NC0038377_Mayo Figures_20160701

1Z
7, .w
vq,
—%L4 N,•
g.
Ja
g
T
7
:.IV �,F
HALIFAX'GQ (VA)
t
� Ui
EkSCIN&
t !t
J
mor -17
vN
'14
ACTIVE
ASH BASIN
981
W7 R,
LEGEND
� W-'z 0
411.
NOTES:
4L
GRAPHIC SCALE
600 300 0 600 1,200 FIGURE ES-1
IN FEET SITE CONCEPTUAL MODEL - PLAN VIEW
Q°a s°yr'
148 RIVER STREET, SUITE 220 GENERALIZED EXTENT OF BORON ABOVE NC21—
GREENVILLE, SOUTH CAROLINA 29601
x �Q O Q QO
PHONE [phone] MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA
t5t'r DRAWN fttm DATE: 07/06/2016
Terra PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

SOUTHWEST
R�Ty
ASH
AREA OF BORON CONCENTRATIONS
IN GROUNDWATER ABOVE 2L
LEGEND
Q ASH
Q ASH PORE WATER
GROUNDWATER ABOVE INC 2L STANDARD
FOR BORON
GROUNDWATER BELOW NC 2L STANDARD
FOR BORON
INFERRED OR MEASURED
APPROXIMATE WATER TABLE
INFERRED OR MEASURED APPROXIMATE ASH
PORE WATER TABLE
LITHOLOGIC CONTACT
ACTIVE ASH BASIN
ASH PORE WATER
I vil
synTerra
ASH BASIN DAM
CRUTCHFIELD BRANCH
REGOL/7-H
NOT TO SCALE
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
DRAWN BY: JOHN CHASTAIN DATE: 06/14/2016
PROJECT MANAGER: JERRY WYLIE
LAYOUT: FIG ES-2
NORTHEAST
CR LVERT ROAD CRUTCHFIELD BRANCH
BEDROCK
FIGURE ES-2
CONCEPTUAL CROSS-SECTION SW -NE
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

A
A'
NORTHWEST
SOUTHEAST
DUKE ENERGY
MAYO STEAM ELECTRIC PLANT PROPERTY
COMPLIANCE BOUNDARY
PROFILE BASED ON HISTORIC
�MW-14BR
r WATER LEVEL USGS TOPOGRAPHIC MAP
= IS 503.88 msl.
WASTE BOUNDARY
-4 1981
ER LEVEL
FWA
MW-9BR
[WATERLEVELPROFILE BASED ON HISTORIC
USGS TOPOGRAPHIC MAP
U
LANDFILLS
468.82 mSl.
34.54msl:;
o
cr
} N L
a
0 01
p
1 3 1
co V
- REGOLITH \
_
ACTIVE ASH BASIN
-
TD 484'msl. ---------------------------------------------
TOP DAM488'----------- - WE=480'msl-------------------- -
i —
REGOLITH�
TD 466' msl. / —
��TD \ ASH
TD 465' msl.
TD ±455' msl. �
/
TD ? 446' msl. 1 _
�
` � �
\ MAYO LAKE
\ TOP OF DAM 444' msl.
r
GENERALIZED GROUNDWATER
\
\
\
GENERALIZED GROUNDWATER
TD 435' msl.
REGOLITH
WE=433' msl
- �
FLOW DIRECTION
\
ASH /
OCTIONOUNp
� J—
w
49t/a
¢ W
3
\\
FORMER CHANNEL OF
CRUTCHFIELD BRANCH
o BEDROCK o
PROFILE BASED ON HISTORIC \
AREA OF BORON CONCENTRATIONS
USGS TOPOGRAPHIC MAP
IN GROUNDWATER ABOVE 2L
PROFILE BASED ON HISTORIC
BEDROCK
USGS TOPOGRAPHIC MAP
FORMER CHANNEL
OF MAYO CREEK
i
BEDROCK
BEDROCK
LEGEND
0 ASH
Q ASH PORE WATER
GROUNDWATER ABOVE NC 2L STANDARD
FOR BORON
GENERALIZED WATER TABLE
[MY-- 3 NCDEQ WATER SUPPLY WELL
MW-17BR MONITORING WELL
TO 233' msl. TOTAL DEPTH ELEVATION OF WELL
— — — LITHOLOGIC CONTACT
VERTICAL EXAGGERATION 5X
FIGURE ES-3
CONCEPTUAL CROSS-SECTION NW -SE
148
SOURCE INFORMATION:
EXISTING GROUND SURFACE BASED ON A DRAWING PROVIDED BY THE WSP GROUP, TITLED "MAYO PLANT FINAL", DATED MAY 19, 2015.
GREERIVERLE, SOUTH CAR LIN
GRENE86 - SOUTHCAROLINA29601
PHONE [phone]
MAYO STEAM ELECTRIC PLANT
HISTORIC GROUND SURFACE BASED ON THE 7-1/2' USGS TOPOGRAPHIC MAP FOR CLUSTER SPRINGS, VA DATED 1968.
www.synterracorp.com
ROXBORO NORTH CAROLINA
MONITORING WELL DATA WAS OBTAINED FROM THE COMPREHENSIVE SITE ASSESSMENT REPORT PREPAREED BY SYNTERRA, DATED SEPTEMBER
2, 2015.
BY 10 N HASTAI DATE: 06/14/2016
PRIVATE WATER SUPPLY WELL INFORMATION WAS OBTAINED FROM A LIST PROVIDED BY DUKE ENERGY PROGRESS
synTer
PDRAWN
WYLIE
R LAYOUCT E
MONITORING WELL WATER LEVELS WERE COLLECTED BY SYNTERRA ON DECEMBER 15, 2015.
0,01/2016 5:11 PM P:\Duke energy Progress.1026\105. Mayo
Ash Basin Gw Assessment Pian`r19.EG_CSASUP\FiGUREs\DE MAYO CONCEPTUAL x-SECTIONS NW-SE.dwg

a
J�
0
0
E
/ A Y 0 L AKE I
I
p� 501
o / 7
h r
Baptist Church Cem
ASH BASIN
lCI - ,. r av_ ytgSS Rp U U
II- ,-500 -
SOURCE
USGS TOPOGRAPHIC MAP OBTAINED FROM THE USGS MAP STORE AT
http://store.usgs.gov/b2c_usgs/b2c/start/% %%28xcm=r3standardpitrex_prtl % %%29/.do
MAYO STEAM ELECTRIC PLANT
PERSON COUNTY
GREENSBORO
•RALEIGH
Terra GREENVII
,I � .CMAFLOTTE
• FAYETTEVILLEI,
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA
PHONE [phone]
www.synterracorp.com
07/05/2016 10:08 AM P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\19.EG_CSA
O
D
Mayo
Reservoir
PROPERTY BOUNDARY
POWER PLANT
Mayo
( R Reservoir
�I A
�' 1 "_
c
J
i Gl;
A Mayo
Reservoir
2SE
50 - 14Z� _
`450J—
FIGURE 1-1
SITE LOCATION MAP
DUKE ENERGY PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
CLUSTER SPRINGS, NC QUADRANGLE
DRAWN BY: J. CHASTAIN DATe02/20/2016 GRAPHIC SCALE
PROJECT MANAGER: JERRY WYLIE CONTOUR INTERVAL: 10ft 1000 0 1000 2000
LAYOUT: FIG 1-1 (USGS TOPO MAP) MAP DATE: 2013 IN FEET
i\MAYO FIG 1-1 (SITE LOCATION MAP)Ad g

F q
it d R rG
r3+ F
rs?
a
^r
,
e"1 fig.
_ 5
r.
R
F .
9 �
v
i' .J._:� � '{ � .£.t✓<C•.,� �:34'•'�F�,�iY ,-! '+':h i:�� �' ar.,a'h.ia t;r. ..dr�tid.�d _,s, .5+- .7 -
f. 1 J S
i rt
r
4 a
: :. .' , ., .. ,d, T.•.:. is Y i ... -e .a.. .. fi .i.. �Lr �. .. a.' ;u,✓i.� �' "�_
L•dyt ,^•�
x
Al
1
id2 a . .,..,,,t {�...r'. .• Ana..•.,_ e.. .:;: �> ,r.
•
1 �,a.'^.a,�R�:.md•L5-e...=y� fr{ }"=rr Y";re'� .A' n�gf'c�. �. 6,s�'F ry�&y �. �.ti _ .. �a�{I�i4 a° :.
, r W i
`w}�� :wd Ja'. �r .� ,y�"�r�_ ^7�'rr• ! apn� ,: .♦ ,N 3' ���r'�f
,
•tea. ,...�,, �� rk ��kg r.
,
,. - w,r� .° h,:- yi'E Y`T"• � b2 rf0.ii
" 4
,
.+ F
a .
l
e
.4
..
f b f V11
2014
;& ti
DIRM
PLAN
GRAPHIC SCALE
t m .
•_.'
} .e '71
- IN FEET
r.
148 RIVER STREET, SUITE 220
PHONE [phone]
DRAWN BY: A. ROBINSON DATE: 07/01/2016
_
r
. CHECKED ..
NOVAN
PROJECT MANAGER: J. WYLIE
im on5 .55

-
I —atom
�\\\
AR
iK
J J
_ � _ )I � -- __\ ,.�� �J�)Ji��, ���.�,��a��„�////lri �-= �✓1� �//�/�i,',i,i�lIliI�B11111�� %i --\ � \ 1 IIJJIIII �\Ili \ _.-, �l 1���
,
�
�\ ll --��/ / \ _. � - � \ \\\\\\1\I�— J➢� 1 �i � � �� ' � � \�� �` J /���� � == — � ill \�
�\
•. �����\��_=� �`< �\I � �) \l �\ 1\ �\�\ �\\�11 /,� ,\\� / � )IIIII 1 � � \ I i �C � •_ , ® _ I �l �
1 ` -VIM
11)/
� ���, �,� ._ 1 � `�\�� � \' \ \ ✓ // � IIII `� IIII /// / � � \ \ � �— �- %� / J))) �y \ . ,,/� � � II / ///// i/���llll r
��
\ ` \ �r�
IIII 'C It,\ 1
� (
��\\\(IIIII\\\� � --\\���lJl (`,� ���� I i_� `��� — r, \—°�� ����--�=J_ � \� � r/ � \� \ (►l
�,A ✓/� = � — �1-- v \ s �-- �%l //� AV�� A(l/, y ,- y�� v� y� �,�� A 1 `' �\\ 11 �.��.. ���I A)I 41
11l \ i/�J \ • \ \ \ - JJ ((�• ) I I I (�
zll((I /j /// ��\11�\ \II\I(`.--_��\� ��i� ���%'%�^ 'VI � �� ��� � � �_ � - � �� / (( �� �✓ ,� � = , � 1,= \�1\�,- r � 1
.w
L:
's Qv�l
� }` lllll /i o��® • :: J� )�1� �� �/�� �. � }� �\1
l(�/
• I�� � �\\ \\ =� \ 1 h � � J// r/ ,, �\ )� /�'//� ///jar /7 � A.
,^
^
L ` ��� lc"�\ 1 � \� /� C \�_ — � \ -) � � /� �/ / � `���� ) �1 � Ste\ �' - - • °° �-� \\
10
IIII
41
WA
J
im
J
".
-31
MA YO LAKE
F_-1
I.

. : t:..: _ .,:_+..
.>., ..- hi.
�e
1 : '� }, ,. ..: ">
�
:,A ,.:
'a4 :'
r,,,,[pp...: . a, �. , :. ,. .
w
.: .. . , .. .c. -:,.:. ,•,.. r .�+ �,....� � aC A/" _ •'�
, •�" M- .- TSti', YlT. as _ �
.•7,
:.. r:, •Jpj� :2' s. .. �s.,� +, . a � -i
F' V
t�.
e
M1' }
.7.: Y �,: '�.�sJ+.ti
1>', Y.
1}j-' X:.;,�c _.. .. ... is .: -� ,. 4 :..
.U,..�-. ,:. ( e.. ti, 34'F , .. ,.
,!-.+YJ.°6,. j( Yk n :. T; p5_ 'rA '. ♦ ,.. d.
'u
.. . .: .. -• _ I, ,./ , ,. ..:.. Y /.� .,J �' N:
, .:... -•.,. rt M1Sy p.; ,. .:. ,. :1, :. � +.Y -•1 4 i� t --;i� i� � '1
"T c � :. r x _. � ,}.}J.�, h •h .. in. 5 ,,{; t . -. .. f` 4, s�. a l:, f+ •;9n ( -
+ a
r,. .. .. 3,,. , yi.,. a.-
a
x•.. �
.. n .. °h.{� ]. 9. ,.
i� 7
/, t Vf
is ... e , } ,. ,.. ,.
. r
r • ,
r
t v a
.. Y.' Ve t„'Ld. i
, i
♦.. "- R.
-
yc♦ �
•4 .FK +i .d, �' �q�a.
_
�. 5 y .., 'S y � 'l,o: �' e �.. ' ' ♦ � 4 inT •.1a '. '., , :: nr• r
-♦ { S lli
�t$ r" � r � ��.
�♦ �.^� 1��
�
',{:: t
...;-. f,,i�.ay- •.•!. �� r•A&,-
u: ti }
� • - K
.: (.L., Q.. (.lt ti
'! -`: it _ . • 1 t s . ., ,' ; c. v rs'•a. +'+. e �N`; . � 'rf .
�YY T 8'A ' •. _'ay f , d: y'
� r' :+. -. L;, �. t
!�a'- �4. -
s.a. ::�r1k,- . y'', 'ro .i.•
\,�. ,.f 1 . ,s .
G ti: C
+'
.: .-
•.� - n _ ., .4.1. a ��n
�;:ar�
X'CO HALIFA(VA �.` r :
1. )'
,.� z- ae •a
�y� :.4p
.O
,
. 4o-
r y$L
r�*•i
• a ,
"
ASH BASIN
a k
� � �•, i }. � - '�,
1.
01
T
LAKE
O p
LEGEND
- O
O WATER SUPPLY WELL SAMPLED BY NCDEQ
O WATER SUPPLY WELL NOT SAMPLED
r g q• r .
`` O
�� GENERALIZED GROUNDWATER FLOW DIRECTION
ASH BASIN
COMPLIANCE BOUNDARY
HALF -MILE OFFSET FROM COMPLIANCE BOUNDARY
DUKE ENERGY PROGRESS MAYO PLANT SITE BOUNDARY
Analytical Parameter pH Temperature
Specific Dissolved Bicarbonate Carbonate Chromium
Conductance oxygen Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Alkalinity Boron Cadmium Calcium Alkalinity Chloride (He xavalent) Chromium Cobalt Copper Iron
Total Total
Lead Magnesium Manganese Mercury Molybdenum Nickel Potassium Selenium Sodium Strontium Sulfate Thallium Dissolved Suspended Vanadium Zinc
Solids Solids
Reporting Units SU Deg C
umhos/cm mg/I NTUs
mg/I ug/I
ug/I ug/I ug/I ug/I
mg/I ug/I ug/I mg/I mg/I mg/I
ug/I
ug/I ug/I ug/I ug/I
ug/I mg/I ug/I ug/I ug/I
ug/I mg/I
ug/I
mg/I
ug/I
mg/1
ug/I
mg/I
mg/I
ug/I
ug/I
ISA NCAC 02L Standard 6.5-8.5 NE
NE NE NE
NE NE
1* SO 700 4*
NE 700 2 NE NE 250
0.07^
SO 1* S000 300
15 NE 50 1 Ni
S00 NE
20
NE
Ni
250
0.2*
500
NE
0.3*
5000
Sample ID
Sample
Collection Field Parameters
Date
Analytical Results
MY-3
03/10/2015 5.7
1 16
1 399
1 9.24
29.7 1
28.5
1 3480
<3
1 <10
70.2
1 <1
1 28.5
1 <100
I <1
1 22.5
1 <1
37.5
<20
<10
<5
51
1750
21.6
2.95
20.9
<0.2
<10
<10
1.13
<10
30.7
436
60
<1
293
13.4
3.03
12.4
MY-3
08/19/2015 5.6
18
261
5.48
<1
26.9
<1O
10.5
<0.5
60.4
<0.2
26.9
<5
<0.08
22
<5
32.2
0.13
0.6
<0.5
132
<50
5.9
2.64
8
<0.2
<0.5
1.2
1.16
1.3
30.7
391
55.6
<0.1
226
<2.5
<1
31.1
MY-5
05/04/2015 7.1
16
572
1.8
1.5
15
430
<5
<5
54.5
<2
<5
150
<0.8
84.8
<5
39.7
<0.03
<5
<5
41.9
953
2.7
4.83
517
<0.2
<5
<5
8.35
<5
<0.5
621
5.7
<1
349
<5
<10
<50
MY-7
09/01/2015 6.1
18
85
7.07
<1
37
<10
<0.5
<0.5
30
<0.2
37
<5
<0.08
7.49
<5
5.5
0.63
0.86
<0.5
67.8
<50
1.8
2.41
0.78
<0.2
3.8
1.5
1.4
<0.5
9.66
106
2.7
<0A
88
<2.5 2.5
36.4
Notes:
500 250 o RAPHIICGSCALE 00 1,50o
FIGURE 1-4
- Bold highlighted concentration indicates (IMAC )f he the 15A NCAC 02L Standard, Appendix p April 1,13.
*-Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC D2L Standard, Appendix 1, April, 1, 2013.
SU = Standard Units
umhos/cm =micro mhos per centimeter
IN FEET
N C D E Q SAMPLED WATER S U P P LY WELL
< = concentration not detected at or above the reporting limit.
^ = 1M Screening Levei.
NC DHHS Hea
NTU = Nephelometric Turbidity Unit
mg/L = milligrams per liter
LOCATIONS AND DATA
148 RIVER STREET, SUITE 220
NE = Not established
ug/1 = microgram per liter
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
MAYO STEAM ELECTRIC PLANT
Deg C=Degrees Celsius
RCSGE SPATIAAPHVOBTAINED
FRO USDA ATEWA
FROM USDA NRCS GEOSPATIAL DATA GATEWAY(https://gdg.scegov.usda.gov/GDGOrdecaspx).
;
ROXBORO , NORTH CAROLINA
DRAWN BY: A. ROBINSON DATE: 07/01/2016
DRAWING HAS BEEN SET WITH A PROJECTION
OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200
(NAD 83/2011).
���\)\�////����/��Terra
I
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE
PADuke Energy Pro mss.1026\00 GIS BASE DATA\Ma o\Ma
Docs\CSA Su lement\Mao NCDEO Water Supply Ma .mxd

— HALIFAX COUNTY
PERSON COUNTY
rl-
, 53
/ MW
\X-l'
ROAD TO MpNpFILL t-;4
`yam
I '
BG 2 r
1o.7a 0
y
/ O
MW-176R m
490.66
' \ Ydl
O
1 M
1 LOUISIANA PACIFIC CORPORATION
SOURCES:
APRIL 17, 2014 AERIAL PHOTOGRAPHY WAS OBTAINED WSP GROUP, CARY, NORTH CAROLINA
MARCH 23, 2013 AERIAL PHOTOGRAPHY WAS OBTAINED FROM INC ONE MAP GEOSPATIAL PORTAL AT
http://data.nconemap.gov/geoportal/catalog/raster/download.page
i
J-
1
1
0 500.09
ELECTRIC PLANT
f i�zi
DEP i
F. . . . . . . . . .
I.
NORTH CAROLINA-VIRGINIA STATE LINE
COUNTY (APPROXIMP E>
COUNTY
rl
UNNAMED BRANCH �
1
'MAYO LPKE RO
L�
synTerra
`
MAYO LAKE
WATER ELEVATION 436'
/
RAW WATER
INTAKE
N/TTRUCTURE
1 AKE
GRAPHIC SCALE
400 0 400 800
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www.synterracorp.com
DRAWN BY: J. CHASTAIN DATE: 06/12/2016
PROJECT MANAGER: JERRY WYLIE
LAYOUT: FIG 1-5 (GEN POTENTIOMETRIC MAP)
minannlRlo-m AM P%n-.r—.n,,o.,,—in?n\l—r
I
LEGEND
MW 6BR ASSESSMENT WELL
450.10 ELEVATION IN FEET (mSI.)
BG 2
BACKGROUND COMPLIANCE WELL
516.78
ELEVATION IN FEET (msl.)
cw s
DOWNGRADIENT COMPLIANCE WELL
448.99
ELEVATION IN FEET (msl.)
Mw 3
MONITORING WELL
377.59
ELEVATION IN FEET (mSI.)
WATER LEVEL CONTOUR IN FEET (msl.)
—
— INFERRED WATER LEVEL CONTOUR (msl.)
f
GROUNDWATER FLOW DIRECTION
DUKE ENERGY PROGRESS PARCEL LINE
500 ft COMPLIANCE BOUNDARY
WASTE BOUNDARY
-------
PARCEL LINE (APPROXIMATE)
WATER LEVELS:
WATER LEVELS WERE COLLECTED BY SYNTERRA ON DECEMBER 3 2015. WATER LEVEL FOR ABMW-02BRL
COLLECTED ON JANUARY 26, 2016.
SOURCES:
JUNE 18, 2014 AERIAL PHOTOGRAPH OBTAINED FROM THE NRCS GEOSPATIAL DATA GATEWAY AT
http://datagateway.nres.usda.gov/
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
SYSTEM RIPS 3200 (NAD 83).
NEW WELLS WERE SURVEYED BY McKIM& CREED AND AMEC FOSTER WHEELR. THE
HORIZONTAL DATUM IS SET TO NAD83 AND THE VERTICAL DATUM IS SET NGVD88.
COMPLIANCE MONITORING WELL LOCATIONS AND WASTE BOUNDARY PROVIDED BY DUKE
-- ENERGY PROGRESS
ADDITIONAL MONITORING WELL AND PIEZOMETER LOCATIONS BASED ON DATA PROVIDED BY PROGRESS
ENERGY.
FIGURE 1-5
GENERALIZED WATER LEVEL MAP
DECEMBER 2015
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

IN
HALIFAX COUNTY T
PERSON COUNTY T
MW-15BR 0
' MAYo LAKE RD
MW-3BR CW3
M\N�1� Ai
• r
``:a/7k ABMW'1
` I1AUL ROAD TO MONOFILL
�G
O 4�9 \
SOURCES:
APRIL 17, 2014 AERIAL PHOTOGRAPHY WAS OBTAINED WSP GROUP, CARY, NORTH CAROLINA
MARCH 23, 2013 AERIAL PHOTOGRAPHY WAS OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL AT
htto://data.nconemaD.aov/aeoPortaI/cataIoVraster/down load.oape
DEP 2
N I
MW-123
MW-12D ®555.23
I
ABMW-2
483.07
ABMW-3S
„ 0
483.12
� ABMW-2BR
O
ABM W-3
48321
ABMW-4BR
ABMW-4D
ABM W-4
485.31
HALIFAX
�-VIRGINIA STATE LINE
'ROXIMAI.)
'MAY- AKE 1-
L
-
CW'-
CW' I 0
LEGEND
�� MW 16S ASSESSMENT WELL
Q MW-10BR
i
- ELECTRIC PLANT
96
Znf
ji DEP 3!4�..e.:� ,.
DEP i �
i
115ynTerra
AkmL
MAYO LAKE
WATER ELEVATION 436'
`
RAW WATER
/
INTAKE
STRUCTURE
GRAPHIC SCALE
400 0 400 800
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www.synterracorp.com
DRAWN BY: J. CHASTAIN DATE: 06/12/2016
PROJECT MANAGER: JERRY WYLIE
LAYOUT: FIG 1-6 (SURFICIAL WL MAP)
0 367.77 ELEVATION IN FEET (msl.)
O FB—G--21
BACKGROUND COMPLIANCE WELL
ELEVATION IN FEET (msl.)
O cw-1D
DOWNGRADIENT COMPLIANCE WELL
ELEVATION IN FEET (msl.)
MW-3
MONITORING WELL
377.59
ELEVATION IN FEET (msl.)
WATER LEVEL CONTOUR IN FEET (msl.)
—
— INFERRED WATER LEVEL CONTOUR (msl.)
f
GROUNDWATER FLOW DIRECTION
DUKE ENERGY PROGRESS PARCEL LINE
500 ft COMPLIANCE BOUNDARY
WASTE BOUNDARY
-------
PARCEL LINE (APPROXIMATE)
WATER LEVELS:
WATER LEVELS WERE COLLECTED BY SYNTERRA ON DECEMBER 3 2015.
SOURCES:
JUNE 18, 2014 AERIAL PHOTOGRAPH OBTAINED FROM THE NRCS GEOSPATIAL DATA GATEWAY AT
hhp://datagateway.nrcs.usda.gov/
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
SYSTEM RIPS 3200 (NAD 83).
NEW WELLS WERE SURVEYED BY McKIM& CREED. THE HORIZONTAL DATUM IS SET TO NAD83
AND THE VERTICAL DATUM IS SET NGVD88.
COMPLIANCE MONITORING WELL LOCATIONS AND WASTE BOUNDARY PROVIDED BY DUKE
ENERGY PROGRESS
ADDITIONAL MONITORING WELL AND PIEZOMETER LOCATIONS BASED ON DATA PROVIDED BY PROGRESS
FIGURE 1-6
SURFICIAL WATER LEVEL MAP
DECEMBER 2015
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

,71FHALIFAX COUNTY — _ • _ _ NORTH CAROLINA-VIRGINIA BTATE LINE
PERSON COUNTY•• , T TTT +�•,— _ -----� HALIFAX COUNTY (APPROXIMATE)
_ � T PERSON COUNTY
"..r /L MAYOgL%K, RD
/i
Y.
MW3BR Q 420.48 367.95
MW-165
MW-14BR
Y x,.... N:Y.• ... .r ` I` UNNAMED BRANCH
ORUTCHFIELD
1 a � CW 5 W iM Lo
P7-t PIA _ BRANCH :-,.1 ERO
MW-"BR ry AYO f
I — po 0 o CW-2D ;� `
P2 P2A MW_3 A'
A?O
? 4j0 460 4S0-, , MW-68 R(1\/
4 ! I
m ACTIVE ASH BASIN P3A P3 `
PT WATER LEVEL 479.8 PaA P4 �.
9�• t MW-8BR � MW-SS ',
s i
�AA�
HAUL W ABMW-1
oADTC MONO1w
FILI 0
r'
1
` c
' MW-11BR 0,
#ULNA PACIFIC CORPORATION
SOURCES:
APRIL 17, 2014 AERIAL PHOTOGRAPHY WAS OBTAINED WSP GROUP, CARY, NORTH CAROLINA
MARCH 23, 2013 AERIAL PHOTOGRAPHY WAS OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL AT
1-LANDFILL
.r PERMIT NO.
Opp
v
mac"*
(/\J
l` _
. _ • .,
� �
ABM W-3S O
c 0Cll1D
`
\I\
ABM W-3 71.83
LEGEND
ABMW-4D ABMW-4BR \
'
4 2.58
ASSESSMET WELL
ELEVATION IN FEET (msl.)
ABM W-4 \
BG 2
510.78
BACKGROUND COMPLIANCE WELL
ELEVATION IN FEET
A&
(msl.)
�-
MAYOLAKE
WATER ELEVATION436'
471.83
FMW-3
DOWNGRADIENT COMPLIANCE WELL
ELEVATION IN FEET (msl.)
MONITORING WELL
40
DEP 2 DEP 3
MW-12D®MW12S'
555.52
ELECTRIC PLANT
SP
DEP i
synTerra
377.59 ELEVATION IN FEET (msl.)
' I RAER WATER LEVEL CONTOUR IN FEET (msl.)
— — INFERRED WATER LEVEL CONTOUR (msl.)
GROUNDWATER FLOW DIRECTION
DUKE ENERGY PROGRESS PARCEL LINE
GRAPHIC SCALE
400 0 400 800
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www.synterracorp.com
DRAWN BY: CHRISTINA NEWELL DATE: 06/12/2016
PROJECT MANAGER: JERRY WYLIE
LAYOUT: FIG 1-7 (TRANS WL MAP)
500 ft COMPLIANCE BOUNDARY
WASTE BOUNDARY
—__—__— PARCEL LINE (APPROXIMATE)
WATER LEVELS:
WATER LEVELS WERE COLLECTED BY SYNTERRA ON DECEMBER 3 2015.
SOURCES:
JUNE 18, 2014 AERIAL PHOTOGRAPH OBTAINED FROM THE NRCS GEOSPATIAL DATA GATEWAY AT
http://d'tagateway. n res.usd a.gGv/
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
SYSTEM FIPS 3200 (NAD 83).
NEW WELLS WERE SURVEYED BY McKIM& CREED. THE HORIZONTAL DATUM IS SET TO NAD83
AND THE VERTICAL DATUM IS SET NGVD88.
COMPLIANCE MONITORING WELL LOCATIONS AND WASTE BOUNDARY PROVIDED BY DUKE
ENERGY PROGRESS
ADDITIONAL MONITORING WELL AND PIEZOMETER LOCATIONS BASED ON DATA PROVIDED BY PROGRESS
ENERGY.
FIGURE 1-7
TRANSITION ZONE WATER LEVEL MAP
DECEMBER 2015
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

W
PERSON
I 406.52
T �- MW.15BR 0
�I CVV-A
_ ©428 OC
AYOLRD
MW-168R
21.10 CW3
$-rA�E
MW-16S
1
11=;UL ROgO
\ LIONOFILL
�a
1
1
1 � I DEP 2 DEP 3
}
# 4 1 �LOU ISIANA PACIFIC CORPORATION a P
.� IANTgCCESS ROAD MWd2D®MW12S'
SOURCES: -
APRIL 17, 2014 AERIAL PHOTOGRAPHY WAS OBTAINED WSP GROUP, CARY, NORTH CAROLINA T T "'
MARCH 23, 2013 AERIAL PHOTOGRAPHY WAS OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL AT - .. _ / - I
LINE
MW-SBR • MW-SS '
430.93 0
0MW-443.7876R
MW-7D �� .... MW-9ER
468.82
ABMW-2 \
0 ABMW-3S CW-1D `
482.5 28R 0 C v 1 471.60 \I\
9
ABM W-3
LE
ABMW BR -4`-,\ '
48546 / MW-76R ASSESSMENN END
T WELL
ABMW-4D�
iMAYO LAKE
h
` WATER ELEVATION 436'
}r:
RAW WAT
MW-10BR INTAKE
STRUCTU
BRANCH
FIELD
r 376.75 CW 2 �—
I' P20 P2A
MW-6BR
0 0 �� CD
) P 450.10
CDC V v �
7 �D
P3,10 P3 ,'\ t CW6 c
/E ASH BASIN 443 99 I
'R LEVEL 479.8 P4A P4
r/
i! 1
I
I
� , 1
ELECTRIC PLANT
147
synTerra
GRAPHIC SCALE
400 0 400
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www.synterracorp.com
/d
800
DRAWN BY: CHRISTINA NEWELL DATE: 06/12/2016
PROJECT MANAGER: JERRY WYLIE
LAYOUT: FIG 1-8 (BEDROCK WL MAP)
0 443.78 ELEVATION IN FEET (msl.)
BG 1
BACKGROUND COMPLIANCE WELL
509.81
ELEVATION IN FEET (msl.)
cw-6
DOWNGRADIENT COMPLIANCE WELL
448.99
ELEVATION IN FEET (msl.)
FMw-2
MONITORING WELL
434.12
ELEVATION IN FEET (msl.)
WATER LEVEL CONTOUR IN FEET (msl.)
— —
INFERRED WATER LEVEL CONTOUR (msl.)
f
GROUNDWATER FLOW DIRECTION
DUKE ENERGY PROGRESS PARCEL LINE
500 ft COMPLIANCE BOUNDARY
WASTE BOUNDARY
—__—__—
PARCEL LINE (APPROXIMATE)
WATER LEVELS:
WATER LEVELS WERE COLLECTED BY SYNTERRA ON DECEMBER 3 2015.
SOURCES:
JUNE 18, 2014 AERIAL PHOTOGRAPH OBTAINED FROM THE NRCS GEOSPATIAL DATA GATEWAY AT
ittp://datagateway. n res.usd a.gov/
DRAWING HAS BEEN SET WITH
SYSTEM RIPS 3200 (NAD 83).
A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
NEW WELLS WERE SURVEYED BY McKIM& CREED. THE HORIZONTAL DATUM IS SET TO NAD83
AND THE VERTICAL DATUM IS
SET NGVD88.
COMPLIANCE MONITORING WELL LOCATIONS AND WASTE BOUNDARY PROVIDED BY DUKE
=NERGY PROGRESS
ADDITIONAL MONITORING WELL AND PIEZOMETER LOCATIONS BASED ON DATA PROVIDED BY PROGRESS
FIGURE 1-8
BEDROCK WATER LEVEL MAP
DECEMBER 2015
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

g L * {
Ak
Aa
di f
ti
y • .t .wf �' ACTIVE }
ASH BASIN
4 M _ -
ik
.
r
y �
ABMW-2
ABMW-1 394
p =.
498 ', •
LEGEND
0 0
.�, • '� t �c � � � � ABMW-3 ND
79.8
4 i 600
low
i
o . .
ABMW-4
708
0 i ° ' i
lk
NOTES:
o y
,gyp -I A
GRAPHICSCALE FIGURE 1-9
�F 150 75 0 150 soo
f
ISOCONCENTRATION MAP
IN FEET
148 RIVER STREET, SUITE 220 ARSENIC IN ASH PORE WATER
GREENVILLE,SOUTH CARouNA29601 MAYO STEAM ELECTRIC PLANT
PHONE [phone]
r //��/���■�■�.., WRAW n : B.
G ROXBORO, NORTH CAROLINA
_ s r ■ ■ r m DRAWN BY: B. YOUNG DATE: 07/01/2016
s PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

g IL * e {
Ak
Aa
+ -
Ilk
di
ti
y • .t .wf �' ACTIVE }
ASH BASIN
I r * E r401
5 11�
Y ,
Y J
r
I
y 1
4 a bABMW-1
5840
0
LEGEND
-BMW-2 w o g 1
8440 v N
t I w
f� {a ■ f po 0 0 ABMW-3 �, ND
r 3' r6 ji " �o 'o 1800
V / I ifs;
ABMW'4
+F / r 0
' � 5360
y I �iIC
7 iL ■ '
e
f° IIIK , a e' �a r 1 y _ NOTES:
r,
w , • r
� � r
y ■
GRAPHIC SCALE
160 76 0 160 soo FIGURE 1-13
ISOCONCENTRATION MAP
IN FEET
148RIVER STREET, SUITE2 0 BORON IN ASH PORE WATER
GREENVILLE, SOUTH CAROLINA 29601
MAYO STEAM ELECTRIC PLANT
PHONE [phone]
`^na ROXBORO, NORTH CAROLINA
5 C
_ DRAWN BY: B. YOUNG DATE: 07/01/2016
_ PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

g IL * {
e
y ti y-
- ASH BAAt
SINti
rw M
Ilk
y
ABMW-1 ,
M ND
w
c t
�`` �� "Ysw r ABMW-2
A LEGEND
BMW-3 � 1 CHROMIUM (VI) CONCENTRATION (pg/L)
ND NOT DETECTED ABOVE REPORTING LIMIT
CHROMIUM (VI) CONTOUR (Interval N/A)
INFERRED CONTOUR
4 I - MONITORING WELL
r .v* ABNMDW-4 ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
+, �" c •' 4 DUKE ENERGY PROGRESS MAYO PLANT SITE
,� �^ r� �''• "4 i -�-�BOUNDARY
1w) IL
/
fh �• ■ e. " p r
' NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
j •� A . { � '� � ' �' � F ,- � � ,+ -- � EVENT (JANUARY 2016).
THE USEPATAPWATER CONCENTRATION FOR CHROMIUM (VI) IS
0.035 pg/L. (RSL, 2015)
11A t y ! 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
A (https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
16 DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
a�I > STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
y 1
1so ,5 0RAPHICS150E 300 FIGURE 1-17
IN FEET ISOCONCENTRATION MAP
148 RIVER STREET, SUITE 220 CHROMIUM (VI) IN ASH PORE WATER
GREENVILLE,SOUTH CAROLINA 29601 MAYO STEAM ELECTRIC PLANT
H + PHONE[phone]
www. n , or om ROXBORO, NORTH CAROLINA
synTerra DRAWN BY B. YOUNG DATE 07/01/2016
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE
PADuke Ener Pro ress.1026\00 GIB BASE DATA\Ma o\Ma Docs\CSA Su lement\Ma o - Isocon-ntration ..,—A

I
A IV
r
4
e
.. s
ASH BASIN
;
LAN
I
LEGEND
!
MAYO
1 CHROMIUM (VI) CONCENTRATION (pg/L)
LAKE
ND NOT DETECTED ABOVE REPORTING LIMIT
CHROMIUM (VI) CONTOUR (Interval 0.1 pg/L)
ND
— INFERRED CONTOUR
2 MONITORING WELL
ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
-DUKE ENERGY PROGRESS MAYO PLANT SITE
i
�—
'�
- BOUNDARY
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
L.�
EVENT (JANUARY 2016).
THE USEPATAPWATER CONCENTRATION FOR CHROMIUM (VI) IS
0.035 pg/L. (RSL, 2015)
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
- r
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
0
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
GRAPHIC SCALE
500 250 0 500 1,000
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
wWn rrra B Om
DATE 07/01/2016
u"WnTeMANAGER: J. WYLIE
CHECKED BY: J. WYLIE
PADuke Energy Progress, 1026\00 GIB BASE DATA\Ma o\A
FIGURE 1-19
ISOCONCENTRATION MAP
CHROMIUM (VI) IN TRANSITION ZONE
GROUNDWATER
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA
dement\Mayo - Isoconcentration Maps.mxd

A
�a
R ABMW-2BMAYO
�ems,
LAKE
ABMW-2BRLJ� '��.
0052 ABMW-4BT.
e
a w A'
GRAPHIC SCALE
t +4 N'� 500 250 0 500 1,000
t
IN FEET
148 RIVER STREET, SUITE 220
r /. 'i - GREENVILLE, SOUTH CAROLINA 29601
4.4.
� PHONE [phone]
SynTerra —w n , or om
PROJECT
ROJECTM B. YOUNGMANAGER:
DATE: 07/01/2016
PROJECT MAN AG ER: WYLIE
y CHECKED BY: J. WYLIE
.b P:\Duke ----- 0—cress, 1026\00 GIB BASE DATA\Ma o\A
LEGEND
1 CHROMIUM (VI) CONCENTRATION (pg/L)
ND NOT DETECTED ABOVE REPORTING LIMIT
CHROMIUM (VI) CONTOUR
INFERRED CONTOUR
2 MONITORING WELL
WATER SUPPLY WELL
ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
- DUKE ENERGY PROGRESS MAYO PLANT SITE
— -gBOUNDARY
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
EVENT (JANUARY 2016).
THE USEPATAPWATER CONCENTRATION FOR CHROMIUM (VI) IS
0.035 pg/L. (RSL, 2015)
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
WATER SUPPLY WELL SAMPLED BY NCDEQ BETWEEN MAY 2015 AND
SEPTEMBER 2015.
FIGURE 1-20
ISOCONCENTRATION MAP
CHROMIUM (VI) IN BEDROCK GROUNDWATER
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

g IL * e {
Ak
Aa
s r 'IF
-
ti
y • .t .wf log,' 41-9
ACTIVE }
ASH BASIN
4 M _ -
y �
W 4
4 I' ABMW-1
ND
4 t ■
ABmw-2�, � LEGEND
ABMW-3� 1
" µ 1.29
eND
ABMW-4
IN D
Y * r* 0
r
ws L .
i
fV
1w
I �
ae �I R
4
e
i l III , ��,,� ' + `,� � •C¢ ,,� /, �� '� � �",. '
NOTES:
-3 _
y a� Jw
rt
a t="mi 11F I fi
� � r
y ■
� GRAPHIC SCALE
160 76 O 160 300 FIGURE 1-21
ISOCONCENTRATION MAP
IN FEET
.� 148RIVER STREET, SUITE 2 0 CHROMIUM IN ASH PORE WATER
GREENVILLE, SOUTH CAROLINA 29601
MAYO STEAM ELECTRIC PLANT
PHONE [phone]
`^�� ROXBORO, NORTH CAROLINA
5 C
_ DRAWN BY: B. YOUNG DATE: 07/01/2016
_ PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

g L * {
Ak
Aa
'F ,i • �h fly � � ' '�' J .r�� . -�
y • .t- .wf �' ACTIVxj
E }
ASH BASIN-! a49
,
++Is
M
ILIW
I N .
r
I 1I
ABMW-1 i�° ■ . �,�" •
2.0�� Wit!
',`• : ~i LEGEND
Ys +ABMW-2
ABMW-3 � 1
ND
IL
ABMW-4
Ali
i
'� µ "r' ■'t r NOTES:
off
1�
1 �
' t i
GRAPHICSCALE
�F 150 75 0 150 soo FIGURE 1-25
ISOCONCENTRATION MAP
IN FEET
148 RIVER STREET, SUITE 220 COBALT IN ASH PORE WATER
GREENPHONE 64-421-9999LLE, SOUTH ROLINA29601 MAYO STEAM ELECTRIC PLANT
PHONE [phone]
r //��/���■�■�.., WWW.S n e"at m ROXBORO, NORTH CAROLINA
_ s r ■ ■ r rd DRAWN BY: B. YOUNG DATE: 07/01/2016
s PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

i L * e {
or
a
-
ti
y } 7 • .t- . K, ACTIVE }
ASH BASIN � �, y al
40
OL
W M.:
MI n t -
� ABMW-1
724
c4 r . ■*
LEGEND
'_ 1w ABMW-2 o
cD
`ABMW-3 ND
r 3' jY " 26200
ABMW-4 V
row
l� M2110
/ � i ', ice. e • _ ,a rJ�', _ �/" '�' � . - �_
NOTES!
1
,gyp -I A
IMT
GRAPHICSCALE
�F 150 75 0 150 Soo FIGURE 1-29
ISOCONCENTRATION MAP
IN FEET
148 RIVER STREET, SUITE 220 IRON IN ASH PORE WATER
GREENwLLE,SOUTH CARouNA296o1 MAYO STEAM ELECTRIC PLANT
+ PHONE [phone]
r _ WWW.S Brra.c m 6 ROXBORO, NORTH CAROLINA
DRAWN BDATE: 07/01/201WnTerm
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

°1 1' ti�sr y '• i a R i. �i k° y.`#xT
l Y }
mv
��yJi. ' :: §,. 4Y 5s' K. .y .. di •;5.w ,.�. '61�-,�j A ` 9 a,.s `s' § � `�E �'
a
, •
r; "... a-' t/•i. s. ":tit sa.. A, - 'b.,' tq' k a.1'gt p;
�` � u � .� L O r ti.;.A }soy w} � '` -4> �.` ..a •. "a,' - s M � s-' y'ry � t'P �,'
e �iyx o-
+
7
°*s q
eE s f
[ a: r. N �VRIF'
� 1 "� A y i Pi .4h
�}
r '
* ':•r ���, Y� 1, ,+ ,. a.a- -�
r" .+ aF. �. r:';1•, ..� ,..°e.,.. �; 'o _ `k •1 p s#k `, : ,�y. ^,A;.. " yam. L '7•�., °1. •_
a fi
,
,
r t
i
y x
Aa _n �5 :�+4 :- •r �y9[^r' eA D:. _ °. 4 +;t ��D - -.. .& q.. � �'�' °,'� - �
"
yyv {
a
N.
4. • y ` -c A'r}. - n s. , "` �� r� i. 'r 'k Y ,y f ''
13
x.21r}pp,, S g''
�• r 'k ° ''}_ 3 d4 A" s' .. , � '
�F. +;� d 7 �'�,� � � - � � �•�e'dL +�j'-A��V f.Y�f FT � �5f1�
TV
9 5!te, ay . j' 7•. {
'L
�Ix
a2
I
vp
7.
-
r
_. .. 5 �y�+eP' f�+�",..•�'id a �:��''�. �' •" {�
yy�{
9
fff_1�1
4 fin;
,
4'�1
1p
GRAPHIC
T fJ
,
ti
AA 250 0 500 AAA
111111111,11 ilill�lilllm IN FEET
148 RIVER
STREET,• •A A .A
PHONE [phone]
7VDRAWN BY: B. YOUNG DATE: 07/01/2016
PROJECT MANAGER: J. WYLIE
CHECKED

g L4 , * {
or
a
-
ti
y } 7 • .t- .ef ACTIVE }
ASH BASIN � �, y al
jp
ABMW-1 ,
M 815
cz
. t ■ o
LEGEND
{i ABMW 2
1
.+ 090 N .' 4 `i o V 4 � N
ABMW-3 ND
t
Y
" pr ABMW-41030
„ A.
R
• I7
16 _
NOTES:
f
• P
� � r
y ■
� GRAPHIC SCALE
160 76 O 160 300IN FEET FIGURE 1-33
ISOCONCENTRATION MAP
.� 148RIVER STREET, SUITE 2 0 MANGANESE IN ASH PORE WATER
GREENVILLE, SOUTH CAROLINA 29601
MAYO STEAM ELECTRIC PLANT
864-421-9999
`^�� ROXBORO, NORTH CAROLINA
_ DRAWN BY: B. YOUNG DATE: 07/01/2016
syn C
_ PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

'P' .lk% - m, '�,-,F�w. � � ._ - aed -�, _.-.1 s.t�' yy,,„ .. , • :..+s.. --_�C�.. �. L 'fir-r,� S, - _ _
•;'>I .� „py, C � . "$ r',S� r' .."� _. . #5. .� � - _ ice. '.y;:.��,.
I '
f -
II
g
is Y9, �,. f:Ti' •5:. ,:",: 4 !�. . ' �C:.a• ° 1 : = � - � ".' .:' \ a. - s � M,.. � s-• a�'•4 S` ;,. ,."4 r J
47
.. ...,
d a
Is �ro ryf ' `� �'�� , r x. 4 Y•.'c I
,:. ,<. .d• '. � ..-., ., r -.. t.' a -.., a ...•-ri �' - ,s ..i- "a �e .wh1 ]]
l
L,
..
i s.. r .: max tl ,r . t IT =,$ Y,, 9 tl..�• ... .: { d ,4' .� ,a1 > 4 °,_ $`l t• n,
,}�-+r ..- :i�,n ; . .i � - a._r � rr '$. •... 'd .rf i°.. . r 'r 4k. 9. : ° ,u'. T' c .. 'RK '.
,• ro' y.. 0�..... ,: �r �4y d`tl." ,° 1' a �. : r. {i : I., .}�r w"„I�
,.. M•': r , �. .. 1`tl ,.. �. 5F'!. 9:� J5'"d d .• 'i .. , .. . 4' t, S '_ •! .. '4 'iy
'�° ,+ � .... - .. ! ri .n - - Xi,. �$ a -.. X. dr .:.�,r� S: � ,,s '�+� S: L ✓. P � :{.' Ly
'I: � , _ :i : , •.. � ... .. 11y� , -"' J' _ t.: :' i{iy... n •., a til �' °. s k .:. � .... - � � h. r.Y F� �jy .,T I � - t.
. ,. � 6. F 1 - ♦ A A � ..�:A � P �IL. .. ,. - .. � �+�, I, r .. .., ,.�
1
L
r4
( S
i
:
, I
,
a
•� � ..<h..'4�i6 .% _'Vi4 tl _ � :,:,. •- .}+ ..- a�+ -. � ... . �4.�^ .�G
r, -Ay. �: ... � a 4 d S - -, .!l. •.... 1 //+:. :. �. '- ,q..•L�. •6 �r' 4 .�,.Y.a-1�:,_,,r�.t .5r'. ! {t'"f
E 3•, r r Yy, �., , 4 ... ,. „T'!I _ K'..,:... .....:�`' ". , .°r. a ti'} # ..hv Tr "� - r .t.
.Y �•. 4 y , `N L'. w, r�' -.'•t �,. I!w J.k �rd'o _.,1 .• :.. '�'. 1, •� ...: ''- ,��
' [X.
,} :•.. c. 'x. � �: , r r.. :..- � k .5.,.'�.. ."�Y-.s Wit.- .. __ , ;,..r.. �'� 'Mot"
:, '. .�-. -t .. .�' ir`a• ,. 4 :. _:I,v d. .e. _. q .1i 4_ i' h - °:..;-.. it v °.
' '` -� .' ' ..� ,. y i =� - ,.. •+S yr ..: , .. ./'F" �i. ..k '� �' �, y � � �` ` •
J
r^
- ",I �d°k,, � �+' _ , ' �- :: �. 5�d::�1=: � •V0'�{.�;YF �+ � _•r,ra�; �9I'a"'� J%�s, � � �'�+�1� � h�.. `.� ;'r - .'4 L .
I
1�
a
r w I r ! � r Y f �• .:r - .,yam- >':i '� '+4. +..r 'L7_-` T * � ' q q�' ♦ }"A� i
•t: 3 M1 �. i r.� E .:�• �r
L ,
Y y
I
P
' x I 1L/may,
'Y "M
"' �r' •., 1' • 1- �'- -,r�' � .. iY 1, �.� ,:p �''�a° :.a' I I ,�. �� � {.Y. ��: �_ >4' p•¢
-
-.:,• 'el• d.v j{±' .:'�ry.Ia�•� }AiR' .65 ,F. '.xit ���{�#.�, ti j+'�I v g.iil ` h4-.Y'"`'y` �'�,�I'g
-.. ♦t'fy. �!, ,:�;rl,': ' `•''`t S6 _r r i
• .r. iy;. L r ' ,.\ .,,' r ,,, ., -. J A - 'a,-1. a . ;'C"' ;." Ar"'
.`i ry./, `y�.fJalj 1 A;e ,y r..•; -
�' :4 �'!� i �,; e �'. . �, ''`i...? ,1 k•: .,i-r. �'� `�:� .^�r: .',t�'a'.,,}" rA.
I�
jiA. .C"x° 1} "` ,rr, . }�:. �: e�lg � e'T=Q 'L+: I`'2' .�I`' �I. tq;, y ,!', •, Y•. r, a.� � ..{ 3r
V.
i�-.,
.:. I F + i r �,. ��, r, a�{ � y ':` r , A y ,�.:'�, i .:#,. e a, ,a �y� `� �,a3i.•• �k {) '�+� i -..Jr r * >'' - - � � e-c.T f� .r •71
�, _ •K 'i � a�',� .II.� I p. ,{ {.: .. ..{. ti .�,. .:} 4 +�� �. '�`', ki' w .1 { V' -� t,
-, 3 ?jCi'ae, # r .Y-. - ♦ 7�. .r° a 'r� •, �• F '�'4 �" t3h � � ��Td �i 7�'��°I 1"I!tl y'• ,•r. {,�
AI�I�",
: 34 fig' - ::\ f•,_ - d 4 :�y�` $".,�. - ICI ,�� �' v
F
t
-
,
,
LEGEND
lit
,i 0! i �s -
A le
GRAPHIC SCALE
I
,
:
i
r
k' ,Aj1
4Q -ISOCONCENTRATION MAP
, Y
IN FEET
MANGANESE IN BEDROCK GROUNDWATER
148 RIVER STREET, SUITE 220
GREENVILLE ' SOUTH CAROLINA 29601 MAYO STEAM ELECTRIC PLANT
PHONE [phone]
;f r , DRAWN BY: B. YOUNG DATE: 07/01/2016
d 1
PROJECT MANAGER: J. WYLIE
'. i , • 1CHECKED BY: J. WYLIE

M■
—3
ACTIVE
ASH BASIN '
2
40
r ABMW-2
LEGEND
' 1,61�0 lsso
ABMW-3 1 STRONTIUM CONCENTRATION (Ng/L)
� s
•1800 e ND NOT DETECTED ABOVE REPORTING LIMIT
r *. STRONTIUM CONTOUR (Interval 200 pg/L)
2200 2000 — INFERRED CONTOUR
+
'a MONITORING WELL
ACTIVE ASH BASIN
s.
ASH BASIN COMPLIANCE BOUNDARY
ABMW-4 DUKE ENERGY PROGRESS MAYO PLANT SITE
2540 — - BOUNDARY
NOTES:
q A OCONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
EVENT (JANUARY 2016).
NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLE
CONCENTRATION ESTABLISHED FOR STRONTIUM.
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
s >! GEOSPATIAL DATA GATEWAY
III (https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
,r STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
r ;{ 0
1�
GRAPHIC SCALE
150 75 0 150 300 FIGURE 1-37
IN FEET ISOCONCENTRATION MAP
10 148 RIVER STREET, SUITE 220 STRONTIUM IN ASH PORE WATER
GREENVILLE, SOUTH CAROLINA 29601 MAYO STEAM ELECTRIC PLANT
PHONE [phone]
.VnTerra W n rr or om ROXBORO, NORTH CAROLINA
DRAWN BY: B. YOUNG DATE: 07/01/2016
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE
PADuke Energy Progress, 1026\00 GIB BASE DATA\Ma o\Ma Docs\CSA Su lement\Mao - Isoconcentration Ma s.mxd

4 r:
0
ri.
5 6 __ ___— _—__— _
LPER�SON CO, NC �
V
L
LEGEND
1 STRONTIUM CONCENTRATION (pg/L)
ND NOT DETECTED ABOVE REPORTING LIMIT
STRONTIUM CONTOUR (Interval 500 pg/L)
INFERRED CONTOUR
MONITORING WELL
ACTIVE ASH BASIN
ABMW 4D+`..+
A2070
ASH BASIN COMPLIANCE BOUNDARY
A
t r
�— -DUKE ENERGY PROGRESS MAYO PLANT SITE
� ¢� �-0 �
'
- BOUNDARY
f4
art
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
a _
4
EVENT (JANUARY 2016).
NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLE
CONCENTRATION ESTABLISHED FOR STRONTIUM.
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
500 250 GRAPHIC SCALE 1,000 FIGURE 1-39
IN FEET ISOCONCENTRATION MAP
Ir 148 RIVER STREET, SUITE 220 STRONTIUM IN TRANSITION ZONE GROUNDWATER
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] MAYO STEAM ELECTRIC PLANT
W,vvW. n rr or . om ROXBORO, NORTH CAROLINA
nTerra DRAWN BY: B. YOUNG DATE: 07/01/2016
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE
.b PADuke Enerav Pro ress.1026\00 GIB BASE DATA\Ma o\Ma Docs\CSA Su lement\Mao - Isoconcentration Ma s.mxd

i �__ .
ABMW
109
1 u
J t
rir
`C sf
A
ABMW-2BRL
,.. 1260
++,ABMW-4BR
- •
�v
MW-10BR`
1780
r
-
GRAPHIC SCALE
500 250 0 500 1,000
IN FEET
148 RIVER STREET, SUITE 220
'
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
����
wn rr or om
DRAWN BY: B. YOUNG DATE: 07/01/2016
PROJECT MANAGER: J. WYLIE
.b
'
CHECKED BY: J. WYLIE
PADuke Energy Progress, 1026\00 GIB BASE DATA\Ma o\A
.' I
LEGEND
1 STRONTIUM CONCENTRATION (pg/L)
ND NOT DETECTED ABOVE REPORTING LIMIT
STRONTIUM CONTOUR (Interval 500 pg/L)
INFERRED CONTOUR
ie MONITORING WELL
WATER SUPPLY WELL
r_ ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
- DUKE ENERGY PROGRESS MAYO PLANT SITE
— -gBOUNDARY
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
EVENT (JANUARY 2016).
NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLE
CONCENTRATION ESTABLISHED FOR STRONTIUM.
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
WATER SUPPLY WELL SAMPLED BY NCDEQ BETWEEN MAY 2015 AND
SEPTEMBER 2015.
FIGURE 1-40
ISOCONCENTRATION MAP
STRONTIUM IN BEDROCK GROUNDWATER
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

g IL * {
v'
di
e
y ti y-
- ASH BAAt
SINti
rw M
Ilk
y
J
_ 4 4 ABMW-1 A }
x a
f, % w 340 0 , • !
ABMW-3
{ -ABMw2 310 LEGEND
tj'�ly 4� �' 440. p ( 9 )
1 TOTAL DISSOLVED SOLIDS CONCENTRATION m /L
t + c ND NOT DETECTED ABOVE REPORTING LIMIT
}r ' " �#, �� *. TOTAL DISSOLVED SOLIDS CONTOUR (Interval 100 mg/L
T, k S + — INFERRED CONTOUR
4 '+ 00 'a MONITORING WELL
S r
�L
ABMW=4
' ACTIVE ASH BASIN
Alp 550 L .
ASH BASIN COMPLIANCE BOUNDARY
i
BOUNDARY
Y PROGRESS MAYO PLANT SITE
UNDARY
- DUKE ENERGY
. " 5 _
.;
NOTES:
-
» - CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
F i y
• Js { _ ,- rt F EVENT (JANUARY 2016).
`� �; THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500
�
y f W , mg/L.
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
r' a y i r r (https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
16 DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
aSTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
art` 0
F _ 150 75 050
RAPHICS1E 300 FIGURE 1-41
IN FEET ISOCONCENTRATION MAP
148 RIVER STREET, SUITE 220 TOTAL DISSOLVED SOLIDS IN ASH PORE WATER
GREENVILLE, SOUTH CAROLINA 29601 MAYO STEAM ELECTRIC PLANT
PHONE [phone]
Hnvw. n rr Or Om ROXBORO, NORTH CAROLINA
synTerra DRAWN BY B YOUNG DATE 07/01/2016
PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE
PADuke Energy Progress, 1026\00 GIB BASE DATA\Ma o\Ma Docs\CSA Su lement\Mao - Isoconcentration Ma s.mxd

•'�q
,
vNnurie�
ABMIN-2BRL
-r ABMW-2BR MAYO
350,., LAKE
+a
ABMW4BR
O
}
3 k•
a
' 'ylr w 1 1 14 • o �� _ AA
4Lr i.' L4a { ' t4 i(� '
fi ter~
o. wf K
Age
61
GRAPHIC SCALE
• -- 500 250 0 500 1,000
IT FEET
148 RIVER STREET, SUITE
OP./ -.w,� - - '� �,�' GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
synTerra t n rr or om
�.
^Jqa .Yy PROJECT MANAGER: G. WYLIE DATE: 07/01/2016
CHECKED BY: J. WYLIE
.b P:\Duke Ener Pro ress.1026\00 GIB BASE DATA\Ma o\A
LEGEND
1 TOTAL DISSOLVED SOLIDS CONCENTRATION (mg/L)
ND NOT DETECTED ABOVE REPORTING LIMIT
TOTAL DISSOLVED SOLIDS CONTOUR (Interval 100 mg/L
INFERRED CONTOUR
2 MONITORING WELL
WATER SUPPLY WELL
ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
- DUKE ENERGY PROGRESS MAYO PLANT SITE
— -BOUNDARY
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE ROUND 4 SAMPLING
EVENT (JANUARY 2016).
THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500
mg/L.
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
WATER SUPPLY WELL SAMPLED BY NCDEQ BETWEEN MAY 2015 AND
SEPTEMBER 2015.
FIGURE 1-44
ISOCONCENTRATION MAP
TOTAL DISSOLVED SOLIDS IN BEDROCK
GROUNDWATER
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA
lupplement\Mayo - Isoconcentration Maps.mxd

g IL * {
Ak
s r 'IF
-
di
ti
y A�} • .t .ilA� �' ACTIVE J6
ASH BASIN
4 M _ -
y A
' e
ABMW-1
M w 98.7 0 .�� � • � x
� • AJ
f
ABMW-2� LEGEND
yABMW-3 �
{ i MFr► 1.42.
0.603
10 1� INN
,fie f ND
ti.
ABMW�4 0
a ■ •' �t NOTES:
A • _ J ir IF
� � r
y ■
GRAPHIC SCALE
160 76 O 160 300 FIGURE 1-45
ISOCONCENTRATION MAP
IN FEET
.� 148RIVER STREET, SUITE 2 o VANADIUM IN ASH PORE WATER
+ a_ - GREENVILLE, SOUTH CAROLINA 29601
� � -�MAYO STEAM ELECTRIC PLANT
- PHONE [phone]
`
5ynTerra
I _ DRAWN BY: B. YOUNG DATE: 07/01/2016 ROXBORO, NORTH CAROLINA
_ PROJECT MANAGER: J. WYLIE
CHECKED BY: J. WYLIE

�. .a y ,� jy Y ,Jk� ✓� �
.- -r'J '.�.. . , 3^1. � �,r;:: r. * w� ;� .. ,-. � _ •:.ti. , � F".P,,.. ? y _ �. ` } . p �. : r M�v'rg 5 }t i d _
:yy41I £; 7I} - R`.; .jE� e'I o :c d h kl ,�♦8 {^y# ak, iv; 4�- �` :�P'' a , h •,.,,.s-
- � • d��+pt''u". � 4°': ,.,.� d '4 L ii �'s •� i�.J� 1 d 'SOM
!:-..'R"4'Td ,. g.,-ter .:h',. �,. K. •..- 3�y _ $-X"-iX,. .�. 1`�d.
s; tin
04
,4'
n
may. p 4 A
. . t-_� � •,rli •fit '' � Jr � _;r tt I A�: ��: �Gr �4 - � f .�. -
�1
'+: � , v: E .. -.a+ k� F� ;. - - Er i6� 'a•-- .a,:4it,� der ` � �ti� t ' g $y y ,y-��r + �
p� 9
H I�,
acer
: - 1 . A' .•,„ .. d .x' .§'gF ': J �Et B♦ #
s
I
t_ �rit�Mud:�re�
Fa
{
i:
ACTIVE � - .�, . + ,r: ` ♦
' •', . A3H BASiN 1�981 �' ` + a ' �
l ~, FILL �" • :'r
LEGEND
.ABMW 2BR,"• I
F 05 ABMW-4BR
3.94
---
} } M 1 68 r+ _
willg + ¢b�+N�• NOTES:
Y •N' 4 j,',X 1 : 1F"::4• : is �r yi,.} ,.. P.
All
a .�, i : �4• i ��I�'Myy"1arBR'` �'� ,r .ry � '�
GRAPHIC SCALE
500 250 0 500 1,000 FIGURE 1-48
v 4 ISOCONCENTRATION MAP
r ate. +' 3.:.. IN FEET
-� '� 148 RIVER STREET, SUITE 220 VANADIUM IN BEDROCK GROUNDWATER
�'�' GREENVILLE�10, SOUTH CAROLINA 29601
'T PHONE[phone] MAYO STEAM ELECTRIC PLANT
t-t ���� wn rr or om
• - ` t -� '" Jla•. may" —� �*.} DRAWN BY: B. YOUNG DATE: 07/01/2016 ROXBORO, NORTH CAROLINA
PROJECT MANAGER: J. EWYLIE
y CHECKED BY: J. WYLIE
b.

I CP_`CA1n
b.A
(/7
W
tz
C�
n
V7
Q
cn
U
O
Q
/
W
tY
C.0
LL_
n
Q
U
I
W
6
/
n
U)
0
Q
C.0
cB
m
Q
0
T
L6
O
/
U
N
O
vi
N
0
I-
n
E.
�
LU
0
/
rV
U
N
O
co
O
N
LO
O
ti
0
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
p� 470
460
W
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
300
B
MW-12S/ 12D
MW-12S: As <1
MW-12113: As <1
Q
0
\
o
`n
BG-2
As
<1
BG-2:
- �
w
<1
\ �
Q
i O
w
ABMW-4/ 4D/ 4BR ABMW-2/ 2BRl 2BRL
O /
ABMW-4: As 708
ABMW-2: As 394
ABMW-4D: As 60.9 ABMW-2BR: As 2.02
IA MW-4BR: As <1 IABMW-2BRL: As <1
a _
7-7
Q0 Q0 Q� Q7
<1
<1�
ASH BASIN
-1--1- \O�O�O
-
�--
-----------------------
ACTIVE ASH BASIN
--�
COAL
ASH
-------------------------_-___----—_---_-_-—_----_
--------__---_-—_---_--__
394
1w
CV)
-________________________
- -
- —____--_
—____-
___ --- Q
—___------_- -------------------------------—_-----_-__----___---
------_--_-----__-__-__----
—=
60.9
-------------------------------------------------------------------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
---_----------------------------------------- ------------ ------
- - - - - - - - - - - - - - - - - - - - - - - - - -
----------__---_--__----_--_---_---_--__---_--
- - -
- - - - - - - - - - - - - - - - 1
--_-----
---_-_-_- ao�oQo�/�oao�o a
---------------------------------------------------------------------------------------------------
---
-------- --- Q
-----------------------------------------------------------------------------------------------------
r-
-- —�
- = _=__ _ _ _-____ ___ _ _ ___ - --_ —_
— — — — — — — — — — — — — — — — — — — — — — — — — — — --- — — — — — ---
__ _ _ _ __ _____
___ __ __ __ __
__ __
__ __
___ _ _ _
_-_--_-_---_-_ 2.02_-_ —___ __ __ __ __ __ _ ___ __
_
N
--------- _C)
_-_________________________________ —_—_______ —_ —_
—_ —_—___-__-__-__-__-__-__-__-__-_
—_ —_ —_ — —_
<1-__-__-_____-_--______
<1—
—_ —_
-------------------------_------------_-------_---------------------_---------------_-----_-_--------------------------------_
+-I= - — -__-—___--____-___-_____-______
--_-_-_
—___-__
__- _ -___ __ ____
_-__-__---_---
_______________ - - —_-_____-_
__-_-__-___--_
_ _ __
—_- _-_ __ - __-___ -_-
—_- _ -__--
---_---__---__-__-_-_
-__-_-__-__-_-___-__-_-___-_
--__--___-__-__-_
-__
_______-------------- —____ —_—_--____--_--____________________
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
- — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
----------------------------------------------------
----------------------------------------------------
---__—____--_
— — — — — — — — — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — — — — — — — — —
---------------------------
---------------------------
—____--_____________--______--___f
— — — —
— — — — —
-----
-----
— — — — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — — — —
----------------------
----------------------
1 ---__ —_-__ —____ —_ —____--___________________________-
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
-------------------------------------------------
-------------------------------------------------
— — — — — — — — — — — — — — — — — — — — -
— — — — — — — — — — — — — — — — — — — —
--------------------
--------------------
- -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 O O O O O O O O O O O O 0 o O 0 O O 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O CC0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O o 0 0 0 0 0 0 0 0 o O O O O O 0 O O O O O O O O O O O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO V U') CO tl- co O o N M � LO (D r— CO O O — N CO "t U) M � CO M O N M 1�h U) Cfl ti M M O — N M � LO CO f— CO M O N M � Lf) CO I-- M M O N M ',I- LO Cfl ti M M O N M "t M
N N N N N N N N N N co M M co M M co co M M It It It It I It It It It LC) Lf) LO Ln Lf) LO LC) Lf) LO Ln CO Cfl CO CO Cfl CO CO Cfl CO CO Il- ti ti ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - ARSENIC
470
460
440
430
420
410
400
390
91-111
7.1
470 0�
460 > m
Lu
370
360
-_- - -_- -" \-- 340
-_--_- — _<1==- Q <1
-___—__----� 330
------------------------------------
--_-_--_________________ __--_-_= 320
------------------------- <1--------
_ 310
------------------------------------
---------------------------------
--- -T =1----- -- -- --- 300
O O O O O O O O O O O O O O O O
O O O O O O O O O O CD O O CD O O
+ + + + + + + + + + + + + + + +
Cfl r-- M O O N cM It LO O ti M M O
I� r-- rl- ti M M co co co M M co co M M O
NORTHEAST
SECTION B-B' - ARSENIC
FACING NORTHWEST
FACING NORTHWEST
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 p
460 Q
W
450
440
430
420
410
400
390
W
W
07
2
H
Lu
Z_
J
2
U
I-
Q
300
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
Ns NOT SAMPLED
ABMW-2131R: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR ARSENIC IS 10 pg/L.
�3
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-49
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-49
GEOLOGIC CROSS SECTION B-B'
WITH ARSENIC

I CP_`CA1n
b.A
(n
LU
tz
C3
n
v7
Q
U
O
Q
LU
!Y
C `3
LL_
n
L7
Q
U
I
C`3
LL.I
6
c6
D_
O
U)
O
Q
C.0
m
Q
O
T
L6
O
/
N
O
vi
a�
0
I-
n
E.
LU
O
0
rV
00
N
O
co
O
N
LO
O
0
C Q�
0
550 MW-13BR: As <1 or U')550
ABMW-2/ 2BRl 2BRL
ABMW-2: As 394
540 - = ABMW-2BR: As 2.02 540
530 m U) ABMW-2BRL: As <1 530
1
520 - I ABMW-3/ 3S J
ABMW-1 ABMW-3: As 79.8 � CW-1/ CW-1 D 520
510 ABMW-1: As 498 ABMW-3S: As 1.35 MW-9BR
510
FGD POND
500 500
490 ASH BASIN 490
480 t — --� - 480
\� �/ QO �Q v� VOA VO^ v O� v ' 470
470 �
COAL ASH 498 O' —' O O O O
460 = - -�� - - - _ _ 400 394 ---- 79.8 _
460
___ _ ___O O O O O O O
450- - - - - -_------- ------ Q450
100OOOOOQO�=_OOOO - �
---------------------------- - ---------------- --- - -- -
2u') 440 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - / - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 440.2u)
jFdTj:
_�_-_--_____--_____---______-______—__=______ _—__________=_________ -- Jy'D430----- 430q?
w" -- _____-_________________________ ____-__-- O QO O ---`_______________________________________________________________- w�
420 - -_ -__ __�_ —__ _ _ _ _ —__ --_ --___ _ _ _ ___ --_ _ _ _ _ _____ _ ___ _ _ __ _ _ _ _ _—_ _ _— - __-_-'�_ _ _ _ -_- - - -_-_- - - - -_- - - -_ _-_-_- -_- -_-_- -_-_- -_-_- -_-_- - - -_-_- -_- - - - - - - - -_- - -_- - - - - -_- - -_- - -_- - -_ - 420
__-__ --____-__ _ - O _--_�{__-___--_ —____________________________ — - -__—___--_-______---_-__--
----_- _- _--_ _-_ _ _-_--__ _ _-----_�_ ---_- ---_- _---------r -----------------------------------------------------------------------
410 =—-
----------------------------------------------------------------------------- - - - - -- 410
-- ----- ------------------------------------------------------
-----L--------�-----1-----_------_------_-- - _- _1�_ --_- ---__ ---- -_-_------------------------_----_----------_---
_-
-- __ ——_�- — _____-
_ _ _ _ _2.02_- - - - - - - - - ------_-_-_-
390- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------------------------------------------------------------------------------------ LU
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
----- - --- - --- --- -- -- --- --- ---- - - - --- - --- -- W
---------------------------------------------------------------------------- -------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
370----=----_____U)
--------------------------------------------------------------------------- _------------------------------------------------------------------------------------
2
-_---_---_---_------_----_--_--------------------------------------_------_----_-----_---_-_--------------_-----_--------_------------_---_------_---_---_-_---_------------_---_----------_--_----
_ — _ — - -____ —_ _ —____ _ __- - __- - ___ ___ _ _ _ _ _ _ _ _ _ ___ _ ___ - -_—_ __ —_ - -____ — _ —___— _ - -__ -_-__ — __-_ __- -__ ___ _____ ___ _ _ _ _ _______________ _ _ - _ -__ _______ ___ _—_- __-__ —_ __ -_-__ —__-_-____ _ ___________ _ _ ___ - - ___ _ _ ___ _ ___ _ _ _ _ -___ ILL!
----- --- --- --- --- --- -- --- --- -- --- - --- - -- --- --- -- --- --- --- ---
J
____________________ —____----__-_ —____—_--___________--______________________ --__ ---__ —_--__---_____________________________________-_—_______—_--_--_--___= U
330--------------------------------------------------------------------------- <1- ___-—____-_______--___—___________-_—_—_--____--________________________________= Q
—_ - --_- _--- --_- -_ —---_ -- -- ___-_----_--- _-_ - -- --=L -_-_ _-- --—_—___—_- - - ___-_ --- -_ _-----_____-______ -_---___----
�-I-I-����-I-�---��-I-I-I-���-I-I � ���-I-I-����-I-I-���� I-I-��-�-I--- �-��-I-I-��-�-�T 1=����-I---�-��-I-I--����-I-I-�-�-�----����-I-1=��-�� I-1=����-I-I-����-I--��+�-I-I-I-��-�-I-I-I------I-I-�-�-I-I-�-�-I-I-
320 - - - --- - - - - - -- - - - �----�--- -,- �- ---� �rt --- -,- �� --- - -� -- -,- -mot 320
O 0 0 O O O O O 0 O o 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
0 0 0 o O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
CDM d LCti N ) Cfl co M C)N co It LO Cfl � CO M CD M d' Lo co � 00 O CD co � co r'_ co O O N co 4 LC) CO I-- 00 M O N M t LO CO Il- 00 M O N M -,I- LO Cfl ti M O
N N N N N N M M M M co co M co M M I It It 't Rt It It It Lo Ln Lf) LO LO LO Lo LO LO LO O O CO CO CO O O co CO (0
WEST
Station
(feet)
C'
550
540
530
520
510
500
490
480
470
460
450
o�
� 440
CO �
430
W
420
410
H
W
W
3E
CO
U)
3E
I—
W
Z_
J
2
U
I —
a
0
Q
0
J_
MW-8S/ 8D/ 8BR
MW-8BR: As <1
MW-7D/ 7BR
MW-7D: As <1
MW-7BR: As <1
NO DATA
/ O
� �O� J
- - - HTN_
N,'
O ,�-,U�
_- -_-____-___-_ __- _-__-___ ____ - ___-_-_ _ _-_-__ O N 0 0 0 0
— — — — — — — — — — - — — — — — — — — — — — — — — — ____7 �_y — — — — — — — — — — — —
---------------------------------------------
------------------- _---_----- N--------_-----
------------------
------------------- ___________— <1—====_________________
------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
----------------------------------------
----------------------------------------
---------------------------------------------
----------------------------------------------
--------------------------------------------
---------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
-
550
540
530
520
510
500
490
480
470
460
450
440.0 cJn
CO '
430 a�
W
420
410
400
390
380
370
360
350
340
330
320
3 20
0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O O
0 0 0 0 0 0 0 0 0 o O C) O O CD O O CD O O
+ + + + + + + + + + + + + + + + + + + +
o N CO LC) O ti co O O N M "t M CO I� M O
� 00 00 00 co 00 00 co 00 00 co
EAST
SECTION C-C' - ARSENIC
FACING NORTH
SECTION C-C' - ARSENIC
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SECTION C-C' - ARSENIC
FACING NORTH
SECTION C-C' - ARSENIC
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR ARSENIC IS 10 Ng/L.
WnTerra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-50
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-50
GEOLOGIC CROSS SECTION C-C'
WITH ARSENIC

I CP_`CA1n
b.A
(n
W
tz
C�
n
Q
(n
U
O
Q
/
W
C'3
LL_
n
Q
U
I
W
6
/
B_
U)
0
Q
C'3
cB
m
Q
0
T
L6
O
/
U
N
O
vi
a�
0
n
E.
a�
W
0
0
rV
rn
N
O
Co
O
N
LO
O
ti
0
B
620-
610-
600-
590-
580-
570-
560-
550-
540-
530-
520-
510-
500-
490-
480-
0 �1 470-
460-
450-
440-
430-
420-
410-
400-
390-
380-
370-
360-
350-
340-
330-
320-
310-
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 0 0
460 >
450
440
430
420
410
400
390
W
LU
07
2
LU
Z_
J
3E
U
Q
300
300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O o 0 0 o O O o o O O O O O O O O O O O O O O O O O O O O O O o 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O o O O o 0 0 0 0 0 0 0 0 o O O o O O o O O O O O O O O O O O O O O O O O o O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N co V U') (0 1-- M O O — N CO � LO (0� 00 0)0 — N CO � U) O � M M CD M d U) (0 ti M M O — N M � LO CO f— CO M O N M "t U-) CO I-- M M CD M "t U) (0 ti M 0) O N CO 'ItU�
�— — r �— r r — — r r N N N N N N N N N N co M M M M M co M M M It It " d' 't ' It Rt It d' LC) Lf) LO Ln LO LO LC) LO LO Ln C0 C0 CO CO C0 CO C0 C0 CO CO I� ti ti ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - BORON
7\
jA B <50
ACTIVE ASH BASIN
004
MRS III
MIMS
MW-3
MW-3: B 896
CW-2/ 2D
470 CW-2: B 539
CW-211): B 484
460
450
0
Q
O
ry
440
W
Y
430
Q
J
O
420
Q
410
MW-16S/ 16D/ 16BR
MW-16S: B <50
MW-16D: B <50
MW-16BR: B <50
470 0 u)
460
W
10
1 in� m mi iiii�I�
400 w 400
390 w = 2 - 390
U U
380 D Q 380
or IY ry
W 896 % 539 10 00 - 370
W l
_ <50 360
LLJ
_—- -_.--�-_-
340
484 <50
Z-_- 330
�-__—___—_1 --- --------__�
U r - --- --- --__ -- =--j=` T- _____ --_ - 320
__-- � ---_L_ -- — <50 = =�
300 - - ---- ----- -_ -- --_-------- 300
0 0 0 0 o O O O O O O O o 0 0 0
O O O o O O O O O O O O O O O O
+ + + + + + + + + + + + + + + +
Q0 r-- 00 07 O N M It LO O ti 00 M O
ti 00 00 00 00 00 00 00 00 00 00 O O
NORTHEAST
SECTION B-B' - BORON
FACING NORTHWEST
FACING NORTHWEST
GRAPHIC SCALE
300 0 300
IN FEET
HORIZONTAL: 1"=300'
30 0 30
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR BORON IS 700 pg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-51
DUKE
600 PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
60 ROXBORO, NORTH CAROLINA
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
FIGURE 1-51
GEOLOGIC CROSS SECTION B-B'
WITH BORON

I CP_`CA1n
b.A
(n
w
tz
C3
n
v7
Q
U
O
Q
L7
LU
!Y
C.3
LL
n
L7
Q
L7
U
I
C`3
W
6
/
c6
n
U)
Q)
Q
C'3
cB
m
Q
0
T
L6
O
/
O
N
O
vi
Q)
0
I-
n
E.
)
LU
0
0
rV
WE
MW-13BR
MW-13BR: B <50
550 0 0 ABMW-2/ 2BR/ 2BRL 550
ABMW-2: B 8400
540 - = ABMW-2BR: B <50 540
U) U) ABMW-2BRL: B <5o p
0� _ Q
530 m 530
ABMW-3/ 3S MW-1BR
520 - ABMW-3: B 1800 J 520
ABMW-3S: B 1200 CW-1/ CW-1D
510 ABMW-1 - 510
ABMW-1: B 5840 FGD POND
500 500
490 ASH BASIN 490
480 ' -WOOF. �� = 480
5840 I / <�i> \ J 1 O O O O,�1470
470 COAL ASH �/
/ � � � NS
41
_ _ _ 8400 --- 1800 460
--_ =-_ _ __ -__ _ ___ __ O Soon — NS O O O
450 —___ —_--------- �ZQQ� ��oQo�oQo�- 450�^
Ou)440 =--------------------------------- 20p0 /--_----__----___-----__------_----___ ---__= NS 4402u)
cam-______P
--- ------------------------ i--�-_-_-___---___----__-___-__-_ — ____-_—______ ____
—>------------------------------------------- - w�
------------------------------------------------- - - - - -- 0 — ------------------------------------------------------------------
420 --_--_ —_-_ —___--_------- —_------_-----__ 420
----_ —____________________________ ---__------_----___---_____-
410----------------------------------------------------- ---- --- -- - _- ----------------------------------------------------- - --- --- —___- __ ----- -----_--_--_--____--_--_-_—______________________-----__--_____---_ —___--_____---_--_-
4 =---____----__--- -------------------- ---_ _--- ---_ --- -- - _______ _-_-_--- --- --- --- --- --- --- -_-_ -_ ___ -- - -- __ ------- ._- 4
00---------------------------------------- ----- -- -- <50 T-^---^T --- T- ------ ------ � ----------_----------- 00
------------------------------------------------------- -- - - -- ----- _--_---- —_---------------------------- — ---------------------------------------
390--------------------------------------------------------------------------------------------------------------------------------------------------------- - - - - -- LLI
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
----- - --- - --- ---- --- ---- --- ------------------------------------------------- - -- --
LU
---------------------------------------------------------------------------- -------------------------------------------------------------------------------------
380-
-------------------------------------------------------------------------------__---- ------------_ ----- —_-------------------------------------------------- _
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
370==—_----__---___---_—___---_--_ —_ —_--_-----___--_--_--________________________________
--------------------------------------------------------------------------- _------------------------------------------------------------------------------------
2
-_---_---_---_------_----_--------------------------------------------------------_---_---_-_--------_------_-----_--_------_---_---------_---_------_------_-_---_---------------_----------_--_----
_—_ —_— —________--_--__--_--_ —__________--_______________________-_—_______—__--_--_--____- w
350-====___________________ —-_—____--_____ —--_--_______--_--_______________- -'- _--___ - -- ___ -- __ -- __ -- __ --- __ --- __ - __ - -- ___ -- _ -- ___ ---
J
340
___________________________—____--_ —__ —--_--_______--____________________ U
-- - -- _ - -- _ _ - _ -- _ _ !-------------------- _ _ _ _ -----------_----------------------------------------_-
I—
_ - -_ -- - —---_--_ -- --____ -- --- - -------_-------_ --_ --------- --________________ - — - ---- - -- - -- —--_____-______ -_-- -___-- -
i-�+4�-i-i-+�-4-�--- �-++-i-i-+�-+-�T i-��+�-I-i---�-i-i--�+��-i-i-�-+-�----�+��-i-i=�-�� i-i=��++-i-i-��+�-i =i-�+� r i-i-�+-�-i-i-i------i- �+-��-i-i-�+-��-i-i-
320 -� - T - -- - - - - - -- - - - �----�--- -,- �- ---� �rt --- -,- �� --- - -� -- -,--mot - 320
O 0 o O O O O O o O o 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O o O O O O O O O O O O O O O O O O O o O O O O O O O O O O O O O O D
0 0 0 o O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O o 0 0 0 o O o 0 0 o O O O O O O O O O O o O O o O o o O O O O O O O O O O O O O D
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +-
O N CO It L0 Cfl I` M M O N M �t LC) Cfl M M O N M V LO (fl 1` M M O N M �t LO CO I-- M O O N M It LC) CO I- M M O N M �t LO CO Il- 00 M O N M �t Lf) Cfl ti M O
N N N N N N N N N N M M co M M co M co co co I It It It Rt It It It L In L0 L0 Ln L0 L0 In Lo O O C9 O cc Cfl O co C9 O
WEST
Station
(feet)
C I
550
540
530
520
510
500
490
480
470
460
450
C^
.2co 440
W 430
420
410
H
LU
W
2
(n
07
2
H
LU
Z
J
2
U
H
2
320
p
Q
O
qJ_
L.L
MW-8S/ 8D/ 8BR
MW-8BR: B <5o
MW-7D/ 7BR
J--�NO
MW-7113: B <50
MW-7BR: B <50
DATA
)/ 7P�
------------- j�
O
<50
NS Q�
NS
-------------------------
--------------------------
-___----_____________
------------------------------
11 —__
---------------------------------------------
-_ —_
—_--_
<50 -_ - —_ --
----------------------------------------------
------------- - - -
___—_—__________-
--------------------------------------------
--------------------------------------------
- ----- -
<50 ----------------------
- - - -- N
=____________________-
------- - - - - --
- - - - - - - - - - - - - - - -
_-- - -_�_----------------
--- ---
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
� ----------------
-
550
540
530
520
510
500
490
480
470
460
450
C ^
440 0 u-)'
430
W
420
410
400
390
380
370
360
350
340
330
320
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
CD
O
O
O
CD
O
O
O
O
CD
O
O
O
O
O
O
O
O
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
co
dt
LO
(fl
Il-
M
M
O
N
co
d'
U')
Lfl
P-
M
M
Il
ti
r—
�
ti
t`
�
�
I--
CO
M
co
co
M
co
M
M
M
M
EAST
SECTION C-C' - BORON
FACING NORTH
SECTION C-C' - BORON
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR BORON IS 700 pg/L.
�3
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-52
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-52
GEOLOGIC CROSS SECTION C-C'
WITH BORON

I CP_`CA1n
b.A
(n
w
tz
C�
n
Q
(n
U
O
Q
/
W
!Y
C'3
LL
n
CIO
U
I
w
6
/
c6
n
U)
Q)
Q
C'3
cB
m
Q
O
T
L6
O
/
U
N
O
vi
N
O
I-
n
E.
a�
LU
0
rV
B
620
610
600
590
580
570
560
550-
540
530
520
510
500
490
480
p �1 470
460
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 p
450
440
430
420
410
400
390
W
W
07
2
W
Z_
J
3E
U
Q
300 300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O o 0 o O O O O O O O O O O O O 0 0 0 o O O 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O 0 0 0 0 0 0 0 0 0 0 O O O O O 0 O O O O O O O O O O O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO V U') CO 1`1- co O O N M � LO (D r- CO O O N CO "t U) M � M M O N M d U) (0 r- M M O N M � LO (0 r- CO M O N M � Lr) CO r-- M M O N M ',I- LO (0 r- M M O N M "t M
�- - r - r r - - r r N N N N N N N N N N co M M co M M co M M M It It I- It It I It It It It Lr) Lf) LO Ln Lf) LO Lr) Lf) LO Ln Co Co CO CO Co CO Co Co CO CO I� I� r1- I� ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - BORON
MW-12S/ 12D
MW-12S: Cr(VI) 0.038
MW-12D: Cr(VI) 0.52 M1
Q
0
Ir
f
\
LO
BG-2
BG-2: Cr(vl)<0.03 =
\
\
w
0.038
0
Q
_a
0 /
ABMW-4/ 4D/ 4BR
ABMW-2/ 2BR/ 2BRL
ABMW-4: Cr(VI) <0.03 -
ABMW-2: Cr(VI) <0.03
ABMW-4D: Cr(VI) <0.03
ABMW-2BR: Cr(VI) <0.03
_
a
�J
ABMW_ VI 4BR: Cr(VI) ) <0.03
ABMW-2BRL. Cr VI 0.052
<0.03
BASIN
j
CD
-----------------------
ACTIVE ASH BASIN
---------------
--�PF
ASH
<0.03 Iw 1 9wc,)
—________—___- —_ —_____—
—_ — —_
-_
--------------------------_-------------------------------------------_---------_-------_--
-- —___-__
<0.03
QI
R
<0.03
—__-__-_-_------__-_________________ —____--_---__-_—__--_____-
- - --- --- --- - ---- --- - --- ---- ---- - --- -- - ---- --- -- - - - - --- - - - ---
—_---____—___-__-__-_____--_-------
--- - - - - --- _ ---- --- _ --- - - ------
---- ----
-- ___ —
_ --- ---- --- - --- --- --- -
ao�oQo�oao�o a
-----------------------------------------------------------------------------------------------------------------
---
_-_______--_--_--_--_--_-_-___-________________-_-______-_-__---__-___-__---__-___-____--___-__-____________--_
---___-__
__-------__�_-------Y--�
-_------------_-_-----------------------------_-_-_-------------_-_-_-----_------
_—_-_-------_-----_-_-_-------_----
_—_------ ----
-- - --------------------------------
------- N
--__ — _ — _ — _ —_ —_ —_ —_—_________--_________
----------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
------------------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - -
-------------------------
- - - -
- - - - -
- - - - -
-----
- - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - -
---------------------------
-__= 0.052 --__ —_—_-- —___ —_
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--------------------------------------------
- - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
--------------------
- -
MW-3
MW-3: Cr(VI) 0.17 M1
CW-2/ 2D
470 - CW-2: Cr(VI) 0.087
CW-2D: Cr(VI) 0.089
460 —r
450
0
Q
O
ry
440
W
V
430
Q
J
O
420
Q
410
400
470 p u)
460 Q
W
MW-16S/ 16D/ 16BR
i
-
430
420
MW-16S: C00 0.083
MW-16D: Cr(VI) 0.097
-
MW-16BR: Cr(VI) <0.03
410
0
J
W
400
7
390
U U
H Z
380
W
W
__ _ ", ,.�
0.17 0.087
\
D Q
IY ry
U m-
380
370
Q
-
_
0.083 __
_ —
360
_-_
- -_ -
350
W
=_____=
0.089- �
0.097
340
z
__--
J
___--___
--_--_--_--_-_---
_�_
330
--___
- --- -
- - - ---------------
-------------------
---
—_ -------------
320
-----
300
- - --_-
____-
-_ —_ __--
---_-_-
IF
300
O O O
O O O
O O O O
0 O O O
O O O O
O O O O
O O O O 0
O O O O O
+ + +
Q0 r-- M
+ + + +
0') O N
+ + + +
M � LO O
+ + + + +
I1- M M O
ti M M M
co M M M
M M M M O
NORTHEAST
SECTION
B-B' - BORON
FACING NORTHWEST
FACING NORTHWEST
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY AND
COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND QUANTEX
(2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. NC DHHS HEALTH SCREENING LEVEL FOR CHROMIUM (VI) IS 0.07 pg/L.
5. M1 = MATRIX SPIKE RECOVERY HIGH; ASSOCIATED LABORATORY
CONTROL SPIKE ACCEPTABLE.
LJ
WnT(erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-53
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-53
GEOLOGIC CROSS SECTION B-B'
WITH CHROMIUM (VI)

I CP_`CA1n
b.A
(n
w
C3
n
v7
Q
U
O
Q
Ln
LU
C.3
LL
n
Q
Cn
U
I
w
6
n
U)
0
rn
Q
C'3
C=
cB
m
Q
0
T
L6
O
/
N
O
vi
N
0
I-
n
E.
�
LU
0
0
rV
MW-13BR
MW-13BR: Cr(VI) <0.03
550 O 0 ABMW-2/ 2BR/ 2BRL 550
ABMW-2: Cr(VI) <0.03
540 - O ABMW-2BR: Cr(VI) <0.03 540
U) U) ABMW-2BRL: Cr(VI) 0.052 p
0� _ Q
530 m ABMW-3/ 3S MW-9BR 530
520---- ABMW-3: Cr(VI) <0.03 J 520
ABMW-3S: Cr(VI) <0.03 CW-1/ CW-1 D
510 ABMW-1 - 510
ABMW-1: Cr(VI) <0.03 FGD POND
500 500
V I I I 77
490 771 �i ASH BASIN I INS 490
1 +1
480
480 O O O O O
Y v ^
470COAL ASH 470
/ NS
460 _77) <0.03 <0.03 O O O O O � O 460
450 _______ _ _- __ _-_ _ - _-_-_ --c_�_ �/ O O O O Q O �- NS O O O - 450 cz.,
cJ ------------------------i - ��" <0.03 ----------------------- --- - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0u 440 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - / - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - N S 440 0
-__ -----_______-___-_-___-_--_-----_-_-�-_--_____---_____----__-____-___-__-__-____-__-_ __-____ _- cat
>z------- =r-i-------------------------- ------ _ _ _ _ _ _ _ _ _ _ _ >�
-To430----- - ____________________________________ --- �\---_--_-_ - _ --_____-_____-___--___-_____-_____-__-_-___--_-= 430q?
w�-_-____-__-_-_____-_�_______-_-__________________________________-_______-___-- _ oC�o- w�
__
420 -__ _ _ -__-- _- ___ _ _ _ _ - _ -__ _ _ _ -__ _ ___ _ _ _ _ __ _ _ _ _ _ _ _ _ _ - -___- _ _ -�- - _ - - - _ - _ _____ _ _-____ _ _ _ _____ _ _ _ _ - _ ___ ___ _ _ _-____ _ ___ ______ _ ______ _____ _ ___ _ - _ _ _ _ - 420
__ ____- _ _ _-_--___-_________ - __ --
__ -_-_ _-______ ________ _-______________ _ ____ _- _ _ _ _ _- - - - _ - - - _ - - -
_ _ _ _ _ _ _ _ _ _ _ _ _ ---- --- ---- _-------- - __________________ -_-___ -_-_-_-___---__-_____- -___-- -____ -_ -_
410-==-= -_________________________________________ - --_�- 410
_------------------------_------------_----_------_------_---------_-_--
4 =_______________-__-______---____-______-_____-_-___--__- --- --- __ --- ___- _ --- --- ___ --- ___ --- ___ -_-_ __ ___ _- - _- __ _--___-�._- 4
00
--------------------------------------- _------- _ _---------- 0.03-====------_--- _ _ _ _ _ _ _ _ _ _ _ _ _
__________________________ - ____ - ____ - _- - _______ - -- ________________ - _-___ ----_--________-___-____-___-_---_-_--_--___ - _-__-__-____--
390---------------------------------------------------------------------------_----------------------------------------------------------------------------- - - - - -- LU
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
----- - --- - --- ---- --- ---- --- ------------------------------------------------- - -- -LU
-
---------------------------------------------------------------------------- -------------------------------------------------------------------------------------
380--------------------------------------------------------------------------------__---- -_-----_----_ ----- -_-------------------------------------------------- =
---------------------------------------------------------------------------------------------------- _ -_--_-_----_-------_------------------------------------
370==-_----__-___--____-___-_-_________________________--____--__--______--_--_--________________________________
--------------------------------------------------------------------------- _------------------------------------------------------------------------------------
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
360 -__ -_--______-____________________________-_-__-___---__-______-________-______--_ ____________-________-_---_-___-_-_-_-__-__--_-----_________________________-______ ~
w
350________________________ --__-___-____-_ ---_---_____------_________________ ____ - _-__ - _____ --___________________-________-___-__--__ --_--_-_ - ____-_____---- z
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -' - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
J
U
330- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.052===--____-_______--__________________ -____-_______--______________-___-_ - ______-= Q
-_ ----- _-____ -_ ---___--__ ____---_-_--- _ --- --- -__--- -_ -- _-- ---__-___-_- -- __---- --- --- ------- --_--- --_ -_____ --- __---- __- _
--T-�- +.4-++4+--i- +4�---�a-4-I ---++--=+�- -�Ti=� � -i---�-��-T = ��fi---- - ---- + �--i=��-� i-i=��� --1-k- -4-1 =i-�� TT-��-E--I-T-------T--��---��-� i-i-
320 - - - - -- - - - - - -- - - - �----F--1 -,- f� ---� �rt --- -,- �� --- -320
O 0 0 O O O O O 0 O o 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O D
0 0 0 o O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O D
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
CD M d' LO (0 rl- 00M O N co 't LC) 10 r- CO M CD M d' Lo co r� 00 0) CD co U.) co r- co O O N CO d LC) C0 ti 00 M O N co -'t LO CO I- CO M O N M -'I- LO (0 ti M O
N N N N N N N N N N M M M M co co M co co M I It It 't d' It Lo Ln Lf) LO LO Lf) Lf) Lr) Lf) LO O O CO O (0 (0 O CO CO O
WEST
Station
(feet)
C I
550
540
530
520
510
500
490
480
470
460
450
C^
cJn 440
W 430
420
410
H
LU
LLI
_
(n
U)
_
H
LU
Z
J
_
U
H
2
320
p
Q
O
qJ
L.L
MW-8S/ 8D/ 8BR
MW-83R: Cr(VI) <0.03
MW-7D/ 7BR
MW-7D: Cr(VI) <0.03
MW-7BR: Cr(VI) <0.03
NO
DATA
C:)
NS
<0.03 NS
-_----�
-_ _-_-__---_-_------------------
-___-________________ ___-__-_
O�O�
-
-----------------------------
-----------------------
--
--------------------
---------------------------- N-------------
___-_-__________- <0.03=====________________--
--------------------------------------------
--------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-_-- _=_--------------------------------______
--- --- --- - --- ---
550
540
530
520
510
500
490
480
470
460
450
C ^
440 0 u)
430 Jy
LU
420
410
400
390
380
370
360
350
340
330
320
o
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
CD
O
O
O
CD
O
O
O
O
CD
O
O
O
O
O
O
O
O
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
co
dt
LO
(0
�
00
M
O
N
co
d'
U-)
co
r--
00
M
�
ti
ti
r-
ti
ti
rl-
ti
rl-
I--
00
00
00
co
00
00
co
00
co
co
EAST
SECTION C-C' - BORON
FACING NORTH
SECTION C-C' - BORON
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-21131R: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY AND
COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND QUANTEX
(2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. NC DHHS HEALTH SCREENING LEVEL FOR CHROMIUM (VI) IS 0.07 pg/L.
5. M1 = MATRIX SPIKE RECOVERY HIGH- ASSOCIATED LABORATORY
CONTROL SPIKE ACCEPTABLE.
WnT(erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-54
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-54
GEOLOGIC CROSS SECTION C-C'
WITH CHROMIUM (VI)

I =f%CAM
b.A
w
tz
C�
n
Q
cn
U
O
Q
/
LU
C'3
LL
n
CIO
U
I
w
6
/
n
U)
Q)
Q
C'3
cB
m
Q
O
c�
L6
O
/
U
N
O
vi
a�
O
I-
n
E.
a�
LU
0
rV
B
620
610
600
590
580
570
560
550-
540
530
520
510
500
490
480
0 �1 470
460
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 0
CU
460
450
440
430
420
410
400
390
W
W
07
LU
Z_
J
U
Q
300 300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 O O O O O O O O O O O O 0 0 0 0 O O 0 o O O O O O O O O O O O O O O O O O O O O O O O O o O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O o O O 0 0 0 0 0 0 0 0 0 0 O O O O O o O O O O O O O O O O O O O O O O O o O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO V U') CO tl- co O O N M � LO (D r- CO O O N CO "t U) M � CO M O N M d U') Cfl ti M M O N M � LO CO r- CO M O N M "t Lr) CO I-- M M O N M �t LO Cfl r- M M O N M d- M
�- — r — r r — — r r N N N N N N N N N N co M M co M M co M M M It It It I It Lr) Lf) LO Lr) Lf) LO Lr) Lf) LO Lr) CO CO CO CO CO CO CO CO CO CO Il ti ti ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - BORON
MW-12S/ 12D
MW-12S: Cr(TOT) 1.43
MW-12D: Cr(TOT) 2.99
Q
O
of
f
\
�
BG-2
\ BG-2: Cr(TOT)<1
=
_j
\
1.43
w
0
lo
\ QLL
O /
ABMW-4/ 4D/ 4BR
ABMW-2/ 2BR/ 2BRL
ABMW-4: Cr(TOT) <1
ABMW-2: Cr(TOT) <1
ABMW-4D: Cr(TOT) <1
ABMW-2BR: Cr(TOT) <1
_
o-_
ABMW_ 4BR: Cr(TOT)<1
ABMW-2BRL: Cr(TOT) <1
�J
<1
2.99 O � O O O O O O O ���
ASH BASIN
0 0 --!-�- fi=--�____��
�-- -
-----------------------
— /�Q Q
-----
ACTIVE ASH BASIN
--- _
)
_--__-___-__---�-� ------�-
___ _ _ ____--__--___
�_ __ __--__=-_-__--___
__--_
- ASH
--__
_____-_ _=_____--___
_\�_
------------- --—_-_------ —_------_------_---------_------_------_-_------_
—---- _ —_---_—
—_----_- —
-------_------
— — —_----_-______
—_---
\
/
a
------- -------- ---- - - --_ - -
- - - - - -- - - -- - - --
<1
<1
--------
----
-----
----
-----
----
----
----
---------
----
----------------
-----
--------
----
----
- - --
-----
----
---------=
-------------------------------------------------------------------------------------------------------------
___-___�_-_-____-�_-___-__--___-________--�
�J0------------------
--0
Q
_-______--_--_--_--_---_-__-___
-------- -- -- -- -- -- -------- --- -----
______________-___-__--__--_
------- ------------
___-_____-_
------- --- -- ----------
--
---- -- -----------
�-___�_
-------------------------------------
---�0-Y--�<:D
_- __-----__�_-� -
-�
dl �-I-
----------------------------------------------------------------------------------------------------
_-____-_ —-__---- —_________________ — — ____ — ___-- —
-____--_____-__----___ —-__-__-__-_____-__-__-__-
— ---------
—_ _- -
11
—11
-----------------------------_------
- - -
- - —_- cn
_- — -__- — ___--____-___-_____-______
— ___-__
__- _ -___ -- _- ----___-__-____
_-__-__---_---
_-_—_-_____-_
__-_-__-___--_
—_- _-_ __ - __-___ -__—_-
_ -__--
---_---__---__-__-_-_
-__-_-__-__-_-___-__-_-___-_
--__--___-__-__-_
-__
------------------------------------------------------
--_______ —- ---- -- - - -- -- — ____ — _ —_--____--_--____________________
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------
-------------------------
— - -__ — ____--_
--------------------------
-----
—
----
----------------------------
____--_____________--______--___
----------------------------
---- --------------------------------------
<1 — --__ — _ -_ -- — ___ — _ — ____--___________________________-
-------------------------------------------
--------------------
---------------------
- -
MW-3
MW-3: Cr(TOT) <1
CW-2/ 2D
470 11 1 CW-2: Cr(TOT) <1
CW-2D: Cr(TOT) <1
460 1 1 111
450
0
Q
O
ry
440
W
V
430
Q
J
O
420
Q
410
470 0 U)
460 Q
W
MW-16S/ 16D/ 16BR - 430
MW-16S: Cr(TOT) 4.57
MW-16D: Cr(TOT) <1 - 420
MW-16BR: Cr(TOT) <1
410
n�
m
m
11ID
400
w
400
390
w
= 2 -
390
U U
380
_- ;,
380
D <
W
<1
<1
U m
370
W
\
=
Q
_
_ _
4.57
360
350
LLI
<1
340
J
330
()
-----------------------------------_-_--
-
-�___-____--�-==1-
1====_
____-�__-____
-—
_-=-L-11-r
-
--
<1--_------
Q---_---__---__------
__—__—
310
--�_---__-__---_-___---_—_
---
-----
----------
____________
-
300
-- -- --
------------
------------
11
300
O O O
O O O
O O O O
o O O O
O O O
O O O
O O O O O o
O O O O O O
+ + +
Cfl r-- M
+ + + +
O O N
+ + +
M It LO
+ + + + + +
O ti M M O
I�
ti M M M
M M M
M co co M M O
NORTHEAST
SECTION
B-B' - BORON
FACING NORTHWEST
FACING NORTHWEST
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR CHROMIUM (TOTAL) IS 10 pg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-55
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-55
GEOLOGIC CROSS SECTION B-B'
WITH CHROMIUM (TOTAL)

I CP_`CA1n
b.A
(n
w
tz
C3
n
v7
Q
U
O
Q
LU
!Y
C.3
LL
n
Q
U
I
C`3
W
6
/
c6
n
U)
Q)
Q
C'3
cB
m
Q
0
Ln
O
/
N
O
vi
N
0
I-
n
E.
�
LU
0
rV
MW-13BR
MW-13BR: Cr(TOT) 7.65
550 O 0 ABMW-2/ 2BR/ 2BRL 550
ABMW-2: Cr(TOT) <1
540 - = ABMW-2BR: Cr(TOT) <1 540
U) U) ABMW-2BRL: Cr(TOT) <1 p
o� _ Q
530 m 530
ABMW-3/ 3S MW-9BR
520---- 1 ]T ABMW-3: Cr(TOT) 1.29 J 520
ABMW-3S: Cr(TOT) <1 CW-1/ CW-1D
510 ABMW-1 - 510
F— TV I ABMW-1: Cr(TOT) <1 FGD POND
500 500
71
490 � �i ASH BASIN 490
480 �� = 480
<1 Y �O�O�O�O�O'
470 ��J �� �� COAL ASH
/ NS 470
460 -_ _ z 1.29 460
-_____-_-____ -- -__ -_- O NS 0 0 0
__ __ _ __ __ _______ �� a s��OQO�OQO�_ 450�^
450 - - - _ _ _ _ _ _
— — — — — — �--_--_-_-__----— —_—_—_— --_�—_— —_—_—__--_--— —_ —_ —_ —_ —_ —_ Ell—
--------------------- - _-__- - -_-_-_- -__�
4402c>a
m�n0n440
M:E-_____________—____ ____ 6_____-
>--_ _=T�430 _-__-_-___--_-430q?
w
w�
420-____—__--________-_—__—__—_____—______—_-___—_---__-_--___-__---- _ --- __—_______—______—__—_________________—_________—_______________—___—_________________—____- 420
___-__ — —-_-____ —_ —_ —_ — - —-_______—__________ —_ ___- ---- _--- _ ---
---- -- ---- _----------- ------------------ —_-___ — _ — _-_-___---__-_____- —____- — ____ — _ —_
410-- - - - - - -_ - - -_1 _ -_ _-_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - ___ _ _-----,------_ _ _
400______________------________---___-_-___-___-_-__-_-_ —-__--_- --------_ _ _-__-__-__-__--__-_ ---- -- __ -_ --_ -- --_ �-- -_ __ =___ _-__ ---=1- 400
-------------------------------------------------------------------- - - - - -- ---------------------------- ------------------------------------------------------
<1
390 =--_----__----__—_—____—_____________—___---____---_____—____— -- _- - - - - -- -- -
---- - -- -- - -- -------- - - - - -- - - LU
___ _ _ __ __ ___ __ __ __ __ _____ __ _ ___ ___ - I- - _- --rt -- f_= - -- t_fi_�_= = fi_t_ __-___-_-____-�--=________ !__-_�___________ �-!-= w
380=________________—_—_—_—_______—_________-__-__-__-__-_____-__-_____-__________-_—_--_____--_—____—_-_______________________-_-____—_—_--_--_--____- =
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
370==—_----__ —— ________________--____--__--______--_--_--________________________________
--------------------------------------------------------------------------- _------------------------------------------------------------------------------------
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
360-__—__—_-______-_____—______________________—_—__-___---__-______-________—__-___--_____________-________-_---_-___—_—_-_-__—__--_-----_________________________-______ ~
__ —__ —_- -____ —_ _- _______ ___ _ _ _____ _____ _ ___ _ _ _____ _ _ ___ - -- __ —_ --_____—_ ___—___—__ _ _ _- ___— _ —_ __ _ _ _ _ _ _ ___ _ ___ _ _ _ _ _ ___ _ ___ _ _ _ ____—_ _ _ _ -_—_ __ _ _ _ —_ __ —_ _ - - _- -- _ _ ___ _ ___ _ _ _ _ _____ _______ _ _ _ _ _ _ ___ _ _ _ _ ______= w
350-===____________________ —-__-___-____-_ —--_---_____------_________________ ____ — _-__ — _____ —-___________________-________-___-__--__ —-_--_-_ — ____-_____---= z
J
340=__________________________________ — __ —--_--_______--__________________-- - -- — - -__ — ____ —___________________________________ — - -__ — _______ — ____ — _-_____= U
330 =_—____-____—__________________________________—___--__--_________—_—___-- <1--=
--- --____-_______--__________________—____—_______--______________-___-_—______-= Q
_ —_---_-_--_-- _-____ -_---___--__ ____---_—_--- _-_ --- —__--- -_-_ _-- --—__-___—_- -- ------ --- --- ------- --_--- --_ -_____--------- __- _ 2
320 - - - --- - - - - - -- - - - �----�--- -,- �- ---� �rt --- --- - -� ---,--mot - 320
O 0 0 O o O O O 0 O o 0 0 0 0 0 0 0 0 0 o O o 0 0 0 o O o o O O O O O O O O O O o 0 0 0 0 0 0 0 0 o O O O O O O O O O O o 0 0 0 0 0 0 0 0 0 D
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O o O o 0 o O o O O O O O O O O O O O o O o 0 0 0 o O o o O O O O O O O O O O o 0 0 0 o O o 0 0 0 D
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +-
O N (0 d' L0 Cfl rl- O M O N co It LO Cfl 1-- 00 6) O N M ,Z Lo Cfl 00 O O N co Lo Cfl r— O O O N co -' Lo CO ti 00 M O N M 't Ln CO ti 00 M O N CO Ln Cfl r--00 O
N N N N N N M M M M M M M M M M I ItIt 'tRt It 't It L0 U') L0 Ln L0 L0 LO U') Lo O O CO O Cfl co O Cfl CO O
WEST
Station
(feet)
C'
550 550
540 540
530 pQ 530
O
520 520
510 MW-8S/ 8D/ 8BR 510
500 MW-8BR: Cr(TOT) 4.73 500
MW-7D/ 7BR
490 NO DATA MW-7D: Cr(TOT) <1 490
MW-7BR: Cr(TOT) <1
480 480
470 470
460 O - 460
450 � ) O ( ) O\� \ — 450
C0 440 - 440 0 u-)'
>�—--- -_- --- NS >�
LU!2 1- _ __—_ _-_- _ _ _ -_ — - - - <1 O NS 430 LU
420 —_ _ -_—__---_—_-_----� 420
-___--_________________ ___-__-__
410----------------------------- �"--_" -- 410
____--____—__—_—_ ____—__--__ 4.73 =_____—_—_-
H_ ________________—____-- 400
w=-_----___----____ _---------------------—-
LLl______-_--_____—_-_-_-__ — -=-390
_------------- - - - - -- -------------- - - - - -
-
_-_-___-__-_-_- _-__---__--------------__----__
380
_------------------—__-__--_____- — __--_===--370
LU_- ----- --- - - - - --- - --- - - --- ----- - - - -_- - -_- - - -_- -_- - - - - - - - -_ 360
Z—________________--____--_____-—___-_- —_
--------------------------------------------
350
C) =_--------_------------------------------------
~------------------------------------------- 340
Q-------------------- - --- -- - - - _-- - - - - -- _- -
�_---- --- 330
LJ-= ===
320 - --- --- ------ ---- - --- -- 320
o O O O o O o o O o 0 0 0 0 0 0 o O o 0
O O CD CD O CD CD CD CD CD CD CD CD CD CD CD CD+ + + + + + + + + + + + + + + + + + + +
O N CO dt LO (fl r— 00 M CD CO "t U-) CO r— 00 M
rl-ti ti r- ti ti rl- ti rl- I-- CO 00 00 co 00 00 M 00 00 00
EAST
SECTION C-C' - BORON
FACING NORTH
SECTION C-C' - BORON
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
1COALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
N-S NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR CHROMIUM (TOTAL) IS 10 pg/L.
iT(erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-56
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-56
GEOLOGIC CROSS SECTION C-C'
WITH CHROMIUM (TOTAL)

I CP_`CA1n
b.A
(n
w
tz
C�
n
V7
Q
(n
U
O
Q
/
LU
C.3
LL_
n
Q
U
I
w
6
/
n
U)
0
Q
C.0
cB
m
Q
0
T
L6
O
/
U
N
O
vi
N
0
I-
n
E.
a�
LU
0
rV
Q0
M
O
Co
O
N
LO
O
ti
0
B
620
610
600
590
580
570
560
550-
540
530
520
510
500
490
480
p �T 470
75
> m 460
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
300
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 p
CO
460
W
450
440
430
420
410
400
390
W
W
C7
2
LU
Z_
J
3E
U
Q
300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 0 O O O O O O O O O O O O 0 0 O 0 O O 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O CC0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O o 0 0 0 0 0 0 0 0 o O O O O O 0 O O O O O O O O O O O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO V U') CO 1`1- co O o N M � LO (D r- CO O O N CO "t Uf) to � M M O N M d LO Cfl ti M M O N M � LO CO f- CO M O N M ,t Lf) CO I-- M M O N M ',I- LO Cfl ti M M O N M d- M
N N N N N N N N N N co M M co M M co co M M It It It It I It It It It LC) Lf) LO Ln IUD LO IC) IUD LO In CO Co CO CO Co CO CO Co CO CO I1- ti ti ti ti 1-
SOUTHWEST
Station
(feet)
SECTION B-B' - COBALT
MW-12S/ 12D
MW-12S: co <1
MW-12D: co <1
I
Q
—Ho
o'
f
\
�
- BG-2
\ BG-2: co <1
2
�
< 1
w
�
Q
_�
O
ABMW-2/ 2BR/ 2BRL
O /
/
ABMW-4/ 4D/ 4BR
ABMW-2: co <1
ABMW-2BR: co <1
ABMW-4: co 1.19
ABMW-2BRL: co <1
7�
C�
ABMW-4D: co 3.95
ABMW-4BR: co <1
�J��
Q Q Q Q Q Q Q Q Q
Q
<1
ASH BASIN
1----�____��
-----------------------
— /�Q Q
-----
ACTIVE ASH BASIN
_
)
--�
COAL
�_ ____--__ __ _ _ _ _-_ _--___ ___ _ _
_-__ _ _ � � ___--_ _ _ _ __--__
__ _ _
__--_ _ _ � _ \
ASH
-- ______ --__
--___ __-- -____--_
--___ - __--
_____________---_--_—_____—_____—___ —____ —_—__——__—__--
—___—--_--___---_—______
— 1.0
----------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------
--_------------------_---_---_------_------_---------------_----------_------_-----_—_------_---_---_—_—_
— 1.19
_— �o
3.95
_—___——----—________________--_---_—_—__--____—
__--_-—--__-_--_--__--— -_-
--- —__—_—__—____--_---------
-_--—-
--____--_-_--_-_--_
—
_—__
0 <:DoQ aQ
--------------------------------------------------------------------------------------------------------
___-___-_-_-____--_-___-__--___-________—
_---- ----_—_
Q�
`J-�a�-�-�oi
�--�---�-Q
Q
_-______--_--_--_--_---_-__-___
______________-___-__--__--_
----------------------------------------------------------------------------------------------------------i
___-_____-_
-----
_--�<:_D_------------------------------------------------------__--_-__---_-_--_--_-__--_--_-------
--------------Q--
-----------Y-�
—_
-----— = -------
-----------------------------
N
_ _ _ _ _ _
_ _ _
_ _ _ _
—
----—
———-- c�
__— _ __ __—__—___
_—__—__---_---
--_—_—_____—_
__—_—__--_
—_— _—_ __—_ __—__—_—
_--
---_---__--—__—__—_—_
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
—__—_—__—__—_—___—__—_—___—_
--__——___—__—__—_
—__
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
--_______ —------------- — ____ — _ —_--____--_--____________________
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
--———————————————————————————————————————————————————
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
— --__ — ____--_
--------------------------
——————————————————————————
- - - - - - - - - - - - - - - - - - - - - - - - -
—
----
————
- - - - -
____--_____________--______--___
--------------------------------
————————————————————————————————
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
<1 — --__ — _-_-- — ___ — _ — ____--___________________________-
---------------------------------------
———————————————————————————————————————
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
---------------------
—————————————————————
- - - - - - - - - - - - - - - - - - - -
- -
M W-3
MW-3: co <1
470 CW-2/ 2D
CW-2: Co <1
W-2D: Co <1
460 C
450
Q
O
440
Iry
W
V
430
Q
O
420
Q
410---
400-
�[
470 p�
460
m
LU
MW-16S/ 16D/ 16BR
-
430
MW-16S: co 2.11
MW-16D: co <1
420
-
MW-16BR: co <1
410
0
J -
W
400
7
390
U U
1— Z
380
-- _ Vi
D Q
380
H
W
<1
<1
U m -
370
W
=
_
Q _ _
2.11
360
U)CO
---
-- —
350
340
LU
<�
Z
_—_---_ _
330
_1
_______________
-------------------=---------------_
—
_
____—_—_______--
= i
320
= = = = __=_____�_____-__
- - — -----
-
-- — —
—
300
300
O O O O O O O
O O O 0 O O O
O O
O O
O O O O
O O O O
O O 0
O O O
+ + + + + + +
Co r-- M O O N
+ +
M It
+ + + +
LO O ti M
+ + +
O O
I� ti M M co
co co
M M co co
M M O
NORTHEAST
SECTION
B-B'
- COBALT
FACING NORTHWEST
FACING NORTHWEST
GRAPHIC SCALE
300 0 300
IN FEET
HORIZONTAL: 1"=300'
30 0 30
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. IMAC VALUE FOR COBALT IS 1 fag/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-57
DUKE
ENERGY
600 PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
60 ROXBORO, NORTH CAROLINA
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
FIGURE 1-57
GEOLOGIC CROSS SECTION B-B'
WITH COBALT

I CP_`CA1n
b.A
w
tz
C3
n
v7
Q
U
O
Q
LU
tY
C `3
LL
n
L7
Q
U
I
C�
W
6
/
n
U)
0
Q
C'3
cB
m
Q
0
T
c�
L6
O
/
N
O
vi
a�
0
I-
n
E.
a�
w
0
0
rV
LO
O
Q0
O
N
LO
O
0
MW-13BR
MW-13BR: co <1
550 < ABMW-2/ 2BR/ 213RL 550
ABMW-2: co <1
ABMW-2BR: co <1
540 - = ABMW-2BRL: co <1 0 540
530 - m 530
ABMW-1
ABMW-1: co 2.06 ABMW-313S J
520 ABMW-3: co <1 520
ABMW-3S: co 3.42 CW-1/ 1 D
510 MW-9BR 510
FGD POND
500 500
490 ASH BASIN — 490
480 _
Q Q Q Q Q 480
� Y � � v � V�.J� V�.� v �,� v .
470 �� �� � _ 2.06 1 o COAL ASH � � � `� � 470
/ NS
------ << 1 J 460
-_ _-__--- O \� NS O O O O
�/ O o�oQoQo�- O�O��O - - 450 ,
450---------------_----_- _
�J _—__- _---= i=-- ��" 3.42 -----_-______--_____- ----------------
2cn440 ----- --------------------------
--------------------------------------------- NS 440,U)
------- -------------------------------------------- --
�, 430 -------------------------------------------- -----------------------------------------------------------
430
�,
w" - - - --—-------------------- - - - - -- �-1_-1-1-J----- _--- - - -_ -
- _ �Q� �Q�- - ________-_---__----------------------------------------------= w�
420-- —__-_____________________________________ —____ —_--=--'Q _-----420
_________________ —____ —_--__—_-_________—______--__---____________--- _` -
________________________--__ —_ —_ —____ - ---__--__________--______________________- __ _�__--__--__--_--_--_--_____--____--________________-_-_--_--_____-_-_ —__--____--_--__-
4 -_______________—__-____--- —_____—______ --____---___--—____________- 7-_— _ - ____�__ =_--� ____=___�__ _____ _--__—�____—_-_ __=��-T—_ —�_ ____+ __ __- 4 0
00---------------------------------------------------------------------------- <1 _ 0
-------------------------------------------------------------------------- _ __-______ — _ — _______ — _ — _ — _____ — _-_-_____-_____-______ — _______ — _______ — _
- - - - - - - - - -_-_- - - - _-_-_- - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
_ _ _ _ _ _ _ _ _ _ - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - -- - - - - - - - - - -_- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -_- - - - -
LU
----------------------------------------------------- __-__ -I =_ =__ —___-=-_----�=_-_+�-�—____= -I-_ �-+�-I-I =__-+�-�-� -___ -�- __- -�-�- --_ -� =_ +-� � �-I-!- W
380_ --_ - - -------------------------------------------------------- - -------------------- - - - - --
___-__--_—__-_______-_---__--_-_--— - —_- i- - -- T- - - —- - - - - -- _ __1i=- - - -
—__-_—_---_-_-________ _-__--_-_------- -I-+4�-I-l--4--I-IT----T4--1-T—T4--
_
370 - —- ----- -_- - - - - -_- _- ---- -__- - -- — _- _- - -- — __ - - -- —--------------------- - - - - -—_ —_—_-- _— _—_ CO
--------------------------------------------------------------------------
—
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
-_---_---_------------------------------------------------------------------_---_---_-_------_--_----_--_-----_--_------_---_----_---_--_---_------_---_---_-_---_------------_---_----_------_--_----
360 __-________---__-_____ __-__-—_
_ - —_--_ - ______________________________ - ---__ - —_--_--_--_ - - _--______________________-_—_______ --_—_—_--_--_--_______________________________= W
-==-_==-===_==-=_=-=_==-_�_==-====_-=_-_�_-==_-==_-==_-==_-==_-==_-_-z
350 � —
J
340 _
---- --- ---- ---- - - - - -- - -_- -- --- - --- - --------------- --- --- -- --- --- --- --- --- ---- --- _ - __-- __
-- --- -- 330r-f- --- --- --- =--= --- -+�T7 7 ___-=I-==�- ===�i==r1 ___ -- ___ --- ___ --- ___ ---
320-- ---- ---- ---- --- --- --- --- --- --- --- -- -- -- --- - --- -rt --- -----� ---- --- - �- -320
O o O O O O O O O o 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O D
0 0 0 O O O o o O o 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M ',I- LO Cfl ti 00 M O — N M Ict LO (9 f1- 00 6) O N M � Lo Cfl ti 00 M CD M I- L0 Co � w O O N M d LO CO ti M M O N M "I-LO CO ti 00 M CD M "I-Lo Cfl � W O
— — — — — — — — — N N N N N N N N N N co M co co M co co M M co R It It d Lo Ln LO LO LO Ln LO LO Ln Cfl O Cfl O Cfl Cfl Cfl Cfl Cfl O
WEST
Station
(feet)
C I
550
540
530
520
510
500
490
480
470
460
450
ow 440
(B �
430
W
420
410
H
W
W
CO
3E
H
W
Z_
J
2
U
320
0
0
J
Q
MW-8S/ 8D/ 8BR
MW-8BR: co <1
NO
DATA
MW-7D/ 7BR
MW-7D: co <1
MW-7BR: co <1
01/
_ O NS
_---_----_-��- <1 NS
__________________ __-____-
-_-_ -_--_----____ --__-___ <1 --- -__-- -
le-
------------------- ------------------------
---
-----------------------------
-----------
-_-_-_-_-_---_-_-_-_-_-_-_-_--_-_-_-_-_-_-_-_-_-_-_-_-_-_
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_ _-
— — — — — — — — — — — — — — — — — — — — — — — — — N�7 — — — — — — — — — — —
<1 = _
_________________-------____--_--_—_—_—
--------------------------------------------
--------------------------------------------
--------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
----------------------------------------------
-- --_-_ --- -- ----11---' ---- --- -_---
550
540
530
520
510
500
490
480
470
460
450
� J
440 0co
C6
430
W
420
410
400
390
380
370
360
350
340
330
320
o
O
o
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
o
O
CD
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
M
"I-
LO
Cfl
�
00
M
O
N
M
�
to
O
1—
00
M
ti
ti
�
�
�
�
ti
�
�
ti
00
00
00
co
00
00
CD
00
00
00
EAST
SECTION C-C' - COBALT
FACING NORTH
SECTION C-Cy - COBALT
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
II:L'V69k1[0lhilrA0]hilI2RVJ/_TA121:»aky/211
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. IMAC VALUE FOR COBALT IS 1 pg/L.
47
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-58
DUKE
14W E N E RGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-58
GEOLOGIC CROSS SECTION C-C'
WITH COBALT

I CP_`CA1n
(n
w
tz
V7
Q
(n
U
O
Q
/
LU
!Y
C'3
LL_
n
CIO
U
I
C�
w
6
/
c6
n
U)
0
Q
C'3
cB
m
Q
0
T
L6
O
/
N
O
vi
N
LZA
0
I-
n
E.
a�
LU
0
0
rV
WE
B
I I I I 1 I I I I 1. , I I 1 I I I 1. 1 I 1 I I I 1. 1 , 1 I 1 I I I 1. 1 , 1 I 1 I I I 1. 1 , 1 I 1 I I I 1. 1. 1 I I I 1 I I I 1. 1 , 1 I 1 I I I 1.
620-
610-
600-
590-
580-
570-
560-
550-
540-
530-
520-
510-
500-
490-
480-
pU) 470-
460-
LLI
450-
440-
430-
420-
410-
400-
390-
380-
370-
360-
350-
340-
330-
320-
310-
7\PABMW-4/
4D/4LBR
300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 O O O O O O O O O O O O o o O 0 O O 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O o o O o O O O O O O O o O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M V LO C0 1-- M O o N M � LSD O � 00 O O N CO � LID (fl � 00 0) O N M d- LO (0 ti M 0') O N M LO (0 1— 00 M O N M � Lf) C0 1� M M O N M � LO (0 ti M M O N M d L0
N N N N N N N N N N co M M M M M co M M M � It d' LC) LO LO L0 LO LO LC) LO L0 L0 C0 C0 (0 C0 co CO C0 co co C0 1l- ti 1` ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - IRON
CW-2/ 2D B'
470 CW-2: Fell 470 p
CW-2D: Fe 332
460 460 Q
m
W
45 MW-3 Q - 450
MW-3: Fe <10 O
44 0r 440
W
430 Q MW-16S/ 16D/ 16BR - 430
MW-16S: Fe 520
420 MW-16D: Fe 203 - 420
410 MW-16BR: Fe 126 4-410
0
400 W 400
390 w = 2 - 390
T, � U U
W D Q 380
LU _ IY Cr
U Co 370
cn —
Cn _ �: 520 360
LU
350
300
------- t - �. 340
J------- 332 203
U - ---- -r ---- 330
Q --- --- ----- --- 320
,�- --_-__
ZT _ 126—_------
310--�'—'—' ----- —----=—t
300 —T— —----—T— -- --- 300
O O O O O O O O O O O O O O O O
O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + +
C0 1-- 00 0') O N M It LO O 1— 00 M O
ti 00 00 M M 00 00 00 O 00 00 M O
NORTHEAST
SECTION B-B' - IRON
FACING NORTHWEST
FACING NORTHWEST
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 p�
460 > m
LP
450
440
430
420
410
400
390
LU
2
LU
2
LU
Z_
J
2
U
Q
300
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ — BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
®
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR IRON IS 300 pg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-59
DUKE
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-59
GEOLOGIC CROSS SECTION B-B'
WITH IRON

I =t1%CAM
b.A
(n
w
tz
C�
n
Q
U
O
Q
LU
!Y
C.3
LL
n
L7
Q
U
I
C�
W
6
/
c6
n
p
U)
Q)
Q
C'3
p
cB
m
Q
0
T
L6
O
/
O
N
O
vi
0
I-
n
E.
a�
LU
0
rV
C Q ABMW-2/ 213R/ 2113RL
550 Ge � ABMW-2: Fe 502
550
ABMW-2BR: Fe 1100
540 - O = ABMW-21311RL: Fe 106 540
530 05 ABMW-3/ 3S O 530
ABMW-1 ABMW-3: Fe 26200 MW-9BR
520 ABMW-1: Fe 724 ABMW-3S: Fe 4340 520
510 ti I ICW-1/ 1D 510
FGD POND
500 500
490 � ASH BASIN 490
480 -
��
470- ASH �, 000 / �J NS 470
460 __ - _�� _ _ - _ _ 502 — -- 26200 O 460
1000 - O O O NS O O O O
450------------------------
�^
�c_j 440 =-____ ________________--__-__--- 4340
-- -440_.2'
ca �
______________ >--__ - -=-=�0 430-_-_-_---_-------_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_---_-_-_---_----------------- _-__-__-_---___-�__--------------___�___-L�� u)a��
-------------------------------------------------------------- - -----------------------------------------------------------------------
410-------------------------------------------------------------------- -_---- --_ ------ -------------------------------------------------------------------------410
--- — — — _ _ — — _ _ — _ _ -- _ — — _ _ _ — _ _ — _ _ _ — — _ _ _ _ _ — —400 T - -- —— =�___ -- ----_--- ---�T-- ____________ _= _ --- ___ — ___ — —__ ------------ __ __� J-- ------------------------- ---------------------
w
--------------------- --------------------------------------------_----- -- -- -- -- -- -- -- -- -- - -- -- -------- _ ---- - -- - --
I-
7 7 7-77 380 ----�--- _ _-_- --- _- _-_- _- ---- -- -- - ---� ------I -- I ---_-_- -r - -- - --- _ -_ _ ---- ----_--------�----
t7L
-_ ---- --- --- -- -_-_ _- -_- _ _ -- _____ __ ___- _ _ _ _ - - -_- - _- __- __-__-___ __-_________- __- -_-_ ---j--
ie
CO ---------------------------------- -==___-__=_____ I-�+4�-I-i-
----
-_________________-_-__-_---_--_-_---_--_--- - _ _
-- --_ --—=+��_________— ___— W__-__-_-_-_---_-_-_--_--___-___-__
360-==___—r— _—-___ _— --------- - --- -- -
z
- -----------------------------------------------------------------------
_ _ - --- ------------- gp __
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
350 __ _ -- - --- -- 4---- -- ---------_,_- --- - - ---------_—__---- ___ --- _ -
__ =-f=fi-- t_= 2
----------- ----- ----- _------------- - - -- - ---- t ---- ------------------------------------ ------ ---------------
---- -- --- -- --I-I 7 -- �i-I-I T]- --- --- --- --- --- - _ - _-- _-- -- --- --- --- --- -- _-- - _-- - - _-- -- ---- _-- - --
340 = _ - - - - - - - - - - - = - - - - - - _ _ _ - _ - - - _--___- — _ _ __ ____ _ - -_ ___-__ _ - __-_ __ - _ -_ ___- _ _ - ___-__ _ - __ - _- - - - -_ ___ - - - _ __ - ___-_ -_ _____- -___-
_ _ --- -'_
--- --- ---------------
---- --- --- 106 - ---
---- --- ---- --- ------ -------- - - - - --
--- ---4- --- --- --- --- --- --- --- ---- ---------------
330-=--- -- ---- ------------------
- --- --- --- =--= --- --- --- -7- -----r-7�=--I--- --- --- ----- --- ---_ --- --- ---4--
320 1- - -- ---- ---- ---- --- --- - -- - I- -- --- --- -- --- -rt --- -----� ---- --- - 320
O 0 o O O 0 0 00 0 0 0- 0 0 0 0 O 0 0 0 O O O O O O O O O O O O O O O O O O O o 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O 0 0 0 0 0
O 0 o O O O o O O O 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O O O O O O O O O O O o 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO ',I- LO Cfl 1,- 00 CID O N M L0 (9 fl- 00 6) O N M � Lo co ti 00 M O N M 't Lo (0 � w O 0 N M d LO CO I,- M M O N M LO CO ti 00 M O N M "t Lo Cfl � W M
N N N N N N N N N N M M co M M co M M M M R It It It Rt It It It Ln In LO Ln LID Lo LO LO Lo Cfl O Cfl O Cfl Cfl Cfl Cfl Cfl O
WEST Station
(feet)
C'
550
550
540
540
530
p
530
Q
0
520
520
510
-
MW-8S/ 8D/ 8113R
510
MW-8113R: Fe 417
500
500
490
NO
DATA
490
MW-7D/ 7113R
480
MW-7D: Fe 154
-
480
MW-7BR: Fe 422
470
470
460
._
460
450
O O\_450
un
p cn 440
�
440 .��
>
_-_-_
____-_-_- -- -_-_-_
N S
w430
_
-_---_-__----��-
1540
NS
430wa�i
420
_
__-_-_
_ __
420
410
= _ _ — - _ ___ - - _ _-
- —-___-__ — ___ _ ___ ___________
_____
_ ____-
_ - - - =
410
—___-_ --___�
-
-�
_ ___
- 417
--
400
w
---___= _------� -
-------
-----_----------------390
- - - - - - - - - - - - - - - -
- - -
- - -
- - - - - - ^7 - - - - - - - - - - - - -
(n
_ ___ _ _ _ _ _ _
-_
_ ___
_ __ ___
_ _ ___ ___ _ _ ___ ___ _ _ _ _ _ _ _ __
_�
_=-_______-__
_ _-_-___-___ —_- ___
-_=
422_-
_____ - _- ___ _- _- _____ —_-
380
_—__ _—__
_—__
370
w
z--------------------------------------------
360
---------------------------------------------
350
U
Q
--_____________-_____---_--__-__-___-__-___-__
_ — -330
320
= --_ _-_ _--_-----
---
-- _-_ _---- __-_ --- --
320
O 0 0 0 0 0 0
O 0 0 0 0 0 0
0 0 O
0 0 0
O O O O O O O O O O
O O O O O O O O O O
+ + + + + + +
O N CO LO CO
+ + +
Il- OO M
+ + + + + + + + + +
O r N co It LO CO Il- 00 O)
I- ti � I­� � �
I- I- �
co co co co co 00 co co 00 00
EAST
SECTION C-C' - IRON
FACING NORTH
SECTION C-C' - IRON
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
• SURFICIAL WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR IRON IS 300 Ng/L.
lqmw
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-60
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-60
GEOLOGIC CROSS SECTION C-C'
WITH IRON

I CP_`CA1n
b.A
(n
w
tz
C�
n
Q
(n
U
O
Q
/
w
C `3
LL
n
Q
U
I
w
6
c6
n
U)
Q)
rn
Q
C'3
cB
m
Q
0
T
L6
O
/
N
O
vi
a�
0
I-
n
E.
a�
w
0
0
/
rV
WE
N
O
co
O
N
LO
O
0
B
I I I I I I I I I I 1. 1 1 , 1 1 I I 1 I I I 1. 1 1 , 1 1 , I 1 , I , , 1 1 , 1 1 1 I 1 I I I 1. 1 1 , 1 1 1 I 1 I I I 1. 1 1 , 1 1 1 I 1 I I I 1. 1 1 , 1 1 1 I 1 I I I 1. 1 1 1. 1 I I I 1 I I I 1. 1 1 , 1 1 1 I 1 I I I 1.
620-
610-
600-
590-
580-
570-
560-
550-
540-
530
-
520-
510-
500-
490-
480-
C� 470-
460-
w
450-
440-
430-
420-
410-
400-
390-
380-
370-
360-
350-
340-
330-
320-
310-
�m7
or
-
300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O o O O O O o 0 0 0 0 0 0 0 o O O 0 0 O O 0 0 0 o O O 0 O O CI CI O 0 O o 0 o O o 0 0 o O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O 0 0 0 0 0 0 0 0 0 0 O O O O O o O O O O O O O O O O O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M V Lf) CO t-- M O O N M LO O I` 00 7O N M t LO CO I- 00 M O N M d LID (0 Il- 00 O O N M LO CO f- 00 6) O NM 't Lf) CO I-- 00 0) O N M ILf) (0 Il- M O O N cM d
N N N N N N N N N M M M M M M M M M M t d' 't ' It It It d' Lf) Lf) Lf) Lf) Lf) Lf) Lf) Lf) Lf) Lf) (0 Cfl co C0 (0 CO Q0 co Cfl C0 Il ti ti ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - MANGANESE
MW-3
MW-3: Mn 1420
FACING NORTHWEST
FACING NORTHWEST
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 C
460 > Z
450
440
430
420
410
400
390
H
LU
LU
2
07
2
LLI
Z
J
2
U
300
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ — BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
®
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR MANGANESE IS 50 pg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-61
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-61
GEOLOGIC CROSS SECTION B-B'
WITH MANGANESE

I CP_`CA1n
b..0
(n
LU
tz
C3
n
v7
Q
U
O
Q
LU
!Y
C `3
LL_
n
L7
Q
U
I
C`3
W
6
(6
n
O
U)
O
Q
C'3
cB
m
Q
O
T
L6
O
U
N
O
vi
a�
O
I-
n
E.
�
LU
O
0
rV
WE
MW-13BR
MW-13BR: Mn 519
ABMW-2/ 213R/ 213RL
ABMW-2: Mn 1090
C ABMW-2BR: Mn 237
Q - ABMW-2BR: Mn 161
550 550
540 - = ABMW-1 ABMW-3/ 3S 540
U) (n ABMW-1: Mn 815 0
O ABMW-3: Mn 1210 Q
530 m ABMW-3S: Mn 531 530
J MW-96R
520 - � 520
510 FGD POND CW-1/ 1D 510
500 500
490 ASH BASIN 490
480 480
-- �� 00�0 O O O �J 815 I �/ ��i 470
470 COAL ASH /
NS
460 -- _� _ _ _ _ _ 1090 ---- 1210 460
-_ --_ _ __ - = - O_ O O O NS O O O
_ _ _ _ _ _ _ _ _ _ �O a s��O0O0OQD O��O�O�OQO IN!
450J - - - - - -- - --O O - O - - O - O O O --- ---- �- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0- - - - - - - - - �440�cn
>� _____= 519I --____ —_--____--__------___----- -� >�
Jy430------ ------ ---- ------------------- O --___- —_--_____-_____-___--___-_____-_____-__-_-___--_-- 430-a)
LU
wv--------- ---- ---- --- --- _- -- O mil-------------------------------------------------------------------
------ ----,------ -------_----_---_---------------------------------------_-----------_---_-----
420--------- Li ---'- --- --- --500. -- _____----- O� �- ---L-- —____ - —_—_________ —_—_____-_—___________—__________—====-420
----__4----
--------- -- -- --- --- -- ---l�--
----- --- - - ---- ----------------------------------------------------------------------410 --_--- -- _ - --- --- --- - ----------------------------------------------------------------------------------------410
--- -- -- --- --- --_------------------T-�= - _____ --- __-_ ---_---_----------_---------------------------_----
400 =--__-_-____________________________--_---- _-----------_ — _�--I=� �_----�==_ _-_--_ —__-_ —__='___�____-__
-_----_---_-----------------------_---------------_---_---_ _ _ _ ____ _ __--_--- 237_--_-_- _
---------------------_---_----_--_------_- ____ _ -_--_--_---_-------_-----_---_-_---_--_----_---_------_--------_-_-_---
390____________________________________________________________________________------__-_____-_____-_----_-_-___-----__—_--___-__---_---___--_--____________--_—= W
W
--------------------------—_-----_---_--__--_---_--_-----_-_-------------—- - - - - ---_---_--_-----_------------_------------------------------__---_--------- _-----__---_--_-- 2
380 =________________ —_ —_--__—___ —_ —__—__________---____________________ __—_______--_--_--_--_—_____________________________ —_--____—_ —_ —_--_ —_ —____- W
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
370--------------—_________-_________________--—___-______— _- - - - - -_ —_ —__—__-__----__-__-__-__-__-__-__--___-_-_-_-__-_-___-____--_2
--------------------------------------------------------------------- - - ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3 6 0 - - --- - -------------- - - - - W
----_--_---_-_--_----_-_---_---_---_----------------------_-_-_--_---_-_------_-_------_------_-_-_-_---_--_-_---_---_------------------------_-----_-_-_-----_-_------_---_-------_-----_-------------_--_-
350 ___J
340 ____________________ —_ —_ —_---__--_ —__—_--_--_-_—______--______________________ _-----_--_-------------_-----_-_-----------_---_-_---------------_-----_------------------_-_- U
+4 =_ + _ ___--__-� - =-__ -_ -------0--_=+_- _________-- - =_ -_ =--__- = - __-__ --�_-====0+- -- ----
----- -
- T ------------- -- --- ----------------
330 =_---------- ------- ---_- -_____------------- - --__- --_--_-----___--_-_ _ _—_______
---- --- _ -- --- -
------- - - - - -- -__ -- ------ _ --- —__-' --__ 161 ---
�=0- -4-I-1== --- ---� -_--- - - - -
f 10=�� -1=
320 - -- T -- T__T T -,- � -- -- -- - -- -- --� -- --,- �----�--- -,----� -,- �rt --- -,- �� --- - -� -- -,--mot - 320
0 0 o O O O O O 0 O 0 0 0 0 0 0 0 0 0 0 O O O O o 0 o O O O O O O O O O O o O O O O O O O O O O O O O O O O O o O O O O O O O O O o 0 0 0 0-
0 0 0 o O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O O O O o 0 0 0 o O o 0 0 o O O O O O O O O O O o O O o O o o O O O O o o O O O O o o O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M It L0 (0 ti 00 M O - N M lzt L0 (0 1­ 00 6) O N M V LO C0 I- M M O N M ,I- LO (0 r-- W O O N M It LC) CO I,- M M O N M "t LO C0 I,- 00 M O N M "t LO (fl r-- W O
- - - - - - - - N N N N N N N N N CV M M co co co co M co M co I It It 't Rt It It It L0 Lf) L0 L0 Ln Lf) Ln Lf) Lf) (0 O C0 O C0 C0 Q0 CIO co O
WEST
Station
(feet)
C'
550
540
530
520
510
500
490
480
470
460
450
.0 u) 440
Jv 430
Lu
420
410
W
W
07
H
W
_Z
J
2
U
I—
Q
320
o
O
-
MW-8S/
MW-8BR:
8�!tl�
MW-7D/ 7BR
MW-7D: Mn 69
MW-7BR: Mn 210
NO
DATA
�
69
NS _
N S
-_-_-----------------0
--------------------
-------------------------
0000
__-___--___________-_ -__-- -_cro- __-
—_-__—_--____________ -_
_ _=-_________
6_81 --__----___
-- --�
__________________ _tom=-— —- -- --
------------------------ O =__----- - - - - --
--------------------- ___
-------------_--
—_—_ ---
_-----210 - - - -
_- --- --
I -I _-- — -r l -- __
-----------------------------
----------------------------------------------
---------------------------------------------
--------------------------------------------
-----------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------
---------------------------------------
----------------------------------------
---------------------------------------------
—_ -- --_ --_ -
+---- _♦_+
====_-
__ --L-- — --
-- _� -----
550
540
530
520
510
500
490
480
470
460
450
� J
440 0U)
>�
430 (D m
L1 v
420
410
400
390
380
370
360
350
340
330
320
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
M
LO
CO
Il-
00
M
CDN
M
'T
U)
C0
Il-
00
M
ti
r-
ti
ti
�
�
�
1-
00
00
co
00
co
00
00
00
00
EAST
SECTION C-C' - MANGANESE
FACING NORTH
SECTION C-Cy - MANGANESE
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
®
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
FN_S1 NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR MANGANESE IS 50 Ng/L.
rra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-62
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-62
GEOLOGIC CROSS SECTION C-C'
WITH MANGANESE

I CP_`CA1n
b.A
(n
w
tz
C�
n
V7
Q
(n
U
O
Q
w
C `3
LL_
n
Q
U
I
w
6
c6
n
u)
0
Q
C'3
cB
m
Q
0
T
L6
O
/
U
N
O
ui
N
0
I-
n
E.
a�
w
0
D_
WE
O
co
O
N
LO
O
0
B
620-
610-
600-
590-
580-
570-
560-
550
-
540
-
530
-
520-
510-
500-
490-
480-
C� 470-
460-
w
450-
440-
430-
420-
410-
400-
390-
380-
370-
360-
350-
340-
330-
320-
310-
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 C
460 � iv
450
440
430
420
410
400
390
H
w
LLI
07
CO
2
w
Z
J
U
300 300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 O O O O O O O O O O O O O O O O O O O O O O O O O o
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O 0 0 0 0 0 0 0 0 0 0 O O O O O 0 O O o O O O O O O o O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M V Lf) (0 1-- co O O N M � LO (D r— CO O O N CO 'zt Lf) Q0 � co M O N M d U) (0 ti M 0) O N M '�T LO CO f� CO M O N M � Lf) CO I-- M M O N M �t U) (0 ti M M O N CO d LO
N N N N N N N N N N co M M co M M co M M M It d' Rt I It d LC) Lf) LO Ln Lf) LO LC) Lf) LO Ln C0 C0 CO CO co CO C0 co CO CO Il- ti ti ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - STRONTIUM
Im
470
460
450
440
430
420
410
400
390
w
w
(n
LILI
H
Z_
J
U
I—
310
0116
70 C �1
u)
M 75
60 >
w
-
390
380
328 177
0 m
370
-
I'
\
113
360
---
-- —
---_
350
---- ---
�.
340
161
---------- ----
--- --_--_-_-
- - - --- --- __
--_-_-_-_—_-_-_-_-
320
----_--
-- --- -- ----
------------------------------------
-- --- —
---------
310
------------------------------------
--- --------
--
---
300
O O O O O O
O O O O O O
O O O O O
O O O O CD
O O O
O O CD
O O
CD
+ + + + + +
Cfl r-- 00 07 O
+ + + + +
N Cl) It LO O
+ + +
ti 00 M
+ +
O
r-- rl- ti 00 00
co co 00 00 00
co 00 00
O O
NORTHEAST
SECTION
B-B' - STRONTIUM
FACING NORTHWEST
FACING NORTHWEST
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
®
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. THERE IS NO ESTABLISHED 2L VALUE FOR STRONTIUM.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-63
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-63
GEOLOGIC CROSS SECTION B-B'
WITH STRONTIUM

I CP_`CA1n
w
tz
C�
n
V7
Q
cn
U
O
Q
LU
!Y
C `3
LL_
n
Q
U
I
C`3
W
6
(6
n
O
U)
O
Q
C'3
cB
m
Q
O
T
c�
L6
O
U
N
0
vi
a�
O
I-
n
E.
�
LU
O
0
rV
WE
LO
O
o
O
N
LO
O
0
MW-13BR
MW-13BR: Sr 389
BMW-3/ 3S
Sr 1790 BMW-3: Sr 1660
78
BMW-3S: Sr
rB
AB 3
0 N111111iffilill MIN
WIN =91 million
ism
C'
550
540
530
520
510
500
490
480
470
460
450
.0 u) 440
>
-
Jv o 430
Lu
420
410
W
W
2
W
_Z
J
2
U
I—
Q
320
o
O
J
-
MW-8S/ 8D/ 8BR
MW-8BR: Sr 372
MW-7D/ 7BR
MW-713: Sr 417
MW-7BR:
Sr 1020
NO
DATA
_-_-_-_--_-_-��-
NS _
4170 NS
-
-_--_ _-- -__-�
- - - - - - - - - - - - - - - - -
-
- ---L-I-�--off=-=
_/
_---\
- - - - - - - - - - - - - __ _ _
- - - - - - - - - - - - _ - _ _ _
- - - - - - - - - - - _ -- _-_ _-_ - -
372 -
_----------50---------------
--------- ---
-
----------
-_---- --- ---
---------_ ----- -----
---- --- ___
-_� -- --- ---_
---------------------
--
-1 _------I_1-1 _-----1-
_ ---
_____—___!_---_�___ _ --00
--------------------------------------------
-----------_-----------------
_----------------
-----------------
-----------------
---------------------------------------------
-----------------
_ --
-_- 1020 _-- --------------------
------------------
----- ------,�----
---------------------------
----------------------------
----------------------------
550
540
530
520
510
500
490
480
470
460
450
� J
440 Du)
430 Jy m
u1 v
420
410
400
390
380
370
360
350
340
330
320
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
M
�
LO
(0
I-
00
M
CD
M
�
U)
c0
Il-
00
M
ti
r—
ti
ti
r-
�
�
�
00
00
co
00
co
00
00
00
00
EAST
SECTION C-C' - STRONTIUM
FACING NORTH
SECTION C-Cy - STRONTIUM
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
CONCENTRATION CONTOUR
®
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
Ns NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. THERE IS NO ESTABLISHED 2L VALUE FOR STRONTIUM.
Lj
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-64
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-64
GEOLOGIC CROSS SECTION C-C'
WITH STRONTIUM

I =f%CAM
B
620
610
600
590
580
570
560
550-
540
530
520
510
500
490
480
00 470
460
W
450
440
430
420
410
400
390
380
370
360
350
340
330
320
310
MW-12S/ 12D
MW-12S: TDS 35
MW-12D: TDS 82
d4o
Q
f
�
\
\ BG-2
ABMW-4/ 4D/ 4BR
\ BG-2: TDS 370 =
ABMW-4: TDS 550
ABMW-4D: TDS 630
j
ABMW-4BR: TDS 300
\ w
35
\ O
/ 2DBR4 2DBRL
0 /
O
ABMW-2
ABMW-2BR:
ABMW-2BRL:
TDS 350
TDS 310
a
a O a O a�a
\
370
��
ASH BASIN
82 O � 0 0 0 �'� O O �
-�_-I ____- - - -- —
ACTIVE ASH BASIN
-----------------------------------------_-----�-------------- -� COAL
O0
__---_ -- - 4_ __- _ _--_-----__--_ _ --- =-__ \ _\I
- - Epp- - -_-_-_-
\ AS H
-
440
M
--_- - - _ __-_------_---_---_---_------_------_- — - — _ _ _ _ _ _ - — -__ - -- _ _ -- _ _-_- - ---_-_------_---_---_-_--
----_____------_-__----_-_______—_--_ --- ------_-__
_ --- -_ -_ �_
_— 550
_ ---_-_ -_- _�
_
_—_—___- _—___ _—______
_—_-_-_- _—_-_------_ _— _ _+ __ _—_-
_—_____- _—
--_----__-gy_-p
\
---_--__--_--__----_-_----____--_--_-
--------___--_---_---_-_----_----- -
-_--_----_---- ----a63-s0
`--1--_-
oao---------------------------------------------------------_-----_--------------_------------s----
��aa
ao=-�o-
--------- --------- --
----
—__---------_--_- - - - -
_ _ — - - - - -- -----
-
---
----------------------------------------------------------------------------------------------------------
-------- - - - - --_----�" _
- - - - - - - - — - - - - - - - —-_-_-_- -_-_- -_-_--_-_-_- -_- - — — - - - - — - - - - - — - - - - - - - - ----_-_- -_-_- -_-_- -_-_- _—_- -_-_-
- - - - - - - - - - - - - - - - - - - -
-11
-_-_- -_-_- -_-_- - - - - - - - - - - - - — _-_-_- -_- - - -
- -_
- - -_- -_-_- -_-_- -_-_- _—_- -_-_- -_-_- -_--_-_-_- - - -_-_- - — -
350
- - - — - - - - N
_ o
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
-- -------------------------------- --—______- -- -- -- --------------------------------
_ _ _ _ _ _ _ _ _
-- -- -- -- —= 300 -- —__
-------------------------------_____-
-- -- --- cn
------------- -----------__------------___--- —___--—___---___------------__----__----__----
--__----___--- __
-- — - - --------__-------__----___---
—_---__-__-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
--------------------- ----- ----------------------------------- -----—___----
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-------------------------------------------------------------------------------
—_-------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - T
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-------------------------------------
310=---- —_---- ---- -- —_---------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
---------------------------------------
- - - - - - - - - - - - - - - - -- 7 -7
- - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - -
--------------------
- -
300
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 o O O O O O O O O O O O O 0 0 0 0 O O 0 0 O O O 0 O O O O O O O O O O O 0 O O O O O O O O O O
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O O O 0 O O 0 0 0 0 0 0 0 0 0 0 O O O O O 0 O O O O O O O O O O O O O O O O O 0 O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO V 1 (0 � M O O N CO 1 O � 00 O O � N CO "t i (fl � 00 0) O N M d 1 (0 ti M 0) O � N M � i CO f� 00 M O N M � i CO � 00 0) O N CO "t 1 (0 ti M M O N CO d i
N N N N N N N N N N co M M M M M co M M M It � d' It I It It It d' i Lf) i In i In i i i In C0 C0 CO CO C0 CO C0 C0 CO CO I1- ti ti ti ti 1—
SOUTHWEST
Station
(feet)
SECTION B-B' - TDS
470
460
440
430
420
410
400
I—
W
LLI
3E
co
07
LLI
Z
J
U
Q
70 0
U)
c6 �
60 Q
W
- 4uu
J
w
t---w - 390
- Q 380
200 130 _ U m 370
360
- -_- - -- � 350
340
220 a _ � 130
_-------------- -_ 330
------------------- =-------------_—_--
_-�� 320
T -LI--� Ta—L—IZ_ 150--_------
T -�- �_�-_ r------Ti- --- -- --- 310
------------------------------------
------------------------------------
--- ------ -- -- --- 300
O O O O O O O O O O O O O O O O
O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + +
Cfl � 00 07 O N Cl) It i O ti 00 M O
r— � � ti 00 00 co co 00 00 00 co co 00 O O
SECTION B-B' -TDS NORTHEAST
FACING NORTHWEST
FACING NORTHWEST
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 C
460 >
450
440
430
420
410
400
390
W
W
07
U)
2
LU
Z_
J
3E
U
Q
300
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR TDS IS 500 mg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-65
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-65
GEOLOGIC CROSS SECTION B-B'
WITH TDS

I CP_`CA1n
b.A
(n
w
tz
C.3
n
v7
Q
U
O
Q
V)
LU
!Y
C `3
LL
n
L7
CIO
Q
U
I
C`3
W
6
/
c6
n
U)
0
Q
C.0
cB
m
Q
0
(CB
G
L6
O
/
N
O
vi
a�
LZA
0
I-
n
E
E.
LU
0
0
rV
WE
C Q ABMW-2BRL: TDS 310
550 0 LO
540 - 00 _
O ABII 3S Q
530 m ABMW-3: TDS 310 O
ABMW-3S: TDS 97 � MW-9BR
520 ABMW-1
ABMW-1: TDS 340
510
FL- I I I I I TF—I)
CW-1/ 1D
FGD POND
500
I ,
490
ASH BASIN —
480 -
- - -
470 o COAL ASH / �J NS v V V
460 - - -�� - - - �--,� 4��� _ 440 ---- 310 �%
----_--_- _---_----_ O O O O INS O O O O
='yQ-- O-�----------O-------O---�-------
-____—_____--_______- --------------------------------�-G----�-----�----O-
-------------------------- ---------------------------- -------nJ 440 — __M2 ---- _ —_
_-N8- ---
-
-_-_-_----_-_- ----_-_----_----- ----_- — - -_-_--__-__ ___—_-_-_______-_ _____-_______-______-____________-_ _ _=__ - —__ _ ____-___--_—- __-__-____
—- - ____________________- - - - - -_ _--____--_---
______—_—_—_—_--_—_—_________________________—____—____—_—_—_-_—____-
--
410— ---- ---------------_----------------_---------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------- - ------------ ----------------------------------------------------------------
_______________________________ ---- - ___________________________________________________
400---==-_-_--___--__-____________________________________--__-_____-___--_ 350====-—____-_______--_---_-__---_--_--__-__-__--____- --___----_-___-___--___-__-
390
---------------------------------------------------------------------------------------------------------------------------------------------------------------=- - - - - - -
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
360-=—_--_--____--__—_________--____-______—___-__--_--_-__—____—_--_-__ —___-—_—_- —_—_-___-_----_--___--- --__-- —___ —_-_--
--------------------------------------------------------------------------- ---------------------------------------------------------------------------------
---
-
350-===_________________________________________ —_____ ——___--_____-_______-- _--_-__--_-______—______- —_--_--_—___--_—__--_____- ---_-________-___----_____-__-
i�3
---_____10 ---___ - -- ----- --- --- ---- ---- ---- ---
330 - --- —__ --- ---
- --- --- --- --- ---- --- --- --- --- --- --- --- --- --- --- --- --- --- �-- --- ---_ --- -+ -�_�- --- --- - -- - --- --- -- -- -- --- --- _--_ --_ --- --- --- -=1-�r-7
320-- ---- ---- ---- --- --- --- --- --- --- --- -- -- -- --- -- --- -rt --- -----� ---- --- ----FF
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N CO ',I- ILD O 1,- 00 M O N M L0 (0 f— 00 6) O N M � Lo co 1-00 M O N M I- Lo (0 � w O 0 N M d LO 20 I- M M O N M "t LO CO ti 00 M O N M "t LO Q0 � 00 M
N N N N N N N N N N M M co M M co M M M M It It It Rt It It It L0 U') LO Lr) LO Lo LID LO Lo (0 O C.0 O Q0 Q0 Q0 Cfl (0 O
WEST
Station
(feet)
C'
550
540
530
520
510
500
490
480
H
W
U)
U
13E
.0u)
I.
u)
cu2i W
> �- Z
U
a
400
390
380
370
360
350
340
330
2
0
Q
O
I
LL
qJ
IF
MW-8S/ 8D/ 8BR
MW-7D/ 7BR
MW-7D: TDS 340
MW-8BR: TDS 480
MW-7BR: TDS 260
NO
DATA
_
_
340 O N S
------------ - - -
__—
--_ --- ---
-_480--_---
_
_
— — — — — — — — — — — — — —
- _-_---_--_—____ _-_____
— — — — — — -- N7 — — — — — — — -
- - - -- - - - -- --_+ -=T
260 -___ _
---------------------------------------
---------------------------------------------
--------------------------------------------
--------------------------------------------
-----------------------------------------
----------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
-_-�
= ____=__________-____=_______-____-==_-
— -- — — —
— — 1 — --_ _ — _ 7
550
540
530
520
510
500
490
480
470
460
450
� J
440 0 U)
>�
430 06
w=
420
410
400
390
380
370
360
350
340
330
320
3 0
o
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
o
O
O
O
O
O
O
CDO
CD
O
O
O
O
O
CD
O
O
O
O
O
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
co
Lo
(fl
�
00
0')
O
N
M
't
LC)
co
fl-
00
M
�
ti
r—
�
ti
00
a0
0D
co
M
co
M
0o
00
M
EAST
SECTION C-C' - TDS
FACING NORTH
SECTION C-C' - TDS
FACING NORTH
550
540
530
520
510
500
490
70
60
50
40.2cJn
�2
ca
>�
30 W
LU=
H
LU
LU
CO
U)
2
H
LU
Z_
J
U
H
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
1COALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (JUNE 17, 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
Ns NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. 2L VALUE FOR TDS IS 500 mg/L.
WnT(erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-66
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-66
GEOLOGIC CROSS SECTION C-C'
WITH TDS

I CP_`CA1n
b.A
(n
w
tz
C�
n
Q
(n
U
O
Q
/
w
C.3
LL_
n
Q
U
I
w
6
n
U)
0
Q
C.0
cB
m
Q
0
T
L6
O
/
U
N
O
vi
N
0
I-
n
E.
a�
LU
i
rV
WE
00
O
co
O
N
LO
O
ti
0
B
620-
610-
600-
590-
580-
570-
560-
550-
540-
530-
520-
510-
500-
490-
480-
p 470-
460-
W
450-
440-
430-
420-
410-
400-
390-
380-
370-
360-
350-
340-
330-
320-
310-
300-
ones
moll
MINI
Elm Idi
14
I F I I 1 11
ACTIVE ASH BASIN
Zo
MUM
O o o O 0 O O O o O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 0 O O O O O O O O O O O O 0 0 O 0 O O 0 0 O O O O O O O O O O O O O O O O O O O O O O O o 0 0
O 0 O O 0 O O O O O 0 0 0 0 0 0 0 0 o O 0 0 0 0 0 0 0 0 0 0 O O O O O O O o O O o 0 0 0 0 0 0 0 0 o O O O O O o O O O O O O O O O O O O O O O O O o O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O N M V LO Cfl I` M O O N CO LO O r— 00 O O N CO '�t LO Cfl � M M O N M d LO Cfl ti M M O N M � LO CO I— 00 M O N M � LO CO I-- M M O N M �t LO Cfl ti M O O N M d LO
N N N N N N N N N N co M co M M M co M co M It d I It It It It LC) Lf) L0 Ln LO Ln LC) LO L0 Ln CO Cfl CO CO Cfl CO CO Cfl CO CO Il ti I` ti ti ti
SOUTHWEST
Station
(feet)
SECTION B-B' - VANADIUM
470
460
440
430
420
410
7t ,
470 ) u)
460 > a)
m
W
� J
w
w 390
� 2 =
U) - z 380
(If ry
<0.3 <0.3 U 00 370
<0.30.3
360
-350
---- �. 340
0.594-- 0.678
----------------� 330
---_-------_---- -- _ ----
— —- - -- 320
- -_- — - -_ _— - -_-_- -_ —_- -_- - 1.06 - 1.0 _—_- - -
----------------------------- — ---- 310
----- - - - -- 300
O O O O O O O O O O O O O O O O
O O O O O O O O O O O O O CD O O
+ + + + + + + + + + + + + + + +
Cfl r-- 00 07 O N M It LO O I— CO M O
ti co aD 00 00 00 00 O O 00 00 O O
NORTHEAST
SECTION B-B' - VANADIUM
FACING NORTHWEST
FACING NORTHWEST
620
610
600
590
580
570
560
550
540
530
520
510
500
490
480
470 p
cu.:f
460 > Z
W
450
440
430
420
410
400
390
LU
LU
co
2
LU
Z_
J
3E
U
Q
300
GRAPHIC SCALE
0 300
IN FEET
HORIZONTAL: 1"=300'
0 30
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
ICOALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. IMAC VALUE FOR VANADIUM IS 0.3 pg/L.
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-67
UKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-67
GEOLOGIC CROSS SECTION B-B'
WITH VANADIUM

I CP_`CA1n
b.A
(n
w
tz
C.3
n
v7
Q
U
O
Q
V)
LU
!Y
C `3
LL
n
L7
Q
U
I
C`3
W
6
c6
n
O
U)
Q)
Q
C'3
cB
m
Q
O
T
L6
O
/
N
O
vi
a�
O
I-
n
E.
�
w
O
0
rV
WE
MW-13BR
MW-13BR: V <0.3
ABMW-2/ 2BR/ 2BRL
ABMW-2: V 1.42
ABMW-2BR: V 0.315
ABMW-2BRL: V 0.45
C Q
550 550
540 - = 540
cn U) ABMW-3/ 3S o
530 m ABMW-3: V 0.603 ap 530
ABMW-3S: V <0.3 MW-9113R
520 ABMW-1 520
ABMW-1: V 98.7
510 FGD POND CW-1/ 1D 510
500 500
490 � ASH BASIN 490
480
O O _ O �O^
470 470
N �� �� � � 98 7 COAL ASH � � �J �� v V V
s
460-- _ �� _ -_ - - - - -1� O i 1.42 0.603 O O O O O O O 460
450 _-_ _-_-__--_---=-C�a\/O �0��---OOOOOQOO— NS OO�G �,OO 450
c-- ---------------------- =--------------------------------------------- ro------------------------------ -------------------------------------------
�co 440 ------------------------------- <0.3�r-------------------------------------------------
------- 00 - -
--------------------------------------- - �— �� +� m
-----------------------------------------------------------
�=430---------------------------------- -- - - �� —------------------------------------------------------------- 430_�,
w-- - — =_-- ___---__--__-- ��-- --- w�
00 O - O �_ -------------------------------------------_---------------_------_-------
420==---------------------------------------------------------"-�- n - - - - - ��.
________________________ —_ -- _____-_______ --____ ——___--_-____---�_ - - - -__ —____—________ —___—__-___--_-__--_____-__--__—___--__—___-__--_____-
410 =______—___________ —____ —____ —_ —________________________________ _- ---_------------------------------------------------------------------------------410
-_------_---------_----_---------------------------------------------------------- -- --- ---- -----------------------------------------------------------------------
- --- _ --- _---_ - _ --- _ ---_- ---- - --- _ -_- - - - '- -_ _ --_- _ -- ---- - -- - -- -- _ --_- -_-- _ -- -_ _ -_-
___________ 0.315 - ___ —_ —_—_--_--_____________________________ —_ —_—___-_-_ —_ —_ —_ —____-
----------------------------------------------------------------------- --- --- _-----------------------------------------------------------------------------
---------------------------------------------------------------------- ------------------------------------------------------------------------------
LU
390---------------------------------------------------------------- - - - ---_-_---------_------_---------------_--------------------- _-------------- -_ -- -- W
_---- _-_--- ___---- __--- --------------- _ - - -- _-_----___----___--- _ --- r - _-=_----__----_--_-----___---=-_---_-__----___---=-----_-=---_-__----__----_ 2
-------------------_------------------------_----------_-------------------- -0.3__ ---_------_-------_------------------------------------_---------------_------_-------
380-_____________________—____-_—_-__—_____--____—______________—_--__________________________ - - —_--__ —__--_—_--_--___________________________________—_-_--__—_______ _--
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
370------------------------------------------------------------------------------------------------------------------------------------------_-------- _-------- 2
-----------------------_------_-------_---------------_---------------_------_-_------_---------------_---------------_------_---------------------_-------_---------------_----
360------------------- —_----—_----_--_-----__----__-_---_-__----__----------_- ----_—_----__-----_-_---_-__------_---_-__----___---—_----_-----_-__---__----- W
--------------------------------------------------------------------------- -------------------------------------------------------------------------------------
350-===_____________________________—____-__--___-____----__--—__-__-__-__-- _--_-__--_-______—______- —_--_--_-___--_-__--_____----_-___—___-___--_-_--____-- J
----- --- --- --- --- --- --- -- --- ------------- --- --- -- --- --- --- --- --- --- --- ---
_________________________—____---_--___--__________-_-__________-_-__--_-_-________________________-_-- _ - _ ________--__- _- ()
340----_------- - H
-- --- --- --- ___ ___ __
330-__-- --- - _-- _-- --- --- --- 0.45 --- --- --- --- --- --- --- --- ---- --- --- _ _
-- O -_ --- ___ --- O = --- --- --- O -- --- --- --- --- --- -- ---- --- _ --- - O --- ___ r -- ---� -- _ -- OT-�-
320-- ---- ---- ---- --- --- --- --- --- --- --- --- -- -_ --- _- --- -- --- -rt --- -----� ---- --- - ---�T -320
0 0 o o O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
O — N CO ',I- LO O rl- 00 p') O N M LO (9 fl- 00 6) O N M "t Lo CO fl- 00 M CD M ,I-Lo CO � W O CD N CO ',I-LO CO Il- 00 O O N CO U') CO I— 00 6) CD M "t LO Cfl � 00 M
N N N N N N N N N N M M co co M co co co M co d d LO Ln Lo LO LO LO LO LO Lo Cfl O CO (0 Cfl Cfl Cfl Cfl Cfl O
WEST
Station
(feet)
C I
550
540
530
520
510
500
490
480
470
460
450
c�
u) 440
430
W�
420
410
W
W
(n
(n
2
W
Z
J
2
U
a
2
o
Q
0
-
MW-8S/ 8D/ 8113111
MW-8BR: V 0.432
MW-7D/ 7BR
NO
DATA,
MW-7D: V 0.757
MW-7BR: V <0.3
OoOo�
---7-
NS _
_- _ _ -__ _��- 0.757
NS
-
_ _ - ____-__ - _ __-______ - _-- -�
---------------------
---------------- -
oO oO
_ _----- _ ___ _-___ —_ =-01
- -
____-- --
--------------- - ---
— — — — — — — — — — — — — — — — —
- - 1
O _ ---� —_- -
-T1--I- --
-(\3 ----__--_ —_ - --
— —I— — — %� — — — — — — — — — — — — —
<0.3=
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
--------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
----------------------------------------------
---------------------------------------------
--------------------------------------------
---------------------------------------------
-----------------------------------
--------------------------------------------
550
540
530
520
510
500
490
480
470
460
450
440.0co
430
W=
420
410
400
390
380
370
360
350
340
330
320
3 0
O
O
O
O
O
O
O
o
O
O
o
0
o
O
0
o
O
0
o
O
O
O
O
O
o
O
O
O
O
O
o
0
0
o
O
O
0
0
o
O
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
O
N
CO
LO
(fl
ti
CO
M
O
N
M
It
U)
(9
f—
00
M
ti
�
�
�
�
ti
co
M
0o
co
0o
co
M
00
00
M
EAST
SECTION C-C' - VANADIUM
FACING NORTH
SECTION C-C' - VANADIUM
FACING NORTH
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
1COALASH
TRANSITION ZONE
-- _ - BEDROCK
SOIL/FILL
SAPROLITE
ALLUVIUM
®
CONCENTRATION CONTOUR
CONCENTRATION CONTOURS
DASHED WHERE INFERRED
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
Ns NOT SAMPLED
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN WITH
CONCENTRATION
(micrograms per liter)
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY
BOUNDARY DATED MAY 19, 2015 WAS OBTAINED FROM
WSP OF CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY
AND COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG
TOPOGRAPHY IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED.
4. IMAC VALUE FOR VANADIUM IS 0.3 pg/L.
�3
erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-68
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-68
GEOLOGIC CROSS SECTION C-C'
WITH VANADIUM

i i= =Nn
PRW-6 (MY-5)
PRW-6 (MY-5): pH 7.1 / As <5 / B <50 / Cr(VI) <0.03 / Cr(TOT) <5 / Co <5 / Cu 41.9 / Fe 953 / Pb 2.7 / Mn 517 / TDS 349 / V <10
A
550
540-
530-
520-
510-
500-
o J 490-
480-
N�
w ' 470-
460-
450-
440-
430-
420-
410
CD O CD CD O O O CD CD CD O CD O CD O O CD CD O CD O O O O O O O O O CD CD CD CD O
CD O O CD O CD CD CD CD CD O CD O (D CD O O CD O (DO O O O O O O O O O CD CD CD CD CD CD CD
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
CD N � (0 I'_ M D (M It ) O N M d- CD M O O ( N M � (f') CD II M CD� N M m � (9
N N N N N N N N N N N co M M co M M co
NORTHWEST
Station
(feet)
DW-3 (MY-3)
DW-3 (MY-3): pH 5.6 / As <0.5 / B <50 / Cr(VI) 0.13 / Cr(TOT) 0.6 / Co <0.5 / Cu 132 / Fe <50 / Pb 5.9 / Mn 8 / TDS 226 / V <1
MW-14BR: pH 6.7 / Sb <1 / As <1 / B <50 / Cr(VI) NS / Co <1/ Fe 98 / Mn 199 / TDS 180 / V 2.45
ABMW-3/ 3S
MW-10BR
MW-1013R: pH 6.1 / As <1 / 13,50 / Cr(VI) <0.03 / Co <1 / Fe 33 / Mn 103 / TDS 300 / V 1.68
ABMW-3: pH 7.0 / As 79.8 / B 1800 / Cr(VI) <0.005 / Co <1 / Fe 26200 / Mn 1210 / TDS 310 / V 0.603
ABMW-3S: pH 5.4 / As 1.35 / B 1220 / Cr(VI) <0.005 / Co 3.42 / Fe 4340 / Mn 531 / TDS 97 / V <0.3
CW-5 -
p PLANT
Q
MW-5BR
MW-5BR: pH 7.2 / As <1 / B <50 / Cr(VI) NS / Co <1 / Fe 9690 / Mn 1880 / TDS 360 / V <0.3 Q
ASH BASIN
COAL ASH
-__ -- -
NODATA
--- _-- __ ----- -- ----- -- ----- -- - )<_�
1
Id
---- - - ---- -- ----- - --- - - --- J ---- -- -'--- L -- --- --- --'- -- --ii --- -- - - -- - -- - ---- -- - ---- -- - ---- -- - ---- - -'--'- -- ---- - -- ---- - -
, , , , , , , , , , , , , , ,
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
+ + + + + + + + + + + + + + + + + + + + + + + + + + + + +
r1_ 00 m O N CO LO Co r­ 00 M O N CO U) (D 1­ 00 D) O - N M t LO
M co co It I- It It It 'T It U) � LO LO LO LO LO � LO LO (D (0 (D CD CD (D
SECTION A -A'
FACING NORTHEAST
7
1
-540
-530
-520
-510
-500
-490 J
oU)
-480 m :2
-470 w
-460
-450
-440
-430
-420
----- ---- -- - -- - 410
O O O O O O O
O O O O O O r1_
CO r- co m O
(D co (D CD r- r- r-
SOUTHEAST
GRAPHIC SCALE
300 0 300 600
IN FEET
HORIZONTAL: 1"=300'
30 0 30 60
IN FEET
VERTICAL: 1"=30'
NOTE: 10:1 VERTICAL EXAGGERATION
COAL ASH
TRANSITION ZONE
_ _ =
BEDROCK
REGOLITH
SOIL/FILL
SAPROLITE
ALLUVIUM
WATER LEVEL (DECEMBER 2015)
SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
ABMW-2BR: WATER ANALYTICAL RESULTS IN pg/L
BORING SYMBOLS
WELL SCREEN
SOURCES:
1. THE TOPOGRAPHY SURVEY DATA WITHIN THE PROPERTY BOUNDARY
DATED MAY 19, 2015 WAS OBTAINED FROM WSP OF
CARY, NORTH CAROLINA.
2. SELECT TOPOGRAPHIC ADJUSTMENTS BASED ON SITE SURVEY AND
COMPARISON TO AERIAL PHOTOGRAPH.
3. 2015 LITHOLOGY INFORMATION OF SOIL AND WELL LOG TOPOGRAPHY
IS FROM SYNTERRA.
4. GEOLOGIC INFORMATION FOR BORINGS AND MONITORING WELLS
INSTALLED PRIOR TO 2015 TAKEN FROM S&ME (2010) AND
QUANTEX (2008).
NOTE:
1. CROSS SECTION LOCATIONS SHOWN ON FIGURE 2-1.
2. ROUND 3 WATER LEVELS WERE COLLECTED BY SYNTERRA IN
DECEMBER 2015.
3. ROUND 4 (JANUARY 2016) DATA DEPICTED EXCEPT FOR
MY-03 (AUGUST 19, 2015) AND MY-05 (MAY 4, 2015).
WnT(erra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 6/12/2016
CHECKED BY: J. WYLIE DATE: 6/12/2016
PROJECT MANAGER: J. WYLIE
LAYOUT NAME: FIGURE 1-69
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 1-69
GEOLOGIC CROSS SECTION A -A'
WITH ANALYTICAL RESULTS

CPOff k .. 1off
R 4 R 4
.e--- Ca —
Lip
synTerra
A-�O%
L,
�P
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www. synterracorp.CDm
DRAWN BY: B. WILKER DATE: JUNE 2016
PROJECT MANAGER: J. WYLIE
LAYOUT:
P:\Doke Energy Progress.1026\105. Mayo Ash Basin GW Assessment
Plan\19.EG_CSASUP\Stet,sbcs\Piper Diagrams\Piper Diagram- Alluvial,
Saprolite, and Transition Zone
Legend
L MW-3
❑ MW-16S
V ABMW-3S
;> MW-12S
V ABMW-4D
C -2
6 MW-7D
p MW-12D
❑ MW-16D
Notes:
Shaded
= Beneath Ash Basin
Brown
= Alluvial/Saprolite
Green =
Transition Zone
FIGURE 1-70
PIPER DIAGRAM — ALLUVIAL, SAPROLITE
AND TRANSITION ZONE
(JANUARY 2016)
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

4
+� 80%
60%
x4
4096
1,, �
2096 [a
CIO 0 S. 100.
R -1 R R
,tip
synTerra
O
-Cl
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
www.synterracorp. com
DRAWN BY: B. WILKER DATE: JUNE 2016
PROJECT MANAGER: J. WYLIE
LAYOUT:
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW
Assessment Plan\19.EG CSASUP\Statistics\Piper
Diagrams\Piper Diagram- Bedrock
0 10
6 0 % 0
F
40%
20%
Legend
T ABMW-2BR
T ABMW-2BRL
V ABMW-4BR
BC-1
L CW-2D
• MVV-2
Zs M -3BR
L MW-4
MW-5BR
❑ MW-7BR
S MW-8BR
<? MW-10BR
❑ MW-11 BR
L MW-13BR
MW-14BR
S MW-16BR
Notes:
Shaded = Beneath Ash Basin
FIGURE 1-71
PIPER DIAGRAM - BEDROCK
(JANUARY 2016 )
MAYO STEAM ELECTRIC PLANT
ROXBORO, NORTH CAROLINA

1000
900
800
700
— — — — — — — — — — — — --
600
500
400
0
c
300
00
200
100
0
12/1/2010 4/14/2012 8/27/2013 1/9/2015 5/23/2016
Sampling Date
-CW-2 0 CW-2D — — — 15 NCAC 02L Standard
600
500
400
:
300
c
° 200
L
100
0
12/1/2010
1200
1000
J
"to' 800
600
c
m
c 400
m
200
0
12/1/2010
4/14/2012 8/27/2013 1/9/2015 5/23/2016
Sampling Date
—�CW-2—M—CW-2D — — — 15 NCAC 02L Standard
�T CW-2 Non detect
4/14/2012 8/27/2013 1/9/2015 5/23/2016
Sampling Date
�CW-2 fCW-21) — — — 15 NCAC 02L Standard
10/5/2017
10/5/2017
10/5/2017
148 RIVER STREET, SUITE 220 FIGURE 1-72
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] TIME VERSUS CONCENTRATION
wnterr.com41P CW-2 AND CW-2D
DRAWRAW B.WIN BY: B. WICKER DATE: JUNE 2016
symTerra PROJECT MANAGER J. WYLIE
LAYOUT: MAYO STEAM ELECTRIC PLANT
P:\Duke Energy Progress. 1 026\1 05. Mayo Ash Basin GW ROXBORO, NORTH CAROLINA
Assessment Plan\19.EG_CSASUP\Statistics\Time Series

800
700— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
600
500
400
300
0 200
mo 100
0
6/23/2015
8/12/2015 10/1/2015 11/20/2015 1/9/2016 2/28/2016 4/18/2016
Sampling Date
MW-16S Non detect --iii— MW-16D Non detect
$ MW-16BR Non detect — — — 15 NCAC 02L Standard
10000
1000
J— — — — — — — — — — — — — — — — — — — — — — — — — --------
100
c
0
L
10
1
6/23/2015 8/12/2015 10/1/2015 11/20/2015 1/9/2016 2/28/2016 4/18/2016
Sampling Date
�— MW-16S MW-16D ---A— MW-16BR — — — 15 NCAC 02L Standard
1000
100
J
— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
2
G1
N
c 10
to
hq
C
C�
C
1
6/23/2015 8/12/2015 10/1/2015 11/20/2015 1/9/2016 2/28/2016 4/18/2016
Sampling Date
MW-16S —M MW-16D f MW-16BR — — — 15 NCAC 02L Standard
148 RIVER STREET, SUITE 220 FIGURE 1-73
GREENPHONE 14-421-SOUTH CAROLINA29601 TIME VERSUS CONCENTRATION
PHONE [phone]
www.synterracorp.com MW-16S, MW-16D AND MW-16BR
DRAWN BY: B. WILKER DATE: JUNE 2016
synTerr PROJECT MANAGER J. WYLIE MAYO STEAM ELECTRIC PLANT
LAYOUT:
P:\Duke Energy Progress. 1 026\1 05. Mayo Ash Basin GW ROXBORO, NORTH CAROLINA
Assessment Plan\19.EG_CSASUP\Statistics\Time Series

800
700--------------------------------------------
600
500
J
400
300
0
c 200
m
100
0
6/18/2015
1200
1000
800
J
600
° 400
200
07
6/18/2015
8/7/2015 9/26/2015 11/15/2015 1/4/2016 2/23/2016 4/13/2016 6/2/201
Sampling Date
—MW-12S Non detect " MW-12D Non detect — — — 15 NCAC 02L Standard
8/7/2015 9/26/2015 11/15/2015 1/4/2016 2/23/2016 4/13/2016 6/2/2016
Sampling Date
MW-12S MW-12D — — — 15 NCAC 02L Standard
800
700
600
500
J
bb 400
ZL
w 300
200
ra
c 100
t� ---------------------------
g 0
6/18/2015 8/7/2015 9/26/2015 11/15/2015 1/4/2016 2/23/2016 4/13/2016
Sampling Date
MW-12S —0— MW-12D — — — 15 NCAC 02L Standard
6/2/2016
148 RIVER STREET, SUITE 220 FIGURE 1-74
410 GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] TIME VERSUS CONCENTRATION
www.synterracorp.com MW-12S AND MW-12D
DRAWN BY: B. WILKER DATE: JUNE 2016
synTerra PROJECT MANAGER J. WYLIE MAYO STEAM ELECTRIC PLANT
LAYOUT:
P:\Duke Energy Progress. 1026\105. Mayo Ash Basin GW ROXBORO, NORTH CAROLINA
Assessment Plan\19.EG_CSASUP\Statistics\Time Series

10000
■
1000
-----------------------------
100
c
10
0
m
6/17/2015 8/6/2015 9/25/2015 11/14/2015 1/3/2016 2/22/2016 4/12/2016
Sampling Date
ABMW-2BR Non detect —6—ABMW-3S
ABMW-4BR Non detect — — — 15 NCAC 02L Standard
100000
10000
1000
00
-- ----
c
0 100
10
1
f ABMW-4D
6/17/2015
8/6/2015 9/25/2015
11/14/2015 1/3/2016 2/22/2016 4/12/2016
Sampling Date
ABMW-2BR
--11--ABMW-3S —■—ABMW-4D ABMW-4BR --- 15 NCAC 02L Standard
10000
1000
J
100
N
H
GJ
t0a
10
oa
c
ea
1
6/17/2015
8/6/2015 9/25/2015
11/14/2015 1/3/2016 2/22/2016 4/12/2016
Sampling Date
ABMW-2BR #ABMW-3S fABMW-4D
ABMW-4BR — — — 15 NCAC 02L Standard
FIGURE 1-75
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
TIME VERSUS CONCENTRATION
PHONE terrac 1-9999
rp.com
www.synterracorp.com .com
ABMW-2BR, ABMW-3S , ABMW-4D
DRAWN BY: B. WILKER DATE: JUNE 2016
PROJECT MANAGER J. WYLIE
AND ABMW-4BR
synTerm
LAYOUT:
MAYO STEAM ELECTRIC PLANT
026\1
AsseseEnergy Progress. 19.EG—CSA UP\St05. ayo Ash Basin GW
Assessment Plan\19.EG_CSASUP\Statistics\Time Series
ROXBORO, NORTH CAROLINA

I
A.
pap
NPDES OUTFACE
002 FI
1s
lb
AL
I g
rf i
FGD PONDS {: • r
f
AL
r
a
Il _
® 1`
F LEGEND
ii� EXISTING MONITORING WELL
'e PROPOSED MONITORING WELL CLUSTER
IL ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
• NOTES:
2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS
GEOSPATIAL DATA GATEWAY
(https://gdg.sc.egov.usda.gov/GDGOrder.aspx).
DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
i- �
*7 +! rti * GRAPHIC SCALE
a �.- • +I*4 150 75 0 150 300 FIGURE 5-1
_ IN FEET PROPOSED ADDITIONAL
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601 GROUNDWATER MONITORING WELLS
PHONE terrac rDcom MAYO STEAM ELECTRIC PLANT
M 1-9999
wwws nterracor .com
C�/ ■M■ ^r■Y DRAWN BY: B. YOU NG DATE: 06/27/2016
✓� ■T`■ ra PROJECT MANAGER: J. WYLIE ROXBORO NORTH CAROLINA
V
CHECKED BY: J. WYLIE
P:\Duke Eneray Pro ress.1026\00 GIS BASE DATA\Ma o\Ma Docs\CSA Su lement\Ma o - Figure 5-1 - Proposed Additional Groundwater Wells. mxd