SW6190802_2019-08-27 Storm Calcs_9/9/2019

Fire Flow Calculations
For
Project:
FOUR SIERRA RANCH
Cumberland County, NC
Owner:
CRAZY WOMAN READINESS TRAINING
FACILI Y LLC
9{ s
SEAL
31459
'. yr 'r��GINE��. •°�t5 ��
A.
�q
Prepared by:
ENGINEERING - SURVEYING - DESIGNING - DRAFTING
Larry King & Associates, R. L.S., P.A.
P.O. Box 53787
1333 Morganton Road, Suite 201
Fayetteville, North Carolina 28305
P. [phone] F. [phone]
www.LKandA.com
Firm License #: C-887

Narrative
Included is the analysis of the expected fire flow conditions for the proposed water
main extension project located in the proposed Four Sierra Ranch Subdivision
located on the South side of Doc Bennet Road. There is an existing 16" Ductile
Iron water main that will be tapped with an 8" main to serve the proposed Four
Sierra Ranch subdivision. It is anticipated the maximum number of connections to
the system will be 14 domestic services. This represents an increase in demand of
approximately 3.92gpm (14 lots X 0.28gpdm/lot (400gpd/lot). The Hydrant Flow
test was performed on Doc Bennett Road.
A water model has been prepaivd using EPAnet 2.0 soflwaiv to evaluate the ability
of the proposed system to support a minimum lire flow requirements.
An exhibit map is attached with pertinent nodes labeled for reference. Three of the
proposed fire hydrants were given a demand of 1000 gallons per minute (see Fire
Flow Predictions below) to confirm that all nodes in the system maintain a
minimum pressure of 20 psi. The results for each are summarized below as
separate "runs" that represent each fire h\ drant.
The water system is represented by a "Psuedo Pump" prepared using hydrant flow
test data performed by PWC on July 20, 201 S. A copy of the hydrant flow data is
included and is summarized below:
Operating Pressure
0 gpm
@
83 psi
Residual Pressure
3560 gpm
@
53 psi
Calculated Flow @ 20 psi
5,314 gpm
@
20 psi
Fire Flow Predictions
The proposed Four Sierra Ranch —project is planned for —14 single-family lots.
According to Appendix B of the 2012 North Carolina Fire Code, the development
is required to maintain a minimum of 1000 gpm at 20 psi for at least one hour. A
friction coefficient of C=120 is used for all pipes.

Hydrant Run Summary
Run #
FH #
Flow
Input
m
Pressure
Si
Notes
1
008313
0
90.70
-83 psi, ok
2
008312
3560
58.11
-53 si, ok
3
1
2000
64.16
>20 psi, ok

Pump Report for Hydrant 008313
Flow Test Input Data
Static Pressure 83 psi 3560 gpm
Residual Pressure 53 psi
Fire Flow Pressure 20 psi
Pump Summary Elev.- 181
(ft) (gpm)
Shutoff Head 191.73 372.7 Shutoff Discharge 0
Design Head 122.43 303.4 Design Discharge 3,560
Maximum Operating Head 46.2 227.2 Maximum Operating Discharge 5,314
250
200
$ 150
-o
M
aU
= 100
50
0
Pump Curve - Hydrant 171906
0 3,560 5,314
Discharge (gpm)

HYDRANT FLOW TEST FORM DOC#
RESIDUAL HYD LOCATION:
HYD NUMBER: SIZE OFMAIN: STATIC PRESSURE: gs
LOCATION: -7�r -e
-ellrfell-
TEST HYD NOZZLE SIZE.-,? PITOT (PSI): 26-
. ............. . ...... .
NUMBER: SIZE OF MAIN:
TEST HYD 2:
LOCATION:
NUMBER: 00931�4
TEST HYD 3:
LOCATION:
NOZZEL SIZE: Z�
,enne
PITOT (PSI): 3 0
pl-ellu (/W-
<720
SIZEOFMAIN:
. . ......... . . ....
NUMBER: SIZE OF MAIN: 25&0 4) 40 " �,, /
----------------------------------------------------------------------------------------------------- "
STATIC PRESSURE: 63 DATE: 7- ot) - IX
RESIDUAL PRESSURE: t5-3 TIME: 3,* 3,,) 4oi
TOTAL FLOW:
'low "YOR MT

RUN1-STATIC-CALIBRATION.txt
Page 1 9/21/2018 2:24:01 PM
E P A N E T
Hydraulic and water Quality
j` Analysis for Pipe Networks
version 2.0
icirir:r�'c�'ciri:isiri:iririr:c:cl:ir:::c:ci:4c:::::ciciciriczr:c:c::ic4e::4ri:iciric:::c4ric'.c4::ric4:is'ei:::4:ico'r:r::':irici:4::ri: �•ic:c
Input File: FSRANCH.net
Four Sierra Ranch subdivision
Runl-static Calibration
Flow Test=83psi
Link - Node Table:
Link
start
End
Length
Diameter
ID
---
Node
Node
ft
in
-----------------------------------------------------------------
1
1
2
485.37
16
2
2
3
261.56
16
3
3
4
110.06
16
4
4
5
111.50
16
5
5
6
963.70
16
6
3
7
8.13
8
7
7
8
97
8
8
8
9
7.69
8
9
9
10
119.51
8
10
10
11
6.44
8
11
11
12
93.83
8
12
12
13
3.28
8
13
13
14
92.55
8
14
14
15
8.81
8
15
15
16
46.12
8
16
16
17
7.05
8
17
17
18
2.48
2
18
18
19
50.03
2
19
19
20
5.45
2
20
20
21
38.17
2
21
21
22
2.86
2
22
22
23
3.46
2
23
23
24
20.62
2
24
25
4
#N/A
#N/A Pump
Energy usage:
usage Avg. Kw-hr Avg.
Peak
Cost
Pump Factor Effic. /Mgal Kw
----------------------------------------------------------------------
Kw
/day
24 100.00 75.00 1561.19 0.00
----------------------------------------------------------------------
0.00
0.00
Demand
Charge:
0.00
Total
Cost:
0.00
0
Page 2
Node Results:
---------------------------------
Node
Demand
------------------------
Head
Pressure
----------
Quality
ID
-----------------------------------------------------
GPM
ft
psi
1
0.00
372.70
92.96
----------------
0.00 FH008314
2
0.00
372.70
89.92
0.00
3
0.00
372.70
90.57
0.00
Page 1

RUN1-STATIC-CALIBRATION.txt
4
0.00
372.70
90.70
0.00 FH008313
5
0.00
372.70
91.01
0.00
6
0.00
372.70
89.06
0.00 FH008312
7
0.00
372.70
90.43
0.00
8
0.00
372.70
89.75
0.00
9
0.00
372.70
89.77
0.00
10
0.00
372.70
89.85
0.00
11
0.00
372.70
89.84
0.00
12
0.00
372.70
89.68
0.00
13
0.00
372.70
89.69
0.00
14
0.00
372.70
90.24
0.00
15
0.00
372.70
90.30
0.00
16
0.00
372.70
90.63
0.00
17
0.00
372.70
90.68
0.00
18
0.00
372.70
90.59
0.00
19
0.00
372.70
90.94
0.00
20
0.00
372.70
90.98
0.00
21
0.00
372.70
91.36
0.00
22
0.00
372.70
91.,8
0.00
23
0.00
372.70
91.30
0.00
24
0.00
372.70
91.43
0.00
25
0.00
0.00
0.00
0.00 Reservoir
Link Results:
--------------------------------------------------------------------
Link
Flow
velocityunit
�ie�dloss
-
Status
ID
GPM
fps
ft/Kft
----------------------------------------------------------------------
1
0.00
0.00
0.00
Oprn
2
0.00
0.00
0.00
Open
3
0.00
0.00
0.00
Open
4
0.00
0.00
0.00
open
5
0.00
0.00
0.00
Oper..
6
0.00
0.00
0.00
Open
7
0.00
0.00
0.00
Open
8
0.00
0.00
0.00
open
9
0.00
0.00
0.00
Open
10
0.00
0.00
0.00
open
11
0.00
0.00
0.00
open
12
0.00
0.00
0.00
Open
13
0.00
0.00
0.00
Open
14
0.00
0.00
0.00
Open
15
0.00
0.00
0.00
Open
16
0.00
0.00
0.00
Open
Page 3
Link Results: (continued)
Link
Flow
velocityunit
Headloss
Status
ID
GPM
fps
ft/Kft
----------------------------------------------------------------------
17
0.00
0.00
0.00
Open
18
0.00
0.00
0.00
Open
19
0.00
0.00
0.00
Open
20
0.00
0.00
0.00
Open
21
0.00
0.00
0.00
Open
22
0.00
0.00
0.00
open
23
0.00
0.00
0.00
open
24
0.00
0.00-372.70
Open Pump
Page 2

RUN2-RESIDUAL-CALIBRATION.TXT
Page 1 9/21/2018 2:36:41 PM
E P A N E T
Hydraulic and water Quality
Analysis for Pipe Networks
version 2.0
Input File: FSRANCH.net
Four Sierra Ranch subdivision
Run2-Residual Calibration
Flow Test=53psi
Link - Node Table:
Link
Start
End
Length Diameter
ID
----------------------------------------------------------
Node
Node
ft
in
1
1
2
485.37
----------
16
2
2
3
261.56
16
3
3
4
110.06
16
4
4
5
111.50
16
5
5
6
963.70
16
6
3
7
8.13
8
7
7
8
97
8
8
8
9
7.69
8
9
9
10
119.51
8
10
10
11
6.44
8
11
11
12
93.83
8
12
12
13
3.28
8
13
13
14
92.5)
8
14
14
15
8.81
8
15
15
16
46.12
8
16
16
17
7.05
8
17
17
18
2.48
2
18
18
19
50.03
2
19
19
20
5.45
2
20
20
21
38.17
2
21
21
22
2.86
2
22
22
23'
3.46
2
23
23
24
20.62
2
24
25
4
#N/A
#N/A
Pump
Energy Usage:
------------------------------------------------------
Usage
Avg. Kw-hr
- ------------
Avg. Peak
Cost
Pump
Factor
Effic. /Mgal
Kw Kw
/day
----------------------------------------------------------------
24
--------------------------------------...----------------------------
100.00
75.00 1270.90
271.46 271.46
-----
0.00
Demand Charge-
0.00
Total Cost:
0.00
u
Page 2
Node Results:
----------------------------------------------------------------------
Node
Demand
Head
Pressure
Quality
ID
-- -------------------------------------------------------------------
GPM
ft
psi
1
1840.00
301.48
62.10
0.00 FH008314
2
0.00
302.57
59.53
0.00
3
0.00
303.15
60.44
0.00
4
0.00
303.40
60.67
0.00 FH008313
Page 1

RUN2-RESIDUAL-CALIBRATION.TXT
5
0.00
303.18
60.88
0.00
6
1720.00
301.27
58.11
0.00 FH008312
7
0.00
303.15
60.30
0.00
8
0.00
303.15
59.61
0.00
9
0.00
303.15
59.64
0.00
10
0.00
303.15
59.71
0.00
11
0.00
303.15
59.71
0.00
12
0.00
303.15
59.55
0.00
13
0.00
303.15
59.56
0.00
14
0.00
303.15
60.10
0.00
15
0.00
303.15
60.17
0.00
16
0.00
303.15
60.49
0.00
17
0.00
303.15
60.54
0.00
18
0.00
303.15
60.45
0.00
19
0.00
303.15
60.81
0.00
20
0.00
303.15
60.85
0.00
21
0.00
303.15
61.23
0.00
22
0.00
303.15
61.25
0.00
23
0.00
303.15
61.16
0.00
24
0.00
303.15
61.30
0.00
25
-3560.00
0.00
0.00
0.00 Reservoir
Link Results:
------------------------------------
Link
Flow
-------------------------------
velocityunit
Headloss
status
ID
GPM
fps
ft/Kft
---------------------------------
1
-1840.00
--------------------------
2.94
2.24
---------
Open
2
-1840.00
2.94
2.24
open
3
-1840.00
2.94
2.24
open
4
1720.00
2.74
1.98
open
5
1720.00
2.74
1.98
open
6
0.00
0.00
0.00
open
7
0.00
0.00
0.00
open
8
0.00
0.00
0.00
Open
9
0.00
0.00
0.00
Open
10
0.00
0.00
0.00
open
11
0.00
0.00
0.00
Open
12
0.00
0.00
0.00
open
13
0.00
0.00
0.00
open
14
0.00
0.00
0.00
Open
15
0.00
0.00
0.00
Open
16
0.00
0.00
0.00
Open
Page 3
Link Results: (continued)
----------------------------------------------------------------------
Link Flow velocityunit Headloss Status
ID GPM fps ft/Kft
17
0.00
0.00
18
0.00
0.00
19
0.00
0.00
20
0.00
0.00
21
0.00
0.00
22
0.00
0.00
23
0.00
0.00
24
3560.00
0.00
0.00
open
0.00
Open
0.00
open
0.00
open
0.00
Open
0.00
Open
0.00
Open
-303.40
open Pump
Page 2

u
RUNS-FH.tXt
Page 1 9/21/2018 2:47:45 PM
E P A N E T
Hydraulic and water Quality �c
i° Analysis for Pipe Networks
version 2.0
Input File: FSRANCH.net
Four sierra Ranch subdivision
Run3-FH1 Test
Flow @2000gpm
Link - Node Table:
Link
start
---------- ------
End
-------------------------
Length Diameter
ID
Node
Node
ft
in
1
1
2
185.37
16
2
2
3
261.56
16
3
3
4
110.06
16
4
4
5
111.50
16
5
5
6
963.70
16
6
3
7
8.13
8
7
7
8
97
8
8
8
9
7.69
8
9
9
10
119.51
8
10
10
11
6.44
8
11
11
12
93.83
8
12
12
13
3.28
8
13
13
14
92.55
8
14
14
15
8.81
8
15
15
16
46.12
8
16
16
17
7.05
8
17
17
18
2.48
2
18
18
19
50.03
2
19
19
20
5.45
2
20
20
21
38.17
2
21
21
22
2.86
2
22
22
23
3.46
2
23
23
24
20.62
2
24
25
4
#N/A
#N/A
Pump
Energy Usage:
---------------------
---------------------------------------------
Usage
Avg. Kw-hr
Avg. Peak
Cost
Pump
Factor
Effic. /Mgal
Kw Kw
/day
--------------------------------------------------------------------
24
------------------------------------------
100.00
75.00 1461.38
175.37 175.37
0.00
-----------------------
Demand Charge:
0.00
Total Cost:
0.00
Page 2
Node Results:
Node
Demand
Head
Pressure
Quality
ID
----------------------------------------------------------------------
GPM
ft
psi
1
0.00
348.59
82.51
0.00 FH008314
2
0.00
348.59
79.47
0.00
3
0.00
348.59
80.12
0.00
4
0.00
348.87
80.38
0.00 FH008313
Page 1

RUNS-FH.txt
5
0.00
348.87
80.68
0.00
6
0.00
348.87
78.73
0.00 FH008312
7
0.00
347.96
79.71
0.00
8
0.00
340.55
75.81
0.00
9
0.00
339.96
75.58
0.00
10
0.00
330.82
71.70
0.00
11
0.00
330.33
71.48
0.00
12
0.00
323.15
68.21
0.00
13
0.00
322.90
68.11
0.00
14
0.00
315.82
65.59
0.00
15
0.00
315.15
65.36
0.00
16
2000.00
311.62
64.16
0.00 FH1
17
0.00
311.62
64.21
0.00
18
0.00
311.62
64.12
0.00
19
0.00
311.62
64.48
0.00
20
0.00
311.62
64.51
0.00
21
0.00
311.62
64.90
0.00
22
0.00
311.62
64.92
0.00
23
0.00
311.62
64.83
0.00
24
0.00
311.62
64.96
0.00
25
-2000.00
0.00
0.00
0.00 Reservoir
Link Results-
--------------------------------
Link
Flow
------------------------------------
velocityunit
Headloss
status
ID
GPM
fps
ft/Kft
---------------------------------------------------------------
1
0.00
0.00
0.00
----
Open
2
0.00
0.00
0.00
Open
3
-2000.00
3.19
2.61
open
4
0.00
0.00
0.00
Open
5
0.00
0.00
0.00
open
6
2000.00
12.77
76.48
Open
7
2000.00
12.77
76.48
Open
8
2000.00
12.77
76.48
Open
9
2000.00
12.77
76,48
Open
10
2000.00
12.77
76.48
open
11
2000.00
12.77
76.48
Open
12
2000.00
12.77
76.48
Open
13
2000.00
12.77
76.48
Open
14
2000.00
12.77
76.48
Open
15
2000.00
12.77
76.48
open
16
0.00
0.00
0.00
Open
u Page 3
Link Results: (continued)
----------------------------------------------------------------------
Link
Flow
velocityunit
Headloss
status
ID
GPM
fps
ft/Kft
---------------------....--
17
-----------------------------------
0.00
0.00
0.00
-------
Open
18
0.00
0.00
0.00
Open
19
0.00
0.00
0.00
open
20
0.00
0.00
0.00
Open
21
0.00
0.00
0.00
Open
22
0.00
0.00
0.00
Open
23
0.00
0.00
0.00
Open
24
2000.00
0.00-348.87
Open Pump
Page 2