NC0039586_2006 Environmental Monitoring Report_20080206

� a ,
wCoo 395S6
�� Progress Energy
FEB 0 6' 2000
Mr. AIN4
Division o
N. C. Dep,
1617 Mail
Raleigh, 1\
Subject:
�RFcF��
o� F� p8 F®
azt&J
hiek, Director S
Vater Quality
ht of Environment and Natural Resources
;rvic Center
27699-1617
SERIAL: HNP -08-012
Harris Nuclear Plant 2006 Environmental Monitoring Report
Dear Mr. Klimek:
Enclosed are three copies of the Harris Nuclear Plant 2006 Environmental Monitoring Report.
The report summarizes the results of water quality monitoring conducted,by Progress Energy
Carolinas, Inc. at the Harris Reservoir during 2006. During 2006, operational effects of the Harris
Nuclear Plant on the water quality and aquatic life continued to be minimal.
Please contact Mr. Bob Wilson at [phone] if you have any questions concerning this
report or if you have a need for additional information.
Sincerely,
Christopher L. Burton
Director — Site Operations
Harris Nuclear Plant
CLB/mgw
Enclosure
c: Mr. D. Goodrich — NCDWQ
Mr. B. Curry — NCWRC
Ms. C. Sullins - NCDWQ
Progress Energy Carolinas, Inc.
Harris Nuclear Plant
P. 0. Box 165
`� New Hill, NC 27562

z
c

HARRIS NUCLEAR PLANT
2006 ENVIRONMENTAL MONITORING REPORT
January 2008
Environmental, Health and Safety Services Section
PROGRESS ENERGY CAROLINAS, INC.
Raleigh, North Carolina

Harris Nuclear Plant 2006 Environmental Monitoring Report
Preface
This copy of the report .is not a controlled document as detailed in Environmental Services
Section Biology Program Procedures and Quality Assurance Manual. Any changes made to the
original of this report subsequent to the date of issuance can be obtained from:
Director
Environmental, Health and Safety Services Section
Progress Energy Carolinas, Inc.
410 South Wilmington Street
Raleigh, NC 27601
Progress Energy Carolinas, Inc. i Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Table of Contents
Page
Preface.................................................................................................................................... i
List of Tables
..........................................................................................................................
Listof Figures.........................................................................................................................
Listof Appendices..................................................................................................................
Metric -English Conversion and Units of Measure................................................................. iv
WaterChemistry Abbreviations............................................................................................. iv
HARRIS NUCLEAR PLANT 2006 ENVIRONMENTAL MONITORING REPORT
ReservoirDescription....................................................................................................... 1
Objectives......................................................................................................................... 1
Methods............................................................................................................................ 2
Discussion......................................................................................................................... 7
REFERENCES....................................................................................................................... 8
Progress Energy Carolinas, Inc.
ii Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
List of Tables
Table Pace
1 Environmental monitoring program at Harris Reservoir for 2006 ...................... 4
2 Field sampling and laboratory methods followed in the 2006 environmental
monitoring program at Harris Reservoir.............................................................. 5
3 Common and scientific names of species mentioned in this report ....................... 6
List of Figures
Figure Page
1 Sampling areas and stations at Harris Reservoir during 2006 .............................. 3
List of Appendices
,Appendix Page
1 Water temperature, dissolved oxygen, conductivity, pH, and Secchi disk
transparency data collected from Harris Reservoir during 2006 ......................... 9
2 Means, ranges, and spatial trends of selected limnological variables
from the surface waters of Harris Reservoir during 2006 ................................... 11
3 Mean number per hour for fish collected with electrofishing sampling
by transect from Harris Reservoir during 2006 ................................................... 12
4 Mean weight per hour for fish collected with electrofishing sampling
by transect from Harris Reservoir during 2006 ................................................... 13
5 Length -frequency distributions for bluegill, redear sunfish, and largemouth
bass collected with electrofishing sampling from Harris Reservoir in 2006....... 14
Progress Energy Carolinas, Inc. iii Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Metric -English Conversion and Units of Measure
Length
1 micron (gm) = 4.0 x 10-5 inch
1 millimeter (mm) = 1000 ,um = 0.04 inch
1 centimeter (cm) = 10 mm = 0.4 inch
1 meter (m) = 100 cm = 3.28 feet
1 kilometer (km) =1000 m = 0.62 mile
Area
1 square meter (m) = 10.76 square feet
1 hectare (ha) = 10,000 m2 = 2.47 acres
Volume
1 milliliter (ml) = 0.034 fluid ounce
1 liter = 1000 ml = 0.26 gallon
1 cubic meter = 35.3 cubic feet
Weight
1 microgram (,ug) = 10-3 mg or
10-6 g = 3.5 x 10-8
ounce
1 milligram (mg) = 3.5 x 10-5 ounce
1 gram (g) =1000 mg = 0.035 ounce
1 kilogram (kg) = 1000 g = 2.2 pounds
1 metric ton = 1000 kg = 1.1 tons
1 kg/hectare = 0.89 pound/acre
Temperature
Degrees Celsius (°C) = 5/9 (°F-32)
Specific conductance
/,&cm = Microsiemens/centimeter
Turbidity
NTU = Nephelometric Turbidity Unit
Progress Energy Carolinas, Inc. iv Environmental, Health and Safety Services
Water Chemistry Abbreviations
Cl-
Chloride
NH3-N
Ammonia -nitrogen
SO4
Sulfate
NO3- +NO2 -N
Nitrate + nitrite -nitrogen
Ca 2+
Total calcium
TP
Total phosphorus
Mgt+
Total magnesium
TOC
Total organic carbon
Na+
Total sodium
Cu
Total copper
TN
Total nitrogen
TDS
Total Dissolved Solids
Progress Energy Carolinas, Inc. iv Environmental, Health and Safety Services

Harris Nuclear Plant
2006 Environmental Monitoring Report
HARRIS NUCLEAR PLANT
2006 ENVIRONMENTAL MONITORING REPORT
Reservoir Description
Harris Reservoir, located in Chatham and Wake Counties, North Carolina, was created
by impounding Buckhorn Creek, a tributary of the Cape Fear River (Figure 1). The main body
of Harris Reservoir has a surface area of 1,680 ha; the auxiliary reservoir has a surface area of
130 ha. The main reservoir has a maximum depth of 18 in, a mean depth of 5.3 in, a volume of
8.9 x 107 m3, a full -pool elevation of 67.1 in NGVD, and an average residence time of 28
months. The reservoir began filling in December 1980 and reached full -pool elevation in
February 1983. The 64.5 -km shoreline is mostly wooded and the 183.9 -km2 drainage area is
mostly rolling hills with land used primarily for forestry and agriculture. The conversion of areas
from forestry or agricultural purposes to residential uses continues in many areas of the drainage.
Harris Reservoir was constructed to supply cooling tower makeup and auxiliary
reservoir makeup water to the 900 -MW Harris Nuclear Plant, which began commercial operation
in May 1987. In 1986 the bottom waters of the reservoir near the main dam began receiving
National Pollutant Discharge Elimination System (NPDES)-permitted wastewater discharges
from the power plant cooling tower. Tributaries also receive NPDES-permitted discharges from
the Harris Energy and Environmental Center and from wastewater treatment plants at Apex and
Holly Springs. The reservoir is a source of drinking water for Progress Energy employees at the
Harris Nuclear Plant and the Harris Energy and Environmental Center.
Objectives
The primary objectives of the 2006 Harris Nuclear Plant non -radiological environmental
monitoring program were to: (1) assess the overall water quality of Harris Reservoir, (2) identify
any natural or power plant -induced effects on reservoir water quality, (3) document the
introduction and expansion of nonnative plant and animal populations in the reservoir, and (4)
demonstrate the existence of a reasonable recreational fishery.
Progress Energy Carolinas, Inc. Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Methods
The Harris Nuclear Plant environmental program for 2006 included monitoring the
reservoir's: (1) limnological characteristics (water quality, water chemistry, and phytoplankton),
(2) fisheries community, (3) possible introductions of zebra and quagga mussels, and (4)
distribution of aquatic vegetation. Sampling methods and statistical analyses for data collected
during 2006 were similar to those used for data collected during 2004 (PEC 2005) (Tables 1
and 2). A list of common and scientific names of species mentioned in this report is provided
(Table 3).
All analytical testing completed in support of the Harris Reservoir environmental
program was performed by laboratories which were certified by the State of North Carolina to
perform water and wastewater testing (except for the analysis of total phosphorus). Total
phosphorus analysis was conducted by The University of Missouri—a vendor approved by
Progress Energy Carolinas, Inc., for this testing. The accuracy and precision of laboratory
analyses of water chemistry data were determined with analytical standards, spikes, and
replicates. Quality assurance information including the accuracy and percent recovery of water
chemistry standards are available upon request. In this report where concentrations were less
than the laboratory -reporting limit, the concentrations were assumed to be at one-half the
reporting limit for the calculation of the mean.
Progress Energy Carolinas, Inc. 2 Environmental, Health and Safety Services

Harris Nuclear Plant
Tom Jack
uS 1Creek �
�
Auxiliary
Reservoir
Dike
1
t
i '
Little White
I
1
`
F
White Oak
I
V
I
Creek
NC 42 C
\X Boat Ramp
utfall #007
\ N
\
i
plant Site:
r
E
2006 Environmental Monitoring Report
Thomas
i '
Little White
Creek ,
+
Oak Creek
White Oak
Creek
utfall #007
\ N
plant Site:
Intake
'
Canal
(MI)
1
i
V
1
2
Boat Outfall
�
J
S
tamp 006
'
r
Emergency
'
Service
.'
Water Intake
(AI)
,.
Q
P
Cary
Branch
'Holleman's
Crossroads
Boat Ramp
Main Dam
rMa
Buckhorn
Creek
Buckhom
H l Creek.
0 1 2
Kilometers
0 1 2
I Miles
Figure 1. Sampling areas and stations at Harris Reservoir during 2006.
Progress Energy Carolinas, Inc. 3 Environmental, Health and Safety Services

Harris Nuclear Plant
2006 Environmental Monitoring Report
Table 1. Environmental monitoring program at Harris Reservoir for 2006.
Program Frequency Location
Water quality January, May, July, November Stations E2, H2, P2, and S2
(surface to bottom at
1-m intervals)
Water chemistry January, May, July, November Stations E2, 112, P2, and S2
(surface samples at all stations)
Plankton
Chlorophyll a
Phytoplankton+
Siofouling monitoring
Zebra mussel surveys
Fisheries
Electrofishing
Aquatic vegetation survey
January, May, July, November
January, May, July, November
January, May, July, November
Stations E2, H2, P2, and S2
Stations E2, H2, P2, and S2
Areas E, P or Q, and V
February, May, August, November Stations E1, E3, H1, H3, Pl, P3,
S1, S3, V1, and V3
November Areas MI and Z
+Phytoplankton samples were collected and preserved but were not identified because all sampled
chlorophyll a concentrations were < 40 Mg/L.
Progress Energy Carolinas, Inc. 4 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Table 2. Field sampling and laboratory methods followed in the 2006 environmental
monitoring program at Harris Reservoir.
Pro
Methods
Water quality Temperature, dissolved oxygen, pH, turbidity, and specific conductance were
measured with calibrated YSe multi -parameter instruments and YSe dissolved
oxygen meters. Measurements were taken from surface to bottom at 1-m intervals.
Water clarity was measured with a Secchi disk.
Water chemistry Surface water samples were collected in appropriate containers, transported to the
laboratory on ice, and analyzed according to accepted laboratory methods.
Phytoplankton Equal amounts of water from the surface, the Secchi disk transparency depth, and
twice the Secchi disk transparency depth were obtained with a Van Dorn sampler and
mixed in a plastic container. A 250-m1 sub sample was taken and preserved with
5 ml of "MY fixative.
Chlorophyll a Equal amounts of water from the surface, the Secchi disk transparency depth, and
twice the Secchi disk transparency depth were obtained with a Van Dorn sampler and
mixed in a plastic container. A 1000-m1 sub sample was collected in a dark bottle,
placed on ice, and returned to the laboratory. In the laboratory a 250-m1 sub sample
was analyzed according to Strickland and Parsons (1972) and APHA (1995).
Electrofishing Fifteen -minute samples were collected at each station using a Smith -Root Type
VI -A, 5.0 GPP, or 7.5 GPP equipped, Wisconsin -design electrofishing boat with
pulsed DC current. Fish were identified to species, measured to the nearest mm,
weighed to the nearest gram, examined for the presence of disease and deformities,
and released.
Biofouling
The dock at the Holleman's boat ramp or water quality station marker buoys were
monitoring
visually inspected for mussels during routine water quality monitoring.
Aquatic
Portions of the shoreline and/or littoral zone of the Harris Plant main reservoir intake
vegetation
canal and auxiliary reservoir were systematically surveyed by boat to document the
survey
presence of aquatic vegetation, specifically hydrilla and water primrose.
Progress Energy Carolinas, Inc. 5 Environmental, Health and Safety Services

Harris Nuclear Plant 2006Environmental Monitoring Report
Table 3. Common and scientific names of species mentioned in this report.
Common Name Scientific Name
Mussels
Quagga mussel Dreissena bugensis
Zebra mussel Dreissena polymorpha
Aquatic Vegetation
Water primrose Ludwigia spp.
Hydrilla Hydrilla verticillata
Progress Energy Carolinas, Inc. 6 Environmental, Health and Safety Services
Fish
Black crappie
Pomoxis nigromaculatus
Bluegill
Lepomis macrochirus
Bluespotted sunfish
Enneacanthus gloriosus
Bowfin
Amia calva
Brown bullhead
Ameiurus nebulosus
Chain pickerel
Esox niger
Channel catfish
ktalurus punctatus
Coastal shiner
Notropis petersoni
Common carp
Cyprinus carpio
Flat bullhead
Ameiurus platycephalus
Gizzard shad
Dorosoma cepedianum
Golden shiner
Notemigonus crysoleucas
Grass carp
Ctenopharyngodon idella
Largemouth bass
Micropterus salmoides
Redear sunfish
Lepomis microlophus
Snail bullhead
Ameiurus brunneus
Threadfin shad
Dorosoma petenense
Unidentified killifish
Fundulus spp.
Warmouth
Lepomis gulosus
White catfish
Ameiurus catus
White perch
Morone americana
Mussels
Quagga mussel Dreissena bugensis
Zebra mussel Dreissena polymorpha
Aquatic Vegetation
Water primrose Ludwigia spp.
Hydrilla Hydrilla verticillata
Progress Energy Carolinas, Inc. 6 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Discussion
Harris Reservoir supplies makeup water to the closed -cycle cooling system for the
Harris Nuclear Plant. The Harris Nuclear Plant discharges primarily cooling tower blowdown,
along with low volume waste discharges, into the reservoir near the main dam.
Harris Reservoir continued to show qualities of a typical, biologically productive,
southeastern reservoir in 2006. Reservoir waters were well -mixed during late autumn and winter
months with similar temperature and dissolved oxygen levels throughout the water column.
Dissolved oxygen levels declined near the bottom with stratification during late spring and
summer. Nutrient concentrations remained somewhat similar to recent years and were in an
expected range for a productive reservoir in this area of the Piedmont. Total nitrogen, nitrate +
nitrite -N, and total phosphorus values have shown slightly increasing trends in recent years but
are not considered biologically significant.
Largemouth bass, bluegill, and redear sunfish continued to dominate the .fish community
in Harris Reservoir during 2006. Annual catch rates for redear sunfish and largemouth bass were
similar to catch rates in previous years while the annual catch rates for bluegill sunfish increased
from recent years. Bluegill and largemouth bass were represented by multiple size groups and an
abundance of small fish indicated good reproduction. Similar to previous years, young redear
sunfish were less common in samples than young bluegill and largemouth bass. The largemouth
bass population remained balanced with a high percentage of larger fish present in the
population.
No exotic mussel species that could cause biofouling problems were found in Harris
Reservoir or the auxiliary reservoir during 2006. During November of 2006 a visual aquatic
vegetation survey of the shoreline was conducted in the Thomas Creek arm of the Harris
Reservoir and in the HNP intake canal. Similar to previous years, the dominant aquatic
vegetation was hydrilla and water primrose (Ludwigia spp.). The areal coverage of both aquatic
weeds was similar to recent years and no fouling of the plant intake screens occurred. No stands.
of hydrilla were observed in the littoral zone of the auxiliary reservoir during 2006. The attempt
to control hydrilla by releasing grass carp in the auxiliary cooling reservoir continues to be
effective in preventing infestation and spread of hydrilla.
Progress Energy Carolinas, Inc. 7 Environmental, Health and Safety Services

Harris Nuclear Plant
REFERENCES
2006 Environmental Monitoring Report
APHA. 1995. Standard methods for the examination of water and wastewater. 19th ed.
American Public Health Association, Washington, DC.
PEC. 2005. Harris Nuclear Power Plant 2004 environmental monitoring report. Progress
Energy Carolinas, New Hill, NC.
Strickland, J. D. H., and T. R. Parsons. 1972. A practical handbook of seawater analysis.
Bulletin No. 167 (2nd ed.). Fisheries Research Board of Canada.
Progress Energy Carolinas, Inc. 8 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Appendix 1. Water temperature, dissolved oxygen, conductivity, pH, and Secchi disk
transparency data collected from Harris Reservoir during 2006.
Progress Energy Carolinas, Inc. 9 Environmental, Health and Safety Services
January 24, 2006
Depth
Temperature
Dissolved oxygen
Conductivity
pH
Secchi disk depth
(m)
CC)
(mg/L)
(µS/cm)
(m)
E2
H2
P2
S2
E2
H2
P2
S2
E2 H2 P2
S2
E2 H2
P2
S2
E2 H2 P2 S2
0.2
10.3
9.8
9.8
9.3
11.9
10.8
11.5
8.9
133 119 129
156
7.7
7.9
8.3
8.3
1.2 1.2 1.2 0.9
1.0
9.8
9.8
9.6
9.2
12.1
10.8
12.4
8.4
133 119 129
155
7.7
7.9
8.0
8.3
2.0
9.2
9.6
9.3
9.1
12.1
10.8
11.5
8.5
133 119 128
153
7.7
7.9
7.9
8.2
3.0
9.1
9.6
9.2
9.1
11.7
10.9
11.3
8.2
133 119 128
156
7.7
7.8
7.9
8.2
4.0
9.1
9.6
9.2
9.1
11.3
10.8
11.1
8.1
133 119 128
156
7.6
7.8
7.8
8.1
5.0
9.1
9.5
9.2
11.1
10.8
11.0
133 119 129
7.6
7.8
7.8
6.0
9.1
9.3
9.2
11.0
10.4
10.7
133 121 129
7.6
7.7
7.8
7.0
9.1
9.2
9.2
10.8
10.0
10.7
133 123 129
7.6
7.7
7.8
8.0
9.1
9.2
9.2
10.7
9.8
10.6
133 123 129
7.6
7.6
7.8
9.0
9.0
9.2
10.6
9.7
134 123
7.6
7.6
10.0
9.0
10.5
133
7.6
11.0
9.0
10.5
133
7.5
12.0
9.0
10.4
133
7.5
13.0
9.0
10.4
133
7.5
14.0
9.0
10.4
133
7.5
15.0
9.0
10.4
134
7.5
16.0
9.0
10.0
134
7.5
May 10, 2006
Depth
Temperature
Dissolved oxygen
Conductivity
pH
Secchi disk depth
(m)
(°C)
(mg/L)
(AS/cm)
(m)
E2
H2
P2
S2
E2
H2
P2
S2
E2 H2 P2
S2
E2
H2
P2
S2
E2 H2 P2 S2
0.2
21.1
20.3
20.1
20.0
9.2
9.2
9.3
7.3
160 158 161
149
7.9
7.7
7.7
6.9
2.2 1.5 1.8 1.0
1.0
21.1
20.2
20.1
19.2
9.1
9.2
9.3
6.8
160 158 161
148
7.9
7.7
7.7
6.8
2.0
20.1
19.7
19.8
18.7
8.5
8.7
9.2
6.0
160 157 161
146
7.6
7.4
7.6
6.7
3.0
19.7
19.6
19.5
16.2
5.8
8.4
8.8
2.3
161 157 161
123
6.9
7.3
7.5
6.1
4.0
18.9
19.5
19.1
16.0
5.4
7.7
8.0
2.2
161 157 161
123
6.7
7.1
7.1
6.2
5.0
18.3
19.4
18.9
16.0
3.3
7.1
7.2
2.2
161 157 161
124
6.5
7.0
7.0
6.7
6.0
18.1
19.0
18.6
2.2
5.6
6.0
161 154 161
6.5
6.8
6.8
7.0
17.5
17.8
18.0
1.9
2.2
4.0
167 144 164
6.4
6.5
6.6
8.0
16.9
17.1
17.4
1.6
0.6
2.3
168 163 174
6.4
6.7
6.6
9.0
16.4
17.3
1.5
1.5
171 185
6.4
6.7
10.0
16.2
1.3
172
6.4
11.0
15.8
1.1
174
6.4
12.0
15.3
0.9
176
6.4
13.0
14.5
0.5
182
6.5
14.0
14.3
0.3
186
6.6
15.0
13.9
0.3
191
6.7
16.0
13.7
0.3
201
6.7
17.0
13.7
0.3
203
6.8
Progress Energy Carolinas, Inc. 9 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Appendix 1 (continued)
10, 2006
Depth Temperature Dissolved oxygen Conductivity pH
(m) (°C) (mg/L) (US/cm)
E2 H2 P2 S2 E2 H2 P2 S2 E2 H2 P2 S2 E2 H2 P2 S2
0.2
27.7
28.2
28.0
27.7
8.9
8.5
8.5
7.7
139
137
138
133
8.2
7.7
8.0
7.2
1.0
27.5
28.0
28.0
27.6
8.8
8.5
8.5
7.5
139
138
138
133
8.0
7.7
8.0
7.1
2.0
27.1
27.5
28.0
27.4
8.3
7.7
8.3
7.1
139
138
138
134
7.8
7.3
7.7
7.0
3.0
26.2
27.2
27.3
26.3
2.5
4.7
7.8
0.5
139
138
138
143
6.3
6.7
7.4
6.5
4.0
25.3
24.8
27.0
23.9
0.5
0.5
6.0
0.3
144
145
138
156
6.2
6.4
6.7
6.5
5.0
23.1
22.4
22.3
23.7
0.3
0.4
0.5
0.3
158
145
144
155
6.2
6.2
6.2
6.5
6.0
21.9
21.0
21.2
9.5
0.3
0.3
0.3
3.8
162
143
139
80
6.2
6.1
6.1
7.4
7.0
21.3
20.8
20.8
0.2
0.2
0.2
158
143
138
6.2
6.1
6.1
8.0
20.7
20.6
20.4
0.2
0.2
0.2
153
146
140
6.2
6.1
6.2
9.0
20.2
11.0
0.2
7.4
151
95
6.2
7.1
10.0
19.7
0.2
161
6.2
11.0
19.2
0.2
171
6.3
12.0
17.8
0.2
192
6.4
13.0
16.7
0.1
218
6.5
14.0
16.2
0.1
226
6.6
15.0
16.0
0.1
229
6.6
16.0
15.9
0.1
233
6.7
17.0
15.8
0.1
246
6.7
November 30, 2006
Depth Temperature Dissolved oxygen Conductivity pH
(m) (°C) (mg/L) (/.ts/cm)
E2 H2 P2 S2 E2 H2 P2 S2 E2 H2 P2 S2 E2 H2 P2 S2
0.2
12.6
15.0
14.4
15.4
8.3
11.3
11.3
12.2
123
123
124
113
7.3
7.5
7.6
7.4
1.0
12.5
14.7
14.4
15.1
8.2
11.2
11.3
11.3
122
123
124
113
7.2
7.5
7.6
7.2
2.0
12.3
14.3
14.2
13.7
8.2
10.9
11.1
6.8
122
123
124
99
7.1
7.5
7.6
6.8
3.0
11.8
12.6
12.3
10.0
8.1
9.8
9.9
5.0
120
122
124
62
7.1
7.4
7.5
6.9
4.0
11.7
12.0
12.0
9.6
7.7
9.1
9.0
4.8
110
119
123
62
7.0
7.3
7.4
7.2
5.0
11.6
11.5
11.9
9.5
7.1
8.9
9.0
3.4
106
112
120
65
7.0
7.2
7.3
7.2
6.0
11.5
11.3
11.5
9.5
6.3
8.5
9.0
3.8
104
109
112
80
6.9
7.2
7.3
7.4
7.0
11.4
11.2
11.3
6.1
6.4
8.6
107
101
103
6.8
7.0
7.2
8.0
11.4
11.2
11.1
6.2
5.7
8.0
107
101
96
6.8
6.9
7.1
9.0
11.4
11.0
6.1
7.4
108
95
6.8
7.1
10.0
11.4
6.0
107
6.8
11.0
11.4
6.2
108
6.7
12.0
11.4
6.3
109
6.7
13.0
11.4
6.3
109
6.7
14.0
11.4
6.3
109
6.7
15.0
11.4
6.2
114
6.7
Secchi disk depth
(m)
E2 H2 P2 S2
1.4 1.3 1.7 1.3
Secchi disk depth
(m)
E2 H2 P2 S2
1.0 1.5 1.2 0.9
Progress Energy Carolinas, Inc. 10 Environmental, Health and Safety Services

Harris Nuclear Plant
2006 Environmental Monitoring Report
Appendix 2. Means, ranges, and spatial trends of selected limnological variables from the
surface waters of Harris Reservoir during 2006.
'Total alkalinity units are in mg/L as CaCO3 and hardness is calculated as mg equivalents
CaCO3/L.
Progress Energy Carolinas, Inc. 11 Environmental, Health and Safety Services
Station
Reservoir
E2
H2
P2
S2
Variable
Mean
Total dissolved solids (mg/L)
86
82
87
92
87
76-98
73-92
72-103
79-110
(72-110)
Turbidity (NTU)
3.3
3.5
2.9
8.0
4.4
(1.9-4.6)
(1.0-5.7)
(1.7-4.0)
(5.5-13)
(1.0-13
Secchi disk transparency (m)
1.4
1.4
1.5
1.0
1.3
(1.0-2.2)
1.2-1.5)
1.2-1.8)
(0.9-1.3
(0.9-2.2)
Chlorophyll a (ug/L)
16
16
12
9.5
13
(1.8-29.9)
(5.7-21.3)
6.3-17.1
(4.2-13.2)
(4.2-29.9)
Nutrients (mg/L)
Ammonia -N
0.02
0.01
0.01
0.03
0.02
(< 0.02-0.02)
(< 0.02-0.02)
(< 0.02-0.02)
(< 0.02-0.08)
(< 0.02-0.08)
Nitrate + nitrite -N
0.14
0.14
0.14
0.08
0.12
(0.05-0.24)
(0.06-0.22)
(0.05-0.21)
(0.03-0.14)
(0.03-0.24)
Total nitrogen
0.96
0.98
0.87
0.89
0.92
0.73-1.29
0.66-1.44
0.60-1.13
0.62-1.10
0.60-1.44
Total phosphorus
0.048
0.031
0.036
0.035
0.037
(0.030-0.069)
(0.024-0.034
(0.030-0.046)
(0.027-0.041)
(0.024-0.069)
Total organic carbon
7.3
7.7
7.9
8.7
7.9
(5.8-8.5)
(6.5-8.9)
(7.2-8.7)
7.8-9.4
(5.8-9.4)
Hardnessil
19
19
19
22
20
(18-21)
17-21)
18-21
19-26
17-26)
Specific conductance (MS/cm)
139
134
138
138
137
(123-160)
(119-158)
(124-161)
(113-156)
(113-161)
Ions (mg/L)
Calcium
4.3
4.3
4.2
5.3
4.5
3.9-4.8
3.7-4.8)
3.8-4.8
4.5-7.0
3.7-7.0
Chloride
18
18
18
17
18
(17.4-19.6)
(16.7-18.4)
(17.6-19.2)
(15.1-20.4)
(15.1-20.4)
Magnesium
2.1
2.1
2.1
2.0
2.1
(2.0-2.1)
(1.9-2.2)
(1.9-2.2)
(1.9-2.1)
1.9-2.2)
Manganese
102
61
66
135
91
47.2-168.0)
(43.0-83.8)
(53.8-88.3)
39.6-207.0)
(39.6-207.0)
Sodium
13.4
13.2
14.5
13.0
13.2
(12.8-14.1)
(11.8-14.4)
(12.6-14.4)
(12.0-13.8)
(11.8-14.4)
Sulfate
15
15
14
14
15
(13.4-17.5)
(12.2-16.5)
(11.7-17.2)
(9.5-20.6)
(9.5-20.6)
Total alkalinity
17
16
16
19
17
16-20
(14-20)
14-18)
15-28
(14-28
Copper (ug/L)
1.8
1.5
5.6
1.7
2.7
(1.1-2.8)
(1.0-2.1)
(1.0-18.1)
(1.3-2.7)
(1.0-18.1)
'Total alkalinity units are in mg/L as CaCO3 and hardness is calculated as mg equivalents
CaCO3/L.
Progress Energy Carolinas, Inc. 11 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Appendix 3. Mean number per hour for fish collected with electrofishing sampling by
transect from Harris Reservoir during 2006.
Species
Transect
Reservoir
mean
E
H
P
S
V
Bowfin
0
< 1
1
2
2
1
Gizzard shad
12
16
3
38
13
16
Threadfm shad
28
36
192
202
< 1
92
Common carp
0
1
0
0
< 1
< 1
Golden shiner
2
2
3
4
4
3
Coastal shiner
0
2
1
< 1
0
1
Snail bullhead
1
0
0
0
0
< 1
White catfish
4
1
4
< 1
6
3
Brown bullhead
1
4
2
3
1
2
Flat bullhead
< 1
0
0
0
1
< 1
Channel catfish
0
0
0
0
< 1
< 1
Chain pickerel
0
0
0
4
4
2
Unidentified killifish
0
0
1
0
0
< 1
White perch
1
< 1
< 1
0
0
< 1
Bluespotted sunfish
0
0
0
2
< 1
1
Warmouth
2
3
< 1
14
4
5
Bluegill
130
184
118
174
154
152
Redear sunfish
60
76
22
32
5
39
Sunfish (hybrid)
0
0
0
< 1
0
< 1
Largemouth bass
26
23
29
28
36
28
Black crappie
16
72
12
6
5
22
Total"
284
423
389
512
236
369
"Summations may vary from column totals due to rounding.
Progress Energy Carolinas, Inc. 12 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Appendix 4. Mean weight (in kilograms) per hour for fish collected with electrofishing
sampling by transect from Harris Reservoir during 2006.
Species
Transect
Reservoir
mean
E
H
P
S
V
Bowfin
0
0.6
1.5
2.3
4.4
1.8
Gizzard shad
2.5
4.0
0.7
5.7
3.8
3.3
Threadfm shad
0.3
0.3
1.6
2.2
< 0.1
0.9
Common carp
0
4.7
0
0
2.2
1.4
Golden shiner
0.1
0.1
0.1
0.1
< 0.1
0.1
Coastal shiner
0
< 0.1
< 0.1
< 0.1
0
< 0.1
Snail bullhead
< 0.1
0
0
0
0
< 0.1
White catfish
2.1
0.6
2.4
0.2
3.3
1.7
Brown bullhead
0.2
1.6
0.8
1.2
0.2
0.8
Flat bullhead
< 0.1
0
0
0
0.2
< 0.1
Channel catfish
0
0
0
0
0.4
0.1
Chain pickerel
0
0
0
2.1
1.4
0.7
Unidentified killifish
0
0
< 0.1
0
0
< 0.1
White perch
0.1
0.1
< 0.1
0
0
< 0.1
Bluespotted sunfish
0
0
0
< 0.1
< 0.1
< 0.1
Warmouth
0.1
0.2
< 0.1
0.5
0.4
0.3
Bluegill
4.0
6.9
3.5
5.6
5.6
5.1
Redear sunfish
7.3
6.8
2.4
2.0
0.3
3.8
Sunfish (hybrid)
0
0
0
< 0.1
0
< 0.1
Largemouth bass
11.2
17.5
16.2
10.8
36.0
18.3
Black crappie
1.6
8.0
1.2
1.5
0.4
2.5
Total"
29.7
51.4
30.5
34.2
58.7
40.9
"Summations may vary from column totals due to rounding.
Progress Energy Carolinas, Inc. 13 Environmental, Health and Safety Services

Harris Nuclear Plant 2006 Environmental Monitoring Report
Appendix 5. Length -frequency distributions for bluegill, redear sunfish, and largemouth
bass collected with electrofishing sampling from Harris Reservoir in 2006.
Bluegill
10
g n=1522
d
6
d
4
a 2
0
o LO o Ln o Un o Ln CO Ln o LO o LO o Urn o Ln
N M LO CO 00 O r- N 'CF LO rl- M O M, 'd' CO rl-
Total Length (mm)
10
8
r
(D
6
U
`m 4
a.
Redear Sunfish
0 M 0 M 0 M 0 M 0 M 0 M 0 M O 0 0 0
N M if ) O 00 CA r- N 1;T 0 1` M O
Total Length (mm)
Largemouth Bass
10
8 n = 283
c
� 6
L
a
4-
2
0
N Iq M N 0 O IT 000 N 0 O � 000 N 0 O
N N N M M It � Iq LO 0 0
Total Length (mm)
Progress Energy Carolinas, Inc.
14 Environmental, Health and Safety Services