WQ0042038_Application_20201015

August 9, 2020
NCDEQ
610 East Center Avenue
Mooresville, North Carolina 28115
RE: Commons at Farmington
Location: Farmington, Rocky River Road, Harrisburg, NC 28215
Water Resources Department:
In addition to this cover letter, please find enclosed the following:
1. Application Form (FTA) — Signed original
2. Application Fee - $480
3. FTSE Form - Signed, Original Jurisdiction
4. Street Level Map
5. USGS Map
Project Description
The proposed development is located off of Rocky River Road within the proposed
Farmington Development in the Town of Harrisburg. The site will be located at the
north-east corner of the proposed intersection of Farmington Ridge Parkway and
Clear Creek Lane. The proposed development will include the construction of 112
townhomes and 36 single-family residential lots and the associated public streets
and utilities.
creating experiences through experience 3430 Toringdon Way, Suite 110, Charlotte, NC 28277 / 704. 527. 0800

McAIDAM_"A"s
WOROS
MOOFtf�,;VR-LF REGIONAL OFFICE
Previous Permitting
The project's erosion and sedimentation control plan was approved with
performance reservations by NCDEQ on February 24, 2020.
The project is currently under review for permitting through the Town of
Harrisburg.
Sanitary Sewer System and Water Supply system
The water supply system and sanitary sewer system will serve 112 townhome
units and 36 single-family lots. The site will receive water by tapping the 8"
watermain (to be installed as part of the Farmington infrastructure) along Clear
Creek Lane. The proposed water supply system is comprised of 4,747 linear feet
of proposed water line and will service 119,232 GPD. The proposed sanitary sewer
system is completely gravity fed with 3,896 linear feet of 8" sanitary sewer line
proposed and will service 61,920 GPD.
Sincerely,
MCADAMS
Stuart Woodard, PE
Project Engineer
creating experiences through experience 3430 Toringdon Way, Suite 110, Charlotte, NC 28277 / 704. 527. 0800

State of North Carolina
Department of Environmental Quality
Division of Water Resources
15A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXT N APPLICATION
Division of Water Resources FTA 04-16 & SUPPORTI OCUMENTATION
,��Cl/DWR
Application Number: i � �� �'�` ✓ (to be completed by MAR) l' J. c3 2 0 EL
All items must be completed or the application will be returned WQROS
I. APPLICANT INFORMATION: MO ORESVILLE REGIONAL OFFICE
1. Applicant's name: Town of Harrisburg (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: Rob Donham, P.E. per 15A NCAC 02T .0106(b)
Title: Engineering and Public Works Director
4. Applicant's mailing address: 4100 Main Street, Suite 102
City: Harrisburg State: NC Zip: 28075-
5. Applicant's contact information:
Phone number: [phone] Email Address: rdonhamna,harrisburgnc.org
II. PROJECT INFORMATION:
1. Project name: Commons at Farmington
2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project
If a modification, provide the existing permit number: WQ00 and issued date:
If new construction but part of a master plan, provide the existing permit number: WQ00
3. County where project is located: Cabarrus
4. Approximate Coordinates (Decimal Degrees): Latitude: 35.2927' Longitude:-80.6715
5. Parcel ID (if applicable): 5506073152
(or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
1. Professional Engineer: Stuart Woodard, PE
License Number: 046788
Firm: McAdams
Mailing address: 3430 Toringdon Way, Suite 110
City:.Charlotte State: NC Zip: 28277-
Phone number: [phone] Email Address: [e-mail]
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: Permit Number:
Owner Name:
V. RECEIVING DOWNSTREAM SEWER INFORMATION (if different than WWTF):
1. Permit Number(s): WQ Downstream (Receiving) Sewer Size: 8 inch
System Wide Collection System Permit Number(s) (if applicable): WQCS
Owner Name(s): The Water & Sewer Authority of Cabarrus County
FORM: FTA 04-16 Page 1 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 Operational Agreement (FORM: HOA) been attached?
❑ Yes ❑No ®N/A
4. Origin of wastewater: (check all that apply):
® Residential 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: 100 % Domestic/Commercial % Commercial
_ % Industrial (See 15A NCAC 02T .0103(20))
,Is there a Pretreatment Program in effect? ❑ Yes ❑ No
6. Hasa flow reduction been approved under 15A NCAC 02T .0114(fl? ❑ Yes ®No
➢ If Yes, provide a copy of flow reduction approval letter
7. Summarize wastewater generated by project:
Establishment Type (see 02T.0114(fl) T
Daily Design Flow a,n
No. of Units
Flow
Residential, Single -Family Detached
120 gal/day/bedroom * 5 bedrooms = 600
36
21,600 GPD
Residential, Townhomes
120 gal/day/bedroom * 3 bedrooms = 360
112
40,320 GPD
gal/
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
61,920 GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(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 G.S. 42A-4).
b Per 15A NCAC 02T .0114(c), design flow rates for establishments not identified [in table 15A NCAC 02T.0114] shall be
determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data.
8. Wastewater generated by project: _ GPD (per 15A NCAC 02T .0114)
➢ Do not include future flows or previously permitted allocations
If permitted flow is zero, indicate why:
❑ Pump Station or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line
❑ Flow has already been allocated in Permit Number:
❑ Rehabilitation or replacement of existing sewer with no new flow expected
❑ Other (Explain):
FORM: FTA 04-16 Page 2 of 5

VII. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .030*5 & MDC (Gravity Sewers):
1. Summarize gravity sewer to be permitted:
Size (inches)
Length (feet)
Material
8
3411
PVC
8
485
DIT
3 F yG
➢ 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 requirement is not allowed and a violation of the MDC
VIII. PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .0305 & MDC (Pump Stations/Force Mains):
COMPLETE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT
1. Pump station number or name:
2. Approximate Coordinates (Decimal Degrees): Latitude: Longitude: - °
3. Design flow of the pump station: millions gallons per day (firm capacity)
4. Operational point(s) of the pump(s): . gallons per minute at feet total dynamic head (TDH)
5. Summarize the force main to be permitted (for this Pump Station):
Size (inches) Length (feet) Material
6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1):
❑ Standby power source or pump with 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
Or if the pump station has an average daily flow less than 15,000 gallons per day:
❑ Portable power source with manual activation, quick -connection receptacle and telemetry - 15A NCAC 02T
.0305(h)(1)(C)
CON
❑ Portable pumping unit with plugged emergency pump connection and telemetry - 15A NCAC 02T .0305(h)(1)(C):
➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant (draft agreement)
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
in the case of a multiple station power outage.
FORM: FTA 04-16 Page 3 of 5

IX. SETBACKS & SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(f)):
1. Does the project comply with all separations found in 15A NCAC 02T .0305(f) & 60 ® Yes ❑ No
1 iA NCAC 027.0305(f) contains minimum separations that shall be provided for sewer systems:
Setback Parameter*
Separation Required
Storm sewers and other utilities not listed below vertical
24 inches
Water mains vertical -water over sewer 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
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 see item IX.2
50 feet
**Any other stream, lake, impoundment, or ground water lowering and surface drainage
ditches
10 feet
Any building foundation
5 feet
Any basement
10 feet
Top slope of embankment or cuts of 2 feet or more vertical height
10 feet
Draina e systems and interceptor drains
5 feet
Any swimming pools
10 feet
Final earth grade (vertical)
36 inches
➢ 15A NCAC 02T.0305(e) contains alternatives where separations in 02T.0305(fl cannot be achieved.
➢ **Stream classifications can be identified using the Division's NC Surface Water Classifications webpage
➢ If noncompliance with 02T.0305(fl or (g), see Section X of this application
2. Does the project comply with separation requirements for wetlands? (50 feet of separation) ®Yes ❑ No ❑ N/A
➢ See the Division's draft separation requirements for situations where separation cannot be meet
➢ No variance is required if the alternative design criteria specified is utilized in design and construction
➢ As built documents should reference the location of areas effected
3. Does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ® Yes ❑ No ❑ N/A
➢ This would include Trout Buffered Streams per 15A NCAC 2B.0202
4. Does the project require coverage/authorization under a 404 Nationwide or ® Yes ❑ No
individual permits or 401 Water Quality Certifications?
➢ Information can be obtained from the 401 & Buffer Permitting Branch
5. 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 are 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.).
6. Does this project include any sewer collection lines that are deemed "high -priority?"
Per 15A NCAC 02T.0402, "high -priority sewer" means "any aerial sewer, sewer contacting surface waters, siphon, or sewer
positioned parallel to streambanks that is subject to erosion that undermines or deteriorates the sewer.
❑ Yes ®No ❑ N/A
➢ 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 permitee's individual System -Wide Collection permit.
FORM: FTA 04-16 Page 4 of 5

X. CERTIFICATIONS:
I. Does the submitted system comply with 15A NCAC 02T, the Minimum Design Criteria for the Permitting of Pump Stations
and Force Mains (latest versionl, and the Gravity Sewer Minimum Design Criteria (latest yersion) as applicable?
® Yes ❑ No
If No, complete and submit the Variance/Alternative Design Request application (VADC 10-14) and supporting documents for
review. Approval of the request Is required prior to submittal of the Fast Track Application and supporting documents
2. Professional Engineer's Certification:
I STygwr V61p6U %0 attest that this application for
(Professional Engineer's name from Application Item III.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, Gravity Sewer
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.
North Carolina Professional Engineer's seal, signature, and date:(CAR©�����
i
OESSp'��'L
SEAL -
0 3788
Applicant's Certification per 15A NCAC 02T .0106(b): '/,/ �Ai'Wv\\\,Gte-0t-2o2o
Jf S V' a tYC \jJ attest that this application for
(Signature Authority's naAie & title from Application Item I.3.)
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 1.33-215.6B, 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.
ASignature: _ Date: W 2 7 12,0
FORM: FTA 04-16 Page 5 of 5

VICINITY MAP
NoTes.

n,
7-� -1
A-
ii
Iva
%
N
COMMONS AT FARMINGTON
USGS TOPO MAP
0 1,000 2,000 4,000 PROJECT #: TPH-1 9000
Feet
I inch = 2,000 feet HARRISBURG, NORTH CAROLINA

DWI
State of North Carolina
e Department of Environmental Quality
Divlslon of Water Resources Division of Water Resources
Flow Tracking/Acceptance for Sewer Extension Permit Applications
(FTSE—01/14)
(JURISDICTION USE ONLY)
Jurisdiction Requesting Flow Acceptance for Collection System:
❑City of Concord ❑City of Kannapolis 0 Town of Harrisburg ❑Town of Mt. Pleasant
❑Charlotte Mecklenburg Utilities
Project Title, Description, and Number of Lots/Unit:
Project Title:
Description:
What is the quantity of flow that will be discharged?
GPD
Flow type:
Domestic % ❑ Commercial % ❑ Industrial %
Section I - List the Jurisdiction's pump stations located between the project connection point and the WSACC
Tn1Pr!`Ptnr ronnPntinn noint.
(A)
(B)
(C)
(D) = (B+C)
(E)=(A-D)
Pump Station
Firm Capacity *
Design Average Daily Flow **
Approx. Current
Obligated, Not Yet
Total Current Flow
Available
(Name or Number)
MGD
(Finn/pf)
Average Daily Flow
Tributary Daily Flow
Plus Obligated Flow
Capacity***
MGD
MGD
MGD
MGD
MGD
-The Firm Capacity 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 not less than 2.5.
***A Planning Assessment Addendum shall be attached for each pump station located between the project connection point and the WWTP where Available Capacity is < 0.
Section II. Jurisdiction's Certification Statement:
I, J Ott, SD! „t\,, , certify that, to the best of my knowledge, the addition of the volume of wastewater to be permitted in
this project has been evaluated along the route to the receiving WSACC interceptor; and the flow from this project is not
anticipated to cause any capacity related sanitary sewer overflows or overburden on any downstream pump station in route to
the receiving WSACC interceptor 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 Section I plus all attached
planning assessment addendums for which, to the best of my knowledge, will not adversely affect the downstream sewer
capacity. Signature of this form indicates acceptance of this wastewater flow.
Jurisdiction's Signing Official Signature
)1 :�_3 l 2- 6
Date
Revision Date: 08/09/13

WSACC
ISO 11001:2015.113arfukkSecior • 0111W800111U1
September 14, 2020
Mr. Haynes Brigman
Town Manager
Town of Harrisburg
P.O. BOX 100
Harrisburg, NC 28075
Subject: Flow Acceptance Request - Town of Harrisburg
Commons at Farmington
Dear Mr. Brigman:
WATER & SEWER AUTHORITY
OF CABARRUS COUNTY
232 Davidson Hwy.
Concord, NC 28027
704,786,1783 ♦ 704.795.1564 Fax
www.wsacc.org
This is a notice of capacity for the flow acceptance request received by the Water and Sewer Authority of
Cabarrus County (WSACC) from the Town of Harrisburg on August 12, 2020. WSACC has or will have
capacity at the Rocky River Regional Wastewater Treatment Plant and appropriate sewer interceptors to transport
and treat the domestic wastewater from the proposed project entitled Commons at Farmington, located off
Farmington Ridge Parkway. The referenced project will serve a residential development with 36 five -bedroom
homes and 112 three -bedroom homes, with a projected wastewater flow of 61,920 gallons per day (gpd). The
wastewater generated by this project will be conveyed through a proposed gravity system and then enter
WSACC's system at the existing 18-inch Fuda Creek Interceptor. WSACC acknowledges it has or will have
capacity for wastewater from the proposed development based on information provided by The John R.
McAdams Company, Inc. using North Carolina Department of Environmental Quality (NCDEQ) wastewater flow
guidelines.
If construction of this project does not commence within two (2) years of the date of this notice, the notice is
rescinded and a second request and notice will be required before flow capacity is accepted. Please notify
WSACC, in writing, when construction of this project is initiated. This sewer capacity allocation may also be
cancelled pursuant to the conditions set forth in the WSACC Sewer Allocation and Commitment Policy.
Please note that the final commitment to service to provide wastewater treatment services shall occur upon
application for a building permit for the project and when system development fees are paid pursuant to
N.C. G.S. §162A, Article 8.
If you have any questions, please call me at [phone], extension 224.
Sincerely,
Chad VonCannon, PE
Engineering Director
cc: Rob Donham, PE/Harrisburg
Stuart A. Woodard, PE/The John R. McAdams Company, Inc.
Michael Wilson/WSACC
Thomas Hahn, PE/WSACC
Mark Lomax/WSACC
Trent Gobble/WSACC

State of North Carolina
DANMWPN�WR
Department of Environmental Quality
Division of Water Resources
Flow Tracking for Sewer Extension Applications
DIv Islan of Water, Resources (FTSE-10/18)
(WSACC USE ONLY) Commons at Farmington
Section I. Name of wastewater treatment facility (WWTF) receiving wastewater:
® Rocky River Wastewater Treatment Facility — Permit #NC0036269
❑ Muddy Creek Wastewater Treatment Facility — Permit #NC0081621
WWTP facility's permitted flow, MGD 26.500
Estimated obligated flow not yet tributary to the WWTP, MGD 4.288
WWTP facility's actual avg daily flow, MGD 19.911 (75.13% of permit)
Total flow for this specific request, MGD 0.062
Total actual and obligated flows to the facility, MGD 24.261
Percent of permitted flow used 91.55%
Section II. Pump stations along the route from the Jurisdiction's connection point to the WWTP.
Pump Station
Pump Station
Firm
(A)
Design Average
(E)
Approx. Current
(C)
Obligated, Not Yet
(D) = (B+C)
Total Currant Flow
(E)=(A-D)
Available
(Name or
Permit No.
Capacity *
Daily Flow **
Average Daily
Tributary Dail Flow
ary y
Plus Obligated Flow
�
Capacity ***
Number)
MGD
(Fimilpf)
Flow
MGD
MGD
MGD
MGD
MGD
Lower Rocky
NCO036269
37.000
14.800
12.346
3.751
16.097
-1.297
River PS
* The Firm Capacity (design flow) of any pump station is defined as the maximum pumped now 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 sball be attached for each pump station located between the project connection point and the WWTP where Available
Capacity is < 0.
Section III. WSACC Certification Statement:
I, Chad VonCannon. PE, certify to the best of my knowledge thaf the addition of the volume of wastewater to be permitted in this
project has been evaluated along the route from the connection to the WSACC interceptor 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 Section I
and Section 11 plus all attached planning assessment addendums for which I am the responsible party. Signature of this form Indicates
WSACC's guarantee of capacity for this wastewater flow. Notwithstanding the guarantee of capacity, WSACC does not make a
commitment to service this wastewater flow until a building permit is requested through the Cabarrus County Building Inspections
Department and WSA Ives ant of the System Development Fee.
2�z 0/1ELOtll
MCC's Signing Official Signature Date

CaWASTEWATER FLOW ACCEPTANCE FORM
FOR THE
WATER AND SEWER AUTHORITY OF CABARRUS COUNTY
Jurisdiction Requesting Flow Acceptance: Date:
❑City of Concord ❑City of Kannapolis OTown of Harrisburg ❑Town of Mt. Pleasant
❑Charlotte Mecklenburg Utilities
Project Title, Description, and Number of Lots[Unit: Commons at Farmington, Mined -Use Subdivision, 112
Townhomes & 36 Single -Family
Project Title: Commons at Farmington
Description: Ile proposed development is located off of Rocky River Road within tho proposed Farmington
Development In the ']'own of Earrisburg. 'rile site will be located at the north -cost earner of the proposed intersection of
pnrmin gtog_n Ridge Parkway and Clear Creek Lane The groposed development will Include the construoton of 112
townhomes and 36 single-flmily residential -lots and the associated public strects and utilities.
*Number of Lots: 148 OR *Number of Units: *Must be included in request.
Where will the new line be connected:
❑ Directly Into a WSACC Interceptor
® Into the Jurisdiction's existing collection system
❑ Into a private line
Describe the location of the tie-in line to which the new sewer line will connect:One sanitary-sower outfall is proposed
to eonnect to an existing sewer trunk located adjacent to Fuda Creek on the proposed.develooment's property.
Which WSACC Interceptor will the flow ultimately be discharged into: Fuda Creek
What is the WSACC manhole number that the flow will be discharged into? 012771 (From Farmington)
What is the quantity of flow that will be discharged? 61,920 OPD
Flow type:
® Domestic 100 ❑ Commercial % ❑ Industrial %
Name of wastewater treatment facility (WWTF) receiving wastewater:
❑ Rocky River Wastewater Treatment Facility — Permit #NC0036269
❑ Muddy Creek Wastewater Treatment Facility — Permit #NC0081621
Design drawings of new lines will be submitted to WSACC with the request for acceptance. Drawings can be submitted
as a digital file (DWG) or distance and bearing starting with the tap on existing infl-astrueture.
If the new line is to connect directly into a WSACC interceptor, detailed drawings including specification of the tap, will
be required before flow acceptance will be provided.
Mark Lomax at 704-786-1783, ext. 231, must be notified 48 hours in advance of a connection into a WSACC interceptor.
WSACC will inspect connection before, during, and after completion.
If construction is not started within two (2) year from the date of approval of the flow acceptance for this project, the
approval is rescinded and a second request and approval will be required for the project.
WSACC USE ONLY: DATE:
❑ Current sewer model shows an Interceptor as being surcharged south of the manhole in question.
❑ Approved El Not Approved
❑ Current Sewer Model shows:•rrT R 'e—ES1__ I-At4(_l r jN

PLANNING ASSESSMEI T ADDENDUM (PAA)
Submit a planning assessment addendum for each pump static listed in Section II where Available Capacity is < 0.
Pump Station (Name or Number): Lower Rocky River Pump Station
Given that:
a. The proportion and amount of Obligated, Not Yet Tfibutary Daily Flow (C) accounts for 23.3% and 3.751 MGD of
the committed flow in the Lower Rocky River Pump, Station; and that
b. The rate of activation of this obligated, not yet tributary capacity is currently approximately
1.806 MGD per year (please see second paragraph below); and that
c. A funded Capital Project that will provide the required planned capacity, namely Lower Rocky River Pump Station
Expansion is in design or under construction with planned completion in December 2021; and/or
d. The following applies:
Per guidance from Town of Harrisburg and the developer, it is expected that the Commons at Farmington project
will be constructed and certified by October 2025, and p phased build -out is proposed for this project.
I '
WSACC has been working with Brown and Caldwell since February 2020 to study an expansion of the Rocky River
Regional WWTP, which includes study of expansion for the Lower Rocky River Pump Station. The Lower Rocky
River Pump Station currently includes four pumps, with space available for two additional pumps and associated
piping. WSACC plans to initiate formal design in Stember 2020 for implementation of additional pumping
capacity at the Lower Rocky River Pump Station. given that space is already available for two additional pumps,
and that some associated piping is already in place, WSACC currently anticipates that design and construction for
Implementing additional capacity at the Lower Rocicy River Pump Station can be completed by the end of 2021.
Based on recent analyses by Brown and Caldwell, WSACC expect9 that the firm capacity of the upgraded Lower
Rocky River Pump Station will be around 53.3 MGD, meaning that WSACC expects the O'design average daily flow"
of the upgraded Lower Rocky River Pump Station 'will be around 21.3 MGD.
Based on flow trends so far in 2020, WSACC expects the overall 2020 annual average rate of activation for obligated,
not yet tributary capacity to be lower than the 1.80q MGD per year indicated above(from calendar year 2019). The
increase in flow at the Lower Rocky River Pump Station in calendar year 2019 was heavily influenced by significant
and persistent rainfall events. The year-to-date average flow for 2020 is approximately 11.2 MGD, much lower than
the 12.346 MGD annual average from 2019, which Nyas heavily influenced by the referenced rainfall events. With the
combination of lower actual flows so far In 2020 and an expected lower rate of activation for obligated, not yet
tributary flows relative to the values experienced InA019, WSACC does not currently anticipate issues with design
capacity at the Lower Rocky River Pump Station p for to completion of the planned capacity upgrades at the Lower
Rocky River Pump Station.
Finally, WSACC Is also working with a consulting engineer on desigh and related work for the Back Creek
Interceptor Improvements project. Completion of construction for the Back Creels Interceptor Improvements
project is expected In early 2022 (after the expansion of the Lower Rocky River Pump Station is complete), and will
result in an additional 1.1 MGD of wastewater flow from Charlotte Water conveyed to the WSACC system, which
will lead to additional flow at the Lower Rocky River Pump Station. NC DEQ has issued a permit for the Back
Creels Interceptor Improvements Project, and included on that permit a stipulation that, prior to any flow being
tributary from the Back Creels Interceptor Improvgments Project, the planned capacity upgrades at the Lower
Riv
er ver Pump Station must be completed and ertified.
Therefore:
Given reasonably expected conditions and planning information, there is sufficient justification to allow this flow
to be permitted, without a significant likelihood of over: allocating capacity in the system infrastructure.
I understand that this does not relieve the collection system owner from complying with G.S. 143- 215.67(a) which
prohibits the introductionofany wasteinexcess -of the capacity of the waste disposal system.
Signing Official Signature
PagE 3:of 6
Date
FTSE 10-18