ML102030236
| ML102030236 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 12/31/2008 |
| From: | State of WI, Dept of Health Services |
| To: | Office of Information Services |
| References | |
| FOIA/PA-2010-0009 | |
| Download: ML102030236 (19) | |
Text
State of Wisconsin 2008 Prairie Island Environmental Radioactivity Survey Wisconsin Department of Health Services Division of Public Health Bureau of Environmental and Occupational Health Radiation Protection Section P.O. Box 2659 Madison, Wisconsin 53701 A
Table of Contents Page Introduction I
WI DHS Prairie Island Environmental Monitoring I
Sampling Program Program Modifications 1
Laboratory Services and Quality Assurance I
Detection Limits I
Reporting of Sample Analysis Results 2
Results & Discussion 5
References 7
Sample Activity Summary 8
ii
List of Tables Page Table 1.
WI DHS Prairie Island environmental monitoring sampling sites.
4 Table 2.
Sample collection summary and required analyses.
4 Table 3.
Missing Sample Report.
5 Table 4.
Sample activity summary for the WI DHS Prairie Island environmental 8
monitoring program.
Table 6.
WI DHS air particulate gross beta and air iodine (1-131) results from the 11 the Prairie Island environmental monitoring program.
Table 6.
WI DHS gamma isotopic results from the quarterly composite of air 13 particulate filters for the Prairie Island environmental monitoring program.
Table 7.
WI DHS TLD network for the Prairie Island environmental monitoring 14 program.
Table 8.
WI DHS results for precipitation samples collected for the Prairie Island 14 environmental monitoring program.
Table 9.
WI DHS results for surface water samples collected for the Prairie Island 15 environmental monitoring program.
Table 10.
WI DHS results for fish samples collected for the Prairie Island 16 environmental monitoring program.
Table 11.
WI DHS results for well water samples collected for the Prairie Island 16 environmental monitoring program.
Table 12.
Wi DHS results for milk samples collected for the Prairie Island 17 environmental monitoring program.
Table 13.
WI DHS results for vegetation samples collected for the Prairie Island 19 environmental monitoring program.
Table 14.
WI DHS results for soil samples collected for the Prairie Island 20 environmental monitoring program.
List of Figures Figure 1.
Location of WI DHS environmental monitoring sites for the Prairie Island 3
Monitoring program.
iii
State Of Wisconsin DHS 2008 Prairie Island Environmental Radioactivity Survey Introduction Wisconsin Public Health Statues 254.41 mandates the Department of Health Services to conduct environmental radiation monitoring around the nuclear power facilities that impact Wisconsin. This environmental monitoring report is for the Prairie Island nuclear generating plant for the calendar year January - December 2008 and provides a description and results of this environmental monitoring program.
WI DHS Prairie Island Environmental Monitoring Sampling Program The WI DHS environmental monitoring program consists of the collection of various types of samples from the air, water and terrestrial exposure pathways. The sampling program included samples of air, precipitation, ambient gamma radiation (TLD), surface water, fish, soil, milk, well water and vegetation that are collected from selected locations at planned sampling intervals.
Table 1 is. a listing of sampling sites and includes a description, direction and distance from the monitored power plant. Table 2 provides a listing of types of samples collected, sites where samples are collected, the number of samples collected, number of samples that were missed and a listing of the required analyses. Table 3 provides an explanation of missing samples or non-routine sample analyses. Figure 1 is a map showing the location of each environmental sampling site.
Program Modifications There were no program modifications for 2008.
Laboratory Services and Quality Assurance The analysis of the samples is performed under contract with the State Laboratory of Hygiene (SLH).
SLH maintains a quality assurance program. Analytical procedures provide for routine replicate analyses to verify methods and instrument operation. Traceable sources are used to regularly calibrate the counters and daily performance checks are made between calibrations. In addition, quality control charts are maintained on the counters.
SLH participates in the Environmental Resource Associates' Proficiency Testing program and has performed satisfactorily over the report period. Proficiency testing results are available from the State Laboratory of Hygiene.
Detection Limits Detection limits, required by WI DHS, will be expressed as a lower limit of detection (LLD).* The required WI DHS LLD as indicated in Table 4 under the heading "LLD" is an "a priori" estimate of the capability for detecting an activity concentration by a given measurement system, procedure, and type of sample. Counting statistics of the appropriate instrument background are used to compute the LLD for each specific analysis. Using 4.66 times the standard deviation (Sb) of the instrument background, the LLD for each specific analysis is defined at the 95% Confidence Level.
The LLD for each radioisotope listed in Table 4 has been calculated from the following equation:
4.66 Sb LLD =
E
- V *2.22
- Y
- S
- exp(-dt)
Where:
LLD is the "a priori" lower limit of detection as defined above, as picocuries per unit mass or volume, Sb is the standard deviation of the background counting rate or of the counting rate of blank sample as appropriate, as counts per minute, E
is the counting efficiency, as counts per disintegration, V
is the sample size in units of mass or volume, 2.22 is the number of disintegrations per minute per picocurie, Y
is the fractional radiochemical yield, when applicable, S
is the self-absorption correction factor, d
is the radioactive decay constant for the particular radionuclide, and t
for environmental samples is the elapsed time between sample collection, or end of the sample collection period, and time of counting.
Typical values for E, V, Y and dt have been used to calculate the LLD.
Reporting of Sample Analysis Results Results for specific analyses will be reported as either a "less than" (<) value or an actual activity value.
The reporting of results in Table 4 under the heading "Range" and in Tables 5-14 are "a posteriori" calculations based on the actual analysis performed using the actual sample values for E, V, Y and dt.
Typically the reported "less than" (<) results are lower than the required WI DHS LLD indicating that the required WI DHS LLD has been met.
An actual activity value will be accompanied by an uncertainty term for that analysis. The uncertainty term is a plus or minus counting uncertainty term at the 2 sigma (95%) confidence interval and is printed as (+- or +). Examples and explanations of data reporting are:
Example Nuclide Activity reported 1
137Cs
< 10 pCi/liter 2
137Cs 15 + 3 pCi/liter In example I we can be 95% confident that the sample. activity, if any, is less than the LLD of 10 pCi/liter. In example 2 we can be 95% confident that the actual sample activity is greater than the LLD for that analysis and is between 12 and 18 pCi/liter.
2
Figure 1. Location of WI DHS environmental monitoring sites for the Prairie island monitoring program 3
Table 1. WI DHS Prairie Island environmental monitoring sampling sites.
Sample site PRI-la PRI-b PRI-2 PRI-3 PRI-4a PRI-4b PRI-5 PRI-6a PRI-6b PRI-7 PRI-8 PRI-9 PRI-10 PRI-11 PRI-12 PRI-13 PRI-14 PRI-15 PRI-T30 PRI-T31 PRI-T32 PRI-T33 PRI-T34 PRI-T35 PRI-T36 PRI-T37 PRI-T38 PRI-T39 Distance and direction (miles) 11.6 NW 11.6 NW 3.6 ESE 10.9 NE 8.7 ESE 8.7 ESE 4.8 ESE 1.9 NNE 1.8 NNE 11.9 E 3.4 N 6.6 ESE 2.6 NE 4.0 NNE 11.1 NNW 3.8 E 13.8 N 13.9 N 1.9 N 1.7 NNE 1.8 ENE 4.4 N 4.7 NE 5.2 E 4.8 ESE 10.3 NE 8.9 ESE 11.6 NW Location description Prescott; air site Prescott; harbor area Trenton Ellsworth (discontinued 07101196)
Bay City park Bay City, Hwy 35 Hager City Diamond Bluff; Pierce County highway shed Diamond Bluff cemetery Junction of Hwy 35 & Cty D (discontinued 07/01/96)
Station 2 - farm Bay City substation on Hwy 35 Welch farm D. Dosdall farm (discontinued in March, 1995)
S. Rohl farm (discontinued in October, 1999)
Christiansen farm A. Huppert farm (discontinued in February 2004)
R. Peterson farm Diamond Bluff Diamond Bluff 290th Avenue Hwy 35, Thomas Killian residence Cty K and 840th Street Cty W and 790th Street Hager City Ellsworth Bay City, Hwy 35 Prescott Table 2. Sample collection summary and required analyses for 2008.
Sample Type air particulate air iodine precipitation TLD surface water fish vegetation soil well water milk Collection and Frequency C/BW C/BW C/BW C/Q G/SA G/SA G/SA GISA GISA G/M Site locations la, 6a, 9 la, 6a, 9 la, 9 T30 - T39 lb, 2,4a Number of Samples Collected 78 Number of Sample Deviations 0
0 0
0 0
78 12 40 6
Required Analyses GA, GB, GI GI GB, H direct exposure GA, GB, GI, Sr, H GI GA, GB, GI GA, GB, GI GA. GB, H GI, I, Sr upstream, downstream Ib, 4b, 5, 6a, 8, 9 lb, 4b, 5, 6a, 8, 9 4a, 5, 6b 10, 13,15 4
12 12 6
24 0
0 0
0 0
Collection type: C/ = continuous; G/ = grab Frequency: 1W = weekly; /M = monthly; IQ = quarterly; /A = annually; /BW = bi-weekly; /SA = semi-annually Required analyses: GA = gross alpha; GB = gross beta; GI = gamma isotopic; Sr = strontium; I = iodine; H = tritium 4
Table 3. WI DHS missing sample report or non-routine analyses for 2008.
Sample type Date Site Explanation There were no missed samples or non-routine analyses for 2008.
Results And Discussion Air Particulate A summary of reported activities by WI DHS for air particulate samples is included in Table 4. Results from the individual sample analyses are listed in Tables 5-6.
From the individual activities or quarterly averages for gross beta activities it may be noted that there are no significant differences between sites at different distances from the Prairie Island facility. With no significant difference with distance from the Prairie Island site, an increase in gross beta activity attributable to the Prairie Island plant operation is not evident.
The gamma isotopic analysis of the quarterly air particulate filter composites detected only small amounts of the radioisotopes listed in Table 4. Beryllium-7 (TBe), detected in all composites, is a naturally occurring radioisotope that is constantly produced through nuclear reactions between cosmic rays and nuclei in the atmosphere and is detected in air composites from other areas of the state.
Influence by the Prairie Island nuclear generating facility on air quality is not evident from air particulate analysis.
Air Iodine A summary of reported activities by WI DHS for air iodine samples is included in Table 4. Results from the individual sample analyses are listed in Table 5.
Air iodine measurements were all below the LLD of 0.07 pCi/mi3 for all sites.
Direct Radiation - Thermoluminescent Dosimeters (TLD's)
A summary of reported activities by WI DHS for direct radiation is included in Table 4. Results from the individual sample analyses are listed in Table 7.
Direct radiation (TLD) data for 2008 from the WI DHS network was comparable for all sites. Significant differences in exposure were not noticed at different distances from the Prairie Island nuclear facility.
The average quarterly exposure from the ten sites located within Wisconsin was 15.2 + 2.1 milliroentgens. The average quarterly exposure for 2008 is at background levels and is comparable to other areas within Wisconsin.
5
Precipitation A summary of reported activities by WI DHS for precipitation is included in Table 4. Results from the individual sample analyses are listed in Table 8.
The gross beta activity in precipitation was within the normal range of activity when compared to previous year's data.
Surface Water A summary of reported activities by WI DHS for surface water samples is included in Table 4. Results from the individual sample analyses are listed in Table 9.
The surface water samples showed no unusual activities and are at background levels comparable to previous years. From the gamma isotopic analysis all radioisotopes were below their respective LLD.
All reported activities for gross beta, gross alpha and tritium (3H), except for one tritium (3H) activity at site PRI-2, are at background levels. The reported activity at PRI-2 is a site closest to the plant and could possibly be attributed to a Prairie Island waste release. The surface water samples uniformly show activities well below state or federal standards.
Fish A summary of reported activities by WI DHS for fish samples is included in Table 4. Results from the individual sample analyses are listed in Table 10.
The fish samples showed no unusual activities. Naturally occurring potassiurm-40 (40K) was detected in all samples. All other radioisotopes were below their respective LLD.
Well Water A summary of reported activities by WI DHS for well water samples is included in Table 4. Results from the individual sample analyses are listed in Table 11.
The well water samples showed no unusual gross alpha and gross beta activities and all activities for tritium (3H) were less than its LLD. The activity levels are all below state and federal standards.
Milk A summary of reported activities by WI DHS for milk samples is included in Table 4. Results from the individual sample analyses are listed in Table 12.
Analysis of the milk samples showed no unusual activities. Naturally occurring potassium-40 (40K) was detected in all samples. The detected activities for strontium-90 (90Sr) are attributable to residual fallout from previous atmospheric nuclear weapons testing and were also detected in previous years at similar activity levels.
Vegetation A summary of reported activities by WI DHS for vegetation samples is included in Table 4. Results from the individual sample analyses are listed in Tables 13.
Analysis of the vegetation samples showed no unusual activities. The gamma isotopic analysis detected only small amounts of the naturally occurring radioisotopes beryllium-7 (7Be) and potassium-40 (40K) listed in Table 4. All other radioisotopes were below their respective LLD.
6
Soil A summary of reported activities by WI DHS for soil samples is included in Table 4. Results from the individual sample analyses are listed in Table 14.
Analysis of the soil samples showed no unusual activities. The gamma isotopic analysis detected only small amounts of the radionuclides listed in Table 4. Potassium-40 (40K) is a naturally occurring radioisotope. The reported activities for cesium-i 37 (137Cs) were also detected in previous years and are largely attributable to fallout from previous atmospheric nuclear weapons testing. Naturally occurring radioisotopes such as radium-226 (226Ra), bismuth-214 (214Bi), lead-214 (14 Pb), actinium-228 (228Ac), bismuth-212 (212Bi) and lead-212 (212Pb) from the naturally occurring uranium-238 (238U) and thorium-232 (232Th) decay series are commonly detected but have not been quantified or reported.
Dose to an Average Individual Federal regulations 10 CFR 20, 10 CFR 50 Appendix I and 40 CFR 190 restrict the annual exposure of the population from all parts of the nuclear fuel cycle, including nuclear power plants. Doses resulting from gaseous and liquid effluent releases from the Prairie Island nuclear generating facilities are less than the limits as stated in these Federal regulations.
The WI DHS limits for permissible levels of radiation exposure from external sources in unrestricted areas is defined in the Wis. Adm. Code section HFS 157.23. Doses resulting from gaseous and liquid effluent releases from the Prairie Island nuclear generating facilities are less than the limits as stated in Wis. Adm. Code section HFS 157.23.
References State of Wisconsin, Wisconsin Administrative Code, HFS 157.23 U.S. Environmental Protection Agency, Environmental Radiation Requirements for Normal Operations of Activities in the Uranium Fuel Cycle, EPA 520/4-76-016, 40 CFR Part 190, November 1976.
U.S. Nuclear Regulatory Commission, Title 10, Part 20.
U.S. Nuclear Regulatory Commission, Title 10, Part 50, Appendix I.
7
Table 4. Sample activity summary for the Prairie Island environmental monitoring program for 2008.
Sample type (units)
LLD Number of samples a Analysis Range air particulate (pCi/m3) 0.005 0.020 0.002 0.002 0.005 0.002 0.005 0.002 0.005 0.002 0.015 0.020 0.002 0.002 0.030 0.020 0.002 0.005 78 / 78 12/12 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 12/0 78/0 air iodine (pCi/m 3) 0.07 3.0 3.0 3.0 3.0 300 2.0 1.0 gross beta gamma isotopic Be-7 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 1-131 Cs-1 34 Cs-1 37 Ba-140 La-140 Ce-141 Ce-144 1-131 gross beta (sol) gross beta (insol) gross alpha (sol) gross alpha (insol)
H-3 Sr-89 Sr-90 gamma isotopic Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 0.009 - 0.039 0.042 - 0.081
< 0.0005
< 0.0005
< 0.0013
< 0.0005
< 0.0013
< 0.0007
< 0.0011
< 0.0005
< 0.0038
< 0.0022
< 0.0004
< 0.0005
< 0.0035
< 0.0020
< 0.0007
< 0.0024
< 0.030
< 2.6 - 4.7
< 2.4 - 1.6
< 2.1 - 4.0
< 1.3
< 180 - 1790
< 0.8
< 0.4
<8
<9
< 19
<11
< 22
<9
<14
<10
<9
<8
< 29
<14 15 15 30 15 30 15 30 15 15 15 60 15 6/5 6/1 6/3 6/0 6/2 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 6/0 8
Table 4. Sample activity summary for the Prairie Island environmental monitoring program for 2008.
9
Table 7. WI DHS TLD network for the Prairie Island environmental monitoring program.
Date Placed:
Date Removed:
Days in the Field:
01/09/08 04/09/08 91 04/09108 07/09/08 91 07/09/08 10/08/08 91 10/08/08 01/14/09 98 Individual quarterly date is reported as : mR / Standard Quarter + 2 sigma counting error.
TILD sites that are located 0 - 2 miles from the Prairie island facility.
T30 T31 T32 Quarterly average +- s.d.
13.5 +- 0.7 13.1 +- 0.9 13.7 +- 0.9 13.4 +- 0.3 13.9 +- 0.7 13.9 +- 0.9 14.0 +- 1.0 13.9 +- 0.1 TILD sites that are located 2-5 miles from the Prairie island facility T33 T34 T35 T36 Quarterly average +- s.d.
16.7 +- 0.6 17.0 +- 0.7 15.2 +- 0.6 13.0 +- 0.6 15.5 +- 1.8 17.3 +- 0.7 17.7 +- 0.6 15.7 +- 1.0 16.5 +- 0.9 16.8 +- 0.9 13.5 +- 0.7 12.9 +- 0.7 14.4 +- 0.6 13.6 +- 0.8 16.4 +- 0.6 17.4 +- 0.5 16.2 +- 0.6 13.8 +- 0.4 16.0 +- 1.5 14.2 +- 1.3 13.0 +- 0.4 12.9 +- 0.9 13.4 +- 0.7 16.5 +- 0.5 16.0 +- 0.7 16.5 +- 1.1 16.3 +- 0.3 19.8 +- 0.5 20.4 +- 0.5 18.2 +- 1.1 19.2 +- 0.7 19.4 +- 0.9 17.1 +- 0.6 14.8 +- 0.8 14.9 +- 0.9 15.6 +- 1.3 TLD sites that are located greater than 5 miles from the Prairie island facility T37 13.7 +- 1.0 14.3 +- 0.7 T38 13.3 +- 0.5 12.3 +- 0.8 T39 12.9 +- 0.8 12.4 +- 0.8 Quarterly average +- s.d.
13.3 +- 0.4 13.0 +- 1.1 Table 8. WI DHS analysis results for precipitation samples collected for the Prairie Island environmental monitoring program.
Measurements in units of nCi/m2 monthly composite sample Collection inches 01/23/08 0.55 02/22/08 0.27 03/19/08 0.64 04/16/08 2.57 05/18/08 4.23 06/29/08 5.15 07/26/08 2.73 08/22/08 1.59 09/17/08 2.55 10/17/08 1.79 11/17/08 1.65 12/27/08 1.02 gross beta 0.13 +- 0.03 0.05 +- 0.01 0.23 +- 0.03
< 0.16 0.19 +- 0.10 0.24 +- 0.14
< 0.10
< 0.10
< 0.16 0.12 ÷-0.07 0.13 +- 0.07 0.13 +- 0.05 tritium
- 2.5 1.2
- 2.9 12 19 24
- 12
- <7.7 12
- 8.6
- 8.0
- 4.9 14
Table 9. WI DHS analysis results for surface water samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/liter Site:
PRI-1 PRI-2 PRI-4 PRI-1 PRI-2 PRI-4 Collection date:
gross alpha-sol gross beta-sol gross alpha-insol gross beta-insol H-3
- Sr-89
- gamma isotopic Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-137 Ba-140 La-140 06/03/08
< 2.1 1.7 +- 1.1 1.1 1.2 180
< 0.7
< 0.1 06103/08 4.0 +-
2.0 3.5 +- 0.8 1.1 1.1 180 0.8 0.4 06/03/08 4.0 +- 2.0 2.9 +- 0.9
< 1.3 1.6 +- 0.8 180
< 0.6
< 0.4 6
6 11 7
15 6
11 8
7 6
27 9
8 8
19 8
22 8
12 8
8 7
29 14 6
6 13 7
17 6
11 6
6 6
18 09/16/08
< 1.9
< 2.6 1.1
< 2.4
< 180
< 0.4
< 0.4
<6
<6
< 14
< 8
< 17
< 6 11
<8
<7
<7
< 23 4.2 +-
1790 +-
2.0 1.3 1.1 2.4 140 0.4 0.3 4.0 +-
4.7 +-
350 +-
09/16/08 09/16/08 2.0 1.4 1.1 2.4 120 0.4 0.3 7
< 6 12
< 7 17
< 7
< 10
< 8
< 7
< 6
< 25 11
< 8
< 9 15 11
< 21
< 9 14 10
<9
< 8
- 27 14 11
< 11 Radioisotopes other than those reported were not detected.
15
Table 10. WI DHS analysis results for fish samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/kilogram (wet)
Collection Location Type gamma isotopic K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 05/12/08 downstream white bass 05/15/08 upstream white bass 09/15/08 downstream white bass 09/17/08 upstream white bass 2610 +-
120 17 22 70 8
44 44, 39 15 13 2190.+- 130 20 27 80 21 60 46 47 18 14 3000 +- 200 18 35 80 29 80 45 60 27 28 3100 +- 200 17 27 120 31 110 26 33 22 19 Radioisotopes other than those reported were not detected.
Table 11. WI DHS analysis results for well water samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/liter PRI-4 PRI-5 PRI-6 PRI-4 PRI-5 PRI-6 Collection date:
06/03/08 06/03/08 06/03/08 09/16/08 09/16/08 09/16/08 gross alpha
< 2.4
< 2.5
< 2.7
< 1.9
< 1.9
< 2.0 gross beta 1.6 +- 0.9 1.7 +- 0.8
< 1.6
< 1.4
< 1.1
< 1.1 H-3
< 180
< 180
< 180
< 180
< 180
< 180 16
Table 12. WI DHS analysis results for milk samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/liter Location PRI-13 Collection date:
01110108 1-131 0.
Sr-90 1.1 +- 0.
gamma isotopic K-40 1320 +- 9(
< 1 Co-58
< 1I Fe-59
< 2' Co-60
< 1; Zn-65
< 21 Nb-95
< 1 Zr-95
< 2!
1-131
< 1 Cs-134 I
< 1 Ba-140
< 3 La-140
< I 3
2 4
2 4
2 9
0 5
7 2
PRI-10 02106108
< 0.4 1.1 +- 0.3 PRI-13 03126108 0.9 +- 0.3 PRI-10 04/10/08
< 0.2 0.4 +- 0.2 PRI-13 05113108
< 0.4 0.9 +- 0.3 PRI-10 06/12/08
< 0.4 1500 +-
80 10 10 20 14 32 10 19 10 10 12 34 14 1370 +- 80 11 10 25 11 31 11 18 13 12 10 42 14 1330 +-
60 7
8 17 7
21 8
12 9
7 8
31 15 1420 +- 60 7
6 14 8
18 6
11 7
7 8
23 9
1440 +-
60 6
6 14 7
16 7
11 10 6
5 30 15 Location Collection date:
1-131 Sr-90 gamma isotopic K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-137 Ba-140 La-140 PRI-1 3 07/21/08
< 0.2 1.2 +- 0.3 PRI-10 08/12/08 0.8 +- 0.3 PRI-13 PRI-o10 09/09/08 10/14/08
< 0.6 0.8 +- 0.2 0.5 +- 0.2 PRI-1 3 11/11/08 0.2 1.0 +- 0.3 PRI-10 12/16/08
- 0.2
- 0.4 1450
+- 60 6
6 14 7
17 7
10 8
7 6
27 8
1690 +- 100 14 13 23 12 34 10 21 13 12 13 44 12 1490 +- 60 7
5 12 7
16" 5
9 6
5 5
20 9
1500 +-
70 7
6 15 8
18 6
11 6
6 7
21 9
1430 +- 60 7
7 14 9
15 6
10 6
6 6
20 11 1560 4-150 14 10 27 15 30 13 19 11 8
11 42 14 Radioisotopes other than those reported were not detected.
17
Table 12. WI DHS analysis results for milk samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/liter Location: PRI-15 Collection date:
01/10/08 02/06/08 03/26/08 04/10/08 05/13/08 06/12/08 1-131
< 0.4
< 0.3
< 0.2
< 0.4 Sr-90 1.1 +- 0.2 1.0 +- 0.3 1.2 +- 0.3 0.7 +- 0.3 1.4 +- 0.4 0.5 +- 0.2 gamma isotopic K-40 1520 +- 70 1530 +- 50 1560 +- 80 1530 +- 80 1500 +- 60 1490 +- 60 Mn-54
< 10
< 4
< 10
< 9
< 7
< 6 Co-58 10
<4 11 9
< 7
< 7 Fe-59
< 22
< 9
< 21 19
< 16
< 18 Co-60
< 10
< 5
<.13 11
< 9
< 6 Zn-65
< 24
< 10
< 33
< 27
< 19
< 19 Nb-95 11
< 4
< 10 10
< 7
< 7 Zr-95
< 14
< 6
< 15
< 18 11
< 13 1-131
< 12
< 4
< 10
< 10
< 8
< 14 Cs-134
<9
< 3
< 10
< 10
< 8
< 6 Cs-137
< 9
< 4 11
< 10
< 7
< 6 Ba-140
< 37
< 13
< 34
< 34
< 27
< 41 La-140 13
< 6
< 15
< 9 11
< 14 Collection date:
07/21/08 08/12/08 09/09/08 10/14/08 11/11/08 12/16/08 1-131
< 0.2 0.9+- 0.4
< 0.2
< 0.2 Sr-90 0.8 +- 0.2 1.2 +- 0.3 1.3 +- 0.3 0.9 +- 0.3 1.1 +- 0.2 0.8 +- 0.3 gamma isotopic K-40 1500 +- 80 1630 +- 90 1570 +- 70 1400 +- 80 1430 +- 60 1480 +- 130 Mn-54
< 11
< 10
< 6
< 10
< 6
< 10 Co-58
< 11 11
< 7
< 11
< 5
< 8 Fe-59
< 24
< 25
< 17
< 24 13
< 13 Co-60
< 14
< 12
< 7 14
< 8
< 12 Zn-65
< 29
< 32
< 16
< 28
< 16
< 22 Nb-95
< 12
< 10
< 7
< 10
< 6
< 13 Zr-95
< 20 18
< 12 17 10 17 1-131
< 13
< 13
< 10
< 10
< 6
< 9 Cs-134
< 13
< 11
< 5
< 10
< 6
< 10 Cs-137
< 11
< 10
< 6
< 10
< 6
< 12 Ba-140
< 46
< 40
< 28
< 39
< 22
< 29 La-140
< 15
< 15
< 13
< 15
< 10
< 15 Radioisotopes other than those reported were not detected.
18
a.
Table 13. Wl DHS analysis results for vegetation samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/kilogram (wet)
Site Collection date:
gross alpha gross beta gamma isotopic Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Collection date:
gross alpha gross beta gamma isotopic Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-1 37 Ba-140 La-140 PRI-1 06/03/08
< 2400 10000 +- 1000 490 +- 110 5000 +- 400
< 51
< 49
< 110
< 60 130
< 49 80
< 60 60
< 54 150
< -90 09/16/08
< 3000 7400 +- 1400 1300 +- 200 5700 +- 500
< 60
< 80
< 110
< 48 180
< 70
< 90 52
< 70
< 60
< 170
< 100 PRI-4 06/03/08 1900 7300 +- 1100
< 410 4700 +- 400
< 45
< 51 120 70 160 60 100 60 60 53
< 230
< 70 09/16/08
< 2300 7000 +- 1300 540 +- 120 6400 +- 400 60 50 120
< 60
< 160 47
<. 100 57
< 52
< 52 150
< 70 PRI-5 06/03/08 2000 5300 +- 1000
< 400 4300 +- 400
- 50
< 60
< 130
- 60
< 250
< 50 90
< 49 38
< 41 140
< 90 09/16/08 3000 +- 2000 5700 +-
1200 1200 4-100 5800 +- 400
< 52
< 54
< 150
< 33 160
< 47
< 80
- 40
< 42
< 45 190
< 80 PRI-6 06/03/08
< 2300 7000 4-1200 580 +- 90 5500 +- 400 36
< 45 60
< 60
< 100
< 48
< 70
< 40
< 37 36 160
< 100 09/16/08
< 2000 6200 +- 1300 1100 4-200 5200 4-400
< 70
< 39
< 130
< 60 140
< 46
< 60 58 56 80
< 120
< 53 PRI 06/03/08
< 2300 6700 +- 1200 570 +- 150 4900 +- 400 56 60 130 49 120 60 110 60 60 70 190 80 09/16/08
< 2400 6700 4-1300 1600 4-200 6000 +- 500
<* 46
- 30 120 52
< 150 41 90 44 58 50.
220 80 PRI-9 06/03/08 2700 6200 +- 1400 550 +- 140 5500 +- 400 50
< 56 170 90
< 130 70 90 80
< 60
< 60
< 260
< 70 09116/08
< 3000 5500 +- 1600 1500 +- 100 5900 +- 400 70 39 100 53 130 52 70
< 51 58 60 180
< 80 Radioisotopes other than those reported were not detected.
19
Table 14. WI DHS analysis results for soil samples collected for the Prairie Island environmental monitoring program.
Measurements in units of pCi/kilogram (dry)
Site PRI-1 Collection date:
gross alpha gross beta gamma isotopic K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-1 34 Cs-137 Collection date:
gross alpha gross beta gamma isotopic K-40 Mn-54 Co-58 Fe-59 Co-60 06/03/08 8000 12000
+- 4000 11300
+- 500 33
< 42 120 41 140 48 70
< 60 420 +- 20 PRI-4 06/03/08 8000 13000 +- 4000 11400 +- 600
< 34 27
< 47
< 34 80
< 36 55
< 28 163 +- 16 PRI-5 06103/08
< 8000 14000 +- 4000 12400 +- 500
< 50
< 36 110
< 70 180
< 39
< 80
< 60 170 +- 20 PRI-6 06/03/08 10000 +- 8000 22000 +- 4000 15500 +- 600 46 48
< 120 55
- 210 46
< 80
- 60 260 +- 20 PRI-8 06/03/08 14000 +- 8000 24000 +- 4000 15800 +- 600 51 49 130 55 250 50 70 80 90 +- 20 PRI-9 06/03108
< 8000 14000 +- 4000 10700 +- 400 16 20
< 52
< 25 43
< 25 34
< 20 190 +- 12 09/16/08 09/16/08 09/16/08 09/16/08 09/16/08 09/16/08
< 8000 17000 +- 4000 15100 +- 600 56
- 44 130 60
< 8000 16000 +- 4000 12600 +- 400 13 12
< 30 11 8000 13000 +-
4000 11700 4-400 14 13 30 14 8000 16000
+- 4000 15000 +- 500 16
< 16 43 16 11000 +-
8000 20000 +- 4000 14600
+- 500 18 15 35 18 8000 14000 +- 4000 12200 +- 400 13 12 33 15 Zn-65 250
< 34 40
< 42
< 41
< 31 Nb-95
< 48
< 13 15 18 18
< 14 Zr-95
< 80 18 22 31 28
< 25 Cs-134
< 70
< 9 10 12 12
< 9 Cs-137 150 +- 20 170 +- 10 140 +- 10 206 +- 14 130 +- 13 190 +- 11 Naturally occurring radioisotopes such as radium-226 (226Ra), bismuth-214 (214Bi), lead-214 (214Pb), actinium-228 (228Ac), bismuth-212 (212Bi), lead-212 (212Pb) from the naturally occurring uranium-238 (238U) and thorium-232 (232Th) decay series are commonly detected but have not been quantified or reported.
Radioisotopes other than those reported were not detected.
20
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