NC0004979_3_FINAL_CSA Supplement 2_Allen_Figures_20160802

SITE LOCATION MAP
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
DATE
AUGUST 2016
ElUDRE
1-1

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
CAMAASSESSMENT SOIL BORING
® WATER SUPPLY WELL - NOT SAMPLED BY
DEQ
WATER SUPPLY WELL - SAMPLED BY DEQ
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
COINCIDENT WITH DUKE ENERGY PROPERTY
BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH STORAGE AREA BOUNDARY
DUKE ENERGY PROPERTY BOUNDARY
ROADS
10' TOPOGRAPHY
rl* s s
X
fA
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)
5. WASTE BOUNDARY IS APPROXIMATE. 0
6. AS -BUILT CAMA ASSESSMENT AND NPDES SERIES MONITORING WELLS ARE PROVIDED BY DUKE 1
ENERGY, WSP, AND OTHERS
7. EPA RULE CCR WELL AND CAMA H/V DELINEATION WELL LOCATIONS (BLUE LABELS) ARE APPROXIMATE AND HAVE
NOT BEEN SURVEYED
8. VOLUNTARY MONITORING WELL AB-8 WAS FOUND DAMAGED AND ABANDONED IN 2010
9. LIGHT GREEN LABELS INDICATE AN ADDITIONAL ASSESSMENT WELL COMPLETED POST-CSA
10. FOR MORE DETAILS REGARDING INDIVIDUAL WATER SUPPLY WELLS, SEE THE WATER SUPPLY WELL
ANALYTICAL RESULTS MAP
k ce "" - a •r.
"4 BG-4D
f
S BG-4S
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GWA-11's GWA-ss AB-31D AB-31S
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AB-38S GWA-4BR GWA-4S
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a =�'
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9S SE-4iP' GWA-SU
AB-34S(
AB-37D
AB-36SIF ri
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4-15D 0 - AB-35D La`lN AB-gS
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ALB-14BR AB 2 S6 AB 35S j a{{�-_ AB'29D ANSW015
�,.,t '1 AB-14D '-. '_ I `AB'30D AB`-295 AB-29S
• GAB`-2D ANFD001 AB-30S AB-27D AB-8 SW-7
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® GWA 14S*= �► - AB-27BR
•ft r► . GWA-22 D, GWA-22S ,.. SW'3 SW-4
GWA-21BROO �� - - -- o ®-
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�S '• •( �tAB-13S ", AB-13D AB-24S''111! AB-25SLA6-256RU GGWA36R�
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�5 • SB-9 ANSP005 SW-2
AB-4Srm AB-41) t
AB-23BRU g 7
AB-4131 �GWA-23S g. GWA-23D'
SW_5 AB-23S S-6
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GWA-98R GYU VI��Q - ANSP001
AB 21BR
GWff-9 AB-21S AB-21D AB-22Dmw
-4 AB-1OD
S
AB-216RL AB-21SL :� y AB-220R AB-22S
SW-1 AB-10S
.� ; ANWW002 ANSP002
rAB-12D ANSP003 S'2
Ap, AB-125
AB-5
,
GWA-26D GVVA-2D
AB-6A
Ap, GWA-26S GWA-1 D GWA-2S
GWA-1S m_•
al
500 1,000 1,500
Feet
SAMPLE LOCATION MAP
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
DATE
AUGUST 2016
FIGURE
1-2

WATER SUPPLY WELL ANALYTICAL RESULTS
DATE
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
GASTON COUNTY, NORTH CAROLINA
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� CAMAASSESSMENT GROUNDWATER MONITORING WELL ''. -;. ' . k �r
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$ NPDES COMPLIANCE GROUNDWATER MONITORING WELL C L, : ,1i LNU
NPDES VOLUNTARY GROUNDWATER MONITORING WELL 4 . ' 4 * , , oi, t ' � J .�. '� k . � �
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k r . v .. 1 It- ` ' ; fr, �,. �' ,�,� , j w �' '-i. '
„ .
DUKE ENERGY PROPERTY BOUNDARY e , * P -r:t r ss , = 91�7 pl *� IMA '- , '. .r
y,
0 250 500 1,000 1.500 2,000t. I y, G°•
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FIGURE NOTES:
1. ASH BASIN WASTE BOUNDARIES AND ASH STORAGE AREA BOUNDARIES ARE APPROXIMATE.
2. PRIVATE WELL LOCATIONS ARE APPROXIMATE.
3. ORTHOPHOTOGRAPHY IS FROM INC ONEMAP GIS ONLINE SERVICE AND DUKE ENERGY CAROLINAS, LLC.
4. DUKE ENERGY PROPERTY BOUNDARY WAS SUPPLIED BY DUKE ENERGY REAL ESTATE.
5. ELEVATION CONTOURS PROVIDED TO DUKE ENERGY BY WSP (2015)
TABLE NOTES:
1. ANALYTICAL RESULTS REFLECT SAMPLING CONDUCTED BY NORTH CAROLINA DEPARTEMENT OF ENVIRONMENTAL QUALITY
2. TABLE INCLUDES DATA PROVIDED TO DUKE ENERGY BY NCDEQ ON 3/15/2016
2. YELLOW HIGHLIGHTING INDICATES AN EXCEEDANCE OF THE APPLICABLE STANDARD

NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ONEMAP (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. ASH BASIN WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 5/2/2016
7. NM - NOT MEASURED DURING THE 5/2 WATER GAUGING EVENT. WATER ELEVATIONS WERE MEASURED ON 5/23/16,
BUT WERE NOT UTILIZED FOR POTENTIOMETRIC SURFACE EVALUATION
8. SITUATIONS WHERE S/SL PAIRING EXIST S ELEVATIONS WERE USED FOR CONTOURS.
9. SURFACE WATER ELEVATIONS WERE MEASURED 7/11/2016
10. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP (DATED APRIL 2014)
11. 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)
500 0 500 1,000
SCALE (FEET)
FEZ
GASTON COUNTY, NORTH CAROLINA
LEGEND
e
GWA-2S ASH BASIN ASSESSMENT GROUNDWATER
100.00- MONITORING WELL
e
GWA-2S ASH BASIN COMPLIANCE GROUNDWATER
1CIO. 00- MONITORING WELL
GWA-2-25 ASH BASIN VOLUNTARY GROUNDWATER
100.00� MONITORING WELL
• WATER SUPPLY WELL NOT SAMPLED BY NCDEQ
WATER SUPPLY WELL SAMPLED BY NCDEQ
GROUNDWATER CONTOUR LINE (DASHED WHERE
INFERRED)
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
_ ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
APPROXIMATE GROUNDWATER FLOW DIRECTION
10FT WSP SURVEY CONTOURS
DATE
AUGUST 2016
FIGURE
3-1

3Y,
NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ONEMAP (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. ASH BASIN WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 5/2/2016
7. NM - NOT MEASURED DURING THE 5/2 WATER GAUGING EVENT. WATER ELEVATIONS WERE MEASURED
ON 5/23/16, BUT WERE NOT UTILIZED FOR POTENTIOMETRIC SURFACE EVALUATION
8. AB-34D, AB-23BRU AND AB-25BRU WATER READINGS NOT USED FOR CONTOURING
9. SURFACE WATER ELEVATIONS WERE MEASURED 7/11/2016
10. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP (DATED APRIL 2014)
11. 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)
500 0 500 1,000
SCALE (FEET)
FEZ
f: 'f
er
GASTON COUNTY, NORTH CAROLINA
LEGEND
GWA-2D ASH BASIN ASSESSMENT GROUNDWATER
100.CIO - MONITORING WELL
e
GWA-2D ASH BASIN COMPLIANCE GROUNDWATER
100.CIO - MONITORING WELL
e
GWA-2D ASH BASIN VOLUNTARY GROUNDWATER
100.00 MONITORING WELL
0 WATER SUPPLY WELL NOT SAMPLED BY NCDEQ
WATER SUPPLY WELL SAMPLED BY NCDEQ
GROUNDWATER CONTOUR LINE (DASHED WHERE
INFERRED)
- - - DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
_ ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
APPROXIMATE GROUNDWATER FLOW DIRECTION
10FT WSP SURVEY CONTOURS
DATE
AUGUST 2016
FIGURE
3-2

NOTES:
1. AERIAL PHOTOGRAPHY OBTAINED FROM NC ONEMAP (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. ASH BASIN WASTE BOUNDARY IS APPROXIMATE
5. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY
6. GROUNDWATER ELEVATIONS WERE MEASURED ON 5/2/2016
7. NM - NOT MEASURED DURING THE 5/2 WATER GAUGING EVENT. WATER ELEVATIONS WERE MEASURED
ON 5/23/16, BUT WERE NOT UTILIZED FOR POTENTIOMETRIC SURFACE EVALUATION
8. AB-34D, AB-23BRU AND AB-25BRU WATER READINGS NOT USED FOR CONTOURING
9. SURFACE WATER ELEVATIONS WERE MEASURED 7/11/2016
10. TOPOGRAPHIC CONTOURS ACQUIRED FROM WSP (DATED APRIL 2014)
11. 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)
500 0 500 1,000
SCALE (FEET)
FEZ
GASTON COUNTY, NORTH CAROLINA
LEGEND
ASH BASIN ASSESSMENT GROUNDWATER
GWA-2 BR
MONITORING WELL WITH GROUNDWATER
100.00'
ELEVATION IN FEET
0
WATER SUPPLY WELL NOT SAMPLED BY NCDEQ
WATER SUPPLY WELL SAMPLED BY NCDEQ
GROUNDWATER CONTOUR LINE (DASHED WHERE
INFERRED)
- - -
DUKE ENERGY PROPERTY BOUNDARY
ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT
WITH DUKE ENERGY PROPERTY BOUNDARY
STREAM
APPROXIMATE GROUNDWATER FLOW DIRECTION
10FT WSP SURVEY CONTOURS
DATE
AUGUST 2016
FIGURE
3-3

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ANTIMONY ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN

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C J
m Im � i
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11
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DUKE ENERGY CAROLINAS, LLC
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DUKE ENERGY CAROLINAS, LLC
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NOTES:
LEGEND:
Q� N
m m m m
m m m m
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11
ARSENIC ISOCONCENTRATION CONTOUR MAP - SHALLOW WELLS (S)
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN

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DUKE ENERGY CAROLINAS, LLC
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0
11
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DUKE ENERGY CAROLINAS, LLC
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DUKE ENERGY CAROLINAS, LLC
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LEGEND:
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DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
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LEGEND:
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DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
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DUKE ENERGY CAROLINAS, LLC
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LEGEND:
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ZINC ISOCONCENTRATION CONTOUR MAP - DEEP WELLS (D AND BRU)
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
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LEGEND:
JIIII IIIII IIIII IIIII
11
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DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN
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LEGEND`
CAMAASSESSMENT
GROUNDWATER MONITORING WELL
+ ,
NPDES COMPLIANCE
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,
NPDES VOLUNTARY GROUNDWATER,)
MONITORING WELL
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ASH BASIN WASTE BOUNDARY
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DUKE ENERGY PROPERTY'
BOUNDARY_'�E.
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NOTES:
1. AERIAL IMAGERY IS A COMBINATION OF NC ON EMAP (2010) AND A WSP AERIAL SURVEY (2014)
2. TEN FOOT TOPOGRAPHICAL CONTOURS OBTAINED FROM 2015 WSP SURVEY DATA
2. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE
3. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 0 500 1,000 1,500
02L .0107 (a)
4. WASTE BOUNDARY IS APPROXIMATE Feet
5. AS -BUILT CAMA ASSESSMENT AND NPDES SERIES MONITORING WELLS ARE PROVIDED BY DUKE
ENERGY, WSP, AND OTHERS
6. EPA RULE CCR WELL LOCATIONS AND CAMA H/V DELINEATION WELL LOCATIONS (BLUE LABELS) ARE
APPROXIMATE AND HAVE NOT BEEN SURVEYED
7. LIGHT GREEN LABELS INDICATE AN ADDITIONAL ASSESSMENT WELL COMPLETED POST-CSA
GWA-7D
GWA-8D GWA-7S,
: GWA-6BR +4
GWA-6D
AB-39S GWA-65
AB-39D
AB 33D
\AB-33S Q
AB=32S GWA-SD w
CGWA-SS ,,.
AB-34S AB-32D GWA-56R '-
i
AB-34D
_ AB-31 D GWA-4S
AB-35BR D Ag_31S D'GWA-4BR
AB-35S -) 0
AB-30D AB-29D AB-9D 1
AB-29SL � AB-29S AB-9S
AB-3 D
AB-27D
" -
AB-2-28; AB- 'A6-2.7S i AB-8
r AB-27BR
A-22 s .
A13-24S' AB-25S A13-26D
3D • o o AB-24SL AB-25SL E,' GWA-3D
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:a
:. AB-25BR G-3S
WA . e
D AB-23BRU I
AB,23S
y
AB-22D AB-10D.,
-AB-22S A13-10S
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.+Fy.
AB-5� r ~e
e
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A., GWA-2S I W t
GWA-1S u1GWA-1D
GWA-1 B R ors
AB-11 D
SITE CROSS SECTION LOCATIONS
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
DATE
AUGUST 2016
FIGURE
3-5.1

1 12 13 14 15 16 17 18
A
NORTH
A'
SOUTH
700
700
GWA-8D WA -SS
BG-4BR
BG-4D
BG-4S
PLANT ALLEN
ROAD
650
-
_ -
SB-3
650
-
- - =
ASH STORAGE AREA
DISCHARGE CANAL
6G0
- - -
600
Q-
-
- - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - -
W
Z
O
(D
L�
'Q
J
W
LIJ
Uj
550
550
REC
Lithology
Li
0 to 100
,W9,6666)
REC ROD
Lithology
0 to 100 0 to 100
7xx
x x
x x
x x
500
X x
500
140.0 (618.8) x x
20.0 (663.6)
x x
x x
i30.0 (543.6)
x x
x x
..0 (46.8)
x x
1 ]0.0116].6)
a5G
0 200 400
600 800 1000
1200 1400 1600
1800
2000
2200 2400
450
2600 2800
DISTANCE (ft)
SECTION
SCALE: HORIZ 1-200' -
STRATIGRAPHY LEGEND
VERT 1"=40'
A -ASH
CROSS SECTION NOTES:
LITHOLOGY -
RECOVERY (REC) - ROCK QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL GRAPHIC LEGEND
DESIGNATION
(RQD) CHART WITH DEPTHS NOTED
■
F -FILL
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
Lithology
REC RQD
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC LEGEND FOR MORE DETAILS.
BG-4BR
0 to 100 0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM°,.°I,,,o
❑
A - ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER 4.
ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
11 x
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
x
M1 - SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
-4-
_
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL CASING
x
x
❑
(N-VALUE) MEASURED DURING STANDARD
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
FOR NEWLY INSTALLED WELLS.
x x
LITHOLOGY LEGEND
PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE. 5.
TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
x x
'°°"°"A
METADIABASE
❑
BLOWS PER FOOT (I.E. N<50 BPF)
M2 - SAPROLITE/WEATHERED ROCK WHERE
COMPREHENSIVEITE )AND A
HSUPPLEMENT
\ \
N>50 BPF OR REC <50%
3. STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE
2S FOR WEILL CONSTRUCTIONARECORDSAPPENDIX
WELL SCREEN
/
PRIMARY SOURCES IG DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
GEOLOGIC BORING LOGS.
\ \
META -QUARTZ DIORITE
■
TZ - TRANSITION ZONE) PARTIALLY WEATHERED ROCK
(
WHERE RECOVERY >50% AND RQD <50%
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A 6.
BEDROCK BR -DESIGNATED WELLS WERE SCREENED ACROSS
( )
/
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING°I«.n
\ \
/
METAGRANODIORITE
❑
BR - SOUND ROCK WHERE REC > 85% AND RQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
>50%
PPn.IFrT MANAr PR -
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDR Engineering, Ina 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
DUKE ALLEN STEAM STATION
(-
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION A -A'
0 1/2" 1- FILENAME FIGURE 2A.DWG SHEET CC�
SCALE AS NOTED 3-5.2
C
B
A

1 2 13 4 15 16 17 18
A'
SOUTH
700
AB-35S
AB-35BR GWA-22S
700
AB-35D GWA-22D
STRUCTURAL FILL
SB-4
-
AB-13D
650
650
-
- - - - -- - - - - - - - - - - - - - - - _
-------------------------
- -
- - -
600
600
Q
W
ZO
0
L_ a
w
W
W w
(n
550
550
L
Z
J
S
U
Q
REC RQD
Lithology
0 to 100 0 to 100
145.5(516.2)
500
500
x x
x x _
REC
x x
Lithology 0 to 100
x x
,]50(4875)
110.5 (491.2)
x x AM
186 0 (d]6.5
450 450
2800 3000 3200 3400 3600 3800 4000 4200 4400 4600 4800 5000 3600 5200 5400 5600
SECTION STRATIGRAPHY LEGEND
SCALE HORIZ 1"=200' -
VERT 1"=40' A - ASH
CROSS SECTION NOTES: LITHOLOGY - RECOVERY (REC) - ROCK QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2, HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE WELL GRAPHIC LEGEND DESIGNATION (RQD) CHART WITH DEPTHS NOTED F - FILL
■
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER REC RQD
Lithology
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01 TO THE HYDROSTRATIGRAPHIC LEGEND FOR MORE DETAILS. AB-35D 0 to 100 0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM°,.°I°,,.» A - ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER 4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED x
TABLE SYMBOLOGY IS PRESENTED BELOW, VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE x M1 - SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
-�- TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED. WELL CASING x x (N-VALUE) MEASURED DURING STANDARD
FOR NEWLY INSTALLED WELLS. x x LITHOLOGY LEGEND
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM x x BLOWS PER FOOT N.E. N<50 BPF)
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
A BOREHOLE. CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE "°°"°"' METADIABASE 171 M2 - SAPROLITE/WEATHERED ROCK WHERE
COMPREHENSIVE SITE ASSESSMENT (AUGUST, 2015) AND APPENDIX A N>50 BPF OR REC <50%
3. STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE OF CSA SUPPLEMENT 2 FOR WELL CONSTRUCTION RECORDS AND WELL SCREEN
PRIMARY SOURCES OF DATA USED IN THE GEOLOGIC BORING LOGS. °°°"°"' META -QUARTZ DIORITE ® TZ - (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
\ \ WHERE RECOVERY >50% AND ROD <50%
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A 6. BEDROCK (BR -DESIGNATED) WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON \ \
°c .»
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING � METAGRANODIORITE BR -SOUND ROCK WHERE REC > 85% AND ROD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A WHERE PERFORMED. GROUT BACKFILL p° �» \ \ >50%
PR0.IFf:T MANAr.FR _
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
DUKE ALLEN STEAM STATION
ENERGY;
GASTON COUNTY NORTH CAROLINA
CROSS SECTION A -A'
0 1/2" 1" FILENAME FIGURE 2B.DWG SHEET CC�
SCALE AS NOTED 3-5.3
IC•
B
A

700
I
■
1
■
1
A'
SOUTH
�700
■
1
DD
n
VA
=) 650
0
L�
W
W
to
L
Z
J
2
0
Q
M 600
500
GWA-23S
POND CELL 4
_Q-------------------_----------------_--__--------0
450 —
5600
REC
Lithology 0 to 100
7a.o (ssa el
x x x x
x x x
x
aau(
33.0 (533.4)
5800 6000 6200 6400
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE 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 FROM
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
A BOREHOLE.
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST, 2015) AND APPENDIX A
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE THE
OF CSA SUPPLEMENT 2 FOR WELL CONSTRUCTION RECORDS AND
PRIMARY SOURCES OF DATA USED IN THE
GEOLOGIC BORING LOGS,
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
6.. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SET WAS NOT PERFORMED AND
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
REC
Lithology 0 to 100
lozo (573.a) -
X X X
X X
X X x
1zo.o (ssoa) X X
X x X
127.0 (3 3)
6600 6800
SECTION
SCALE: HORIZ 1"=200'
VERT 1"=40'
WELL GRAPHIC LEGEND
WELL CASING
WELL SCREEN
GROUT BACKFILI
PROJECT MANAGER -
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, 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 000000000246418
7000 7200 7400
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0to100 0to100
X
xxx
x x
77'
x x
650
600
550
500
- 450
7600
IC
IC
STRATIGRAPHY LEGEND
A —
ASH
■ F —
FILL
A —
ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
LITHOLOGY LEGEND
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
METADIABASE
❑
M2 —
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
N>50 BPF OR REC <50%
META —QUARTZ DIORITE
TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
METAGRANODIORITE
SR —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
GASTON COUNTY NORTH CAROLINA
CROSS SECTION A -A'
0 1/2" 1" FILENAME FIGURE 2C.DWG SHEET SCALE AS NOT 3-5.4

1
B
NORTH
675
G
1
G
1
u
1
1
SOUTH
675
Lithology
12e U (4837)
X X
14 0(451]) X X
14,. (4a8.9) X X
REC
0 to 100
650
600
550
500
RQD
0 to 100
450
0
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
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
TABLE SYMBOLOGY IS PRESENTED BELOW.
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE.
3. STANDARD PENETRATION TESTING (SET), 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 SET WAS NOT PERFORMED AND
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
GWA-6S
GWA-6BR-
GWA-7D GWA-7S
200 400 600
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
TO THE HYDROSTRATIGRAPHIC 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.
REC RQD
Lithology 0 to 100 0 to 100
01 -
x x
=
�x x x 119111 lolls
x >1
x x Ion loss
x x
1000 1200
SECTION P
L'. J R.I Z 1—
VERT 1" 40'
WELL GRAPHIC LEGEND
GWA-7D
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HOREngineering, Inc. ofthe 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 000000000246418
AB-33D� _AR—�
N
1400 1600
Lithology REC
0 to 100
F
— — — — INACTIVE ASH BASIN
600
m
LJ
L_
W
LJ
N C
RQD 550
0 to 100 Id
.....813.3)
X
X
X
Z
J
120 a 15aa.3)
X
X
=
X
X
X
128.01498.3)
Q
500
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0 to 100 0 to 100
µ» x
xxx
xiocu.»
x x
\ \
IIIIIIIIIIIII<
450
1800 2000
2200
2400 2600
STRATIGRAPHY
LEGEND
A —
ASH
■ F —
FILL
A —
ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
LITHOLOGY LEGEND
❑
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
BLOWS PER FOOT (LE. N<50 BPF)
METADIABASE
❑ M2 —
SAPROLITE/WEATHERED ROCK WHERE
N>50 BEE OR REC <50%
META —QUARTZ DIORITE
® TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
F METAGRANQDIORITE
E:] BE —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
DUKE ENERGY CAROLINAS,LLC
DUKE ALLEN STEAM STATION
ENERGY;
GASTON COUNTY NORTH CAROLINA
CROSS SECTION B-B'
0 1/2" 1" FILENAME FIGURE 3A.DWG SHEET SCALE AS NOT 3-5.5

I L 0 4 0 0 1 0
NORTH SOUTH
1120 rW86)
­0 (-6)
I..0 (4a6.6)
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
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
TABLE SYMBOLOGY IS PRESENTED BELOW.
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 UNAVAILABLE DUE TO
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
TJ2600 2800
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
TO THE HYDROSTRATIGRAPHIC 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.
3000 3200 3400
DISTANCE (ft)
SECTION
SCALE: HORIZ 1 "=200' —
VERT 1"=40'
WELL GRAPHIC LEGEND
AB-29D
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, 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 000000000246418
3600 3800
4000 T v
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0 to 100 0 to 100
11111111
IL
STRATIGRAPHY LEGEND
A — ASH
GENERAL
LEGEND
AREA OF 2L
❑ F —
FILL
EXCEEDAES
J
(DASHED
(DWHERE
H
INFERRED)
❑ A
— ALLUVIUM
M1
— SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
LITHOLOGY
LEGEND
❑
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SPT) IS LESS THAN 50
MEfADIABASE
BLOWS PER FOOT (I.E. N<50 BPF)
❑ M2 — SAPROLITE/WEATHERED ROCK WHERE
N>50 BPF OR REC <50%
META —QUARTZ DIORITE
® TZ
— (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
METAGRANODIORITE
❑ BR
— SOUND ROCK WHERE REC > 85% AND RQD
>50%
DUKE ENERGY CAROLINAS,LLC
L DUKE ALLEN STEAM STATION
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION B-B'
0 1/2" 1" FILENAME FIGURE 3B.DWG SHEET SCALE AS NOTED 3-5.6

1 12 13 4 15 16 17 18
NORTH
700
B'
SOUTH
700
650
DISCHARGE CANAL
650
---
GWA-lBR
GWA-1D
-----------
GWA-1S
ACTIVE ASH BASIN
-----------
--------
600
600
s
REC
ROD
J
Lithology
0 to 100
0 to 100
W
70.0 (555.7)
X X
550
—
X X
=-- —
550
e0 n (545.7)
X X
X X
DO
N
X X
W
X X
rK
mop (525.7)
X X
X X
X X
W
W
X X
120.0(505.7)
X X
500
X X
500
L,j
X X
Z
-_ -
--
135.0(490.7)
U
-
Q
450
4000 4200
4400 4600 4800
5000 5200 5400
5600
5800
6000
6200
450
6400
DISTANCE (ft)
STRATIGRAPHY LEGEND
SECTION
SCALE: HORIZ 1 "=200' -
❑
A -ASH
CROSS SECTION NOTES:
VERT 1 "=40'
LITHOLOGY -RECOVERY
REC
(REC)
- ROCK QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL GRAPHIC LEGEND
DESIGNATION
(RQD) CHART WITH DEPTHS NOTED
■
F -FILL
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
Lithology
REC
RQD
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC LEGEND FOR MORE DETAILS.
GWA-1BR
0 to 100
0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
,mp )„,»
❑
A - ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
x
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
x
M1 - SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
—p—
_
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL CASING
o„»fx x
❑
(N-VALUE) MEASURED DURING STANDARD
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
FOR NEWLY INSTALLED WELLS.
x x
LITHOLOGY LEGEND
PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
x x
1P0 ao«»
NONE
■
METADIABASE
❑
BLOWS PER FOOT (I.E. N<50 BPF)
M2 - SAPROLITE/WEATHERED ROCK WHERE
COMPREHENSIVE) AND A
HSU CAONS
\
/
N>50 BPF OR REC <50%
3. STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE
SUPPLEMENT 2S FOR WEILL CONSTRUCTION RECORDSAPPENDIX
WELL SCREEN
PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
GEOLOGIC BORING LOGS.
'°°°"°"» \ / \
\ \
META -QUARTZ DIORITE
®
TZ - (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY > AR AND RQD <50%
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
6. BEDROCK (BR -DESIGNATED) WELLS WERE SCREENED ACROSS
/
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
/
METAGRANODIORITE
❑
BR - SOUND ROCK WHERE REC > 85% AND RQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
�» \ \
>50%
PPn.IFrT MANAr PR
DRAWN BY: L. MCCAUL
DESIGNED BY: -
e 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
DUKE ALLEN STEAM STATION
(-
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION B-B'
0 1/2" 1^ FILENAME FIGURE 3C.DWG SHEET
SCALE AS NOTED 3-5.7
D
c
B
A

I
EST
1
G
1
1
1
G
1
1
EAST
1
U 200 4UU
ROSS SECTION NOTES:
I. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
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 4
TABLE SYMBOLOGY IS PRESENTED BELOW.
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM 5
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 6
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
- GWA-180 - -�
GWA-18S ASH STORAGE AREA
SB-3
STRUCTURAL FILL AB-39D
AS-39S
AB-38D
�7 � AB-385 -
----_ — —
— — — — — — — — — — — — — — — — — — — _ _ _
INACTIVE ASH BASIN =---------_
REC
Lithology 0 to 100
85.0 (563.6)
100.0 (548 6)
REC RQD Lithology
REC RQD
0 to 100 0 to 100
Lithology 0 to 100 0 to 100 78.5(555.9 x X
49.0 (582.3)
x x x
A
X
60.0(571.3) 93.0(5414)
75.5 (555.8)
600 800 100C
DISTANCE (ft)
HYDROSTRATI GRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
TO THE HYDROSTRATIGRAPHIC LEGEND FOR MORE DETAILS.
ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
FOR NEWLY INSTALLED WELLS.
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.
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.
120" 1400
SECTION \ WELL GRAPHIC LEGEND
SCALE: HORIZ 1"=200' AB-38D
VERT 1"=40'
WELL CASING
WELL SCREEN
GROUT BACKFILL
PROJECT MANAGER C.HEARN,PE
DRAWN BY: L.MCCAUL
DESIGNED BY: -
HDREngineenng,Inc.oftheCamlinas 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 000000000246418
600
1800 2000
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0 to 100 0 to 100
X
x
x X
X X
,worms x
\ \
\f\
,tee esz.a \ \
650
600
m
r7
w
fr
0
0
W
550
L
Z
H
i
500
■m
IC
EM
STRATIGRAPHY LEGEND
A —
ASH
450
2200 2400
■ F —
FILL
El A —
ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
LITHOLOGY LEGEND
❑
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
METADIABASE
❑ M2 —
BLOWS PER FOOT (LE. 11<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
N>50 BEE OR REC <50%
META —QUARTZ DIORITE
TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
METAGRANODIORITE
El BR —
SOUND ROCK WHERE REC > 85% AND RQD
>50%
DUKE ENERGY CAROLINAS,LLC
jam, DUKE ALLEN STEAM STATION
-
�, ENERGY;
GASTON COUNTY NORTH CAROLINA
CROSS SECTION C-C'
FILENAME FIGURE 4A.DWG SHEET ff��
SCALE AS NOTED 3-5•8

I L 3 4 J O 1 8
WEST C
EAST
Q
f
DISTANCE
(ft)
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL GRAPHIC LEGEND
SECTION
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
/ \
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
SCALE: HORIZ AB-33D
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
VERT 1"=40'�
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE DETERMINED DUE
—�_—
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL C-:SING
FOR NEWLY INSTALLED WELLS.
2. RECOVERY (REC) AND. ROCK QUALITY DESIGNATION (ROD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
A BOREHOLE.
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
ASSESSMENTAND A A
COMPREHENSIVECSA )RECORDSP
3. STANDARD PENETRATION TESTING (OPT), REG AND ROD WERE THE
OF SUPPLE EINT 2 FOR WELL CONSTRUCTION ON ANDIX
WELL SCREEN
PRIMARY SOURCES OF DATA USED IN THE
GEOLOGIC BORING LOGS,
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
6.. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SET WAS NOT PERFORMED AND
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
PROJECT MANAGER
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, 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 000000000246418
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0to100 0to100
650
600
550
500
450
400
00
GENERAL LEGEND
pAREA OF 21
EXCEEDANCES
(DASHED WHERE
INFERRED)
IC
CATAWBA RIVER
EL 565.5'
LITHOLOGY LEGEND
MMETADIABASE
19 META —QUARTZ DIORITE
METAGRANODIORITE
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
i
GASTON COUNTY NORTH CAROLINA
IC
le
STRATIGRAPHY LEGEND
A — ASH
■ F — FILL
F7A — ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
M2 —
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
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%
CROSS SECTION C-C'
0 1/2" 1" FILENAME FIGURE 4B.DWG SHEET SCALE AS NOTED 3-5.9

1 2 13 14 15 6 17 18
D
WEST
EAST
700
WA- 19D
700
r-GWA- 19S
- -
REC RQD
--
Lithology
GWA-16S
0 to 100 0 to 100
GWA-1 6 D��
9z.o (saz.o)
650
100.o (5N 0)
X X X
10].0151].0)
650
AB-37D
AB-36S
AB-37S
AB-36D
-----
-___
600
_ -
600
M
REC
Lithology 0 to 100
130.0 (550.3) X
\
i
Q
X X
X X
135.0 (5362)
I
w
REC
RQD
UW
'
550
REC
Lithology
0 to 100
0 to 100
-'
Lithology
0 to 100
fi)
\
z
8S0 (551
59.0 (5859)
J
100.o (55ae) x X X
x X X
--
X X
X X X
r
X X X
X X X
Q
X X
]4.01550.9)
X X X
115.0 (542.8)
500
500
0 200 400
600 800 1000 1200
'.400
1600
1800
2000 220C
1400
2600
280C 3000
DISTANCE (ft)
SECTION
%
STRATIGRAPHY
LEGEND
SCALE: HORIZ 1 "=200'
VERT 1"=40'
A -
ASH
CROSS SECTION NOTES:
LITHOLOGY -
RECOVERY (REC) - ROCK QUALITY
1.
GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL
GRAPHIC LEGEND
DESIGNATION
(RQD) CHART WITH DEPTHS NOTED
F -
■
FILL
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
Lithology
REC RQD
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
GWA-16D
0 to 100 0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM%.o„„�
❑ A -
ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
IX
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
x
M1 -
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
-V_-
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL CASING
x x
❑
(N-VALUE) MEASURED DURING STANDARD
2.
RECOVERY (REC) AND. ROCK QUALITY DESIGNATION (ROD) ARE
FOR NEWLY INSTALLED WELLS.
X x
LITHOLOGY LEGEND
PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
x x
w° Sw _
- -
METADIABASE
❑ M2 -
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
ASSESSMENTAND A A
)RECORDSP
\ \
N>50 BPF OR REC <50%
3.
STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE
OFMENSIVE CSA EINT 2 FOR WELL CONSTRUCTION ON ANDIX
WELL SCREEN
/
PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
GEOLOGIC BORING LOGS.
7
META -QUARTZ DIORITE
TZ -
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
A
WHERE RECOVERY >50% AND RQD <50%
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
/
ED) TED WELLS RE SCREENED
6.BEDROCK (BR -DESIGNAT)ELLWEEACROSSV
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
\ \
�
METAGRANODIORITE
BR -SOUND
ROCK WHERE REC > 85% AND ftQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
9z0 , \ \
>50%
PPn.lPr.T MANAr:PP
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, Inc. ofthe 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
I
GASTON COUNTY NORTH CAROLINA
CROSS SECTION D-D'
0 1/2" 1" FILENAME FIGURE 5A.DWG SHEET
SCALE AS NOTED 3-5.10
IC
L
B
A

1 12 13 4 15 6 17 18
WEST EAST
700 700
AB-35BR
AB-350
AB-35S
SB-6
STRUCTURAL FILL
650
650
ASH STORAGE AREA
_ RAB ASH LANDFILL = AB-31D
SB-1
AB-31S
-----------------
RIVER
V EL 565.5'
600
—
600
GWA-4D
AI GNA-4S
Ld
AREA OF 2L — _
D
EXCEEDANCES
\7,7
z CD
OF BORON
o L,
a
_
w W
J W
w !n
55o
LJ
REC ROD
0
Lithology 0 to 100 0 to 100
a
1300 1497 41
X X
X X
,4o_a 14E>a) X X
145.fi 148241
REC ROD
s _
Lithology
Soo
0 to 100 0 to 100
\
sao
1455(5, 2)
REC ROD
x x Lithology
x x 0 to 100 0 to 100
X X fiS (504 O)
80.0 (5005) ,x X X
X X
X X
X X X
X X
99.3 (d81 2)
450
450
3000 3200 3400 3600 3800 4000 420^ 4400 4600 4800 5000 5200 5400 5600 5800 6000
DISTANCE (ft)
SECTION
STRATIGRAPHY LEGEND
SCALE: HORIZ 1 "=200'
VERT 1-40'
A — ASH
GENERAL LEGEND
CROSS SECTION NOTES: LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2, HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE WELL GRAPHIC LEGEND DESIGNATION (ROD) CHART WITH DEPTHS NOTED r/77 AREA OF 2L F — FILL
EXCEEDANCES ■
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER REC RQD
Lithology (DASHED WHERE
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01 TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS. AB-35D 0 to 100 0 to 100 INFERRED A —ALLUVIUM
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM ) El
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER 4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED X
TABLE SYMBOLOGY IS PRESENTED BELOW. VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE x SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
M1 —
—�_— TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED WELL CASING x x
MEASURED DURING STANDARD
El
FOR NEWLY INSTALLED WELLS. LITHOLOGY LEGEND
°- RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE x x PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM x x BLOWS PER FOOT (I.E. N<50 BPF)
A BOREHOLE. 5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL w° Sw _
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX IT OF THE - - METADIABASE ❑ M2 — SAPROLITE/WEATHERED ROCK WHERE
\ / \ N>50 BPF OR REC <50%
AND A A
HSUPPLE )RECORDSP
ANDIX
3 STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE OFMENSIVE CSA EINT 2SSESSMENT FOR WELL CONSTRUCTION ON WELL SCREEN
PRIMARY SOURCES OF DATA USED IN THE GEOLOGIC BORING LOGS.
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO Y META —QUARTZ DIORITE ® TZ — (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
\ \ WHERE RECOVERY >50% AND RQD <50%
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A ( )
6. BEDROCK BR —DESIGNATED WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING Y METAGRANODIORITE BR — SOUND ROCK WHERE REC > 85% AND RQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A WHERE PERFORMED. GROUT BACKFILL \ \ >50%
PPn.IFr.T MANAf;FP
DRAWN BY: L. MCCAUL
DESIGNED BY: HER Engineering, Engineering, Inc. ofthe Carolinas
CHECKED BY:
N.C.B.E.L.S. License Number: F-0116 APPROVED BY: -
440 S. Church Street, Suite 900
Charlotte. INC 28202-2075
704.338.6700
ISSUE DATE DESCRIPTION PROJECT NUMBER 000000000246418
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
Ili i
e.i
GASTON COUNTY NORTH CAROLINA
CROSS SECTION D-D'
0 1/2" 1"
FILENAME FIGURE 5B.DWG SHEET
SCALE AS NOTED 3-5.11
IC
IC
B
A

1 12 13 14 15 16 17 18
GWA-21 BR
E WA-21D
WEST GWA-21S
EAST
- _
AB-24D
- -- -
AB-13D
AB-24SL
AB-13S
AB-24S
650
v---------------
650
PRIMARY POND 1
PRIMARY POND 2
—
— — — — -
- — — — — — —
-----------------------
Q--_—_---------- — — — —
— — — — — — — — — _---------_--------------_—�
600
600
m
to
W
U_'
LI-
LIJ
LIJ
N
550
550
LIJ
-
Z
J
z
2
o
V
REC
RQD
Lithology
w
0 to 100
0 to 100
x x x
REC
x x
Lithology
x x x
500
0 to 100
120,0(WSs0)
500
(485.1
X X X
12].0 (513.1)
X
200.0(472.,) X X
X
X X
X
220.0(4 1) x V
X
450
X X
450
23]oi43s.1
0 200
400 600 800
1000 1200 1400
1600 1800
2000
2200
2400 2600
DISTANCE (ft)
SECTION %E1
STRATICRAPHY LEGEND
-
SCALE: RIZ 1 40
VE
VERT 1"=40'
A -ASH
❑
CROSS SECTION NOTES:
LITHOLOGY -RECOVERY (REC) - ROCK QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL GRAPHIC LEGEND
DESIGNATION (RQD) CHART WITH DEPTHS NOTED
F - FILL
❑
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
REC RQD
Lithology
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC LEGEND FOR MORE DETAILS.
AB-24D
0 to 100 0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
,m.°(„,»
❑ A - ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
x
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
x77
M1 - SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
—�—
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL CASING
cr2*» x x
(N-VALUE) MEASURED DURING STANDARD
2. RECOVERY (REC) AND ROCK QUALITY DESIGNATION (RQD) ARE
FOR NEWLY INSTALLED WELLS.
x x
LITHOLOGY LEGEND
PENETRATION TESTING (SPT) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE.
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
x. x
1p0 ($p1»
MEfADIABASE
BLOWS PER FOOT (I.E. N<50 BPF)
M2 - SAPROLITE/WEATHERED ROCK WHERE
ENSIVE IMENT
SFOR )RECORDSAND PANDIX A
f'
N>50 BPF OR REC <50%
3. STANDARD PENETRATION TESTING (SPT), REC AND RQD WERE THE
2TE
OFFMCSAHSUPPLEMENT WELL CONSTRUCTIONA
WELL SCREEN
PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
GEOLOGIC BORING LOGS.
/
META -QUARTZ DIORITE
® TZ - (TRANSITION ZONE) PARTIALLY WEATHERED ROCK
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
\ \
WHERE RECOVERY >50% AND RQD <50%
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
/
6. BEDROCK (BR -DESIGNATED) WELLS WERE SCREENED ACROSS
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
/ \
METAGRANODIORITE
❑ BR - SOUND ROCK WHERE REC > 85% AND RQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
\
>50%
PPn.lPr.T N1ANAf:FR
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
L DUKE ALLEN STEAM STATION
ENERGY
GASTON COUNTY NORTH CAROLINA
CROSS SECTION E-E'
0 1/2" 1" FILENAME FIGURE 6A.DWG SHEET
SCALE AS NOTED 3-5.12
C
•
B
A

REC
Lithology 0 to 100
106.7 (53I.])
x
X X
ML (.4.4) X X
X X
X X
x x
140.6 (waa) X x
157,7 (486.7)
i
I
ROD
0 to 100
650
600
Q
LO
w
af
U
L�
w
w
(n
550
LEI
Z
J
z 2
o U
� F
> Q
500
450
400
J 4 J O
AB-256R F
B-25BRU
B-25SL AB-26D
AB-25S AB-26PRIMARY POND 2 PRIMARY POND 3 9
2600 2800 3000
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
—�_—
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
FOR NEWLY INSTALLED WELLS.
2. RECOVERY (REC) AND. ROCK QUALITY DESIGNATION (RQD) ARE
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
A BOREHOLE.
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST, 2015) AND APPENDIX A
3. STANDARD PENETRATION TESTING (SET), REC AND RQD WERE THE
OF CSA SUPPLEMENT 2 FOR WELL CONSTRUCTION RECORDS AND
PRIMARY SOURCES OF DATA USED IN THE
GEOLOGIC BORING LOGS,
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
6.. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SET WAS NOT PERFORMED AND
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
WHERE REC AND/OR RQD DATA WERE UNAVAILABLE DUE TO
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
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
Lithology REC RQD
0 to 100 0 to 100 I
15a.6 Islas)
u6.0 (was)
166.0 peas)
1800(6 5)
PROJECT MANAGER
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
3200 3400 3600
DISTANCE (ft)
SECTION WELL GRAPHIC LEGEND
SCALE: HORIZ 1-200' AB-25BR
VERT 1"=40'
WELL CASING
WELL SCREEN
GROUT BACKFILL
DRAWN BY:
L. MCCAUL
DESIGNED BY:
-
CHECKED BY:
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000246418
3800 4000 4200
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (RQD) CHART WITH DEPTHS NOTED
Lithology REC RQD
0to100 0to100
X
xxx
soo l�.n
x x
x x
6550
600
CATAWBA RIVER
EL 565.5__
550
500
REC
Lithology 0 to 100
14e.o (aa1.7) X
X X
166
0.0 (420]) XX
X X
45X
186.0 (400.7) X X
X
X X
194.8 (386.1)
1
RQD
0 to 100
ID
IC
STRATIGRAPHY LEGEND
A —
ASH
■ F —
FILL
A —
ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
A
LITHOLOGY LEGEND
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
METADIABASE
❑
M2 —
BLOWS PER FOOT (LE. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
N>50 BPF OR REC <50%
META —QUARTZ DIORITE
TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND RQD <50%
METAGRANODIORITE
BR —
SOUND ROCK WHERE REC > 85% AND RQD
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
I
GASTON COUNTY NORTH CAROLINA
CROSS SECTION E-E'
0 1/2" 1" FILENAME FIGURE 613.DWG SHEET
SCALE AS NOT 3-5.13

1 2 13 4 15 6 17 8
700
GWA-24D
WA-24BR
GWA-24S
EST -
EAS
21BR
WA-9D AB-20D
WA-9S
-21D
650
AB-20S
1 SL
B-21S
650
ACTIVE ASH BASIN
�---------------------------
---
JAB-2
- -
- - - - - -
600
600
m
(O
••
W
z
d'
o
J
W
w
REC
w
Lithology
REC
RQD
NG
550
0 to 100
Lithology
0 to 100
0 to 100
x x
°a(52fi.6)
REC
RQD
W
x x
\ \
Lithology
x x
0 to 100
0 to 100
=
x x
F
140.0 (535.6)
x x
(
120.0 (524.71
p f55OS5555
14Q OIS.6i
X X
x x
x x
x x
x x
,fi00(51667 x x
REC
RQD
- 140.0(504.7i
500
Lithology
0 to 100
0 to 100
\ \
500
ifi9.5 (506.1)
]8.0 (Sfifi.4)
60.0 (Sfi4.4)
/
x x
160.0
(484.])
x x x
\ \
1 .0 (544.4)
/
\ \ \
180.0(4647)
\ \ \
\ \
120.0 (524.4)
192.0
(452.7)
450
450
0 200
400 600 800
1000
1200
1400
1600
1800
2000
2200
2400
2600
DISTANCE (ft)
STRATIGRAPHY
LEGEND
SECTION
SCALE: HORIZ 1 -200'
A -
ASH
VERT 1-40'
CROSS SECTION NOTES:
LITHOLOGY -
RECOVERY (REC) - ROCK
QUALITY
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
WELL GRAPHIC LEGEND
DESIGNATION (RQD)
CHART WITH DEPTHS NOTED
F -
■
FILL
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
Lithology
REC RQD
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
GWA-24BR
0 to 100 0 to 100
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM%.4„„)
❑ A -
ALLUVIUM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER 4.
ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
Ix
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, RQD CAN NOT BE DETERMINED DUE
x
M1 -
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS
-V_-
TO THIS DRILLING METHOD AND ARE THEREFORE NOT PRESENTED
WELL CASING
x x
❑
(N-VALUE) MEASURED DURING STANDARD
2. RECOVERY (REC) AND. ROCK QUALITY DESIGNATION (ROD) ARE
FOR NEWLY INSTALLED WELLS.
X x
LITHOLOGY LEGEND
PENETRATION TESTING (SET) IS LESS THAN 50
MEASUREMENTS OF THE QUALITY OF ROCK CORE RECOVERED FROM
A BOREHOLE. 5.
TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX IT THE
x x
w° Sw -
- -
METADIABASE
❑ M2 -
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
COMPREHENSIVEASSESSMENT A
)RECORDSAND P
N>50 BEE OR REC <50%
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE THE
OFMCSA SUPPLEMENT 2 FOR WELL CTE
ONSTRUCTION ON AND
WELL SCREEN
WELL
PRIMARY SOURCES OF DATA USED IN THE
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
GEOLOGIC BORING LOGS.
Y
META -QUARTZ DIORITE TZ -
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
A
WHERE RECOVERY >50% AND RQD <50%
6..
BOREHOLE; IN CASES WHERE SPT WAS NOT PERFORMED AND
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO
/
BEDROCK (BR -DESIGNATED) WEEACROSSV
TED WELLS RE SCREENED
INTERPRETED WATER -BEARING FRACTURE ZONES BASED ON
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
\ \
�
METAGRANODIORITE 1:1BR
-SOUND
ROCK WHERE REC > 85% AND ftQD
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
GROUT BACKFILL
V A
-,'0%
PPn.lPr.T MANAr:PP
DRAWN BY: L. MCCAUL
DESIGNED BY: -
HDREngineering, Inc. ofthe 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 000000000246418
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
I
GASTON COUNTY NORTH CAROLINA
CROSS SECTION F-F
0 1/2" 1. FILENAME FIGURE 7A.DWG SHEET
SCALE AS NOTED 3-5.14
IC
C
B
A

L 1 J 1 4 1 a 1 o 1 o
F'
WEST EAST
650
600
a
co
LJ
o
a �
w �-
w LJ
LJ
to
550
LJ
Z
J
U
Q
500
450
2600
2800 3000 3200 3400 3600
DISTANCE (ft)
CROSS SECTION NOTES:
1. GROUND WATER LEVEL MEASUREMENTS WERE TAKEN ON MAY 2,
HYDROSTRATIGRAPHIC LAYER BASED ON A REVIEW OF THE BOREHOLE
2016. DEPTH TO WATER WAS MEASURED WITH AN ELECTRIC PROBE
LOG, FIELD PHOTOGRAPHS, AND GEOLOGIC JUDGMENT. PLEASE REFER
FROM BELOW TOP OF CASING AND WAS RECORDED WITHIN 0.01
TO THE HYDROSTRATIGRAPHIC. LEGEND FOR MORE DETAILS.
FEET. WATER LEVELS PRESENTED ON CROSS SECTIONS ARE FROM
SHALLOW WELLS ONLY AND REPRESENT THE WATER TABLE. WATER
4. ADDITIONAL CSA GROUNDWATER MONITORING WELLS WERE INSTALLED
TABLE SYMBOLOGY IS PRESENTED BELOW.
VIA SONIC DRILLING; AS SUCH, ROD CAN NOT BE 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 FROM
5. TOP OF CASING IS NOT PRESENTED HEREIN FOR WELL
A BOREHOLE.
CONSTRUCTION GRAPHICS. PLEASE SEE APPENDIX H OF THE
COMPREHENSIVE SITE ASSESSMENT (AUGUST, 2015) AND APPENDIX A
3. STANDARD PENETRATION TESTING (SPT), REC AND ROD WERE THE
OF CSA SUPPLEMENT 2 FOR WELL CONSTRUCTION RECORDS AND
PRIMARY SOURCES OF DATA USED IN THE
GEOLOGIC BORING LOGS,
DETERMINATION/ASSIGNMENT OF HYDROSTRATIGRAPHIC LAYERS TO
NATURAL MATERIALS (ALLUVIUM, SOIL, SAPROLITE, AND ROCK) IN A
6.. BEDROCK (BR —DESIGNATED) WELLS WERE SCREENED ACROSS
BOREHOLE; IN CASES WHERE SET WAS NOT PERFORMED AND
INTERPRETED WATER —BEARING FRACTURE ZONES BASED ON
WHERE REC AND/OR ROD DATA WERE UNAVAILABLE DUE TO
EXAMINATION OF THE ROCK CORE AND ROCK PACKER TESTING
DRILLING METHOD, THE NATURAL MATERIALS WERE ASSIGNED TO A
WHERE PERFORMED.
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
PROJECT MANAGER
3800 4000 4200
SECTION
SCALE: HORIZ 1"=200'
VERT 1"=40'
WELL GRAPHIC LEGEND
AB-22D
WELL CASING
WELL SCREEN
GROUT BACKFILL
DRAWN BY:
L. MCCAUL
DESIGNED BY:
-
CHECKED BY:
APPROVED BY:
-
ISSUE DATE DESCRIPTION
PROJECT NUMBER
000000000246418
4400 4600
LITHOLOGY — RECOVERY (REC) — ROCK QUALITY
DESIGNATION (ROD) CHART WITH DEPTHS NOTED
Lithology REC ROD
0to100 0to100
X
xxx
soo �.n
x x
x x
4800
LITHOLOGY LEGEND
METADIABASE
META —QUARTZ DIORITE
METAGRANODIORITE
DUKE ENERGY CAROLINAS,LLC
ALLEN STEAM STATION
i
GASTON COUNTY NORTH CAROLINA
■C
mire
I♦I[
STRATIGRAPHY LEGEND
A — ASH
■ F — FILL
F7A — ALLUVIUM
M1 —
SOIL/SAPROLITE WHERE FIELD BLOWCOUNTS A
(N—VALUE) MEASURED DURING STANDARD
PENETRATION TESTING (SET) IS LESS THAN 50
Ll M2 —
BLOWS PER FOOT (I.E. N<50 BPF)
SAPROLITE/WEATHERED ROCK WHERE
N>50 BEE OR REC <50%
® TZ —
(TRANSITION ZONE) PARTIALLY WEATHERED ROCK
WHERE RECOVERY >50% AND ROD <50%
❑ SR —
SOUND ROCK WHERE REC > 85% AND ROD
>50%
CROSS SECTION F-F
0 1/2" 1" FILENAME FIGURE 713.11WG SHEET
SCALE AS NOT 3.5-1 5

00
U Background Wells
Porewater
`3x ❑ Area of Wetness
0o w
10 Surface Water
p0
ryo
L1
100 D 100
BG3D
O
80 ti UOM a 80
r s7
OC.-
/cL2PO �x �J Q NG
oc� 60 o Mx�ANTp001 60 y1
111s. GO A�zfsT m
40 P rn 40
-
.i2� �_ L s-5
00 O A S
20 sw-s 20
0 � SO �/ S-g
AB 29SL )
2
30S O O <� � R-ijG-21g
�00 00 AB-25SL 00 D0 a0 0 B 3 ry0 �O 00 00
Calcium Chloride+Nitrogen, NO2 plus NO3
CATIONS ANIONS
0
00
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,
F)ll POREWATER, AREAS OF WETNESS, AND SURFACE WATER AUGUST 2016
DUKE ENERGY CAROLINAS, LLC
ALLEN STEAM STATION ASH BASIN 3-6.1
FIGURE
GASTON COUNTY, NORTH CAROLINA

10
w
00
Shallow Wells
�o
Porewater
C'
Area of Wetness
-0S 3k
�o w Surface Water
ems.
-26
5
GWA-7S yo
ryo
0
Calcium
CATIONS
k.nioriae+nmrogen, rvuz pws rvua
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
ALLEN STEAM STATION ASH BASIN 3-6.2
GASTON COUNTY. NORTH CAROLINA

00
r.]
Io
Deep Wells
Porewater
Area of Wetness
Surface Water
NO
0
100
�oM a 80
s -
\c
m
OMx� _ 60 N�'1
w
m
CJ _ AB-2 L
C - _
P 40
s-5
AB 4
20
00 00 1 D ao
AB- 5D
VVP 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
DUKE ENERGY CAROLINAS, LLC FIGURE
ALLEN STEAM STATION ASH BASIN 3-6.3
GASTON COUNTY. NORTH CAROLINA

00
Bedrock Wells
tiq,
0
D Porewater
Area of Wetness
h d�,
Surface Water
�ry k
00 row d
q, O�
o G�
-35
Oaf _ �O \AR �5G p0
Ur 1
- y
c0 -3 ry0
0
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
ALLEN STEAM STATION ASH BASIN 3-6.4
GASTON COUNTY. NORTH CAROLINA