WQ0043908_Application (FTSE)_20221011

ice* State of North Carolina
NC Wept of Environmental t�lwwr,7
DDepartment of Environmental Quality
x:; ; Division of Water Resources
� Y
FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
Division of Water Resources OfficFTA 06-21 & SUPPORTING DOCUMENTATION
e
ll�tl+ i4�l7 I�.�t;,lt<tl
Application Number: W 4 00131 A 9 (to be completed by DWR)
All items must be completed or the application will be returned
I. APPLICANT INFORMATION:
I. Applicant's name: CITY OF SANFORD (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: PAUL M. WEEKS. PE per 15A NCAC 02T .01061b!
Title: UTILITIES & ENGINEERING DIRECTOR
4. Applicant's mailing address: P.O. Box 3729
City: Sanford State: NC Zip: 27331-3729
5. Applicant's contact information:
Phone number: (_) _- Email Address: [e-mail]
H. PROJECT INFORMATION:
1. Project name: Carr Creek Lift Station Pumping Improvements
2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project
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: Lee
4. Approximate Coordinates (Decimal Degrees): Latitude: 15.4441 Longitude: -79.1 172=
5. Parcel ID (if applicable): 9661-46-9626-00 (or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
I. Professional Engineer: Zach C. Hinnant License Number: 42054
Firm: Charles R. Underwood, Inc.
Mailing address: 2000 Boone Trail Rc
City: Sanford State: NC
Phone number: [phone]
Zip: 27330-
Email Address: [e-mail]
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: Big Buffalo WWTP Permit Number: NCO024147
Owner Name: City of Sanford
V. RECEIVING DOWNSTREAM SEWER INFORMATION:
1. Permit Number(s): Not Known
2. Downstream (Receiving) Sewer Information: 12 inch 0 Gravity f-1 Force Main
3. System Wide Collection System Permit Number(s) (if applicable): WQCS00047
Owner Name(s): City of Sanford
FORM: FTA 06-2-1 Page I of 5

V1. GENERAL REQUIREMENTS
I. 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 Dcvclgper's Ol}crational Agrcement FORM-- ORM: DEV} been attached''
[-]Yes [:]No ® N/A
3. If the Applicant is a Home/Property Owners' Association, has an HOA/POA Operational Agreement J.FORM: HOA7 and
supplementary documentation as required by 15A NCAC 02T.0115(c) been attached?
[-]Yes [:]No ® NIA
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: 75 % Domestic 15 % Commercial 10 % Industrial (See 15A NCAC 02T ,0103(201)
If Industrial, is there a Pretreatment Program in effect? ® Yes ❑ No
6. Has a flow reduction been approved under 15A NCAC 02T .01 1LU? ❑ Yes ® No
If yes, provide a cony of flow reduction approval letter with this application
7. Summarize wastewater generated by project:
Establishment Type (see 02T.0114(f))
Daily Design Flow 11.s
No. of Units
Flow
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
0 GPD
a See 15A NCAC 02T A 1 14(b). (d), (0()). and le 2) for caveats to wastewater design flow rates (i.e., minimum flow per
dwelling; 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 S.42A-4).
b Per 15A NCAC 02T .01 14(c), design flow rates for establishments not identified [in table I5A NCAC 02T.01 141 shall be
determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data.
8. Wastewater generated by project: 0 GPD (per 15A NCAC 02T d01 141
➢ 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 06-21 Page 2 of 5

VII. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewers);
I. Summarize gravity sewer to be permitted:
Size (inches) Length (feet) Material
➢ Section lI & 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 (Puma Stations/Force Mains):
PROVIDE A SEPARATE COPY OF THIS PAGE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT
I. Pump station number or name: Carr Creek Lift Station
2. Approximate Coordinates (Decimal Degrees): Latitude: 35.4441' Longitude: -79.1 1720
3. Total number of pumps at the pump station: 3
3. Design flow of the pump station: 1.17 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): 760 gallons per minute (GPM) at 200 feet total dynamic head (TDH)
5. Summarize the force main to be permitted (for this Pump Station):
Size (inches)
Length (feet)
Material
8
5200
DIP
If any portion of the force main is less than 4-inches in diameter, please identify the method of solids reduction per
MDCPSFM Section 2.01 C.1.b. ❑ Grinder Pump ❑ Mechanical Bar Screen ❑ Other (please specify) __
6. Power reliability in accordance with 15A NCAC 02T .0305(h)(l):
® Standby power source or ❑ Standby pump
P" Must have automatic activation and telemetry - 15A NCAC 02T.0305(h)(1)(B)_
1W Required for all pump stations with an average daily flow greater than or equal to 15,000 gallons per day
1W 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 06-21 Page 3 of 5

IX. SETBACKS & SEPARATIONS -- (02B .0200 & 15A NCAC 02T .0305(f)):
1. Does the project comply with all separationslalternatives found to 15A NCAC 02T .0305tt1 & (Py? ® 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
'--Water mains (vertical - water over sewer preferred, including in benched trenches)
18 inches
'-Water 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", see Section X.1 of this application
*l5A NCAC 02T_03054a*1 contains alternatives where separations in 02T.030511} 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 Claswifications webnakc
2. Does this project comply with the minimum separation requirements for water mains? ® Yes ❑ No ❑ N/A
r 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 ❑ NIA
i Please provide supplementary information identifying the areas of non-conformance.
i See the Division's draft separation requirements for situations where separation cannot be met.
iw No variance is required if the alternative design criteria specified is utilized in design and construction.
4. Is the project located in a river basin subject to any State buffer rules? ❑ Yes Basin name: ® No
IF yes, does the project comply with setbacks found in the river basin rules per 15A NCAC 02B _0200? ® Yes ❑ No
;w This includes Trout Buffered Streams per 15A NCAC 211.0202
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(cm ) (additional permits/certifications)? ® Yes ❑ No
Per 15A NCAC 02T_0105Lc6.�, 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 interferencelconflict 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 06-21 Page 4 of 5

X. CERTIFICATIONS:
1. Does the submitted system comply with 15A NCAC 02T, the Minimum. Design Criteria, for the Pcnnittinr of Pump Stations
and Force Mains_Ilateyt 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 projects requiring a variance approval may be subiect to longer
review times. For projects 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, Zach C. Hinnant PE attest that this application for Carr_ Creek Lift Station Pumping Improvements
(Professional Engineers name from Application Item I11,1.) (Project Name from Application Item 11.1)
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 Gravily Sewers (latest version), and the Minimum Design Criteria for the Fast -Truck Penmttin *
oi' Pump Stations and Force Mains {lates( 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, mcludino 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)
North Carolina Professional Engineer's seal, signature, and date:
42054 '
Applicant's Certification per 15A NCAC 02T .0106(b)- �""".""""'......"'I t'1ll.tl'l'1..........................
[,.-Paul Weeks, PE , attest that this application for Carr Creek Lift Station Pumping Improvements
(Signature Authority Name from Application Item 1.3) (Project Name from Application Item 11.11
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 (his non -discharge system to surface waters or the land will result in an immediate enforcement
action that may include civil penalties, injunctive relief, andlorcriminal 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 143-215.613, 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 line not to exceed S 10,000 as well as civil penalties up to S25,000 per violation.
Signature:
Date:
FORM: FTA 06-21 Page 5 of 5

Doc)tSign Envelope ID: 021F8543-FC78-4127-t3D26-4C2516602F31
X. CERTIFICATIONS:
1. Does the submitted system comply with L5ANCAC_M. the Minimum Desgn Criteria for ihr Pc,rmalli,u u Pumas 5wi.ans
a nrec a L t t vcrsicr , and the u r er 14Lnimum Dcsgn C'rurriu i lawst 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
2. Professional Engineer's Certification:
I,. __ __Zach C. Hinnant+ PE attest that this application for ---Carr- Creek Litt Station Pumping Improvements
(Rofesuonal Engtnet:r s name from Application Item 1I1 I ) (project Name from Application Item 11.1)
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,
lvlinir1111111 Qt*ugn Criteria for Gray tly Scwcrs tlalt;st versjW, and the Mininiunt LX.si n Crttt:ria fur tlx Fasl-Ir k Pel'imaing
O f PUftT Stativn5 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- 215.6B, 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. 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)
North Carolina Professional Engineer's seal, signature, and date: CAR
2
4Z054 f
;!
i�
3. Applicant's Certification per 15A NCAC 02T .0106(b):
1, -Paul Weeks. PE . attest that this application for Carr Creek Lift Station Pumping Improvements
(Signature Authority Name from Application Item 1.3.) (Pt lect Name from Application Item Il 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. 1 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 143-2.1.5_6A and 143-: 15.(,B. 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 line not to exceed $10,000 as well as civil penalties up to $25.000 per violation.
Docu8lpned by: 10/10/2022
Signature: Pr>Wu, At. ". S-Y. , 0,C5, ... Dale:
BBC39EM78"89..
FORM: FTA 06-21 Page 5 of 5

Docu$jgn Envelope ID: OEC69AFF-3FF94FD4-AA57-26D3DE6A6E45
State of North Carolina
NC DePt of Environmental Quality Department of Environmental Quality
�.� Division of Water Resources
1 2022
Flow Tracking for Sewer Extension Applications
Division of Water Resources Ralclgh Regional Office (FTSE 10-18)
Application Number: I FT-345
Entity Requesting Allocation: City of Sanford
Project Name for which flow is being requested: Carr Creek LS
More than one FTSE may he 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
1. Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility name: Big Buffalo Wastewater Treatment Plant
b. WWTP Facility Permit #: NCO024147
All flows are in MGD
c.
WWTP facility permitted flow:
12.0000
d.
Estimated obligated flow not yet tributary to the WWTP:
1.8516
e.
WWTP facility's actual average flow:
4.1390
f.
Total flow for this specific request:
0.00000
g.
Total actual and obligated flows to the facility:
59906
h.
Percent of permitted flow used:
50%
1I. Complete this section for each pump station you are responsible for along the route of this proposed
List pump stations located between the project connection point and the WWTP.
(A)
(B)
(C)
(D) _ (B+C)
(E)=(A-D)
Pump
Pump
Firm Design
Approx.
Obligated,
Total Current
Available
Station
Station
Capacity Average
Current
Not Yet
Flow Plus
Capacity
(Name or
Permit
Daily Flow'
Avg. Daily
Tributary
Obligated
Number)
Number
(Firm/nt)
Flow,
Daily Flow,
Flow
MGD MGD
MGD
MGD
MGD
MGD
Gaster Greek
zBig_Suffalo
x
#002
4.0291
1.6116
1.0195
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#N/A
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
0.3001
1.3197
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#NIA
#N/A
#N/A
1. 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.
2. Design Average Flow is the firm capacity of the pump station divided by the peaking factor (pf) not
less than 2.5, per Section 2.42(A)(4)(c) of the Minimum Design Criteria.
3. 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 S 0.
Downstream Facility Name (Sewer): City of Sanford Collection System
Downstream Permit Number: WQCS00047
0.2920
#NIA
#N/A
#NIA
#N/A
#N/A
Page 1 of 6 FTSE 10-18

DocuSipn Envelope ID: oEC69AFF-3FF9-4FD4-AA57-26D3DE6A6EA5
I11. Certification Statement
I, Paul Weeks, Jr. PE, certify to the best of my knowledge that the addition of the volume of
wastewater to be permitted 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 II 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.
DocuSlpn*d by:
Pam. k. UkAS Y. P.f'.
B9G3BE66678"88. 09/29/22
Signing Official Signature
Utilities & Engineering Director
Title of Signing Official
Date
Page 2 of 6 FTSE 10-18

912/22, 2:44 PM
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Charles R. Underwood, Inc.
2000 Boone Trail Rd.
Sanford, NC 27330
919.775.2463
CITY OF
NC Dept of Environmental Quality
Gil 11 2022
Raleigh Regional office
I D
CAROLINA
CITY OF SANFORD
CARR CREEK LIFT STATION PUMPING IMPROVEMENTS
FOR
THE CITY OF SANFORD SEWER COLLECTION SYSTEM
Ite-T
PAUL M. WEEKS, JR, PE, UTILITIES & ENGINEERING DIRECTOR
MARY DEPINA, CITY CIVIL ENGINEER
PREPARED BY:
ZACH C. HINNANT, PE
CHARLES R. UNDERWOOD, INC.
SEPTEMBER 28..2022

KOMU
Charles R. Underwood, Inc.
2000 Boone Trail Rd.
Sanford, NC 27330
919,775.2463
NC Dept of Environmental Quality
G-CT 11 2022
CITY OF SANFORD - CARR CREEK LIFT STATION PUMPING IMPROVEMENTS
DATE:
September 28, 2022
FROM:
Zach C. Hinnant, PE
TO:
NCDEO, Division of Wate Resources
Copy:
Paul Weeks, PE, City of Sanford, NC
RE:
Carr Creek Lift Station Improvements
This technical memorandum provides a description of the existing operating conditions of
Carr Creek Lift Station as well as proposed pumping improvements to increase its firm
capacity. This memo serves as the narrative portion of the Fast Track Sewer Extension
Application package. Other items included in this application package are as follows:
1. Fast Track Application
2. Application Fee
3. USGS Topographic Map of the project area
4. Aerial Location Map
5. Project Plans
To the date of this letter, the permit for Carr Creek Lift Station has not been located. Thus
the attached Fast Track Application and the calculations and improvements described
herein are provided in request to permit Carr Creek LS as if it were a new pump station.
i.Carr Creek Lift Station & Forcemain Description
Carr Creek Lift Station is located on Cox Maddox Rd on the east side of the Hwy 421/Hwy
87 bypass, just south of the Hwy 421 exit. The construction of Carr Creek dates back to
the 1970's, which consisted of an underground, duplex "can" station with dry -pit pumps,
rated for 625GPM @ 192' TDH. The station was upgraded in 2013 and converted to a
duplex submersible configuration utilizing the original, 10' x 10' x 20' deep wet well. A
valve vault with 8" discharge piping, including piping for a future third pump was also
installed during this upgrade. The station is equipped with a 230 kW diesel -powered
standby generator. The existing submersible pumps are rated at 625 GPM @ 192'.
The Carr Creek force main is 8" ductile iron, approximately 5,200 ft long, and travels west
down Cox Maddox Rd. and under the Hwy 87 bypass in alignment with Cox Maddox Rd on
the west side of the bypass where it continues to the west side of Hwy 87 Business then
turns north until it discharges into a gravity sewer manhole at the intersection of Hwy 87
Business and Wilson Dr.
(9;> Page 1 of 11

NC Dept o"nvlronmental Quality
G� T ? f .822
A. Current Station Flows, Pumping Conditions. and Capacity
Radcigh Regional
of
To determine design average daily flows (DADF) tributary to the pump station, we
co
acquired pump run time logs from the City for all of 2021 & for 2022 thru the week of
9/19/22. We performed drawdown testing with City personnel to determine the
pumping rate of the existing station pumps and calculate average daily flows based on
pump run times. The results of our drawdown tests are outlined below in Table 01.
Pump
Number
Average Pumping Rate (GPM)
Average Pumping Rate (MGD)
Pump 1
716
1.03
Pump 2
707
1.02
Pumps 1&2
781
1.12
Table 01— Drawdown Test Results
Based on the above pumping rates and the provided pump run times, average daily
flow to the pump station was calculated and shown in Table 02.
Period
Average Pumping
Rate (GPM)
Pump Run
Hours
Average Daily Flow
(MGD)
2021
716
2092
0.246
2022 (thru 9/19)
716
1227
0.20
Table 02 — Calculated Average Daily Flow
B. Firm & Available Capacity
The current firm capacity of the station. usine a 700eAm DumQing rate is 1.008 MGD.
Because it had this highest ADF, the 2021 ADF value of 0.24 MGD is used as the DADF
in establishing the available capacity at Carr Creek Lift Station. Using a 2.5 peaking
factor and a firm capacity of 1.008MGD, the available station capacity would be 0.408
MGD, as calculated below:
1.008 MGD — (0.246 MGD x 2.5 PF) _ .393 MGD Current Available Capacity
C. Forcemain Analysis & System Curve
To backcheck our drawdown test results, we constructed a system curve with the
existing pump performance curve plotted on the graph (Figure 01). A c factor of 100
and a static head of 106' was used to construct the system curve. The forcemain
discharge elevation to the "Pump Off" water level elevation is approximately 106' _
the static lift component of the system. This was double checked with a gauge on the
system side of the check valve during testing, in which static pressure was 40psi (92')
and the distance from the gauge to the "Pump Off" level was 14' = 106'.
<9� Page 2 of 11

- ---F4 al cnvironincatat %,ZL N• j
OCT 11 7022
250
200
,150
100
50
-- a eig cgional Office
Carr Creek Lift Station - Existing Conditions
M
a
ON
ME
ME
No
MM
ON
on
so
a
M
ON
ME
ON
0
ME
No
0 -,
0
100 200 300 400
System Curve
500 600 700 800 900 1000 1100
Flow (GPM)
— - FM 4" 5435MV, 13.69" Dia
Figure 01— Carr Creek Existing Pump Conditions
11. Potential Future Flow
Currently, there are several proposed developments that will discharge sewer to Carr
Creek Lift Station. Hence, within this application we are including drawings and
calculations to increase the firm capacity of Carr Creek Lift Station. These future flows
will be submitted in separate permit applications by others and are not included in this
application.
A. Pumping Improvements to Increase Firm Capacity
As mentioned in the station description, there is piping in place for a future 3rd pump
to be installed. Because firm station capacity is defined as pumping capacity with the
largest pump out of service, adding a 31 pump would increase the station's capacity.
In addition, the existing pumps can have full diameter impellers installed without
overloading the motors which would increase flow output. Based on the current firm
station capacity of 1.008 MGD, if a third duplicate pump is installed and full diameter
impellers are installed on the two existing pumps, the permitted station capacity would
increase to 1.17 MGD, and increase the available station capacity to 0.56 MGD. This is
demonstrated in Figure 02. Design plans for these improvements are part of this
application package.
Page 3 of 11

250
200
50
0
0
Carr Creek Lift Station - Proposed Conditions
MEN
No
0
so
ME I
100 200 300 400 500 600 700 800 900 1000 1100
Flow (GPM)
—System Curve —FM 4" 5435MV, Full Dia Imp Parrallel Pump Operation
Figure 02 — Carr Creek Proposed Pumping Conditions
B. Existing Forcemain
In this proposed improvement, pressures in the forcemain would remain below 100 psi
and velocity would be 5.8 fps during 2 pump operation, thus the forcemain would
require no improvements.
C. Standby Generator Power
As described earlier, Carr Creek has a permanently mounted 230 kW diesel generator
onsite. It has been confirmed that this generator is capable of running both existing
pumps at the same time. Because firm capacity is defined as the maximum pumped
flow with the largest pump out of service, the existing generator is considered
adequately sized to accommodate the proposed pumping improvements to increase
the station firm capacity.
(M> Page 4 of 11

Ill. Receiving Sewer — Carr Creek 12" Gravity Interceptor
The receiving sewer for the Carr Creek Lift Station consists of 8" collector lines and (2)12"
trunk lines that are tributary to an 18" gravity interceptor that flows to Gaster's Creek Lift
Station. As the 18" interceptor and Gaster's Creek Lift station currently have available
capacity in excess of the difference in the current and proposed firm capacity of Carr
Creek, this analysis begins at the Carr Creek forcemain discharge manhole and ends at the
18" interceptor manhole behind industrial Drive and considers all tributary flow in
between. This is shown in Figure 04.
�7 �. J
54
i 35W36 Q•
9 19 3 1 3GQ� _
653 443 �' 5335 ✓
// l / �E 1
41 / �diC 357U 1
�3
�L
(' FM Discharge
Manhole, begin rec'v
sewer evaluation-
� vim•
I 37 71 u^r �
R }
JT
i[jr� Carr crk- Ls
3,
ire
K - Gravity Sewercharge Into 1$', rec v sewerluation
Figure 04 - Map — Carr Creek Lift Station - Limits of Receiving Sewer Evaluation
This collection system serves a mix of establishment types, including residences,
commercial businesses, medical facilities, warehouse spaces, restaurants, convenience
stores, and a variety of retail shops.
A. Boundary of Analysis
The Carr Creek forcemain discharges into a convergence manhole at the intersection of
Hwy 87 Business and Wilson Drive. This manhole also accepts discharge from an 8"
collector sewer line from the north and begins a 12" trunk main heading approximately
310OLF down Wilson Drive where it turns north on Lee Avenue for 90OLF and converges in
a manhole at Cameron Drive with another 12" trunk main coming from the north (which
serves the shopping centers on the south side of Hal Siler Dr.) into (1) common 12" trunk
line. From there, this 12" line travels southeast approximately 1700 LF, crossing Industrial
Page 5 of 111.
173•

Dr. and entering a sewer easement where it discharges into a convergence manhole
starting the 18" interceptor to Gaster's Creek. All tributary sewer to the 12" trunk mains
as described above are included in this analysis and create the purple boundary, indicated
as "Limits of Gravity Eval" in Figure 05.
i Jew ,
GIs
Feet
y'n
17
Cut Yffy FJ
Los
Xj
LIAM of
41
lie
Figure 05 - Map — Carr Creek Lift Station - Boundary of Receiving Sewer Evaluation
B. Design Flow Rates
Design flow rates for the existing gravity sewer within the evaluation boundary were
determined using the 15A NCAC 02T .0114 table for all establishments except for
commercial spaces where the number of employees, plumbing fixtures or loading bays
(for warehouse spaces) were unknown. For these establishments, design flows were
determined using "Table 1 Average Design Flows for Development Types" from the EPA
document "Collection Systems Technology Fact Sheet". Table 03 shows the design flow
rates used by establishment for this analysis.
Page 6 of 11

Type of Establishment
Daily Flow (gal) For Design
Residence
360 gal / residence
Commercial, General
2,000 gal / acre
Commercial, Office
0.20 gal / SF
Commercial, Warehouse
600 gal / acre
Retail, with Food Service
130 gal / 1000 SF
Retail, without Food Service
100 gal / 1000 SF
Restaurant, Full Service
40 gal / seat
Restaurant, Carry Out Only
50 gal / 100 SF
Food Stand/Kiosk
50 gal / 100 SF
Churches
3 gal / seat
Barber Shops
50 gal / chair
Service Stations
250 gal / plumbing fixture
Self -Storage Warehouse
1 gal / unit
Medical Offices
250 gal / practitioner / shift
Car Washes
1200 gal / bay
Table 03 — Design Daily flow Rates by Establishment
C. Receiving Sewer Capacity
We have not been able to obtain construction drawings for the gravity sewer in this analysis,
so we have based the capacity on the sewer being constructed at minimum slopes as defined
by NCDEQ Minimum Design Criteria for the permitting of Gravity Sewers, which states that
sanitary sewers shall be designed flowing half -full at average daily flow. A 12" gravity main
flowing half full has a capacity of 0.540 med.
To simplify the quantification of daily flows, the boundary of analysis was divided into
(3) sections. These sections are bounded by the yellow, green, and orange lines in
Figure 05. Resulting tabular data for current design flow by section, excluding DADF
from Carr Creek, is shown in Figure 06. A summary of this data is shown in Table 04.
Boundary
Total Existing DADF
Yellow
88180 Gal / 61.2 GPM
Green
35900 Gal / 25.0 GPM
Orange
84200 Gal / 58.5 GPM
Total DADF
208280 Gal / 144.6 GPM / .208 MGD
Table 04 — Existing Receiving Sewer DADF without Carr Creek Flow
<0> Page 7of11

Carr Creek Down Stream Sewere Evaluation to 12' x 12" x 18" Convergence MH
le#
Parcel 0
Type
Class
Name
yellow
Ulm
CITY
ZT or EPA Flow ODF
Y1
966116216400
Retail w/o Food
Mixed
46200
10011000SF
4620
1
Restaurant
Full Service
Hwy SS
Seats
76
40
3040
2
Restaurant
Full Service
Firthouse Subs
Seats
14
40
13W
3
Restaurant
Full Service
King Ch nese
Seats
ISO
40
6000
4
Barber
Fantastic Sams
Chairs
6
50
300
Y2
966116479SOO
Conv Store
w/food
Murphy
SF
2750
60/100SF
1650
Y3
966116492200
Restaurant
w/o Food
Wendys
Seats
40
40
1600
Y4
966117314900
Restaurant
w/o Food
Chic Fil A
Seats
106
40
4320
YS
966117236100
Restaurant
w/o Food
Zaxbys
Seats
35
40
1400
Y6
966L07822700
Retail
w/o Food
Burkes
Seats
19200
100/1000SF
192
Y7
966117GS1100
Restaurant
w/o Food
Cracker 8arrell
Seats
142
40
5680
Y8
966107970800
Restaurant
w/o Food
Ruby Tuesday
Seats
115
40
4600
Y9
96610775S700
Vacant
0
Y10
966107660300
Vacant
0
Y11
966107771300
Residence
BR
3
120
360
Y12
966107404600
Vacant
0
V13
9661073378W
Medical Office
Renal Research
Renal Research
Doctors/Sonft
3
250
750
Y14
966107112300
Warehouse
Self Storage
Wilson Rd Self St
Gal/Unit
475
1
475
Y15
965197904600
Residence
OR
3
120
360
Y16
955196896100
Service Station
Auto Shop
Norris Collision
250 gal/HYlure
6
250
1500
Y17
965196788200
Business
General
Lee City Recycle
Emp'Sh.ft
25
2
50
YIS
965196788200
Retail
w/o Food
Mid State Mobile H
SF
2000
100/106SF
200
Y19
965196663100
Vacant
0
Y20
965196650100
Vacant
0
Y21
965196454200
Commercial
Office
B&1 Auto Sales
SF
6400
20/1005r
1290
V22
965196345400
Service Station
Auto Shop
Integrated Auto
Fixture
6
250
1500
Y23
965196235600
Vacant
0
Y24
965196210600
Vacant
Y25
9651960.39000
Business
Y26
965196700400
Waste
Y27
96S195S77100
Vacant
Y28
965195346500
Vacant
Y29
965185997500
Retail
V30
965185872600
Service Station
V31
96SISSS77S00
Residence
Y32
965185374600
Vacant
Y33
965185412400
Commercial
Y34
965174696500
Commercial
Y35
9651851S9200
Commercial
Y36
965185075000
Commercial
Y37
965175754200
Retail
Y38
965175194600
Commercial
Y39
96S176019800
Residence
Y40
965166923400
Residence
Y41
966116216400
Retail
General
DMVOfgce
Emp'Shift
Transfer Station
w/o Food
Statesville Barn Co
SF
Auto Shop
Car Pros
250 gal/Fixture
Office
JA Hart Const
SF
Genera
Patriot Performance
SF
Genera
Patriot Performance
SF
Genera
SF
w/o Food
World Stone
SF
Warehouse
HAI Fence
SF
Assume 3BR
Assume 3BR
wlfood
Wal Mart
4 25
37620 100110005E
6 250
3 120
5000
30000
30000
No Plumbing
30200
3520
3
3
705000
20(100SF
2000/acre
2000/acre
0
300
2400
0
0
3762
I500
360
0
1000
6000
1380
0
100/1000
3020
600/acre
5o
120
360
120
360
130/10005F
26650
total Ye!low
98119
GPM
6123541G7
G3
966107S90800
Commercial
General
Sanford Honda
SF
23500
2000/acre
1080
G2
966108326200
Restaurant
Ron's Barn
Ron's Barn
Seats
200
40
8000
G3
966108139200
Car wash
bpcdr Wash
bay
3200
3
3600
G4
966109147800
Commercial
Office
Majestic Auto Sales
SF
2000
201100
400
G5
96SI98946900
Retail
1
Restaurant
Ful' Service
Jersey Mikes
Seats
SS
40
720
2
ear bet Shop
Sports Clips
Chairr
8
50
400
3
Retail
w/o Food
Mattress Warehouse
SF
4600
100/1000
460
4
Medical
Office
First Health
Doctors'Sh its
1
2S0
250
trfr
965198971500
Retail
w/o Food
SF
4600
100/10005F
460
1
Restaurant
Full Service
Dunkin Donuts
Seats
48
40
1920
2
Restaurant
Full Servfce
Jimmy Johns
Seats
so
40
2000
ts7
965198S49500
Vacant
0
GS
965197690900
Commerical
Warehouse
Central Electric
SF
loom
GOO/acre
140
M
Page 8 of 11

G9
965197877100
Commertial
Warehouse
Central Electric
SF
13640
600/acre
190
G10
966107176100
Vacant
G11
965197624700
Commercial
Warehouse
Static Control
$F
34500
600/0cre
475
G12
965t97444700
Commerdal
Office
Sagdh'Istee
SF
2400
201100
240
G13
9651973S7600
Commercial
Warehouse
SF
8400
600/acre
120
G14
N/A
G15
965197275700
Commerical
Office
Faulk Electric
SF
3500
201100
350
G16
065109116000
Commerical
Office
Cooper Oil
SF
5400
20/100
540
G17
9GS197872500
Vacant
0
G18
965197029700
Vacant
0
G19
965197410100
Commercial
General
PO Automation
SF
6400
2000/Acre
295
G20
965t96592900
Cony Stowe
wfood
Good ;Mice
SF
2000
60/100
12W
621
965196394700
Commerr ial
Office
King Heat & Ai,
SF
5000
201100
S00
G22
965196287500
Warehouse
Self -Storage
A Storage
Gal/Unit
200
1
200
G23
965196178700
Retail
w/o Fond
City Elec
SF
8000
100/1000
800
G24
955196064500
Vacant
0
G2S
955186952400
Commercial
General
M.xed
SF
4000
201100
800
G26
965186844800
Retail
wlofood
SF
4000
100/1000
400
677
955156747100
Vacant
0
628
965186639400
Commercal
Office
Hancook Realty
SF
1500
201100
300
G29
965196624200
Vacant
0
G30
965186512400
Cony Store
w/food
Fastee Mari
SF
5000
60/100
3000
G31
965186530200
Vacant
0
G32
965196546900
Vacant
0
G33
965186688300
Vacant
0
G34
955186982700
Commercial
Warehouse
SF
17000
600/acre
235
G35
9GS187814200
Retail
w/o food
Automotive
SF
15000
100/1000
1500
G36
965187824900
warehouse
Self Storage
Gal/Unit
5o0
1
500
G37
065197534300
Vacant
0
G39
965187352000
Vacant
0
G39
965187122300
Commercial
Warehouse
Hope Mills Glass
SF
6040
GOO/acre
8S
G40
9651872154OU
Vacant
0
G41
965196491500
Commercial
Warehouse
All World MachlnefV
SF
4560
600/acre
65
G42
965186382000
Commercial
Office
Godfrey's Auto Sales
SF
1064
201100
215
G43
965IW72200
Vacant
0
G44
965186656200
Vacant
0
G45
966117582WO
Retail
wlfOgd
1`ul
S1
34300
130 / 3000SF
4459
@jrT—qtal Green 358
MIL.�GP - 24.9298611,
01
9651WO53300
Retail
w/o food M.m
SF
Lt1000
100/10W
11000
1
Buffalo Wild Wings
Seats
205
40
8200
2
Trop-call5moot,ic
Scats
17
40
680
3
Aye 1'oro
Sea"
184
40
7360
4
Sarkus
Seats
40
40
1600
5
Mati da's
SF
128
50/100
64
6
Marco's Pieta
SF
1750
50/100
875
7
Great Clips
Chars
11
50/Charl
550
8
Pine Ridge
Donor
1
250/Shift
2SO
02
965199608700
Retail
w/ofaod Verzon
SF
5700
100/1000
570
03
965188554200
Residence
360
04
965188456500
Residence
360
OS
965188470300
Residence
360
06
965188374900
Residence
360
07
965188380500
Residence
360
08
955189295100
Residence
360
09
965198291700
Residence
360
010
965188094300
Residence
360
O11
965198078800
Residence
360
012
965188173100
Residence
360
013
965188168400
Residence
360
014
9651882S4800
Residence
360
015
965188254200
Residence
360
016
965198444300
Residencu
360
017
9651AR338900
Residence
360
Page 9 of 11

018
9GS188239100
Residence
360
019
965188144600
Residence
360
020
965188055500
Residence
360
021
96S188060100
Residence
360
022
96SI78966600
Residence
360
023
965178071300
Residence
360
024
965178753900
Residence
360
025
96517SM300
Residence
360
026
965178942700
Vacant
0
027
965178848100
Residence
360
028
965178934500
Residence
360
029
965178939000
Vacant
0
030
965189024500
Residence
360
031
965188111700
Residence
360
032
965178708400
Vacant
0
033
965177989800
Vacant
034
965177224900
Commercial
General
StatucCortrol
SF
179320
2000/Acre
35864
035
96SI66867900
Church
Pnnce of Peace
Seats
100
3/seat
300
036
965176398800
Commercial'
General
Spanset
$F
639M
Z1140/Acre
2950
037
965177715800
Vacant
0
039
965176895400
Commercia=
Warehouse
SF
20890
600/Acre
290
039
965186076300
Residence
360
040
965176927300
Commercia'
Warehouse
SF
38850
600/Acre
535
041
965186302400
Reta!l
w/ofood
vape5hop
SF
2460
100/1000
246
042
965176966500
Residence
360
043
9651768SO400
Vacant
0
044
965176S32200
Vacant
0
045
965176051000
Service $lovon
Auto Shop
8urges5 AUTO
250gal/1,alure
6
290
1500
046
9651763595W
Vacant
0
047
965176665900
Vacant
0
048
96S1764769DO
Commercial
Gomm;
5Pamn
SF
2000O
2000/Acre
920
Total Orange
84194J
GPM9,468o;sj
Total ADOF (A8)
209272
GPM
144 633333
MGD
0,208272
Figure 06 — Receiving Sewer Design Daily Flow without Carr Creek Flow
D. Proposed Carr Creek Flow
As summarized earlier, the proposed firm capacity increase to Carr Creek lift station is
.162MGD (1.17 MGD Proposed — 1.008 MGD Existing firm capacity), yielding a DADF
increase of .11MGD to the receiving sewer when divided by a 2.5 peaking factor. A
summary of the total flow in the receiving sewer in existing, measured, and proposed
conditions is illustrated in Table 05.
Condition
Firm Capacity
MGD
P.F.
DADF Carr Crk
MGD
DADF Rec'v Sewer
MGD
Total
MGD
Measured
1.008
2.5
0.403
.208
.608
Proposed
1.17
2.5
0.468
.208
.676
Table 05 — Summary of Total Receiving Sewer Flows
<0> Page 10 of 11

IV. Summa and Conclusions
• As confirmed thru drawdown testing, Carr Creek Lift Station has a current firm
capacity of 1.008 MGD, correlating to a DADF of 0.4 MGD when using a 2.5 PF.
• Proposed improvements to the pump station will increase firm capacity by to 1.17
MGD, correlating to a DADF of 0.468 MGD DADF when using a 2.5 PF.
• The existing available station capacity as measured thru drawdown testing and
pump run times is 0.393 MGD.
• The new available station capacity after the proposed pumping improvements
would increase the available station capacity to 0.56 MGD
• Existing receiving sewer flows to the 18" interceptor (less flows from Carr Creek) is
calculated to be .208 MGD.
• With Carr Creek DADF added to the receiving sewer, total flow at the point of
greatest cumulation is potentially .608 MGD existing and .676 MGD with the
proposed pumping improvements.
• NCDEQ Minimum Design Criteria for the permitting of Gravity Sewers states that
sanitary sewers shall be designed flowing half -full at average daily flow. At
minimum slope, a 12" gravity main flowing half full has a capacity of 0.540 med.
• Based on this evaluation, the 12" trunk main "bottleneck" between industrial drive
and the 18" interceptor could flow above half full after pumping cycles from Carr
Creek currently. At the proposed .676 MGD, this 12" trunk main could potentially
flow 58% full.
• Considering the DADF from Carr Creek is not constant and concentrated to 2.5x
DADF during pumping cycles, the receiving sewer would only potentially see
periodic flows above half -full pipe. In addition, the overall traverse of the 12"
receiving sewer to the 18" interceptor is nearly a mile long, and the length of the
pipe would level out the instantaneous flow from Carr Creek pumping cycles, likely
resulting in a less than half full pipe nearly 100% of the time.
am available to discuss the information presented in further detail at your convenience.
Best Regards,
Zach C. Hinnant, PE
<9;> Page 11 of 11