NC0004987_MSS_Appendix N_20191231

Corrective Action Plan Update December 2019
Marshall Steam Station
APPENDIX N
SynTerra
PROPOSED REMEDIAL ALTERNATIVE DESIGN
CALCULATIONS

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
Pipe Flow Expert Results Key Color of Pipe: Velocity in ft/sec ■
f = flow in US gpm 1.054 1 101 1.148 1.195 1 243 1 290
Designed using Pipe Flow Expert from www.pipeflow.com

f= flow in US gpm
APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
P 11. -Clcs e'
P10
PB` -C lese�
Pe?-Clese' -5'--'lc
P99-Close P99- Close
P100-I
-----X---------------------------------------------------------------- X------
-Close]
- -----
-----------
_----__----*-
----------- - ---
k+pump], 312.Oft M
-1, 8221.Oft N
321.Oft N
319. Oft N{] 817.0ft N
315. Oft N9 315.0ft N
813.Oft
o
19
70
0
6
6 o
o
l
W
g
g
EX-1. 685. Oft EX2, 635. Oft EX 3, 686. Oft EXA, 687. Oft EX5, 689. Oft EX£, 691. Oft EX7, 694. Oft EX3, 695. Oft EX-9, 697. Oft EX-10. 691. Oft EX-11, 683.Oft EX-12. 683.Oft EX56, 632. Oft EX-13. 632. Oft Ex 57, 678. Oft EX-14. 630. Oft
Sheet 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
f = Flow h US gpm
P1---:.I_se" P1C1 Cl—I
P1C2 -Cl­'. P1C. Clc '
P1C�-Clc . _Plc. Cl—I
P1C" Clc . P1Ci C1c
P108-Close P109-C—
-Pilo-Close P111-Close P112-Close P113-C—
---
P114 fC se P11`-Close
-
N
313.Oft N]] 313.Oft N11
313.Oft N]] 313.Oft N
313.Oft N{] 312.Oft N
312.Oft N{] 312.Oft N
311.Oft N{] 303.Oft Nf
307.Oft N{] 304.Oft N{] 303.Oft N{] 301.Oft Nf
302.Oft N{] 301.Oft N
302.0
w
w w
w w
w w
w w
w w
w w w w
w w
g
g
g
g
g
g g g
g
E)C14,
630. Oft E)C53, 676. Oft E)C15.
679. Oft E)C59, 663. Oft E)C16,
670. Oft E%60, 663. Oft E)C17.
662. Oft E%61, 659. Oft E)C13,
656. Oft E.^F62, 651. Oft E)C19,
651. Oft E%63, 643. Oft E%64, 649. Oft E%-66, 643. Oft E)C20,
652. Oft E%65, 643. Oft E)C21,
641
Sheet 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
f— flow in US gpm
P22--I—ed
N 802. Oft *N1
98. Oft
w kro� n
w W
EX-71."- Oft E7422, 649. Oft
WWTP, Aft
X
tank+pump, 798. Oft
X m
o -p ^, w
w
H2 Clna d P90-Close P89-Clcae- ... .
_01-_-_----_X---_----_-__-_-________ ___________ ___________ ------
P54 CBG tank+pu IMAM N 771.Oft N 772.Oft N 772. Oft NJ 772.Oft
g
E)C55, 634.Oft EX-54, 632.0ft E)C53, 632.Oft EX-52, 629.0ft E)C51,
BG tank+pu pk 777.Oft NJ 771.0ft NJ 772.Oft NJ 773.Oft NJ 776.Oft N
Nm
� lil W W W W t
E7623, 648. Oft E -24, 679. Oft EJC25, 647. Oft EX-26, 647.0 ft EX-27, 646. Oft E1C28, 647.Oft EX-29, 643.Oft
EX-30, 638.Oft E1C31, 636.Oft EX-32, 636.Oft EX-'E. "'-.Ctt
Sheet 3

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
u f— flow in US gpm
P68-Glos P87-Cbs P86-Cbs*NT72
P8F-C'�=_z- P84-Glos*1.T72.
P83-Gbs P82-Glow P81 POO -Glos P79-Glos P78-Glos P77-Glos P76-Glos P75-Glos P74-Close"
�. Oft N 772. Oft N 772. Oft . Oft N 772.Oft Oft N 772. Oft N 771. Oft NJ 771.Oft NJ 771.Oft NJ 771.Oft N 771.Oft N 771. Oft N 771. Oft N 773. Oft NJ 782.Oft
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
zi
x x H H x K K K x x x x H H K
g
'., 629.Oft EX-51, 626 Oft EX-50, 627.3ft EX49, 628.0ft EX48, 625.0ft EX47, 626.Oft EX46, 629.Oft EX-45, 633.Oft EX44, 639.Oft EX43, 652.Oft EX42, 653.Oft EX41, 645.Oft EX40, 640.3ft EX-39, 633.0ft EX38, 625.0ft EX-37, 628.Oft
N I
1 776. Oft
NJ
778.Oft
NJ
779.Oft
*N713 1. Oft
x
x
x
x
EX-33, 634.Oft
EX-34, 633.Oft
EX3`_, 631.0ft
EX36, 631.0ft
Sheet 4

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
Pipe
Name
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)
Pump
Head
(ft.hd)
EX-1
1" HDPE SDR 9
1.005
261
8.5
3.44
13.92
1.62
0.18
0
142.7
EX-2
1" HDPE SDR 9
1.005
199
8.5
3.44
10.61
1.62
0.18
0
139.4
EX-3
1" HDPE SDR 9
1.005
190
8.5
3.44
10.13
1.62
0.18
0
137.9
EX-4
1" HDPE SDR 9
1.005
286
8.5
3.44
15.25
1.62
0.18
0
142.1
EX-5
1" HDPE SDR 9
1.005
377
8.5
3.44
20.10
1.62
0.18
0
144.9
EX-6
1" HDPE SDR 9
1.005
437
8.5
3.44
23.30
1.62
0.18
0
146.1
EX-7
1" HDPE SDR 9
1.005
509
8.5
3.44
27.14
1.62
0.18
0
147.0
EX-8
1" HDPE SDR 9
1.005
587
8.5
3.44
31.30
1.62
0.18
0
150.1
EX-9
1" HDPE SDR 9
1.005
564
10.1
4.09
40.81
2.29
0.26
0
158.4
EX-10
1" HDPE SDR 9
1.005
410
10.1
4.09
29.67
2.29
0.26
0
162.2
EX-11
1" HDPE SDR 9
1.005
191
10.1
4.09
13.82
2.29
0.26
0
154.4
EX-12
1" HDPE SDR 9
1.005
186
10.1
4.09
13.46
2.29
0.26
0
152.0
EX-13
1" HDPE SDR 9
1.005
190
10.1
4.09
13.75
2.29
0.26
0
149.3
EX-14
1" HDPE SDR 9
1.005
207
10.1
4.09
14.98
2.29
0.26
0
150.5
EX-15
1" HDPE SDR 9
1.005
208
10.1
4.09
15.05
2.29
0.26
0
151.6
EX-16
1" HDPE SDR 9
1.005
203
10.1
4.09
14.69
2.29
0.26
0
160.2
EX-17
1" HDPE SDR 9
1.005
217
10.1
4.09
15.70
2.29
0.26
0
168.3
EX-18
1" HDPE SDR 9
1.005
234
10.1
4.09
16.93
2.29
0.26
0
174.5
EX-19
1" HDPE SDR 9
1.005
261
10.1
4.09
18.89
2.29
0.26
0
177.4
EX-20
1" HDPE SDR 9
1.005
276
10.1
4.09
19.97
2.29
0.26
0
172.5
EX-21
1" HDPE SDR 9
1.005
217
10.1
4.09
15.70
2.29
0.26
0
171.3
EX-22
1" HDPE SDR 9
1.005
255
10.1
4.09
1 18.45
2.29
0.26
0
1 170.0
EX-23
1" HDPE SDR 9
1.005
249
10.1
4.09
18.02
2.29
0.26
0
170.6
EX-24
1" HDPE SDR 9
1.005
315
10.1
4.09
22.79
2.29
0.26
0
144.3
EX-25
1" HDPE SDR 9
1.005
354
10.1
4.09
25.61
2.29
0.26
0
179.2
EX-26
1" HDPE SDR 9
1.005
368
10.1
4.09
26.63
2.29
0.26
0
180.2
EX-27
1" HDPE SDR 9
1.005
315
10.1
4.09
22.79
2.29
0.26
0
156.3
EX-28
1" HDPE SDR 9
1.005
262
10.1
4.09
18.96
2.29
0.26
0
151.5
EX-29
1" HDPE SDR 9
1.005
180
10.1
4.09
13.02
2.29
0.26
0
149.6
EX-30
1" HDPE SDR 9
1.005
188
10.1
4.09
13.60
2.29
0.26
0
149.2
EX-31
1" HDPE SDR 9
1.005
185
10.1
4.09
13.39
2.29
0.26
0
151.9
EX-32
1" HDPE SDR 9
1.005
219
10.4
4.21
16.69
2.43
0.27
0
156.4
EX-33
1" HDPE SDR 9
1.005
194
10.4
4.21
14.78
2.43
0.27
0
159.5
EX-34
1" HDPE SDR 9
1.005
199
10.4
4.21
15.17
2.43
0.27
0
162.9
EX-35
1" HDPE SDR 9
1.005
195
10.4
4.21
14.86
2.43
0.27
0
165.6
EX-36
1" HDPE SDR 9
1.005
198
10.4
4.21
15.09
2.43
0.27
0
167.8
EX-37
1" HDPE SDR 9
1.005
182
10.4
4.21
1 13.87
2.43
1 0.27
0
170.6
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
Pipe
Name
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)
Pump
Head
(ft.hd)
EX-38
1" HDPE SDR 9
1.005
227
10.4
4.21
17.30
2.43
0.27
0
168.0
EX-39
1" HDPE SDR 9
1.005
225
10.4
4.21
17.15
2.43
0.27
0
157.9
EX-40
1" HDPE SDR 9
1.005
200
10.4
4.21
15.24
2.43
0.27
0
148.9
EX-41
1" HDPE SDR 9
1.005
182
10.4
4.21
13.87
2.43
0.27
0
142.6
EX-42
1" HDPE SDR 9
1.005
154
10.4
4.21
11.74
2.43
0.27
0
132.4
EX-43
1" HDPE SDR 9
1.005
148
10.4
4.21
11.28
2.43
0.27
0
133.0
EX-44
1" HDPE SDR 9
1.005
161
10.4
4.21
12.27
2.43
0.27
0
147.0
EX-45
1" HDPE SDR 9
1.005
167
10.4
4.21
12.73
2.43
0.27
0
153.4
EX-46
1" HDPE SDR 9
1.005
177
10.4
4.21
13.49
2.43
0.27
0
159.2
EX-47
1" HDPE SDR 9
1.005
187
10.4
4.21
14.25
2.43
0.27
0
163.0
EX-48
1" HDPE SDR 9
1.005
163
10.2
4.13
12.00
2.34
0.26
0
161.6
EX-49
1" HDPE SDR 9
1.005
144
10.2
4.13
10.60
2.34
0.26
0
157.2
EX-50
1" HDPE SDR 9
1.005
145
10.2
4.13
10.68
2.34
0.26
0
158.3
EX-51
1" HDPE SDR 9
1.005
146
10.2
4.13
10.75
2.34
0.26
0
159.4
EX-52
1" HDPE SDR 9
1.005
143
10.2
4.13
10.53
2.34
0.26
0
156.1
EX-53
1" HDPE SDR 9
1.005
144
10.2
4.13
10.60
2.34
0.26
0
153.2
EX-54
1" HDPE SDR 9
1.005
176
10.2
4.13
12.96
2.34
0.26
0
154.6
EX-55
1" HDPE SDR 9
1.005
184
10.2
4.13
13.55
2.34
0.26
0
153.2
EX-56
1" HDPE SDR 9
1.005
363
9.4
3.80
23.13
1.99
0.22
0
160.3
EX-57
1" HDPE SDR 9
1.005
376
9.4
3.80
23.96
1.99
0.22
0
163.2
EX-58
1" HDPE SDR 9
1.005
360
9.4
3.80
22.94
1.99
0.22
0
162.1
EX-59
1" HDPE SDR 9
1.005
357
9.4
3.80
22.75
1.99
0.22
0
170.0
EX-60
1" HDPE SDR 9
1.005
354
9.4
3.80
22.56
1.99
0.22
0
173.8
EX-61
1" HDPE SDR 9
1.005
329
9.4
3.80
20.96
1.99
0.22
0
176.2
EX-62
1" HDPE SDR 9
1.005
315
9.4
3.80
20.07
1.99
0.22
0
179.3
EX-63
1" HDPE SDR 9
1.005
317
9.4
3.80
20.20
1.99
0.22
0
178.4
EX-64
1" HDPE SDR 9
1.005
289
9.4
3.80
18.41
1.99
0.22
0
174.6
EX-65
1" HDPE SDR 9
1.005
295
9.4
3.80
18.80
1.99
0.22
0
174.0
EX-66
1" HDPE SDR 9
1.005
365
9.4
3.80
23.26
1.99
0.22
0
178.5
Notes:
ft - foot
ft.hd - feet of head
gpm - gallons per minute
HDPE - high density polyethylene
SDR - standard dimension ratio
sec- second
Prepared by: LL Checked by: GTE
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PUMPS
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, 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
8.5
3.44
-0.703
61.0
142.7
EX-2
8.5
3.44
-0.703
59.6
139.4
EX-3
8.5
3.44
-0.703
59.0
137.9
EX-4
8.5
3.44
-0.703
60.8
142.1
EX-5
8.5
3.44
-0.703
62.0
144.9
EX-6
8.5
3.44
-0.703
62.5
146.1
EX-7
8.5
3.44
-0.703
62.9
147.0
EX-8
8.5
3.44
-0.703
64.2
150.1
EX-9
10.1
4.09
-0.992
67.5
158.4
EX-10
10.1
4.09
-0.992
69.2
162.2
EX-11
10.1
4.09
-0.992
65.8
154.4
EX-12
10.1
4.09
-0.992
64.8
152.0
EX-13
10.1
4.09
-0.992
63.6
149.3
EX-14
10.1
4.09
-0.992
64.1
150.5
EX-15
10.1
4.09
-0.992
64.6
151.6
EX-16
10.1
4.09
-0.992
68.3
160.2
EX-17
10.1
4.09
-0.992
71.8
168.3
EX-18
10.1
4.09
-0.992
74.5
174.5
EX-19
10.1
4.09
-0.992
75.8
177.4
EX-20
10.1
4.09
-0.992
73.7
172.5
EX-21
10.1
4.09
-0.992
73.1
171.3
EX-22
10.1
4.09
-0.992
72.6
170.0
EX-23
10.1
4.09
-0.992
72.8
170.6
EX-24
10.1
4.09
-0.992
61.5
144.3
EX-25
10.1
4.09
-0.992
76.5
179.2
EX-26
10.1
4.09
-0.992
77.0
180.2
EX-27
10.1
4.09
-0.992
66.7
156.3
EX-28
10.1
4.09
-0.992
64.6
151.5
EX-29
10.1
4.09
-0.992
63.7
149.6
EX-30
10.1
4.09
-0.992
63.5
149.2
EX-31
10.1
4.09
-0.992
64.7
151.9
EX-32
10.4
4.21
-1.052
66.6
156.4
EX-33
10.4
4.21
-1.052
68.0
159.5
EX-34
10.4
4.21
-1.052
69.4
162.9
EX-35
10.4
4.21
-1.052
70.6
165.6
EX-36
10.4
4.21
-1.052
71.5
167.8
EX-37
10.4
4.21
-1.052
72.7
170.6
EX-38
10.4
4.21
-1.052
71.6
168.0
EX-39
10.4
4.21
-1.052
67.2
157.9
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
GROUNDWATER EXTRACTION SYSTEM PUMPS
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
Pipe
Name
Flow In/Out
(gpm)
Velocity
(ft/sec)
Suction
Pressure
(psi.g)
Discharge
Pressure
(psi.g)
pump Head
(ft.hd Fluid)
EX-40
10.4
4.21
-1.052
63.4
148.9
EX-41
10.4
4.21
-1.052
60.6
142.6
EX-42
10.4
4.21
-1.052
56.3
132.4
EX-43
10.4
4.21
-1.052
56.5
133.0
EX-44
10.4
4.21
-1.052
62.5
147.0
EX-45
10.4
4.21
-1.052
65.3
153.4
EX-46
10.4
4.21
-1.052
67.8
159.2
EX-47
10.4
4.21
-1.052
69.5
163.0
EX-48
10.2
4.13
-1.012
68.9
161.6
EX-49
10.2
4.13
-1.012
67.0
157.2
EX-50
10.2
4.13
-1.012
67.5
158.3
EX-51
10.2
4.13
-1.012
67.9
159.4
EX-52
10.2
4.13
-1.012
66.5
156.1
EX-53
10.2
4.13
-1.012
65.3
153.2
EX-54
10.2
4.13
-1.012
65.9
154.6
EX-55
10.2
4.13
-1.012
65.3
153.2
EX-56
9.4
3.80
-0.859
68.5
160.3
EX-57
9.4
3.80
-0.859
69.7
163.2
EX-58
9.4
3.80
-0.859
69.3
162.1
EX-59
9.4
3.80
-0.859
72.7
170.0
EX-60
9.4
3.80
-0.859
74.3
173.8
EX-61
9.4
3.80
-0.859
75.4
176.2
EX-62
9.4
3.80
-0.859
76.7
179.3
EX-63
9.4
3.80
-0.859
76.3
178.4
EX-64
9.4
3.80
-0.859
74.7
174.6
EX-65
9.4
3.80
-0.859
74.4
174.0
EX-66
9.4
3.80
-0.859
76.4
178.5
Notes•
ft - foot
gpm - gallons per minute
sec- second
psi.g - pounds per square inch (gauge)
ft.hd - feet of head
Prepared by: LL Checked by: GTC
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
Pipe Flow Expert Results Key Pin, Velocity in ft/sec 0
rn f = flow in US 9p0.146 1 3, 4.582 6.060 7.53
gp. 11—g"
I 11 lo gp. 1191, 11 91 1� 1". m­ I 1.10 m gp.
Sheet 1
I 'P. 1 �o 11 gp. I
Sheet 2
Sheet 3
Designed using Pipe Flow Expert from www.pipeflow.com

` '' f - Flow m us gpm
1117, 3 pft
0 Oft
2.1633 in
APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
N78 789-----------
22.3133 g
N 152, 739.0ft
p= 0-0001 psis
N 57 789. t
20. 916 ps.
g=
T
N 29 788.0 t o
0.3660 psi.
IW-15 74 Oft
1 B.1719 psi
1190
US gpm
P2, f=27370
P3, i=261 89
P4, i=2d999 P6, f=226.10
4
4
N64 819.
10. 0355 ps.9g
N65 809.
1d.2157 ps.g�
N66 809.
1d.1922 ps.g�
N67 811.
13.1108 ps. g�
N68 802.
16.9058 ps.g�
A
A
A
A
N43 319.
Nod 899. t o
N45 809. t o
N46 811. t o
N47 802. t o
3.3139 P.I.
�
12. 4940 ps.g
12.3806 ps.g�
11. 3891 ps.g�
15.1341 ps.g�
S
S
S
S
S
Ni 818.Of1
N 3 808. Oft
N S 808. Oft
N 7 810. Oft
N 9 801. Oft
0.8660 psi.
0.8660 psi. I
0.8660 psi.
0.3660 Pi I
0.8660 psi.
T
W-1 764. ft
I760ft
IW-3 764f
757ft
W-5 733
p
.2
21p
11111. psi
2173psi
32861 p
024.2290
1190 US Dorn 1190 US Dom 11 90 us aom 11 90 US aom
11 90 us
�17----------- `)
----------- > �*
N79 788
226162 g
N 103, 788. Oft
N80 801
16 9106 g
N 104, 301. Oft
A
p=0.0001 psl.g
A
p=0.0001 psi.g
N 788. t
N 5 801 t
20. 945 ps . g Z
15. 890 Ps .9 S
T
7
31 7,37.O t o
$
N 33 800.0 t o
-
0.N3mo psi.
0.3mo psi.
IW-16 7 0f1
IW-17 7 0ft
17.7392 psi
24.2289 psi
1190 usgpm
1190 US gpm
P7, f=21429
P9, f=190.40
P10. f=l 66. 60
P12, f=1
N69 807.
N70 812.
N71 813.
14.6618 ps . g
12.4309 ps g g
11.9438 ps g g
A
A
A
N 43397.q to
N49812. to
N50313. 10
12.9401 ps . g �
10.70Z4 ps g �
10.2222 ps g �E
S
S
S
N 11 506.0 t o
N 13 811.0 t o
N 15 812.0 t o
0.3mo psi.
0.8669 psi. I
0.8660 psi.
IW-6 753. ft IW-7 753. ft IW-3 751. it
23.7%3 ps 25.9596 ps 27.2575 ps
1190usgn 190usgy119USgpm
[Sheet 1

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
P104-Close- P155_Cl-,
f-fluwinusgpm ©L'j
-----------P
� N83 796-----------
4e ' ' `°8L°` 3�-_________>
_ N 81 799
N84 802--_________
P `
N84 793
16.9,06
.g
N104, 801. Oft
17.6309 .g� N105, 799. Oft gg N116, 797.0ff8.7605 .gg N197, 796. Oft
15.92% .gg
N198, 802. Oft 19.7092
A
p= 0.0001 psi g
A p= 0.0001 psi g A P= 0.0001 ps l.g A p= 1.0901 psi.g
A
p= 1.0901 psi.g
N`9 801.
t
N6 799. t . 1 N 796. t
N6 802. t
3 793.1
1 `.1890 ps.g=
15. 092 ps.g=
ps.g=
17. 389 ps.g=
14. 079 Ps g*
.9876R
N33 309.0 t o
0.3660 psi.
N 35 798.0 t o .0 t o N 39 795.0 t o
0.3%0 psi. si.O.8660 psi.
/2,3.1228
N41 801.0 t o
O.8660 psi.
N41 792.I
0. 8660 psi
c cIW17
7 Oft
IW-18 740 aft 330ft IW-20 7 Oft
IW-21731.Oft
IW-22 730.Oft
24.2289 psi
25.9596 ps ps 28.1228 ps'
11.1513 psi.g
27.6902 psi.g
1190 US gpm
11(Z US gpm 11 90 1190 USgprn
pm
1190 JS
P 10, f=166. 60
P12, f=154. 70 P14, f=130.90 P99, f=130. 90 P16, f=119. 00 P79, f=107.10 P18, f=95.20LIS
P78, f�3.30 P19, f=71.40
P77, f=59.50
P21, f=35.70
N71 813.
N72 816. mN 100 816. Oft)( N73 814. N111 819.9ft 74 803.0ft rrry 112 8060ft N75 807. �*�N 113 805.0ft
N76 80d.
11.9433 ps.g
10.5917 ps.g 810.5675 psi.g 11.3774 ps.g?3 12. 9932 psi.g 16.0041 psi.g 514.6626 Psi.g 14.1776 ps.9814.8603 Psi.g
15.1912 ps.gs
A
A A A A
A
IF
IF
N 50 Bi 3.q
ps.g�
to
N51 816.
8.8701 psi.
to N52814.
N101, 816. Oft 9.6557 ps
N53803.
142824 psg=
tN54807.
4ps
12559
t
g=
N55804.102222
134695 ps
gp=9.0901
psi.gN15
Itt
812.0 t
N17 815.0 t N19 813.o N21 802.0
t o N23 806.0 t o
N25 803.13
[ o
a.8660 Psi.
a. 3660 psi. a. 3660 psi. 0.8660 psi.
a. 8660 Psi.,
O.8660 P51.11
IVI-1 751. ft
IW-9 747. ft IW-10 7430ft IW-11 7
ft IW-12 734 oft
IW-13 7340ft
272575 P.
30 2860 ps' 31 1 513 ps' 31 1 513 ps' 32.0166 ps'
30 71117 ps'
1
11.9011501311111
11.9011Saom 11.9011Saom 11.9011501311111 11.9011Saom
11.90US0DM
Sheet 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
e
'107-Clo ee:
`"eF1 f= flow m 0S
'�'
; ©❑>
e ' '°�°' P P
__________
P
133816
g
N106,
0.1 1.6 3.1 4.6 6.1
797.Of18.7605 .g N107,
T.E �� N84 802 N84 793
7%Oft 15.9296 gg N103, 302.Oft 19.7092
.gg N109,793.Oft
N84
23. ps 9�
N99,773.0ft
SHOW
A
p'0.0001 psi.g A p-0.0001
P.I.A
ps i.g A/27
p-0.0001 psi.g
p-0.0001 Psi.
'
N61 797.
t
N 796. [
N 502. t 793.
t
N63 773.
16. 600 psg=
17. 389 ps.g=
14. 079 psg=876
ps.g=
26.7475 ps.g=
N 37 796.0 t o
$ N39 795.E 1 0
$ N41 801.0 t o 792.0
t
N98 80
N41 772.0 10.3%0
Pi.
0.3%0 psi
03%0 Pi.60 psi.
15.4 Psi.g
0.3%0 psi.4LR.1
-pl___________N
84 790.
20.9684 ps
. g � N 110, 790.Oft
P=00001PsigIW-19
733 Oft
IW-20 7 Oft
IW 21 731. Oft730.0f1
IW-24723Oft23
1228 ps'
28.1223 ps'
31.151 3 psi.g psi g
22. 0657 psi. g
1190 US
pm 1190 usgpm
11901190 lJSgpm
1190 usgprn
N63 790.
1
19.2463
P79, f=107.10 P13, f-95. 20
P78, f=33.30 P19, f=71.40
P77, f=59.50=35.70
803.Oft mN 112 806. Oft
N75 807. mN113 805. Oft
N76 804. N77 80 m
�
O41 psi g14.6626 psi.g
A
14.1 T76 ps.g N14.,3603 psi.g
A
15.1912 ps.g� 15.5340 Ps.g8
A A
Y
N 41 739.0
t o
9.6660 P.L.
N 53 803.
14.2,324 ps.g=
t
N54 897.
12,45 99 ps.g=
t
N 55 804.
13.4695 ps.g=
t N56 am.
13.3124 ps.g=
t
_
N21 802.9 t o
N23 806.01 o
N25 803.01 o N27 802.01 o
IW-23 728.Oft
0.8660 Psi. 1
0.3%0 psi.1
0.3660 Psi0.8660 Psi.
27.2575 psi.g
11.90 usgpm
7 Of
IW-12 7p3st
d
IW-13 7IW-14 73s3
:1.153
1
32016
30.7137 Ps30.7137 pft
11.90USaom
11.90 USCIDM
11.90 usa6m 11.9011Sa6m
Sheet 3

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
Pipe
ID
Pipe Name
and Notes
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)
dP Total
Loss
(psi)
1
IW-1
6" Steel (ANSI) Sch. 80
5.76
54
11.9
0.15
0.00
0.00
0.00
0.00
-23.36
22
WH-1
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
9.26
3.98
43
HEADER1
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
2
IW-2
6" Steel (ANSI) Sch. 80
5.76
48
11.9
0.15
0.00
0.00
0.00
0.00
-20.77
23
WH-2
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
18.92
8.16
44
HEADER2
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
3
IW-3
6" Steel (ANSI) Sch. 80
5.76
52
11.9
0.15
0.00
0.00
0.00
0.00
-19.04
24
WH-3
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
18.66
8.05
45
HEADER3
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
4
IW-4
6" Steel (ANSI) Sch. 80
5.76
53
11.9
0.15
0.00
0.00
0.00
0.00
-22.93
25
WH-4
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
16.37
7.06
46
HEADER4
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
5
IW-5
6" Steel (ANSI) Sch. 80
5.76
69
11.9
0.15
0.00
0.00
0.00
0.00
-29.42
26
WH-5
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
25.14
10.85
47
HEADERS
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
6
IW-6
6" Steel (ANSI) Sch. 80
5.76
53
11.9
0.15
0.00
0.00
0.00
0.00
-22.93
27
WH-6
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
19.95
8.61
48
HEADER6
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
7
IW-7
6" Steel (ANSI) Sch. 80
5.76
58
11.9
0.15
0.00
0.00
0.00
0.00
-25.09
28
WH-7
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
14.80
6.38
49
HEADER7
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
8
IW-8
6" Steel (ANSI) Sch. 80
5.76
61
11.9
0.15
0.00
0.00
0.00
0.00
-26.39
29
WH-8
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
13.67
5.89
50
HEADERS
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
9
IW-9
6" Steel (ANSI) Sch. 80
5.76
68
11.9
0.15
0.00
0.00
0.00
0.00
-29.42
30
WH-9
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
10.55
4.54
51
HEADER9
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
10
IW-10
6" Steel (ANSI) Sch. 80
5.76
71
11.9
0.15
0.00
0.00
0.00
0.00
-30.29
31
WH-10
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
12.36
5.33
52
HEADER10
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
11
IW-11
6" Steel (ANSI) Sch. 80
5.76
70
11.9
0.15
0.00
0.00
0.00
0.00
-30.29
32
WH-11
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
23.06
9.95
53
HEADER11
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
12
IW-12
6" Steel (ANSI) Sch. 80
5.76
72
11.9
0.15
0.00
0.00
0.00
0.00
-31.15
33
WH-12
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
18.84
8.13
54
HEADER12
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
13
IW-13
6" Steel (ANSI) Sch. 80
5.76
69
11.9
0.15
0.00
0.00
0.00
0.00
-29.85
34
WH-13
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
21.18
9.14
55
HEADER13
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
14
IW-14
6" Steel (ANSI) Sch. 80
5.76
69
11.9
0.15
0.00
0.00
0.00
0.00
-29.85
35
WH-14
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
21.97
9.48
56
HEADER14
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
15
IW-15
6" Steel (ANSI) Sch. 80
5.76
40
11.9
0.15
0.00
0.00
0.00
0.00
-17.31
36
WH-15
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
37.64
16.26
57
HEADER15
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
16
IW-16
6" Steel (ANSI) Sch. 80
5.76
39
11.9
0.15
0.00
0.00
0.00
0.00
-16.87
37
WH-16
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
38.34
16.56
58
HEADER16
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
17
IW-17
6" Steel (ANSI) Sch. 80
5.76
55
11.9
0.15
0.00
0.00
0.00
0.00
-23.36
38
WH-17
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
25.15
10.86
59
HEADER17
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
18
IW-18
6" Steel (ANSI) Sch. 80
5.76
58
11.9
0.15
0.00
0.00
0.00
0.00
-25.09
39
WH-18
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
26.82
11.58
60
HEADER18
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
19
IW-19
6" Steel (ANSI) Sch. 80
5.76
63
11.9
0.15
0.00
0.00
0.00
0.00
-27.26
40
WH-19
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
28.55
12.33
61
HEADER19
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
20
IW-20
6" Steel (ANSI) Sch. 80
5.76
63
11.9
0.15
0.00
0.00
0.00
0.00
-27.26
41
WH-20
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
29.43
12.71
Page 1 of 2

APPENDIX N - PROPOSED REMEDIAL ALTERNATIVE DESIGN CALCULATIONS
CLEAN WATER INFILTRATION SYSTEM PIPES
CORRECTIVE ACTION PLAN UPDATE
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
Pipe
ID
Pipe Name
and Notes
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)
dP Total
Loss
(psi)
62
HEADER20
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
21
IW-21
6" Steel (ANSI) Sch. 80
5.76
71
11.9
0.15
0.00
0.00
0.00
0.00
-30.29
42
WH-21
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
22.88
9.88
63
HEADER21
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
86
IW-22
6" Steel (ANSI) Sch. 80
5.76
62
11.9
0.15
0.00
0.00
0.00
0.00
-26.82
85
WH-22
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
31.62
13.66
84
HEADER22
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
87
IW-23
6" Steel (ANSI) Sch. 80
5.76
62
11.9
0.15
0.00
0.00
0.00
0.00
-26.39
88
WH-23
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
34.53
14.92
89
HEADER23
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
90
IW-24
6" Steel (ANSI) Sch. 80
5.76
49
11.9
0.15
0.00
0.00
0.00
0.00
-21.20
91
WH-24
3/4" HDPE SDR 9
0.80
1
11.9
7.54
0.28
0.66
0.00
51.87
22.42
92
HEADER24
3/4" HDPE SDR 9
0.80
5
11.9
7.54
1.42
2.56
0.00
0.00
1.72
93
Pi
10" HDPE SDR 9
8.22
620
285.6
1.73
0.74
0.05
0.01
0.00
-7.87
64
P2
8" HDPE SDR 9
6.60
70
273.7
2.57
0.22
0.12
0.00
0.00
-4.18
65
P3
8" HDPE SDR 9
6.60
80
261.8
2.46
0.24
0.03
0.00
0.00
0.11
66
P4
8" HDPE SDR 9
6.60
81
249.9
2.35
0.22
0.07
0.00
0.00
0.99
83
P5
2" HDPE SDR 9
1.82
120
11.9
1.48
0.69
0.04
0.00
0.00
-9.20
67
P6
8" HDPE SDR 9
6.60
75
226.1
2.12
0.17
0.06
0.00
0.00
-3.80
68
P7
8" HDPE SDR 9
6.60
65
214.2
2.01
0.13
0.05
0.00
0.00
2.24
82
P8
2" HDPE SDR 9
1.82
100
11.9
1.48
0.58
0.04
0.00
0.00
-7.95
69
P9
8" HDPE SDR 9
6.60
70
190.4
1.79
0.12
0.04
0.00
0.00
2.23
70
P10
8" HDPE SDR 9
6.60
70
166.6
1.57
0.09
0.03
0.00
0.00
0.49
71
P12
8" HDPE SDR 9
6.60
85
154.7
1.45
0.10
0.03
0.00
0.00
1.35
80
P13
2" HDPE SDR 9
1.82
120
11.9
1.48
0.69
0.04
0.00
0.00
-7.04
72
P14
8" HDPE SDR 9
6.60
42.5
130.9
1.23
0.04
0.02
0.00
0.00
0.02
73
P16
6" HDPE SDR 9
5.07
80
119.0
1.90
0.20
0.05
0.00
0.00
-1.62
74
P18
6" HDPE SDR 9
5.07
40
95.2
1.52
0.07
0.03
0.00
0.00
1.34
75
P19
4" HDPE SDR 9
3.44
50
71.4
2.47
0.33
0.10
0.00
0.00
-0.68
94
P20
2" HDPE SDR 9
1.82
90
11.9
1.48
0.52
0.04
0.00
0.00
-4.52
76
P21
4" HDPE SDR 9
3.44
105
35.7
1.23
0.20
0.01
0.00
0.00
-0.34
95
P22
4" HDPE SDR 9
3.44
75
23.8
0.82
0.07
0.00
0.01
0.00
0.04
96
P23
4" HDPE SDR 9
3.44
60
11.9
0.41
0.02
0.00
0.00
0.00
-12.97
97
P24
2" HDPE SDR 9
1.82
55
11.9
1.48
0.32
0.04
0.00
0.00
-5.47
77
P77
4" HDPE SDR 9
3.44
50
59.5
2.05
0.24
0.00
0.00
0.00
-0.33
78
P78
6" HDPE SDR 9
5.07
90
83.3
1.33
0.12
0.00
0.00
0.00
0.49
79
P79
6" HDPE SDR 9
5.07
25
107.1
1.71
0.05
0.00
0.00
0.00
-3.01
81
P81
2" HDPE SDR 9
1.82
105
11.9
1.48
0.61
0.04
0.00
0.00
-4.48
99
P99
6" HDPE SDR 9
5.07
42.5
130.9
2.08
0.13
0.00
0.00
0.00
-0.81
110
Pilo
2" HDPE SDR 9
1.82
90
11.9
1.48
0.52
0.04
0.00
0.00
-5.38
111
P111
2" HDPE SDR 9
1.82
85
11.9
1.48
0.49
0.04
0.00
0.00
-4.10
112
P112
2" HDPE SDR 9
1.82
85
11.9
1.48
0.49
0.04
0.00
0.00
-1.07
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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