WQ0042775_Application Attachment_20211006 (2)

WSACC
WATER & SEWER AUTHORITY
OF CABARRUS COUNTY
ISO 14001:2015 • NC Star Public Sector • OHSAS 18001:2007
February 26, 2020
Mr. Guillermo Anzola
Engineering Assistant
Charlotte Water
5100 Brookshire Blvd
Charlotte, NC 28216
Subject: Flow Acceptance Request
Robinson Charter School
Charlotte Water Project Number 2020629
Dear Mr. Anzola:
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 Charlotte Water on February 24, 2020.
WSACC has or will have capacity at the Rocky River Regional Wastewater Treatment Plant and
appropriate sewer interceptors to transport and treat the commercial wastewater from the proposed
project entitled Robinson Charter School. The referenced project will serve a school with 550 students,
with a projected wastewater flow of 6,600 gallons per day (gpd). The wastewater generated by this
project will be conveyed through a proposed gravity system, through an existing gravity system, and
then enter WSACC's system at the existing 36-inch Reedy Creek Interceptor.
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notice is rescinded and a second request and notice will be required before flow capacity is accepted.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.
If you have any questions, please call me at [phone], extension 104.
Sincerely,
s r
"J. Thomas Hahn, PE
Assistant Engineering Director
cc: Keri Cantrell, PE/Charlotte Water
Michael Wilson/WSACC
Chad VonCannon, PE/WSACC
Mark Lomax/WSACC
Trent Gobble/WSACC

WASTEWATER FLOW ACCEPTANCE FORM
FOR THE
WATER AND SEWER AUTHORITY OF CABARRUS COUNTY
Jurisdiction Requesting Flow Acceptance:
CCity of Concord ❑City of Kannapolis III Town of Harrisburg Town of Mt. Pleasant
®Charlotte Water
Project Title, Description, and Number of Lots/Unit:
Project Title: Robinson Charter School — Project # 2020629
Description: The Robinson Charter School engineering plans and specifications, as prepared and sealed by Douglas K.
Draffen NCPE, with McKim & Creed foi wastewater sewer laterals to serve Robinson Charter School located on
8000 Robinson Church Road in Charlotte, NC, with a wastewater discharge of 6,600 GPD.
*Number of Lots: OR *Number of Units: 550 students x 12 gpd/student. *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
■
■
Date: 02/04/2020
Describe the location of the tie-in line to which the new sewer line will connect: The proposed sewer laterals will tie-
in to the existing 8-inch sanitary sewer system, which extends to the 36-inch RCP material WSACC Upper Ready Creek
Interceptor.
Which WSACC Interceptor will the flow ultimately be discharged into: 36-inch RCP WSACC Upper Ready Creek
Interceptor
What is the WSACC manhole number that the flow will be discharged into? 019102
What is the quantity of flow that will be discharged? 6,600 GPD
Flow type:
❑ Domestic % Commercial 100 % ❑ 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 infrastructure.
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.
OA
WSACC USE ONLY:
DATE: ALI
❑ Current sewer model shows an Interceptor as being surcharged south of the manhole in question.
[� ApproveM 6r 44Nr.) ❑ Not Approved
❑ Current Sewer Model shows: .gwl=rcir.'N(' t<kC"GSA (APA6_riar rue- t Gera) C Attouai
1?COft.t' AT A . AG Dt 4LY Fs' taw CI•c)'s t 0 .%)S

DWI It
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)
(WSACC USE ONLY) Robinson Charter School (Charlotte Water Project No.
2020629)
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 2.235
WWTP facility's actual avg. daily flow, MGD 19.911 (75.14% of permit)
Total flow for this specific request, MGD
0.007
Total actual and obligated flows to the facility, MGD
Percent of permitted flow used
22.153
83.60%
Section II. Pump stations along the route from the Jurisdiction's connection point to the WWTP.
Pump
(Name
Number)
Station
or
Pump
Permit
StationTotal
No.
Capacity
Firm
MGD
Design
Daily
(Firm/pf)
(A)
MGD
Average
Flow
**
Approx.
Average
Flow
MGD
(B)
Current
Daily
Obligated,
Tributary
Flow
MGD
(C)
Not
Daily
Yet
=
Plus
(D)
ObMGDd
Current
(B+C)
Flow
Flow
(
Capacity***
E
)
Available
=
MGD
(
A-D
)
Reedy
PS
Creek
WQCS00009
16.500
6.600
1.835
0.468
2.303
4.297
Lower
River
Rocky
PS
NC0036269
37.000
14.800
12.346
1.752
14.098
0.702
*
**Design
Design
***A
Capacity
The
Firm
Planning
Criteria.
Average
is
Capacity
<
0.
Assessment
Daily
(design
Flow
Addendum
flow)
is
the
of
firm
any
shall
capacity
pump
be
attached
station
of
the
is
pump
for
defined
each
station
as
pump
the
divided
station
maximum
by
located
a
pumped
peaking
between
factor
flow
the
that
(pf)
project
can
not
be
less
connection
achieved
than
2.5,
with
point
per
the
Section
and
largest
the
pump
2.02(A)(4)(c)
WWTP
taken
where
of
out
the
Available
of
Minimum
service.
Section III. WSACC Certification Statement:
I, J. Thomas Hahn, 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 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 II 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.
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W CC's Signing Official Signature Da