United States
         Environmental Protection
         Agency
         Office of Radiation Programs
Eastern Environmental
Radiation Facility
1890 Federal Drive
Montgomery, AL 36109
EPA 520/5-89-021
September 1989
         Rad'ati n
SEPA
        Environmental  Radiation
        Data
        Report 57
        January - March  1989

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ENVIRONMENTAL




RADIATION




DATA
                    REPORT 57



                January - March 1989
      United States Environmental Protection Agency




             Office of Radiation Programs

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                                               Preface
    Environmental Radiation Data (ERD) is compiled and distributed quarterly by the Office of Radiation
Programs' Eastern Environmental Radiation Facility (EERF) in Montgomery, Alabama, and contains data
from the Environmental Radiation Ambient Monitoring  System (ERAMS).  Data from similar networks
operated by contributing States, Canada, Mexico, and the Pan American Health Organization are reported
in the ERD when available.
    ERAMS was established in 1973 by the U. S. Environmental Protection Agency's Office of Radiation
Programs (ORP). The ERAMS is comprised of nationwide sampling stations that provide air, surface and
drinking water, and milk samples from which environmental radiation levels are derived. The major emphasis
for ERAMS is upon identifying trends in the accumulation of long-lived  radionuclides in the  environment.
    Sampling locations are selected to  provide optimal population coverage while  functioning to monitor
fallout from nuclear devices and other forms  of radioactive  contamination of the environment.  The radiation
analyses performed on these  samples  include gross alpha and gross beta levels, gamma analyses for fission
products,  and specific  analyses for uranium, plutonium, strontium, iodine, radium, krypton, and tritium.
This monitoring effort  also provides ancillary information  on natural background levels and on routine and
accidental releases into the environment from stationary sources.
    The radiochemical procedures used by the  EERF  to analyze the  ERAMS samples are contained in
Eastern Environmental Radiation Facility Radiochemistry  Procedures Manual (EPA 520/5-84-006). Station
operation and sample collection are in accordance with procedures contained in the ERAMS  Manual  (EPA
520/5-84-007, 008, 009).
                                                 111

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                     Environmental Radiation Data










                                      Contents




                                                                                   Page




Data - Reporting Rationale and Procedures                                               ix





Data - ERAMS                                                                       1





      Section I.    Air Program                                                        1





                   1. Airborne Particulates and Precipitation                             1





                   2. Plutonium and Uranium in Airborne Particulates                     16





                   3. Krypton-85                                                     19




      Section II.   Water Program                                                     20





                   1. Surface Water                                                   20





                   2. Drinking Water                                                  25





      Section III.  External Gamma Ambient Monitoring Program                          31





      Section IV.  Milk Program                                                      33





                   1. Pasteurized Milk                                                 33





                   2. Strontium-90 and Strontium-89 in Milk                             40





                   3. Carbon-14 in Milk                                               41

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                         Environmental Radiation Data










                                        List  of Tables




Table                                                                                      Page




  1      ERAMS Reporting Increments and Minimum Detectable Levels                         xi





  2      Gross Beta Concentrations in Airborne Particulates: January 1989                        2





  3      Gross Beta Concentrations in Airborne Particulates: February 1989                       4





  4      Gross Beta Concentrations in Airborne Particulates: March 1989                         6





  5      Gross Beta Concentrations in Precipitation: January 1989                                8





  6      Gross Beta Concentrations in Precipitation: February 1989                              10




  7      Gross Beta Concentrations in Precipitation: March 1989                                12





  8      Tritium Concentrations in Precipitation:  January - March 1989                          14





  9      Plutonium and Uranium Analyses In Precipitation: March - May 1988                   17





  10    Surface Water Tritium Concentrations: January  March 1989                           21




  11    Surface Water Annual Gamma Analysis:  April 1988                                    23





  12    Drinking Water Tritium Concentrations:  January - March 1989                          26





  13    Iodine-131 in Drinking Water Concentrations: January - December 1988                  29





  14    Environmental Gamma Ambient Monitoring Program: January   March 1989             32





  15    Concentrations of Radionuclides in Pasteurized Milk: January 1989                      34





  16    Concentrations of Radionuclides in Pasteurized Milk: February 1989                      36





  17    Concentrations of Radionuclides in Pasteurized Milk: March 1989                       38





  18    Strontium-90 and Strontium-89 in Pasteurized Milk: EPA Regional Composites           40
                                               Vll

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                              DATA - Reporting Rationale and Procedures
    In  1973, the  U.S.  Environmental  Protection Agency's Office of Radiation  Programs established the
Environmental Radiation Ambient Monitoring System (ERAMS) to provide continuous, accurate, and usable
environmental  radiation data to the public.  For completeness, ERAMS data for  all specific  radionuclide
analyses are reported as the calculated  results indicate, whether the numbers are negative, zero, or positive.

                                          Reporting Rationale

    Frequently, there is little or no radioactivity in environmental media. Thus, the results of laboratory
analyses should statistically  show a distribution of negative and positive numbers  about zero. A negative
value occurs when a previously determined  background value is subtracted from a sample value  that  is
less than that  of the background.  Prior to July  1975, ERAMS data were not reported numerically when
the results were less  than  a  specified reporting level or minimum detectable level.  The  present reporting
procedure allows all the data to be reported and evaluated statistically without an arbitrary cutoff of small
or negative numbers. This approach will facilitate  estimates of bias in  the nuclide analyses and will allow
better evaluation of distributions and trends in environmental data.
    When reviewing the data in this report,  caution should be exercised in the interpretation of individual
negative values. Obviously, a negative  activity value has no physical significance. Such numbers,  however,
are significant when taken together with other observations that indicate that  the true value of a distribution
is near zero. When an  average of many measurements produces a result  significantly less than zero,  this
indicates a bias in the measurement procedure.
    (1) Reported  Values
         Specific Analyses. All specific  radionuclide  analyses will be reported as the counting results indicate,
    whether the value is negative, zero, or positive. All reported values are corrected for  radioactive decay
    to the collection date.
         Gross Analyses.  The actual  value  of gross radioactivity measurements will be reported, unless
    the value is below the minimum detectable  level (MDL) at the 2o~ confidence  level,  then  <  minimum
    detectable level will be reported.
         MDL is defined as the 3o~ error of the background. A tabulation of typical MDL's is  given in the
    following table.
    (2) Reported Error  Terms
         Each  reported  value for specific analyses will be accompanied  by a  counting error term at the 2o~
    (95%) confidence interval. Error terms are therefore reported as counting errors.  At the very low levels
    characteristic of most  ERAMS measurements, counting error is the greatest contributor to overall error.
    (3) Significant Figures
         No more than three significant figures will be reported. If a datum contains more than three  figures,
    it will be rounded off to three figures.
    (4) Reporting Levels
         The reporting units, smallest  increments for reporting, and typical  minimum detectable levels for
    each isotope are shown in Table  1.  Reporting  increments  are sometimes considerably smaller  than
    minimum  detectable amounts to avoid truncation errors in averaging.
    (5) Averages
    Averages will be calculated along  with appropriate error terms  in an annual summary and analysis  of
ERAMS data.  In calculating these averages, all values of individual data including negative numbers will be
utilized. Averages will not be included  in ERD quarterly reports.
                                                  IX

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                                       Table  1
ERAMS  Reporting Increments and Minimum Detectable Levels
                           for Radionuclide Analyses
Radionuclide
Gross Alpha
f C4ross Beta
Tritium
Carbon-14
Krypton-85
ft Plutonium-238,239,240
I Uranium-234, 235,238
Radium-226
Strontium-90
|| Strontium-89
It Iodine-131
Iodine-129
Cesium-137
|| Barium-140
Potassium
Potassium-40
Media
Water
Air
Water
Precipitation
Reporting
Units
pCi/1
pCi/m3
pCi/1
nCi/m2
Reporting
Increments
1 pCi/1
0.01 pCi/m3
1 pCi/1
0.01 nCi/m2
Minimum
Detectable
Levels
2 pCi/1
0.01 pCi/m3
1 pCi/1
0.01 nCi/m2
(specific radiochemical analyses)
Water
Milk
Milk
Ambient Air
Air
Milk
Water
Air
Milk
Water
Water
Milk
Water
Milk
Milk
Water
Water
Milk
Milk
Water
Milk
Water
Milk
Water
Water
nCi/1
nCi/1
pCi/1
pCi/m3
aCi/m3
pCi/1
pCi/1
aCi/m3
pCi/1
pCi/1
pCi/1
pCi/1
PCi/1
PCi/1
pCi/1
pCi/1
pCi/1
fCi/1
PCi/l
pCi/1
pCi/1
PCi/1
g/1
g/1
pCi/1
0.1 nCi/1
0.1 nCi/1
1 PCi/l
0.1 pCi/m3
0.1 aCi/m3
0.001 pCi/1
0.001 pCi/1
0.1 aCi/m3
0.001 pCi/1
0.001 pCi/1
0.1 pCi/1
0.1 pCi/1
0.1 PCi/l
1 pCi/1
1 pCi/1
1 pCi/1
0.1 pCi/1
0.1 fCi/1
1 pCi/1
1 pCi/1
1 pCi/1
1 pCi/1
0.1 g/1
0.1 g/1
1 pCi/1
0.2 nCi/1
0.2 nCi/1
15 pCi/1
2 pCi/m3
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.015 pCi
0.1 pCi/1
1 pCi/1
1 pCi/1
5 pCi/1
10 pCi/1
10 pCi/1
0.4 pCi/1
0.4 fCi/1
10 pCi/1
10 pCi/1
10 pCi/1
10 pCi/1
0-12 g/1
0.12 g/1
100 pCi/1
   f The value of MDL for precipitation in terms of nCi/m  would be dependent on precipitation (mm).
  ft This value of MDL for air in terms of pCi/m would be dependent on the air volume. Measurement, by alpha spectroscopy
    that includes contributions of plutonium-239 and plutonium-240. MDL for all media given per sample.
   | This value of MDL for air in terms of pCi/m would be dependent on the air volume. MDL for all media given per sample.
  || Activity as of the day of counting.
                                            XI

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                                                                                         DATA   EPA
                                  ENVIRONMENTAL RADIATION
                           AMBIENT MONITORING SYSTEM (ERAMS)
    Section I. Air Program

                                Airborne Particulates  and Precipitation

    Gioss beta radioactivity measurements and certain specific analyses are performed on air participates
and precipitation samples as indicator measurements in assessing the general (national) impact of all con-
tributing sources  on environmental levels of radiation.
    Airborne participates are collected continuously at field stations representing wide geographic coverage,
including present  and potential sources of environmental radioactivity. Sampling sites are located throughout
the United States.
    Filters (10-cm diameter synthetic fiber) from air samplers are changed twice weekly and field measure-
ments are made with a G-M survey meter ' at 5 hours and 29 hours after collection to allow for radon and
thoron daughter product decay.  Field estimates are reported  to  appropriate EPA officials by telephone or
mail depending on the activity  levels found.
    The filters are sent to EERF for more sensitive analyses in a low background  beta counter.  Gamma
scans are performed on all filters showing gross beta counts greater than 1 pCi/m3. The laboratory obtained
values are usually lower than the field estimates due to the decay of naturally occurring radionuclides between
the times of the two measurements.
    Precipitation samples  are collected at those field stations collecting air filters. These samples are also
sent to EERF where they are composited monthly  for gamma scans, tritium, and gross beta activity mea-
surements. A composite of the March, April, and May precipitation samples is analyzed for plutonium-238,
-239, -240, and uranium-234, -235, and -238.
    A compilation of individual measurements is available from  the Eastern Environmental Radiation Fa-
cility, 1890 Congressman W.L.  Dickinson  Drive, Montgomery,  AL 36109.

    Tables 2-4 contain the data in airborne  particulate samples for January   March 1989.   Tables  5-7
contain the data  in precipitation sample for January  March  1989.   Table 8 contains the data for tritium
in precipitation samples for January - March 1989 at the selected sites.
   ' The counts at five hours for the Montgomery, Alabama, station are performed on a low background beta counter.

                                                  1

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         Table 2

  Airborne Particulat.es
Gross Beta Concentrations

        January 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
HI: HONOLULU
IA:IOWA CITY
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC : CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NE: LINCOLN
NH: CONCORD
NJ:TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
Number
of
Samples
9
9
4
9
9
9
7
8
9
7
9
8
9
8
9
9
8
5
7
8
7
9
9
9
9
9
9
8
9
9
9
8
9
5
9
9
3
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.6 0.2 0.4
0.2 0.1 0.1
2.0 0.0 0.5
0.0 0.0 0.0
0.4 0.1 0.2
0.6 0.1 0.3
0.1 0.0 0.1
0.3 0.0 0.1
0.4 0.0 0.1
0.0 0.0 0.0
0.2 0.1 0.2
0.2 0.1 0.1
0.3 0.0 0.1
0.0 0.0 0.0
0.4 0.1 0.2
0.2 0.1 0.1
2.0 0.8 1.1
0.5 0.1 0.2
0.1 0.0 0.1
0.3 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.3 0.0 0.1
0.5 0.1 0.3
0.2 0.0 0.1
0.2 0.0 0.1
0.0 0.0 0.0
0.2 0.1 0.1
1.9 0.1 0.9
0.1 0.0 0.0
0.4 0.1 0.2
0.4 0.1 0.3
0.3 0.1 0.2
0.1 0.0 0.0
0.2 0.1 0.1
0.2 0.0 0.1
1.0 0.0 0.3
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.02 0.01 0.01
0.02 0.01 0.02
0.02 0.01 0.01
0.03 0.00 0.01
0.05 0.01 0.02
0.08 0.01 0.02
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.00
0.00 0.00 0.00
0.05 0.01 0.03
0.04 0.00 0.02
0.03 0.01 0.02
0.04 0.01 0.02
0.03 0.01 0.02
0.04 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.02
0.04 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.05 0.01 0.02
0.10 0.01 0.03
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.02
0.02 0.01 0.02
0.01 0.01 0.01

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                  Table 2 (continued)

                 Airborne Participates
              Gross Beta Concentrations
                       January 1989
Location
NY:YAPHANK
OH : COLUMBUS
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PITTSBURGH
PA: THREE MILE ISLAND
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SD: PIERRE
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA : LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI: MADISON
WV: CHARLESTON
WY: CHEYENNE
Number
of
Samples
7
8
9
9
9
9
9
9
9
9
6
1
9
9
8
9
9
8
9
9
9
9
9
9
2
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.1 0.0 0.1
0.3 0.0 0.1
0.2 0.0 0.1
0.3 0.0 0.1
1.3 0.3 0.6
0.0 0.0 0.0
0.2 0.0 0.1
0.3 0.0 0.2
0.1 0.1 0.1
0.6 0.0 0.2
0.2 0.0 0.1
0.0 0.0 0.0
0.3 0.1 0.2
0.6 0.1 0.3
0.5 0.1 0.2
0.2 0.1 0.1
0.3 0.1 0.2
1.1 0.4 0.7
0.1 0.0 0.0
0.3 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.2 0.0 0.1
0.5 0.1 0.2
0.0 0.0 0.0
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.01 0.01 0.01
0.02 0.01 0.02
0.03 0.01 0.02
0.03 0.01 0.02
0.08 0.01 0.03
0.01 0.00 0.00
0.03 0.01 0.02
0.02 0.01 0.02
0.03 0.01 0.01
0.03 0.01 0.02
0.03 0.01 0.02
0.01 0.01 0.01
0.04 0.01 0.02
0.04 0.01 0.02
0.06 0.01 0.02
0.03 0.01 0.02
0.02 0.01 0.01
0.06 0.01 0.03
0.06 0.00 0.02
0.02 0.01 0.01
0.01 0.00 0.00
0.01 0.00 0.01
0.04 0.01 0.02
0.02 0.01 0.01
0.01 0.00 0.00
Minimum Detectable Limit for
Minimum Detectable Limit for
field estimates - 0.1 pCi/ma
laboratory measurement - 0.01 pCi/m3.

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         Table 3

  Airborne Particulates
Gross Beta Concentrations
       February 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL:MIAMI
HI: HONOLULU
IA:IOWA CITY
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC : CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NE:LINCOLN
NH: CONCORD
NJ:TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
Number
of
Samples
6
8
4
8
8
8
8
8
6
7
8
8
8
8
8
8
7
3
5
8
8
8
8
8
7
8
8
6
6
8
8
8
8
3
8
8
3
5-Hour Field
Estimate
Max Min Avg
(pC^i/m3)
0.3 0.1 0.2 /
0.1 0.0 0.1
2.0 0.2 0.8
0.0 0.0 0.0
0.4 0.1 0.2
0.5 0.2 0.3
0.1 0.0 0.1
0.1 0.1 0.1
0.1 0.1 0.1
0.1 0.0 0.1
0.4 0.1 0.2
0.1 0.1 0.1
0.6 0.1 0.2
0.0 0.0 0.0
0.1 0.0 0.1
0.2 0.0 0.1
0.9 0.2 0.5
0.2 0.1 0.1
0.2 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.0
0.1 0.0 0.1
0.2 0.0 0.1
2.3 0.2 0.5
0.2 0.0 0.1
0.3 0.0 0.1
0.0 0.0 0.0
0.2 0.1 0.1
0.5 0.0 0.3
0.1 0.0 0.0
0.3 0.1 0.1
0.3 0.1 0.2
0.5 0.0 0.2
0.0 0.0 0.0
0.1 0.0 0.1
0.1 0.0 0.0
0.0 0.0 0.0
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.02 0.00 0.01
0.03 0.01 0.01
0.02 0.01 0.02
0.02 0.00 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.01 0.01 0.01
0.01 0.01 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.06 0.00 0.01
0.03 0.01 0.01
0.06 0.01 0.03
0.03 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.02
0.01 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.00 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.04 0.01 0.02
0.02 0.01 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.02
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01

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                  Table 3  (continued)

                 Airborne Particulates
              Gross Beta  Concentrations

                      February 1989
Location
NY:YAPHANK
OH: COLUMBUS
OH:PAINESVILLE
OH : TOLEDO
OK: OKLAHOMA CITY
OR : PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PITTSBURGH
PA: THREE MILE ISLAND
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SD: PIERRE
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI: MADISON
WV: CHARLESTON
WY: CHEYENNE
Number
of
Samples
7
6
8
8
8
8
8
8
8
8
7
2
7
7
7
8
7
8
8
8
8
8
8
7
2
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.1 0.1 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.1
1.0 0.0 0.3
0.0 0.0 0.0
0.2 0.1 0.1
0.3 0.0 0.1
0.0 0.0 0.0
0.3 0.0 0.2
0.1 0.0 0.1
0.1 0.0 0.1
0.6 0.1 0.2
0.4 0.1 0.2
0.6 0.1 0.3
0.1 0.0 0.1
0.2 0.1 0.1
0.8 0.2 0.4
0.1 0.0 0.0
0.4 0.1 0.2
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.0
0.0 0.0 0.0
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.04 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.02 0.01 0.01
0.03 0.00 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.03 0.01 0.02
0.01 0.01 0.01
0.02 0.00 0.01
0.04 0.01 0.02
0.03 0.01 0.01
0.01 0.00 0.01
0.02 0.01 0.01
Minimum Detectable Limit
Minimum Detectable Limit
for field estimates - 0.1 pCi/m .
for laboratory measurement - 0.01 pCi/m3.

-------
         Table 4

  Airborne Participates
Gross Beta Concentrations
        March 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL:MIAMI
HI: HONOLULU
IA:IOWA CITY
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS:TOPEKA
KY: FRANKFORT
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI: LANSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC:WILMINGTON
ND:BISMARCK
NE: LINCOLN
NH: CONCORD
NJ:TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
Number
of
Samples
8
9
8
9
9
9
9
9
8
9
9
9
9
9
8
9
8
3
7
9
8
9
9
9
8
8
7
6
8
9
9
7
9
4
9
9
4
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.3 0.1 0.2
0.4 0.0 0.2
3.4 0.0 1.4
0.0 0.0 0.0
0.4 0.0 0.2
1.0 0.3 0.7
0.1 0.0 0.1
0.1 0.0 0.1
0.2 0.0 0.1
0.1 0.0 0.0
0.2 0.1 0.2
0.3 0.1 0.1
0.2 0.1 0.2
0.0 0.0 0.0
0.2 0.0 0.1
0.2 0.0 0.1
1.7 0.2 0.9
0.2 0.1 0.1
0.1 0.0 0.1
0.1 0.0 0.1
0.1 0.0 0.0
0.2 0.0 0.0
0.3 0.0 0.1
0.8 0.1 0.3
0.4 0.0 0.1
0.1 0.0 0.1
0.0 0.0 0.0
1.3 0.1 0.3
1.6 0.1 0.8
0.1 0.0 0.1
0.2 0.0 0.1
0.4 0.1 0.3
0.3 0.1 0.2
0.0 0.0 0.0
0.3 0.0 0.1
0.1 0.0 0.1
0.2 0.0 0.1
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.01 0.00 0.01
0.02 0.01 0.01
0.03 0.01 0.02
0.00 0.00 0.00
0.01 0.00 0.01
0.02 0.01 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.01 0.00 0.00
0.01 0.00 0.00
0.02 0.01 0.01
0.01 0.00 0.01
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0,02 0.01 0.01
0.01 0.01 0.01
0.01 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.01 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
0.01 0.00 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.00 0.01

-------
                   Table 4 (continued)

                 Airborne Participates
              Gross Beta Concentrations
                        March 1989
Location
NY:YAPHANK
OH: COLUMBUS
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:GOLDSBORO
PA:HARRISBURG
PA: PITTSBURGH
PA: THREE MILE ISLAND
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SD: PIERRE
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WA: SPOKANE
WI: MADISON
WV: CHARLESTON
WY: CHEYENNE
Number
of
Samples
9
6
9
9
6
9
9
9
9
8
9
1
8
6
9
9
7
8
9
9
9
9
9
9
4
5-Hour Field
Estimate
Max Min Avg
(pCi/m3)
0.2 0.0 0.1
0.2 0.0 0.1
0.2 0.0 0.1
0.5 0.0 0.1
0.9 0.1 0.5
0.0 0.0 0.0
0.4 0.0 0.2
0.2 0.0 0.1
0.0 0.0 0.0
0.2 0.0 0.1
0.2 0.0 0.1
0.0 0.0 0.0
0.3 0.0 0.2
0.8 0.0 0.3
0.6 0.1 0.3
0.7 0.0 0.2
0.3 0.1 0.2
0.9 0.2 0.5
0.3 0.0 0.1
0.6 0.1 0.3
0.1 0.0 0.0
0.2 0.0 0.1
0.4 0.0 0.1
0.2 0.0 0.1
0.4 0.1 0.3
EERF Lab
Measurment
Max Min Avg
(pCi/m3)
0.01 0,00 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0,01 0.01 0.01
0.02 0.01 0.02
0,01 0.00 0.00
0.01 0.01 0.01
0,02 0.01 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0.01 0.01 0.01
0,01 0.01 0.01
0.01 0.01 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.02 0.00 0.01
0.02 0.00 0.01
0.02 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
0.01 0.00 0.00
0.01 0.00 0.00
0.01 0.01 0.01
0.02 0.01 0.01
0.01 0.01 0.01
Minimum Detectable Limit
Minimum Detectable Limit
for field estimates - 0.1 pCi/m3.
for laboratory measurement - 0.01 pCi/m3.

-------
         Table 5

Gross Beta Concentrations
     in Precipitation

        January 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT: HARTFORD
FL: JACKSONVILLE
FL:MIAMI
ID:BOISE
LA: NEW ORLEANS
MA: LAWRENCE
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND:BISMARCK
NJ:TRENTON
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY:YAPHANK
OH:PAINESVILLE
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
SC: COLUMBIA
TN:KNOXVILLE
Depth
(nun)
86.6
44.0
20.0
49.2
10.4
16.0
43.0
9.8
38.4
57.8
24.0
2.0
41.0
80.0
42.0
56.0
3.0
34.7
9.0
15.0
39.6
29.0
31.0
49.0
33.0
96.0
7.0
38.0
65.2
157.4
Act. ±2
-------
         Table 5 (continued)

    Gross Beta Concentrations
          in Precipitation

             January 1989
Location
TN: NASHVILLE
TX: AUSTIN
UT:SALT LAKE CITY
VA:LYNCHBORG
WA:OLYMPIA
WI: MADISON
WV : CHARLESTON
Depth
(mm)
152.8
15.0
10.0
28.4
149.2
83.2
39.6
Act . ±2
-------
         Table 6

Gross Beta Concentrations
     in Precipitation

       February 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
CA: BERKELEY
CT : HARTFORD
FL: JACKSONVILLE
FL: MIAMI
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
MA: LAWRENCE
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC : CHARLOTTE
NC: WILMINGTON
NJ:TRENTON
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY:YAPHANK
OH:PAINESVILLE
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PArMIDDLETOWN
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX:EL PASO
UT:SALT LAKE CITY
Depth
(mm)
63.2
169.0
40.4
35.0
19.0
14.0
30.2
50.4
23.2
42.0
4.0
40.0
41.0
113.0
68.0
77.0
42.6
20.0
70.0
20.0
42.0
53.0
114.2
45.0
98.8
86.4
96.0
199.2
20.0
22.8
Act. ±2
-------
       Table 6 (continued)

   Gross Beta Concentrations
         in Precipitation

           February 1989
Location
VA:LYNCHBURG
WA:OLYMPIA
WI:MADISON
WV : CHARLESTON
Depth
(mm)
24.4
151.0
54.2
92.0
Act. ±2
-------
         Table 7

Gross Beta Concentrations
     in Precipitation

        March 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT : HARTFORD
FL: JACKSONVILLE
FL: MIAMI
ID: BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC : CHARLOTTE
NC: WILMINGTON
NJ:TRENTON
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY SYRACUSE
NY:YAPHANK
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
SC: COLUMBIA
Depth
(mm)
155.6
141.0
8.0
161.7
4.8
50.0
88.8
47.1
77.4
47.0
10.4
63.0
19.7
130.0
133.0
102.4
90.0
61.5
25.0
36.2
58.0
8.0
100.0
79.0
34.0
31.0
147.2
92.4
16.0
111.0
Act . ±2
-------
         Table 7 (continued)

    Gross Beta Concentrations
          in Precipitation
              March 1989
Location
TN:KNOXVILLE
TH : NASHVILLE
TX:EL PASO
UT:SALT LAKE CITY
VA : LYNCHBURG
WArOLYMPIA
HI: MADISON
WV : CHARLESTON
Depth
(mm)
98.2
142.3
12.0
20.2
64.4
232.0
31.2
95.0
Act. ±2
-------
        Table 8
     Precipitation
Tritium Concentrations
   January - March 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT : HARTFORD
FL: JACKSONVILLE
FL: MIAMI
ID .-BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
MA: LAWRENCE
MN MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC: CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NJ:TRENTON
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
NY:YAPHANK
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
January 1989
nCi/1 ±2(7
0.1 0.2
0.2 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.1 0.2
NS
NS
0.2 0.2
0.1 0.2
0.2 0.2
0.3 0.2
0.1 0.2
0.1 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.2 0.2
NS
0.2 0.2
0.1 0.2
NS
0.2 0.2
0.2 0.2
0.1 0.2
0.3 0.2
NS
0.2 0.2
0.2 0.2
0.1 0.2
0.3 0.2
February 1989
nCi/1 ±2
-------
             Table 8 (continued)

                Precipitation
           Tritium Concentrations
             January - March 1989
Location
TX:EL PASO
UT:SALT LAKE CITY
VA:LYNCHBURG
WA:OLYMPIA
WI: MADISON
WV : CHARLESTON
January 1989
nCi/1 ±2
-------
                   Plutonium and Uranium in Airborne Particulates and Precipitation

    Environmental radiation levels of plutonium and  uranium are  determined by the analysis of semi-
annually composited  samples  (air niters) collected from the  continuously  operating  airborne  particulate
samplers.
    Concentration of the specific isotopes of plutonium-238, -239, and -240 and uranium-234, -235, and
-238 are determined by alpha spectroscopy following chemical separation.  The volume  of air represented  by
the semiannual composite ranges from 25,000 to 40,000  cubic meters.
    Plutonium and uranium results are published when^they become available.
    Table 9 contains the plutonium and uranium in precipitation data for March - May 1988.   Values are
based upon composites of the  March, April, and May samples. Samples from these three months only are
analyzed annually because, due to the spring rains, they usually contain the year's highest concentrations of
plutonium and uranium.
                                                  16

-------
                Table 9
    Plutonium and Uranium Analyses
Selected Precipitation Composite Samples
            March - May 1988
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA: BERKELEY
CO: DENVER
CT: HARTFORD
DE: WILMINGTON
FL: JACKSONVILLE
FL: MIAMI
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
LA: NEW ORLEANS
MA: LAWRENCE
ME: AUGUSTA
MI:LANSING
MN: MINNEAPOLIS
MO: JEFFERSON CITY
MS: JACKSON
NC : CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
NH: CONCORD
NJ:TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY : ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY SYRACUSE
NY:YAPHANK
OH : COLUMBUS
OH:PAINESVILLE
OH -.TOLEDO
OR: PORTLAND
PA:HARRISBURG
PA:MIDDLETOWN
236pu
pCi/1 ±2
-------
                     Table 9 (continued)

             Plutonium and Uranium Analyses
         Selected Precipitation Composite Samples
                       March - May 1988
Location
PA -.PHILADELPHIA
PA: PITTSBURGH
RI: PROVIDENCE
SCrBARNWELL
SC: COLUMBIA
TN:KNOXVILLE
TN: NASHVILLE
TX: AUSTIN
VA:LYNCHBURG
WA:OLYMPIA
WI: MADISON
WV: CHARLESTON
238pu
pCi/1 ±2
-------
                                             Krypton-85

     Krypton-85 is a long-lived noble gas with a half-life of 10.8 years. It is released into the atmosphere
by nuclear reactor operations, fuel reprocessing,  weapons tests, and research and defense related activities.
Krypton-85 also occurs naturally in minor quantities primarily from the neutron capture of stable krypton-
•84 as well as spontaneous fission and neutron-induced fission  of uranium. Krypton-85 in the atmosphere
has been monitored to identify and establish baseline levels and long-term trends.
     Krypton-85 analysis began in January 1973 with sample collections and analyses being performed for 12
sampling locations. These locations were selected to provide atmospheric coverage of the United States with
considerations being given to the proximity to fuel reprocessing  plants, nuclear reactors, and wide geographic
coverage.
     Dry compressed air samples, collected at each location, are purchased from commercial air suppliers and
shipped to the EERF where the krypton-85 is cryogenically separated and counted in a liquid scintillation
system.
     The last Kr-85 results were for 1976, 1977, and 1979. They were published in Environmental Radiation
Data.:  Report 30.
                                                  19

-------
                                                                                         DATA  EPA
                                  ENVIRONMENTAL RADIATION
                            AMBIENT MONITORING SYSTEM (ERAMS)
    Section II. Water Program

    The ERAMS  water  program provides data on ambient radiation levels in the nation's rivers, streams,
and drinking water supplies.

                                            Surface Water

    Quarterly grab samples are taken downstream from operating or future nuclear facilities at 58 stations.
    Surface water samples are analyzed for tritium quarterly and specific gamma activity annually. Tritium
is a primary radioactive  pollutant from nuclear power plants and weapons production activities.
    Tritium  concentrations are determined  by liquid scintillation counting of distilled samples.  Gamma
scans are performed annually to determine levels of gamma emitting radionuclides.
    Table  10 contains the data for tritium concentrations for January - March  1989.  Table 11 contains the
surface water annual gamma results for April 1988.
                                                  20

-------
       Table 10
     Surface Water
Tritium Concentrations
   January - March 1989
Location
AL:DECATUR
AL:DOTHAN
AL : SCOTTSBORO
AR: LITTLE ROCK
CA : EUREKA
CA:SAN ONOFRE
CO:PLATTEVILLE
CT:EAST HADDAM
CT : WATERFORD
FL: CRYSTAL RIVER
FL:FT. PIERCE
FL: HOMESTEAD
GA:BAXLEY
IA: CEDAR RAPIDS
ID: BUHL
IL:E. MOLINE
IL: MORRIS
IL:ZION
KS:LEROY
LA: NEW ORLEANS
MA : PLYMOUTH
HD:CONOWINGO
MD:LUSBY
ME:WISCASSET
MI:BRIDGMAN
MI:CHARLEVOIX
MI: MONROE
MI: SOUTH HAVEN
MN:MONTICELLO
MN:RED WING
MS: PORT GIBSON
NC: CHARLOTTE
NC : SOUTHPORT
NE : RULO
NJ:BAYSIDE
NJ:OYSTER CREEK
NV: BOULDER CITY
Source
TENNESSEE RIVER
CHATTAHOOCHEE RIVER
TENNESSEE RIVER
ARKANSAS RIVER
HUMBOLDT BAY
PACIFIC OCEAN
SOUTH PLATTE RIVER
CONNECTICUT RIVER
LONG ISLAND SOUND
GULF OF MEXICO
ATLANTIC OCEAN
BISCAYNE BAY
ALTAMAHA RIVER
CEDAR RIVER
SNAKE RIVER
MISSISSIPPI RIVER
ILLINOIS RIVER
LAKE MICHIGAN
NEOSHO RIVER
MISSISSIPPI RIVER
CAPE COD BAY
SUSQUEHANNA RIVER
CHESAPEAKE BAY
MONTSEWAY BAY
LAKE MICHIGAN
LAKE MICHIGAN
LAKE ERIE
LAKE MICHIGAN
MISSISSIPPI RIVER
MISSISSIPPI RIVER
MISSISSIPPI RIVER
CATAWBA RIVER
ATLANTIC OCEAN
MISSOURI RIVER
DELAWARE RIVER
OYSTER CREEK
COLORADO RIVER
Date
Collected
01/04/89
01/11/89
01/04/89
01/03/89
01/17/89
02/16/89
01/04/89
01/20/89
01/20/89
01/17/89
01/11/89
01/24/89
01/11/89
01/09/89
01/19/89
01/09/89
01/08/89
03/31/89
02/18/89
01/11/89
01/05/89
01/24/89
01/10/89
01/10/89
01/15/89
01/06/89
01/12/89
01/15/89
01/13/89
01/17/89
01/17/89
01/10/89
01/06/89
01/17/89
01/10/89
01/19/89
01/10/89
nCi/1 ±2
-------
            Table 10 (continued)

               Surface Water
          Tritium Concentrations

            January - March 1989
Location
NY: CHELSEA
NY:OSSINING
NY:OSWEGO
OH: TOLEDO
OR:BRADWOOD
PA: DANVILLE
SC:ALLENDALE
SC: BROAD RIVER
SC:HARTSVILLE
TN:KINGSTON
TX:EL PASO
TX:MATAGORDA
VA:DOSWELL
VA: NEWPORT NEWS
WA:NORTHPORT
WA:RICHLAND
WI:TWO CREEKS
WI: VICTORY
WV: WHEELING
Source
HUDSON RIVER
HUDSON RIVER
LAKE ONTARIO
LAKE ERIE
COLUMBIA RIVER
SUSQUEHANNA RIVER
SAVANNAH RIVER
BROAD RIVER
LAKE ROBINSON
CLINCH RIVER
RIO GRANDE
COLORADO RIVER
NORTH ANNA RIVER
JAMES RIVER
COLUMBIA RIVER
COLUMBIA RIVER
LAKE MICHIGAN
MISSISSIPPI RIVER
OHIO RIVER
Date
Collected
01/04/89
01/18/89
01/31/89
01/04/89
01/09/89
01/25/89
01/31/89
01/03/89
01/06/89
01/09/89
02/03/89
01/18/89
01/12/89
01/18/89
01/08/89
01/26/89
01/16/89
01/10/89
03/16/89
nCi/1 ±2(7
0.2 0.2
0.4 0.2
0.3 0.2
0.1 0.2
0.1 0.2
0.2 0.2
4.6 0.2
0.4 0.2
1.1 0.2
1.5 0.2
0.2 0.2
0.1 0.2
5.5 0.2
0.1 0.2
0.2 0.2
0.1 0.2
0.3 0.2
0.3 0.2
0.2 0.2

-------
       Table 11
     Surface Water
Annual Gamma Analysis

       April 1988
Location
AL:DECATUR
AL:DOTHAN
AL:SCOTTSBORO
AR: LITTLE ROCK
CA: DIABLO CANYON
CA : EUREKA
CA:SAN ONOFRE
CA:SAN ONOFRE
CO : PLATTEVILLE
CT:EAST HADDAM
CT : WATERFORD
FL: CRYSTAL RIVER
FL:FT. PIERCE
FL: HOMESTEAD
GA:BAXLEY
IA: CEDAR RAPIDS
ID : BUHL
IL:E. MOLINE
IL: MORRIS
IL:ZION
KS:LEROY
LA: NEW ORLEANS
MA: PLYMOUTH
MA:ROWE
MD:CONOWINGO
MD:LUSBY
MEtWISCASSET
MI:BRIDGMAN
MI:CHARLEVOIX
MI: MONROE
MI: SO. HAVEN
MN:MONTICELLO
MN:RED WING
MS: PORT GIBSON
NC : CHARLOTTE
NC : SOUTHPORT
NE:RULO
Source
TENNESSEE RIVER
CHATTAHOOCHEE RIVER
TENNESSEE RIVER
ARKANSAS RIVER
PACIFIC OCEAN
HUMBOLDT BAY
PACIFIC OCEAN
PACIFIC OCEAN
SOUTH PLATTE RIVER
CONNECTICUT RIVER
LONG ISLAND SOUND
GULF OF MEXICO
ATLANTIC OCEAN
BISCAYNE BAY
ALTAMAHA RIVER
CEDAR RIVER
SNAKE RIVER
MISSISSIPPI RIVER
ILLINOIS RIVER
LAKE MICHIGAN
NEOSHO RIVER
MISSISSIPPI RIVER
CAPE COD BAY
DEERFIELD RIVER
SUSgUEHANNA RIVER
CHESAPEAKE BAY
MONTSEWAY BAY
LAKE MICHIGAN
LAKE MICHIGAN
LAKE ERIE
LAKE MICHIGAN
MISSISSIPPI RIVER
MISSISSIPPI RIVER
MISSISSIPPI RIVER
CATAWBA RIVER
ATLANTIC OCEAN
MISSOURI RIVER
Date
Collected
04/05/88
04/12/88
04/07/88
04/06/88
*03/30/88
*03/31/88
*05/20/88
*03/28/88
04/04/88
*06/09/88
*06/09/88
*03/28/88
*03/29/88
04/11/88
04/05/88
*03/22/88
04/21/88
04/06/88
04/24/88
+05/15/88
*03/29/88
04/11/88
04/06/88
*05/15/88
04/26/88
*03/22/88
04/05/88
04/06/88
*03/26/88
*03/28/88
04/07/88
04/05/88
04/14/88
04/14/88
04/06/88
04/05/88
04/07/88
Gamma
pCi/1 ±2
-------
  Table 11 (continued)

     Surface Water
Annual Gamma Analysis

       April 1988

Location
NJ:BAYSIDE
NJ: OYSTER CREEK
NV: BOULDER CITY
NY: CHELSEA
NY:OSSINING
NY:OSWEGO
OH: TOLEDO
OR:BRADWOOD
PA:DANVILLE
SC:ALLENDALE
SC: BROAD RIVER
SC:HARTSVILLE
TN:DAISY
TN: KINGSTON
TX:EL PASO
TX:MATAGORDA
VA:DOSWELL
VA: NEWPORT NEWS
WA:NORTHPORT
WA:RICHLAND
WI:TWO CREEKS
WI: VICTORY
WV: WHEELING

Source
DELAWARE RIVER
OYSTER CREEK
COLORADO RIVER
HUDSON RIVER
HUDSON RIVER
LAKE ONTARIO
LAKE ERIE
COLUMBIA RIVER
SUSQUEHANNA RIVER
SAVANNAH RIVER
BROAD RIVER
LAKE ROBINSON
TENNESSEE RIVER
CLINCH RIVER
RIO GRANDE
COLORADO RIVER
NORTH ANNA RIVER
JAMES RIVER
COLUMBIA RIVER
COLUMBIA RIVER
LAKE MICHIGAN
MISSISSIPPI RIVER
OHIO RIVER
Date
Collected
*05/10/88
04/21/88
04/04/88
*03/22/88
04/27/88
04/28/88
*03/21/88
04/21/88
04/27/88
04/28/88
04/20/88
04/19/88
04/05/88
04/05/88
*03/21/88
04/14/88
04/14/88
04/12/88
*05/18/88
*05/10/88
04/04/88
04/11/88
*06/09/88
Gamma
pCi/1 ±2
-------
                                           Drinking Water

    This program monitors ambient radiation levels in drinking water at 78 sites.  These data serve to assess
trends and anomalies in concentrations, and to compare with standards set forth  in  the EPA "National
Interim Primary  Drinking Water Regulations." These regulations provide for approval of supplies when
the combined radium-226 and radium-228 levels do  not exceed 5 pC'i/1, when the  gross alpha (excluding
radon and uranium) levels do not exceed 15 pCi/1, when tritium levels do not exceed  20,000 pCi/1, when the
stiontium-90 levels do not exceed 8 pCi/1,  and  when the gross beta levels do not exceed 50 pCi/1.
    Grab samples are taken  at the 78 sites which are either major population centers or selected nuclear
facility environs.
    The analyses include (a)  tritium on a quarterly  basis; (b) gross alpha, gross beta,  strontium-90, and
gamma on annual composites; (c.)  radium-226 if the gross alpha exceeds 2 pCi/1 and radium-228 if the
radium-226 falls  between 3 and 5 pCi/1; (d)  specific, iodine-131 on one quarterly sample per year'for each
station; and (e) an annual composite for plutonium-238, -239, and -240 and uranium-234, -235, and -238
for stations that demonstrate  gross  alpha levels greater than 2 pCi/1.
    Tritium  analyses are performed by scintillation counting of the distilled samples.  Gross beta and al-
pha are determined by evaporating an aliquot on a stainless steel planchet for  counting. Radium-226 is
determined by the standard emanation technique. Strontium—90 is determined by  beta counting a strontium
carbonate precipitate isolated by ion exchange.
    Table  12 contains the data in drinking water for January - March 1989.  Table 13 contains the 1-131 in
drinking water results for January - December  1988.
                                                 25

-------
       Table 12
    Drinking Water
Tritium Concentrations
   January - March 1989
Location
AK: FAIRBANKS
AL:DOTHAN
AL: MONTGOMERY
AL: MUSCLE SHOALS
AL:SCOTTSBORO
AR: LITTLE ROCK
CA: BERKELEY
CA:LOS ANGELES
CO: DENVER
CO:PLATTEVILLE
CT: HARTFORD
DC: WASHINGTON
DE: DOVER
FL: MIAMI
FL: TAMPA
GA:BAXLEY
GA: SAVANNAH
HI: HONOLULU
IA: CEDAR RAPIDS
ID:BOISE
ID: IDAHO FALLS
IL: CHICAGO
IL: MORRIS
KS:TOPEKA
LA: NEW ORLEANS
MA: LAWRENCE
MD: BALTIMORE
MD:CONOWINGO
ME : AUGUSTA
MI: DETROIT
MI: GRAND RAPIDS
MN: MINNEAPOLIS
MN:RED WING
MO: JEFFERSON CITY
MS: JACKSON
Date
Collected
01/20/89
01/11/89
01/09/89
01/04/89
01/04/89
01/06/89
01/04/89
01/09/89
01/04/89
01/04/89
01/04/89
01/06/89
01/03/89
01/23/89
01/10/89
01/11/89
03/14/89
01/17/89
01/03/89
01/04/89
01/19/89
01/02/89
01/06/89
01/03/89
01/05/89
01/11/89
02/03/89
01/24/89
01/17/89
01/10/89
01/12/89
01/10/89
01/17/89
01/05/89
01/17/89
nCi/1 ±2
-------
  Table 12 (continued)
    Drinking Water
Tritium Concentrations
   January - March 1989
Location
MS: PORT GIBSON
MT: HELENA
NC : CHARLOTTE
NC: WILMINGTON
ND: BISMARCK
HE: LINCOLN
NH: CONCORD
NJ:TRENTON
NJ:WARETOWN
NV:LAS VEGAS
NY: ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
OH : COLUMBUS
OH: EAST LIVERPOOL
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA: COLUMBIA
PA:HARRISBURG
PA: PITTSBURGH
PC: CRISTOBAL
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SC:HARTSVILLE
SC:JENKINSVILLE
SC: SENECA
TN: CHATTANOOGA
TN:KNOXVILLE
TX: AUSTIN
VA:DOSWELL
VA:LYNCHBURG
Date
Collected
01/17/89
01/04/89
01/10/89
02/03/89
01/03/89
01/04/89
01/03/89
01/06/89
01/19/89
01/06/89
01/03/89
01/04/89
01/04/89
02/28/89
01/24/89
02/01/89
01/04/89
01/04/89
01/17/89
01/10/89
01/05/89
01/05/89
02/01/89
01/03/89
01/05/89
02/09/89
01/04/89
01/30/89
01/20/89
01/24/89
01/31/89
01/03/89
02/21/89
01/13/89
01/06/89
nCi/1 ±2
-------
      Table 12 (continued)
        Drinking Water
    Tritium Concentrations
       January - March 1989
Location
VA: VIRGINIA BEACH
VI: ST. THOMAS
WA:RICHLAND
WA: SEATTLE
WI: GENOA CITY
WI:MADISON
Date
Collected
01/30/89^
01/19/89
01/26/89
01/04/89
01/09/89
01/05/89
nCi/1 ±2
-------
                  Table 13
Iocline-131 in Drinking Water Concentrations
            January  December 1988
Location
AL:DOTHAN
AL: MONTGOMERY
AL: MUSCLE SHOALS
AL : SCOTTSBORO
AR: LITTLE ROCK
CA : BERKELEY
CA:LOS ANGELES
CO: DENVER
CO : PLATTEVILLE
CT : HARTFORD
DE: DOVER
FL: MIAMI
GA:BAXLEY
GA: SAVANNAH
HI: HONOLULU
IA: CEDAR RAPIDS
ID: BOISE
ID: IDAHO FALLS
IL: MORRIS
IL:W. CHICAGO
KS:TOPEKA
LA: NEW ORLEANS
MA: LAWRENCE
MD:CONOWINGO
ME : AUGUSTA
MI: DETROIT
MI: GRAND RAPIDS
MN: MINNEAPOLIS
MN:RED WING
MS: JACKSON
MS: PORT GIBSON
MT : HELENA
NC : CHARLOTTE
ND: BISMARCK
NE: LINCOLN
NH: CONCORD
NJ:TRENTON
Date
Collected
04/13/88
04/04/88
10/05/88
10/07/88
04/06/88
10/05/88
10/05/88
04/05/88
07/05/88
03/28/88
09/28/88
01/04/88
04/05/88
07/22/88
01/05/88
07/05/88
01/13/88
07/06/88
04/11/88
01/04/88
01/04/88
01/06/88
04/20/88
01/12/88
05/06/88
07/11/88
03/25/88
04/05/88
04/14/88
04/14/88
04/14/88
04/04/88
01/06/88
01/04/88
01/07/88
10/03/88
10/12/88
pCi/1 ±2
-------
             Table 13 (continued)
Iodine-131 in Drinking Water Concentrations
            January - December 1988
Location
NJ:WARETOWN
NV:LAS VEGAS
NY : ALBANY
NY: NEW YORK CITY
NY: NIAGARA FALLS
NY: SYRACUSE
OH CINCINNATI
OH: COLUMBUS
OH: EAST LIVERPOOL
OH:PAINESVILLE
OH: TOLEDO
OK: OKLAHOMA CITY
OR: PORTLAND
PA: COLUMBIA
PA:HARRISBURG
PC: CRISTOBAL
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
SC:HARTSVILLE
SC:JENKINSVILLE
SC: SENECA
TN: CHATTANOOGA
TN:KNOXVILLE
TX: AUSTIN
VA:DOSWELL
VA:LYNCHBURG
VA: VIRGINIA BEACH
WA: HIGHLAND
WA : SEATTLE
WI: GENOA CITY
WI: MADISON
Date
Collected
05/12/88
01/07/88
04/11/88
04/06/88
01/04/88
12/08/88
01/07/88
04/06/88
04/12/88
01/04/88
01/01/88
01/05/88
07/15/88
01/14/88
01/11/88
10/11/88
01/13/88
04/14/88
01/04/88
04/19/88
04/18/88
07/13/88
09/28/88
10/03/88
11/08/88
01/06/88
01/04/88
10/26/88
05/10/88
04/07/88
01/11/88
01/06/88
pCi/1 ±2
-------
                                                                                        DATA  EPA
                                  ENVIRONMENTAL RADIATION
                           AMBIENT MONITORING SYSTEM (ERAMS)


    Section III. External Gamma Ambient Monitoring Program

    The external gamma monitoring program, which began in October 1978, provides a continuous measure-
ment of ambient gamma exposure rates, including cosmic, at selected sites throughout the continental United
States. Data from this program are used to evaluate fluctuations in natural background due to variations in
environmental conditions and to provide a means of monitoring any significant increases in ambient gamma
levels. The program consists of approximately 22 sites representing  wide geographic coverage throughout the
country.'  Although exposure measurements at these few sites are not totally representative  of nationwide
exposures, they do indicate national trends.
    The monitoring program  utilizes CaFjtMn  thermoluminescent dosimeters (TLD's).  These dosimeters
are commercially available glass-bulb type  dosimeters with energy compensating shields. A group of three
TLD's is located at each station or site. Dosimeters are annealed by the station operator prior  to positioning
in the field. The dosimeters are  returned to EERF for readout approximately every three months. Several
dosimeters are annealed by the station operator as controls and returned with the  exposed field dosimeters
to correct for any exposures accumulated during shipment.
    Table  14 contains the data for environmental gamma ambient monitoring program January   March
1989.
  ' Some of these sites may not return dosimeters each period and consequently the number of sites listed may vary slightly.

                                                 31

-------
                       Table 14
Environmental Gamma Ambient Monitoring Program
                  January - March 1989
Location
AL: MONTGOMERY
CA: BERKELEY
CO: DENVER
FL : ORLANDO
ID: BOISE
IL: CHICAGO
ND: BISMARCK
NJ:TRENTON
NM: SANTA FE
NV:LAS VEGAS
NY: NEW YORK
OR: PORTLAND
PA:HARRISBURG
PA: PITTSBURGH
RI: PROVIDENCE
SC:BARNWELL
SC: COLUMBIA
TN:KNOXVILLE
VA: RICHMOND
VT:MONTPELIER
Date Range
01/09/89-04/06/89
01/13/89-04/04/89
01/10/89-05/15/89
01/06/89-04/04/89
01/06/89-04/05/89
01/12/89-04/06/89
01/09/89-04/03/89
01/06/89-04/03/89
01/20/89-04/07/89
01/06/89-04/04/89
02/08/89-04/12/89
01/11/89-04/06/89
01/11/89-04/10/89
01/09/89-04/07/89
01/06/89-04/07/89
01/27/89-04/07/89
01/06/89-04/04/89
01/02/89-04/04/89
01/05/89-04/03/89
02/01/89-04/06/89
Integrated
Exposure
mR
18.8
14.9
46.5
15.4
27.6
18.6
19.0
28.8
27.5
18.0
15.3
18.6
15.6
27.4
27.3
19.4
25.5
21.4
18.1
13.6
Exposure
Rate
jtR/hr ±2er
9.0 69.9
7.7 9.9
15.5 6.9
7.3 8.7
12.9 10.5
9.2 7.1
9.4 14.9
13.8 24.9
14.9 6.5
8.5 7.2
10.1 5.8
9.1 5.0
7.3 11.7
13.0 12.9
12.5 7.6
11.7 9.0
12.1 5.9
9.7 6.2
8.6 7.5
8.8 7.4
      a = Sigma Counting Error (in percent).
                           32

-------
                                                                                       DATA  EPA
                                 ENVIRONMENTAL RADIATION
                           AMBIENT MONITORING SYSTEM (ERAMS)
    Section IV. Milk Program

                                          Pasteurized Milk

    This is a cooperative program with the Dairy and Lipid Products Branch, Milk Sanitation Section, Food
and Drug Administration.  Milk is a reliable indicator of the general population's intake of radionuclides
since it is consumed fresh by a large segment of the population and can contain several of the biologically
important radionuclides that result from environmental releases from nuclear activities.  A primary function
of this program is to  obtain  reliable monitoring data relative to-current radionuclide  concentrations and
determine any long-term trends.
    Monthly samples are collected at 65 sampling sites with one or more located in each state, Puerto Rico,
and the Panama Canal Zone.  The samples are composited, according to  production, from the major milk
suppliers representing  more than 80 percent of the milk consumed in a given population center.
    The samples are analyzed for gamma emitting nuclides, which include iodine-131, barium-140, cesium-
137, and potassium. All samples collected in July are analyzed for strontium-89 and strontium-90.  Also,
for the  first month of the  three  quarters beginning January, April and October,  10  regional composite
samples of milk made up from the states within each of EPA's 10 regions are analyzed for strontium-89 and
strontium-90.
    Iodine-131, barium-140, cesium-137, and potassium are determined by gamma spectral analysis.  Stron-
tium-89  and strontium-90 are determined by beta counting a total strontium  precipitate that has been
chemically separated by ion exchange.
    Tables 15-17 contain the concentrations of radionticlides in pasteurized milk for January - March 1989.
Table 18 contains the concentrations of strontium-90 and strontium-89 in pasteurized milk EPA Regional
Composites for January - March  1989.
                                                 33

-------
           Table 15

Concentrations of Radionuclides
      in Pasteurized Milk
          January 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CA: SACRAMENTO
CA:SAN FRANCISCO
CO: DENVER
CT: HARTFORD
DC: WASHINGTON
DE: WILMINGTON
FL: TAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS: WICHITA
KY: LOUISVILLE
LA: NEW ORLEANS
MA: BOSTON
MD: BALTIMORE
MI: DETROIT
MI: GRAND RAPIDS
MN: MINNEAPOLIS
MN:ST. PAUL
MO: ST. LOUIS
MS: JACKSON
MT: HELENA
NC : CHARLOTTE
ND:MINOT
NE: OMAHA
NH: MANCHESTER
NJ: TRENTON
NM : ALBUQUERQUE
NV:LAS VEGAS
NY: BUFFALO
Date
Collected
01/06/89
01/10/89
01/10/89
01/06/89
01/03/89
01/05/89
01/^31/89
01/09/89
01/04/89
01/04/89
01/05/89
01/09/89
01/03/89
01/04/89
01/10/89
01/03/89
01/03/89
01/18/89
01/03/89
01/06/89
01/09/89
01/06/89
01/05/89
01/03/89
01/07/89
01/04/89
01/06/89
01/03/89
01/04/89
01/09/89
01/27/89
01/05/89
01/09/89
01/04/89
01/03/89
01/11/89
01/17/89
K
g/1 ±2
-------
                   Table 15 (continued)

            Concentrations of Ractionuclides
                   in Pasteurized Milk

                       January 1989
Location
NY: NEW YORK CITY
NY: SYRACUSE
OH: CINCINNATI
OH: CLEVELAND
OK: OKLAHOMA CITY
OR : PORTLAND
PA: PHILADELPHIA
PA: PITTSBURGH
PC: CRISTOBAL
PR: SAN JUAN
SC: CHARLESTON
SD: RAPID CITY
TN: CHATTANOOGA
TN: MEMPHIS
TX: AUSTIN
TX:FT. WORTH
VT: BURLINGTON
WA : SEATTLE
WA: SPOKANE
WI: MILWAUKEE
WY:LARAMIE
Date
Collected
01/04/89
01/03/89
01/27/89
01/10/89
01/24/89
01/04/89
01/03/89
01/03/89
01/26/89
01/23/89
01/19/89
01/06/89
01/03/89
01/25/89
01/05/89
01/05/89
01/06/89
01/04/89
01/10/89
01/03/89
01/06/89
K
g/1 ±2
-------
            Table 16
Concentrations of Raclionuclicles
      in Pasteurized Milk
          February 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CA: SACRAMENTO
CA:SAN FRANCISCO
CT: HARTFORD
DC: WASHINGTON
DE: WILMINGTON
FL: TAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
ID: IDAHO FALLS
IL: CHICAGO
IN: INDIANAPOLIS
KS: WICHITA
KY: LOUISVILLE
LA: NEW ORLEANS
MD: BALTIMORE
ME : PORTLAND
MI: DETROIT
MI: GRAND RAPIDS
MN: MINNEAPOLIS
MN:ST. PAUL
MO: KANSAS CITY
MO: ST. LOUIS
MS: JACKSON
MT: HELENA
NC: CHARLOTTE
ND:MINOT
NE: OMAHA
NH: MANCHESTER
NJ:TRENTON
NV:LAS VEGAS
NY: BUFFALO
NY: NEW YORK CITY
Date
Collected
02/09/89
02/07/89
02/07/89
02/03/89
02/01/89
02/10/89
02/06/89
02/08/89
02/08/89
02/07/89
02/02/89
02/07/89
02/02/89
02/03/89
02/06/89
02/06/89
02/13/89
02/06/89
02/17/89
02/03/89
02/01/89
02/09/89
02/06/89
02/21/89
02/07/89
02/10/89
02/08/89
02/13/89
02/23/89
02/13/89
02/21/89
02/10/89
02/06/89
02/10/89
02/13/89
02/06/89
02/06/89
K
g/1 ±2
-------
                   Table 16 (continued)

            Concentrations of Raclionuclides
                   in Pasteurized Milk

                       February 1989
Location
NY: SYRACUSE
OH: CINCINNATI
OH CLEVELAND
OK: OKLAHOMA CITY
OR: PORTLAND
PA PHILADELPHIA
PA PITTSBURGH
PC: CRISTOBAL
PR: SAN JUAN
SD: RAPID CITY
TN: CHATTANOOGA
TN:KNOXVILLE
TN: MEMPHIS
TX:FT. WORTH
VT: BURLINGTON
WA: SEATTLE
WA: SPOKANE
WI: MILWAUKEE
WV: CHARLESTON
WY:LARAMIE
Date
Collected
02/06/89
02/23/89
02/14/89
02/27/89
02/07/89
02/06/89
02/13/89
02/23/89
02/13/89
02/10/89
02/06/89
02/06/89
02/23/89
02/07/89
02/02/89
02/07/89
02/08/89
02/20/89
02/06/89
02/09/89
K
g/1 ±2
-------
           Table 17
Concentrations of Radionuclides
      in Pasteurized Milk
           March 1989
Location
AL: MONTGOMERY
AR: LITTLE ROCK
AZ: PHOENIX
CA:LOS ANGELES
CArSAN FRANCISCO
CO: DENVER
CT: HARTFORD
DC:WASHINGTON
DE: WILMINGTON
FL: TAMPA
GA: ATLANTA
HI: HONOLULU
IA:DES MOINES
IL: CHICAGO
IN: INDIANAPOLIS
KS: WICHITA
KY: LOUISVILLE
MA: BOSTON
MD: BALTIMORE
MI: DETROIT
MI: GRAND RAPIDS
MN MINNEAPOLIS
MN:ST. PAUL
MO:KANSAS CITY
MO: ST. LOUIS
MS: JACKSON
MT: HELENA
NC: CHARLOTTE
ND:MINOT
NE: OMAHA
NH: MANCHESTER
NJ: TRENTON
NV:LAS VEGAS
NY: BUFFALO
NY: NEW YORK CITY
NY: SYRACUSE
OH: CINCINNATI
Date
Collected
03/09/89
03/07/89
03/08/89
03/08/89
03/09/89
03/31/89
03/06/89
03/10/89
03/15/89
03/08/89
03/13/89
03/06/89
03/06/89
03/07/89
03/06/89
03/20/89
03/07/89
03/16/89
03/03/89
03/08/89
03/13/89
03/13/89
03/06/89
03/08/89
03/08/89
03/07/89
03/09/89
03/13/89
03/28/89
03/08/89
03/04/89
03/08/89
03/09/89
03/13/89
03/06/89
03/06/89
03/29/89
K
g/1 ±2cr
1.60 0.12
1.35 0.12
1.33 0.12
1.62 0.12
1.50 0.09
1.51 0.16
1.50 0.08
1.38 0.12
1.26 0.12
1.50 0.12
1.30 0.12
1.43 0.13
1.51 0.12
1.51 0.13
1.66 0.13
1.27 0.12
1.41 0.09
1.34 0.12
1.61 0.13
1.54 0.12
1.37 0.12
1.39 0.12
1.38 0.09
1.61 0.12
1.42 0.12
1.53 0.12
1.39 0.12
1.42 0.22
1.62 0.13
1.43 0.12
1.39 0.12
1.68 0.09
1.48 0.12
1.37 0.12
1.43 0.12
1.34 0.12
1.41 0.13
137Cs
pCi/1 ±2a
6 7
2 9
1 9
-2 7
5 6
0 10
1 5
-3 9
2 9
6 7
4 9
-1 9
5 7
0 9
6 7
0 9
2 6
2 9
-2 7
2 7
-2 9
4 9
8 6
1 7
-2 7
6 7
0 9
5 14
-3 7
-6 6
6 9
2 5
0 7
1 9
0 7
-1 9
3 9
140Ba
pCi/1 ±'2a
-7 8
-8 9
1 9
-11 8
-7 6
-9 13
-4 6
-4 9
-16 10
-1 8
-10 9
-3 9
2 8
-5 9
-6 8
-8 9
-6 6
-7 9
5 8
-6 8
-10 9
0 9
-7 6
-11 8
-4 8
-3 8
-6 9
-2 19
-1 8
1 8
-5 9
-7 6
-6 8
-6 9
-4 8
-5 9
-4 9
131j
pCi/1 ±2cr
-1 7
2 7
6 7
2 7
3 5
4 11
2 5
3 7
10 7
0 7
4 7
5 7
-2 7
3 7
-1 7
5 7
3 5
0 7
-5 7
-2 7
0 7
0 7
5 5
0 7
2 7
0 7
6 7
6 15
-1 7
-2 7
7 7
2 5
-6 7
4 7
0 7
6 7
1 7
               38

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                  Table 17 (continued)

            Concentrations of Radionuclides
                  in Pasteurized Milk

                        March 1989
Location
OH: CLEVELAND
OK: OKLAHOMA CITY
OR: PORTLAND
PA: PHILADELPHIA
PA: PITTSBURGH
PC: CRISTOBAL
PR:SAN JUAN
SC: CHARLESTON
SD: RAPID CITY
TN: CHATTANOOGA
TN:KNOXVILLE
TN: MEMPHIS
TX: AUSTIN
TX:FT. WORTH
VA: NORFOLK
VT: BURLINGTON
WA: SEATTLE
WI: MILWAUKEE
WV : CHARLESTON
WY:LARAMIE
Date
Collected
03/28/89
03/20/89
03/06/89
03/06/89
03/08/89
03/29/89
03/10/89
03/13/89
03/07/89
03/06/89
03/06/89
03/29/89
03/03/89
03/09/89
03/01/89
03/08/89
03/07/89
03/06/89
03/07/89
03/08/89
K
g/1 ±1
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                      Table 18

Strontium-90 and Strontinm-89 in Pasteurized Milk
              EPA Regional Composites

                  January - March 1.989
EPA
Region
I
II
III
IV
V
VI
VII
VIII
IX
X
Date
01/08/89
01/10/89
01/04/89
01/08/89
01/07/89
01/06/89
01/08/89
01/10/89
01/06/89
01/07/89
90Sr
pCi/1 ±2
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                                          Carbon-14 in Milk

    Nine stations, chosen for wide geographical distribution, contribute milk samples for annual analysis of
carbon-14. These samples are monitored for carbon-14 levels in the food chain resulting from nuclear testing.
The pasteurized milk is freeze-dried and the resulting powder is pelletized for ease of combustion. Analysis
consists of combusting the samples and measuring released carbon dioxide through liquid scintillation. The
last carbon-14 results were for samples collected during April-May  1982 and March-May 1987. They were
published in Environmental Radiation Data: Report 54•
                                                 41

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    Environmental Radiation Data (ERD)  is published quarterly (January, April, July, October)  by the
U.S. Environmental Protection Agency's Office of Radiation Programs.
    Requests for information concerning publication and distribution of ERD should be directed to:

                                         Charles M. Petko
                                     Technical Support Branch
                              Eastern Environmental Radiation Facility
                                         1890 Federal Drive
                                   Montgomery, Alabama  36109

    Requests for information concerning the operation of ERAMS should be directed to:

                                      Jon A. Broadway, Chief
                             Monitoring and Analytical Services Branch
                              Eastern Environmental Radiation Facility
                                         1890 Federal Drive
                                   Montgomery, Alabama  36109
                                              or to:
                                       Robert S. Dyer, Chief
                            Environmental Studies and Statistics Branch
                             Analysis and Support Division (ANR-461)
                               U. S. Environmental Protection Agency
                                       Waterside Mall East
                                         401 M Street, SW
                                      Washington, DC 20460

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