United States
Environmental Protection
Agency
Office of Radiation and Indoor Air
Environmental Laboratory
540 South Morris Avenue
Montgomery, AL 36115-2601
EPA-402-R-98-011
January 1999
Radiological Survey of
Naval Facilities on
San Diego Bay
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 20% Postconsum
-------
Radiological Survey of Naval Facilities
on San Diego Bay
Roger Goodman
November 1998
U.S. Environmental Protection Agency
Office of Radiation and Indoor Air
National Air and Radiation Environmental Laboratory
540 South Morris Avenue
Montgomery, AL 36115-2601
-------
CONTENTS
EXECUTIVE SUMMARY v
LIST OF ILLUSTRATIONS vii
LIST OF TABLES ix
ACKNOWLEDGMENTS xi
1.0 INTRODUCTION 1
1.1 Site Description and History 1
1.2 Survey History 3
1.3 Contaminants of Concern 4
1.4 Study Objectives 4
2.0 SAMPLING AND ANALYSIS 5
2.1 Sampling Strategy 5
2.1.1 Sample Identification 6
2.1.2 Abbreviations 10
2.1.3 Background Locations 10
2.1.4 Study Sites 11
2.2 Instrumentation 11
2.3 Collection of Samples and Analysis 11
3.0 RESULTS AND DISCUSSION 39
3.1 Water Samples 39
3.2 Sediment And Sediment Core Samples 40
3.3 Biota Samples 41
3.4 External Radiation Measurements 42
4.0 QUALITY ASSURANCE/QUALITY CONTROL (QA/QC) 43
4.1 The Quality Assurance Program 43
4.2 Quality Control Samples 43
4.3 Performance Evaluation Programs 44
5.0 CONCLUSIONS 45
6.0 REFERENCES 47
APPENDIX: Radioanalytical Results for San Diego Harbor Samples: March 1997 49
111
-------
EXECUTIVE SUMMARY
In 1996, the Naval Sea Systems Command (NAVSEA) and the U.S. Environmental Protection
Agency's National Air and Radiation Environmental Laboratory (NAREL) signed an
interagency agreement whereby NAREL would perform radiological surveys over the next
five years at active naval facilities serving nuclear-powered warships. These surveys assess
whether the construction, maintenance, operation, overhaul, or refueling of nuclear-powered
warships have created elevated levels of radioactivity that could result in potential exposure to
nearby populations or contamination of the environment.
This report covers the survey of the San Diego Harbor, conducted in March of 1997. During
this survey 132 samples were collected including 21 background samples and 15 duplicate
samples. Samples included drinking water, harbor water, sediment, sediment cores, and biota.
All samples were analyzed for gross alpha and beta activities and gamma emitting
radionuclides, and some samples were also analyzed for radium-226 and isotopes of uranium,
plutonium, and thorium. In addition to sample collection and analysis, radiation surveys were
performed using portable survey instruments to detect gamma radiation.
With the exception of one core sediment sample, all of the harbor sediment and core sediment
samples, shoreline sediment samples, water samples, and biota samples from the San Diego
Harbor contained no detectable levels of radioactivity other than those occurring naturally or
attributable to fallout from atmospheric nuclear tests or the Chernobyl reactor accident in
1986. At the submarine base, a trace amount of cobalt-60 (0.022 ±0.012 pCi/g-dry weight)
was detected in one segment of one sediment core sample. External radiation measurements
did not indicate any increased radiation exposure above natural background levels. Based on
this radiological survey, practices regarding nuclear-powered warship operations at San Diego
Harbor have resulted in no increases in radioactivity causing significant population exposure
or contamination of the environment.
-------
ILLUSTRATIONS
Figure Page
1.0 All sample locations for San Diego Harbor survey 2
2.0 Surface water sample locations 13
2.1 Surface water sample locations 14
2.2 Surface water sample locations 15
2.3 Surface water sample locations 16
3.0 Drinking water sample locations 17
3.1 Drinking water sample locations 18
4.0 Harbor sediment sample locations 19
4.1 Harbor sediment sample locations 20
4.2 Harbor sediment sample locations 21
4.3 Harbor sediment sample locations 22
4.4 Harbor sediment sample locations 23
5.0 Shoreline sediment sample locations 24
5.1 Shoreline sediment sample locations 25
5.2 Shoreline sediment sample locations 26
5.3 Shoreline sediment sample locations 27
6.0 Core sample locations 28
6.1 Core sample locations 29
6.2 Core sample locations 30
6.3 Core sample locations 31
7.0 Biota sample locations 32
7.1 Biota sample locations 33
7.2 Biota sample locations 34
8.0 External gamma measurement locations 35
8.1 External gamma measurement locations 36
8.2 External gamma measurement locations 37
8.3 External gamma measurement locations 38
vn
-------
TABLES
Table Page
1 Table of Sample Locations 7
A. 1 Gamma Activity for Surface Water 51
A.2 Tritium Activity for Surface Water 52
A.3 Alpha/Beta Activity for Surface Water 53
A.4 Radium-226 Activity for Surface Water/Drinking Water 54
A. 5 Uranium Activity for Surface Water/Drinking Water 55
A.6 Thorium Activity for Surface Water/Drinking Water 56
A. 7 Plutonium Activity for Surface Water/Drinking Water 57
A.8 Gamma Activity for Drinking Water 58
A.9 Tritium Activity for Drinking Water 59
A.10 Alpha/Beta Activity for Drinking Water 60
A.I l.a Gamma Activity for Harbor/Shoreline Sediment (uranium/actinium) 61
A.I 1 .b Gamma Activity for Harbor/Shoreline Sediment (thorium and other gamma
emitting radionuclides) 64
A. 12 Alpha/Beta Activity for Harbor/Shoreline Sediment 67
A.13 Radium-226 Activity for Harbor Sediment 70
A. 14 Uranium Activity for Harbor Sediment 71
A. 15 Thorium Activity for Harbor Sediment 72
A.16 Plutonium Activity for Harbor Sediment 73
A. 17.a Gamma Activity for Core Sediment (uranium/actinium—by core) 74
A. 17.b Gamma Activity for Core Sediment (thorium and other gamma emitting
radionuclides—by core) 76
A.17.C Gamma Activity for Core Sediment (uranium/actinium~by depth) 78
A. 17.d Gamma Activity for Core Sediment (thorium and other gamma emitting
nuclides~by depth) 81
A. 18.a Alpha/Beta Activity for Core Sediment (by core) 84
A.lS.b Alpha/Beta Activity for Core Sediment(by depth) 86
A.19 Radium-226 Activity for Core Sediment 88
A.20 Uranium Activity for Core Sediment 89
A.21 Thorium Activity for Core Sediment 90
A.22 Plutonium Activity for Core Sediment 91
A.23.a Gamma Activity for Biota (uranium/actinium) 92
A.23.b Gamma Activity for Biota (thorium and other gamma emitting nuclides).. . 93
A.24 • Alpha/Beta Activity for Biota 94
A.25 Radium-226 Activity for Biota 95
A.26 Uranium Activity for Biota 96
A.27 Thorium Activity for Biota 97
A.28 Plutonium Activity for Biota '. 98
A.29 Results of External Gamma Radiation Measurements 99
IX
-------
ACKNOWLEDGMENTS
Many staff assisted in the preparation of this report. The EPA survey team consisted of Roger
Goodman, Clint Cox, Ken Pohl, David Norwood, and Jim Moore from EPA/NAREL and
Shelly Rosenblum and Periann Wood from EPA Region 9 in San Francisco, California. The
detailed planning, support and assistance of staff from the USS McKee (AS-41) and Puget
Sound Naval Shipyard was much appreciated.
DISCLAIMER
The use of any specific manufacturer's name or product does not in any way constitute an
endorsement of that manufacturer or product.
XI
-------
1.0 INTRODUCTION
In 1996, the Naval Sea Systems Command (NAVSEA) and the U.S. Environmental
Protection Agency's National Air and Radiation Environmental Laboratory (NAREL) signed
an interagency agreement whereby NAREL would perform radiological surveys over the next
five years at active facilities serving nuclear-powered warships. These surveys assess
whether the construction, maintenance, operation, overhaul, or refueling of nuclear-powered
warships have created elevated levels of radioactivity that could result in potential exposure
to nearby populations or contamination of the environment. NAREL, in cooperation with
NAVSEA, has previously surveyed facilities serving nuclear-powered warships. These
surveys began in 1963 and have been conducted at Navy harbors and shipyards on the
Atlantic, Pacific, and Gulf of Mexico coasts of the Continental United States and at Pearl
Harbor, Hawaii.
The first environmental study under the IAG was performed September 9-20, 1996, at the
Puget Sound Naval Shipyard (PSNS) at Bremerton, Washington, and the Naval Submarine
Base (NSBB) near Bangor, Washington. The second environmental study under the IAG was
performed March 17-27, 1997 at the Naval Station, San Diego; Naval Submarine Base, San
Diego; and Naval Air Station/North Island, San Diego. A pre-survey trip was made January
7-8, 1997, to develop a sampling and survey work plan (EPA97a) with the assistance of
knowledgeable site personnel. NAVSEA, San Diego, and Puget Sound Naval Shipyard staff
provided information for NAREL on past and present San Diego Harbor radiological
operations and procedures. The study design was based on information received for the
present study and on information derived from previous EPA studies. The work plan for this
study describes the approach used for assessing the radiological condition of the San Diego
Bay aquatic environments.
1.1 Site Description and History (Ca67, Se89)
San Diego Bay is located on the southern coast of California. The bay contains
approximately 22 square miles of surface area and is naturally landlocked by Point Loma on
the west and North Island on the east. The bay has an axial length of 14.7 statute miles with
the main portion of the bay extending in a northwest-southeast direction. The mean width is
1.26 miles, varying from 0.31 miles near the entrance to 2.24 miles at the widest point near
the Otay river. The mean tidal range is 4.2 feet and the current at the entrance has an average
velocity of 2.4 feet per second and a maximum velocity of 4.55 feet per second. A chart of
the bay is shown in Fig. 1.0.
-------
Fig. 1.0. ALL SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 2 THROUGH 7
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
>0
Sample Location
Buoy«
SHpWnck
:=.•;.. ' |/
SAN DIEGO
A^/AL
STATION
-------
Freshwater inflow for the bay consists of storm runoff and four small rivers which are dry in
the summer. This freshwater flow is so small that there are no stream gauge records showing
actual volumes. The average annual rainfall, 10.6 inches, falls predominantly from October
through May. Due to the absence of extensive silting from freshwater streams, a minimum of
maintenance dredging is required in the bay. The bottom of the bay is characterized by shells
and small gravel.
Commercial fishing is prohibited in the bay, but sport fishing is popular and is centered
around the municipal fishing pier on Shelter Island. The bay is also a popular area for power
boating and sailing. Agriculture is not present along the perimeter of the harbor.
The United States Census estimated population for the city of San Diego is 1,151,977 and the
metropolitan area (San Diego County) estimated population is 2,644,132 (both estimates are
for July 1, 1994, extrapolated from 1990 data). San Diego's major industries are aircraft,
shipbuilding, and tuna fishing. Naval and marine installations provide employment for a
large segment of the total work force. The water supply for the city of San Diego comes from
a group of reservoirs in the mountainous areas of the county and two aqueducts from the
Colorado River. The water treatment plants discharge effluent a significant distance offshore
into the Pacific Ocean.
There are three naval facilities located on San Diego Bay. The Naval Station, San Diego is
located on the mainland (eastern) side of San Diego Bay. The Naval Submarine Base, San
Diego is located on the eastern side of Point Loma, immediately north of Ballast Point. It
contains both fixed and floating piers and a floating drydock. The Naval Air Station/North
Island, San Diego is on North Island in the center of San Diego Bay.
1.2 Survey History
San Diego Bay was previously surveyed by USEPA-NAREL in 1967 and 1986 (Ca67,
Se89). During the 1967 and 1986 surveys, cobalt-60 (maximum of 17.4 pCi/g-dry in 1967,
0.05 pCi/g-dry in 1986) was found in some of the sediment samples, and was identified
during the 1967 survey by the underwater probe. The cobalt-60 deposition reported in the
1967 survey was located in the area from Ballast Point northward to Shelter Island. The
highest activities were detected in the immediate vicinity of the submarine pier, one of the
berthing areas for the nuclear submarine tenders. The cobalt-60 deposition reported in the
1986 EPA survey was present in eight sediment samples from the Submarine Base and one
sediment sample from near the sea wall at North Island.
-------
1.3 Contaminants of Concern
The results of previous harbor surveys indicate that cobalt-60 is the predominant radionuclide
one expects to find in environmental media if radioactivity is present as a result of Naval
nuclear propulsion plant operations; therefore, environmental sampling during this study
emphasized detection of cobalt-60 (Ca67, Se89). Other radionuclides of concern in liquid
effluents or encountered during maintenance work include tungsten-187, chromium-51,
hafnium-181, iron-59, iron-55, nickel-63, niobium-95, zirconium-95, tantalum-182,
manganese-54, and cobalt-58. Water samples were also analyzed for tritium, a contaminant
of concern, since it is known to be produced in the coolant of nuclear reactors. Analyses for
uranium, thorium, plutonium, and radium were performed on a percentage of the samples
from each media that showed the highest gross alpha and beta results. This was done to
ensure that the source of any elevated gross alpha or beta activities was from naturally
occurring nuclides or from fallout.
1.4 Study Objectives
The study objectives were to determine if radioactive material related to US Naval nuclear-
powered warship operations, repair, and maintenance is present at measurable levels in the
San Diego Harbor, to make comparisons of current study results with past study results and,
as deemed necessary, to estimate potential doses to the public.
-------
2.0 Sampling And Analysis
The following terms will be used in the discussion of the sampling plan:
Study Site(s): The geographical area in and around San Diego Bay that was
studied.
Sampling Location: A location within or near one of the study sites from which
samples were collected.
Background Location: A selected sampling location where representative levels of
naturally occurring or existing radionuclides were measured,
but were not likely to be related to Naval Station, San Diego;
Naval Submarine Base, San Diego; or Naval Air Station/North
Island, San Diego.
2.1 Sampling Strategy
This study was designed to determine the concentrations of cobalt-60 and other radionuclides
that could be present due to the operations performed at Naval Station, San Diego; Naval
Submarine Base, San Diego; or Naval Air Station/North Island, San Diego. Sampling
locations were selected to correspond to the locations where the Navy conducts
environmental monitoring, locations where the USEPA-NAREL sampled in the 1986 survey
of the study sites, and locations which were selected by the USEPA-NAREL to more
comprehensively cover the study site (Table 1 and Fig. 1.0). In general, sampling locations
were distributed so as to cover all likely locations of contamination.
Background sampling locations were selected in order to obtain baseline radionuclide levels
that are characteristic of the area, but are believed not to have been affected by operations at
the study sites. The data from the study site was compared directly to the background
concentrations when applicable or to other standards, such as the drinking water regulations.
-------
2.1.1 Sample Identification. The general scheme for identifying samples is
y-xxx-yyyy-y-yy, where x is a number and y is a letter, as shown in the illustration below.
xxx yyy y yy
Site Location Medium Duplicate Background
Indicator Indicator
(S) (057) (BBK) (DUP) (BG)
As indicated parenthetically above, in a typical sample identified as S-057-BBK-DUP-BG,
the S stands for San Diego Harbor; 057 is an assigned number identifying sample location;
BBK identifies the sampled medium as a biota, brown kelp sample; DUP indicates that this
is a duplicate (split); and BG indicates that the sample was taken at a background location.
(Note.-All samples do not require the use of all 11 alphanumeric characters for
identification.)
-------
TABLE 1
Sample Locations
ID
S055
S054
S052
S002
S118
S104
S048
S117
S045
S116
S103
S078
S102
S077
S076
S075
S074
S073
S119
S03A
S01A
S02B
S114
S115
S059
S058
S140
S139
S137
S136
Latitude1
32°41.038'N
32°41.091'N
32°41.021'N
32°40.775'N
32°40.739'N
32°40.727'N
32°40.617'N
32°40.538'N
32°40.342'N
32°40.380'N
32°40.251'N
32°40.122'N
32°40.122'N
32°40.024'N
32°39.945'N
32°39.818'N
32°39.642'N
32°39.408'N
32°39.273'N
32°42.253'N
32°42.319'N
32°42.396'N
32°42.501'N
32°42.506'N
32°42.817'N
32°42.697'N
32°42.764' N
32°42.826'N
32°42.787'
32°42.604'N
Longitude'
117°8.162'W
11707.897'W
117°7.712'W
117°7.777'W
117°7.658'W
117°7.488'W
117°7.522'W
117°7.477'W
117°7.479'W
117°7.30rW
117°7.163'W
117°7.336'W
117°7.256'W
117°7.375'W
117°7.296'W
117°7.387'W
117°7.363'W
117°7.193' W
117°8.852'W
117° 10.883' W
1 17° 11. 099' W
117°1 1.337' W
117011.264'W
117°1 1.009' W
H7°11.40rW
117° 11.309' W
117°11.462'W
117°11.842'W
117°12.415'W
I17°12.969'W
'97
55
54
52
2
48
45
78
77
76
75
74
73
3A
1A
2B
59
58
'86
47
44
41
30
29
23
20
18
17
13
48
50
52
55
54
'67
Sample Types"
DUP
BG
DUP
DUP
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
c
c
c
c
c
L
L
L
L
B
W
W
W
W
W
W
E
E
E
E
Location6
Naval Stn, Centered between Pier 1 and Pier to N,
about 50 yards out from end of Pier 1
Naval Stn, between Piers 1 & 2, even with southernmost large blue door of large
building on wharf; 150 yards from wharf
Naval Stn, N Side Pier 3
Naval Stn, N side end of Pier 4
Naval Stn, Middle between Piers 4 and 5
Naval Stn, Beginning of Pier 5, S Side
Naval Stn, Middle of Pier 6, N Side; centered on pier, 20 yards from the pier
Naval Stn, Middle between Piers 6 and 7
Naval Stn, N .of Pier 8, Centered on pier, and 20 yards away from the Pier
Naval Stn, S side beginning of Pier 8
Naval Stn, S Side of Seventh St. Channel
Naval Stn, S Side of Mole Pier
Naval Stn, S Side of Mole Pier
Naval Stn, S side end of Pier 10
Slaval Stn, Middle of Pier 1 1, S Side, even with 2nd cleat from pier terminus; 20 yards
"rom pier
Naval Stn, S side end of Pier 12
Naval Stn, N side end of Pier 13
Naval Stn, N side middle of Pier 14
Bkgd, Naval Stn, 100 yards S of wreck off of Pier H, S San Diego Bay
^lorth Island, Carrier Pier, even with oily waste burner
^orth Island, Carrier Pier, even with shore power mound # 2050, 20 yards from pier
vlorth Island, Carrier Pier, even with last shore power mound on West end of pier
•vtorth Island, Middle of new sea wall for carrier dock
North Island, middle of turning basin
North Island, Lima Pier, N Side, 20 yards away from pier
North Island, Lima Pier, N Side, even with Eastern end, 20 yards away from pier
Morth Island, Shoreline, Lima Pier
North Island, Shoreline, Depot Maintenance Facility
slorth Island, Shoreline, Northern Shore
vlorth Island, Shoreline, Northern Shore
-------
TABLE 1 - Continued
ID
S135
S081
S133
S120
S121
S129
S027
S128
S130
S109
S113
S108
S084
S025
S107
S023
S106
S019
S021
S020
S131
S105
S112
S101
S100
S063
Sill
S110
S082
S132
S134
S080
Latitude'
32°42.153'N
32°41.640'N
32°41.111'N
32°40.244'N
32°40.240'N
32°40.241'N
32°41.132'N
32°41.087'N
32°41.125'N
32°41.269'N
32°41.272'N
32°41.317'N
32°41.315'N
32°41.223'N
32°41.252'N
32°41.372'N
32°41.401'N
32°41.408'N
32°4I.377'N
32°41.333'N
32°41.328'N
32°41.396'N
32°41.424'N
32°4I.456'N
32°41.458'N
32°41.446'N
32°41.641'N
32°41.706'N
32°41.694'N
32°41.634'N
32°41.703'N
32° 42.07 5' N
Longitude'
117° 13.484' W
117° 13. 687' W
117° 13. 169' W
117°13.405' W
117° 14. 170' W
117° 14.243' W
117°14.107'W
117° 14.087' W
117°14.152'W
117°14.023'W
117° 13.966' W
117° 13.980' W
117° 14.023' W
117°14.198' W
117° 14.229' W
1 17° 1 4.026' W
m°14.031'W
117°14.071'W
117°14.170'W
117° 14.275' W
117° 14.323' W
117°14.241'W
117°14.150'W
117°14.125 W
117°14.165'W
1I7°14.207'W
117° 14.306' W
117° 14.296' W
117°14.148'W
117°14.395'W
117°14.400'W
H7°14.192' W
'97
81
27
84
25
23
19
21
20
63
82
80
'86
69
68
67
66
65
64
61
63
60
59
58
56
4
3
2
74
73
71
'67
13
9
7
10
4
6
8
1
2
3
20
Sample Types"
BG
BG
BG
BG
DUP
DUP
DUP
DUP
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
c
c
c
c
c
c
c
c
L
L
L
L
L
L
L
L
B
B
B
B
B
B
B
W
W
W
W
W
W
W
W
W
E
E
E
E
E
E
E
E
Location13
North Island, Shoreline, North of Bravo Weapons Pier
Morth Island, off of Bravo Pier Weapons area
Bkgd, North Island, Shoreline, Zufiiga Point, Nearest Beach Access
Bkgd, Zufiiga Point
Bkgd, Point Loma
3kgd, Point Loma, Sub Base Shoreline
Sub Base, Ballast Point, W Side; lying on a line using the Coast Guard Pier and Tennis
Courts as end points, 5 yards from CG Pier and 20 yards from beach
Sub Base, Shoreline, S shore Ballast Point
Sub Base, Shoreline, N side Ballast Point
Sub Base, Middle of Sierra Pier, S Side, outboard of floating drydock
Sub Base, S offend of Sierra Pier
Sub Base, End of Sierra Pier
Sub Base, lying on a line using the terminus of Mike and Sierra Piers
Sub Base, Between Mike and Sierra Pier
Sub Base, Between Mike and Sierra Pier
Sub Base, S Side of Mike Pier, 5 yards from pier, 25 yards East of terminus of pier
Sub Base, End of Mike Pier
Sub Base, N Corner of Mike Pier, at pier terminus
Sub Base, N Side of Mike Pier
Sub Base, N Side of Mike Pier
Sub Base, Shoreline, between Mike and November Piers
Sub Base, Middle of November Pier S Side
Sub Base, S offend of November pier
Sub Base, Off End of November Pier
Sub Base, End of November Pier, W Side
Sub Base, November Pier, N Side from pier terminus
Sub Base, Corner of Degaussing Pier
Sub Base, End of Degaussing Pier
Sub Base, E of Floating Piers; degaussing pier, E Side
Sub Base, Shoreline, S of Degaussing Pier
Sub Base, Shoreline, N of Degaussing Pier
Sub Base, off of center of fueling dock
00
-------
TABLE 1 - Continued
ID
S138
S122
S123
S124
S125
S126
S127
S141
S142
S143
S144
S145
S146
S147
S148
S149
S150
Latitude"
32039.279' N
32°40.740'N
32°41.774'N
32°42.333'N
32°42.892'N
32°43.017'N
32°43.13rN
32°43.825'N
32°42.566'N
32°42.955'N
32°41.078'N
32°42.178'N
32°40.718'N
32°39.490'N
32°41.150'N
32°41.020'N
32°43.600'N
Longitude0
117°8.891'W
]17°13.843'W
117°13.865'W
117°13.713'W
117°13.082'W
117° 12.304' W
1 17° 1 1.623' W
117° 11.938' W
117°14.317'W
117°9.451'W
117°14.170'W
1 17° 11. 207' W
117°7.206'W
117°7.330W
117°8.240'W
11 7° 14.090' W
117°13.660'W
'97
'86
'67
Sample Types"
BG
DUP
BG
BG
BG
DUP
BG
S
S
S
S
S
S
L
D
D
D
D
D
D
D
E
E
E
E
Location11
Bkgd, Coronado, Shoreline
Sub Base, first Channel Marker, inside Channel
Sub Base, Second Channel Marker, inside Channel (R-14)
Shelter Island, third Channel Marker, inside Channel (G-17)
Shelter Island, fourth Channel Marker, inside Channel
North Island, fifth Channel Marker, inside Channel (R-20)
North Island, sixth Channel Marker, inside Channel
Bkgd, Lindbergh Field (Airport), Drinking Water, Commuter Terminal
Bkgd, Pt. Loma Inn (Hotel), Drinking Waterd
Bkgd, San Diego City, Drinking Water, CMC Ice Co.
Sub Base, Drinking Water, BOQ Laundry Room
North Island, Drinking Water, Last Chance Gedunk at J and K Pier
Naval Stn, Drinking Water
32nd St. Boundary South Between 14 and Marine Pier
32nd St. Boundary off Pier 1
Pt. Loma Boundary off shore
Bkgd, Pt. Loma, KFC (Kentucky Fried Chicken restaurant), Corner of Rosencranz and
[ngelowd
" Type of biota collected depended on availability. Several biota samples were collected at most sites. "DUP" and "BG" indicate duplicate and background sites, respectively. Duplicate means
two of the same type of samples were taken from the same location and were analyzed separately. All sample types taken at each location are indicated.
b Where distance is not specified, samples were taken as close to piers as situations permitted. When barges, ships, or other impediments prevented sampling at a specified location, the sample
was collected as close as possible to the specified location and the alternate location was noted.
0 Each location is identified by a unique location ID. Latitude and longitude were determined by Geographic Positioning System (GPS) units, with a typical accuracy of about 10 meters 2-
Distance Root Mean Square (DRMS), and were verified using NOAA nautical charts. Corresponding locations used by the Navy, the EPA 1986 survey (Se89), and the EPA 1967 survey (Ca67)
are indicated where appropriate.
'' The drinking water background for Point Loma was collected twice. Results for The Kentucky Fried Chicken restaurant sample and the Point Loma Inn sample are shown in the Appendix as S-
142-D-BG and S-150-D-BG, respectively.
NOTE.-Columns headed '97, '86, and '67 refer to location ID's used by the Navy in 1997, the EPA in the study done in 1986, and the EPA in the study done in 1967.
-------
2.1.2 Abbreviations
Sample Locations:
S Prefix for sampling location at San Diego Harbor.
S-Oxx Format for sites sampled by the Navy at San Diego Harbor.
S-1 xx Format for sites selected by USEPA-NAREL and NOT currently sampled by the
Navy at San Diego Harbor.
Sample Type:
S Harbor sediment (surface of harbor bottom)
C Sediment core
W Surface water from harbor
D Drinking water
L Shoreline sediment at low tide
BG Suffix for sample location that is a background location
DUP Duplicate
E External measurement
B Biota
Biota Suffixes:
Bxxx Suffix in a sample identifier that designates that the sample is marine biota,
BBSK Biota, brown split kelp
BBK Biota, brown kelp
BBPS Biota, black pine seaweed
BC Biota, crab
BSP Biota, sponge
BSC Biota, sea cucumber
BSF Biota, starfish
2.1.3 Background Locations
The background locations selected were Point Loma Park, Zuniga Point, and the South San
Diego Bay (Table 1 and Figs. 2.0 - 8.3). The locations for the background samples were
selected during the pre-survey visit to the study sites and were located at a distance far
enough away from the study sites so that operations there would not have impacted those
locations. Therefore, representative levels of existing radionuclides in the samples as a result
of natural radioactivity and worldwide fallout, from atmospheric nuclear tests or the
Chernobyl reactor accident in 1986, could be measured.
10
-------
2.1.4 Study Sites
The Naval Station, San Diego study site is located on the mainland (eastern) side of San
Diego Bay. The Naval Submarine Base, San Diego study site is located on the eastern side of
Point Loma, immediately north of Ballast Point. The Naval Air Station / North Island, San
Diego study site is located on North Island in the center of San Diego Bay. A description of
each sampling location and the type of sample collected are presented in Table 1 and shown
in Figs. 2.0 - 7.2.
2.2 Instrumentation
At selected locations, radiation surveys were performed using portable survey instruments to
detect gamma radiation. External radiation measurement locations are presented in Table 1
and shown in Figs. 8.0 - 8.3. External gamma radiation was measured with an Eberline
E-600 radiation survey instrument with a SPA-6 2"x 2" Nal(Tl) scintillation gamma probe, a
GENITRON GM survey instrument, and a Reuter-Stokes pressurized ionization chamber.
Underwater measurements of gamma radiation were performed using a 4.5" x 5" Nal(Tl)
detector and an EG&G ORTEC Nomad Plus-based multichannel analyzer. Instrument serial
numbers and calibration dates are available on the field data sheets.
2.3 Collection of Samples and Analysis
Intertidal sediment (basically the same as soil), harbor bottom sediment (grab and core),
water, and biota were collected. By previous agreement between USEPA-NAREL and the
Navy, most samples were split for routine independent comparisons by the Navy. Lists of the
samples collected from San Diego Bay are included in Table 1. For approximately 5% of
each type of sample, a quality control duplicate sample was collected; the duplicate (co-
located) samples are included in the referenced tables. All samples were analyzed for gross
alpha and beta activities and gamma-emitting radionuclides. Some of the samples were also
analyzed for radium-226 and isotopes of uranium, plutonium, and thorium.
Several changes to the proposed sampling locations (see EPA 97a) were necessary due to the
limited availability of certain sample types at the proposed locations. Biota samples were not
available in sufficient quantity at locations S-027, S-048, S-054, S-058, and S-076. Location
S-058 was designated as a duplicate site, but, due to limited availability of sediment and
biota, this location was dropped as a duplicate location for all sample types. Locations S-025
and S-021 were added as duplicate locations for all sample types. Location SI 19 was moved
from Crown Cove to a location further into the bay due to insufficient availability of biota
samples. The new location is 100 yards south of the shipwreck in the middle of the South
San Diego Bay off of Naval Station Pier 14.
Surface water samples were collected by lowering a Wildco horizontal alpha bottle to a depth
of three feet and then closing the bottle by releasing a "messenger" which activated a tripping
mechanism. This process was repeated until 4.5 L of water was obtained. About 4 L of
11
-------
water was poured into a plastic sample container and acidified to a pH of <2.0 with nitric
acid. The acidified water sample was analyzed for gross alpha and beta activities and
gamma-emitting radionuclides. Some of the samples were also analyzed for radium-226 and
isotopes of uranium, plutonium, and thorium. One half liter of the water sample was poured
into a glass container but was not acidified. This sample was analyzed for tritium. Seventeen
surface water samples were collected during the study. There were no visible solids in any of
the water samples, so it was not necessary to filter any of the water samples.
Drinking water samples were collected from seven taps representing the water supplies of the
Naval Station, San Diego, the Naval Submarine Base, San Diego, and the Naval Air
Station/North Island, San Diego. The 4.5 L drinking water sample was divided into two
sample containers that were prepared and analyzed in the same manner as the surface water
samples.
Seventy-seven harbor sediment and shoreline sediment samples were obtained during this
study. Harbor sediment samples were collected from boats using a Peterson dredge to sample
approximately the top 10 centimeters of sediment. Shoreline sediment samples were
collected with a small trowel. Fifteen sediment core samples were also collected to evaluate
the distribution of radioactivity in harbor bottom sediment. Core samples were collected by
divers who pushed two-inch diameter plastic tubes into the sediment as far as possible and
then capped the ends. The cores were frozen and sectioned in up to five segments per core,
with each segment having a minimum length of 5 centimeters.
Fifteen biota samples were collected at 13 sites. All biota samples were collected by divers.
The predominant species, both plant and animal, were collected at each location.
12
-------
u>
Fig. 2.0. SURFACE WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 2.1, 2.2, 2.3
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
SAN DIEGO
Sample location N
, BJ°ys
Ship Wreck
NAVAL
STATION
-------
Fig. 2.1. SURFACE WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 2.0, 2.2, 2.3
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
SAN DIEGO BAY
S082
^1u4V
4
1
* S081 t
|;.;v:r:;i'' ::,'.'••'':•. . •' • '"-?., • , -'.
|r BRAVO
I •- •' iDii±D '-: .- r':-.-|v:v :':;'-.- .•;.- ;::-'"-
N
@ Sample Location A
A Buoys /M
®S121
'S120
-------
Fig. 2.2.
SURFACE WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 2.0, 2.1, 2.3
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
© Sample Location
,L Buoys
SAN DIEGO
NORTH ISLAND
A
: . : '. ...'... ...
-------
Fig. 2.3. SURFACE WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 2.0, 2.1, 2.2
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
® Sample Location N
L Buoys
J Shipwreck
-------
Fig. 3.0. DRINKING WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURE 3.1
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
SAN DIEGO
(j> Sample Location N
4- Buoys
^ Snip Wrack
A
NAVAL
STATION
-------
Fig. 3.1. DRINKING WATER SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURE 3.0
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
S143
© Sample Location
,f. Buoys
»L ShlpWvech
N
A
SI 50
SAN DIEGO
NAVAL
STATION
S146
-------
Fig. 4.0. HARBOR SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 4.1, 4.2, 4.3, 4.4
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
0 Sample Localbn
& aioys
j£ Ship Wreck
SAN DIEGO
NAVAL
STATION
-------
,,,1.
NOTE: FROM NOAA CHART f 18773 - NOT FOR NAVIGATION.
SAN DIEGO BAY
S082
• S113
S123 S08I
-------
Fig. 4.2. HARBOR SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 4.0, 4.1, 4.3, 4.4
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
NORTHISLAND
-------
Fig. 4.3. HARBOR SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 4.0, 4.1, 4.2, 4.4
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
S127
SAN DIEGO BAY
®S059
© S058
NORTH ISLAND
-------
Fig. 4.4. HARBOR SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 4.0, 4.1, 4.2, 4.3
NOTE: FROM NOAA CHART* 18773 - NOT FOR NAVIGATION.
© Sample Location
A Buoys
*L Shipwreck
NAVAL
STATION
SAN DIEGO BAY
A
S119
-------
Fig. 5.0. SHORELINE SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 5.1, 5.2, 5.3
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
-------
Fig. 5.1. SHORELINE SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 5.0, 5.2, 5.3
NOTE: FROM NOAA CHART* 18773 - NOT FOR NAVIGATION.
to
Ui
'S134
DEGAUSING
PIER
&*
\
<&
'S132
WM
*^>
^
-------
Fig. 5.2. SHORELINE SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 5.0, 5.1, 5.3
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
SAN DIEGO BAY
S139
S137
S136
NORTH ISLAND
-------
Fig. 5.3. SHORELINE SEDIMENT SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 5.0, 5.1, 5.2
NOTE: FROM NOAA CHART* 18773 - NOT FOR NAVIGATION.
© Sample Location
i Buoys
2. ShlpWrack
*J
A
^
SAN DIEGO BAY
PACIFIC OCEAN
-------
oo
Fig. 6.0. CORE SAMPLING LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 6.1, 6.2, 6.3
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
Sample Location
Buoys
Shipwreck
A
SAN DIEGO
NAVAL
STATION
-------
Fig. 6.1. CORE SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 6.0, 6.2, 6.3
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
DEQAUSING
PIER
®S120
-------
Fig. 6.2. CORE SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 6.0, 6.1, 6.3
NOTE: FROM NOAA CHART# 18773 - NOT FOR NAVIGATION.
U
Sample Location
Buoys
Ship Wreck
NAVAL
STATION
Y
SAN DIEGO BAY
A
®S119
-------
Fig. 6.3. CORE SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 6.0, 6.1, 6.2
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
-------
Fig. 7.0. BIOTA SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 7.1, 7.2
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
UJ
to
® Sample Location
4 Buoys
tL Shipwreck
.
\
f/\
SANDIEGO
NAVAL
STATION
-------
Fig. 7.1. BIOTA SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 7.0, 7.2
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION,
u>
U)
-------
Fig. 7.2.
BIOTA SAMPLE LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 7.0, 7.1
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
SAN DIEGO BAY
© Sample localicn
4, Buiys
iZ. Shipltack
N
A
NAVAL
STATION
-------
U)
Fig. 8.0. EXTERNAL GAMMA MEASUREMENT LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 8.1, 8.2, 8.3,
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
SAN DIEGO
0 Sample Location '?
4 Buoys A
^ ShipWrack ^\
NAVAL
STATION
-------
ON
Fig. 8.1. EXTERNAL GAMMA MEASUREMENT LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 8.0, 8.2, 8.3
NOTE: FROM NOAA CHART #18773 - NOT FOR NAVIGATION.
4
SAN DIEGO BAY
NORTHISLAND
© Sample Location
•4 Buoys
*L Shipwreck
iv
A
S133
-------
Fig. 8.2. EXTERNAL GAMMA MEASUREMENT LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 8.0, 8.1, 8.3
NOTE: FROM NOAA CHART* 18773 - NOT FOR NAVIGATION.
U)
SAN DIEGO BAY
,3139.
NORTH ISLAND
-------
oo
Fig. 8.3. EXTERNAL GAMMA MEASUREMENT LOCATIONS, SAN DIEGO HARBOR SURVEY,
US EPA 1997. ALSO SEE FIGURES 8.0, 8.1, 8.2
NOTE: FROM NOAA CHART # 18773 - NOT FOR NAVIGATION.
SAN DIEGO BAY
S138
© Sample Location
^ Buoys
!/. ShipWrack
NAVAL
STATION
N
A
PIER 14
-------
3.0 RESULTS AND DISCUSSION
The radioanalytical results for the samples collected during this survey are reported in
Appendix A. The tables were generated from the NAREL computer database of
radioanalytical analysis results. The quality assurance/quality control (QA/QC) results for the
laboratory analysis and field sample QA/QC were presented in the Data Quality Packages
(EPA97c) for the sample analyses. The results were within acceptable limits as specified in
the Quality Assurance Project Plan for this survey. Some of the reported radionuclide results
are negative. Negative results occur when a previously determined background value is
subtracted from a sample value that is less than that of the background value. Negative
values represent a portion of the distribution of negative and positive values around zero for a
sample containing very little or no radioactivity.
3.1 Water Samples
Seventeen surface water samples, including two duplicates and three backgrounds, were
collected and the gamma analysis results are shown in Table A. 1. Only naturally occurring
radionuclides were detected in surface water samples collected from San Diego Harbor.
Tritium analyses were performed on all surface water samples, and the results for these
analyses are presented in Table A.2. All of these concentrations were below the minimum
detectable concentration (MDC) of about 160 pCi/L. Since the instrument background
sample had a higher concentration of tritium than most of the study samples, large net
negative values resulted for most of the study samples.
Results of the gross alpha and beta analyses of surface water samples are presented in Table
A.3. Surface water samples had concentrations similar to the concentrations found in the
background samples. The MDC values for gross alpha ranged from 350 to 600 pCi/L and the
MDC values for the gross beta ranged from 190 to 390 pCi/L. These MDC values are higher
than MDC values for freshwater samples due to the large amount of dissolved solids in the
-seawater.
Results of the Ra, U, Th, and Pu surface water samples are presented in Tables A.4, A.5, A.6,
and A.7, respectively. Surface water samples had concentrations similar to the
concentrations found in the background samples.
The gamma analysis results for the eight drinking water samples (including one duplicate and
three backgrounds) that were collected are shown in Table A. 8. Only naturally occurring
radionuclides were detected in the drinking water samples collected from San Diego Harbor.
Tritium analyses were performed on all drinking water samples and results are presented in
Table A.9. All of these concentrations were below the minimum detectable concentration of
about 160pCi/L.
39
-------
Results of the gross alpha and beta analyses of drinking water samples are presented in Table
A. 10. The drinking water samples had maximum gross alpha and beta concentrations of
5.6 ± 3.7 pCi/L and 7.1 ± 1.9 pCi/L and background maximum gross alpha and beta
concentrations of 10.5 ± 4.2 pCi/L and 8.0 ± 2.0 pCi/L. The National Drinking Water
Regulations (EPA76), 40 CFR 141.15, states the maximum allowed gross alpha particle
radioactivity in community water systems as 15 pCi/L, including radium-226 but excluding
radon and uranium. The highest gross alpha concentration of 5.6 ± 3.7 pCi/L for the San
Diego drinking water samples meets the drinking water regulation for the maximum allowed
gross alpha activity for community water systems.
Drinking water samples in this study were not analyzed for Ra, U, Th, or Pu because none of
these samples qualified among the highest gross alpha or gross beta. Background drinking
water samples were analyzed for Ra, U, Th or Pu because all analyses were performed on all
background water samples.
3.2 Sediment and Sediment Core Samples
Seventy-seven sediment samples were collected: 59 harbor bottom sediment samples,
including 6 duplicates; 15 shoreline sediment samples, including 2 duplicates; and 3
background harbor sediment samples. The gamma-analysis results are shown in Tables
A. 11 .a and A. 11 .b. No cobalt-60 was detected in any of the harbor or shoreline sediment
samples collected at San Diego Harbor. The cobalt-60 MDC for sediment samples ranged
from 0.012 to 0.035 pCi/g-dry due to varying detector efficiencies, varying background
counts, and sample size. All samples were counted on HPGe detectors for 1000 minutes. The
gamma-emitting radionuclides measured in the sediment samples were naturally occurring
radionuclides and fallout from atmospheric nuclear tests and the Chernobyl reactor accident
in 1986. No tritium analysis was performed on harbor and shoreline sediment samples.
Results of the gross alpha and beta analyses of harbor and shoreline sediment samples are
presented in Table A. 12. The maximum gross alpha and beta concentrations in the study
samples were 22.8 ± 8.8 pCi/g-dry and 25.8 ± 4.4 pCi/g-dry and 8.0 ± 5.6 pCi/g-dry and
19.5 ±3.6 pCi/g-dry in background samples. The harbor and shoreline sediment samples had
concentrations similar to the concentrations found in the background samples.
Results of the Ra, U, Th, and Pu analyses of harbor sediment samples are presented in Tables
A. 13, A. 14, A. 15, and A. 16. Harbor sediment samples had concentrations similar to the
concentrations found in the background samples. Shoreline sediment samples were not
analyzed for Ra, U, Th, or Pu because none of these samples qualified among the highest
gross alpha or gross beta.
40
-------
Sediment core samples were taken at 15 sites including 2 duplicate and 3 background sites.
Gamma analysis results for sediment core samples are shown in Tables A.17.a-d. Cobalt-60
was identified in one core sediment sample at the Naval Submarine Base at location S025 in
the segment depth between 20 cm and 35.5 cm. The concentration of cobalt-60 was 0.022 ±
0.012 pCi/g-dry weight. This concentration is very small compared to the cobalt-60
concentrations measured in sediment samples from the Submarine Base in the 1967 survey
(Ca67) and slightly lower than the sediment sample concentrations measured in the 1986
survey (Se89). During the 1967 survey, concentrations in sediment ranged from about
17 pCi/g-dry at the Sub Pier to 0.2 pCi/g-dry off the tip of Ballast Point. During the 1986
survey, concentrations in sediment ranged from about 0.015 to 0.047 pCi/g-dry at the Sub
Base and .030 pCi/g-dry at North Island. The decay of the cobalt-60 present in 1986 would
yield an expected concentration during this survey of about .003 to .011 pCi/g-dry. The
cobalt-60 measured in this survey is consistent with concentrations expected from radioactive
decay of the cobalt-60 levels found in the prior surveys. No cobalt-60 was detected in any of
the other sediment core samples collected at San Diego Harbor. All of the other
radionuclides identified in the core sediment samples can be attributed to naturally occurring
radionuclides, fallout from nuclear weapons testing, or the Chernobyl reactor accident in
1986. The radionuclide content of the core samples showed no significant differences with
depth or with the dredge samples taken in the same general area. Underwater gamma
scintillation probe measurements were also made at each core sampling site and no
radioactivity above background was detected. The probe had a much lower sensitivity than
the laboratory analysis of sediment samples and was only used as a gross screening
technique. If radioactivity above background had been detected with the underwater probe,
additional sediment samples would have been taken in the area to quantify the levels of
radionuclides in the harbor. No tritium analysis was performed on sediment core samples.
Results of the gross alpha and beta analyses of sediment core samples are shown in Tables
A. 18.a and A. 18.b. Gross alpha and beta concentrations in sediment core samples at San
Diego Harbor are similar to, but slightly elevated above concentrations found in sediment
core samples at the background locations.
Results of the Ra, U, Th, and Pu analyses of sediment core samples are presented in Tables
A. 19, A.20, A.21, and A.22, respectively. Sediment core samples had concentrations similar
to the concentrations found in the background samples.
3.3 Biota Samples
Fifteen biota samples were collected, including two duplicate and five background samples,
and the gamma analyses results are shown in Tables A.23.a and A.23.b. All of the
radionuclides identified in the biota samples were attributed to naturally occurring
radionuclides or fallout from nuclear weapons testing and the Chernobyl reactor accident in
1986. No tritium analysis was performed on biota samples.
41
-------
Results of the gross alpha and beta analyses of biota samples are presented in Table A.24.
Biota samples collected from San Diego Harbor had concentrations similar to the
concentrations found in the background samples.
Results of the Ra, U, Th, and Pu analyses of biota samples are presented in Tables A.25,
A.26, A.27 and A.28. Biota samples had concentrations similar to the concentrations found in
the background samples.
3.4 External Radiation Measurements
External radiation measurements were made along the shoreline and in the harbor with
emphasis on areas accessible to the public. Measurements were recorded every 10 minutes
during the survey with a GENITRON Instruments GammaTRACER GM-based survey
instrument and readings were downloaded at each external monitoring location. External
exposure readings were also taken for 5 to 10 minutes at each location with a Reuter Stokes
model RSS-112 pressurized ion chamber (PIC). An Eberline E-600 instrument with a SPA-6
2"x 2" Nal(Tl) probe was also used to measure variations in exposure rates along the
shoreline in the area of the monitoring locations. Results of the external radiation
measurements are shown in Table A.29 for San Diego Harbor locations and background
locations. External exposure readings at San Diego Harbor were similar to those at
background locations.
42
-------
4.0 QUALITY ASSURANCE/QUALITY CONTROL (QA/QC)
4.1 The Quality Assurance Program
The NAREL Quality Assurance (QA) Plan applies to all work performed at NAREL. The
purpose of the quality assurance program is to ensure that all measurements performed at
NAREL are valid, scientifically defensible, and of known precision and accuracy. The
NAREL Quality Assurance Project Plan (QAPP) for the U.S. Navy Environmental Studies
(EPA 97b) was prepared in accordance with the requirements described in "EPA
Requirements for Quality Assurance Project Plans for Environmental Data Operations"
(EPA94).
Quality Assurance/Quality Control (QA/QC) for the laboratory analyses performed for this
survey is detailed in the QAPP (EPA97b). Quality control (QC) samples are analyzed in
conjunction with routine samples to ensure the quality of the analytical results. Corrective
actions must be taken when it is shown by the results of QC samples that the radioanalytical
procedure is beyond predetermined control limits. Quality assurance is equally important in
the sample collection process. All documentation including chain-of-custody forms were
properly completed. Sampling equipment was in good working order and field measurement
equipment was calibrated and properly maintained.
4.2 Quality Control Samples
Field and laboratory quality control samples were included with site samples to help evaluate
the entire sampling and analysis process. Evaluation of QC samples allows assessment of the
accuracy and precision of the analytical procedures. In the field, for each matrix and batch of
up to 20 samples, a field duplicate was collected. The field duplicate results assess the
consistency of the sampling process and the representativeness of the samples collected.
In the laboratory, samples were grouped in batches for quality control purposes, with a
maximum of 20 samples per matrix per analysis type. For each batch, the laboratory
analyzed a reagent blank, a matrix spike, a matrix spike duplicate, and a laboratory replicate
sample. However, for gamma spectrometry and gross alpha and beta analyses, only a recount
(duplicate) or split was performed for batch QC. Results of these QC samples were reviewed
with sample results as part of the data verification and review process. Specific criteria for
acceptance were included in the QAPP (EPA97b). All blank results were maintained on
control charts by analyst, matrix, and analyte. Warning and rejection limits were used to
assess acceptance of the blank results. No substantial corrective actions were required during
the processing and analysis of the samples for this survey. Radioanalytical sample results
complied with the terms and conditions of the QAPP as certified by the NAREL Quality
Assurance Coordinator and Chief, Monitoring and Analytical Services Branch.
43
-------
4.3 Performance Evaluation Programs
It is NAREL policy to participate in many intralaboratory comparisons of radioactivity
measurements and cross-check programs. NAREL participates in intercomparison QA
studies with the EPA Office of Research and Development Environmental Science Division
(ORD-ESD) in Las Vegas; the National Institute of Science and Technology (NIST) in
Gaithersburg, MD; the World Health Organization (WHO) in Le Vesinet, France; the
International Atomic Energy Agency (IAEA), Vienna, Austria; and Analytics, a commercial
company in Atlanta, Georgia. The most comprehensive of these QA studies is that with
EPA's ORD-ESD Laboratory in Las Vegas, which supplies NAREL with thirty cross-check
samples a year in water, milk, and food.
44
-------
5.0 CONCLUSIONS
The radiological survey at the San Diego Harbor provides the basis for the following
conclusions:
1. Water samples from the San Diego Harbor contained radioactivity at concentrations
typically found naturally. No man-made radionuclides were detected.
2. No radioactivity was detected in the harbor and shoreline sediment samples other than
naturally occurring radionuclides or fallout from atmospheric nuclear tests and the
Chernobyl reactor accident in 1986.
3. A trace amount of cobalt-60 (0.022 ± 0.012 pCi/g-dry) was detected in the bottom segment
of one sediment core sample at the Naval Submarine Base at location S025 between Mike
Pier and Sierra Pier. No other radioactivity was detected in the sediment core samples
other than naturally occurring radionuclides or fallout from atmospheric nuclear tests and
the Chernobyl reactor accident in 1986.
4. No radioactivity was detected in the biota samples other than naturally occurring
radionuclides.
5. External radiation measurements did not detect any increased radiation levels above
natural background.
6. Based on this radiological survey, practices regarding nuclear-powered warship operations
at San Diego Harbor have resulted in no increases in radioactivity causing significant
population exposure or contamination of the environment.
45
-------
6.0 REFERENCES
Ca67 Cahill, D.F., McCurry, D.C., and Breakfield, W.D., Radiological Survey of Major
California Nuclear Ports. PB 178 728. U.S. Department of Health, Education, and
Welfare, Public Health Service Report, April 1967.
EPA94 U.S. Environmental Protection Agency, Quality Assurance Management Staff (now
Quality Assurance Division). EPA Requirements for Quality Assurance Project
Plans for Environmental Data Operations (draft interim final). EPA QA/R-5.
August 1994.
EPA76 U.S. Environmental Protection Agency. National Interim Primary Drinking Water
Regulations. EPA-570/9-76-003. Office of Water Supply. (See also Federal
Register, Vol. 41, No.133, "National Interim Primary Drinking Water Regulations,
Final Rule," pp. 28402-28409, 41 FR 28402, July 9, 1976.)
EPA97a U.S. Environmental Protection Agency. "Work Plan for Environmental Study at the
Naval Station, Naval Submarine Base and Naval Air Station/North Island San
Diego." Montgomery, Ala.: National Air and Radiation Environmental Laboratory,
March 8, 1997.
EPA97b U.S. Environmental Protection Agency. "Quality Assurance Project Plan for U.S.
Navy Environmental Studies." Montgomery, Ala.: National Air and Radiation
Environmental Laboratory, March 8, 1997.
EPA97c U.S. Environmental Protection Agency. "Data Quality Package." Montgomery,
Ala.: National Air and Radiation Environmental Laboratory, July 1997.
Se89 ' Semler, M..O., and Blanchard, R.L. Radiological Survey of San Diego Bay. EPA
520/5-88-019. Montgomery, Ala.: National Air and Radiation Environmental
Laboratory, March 1989.
47
-------
APPENDIX
Radioanalytical Results
for
San Diego Harbor Samples
March 1997
49
-------
TABLE A.I
Gamma Spectrometry Results for Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.01939
SDH 97. 01 940
SDH 97 .01 941
SDH 97.01938
SDH 97.02092
SDH 97.02093
SDH 97.02094
SDH 97. 02096
SDH 97.02100
SDH 97.021 01
SDH 97 .02 108
SDH 97.02 107
SDH 97.021 10
SDH 97.021 11
"ield Sample
Number
S063-W
S027-W
S025-W
S025-W-DUP
S076-W
S048-W
S054-W
S058-W
S-115-W
S-081-W
S021-W
S021-W-DUP
Slll-W
S082-W
(
U4mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
348 ± 298
ND
226Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2MPb
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
6.2 ± 6.8
ND
ND
ND
214Bi
ND
ND
ND
ND
ND
ND
ND
ND
5.5 ± 7.6
ND
ND
ND
ND
ND
Activity
]Ci / L ± 2a counting error)
224Ra
ND
ND
ND
ND
ND
ND
ND
ND
32 ±49
ND
ND
ND
ND
ND
2IJpb
ND
ND
ND
ND
ND
ND
ND
ND
3.8 ±5.1
ND
9.5 ± 7.0
ND
ND
ND
2<»Ti
ND
ND
ND
ND
3.0 ± 3.6
ND
ND
ND
ND
ND
ND
ND
ND
ND
w'Co
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
w'Co
MDA
6.8
5.9
6.9
10.8
6.1
11.4
5.4
6.2
6.2
5.0
6.7
5.7
5.4
9.5
4"K
333 ± 53
296 ± 47
330 + 52
319 ± 84
320 ± 53
330 ± 85
313 ±48
300 ± 53
301 ± 52
296 ± 44
311 ±52
310 ±48
347 ± 48
318 + 71
BACKGROUND SAMPLES
SDH 97.02095
SDH 97.02102
SDH 97. 02 109
SI19-W-BG
S121-W-BG
S120-W-BG
ND
ND
ND
52.0 ± 68.3
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5.7
6.0
9.8
307 ± 45
329 ± 50
337 ±81
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.2
Tritium Results for Surface Water Samples taken in San Diego Harbor
K>
STUDY SAMPLES
NAREL Samole ID
97.01939P
97.01940G
97.01941H
97.01938N
97.02092V
97.02093W
97.02094X
97.02096Z
97.02 100B
97.02101C
97.02108K
97.02 107J
97.02 HOD
97.021 HE
BACKGROUND SAM
97.02095Y
97.02102D
97.02109L
Field Sample Number
S-063-W
S-027-W
S-025-W
S-025-W-DUP
S-076-W
S-048-W
S-054-W
S-058-W
S-115-W
S-081-W
S-021-W
S-021-W-DUP
S-lll-W
S-082-W
Tritium Activity
(pCi/L ± 2o counting error)
Tritium
29 ± 84
-63 ± 80
-92 ± 79
-51 ± 80
-17 ± 82
.46 ± 81
-19 ± 82
-48 ± 81
-17 ± 82
-42 ± 93
-52 ± 92
-75 ± 91
-30 ± 93
-65 ± 91
[PLES
S-119-W-BG
S-121-W-BG
S-120-W-BG
-48 ± 80
-60 ± 94
-59 ± 94
-------
TABLE A.3
Gross Alpha and Gross Beta Results for Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97.01939
SDH 97 .01 940
SDH 97.01941
SDH 97.01938
SDH 97.02092
SDH 97.02093
SDH 97 .02094
SDH 97 .02096
SDH 97.02100
SDH 97.02101
SDH 97.02108
SDH 97.02 107
SDH 97. 021 10
SDH 97 .021 11
Field Samcle Number
S-063-W
S-027-W
S-025-W
S-025-W-DUP
S-076-W
S-048-W
S-054-W
S-058-W
S-115-W
S-081-W
S-021-W
S-021-W-DUP
S-lll-W
S-082-W
Activity
(pCi / L ± 2o counting error)
Gross Aloha
72 ± 194
59 ± 192
119 ± 263
-44 ± 154
-165 ± 234
-105 ± 156
-41 ± 181
42 ± 205
14 ± 212
194 ± 270
164 ± 286
-28 ± 215
-117 ± 123
-21 ± 222
Gross Beta
506 ± 153
502 ± 152
532 ± 184
501 ± 151
516 ± 182
514 ± 175
580 ± 183
552 ± 252
381 ± 232
661 ± 257
' 470 ± 251
491 ± 262
473 ± 251
429 ± 250
BACKGROUND SAMPLES
SDH 97.02095
SDH 97 .02102
SDH 97.02 109
S-119-W-BG
S-121-W-BG
S-120-W-BG
0 ± 168
51 ± 257
59 ± 227
494 ± 188
332 ± 232
728 ± 260
-------
TABLE A.4
Radium-226 Results for Drinking and Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samde ID
97.02094X
97.02101C
97.02 HOD
97.01941H
Field Samole Number
S-054-W
S-081-W
S-lll-W
S-025-W
Activity
(pCi / L ± 2a counting error)
226Ra
0.123 ± 0.014
0.120 ± 0.014
0.101 ± 0.014
0.099 ± 0.014
BACKGROUND SAMPLES
97.02095Y
97.02 102D
97.02 109L
97.02 113G
97.02 114H
97.021 15J
S-119-W-BG
S-121-W-BG
S120-W-BG
S143-D-BG
S142-D-BG
S146-D-BG
0.130 ± 0.015
0.108 ± 0.013
0.108 ± 0.014
0.138 ± 0.014
0.147 ± 0.015
0.199 ± 0.039
Note: Drinking water and surface water samples were batched together as one matrix. Per the
approved sampling plan, only a percentage of samples based on the highest gross alpha and
gross beta concentrations were analyzed for radium-226 content. None of the study
drinking water samples contained the highest gross alpha or gross beta concentrations.
Therefore, uranium analysis was not conducted for study drinking water samples. All
background samples were analyzed for radium-226.
-------
TABLE A.5
Uranium Results for Drinking and Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97.02094
SDH 97.02 101
SDH 97 .021 10
SDH 97. 01 941
Field S article Number
S-054-W
S-081-W
S-lll-W
S-025-W
Activity
(pCi / L ± 2o counting error)
234U
1.81 ± 0.36
1.54 ± 0.33
1.35 ± 0.21
5.80 ± 1.34
235U
0.11 ± 0.10
0.15 ± 0.11
0.11 ± 0.06
0.37 ± 0.36
238U
1.15 ± 0.28
1.44 ± 0.32
1.17 ± 0.19
3.00 ± 0.94
BACKGROUND SAMPLES
SDH 97.02095
SDH 97 .02 102
SDH 97.02109
SDH 97.02 113
SDH 97.021 14
SDH 97.02 115
S-119-W-BG
S-121-W-BG
S-120-W-BG
S-143-D-BG
S-142-D-BG
S-146-D-BG
2.87 ± 0.56
1.68 ± 0.35
1.68 ± 0.35
3.04 ± 0.45
2.67 ± 0.39
3.07 ± 0.66
0.12 ± 0.16
0.08 ± 0.08
0.20 ±0.13
0.23 ± 0.12
0.19 ± 0.10
0.19 ± 0.18
1.84 ± 0.45
1.10 ± 0.27
1.18 ± 0.29
1.92 ± 0.34
1.71 ± 0.30
1.70 ± 0.48
Ul
Note: Drinking water and surface water samples were batched together as one matrix. Per the approved sampling plan, only a
percentage of samples based on the highest gross alpha and gross beta concentrations were analyzed for uranium content.
None of the study drinking water samples contained the highest gross alpha or gross beta concentrations. Therefore,
uranium analysis was not conducted for study drinking water samples. All background samples were analyzed for uranium.
-------
TABLE A.6
Thorium Results for Drinking and Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.02094
SDH 97.02 101
SDH 97.02 110
SDH 97.01941
BACKGROUND SA1
SDH 97.02095
SDH 97.02102
SDH 97.02109
SDH 97.021 13
SDH 97.02 114
SDH 97.02 115
Field Sample
Number
S-054-W
S-081-W
S-lll-W
S-025-W
VIPLES
S-119-W-BG
S-121-W-BG
S-120-W-BG
S-143-D-BG
S-142-D-BG
S-146-D-BG
Activity
(pCi / L ± 2o counting error)
227Th
-0.009 ± 0.035
0.171 ± 0.654
0.013 ± 0.040
0.050 ± 0.236
0.007 ± 0.049
0.022 ± 0.069
0.092 ± 0.204
0.038 ± 0.051
0.000 ± 0.035
-0.012 ± 0.121
228Th
-0.091 ± 0.070
0.442 ± 1.038
-0.139 ± 0.053
0.297 ± 0.445
-0.161 ± 0.113
-0.257 ± 0.139
-0.301 ± 0.208
-0.040 ± 0.068
0.059 ± 0.090
0.054 ± 0.249
230Th
0.019 ± 0.034
0.357 ± 0.357
0.027 ± 0.042
0.382 ± 0.258
0.097 ± 0.068
0.142 ±0.111
0.173 ±0.156
0.077 ± 0.050
0.059 ± 0.046
0.177 ± 0.129
232Th
0.043 ± 0.051
0.208 ± 0.320
0.023 ± 0.036
0.025 ± 0.080
0.041 ± 0.045
0.006 ± 0.038
0.105 ± 0.117
0.015 ± 0.021
0.000 ± 0.019
0.000 ± 0.044
Note: Drinking water and surface water samples were batched together as one matrix. Per the approved sampling plan, only a
percentage of samples based on the highest gross alpha and gross beta concentrations were analyzed for thorium content.
None of the study drinking water samples contained the highest gross alpha or gross beta concentrations. Therefore, thorium
analysis was not conducted for study drinking water samples. All background samples were analyzed for thorium.
-------
TABLE A.7
Plutonium Results for Drinking and Surface Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97.02094
SDH 97.02101
SDH 97.02 110
SDH 97.01941
Field Sample Number
S-054-W
S-081-W
S-lll-W
S-025-W
BACKGROUND SAMPLES
SDH 97.02095
SDH 97.02 102
SDH 97 .02109
SDH 97 .021 13
SDH 97 .021 14
SDH 97.021 15
S-119-W-BG
S-121-W-BG
S-120-W-BG
S143-D-BG
S142-D-BG
S146-D-BG
Activity
(pCi / L ± 2o counting error)
238pu
0.029 ± 0.063
0.057 ±0.618
0.026 ± 0.085
0.049 ±0.138
239/240p
0.000 ± 0.034
0.057 ±0.180
0.019 ± 0.059
0.073 ±0.104
0.076 ± 0.174
0.006 ± 0.075
0.000 ±0.176
0.010 ± 0.030
0.021 ± 0.030
0.071 ± 0.084
0.000 ± 0.048
0.006 ± 0.042
0.000 ± 0.000
-0.008 ± 0.009
-0.002 ± 0.004
0.011 ± 0.035
Note: Drinking water and surface water samples were batched together as one matrix. Per the approved sampling plan,
only a percentage of samples based on the highest gross alpha and gross beta concentrations were analyzed for
plutonium content. None of the study drinking water samples contained the highest gross alpha or gross beta
concentrations. Therefore, plutonium analysis was not conducted for study drinking water samples. All
background samples were analyzed for plutonium.
-------
TABLE A.8
Gamma Spectrometry Results for Drinking Water Samples taken in the vicinity of San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.01937
SDH 97.02 104
SDH 97.02105
SDH 97.021 15
BACKGROUND SAj
SDH 97.02098
SDH 97.02099
SDH 97.021 13
SDH 97.021 14
Field Sample
Number
S-145-D
S-144-D
S-144-D-DUP
S-146-D
Activity
(pCi / L ± 2o counting error)
226Ra
ND
ND
ND
ND
214Bi
ND
ND
ND
ND
2!2pb
ND
ND
6.6 ± 5.4
ND
208-TM
ND
ND
ND
ND
fi"Co
ND
ND
ND
ND
6"Co
MDA
6.1
5.3
6.3
4.5
4"K
24 ±35
ND
ND
ND
VfPLES
S-141-D-BG
S-142-D-BG
S143-D-BG
S-150-D-BG
ND
ND
66 ±73
ND
ND
ND
10.1 ±6.3
ND
ND
ND
ND
ND
ND
ND
ND
1.9 ±3.2
ND
ND
ND
ND
6.1
6.3
5.4
5.5
ND
ND
ND
ND
00
ND = Radionuclide was not detected by gamma Spectrometry,
The drinking water background for Point Loma was collected twice. The KFC (Kentucky Fried Chicken restaurant) sample results are
denoted in the results tables as S-142-D-BG although it is also a background location. The second sample was taken at the Point Loma
Inn, and the sample results are denoted in the results tables as S-150-D-BG.
-------
TABLE A.9
Tritium Results for Drinking Water Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
97.01937M
97.02104F
97.02 105G
97.02115J
Field Samole Number
S-145-D
S-144-D
S-144-D-DUP
S-146-D
Tritium Activity
(pCi/L ± 2a counting error)
Tritium
-41 ± 84
-48 ± 92
-56 ± 92
44 ± 96
BACKGROUND SAMPLES
97.02098B
97.02099C
97.02 113G
97.021 14H
S-141-D-BG
S-142-D-BG
S-143-D-BG
S-150-D-BG
-31 ± 82
-34 ± 83
22 ± 95
56 ± 97
The drinking water background for Point Loma was collected twice. The KFC
(Kentucky Fried Chicken restaurant) sample results are denoted in the results
tables as S-142-D-BG although it is also a background location. The second sample
was taken at the Point Loma Inn, and the sample results are denoted in the results
tables as S-150-D-BG.
-------
TABLE A.10
Gross Alpha and Gross Beta Results for Drinking Water Samples taken in the vicinity of San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97.01937
SDH 97.02104
SDH 97.02105
Field Sample Number
S-145-D
S-144-D
S-144-D-DUP
Activity
(pCi / L ± 2o counting error)
Gross Aloha
5.6 ± 3.7
5.0 ± 3.0
4.3 ± 2.6
Gross Beta
3.9 ± 1.8
5.7 ± 1.9
7.1 ± 1.9
BACKGROUND SAMPLES
SDH 97.021 15
SDH 97.02098
SDH 97.02099
SDH 97.021 13
SDH 97.02 114
S-146-D-BG
S-141-D-BG
S-142-D-BG
S-143-D-BG
S-150-D-BG
2.2 ± 3.2
10.5 ± 4.2
3.5 ± 2.7
2.8 ± 2.5
2.1 ± 2.2
7.9 ± 2.1
8.0 ± 2.0
6.5 ± 2.0
6.4 ± 2.0
5.4 ± 1.9
The drinking water background for Point Loma was collected twice. The KFC (Kentucky Fried Chicken
restaurant) sample results are denoted in the results tables as S-142-D-BG although it is also a background
location. The second sample was taken at the Point Loma Inn, and the sample results are denoted in the
results tables as S-150-D-BG.
-------
TABLE A.I La
Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples taken in San Diego Harbor
Uranium and Actinium Chain Gamma Emitting Radionuclides
STUDY SAMPLES
NAREL Sample ID
'ield Sample Number
Activity
(pCi / g-dry weight ± 2o counting error)
234Th
I34mpa
2MRa
214Pb
2L4Bi
235U
223Ra
STUDY SAMPLES - HARBOR SEDIMENT
SDH 97.01918
SDH 97.01919
SDH 97.01924
SDH 97.01920
SDH 97.01923
SDH 97.01925
SDH 97.01926
SDH 97.01927
SDH 97.01933
SDH 97.01934
SDH 97.01942
SDH 97.01935
SDH 97.01943
SDH 97.0 1944
SDH 97.0 1945
SDH 97.01946
SDH 97.01947
SDH 97.02040
SDH 97.02041
SDH 97.02042
SDH 97.02043
SDH 97.02044
SDH 97.02045
SDH 97.02046
SDH 97.02048
SDH 97.02049
SDH 97.02050
SDH 97.02051
S-107-S
S-108-S
S-108-S-DUP
S-113-S
S-020-S
S-105-S
S-109-S
S-112-S
S-027-S
S-063-S
S-025-S
S-025-S-DUP
S-084-S
S-023-S
S-122-S
S-019-S
S-106-S
S-048-S
S-054-S
S-075-S
S-074-S
S-073-S
S-077-S
S-102-S
S-076-S
S-058-S
S-IOO-S
S-101-S
ND
0.29 ±0.14
0.34 ±0.15
0.54 ±0.1 6
0.25 ±0.13
0.72 ±0.14
0.91 ± 0.15
ND
0.34 ±0.14
0.41 ±0.14
0.50 ±0.1 6
0.81 ±0.14
0.68 ±0.15
0.85 ±0.13
ND
0.79 ±0.16
1.22 ±0.17
0.41 ±0.12
0.33 ±0.16
ND
ND
ND
ND
0.32 ±0.16
ND
0.74 ±0.19
0.41 ±0.16
1.04 ±0.16
1.29 ± 1.27
1.48 ± 1.17
0.99 ± 1.03
1.25 ± 1.04
1.44± 1.21
1.32 ± 1.00
1.22 ± 1.20
ND
1.69 + 0.82
ND
ND
1.53 ±0.99
ND
1.77 ± 1.01
0.99 ± 1.00
0.73 ± 0.89
ND
1.06 ± 0.88
ND
ND
ND
ND
1.24 ± 1.23
1.38 ± 1.10
ND
1.68 ± 1.01
ND
1.41 ±0.70
1.05 ±0.22
0.89 ± 0.19
0.87 ± 0.21
1.09 ±0.20
1.01 ± 0.22
0.87 ± 0.17
1.12 ±0.21
0.78 ± 0.21
1.09 ± 0.20
1.33 ±0.22
1.25 ±0.23
0.95 ± 0.20
0.63 ± 0.20
0.91 ± 0.18
0.63 ± 0.20
0.64 ±0.1 8
0.72 ± 0.21
1.10 ±0.19
1.31 ±0.22
1.01 ±0.23
1.45 ±0.28
1.33 ±0.26
1.10 + 0.23
1.41 +0.21
1.44 ±0.28
1.35 ±0.23
1.12 + 0.28
0.75 +0.18
0.413 ± 0.021
0.317 ± 0.020
0.311 ±0.020
0.432 ± 0.020
0.404 ± 0.021
0.351 ±0.019
0.483 ± 0.021
0.350 ± 0.020
0.511 ±0.020
0.520 ± 0.020
0.493 ± 0.023
0.405 ±0.019
0.302 ± 0.020
0.389 ± 0.017
0.286 ± 0.019
0.317 ±0.016
0.302 ± 0.020
0.394 ±0.01 8
0.514 + 0.023
0.395 + 0.021
0.540 ± 0.028
0.51 7 ±0.025
0.431 ±0.024
0.488 ± 0.022
0.505 ± 0.026
0.600 ± 0.021
0.485 + 0.029
0.335 + 0.016
0.400 + 0.023
0.308 ± 0.022
0.305 ± 0.022
0.393 ± 0.024
0.378 + 0.022
0.338 + 0.021
0.442 ± 0.022
0.318 + 0.022
0.474 ± 0.020
0.481 ± 0.021
0.467 ± 0.026
0.397 ± 0.019
0.277 ± 0.022
0.353 +0.018
0.247 + 0.020
0.298 ± 0.016
0.281 ± 0.022
0.376 ±0.018
0.483 ± 0.028
0.347 ± 0.023
0.484 ± 0.030
0.454 ± 0.025
0.382 ± 0.022
0.435 + 0.025
0.453 + 0.026
0.559 + 0.022
0.452 + 0.033
0.288 ± 0.016
ND
ND
ND
ND
ND
0.053 ± 0.010
ND
ND
ND
0.080 ± 0.013
0.077 ± 0.014
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.068 + 0.014
0.089 ±0.013
0.089 ± 0.017
0.083 ± 0.014
0.068 ± 0.017
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.077 ± 0.044
ND
ND
ND
ND
-------
TABLE A.ll.a - Continued
STUDY SAMPLES
NAREL Sample ID
SDH 97.02052
SDH 97.02053
SDH 97.02054
SDH 97.02055
SDH 97.02056
SDH 97.02057
SDH 97.02058
SDH 97.02059
SDH 97.02063
SDH 97.02064
SDH 97.02065
SDH 97.02066
SDH 97.02067
SDH 97.02071
SDH 97.02073
SDH 97.02072
SDH 97.02074
SDH 97.02075
SDH 97.02076
SDH 97.02077
SDH 97.02080
SDH 97.02082
SDH 97.02081
SDH 97.02083
SDH 97.02084
SDH 97.02085
SDH 97.02086
SDH 97.02088
SDH 97.02090
SDH 97.02089
SDH 97.02091
Field Sample Number
S-103-S
S-078-S
S-104-S
S-118-S
S-118-S-DUP
S-117-S
S-002-S
S-114-S
S-080-S
S-02B-S
S-052-S
S-059-S
S-055-S
S-081-S
S-01A-S
S-01A-S-DUP
S-03A-S
S-115-S
S-116-S
S-045-S
S-126-S
S-021-S
S-021-S-DUP
S-lll-S
S-082-S
S-127-S
S-123-S
S-110-S
S-125-S
S-125-S-DUP
S-124-S
Activity
(pCi / g-dry weight ± 2o counting error)
M4Th
0.97 ±0.21
ND
0.24 + 0.12
0.72 ± 0.24
0.69 ±0.17
0.68 ±0.19
ND
ND
ND
0.64 ± 0.20
0.39 ± 0.20
ND
ND
ND
ND
ND
0,34 + 0.19
0.65 ±0.18
ND
ND
ND
ND
0.76 ± 0.22
0.17 ±0.11
ND
ND
ND
0.54 ±0.14
ND
0.67 ± 0.21
ND
iMmpa
1.21 ± 1.25
ND
ND
ND
ND
1.19 ± 1.43
ND
ND
ND
1.52 ± 1.14
ND
1.00± 1.06
1 .90 ± 1 .46
1.04 ± 1.13
ND
0.98 ± 0.85
ND
0.63 ± 0.68
ND
ND
ND
0.87 ± 0.93
ND
ND
ND
ND
ND
1.04± 1.27
ND
ND
ND
™Ra
1.54 ± 0.22
1.49 ± 0.23
ND
1.75 ±0.25
1.37 ±0.27
1.38 ±0.23
1 .43 ± 0.24
0.90 ± 0.24
1.24 ±0.23
1.40 + 0.25
1.30 + 0.31
1.24 ± 0.21
1.53 ±0.30
0.63 ± 0.23
0.91 ± 0.23
0.71 ±0.19
1.12 ±0.24
0.93 ±0.18
1.40 ±0.28
0.96 ± 0.20
1.09 ± 0.23
1.08 ± 0.24
1.17 +0.22
0.84 ± 0.22
0.85 ± 0.26
1.14 ±0.22
0.39 ±0.14
1 .05 ± 0. 1 8
0.76 ± 0.23
0.61 ± 0.23
0.42 + 0.22
214Pb
0.573 + 0.024
0.517 ±0.023
0.407 + 0.021
0.561 ± 0.026
0.468 + 0.029
0.496 ± 0.025
0.463 ± 0.023
0.393 ± 0.023
0.476 + 0.026
0.486 + 0.026
0.497 + 0.032
0.466 ± 0.021
0.544 + 0.027
0.330 ± 0.022
0.395 ± 0.023
0.347 ±0.01 7
0.465 ± 0.025
0.350 ±0.017
0.589 + 0.027
0.382 ± 0.022
0.476 ± 0.025
0.453 ± 0.023
0.458 ± 0.024
0.369 ± 0.021
0.466 ± 0.024
0.501 + 0.024
0.196 ±0.014
0.401 ± 0.020
0.337 ± 0.021
0.347 ± 0.023
0.284 ± 0.022
2I4BJ
0.508 + 0.025
0.472 ± 0.025
0.373 ± 0.022
0.466 ± 0.029
0.432 ± 0.032
0.441 + 0.026
0.450 + 0.024
0.360 ± 0.022
0.422 ± 0.029
0.452 ± 0.028
0.443 + 0.036
0.445 + 0.023
0.527 ± 0.028
0.312 ± 0.022
0.356 ± 0.026
0.322 ± 0.016
0.408 ± 0.025
0.331 ±0.017
0.509 ± 0.029
0.328 + 0.025
0.429 ± 0.029
0.399 ± 0.022
0.410 ± 0.026
0.357 ± 0.021
0.411 ±0.024
0.448 ± 0.025
0.176 ± 0.013
0.392 ± 0.022
0.292 ± 0.022
0.345 ± 0.027
0.268 ± 0.021
235U
0.093 ± 0.014
ND
0.085 ± 0.014
0.107 ±0.015
0.0867 ±0.0159
ND
0.0873 ± 0.0144
ND
0.0767 + 0.0140
ND
ND
0.0763 ± 0.0129
ND
ND
ND
ND
ND
0.0569 ± 0.0107
0.0845 ± 0.0168
0.0604 ±0.0119
ND
ND
ND
0.0518 ±0.0133
ND
0.0687 ± 0.0129
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.087 ± 0.057
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.ll.a - Continued
STUDY SAMPLES
NAREL Sample ID IpieldSampleNuinber
Activity
(pCi / g-dry weight ± 2o counting error)
234Th
134mpa
mRa
2,4pb
214Bi
235U
2»Ra
STUDY SAMPLES - SHORELINE SEDIMENT
SDH 97 .01921
SDH 97.01922
SDH 97.01928
SDH 97.01929
SDH 97.01930
SDH 97 .01931
SDH 97.01932
SDH 97.02062
SDH 97.02068
SDH 97.02069
SDH 97.02070
SDH 97.02079
S-128-L
S-128-L-DUP
S-135-L
S-136-L
S-137-L
S-139-L
S-139-L-DUP
S-130-L
S-131-L
S-132-L
S-134-L
S-140-L
ND
ND
ND
ND
ND
ND
ND
0.65 ±0.1 5
0.31 ±0.18
ND
ND
ND
0.78 ± 0.86
ND
ND
ND
ND
ND
ND
ND
1.19 ± 1.01
ND
ND
0.75 ± 0.65
0.75 ±0.18
0.76 + 0.20
0.62 ±0.19
0.39 ±0.18
0.49 ±0.16
0.42 ±0.18
0.43 ±0.16
0.83 ± 0.17
0.92 ± 0.21
0.50 ±0.1 8
0.27 ±0.14
0.48 ±0.16
0.293 ± 0.017
0.419 ±0.019
0.257 ±0.018
0.212 ±0.017
0.325 ± 0.017
0.193 ±0.017
0.156 ± 0.015
0.358 ± 0.015
0.548 ± 0.020
0.296 ± 0.017
0.132 ±0.012
0.253 ± 0.015
0.274 ±0.018
0.375 ± 0.020
0.220 ± 0.020
0.189 ±0.017
0.305 ± 0.020
0.197 ±0.019
0.138 ±0.016
0.315 ±0.015
0.487 ± 0.020
0.265 ± 0.019
0.118 ±0.011
0.230 ± 0.014
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
BACKGROUND SAMPLES
SDH 97.02047
SDH 97.02060
SDH 97.02061
SDH 97 .02087
SDH 97.01936
SDH 97.02078
S-119-S-BG
S-120-S-BG
S-121-S-BG
S-129-L-BG
S-133-L-BG
S-138-L-BG
ND
ND
ND
ND
ND
0.44 ±0.1 7
ND
ND
ND
ND
ND
ND
0.69 + 0.18
0.40 ±0.17
1.41 ±0.26
0.54 + 0.18
0.44 ±0.1 9
1.25 ±0.20
0.350 ± 0.017
0.188 ± 0.017
0.657 ± 0.026
0.326 ± 0.018
0.201 ±0.017
0.612 + 0.020
0.324 ± 0.017
0.157 ±0.018
0.575 ± 0.026
0.288 ± 0.017
0.193 ±0.019
0.580 ± 0.021
ND
ND
0.087 ±0.016
ND
ND
ND
ND
ND
0.069 ± 0.058
ND
ND
ND
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.ll.b
Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples taken in San Diego Harbor
Thorium Chain and other Gamma Emitting Radionuclides
STUDY SAMPLES
NAREL ID
Field
Sample
Number
STUDY SAMPLES - HA
SDH 97.01918
SDH 97.01919
SDH 97.01924
SDH 97.0 1920
SDH 97.0 1923
SDH 97.0 1925
SDH 97.01926
SDH 97.01 927
SDH 97.01933
SDH 97.01934
SDH 97.01942
SDH 97.0 1935
SDH 97. 01 943
SDH 97. 01 944
SDH 97 .01945
SDH 97.01 946
SDH 97.01947
SDH 97.02040
SDH 97.02041
SDH 97.02042
SDH 97.02043
SDH 97.02044
SDH 97.02045
SDH 97.02046
SDH 97.02048
SDH 97 .02049
S-107-S
S-108-S
S-108-S-DUP
S-113-S
S-020-S
S-105-S
S-109-S
S-112-S
S-027-S
S-063-S
S-025-S
S-025-S-DUP
S-084-S
S-023-S
S-122-S
S-019-S
S-106-S
S-048-S
S-054-S
S-075-S
S-074-S
S-073-S
S-077-S
S-102-S
S-076-S
S-058-S
Activity
(pCi / g-dry weight ± 2a counting error)
228Ra
RBOR SEDIM
0.432+0.032
0.331 ±0.027
0.356±0.027
0.393 ±0.030
0.362±0.033
0.379±0.028
0.487 ±0.029
0.374±0.030
0.453 ±0.026
0.532 ±0.027
0.513±0.034
0.4 15 ±0.024
0.228+0.027
0.359±0.022
0.287±0.028
0.263 ±0.020
0.270+0.026
0.472+0.025
0.682±0.034
0.448+0.030
0.582 ±0.041
0.577 ±0.037
0.476 ±0.030
0.644±0.035
0.616+0.038
0.569 ±0.027
224Ra
212pb
212Bi
208-pj
7Be
"'Co
6"Co
MDC
l37Cs
4"K
ENTS
0.60+0.22
0.26+0.19
0.34 ±0.21
0.38 ±0.24
0.45 ±0.21
0.26 +0.22
0.44 ±0.22
0.28 ±0.1 9
0.49 ±0.23
0.30 ±0.22
0.46 ±0.24
0.57 ±0.20
0.21 ±0.20
0.32+0.19
0.34+0.21
0.24+0.18
0.24 ±0.24
0.63 ±0.20
0.8 1 ±0.25
0.55 ±0.22
0.53 ±0.28
0.69 ±0.27
0.69 ±0.25
0.41 ±0.26
0.660+0.29
0.534 ±0.23
0.546+0.024
0.388+0.021
0.383+0.021
0.485+0.022
0.476±0.024
0.460±0.020
0.636±0.023
0.438±0.021
0.555±0.021
0.628±0.022
0.564±0.023
0.518±0.019
0.350±0.022
0.484±0.019
0.317+0.021
0.348±0.017
0.356+0.020
0.588±0.020
0.837±0.026
0.598±0.023
0.733+0.035
0.723±0.029
0.675±0.026
0.762±0.025
0.772±0.029
0.728±0.024
0.47+0.13
0.34+0.13
0.31 ±0.14
0.38+0.13
0.45 ±0.1 4
0.26 ±0.1 3
0.61 ±0.11
0.45 ±0.1 2
0.55 ±0.1 2
0.69 ±0.11
0.60 ±0.1 4
0.53 ±0.09
0.27 ±0.1 2
0.49 ±0.09
0.26 ±0.12
0.36+0.09
0.30 ±0.13
0.59 ±0.09
0.74 ±0.14
0.61 ±0.1 2
0.72 ±0.1 9
0.67+0.15
0.66 ±0.1 5
0.63 ±0.14
0.737 ±0.1 2
0.701 ±0.10
0.178+0.012
0.131+0.011
0.125+0.012
0.159+0.012
0.1 50 ±0.0 13
0.1 52 ±0.0 12
0.209 ±0.01 2
0.1 42 ±0.0 12
0.1 84 ±0.011
0.211 ±0.012
0.1 94 ±0.0 14
0.1 67 ±0.0 11
0.1 15 ±0.011
0.162+0.011
0.1 04 ±0.0 11
0.102+0.009
0.116+0.011
0.191 ±0.010
0.272+0.014
0.191+0.012
0.232 ±0.0 17
0.237 ±0.0 1 5
0.206 ±0.0 13
0.247 ±0.0 14
0.255+0.015
0.2 13 ±0.0 12
ND
ND
0.1 35 ±0.076
0.060 ±0.058
ND
ND
0.332 ±0,084
0.223 ±0.073
ND
ND
ND
0.203 ±0.067
0.1 45 ±0.079
0.537 + 0.081
ND
0.293 ±0.068
0.238 ±0.088
0.096 ±0.085
ND
0.1 07 ±0.077
ND
ND
0.236 ±0.092
ND
ND
0.106 + 0.074
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.020
0.021
0.023
0.021
0.020
0.019
0.019
0.024
0.018
0.018
0.025
0.015
0.027
0.016
0.018
0.014
0.020
0.014
0.025
0.021
0.031
0.021
0.022
0.021
0.023
0.017
0.1110 ±0.0107
0.0420 ±0.0083
0.0415 +0.0087
0.0482 ±0.0088
0.0717 ±0.0096
0.0391 ±0.0083
0.1220 ±0.0115
0.0527 +0.0099
0.1160 +0.0104
0.1120 +0.0096
0.0963 ±0.0117
0.0643 ±0.0083
0.0253 +0.0088
0.0737 +0.0082
0.0159 ±0.0081
0.0328 ±0.0069
0.0234 ±0.0092
0.0696 ±0.0081
0.1380 ±0.0119
0.0795 ±0.0098
0.0663 ±0.0125
0.1010 ±0.0119
0.0694 ±0.0097
0.1420 ±0.0114
0.1030 +0.0124
0.1170 ±0.0097
13.50+0.30
14.30+0.29
13.70 ±0.29
14.50 ±0.30
12.70 ±0.30
12.30 ±0.27
16.40+0.30
13.00 ±0.29
15.90+0.28
16.40 ±0.29
14.80 ±0.34
14.20+0.26
13.70 ±0.35
15.30 ±0.26
15.00 ±0.29
14.00 ±0.23
14.00+0.31
15. 00 ±0.26
1 6. 00 ±0.34
13.60+0.29
14.50+0.40
15.90 ±0.33
12.70 ±0.27
17.30 ±0.30
15.20+0.31
17.30+0.28
-------
TABLE A.ll.b - Continued
STUDY SAMPLES
VfAREL ID
SDH 97.02050
SDH 97.02051
SDH 97.02052
SDH 97.02053
SDH 97.02054
SDH 97.02055
SDH 97.02056
SDH 97 .02057
SDH 97.02058
SDH 97. 02059
SDH 97.02063
SDH 97.02064
SDH 97.02065
SDH 97 .02066
SDH 97.02067
SDH 97 .02071
SDH 97.02073
SDH 97 .02072
SDH 97.02074
SDH 97.02075
SDH 97.02076
SDH 97.02077
SDH 97.02080
SDH 97.02082
SDH 97.02081
SDH 97.02083
SDH 97.02084
SDH 97.02085
SDH 97.02086
Field
ample
lumber
-100-S
-101-S
-103-S
S-078-S
S-I04-S
S-118-S
S-118-S-DUP
S-I17-S
S-002-S
S-114-S
S-080-S
S-02B-S
S-052-S
S-059-S
S-055-S
S-081-S
S-01A-S
S-OIA-S-DUP
S-03A-S
S-115-S
S-116-S
S-045-S
S-I26-S
S-021-S
S-021-S-DUP
S-lll-S
S-082-S
S-I27-S
S-I23-S
Activity
(pCi / g-drv weight ± 2o counting error)
228Ra
0.5 18 ±0.041
0.295±0.020
0.560±0.031
0.624±0.033
0.5 15 ±0.033
0.639+0.039
0.565 ±0.042
0.611+0.034
0.697 ±0.034
0.378±0.031
0.424+0.035
0.640±0.036
0.634+0.047
0.503 ±0.031
0.629+0.039
0.279 ±0.031
0.383±0.033
0.377 ±0.022
0.513+0.033
0.353+0.021
0.562±0.040
0.407 ±0.034
0.454+0.036
0.402 ±0.030
0.4I7±0.031
0.341+0.027
0.383±0.030
0.467 ±0.032
O.I45±0.017
224Ra
0.58+0.28
0.18±0.17
0.45+0.26
0.55 ±0.24
0.41 ±0.1 9
0.35 ±0.23
0.65 +0.30
0.58+0.27
0.56+0.24
0.32 ±0.21
0.52 ±0.27
0.56 ±0.30
0.61 ±0.34
0.51 ±0.21
0.81+0.30
0.45+0.24
0.39+0.24
0.37 ±0.21
0.64 ±0.29
0.26 ±0.21
0.68+0.29
0.34+0.24
0.42 ±0.24
0.44+0.22
0.44 ±0.26
0.34 ±0.25
0.35 +0.24
0.49 +0.28
ND
2.2pb
0.589+0.026
0.365+0.017
0.673±0.025
0.710±0.025
0.697±0.025
0.793±0.029
0.680±0.028
0.722±0.026
0.792±0.026
0.457+0.022
0.585+0.027
0.692±0.027
0.823+0.033
0.632+0.024
0.838+0.031
0.370±0.022
0.470+0.024
0.432±0.018
0.581+0.025
0.400±0.018
0.844±0.029
0.499±0.023
0.566+0.025
0.517±0.024
0.557+0.025
0.435+0.022
0.526+0.025
0.575+0.024
0.174±0.014
212Bi
0.49 ±0.1 7
0.25 ±0.10
0.63 ±0.1 3
0.63 ±0.14
0.65 ±0.1 3
0.65 ±0.1 6
0.50 ±0.19
0.61 ±0.1 3
0.78 ±0.1 3
0.44+0.13
0.46 ±0.1 5
0.72 ±0.15
0.73 ±0.20
0.56+0.13
0.74+0.16
0.35+0.11
0.39 ±0.16
0.37 ±0.09
0.38 ±0.13
0.36 ±0.10
0.74 ±0.1 5
0.43 ±0.14
0.47+0.16
0.51 ±0.1 3
0.45 ±0.1 2
0.41+0.12
0.53+0.13
0.64 ±0.1 2
0.13+0.09
2<18T1
0.196 ±0.018
0.1 19 ±0.009
0.2 16 ±0.0 14
0.229+0.013
0.234 ±0.0 13
0.263 ±0.0 17
0.227 ±0.018
0.227+0.014
0.261 ±0.013
0.148 ±0.013
0.1 93 ±0.0 15
0.227 ±0.0 15
0.271 ±0.020
0.204+0.012
0.281 ±0.016
0.1 16 ±0.012
0.158±0.014
0.139+0.010
0.193 ±0.013
0.141 ±0.009
0.257 ±0.017
0.1 54 ±0.0 1 4
0.1 75 ±0.0 16
0.174+0.013
0.171 ±0.014
0.1 59 ±0.0 12
0.163+0.013
0.1 79 ±0.0 13
0.055 ±0.007
7Be
ND
0.1 64 ±0.069
ND
ND
ND
ND
ND
ND
ND
ND
0.233 ±0.1 19
ND
ND
ND
0.091+0.099
ND
ND
0.080 ±0.068
ND
ND
ND
ND
ND
O.I30±0.112
ND
0.151 +0.088
0.173±0.125
ND
ND
6"Co
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
60Co
MDC
0.030
0.013
0.021
0.023
0.019
0.031
0.035
0.024
0.021
0.020
0.031
0.025
0.034
0.023
0.024
0.023
0.031
0.015
0.023
0.015
0.030
0.028
0.032
0.021
0.023
0.021
0.026
0.021
0.014
137Cs
0.0474 +0.0146
0.0242 ±0.0074
0.0759 ±0.0104
0.1320 +0.0111
0.1080 +0.0105
0.1 160 ±0.0151
0.0966 +0.0154
0.0957 +0.0118
0.1200 +0.0106
0.0338 +0.0091
0.0543 ±0.0133
0.1210 +0.0127
0.1500 ±0.0199
0.1080 ±0.0098
0.1100 +0.0124
0.0268 ±0.0080
0.0388 ±0.0109
0.0453 ±0.0072
0.1 020 ±0.01 19
0.0482 ±0.0080
0.0593 ±0.0138
0.0297 ±0.0105
0.0778 ±0.0137
0.0586 ±0.0091
0.0619 ±0.0105
0.0635 +0.0095
0.0712 ±0.0110
0.0772 ±0.0115
0.0105 +0.0052
40K
13.6 ±0.5
13.70 ±0.23
15.50 ±0.32
16.20 ±0.31
13.30 ±0.29
15.80+0.41
15. 00 ±0.48
16.30 ±0.34
13.20 ±0.28
14.60 ±0.30
15.70 ±0.42
16. 10 ±0.34
16.30+0.54
15.60+0.30
16.60 ±0.34
14.30 ±0.29
14.90+0.40
14.60 ±0.24
15.40+0.33
13. 10 ±0.23
15.60 ±0.40
13.70+0.37
14.90+0.39
14.40+0.30
14.30 ±0.33
12.50 ±0.28
14.60 ±0.30
4.00 ±0.29
3.60+0.22
o,
-------
TABLE A.ll.b - Continued
STUDY SAMPLES
NAREL ID
SDH 97.02088
SDH 97.02090
SDH 97.02089
SDH 97.02091
Field
Sample
Number
S-110-S
S-125-S
S-125-S-DUP
S-124-S
STUDY SAMPLES - SHORELB
SDH 97. 01 921
SDH 97. 01 922
SDH 97. 01 928
SDH 97 .01 929
SDH 97.01930
SDH 97.01 931
SDH 97.01932
SDH 97.02062
SDH 97.02068
SDH 97.02069
SDH 97.02070
SDH 97.02079
S-128-L
S-128-L-DUP
S-I35-L
S-136-L
S-137-L
S-139-L
S-139-L-DUP
S-130-L
S-131-L
S-132-L
S-134-L
S-140-L
Activity
(pCi / g-dry weight ± 20 counting error)
228Ra
0.380±0.029
0.316±0.027
0.276 ±0.034
0.233±0.028
224Ra
0.54 ±0.22
0.34 ±0.19
ND
ND
212Pb
0.475±0.020
0.362+0.023
0.383±0.024
0.297+0.022
2l2Bi
0.56+0.10
0.20+0.12
0.30 ±0.14
0.35+0.13
208JJ
0.157 ±0.012
0.128+0.012
0.1 20 ±0.01 5
0.1 00 ±0.01 2
7Be
ND
ND
ND
ND
""Co
ND
ND
ND
ND
6"Co
MDC
0.023
0.022
0.031
0.020
I37CS
0.0570 ±0.0091
0.0418 ±0.0083
0.0458 ±0.0112
0.0287 ±0.0084
4(,K
13.20+0.31
14.00 ±0.29
14.10+0.39
13. 90 ±0.30
NE SEDIMENT
0.274 ±0.024
0.372±0.028
0.201 ±0.026
0.1 58 ±0.023
0.1 49 ±0.024
0.1 22 ±0.021
0.132±0.019
0.328+0.019
0.438+0.026
0.252+0.024
0.103±0.015
0.245 ±0,0 17
0.37 ±0.1 9
0.30±0.21
ND
ND
0.24 ±0.1 5
ND
ND
0.27+0.17
0.34 ±0.20
ND
ND
0.24 ±0.1 8
0.281+0.017
0.411+0.020
0.250±0.018
0.178+0.017
0.176+0.015
0.169±O.OI6
O.I 42+0.0 15
0.372±0.016
0.533±0.021
0.280±0.018
0.111±0.012
0.263±0.015
0.29+0.10
0.39+0.10
0.22 ±0.11
0.26+0.08
0.12±O.I2
0.12+0.07
0.12+0.07
0.36+0.08
0.47*0.12
0.21+0.11
0.11+0.06
0.27 ±0.08
0.097 +0.009
0.133+0.011
0.081+0.010
0.058 +0.009
0.051 ±0.009
0.053 ±0.009
0.043 +0.008
0.108+0.008
O.I 68 ±0.0 11
0.089 ±0.0 10
0.035 ±0.007
0.081 +0.007
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.018
0.019
0.025
0.017
0.023
0.017
0.016
0.012
0.019
0.018
0.012
0.013
ND
ND
ND
0.0062 ±0.0058
0.0175 ±0.0074
ND
ND
0.0052 +0.0054
ND
0.0059 ±0.0056
0.0043 +0.0043
ND
BACKGROUND SAMPLES
SDH 97.02047
SDH 97.02060
SDH 97.02061
SDH 97.02087
SDH 97.01936
SDH 97 02078
S-119-S-BG
S-120-S-BG
S-121-S-BG
S-129-L-BG
S-133-L-BG
S-138-L-BG
0.332±0.020
0.150+0.023
0.608±0.035
0.309 ±0.024
0.1 24 ±0.023
0.680±0.027
0.23+0.17
0.20 ±0.20
0.62 ±0.27
0.300 ±0.1 8
0.20 ±0.1 7
0.54 ±0.20
0.392+0.018
0.172+0.017
0.739±0.027
0.314±0.018
0.195±0.018
0.774+0.022
0.45 ±0.08
0.16±0.11
0.77+0.13
0.319+0.08
0.21+0.11
0.74 ±0.11
0.1 24 ±0.009
0.060 ±0.0 10
0.237+0.014
0.1 10 ±0.009
0.057 ±0.009
0.248 ±0.012
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.014
0.019
0.023
0.018
0.020
0.017
0.0238 ±0.0061
ND
ND
ND
0.0101 ±0.0066
ND
13.50+0.25
12.80+0.25
12.80+0.33
13. 20 ±0.25
13.10+0.32
13.20 ±0.28
12.30+0.24
11. 80 ±0.20
10.20+0.22
14.60 ±0.26
14.10 ±0.21
12.60 ±0.21
11. 90 ±0.22
14.60+0.26
14.50 ±0.29
14. 10 ±0.25
15.00 ±0.28
10 80 +0 23
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.12
Gross Alpha and Gross Beta Results for Harbor and Shoreline Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samnle TD Ipield Samnle Number
Activity
(pCi / g-dry weight ± 2o counting error)
Gross Alnha
Gross Re.ra
STUDY SAMPLES - HARBOR SEDIMENTS
SDH 97.01918
SDH 97.01919
SDH 97.01924
SDH 97.01920
SDH 97.01923
SDH 97.01925
SDH 97.01926
SDH 97.01927
SDH 97.01933
SDH 97.01934
SDH 97.01942
SDH 97.01 935
SDH 97.01943
SDH 97.01944
SDH 97.01945
SDH 97.01946
SDH 97.01947
SDH 97.02040
SDH 97.02041
SDH 97.02042
SDH 97.02043
SDH 97.02044
SDH 97.02045
SDH 97.02046
SDH 97.02048
SDH 97.02049
SDH 97.02050
SDH 97. 02051
SDH 97.02052
S-107-S
S-108-S
S-108-S-DUP
S-113-S
S-020-S
S-105-S
S-109-S
S-112-S
S-027-S
S-063-S
S-025-S
S-025-S-DUP
S-084-S
S-023-S
S-122-S
S-019-S
S-106-S
S-048-S
S-054-S
S-075-S
S-074-S
S-073-S
S-077-S
S-102-S
S-076-S
S-058-S
S-100-S
S-101-S
S-103-S
17.7 ± 7.7
4.5 ± 4.7
5.3 ± 5.8
15.1 ± 7.7
8.2 ± 5.4
8.4 ± 5.7
8.4 ± 5.4
4.5 ± 5.0
20.5 ±8.0
22.8 ± 8.8
13.4 ± 6.3
13.7 ± 7.0
2.6 ± 6.2
10.3 ± 5.8
4.6 ± 5.3
8.3 ± 6.6
8.7 ± 6.1
4.7 ± 5.9
6.8 ± 7.5
11.7 ± 6.2
11.6 ± 6.4
12.3 ± 6.5
6.6 ± 5.5
12.4 ± 6.5
8.0 ± 5.4
14.3 ± 7.1
13.1 ± 6.8
8.5 ± 5.7
5.8 ± 4.9
19.7 ± 4.2
17.7 ± 4.2
17.8 ± 4.2
18.8 ± 4.2
19.7 ± 4.2
18.9 ± 3.7
19.6 ± 3.7
19.2 ± 3.8
22.7 ± 3.9
25.6 ± 4.2
23.0 + 3.8
19.4 ± 3.7
17.0 ± 3.9
18.0 ± 4.2
16.2 ± 4.2
17.4 ± 4.1
18.0 ± 4.1
18.3 ± 4.0
25.8 ± 4.4
20.3 ± 3.7
18.8 ± 3.8
17.5 ± 3.6
14.4 ± 3.3
21.4 ± 3.7
19.0 ± 3.7
23.3 ± 4.0
19.8 ± 3.6
16.8 ± 3.5
16.5 ± 3.5
-------
TABLEA.12 -Continued
o\
00
STUDY SAMPLES
NARRI.SamnlelD
SDH 97.02053
SDH 97.02054
SDH 97.02055
SDH 97.02056
SDH 97.02057
SDH 97.02058
SDH 97.02059
SDH 97.02063
SDH 97.02064
SDH 97.02065
SDH 97.02066
SDH 97.02067
SDH 97.02071
SDH 97.02073
SDH 97.02072
SDH 97.02074
SDH 97.02075
SDH 97.02076
SDH 97.02077
SDH 97.02080
SDH 97.02082
SDH 97.02081
SDH 97.02083
SDH 97.02084
SDH 97.02085
SDH 97.02086
SDH 97.02088
SDH 97.02090
SDH 97.02089
SDH 97.02091
Field Samnle, Number
S-078-S
S-104-S
S-118-S
S-118-S-DUP
S-117-S
S-002-S
S-114-S
S-080-S
S-02B-S
S-052-S
S-059-S
S-055-S
S-081-S
S-01A-S
S-01A-S-DUP
S-03A-S
S-115-S
S-116-S
S-045-S
S-126-S
S-021-S
S-021-S-DUP
S-I11-S
S-082-S
S127-S
S123-S
S-110-S
S-125-S
S-125-S-DUP
S-124-S
Activity
(pCi / g-dry weight ± 2a counting error)
Gross Alnha
13.4 ± 6.9
15.0 ± 6.9
15.2 ± 7.8
12.9 ± 7.1
20.8 ± 8.8
9.8 + 6.6
1.3 ± 6.3
10.0 ± 5.8
10.8 ± 6.5
14.4 ± 7.2
15.1 ± 6.8
8.7 ± 5.5
3.8 ± 4.2
10.4 ± 6.3
7.7 ± 5.9
8.9 ± 5.8
7.5 ± 5.5
15.4 ± 6.9
2.4 ± 4.8
2.9 ± 4.6
11.1 ± 5.8
11.1 ± 6.0
19.1 + 8.0
9.8 ± 6.4
4.2 ± 4.8
4.9 ± 4.7
9.5 ± 6.5
7.3 ± 5.4
8.7 ± 5.9
5.1 ± 4.6
Gross Beta
21.1 ± 3.8
20.8 ± 3.7
22.3 ± 4.2
20.3 + 4.0
22.3 ± 4.4
18.3 ± 4.4
16.5 ± 4.1
22.4 ± 3.9
20.5 ± 3.8
21.7 ± 3.8
20.7 ± 3.7
19.2 ± 3.5
18.2 ± 3.6
20.0 ± 3.8
14.7 ± 3.6
16.1 ± 3.5
19.7 ± 3.7
22.1 ± 3.8
15.5 ± 3.5
19.5 ± 3.6
19.9 ± 3.6
17.7 ± 3.5
22.7 ±3.9
18.2 ± 3.6
18.8 ± 3.6
19.2 ± 3.6
21.3 ± 3.9
17.4 ± 3.5
21.4 ± 3.9
19.2 ± 3.6
-------
TABLE A. 12 -Continued
ON
STUDY SAMPLES
NAREL Samnle ID Ipield Samnle Number
STUDY SAMPLES - SHORELINE SEDIMENTS
SDH 97.01921
SDH 97.01922
SDH 97 .01928
SDH 97.01929
SDH 97.01930
SDH 97.01 931
SDH 97.01932
SDH 97.02062
SDH 97.02068
SDH 97.02069
SDH 97.02070
SDH 97.02079
S-128-L
S-128-L-DUP
S-135-L
S-136-L
S-137-L
S-139-L
S-139-L-DUP
S-130-L
S-131-L
S-132-L
S-134-L
S-140-L
Activity
(pCi / g-dry weight ± 2o counting error)
Gross Alnha
Gross Reta
4.0 ± 3.7
3.3 ± 5.5
4.3 ± 4.9
-1.0 ± 3.2
-0.2 ± 2.5
0.3 ± 3.3
0.1 ± 3.5
3.9 ± 3.9
11.1 ± 6.4
3.8 ± 4.4
0.6 ± 3.4
-0.8 ± 3.2
16.2 ± 3.9
16.7 ± 3.8
12.3 ± 3.3
12.1 ± 3.1
17.8 ± 3.5
15.3 ± 3.4
13.3 ± 3.3
11.7 ± 3.1
15.0 ± 3.4
17.4 ± 3.6
12.6 ± 3.2
16.1 ± 3,4
BACKGROUND SAMPLES
SDH 97.02047
SDH 97.02060
SDH 97.02061
SDH 97.02087
SDH 97.01936
SDH 97.02078
S-119-S-BG
S-120-S-BG
S-121-S-BG
S-129-L-BG
S-133-L-BG
S-138-L-BG
7.7 ± 5.2
0.0 ± 3.8
,_ 6.1 ± 5.9
0.8 ± 3.0
8.0 ± 5.6
1.8 + 4.1
19.0 ± 3.5
15.5 ± 3.9
17.2 ± 4.0
19.5 ± 3.6
14.8 ± 3.4
145 + 34
-------
TABLE A.13
Radium-226 Results for Harbor Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL S amde ID
97.01934J
97.02041H
97.02054N
97.02057R
97.02063P
97.02083U
Field Sample Number
S-063-S
S-054-S
S-104-S
S-117-S
S-080-S
S-lll-S
Activity
(pCi / g-dry weight ± 2o counting error)
226 Ra
0.869 ± 0.048
0.394 ± 0.034
0.580 ± 0.040
0.496 ± 0.038
0.390 ± 0.034
0.531 ± 0.036
BACKGROUND SAMPLES
97.02047P
97.02060L
97.02061M
S-119-S-BG
S-120-S-BG
S-121-S-BG
0.449 ± 0.034
0.245 ± 0.029
0.597 ± 0.040
Note: Harbor Sediment samples were batched together as one matrix. Per the approved sampling plan,
only a percentage of samples based on the highest gross alpha and gross beta concentrations were
analyzed for radium-226 content. None of the Harbor Sediment water samples contained the
highest gross alpha or gross beta concentrations. Therefore, radium-226 analysis was not
conducted for study Harbor Sediment samples. All background samples were analyzed for
radium-226.
-------
TABLE A.14
Uranium Results for Harbor Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97 .01934
SDH 97. 02041
SDH 97.02054
SDH 97.02057
SDH 97 .02063
SDH 97.02083
Field Samole Number
S-063-S
S-054-S
S-104-S
S-117-S
S-080-S
S-lll-S
Activity
(pCi / g-dry weight ± 2o counting error)
234U
0.90 ± 0.17
0.89 ± 0.13
1.09 ± 0.17
1.04 ± 0.23
0.61 ± 0.12
0.66 ± 0.17
235U
0.103 ± 0.059
0.028 ± 0.023
0.047 ± 0.035
0.082 ± 0.067
0.023 ± 0.029
0.048 ± 0.055
238U
0.77 ±0.15
1.00 ± 0.14
0.92 ±0.15
0.97 ± 0.22
0.48 ±0.11
0.66 ± 0.17
BACKGROUND SAMPLES
SDH 97.02047
SDH 97 .02060
SDH 97.02061
S-119-S-BG
S-120-S-BG
S-121-S-BG
0.59 ±0.11
0.36 ± 0.09
0.62 ±0.12
0.042 ± 0.032
0.039 ± 0.032
0.054 ± 0.036
0.42 ± 0.10
0.26 ± 0.08
0.55 ±0.11
Note: Harbor sediment samples were batched together as one matrix. Per the approved sampling plan, only a percentage
of samples based on the highest gross alpha and gross beta concentrations were analyzed for uranium content.
None of the study harbor sediment samples contained the highest gross alpha or gross beta concentrations.
Therefore, uranium analysis was not conducted for study harbor sediment samples. All background samples were
analyzed for uranium.
-------
TABLE A.15
Thorium Results for Harbor Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.01934
SDH 97.02041
SDH 97. 02054
SDH 97.02057
SDH 97.02063
SDH 97.02083
BACKGROUND SAMP]
SDH 97.02047
SDH 97.02060
SDH 97.02061
Field Sample Number
S-063-S
S-054-S
S-104-S
S-117-S
S-080-S
S-lll-S
Activity
(pCi / g-dry weight ± 2o counting error)
227Th
0.095 ± 0.083
0.034 ± 0.037
0.078 ± 0.059
0.132 ± 0.083
0.037 ± 0.033
0.056 ± 0.071
228Th
0.69 ± 0.19
0.89 ±0.13
0.92 ±0.16
0.50 ±0.15
0.70 ±0.11
0.41 ± 0.17
230Th
0.65 ± 0.14
0.82 ± 0.12
0.76 ± 0.13
0.71 ± 0.14
0.50 ± 0.08
0.60 ± 0.14
232Th
0.83 ± 0.16
1.03 ± 0.13
1.03 ± 0.15
0.88 ±0.16
0.72 ± 0.10
0.59 ± 0.14
LRvS
S-119-S-BG
S-120-S-BG
S-121-S-BG
0.003 ± 0.021
0.003 ± 0.026
0.106 ± 0.055
0.39 ± 0.12
0.29 ± 0.09
0.47 ± 0.10
0.39 ± 0.09
0.23 ± 0.06
0.45 ± 0.08
0.45 ± 0.10
0.27 ± 0.07
0.43 ± 0.08
to
Note: Harbor sediment samples were batched together as one matrix. Per the approved sampling plan, only a percentage
of samples based on the highest gross alpha and gross beta concentrations were analyzed for thorium content. None
of the study harbor sediment samples contained the highest gross alpha or gross beta concentrations. Therefore,
thorium analysis was not conducted for study harbor sediment samples. All background samples were analyzed for
thorium.
-------
TABLE A.16
Plutonium Results for Harbor Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sanrole ID
SDH 97.01934
SDH 97.02041
SDH 97 .02054
SDH 97.02057
SDH 97.02063
SDH 97.02083
BACKGROUND SAM
SDH 97.02047
SDH 97.02060
SDH 97.02061
Field Samole Number
S-063-S
S-054-S
S-104-S
S-117-S
S-080-S
S-lll-S
Activity
(pCi / g-dry weight ± 2o counting error)
238pu
-0,016 ± 0.012
0.009 ± 0.017
0.009 ± 0.022
0.002 ±0.019
-0.010 ± 0.016
0.009 ± 0.054
239/240p
0.014 ± 0.025
0.004 ±0.012
0.003 ± 0.020
0.000 ± 0.014
0.001 ± 0.008
0.009 ± 0.026
PLES
S-119-S-BG
S-120-S-BG
S-121-S-BG
-0.005 ± 0.033
0.003 ± 0.032
-0.005 ± 0.024
0.032 ± 0.026
-0.011 ± 0.008
-0.002 ± 0.004
Note: Harbor sediment samples were batched together as one matrix. Per the approved sampling plan,
only a percentage of samples based on the highest gross alpha and gross beta concentrations were
analyzed for plutonium content. None of the study harbor sediment samples contained the highest
gross alpha or gross beta concentrations. Therefore, plutonium analysis was not conducted for
study harbor sediment samples. All background samples were analyzed for plutonium.
-------
TABLE A.17.a
Gamma Spectrometry Results for Core Sediment Samples taken in San Diego Harbor
Uranium and Actinium Chain Gamma Emitting Radionuclides - Displayed by Core
STUDY SAMPLES
NAREL Sample ID
SDH 97.02134
SDH 97.02135
SDH 97.02136
SDH 97 07137
SDH 97.02 125
SDH 97.02 126
.SDH 97 021 27
SDH 97.02138
SDH 97.02139
SDH 97.02 140
«jpH 97 02141
SDH 97. 02 142
SDH 97.02 143
SDH97.02144
SDH 9707145
SDH 97.02 1 50
SDH 97.021 51
SDH 97.02 152
SDH 97 07153
SDH 97.02 154
SDH 97.02 155
SDH 97 .02 156
SDH 97 0? 1 57
SDH 97.02 158
SDH 97. 02 159
SDH 97 07160
SDH 97 .02 164
SDH 97.02165
SDH 97.02166
SDH 97.02167
SDH 97.02 168
Field Sample Number
S-021-C, TOP 5 CM
S-021-C, 2ND 5 CM
S-021-C, 3RD 5 CM
S-07J-C ROTTOM IDSTM
S-021-C-DUP.TOP5CM
S-021-C-DUP, 2ND5CM
S-021-C-DUP BOTTOM R 5 CM
S-076-C, TOP 5 CM
S-076-C, 2ND 5 CM
S-076-C, 3RD 5 CM
S-076-C ROTTOM 1 2 CM
S-058-C, TOP 5 CM
S-058-C, 2ND 5 CM
S-058-C, 3RD 5 CM
S-058-C ROTTOM 9 CM
S-054-C, TOP 5 CM
S-054-C, 2ND 5 CM
S-054-C, 3RD 5 CM
S-054-C BOTTOM 1 2 CM
S-048-C, TOP 5 CM
S-048-C, 2ND 5 CM
S-048-C, 3RD 5 CM
S-048-C ROTTOM 17 CM
S-063-C, TOP 5 CM
S-063-C, 2ND 5 CM
S-063-C ROTTOM 8 CM
S-025-C, TOP 5 CM
S-025-C, 2ND 5 CM
S-025-C, 3RD 5 CM
S-025-C, 4TH 5 CM
S-025-C, BOTTOM 15.5 CM
Activity
(pCi / g-dry weight ± 2a counting error)
2«Th
0.81 ± 0.43
ND
1.01 ± 0.40
0 43 +015
0.65 ± 0.29
ND
ND
ND
0.63 ± 0.47
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.50 ± 0.30
0.89 ± 0.43
1 14 + 041
ND
ND
ND
ND
0.54 ± 0.40
ND
ND
0.45 ± 0.20
'•"'"Pa
5.2 ± 5.9
ND
ND
20 + 20
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
226Ra
0.99 ± 0.78
1.18 + 0.51
0.85 ± 0.56
ND
0.93 ± 0.47
0.89 ± 0.35
071 + 0 7<>
0.61 ± 0.78
ND
1.08 + 0.74
i 33 + n 40
0.78 ± 0.72
0.94 ± 0.78
0.73 ± 0.83
075 + ni4
1.01 + 1.09
1.19 ± 0.97
1 .23 + 0.84
1 37 + 0 36
0.88 ± 0.73
1.30 ± 0.52
1.82 + 0.73
1 67 + 0 SO
ND
1.42 ± 0.63
1 54 + 0 3R
1.06 ±0.71
0.95 ± 0.64
1.39 ±0.65
0.81 ± 0.55
ND
2,4pb
0.301 + 0.085
0.405 ± 0.046
0.401 + 0.051
0 398 + 0037
0.376 + 0.048
0.329 + 0.033
0255 + 0024
ND
0.399 + 0.080
0.345 ± 0.067
n 373 +o 036
0.312 ± 0.076
0.412 ± 0.075
0.347 ± 0.083
0361 + 0033
0.413 ± 0.097
0.389 ±0.104
0.445 ± 0.076
0.525 + 0 038
0.247 ± 0.073
0.479 ± 0.052
0.500 ± 0.063
0 4R6 + 0 043
0.389 + 0.073
0.456 ± 0.060
0 50(1 + 0 043
0.386 ± 0.066
0.446 + 0.070
0.485 ± 0.059
0.556 ± 0.045
0.603 ± 0.030
2l4Bi
0.239 ±0.108
0.424 ± 0.060
0.349 ± 0.062
0333 + 0034
0.326 + 0.056
0.278 + 0.039
0235 + 0076
0.192 ± 0.090
0.280 ± 0.096
0.331 ± 0.073
0335 + 0043
0.353 ± 0.089
0.389 + 0.099
0.323 ± 0.089
0317 + 0041
0.338 ± 0.110
0.293 ±0.127
0.346 + 0.092
0467 + 0041
0.197 + 0.084
0.415 + 0.062
0.440 ± 0.073
0 43 1 +0 049
0.428 ± 0.099
0.422 ± 0.070
0 414 + 0 055
0.308 ± 0.079
0.352 + 0.086
0.492 ± 0.068
0.431 ± 0.059
0.534 ± 0.031
215U
ND
ND
ND
0064 + 0019
ND
ND
ND
ND
ND
ND
0 DK4 + 0 024
ND
0.067 + 0.047
ND
ND
ND
ND
ND
ND
ND
ND
ND
0 105 + 0030
ND
ND
ftOQfi + 0023
ND
0.063 + 0.039
ND
ND
0.095 ± 0.017
2"Ra
ND
ND
ND
0 079 + 0058
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.17.a - Continued
STUDY SAMPLES
NAREL Sample ID
SDH 97.02161
SDH 97.02162
SDH 9702161
SDH 97. 02 169
SDH 97.02170
SDH 97 09 1 7 1
SDH 97.02172
SDH 97.02173
SDH 97.02174
SDH 97 071 7"i
SDH 97.02176
SDH 97.02177
-ield Sample Number
S-025-C-DUP, TOP 5 CM
S-025-C-DUP, 2ND 5 CM
S-095-r-niJP BOTTOM 8 TM
S-027-C, TOP 5 CM
S-027-C, 2ND 5 CM
S.097-P BOTTOM 8 PM
S-lll-C, TOP 5 CM
S-lll-C, 2ND 5 CM
S-lll-C, 3RD 5 CM
S-1 11 -C BOTTOM 10 CM
S-082-C, TOP 5 CM
S-082-C, BOTTOM 5 CM
RACKOROUNn SAMPLES
SDH 97.02 128
SDH 97.02 129
SDH 97 .02 130
SpH 97 02131
SDH 97. 02 132
SDH 97 O2 m
SDH 97 .02146
SDH 97 .02147
SDH 97. 02 148
SDH 97. 02 149
S-120-C-BG, TOP 5 CM
S-120-C-BG, 2ND 5 CM
S-120-C-BG, 3RD 5 CM
S-190-r.-Bfi BOTTOM 12 CM
S-121-C-BG.TOP5CM
S-12I-T-RO BOTTOM 4 TM
S-119-C-BG, TOP 5 CM
S-1I9-C-BO,2ND5CM
S-119-C-BG, 3RD 5 CM
S-119-C-BG. BOTTOM 1 1 CM
Activity
(pCi / g-dry weight ± 2o counting error)
2«Th
ND
ND
ND
ND
ND
ND
1.68 ± 0.72
ND
ND
0 69 +• 0 24
1.52 ±0.51
ND
'•""Pa
ND
ND
Nn
ND
ND
Nn
ND
ND
ND
Nn
5.8 ± 4.0
ND
Z26Ra
1.03 ± 0.69
0.86 ± 0.73
1 07 + 0 36
0.47 ± 0.69
1.15 ±0.65
0 9fi + 0 37
ND
ND
0.97 ± 0.71
1 1 S + 0 44
1.14 ± 0.88
ND
2!4pb
0.337 ± 0.067
0.374 ± 0.076
0 362 + 0 036
0.447 ± 0.063
0.414 ± 0.068
0 449 + 0 043
0.433 ±0.100
0.372 ± 0.076
0.41 1 ± 0.069
0 4fi8 + 0 044
0.402 ± 0.083
0.388 ± 0.081
2»Bi
0.287 ± 0.085
0.344 ± 0.078
0 366 + n 039
0.400 ± 0.074
0.287 ± 0.085
0 383 +0051
0.314 ± 0.113
0.277 ± 0.078
0.338 ± 0.078
0398 + 0052
0.413 ± 0.095
0.330 ± 0.124
"5U
ND
ND
Nn
0.036 ± 0.042
ND
Nn
ND
ND
ND
Nn
ND
ND
"3Ra
ND
ND
Nn
ND
ND
NT?
ND
ND
ND
ND
ND
ND
ND
0.23 ±0.17
ND
Nn
0.58 ± 0.29
Nn
0.39 ± 0.24
0.35 ± 0.21
ND
0.62 ± 0.23
ND
ND
ND
Nn
ND
Nn
ND
ND
ND
ND
0.34 ± 0.33
0.40 ± 0.30
0.32 ± 0.31
09.7 + 071
0.88 ± 0.51
1 27 + 0 40
0.92 ± 0.45
0.76 ± 0.37
0.83 ± 0.40
0.86 ± 0.34
0.164 ± 0.031
0.191 ± 0.029
0.192 ± 0.027
0 177 + 0091
0.467 ± 0.056
0510 + 0038
0.352 ± 0.042
0.361 ± 0.034
0.305 ± 0.035
0.375 ± 0.032
0.144 ± 0.034
0.162 ± 0.036
0.149 + 0.029
0 m +0 097
0.380 ± 0.062
0 487 + 0 043
0.297 ± 0.052
0.326 ± 0.034
0.283 ± 0.041
0.366 ± 0.037
ND
ND
ND
O018 + 0013
ND
0 080 + 0 094
ND
ND
ND
ND
ND
ND
ND
Nn
ND
ND
ND
ND
ND
ND
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.17.b
Gamma Spectrometry Results for Core Sediment Samples taken in San Diego Harbor
Thorium Chain and other Gamma Emitting Radionuclides - Displayed by Core
STUDY SAMPLES
NAREL
Samole ID
SDH 97.02134
SDH 97.021 35
SDH 97.02136
SDH 97.02 137
SDH 97.02125
SDH 97.021 26
SDH 97 .021 27
SDH 97.021 38
SDH 97.021 39
SDH 97.02140
SDH 97 .02141
SDH 97.02142
SDH 97.02143
SDH 97.02144
SDH 97 02145
SDH 97.02150
SDH 97.021 51
SDH 97.02 152
SDH 97 02153
SDH 97. 02 154
SDH 97.02155
SDH 97.02 156
SDH 97 02157
SDH 97.02 158
SDH 97.02 1 59
SDH 97 02160
SDH 97.02164
SDH 97.02165
SDH 97. 02 166
SDH 97 .02 167
SDH 97 02168_
Field Sample Number
S-021-C,TOP5CM
S-02I-C.2ND5CM
S-021-C, 3RD 5 CM
'S-021-C. BOTTOM 10.5 CM
S-021-C-DUP, TOP5CM
S-021-C-DUP,2ND5CM
S-021-C-DUP. BOTTOM R.5
S-076-C, TOP 5 CM
S-076-C, 2ND 5 CM
S-076-C, 3RD 5 CM
S-076-C. BOTTOM 12 CM
S-058-C, TOP 5 CM
S-058-C, 2ND 5 CM
S-058-C, 3RD 5 CM
S-058-C. BOTTOM 9 CM
S-054-C, TOP 5 CM
S-054-C, 2ND 5 CM
S-054-C, 3RD 5 CM
S-054-C BOTTOM 12 CM
S-048-C, TOP 5 CM
S-048-C, 2ND 5 CM
S-048-C, 3RD 5 CM
S-048-C BOTTOM 1 2 CM
S-063-C, TOP 5 CM
S-063-C, 2ND 5 CM
{5-063-C BOTTOM 8 CM
S-025-C, TOP 5 CM
S-025-C, 2ND 5 CM
S-025-C, 3RD 5 CM
S-025-C, 4TH 5 CM
S 025-C BOTTOM 1 5 5 CM
Activity
(pCi / g-dry weight ± 2o counting error)
228Ra
0.431 ±0.106
0.458 ± 0.072
0.452 ± 0.072
0.406 ± 0.048
0.492 ± 0.066
0.309 ± 0.046
0.256 + 0.033
0.455 ±0.115
0.502 + 0.131
0.536 ± 0.090
0.635 + 0.063
0.507 ±0.1 00
0.464 + 0.103
0.638 ±0.1 29
0.524 ± 0.051
0.706 ±0.1 59
0.592 ±0.1 33
0.571 ±0.104
0 805 + 0 062
0.382 ±0.1 02
0.541 ± 0.082
0.641 ±0.084
0.933 + 0.075
0.392 ±0.1 28
0.376 + 0.094
0.523 + 0.068
0.431 ±0.105
0.402 + 0.107
0.522 + 0.080
0.542 ± 0.084
0 668 + 0 045
2MRa
ND
ND
0.54 ± 0.47
0.50 + 0.30
0.54 ± 0.54
0.28 ± 0.26
0.34 + 0.26
ND
ND
ND
0.67 ± 0.39
ND
ND
ND
0.35 + 0.37
ND
0.80 + 1 .05
1.06 ±0.75
075 + 0.38
0.78 ± 0.86
0.72 ± 0.65
ND
1 .00 + 0.47
ND
0.93 ± 0.57
0.34 + 0.39
ND
ND
ND
ND
062 + 0.31
mPb
0.501 ±0.073
0.588 + 0.047
0.508 ± 0.053
0.519 + 0.033
0.534 ± 0.043
0.354 + 0.034
0.277 + 0.024
0.480 ± 0.078
0.559 + 0.078
0.644 ± 0.073
0.637 + 0.040
0.526 + 0.068
0.468 ± 0.073
0.490 ± 0.080
0.467 + 0.035
0.741 ±0.092
0.723 ± 0.092
0.721 ± 0.077
0.751 +0.040
0.404 ± 0.070
0.594 ± 0.052
0.725 + 0.065
0.878 + 0.048
0.495 ± 0.069
0.576 ± 0.060
0.522 + 0.041
0.465 ± 0.065
0.487 ± 0.072
0.528 ± 0.062
0.561 ±0.051
0.715 + 0.030
2UBj
0.43 ± 0.43
0.63 + 0.32
0.73 ± 0.29
0.56 ± 0.23
0.69 ± 0.28
0.33 ±0.19
0.21 ±0.19
0.44 ± 0.67
ND
0.84 ± 0.40
0.87 ±0.21
0.32 ± 0.34
0.62 ± 0.47
ND
0 56 + 0.27
0.62 ± 0.72
0.81 ±0.50
1 .02 ± 0.39
0.69 + 0.22
ND
0.49 + 0.36
0.98 + 0.39
I 06 + 0.26
ND
0.76 ± 0.33
0.33 ± 0.28
0.93 ± 0.46
0.56 ± 0.38
0.62 ± 0.47
ND
0.57 +0.15
ZtlK-TM
0.1 64 ±0.051
0.174 + 0.028
0.144 + 0.030
0.160 + 0.018
0.173 ±0.028
0.1 04 ±0.020
0.089 + 0.014
0.148 + 0.054
0.181 ±0.051
0.191 +0.043
0.224 + 0.023
0.191 ±0.046
0.140 + 0.048
0.168 + 0.048
0.153 ±0.022
0.256 ± 0.064
0.263 ± 0.064
0.229 ± 0.048
0.270 + 0.023
0.131 ±0.046
0.187 + 0.036
0.239 ± 0.039
0.267 ± 0.027
0.1 30 ±0.052
0.185 ±0.041
0.177 ±0.029
0.1 62 ±0.044
0.174 + 0.047
0.1 65 ±0.036
0.185 ±0.032
0.222 + 0.017
7Be
ND
0.26 ± 0.23
0.39 ± 0.23
0.28 +0.13
0.28+0.16
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.71 ±0.65
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
6"Co
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0022 + 0012
w'Co
MDA
0.094
0.066
0.059
0.029
0.056
0.036
0.027
0.108
0.092
0.068
0.043
0.087
0.090
0.075
0.040
0.101
0.127
0.089
0.043
0.087
0.056
0.071
0.052
0.107
0.077
0.067
0.088
0.085
0.060
0.060
Nr
'"Cs
0.04 ± 0.032
0.07 ± 0.026
0.06 ±0.019
0.05 + 0.012
0.06 ± 0.021
0.01 ±0.013
0.01 +0.011
0.07 ±0.038
0.09 ±0.031
0.10 ±0.033
0.10 + 0.017
0.08 ± 0.032
0.08 ± 0.033
0.10 + 0.033
0.09 + 0.016
0.08 ±0.041
0.12 ±0.044
0.13+0.033
011+ 0018
0.07 ± 0.035
0.05 ± 0.020
0.09 ± 0.028
0 14 + 0021
0.06 ± 0.047
0.09 ± 0.028
0 09 + 0 024
0.07 ± 0.032
0.07 ± 0.028
0.08 + 0.026
0.08 + 0.019
0 09 + 0 0 1 4
«K
13.60 ±0.96
15.70 + 0.81
15. 10 ±0.64
14.00 ±0.43
15.20 + 0.64
11. 40 ±0.43
9.63 + 0.30
13.60 ± 0.89
14.40 ± 0.92
16.00 + 0.79
16.40 + 0.53
14.80 ± 0.90
14.80 + 0.87
13.90 ± 0.86
14.90 + 0.48
12.20± 1.03
14.20+ 1.20
14.90 + 0.88
15 60 + 0 54
13.20 + 0.81
16.10 ±0.67
14.60 ±0.71
1640 + 0 58
12.80+ 1.22
14.60 + 0.80
16 10 + 070
13.70 ± 0.82
1 3.40 ±0.80
15.10 + 0.72
16.20 + 0.66
17 10 + 041
-------
TABLEA.17.b -Continued
STUDY SAMPLES
NAREL
Sample ID
SDH 97.02161
SDH 97 ,02 162
SDH 97 .02 161
SDH 97.02 169
SDH 97 .02 170
SDH 97.02171
SDH 97.02172
SDH 97.02173
SDH 97 .02174
SDH 97 .02 175
SDH 97.02176
SDH 97.02177
BACKGROUN
SDH 97.02 128
SDH 97.02 129
SDH 97 .02 130
SDH 97. 021 31
SDH 97. 02 132
SDH 97 .02133
SDH 97 .02 146
SDH 97.02 147
SDH 97.02 1 48
^DH 97 02 149
'ield Sample Number
S-025-C-DUP, TOP 5 CM
S-025-C-DUP, 2ND 5 CM
S-025-C-DUP BOTTOM 8
S-027-C, TOP 5 CM
S-027-C, 2ND 5 CM
S-027-C BOTTOM 8 CM
S-111-C.TOP5CM
S-lll-C, 2ND 5 CM
S-1I1-C,3RD5CM
S-ill-C. BOTTOM 10 CM
S-082-C, TOP 5 CM
S-082-C, BOTTOM 5 CM
Activity
(pCi / g-dry weight ± 2o counting error)
22sRa
0.360 ±0.1 04
0.445 ± 0.095
0 467 + 0 05 1
0.420 ± 0.097
0.543 ±0.103
0 396 ± 0 062
ND
0.381 ±0.107
0.349 ±0.101
0.480 + 0.066
ND
0.332 ±0.1 69
224Ra
ND
ND
046 + 041
ND
ND
ND
ND
ND
ND
0.46 ± 0.54
ND
ND
2l2Pb
0.41 8 ±0.061
0.482 ± 0.075
0 449 + 0 035
0.525 ± 0.064
0.463 ± 0.065
0 473 + 0 040
0.457 ±0.1 00
0.501 ±0.072
0.472 ± 0.065
0.518 + 0.043
0.453 ± 0.080
0.461 ± 0.092
212Bi
0.51 ±0.42
ND
0 49 + 0 23
0.49 ± 0.35
0.60 ± 0.35
ND
0.67 ± 0.59
0.65 ± 0.49
0.66 ± 0.40
0.61 +0.22
ND
ND
2»«TI
0.1 60 ±0.043
0.133 ±0.045
0 163 + 0021
0.1 65 ±0.040
0.1 59 ±0.044
0 1 37 + 0 029
0.121 ±0.060
0.151 ±0.044
0.1 66 ±0.044
0. 1 54 + 0.026
0.1 36 ±0.049
0.129 ±0.067
'Be
ND
ND
ND
ND
ND
ND
ND
0.46 ± 0.37
ND
ND
0.91 ±0.47
ND
"°Co
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
w'Co
MDA
0.075
0.080
0036
0.082
0.087
0054
O.II8
0.068
0.092
0.049
0.093
0.143
D SAMPLES
S-120-C-BO, TOP 5 CM
S-120-C-BG, 2ND 5 CM
S-120-C-BG, 3RD 5 CM
S-120-C-BG. BOTTOM 12
S-121-C-BG.TOP5CM
S-121-C-BG. BOTTOM 4
S-I19-C-BG, TOP 5 CM
S-119-C-BG, 2ND 5 CM
S-119-C-BG, 3RD 5 CM
S-l 19-C-BG BOTTOM 1 1
0.177 ±0.050
0.206 ± 0.049
0.161 ±0.033
0.162 + 0.031
0.455 ± 0.069
0.627 ± 0.053
0.370 ± 0.068
0.445 ± 0.044
0.338 ± 0.057
0.435 ± 0.046
ND
ND
ND
ND
0.42 ± 0.56
0.94 ± 0.36
ND
0.60 ± 0.40
0.37 ± 0.34
0.35 + 0.33
0.1 98 ±0.030
0.179 + 0.031
0.173 ±0.027
0.168 + 0.020
0.506 ± 0.043
0.711 ±0.039
0.417 ± 0.044
0.432 ± 0,033
0.394 ± 0.035
0.452 + 0.027
ND
ND
0.25 ±0.1 7
0.25 +0.11
0.47 + 0.36
0.75 + 0.22
0.25 ± 0.32
0.49 ± 0.20
0.63 ±0.21
0.49 + 0.20
0.057 ±0.019
0.054 + 0.020
0.060 ±0.0 16
0.059 + 0.012
0.138 + 0.034
0.198 + 0.025
O.i 63 ±0.029
0.1 28 ±0,020
0.1 28 ±0.021
0.143 + CJ.019
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.035
0.039
0.029
0026
0.074
0043
0.051
0.038
0.042
0038
137Cs
0.04 + 0.033
0.08 ± 0.028
006 + 0.016
0.11 ±0.030
0.10 + 0.031
0 08 + 0 024
0.06 ± 0.039
0.05 ± 0.027
0.09 + 0.031
0.11 +0.020
0.10 + 0.035
0.09 ± 0.040
4"K
11. 10 ±0.80
13.10±0.81
12.90 + 0.46
14.70 ± 0.83
12.80 ±0.86
14.70 + 0.67
13.80+ 1.07
11.80 + 0.76
13.90 + 0.83
16.00 + 0.59
1 5.40 ±0.93
12.90 ± 1.13
ND
ND
ND
ND
ND
ND
0.02 + 0.018
0.03 ±0.013
0.03 ±0.016
002 + 0013
14.50 ± 0.48
16.30 ±0.50
17.50 + 0.44
15 60 + 036
13.40 ±0.82
14 90 + 0 5J
14.00 + 0.58
14.40 + 0.45
13. 20 ±0.48
13 10 + 053
ND = Radionuclide was not detected by gamma spectrometry.
NC = Not calculated. The MDC is not calculated when the radionuclide is detected and quantified by the gamma spectrometry software.
-------
TABLE A.17.c
Gamma Spectrometry Results for Core Sediment Samples taken in San Diego Harbor
Uranium and Actinium Chain Gamma Emitting Radionuclides - Displayed by Depth
STUDY SAMPLES
NAREL Sample ID Ipield Sample Number
Activity
(pCi / g-dry weight + 2sigma counting error)
2MTh
n^Pa
226Ra
2Kpb
2"Bi I 235U
223Ra
STUDY SAMPLES - TOP DEPTH
SDH 97.02 134
SDH 97.02125
SDH 97.021 38
SDH 97.02142
SDH 97 .02150
SDH 97.02154
SDH 97 .021 58
SDH 97.02164
SDH 97. 021 61
SDH 97.02 169
SDH 97.02172
SDH 97.021 76
HArjcriROUNnsA
SDH 97.02 128
SDH 97 .02 132
SDH 97 .02146
S-021-C, TOP 5 CM
S-021-C-DUP, TOP5CM
S-076-C, TOP 5 CM
S-058-C, TOP 5 CM
S-054-C, TOP 5 CM
S-048-C, TOP 5 CM
S-063-C, TOP 5 CM
S-025-C, TOP 5 CM
S-025-C-DUP, TOP 5 CM
S-027-C, TOP 5 CM
S-111-C,TOP5CM
S-082-C, TOP 5 CM
0.81 ± 0.43
0.65 ± 0.29
ND
ND
ND
ND
ND
ND
ND
ND
1.68 ± 0.72
1.52 ±0.51
5.2 ± 5.9
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
5.8 ± 4.0
0.99 ± 0.78
0.93 ± 0.47
0.61 ± 0.78
0.78 ± 0.72
1.01 ± 1.09
0.88 ± 0.73
ND
1.06 ± 0.71
1.03 ±0.69
0.47 ± 0.69
ND
1.14 ±0.88
0.301 ± 0.085
0.376 ± 0.048
ND
0.312 ± 0.076
0.413 ± 0.097
0.247 ± 0.073
0.389 ± 0.073
0.386 ± 0.066
0.337 ± 0.067
0.447 ± 0.063
0.433 ±0.100
0.402 ± 0.083
0.239 ± 0.108
0.326 ± 0.056
0.192 ± 0.090
0.353 ± 0.089
0.338 ±0.110
0.197 ± 0.084
0.428 ± 0.099
0.308 ± 0.079
0.287 ± 0.085
0.400 ± 0.074
0.314 ± 0.113
0.413 ± 0.095
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.036 ± 0.042
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
MPLES - TOP DFPTH
S-120-C-BG,TOP5CM
S-121-C-BG,TOP5CM
S-119-C-BG, TOP 5 CM
ND
0.58 ± 0.29
0.39 ± 0.24
ND
ND
ND
0.34 ± 0.33
0.88 ±0.51
0.92 ± 0.45
0.164 ± 0.031
0.467 ± 0.056
0.352 ± 0.042
0.144 ± 0.034
0.380 ± 0.062
0.297 ± 0.052
ND
ND
ND
ND
ND
ND
STUDY SAMPLES - SECOND DEPTH
SDH 97.02 135
SDH 97.02 126
SDH 97 .02139
SDH 97.02 143
SDH 97.02151
SDH 97 .02 155
SDH 97.021 59
SDH 97.02165
SDH 97.02177
SDH 97.02162
SDH 97.02 170
SDH 97.02173
S-021-C, 2ND 5 CM
S-021-C-DUP, 2ND 5 CM
S-076-C, 2ND 5 CM
S-058-C, 2ND 5 CM
S-054-C, 2ND 5 CM
S-048-C, 2ND 5 CM
S-063-C, 2ND 5 CM
S-025-C, 2ND 5 CM
S-082-C, BOTTOM 5 CM
S-025-C-DUP, 2ND 5 CM
S-027-C, 2ND 5 CM
S-lll-C, 2ND 5 CM
ND
ND
0.63 ± 0.47
ND
ND
0.50 ± 0.30
ND
0.54 ± 0.40
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.18 ±0.51
L_ 0.89 ± 0.35
ND
0.94 ± 0.78
L 1.19 ±0.97
1.30 ± 0.52
1.42 ± 0.63
0.95 ± 0.64
ND
0.86 ± 0.73
1.15 ± 0.65
ND
0.405 ± 0.046
0.329 ± 0.033
0.399 ± 0.080
0.412 ± 0.075
0.389 ±0.104
0.479 ± 0.052
0.456 ± 0.060
0.446 ± 0.070
0.388 ± 0.081
0.374 ± 0.076
0.414 ± 0.068
0.372 ± 0.076
0.424 ± 0.060
0.278 ± 0.039
0.280 ± 0.096
0.389 ± 0.099
0.293 ±0.127
0.415 ± 0.062
0.422 ± 0.070
0.352 ± 0.086
0.330 ±0.124
0.344 ± 0.078
0.287 ± 0.085
0.277 ± 0.078
ND
ND
ND
0.067 ± 0.047
ND
ND
ND
0.063 ± 0.039
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
00
-------
TABLE A.17.C - Continued
STUDY SAMPLES
NAREL Sample ID
7ield Sample Number
BACKGROUND SAMPLES - SECOND DEPTH
SDH 97.02129
SDH 97 .02 133
SDH 97 .02147
S-120-C-BG, 2ND 5 CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG,2NDCM
Activity
(pCi / g-dry weight + 2sigma counting error)
B4Th
134mpa
2wRa
214Pb
2MBi
B5U
22
-------
TABLE A.17.C - Continued
STUDY SAMPLES
NAREL Sample ID | Field Sample Number
BACKGROUND SAMPLES - FOURTH DEPTH
SDH 97.02131
SDH 97. 02 149
STUDY SAMPI.F.S -
SDH 97.02168
S-I20-C-BG, BOTTOM 12 CM
S-l 19-C-BG, BOTTOM 1 1 CM
FIFTH DEPTH
S-025-C. BOTTOM 15.5 CM
Activity
(pCi / g-dry weight + 2sigma counting error)
234Th
I3*»pa
22"Ra
2I4pb
2l4Bi
™U
ND
0.62 + 0.23
0.45 + 0.20
ND
ND
ND
0.27 ± 0.21
0.86 + 0.34
ND
0.177 ± 0.021
0.375 ± 0.032
0.603 ± 0.030
0.171 + 0.022
0.366 ± 0.037
0.534 ±0.031
0.018 ± 0.013
ND
0.095 ± 0.017
22iRa
ND
ND
ND
ND = Radionuclide was not detected by gamma spectrometry.
00
o
-------
TABLE A.17.d
Gamma Spectrometry Results for Core Sediment Samples taken in San Diego Harbor
Thorium Chain and other Gamma Emitting Radionuclides - Displayed by Depth
NAREL
Sample ID
3ield Sample Number
STUDY SAMPLES - TOP DEPTH
SDH 97 .02134
SDH 97.02125
SDH 97 .02138
SDH 97 .02 142
SDH 97 .02150
SDH 97 .02 154
SDH 97 .02158
SDH 97 .02164
SDH 97 .02161
SDH 97.02 169
SDH 97.02 172
SDH 97 .02176
S-021-C.TOP5CM
S-021-C-DUP.TOP5CM
S-076-C, TOP 5 CM
S-058-C.TOP5CM
S-054-C, TOP 5 CM
S-048-C.TOP5CM
S-063-C, TOP 5 CM
S-025-C, TOP 5 CM
S-025-C-DUP.TOP5CM
S-027-C, TOP 5 CM
S-111-C.TOP5CM
S-082-C.TOP5CM
Activity
IpCi / g-dry weight ± 2o counting error)
""Ra
224Ra
2l2Pb
!1!Bi
21181*1
7Be
""Co
6"Co
MDA
"7Cs
4,IR
0.43 ±0.11
0.49 ± 0.07
0.46 ±0.12
0.51 ± 0.10
0.71 ± 0.16
0.38 ±0.10
0.39 ±0.13
0.43 ±0.11
0.36 ±0.10
0.42 ±0.10
ND
ND
ND
0.54 ± 0.54
ND
ND
ND
0.78 ± 0.86
ND
ND
ND
ND
ND
ND
0.501 ± 0.073
0.534 ± 0.043
0.480 ± 0.078
0.526 ± 0.068
0.741 ± 0.092
0.404 ± 0.070
0.495 ± 0.069
0.465 ± 0.065
0.418 ± 0.061
0.525 ± 0.064
0.457 ± 0.100
0.453 ± 0.080
0.43 ± 0.43
0.69 ± 0.28
0.44 ± 0.67
0.32 ± 0.34
0.62 ± 0.72
ND
ND
0.93 ± 0.46
0.51 ± 0.42
0.49 ± 0.35
0.67 ± 0.59
ND
0.164 ± 0.051
0.173 ± 0.028
0.148 ± 0.054
0.191 ± 0.046
0.256 ± 0.064
0.131 ± 0.046
0.130 ± 0.052
0.162 ± 0.044
0.160 ± 0.043
0.165 ± 0.040
0.121 ± 0.060
0.136 ± 0.049
ND
0.28 ± 0.16
ND
ND
0.71 ± 0.65
ND
ND
ND
ND
ND
ND
0.91 ± 0.47
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.094
0.056
0.108
0.087
0.101
0.087
0.107
0.088
0.075
0.082
0.118
0.093
0.043 ± 0.032
0.060 ± 0.021
0.075 ± 0.038
0.083 ± 0.032
0.085 ± 0.041
0.073 ± 0.035
0.067 ± 0.047
0.071 ± 0.032
0.042 ± 0.033
0.112 ± 0.030
0.066 ± 0.039
Q.tOO ± 0.035
13.60 ± 0.96
15.20 ± 0.64
13.60 ± 0.89
14.80 ± 0.90
12.20 ± 1.03
13.20 ± 0.81
12.80 ± 1.22
13.70 ± 0.82
11.10 ± 0.80
14.70 ± 0.83
13.80 ± 1.07
15.40 ± 0.93
BACKGROUND SAMPLES - TOP DEPTH
SDH 97 .02128
SDH 97 .02132
SDH 97.02146
S-120-C-BG.TOP5CM
S-121-C-BG.TOP5CM
S-119-C-BG,TOP5CM
0.18 ± 0.05
0.46 ± 0.07
0.37 ± 0.07
ND
0.42 ± 0.56
ND
0.198 ± 0.030
0.506 ± 0.043
0.417 ± 0.044
ND
0.47 ± 0.36
0.25 ± 0.32
0.057 ± 0.019
0.138 ± 0.034
0.163 ± 0.029
ND
ND
ND
ND
ND
ND
0.035
0.074
0.051
ND
ND
0.029 ± 0.018
14.50 ± 0.48
13.40 ± 0.82
14.00 ± 0.58
STUDY SAMPLES - SECOND DEPTH
SDH 97.02 135
SDH 97.02126
SDH 97.02139
SDH 97.02143
SDH 97.02151
SDH 97 .02 155
SDH 97 .02 159
SDH 97.02 165
SDH 97.02162
SDH 97.02 170
SDH 97.02 177
SDH 97.02173
S-021-C.2ND5CM
S-02I-C-DUP.2ND5CM
S-076-C, 2ND 5 CM
S-058-C, 2ND 5 CM
S-054-C, 2ND 5 CM
S-048-C, 2ND 5 CM
S-063-C, 2ND 5 CM
S-025-C, 2ND 5 CM
S-025-C-DUP, 2ND 5 CM
S-027-C, 2ND 5 CM
S-082-C, BOTTOM 5 CM
S-lll-C, 2ND 5 CM
0.46 ± 0.07
0.31 ± 0.05
0.50 ±0.13
0.46 ±0.10
0.59 ±0.13
0.54 ± 0.08
0.38 ± 0.09
0.40 ±0.11
0.45 ±0.10
0.54 ±0.10
0.33 ± 0.17
0.38 ±0.11
ND
0.28 ± 0.26
ND
ND
0.80 ± 1.05
0.72 ± 0.65
0.93 ± 0.57
ND
ND
ND
ND
ND
0.588 ± 0.047
0.354 ± 0.034
0.559 ± 0.078
0.468 ± 0.073
0.723 ± 0.092
0.594 ± 0.052
0.576 ± 0.060
0.487 ± 0.072
0.482 ± 0.075
0.463 ± 0.065
0.461 ± 0.092
0.501 ± 0.072
0.63 ± 0.32
0.33 ± 0.19
ND
0.62 ± 0.47
0.81 ± 0.50
0.49 ± 0.36
0.76 ± 0.33
0.56 ± 0.38
ND
0.60 ± 0.35
ND
0.65 ± 0.49
L 0.1 74 ± 0.028
0.104 ± 0.020
0.181 ± 0.051
0.140 ± 0.048
0.263 ± 0.064
0.187 ± 0.036
0.185 ± 0.041
0.174 ± 0.047
0.133 ± 0.045
0.159 ± 0.044
0.129 ± 0.067
0.151 ± 0.044
0.26 ± 0.23
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.46 ± 0.37
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.066
0.036
0.092
0.090
0.127
0.056
0.077
0.085
0.080
0.087
0.143
0.068
0.073 ± 0.026
0.017 ± 0.013
0.094 ± 0.031
0.084 ± 0.033
0.120 ± 0.044
0.057 ± 0.020
0.091 ± 0.028
0.075 ± 0.028
0.089 ± 0.028
0.107 ± 0.031
0.095 ± 0.040
0.059 ± 0.027
15.70 ± 0.81
11.40 ± 0.43
14.40 ± 0.92
14.80 ± 0.87
14,20 ± 1.20
16.10 ± 0.67
14.60 ± 0.80
13.40 ± 0.80
13.10 ± 0.81
12.80 ±. 0.86
12.90 ± 1.13
11,80 ± 0.76
00
-------
TABLE A.17.d - Continued
NAREL
Sample ID
Field Sample Number
Activity
(pCi / g-dry weight ± 2o counting error)
mRa
224Ra
2l2Pb
2l!Bi
2»T|
'Be
6('Co
""Co
MDA
'"Cs
4"K
RArKfiRqi/Np SAMPLES - SRTONn DRPTH
SDH 97.02129
SDH 97.02133
SDH 97.02147
S-120-C-BG, 2ND 5 CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG, 2ND CM
0.21 ± 0.05
0.63 ± 0.05
0.45 ± 0.04
ND
0.94 ± 0.36
0.60 ± 0.40
0.179 ± 0,031
0.711 ± 0.039
0.432 ± 0.033
ND
0.75 ± 0.22
0.49 ± 0.20
0.054 ± 0.020
0.198 ± 0.025
0.128 ± 0.020
ND
ND
ND
ND
ND
ND
0.039
0.043
0.038
ND
ND
0.034 ± 0.013
16.30 ± 0.50
14.90 ± 0.52
14.40 ± 0.45
STUDY .S/^Mpf F.S - THIRD DPPTH
SDH 97.02 136
SDH 97.02127
SDH 97 .02 140
SDH 97.02144
SDH 97.02 152
SDH 97 .02156
SDH 97 .02160
SDH 97 .02166
SDH 97.02163
SDH 97 .02171
SDH 97.02 174
S-021-C, 3RD 5 CM
S-021-C-DUP, BOTTOM
8.5CM
S-076-C, 3RD 5 CM
S-058-C, 3RD 5 CM
S-054-C, 3RD 5 CM
S-048-C, 3RD 5 CM
S-063-C, BOTTOM 8 CM
S-025-C, 3RD 5 CM
S-025-C-DUP, BOTTOM 8 CM
S-027-C, BOTTOM 8 CM
S-lll-C, 3RD 5 CM
0.45 ± 0.07
0.26 ± 0.03
0.54 ± 0.09
0.64 ±0.13
0.57 ± 0.10
0.64 ± 0.08
0.52 ± 0.07
0.52 ± 0.08
0.47 ± 0.05
0.40 ± 0.06
0.35 ± 0.10
0.54 ± 0.47
0.34 ± 0.26
ND
ND
1.06 ± 0.75
ND
0.34 * 0.39
ND
0.46 ± 0.41
ND
ND
0.508 ± 0.053
0.277 ± 0.024
0.644 ± 0.073
0.490 ± 0.080
0.721 ± 0.077
0.725 ± 0.065
0.522 ± 0.041
0.528 ± 0.062
0.449 ± 0.035
0.473 ± 0.040
0.472 ± 0.065
0.73 ± 0.29
0.21 ± 0.19
0.84 ± 0.40
ND
1.02 ± 0.39
0.98 ± 0.39
0.33 ± 0.28
0.62 ± 0.47
0.49 ± 0.23
ND
0.66 ± 0.40
0.144 ± 0.030
0.089 ± 0.014
0.191 ± 0.043
0.168 ± 0.048
0.229 ± 0.048
0.239 ± 0.039
0.177 ± 0.029
0.165 ± 0.036
0.163 ± 0.021
0.137 ± 0.029
0.166 ± 0.044
0.39 ± 0.23
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.059
0.027
0.068
0.075
0.089
0.071
0.067
0.060
0.036
0.054
0.092
0.065 ± 0.019
0.011 ± 0.011
0.104 ± 0.033
0.102 ± 0.033
0.133 ± 0.033
0.090 ± 0.028
0.098 ± 0.024
0.083 ± 0.026
0.066 ± 0.016
0.081 ± 0.024
0.093 ± 0.031
15.10 ± 0.64
9.63 ± 0.30
I6.00'± 0.79
13.90 ± 0.86
14.90 ± 0.88
14.60 ± 0.71
16.10 ± 0.70
15.10 ± 0.72
12.90 ± 0.46
14.70 ± 0.67
13.90 ± 0.83
RArKfiRonNn SAMPI FS -THIRD TIF.PTH
SDH 97.02 130
SDH 97.02148
S-I20-C-BG, 3RD 5 CM
S-119-C-BG,3RD5CM
0.16 ± 0.03
0.34 ± 0.06
ND
0.37 ± 0.34
0.173 ± 0.027
0.394 ± 0.035
0.25 ±0.17
0.63 ± 0.21
0.060 ± 0.016
0.128 ± 0.021
ND
ND
ND
ND
0.029
0.042
ND
0.031 ± 0.016
17.50 ± 0.44
13.20 ± 0.48
STUDY SAMPI FS - FOURTH DFPTH
SDH 97.02 137
SDH 97.02 141
SDH 97.02 145
SDH 97 .02153
SDH 97 .02157
SDH 97 .02167
SDH 97 .02 175
S-021-C, BOTTOM 10.5 CM
S-076-C, BOTTOM 12 CM
S-058-C, BOTTOM 9 CM
S-054-C, BOTTOM 12 CM
S-048-C, BOTTOM 12 CM
S-025-C, 4TH 5 CM
S-lll-C, BOTTOM 10 CM
0.41 ± 0.05
0.64 ± 0.06
0.52 ± 0.05
0.81 ± 0.06
0.93 ± 0.08
0.54 ± 0.08
0.48 ± 0.07
0.50 ± 0.30
0.67 ± 0.39
0.35 ± 0.37
0.75 ± 0.38
1.00 ± 0.47
ND
0.46 ± 0.54
0.519 ± 0.033
0.637 ± 0.040
0.467 ± 0.035
0.751 ± 0.040
0.878 ± 0.048
0.561 ± 0.051
0.518 ± 0.043
0.56 ± 0.23
0.87 ± 0.21
0.56 ± 0.27
0.69 ± 0.22
1.06 ± 0.26
ND
0.61 ± 0.22
0.160 ± 0.018
0.224 ± 0.023
0.153 ± 0.022
0.270 ± 0.023
0.267 ± 0.027
0.185 ± 0.032
0.154 ± 0.026
0.28 ± 0.13
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.029
0.043
0.040
0.043
0.052
0.060
0.049
0.057 ± 0.012
0.106 ± 0.017
0.095 ± 0.016
0.112 ± 0.018
0.142 ± 0.021
0.081 ± 0.019
O.I 14 ± 0.020
14.00 ± 0.43
16.40 ± 0.53
14.90 ± 0.48
15.60 ± 0.54
16.40 ± 0.58
16.20 ± 0.66
16.00 ± 0.59
oo
to
-------
TABLE A.lT.d - Continued
NAREL
Sample ID
Field Sample Number
Activity
(pCi / g-dry weight ± 2o counting error)
22'Ra
224Ra
2,Jpb
212Bi
2()«T|
7Be
""Co
""Co
MDA
>"Cs
4(,K
BACKGROUND SAMPLES - FOURTH DEPTH
SDH 97.02131
SDH 97 .02149
S-120-C-BG, BOTTOM 12 CM
S-U9-C-BG, BOTTOM 11 CM
STI inv <^|4MPI .PS - FIFTH DFPTH
SDH 97.02168
S-025-C, BOTTOM 15.5 CM
0.16 ± 0.03
0.44 ± 0.05
0.67 ± 0.04
ND
0.35 ± 0.33
0.62 ± 0.31
0.168 * 0.020
0.452 ± 0.027
0.715 ± 0.030
0.25 ±0.11
0.49 ± 0.20
0.059 ± 0.012
0.143 ± 0.019
ND
ND
ND
ND
0.026
0.038
ND
0.027 ± 0.013
15.60 ± 0.36
13.10 ± 0.53
0.57 ±0.15
0.222 ± 0.017
ND
0.022 ± 0.012
NC
0.097 ± 0.014
17.10 ± 0.41
ND = Radionuclide was not detected by gamma spectrometry.
NC = Not calculated. The MDC is not calculated when the radionuclide is detected and quantified by the gamma spectrometry
software.
oo
-------
00
TABLE A.lS.a
Gross Alpha and Gross Beta Results for Core Sediment Samples taken in San Diego Harbor
Displayed by Core
STUDY SAMPLES
NARFL Samnle ID
SDH 97.02134
SDH 97.021 35
SDH 97.021 36
SDH 97 .02 137
SDH 97.021 25
SDH 97.02 126
gDH 97.021 27
SDH 97.021 38
SDH 97.02 139
SDH 97.02140
SDH 97 021 41
SDH 97.02 142
SDH 97.02143
SDH 97.02 144
SDH 9702145
SDH 97.02150
SDH 97.02151
SDH 97.021 52
SDH 97 021 53
SDH 97.02154
SDH 97.02 155
SDH 97.02156
SDH 97 02 1ST
SDH 97.02158
SDH 97.02159
SDH 97 02160
SDH 97.02164
SDH 97.02 165
Field Samnle Number
S-021-C,TOP5CM
S-021-C, 2ND 5 CM
S-021-C, 3RD 5 CM
S-021-C. BOTTOM 10.5 CM
S-021-C-DUP,TOP5CM
S-021-C-DUP, 2ND 5 CM
S-021-C-niJP. BOTTOM 8.5 CM
S-076-C, TOP 5 CM
S-076-C, 2ND 5 CM
S-076-C, 3RD 5 CM
S-076-C. BOTTOM 12 CM
S058-C, TOP 5 CM
S058-C, 2ND 5 CM
S058-C, 3RD 5 CM
S058-C. BOTTOM 9 CM
S054-C, TOP 5 CM
S054-C, 2ND 5 CM
S054-C, 3RD 5 CM
S054-C. BOTTOM 1 2 CM
S048-C, TOP 5 CM
S048-C, 2ND 5 CM
S048-C, 3RD 5 CM
S048-C. BOTTOM 12 CM
S063-C, TOP 5 CM
S063-C, 2ND 5 CM
S-063-C. BOTTOM 8 CM
S-025-C, TOP 5 CM
S-025-C, 2ND 5 CM
Activity
(pCi / g-dry weight ± 2a counting error)
Gross Alnha
12.1 ± 6.8
8.0 ± 5.6
9.2 ± 5.8
6.1 + 5.1
10.3 ± 6.0
1.0 ± 3.4
1.3 + 3.9
7.2 ± 5.9
11.6 ± 6.3
7.6 ± 5.7
9.2 + 5.8
11.7 ± 6.4
11.6 ± 6.4
7.0 ± 5.5
6.8 + 53
14.8 ± 7.4
9.7 ± 6.0
11.7 ± 7.7
8.6 + 5.7
14.5 ± 8.0
8.0 ± 5.6
8.0 ± 5.3
7.8 + 5.5
15.4 ± 7.1
13.5 ± 6.4
11.6 + 6.4
18.8 ± 8.8
5.6 ± 4.4
Gross Beta
18.8 ± 3.8
16.8 ± 3.5
18.2 ± 3.5
20.7 -t- 3.7
18.9 ± 3.6
14.3 ± 3.3
16.0 + 3.5
25.7 ± 4.0
19.9 ± 3.7
19.1 ± 3.7
22.9 + 3.8
22.8 ± 3.8
20.3 ± 3.7
19.4 ± 3.8
17.1 + 3.6
22.4 ± 4.0
22.4 ± 3.8
19.2 ± 3.8
23.5 + 3.9
18.2 ± 3.8
17.0 ± 3.5
20.6 ± 3.7
16.8 -i- 3.5
22.7 ± 4.0
23.2 ± 3.8
24.6 +40
20.8 ± 3.9
22.9 ± 3.7
-------
TABLE A.18.a - Continued
CO
STUDY SAMPLES
NARF.I.SamnlelD
SDH 97.021 66
SDH 97.021 67
SDH 97.02168
SDH 97.02161
SDH 97.02162
SDH 97 021 63
SDH 97.021 69
SDH 97.02170
SDH 97.021 71
SDH 97.02 172
SDH 97.02 173
SDH 97.02174
SDH 97 021 75
SDH 97.02176
SDH 97.02177
Pield Samnle Number
S-025-C, 3RD 5 CM
S-025-C, 4TH 5 CM
S-025-C, BOTTOM 15.5 CM
S-025-C-DUP, TOP 5 CM
S-025-C-DUP, 2ND 5 CM
S-025-C-DUP. BOTTOM 8 CM
S-027-C, TOP 5 CM
S-027-C, 2ND 5 CM
S-027-C. BOTTOM 8 CM
S-111-C.TOP5CM
S-lll-C, 2ND 5 CM
S-111-C,3RD5CM
S-l 11 -C. BOTTOM 1 0 CM
S-082-C, TOP 5 CM
S-082-C, BOTTOM 5 CM
Activity
(pCi / g-dry weight ± 2o counting error)
Gross Alnha
4.8 ± 4.5
21.5 ± 8.4
18.2 ± 8.1
10.1 ± 5.7
7.8 ± 5.2
16.1 •+• 7.2
18.3 ± 7.8
12.1 ± 6.2
6.9 + 5.6
11.1 ± 5.8
19.1 ± 8.1
14.2 ± 6.9
14.9 + 8.3
13.3 ± 6.3
7.9 ± 5.2
Gross Beta
24.2 ± 3.8
18.5 ± 3.7
21.0 ± 3.9
17.9 ± 3.6
22.5 ± 3.9
20.1 ± 3.8
23.3 ± 3.9
23.0 ± 3.8
20.1 ± 3.6
23.1 ± 3.8
24.9 ± 4.1
20.2 ± 3.8
20.9 + 3.9
24.5 ± 3.9
23.3 ± 3.7
RACKOROtJND SAMPLES
SDH 97.02128
SDH 97.02 129
SDH 97.021 30
SDH 97 02131
SDH 97.02132
SDH 97 021 33
SDH 97.02146
SDH 97.02147
SDH 97.02148
SDH 97.02149
S-120-C-BG, TOP 5 CM
S-120-C-BG, 2ND 5 CM
S-120-C-BG, 3RD 5 CM
S-1 20-C-BG. BOTTOM 1 2 CM
S-121-C-BG.TOP5CM
S-121-C-BG. BOTTOM 4 CM
S-119-C-BG, TOP 5 CM
S-119-C-BG, 2ND CM
S-119-C-BG, 3RD 5 CM
S-119-C-BG, BOTTOM 11 CM
1.7 ± 3.8
1.0 ± 3.4
1.5 ± 3.4
1.9 ± 3.8
6.8 ± 5.0
3.9 ± 4.2
6.7 ± 4.9
3.6 ± 4.3
7.0 ± 5.6
8.1 ± 5.5
16.0 ± 3.5
17.8 ± 3.5
18.4 ± 3.5
16.3 -+• 3.5
18.1 ± 3.5
183 ± 35
17.9 ± 3.5
14.3 ± 3.4
16.7 ± 3.5
12.7 ± 3.2
-------
00
Ov
TABLE A.lS.b
Gross Alpha and Gross Beta Results for Core Sediment Samples taken in San Diego Harbor
Displayed by Depth
NAREL Sample ID
SDH 97.021 34
SDH 97.02125
SDH 97.02 138
SDH 97.02142
SDH 97.021 50
SDH 97.021 54
SDH 97.02158
SDH 97.02 164
SDH 97.021 61
SDH 97.02169
SDH 97.02 172
SDH 97 02 176
SDH 97.02128
SDH 97.02132
SDH 97 021 46
SDH 97.02135
SDH 97.02126
SDH 97.02139
SDH 97.02143
SDH 97.021 51
SDH 97.02 155
SDH 97.02159
SDH 97.02165
SDH 97.02162
SDH 97.02 170
SDH 97.02173
-------
oo
TABLE A.lS.b
Gross Alpha and Gross Beta Results for Core Sediment Samples taken in San Diego Harbor
Displayed by Depth
NAREL Sample ID
SDH 97.021 29
SDH 97 .02133
SDH 97.021 47
SDH 97.021 36
SDH 97.021 27
SDH 97.02140
SDH 97.02144
SDH 97.02152
SDH 97.021 56
SDH 97 .021 60
SDH 97.021 66
SDH 97.02163
SDH 97.02171
SDH 97.02 174
SDH 97.021 30
SDH 97.02148
SDH 97.021 37
SDH 97.02141
SDH 97.02145
SDH 97.02153
SDH 97.021 57
SDH 97.02167
SDH 97.021 75
SDH 97.02131
SDH 97.02 149
SDH 97.02168
Field Sample Number
S-120-C-BG, 2ND 5 CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG 2ND CM
S-021-C, 3RD 5 CM
S-021-C-DUP, BOTTOM 8.5 CM
S-076-C, 3RD 5 CM
S-058-C, 3RD 5 CM
S-054-C, 3RD 5 CM
S-048-C, 3RD 5 CM
S-063-C, BOTTOM 8 CM
S-025-C, 3RD 5 CM
S-025-C-DUP, BOTTOM 8 CM
S-027-C, BOTTOM 8 CM
S-11I-C. 1RD5CM
S-120-C-BG,3RD5CM
S-119-C-RG 3RD 5 CM
S-021-C, BOTTOM 10.5 CM
S-076-C, BOTTOM 12 CM
S058-C, BOTTOM 9 CM
S-054-C, BOTTOM 12 CM
S-048-C, BOTTOM 1 2 CM
S-025-C, 4TH 5 CM
S- 1 11 -C. BOTTOM 1 0 CM
S-120-C-BG, BOTTOM 12 CM
S-119-C-RG BOTTOM 11 CM
S-025-C, BOTTOM 15.5 CM
Activity
(pCi / g-dry weight ± 2o counting error)
Gross Alpha
1.0 ± 3.4
3.9 ± 4.2
36 + 43
9.2 ± 5.8
1.3 ± 3.9
7.6 ± 5.7
7.0 ± 5.5
11.7 ± 7.7
8.0 ± 5.3
11.6 ± 6.4
4.8 ± 4.5
16.1 ± 7.2
6.9 ± 5.6
14.2 + 6.9
1.5 ± 3.4
70 + 5.6
6.1 ± 5.1
9.2 ± 5.8
6.8 ± 5.3
8.6 ± 5.7
7.8 ± 5.5
21.5 ± 8.4
149 + 8.3
1.9 ± 3.8
8 1 + 5.5
18.2 ± 8.1
Gross Beta
17.8 ± 3.5
18.3 ± 3.5
143 + 34
18.2 ± 3.5
16.0 + 3.5
19.1 ±3.7
19.4 ± 3.8
19.2 ± 3.8
20.6 ± 3.7
24.6 + 4.0
24.2 + 3.8
20.1 ± 3.8
20.1 +3.6
20.2 + 3.8
18.4 ± 3.5
16.7 + 3.5
20.7 ± 3.7
22.9 ± 3.8
17.1 ± 3.6
23.5 ± 3.9
16.8 ± 3.5
18.5 ± 3.7
20.9 + 3.Q
16.3 + 3.5
12.7 + 3.2
21.0 ± 3.9
-------
TABLE A.19
Radium-226 Results for Core Sediment Samples taken in San Diego Harbor
oo
oo
STUDY SAMPLES
NAREL Samole ID
97.02134M
97.02138R
97.021530
97.02 158W
97.02167X
97.02173V
Field Samole Number
S-021-C, TOP 5 CM
S-076-C, TOP 5 CM
S-054-C, BOTTOM 12 CM
S-063-C, TOP 5 CM
S-025-C, 4TH 5 CM
S-111-C.2NDCM
Activity
(pCi / g-dry weight ± 2o counting error)
226Ra
0.474 ± 0.035
0.590 ± 0.042
0.469 ± 0.038
0.563 ± 0.040
0.466 ± 0.037
0.700 ± 0.039
BACKGROUND SAMPLES
97.02128P
97.02129Q
97.02 130H
97.0213 U
97.02 132K
97.02133L
97.02 146R
97.02 147T
97.02148U
9702149V
S-120-C-BG,TOP5CM
S-120-C-BG,2ND5CM
S-120-C-BG, 3RD 5 CM
S-120-C-BG, BOTTOM 12 CM
S-121-C-BG,TOP5CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG,TOP5CM
S-119-C-BG, 2ND CM
S-119-C-BG, 3RD 5 CM
S-119-C-BG BOTTOM 11 CM
0.257 ± 0.029
0.283 ± 0.031
0.275 ± 0.032
0.266 ± 0.031
0.365 ± 0.035
0.660 ± 0.047
0.481 ± 0.039
0.422 ± 0.035
0.433 ± 0.037
0476 + 0039
Note: Core sediment samples were batched together as one matrix. Per the approved sampling plan,
only a percentage of samples based on the highest gross alpha and gross beta concentrations were
analyzed for radium-226 content. None of the study core sediment samples contained the highest
gross alpha or gross beta concentrations. Therefore, radium-226 analysis was not conducted for
study core sediment samples. All background samples were analyzed for radium-226.
-------
TABLE A.20
Uranium Results for Core Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
SDH 97 .02 134
SDH 97.02 138
SDH 97 .02 153
SDH 97 .02158
SDH 97 .02 167
SDH 97.02173
BACKGROUND SAM
SDH 97.02 128
SDH 97.02129
SDH 97.02130
SDH 97.02 131
SDH 97.02 132
SDH 97.02 133
SDH 97 .02 146
SDH 97. 02 147
SDH 97.02 148
SDH 97.02149
Field Samole Number
S-021-C.TOP5CM
S-076-C, TOP 5 CM
S-054-C, BOTTOM 12 CM
S-063-C, TOP 5 CM
S-025-C, 4TH 5 CM
S-111-C,2ND5CM
Activity
(pCi / g-dry weight + 2a counting error)
234U
0.54 ± 0.09
0.74 ±0.10
0.82 ± 0.15
0.49 ± 0.09
0.46 ±0.11
0.61 ± 0.10
235U
0.033 ± 0.022
0.051 ± 0.025
0.034 ± 0.037
0.019 ± 0.022
0.018 ± 0.024
0.106 ± 0.045
PLES
S-120-C-BG,TOP5CM
S-120-C-BG,2ND5CM
S-120-C-BG, 3RD 5 CM
S-120-C-BG, BOTTOM 12 CM
S-121-C-BG, TOP 5 CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG,TOP5CM
S-119-C-BG,2NDCM
S-119-C-BG, 3RD 5 CM
S-l 19-C-BG, BOTTOM 1 1 CM
0.36 ± 0.08
0.27 ± 0.08
0.29 ± 0.08
0.28 ± 0.09
0.28 ± 0.08
0.73 ± 0.12
0.46 ±0.10
0.39 ± 0.07
0.41 ± 0.08
0.38 ± 0.08
0.046 ± 0.031
0.025 ± 0.027
0.042 ± 0.037
0.038 ± 0.042
0.020 ± 0.032
0.052 ± 0.034
0.047 ± 0.034
0.030 ± 0.021
0.029 ± 0.022
0.034 ± 0.024
238U
0.413 ± 0.075
0.636 ± 0.090
0.717 ± 0.143
0.646 ±0.110
0.493 ±0.112
0.625 ±0.106
0.372 ± 0.080
0.269 ± 0.076
0.219 ± 0.069
0.165 ± 0.068
0.229 ± 0.078
0.592 ±0.110
0.422 ± 0.094
0.341 ± 0.069
0.361 ± 0.071
0.450 ± 0.084
oo
Note: Core sediment samples were batched together as one matrix. Per the approved sampling plan, only a percentage of samples
based on the highest gross alpha and gross beta concentrations were analyzed for uranium content. None of the study core
sediment samples contained the highest gross alpha or gross beta concentrations. Therefore, uranium analysis was not
conducted for study core sediment samples. All background samples were analyzed for uranium.
-------
TABLE A.21
Thorium Results for Core Sediment Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.02134
SDH 97 .02138
SDH 97.02153
SDH 97.02158
SDH 97.02167
SDH 97.02173
Field Sample Number
S-021-C,TOP5CM
S-076-C, TOP 5 CM
S-054-C, BOTTOM 12 CM
S-063-C, TOP 5 CM
S-025-C, 4TH 5 CM
S-lll-C, 2ND 5 CM
Activity
(pCi / g-dry weight ± 2a counting error)
227Th
0.025 ± 0.027
0.050 ± 0.058
0.027 ± 0.027
0.032 ±0.031
0.022 ± 0.040
0.027 ± 0.034
228Th
0.345 ± 0.074
0.509 + 0.128
0.679 + 0.098
0.485 ± 0.088
0.517 ±0.105
0.580 + 0.099
230Th
0.531 ±0.091
0.824 + 0.154
0.752 ±0.102
0.562 ± 0.095
0.483 ± 0.096
0.664 + 0.106
232Th
0.451 +0.083
0.896 + 0.161
1.047 ±0.1 23
0.607 ± 0.099
0.640 + 0.110
0.663 ±0.106
BACKGROUND SAMPLES
SDH 97.02128
SDH 97.02129
SDH 97.02130
SDH 97.02131
SDH 97. 021 32
SDH 97.02 133
SDH 97.02 146
SDH 97.02147
SDH 97.02148
SDH 97.02149
S-120-C-BG,TOP5CM
S-120-C-BG, 2ND 5 CM
S-120-C-BG,3RD5CM
S-120-C-BG, BOTTOM 12 CM
S-121-C-BG,TOP5CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG,TOP5CM
S-119-C-BG,2NDCM
S-119-C-BG, 3RD 5 CM
S-119-C-BG, BOTTOM 11 CM
-0.004 ± 0.008
0.031 ±0.040
-0.011 ±0.011
0.025+0.031
0.041 ± 0.038
0.051 ±0.051
0.003 ± 0.027
0.024 ± 0.029
0.062 ± 0.044
0.025 + 0.026
0.1 74 ±0.071
0.1 84 ±0.069
0.1 67 ±0.057
0.119 + 0.048
0.624 ±0.1 05
0.465 + 0.110
0.3 19 ±0.081
0.342 + 0.077
0.429 ± 0.088
0.359 + 0.069
0.222 ± 0.078
0.193+0.061
0.147 + 0.052
0.164 + 0.053
0.536 ± 0.097
0.300 ± 0.083
0.410 ±0.089
0.406 ±0.081
0.502 + 0.095
0.394 + 0.071
0.145 + 0.062
0.214 ± 0.064
0.175 + 0.056
0.1 45 ±0.050
0.678 ±0.1 10
0.614 ±0.120
0.436 ± 0.092
0.456 ± 0.086
0.510 + 0.095
0.432 ± 0.075
Note: Core sediment samples were batched together as one matrix. Per the approved sampling plan, only a percentage of samples
based on the highest gross alpha and gross beta concentrations were analyzed for thorium content. None of the study core
sediment samples contained the highest gross alpha or gross beta concentrations. Therefore, thorium analysis was not
conducted for study core sediment samples. All background samples were analyzed for thorium.
-------
TABLE A.22
Plutonium Results for Core Sediment Samples taken in San Diego Harbor
vo
STUDY SAMPLES
NAREL Samole ID
SDH 97.02 134
SDH 97 .02138
SDH 97.02 153
SDH 97. 02 158
SDH 97.02167
SDH 97.02173
BACKGROUND SAM
SDH 97.02128
SDH 97. 02 129
SDH 97 .02 130
SDH 97 .02131
SDH 97 .02 132
SDH 97.02 133
SDH 97.02146
SDH 97.02 147
SDH 97.02148
SDH 97.02 149
Field Sample Number
S-021-C, TOP 5 CM
S-076-C, TOP 5 CM
S-054-C, BOTTOM 12 CM
S-063-C, TOP 5 CM
S-025-C, 4TH 5 CM
S-111-C,2ND5CM
PLES
S-120-C-BG,TOP5CM
S-120-C-BG, 2ND 5 CM
S-120-C-BG, 3RD 5 CM
S-120-C-BG, BOTTOM 12 CM
S-121-C-BG,TOP5CM
S-121-C-BG, BOTTOM 4 CM
S-119-C-BG,TOP5CM
S-119-C-BG,2NDCM
S-119-C-BG,3RD5CM
S-l 19-C-BG, BOTTOM 1 1 CM
Activity
(pCi / g-dry weight ± 2a counting error)
238pu
0.001 ± 0.015
0.006 ±0.016
0.013 ± 0.026
0.022 ± 0.029
0.032 ± 0.034
0.002 ±0.015
-0.023 ± 0.027
0.018 ± 0.035
-0.004 ± 0.009
0.014 ± 0.018
0.003 ± 0.018
0.000 ± 0.017
0.003 ± 0.037
0.014 ± 0.018
0.005 ± 0.035
0.008 ± 0.016
239/240pu
0.004 ± 0.008
0.001 ± 0.006
0.009 ± 0.013
0.005 ± 0.012
0.008 ± 0.015
0.007 ± 0.009
-0.007 ±0.012
0.012 ± 0.017
0.003 ± 0.007
0.006 ± 0.009
0.002 ± 0.003
0.002 ± 0.003
0.014 ± 0.018
0.005 ± 0.009
0.005 ± 0.010
0.002 ± 0.006
Note: Core sediment samples were batched together as one matrix. Per the approved sampling plan, only a percentage
of samples based on the highest gross alpha and gross beta concentrations were analyzed for plutonium content.
None of the study core sediment samples contained the highest gross alpha or gross beta concentrations.
Therefore, plutonium analysis was not conducted for study core sediment samples. All background samples were
analyzed for plutonium.
-------
TABLE A.23.a
Gamma Spectrometry Results for Biota Samples taken in San Diego Harbor
Uranium and Actinium Chain Gamma Emitting Radionuclides
STUDY SAMPLES
NAREL Samnle ID
SDH 97.01948
SDH 97.01 949
SDH 97.01950
SDH 97.01951
SDH 97.01952
SDH 97.021 17
SDH 97.021 16
SDH 97.02123
SDH 97.02178
SDH 97.02179
Field Sample, Number
S-025-BSF
S-025-BSF-DUP
S-063-BSF
S-063-BBK
S-063-BC
S-021-BSC
S-021-BSC-DUP
S-082-BC
S-111-BSC
S-082-BSF
Activity
(pCi / g-wet ± 2o counting error)
234Th
0.092 ± 0.047
0.121 ± 0.045
ND
0.147 ± 0.107
ND
0.247 ± 0.057
ND
ND
0.316 ± 0.057
ND
I34,npa
ND
ND
ND
ND
ND
0.45 ±0.19
0.35 ± 0.20
ND
0.27 ±0.18
ND
226Ra
0.094 ± 0.056
0.141 ± 0.054
0.061 ± 0.048
ND
ND
0.072 ± 0.049
0.048 ± 0.051
ND
0.069 ± 0.062
0.064 ± 0.050
2l4pb
ND
ND
ND
ND
0.0125 ± 0.0060
0.0191 ± 0.0040
0.0151 ± 0.0040
0.0151 ± 0.0037
0.0278 ± 0.0045
ND
2l4Bi
ND
ND
ND
ND
0.0113 ± 0.0066
0.0184 ± 0.0036
0.0181 ± 0.0034
0.0117 ± 0.0040
0.0266 ± 0.0039
ND
2«U
ND
0.0088 ± 0.0032
ND
ND
ND
ND
ND
ND
ND
ND
BACKGROUND SAMPLES
SDH 97.021 18
SDH 97.021 19
SDH 97.021 20
SDH 97.021 21
SDH 97.02122
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
ND
ND
ND
ND
0.056 ± 0.054
ND
ND
ND
ND
ND
0.118 ±0.060
ND
ND
ND
0.052 ± 0.075
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0143 ± 0.0067
ND
ND
ND
ND
ND
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.23.b
Gamma Spectrometry Results for Biota Samples taken in San Diego Harbor
Thorium Chain and other Gamma Emitting Radionuclides
STUDY SAMPLES
NAREL
Samnle ID
SDH 97.01948
SDH 97.01949
SDH 97.01950
SDH 97.01951
SDH 97.01952
SDH 97.021 17
SDH 97 .021 16
SDH 97.02123
SDH 97.02178
SDH 97.02179
Field Sample
lumber
S-025-BSF
S-025-BSF-DUP
S-063-BSF
S-063-BBK
S-063-BC
S-021-BSC
S-021-BSC-DUP
S-082-BC
S-111-BSC
S-082-BSF
Activity
(pCi / g-wet ± 2o counting error)
228Ra
ND
ND
ND
ND
0.0271 ± 0.0076
ND
ND
ND
ND
ND
212Pb
ND
0.0041 ± 0.0040
ND
ND
0.0166 ± 0.0049
0.0303 ± 0.0058
0.0196 ± 0.0043
0.0119 ±0.0050
0.0337 ± 0.0060
ND
2,2Bj
ND
ND
ND
ND
0.035 ± 0.031
ND
ND
ND
0.039 ± 0.020
ND
™T1
ND
ND
ND
0.0076 ± 0.0090
0.0064 ± 0.0033
0.0074 ± 0.0022
0.0058 ± 0.0021
0,0031 ±0.0020
0.0098 ± 0.0021
ND
7Be
ND
ND
ND
ND
ND
0.028 ± 0.022
0.048 ± 0.024
ND
0.039 ± 0.024
ND
60Co
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
60Co
MDA
0.0055
0.0057
0.0038
0.0296
0.0067
0.0037
0.0043
0.0042
0.0036
0.0037
mCs
ND
ND
ND
ND
ND
0.005 ± 0.002
0.002 ± 0.001
ND
0.006 ± 0.002
ND
40K
1.720 + 0.068
1.470 ±0.063
2. 160 ±0.058
14.20 + 0.427
1.700 ±0.075
1.1 90 ±0.047
1.020 + 0.043
1.790+0.056
1.330 ±0.049
2.130 + 0.056
BACKGROUND SAMPLES
SDH 97.021 18
SDH 97.021 19
SDH 97.02120
SDH 97.02121
SDH 97 .02 122
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-H9-BSP-BG
ND
ND
ND
ND
0.0255 ± 0.0079
ND
0.0089 ± 0.0100
ND
ND
0.0349 ± 0.0066
ND
ND
ND
ND
0.080 ± 0.034
ND
ND
ND
ND
0.0119 ±0.0038
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.0054
0.0134
0.0145
0.0143
0.0066
ND
ND
ND
ND
0.003 ± 0.002
.160 + 0.060
12. 70 ±0.226
13.80 + 0.204
12.60 ±0.229
1 .840 ± 0.077
U>
ND = Radionuclide was not detected by gamma spectrometry.
-------
TABLE A.24
Gross Alpha and Gross Beta Results for Biota Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97 .01948
SDH 97.0 1949
SDH 97.01950
SDH 97.01951
SDH 97.01952
SDH 97.02 117
SDH 97.021 16
SDH 97.02 123
SDH 97.02178
SDH 97. 02 179
Field Sample Number
S-025-BSF
S-025-BSF-DUP
S-063-BSF
S-063-BBK
S-063-BC
S-021-BSC
S-021-BSC-DUP
S-082-BC
S-111-BSC
S-082-BSF
Activity
(pCi / g-wet weight ± 2o counting error)
Gross Alpha
0.87 ± 0.55
1.29 ± 0.72
1.66 ± 0.81
0.08 ± 0.20
0.24 ± 0.82
0.22 ± 0.18
0.20 ± 0.16
1.16 ± 0.89
0.24 ± 0.18
1.99 ± 0.75
Gross Beta
1.69 ± 0.34
0.94 ± 0.36
1.76 ± 0.39
15.11 ± 0.60
2.63 ± 0.69
0.91 ± 0.14
0.91 ± 0.13
2.55 ± 0.55
0.93 ± 0.14
3.13 ± 0.41
BACKGROUND SAMPLES
SDH 97.021 18
SDH 97.02 119
SDH 97.02 120
SDH 97. 02 121
SDH 97.02 122
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
0.76 ± 0.63
0.20 ± 0.21
0.24 ± 0.22
0.19 ± 0.22
1.70 ± 0.94
1.98 ± 0.43
11.89 ± 0.54
13.44 ± 0.51
12.93 ± 0.54
2.70 ± 0.53
-------
TABLE A.25
Radium-226 Results for Biota Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Samole ID
97.01950J
Field Samcle Number
S-063-BSF
Activity
(pCi / g-wet weight ± 2-o counting error)
226Ra
0.0154 ± 0.0028
BACKGROUND SAMPLES
97.02 118M
97.02119N
97.02 120F
97.02121G
97.02 122H
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
0.0220 ± 0.0034
0.0162 ± 0.0017
0.0087 ± 0.0012
0.0157 ± 0.0015
0.0572 ± 0.0050
Note: Biota samples were batched together as one matrix. Per the approved sampling plan, only
a percentage of samples based on the highest gross alpha and gross beta concentrations were
analyzed for radium-226 content. None of the study biota samples contained the highest
gross alpha or gross beta concentrations. Therefore, radium-226 analysis was not conducted
for study biota samples. All background samples were analyzed for radium-226.
-------
TABLE A.26
Uranium Results for Biota Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97.01950
BACKGROUND SAM
SDH 97 .021 18
SDH 97.021 19
SDH 97.02120
SDH 97.02121
SDH 97.02 122
Field Sample Number
S-063-BSF
Activity
(pCi / g-wet weight ± 2o counting error)
234U
0.109 ± 0.016
235U
0.0069 ± 0.0042
238U
0.098 ±0.015
[PLES
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
0.161 ± 0.022
0.017 ± 0.004
0.014 ± 0.004
0.017 ± 0.004
0.060 ±0.013
0.0053 ± 0.0040
0.0026 ± 0.0017
0.0015 ± 0.0013
0.0010 ± 0.0012
0.0008 ± 0.0023
0.140 ± 0.020
0.017 ± 0.004
0.014 ± 0.004
0.014 ± 0.004
0.050 ± 0.012
Note: Biota samples were batched together as one matrix. Per the approved sampling plan, only a percentage of samples based
on the highest gross alpha and gross beta concentrations were analyzed for uranium content. None of the study biota
samples contained the highest gross alpha or gross beta concentrations. Therefore, uranium analysis was not conducted
for study biota samples. All background samples were analyzed for uranium.
-------
TABLE A.27
Thorium Results for Biota Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample
ID
SDH 97.01950
Field Sample
Number
S-063-BSF
BACKGROUND SAMPLES
SDH 97.021 18
SDH 97.021 19
SDH 97.02120
SDH 97.021 21
SDH 97 .02 122
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
Activity
(pCi / g-wet weight ± 2o counting error)
-Th
-0.0002 ± 0.0024
0.0017 ± 0.0037
0.0004 ± 0.0012
0.0001 ± 0.0005
0.0006 ± 0.0009
0.0028 ± 0.0036
-Th
-0.0016 ± 0.0048
0.0011 ± 0.0055
0.0022 ± 0.0025
-0.0010 ± 0.0012
-0.0003 ± 0.0015
0.0436 ± 0.0100
230Th
0.0041 ± 0.0028
232Th
0.0016 ±0.0018
0.0030 ± 0.0027
0.0032 ± 0.0016
0.0007 ± 0.0006
0.0012 ± 0.0008
0.0445 ± 0.0087
0.0003 ± 0.0018
0.0026 ± 0.0016
0.0015 ± 0.0008
0.0000 ± 0.0000
0.0651 ± 0.0106
Note: Biota samples were batched together as one matrix. Per the approved sampling plan, only a percentage of samples
based on the highest gross alpha and gross beta concentrations were analyzed for thorium content. None of
the study biota samples contained the highest gross alpha or gross beta concentrations. Therefore, thorium
analysis was not conducted for study biota samples. All background samples were analyzed for thorium.
-------
TABLE A.28
Plutonium Results for Biota Samples taken in San Diego Harbor
STUDY SAMPLES
NAREL Sample ID
SDH 97. 01 950
BACKGROUND SAM
SDH 97.021 18
SDH 97.02 119
SDH 97.02120
SDH 97.02 121
SDH 97 .02 122
Field Sample Number
S-063-BSF
Activity
(pCi / g-wet weight ± 2o counting error)
238pu
-0.00030 ± 0.00152
239/240pu
0.00015 ± 0.00099
PLES
S-120-BSF-BG
S-121-BBK-BG
S-121-BBPS-BG
S-120-BBK-BG
S-119-BSP-BG
-0.00018 ± 0.00189
0.00048 ± 0.00088
0.00006 ± 0.00061
-0.00087 ± 0.00139
0.00226 ± 0.00398
0.00077 ± 0.00172
0.00036 ± 0.00076
-0.00013 ± 0.00018
0.00007 ± 0.00064
-0.00035 ± 0.00130
oo
Note: Biota samples were batched together as one matrix. Per the approved sampling plan, only a percentage of
samples based on the highest gross alpha and gross beta concentrations were analyzed for plutonium content.
None of the study biota samples contained the highest gross alpha or gross beta concentrations. Therefore,
plutonium analysis was not conducted for study biota samples. All background samples were analyzed for
plutonium.
-------
TABLE A.29
External Gamma Radiation Measurements taken at San Diego Harbor using Various Radiation Detection Instruments
Field Location Number
S128
S130
S131
S132
S134
S135
S136
S137
S139
S140
S147
S148
S149
Pressurized Ion Chamber (PIC) (uR/h)*
9.5
6.7
9.4
7.7
7.0
6.5
6.9
6.7
6.6
7.7
4.7
4.4
4.8
Genitron (uR/h)**
10.8
10.3
10.4
10.9
11.2
8.0
7.7
8.2
8.0
9.7
N/A
N/A
N/A
E-600 (cpm)
2100
1180
1425
1575
1345
1360
1300
1470
1340
1700
N/A
N/A
N/A
BACKGROUND LOCATIONS
S129
S133
S138
9.9
6.5
7.6
10.8
8.2
7.9
2750
1100
1685
* = Converted from mR/h
** = Converted from nS/h
N/A = Not applicable, no measurement was made with this instrument at this location.
------- |