NCS000303_FINAL PERMIT_19960201

—STORMINATER-DIVISfON-CODING-SNEET -- ------
PERMIT N0.
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DOC TYPE
FINAL PERMIT
MONITORING INFO
❑ APPLICATION
❑ COMPLIANCE
0 OTHER
DOC DATE
a la%o2o1
YYYYMMDD

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
February 1, 1996
Mr. Eugene Hitch
Waukesha Electric Systems
P. O. Box 268
Goldsboro, NC 27530
Subject: Permit Modification - Name Change
Waukesha Electric Systems
NCS000303
formerly: Hevi-Duty Electric Co.
Wayne County
Dear Hitch:
In accordance with your request received January 11, 1996, the Division is forwarding the subject
permit. The only changes in this permit are in the name and the elimination of the "sampling window"
(page 8, Footnote 1, Measurement Frequency), All other terms and conditions in the original permit
remain unchanged and in full effect. This permit modification is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina
and th-. U. S. Environmental Protection Agency dated December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative
Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is
made, this decision shall be final and binding.
545.
If you have any questions on this permit; please. contact Steve Ulmer at 919/ 733-:50Rl, extension
Sincerely,
eo Z,�.�
tp` A. Preston Howard, Jr., P.E.
M. Central Files
Washington Regional Office, Water Quality Section
Compliance -Jeanne Phillips, 1SB
Permits and Engineering, file NCS000303 ✓
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NCS000303
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE STORMWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management Commission,
and the Federal Water Pollution Control Act, as amended,
Waukesha Electric Systems
is hereby authorized to discharge stormwater from a facility located at
2701 US Hwy 117 So,
Goldsboro
Wayne County
to receiving waters designated as Neuse River, a class C NSW stream, in the Neuse River Basin
in accordance with the discharge limitations, monitoring requirements, and other conditions set forth in
Part,- I, I1, III, and IV hereof.
This permit shall become effective February 1, 1996.
This permit and the authorization to discharge shall expire at midnight on January 31, 2001.
Signed this day February 1, 1996.
kpr- A. Preston Howard, Jr., P.E., Director
VV Division of Environmental Management
By the Authority of the Environmental Management Commission

Permit No, NCS000303
PERMITTED ACTIVITIES
Until this permit expires or is modified or revoked, the permittee is authorized to discharge
stormwater to the surface waters of North Carolina or separate storm sewer system which has been
adequately treated and managed in accordance with the terms and conditions of this Permit. All
discharges shall be in accordance with the attached schedules as follows:
Part I: Monitoring, Controls, and Limitations for Permitted Discharges
Part II: Standard Conditions for NPDES Stormwater Permits
Part III: Limitations Reopener
Part IV: Administering and Compliance Monitoring Fee Requirements
Any other point source discharge to surface waters of the state is prohibited unless covered by
another permit, authorization or approval.
This permit does not relieve the permittee from responsibility for compliance with any other
applicable federal, state, or local law, rule, standard, ordinance, order, judgement, or decree.
Page 2

Permit No. NCS000303
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Base Map Taken from USGS 7.5-Minute Series Topographic Map
Southwest Goldsboro, N.C. Quadrangle, 1974, OCJADRANGLE LOCATION
Datum is National Geodetic Vertical Datum of 1929 (NGVD).
Elevation Contour Interval is 5 feet.
f-{ev's-Duty Electric Storm Water Permitting Assessment
Goldsboro, North Carolina ltity SITE LOCATION PLAN
G ;SrDlina
GPI Consultaacs, Inc. Page 3 ;9 November 15, 1991 FIGURE 1

Permit No. NCS000303
MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED
DISCHARGES
SECTION A: FINAL LIMITATIONS AND CONTROLS FOR STORMWATER DISCHARGES
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge stormwater associated with industrial activity. Such
discharges shall be controlled, limited and monitored as specified below.
1. Stormwater Pollution Prevention Plan
The Permittee shall develop a Stormwater Pollution Prevention Plan, herein after referred to as the
Plan. This Plan shall be considered public information in accordance with Part II, Standard
Conditions, Section E.8. of this permit. The Plan shall include, at a minimum, the following
items:
a. Site Plan. The site plan shall provide a description of the physical facility and the potential
pollutant sources which may be expected to contribute to contamination of stormwater
discharges. The site plan shall contain the following:
(1) A general location map (USGS quadrangle map or appropriately drafted equivalent
map), showing the facility's location in relation to transportation routes and surface
waters, the name of the receiving water(s) to which the Stormwater outfall(s)
discharges, or if the discharge is to a municipal separate-- storm sewer system, the
name of the municipality and the ultimate receiving waters; and accurate latitude
and longitude of the point(s) of discharge.
(2) A narrative description of storage practices, loading and unloading activities,
outdoor process areas, dust or particulate generating or control processes, and
waste disposal practices.
(3) A site map drawn to scale with the distance legend indicating location of industrial
activities (including sturage of materials, disposal areas, process areas and loading
and unloading areas), drainage structures, drainage areas for each outfall and
activities occurring in the drainage area, building locations and impervious surfaces,
and the percentage of each drainage area that is impervious. For each outfall, a
narrative description of the potential pollutants which could be expected to be
present in the stormwater discharge.
(4) A list of significant spills or leaks of pollutants that have occurred at the facility
during the 3 previous years and any corrective actions taken to mitigate spill
impacts.
(5) Certification that the stormwater outfalls have been evaluated for the presence of
non-stormwater discharges. The certification statement will be signed in
accordance with the requirements found in Part II, Standard Conditions, Section
B. 9.
Page 4

Permit No. NCSO00303
b. Stormwatcr Management Plan. The stormwater-management plan shall contain a narrative
description of the materials management practices employed which control or minimize the
exposure of significant materials to stormwater, including structural and nonstructural
measures. The stormwater management plan, at a rnuumum, shall incorporate the
following: --------- ._. -...
(1) A study addressing the technical and economic feasibility of changing the methods
of operations and/or storage practices to eliminate or reduce exposure of materials
and processes to stormwater. Wherever practicable the permittee shall cover all
storage'areas, material handling operations, manufacturing or fueling operations to
prevent materials exposure to stormwater. In areas where elimination of exposure
is not practicable, the stormwater management plan shall document the feasibility of
diverting the stormwater runoff away from areas of potential contamination.
(2) A schedule to provide secondary containment for bulk storage of liquid materials,
storage of Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) water priority chemicals, or storage of hazardous
materials to prevent leaks and spills from contaminating stormwater runoff. If the
secondary containment devices are connected directly to stormwater conveyance
systems, the connection shall be controlled by manually activated valves or other
similar devices [which shall be secured with a locking mechanism] and any
stormwater that accumulates in the containment area shall be at a minimum visually
observed for color, foam, and visible sheens, prior to release of the accumulated
stormwater. Accumulated stormwater shall be released if found to be
uncontaminated. Records documenting the individual making the observation, the
description of the accumulated stormwater and the date and time of the release shall
be kept for a period of five years.
(3) A narrative description shall be provided of Best Management Practices (BMPs) to
be considered such as, but not limited to, oil and grease separation, debris control,
vegetative filter strips, infiltration and stormwater detention or retention, where
necessary. The need for structural BMPs shall be based on the assessment of
potential of sources to contribute significant quantities of pollutants to stormwater
discharges and data collected through monitoring of stormwater discharges.
(4) Inspection schedules of stormwater conveyances and controls and measures to be
taken to limit or prevent erosion associated with the stormwater systems.
Spill Prevention and Response Plan. The Spill Prevention and Response Plan shall
incorporate a risk assessment of potential pollutant sources based on a materials inventory
of the facility. Facility personnel (or team) responsible for implementing the plan shall be
identified in the plan. A responsible person shall be on -site at all times during facility
operations that have the potential to contaminate stormwater runoff through spills or
exposure of materials associated with the facility operations.
d. Preventative Maintenance and Good Housekeeping Program. A preventative maintenance
program shall be developed. The program shall document schedules of inspections and
maintenance activities of stormwater control systems, plant equipment and systems.
Inspection of material handling areas and regular cleaning schedules of these areas shall be
incorporated into the program.
e. Employee Training. Training schedules shall be developed and training provided at a
minimum on an annual basis on proper spill response and cleanup procedures and
preventative maintenance activities for all personnel involved in any of the facility's
Page 5

Permit No. NCS000303
operations that have the potential to contaminate Stormwater runoff. Facility personnel (or
team) responsible for implementing the training shall be identified in the Plan.
Responsible Party. The Stormwater Pollution Prevention Plan shall identify a specific
position(s) responsible for the overall coordination, development, implementation, and
revision to the Plan. Responsibilities for all components of the Plan shall be documented
and position(s) assignments provided.
9. Plan Amendment. The permittee shall amend the Plan whenever there is a change in
design, construction, operation, or maintenance which has a significant effect on the
potential for the discharge of pollutants to surface waters. The Stormwater Pollution
Prevention Plan shall be reviewed and updated on an annual basis.
The Director may notify the permittee when the Plan does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall
submit a time -schedule to the Director for modifying the Plan to meet minimum
requirements. The permittee shall provide certification in writing (in accordance with Part
II, Standard Conditions, Section B, #9) to the Director that the changes have been made.
h , Facility Inspections. Inspections of the facility and all stormwater systems shall occur at a
minimum on a semiannual schedule, once in the fall (September -November) and once
during the spring (April - June). The inspection and any subsequent maintenance activities
performed shall be documented, recording date and time of inspection, individual(s)
making the inspection and a narrative description of the facility's stormwater control
systems, plant equipment and systems. Records of these inspections shall be incorporated
into the Stormwater Pollution Prevention Plan.
Visual monitoring as required in I.A.2.g.(3) shall. be performed in addition to facility
inspections.
Implementation. Implementation of the plan shall include documentation of all monitoring,
measurements, inspections and maintenance activities and training provided to employees,
including the log of the sampling data and of activities taken to implement BMPs associated
with the industrial activities, including vehicle maintenance activities. Such documentation
shall be kept on -site for a period of five years and made available to the Director or his
authorized representative immediately upon request.
2. Minimum Monitoring and Reporting Requirements
Minimum monitoring and reporting requirements are as follows unless otherwise approved in
writing by the Director of the Division of Environmental Management.
a. If a facility has multiple discharge locations with substantially identical stormwater
discharges that are required to be sampled, the permittee may petition the Director for
representative outfall status. If it is established that the stormwater discharges are
substantially identical and the permittee is granted representative outfall status, then
sampling requirements may be performed at a reduced number of outfalls.
b. Visual monitoring for color, odor, solids, foam, outfall staining, visible sheens and dry
weather flow shall be performed at all Stormwater discharge outfall locations. All visual
monitoring shall be documented and records maintained with the Stormwater Pollution
Prevention Plan. The initial visual monitoring event shall be performed simultaneously
Page 6

Permit No. NCS000303
with the first analytical monitoring event and documentation of only this initial visual
monitoring event shall be submitted along with the required analytical monitoring submittal.
c. For purposes of the stormwater sampling required in this permit, all samples shall be
collected from a discharge resulting from a representative storm event (See Part II,
Standard Conditions, Section A). Failure to monitor storm events -in accordance with the
specified frequency shall constitute a violation of this permit. If the stormwater runoff is
controlled by a detention pond, the following sampling requirements shall apply:
(1) If the detention pond detains the runoff generated by one inch of rainfall for 24
hours, visual observations for color, foam, outfall staining, visible sheens, and dry
weather flow are required, but analytical sampling shall not be required.
(2) If the detention pond discharges only in response to a storm event exceeding a 25-
year, 24-hour storm (See Part II, Standard Conditions, Section A), the pond shall
be considered a non -discharging stormwater control system and not subject to
NPDES requirements, unless the discharge causes a violation of water quality
standards.
d. Samples analyzed in accordance with the terms of this permit shall be submitted on forms
provided by the Director no later than January 31 for the previous year in which sampling
was required to be performed.
e. Analytical results from sampling during the final year of the permit term shall be submitted
with the permit renewal application.
This permit regulates stormwater discharges. Non-stormwater discharges which shall be
allowed in the stormwater conveyance system are:
(1) All other discharges that are authorized by a non-stormwater NPDES permit.
(2) Uncontaminated groundwater, foundation drains, air -conditioner condensate
without added chemicals, springs, discharges of uncontaminated potable water,
waterline and fire hydrant flushings, water from footing drains, flows from riparian
habitats and wetlands.
(3) Discharges resulting from fire -fighting.
If the storm event monitored and reported in accordance with this permit coincides with a
non-stormwater discharge, the pernvttee shall separately monitor and report all parameters
as required under the non-stormwater discharge permit and provide this information with
the stormwater discharge monitoring report.
Sample location should occur upstream at Latitude: 35 deg., 21 min., 12 sec. and
Longitude: 78 deg., 1 min., 48 sec. This location would better represent stormwater that
discharges from facility. The original outfall contains others sources that would effect
results from sampling.
Page 7

Permit No. NCS000303
g. Specific Stormwater Monitoring Requirements
The specific stormwater monitoring requirements includes both analytical and visual monitoring of
stormwater samples. Specific monitoring requirements are defined below.
(1) Analytical Monitoring
Stormwater Discharge
Characteristics
Units
Measurement
Fre uenc I
Sample,
lype2
Sample
Location3
Polychlorinated bi hen Is
u
annually
Grab
SDO
Oil and Grease
mo
annually
Grab
SDO
H
S.U.
annually
Grab
SDO
Total Rainfall4 i
inches
Event Duration4
minutes
Total How4
MG
SDO
Footnotes:
1 Measurement Frequency: Once per year. The facility must perform analytical
sampling during the first and last year of the permit term regardless of cut-off
concentration conditions.
2 Sample Type: Defined in Part II, Standard Conditions, Section A.
3 Sample Location: S--_,mples to be taken at designated stormwater discharge outfall
(SDO) upstream approximately Latitude: 35 deg., 21 min., 12 sec., Longitude: 78
deg., 01 min., 48 sec. This location will better represent stormwater that discharges
from Hevi-Duty's plant site. The original outfall contains other sources that would
effect results from sampling.
4 For each sampled representative storm event the total precipitation, storm duration,,
and total flow must be monitored. Total flow shall be either; (a) measured
continuously, (b) calculated based on the amount of area draining to the outfall, the
amount of built -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20 minute intervals during the rainfall
event.
Page 8

Permit No. NCS000303
(2) Cut-off Concentrations
For each parameter, the arithmetic mean of -all analytical sampling results collected during the
term of the permit shall be calculated for each individual outfall and compared to the cut-off
concentrations listed below. If the arithmetic mean meets the specified cut-off concentration
condition for a given parameter, then the facility is not required to continue annual analytical
monitoring for that parameter at that outfall unless a significant change in facility operations or
configuration occurs. If a cut-off concentration results in discontinued analytical monitoring,at
an individual discharge outfall, the permittee is required to maintain facility operations that
ensure the continuation of stormwater runoff quality.
The permittee must perform analytical sampling during the first and last year of the permit term
regardless of cut-off concentration conditions. 'Analytical results from sampling during the
final year of the permit term must be submitted with the permit renewal application,
Stormwater Dischar e Characteristics
Cut-off Concentration
Polychlorinated bi hen is (PCB)
< 1.0 u
Oil & Grease
< 30.0 mgA
H
within M1190.0 - 9.0 s.u.
Footnotes:
1 pH cannot be averaged due to the nature of the logarithmic pH scale. The most recent pH
sample result shall be used for cut-off concentration purposes.
Page 9

Permit No. NCS000303
(2) Visual Monitoring
Visual monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the
Stormwater Pollution Prevention Plan (SWPPP) and assessing new sources of stormwater
pollution. No analytical tests are required. Visual monitoring of stormwater outfalls does not
need to be performed during a representative storm event.
Stormwater Discharge
Characteristics
Fre uenc l
Monitoring
jype2
Monitoring
Location3
Color
Semi -Annual
Visual
SDO
Odor
Semi -Annual
Visual
SDO
Claris
Semi -Annual
Visual
SDO
Floating Solids
Semi -Annual
Visual
SDO
Suspended Solids
Semi -Annual
Visual
SDO
Foam
Semi -Annual
Visual
SDO
Oil Sheen
Semi -Annual
Visual
SDO
Other obvious indicators
of stormwater pollution
Semi -Annual
Visual
SDO
Footnotes:
l Frequency: All visual monitoring will be performed twice per year, once in the
spring and once in the fall. The information is to be incorporated into the SWPPP.
2 Monitoring Type: Visual monitoring requires a qualitative visual observation of each
stormwater outfall. No analytical testing or sampling is required.
3 Sample Location: Stormwater Discharge Outfall (SDO)
Paae 10

Permit No. NCS000303
SECTION B: SCHEDULE OF COMPLIANCE
The permittee shall comply with Final Limitations and Controls specified for stormwater
discharges in accordance with the following schedule:
The Stormwater Pollution Prevention Plan shall be developed and implemented prior to the
beginning of stormwater discharges from the operation of the industrial activity and be
updated thereafter on an annual basis. Secondary containment, as specified in Part I,
Section A, 1. b. 2. of this permit shall be accomplished prior to the beginning of discharges
from the operation of the industrial activity.
2. Permittee shall at all times provide the operation and maintenance necessary to operate the
permitted stormwater controls at optimum efficiency.
Page I I