08_NCS000559_SW-101_20220512

STANDARD PROCEDURE
Town of Clayton, NC
ENGINEERING DIVISION
SUBJECT
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SUPERCEDES
PREPARED BY
S. Locklear
APPROVED BY
J. Baird
STORMWATER CONVEYANCE
SYSTEM
Town Stormwater Engineer
Town Engineer
1.0
PURPOSE...........................................................................................................1
2.0
ORGANIZATIONS AFFECTED........................................................................1
3.0
DEFINITIONS....................................................................................................1
4.0
GENERAL..........................................................................................................2
5.0
RESPONSIBILITY.............................................................................................2
6.0
PROCEDURE FOR NON -HAZARDOUS MATERIALS SPILLS ......................3
7.0
PROCEDURE FOR HAZARDOUS MATERIALS SPILLS................................8
8.0
NOTIFICATION OF OTHER GOVERNMENT AGENCIES ..............................9
9.0
LIST OF CLEAN-UP COMPANIES.................................................................10
10.0
REVISION HISTORY.....................................................................10
1.0 PURPOSE
To establish the responsibilities and steps to be followed by Engineering Division
staff in the handling of emergencies involving hazardous materials and non-
hazardous materials which threaten to enter the stormwater conveyance system.
The Town Engineer of the Engineering Division provides overall direction of the
activities and Town staff referred to in this procedure, and may modify staff
assignments and response procedures as needed at the time of the emergency.
2.0 ORGANIZATIONS AFFECTED
Public Services Department, Engineering Division
3.0 DEFINITIONS
3.1 Hazardous Material - Any substance or waste in the form of a solid,
sludge, liquid, gas, or other form, which may pose a significant risk to
health and safety or property. The scope of hazardous materials
encompasses hazardous chemicals, hazardous substances, and hazardous
wastes. Hazardous materials include, but are not limited to: explosives,
flammable gases, toxic gases, compressed gases, flammable liquids,
combustible liquids, flammable solids, pyrophoric liquids, organic
peroxides, oxidizing materials, corrosive materials, toxic liquids,
radioactive materials, and cryogenic materials.
3.2 IDDE Coordinator Town Stormwater Engineer or other designee
3.3 Illicit Connection - Any unlawful connection which allows the discharge of
non-stormwater to the stormwater conveyance system or waters of the State
in violation of this chapter.

Town of Clavton. NC
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3.4 Illicit Discharge - Any unlawful disposal, placement, emptying, dumping,
spillage, leakage, pumping, pouring, emission, or other discharge of any
substance other than stormwater into a stormwater conveyance, the waters
of the State, or upon the land in such proximity to the same, such that the
substance is likely to reach a stormwater conveyance or the waters of the
State.
3.5 Stormwater - Any flow resulting from, and occurring during or following,
any form of natural precipitation.
3.6 Stormwater conveyance or stormwater conveyance system - Any feature,
natural or man-made, that collects and transports stormwater, including but
not limited to roads with drainage systems, streets, catch basins, curbs,
gutters, ditches, man-made and natural channels, pipes, culverts, and storm
drains, and any other natural or man-made feature or structure designed or
used for collecting or conveying stormwater.
3.7 Waters of the State - Surface waters within or flowing through the
boundaries of the State including the following: any intermittent or
perennial stream, river, creek, brook, swamp, lake, sound, tidal estuary, bay,
reservoir, wetland, or any other surface water or any portion thereof that is
mapped as solid or dashed blue lines on United States Department of the
Interior Geological Survey 7.5 minute series topographic maps. Treatment
systems, consisting of man-made bodies of water, which were not originally
created in waters of the State and which are not the result of impoundment
of waters of the State, are not waters of the State.
4.0 GENERAL
The initial and primary responsibility for the protection of health, safety, and
property in the event of a hazardous materials emergency in the Town of Clayton
town limits and ETJ rests with the Town. The key to effectively managing a spill
site is coordination with other agencies and proper resource utilization.
5.0 RESPONSIBILITY
5.1 The Fire Department is the agency primarily responsible for assessing the
degree of hazard in a hazardous materials emergency and for implementing
appropriate emergency action for large scale spills. The on scene Incident
Commander is responsible for the overall direction of the response to a
hazardous materials incident, unless that authority is assumed by the Public
Services Director.
5.2 The Engineering Division of the Public Services Department is responsible
for assessing the degree of containment of the spill and the possibility of the
materials entering the stormwater conveyance system.

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5.2.1 The Engineering Division of the Public Services Department is
typically the second or third responder on large scale spills and the
first responder on minor spills.
5.2.2 The primary responder for Illicit Discharge Detection and
Elimination from the Engineering Division will be the IDDE
Coordinator. If the IDDE Coordinator is unavailable, a Construction
Project Administrator from the Engineering Division shall be the
primary responder. If all Construction Project Administrators are
unavailable, the primary responder shall be the Town Engineer.
5.2.3 The primary responsibility for the Town Engineer is to provide
guidance, as necessary, to the IDDE Coordinator serving as the
primary responder for the Engineering Division, in addition to
maintaining an office presence to answer resident calls and inquiries
from the media about the situation.
6.0 PROCEDURE FOR NON -HAZARDOUS MATERIALS SPILLS
6.1 Initial Dispatch
After the Engineering Division has been notified, the primary responder
will notify their supervisor of the situation and immediately go to
investigate the scene.
6.2 Initial Response Activities
6.2.1 Upon arrival at the scene, the primary responder will assess the
situation and determine if an illicit discharge has occurred.
a. If no violation has occurred, the primary responder will
return to the Engineering Division office and submit the
appropriate documentation.
b. If a violation of the Illicit Discharge Ordinance is observed,
the primary responder will determine if involvement of the
Fire Department and/or HAZMAT team is necessary.
C. If the primary responder determines that assistance from the
Fire Department and/or HAZMAT team is necessary, the
primary responder will notify the Emergency
Communications Center (Call 9-1-1) and will follow
procedures outlined in Section 7.0 PROCEDURE FOR
HAZARDOUS MATERIALS SPILLS.
6.2.2 For less severe incidents, if additional staff support is needed the
primary responder will contact their supervisor to request additional
staff be sent to the scene.

Town of Clavton. NC
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6.3 Determination of the Responsible Party
6.3.1 The primary responder will interview witnesses to determine the
responsible party for the spill.
6.3.2 If a responsible party is found, the primary responder will ensure
that the responsible party takes action to clean up the contained spill.
The responsible party must inform the primary responder of the plan
of action to clean up the contained spill; the primary responder will
determine if the plan of action is adequate to properly clean the area.
To ensure that spill cleanup is completed either the primary
responder will be present during the cleanup, or an agreement will
be made between the responsible party and the primary responder
that the responsible party will call the primary responder and request
a site inspection after the cleanup is finished.
6.3.3 If a responsible party is not found, the primary responder will
determine the property owner. The primary responder shall notify
the Town Engineer who will assist in determining the next action.
a. The primary responder may request the presence of the
Town Engineer at the site to assist with facilitating the clean-
up operation.
b. The IDDE Coordinator will consult with the Public Services
Department to determine if staff are able to perform the
clean-up operation.
C. If the Public Services Department cannot perform the clean-
up operation, the IDDE Coordinator will determine whether
or not to hire a professional environmental clean-up
company, after consulting with the Town Engineer. Refer to
Section 9.1 for a list of available companies.
6.4 Spill Containment
6.4.1 The primary responder will ensure the spill is contained by the
responsible party. If no responsible party can be determined or if
the responsible party has inadequate equipment to contain the spill,
the primary responder will contain the spill.
6.4.2 Basic equipment recommended for containment of small (5 gallons
or less) non -hazardous spills:
0 Broom
0 Shovel

Town of Clavton. NC
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• Trash bags
• Bags of loose absorbent material'
• Boom socks
6.4.3 Location of basic spill containment equipment:
a. Broom, shovel, and trash bags are located in the storage shed
and in the vehicles operated by the Water Quality Section,
currently vehicle # 3776.
b. Absorbent materials are located in the storage shed and the
vehicles operated by the Water Quality Section, currently
vehicle # 3776.
c. Spare keys for vehicle # 3776 are located in Administrative
Assistant's office.
6.4.4 Procedure for Containment and Clean-up of Non -Hazardous Spills:
a. Determine whether the spill is flowing toward or into the storm
drainage system through a drop inlet, catch basin, ditch, or other
conveyance system.
b. If a spill has the possibility of entering a storm inlet, remove the
plastic covering of the boom sock or equivalent and place the
boom sock around the stormwater inlet entrance to protect the
inlet from contaminants.
(1) If the stormwater inlet is the NCDOT Standard Catch
Basin; the boom sock shall be placed around the grate in
front of the catch basin. It may take two or more boom
socks to go around grate; overlap the boom socks with a ten
(10) to twelve (12) inch overlap. See Figure 1.
(2) If the stormwater inlet is a Town of Clayton Standard Catch
Basin; the boom sock shall be placed in front of the throat
opening of the catch basin. It may take two or more boom
socks to protect the opening; overlap the boom socks with a
ten (10) to twelve (12) inch overlap. See Figure 2.
(3) If the stormwater inlet is a Drop Inlet; the boom sock shall
be placed around the grate. It may take two or more boom
1 Stormwater Utility is currently using Oil Dri Premium Absorbent products.

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socks to go around grate; overlap the boom socks with a ten
(10) to twelve (12) inch overlap. See Figure 3.
(4) If the stormwater inlet is a Flared End Section or Open
Pipe; the boom sock shall be placed in a semi -circle in front
of the opening. It may take more one boom sock to protect
the pipe opening; overlap the boom socks with a ten (10) to
twelve (12) inch overlap. See Figure 4.
A
Figure 1: Boom socks protecting NCDOT
Standard Catch Basin.
Figure 3: Boom socks protecting Drop
Inlet.
Figure 2. Boom socks protecting Town of
Clayton Standard Catch Basin.
Figure 4. Boom socks protecting Flared
End Section.
Note: If spill is flowing under boom sock, pour loose absorbent or equivalent on the
ground in front of boom sock to prevent spill from entering the stormwater conveyance
system.
c. If a spill has already entered a storm inlet or other feature of the
stormwater conveyance system, then follow the above
procedures to contain the spill and prevent further contaminants
from entering the stormwater conveyance system.

Town of Clavton. NC
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d. After the storm inlet(s) is (are) protected, take at least one bag
of loose absorbent or equivalent and spread the absorbent over
the spill area. More than one bag may be necessary to cover the
entire spill area.
Proper application of the loose absorbent or equivalent.
i. Cut an opening into one corner of the bag.
ii. Tilt the bag and shake the absorbent lightly over the
entire spill area.
iii. Use a broom to spread and thoroughly rub absorbent or
equivalent into the spill material.
iv. Repeat steps above until spill material is fully absorbed.
e. Staff must ensure that the site is cleaned up after containing the
spill. Use a flat headed shovel to transfer the used absorbent
material into five (5) gallon bucket for disposal.
f. After all the used absorbent materials has been placed in the five
(5) gallon bucket, place non -hazardous label on five (5) gallon
bucket and have material properly disposed of by approved
contractor.
6.4.5 If the spill cannot be contained, the primary responder will notify
the Emergency Communications Center (Call 9-1-1) and follow
procedures outlined in Section 7.0 PROCEDURE FOR
HAZARDOUS MATERIALS SPILLS.
6.5 Water Quality Sampling of Unknown Material
6.5.1 If the material is unknown, and it is determined to be necessary by
the IDDE Coordinator, a sample should be taken for laboratory
analysis. Coordination with the contracted laboratory prior to
sampling will be necessary.
a. Ice should be added to the coolers used to transport the samples
from the field to the laboratory.
b. Upon completion of the sampling, the contracted laboratory
should be notified that spill samples will be delivered.

Town of Clavton. NC
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6.6 Duties for Clean -Up Activities
After it is determined who will be performing the clean-up activities from
the spill, the primary responder will serve in a facilitator role to ensure that
the clean-up activities have been completed to the satisfaction of the IDDE
Coordinator. The Town Engineer may also serve in this supervisory role.
• Clean -Up activities may include removing contaminated water from
a stream and removing contaminated soil from a stream bank, ditch,
or detention basin.
6.7 Completion of Spill Clean -Up
Upon the final inspection performed by the primary responder confirming
the clean-up work has been completed, the primary responder will work in
cooperation with their supervisor on future communications with the Town
Attorney's Office, should legal actions pursue.
6.8 Follow -Up Water Quality Sampling
The IDDE Coordinator and Town Engineer will determine if a follow-up
sampling plan will be implemented at the site of the spill. Several factors
will be used in determining the plan for follow-up sampling, including, but
not limited to:
a. Pollutants present in the spill;
b. Pollutant concentration of the spill;
C. Duration of the spill; and
d. Location of the spill.
7.0 PROCEDURE FOR HAZARDOUS MATERIALS SPILLS
All reports of hazardous materials spills, accidents, fires and other emergencies will
be directed to the Emergency Communications Center.
7.1 Role of Engineering Division
7.1.1 During a hazardous materials emergency, the Fire Department
and/or HAZMAT team will take the lead on containment of the
spill. It is not the responsibility of the Fire Department and/or
HAZMAT team to clean up the spill or contaminated area.
7.1.2 Engineering Division staff will cooperate with other agencies, such
as Johnston County and the North Carolina Department of
Environment and Natural Resources, to determine the best method
of containment and resulting clean-up efforts.

Town of Clavton. NC
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7.1.3 The role of the IDDE Coordinator from the Engineering Division
will strictly be a facilitator role to ensure that the spill is contained to
ensure that no materials enter the stormwater conveyance system, to
the maximum extent practicable.
7.1.4 If other Town departments will be affected by the spill, Engineering
Division staff will ensure that the appropriate departments are
notified of the situation. Staff members located at the scene may
call support staff in the office to assist with this responsibility.
8.0 NOTIFICATION OF OTHER GOVERNMENT AGENCIES
The North Carolina Department of Environment and Natural Resources, Division
of Water Quality (DWQ) will be notified of situations which will significantly
impact Waters of the State. The responsible party must notify DWQ of the
violation.
The Environmental Regional Supervisor requests that Engineering Division Staff
personally notify DWQ of violations, in addition to notification by the responsible party.
8.1 Contact List (as of July 1, 2020)
Town of Clayton Fire Department ....................Office: [phone] or Emergency 911
Town of Clayton Police Department .................Office: [phone] or Emergency 911
Town of Clayton Parks and Recreation Department ...................... Office: [phone]
Town of Clayton Public Utilities Division ...................................... Office: [phone]
Town of Clayton Public Services Department.............................Office: [phone]
North Carolina Department of Environmental Quality
Division of Water Resources
Mainline........................................................................................Office: [phone]
Division of Waste Management (Underground Tank Section)
Mainline........................................................................................Office: [phone]
Johnston County Environmental Services ...................................... Office: [phone]
Cory Larsen..................................................................................Mobile: [phone]
Emergency Pager...................................................................................... [phone]

Town of Clayton, NC
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9.0 LIST OF CLEAN-UP COMPANIES
When the responsible party cannot be determined and the Town of Clayton Public
Services Department cannot assist in the clean-up, a company shall be hired to
clean-up the spill and any contaminated areas. Clean -Up activities may include
removing contaminated water from a stream and removing contaminated soil from
a stream bank, ditch, or detention basin.
Environmental Clean-up Contractor Contact List
Highlands Environmental Solutions, Inc .......................................... [phone]
8401-D Falls of Neuse Road
Raleigh, NC 27615
24hr Emergency Line 1-855-437-3278
First Call Environmental
7305 Vanclaybon Road
Apex, NC 27523
24hr Emergency Line 1-800-646-1290
Environmental Products & Service of Vermont, Inc ......................... [phone]
405 South Rogers Lane
Raleigh, NC 27610
24hr Emergency Line 1-800-676-3550
Chase Environmental......................................................... [phone]
P.O Box 477
Erwin, NC 28339
24hr Emergency Line 1-877-752-4273
10.0 REVISION HISTORY