WQ0041623_Application (FTSE)_20200415 (2)

QWR
Division of Water Resources
Entity Requesting Allocation:
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Flow Tracking for Sewer Extension Applications
(FTSE 10-18)
Bohler Engineering
Project Name for which flow is being requested: Northlake West Mixed Use - B (Retail)
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.
L Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility Name: McAlpine Creek, Irwin Creek, Sugar Creek
b. WWTP Facility Permit #: NC0024970, NC0024945, NCO024937
All flows are in MGD
c. WWTP facility's permitted flow 99.00
d. Estimated obligated flow not yet tributary to the WWTP 11.95
e. WWTP facility's actual avg. flow 72.62
f. Total flow for this specific request 0.0006
g. Total actual and obligated flows to the facility 84.58
h. Percent of permitted flow used 85.4
I1. 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)
(C)
(D)=(B+C)
(E)=(A-D)
Design
Obligated,
Pump Pump
Average
Approx.
Not Yet
Total Current
Station Station
Firm
Daily Flow**
Current
Tributary
Flow Plus
(Name or Permit
Capacity, *
(Firm / p f),
Avg. Daily
Daily Flow,
Obligated
Available
Number) No.
MGD
MGD
Flow, MGD
MGD
Flow
Capacity***
Long Creek
8.3
3.64
4.73
.64
5.3
-2.05
Paw Creek
10.3
4.12
5.89
.917
6.82
-2.69
* 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): Vance Road Sanitary Sewer Trunk
Downstream Permit Number: Unknown
Page 1 of 6
FTSE 10-18

III. Certification Statement:
I Keri Cantrell
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.
Signing Official Signature
Chief Engineer
Title of Signing Official
3/30/2020
Date
Page 2 of 6
FTSE 10-18

PLANNING ASSESSMENT ADDENDUM (PAA)
Submit a planning assessment addendum for each pump station listed in Section II where Available Capacity is <
0.
Pump Station (Name or Number):
Given that:
a. The proportion and amount of Obligated, Not Yet Tributary Daily Flow (C) accounts for
13.5 % and 0.917 MGD of the Available Capacity (E) in Pump Station
193
; and that
The rate of activation of this obligated, not yet tributary capacity is currently approximately
0.917 MGD per year; and that
A funded Capital Project that will provide the required planned capacity, namely
Long Creek EQ Basin and Paw Creek Forcemain Replacement is in design or under construction with
planned completion in Long Creek EQ Basin - Complete ; and/or
d. The following applies:
Charlotte Water's Community Investment Plan has allocated funds for improvements to the Paw
Creek force main and a five -million gallon EQ basin at Long Creek Pump Station. Long Creek
and Paw Creek pump stations operate as a system using SCADA data to determine the rate of
flow delivered from the upstream pump station, Long Creek, to Paw Creek the downstream
facility. Long Creek pump station has the ability to transfer flows to flow equalization
tanks during peak flow events and then meter out flow to Paw Creek as flow conditions allow.
In addition, the basins for both stations are large and result in a daily peaking factor of
2.06 at Paw Creek Pump Station, which allows the stations to operate safely at flows greater
than 40% of the firm pumping capacity.
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 introduction of any waste in excess of the capacity of the waste disposal
system.
Signing Official Signature
3/30/2020
Date
Page 3 of 6
FTSE 10-18

Instructions for Flow Tracking form (FTSE) and Planning Assessment Addendum (PAA)
Section I
a. WWTP Facility Name: Enter the name of the WWTP that will receive the wastewater flow.
b. WWTP Facility Permit #: Enter the NPDES or Non -Discharge number for the WWTP receiving the
wastewater flow.
c. WWTP facility's permitted flow, MGD: From WWTP owner's NPDES or Non -Discharge permit.
d. Estimated obligated flow not vet tributary to the WWTP, MGD: This includes flows allocated to other
construction projects not yet contributing flow to the collection system. Flows allocated through interlocal
agreements or other contracts not yet contributing flow to the collection system are also included. For
POTWs that implement a pretreatment program, include flows allocated to industrial users who may not be
using all of their flow allocation. Please contact your Pretreatment Coordinator for information on industrial
flow tributary to your WWTP.
As of January 15, 2008 the POTW should have reviewed flow allocations made over the last two years and
reconciled their flow records, to the best of their ability, so it is known how much flow has been obligated and
is not yet been made tributary to the WWTP, in accordance with local policies and procedures employed by
the reporting entity.
e. WWTP facility's actual avg. flow, MGD: Previous 12 month average.
£ Total flow for this specific request, MGD: Enter the requested flow volume.
g. Total actual and obligated flows to the facilitX, MGD Equals [d + e + f]
h. Percent of permitted flow used: Equals [(g / c) * 100]
For example:
On January 15 a POTW with a permitted flow of 6.0 MGD, reported to the Regional Office that there is 0.5
MGD of flow that is obligated but not yet tributary. The annual average flow for 2007 is 2.7 MGD. There is a
proposed flow expansion of 0.015 MGD.
The first Form FTSE submitted after January 15, 2008 may have numbers like this:
c. = 6.0 MGD
d. = 0.5 MGD
e. = 2.7 MGD
£ = 0.015 MGD
g. = 3.215 MGD
h. = 53.6 %
The next Form FTSE may be updated like this with a proposed flow expansion of 0.102 MGD:
c. = 6.0 MGD
d. = 0.515 MGD
e. = 2.73 MGD
£ = 0.102 MGD
g. = 3.349 MGD
h. = 55.8 %
Each subsequent FTSE form will be updated in the same manner.
Page 4 of 6
FTSE 10-18

Section II
List the pump station name or number and approximate pump station firm capacity, approximate design average
daily flow (A) approximate current average daily flow (B), and the obligated, not yet tributary flow through the
pump station (C) for each pump station that will be impacted by the proposed sewer extension project. Calculate
the total current flow plus obligated flow (D=B+C) and the available capacity (E=A-D). Include the proposed
flow for this project with other obligated flows that have been approved for the pump station but are not yet
tributary (C).
Firm capacity is the maximum pumped flow that can be achieved with the largest pump out of service as per the
Minimum Design Criteria.
Design Average Daily Flow is the firm capacity of the pump station divided by a peaking factor (pf) of not less
than 2.5.
If the available capacity (E) for any pump station is < 0, then prepare a planning assessment for that pump station
if the system has future specific plans related to capacity that should be considered in the permitting process.
(A)
(B)
(C)
(D)=(B+C)
(E)=(A-D)
Obligated,
Design
Approx.
Not Yet
Total Current
Firm
Average
Current Avg.
Tributary
Flow Plus
Pump Station
Capacity
Daily Flow
Daily Flow,
Daily Flow,
Obligated
Available
(Name or Number)
MGD
(Firm / pf)
MGD
MGD
Flow
Capacity*
Kaw Creek PS
0.800
0.320
0.252
0.080
0.332
-0.012
Valley Road PS
1.895
0.758
0.472
0.135
0.607
0.151
Page 5 of 6
FTSE 10-18

Planning Assessment Addendum Instructions
Submit a planning assessment addendum for each pump station listed in Section II where available capacity is <
0.
A planning assessment for Kaw Creek PS (see example data above) may be performed to evaluate whether there
is significant likelihood that needed improvements or reductions in obligated flows will be in place prior to
activating the flows from the proposed sewer extension project.
If the system decides to accept the flow based on a planning assessment addendum, it is responsible to manage the
flow without capacity related sanitary overflows and must take all steps necessary to complete the project or
control the rate of flow to prevent sanitary sewer overflows.
The planning assessment may identify a funded project currently in design or construction, or a planned project in
the future not yet funded but in a formal plan adopted by the system. The system should carefully weigh the
certainty of successful timely project completion for any expansion, flow management diversion or infiltration
and inflow elimination projects that are the foundation of a planned solution to capacity tracking and acceptance
compliance.
For example:
Given that:
a. The proportion and amount of obligated, not yet tributary flow accounts for 24 % and 0.080 MGD of the
committed flow in Pump Station Kaw Creek; and that
b. The rate of activation of this obligated, not yet tributary capacity is currently approximately 0.01 MGD
per year; and that
c. A funded capital project that will provide the required planned capacity, namely
is in design or under construction with planned
completion in ; and/or
d. The following applies:
The master plan and ten ,year capital plan contain recommended scope and funding for a capital project entitled
Kaw Creek Pump Station upgrade with funding planned in July 2014. This project is planned to add 0.100 MGD
to the firm capaci , of the pump station by October 2015. Inclusion of this proposed capital project as a condition
of this Flow Tracking/Acceptance for Sewer Extension Permit Application elevates this project's priori , for
funding and construction to be implemented ahead of the activation of obligated, not yet tributary flows in
amounts that exceed the firm pump station capacities identified in Section II above.
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.
Page 6 of 6
FTSE 10-18