NC0003425_Rox_Appendix N_20191231

Corrective Action Plan Update December 2019
Roxboro Steam Electric Plant
APPENDIX N
SynTerra
PROPOSED REMEDIAL ALTERNATIVE DESIGN
CALCULATIONS

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pipe Flow Expert Results Key Color of Ppe Velocity In ft/sec .
f = Flow in US gip. 0.063 1.356 2.648 3.940 5.233 6.525
,,..ate .- " - - - -- - 2'-——————'—
._°
LA-
M. .om aao,
—.4
Sheet 1
Sheet 2
Sheet 3
Sheet 4
Sheet 5
Designed using Pipe Flow Expert from www.pipeflow.com

f = flow in US gpm
EX-50,
APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
DFA SI
P41 - Closed
x------------------------------------------------------------------------------x
1 M P. 454.Oft
AAA• an .('
P39 - C osed
------------x------------------------------------------------------------------------------------------------------------
.pl 441.Oft
N
w �o � 0 7 `i`O ���0 • F�T�O
71
EJF49, 26 EY.dB, 26 Ex, 2 EX-0b, 2 EX�5, 262 EX14, 2 EX-43, 2 EJC-42, 262 EX-41, 2E ExIq 2 EX39,
Sheet 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
f = Flow in U5 gpm
----------------------------------------------------x------------
EX 1, 400.
P5 - Closed
--x --------------------------------------------------------------- -x-----------------------------------------------------x---x -------------------------------
tank+pump), 447.0ft (AG tank+pump), 446.Oft lieftlG tank+pump), 442.Oft
w �
RO ry
o p W o w a
w
EX-2- 400. EX 3, 400. EX-4, 4(010. EX 5, 400. EiF6, 400. EX 7, 400. EX 8, 400. E -9, 400.0-1 E , -1) 41Jj
EX-11,
Sheet 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
f= flow m US gpm
P5 - Closed P4 - Closed
-----X-------------------------------------------- --------------------------- K ----- --- --X------------------------------------------------------------------------------X -----
kG tank+pump), 4429ft tank+ pump), 444Aft p
❑ � ~I ' is
Y
X
EX-11, 4W-UrF EXAZ 4W-UrF EX-13, 4WWF EX-14, 4W-UrF EX-15,
------ X -------------------------------
3 tank+purnp), 444.Oft
Sheet 3

f = Flow in US gpm
APPENDIX N — PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
7 ©o
0.1 1.9 2.9 3.9 5.2
P37 - Closed P36 =Close P35- Clo P33- Clo P32- Close P3i� - Clo P29-Close P28 - Close P27 - M
---------------------------------------------X------ -x--------------------------------------------------------x---- -------------- ------------ ------------- ------------- ------------- ------------------------
tank+pump), 499.0ft N5 502.9ft N4 505.9f1 N4 519.Of1 N61 517.9ft NE4 496.Oft N61 527.Oft N4 498.9ft N4 527.0f1
o
N a� o
b g
0
x
0
x
0
x
0
x
0
x
0
x
0
x
,o,• N w
w
w
w
w
w
w
w
w
EX 19, 28tT'flft— EX-33, 284:CM EX-21, 287i1Fi— E ,22, 28=- EX-23, 287L)Ft— E -27, 319"flft— EX-28, 259:{7F1— EX-29, 257i1fr EX-24, 26=- EX 30, 25TUM EX-25, 267i1Pf EX 31, 25tTaft— EX-26, 262iilFt— E7C 32,
Sheet 4

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
f= flow in US gpm
--PH - Clos--------clos;
N 495.Oft N 496.Cft N2
a
X w w
W
2 EX33, 250O EX34, 264:{
P30-Clos P23-Clos--P70-G: P19-Clused
PF
1 561.oft N 18.Oft MH-1, 503.9ft PS-7 (BG tank+pump), 502
EX35,
P18-Clos P13-Cloy
)H31 500.9ft N 505.Oft N3 509.Oft
X 3 W W w
EX38, 263O EX37, 26E* EX36,

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pipe
Name
Material
Inner
Diameter
(inch)
Length
(ft)
Vol Flow
(gpm)
Velocity
(ft/sec)
Friction
Loss
(ft.hd)
Entry
Fitt. Loss
(ft.hd)
Exit
Fitt. Loss
(ft.hd)
Valve
Loss
(ft.hd)
Pump
Head
(ft.hd)
EX-1
3/4" HDPE SDR 9
0.803
326
1.1
0.70
1.44
0.07
0.01
0
48.5
EX-2
3/4" HDPE SDR 9
0.803
218
1.4
0.89
1.45
0.12
0.01
0
48.6
EX-3
3/4" HDPE SDR 9
0.803
130
10.1
6.40
27.52
6.13
0.64
0
81.3
EX-4
3/4" HDPE SDR 9
0.803
120
10.3
6.53
26.31
6.37
0.66
0
80.3
EX-5
3/4" HDPE SDR 9
0.803
226
2.2
1.39
3.29
0.29
0.03
0
49.6
EX-6
3/4" HDPE SDR 9
0.803
119
1.9
1.20
1.34
0.22
0.02
0
47.6
EX-7
3/4" HDPE SDR 9
0.803
96
2.2
1.39
1.40
0.29
0.03
0
47.7
EX-8
3/4" HDPE SDR 9
0.803
179
3.1
1.96
4.73
0.58
0.06
0
47.4
EX-9
3/4" HDPE SDR 9
0.803
62
2.4
1.52
1.05
0.35
0.04
0
43.4
EX-10
3/4" HDPE SDR 9
0.803
143
2.3
1.46
2.25
0.32
0.03
0
44.6
EX-11
3/4" HDPE SDR 9
0.803
175
2.3
1.46
2.75
0.32
0.03
0
47.1
EX-12
3/4" HDPE SDR 9
0.803
75
2.3
1.46
1.18
0.32
0.03
0
45.5
EX-13
3/4" HDPE SDR 9
0.803
147
1.6
1.01
1.23
0.15
0.02
0
45.4
EX-14
3/4" HDPE SDR 9
0.803
253
0.4
0.25
0.15
0.01
0.00
0
44.2
EX-15
3/4" HDPE SDR 9
0.803
361
0.4
0.25
0.22
0.01
0.00
0
44.2
EX-16
3/4" HDPE SDR 9
0.803
189
1.4
0.89
1.26
0.12
0.01
0
45.4
EX-17
3/4" HDPE SDR 9
0.803
292
1
0.63
1.10
0.07
0.00
0
45.2
EX-18
3/4" HDPE SDR 9
0.803
413
1
0.63
1.55
0.06
0.01
0
45.6
EX-19
3/4" HDPE SDR 9
0.803
1190
0.6
0.38
1.14
0.01
0.00
0
212.1
EX-20
3/4" HDPE SDR 9
0.803
1140
0.5
0.32
0.87
0.01
0.00
0
215.9
EX-21
3/4" HDPE SDR 9
0.803
840
0.6
0.38
0.80
0.02
0.00
0
212.8
EX-22
3/4" HDPE SDR 9
0.803
770
0.5
0.32
0.59
0.02
0.00
0
216.6
EX-23
3/4" HDPE SDR 9
0.803
710
0.6
0.38
0.68
0.02
0.00
0
212.7
EX-24
3/4" HDPE SDR 9
0.803
290
0.5
0.32
0.22
0.02
0.00
0
252.2
EX-25
3/4" HDPE SDR 9
0.803
290
0.5
0.32
0.22
0.02
0.00
0
260.2
EX-26
3/4" HDPE SDR 9
0.803
290
0.6
0.38
0.28
0.02
0.00
0
265.3
EX-27
3/4" HDPE SDR 9
0.803
215
0.6
0.38
0.21
0.02
0.00
0
183.2
EX-28
3/4" HDPE SDR 9
0.803
275
0.7
0.44
0.52
0.01
0.03
0
246.6
EX-29
3/4" HDPE SDR 9
0.803
270
0.6
0.38
0.26
0.01
0.00
0
262.3
EX-30
3/4" HDPE SDR 9
0.803
270
0.5
0.32
0.21
0.02
0.00
0
237.2
EX-31
3/4" HDPE SDR 9
0.803
270
0.5
0.32
0.21
0.02
0.00
0
238.1
EX-32
3/4" HDPE SDR 9
0.803
275
0.5
0.32
0.21
0.02
0.00
0
237.2
EX-33
3/4" HDPE SDR 9
0.803
275
0.6
0.38
0.26
0.02
0.00
0
237.3
EX-34
3/4" HDPE SDR 9
0.803
275
0.5
0.32
0.21
0.02
0.00
0
237.2
EX-35
3/4" HDPE SDR 9
0.803
275
0.5
0.32
0.21
0.02
0.00
0
237.2
EX-36
3/4" HDPE SDR 9
0.803
265
0.3
0.19
0.12
0.01
0.00
0
237.1
EX-37
3/4" HDPE SDR 9
0.803
265
0.7
0.44
0.50
0.03
0.00
0
237.5
EX-38
3/4" HDPE SDR 9
0.803
265
0.8
0.51
0.86
0.04
0.00
0
237.9
EX-39
3/4" HDPE SDR 9
0.803
460
2.4
1.52
7.78
0.35
0.04
0
219.2
EX-40
3/4" HDPE SDR 9
0.803
465
1.7
1.08
4.33
0.17
0.02
0
193.5
EX-41
3/4" HDPE SDR 9
0.803
330
1.3
0.82
1.94
0.10
0.01
0
181.1
EX-42
3/4" HDPE SDR 9
0.803
275
1
0.63
1.03
0.06
0.01
0
180.1
EX-43
3/4" HDPE SDR 9
0.803
225
0.9
0.57
0.71
0.05
0.01
0
179.8
EX-44
3/4" HDPE SDR 9
0.803
225
0.2
0.13
0.07
0.00
0.00
0
178.1
EX-45
3/4" HDPE SDR 9
0.803
270
0.1
0.06
0.04
0.00
0.00
0
179.0
EX-46
3/4" HDPE SDR 9
0.803
350
1.5
0.95
2.63
0.14
0.01
0
180.8
EX-47
3/4" HDPE SDR 9
0.803
405
1.6
1.01
3.40
0.15
0.02
0
181.6
EX-48
3/4" HDPE SDR 9
0.803
460
1.3
0.82
2.70
0.10
0.01
0
176.8
EX-49
3/4" HDPE SDR 9
0.803
285
0.1
0.06
0.04
0.00
0.00
0
192.0
EX-50
3/4" HDPE SDR 9
0.803
285
0.1
0.06
0.04
0.00
0.00
0
194.0
Notes:
dP - change of pressure
ft - foot
ft.hd - feet of head
HDPE - high density polyethylene
psi- pounds per square inch
SDR - standard dimension ratio
sec -second
Prepared by: LL Checked by: GTC
Page 1 of 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PUMPS
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pipe
Name
Flow In/Out
(gpm)
Velocity
(ft/sec)
Suction
Pressure
(psi.g)
Discharge
Pressure
(psi.g)
Pump Head
(ft.hd Fluid)
EX-1
1.1
0.70
-0.031
21.0
48.5
EX-2
1.4
0.89
-0.051
21.0
48.6
EX-3
10.1
6.40
-2.651
32.5
81.3
EX-4
10.3
6.53
-2.757
32.0
80.3
EX-5
2.2
1.39
-0.126
21.3
49.6
EX-6
1.9
1.20
-0.094
20.5
47.6
EX-7
2.2
1.39
-0.126
20.5
47.7
EX-8
3.1
1.96
-0.250
20.2
47.4
EX-9
2.4
1.52
-0.150
18.6
43.4
EX-10
2.3
1.46
-0.138
19.2
44.6
EX-11
2.3
1.46
-0.138
20.2
47.1
EX-12
2.3
1.46
-0.138
19.6
45.5
EX-13
1.6
1.01
-0.067
19.6
45.4
EX-14
0.4
0.25
-0.004
19.1
44.2
EX-15
0.4
0.25
-0.004
19.1
44.2
EX-16
1.4
0.89
-0.051
19.6
45.4
EX-17
1
0.63
-0.029
19.5
45.2
EX-18
1
0.63
-0.026
19.7
45.6
EX-19
0.6
0.38
-0.005
91.8
212.1
EX-20
0.5
0.32
-0.003
93.4
215.9
EX-21
0.6
0.38
-0.009
92.1
212.8
EX-22
0.5
0.32
-0.007
93.7
216.6
EX-23
0.6
0.38
-0.009
92.0
212.7
EX-24
0.5
0.32
-0.007
109.1
252.2
EX-25
0.5
0.32
-0.007
112.6
260.2
EX-26
0.6
0.38
-0.009
114.8
265.3
EX-27
0.6
0.38
-0.009
79.3
183.2
EX-28
0.7
0.44
-0.003
106.7
246.6
EX-29
0.6
0.38
-0.004
113.5
262.3
EX-30
0.5
0.32
-0.007
102.6
237.2
EX-31
0.5
0.32
-0.007
103.0
238.1
EX-32
0.5
0.32
-0.007
102.6
237.2
EX-33
0.6
0.38
-0.009
102.7
237.3
EX-34
0.5
0.32
-0.007
102.6
237.2
EX-35
0.5
0.32
-0.007
102.6
237.2
EX-36
0.3
0.19
-0.002
102.6
237.1
EX-37
0.7
0.44
-0.013
102.8
237.5
EX-38
0.8
0.51
-0.017
102.9
237.9
EX-39
2.4
1.52
-0.150
94.7
219.2
EX-40
1.7
1.08
-0.075
83.7
193.5
EX-41
1.3
0.82
-0.044
78.3
181.1
EX-42
1
0.63
-0.026
77.9
180.1
EX-43
0.9
0.57
-0.021
77.8
179.8
EX-44
0.2
0.13
-0.001
77.0
178.1
EX-45
0.1
0.06
0.000
77.5
179.0
EX-46
1.5
0.95
-0.059
78.2
180.8
EX-47
1.6
1.01
-0.067
78.5
181.E
EX-48
1.3
0.82
-0.044
76.5
176.8
EX-49
0.1
0.06
0.000
83.1
192.0
EX-50
0.1
0.06
0.000
84.0
194.0
Notes:
ft - foot
ft.hd - feet of head
gpm - gallons per minute
psi.g - pounds per square inch (gauge)
sec -second
Prepared by: ILL Checked by: GTC
Page 1 of 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pip, Flow EIP111 Results Key C or of Ppe Veloc!_inft�
f = flow in US gpm 0.01 2.44 4,87 7.30 9.73 12.16
yam
ne� t
rKA.
v(
Sheet 1
Sheet 2
Sheet 3
Designed using Pipe Flow Expert from www.pipeflow.com

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
f=flow in US gpm 7191 ©L>j i�❑5L ®`
P1, f=290 P2, f�G 10 P3, f=25. 30 P4. f=29.30 P5, f=32. LM PG, f=34.90 P7. f=37. 30 P8, f=39.70 P9, f-41.90
422.
N65 42
N66
N67 43
6d28
N70 d30.
432.
N71 d30.N64
N S`. 433.0 Ft 30 2623 p
27.6673 p
255079
2686dpsgo
27.7957 psg
270086 psg
27.099 psg267153 psg
263415 pi g272662 P. s 9 o
.
P= 01000 psi
A
12
A
A
A
A
A A
A A A
a
v
a
It
N43 422.
N44 428.
N44 433.
N46 430A
N47 423.
t o N48 430.
t o N49 430. t o N50 431.
1 o N50 432. [ o N50 430. t o
30.0439 ps.g:E
27.4060 Ps.
g:� 22. 9471 ps.
g:E 26.4685 Ps.9
27.5773 ps.9�E
26.3163 ps.9:E
26.9360 P. g:� 26. 5604 ps.
g:E 26.2092 ps. g:� 27.0994 ps. g:E
S
S
=
S
S
S S
S S S
N 1 421. Oft
N 3 427. Oft
N S 432.Oft
o N 7 429. Oft
N9 427.01f1
N 11 429.9
1 N 13 429.0 t N 15 430.0
t N 15 431 0 t N 15 429.0 t
8. 6600 psi.
8.6600 psi.
8. 6600 Psi
1 8.6600 psi.
8. 6600 psi.
8. 6600 psi.
8.6600 psi. 8. 6600 psi.
8.6600 psi. 8. 6600 psi.
a
a
a
w a
m m
IW-1 242.gft iw-2 241.dit Iw-3 253.0.ft iw4 250.bft Iw-5 248.gft iw-6 250.gft iw-7 250.gft Iw-Z 251. 1ft iw-09 252Oft Iw-16 2505,ft
86.1061 psi 86.1061 psi 86. 1115 psi 86.1060 psi 86. 1061 psi 86.1061 psi 136.1061 psi 86. 1061 psi 86.1061 ps 86.1061 Ps�
290 US gpm 320 US gpm 1920 US gprn 40C lJSgpm 29011S gpm 2M USgpm 240 uSgpm 240 US gpm 220 US gprn 250
Sheet 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
maw.
f - Flow in OS gpm 0>❑- ,y '�❑L' ®`
P19, f-44.49
N 87, 433. Eft
p; 0. 3001 psi. g
P11, f-46.40 P12, f=48.70
P13. f-51.40 P14, f=53.90 P15, f=56. 80 P16, f-59.60
P17, f=62.70
P18, f=(4.30
P19, f=6530 P20, f=66.10 P
N72 430.
N72 433.
N73 429.
N74 425.
N75 429.
N76 426.
N77 434.
N78 433.
N79 433.
N80 433.
N81 433.
>
27.3502 ps.g❑
>
26.0974 ps.9.
>
27.3471 ps. g❑
>
29.6062 ps. g❑
>
27.9079 ps.g❑
>
29.2399 ws g❑
>
25.3157 ps.g❑
26.2889ps.g❑
>
26.3295 ps.9.
>
26. 3731 ps.g❑
>
>
26. 3907 ps.g❑
A
A
A
m
m
A
A
m
A
A
A
a
a
a
v
v
a
a
a
It
a
v
N 51 430. t o
.51 433. t o
N 52 429. t o
N 53 425. t o
N 54 429. t o
N 55 42fi6 [ o
N 56 434. [ o
N 57 433.
t o
N 58 433.
t o
N 59 433.
t o
N 60 433. t o
27.2339 ps. g�
25.9549 P. g
27.6553 ps. g�E
29.4395 p3. g
27.6,395 ps. g
29.0350 ps. g:r
25.5691 P3.g`r
26.2144 P.
g:�
26.2973 ps.
g�E
26. 3470 P.
g�E
26. 3338 p3. g�
z
z
z
z
z
z
z
z
z
z
z
N 17 429.0 t
N 17 432.0 t
N 19 423.0 t
N 21 424.0 t
N 23 428. 0 t
N 25 425.0 1
N 27 433.0 1
N29 432.0
t
N 31 432.0
t
N 33 432.0
t
N 35 432.0 t
8.6600 psi.
8. 6600 psi.
8.6600 psi. 1
8.6600 Psi.
8.6600 psi.
3.6600 psi.
3.6600 pi 1
8.6600 psi.
8. 6600 psi.
8. 6600 psi.
1
8.6600 Psi.
ti
ti
IW-11 2-0 ft
IW-12 253 ft
IW-13 249 f[
IW-14 245 ft
IW-15 249 ft
IW-16 246 fl
IW-17 254 fl
IW-18 253
ft
IW-19 2530ft
IW-20 2530f[
IW-21 2530f[
86.1061 P3-
86.1061 ps-
% 1061 P3-
86.1061 ps-
a' 1061 ps
86.1061 ps-
86.1 061 ps-
86.1061 P3-
86.1062 ps-
86.1062 P3-
86.1062 ps-
] US gpm 200
US gpm 230 US gpm
270
US gpm 250 US gpm
290 US gpm
2®0 US gpm
3.19
us gpm
1.60
US gpm
1.00
US gpm
0.90 US gpm
0.50 US
Sheet 2

f = Flow in US gpm
APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
7© M
P21, f=66.60 P22, f=67.10
N81 430.
N81 439. _
277064 Ps
g o 277224 ps 9 D
A
A
Y
N 60 430.0
t o N 60 430. t❑
276995
277134 Ps -g `s
S I
Y
N 35 429.0
t N 35 429.0 t
8.6600 psi.
8.6690 psi.
a a
P23, f=67.70
P24, f=60.40
P25, f=70. 50
P26, f=73.20
NS1 426.
Ilk
N81 428.
N&i 430.
N84 430. am:
29.4795 Ps .9 o
23.6419 Ps .9 o
27.3257 Pl g'
27.3736 ps . g bo
N60 426. t o
N61 428. t o
N62 430.0 t o
N63 430.fli t o
294633 ps.g*
235194 pi�g
�
276339 ps.
g�
2763M ps.
g�
S
S
S
S
N 35 425.9
t
N 37 427.9
N 39 429.0
t
N 41 429.0
1
8.6600 psi.
8.6603 psi
8.6609 psi.
8.6609 psi.
IW-22 250�1 IW-23 2s0�1 IW-124 246�ft IW-21 24a�ft IW-26 211; IW 27 250.011
36.1 U62 Ps 86.1 062 ps 86.1 062 ps 86.1 061 ps 86.1161 - - 1.1 psi.g
0 US gpm 0.50 US gpm 0.60 US gpm 0.70 US gpm 210 US gpm 270 US gpm 270 US gpm

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pipe
ID
Pipe Name
and Notes
Material
Inner
Diameter
(inch)
Length
(ft)
Vol Flow
(gpm)
Velocity
(ft/sec)
Friction Loss
(ft.hd)
Entry
Fitting
Loss
(ft.hd)
Exit
Fitting
Loss
(ft.hd)
Valve
Loss
(ft.hd)
dP Total
Loss
(psi)
1
IW-01
6" Steel (ANSI) Sch. 80
5.76
179
2.9
0.04
0.00
0.00
0.00
0.00
-77.45
22
WH-01
3/4" HDPE SDR 9
0.80
1
2.9
1.84
0.02
0.04
0.00
50.36
21.38
43
HEADER01
3/4" HDPE SDR 9
0.80
15
2.9
1.84
0.35
0.15
0.00
0.00
0.22
2
IW-02
6" Steel (ANSI) Sch. 80
5.76
179
3.2
0.04
0.00
0.00
0.00
0.00
-77.45
23
WH-02
3/4" HDPE SDR 9
0.80
1
3.2
2.03
0.03
0.05
0.00
44.25
18.75
44
HEADER02
3/4" HDPE SDR 9
0.80
15
3.2
2.03
0.42
0.19
0.00
0.00
0.26
3
IW-03
6" Steel (ANSI) Sch. 80
5.76
179
19.2
0.24
0.01
0.00
0.00
0.00
-77.44
74
WH-03
3/4" HDPE SDR 9
0.80
1
19.2
12.16
0.67
1.72
0.00
31.63
14.29
75
HEADER03
1" HDPE SDR 9
1.01
15
19.2
7.77
3.41
2.51
0.00
0.00
2.56
4
IW-04
6" Steel (ANSI) Sch. 80
5.76
179
4.0
0.05
0.00
0.00
0.00
0.00
-77.45
25
WH-04
3/4" HDPE SDR 9
0.80
1
4.0
2.53
0.04
0.07
0.00
42.04
17.81
46
HEADER04
3/4" HDPE SDR 9
0.80
15
4.0
2.53
0.62
0.29
0.00
0.00
0.39
5
IW-05
6" Steel (ANSI) Sch. 80
5.76
179
2.9
0.04
0.00
0.00
0.00
0.00
-77.45
26
WH-05
3/4" HDPE SDR 9
0.80
1
2.9
1.84
0.02
0.04
0.00
44.66
18.92
47
HEADER05
3/4" HDPE SDR 9
0.80
15
2.9
1.84
0.35
0.15
0.00
0.00
0.22
6
IW-06
6" Steel (ANSI) Sch. 80
5.76
179
2.7
0.03
0.00
0.00
0.00
0.00
-77.45
27
WH-06
3/4" HDPE SDR 9
0.80
1
2.7
1.71
0.02
0.03
0.00
42.91
18.16
48
HEADER06
3/4" HDPE SDR 9
0.80
15
2.7
1.71
0.31
0.13
0.00
0.00
0.19
7
IW-07
6" Steel (ANSI) Sch. 80
5.76
179
2.4
0.03
0.00
0.00
0.00
0.00
-77.45
28
WH-07
3/4" HDPE SDR 9
0.80
1
2.4
1.52
0.02
0.03
0.00
43.20
18.28
49
HEADER07
3/4" HDPE SDR 9
0.80
15
2.4
1.52
0.25
0.10
0.00
0.00
0.15
78
IW-08
6" Steel (ANSI) Sch. 80
5.76
179
2.4
0.03
0.00
0.00
0.00
0.00
-77.45
77
WH-08
3/4" HDPE SDR 9
0.80
1
2.4
1.52
0.02
0.03
0.00
42.33
17.90
76
HEADER08
3/4" HDPE SDR 9
0.80
15
2.4
1.52
0.25
0.10
0.00
0.00
0.15
8
IW-09
6" Steel (ANSI) Sch. 80
5.76
179
2.2
0.03
0.00
0.00
0.00
0.00
-77.45
29
WH-09
3/4" HDPE SDR 9
0.80
1
2.2
1.39
0.01
0.02
0.00
41.52
17.55
50
HEADER09
3/4" HDPE SDR 9
0.80
15
2.2
1.39
0.22
0.09
0.00
0.00
0.13
73
IW-10
6" Steel (ANSI) Sch. 80
5.76
179
2.5
0.03
0.00
0.00
0.00
0.00
-77.45
72
WH-10
3/4" HDPE SDR 9
0.80
1
2.5
1.58
0.02
0.03
0.00
43.57
18.44
71
HEADER10
3/4" HDPE SDR 9
0.80
15
2.5
1.58
0.27
0.11
0.00
0.00
0.17
9
IW-11
6" Steel (ANSI) Sch. 80
5.76
179
2.0
0.03
0.00
0.00
0.00
0.00
-77.45
30
WH-11
3/4" HDPE SDR 9
0.80
1
2.0
1.27
0.01
0.02
0.00
43.91
18.58
51
HEADERII
3/4" HDPE SDR 9
0.80
15
2.0
1.27
0.19
0.07
0.00
0.00
0.11
45
IW-12
6" Steel (ANSI) Sch. 80
5.76
179
2.3
0.03
0.00
0.00
0.00
0.00
-77.45
24
WH-12
3/4" HDPE SDR 9
0.80
1
2.3
1.46
0.02
0.02
0.00
40.93
17.29
70
HEADER12
3/4" HDPE SDR 9
0.80
15
2.3
1.46
0.24
0.10
0.00
0.00
0.14
10
IW-13
6" Steel (ANSI) Sch. 80
5.76
179
2.7
0.03
0.00
0.00
0.00
0.00
-77.45
31
WH-13
3/4" HDPE SDR 9
0.80
1
2.7
1.71
0.02
0.03
0.00
44.85
19.00
52
HEADER13
3/4" HDPE SDR 9
0.80
15
2.7
1.71
0.31
0.13
0.00
0.00
0.19
11
IW-14
6" Steel (ANSI) Sch. 80
5.76
179
2.5
0.03
0.00
0.00
0.00
0.00
-77.45
32
WH-14
3/4" HDPE SDR 9
0.80
1
2.5
1.58
0.02
0.03
0.00
48.98
20.78
53
HEADER14
3/4" HDPE SDR 9
0.80
15
2.5
1.58
0.27
0.11
0.00
0.00
0.17
12
IW-15
6" Steel (ANSI) Sch. 80
5.76
179
2.9
0.04
0.00
0.00
0.00
0.00
-77.45
33
WH-15
3/4" HDPE SDR 9
0.80
1
2.9
1.84
0.02
0.04
0.00
44.92
19.03
54
HEADER15
3/4" HDPE SDR 9
0.80
15
2.9
1.84
0.35
0.15
0.00
0.00
0.22
13
IW-16
6" Steel (ANSI) Sch. 80
5.76
179
2.8
0.03
0.00
0.00
0.00
0.00
-77.45
34
WH-16
3/4" HDPE SDR 9
0.80
1
2.8
1.77
0.02
0.04
0.00
48.03
20.38
55
HEADER16
3/4" HDPE SDR 9
0.80
15
2.8
1.77
0.33
0.14
0.00
0.00
0.20
14
IW-17
6" Steel (ANSI) Sch. 80
5.76
179
3.1
0.04
0.00
0.00
0.00
0.00
-77.45
35
WH-17
3/4" HDPE SDR 9
0.80
1
3.1
1.96
0.03
0.04
0.00
40.01
16.91
56
HEADER17
3/4" HDPE SDR 9
0.80
15
3.1
1.96
0.40
0.17
0.00
0.00
0.25
15
IW-18
6" Steel (ANSI) Sch. 80
5.76
179
1.6
0.02
0.00
0.00
0.00
0.00
-77.45
36
WH-18
3/4" HDPE SDR 9
0.80
1
1.6
1.01
0.01
0.01
0.00
41.55
17.55
57
HEADER18
3/4" HDPE SDR 9
0.80
15
1.6
1.01
0.13
0.05
0.00
0.00
0.07
16
IW-19
6" Steel (ANSI) Sch. 80
5.76
179
1.0
0.01
0.00
0.00
0.00
0.00
-77.45
37
WH-19
3/4" HDPE SDR 9
0.80
1
1.0
0.63
0.00
0.00
0.00
41.76
17.64
58
HEADER19
3/4" HDPE SDR 9
0.80
15
1.0
0.63
0.06
0.02
0.00
0.00
0.03
17
IW-20
6" Steel (ANSI) Sch. 80
5.76
179
0.8
0.01
0.00
1 0.00
0.00
0.00
-77.45
38
WH-20
3/4" HDPE SDR 9
0.80
1
0.8
0.51
0.00
1 0.00
0.00
41.87
17.69
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
ROXBORO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, SEMORA, NC
Pipe
ID
Pipe Name
and Notes
Material
Inner
Diameter
(inch)
Length
(ft)
Vol Flow
(gpm)
Velocity
(ft/sec)
Friction Loss
(ft.hd)
Entry
Fitting
Loss
(ft.hd)
Exit
Fitting
Loss
(ft.hd)
Valve
Loss
(ft.hd)
dP Total
Loss
(psi)
59
HEADER20
3/4" HDPE SDR 9
0.80
15
0.8
0.51
0.05
0.01
0.00
0.00
0.03
88
IW-21
6" Steel (ANSI) Sch. 80
5.76
179
0.5
0.01
0.00
0.00
0.00
0.00
-77.45
89
WH-21
3/4" HDPE SDR 9
0.80
1
0.5
0.32
0.00
1 0.00
0.00
41.96
17.72
90
HEADER21
3/4" HDPE SDR 9
0.80
15
0.5
0.32
0.01
0.00
0.00
0.00
0.01
18
IW-22
6" Steel (ANSI) Sch. 80
5.76
179
0.5
0.01
0.00
0.00
0.00
0.00
-77.45
39
WH-22
3/4" HDPE SDR 9
0.80
1
0.5
0.32
0.00
0.00
0.00
45.00
19.04
60
HEADER22
3/4" HDPE SDR 9
0.80
15
0.5
0.32
0.01
0.00
0.00
0.00
0.01
81
IW-23
6" Steel (ANSI) Sch. 80
5.76
179
0.6
0.01
0.00
0.00
0.00
0.00
-77.45
80
WH-23
3/4" HDPE SDR 9
0.80
1
0.6
0.38
0.00
0.00
0.00
45.04
19.05
87
HEADER23
3/4" HDPE SDR 9
0.80
15
0.6
0.38
0.01
0.01
0.00
0.00
0.01
91
IW-24
6" Steel (ANSI) Sch. 80
5.76
179
0.7
0.01
0.00
0.00
0.00
0.00
-77.45
92
WH-24
3/4" HDPE SDR 9
0.80
1
0.7
0.44
0.00
0.00
0.00
49.08
20.80
93
HEADER24
3/4" HDPE SDR 9
0.80
15
0.7
0.44
0.03
0.01
0.00
0.00
0.02
19
IW-25
6" Steel (ANSI) Sch. 80
5.76
179
2.1
0.03
0.00
0.00
0.00
0.00
-77.45
40
WH-25
3/4" HDPE SDR 9
0.80
1
2.1
1.33
0.01
0.02
0.00
46.87
19.86
61
HEADER25
3/4" HDPE SDR 9
0.80
15
2.1
1.33
0.20
0.08
0.00
0.00
0.12
20
IW-26
6" Steel (ANSI) Sch. 80
5.76
179
2.7
0.03
0.00
0.00
0.00
0.00
-77.45
41
WH-26
3/4" HDPE SDR 9
0.80
1
2.7
1.71
0.02
0.03
0.00
44.80
18.97
62
HEADER26
3/4" HDPE SDR 9
0.80
15
2.7
1.71
0.31
0.13
0.00
0.00
0.19
21
IW-27
6" Steel (ANSI) Sch. 80
5.76
179
2.7
0.03
0.00
1 0.00
0.00
0.00
-77.45
42
WH-27
3/4" HDPE SDR 9
0.80
1
2.7
1.71
0.02
0.03
0.00
44.92
19.03
63
HEADER27
3/4" HDPE SDR 9
0.80
15
2.7
1.71
0.31
0.13
0.00
0.00
0.19
64
Pl
4" HDPE SDR 9
3.44
110
2.9
0.10
0.00
0.00
0.00
0.00
-2.59
65
P2
4" HDPE SDR 9
3.44
100
6.1
0.21
0.01
0.00
0.00
0.00
-2.16
66
P3
4" HDPE SDR 9
3.44
120
25.3
0.87
0.12
0.00
0.00
0.00
1.35
67
P4
4" HDPE SDR 9
3.44
115
29.3
1.01
0.15
0.01
0.00
0.00
0.93
68
P5
4" HDPE SDR 9
3.44
110
32.2
1.11
0.17
0.01
0.00
0.00
-0.79
69
P6
4" HDPE SDR 9
3.44
100
34.9
1.21
0.18
0.01
0.00
0.00
0.08
110
P7
4" HDPE SDR 9
3.44
60
37.3
1.29
0.12
0.01
0.00
0.00
-0.38
109
P8
4" HDPE SDR 9
3.44
55
39.7
1.37
0.13
0.01
0.00
0.00
-0.37
108
P9
4" HDPE SDR 9
3.44
50
41.9
1.45
0.13
1 0.01
0.00
0.00
0.92
107
P10
4" HDPE SDR 9
3.44
65
44.4
1.53
0.18
0.01
0.00
0.00
0.08
106
Pll
4" HDPE SDR 9
3.44
30
46.4
1.60
0.09
0.01
0.00
0.00
-1.25
105
P12
6" HDPE SDR 9
5.07
80
48.7
0.78
0.04
0.00
0.00
0.00
1.75
104
P13
6" HDPE SDR 9
5.07
110
51.4
0.82
0.06
0.00
0.00
0.00
1.76
103
P14
6" HDPE SDR 9
5.07
115
53.9
0.86
0.07
0.00
0.00
0.00
-1.70
102
P15
6" HDPE SDR 9
5.07
110
56.8
0.90
0.08
0.00
0.00
0.00
1.33
101
P16
6" HDPE SDR 9
5.07
110
59.6
0.95
0.08
0.00
0.00
0.00
-3.42
100
P17
6" HDPE SDR 9
5.07
110
62.7
1.00
0.09
0.00
0.00
0.00
0.47
99
P18
6" HDPE SDR 9
5.07
105
64.3
1.02
0.09
0.00
0.00
0.00
0.04
79
P19
6" HDPE SDR 9
5.07
110
65.3
1.04
0.10
0.00
0.00
0.00
0.04
98
P20
6" HDPE SDR 9
5.07
40
66.1
1.05
0.04
0.00
0.00
0.00
0.02
97
P21
6" HDPE SDR 9
5.07
40
66.6
1.06
0.04
0.00
0.00
0.00
1.32
96
P22
6" HDPE SDR 9
5.07
35
67.1
1.07
0.03
0.00
0.00
0.00
0.02
95
P23
6" HDPE SDR 9
5.07
60
67.7
1.08
0.06
0.01
0.00
0.00
1.76
94
P24
6" HDPE SDR 9
5.07
60
68.4
1.09
0.06
0.01
0.00
0.00
-0.84
82
P25
6" HDPE SDR 9
5.07
110
70.5
1.12
0.11
0.01
0.00
0.00
-0.82
83
P26
6" HDPE SDR 9
5.07
100
73.2
1.17
0.11
0.01
0.01
0.00
0.05
85
P85
6" HDPE SDR 9
5.07
475
75.9
1.21
0.54
0.02
0.00
0.00
-21.39
Notes:
ANSI - American National Standards Institute
dP - change of pressure
ft - foot
ft.hd - feet of head
gpm - gallons per minute
HDPE - high density polyethelyne
psi- pounds per square inch
Sch - schedule
SDR - standard dimension ratio
sec - second
Prepared by: LL Checked by: GTC
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