WQ0032432_Regional Office Historical File 2016

T. A Haney
Consulting Engineers, PA
February 26, 2016 [wat
Mr. Tim HeimDivision of Water ResourcesF Non -Discharge Permitting Unit
North Carolina Department of
.Environment and Natural Resources <<
2090 US Highway 70 '
Swannanoa, North Carolina 28778
RE:. Engineer's Certification (Partial)
Valley River Sewer Pump Station
Town of Andrews
Cherokee County, North Carolina
Permit No. WQ0032432
Dear Mr. Heim:
Please find enclosed one (1) copy of the following for the above mentioned project:
• Engineering Certification (Partial)
• Design Calculations
• Record Drawings
The portion of this project which has been installed and completed consists of one (1) duplex
sewer pump station and permanent emergency generator, 24 linear feet of 8-inch gravity sewer line
and approximately 1,285 linear feet of 6-inch sewer force main. Due to changes in the planned use of
the property, the sewer pump station and generator have been relocated to a site adjacent to the North
Carolina Department of Transportation Right -of -Way for US 19/29/74 and the sewer force main was
redirected on to the NCDOT Right -of -Way rather than across the property. No service connections
were installed with this phase of construction.
If you have any questions, or require additional information, do not hesitate to call.
Sincerely,
T. D. Haney Consulting Engineers, PA
4-7 T. Dean Haney, PE
Enclosures.
cc: Ed Burchins w/encl.
14-102/26febl6
69 Jenkins Valley load Alexander, North Carolina 28701
[phone]

Division of beater Resources
ENGINEERING CERTIFICATION — POST CONSTRUCITION I
VVatcr r)t t 3!it! R^CiOr??.! C}nGrations
System Description: approximately 40 linear feet of 12-inch diameter gravity -sewer, a 180 duplex
style sewage pumping station with audible and visual high water alarms, a permanently ins led
emergency power generator with automatic transfer switch and telemetry and 13,050 line f et of 6-
inch diameter force main
Complete and submit this form to the Asheville 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 re -uired 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
I, , as a duly registered Professional Engineer in the State of North Carolina,
a olina, having
been authorized to observe (❑ periodically, ❑ weekly, ❑ full time) the construction of the above referenced
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 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:
.... ..... _............................................
SEND THIS FORM & SUPPORTING DOCUMENTATION
WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS
ROGER C. EDWARDS
SURFACE WATER PROTECTION SUPERVISOR
ASHEVILLE REGIONAL OFFICE
2090 US HIGHWAY 70
SWANNANOA, NC 28778
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.

tOJECT NAME-
..tOJECT #
PUMP STATION NAME -
Proposed Flow =
Pump Design =
(2.5 X Average Flow)
Valley River SPS
14-102
VR-PS#1
DiVfSloil^.i Yb<'a.af i�rJ ±r GICoS
FEB 2 9 2016
Witer CJualiti, nlr,n�l Cr„ratiC'
As -::
62 gpm
180 gpm
Distance From PS to High Point - 6,500 ft.
Distance From High Point to 4-Inch Connection - 5,000 ft.
Distance From 4-Inch Connection to Discharge - 4,500 ft.
TOTAL DISTANCE 15,800 ft.
Pumps Off Elev. - 1,600 ft
Elev. @ High Point in Line - 1,750 ft
Elev. @ 4-Inch Connection - 1,680 ft
Elev. @ Discharge Point - 1,645 ft
FRICTION LOSS CALCULATIONS FROM PUMP STATION TO HIGH POINT
Q (Flow) _
L (Length) _
d (Diameter) _
C (Friction Coefficient) _
180 gpm
6,500 ft
6 in
140 Hazen Williams
Hf = 0.002083 X L X (100/C)^1.85 X (Q^1.85/d^4.8655)
Q
Hf
He
TDH
130
7
150
157
180
18
150
168
230
21
150
171
FRICTION LOSS CALCULATIONS FROM HIGH POINT TO 4-INCH CONNECTION
Q (Flow) _
L (Length) _
d (Diameter) _
C (Friction Coefficient) _
180 gpm
5,000 ft
6 in
140 Hazen Williams
Hf = 0.002083 X L X (100/C)^1.85 X (QA1.85/dA4.8665)
Q
Hf
He
TDH
130
7
-70
-63
180
14
-70
-56
230
21
-70
-49

FRICTION LOSS CALCULATIONS FROM 4-INCH CONNECTION TO DISCHARGE
* Final Pump Calculations Based on Future
Replacement of Existing 4" SFM With 6" Pipe
Q (Flow) = 180 gpm
L (Length) _ 4,300 ft
d (Diameter) = 6 in"
C (Friction Coefficient) = 140 Hazen Williams
Hf = 0.002083 X L X (100/C)"1.86 X (Q^1.85/dA4.8655)
Q
Hf
He
TDH
150
8
-35
-27
180
12
-35
-23
210
16
-35
-19
TOTAL HEAD LOSS DESIGN CALCULATIONS
Total Head Loss =
TDH From High Point to Discharge Point + TDH From Pump to High Point
TDH From Pump to High Point -
TDH From High Point to 4-Inch Connection -
TDH From 4-Inch (6") Connection to Discharge
Point -
Design Flow =
TDH =
168 ft.
-56 ft.
-23 ft.
180 gpm
168 ft

IE-
PUMP STATION NAME -
Valley River SPS
14-102
VR-PS #1
Concrete Wt. =
150 Ibs/cf 4,000 Ibs/cy
Earth Overburden Wt. =
45 Ibs/cf
Water Wt. =
62.4 Ibs/cf
(A.)
Inside Diameter =
120 in.
Volume per foot of wall height
Inside Diameter =
10 ft.
= Outside Dia. Area - Inside Dia. Area
Wall Thickness =
10 in.
= 28.35 cu.fL
Outside Diameter =
140 in.
Outside Diameter =
11.7 IL
Weight of Manhole per foot of wall height
= Volumn per foot of wall height X Concrete Wt.
= 4252lbs/ft
100 Year Flood Elev. 1607.6 ft.
Weight of Water per foot of wall height = Inside Dia. Area X Water Wt.
4898 Ibs/ft
(B•)
USE WITH STANDARD MANHOLE BASE SECTION
Base Thickness = 0 in. Volume of base = Outside Dia. Area X Base Thickness
Base Thickness = 0 ft. = 0.00 cu. ft.
Weight of base = Volume of Base X Concrete Wt
0 lbs.
(C-)
USE WITH EXTENDED BASE SECTION
Extended Base Area = 168.0 sq. ft. Volume of base = Extended Base Area X Base Thickness
210.00 cu. ft.
Base Thickness = 15 in.
Base Thickness = 1.26 fL Weight of base = Volume of Base X Concrete Wt.
r = 31500lbs.
Earth Overburden Area = Extended Base Area - Outside Dia. Area
61.15 sq. ft.
Earth Overburden Weight per foot of depth = Earth Overburden Area X Earth Overburden Wt.
= 2752lbs/ft
Ground
Elev.
Top Wet
Well
InvL Elev.
Depth Wet
Well
Wt. Riser
Wt Base'.,
Earth Overburden
Total Wt.
Water Wt.
Add.
Concrete Wt.
1,609.00
11,610.00
1 1,597.00
1 13.00
1 55,277
31,500
33,023.
119,800
51,923
-67,877
ADDITIONAL CONCRETE BALLAST = -17.0 CY
' Use Section B with Standard Manhole Section or Section C with Extended Base Section
" Add Earth Overburden only with Extended Base Manholes