WQ0044541_More Information (Received)_20230912

TRANSMITTAL I Print Form
Date:
Deliver To
ATTENTION:
COMPANY
ADDRESS
CITY, STATE, ZIP
Phone:
RECEIVE® 'yW_1
09/11/2023 EP 12 20B
YARBROUGH-WILLIAMS & HOULE, INC.
Planning • Surveying • Engineering
NCDEQ/DWR/NPDES
H. Dale Crisp, PE
NCDEQ/DWR-WQ Permitting -Wastewater Branch-PERCS Unit
512 N. Salisbury Street, Suite 925
Raleigh, NC 27604
Yarbrough - Williams & Houle, Inc.
P.O. Box 1198
Pineville, NC 28134
Phone:[phone] Fax [phone]
www.y-wh.com
Project: Haymarket Road and Coral Valley Road W00044541
Copies
Date
No.
Description
1
Response to Comments
1
Cover Letter
1
FTSE and Flow Acceptance - Updated
2
Vicinity Maps - Updated
2
Engineering Plans - updated to add permit number
1
Emails b/w Charlotte Water on comments
THESE ARE TRANSMITTED AS CHECKED BELOW:
For Approval
Approved as Submitted
Resubmit copies for approval
For Your Use
Approved as noted
Submit copies for distribution
As Requested
Returned for corrections
Return corrected prints
For Review and Comment
REMARKS:
Please let me know if you need anything else or have any questions. I have sent you a DropBox link through email
with the revised documents. The calculations or design did not change.
Contact: [e-mail]
��Zwtzaw

RECEIVED
RESPONSE TO COMMENTS: WQ0044541
S F P i 2 J"':i
1. The sewer flow reduction approval letter you included, dated Fe r 3 1 �hr t S
grants approval for use of 190 gpd per dwelling unit for single
to all of the Charlotte Water (CW) wastewater treatment facilities. This project proposes to
serve existing homes located on Mountain Island Lake, not previously served by CW nor
developed under their standards. Please verify that the homes to be served by this project have
been evaluated and the 190 gpd / DU design sewer flow rate is appropriate or provide a revised
design sewer flowrate.
USE and supporting documentation has been revised to show 190 GPD. The existing
low pressure sewer which this project ties into was permitted at 190 GPD under
CLTWater's standards. CLTWater evaluated the flows in these areas, and 190 GPD has
been shown to work.
The permit application for this LPSS project requests approval of 1,710 gpd based on the 190
gpd/ dwelling unit / lot @ 9 lots, each with an existing single family dwelling unit. However, in
reviewing supplemental documents, engineering plans and specs included in this application
package, there are references to 10 lots to be served by this LPSS extension and differing
flowrates such as 2,400 gpd. Please address the inconsistencies listed below in the application
package and provide revised documents, to reflect the correct number of lots to be served and
the associated correct flowrate.
FTSE and information provided by CLTWater for this project has been revised to reflect
the 9 lots at 190 GPD. The original USE provided accounted for a lot that already has a
low pressure service that was provided in a previous extension. The daily flowrate was
revised to 190 GPD on all supplemental documentation as approved in the sewer flow
reduction letter.
- The topo map and the vicinity map and the engineering plans in the application package
indicate 10 lots are to be served including lot A23. The LP Lot summary tables shown on the
engineering plan sheets 3 of 6 and 4 of 6 only total 9 lots to be served with lot A23 not
included in the table on sheet 4 of 6.
• Lot A23 has already been served with low pressure as part of a previous extension.
Vicinity and topo map has been revised to remove A23.
- The flow acceptance letter from Charlotte Water dated 5/2/23 indicates 10 lots to be served
at 240 gpd per dwelling unit or lot.
• FTSE and flow acceptance letter was revised by CLTWater to show 9 lots at 190 GPD to
match plans.
- Appendix #3 that is included in both the LPS Detailed Specs and LPS/CW Customer Info.
Booklets indicate 9 lots to be served.
• 9 lots is correct in the plans.
- Modeling information must be clarified to indicate 9 or 10 lots to be served. Also, the
modeling information indicates a C factor of 140 being used. While an "initial installation" C
factor of 140 is acceptable, an "end of service" C factor of 120 is also required for
evaluation.

• Per the attached email with Jason Jarrett and Jason Marshall, you stated that the 120 vs.
140 C factor would not be an issue in holding up plan review/approvals. A C factor of
140 has been used in all CLTWater low pressure extensions.
The Flow Tracking for Sewer Extension application (FTSE) indicates on line I.f. a flowrate of
2,400 gpd and in column II.(C) "Obligated, Not Yet Tributary Daily Flow, MGD" of 2,700 GPD
for the Mountain Isle Sewer Pump Station. Please clarify.
• USE has been revised by CLTWater to reflect the plans.
The FTSE Planning Assessment Addendum dated 5/2/2023 page 3 of 6 refers to a substantial
completion date of March 2023 for the Paw Creek SPS to be upgraded to a firm pumping
capacity of 20 MGD, which would eliminate the negative "Available Capacity" issue for the
Paw Creek Pump Station on page 1 of 6 of the FTSE. Since this date is in the past, please
clarify and revise the USE as appropriate.
• Dates have been revised per updated construction schedule
Specs page XVIII-1 paragraph (A)(1) states pumps TDH not to exceed 100 feet. Modeling
results in Design Calculations and other tables in the supporting documents indicate all the
proposed lots to be served require pump TDH greater than 100 feet and up to 159.5 feet.
Please clarify.
• The 100' maximum TDH is an outdated specification. A majority of grinder pumps used
around the lake have pump head capabilities over 200', and are needed in areas with
significant elevation changes to the nearest gravity main. CLTWater understands this,
and does not have an issue with pumps over 100 TDH. They are also finalizing revisions
to their current LPSS manual to state "Hydraulic Calculations shall demonstrate pumps
selected are capable of meeting TDH conditions at any proposed or potential grinder
pump location". See attached email from CLTWater stating no issue with over 100' TDH.
There is no Duke Energy Power Outage information for the location of the proposed project
provided to support the power reliability storage information in Appendix #2
• Per Section VII. (5), Duke Power Outage history is not required when providing 24 hour
storage above the pump on elevation. Since there is 24 hour storage in the wetwell with
12" of freeboard, we have never been required to provide power outage history.
A response to the above comments is considered required in order to proceed with the review of the
application and issuance of the permit. If a complete response is not received within 30 days, the
application and supporting documents will be returned to you in accordance with 15A NCAC
02T.0107(e)(2).
Please feel free to provide digital copies of these revised documents and supporting information to me
via email along with hardcopies via mail. Please let me know if you have any questions. Dale
Thanks,
Kendall Godfrey, PE
Yarbrough -Williams & Houle, Inc.

YARBROUGH-WILLIAMS & HOULE, INC.
Planning • Surveying • Engineering
NCBELS C-0475
09/08/23 SC COA332
Dale Crisp
NCDEQ/ DWR
Water Quality Section
PERCS Unit
512 N. Salisbury St., Suite 925
Raleigh, North Carolina 27604
Re: Haymarket Road and Coral Valley Road — WQ0044541
Low Pressure Sanitary Sewer Application — 2"d Submittal
Charlotte Water Project Number DNC-60-22-267
The enclosed submittal package for the referenced project consists of a proposed low pressure sanitary
sewer system to serve 9 single family lots. The purpose of this project is to serve an applicant at 12317
Haymarket Road and all remaining lots on Haymarket Road and Coral Valley Road. The collection and
disposal system will be a public system owned and operated by Charlotte Water. This extension is part
of Charlotte Water's extension policy (Chapter 3 of the approved Charlotte Water Design). Charlotte
Water has agreed to accept the flow generated by this sewer extension. The package contains the
following items:
> Cover Letter
Application ASEA 04-16 -2 copies
> Form FTSE 10-18
> Site Maps — 2 copies
o USGS Topographic Map (85'x11")
o Vicinity Map (8.5"x111)
o As -built plans of existing system (11"x17")
Engineering Plans — 2 copies
Detailed Engineering Calculations-2 copies
> Detailed Specifications —2 copies
Charlotte Water Customer Information Brochure — 2 copies
USB Drive with Digital copies
I have sent a DropBox link with the package to your email as well as the hard copies. If you should have
any questions or need additional information, feel free to give me a call.
Sincerely,
Kendall T. Godfrey, PE
Yarbrough -Williams & Houle, Inc.
730 Windsor Oak Court, Charlotte, NC 28273 • P.O. Box 1198, Pineville, NC 28134 • 704.556.1990 9 fax [phone]

t' State of North Carolina
DW
Department of Environmental Quality
Division of Water Resources
Division of Water Resources Flow Tracking for Sewer Extension Applications
(FTSE 10-18)
Entity Requesting Allocation: CLT Water
Project Name for which flow is being requested: 12317 Haymarket Road & 2224 Coral Valley Road
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 wastewaterJlow.
I. 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
Al/flows tire in MGD
c.
WWTP facility's permitted flow
99.00
d.
Estimated obligated flow not yet tributary to the WWTP 16.289
e.
WWTP facility's actual avg. flow
69.225
f.
Total flow for this specific request
0.00171
g.
Total actual and obligated flows to the facility
85.516
h.
Percent of permitted flow used
86.4%
II. Complete this section for each pump station you are responsible for along the route of this proposed
wastewater flow.
List pump stations located between the project connection point and the WWTP:
(A)
(B)
(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 / pf),
Avg. Daily
Daily Flow,
Obligated
Available
Number) No.
MGD
MGD
Flow, MGD
MGD
Flow
Capacity***
Mountain Isle
0.636
0.255
0.105
0.011
0.116
0.139
Long Creek
8.5
3.4
4.634
1.071
5.705
-2.305
Paw Creek
10.7
4.28
5.746
1.119
6.865
-2.585
* 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): LPSS Haymarket Road
Downstream Permit Number: Unknown
Page 1 of 6
FTSE 10-18

III. Certification Statement:
I Ke rl C a n tre l i 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
Digitally signed by Keri Cantrell
Date: 2023.08.28 10:45:05-04'00' 8/28/2023
Adobe Acrobat version: 2023.003.20269
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
16 % and 1.119 MGD of the Available Capacity (E) in Pump Station
Long Creek and Paw Creek ; and that
b. The rate of activation of this obligated, not yet tributary capacity is currently approximately
1.119 MGD per year; and that
c. A funded Capital Project that will provide the required planned capacity, namely
Stowe Regional Water Resource Recovery Facility is in design or under construction with
planned completion in 2026 ; and/or Paw Creek FM Replacement - 2022
d. The following applies: Paw Creek Pump Station Improvements - 2025
Charlotte Water's Capital Improvement Plan has allocated funds for improvements to the Paw Creek Pump Station Improvements and a new Stowe
Regional Water Resource Recovery Facility ("Stowe Regional"). The design plan is for Stowe Regional to use the Long Creek Pump Station (LCPS)
to house the second stage pumps of its influent pump station. In the short tens, LCPS will also continue to house pumps which export flow to Paw Creek PS
("Paw Creek export pumps"). Currently LCPS has 8 MGD of export capacity, which will be increased to 12 MGD (firm) by the 2nd quarter of 2024.
Stowe Regional is under design and expected to come online in early 2026. Before Stowe Regional is brought online, a new headworks and Influent Pumping Station
building will be constructed adjacent to the LCPS, which will house the first stage influent pumps for Stowe and be the Paw Creek export pumps.
Currently, Long Creek and Paw Creek operate as a combined system with the Long Creek pump station able to transfer flows to flow equalization
tanks during peak flow events and then meter out flow to Paw Creek as conditions allow.
Paw Creek Pump Station was awarded a permit on 8/27/2020 to increase firm pumping capacity to 20 MGD. Construction on this project has begun,
and this project is anticipated to be substantially complete March 2025. The Force Main replacement project has been completed.
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
Digitally signed by Keri Cantrell
Date: 2023.08.28 10:45:46-04'00'
Adobe Acrobat version: 2023.003.20269 8/28/2023
Date
Page 3 of 6
FTSE 10-18

CHARLOTTE
Wt)TER
August 28, 2023
Mr. Jason Marshall
CLT Water
510 Brookshire Blvd.
Charlotte, NC 28216
SUBJECT: WATER AND SEWER FLOW ACCEPTANCE
12317 HAYMARKET ROAD & 224 CORAL VALLEY ROAD
12317 HAYMARKET RD & 224 CORAL VALLEY RD. CHARLOTTE, NC. 28214
CLTWATER TRACKING# 20232471
After analysis of the sanitary sewer associated with the proposed design of project, 20232471,
12317 HAYMARKET ROAD & 224 CORAL VALLEY ROAD, it was determined that there is
sufficient capacity to accommodate the proposed sewer flow of 1,710 gallons per day (9-lots X
190-gpd/lot) at the connection point(s) indicated on the submitted utility plan for transmission to the
McAlpine Creek Wastewater Treatment Plant; NPDES permit number NC0024970, for treatment.
This acceptance of flow is based upon the existing capacity of the designated publicly owned
treatments works.
Please find the NCDEQ_FTSE document attached
Charlotte Water (CLTWater) agrees to furnish water to the subject project. The water quality to the
subject project is regulated by the State Drinking Water Act Amendments of 1986 and The Water
Supply Management Plan, PWS ID # 0160010 on file with the Public Water Supply Section of
NCDEQ. However, CLTWater cannot guarantee a constant pressure or quality of flow.
The applicant should understand that due to the involvement of other agencies and continuing
growth of the water and sewer system, the ability to provide service for future projects cannot be
guaranteed nor reserved. Connection to the CLTWater and sewer system is accepted on a first
come, first served basis.
The applicant should understand that this letter is not authorization to construct or extend private
water or sewer systems, as the appropriate local or State permits are required prior to construction.
If the appropriate authorization to construct permits are not obtained and construction has not
started within two (2) years of issuance of this flow acceptance, and payment for any service
connections have not been received within two (2) years of issuance of this flow acceptance letter,
this flow acceptance approval shall be rescinded, and a new flow acceptance request must be
made. If you have any questions, please do not hesitate to contact me at [phone].
Sincerely,
Pedro- GatzwrOv,
Pedro Galarreta, BSCE, BBA / Engineering Assistant
CHARLOTTE WATER / charlottewater.org
Charlotte Water 5100 Brookshire Blvd, Charlotte, NC 28216 charlottewater.org
lb operated by the City of Charlotte

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► 001 TDB EM A ku f:�(ZoM G Kendall Godfrey Godfre
From: Marshall, Jason<Jason.Marsha [e-mail]>
Sent: Thursday, September 7, 2023 11:15 AM
-
To: Kendall Godfrey 12 "��?3
Cc: King, Marcus
Subject: RE: [EXT]RE: Haymarket Road and Coral Valley RS MQtPp=[External] FW: [EXT]Charlotte Water -Harbor View RoadLP
application package)
CAUTION' This email originated from outside of Yarbrough -Williams & Houle. Do not click links,
give sensitive information, or open attachments unless verified.
Kendall,
Yes they should approve with the TDH comment below. We are changing our manual to revise that statement per below
and snip from new manual...
1. Hydraulic Calculations demonstrating pumps selected are capable of meeting TDH conditions at any proposed or
potential grinder pump location.
32 7) A hydraulic model of the LPSS system may be used to provide output including the
33 network layout, nodes, actual internal diameter of pipe sizes between nodes,
34 expected velocity and flow in each line segment, and TDH. Manufacturer's software
35 can be utilized; however, the Engineer of Record shall seal the model as to the
36 accuracy of the input and output values. The model shall reflect the use of the
37 appropriate average and peak flows as calculated in Section B, a Hazen -Williams
38 "C" coefficient for the pipe material used, and an allowance for minor losses
39 associated with the network. The model shall account for connections to existing
40 pressure sewer systems and not affect the operation of the existing system (i.e., shut
41 other pumps out),
42
43 a_ A Hazen -Williams "C" coefficient of 130 to 140 may be used for PVC and
44 H DPE.
45
46 b. Hydraulic Calculations shall demonstrate pumps selected are capable of
47 meeting TDH conditions at any proposed or potential grinder pump location.
July 2023 3 Low Pressure Sewer Design
Thanks,
Jason E Marshall, PE
CHARLOTTE WATER
C: 704-534-9398
I

From: Kendall Godfrey <[e-mail]>
Sent: Thursday, September 7, 2023 10:24 AM
To: Marshall, Jason <[e-mail]>
Cc: King, Marcus <[e-mail]>
Subject: [EXT]RE: Haymarket Road and Coral Valley Road LPSS (WQ0044541) (FW: [EXT]RE: [External] FW: [EXT]Charlotte
Water - Harbor View Road LPSS (WQ0044560) permit application package)
EXTERNAL EMAIL: This email originated from the Internet. Do not click any images, links or open any attachments unless you recognize and trust the sender and
know the content is safe. Please click the Phish Alert button to forward the email to Bad.Mail.
Sorry Jason, missed your email the other day. I will get this submitted tomorrow.
The only question I have is are they going to be ok with the 100' TDH comment? I know you are changing the
specifications, but I don't think that has been finalized yet. How would you like to respond on that? Just don't want that
to be the only comment holding up approvals.
Thanks,
Kendall Godfrey, PE
Yarbrough -Williams & Houle, Inc.
730 Windsor Oak Court
Charlotte, North Carolina 28273
P.O. Box 1198
Pineville, North Carolina 28134
Phone [phone] Ext. 111
Mobile [phone]
Fax [phone]
From: Marshall, Jason<Jason.Marsha [e-mail]>
Sent: Thursday, September 7, 2023 10:09 AM
To: Kendall Godfrey <[e-mail]>
Cc: King, Marcus <[e-mail]>
Subject: FW: Haymarket Road and Coral Valley Road LPSS (WQ0044541) (FW: [EXT]RE: [External] FW: [EXT]Charlotte
Water - Harbor View Road LPSS (WQ0044560) permit application package)
CAUTION: This email originated from outside of Yarbrough -Williams & Houle. Do not click links,
give sensitive information, or open attachments unless verified.
Kendal,
Following up on email below... Also, DEQ approved our other submittal so seems like things are moving again.
Thanks,
Jason E Marshall, PE
CHARLOTTE WATER
C: 704-534-9398

From: Marshall, Jason
Sent: Wednesday, August 30, 2023 12:04 PM
To: Kendall Godfrey <[e-mail]>
Cc: King, Marcus <[e-mail]>
Subject: Haymarket Road and Coral Valley Road LPSS (WQ0044541) (FW: [EXT]RE: [External] FW: [EXT]Charlotte Water -
Harbor View Road LPSS (WQ0044560) permit application package)
Hi Kendall,
Please see Dale Crisp response below... and update USE forms attached. Please let me know if there is anything else you
need to resubmit for approval with DEQ. I believe our deadline for response is on Wednesday September 13tn
Thanks,
Jason E Marshall, PE
CHARLOTTE WATER
C: 704-534-9398
From: Crisp, Dale <[e-mail]>
Sent: Monday, August 28, 2023 8:20 PM
To: Jarrett, Jason<[e-mail]>; Marshall, Jason<[e-mail]>
Cc: King, Marcus <[e-mail]>; Lentz, Zac <[e-mail]>; Montebello, Michael J
<[e-mail]>
Subject: [EXT]RE: [External] FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application
package
EXTERNAL EMAIL: This email originated from the Internet. Do not click any images, links or open any attachments unless you recognize and trust the sender and
know the content is safe. Please click the Phish Alert button to forward the email to Bad.Mail.
Thank you Jason J. and Jason M. for your e-mails. I'm going to try to answer your questions in both your a -mails in one
response e-mail.
We have not had any luck at the Division so far in finding an approval letter from DEQ to Charlotte Water (CMUD at the
time in 1995) for approval the design manual and standard specifications for LPSS. The City ordinance you provided does
demonstrate the manual and specifications were anticipated for approval, but does not confirm the same. I understand
CW has a long history and precedent for using only a C factor of 140 for design of LPSS, but the Division's Guidance
Design Criteria recommending a C of 120 for EOS pressure sewers has an equally long history.
If we can satisfactorily resolve the other issues found during review of this subject project and the other projects from
CW recently where the C factor has been questioned, we will move them forward for permitting and not let this issue
alone delay them from proceeding.
I understand from talking today with Zac (Lentz) copied above, that he will be the primary Division contact for review of
the updated CW design manual and standard specifications once submitted for Division review. The EOS design C factor
issue should be addressed and resolved during that review.
Please let me know if there are any further questions. Thanks, Dale.
H. Dale Crisp, PE
Environmental Engineer 11

Municipal Permitting Unit
NC Division of Water Resources
919-707-3603
From: Jarrett, Jason <[e-mail]>
Sent: Monday, August 28, 2023 8:45 AM
To: Crisp, Dale <[e-mail]>
Cc: Marshall, Jason <[e-mail]>; King, Marcus <[e-mail]>
Subject: [External] FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good morning Dale,
I hope you're doing well and had a nice weekend! Jason Marshall has been communicating with you regarding our
similar LPSS comments that you provided on our projects. In response to your 120 "end of service" C factor comment,
the existing LPSS systems that were previously permitted by DEQ, met the requirements and were permitted with
various C factors between 130 —140. These C factors were utilized based on our Design Manual that has been approved
by DEQ. Since the existing LPSS system that we'll be connecting to was previously permitted, utilizing higher C factors, a
lower C factor for the new LPSS system may potentially not achieve 2 f/s. If we were modeling an entirely new LPSS
system that was starting at the discharge gravity MH, it wouldn't necessarily be a concern to utilize a 120 C.
Since our new LPSS systems will be connecting to existing LPSS systems that were previously approved/permitted by
DEQ with C factors between 130-140 (based on our DEQ approved Design Manual), may we omit the additional request
to evaluate the system with a 120 C factor? In addition, the "end of service" 120 C factor appears to be intended for
force mains associated with large singular pumps at our pump stations, and not necessarily LPSS systems with individual
grinder pumps.
Thanks for your consideration! I'd be glad to set up virtual meeting to discuss further, if you would like?
Thanks,
Jason Jarrett, PE / Senior Engineering Project Manager / Design and Construction
CHARLOTTE WATER
5100 Brookshire Blvd., Charlotte, NC 28216
P: 980-666-0470 / charlottewater.orcl
From: Cantrell, Keri <[e-mail]>
Sent: Monday, August 14, 2023 4:41 PM
To: Jarrett, Jason<[e-mail]>; King, Marcus <[e-mail]>
Subject: FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
FYI
Keri B. Cantrell, PhD PE / Chief Engineer- Planning & Land Development
CHARLOTTE WATER
P:704-336-1015 / charlottewater.org

From: Crisp, Dale <[e-mail]>
Sent: Monday, August 14, 2023 4:40 PM
To: Sean Mayo <[e-mail]>
Cc: Cantrell, Keri <[e-mail]>; Lentz, Zac <[e-mail]>; Montebello, Michael J
<[e-mail]>
Subject: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
EXTERNAL EMAIL: This email originated from the Internet. Do not click any images, links or open any attachments unless you recognize and trust the sender and
know the content is safe. Please click the Phish Alert button to forward the email to Bad.Mail.
Sean,
A review of the application and supporting documents for the subject application has been completed in accordance
with 15A NCAC 02T .0107. Please provide the additional or revised information for the following comments, in order
for the office to complete the review:
The sewer flow reduction approval letter you included, dated February 13, 1995 (28 years ago), grants approval
for use of 190 gpd per dwelling unit for single family residential areas tributary to all of the Charlotte Water
(CW) wastewater treatment facilities. This project proposes to serve existing homes located on Lake Wylie, not
previously served by CW nor developed under their standards. Please verify that the homes to be served by this
project have been evaluated and the 190 gpd / DU design sewer flow rate is appropriate or provide a revised
design sewer flowrate.
2. The permit application for this LPSS project requests approval of 1,140 gpd based on the 190 gpd /dwelling unit
/ lot @ 6 lots, each with an existing single family dwelling unit. After reviewing supplemental documents,
engineering plans and specs included in this application package, please address the inconsistencies and issues
listed below in the application package and provide revised documents.
Specs page XVIII-1 paragraph (A)(1) states pumps TDH not to exceed 100 feet. Modeling results in Design
Calculations page 4 and other tables in the supporting documents indicate all the proposed lots to be served
require pump TDH greater than 100 feet and up to 159.5 feet. Please clarify.
Specs page XVIII-1 paragraph (A)(5) indicates a C factor of 140 being used. While an "initial installation" C
factor of 140 is acceptable, an "end of service" C factor of 120 is also required for evaluation. Design
Calculations page 3 indicates a C factor of 130 being used for "aged" PVC pipe. Please revise.
Design Calculations section, the Duke Energy Outage information tables on page 2 & 3 and again under the
Power Reliability Plan section, the units are not labeled for the Outage Duration column. These units appear
to minutes, please clarify.
A response to the above comments is considered required in order to proceed with the review of the application and
issuance of the permit. If a complete response is not received within 30 days, the application and supporting documents
will be returned to you in accordance with 15A NCAC 02T.0107(e)(2).
Please feel free to provide digital copies of these revised documents and supporting information to me via email along
with hardcopies via mail. Please let me know if you have any questions. Dale
H. Dale Crisp, PE
Environmental Engineer II
Municipal Permitting Unit
NC Division of Water Resources
919-707-3603

Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.

VA we Or (Zb/l Wb eftAA 1 G BIW Cj,Tw ATI�Jt
SIC•-Q
Kendall Godfrey
From: Marshall, Jason<Jason.Marsha [e-mail]>
Sent: Wednesday, August 30, 2023 12:04 PM
To: Kendall Godfrey
Cc: King, Marcus
Subject: Haymarket Road and Coral Valley Road LPSS (WQ0044541) (FW: [EXT]RE: [External] FW:
[EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application
package)
Attachments: 230828pg, 20232471, 12317 Haymarket Road & 2224 Coral Valley Road -
DNC-60-22-267, Capacity Assurance Review Letter, USE - FALetter.pdf; Revised -
Signed - 20232471 12317 Haymarket Road 2224 Coral Valley Road McAlpine Creek
WWTP NCDEQ_FTSE10-18_V2.pdf
CAUTION: This email originated from outside of Yarbrough -Williams & Houle. Do not click links,
give sensitive information, or open attachments unless verified.
Hi Kendall,
Please see Dale Crisp response below... and update USE forms attached. Please let me know if there is anything else you
need to resubmit for approval with DEQ. I believe our deadline for response is on Wednesday September 13cn
Thanks,
Jason E Marshall, PE
CHARLOTTE WATER
C: 704-534-9398
From: Crisp, Dale <[e-mail]>
Sent: Monday, August 28, 2023 8:20 PM
To: Jarrett, Jason<[e-mail]>; Marshall, Jason <[e-mail]>
Cc: King, Marcus <[e-mail]>; Lentz, Zac <[e-mail]>; Montebello, Michael J
<[e-mail]>
Subject: [EXT]RE: [External] FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application
package
EXTERNAL EMAIL: This email originated from the Internet. Do not click any images, links or open any attachments unless you recognize and trust the sender and
know the content is safe. Please click the Phish Alert button to forward the email to Bad.Mail.
Thank you Jason J. and Jason M. for your e-mails. I'm going to try to answer your questions in both your a -mails in one
response e-mail.
We have not had any luck at the Division so far in finding an approval letter from DEQ to Charlotte Water (CMUD at the
time in 1995) for approval the design manual and standard specifications for LPSS. The City ordinance you provided does
demonstrate the manual and specifications were anticipated for approval, but does not confirm the same. I understand
CW has a long history and precedent for using only a C factor of 140 for design of LPSS, but the Division's Guidance
Design Criteria recommending a C of 120 for ECIS pressure sewers has an equally long history.

If we can satisfactorily resolve the other issues found during review of this subject project and the other projects from
CW recently where the C factor has been questioned, we will move them forward for permitting and not let this issue
alone delay them from proceeding.
I understand from talking today with Zac (Lentz) copied above, that he will be the primary Division contact for review of
the updated CW design manual and standard specifications once submitted for Division review. The EOS design C factor
issue should be addressed and resolved during that review.
Please let me know if there are any further questions. Thanks, Dale.
H. Dale Crisp, PE
Environmental Engineer 11
Municipal Permitting Unit
NC Division of Water Resources
919-707-3603
From: Jarrett, Jason <[e-mail]>
Sent: Monday, August 28, 2023 8:45 AM
To: Crisp, Dale <[e-mail]>
Cc: Marshall, Jason <[e-mail]>; King, Marcus <[e-mail]>
Subject: [External] FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Good morning Dale,
I hope you're doing well and had a nice weekend! Jason Marshall has been communicating with you regarding our
similar LPSS comments that you provided on our projects. In response to your 120 "end of service" C factor comment,
the existing LPSS systems that were previously permitted by DEQ met the requirements and were permitted with
various C factors between 130 —140. These C factors were utilized based on our Design Manual that has been approved
by DEQ. Since the existing LPSS system that we'll be connecting to was previously permitted, utilizing higher C factors, a
lower C factor for the new LPSS system may potentially not achieve 2 f/s. If we were modeling an entirely new LPSS
system that was starting at the discharge gravity MH, it wouldn't necessarily be a concern to utilize a 120 C.
Since our new LPSS systems will be connecting to existing LPSS systems that were previously approved/permitted by
DEQ with C factors between 130-140 (based on our DEQ approved Design Manual), may we omit the additional request
to evaluate the system with a 120 C factor? In addition, the "end of service" 120 C factor appears to be intended for
force mains associated with large singular pumps at our pump stations, and not necessarily LPSS systems with individual
grinder pumps.
Thanks for your consideration! I'd be glad to set up virtual meeting to discuss further, if you would like?
Thanks,
Jason Jarrett, PE / Senior Engineering Project Manager / Design and Construction
CHARLOTTE WATER
5100 Brookshire Blvd., Charlotte, NC 28216
P: 980-666-0470 / charlottewater.org

From: Cantrell, Keri <[e-mail]>
Sent: Monday, August 14, 2023 4:41 PM
To: Jarrett, Jason <[e-mail]>; King, Marcus <[e-mail]>
Subject: FW: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
FYI
Keri B. Cantrell, PhD PE / Chief Engineer - Planning & Land Development
CHARLOTTE WATER
P:704-336-1015 / charlottewater.orq
From: Crisp, Dale <[e-mail]>
Sent: Monday, August 14, 2023 4:40 PM
To: Sean Mayo <[e-mail]>
Cc: Cantrell, Keri<[e-mail]>; Lentz, Zac <[e-mail]>; Montebello, Michael J
<[e-mail]>
Subject: [EXT]Charlotte Water - Harbor View Road LPSS (WQ0044560) permit application package
EXTERNAL EMAIL: This email originated from the Internet. Do not click any images, links or open any attachments unless you recognize and trust the sender and
know the content is safe. Please click the Phish Alert button to forward the email to Bad.Mail.
Sean,
A review of the application and supporting documents for the subject application has been completed in accordance
with 15A NCAC 02T .0107. Please provide the additional or revised information for the following comments, in order
for the office to complete the review:
The sewer flow reduction approval letter you included, dated February 13, 1995 (28 years ago), grants approval
for use of 190 gpd per dwelling unit for single family residential areas tributary to all of the Charlotte Water
(CW) wastewater treatment facilities. This project proposes to serve existing homes located on Lake Wylie, not
previously served by CW nor developed under their standards. Please verify that the homes to be served by this
project have been evaluated and the 190 gpd / DU design sewer flow rate is appropriate or provide a revised
design sewer flowrate.
2. The permit application for this LPSS project requests approval of 1,140 gpd based on the 190 gpd /dwelling unit
/ lot @ 6 lots, each with an existing single family dwelling unit. After reviewing supplemental documents,
engineering plans and specs included in this application package, please address the inconsistencies and issues
listed below in the application package and provide revised documents.
Specs page XVIII-1 paragraph (A)(1) states pumps TDH not to exceed 100 feet. Modeling results in Design
Calculations page 4 and other tables in the supporting documents indicate all the proposed lots to be served
require pump TDH greater than 100 feet and up to 159.5 feet. Please clarify.
Specs page XVIII-1 paragraph (A)(5) indicates a C factor of 140 being used. While an "initial installation" C
factor of 140 is acceptable, an "end of service" C factor of 120 is also required for evaluation. Design
Calculations page 3 indicates a C factor of 130 being used for "aged" PVC pipe. Please revise.
Design Calculations section, the Duke Energy Outage information tables on page 2 & 3 and again under the
Power Reliability Plan section, the units are not labeled for the Outage Duration column. These units appear
to minutes, please clarify.

A response to the above comments is considered required in order to proceed with the review of the application and
issuance of the permit. If a complete response is not received within 30 days, the application and supporting documents
will be returned to you in accordance with 15A NCAC 02T.0107(e)(2).
Please feel free to provide digital copies of these revised documents and supporting information to me via email along
with hardcopies via mail. Please let me know if you have any questions. Dale
H. Dale Crisp, PE
Environmental Engineer II
Municipal Permitting Unit
NC Division of Water Resources
919-707-3603
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.
4