WQ0045830_Application_20240918

TiMCADAMS
August 28, 2024
NCDEQ Raleigh Regional Office
Water Quality Section
3800 Barrett Drive
Raleigh, North Carolina 27609
Re: United Therapeutics Warp 10
Fast Track Application for Gravity Sewer - Cover Letter
U NT23001
To Whom it May Concern,
FAST TRACK APPLICATION > UNT23001
We are proposing a privately owned gravity sewer system as part of the United Therapeutic Warp 10 development.
The source of flow will include laboratory, manufacturing, and domestic uses, and the division of flow and pipe
quantities is provided below. This project does not require 401 or 404 permitting. A list of items included in the
submittal package is provided below.
Summary of Flows
Industrial = 13,711 GPD
Domestic = 6,000 GPD
Mechanical Usage - 13,232 GPD
Estimated Total Flow = 32,943 GPD
Summary of Gravity Sewer Quantities
8" Ductile Iron Pipe = 842 LF
Summary of Flows
• Application Fee
• Fast Track Application (FTA 10-23)
• Corporate Certification
• Signing Authority Letter
• Flow Breakdown Document
• Flow Tracking/Acceptance Form (FTSE 10-23)
creating experiences through experience 2905 Meridian Parkway, Durham, NC 27713 / 919. 361. 5000

TiMCADAMS
FAST TRACK APPLICATION > UNT23001
Thank you for taking the time to review our applications. If you have any questions please feel free to contact me at
919-287-0727 and [e-mail].
Sincerely,
MCADAMS
.�
athan Bal s, PE
Senior Technical Manager
creating experiences through experience 2905 Meridian Parkway, Durham, NC 27713 / 919. 361. 5000

State of North Carolina
Department of Environmental Quality
DWR Division of Water Resources
FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
Division of Water Resources INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION
This application is for sewer extensions involving gravity sewers, pump stations and force mains, or any combination that has been
certified by a professional engineer and the applicant that the project meets the requirements of 15A NCAC 02T and the Division's
Minimum Design Criteria (Gravity Sewer & Pump Stations/Force Mains) and that plans, specifications and supporting documents
have been prepared in accordance with 15A NCAC 02T, 15A NCAC 02T .0300, Division policies, and good engineering practices.
While no upfront engineering design documents are required for submittal, in accordance with 15A NCAC 02T .0305(b), design
documents must be prepared prior to submittal of a fast track permit application to the Division. This would include plans, design
calculations, and project specifications referenced in 15A NCAC 02T .0305 and the applicable minimum design criteria. These
documents shall be immediately available upon request by the Division.
Projects that are deemed permitted (do not require a permit from the Division) are explained in 15A NCAC 02T.0303.
Projects not eligible for review via the fast track process (must be submitted for full technical review):
➢ Projects that do not meet any part of the minimum design criteria (MDC) documents;
➢ Projects that involve more than one variance from the requirements of 15A NCAC 02T;
➢ Pressure sewer systems utilizing simplex septic tank -effluent pumps (STEPS) or simplex grinder pumps;
➢ Simplex STEP or simplex grinder pumps connecting to pressurized systems (e.g. force mains);
➢ Vacuum sewer systems.
General — When submitting an application, please use the following instructions as a checklist in order to ensure all required items are
submitted. Adherence to these instructions and checking the provided boxes will help produce a quicker review time and reduce the
amount of requested additional information. Failure to submit all required items will necessitate additional processing and review
time, and may result in return of the application. Unless otherwise noted, the Applicant shall submit one original and one copy of
the application and supporting documentation.
A. One Original and One Copy (second copy may be digital) of Application and Supporting Documents
® Required unless otherwise noted. Signatures on original must be "wet ink" or secure digital signatures.
Please do not submit engineering design plans with the application unless specifically requested.
B. Cover Letter/Narrative Description (Required for All Application Packages):
® List all items included in the application package, as well as a brief description of the requested permitting action.
➢ Be specific as to the system type, number of homes served, flow allocation required, etc.
➢ Include the permit number/status of any other required sewer permits (downstream/upstream)
➢ If necessary for clarity, include attachments to the application form.
➢ If the project is funded by American Rescue Plan Act (ARPA) funds, please include the ARPA project number in the cover
letter and in parentheses under Project Name (Section 11.1. of the application).
C. Application Fee (All New and Modification Application Packages):
® Submit a check or money order in the amount of $600.00, dated no more than 90 days prior to application submittal.
➢ Payable to North Carolina Department of Environmental Quality (NCDEQ)
D. Fast Track Application (Required for All Application Packages, Form FTA 10-23):
® Submit the completed and appropriately executed application.
➢ If necessary for clarity or due to space restrictions, attachments to the application may be made.
® If the Applicant Type in Item I.2 is a corporation or company, provide documentation it is registered for business with the
North Carolina Secretary of State.
❑ If the Applicant Type in Item I.2 is a partnership or d/b/a, enclose a copy of the certificate filed with the Register of Deeds in
the county of business.
® The Project Name in Item 11.1 shall be consistent with the project name on the flow acceptance letters, agreements, etc.
® The Professional Engineer's Certification on Page 5 of the application shall be signed, sealed and dated by a North Carolina
licensed Professional Engineer.
INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Page 1 of 3

® The Applicant's Certification on Page 5 of the application shall be signed in accordance with 15A NCAC 02T .0106(b). Per
15A NCAC 02T .0106(c), an alternate person may be designated as the signing official if a delegation letter is provided from
a person who meets the criteria in 15A NCAC 02T .0106(b).
E. Flow Tracking/Acceptance Form (Form: FTSE 10-23) (If Applicable):
® Submit the completed and executed FTSE form from the owners of the downstream sewers and treatment facility.
➢ Multiple forms maybe required where the downstream sewer owner and wastewater treatment facility are different.
➢ The flow acceptance indicated in form FTSE must not expire prior to permit issuance and must be dated less than one year
prior to the application date.
➢ Submittal of this application and form FTSE indicates that owner has adequate capacity and will not violate G.S. 143-215.67(a).
➢ Intergovernmental agreements or other contracts will not be accepted in lieu of a project -specific FTSE.
F. Site Maps (All Application Packages):
® Submit an 8.5-inch x 11-inch color copy of a USGS Topographic Map of sufficient scale to identify the entire project area,
including the closest surface waters.
➢ General location of the project components (gravity sewer, pump stations, & force main)
➢ Downstream connection points and permit number (if known) for the receiving sewer
® Include an aerial location map showing general project area (such as street names or latitude/longitude) so that Division staff
can easily locate it in the field.
G. Existing Permit (Application Packages for Modifications to an Existing Permit):
❑ Submit a copy of the most recently issued existing permit.
❑ Include a descriptive and clear narrative identifying the previously permitted items to remain in the permit, items to be
added, and/or items to be modified (the application form itself should include only include items to be added/modified). The
narrative should also include whether any previously permitted items have been certified.
❑ The narrative should clearly identify the requested permitting action and accurately describe the sewers to be listed in
the final permit.
H. Power Reliability Plan (Required if portable reliability option utilized for Pump Station):
❑ Per 15A NCAC 02T .0305(h)(1), submit documentation of power reliability for pumping stations.
➢ This alternative is only available for average daily flows less than 15,000 gallons per day
➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant and is compatible with
the station. The Division will accept a letter signed by the applicant (see 15A NCAC 02T .0106(b)) or proposed contractor,
stating that "the portable power generation unit or portable, independently -powered pumping units, associated appurtenances
and personnel are available for distribution and operation of this pump station."
➢ If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations'
storage capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall
be provided in the case of a multiple station power outage. (Required at time of certification)
I. Certificate of Public Convenience and Necessity (All Application Packages for Privately -Owned Public Utilities):
❑ Per 15A NCAC 02T .0115(a)(1) provide the Certificate of Public Convenience and Necessity from the North Carolina Utilities
Commission demonstrating the Applicant is authorized to hold the utility franchise for the area to be served by the sewer
extension, or
❑ Provide a letter from the North Carolina Utilities Commission's Water and Sewer Division Public Staff stating an application
for a franchise has been received and that the service area is contiguous to an existing franchised area or that franchise approval
is expected.
J. Operational Agreements (Applications from HOA/POA and Developers for lots to be sold):
❑ Home/Property Owners' Associations
❑ Per 15A NCAC 02T .0115(c), submit the properly executed Operational Agreement (FORM: HOA).
❑ Per 15A NCAC 02T .0115(c), submit a copy of the Articles of Incorporation, Declarations and By-laws.
❑ Developers of lots to be sold
❑ Per 15A NCAC 02T .0115(b), submit the properly executed Operational Agreement (FORM: DEV).
For more information, visit the Division's collection systems website
INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Page 2 of 3

THE COMPLETED APPLICATION PACKAGE INCLDING ALL SUPPORTING INFORMATION AND
MATERIALS, SHOULD BE SENT TO THE APPROPRIATE REGIONAL OFFICE:
REGIONAL OFFICE
ADDRESS
COUNTIES SERVED
Asheville Regional Office
2090 US Highway 70
Avery, Buncombe, Burke, Caldwell, Cherokee,
Water Quality Section
Swannanoa, North Carolina 28778-8211
Clay, Graham, Haywood, Henderson, Jackson,
[phone]
Macon, Madison, McDowell, Mitchell, Polk,
[phone] Fax
Rutherford, Swain, Transylvania, Yancey
Favetteville Regional Office
225 Green Street Suite 714
Anson, Bladen, Cumberland, Harnett, Hoke,
Water Quality Section
Fayetteville, North Carolina 28301-5095
Montgomery, Moore, Robeson, Richmond,
[phone]
Sampson, Scotland
[phone] Fax
Mooresville Regional Office
610 E. Center Avenue
Alexander, Cabarrus, Catawba, Cleveland,
Water Quality Section
Mooresville, North Carolina 28115
Gaston, Iredell, Lincoln, Mecklenburg, Rowan,
[phone]
Stanly, Union
[phone] Fax
Raleigh Regional Office
3800 Barrett Drive
Chatham, Durham, Edgecombe, Franklin,
Water Quality Section
Raleigh, North Carolina 27609
Granville, Halifax, Johnston, Lee, Nash,
[phone]
Northampton, Orange, Person, Vance, Wake,
[phone] Fax
Warren, Wilson
Washington Regional Office
943 Washington Square Mall
Beaufort, Bertie, Camden, Chowan, Craven,
Water Quality Section
Washington, North Carolina 27889
Currituck, Dare, Gates, Greene, Hertford, Hyde,
[phone]
Jones, Lenoir, Martin, Pamlico, Pasquotank,
[phone] Fax
Perquimans, Pitt, Tyrrell, Washington, Wayne
Wilmington Regional Office
127 Cardinal Drive Extension
Brunswick, Carteret, Columbus, Duplin, New
Water Quality Section
Wilmington, North Carolina 28405
Hanover, Onslow, Pender
[phone]
[phone] Fax
Winston-Salem Regional Office
450 W. Hanes Mill Road
Alamance, Alleghany, Ashe, Caswell, Davidson,
Water Quality Section
Suite 300
Davie, Forsyth, Guilford, Rockingham, Randolph,
Winston-Salem, North Carolina 27105
Stokes, Surry, Watauga, Wilkes, Yadkin
[phone]
[phone] Fax
INSTRUCTIONS FOR FORM: FTA 10-23 & SUPPORTING DOCUMENTATION Page 3 of 3

NC inept of Envirordacntai Quality State of North Carolina
Department of Environmental Quality
ADENEW�WR Division of Water Resources
IV IV
SEP 18 2024 FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
Division of Water Resources FTA 10-23 & SUPPORTING DOCUMENTATION
Raleigb Re onal Office W Q 0 0� 5 8 3 0
Application Num er: (to be completed by DWR)
All items must be completed or the application will be returned
I. APPLICANT INFORMATION:
1. Applicant's name: United Therapeutics (company, municipality, HOA, utility, etc.)
2. Applicant type: ❑ Individual ® Corporation ❑ General Partnership ❑ Privately -Owned Public Utility
❑ Federal ❑ State/County ❑ Municipal ❑ Other
3. Signature authority's name: Thomas Kaufman per 15A NCAC 02T ,0106(b)
Title: Associate Vice President
4. Applicant's mailing address: PO Box 14186
City: RTP State: NC Zip: 27709-
5. Applicant's contact information:
Phone number: 240) 281-3808 Email Address: tkaufinanaunither.com
II. PROJECT INFORMATION:
1. Project name: United Therapeutics Warp 10
2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project ❑ ARPA funded
If a modification, provide the existing permit number: WQ00 and issued date: ,
For modifications, also attach a detailed narrative description as described in Item G of the checklist.
If new construction, but part of a master plan, provide the existing permit number: WQ00
3. County where project is located: Durham
4. Approximate Coordinates (Decimal Degrees): Latitude: 35.9086° Longitude:-78.8758"
5. Parcel ID (if applicable): 233422 (or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
1. Professional Engineer: Z. Nathan Bales License Number: 044862
Firm: The John R. McAdams Company
Mailing address: 621 Hillsborough St. Suite 500
City: Raleigh State: NC Zip: 27603-
Phone number: 919) 287-0727 Email Address: balesCa,mcadamsco.com
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: Triangle Wastewater Treatment Plant Permit Number: NCO026051
Owner Name: Durham County
V. RECEIVING DOWNSTREAM SEWER INFORMATION:
1. Permit Number(s): WQ Unknown
2. Downstream (Receiving) Sewer Information: 8 inch ® Gravity ❑ Force Main
3. System Wide Collection System Permit Number(s) (if applicable): WQCS00038
Owner Name(s): Durham County
FORM: FTA 10-23 Pagel of 5

DWR
Division of Water Resources
Application Number:
State of North Carolina
Department of Environmental Quality
Division of Water Resources
FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
FTA 10-23 & SUPPORTING DOCUMENTATION
(to be completed by DWR)
All items must be completed or the application will be returned
I. APPLICANT INFORMATION:
1. Applicant's name: United Therapeutics (company, municipality, HOA, utility, etc.)
2. Applicant type: ❑ Individual ® Corporation ❑ General Partnership ❑ Privately -Owned Public Utility
❑ Federal ❑ State/County ❑ Municipal ❑ Other
3. Signature authority's name: Thomas Kaufman per 15A NCAC 02T .0106(b)
Title: Associate Vice President
4. Applicant's mailing address: PO Box 14186
City: RTP State: NC Zip: 27709-
5. Applicant's contact information:
Phone number: [phone] Email Address: tkaufinan(a)unither.com
II. PROJECT INFORMATION:
1. Project name: United Therapeutics Warp 10
2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project ❑ ARPA funded
If a modification, provide the existing permit number: WQ00 and issued date: ,
For modifications, also attach a detailed narrative description as described in Item G of the checklist.
If new construction, but part of a master plan, provide the existing permit number: WQ00
3. County where project is located: Durham
4. Approximate Coordinates (Decimal Degrees): Latitude: 35.9086' Longitude:-78.8758'
5. Parcel ID (if applicable): 233422 (or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
1. Professional Engineer: Z. Nathan Bales License Number: 044862
Firm: The John R. McAdams Company
Mailing address: 621 Hillsborough St, Suite 500
City: Raleigh State: NC Zip: 27603-
Phone number: [phone] Email Address: bales(a)mcadamsco.com
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: Triangle Wastewater Treatment Plant Permit Number: NCO026051
Owner Name: Durham County
V. RECEIVING DOWNSTREAM SEWER INFORMATION:
1. Permit Number(s): WQ Unknown
2. Downstream (Receiving) Sewer Information: 8 inch ® Gravity ❑ Force Main
3. System Wide Collection System Permit Number(s) (if applicable): WQCS00038
Owner Name(s): Durham County
FORM: FTA 10-23 Pagel of 5

VI. GENERAL REQUIREMENTS
1. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been attached?
❑ Yes ❑ No ® N/A
2. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been attached?
❑ Yes ❑ No ® N/A
3. If the Applicant is a Home/Property Owners' Association, has an HOA/POA Operational Agreement (FORM: HOA) and
supplementary documentation as required by 15A NCAC 02T.0I 15(c) been attached?
❑ Yes ❑ No ® N/A
4. Origin of wastewater: (check all that apply):
❑ Residential (Individually Owned) ❑ Retail (stores, centers, malls) ❑ Car Wash
❑ Residential (Leased) ❑ Retail with food preparation/service ❑ Hotel and/or Motels
❑ School / preschool / day care ❑ Medical / dental / veterinary facilities ❑ Swimming Pool/Clubhouse
❑ Food and drink facilities ❑ Church ❑ Swimming Pool/Filter Backwash
® Businesses / offices / factories ❑ Nursing Home ❑ Other (Explain in Attachment)
5. Nature of wastewater: 41.6 % Domestic 0_0 % Commercial 58.4 % Industrial (See 15A NCAC 02T .0103(20))
If Industrial, is there a Pretreatment Program in effect? ® Yes ❑ No
6. Hasa flow reduction been approved under 15A NCAC 02T .0114(f)? ❑ Yes ®No
➢ If Yes, provide a copy of flow reduction approval letter with this application
7. Summarize wastewater generated by project:
Establishment Type (see 02T.0114(f))
Daily Design Flow e,b
No. of Units
Flow
Industrial (see attached calculations)
gal/
13,711 GPD
Domestic
25 gal/day/person
240
6,000 GPD
Mech. Usage (see attached calculations)
gal/
13,232 GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
32,943 GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2) for caveats to wastewater design flow rates (i.e. proposed unknown
non-residential development uses; public access facilities located near high public use areas; and residential property
located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined in G.S. 42A-4).
b Per 15A NCAC 02T .0114(c), design flow rates for establishments not identified [in table 15A NCAC 02T.01141 shall be
determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data.
8. Wastewater generated by project: 32,943 GPD (per 15A NCAC 02T .0114 and G.S. 143-215.1)
➢ Do not include future flows or previously permitted allocations
If permitted flow is zero, please indicate why:
❑ Pump Station/Force Main or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line.
Please provide supplementary information indicating the approximate timeframe for permitting upstream sewers with flow.
❑ Flow has already been allocated in Permit Number: Issuance Date:
❑ Rehabilitation or replacement of existing sewers with no new flow expected
❑ Other (Explain):
FORM: FTA l 0-23 Page 2 of 5

V11. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewers):
1. Summarize gravity sewer to be permitted:
Size (inches) Length (feet) Material
8" 842 DIP
➢ Section II & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria
➢ Section III contains information related to minimum slopes for gravity sewer(s)
➢ Oversizing lines to meet minimum slope requirements is not allowed and a violation of the MDC
VIII. PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .0305 & MDC (Pump Stations/Force Mains):
PROVIDE A SEPARATE COPY OF THIS PAGE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT
1. Pump station number or name:
2. Approximate Coordinates (Decimal Degrees): Latitude: 0Longitude: - °
3. Total number of pumps at the pump station:
3. Design flow of the pump station: millions gallons per day (firm capacity)
➢ This should reflect the total GPM for the pump station with the largest pump out of service.
4. Operational point(s) per pump(s): gallons per minute (GPM) at feet total dynamic head (TDH)
5. Summarize the force main to be permitted (for this Pump Station):
Size (inches) Length (feet) Material
If any portion of the force main is less than 4-inches in diameter, please identify the method of solids reduction per
MDCPSFM Section 2.01C.l.b. ❑ Grinder Pump ❑ Mechanical Bar Screen ❑ Other (please specify)
6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1):
❑ Standby power source or ❑ Standby pump
➢ Must have automatic activation and telemetry - 15A NCAC 02T.0305(h)(1)(B).*
➢ Required for all pump stations with an average daily flow greater than or equal to 15,000 gallons per day
➢ Must be permanent to facility and may not be portable
Or if the pump station has an average daily flow less than 15,000 gallons per day 15A NCACO2T.0305(h)(1)(C):
❑ Portable power source with manual activation, quick -connection receptacle and telemetry -
or
❑ Portable pumping unit with plugged emergency pump connection and telemetry:
➢ Include documentation that the portable source is owned or contracted by the applicant and is compatible with the station.
➢ If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations' storage
capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall be provided
as part of this permit application in the case of a multiple station power outage.
FORM: FTA 10-23 Page 3 of 5

IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(f)):
1. Does the project comply with all separations/alternatives found in 15A NCAC 02T.0305(f) & (g,)? ® Yes ❑ No
15A NCAC 02T.0305 contains minimum separations that shall be provided for sewers stems:
Setback Parameter*
Separation Required
Storm sewers and other utilities not listed below (vertical)
18 inches
2Water mains (vertical - water over sewer preferred, including in benched trenches)
18 inches
2Water mains (horizontal)
10 feet
Reclaimed water lines (vertical - reclaimed over sewer)
18 inches
Reclaimed water lines (horizontal - reclaimed over sewer)
2 feet
**Any private or public water supply source, including any wells, WS-I waters of Class I or
Class II impounded reservoirs used as a source of drinking water, and associated wetlands.
100 feet
**Waters classified WS (except WS-I or WS-V), B, SA, ORW, HQW, or SB from normal
high water (or tide elevation) and wetlands associated with these waters (see item IX.2)
50 feet
**Any other stream, lake, impoundment, or ground water lowering and surface drainage
ditches, as well as wetlands associated with these waters or classified as WL.
10 feet
Any building foundation (horizontal)
5 feet
Any basement (horizontal)
10 feet
Top slope of embankment or cuts of 2 feet or more vertical height
10 feet
Drainage systems and interceptor drains
5 feet
Any swimming pools
10 feet
Final earth grade (vertical)
36 inches
➢ If noncompliance with 02T.0305(f) or (g), see Section X.1 of this application
*15A NCAC 02T.0305(g) contains alternatives where separations in 02T.0305(f) cannot be achieved. Please check "yes"
above if these alternatives are used and provide narrative information to explain.
**Stream classifications can be identified using the Division's NC Surface Water Classifications webpage
2. Does this project comply with the minimum separation requirements for water mains? ® Yes ❑ No ❑ N/A
➢ If no, please refer to 15A NCAC 18C.0906(f) for documentation requirements and submit a separate document,
signed/sealed by an NC licensed PE, verifying the criteria outlined in that Rule.
3. Does the project comply with separation requirements for wetlands? ❑ Yes ❑ No ® N/A
➢ Please provide supplementary information identifying the areas of non-conformance.
➢ See the Division's draft separation requirements for situations where separation cannot be met.
➢ No variance is required if the alternative design criteria specified is utilized in design and construction.
Jordan Lake
4. Is the project located in a river basin subject to any State buffer rules? ® Yes Basin name: Watershed ❑ No
If yes, does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ® Yes ❑ No
➢ This includes Trout Buffered Streams per 15A NCAC 2B.0202
5. Does the project require coverage/authorization under a 404 Nationwide/individual permits ❑ Yes ® No
or 401 Water Quality Certifications?
➢ Please provide the permit number/permitting status in the cover letter if coverage/authorization is required.
6. Does project comply with 15A NCAC 02T.0105(c)(6) (additional permits/certifications)? ® Yes ❑ No
Per 15A NCAC 02T.0105(c)(6), directly related environmental permits or certification applications must be being prepared,
have been applied for, or have been obtained. Issuance of this permit is contingent on issuance of dependent permits (erosion
and sedimentation control plans, stormwater management plans, etc.).
7. Does this project include any sewer collection lines that are deemed "high -priority?" ❑ Yes ® No
Per 15A NCAC 02T.0402, "high -priority sewer" means any aerial sewer, sewer contacting surface waters,
siphon, or sewers positioned parallel to streambanks that are subject to erosion that undermines or deteriorates the sewer.
Siphons and sewers suspended through interference/conflict boxes require a variance approval.
➢ If yes, include an attachment with details for each line, including type (aerial line, size, material, and location).
High priority lines shall be inspected by the permittee or its representative at least once every six -months and
inspections documented per 15A NCAC 02T.0403(a)(5) or the permittee's individual System -Wide Collection permit.
FORM: FTA 10-23 Page 4 of 5

X. CERTIFICATIONS:
1. Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Pump Stations
and Force Mains (latest version), and the Gravity Sewer Minimum Design Criteria (latest version) as applicable?
® Yes ❑ No
If no, for projects requiring a single variance, complete and submit the Variance/Alternative Design Request application
(VADC 10-14) and supporting documents for review to the Central Office. Approval of the request will be issued
concurrently with the approval of the permit, and proiects requiring a variance approval may be subiect to longer
review times. For proiects requiring two or more variances or where the variance is determined by the Division to be a
significant portion of the proiect, the full technical review is required.
2. Professional Engineer's Certification:
I, , attest that this application for
(Professional Engineer's name from Application Item III.1.)
(Project Name from Application Item II.1)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans,
specifications, engineering calculations, and all other supporting documentation to the best of my knowledge. I further
attest that to the best of my knowledge the proposed design has been prepared in accordance with the applicable regulations,
Minimum Design Criteria for Gravity Sewers (latest version), and the Minimum Design Criteria for the Fast -Track Permitting
of Pump Stations and Force Mains (latest version). Although other professionals may have developed certain portions of this
submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and
have judged it to be consistent with the proposed design.
NOTE — In accordance with General Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation. Misrepresentation of the application
information, including failure to disclose any design non-compliance with the applicable Rules and design criteria, may subject
the North Carolina -licensed Professional Engineer to referral to the licensing board. (21 NCAC 56.0701)
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North Carolina Professional Engineer's seal, signature, and date: ■•■A\A CA%Ra�'�•,��
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SEAL _
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05/02/2024
Applicant's Certification per 15A NCAC 02T .0106(b):
I, , attest that this application for
(Signature Authority Name from Application Item I.3.) (Project Name from Application Item II.1)
attest that this application has been reviewed by me and is accurate and complete to the best of my knowledge.
I understand that if all required parts of this application are not completed and that if all required supporting documentation
and attachments are not included, this application package is subject to being returned as incomplete. I understand that any
discharge of wastewater from this non -discharge system to surface waters or the land will result in an immediate enforcement
action that may include civil penalties, injunctive relief, and/or criminal prosecution. I will make no claim against the Division
of Water Resources should a condition of this permit be violated. I also understand that if all required parts of this application
package are not completed and that if all required supporting information and attachments are not included, this application
package will be returned to me as incomplete.
NOTE — In accordance with General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation.
Signature: �M�r�
Date: May 3, 2024
FORM: FTA l 0-23 Page 5 of 5

QW.'R
Division of Water Resources
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Flow Tracking for Sewer Extension Applications
(FTSE 10-18)
Entity Requesting Allocation: United Therapeutics
Project Name for which flow is being requested: United Therapeutics Warp 10
More than one FTSE may be required for a single project if the owner of the WWTP is not responsible for all pump
stations along the route of the proposed wastewater flow.
I. Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility Name: Triangle Wastewater Treatment Plant
b. WWTP Facility Permit #: NC0026051
c. WWTP facility's permitted flow
d. Estimated obligated flow not yet tributary to the WWTP
e. WWTP facility's actual avg. flow
f. Total flow for this specific request
g. Total actual and obligated flows to the facility
h. Percent of permitted flow used
All flows are in MGD
12
1.007
4.758
0.03294
5.798
48.3
II. Complete this section for each pump station you are responsible for along the route of this proposed
wastewater flow.
List pump stations located between the project connection point and the WWTP:
(A)
(B)
Design
Pump
Pump
Average
Approx.
Station
Station
Firm Daily Flow**
Current
(Name or
Permit
Capacity, * (Firm / pfl,
Avg. Daily
Number)
No.
MGD MGD
Flow, MGD
N/A
(C)
(D)=(B+C) (E)=(A-D)
Obligated,
Not Yet
Total Current
Tributary
Flow Plus
Daily Flow,
Obligated Available
MGD
Flow Capacity***
* The Firm Capacity (design flow) of any pump station is defined as the maximum pumped flow
that can be achieved with the largest pump taken out of service.
** Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor
(pf) not less than 2.5, per Section 2.02(A)(4)(c) of the Minimum Design Criteria.
*** A Planning Assessment Addendum shall be attached for each pump station located
between the project connection point and the WWTP where the Available Capacity is < 0.
Downstream Facility Name (Sewer): Durham County Sewer
Downstream Permit Number: WQCS00038
Page 1 of 6
FTSE 10-18

II1. Certification Statement:
�O � ---;�>C , I-Q,,� certify to the best of my knowledge that the addition of
the volume of wastewater to be pekmitted in this project has been evaluated along the route to the receiving
wastewater treatment facility and that the flow from this project is not anticipated to cause any capacity
related sanitary sewer overflows or overburden any downstream pump station en route to the receiving
treatment plant under normal circumstances, given the implementation of the planned improvements
identified in the planning assessment where applicable. This analysis has been performed in accordance
with local established policies and procedures using the best available data. This certification applies to
those items listed above in Sections I and 11 plus all attached planning assessment addendums for which I
am the responsible party. Signature of this form certifies that the receiving collection system or treatment
works has adequate capacity to transport and treat the proposed new wastewater.
Signing Official Signature
Title'oJ*Sk4iing Official
'7*.
Page 2 of 6
FTSE 10-18

Jet_ BUSINESS CORPORATION ANNUAL REPORT
1/6/zozz
NAME OF BUSINESS CORPORATION: United Therapeutics Corporation
SECRETARY OF STATE ID NUMBER: 0431121 STATE OF FORMATION: DE
REPORT FOR THE FISCAL YEAR END: 12/31 /2022
SECTION A: REGISTERED AGENT'S INFORMATION
1. NAME OF REGISTERED AGENT: CT Corporation System
2. SIGNATURE OF THE NEW REGISTERED AGENT:
Filing Ut ice Use Unly
E - Filed Annual Report
0431121
CA202310404014
4/14/2023 10:00
❑X Changes
SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT
3. REGISTERED AGENT OFFICE STREET ADDRESS & COUNTY 4. REGISTERED AGENT OFFICE MAILING ADDRESS
160 Mine Lake Ct Ste 200 160 Mine Lake Ct Ste 200
Raleigh, NC 27615 Wake County
SECTION B: PRINCIPAL OFFICE INFORMATION
Raleigh, NC 27615
1. DESCRIPTION OF NATURE OF BUSINESS: Pharmaceutical Sales
2. PRINCIPAL OFFICE PHONE NUMBER: [phone] 3. PRINCIPAL OFFICE EMAIL: Privacy Redaction
4. PRINCIPAL OFFICE STREET ADDRESS 5. PRINCIPAL OFFICE MAILING ADDRESS
1000 Spring Street
Silver Spring, MD 20910-4018
1000 Spring Street
Silver Spring, MD 20910-4018
6. Select one of the following if applicable. (Optional see instructions)
❑ The company is a veteran -owned small business
❑ The company is a service -disabled veteran -owned small business
SECTION C: OFFICERS (Enter additional officers in Section E.)
NAME: Paul A Mahon
TITLE: Secretary
ADDRESS:
1000 Spring Street
Silver Spring, MD 20910
NAME: Martine Rothblatt
TITLE: (..hiaf Fvari Ifiva nffirrar
ADDRESS:
1000 Spring Street
Silver Spring, MD 20910
NAME: Michael Benkowitz
TITLE: DrceiAnnf
ADDRESS:
1000 Spring Street
Silver Spring, MD 20910
SECTION D: CERTIFICATION OF ANNUAL REPORT. Section D must be completed in its entirety by a person/business
entity.
James Edgemond 4/14/2023
SIGNATURE
Form must be signed by an officer listed under Section C of this form.
James Edgemond
Print or Type Name of Officer
DATE
Chief Financial Officer
Print or Type Title of Officer
MAIL TO: Secretary of State, Business Registration Division, Post Office Box 29525, Raleigh, NC 27626-0525

SECTION E: ADDITIONAL OFFICERS
NAME: John Hess NAME: Matthew Kootman NAME: James Edgemond
TITLE: Assistant Secretary TITLE: Assistant Treasurer TITLE: Chief Financial Officer
ADDRESS: ADDRESS: ADDRESS:
1000 Spring Street 1000 Spring Street 1000 Spring Street
Silver Spring, MD 20910 Silver Spring, MD 20910 Silver Spring, MD 20910
NAME: NAME: NAME:
TITLE: TITLE: TITLE:
ADDRESS: ADDRESS: ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:
Name:
TITLE:
ADDRESS:
NAME:
TITLE:
ADDRESS:

DocuSign Envelope ID: C41F8790-43E0-48CD-AE31-AF9657E5A255
United
="Therapeutics
C O R P O R A T 1 O N
UNITED THERAPEUTICS CORPORATION
SECRETARY'S CERTIFICATE
1000 Spring Street
Silver Spring, MD 20910
tel: [phone]
fax: [phone]
This SECRETARY'S CERTIFICATE is made as of May 3, 2024 to certify as to the authority
of Mr. Thomas Kaufinan, Associate Vice President, Corporate Real Estate, of UNITED
THERAPEUTICS CORPORATION, a Delaware public benefit corporation (the "Company")
to act for and bind the Company in connection with construction, permitting, and real estate
matters.
I, Paul A. Mahon, certify that I am the duly elected, qualified and acting Executive Vice President,
General Counsel and Corporate Secretary of the Company, and do hereby further certify that Mr.
Thomas Kaufman is duly authorized and empowered to act for and bind the Company and its
subsidiaries in matters pertaining to corporate real estate and construction matters, including
signing agreements, permits, applications, and other undertakings, and to do such other acts and
things incidental thereto as may be necessary, appropriate, or convenient in furtherance and
accomplishment of such purposes.
IN WITNESS WHEREOF, I have affixed my signature to this Secretary's Certificate as of the
date first written above.
EP
D oc''uSigned by:
XIAL At&L,6 /l,
7828C763HA44C9...
Paul A. Mahon
Executive Vice President, General Counsel
and Corporate Secretary
M e d i c i n e s f o r L i f e

WARP 10
Facility Sanitary Flows
2/20/2024 (Update 04/26/24)
Process Waste
Peak Flow
(L/min)
Peak Flow (GPM)
Peak Usage
(L/Day)
Peak Usage
(GPD)
Labs
Sinks
15
4
151
40
Autoclave
20
5
340
90
Manuf. Equip Cleaning
IBC Washers
378
100
4,000
1,057
GMP Parts Washer
189
50
1,350
357
TFF
120
32
8,500
2,246
CIP Skid #1
226
60
12,445
3,288
CIP Skid #2
226
60
18,554
4,902
DESIGN LOAD
1,174
310 11
45,340
1 11,980
*Process loads provided by CRB
*Process waste to pH Neutralization prior to Sewer
*TFF = Tangential Flow Filtration
*IBC = Tote
*GMP = Good Manufacturing Practice
*CIP = Clean -in -Place
API Waste
Peak Flow
(L/min)
Peak Flow (GPM)
Peak Usage
(L/Day)
Peak Usage
(GPD)
Manuf. Equip Cleaning
CIP Skid #3
226
60
3,217
850
CIP Skid #4
226
60
3,335
881
DESIGN LOAD
452
119 11
6,552
1,731
*API loads provided by CRB
*CIP = Clean -in -Place

Sanitary Waste
People
*Usage/Person
(GPD)
Peak Usage
(GPD)
People Usage
Early Shift #1
40
25
1,000
Late Shift #2
40
25
1,000
Day Shift #3
160
25
4,000
Mechanical Usage
Cooling Tower Blowdown
N/A
N/A
800
Boiler Blowdown
N/A
N/A
400
Equipment Washdown
N/A
N/A
200
HVAC Condensate**
N/A
N/A
11,832
DESIGN LOAD 240 75 11 19,232
*Gallons per day per Form 2T Spreadsheet
**Average daily gpd; Peak Summer flow = 33,367.2 gpd
Total Peak Usage for Facility (Gallons Per Day)
Process Waste
11,980 GPD
API Waste
1,731 GPD
Sanitary Waste
19,232 GPD
32,943 GPD

PA ENT OF THE INTE
USGS U.S. DEU S. EOlO.IIlAl SURVEY RIOR
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P
SOUTHEAST DURHAM QUADRANGLE
NORTH CAROLINA
].S-MINUTE SERIES
tl —tItU.iIV G Su ry SCALE 1:24000 awncwsiFl[nnax ry
x- x
fir
---cx z um�xxo�zvsxm�mcxxmx
SOUTHEAST DURHAM, NC
2022
1

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■ _

Certificate of Coverage
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG010000
NC Reference No. NCG01-2023-3511
Certificate of Coverage No. NCC233511
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
United Therapeutics Corporation
is hereby authorized to discharge stormwater associated with CONSTRUCTION ACTIVITIES to surface waters of North
Carolina from a site located at:
UT Warp 10
67 TW Alexander Drive
Research Triangle
Durham County
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in N.C. General Permit
No. NCG010000.
This Certificate of Coverage is affiliated with E&SC Plan Project No. 6725-11
This Certificate of Coverage shall become effective 12/18/2023.
This Certificate of Coverage shall remain in effect until rescinded or expired.
This Certificate of Coverage will expire on the anniversary of its effective date unless it is renewed by payment of the
annual administration and compliance fee.
William E. Vinson, Jr., PE, CPESC, CPM, Interim Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

From:
Z. Nathan Bales
To:
Zhang,Chena
Cc:
tkaufman(abunither.com; Sean Cranmer; andrew Campbell; James Eason
Subject:
[External] RE: United Therapeutics Warp 10
Date:
Wednesday, October 9, 2024 4:33:35 PM
Attachments:
imaae002.Dna
image003.pnno
imaae004.Dna
image005.pnno
imaae006.Dna
23-024 - WARP10 - NCDEO Fast Track App - Revl.pdf
Certificate of Coveraae.Ddf
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the
Report Message button located on your Outlook menu bar on the Home tab.
Cheng,
Attached is an updated version of the fast track form with the watershed corrected.
The project does require an erosion control permit. Attached is the certificate of coverage for
context.
If you need anything else just let me know.
Z. Nathan Bales, PE
Senior Technical Manager
Office: 919. 361. 5000 Mobile: [phone]
bales&mcadamsco.com
621 Hillsborough Street, Suite 500
Raleigh, NC 27603
JOIN OUR TEAM in
9 cADAMS
From: Zhang, Cheng <[e-mail]>
Sent: Wednesday, October 9, 2024 3:57 PM
To: Z. Nathan Bales <[e-mail]>
Cc: [e-mail]
Subject: RE: United Therapeutics Warp 10
You don't often get email from Chem zhang&deq.nc. og_v. Learn why this is important
CAUTION: This email is NOT from McAdams. DO NOT click links or open attachments unless you verify

the sender and content.
Please respond to the following comment and question. I can go ahead draft the permit once I
receive your response.
Thank you,
ChengZhang
Environmental Program Consultant
Office of Continuous Improvement (OCI)
Division of Water Resources - Raleigh Regional Office
North Carolina Department of Environmental Quality
cheng.zhang(@deq.nc.gov
919.791.4259 Office
919.817-3856 Mobile
e:�QEQ`
'�Mr
Erna-i ro end fmm 10 +s pWm; S r8 u4ecf to thw Mwfh
C a o-,] p.; ti,-c Qe: c 7s . a ^? may t}e 04cb d to rhvrd "S.
From: Zhang, Cheng
Sent: Thursday, October 3, 2024 11:51 AM
To: bales(@mcadamsco.com
Subject: United Therapeutics Warp 10
Mr. Bales,
I am reviewing the application which looks very good, I only have one comment:
• Section IX. 4. Basin name should be "Jordan Lake Watershed", Cape Fear River does not
have a basewide buffer rules.
Also have a quick question: does the project requires erosion/sediment control permit and
NCG01 stormwater permit?
Regards,
ChengZhang
Environmental Program Consultant
Office of Continuous Improvement (OCI)
Division of Water Resources - Raleigh Regional Office
North Carolina Department of Environmental Quality

[e-mail]
919.791.4259 Office
919.817-3856 Mobile
rrrai! co+r2sporrdence ro and Pwn tars address rs sv+ "d to OW lyl60
Cafc&a Rh9c Rewds Law W may be d+xWed io rMrd pe tres.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third
parties by an authorized state official.