United States
Environmental Protection
Agency
Office of Radiation and Indoor Air
National Air and Radiation
Environmental Laboratory
540 South Morris Avenue
Montgomery, AL 36115-2601
EPA-402-R-01-014
November 2001
Radiological Survey of the
Pearl Harbor Naval Complex
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 50% Postconsumer)
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Radiological Survey of the
Pearl Harbor Naval Complex
Prepared by
Kenneth R. Pohl, Ph.D.
November 2001
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
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CONTENTS
EXECUTIVE SUMMARY vii
ACKNOWLEDGMENTS ix
ILLUSTRATIONS xi
TABLES xiii
ABBREVIATIONS xv
1.0 INTRODUCTION 1
1.1 Site Description and History 1
1.2 Survey History 2
1.3 Contaminants of Concern 3
1.4 Study Objectives 4
2.0 SAMPLING, MEASUREMENT, AND ANALYSIS 9
2.1 Sampling and Measurement Strategy 9
2.2 Samples 10
2.2.1 Sample Identification 10
2.2.2 Sample Collection and Preparation 10
2.2.3 Sample Analysis 12
2.3 Radiation Measurements 13
2.4 Locational Data 14
3.0 RESULTS AND DISCUSSION 25
3.1 Water Samples 25
3.1.1 Surface Water 25
3.1.2 Drinking Water 26
3.2 Sediment and Sediment Core Samples 26
3.2.1 Harbor-Bottom and Intertidal Shoreline Sediment 26
3.2.2 Sediment Core Samples 27
3.3 Biota Samples 28
iii
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CONTENTS (continued)
3.4 External Radiation Measurements 28
3.4.1 Underwater Probe Measurements 28
3.4.2 Exposure-Rate Measurements 29
3.5 Cobalt-60 in Sediment 29
3.5.1 Cobalt-60 Contamination Levels 29
3.5.2 Nickel-63 Inferred Contamination Levels 30
3.6 Gross Alpha and Beta Radioactivity in Sediment 30
3.7 Human Health Risks 31
4.0 QUALITY ASSURANCE / QUALITY CONTROL 33
5.0 CONCLUSIONS 35
6.0 REFERENCES 37
APPENDIX A: Radioanalytical Results and Field Measurement Results 39
APPENDIX B: Evaluation of Cobalt-60 in Sediment 119
APPENDIX C: Evaluation of Gross Alpha and Beta Radioactivity in Sediment 129
IV
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EXECUTIVE SUMMARY
This report presents the results of a radiological survey conducted in April of 1998 by the U.S.
Environmental Protection Agency's National Air and Radiation Environmental Laboratory to
assess levels of radioactivity in the environment in and around the Pearl Harbor Naval Complex
in Pearl Harbor, HI. The purpose of the survey was to determine whether the maintenance,
overhaul, refueling, or operation of nuclear-powered warships has resulted in the release of
radioactivity into the marine environment which could expose nearby populations or contaminate
the environment.
In the survey, 187 samples of sediment, sediment cores, harbor water, drinking water, and sea
life were collected and analyzed. All samples were analyzed for total alpha activity, total beta
activity, and for gamma-ray emitting radionuclides. Water samples were analyzed for tritium.
Selected sediment samples were analyzed for selected radioactive isotopes of uranium,
plutonium, thorium, strontium, and technetium. In addition, measurements of environmental
gamma-ray radiation levels were performed at all sample locations and at 35 on-shore locations
in and around the naval complex.
With the exception of cobalt-60, levels of radioactivity in all samples were consistent with levels
expected to exist due to naturally-occurring radioactivity or fallout from atmospheric tests and
the Chernobyl reactor accident of 1986. Small but statistically significant increases in total
radioactivity levels were found in sediment near the shipyard. The increases cannot be attributed
to nuclear-power operations and may be the result of differences in soil chemistry. Measurable
levels of cobalt-60 were found in numerous sediment and sediment core samples collected in
Southeast Loch, which contains much of the Pearl Harbor Naval Shipyard and Naval Station.
Levels of cobalt-60 in surface sediment samples collected in Southeast Loch ranged from less
than 0.01 pCi/g (picocuries per gram-dry-weight) to 0.15 pCi/g, with an average of 0.03 pCi/g.
Sediment core samples in Southeast Loch show a nearly uniform distribution of contamination
throughout the top 50 cm of sediment.
Statistical analysis of the cobalt-60 results shows that the current level of contamination can be
attributed to previously-known releases dating back to the 1960's. There is no evidence that
cobalt-60 has been released in Pearl Harbor since the previous Environmental Protection Agency
survey in 1985.
Based on this radiological survey, practices regarding nuclear-powered warship operations at the
Pearl Harbor Naval Complex have resulted in no radioactive releases which will cause
significant population exposure or impact on the environment.
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ACKNOWLEDGMENTS
The EPA survey team included Ted Fowler, Mike Smith, Vicki Lloyd, Roger Goodman, Dave
Norwood, and Ken Pohl. The staff of the Pearl Harbor Naval Shipyard were extremely helpful
in planning and carrying out this survey, and helped ensure the on-site work occurred smoothly.
Sample processing and analysis were performed by the staff of the NAREL Monitoring and
Analytical Services Branch.
DISCLAIMER
Mention of trade names or commercial products does not constitute endorsement or
recommendation for use.
VII
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ILLUSTRATIONS
Fig. 1.1 Pearl Harbor and Environs 5
Fig. 1.2 Pearl Harbor Naval Shipyard and the northwest end of the Pearl Harbor
Naval Station 6
Fig. 1.3 Pearl Harbor Naval Station, Submarine Base, and the Fleet Industrial Supply
Center 7
Fig. 2.1 Sample and measurement locations in Pearl Harbor and surrounding areas 22
Fig. 2.2 Sample and measurement locations in the Pearl Harbor Naval Shipyard 23
Fig. 2.3 Sample and measurement locations in the Pearl Harbor Naval Station,
Submarine Base, and Fleet Industrial Supply Center 24
Fig. 3.1 Cobalt-60 concentrations in harbor sediment 32
Fig. B. 1 Comparison of cobalt-60 concentrations in Pearl Harbor Southeast Loch sediment
from 1985 and 1998 123
Fig. C. 1 Average alpha and net beta radioactivity in top four slices of sediment core
samples 135
IX
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TABLES
Table 1 Sample and Measurement Locations 15
Table 2 Sample and Measurement Codes 21
Table A.I Gamma Spectrometry Results for Surface Water Samples 41
Table A.2 Tritium Results for Surface Water Samples 42
Table A.3 Gross Alpha and Gross Beta Activity Results for Surface Water Samples 43
Table A.4 Gamma Spectrometry Results for Drinking Water Samples 44
Table A.5 Tritium Results for Drinking Water Samples 44
Table A.6 Gross Alpha and Gross Beta Activity Results for Drinking Water Samples .... 45
Table A.7 Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples
Uranium and Actinium Decay Chains 46
Table A.8 Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples
Thorium Decay Chain and Other Gamma-Emitting Radionuclides 54
Table A.9 Gross Alpha and Gross Beta Activity Results for Harbor and Shoreline Sediment
Samples 61
Table A. 10 Thorium and Strontium Radiochemical Results for Harbor and Shoreline
Sediment Samples 67
Table A.I 1 Uranium, Plutonium, and Technetium Radiochemical Results for Harbor and
Shoreline Sediment Samples 67
Table A. 12 Gamma Spectrometry Results for Sediment Core Samples Uranium and Actinium
Decay Chains 68
Table A. 13 Gamma Spectrometry Results for Sediment Core Samples Thorium Decay
Chain 83
Table A. 14 Gamma Spectrometry Results for Sediment Core Samples Other Gamma-Ray
Emitting Radionuclides 92
Table A. 15 Gross Alpha and Gross Beta Activity Results for Sediment Core Samples ... 102
XI
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Table A. 16 Average Gross Alpha and Gross Beta Concentrations for Core Samples 113
Table A. 17 Gamma Spectrometry Results for Biota Samples 1 ^
Table A. 18 Gross Alpha and Gross Beta Activity Results for Biota Samples 116
Table A.19 On-Shore Exposure Rates U1
Table B.I Cobalt-60 Sediment Data used in the Wilcoxon-Rank-Sum Test 124
Table C.I Alpha & Beta Radioactivity in Selected Sediment Samples 134
xn
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ABBREVIATIONS
CIA Controlled Industrial Area
cm Centimeter
FISC Fleet Industrial Supply Center
GPS Global Positioning System
IAG Inter-Agency Agreement
m Meter
Microroentgen (10~6 roentgen of y-ray exposure)
Microroentgen per hour
MDC Minimum Detectable Concentration
NAREL National Air and Radiation Environmental Laboratory
NAVMAG Naval Magazine
NAVSEA Naval Sea Systems Command
NAVSTA Naval Station
ND Not Detected
pCi Picocurie (10~12 curies of radioactivity)
pCi/g Picocuries per gram-dry-weight
pCi/g-ash Picocuries per gram-ashed-weight
pCi/g-wet Picocuries per gram-wet-weight
pCi/L Picocuries per liter
PHNC Pearl Harbor Naval Complex
PHNS Pearl Harbor Naval Shipyard
PIC Pressurized lonization Chamber
SUBASE Submarine Base
USEPA United States Environmental Protection Agency
Xlll
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1.0 INTRODUCTION
The National Air and Radiation Environmental Laboratory (NAREL) of the U.S. Environmental
Protection Agency (USEPA) in cooperation with the U.S. Naval Sea Systems Command
(NAVSEA) has conducted an ongoing program to survey facilities serving nuclear-powered
warships. These surveys began in 1963 and have been conducted on the Atlantic and Pacific
coasts, on the Gulf of Mexico of the Continental United States, and in Pearl Harbor, Hawaii. In
1996, this program was renewed by the signing of an interagency agreement (IAG) by NAVSEA
and USEPA to continue radiological studies over the next five years at active facilities serving
nuclear-powered warships. These studies assess whether the construction, maintenance,
overhaul, or refueling of nuclear-powered warships have created elevated levels of radioactivity
in the marine environment that could result in potential exposure to nearby populations.
The first environmental survey under the IAG was performed September 9-20, 1996, at the
Puget Sound Naval Shipyard at Bremerton, WA and the Naval Submarine Base near Bangor,
WA. The second environmental survey 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. The third survey was performed September 8-16, 1997, at the Portsmouth
Naval Shipyard, Kittery, Maine.
The fourth environmental survey performed under the IAG occurred April 13-24, 1998, at the
Pearl Harbor Naval Complex (PHNC) in Hawaii. A pre-survey trip was conducted February 24-
25, 1998, to prepare a sampling and survey work plan with the assistance of knowledgeable
NAVSEA and PHNC personnel. NAVSEA and PHNC staff provided NAREL personnel with
information on past and present shipyard radiological operations and procedures. Based on the
information received and that derived from previous USEPA surveys, a study design and work
plan were formulated. The work plan (EPA98b) described the approach to be used for assessing
the radiological condition of the aquatic environment of Pearl Harbor in general and the Pearl
Harbor Naval Complex in particular.
1.1 Site Description and History
Pearl Harbor is located in the Hawaiian Islands on the southern shore of Oahu, 10 miles
northwest of Honolulu. The Harbor consists of West, Middle, East, and Southeast lochs, which
are connected by Main Channel, North Channel, and South Channel (see Fig. 1.1). The
Southeast Loch is further divided into Magazine, Quarry, and Merry lochs. Pearl Harbor is a
principal harbor for U.S. Navy activities and is the base of Navy operations for the mid-Pacific.
Pearl Harbor's water surface area of approximately 8 square miles, approximately 36 miles of
linear shoreline, and more than 12 miles of docks accommodate all classes of Naval vessels,
including the largest aircraft carriers.
The Pearl Harbor Naval Complex includes: the Pearl Harbor Naval Shipyard (PHNS); Naval
Submarine Base (SUBASE); Naval Station (NAVSTA); Fleet Industrial Supply Center; and the
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Naval Magazine Lualualei (NAVMAG). (Note.--Although PHNS is currently named the Pearl
Harbor Naval Shipyard and Intermediate Maintenance Facility, this report will continue to use
the old abbreviation of PHNS). The PHNC is located in the south-central portion of the island
of Oahu, with Hickam Air Force Base immediately southeast and the extreme western edge of
Honolulu to the east. Aiea is located northeast and borders the eastern shore of East Loch. Pearl
City is to the north and the Pearl City Peninsula separates Middle and East lochs. The city of
Waipahu is to the northwest. The Waipio Peninsula separates Middle and West lochs. The
Pacific Ocean is to the south of PHNC. Maps of the shipyard, SUBASE, and FISC regions of
the PHNC are shown in Figs. 1.2 and 1.3.
The Pearl Harbor Naval Shipyard is the maintenance support complex for home-ported vessels,
and provides repair, overhaul, and modernization of Navy warships. The PHNS encompasses
about 160 acres of land. It is the largest industrial operation in the state of Hawaii, with nearly
200 buildings and some 3.5 million square feet of building space. The PHNS has four drydocks
and more than 12,000 feet of berthing and pier space.
The Naval Submarine Base is located on slightly over 100 acres of land. The SUBASE is home
port for about 20 nuclear submarines of the Pacific Fleet and provides facilities for operations,
training, maintenance, housing, and personnel support. Its mission is to maintain and operate
facilities to support training and experimental operations of the Submarine Force and to provide
logistical support to submarines, including their upkeep and repair.
The Pearl Harbor Naval Station controls the waters of Pearl Harbor and occupies about 6079
acres of land, including Ford Island, containing maintenance, administrative, supply, and training
buildings. NAVSTA facility operations include maintenance and minor repairs to surface ships
and waste collection.
The Naval Magazine Lualualei issues, receives, maintains, and renovates ammunition,
explosives, weapons, and ordnance. NAVMAG controls more than 12,000 acres of land,
including Waipio peninsula and the NAVMAG West Loch branch, along the southern shoreline
of West Loch. Weapons are loaded and unloaded from ships and submarines at the NAVMAG
Whiskey wharfs in West Loch. (Note: The preceding description of the site is based upon that
prepared by the Navy (PHNS97)).
1.2 Survey History
As early as 1966, the USEPA-NAREL (then the Southeastern Radiological Health Laboratory
of the U.S. Public Health Service) conducted extensive radiological surveys of Pearl Harbor.
The survey conducted in 1966 (Ca66, Ca72) detected levels of cobalt-60 (an activation product
associated with routine corrosion of steel components in nuclear power plants) as high as 105
pCi/g (picocuries per gram-dry-weight) in surface sediment. The highest concentrations occurred
in Quarry Loch in the submarine base. Sediment samples there ranged from 2 to 105 pCi/g.
Other areas of SUBASE had levels of up to 50 pCi/g, and sediment samples taken from the
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shipyard had cobalt-60 concentrations ranging up to 25 pCi/g. Most sediment samples taken in
the survey had cobalt-60 concentrations between 0.1 and 10 pCi/g. Samples from other areas
of the harbor showed generally lower concentrations, with samples from West and Middle lochs
having less than 0.5 pCi/g.
A 1968 survey, also reported in (Ca72), detected reduced levels of cobalt-60 in harbor sediments.
Again, the highest concentrations were found in the SUBASE samples, with concentrations of
up to 33 pCi/g. However, sediment core samples taken in that study revealed higher
concentrations at depths down to 55 cm. These levels were typically 1 to 60 pCi/g, with a
maximum of 248 pCi/g. The authors of (Ca72) concluded that the reduced levels in surface
sediments were due to decreased discharges from submarines coupled with radioactive decay of
cobalt-60, which has a 5.3 year half-life. The higher concentrations in core samples also
indicated that contaminated sediment was being covered over by uncontaminated sediment.
Cerium-144, detected in some 1968 sediment samples, was attributed to fallout.
Gross-alpha and gross-beta radioactivity measurements of sediment samples, when corrected for
cobalt-60 and potassium-40 (a naturally occurring radionuclide) revealed activities of less than
1 pCi/g. No cobalt-60 was detected in surface or drinking water at a 10 pCi/L (picocuries per
liter) detection limit, nor was cobalt-60 detected in marine biota samples at a 0.04 pCi/g-wet
(picocuries per gram-wet-weight) detection limit.
Pearl Harbor was re-surveyed by USEPA-NAREL (then called the Eastern Environmental
Radiation Facility) in 1985 (Ca87). Cobalt-60 was again found in harbor sediment and sediment
core samples from the shipyard and SUBASE, with concentrations of up to 0.66 pCi/g in
sediment and 2.0 pCi/g in cores. These results reinforced the conclusion that releases of
cobalt-60 into the harbor decreased significantly from the 1960's, and that the residual
contamination was being covered over by less contaminated or uncontaminated sedimentation.
No cobalt-60 was found in harbor water or marine animal samples in the 1985 survey. Cobalt-60
concentrations of 0.02 and 0.03 pCi/g-wet were measured in two marine plant samples taken in
the shipyard. Samples of drinking water from the shipyard and surrounding area were found to
contain no detectable levels of gamma-emitting radionuclides. Measurements of external
exposure in and around the PHNC ranged from 2 to 13 u^R/hr (micro-Roentgen per hour), with
the higher readings attributed to natural radioactivity in nearby concrete.
1.3 Contaminants of Concern
The results of previous harbor surveys, both at the PHNC and other harbors, indicate that
cobalt-60 is the predominant radionuclide one would find in environmental media if radioactivity
is present as a result of naval nuclear propulsion plant operations (Ca72, Ca87, Ma97).
Therefore, environmental sampling during this survey emphasized detection of cobalt-60.
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Other radionuclides of concern in liquid effluents, known to have been released from naval
nuclear propulsion operations, or encountered during maintenance work include tritium,
tungsten-187, chromium-51, hafnium-181, iron-59, iron-55, nickel-63, niobium-95,
zirconium-95, tantalum-182, manganese-54, and cobalt-58 (Ma97, Ab96, Sh93). Most of these
radionuclides have half lives of less than one year and would only be detectable within a few
years of a release. An exception is nickel-63, which has a half life of 100.1 years. The
production of nickel-63 is much lower than of cobalt-60, but due to its longer half life nickel-63
may still be present in the environment after cobalt-60 contamination has decayed to
undetectable levels.
Concentrations of cobalt-60 in harbor sediment samples from the 1985 survey (Ca87) ranged up
to 0.66 pCi/g, with an average of around 0.2 pCi/g. Radioactive decay of these levels to 1998
would leave cobalt-60 concentrations averaging about 0.04 pCi/g. Similarly, radioactive decay
of the cobalt-60 concentrations found in sediment core samples from 1985 implies
concentrations of up to 0.4 pCi/g in 1998, assuming no dispersion or mixing of contaminated and
uncontaminated sediment.
Based on theoretical calculations and on nickel-63/cobalt-60 ratio data from other sites (Ab96,
Sh93) nickel-63 concentrations at Pearl Harbor in 1998 are expected to be similar or slightly
higher than cobalt-60 concentrations. Nickel-63 is extremely difficult to detect and quantify at
these concentrations and analysis of sediment samples for nickel-63 was considered infeasible.
For purposes of this study, nickel-63 contamination levels are inferred from measured cobalt-60
levels.
1.4 Study Objectives
The objectives of this study were to determine if radioactive material related to US Naval
nuclear-powered warship operations, repair, and maintenance is present at measurable levels in
the harbors surveyed, to make comparisons of this current study with past study results, and, as
deemed appropriate, to estimate potential doses to the public.
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N Scale (meters)
A 500 0 500 1000 1500
Fig. 1.1. Pearl Harbor and Environs. Naval piers in West Loch, Middle Loch, and North Channel are shown. See Figs. 1.2 and 1.3
for details in the shipyard and naval station areas.
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CTs
N Scale (meters)
A 100 o 100 200 300
2
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0
\>
\
Scale (meters)
o 100 200 300
Fig. 1.3. Pearl Harbor Naval Station, Submarine Base, and the Fleet Industrial Supply Center.
See fig. 1.1 for an overview of Pearl Harbor and Fig. 1.2 for a map of the shipyard.
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2.0 SAMPLING, MEASUREMENT, AND ANALYSIS
The following terms will be used in the discussion of the field sampling and measurements:
Study Site - Portions of Pearl Harbor where berthing, tie-up, maintenance, overhaul, or similar
work has been performed on nuclear-powered surface ships or submarines. This includes the
shipyard, submarine base, naval station (including Ford Island), and the naval magazine Whiskey
piers. The study site is therefore comprised of selected areas of East Loch, Southeast Loch, West
Loch, Main Channel, North Channel, and South Channel, along with related shorelines and
onshore areas in the shipyard, naval station, and submarine base. Areas of Pearl Harbor outside
the study site include Middle Loch and the northwest end of West Loch.
Measurement Location - A location in or near the study site where gamma-ray exposure rates
were measured.
Sampling Location - A location in or near the study site from which samples were collected.
Background Location - A selected measurement or sampling location outside the study site.
Background 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 PHNC.
Therefore, representative levels of existing radionuclides in the samples as a result of worldwide
fallout and natural radioactivity could be measured. The background locations selected were in
Aiea Bay, Middle Loch and the northwest end of West Loch. The data from the study site were
compared directly to the background concentrations when applicable.
2.1 Sampling and Measurement Strategy
This study was intended to determine the concentrations of cobalt-60 and other selected
radionuclides that could be present due to the operations performed at the Pearl Harbor Naval
Complex. Sampling locations were preselected to correspond to the locations where the Navy
presently conducts environmental monitoring, locations where the USEPA-NAREL sampled in
the 1985 or 1968 survey, and locations which were selected by the USEPA-NAREL to more
comprehensively cover the study site.
In some cases, preselected sample or measurement locations could not be used due to the
presence of moored ships, construction, or unsuitable environmental conditions. In such cases,
a new location was selected as close to the planned location as possible. For administrative
purposes, the new location was given a new location identification number and the planned
location's identification number was deleted from the location list.
For a few locations where more than one type of sample was to be taken, more than one visit to
the location was required. In these cases, the original location identification number was used
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for the first visit and a new location identification number was generated for each subsequent
visit. This prevented uncertainty about each sample's collection point.
All sample and measurement locations are listed in Table 1 along with the types of samples or
measurements acquired. Sample and measurement type codes are listed in Table 2. Figures 2.1,
2.2, and 2.3 are maps showing the locations of each sample and measurement location.
2.2 Samples
2.2.1 Sample Identification
Each sample collected during the survey was marked with a unique code which denoted
• collection location
• matrix (and species for biota)
if the sample was a field duplicate
• if the collection location was a background location
The sample code has the form PHNCxxx-mmm-DU-BK, where 'xxx' is a number indicating the
sampling location and 'mmm' is a text code identifying the matrix (and species for biota
samples.) The suffix '-DU' was attached only if the sample was a duplicate sample and the
suffix '-BK' only if the sample was acquired at a background location. Table 1 shows locations
which were identified as backgrounds and locations where duplicate samples were collected.
Matrix codes used in this study are listed in Table 2. The only species of biota collected was a
type of sponge, for which the combined matrix and species code is 'BSP'.
2.2.2 Sample Collection and Preparation
Harbor sediment, shoreline sediment, sediment core, harbor surface water, drinking water, and
biota were sampled. All samples were analyzed by the USEPA for gross alpha and gross beta
radioactivity and for gamma-ray emitting radionuclides. Water samples were also analyzed for
tritium content. All sample collection followed the standard operating procedures listed in
Appendix A of (EPA98a). Most samples collected in this study were split in the field for routine
independent analysis by the Navy, and approximately 10% of samples were quality control
duplicates. With the exception of sediment cores, duplicate and split samples were composited
before division. Sediment core duplicates were collocated.
The collection, preparation, and analysis of each sample type is as follows:
Sediment - Approximately four liters of harbor-bottom sediment were collected from the too 10
cm of the harbor floor with a Petersen dredge. Sediment samples were oven-dried and
homogenized prior to analysis. A total of 108 sediment samples were collected, of which ten
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were duplicate samples collected for quality assurance purposes. In addition, five samples were
analyzed for strontium-90 and for isotopes of uranium, plutonium, and thorium. Three of these
were chosen because they showed slightly elevated gross alpha and gross beta radioactivity. One
was collected near these three, but had typical gross alpha and gross beta content. The last was
a background sample analyzed for comparison. Five samples were also analyzed for
technetium-99 for similar reasons.
Shoreline Sediment - Approximately four liters of surface soil were collected by trowel from the
intertidal shoreline near the low tide line. Stones and organic debris were excluded as much as
possible. Shoreline samples were oven-dried and homogenized before analysis. A total of
twelve shoreline samples were collected, of which two were duplicate samples collected for
quality assurance purposes.
Sediment Core - A 5 cm diameter cylinder of harbor sediment up to 55 cm in length was
collected by Navy divers who pushed a plastic tube vertically into the harbor bottom as far as
possible, then capped the ends. Excess water was decanted from the top of each core. The cores
were frozen prior to shipping and cut into slices on receipt at the laboratory. All slices were 5
cm thick except for the bottom slice, which was between 5 and 10 cm thick. Each core slice was
oven-dried before analysis. A total of 33 core samples were collected, of which three were
duplicate samples collected for quality assurance purposes. The 33 cores were divided into a total
of 245 slices for analysis.
Surface Water Approximately 4.5 liters of harbor water were collected with a horizontal
Wildco alpha bottle at a depth of one meter. Samples were divided into two portions. About
four liters of water was poured into a plastic container and acidified with nitric acid to a pH of
less than 2.0. The remaining 0.5 liters was poured into a glass container but was not acidified.
The four-liter portion was analyzed for gross alpha, gross beta, and gamma-ray emitting
radionuclide activity. The 0.5 liter portion was analyzed for tritium activity. There were no
visible suspended solids in any surface water sample. A total of fourteen surface water samples
were collected, of which two were duplicate samples collected for quality assurance purposes.
In addition, two double-blind samples were collected. These were samples to which radioactivity
was added without the knowledge of the laboratory analysts for the purpose of quality assurance
testing.
Drinking Water - Approximately 4.5 liters of tap water were collected. The drinking water
samples were divided, prepared, and analyzed in the same manner as the surface water samples.
A total of six drinking water samples were collected, of which two were duplicate samples
collected for quality assurance purposes.
Biota - Approximately four liters of one species of marine life were collected. Biota samples
were collected by Navy divers from as small a region of the harbor bottom as possible (typically
less than 150 square meters.) The divers were instructed to collect the predominant species at
a location, both plant and animal, without collecting species protected by law. Chemical
contamination from industrial activities and bacterial infections have resulted in a significant
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decrease in the abundance of marine biota in Pearl Harbor (Gr92). Due to the sparsity of marine
life in Pearl Harbor, the only biota collected at any location was a species of sponge. Biota
samples were homogenized in the field, frozen for shipping, and thawed for radioanalysis. A
total of fourteen biota samples were collected, of which two were duplicate samples collected
for quality assurance purposes.
2.2.3 Sample Analysis
All samples were analyzed for gamma-emitting radionuclides and for gross alpha/beta activities.
All water samples were analyzed for tritium. Specific isotopic analyses were performed on
selected samples based primarily on the samples having higher gross alpha/beta results.
Gamma Spectrometry: This procedure allows for characterization of the gamma-emitting
radionuclides present in the sample without separating them from the sample matrix. The limit
of detectability of this method is a function of the sample size, counting geometry, detector
efficiency, background, counting time, gamma photon energy of the nuclide, and branching ratio
(percent abundance). Liquid samples are acidified and soil or sediment samples are ground and
sieved to ensure the homogeneity of the samples. Biota samples are homogenized prior to
analysis to ensure uniformity of the sample.
Gross Alpha/Beta: This procedure provides a rapid screening measurement and should be used
as a gross approximation of the alpha and beta activity present in the sample. Lower energy or
volatile radionuclides such as tritium, carbon-14, and iodine are not detected by this method. In
addition, polonium and cesium may be lost if the procedure requires flaming of the sample.
These analyses are not as accurate as their isotopic counterparts. For water samples, a known
amount of the sample is evaporated then transferred to a small container for measurement. For
solid samples, a known amount of the sample is placed in a container. Water is added and the
sample is dried to provide even distribution. The sample is then weighed and counted on a gas
proportional counter.
Tritium Analysis: Water samples are distilled and are incorporated into a counting mixture
consisting of a primary solvent, emulsifier, and fluors. The tritium is assayed in a liquid
scintillation spectrometer.
Specific isotopic analyses performed on selected sediment samples included uranium, thorium,
plutonium, technetium, and strontium by radiochemical separation.
Uranium and Thorium Isotopes: This procedure is applicable for the measurement of thorium-
232, thorium-230, thorium-228, and thorium-227 and for uranium-238, uranium-235, and
uranium-234. Solid samples containing large amounts of organic material are dried and ashed
before analysis by this procedure. Waters containing visible solid material are filtered before
analysis and the solid material analyzed separately if desired. Thorium-234 and uranium-232
tracers are added to the samples to determine chemical recovery. Solid samples are solubilized
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by treatment with hydrofluoric, nitric, perchloric, and hydrochloric acids. Water samples are
evaporated prior to extraction. The uranium is extracted into triisooctylamine (TIOA) from a
hydrochloric acid solution, eluted with dilute hydrochloric acid and nitric acid, purified and
coprecipitated. The thorium is purified by adsorption on an anion exchange resin, eluted, and
coprecipitated. Each actinide is radioassayed by alpha spectroscopy.
Plutonium Analysis: Solid samples containing large amounts of organic material are dried and
ashed before analysis by this procedure. Waters containing visible solid material are filtered
before analysis and the solid material analyzed separately if desired. Plutonium-242 tracer is
added to a weighed or measured sample aliquot. Solid samples are solubilized. Plutonium is
extracted from a hydrochloric acid solution of the sample into triisooctylamine (TIOA) solution
in para-xylene. After washing the TIOA with dilute hydrochloric acid, the plutonium is stripped
from the TIOA with dilute nitric acid and dilute hydrochloric acid. The strip solution is wet
ashed and the plutonium is coprecipitated with lanthanum as a fluoride. The precipitate is
filtered and radioassayed by alpha spectroscopy. This analytical procedure does not distinguish
between plutonium-239 and plutonium-240. Therefore, the total activity of these two isotopes
is reported.
Strontium Analysis: Solid samples are solubilized prior to analysis. Barium, calcium, and
strontium carriers are added, and magnesium is precipitated and removed at a pH of 3.8. Barium
and strontium are adsorbed on a cation exchange resin while calcium is eluted. Barium and
strontium are selectively eluted and strontium is precipitated. Strontium-89 and strontium-90
are radioassayed separately by measuring the ingrowth of yttrium-90.
Technetium-99 Analysis: Solid samples are solubilized prior to analysis. The technetium-99 is
then oxidized and collected on an Eichrom TEVA disc. Other beta-emitting radionuclides
including carbon-14, phosphorus-32, sulfur-35, cesium-137, and strontium-90, as well as
contaminants that quench liquid-scintillation counting pass through the disc and are separated
from the technetium-99. The disc is dissolved in a liquid-scintillation mixture and technetium-
99 is measured by liquid scintillation spectroscopy. Tritium, which may fail to be separated by
the Eichrom disc due to the absorption of tritium-labeled compounds, is eliminated in the liquid-
scintillation analysis by setting the detector energy window above the maximum energy for the
tritium beta particles. Chemical recovery is determined by analyzing a spiked aliquot of the
sample simultaneously.
2.3 Radiation Measurements
At all sampling locations, gamma-ray exposure measurements were performed using a Ludlum
Model 19 survey meter, which uses a 1" by 1" Nal(Tl) probe. At all on-shore measurement
locations, gamma-ray exposure measurements were made using a Reuter-Stokes RSS-112
Pressurized lonization Chamber (PIC) and a Genitron GammaTracer, which contains two energy-
compensated Geiger-Mueller detectors. To improve accuracy, the PIC measurements were
made by averaging over an interval of at least five minutes.
13
-------
Underwater measurements of gamma radiation at the harbor floor were made at selected
sampling locations, as shown in Table 1. These measurements used a NAREL-designed
watertight 6" x 6" Nal(Tl) detector coupled to an EG&G Ortec "NOMAD+" multichannel
analyzer. Spectral results were analyzed in the field in order to screen for areas of elevated
radioactivity.
2.4 Locational Data
For each sample and measurement location, the approximate geographical position (latitude and
longitude) of the location was determined in the field using either a Trimble Ensign or a Trimble
Scout global-positioning system (GPS) receiver. The resulting geographical positions are
generally assumed to be accurate to within approximately 100 meters.
The geographical positions of sample and measurement locations within Pearl Harbor and in the
vicinity of the shipyard and naval station were also determined by measuring line-of-sight
distances to nearby landmarks such as buildings and piers. The distances were measured using
a Bushnell YardagePro 400 laser rangefinder, which is accurate to within about two meters.
Ranges to at least two landmarks or one range and a compass bearing were recorded. The
resulting data were compared with maps of the naval complex to determine a location's latitude
and longitude. The maps used for this purpose were supplied in electronic or paper form by the
Navy, were georeferenced by the NAREL using the grid marks and datum information on each
map, and were converted to the North American Datum of 1983, Hawaii Zone 3 State Plane
Coordinate System. The accuracy of the conversion was checked by comparing the descriptions
of several National Geodetic Survey control points with their apparent positions when plotted
on the maps. The positional accuracy of this map-interpolation method is estimated to be
approximately 10 meters.
Since the second method produced more accurate positions, it was used whenever possible to
report the location of each sample or measurement site. The GPS position was used for locations
112, 113, and 114. Based on a comparison of the GPS positions and map-interpolation positions,
the GPS receiver used to determine these positions had an unusually large error. These three
positions are therefore assumed to be accurate to within 300 meters.
14
-------
TABLE 1
Sample and Measurement Locations
Location ID
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
17
18
Position b
r* r^
» O 9 n
S- ii 3 «>
a- a °B. ~
c sr £•
0- g
s-
21.34535 157.96634
21.34979 157.96749
21.35073 157.96595
21.35229 157.96392
21.35271 157.96328
21.35323 157.96286
21.35119 157.96313
21.35276 157.96190
21.35224 157.96068
21.35208 157.96017
21.35253 157.95958
21.35230 157.95899
21.35262 157.95869
21.35254 157.95801
21.35270 157.95720
21.35330 157.95679
21.35383 157.95653
1 Duplicate
DU
DU
1 Background
Samples and
Measurements c
O
O5 6S
§• ° S? ^ 1
5' o 5- 85 3
3 •« X SJ- P
n n> » « i
^ ^»
«• M
^
S C B U
L E
L E
L E
S
S C
L E
S
S C B U
S
S
S W
S
S
S C B U
S
S
Location Description
PHNS, 20 m offshore from the south side of drydock 4
PHNS, shoreline at Hospital Point
PHNS, shoreline about 150 m east of Hospital Point
PHNS, shoreline near Charlie landing and Bldg. 1264
PHNS, offshore 45 m from Bldg. 1274
PHNS, offshore 105 m, 10° magnetic from Bldg. 1274
PHNS, shoreline at Marine Railway #2
PHNS, offshore 200 m from Marine Railway #2
PHNS, pier GD-5
PHNS, pier GD-4, 15 m from drydock 3
PHNS, pier GD-3
PHNS, pier GD-2, 15 m from the drydock 2 caisson
PHNS, pier GD-2, 60 m from the drydock 2 caisson
PHNS, pier N-l, at the northwest end of drydock 1
PHNS, pier B-l, 80 m from the drydock 1 caisson
PHNS, pier B-l, 150 m from the drydock 1 caisson
PHNS, 12 m offshore from pier B-2, 408 m from the tip of pier B-3
-------
TABLE 1 - Continued
ID
19
20
21
22
23
24
25
26
27
28
29
30
31
32
34
35
36
37
38
39
40
41
42
43
— ^— •— ™
Latitude Longitude
21.35454 157.95599
21.35530 157.95567
21.35566 157.95522
21.35630 157.95481
21.35697 157.95446
21.35663 157.95379
21.35637 157.95431
21.35603 157.95398
21.35527 157.95387
21.35777 157.95207
21.35633 157.95236
21.35596 157.95291
21.35529 157.95319
21.35504 157.95322
21.35616 157.95210
21.35449 157.95267
21.35371 157.95180
21.35421 157.95019
21.35520 157.94938
21.35366 157.94909
21.35299 157.94773
21.35236 157.94700
21.35180 157.94597
21.35151 157.94539
DU
DU
DU
DU
BK
Samples & Measurements
S C
s c w
S
S C B U
S
S
S C B U
S
L E
S
S
S C B U
S
S
S
S
S
s
s
s
s
s w
s
s c
Location Description
PHNS, pier B-l, 315 m north of the drydock 1 caisson
PHNS, 23 m offshore from pier B-2, 227 m from the tip of pier B-3
PHNS, pier B-2, 1 80 m from the tip of pier B-3
PHNS, pier B-3, 86 m from the tip of pier B-3
PHNS, 10 m offshore west of the tip of pier B-3
PHNS, midway between the tips of piers B-4 and B-6
PHNS, pier B-4, 52 m from the tip of the pier.
PHNS, 3 1 m offshore from the midpoint of pier B-6
PHNS, shoreline between piers B-6 and B-7
Southeast Loch, 148 m directly out from the tip of pier B-7
PHNS, midway between the tips of piers B-7 and B-l 1
PHNS, 18 m offshore from pier B-8, 140 m from pier B-9
PHNS, 30 m offshore from pier B-8, 60 m from pier B-9
PHNS, 12 m offshore from the center of pier B-9
PHNS, northwest corner of pier B-l 1
PHNS, piers B-12/B-13
NAVSTA, piers B-l 7 /B-l 8
NAVSTA, 27 m northeast of the tip of pier B-21, 19 m from pier B-22
Southeast Loch, 160 m from pier B-22
NAVSTA, 25 m offshore from pier B-22
NAVSTA, 34 m offshore from pier B-23
NAVSTA, 1 5 m offshore from pier B-24-22
NAVSTA, 15 m offshore from piers B-24/B-25
NAVSTA, 22 m offshore from pier B-25
-------
TABLE 1 - Continued
ID
44
45
46
47
48
49
50
51
52
53
54
56
57
59
60
61
63
64
65
66
67
68
69
70
Latitude Longitude
21.35025 157.94336
21.35069 157.94300
21.35145 157.94354
21.35220 157.94393
21.35278 157.94614
21.35155 157.94462
21.35302 157.94318
21.35245 157.94273
21.35276 157.94185
21.35258 157.94047
21.35311 157.94044
21.35314 157.94092
21.35347 157.94169
21.35293 157.94333
21.35293 157.94372
21.35382 157.94390
21.35399 157.94425
21.35410 157.94393
21.35422 157.94553
21.35539 157.94511
21.35620 157.94420
21.35597 157.94335
21.35690 157.94349
21.35683 157.94280
DU
DU
BK
Samples & Measurements
S
S C B U
S
S
S
S
S
S C
S
S C
S C U
S
S C W
S
S
S
S
S
S
S
S
S C W
S
S
Location Description
NAVSTA, 1 5 m offshore from pier B-26
NAVSTA, pierM-1
NAVSTA, 15 m offshore from pier M-2
NAVSTA, 15 m west of the tip of pier M-2
Southeast Loch, 101m offshore from pier B-24
Merry Loch, 66 m offshore from pier B-25
Quarry Loch, 70 m offshore from pier M-3
NAVSTA, pier M-3
NAVSTA, 3 1 m offshore from piers M-3 / M-4
NAVSTA, pier M-4
NAVSTA, 30 m from pier S-l A, 38 m from the east end of Quarry Loch
NAVSTA, 36 m from pier S-l A, 93 m from the east end of Quarry Loch
NAVSTA, 10 m offshore from piers S-l A / S-l B
Quarry Loch, 59 m north-northeast of the tip of pier M-3
Quarry Loch, 64 m north of the tip of pier M-3
NAVSTA, 15 m offshore from the center of pier S-4
NAVSTA, 5 m east-northeast of the tip of pier S-5
NAVSTA, center of pier S-5
Magazine Loch, midline of loch west of pier S-5
Magazine Loch, midline of loch offshore from piers Y-2 / S-21B
Magazine Loch, midline of loch offshore from piers S-2I A / S-21B
NAVSTA, 12 m offshore from pier S-10
Magazine Loch, midline of loch offshore from pier S-l 1
NAVSTA, 28 m offshore from pier S-l I
-------
TABLE 1 - Continued
ID
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
Latitude Longitude
21.35766 157.94204
21.35819 157.94137
21.35881 157.94095
21.35921 157.94110
21.35875 157.94290
21.35812 157.94339
21.35678 157.94433
21.35622 157.94497
21.35555 157.94608
21.35575 157.94749
21.35673 157.94852
21.35671 157.94929
21.35780 157.94882
21.35914 157.94692
21.36030 157.94727
21.36089 157.94668
21.36368 157.94122
21.36444 157.94365
21.36483 157.94237
21.35707 157.96070
21.37321 157.94065
21.37230 157.95860
21.36911 157.95423
21.37169 157.95945
DU
DU
DU
BK
BK
Samples & Measurements
S
s c u
S
s c u
S C B W U
S C
s
s
s
s c u
s
s
s
S C B U
s
s c u
L E
S
S C B U
S
S W
S C B U
L E
S
Location Description
NAVSTA, 30 m offshore from pier S-12
NAVSTA, 12 m offshore from pier S-13
NAVSTA, between piers S-14 and S-15, 29 m from the base of the piers
NAVSTA, base of pier S- 16
NAVSTA, 10 m offshore from piers S-19 / S-20
NAVSTA, 15 m offshore from pier S-20
NAVSTA, 56 m offshore from pier S-21 A
NAVSTA, 56 m offshore from pier S-21 B
NAVSTA, 26 m offshore from wharf Y-2
NAVSTA, 26 m offshore from wharf Y-3A
NAVSTA, 38 m offshore from wharf Y-3B
Southeast Loch, 100 m offshore from wharf Y-3B
FISC, Between piers Y-3B and K-3
FISC, piers K-3 / K-5
FISC, tip of piers K-7/K-8
FISC, pier K-8
FISC, shoreline 30 m southwest of pier K-12
FISC, 15 m offshore from pier H-3
FISC, piers H-3 / H-4
Ford Island, pier F-l
Aiea Bay, 260 m south of McGrew Point, 191m from navigation light #2.
Ford Island, pier F-l 3
Ford Island, shoreline north of golf course.
Ford Island, 14 m offshore from pier F-l 3
-------
TABLE 1 - Continued
ID
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
Latitude Longitude
21.37071 157.96081
21.38360 157.95886
21.36521 157.97238
21.35989 157.97538
21.34131 157.97168
21.33459 157.97162
21.35092 157.97993
21.34898 157.98921
21.34878 157.98992
21.35363 157.99711
21.35335 157.99814
21.35232 158.00028
21.35683 158.00925
21.38577 157.98852
21.37003 157.97057
21.37112 157.97167
21.35058 157.95372
21.38247 157.92818
21.38807 157.97083
21.38887 158.00375
21.36709 157.94002
21.36476 157.94972
21.34667 157.96449
21.34842 157.96415
DU
DU
DU
DU
DU
DU
DU
DU
BK
BK
BK
BK
BK
BK
BK
Samples & Measurements
S
s w
S
L E
S
S
L E
S W
s
s
s
s
w u
s w
S C B U
L E
D
D
D
D
E
E
E
E
Location Description
Ford Island, 17 m offshore from pier F-12
East Loch, 216m south of the breakwater east of Waiau Bank
North Channel, 225 m offshore from the degaussing pier on Beckoning Point
Waipio Peninsula, shoreline about 600 m south of Beckoning Point
Main Channel, 83 m south of the "W" marker on Waipio Point
Main Channel, 110m offshore from Iroquois Point
Waipio Peninsula, shoreline at boat landing across from Kekaa Point
NAVMAG, 38m offshore from pier W-5
NAVMAG, 15 m offshore from pier W-4
NAVMAG, 15 m offshore from pier W-l
NAVMAG, 32 m offshore from pier W-2
NAVMAG, 15 m offshore from pier W-3
West Loch, offshore west of Nichols Point
Middle Loch, 350 m offshore from the northern tip of the loch
Pearl City Peninsula, pier V-2 d
Pearl City Peninsula, shoreline between piers V-l and V-2.
PHNS, water tap in Bldg. 167
Aiea, Aiea District Park water tap e
Pearl City, Lehua Park water tap e
Waipahu, Hans L'Orange Park water tap e
Bowfin Park waterfront
Arizona Memorial, onboard a boat tied to the memorial
PHNS, CIA fence south of drydock 4 near light pole B-73
PHNS, Intersection of Ford Island Way and Third Street
-------
TABLE 1 - Continued
ID
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
Latitude Longitude
21.34741 157.96573
21.34771 157.96708
21.35089 157.96505
21.35068 157.96398
21.35055 157.96298
21.34993 157.96247
21.34798 157.96081
21.34796 157.95845
21.34873 157.95396
21.34957 157.95278
21.35204 157.95137
21.35317 157.94966
21.35243 157.94020
21.35341 157.93796
21.35666 157.93663
21.35790 157.93901
21.35881 157.93920
21.36069 157.94193
21.36549 157.95130
21.36804 157.95066
21.36035 157.95908
N/A N/A
N/A N/A
•^^^•M
DU
^^^^^m
BK
Samples & Measurements
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Location Description
PHNS, CIA fence near the northwest corner of Bldg 387
PHNS, northeast side of Bldg. T-15A
PHNS, fence surrounding Station A-8 near landing C
PHNS, north side of Bldg 174
PHNS, CIA fence near light pole B-16 on Ave. G
PHNS, CIA fence west of Bldg 340
PHNS, CIA fence corner west of Bldg. 1443
PHNS, CIA fence near the intersection of Ave. G and Central Ave.
PHNS, At light pole D54 on Central Ave., north of Bldg. 206
PHNS, near the south corner of Bldg. 1 67
NAVSTA, CIA fence south of Bldg. 72
NAVSTA, CIA fence near the east corner of Bldg. 68
NAVSTA, near the north wall of Bldg. 148
NAVSTA, between Bldg. 1535 and Bldg. 1407
NAVSTA, fence corner north of Bldg. 1335
NAVSTA, fuel-farm fence directly across North Rd. from the tennis court
NAVSTA, fence at the entrance to the fuel farm
NAVSTA, corner fencepost northwest of Bldg. 644
Ford Island, shoreline near USS Arizona Memorial
Ford Island, base of Admirals' Pier
Ford Island, old ferry landing
Placeholder for quality-assurance sample r
Placeholder for quality-assurance sample f
-------
TABLE 1 - Continued
ID
142
143
145
146
147
148
Latitude Longitude
21.35627 157.95277
21.35739 158.00904
21.35371 157.94322
21.35183 157.96445
21.35676 157.94437
21.35678 157.94285
DU
DU
DU
BK
BK
Samples & Measurements
S
S
S C U
S C W U
C
C
Location Description
PHNS, pier B-7
West Loch, offshore west of Nichols Point
NAVSTA, west tip of pier S-l
PHNS, northwest corner of Landing C
NAVSTA, 56 m offshore from pier S-21 A
NAVSTA, 28 m offshore from pier S-l I
" Location ID numbers are not sequential. Location ID numbers may be missing from the list due to changes in sampling location.
b Latitude and longitude are given in decimal degrees. Positions are accurate to ten meters for most locations. See text for details.
c Sample and measurement type codes are explained in Table 2.
d Location 109 was a duplicate location for biota only.
e Locations 112, 113, and 114 are accurate to within 300 meters.
f Locations 140 and 141 are fictitious. Samples labeled with these locations were collected at location 107 (water) or 91 (sediment) and spiked with
radioactivity as a quality-control test.
TABLE 2
Sample and Measurement Codes
Code Sample or Measurement Type
S Harbor Sediment
L Shoreline Sediment
C Sediment Core
B Biota
Code
W
D
E
U
Sample or Measurement Type
Harbor Surface Water
Drinking Water
External Exposure Rate
Underwater Gamma-Ray Measurement
-------
Scale (meters)
A 500 0 500 1000 1500
Fig. 2.1. Sample and measurement locations in Pearl Harbor and surrounding areas. See Figs. 2.2 and 2.3 for details in the shipyard
and naval station areas.
-------
28
142
to
146
Scale (meters)
100 o 100 200 300
Fig. 2.2. Sample and measurement locations in the Pearl Harbor Naval Shipyard.
-------
89
88
86
85
83
Scale (meters)
0 100 200 300
Fig. 2.3. Sample and measurement locations in the Pearl Harbor Naval Station, Submarine
Base, and Fleet Industrial Supply Center.
24
-------
3.0 RESULTS AND DISCUSSION
The radioanalytical results and quality assurance/quality control (QA/QC) information for all
samples were reported in standard NAREL data packages. The radioanalytical results are
summarized in Appendix A. Unless otherwise specified, the uncertainty in all radioanalytical
results is two standard deviations. The QA/QC results for all analyses were within acceptable
limits as specified in the Quality Assurance Project Plan (EPA98a).
Some of the radionuclide results in Appendix A 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.
In some cases, the results of gamma-spectrometry analyses are reported as "not detected" (ND).
This means that in all likelihood, the radionuclide in question is either absent from the sample
or is present at a concentration below the minimum detectable concentration (MDC). Since
cobalt-60 was a principal contaminant of concern for this study, non-detects for cobalt-60 are
reported in Appendix A as "less than" the MDC for cobalt-60 in each particular sample. The
MDC is a statistical indicator which can vary from sample to sample due to differences in the
natural radioactive content of the sample or differences in the analytical instrument used. If a
large number of samples containing cobalt-60 at concentrations near the MDC were analyzed,
the radioactivity would be detected in about 95% of the samples.
3.1 Water Samples
3.1.1 Surface Water
Fourteen surface water samples were collected, including two duplicates and three background
samples. Gamma-spectrometry analysis found only naturally-occurring radioactivity. No
cobalt-60 was found at levels above the MDC's, which ranged from 2.4 to 3.4 pCi/L.
Tritium levels in surface water-samples collected in the study site ranged from -81 to 8 pCi/L,
compared to background concentrations of -56 to 2 pCi/L. All results had uncertainties of
around 80 pCi/L. The study samples and background samples show comparable levels of
radioactivity.
Gross alpha radioactivity ranged from -45 to 196 pCi/L in the study site and from 34 to 184
pCi/L in the background samples. All uncertainties were of order 100 to 200 pCi/L. The study
samples and background samples show comparable levels of radioactivity.
Gross beta radioactivity in the surface-water samples ranged from 280 to 430 pCi/L, compared
to 244 to 499 pCi/L for the background samples. Uncertainties were of order 100 pCi/L. These
results are consistent with the potassium-40 concentrations, as measured by gamma
25
-------
spectrometry, of around 300 pCi/L. The study samples and background samples show
comparable levels of radioactivity.
3.1.2 Drinking Water
Six tap-water samples were collected in the areas around Pearl Harbor, including two duplicates
and a background. Gamma-spectrometry analyses found only naturally-occurring radioactivity.
No cobalt-60 was found at levels above the MDC's, which ranged from 2.7 to 2.8 pCi/L.
Tritium levels in drinking-water samples collected in the study site ranged from -45 to -18 pCi/L,
compared to background concentrations of-52 to -18 pCi/L. All results had uncertainties of
around 80 pCi/L. The study samples and background samples show comparable levels of
radioactivity. For comparison, the National Primary Drinking Water Regulations (40CFR141)
limit average tritium activity in public water supplies to 20,000 pCi/L.
Gross alpha radioactivity ranged from -0.4 to 1.1 pCi/L in the study samples and from -1.0 to -
0.1 pCi/L in the background samples. Uncertainties were approximately 1 pCi/L. The study
samples and background samples show comparable levels of radioactivity. The primary drinking
water maximum contaminant level for gross alpha activity, not including uranium and radon, is
15pCi/L(EPA76).
Gross beta radioactivity in these samples ranged from 1.9 to 3.7 pCi/L in the study site and 2.7
to 2.9 pCi/L in the backgrounds. Uncertainties ranged from 0.6 to 1.4 pCi/L. The study samples
and background samples show comparable levels of radioactivity.
3.2 Sediment and Sediment Core Samples
3.2.1 Harbor-Bottom and Intertidal Shoreline Sediment
Gamma-ray spectrometry analyses of sediment samples indicated naturally-occurring
radioactivity from the uranium, thorium, and actinium decay chains and from the cosmogenic
radionuclide beryllium-7 and the primordial radionuclide potassium-40 at typical levels in many
of the samples. Cesium-137, a product of fallout from atmospheric weapons tests and from the
Chernobyl reactor accident, was also found at concentrations consistent with expected levels
from fallout.
Cobalt-60 was found in many harbor-bottom samples collected in or near Southeast Loch at
concentrations of up to 0.147 ± 0.007 pCi/g. No cobalt-60 was detected in the harbor-bottom
background samples or in any shoreline sediment sample. The MDC's for cobalt-60 in these
samples were all less than 0.025 pCi/g. Detailed analysis and evaluation of the cobalt-60
contamination is presented in section 3.5 of this report.
26
-------
Results of the gross alpha and gross beta radioactivity measurements are listed in Appendix A,
Table A.9. Gross alpha activity in harbor-bottom sediment samples ranged from 1.4 to 20.7
pCi/g, compared to 0.5 to 8.9 pCi/g for harbor bottom background samples. Uncertainties (two-
sigma) in these measurements were typically 5 to 7 pCi/g and MDC's ranged from 6 to 14 pCi/g.
Samples collected in the shipyard appear to show slightly higher gross-alpha concentrations than
those from the background areas.
The gross beta measurements of harbor-bottom sediments showed concentrations of 3.5 to 14.8
pCi/g in study samples and 4.3 to 9.2 pCi/g in background samples, with typical uncertainties
of 2 to 4 pCi/g. As with the gross alpha radioactivity, samples from the shipyard appear to show
slightly elevated levels of gross beta activity.
In shoreline samples, gross alpha measurements ranged from -0.9 to 3.4 pCi/g in study samples
and from 0.7 to 5.8 pCi/g in background samples, with uncertainties of around 4 pCi/g. This
indicates there is no significant difference in gross alpha concentrations in shoreline sediments
from study and background areas.
Gross beta activities in shoreline samples ranged from 1.4 to 9.0 pCi/g (study samples) and from
1.5 to 2.8 pCi/g (background samples). Typical uncertainties were between 2 and 3 pCi/g.
Samples collected along the shoreline of the shipyard appear to contain more gross beta
radioactivity than those collected in the background areas.
The apparent elevated levels of gross alpha and gross beta radioactivity in samples collected near
the shipyard are discussed in section 3.6 of this report.
3.2.2 Sediment Core Samples
Thirty-three sediment core samples of lengths from 16 to 54 cm were collected. Each was
divided into 5 to 10 cm slices which were individually analyzed for gamma-ray emitting
radionuclides and for gross alpha and gross beta radioactivity.
The results of the gamma-spectrometry analyses are tabulated in Appendix A, Tables A. 12 -
A. 14. All slices were found to contain natural radioactivity and radioactivity attributable to
fallout at typical concentrations. Levels of cobalt-60 of up to 0.156 pCi/g were measured in
many of the slices taken from cores collected in or near Southeast Loch. No cobalt-60 was found
in cores taken elsewhere in Pearl Harbor. The MDC's for cobalt-60 ranged from about 0.03 to
0.10 pCi/g. Detailed discussion of cobalt-60 results are presented in section 3.5 of this report.
Gross alpha and gross beta results for core slices are listed in Appendix A, Table A. 15. In order
to compare alpha and beta concentrations between cores, the results for all slices in each core
were averaged. This was a simple average in which all slices were equally weighted. These
average concentrations are shown in Table A. 16 of Appendix A.
27
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Average gross alpha concentrations ranged from 3.0 ± 3.7 to 14.2 ± 7.6 pCi/g in study samples,
compared to 5.6 ± 4.9 pCi/g in the background sample. Average gross beta concentrations
ranged from 5.9 ± 2.8 to 11.3 ± 3.8 in study samples, compared to 6.8 ± 1.4 in the background
sample. Core samples collected near the shipyard (locations 1, 7, 10, 16, 19, 20, and 22) appear
to have levels of beta activity slightly higher than those collected elsewhere. A discussion of this
can be found in section 3.6 of this report.
3.3 Biota Samples
Fourteen biota samples were collected, including two duplicates and one background sample.
All were a species of sponge. Concentrations of gamma-ray emitting radionuclides in these
samples are shown in Appendix A, Table A. 17. Only naturally-occurring radioactivity and
radioactivity attributable to fallout from weapons tests or the Chernobyl accident were detected.
No cobalt-60 was found in any sample above the MDC. MDC's ranged from 0.003 to 0.008
pCi/g-wet.
Gross alpha and gross beta activities for these samples are listed in Appendix A, Table A. 18.
Gross alpha radioactivity in the biota samples ranged from -0.5 to 10.3 pCi/g-ash in the study site
and from 1.4 to 4.4 pCi/g-ash in the background sample and background duplicate sample. All
uncertainties were of around 4 to 6 pCi/g-ash. Sample PHNC 092-BSP had 10.3 ± 6.1 pCi/g-ash
content, whereas all others had less than 5 pCi/g-ash. However, the difference is not statistically
significant due to the large uncertainty. All other study samples had reported gross alpha
activities comparable to the background and background-duplicate sample.
Gross beta radioactivity ranged from 2.8 to 7.5 pCi/g-ash, compared to3.8 to 5.1 pCi/g-ash for
the background and background-duplicate samples. Uncertainties were around 2 to 3 pCi/g-ash
for all samples. The study samples and background samples therefore show comparable levels
of radioactivity.
3.4 External Radiation Measurements
3.4.1 Underwater Probe Measurements
Measurements of gamma-ray activity in harbor water and sediment were made at twenty sites
using an encapsulated 6" x 6" Nal detector which was lowered to about 6" above the harbor
floor. Spectral data were collected for at least ten minutes at each site and were immediately
analyzed for evidence of cobalt-60 or other radioactive contamination. The purpose of these
measurements was to immediately identify areas of the harbor containing high levels of
contamination. Additional sampling would be performed in these areas where the underwater
probe detected high levels of contamination. Underwater exposure levels were similar to those
at background locations.
28
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3.4.2 Exposure-Rate Measurements
With two exceptions, measured offshore exposure rates were between 1 and 3 |o.R/hr. An
exposure rate of 50 uR/hr was measured at location 5, and 15 uR/hr was measured at location
9. These locations are just offshore of the building 1274 compound, described in (PHNS97) as
a radiological work and liquid processing facility and radioactive material storage area.
Sediment samples from these locations were found to have radioactive levels typical for the
shipyard area. The elevated exposure rates are therefore attributed to radioactive materials stored
onshore.
Onshore exposure rates are expected to be higher than offshore readings due to the natural
radioactive content of soil and building materials. Onshore exposure rates, as measured by
pressurized ionization chamber, are listed in Appendix A, Table A. 19. With the exception of
location 8, onshore exposure rates were between 4.5 and 6.6 (J.R/hr. Location 8 is near the
building 1274 storage compound, and the measured exposure rate there was 13.5 uR/hr.
The onshore and offshore exposure rates for locations accessible to the general public showed
no difference from the exposure rates due to natural background radioactivity.
3.5 Cobalt-60 in Sediment
Cobalt-60 is an activated product of wear and corrosion of metallic surfaces in contact with
reactor cooling water. Its presence in harbor sediment is an indication of past releases of
radioactivity into the harbor. These past releases occurred prior to 1972 and are well
documented in the Shipyard's Historical Radiological Assessment (PHNSF97) as well as
previous radiological surveys (Ca66, Ca72, Ca87).
3.5.1 Cobalt-60 Contamination Levels
The sediment and core samples found to contain cobalt-60 in this study were all taken from
within or close to Southeast Loch. Figure 3.1 is a map of cobalt-60 surface sediment
concentrations in Southeast Loch. Cobalt-60 is concentrated in three areas: Quarry Loch,
Magazine Loch, and the B-7 to B-ll repair basin. Lower levels are found throughout the
remainder of Southeast Loch and along the "10-10" pier (B-l to B-3.) This matches the results
of the previous EPA surveys.
The vertical distribution of cobalt-60 as measured by core samples indicates a relatively constant
level of contamination down to at least 50 cm. One would expect a nearly constant vertical
distribution from historic releases due to mechanical mixing and diffusion of contamination in
the sediment. A recent release would tend to show a pattern of excess contamination in the
upper sediment. The measured pattern is consistent with the assumption that all the
contamination is due to the known releases prior to 1966.
29
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Qualitative and quantitative evaluations of the measured cobalt-60 levels in this study and in the
1985 survey (Ca87) were performed to test for evidence of a release of cobalt-60 since 1985.
The evaluations, which are described in Appendix B, showed no evidence of a recent release of
cobalt-60.
3.5.2 Nickel-63 Inferred Contamination Levels
Nickel-63 is a radionuclide produced in the same process in nuclear reactors as cobalt-60, but
at much lower levels. Nickel-63 decays less rapidly than cobalt-60 since its half life is 100.1
years compared to 5.3 years for cobalt-60. Because nickel-63 emits no gamma rays and has a
very low energy beta decay, it cannot be measured via the methods used at the NAREL.
However, based on data from other sites (Sh93, Ab96), nickel-63 levels at Pearl Harbor sediment
are expected to be similar to cobalt-60 levels in 1998, i.e. less than about 1 pCi/g. While the
cobalt-60 contamination will decay to undetectable levels within two decades, in the absence of
significant sediment mixing the nickel-63 will remain near present levels for a century or more.
3.6 Gross Alpha and Beta Radioactivity in Sediment
Measured levels of gross alpha and gross beta concentrations in harbor sediment, sediment cores,
and shoreline sediment samples collected along the northern shore of the shipyard are up to twice
as high as concentrations in corresponding samples from elsewhere in Pearl Harbor. In most
cases, the measured differences are not much larger than the measurement uncertainties. In
comparison to the methods employed to determine radionuclide-specific activities, the method
used to determine gross alpha and gross beta activity has the potential for greater analytical bias,
especially in solid samples such as sediments. This potential analytical error is not included in
the two-sigma uncertainty reported in the tables of Appendix A. On the other hand, the existence
of this trend in so many sediment, core, and shoreline samples warrants investigation.
A number of possible sources for the difference were checked, including systematic differences
in sample collection or analysis, differences in natural radioactivity or non-nuclear operations
which affect levels of natural radioactivity, statistical fluctuations due to measurement
uncertainties, and releases of radioactivity from operations involving nuclear-powered warships.
To investigate these possibilities, additional analyses were performed on some samples. The
results of these analyses are tabulated in Appendix A, Tables A. 10 and A. 11. These analytical
results were used to evaluate the various possible explanations. Details of this evaluation are
given in Appendix C.
The evaluation described in Appendix C does not support any of the possible explanations listed
above. In particular, a release of radioactivity from nuclear-powered warship operations is ruled
out. A possible explanation not investigated is a difference in the physical or chemical properties
30
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of the sediment (other than a difference in radioactivity) which systematically affected the
analyses.
3.7 Human Health Risks
Levels of Co-60 and Ni-63 have been detected or are inferred to exist in harbor bottom sediment.
However, their presence in these sediments poses no risk to the public. The current levels of
these radionuclides is quite low, and the fact that they exist only in harbor bottom sediment
effectively prevents public exposure.
Since access to the onshore and offshore areas immediately surrounding the building 1274
compound (radiological work facility and radioactive material storage area) is restricted, the
elevated exposure levels in those areas do not pose a risk to public health.
31
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U)
K)
Co-60 Concentration
in Harbor Sediment
T Not Detected
$ < 0.025 pCi/g
% 0.025 - 0.05 pCi/g
* > 0.05 pCi/g
N
A
Scale (meters)
0 100 200 300 400
Fig. 3.1. Cobalt-60 concentrations in harbor sediment. Samples collected outside of the area shown had undetectable levels of
cobalt-60.
-------
4.0 QUALITY ASSURANCE / QUALITY CONTROL
The Quality Management Plan (QMP) (EPA96) 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 (EPA98a) was
prepared in accordance with the requirements described in EPA Requirements for Quality
Assurance Project Plans for Environmental Data Operations (EPA94b).
Quality assurance is equally important in the sample collection process. Sampling equipment
was in good working order and field measurement equipment was calibrated and properly
maintained.
"Field duplicate" samples were collected to assess the representativeness of the samples
collected. For sediment core samples, these were collocated duplicates. For other samples, these
were composited split samples. Field duplicates were collected for 21 samples. Differences in
measured levels of radioactivity in pairs of duplicate samples were found to be within acceptable
limits.
Two double-blind surface water samples were collected for quality assurance purposes. These
were samples to which tritium was added without the knowledge of the laboratory analysts. The
samples were collected at background locations in Pearl Harbor and labeled prior to shipment
to the NAREL so as to be indiscernible from other samples. For both samples, the reported
concentration of tritium was within acceptable limits.
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 process. 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. Detailed results are included in the NAREL Data Packages and all radioanalytical
sample results were in accordance with the QAPP as certified by the NAREL Quality Assurance
Coordinator and the Chief of the Monitoring and Analytical Services Branch.
Since technetium-99 analysis is not routinely performed at the NAREL, portions of five sediment
samples were delivered to the Sanford Cohen and Associates Southeastern Environmental
Laboratory for this analysis. Prior to analysis, the standard operating procedures and quality
assurance plan for the contract laboratory were reviewed by the NAREL quality assurance staff
for compliance with NAREL quality assurance policies. Laboratory spike, duplicate, and blank
samples were analyzed. A double-blind sample was also included. This was a portion of a
sample collected at a background location to which a known amount of technetium-99 was added
without the knowledge of the commercial laboratory in order to evaluate the quality of the
33
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analyses. The difference between the reported concentration and the known concentration of
technetium-99 in the double-blind sample was within acceptable limits. Detailed results are
included in the contract data package. (SCAOO)
It is NAREL policy to participate in many intralaboratory comparisons of radioactivity
measurements and interlaboratory 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 Standards 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 at the time of this
survey was with EPA's ORD-ESD Laboratory in Las Vegas, which supplied NAREL with thirty
cross-check samples a year in water, milk, and food. The ORD program was discontinued in
December 1998. NAREL now also participates in QA comparisons with the DOE Radiological
and Environmental Science Laboratory in Idaho Falls, ID and the Department of Energy (DOE)
Environmental Measurements Laboratory (EML) in New York, NY. Soil, vegetation, water, and
air filters are received through these intercomparison programs.
34
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5.0 CONCLUSIONS
The radiological survey of Pearl Harbor provides the basis for the following conclusions:
1. Cobalt-60 is present in harbor-bottom sediment in and around Southeast Loch at levels
of up to 0.156 pCi/g. This contamination is distributed in the sediment to at least a depth
of 50 cm. Measured levels of cobalt-60 contamination are consistent with expected
concentrations from known historical releases. Based on statistical analyses, the
preponderance of evidence does not indicate a release of cobalt-60 in Pearl Harbor after
1985.
2. Nickel-63 is likely present in harbor-bottom sediment in and around Southeast Loch at
levels no higher than about 1 pCi/g. This conclusion is based on the measured cobalt-60
levels, the known processes by which cobalt-60 and nickel-63 are produced in nuclear
reactors, and ratiometric data from other sites. Natural decay of nickel-63 releases a very
low-energy beta particle. Because of this, the nickel-63 present in the harbor sediment
does not pose a risk to the public health or the environment.
3. All other radionuclides identified in the media collected in this survey are typically found
in the environment due to naturally-occurring radioactivity or fallout from atmospheric
weapons testing and the Chernobyl reactor accident. The concentrations of these
radionuclides are consistent with expected levels from fallout.
4. Gamma-ray exposure rates in and around the PHNC are within the range of natural
background, with the exception of the areas surrounding the radiological work and
radioactive materials storage facility.
5. The current practice of restricting the release of radioactivity into the harbor to the
minimum practical has been effective and should allow the cobalt-60 radioactivity
remaining in the harbor sediment to continue to decrease.
6. Based on this radiological survey, practices regarding nuclear-powered warship
operations at the Pearl Harbor Naval Complex have resulted in no radioactive releases
which will cause significant population exposure or impact on the environment.
35
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6.0 REFERENCES
Ab96 Abelquist, E.W., "Designation Survey Addendum Report Combustion
Engineering Site Windsor, Connecticut" Oak Ridge Institute for Science and
Education, July 1996.
Ca66 Cahill, D.F. etal., "Radiological Survey of Pearl Harbor, Hawaii, and Vicinity,
April 1966" Department of Health, Education, and Welfare, U.S. Public Health
Service, Southeastern Radiological Health Laboratory, April 1966.
Ca72 Cahill, D.F. et al, "Radiological Surveys of Pearl Harbor, Hawaii, and
Environs, 1966-1968" Radiation Data and Reports 13, 323, U.S. Environmental
Protection Agency, June 1972.
Ca87 Callis, R.S., "Radiological Survey of the Pearl Harbor Naval Shipyard and
Environs, Honolulu, Hawaii" EPA 520/5-87-010, U.S. Environmental Protection
Agency, June 1987.
EPA76 U.S. Environmental Protection Agency, "National Interim Primary Drinking
Water Regulations" EPA-570/9-76-003. Office of Water Supply, 1976.
EPA94b U.S. Environmental Protection Agency, "EPA Requirements for Quality
Assurance Project Plans for Environmental Data Operations (draft interim
final) " EPA QA/R-5, August 1994.
EPA96 U.S. Environmental Protection Agency, "National Air and Radiation
Environmental Laboratory Quality Management Plan" National Air and
Radiation Environmental Laboratory, October 18, 1996.
EPA97 U.S. Environmental Protection Agency, "Multi-Agency Radiation Survey and Site
Investigation Manual (MARSS1M)" EPA 402-R-97-016, U.S. Environmental
Protection Agency, December 1997.
EPA98a U.S. Environmental Protection Agency, "Draft Quality Assurance Project Plan
for U.S. Navy Environmental Studies " National Air and Radiation Environmental
Laboratory, March 17, 1998.
EPA98b U.S. Environmental Protection Agency, "Work Plan for Environmental Survey
at the Pearl Harbor Naval Complex " National Air and Radiation Environmental
Laboratory, March 27, 1998.
37
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Gr92
Ma97
PHNS97
SCAOO
Sh93
Grovhoug, J.G., "Evaluation of Sediment Contamination in Pearl Harbor"
Naval Command, Control and Ocean Surveillance Center Technical Report 1502,
June 1992.
Mangeno, J.J., Steele, J.M., and Bernhardt, K.C., "Environmental Monitoring
and Disposal of Radioactive Wastes from U.S. Naval Nuclear-Powered Ships and
their Support Facilities 1996" NT-97-1, Naval Nuclear Propulsion, Department
of the Navy, March 1997.
Radiological Control Office, Pearl Harbor Naval Shipyard, "Historical
Radiological Assessment, Pearl Harbor Naval Complex, Vol. I, Naval Nuclear
Propulsion Program 1959 -1993" Pearl Harbor Naval Shipyard, January 1997.
S. Cohen & Associates, Southeastern Environmental Laboratory, Radioanalytical
Results Laboratory Report: Identification Number 1892, May 2000.
Sheldon, R.B. and Michne, J.D., "Deep Sea Radiological Environmental
Monitoring Conducted at the Site of the Nuclear-Powered Submarine Thresher
Sinking" KAPL-4748, Knolls Atomic Power Laboratory, Schenectady, New
York, October 1993.
38
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APPENDIX A
Radioanalytical and Field Measurement Results
for
Pearl Harbor Naval Complex Samples
June 2001
-------
TABLE A.1
Gamma Spectrometry Results for Surface Water Samples
Sample ID
NARELID
Activity (pCi/L ±
60Co
40K
2a counting error)
214pb
208TI
STUDY SAMPLES
PHNC013-W
PHNC 020-W
PHNC041-W
PHNC 041-W-DU
PHNC 057-W
PHNC 068-W
PHNC 075-W
PHNC 096-W
PHNC 102-W
PHNC 146-W
BACKGROUND
PHNC 091-W-BK
PHNC 107-W-BK
98.02145
98.02146
98.02150
98.02149
98.02226
98.02148
98.02147
98.02299
98.02298
98.02294
<3.4
<2.8
<2.8
<2.9
<3.2
<2.7
<2.4
<3.0
<3.2
<3.2
SAMPLES
98.02339
98.02296
PHNC 107-W-DU-BK 98.02293
PHNC 108-W-BK
98.02297
<3.0
<2.7
<2.9
<3.0
322 ± 24
336 ±24
348 ± 24
341 ± 24
339 ±23
329 ± 24
314±24
332 ±24
299 ± 22
336±23
358 ±24
300 ±23
279 ± 22
340 ± 24
ND
ND
ND
ND
6.1 ±3.7
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.5 ± 1.7
ND
ND
ND
ND
ND
ND
ND
ND
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "< Xv
indicates the radionuclide was not detected and X was the minimum detectable
concentration for the radionuclide in this sample.
41
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TABLE A.2
Tritium Results for Surface Water Samples
Sample ID
NARELID
Tritium Activity
(pCi/L ± 2c7 counting error)
STUDY SAMPLES
PHNC 013-W
PHNC 020-W
PHNC041-W
PHNC 041-W-DU
PHNC 057-W
PHNC 068-W
PHNC 075-W
PHNC 096-W
PHNC 102-W
PHNC 146-W
98.02145
98.02146
98.02150
98.02149
98.02226
98.02148
98.02147
98.02299
98.02298
98.02294
-23 ± 72
6 ±73
-8 ±76
8 ±78
-76 ± 78
-26 ± 76
-36 ± 79
-81 ±77
-8 ±75
-16 ±75
BACKGROUND SAMPLES
PHNC 091-W-BK
PHNC 107-W-BK
PHNC 107-W-DU-BK
PHNC 108-W-BK
98.02339
98.02296
98.02293
98.02297
-50 ± 79
2±81
-56 ± 74
-22 ± 74
42
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TABLE A.3
Gross Alpha and Gross Beta Activity Results for Surface Water Samples
STUDY SAMPLES
Sample ID
PHNC013-W
PHNC 020-W
PHNC041-W
PHNC041-W-DU
PHNC 057-W
PHNC 068-W
PHNC 075-W
PHNC 096-W
PHNC 102-W
PHNC 146- W
NAREL ID
98.02145
98.02146
98.02150
98.02149
98.02226
98.02148
98.02147
98.02299
98.02298
98.02294
Activity
(pCi/L ± 2a counting error)
Gross Alpha
37 ± 116
-18 ± 111
0 ± 102
-39 ± 75
58 ± 184
45 ± 110
172 ± 225
-45 ± 108
-34 ± 78
196 ± 219
Gross Beta
389 ± 106
430 ± 106
327 ± 101
385 ± 99
378 ± 130
312 ± 94
389 ± 106
389 ± 106
280 ± 92
330 ± 117
BACKGROUND SAMPLES
PHNC 091-W-BK
PHNC 107-W-BK
PHNC 107-W-DU-BK
PHNC 108-W-BK
98.02339
98.02296
98.02293
98.02297
34 ± 117
114 ± 176
50 ± 213
184 ± 203
358 ± 101
244 ± 113
271 ± 117
499 ± 119
43
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TABLE A.4
Gamma Spectrometry Results for Drinking Water Samples
Sample ID
NARELID
Activity (pCi/L
60Co
±2a
40K
counting error)
lOS-pl
STUDY SAMPLES
PHNC111-D
PHNC112-D
PHNC112-D-DU
PHNC 11 3-D
98.02144
98.02225
98.02221
98.02222
<2.7
<2.7 10
<2.8
<2.8
ND
ND
5 ±13.3 ND
ND
ND
ND
ND
BACKGROUND SAMPLES
PHNC 114-D-BK
PHNC 114-D-BK-DU
98.02224
98.02223
<2.7
<2.7
ND
ND
ND
1.2±1.3
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
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TABLE A.6
Gross Alpha and Gross Beta Activity Results for Drinking Water Samples
STUDY SAMPLES
Sample ID
PHNC111-D
PHNC 112-D
PHNC112-D-DU
PHNC 11 3-D
NARELID
98.
98.
98.
98.
02144
02225
02221
02222
(pCi/L±
Activity
2a counting error)
Gross Alpha
1
1
-0
-0
.1
.7
.2
.4
±
±
±
±
1
1
1
0
.3
.6
.1
.8
Gross Beta
2
3
1
2
3
7
9
7
±
±
±
±
1.0
1.4
1.0
1.1
BACKGROUND SAMPLES
PHNC114-D-BK
PHNC114-D-BK-DU
98.
98.
02224
02223
-0
-1
.1
.0
±
±
1
0
.1
.8
2
2
7
9
±
±
1.1
0.6
45
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TABLE A.7
Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples
Uranium and Actinium Decay Chains
Sample ID
NAREL ID
Activity (pCi/g
234Th
234mpa
226Ra
214pb
± 2cr counting error)
2!4j
.:
235u
231pa
223Ra
HARBOR SEDIMENT - STUDY SAMPLES
PHNC001-S
PHNC 005-S
PHNC 007-S
PHNC 009-S
PHNC010-S
PHNC011-S
PHNC 012-S
PHNC 012-S-DU
PHNC013-S
PHNC 014-S
PHNC015-S
PHNC016-S
PHNC017-S
PHNC018-S
PHNC019-S
98.02280
98.02342
98
02174
98.02343
98.02175
98.02155
98.02151
98
98
98
98
02152
02154
02153
02156
98.02173
98
98
98
02159
02167
02176
0.54 ±0.23
0.84 ±0.15
0.92 ±0.15
0.71 ±0.20
0.55 ± 0.20
ND
0.91 ±0.14
0.65 ±0.16
0.71 ±0.20
0.93 ±0.21
0.91 ±0.15
0.69 ±0.17
0.87 ±0.1 5
0.90 ±0.16
0.67 ±0.1 8
1.17±1.08
ND
ND
1.31 ±0.85
2.22 ± 0.90
1.63 ±0.88
ND
2.16 ±0.71
1.78 ±0.91
1.77± 1.18
2.62 ± 1.06
ND
0.88 ± 1.19
ND
1.29 ±0.75
ND
1.15 ±0.30
1.29 ±0.30
1.14 ±0.25
1.58 ±0.26
1.58 ±0.24
1.41 ±0.21
1.30 ±0.20
1.34 ±0.25
ND
3.21 ±0.25
1.11 ±0.36
1.26 ±0.22
1.50 ±0.35
1.26 ±0.23
0.40 ±0.02
0.21 ±0.02
0.17 ±0.02
0.27 ± 0.02
0.55 ± 0.03
0.45 ± 0.02
0.24 ± 0.02
0.32 ± 0.02
0.22 ± 0.02
0.20 ±0.02
1.47 ±0.03
0.17 ±0.03
0.21 ±0.02
0.21 ± 0.02
0.19 ±0.02
0.35 ±
0.19±
0.14±
0.23 ±
0.46 ±
0.44 ±
0.21 ±
0.29 ±
0.20 ±
0.20 ±
1.35 ±
0.19±
0.20 ±
0.16±
0.19 ±
0.03
0.02
0.02
0.02
0.03
0.02
0.02
0.02
0.03
0.02
0.03
0.02
0.02
0.02
0.02
0.095 ±0.014
ND
ND
0.071 ±0.015
ND
0.096 ±0.014
ND
0.078 ±0.012
0.081 ±0.015
0.074 ±0.014
0.192 ±0.015
ND
0.079 ±0.013
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.046 ± 0.037
ND
ND
0.1 19 ±0.046
ND
ND
ND
ND
-------
TABLE A.7-Continued
Sample ID
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
020-S
021-S
022-S
022-S-DU
023-S
024-S
PHNC 025-S
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
026-S
028-S
029-S
030-S
031-S
032-S
032-S-DU
034-S
035-S
NAREL ID
98.02172
98.02168
98.02177
98.02178
98.02169
98.02180
98.02027
98.02182
98.02183
98.02025
98.02171
98.02179
98.02157
98.02158
98.02026
98.02023
Activity (pCi/g
234Th
0.63 ±0.18
0.50 ±0.13
0.49 ±0.13
0.90 ±0.14
0.61 ±0.15
0.53 ±0.17
0.34 ±0.16
0.95 ±0.17
0.78 ± 0.25
0.51 ±0.15
0.32 ±0.15
0.52 ±0.19
0.94 ±0.14
ND
0.44 ±0.16
0.50 ±0.16
234n,pa
ND
0.84 ± 0.72
1.15 ±1.08
1.75 ±0.76
1.30 ±1.29
ND
ND
ND
2.09 ± 1.37
ND
ND
ND
1.75 ±0.85
0.85 ± 0.94
0.97 ± 0.70
1.28 ±0.94
226Ra
1.13 ±0.35
ND
0.91 ±0.20
ND
1.30 ±0.21
1.24 ±0.33
1.00 ±0.33
1.73 ±0.36
1.38 ±0.27
1.45 ±0.20
1.30 ±0.31
1.44 ±0.36
1.22 ±0.19
ND
0.95 ±0.22
1.31 ±0.21
2,4pb
0.24 ± 0.03
0.25 ± 0.02
0.16 ±0.02
0.16 ±0.01
0.28 ± 0.02
0.30 ± 0.03
0.21 ±0.02
0.30 ± 0.03
0.29 ± 0.03
0.26 ± 0.02
0.24 ± 0.02
0.29 ± 0.03
0.28 ± 0.02
0.22 ± 0.02
0.27 ± 0.02
0.28 ± 0.02
± 2a counting
2.4J
0.21 ±
0.23 ±
0.14 ±
0.16±
0.27 ±
0.27 ±
0.18±
0.26 ±
0.25 ±
0.25 ±
0.22 ±
0.26 ±
0.25 ±
0.21 ±
0.25 ±
0.26 ±
0.02
0.02 0.
0.02 0.
0.02 0.
0.02 0.
0.03
0.02
0.03
0.03 0.
0.02
0.02
0.03
0.02
0.02 0.
0.02 0
0.02
error)
23SU
ND
069 ±0.0 10
057 ±0.012
061 ±0.010
079 ±0.012
ND
ND
ND
085 ±0.016
ND
ND
ND
ND
064 ±0,0 13
058 ±0.013
ND
231Pa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.1'-Continued
Sample ID
PHNC 036-S
PHNC 037-S
PHNC 038-S
PHNC 039-S
PHNC 040-S
PHNC041-S
PHNC041-S-DU
PHNC 042-S
PHNC 043-S
PHNC 044-S
PHNC 045-S
PHNC 046-S
PHNC 047-S
PHNC 048-S
PHNC 049-S
PHNC 050-S
PHNC051-S
NARELID
98.02024
98.02170
98.02184
98.02189
98.02429
98.02430
98.02424
98.02186
98.02432
98.02185
98.02427
98.02187
98.02190
98.02191
98.02192
98.02193
98.02231
Activity (pCi/g
234Th
0.53 ±0.12
0.75 ±0.15
1.11±0.21
0.66 ±0.15
1.15 ±0.20
0.68 ±0.18
0.53 ± 0.22
0.62 ±0.1 8
0.45 ±0.1 6
0.97 ±0.19
0.85 ±0.15
0.47 ±0.1 7
0.32 ±0.17
1.09 ±0.15
0.42 ± 0.22
0.75 ±0.17
ND
234mpa
0.93 ± 0.70
ND
2.57 ±1.04
1.39 ±0.79
1.09 ±0.93
1.04 ±1.12
1.14 ±1.09
1.57±1.16
ND
ND
0.93 ±1.02
1.75 ±0.88
0.94 ± 1.24
1.31 ±0.80
ND
ND
ND
0
1
0
1
1
1
1
1
1
1
1
226Ra
.14±0
.30 ±0
.25 ±0
.27 ±0
ND
.45 ±0
.41 ±0
16
31
27
20
24
28
.69 ± 0.22
.31 ±0.21
.87 ±0
.95 ±0
.37 ±0
ND
0.44 ± 0
1
1
1
.55 ±0
.79 ±0
.12±0
36
24
23
20
27
32
25
2Npb
0.27 ±0.01
0.23 ± 0.02
0.38 ± 0.03
0.24 ± 0.02
0.29 ± 0.02
0.31 ±0.02
0.34 ± 0.03
0.31 ±0.02
0.33 ± 0.02
0.34 ± 0.03
0.39 ± 0.02
0.29 ± 0.02
0.29 ± 0.02
0.30 ± 0.02
0.30 ±0.03
0.35 ± 0.03
0.19 ±0.02
± 2a counting error)
2!4Bi
0.27 ± 0.02
0.23 ± 0.02
0.32 ± 0.03
0.21 ± 0.02
0.24 ± 0.02
0.28 ± 0.02
0.32 ± 0.03
0.29 ± 0.02
0.32 ± 0.02
0.33 ± 0.03
0.33 ± 0.02
0.27 ± 0.02
0.26 ± 0.02
0.27 ± 0.02
0.25 ± 0.03
0.33 ± 0.03
0.17 ±0.02
23SU
0.067 ± 0.009
ND
0.094 ±0.016
0.078 ±0.012
0.088 ±0.013
ND
0.086 ±0.017
0.100 ±0.013
0.078 ±0.012
ND
0.118±0.014
ND
0.100 ±0.015
0.071 ±0.011
0.093 ±0.016
ND
ND
231pa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
oo
-------
TABLE A.1-Continued
Sample ID
PHNC051-S-DU
PHNC 052-S
PHNC 053-S
PHNC 054-S
PHNC 056-S
PHNC 057-S
PHNC 059-S
PHNC 060-S
PHNC 061 -S
PHNC 063-S
PHNC 064-S
PHNC 065-S
PHNC 066-S
PHNC 067-S
PHNC 068-S
PHNC 069-S
PHNC 070-S
NARELID
98.02230
98.02194
98.02425
98.02234
98.02195
98.02250
98.02196
98.02243
98.02197
98.02352
98.02353
98.02341
98.02340
98.02345
98.02428
98.02246
98.02251
Activity (pCi/g
234Th
ND
0.54 ±0.21
0.55 ± 0.23
0.57 ± 0.23
0.85 ± 0.25
0.55 ±0.18
ND
0.92 ± 0.20
ND
ND
0.50 ±0.23
0.76 ±0.1 3
1.13±0.16
0.56 ±0.21
0.63 ±0.1 8
0.67 ± 0.22
0.63 ± 0.22
234mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.81 ±1.07
ND
1.79 ±0.72
ND
0.92 ±1.05
0.97 ± 0.95
ND
ND
226Ra
1.42 ±0.29
1.53 ±0.31
1.64 ±0.30
1.46 ±0.38
1.47 ±0.40
1.60 ±0.32
1.40 ±0.39
1.34 ±0.40
1.49 ±0.33
1.33 ±0.28
1.42 ±0.27
1.39±0.19
1.39 ±0.30
ND
1.40 ±0.21
1.48 ±0.34
1.43 ±0.36
2,4pb
0.27 ± 0.02
0.27 ± 0.02
0.24 ± 0.03
0.39 ±0.03
0.33 ± 0.03
0.36 ± 0.03
0.34 ± 0.03
0.43 ± 0.03
0.35 ± 0.03
0.27 ± 0.03
0.28 ± 0.02
0.37 ± 0.02
0.22 ± 0.02
0.30 ±0.02
0.34 ± 0.02
0.47 ± 0.03
0.38 ± 0.03
± 2a counting error)
214gi
0.25 ± 0.02
0.26 ± 0.02
0.21 ±0.03
0.33 ± 0.03
0.31 ±0.03
0.32 ± 0.02
0.32 ± 0.03
0.34 ± 0.03
0.35 ± 0.02
0.26 ± 0.03
0.23 ± 0.03
0.34 ± 0.02
0.17 ±0.02
0.28 ± 0.02
0.31 ±0.02
0.41 ±0.03
0.35 ± 0.03
235U
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.083 ± 0.017
ND
0.085 ±0.011
ND
ND
0.083 ±0.012
ND
ND
231pa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A..1-Continued
Sample ID
PHNC071-S
PHNC071-S-DU
PHNC 072-S
PHNC 073-S
PHNC 074-S
PHNC 075-S
PHNC 076-S
PHNC 077-S
PHNC 077-S-DU
PHNC 078-S
PHNC 079-S
PHNC 080-S
PHNC081-S
PHNC 082-S
PHNC 083-S
PHNC 084-S
PHNC 085-S
NARELID
98.02249
98.02245
98.02426
98.02237
98.02433
98.02431
98.02349
98.02238
98.02239
98.02241
98.02198
98.02233
98.02248
98.02242
98.02247
98.02235
98.02240
Activity (pCi/g
2«Th
0.43 ±0.1 5
0.64 ±0.17
0.51 ±0.18
0.54 ±0.20
ND
0.94 ±0.14
ND
1.27 ±0.28
0.75 ± 0.22
0.94 ±0.17
1.00±0.18
ND
0.67 ±0.26
0.59 ±0.1 6
0.47 ±0.11
ND
0.50 ±0.18
234mpa
ND
ND
1.66 ±0.94
1.39 ± 1.05
ND
1.53 ±0.72
ND
1.15± 1.49
2.16± 1.06
1.47 ±0.99
0.88 ± 1.09
ND
ND
ND
1.46 ±0.62
2.22 ±0.82
ND
226Ra
1.39±0
1.44 ±0
1.55 ±0
1.31±0
1.46 ±0
1.34 ±0
1.18±0
1.58±0
ND
1.52 ±0
1.36 ±0
1.60 ±0
1.73 ±0
ND
31
30
24
27
26
19
27
29
22
21
37
41
1.24 ±0.17
1.34 ±0
ND
.31
2.4pb
0.34 ± 0.02
0.38 ±0.03
0.23 ± 0.02
0.38 ± 0.03
0.36 ±0.02
0.33 ± 0.02
0.31 ±0.03
0.40 ±0.03
0.41 ±0.03
0.37 ± 0.02
0.31 ±0.02
0.40 ±0.03
0.40 ± 0.03
0.38 ±0.02
0.42 ± 0.02
0.31 ±0.03
0.29 ± 0.03
± 2a counting
2I4Bi
0.31 ±0.02
0.34 ± 0.03
0.20 ±0.02
0.33 ±0.03
0.33 ± 0.02
0.29 ± 0.02
0.26 ± 0.03
0.37 ±0.03
0.39 ±0.03
0.35 ±0.02
0.30 ±0.02
0.37 ± 0.03
0.34 ± 0.03
0.34 ± 0.03
0.40 ± 0.02
0.29 ± 0.02
0.25 ± 0.03
0.
0.
0
0
0
0
0
0
0
0
error)
235U
ND
ND
093 ±0.014
082 ±0.016
089 ±0.016
081 ±0.011
ND
094 ±0.017
106 ±0.016
090 ±0.013
ND
ND
ND
.095 ±0.016
.076 ±0.010
ND
.067 ±0.016
231Pa
ND
ND
ND
ND
ND
ND
ND
0.203 ±0.174
ND
ND
ND
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.1-Continued
Sample ID
PHNC
PHNC
PHNC
PHNC
086-S
088-S
089-S
090-S
PHNC 092-S
PHNC 094-S
PHNC
PHNC
PHNC
095-S
096-S
097-S
PHNC 099-S
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
100-S
100-S-DU
102-S
103-S
104-S
105-S
105-S-DU
NARELID
98.02236
98.02244
98.02351
98.02346
98.02350
98.02344
98.02347
98.02277
98.02279
98.02286
98.02290
98.02289
98.02281
98.02282
98.02288
98.02287
98.02283
Activity (pCi/g
234Th
0.48 ±0.17
0.38 ±0.16
0.37 ±0.19
0.67 ± 0.22
ND
ND
ND
ND
0.73 ±0.17
0.84 ±0.16
0.67 ± 0.20
0.55 ±0.19
0.36 ±0.19
0.57 ±0.1 3
0.68 ±0.16
0.84 ±0.12
0.40 ±0.15
234mPa
1.24 ±1.51
ND
ND
1.20± 1.07
0.84 ± 0.94
0.95 ±0.88
1.61 ±0.87
ND
1.30 ±0.72
ND
2.14 ±0.64
0.70 ± 0.97
1.85 ±0.92
0.93 ± 0.92
1.62 ±0.83
1.12 ±0.69
0.83 ± 0.94
226Ra
1.17 ±0.25
1.32 ±0.31
0.81 ±0.23
1.21 ±0.27
1.01 ±0.25
0.94 ± 0.22
0.99 ± 0.22
0.89 ± 0.33
1.02 ±0.24
1.30 ±0.30
1.42 ±0.20
1.49 ±0.21
1.48 ±0.26
1.19±0.19
1.20 ±0.18
0.97 ±0.15
1.01 ±0.21
2I4Pb
0.23 ± 0.03
0.25 ± 0.02
0.17 ±0.02
0.20 ± 0.03
0.15 ±0.02
0.17 ±0.02
0.1 5 ±0.02
0.15 ±0.02
0.18 ±0.02
0.27 ± 0.02
0.29 ± 0.02
0.29 ± 0.02
0.28 ± 0.02
0.17 ±0.02
0.20 ± 0.02
0.18 ±0.01
0.20 ± 0.02
± 2a counting
214]
0.22 ±
0.23 ±
0.17 ±
0.14±
0.14 ±
0.16±
0.14±
0.13 ±
0.16±
0.23 ±
0.27 ±
0.28 ±
0.24 ±
0.17±
0.03
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02 0.
0.02
0.02 0.
0.02 0.
0.03 0
error)
235U
ND
ND
ND
ND
ND
ND
ND
ND
062 ±0.014
ND
086 ±0.012
089 ±0.013
090 ±0.016
0.02 0.075 ±0.0 11
0.18 ±0.02
0.16±
0.18±
0.01 0.
0.02 0
ND
061 ±0.009
060 ±0.012
23IPa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.054 ± 0.034
ND
ND
ND
ND
ND
ND
-------
TABLE A.7-Continued
Sample ID N ARE! , TD
PHNC 106-S
PHNC 142-S
PHNC 145-S
PHNC 146-S
HARBOR SEDIMENT
PHNC091-S-BK
PHNC 108-S-BK
PHNC 109-S-BK
PHNC 143-S-BK
PHNC 143-S-DU-BK
98.02284
98.02181
98.02232
98.02291
Activity (pCi/g
234Th
0.73 ±0.1 9
0.57 ±0.19
0.36 ±0.14
0.59 ±0.14
234mpa
1.10±0.95
ND
1.44 ±0.99
0.55 ± 0.93
226Ra
0.98 ± 0.20
1.24 ±0.36
1.32 ±0.21
1.09 ±0.19
2.4pb
0.17 ±0.02
0.30 ±0.03
0.38 ± 0.02
0.19 ±0.02
± 2a counting error)
21
0.14
0.27
0.35
0.16
-------
TABLE A.1'-Continued
Sample ID
PHNC 087-L
PHNC 093-L
PHNC 098-L
NAREL ID
98.02166
98.02188
98.02272
Activity (pCi/g
234Th
ND
ND
ND
SHORELINE SEDIMENT - BACKGROUND
PHNC 101-L-BK
PHNC110-L-BK
PHNC 110-L-DU-BK
98.02273
98.02274
98.02275
ND
ND
ND
234mPa
1.58 ±0.69
ND
ND
SAMPLES
ND
ND
ND
226Ra
0.87 ±0.16
0.69 ±0.1 6
1.02 ±0.23
0.65 ± 0.22
0.84 ± 0.24
1.26 ±0.24
2Upb
0.33 ± 0.02
0.1 5 ±0.02
0.46 ± 0.02
0.34 ± 0.02
0.34 ± 0.02
0.36 ±0.02
± 2a counting error)
2,4Bi
0.31 ±0.02
0.14 ±0.02
0.43 ± 0.02
0.33 ± 0.02
0.29 ± 0.02
0.32 ± 0.02
235U
0.053 ± 0.010
ND
ND
ND
ND
ND
231pa
ND
ND
ND
ND
ND
ND
223Ra
ND
ND
ND
ND
ND
ND
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.8
Gamma Spectrometry Results for Harbor and Shoreline Sediment Samples
Thorium Decay Chain and Other Gamma-Emitting Radionuclides
Sample ID
NAREL ID
Activity (pCi/g ± 2o counting error)
60Co
7Be
137Cs
40R
228Ra
224Ra
212Pb
212Bi
208rj.J
HARBOR SEDIMENT - STUDY SAMPLES
PHNC001-S
PHNC 005-S
PHNC 007-S
PHNC 009-S
PHNC010-S
PHNC011-S
PHNC012-S
PHNC012-S-DU
PHNC013-S
PHNC 014-S
PHNC015-S
PHNC016-S
PHNC017-S
PHNC018-S
PHNC019-S
PHNC 020-S
98.02280
98.02342
98.02174
98.02343
98.02175
98.02155
98.02151
98.02152
98.02154
98.02153
98.02156
98.02173
98.02159
98.02167
98.02176
98.02172
<0.016
< 0.020
< 0.022
< 0.017
< 0.020
< 0.018
< 0.019
< 0.017
< 0.019
< 0.016
<0.018
< 0.023
< 0.018
< 0.022
< 0.020
< 0.025
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.085 ± 0.086
ND
0.035 ± 0.008
0.022 ± 0.009
0.027 ± 0.009
0.029 ± 0.009
0.075 ±0.0 11
0.040 ± 0.008
0.039 ±0.008
0.025 ± 0.007
0.047 ± 0.009
0.034 ± 0.009
0.017 ±0.007
0.050 ±0.0 13
0.033 ± 0.009
0.037 ±0.0 12
0.042 ± 0.009
0.050 ±0.012
1.8±0.1
1.7±0.1
1.6±0.1
2.0 ±0.2
2.5 ± 0.2
2.2 ±0.2
2.3 ±0.2
2.4 ±0.1
2.3 ±0.2
2.2 ±0.2
5.2 ±0.2
2.8 ±0.2
2.5 ±0.2
2.4 ±0.2
2.4 ±0.2
2.4 ± 0.2
0.21 ±0.03
ND
ND
0.10 ±0.02
0.22 ± 0.03
0.17 ±0.03
0.12 ±0.02
0.12 ±0.02
0.09 ± 0.03
0.07 ± 0.03
0.45 ± 0.03
0.09 ± 0.03
0.11 ±0.02
0.13 ±0.03
0.1 2 ±0.02
0.11 ±0.03
0.19 ±0.23
ND
ND
ND
ND
0.1 5 ±0.20
ND
ND
ND
ND
0.66 ± 0.26
ND
ND
ND
ND
ND
0.264 ± 0.022
0.111 ±0.027
0.087 ± 0.025
0.1 06 ±0.020
0.236 ± 0.023
0.201 ±0.020
0.113±0.017
0.139±0.019
0.097 ±0.021
0.1 02 ±0.020
0.532 ±0.021
0.1 19 ±0.030
0.119±0.018
0.1 33 ±0.025
0.131 ±0.021
0.1 30 ±0.029
0.26 ±0.13
ND
ND
ND
0.23 ±0.12
0.18 ±0.10
0.14±0.10
0.16 ±0.08
0.14±0.10
ND
0.45 ±0.11
ND
0.11±0.11
ND
0.11 ±0.09
ND
0.087 ±0.012
0.029 ±0.011
0.027 ±0.012
0.036 ±0.012
0.088 ±0.01 2
0.064 ±0.012
0.038 ±0.010
0.046 ± 0.008
0.035 ±0.013
0.037 ±0.010
0.166 ±0.012
0.036 ±0.013
0.050 ±0.012
0.050 ±0.01 3
0.037 ±0.010
0.034 ±0.013
(Si
-------
TABLE A.8~Continued
Sample ID
PHNC021-S
PHNC 022-S
PHNC 022-S-DU
PHNC 023-S
PHNC 024-S
PHNC 025-S
PHNC 026-S
PHNC 028-S
PHNC 029-S
PHNC 030-S
PHNC031-S
PHNC 032-S
PHNC 032-S-DU
PHNC 034-S
PHNC 035-S
PHNC 036-S
PHNC 037-S
PHNC 038-S
PHNC 039-S
NARELID
98.02168
98.02177
98.02178
98.02169
98.02180
98.02027
98.02182
98.02183
98.02025
98.02171
98.02179
98.02157
98.02158
98.02026
98.02023
98.02024
98.02170
98.02184
98.02189
Activity (pCi/g ± 2cr counting error)
60Co
0.008 ± 0.004
0.008 ± 0.004
< 0.012
< 0.017
0.017 ±0.007
< 0.022
0.022 ± 0.008
< 0.019
0.010 ±0.006
0.035 ± 0.007
0.034 ± 0.009
0.038 ± 0.005
0.030 ± 0.006
0.01 5 ±0.005
0.019 ±0.005
< 0.012
0.018 ±0.007
< 0.021
0.012 ±0.005
7Be
ND
0.088 ± 0.070
0.1 03 ±0.051
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.090 ± 0.073
0.081 ±0.083
ND
ND
ND
ND
0.056 ± 0.060
137Cs
0.041 ±0.006
0.053 ± 0.009
0.050 ± 0.007
0.035 ± 0.008
0.053 ±0.012
0.065 ±0.011
0.042 ±0.012
0.022 ±0.010
0.025 ± 0.009
0.061 ±0.011
0.065 ±0.013
0.051 ±0.007
0.043 ± 0.008
0.029 ± 0.008
0.040 ± 0.008
0.032 ± 0.006
0.029 ±0.0 10
0.017 ±0.009
0.019 ±0.006
4«K
2.1 ±0.1
2.3 ±0.2
2.3 ±0.1
2.9 ±0.2
3.2 ±0.2
3.5 ±0.2
3.2 ±0.2
2.6 ±0.2
2.9 ±0.2
3.4 ± 0.2
3.4 ±0.2
3.1 ±0.2
2.9 ±0.2
3.1 ±0.2
2.8 ±0.2
2.2 ±0.1
2.7 ±0.2
3. 8 ±0.2
2.1 ±0.1
228Ra
0.10 ±0.02
0.06 ± 0.02
0.07 ± 0.02
0.14 ±0.03
0.14 ±0.03
0.10 ±0.03
0.12 ±0.03
0.15 ±0.03
0.13 ±0.02
0.14 ±0.03
0.14 ±0.03
0.12 ±0.02
0.07 ± 0.03
0.12 ±0.02
0.11 ±0.03
0.11 ±0.02
0.14 ±0.02
0.17 ±0.03
0.12 ±0.02
224Ra
ND
ND
ND
0.16 ±0.22
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.13±0.18
0.15±0.12
0.25 ± 0.25
ND
ND
212Pb
0.113 ±0.014
0.089 ±0.016
0.100 ±0.014
0.177 ±0.019
0.1 63 ±0.031
0.1 16 ±0.029
0.1 59 ±0.031
0.1 79 ±0.025
0.157±0.019
0.1 61 ±0.029
0.1 86 ±0.034
0.138 ±0.015
0.115±0.017
0.142 ±0.019
0.143 ±0.019
0.109 ±0.013
0.151 ±0.026
0.202 ± 0.023
0.130±0.017
2I2Bi
0.12 ±0.08
0.10 ±0.08
0.15 ±0.06
0.21 ±0.10
0.14±0.12
ND
ND
0.16±0.15
0.21 ±0.10
0.22 ±0.1 2
ND
0.16 ±0.08
0.13 ±0.09
0.13 ±0.11
0.25 ±0.10
0.22 ± 0.08
0.15±0.11
0.26 ±0.11
0.18 ±0.09
208--pi
0.036 ± 0.008
0.032 ±0.010
0.040 ±0.008
0.057 ±0.011
0.050 ±0.013
0.032 ±0.012
0.050 ±0.01 4
0.059 ±0.013
0.051 ±0.0 11
0.045 ±0.0 12
0.061 ±0.015
0.045 ± 0.009
0.043 ±0.0 10
0.049 ± 0.009
0.042 ±0.0 11
0.051 ±0.007
0.056 ±0.011
0.057 ±0.014
0.042 ±0.0 10
Ul
-------
TABLE A.8-Continued
Sample ID
PHNC 040-S
PHNC 041-S
PHNC 041-S-DU
PHNC 042-S
PHNC 043-S
PHNC 044-S
PHNC 045-S
PHNC 046-S
PHNC 047-S
PHNC 048-S
PHNC 049-S
PHNC 050-S
PHNC051-S
PHNC051-S-DU
PHNC 052-S
PHNC 053-S
PHNC 054-S
PHNC 056-S
PHNC 057-S
NARELID
98.02429
98.02430
98.02424
98.02186
98.02432
98.02185
98.02427
98.02187
98.02190
98.02191
98.02192
98.02193
98.02231
98.02230
98.02194
98.02425
98.02234
98.02195
98.02250
Activity (pCi/g ± 2a counting error)
60Co
0.013 ±0.005
0.025 ± 0.006
0.014 ±0.008
0.036 ± 0.006
0.013 ±0.005
0.036 ± 0.008
0.021 ± 0.005
0.017 ±0.005
0.020 ± 0.006
0.022 ±0.005
0.016 ±0.007
0.018 ±0.007
0.010 ±0.005
0.021 ±0.006
0.057 ± 0.007
0.063 ± 0.008
0.060 ± 0.009
0.050 ± 0.009
0.089 ± 0.009
7Be
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
!37Cs
0.01 8 ±0.007
0.032 ±0.008
0.037 ±0.010
0.038 ±0.008
0.031 ±0.007
0.013 ±0.012
0.030 ±0.008
0.029 ± 0.008
0.038 ± 0.009
0.030 ± 0.007
0.037 ± 0.009
0.032 ±0.011
0.01 8 ±0.008
0.029 ± 0.009
0.054 ±0.011
0.059 ±0.011
0.059 ±0.014
0.061 ±0.013
0.061 ±0.0 11
40K
2.4 ±0.2
3.0 ±0.2
3.1 ±0.2
2.7 ±0.2
3.1 ±0.2
4.0 ±0.2
3.0 ±0.2
3.2 ±0.2
3.4 ±0.2
3.4 ±0.2
3.3 ±0.2
3.7 ±0.2
2.8 ±0.1
3.0 ±0.2
3.5 ±0.2
3.9 ±0.2
4.6 ±0.2
4.6 ±0.2
4.4 ± 0.2
228Ra
0.12 ±0.03
0.15 ±0.03
0.15 ±0.03
0.15 ±0.02
0.14 ±0.02
0.18 ±0.03
0.27 ± 0.03
0.15 ±0.02
0.17 ±0.03
0.1 5 ±0.02
0.17 ±0.03
0.1 8 ±0.03
0.10 ±0.02
0.16 ±0.02
0.16 ±0.03
0.19 ±0.03
0.19 ±0.03
0.21 ±0.04
0.20 ± 0.03
224Ra
ND
ND
ND
0.16 ±0.21
ND
ND
0.28 ± 0.24
0.1 8 ±0.25
ND
0.14±0.15
ND
ND
ND
ND
0.28 ± 0.27
ND
ND
ND
ND
212Pb
0.151 ±0.020
0.1 68 ±0.020
0.1 67 ±0.026
0.151 ±0.018
0.164±0.018
0.188 ±0.031
0.306 ± 0.020
0.1 85 ±0.021
0.1 88 ±0.021
0.174 ±0.016
0.192 ±0.025
0.200 ± 0.030
0.133 ±0.022
0.1 70 ±0.025
0.1 90 ±0.026
0.222 ± 0.025
0.230 ± 0.036
0.238 ±0.033
0.249 ± 0.030
212Bi
0.12±0.12
0.14 ±0.10
0.15±0.14
0.1 8 ±0.09
0.18 ±0.09
0.11±0.12
0.42 ±0.11
0.17±0.12
0.22 ±0.10
0.14 ±0.08
0.17±0.11
0.17±0.13
ND
0.15 ±0.10
0.19±0.14
0.19±0.16
0.24 ±0.14
ND
0.26 ±0.1 2
208-J.J
0.045 ±0.0 12
0.051 ±0.0 11
0.054 ±0.013
0.058 ±0.011
0.052 ± 0.009
0.061 ±0.014
0.092 ±0.0 11
0.057 ±0.010
0.059 ±0.012
0.052 ± 0.009
0.057 ±0.0 12
0.073 ±0.0 13
0.041 ±0.009
0.058 ±0.010
0.064 ±0.01 2
0.074 ±0.0 14
0.065 ±0.015
0.079 ±0.0 15
0.065 ±0.01 3
-------
TABLE A.S-Continued
Sample ID
PHNC 059-S
PHNC 060-S
PHNC061-S
PHNC 063-S
PHNC 064-S
PHNC 065-S
PHNC 066-S
PHNC 067-S
PHNC 068-S
PHNC 069-S
PHNC 070-S
PHNC071-S
PHNC071-S-DU
PHNC 072-S
PHNC 073-S
PHNC 074-S
PHNC 075-S
PHNC 076-S
PHNC 077-S
NAREL ID
98.02196
98.02243
98.02197
98.02352
98.02353
98.02341
98.02340
98.02345
98.02428
98.02246
98.02251
98.02249
98.02245
98.02426
98.02237
98.02433
98.02431
98.02349
98.02238
Activity (pCi/g ± 2a counting error)
60Co
0.029 ± 0.008
0.022 ±0.009
0.033 ± 0.008
0.024 ± 0.007
0.024 ± 0.008
0.011 ±0.005
0.027 ± 0.007
0.027 ± 0.008
0.147 ±0.007
0.039 ± 0.008
0.055 ±0.008
0.032 ± 0.007
0.048 ± 0.007
0.047 ± 0.006
0.040 ± 0.007
0.033 ± 0.006
0.037 ±0.005
0.037 ±0.008
0.031 ±0.008
7Be
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
0.045 ±0.012
0.043 ±0.0 13
0.051 ±0.011
0.034 ± 0.009
0.041 ±0.010
0.0 16 ±0.006
0.018 ±0.008
0.029 ± 0.009
0.021 ±0.007
0.047 ±0.0 14
0.032 ±0.011
0.030 ± 0.009
0.039 ±0.010
0.040 ± 0.009
0.040 ±0.0 10
0.051 ±0.008
0.050 ± 0.007
0.038 ±0.010
0.032 ±0.010
4»K
3. 9 ±0.2
4.1 ±0.2
3.6 ±0.2
3.0 ±0.2
3.1 ±0.2
3. 5 ±0.1
3.8 ±0.2
3.4 ±0.2
2.6 ±0.1
3. 8 ±0.2
3.6 ±0.2
3.2 ±0.2
3.7 ±0.2
3.2 ±0.2
3.8 ±0.2
3.7 ±0.2
3.9 ±0.2
3.8 ±0.2
3. 5 ±0.2
228Ra
0.16 ±0.03
ND
0.17 ±0.03
0.12 ±0.03
0.15 ±0.03
0.18 ±0.02
ND
0.18 ±0.03
0.13 ±0.02
0.17 ±0.03
0.16 ±0.03
0.13 ±0.03
0.14 ±0.03
0.14 ±0.03
0.16 ±0.03
0.19 ±0.03
0.1 8 ±0.02
0.14 ±0.03
0.21 ±0.04
224Ra
ND
ND
ND
ND
ND
0.20 ±0.1 9
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.2pb
0.200 ±0.033
0.204 ± 0.036
0.1 90 ±0.026
0.1 53 ±0.024
0.1 52 ±0.024
0.184±0.015
0.1 70 ±0.024
0.1 79 ±0.025
0.142 ±0.018
0.213 ±0.034
0.1 71 ±0.029
0.1 64 ±0.026
0.1 74 ±0.029
0.160 ±0.019
0.1 71 ±0.024
0.208 ±0.021
0.180±0.016
0.1 54 ±0.024
0.1 93 ±0.026
212Bi
0.18±0.14
ND
ND
0.18 ±0.14
0.22 ±0.1 5
0.20 ± 0.08
0.15±0.11
0.19±0.15
0.14 ±0.09
ND
0.14±0.11
0.13 ±0.11
0.13 ±0.10
0.17±0.10
0.22 ±0.1 2
0.11 ±0.13
0.20 ± 0.07
0.17±0.15
0.20 ±0.17
208-^1
0.052 ±0.014
0.063 ±0.016
0.066 ±0.012
0.062 ±0.013
0.050 ±0.014
0.060 ± 0.009
0.061 ±0.0 12
0.057 ±0.013
0.050 ± 0.009
0.065 ±0.014
0.059 ±0.012
0.050 ±0.011
0.053 ±0.013
0.052 ±0.0 12
0.063 ±0.0 12
0.066 ±0.0 12
0.056 ±0.0 10
0.060 ±0.0 14
0.065 ±0.015
-------
TABLE A.S-Continued
Sample ID
PHNC 077-S-DU
PHNC 078-S
PHNC 079-S
PHNC 080-S
PHNC081-S
PHNC 082-S
PHNC 083-S
PHNC 084-S
PHNC 085-S
PHNC 086-S
PHNC 088-S
PHNC 089-S
PHNC 090-S
PHNC 092-S
PHNC 094-S
PHNC 095-S
PHNC 096-S
PHNC 097-S
PHNC 099-S
NARELID
98.02239
98.02241
98.02198
98.02233
98.02248
98.02242
98.02247
98.02235
98.02240
98.02236
98.02244
98.02351
98.02346
98.02350
98.02344
98.02347
98.02277
98.02279
98.02286
Activity (pCi/g ± 2a counting error)
60Co
0.024 ± 0.007
0.031 ±0.005
0.01 3 ±0.005
0.020 ±0.008
0.035 ± 0.009
0.01 7 ±0.006
0.010 ±0.004
< 0.019
< 0.023
< 0.023
< 0.022
< 0.015
< 0.019
< 0.018
< 0.015
< 0.015
< 0.024
< 0.019
< 0.018
7Be
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
137Cs
0.034 ±0.0 10
0.034 ± 0.009
0.014 ±0.006
0.046 ±0.0 13
0.040 ±0.012
0.022 ±0.009
0.031 ±0.007
0.076 ±0.0 11
0.044 ±0.0 10
0.044 ±0.0 11
0.063 ±0.012
0.050 ±0.009
0.051 ±0.010
0.062 ±0.011
0.054 ±0.009
0.060 ±0.009
0.072 ±0.0 12
0.041 ± 0.008
0.033 ±0.010
40R
3.6 ±0.2
3.8 ±0.2
3.0 ±0.2
3.6 ±0.2
3.7 ±0.2
3.6 ±0.2
2.5 ±0.1
3.0 ±0.2
3.0 ±0.2
3.3 ±0.2
3.6 ±0.2
2.8 ±0.2
2.2 ±0.2
2.5 ±0.2
2.9 ±0.2
2.8 ±0.2
3.5 ±0.2
2.1 ±0.2
1.5±0.1
228Ra
0.18 ±0.03
0.19 ±0.02
0.15 ±0.03
0.17 ±0.03
0.17 ±0.03
0.19 ±0.03
0.12 ±0.02
0.14 ±0.03
0.10 ±0.03
0.14 ±0.03
0.13 ±0.03
0.11 ±0.03
0.11 ±0.03
0.10 ±0.03
0.07 ± 0.03
0.11 ±0.02
0.10 ±0.03
0.08 ± 0.02
0.07 ± 0.02
224Ra
ND
0.26 ±0.1 7
ND
ND
ND
0.21 ±0.27
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2I2Pb
0.1 99 ±0.025
0.202 ±0.01 8
0.1 67 ±0.020
0.1 76 ±0.032
0.1 89 ±0.033
0.226 ± 0.022
0.132± 0.014
0.149 ±0.029
0.1 39 ±0.022
0.145 ±0.023
0.1 73 ±0.028
0.1 25 ±0.021
0.1 03 ±0.024
0.094 ±0.021
0.090 ±0.021
0.101 ±0.021
0.162 ±0.031
0.095 ± 0.020
0.072 ± 0.024
212Bi
0.19±0.10
0.22 ±0.10
ND
ND
0.16±0.17
0.24 ±0.11
0.11 ±0.08
0.20 ±0.11
0.24 ±0.10
0.16±0.13
0.21 ±0.12
ND
0.16±0.14
ND
0.12±0.13
0.10±0.10
ND
0.10±0.10
ND
208^
0.065 ± 0.014
0.067 ±0.010
0.052 ±0.011
0.061 ±0.013
0.061 ±0.0 15
0.065 ± 0.013
0.045 ± 0.008
0.046 ±0.0 12
0.054 ±0.013
0.048 ±0.014
0.057 ±0.012
0.048 ±0.0 12
0.040 ±0.0 13
0.023 ±0.012
0.036 ±0.011
0.033 ±0.011
0.05 8 ±0.0 13
0.036 ± 0.009
0.028 ±0.0 11
Ul
oo
-------
TABLE A.8~Continued
Sample ID
PHNC 100-S
PHNC 100-S-DU
PHNC 102-S
PHNC 103-S
PHNC 104-S
PHNC 105-S
PHNC 105-S-DU
PHNC 106-S
PHNC-142-S
PHNC 145-S
PHNC 146-S
NAREL ID
98.02290
98.02289
98.02281
98.02282
98.02288
98.02287
98.02283
98.02284
98.02181
98.02232
98.02291
Activity (pCi/g ± 2a counting error)
60Co
< 0.015
< 0.013
< 0.020
< 0.016
< 0.015
< 0.011
< 0.015
< 0.014
0.048 ± 0.009
0.039 ± 0.006
< 0.016
7Be
ND
ND
ND
ND
ND
ND
0.1 15 ±0.065
0.090 ± 0.073
ND
ND
ND
I37Cs
0.010 ±0.006
0.014 ±0.007
ND
0.047 ± 0.008
0.044 ± 0.008
0.023 ± 0.005
0.067 ±0.008
0.045 ± 0.007
0.055 ±0.01 3
0.039 ±0.008
0.028 ± 0.007
40R
l.OiO.l
0.9 ±0.1
2.5 ±0.2
2.3 ±0.1
2.4 ±0.1
2.5 ±0.1
3.7 ±0.2
2.0 ±0.1
3.5 ±0.2
4.0 ±0.2
1.6±0.1
228Ra
ND
0.06 ± 0.02
0.14 ±0.03
0.08 ± 0.02
0.13 ±0.02
0.13 ±0.02
0.1 8 ±0.02
0.10 ±0.02
0.14 ±0.03
0.20 ±0.03
0.05 ± 0.02
224Ra
ND
ND
ND
ND
ND
0.14±0.12
ND
ND
ND
ND
ND
2I2Pb
0.056 ±0.01 6
0.058 ±0.01 8
0.1 45 ±0.024
0.119±0.015
0.141 ±0.016
0.155±0.013
0.190±0.017
0.119±0.017
0.1 72 ±0.032
0.232 ±0.01 8
0.078 ±0.015
212Bi
0.09 ± 0.07
0.13±0.12
O.lOiO.10
0.10 ±0.09
0.14 ±0.09
0.16 ±0.07
0.26 ±0.09
ND
ND
0.28 ± 0.09
0.13 ±0.07
208-Tii
0.013 ±0.010
0.022 ± 0.009
0.050 ±0.011
0.044 ± 0.009
0.042 ± 0.009
0.047 ± 0.007
0.057 ±0.010
0.044 ± 0.009
0.055 ±0.013
0.081 ±0.010
0.026 ± 0.009
HARBOR SEDIMENT - BACKGROUND SAMPLES
PHNC091-S-BK
PHNC 108-S-BK
PHNC 109-S-BK
PHNC 143-S-BK
98.02348
98.02278
98.02292
98.02285
PHNC 143-S-DU-BK 98.02276
< 0.017
< 0.028
< 0.014
< 0.019
0.021
ND
ND
0.1 54 ±0.072
ND
ND
0.030 ±0.008
0.143 ±0.014
0.083 ± 0.008
0.171 ±0.013
0.175 ±0.014
3.4 ±0.2
4.1 ±0.2
3.0±0.1
4.1 ±0.2
4.4 ± 0.2
0.17 ±0.03
0.15 ±0.03
0.11 ±0.02
0.28 ± 0.03
0.25 ± 0.03
ND
ND
0.15±0.15
0.21 ±0.23
ND
0.180±0.018
0.1 90 ±0.031
0.124 ±0.014
0.282 ±0.023
0.288 ±0.033
0.24 ± 0.09
0.13±0.12
0.12 ±0.07
0.32 ±0.10
0.22 ±0.1 2
0.065 ±0.011
0.065 ±0.0 14
0.039 ± 0.009
0.087 ±0.01 3
0.078 ± 0.014
-------
TABLE A.8~Continued
ON
0
Sample ID
SHORELINE
PHNC 002-L
PHNC 003-L
PHNC 003-L-DU
PHNC 004-L
PHNC 008-L
PHNC 027-L
PHNC 087-L
PHNC 093-L
PHNC 098-L
SHORELINE
PHNC 101-L-BK
PHNC110-L-BK
NAREL ID
60Co
SEDIMENT - STUDY
98.02160
98.02161
98.02162
98.02163
98.02164
98.02165
98.02166
98.02188
98.02272
< 0.014
< 0.013
< 0.014
< 0.012
< 0.018
< 0.012
< 0.013
< 0.009
< 0.012
7Be
SAMPLES
0.1 24 ±0.065
ND
ND
0.074 ± 0.064
0.1 16 ±0.076
ND
0.077 ± 0.059
0.226 ± 0.055
ND
137Cs
0.01 7 ±0.006
0.006 ± 0.006
0.011 ±0.005
0.050 ±0.007
0.030 ±0.009
ND
0.011 ±0.005
ND
ND
Activity
40K
2.2 ±0.1
2.4 ±0.1
2.4 ±0.1
4.7 ±0.1
5.2 ±0.2
2.9 ±0.1
1.8±0.1
0.7 ±0.1
0.4 ±0.1
(pCi/g ±
228Ra
0.21 ±0.02
0.1 8 ±0.02
0.16 ±0.02
0.36 ±0.02
0.52 ± 0.03
0.24 ± 0.02
0.09 ± 0.02
0.04 ± 0.02
ND
2a counting
224Ra
0.24 ± 0.22
ND
ND
0.36±0.15
0.36 ± 0.23
0.12±0.16
0.13±0.15
ND
ND
error)
2I2Pb
0.227 ± 0.020
0.191 ±0.017
0.185 ±0.016
0.399 ±0.016
0.531 ±0.022
0.286 ±0.01 8
0.117±0.015
0.042 ±0.014
ND
2)2Bi
0.20 ±0.1 2
0.23 ± 0.07
0.20 ± 0.07
0.42 ± 0.08
0.49 ±0.11
0.25 ±0.10
0.12 ±0.06
ND
ND
208npj
0.069 ±0.010
0.063 ± 0.009
0.059 ± 0.008
0.1 25 ±0.008
0.184 ±0.010
0.086 ±0.009
0.035 ± 0.008
0.01 8 ±0.007
ND
SEDIMENT - BACKGROUND SAMPLES
98.02273
98.02274
PHNC 1 1 0-L-DU-BK 98.02275
< 0.014
< 0.014
< 0.014
ND
ND
ND
0.019 ±0.006
0.010 ±0.006
ND
3.3 ±0.1
0.7 ±0.1
0.8 ±0.1
0.09 ± 0.02
ND
ND
ND
ND
ND
0.095 ± 0.022
0.033 ±0.015
0.022 ±0.015
0.10 ±0.08
ND
ND
0.029 ± 0.008
0.01 5 ±0.009
ND
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.9
Gross Alpha and Gross Beta Activity Results for
Harbor and Shoreline Sediment Samples
Sample ID
HARBOR SEDIMENT
PHNC001-S
PHNC 005-S
PHNC 007-S
PHNC 009-S
PHNC 010-S
PHNC011-S
PHNC 012-S
PHNC 012-S-DU
PHNC 013-S
PHNC 014-S
PHNC 015-S
PHNC 016-S
PHNC 017-S
PHNC018-S
PHNC 019-S
PHNC 020-S
PHNC 021-S
PHNC 022-S
PHNC 022-S-DU
PHNC 023-S
PHNC 024-S
NAREL ID
Activity
(pCi/g ± 2a counting error)
Gross Alpha
- STUDY SAMPLES
98.02280
98.02342
98.02174
98.02343
98.02175
98.02155
98.02151
98.02152
98.02154
98.02153
98.02156
98.02173
98.02159
98.02167
98.02176
98.02172
98.02168
98.02177
98.02178
98.02169
98.02180
16.5 ±7.6
11.8 ±6.4
4.9 ± 4.4
5.8 ±5.1
9.2 ±6.3
15.3 ±7.8
14.2 ±7.3
10.4 ±6.7
20.7 ±8.1
14.3 ±7.1
4.1 ±5.1
4.6 ±4.8
13.5 ±7.0
12.5 ±6.7
18.8 ±7.8
18.4 ±8.0
8.5 ±5.6
10.8 ±7.9
7.1 ±5.2
14.0 ±7.9
11.1 ±6.4
Gross Beta
12.5 ±3.1
9.6 ±3.1
7.1 ±2.7
10.3 ±3.0
5.4 ±2.7
8.8 ±3.2
8.7 ±3.5
11.9±3.5
11.5 ±3.2
9.3 ±3.5
13.3 ±3.3
13.7 ±3.3
12.5 ±3.2
10.4 ±3.1
10.5 ±3.1
13.6 ±3.3
11.5±3.1
9.4 ±3.0
10.4 ±2.9
7.8 ±2.9
12.5 ±3.2
61
-------
Table A.9~Continued
Sample ID
PHNC 025-S
PHNC 026-S
PHNC 028-S
PHNC 029-S
PHNC 030-S
PHNC031-S
PHNC 032-S
PHNC 032-S-DU
PHNC 034-S
PHNC 035-S
PHNC 036-S
PHNC 037-S
PHNC 038-S
PHNC 039-S
PHNC 040-S
PHNC 041-S
PHNC041-S-DU
PHNC 042-S
PHNC 043-S
PHNC 044-S
PHNC 045-S
PHNC 046-S
PHNC 047-S
NARELID
98.02027
98.02182
98.02183
98.02025
98.02171
98.02179
98.02157
98.02158
98.02026
98.02023
98.02024
98.02170
98.02184
98.02189
98.02429
98.02430
98.02424
98.02186
98.02432
98.02185
98.02427
98.02187
98.02190
Activity
(pCi/g ± 2cr counting error)
Gross Alpha
11.3 ±6.6
13.1 ±8.8
4.5 ±8.0
12.1 ±7.7
6.5 ±5.2
16.1 ±7.1
15.6±7.1
13.3 ±6.5
8.7 ±6.7
11.9 ±7.0
10.8 ±7.2
1.6±3.8
9.4 ±6.3
1.6 ±4.2
4.2 ±4.9
15.7 ±7.0
6.3 ±5.2
5.3 ±5.0
4.2 ±4.9
1.4 ±7.7
7.3 ±5.4
11.3±6.6
8.1 ±5.7
Gross Beta
10.3 ±3.1
10.8 ±3.8
7.4 ±3.5
13. 8 ±3.7
8.0 ±2.6
9.8 ±2.9
7.6 ±2.9
8.6 ±2.9
9.1 ±3.5
8.0 ±3.4
7.2 ±3.6
4.9 ±2.4
6.9 ±3.3
5.5 ±2.6
5.0 ±2.6
6.9 ±2.8
6.8 ±2.9
7.5 ±2.8
9.6 ±3.0
6.2 ±3.4
6.3 ±2.7
11.8±3.3
9.8 ±2.9
62
-------
Table \.9~Continued
Sample ID
PHNC 048-S
PHNC 049-S
PHNC 050-S
PHNC051-S
PHNC051-S-DU
PHNC 052-S
PHNC 053-S
PHNC 054-S
PHNC 056-S
PHNC 057-S
PHNC 059-S
PHNC 060-S
PHNC061-S
PHNC 063-S
PHNC 064-S
PHNC 065-S
PHNC 066-S
PHNC 067-S
PHNC 068-S
PHNC 069-S
PHNC 070-S
PHNC 071-S
PHNC 071-S-DU
NARELID
98.02191
98.02192
98.02193
98.02231
98.02230
98.02194
98.02425
98.02234
98.02195
98.02250
98.02196
98.02243
98.02197
98.02352
98.02353
98.02341
98.02340
98.02345
98.02428
98.02246
98.02251
98.02249
98.02245
Activity
(pCi/g ± 2a counting error)
Gross Alpha
3.5 ±4.8
14.4 ±7.0
6.1 ±5.0
11. 8 ±6.4
13.2 ±7.0
5.4 ±4.8
6.1 ±5.4
7.5 ±6.4
9.2 ±6.0
12.8 ±7.5
14.5 ±6.7
5.3 ±4.6
7.2 ±6.1
2.3 ±4.1
12.3 ±7.0
8.0 ±5.3
7.2 ±5.3
3.8 ±4.9
3.4 ±4.1
16.1 ±8.8
5.4 ±4.8
6.5 ±4.9
14.5 ±7.1
Gross Beta
5.5 ±2.6
9.8 ±2.9
10.8 ±3.0
6.7 ±2.7
6.1 ±2.7
7.2 ±2.8
6.1 ±2.9
12.2 ±3.7
6.4 ±2.7
9.2 ±3.0
12.9 ±3.3
9.5 ±2.8
11.6±3.3
7.7 ±2.9
10.2 ±3.2
6.3 ±2.5
7.7 ±2.7
4.3 ± 2.6
4.7 ±2.5
8.5 ±2.9
7.6 ±2.7
4.3 ±2.5
7.3 ±2.8
63
-------
Table ^.9-Continued
Sample ID
PHNC 072-S
PHNC 073-S
PHNC 074-S
PHNC 075-S
PHNC 076-S
PHNC 077-S
PHNC 077-S-DU
PHNC 078-S
PHNC 079-S
PHNC 080-S
PHNC081-S
PHNC 082-S
PHNC 083-S
PHNC 084-S
PHNC 085-S
PHNC 086-S
PHNC 088-S
PHNC 089-S
PHNC 090-S
PHNC 092-S
PHNC 094-S
PHNC 095-S
PHNC 096-S
NARELID
98.02426
98.02237
98.02433
98.02431
98.02349
98.02238
98.02239
98.02241
98.02198
98.02233
98.02248
98.02242
98.02247
98.02235
98.02240
98.02236
98.02244
98.02351
98.02346
98.02350
98.02344
98.02347
98.02277
Activity
(pCi/g ± 2a counting error)
Gross Alpha
3.1 ±4.9
10.7 ±6.1
8.9 ±5.5
9.5 ±5.8
4.0 ±4.1
7.4 ±5.9
12.0 ±7.0
11.2±6.1
11.2±7.0
10.9 ±6.4
11.8±6.1
6.6 ±4.9
8. 8 ±5.6
15. 8 ±7.9
8.3 ±5.8
5.2 ±7.7
12.5 ±6.8
3.8 ±5.1
10.4 ±6.5
7.4 ±5.9
7.7 ±5.3
4.8 ±6.1
5.3 ±5.0
Gross Beta
5. 8 ±2.7
10.5 ±3.1
6.5 ±2.7
4.5 ±2.5
7.7 ±2.7
11.0±3.3
8.6 ±3.0
10.2 ±3.0
10.9 ±3.2
8.3 ±3.5
8.2 ±2.8
8.1 ±2.7
4.1 ±2.6
9.8 ±3.7
9.6 ±2.8
9.6 ±3.7
8.7 ±2.9
7.0 ±2.8
8.7 ±2.9
5.1 ±2.7
3.9 ±2.5
6.6 ±2.8
5.6 ±2.7
64
-------
Table A.9~Continued
Sample ID
PHNC 097-S
PHNC 099-S
PHNC 100-S
PHNC 100-S-DU
PHNC 102-S
PHNC 103-S
PHNC 104-S
PHNC 105-S
PHNC 105-S-DU
PHNC 106-S
PHNC 142-S
PHNC 145-S
PHNC 146-S
HARBOR SEDIMENT
PHNC091-S-BK
PHNC 108-S-BK
PHNC 109-S-BK
PHNC 143-S-BK
PHNC 143-S-DU-BK
NARELID
98.02279
98.02286
98.02290
98.02289
98.02281
98.02282
98.02288
98.02287
98.02283
98.02284
98.02181
98.02232
98.02291
Activity
(pCi/g ± 2a counting error)
Gross Alpha Gross Beta
11.8±7.1
9.7 ±7.3
13.3 ±7.0
8.1 ±6.3
6.2 ±5.1
13.2 ±6.7
7.0 ±5.6
5.3 ±5.1
4.0 ±4.2
4.3 ±4.3
10.6 ±6.7
17.3 ±7.4
13. 8 ±7.2
- BACKGROUND SAMPLES
98.02348
98.02278
98.02292
98.02285
98.02276
0.5 ±3.1
6.2 ±5.4
8.9 ±5.7
8.7 ±5.8
7.7 ±5.2
6.8 ±2.9
14.8 ±3.4
9.3 ±3.0
10.3 ±3.1
6.6 ±2.7
7.9 ±2.7
7.4 ±2.9
3.5 ±2.6
5.9 ±2.5
3.6 ±2.5
11.7 ±3.7
11.2±3.1
10.3 ±2.9
4.3 ±2.5
5.4 ±2.8
9.2 ±2.8
6.7 ± 2.7
6.8 ±2.7
SHORELINE SEDIMENT - STUDY SAMPLES
PHNC 002-L
PHNC 003-L
PHNC 003-L-DU
98.02160
98.02161
98.02162
2.4 ±4.2
2.2 ±3. 8
-0.1 ±3.7
4.8 ±2.6
3.3 ±2.5
1.9 ±2.3
65
-------
Table A.9-Continued
Sample ID
PHNC 004-L
PHNC 008-L
PHNC 027-L
PHNC 087-L
PHNC 093 -L
PHNC 098-L
NARELID
98.02163
98.02164
98.02165
98.02166
98.02188
98.02272
Activity
(pCi/g ± 2(j counting error)
Gross Alpha Gross Beta
0.5 ±5.4 8.1 ±2.9
-0.5 ±3.1 9.0 ±2.7
3.4 ±3.6 4.2 ±2.4
-0.9 ±2.0 3.4 ±2.3
-0.1 ±3.5 1.4 ±2.4
-0.3 ±3.2 2.2 ±2.5
SHORELINE SEDIMENT - BACKGROUND SAMPLES
PHNC 101-L-BK
PHNC 110-L-BK
PHNC 110-L-DU-BK
98.02273
98.02274
98.02275
0.7 ±3.9 2.7 ±2.4
5. 8 ±5.3 2. 8 ±2.3
2.9 ±4.1 1.5 ±2.2
66
-------
TABLE A.10
Thorium and Strontium Radiochemical Results for Harbor and Shoreline Sediment Samples
Sample ID
PHNC011-S
PHNC017-S
PHNC 020-S
PHNC 028-S
PHNC091-S-BK
NAREL
ID
98.02155
98.02159
98.02172
98.02183
98.02348
Activity (pCi/g ±
22
0.019
'T
±
h
0.073
-0.004 ± 0.072
0.059
0.027
0.024
±
±
±
0.076
0.061
0.036
228Th
0.26 ±0.11
0.30 ±0.10
0.41 ±0.13
0.44 ±0.12
0.20 ± 0.07
2<7 counting error)
230Tfa 232Th
0.45
0.39
0.46
0.39
0.43
±0.12
±0.11
±0.12
±0.10
±0.10
0.19±
0.18±
0.16±
0.27 ±
0.24 ±
0.08
0.07
0.07
0.08
0.07
90Sr
0.36 ±0
-0.44 ± 0
0.08 ± 0
-0.16 ±0
0.35 ± 0
63
64
58
50
67
0\
TABLE A.11
Uranium, Plutonium, and Technetium Radiochemical Results for Harbor and Shoreline Sediment Samples
Sample ID
PHNC011-S
PHNC013-S
PHNC 017-S
PHNC 020-S
PHNC 028-S
PHNC091-S-BK
NAREL ID
98.02155
98.02154
98.02159
98.02172
98.02183
98.02348
Activity (pCi/g ±
234U
1.18±0
a
1.24 ±0
1.64 ±0
1.73 ±0
1.17±0
235U
21
22
26
27
20
0.082
0.114
0.075
0.044
0.075
± 0.058
a
± 0.069
± 0.056
± 0.047
± 0.055
238u
0.93 ±0.1 8
a
1.11 ±0.20
1.18±0.21
1.65 ±0.26
0.98 ±0.18
2a counting error)
238pu 239pu
-0.029 ±
a
-0.008 ±
-0.038 ±
0.013 ±
0.006 ±
0.029
0.036
0.025
0.044
0.043
0.019
0.050
0.030
0.038
0.006
± 0.025
a
± 0.037
± 0.024
± 0.030
±0.011
"Tc
a
1.14 ±0.97
0.81 ±0.95
0.56 ±0.94
0.28 ± 0.93
0.45 ± 0.93
a This analysis was not performed on this sample.
-------
TABLE A.12
Gamma Spectrometry Results for Sediment Core Samples
Uranium and Actinium Decay Chains
Sample ID
Core Slice
(cm)
NARELID
Activity (pCi/g ±
234Th
234mpa
226Ra
2a counting
214Pb
error)
2.4Bj
23SU
STUDY SAMPLES
PHNC001-C
PHNC001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-38
98.02981
98.02982
98.02983
98.02984
98.02985
98.02986
98.02987
98.02988
98.02034
98.02035
98.02036
98.02037
98.02038
98.02039
98.02040
0.85 ± 0.52
ND
ND
ND
ND
ND
0.58 ±0.32
ND
0.72 ± 0.28
ND
0.58 ±0.31
0.94 ±0.31
0.73 ± 0.24
0.73 ± 0.22
1.05 ±0.23
ND
ND
ND
ND
ND
ND
ND
2.10±1.65
ND
2.09 ±2.35
ND
1.13±2.18
1.70 ±1.60
ND
ND
ND
1.32 ±0.74
0.89 ± 0.79
1.53 ±0.93
1.15 ±0.70
1.15 ±0.74
1.37 ±0.50
1.19 ±0.55
0.42 ±0.41
0.36 ± 0,40
0.55 ±0.41
0.86 ±0.36
1.00 ±0.37
0.98 ±0.31
1.13 ±0.44
0.30 ± 0.07
0.39 ± 0.06
0.45 ± 0.07
0.49 ± 0.07
0.52 ± 0.06
0.48 ± 0.06
0.37 ±0.05
0.42 ± 0.04
0.06 ± 0.04
0.09 ± 0.04
0.07 ± 0.04
0.08 ± 0.03
0.08 ± 0.03
0.14 ±0.02
0.21 ±0.04
0.24 ± 0.07
0.34 ± 0.06
0.39 ± 0.07
0.48 ± 0.08
0.47 ± 0.06
0.42 ± 0.06
0.36 ± 0.05
0.38 ± 0.04
0.08 ± 0.05
ND
0.10 ±0.04
ND
0.10 ±0.04
0.12 ±0.03
0.17 ±0.04
0.047 ± 0.043
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.12~Continued
Sample ID
PHNC 010-C
PHNC010-C
PHNC 010-C
PHNC 010-C
PHNC016-C
PHNC 016-C
PHNC016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC019-C
PHNC019-C
PHNC019-C
PHNC019-C
PHNC 020-C
Core Slice
(cm)
00-05
05-10
10-15
15-23
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-42
00-05
05-10
10-15
15-21
00-05
NARELID
98.02041
98.02042
98.02043
98.02044
98.02045
98.02046
98.02047
98.02048
98.02049
98.02050
98.02051
98.02052
98.02053
98.02054
98.02055
98.02056
98.02057
Activity (pCi/g ±
234Th
0.57 ± 0.26
ND
ND
ND
0.35 ±0.33
ND
ND
ND
ND
ND
ND
1.04 ±0.26
1.18 ±0.32
0.84 ±0.37
0.45 ± 0.24
1.24 ±0.30
ND
234mpa
ND
ND
1.47 ±1.75
ND
ND
2.24 ±2.10
ND
ND
ND
ND
ND
ND
1.54 ±2.57
ND
ND
ND
ND
226Ra
0.79 ±
0
1
88 ±
08 ±
1.07±
0.39
0.35
0.36
0.46
ND
0.41 ±
0.43 ±
0
0
0
0
0
0
0
1
2
0
60 ±
45 ±
58 ±
36 ±
51 ±
42 ±
52 ±
24 ±
67 ±
91 ±
0.45
0.31
0.60
0.51
0.47
0.52
0.38
0.45
0.44
0.53
0.55
0.93
2cr counting
2MPb
0.19 ±0.04
0.22 ± 0.03
0.25 ± 0.04
0.30 ± 0.04
ND
0.10 ±0.04
0.09 ± 0.02
0.12 ±0.06
0.10 ±0.05
ND
0.07 ± 0.05
0.07 ± 0.03
0.09 ± 0.04
0.12 ±0.04
0.45 ± 0.04
1.14 ±0.05
ND
error)
2um
0.16 ±0.05
0.20 ± 0
0.21 ±0
0.26 ±0
.04
.04
04
0.08 ± 0.06
ND
0.09 ± 0.03
0.13 ±0.07
ND
ND
ND
0.10 ±0.04
0.11±0
0.12±0.
0.42 ± 0.
1.02±0.
ND
05
05
04
06
23SU
ND
0.057 ±0.021
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.030 ± 0.027
ND
ND
ND
ND
-------
TABLE A.12~Continued
Sample ID
PHNC
020-C
PHNC 020-C
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
020-C
020-C
020-C
020-C
022-C
022-C
022-C
022-C
022-C
022-C-DU
022-C-DU
PHNC 022-C-DU
PHNC
PHNC
PHNC
022-C-DU
022-C-DU
022-C-DU
Core Slice
(cm)
05-10
10-15
15-20
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
00-05
05-10
10-15
15-20
20-25
25-30
NARELID
98
98
98
98
98
98
98
98
02058
02059
02060
02061
02062
02063
02064
02065
98.02066
98
98
98
98
98
98
98
98
02067
02068
02069
02070
02071
02072
02073
02074
Activity (pCi/g ±
234Th
1.01 ±0.45
0.99 ±0.38
1.14 ±0.49
1.42 ±0.50
ND
0.65 ± 0.34
1.10±0.61
2.03 ±0.61
ND
1.07 ±0.43
ND
ND
0.80 ±0.51
ND
0.68 ±0.59
ND
ND
234mpa
ND
2.20 ±3. 15
ND
ND
ND
2.65 ± 2.24
ND
6.56 ±5.45
ND
ND
2.78 ±2.96
ND
4.37 ±2.84
ND
2.62 ± 4.00
7.45 ± 3.78
ND
226Ra
1.19±0
1.28 ±0
1.47 ±0
1.57 ±0
1.26±0
1.59 ±0
ND
0.86 ±0
0.66 ± 0
1.04 ±0
63
56
62
67
53
52
79
65
64
1.09 ±0.74
1.28 ±1.05
0.96 ± 0
ND
0.78 ±0
0.69 ± 1
0.72 ± 0
61
74
.02
.96
2a counting
214pb
0.19 ±0.06
0.21 ±0.04
0.22 ± 0.06
0.17 ±0.06
0.17 ±0.05
0.18 ±0.05
ND
ND
0.09 ± 0.06
0.17 ±0.05
0.12 ±0.07
0.18 ±0.10
0.13 ±0.06
0.15 ±0.07
0.16 ±0.06
ND
ND
error)
2.4Bi
0.18 ±0.07
0.17 ±0.06
0.21 ±0.07
ND
0.15 ±0.06
0.17 ±0.06
ND
0.08 ± 0.09
0.13 ±0.08
0.13 ±0.06
ND
0.18±0.12
0.13 ±0.08
0.14 ±0.08
0.15 ±0.07
ND
ND
»su
0.074 ± 0.037
ND
ND
ND
0.081 ±0.032
ND
ND
ND
ND
ND
ND
ND
0.063 ± 0.037
ND
ND
ND
ND
-------
TABLE A.l2-Continiied
Sample ID
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 025-C
PHNC 025-C
PHNC 025-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 043-C
PHNC 043-C
Core Slice
(cm)
30-35
35-40
00-05
05-10
10-16
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
NARELID
98.02075
98.02076
98.02077
98.02078
98.02079
98.02080
98.02081
98.02082
98.02083
98.02084
98.02085
98.02086
98.02087
98.02088
98.02089
98.02877
98.02878
Activity (pCi/g ±
234Th
1.48 ±0.79
ND
ND
ND
ND
0.47 ± 0.66
0.65 ± 0.68
1.03 ±0.77
ND
ND
ND
1.68 ±0.59
0.93 ± 0.80
ND
ND
1.22 ±0.60
0.90 ± 0.63
234mpa
6.68 ±4.60
ND
ND
ND
ND
ND
ND
5.58 ±3.62
ND
ND
ND
ND
ND
3.36 ±2.74
2.55 ±4.85
4.51 ±3.36
4.50 ±3.73
226Ra
0.96 ± 0.90
0.76 ±0.65
0.66 ± 0.94
1.04 ±0.77
1.16±0.60
1.15 ±0.97
1.04 ±0.90
1.06 ±0.93
0.79 ±1.05
0.91 ±0.75
0.85 ±0.91
2.12 ±0.80
1.50 ±0.91
1.21 ±0.61
ND
0.99 ± 0.86
2.07 ± 0.97
2a counting error)
2I4Pb
ND
0.15 ±0.06
0.18 ±0.08
ND
0.16 ±0.06
0.26 ± 0.08
0.28 ± 0.08
0.18 ±0.09
0.19 ±0.10
0.26 ±0.06
0.24 ± 0.09
0.23 ± 0.08
0.25 ± 0.09
0.24 ± 0.05
0.20 ± 0.08
0.22 ± 0.07
0.36 ±0.08
2,4Bi
ND
ND
0.19 ±0.09
ND
ND
0.20 ±0.10
0.23 ± 0.09
0.17 ±0.10
0.19 ±0.12
0.23 ± 0.08
0.18±0.10
0.09 ± 0.09
0.19±0.11
0.20 ± 0.07
0.16±0.10
0.15±0.10
0.31 ±0.10
23SU
0.064 ± 0.054
ND
ND
ND
ND
ND
ND
ND
ND
0.065 ± 0.045
ND
ND
ND
0.076 ± 0.036
0.054 ± 0.049
0.066 ±0.051
ND
-------
TABLE A.12-Continued
Sample ID
PHNC
PHNC
043-C
043-C
PHNC 043-C
PHNC 043-C
PHNC
PHNC
PHNC
PHNC
PHNC
043-C
045-C
045-C
045-C
045-C
PHNC 045-C
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
045-C
045-C
045-C
045-C
045-C
051-C
051-C
Core Slice
(cm)
10-15
15-20
20-25
25-30
30-36
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-54
00-05
05-10
NARELID
98
98
98
98
02879
02880
02881
02882
98.02883
98.02894
98.02895
98.02896
98.02897
98
98
98
98
98
98
98
98
02898
02899
02900
02901
02902
02903
02934
02935
Activity (pCi/g ±
234Th
0.61 ±0.59
ND
ND
ND
0.81 ±0.36
ND
ND
ND
1.37 ±0.40
ND
0.55 ± 0.44
ND
ND
ND
ND
ND
ND
234mT>n
ND
6.91 ±3.20
ND
ND
ND
ND
ND
ND
3.21 ±1.87
ND
ND
ND
ND
ND
ND
ND
ND
226Ra
1.01 ±0.98
1.37 ±0.90
1.43 ±0.83
0.86 ±0.85
1.29 ±0.46
ND
1.70 ±0.71
1.44 ±0.97
0.96 ±0.51
1.46 ±0.62
ND
0.91 ±0.71
1.41 ±0.79
1.54 ±0.75
1.43 ±0.41
1.00 ±0.93
0.45 ± 0.52
2a counting error)
2!4pb
0.22 ± 0.09
0.39 ± 0.06
0.20 ± 0.08
0.22 ± 0.08
0.32 ± 0.04
0.36 ± 0.07
0.35 ± 0.07
0.27 ± 0.07
0.34 ± 0.04
0.28 ± 0.06
0.28 ± 0.05
0.24 ± 0.07
0.22 ± 0.07
0.29 ±0.08
0.30 ± 0.04
0.17 ±0.07
0.15 ±0.04
2UBi
0.17 ±0.11
0.29 ± 0.08
0.19 ±0.09
0.16 ±0.09
0.28 ± 0.05
0.34 ± 0.09
0.25 ± 0.07
0.27 ± 0.07
0.36 ± 0.05
0.24 ± 0.07
0.25 ± 0.06
0.29 ± 0.08
0.24 ± 0.08
0.29 ± 0.08
0.26 ± 0.05
ND
ND
M5U
ND
ND
ND
ND
0.079 ± 0
0.089 ± 0
ND
ND
0.060 ± 0
ND
ND
ND
027
055
030
0.092 ± 0.048
ND
ND
ND
ND
-------
TABLE A.12-Continued
Sample ID
PHNC051-C
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 054-C
PHNC 054-C
Core Slice
(cm)
10-17
00-05
05-10
10-15
15-20
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
NARELID
98.02936
98.02930
98.02931
98.02932
98.02933
98.02884
98.02885
98.02886
98.02887
98.02888
98.02889
98.02890
98.02891
98.02892
98.02893
98.02964
98.02965
Activity (pCi/g ±
234Th
ND
0.95 ±1.07
ND
ND
ND
ND
ND
ND
ND
0.78 ±0.71
ND
ND
ND
ND
0.70 ±0.35
ND
ND
234mpa
ND
ND
ND
ND
ND
5.52 ±3.33
ND
4.06 ±3.27
ND
ND
ND
ND
ND
ND
ND
ND
ND
226Ra
0.65 ±0.41
1.33 ±1.31
0.67 ± 0.44
0.59 ±0.53
0.47 ± 0.50
1.35 ±1.01
1.29±1.15
1.62 ±0.89
1.19 ±1.04
1.29 ±0.91
2.51 ± 1.44
ND
0.89 ± 1.14
1.38±1.18
1.19 ±0.54
1.77±1.12
1.00 ±1.07
2a counting
2!4pb
0.13 ±0.03
0.32 ±0.13
0.09 ± 0.04
0.14 ±0.04
0.12 ±0.04
0.32 ± 0.08
0.32 ±0.11
0.36 ± 0.06
0.26 ± 0.09
0.28 ± 0.08
0.33 ± 0.09
0.36 ±0.10
0.35 ± 0.09
0.37 ± 0.09
0.25 ± 0.05
0.27 ±0.11
0.27 ±0.10
error)
2!4Bj
0.13 ±0.03
0.26 ±0.13
0.08 ± 0.05
0.10 ±0.04
ND
0.33 ±0.10
0.24 ±0.11
0.39 ± 0.08
0.31 ±0.11
0.29 ±0.10
0.39 ±0.11
0.39 ±0.11
ND
0.38 ± 0.09
0.21 ±0.06
0.21 ±0.11
0.19±0.11
23SU
ND
ND
ND
ND
ND
0.088 ± 0.060
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE AA2~Contimied
Sample ID
PHNC
054-C
PHNC 054-C
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
054-C
054-C
054-C
054-C
054-C
054-C
057-C
057-C
057-C
057-C
057-C
057-C
057-C
057-C
068-C
Core Slice
(cm)
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
00-05
NARELID
98.02966
98.02967
98.02968
98.02969
98.02970
98.02971
98.02972
98.02973
98.02937
98.02938
98.02939
98.02940
98.02941
98.02942
98.02943
98.02944
98.02863
Activity (pCi/g ±
234Th
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.20 ±0.61
ND
ND
1.44 ±0.58
ND
ND
234mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.96 ±3.17
ND
ND
226Ra
1.49 ±0.79
0.98 ± 0.87
ND
ND
1.46 ±0.86
ND
1.45 ±1.07
2.17 ±0.77
1.14 ±0.66
1.00 ±0.57
0.88 ±0.78
1.45 ±0.86
1.40±1.13
0.95 ±1.17
0.82 ± 0.83
1.65 ±1.13
0.64 ± 0.90
2a counting
2.4pb
0.39 ± 0.07
0.28 ±0.08
0.24 ±0.11
0.28 ±0.11
0.34 ±0.08
ND
0.33 ± 0.09
0.26 ± 0.07
0.15 ±0.07
0.24 ± 0.04
0.18 ±0.07
0.21 ±0.08
0.25 ± 0.09
0.25 ± 0.08
0.30 ± 0.06
0.29 ± 0.07
0.17 ±0.08
error)
214r
0.32 ±
0.18±
0.
08,
0.09
ND
0.34 ±
0.21 ±
0.21 ±
0.21 ±
0.19 ±
0.11
0.08
0.10
0.10
0.07
ND
0.19 ±
0.18±
0.30 ±
0.24 ±
0.39 ±
0.24 ±
0.27 ±
0.12 ±
0.05
0
0
0
0
0
0
0
08
.09
.11
.09
.09
.08
.09
23SU
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.12~Continued
Sample ID
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
Core Slice
(cm)
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
15-20
NARELID
98.02864
98.02865
98.02866
98.02867
98.02868
98.02869
98.02870
98.02871
98.02872
98.02873
98.02874
98.02875
98.02876
98.02904
98.02905
98.02906
98.02907
Activity (pCi/g ±
234Th
ND
ND
ND
ND
ND
1.29 ±0.63
ND
ND
ND
ND
ND
0.56 ±0.40
ND
ND
ND
ND
ND
234mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
226Ra
2.08 ±1.12
1.59 ±0.85
1.47 ±0.89
1.11 ±0.94
1.36±1.16
1.88 ±0.90
1.41 ± 1.07
1.85 ±0.94
0.96 ±0.69
2.25 ±0.80
1.47 ±0.75
1.20 ±0.63
1.07 ±0.51
1.31 ±1.32
ND
1.98±1.16
1.37 ± 1.01
2a counting
2Npb
0.28 ± 0.09
0.48 ± 0.07
0.28 ± 0.07
0.25 ± 0.09
ND
0.38 ± 0.09
0.29 ±0.08
0.21 ±0.07
0.14 ±0.06
0.33 ± 0.08
0.13 ±0.07
0.23 ± 0.06
0.17 ±0.05
0.23 ±0.12
0.24 ±0.1 2
0.23 ±0.11
0.31 ±0.09
error)
2,4Bi
0.26 ± 0.08
0.46 ± 0.07
0.33 ± 0.07
0.21 ±0.11
0.31 ±0.10
0.42 ±0.10
0.30 ± 0.08
0.19 ±0.08
ND
0.30 ±0.09
ND
0.24 ± 0.07
0.18 ±0.05
0.13±0.13
0.15±0.11
0.19±0.11
0.21 ±0.10
23SU
ND
ND
ND
ND
ND
0.123 ±0.052
ND
ND
ND
ND
0.105 ±0.044
ND
ND
ND
ND
ND
ND
-------
TABLE A.12~Continued
Sample ID
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
Core Slice
(cm)
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-20
20-25
25-30
30-35
NAREL ID
98.02908
98.02909
98.02910
98.02974
98.02975
98.02976
98.02977
98.02978
98.02979
98.02980
98.02989
98.02990
98.02991
98.02992
98.02993
98.02994
98.02995
Activity (pCi/g ± 2a counting error)
234Th
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.75 ± 0.28
ND
ND
ND
ND
ND
ND
ND
234mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
226Ra 214pb 214Bi
1.25±1.11 0.22±0.10 0.19±0.11
1 . 14 ± 0.48 0.2 1 ± 0.05 0.22 ± 0.06
1 .04 ± 0.59 0.24 ± 0.06 0.26 ± 0.06
1.79 ±1.22 0.20 ±0.12 0.15 ±0.12
1.65 ±1.12 0.18±0.11 0.14±0.11
0.79 ±1.14 0.22 ±0.10 0.19 ±0.10
1.55 ±1.02 0.33 ±0.10 0.16±0.10
1 .52 ± 0.93 0.35 ± 0.09 0.25 ± 0.09
1.22 ±1.05 0.35 ±0.10 0.17 ±0.10
1.52 ±0.57 0.36 ±0.04 0.30 ±0.05
1.05 ±1.00 0.28 ±0.10 0.21 ±0.09
0.65 ±1.03 0.29 ±0.10 0.25 ±0.12
1.11 ±0.92 0.29 ±0.08 0.23 ±0.10
0.97 ± 0.94 0.33 ± 0.09 0.40 ± 0.09
1.15 ±0.91 0.21 ±0.09 0.33 ±0.11
1.10 ±0.86 0.32 ±0.09 0.24 ±0.09
0.91 ±0.98 0.31 ±0.09 0.32 ±0.10
235-jj
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE A.12~Continued
Sample ID
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
Core Slice
(cm)
35-40
40-45
45-52
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-48
00-05
05-10
10-15
15-20
20-25
NARELID
98.02996
98.02997
98.02998
98.02921
98.02922
98.02923
98.02924
98.02925
98.02926
98.02927
98.02928
98.02929
98.02945
98.02946
98.02947
98.02948
98.02949
Activity (pCi/g ±
234Th
ND
0.76 ±0.51
ND
1.31 ±0.36
2.03 ± 0.59
ND
ND
ND
ND
0.89 ± 0.62
0.65 ±0.61
ND
ND
ND
ND
ND
1.12 ±0.47
234mpa 226Ra
ND
ND
ND
2.29 ±3.53
2.99 ± 3.33
ND
ND
ND
ND
6.67 ± 3.30
ND
ND
ND
ND
ND
ND
ND
1.14±
1.83±
1.66±
2.24 ±
3.22 ±
2.15±
1.42±
0.78 ±
1.67±
0.87
0.75
0.92
0.59
0.75
0.91
0.86
0.90
0.97
1.05 ±0.86
1.44±
1.85 ±
1.18±
1.16±
0.99 ±
1.65 ±
1.23±
0.82
0.80
0.94
0.82
0.98
0.92
0.67
2a counting
2!4pb
0.26 ± 0.08
0.39 ±0.08
0.47 ± 0.07
0.46 ± 0.06
0.48 ± 0.07
0.25 ± 0.09
0.34 ± 0.09
0.26 ±0.10
0.25 ± 0.09
0.42 ± 0.07
0.30 ±0.06
0.29 ± 0.06
0.28 ± 0.07
ND
0.21 ±0.08
0.14 ±0.08
0.23 ± 0.06
error)
214]
0.24 ±
0.44 ±
0.41 ±
0.47 ±
0.46 ±
0.25 ±
0.28 ±
0.19 ±
0.19 ±
0.32 ±
0.30 ±
0.42 ±
0.18±
0.14 ±
0
.09
0.08
0.07
0
0
.07
.07
0.09
0
09
0.11
0.10
0.08
0.08
0.07
0
0.
09
09
ND
0.14±
0.20 ±
0.
0.
10
07
235U
ND
ND
ND
ND
ND
0.132 ±0.056
ND
ND
ND
ND
ND
ND
0.084 ± 0.055
ND
ND
ND
ND
-------
TABLE A.12-Continued
Sample ID
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
084-C
084-C
086-C
086-C
086-C
086-C
086-C
086-C
086-C
086-C
086-C
089-C
089-C
089-C
089-C
089-C
089-C
Core Slice
(cm)
25-30
30-39
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
00-05
05-10
10-15
15-20
20-25
25-30
NARELID
98
98
98
02950
02951
02955
98.02956
98.02957
98.02958
98.02959
98
02960
98.02961
98
02962
98.02963
98.02999
98.03000
98.03001
98.03002
98.03003
98
03004
Activity (pCi/g ±
234Th
ND
ND
1.08 ±0.62
ND
0.88 ±0.53
1.19 ±0.68
ND
1.05 ±0.41
0.97 ± 0.40
ND
ND
1.20 ±0.58
ND
ND
ND
ND
ND
234mpa
ND
ND
5.71 ±3.65
ND
ND
ND
ND
3.09 ± 2.40
ND
ND
ND
5.96±3.10
ND
ND
ND
ND
ND
226Ra
0.72 ± 0.56
0.97 ±0.61
1.39 ±0.86
0.89 ±0.86
1.10 ±0.84
1.02 ±0.86
1.25 ±0.87
1.46 ±0.63
0.85 ±0.63
1.37 ±0.93
1.14 ±0.98
1.44 ±0.87
0.50 ±0.78
0.51 ±0.67
1.11 ±0.80
0.53 ± 0.72
ND
2a counting
0
0
0
0
0
0
0
0
0
214pb
17 ±0.06
20 ± 0.04
22 ± 0.06
13 ±0.08
14 ±0.08
19 ± 0.08
ND
15 ±0.06
17 ±0.06
20 ± 0.07
ND
0.20 ± 0.06
0.15 ±0.08
0
0
0
15 ±0.05
18 ±0.07
15 ±0.07
0.17 ±0.08
error)
214Bi
0.15 ±0.06
0.20 ± 0.05
ND
0.16 ±0.10
ND
ND
ND
0.23 ± 0.06
0.18 ±0.07
0.16 ±0.07
0.26 ±0.08
0.25 ± 0.08
ND
0.16 ±0.06
ND
0.07 ± 0.08
0.14 ±0.09
23SU
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
•-J
oo
-------
TABLE A.12-Continued
Sample ID
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
089-C
089-C
092-C
092-C
092-C
092-C
092-C
092-C
092-C
092-C
092-C
145-C
145-C
145-C
145-C
145-C
145-C
Core Slice
(cm)
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-49
00-05
05-10
10-15
15-20
20-25
25-30
NARELID
98
98
98
98
98
98
03005
03006
03065
03066
03067
03068
98.03069
98.03070
98.03071
98
03072
98.03073
98
98
98
98
98
.02911
02912
02913
02914
.02915
98.02916
Activity (pCi/g ±
234Th
ND
ND
1.61 ±0.52
ND
ND
ND
ND
ND
ND
ND
1.15 ±0.28
1.23 ±0.56
ND
ND
ND
1.05 ±0.49
ND
"•""Pa
2.90 ±3.82
ND
ND
ND
3.75 ±4.89
ND
2.94 ± 4.25
ND
ND
ND
ND
3.80 ±2.74
ND
ND
3.89 ±2.78
ND
ND
226Ra
ND
0.68 ± 0.62
ND
0.98 ±1.09
ND
1.28 ±0.91
1.07 ±0.69
ND
1.11 ±0.82
1.45 ±0.68
1.46 ±0.64
2.06 ± 0.79
1.24 ±0.75
ND
1.30 ±0.72
1.65 ±0.70
1.05 ±0.91
2a counting
2MPb
0.18 ±0.08
0.18 ±0.05
0.16 ±0.08
0.28 ±0.10
ND
0.19 ±0.09
0.18 ±0.06
0.19 ±0.08
0.20 ± 0.08
ND
0.19 ±0.04
0.38 ±0.06
0.23 ± 0.07
0.29 ±0.10
0.31 ±0.05
0.24 ±0.06
0.37 ± 0.06
error)
2I4Bi
ND
0.15 ±0.05
ND
0.25 ± 0
0.13 ±0
.11
10
0.11 ±0.08
ND
0.10 ±0.08
ND
0.17 ±0.08
0.21 ±0.05
0.28 ± 0.08
0.21 ±0.08
ND
0.31 ±0.07
0.29 ± 0
0.40 ± 0
08
07
235U
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
-------
TABLE All-Continued
Sample ID
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
Core Slice
(cm)
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-29
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
NARELID
98.02917
98.02918
98.02919
98.02920
98.03080
98.03081
98.03082
98.03083
98.03084
98.03085
98.03086
98.03087
98.03088
98.03089
98.03090
98.03091
98.03092
Activity (pCi/g ±
234Th
1.54 ±0.42
ND
ND
ND
ND
ND
ND
0.51 ±0.36
0.72 ± 0.22
0.91 ±0.55
1.16±0.51
0.65 ± 0.43
ND
ND
ND
ND
ND
234mpa
ND
ND
ND
ND
ND
ND
ND
ND
ND
3.94 ± 3.00
4.35 ± 2.49
ND
ND
ND
ND
ND
ND
226Ra
1.56 ±0.64
1.61 ±1.07
1.85 ±0.92
1.54 ±0.62
0.84 ± 0.58
0.92 ± 0.49
0.56 ±0.55
1.35 ±0.48
1.52 ±0.52
1.59 ±0.78
0.90 ±0.68
0.93 ± 0.73
1.05 ±0.64
0.64 ± 0.54
1.27 ±0.54
1.22 ±0.77
1.34 ±0.82
2o counting
2.4pb
0.29 ± 0.06
0.24 ± 0.08
0.36 ±0.07
0.29 ± 0.05
0.20 ± 0.06
0.17 ±0.05
0.18 ±0.06
0.16 ±0.04
0.22 ± 0.04
0.34 ± 0.06
0.38 ± 0.05
0.17 ±0.07
0.12 ±0.06
0.14 ±0.05
0.19 ±0.05
0.14 ±0.06
0.14 ±0.06
error)
2,4Bi
0.31 ±0.07
0.30 ±0.08
0.38 ± 0.08
0.28 ± 0.06
0.1 8 ±0.07
0.17 ±0.05
0.14 ±0.06
0.13 ±0.05
0.18 ±0.04
0.33 ± 0.08
0.25 ± 0.07
0.14 ±0.08
ND
0.11 ±0.05
0.27 ± 0.06
ND
0.22 ± 0.06
23SU
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.080 ±0.032
ND
ND
-------
TABLE All-Continued
Sample ID
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
147-C
147-C
147-C-DU
147-C-DU
147-C-DU
147-C-DU
147-C-DU
147-C-DU
147-C-DU
147-C-DU
148-C
148-C
148-C
148-C
148-C
148-C
148-C
Core Slice
(cm)
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-42
00-05
05-10
10-15
15-20
20-25
25-30
30-35
NARELID
98.03093
98.03094
98.03095
98.03096
98.03097
98.03098
98.03099
98.03100
98.03101
98.03102
98.03103
98.03104
98.03105
98.03106
98.03107
98.03108
98.03109
Activity (pCi/g ±
234Th
ND
0.82 ±0.22
1.29 ±0.68
ND
ND
1.07 ±0.63
ND
1.61 ±0.43
ND
1.49 ±0.38
ND
ND
ND
0.97 ± 0.46
ND
ND
ND
"•""Pa
ND
ND
3.25 ±3.13
ND
4.02 ± 3.77
ND
ND
ND
ND
ND
ND
3.35 ±3.55
ND
ND
ND
ND
ND
226Ra
1.13 ±0.69
1.59 ±0.50
1.48 ±0.91
1.75 ±0.86
1.36 ±0.86
2.03 ±0.91
1.47 ±0.78
1.81 ±1.25
1.81 ±1.08
1.44 ±0.74
1.41 ±0.88
1.05 ±0.76
1.54 ±0.61
1.27 ±0.60
1.24 ±0.83
1.10 ±0.85
0.99 ± 0.78
2a counting
214pb
0.24 ± 0.05
0.23 ± 0.04
0.41 ±0.07
0.33 ± 0.07
0.33 ± 0.07
0.27 ±0.08
0.26 ± 0.07
0.29 ± 0.09
0.24 ± 0.09
0.34 ±0.06
0.28 ± 0.08
0.19 ±0.07
0.27 ± 0.06
0.27 ± 0.06
0.23 ± 0.08
0.26 ± 0.08
0.27 ± 0.08
error)
214]
0.24 ±
0.20 ±
0.36 ±
0.31 ±
0.27 ±
0.26 ±
0.19±
0.29 ±
0.18±
0.26 ±
0.19 ±
0.16±
0.25 ±
0.24 ±
0.22 ±
0.25 ±
0.22 ±
3i
0.06
0
0
0
.04
.09
09
0.08
0
08
0.07
0.09
0.10
0.06
0.08
0.07
0
0
0.
0.
06
06
08
09
0.08
23SU
ND
ND
ND
0.1 12 ±0.052
0.088 ±0.051
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
oo
-------
TABLE \.l2-Continued
Sample ID
PHNC
PHNC
PHNC
148-C
148-C
148-C
BACKGROUND
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
109-C-BK
109-C-BK
109-C-BK
109-C-BK
109-C-BK
109-C-BK
Core Slice
(cm)
35-40
40-45
45-52
SAMPLES
00-05
05-10
10-15
15-20
20-25
25-34
NARELID
98
03110
98.03111
98
98
03112
Activity (pCi/g ±
234Th
ND
ND
1.56 ±0.35
03074
98.03075
98
98
03076
03077
98.03078
98.03079
ND
ND
0.86 ±0.61
0.88 ±0.45
1.02 ±0.43
ND
234mpa
ND
ND
3. 80 ±2.38
ND
ND
ND
ND
4.14 ±2.06
ND
1
1
1
0
1
1
1
1
1
226Ra
01 ±0.98
21 ±0.80
47 ± 0.48
78±1.17
02 ±1.00
.06 ±0.79
12 ±0.68
.18 ±0.55
.16±0.75
2cv counting
2,4pb
0.22 ± 0.09
0.23 ± 0.07
0.24 ± 0.04
ND
0.18 ±0.09
0.13 ±0.07
0.19 ±0.06
0.24 ± 0.04
0.21 ±0.05
error)
2,4B-
ND
0.25 ± 0.08
0.24 ± 0.05
ND
ND
0.11 ±0.08
0.28 ± 0.07
0.24 ± 0.06
0.25 ± 0.06
235U
ND
ND
ND
ND
ND
ND
ND
0.073 ± 0.033
ND
oo
K>
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.13
Gamma Spectrometry Results for Sediment Core Samples
Thorium Decay Chain
Sample ID
Core
Slice
(cm)
NARELID
Activity (pCi/g ± 2a counting error)
228Ra
2WRa
2l2Pb
212Bi
208^pi
STUDY SAMPLES
PHNC001-C
PHNC001-C
PHNC001-C
PHNC001-C
PHNC 001-C
PHNC001-C
PHNC 001-C
PHNC 001-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC010-C
PHNC010-C
PHNC010-C
PHNC010-C
PHNC016-C
PHNC016-C
PHNC016-C
PHNC016-C
PHNC016-C
PHNC016-C
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-23
00-05
05-10
10-15
15-20
20-25
25-30
98.02981
98.02982
98.02983
98.02984
98.02985
98.02986
98.02987
98.02988
98.02034
98.02035
98.02036
98.02037
98.02038
98.02039
98.02040
98.02041
98.02042
98.02043
98.02044
98.02045
98.02046
98.02047
98.02048
98.02049
98.02050
ND
ND
0.26 ±0.09
0.27 ± 0.09
ND
ND
0.22 ± 0.06
0.21 ±0.05
ND
ND
ND
ND
ND
ND
0.12 ±0.04
ND
ND
0.14 ±0.05
0.14 ±0.05
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.24 ±0.29
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.22 ±0.06
0.20 ±0.06
0.19 ±0.07
0.30 ±0.09
0.28 ± 0.06
0.23 ± 0.06
0.20 ±0.04
0.19 ±0.05
0.06 ±0.04
0.05 ± 0.03
0.09 ±0.03
0.05 ±0.03
0.04 ± 0.03
0.07 ±0.02
0.10 ±0.04
0.11 ±0.03
0.13 ±0.03
0.16 ±0.03
0.16 ±0.04
0.03 ± 0.04
0.04 ± 0.04
0.06 ± 0.02
0.08 ±0.05
0.04 ± 0.04
0.06 ± 0.04
ND
ND
ND
ND
ND
ND
0.28 ±0.21
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.15 ±0.23
ND
ND
ND
ND
ND
ND
ND
0.04 ± 0.04
0.08 ±0.03
0.05 ± 0.04
0.07 ± 0.04
0.08 ±0.03
0.07 ±0.03
0.07 ±0.03
0.06 ±0.02
ND
ND
0.01 ± 0.02
0.02 ± 0.02
0.03 ± 0.02
0.02 ± 0.02
0..02 ± 0.02
0.03 ±0.02
0.04 ± 0.02
0.05 ± 0.02
0.05 ± 0.02
ND
ND
0.02 ± 0.02
0.03 ± 0.03
0.02 ± 0.03
0.03 ± 0.03
83
-------
TABLE A.l3~Continued
Sample ID
PHNC016-C
PHNC016-C
PHNC 019-C
PHNC019-C
PHNC 019-C
PHNC 019-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C-
DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 025-C
PHNC 025-C
Core
Slice
(cm)
30-35
35-42
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
00-05
05-10
NARELID
98.02051
98.02052
98.02053
98.02054
98.02055
98.02056
98.02057
98.02058
98.02059
98.02060
98.02061
98.02062
98.02063
98.02064
98.02065
98.02066
98.02067
98.02068
98.02069
98.02070
98.02071
98.02072
98.02073
98.02074
98.02075
98.02076
98.02077
98.02078
Activity (pCi/g ± 2a counting error)
228Ra
ND
ND
ND
ND
0.26 ± 0.05
0.23 ± 0.05
ND
ND
0.13 ±0.06
ND
ND
0.13 ±0.07
0.12 ±0.07
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
224Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.53 ±0.55
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
212Pb
ND
0.05 ± 0.03
0.08 ± 0.04
0.06 ± 0.04
0.28 ± 0.05
0.26 ± 0.05
0.14 ±0.08
0.12 ±0.06
0.13 ±0.04
0.11 ±0.05
0.15 ±0.06
0.12 ±0.05
0.13 ±0.04
0.09 ± 0.06
0.07 ± 0.06
0.07 ± 0.06
0.13 ±0.05
0.08 ± 0.06
0.18 ±0.09
0.06 ± 0.05
0.14 ±0.06
0.10 ±0.06
ND
0.15 ±0.09
0.11 ±0.08
0.09 ± 0.05
0.11 ±0.07
0.07 ± 0.07
212Bi
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.30 ±0.28
ND
ND
ND
ND
ND
ND
ND
ND
0.46 ± 0.38
ND
ND
208T,
0.03 ± 0.03
0.02 ± 0.02
ND
0.02 ± 0.02
0.09 ± 0.02
0.07 ± 0.02
0.06 ± 0.05
0.03 ± 0.04
0.04 ± 0.03
0.02 ± 0.03
0.03 ± 0.04
0.04 ± 0.03
0.03 ± 0.03
ND
0.03 ± 0.04
0.03 ± 0.04
0.02 ± 0.03
0.05 ± 0.03
0.06 ± 0.06
ND
ND
0.03 ± 0.04
0.04 ± 0.04
0.07 ± 0.05
ND
0.03 ± 0.04
ND
0.06 ± 0.05
84
-------
TABLE A.13~Continued
Sample ID
PHNC 025-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
Core
Slice
(cm)
10-16
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
15-20
20-25
25-30
30-36
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-54
NARELID
98.02079
98.02080
98.02081
98.02082
98.02083
98.02084
98.02085
98.02086
98.02087
98.02088
98.02089
98.02877
98.02878
98.02879
98.02880
98.02881
98.02882
98.02883
98.02894
98.02895
98.02896
98.02897
98.02898
98.02899
98.02900
98.02901
98.02902
98.02903
Activity (pCi/g ± 2a counting error)
228Ra
0.13 ±0.07
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.19 ±0.09
ND
ND
0.18 ±0.05
0.20 ± 0.09
ND
ND
ND
ND
ND
0.18±0.10
0.22 ± 0.09
0.26 ±0.11
0.23 ± 0.06
224Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.36 ±0.32
ND
ND
ND
ND
ND
ND
ND
ND
0.54 ±0.58
ND
212pb
0.11 ±0.05
0.12 ±0.07
0.16 ±0.07
0.13 ±0.08
0.12 ±0.08
0.16 ±0.05
0.15 ±0.08
0.10 ±0.07
0.22 ± 0.08
0.10 ±0.05
0.21 ±0.08
0.14 ±0.07
0.23 ± 0.07
0.18 ±0.07
0.19 ±0.07
0.16 ±0.08
0.21 ±0.08
0.15 ±0.03
0.16 ±0.07
0.15 ±0.06
0.23 ± 0.08
0.20 ± 0.04
0.19 ±0.05
0.16 ±0.05
0.20 ± 0.06
0.14 ±0.07
0.23 ± 0.06
0.16 ±0.04
212Bi
ND
ND
0.60 ±0.47
ND
ND
ND
ND
ND
ND
ND
ND
0.43 ±0.37
ND
ND
ND
0.48 ± 0.43
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.30 ±0.22
208qii
0.04 ± 0.03
0.05 ± 0.05
0.04 ±0.05
0.04 ± 0.05
0.09 ±0.06
0.02 ± 0.04
0.05 ± 0.04
0.06 ± 0.04
0.04 ± 0.05
0.04 ± 0.04
0.09 ± 0.05
ND
0.05 ± 0.06
0.03 ± 0.05
0.06 ± 0.05
0.05 ± 0.05
0.09 ± 0.06
0.06 ± 0.03
0.05 ± 0.05
0.06 ±0.04
0.07 ±0.04
0.06 ± 0.03
0.06 ± 0.03
0.05 ± 0.03
0.04 ± 0.04
0.05 ± 0.04
0.06 ±0.05
0.05 ± 0.02
85
-------
TABLE A.13~Continued
Sample ID
PHNC051-C
PHNC051-C
PHNC051-C
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 057-C
Core
Slice
(cm)
00-05
05-10
10-17
00-05
05-10
10-15
15-20
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
NARELID
98.02934
98.02935
98.02936
98.02930
98.02931
98.02932
98.02933
98.02884
98.02885
98.02886
98.02887
98.02888
98.02889
98.02890
98.02891
98.02892
98.02893
98.02964
98.02965
98.02966
98.02967
98.02968
98.02969
98.02970
98.02971
98.02972
98.02973
98.02937
Activity (pCi/g ± 2a counting error)
228Ra
ND
ND
ND
ND
ND
0.12 ±0.05
ND
ND
0.28 ±0.1 5
0.20 ±0.09
ND
ND
ND
ND
ND
ND
0.17 ±0.07
ND
ND
ND
0.23 ±0.1 2
ND
ND
ND
ND
0.22 ±0.14
0.21 ±0.08
0.20 ±0.08
224Ra
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
212Pb
0.08 ±0.08
0.11 ±0.04
0.04 ±0.03
0.16±0.13
0.11 ±0.04
0.10 ±0.04
0.05 ± 0.04
0.22 ±0.08
0.22 ±0.10
0.21 ±0.07
0.31 ±0.08
0.15±0.08
0.18±0.10
0.11 ±0.10
0.14 ±0.08
0.22 ± 0.09
0.19 ±0.04
0.22 ±0.10
0.20 ±0.09
0.21 ±0.07
0.21 ±0.08
0.20 ±0.10
0.20 ±0.11
0.22 ±0.08
0.19 ±0.08
0.22 ± 0.09
0.19 ±0.07
0.16 ±0.06
212Bi
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.29 ± 0.27
0.38 ±0.73
ND
ND
0.42 ± 0.57
0.44 ±0.63
ND
ND
ND
ND
ND
ND
208^1
0.04 ± 0.05
0.04 ± 0.02
0.03 ± 0.02
0.07 ±0.08
0.03 ± 0.03
0.03 ± 0.02
0.02 ± 0.02
0.07 ± 0.06
0.05 ± 0.06
0.07 ± 0.05
0.09 ± 0.06
0.05 ± 0.05
0.07 ± 0.06
0.09 ± 0.05
0.07 ± 0.05
0.06 ± 0.05
0.05 ± 0.03
0.04 ± 0.06
0.07 ±0.06
0.05 ± 0.04
0.06 ± 0.05
0.08 ± 0.07
0.10 ±0.06
0.04 ±0.05
ND
0.04 ±0.06
0.08 ± 0.04
0.03 ± 0.04
86
-------
TABLE A.13~Continued
Sample ID
PHNC 057-C
PHNC.057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
Core
Slice
(cm)
05-10
10-15
15-20
20-25
25-30
30-35
35-40
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
15-20
20-25
25-30
30-35
NARELID
98.02938
98.02939
98.02940
98.02941
98.02942
98.02943
98.02944
98.02863
98.02864
98.02865
98.02866
98.02867
98.02868
98.02869
98.02870
98.02871
98.02872
98.02873
98.02874
98.02875
98.02876
98.02904
98.02905
98.02906
98.02907
98.02908
98.02909
98.02910
Activity (pCi/g ± 2a counting error)
228Ra
0.14 ±0.06
0.22 ±0.09
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.20 ±0.09
ND
ND
0.14 ±0.06
ND
ND
ND
ND
ND
0.15 ±0.07
ND
224Ra
0.45 ± 0.45
ND
0.52 ±0.51
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
1.03 ±0.74
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
212pb
0.17 ±0.04
0.17 ±0.06
0.21 ±0.07
0.14 ±0.09
0.15 ±0.09
0.19 ±0.07
0.21 ±0.09
0.11 ±0.07
0.10 ±0.08
0.13 ±0.08
0.14 ±0.07
0.12 ±0.08
0.11±0.10
0.27 ±0.07
0.11 ±0.08
0.19 ±0.08
0.10 ±0.05
0.19 ±0.07
0.14 ±0.07
0.10 ±0.05
0.12 ±0.05
0.15±0.11
0.23 ±0.11
0.14±0.10
0.1 8 ±0.09
0.17 ±0.09
0.18 ±0.05
0.16 ±0.05
2I2Bi
ND
0.38 ±0.30
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.55 ±0.34
0.75 ± 0.34
ND
ND
ND
ND
ND
ND
ND
ND
208^1
0.05 ± 0.03
0.05 ± 0.04
0.04 ± 0.05
0.09 ± 0.05
0.06 ± 0.05
0.06 ± 0.05
0.07 ± 0.04
ND
0.06 ±0.05
0.04 ± 0.04
0.06 ± 0.03
0.04 ±0.05
ND
0.05 ± 0.06
0.05 ± 0.05
0.07 ± 0.05
0.04 ± 0.04
0.06 ± 0.04
0.04 ± 0.04
0.04 ± 0.03
0.05 ± 0.03
0.05 ± 0.07
0.09 ± 0.06
0.06 ± 0.06
0.06 ± 0.06
0.06 ± 0.06
0.05 ± 0.03
0.06 ± 0.03
87
-------
TABLE A.13-Continued
Sample ID
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 084-C
PHNC 084-C
Core
Slice
(cm)
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-52
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-48
00-05
05-10
NARELED
98.02974
98.02975
98.02976
98.02977
98.02978
98.02979
98.02980
98.02989
98.02990
98.02991
98.02992
98.02993
98.02994
98.02995
98.02996
98.02997
98.02998
98.02921
98.02922
98.02923
98.02924
98.02925
98.02926
98.02927
98.02928
98.02929
98.02945
98.02946
Activity (pCi/g ± 2a counting error)
228Ra
ND
ND
ND
0.25 ±0.13
0.23 ±0.12
ND
ND
0.20 ±0.1 3
ND
ND
ND
ND
ND
ND
0.23 ±0.10
ND
ND
0.21 ±0.07
0.12 ±0.09
ND
ND
0.16±0.13
ND
ND
ND
0.20 ±0.08
ND
ND
224Ra
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
0.75 ±0.82
2,2pb
0.26 ±0.11
0.15±0.10
0.14 ±0.09
0.19±0.10
0.21 ±0.08
0.1 8 ±0.09
0.17 ±0.04
0.13 ±0.08
0.31 ±0.09
0.16 ±0.07
0.21 ±0.07
0.15 ±0.07
0.14 ±0.08
0.23 ± 0.09
0.14 ±0.07
0.30 ±0.06
0.27 ±0.07
0.17 ±0.05
0.15 ±0.07
0.16 ±0.08
0.16 ±0.08
0.25 ± 0.09
0.14 ±0.08
0.17 ±0.07
0.16 ±0.07
0.19 ±0.07
0.15 ±0.07
0.12 ±0.07
212Bi
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.45 ± 0.38
ND
ND
ND
0.28 ± 0.40
0.55 ± 0.58
ND
0.45 ±0.58
ND
ND
ND
ND
ND
ND
208jii
0.05 ± 0.07
0.05 ± 0.06
0.04 ± 0.06
0.06 ±0.06
0.05 ± 0.06
0.07 ± 0.06
0.06 ± 0.03
0.05 ± 0.05
ND
0.06 ± 0.05
0.06 ±0.05
0.07 ± 0.05
0.08 ± 0.05
0.07 ±0.06
0.06 ± 0.05
0.06 ± 0.05
0.05 ± 0.04
0.05 ± 0.03
0.06 ± 0.04
0.07 ± 0.05
0.06 ± 0.04
0.09 ± 0.06
0.06 ±0.05
0.03 ± 0.05
0.05 ± 0.05
0.04 ± 0.04
0.03 ± 0.05
0.04 ± 0.04
88
-------
TABLE A.l3»Continued
Sample ID
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
Core
Slice
(cm)
10-15
15-20
20-25
25-30
30-39
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
NAREL ID
98.02947
98.02948
98.02949
98.02950
98.02951
98.02955
98.02956
98.02957
98.02958
98.02959
98.02960
98.02961
98.02962
98.02963
98.02999
98.03000
98.03001
98.03002
98.03003
98.03004
98.03005
98.03006
98.03065
98.03066
98.03067
98.03068
98.03069
98.03070
Activity (pCi/g ± 2a counting error)
228Ra
ND
ND
ND
0.12 ±0.07
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
224Ra
ND
ND
0.63 ± 0.60
ND
ND
ND
ND
ND
ND
ND
0.48 ± 0.46
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
212pb
0.15 ±0.09
0. 1 1 ± 0.07
0.16 ±0.06
0.13 ±0.05
0.11 ±0.05
ND
0.10 ±0.08
0.14 ±0.06
0.17±0.08
0.15 ±0.08
0.15 ±0.05
0.13 ±0.05
0.09 ±0.07
0.08 ± 0.07
0.15 ±0.06
0.12 ±0.07
0.05 ± 0.06
0.08 ±0.06
0.13 ±0.06
0.14 ±0.08
0.12 ±0.08
0.11 ±0.05
0.15 ±0.07
0.10 ±0.09
0.07 ± 0.09
0.14 ±0.08
0.14 ±0.05
0.12 ±0.08
2I2Bi
ND
ND
ND
ND
ND
0.41 ±0.37
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.48 ±0.41
ND
ND
ND
ND
ND
ND
0.43 ± 0.45
20Snri
0.04 ± 0.06
0.06 ± 0.05
0.05 ± 0.04
0.03 ± 0.03
0.05 ± 0.03
ND
ND
0.03 ± 0.04
0.04 ± 0.05
ND
0.04 ± 0.04
0.02 ± 0.04
0.05 ± 0.04
0.05 ± 0.04
0.05 ± 0.05
0.04 ±0.05
0.04 ± 0.03
ND
0.04 ±0.04
ND
0.07 ± 0.05
0.02 ±0.03
0.03 ± 0.05
ND
ND
0.04 ±0.05
0.03 ± 0.04
0.03 ±0.05
89
-------
TABLE A.13~Continued
Sample ID
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
Core
Slice
(cm)
30-35
35-40
40-49
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-29
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
NARELID
98.03071
98.03072
98.03073
98.02911
98.02912
98.02913
98.02914
98.02915
98.02916
98.02917
98.02918
98.02919
98.02920
98.03080
98.03081
98.03082
98.03083
98.03084
98.03085
98.03086
98.03087
98.03088
98.03089
98.03090
98.03091
98.03092
98.03093
98.03094
Activity (pCi/g ± 2
-------
TABLE A.l3-Continued
Sample ID
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
BACKGROUND
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
Core
Slice
(cm)
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-42
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-52
SAMPLES
00-05
05-10
10-15
15-20
20-25
25-34
NARELID
98.03095
98.03096
98.03097
98.03098
98.03099
98.03100
98.03101
98.03102
98.03103
98.03104
98.03105
98.03106
98.03107
98.03108
98.03109
98.03110
98.03111
98.03112
Activity (pCi/g ± 2a counting error)
228Ra
ND
0.18 ±0.09
ND
ND
0.24 ±0.11
ND
ND
ND
ND
ND
0.16 ±0.07
0.11 ±0.08
0.22 ±0.11
ND
ND
ND
ND
ND
98.03074
98.03075
98.03076
98.03077
98.03078
98.03079
ND
ND
ND
ND
ND
ND
224Ra
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.45 ±0.37
ND
ND
ND
ND
ND
0.60 ±0.59
2.:pb
0.20 ±0.07
0.19 ±0.07
0.19 ±0.06
0.19 ±0.07
0.1 8 ±0.06
0.12 ±0.08
0.12 ±0.09
0.12 ±0.06
0.20 ±0.08
0.16 ±0.07
0.13 ±0.05
0.13 ±0.05
0.15 ±0.08
0.14 ±0.08
0.12 ±0.07
0.21 ±0.09
0.11 ±0.07
0.16 ±0.04
O.lliO.ll
0.20 ±0.10
0.12 ±0.07
0.12 ±0.05
0.11 ±0.04
0.15 ±0.05
212Bi
ND
ND
ND
0.85 ±0.61
ND
ND
ND
ND
ND
ND
0.24 ±0.36
ND
0.36 ±0.47
ND
ND
ND
0.32 ±0.40
ND
ND
ND
ND
ND
ND
ND
ZOS'-pi
0.04 ±0.05
0.03 ±0.05
0.03 ± 0.04
0.06 ±0.05
0.05 ± 0.04
0.09 ±0.05
0.06 ± 0.05
0.07 ±0.03
0.08 ±0.05
0.03 ± 0.04
0.02 ±0.03
0.04 ± 0.03
0.05 ± 0.05
0.08 ±0.05
0.07 ±0.05
0.06 ± 0.06
ND
0.05 ± 0.03
ND
ND
0.04 ± 0.04
0.02 ± 0.04
0.03 ± 0.03
0.05 ± 0.03
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.14
Gamma Spectrometry Results for Sediment Core Samples
Other Gamma-Ray Emitting Radionuclides
Sample ID
Core
Slice
(cm)
NARELID
Activity (pCi/g ±
60Co
7Be
2a counting error)
I37Cs 40K
STUDY SAMPLES
PHNC 001-C
PHNC001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC010-C
PHNC 010-C
PHNC010-C
PHNC 010-C
PHNC 016-C
PHNC016-C
PHNC 016-C
PHNC 016-C
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-23
00-05
05-10
10-15
15-20
98.02981
98.02982
98.02983
98.02984
98.02985
98.02986
98.02987
98.02988
98.02034
98.02035
98.02036
98.02037
98.02038
98.02039
98.02040
98.02041
98.02042
98.02043
98.02044
98.02045
98.02046
98.02047
98.02048
< 0.056
< 0.066
< 0.069
< 0.076
< 0.054
< 0.062
< 0.038
< 0.040
< 0.040
< 0.036
< 0.033
< 0.029
< 0.040
< 0.024
< 0.039
< 0.041
< 0.028
< 0.027
< 0.041
< 0.045
< 0.045
< 0.031
< 0.050
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND 2.3 ± 0.5
ND 2.2 ± 0.4
0.038 ± 0.026 2.3 ± 0.4
ND 2.3 ± 0.4
ND 1.9 ±0.3
0.027 ±0.024 2.1 ±0.4
ND 1.9 ±0.4
0.035 ±0.017 1.9 ±0.3
0.025 ±0.015 0.8 ±0.3
ND 0.9 ± 0.3
0.010 ±0.011 0.8 ±0.3
ND 0.8 ± 0.2
0.018 ±0.012 1.0 ±0.3
0.008 ±0.008 1.0 ±0.2
ND 1.4 ±0.2
0.038 ±0.016 1.8 ±0.3
0.033 ±0.012 1.5 ±0.2
0.025 ±0.014 1.8 ±0.3
0.042 ± 0.019 2.4 ± 0.3
0.033 ±0.01 8 1.0 ±0.4
0.022 ±0.016 1.2 ±0.4
0.017 ±0.011 0.9 ±0.2
0.037 ±0.017 1.4 ±0.4
92
-------
TABLE A.14-Continued
Sample ID
PHNC 016-C
PHNC016-C
PHNC 016-C
PHNC 016-C
PHNC 019-C
PHNC 019-C
PHNC 019-C
PHNC 019-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
Core
Slice
(cm)
20-25
25-30
30-35
35-42
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
00-05
05-10
10-15
15-20
20-25
25-30
NARELID
98.02049
98.02050
98.02051
98.02052
98.02053
98.02054
98.02055
98.02056
98.02057
98.02058
98.02059
98.02060
98.02061
98.02062
98.02063
98.02064
98.02065
98.02066
98.02067
98.02068
98.02069
98.02070
98.02071
98.02072
98.02073
98.02074
Activity (pCi/g ±
60Co
< 0.049
< 0.055
< 0.059
< 0.033
< 0.036
< 0.036
< 0.037
0.022 ±0.013
< 0.074
< 0.064
< 0.049
< 0.061
< 0.057
< 0.050
< 0.042
< 0.088
< 0.071
< 0.077
< 0.054
< 0.063
< 0.085
< 0.066
< 0.072
< 0.066
< 0.081
< 0.084
7Be
ND
ND
ND
ND
0.19±0.12
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
0.29 ± 0.27
0.46 ±0.31
ND
ND
ND
ND
ND
ND
ND
ND
ND
2a counting error)
137Cs 40K
0.034 ±0.01 6 1.2 ±0.4
0.023 ±0.018 1.2 ±0.4
0.029 ±0.021 1.2 ±0.4
0.031 ±0.014 1.4 ±0.3
ND 1.3 ±0.3
0.025 ±0.017 1.6 ±0.3
ND 3.5 ±0.3
ND 2.5 ± 0.3
ND 2.0 ±0.6
0.040 ± 0.023 2.3 ± 0.5
0.039 ±0.019 2.3 ±0.4
0.036 ± 0.020 2.3 ± 0.4
0.031 ±0.023 1.9 ±0.5
0.022 ± 0.019 2.2 ± 0.4
0.019 ±0.020 1.8 ±0.4
ND 2.1 ±0.6
0.025 ±0.025 1.7 ±0.5
0.039 ±0.025 1.8 ±0.5
0.055 ±0.024 1.7 ±0.4
0.037 ±0.021 2.2 ±0.5
0.058 ±0.033 2.6 ±0.7
0.046 ± 0.022 2.2 ± 0.5
0.027 ± 0.028 2.3 ± 0.6
0.048 ±0.030 2.4 ±0.5
0.052 ± 0.037 2.7 ± 0.6
ND 2.9 ±0.7
93
-------
TABLE A.l4--Continued
Sample ID
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 025-C
PHNC 025-C
PHNC 025-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
Core
Slice
(cm)
30-35
35-40
00-05
05-10
10-16
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
15-20
20-25
25-30
30-36
00-05
05-10
10-15
15-20
NARELID
98.02075
98.02076
98.02077
98.02078
98.02079
98.02080
98.02081
98.02082
98.02083
98.02084
98.02085
98.02086
98.02087
98.02088
98.02089
98.02877
98.02878
98.02879
98.02880
98.02881
98.02882
98.02883
98.02894
98.02895
98.02896
98.02897
Activity (pCi/g ±
60Co
< 0.095
< 0.063
< 0.079
< 0.085
< 0.057
< 0.087
< 0.077
< 0.087
< 0.096
0.073 ±0.019
< 0.084
< 0.076
0.045 ± 0.022
0.063 ±0.019
0.056 ±0.021
< 0.088
< 0.087
< 0.087
< 0.077
< 0.082
< 0.077
0.081 ±0.013
< 0.081
< 0.082
< 0.077
< 0.045
7Be
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
2a counting error)
137Cs "°K
0.067 ± 0.034 2.8 ± 0.7
0.024 ± 0.022 2.2 ± 0.5
0.071 ±0.032 2.8 ±0.7
0.070 ± 0.036 2.6 ± 0.6
0.038 ± 0.020 2.6 ± 0.4
ND 2.5 ± 0.7
ND 2.9 ±0.6
0.051 ±0.036 2.8 ±0.7
0.040 ± 0.035 2.8 ± 0.7
0.037 ±0.025 2.8 ±0.5
0.038 ± 0.027 3.2 ± 0.6
0.059 ± 0.027 3.0 ± 0.6
0.039 ±0.030 2.9 ±0.6
0.028 ±0.023 2.1 ±0.4
0.042 ±0.028 3.0 ±0.6
0.036 ±0.031 2.9 ±0.6
ND 3.8 ±0.7
ND 3.6 ±0.7
0.048 ± 0.034 3.4 ± 0.6
ND 2.9 ±0.6
ND 3.1 ±0.6
0.046 ±0.016 2.9 ±0.4
0.037 ±0.033 3.0 ±0.6
0.035 ±0.021 3.0 ±0.5
ND 2.8 ± 0.4
0.018 ±0.017 2.9 ±0.3
94
-------
TABLE A.14»Continued
Sample ID
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC051-C
PHNC051-C
PHNC051-C
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
Core
Slice
(cm)
20-25
25-30
30-35
35-40
40-45
45-54
00-05
05-10
10-17
00-05
05-10
10-15
15-20
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
NARELID
98.02898
98.02899
98.02900
98.02901
98.02902
98.02903
98.02934
98.02935
98.02936
98.02930
98.02931
98.02932
98.02933
98.02884
98.02885
98.02886
98.02887
98.02888
98.02889
98.02890
98.02891
98.02892
98.02893
98.02964
98.02965
98.02966
Activity (pCi/g ±
60Co
< 0.064
< 0.057
< 0.063
0.052 ± 0.020
< 0.090
< 0.050
< 0.085
< 0.046
< 0.035
< 0.093
0.030 ±0.011
< 0.039
< 0.048
0.073 ± 0.028
0.069 ± 0.030
0.035 ± 0.020
< 0.084
< 0.097
0.077 ± 0.033
0.079 ± 0.036
0.1 10 ±0.033
< 0.098
0.049 ±0.0 16
< 0.081
0.091 ±0.028
< 0.074
7Be
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
2a counting error)
137Cs 40K
ND 2.9 ±0.5
0.018 ±0.018 2.8 ±0.4
ND 3.2 ±0.5
0.030 ±0.028 2.8 ±0.6
0.059 ±0.031 3.9 ±0.6
0.043 ±0.015 3.1 ±0.3
ND 2.4 ±0.5
ND 3.1 ±0.3
0.020 ±0.014 2.4 ±0.2
ND 4.2 ± 0.8
ND 2.2 ±0.3
ND 2.7 ±0.3
ND 2.5 ±0.3
0.067 ± 0.035 3.7 ± 0.7
0.086 ±0.033 3.8 ±0.7
0.057 ±0.027 4.1 ±0.6
0.074 ±0.038 3.6 ±0.7
0.066 ±0.030 3.6 ±0.7
ND 4.0 ±0.6
0.075 ± 0.044 3.7 ± 0.7
0.094 ± 0.049 3.8 ± 0.6
0.066 ±0.035 3.6 ±0.6
0.068 ±0.021 3.6 ±0.4
0.052 ±0.032 3.9 ±0.7
0.046 ±0.030 4.4 ±0.7
0.063 ± 0.024 3.9 ± 0.6
95
-------
TABLE &.\4~Continued
Sample ID
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
Core
Slice
(cm)
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
NARELID
98.02967
98.02968
98.02969
98.02970
98.02971
98.02972
98.02973
98.02937
98.02938
98.02939
98.02940
98.02941
98.02942
98.02943
98.02944
98.02863
98.02864
98.02865
98.02866
98.02867
98.02868
98.02869
98.02870
98.02871
98.02872
98.02873
Activity (pCi/g ±
60Co
0.041 ±0.023
0.060 ±0.037
0.089 ±0.037
0.054 ± 0.027
0.049 ±0.037
0.055 ± 0.034
0.036 ± 0.024
0.056 ±0.018
0.047 ±0.01 5
0.054 ± 0.022
0.051 ±0.024
0.102 ±0.033
0.062 ± 0.032
0.084 ± 0.024
0.085 ±0.030
< 0.085
< 0.090
< 0.072
0.045 ± 0.024
< 0.097
0.037 ± 0.030
0.071 ±0.027
0.060 ± 0.030
0.070 ± 0.027
0.056 ±0.020
0.052 ±0.021
7Be
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
2a counting error)
137Cs 40K
0.060 ±0.031 4.2 ±0.6
0.061 ±0.038 3.1 ±0.8
ND 3.3 ±0.7
0.079 ±0.027 4.1 ±0.6
ND 4.1 ±0.7
0.054 ±0.039 4.0 ±0.7
0.043 ±0.026 3.6 ±0.5
0.026 ±0.027 3.2 ±0.5
0.040 ±0.019 3.3 ±0.4
0.042 ± 0.023 3.3 ± 0.5
ND 4.1 ±0.7
0.043 ± 0.040 4.0 ± 0.6
ND 4.1 ±0.6
0.038 ± 0.035 3.4 ± 0.6
ND 3.2 ±0.5
ND 2.9 ±0.6
ND 3.3 ±0.5
ND 3.1 ±0.4
ND 3.2 ±0.5
0.039 ±0.036 3.1 ±0.7
0.042 ± 0.043 2.9 ± 0.6
0.063 ± 0.037 4.3 ± 0.7
0.029 ± 0.029 3.7 ± 0.5
0.041 ±0.039 4.0 ±0.5
0.022 ± 0.023 2.3 ± 0.5
0.049 ± 0.029 3.6 ± 0.6
96
-------
TABLE A.14~Continued
Sample ID
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
Core
Slice
(cm)
35-40
40-45
45-50
00-05
05-10
10-15
15-20
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
NARELID
98.02874
98.02875
98.02876
98.02904
98.02905
98.02906
98.02907
98.02908
98.02909
98.02910
98.02974
98.02975
98.02976
98.02977
98.02978
98.02979
98.02980
98.02989
98.02990
98.02991
98.02992
98.02993
98.02994
98.02995
98.02996
98.02997
Activity (pCi/g ±
60Co
0.040 ± 0.020
< 0.062
< 0.054
< 0.084
0.071 ±0.032
0.055 ± 0.028
0.049 ± 0.029
< 0.080
< 0.040
< 0.055
0.055 ± 0.030
0.036 ± 0.027
0.047 ± 0.029
0.032 ± 0.033
0.073 ± 0.025
< 0.083
0.027 ±0.016
0.061 ±0.029
< 0.097
< 0.074
< 0.087
< 0.082
0.084 ± 0.025
0.041 ±0.024
0.037 ±0.021
< 0.088
7Be
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
2or counting error)
137Cs 40K
0.031 ±0.032 3.2 ±0.6
0.033 ± 0.023 2.4 ± 0.5
0.022 ±0.017 2.6 ±0.4
0.047 ±0.037 3.6 ±0.8
0.045 ±0.035 3.8 ±0.8
ND 3.4 ± 0.7
0.034 ±0.032 3.6 ±0.7
ND 2.9 ±0.7
0.027 ±0.016 2.9 ±0.4
0.035 ±0.018 3.0 ±0.4
ND 3.8 ±0.8
0.036 ±0.035 3.5 ±0.7
0.035 ±0.030 3.5 ±0.7
0.066 ±0.034 3.6 ±0.7
0.031 ±0.030 3.8 ±0.6
0.047 ±0.040 3. 3 ±0.7
0.046 ±0.015 3.7 ±0.3
0.052 ± 0.029 3.8 ± 0.6
0.030 ±0.033 4.2 ±0.7
ND 3.1 ±0.7
ND 3.9 ±0.7
ND 3.7 ±0.7
ND 3.9 ±0.7
0.046 ±0.035 3.9 ±0.7
0.037 ±0.031 3.7 ±0.6
0.045 ±0.031 4.4 ±0.6
97
-------
TABLE A.l4~Continued
Sample ID
PHNC 076-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
Core
Slice
(cm)
45-52
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-48
00-05
05-10
10-15
15-20
20-25
25-30
30-39
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
NARELID
98.02998
98.02921
98.02922
98.02923
98.02924
98.02925
98.02926
98.02927
98.02928
98.02929
98.02945
98.02946
98.02947
98.02948
98.02949
98.02950
98.02951
98.02955
98.02956
98.02957
98.02958
98.02959
98.02960
98.02961
98.02962
98.02963
Activity (pCi/g ±
60Co
0.052 ± 0.024
< 0.053
< 0.065
< 0.066
< 0.091
< 0.089
< 0.071
< 0.070
< 0.063
< 0.057
< 0.089
< 0.079
< 0.087
< 0.087
< 0.068
< 0.053
< 0.051
< 0.083
< 0.091
< 0.080
< 0.073
< 0.086
< 0.064
< 0.055
< 0.064
< 0.068
7Be
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
2a counting error)
137Cs 40K
ND 4.3 ±0.5
ND 2.6 ±0.5
ND 2.8 ± 0.5
ND 3.2 ±0.6
ND 3.4 ± 0.6
ND 2.8 ±0.7
ND 3.6 ±0.7
0.030 ±0.027 3.5 ±0.6
ND 3.2 ±0.6
0.037 ± 0.028 3.7 ± 0.4
0.057 ±0.035 3.9 ±0.6
0.043 ± 0.027 2.6 ± 0.6
0.041 ±0.034 3.1 ±0.7
0.074 ±0.030 3.1 ±0.6
0.072 ±0.028 3.1 ±0.5
0.037 ± 0.020 2.3 ± 0.4
0.048 ±0.019 2.2 ±0.3
0.035 ±0.035 3.1 ±0.6
0.030 ± 0.029 2.8 ± 0.6
0.032 ±0.028 3.4 ±0.6
0.050 ±0.026 2.3 ±0.6
0.039 ±0.037 3.2 ±0.7
0.039 ±0.027 3.0 ±0.5
0.038 ±0.021 2.9 ±0.5
0.051 ±0.034 3.0 ±0.4
0.041 ±0.031 3.0 ±0.5
98
-------
TABLE A.14~Continued
Sample ID
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
Core
Slice
(cm)
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-49
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
NARELID
98.02999
98.03000
98.03001
98.03002
98.03003
98.03004
98.03005
98.03006
98.03065
98.03066
98.03067
98.03068
98.03069
98.03070
98.03071
98.03072
98.03073
98.02911
98.02912
98.02913
98.02914
98.02915
98.02916
98.02917
98.02918
98.02919
Activity (pCL/g ±
60Co
< 0.072
< 0.066
< 0.061
< 0.077
< 0.073
< 0.068
< 0.062
< 0.050
< 0.078
< 0.078
< 0.081
< 0.069
< 0.064
< 0.067
< 0.072
< 0.071
< 0.043
0.046 ± 0.023
< 0.064
< 0.092
0.060 ± 0.020
< 0.075
< 0.067
0.046 ±0.019
0.078 ± 0.030
0.053 ± 0.027
7Be
0.54 ± 0.49
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
2a counting error)
I37Cs 40K
0.035 ±0.026 3.3 ±0.5
0.042 ±0.026 2.9 ±0.6
ND 1.9 ±0.3
ND 2.4 ±0.4
0.052 ±0.026 2. 5 ±0.5
0.081 ±0.038 3.1 ±0.6
0.060 ±0.029 3.2 ±0.6
0.046 ±0.021 2. 7 ±0.3
0.046 ±0.032 3.3 ±0.7
0.058 ± 0.044 2.9 ± 0.7
0.049 ±0.034 3.2 ±0.7
0.081 ±0.031 2.3 ±0.6
0.078 ±0.023 2.9 ±0.5
0.054 ±0.031 2.6 ±0.5
0.076 ±0.032 2.3 ±0.5
0.057 ±0.024 3.0 ±0.5
0.059 ±0.022 2.6 ±0.3
0.057 ±0.027 4.4 ±0.5
0.025 ±0.023 4.1 ±0.6
ND 3.7 ±0.7
0.022 ±0.022 4.1 ±0.5
0.029 ± 0.024 4.2 ± 0.6
0.049 ±0.030 4.1 ±0.5
0.043 ±0.026 4.0 ±0.5
ND 3.9 ±0.5
0.062 ±0.033 4.0 ±0.6
99
-------
TABLE A.14»Continued
Sample ID
PHNC 145-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 148-C
PHNC 148-C
Core
Slice
(cm)
45-53
00-05
05-10
10-15
15-20
20-29
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-42
00-05
05-10
NARELID
98.02920
98.03080
98.03081
98.03082
98.03083
98.03084
98.03085
98.03086
98.03087
98.03088
98.03089
98.03090
98.03091
98.03092
98.03093
98.03094
98.03095
98.03096
98.03097
98.03098
98.03099
98.03100
98.03101
98.03102
98.03103
98.03104
Activity (pCi/g ±
60Co
0.071 ±0.019
< 0.057
< 0.052
< 0.048
< 0.038
< 0.038
0.041 ±0.019
0.068 ±0.0 18
< 0.069
< 0.058
< 0.053
< 0.056
< 0.074
< 0.068
< 0.059
< 0.044
< 0.086
< 0.072
< 0.070
< 0.067
< 0.052
0.046 ± 0.028
< 0.094
0.034 ± 0.020
0.036 ± 0.023
0.094 ± 0.026
7Be
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
2a counting error)
137Cs 40K
0.041 ±0.022 4.0 ±0.4
0.042 ±0.020 1.8 ±0.4
0.022 ±0.020 1.7 ±0.4
0.040 ±0.020 1.5 ±0.4
0.022 ±0.018 1.2 ±0.3
0.038 ±0.019 1.5 ±0.2
0.022 ±0.022 3.6 ±0.5
0.041 ± 0.025 3.5 ± 0.5
ND 3.3 ±0.5
ND 3.3 ± 0.5
ND 3.3 ± 0.4
ND 3.5 ± 0.4
ND 4.1 ±0.5
ND 3.7 ±0.4
ND 3.3 ±0.4
ND 3.4 ±0.3
0.035 ± 0.029 4.6 ± 0.6
0.043 ± 0.028 3.5 ± 0.6
0.048 ±0.024 4.1 ±0.6
ND 3.9 ± 0.5
ND 3.3 ±0.5
ND 3.8 ± 0.6
ND 3.5 ±0.6
0.060 ± 0.028 3.8 ± 0.4
ND 3.1 ±0.5
ND 2.5 ±0.5
100
-------
TABLE A.14~Continued
Sample ID
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
BACKGROUND
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
Core
Slice
(cm)
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-52
SAMPLES
00-05
05-10
10-15
15-20
20-25
25-34
NARELID
98.03105
98.03106
98.03107
98.03108
98.03109
98.03110
98.03111
98.03112
Activity (pCi/g
60Co
0.037 ± 0.014
0.037 ±0.016
0.063 ± 0.029
0.073 ±0.031
0.035 ± 0.027
0.156 ±0.038
0.078 ± 0.028
0.128 ±0.017
98.03074
98.03075
98.03076
98.03077
98.03078
98.03079
< 0.083
< 0.088
< 0.067
< 0.073
< 0.053
< 0.062
7Be
ND
ND
ND
ND
ND
ND
ND
ND
0.87 ± 0
ND
ND
ND
ND
ND
± 2a counting error)
137Cs 40K
0.024 ±0.01 5 2.4 ±0.4
0.027 ±0.019 2.6 ±0.4
0.031 ±0.031 2.8 ±0.6
0.028 ± 0.029 2.7 ± 0.6
0.051 ±0.029 2.6 ±0.5
0.035 ±0.035 3.6 ±0.7
0.053 ± 0.033 2.4 ± 0.5
0.030 ±0.021 2.9 ±0.4
85 0.070 ± 0.042 3.3 ± 0.7
0.029 ± 0.033 2.7 ± 0.7
0.063 ±0.027 2.7 ±0.6
0.088 ± 0.027 2.9 ± 0.5
0.089 ± 0.020 2.8 ± 0.4
0.080 ±0.026 3.1 ±0.4
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.15
Gross Alpha and Gross Beta Activity Results for
Sediment Core Samples
Sample ID
Core
Slice
(cm)
NARELID
Activity
(pCi/g ± 2a counting error)
Gross Alpha
Gross Beta
STUDY SAMPLES
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 001-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 007-C
PHNC 010-C
PHNC010-C
PHNC 010-C
PHNC 010-C
PHNC016-C
PHNC 016-C
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-23
00-05
05-10
98.02981
98.02982
98.02983
98.02984
98.02985
98.02986
98.02987
98.02988
98.02034
98.02035
98.02036
98.02037
98.02038
98.02039
98.02040
98.02041
98.02042
98.02043
98.02044
98.02045
98.02046
15.4±7.1
17.6 ±7.7
14.2 ±7.1
10.7 ±6.0
14.2 ±7.2
6. 8 ±5.4
17.5 ±8. 8
17.2 ±7.4
9.3 ±6.0
10.3 ±6.7
6.3 ±5.7
11.3±6.4
6.3 ±5.2
8.4 ±5.9
5. 8 ±5.2
4.9 ±4.8
9.6 ±6.3
8. 8 ±7.6
10.5 ±6.3
5.2 ±4.7
6.0 ±5.4
11.4±3.1
11.9±3.2
13.0 ±3.3
11.4±3.0
14.6 ±3.4
9.2 ±2.9
10.0 ±3.2
9.0 ±3.0
8.3 ±2.9
10.3 ±3.2
8.2 ±2.9
10.3 ±3.0
8.4 ±2.8
4.7 ±2.5
5.2 ±2.5
5. 8 ±2.7
9.9 ±3.0
9.7±3.1
9.2 ±2. 8
8.3 ±2.7
8.0 ±2.8
102
-------
TABLE A.15~Continued
Sample ID
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 016-C
PHNC 019-C
PHNC 019-C
PHNC 019-C
PHNC 019-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 020-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C
PHNC 022-C-DU
Core
Slice
(cm)
10-15
15-20
20-25
25-30
30-35
35-42
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
00-05
05-10
10-15
15-20
20-25
00-05
NARELID
98.02047
98.02048
98.02049
98.02050
98.02051
98.02052
98.02053
98.02054
98.02055
98.02056
98.02057
98.02058
98.02059
98.02060
98.02061
98.02062
98.02063
98.02064
98.02065
98.02066
98.02067
98.02068
98.02069
Activity
(pCi/g ± 2a counting error)
Gross Alpha
9.2 ± 6.3
8.9 ±5.8
8.5 ±6.2
8.7 ±6.4
11.1±6.5
14.5 ±7.0
11.7±6.8
6.8 ±5.5
6.7 ±5.8
8.1 ±6.2
12.3 ±6.5
10.9 ±6.3
10.4 ±6.1
10.6 ±6.3
5.6 ±5.1
10.6 ±6.3
14.1 ±8.4
3.4 ±4.2
12.5 ±7.3
8.5 ±6.0
7.7 ±6.8
4.2 ±4.2
11.7±6.1
Gross Beta
11.1±3.1
9.7 ±3.0
10.9 ±3.2
10.3 ±3.1
12.3 ±3.1
13.9 ±3.2
10.4 ±3.0
9.5 ±2.9
9.2 ±3.0
10.1 ±3.1
10.0 ±3.0
9.3 ±2.9
10.5 ±3.0
9.4 ±2.9
7.3 ±2.8
6.7 ±2.8
6.2 ±2.8
12.3 ±3.1
13.8 ±3.4
11.8±3.1
7.3 ±2.9
9.0 ±2.9
9.0 ±2.8
103
-------
TABLE A.15~Continued
Sample ID
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 022-C-DU
PHNC 025-C
PHNC 025-C
PHNC 025-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 030-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
Core
Slice
(cm)
05-10
10-15
15-20
20-25
25-30
30-35
35-40
00-05
05-10
10-16
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
NARELID
98.02070
98.02071
98.02072
98.02073
98.02074
98.02075
98.02076
98.02077
98.02078
98.02079
98.02080
98.02081
98.02082
98.02083
98.02084
98.02085
98.02086
98.02087
98.02088
98.02089
98.02877
98.02878
98.02879
Activity
(pCi/g ± 2a counting error)
Gross Alpha
4.7 ±4.9
6.3 ±5.2
13.7 ±7.0
16.7 ±8.0
6.2 ±5.2
8.1 ±6.1
6.0 ±5.6
9.7 ±6.0
7.4 ±5.3
6.4 ±5.7
3.1 ±4.4
6.4 ±5.9
8.8 ±5.8
11.4 ±7.6
2.9 ±4.3
9.6 ± 6.4
3.0 ±4.7
4.4 ±4.8
6.7 ±5.1
2.3 ±4.6
4.8 ±4.7
10.4 ±6.3
7.0 ±5.3
Gross Beta
8.1 ±2.8
10.8 ±3.1
11.5 ±3.2
11.1 ±3.2
13.3 ±3.2
10.6 ±3.2
7.6 ±3.0
5.1 ±2.6
7.9 ±2.8
8.2 ±2.9
7.3 ±2.7
6.6 ±2.7
6.6 ±2.8
9.1 ±3.0
10.4 ±3.0
6.8 ±2.9
6.7 ±3.0
7.1 ±2.8
4.3 ±2.5
8.1 ±2.8
8.7 ±2.9
6.8 ±2.9
8.3 ±2.8
104
-------
TABLE A.15~Continued
Sample ID
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 043-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC 045-C
PHNC051-C
PHNC051-C
PHNC051-C
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC051-C-DU
PHNC 053-C
PHNC 053-C
Core
Slice
(cm)
15-20
20-25
25-30
30-36
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-54
00-05
05-10
10-17
00-05
05-10
10-15
15-20
00-05
05-10
NARELID
98.02880
98.02881
98.02882
98.02883
98.02894
98.02895
98.02896
98.02897
98.02898
98.02899
98.02900
98.02901
98.02902
98.02903
98.02934
98.02935
98.02936
98.02930
98.02931
98.02932
98.02933
98.02884
98.02885
Activity
(pCi/g ± 2a counting error)
Gross Alpha
12.3 ±7.7
2.9 ±4.1
10.3 ±6.2
5.5 ±5.1
6.3 ± 5.2
4.3 ±4.8
7.7 ±5.5
4.8 ± 4.6
3.6 ±4.3
8.5 ±5.6
1.2 ±5.2
6.9 ±5.2
10.3 ±6.2
2.4 ±4.1
10.9 ±6.3
2.4 ±4.8
1.4 ±4.4
4.2 ±4.9
4.3 ± 4.4
2.7 ±4.5
5.0 ±4.6
2.4 ±4.6
9.5 ±6.2
Gross Beta
6.0 ±2.8
7.9 ±2.7
12.4±3.1
7.3 ±2.8
7.8 ±2.7
6.5 ±2.8
6.3 ±2.7
6.1 ±2.6
8.0 ±2.9
7.5 ±2.8
8.0 ±2.9
7.8 ±2.7
6.5 ±2.7
8.9 ±2.9
7.5 ±2.9
5.0 ±2.7
5.2 ±2.7
10.1 ±2.9
9.0 ±2.8
7.8 ±2.8
6.4 ±2.6
7.6 ±2.8
7.3 ±2.8
105
-------
TABLE A.15-Continued
Sample ID
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 053-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 054-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 057-C
Core
Slice
(cm)
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
NARELID
98.02886
98.02887
98.02888
98.02889
98.02890
98.02891
98.02892
98.02893
98.02964
98.02965
98.02966
98.02967
98.02968
98.02969
98.02970
98.02971
98.02972
98.02973
98.02937
98.02938
98.02939
98.02940
98.02941
Activity
(pCi/g ± 2a counting error)
Gross Alpha
3.0 ±4.3
1.2±4.1
12.3 ±7.0
11.2±6.8
-0.3 ±3.7
8.8 ±6.0
5.1 ±4.9
6.1 ±5.2
6.0 ±6.4
7.1 ±5.7
7.6 ±6.1
10.8 ±7.9
4.1 ±5.8
5.0 ±6.5
2.6 ±4.0
3.0 ±3.4
4.7 ±4.7
2.9 ±5.0
8.5 ±5.7
7.9 ±5.7
1.5 ±4.5
0.3 ±5.0
1.9 ±3.9
Gross Beta
10.5 ±3.0
7.0 ±2.8
7.4 ±2.9
10.9 ±3.2
6.6 ±2.7
6.5 ±2.7
8.7 ±2.8
6.8 ±2.7
4.2 ±3.6
3. 8 ±3. 8'
6.2 ±3.6
8.7 ±3.7
8.1 ±3.5
10.5 ±3.7
9.7 ±3.0
7.0 ±2.8
10.8 ±3.4
7.2 ±2.9
7.5 ±2.8
9.3 ±3.0
7.4 ±2.8
5.5 ±2.7
8.6 ±2.7
106
-------
TABLE A.15~Continued
Sample ID
PHNC 057-C
PHNC 057-C
PHNC 057-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 068-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 072-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
PHNC 074-C
Core
Slice
(cm)
25-30
30-35
35-40
00-05
05-10
10-15
15-21
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
00-05
05-10
10-15
15-20
20-25
25-30
NARELID
98.02942
98.02943
98.02944
98.02863
98.02864
98.02865
98.02866
98.02867
98.02868
98.02869
98.02870
98.02871
98.02872
98.02873
98.02874
98.02875
98.02876
98.02904
98.02905
98.02906
98.02907
98.02908
98.02909
Activity
(pCi/g ± 2a counting error)
Gross Alpha
4.1 ±4.8
4.0 ±4.6
0.3 ±4.0
1.7 ±4.0
10.4 ±6.0
0.5 ±4.1
3.0 ±4.2
3.9 ±4.9
7.7 ±5.9
6.7 ±5. 8
7.1 ±5. 8
6.1 ±5.4
4.4 ±4.7
4.8 ±4.9
0.6 ±3.9
8.5 ±6.0
8.2 ±6.1
6.5 ±5.0
8.9 ±5.5
6.0 ±5.5
9.9 ±6.4
7.4 ±5.5
-0.1 ±3.6
Gross Beta
5.6 ±2.6
10.8 ±3.1
6.9 ±2.8
9.6 ±2.9
8.6 ±2. 8
9.5 ±2.9
8.1 ±2.8
5.8 ±2.7
9.9 ±3.1
6.2 ±2.9
5.3 ±2.8
7.0 ±2.8
7.1 ±2.7
6.1 ±2.7
5.7 ±2.7
5.0 ±2.7
5.4 ±2.8
6.5 ±2.6
7.3 ±2.8
4.2 ±2.6
6.0 ±2.8
5.7 ±2.7
7.7 ±2.9
107
-------
TABLE A.15»Continued
Sample ID
PHNC 074-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 075-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 076-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
Core
Slice
(cm)
30-35
00-05
05-10
10-15
15-20
20-25
25-30
30-38
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-52
00-05
05-10
10-15
15-20
20-25
NARELID
98.02910
98.02974
98.02975
98.02976
98.02977
98.02978
98.02979
98.02980
98.02989
98.02990
98.02991
98.02992
98.02993
98.02994
98.02995
98.02996
98.02997
98.02998
98.02921
98.02922
98.02923
98.02924
98.02925
Activity
(pCi/g ± 2o counting error)
Gross Alpha
2.8 ±4.0
7.9 ±7.4
2.4 ±3.9
4.3 ±4.3
7.2 ±5.5
9.7 ±6.1
4.1 ±5.6
2.6 ±4.8
2.2 ±3. 8
10.2 ±6.2
5.2 ±4.7
7.9 ±5.6
5.2 ±5.0
6.5 ±5.0
6.0 ±5.2
4.6 ±4.8
4.8 ± 6.2
7.8 ±5.5
9.3 ±6.0
9.1 ±6.0
7.6 ±5.4
8.3 ±5.9
7.9 ±5.4
Gross Beta
7.5 ±2.8
6.0 ±2.9
7.3 ±2.8
7.4 ±2.8
7.8 ±2.8
5.8 ±2.8
5.8 ±2.8
4.7 ±2.6
6.5 ±2.6
9.0 ±3.0
8.7 ±2.9
10.7 ±3.1
8.1 ±2.8
11.9±3.0
5.7 ±2.7
8.5 ±2.9
8.7 ±2.9
6.6 ±2.6
7.1 ±2.8
9.1 ±2.8
8.2 ±2.8
8.5 ±3.0
8.0 ±2.9
108
-------
TABLE A.15~Continued
Sample ID
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 080-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 084-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 086-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
Core
Slice
(cm)
25-30
30-35
35-40
40-48
00-05
05-10
10-15
15-20
20-25
25-30
30-39
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
00-05
05-10
10-15
NARELID
98.02926
98.02927
98.02928
98.02929
98.02945
98.02946
98.02947
98.02948
98.02949
98.02950
98.02951
98.02955
98.02956
98.02957
98.02958
98.02959
98.02960
98.02961
98.02962
98.02963
98.02999
98.03000
98.03001
Activity
(pCi/g ± 2a counting error)
Gross Alpha
6.7 ±6.7
1.7 ±3.9
9.2 ± 6.2
12.2 ±6.9
9.9 ±6.3
7.0 ±5.7
6.6 ±6.5
3.9 ±4.6
4.5 ±5.2
2.7 ±6.3
3.4 ±5.6
1.4 ±5.6
4.1 ±7.0
5.0 ±4.2
3.9 ±4.3
-1.4±3.5
5.7 ±7.0
5.7 ±4.7
5.0 ±4.8
5.2 ±4.9
0.9 ±3.3
3.1 ±3.9
2.5 ±4.1
Gross Beta
10.8 ±3.1
9.0 ±2.9
8.8 ±3.0
10.8 ±3.1
8.9 ±2.9
10.0 ±3.0
6.4 ±3.6
5.9 ±3.6
8.2 ±3.6
8.3 ±3.5
5.1 ±3.2
8.1 ±3.4
8.1 ±3.4
7.1 ±2.7
5.9 ±2.7
7.4 ±2.8
5.8 ±3.0
6.9 ±2.7
6.3 ±2.7
7.2 ±3.0
6.8 ±2.6
6.4 ±2.7
5.2 ±2.6
109
-------
TABLE A.15-Continued
Sample ID
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 089-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 092-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
PHNC 145-C
Core
Slice
(cm)
15-20
20-25
25-30
30-35
35-44
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-49
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
NARELID
98.03002
98.03003
98.03004
98.03005
98.03006
98.03065
98.03066
98.03067
98.03068
98.03069
98.03070
98.03071
98.03072
98.03073
98.02911
98.02912
98.02913
98.02914
98.02915
98.02916
98.02917
98.02918
98.02919
Activity
(pCi/g ± 2cr counting error)
Gross Alpha
7.0 ±6.7
4.5 ±4.6
6.2 ±5.0
7.5 ±5.6
4.0 ±4.6
10.5 ±6.1
-0.5 ±4.1
5.6 ±5.7
0.7 ±3.5
7.9 ±5.9
8.6 ±5.9
4.5 ±6.4
5. 8 ±5.0
3.5 ±4.1
5.7 ±5.0
7.3 ±5.7
7.7 ±5. 5
3.5 ±6.0
7.8 ±5.3
1.0±3.1
7.2 ±5.8
8.9 ±6.7
10.9 ±7.2
Gross Beta
5.2 ±2.7
5. 7 ±2.6
6.8 ±2.6
5.5 ±2.7
8.2 ±2.9
6.1 ±2.7
7.6 ±2.9
5. 8 ±2.7
5.1 ±2.6
5. 8 ±2.9
7.3 ±2.8
6.5 ±2.8
5.1 ±2.5
5.7 ±2.5
6.8 ±2.7
7.1 ±2.9
6.3 ±2.7
7.2 ±2.9
7.1 ±2.7
9.3 ±2.8
8.4 ±2.9
7.5 ±3.0
7.2 ±2.9
110
-------
TABLE A.15~Continued
Sample ID
PHNC 145-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 146-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
PHNC 147-C-DU
Core
Slice
(cm)
45-53
00-05
05-10
10-15
15-20
20-29
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-53
00-05
05-10
10-15
15-20
20-25
25-30
30-35
NARELID
98.02920
98.03080
98.03081
98.03082
98.03083
98.03084
98.03085
98.03086
98.03087
98.03088
98.03089
98.03090
98.03091
98.03092
98.03093
98.03094
98.03095
98.03096
98.03097
98.03098
98.03099
98.03100
98.03101
Activity
(pCi/g ± 2a counting error)
Gross Alpha
7.5 ±5.6
8.8 ±6.5
11.3±6.6
7.5 ±5.5
4.6 ±4.9
9.6 ±6.3
13. 8 ±6.7
9.0 ±6.2
4.3 ±4.4
0.3 ±3.5
3.3 ±4.3
5. 5 ±4.9
8.0 ±7.3
5.9 ±4.8
5.7±5.1
5.0 ±4.5
5.8 ±5.3
9.3 ± 7.0
1.5 ±6.9
3. 8 ±7.5
6.0 ±6.1
6.8 ±5.7
5.5 ±5.1
Gross Beta
8.6 ±2.9
9.9 ±3.1
10.1 ±3.1
6.6 ±2.9
8.9 ±2.9
7.0 ±2.8
7.7 ±2.8
6.1 ±2.7
4.1 ±2.5
5.7 ±2.6
5.2 ±2.6
5.4 ±2.7
6.6 ±2.8
7.0 ±2.7
7.7 ±2.7
7.1 ±2.7
7.0 ±2.8
8.0 ±3.6
5.8 ±3.6
7.3 ±3.5
9.0 ±3.2
6.1 ±3.2
8.0 ±3.3
111
-------
TABLE A.l5-Continued
Sample ID
PHNC 147-C-DU
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
PHNC 148-C
BACKGROUND
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
PHNC 109-C-BK
Core
Slice
(cm)
35-42
00-05
05-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-52
SAMPLES
00-05
05-10
10-15
15-20
20-25
25-34
NARELID
98.03102
98.03103
98.03104
98.03105
98.03106
98.03107
98.03108
98.03109
98.03110
98.03111
98.03112
Activity
(pCi/g ± 2o counting error)
Gross Alpha
6.3 ±5.2
1.3 ±3.2
2.3 ±5.2
4.9 ±4.3
3. 8 ±3.9
0.7 ±3.4
4.7 ±4.8
1.5 ±3. 8
3.7±5.1
5.9 ±4.9
1.2 ±3.6
98.03074
98.03075
98.03076
98.03077
98.03078
98.03079
6.6 ±5.5
7.3 ±5.8
8.3 ±5.7
5.4 ±5.2
4.5 ±4.7
1.4±5.1
Gross Beta
8.3 ±2.8
8.1 ±2.7
6.1 ±2.5
8.3 ±2.5
7.0 ±2.4
7.3 ±2.6
6.4 ±2.6
6.8 ±2.5
8.8 ±2.8
7.0 ±2.6
3.9 ±2.2
6.5 ±2.8
6.6 ±2.8
7.1 ±2.8
7.1 ±2.9
5.7 ±2.7
7.8 ±2.9
112
-------
TABLE A.16
Average Gross Alpha and Gross Beta Concentrations for Core Samples
Sample ID
Average Concentration
(pCi/g ± 2 Standard Deviations)
Gross Alpha
Gross Beta
Study Samples
PHNC 001-C
PHNC 007-C
PHNC 010-C
PHNC 016-C
PHNC 019-C
PHNC 020-C
PHNC 022-C
PHNC 022-C-DU
PHNC 025-C
PHNC 030-C
PHNC 043-C
PHNC 045-C
PHNC051-C
PHNC051-C-DU
PHNC 053-C
PHNC 054-C
PHNC 057-C
PHNC 068-C
PHNC 072-C
PHNC 074-C
PHNC 075-C
14.2 ±7.6
8.2 ±4.3
8.5 ±4.9
9.0 ±5.8
8.3 ±4.7
10.6 ±5.2
7.3 ±7.4
9.2 ±8.7
7.9 ±3.4
5.9 ±6.5
7.6 ±6.9
5.6 ±5.7
4.9 ±10.5
4.0 ± 1.9
5.9 ±8.7
5.4±5.1
3.6 ±6.4
3.9 ±8.9
5.8 ±4.8
5.9 ±7.0
5. 5 ±5.6
11.3±3.8
7.9 ± 4.4
8.6 ±3. 8
10.6 ±4.0
9.8 ±1.1
8.5 ±3.4
10.8 ±5.3
10.3 ±3.7
7.1 ±3.4
7.3 ±3.3
8.2 ±4.1
7.4 ± 1.9
5.9 ±2.8
8.3 ±3.2
7.9 ±3.2
7.6 ±4.9
7.7 ±3.6
9.0 ±1.5
6.4 ±2.9
6.4 ±2.5
6.4 ±2.3
113
-------
TABLE A.16-Continued
Sample ID
PHNC 076-C
PHNC 080-C
PHNC 084-C
PHNC 086-C
PHNC 089-C
PHNC 092-C
PHNC 145-C
PHNC 146-C
PHNC 147-C
PHNC 147-C-DU
PHNC 148-C
Average Concentration
(pCi/g ± 2 Standard Deviations)
Gross Alpha
6.0 ±4.4
8.0±5.7
5.4±5.1
3.8 ±4.8
4.5 ±4.6
5.2 ±7.2
6.8 ±5.6
8.4 ±5.0
6.1 ±7.2
5.6 ±4.5
3.0 ±3.7
Gross Beta
8.4 ±3.8
8.9 ±2.4
7.5 ±3.6
7.0±1.7
6.2 ±2.1
6.1 ± 1.8
7.5 ±1.9
8. 5 ±3.3
6.3 ±2.3
7.4 ±2.2
7.0 ±2.8
Background Samples
PHNC 109-C-BK
5.6 ±4.9
6.8 ±1.4
114
-------
TABLE A.17
Gamma Spectrometry Results for Biota Samples
Sample ID NAREL ID
Activity (pCi/gwet ± 2a
60Co
7Be
137Cs
40K
counting error)
212pb
208yi
234JI
1
STUDY SAMPLES
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
PHNC
001-BSP
010-BSP
016-BSP
022-BSP
022-BSP-DU
025-BSP
030-BSP
045-BSP
075-BSP
PHNC 084-BSP
PHNC
PHNC
089-BSP
092-BSP
98.02301
98.02032
98.02030
98.02028
98.02029
98.02033
98.02031
98.02227
98.02228
98.02229
98.02337
98.02338
< 0.003
< 0.003
< 0.004
< 0.004
< 0.003
< 0.004
< 0.004
< 0.004
< 0.008
< 0.003
< 0.004
< 0.004
0.028 ±
0.049 ±
0.032 ±
0.050 ±
0.048 ±
0.049 ±
0.035 ±
0.032 ±
0.033 ±
0.026 ±
0.042 ±
0.044 ±
0.015
0.012
0.017
0.015
0.016
0.016
0.015
0.015
0.028
0.014
0.017
0.017
ND
ND
ND
ND
ND
ND
ND
ND
0.003 ± 0.003
ND
ND
ND
0.83 ± 0.04
0.88 ±0.03
0.96 ± 0.04
1.01 ±0.04
1.05 ±0.04
0.95 ± 0.04
0.93 ± 0.04
0.91 ± 0.04
0.76 ± 0.08
0.85 ± 0.03
0.81 ±0.04
0.91 ±0.04
ND
ND
ND
ND
ND
ND
ND
0.005 ± 0.004
ND
ND
ND
ND
ND
ND
ND
0.002 ± 0.002
ND
ND
ND
ND
0.004 ± 0.003
ND
ND
ND
0.18±0
ND
ND
.05
0.17 ±0.04
0.16±0
ND
ND
ND
0.14 ±0.
ND
ND
ND
05
05
BACKGROUND SAMPLES
PHNC
PHNC
109-BSP-BK
109-BSP-DU-BK
98.02303
98.02302
< 0.004
< 0.004
0.013 ±
0.014
ND
ND
ND
0.94 ± 0.04
0.94 ± 0.04
ND
ND
ND
ND
ND
ND
Note: "ND" indicates the radionuclide was not detected by gamma spectrometry. "
-------
TABLE A.18
Gross Alpha and Gross Beta Activity Results for Biota Samples
Sample ID
NARELID
Activity
(pCi/gash ± 2a counting error)
Gross Alpha
Gross Beta
STUDY SAMPLES
PHNC 001-BSP
PHNC010-BSP
PHNC016-BSP
PHNC 022-BSP
PHNC 022-BSP-DU
PHNC 025-BSP
PHNC 030-BSP
PHNC 045-BSP
PHNC 075-BSP
PHNC 084-BSP
PHNC 089-BSP
PHNC 092-BSP
98.02301
98.02032
98.02030
98.02028
98.02029
98.02033
98.02031
98.02227
98.02228
98.02229
98.02337
98.02338
2.2 ±3.9
1.0 ±4.0
3.1 ±4.9
2.0 ±4.3
-0.5 ±3.6
1.3 ±4.3
1.7 ±4.4
0.7 ±3.8
4.9 ±4.6
3.7 ±4.8
1.5 ±4.1
10.3 ±6.1
5.3 ±2.6
2.8 ±2.4
6.3 ±2.8
7.0 ±2.8
3.9 ±2.6
4.6 ±2.5
5.2 ±2.6
7.5 ±2.7
6.6 ±2.6
5.7 ±2.7
2.9 ±2.4
5.0 ±2.6
BACKGROUND SAMPLES
PHNC 109-BSP-BK
PHNC 109-BSP-DU-BK
98.02303
98.02302
4.4 ±4.5
1.4 ±3.6
3.8 ±2.3
5.1 ±2.4
116
-------
TABLE A.19
On-Shore Exposure Rates
Exposure Rate
Location
(uR/hr)
STUDY
2
3a
4
8b
27
87
93
98
115
116
117
118
119
120
121
122
123
Location
LOCATIONS
4.8
5.7
6.1
13.5
5.2
6.2
4.5
5.5
5.0
4.6
4.8
5.6
6.3
6.6
5.3
5.4
6.6
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
Exposure Rate
(nR/hr)
5.0
5.4
4.9
4.9
5.3
5.9
6.0
4.8
6.5
5.5
6.5
5.5
5.1
5.6
5.4
5.3
BACKGROUND LOCATIONS
101
5.5
110
5.4
a A duplicate measurement at location 3 gave 5.9 jaR/hr.
b Location 8 is near a radioactive material storage compound.
117
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APPENDIX B
Evaluation of Cobalt-60 in Sediment
for
Pearl Harbor Naval Complex Samples
April 1998
-------
B.I Introduction
Cobalt-60 contamination in harbor sediments is primarily contained in Southeast Loch (defined here
as the portion of the harbor southeast of a line from the tip of pier B-3 to the tip of pier Y-3B.) Similar
patterns of contamination were found in 1966, 1968, and 1985 (Ca66, Ca72, Ca87).
The presence of historic contamination could conceivably mask a recent release of cobalt-60. To test
for evidence of a recent release, qualitative and quantitative comparisons of samples collected in
Southeast Loch in 1985 and 1998 were performed.
B.2 Qualitative Comparison of Southeast Loch Sediments in 1985 and 1998
Figure B.I shows a comparison of cobalt-60 levels in 1998 to those expected based on the 1985
survey. For this comparison, only surface sediment samples collected in Southeast Loch are
considered.
Fifty-six sediment samples were collected from Southeast Loch in this study. Of these, three had
nondetectable levels of cobalt-60 with MDC's between 0.012 and 0.022 pCi/g. In Figure B.I, these
are shown as if the actual concentration equaled the MDC. Forty-nine samples were collected in this
area in the 1985 survey. All had measured levels of cobalt-60 between 0.05 and 0.54 pCi/g. Between
1985 and 1998, the cobalt-60 will have radioactively decayed by a factor of 5.52, so the 1985 data
shown in the graph has been reduced by this factor. In addition, the 1985 data histogram has been
increased in scale by 56/49 to correct for the different number of samples collected in each survey.
The graph shows very similar distributions of cobalt-60 for the two data sets. Had a significant release
of cobalt-60 occurred since the 1985 survey, the 1998 data would be skewed to the right. Mixing and
diffusion of cobalt-60 since 1985 would shift the 1998 data to the left, potentially masking a small
release. However, the horizontal and vertical distribution of cobalt-60 in the sediment and core sample
data from both 1985 and 1998 indicate that this effect would be quite small. A recent release would
have to be at least one thousand times smaller than the known releases in the 1960's to be masked by
this effect.
A single sample from the present survey (PHNC 068-S, taken from Magazine Loch) has a
concentration of cobalt-60 higher than expected from the decayed 1985 data. A core sample taken at
the same location showed nondetectable levels of cobalt-60 in the upper 15 cm of sediment. This
indicates that the high sediment-sample result is a statistical outlier rather than evidence of a recent
release. Outliers are expected when comparing limited data sets like these.
B.3 Wilcoxon-Rank-Sum Test
The Wilcoxon-Rank-Sum (WRS) test is a non-parametric method for comparing two data sets. The
data from both sets are ranked in increasing numerical order. If the sum of ranks from the 1985 data
are significantly higher than a critical value which is based on the sample size, the possibility of excess
cobalt-60 in the 1998 samples is rejected. A detailed explanation of the test is given in (EPA97).
121
-------
In order to compensate for expected radioactive decay, the 1985 data are scaled down by a factor of
5.52. The null hypothesis for this test is that the 1998 data set exceeds the decayed 1985 data set. The
parameter "alpha" for this test was set to 5%. Alpha is the maximum probability of rejecting the null
hypothesis when it is true. In other words, if the 1998 data actually do exceed the decayed 1985 data,
there will only be a 5% chance of incorrectly concluding that they do not. The critical value against
which the 1985 sum is compared is based on alpha and the sample size. Using the procedures outlined
in (EPA97), the critical value is calculated to be 2853.
The two data sets in rank order are shown in table B.I. The three nondetection results in the 1998 data
set were conservatively treated as if cobalt-60 was present at the MDC. There were no samples in the
1985 data with nondetectable levels of cobalt-60. When two or more data have the same value, they
are assigned the same rank.
The sum of ranks for the 1985 data is 2884, which is greater than the critical value. The null
hypothesis is rejected. The 1998 data do not exceed the decayed 1985 data. Therefore, there is no
evidence of a recent release of cobalt-60 in Southeast Loch.
122
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to
cd
OQ
<+H
O
18
16
14
M 12
oo
0\
.S 10
co
0.00
0.02
0.04
0.06
^^ Measured Concentration (53)
[~~| Estimated from MDC (3)
[ [ Decayed 1985 Survey Results (49)
J_
0.08
0.10
0.12
60
Co Concentration (pCi/g)
0.14
16
14
12
10
3
cr
o
t/5
I
W
i—'•
»
t—*
00
00
e
o-
Fig. B.I: Comparison of cobalt-60 concentrations in Pearl Harbor southeast loch sediment from 1985 and 1998. The vertical axes
are scaled to reflect the different number of samples collected in each study.
-------
TABLE B.I
Cobalt-60 Sediment Data used in the Wilcoxon-Rank-Sum Test
1985 Survey
T . Concentration
Location
Measured Decayed
78 0.05
32 0.05
37 0.06
85 0.07
38 0.07
47 0.09
44 0.09
36 0.09
84 0.09
39 0.10
76 0.10
41 0.11
45 0.11
0.0091
0.0091
0.0109
0.0127
0.0127
0.0163
0.0163
0.0163
0.0163
0.0181
0.0181
0.0199
0.0199
Location
83
51
29
65
36
39
79
43
40
34
49
24
82
46
37
50
35
80
47
1998 Survey
Concentration
0.0099
0.0102
0.0102
0.0108
<0.0115
0.0119
0.0127
0.0127
0.0132
0.0153
0.0156
0.0165
0.0172
0.0174
0.0182
0.0184
0.0192
0.0197
0.0204
RANK
1.5
1.5
3
4.5
4.5
6
7
8
9
10.5
10.5
12.5
12.5
14
15
16
18.5
18.5
18.5
18.5
21
22
23
24.5
24.5
26
27
28
29
30.5
30.5
32
124
-------
TABLE B.l-Continued
1985 Survey
Concentration
Location ,, ^
Measured Decayed
60 0.12
40 0.12
88 0.13
58 0.14
43 0.15
50 0.16
48 0.16
75 0.17
68 0.17
42 0.18
62 0.18
61 0.19
46 0.19
0.0217
0.0217
0.0235
0.0253
0.0272
0.0290
0.0290
0.0308
0.0308
0.0326
0.0326
0.0344
0.0344
Location
38
45
48
25
26
60
63
64
41
66
67
59
77
78
71
61
74
31
81
1998 Survey
Concentration
< 0.0206
0.0210
0.0215
< 0.02 16
0.0216
0.0217
0.0241
0.0243
0.0249
0.0271
0.0271
0.0287
0.0307
0.0312
0.0318
0.0325
0.0329
0.0340
0.0348
RANK
33
34
35
36.5
36.5
39
39
39
41
42
43
44
45
46.5
46.5
48
49
50.5
50.5
52
53.5
53.5
55
56
57
58.5
58.5
60
61
62.5
62.5
64
125
-------
TABLE B.l-Continued
1985 Survey
Concentration
Location
Measured Decayed
34 0.20
66 0.21
72 0.22
77 0.22
74 0.22
70 0.22
53 0.22
56 0.24
73 0.24
69 0.25
71 0.26
35 0.27
57 0.28
59 0.30
49 0.30
64 0.30
67 0.32
0.0362
0.0380
0.0398
0.0398
0.0398
0.0398
0.0398
0.0434
0.0434
0.0453
0.0471
0.0489
0.0507
0.0543
0.0543
0.0543
0.0579
Location
30
42
44
75
76
32
69
145
73
72
142
56
70
52
1998 Survey
Concentration
0.0352
0.0358
0.0358
0.0368
0.0370
0.0380
0.0387
0.0388
0.0398
0.0474
0.0482
0.0501
0.0550
0.0571
RANK
65
66.5
66.5
68
69
70
71.5
71.5
73
74
77.5
77.5
77.5
77.5
77.5
77.5
81.5
81.5
83
84
85
86
87
88
89
91
91
91
93
94
95
126
-------
TABLE E.l-Continued
1985 Survey
Concentration
Location , ^
Measured Decayed
65 0.37 0.0670
51 0.41 0.0742
63 0.42 0.0760
55 0.50 0.0905
54 0.51 0.0923
52 0.54 0.0978
1998 Survey
Location Concentration
54 0.0597
53 0.0626
57 0.0891
68 0.1470
RANK
96
97
98
99
100
101
102
103
104
105
127
-------
APPENDIX C
Evaluation of Gross Alpha and Beta
Radioactivity in Sediment
for
Pearl Harbor Naval Complex Samples
April 1998
-------
C.I Introduction
Sediment and sediment core samples taken from the north shore of the shipyard (from dry dock #4
to pier B-3) have levels of gross alpha and gross beta radioactivity up to twice as high as samples
taken elsewhere. This difference is illustrated in Figure C.I, which shows results for sediment core
samples. The measured concentrations in the top four slices of each core were averaged to reduce
statistical fluctuations. Figure C.I (a) shows average gross alpha concentrations and C.l(b) shows
average net beta concentrations, where the naturally-occurring beta-emitter potassium-40 has been
subtracted. Core-averaged gross alpha activities in samples collected along the northern shore of
the shipyard were 9.3 ± 2.1 pCi/g (one standard deviation) compared to 5.8 ± 1.7 for all other
samples. Similarly, core-averaged net beta activities were 8.1 ± 0.9 as compared to 3.9 ± 1.0 for
all other samples.
C.2 Radioisotopic Analyses and Results
To further investigate the measured difference, five sediment samples were selected for additional
analysis. Three of these were collected in the shipyard area at locations 11, 17, and 20, and
exhibited high gross alpha and/or gross beta content. A fourth was collected at location 28, which
is nearby but showed lower radioactivity. The fifth was a background sample collected at location
91.
Each of the selected samples was reanalyzed for gross alpha and gross beta content. In addition,
radiochemical analyses were performed to accurately measure isotope-specific uranium, thorium,
plutonium, strontium, and technetium-99 content. Due to an administrative error, the sample from
location 11 was not analyzed for technetium-99. Instead, the sample from location 13 was
analyzed.
The selected radionuclides were chosen because they are not well quantified by gamma-
spectrometry measurements. Uranium and thorium isotopes and their decay products can be
present naturally in sediment at levels high enough to cause the measured differences. Plutonium,
strontium, and technetium are potential sources of alpha or beta radioactivity which would not
normally be present at levels high enough to account for the difference, but which could
conceivably be present in the environment due to a release.
The results of the radiochemical analyses are tabulated in Appendix A, Tables A. 10 and A.ll.
These show no indication of anomalous levels of uranium, thorium, plutonium, strontium, or
technetium in the shipyard samples. The measured plutonium and strontium levels are consistent
with expectations for global fallout from atmospheric weapons tests.
Results of the radiochemical analyses and gamma spectrometry were used to calculate total alpha
and beta activity for comparison with the measured gross activities. The calculation includes the
effects of radioactive ingrowth and decay and of radon de-emanation during sample preparation.
Concentrations of radionuclides not directly measured are inferred from the concentrations of their
radioactive parents or progeny. Since the isotope-specific results used in the calculation are much
more accurate than the gross activity measurements, some of the uncertainty in the estimated total
131
-------
alpha and total beta radioactivity can be eliminated. The calculation includes potential errors of its
own, though, since it only accounts for isotopes that were either measured in the isotope-specific
analyses or are related to other isotopes so measured.
A comparison of the original and repeat analyses for gross alpha and gross beta activity along with
the calculated activities is shown in Table C.I. Differences between measured concentrations were
smaller in the repeat analysis. Overall, samples from locations 17 and 20 show average measured
gross alpha and beta radioactivity significantly higher than the calculated total alpha and beta
content. The samples from locations 11 and 28 have slightly elevated gross radioactivity compared
to the calculation, while the background sample from location 91 had measured gross activities
slightly lower than the calculated activities.
C.3 Possible Causes for Differences in Gross Alpha and Gross Beta Levels
Four possible causes for the measured differences were considered: systematic differences in
sample collection or analysis, differences in natural radioactivity due to soil chemistry or non-
nuclear operations such as construction or sandblasting, statistical fluctuations due to measurement
uncertainties, and releases of radioactivity from operations involving nuclear-powered warships.
Systematic Errors - Samples in this study were collected by three teams over the course of several
days. However, most of the sediment samples were collected by the same team. Core samples
were collected by another team. Collection times were based on convenience and were not
strongly correlated with location. Samples were shipped, processed, and analyzed in "sample
delivery groups." These groups were made up of samples from various regions of the harbor
without regard for the collection location. Samples from the shipyard were routinely grouped with
samples from elsewhere in the harbor. Since the differences are seen both in sediment and core
data, and since the samples were not grouped by location, systematic errors are rejected as a cause
for the measured differences.
Natural Radioactivity - All sediment contains natural alpha- and beta-emitting radioactivity, mostly
in the form of uranium, thorium, and radium isotopes, their decay products, and potassium-40.
These can vary from place to place due to differences in soil chemistry, biotic activity, runoff
patterns, etc. Natural radioactivity levels can also be affected by human activities such as
construction and sandblasting. However, the measured or inferred levels of natural radioactivity in
selected samples (as determined by gamma spectrometry and radioisotopic analysis) do not show
large enough differences to explain the differences in gross alpha and gross beta radioactivity.
Random Statistical Fluctuations - This explanation is unlikely due to the geographical grouping of
elevated gross alpha and gross beta levels both in sediment and sediment core samples.
Quantitative tests of significance aren't needed to show this; the grouping is well demonstrated by
Figure C.I. Of 33 samples, the nine taken from the shipyard north shore have higher gross beta
content than any other samples, and have higher gross alpha content than all but five of the other
samples.
Releases from nuclear-powered warship operations - A list of radionuclides associated with
132
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nuclear-powered warships is given in section 1.3 of the main body of this report. Most of these
nuclides emit gamma rays and would have been detected at levels lower than 1 pCi/g. Plutonium,
strontium, and technetium isotopes would not be detected by gamma-ray spectrometry, but it is
very unlikely that these would be released without other radionuclides such as cesium-13 7.
Radioisotopic analysis of selected sediment samples along the north shore of the shipyard showed
negligible levels of these isotopes.
Tritium and nickel-63 are also beta-emitting radionuclides which could be present due to release
but which cannot be detected by gamma-ray spectrometry. However, tritium is highly soluble in
water and would not be expected to be present in sediment. Analysis of harbor water samples
showed no evidence of elevated levels of tritium near the shipyard. Nickel-63 is ruled out as a
source of the elevated gross beta levels because the method used to measure gross beta
radioactivity cannot detect the very-low-energy beta particles from nickel-63.
The elevated measurements of gross alpha and gross beta radioactivity along the north shore of the
shipyard cannot be attributed to nuclear-powered warship operations, nor can it be attributed to
non-nuclear operations or natural radioactivity. A possible explanation not investigated is a
difference in the physical or chemical properties of the sediment (other than a difference in
radioactivity) which systematically affected the analyses.
133
-------
TABLE C.I
Alpha & Beta Radioactivity in Selected Sediment Samples
Sample ID
PHNC011-S
PHNC017-S
PHNC 020-S
PHNC 028-S
PHNC091-S-BK
Total Alpha and Beta Concentrations ( pCi/g ± 2a )
Original Analysis "
Alpha Beta
15.3 ±7.8 8. 8 ±3.2
13. 5 ±7.0 12.5 ±3.2
18.4 ±8.0 13.6±3.3
4. 5 ±8.0 7.4 ±3. 5
0.5 ±3.1 4.3 ±2. 5
Repeat Analysis "
Alpha Beta
7.1 ±5.2 5. 8 ±2.7
13.7 ±7.3 11.4 ±3.3
6.7 ±5. 5 9. 2 ±3.0
15.8±7.1 10.2 ±3.0
5.0 ±5.0 6.9 ±2. 8
Calculation b
Alpha Beta
5.1 ±1.2 7.2 ±1.0
4. 5 ±0.9 5.1 ±0.5
5.1 ±1.0 4.6 ±0.5
6.0 ±0.9 6.7 ±0.6
4.6 ±0.7 5. 8 ±0.3
a Total alpha and beta content as measured by gross-alpha and gross-beta analyses.
b Total alpha and beta content calculated by summing all quantified and inferred radionuclides by radioisotopic
and gamma-ray analyses.
134
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Fig. C.I: Average alpha and net beta radioactivity in top four slices of sediment core samples. Net
beta results are corrected for potassium-40 content. Error bars are la. Samples from locations 1,
146, 7, 10, 16, 19, 20, and 22 are in the first group. Samples from locations 92 and 109 are in the
last group. Duplicate samples are included.
135
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