WQ0041073_Application_20190819

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TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS. RECEIVEIDINCI)ENR/DWR
AUG 2 2019
WQROS
MOORESVILLE REGIONAL OFFI(;(:
TRANSMITTAL
TO: NCDEQ
610 East Center Avenue, Suite 301
Mooresville. North Carolina 28115
Attn: Ori Tuvia
® ENCLOSED PLEASE FIND:
❑ WE ARE SENDING UNDER SEPARATE COVER:
Date: 07/31/19 Job #: 41041
Project: SPCC STEM Building
Reference: Sewer Extension
Copies Sent To:
COPIES--
DATE —
DESCRIPTION
1
07/30/19
1
Cover Letter
1
02/15/19
1
Check #20408 - $480.00 Review Fee
2
07/31/19
8
Fast Track Sewer App. (FTA 04-16 , 1 orig. 1 copy
2
07/31/19
6
Flow Tracking/Accept. App. (FTSE 04-16 , 1 orig. 1 copy
2
06/26/19
1
Site Ma USGS
06/26/19
6
Forcemain Improvements Memorandum
2
06/25/19
1
C400 — Offsite Forcemain Plan and Profile
THESE ITEMS ARE TRANSMITTED: For a Fast Track Sanitary Sewer review and approval.
If enclosures are not as noted, please notify us at once.
COMMENTS:
To Whom It May Concern:
The included documents are being submitted for a Sewer Extension Permit. The work is part of the SPCC STEM
project in Monroe, NC. For any questions please call Jason Dolan at 704-900-4945.
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TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
July 30, 2019
610 East Morehead Street P 704.602.8600
Suite 250 F 704.376.1076
Charlotte, NC 28202 www.timmons.00m
Re: SPCC STEM — Fast Track Sewer System Extension Application Cover Letter
To Whom It May Concern:
The purpose of this application is to make modifications to the existing pumpstation and forcemain
located along Old Charlotte Highway as a result of the construction of a new STEM Building on the South
Piedmont Community College property. The City of Monroe has researched the existing pumpstation and
forcemain but has been unable to locate the original permit. In the absence of the original permit, the
assumed permitted capacity is the firm capacity of the existing pump which is 226 gpm.
Following discussions with the City of Monroe, we have determined that the existing pumpstation and
forcemain is at or near capacity with the primary constraint being the forcemain diameter. In order to gain
additional capacity, we propose to replace the existing 4-inch diameter forcemain to a 6-inch diameter
forcemain. This adjustment will result in less friction loss in the piping and allow the existing pumps to
operate more efficiently. Based on the pumpstation and forcemain calculations, the increased capacity of
the system will allow us to discharge at a higher rate, up to 470 gpm.
The proposed Daily Design Flow for the initial phase of construction is 15,000 gpd, however we have
--included-an-additional-15 000-gpd-for- future -expansion of the campus for -a -total -requested flow-of-,387000--- —
gpd. 111006
Although the South Piedmont Community College STEM Building project will not require the full additional
capacity achieved by increasing the forcemain diameter, the additional capacity provided by the proposed
improvements can be used to support future nearby industrial development and further expansion of the
South Piedmont Community College campus.
Items included with this submittal are:
a. One (1) Original and One (1) Copy of Fast Track Sewer System Extension Application
b. Application Fee, $480, payable to NCDEQ
c. Flow Tracking/Acceptance Form (FTSE 04-16)
d. Site Map
e. Engineer's Memorandum (Forcemain Improvements)
Sincerely,
�V•
Brian V. Crutchfield, PE, PLS
Principal
Timmons Group
cc:
Mr. Russell Colbath, PE — City of Monroe
Mr. Thomas Gragnano, AIA, LEED AP — Morris Berg Architects
CIVIL ENGINEERING I ENVIRONMENTAL I SURVEYING I GIs I LANDSCAPE ARCHITECTURE I CONSTRUCTION SERVICES

State of North Carolina
Department of Environmental Quality
Division of Water Resources
15A NCAC 02T .0300 — FAST TRACK SEWER SYSTEM EXTENSION APPLICATION
Division of Water Resources FTA 04-16 & SUPPORTING DOCUMENTATION
Application Number: w Q oo 1 L 03(to be completed by D") A U G) c ;,, I t
All items must be completed or the application will be returned
I. APPLICANT INFORMATION:
1. Applicant's name: City of Monroe (company, municipality, HOA, utility, etc.)
2. Applicant type: ❑ Individual
❑ Corporation ❑ General Partnership
❑ Federal
❑ State/County ® Municipal
3. Signature authority's name: Russell Colbath per 15A NCAC 02T .0106(b)
Title: Director
4. Applicant's mailing address: 2401 Walkup Avenue
City: Monroe State: NC
Zip: 28111-
5. Applicant's contact information:
Phone number: [phone]
Email Address: rcolbathna,monroenc.org
II. PROJECT INFORMATION:
lNo Ro's
MOORESVIL.LE REGlONRI-
❑ Privately -Owned Public Utility
❑ Other
STEMBaflding
2. Application/Project status: ® Proposed (New Permit) ❑ Existing Permit/Project
If a modification, provide the existing permit number: WQ00 and issued date:
If new construction but part of a master plan, provide the existing permit number: WQ00
3. County where project is located: Union
4. Approximate Coordinates (Decimal Degrees): Latitude: 35.029911' Longitude:-80.6131941
5. Parcel ID (if applicable): 09366004A
(or Parcel ID to closest downstream sewer)
III. CONSULTANT INFORMATION:
1. Professional Engineer: Brian V. Crutchfield License Number: 34288
Firm: Timmons Group
Mailing address: 610 East Morehead Street, Suite 250
City: Charlotte State: NC Zip: 28202-
Phone number: [phone] Email Address: [e-mail]
IV. WASTEWATER TREATMENT FACILITY (WWTF) INFORMATION:
1. Facility Name: City of Monroe WWTP Permit Number: NC 0024333
Owner Name: City of Monroe
V. RECEIVING DOWNSTREAM SEWER INFORMATION (if different than WWTF):
1. Permit Number(s): WQ0009754 Downstream (Receiving) Sewer Size: 8 inch
- System Wide Collection System Permit Number(s) (if applicable): WQCS00026
Owner Name(s): City of Monroe
r
FORM: FTA 04-16 Page 1 of 5

V1
GENERAL REQUIREMENTS
1. If the Applicant is a Privately -Owned Public Utility, has a Certificate of Public Convenience and Necessity been attached?
❑ Yes ❑No ®N/A
2. If the Applicant is a Developer of lots to be sold, has a Developer's Operational Agreement (FORM: DEV) been attached?
❑ Yes ❑No ®N/A
3. If the Applicant is a Home/Property
Owners' Association has an Operational Agreement (FORM: HOA) been attached?
❑ Yes ❑No ®N/A
4. Origin of wastewater: (check all that
apply):
❑ Residential Owned
❑ Retail (stores, centers, malls) ❑ Car Wash
❑ Residential Leased
❑ Retail with food preparation/service ❑ Hotel and/or Motels
® School / preschool / day care
❑ Medical / dental / veterinary facilities ❑ Swimming Pool /Clubhouse
❑ Food and drink facilities
❑ Church ❑ Swimming Pool/Filter Backwash
❑ Businesses / offices / factories
❑ Nursing Home ❑ Other (Explain in Attachment)
5. Nature of wastewater: 100 % Domestic/Commercial . % Commercial
% Industrial (See 15A NCAC 02T .0103(20))
o Is there a Pretreatment Program in effect? ❑ Yes ❑ No
6. Has a flow reduction been approved under 15A NCAC 02T .0114(fl? ❑ Yes ® No
➢ If Yes, provide a copy of flow reduction approval letter
7. Summarize wastewater generated by project:
School without cafeteria, gym or showers
[y uesign rlow
iNo. of units)
rlow
10 gal/student
1,500
15,000 GPD
gal/
GPD
gall
GPD
gal/
GPD
gal/
GPD
gal/
GPD
Total
15,000 GPD
a See 15A NCAC 02T .0114(b), (d), (e)(1) and (e)(2) for caveats to wastewater design flow rates (i.e., minimum flow per
dwelling; proposed unknown non-residential development uses; public access facilities located near high public use areas;
and residential property located south or east of the Atlantic Intracoastal Waterway to be used as vacation rentals as defined
in G.S. 42A-4).
b Per 15A NCAC 02T .0114(c), design flow rates for establishments not identified [in table 15A NCAC 02T.01141 shall be
determined using available flow data, water using fixtures, occupancy or operation patterns, and other measured data.
8. Wastewater generated by project: 0.0150 GPD (per 15A NCAC 02T .0114)
➢ Do not include future flows or previously permitted allocations
If permitted flow is zero, indicate why:
❑ Pump Station or Gravity Sewer where flow will be permitted in subsequent permits that connect to this line
❑ Flow has already been allocated in Permit Number:
❑ Rehabilitation or replacement of existing sewer with no new flow expected
❑ Other (Explain):
FORM: FTA 04-16 Page 2 of 5

VII. GRAVITY SEWER DESIGN CRITERIA (If Applicable) - 02T .0305 & MDC (Gravity Sewers):
1. Summarize gravity sewer to be permitted:
Size (inches) Length (feet) Material
➢ Section II & III of the MDC for Permitting of Gravity Sewers contains information related to design criteria
➢ Section III contains information related to minimum slopes for gravity sewer(s)
➢ Oversizing lines to meet minimum slope requirement is not allowed and a violation of the MDC
VIII. PUMP STATION DESIGN CRITERIA (If Applicable) — 02T .0305 & MDC (Pump Stations/Force Mains):
COMPLETE FOR EACH PUMP STATION INCLUDED IN THIS PROJECT
1. Pump station number or name: Charlotte Avenue
2. Approximate Coordinates (Decimal Degrees): Latitude: 35.029911' Longitude:-80.613194'
gallons -per day (firm
4. Operational point(s) of the pump(s): 470 gallons per minute at 68 feet total dynamic head (TDH)
5. Summarize the force main to be permitted (for this Pump Station):
Size (inches)
Length (feet)
Material
6
1,903.34
FPVC
6. Power reliability in accordance with 15A NCAC 02T .0305(h)(1):
® Standby power source or pump with automatic activation and telemetry -15A NCAC 02T .0305(h)(1)(B):
➢ Required for all pump stations with an average daily flow greater than or equal to 15,000 gallons per day
➢ Must be permanent to facility
Or if the pump station has an average daily flow less than 15,000 gallons per day:
❑ Portable power source with manual activation, quick -connection receptacle and telemetry - 15A NCAC 02T
.0305(h)(1)(C)
or
❑ Portable pumping unit with plugged emergency pump connection and'ielemetry -15A NCAC 02T .0305(h)(1)(C):
➢ It shall be demonstrated to the Division that the portable source is owned or contracted by the applicant (draft agreement)
and is compatible with the station.
➢ If the portable power source or pump is dedicated to multiple pump stations, an evaluation of all the pump stations' storage
capacities and the rotation schedule of the portable power source or pump, including travel timeframes, shall be provided
in the case of a multiple station power outage.
FORM: FTA 04-16 Page 3 of 5

IX. SETBACKS .& SEPARATIONS — (02B .0200 & 15A NCAC 02T .0305(f)):
1. Does the project comply with all separations found in 15A NCAC 02T .0305(f) & (g) ® Yes []No
➢ 15A NCAC 02T.0305(fl contains minimum separations that shall be provided for sewer systems:
Setback Parameter*
Separation Required
Storm sewers and other utilities not listed below vertical
24 inches
Water mains vertical -water over sewer including in benched trenches
18 inches
Water mains horizontal
10 feet
Reclaimed water lines vertical - reclaimed over sewer
18 inches
Reclaimed water lines horizontal - reclaimed over sewer
2 feet
**Any private or public water supply source, including any wells, WS-I waters of Class I or
Class II impounded reservoirs used as a source of drinking water
100 feet
**Waters classified WS (except WS-I or WS-V), B, SA, ORW, HQW, or SB from normal
high water or tide elevation and wetlands see item IX.2
50 feet
**Any other stream, lake, impoundment, or ground water lowering and surface drainage
ditches
10 feet
Any building foundation
5 feet
Any basement
10 feet
Top slope of embankment or cuts of 2 feet or more vertical height
10 feet
Drainage systems and interceptor drains
5 feet
Any swimming pools
10 feet
Final earth grade vertical
36 inches
contains alternatives where separations in cannot be achieved.
➢ **Stream classifications can be identified using the Division's NC Surface Water Classifications webpage
➢ If noncompliance with 02T.0305(fl or 60, see Section X of this application
2. Does the project comply with separation requirements for wetlands? (50 feet of separation) ❑ Yes ®No ❑ N/A
➢ See the Division's draft separation requirements for situations where separation cannot be meet
➢ No variance is required if the alternative design criteria specified is utilized in design and construction
➢ As built documents should reference the location of areas effected
3. Does the project comply with setbacks found in the river basin rules per 15A NCAC 02B .0200? ® Yes ❑ No ❑ N/A
➢ This would include Trout Buffered Streams per 15A NCAC 2B.0202
4. Does the project require coverage/authorization under a 404 Nationwide or ❑ Yes ® No
individual permits or 401 Water Quality Certifications?
➢ Information can be obtained from the 401 & Buffer Permitting Branch
5. Does project comply with 15A NCAC 02T.0105(c)(6) (additional permits/certifications)? ® Yes ❑ No
Per 15A NCAC 02T.0105(c)(6), directly related environmental permits or certification applications are being prepared, have
been applied for, or have been obtained. Issuance of this permit is contingent on issuance of dependent permits (erosion and
sedimentation control plans, stormwater management plans, etc.).
6. Does this project include any sewer collection lines that are deemed "high -priority?"
Per 15A NCAC 02T.0402, "high -priority sewer" means "any aerial sewer, sewer contacting surface waters, siphon, or sewer
positioned parallel to streambanks that is subject to erosion that undermines or deteriorates the sewer.
❑ Yes ® No ❑ N/A
➢ If yes, include an attachment with details for each line, including type (aerial line, size, material, and location).
High priority lines shall be inspected by the permittee or its representative at least once every six -months and inspections
documented per 15A NCAC 02T.0403(a)(5) or the permitee's individual System -Wide Collection permit.
FORM: FTA 04-16 Page 4 of 5

X. CERTIFICATIONS:
1. Does the submitted system comply with i_ r�.__' __f_; the \Imimum Design 0-atria tur the PQr1iii1u11g of Pumh stations
Mid F�orcc ,plains ILit cst vcLsiLmL and the Ciray m Sc%cer A11nu1uun Design t latest v r,iom as applicable?
® Yes ❑ No
If No, complete and submit the Variance/Alternative Design Request application (VADC 10-14) and supporting documents for
review. Approval of the request is required prior to submittal of the Fast Track Application and supporting documents.
2. Professional Engineer's Certification:
I, RIA Ny • C1ZUTci4ri eL-D attest that this application for
(Professional Engineer's name from Application Item III.I .)
has been reviewed by me and is accurate, complete and consistent with the information supplied in the plans, specifications,
engineering calculations, and all other supporting documentation to the best of my knowledge. I further attest that to the best
of my knowledge the proposed design has been prepared in accordance with the applicable regulations, Gravity Sewer
Minimum Design Criteria for Gravity Sewers (latest version), and the Minimum Design Criteria for the Fast -Track Permitting
of Pump Stations and Force Mains (latest version). Although other professionals may have developed certain portions of this
submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and
have judged it to be consistent with the proposed design.
NOTE — In accordance with General Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation.,,i oll,!ogo" .
North Carolina Professional Engineer's seal, signature, and date:
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3. Applicant's Certification per 15A NCAC 02T .0106(b):
I, VSs "k\ es OJrCeS '0�re4;ftt . _attest that this application for
(Signature Autho ty's name & title from Application Item 1.3.)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that if all required parts of
this application are not completed and that if all required supporting documentation and attachments are not included, this
application package is subject to being returned as incomplete. I understand that any discharge of wastewater from this non -
discharge system to surface waters or the land will result in an immediate enforcement action that may include civil penalties,
injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a condition
of this permit be violated. I also understand that if all required parts of this application package are not completed and that if
all required supporting information and attachments are not included, this application package will be returned to me as
incomplete.
NOTE — In accordance with General Statutes 141 S.b.A and 1_-'- 15 (, any person who knowingly makes any false
statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor, which may
include a fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation.
Signature:., �Z Date:
FORM: FTA 04-16 Page 5 of 5

State of North Carolina
Department of Environmental Quality
Division of Water Resources
'" Flow Tracking/Acceptance for Sewer Extension Applications
Division of MAter Resources
(FTSE 04-16)
Entity Requesting Allocation: City of Monroe
Project Name for which flow is being requested: SPCC Multi -Purpose STEM Building
More than one FTSE may be requiredfor a single project if the owner of the WWTP is not responsible for all pump
stations along the route of the proposed wastewater flow.
I. Complete this section only if you are the owner of the wastewater treatment plant.
a. WWTP Facility Name: City of Monroe WWTP
b. WWTP Facility Permit #: NC 0024333
c. WWTP facility's permitted flow
d. Estimated obligated flow not yet tributary to the WWTP
e. WWTP facility's actual avg. flow
All flows are in MGD
10.4
0.672
7.985
f. Total flow for this specific request 0.0150
g. Total actual and obligated flows to the facility 8.672
h. Percent of permitted flow used 83.4
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
Average Daily
Approx.
Not Yet
Total Current
Station
Firm Flow* *
Current Avg.
Tributary
Flow Plus
(Name or
Capacity, * (Firm / p fl,
Daily Flow,
Daily Flow,
Obligated
Available
Number)
MGD MGD
MGD
MGD
Flow
Capacity***
Charlotte 0.33840 0.13536 0.064377 0.0150 0.079377 0.055983
* The Firm Capacity of any pump station is defined as the maximum pumped flow that
can be achieved with the largest pump taken out of service.
** Design Average Daily Flow is the firm capacity of the pump station divided by a peaking
factor (pf) not less than 2.5.
*** A Planning Assessment Addendum shall be attached for each pump station located
between the project connection point and the WWTP where the Available Capacity is < 0.
Downstream Facility Name (Sewer): Monroe WWTP
Downstream Permit Number: NCO024333
Page 1 of 6
FTSE 04-16

III. Certification Statement:
I Russell Colbath 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 indicates acceptance of this wastewater flow.
Signing Official Signature
Date
Page 2 of 6
FTSE 04-16

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
5.5983 % and 0.0150 MGD of the Available Capacity (E) in Pump Station
Charlotte ; and that
b. The rate of activation of this obligated, not yet tributary capacity is currently approximately
0.0150 MGD per year; and that
c. A funded Capital Project that will provide the required planned capacity, namely
N/A is in design or under construction with
planned completion in ; and/or
d. , The following applies: .
The Master Plan for the South Piedmont Community College campus includes
construction of additional buildings that will add 0.0 15 0 MGD to the firm capacity of the
pump station. The pump station capacity will increase upon completion of the project
which includes upsizing the downstream forcemain from 4" to 6" in diameter. The Firm
Capacity of the smaller pump (both pumps are identical) will increase from 0.33840 to
0.67680 as the new pumping rate increases from 235 gpm to 470 gpm.
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
Date
Page 3 of 6
FTSE 04-16

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TIMMONS GROUP Suite250
YOUR vI-siON ACHIEVEo THROUGH OURS Charlotte, NC 28202
MEMORANDUM
To: Mr. Russell Colbath
Water Resources Director
City of Monroe
From: Brian V. Crutchfield, PE, PLS
RE: SPCC Multi -Purpose STEM Building — Forcemain Improvements
Date: June 26, 2019
P 704.602.8600
F 704.376.1076
www.timmons.com
This packet contains the calculations used to analyze the existing Old Charlotte Highway pumpstation
and forcemain. All calculations are based on the flow data and existing pumpstation information provided
by the City of Monroe as summarized below:
Pump 1: Flygt Model NP 3153 HT, Serial # 3153.185-1320046, 12 HP, 460 Volts,
16 Amp, 1765 RPM
Pump 2: Flygt Model NP 3153 HT, Serial # 3153.185-1320045, 12 HP, 460 Volts,
16 Amp, 1765 RPM
- Wet Well: 8-foot diameter, 19-feet deep, precast concrete, 4-inch forcemain,
discharge elevation = ? (to be verified by designer), invert(s) of influent = ? (to be
verified by designer)
- Head and Discharge Information per Drawdown Test (6/1/17):
o Height difference from pressure gauge to water level in wetwell = 172-inches
o Gauge Offset (Pressure Gauge from Top of Wetvell) = 6-inches
o Pump 1 Operation Drop Depth = 14.75-inches, FM Pressure = 29 PSI, 230.84
GPM
o Pump 2 Operation Drop Depth = 15.25-inches, FM Pressure = 30 PSI, 238.66
GPM
o Pump 1 & 2 Operating Drop Depth = 16.25-inches, FM Pressure = 30 PSI,
254.31 GPM
o FM Static Pressure = 0 PSI
- Information to determine Average Daily Flow into Station. Typically we use the
latest readings and 3 months prior to determine the total hours:
o Pump 1 and 2 Drawdown Values — See above
o Pump 1 Hour Meter Value
11 Feb 26, 2018 — 3145 hours
■ May 2018 — 3350 hours
o Pump 2 Hour Meter Value
El Feb 26, 2018 — 3074 hours
May 2018 — 3274 hours
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CIVIL ENGINEERING ENVIRONMENTAL SURVEYING I GIS I LANDSCAPE ARCHITECTURE I CONSTRUCTION SERVICES

Wastewater Pump Station Calculations
Project: SPCC PS/FM
TG Project No: 41041
Prepared by: C. Petree
Prepared on: February 7, 2019
Date Revised: June 26, 2019
Description
Pump 1 Discharge
Pump 2 Discharge
Pump 1 Run Time
Pump 2 Run Time
Elapsed Days
Hours of operation per day
Total Gallons Pumped
Average Daily Flowrate
Average Daily Flowrate
Peak Factor Used
Design Peak Influent Rate
Design Pumping Rate
Description
Wetwell Diameter
Minimum Pump Cycle Time
Unit Volume
Wet Well Drawdown Volume
Average Pump Run Time
Average Pump Cycle Time
Peak Pump Run Time
Peak Pump Cycle Time
Minimum Operating Depth
Description
100-year Flood Plain Elevation
Top of Wet Well Elevation
Lowest Invert In Elevation
High Level Alarm Elevation
Lag Pump On Elevation
Lead Pump On Elevation
Both Pumps Off Elevation
Pump entrance diameter
Minimum Submergence
Suction Entrance Elevation
Wetwell Floor Elevation
Depth of Wet Well
TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
Pump Station Capacity
Value
Units
Notes
230.84
gpm
From 6/1/17 Drawdown Test
238.66
gpm
From 6/1/17 Drawdown Test
205
hrs
Feb 26, 2018 through May 25, 2018
200
hrs
Feb 26, 2018 through May 25, 2018
88
days
Feb 26, 2018 through May 25, 2018
12
hrs
ASSUMED
5,703,252
gal
64,810
gpd
90
gpm
Accounts for daily hours of operation
2.50
225.03
gpm
235.00
gpm
Based on 6/1/17 Drawdown Test
Wet Well Sizing
Value
Units
Notes
8.0
feet
10
min
375.99
gal/ft
TP
58750
gal
V _
Based on 4
9.08
min
Based on control settings below
23.70
min
Time between pump starts
132.04
min
137.89
min
1.56
ft
Control Settings
Value
Units
Notes
0.00
ft AMSL
ASSUMED
649.00
ft AMSL
ASSUMED
638.00
ft AMSL
637.50
ft AMSL
0.50' Below Influent Line
63700
ft AMSL
0.50' Below High Level Alarm
636.50
ft AMSL
0.50' Below Lag Pump On
633.00
ft AMSL
3.50' Below Lead Pump On
4.00
inches
1.74
ft
630.50
ft AMSL
630.00
ft AMSL
19.00
ft
H.I. Stds: S=(1+2.3F)D where F=v(gD)-0S
2.50' Below Both Pump Off
6" Below Suction Entrance
Printed: 6/26/2019
SPCC PS Calcs

Wastewater Pump Station Calculations
Project: SPCC PS/FM
TG Project No: 41041
Prepared by: C. Petree
Prepared on: February 7, 2019
Date Revised: June 26, 2019
Description
Pump 1 Discharge
Pump 2 Discharge
Pump 1 Run Time
Pump 2 Run Time
Elapsed Days
Hours of operation per day
Total Gallons Pumped
Average Daily Flowrate
Average Daily Flowrate
Peak Factor Used
Design Peak Influent Rate
New Pumping Rate
Description
Wetwell Diameter
Minimum Pump Cycle Time
Unit Volume
Wet Well Drawdown Volume
Average Pump Run Time
Average Pump Cycle Time
Peak Pump Run Time
Peak Pump Cycle Time
Minimum Operating Depth
Description
100-year Flood Plain Elevation
Top of Wet Well Elevation
Lowest Invert In Elevation
High Level Alarm Elevation
Lag Pump On Elevation
Lead Pump On Elevation
Both Pumps Off Elevation
Pump entrance diameter
Suction Entrance Elevation
Wetwell Floor Elevation
Depth of Wet Well
TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
Pump Station Capacity
Value
Units
Notes
230.84
gpm
From 6/1/17 Drawdown Test
238.66
gpm
From 6/1/17 Drawdown Test
205
hrs
Feb 26, 2018 through May 25, 2018
200
hrs
Feb 26, 2018 through May 25, 2018
88
days
Feb 26, 2018 through May 25, 2018
12
hrs
ASSUMED
5,703,252
gal
64,810
gpd
90
gpm
Accounts for daily hours of operation
2.50
225.03
gpm
470.00
gpm
Based new 6" FM and Existing Pump
Wet Well Sizing
Value
Units
Notes
8.0
feet
10
min
375.99
gal/ft
TP
1175.00
gal
V _
Based on 4
3.46
min
Based on control settings below
18.08
min
Time between pump starts
5.37
min
11.22
min
3.13
ft
Control
Settings
Value
Units
Notes
0.00
ft AMSL
ASSUMED
649.00
ft AMSL
ASSUMED
638.00
ft AMSL
637.50
ft AMSL
0.50' Below Influent Line
637.00
ft AMSL
0.50' Below High Level Alarm
636.50
ft AMSL
0.50' Below Lag Pump On
633.00
ft AMSL
3.50' Below Lead Pump On
4.00
inches
3.14
ft
H.I. Stds: S=(1+2.3F)D where F=v(gD)-0.5
630.50
ft AMSL
' Below Both Pump Of
630.00
ft AMSL
6" Below Suction Entrance
19.00
ft
Printed: 6/26/2019
SPCC PS Calcs