NC0038377_Figure 10-2-Site Layout with 2L Exceedances-Surficial Wells_20150902

cn
w
A
♦ `i
l .
e MW-12S3
s
*7 �^ CONSTITUENT RESULT
Co 1.09
.' . �..—..—.. Mn 267
Ak
pH 5.7
. J V 0.403
h
J
SRA 500 gQ
SR.1329
!A .. SR lh;.-' SK-13z8
'4po SQ'028 SR.1 gt , -
s1,7so?
MW-03'
CONSTITUENT
RESULT
B
847
Mn
880
pH
5.7
ACTIVE
ASH BASIN
NIP"
MWA 6S3
CONSTITUENT I RESULT
Co 4.32
Fe 860
Mn 260
pH 6.0
V 0.303
ABMW-03S3
CONSTITUENT
RESULT
B
1100
Co
3.98
Fe
2630
Mn
EZI
pH
♦ , . ♦ , u1
r �
2jjSR-!i501
o=
sp
7sp
I
11~�
1
r-
L r•
,J
LEGEND
MONITORING WELL
Q ACTIVE ASH BASIN
ASH BASIN COMPLIANCE BOUNDARY
r: — �� DUKE ENERGY PROGRESS MAYO PLANT SITE BOUNDARY
-—-— DITCH
STREAM
North Carolina 2L Standards
Constituent
Abbreviation
Upper Limit
Units
Lower Limit
Antimony5
Sb
1
µg/L
---
Arsenic
As
10
µg/L
---
Boron
B
700
µg/L
---
Chloride
CI
250
mg/L
---
Chromium
Cr
10
µg/L
Cobalts
Co
1
µg/L
Iron
Fe
300
µg/L
---
Manganese
Mn
50
µg/L
---
pH
pH
8.5
S.U.
6.5
Selenium
Se
20
µg/L
---
Sulfate
SO4
250
mg/1-1
---
Thalliums
TI
0.2
µg/L
---
Total Dissolved Solids
TDS
500
mg/L
---
Vanadium5
V
0.3
µg/L
---
NOTES:
CONCENTRATIONS SHOWN ARE FROM THE APRIL 2015 SAMPLING EVENT.
Z CONCENTRATIONS SHOWN ARE FROM THE MAY 2015 SAMPLING EVENT.
3 CONCENTRATIONS SHOWN ARE FROM THE JUNE 2015 SAMPLING EVENT.
4 CONCENTRATIONS SHOWN ARE FROM THE JULY 2015 SAMPLING EVENT.
5NORTH CAROLINA 2L INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC)
6SITE AERIAL ORTHOPHOTOGRAPHY IS DATED APRIL 17. 2014. IT WAS OBTAINED FROM WSP.
7ADDITIONAL OFFSITE AERIAL ORTHOPHOTOGRAPHY IS DATED 2012. IT WAS OBTAINED FROM THE NC
CENTER FOR GEOGRAPHIC INFORMATION AND ANALYSIS AT (http://services.nconemap.gov/)
8 PARCEL BOUNDARY WAS OBTAINED FROM THE NC CENTER FOR GEOGRAPHIC INFORMATION AND
ANALYSIS AT (http://services.nconemap.gov/)
9 DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE
SYSTEM FIPS 3200 (NAD83I2011).
GRAPHIC SCALE
1,000 0 1,000 2,000 3,000 4,000 5,000
(IN FEET)
141P
synTerra
148 RIVER STREET, SUITE 220,
GREENVILLE, SC 29601
864421-9999
www.synterracorp.com
4 DUKE
ENERGY
PROGRESS
MAYO STEAM ELECTRIC POWER PLANT
10660 BOSTON RD
ROXBORO, NORTH CAROLINA27574
FIGURE 10-2
SITE LAYOUT WITH 2L EXCEEDANCES
SURFICIAL WELLS