NCG150026_Representative Outfall Status Initial Request_20250828

Representative Outfall Status Request
4) Detailed explanation about why the outfalls above should be granted Representative Status:
(Or,attach a letter or narrative to discuss this information.) For example,describe how activities and/or
materials are similar.
See attached narrative
5) Certification:
North Carolina General Statute 143-215.6 B(ij provides that:
Any person who knowingly makes any false statement,representation,or certification in any application,record,
report,plan,or other document filed or required to be maintained under this Article or a rule implementing this
Article;or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article;or who falsifies,tampers with,or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the[Environmental Management]
Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed
ten thousand dollars($10,000).
I hereby request Representative Outfall Status for my NPDES Permit. I understand that ALL outfalls are still
subject to the qualitative monitoring requirements of the permit, unless otherwise allowed by the permit
and regional office approval. i must notify DEQ in writing if any changes to the facility or its operations
take place after ROS is granted that may affect this status. If ROS no longer applies, I understand i must
resume monitoring of all outfalls as specified in my NPDES permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true,complete,and accurate.
Printed Name of Person Signing: F--�cL /�
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(Sig ature of Applicant)
— — --._..__ (Date Signed)
Please note: This application for Representative Outfall Status is subject to
1 j approval by the NCDEQ Regional Office. The Regional Office may inspect your
facility for compliance with the conditions of the permit prior to that approval.__—_--
Final Checklist for ROS Request
This application should include the following items;
ci This completed form.
❑ Letter or narrative elaborating on the reasons why specified outfalls should be granted representative
status, unless all information can be included in Question 4.
❑ Two(2)copies of a site map of the facility with the location of ail outfalls clearly marked, including the
drainage areas, industrial activities, and raw materials/finished products within each drainage area.
o Summary of results from monitoring conducted at the outfalls listed in Question 3.
o Any other supporting documentation.
SWU-ROS-2009 Page 2 of 3
Last revised 12/30/2009

Representative Outfall Status Request
Mail the entire package to:
NCDEQ DEMLR at the appropriate Regional Office (See map and
addresses below)
Notes
The submission of this document does not guarantee Representative Outfall Status(ROS)will be granted as
requested. Analytical monitoring as per your current permit must be continued,at all outfalls, until written
approval of this request is granted by DEQ. Non-compliance with analytical monitoring prior to this request
may prevent ROS approval. Specific circumstances will be considered by the Regional Office responsible for
review.
For questions, please contact the DEQ Regional Office for your area.
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Asheville Regional Office
2090 U.S. Highway 70
Swannanoa, NC 28778 Washington Regional Office
943 Washington Square Mall
Phone [phone] Washington, NC 27889
FAX [phone]
Phone [phone]
Fayetteville Regional Office FAX [phone]
Systel Building,
225 Green St., Suite 714 Wilmington Regional Office
Fayetteville, NC 28301-5094 127 Cardinal Drive Extension
Wilmington, NC 28405
Phone [phone]
FAX [phone] Phone [phone]
FAX [phone]
Mooresville Regional Office
610 East Center Ave. Winston-Salem Regional Office
Mooresville, NC 28115 585 Waughtown Street
Winston-Salem, NC 27107
Phone [phone] Phone [phone]
FAX [phone] Water Quality Main FAX [phone]
Raleigh Regional Office Central Office
1628 Mail Service Center 1612 Mail Service Center
Raleigh, NC 27699-1628 Raleigh, NC 27699-1612
Phone [phone] Phone [phone]
FAX [phone] FAX [phone]
Page 3 of 3
SWU-ROS-2009
Last revised 12/30/2009

Halifax-Northampton Regional Airport
Outfall and Drainage Area Descriptions
Stormwater runoff from the Airport drains to six drainage outfalls. These drainage outfails discharge into
Quankey Creek and an unnamed tributary of Marsh Swamp (see General Location Map and Site Map).
Outfall I
The majority of the runoff from areas supporting industrial activity at the Airport occurs on the west side of
the Airport in Drainage Area 1 (noted as DA-1 in Figure 2). Drainage Area 1 includes two sub-drainage
areas, DA-la and DA-1b. DA-la includes runoff from a portion of the parallel taxiway, as well as the
majority of the aircraft parking apron. This sub-drainage area also includes runoff from the fuel farm,
terminal building, vehicle parking lot, T-hangars, and conventional corporate hangars. Drainage Area 1a
also includes off-site run-on from adjacent farmland north and south of Gregory Farm Road. Runoff from
this area is collected through a system of grass lined drainage ditches, drop inlets, and drainage pipe.
Runoff from Drainage Area la flows south, into an extended dry detention basin (Basin 1). Basin 1
discharges through an outlet structure and pipe into ditch at Outfall I.
Sub-Drainage Area 1 b includes runoff from portions of the runway, parallel taxiway and several connector
taxiways. Runoff from the pavement and midfield areas is collected in a series of drop inlets and drainage
pipes. This pipe flows to the south end of the parallel taxiway, where it discharges into a ditch at Outfall I.
Runoff that is discharged at Outfall I enters an unnamed tributary of Marsh Swamp at the southwest end of
the Airport property. This tributary flows south from the Airport to Marsh Swamp. Marsh Swamp flows
south, eventually discharging to Beech Swamp, then Fishing Creek, and into the Tar River.
Outfall II (proposed representative of Outfalls III, IV,V,and VI)
Drainage Area 2 (DA-2) includes the remaining runoff from the aircraft parking apron and portions of the
runway and parallel taxiway. Runoff from these areas is collected through a system of grass lined drainage
ditches, drop inlets, and drainage pipe. Runoff from Drainage Area 2 flows to the north end of the Airport
and into an extended dry detention basin (Basin 2). Basin 2 discharges through an outlet structure and
pipe into a naturalized ditch at Outfall II. This ditch flows approximately 900 feet and discharges into
Quankey Creek. Quankey Creek flows east from the Airport and discharges into the Roanoke River.
The following sections describe the drainage areas to Outfalls III, IV, V, and VI. Similar to Outfall II, these
areas drain portions of the parallel taxiway, connector taxiways, runway, and grassed runway safety
overruns.
Outfall III
Drainage Area 3 (DA-3) includes runoff from a small portion of the runway and connector taxiway at the
very north end of Runway 20, as well as half of the grassed runway safety overrun. This runoff flows into
a small drainage swale on the west side of the runway safety overrun, where it flows to the north and
discharges at the end of the graded safety area, at Outfall III. The discharged runoff sheet flows
approximately 360 feet through a naturalized area before entering Quankey Creek.
Outfall IV
Drainage Area 4 (DA-4) includes runoff from a large portion of the runway, parallel taxiway, and several
connector taxiways. The runoff from the pavement and midfield areas is collected in a series of drop inlets

and drainage pipe. This pipe flows to the east side of the airport property and into an extended dry detention
basin (Basin 3). Basin 3 discharges through an outlet structure and pipe into a natural grassed ditch at
Outfall IV. This drainage ditch flows towards the northeast, eventually discharging into Quankey Creek.
Outfall V
Drainage Area 5 (DA-5) includes runoff from a portion of the runway, as well as the grassed runway safety
area and safety overrun. Runoff in this area sheet flows off of the pavement and through the grassed safety
area,where it is collected in a grassed drainage ditch on the east side of the Airport property. This grassed
ditch flows to the southern end of the runway, around the end of the safety overrun, where it discharges at
Outfall V, into an unnamed tributary of Marsh Swamp. Drainage Area 5 also includes a small area of off-
site run-on from adjacent forested property.
Outfall VI
Drainage Area 6 (DA-6) includes runoff from a small portion of the runway and connector taxiway at the
very south end of Runway 2, as well as half of the grassed runway safety overrun. This runoff flows into a
small drainage swale on the west side of the runway safety overrun, where it flows to the south and
discharges at the end of the graded safety area, at Outfall VI. The discharged runoff flows directly into the
unnamed tributary of Marsh Swamp.

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