built plans.
4. Implement the policy
4. Permit Year 3
4. Yes/No/Partial
and process for all
new SCMs.
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10 Pollution Prevention and Good Housekeeping Programs
This TS4SMP provides a comprehensive pollution prevention and good housekeeping strategy for
NCDOT's facilities and operations. Pollution prevention and good housekeeping is accomplished through
the implementation of seven required programs, which collectively address the ultimate goal of
preventing or reducing pollutant runoff from TS4 operations such as rest area maintenance, fleet and
building maintenance, new construction and land disturbances, and transportation storm sewer system
maintenance. Pollution prevention and good housekeeping for municipal operations includes the
following programs:
• TS4 Facilities Operation and Maintenance Program
• TS4 Spill Response Program
• TS4 Operation and Maintenance Program
• TS4 SCM Operation and Maintenance Program
• TS4 Fertilizer, Pesticide and Fertilizer Management Program
• TS4 Vehicle and Equipment Maintenance Program
• TS4 Litter Management Program
• TS4 Fecal Coliform Reduction Program
NCDOT's TS4 Facilities Operation and Maintenance Program involves maintaining and implementing a
site -specific Stormwater Pollution Prevention Plan (SPPP) for each non -roadway industrial facility and
non -roadway facility with TS4 operations. NCDOT SPPPs describe potential pollution sources at each
facility and provide BMPs to minimize potential impacts on stormwater runoff. The Spill Prevention
Control and Countermeasure (SPCC) Plan requirements of Title 40 of the Code of Federal Regulations,
part 112 (40 CFR 112) have been fully integrated into the SPPPs to emphasize oil spill prevention and
response practices at appropriate NCDOT facilities. NCDOT performs inspections and routine
maintenance and provides staff training on general stormwater awareness and implementing pollution
prevention and good housekeeping practices.
NCDOT's TS4 Spill Response Program focuses on minimizing spills from NCDOT facilities and operations.
NCDOT maintains spill prevention and response procedures and trains staff involved in handling
hazardous substances.
NCDOT maintains an extensive TS4 Operation and Maintenance Program for its TS4 collection system,
which includes storm drainage catch basins, inlets, and conveyances. NCDOT's TS4 Operation and
Maintenance Program involves standard practices that minimize pollutants from entering NCDOT's TS4
collection system from its roadways and non -roadway facilities. NCDOT Division staff and contactors
perform inspections of NCDOT's TS4 collection system to identify maintenance needs and they perform
both scheduled and non-scheduled system maintenance activities when needed. For example, NCDOT
conducts street sweeping at specific designated areas along NCDOT's ROW. NCDOT maintains
appropriate mechanisms for the public to report drainage issues, culvert blockages, or other concerns
along NCDOT roadways. NCDOT tracks and documents TS4 system maintenance activities. NCDOT also
provides training on stormwater awareness and pollution prevention to NCDOT staff that maintain
NCDOT's TS4 collection system.
NCDOT maintains a SCM Inspection and Maintenance (I&M) Program to aid in the inspection, operation,
and maintenance of TS4 owned, operated, and/or maintained SCMs that are installed for compliance
with NCDOT's PCSP. NCDOT maintains and updates a SCM I&M Manual, which includes written
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procedures outlining the inspection and maintenance of SCMs, inspection checklists and instructions for
routine and non -routine maintenance. The program assists NCDOT in better managing their stormwater
infrastructure assets. When new SCMs are added to the BMP Toolbox, the I&M Program evaluates them
for inspection and maintenance needs and updates the SCM I&M Manual if needed. The program also
oversees a comprehensive database system called the Stormwater Control Management System
(SCMS), which maintains an inventory of NCDOT's SCMs and tracks their inspection and maintenance
records. The I&M Program provides related training for staff and contractors in coordination with other
HSP program areas.
NCDOT maintains a TS4 Pesticide and Fertilizer Management Program. NCDOT's Roadside Vegetation
Management Section and Division Roadside Environmental staff manages application of pesticides,
fertilizers, and other vegetation management materials to minimize pollutant potential of stormwater
runoff. NCDOT implements appropriate pest control practices through consultation with the North
Carolina Department of Agriculture & Consumer Services (NCDA&CS) and North Carolina State
University (NCSU), using appropriate vegetation management materials (only those approved by USEPA
or NCDA&CS), updating NCDOT's Vegetation Management Manual as new technology and procedures
are developed, and providing routine training to staff and contractors. Vegetation management training
includes pollution prevention; the appropriate chemical use, storage, and handling practices used by
NCDOT; and vegetation management applicator certification requirements.
NCDOT maintains its TS4 Vehicle and Equipment Maintenance Program to make sure its vehicles and
equipment are fully functional and safe to operate as well as to prevent and minimize contamination of
stormwater runoff from areas used for TS4 vehicle and equipment maintenance activities. NCDOT has
an extensive preventative maintenance (PM) program managed by NCDOT's Equipment Unit for state
owned and operated vehicles and equipment. The PM program involves NCDOT staff and/or contractors
performing and documenting regular inspections and tests of its vehicles and equipment and
operational systems whose failure has a potential to release pollutants into the environment. The PM
program is designed to reduce vehicle and equipment breakdowns and failures by making proper and
timely adjustments, repair, or replacement of equipment or parts. NCDOT's PM standard operating
procedures include both run-time preventative maintenance and other regularly scheduled inspections,
cleaning, and minor repairs of vehicles and equipment to prevent and minimize fluid leaks that could
contaminate stormwater runoff. NCDOT Equipment Unit staff are trained in proper PM procedures, as
well as pollution prevention and good housekeeping practices.
NCDOT maintains a robust TS4 Litter Management Program. This program is managed and implemented
statewide by NCDOT's Roadside Environmental Unit, Litter Management staff, Division Roadside
Environmental Engineers and staff, Division maintenance personnel, and NCDOT contractors and
volunteers. While NCDOT is not the responsible party for litter on its transportation systems, NCDOT
implements measures to control litter and debris associated with vehicles. NCDOT maintains policies
and procedures to address litter on NCDOT-owned roads and parking lots within NCDOT right-of-way
(ROW) and at NCDOT non -roadway facilities. NCDOT HSP and Litter Management strategies include
BMPs to reduce litter in stormwater runoff from NCDOT roadways and non -roadway facilities. NCDOT
utilizes NCDOT Forces and Contract Litter Removal services to collect and dispose of litter and debris
from NCDOT ROW. NCDOT maintains appropriate mechanisms for the public to report litter or debris
along our roadways. NCDOT also develops and promotes anti -litter messaging, provides anti -litter
educational content to the public, and leverages numerous volunteers to assist with litter removal
efforts. NCDOT has scheduled litter collection efforts such as the biannual Litter Sweep, quarterly Adopt -
A -Highway collections by volunteer groups, and monthly or otherwise regularly scheduled Contract
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Litter Removal or Sponsor -A -Highway collections. NCDOT tracks and documents these litter removal
activities.
NCDOT maintains a TS4 Fecal Coliform Reduction Program that includes various measures to control or
minimize, to the maximum extent practicable, sources of fecal coliform from NCDOT non -roadway
facilities. NCDOT has installed and maintains numerous Pet Waste Stations at NCDOT Rest Areas,
Welcome Centers, and Ferry Terminals for the public to use. NCDOT also has procedures to manage on -
site domestic wastewater treatment systems and processes to connect sanitary discharges to public
owned treatments works, if feasible.
NCDOT will manage, implement, and report the pollution prevention and good housekeeping BMPs as
specified in Table 10-1 through Table 10-8 below for each required program.
Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and
Maintenance Program
Permit
3.7.1: Facilities Operation and Maintenance Program.
Ref.
The Permittee shall manage and operate facilities with stormwater pollution potential to minimize
the potential for polluted stormwater discharges. The Permittee shall:
a) Maintain a current inventory of non -roadway facilities that are owned and operated by the
Permittee and have the potential for generating polluted stormwater runoff. The inventory
shall also specifically identify and include each facility that is subject to NPDES industrial
stormwater permitting.
b) Establish and implement specific frequencies, schedules, and standard documentation for
facility inspections and routine maintenance.
c) Provide annual staff training for facility staff on general stormwater awareness,
implementing pollution prevention and good housekeeping practices, spill response,
preventative maintenance, and identifying and reporting illicit discharges and illegal
dumping.
d) NCDOT non -roadway facilities with TS4 operations will maintain and implement site -specific
Stormwater Pollution Prevention Plan (SPPP) to address good housekeeping and pollution
prevention from their operations.
e) Develop, maintain, and implement requirements in accordance with the current NPDES
industrial stormwater general permit applicable to each facility which is subject to NPDES
industrial stormwater permitting. This condition supersedes the requirement to obtain an
NPDES industrial stormwater general permit Certificate of Coverage for each subject facility.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
48
Maintain an Inventory of Non -roadway Facilities
3.7.1.a Maintain an
1. Develop list of non-
1.Year 1
1. Yes/No
inventory of non -roadway
roadway facilities (as
facilities with the potential
listed in paragraph
to contribute pollution to
1.1.4 of the permit)
stormwater runoff. The
inventory shall also
specifically identify and
include each facility that is
subject to NPDES industrial
stormwater permitting.
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Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and
Maintenance Program
Permit
3.7.1: Facilities Operation and Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
48
Maintain an Inventory of Non -roadway Facilities, continued
cont.
2. Identify non -roadway
2. Annually, Permit
2. Yes/No
industrial activities (as
Years 1-5
listed in paragraph 1.1.4
of the permit) which are
subject to NPDES
industrial stormwater
permitting.
3. Review non -roadway
3. Annually, Permit
3. Number of
facilities inventory to
Years 2-5
non -roadway
confirm its up to date.
facilities
49
Facility Inspections and Routine Maintenance
3.7.1.b Establish and
1. Establish inspection
1. Continuously,
1. Yes/No
implement specific
frequencies for each site
Permit Years 1-5
frequencies, schedules,
in the site -specific SPPP.
and standard
2. Continue the facility
2. Continuously,
2. Yes/No
documentation
for facility inspections
inspection program,
Permit Years 1-5
and routine
including daily, monthly,
maintenance.
semi-annual and annual
inspections as included in
the SPPP for each
applicable facility.
3. Document semi-annual
3. Annually, Permit
3. Number of
and annual compliance
Years 1-5
inspections
inspections.
4. Maintain a program to
4. Continuously,
4. Yes/No
perform routine
Permit Years 1-5
maintenance of material
handling areas and
stormwater systems at
applicable non -roadway
facilities.
5. Maintain preventative
5. Continuously,
5. Yes/No
maintenance program of
Permit Years 1-5
facility equipment and
systems.
6. Maintain a program to
6. As needed,
6. Yes/No
perform maintenance if
Permit Years 1-5
indicated during
inspection, as needed.
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Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and
Maintenance Program
Permit
3.7.1: Facilities Operation and Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
50
Provide training to facilities staff
3.7.1.c Provide annual
1. Maintain "train the
1. Continuously,
1. Yes/No
staff training for facility
trainer" and staff training
Permit Years 1-5
staff on general
materials.
stormwater awareness,
implementing pollution
2. Provide "train the
trainer" instruction to
2. Annually,
Permit Years 1-5
2. Yes/No
prevention and good
appropriate staff.
housekeeping practices,
3. Distribute materials for
3. Annually,
3. Yes/No
spill response,
preventative maintenance,
and identifying and
local trainers to train
local staff.
Permit Years 1-5
reporting illicit discharges
4. Maintain a tracking
4. Annually,
4. Yes/No
and illegal dumping.
mechanism to document
Permit Years 1-5
the "train the trainer"
instruction, including the
agenda/materials, date.
5. Document date of "train
5. Continuously,
5. Number of
the trainer" instruction
Permit Years 1-5
training events
and agenda.
6. Make training materials
6. Continuously,
6. Yes / No / Not
available to contractors if
Permit Years 1-5
needed
needed.
7. Evaluate if an update to
7. Annually,
7. Yes / No / Not
or additional training
Permit Year 1-5
needed
resources is needed.
51
Develop, maintain, and implement SPPPs NCDOT non -roadway facilities with TS4 operations
3.7.1.d NCDOT non-
1. Implement SPPPs
1. Continuously,
1. Yes/No
roadway facilities with TS4
following USEPA and
Permit Years 1-5
operations will maintain
NCDEQ guidance for
and implement a site-
stormwater pollution
specific Stormwater
prevention and BMPs.
Pollution Prevention Plan
2. For new activities or
2. Continuously,
2. Yes/No
(SPPP) to address good
facilities, the SPPP shall
Permit Years 1-5
housekeeping and
be developed and
pollution prevention from
implemented prior to
their operations, and
operation.
should include
inspections.
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Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and
Maintenance Program
Permit
3.7.1: Facilities Operation and Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
S1
Develop, maintain, and implement SPPPs NCDOT non -roadway facilities with TS4 operations,
cont.
continued
Non -roadway facilities with
3. Maintain a tracking
3. Continuously,
3. Yes/No
TS4 operations are
system for SPPP
Permit Years
inspected as part of the
implementation.
1-5
SPPP and/or Paragraph
3.7.6 in lieu of NCG080000
requirements for
stormwater point source
discharges from like
industrial activities, as
deemed to be similar by
DEMLR.
52
Implement General Permit Requirements for non -roadway industrial activities
3.7.1.e Develop, maintain,
1. Assess required facilities
1. Permit Year 1
1. Yes/No
and implement
and identify needs.
requirements in accordance
2 Update the SPPP for the
2. Permit Year 2
2. Yes/No
with the current NPDES
NC Global TransPark to
industrial stormwater
include applicable
general permit applicable to
requirements of
each facility which is subject
NCG150000.
to NPDES industrial
3. Update the SPPP for the
3. Permit Year 2
3. Yes/No
stormwater permitting. This
condition supersedes the
existing asphalt plant to
requirement to obtain an
include applicable
NPDES industrial
requirements of
stormwater general permit
NCG160000.
4. Update the SPPP for
4. Permit Year 3
4. Yes/No
Certificate of Coverage for
each subject facility.
Manns Harbor State
Shipyard to include
applicable requirements
of N CG 190000.
5. Update the SPPP for
5. Permit Year 3
5. Yes/No
Raleigh Railcar &
Locomotive Maintenance
Facility to include
applicable requirements
of NCG080000.
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Table 10-1: Pollution Prevention and Good Housekeeping BMPs - Facilities Operation and
Maintenance Program
Permit
3.7.1: Facilities Operation and Maintenance Program
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
52
Implement General Permit Requirements for non -roadway industrial activities, continued
cont.
6. Include applicable
6. As needed, prior
6. Not yet
requirements of
to operation
needed / Yes
NCG080000 in the SPPP
for Charlotte Railcar &
Locomotive Maintenance
Facility prior to
operation.
Table 10-2: Pollution Prevention and Good Housekeeping BMPs —Spill Response Program
Permit
3.7.2: Spill Response Program.
Ref.
The Permittee shall implement a spill response program for non -roadway NCDOT facilities that are
owned and operated by the Permittee. The Permittee shall:
a) Evaluate facilities to determine the potential for spills and associated impacts to the TS4 and
surface waters.
b) Maintain a current inventory of facilities that store and/or use materials that have the
potential to contaminate stormwater runoff or surface waters if spilled.
c) Maintain and implement written spill response procedures.
d) Provide annual spill response training for facility staff.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
53
Identify and Inventory non -roadway facilities with the potential to contaminate stormwater runoff
or surface waters from spills
3.7.2.a Evaluate facilities to
1. Develop a procedure to
1. Permit Year 2
1. Yes/No
determine the potential for
evaluate non -roadway
spills and associated
facilities for the
impacts to the TS4 and
potential for spills and
surface waters.
associated impacts to
the TS4 and surface
3.7.2.b Maintain a current
waters.
inventory of facilities that
2. Implement a procedure
2. Annually,
2. Yes/No
store and/or use materials
that have the potential to
to evaluate facilities.
Permit Years
contaminate stormwater
3 5
runoff or surface waters if
spilled.
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Table 10-2: Pollution Prevention and Good Housekeeping BMPs —Spill Response Program
Permit
3.7.2: Spill Response Program, continued
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
53
Identify and Inventory non -roadway facilities with the potential to contaminate stormwater runoff
cont.
or surface waters from spills, continued
3. Identify which non-
3. Annually,
3. Yes/No
roadway facilities that
Permit Years
store and/or use
3-5
materials having the
potential to
contaminate
stormwater runoff or
surface waters if
spilled.
54
Spill Response Procedures
3.7.2.c Maintain and
1. Maintain written spill
1. Continuously,
1. Yes/No
implement written spill
response procedures.
Permit Years 1-
response procedures.
5
2. Evaluate the spill
2. Annually,
2. Yes/No/Update
response procedures
Permit Years 1-
not needed
and update if needed.
5
3. Implement spill
3. As needed,
3. Needed and
response procedures.
Permit Years 1-
implemented /
5
Needed by not
implemented /
Not needed
55
Provide spill response training to appropriate staff
3.7.2.d Provide annual spill
1. Maintain "train the
1. Continuously,
1. Yes/No
response training for facility
trainer" and staff
Permit Years
staff who will respond to
training materials.
1-5
facilities that store and/or
2. Provide "train the
2. Annually,
2. Yes/No
use materials that have the
trainer" instruction to
Permit Years
potential to contaminate
appropriate staff.
1-5
stormwater runoff or
3. Distribute materials for
3. Annually,
3. Yes/No
surface waters if spilled.
local trainers to train
Permit Years
local staff.
1-5
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Table 10-2: Pollution Prevention and Good Housekeeping BMPs —Spill Response Program
Permit
3.7.2: Spill Response Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule for
Implementation
Annual
Reporting Metric
55
Provide spill response training to appropriate staff, continued
cont.
4. Maintain a tracking
4. Annually, Permit
4. Yes/No
mechanism to
Years 1-5
document the "train the
trainer" instruction,
including the agenda/
materials, date.
5. Document date of "train
5. Continuously,
5. Number of
the trainer" instruction
Permit Years 1-5
training events
and agenda.
6. Make training materials
6. Continuously,
6. Yes/No / Not
available to contractors
Permit Years 1-5
needed
if needed.
7. Evaluate if an update to
7. Annually, Permit
7. Yes/No/Not
or additional training
Year 1-5
needed
resources is needed.
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Table 10-3: Pollution Prevention and Good Housekeeping BMPs - TS4 Operation and Maintenance
Program
Permit
3.7.3: TS4 Operation and Maintenance Program.
Ref.
The operation and maintenance of the roadway stormwater collection system shall include a program
for reducing or eliminating the discharge of stormwater pollutants including particulates, sediment,
litter, and debris. The Permittee shall:
a) Develop and implement standard protocols for identifying and addressing high priority areas
which have potential for discharge of pollutants to surface waters.
b) Implement BMPs to reduce or eliminate the discharge of pollutants from high priority areas.
BMPs may include capture technologies; storm drain inlet grate design to minimize the entry
of pollutants into the storm sewer system; roadway sweeping; litter and debris removal;
catch basin and inlet inspections and cleaning, or other appropriate practices.
c) Establish, maintain and implement specific frequencies, schedules, and standard
documentation for inspection, operation, and maintenance of the TS4.
d) Train maintenance staff and contractors on stormwater awareness and pollution prevention,
performing TS4 inspections, identifying and reporting issues, and maintaining the collection
system including catch basins, inlets, outfalls and conveyances.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
56
Develop and implement standard protocols for identifying and addressing high -priority areas
3.7.3.a Develop and
1. Develop protocols
1. Permit Year 2
1. Yes/No
implement standard
for identifying high
protocols for identifying
priority areas which
and addressing high priority
have potential for
areas which have potential
discharge of
for discharge of pollutants
pollutants to surface
to surface waters.
waters.
2. Implement protocol
2. Permit Year 3
2. Yes/No
to identify high
priority areas
3. Develop protocols
3. Permit Year 3
3. Yes/No
for selecting BMPs
to address high
priority areas,
including prioritizing
specific areas with
highest potential
impacts
4. Develop training on
4. Permit Year 3
4. Yes/No
standard protocols
for identifying and
addressing high
priority areas
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Table 10-3: Pollution Prevention and Good Housekeeping BMPs - TS4 Operation and Maintenance
Program
Permit
3.7.3: TS4 Operation and Maintenance Program, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule for
Annual
Implementation
Reporting Metric
57
Implement BMPs to reduce or eliminate the discharge of pollutants from high -priority areas.
3.7.3.b Implement
1. Establish a
1. Permit Year 4
1. Yes/No
BMPs to reduce or
schedule to
eliminate the
implement BMPs
discharge of
requiring
pollutants from high-
significant design
priority areas. BMPs
and funding for
may include capture
prioritized
technologies; storm
locations.
2. Perform road
2. Continuously,
2. Document lane miles
drain inlet grate
design to minimize
sweeping activities
Permit Years 1-5
swept
the entry of pollutants
in selected areas
3. Perform litter and
3. Continuously,
3. Yes /No (pounds of litter
into the storm sewer
system; roadway
debris removal
Permit Years 1-5
to be included in total
sweeping; litter and
activities in
amount collected)
debris removal; catch
selected areas.
4. Initiate
4. Continuously,
4. Yes/No
basin and inlet
inspections and
implementation of
Permit Years 4-5
cleaning, or other
BMPs requiring
appropriate practices.
significant design
and funding for
prioritized
locations.
5. Implement BMPs
5. Continuously,
5. Number of BMPs
based on an
Permit Years 4- 5
implemented
established
schedule.
58
Maintain the TS4 collection system
3.7.3.c Establish,
1. Establish specific
1. Permit Year 2
1. Yes/No
maintain, and
frequencies and
implement specific
schedules for
frequencies,
inspections,
schedules, and
operation, and
standard
maintenance of
documentation for
the TS4 SMP,
inspection, operation,
based on
and maintenance of
prioritization of
the TS4.
roadway facility
type and potential
for impact to
water quality.
Page 66
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-3: Pollution Prevention and Good Housekeeping BMPs - TS4 Operation and Maintenance
Program
Permit
3.7.3: TS4 Operation and Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule for
Implementation
Annual
Reporting Metric
58
Implement BMPs to reduce or eliminate the discharge of pollutants from high -priority areas,
cont.
continued
2. Establish standard
2. Permit Year 2
2. Yes/No
documentation for
inspection, operation,
and maintenance of the
TS4.
3. Update existing training
3. Permit Years
3. Yes/No/
on inspecting,
3-5
Updates were
maintaining, and
not necessary
documenting
maintenance on the
collection system
including catch basins,
inlets, outfalls and
conveyances.
4. Perform current practices
4. Continuously,
4. Yes/No
of scheduled
Permit Years
maintenance on the TS4
1-3
collection system on an
established schedule.
5. Integrate new practices
4. Continuously,
4. Yes/No
into scheduled
Permit Years
maintenance on the TS4
4-5
collection system on an
established schedule.
6. Perform unscheduled
6. Continuously,
6. Yes/No
maintenance on the TS4
Permit Years
collection system based
1-5
on maintenance needs
identified after significant
storm events, citizen
complaints, or as
identified during other
operations.
Page 67
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-3: Pollution Prevention and Good Housekeeping BMPs - TS4 Operation and Maintenance
Program
Permit
3.7.3: TS4 Operation and Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule for
Implementation
Annual
Reporting Metric
59
Provide operation and maintenance training
3.7.3 d Train maintenance
1. Train appropriate staff
1. Annually, Permit
1. Yes/No
staff and contractors on
on stormwater
Years 1-5
stormwater awareness
awareness pollution
and pollution prevention,
prevention training in
performing TS4
conjunction with the
inspections, identifying
and reporting issues, and
facility where staff are
located.
2. Train appropriate staff
2. Annually, Permit
2. Yes/No
maintaining the collection
system including catch
on performing TS4
Years 1-5
basins, inlets, outfalls and
inspections,
conveyances.
identifying and
reporting issues.
3. Train appropriate staff
3. Annually, Permit
3. Yes/No
on maintaining the
Years 1-5
collection system
including catch basins,
inlets, outfalls and
conveyances.
4. Develop a procedure
4. Year 4
4. Yes/No
to implement training
requirements for
applicable contractor
staff.
5. Implement contractor
5. Year 5
5. Yes/No
training procedures
6. Integrate updated
6. As available
6. Yes/No
protocols into annual
training as new
protocols become
available.
7. Review training
7. Annually, Permit
7. Yes/No
materials annually
Years 1-5
8. Update guidance as
8. Periodically as
8. Need and
needed.
needed
updated /
Needed but not
updated / Not
needed
Page 68
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-4: Pollution Prevention and Good Housekeeping BMPs - SCM Inspection and Maintenance
Program
Permit
3.7.4: TS4 SCM Inspection and Maintenance Program.
Ref.
Measures to manage NCDOT owned, operated, and/or maintained SCMs. The permittee shall:
a) Maintain a current inventory of SCMs.
b) Inspect and maintain each SCM in accordance with appropriate operation & maintenance
criteria for the device, which shall include specific frequencies, schedules, and standard
documentation.
c) Train SCM inspection and maintenance staff and contractors on inspection, operation, and
maintenance of SCMs.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule for
Implementation
Annual
Reporting Metric
60
Maintain an SCM Inventory
3.7.4.a Maintain an SCM
1. Maintain an SCM
1. Continuously,
1. Yes/No
Inventory.
Inventory to include,
Permit Years 1-5
at a minimum, the
SCM location and
type.
2. Update inventory with
2. Continuously,
2. Number of
newly constructed
Permit Years 1-5
SCMs in
SCMs as needed.
inventory
61
Perform inspections and maintenance on SCMs
3.7.4.b Inspect and
1. Maintain the SCM
1. Continuously,
1. Yes/No
maintain each SCM in
I&M Manual, including
Permit Years 1-5
accordance with
written procedures
appropriate operation &
and criteria for the
maintenance criteria for
inspection and
the device, which shall
maintenance of SCMs.
2. Evaluate if the SCM
2. Annually, Permit
2. Yes and
include specific
frequencies, schedules,
I&M Manual needs to
Years 1-5
updated/ Yes
and standard
be updated.
but not
documentation.
updated /
Update not
needed
3. Perform inspections
3. Continuously,
3. Yes/No
and maintenance on
Permit Years 1-5
SCMs in accordance
with I&M Manual.
4. Inspect newly
4. Continuously,
4. Number of new
constructed SCMs.
Permit Years 1-5
projects
inspected
5. Track inspections and
5. Annually, Permit
5. Yes /No
maintenance of the
Years 1-5
SCMs in the inventory.
Page 69
NCDOT NPDES TS4 PERMIT NCS0002S0
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-4: Pollution Prevention and Good Housekeeping BMPs - SCM Inspection and Maintenance
Program
Permit
3.7.4: TS4 SCM Inspection and Maintenance Program, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
62
Provide training to staff performing SCM inspections
3.7.4.c Train SCM
1. Maintain training
1. Continuously,
1. Yes/No
inspection and
materials on the SCM
Permit Years 1-5
maintenance staff and
I&M Program and how
contractors on
to perform and
inspection, operation,
document inspections
and maintenance of
and operation.
SCMs.
2. Provide training on the
2. Annually, Permit
2. Number of staff
SCM I&M Program and
Years 1-5
trained
how to perform and
document inspections
and operation.
3. Make training materials
3. Continuously,
3. Yes/No/Not
available to contractors
Permit Years 1-5
needed
if needed.
4. Document date of
4. Continuously,
4. Number of
training, names of staff
Permit Years 1-5
training events
trained, and agenda.
Page 70
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-5: Pollution Prevention and Good Housekeeping BMPs — Vegetation, Pesticide and
Fertilizer Management Program
Permit
3.7.5: Vegetation, Pesticide and Fertilizer Management Program.
Ref.
The Permittee shall manage landscape chemical usage to minimize the potential for polluted
stormwater discharges. The Permittee shall:
a) Provide annual training for vegetation management personnel, and train or require
equivalent training for vegetation management contractors. Training shall consist of
appropriate uses and applications of pest control products (chemical agents) and shall also
cover proper mowing techniques; appropriate spill response and reporting; label -specific
uses, storage and handling of landscape products, tools and equipment; and the potential for
water quality impacts.
b) Use biological control measures as sanctioned by North Carolina Department of Agriculture
& Consumer Services (NCDA&CS).
c) Utilize only EPA and/or NCDA&CS approved pesticide and fertilizer products, and apply them
in accordance with the manufacturer's directions, labels, and restrictions.
d) Maintain compliance with applicable Pesticide Applicator licensing requirements.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
63
Provide training to vegetation management personnel
3.7.5.a Provide annual
1. Staff responsible for
1 Continuously,
1. Number of staff
training for vegetation
managing the
Permit Years 1-5
certified
management personnel,
application of
and train or require
pesticides will
equivalent training for
maintain certification
vegetation management
by the North Carolina
contractors. Training shall
Department of
consist of appropriate uses
Agriculture and
and applications of pest
Consumer Services
control products (chemical
(NCDA&CS) to include
agents) and shall also cover
appropriate uses and
proper mowing techniques;
applications of pest
appropriate spill response
control products
and reporting; label -specific
(chemical agents),
uses, storage and handling
label -specific uses,
of landscape products,
storage and handling
tools and equipment; and
of landscape products
the potential for water
and the potential for
quality impacts.
water quality.
2. Maintain training
2. Continuously,
2. Yes/No
3.7.5.d Maintain
compliance with applicable
materials to
Permit Years 1-
Pesticide Applicator
supplement
licensing requirements.
certification training,
as needed.
Page 71
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-5: Pollution Prevention and Good Housekeeping BMPs — Vegetation, Pesticide and
Fertilizer Management Program
Permit
3.7.5: Vegetation, Pesticide and Fertilizer Management Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
63
Provide training to vegetation management personnel, continued
cont.
3. Provide general
3. Annually, Permit
3. Number of staff
training on pollution
Years 1-5
trained
prevention and
chemical use, storage
and handling, spill
response and the
potential for water
quality for staff
involved in application
of pesticides and
fertilizers.
4. Provide training on
4. Annually, Permit
4. Number of staff
proper mowing
Years 1-5
trained
techniques, tools and
equipment; and the
potential for water
quality impacts to
staff performing
associated duties.
5. Make training
5. Continuously,
5. Yes/No/Not
materials available to
Permit Years 1-5
needed
contractors if needed.
6. Document date of
6. Continuously,
6. Number of
training, names of
Permit Years 1-5
training events
staff trained, and
agenda.
7. Require equivalent
7. Continuously,
7. Yes/No
training for vegetation
Permit Years 2-5
management
contractors through
contract language.
Page 72
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-5: Pollution Prevention and Good Housekeeping BMPs — Vegetation, Pesticide and Fertilizer
Management Program
Permit
3.7.5: Vegetation, Pesticide and Fertilizer Management Program, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
64
Implement appropriate pest control methods and practices
3.7.5.b Use biological
1. Continue to consult with
1. As Needed,
1. Yes/No/Not
control measures as
NCDA&CS and North
Permit Years 1-5
needed
sanctioned by North
Carolina State University
Carolina Department of
(NCSU), as needed, in
Agriculture & Consumer
selecting appropriate
Services (NCDA&CS).
pest control methods
and implementation
3.7.5.c Utilize only EPA
practices.
and/or NCDA&CS
2. Maintain and update
2. As Needed,
2. Yes/No
approved pesticide and
the NCDOT Roadside
Permit Years 1-5
fertilizer products, and
Vegetation
apply them in accordance
Management Manual as
with the manufacturer's
new methods and
directions, labels, and
practices are adopted.
restrictions.
3. Restrict pesticide and
3. Continuously,
3. Yes/No
fertilizer usage to those
Permit Years 1-5
materials approved by
EPA/NCDA&CS.
Pesticide and fertilizer
shall be used in
accordance with label
restrictions.
Page 73
NCDOT NPDES TS4 PERMIT NCS0002SO
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-6: Pollution Prevention and Good Housekeeping BMPs - Vehicle and Equipment Maintenance
Program
Permit
3.7.6: Vehicle and Equipment Maintenance Program.
Ref.
The Permittee shall maintain a Vehicle and Equipment Maintenance Program to prevent and minimize
contamination of stormwater runoff from TS4 vehicle and equipment maintenance and/or cleaning
activities. The Permittee shall:
a) Perform routine inspections of facilities, vehicles, and equipment, and establish specific
frequencies, schedules, and documentation for inspections, and re -inspections when issues
are identified.
b) Provide annual staff training for facility staff on general stormwater awareness, implementing
pollution prevention and good housekeeping practices, spill response, preventative
maintenance, and identifying and reporting illicit discharges and illegal dumping.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
65
Conduct inspections and preventative
maintenance on vehicles
and equipment
3.7.6.a Perform routine
1. Establish specific
1. Permit Year 2
1. Yes/No
inspections of facilities,
frequencies, schedules,
vehicles, and equipment,
and documentation
and establish specific
procedures for
frequencies, schedules,
inspections, and re -
and documentation for
inspections of facilities,
inspections, and re-
vehicles, and equipment
inspections when issues
when issues are
are identified.
identified.
2. Maintain procedures to
2. Continuously,
2. Yes/No
inspect active vehicles and
Permit Years 2-5
equipment in NCDOT's
fleet for maintenance
needs.
3. Implement
3. Permit Year 2
3. Yes/No
documentation
procedures for
inspections and re -
inspections.
4. Establish facility
4. Continuously,
4. Yes/No / All
inspection frequencies
Permit Years 1-5
facilities
and practices if not
covered under
already included in SPPPs
3.7.1.
under Paragraph 3.7.1.
5. Provide preventative
5. Continuously,
5. Yes/No
maintenance on active
Permit Years 1-5
vehicles and equipment in
NCDOT's fleet.
Page 74
NCDOT NPDES TS4 PERMIT NCS0002SO
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-6: Pollution Prevention and Good Housekeeping BMPs - Vehicle and Equipment
Maintenance Program
Permit
3.7.6: Vehicle and Equipment Maintenance Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
66
Provide training to staff maintaining vehicles and equipment
3.7.6.b Provide annual
1. Perform training on
1. Continuously,
1. Yes/No
staff training for facility
general stormwater
Permit Years 2-5
staff on general
awareness,
stormwater awareness,
implementing pollution
implementing pollution
prevention, good
prevention and good
housekeeping practices
housekeeping practices,
and spill response in
spill response,
conjunction with
preventative
training for facility staff.
2• Perform training on
2. Continuously,
2. Yes/No
maintenance, and
identifying and reporting
identifying and
Permit Years 2-5
illicit discharges and
reporting illicit
illegal dumping.
discharges and illegal
dumping in conjunction
with training for facility
staff.
3. Perform training on
3. Continuously,
3. Yes/No
preventative
Permit Years 2-5
maintenance.
4. Maintain training
4. Continuously,
4. Yes/No
materials.
Permit Years 2-5
Page 75
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-7: Pollution Prevention and Good Housekeeping BMPs - Litter Management Program
Permit
3.7.7: Litter Management Program.
Ref.
The Permittee shall maintain a Litter Management Program to prevent and minimize the discharge
of litter from the NCDOT right-of-way. The Permittee shall:
a) Continue to implement litter management programs to collect litter and debris and
minimize discharges to surface waters.
b) Establish and implement standard processes and documentation for routine litter
inspections and removal, performed at a minimum of quarterly, and including identification
of high priority areas that will receive more frequent inspections, removal and/or BMPs.
c) Utilize TS4 mapping efforts to support decisions on identification of high priority areas and
implementation of BMPs to prevent the discharge of litter to surface waters.
d) Implement BMPs to reduce or eliminate the discharge of litter and debris from high priority
areas. BMPs may include capture technologies; storm drain inlet grate design to minimize
the entry of litter and debris into the storm sewer system; litter and debris removal; catch
basin and inlet inspections and cleaning, or other appropriate practices.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
67
Continue to implement
litter management programs
3.7.7.a Continue to
1. Use NCDOT Forces to
1. Continuously,
1. Document
implement litter
collect litter/debris.
Permit Years 1-5
quantity of
management
litter/debris
programs to collect
collected
2. Use Contract Litter
2. Continuously,
2. Document
litter and debris and
minimize discharges to
Removal services to
Permit Years 1-5
quantity of
surface waters.
collect litter/debris.
litter/debris
collected
3. Continue Adopt -A-
3. Continuously,
3. Document
Highway Program.
Permit Years 1-5
quantity of
litter/debris
collected
4. Continue Sponsor -A-
4. Continuously,
4. Document
Highway Program.
Permit Years 1-5
quantity of
litter/debris
collected
5. Continue Swat -A-
5. Continuously,
5. Number of Swat -
Litterbug Program.
Permit Years 1-5
A -Litterbug
reports mailed
out
6. Dispose of litter
6. Continuously,
6. Quantity of total
collected through litter
Permit Years 1-5
litter/debris
management
collected
programs.
Page 76
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-7: Pollution Prevention and Good Housekeeping BMPs - Litter Management Program
Permit
3.7.7: Litter Management Program, continued
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
68
Establish routine litter inspections and removal
3.7.7.b Establish and
1. Establish standard
1. Permit Year 1
1. Yes/No
implement standard
processes for routine
processes and
litter inspections and
documentation for
removal to be
routine litter
performed quarterly.
2. Establish processes for
2. Permit Year 1
2. Yes/No
inspections and
removal, performed at
documentation of
a minimum of
routine litter
quarterly, and including
inspections and
identification of high
removal.
3. Implement standard
3. Continuously,
3. Document
priority areas that will
receive more frequent
processes and
Permit Years 1-5
quantity of
inspections, removal
documentation for
litter/debris
and/or BMPs.
routine litter
collected
inspections and
3.7.7.c Utilize TS4
removal, performed at
mapping efforts to
a minimum of
support decisions on
quarterly.
identification of high
4. Coordinate with NCDOT
4. Continuously,
4. Yes/No
priority areas and
Division Staff to identify
Permit Years 1-5
implementation of
high priority areas
BMPs to prevent the
where litter and debris
discharge of litter to
may enter surface
surface waters.
waters.
5. Utilize TS4 mapping
5. Permit Year 5
5. Yes/No
efforts to support
decisions on
identification of high
priority areas and
implementation of
BMPs to prevent the
discharge of litter to
surface waters.
6. Implement more
6. On established
6. Yes/No
frequent inspections
schedule, Permit
and litter removal in
Years 4-5
high priority areas.
Page 77
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-7: Pollution Prevention and Good Housekeeping BMPs - Litter Management Program
Permit
3.7.7: Litter Management Program, continued
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
69
Implement BMPs to reduce or eliminate the discharge of litter and debris from high priority areas.
3.7.7.d Implement BMPs
1. Establish a schedule to
1. Permit Year 3
1. Yes/No
to reduce or eliminate
implement BMPs
the discharge of litter
requiring significant
and debris from high
design and funding for
priority areas. BMPs may
prioritized locations.
2. Perform road sweeping
2. Continuously,
2. Document lane
include capture
technologies; storm
activities in selected
Permit Years 2-5
miles swept
drain inlet grate design
areas.
to minimize the entry of
3. Perform litter and
3. Continuously,
3. Yes /No (volume
litter and debris into the
debris removal
Permit Years 1-5
of litter to be
storm sewer system;
activities in prioritized
included in total
litter and debris
areas.
amount collected)
removal; catch basin and
4 Initiate implementation
4. Continuously,
4. Number of BMPs
inlet inspections and
of BMPs requiring
Permit Years 4-5
implemented
cleaning, or other
significant design and
appropriate practices.
funding for prioritized
locations.
5. Implement BMPs based
5. Continuously,
5. Yes/No
on an established
Permit Years 4- 5
schedule.
Page 78
NCDOT NPDES TS4 PERMIT NCS000250
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-8: Pollution Prevention and Good Housekeeping BMPs - Fecal Coliform Reduction I
Program
Permit
Ref.
BMP
No.
3.7.8: Fecal Coliform Reduction Program.
The Permittee shall control, to the maximum extent practicable, sources of fecal coliform from
NCDOT non -roadway facilities. At a minimum, the Permittee shall:
a) Maintain pet waste management measures at NCDOT rest areas and ferry terminals.
b) Connect on -site septic systems at NCDOT non -roadway facilities to publicly owned
treatment works (POTWs) where feasible; or properly operate and maintain the on -site
septic system. Proper operation and maintenance for septic systems shall include staff
training on general stormwater awareness, impacts of fecal coliform in receiving waters,
and how to properly operate and maintain the septic system.
A
Description of BMP
B
Measurable Goal(s)
70 1 Maintain a pet waste management measures
3.7.8.a Maintain
NCDOT's pet waste
management measures
at Rest Areas/Welcome
Centers and Ferry
Terminals.
1. Post signage and
make available pet
waste disposal
kiosks at Rest
Areas/ Welcome
Centers and Ferry
Terminals.
2. Provide public
education materials
about the impact of
pet waste to water
quality at Rest
Areas/Welcome
Centers and Ferry
Terminals.
71 1 Connect sanitary discharges to POTWs
3.7.8.b Connect on -site
septic systems at
NCDOT non -roadway
facilities to publicly
owned treatment
works (POTWs) where
feasible; or properly
operate and maintain
the on -site septic
system.
1. Operate and
maintain on -site
domestic
wastewater
treatment systems
in accordance with
manufacturer's and
State guidance.
2. Connect existing on -
site domestic
wastewater
treatment systems
to a POTW when
available.
N
Schedule
for Implementation
1. Continuously,
Permit Years 1-5
2. Continuously,
Permit Years 1-5
1. Continuously,
Permit Years 1-5
2. Annually, Permit
Years 1-5
D
Annual
Reporting Metric
1. Number of pet
waste stations
2. Yes/No
1. Yes/No
2. Yes/No
Page 79
NCDOT NPDES TS4 PERMIT NCS0002SO
DRAFT -July 29, 2022

DRAFT STORMWATER MANAGEMENT PLAN
Table 10-8: Pollution Prevention and Good Housekeeping BMPs - Fecal Coliform Reduction
Program
Permit
3.7.8: Fecal Coliform Reduction Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
71
Connect sanitary discharges to POTWs, continued
cont.
3.7.8.b Proper operation
3. Perform training on
3. Continuously,
3. Yes/No
and maintenance for
general stormwater
Permit Years 1-5
septic systems shall
awareness and
include staff training on
impacts of fecal
general stormwater
coliform in receiving
awareness, impacts of
waters in conjunction
fecal coliform in receiving
with training for
waters, and how to
facility staff.
4. Develop training for
4. Permit Years 2
4. Yes/No
properly operate and
maintain the septic
appropriate staff on
system.
how to properly
operate and maintain
the septic system.
5. Provide training for
5. Continuously,
5. Yes/No
appropriate staff on
Permit Years 3-5
how to properly
operate and maintain
the septic system.
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DRAFT STORMWATER MANAGEMENT PLAN
11 Total Maximum Daily Load Program
As part of its current Total Maximum Daily Load (TMDL) Program, NCDOT has developed and
implemented a process to address impaired waters identified in TMDLs in which NCDOT is named as a
significant contributor of the pollutant of concern and is assigned a WLA. The TMDL Program relies
heavily on data that is collected under the Research Program to inform pollutant loading and water
quality and watershed modeling decisions. TMDL compliance is supported through the Retrofits
Program and its efforts to identify suitable locations for stormwater retrofits and successfully implement
controls that achieve NCDOT's WLAs. NCDOT has collaborated with NCDWR's Modeling and Assessment
Branch, including recently providing support the upcoming modeling studies addressing impairments in
the Turkey Creek and Virginia Creek watersheds, developing partnerships in the Walnut Creek
watershed, and involvement in nutrient and watershed modeling studies throughout the state.
NCDOT maintains a database of TMDLs applicable to its discharges. NCDOT will manage, implement and
report the TMDL Program BMPs as specified in Table 11-1 below.
Table 11-1: Total Maximum Daily Load Program
Permit
3.8: Total Maximum Daily Load Program.
Ref.
The Permittee shall develop and implement a TMDL program. At a minimum, the Permittee shall:
3.8.1 For EPA -approved TMDLs that specifically name the Permittee as a significant contributor and
assigns a unique WLA to the Permittee that is separate from other sources, develop and
implement water quality improvement strategies.
3.8.2 For approved TMDLs that have no EPA -approved WLA which specifically assigns a unique WLA
to the Permittee, evaluate strategies and tailor and/or expand BMPs within the scope of this
permit to reduce the TMDL pollutant(s) of concern in the named watershed(s) to the
maximum extent practicable.
3.8.3 Describe any strategies and tailored and/or expanded measures in the TS4SMP.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
72
Track EPA -approved TMDLs
Track EPA -approved TMDLs.
1. Maintain a TMDL
1. Continuously,
1. Updated/Not
Tracking Database
Permit Years 1-5
updated/
to track TMDLs
Update not
that have been
needed since no
issued.
new TMDLs
were issued
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DRAFT STORMWATER MANAGEMENT PLAN
Table 11-1: Total Maximum Daily Load Program
Permit Ref.
3.8: Total Maximum Daily Load Program, continued.
A
B
C
D
BMP
Schedule
No.
Description of BMP
Measurable Goal(s)
for
Annual
Implementation
Reporting Metric
73
Address TMDLs where NCDOT is named as a significant contributor and is assigned a unique WLA
3.8.1 For EPA -approved
1. Track the number and
1. Annually, Permit
1. Number of
TMDLs that specifically name
status of TMDLs where
Years 1-5
applicable
the Permittee as a significant
NCDOT is named as a
TMDLs
contributor and assigns a
significant contributor
unique WLA to the Permittee
and a unique WLA is
that is separate from other
assigned to NCDOT.
sources, develop and
implement water quality
improvement strategies.
2. Develop a site -specific
2. As needed,
2. Number of new
water quality
Permit Years 1-
site -specific
improvement strategy.
5
strategies
developed
within permit
year / New
strategy in
development
/No new TMDLs
issued
3. Implement actions
3. Annually, Permit
3. Number of site -
described in site -specific
Years 1-5
specific
water quality
improvement
improvement strategies
strategies
under which
implementation
activities took
place
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DRAFT STORMWATER MANAGEMENT PLAN
Table 11-1: Total Maximum Daily Load Program
Permit
3.8: Total Maximum Daily Load Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
74
Address TMDLs where NCDOT is not assigned a unique WLA
3.8.2 For approved TMDLs that
1. For new projects,
1. Continuously,
1. Yes/No
have no EPA -approved WLA
evaluate
Permit Years 1-5
which specifically assigns a
implementation of
unique WLA to the Permittee,
the BMP Toolbox
evaluate strategies and tailor
and other design
and/or expand BMPs within
guidance tools to
the scope of this permit to
address water
reduce the TMDL pollutant(s)
quality pollutants of
of concern in the named
concern to the
watershed(s) to the maximum
MEP.
extent practicable (MEP).
2. To address existing
2. Permit Year 4
2. Yes/No
assets, develop
procedures to apply
protocols for
identifying high
priority areas under
the TS4 Operation
and Maintenance
Program to TMDL
watersheds.
3. Develop protocols
3. Permit Year 4
3. Yes/No
for selecting BMPs
to address high
priority areas in
TMDL watersheds,
including
prioritizing specific
areas with highest
potential impacts.
4. Develop training
4. Permit Year 4
4. Yes/No
on standard
protocols for
identifying and
addressing high
priority areas in
TMDL watersheds.
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DRAFT STORMWATER MANAGEMENT PLAN
Table 11-1: Total Maximum Daily Load Program
Permit
3.8: Total Maximum Daily Load Program, continued.
Ref.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
74
Address TMDLs where NCDOT is not assigned a unique WLA, continued
cont.
5. Utilize TS4 mapping
5. Permit Year 5
5. Yes/No
efforts to support
decisions on
identification of high
priority areas and
implementation of
BMPs to prevent the
discharge of litter to
surface waters.
75
3.8.3 Describe any strategies
1. Strategies
1. Annually, Permit
1. Yes/No
and tailored and/or
implemented within
Years 1-5
expanded measures in the
the reporting period
TS4SMP.
are described in the
annual report.
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DRAFT STORMWATER MANAGEMENT PLAN
12 Research Program
NCDOT's Research Program's primary mission is to support all aspects of the HSP through development
of practical solutions to stormwater management. NCDOT conducts research with faculty and staff at
state universities or other designated institutions that result in independent quantitative assessment of
stormwater from NCDOT's permitted activities and/or measure SCM effectiveness. NCDOT also conducts
research to enhance or improve existing practices, and to develop new methods or processes to meet
future permit requirements. As part of the program, NCDOT maintains a Research Plan that describes
the processes to request funding, to evaluate effectiveness of SCMs and to identify research needs.
NCDOT will manage, implement, and report the Research Program BMPs as specified in Table 12-1
below.
Table 12-1: Research Program
Permit
3.9: Research Program.
Ref.
The Permittee shall implement a Research Program. At a minimum, the Permittee shall:
3.9.1 Implement a Research Program to facilitate research to enhance or improve existing practices
or develop new methods or processes to meet TS4 permit requirements.
3.9.2 Conduct research with faculty and staff at state universities or other independent institutions
that result in impartial quantitative assessment of stormwater from NCDOT permitted activities
and/or measure structural BMP effectiveness.
BMP
A
B
C
D
No.
Description of BMP
Measurable Goal(s)
Schedule
for Implementation
Annual
Reporting Metric
76
Facilitate Research
3.9.1 Implement a Research
1. Maintain a
1. Continuously,
1. Yes/No
Program to facilitate research
Research Plan
Permit Years 1-5
to enhance or improve
addressing
existing practices or develop
research needs for
new methods or processes to
the permit
meet TS4 permit
requirements.
2. Assess needs and
2. Annually, Permit
2. Yes/No
requirements.
identify potential
Years 1-5
research projects.
3. Evaluate the
3. Annually, Permit
3. Yes/No
Research Plan to
Years 1-5
determine if
updates are needed.
4. Update the
4. As needed
4. Needed and
Research Plan
updated /
Needed and not
updated / Not
needed
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DRAFT STORMWATER MANAGEMENT PLAN
Table 12-1: Research Program
Permit
3.9: Research Program, continued.
Ref.
A
B
C
D
BMP
No.
Description of BMP
Measurable Goal(s)
Schedule
Annual
for Implementation
Reporting Metric
77
Conduct Research
3.9.2 Conduct research with
1. Perform or
1. Continuously,
1. Number of
faculty and staff at state
sponsor research
Permit Years 1-5
active research
universities or other
in accordance
projects related
independent institutions that
with Research
to the permit
result in impartial quantitative
Plan.
2. Complete the
2. As needed,
2. Yes, form
assessment of stormwater
from NCDOT permitted
Research and
Permit Years 1-5
completed /
activities and/or measure
Development Close
Form not
structural BMP effectiveness.
Out
completed / No
Implementation
new research
Plan form for
completed this
NCDOT's Research
year
and Development
Program.
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