ML20035H380
| ML20035H380 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 12/31/1992 |
| From: | Huebner L TELEDYNE ISOTOPES MIDWEST LABORATORY |
| To: | |
| Shared Package | |
| ML20035H376 | List: |
| References | |
| NUDOCS 9305040357 | |
| Download: ML20035H380 (87) | |
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.4l ce NORTHERN STATES POWER COMPANY MINNEAPOLIS, MINNESOTA PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No. 50-282 License No. DPR-42 S0-306 DPR-60 ANNUAL REPORT to the UNITED STATES NUCLEAR REGULATORY COMMISSION Radiation Environmental Monitoring Program January 1,1992 to December 31,1992 Project No. 8010 Prepared Under Contract by TELEDYNE ISOTOPES MIDWEST LABOPATORY Project No. 8010 YN f_ - Ur7N4fug Approved by:
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8 ItG.Huebner feneral Manager 23 April 1993
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9305040357 930430 DR ADOCK 050 2
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t PREFACE The staff of Teledyne Isotopes Midwest Laboratory was responsible for the acquisition of data presented in this report. Samples were collected by members of the staff of.the Nuclear Radiological Services Department, Northern States Power Company. The report was prepared by L G. Huebner, General Manager, Teledyne Isotopes Midwest Laboratory. He was assisted in the report preparation by other staff members of this laboratory.
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< e TABLE OF CONTENTS Section Bg Preface. _
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1 List of Tables...
.......i v ID INTRODUCTION.
..... 1 2D
SUMMARY
.-...........2 3D RADIATION ENVIRONMENTAL MONITORING PROGRAM (REMP)
.. 3 3.1 Program Design and Data Interpretation 3
3.2 Program Description..
_.......................4 33 Program Execution..
...............................5 3.4 12boratory Procedures.. -.
...............-.........5 3.5 Program Modifications
..................................6 3.6 land Use Census..
. 6 4D RESULTS AND DISCUSSION..........
...... 7 4.1 Atmospheric Nuclear Detonations and Nuclear Accidents.
.............7 4.2 Program Findings.
.--..._........7 SD TABLES.._.........
1 1 6D REFERENCES CITED...-
........ 23 APPENDICES A
Interlaboratory Comparison Program Results.......
...... '.... A-1 i
B Data Reporting Conventions...
.....B-1 I
C Maximum Permissible Concentrations of Radioactivity in Air and Water Above Natural Background in Unrestricted Areas
..... C-1 D
Special Ground and Well Water Samples... _
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Sampling Location Maps....
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.t 4 I LIST OF TABLES r
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Title Eagg 5.1 Sample Collection and Analysis Program, 1992 12 5.2 Sampling locations..
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.... 13 5.3 Missed Collections and Analyses, 1992 15 5.4 Environmental Radiological Monitoring Program Summary 16 In addition, the following tables are in the Appendices:
Appendix A A-1 Interlaboratory Comparison Program Results, 1988-1992.......
A-3 A-2 Interlaboratory Comparison Program Results (TLDs).........
A-18 A-3 In-house Spiked Samples.........
............................._.....A-22 l
A-3 In-house " Blank" Samples
.A-29 Attachment B: Acceptance criteria for spiked samples
............... A-35 Addendum to Appendix A: Explanation of the Results Outside of Control Limits.. A-36 Appendix C C-1 Maximum Permissible Concentrations of Radioactivity in Air and Water.
Above Natural Background in Unrestricted Areas
.C-2 Apoendix D D-4.1 Sample collection and analysis program D-6 D-4.2 Sampling locations-...................
.... D 7 D 4.3 REMP Summary
...D-8 D4.4 REMP Complete Data Table..
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1.0 INTRODUCTION
This report summarizes and interprets results of the Radiation Environmental Monitoring Program (REMP) conducted by Teledyne Isotopes Midwest Laboratory at the Prairie Island Nuclear Generating Plant, Red Wing, Minnesota, during the period January - December, 1992. This program monitors the levels of radioactivity in the air, terrestrial, and aquatic environments in order to assess the impact of the plant on its surroundings.
l Tabulations of the individual analyses made during the year are not included in this report. These data are included in a reference document (Teledyne Isotopes Midwest Laboratory,1992) available at Northern States Power Company, Nuclear Generation Department.
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l Prairie Island Nuclear Generating Plant is located on the Mississippi River in Goodhue County, Minnesota, and operated by Northern States Power Company. The plant has two 550 MWe pressurized water reactors. Unit 1 achieved initial criticality on 1 December 1973.
Commercial operation at full power began on 16 December 1973. Unit 2 achieved initial criticality on 17 December 1974. Commercial operation at full power began on 21 December 1974.
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SUMMARY
The Radiation Emironmental Monitoring Program (REMP) required by the U.S. Nuclear Regulatory Commission (NRC) Technical Specifications for the Prairie Island Nuclear Generating Plant is described. Results for 1992 are summarized and discussed.
Program findings show background levels of radioactivity in the environmental samples collected in the vicinity of the Prairie Island Nuclear Generating Plant with the exception of some of the additional special ground and well water samples. These special ground and well water samples are summarized and documented separately in Appendix D.
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i 3.0 RADIATION ENVIRONMENTAL MONITORING PROGRAM (REMP) l 3.1 Procram Desien and Data Interpretation The purpose of the Radiation Environmental Monitoring Program (REMP) at the Prairie Island Nuclear Generating Plant is to assess the impact of the plant on its environment. For this purpose, samples are collected from the air, terrestdal, and l
aquatic environments and analyzed for radioactive content. In addition, ambient gamma radiation levels are monitored by thermoluminescent dosimeters (TLDs).
Sources of environmental radiation include the following:
I (1) Natural background radiation arising from cosmic rays and primordial radionuclides;
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(2) Fallout from atmospheric nuclear detonations; (3) Releases from nuclear power plants; i
(4) Industdal and medical radioactive waste; and (5) Fallout from nuclear accidents.
In interpreting the data, effects due to the plant must be distinguished from those i
due to other sources.
I A major interpretive aid in assessment of these effects is the design of the monitoring program at the Prairie Island Plant which is based on the indicator-control concept. Most types of samples are collected both at indicator locations l
(nearby, downwind, or downstream) and at control locations (distant, upwind, or 1
upstream). A plant effect would be indicated if the radiation level at an indicator l
location was significantly larger than that at the control location. The difference would have to be greater than could be accounted for by typical fluctuations in i
radiation levels arising from other sources.
An additional interpretive technique involves analyses for specific radionuclides _
present in the environmental samples collected from the plant site. The plant's monitoring program includes analyses for tritium and lodine-131. Most samples are also analyzed for gamma-emitting isotopes with results for the~following groups quantified: zirconium-95, cesium-137, cerium-144, beryllium-7, and potassium-40.
i The first three gamma-emitting isotopes were selected as radiological impact i
indicators because of the different characteristic proportions in which they appear in j
the fission product mix produced by a nuclear reactor and that produced by a nuclear
-l detonation. Each of the three isotopes is produced in roughly equivalent amounts by l
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e 3.1 Program Desien and Data Interpretation (continued) a re ctor: each constitutes about 10% of the total activity of fission products 10 days after reactor shutdown. On the other hand,10 days after a nuclear explosion, the contributions of zirconium-95, cerium-144, and cesium-137 to the activity of the resulting debris are in the approximate ratio 4:1:0.03 (Eisenbud,1963). Beryllium-7 is of cosmogenic origin and potassium-40 is a naturally-occurrmg isotope. They were chosen as calibration monitors and should not be considered radiological impact indicators.
The other group quantified consists of niobium-95, ruthenium-103 and -106, cesium-134, barium-lanthanum-140, and cerium-141. These isotopes are released in small quantities by nuclear power plants,but to date their major source of injection into the general environment has been atmospheric nuclear testing. Nuclides of the final group, manganese-54, iron-59, cobalt-58 and -60, and zinc-65, are activation products and arise from activation of corrosion products. They are typical components of a nuclear power plant's effluents, but are not produced in significant quantities by nuclear detonations.
Other means of distinguishing sources of environmental radiation are employed in interpreting the data. Current radiation levels are compared. with previous levels, including those measured before the Plant became operational. Results of the plant's monitoring program can be related to those obtained in other parts of the world.
Finally, results can be related to events known to cause elevated levels of radiation in the environment, e.g., atmospheric nuclear detonations.
3.2 Procram Description The sampling and analysis schedule for the erwironmental radiation monitoring program at Prairie Island is summarized in Table 5.1 and briefly reviewed below.
Table 5.2 defines the sampling location codes used in Table 5.1 and specifies for each location its type (indicator or control) and its distance, direction, and sector relative to the reactor site. To assure that sampling is carried out in a reproducible manner, detailed sampling procedures have been prescribed (Teledyne Isotopes Midwest Laboratory,1992). Maps of sampling locations are included in Appendix E.
To monitor the air environment, airborne particulates are collected on membrane filters by continuous pumping at five locations. Also, airborne iodine is collected by continuous pumping through charcoal filters at all of these locations. Filters are changed and counted weekly. Particulate filters are analyzed for gross beta activity and charcoal filters for iodine-131. A monthly composite of all particulate filters is gamma-scanned on an HP Ge or Ge(Li) detector. One of the five locations is a
- control (P-1), and four are indicators (P-2, P-3, P-4, and P-6).
As a " Lessons Learned" commitment, ambient gamma radiation is monitored at thirty-two (32) locations, using CaSO4:Dy dosimeters with four sensitive areas at each location: ten (10) in an inner ring in the general area of the site boundary, fifteen (15) in the outer ring within a 4-5 mile radius, six (6) at special interest locations and one control location,11.1 miles distant from the plant. They are replaced and measured 4
4 3.2 Procram Description (continued) quarterly. Also, a complete emergency set of TLDs for all locations is placed in the field at the same time as regular sets. The emergency set is returned to TIML quarterly for annealing and repackaging.
Milk samples are collected monthly from five farms (four indicator and one control).-
l The milk is collected biweekly during the growing season (May - October), because the milk animals may be on pasture. All samples are analyzed for iodine-131 and gamma-emitting isotopes.
For additional monitoring of the terrestrial environment, leafy green vegetables (cabbage)arecollected annually from the highest D/Q garden and a control location (P-25) and analyzed for iodine-131. Corn is collected annually only from fields irrigated with river water and a control location (P-25) and analyzed for gamma-emitting isotopes. Well water and ground water is collected quarterly from three locations near the plant and analyzed for tritium and gamma-emitting isotopes.
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River water is collected weekly at two locations, one upstream of t te plant (P-5) and one downstream (P-6, Lock and Dam No.3). Monthly composites are analyzed for gamma-emitting isotopes. Quarterly composites are analyzed for tritium.
Drinking water is collected weekly from the City of Red Wing well. Monthly composites are analyzed for gross beta, iodine-131, and gamma-emitting isotopes.
Quarterly composites are analyzed for tritium.
The aquatic environment is also monitored by semi-annual upstream-and downstream collections of fish, periphyton or invertebrates, and bottom sediments.
Shoreline sediment is collected semi-annually from one location. All samples are analyzed for gamma-emitting isotopes.
l A summary of special tritium sampling of ground and well water is included in l
Appendix D.
'I 3.3 Program Execution t
The Program was executed as described in the preceding section with the following l
exceptions:
(1) TLD data for the first quarter of 1992 was not available for location P-01 A. The i
TLD was lost in the field.
Deviations from the program are summanzed in Table 5.3.
3.4 Laboratory Procedures
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l All iodine-131 analyses in milk and drinking water were made by using a sensitive radiochemical procedure which involves separation of the element by use of an ion-exchange resin and subsequent beta counting.
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3.4 l2boratory Procedures (continued)
All gamma-spectroscopic analyses were performed with an HP Ge or Ge(Li) detector.
Levels of iodine-131 in cabbage were determined by HP Ge or Ge(Li) spectrometry.
Levels of airborne iodine-131 in charcoal samples were measured by HP Ge or Ge(Li) spectrometry.
Tdtium levels were determined by liquid scintillation technique.
Analytical procedures used by the Teledyne Isotopes Midwest Laboratory are specified in detail elsewhere (Teledyne Isotopes Midwest Laboratory,1992).
Procedures are based on those prescribed by the National Center for Radiological Health of the U. S. Public Health Service (U. S. Public Health Service,1967) and by the Health and Safety Laboratory of the U. S. Atomic Energy Commisslori (U. S.
i Atomic Energy Commission,1972).
Teledyne Isotopes Midwest Laboratory has a comprehensive quality control / quality assurance program designed to assure the reliability of data obtained. Details of TIML's Quality Assurance Program are presented elsewhere (Teledyne Isotopes Midwest Laboratory,1992).
The TIML Quality Assurance Program includes participation in Interlaboratory Comparison (Crosscheck) Programs.
Results obtained in crosscheck programs are presented in Appendix A.
3.5 Procram Modifications The Johnson Dairy Farm (P-16) was replaced by the Welsch Dairy Farm (P-37) in June,1992.
3.6 Land Use Census In accordance with Technical Specification 4.10, paragraph B1, a land use census is conducted in order to identify the location of the nearest milk animal, the nearest 1'
residence, and the nearest garden of greater than 500 ft2 producing fresh leafy vegetables in each of the 16 meteorological sectors within a distance of 5 miles. This census is conducted at least once per 12 months between the dates of May 1 and October 31. New locations are added to the radiological environmental monitoring program within 30 days, and sampling locations having lower calculated doses or a lower dose commitment may be deleted from this monitonng program after October 31 of the year in which the land use census was conducted.
This land use census insures the updating of the radiation environmental monitoring program should sampling locations change within the 5 mile radius from the plant.
i The 1992 Land Use Census was completed on August 27,1992. One milk location i
was changed during 1992. The Johnson Dairy Farm (P-16) went out of business in June,1992, and was replaced by the Welsch Dairy Farm (P-37). Garden sample l
locations did not change in 1992. The critical receptor location did not change in 1992 due to the requirements of the land use census.
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i 4.0 RESUL'IS AND DISCUSSION All of the scheduled collections and analyses were made except those listed in Table 5.3.
All results are summarized in Table 5.4 in a format recommended by the Nuclear Regulatory Commission in Regulatory Guide 4.8. For each type of analysis of each sampled medium, this tame lists the mean and range for all indicator locations and for all control locations. The locations with the highest mean and range are also shown.
4.1 Atmospheric Nuclear Detonations and Nuclear Accidents There were no reported atmospheric nuclear tests in 1992. The last reported test was conducted on October 16,1980 by the People's Republic of China The reported yield vras in the 200 kiloton to 1 megaton range.
There were no reported accidents at nuclear reactor facilities in 1992.
4.2 Program Findings Results obtained show background levels of radioactivity in the environmental samples collected in the vicinity of the Prairie Island Nuclear Generating Plant in 1992, with the exception of some of the additional special ground and well water samples (see Appendix D).
Ambient Radiation CTLDs)
Ambient radiation was measured in the general area of site boundary, at outer ring 4
- 5 mi distant from the Plant, at special interest areas, and at one control location.
The means ranged from 15.1 mR/91 days at inner ring locations to 17.1 mR/91 days at outer ring locations. The mean at special locations was 14.7 mR/91 days and 14.8 mR/91 days at the control location. The differences are not statistically significant.
The dose rates measured at all indicator and control locations were similar to those observed in 1978 (12.1 and 15.1 mR/91 days, respectively); in 1979 (12.6 and 15.3 mR/91 days,respectively; in 1980 (11.2 and 13.5 mR/91 days, respectively); in 1981 (13.0 and 14.5 mR/91 days, respectively); in 1982 (12.0 and 13.0 mR/91 days, respectively); in 1983 (13.0 and 14.9 mR/91 days, respectively); in 1984 (13.9 and 15.3 mR/91 days, respectively); in 1985 (13.9 and 15.4 mR/91 days, respectively); in 1986 (16.6 and 17.0 mR/91 days, respectively); in 1987 (15.4 and 16.0 mR/91 days, respectively) in 1988 (16.2 and 16.7 mR/91 days, respectively); in 1989 (15.8 and 16.3 i
mR/91 days, respectively); in 1990 (15.9 and 16.3 mR/91 days, respectively); and in 1991 (14.7 and 14.5 mR/91 days, respectively). No plant effect on ambient gamma radiation was indicated.
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O Airborne Particulates The average annual gross beta concentration in airborne particulates was nearly identical at both indicator and control locations (0.023 and 0.021 pCi/m3),
respectively, and it was similar to the levels observed in 1982 (0.026 pCi/m3),1983 3
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(0.023 pCi/m ),1964 (0.024 pCi/m ),1985 (0.025 pCi/m ),1986 (0.025 pC1/m3),1937 (0.024 pCi/m )1990 (0.024 pCi/m3) and in 1991 (0.025 pCi/m3). It was slightly lower 3
than in 1988 (0.030 pCi/m3 at both indicator and control locations) and 1989 (0.028 pCi/m3). The average of 0.025 pC1/n@ for 1986 does not include the results from May 19 to June 9,1986, which were influenced by the accident at Chernobyl.
A spring peak in beta activity had been observed almost annually for many years (Wilson gi al.,1969). It had been attributed to fallout of nuclides fr'om the stratosphere (Gold gi al.,1964). It was pronounced in 1981, occurred to a lesser degree in 1982, and did not occur in 1983,1984,1985,19871988,1989,1990,1991, or 1992. In 1986, the spring peak could not be identified because it was overshadowed by the releases of radioactivity from Chernobyl. The highest averages for gross beta were for the month of January and December. The increase of beta activity during the winter months were also observed in 1983,1984,1985,1986 (exclusive of the period between May 19,1986 and June 9,1986),1987,1988,1989,1990, and 1991.
Two pieces of evidence indicate conclusively that the elevated activity observed during the winter months was not attributable to the Plant operation. In the first place, elevated activity of similar size occurred simultaneously at both indicator and control locations. Secondly, an identical pattern was observed at the Monticello Nuclear Generating Plant, about 100 miles distant from the Prairie Island Nuclear Generating Plant (Northern States Power Company,1993a).
Gamma spectroscopic analysis of quarterly composites of air particulate filters yielded similar results for indicator and control locations. Beryllium-7, which is produced continuously in the upper atmosphere by cosmic radiation (Arnold and Al-Salih, 1955), was detected in all samples. All other gamma-emitting isotopes were below their respective LLD limits.
Airborne Iodine Weekly levels of airborne iodine-131 were below the lower limit of detection (LLD) of 0.07 pCi/m3 n all samples, except one (<1.48 pCi/m3). The LLD was not reached i
due to very low volume.
Milk Iodine-131 results were below the detection limit of 1.0 pCi/L in all samples. Cs-137 results were below the LLD level of 15 pCi/L in all samples. No other gamma-emitting isotopes, except potassium-40, were detected in any milk samples. This is consistent with the findings of the National Center for Radiological Health that most radiocontaminants in feed do not find their way into milk due to the selective
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Milk (continued) metabolism of the cow. The common exceptions are radioisotopes of potassium, cesium, strontium, barium, and iodine (National Center for Radiological Health, 1%8).
In summary, the milk data for 1992 show no radiological effects of the plant operation.
i Drinking Water In drinking water from the City of Red Wing well, tritium activity was below the LLD level of 330 pCi/L in all samples. As with the other well water samples, all analyses for gamma-emitting isotopes yielded results below detection limits Gross beta averaged 7.6 pCi/L and was similar to the levels observed in 1979 (10.5 pCi/L),
1980 (11.8 pCi/L),1981 (pCi/L),1982 (8.9 pCi/L),1983 (8.0 pCi/L),1984 (7.9 pCi/L),1985 (7.1 pCi/L),1986 (6.8 pCi/L),1987 (7.9 pCi/L),1988(8.0 pCi/L),1989 (7.0 pCi/L),1990 (7.0 pCi/L),and 1991 (8.0 pCi/L).
River Water At the upstream and downstream collection sites, quarterly composite tritium levels were below the LLD level of 330 pCi/l in all samples.
River water was also analyzed for gamma-emitting isotopes. All gamma-emitting isotopes were below their respective detection limits. There was no indication of a plant effect.
Well Water At the control well P-25, Rohl Farm and three indicator wells (P-8, Community Center; P-6, Lock and Dam No. 3; and P-9, Plant Well No. 2) no tritium was detected above LLD level of 330 pCi/l in all samples.
Gamma-emitting isotopes were below the detection limits in all samples.
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Two samples of cabbage were collected in August and analyzed for I-131. The I-131 level was below 0.033 pCi/g wet weight in both samples. There was no indication of a plant effect.
The field sampling personnel conducted a survey and found that there was no river water taken for irrigation into fields within 5 miles down stream from Prairie Island i
Plant. Therefore, it was not necessary to collect and analyze corn samples..
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Acuatic Insects or Periphyton Aquatic insects (invertebrates) or periphyton were collected in July and November, 1992. The samples were analyzed for gamma-emitting isotopes. All gamma-emitting isotopes were below their respective LLDs. No plant effect was indicated.
Bottom and Shoreline Sedimenti Sediment collections were made in May and September,1992. The samples were analyzed for gamma-emitting isotopes.
Cs-137 was detected in both upstream and downstream bottom sediment samples (0.062 and 0.080 pCi/g dry weight respectively). There was no significant difference between upstream and downstream results. There is no indication of a plant effect.
All othet gamma-emitting isotopes, except naturally-occurring potassium-40, were below their respective LLDs. No plant effect was indicated.
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ui-i 5.0 TABLES 1
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Table 5.1. Sample collection and analysis program, Prairie Island Nuclear Generating Plant,1992.
Locations Collection Analysis Codes Type and Type and b
C Medium No.
(and Type)a Frequency Frequency Ambient radiation 32 P-01 A - P-10A C/Q Ambient gamma (TLDs)
P-01B - P-15B P-01S - P-06S P-01C Airborne particulates 5
P-1(C), P-2 C/W GB,GS (QC of
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P-3, P-4, P-6 each location)
Airborne Iodine 5
P-1(C), P-2, P-3 C/W I-131 P-4, P-6 Milk 5
P-14, P-16, P-18, C/Md I-131, GS P-25(C),P-36, P-37 River water 2
P-5(C),P-6 G/W GS(MC), H-3(QC)
Drinking water 1
P-11 G/W GB(MC),1-131(MC)
Well Water 4
P-25(C), P4 G/Q H-3, GS P-8, P-9 Edible cultivated crops -
leafy green vegetables 2
P-25(C),P-24 G/A I-131 Fish (one species edible portion) 2 P-19(C), P-13 G/SA GS Periphyton or invertebrates 2
P-5(C), P-12 G/SA GS Bottom Sediment 2
P-20(C),P-6 G/SA GS Shoreline sediment 1
P-12 G/SA GS a Location codes are defined in Table 5.2. Control stations are indicated by (C). All other stations are indicators.
b Collection type is coded as follows: C/ = continuous, C/ = grab. Collection frequency is coded as follows: W= weekly, M = monthly, Q = quarterly, SA = semiannually, A = annually.
1 C Analysis type is code as follows: GB = gross beta, GS = gamma spectroscopy, H-3 = tritium,I-131 =
iodine 131. Analysis frequency is coded as follows: MC = monthly composite, QC = quarterly composite.
d Milk is collected biweekly during the grazing season (May - October) if milch animals are on pasture.
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i Table 5.2. Sampling locations, Prairie Island Nuclear Generating Plant,1992.
Distance and Type of Direction from b
Site Stack a
Collection Site Sample Code Type P-1 C
Air Station P-1 AP,AI 11.8 mi @ 316'/NNW P-2 Air Station P-2 AP,AI 0.5 mi @ 294'/WNW P-3 Air Station P-3 AP,AI 0.8 mi @ 313*/NW P-4 Air Station P-4 AP,AI 0.4 mi @ 359'/N P-5 C
Upstream of Plant RW,BO 23 ml @ 348'/NNW P-6 Lock & Dam #3 & Air AP, AI, RW, Station P-6 WW, BS 1.6 mi @ 129'/SE P-8 Community Center WW 1.0 mi @ 321*/WNW P-9 Plant Well #2 WW 03 ml @ 306'/NW P-11 Red Wing Service Center DW 33 mi @ 158'/SSE P-12 Downstream of Plant BO, SS 3.0 mi @ 116*/ESE P-13 Downstream of Plant F
3.5 mi @ 113*/ESE P-14 Custafson Farm M
23 mi @ 173*/SSE P-18 Chnstensen Farm M
3.8 mi @ 88*/E P-19 Upstream of Plant F
13 mi @ 0*/N P-20 Upstream of Plant F
0.9 mi @ 45'/NE P-24 Suter Residence VE 0.6 mi @ 158'/SSE P-25 C
Rohl Farm M, WW, VE 12.9 mi @ 352'/N P-36 Dosdall Farm M
3.9 mi @ 9'/N P-37 Welsch Farm M
4.1 mi @ 90*/E General Area of the Site Boundary P-01A Property Line TLD 0.4 mi @ 359'/N P-02A Property Line TLD 03 mi @ 10*/N P-03A Property Line TLD 0.5 mi @ 183*/S P-04A Property Line TLD 0.4 mi @ 204'/SSW P-05A Property Line TLD 0.4 mi @ 225'/SW P-06A Property Line TLD 0.4 mi @ 249'/WSW P-07A Property Line TLD 0.4 mi @ 268'/W P48A Property Line TLD 0.4 mi @ 291*/NNW l
P-09A Property Line TLD 0.7 mi @ 317'/NW
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P-10A Property Line TLD 0.5 mi @ 333'/NNW r
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Table 5.2. Sampling locations, Prairie Island Nuclear Generating Plant,1992 (continued).
Distance and Type of Direction from a
Collection Site Sampleb Site Stack Code Type Approximately 4 to 5 miles Distant from the Plant General Area of the Site Boundary P-01B Thomas Killian Residence TLD 4.7 mi @ 355"/N P-02B Roy Kinneman Farm TLD 4.8 mi @' 17*/NNT P-03B Wayne Anderson Farm TLD 4.9 mi @ 46"/hT P44B Nelson Drive (Road)
TLD 4.2 mi @ 61*/ENE P-05B County Road E and Coulee TLD 4.1 mi @ 102*/ESE P-06B William Houschildt Residence TLD 4.4 mi @ 112'/ESE P-07B Red Wing Public Works TLD 4.7 mi @ 140*/SE P-08B David Wnut R:::idence TLD 4.1 mi @ 165*/SSE P-09B Highway 19 South TLD 4.2 mi @ 187'/S P-10B Cannondale Farm TLD 4.9 mi @ 200*/SSW P-11B Wallace Weberg Farm TLD 4.5 mi @ 221*/SW P-12B Roy Gergen Farm TLD 4.5 mi @ 247*/WSW P-13B Thomas O'Rourke Farm TLD 4.4 mi @ 270*/W P-14B David J. Anderson Farm TLD 4.9 mi @ 306*/NW P-15B Holst Farms TLD 4.2 mi @ 347'/Nh3V Special Interest Locations P-01S Federal Lock & Dam #3 TLD 1.6 mi @ 129'/SE P-02S Charles Suter Residence TLD 0.5 mi @ 155'/SSE P-03S Carl Gustafson Farm TLD 2.2 mi @ 173'/SSE P-04S Richard Burt Residence TLD 2.0 mi @ 202*/SSW P-05S
. Kenney Store TLD 2.0 mi @ 270*/W P.06S Earl Flynn Farm TLD 2.5 mi @ 299'/WNW P-01C Robert Kinneman Farm TLD 11.1 mi @ 331*/SE a "C" denotes control location. All other locations are indicators.
b Sample Codes:
AP = Airbome particulates WW = Well water AI = Airborne Iodine BS = Bottom (river) sediments M = Milk SS = Shoreline Sediments VE = Vegetation / vegetables BO = Bottom organisms (periphyton or DW = Drinking water macroinvertebrates)
RW = River water F = Fish
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i Table 5.3. Missed collections and analyses,1992. Prairie Island Nuclear Generating Plant.
All required samples were collected and analyzed as scheduled except the following:
Collection Date I
Sample Analysis Location or Period Comments 4
i Thermoluminescent Ambient P-01A ist Qtr.1992 Lost in the field.
Dosimeters (TLDs)
Radiation t
f i
?
r f
I f
[
[
I i
i i
.- [
t f
15 i
Table 5.4. Radiolosteal Environmental Monitoring Program Summtry.
Name of Fadlity Prairie t=I=~4 Nuct-r Power Station Docket No. 50282. 5G306 tocation of Fadlity Coodhue. Minnesota Reporting Period Ianuary-Decantu 1992 (County, State)
Sample Typeand Indicator Location with Illghest Control Numbwd Type Numtwrd locations AnnualMean locations Non-routine (Units)
Analyses LLDb y,,n(p)e y,(pyc Mean (F)C Results' a
Range tomtion d t
% g,c RangeC TLD(mR/91 dep)
Gamma 39 3.0 15.1 09/39)
P-GIA, Property 16.2(4/4)
(See Control below.)
0 (Innes Ring, General (11.6 18.0)
Une,0.5 mi e 183*/S (14.7 17.8)
Area at Site Bourulary)
P-07A, Property line M2 (4/4) 0.4 mi e 268'/W (13.4-18.0)
TLD(mR/91 days)
Camma to 3.0 17.1 ((0/60)
P-02D, R. Kinneman 19.2(4/4)
(See Control below.)
0 (Outer Ring,4 5 (12.4-22.6)
Farm,4.8 mi e (16.3-21.9) miles distant) 17'/NNE TLD(mR/91 days)
Camma 2
3.0 14.7 04/24)
P-335, C Custafson 16.6(4/4)
(See Controt below.)
0 (Spedal Interest (10.6-18.8)
Farm,2.2 mi e (12.4-18.5)
Areas) 173*/SSE 5
TLD(mR/91 dap)
Camma 4
3.0 None P-01C, R. Kinneman 14.8(4/4) 14.8(4/4) 0 (Control)
Farm,11.1 ml 9 (13.1 19.1)
(13.1-19.1) 331'/NNW Airborne CD 265 0.003 0.023 Q11/212)
P-4, Station P-4 0 024 (52/53) 0.021 (53/53)
O Particulates (0.006-0.059) 0.4 ml e 359'/N (0.006-0.059)
(0.009 4 048) 3 (pO/m )
CS 20 Be-7 0.022 0.062(16/16)
P-4, Station P-4 0.072 (4/4) 0.054 (4/4) 0 (0.027-0.093) 0.4 mi e 359'/N (0.O s o.084)
(0.G34-0.067)
Mn-54 0.0024
<LLD
<tLD 0
Co 58 0.0030
<LLD
<LLD 0
Co40
, 0.0032
<LLD
<LLD 0
Zn-65 0.0059
<LLD
<LLD 0
Zr.Nb-95 0.0054
<LLD
<LLD 0
m m --
a
.2 m.-.m-s w
.m3
~
Table 5.4. Radiological Enytrenmental Monitoring Program Summary (continued)
Name of Fadlity Prairie fami Ntear Power Station Docket No _50282.50306 Location of Fadlity Coodhue. Minnesota Reporting Period Jnuary - December 1992 (County, State)
Sample Type and Indicator Location with Ilighest Control Numbad Type Number of Imcations Anranteen locations Non-routine b
(Units)
Analyses
- LLD Mean (F)*
kk OC Mean (F)C Results' Range lomtion d C
C gc Range Airborne CS Particulates 3
(pO/m )
Ru-1(D 0.0027
<LLD
<LLD 0
Ru-1%
0.019
<LLD
<LLD 0
Cs-134 0.0021
<LLD
<LLD 0
Cs-137 0.0022
<LLD
<LLD 0
w Ba-14140 0.0092
<LLD
<LLD 0
N Ce 141 0.0040
<LLD
<LLD 0
Ce-144 0.013
<tLD
<LLD 0
Airbome lodine I-131 265 0.07f
<LLD
<LLD 0
3 (pCl/m )
- Milk, I-131 90 1.0
<LLD
<LLD 0
(pO/L)
G M
K-40 100 1330(72/72 P-14, Custafson 1400 (18/18) 1250 (18/18) 0 (1160-1640)
Farm 2.2 mi e (1270-1640)
(1120-1380) 173'/SSE Cs-134 15
<LLD
<tLD 0
Cs-134 15
<LLD
<LLD 0
Other gammes 15
<LLD
<tLD 0
d m
.,,m_
e.-
-m a
- Ttble 5.4. Radiological E...;.
,...:al Monitoring Program Summary (continued)
Name of Fedlety Praida taland Nudmar Power Station Docket No._ 542ft150306 Lastion of Fadhty Goodhue.Minnegte Reporting Petod _ lanuary - December 1992 (County, State)
Semple Type and Indicefor Location with Illghest Control Numbs of Type Numberof lastions AnnualMean tocations Non-routine An.1,es
- 11Db Mean (F)C h(F)C Mean (F)*
Results' (Units) 7 Range tastion d t
c
%,c
%ge Drinking Weter CB 12 1.0 7.6(12/12)
P-11, Red Wing 7.6 (12/12)
None 0
(pCl/Q (6.6-9.7)
Service Center 3.3 (6.6 9.7) rni e 158'/SSE 6
I.131' 12 1.0
<LLD None 0
11-3 4
330
<LLD None O
GS 12 Mn-54 15
<LLD None 0
w Fe-59 30
<LLD None O
co Ca56 15
<LLD None O
Co40 15
<LLD None 0
I Zn-65 30
<LLD None 0
Zr-Nb-95 15
<tLD None O
Cs-134 10
<tLD None O
Cs-137 10
<LLD
. None 0
Be.La 140 15
<LLD None O
Ce-144 54
<tLD None 0
River Weter 11-3 8
330
<LLD None 0
. LLD None 0
Fe-59 30
<LLD None 0
n v.
.._-+,-.e-ew
.-.-es--*=---=w w
usw3-,w=*
iv-sw'
- nv.
w m e-ww
- u w w =w w, r.
---%+=*-wmww-r--er+rm
'mv+--s-we-v>w,or - v -t e-*w---+--v.++w,
-+r-s.e-v w-e--w-$3
.--,+*.uwwm- - + -w *v w
+v-
=,-ewnever e ww.ar,..
..-..-r-----=,--,_,rwmm_
.s.--
m e
d i 's n
t eut lu 0
0 0 0
0 0 0 0
0 0 0 0 0
0 0
0 0
0 bomr s un e NoR N
c s) m lo nF#
D D D D D D D D
D D D D D D D D D D t io(
r g
L L L
L L L L L
L L L L L L L L L L nt n n L
L L
L t L t L
t L t t L L
L L L L a
oc a a
~
CoeR M
L m
w c
e s
F) g
(
29 n n 9
n a t
eR 1
se M
e h
t lg n
l n m
a I
hM 6
e t
0 D iwd 3
0 y
t 5
nn ra on 2
2 n
t A 5 u i
a d
a c
0 o
n I
5 L
io od tac o
Ni o
r t
t e eP kc g o n Dit rope R
sC
)
r
)
onFC d
o( e D D D D D D D D
D D D D D D D D D D t
ai g
L L L L L L L
L L L L L L L
L L L L eu ct n n L
L L
L L L L
L L t L t
t t L t L L ia n
i dc a a eR t
n o. M n
II oc
(
y r
a m
n m
o S
t u i a t
b 0
m S
D 5
5 0
0 0
5 4
5 0
5 5
0 5
5 8
5 0
3 L
1 1
3 1
1 1
5 1
3 1
1 3
1 1
1 1
5 3
a to )e c
a L
rgo os P Pe t
r a
n t
r g
ain S 6
6 n
eM o
- a. ty, 1
1 i
l r
e n
ti Nu u
n h
o o
d dC M n o
(
a o d d *s d sG l
n e
aes 0
0 t
I n
e.
et y 4
5 4
e 1
9 1
i pml 4
7 4
r a
4 7
4 e..
i 4
b a
4 a
yu n 8
0 5
3 3
a 4
9 8
o M4 3
3 e P TNA L
5 4
L r
5 6
4 1
5 S
f 1
1 1
1 1
t a o n +
o e
e n
-e o a s
e e
C+
C B C r
y ty C C 7 C C B C 3
M F C C 7 Z E
tyu n
S 1
l it d G
1 de F
ac e
)
ig FM de o dm ru r
l io ek en e
t i t
e
)
at tad d
ma s
lpet c
a co pi Wo W/
a R
Nt m yn l
c C
r(
eTU l
e le (p vU 4
S
(
Ri W
5 i/
le C
b p
t
(
T
._ o
,t
Table 5,4. Radiological Enviromnental Monitoring 1% gram Summary (continued)
Name of FedHty_ftstritLsland Nudear Ibwer Station __
Docket No. fo_252.5G306 location of Fedlity Goodhue. Minnests Repmting Pelod lanuary - December 1992 (County, State)
Semple Type end Indicator Location with flighest Control Numbe of Type Numba of lecations AnnualMsen _
tocations Non-routine (Units)
Analyses
- LLDb Mean (F)*
Mean(F)c Mean (F)c Results' Range location d C
c t
g,np Range Crops-Cobbage 1-131 2
0.m3
<LLD
<LLD 0
(pO/g wet)
Fish - Flesh C5 4
(PG/gwet)
K-40 0.1 2.78 (2/2)
P-19, Upstream ol 2.80(2/2) 2.80 (2/2) 0 (2.59-2.97)
Plant,13 mi e O' N (2.75-2.85)
(2.75-2.85)
Mn-54 0.024
<LLD
<LLD 0
Fe-59 0.12
<tLD
<LLD 0
ro o
Ca58 0.m3 cl.LD
<LLD 0
CMG 024
<LLD
<LLD 0
Zn45 0.070
<LLD
<LLD 0
Zr-Nb95 0.0re
<LLD
<tLD 0
Cs-134 0.022
<LLD
<tLD 0
Co-137 0.022
<LLD
<LLD 0
Be La-140 0.23
<LLD
<LLD 0
?
Invertebrates GS 4
(pO/g wet)
Be 7 1.16
<LLD
<LLD 0
K-40 2.23
<LLD
<LLD 0
-m=
-u.,
s---v--
e
=
w
---s v
v--
o r.6,,
e Table 5.4. Radiological Environmental Monitoring Program Summary (continued)
Name of Fadlity Prairie Island Nudear Power Station Docket No. N282.50306 1mcation of Fadlity Goodhue. Minneota Reporting Period __. Ianuarv - Decembe 1992 (County, State)
Sample Type and Indicator Location with Illghest Control Numbs d Type Numte of tecations AnmalMson locations Non-routfne (Units)
An.tym LLDb y,,n(p)c h g:)C Mean (F)C ResultsC a
Range tocation d C
C C
Range Ranp Invertebrates C5 4
(pO/g wet)
(cmtinual)
Mn-54 0.15
<tLD
<LLD 0
C&58 0.13
<tLD
<tLD 0
CoR) 0.10
<LLD
<LLD 0
Zn-65 0.27
<LLD
<LLD 0
Zr-Nb95 0.18
<LLD
<tLD 0
Ru-1G1 0.14
<LLD
<LLD 0
m w
Ru-106 1.04
<LLD
<LLD 0
Cs-134 0.11
<LLD
<LLD 0
Cs-137 0.11
<LLD
<LLD 0
Ba-La-140 0.25
<LLD
<LLD 0
Ce-141 031
<LLD
<LLD 0
Ce.144 1.07
<LLD
<LLD 0
o Bottom and CS 6
Shoreline Sediments (pCl/g Be-7 0.50
<tLD P-24 Upstream of 0.73 (1/2) 0.73 (1/2) 0 l
dry)
Plant,0.9 ml 9 45' NE K-40 1.0 9.98 (4/4)
P-40, Upstream of 1138(2/2) 1138(2/2)'
O (6.80-12.95)
Plant,0.9 ml 9 (10.05-12.70).
(10.05 12.70) 45'NE l
a e
h g
t sen e
f n t
oi k u 't t
s ne olu 0
0 0
0 0
0 0
0 0
0 0
0 t
mr s s
u n e d
NoR ee N
c xe 4
t i
fi
~
en i
~
t C
.)
u
)
F o
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(
r l
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/
or io( e D D D D D D D D D D D
=
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L L L L L L L L
(
L L L tnt n n L L L L L L L L 2
L L L o
a n
oc a a 6
i.
CoeR 0
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M n
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rb u
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i
6.0 REFERENCES
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ll 1979b.
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i 1983b.
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]
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l 23 l
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Minneapolis, Minnesota.
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Minneapolis, Minnesota.
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Minneapolis, Minnesota.
~.
24
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Minneapolis, Minnesota.
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Minneapolis, Minnesota.
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Minneapolis, Minnescta.
l
.1992. Prairie Island Nuclear Generating Plant, Annual Radiation Environmental Monitoring Report to the U.S. Nuclear Regulatory Commission, January 1,1991 to December 31, 1991 (prepared by Teledyne Isotopes Midwest laboratory).
Minneapolis, Minnesota.
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t 1984b.
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i
~.
25
e-1986a. Radiation Environmental Monitoring for Monticello Nuclear Generating Plant, Complete Analysis Data Tables, January - December 1985.
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Radiation Environmental Monitoring for Prairie Island Nuclear Generating Plant, Complete Analysis Data Tables, January - December 1986.
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Radiation Environme
.1 Monitoring for Prairie Island Nuclear Generating Plant, Complete Analysis 1.iata Tables, January - December 1987.
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Radiation Environmental Monitoring for Prairie Island Nuclear Generating Plant, Complete Analysis Data Tables, January - December 1991
~.
26
. 1993a. Radiation Environmental Monitoring for Monticello Nuclear Generating Plant, Complete Analysis Data Tables, January - December 1992.
1993b.
Radiation Environmental Monitoring for Prairie Island Nuclear Generating Plant, Complete Analysis Data Tables, January - December 1992.
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- j laboratory, New York, NY.,10014.
U.S. Public Health Service. 1967. Radioassay Procedures for Environmental Samples, Publication No. 999-RH-27).
~
[
National Center for Radiological Health, Rockville, Maryland (Public Health Service Wilson, D. W., G. M. Ward and J. E. Johnson. 1969. In Environmental Contamination by
[
Radioactive Materials, International Atomic Energy Agency. p.125.
' \\
I t
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i f
t h
i l
1 i
U a
P I
APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESUL'IS e
NOTE: TIML participates in intercomparison studies administered by U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. The results.are reported in Appendix A. Also reported are results of in-house spikes and blanks. Appendix A is updated quarterly; the complete Appendix is included in January, April, July and October monthly reports only. Please refer to these reports for information.
January,1993
Appendix A i
Interlaboratory Comoarison Procram Results i
Teledyne Isotopes Midwest Laboratory (formerly Hazleton Environmental Sciences) has participated in interlaboratory comparison (crosscheck) programs since the formulation of its quality control program in December 1971. These programs are operated by agencies which supply environmental-type samples (e.g., milk or water) containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of l
such a program is to provide an independent check on the laboratory's analytical procedures and to alen it to any possible problems.
Participant laboratories measure the concentration of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies controllimits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.
The results in Table A-1 were obtained through participation in the environmental sample crosscheck program for nulk, water, air filters, and food samples during the period January 1988 through December 1992. This program has been conducted by the U.S. Environmental Protection Agency Intercomparison and Calibration Section, Quality Assurance Branch, Environmental Monitoring and Support Laboratory, las Vegas, Nevada.
'Ihe results in Table A-2 were obtained fc hermoluminescent dosimeters (TLDs) during the period 1976,1977,1979,1980,1984, and 1985-86 through participation in the Second, Third, Fourth, Fifth, Seventh, and Eighth International Intercomparison of Environmental Dosimeters under the sponsorships listed in Table A-2. Also Teledyme testing results are listed.
Table A-3 lists results of the analyses on in-house spiked samples.
Table A-4 lists results of the analyses on in-house " blank" samples.
Attachment B lists acceptance criteria for " spiked" samples.
Addendum to Appendix A provides explanation for out-of-limit results.
i
~.
A-2
Table A-1. U.S. Environmental Protection Agency's crosscheck program, comparison of EPA and Teledyne Isotopes Midwest Laboratory results for milk, water, air filters, and food samples,1988 through 1992.a Concentation in tCi/Lb M
Sample Date TIML Result EPA Resultd Code Type Collected Analysis i2cc Is, N=1 Control Limits
~
STW-521 Water Jw 1988 Sr-89 27315.0 30.0 5.0 21 3-38.7 Sr-90 15311.2 15.0*1.5 12.4-17.6 STW-523 Water Jan 1988 Gr. alpha 2311.2 4.0i5.0 0.0-12.7 Gr. beta 7.711.2 8.05.0 0.0-16.7 STF-524 Food Jan 1988 Sr-89 44.014.0 46.0i5.0 373-54.7 Sr-90 53.0 2.0 55.0i2.8 50.2-59.8 I-131 102314.2 102.0110.2 84 3-119.7 Cs-137 95.7 6.4 91.015.0 823-99.7 K
10111158 1230i62 1124-1336 STW-525 Water Feb l988 Co40 693i23 69.0i5.0 60 3-7/.7 Zn-65 99.0i3.4 94.0d9.4 77.7-1103 Ru-106 92.7i14.4 105.0i10.5 86.8-123.2 Cs-134 61.718.0 64.0i5.0 553-72.7 Cs-137 99.713.0 94.015.0 853-102.7 STW-526 Water Feb 1988 H-3 34531103 3327i362 2700-3954 STW-527 Water Feb l988 Uranium 3.0d0.0 3.016.0 0.0-13.4 STM-528 Milk Feb 1988 1-131 4.711.2 4.0do.4 33-4.7 STW-529 Water Mar 1988 Ra-226 7.1 0.6 7.611.1 5.6-9.6 Ra-228 nae 7.7il.2 5.7-9.7 STW-530 Water Mar 1988 Gr. alpha 43il.2 6.0d5.0 0.0-14.7 Gr. beta 133i13 13.015.0 4 3-21.7 STAF-531 Air Filter Mar 1988 Gr. alpha 21.0i2.0 20.015.0 11 3-28.7 L
Gr. beta 48.0 0.0 50.0i5.0 41 3-58.7 Sr-90 16.711.2 17.011.5 14.4-19.6 Cs-137 18.7i13 16.0i5.0 7 3-24.7 STW-532 Water Apr1988 I-131 9.012.0 7.5do.8 6.2-8.8
~.
A-3
Tchl2 A-1. (continued)
Concentration in oCi/Lb Iab Sample Date TIML Result EPA Resultd Code Type Collected Analysis i2cc Is, N=1 Control Limits STW-533 Water Apr1988 534 (Blind)
Sample A Cr. alpha NDI 46.0111.0 27.0-65.0 Ra-226 ND 6.411.0 4.7-8.1 Ra-22S ND 5.6fD.8 4.2-7.0 Uranium 6.0i6.0 6.016.0 0.0-16.4
^
Sample B Cr. beta ND 57.0 5.0 48 3-65.7 Sr-89 3311.2 5.015.0 0.0-13.7 Sr-90 53 1.2 5.011.5 2.4-7.6 Co-60 633i13 50.0i5.0 41 3-58.7 Cs-134 7.7il.2 7.0 5.0 0.0-15.7 Cs-137 83i1.2 7.0i5.0 0.0-15.7 STU-535 Urine Apr1988 H-3 6483i155 62021620 5128-7276 STW-536 Water Apr1988 Sr-89 14.7i13 20.015.0 11 3-28.7 Sr-90 20.0+2.0 20.011.5 17.4-22.6 STW-538 Water Jun 1988 Cr-51 331.7113.0 302.0i30.0 250.0-354.0 Co-60 16.012.0 15.0i5.0 6 3-23.7 Zn-65 107.7 11.4 101.0110.0 83.7-1183 Ru-106 191 3 111.0 195.0 20.0 60.4-229.6 Cs-134 183 4.6 20.015.0 11 3-28.7 Cs-137 263il.2 25.0i5.0 163-33.7 STW-539 Water Jun 1988 H-3 5586d92 5565t557 4600-6530 STM-541 Milk Jun 1988 Sr-89 33.7111.4 40.015.0.
31 3-48.7 Sr-90 55315.8 60.0i3.0 54.8-65.2 I-131 103.7i3.1 94.0 9.0 78.4-109.6 Cs-137 52.713.1 51.015.0 423-59.7 K
1587i23 1600 ISO 1461-1739 STW-542 Water Jul1988 Gr. alpha 8.7i4.2 15.0i5.0 6 3-23.7 Gr. beta 5311.2 4.0i5.0 0.0-12.7 STF-543 Food Jul1988 Sr-89 NDI 33.0 5.0 24341.7 Sr-90 ND 34.0i2.0 30.5-37.5 I-131 115.0f53 107.0i11.0 88.0-126.0 Cs-137 52.716.4 49.0i5.0^
403-57.7 K
1190i66 1240162 1133-1347
~.
A-4
Table A-1. (continued)
Concentration in oCi/Lb Lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis 12cc Is, N=1 Control Limits STW-544 Water Aug 1988 I-131 80.0dD.0 76.018.0 62.1-89.9 STW-545 Water Aug 1988 Pu-239 11.0d0.2 10.211.0 8511.9 STW-546 Water Aug 1988 Uranium 6.0do.0 6.0i6.0 0.0-16.4
~
STAF-547 Air Filter Aug 1988 Cr. alpha 8.0i0.0 8.0d5.0 0.0-16.7 Gr. beta 263il.2 29.0i5.0 203-37.7 Sr-90 8.012.0 8.0il.5 5.4-10.6 Cs-137 13.0i2.0 12.0t5.0 33 20.7 STW-548 Water Sep 1988 Ra-226 93do.5 8.412.6 6.2-10.6 Ra-228 5.810.4 5.411.6 4.0-6.8 STW-549 Water Sep 1988 Gr. alpha 7.012.0 8.015.0 0.0-16.7 Gr. beta 113 1.2 10.015.0 13-18.7 STW-550 Water Oct 1988 Cr-51 252.0114.0 251.0i25.0 207.7-2943 Co-60 26.012.0 25.0d5.0 163-33.7 Zn-65 1583 10.2 151.0i15.0 125.0-177.0 Ru-106 153.0d9.2 152.0115.0 126.0-178.0 Cs-134 28.7 5.0 25.015.0 16 & 33.7 Cs-137 163il.2 15.0i5.0 6 3-23.7 STW-551 Water Oct 1988 H-3 2333i127 2316i350 1710 2927 STW-552 Water Oct 1988 553 (Blind)
Sample A Gr. alpha 383 8.0 41.0i10.0 23.7-583 Ra-226 4.5dO5 5.0i0.8 3.6-6.4 Ra-228 4.40.6 5.2do.8 3.64.4 Uranium 4.711.2 5.0i6.0 0.0-15.4 4
Sample B Gr. beta 51.3i3.0 54.0 5.0 45362.7 Sr-89 3.7i1.2 11.Di5.0 2 3-19.7 Sr-90 10.711.2 10.0il.5 7.4-12.6 Cs-134 153i23 15.015.0 6 3-23.7 Cs-137 16.711.2 15.0i5.0 6 3-23.7
~.
A-5
Tcbb A-1. (continued)
Concentration in oCi/Lb lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis 2cC 1s, N=1 Control Limits STM-554 Milk Oct 1988 Sr-89 40317.0 40.0i5.0 31 3-48.7 i
Sr-90 51.0i2.0 60.013.0 54.845.2 1-131 94.013.4 91.019.0 75.4-106.6 Cs-137 45.0i4.0 50.0i5.0 41 3-58.7 K
1500145 1600i80 1461-1739
^
STU-555 Urine Nov 1988 H-3 3030i209 3025i359 2403-3647
~
STW-556 Water Nov 1988 Gr. alpha 9.0i3.5 9.0i5.0 03-17.7 Gr. beta 9.7 1.2 9.015.0 03-17.7 STW-557 Water Dec 1988 I-131 108.7i3.0 115.0112.0 94.2-135.8 STW-559 Water Jan 1989 Sr-89 40.0i8.7 40.0i5.0 31 3-48.7 Sr-90 24313.1 25.011.5 22.4-27.6 STW-560 Water Jan 1989 Pu-239 5.8i1.1 4.2d0.4 3.5-4.9 STW-561 Water Jan 1989 Gr. alpha 73il.2 8.015.0 0.0-16.7 Gr. beta 5311.2 4.015.0 0.0-12.7 STW-562 Water Feb l989 Cr-51 245146 235i24 193.4-276.6 Co-60 10.0i2.0 10.0 5.0 13-18.7 i
Zn-65 170110 159116 139.2-186.7 Ru-106 181i7.6 178i18 146.8-209.2 Cs-134 9.7i3.0 10.0 5.0 1 3-18.7 Cs-137 11.7il.2 10.0i5.0 1 3-18.7 STW-563 Water Feb 1989 I-131 109.0i4.0 06.0 11.0 86.9-125.1 STW-564 Water Feb l989 H-3 2820i20 27541356 2137-3371 STW-565 Water Mar 1989 Ra-226 4.2f03 4.9d0.7 3.7-6.1 Ra-228 1.9il.0 1.7103 1.2-2.2 STW-566 Water Mar 1989 U
5.0f0.0 5.0f6.0 0.0-15.4 STAF-567 Air Filter Mar 1989 Gr. alpha 21.7il.2 21.015.0 123-29,7 Gr. beta 68314.2-62.0i5.0 53 3-70.7 Sr-90 20.0i2.0 20.0il.5 17.4-22.6 Cs-137 21311.2 20.0i5.0 11 3-28.7 r
A-6
Tcble A-1. (continued)
I b
Concentration in DCi/L _
lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis
- 2ac Is, N=1 Control Limits STW-568 Water Apr1989 569 (Blind)
Sample A Gr. alpha 22.7123 29.0t7.0 16.9-41.2 Ra-226 3.6do.6 35do.5 2.6-4.4 Ra-228 2.611.0 3.60.5 2.7-4.5 U
3.0io.0 3.016.0
.0.0-13.4 Sample B Gr. beta 52316.1 57.0 5.0 433-65.7 Sr-89 93i5.4 8.015.0 0.G.16.7 Sr-90 7.0f0.0 8.0i15 5.4-10.6 Cs-134 21.015.2 20.0 5.0
.11 3-28.7 Cs-137 23.0i2.0 20.015.0 11328.7 STM-570 Milk Apr1989 Sr-89 26.0110.0 19.0i5.0 303-47.7 Sr-90 45.714.2 55.0i3.0 49.8-60.2 Cs-137 54.0I6.9 50.0i5.0 41 3-58.7 K-40 1521d208 1600180 1461-1739 STW-5718 Water May1989 Sr-89
<0.7 6.0i5.0 0.0-14.7 Sr-90 5.011.0 6.011.5 3.4-8.6 STW-572 Water May 1989 Gr. alpha 24.0 2.0 30.0ia.0 16.1 43.9 Gr. beta 493 15.6 50.0 5.0 41 3-58.7 STW-573 Water Jun 1989 Ba-133 50.7il.2 49.0 5.0 40 3-57.7 Co-60 313i23 31.015.0 223-39.7 Zn-65 167110 165il7 135.6-194.4 Ru-106 123 9.2 128i13 105.5-150.5 Cs-134 403i1.2 3915-303-47.7 Cs-137 223il.2 20i5 11 3-28.7 STW-574 Water Jun 1989 H-3 45131136 45031450 3724-5282 STW-575 Water Jul1989 Ra-226 16.813.1 17.712.7 13.0-22.4 Ra-228 13.813.7 183 27 13.6-23.0 STW-576 Water Jul1989 U
40311.2 41.0f6.0 30.6i51.4 STW-577 Water Aug 1989 I-131 84.715.8 83.0ia.0 69.1-96.9 STAF-579 Air Filter Aug 1989 Gr. alpha 6.0do.0 6.015.0' O.0-14.7 Cs-137 103i23 10.015.0 13-18.7 A-7
, ]. -
f i
Tabl2 A-1. (continued) l
'i j
Concentration in oCi/Lb Iab Sample Date -
TIML Result EPA Resultd i
Code Type Collected -
Analysis
- 2aC 1s, N=1 Control Limits j
l STW-580 Water Sep 1989 Sr-89 14.711.2 14.0i5.0 5 3-22.7 l
Sr-90 9.711.2 10.011.5 7.4-12.6 Gr. beta 8.7i23 6.015.0 0.0-14.7 _
f STW-581 Water Sep 1989 Gr. alpha 5.010.0 4.015.0 0.0-12.7 l
STW-583 Water ~
Oct 1989 Ba-133 603i10.0 59.0i6.0 48.649.4
-I Co40 29.014.0 30.0i5.0 R1.1-38.7 Zn45 1323d6.0 129.0i13.0 1065-151.5 l
Ru-106 155316.1 161.0116.0 1333-188.7 Cs-134 30.7i6.1 29.0i5.0 203-37.7
_i Cs-137 66314.6 59.0i5.0 503-67.7 STW-584 Water Oct 1989 H-3 3407i150 3496i364 2866-4126 i
i STW-585 Water Oct 1989 586 (Blind) i Sample A Gr. alpha 41.7d9.4 49.0112.0 28.2-69.8 i
Ra-226 7.9 0.4 8.4i13 6.2-10.6 Ra-228 4.410.8 4.li0.6 3.1-5.1 i
U 12.0d0.0 12.Qi6'.0 1.6 22.4 5
Sample B Gr. beta 31.7i23 32.015.0 23.3-40.7 Sr-89 13314.2
~ 15.0i5.0 6323.7 Sr-90 7.0i2.0 7.03.0 4.4-9.6 l
Cs-134 5.0i0.0 5.0i5.0 0.0-13.7 i
Cs-137 7.0d0.0 5.015.0 0.0 13.7 STW-587 Water Nov 1989 Ra-226 7.9d0.4 8.7113 6.4-11.0 Ra-228 8.9il.2 9311.2 6.9-11.7 STW-588 Water Nov 1989 U
15.030.0 15.016.0 4.6-25.4' STW-589 Water Jan 1990 Sr-89 22.7i5.0 25.0i5.0 163-33.7 Sr-90 173 1.2 20.011.5 17.4-22.6-i STW-591 Water-Jan 1990 Gr. alpha 103i3.0 12 015.0 3 3-20.7 i
Gr. beta 123it.2 12.0f5.0 3 3-20.7 I
t A-8 h
L
Table A-1. (continued)
Concentration in oCi/Lb Lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis i2cc Is, N=1 Cor. trol Limits STW-592 Water Jan 1990 Co-60 14.7i23 15i5.0 6 3-23.7 Zn-65 135.0d6.9 139.0114.0 114.8-163.2 Ru-106 1333113.4 139.0114.0 '114.8-163.2 Cs-134 17.311.2 18.0d5.0 93-26.7 Cs-137 19311.2 18.0 5.0 9 3-26.7 Ba-133 78.0d0.0 74.017.0 61.9-86.1 STW-593 Water Feb 1990 H-3 4827tB3 4976i498 4113 5839 STW-594 Water Mar 1990 Ra-226 5.0i0.2 4.9d0.7 4.1-5.7 Ra-228 13.5 0.7 12.7il.9 9.4-16.0 STW-595 Water Mar 1990 U
4.0d0.0 4.0i6.0 0.0-14.4 STAF-596 Air Filter Mar 1990 Gr. alpha 7311.2 5.0i5.0 0.0 13.7 Gr. beta 34.0d0.0 31.015.0 223-39.7 Sr-90 10.0do.0 10.011.5 7.4-12.6 Cs-137 9311.2 10.015.0 1 3-18.7 STW-597 Water Apr1990 598 (Blind)
Sample A Gr. alpha 81.013.5 90.0i23.0 50.1-129.9 Ra-226 4.9dO.4 5.0 0.8 3.6-6.4 Ra-228 10.6i03 10.2i1.5 7.6-12.8 U
18.7t3.0 20.0n.0 9.6-30.4 Sample B Gr. beta 51.0110.1 52.0i5.0 43 3-60.7 Sr-89 9311.2 10.015.0 1 3-18.7 Sr-90 103i3.1 10.0 1.5 83-11.7 Cs-134 16.0 0.0 15.0i5.0 6323.7 Cs-137 19.0i2.0 15.0i5.0 6 3-23.7 STM-599 Milk Apr1990 Sr-89 21.713.1 23.0i5.0 14 3-31.7 Sr-90 21.0i7.0 23.015.0 143-31.7 I-131 98.7il.2 99.0i10.0 81.7-1163 Cs-137 26.0i6.0 24.015.0 153-32.7 K
1300.0E9.2 1550.0 78.0 1414.7-16853--
STW-600 Water May1990 Sr-89 6.0 2.0 7.0i5.0 0.0-15.7 Sr-90 6.7tl.2 7.0i5.0 0.0-15.7 STW-601 Water May 1990 Gr. alpha 11.012.0 22.016.0 11.6-32.4 Gr. beta 12311.2
. 15.0i5.0 6 3-23.7 A-9
8 5
i Ttble A-1. (centinued)
Concentration in oC1/Lb Imb Sample Date TIML Result EPA Resultd~
Code Type Collected Analysis 12ac 1s, N=1 Control Limits STW-602 Water Jun 1990 Co-60 253123 24.0i5.0 153-32.7 Zn-65 155.0i10.6 148.0115.0 130.6-165.4 Ru-106 202.7il7.2 210.0i21.0 173.6-246.4 Cs-134 23.711.2 24.015.0 18.2-29.8 Cs-137 27.7i3.1 25.0d5.0 163-33.7 r
Ba-133 100.7d8.1 99.0110.0 81.7-1163 q
l
~
STW-603 Water Jun 1990 H-3 29271306 2933i358
'2312-3554 i
STW-604 Water Jul1990 Ra-226 11.8d0.9 12.li1.8 9.0-15.2 i
Ra-228 4.lil.4 5.li13 2.8-7.4 STW-605
. Water Jul1990 U
20311.7 20.8i3.0 15.6-26.0
'[
~
STW-606 Water Aug 1990 I-131 43.0il.2 39.0i6.0 28.6-49.4 STW-607 Water Aug 1990 Pu-239 10.0il.7 9.1d0.9 7.5-10.7 STAF-608 Air Filter Aug 1990 Gr. alpha 14.0 0.0 10.0i5.0 1 3-18.7 Gr. beta 65311.2 62.015.0 53 3-70.7 Sr-90 19.016.9 20.0i5.0 11 3-28.7 Cs-137 19.012.0 20.015.0 11 3-28.7 STW-609 Water Sep 1990 Sr-89 9.0i2.0 10.015.0 1 & 18.7 Sr-90 9.0i2.0 9.0i5.0 0 3-17.7.
STW-610 Water Sep 1990 Gr. alpha 83il.2 10.0 5.0 1 3-18.7 Gr. beta 10.311.2 10.0i5.0 13-18.7 STM-611 Milk Sep 1990 Sr-89 11.7i3.1-16.0 5.0 7 3-24.7 Sr-90 15.010.0 20.0i5.0' 11 3-28.7 I-131 63.016.0 58.016.0 47.6 68.4 Cs-137 20.012.0 20.0i5.0 11 3-28.7 K
1673 3i70.2 1700.0185.0 1552.5-1847.5 STW-612 Water Oct 1990 Co-60 20313.1 20.0d5.0 11 3-28.7 Zn-65 1153112.2 115.0*12.0 94.2-135.8 Ru-106 152.0i8.0 151.0i15.0 125.0-177.0 Cs-134 11.0do.0 12.0i5.0 3 3-20.7 Cs-137 14.0i2.0.
12.0i5.0 33-20.7 Ba-133 176Jd9.9 110.0i11.0 90.9-129-STW-613 Water Oct 1990 H-3
~71671330 7203i720 5954-8452
~.
A-10
e Tcble A-1. (continued) i L
Concentration in DC1/Lb
]
Lab Sample Date TIML Result EPA Resultd l
Code Type Collected Analysis 12ac Is, N=1 Control Limits i'
STW-614 Water Oct1990 615 Sample A Gr. alpha 68.717.2 62.0i16.0 34.2-89.8 l
Ra-226 12.9:t03 13.612.0 10.1-17.1'
.l Ra-228 4.230.6 5.0i13 2.7-73 U
10.430.6 10.2i3.0 5.0-15.4 Sample B Gr. beta 55.018.7 53.0i5.0 44 3-61.7 -
j Sr-89 15.7i2.9 20.0i5.0 -
11 3-28.7 Sr-90 12.0i2.0 15.0i5.0 6 3-23.7 i
Cs-134 9.011.7 7.0i5.0 0.0-15.7' i
Cs-137 7.711.2 5.0i5.0 0.0-13.7 i
STW-616 Water Nov 1990 Ra-226 6.811.0 7.4tl.1 5.5-9.3 l
Ra-228 5311.7 7.711.9 4.4-11.0 l
STW-6178 Water Nov 1990 U
35.0:10.4 35.Si3.6 29 3-41.7 STW-618 Water Jan 1991 Sr-89 4311.2 5.05.0' O.0 -13.7. -
Sr-90 4.711.2 5.0i5.0 0.0-13.7-~
f STW-619 Water Jan 1991 Pu-239 3.60.2 33iO3 2.8-3.8 STW-620 Water Jan 1991 Gr. alpha 6.713.0 5.0i5.0 0.0-13.7
'{
Gr. beta 63i1.2 5.0i5.0 0.0-13.7
]
STW-621 Water Feb 1991 Co-60 41318.4 40.015.0 31 3-48.7 3
Zn45 166.7i19.7 149.0 15.0 123.0-175.0 Ru-106 209.7118.6 186.0119.0 153.0-219.0 -
Cs-134 9.0i2.0 8.0t5.0 0.0-16.7 Cs-137
-9.711.2 8.0i5.0 -
-0.0-16.7 Ba-133 85.739.2 75.0i8.0 61.1-88.9 STW-622 Water Feb 1991 I-131 813 i6.1 75.0i8.0 61.1-88.9 STW-623 Water Feb l991 H-3 4310.0i144.2 4418.0i442.0 3651.2-5184.8.
l STW-624 Water Mar 1991 Ra-226 31.413.2 31.8i4.8 23.5-40.1 Ra-228 NDh 21.li53 11.9-303 -
i STW-625 Water Mar 1991 U
6.7d0.4 7.6i3.0 2.4-12.8 A-11 4
1
,4
+
Tr.ble A-1. (continued)
Concentration in oCi/Lb Iab Sample Date TIML Result EPA Resultd Code Type Collected Analysis 12cc 1s, N=1 Control Limits STAF-626 Air Filter Mar 1991 Gr. alpha 38.7il.2 25.0d6.0 14.6-35.4 Gr. beta 130.014.0 124.016.0 113.6-134.4 Sr-90 35.711.2 40.0d5.0 31.3-48.7 Cs-137 33.7*4.2 40.0i5.0 31.3-48.7 STW-627 Water Apr1991 628 Sample A Gr. alpha 51.0i6.0 54.0i14.0 29.7-78 3 Ra-226 7.0do.8 8.011.2 5.9-10.1 Ra-228 9.7il.9 15.2i3.8 8.6-21.8 U
27.712.4 29.8i3.0 24.6-35.0 Sample B Gr. beta 933 6.4 115.0il7.0 85.5-144.5 Sr-89 21.0i3.5 28.015.0 193-36.7 Sr-90 23.0f0.0 26.0 5.0 17.3-34.7 Cs-134 273 1.2 24.0i5.0
i.3-32.7 Cs-137 29.012.0 25.0i5.0 16.3-33.7 STM-629 Milk Apr1991 Sr-89 24.018.7 32.0i5.0 23.3-40.7 Sr-90 28.0i2.0 32.0i5.0 233-40.7 I-131 65 3 i14.7 60.0i6.0 49.6-70.4 Cs-137 54.7111.0 49.0i5.0 40 3-57.7 i
K 1591.7i180.1 1650.0i83.0 1506.0-1794.0 STW-630 Water May 1991 Sr-89 40.7t23 39.0 5.0 30.3-47.7 Sr-90 23.7il.2 24.0i5.0 15.3-32.7 STW-631 Water May 1991 Gr. alpha 27.7i5.8 24.016.0 13.6-34.4 l
Gr. beta 46.0 0.0 46.0 5.0 37.3-54.7 STW-632 Water Jun 1991 Co-60 11.3il.2 10.015.0 1 3-18.7 Zn-65 1193i163 108.0i11.0 88.9-127.1 Ru-106 1623 119.0 149.Qt15.0 123.0 175.0 CS-134 153tl.2 15.0i5.0 6 3-23.7 Cs-137 16311.2 14.0i5.0 53-22.7 Ba-133 74.016.9 62.0d6.0 51.6-72.4 t
STW-633 Water Jun 1991 H-3 13470.01385.8 12480.0i1248.0 10314.8-14645.2 STW-634 Water Jul1991 Ra-226 14.9d0.4 15.9i2.4 11.7-20.1 Ra-228 17.611.8 16.7i4.2 9.4-24.0
~.
A-12
~ -._
l Tcbla A-1. (continued)
Concentration in oCi/Lb i
Lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis i2aC 1s, N=1 Control Limits i
STW-635 Water Jul1991 U
12.830.1 14.213.0 9.0 19.4
-l STW-636 Water Aug 1991 1-131 -
19311.2 20.0t6.0 9.6-30.4 I
STW-637 Water Aug 1991 Pu-239 21.430.5 19.4tl.9 16.1-22.7 STAF-638 Air Filter Aug 1991 Gr. alpha 33.0i2.0 25.016.0 14.6-35.4 Gr. beta 88.7il.2 92.0i10.0 80.4-103.6 Sr-90 27.0i4.0 30.0i5.0 21 3-38.7 i
i Cs-137 26311.2 30.0i5.0 21 3-38.7 STW-639 Water Sep 1991 Sr-89 47.0110.4 49.0i5.0 40 3-57.7 Sr-90 24.0i2.0 25.015.0 163-33.7 i
STW-640 Water Sep 1991 Gr. alpha
-12.014.0 10.0i5.0 1 3-18.7 I
Gr. beta 203 i1.2 20.0i5.0 11 3-28.7 STM-641 Milk Sep 1991 Sr-89 20 3 i5.0 25.015.0 163-33.7 -
Sr-90 19.7i3.1 25.0i5.0 163-33.7 I-131 130.7116.8 108.0111.0.
88.9-127.1' Cs-137 33.713.2 30.0i5.0 21 3-38.7 K
1743 3 i340.8 ' 1740.0187.0 1589.1-1890.9 STW-642 Water Oct 1991 Co-60 29.711.2 29.0i5.0 203-37.7 2n-65 75.7iB3 73.017.0 60.9-85.1 Ru-106 196 3i15.1 199.0i20.0 164 3-233.7.
Cs-134 9.711.2 10.015.0 1 3-18.7 Cs-137 11.0i2.0 10.0 5.0 13-18.7 -
Ba-133 94.7i3.1 98.0110.0 80.7-115 3 i
STW-643 Water Oct 1991 H-3 2640.01156.2 2454.0i352.0. 1843 3-3064.7 l
STW-644 Water Oct 1991 645 Sample A Gr. alpha 73.0i13.1 82.0i21.0 45.6-118.4 Ra-226 20.9i2.0 22.0i33 163-27.7 Ra-228 19.6i23 22.2i5.6 125-31.9 U
13.510.6 13.5i3.0 83-18.7 j
Sample B Gr. beta 553f3.1 65.0110.0 47.7-823 i
Sr-89 9.7i3.1 10.0i5.0 1 3-18.7 Sr-90 8.711.2 10.015.0
.1 3-18.7 Co-60 203 i1.2 20.0i5.0 11 3-28.7 j
Cs-134 9.0iS3 10.015.0 1 3-18.7 Cs-137 14.7i5.0 11.0i5.0 2 3-19.7 i
A-13 1
1
Tcbl2 A-1. (continued)
Concentration in oCf /Lb lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis i2cc Is, N=1 Control Limits i
STW-646 Water Nov 1991 Ra-226 5.61.2 6.5il.0 4&8.2 Ra-228 9.6 03 8.li2.0 4.6 11.6 STW-647 Water Nov 1991 U
24.7i23 24.9i3.0 197-30.1 l
STW-648 Water Jan 1992 Sr-89 42.7i6.4 51.015.0 423-59.7 Sr-90 183i3.1 20.015.0 11 3-28.7 STW-649 Water Jan 1992 Pu-239 16.lio.8 16.811.7 13.9-19.7 STW-650 Water Jan 1992 Cr. alpha 23.7d9.2 30.013.0 16.1-43.9 Cr. beta 27.7 4.2 30.015.0 21 3-38.7 STW-651 Water Feb 1992 I-131 60314.2 59.0i6.0 48.6-69.4 STW-652 Water Feb 1992 Co-60 40 3 i5.0 40.0i5.0 313-48.7 Zn-65 148.0115.0 150.7 6.1 122.0-174.0 Ru-106 188.7128.8 203.0i20.0 1683-237.7 Cs-134 31.714.2 31.015.0 223-39.7 Cs-137 51.0i3.4 49.015.0 403-57.7 Ba-133 79.013.4 76.018.0 62.1-89.9 STW-653 Water Feb l992 H-3 7714.01119.6 7904.0 790.0 6533.4-9274.6 STW-654 Water Mar 1992 Ra-226 9.0do.4 10.111.5 75125 Ra-228 18.8d0.6 15.Si3.9 8.7-223 STW-655 Water Mar 1992 Rn-222i STW-656 Water Mar 1992 U
25.li1.9 253 3.0 20.1-30.5 STW-657 Water Mar 1992 Rn-2221 STAF-658 Air Filter Mar 1992 Gr. alpha 7.0do.0 7.015.0 0.0-15.7 Gr. beta 39311.6 41.0t5.0 323-49.7 Sr-90 13.711.6 15.015.0 6 3-23.7 Cs-137 10.0 0.0 10.Di5.0 1318.7 STW-659 Water Apr1992 660 Sample A Gr. alpha 35.7i6.1 40.Qi10.0 22.7-573 Ra-226 12.711.2 14.9i2.2 11.1-18.7 Ra-228 14.512.1 14.0i3.5 7.9-20.1 U
3.9d0.2 4.0i3.0 0.0-9.2 A-14
a..a4 y
Ttbb A-1. (centinued)
Concentration in oCi/Lb Iab Sample Date
- TIML Result EPA Resultd Code Type Collected Analysis 12aC 1s, N=1 Control Limits STW-659 Water Apr1992 i
660 Sample B Gr. beta 113.017.2 140.0121.0
.103.6-176.4-Sr-89 123i4.2 15.015.0 6323.7 l
Sr-90 15.0il.2 17.0i5.0 8 3-25.7 Co40 61.0i4.0 56.0 5.0 473 44.7-Cs-134 243 i1.2 24.0i5.0 153-32.7 Cs-137 24.012.0 22.0d5.0 133-30.7 STM-661 Milk Apr1992 Sr-89 25317.6 38.0f5.0 29 3-46.7.
j Sr-90 243 i3.1 29.0i5.0 203-37.7 t
I-131 78.7t9.5 78.0i8.0 64.1-91.9 Cs-137 393i23 39.0i5.0
'303 47.7 K
1610.0172.1 1710.0dB6.0 1560.8-1859.2
[
STW-662 Water May1992 Sr-89 24.014.0 29.0t5.0 203-37.7' l
Sr-90 6.711.2 8.015.0 0.0-16.7 l
STM-663 Water May1992 Gr. alpha 123i2.1 15.015.0 6 3-23.7
.l Gr. beta 46.0i5.0 44.015.0 353-52.7 j
STW-664 Water Jun 1992 Co-60 203il.2 20.0i5.0 11 3-28.7 '
Zn-65 1033i10.6 99.0110.0 81.7-1163
- Ru-106 142.7i23.7 141.0114.0 116.7-1653 Cs-134 143i23 15.0i5.0 6 3-23.7 Cs-137 15.0i2.0 15.0i5.0 6 3-23.7 Ba-133 92.7i11.0 98hi10.0 80.7-115 3 STW-665 Water Jun 1992 H-3 21533 1144.6 2125.01347.0 1523.0-2727.0 STW-666 Water July 1992 Ra-226
?? '4+? ?
24.9i3.N 18.5-313 l
Ra-228 16.7 3.1 16.7i4.2 9.4-24.0 STW-667 Water July 1992 U
3.6203 4.0i3.0 0.0-9.2 l
STW-668 Water August 1992 I-131 47.0i3.5 45.0d6.0 -
34.6-55.4
)
1 STW-669 Water August 1992 Pu-239 8530.9 9.0i0.9 7.4-10.6 j
STAF-670 Air Filter August 1992 Gr. alpha 25.711.2 30.0i8.0 16.1-43.9.
Gr. beta 69.0i2.0 69.0i10.0 51.7-863 j
Sr-90 26.014.0 25.0i5.0-163-33.7 j
Cs-137 16.0d0.0 18.0t5.0
-9 3-26.7 i
~.
A-15
~
Tcbl2 A-1.. (continued)
Concentration in oCi/Lb Iab Sample Date TIML Result EPA Resultd l
Code Type Collected Analysis 12aC 1s, N=1 Control Limits l
STW-671 Water Sept.1992 Sr-89 16.014.0 20.0i5.0 11 3-28.7 Sr-90 14313.1 15.0i5.0 6 3-23.7
.f STW-672 Water Sept.1992 Gr. alpha 43.0i13.1
' 45.0111.0.
25.944.1 l
Gr. beta 413i18.6 50.0i5.0 41 3-58.7
.t STM-673 Milk Sept.1992 Sr-89 11.013.5 15.015.0 6 S 23.7 l
Sr-90 12.7il.2 15.015.0 6 3-23.7 j
I-131 109.7119.4 100.0110.0 -
82.7-1173 Cs 137 14.0i3.5 15.015.0 6 3-23.7 K
1540.0i103.9 1750.0iB8.0 - 1597.3-1902.7 I
l::
STW-674 Water Oct.1992 Co40 113i23 10.015.0 13-18.7 l
Zn45 169.7125.0 148.0i15.0 122.0-174.0 j
Ru-106 170.1123 175.0i18.0 143.8-206.2 Cs-134 9.7i23 8.015.0 0.0-167 Cs-137 9.711.2-8.015.0 0.0 16.7 Ba-133 80319.0 74.0i7.0 61.9-86.1 STW-675 Water Oct.1992 H-3 5896.71136.2.5962.0iS96.0 4928.0 4996.0-l STW-676 Water Oct.1992
-677 Sample A Gr. alpha 24.7d5.0.
29.017.0 16.9-41.1 Ra-226 7.1*0.4 7.411.1 55-93 i
Ra-228 11.Si1.0 10.0i25 51-143 U
9.7f0.5 10.2i3.0
-5.0-15.4 Sample B Gr. beta 42.7t8.1 53.0110.0 355-703 Sr-89 6.7il.2
- 8.0i5.0 -
0.0-16.7--
Sr-90 10.0i2.0 10.0i5.0 13-181 -
l Co40
'15.0i2.0 15.0i5.0 6 3-23.7' Cs-134 5.711.2 5.015.0-0.0-13.7 -
l Cs-137 8.012.0 8.0f5.0 0.0-16.7' i
-)
i
~.
A-16
5
+:
Tcb12 A-1. (centinued) i Concentration in pCi/Lb l
Lab Sample Date TIML Result EPA Resultd Code Type Collected Analysis
- 2aC 1s, N=1 Control Limits 3
STW-678 Water Nov.1992 Ra-226 7.5do.8 7.5il.1 5.6-9,4 Ra-228 5.8f0.7 5.0i13 2.7-73
'l f
STW-679 Water Nov.1992 U
15.511.1 15.2i3.0 10.0-20.4 i
i a Results obtained by Teledyne Isotopes Midwest Laboratory as a participant in the environmental sample crosscheck program operated by the Intercomparison and Calibration Section, Quality Assurance Branch, Environmental Monitoring and Support Laboratory, US.
Environmental Protection Agency (EPA), las Vegas, Nevada.
b All results are in pCi/1, except for elemental potassium (K) data in milk, which are in mg/1; air filter samples, which are in pCi/ filter; and food, which is in mg/kg.
c Unless otherwise indicated, the TIML results are given as the mean i 2 standard deviations for three determinations.
l d USEPA results are presented as the known values and expected laboratory precision (1s,1-l determination) and control limits as defined by EPA.
e NA = Not analyzed.
[
fND = No data; not analyzed due to relocation oflab.
l 8 Sample was analyzed but the results not submitted to EPA because deadline was missed (all data on file).
ND = No data; sample lost during analyses.
h I ND = No data; special EPA testing.
(
i L
r i
i
~.
A-17 i
Tc.bl2 A-2. Crosschech program results, thermoluminescent doshneters (TLDs).
mR Teledyne Average i2cd Lab Result Known (All Participants)
Code HDType Measurement i2aa Value 2nd International Intercompadsonb CaF :Mn Field 17.011.9 17.1 16.4i7.7 115-2 2
Bulb Lab 20.8i4.1 21 3 18.817.6 3rd International Intercompadsone CaF :Mn Field 30.713.2 34.914.8 31.5i3.0 115-3 2
Bulb Lab 89.6d6.4 91.7i14.6 66.2i24.0 4th International Intercompansonf CaF :Mn Field 14.111.1 14.111.4 16.019.0 115-4 2
Bulb lab (Low) 93i13 17 7+7 4 12.017.4 Lab (High) 40.4tl.4 45.8d9.2 43.9113.2 5th International IntercompansonS CaF :Mn Field 31.4il.8 30.016.0 30.2i14.6 115-5A 2
Bulb Lab at beginning 77.4i5.8 75.2i7.6 75.8 40.4 Lab at the end
%.615.8 88.4i8.8 90.7 31.2 i
115-5B LIF-100 Field 30.314.8 30.016.0 30.2114.6 Chips Field at beginning 81.1 7.4 75.217.6 75.8i40.4 lab at the end 85.4111.7 88.4iS.8 90.7t31.2 7th International Comparisonh 115-7A LIF-100 Field 75.4i2.6 75.8i6.0 75.1 5.8 Chips lab (CMO) 80.0i3.5 79.914.0 77.9127.6 Iab(Cs-137) 66.612.5 75.0i3.8 73.0+777
~.
~
A-18
Tcbl2 A-2. Crosscheck' progem results, thermoluminescent dosimeters (TLDs).
mR l
Teledyne _
Average 12cd j
Lab Result -
Known. (All Tarticipants) l.
Code H.D Type Measurement 12aa Value CaF :Mn Field 71.512.6 75.8i6.0 75.1129.8 115-78 2
Bulbs l
Lab (Co 60) 84.8i6.4 79.914.0 77.9i27.6
.Iab (Cs-137) 78.811.6 75.0i3.8 73.0122.2 y
115-7C CaSO :Dy Field 76.8i2.7 75.8i6.0 75.1i29.8 l
4 Cards Lab (Co-60) 82.Si3.7 79.914.0 77.9i27.6 I
i Lab (Cs-137) 79.0i3.2 75.013.8
. 73.0122.2 l
8th Intemational intercomparisoni 115-8A LIF-100 Field Site 1 29.511.4 29.7il.5 28.9i12.4' Wp Field Site 2 11.3do.8 10.410.5 10.119.06 Iab(Cs-137) 13.7d0.9 17.2i0.9 16.2i6.8 4
i CaF :Mn Field Site 1 32.3i1.2 29.7i1.5 28.9112.4 115-8B 2
- Bulbs Field Site 2 9.011.0 10.4f0.5.
10.1 9.0
!j Iab(Cs-137) 15.8 0.9 17.2i0.9 16.2i6.8-I 11%8C CaSO.Dy Field Site 1 32.2i0.7 29.7tl.5 28.9112.4 4
Cards Field Site 2 10.6do.6 10.410.5-10.li9.0 -
i Iab(Cs-137) 18.130.8_
17.2i0.9 ^
16.2i6.8 Teledyne Testine 89-1 LiF-100 Iab 21.0do.4 -
22.4
=
i Chips 89-2 Teledyne -
.Iab 20.9il.0 20.3 CaSO :Dy.
l 4
Cards
- i A-19 l
Tcble A-2. (continued) mR d
Teledyne Average 12a lab Result Known (All Participants)
Code TLDType Measurement 12ca Value Teledyne Testing 90-1k Teledyne lab 20.611.4 19.6 CASO D1 4
Cards 93-2I Teledyne lab 100.8i4.3 100.0 CaSO Dy 4
Cards 91-1m Teledyne lab 33.4i2.0 32.0 CaSO -Dy 55.2 4.7 58.8 4
Canis 87.8 6.2 85.5 92-in LiF-100 12b 11.li0.2 10.7 Chips 25.6i0.5 25.4 46.4d0.5 46 3 92-20 Teledyne Lab (Reader #1) 20.110.1 20.1 CaSO Dy 40.6do.1 40.0 4
Cards 60.0113 603 Lab (Reader #2) 203103 20.1 39.2iO3 40.0 60.7do.4 60 3 a Lab result given is the mean 12 standard deviations of three determinations.
b Second International Intercomparison of Environmental Dosimeters conducted in April of 1976 by the Health and Safety Laboratory (HASL), New York, New York, and the School of Public Health of the University of Texas, Houston, Texas.
c Value determined by sponsor of the intercomparison using continuously operated pressurized ion chamber.
d Mean 12 standard deviations of results obtained by all laboratories participating in the program, e Third International Intercomparison of Environmental Dosimeters conducted in summer of 1977 by Oak Ridge National Laboratory and the School of Public Health of the University of Texas, Houston, Texas.
f Fourth International Intercomparison of Environmental Dosimeters conducted in summer of 1979 by the School of Public Health of the University of Texas Houston, Texas.
8 Fifth International Intercomparison of Environmental Dosimeters conducted in fall of 1980 at Idaho Falls, Idaho and sponsored by the School of Public Health of the University of Texas, Houston, Texas and Environmental Measurements Laboratory, New York, New York, U.S.
Department of Energy.
~.
A-20
Table A-2. (continued) mR d
l Teledyne Average i2c Lab Result Known (All Participants)
Code TLD Type Measurement 2ca Value I
Footnotes (continued)
I h Seventh International Intercomparison of Environmental Dosimeters conducted in the spring and summer of 1984 at Las Vegas, Nevada, and sponsored by the US. Department of Energy, The US. Nuclear Regulatory Commission, and the US. Environmental Protection Agency.
Eighth International Intercomparison of Environmental Dosimeters conducted in the fall and
?
1 winter of 1985-1986 at New York, New York, and sponsored by the US. Department of Energy.
1 Chips were submitted in September 1989 and cards were submitted in November 1989 to Teledyne Isotopes, Inc., Westwood, NJ for inadiation.
k Cards were irradiated by Teledyne Isotopes, Inc., Westwood, NJ on June 19,1990.
1 Cards were irradiated by Dosimetry Associates, Inc., Northville, hG on October 30,1990.
m Irradiated cards were provided by Teledyne Isotopes, INC., Westwood, NJ. Irradiated on October 8,1991.
n Chips were irradiated by Teledyne Isotopes, Inc., Westwood, NJ on February 26,1992.
O Cards were irradiated by Teledyne Isotopes, Inc., Westwood, h3 on April 1,1992.
ll
+
"e A-21
Tcble A-3. In-house spiked samples.
Concentration in oCi/L Iab Sample Date TIML Expected Code Type Collected Analysis Result
_Known Precision 2s, n-3 a Activity 15, n=38 QC-MI-16 Milk Feb 1988 Sr-89 31.814.7 31716.0 87 Sr-90 25.5i2.7 27.8i3.5 5.2 I-131 26.4i0 5 23.215.0 10.4 Cs-134 23.8 23 24.2i6.0 8.7 Cs-137 26.5d0.8 25.116.0 87 QC-MI-17 Milk Feb 1988 I-131 10.6i1.2 143il.6 10.4 QC-W-35 Water Feb 1988 I-131 97i1.1 11.611.1 10.4 QC-W-36 Water Mar 1988 I-131 10.5i13 11.6it.0 10.4 QC-W-37 Water Mar 1988 Sr-89 17.li2.0 19.8 8.0 87 Sr-90 18.710.9 17315.0 5.2 QC-MI-18 Milk Mar 1988 I-131 33.2i23 26.715.0 10.4 Cs-134 31.312.1 30.2d5.0 87 Cs-137 29.9il.4 26.215.0 8.7 QC-W-38 Water Apr1988 I-131 17.111.1 14.2d5.0 10.4 QC-W-39 Water Apr1988 H-3 4439 31
'4176i500 724 QC-W 40 Water Apr1988 Co-60 23.7.t0.5 26.1 4.0 8.7 Cs-134 25.4i2.6 29.2i4.5 87 Cs-137 26.6 23 26.214.0 87 QC-W-41 Water Jun 1988 Gr. alpha 123d0.4 13.li5.0 87 Gr. beta 22.6i1.0 20.li5.0 8.7 QC-MI-19 Milk Jul1988 Sr-89 15.li1.6 16.4 5.0 87 Sr-90 18.010.6 183 5.0 5.2 I-131 88.4i4.9 86.6i8.0 10.4 Cs-137 22.7do.8 20.8 6.0 8.7 QC-W-42 Water Sep 1988 Sr-89 48.5i33 50.813.0 87 Sr-90 10.911.0 11.4i3.5 5.2 QC-W-43 Water Oct 1988 Co.60 20.9i3.2 21.413.5 87 Cs-134 38.7il.6 38.0f6.0 87 Cs-137 19.0i2.4 21.0i3.5 87 QC-W-44 Water Oct1988 I-131 22.210.6 233*3.5 10.4 1
1 A-22
'f ble A-3. Ir.-hsuse spiked samples (c ntinued)
Concentration in oCi/L lab Sample Date TIML Expected Code Type Collected Analysis Result Known Precision 2s, n=3 a Activity 1s, n=3a QC-W-45 Water Oct 1988 H-3 4109143 4153f500 724 QC-MI-20 Milk Oct 1988 I-131 59.8do.9 60.619.0 10.4 Cs-134 49.611.8 48.6i7.5 87 Cs-137 25.814.6 24.7i4.0 87
~
QC-W-46 Water Dec 1988 Cr. alpha 11.5i23 152i5.0 87 Gr. beta 26.5i2.0 25.7i5.0 87 QC-MI-21 Milk Jan 1989 Sr-89 25.5i10 3 34.0i10.0 8.7 Sr-90 28313.2 27.113.0 5.2 I-131 540i13 550120 10.4 Cs-134 24.5i2.6 22.6i5.5 87 Cs-137 24.0f0.6 20.St5.0 8.7 QC-W-47 Water Mar 1989 Sr-89 15.2i3.8 16.li5.0 8.7 Sr-90 16.4il.7 16.913.0 5.2 QC-MI-22 Milk Apr1989 I-131 363il.1 37.2i5.0 10.4 Cs-134 20.8i2.8 20.7i8.0 87 Cs-137 22.2i2.4 20.418.0 8.7 QC-W-48 Water Apr1989 Co 60 23.5i2.0 25.118.0 87 Cs-134 24.2il.1 25.918.0 87 Cs-137 23.611.2 23.0iB.O 87 QC-W-49 Water Apr1989 I-131 37.2 3.7 37.2i5.0 10.4 QC-W-50 Water Apr1989 H-3 3011d59 3089iS00 724 QC-W-51 Water Jun 1989 Gr. alpha 13.011.8 15.015.0 8.7 Cr. beta 26.011.2 25.5i8.0 8.7 QC-MI-23 Milk Jul1989 Sr-89 19.416.5 22.0i10.0 87 Sr-90 27.6 3.5 28.6i3.0 5.2 1-131 46.8i3.2 43.415.0 10.4 Cs-134 27.4il.8 28316.0 87 Cs-137 24.111.8 20.8 6.0 87 QC-MI-24 Milk Aug 1989 Sr-89 25.4*2.7 27.2 10.0 87 Sr-9C 46.011.1 47.819.6 52 QC-W-52 Water Sep 1989 I-131 9.6f03 9.711.9 10.4
~.
A-23
,' Table A-3. In-house spiked samples (continued)
Concentration in oC1/L Lab Sample Date TIML Expected Code Type Collected Analysis Result Known Precision 2s, n=3a Activity 1s, n=3a QC-W-53 Water Sep 1989 I-131 19.010.2 20.9 4.2 10.4 QC-W-54 Water Sep 1989 Sr-89 25.8i4.6 24.714.0 8.7 Sr-90
- 26. sis 3 29.715.0 -
52 QC-MI-25 Milk Oct 1989 I-131 70.0i3 3 73.5i20.0 10.4 Cs-134 22.li2.6 22.618.0 87 Cs-137 29.411.5 27.518.0 8.7 QC-W-55 Water Oct 1989 I-131 33.3113 353110.0 10.4 QC-W-56 Water Oct 1989 Co-60 15.2d0.9 17.415.0 87 Cs-134 22.114.4 18.9i8.0 87 Cs-137 27.211.2 22.918.0 87 QC-W-57 Water Oct 1989 H-3 3334i22 3379d500 724 QC-W-58 Water Nov 1989 Sr-89 10.9il.4d ti, tit,od gy Sr-90 10.411.@
10311.0d 52 QC-W-59 Water Nov 1989 Sr-89 101.0i6.0d 104.1110.5d 18.0 Sr-90 98.Qi3.0d 95.0110.0d 16.4 QC-W-60 Water Dec1989 Gr. alpha 10.8il.1 10.6i4.0 87 Gr. beta 11.6 0.5 11.414.0 87 QC-MI-26 Milk Jan 1990 Cs-134 19311.0 20.8i8.0 87 Cs-137 25.2 1.2 22.8i8.0 87 QC-MI-27 Milk Feb 1990 Sr-90 18.0 1.6 18.8 5.0 52 QC-MI-28 Milk Mar 1990 I-131 63.8122 62.6d6.0 10.8 QC-MI-61 Water Apr 1990 Sr-89 17.9 5.5 23.1i8.7 8.7 Sr-90 19.4 2.5 23.5d5.2 52 QC-MI-29 Milk Apr1990 1-131 90.7d9.2 82.5i8.5 10.4 Cs-134 183il.0 19.7d5.0 87 Cs-137 203 i1.0 18.2d5.0 87 QC-W-62 Water Apr1990 Co-60 8.7do.4 9.4i5.0 8.7 Cs-134 20.0dO2 19.7i5.0 87 Cs-137 28.7il.4 22.7 5.0 87
~.
A-24
4 Tchl2 A-3. In-house spiked samples (continued)
Concentration in oC1/L lab Sample Date TIML Expected Code Type Collected Analysis Result Known Precision 2s, n=3a Activlty 1s, n=3a QC-W-63 Water Apr 1990 I-131 63.518.0 66.016.7 11.4 QC-W-64 Water Apr 1990 H-3 19411130 1826.0i350.0 724 QC-W-65 Water Jun 1990 Ra-226 6.410.2 6.9i1.0 1.8 QC-W-66 Water Jun 1990 U
6.2i0.2 6.0i6.0 10.4 QC-hG-30 Milk Jul 1990 Sr-89 12.8d0.4 18.4110.0 87 Sr-90 18.211.4 18.7i6.0 S.2 Cs-134 46.0i1 3 49.0i5.0 8.7 Cs-137 27.6113 25315.0 8.7 QC-W-68 Water Jun 1990 Cr. alpha 9.810 3 10.6 6.0 87 Cr. beta 11.4do.6 11317.0 87 QC-MI-31 Milk Aug 1990 1-131 68.811.6 61.41123 10.4 QC-W-69 Water Sep 1990 Sr-89 17.7il.6 19.2i10.0 87 Sr-90 13.9tl.6 17.4i10.0 5.2 QC-MI-32 Milk Oct 1990 I-131 34.810.2 32.4 6.5 87 Cs-134 25.811.2 273 110.0 8.7 Cs-137 25312.0 22.4110.0 87 QC-W-70 Water Oct 1990 H-3 2355d59 2276i455 605 QC-W-71 Water Oct 1990 1-131 55.930.9 51.8110.4 10.4 QC-W-73 Water Oct 1990 Co-60 183 i2.7 16.825.0 87 Cs-134 283i23 27.0iF0 8.7 Cs-137 22.7113 22.415.0 8.7 QC-W-74 Water Dec 1990 Gr. alpha 21.411.0 26.1d6.5 11 3 Gr. beta 25.9il.0 223d5.6 87 a n=3 unless noted otherwise.
b n=2 i
c n=1 d Concentration in pCi/mL A-25
Thble A-3. In-house spiked samples (continued)
Concentration in oCi/L
[
o.
1 lab Sample Date TIML Expected Code Type Collected Analysis Result Known -
Precision 2s, n=1 e Activity -
1s, n=le QC-MI-33 Milk _
Jan 1991 Sr-89 20.7*33 21.6i5.0 5D Sr-90 19.011.4 23.0i3.0 3D Cs-134 22.211.7 19.6f5.0 54 Cs-137 26.1i1.6 223i5.0 SD j,
i QC-MI-34 Milk Feb1991 1-131 40.711.8 40.li6.0 6.0 QC-W-75 Water Mar 1991 Sr-89 18.8i1.5 233 i5.0 5.0 Sr-90 16.0 0.8 17.2i3.0 3D
~
QC-W-76 Water Apr1991 1-131 56.5il.7 59.0i5.9 5.9 QC-W-77 Water Apr1991 Co-60 16.4i2.2 15.715.0 5D Cs-134 23.8i2.5 22.6i5.0-5.0 Cs-137 25.012.4 21.115.0 SD QC-W-78 Water Apr1991 H-3 40271188 40801408 408 QC-MI-35 Milk Apr1991 1-131 48.0do.8 49.2*6.0 6D Cs-134 19.2 2.0 22.6t5.0 5.0 Cs-137
?? R+? ?
22.li5.0 5.0 QC-W-79 Water Jun 1991 Gr. alpha 7.410.7 7.815.0 5.0 Gr. beta 11.0*0.7 11.0i5.0 SD QC-MI-36 Milk Jul1991 Sr-89 28.li2.1 34.0110.0 5.0 Sr-90 11.6do.7 11.Si3.0 3.0 I-131 14.411.9 183 5.0 SD Cs-137 343i3.0 35.li5.0 SD-QC-W-80 Water Oct 1991 Sr-89 27.4f6.9 24.4f5.0 SD Sr-90 11.711.4 14.ti5.0 3D QC-W-81 Water Oct 1991 I-131 19.120.7 20.6*4.2 6D QC-W-82 Water Oct 1991 Co-60 22.612.7 22.li5.0 5D Cs-134 15.5il.8 17.6i5.0 5D Cs-137 17.5i2.1 17.6i5.0 SD l
QC-W-83 Water Oct 1991 H-3 4639i137 4382i438 438 QC-MI-37 Milk Oct1991 I-131 23.6i3.2 25.8i5.0 6D i
Cs-134 22.7i2.8 22.115.0 5D Cs-137 38313.0 35.115.0 5D QC-W-84 Water Dec1991 Gr. alpha 6.2io.6 7.8i5.0 SD
)
Gr. beta 11.0io.7 11.0t5.0 5.0 I
A-26 l
TCble A-3. In-ho me spiked sarnples (continued)
Concentration in oCf /L Lab Sample Date TIML Expected Code Type Collected Analysis Result Known Precision 2s, n=l e Activity 1s, n=l e QC-MI-39 Milk Jan 1992 Sr-89 21.6d6.5 31.2110.0 5.0 Sr-90 38.711.8 42.318.5 4.2 I-131 76.810.9 83.7i16.0 8.4 Cs-134 42.115.7 49.4110.0 5.0 Cs-137 55.2i6.4 53.0110.0 5.0 QC-W-85 Water Mar 1992 Sr-89 26.2i3.1 32.0110.0 5.0
^
Sr-90 24.411.4 28.0 6.0 3D QC-W-86 Water Apr1992 H-3 4080i190 40271403 ~
403 QC-W-87 Water Apr1992 I-131 33.5 0.6 33.2 12.0 6.0 QC-W-88 Water Apr1992 CCH50 17.5i2.7 19.7i10.0 '
5.0 Cs-134 28.9i2.5 33.5i10.0 5.0 Cs-137 41.0*3.0 38.9110.0 5.0 QC-MI-40 Milk Apr1992 Cs-134 58.0 2.6 55.9i10.0 54 Cs-137 43.713.0 38.9i10.0 5.0 QC-W-41 Milk Apr1992 I-131 50.3d0.8 55.9i11.2 5.6 QC-W-89 Water Jun 1992 Cr. alpha 15.310.8 13.6110.0 5.0 Cr. beta 17.2i0.9 17.6i10.0 5.0 QC-MI-42 Milk Aug.1992 Sr-89 41.4i5.9 51.2 10.2 5.0 Sr-90 48.912.5 51.9i10.4 5.2 Cs-134 20.112.8 20.2i10.0 5.0 Cs-137 26.2i2.7 26.1110.0 34 QC-W-90 Water Sept.1992 Sr-89 6.713.4 12.6110.0 5.0 Sr-90 16.111.4 15.616.0 3.0 QC-W-91 Water Oct.1992 I-131 34.912.2 34.9110.0 64 QC-W-92 Water Oct.1992 -
CcH50 11.4i1.9 9.2i10.0 5.0 Cs-134 18.7123 14.3i10.0 5.0 Cs-137 14.111.8 15.0110.0 5.0 L
P
- e A-27 k
L
l Tchle A-3. In-house spiked samples (centinued)
Concentration in oCl/L I.ab Sample Date TIML Expected Code Type Collected Analysis Result Known Precision 2s,n=18 Activity 1s, n=1 e I
QC-W-93 Water Oct.1992 H-3 3704i186 39041390 367 QC-W-94 Water Oct.1992 H-3 14,925i339 15,616 1,562 1562 QC-W-95 Water Oct.1992 I-131 64.212.7 67.2110.0 6.7 QC-MI-43 Milk Oct.1992 I-131 19.9il.0 21.5 6.0 6.0 Cs-134 14.2i3.4 12.7 10.0 5.0 Cs-137 14.115.2 17.li10.0 5.0 QC-MI-44 Milk Oct.1992 I-131 36.111.2 43.0 10.0 6.0 Cs-134 28.2 4.0 25.4i10.0 5.0 Cs-137 38.8d5.1 34.2110.0 5.0 e Starting in January 1991, all determmations are single.
k A-28 l
Table A-4. In house " blank" samples.
Concentration (DCi/L)
Acceptance lab Sample Date Results Criteria Code Type Collected Analysis (4.66 c)
(4.66 a)
SPS-5386 Milk Jan 1988 I-131
<0.1
<1 SPW-5448
" Dead" Water Jan 1988 H-3
<177
<300 SPS-5615 Milk Mar 1988 Cs-134
<2.4
<10 Cs-137
<2.5
<10 I-131
<0.3
<1 Sr-89
<0.4
<5 Sr-90 2.4dO.5a
<1 SPS-5650 D.I. Water Mar 1988 Th-228
<0.3
<1 Th-230
<0.04
^
<1 Th-232
<0.05
<1 U-234
<0.03
<1 U-235
<0.03
<1 U-238
<0.03
<1 Am-241
<0.06
<1 Cm-241
<0.01
<1 Pu-238
<0.08
<1 Pu-240
<0.02
<1 SPS-6090 Milk Jul 1988 Sr-89
<0.5
<1 r
Sr-90 1.8io.5a
<3 I-131
<0.4
<1 Cs-137
<0.4
<10 SPW-6209 Water Jul1988 Fe-55
<0.8
<1 SPW-6292 Water Sep 1988 Sr-89
<0.7
<5 Sr-90
<0.7
<1 SPS-6477 Milk Oct 1988 I-131
<0.2
<1 Cs-134
<6.1
<10 Cs-137
<5.9
<10 SPW-6478 Water Oct 1988 I-131
<0.2
<1 SPW-6479 Water Oct 1988 Co-60
<5.7
<10 Cs-134
<3.7
<10 Cs-137
<4,3
<10 SPW-6480 Water Oct 1988 H-3
<170
<300 A-29
T ble A-4. In-h:use " blank" samples (c:ntinued)
Concentration (t<!/L)
Acceptance Lab Sample Date Results Criteria Code Type Collected Analysis (4.66 o)
(4.66 c)
SPW-6625 Water Dec 1988 Gr. alpha
<0.7
<1 Gr. beta
<1.9
<4 SPS-6723 Milk Jan 1989 Sr-89
<0.6
<5 Sr-90 1.9 0.5a
<3 I-131
<0.2
<1 Cs-134
<4.3
<10 Cs-137
<4.4
<10 SPW-6877 Water Mar 1989 Sr-89
<0.4
<5 Sr-90
<0.6
<1 SPS-6963 Milk Apr1989 I-131
<0.3
<1-Cs-134
<5.9
<10 Cs-137
<6.2
<10 SPW-7561 Water Apr1989 H-3
<150
<300 SPW-7207 Water Jun 1989 Ra-226
<0.2
<1 Ra-228
<0.6
<1 SPS-7208 Milk Jun 1989 Sr-89
<0.6
<5 Sr-90 2.1do.5a
<1 I-131
<0.3
<1 Cs-134
<6.4
<10 Cs-137
<7.2
<10 SPW-7588 Water Jun 1989 Gr. alpha
<0.2
<1 Gr. beta
<1.0
<4 SPS-7322 Milk Aug1989 Sr-89
<1.4
<5 Sr-90 4.8il.0a
<1 1-131
<0.2
<1-Cs-134
<6.9
<10 Cs-137
<8.2
<10 SPW-7559 Water Sep 1989 Sr-89
<2.0
<5 Sr-90
<0.7
<1 SPW-7560 Water Oct 1989 I-131
<0.1
<1 SFW-7562 Water Oct1989 H-3
<140
<300
~.
A-30
Tcbla A-4. In-house " blank" samples (continued)
Concentration (oCf /D Acceptance Lab Sample Ebte Results Criteria Code Type Collected Analysis (4.66 o)
(4.66 o)
SPS-7605 Milk Nov 1989 I-131
<0.2
<1 Cs-134
<8.6
<10
=
<10
<10 SPW-7971 Water Dec1989 Gr. alpha
<0.4
<1 Gr. beta
<0.8
<4
~
SPW-8039 Water Jan 1990 Ra-226
<0.2
<1 SPS-8040 Milk Jan 1990 Sr-89
<0.8
<5 Sr-90
<1.0
<1 SPS-8208 Milk Jan 1990 Sr-89
<0.8
<5 Sr-90 1.610.5a
<3 Cs 134
<3.6
<10 Cs-137
<4.7
<10 SPS-8312 Milk Feb 1990 Sr-89
<03
<5 Sr-90 1.2dD3a
<3 SPW-8312A Water Feb 1990 Sr-89
<0.6
<5 Sr-90
<0.7
<5 SPS-8314 Milk Mar 1990 1-131
<03 41 SPS-8510 Milk May 1990 I-131
<0.2
<1 Cs-134
<4.6
<10 Cs-137
<4.8
<10 SPW-8511A Water May1990 H-3
<200
<300 SPS-6600 Milk Jul1990 Sr-89
<0.8
<5.
Sr-90 1.7do.6a
<t I-131
<03
<1 Cs-134
<5.0
<10 Cs-137
<7.0
<10 SPM-8877 Milk Aug 1990 I-131
<0.2
<1 L
SPW-8925 Water Aug 1990 H-3
<200
<300
~.
A-31
Tchl2 A-4. In-house " blank" samples (continued)
ConcentrationfrCl/L)
Acceptance I.ab Sample Date Results Cdteria Code Type Collected Analysis (4.66 c)
(4.66 o)
SPW-8926 Water Aug 1990 Gr. alpha
<03
<1 Gr. beta
<0.7
<4 SPW-8927 Water Aug 1990 U-234
<0.01
<1 U-235
<0.02
<1 U-238
<0.01
<1
^
SPW-8928 Water Aug1990 Mn-54
<4.0
<10 Co-58
<4.1
<10 l
<2.4
<10 Cs-134
<33
<10 Cs-137
<3.7
<10 SPW-8929 Water Aug 1990 Sr-89
<1.4
<5 Sr-90
<0.6
<1 SPW-69 Water Sep 1990 Sr-89
<1.8
<5 Sr-90
<0.8
<1 SFW-106 Water Oct1990 H-3
<180
<300 I-131
<03
<1 SPM-107 Milk Oct1990 I-131
<0.4
~<1 Cs-134
<33
<10 Cs-137
<43
<10 SPW-370 Water Oct1990 Mn-54
<1.7
<10 Co-58
<2.6
<10 Co40
<1.6
<10 Cs-134
<1.7
<10 Cs-137
<1.8.
<10 SFW-372 Water Dec1990 Gr. alpha
<03
<1 i
Gr. beta
<0.8
<4 SPS406 Milk Jan 1991 Sr-89
<0.4
<5 Sr 1.8do.4a
<1 Cs-134
<3.7
<10 Cs-137
<5.2
<10 SPS-421 Milk Feb 1991 I-131
<03
<1 SFW-451 Water Feb 1991 Ra-226
<0.1
<1 Ra-228
<0.9
<1 A-32 j
i
Tcbb A-4. In-house " blank" samples (cr.ntinued)
Concentration (tCl/D Acceptance Lab Sample Date Results Criteria Code Type Collected Analysis (4.66 o)
(4.66 o)
SPW-514 Water Mar 1991 Sr-89
<1.1
<5 Sr-90
<0.9
<1 SPW-586 Water Apr1991 I-131
<0.2
<1 Co-60
<2.5
<10 Cs-134
<2.4
<10 Cs 137
<2.2
<10 SPS-587 Milk Apr1991 1-131
<0.2
<1 Cs-134
<1.7
<10 Cs-137
<1.9
<10 SPW-837 Water Jun 1991 Gr. alpha
<0.6
<1 Gr. beta
<1.1
<4 SPM-953 Milk Jul1991 Sr-89
<0.7
<5 Sr-90 0.4do.3a
<1 I-131
<0.2
<1 Cs-137
<4.9
<10 SPM-1236 Milk Oct1991 I-131
<0.2
<1 Cs-134
<3.7
<10 Cs-137
<4.6
<10 SPW-1254 Water Oct1991 Sr-89
<2.8
<5 Sr-90
<0.7
<1 i
SPW-1256 Water Oct 1991 1-131
<0.4
<1 Co-60
<3.6
<10
~
Cs-134
<4.0
<10 Cs-137
<3.6
<10 SPW-1259 Water Oct1991 H-3
<160
<300 SPW-1444 Water Dec1991 Gr. alpha
<0.4
<1
[
Gr. beta
<0.8
<4 SPM-1578 Milk Jan 1992 Sr-89
<0.5
<5 Sr-90 1.3do.4a
<j I-131
<0.2
<1 Cs-134
<7.2
<10 Cs137
<8.0
<10 A-33
l Tcbl2 A-4. 'In-house " blank" samples (centinued)
Concentration (oCi/L)
Acceptance Lab Sample Date Results Criteria l
Code Type Collected Analysis (4.66 c)
(4.66 o)
{
s SPW-1860 Water Mar 1992 Sr-89
<0.6
<5 Sr-90
<0.4
<1 SPW-2067 Water Apr1992 H-3
<168
<300 SPW-2114 Water Apr1992 C-14
<1.0
<200 SPW-2119 Milk Apr1992 Co40
<6.3
<10 Cs-134
<4.5
<10 Cs-137
<5.4
<10 SPW-2126 Water Apr1992 1-131
<0.2
<1 SPM-2133 Milk Apr1992 I-131
<0.2
<1 1
SPW-2220 Water May1992 Co40
<2.1
<10 Cs-134
<2.1
<10 Cs-137
<2.3
<10 SPW-2369 Water Jun 1992 Gr. alpha
<0.4
<1 Gr. beta
<0.8
<4 SPM-2500 Milk Aug 1992 I-131
<0.4
<1 Sr-89
<1.2
<5 Sr-90
<0.9
<1 SPW-2666 Water Sept.1992 Sr-89
<0.8
<5 Sr-90
<0.S
<1 SFW-2828 Water Oct.1992 Co-60
<4.8
<10 Cs-134
<6.0
<10 Cs-137
<6.1
<10 1-131
<0.3
<1 H-3
<177
<300 SPM-2829 Milk Oct.1992 Co40
<9.3
<10 Cs-134
<6.4
<10 Cs-137
<7.2
<10 f
SPW-3212 Water Oct1992 Ra-228
<1.0
<1 SPW-3057 Water Nov.1992 Ra-226
<0.03
<1 SPW-3294 Water Dec.1992 Gr. alpha
<0.4
<1 Gr. beta
. <0.8
<4 A-34
TIML-BLIND-01 Revision 0,12-29-86 ATTACHMENT B ACCEPTANCE CRITERIA FOR SP1KED" SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa -
One Standard Deviation -
Analysis Level for Single Determination Gamma Emitters 5 to 100 pCi/ liter or kg 5 pCi/ liter
>100 pCi/ liter or kg 5% of known value Strontium-89b 5 to 50 pCi/ liter or kg 5 pCi/ liter
>50 pCi/ liter or kg 10% of known value Strontium-90b 2 to 30 pCi/ liter or kg 3.0 pCi/ liter
>30 pCi/ liter or kg 10% of.known value Potassium
>0.1 g/ liter or kg 5% of known value i
Gross alpha
<20 pCi/ liter 5 pCi/ liter
>20 pCi/ liter 25% of known value Gross beta
<100 pCi/ liter 5 pCi/ liter
>100 pCi/ liter 5% of known value Tritium
<4,000 pCi/ liter 1s = (pCi/ liter) =
169.85 x (known).0933
>4,000 pCi/ liter 10% of known value Radium-226, -228
<0.1 pCi/ liter 15% of known value l
Plutonium 0.1 pCi/ liter, gram, or sample 10% of known value Iodine-131,
<55 pCl/ liter 6 pCi/ liter Iodine-129b
>55 pCi/ liter 10% of known value j
Uranium-238,
<35 pCI/ liter -
6 pCi/ liter
~
Nickel-64,
>35 pCi/ liter.
15% of known value j
b Technetium-99b Iron-55b 50 to 100 pCi/ liter 10 pCi/ liter
>100 pCi/ liter 10%~of known value j
a From EPA publication,. Environmental RadioactMty Laboratory Intercomparison Studies Prognm, Fiscal Year,1981-1982, EPA-600/4-81-004.
1 bTIML limit.
-l l
A-35 J
1 i
ADDENDUM TO APPENDIX A The following is an explanation of the reasons why certain samples were outside the control limit specified by the Environmental Protection Agency for the Interlaboratory Comparions Program starting January 1988.
EPA TIML Control Result Limit I.ab Code Analysis (pCi/L)a (pCI/L)a Explanation STF-524 K
1010.7il58.5b 1123.5-1336.5b Error in transference of data. Correct data was 1105i33 mg/kg. Results in the past have been within the limits and TIML will monitor the situation in the future.
STW-532 I-131 9.0i2.0 6.2-8.8 Sample recounted after 12 days. The average result was 8.811.7 pCi/L (within EPA control limits).
The sample was recounted in order to check the decay. Results in the past have been within the limits and TIML will continue to monitor the situation in the future.
STW-534 Co40 63.3i1 3 41 3-58.7 High level of Co-60 was due to contamination of beaker. Beaker was discarded upon discovery of contamination and sample was recounted.
Recount results were 53.2i3.6 and 50.9i2.4 pCi/L STM-554 Sr-90 51.0i2.0 54.8 65.2 The cause of low result was due to very high fat content of milk.
It should be noted that 63% of all participants failed this test. Also, the average for all participants was 54.0 pCl/L before the Grubb and 55.8 pC1/L after the Gnibb.
STW-560 Pu-239 5.811.1 3.54.9 The cause of high results is not known though it is suspr.<ted that the standard was not properly calibrated by supplier and is under investigation. New Pu-236 standard was obtained and will be used for the next test STW-568 Ra-228 2.6it.0 2.7-4.5 The cause of low results is not known. Next EPA cross check results were within the control imits. No further action is planned.
A-36 i
ADDENDUM TO APPENDIX A (c:ntinued)
EPA TIML Control Result Limit 12bCode Analysis (pO/Da (paft)a Explanation STM-570 Sr-89 26.0t10.0 303-47.7 The cause of low results was falsely high recovery due to suspected Sr-90 45.7i4.2 49.8 60.2 incomplete calcium removal. Since EPA sample was used up, internal spike wn prepared and analyzed. The results were within control limits (See table A-3, sample QC-MI-24). No.
further action is planned.
STW-589 Sr-90 173i1.2 17.4-22.6 Sample was reanalyzed in triplicate; results of reanalyses were 18.8il.5 pCi/L No further action is planned.
STM-599 K
1300.0i69.2C 1414.7-16853c Sample vias reanalyzed in tdplicate.
Results of reanalyses were 1421.71953 mg/L The cause of low results was using wrong volume.
STW-601 Gr. alpha 11.0i2.0 11.6-32.4 Sample was reanalyzed in triplicate.
Results of reanalyses were 13.411.0 pO/L STAF-626 Cr. alpha 38.711.2 14.6-35.4 The cause of high results is the differenc4n geometery between standard used in the TIML lab and EPA filter.
STW-632 Ba-133 74.0 6.9 51.6-72.4 Sample was reanalyzed. Results of the reanalyses were 63.816.9 pCi/L within EPA limit.
STM-641 I-131 130.7i16.8 88.9-127.1 The cause of high result is unknown.
In-house spike sample was prepared with activity of I-131683 6.8 pCi/L Result of the analysis was 69.19.7 pO/L STM-661 Sr-89 25317.6 293-46.7 The cause of low result is unknown.
Data was checked for errors. The In-house spike sample was prepared with activity of Sr-89 41.0i10.0 pCi/L Result of the analysis was 37.2i3.6 pCi/L
~.
A-37
ADDENDUM TO APPENDIX A (continued)
EPA TIML Control
.i Result Limit l
LabCode Analysis (pC1/Da -
(pc/pa Explanation STM-673 K
1540.01103.9c 1597.3 1902.7 Activity was calculated -using the wrong volume (3.5 L), instead of 3.25 l
L. Correction for volume resulted in a.
-i value of 1660.0i110.1 mg/L; within, EPA control limits.
Reported in pCi/L unless otherwise noted.
a c Concentrations are reported in mg/L.
-i l
t i
P
+
8 I
?
I l
F b
-t
~.
A-38
.l
~
s
r 1
e.
3-e y
' 4 APPENDIX B DATA REPORTING CONVENTIONS t
9 t
f r
F t
0 l
t a
B-1
Data Reportine Conventions 1.0. All activities except gross alpha and gross beta are decay corrected to collection time or the end of the collection period.
2.0. Single Measurements Each single measurement is reported as follows:
xis where x = value of the measurement; s = 20 counting uncertainty (corresponding to the 95% confidence level).
In cases where the activity is found to be below the lower limit of detection L it is reported as
<L where L = the lower limit of detection based on 4.660 uncertainty for a background sample.
3.0. Duplicate analyses 3.1 Individual results:
x1i s1 x1 is2 Reported result-xis F
where x = (1/2) (x1 ix2) j 2
2 s = (1/2) si + s2 i
3.2. Individual results:
<Li
<L2 Reported result:
<L where L = lower of L and L2 1
3.3. Individual results:
xis
<L Reported result xis if x 2 L;
<L otherwise B-2
4.0. Computation of Averages and Standard Deviations 4.1 Averages and standard deviations listed in the tables are computed from all of the individual measurements over the period averaged; for example, an annual standard deviation would not be the average of quarterly standard deviations. The average E and standard deviation (s) of a set of n numbers xi, x2 Xn are defined as follows:
l 1
i R=-Ex I(x-x)2 s=
n-1 4.2 Values below the highest lower limit of detection are not included in the average.
I 4.3 If all of the values in the averaging group are less than the highest LLD, the highest LLD is reported.
4.4 If all but one of the values are less than the highest LLD, the single value x and associated two sigma error is reported.
4.5 In rounding off, the following rules are followed:
4.5.1. If the figure following those to be retained is less than 5, fhe figure is dropped, and the retained figures are kept unchanged. As an example,11.443 is rounded off to 11.44.
4.5.2. If the figure following those to be retained is greater than 5, the figure is dropped and the last retained figure is raised by 1. As an example,11.446 is rounded off to 11.45.
f 4.5.3. If the figure following those to be retained is 5, and if there are no figures other than zeros beyond. the.five, the figure five is dropped, and the last-place figure retained is increased by one if it is an odd number or it is kept unchanged if an even number. As -
an example,.11.435 is rounded off to 11.44, while -11.425 is rounded off to 11.42.
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o APPENDIX C 6
Maximum Permissible Concentrations of Radioactivity in Air and Water Above Background in Unrestricted Areas T
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Table C-1. Maximum permissible concentrations of radioactivity in air and water above natural background in unrestricted areas.a Air Water 3
Gross alpha 3.pCi/m Strontium-89 3,003 pCi/l Gross beta 100 pCi/m3 Strontium-90 300 pCi/l Iodine-131b 0.14 pCi/m3 Cesium-137 20,000pCi/l -
Barium-140 20,000 pCi/l Iodine-131 300 pCi/l Potassium-40e 3,000 pCi/l Cross alpha 30 pCi/l Cross beta 100 pCi/l 6
3 x 10 pCi/l Tritium a Taken from Code of Federal Regulations Title 10, Part 20, Table II and appropriate footnotes. Concentrations may be averaged over a period not greater than one year.
b rom 10 CFR 20 but adjusted by a factor of 700 to reduce the dose resulting from the air-F grass-cow-milk-child pathway.
c A natural radionuclide.
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t APPENDIX D t
Special Ground I
and Well Water Samples i
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1.0 INTRODUCTION
This appendix to the Radiation Environmental Monitoring Program Annual Report to the United States Regulatory Commission summarizes and interprets results of the spedal well and surface water samples taken at the Prairie Island Nuclear Generating Plant, Red Wing, Mmnesota, during the period January - December,1992. This supplement special sampling program was established in December of 1989 when tritium was detected in a nearby.
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residence well sample.
Tabulations of the special sampling program individual analyses made during the year are included in this appendix. A summary table of tritium analyses is also included in this appendix.
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2.0 SUMM ARY This special sampling program was established following the detection of tritium in a residence well water sample nearby the PINGP, during 1989. This program is described and the results for 1992 are summanzed and discussed.
Program findings show a low level of tritium in a nearby residence well, some ground r
water seepage samples and a few other well water samples that are just above the lower limit of detection (LLD). None of these samples qualified as non-routine sample results.
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I 3.0 Special Tritium Sampling Procram 3.1 Procram Desien and Data Interpretation The purpose of this sampling program is to assess the impact of the tntium leaching into the environment (ground water system) from the PINGP discharge canal. For this purpose, special water samples are collected and analyzed for radioactive content.
3.2 Procram Description The sampling and analysis schedule for the special water sampling program is summarized in Table 4.1 and briefly reviewed below. Table 4.2 defines the additional sample locations and codes for the special water sampling program.
Special well and ground water is collected quarterly at eight locations: one sample from the PINCP Biology Station (P-30); one from the nearest residence deep well (P-24d, Suter residence); two ground water seepage from near Birch Lake (P-31 and P-32);
well water from the Prairie Island Training Center (P-26); and three other nearby residences (P-27, Nauer residence; P-28, Perkins residence; P-29, Childs residence). The Rohl farm well (part of the quarterly REMP sampling) is used as a control location for these special samples.
33 Program Execution The special water sampling was executed as described in the preceeding section with the following exceptions:
1.
No water sample was available during the second and fourth quarters from the Birch Iake locations (P-31 and P-32) due to high and low water levels in the lake.
The ground seepage sample locations were under water.
3.4 Procram Modifications The special water sampling program was modified during the year to a quarterly -
schedule to correspond to the regular REMP sampling for tritium in water.
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I 3.5 Results and Discussion Results obtained continue to show very low levels of tritium in some well water and ground water samples. Except for the Suter residence deep well, most of counting results for the samples are at or near the analysis laboratory's lower limit of detection (LLD). Sample results at the higher levels (Suter's and Birch Lake) are probable due to previous seepage from the PINGP discharge canal water into the ground water. This is i
thought to occur due to the elevation difference between the Vermillion River and the discharge canal. The Suter residence is between the discharge canal and Birch Lake, which is attached to the Vermillion River. The PINGP discharge canal discharge piping was lengthened during 1991, so that liquid discharges from the plant are i
released near the end of the discharge canal It is expected that this modifica' tion will eventually eliminate the radioactive effluent flow into the ground water. Overall 1992 sample results show a slight downward trend as compared to 1991 levels.
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Table D-4.1 Sample collection and analysis program for special well and surface water samples, Prairie Island Nuclear Generating Plant,1992.
Medium No.
Location codes Collection type Analysis typec a
b and type and frequency Well water 7
P-24d, P-25 (C),
G/Q H-3 quarterly P-26, P-27, P-28, P-29, P-30 Ground water 2
P-31, P-32 G/Q H-3 a Location codes are defined in table D-4.2. Control Station are indicated by (C). All other stations are indicators.
j b Collection type is codes as follows: C/ = continuous; G/ = grab. Collection frequency is coded as follows: W = weekly; M = monthly; Q = quarterly; SA = semi-annually; A = annually; X = no specified frequency or one time.
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c Analysis type is coded as follows: GB = gross beta; GS = gamma spectroscopy; H-3 =
7 tritium; l-131 = iodine 131.
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n Table D-4.2. Sampling locations for special well and surface water samples, Prairie Island Nuclear Generating Plant,1992.
b Distance and a
Collection site Type of sample Code type direction from site stack P-24d Suter residence, deep well WW 0.6 mi. @ 158*/SSE P-25 C
Rohl farm WW 12.9 mi @ 352*/N P-26 PfIC WW 0.4 mi. @ 258*/WSW P-27 Nauer residence WW 0.9 mi. @ 154*/SSE P-28 Perkins residence WW 1.0 mi. @ 152*/SSE P-29 Childs residence WW 1.2 mi. @ 149*/SSE P-30 FINGP Biology Station WW 0.2 mi. @ 32"/NNE P-31 Birch iake Seepage #1 GW 0.8 mi. @ 169*/SSE P-32 Birch Lake Seepage #2 CW 0.7 mi. @ 179*/S a "C" denotes control location. All other locations are indicators.
b Sample codes: WW = Well water; GW = Ground Water.
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Tabl2 D-4.3 Radiological Environment:1 Monitoring Program Summary: Speci:1 well and surface water samples.
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Name of Facility Prairie Island Nuclear Generating Plant Docket No. 50-282.50-306 Location of Facility Goodhue. Minnesota Reporting Period Ianuary-December.1992 Sample type Type and Indicator Locations with highest Control Number of (units) number of locations annual mean locations non-routine a
11pb means (F)c mean (F)C resultse analyses range Locationd Range range Well water H-3 36 160 542 (12/29)
P-24d, Suter's 835 (6/6) 170 0
(pC1/L)
(160-930) deep well, (710-930) 0.6 mi. @ 158'/SSE Ground water 11-3 6
160 600 (3/3)
P-31, Birch 12ke 600 (3/3) 170 0
(pCi/L)
(530-680)
Scepage #1 (530-680) 0.8 mi. @ 169'/SSE-O do a H-3 = Tritium b LLD = Nominal lower limit of detection based on 4.66 sigma error for background sample.
Value shown is lowest for period.
c Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).
d Locations are specified (1) by name and code (Table 2) and (2) distance, direction and sector relative to reactor site.
e Non-routine results are those which exceed ten times the control station value.
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A Table D - 4.4 Radiological Environmental Monitoring Program, Complete Data Table,1992.
SAMPLE DATES Jan-92 Feb-92 Mar-92 May-92 Aug-92
,l Nov-92 SAMPLE LOCATIONS pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L Suter residence 790 830 930 840 710 910 Rohl farm
<180 170
<180
<170
<180
<180 PflC
<180 160 180
<170
<180 200 Nauer residence
<180
<170
<180
<180 Perkins residence 360
<170
<180 180 Child's residence
<180
<170
<180
<180 Biology Station
<180 400 200
<170
<180
<180 Birch Lake Seep 1 590 530 680 Dinh Lake Seep 2 340 590 470 O
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