DE MAYO-FIGURE 11-25

ti
N
ri
LO
ri
O
N
;
N
r -I
BOSTON ROAD
(US HWY. 501)
SB -4/ MW-10BR
A MW-14BR /�
550 m /"� 550
ABMW-03/ 03S o
540 CW -05
❑Q PLANT � 540
530 0 530
MW-05BR J
520 W 52
510 _ _ _ _ --- 5 0
500-- _-- _ — �` 500
490 _____ ------ ASH BASIN ��� 490
—__—___----- _�� Tim _ ���� �i -- _--- 480
480
470 _-- � - - _- - - - a COAL ASH / /� �= � _ — - 470
_N�=----____- ___---_
460 ______________ __ —_—__________—=��O�O�O���� >—__-----------------��� ----______— <50 ---_ 460
____________ __ _______ —_ —_—___—__ ��� �i��-------------- X1(10=--- ® __-_ ______
450 -__-__ —_-___ _______ —____ —_____ —__---- l®� �_____________ -____- 450
440-_�O��O O�=�_----�-_---_--------_------_---- -------- -_------_---- -_ -- --- --_-
-
440
—______ - _________________--'�--- ------___--_--_
____
430 430
--_-_-_-_--_--------------_-_-_-_----------------------------_-_--_--_-_-_-_-_ ______________
—___ __
420____-__-_—_—_--_--__________________________________—__—___-____________-420
-------------------
-------------------
-
------------------------------------------------------------------------ 1--����-- ----------------------------------------------
410 410
NORTHWEST
SECTION A -A'
FACING NORTHEAST
MAYO LAKE
SOUTHEAST
C J
o�
M2
m�
w=
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
I Fr,FNn
COAL ASH
TRANSITION ZONE
BEDROCK
oEcni iTu
SOIL/FILL
SAPROLITE
® ALLUVIUM
CONCENTRATION CONTOUR
®� CONCENTRATION CONTOURS
DASHED WHERE INFERRED
HASH MARKS POINT TO
DECREASING CONCENTRATIONS
T SURFICIAL WATER LEVEL
TRANSITION ZONE WATER LEVEL
BEDROCK WATER LEVEL
^� FRACTURED/OXIDIZED ZONE
OBSERVED IN ROCK CORE
NS NOT SAMPLED
ABMW-02BR: WATER ANALYTICAL RESULTS IN pg/L
45'-45.5' SOIL TOTAL ANALYTICAL RESULTS IN mg/kg
BORING SYMBOLS
SOIL SAMPLE
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. 2L VALUE FOR BORON IS 700 pg/L.
Vnierra
148 River Street, Suite 220
Greenville, South Carolina 29601
864-421-9999
www.synterracorp.com
DRAWN BY: C. NEWELL DATE: 8/5/2015
CHECKED BY: J. WYLIE DATE: 8/5/2015
PROJECT MANAGER: K. WEBB
LAYOUT NAME: FIGURE 11-25
DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA
FIGURE 11-25
GEOLOGIC CROSS SECTION
A -A'
WITH BORON