NC0004961_2_FINAL_CSA Supplement 2_Riverbend_Figures_20160826

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u
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ASH BASIN
}5ubsi �/1Nat r To Mi '�`� �,. A
RIVERBEND STEAM STATION y �.
V �.
NOTES:
I. SOURCES: USGS TOPOGRAPHIC MAP - MT. ISLAND LAKE, / CREATED 1993. USGS TOPOGRAPHIC MAP - LAKE NORMAN v -
SOUTH, CREATED 1993. \ = ' �£'� 6ka
4 J�
'=� t
SCALE (FEET) )
i000 o 1000 z000
F�2
SITE LOCATION MAP
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
DATE
AUGUST 2016
FIGURE
GASTON COUNTY, NORTH CAROLINA

LEGEND
CAMAASSESSMENT GROUNDWATER
MONITORING WELL
NPDES COMPLIANCE GROUNDWATER
MONITORING WELL
NPDES VOLUNTARY GROUNDWATER
MONITORING WELL
CAMAASSESSMENT SURFACE WATER
SAMPLE LOCATION
CAMA ASSESSMENT AREA OF WETNESS
SAMPLE LOCATION
0 WATER SUPPLY WELLS NOT SAMPLED
BY DEQ
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
COINCIDENT WITH DUKE ENERGY
PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
DUKE ENERGY PROPERTY BOUNDARY
LANDFILL COMPLIANCE BOUNDARY
LANDFILL/STRUCTURAL FILL BOUNDARY
' r
MW-15D �ii y MW-12
MW-15BR GWA-10S
S-4 � IFGW0rl' R
GWAk1S 19 RBSP002 ,m __s iW-4S
GWA-1BRU P' S-5 MW-4 BMW-18
i - D r,
MW-11 D j%, S 3 SW-1 MW-SD
x M ilV--5
W-11 M SR" AB-4S MW-5SMMW-
-;2D AB-1 D 0
ROADS T =
10' TOPOGRAPHY
HYDROGRAPHY
e A
` e 4 1� o
+, kf
P }
�L
f ,
NOTES:
1. AERIAL IMAGERY IS A COMBINATION OF NC ONEMAP (2010) AND A WSP AERIAL SURVEY (2014)
2. TEN FOOT TOPOGRAPHICAL CONTOURS OBTAINED FROM 2015 WSP SURVEY DATA
3. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
4. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L .0107 (a) 0 5OO 1,000 1,500
5. WASTE BOUNDARY IS APPROXIMATE.
6. AS -BUILT CAMA ASSESSMENT AND NPDES SERIES MONITORING WELLS ARE PROVIDED BY DUKE i Feet
ENERGY, WSP, AND OTHERS
7. CAMA HIV DELINEATION WELL LOCATIONS (BLUE LABELS) ARE APPROXIMATE AND HAVE NOT BEEN SURVEYED
8. YELLOW LABELS INDICATE AN ADDITIONAL ASSESSMENT WELL COMPLETED POST-CSA
9. FOR MORE DETAILS REGARDING INDIVIDUAL WATER SUPPLY WELLS, SEE THE WATER SUPPLY WELL
ANALYTICAL RESULTS MAP
3A4S M-4DBWhB
RBWW002 MW-14 S-6
tU - GWA-8D S.
1,09 = sw-2
is AB-3S AB-3D GWA-8S
AB 6S AB-3BR
11
D
AB-5S
AB-6AB -5
BRU` AB-5SL GWA 7D
GWA=7S GWA7BR
AB-8D
OB-1 OB-2
CiWA-bS�� MW-7SR'
AS-3D GWA-14D
AS-3S 'GWA-5S
GWA-5D GWA
" �:
p
P
4
ti}
SAMPLE LOCATION MAP
F)lDUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION
GASTON COUNTY, NORTH CAROLINA
GWA-23D GWA-23S
GWA-23BR GWA-22S
GWA-22D
MW-81 GWA-22BR-
MW-8D':
DATE
AUGUST 2016
FIGURE
1-2

tl
to
MW-15S/D/BR MW 12
GWA-10S
GWA 1 BRU �:` MIN-4S
j�
///%..MW-3S/D� �. MW 13S
MW 11 SR /DRI ,.
MW-5S/D K
-
t. MW-2S/SAS AB-1D MW-6S
/ GWA-2S/BRU/BR GWA-9S AB-4SID
O
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,AB�3S/BR :` GWA=8S/D BG 3S/D I ;'
MW-1 D`F: AB-5S/SL ��� HIV
/ :.° / I/� 1 /
MW-9S/D ° e� I (AB-6S/BRU �i ;.GWA-7.S/D/BR
''.. GWA 3S A p �-J,�J f
711
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t ^` `` G2 S/D/ ��^'BG 2S/D/BR
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GWA-11S-
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' p 1 ep =2 D AS 3S/D B
r
r .{ GWAR12S g8 `J,ou GWA 23S/D/BR /�, �
v' GWA- 4S x BG 1S/D
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o
r.
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-60
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Y ` V
7.
98
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NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ONEMAP (2010) AND WSP (2014)
2. HYDRO GRAPHY OBTAINED FROM PROVISIONAL JURISDICTIONAL WATERS MAP (USACE APPROVAL PENDING),
PROVIDED BY AMEC FOSTER WHEELER, DATED MAY 29, 2015
3. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
4. WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 6/15/2016
7. NM - GROUNDWATER ELEVATION NOT MEASURED DURING ROUND 6 (6/15/2016) GAUGING EVENT
8. WATER SUPPLY WELL LOCATIONS ARE APPROXIMATE. THE NUMBERS ASSOCIATED WITH
THE WATER SUPPLY WELLS CORRESPOND TO SECTION 4 OF THE COMPREHENSIVE SITE ASSESSMENT
REPORT (HDR, 2015)
9. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP (DATEDAPRIL 2014)
10. RIVERBEND ELEVATIONS ARE PRESENTED FOR REFERENCE AS PART OF THE SURVEY BY WSP, DATED JULY 27, 2015
11. AB-2S AND AB-7I WATER READING NOT USED FOR CONTOURING
GASTON COUNTY, NORTH CAROLINA
LEGEND
Ip
GWA-2S ASH BASIN ASSESSMENT GROUNDWATER
1pp.pp, MONITORING WELL
X WSP SURFACE WATER ELEVATIONS
GROUNDWATER CONTOUR LINE
- - - DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
- - - WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
10 FOOT TOPO CONTOURS
500 0 500 1,000
SCALE (FEET)
DATE
AUGUST 2016
FIGURE
3-1

NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ON EMAP (2010) AND WSP (2014)
2. HYDROGRAPHY OBTAINED FROM PROVISIONAL JURISDICTIONAL WATERS MAP (USACE APPROVAL PENDING),
PROVIDED BY AMEC FOSTER WHEELER, DATED MAY 29, 2015
3. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
4. WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
F)l
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 6/15/2016
7. NM - GROUNDWATER ELEVATION NOT MEASURED DURING ROUND 6 (6/15/2016) GAUGING EVENT
8. WATER SUPPLY WELL LOCATIONS ARE APPROXIMATE. THE NUMBERS ASSOCIATED WITH
THE WATER SUPPLY WELLS CORRESPOND TO SECTION 4 OF THE COMPREHENSIVE SITE ASSESSMENT
REPORT (HDR, 2015)
9. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP (DATED APRIL 2014)
10. RIVERBEND ELEVATIONS ARE PRESENTED FOR REFERENCE AS PART OF THE SURVEY BY WSP, DATED JULY 27, 2015
GASTON COUNTY, NORTH CAROLINA
LEGEND
GWA-2D ASH BASIN ASSESSMENT GROUNDWATER
1pp.pp, MONITORING WELL
GROUNDWATER CONTOUR LINE
- - - DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
- - COINCIDENT WITH DUKE ENERGY
PROPERTY BOUNDARY
STREAM
10 FOOT TOPO CONTOURS
500 0 500 1,000
SCALE (FEET)
DATE
AUGUST 2016
FIGURE
3-2

° aft i ,}£mow r b,�,(y" +➢'kf _.. ,�1,
� b
j ° a �a� ,1 4 sy►# •
v
,.,
^ x
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e f=
• \ LEGEND
/ / 1 GWA--2-2BR ASH BASIN ASSESSMENT GROUNDWATER
loo.00, MONITORING WELL
• 11• •• GROUNDWATER CONTOUR LINE
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
— — — COINCIDENT WITH DUKE ENERGY
1 PROPERTY BOUNDARY
STREAM
10 FOOT TOPO CONTOURS
/ x 600 0 600
�9 SCALE (FEET)
NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ONEMAP (2010)AND WSP (2014)
2. HYDROGRAPHY OBTAINED FROM PROVISIONAL JURISDICTIONAL WATERS MAP (USACE APPROVAL PENDING),
PROVIDED BYAMEC FOSTER WHEELER, DATED MAY 29, 2015
3. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
4. WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 611512016
7. NM - GROUNDWATER ELEVATION NOT MEASURED DURING ROUND 6 (611512016) GAUGING EVENT
8. WATER SUPPLY WELL LOCATIONS ARE APPROXIMATE. THE NUMBERS ASSOCIATED WITH
THE WATER SUPPLY WELLS CORRESPOND TO SECTION 4 OF THE COMPREHENSIVE SITE ASSESSMENT
REPORT (HDR, 2015)
9. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP(DATEDAPRIL 2014)
10. RIVERBEND ELEVATIONS ARE PRESENTED FOR REFERENCE AS PART OF THE SURVEY BY WSP, DATED JULY 27, 2015
11. BG-4BR, BG-5BR, AND GWA-9BR WATER READINGS NOT USED FOR CONTOURING
GASTON COUNTY, NORTH CAROLINA
DATE
AUGUST 2016
FIGURE
3-3

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NOTES:
300 0 300 600 ANTIMONY ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
F) RIVERBEND STEAM STATION ASH BASIN

- T
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LEGEND:
NOTES:
300 0 300 600
ANTIMONY ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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LEGEND:
0
0
NOTES:
N
300 0 300 600
ARSENIC ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
N
46
R. 770
1_
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4
♦�, ".:; I, ,� � � 1 660 o c ,, �� 680 � a .'S � � F $ � �- , $ � ?L
,� 1 1 6g0 6$ 6S0 0 90 670�"1,•,
Mom1 1<
300 0 300 600 ARSENIC ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
NOTES:

LEGEND:
♦
♦
ffi
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a
-
♦
♦
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\
1
1
1
1
t♦
1
1
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l
1
1
1
1
1
1
1 w.
I
\
NOTES:
300 0 300 600 ARSENIC ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
F) RIVERBEND STEAM STATION ASH BASIN

ININIS
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LEGEND:
NOTES:
300 0 300 600
BERYLLIUM ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
� �� �114�IhA .4 ,t � ,
$� awta
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NOTES:
N
300 0 300 600
F)l
BERYLLIUM ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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LEGEND:
C]
NOTES:
N
300 0 300 600
BORON ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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300 0 300 600 BORON ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
LEGEND:
NOTES:
N

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DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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NOTES:
_ _ _ A
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HEXAVALENT CHROMIUM ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
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a d i
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HEXAVALENT CHROMIUM ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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NOTES:
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300 0 300 600 CHROMIUM (TOTAL) ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
NOTES:
N
300 0 300 600
F)l
CHROMIUM (TOTAL) ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

r
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LEGEND:
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n
NOTES:
N
300 0 300 600
COBALT ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
j6ol
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s
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NOTES:
N
300 0 300 600
COBALT ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
LEGEND:
NOTES:
N

I r �
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sa
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we
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LEGEND:
NOTES:
N
300 0 300 600
IRON ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

_ r
3,600 (-3,400 )
r
244 (180 )
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147 (130 )
21910 (3,000)
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LEGEND:
NOTES:
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MANGANESE ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
N

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NOTES:
------------------------------
300 0 300 600
F��
MANGANESE ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
W
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ro
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NOTES:
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300 0 300 600
MANGANESE ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
N
NOTES:
300 0 300 600
SULFATE ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
N
1,550,0 1 1 � �aC�O nnu 680 670 AM ism x
► .. O 6
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r
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•
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00
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, t t
4 -'y•
300 0 300 600 SULFATE ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN
NOTES:

LEGEND:
♦
\ R
N
♦
It
t
t e
t
1
1
1
1
1
t♦
1
1
t
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NOTES:
300 0 300 600 SULFATE ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
F) RIVERBEND STEAM STATION ASH BASIN

.................
A6�4�S
169,000
v
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t
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LEGEND:
0
NOTES:
N
300 0 300 600 TOTAL DISSOLVED SOLIDS ISOCONCENTRATION CONTOUR MAP -SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

I
R
O
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0
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LEGEND:
NOTES:
I
7
N
300 0 300 600
TOTAL DISSOLVED SOLIDS ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

6�p r
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LEGEND:
NOTES:
N
300 0 300 600 TOTAL DISSOLVED SOLIDS ISOCONCENTRATION CONTOUR MAP -BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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11 � STREAM
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N
300 0 300 600
THALLIUM ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
4*
Al
At
�` P I ;
0 440'
olk I40P
* J
40,
40P 9
40'
40P
40P 40P
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q
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680
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NOTES:
m-mw iqlpprr,- mw
THALLIUM ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

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ZA
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LEGEND:
1
1
iWT
WON$
u'
NOTES:
710
. _
s •
- ��0, �' r�40 _ • to
I� - -
O r i
N
300 0 300 600
VANADIUM ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
II
I I
I I
II I'
I I
1
1
1
�
1
1
1
1
1
1
1
1
1
1
1
�
1
1
1
1
1
1
1
1
1
1
1
0
0
NOTES:
N
300 0 300 600
F)l
VANADIUM ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND:
1.2 (1d3)j
�J
c� (c�CS it
DWJT/3TJV
NOTES:
Err
N
300 0 300 600
F)l
VANADIUM ISOCONCENTRATION CONTOUR MAP - BEDROCK WELLS (BR)
DUKE ENERGY CAROLINAS, LLC
RIVERBEND STEAM STATION ASH BASIN

LEGEND
CAMAASSESSMENT GROUNDWATER
MONITORING WELL
NPDES COMPLIANCE GROUNDWATER
MONITORING WELL
NPDES VOLUNTARY GROUNDWATER
MONITORING WELLr
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
COINCIDENT WITH DUKE ENERGY
PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
DUKE ENERGY PROPERTY BOUNDARY
LANDFILL COMPLIANCE BOUNDARY
LANDFILL/STRUCTURAL FILL BOUNDARY
ROADS
10' TOPOGRAPHY
HYDROGRAPHY
GIN
r ST(
h erg ARI
f
MW-1S/MW-1D' AB-6•MW-9 p
MW-9D
MW-9BR E AB-6BF
GWA 1'5D AB-8D
GWA-15S
AB-8S
C-2S °
®► �0 _.
NOTES:
1. AERIAL IMAGERY IS A COMBINATION OF NC ONEMAP (2010) AND A WSP AERIAL SURVEY (2014)
2. TEN FOOT TOPOGRAPHICAL CONTOURS OBTAINED FROM 2015 WSP SURVEY DATA
3. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
4. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L .0107 (a) O
5. WASTE BOUNDARY IS APPROXIMATE.
6. AS -BUILT CAMA ASSESSMENT AND NPDES SERIES MONITORING WELLS ARE PROVIDED BY DUKE I
ENERGY, WSP, AND OTHERS
7. CAMA FIN DELINEATION WELL LOCATIONS (BLUE LABELS) ARE APPROXIMATE AND HAVE NOT BEEN SURVEYED
8. YELLOW LABELS INDICATE AN ADDITIONAL ASSESSMENT WELL COMPLETED POST-CSA
9. FOR MORE DETAILS REGARDING INDIVIDUAL WATER SUPPLY WELLS, SEE THE WATER SUPPLY WELL
ANALYTICAL RESULTS MAP
500 1,000 1,500
Feet
'4S
NW-13 B'
s« �. 4
iH BASIN
CONDARY
CELL
N
3WA-23D GWA-23S
GWA-23BR GWA-22S
GWA-22D
MW-81 GWA-22BR-A
i
{Aµ
r
+...• Y
SITE CROSS SECTION LOCATIONS DATE
DUKE ENERGY CAROLINAS, LLC AUGUST 2016
RIVERBEND STEAM STATION
FIGURE
GASTON COUNTY, NORTH CAROLINA 3-5.1

A
SOUTHWEST
800
700
0
Q
w
600
REC RQD
Lit -gy 0 to 100 0 to 100
1z4.0 (581.59)
139.0 (sss-)
500L
500L
0
GWA-4D GWA-4BR
GWA-4S
h
- - - - - - - - - - - - - - - - - - - - - - - - - - - - --
Trr�Trr
CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR RQD DATA WERE
200 400 600
REC RQD
Llm 10 0 to 100 0 to 100
12],0 (566.0)
140.0 (553.0)
160.0 (533.0)
1]4.5 (510.5)
800 1000 1200
REC RQD
umma9Y 0 to. 100 0 to 100
15a o (so—)
183.0 (580.9])
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
AS—Y�
O
GENERAL NOTES',
1. AREAS OF 2L EXCEEDANCES WITH
UNDETERMINED AREAS OF EXTENT BASED ON
ISOCENTRATION CONTOURS IN MAP VIEW ARE
SHOWN WITH A DASHED ZIG—ZAG BORDER.
NORTHEAST
800
M
700 N
S
W
z
J
600 2
U
REC RQD
Q
LeM1alo9y 0 to 100 0 to 100
139.0(63].0) 6�/
1400 1600 1800 2000 2200 2400 2600 2800
DISTANCE (ft)
REC RQD
L9nolo 0to 100 0 to 100
179o(594.99)
a—
211 B (552.19)
SECTION
SCALE : HORIZ 1 "
VERT 1— 120'
WELL CASING
WELL SCREEN
GROUT BACKFILI
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
DESIGNED BY:IM)l -
HDR Engineering, Inc. of the Carolinas CHECKED BY: -
N.C.B.E.L.S. License Number: F-0116 APPROVED BY: -
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION PROJECT NUMBER 000000000266802
WELL GRAPHIC LEGEND
NOT FOR
CONSTRUCTION
00
WC
IC
-W
GENERAL LEGEND
STRATIGRAPHY LEGEND
AREA OF 2L
EXCEEDANCES
WATER
(DASHED WHERE
INFERRED)
A —
ASH
LITHOLOGY LEGEND:
F —
■
FILL
META — DIABASE
S —
❑
ALLUVIUM
META — DIORITE
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N—VALUE) MEASURED DURING STANDARD
META — QUARTZ DIORITE
PENETRATION TESTING (SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E, N150 BPF)
M2 —
SAPROLITE/WEATHERED ROCK WHERE
PEGMATITE
N>50 BPF OR REC <50%
TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND RQD <50%
Ll BR —
SOUND ROCK WHERE REC > 85% AND RQD
>50%
DUKE ENERGY CAROLINAS,LLC
(> DUKE RIVERBEND STEAM STATION
ENERGY,
GASTON COUNTY NORTH CAROLINA
CROSS SECTION A -A'
0 1/2" 1" FILENAME 3-5.2.DWG SHEET
SCALE AS NOTED 3-5.2

CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC. AND ROD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
IM)l HDR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
SOUTHWEST A
Nr)RTHFGCT
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYDROSTRATIGRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYD ROSTRATI GRAPH I C LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
SECTION
SCALE: HORIZ 1
VERT 1" 120'
WELL GRAPHIC LEGEND
AB-7D
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER S. SPINNER, P.G.
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000266802
NOT FOR
CONSTRUCTION
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (RQD) CHART WITH DEPTHS NOTED
REC ROD
222.c
2,t0.0
260.0
280.0
302.5
IC
IC
I
STRATIGRAPHY LEGEND
■ WATER
A — ASH
LITHO LOGY LEGEND:
F — FILL
■
META — DIABASE
S — ALLUVIUM
META — DIORITE
M1 — SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N—VALUE) MEASURED DURING STANDARD
META — QUARTZ DIORITE
PENETRATION TESTING(SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E. N<50 BPF)
M2 — WEATHERED ROCK WHERE
PEGMATITE
N>50 BPF
N>50 BPF OR REC <50%
TZ — (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
BR — SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
4> ( DUKE
RIVERBEND STEAM STATION
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION A -A'
0 1/2" 1" FILENAME 3-5.3.DWG SHEET
SCALE AS NOTED 3-5.3

O
B
WEST
750
70Q
z 650
O
Q
w 600
550
500
0
200 400 600 800
REC ROD
113.0 (546.25) LXholo9y 0 t0 100 0 t0 100
120.0 (539.251
12].0 (532.26)
CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
HDR Engineering, Inc. of the Caro
N.C.B.EL.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
—113RU� C—lS
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
1000
1200
REC ROD
96.9Is9a.91 L-INY 0to 100 0to 100 PRIMARY DAM—\
2S
190.9166a.91 AB—BDAD-8S
t0i.315i6.])
------------------------------\-- 0 ----_--
1600 1800
\NGE (ft) REC ROD
Wh.1,iy 0 to 100 0 to 100
SECTION
SCALE: HORIZ 1"=240' 1—
VERT 1"=120'
WELL GRAPHIC LEGEND
GWA-11D
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER S. SPINNER, P.G
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000266802
NOT FOR
CONSTRUCTION
2000 2200 2400 2600
REC ROD
Limowgv 0 to 100 at. 100
15301566337
1600156133)
16901552337
I ITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
REC ROD
222.0 f521.331 Lith-gy 0 to 100 0 to 100
q.=
RM
302.5
GENERAL NOTES',
1. AREAS OF 2L EXCEEDANCES WITH
UNDETERMINED AREAS OF EXTENT BASED ON
ISOCENTRATION CONTOURS IN MAP VIEW ARE
SHOWN WITH A DASHED ZIG—ZAG BORDER.
EAST
�750
AB—SSL AB-5D
AB-5S
-----_--_—I
700 u]
I
M
W
650
I �
I
z
600 J
U
Q
1550
2800 3000
■C
■C
EEI
GENERAL LEGEND
STRATIGRAPHY LEGEND
AREA OF 2L
EXCEEDANCES
WATER
(DASHED WHERE
INFERRED)
A —
ASH
LITHOLOGY LEGEND:
F —
■
FILL
META — DIABASE
S —
❑
ALLUVIUM
META — DIORITE
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N—VALUE) MEASURED DURING STANDARD
META — QUARTZ DIORITE
PENETRATION TESTING (SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E. N<50 BPF)
M2 —
SAPROLITE/WEATHERED ROCK WHERE
PEGMATITE
N>50 BEE OR REC <50%
71 TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
FI BR —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
RI\/FRRFNn RTFAM STATInN
(> DUKE
ENERGY,
GASTON COUNTY
NORTH CAROLINA
CROSS SECTION B-B'
0 1/2" 1" FILENAME 3-5.4.DWG SHEET
SCALE AS NOTED 3-5.4

CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
F)j HDR Engineering, Inc. of the Carolinas
N.C.B.ELS. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
WEST
a
LO
I
M
W
cr
c�
L,
w
z
Z3
x
U
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR -DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
SECTION
SCALE: HORIZ 1" 240' -
VERT 1"=120'
WELL GRAPHIC LEGEND
AB-4D
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER S. SPINNER, P.G
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000266802
NOT FOR
CONSTRUCTION
I THOLOGY - RECOVERY (REC) - ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
REC ROD
222.0
240.0
260.0
2sa.0
302.5
B'
EAST
750
700
650 z
0
r
w
iv
600
550
500
LITHOLOGY LEGEND:
META - DIABASE
META - DIORITE
META - QUARTZ DIORITE
PEGMATITE
DUKE ENERGY CAROLINAS,LLC
(> DUKE RIVERBEND STEAM STATION
ENERGY,
GASTON COUNTY NORTH CAROLINA
IC
I
STRATIGRAPHY LEGEND
■ WATER
■ A -
ASH
■ F -
FILL
S -
ALLUVIUM
-
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
ElM1
(N-VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SPT) IS LESS THAN 50
M2 -
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
N>50 BIDE OR REC <50%
TZ -
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
BR -
SOUND ROCK WHERE REC > 85% AND ROD
>50%
CROSS SECTION B-B'
0 1/2" 1" FILENAME 3-5.5.DWG SHEET
SCALE AS NOTED 3-5.5

C
CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
HDR Engineering, Inc. of the Caro
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
SECTION r7l\
SCALE: HORIZ 1"=240'
VERT 1"=120'
WELL GRAPHIC LEGEND
MW-11DR
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER S. SPINNER, P.G
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000266802
NOT FOR
CONSTRUCTION
I ITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
REC ROD
222.0
240.0
260.0
20.0
302.5
NC
C
750
700
650
C
600
550
500
■0I
STRATIGRAPHY LEGEND
■ WATER
■ A —
ASH
LITHOLOGY LEGEND:
F —
■
FILL
META — DIABASE
S —
❑
ALLUVIUM
META — DIORITE
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N—VALUE) MEASURED DURING STANDARD
META — QUARTZ DIORITE
PENETRATION TESTING (SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E. N<50 BPF)
M2 —
SAPROLITE/WEATHERED ROCK WHERE
PEGMATITE
N>50 BPF OR REC <50%
71 TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
FI BR —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
RI\/FRRFNn RTFAM STATInN
Vf DUKE
Z ENERGY
GASTON COUNTY
NORTH CAROLINA
CROSS SECTION C-C'
0 1/2" 1" FILENAME 3-5.6.DWG SHEET
SCALE AS NOTED 3-5.6

D
WEST
,�700 CATAWBA RIVER
MOUNTAIN ISLAND LAKE
a
0 200 400 600 800 1000 1200
1400 1600
DISTANCE (ft).
SECTION 1�
SCALE: HORIZ 17=240' —
VERT 1"=120'
CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
WELL GRAPHIC LEGEND
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
AB-6BRU
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
4 ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
WELL CASING
GWA-145, AS-2S, OR GWA-135. WATER TABLE SYMBOLOGY
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
IS PRESENTED BELOW. _ �_
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
—
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
FROM A BOREHOLE.
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
WELL SCREEN
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
THE PRIMARY SOURCES OF DATA USED IN THE
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
6. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
GROUT BACKFILL
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
HOR Engineering, Inc. of the Carolinas
N.C.B.E.L.S. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
PROJECT MANAGER S. SPINNER, P.G
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
00000000026681
NOT FOR
CONSTRUCTION
REC RQD
"mill :111111
I INN
iniii1iniiiii
D'
EAST800
.GWA-6D GWA-6S GWA-14D GWA-14S
— — — — — — — — — — \_ — — Aft
\ — — — — — — — — — — — — — — — —
1800 2000
2200 2400 2600
700
600
--1 500
2800
■ EED
■C
■ W
STRATIGRAPHY LEGEND
■ WATER
■ A —
ASH
LITHOLOGY LEGEND:
F —
■
FILL
META — DIABASE
S —
❑
ALLUVIUM
META — DIORITE
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N—VALUE) MEASURED DURING STANDARD
META — QUARTZ DIORITE
PENETRATION TESTING (SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E. N<50 BPF)
M2 —
SAPROLITE/WEATHERED ROCK WHERE
PEGMATITE
N>50 BPF OR REC <50%
TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
BR —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
(> DUKE RIVERBEND STEAM STATION
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION D-D'
0 1l2" 1^ FILENAME 3-5.7.DWG SHEET
SCALE AS NOTED 3-5.7

it
■
■
■
■
■
CROSS SECTION NOTES`.
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON JUNE
15-16, 2016. DEPTH TO WATER WAS MEASURED WITH AN
ELECTRIC PROBE FROM BELOW TOP OF CASING AND WAS
RECORDED WITHIN 0.01 FEET. WATER LEVELS PRESENTED ON
CROSS SECTIONS ARE FROM SHALLOW WELLS ONLY AND
REPRESENT THE WATER TABLE. WATER LEVELS WERE NOT
MEASURED FOR BG-4S, AB-4S, MW-13, MW-11SR, AB-4S,
GWA-14S, AS-2S, OR GWA-13S. WATER TABLE SYMBOLOGY
IS PRESENTED BELOW. _V_
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED
FROM A BOREHOLE.
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE
THE PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS
TO NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND
ROCK) IN A BOREHOLE; IN CASES WHERE SPT WAS NOT
PERFORMED AND WHERE REC AND/OR ROD DATA WERE
HDR Engineering, Inc. of the Caro
N.C.B.ELS. License Number: F-0116
440 S. Church Street, Suite 900
Charlotte, NC 28202-2075
704.338.6700
z
0
a
E
NORTH
900 1
800
700
600
REG ROD
Lith..,y
°°°,11111111,II
UNAVAILABLE DUE TO DRILLING METHOD, THE NATURAL
MATERIALS WERE ASSIGNED TO A HYD ROSTRATI GRAPHIC LAYER
BASED ON A REVIEW OF THE BOREHOLE LOG, FIELD
PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER TO
THE HYDROSTRATI GRAPHIC LEGEND FOR MORE DETAILS.
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE
INSTALLED VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE
DETERMINED DUE TO THIS DRILLING METHOD AND ARE
THEREFORE NOT PRESENTED FOR NEWLY INSTALLED WELLS.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST 2015) AND
APPENDIX A OF CSA SUPPLEMENT 2 FOR WELL
CONSTRUCTION RECORDS AND GEOLOGIC BORING LOGS.
6. BEDROCK (BR -DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER
TESTING WHERE PERFORMED.
WELL CASING
WELL SCREEN
GROUT BACKFILI
PROJECT MANAGER S. SPINNER, P.G
DRAWN BY:
DESIGNED BY:
-
CHECKED BY:
-
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000266802
2600 (46323)
2800(46323)
302.5 (440.73)
SECTION
SCALE: HORIZ 1"=240' -
VERT 1"=120'
WELL GRAPHIC LEGEND
NOT FOR
CONSTRUCTION
E'
SOUTH
GWA-13D
'GWA-13S
700
REC ROD
Lmmo.2y 0 to 100 0 to 100
■C
■C
■m
STRATIGRAPHY LEGEND
■ WATER
■ A -
ASH
LITHOLOGY LEGEND:
F -
■
FILL
META - DIABASE
S -
❑
ALLUVIUM
META - DIORITE
M1 -
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
(N-VALUE) MEASURED DURING STANDARD
META - QUARTZ DIORITE
PENETRATION TESTING (SPT) IS LESS THAN 50
BLOWS PER FOOT (I.E, N150 BPF)
M2 -
SAPROLITE/WEATHERED ROCK WHERE
PEGMATITE
N>50 BPF OR REC <50%
TZ -
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
Ll BR -
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
(> DUKE RIVERBEND STEAM STATION
ENERGY,
GASTON COUNTY NORTH CAROLINA
CROSS SECTION E-E'
0 1/2" 1" FILENAME 3-5.8.DWG SHEET
SCALE AS NOTED 3-5.8

,— o
0
'oo `�o 00 70 It
Calcium
CATIONS
0
0
do 0 ❑ Background Wells
¢�
❑ Porewater
o�Q �3x ❑ Area of Wetness
60 �o s ® Surface Water
o,� a S-6 N� .
�3
oar Qo \ bo
(�C S-9
o � ryo �o 00 �o 0o g
Chloride+Nitrogen, NO2 plus NO3
ANIONS
Samples with a charge balance error (CBE) of < 10% are shown. See companion table for CBE calculations.
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 62 used (assumes mostly nitrate).
DATE
PIPER DIAGRAM - BACKGROUND GROUNDWATER,
POREWATER, AREAS OF WETNESS, AND SURFACE WATER AUGUST 2016
F)l DUKE ENERGY CAROLINAS, LLC FIGURE 3-6.1
RIVERBEND STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA

Mx� 00
p GWA-10
�p rno -
q,
l0ly
)� 1
CO 0
U S-9
a AB-55 ^
R
,— o Y Si
0 moo cso mo "o `Jo
Calcium
CATIONS
�o Shallow Wells
d Porewater
�3 ❑ Area of Wetness
�o dSurface Water In
$
6 s4
G 9
- - p0
ryo
�o
V1 100
C�
60
�^ GWA-9
C �
Q
�m �o NG
4 - 60
d
U
r 60 A -3
P 40
AB
AB-7
N0 C
20
'o 7 0
o ryo ao 00 00 00
Chloride+Nitrogen, NO2 plus NO3
ANIONS
Samples with a charge balance error (CBE) of < 10% are shown. See companion table for CBE calculations.
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 62 used (assumes mostly nitrate).
DATE
PIPER DIAGRAM - SHALLOW GROUNDWATER,
POREWATER, AREAS OF WETNESS, AND SURFACE WATER AUGUST 2016
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 3-6.2
GASTON COUNTY, NORTH CAROLINA

M 10 0o
❑
Deep Wells
Porewater
Jy _
:.
�3x
El
of Wetness
ryQ
orno
Surface Water
c
a�
s-s
s,
G�
Zo
x
OaZ QO
ao
GWA-9
UC
a� AB-5S \
ryo
o! '--"�> V
0
CATIONS
Chloride+Nitrogen, NO2 plus NO3
ANIONS
Samples with a charge balance error (CBE) of < 10% are shown. See companion table for CBE calculations.
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 62 used (assumes mostly nitrate)
DATE
PIPER DIAGRAM - DEEP GROUNDWATER,
POREWATER, AREAS OF WETNESS, AND SURFACE WATER AUGUST 2016
F)l DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 3-6.3
GASTON COUNTY. NORTH CAROLINA

0
0
'eo `'o
Calcium
CATIONS
�qj
0
M". CO Wo
�O
n
�y 4.
d�
�
ory� 3x
00 coo w
of 9°m
o, s-6 s,
oao Qo ao
Ur
ao / AB-esAPG� \ do
R
Bedrock Wells
Porewater
❑
Area of Wetness
Surface Water
0
o ryo ao 00 00 00
Chloride+Nitrogen, NO2 plus NO3
ANIONS
Samples with a charge balance error (CBE) of < 10% are shown. See companion table for CBE calculations.
NOTE: Nitrate plus Nitrite was reported by the laboratory and is used here. Equivalent weight of 62 used (assumes mostly nitrate).
DATE
PIPER DIAGRAM - BEDROCK GROUNDWATER,
POREWATER, AREAS OF WETNESS, AND SURFACE WATER AUGUST 2016
DUKE ENERGY CAROLINAS, LLC FIGURE
RIVERBEND STEAM STATION ASH BASIN 3-6.4
GASTON COUNTY, NORTH CAROLINA