WQ0032985_Regional Office Historical File Pre 2018

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen 11. Sullins, Director
Division of Water Quality
May 14, 2008
Mr. Barry Shearin, Chief Engineer
Charlotte Mecklenburg Utilities
5100 Brookshire Blvd.
Charlotte, NC 28216
Subject: Permit No. WQ0032985
Griffith St. Pump Station Modifications
Wastewater Collection System -Extension
Mecklenburg County, North Carolina
Dear Mr. Shearin,
In accordance with your application received on April 25, 2008, we are forwarding herewith
Permit No. W00032985, dated May 14, 2008, to Charlotte Mecklenburg Utilities for the construction
and operation of the subject wastewater collection system extension. This permit shall be effective from
the date of issuance until rescinded, and shall be subject to the conditions and limitations as specified
therein. This cover letter shall be considered a part of this permit and is therefore incorporated therein
by reference.
Please pay particular attention to Permit Condition 3 which requires that the wastewater
collection facilities be properly operated and maintained in accordance with 15A NCAC 2T .0403'or any
individual system -wide collection system permit issued to the Permittee.
Permitting of this project does not constitute an acceptance of any part of the project that does
not meet 1) 15A NCAC 2T; 2) the Division of Water Quality's (Division) Gravity Sewer Minimum Design
Criteria adopted February 12, 1996, as applicable; 3) and the Division's Minimum Design Criteria for
the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000, as applicable,
unless specifically mentioned herein. Division approval is based on acceptance of the certification
provided by a North Carolina -licensed Professional Engineer in the application. It shall be the
Permittee's responsibility to ensure that the as -constructed project meets the appropriate design criteria
and rules. Failure to comply may result in penalties in accordance with North Carolina General Statute
§143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection
facilities, and/or referral of the North Carolina -licensed Professional Engineer to the licensing board. •
Mooresville Regional Office 610 East Center Ave., Suite 301 Mooresville, NC 28115 Phone: [phone] Fax: [phone]
Internet: www.ncmwaterquality.org Customer Service: 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper
On
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NCarolina
ur'afllf

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Mr. Shearin
Rage 2
May 13, 2008
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations, permission is hereby
granted for the construction and operation of approximately 28 linear feet of 18-inch gravity sewer, 25
linear feet of 8-inch gravity sewer , a 1,850 gallon per minute pump stations (with duplex pumps, on -site
audible and visual high water alarm, and a permanent on -site generator with automatic transfer
switch),and the discharge of 0 gallons per day of collected domestic wastewater into the Charlotte
Mecklenburg Utilities existing sewerage system in conformity with 15A NCAC 2T; the Division's Gravity
Sewer Minimum Design Criteria adopted February 12, 1996,-as applicable; the Division's Minimum
Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000,
as applicable; and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources and considered a part of this permit.
The sewage and wastewater collected by this system shall be treated in the Charlotte
Mecklenburg Utilities WWTP (McAlpine Creek NPDES No. NC0024970) prior to being discharged into
the receiving stream.
t
Assessing subsequent impacts to the downstream collection system and treatment facility is
the complete responsibility of Charlotte Mecklenburg Utilities. Charlotte Mecklenburg Utilities must
utilize whatever tracking tools necessary for planning additions of sewer flow in order to maintain
compliance with the WWTP permitted limits and the WQCS00001 permit requirements.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the
right to request an adjudicatory hearing upon written request within 30 days following receipt of this
permit. This request must be in the form of a written petition, conforming to Chapter 150E of North
Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service
Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and
binding.
If you need additional information concerning this matter, please contact Dee Browder at (704)
663-1699.
Sincerely,
for Coleen H. Sullins
cc: Mecklenburg County Land Use and Environmental Services Agency (LUESA)
Steve Miller, CMU
Philip Edward, Mecklenburg County
Mooresville Regional Office, Collection System Permit File
Charles Shue, McKim & Creed
Surface Water Protection Central Files
PERCS

NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
RALEIGH
WASTEWATER COLLECTION SYSTEM EXTENSION PERMIT
This permit shall be effective from the date of issuance until rescinded and shall be subject to the
following specified conditions and limitations:
1. This permit shall become voidable unless the wastewater collection facilities are constructed in
accordance with the conditions of this permit; 15A NCAC 2T; the Division of Water Quality's
(Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996, as applicable; the
Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force
Mains adopted June 1, 2000, as applicable; and other supporting materials unless specifically
mentioned herein.
2. This permit shall be effective only with respect to the nature and volume of wastes described in the
application and other supporting data.
3. The wastewater collection facilities shall be properly maintained and operated at all times. The
Permittee shall maintain compliance with an individual system -wide collection system permit for the
operation and maintenance of these facilities as required by 15A NCAC 2T .0403. If an individual
permit is not required, the following performance criteria shall be met as provided in 15A NCAC 2T
0403:
a. The sewer system shall be effectively maintained and operated at all times to prevent
discharge to land or surface waters, and any contravention of the groundwater standards in
15A NCAC 2L .0200 or the surface water standards in 15A NCAC 28 .0200.
b. A map of the sewer system shall be developed and shall be actively maintained.
c. An operation and maintenance plan shall be developed and implemented.
d. Pump stations that are not connected to a telemetry system shall be inspected every day (i.e.
365 days per year). Pump stations that are connected to a telemetry system shall be
inspected at least once per week.
e. High -priority sewer lines shall be inspected at least once per every six-month period of time.
f. A general observation of the entire sewer system shall be conducted at least once per year.
g. Inspection and maintenance records shall be maintained for a period of at least three years.
h. Overflows and bypasses shall be reported to the appropriate Division regional office in
accordance with 15A NCAC 2B .0506(a), and public notice shall be provided as required by
North Carolina General Statute §143-215.1C.
1

Pr.
4. This permit shall not be transferable. In the event there is a desire for the wastewater collection
facilities to change ownership, or there is a name change of the Permittee, a formal permit request
shall be submitted to the Division accompanied by documentation from the parties involved, and
other supporting materials as may be appropriate. The approval of this request shall be
considered on its merits and may or may not be approved.
5 Construction of the gravity sewers, pump stations, and force mains shall be scheduled so as not to
interrupt service by the existing utilities nor result in an overflow or bypass discharge of wastewater
to the surface waters of the State.
6. Per 15A NCAC 2T .0116, upon completion of construction and prior to operation of these
permitted facilities, the completed Engineering Certification form attached to this permit shall be
submitted with the required supporting documents to the address provided on the form. A complete
certification is one where the form is fully executed and the supporting documents are provided as
applicable.
7. A copy of the construction record drawings shall be maintained on file by the Permittee for the life
ofthe wastewater collection facilities.
8. Failure to abide by the conditions and limitations contained in this permit; 15A NCAC 2T; the
Division's Gravity Sewer Design Criteria adopted February 12, 1996 as applicable; the Division's
Minimum Design Criteria for the Fast -Track Permitting of Pump Station and Force Mains adopted
June 1, 2000 as applicable; and other supporting materials may subject 'the Permittee to an
enforcement action by the Division, in accordance with North Carolina General Statutes §143-
215.6A through §143-215.6C.
9. In the event that the wastewater collection facilities fail to perform satisfactorily, including the
creation of nuisance conditions, the Permittee shall take immediate corrective action, including
those as may be required by this Division, such as the construction of additional or replacement
facilities.
10. The issuance of this permit shall not exempt the Permittee from complying with any and all
statutes, rules, regulations, or ordinances that may be imposed by other government agencies
(local, state and federal) which have jurisdiction, including but not limited to applicable river buffer
rules in 15A NCAC 2B .0200, erosion and sedimentation control requirements in 15A NCAC Ch. 4
and under the Division's General Permit NCG010000, and any requirements pertaining to wetlands
under 15A NCAC 2B .0200 and 15A NCAC 2H .0500.
11. Noncompliance Notification:
The Permittee shall verbally report to a Division of Water Quality employee at the Mooresville
Regional Office, telephone number [phone], as soon as possible, but in no case more than
24 hours or on the next working day, following the occurrence or first knowledge of the occurrence
of either of the following:
a. Any process unit failure, due to known or unknown reasons, that renders the facility incapable
of adequate wastewater transport, such as mechanical or electrical failures of pumps, line
blockage or breakage, etc.; or
b. Any failure of a pumping station or sewer line resulting in a by-pass directly to receiving waters
without treatment of all or any portion of the influent to such station or facility.
2

Voice mail messages or faxed information is permissible, but shall not be considered as the
initial verbal report. Overflows and spills occurring outside normal business hours may also be
reported to the Division of Emergency Management at telephone number [phone] or
[phone]. Persons reporting 'any of the above occurrences shall 'file a spill report by
completing Part I of Form CS-SSO (or the most current Division approved form), within five days
following first knowledge of the occurrence. This report shall outline the actions taken or
proposed to ensure that the problem does not recur. Part II of Form CS-SSO (or the most
current Division approved form) can also be completed to show that the SSO was beyond
control.
Permit issued this the 14th day of May, 2008.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number WQ0032985
3

Fast Track Engineering Certification
Permit No. WQ0032985
May 14, 2008
OwneriWQCS PE
Barry Shearin, Chief Engineer Charles Shue
Charlotte -Mecklenburg Utilities McKim & Creed
5100 Brookshire Blvd 8020 Tower Point Drive
Charlotte, NC 28216 Charlotte, NC 28227
WQCSMIWTP
Steven Miller
Charlotte Mecklenburg Utilities
5100 Brookshire Blvd.
Charlotte, NC 28216
Complete and submit this form to the permit issuing regional office with the following:
• One copy of the project record drawings (plan & profile views of sewer fines) of the wastewater collection
system extension
Supporting design calculations (selected pumps, system curve, operating point, available storage if portable
generator(s) or storage greater than longest past three year outage reliability option selected) for any pump
stations permitted as part of this project
Changes to the project should be clearly identified on the record drawings or in written summary form. Permit
modifications are required for any changes resulting in non-compliance with this permit, regulations or•
minimum design criteria. .
This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all
required supporting documentation have been received by the Division. Therefore, it is highly recommended
that this certification be sent in a manner that provides proof of receipt by the Division.
ENGINEER'S CERTIFICATION
❑ Partial ❑ Final
, as a duly registered Professional Engineer in the State of North Carolina, having been
authorized to observe (❑ periodically, ❑ weekly, ❑ full time) the construction of Griffith St. Pump Station
Modifications, a Mecklenburg County project for the Permittee, hereby state that, to the best of *abilities, due care
and diligence was used in the observation of the construction such that the construction was observed to be built
within substantial compliance of this permit; 15A NCAC 2T; the Division of Water Quality's (Division) Gravity Sewer
Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the
Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting
materials.
and
North Carolina Professional Engineer's
seal, signature, and date:
SEND THIS FORM & SUPPORTING DOCUMENTATION
WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS
MOORESVILLE REGIONAL OFFICE
SURFACE WATER PROTECTION
610 EAST CENTER AVENUE, SUITE 301
MOORESVILLE NC 28115
The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any
wastewater flow made tributary to the wastewater collection system extension prior to completion of this
Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate
enforcement actions.

0
2
USE THE TAB KEY TO MOVE FROM HELD TO FIELD!
(to be completed by DWQ)
Application Number:
1. OwnerfPermittee:
la. Charlotte Mecklenburg Utilities
Full Legal Name (company, municipality, HOA, utility, etc.)
lb Barry Shearin, PE, Chief Enheer, Charlotte Mecklenburg_Utilities
Signing Official Name and Title (Please review 15A NCAC 2T 0106 (b) forauthorized s ning o icials!)
lc. The legal entity who will own this system is:
0 Individual 0 Federal Municipality 0 State/County 0 Private Partnership 0 Corporation 0 Other (specify):
O ld. 5100 Brookshire Blvd le. Charlotte
LL. Mailing Address City
if NC lg. 28216-3371
Z State
O 1h, 704-399-2221 1 704-393-2219 1j.
Telephone Facsimile
2 Project (Faciii Information:
2a, Griffith St, Pump Station Modifications
Brief Project Name (permit will refer to this name)
3. Contact Person:
3a, Brian Pate
Name and Affiliation of Someone Who Can Answer Que
3b. 704-399-2221
Phone Number
1 Project is New
2. Owner is
Zip Code
[e-mail]
E-mail
2b, Mecklenburg
County Where Proje- ct is Located
ons About this Application
3c. bpate@ci,charlotte,nc.us
E-mail
0 Modification (of an existing permit) If Modification, Permit No.:
Public (skip to Item B(3)) 0 Private (go to Item 2(a))
2a. If private, applicant will be:
0 Retaining Ownership (i.e. store, church, single office, etc) or
0 Leasing units (lots, townhomes, etc. - skip to Item B(3))
0 Selling units (lots, townhomes, etc. - go to Item B(2b))
2b. If sold, facilities owned by a must choose one)
0 Public Utility (Instruction C)
0 Homeowner Assoc./Developer (Instruction D)
3, Water and Sewer Authority of Cabarrus County (VVSACC)
Z Owner of Wastewater Treatment Facility (VWVTF) Treating Wastewater From This Project
O 4a. RockiRiver VVWTP 4b, NC0036269
1-- Name of VVVVTF VVvVIF Permit No,
5a, Charlotte Mecklenburg Utilities5b, 15" Gravity' 5c WQ203574
Owner of Downstream Sewer 'Receiving Sewer size 0 Force Main Permit # ot Downstream Sewer (Instruction E)
6, The origin of this wastewater is (check all that apply):
Residential Subdivision
Apartments/Condominiums
0 Mobile Home Park
School
Restaurant
Office
D Retail (Stores, shopping centers)
0 Institution
0 Hospital
Church
0 Nursing Home
0 Other (specify):
100 % Domestic/Commercial
% Industrial (attach
description,)
(RO: contact your Regional Office
Pretreatment staff)
% Other (specify):
7. Volume of wastewater to be allocated or permitted for this particular project: 0 gallons per day
*Do not include future fiows er previously permitted allocations
8. If the permitted flow is zero, indicate why:
Pump Station, Outfall or Interceptor Line where flow will be permitted in subsequent permits that connect to this line
0 Flow has already been allocated in Permit No,
0 Rehabilitation or replacement of existing sewer with no new flow expected (see 15A NCAC 02T .0303 to determine if a
permit is required)
FLA] 2/0 7_ver2

Provide the wastewater flow calculations used in determining the permitted flow in accordance with 15A NCAC 2T .0114 for
the value in Item B(7) ANDIOR the design flow for line or pump station sizing if a reduced or zero flow is being requested in
Item B(7). Values other than that in 15A NCAC 2T .0114 (b) and (c) must be supported with actual water or wastewater use
data in accordance with 15A NCAC 2T .0114 (f).
10. Summary of Sewer Lines to be Permitted (attach additional sheets if necessary)
Size (inches)
Length (feet)
New Gravity or Additional
• Force Main
W
CI
Z '
Design Flow
Z (MGD)
0
0..
Z
0
0.533
18"
8"
28 ± If
25 ± If
Gravity
Gravity
11. Summary of Pump Stations wl associated Force Mains to be Permitted (attach additional sheets as necessary)
Pump,Station Location ID Proposed Pump Station (self chosen -.as shown on plans/map for reference)
Operational Point
GPM @TDH
1850 ©148
Power Reliability Option
1 - permanent generatorwlATS;
2 - portable generator w/MTS
1
Force Main Size
12"
Force Main Length
3635 + If
F Pump Station Location 1D
Design Flow
(MGD)
0,.
L.L. ..._..__
Z
Operational Point
GPM @TDH
(self chosen - as shown on planslmap for reference)
Power Reliability Option
1 - permanent generator w/ATS;
2 - portable generator w/MTS
Force Main Size
Force Main Length
re ;Pump Station Location ID
W.
CO
Design Flow
(MGD)
Operational Point
GPM @TDH
(self chosen - as shown on planslmap for reference)
Power Reliability Option
1 - permanent generator wIATS;
2 - portable generator wIMTS
Force Main Size
Force Main Length
12. Will the wastewater flow in the proposed sewer lines or pump stations be able to be directed to another treatment facility?
❑ Yes ® No If Yes, permit number of 2nd treatment facility
(RO — if "yes" to B,12 please contact the Central Office PERCS Unit)
113. Does the sewer system comply with the Minimum Design Criteria for the Fast Track Permitting of Pump Stations and Force
Mains (latest version), the Gravity Sewer Minimum Design Criteria (latest version) and 15A NCAC Chapter 2T as
applicable?
® Yes ❑ No
If No, please reference the pertinent minimum design criteria or regulation and indicate why a
variance is requested. SUBMIT TWO COPIES OF PLANS, SPECIFICATIONS OR CALCULATIONS
PERTINENT TO THE VARIANCE WITH YOUR APPLICATION
FTA12/07_ver2

14. Have the following permits/certifications been submitted for approval for the system or project to be served?
Wetland/Stream Crossings - General Permit or 401 Certification?
Sedimentation and Erosion Control Plan?
Stormwater?
❑ Yes ❑ No
® Yes ❑ No
❑ Yes ❑ No
® N/A
❑ N/A
® N/A
15. Does this project include any high priority lines, [see 15A NCAC 02T .0402 (2)] involve aerial lines, siphons, or interference
manholes)? These lines will be considered high priority and must be checked once every six months
Check if Yes: ❑ and provide details
OwnerlPermittee's Certification: (Signature of Signing Official and Project Name)
1, Barry Shearin, PE, attest that this application for the Griffith Street Pump Station Modifications has been reviewed by
me and is accurate and complete to the best of my knowledge. ! 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. Note: In accordance with North Carolina General Statutes 143-
215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any
application 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.
Signing Official Signature
Date
'ENGINEERING DESIGN DOCUMENTS MUST BE COMPLETED PRIOR TO SUBMITTAL OF THIS
APPLICATION. THESE DOCUMENTS MUST INCLUDE PLAN AND PROFILE OF SEWERS, THEIR PROXIMITY
TO OTHER UTILITIES, DESIGN CALCULATIONS. ETC. REFER TO 15A NCAC 02T .0305
Z
1 2. Professional Engineer's Certification: (Signature of Design Engineer and Project Name)
1, Charles E. Shue, PE, attest that this application for the Griffith Street Pump Station Modifications has been reviewed by
LL me and is accurate, complete and consistent with the information in the engineering plans, calculations, and all other
supporting documentation to the best of my knowledge. 1 further attest that to the best of my knowledge the proposed
Ce design has been prepared in accordance with the applicable regulations, Gravity Sewer Minimum Design Criteria for
W Gravity Sewers adopted February 12, 1996, and the Minimum Design Criteria for the Fast -Track Permitting of Pump
V Stations and Force Mains adopted June 1, 2000 and the watershed classification in accordance with Division guidance.
Although other professionals may have developed certain portions of this submittal package, inclusion of these materials
under my signature and seal signifies that 1 have reviewed this material and have judgedit to be consistent with the
proposed design. Note: In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly
makes any false statement, representation, or certification in any application shall be guilty of a Class 2 misdemeanor
which may include a tine not to exceed $10,000 as well as civil penalties up to $25,000 per violation.
ci
2a. Charles E. Shue, PE
Professional Engineer Name
2b. McKim & Creed
Engineering Firm
2c. 8020 Tower Point Drive
Mailing Address
2d. Charlotte
3 City
2g. 704-841-2588 2h. 704-841-2567 2i. [e-mail]
Telephone Facsimile
e. NC 12f. 28227
State Zip
E-mail
,,tu tiCiA,,,,,,
SSio '1.1
_rs
-�"A I-
•
ES, ,,,, ,, V
NC PE Seal, Signature & Date
FTA12/07 ver2

'FORM WSCAS-12/07
WATERSHED CLASSIFICATION ATTACHMENT
FOR SEWER SYSTEMS
Applicant Name
Charlotte Mecilenburg Utilities
Professional Engineer Name
Charles E. Shue, PE
Location
ID
Project Nam
Griffith St, Pump Station Modifications
Engineering Firm Name
McKim & Creed
Name of Waterbody'
Catawba River
River Waterbody Stream Waterbody
Count Basin Index No. Classification
Mecklenburg Catawba 11 - (75) W S-IV,E :CA
unnamed, indicate "unnamed tributary to X", where X is the named waterbody to which the unnamed tributary goi
I certify that as a Registered Professional Engineer in the State of
North Carolina that I have diligently followed the Division's instructions
for classifying waterbodies and that the above classifications are
inclusive of the stated project, complete and correct to the best of my
knowledge and belief,
PE Seal, Signature and Date
** END OF FOR, W'SC.AS-
FORM: WSCAS-12/07

GRIFFITH ST PUMP STATION MODIFICATIONS
CHARLOTTE MECKLENBURG UTILITIES
200 400
800
1,200
1 inch equals 600 feet
1,600
Feet
&CREED

April 24, 2008
Ms, Dee Browder
Mooresville Regional Office, Division of Wate
North Carolina Department of Environment a
610 East Center Avenue, Suite 301
IMooresville, North Carolina 2811.5
014320019(40)
APR 2 r ;-;;;41„
0n
i
RE: Fast -Track Application
Griffith Street Pump Station NC DENR MR0
Charlotte Mecklenburg Utilities DWQ-Surface Water Protection
Dear Ms, Browder,
Enclosed please find one original and one copy of the completed Fast -Track
Application and a check for the application fee for the Griffith Street Pump
Station in Davidson.
The application indicates a permitted flow of zero wastewater for this project.
Future wastewater flow generated in the service area will be assigned to the
specific future projects as they develop. 'Therefore,. per your instructions,
neither flow- calculations nor Form FTSE-10/07, HOW Tracking/Acceptance for
Sewer Extension Permit Application., are included for either CMU or WSACC
The new force main for the Griffith Street Pump Station was previously
permittedunder permit number \VQ0030600.
Please review the above and if you have any questions or comments, do not
hesitate to call me at 704-841-2588.
Very truly yours,
Me_1(1114 & CREED, PA.
CALA-A:- K
Charles E. Shue, PE
Senior Project Manager
pc: Brian Pate, Charlotte Mecklenburg Utilities

' w Central Files: APS SWP^
05/13/08
Permit Number WQ0032985 Permit Tracking Slip
Program Category Status Project Type
Non -discharge In review New Project
Permit Type Fast Track Version Permit Classification
Gravity Sewer Extension, Pump Stations, & Pressure Sewer A Individual
Extensions
Primary Reviewer Permit Contact Affiliation
dee.browder
Permitted Flow
0
Facility
Facility Name
Griffith Street Pump Station Modifications
Location Address
Owner
Major/Minor Region
Minor Mooresville
County
Mecklenburg
Facility Contact Affiliation
Owner Name Owner Type
Charlotte Mecklenburg Utilities Government - County
Dates/Events
Owner Affiliation
Barry Shearin, PE
5100 Brookshire Blvd
Charlotte
NC 28216
Orig Issue App Received
05/14/08 04/25/08
Draft Initiated
Scheduled
Issuance
Public Notice issue Effective Expiration
05/14/08 05/14/08
Regulated. Activities Reauested/Received Events
Apartment complex
Church
Condominium
Restaurant
School
Wastewater collection
Outfall NULL
Additional information requested
Additional information received
Waterbody Name Stream Index Number Current Class Subbasin

East Track Engineerincl Certi
Permit No, WQ0032985
y 14, 2008
OwnerMlQCS
Barry Shearin, Chief Engineer
Charlotte -Mecklenburg utilities
5100 Brookshire Blvd
Charlotte, NC 28216
n
PE
Charles Shue
McKim & Creed
8020 Tower Point Drive
Charlotte, NC 28227
WQCSiWWTP
Steven Miller
Charlotte Mecklenburg Utilities
5100 Brookshire Blvd.
Charlotte, NC 28216
Complete and submit this form to the permit issuing regional office with the following:
• One copy of the project record drawings (plan & profile views of sewer lines) of the wastewater collection
system extension
Supporting design calculations (selected pumps, system curve, operating point, available storage if portable
generator(s) or storage greater than longest past three year outage reliability option selected) for any pump
stations permitted as part of this project
Changes to the project should be clearly identified on the record drawings or in written summary form. Pe
modifications are required for any changes resulting in non-compliance with this permit, regulations or
minimum design criteria.
This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all
required supporting documentation have been received by the Division, Therefore, it is highly recommended
that this certification be sent in a manner that provides proof of receipt by the Division.
ENGINEER'S CERTIFICATION
Partial D Final
r Cke,Pk', 5h J , as a duly registered Professional Engineer in the State of North Carolina, having been
.horized to observe periodically, [j weekly, © full time) the construction of Griffith St. Purnp Station
Modifications, a Mecklenburg County project for the Permittee, hereby state that, to the best of my abilities, due care
and diligence was used in the observation of the construction such that the construction was observed to be built
within substantial compliance of this permit 15A NCAC 27; the Division of Water Quality's (Division) Gravity Sewer
'Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the
Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting
materials.
North Carolina Professional Engineer's
seal, signature, and date:
ErsutO
SEND THIS FORM & SUPPORTING DOCUMENTATION
WiTH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS
MOORESVILLE REGIONAL OFFICE
SURFACE WATER PROTECTION
610 EAST CENTER AVENUE, SUITE 301
MOORESVILLE NC 28115
The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any
wastewater flow made tributary to the wastewater collection system extension prior to completion of this
Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate
enforcement actions,

Fast Track Engineering Certification
Perrnit No. WQ0032985
May 14, 2008
Owner!WQCS PE
Barry Shearin, Chief Engineer Charles'Shue
Charlotte -Mecklenburg Utilities McKim & Creed
5100 Brookshire Blvd 8020 Tower Point Drive
Charlotte, NC 28216 Charlotte, NC 28227
WQCSNUWIP
Steven Miller
Charlotte Mecklenburg Utilities
5100 Brookshire Blvd.
Charlotte, NC 28216
Complete and submit this form to the permit issuing regional office with the following:
• One copy of the project record drawings (plan & profile views of sewer lines) of the wastewater collection
system extension
• Supporting design calculations (selected pumps, system curve, operating point, available storage if portable
generator(s) or storage greater than longest past three year outage reliability option selected) for any pump
stations permitted as part of this project
• Changes to the project should be clearly identified on the record drawings or in written summary form. Permit
modifications are required for any changes resulting in non-compliance with this permit, regulations or
•
minimum design criteria.
This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all
required supporting documentation have been received by the Division. Therefore, it is highly recommended
that this certification be sent in a manner that provides proof of receipt by the Division.
ENGINEER'S CERTIFICATION
IN/Partial ❑ Final
3 Ch��ks e.. Sh- e- , as a duly registered Professional Engineer in the State of North Carolina, having been
.horiaed to observe periodically, ❑ weekly, ['full time) the construction of Griffith St. Pump Station
Modifications, a Mecklenburg County project for the Permittee, hereby state that, to the best of my` abilities, due care
and diligence was used in the observation of the construction such that the construction was observed td tie built
within substantial compliance of this permit; 15A NCAC 2T; the Division of Water Quality's (Division) Gravity Sewer
'Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the
Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting
materials.
• North Carolina Professional Engineer's
seal, signature, and date: - .
•
.. i ...:4 "of
P- `SRO':
Jul!, -?Q ,2:
A�, -
/42 • •
hi 1
SEND THIS FORM &, SUPPORTING DOCUMENTATION
WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS
MOORESVILLE REGIONAL OFFICE
SURFACE WATER PROTECTION
610 EAST CENTER AVENUE, SUITE 301
MOORESVILLE NC 28115
The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any
wastewater flow made tributary to the wastewater collection system extension prior to completion of this .
Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate
enforcement actions.

Charlotte Mecklenburg Utilities
Town of Davidson
Griffith St. Pump Station
Pump Station Design Calculations
Engineering Report
WQ0032985

Charlotte Mecklenburg Utilities
Town of Davidson
Griffith St. Pump Station
Pump Station Design Calculations
Engineering Report
Design Flows
Average Design Flows (ADF)
ADF = 370 gpm
Pumping Rate (QPS)
QPS = 1850 gpm
Wet Well Design
Volume
Where: Tc = Pump cycle time (minutes)
V = Volume of the Wet Well (cubic feet)
Scenario
1. Build Out Flows
V = Tc *ADF*(1-(ADF/PDF)) per NCDENR requirements
Tc ADF*(1-(ADF!QPS))
V= 12.0 x 296.00 = 3552.00 gal
Cycles per Hour
Where: Tf = Wet Well fill time (minutes)
Tr = Pump run time (minutes)
Tc = Total pump cycle time
C = Cycles per hour
V ADF
Tf = 3552.00 ! 370.00 = 9.60 minutes
V (PDF- ADF)
Tr= 3552.00 / 1480.00 = 2.40 minutes
Tc = Tf + Tr = 12.00 minutes
C = 60 minutes / Tc = 5.00 cycles per hour
Wet Well Sizing
WET WELL
Dimensions
12.00 18.33
Area
(t)
219.96
STORAGE DEPTH (ft) BASED ON
EFFECTIVE VOLUME
0.35
27.00 42.00
1134.00
Wet Well Control Settings
Pump Station Top
High Water Alarm
Lag Pump On
Lead Pump On
Pump(s) Off
Low Water Alarm
Influent Sewer Invert
Wet Well Floor
Wet Well Bottom
Depth (ft. )
1.45
15.17
0.50
0.50
0.50
0.50
1.50
0.50
1.50
Elevation (ft.)
765.45
750.28
749.78
749.28
748.78
748.28
746.78
746.28
744.78
Design allows 2.50' from "Pump(s) Off' elevation to 'Wet Well Bottom" elevation.
"Suction Intake" elevation shall be set for pumps supplied. supplied. Consult
manufacturers specifications.
Total Pump Station Depth = 20.67 ft
McKim and Greed
ProJec1 No. 1432-0019
Page 1
3/26/2010

Pump Selection & Design
General Design Parameters
-- Pumping Rate
Force Main Size:
- Force Main Velocity=
TDH=Hm+Hv+Hf+Hs
where:
1850.00 gpm
12 inch
5.25 ftfs
Hm =Minor Losses
Hv = Velocity Head
Hf =Friction Losses
Hs = Static Head
Static Head
Hs = Highest Force Main Elevation - Pump Off Elevation
-- Highest FM Elev. =
Hs = 820 - 748.78 = 71.22 feet
820 feet
Hs =
71.22 feet
Equivalent Unit Lengths of Fittings and Piping
Equivalent 8 inch Diameter Piping
PS Suction Fittings
8" Bell
PS Suction Piping
No. Unit L Total L
1.60 1.60
Suction Fittings and Piping Total 1.60
PS Discharge Fittings
8" Check Valve 1 80.0 80.00
6" Plug Valve 2 12.5 25.00
8" 45 Bend 2 4.2 8.40
8" 90 Bend 2 8.8 17.60
8" Tee Branch 1 40.0 40.00
8" Tee Line 1 13.3 13.30
P5 DiScharne Pining
8" DIP 1 50.0 50.00
FM Pining
All Fittings and Piping Total 235.90
Equivalent 12 inch Diameter Piping
Fittings No. Unit L Total L
PS Suction Fittings
PS Suction Pining
Suction Fittings and Piping Total 0.00
PS Discharge Fittings
PS Discharge Piping
FM Fittings
12' x 8" Reduce 1 20.8 20.80
12" 90 Bend 4 16.5 66.00
12' 45 Bend 8 5.3 42.40
12" 22.5 Bend 5 2.6 13.00
12" 11.25 Bend 2 1.7 3.40
FM Piping
12" DIP 1 3625 3966
All Fittings and Piping Total 4111.60
McKim and Creed
Project No. 1432-0019
Page 2
3282010

•
Minor Losses for Suction Piping at Design Flow
Hazen -Williams Friction Factor = 100
Q
gpm
1850
L (ft)
8 inch Diameter Piping
1.60
hU. -100 ft
9.253
Hf (ft)
0.15
Total
Hss (ft)
0.15
Net Positive Suction Head Available
NPSHa =
where:
ha+hss - hfs -hvp=
35.46 ft
ha = Atmospheric Pressure of Water at Mean Sea Level =
hss = Suction Static Head (Pumps Off Elevation - Volute CI Elevation) =
hfs = Minor Losses for Suction Piping at Design Flow =
hvp = Vapor Pressure for Water at 60d F
Minor Losses for Minimum Condition
Hazen -Williams Friction Factor = 125
33.9 ft
2.30 ft
0.15 ft
0.59 ft
Q
gpm
8 inch Diameter Piping
12 inch Diameter Piping
Total
Hf (ft)
L (ft)
h\L -100 ft
Hf (ft)
L (ft)
MI_ -100 ft
Hf (ft)
0
235.90
0.000
0.00
4111.60
0.000
0.00
0.00
400
235.90
0,359
0.85
4111.60
0.050
2.05
2.89
800
235.90
1.296
3,06
4111.60
0,180
7,39
10,45
1200
235.90
2.746
6.48
4111.60
0.381
15.67
22.14
1600
235.90
4.678
11.04
4111.60
0.649
26.69
37.73
2000
235.90
7.072
16.68
4111.60
0.981
40.35
57.03
1850
235.90
6.121
14.44
4111.60
0.849
34.92
49.36
2400
235.90
9,912
23.38
4111,60
1,376
56.56
79.94
2800
235.90
13.187
31.11
4111.60
1.830
75.24
106.35
Minor Losses for Maximum Condition
Hazen -Williams Friction Factor = 100
Q
gpm
8 inch Diameter Piping
12 inch Diameter Piping
Total
Hf (ft)_
L (ft)
h1L -100 ft
HT (ft)
L (ft)
h1L -100 ft _
_ Hf (ft)
0
235,90
0,000
0.00
4111.60
0.000
0.00
0.00
400
235.90
0.543
1.28
4111.60
0.075
3.10
4.38
800
235.90
1.959
4.62
4111.60
0.272
11.18
15.80
1200
235.90
4.151
9.79
4111.60
0.576
23.68
33.48
1600
235.90
7.072
16.68
4111.60
0.981
40.35
57.03
2000
235.90
10.691
25.22
4111.60
1.464
61.00
86.22
1850
235.90
9.253
21.83
4111.60
1.284
52.80
74.63
2400
235.90
14.985
35.35
4111.60
2.079
85.50
120.85
2800
235.90
19.936
47.03
4111.60'
2.767
113.75
160.78
Minimum Head Conditions
FM Piping = 12 inches
PS Piping = 8 inches
Suct. Inlet = 8 inches
C=
125
Minor Losses Force Main
Static
Q
gpm
Hm
ft
Velocity
fps
Hy •
ft.
Hs
ft.
TDH
ft.
0
0.00
0.00
0.00
71.22
71.22
400
2.89
1.13
0.10
71.22
74.22
800
10.45
2.27
0.40
71.22
82.08
1200
22.14
3.40
0.91
71.22
94.27
1600
37.73
4.54
1.62
71.22
110.57
2000
57.03
5.67
2.53
71.22
130,76
1850
49.36
5.25
2.17
71.22
122,75
2400
79.94
6.81
3.64
71.22
154.80
2800
106.35
7.94
4.98
71.22
182.53
McKIm end Creed
Protect No. 1432.0019
Page 3
3/26/2010

Maximum Head Conditions
FM Piping =
PS Piping =
Suct. Inlet =
C=
12 inches
8 inches
8 inches
100
Minor Losses Force Main
Static
Q
gpm
Hm
ft
Velocity
fps
Hv'
_ ft.
Hs
ft.
TDH
ft.
0
0.00
0.00
0.00
71.22
71.22
400
4.38
1.13
0.10
71.22
75.70
800
15.80
2.27
0.40
71.22
87.42
1200
33,48
3,40
0.91
71.22
105.61
1600
57,03
4,54
1.62
71.22
129.87
2000
86.22
5.67
.2,53
71.22
159.97
1850
74.63
5.25
2.17
71.22
148.01
2400
120.85
6.81
3.64
71.22
195.71
2600
160.76
7.94
4.96
71.22
236.96
Velocity Head taken at PS Suction Inlet
System Head Curves
Minimum Maximum
Q
gpm
TDH
FT
TDH
FT
0
71.22
71.22 '
400
74.22
75.70
800
82.08
87.42
1200
94.27
105,61
1600
110.57
129.87
2000
130.78
159.97
2400
154.80
195.71
2800
182.53
236.96
Brake Horse Power
BHP = (gpm * TDH ` sg) / (3950 * Pe) =
where:
Velocity
min flow =
max flow =
Pump Curves
Q
gpm
1800 RPM
FT
0
243.70
400
220.30
800
199.80
1200
180.10
1600
160.50
2000
143.00
2400
127.40
2800
109.00
gpm = design flow =
TDH =Total Dynamic Head
sg = Specific Gravity of water at 60d F. =
Pe = Pump Efficiency =
FM Piping =
PS Piping
370.00 gpm
1850.00 gpm
min vel. =
max vex. =
90.42 HP
1850 gpm
148.01 ft
0.999
76.4 %
12 inches
8 inches
12" FM 8" PS
1.05 ft/s
5.25 ft!s
2.36 ft/s
11.81 ft/s
Operating Point
Q
TDH
gpm
FT
1850
148.01
Pump Selection
8" CP3300 350 mm Imp.
Flygt- Curve 63-460
NPSHr=
NPSHa=
30.80 ft
35.46 ft
McKim and Creed
Project No. 1432-0019
Page 4
3126/2010

300
250
.� 200
u_
c 150
w
100
50
PUMP AND SYSTEM HEAD CURVES - 12" FM
- TDH (MIN) C=125
- TDH(MAX) C=100
— 0-1800 RPM
A Design Point
MII=O1111=1.
="Maitil•
0
400
800
1200 1600
GPM
2000
2400
2800
Bouancy Calculations
Dia. Thickness Height Area Volume Density Weight
(ft) (ft) (ft) (ft42) (ft"3) (Iblft°3) (lips)
wet well top 9 1 63.62 63.62 150 9,543
slab
wet well
walls
wet well
bottom slab
soil
overburden
Water Displaced
wet well
walls
wet well
bottom slab
9
11
11
9
11
1 16.15 13.35 215.63 150 32,345
2 95.03 190.07 150 28,510
2 15.15 31.42 475.95 37.6 17,896
'(Assume groundwater level at surface)
88,293
15.15 63.62 964 62.4 60,141
2 95.03 190 62.4 11,860
72,001
Difference between wet well self weight with soil overburden and water displaced. = 16,292 (Ibs)
Factor of Safety = 1.23
McKim and Creed
Project No. 1432-0019
Page 5

Certified Performance Curves
The following curve shows predicted flow for the pump/impeller
combination shown. Certified factory performance curves will be
submitted for approval prior to the pumps leaving the factory.

FLYGT
PERFORMANCE CURVE
PRODUCT
CP3300 /605
TYPE
HT
DATE
2009-06-09
PROJECT CMUD-Griffith Street Station Rehab
Protect Number 359-05542
CURVE NO
63-460
ISSUE
8 _
POWER FACTOR I
EFFICIENCY
MOTOR DATA
1/1-LOAD
0.84
93.5 %
—
3/4-LOAD
0.80
94.5 %
—
1/2-LOAD
0.71
95.0 %
—
PRATED DR 100 h
STARTING P
CURRENT ... 560 A
CURRENT ... 120 A
RATED
SPEED
TOT.MOM.OF 1775 rpm
INERTIA ... 0.89 kgm2
NO. OF
BLADES 2
IMPELLER DIAMETER
350 mm
MOTOR # STATOR
35-29-4AA 101 D
REV
12
FREQ.
60 Hz
PHASES
3
a VOLTAGE
460 V
POLES
4
COMMENTS
INLET OUTLET
-/ 6 inch
GEARTYPE RATIO
-- I --
IMP. THROUGHLET
3.0 inch
a F5
[hp]
100
r
J —
r r
1 -
f
DVERALL EFF. 0 INPUT POWE
'UMP EFF. * SHAFT POWs
Et
1
�
80
O
-------------------
60
CL.
40
.
DUTY -POINT FLOW(usgpm) HEAD[ft] POWER [hp] EFF. [%] NPSHre]ft]
1 1880 148 97.9 (92.1) 71.9 (76.5) 31.3
B.E.P. 2157 137 104 (97) 72.4 (77.1) 36.0
0 .
NPSHre 1-
[ft]
[ft]
o
1
120 —
w 16 w
m 0
240
I- Q-
100 —EFF.
200
[%]
80 --
80
Q160
W
-----1
P
70
2
�
----
=
.4—
7-
60
60
120
` ""-.--
50
40
40
80
— 30
20
1 20
40
—10
0
0
0
0 500
1000
1500
2000 2500 [USgpm]
FLOW
NPSHre = NPSH3% + min. operational margin
Performance with clear water and ambient temp 40 °C
FLYGT
HI B Cu rve

Charlotte Mecklenburg Utilities
Town of Davidson
Griffith St. Pump Station
Pump Station Design Calculations
Engineering Report
WQ0032985
•`pPSH Cq/R.?,f?
: n , .Q` -V: "

Charlotte Mecklenburg Utilities
Town of Davidson
Griffith St. Pump Station
Pump Station Design Calculations
Engineering Report
Design Flows
Average Design Flows (ADF)
ADF = 370 gpm
Pumping Rate (QPS)
QPS = 1850 gpm
Wet Well Design
Scenario
1. Build Out Flows
Volume
Where: Tc = Pump cycle time (minutes)
V = Volume of the Wet Well (cubic feet)
V = Tc *ADF*(1-(ADF/PDF)) per NCDENR requirements
Tc ADF*(1-(ADF/QPS))
V = 12.0 x 296.00 = 3552.00 gal
Cycles per Hour
Where: Tf = Wet Well fill time (minutes)
Tr = Pump run time (minutes)
Tc = Total pump cycle time
C = Cycles per hour
V ADF
Tf = 3552.00 / 370.00 = 9.60 minutes
V (PDF- ADF)
Tr= 3552.00 / 1480.00 = 2.40 minutes
Tc = Tf + Tr = 12.00 minutes
C = 60 minutes / Tc = 5.00 cycles per hour
Wet Well Sizing
WET WELL
Dimensions
12.00 18.33
Area
(ft')
219.96
STORAGE DEPTH (ft) BASED ON
EFFECTIVE VOLUME
0.35
27.00 42.00
1134.00
Wet Well Control Settings
Pump Station Top
High Water Alarm
Lag Pump On
Lead Pump On
Pump(s) Off
Low Water Alarm
Influent Sewer Invert
Wet Well Floor
Wet Well Bottom
Depth (ft. )
1.45
15.17
0.50
0.50
0.50
0.50
1.50
0.50
1.50
Elevation (R.t
765.45
750.28
749.78
749.28
748.78
748.28
746.78
746.28
744.78
Design allows 2.50' from "Pump(s) Off' elevation to "Wet Well Bottom" elevation.
"Suction Intake" elevation shall be set for pumps supplied. supplied. Consult
manufacturers specifications.
Total Pump Station Depth = 20.67 ft
McKim and Creed
Project No. 1432-0019 Page 1
3/2612010

Pump Selection & Design
General Design Parameters
- Pumping Rate =
- Force Main Size:
- Force Main Velocity=
TDH=Hm+Hv+Hf+Hs
where:
1850.00 gpm
12 inch
5.25 ft/s
Hm =Minor Losses
Hv = Velocity Head
Hf =Friction Losses
Hs = Static Head
Static Head
Hs = Highest Force Main Elevation - Pump Off Elevation
-- Highest FM Elev. =
820 feet
-- Hs = 820 - 748.78 = 71.22 feet
Hs =
71.22 feet
Equivalent Unit Lengths of Fittings and Piping
Equivalent 8 inch Diameter Piping
PS Suction Fittings
8' Bell
PS Suction Piping
No. Unit L Total L
1
1.60 1.60
Suction Fittings and Piping Total 1.60
PS Discharge Fittings
8" Check Valve 1 80.0 60.00
8" Plug Valve 2 12.5 25.0D
8" 45 Bend 2 4.2 8.40
8" 90 Bend 2 8.6 17,60
8" Tee Branch 1 40.0 40.00
8" Tee Line 1 13.3 13.3D
PS Discharge Piping
8" DIP 1 50,0 50,00
FM Piping
Alt Fittings and Piping Total 235.90
Equivalent 12 inch Diameter Piping
Fittings No. Unit L Total L
PS Suction Fittings
PS Suction Piping
Suction Fittings and Piping
PS Discharge Fittings
PS Discharge Piping
FM Fittings
Total 0.00
12" x 6" Reduce 1 20.8 20.80
12' 90 Bend 4 16.5 66.00
12" 45 Bend 8 5.3 42.40
12" 22.5 Bend 5 2.6 13.00
12" 11,25 Bend 2 1.7 3.40
FM Piping
12" DIP 1 3625 3966
All Fittings and Piping Total 4111.60
Maim and Creed
Project No. 1432-0019
Page 2
3252010

Minor Losses for Suction Piping at Design Flow
Hazen -Williams Friction Factor = 100
Q
gpm
8
inch Diameter Piping
Total
Hss (ft)
L (ft)
h1L -100 ft Hf (ft)
1850
1.60
9.253
0.15
0.15
Net Positive Suction Head Available
NPSHa = ha + hss - hfs - hvp
where:
35.46 ft
ha = Atmospheric Pressure of Water at Mean Sea Level
hss = Suction Static Head (Pumps Off Elevation - Volute CI Elevation) _
hfs = Minor Losses for Suction Piping at Design Flow =
hvp = Vapor Pressure for Water at 60d F
Minor Losses for Minimum Condition
Hazen -Williams Friction Factor = 125
33.9 ft
2.30 ft
0.15 ft
0.59 ft
Q
gpm
B inch Diameter Piping
12 inch Diameter Piping
Total
HT (ft)
L (ft)
h1L -100 ft
Ht (ft)
L (ft)
h1L -100 ft
Hf (ft)
0
235.90
0.000
0.00
4111.60
0.000
0.00
0.00
400
235.90
0.359
0.85
4111.60
0.050
2.05
2.89
800
235.90
1.296
3.06
4111.60
0.180
7.39
10.45
1200
235.90
2.746
6,48
4111.60
0.381
15.67
22.14
1600
235.90
4.578
11.04
4111.60
0.649
26.69
37.73
2000
235.90
7.072
16.68
4111.60
0.981
40.35
57.03
1850
235.90
6.121
14.44
4111.60
0.849
34.92
49.36
2400
235.90
9.912
23.38
4111.60
1,376
56.56
79.94
2800
235.90
13.187
31,11
4111.60
1.83D
75.24
105.35
Minor Losses for Maximum Condition
Hazen -Williams Friction Factor = 100
Q
gpm
8 inch Diameter Piping
12 inch Diameter Piping
Total
Ht (ft)
L (ft)
h1L -100 ft
Hf (f1)
L (ft)
htL -100 ft
Hf (ft)
0
235.90
0.000
0.00
4111.60
0.000
0.00
0.00
400
235.90
0.543
1.28
4111.60
0.075
3.10
4.38
800
235.90
1.959
4.62
4111.60
0.272
11.18
15.80
1200
235.90
4.151
9.79
4111.60
0.576
23.68
33.48
1600
235.90
7.072
16.68
4111.60
0.981
40.35
57.03
2000
235.90
10.691
25.22
4111.60
1.484
61.00
86.22
1850
235.90
9.253
21.83
4111.60
1.284
52.80
74.63
2400
235.90
14.985
35.35
4111.60
2.079
85.50
120.85
2800
235.90
19.938
47.03
4111.69
2.767
113.75
160.78
Minimum Head Conditions
FM Piping = 12 inches
PS Piping = 8 inches
Suct. Inlet = 8 inches
C=
125
Minor Losses Force Main
Static
Q
gpm
Hm
ft
Velocity
fps
Hy'
ft.
Hs
ft.
TDH
ft.
0
0.00
0.00
0.00
71.22
71.22
400
2.89
1.13
0.10
71.22
74.22
800
10.45
2,27
0.40
71.22
82.08
1200
22.14
3.40
0.91
71.22
94.27
1600
37.73
4.54
1.62
71.22
110.57
2000
57.03
5.67
253
71.22
130.78
1650
49.36
5.25
2.17
71.22
122.75
2400
79,94
6.81
3.64
71.22
154.80
2800
106,35
7.94
4.95
71.22
182.53
McKim and Creed
Project No. 1432.0019
Page 3
3126/2010

•
.F
Maximum Head Conditions
FM Piping = 12 inches
PS Piping = 8 inches
Suet. inlet = 8 inches
C=
100
Minor Losses Force Main
Static
Q
gpm
Hm
8
Velocity
fps
Hv'
ft.
Hs
ft.
TDH
ft.
0
0.00
0.00
0.00
71.22
71.22
400
4.38
1.13
0.10
71.22
75.70
800
15.80
2.27
0.40
71.22
87.42
1200
33.48
3.40
0.91
71.22
105.61
1600
57.03
4.54
1.62
71.22
129.87
2000
86.22
5.67
2.53
71.22
159.97
1650
74.63
5.25
2.17
71.22
146.01
2400
120.85
6.61
3.64
71.22
195.71
2800
160.78
7.94
4.96
71.22
236.96
Velocity Head taken at PS Suction Inlet
System Head Curves
Minimum Maximum
Q
gpm
TDH
FT
TDH
FT
0
71.22
71.22
400
74.22
75.70
800
82.08
87.42
1200
94.27
105.61
1600
110.57
129.87
2000
130.78
159.97
2400
154.80
195.71
2800
152.53
236.96
Brake Horse Power
BHP = (gpm *TDH • sg) / (3960 " Pe) =
where:
Velocity
min flow =
max flow
Pump Curves
0
gpm
1800 RPM .
FT
0
243.70
400
220.30
800
199.80
1200
180.10
1600
160.50
2000
143.00
2400
127.40
2800
109.00
gpm = design flow =
TDH =Total Dynamic Head =
sg = Specific Gravity of wafer at 60d F. _
Pe = Pump Efficiency =
FM Piping =
PS Piping =
370.00 gpm
1850.00 gpm
90.42 HP
1850 gpm
148.01 ft
0.999
76.4 %
12 inches
8 inches
12" FM 8" PS
min vel. = 1.05 Ws
Max vel. = 5.25 Ws
2.36 ft/s
11.81 ills
Operating Point
Q
TDH
gpm
FT
1850
148.01
Pump Selection
8" CP3300 350 mm Imp.
Flygt- Curve 63-460
NPSHr =
NPSHa=
30.80 ft
35.46 ft
McKim and Greed
Project No. 1432-0019
Page 4
3262010

300
250
1-
200
Q 150
w
x 100
50
0
0
PUMP AND SYSTEM HEAD CURVES - 12" FM
400
800
1200 1600
GPM
2000
2400
—ER—TDH (MIN) C=125
---TDH(MAX) C=100
—0-1800 RPM
A Design Point
2800
Bouancy Calculations
IDia. Thickness Height Area Volume Density Weight
(ft) (ft) (ft) (ftA2) (ft"3) (Iblft"3) (lbs)
wet well top 9 - 1 63.62 63.62 150 9,543
slab
wet well
walls
wet well
bottom slab
soil
overburden
Water Displaced
wet well
walls
wet well
bottom slab
9
11
11
9
11
1 16.15 13.35 215.63 150 32,345
2 95.03 190.07 150 28,510
2 15.15 31.42 475.95 37.6 17,896
88,293
'(Assume groundwater level at surface)
15.15 63.62 964 62.4 60,141
2 95.03 190 62.4 11,860
72,001
Difference between wet well self weight with soil overburden and water displaced. = 16,292 (Ibs)
Factor of Safety = 1.23
McKim and Creed
PrcJect No. 1432-0019 Page 5
3126l200

Certified Performance Curves
The following curve shows predicted flow for the pump/impeller
combination shown. Certified factory performance curves will be
submitted for approval prior to the pumps leaving the factory.

FLVGT
PERFORMANCE CURVE
PRODUCT
CP 3300 /605
TYPE
HT
DATE
2009-06-09
POWER FACTOR
EFFICIENCY
MOTOR DATA
PROJECT CMU17-Griffith Street Station Rehab
Project Number 359-05542
1/1-LOAD
0.84
93`5 %
3/4-LOAD
0.80
94.5 %
112-LOAD
0.71
95.0 %
COMMENTS
INLET/OUTLET
-1 6 inch
IMP. THROUGHLET
3.0 inch
RATED
POWER 100 hp
STARTING
CURRENT ... 560 A
RATED
CURRENT ... 120 A
RATED
SPEED 1775 rpm
TOT.MOM.OF
INERTIA... 0.89 kgm2
NO, OF
BLADES 2
CURVE NO
63-460
IMPELLER DIAMETER
350 mm
ISSUE
8
MOTOR# STATOR REV
35-29-4AA 101 D 12
FREQ.
60 Hz
PHASES
3
VOLTAGE
460 V
POLES
4
GEARTYPE
RATIO
[h p]
100
80
O 60
40
1
r
DUTY -POINT
1
B.E.P.
[ft]
240
200
FLOW[USgpm]
1880
2157
HEAD[ft]
148
137
POWER [hp]
97.9 (92.1)
104 (97)
EFF. I%] NPSHre[tt]
71.9 (76.5) 31.3
72.4 (77.1) 36.0
NPSHre
2000
Ow
H re=36-f. .
of
[ft]
120
0 OVERALL EFF.
E-
J
rQ-
100 _EFF.
F.
80-80
4 70
.1 0-60
2500
`�-50
40 — 40
-- 30
20 — 20
—10
0-0
[USgpm]
ul R i'r �r.►a

March 26, 2010
Ms.. Dee Browder
Mooresville Regional Office,.Division of Water
Surface Water Protection, NCDENR
610 East Center Avenue, Suite 301
Mooresville, North Carolina 28115
0 1 4 3 2 0 0 4 :1 ( 4 0 )
:RE: Partial Engineering Certification - Permit No, WQ0032895
Griffith Street Pump Station - Charlotte Mecklenburg Utilities
Dear ,Ms. Browder,
Enclosed please find the original Fast -Track Engineering Certification for the
Griffith Street Pump Station (Permit No. WQ0032895). Also enclosed are
supporting design calculations for the pump station. 'Two copies of the
project record drawings will be Submitted upon final completion/final
certification,
This is a partial certification for the pump stattofl which is fully operational;
however, a number of site related issues which do not affect the operation of
the facility still need attention. We are providing this partial certification in
order to discontinue the temporary by-pass pumping and allow the
permanent pump station to operate in automatic mode. The on -site generator
is fully operational so back-up power is available.
Please review the above and if you have any questions or comments, do not
hesitate to call me at 704-841-2588.
I
Very truly yours,
McK1M & CREED, P.A.
Charles E, Shue, PE
Senior Project Manager
nf;
"0; Ote
Pc: Brian Pate, Charlotte Mecklenburg Utilities
Dennis Gwaltney, f5r7,-ttr.t117'Ivitecklenburg Utilities
Stuart Rosenberger, Charlotte Mecklenburg Utilities

Fast Track Engineering Certification
Permit No, W00032985
May 14, 2008
OwnerfWQCS PE
Barry Shearin, Chief Engineer Charles Shue
Charlotte -Mecklenburg Utilities McKim & Creed
5100 Brookshire Blvd 8020 Tower Point Drive
Charlotte, NC 28216 Charlotte, NC 28227
WQCSNW TP
Steven Miller
Charlotte Mecklenburg Utilities
5100 Brookshire Blvd.
Charlotte, NC 28216
Complete and submit this form to the permit issuing regional office with the following:
• One copy of the project record drawings (plan & profile views of sewer lines) of the wastewater collection
system extension
+► Supporting design calculations (selected pumps, system curve, operating point, available storage if portable
generator(s) or storage greater than longest past three year outage reliability option selected y for any pump
stations permitted as part of this project
• Changes to the project should be clearly identified on the record drawings or in written summary form, Permit
modifications are required For any changes resulting in non-compliance with this permit, regulations or
rinimura design criteria.
This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all
required supporting documentation have been received by the Division. Therefore, it is highly recommended
that this certification be sent in a manner that provides proof of receipt by the Division,
ENGINEER'S CERTIFICATION
U Partial 'Final
Cinartta E. 5 ktA , as a duly registered Professional Engineer in the State of North Carolina, having been
A4..horized to observe (periodically, El weekly, El full time) the construction of Griffith St. Pump Station
Modifications, a Mecklenburg County project for the Permittee, hereby stale that, to the best of my abilities, due care
and diligence was used in the observation of the construction such that the construction was observed to be built
within substantial compliance of this permit, 15A NCAC 2T; the Division of Water Quality's (Division) Gravity Sewer
Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the
Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting
materials.
North Carolina Professional Engineer's
seal, signature, and date:.
_._ nmatio
C�ffiAr'
SEND THIS FORM & SUPPORTING DOCUMENTATION
WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS
MOORESVILLE REGIONAL OFFICE
SURFACE WATER PROTECTION
610 EAST CENTER AVENUE, SUITE 301
MOORESVILLE NC 28115
The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any
wastewater flow made tributary to the wastewater collection system extension prior to completion of this
Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate
enforcement actions.

)b
0
DIVISION OF WATER QUALITY
Dec 1taa der
-
0ff3e,
Surfrlce titer ion•, NCI NR
610'East Center.Aveuut uit 01
1 1oore'vi11e, forth (arohn a ' 115
1PiENAL Fngineerirtg Certification:
ir.LE REGIONAL
432004 1 0)
No, WQ0Cl52895
iftitla St . c t I'trnap Station -- Cho rlcatte Heckler bur f Ct
egar \1;. Brofsis,
[rocTo:;td Iair=°r +
rectPun
cord d rya
her
anal Fa
Track 11 ra rnnr Certi
an (I er ait No, ' 00 2S 5) and one c
Supporting design calculations- for the pump station
1 a >itla the partial certific atican can 1\'`T<art h 26, 2010,
and if yf have any fittest'
at 04-41-2558,
titicKIM Sic CREED, , T',A,
tor ject
ccamrneaatr , do n
IC.: Brian 1' rtr "li ar cattc: ecl lcialarr tint
enrai °altar t, I' P (harlottc ;\Flecklech rr�t; CTt
Stuart Rost raberr,er°, Ch arlsatte 1�Iec I lentaur C ftilit;