View source for NG-02-0364, License DPR-49, 2001 Annual Radiological Environmental Report

{{Adams
| number = ML021230468
| issue date = 04/26/2002
| title = License DPR-49, 2001 Annual Radiological Environmental Report
| author name = Anderson R
| author affiliation = Nuclear Management Co, LLC
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000331
| license number = DPR-049
| contact person = 
| case reference number = NG-02-0364
| document type = Annual Report, Environmental Monitoring Report, Letter type:NG
| page count = 106
}}

=Text=
{{#Wiki_filter:Duane Arnold Energy Center 3313 DAEC Road Palo, IA52324-9646 Committed to Nuclear Excellence 5 Operatedby NuclearManagement Company, LLC April 26, 2002 NG-02-0364 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station O-P1-17 Washington, DC 20555-0001

==Subject:==
Duane Arnold Energy Center Docket No.:         50-331 Operating License No.:          DPR-49 2001 Annual Radiological Environmental Report Please find attached one (1) copy of the 2001 Annual Radiological Environmental Report for the Duane Arnold Energy Center.                               This report is transmitted in accordance with the DAEC Offsite Dose Assessment Manual (section 6.4.2)                 and Technical Specifications (section 5.6.2) reporting requirements.
Sincerely, Robert Anderson Plant Manager            -   Nuclear RA/SF/hc Attachment cc:     Mr. James E. Dyer               (w/attachments)
Regional Administrator Region III U. S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, Illinois             60532-4351 NRC Resident Inspector - DAEC (w/attachments)
D. Hood (NRC-NRR) (w/attachments)
E. Protsch - (w/o attachments)
R. Brown - (w/o attachments)
G. VanMiddlesworth(w/o attachments)
Wendell Aldrich (OSRC)             (w/attachments)
CTS Project (w/attachments)                                                                A0 DOCU (w/attachments)

    -
* Environmental, Inc.
Midwest Laboratory an AJiegheny Technologies Co.
700 Landwehr Road
* Northbrook, IL 60062-2310 ph. (847) 564-0700
* fax (847) 564-4517 IES UTILITIES, INC.
CEDAR RAPIDS, IOWA DUANE ARNOLD ENERGY CENTER CEDAR RAPIDS, IOWA DOCKET NO. 50-331 ANNUAL REPORT TO THE UNITED STATES NUCLEAR REGULATORY COMMISSION Radiation Environmental Monitoring Program January 1 to December 31, 2001 Prepared and submitted by ENVIRONMENTAL, Inc.
Midwest Laboratory Project No. 8001 Approved :
Oronla Gr~obMS nager L bOrat

PREFACE Staff members of the Environmental, Inc., Midwest Laboratory were responsible for the acquisition of data presented in this report, with the exception of Appendices D and E, which were completed by DAEC personnel. All environmental samples, with the exception of aquatic, were collected by personnel of DAEC. Aquatic samples were collected by the University of Iowa Hygienic Laboratory.
The report was prepared by Environmental, Inc., Midwest Laboratory, with the exception of Appendices D and E, which were prepared by DAEC personnel.
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TABLE OF CONTENTS No.                                                                                                                                     Pae PREFACE ...................................................................................................................... ii List of Tables ........................................................................................................            v List of Figures ......................................................................................................           vi 1.0    INTRODUCTJON .....................................................................................................                 1 2.0    SUM MARY ..........................................................................................................                2 3.0    ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ..........................                                                           3 3.1      Program Design and Data Interpretation .....................................................                              3 3.2      Program Description ...................................................................................                   4 3.3      Program Execution .....................................................................................                   5 3.4      Laboratory Procedures ................................................................................                    6 3.5      Program Modifications .................................................................................                   6 4.0    RESULTS AND DISCUSSION ................................................................................                           7 4.1      Atmospheric Nuclear Detonations and Nuclear Accidents .......................... 7 4.2      Program Findings .......................................................................................                 7 5.0    TABLES AND FIGURES .......................................................................................                      10

==6.0    REFERENCES==
CITED .........................................................................................                      27 APPENDICES A     Interlaboratory Comparison Program Results .....................................................                               A-1 B     Data Reporting Conventions ................................................................................                    B-1 C     Effluent Concentration Limits for Radioactivity in Air and Water Above Background in Unrestricted Areas ..........................................................                           C-1 D     Sum m ary of the Land Use Census ....................................................................                          D-1 E     Annual Radiation Dose Assessment ........................................................................                      E-1 iii

TABLE OF CONTENTS (continued)
PART II                                                                                                                    Paae Data Tabulations and Analyses .................................................................................... i iv

LIST OF TABLES No.                                                                                                                                 Page 5.1        Characteristic Properties of Isotopes Quantified in Gamma-spectroscopic Analyses .................................................................................................... 11 5.2        Sample Collection and Analysis Program ..............................................................                    12 5.3        Sampling Locations, DAEC ..................................................................................              15 5.4        Type and Frequency of Collections .......................................................................                17 5.5        Sample Codes Used in Table 5.4 ..........................................................................                 18 5.6        Missed Collections and Analyses ...........................................................................               19 5.7       Radiological Environmental Monitoring Program Summary ...................................                                20 In addition, the following tables are in the Appendices:
Appendix A A-1        Interiaboratory Comparison Program Results .....................................................                        Al-1 A-2         Interlaboratory    Comparison                  Program              Results,            Thermoluminescent Dosimeters (TLDs) ......................................................................................      A2-1 A-3         In-house Spiked Samples .........................................................................................      A3-1 A-4         In-house "Blank" Samples ........................................................................................      A4-1 A-5         In-house "Duplicate" Samples ..............................................................................            A5-1 A-6         Department of Energy MAPEP comparison results .................................................                        A6-1 A-7         Environmental     Measurements                  Laboratory             Quality         (EML)          Assessment Program comparison results .......................................................................            A7-1 Attachment A: Acceptance criteria for spiked samples ............................................                      A-2 Appendix C C-1        Effluent Concentration Limits for Radioactivity in Air and Water Above Background in Unrestricted Areas ...............................................................             C-2 v

LIST OF FIGURES No.                                                                                                                        Pap' 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center .....................................................................                25 5.2 Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles .................................................................................................... 26 vi

==1.0 INTRODUCTION==

This report summarizes and interprets results of the Radiological Environmental Program conducted by Environmental, Inc., Midwest Laboratory at the Duane Arnold Monitoring Energy Center, Palo, Iowa, during the period January - December 2001. This program monitors of radioactivity in the airterrestrial, and aquatic environments in order to assess the       the level impact of the Plant on its surroundings.
Tabulation of the individual analysis made during the year are included in Part II of this report.
Duane Arnold Energy Center (DAEC) is located in Linn County, Iowa on the Cedar and is operated by Nuclear Management Corporation. The Duane Arnold Energy                      River Center is a boiling water reactor. Initial criticality was attained on March 23, 1974. The reactor reached 100% power on August 12, 1974. Commercial operation began on February 1, 1975.
The Licensed power level was increased to 1912 MWth in November of 2001.
I

2.0 

==SUMMARY==

The Radiological Environmental Monitoring Program required by the U.S. Nuclear Regulatory Commission (NRC) Technical Specifications for the Duane Arnold Energy Center is described. Results for 2001 are summarized and discussed.
Program findings show background levels of radioactivity in the environmental samples collected in the vicinity of the Duane Arnold Energy Center. No effect on the environment due to the operation of the Duane Arnold Energy Center is indicated.

3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3.1 Program Desigqn and Data Interpretation The purpose of the Radiological Environmental Monitoring Program at the Duane Arnold Energy Center (DAEC) is to assess the impact of the plant on its environment. For this purpose, samples are collected from the air, terrestrial, and 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:
(1)      Natural background radiation arising from cosmic rays and primordial radionuclides; (2)      Fallout from atmospheric nuclear detonations; (3)      Releases from nuclear power plants; and (4)      Industrial and medical radioactive waste.
In interpreting the data, effects due to the DAEC operation must be distinguished from those due to other sources.
A major interpretive aid in assessment of these effects is the design of the monitoring program at the DAEC which is based on the indicator-control concept. Most types of samples are collected both at indicator locations (nearby, downwind, or downstream) and at control locations (distant, upwind, or upstream). A station effect would be indicated if the radiation level at an indicator 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 radiation levels arising from other sources.
An additional interpretive technique involves analyses for specific radionuclides present in the environmental samples collected from the DAEC site. The DAEC's monitoring program includes analyses for strontium-90 and iodine-131, which are fission products, and tritium, which is produced by cosmic rays, atmospheric nuclear detonations, and also by nuclear power plants.
Most samples are also analyzed for gamma-emitting isotopes with results for the following groups quantified: zirconium-95, cesium-137, and cerium-144. These three gamma-emitting isotopes were selected as radiological impact indicators because of the different characteristic proportions in which they appear in the fission product mix produced by a nuclear reactor and that produced by a nuclear detonation. Each of the three isotopes is produced in roughly equivalent amounts by a reactor: each constitutes about 10% of the total activity of fission products ten (10) days after reactor shutdown. On the other hand, ten (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). 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 next group, manganese-54, cobalt-58 and-60, and zinc-65, are activation products and arise from activation of corrosion products. They are typical components of nuclear power plant effluents, but are not produced in significant quantities by nuclear detonations. Nuclides of the final group, beryllium-7, which is of cosmogenic origin, and potassium-40, a naturally-occurring isotope, were chosen as calibration monitors and should not be considered radiological impact indicators.
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3.1       Program Desiqn and Data Interpretation (continued)
Characteristic prooerties of isotopes quantified in gamma-spectroscopic analysis are presented in Table 5.1. Other means of distinguishing sources of environmental radiation can be employed in interpreting the data. Current radiation levels can be compared with previous levels, including those measured before the Plant became operational. Results of the DAEC'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  Proqram Description The sampling and analysis schedule for the environmental radiological monitoring program at the DAEC is summarized in Table 5.2 and is briefly reviewed below. Table 5.3 defines the sampling location codes used in Table 5.2 and specifies for each location its type (indicator or control) and its distance, direction, and sector relative to the reactor site. The types of samples collected at each location and the frequency of collections are presented in Table 5.4 using codes defined in Table 5.5.
To monitor the air environment, airborne particulates are collected on membrane filters by continuous pumping at twelve locations. Also, airborne iodine is collected by continuous pumping through charcoal filters at six of these locations. Nine of the twelve locations are indicators and three are controls (D-1, D-2, and D-13). Filters are changed and counted weekly. Particulate filters are analyzed for gross beta activity. If gross beta activity exceeds ten times the yearly mean of the control samples, gamma isotopic analysis is performed. Quarterly composites of airborne particulates from each location are analyzed for gamma emitting isotopes.
Charcoal filters are analyzed weekly for iodine-131 on all samples.
Ambient gamma radiation is monitored at twelve air sampling locations. In addition, gamma radiation is monitored at thirty-three special locations: seventeen in a circle within a 0.5 mi. radius of the DAEC stack; six in 22.5' sectors within 1 mi. of the DAEC stack; and ten in 22.50 sectors between 1 and 3 miles of the DAEC stack. Two TLDs are placed at each location and are exchanged and analyzed quarterly.
Precipitation is collected monthly from one location and analyzed for gamma-emitting isotopes.
Quarterly composites are analyzed for tritium.
Milk samples are collected monthly from five locations during the non-grazing season, October through April, and biweekly during the grazing season, May 1 through September 30. One location is a control (D-105) and the rest are indicators. All samples are analyzed for iodine-131 and gamma-emitting isotopes.
For additional monitoring of the terrestrial environment, grain, hay and broad leaf vegetation samples are collected annually, as available, from nine locations: one control (D-105) and eight indicators (D-16, D-57, D-58, D-63, D-72, D-93, D-94, and D-106). Grain, hay and broad leaf (green leafy) vegetation samples are analyzed for gamma-emitting isotopes and at least one broad leaf vegetation is analyzed for iodine-131. If cattle are slaughtered for home use, a meat sample is collected annually, during or immediately following a grazing period from animals grazing on-site. The sample is analyzed for gamma-emitting isotopes. Also, potable ground water is collected quarterly from a treated municipal water system (D-53), the inlet to the municipal water treatment system (D-54) and four additional ground water locations (D-55, D-57, D-58, and D-72). The samples are analyzed for gross beta and tritium. If gross beta activity exceeds ten times the yearly mean of the control samples, gamma isotopic, strontium-89 and strontium-90 analyses are performed.
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Program Description (continued)
Soil samples are collected once per year at two indicator locations (D-1 5 and D-1 6). The samples are analyzed for strontium-90 and gamma-emitting isotopes.
Surface water is collected monthly from five river, pond and sewage effluent locations, one control (D-49) and four indicator (D-50, D-51, D-99, and D-107). All monthly samples are analyzed for gamma-emitting isotopes. Tritium analyses are performed on quarterly composites from each location. In addition, all samples from Location D-107 (plant sewage discharge) are analyzed for potassium-40 by flame photometry.
The aquatic environment is also monitored by upstream and downstream (D-49 and D-61) semiannual collection~s of fish. River bottom sediment is also collected semiannually at the plant's intake and discharge(t--50 and D-51) and downstream of the sewage plant (D-107). The samples are analyzed for gamma-emitting isotopes.
3.3 Program Execution The program was executed as described in the preceding section with the following exceptions:
(1)       Milk:
No sample was available from location D-93 for the December, 2001 collection. The goats have been sold and the location dropped from the program.
No milk was available from location D-101, January through April and December of 2001.
Goats were dry.
Milk was not available from location D-105 collected July 10, September 5, and September 18, 2001. The location has been dropped from the program.
(2)       Air particulates / Air Iodine:
No AP/AI sample was available at location D-15 for the week ending 03-01-01. Run-time of only 40.5 hours due to power failure. The sample was not analyzed.
Air iodine samples were not available for the week ending 10-18-2001"*. The samples were missed by the laboratory.
The air iodine sample for location D-7 was missing in shipment for the week ending 12 27-01.
           **  Collection and analysis of at least five air Iodine samples per week is required by the ODAM (Table 6.3-1). The requirement for this week was not met (2)      Thermoluminescent Dosimetry:
Data was not available for the second quarter, 2001 from locations D-22, D-41, D-42 and D-83. Both emergency and regular TLDs were missing in the field.
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3.4  Laboratory Procedures The iodine-131 analyses in milk were made using a sensitive radiochemical procedure involving separation of the iodine using an ion-exchange method, solvent extraction and subsequent beta counting.
Gamma-spectroscopic analyses were performed with HPGe detectors. Levels of iodine-131 in vegetation were determined by gamma spectroscopy. Concentrations of airborne iodine-131 in charcoal samples were also determined by gamma spectroscopy.
Tritium was determined by liquid scintillation.
Analytical Procedures used by Environmental, Inc. are on file and are available for inspection.
Procedures are based6n those Prescribed by the Health and Safety Laboratory of the U.S. Dep't of Energy, Edition 28, 1997, U.S. Environmental Protection Agency for Measurement of Radioactivity in Drinking Water, 1980, and the U.S. Environmental Protection Agency, EERF, Radiochemical Procedures Manual, 1984.
Environmental, Inc., Midwest Laboratory has a comprehensive quality control/quality assurance program designed to assure the reliability of data obtained. Details of the QA Program are presented elsewhere (Environmental, Inc., Midwest Laboratory, 2000 ). The QA Program includes participation in Interlaboratory Comparison (crosscheck) Programs. Results obtained in the crosscheck programs are presented in Appendix A.
3.5 Program Modifications The milk location, D-93 was dropped from the program in December, 2001. The dairy goats were sold.
The control location for milk, D-105 was dropped from the program in September, 2001. A replacement dairy (D-108) has been added.
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4.0 RESULTS AND DISCUSSION All collections and analyses were made as scheduled, except for the listing in Table 5.6.
Results are summarized in Table 5.7 as recommended by the Nuclear Regulatory Commission. For each type of analysis and sample medium, the table lists the mean and range of all indicator and control locations, as well as that location with the highest mean and range.
The tabulated results of all measurements are not included in this section, although references to these results will be made in the discussion. A complete tabulation of results for 2000 is contained in Part II of the Annual Report on the Radiological Environmental Monitoring Program for the Duane Arnold Energy Center.
4.1      Atmospheric Nuclear Detonations and Nuclear Accidents There were no reported atmospheric nuclear tests in 2001.
4.2      Program Findings Results obtained show background levels of radioactivity in the environmental samples collected in 2001.
Airborne Particulates The average annual gross beta concentrations in airborne particulates were identical at both indicator and control locations (0.026 pCi/m 3 ) and similar to levels observed from 1985 through 2000. The results are tabulated below. The data for 1986 does not include the results from May 19 to June 9, 1986, which were influenced by the accident at Chernobyl.
Year        Indicators      Controls           Year          Indicators    Controls Concentration ( pCi/m 3 )                       Concentration ( pCi/m 3 )
1985          0.024           0.024             1994           0.023         0.024 1986          0.024           0.024             1995           0.025         0.024 1987          0.024           0.026             1996           0.024         0.023 1988          0.026           0.028             1997           0.023         0.023 1989          0.026           0.029             1998           0.024         0.024 1990          0.022           0.024             1999           0.026         0.027 1991          0.023           0.022            2000            0.026         0.027 1992          0.022           0.023            2001            0.026         0.026 1993          0.022           0.023 Average annual gross beta concentrations in airborne particulates.
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 AI-Salih, 1955), was detected in all samples.
All other gamma-emitting isotopes were below their respective LLD limits. No effect from plant operation is indicated.
7

Airborne Iodine Weekly levels of airborne iodine-131 were below the lower limit of detection (LLD) of 0.07 pCi/m3 in all samples.
Ambient Radiation (TLDs)
At twelve air sampling locations, the TLD readings averaged 15.5 and 14.2 mR/quarter for indicator and control locations, respectively. At locations within a half mile, one mile and three mile radius of the stack, measurements averaged 17.1 mR/quarter, 17.6 mR/quarter and 14.9 mR/quarter, respectively. The average for all locations was 16.2 mR/quarter. This is lower than the estimated average natural background radiation for Middle America, 19.5 mR/quarter, which is based on data on Pages 71 and 108 of the report, "Natural Background Radiation in the United States" (National Council on Radiation Protection and Measurements, 1975). The terrestrial absorbed dose (uncorrected for structural and body shielding)              ranges from 8.8 to 18.8 mrad/quarter and averages 11.5 mrad/quarter for Middle America.                 Cosmic radiation and cosmogenic radionuclides contribute 8.0 mrad/quarter for a total average of 19.5 mrad/quarter.
No plant effect is indicated.
Precipitation In precipitation, the tritium concentration was below the LLD of 330 pCi/L in all samples. No gamma-emitting isotopes were detected. No plant effect is indicated.
Milk Iodine-1 31 results were below the detection limit of 1.0 pCi/L in all samples.
No gamma-emitting isotopes, except naturally occurring potassium-40, were detected in any milk samples. This is consistent with the finding of the National Center for Radiological Health that most radiocontaminants in feed do not find their way into milk due to the selective metabolism of the cow. The common exceptions are radioisotopes of potassium, cesium, strontium, barium, and iodine (National Center for Radiological Health, 1968).
In summary, milk data for 2001 show no radiological effects of plant operation.
Ground Water The annual mean for gross beta activity measured 3.4 pCi/L and was similar to levels observed from 1980 through 2000. The location with the highest mean (6.7 pCi/L) was D-58, a farm 1.0 mile distant from the plant. Tritium was below the LLD of 330 pCi/L in all samples. No effect from plant operation is indicated.
Veqetation Iodine-131 concentrations in broadleaf vegetation were below the LLD level of 0.042 pCi/g wet weight in all samples.
Except for potassium-40, which was observed in all vegetation samples ( broadleaf, grain, and forage ), all other gamma-emitting isotopes were below detection limits in all samples. No effect from plant operation is indicated.
8

Soil Strontium-90 was detected in one sample from location D-15 and measured 0.026 pCi/g dry weight, less than half the activity detected in 1990. Cesium-137 activity averaged 0.17 pCi/g dry weight. Both strontium-90 and cesium-137 activities are similar to or less than levels observed from 1988 through 2000, these levels are generally attributable to deposition of fallout from previous decades.
Naturally-occurring potassium-40 averaged 12.08 pCi/g dry weight. No effect from plant operation is indicated.
Surface Water Concentrations of tritium measured below the LLD level of 330 pCi/L in all samples. All gamma-emitting isotopes were below their respective LLDs.
Potassium-40 was measured at one location, D-107 (sewage effluent). The concentration ranged from 8.7-30.3 pCi/L and averaged 20.0 pCi/L.
No plant effect on surface water is indicated.
Fish All gamma-emitting isotopes, except naturally-occurring potassium-40, in edible portions were below detection limits. The potassium-40 level was similar at both indicator and control locations (3.00 and 2.81 pCi/g wet, respectively). No plant effect on fish is indicated.
River Sediments River sediments were collected in May and September, 2001, and analyzed for gamma emitting isotopes. Co-60 was detected in one sample from location D-107 (sewage effluent) at a concentration of 0.036 pCi/g dry weight. Traces of Cesium-137 were detected at both indicator and control locations, at concentrations of 0.030 and 0.029 pCi/g dry, respectively, similar to concentrations observed from 1988 through 2000. Potassium 40 activity ranged from 5.51-7.99 pCi/g dry weight and averaged 6.89 pCi/g dry weight.
All other gamma-emitting isotopes were below detection limits.
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5.0 TABLES AND FIGURES 10

Table 5.1 Characteristic properties of isotopes quantified in gamma-spectroscopic analyses.
Designation                           Comment                                   Isotope     Half-lifea
: 1. Naturally Occurring A. Cosmogenic                   Produced    by interaction of cosmic      Be-7        53.2 d rays with atmosphere B. Terrestrial                  Primordial                                K-40        1.26 x 10 9 y I1. Fission Productsb                 Nuclear detonations constitute the major environmental source A. Short-lived                                                            1-131       8.04 d Ba-140      12.8 d B. Other than Short-lived                                                 Nb-95       35.15 d Zr-95       65 d Ru-103      39.35 d Ru-106      368.2 d Cs-1 34     2.061 y Cs-137      30.174 y Ce-141      32.5 d Ce-144      284.31 d Ill. Activation Products             Typically found in nuclear power plant    Mn-54       312.5 d effluents                                 Fe-59       45.0 d Co-58       70.78 d Co-60       5.26 y Zn-65       245 d a Half-lives are taken from Appendix E of Environmental Quarterly, 1 January 1978, EML-334 (U. S. Department of Energy, 1978).
b Includes fission-product daughters.
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Table 5.2 Sample collection and analysis program.
Sampling Location Exposure Pathway and/or Sample             Description          Sampling and Collection           Type and Frequency Sample Type      Point                                         Frequency                      of Analysis Airborne          1           Cedar Rapids (C)       Continuous operation of      Analyze for gross beta activity Particulates   2            Marion (C)             sampler with sample          more than 24 hours after filter 3            Hiawatha               collection at least once per change. Perform gamma 5            Palo                  week or as required by dust   isotopic analysis on each sample 6            Center Point           loading                      having gross beta activity greater 7            Shellsburg                                          than ten times the yearly mean 8            Urbana                                              of the control samples.
10          Atkins 11          Toddville                                           Composite weekly samples to 13          Albumett (C)                                        form a quarterly composite (by 15          On-site North                                       location). Analyze quarterly 16          On-site South                                       composite for gamma isotopic.
Airborne Iodine 2             Marion (C)             Continuous operation of      Analyze each cartridge for 5           Palo                   sampler with sample          iodine-131.
7           Shellsburg             collection at least once per 8           Urbana                 week.
11          Toddville 15          On-site North Ambient           1-2 (C)     Air Particulate        Two dosimeters               Read gamma radiation dose Radiation       3, 5-8      Locations              continuously at each         quarterly.
10, 11                             location. Both dosimeters 13 (C)                             are changed at least 15, 16                             quarterly.
18-23,      Within 0.5 mile of 28-32,      Stack 33-42       Within 3.0 miles of Stack 43-48       Within 1.0 mile of 82-86,      Stack 91 Surface Water     49          Lewis Access (C)       Once per month.              Gamma isotopic analyses of 50          Plant Intake (C)                                    each sample (by location).
51          Plant Discharge 99          Pleasant Creek                                      Composite monthly samples to 107         Plant Sewage                                        form quarterly composite (by Dischange                                            location). Analyze quarterly composite for tritium.
(C) denotes control location. All other locations are indicators.
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Table 5.2 Sample collection and analysis program, (continued).
Sampling Location Exposure Pathway and/or Sample             Description          Sampling and Collection           Type and Frequency Sample Type       Point                                        Frequency                     of Analysis Ground          53         Treated Municipal              Grab sample at least  Gross beta and tritium activity Water                      Water                         once per quarter       analysis on quarterly sample.
(potable)                  Inlet to Municipal                                    If gross beta is greater than Water Treatment                                      ten times the yearly mean of System                                               control samples, perform On-slte well                                         gamma isotopic and Sr-89 and Wells off-site and                                   Sr-90 analyses.
57,58      within 4 km of DAEC 72 River           50         Plant Intake (C)              At least once every   Gamma isotopic analysis of each Sediment        51         Plant Discharge               six months.           sample.
107        Sewage Effluent Canal Vegetation      16, 57,    Farms that raise food         Annually at harvest   Gamma isotopic analysis of 58, 72,    crops                         time. One sample of   edible portions.
93,94,                                   each: grain, green leafy, and forage. At 1-131 analysis on broadleaf 105, 108                                 least one sample      vegetation.
(C)                                      should  be broadleaf vegetation.
Fish            49         Cedar River upstream          One sample per 6      Gamma isotopic analysis on of DAEC not                   months (once during   edible portions.
influenced by effluent        January through July (C)                           and once during Downstream of DAEC            August through 61         in influence of effluent      December).
Milkb           105,       Control Farm                  At least once per two During the grazing season:
108 (C)                                  weeks during the      Gamma isotopic and iodine-131 grazing season.       analyses of each sample.
93, 96, Dairy Farms within 10            At least once per     During the non-grazing season:
101        miles of Site                 month during the      Gamma isotopic and iodine-131 non-grazing season. analyses of each sample.
(C) denotes control location. All other locations are indicators.
13

Table 5.2 Sample collection and analysis program. (continued).
Sampling Location Exposure Pathway and/or Sample            Description         Sampling and Collection              Type and Frequency Sample Type       Point                                      Frequency                        of Analysis Precipitation                On-site                   Monthly                   Gamma isotopic on all samples.
Tritium on quarterly composites.
Meatc                        Ornsite        -          Annually                  Gamma Isotopic Soil              15,16      On-site                   Annually                  Gamma Isotopic and Sr-90.
a Gamma isotopic analysis and analysis for gamma-emitting nuclides refer to high resolution gamma ray spectrum analysis. Any radionuclide detected at a concentration greater than the lower limit of detection (LLD) should be reported quantitatively; conversely, any radionuclide concentration less than the LLD should not be reported.
b The grazing season is considered to be May 1 through September 30.
c Meat was not collected in 2001; no animals slaughtered for home use.
14

Table 5.3 Sampling locations, Duane Arnold Energy Center.
Sampling Location Code              Type        Sampling  Location Description              Distance and Direction Point                                          from Site Stack D-1                 C             1     Cedar Rapids                       11mi@135' SE D-2                 C             2     Marion                             11mi@125' ESE D-3                               3     Hiawatha                             7 mi @ 130' SE D-5                               5     Palo                                3 mi @ 2000 SSW D-6                          __   6     Center Point                        7mi@0&deg;         N D-7                               7     Shellsburg                          6 mi @ 2550 W D-8                               8     Urbana                             10mi @345* NW D-10                             10     Atkins                               9mi@210* SSW D-11                             11     Toddville                           4 mi @ 900 E D-13                C            13     Albumett                            9 mi @ 70* ENE D-1 5                            15     On-site, Northwest                0.5 mi @ 3050 NW D-16                             16     On-site, South                    0.5 mi @ 1900 SSE D-18                             18     On-site, NNE                      0.5 mi NNE D-1 9                            19     On-site, NE                       0.5 mi NE D-20                             20     On-site, ENE                      0.5 mi ENE D-21                             21     On-site, ENE                      0.5 mi ENE D-22                             22     On-site, E                        0.5 mi E D-23                             23     On-site, ESE                      0.5 mi ESE D-28                             28     On-site, WSW                      0.5 mi WSW D-29                             29     On-site, W                        0.5 mi W D-30                             30     On-site, WNW                      0.5 mi WNW D-31                             31     On-site, NW                       0.5 mi NW D-32                             32     On-site, NNW                      0.5 mi NNW D-33                             33     3 miles N                         3.0 mi N D-34                             34     3 miles NNE                       3.0 mi NNE D-35                             35     3 miles NE                        3.0 mi NE D-36                             36     3 miles ENE                       3.0 mi ENE D-37                             37     3 miles E                         3.0 mi E D-38                             38     3 miles ESE                       3.0 m! ESE D-39                             39     3 miles SE                        3.0 mi SE D-40                             40     3 miles SSE                       3.0 mi SSE D-41                             41     3 miles S                         3.0 mi S D-42                             42     3 miles SSE                       3.0 mi SSE D-43                             43     1 mile SSWV                        1.0 mi SSW D-44                             44     1 mile WSW                         1.0 mi WSW D-45                             45     I mile W                           1.0 mi W D-46                             46     1 mile WNW                         1.0 mi WNW D-47                             47     1 mile WNW                         1.0 mi WNW 15

Table 5.3 Sampling locations, Duane Arnold Energy Center (continued).
Sampling Location Code                  Type        Sampling      Location Description                    Distance and Direction Point                                                   from Site Stack D-48                                  48        1 mile NW                                1.0 mi NW D-49                    C             49        Lewis Access, upstream of DAEC           4.0 mi NNW D-50                    C             50        Plant Intake D-51                                  51        Plant Discharge D-53                                  53        Treated Municipal Water D-54                                  54        Inlet, Municipal Water Treatment System D-55                                  55        On-site Well D-57                                  57        Farm (Off-site Well)                    1.0 mi WSW D-58                                  58        Farm (Off-site Well)                    0.5 mi WSW-SW D-61                                  61        0.5 mi downstream of plant discharge D-72                                  72        Farm                                    2.0 mi SSW D-82                                  82        On-site, SE                             0.5 mi SE D-83                                  83        On-site, SSE                            0.5 mi SSE D-84                                  84        On-site, S                              0.5 mi S D-85                                  85        On-site, SSW                            0.5 mi SSW D-86                                  86        On-site, SW                             0.5 mi SW D-91                                  91        On-site, N                              0.5 mi N D-93                                  93        Farm                                    2.8 mi NNE D-94                                  94        Farm                                    2.7 mi N D-96                                  96        Farm                                    8.0 mi SSW D-99                                  99        Pleasant Creek Lake                     2.5 mi WNW D-101                                101        Farm                                    4.0 mi E
                        -. 5C        105        Farm                                    21.3 mi SSW 1 06                                 106        Farm                                    4.5 mi SE D-107                                107        Sewage Effluent Canal                   On-site D-108                   C            108        Farm                                    17.3 mi. SW "C" denotes control location. All other locations are indicators.
16

Table 5.4 Type and Frequency of collection.
Location         Location Type        Weekly            Monthly  Quarterly Semiannually  Annually D-1                     C            AP                            TLD D-2                     C            AP,  Al                       TLD D-3                                  AP                            TLD D-5                                  AR   Al                       TLD D-6                                  AP                            TLD D-7                                  AP,  Al                       TLD D-8                                  AP,  Al                      TLD D-1 0                                AP                           TLD D-11                                 AP,  Al                      TLD D-1 3                   C            AP                           TLD D-15                                 AP,  Al                      TLD                   SO D-16                                 AP                           TLD                   SO, G D-18 to D-23                                                      TLD D-28 to D-42                                                      TLD D-43 to D-48                                                      TLD D-49                    C                                 SW                    F D-50                    C                                 SW                   RS D-51                                                      SW                   RS D-53                                                     WW D-54                                                     WW D-55                                                     WW D-57                                                     WW                                 G D-58                                                     WW                                 G D-61                                                                            F D-63                                                       M                                G D-72                                                     WW                                G D-82 to D-86                                                      TLD D-91                                                              TLD D-93                                                        M                               G D-94                                                                                         G D-96                                                        M D-99                                                       SW D-101                                                       M D-105                    C                                  M                               G D-106                                                       M                               G D-107                                                      SW                   RS D-108                    C                                  M                               G On-site                                                     P                                ME "C" denotes control location. All other locations are indicators.
17

Table 5.5. Sample codes used in 5.4.
Code                       Description AP                        Airborne Particulates Al                       Airborne Iodine TLD                        Thermoluminescent Dosimeter P                        Precipitation M                        Milk WW                         Well Water G                        Vegetation ME                        Meat SO                        Soil SW                        Surface Water F                        Fish RS                        River Sediment 18

Table 5.6. Missed collections and analyses, Duane Arnold Energy Center.
Sample                                                 Collection Date Type             Analysis           Location(s)           or Period                    Comments MI           1-131, Gamma              D-93              12-04-01       Sample not available, goats sold; location dropped from program.
MI           1-131, Gamma             D-101             01-09-01       Sample not available; goat dry.
MI           1-131, Gamma             D-101             02-06-01       Sample not available; goat dry.
MI           1-131, Gamma             D-101             03-06-01       Sample not available; goat dry.
MI           1-131, Gamma             D-101             04-03-01       Sample not available; goat dry.
MI           1-131, Gamma             D-101             12-04-01       Sample not received; goat dry.
MI           1-131, Gamma             D-105             07-10-01       Sample not available; container sent to wrong farm.
MI           1-131, Gamma             D-105             09-05-01       Sample not available.
MI           1-131, Gamma             D-101             09-18-01       Sample not available; location dropped from program, replaced by D-108.
AP/AI          Gross Beta,              D-1 5            03-01-01       Power was off from 02-24-01; 1-131                                               very low volume due to 40.5 hour run.
Al                1-131              D-2, 5, 7,         10-18-01       Analysis for 1-131 missed by the D-8, 11,15                         laboratory**.
Al                1-131                 D-7             12-27-01       Sample lost in shipment.
TLD         Ambient Gamma           D-22, D-41,       2nd Qtr., 2001    TLDs missing in the field.
D-42, D-83 Collection and analysis of at least five air Iodine samples per week is required by the ODAM (Table 6.3-1). The requirement for this week was not met 19

Table 5.7      Radiological Environmental Program Summary.
Name of Facility            Duane Arnold Energy Center                      Docket No.       50-331 Location of Facility        Linn, Iowa                                      Reporting Period January-December, 2001 (County, State)
Indicator             Location with Highest             Control    Number Sample             Type and                       Locations                  Annual Mean                 Locations    Non Type             Number of      LLDb           Mean (F)c                              Mean (F)c        Mean (F)c   Routine (Units)           Analysesa                       Rangec           Locationd            Rangec           Rangec     Resultse Airbome        GB           635     0.002    0.026 (476/476)  D-1, Cedar Rapids       0.027 (53/53)  0.026 (159/159)    0 Particulates                            _       (0.006-0.049)       11 mi. SE          (0.009-0.058)   (0.008-0.058)
(pCi/m")       GS            48 Be-7                 0.020      0.066 (36/36)      D-10, Atkins         0.073 (4/4)    0.065 (12/12)     0 (0.045-0.096)      9 mi. SSW           (0.058-0.096)   (0.054-0.079)
Nb-95             0.0018             < LLD                                                  < LLD        0 Zr-95             0.0078             < LLD                                                  < LLD        0 Ru-1 03           0.0015             < LLD                                                  < LLD        0 Ru-106            0.0091             < LLD                                                  < LLD        0 Cs-134            0.0009             < LLD                                                  < LLD        0 Cs-1 37           0.0009             < LLD                                                  < LLD        0 Ce-141            0.0027             < LLD                                                  < LLD        0 Ce-144            0.0073             < LLD                                                  < LLD        0 Airborne Iodine      1-131       628   0.030             < LLD                                                  < LLD        0 (pCi/ma)
TLD, AP Locations       Gamma        48    1.0          15.5 (36/36)      D-8, Urbana           19.0 (4/4)     14.2 (12/12)     0 (mR/quarter)                                      (11.4-21.8)        10 mi. NW           (16.1-21.8)      (12.1-18.5)
TLD, within 0.5 mi. of Stack    Gamma        66    1.0          17.1 (66/66)     D-31, On-site          22.2 (4/4)         None         0 (mR/quarter)                                       (13.2-24.6)      0.5 mi. NW           (20.4-24.6)
TLD, within 1.0 mi. of Stack    Gamma        24    1.0          17.6 (24/24)          D-44              19.2 (4/4)         None         0 (mR/quarter)                                       (13.2-22.8)      1 mi. WSW            (16.7-21.8)
TLD, within 3.0 mi. of Stack   Gamma         38    1.0          14.9 (38/38)          D-37,             18.2 (4/4)         None         0 (mR/quarter)                                       (11.4-20.7)         3 mi. E           (15.9-20.7)
Precipitation (pCi/L)        H-3            4   330              < LLD               -                                  < LLD        0 GS            12 Mn-54              7.2              < LLD               -                    -             < LLD        0 Fe-59              11.6             < LLD               -                    -             < LLD        0 Co-58              5.9              < LLD               -                    -             < LLD        0 Co-60               7.1              < LLD               -                    -             < LLD        0 Zn-65               11.3             < LLD               -                    -             < LLD        0 Nb-95              7.6              < LLD               -                    -             < LLD        0 20

Table 5.7      Radiological Environmental Program Summary.
Name of Facility         Duane Arnold Energy Center                     Docket No.       50-331 Location of Facility     Linn, Iowa                                     Reporting Period January-December, 2001 (County, State)
Indicator             Location with Highest            Control     Number Sample           Type and                     Locations                 Annual Mean                 Locations     Non Type           Number of     LLDb           Mean (F)c                              Mean (F)c      Mean (F)c    Routine Analysesa                     Rangec          Locationd              Rangec         Rangec      Resultse (Units)
Precipitation    Zr-95             13.9            < LLD              -                                  < LLD         0 (pCi/L)       1-131             50:0-           < LLD              -                                  < LLD         0 (continued)      Cs-134            8.5             < LLD              -                                  < LLD         0 Cs-137            9.7             < LLD              -                      -           < LLD         0 Ba-140            47.0            < LLD              -                      -           < LLD         0 La-140            12.0            < LLD              -                      -           < LLD         0 Milk (pCi/L)       1-131         60  0.5             < LLD              -                      -           < LLD         0 GS            60 K-40              100         1490 (45/45)     D-93, Farm            1673 (16/16)   1384 (15/15)      0 (1060-1865)      2.8 mi. NNE           (1300-1865)    (1234-1543)
Cs-134             15             < LLD              -                     -           < LLD          0 Cs-137             18             < LLD              -                      -<            LLD         0 Ba-140             60             < LLD              -                      -           < LLD         0 La-140             15             < LLD              -                      -           < LLD         0 Ground Water        GB            24      1.1      3.4 (17/24)     D-58, Farm              6.7(4/4)         None          0 (pCi/L)                                      (1.3-8.6)    1 mi. WSW-SW              (5.6-8.6)
H-3           24     330          < LLD                                                 < LLD         0 Broadleaf      1-131          2 0.042            < LLD                                                 < LLD         0 Vegetation (pCi/g wet)     GS             2 K-40              0.5           4.11 (1/1)     D-94, Farm              4.11 (1/1)     3.38 (1/1)      0 2.7 mi. N Mn-54            0.034            < LLD              -                      -           < LLD         0 Co-58            0.032            < LLD              -                      -           < LLD         0 Co-60            0.024            < LLD              -                      -           < LLD         0 Nb-95            0.042            < LLD               -                     -<            LLD         0 Zr-95            0.074            < LLD               -                                 < LLD         0 Ru-103           0.034            < LLD               -                                 < LLD         0 Ru-106            0.39            < LLD               -                                 < LLD         0 Cs-134           0.014            < LLD               -                                 < LLD         0 Cs-1 37          0.031            < LLD               -                                 < LLD         0 Ce-141           0.046            < LLD               -                                 < LLD         0 Ce-144            0.11            < LLD               -                                 < LLD         0 21

Table 5.7     Radiological Environmental Program Summary.
Name of Facility         Duane Arnold Energy Center                    Docket No.       50-331 Linn, Iowa                                    Reporting Period January-December, 2001 Location of Facility (County, State)
Indicator            Location with Highest            Control     Number Sample            Type and                   Locations                 Annual Mean                 Locations      Non Type            Number of     LLDb          Mean (F)c                             Mean (F)c      Mean (F)c     Routine 8                            Rangec      Resultse (Units)          Analysesa                     Rangec         Location              Rangec Vegetation      GS            9 (Grain)       K-40              0.50--       7.32(7/7)      D-72, Farm            11.18 (2/2)      4.91 (212)      0 (pCi/g wet)                                                    2 mi. SSW Mn-54           0.068             < LLD              -                   -             < LLD         0 Co-58           0.077             < LLD              -                   -             < LLD         0 Co-60           0.046             < LLD              -                   -             < LLD         0 Nb-95            0.077            < LLD               -                  -             < LLD         0 Zr-95            0.15             < LLD               -                  -             < LLD         0 Ru-1 03          0.067            < LLD               -                  -<              LLD         0 Ru-106          0.55             < LLD               -                  -             < LLD         0 Cs-134          0.042            < LLD               -                  -             < LLD         0 Cs-137          0.070            < LLD               -                  -             < LLD         0 Ce-141          0.14             < LLD               -                  -             < LLD         0 Ce-144          0.40             < LLD               -                  -             < LLD         0 Soil         Sr-90        2  0.01          0.026(1/1)     D-15, On-site         0.026 (1/1)         None          0 (pCi/gwet)                                  (0.026-0.026)     0.5 mi. NW GS           2 K-40              0.5         12.08(2/2)     D-15, On-site         15.31 (1/1)         None          0 (8.85-15.31)     0.5 mi. NW Mn-54           0.036            < LLD               -                  -              None          0 Fe-59           0.092            < LLD               -                  -              None          0 Co-58           0.024            < LLD               -                   -             None          0 Co-60           0.018            < LLD               -                   -             None          0 Zn-65           0.094            < LLD               -                   -             None          0 Nb-95           0.023            < LLD                -                  -             None          0 Zr-95           0.059            < LLD                -                  -             None          0 Ru-1 03         0.030            < LLD                -                   -            None          0 Ru-1 06          0.31            < LLD                -                   -            None          0 Cs-134          0.049            < LLD                -                  -             None          0 Cs-137          0.060          0.17(212)     D-15, On-site          0.17 (1/1)         None          0 (0.16-0.17)      0.5 mi. NW Ce-141          0.052            < LLD                                    -            None          0 Ce-144           0.19            < LLD                                          I      None          0 22

Table 5.7     Radiological Environmental Program Summary.
Name of Facility         Duane Amold Energy Center                     Docket No.       50-331 Location of Facility     Unn, Iowa                                     Reporting Period January-December, 2001 (County, State)
Indicator            Location with Highest            Control     Number Sample            Type and                    Locations                Annual Mean                  Locations      Non Type            Number of     LLDb          Mean (F)c                             Mean (F)c       Mean (F)c    Routine (Units)          Analyses3                     Rangec         Locationd             Rangec          Range'      Resultse Surface Water       H-3           20     330         < LLD                                                 < LLD         0 (pCi/L)       K-40          12     -0.5    20.03-(12/12)   D-107, Onsite         20.03 (12/12)       None          0 Sewage Effluent         (8.65-30.3)                      0 1-131         60   15            < LLD              -                     -            < LLD         0 GS            60 Mn-54              15            < LLD              -<                                   LLD         0 Fe-59             30             < LLD              -                     -<             LLD         0 Co-58              15            < LLD              -                     -            < LLD         0 Co-60              15            < LLD              -                     -            < LLD         0 Zn-65             30             < LLD              -                     -            < LLD         0 Nb-95              15            < LLD              -                    -             < LLD         0 Zr-95             30             < LLD              -                    -<              LLD         0 Cs-134             15            < LLD              -                    -             < LLD         0 Cs-137             15            < LLD              -                     -            < LLD         0 Ba-140            60             < LLD              -                     -            < LLD         0 La-140             15            < LLD              -                     -            < LLD         0 Sediments       GS             6 (pCi/g dry)     K-40              1.0          6.89 (4/4)         D-50,              7.75(2/2)       7.75(2/2)       0 (5.51-7.99)     Plant Intake          (7.59-7.90)     (7.59-7.90)
Mn-54            0.027           < LLD                                                 < LLD         0 Fe-59            0.047           < LLD                                                 < LLD         0 Co-58            0.018           < LLD                                                 < LLD         0 Co-60            0.022        0.036 (1/4)   D-107, Sewage           0.036 (1/1)        < LLD         0 Effluent Canal Zn-65            0.043           < LLD              -                     -            < LLD         0 Nb-95            0.037           < LLD              -                     -            < LLD         0 Zr-95            0.042           < LLD              -                     -            < LLD         0 Ru-1 03          0.024           < LLD               -                    -            < LLD         0 Ru-106           0.13            < LLD               -                    -            < LLD         0 Cs-134           0.025           < LLD               -                    -            < LLD         0 Cs-137           0.020        0.030(2/4)          D-51,             0.030(2/2)      0.029(1/1)       0 (0.027-0.033)  Plant Discharge        (0.027-0.033)
Ce-141           0.055           < LLD                                                 < LLD         0 Ce-144           0.12            < LLD                                                 < LLD         0 23

Table 5.7       Radiological Environmental Program Summary.
Name of Facility            Duane Arnold Energy Center                         Docket No.            50-331 Location of Facility        Linn, Iowa                                         Reporting Period      January-December, 2001 (County, State)
Indicator               Location with Highest                 Control      Number Sample            Type and                        Locations                   Annual Mean                      Locations      Non Type            Number of       LLDb             Mean (F)c                                Mean (F)c           Mean (F)c     Routine Rangec             Locationd             Rangec              Rangec       Resultse (Units)          Analysesa Fish         GS             8 (pCi/g wet)     K-40                1.0--           3.00-(4/4)           D-61,               3.00 (4/4)          2.81 (4/4)       0 (2.96-3.04)        Downstream            (2.96-3.04)          (2.10-3.34)
Mn-54              0.019              < LLD                 -                     -<                 LLD          0 Fe-59              0.046              < LLD                 -                     -                < LLD          0 Co-58              0.018              < LLD                 -                     -                < LLD          0 Co-60              0.016              < LLD                 -                     -                < LLD          0 Zn-65              0.047              < LLD                 -                     -                < LLD          0 Nb-95              0.023              < LLD                 -                     -                < LLD          0 Zr-95              0.035              < LLD                 -                     -<                 LLD          0 Ru-103             0.017              < LLD                 -                    -                 < LLD          0 Ru-106             0.14               < LLD                 -                    -<                  LLD          0 Cs-134             0.027              < LLD                 -                    -                 < LLD          0 Cs-137             0.018              < LLD                 -                    -                 < LLD          0 Ce-141             0.032              < LLD                 -                    -<                  LLD          0 Ce-144              0.10              < LLD                                                        < LLD          0 a GB = Gross beta; GS = Gamma spectroscopy b LLD = Nominal lower limit of detectionbased on 4.66 sigma counting error for the background sample.
c Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (F).
SLocations   are specified by: (1) Name and code (Table 5.3); and (2) distance, direction and sector relative to reactor site.
e Non-routine results are those which exced ten times the control station value for the location. If a control station value is not available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.
24

Figure 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center.
Refer to Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.
25

Figure 5.2 Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 miles from the Duane Arnold Energy Center Refer to Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.
26

==6.0 REFERENCES==
CITED Arnold, J. R. and H. A. AI-Salih. 1955. Beryllium-7 Produced by Cosmic Rays. Science 121: 451-453.
Eisenbud, M. 1963. Environmental Radioactivity, McGraw-Hill, New York, New York, pp. 213, 275 and 276.
Environmental, Inc., Midwest Laboratory. 2001. Environmental Radiological Monitoring Program for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January December, 2000.
Environmental, Inc., Midwest Laboratory. 2002a. Environmental Radiological Monitoring Program for the Duane Arnold Energy-Center, Annual Report - Part 11,Data Tabulations and Analyses, January December, 2001.
2001.      Quality Assurance Program Manual, Rev. 0, 11 October 2000.
2001.      Quality Control Procedures Manual, Rev. 0, 21 September 2000.
2001.      Quality Control Program, Rev. 0, 12 October 2000.
Gold, S., H. W. Barkhau, B. Shlein, and B. Kahn, 1964.              Measurement of Naturally Occurring Radionuclides in Air, in the Natural Environment, University of Chicago Press, Chicago, Illinois, 369-382.
Hazleton Environmental Sciences . 1982 - 1984. Environmental Radiation Monitoring for the Duane Arnold Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January December 1981 - 1983.
Hohenemser, C. M. Deicher, A. Ernst, H. Hofsass, G. Lindner, E. Racknagel.           1986.  "Chernobyl,"
Chemtech, October 1986, pp. 596-605.
National Center for Radiological Health, 1968. Radiological Health and Data Reports, Vol. 9, Number 12, 730-746.
Teledyne Brown Engineering Environmental Services, Midwest Laboratory. 1984 - 2000. Environmental Radiological Monitoring Program for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January - December, 1983 - 1999.
Wilson, D. W., G. M. Ward and J. E. Johnson. 1969. In Environmental Contamination by Radioactive Materials, International Atomic Energy Agency. p.125.
27

-. Environmental, Inc.
Mdwest Laboratory an Alegheny Technodogis Co.
700LadwehrRoad NotlhbrookIL 60D62.2 (847)564-0700 fax (847) 564-4517 APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE:      Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.
January through December, 2001

Appendix A Interlaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory, formerly Teledyne Brown Engineering Environmental Services Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of it's 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 such a program is to provide an independent check on a laboratory's analytical procedures and to alert it of 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 control limits. 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 milk, water and air filters during the past twelve months. Data for previous years is available upon request.
This program was conducted by the U.S. Environmental Protection Agency Office of Research and Development National Exposure Research Laboratory Characterization Research Division-Las Vegas, Nevada.
The results in Table A-2 were obtained for Thermoluminescent Dosimeters (TLDs), via various International Intercomparisons of Environmental Dosimeters under the sponsorships listed in Table A-2. Results of crosscheck testing with Teledyne Brown Engineering are also listed.
Table A-3 lists results of the analyses on in-house "spiked" samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.
Table A-4 lists results of the analyses on in-house "blank" samples for the past twelve months. Data for previous years available upon request. request.
Table A-5 list results of the in-house "duplicate" program for the past twelve months. Acceptance is based on the difference of the results being less than the sum of the errors. Data for previous years available upon request.
The results in Table A-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.
The results in Table A-7 were obtained through participation in the Environmental Measurement Laboratory Quality Assessment Program.
Attachment A lists acceptance criteria for "spiked" samples.
Out-of-limit results are explained directly below the result.
Al

Attachment A ACCEPTANCE CRITERIA FOR "SPIKED" SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Analysis                                  Level                                       for single determinations Gamma Emitters                            5 to 100 pCi/liter or kg                    5.0 pCi/liter
                                            > 100 pCi/liter or kg                     5% of known value Strontium-89b                             5 to 50 pCi/liter or kg                     5.0 pCi/liter
                                            > 50 pCi/liter or kg                       10% of known value Strontium-90b                             2 to 30 pCi/liter or kg                     5.0 pCi/liter
                                            > 30 pCi/liter or kg                       10% of known value Potassium-40                              > 0.1 g/liter or kg                          5% of known value Gross alpha                                20 pCi/liter                                5.0 pCi/liter
                                          > 20 pCi/liter                              25% of known value Gross beta                                 100 pCi/liter                               5.0 pCi/liter
                                          > 100 pCi/liter                              5% of known value Tritium                                    4,000 pCi/liter                             is = (pCi/liter) =
0 0 933 169.85 x (known)
                                          > 4,000 pCi/liter                            10% of known value Radium-226,-228                            0.1 pCi/liter                               15% of known value Plutonium                                   0.1 pCi/liter, gram, or sample             10% of known value Iodine-1 31,                                55 pCi/liter                               6.0 pCi/liter Iodine-1 2 9 b                          > 55 pCi/liter                               10% of known value Uranium-238,                               35 pCi/liter                                6.0 pCi/liter Nickel-63b                              > 35 pCi/liter                               15% of known value Technetium-99b Iron-55b                                  50 to 100 pCi/liter                          10 pCi/liter
                                          > 100 pCi/liter                              10% of known value Othersb                                                                                20% of known value "aFrom EPA publication, "Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.
b  Laboratory limit.
A2

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.
Concentration (pCi/L)
Lab Code   Date         Analysis         Laboratory                       ERA             Control Resultb                     Resultc            Limits STW-897    01/24/01     Gr. Alpha         31.9 -2.1                   45.7 - 11.4       25.9 - 65.5 Gr. Beta          25.3 - 2.7                   16.7 -5.0         8.0 -25.4 STW-897    01/24/01 1-131             27.2 - 0.8                  28.3 - 3.0        23.1 - 33.5 STW-900    02/08/01 Ra-226             4.0  -0.1                    4.7 - 0.7        3.4 - 5.9 STW-902    02/21/01 Ra-228            13.8  -0.4                   14.4 -3.6         8.2 - 20.6 STW-902    02/21/01 Uranium           17.0  -0.3                  20.4 -3.0         15.2 - 25.6 STW-902    02/21/01 H-3           17400.0   - 69.7            17800.0 - 1780.0  14700.0 -20900.0 STW-903    03/07/01 Gr. Alpha         57.4  -   3.5                56.0 - 14.0      31.8 - 80.2 STW-917    04/18/01 Ra-226            13.5 -0.4                    17.7 -2.7        13.1 -22.3 STW-917    04/18/01 Ra-228            10.1 -0.6                     8.1 -2.0         4.6 -11.6 STW-917    04/18/01 Uranium           14.2 -0.2                    15.6 -3.0        10.4 - 20.8 STW-917    04/18/01 Co-60             27.9 - 1.4                   26.4 - 5.0       17.7 -35.1 STW-918    04/18/01 Cs-1 34           16.0 -0.4                    16.9 -5.0          8.2 - 25.6 STW-918    04/18/01 Cs-1 37          195.4  -   1.5              186.0 -9.3       170.0 - 202.0 STW-918    04/18/01 Gr. Beta         343.0 -1.7                  340.0 -51.0      252.0 - 428.0 STW-918    04/18/01 Sr-89             62.8  -   5.7                64.1 - 5.0       55.5 - 72.8 STW-918    04/18/01 Sr-90             34.2  -   1.6                33.8 - 5.0       25.1 -42.5 STW-918    04/18/01 Ba-133           37.8  -   1.2                36.0 - 5.0       27.3 - 44.7 STW-919    06/04/01 Co-60            49.9  -   0.7                46.8 - 5.0       38.1 -55.5 STW-919    06/04/01 Cs-134            16.0 -   1.4                15.9 - 5.0         7.2 - 24.6 STW-919    06/04/01 Cs-1 37         208.0  -   1.7               197.0 -9.9       180.0 - 214.0 STW-919   06/04/01 Zn-65             37.8 -   0.7                36.2 - 5.0       27.5 - 44.9 STW-919   06/04/01 Ra-226            14.6 -0.4                   15.4 -2.3        11.4-19.4 STW-920   06/13/01 Ra-228             6.2 -0.2                     4.5 - 1.1        2.6 - 6.5 STW-920   06/13/01 Uranium          49.0 - 1.0                   55.7 - 5.6       46.1 - 65.3 STW-920   06/13/01 Sr-89             19.8 - 1.5                  31.2 -5.0        22.5 - 39.9 STW-921 d 07/11/01 Sr-90             26.3 - 1.1                  25.9 - 5.0        17.2 - 34.6 STW-921   07/11/01 Gr. Alpha         23.3 -1.9                   17.8 -5.0          9.1 -26.5 STW-922   07/16/01 Gr. Beta          48.5 -4.6                   53.0 -10.0       35.7 - 70.3 STW-922   07/16/01 H-3            2680.0 - 41.9               2730.0 - 356.0   2110.0 - 3350.0 STW-924   08/08/01 Ra-226            10.9 -0.2                    10.8 - 1.6         8.0 - 13.6 STW-931    09/26/01 Ra-228             9.7   -  1.1                 9.0 -2.2          5.1 -12.8 STW-931    09/26/01 Uranium           11.2 -0.1                    13.1 -3.0          7.9 - 18.3 STW-931    09/26/01 1-131              7.7 - 0.3                    7.7 -2.0          4.2-11.2 STW-932    10/04/01 Gr. Alpha         82.2 - 4.0                  97.5 - 24.4       55.3 - 140.0 STW-933    10/18/01 Ra-226             9.5 - 1.2                   10.8 -1.6          8.0 - 13.6 STW-933    10/18/01 Ra-228            17.0 -0.8                    15.6 -3.9          8.9 -22.4 STW-933    10/18/01 Uranium           32.2-1.4                     37.2 - 3.7       30.7 -43.6 STW-933    10/18/01 10/18/01     Co-60             82.4 -0.9                    78.4 -5.0        69.7 - 87.1 STW-934 Cs- 134           52.2   -  1.3                54.1 -5.0        45.4 - 62.8 STW-934    10/18/01 Cs-137            39.4 -0.6                    37.9 - 5.0       26.3 - 43.7 STW-934    10/18/01 Gr. Beta         166.0 -7.1                  192.0 -28.8      142.0 - 242.0 STW-934    10/18/01 Sr-89             12.8 -0.8                    16.7 -5.0          8.0 -25.4 STW-934    10/18/01 Sr-90              6.8 - 0.7                    7.7 - 5.0        -1.0-16.4 STW-934    10/18/01 Al-1

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.
Concentration (pCi/L)
Lab Code      Date          Analysis              Laboratory                       ERA                         Control Resultb                     Resultc                       Limits STW-935       10/22/01      Gr. Alpha               63.5 - 2.5                  64.0 - 16.0                  36.5  -91.5 10/22/01      Gr. Beta                26.0 - 1.2                  21.5 -5.0                    12.8  - 30.2 STW-935 STW-938       11/14/01      Ba-133                  66.7 - 1.2                  69.3 - 6.9                   57.5  -81.1 STW-938       11/14/01      Co-60                   59.3 - 0.6                  59.7 - 5.0                   51.0  - 68.4 11/14/01      Cs-134                  86.7 - 1.5                  93.9 - 5.0                   85.2  - 103.0 STW-938 STW-938       11/14/01      Cs-1 37                 45.0 - 1.0                  42.0 - 5.0                   33.3  - 50.7 STW-938       11/14/01      Zn-65                   80.7 - 0.6                  77.3 - 7.7                   63.9  - 90.7 a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the environmental samples crosscheck program operated by Environmental Resources Associates (ERA).
b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.
c Results are presented as the known values, expected laboratory precision (1 sigma, I determination) and control limits as provided by ERA.
d Delay in processing may have attributed to deviation. Result of reanalysis; Sr-89, 35.3 +/- 4.4 pCi/L. Sr-90, 25.0 +/- 2.8 pCi/L.
Al -2

TABLE A-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLDs).
mR Lab Code    TLD Type             Date            Measurement      Known       Lab Result             Control Value       +/- 2 sigma              Limits Teledyne Brown Engineering 2000-1       LiF-100 Chips       3/14/2000       Reader 1, #1       17.8       14.43 +/- 0.2       12.46 +/- 23.1 Reader 1, #2       35.5       32.39 +/- 0.1       24.85 +/- 46.2 2000-1       LiF-100 Chips       3/14/2000 Reader 1, #3       62.2       61.84 +/- 0.9       43.54 +/- 80.9 2000-1       LiF-100 Chips       3/14/2000 Teledyne Brown Engineerinq 3/14/2000       Reader 1, #1        17.8      21.29 +/- 0.3       12.46 +/- 23.1 2000-2       CaSO4: Dy Cards Reader 1, #2       35.5       40.12 +/- 1.9       24.85 +/- 46.2 2000-2       CaSO4: Dy Cards     3/14/2000 Reader 1, #3       62.2       69.94 +/- 3.5       43.54 +/- 80.9 2000-2       CaSO4: Dy Cards     3/14/2000 12th International Intercomparison 161       184.9  +/- 1.9     112.7  +/- 209.3 022-1        CaSO4:   Dy Cards   6/15/2000       Field Field 1              548       502.2  +/- 1.7     383.6  +/- 712.4 022-1        CaSO4:   Dy Cards   6/15/2000 Field 2              391        412   +/- 2.9     273.7  +/- 508.3 022-1        CaSO4:   Dy Cards   6/15/2000 Field 3              623       643.2  +/- 2.9     436.1  +/- 809.9 022-1       CaSO4:   Dy Cards   6/15/2000 391       442.8  +/- 2.5     273.7  +/- 508.3 022-1       CaSO4:   Dy Cards   6/15/2000       Lab, 1 The 12th International Intercomparison of Environmental Dosimeters was conducted at the Brookhaven National Laboratory, Upton, New York, and cosponsored by the DOE, Environmental Measurements Laboratory.
Environmental, Inc.
CaSO4: Dy Cards     12/24/2001      Reader 1  #1       3.98        3.71  +/- 0.1        2.8  +/- 5.2 2001-1                                                                                             2.8  +/- 5.2 12/24/2001      Reader 1  #1       3.98        3.38  +/- 0.1 2001-1       CaSO4: Dy Cards                                                                       4.9  +/- 9.2 12/24/2001      Reader 1  #2       7.07        7.89  +/- 0.2 2001-1       CaSO4: Dy Cards                                                                       4.9  +/- 9.2 12/24/2001      Reader 1  #2       7.07        7.64  +/- 0.3 2001-1       CaSO4: Dy Cards                                                                      11.1  +/- 20.7 12/24/2001      Reader 1  #3       15.9       18.62  +/- 0.4 2001-1       CaSO4: Dy Cards                                                                      11.1  +/- 20.7 12/24/2001      Reader 1  #3       15.9       19.58  +/- 0.1 2001-1       CaSO4: Dy Cards                                                                      44.5  +/- 82.7 12/24/2001      Reader 1  #4      63.61       78.24  +/- 1.2 2001-1       CaSO4: Dy Cards                                                                      44.5  +/- 82.7 Reader 1  #4      63.61       79.89  +/- 2.5 2001-1       CaSO4: Dy Cards     12/24/2001 A2-1

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)a Sample       Date       Analysis     Laboratory results     Known           Control Lab Code Type                                     2s, n= lb         Activity         Limitsc Air Filter   01/25/01   Cs-137           1.76 +/- 0.02             1.68      1.01 -2.35 SPAP-477                                                                  54549.00 43639.20 - 65458.80 Water        01/25/01   H-3         54702.00 +/- 644.00 SPW-479                                                                       69.14    34.57 - 103.71 Water        01/25/01   Gr. Alpha       58.08 +/- 2.79 SPW-481                                                                     220.26    198.23 - 242.29 Water        01/25/01   Gr. Beta      213.83 +/- 3.07 SPW-481                                                                       69.14    34.57 - 103.71 01/25/01   Gr. Alpha       51.77 +/- 2.18 SPW-482       Water 74.72 +/- 3.14            69.14    34.57 - 103.71 SPW-482       Water        01/25/01   Gr. Alpha 202.48 +/- 2.98           220.26    198.23 - 242.29 SPW-482      Water        01/25/01   Gr. Beta 20.11 +/- 0.34            20.86    14.60 - 27.12 SPW-483      Water        01/25/01   Ra-226 10.55 +/- 2.02            19.43    13.60 - 25.26 SPW-483 d    Water        01/25/01   Ra-228 33.53 +/- 3.40            31.13    21.13 -41.13 SPW-485      Water        01/25/01   Co-60 32.80 +/- 2.54            30.81    20.81 - 40.81 SPW-485      Water        01/25/01   Cs-1 34 42.10 +/- 5.60            36.00    26.00 - 46.00 SPW-485       Water       01/25/01   Cs-137 Sr-90          154.34 +/- 3.49           137.66   110.13 - 165.19 SPW-485       Water       01/25/01 8.53 +/- 0.02             7.88    -2.12 - 17.88 SPAP-754      Air Filter  01/25/01   Gr. Beta 3.74 +/- 0.10             4.17     2.50 -5.84 SPW-1037      Water       02/16/01   U-233/4 3.76 +/- 0.22             4.17     2.50 -5.84 SPW-1037      Water       02/16/01   U-233/4 3.84 +/- 0.23             4.17    -7.83 - 16.17 SPW-1037      Water       02/16/01   U-238 3.81 +/- 0.10             4.17    -7.83 - 16.17 SPW-1 037     Water       02/16/01   U-238 21.25 +/- 0.50            20.68     14.48 - 26.88 SPW-1224      Water       02/20/01    Ra-226 30.88 +/- 1.62             34.45    24.12 - 44.79 SPW-1224      Water       02/20/01    Ra-226 21.76 +/- 2.65             19.27    13.49 -25.05 SPW-1224      Water       02/20/01    Ra-228 71.87 +/- 3.07            69.14    34.57 - 103.71 SPW-1225      Water        02/20/01   Gr. Alpha 88.22 +/- 3.07            69.14    34.57 - 103.71 SPW-1 225     Water        02/20/01   Gr. Alpha 36.30 +/- 1.47            28.75    18.75 - 38.75 SPW-1225      Water        02/20/01   Gr. Beta 33.05 +/- 1.51            28.75    18.75 - 38.75 SPW-1225      Water        02/20/01   Gr. Beta 56.82 +/- 0.71            63.05    50.44 - 75.66 SPW-1272      Water        02/26/01   1-131 65.69 +/- 10.21           63.05    53.05 - 73.05 SPW-1 272     Water        02/26/01   1-131(G) 0.80 +/- 0.05             0.76     0.45 - 1.06 Vegetation   02/26/01   1-131(G)
SPVE-1274                                                                       0.76     0.45 - 1.06 Vegetation   02/26/01   1-131(G)          0.78 +/- 0.05 SPVE-1274                                                                       1.58     0.95 - 2.21 02/26/01   1-131(G)          1.57 +/- 0.05 SPCH-1276     Charcoal 31.89 +/- 4.71            29.77    19.77 - 39.77 SPMI-1270     Milk         03/03/01   Cs-1 34 46.61 +/- 8.81            35.90    25.90 - 45.90 SPMI-1270     Milk        03/03/01   Cs-137 81.92 +/- 10.80           81.95    71.95 - 91.95 SPMI-1270 e   Milk        03/03/01   1-131(G)
H-3         51512.00 +/- 1369.00      50189.00 40151.20 - 60226.80 SPU-2901      Urine       03/15/01 H-3         51966.00 +/- 1375.00      50189.00 40151.20 - 60226.80 SPU-2901      Urine       03/15/01 H-3         51152.00 +/- 1365.00      50189.00 40151.20 - 60226.80 SPU-2901      Urine       03/15/01 H-3         50175.00 +/- 1353.00      50189.00 40151.20 -60226.80 SPU-2901      Urine       03/15/01 29.92 +/- 5.13            31.75     22.23 -41.28 SPW-2161      Water       03/27/01    Ra-228 H-3         2065.00 +/- 408.00        2008.00   1317.37 - 2698.63 SPU-3128      Urine       04/25/01 37.94 +/- 2.42             34.57    17.29 - 51.86 SPW-3129      Water       04/25/01    Gr. Alpha 117.83 +/- 2.37           109.46     98.51 - 120.41 SPW-3129      Water       04/25/01    Gr. Beta 0.80 +/- 0.01             0.78    -9.22 - 10.78 SPAP-3508     Air Filter  04/25/01    Gr. Beta 32.69 +/- 6.50            33.96    23.96 - 43.96 SPMI-3232     Milk        04/27/01    Cs-134 44.20 +/- 9.08            35.79    25.79 - 45.79 SPMI-3232     Milk         04/27101   Cs-137 A3-1

1 1.
TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)
Lab Code      Sample      Date      Analysis    Laboratory results      Known             Control Type                                   2s, n=1b           Activity           Limitsc Milk        04/27/01  1-131          48.05 +/- 0.90             56.68      45.34 - 68.02 SPMI-3232                                                                              46.68 - 66.68 1-131(G)       55.64 +/- 11.39            56.68 SPMI-3232     Milk        04/27/01 Sr-90         143.77 +/- 3.04           136.82      109.46 - 164.18 SPMI-3232     Milk        04/27/01 18.49 +/- 0.21             19.57       9.57 - 29.57 SPSO-3356     Soil        04/27/01  Co-60 Cs-137         18.71 +/- 0.24             16.61        6.61 -26.61 SPSO-3356     Soil        04/27/01 1.80 +/- 0.01              1.67       1.00 -2.34 SPAP-3359     Air Filter  04/27/01  Cs-137 48.17 +/- 4.85             45.19      35.19 -55.19 SPW-3376      Water       04/27/01  Co-60 Cs-1 34        37.14 +/- 3.90             33.96      23.96 - 43.96 SPW-3376      Water       04/27/01 Sr-90         159.84 +/- 3.42           136.82      109.46 - 164.18 SPW-3376      Water       04/27/01 68.60 +/- 2.63             85.02      68.02 - 102.02 SPW-3377      Water       04/27/01  1-131 Gr. Alpha      37.94 +/- 2.42             34.57      17.29 -51.86 SPW-3129/1    Water       05/07/01 Gr. Beta      117.83 +/- 2.37           109.46       98.51 - 120.41 SPW-3129/1    Water       05/07/01 34.42 +/-2.14             34.57      17.29 -51.86 SPW-3129/2    Water       06/13/01  Gr. Alpha Gr. Beta     119.99 +/- 2.45            109.46      98.51 - 120.41 SPW-3129/2    Water       06/13/01 0.81 + 0.03              0.86       0.51 -1.20 SPVE-3303    Vegetation  06/14/01   1-131(G) 17.42 +0.19             19.05        9.05 - 29.05 SPSO-5701    Soil        07/10/01   Co-60 16.03 +/- 0.22            16.52        6.52 - 26.52 SPSO-5701    Soil        07/10/01   Cs-1 37 250.05 +/- 18.63          233.26      209.93 - 256.59 SPW-5779     Water       07/10/01   Co-60 Cs-137       178.68 +/- 19.89           175.91     158.32 - 193.50 SPW-5779     Water       07/10/01 Sr-90          72.12 +/- 2.24            68.12      54.50 -81.74 SPW-5779     Water       07/10/01 1.87 +/- 0.08              1.79        1.07 - 2.51 SPF-5781      Fish       07/10/01   Co-60 Cs-1 37         1.43 +/- 0.07              1.39       0.83 -1.95 SPF-5781      Fish       07/10/01 H-3        51177.00 +/- 631.00       50189.00    40151.20 -60226.80 SPW-5937     water       07/12/01 Ra-226         36.62 +/- 1.74            34.46      24.12 - 44.80 SPW-59441    Water       07/12/01 Ra-228         41.46 +/- 6.44            36.06      25.24 - 46.88 SPW-59441     Water      07/12/01 Cs-137          1.81 +/-0.02               1.67        1.00 - 2.34 SPAP-5703     Air Filter  07/13/01 35.31 +/- 3.04            34.75       17.38 -52.13 SPW-3129/3    Water       07/18/01  Gr. Alpha 113.28 +/- 3,65            109.46       98.51 - 120.41 SPW-3129/3    Water       07/18/01  Gr. Beta Cs-1 37      188.45 +/- 19.10           175.91     158.32 - 193.50 SPMI-6145     Milk        07/20/01 Sr-90          34.90 +/- 1.55            27.25       17.25 - 37.25 SPMI-6145     Milk        07/20/01 Gr. Alpha      35.36 +/- 1.94             34.57      17.29 - 51.86 SPW-6604      Water       07/25/01 Gr. Beta      112.56 +/- 2.46           108.82       97.94 - 119.70 SPW-6604      Water       07/25/01 H-3        48285.00 +/- 606.10       50189.00    40151.20 -60226.80 SPW-9008      Water       10/10/01 1.91 +/- 0.01              1.67       1.00 -2.34 SPAP-901 0    Air Filter  10/10/01  Cs-1 37 U-233/4        40.12 +/- 1.09             41.73      25.04 - 58.42 SPW-10723     Water       12/02/01 U-238          40.16 +/- 1.09             41.73      29.21 - 54.25 SPW-10723     Water       12/02/01 1.58 +/- 0.02              1.56      -8.44 -11.56 SPAP-1 1550   Air Filter  12/27/01  Gr. Beta Co-60          43.82 +/- 3.14             41.36      31.36 -51.36 SPW-11757     Water       12/28/01 Cs-134         24.11 +/- 2.42             22.59      12.59 -32.59 SPW-1 1757    Water       12128/01 Cs-1 37        52.11 +/- 4.40             50.89      40.89 - 60.89 SPW-11757     Water       12/28/01 Cs-1 34        28.03 +/- 2.64             27.10      17.10 - 37.10 SPMI-1 1759   Milk        12/28/01 Cs-1 37        54.59 +/- 5.08             50.89      40.89 - 60.89 SPMI-1 1759   Milk        12/28/01 Cs-1 34         0.94 +/- 0.02              0.90       0.54 -1.26 SPF-11761     Fish        12/28/01 Cs-1 37         1.43 +/- 0.04              1.43       0.86 - 2.00 SPF-1 1761    Fish        12/28/01 A3-2

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)
Lab Code           Sample        Date        Analysis        Laboratory results      Known                Control Type                                           2s, n= 1b          Activity             Limitsc a All results are in pCi/L, except for elemental potassium (K) in milk, which are in mg/L.; air filter samples, which are in pCi/Filter; and food products, which are in mg/kg.
b Results are based on single determinations.
c Control limits are based on Attachment A, Page A2 of this report.
d Sample was lost during analysis. Insufficient sample available to perform reanalysis.
e The Cs-137 spike is suspect; A new cesium spike has been prepared. Reference to SPMI-3232.
NOTE: For fish, Jello is used for the spike matrix. For vegetation, coleslaw is used for the spike matrix.
A3-3

TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a Analysis         Laboratory results (4.66y)         Acceptance Lab Code      Sample        Date LLD            Activityb        Criteria (4.66 a)
Type Co-60             1.12                                100 SPAP-478      Air Filter    01/25/01                                                          100 Cs-134            1.66 SPAP-478      Air Filter    01/25/01                                                          100 Cs-137            2.46 SPAP-478      Air Filter     01/25/01                                                         200 H-3             643.40 SPU-480c      Urine          01/25/01                                                         200 H-3             162.00         -1.86 +/- 80.40 SPW-480       Water          01/25/01                                                             1 Gr. Alpha         0.68 SPW-484       Water          041/25/01                                                         3.2 Gr. Beta          1.35 SPW-484      Water          01/25/01                                   0.03 +/- 0.01               1 Ra-226            0.02 SPW-484      Water          01/25/01                                   0.43 +/- 0.50               2 Ra-228            0.97 SPW-484      Water          01/25/01                                                           10 Co-60             2.68 SPW-486      Water          01/25/01                                                           10 Cs-134            3.46 SPW-486      Water          01/25/01                                                           10 Cs-1 37           5.43 SPW-486      Water          01/25/01                                   0.06 + 0.31               1 Sr-90             0.65 SPW-486      Water          01/25/01                                   0.16 +/- 0.90            3.2 Gr. Beta           1.60 SPAP-755      Air Filter    01/25/01                                                             1 U-238             0.03 SPW-1038      Water         02116/01                                                             1 U-238             0.00 SPW-1038      Water         02/16/01                                                             1 Gr. Alpha         0.46 SPW-1223      Water         02/20/01                                                           3.2 Gr. Beta          1.50 SPW-1223      Water         02/20/01                                  0.026 +/- 0.011              1 Ra-226            0.02 SPW-1223      Water          02/20/01                                   0.45 + 0.49              2 Ra-228            0.95 SPW-1223      Water          02/20/01                                                           10 Cs-1 34           5.86 SPMI-1268     Milk           02/26/01                                                           10 Cs-1 37           3.02 SPMI-1268     Milk           02/26/01                                                           20 1-131(G)          7.46 SPMI-1268     Milk           02/26/01                                                           10 Co-60             1.06 SPW-1271      Water          02/26/01                                                           10 Cs-1 34           2.61 SPW-1 271    Water          02/26/01                                                           10 Cs-137            2.37 SPW-1 271    Water          02/26/01                                                          100 Cs-1 34          10.04 SPVE-1273    Vegetation     02/26/01                                                          100 Cs-1 37           6.00 SPVE-1273    Vegetation     02/26/01                                                          9.6 1-131(G)          0.01 SPch-1275     Charcoal      02/26/01                                  0.050   +/- 0.010            1 Ra-226            0.02 SPW-2164     Water          03/27/01                                  -66.0   + 335.0         200 H-3             642.00 SPU-3126c     Urine         04/25/01                                  0.042   + 0.38              1 Gr. Alpha          0.54 SPDW-3130     Water         04/25/01                                    0.67  +/- 1.04           3.2 Gr. Beta           1.46 SPDW-3130     Water         04/25/01                                                            10 Cs-137             2.66 SPMI-3233     Milk          04/27/01                                   -0.06 +/- 0.14            0.5 1-131             0.26 SPMI-3233     Milk           04/27/01                                                           20 1-131(G)          3.91 SPMI-3233     Milk           04/27/01                                  -0.32 +/- 0.79               5 Sr-89             0.79 SPMI-3233     Milk           04/27/01                                   1.18 +/- 0.35               1 04/27/01   Sr-90 SPMI-3233"    Milk                                                                            100 Cs-1 34          14.77 SPSO-3357     Soil           04/27/01                                                         100 Cs-1 37          11.72 SPSO-3357     Soil           04/27/01                                                         100 Cs-137            0.55 SPAP-3358    Air Filter     04/27/01                                                           10 Co-60             2.90 SPW-3375     Water          04/27/01                                                           10 Cs-1 34           3.71 SPW-3375     Water          04/27/01                                                           20 04/27/01   1-131(G)          0.39         0.024 +/- 0.22
   .SPW-3375    Wrater A4-1

1 11 TABLE A-4. In-House "Blank" Samples Concentration (pCi/L)a Lab Code          Sample             Date           Analysis                   Laboratory results (4.66o)                Acceptance Type                                                          LLD             Activityb            Criteria (4.66 a)
SPW-3375          Water              04/27/01        Sr-90                      0.56            0.05  +/- 0.27 Water              05/21/01        Gr. Alpha                  0.45            0.15  +/- 0.34                  1 SPDW-3130 SPDW-3130         Water              05/21/01        Gr. Beta                    1.26           0.34  +/- 0.95 Water              06/13/01        Gr. Alpha                  0.44            0.09  +/- 0.32                  1 SPDW-3130 Water              06/13/01        Gr. Beta                    1.46           0.66  +/- 1.04                3.2 SPDW-3130 Vegetation         06/14/01        Co-60                       7.06                                      100 SPVE-3304 SPVE-3304         Vegetation         06/14/01        Cs-1 34                   11.56                                       100 SPVE-3304         Vegetation         06/14/01        Cs-1 37                     8.30                                      100 SPSO-5702         Soil               07/10/01        Co-60                     12.80                                       100 SPSO-5702         Soil               07/10/01        Cs-134                    13.96                                       100 SPSO-5702         Soil               07/10/01        Cs-137                      8.10                                      100 SPAP-5704         Air Filter         07/10/01        Co-60                       0.79                                      100 SPAP-5704         Air Filter         07/10/01        Cs-134                      0.84                                      100 SPAP-5704         Air Filter         07/10/01        Cs-137                      0.60                                      100 SPW-5780          Water              07/10/01        Co-60                       1.86                                        10 07/10/01        Cs-134                      2.46                                        10 SPW-5780          Water Cs-1 37                     3.77                                        10 10 SPW-5780          Water              07/10/01 Fish              07/10/01        Co-60                       5.64                                      100 SPF-5782 Fish              07/10/01        Cs-1 34                     7.51                                      100 SPF-5782 Fish              07/10/01        Cs-1 37                     8.90                                      100 SPF-5782 Water             07/12/01        H-3                      163.22         -16.21   +/- 85.07              200 SPW-5938 SPW-59451          Water             07/12/01        Ra-226                      0.01         0.041   +/- 0.010 SPW-59451          Water             07/12/01        Ra-228                      0.77           0.70  +/- 0.44                   2 SPDW-3130          Water             07/18/01        Gr. Alpha                   0.54           0.36  +/- 0.40                   1 Water             07/18/01        Gr. Beta                    2.27          -0.78  +/- 1.35                3.2 SPDW-3130 SPMI-6146d         Milk              07/20/01        Sr-90                       0.50           1.09  +/- 0.36                   1 Water             07/25/01        Gr. Alpha                   0.47           0.20   +/- 0.37                  1 SPW-6605 SPW-6605           Water             07/25/01        Gr. Beta                    1.34           0.55   +/- 1.01               3.2 Water             10/10/01        H-3                      160.00           -56.7   +/- 76.50             200 SPW-9009 Air Filter        10/10/01        Co-60                       0.76                                      100 SPAP-901 1 Air Filter        10/10/01        Cs-137                      0.58                                      100 SPAP-9011 Water             10/16/01        Sr-90                       0.54           0.36 +/- 0.30                    1 SPW-5780 SPW-10724         Water             12/02/01        U-238                       0.13         0.042 +/- 0.10                     1 SPAP-11549        Air Filter        12/27/01        Gr. Beta                    0.00         0.014 +/- 0.002                 3.2 SPW-1 1756        Water             12/28/01        Cs-1 37                     2.62                                         10 SPMI-1 1758       Milk              12/28/01        Cs-1 37                     4.00                                         10 SPMI-11758        Milk              12/28/01         1-131 (G)                 16.57                                        20 SPF-1 1760        Fish              12/28/01        Cs-1 37                     7.96                                       100 a Liquid sample results are reported in pCi/Liter, air filters( pCilfilter), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).
b The activity reported is the net activity result.
2.0 ml. sample volume.
Low levels of Sr-90 are still detected in the environment. A concentration of (1-5 pCi/L) in milk is not unusual.
A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged First Result       Second Result             Result Lab Code          Date           Analysis Be-7            0.06 +/- 0.02          0.06 +/- 0.02          0.06 +/- 0.01 AP-10675, 10676   01/02/01                                            0.04 +/- 0.01 Be-7            0.04 +/- 0.01                               0.04 +/- 0.01 AP-10803, 10804   01/03/01                                            0.04 +/- 0.01 0.04 +/- 0.01                               0.04 +/- 0.01 01/03/01       Be-7                                                   389.90 +/- 67.71 AP-10833, 10834                                                    417.20 +/- 96.80 H-3          362.60 +/- 94.70 WW-51, 52         01/04/01                                                             1469.65 +/- 124.49 1566.90 +/- 196.80     1372.40 +/- 152.50 01/08101       K-40                                                  1482.00 +/- 100.35 MI-72, 73                                                         1545.70 +/- 162.50
                               - K-40        1418.30 +/- 117.80 MI-96, 97         01/10101                                             4.23 +/- 2.74         3.20 +/- 1.84 Gr. Beta        2.17 +/- 2.47 U-858, 859        01/18101                                                             1476.25 +/- 109.77 1489.20 +/- 141.10     1463.30 +/- 168.20 01/24/01       K-40                                                      2.50 +/- 0.36 MI-389, 390                                                           2.37 +/- 0.50 Gr. Beta        2.63 +/- 0.52 DW-879, 880      01/29/01                                             2.46 +/- 0.63         2.47 +/- 0.43 Gr. Beta        2.48 +/- 0.58 SWU-813, 814     01130/01                                                             1229.90 +/- 68.48 1179.40 +/- 103.00     1280.40 +/- 90.26 02/01/01       K-40                                                     -0.05 +/- 0.18 MI-708, 709                                                          -0.12 +/- 0.26 1-131           0.01 +/- 0.26 MI-740, 741      02/01/01                                                             1434.50 +/- 100.49 1434.00 +/- 156.50     1435.00 +/- 126.10 02/01/01       K-40                                                  1487.50 +/- 104.70 MI-740, 741                                                      1390.70 +/- 136.50 02/05/01       K-40        1584.30 +/- 158.80 MI-789, 790                                                           5.54 +/- 1.13          5.11 +/- 0.78 Gr. Beta         4.67 +/- 1.08 DW-901, 902       02/07/01                                            2.33 +/- 0.52          2.73 +/- 0.41 Gr. Beta         3.13 +/- 0.63 SWU-1544, 1545    02/27/01                                            2.34 +/- 0.93          2.20 +/- 0.65 Gr. Beta         2.05 +/- 0.92 DW-1426, 1427     02/28/01                                                               86.96 +/- 67.02 42.60 +/- 94.23       131.31 +/- 95.34 02/28/01       H-3                                                     53.06 +/- 56.97 DW-1426, 1427                                  53.06 +/- 65.79        53.06 +/- 93.03 02/28/01       H-3                                                      -0.06 +/- 0.21 WW-1476, 1477                                   -0.01 +/- 0.20         -0.10 +/- 0.37 03/02/01       1-131                                                 1486.00 +/- 130.71 MI-1523, 1524                                                     1576.00 +/- 184.90 03/02/01       K-40        1396.00 +/- 184.80 MI-1523, 1524                                                     1326.00 +/- 118.80     1412.60 +/- 82.08 K-40        1499.20 +/- 113.30 MI-1572, 1573     03/07/01                                             1.51 +/- 0.52         1.58 +/- 0.34 Sr-90           1.65 +/- 0.44 MI-1572, 1573    03/07/01                                         344.80 +/- 82.30       321.30 +/- 53.13 03/07/01       K-40         297.80 +/- 67.20 SW-1648, 1649                                                    1372.20 +/- 119.70     1399.00 +/- 109.46 03/12/01       K-40        1425.80 +/- 183.30 MI-1800, 1801                                                         2.14 +/- 0.69         2.18 +/- 0.50 Gr. Alpha       2.22 +/- 0.73 SW-1779, 1780    03/13/01                                             6.62 +/- 0.70         6.45 +/- 0.51 03/13/01       Gr. Beta        6.28 +/- 0.74 SW-1779, 1780                                                         0.13 +/- 0.55        -0.26 +/- 0.31 1-131         -0.65 +/- 0.27 MI-1447, 1448    03/14/01                                                             1454.80 +/- 115.01 1496.20 +/- 155.40     1413.40 +/- 169.60 03/14/01        K-40                                                  520.44 +/- 78.59 MI-1447, 1448                                                      500.85 +/- 110.46 03/22/01        H-3         540.04 +/- 111.84 WW-2115, 2116                                                         5.57 +/- 1.85          5.82 +/- 1.27 Gr. Beta        6.07 +/- 1.75 SW-1698, 1699     03/26/01                                            1.63 +/- 0.83          1.87 +/- 0.60 Gr. Beta        2.10 +/- 0.86 DW-2272, 2273     03/28/01                                            1.32 +/- 0.47          1.27 +/- 0.35 Gr. Beta        1.22 +/- 0.50 WW-2356, 2357     03/28/01                                            0.05 +/- 0.01          0.06 +/- 0.01 Be-7            0.07 +/- 0.02 AP-2812, 2813     03/28/01                                            0.05 +/- 0.01          0.06 +/- 0.01 Be-7            0.07 +/- 0.02 AP-2812, 2813     03/28/01                                            2.23 +/- 0.55          2.04 +/- 0.37 Gr. Beta        1.85 +/- 0.51 LW-2217, 2218     03129/01                                            0.06 +/- 0.02          0.05 +/- 0.01 03/29/01       Be-7            0.04 +/- 0.01 AP-2833, 2834                                                          0.07 +/- 0.02         0.07 +/- 0.01 03/29/01        Be-7           0.07 +/- 0.02 AP-3038, 3039                                                          0.07 +/- 0.01         0.07 +/- 0.01 03/29/01        Be-7           0.06 +/- 0.02 AP-3038, 3039                                                          1.81 +/- 0.88         1.69 +/- 0.63 Gr. Beta       1.58 +/- 0.89 DW-2398, 2399    03/30/01                                             2.42 +/- 0.53         2.47 +/- 0.37 03/31/01        Gr. Beta       2.52 +/- 0.53 LW-2467, 2468                                                    1376.00 +/- 175.90     1330.70 +/- 124.81 04/02/01        K-40       1285.40 +/- 177.10 MI-2446, 2447                                                         0.05 +/- 0.01          0.05 +/- 0.00 Be-7           0.05 +/- 0.01 AP-3017, 3018    04/02/01                                                              262.00 +/- 44.31 255.60 +/- 59.80       268.40 +/- 65.40 04/03/01        K-40 SW-2423, 2424 A5-1

1 11 TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code          Date          Analysis       First Result       Second Result             Result BS-3103, 3104     04/19/01       Gr. Beta       7.99 +/- 1.80         8.17 +/- 1.73           8.08 +/- 1.25 SWU-3239, 3240    04/24/01       Gr. Beta       3.30 +/- 0.60         4.30 +/- 0.74           3.80 +/- 0.48 SS-3322, 3323     04/25/01       K-40         15.99 +/- 1.08         15.59 +/- 1.01          15.79 +/- 0.74 W-3990, 3991      04/30/01       Sr-89        91.35 +/- 18.94        85.29 +/- 23.99         88.32 +/- 15.28 BS-4347, 4348     04/30/01       K-40       3982.40 +/- 489.60     3255.80 +/- 450.10      3619.10 +/- 332.53 BS-4347, 4348     04/30/01       K-40           3.26  +/- 0.45        3.98  +/- 0.49          3.62 +/- 0.33 MI-3364, 3365     05/01/01       K-40       1325.90   +/- 160.20   1453.20  +/- 163.00     1389.55 +/- 114.27 SO-3385, 3386     05/01/01       Gr. Alpha      6.51  +/- 3.09        9.01  +/- 3.44          7.76 +/- 2.31 SO-3385, 3386     05/01/01       Gr. Beta     24.63   +/- 3.15       28.17  +/- 3.12         26.40 +/- 2.22 SO-3385, 3386     05/01/01       K-40         19.17   +/- 1.08       17.94  +/- 0.76         18.56 +/- 0.66 cl-4068, 4069     05/01/01       K-40           1.09  +/- 0.27        1.13  +/- 0.23          1.11 +/- 0.18 MI-3475, 3476     05/02/01       Gr. Beta   1297.10   +/- 114.60   1433.60  +/- 156.60     1365.35 +/- 97.03 WW-3545, 3546     05/02/01       Gr. Beta       1.57  +/- 0.55        1.36  +/- 0.53          1.47 +/- 0.38 MI-3681, 3682     05/06/01       K-40       1417.20   +/- 125.70   1496.20  +/- 124.50     1456.70 +/- 88.46 SW-3702, 3703     05/08/01       Gr. Alpha     4.51   +/- 1.66        3.22  +/- 1.55          3.87 +/- 1.13 SW-3702, 3703     05/08/01       Gr. Beta      8.74   +/- 1.36        7.11  +/- 1.38          7.93 +/- 0.97 BS-4021, 4022     05/09/01       Cs-1 37     224.30   +/- 30.20     205.90  +/- 43.00       215.10 +/- 26.27 BS-4021, 4022     05/09/01       H-3         842.00   +/- 47.00     860.00  +/- 48.00       851.00 +/- 33.59 BS-4021, 4022     05/09/01       K-40      21117.00   +/- 953.00  21629.00  +/- 1357.00   21373.00 +/- 829.10 BS-4021, 4022     05/09/01       PU-238       80.30   +/- 36.50      59.50  +/- 22.00        69.90 +/- 21.31 BS-4021. 4022     05/09/01       PU-239/40    49.40   +/- 31.80      41.10  +/- 19.60        45.25 +/- 18.68 BS-4021. 4022     05/09/01       Ra-226     7436.00   +/- 577.90   9126.00  +/- 751.90     8281.00 +/- 474.16 BS-4021, 4022     05/09/01       Sr-90        10.60   +/- 2.71       16.80  +/- 3.22         13.70 +/- 2.10 F-3813, 3814      05/10/01       K-40          2.10   +/-0.17         2.30  +/- 0.26          2.20 +/- 0.16 G-4158, 4159      05/23/01       Be-7          0.37   +/-0.13         0.41  +/- 0.14          0.39 +/- 0.10 SO-4179, 4180     05/23/01      Ac-228         0.45   +/-0.13         0.52  +/- 0.14          0.49 +/- 0.10 SO-4179, 4180    05/23/01        Bi-214        0.31   + 0.06        0.41  +/- 0.06          0.36 +/- 0.04 SO-4179, 4180    05/23/01        Cs-137        0.46   +/- 0.05        0.47  +/- 0.04          0.47 +/- 0.03 SO-4179, 4180     05/23/01       Gr. Beta     26.65   +/- 2.63       24.68  +/- 2.52         25.67 +/- 1.82 SO-4179, 4180    05/23/01        K-40         16.35   +/- 0.86       16.05  +/- 0.82         16.20 +/- 0.59 SO-4179, 4180    05/23/01        Pb-212        0.35   +/- 0.04        0.43  +/- 0.05          0.39 +/- 0.03 SO-4179, 4180    05/23/01        Ra-226        0.56   +/- 0.98        1.03  +/- 0.31          0.79 +/- 0.51 SO-4179, 4180    05/23/01       TI-208         0.14   +/- 0.03        0.17  +/- 0.03          0.15 +/- 0.02 BS-4233, 4234    05/23/01        Cs-1 37        0.03  +/- 0.01        0.03  +/- 0.02          0.03 +/- 0.01 BS-4233, 4234    05/23/01        K-40           8.18  +/- 0.48        7.80  +/- 0.58          7.99 +/- 0.38 SWU-4376, 4377   05/29/01        Gr. Beta       2.58  +/- 0.55        2.94  +/- 0.58          2.76 +/- 0.40 DW-4449, 4450    05/29/01        Gr. Beta      2.83   +/- 0.55        3.74  +/- 0.65          3.29 +/- 0.43 DW-4397, 4398    05/30/01        Gr. Beta       9.13  +/- 1.26       10.20  +/- 1.34          9.66 +/- 0.92 MI-4114, 4115    05/31/01        K-40       1325.90   +/- 118.80   1394.70  +/- 133.10     1360.30 +/- 89.20 F-4284, 4285     05/31/01        K-40          2.23   + 0.32        2.12  +/- 0.35          2.18 +/- 0.24 DW-4326, 4327    06/02/01        Gr. Beta      2.60   +/- 0.97        1.47  +/- 0.83          2.04 +/- 0.64 MI-4470, 4471    06/04/01        K-40       1514.50   +/- 116.60   1456.80  +/- 130.90     1485.65 +/- 87.65 SW-4493, 4494    06/04/01        Gr. Beta      4.05   +/- 1.23        4.64  +/- 1.32          4.35 +/- 0.90 A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Analysis      First Result      Second Result            Result Lab Code          Date 06/06/01       Co-60       112.00 +/- 24.30       84.50 +/- 8.70         98.25 +/- 12.91 BS-4725, 4726                                                   3094.80 +/- 35.30      3088.95 +/- 53.07 06/06/01       Cs-137     3083.10 +/- 100.10 BS-4725, 4726                                                   8083.80 +/- 225.1Q     8113.75 +/- 339.40 06/06/01       K-40       8143.70 +/- 640.40 BS-4725, 4726                                                   1363.90 +/- 73.40      1363.05 +/- 51.34 06/111/01      K-40       1362.20 +/- 71.80 MI-4775, 4776                                                   1046.80 +/- 125.20     1110.15 +/- 89.92 06/15/01       H-3        1173.50 +/- 129.10 WW-5110, 5111                                                      1.14 +/- 0.39          1.02 +/- 0.21 06/20101       Be-7           0.89 +/- 0.17 G-5085, 5086                                                       5.22 +/- 0.70          5.17 +/- 0.40 06/20101       K-40           5.13 +/- 0.39 G-5085, 5086                                                    1406.20 +/- 123.80     1467.95 +/- 87.15 06/26/01       K-40       1529.70 +/- 122.70 MI-5259, 5260                                                      1.71 +/- 0.44          1.70 +/- 0.30 06/26/01       Sr-90          1.69 +/- 0.42 MI-5259, 5260                                                       1.91 +/- 0.52         2.25 +/- 0.37 06/26/01       Gr. Beta       2.59 +/- 0.54 SWU-5422, 5423                                                     8.88 +/- 0.26          8.50 +/- 0.18 06127/01       Gr. Beta       8.12 +/- 0.24 VE-5401, 5402                                                      6.26 + 0.65          6.40 +/- 0.42 06/27/01       K-40           6.55 +/- 0.52 VE-5401, 5402                                                      0.08 +/- 0.01          0.08 +/- 0.01 06/27101       Be-7           0.08 +/- 0.01 AP-5830, 5831                                                       5.96 + 1.56         5.70 +/- 1.15 06/28/01       Gr. Beta       5.43 +/- 1.70 SW-5557, 5558                                                      0.07 +/- 0.02         0.07 +/- 0.01 06/28/01       Be-7           0.07 +/- 0.02 AP-5851, 5852                                                      4.18 +/- 1.34          4.47 +/- 0.96 06/29/01       Gr. Beta       4.75 +/- 1.38 SW-5636, 5637                                                      2.18 + 0.34         2.30 +/- 0.25 06/30101       Gr. Beta       2.42 +/- 0.37 LW-5681, 5682                                                      0.97 + 0.54          0.98 +/- 0.31 07/02/01       Be-7            0.99 +/- 0.29 G-5535, 5536                                                       7.72 +/-0.12           7.67 +/- 0.08 07/02/01       Gr. Beta        7.62 +/- 0.12 G-5535, 5536                                                       7.64 +/- 0.93          7.45 +/- 0.69 07/02/01       K-40            7.26 +/- 1.03 G-5535, 5536                                                       0.07 +/-0.02           0.08 +/- 0.01 07/02/01       Be-7           0.08 +/- 0.02 AP-5788, 5789                                                      0.08 +/- 0.02          0.07 +/- 0.01 07/02101       Be-7           0.07 +/- 0.02 AP-5872, 5873                                                                           0.08 +/- 0.01 0.08 +/- 0.02        0.08 +/- 0.01 AP-5893, 5894     07/02/01       Be-7 0.06 +/- 0.01          0.06 +/- 0.01 07/03/01       Be-7           0.07 +/- 0.02 AP-5809, 5810                                                      2.89 +/- 0.60          2.92 +/- 0.46 07/10/01       Gr. Alpha      2.95 +/- 0.70 SW-5724, 5725                                                                           8.50 +/- 0.48 8.79 +/- 0.71        8.21 +/- 0.65 SW-5724, 5725     07/10/01       Gr. Beta 0.61 + 0.26          0.70 +/- 0.20 07/10/01       1-131          0.79 +/- 0.31 SW-5767, 5768                                                      3.15 +/- 0.58          3.11 +/- 0.43 07/11/01       Gr. Beta       3.06 +/- 0.64 LW-5920, 5921                                                      0.32 +/- 0.04          0.31 +/- 0.03 07/19/01       Cs-137         0.30 +/- 0.05 SO-6172, 6173                                                                          17.88 +/- 0.68 K-40          18.20 +/- 1.08       17.55 +/- 0.82 SO-6172, 6173     07/19/01                                                              0.04 +/- 0.01 0.03 +/- 0.01        0.05 +/- 0.02 SO-6172, 6173     07/19/01       Sr-90 986.31 +/- 91.91       976.33 +/- 61.68 07/24/01       K-40        966.35 +/- 82.28 MI-6353, 6354                                                      0.81 +/- 0.17          0.70 +/- 0.12 07/24101       1-131          0.58 +/- 0.16 SW-6376, 6377                                                       2.49 +/- 0.05         2.51 +/- 0.03 07/25/01       Gr. Beta       2.52 +/- 0.05 VE-6424, 6425                                                       3.12 +/- 0.37         3.08 +/- 0.23 07/25/01       K-40           3.04 +/- 0.26 VE-6424, 6425                                                                        1424.80 +/- 106.51 K-40       1407.40 +/- 97.10     1442.20 +/- 189.60 MI-6445, 6446    07/25/01                                                               2.70 +/- 0.39 2.61 +/- 0.57         2.79 +/- 0.54 LW-6489, 6490    07/25/01       Gr. Beta 1375.50 +/- 129.60     1437.05 +/- 86.27 07/25/01       K-40       1498.60 +/- 113.90 MI-6533, 6534                                                                           2.19 +/- 0.43 2.01 +/- 0.59        2.36 +/- 0.63 DW-6835, 6836    07130/01       Gr. Beta 1417.30 +/- 176.50     1355.80 +/- 106.35 08101/01       K-40       1294.30 +/- 118.70 MI-6693, 6694                                                      1.23 +/- 0.41          1.35 +/- 0.29 08/01/01       Sr-90           1.47 +/- 0.42 MI-6693, 6694                                                      5.80 +/- 0.69          5.64 +/- 0.49 08/06/01       Gr. Beta        5.49 +/- 0.69 WW-6952, 6953                                                                       1573.25 +/- 128.63 K-40      1613.80 +/- 218.50    1532.70 +/- 135.80 MI-6906, 6907     08/07101                                                              4.25 +/- 0.34 4.21 +/- 0.24        4.29 +/- 0.64 VE-6973, 6974     08/07/01       K-40 A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code          Date          Analysis     First Result      Second Result             Result 08/07/01      Gr. Beta      2.20 +/- 0.48         2.12 +/- 0.42          2.16 +/- 0.32 LW-7851, 7852 K-40     1453.80 +/- 148.10    1285.30 +/- 190.50     1369.55 +/- 120.65 MI-7001, 7002     08/08/01 K-40     1217.30 +/- 80.83     1218.30 +/- 99.13-     1217.80 +/- 63.95 MI-7073, 7074     08/14/01 Gr. Beta     2.77 +/- 0.53         3.60 +/- 0.59          3.19 +/- 0.39 LW-7145, 7146     08/15/01 K-40     1192.90 +/- 95.40     1388.90 +/- 132.70     1290.90 +/- 81.72 MI-7221, 7222     08/20/01 Sr-90        2.10 +/- 0.48         1.72 +/- 0.47          1.91 +/- 0.34 MI-7221, 7222     08/20/01 Gr. Beta    17.51 +/- 3.06        20.36 +/- 3.31         18.93 +/- 2.25 SWU-7527, 7528    08/28/01 K-40         2.12 +/- 0.47         2.47 +/- 0.34          2.30 +/- 0.29 VE-7485, 7486     08/29/01 Gr. Beta     4.25 +/- 1.18         4.13 +/- 1.12          4.19 +/- 0.81 DW-7506, 7507     08/31/01 K-40     1340.10 +/- 111.10    1290.80 +/- 116.50     1315.45 +/- 80.49 MI-7622, 7623     09/04/01 K-40     1408.10 +/- 102.70    1396.90 +/- 114.30     1402.50 +/- 76.83 MI-7664, 7665     09/05/01 K-40     1416.40 +/- 192.30    1318.00 +/- 155.50     1367.20 +/- 123.65 MI-7876, 7877     09/11/01 Be-7         1.27 +/- 0.21         1.25 +/- 0.25          1.26 +/- 0.16 G-7960, 7961      09/12/01 K-40         5.21 +/- 0.57         5.70 +/- 0.63          5.45 +/- 0.43 G-7960, 7961      09/12/01 Cs-137       0.06 +/- 0.02         0.04 +/- 0.02          0.05 +/- 0.01 F-8011, 8012      09/14/01 Gr. Beta     3.68 +/- 0.12         3.50 +/- 0.11          3.59 +/- 0.08 F-8011, 8012      09/14/01 K-40         3.47 +/- 0.49         3.38 +/- 0.47          3.43 +/- 0.34 F-8011, 8012      09/14/01 K-40     1551.70 +/- 118.00    1489.90 +/- 123.60     1520.80 +/- 85.44 MI-8149, 8150     09/19/01 K-40     1550.30 +/- 170.60    1368.10 +/- 126.70     1459.20 +/- 106.25 MI-8343, 8344     09/25/01 Gr. Beta     3.37 +/- 0.10         3.42 +/- 0.11          3.39 +/- 0.07 VE-8319, 8320     09/26/01 K-40         2.14 +/- 0.46         2.24 +/- 0.37          2.19 +/- 0.29 VE-8319, 8320     09/26/01 Be-7         0.07 +/- 0.02         0.07 +/- 0.01          0.07 +/- 0.01 AP-9069, 9070     09/27/01 Be-7         0.08 +/- 0.02         0.09 +/- 0.03          0.09 +/- 0.02 AP-9566, 9567     09/27/01 Be-7         0.24 +/- 0.10         0.19 +/- 0.10          0.22 +/- 0.07 VE-8700, 8701     10/01/01 K-40         2.03 +/- 0.24         2.03 +/- 0.21          2.03 +/- 0.16 VE-8700, 8701     10/01/01 Sr-90        0.01 +/- 0.00         0.01 +/- 0.00          0.01 +/- 0.00 VE-8700, 8701     10/01/01 Be-7         0.07 +/- 0.01         0.07 +/- 0.00          0.07 +/- 0.01 AP-9048, 9049     10/01/01 Gr. Beta     4.74 +/- 1.06         5.08 +/- 1.21          4.91 +/- 0.80 DW-8636, 8637    10/02/01 Gr. Beta     4.65 +/- 0.58         4.28 +/- 0.54          4.47 +/- 0.40 DW-8615, 8616    10/03/01 Be-7         0.07 +/- 0.01         0.07 +/- 0.01          0.07 +/- 0.01 AP-9090, 9091    10/03/01 Be-7          0.08 +/- 0.02         0.08 +/- 0.02         0.08 +/- 0.01 AP-9166, 9167    10/03/01 Be-7          0.07 +/- 0.01         0.05 +/- 0.01         0.06 +/- 0.01 AP-9187, 9188    10/03/01 Be-7       309.90 +/- 158.80     348.30 +/- 168.10      329.10 +/- 115.62 VE-10562, 10563   10/03/01 10/03/01       K-40     6407.10 +/- 620.70    6057.50 +/- 660.40     6232.30 +/- 453.15 VE-10562, 10563 Gr. Beta      5.08 +/- 1.20         4.74 +/- 1.06         4.91 +/- 0.80 WW-8636, 8637     10/04/01 Gr. Beta      4.28 +/- 0.89         3.40 +/- 0.90          3.84 +/- 0.63 DW-8894, 8895     10/05/01 K-40     1440.70 +/- 46.60     1424.80 +/- 76.40       1432.75 +/- 44.75 MI-9232, 9233     10/16/01 K-40          1.91 +/- 0.22         1.97 +/- 0.39          1.94 +/- 0.22 VE-9518, 9519     10/17/01 H-3        755.90 +/- 102.50     684.70 +/- 99.90       720.30 +/- 71.57 WW-10257, 10258   11/08/01 Be-7         0.68 +/- 0.26         0.99 +/- 0.26          0.84 +/- 0.18 VE-10333, 10334   11/14/01 K-40         6.10 +/- 0.72         5.83 +/- 0.72          5.97 +/- 0.51 VE-10333, 10334   11/14/01 K-40     1428.40 +/- 114.70    1445.50 +/- 129.40     1436.95 +/- 86.46 MI-10588, 10589   11/26/01 Gr. Beta      3.49 +/- 0.91         2.36 +/- 0.76          2.93 +/- 0.60 DW-10688, 10689   11/28/01 H-3       233.90 +/- 90.60      226.30 +/- 90.20       230.10 +/- 63.92 WW-10905, 10906   12/05/01 A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code                 Date             Analysis              First Result             Second Result                         Result SS-10953, 10954          12/05/01         Ac-228                 1.10  +/- 0.25               0.91 + 0.16                      1.00 +/- 0.15 12/05/01         Bi-214                 0.69  +/- 0.08               0.75 +/- 0.08                     0.72  +/- 0.06 SS-10953, 10954 Co-58                  0.21  +/- 0.05               0.18 +/- 0.04                     0.19  +/- 0.03 SS-10953, 10954           12/05/01 12/05/01        Co-60                  0.93  +/- 0.06               0.94 +/- 0.06                     0.93  +/- 0.04 SS-10953,10954 Cs-137                 0.13 +/- 0.03                0.16 +/- 0.03                     0.14  +/- 0.02 SS-10953,10954            12/05/01 12/05/01         K-40                  9.91 +/- 0.83                8.36 +/- 0.80                     9.13  +/- 0.57 SS-1 0953, 10954 12/05/01         Pb-212                0.94 +/- 0.05                0.91 +/- 0.06                     0.92  +/- 0.04 SS-10953, 10954 12105/01         Pb-214                0.83 +/- 0.08                0.82 +/- 0.07                      0.83 +/- 0.05 SS-10953, 10954 12/05/01         Ra-226                1.76 +/- 0.37                 1.67 +/- 0.37                     1.72 +/- 0.26 SS-10953, 10954 12/05/01        TI-208                 0.34 +/- 0.05                0.31 +/- 0.05                      0.32 +/- 0.04 SS-10953, 10954 12/10/01         K-40              1339.80 +/- 128.70           1435.80 +/- 117.30                 1387.80  +/- 87.07 MI-11033, 11034 Sr-90                 1.31 +/- 0.41                 1.38 +/- 0.37                     1.35 +/- 0.28 MI-11033, 11034           12/10/01 Be-7                  0.06 +/- 0.02                 0.06 +/- 0.02                     0.06 +/- 0.01 AP-11888, 11889           12/28/01 Duplicate analyses are performed on every twentieth sample received in-house.        Results are not listed for those analyses with activities that measure below the LLD.
a Results are reported in units of pCi/L, except for elemental potassium (K) in milk (mglL), air filters (pCi/Filter), food products and vegetation (pCi/g), soil and sediments (pCi/kg).
A5-5

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.
Concentrationb Known                Control Type        Date       Analysis          Laboratory result          Activity              Limitsc Lab Code STSO-923d        Soil        01/01/01   Am-241                                                              0 - 2.6 STSO-923         Soil        01/01/01    Co-57              100.2  +/- 3.5            103 +/- 10.3           72.1 - 133.9 STSO-923         Soil        01/01/01    Co-60             1285.1  +/- 5.3           1270 +/- 127.0           889 -1651.0 STSO-923         Soil        01/01/01    Cs-134               81.1 +/- 1.8           91.1 +/- 9.1           63.77 - 118.4 STSO-923         Soil        01/01/01    Cs-137            1210.6  +/- 6.6           1240 +/- 124.0           868-1612.0 STSO-923        Soil        01/01/01    K-40               732.6  +/- 21.2           652 +/- 65.2          456.4 - 847.6 STSO-923        Soil        01/01/01    Mn-54              212.6  +/- 6.7            203 +/- 20.3          142.1 - 263.9 STSO-923        Soil        01/01/01    Pu-238             110.7  +/- 7.2             115 +/- 11.5          80.5 -149.5 STSO-923        Soil        01/01/01    Pu-239/40            79.6 +/- 5.9            83.4 +/- 8.3          58.38 - 108.4 STSO-923        Soil        01/01/01    Sr-90              159.8  +/- 9.5            209 +/- 20.9          146.3 - 271.7 STSO-923        Soil        01/01/01    U-233/4                45  +/- 3.9             60 +/- 6.0             42 - 78.0 STSO-923        Soil        01/01/01    U-238               165.6  +/- 7.4            191 +/- 19.1         133.7 - 248.3 STSO-923        Soil        01/01/01    Zn-65              428.5   +/- 10.9           382 +/- 38.2         267.4 - 496.6 a Results obtained by Environmental, Inc. ,Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b All results are in Bq/kg or Bq/L as requested by the Department of Energy.
CMAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP.
d Included in the testing series as a "false positive". No activity expected. Result of analysis; < 0.8 Bq/L.
A6-1

(EML)a.
TABLE A-7. Environmental Measurements Laboratory Quality Assessment Program Concentrationb EML           Control Resultc          Limitsd Lab Code      Type        Date       Analysis      Laboratory results Concentrationb Ac-228           45.60 +/- 4.00                 42.70    0.80 -1.50 STSO-904      Soil        03/01/01                                                          0.63 - 2.64 14.40 +/- 0.50                14.80 Soil        03101/01   Am-241 STSO-904                                                                           42.00    0.45-1.23 Bi-212            53.20 +/- 3.10 STSO-904e     Soil        03/01/01                                                          0.78 - 1.50 42.10 +/- 7.70                32.60 Soil        03/01/01   Bi-214 STSO-904                                                                       1740.00      0.80 -1.29 03/01/01   Cs-137         1772.60 +/- 79.80 STSO-904      Soil                                                                          0.80 -1.37 K-40            583.80 +/- 52.60              468.00 STSO-904      Soil        03/01-/01                                                41.50    0.74 -1.36 03/01/01   Pb-212            46.60 +/- 8.50 STSO-904      Soil                                                                          0.76 - 1.53 45.30 +/- 8.60                34.30 STSO-904      Soil        03/01101   Pb-214 26.00 +/- 0.80                25.60    0.71 - 1.33 Soil        03/01/01   Pu-239/40 STSO-904                                                                           69.00    0.61 - 3.91 Sr-90             55.60 +/- 2.20 STSO-904      Soil        03101/01                                                          0.76-1.48 2.15 +/- 0.14                  1.67 Water       03/01/01   Am-241 STW-905                                                                            98.20   0.80 - 1.20 Co-60             97.00 +/- 0.80 STW-905      Water       03/01/01                                                          0.80 - 1.24 70.10 +/- 4.00                 73.00 Water       03/01/01   Cs-137 STW-905                                                                            79.30   0.74 - 2.29 H-3               76.50 +/- 5.50 STW-905      Water       03101/01                                                          0.74 - 1.22 1.69 +/- 0.07                  1.58 STW-905      Water       03/01/01    Pu-238 1.69 +/- 0.07                  1.64   0.75 - 1.26 STW-905      Water        03/01/01   Pu-239/40 3.85 +/- 0.13                  4.40   0.64 - 1.50 STW-905      Water        03/01/01   Sr-90 1.04   0.80 - 1.40 03/01/01   U-233/4            0.90 +/- 0.05 STW-905      Water                                                                   1.04   0.80 -1.29 U-238              0.88 +/- 0.05 STW-905      Water        03/01/01                                                          0.58 -1.26 1724.60 +/- 141.70             1900.00 STW-906      Water        03/01/01   Gr. Alpha 1297.00     0.56-1.50 Water        03/01/01   Gr. Beta      1246.40 +/- 31.10 STW-906                                                                              0.49   0.69 - 2.40 03/01/01   Am-241             0.47 +/- 0.04 STAP-907     Air Filter                                                             19.44   0.79 -1.30 03/01/01   Co-60             20.11 +/- 0.16 STAP-907      Air Filter                                                                    0.74 -1.21 2.71 +/- 0.15                  2.83 STAP-907      Air Filter  03/01/01   Cs-134 9.86 +/- 0.23                  8.76   0.78 - 1.35 STAP-907      Air Filter  03/01/01   Cs-1 37 7.25 +/- 0.22                  6.52   0.80 - 1.36 STAP-907      Air Filter  03/01/01   Mn-54 0.23 +/- 0.03                 0.22   0.66 -1.35 STAP-907      Air Filter  03/01/01   Pu-238 0.12 +/- 0.02                  0.14  0.69 -1.29 STAP-907     Air Filter  03/01/01   Pu-239/40 7.41 +/- 0.15                  7.10  0.55 - 2.05 STAP-907     Air Filter  03/01/01   Sr-90 0.05 +/- 0.01                  0.05  0.80-1.92 STAP-907     Air Filter  03/01/01   U-233/4 0.05 +/- 0.01                  0.05  0.80 -1.59 STAP-907     Air Filter  03/01101   U-238 2.66 +/- 0.02                  3.97  0.57 -1.47 STAP-908     Air Filter  03/01/01   Gr. Alpha 2.30 +/- 0.02                  2.58   0.76 -1.52 STAP-908     Air Filter  03/01/01    Gr. Beta 6.10 +/- 0.20                  6.17   0.72 - 2.34 STVE-909     Vegetation  03/01101   Am-241 3.50 +/- 0.50                  3.69   0.61 -1.61 STVE-909     Vegetation   03/01/01   Cm-244 28.50 +/- 2.10                 30.40    0.75 - 1.51 STVE-909     Vegetation   03/01/01   Co-60 795.50 +/- 76.40              842.00     0.80 -1.37 STVE-909     Vegetation   03/01/01   Cs-1 37 592.60 +/- 42.50              603.00     0.78 -1.43 STVE-909     Vegetation   03/01/01   K-40 8.50 +/- 0.60                  9.58   0.67 -1.49 STVE-909     Vegetation   03/01/01   Pu-239/40 1330.00     0.52 - 1.23 Vegetation   03/01/01   Sr-90          1239.60 +/- 130.00 STVE-909                                                                             0.76   0.76-1.48 09/04/01   Am-241             0.70 +/- 0.10 STW-925       Water                                                                         0.80 - 1.20 206.70 +/- 4.70                209.00 STW-925       Water       09/04/01   Co-60 45.13   0.80 -1.24 09/04/01   Cs-137            46.60 +/- 0.80 STW-925       Water                                                                         0.74 - 2.29 254.10 +/- 3.60                207.00 STW-925       Water       09/04/01   H-3 A7-1

I HI TABLE A-7. Environmental Measurements Laboratory Quality Assessment Program (EML)a.
Concentrationb EML               Control Lab Code            Type          Date           Analysis         Laboratory results         Resultc              Limitsd STW-925             Water        09/04/01        Ni-63               50.90   +/- 3.00               45.25         0.70 - 1.30 STW-925             Water        09/04/01        Pu-238                1.10  +/- 0.10                1.09         0.74 -1.22 STW-925             Water        09/04/01        Pu-239/40             1.60  +/- 0.10                1.63         0.75-1.26 STW-925             Water        09/04/01        Sr-90                 4.10  +/- 0.30                3.73         0.64 - 1.50 STW-925             Water        09/04/01        Uranium               2.20  +/- 0.20                2.37         0.73 - 1.37 STW-926             Water        09/04/01        Gr. Alpha         1220.00   +/- 32.00           1150.00          0.58 -1.26 STW-926            Water         09/04/01        Gr. Beta          8461.00   +/- 206.00          7970.00          0.56 - 1.50 STSO-927            Soil         09/04/01        Ac-228              68.10   +/- 1.40               59.57         0.80 - 1.50 STSO-927            Soil         09/04/01        Am-241                5.20  +/- 1.30                4.43         0.63 -2.64 STSO-927           Soil          09/04/01        Bi-212              65.10   +/- 1.60               62.07         0.45 - 1.23 STSO-927             Soil         09/04/01        Bi-214              47.30   +/- 4.70               36.90         0.78 -1.50 STSO-927            Soil         09/04/01        Cs-1 37            659.20   +/- 10.80            612.33          0.80 - 1.29 STSO-927            Soil         09/04/01        K-40               737.70   +/- 16.60            623.33          0.80 - 1.37 STSO-927            Soil          09/04/01        Pb-212              64.70   +/- 3.80               58.33         0.74 - 1.36 STSO-927            Soil          09/04/01        Pb-214              53.70   +/- 7.70               39.67         0.76 - 1.53 STSO-927            Soil          09/04/01        Pu-239/40             9.30  +/- 2.90                8.95         0.71 -1.33 STSO-927           Soil          09/04/01        Sr-90               27.40   +/- 6.30               30.60         0.61 - 3.91 STSO-927            Soil          09/04/01        Uranium            155.60   +/- 7.80              194.23         0.62 - 1.35 STVE-928            Vegetation    09/04/01        Am-241                7.00  +/- 0.30                6.92         0.72 - 2.34 STVE-928            Vegetation    09/04/01        Cm-244                4.30  +/- 0.80                4.31         0.61 - 1.61 STVE-928            Vegetation    09/04/01        Co-60               40.20   +/- 0.90               35.30         0.75 - 1.51 STVE-928            Vegetation    09/04/01        Cs-137            1184.00   +/- 2.80            1030.00          0.80 -1.37 STVE-928            Vegetation    09/04/01        K-40              1023.00   +/- 44.10            898.67          0.78 - 1,43 STVE-928            Vegetation    09/04/01        Pu-239/40             8.90  +/- 1.40               11.02         0.67 -1.49 STVE-928            Vegetation    09104/01        Sr-90             1364.00   +/- 18.40           1612.80          0.52 - 1.23 STAP-929            Air Filter    09/04/01        Am-241                0.09  +/- 30.00               0.09         0.69 -2.40 STAP-929            Air Filter    09/04/01        Co-60               16.90   +/- 0.30               17.50         0.79 - 1.30 STAP-929            Air Filter    09/04/01        Cs-134              11.80   +/- 0.20               12.95         0.74 - 1.21 STAP-929            Air Filter    09/04/01        Cs-137              18.30   +/- 0.30               17.10         0.78 - 1.35 STAP-929            Air Filter    09/04/01        Mn-54               85.40   +/- 1.30               81.15         0.80 -1.36 STAP-929            Air Filter    09/04/01        Pu-238                0.05  +/- 0.01                0.07         0.66 - 1.35 STAP-929            Air Filter    09/04/01        Pu-239/40             0.22  +/- 0.02                0.23         0.69 - 1.29 STAP-929            Air Filter    09/04/01        Sr-90                 3.11  +/- 0.06                3.48         0.55 - 2.05 STAP-929            Air Filter    09/04/01        Uranium               0.24  +/- 0.05                0.22         0.80 - 2.54 STAP-930            Air Filter    09/04/01        Gr. Alpha             6.30  +/- 0.10                5.36         0.57 - 1.47 STAP-930            Air Filter    09/04/01        Gr. Beta            13.80   +/- 0.10               12.77         0.76 -1.52 SThe   Environmental Measurements Laboratory provides the following nuclear species Air Filters, Soil, Vegetation and Water.
b Results are reported in Bq/L with the following exceptions: Air Filter results are reported in Bq/Filter, Soil results are reported in Bq/Kg, Vegetation results are reported in Bq/Kg.
c The EML result listed is the mean of replicate determinations for each nuclide+/-the standard error of the mean.
0 Control limits are reported by EML as the ratio of Reported Value I EML value.
e Naturally-occurring radium and thorium daughters are present in the shield background, and a probable cause of the higher bias seen for isotopes of lead and bismuth.
A7-2

APPENDIX B DATA REPORTING CONVENTIONS B-1

Data Reporting 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:                     x*s where:            x = value of the measurement; s = 2s counting uncertainty (corresponding to the 95% confidence level).
In cases where the activity is less than the lower limit of detection L, it is reported as: <L, where L = the lower limit of detection based on 4.66s uncertainty for a background sample.
3.0. Duplicate analyses 3.1     Individual results:  For two analysis results; xi +/- sl and x2 +/- S2 Reported result:     x +/- s; where x = (1/2) (xl + x2) and s = (1/2)        s1 +S2 3.2. Individual results:        <Li,   <L2         Reported result: <L, where L = lower of Li and L2 3.3. Individual results:        x +/- s, <L          Reported result:        x +/- s if x > L; <L otherwise.
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 x and standard deviation s of a set of n numbers x1 , x2 ...
xn are defined as follows:
x =*
* x                              n-n 4.2 Values below the highest lower limit of detection are not included in the average.
4.3 If all 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 number following those to be retained is less than 5, the number is dropped, and the retained number s are kept unchanged. As an example, 11.443 is rounded off to 11.44.
4.5.2. If the number following those to be retained is equal to or greater than 5, the number is dropped and the last retained number is raised by 1. As an example, 11.445 is rounded off to 11.45.
B-2

APPENDIX C Maximum Permissible Concentrations of Radioactivity in Air and Water Above Background in Unrestricted Areas C-1

Table C-1. Maximum permissible concentrations of radioactivity in air and water above natural background in unrestricted areasa.
3                                                        Water (pCiIL)
Air (pCi/m )
I x 103                                                   Strontium-89                 8,000 Gross alpha Strontium-90                    500 Gross beta         1 2.8 x 10-1                                                Cesium-137                    1,000 Iodine-1 3 1 b Barium-140                   8,000 Iodine-131                    1,000 Potassium-40c                 4,000 Gross alpha                        2 Gross beta                        10 Tritium                     1 x 106 a Taken from Table 2 of Appendix B to Code of Federal Regulations Title 10, Part 20, and appropriate footnotes.
Concentrations may be averaged over a period not greater than one year.
b Value adjusted by a factor of 700 to reduce the dose resulting from the air-grass-cow-milk-child pathway.
C A natural radionuclide.
C-2

APPENDIX D

==SUMMARY==
OF THE LAND USE CENSUS D-1

Appendix D Summary of the Land Use Census The Duane Arnold Energy Land Use Census for 2001 was completed during the fourth week of September 2001. All milk animals and gardens greater than 500 square feet were identified within three miles for each of the 16 meteorological sectors. If none were identified within the three mile range, additional surveys were performed out to a distance of five miles. The Cedar River was surveyed by boat on July 11th, 2001 for water use downstream of the DAEC to Cedar Rapids.
There were 171 gardens found during the performance of the 2001 Census. This number exceeds the number of gardens found in the 2000 survey by 2. This difference can be attributed to the removal of 6 gardens and the addition of 8 new gardens.
There have been several changes in the milk animal locations in the past year. The Andrews have discontinued milk production at their farm WNW of the plant on Lewis Bottoms Road. Likewise, the Schultes will no longer be supplying milk for the Rad.
Environmental Monitoring Program. The Schulte Farm is located near Norway, IA 21 miles SSW of the plant and serves as a control location for milk samples. The control station has subsequently been replaced with the McNulty Farm 17.3 miles to the SW.
Steps are being taken to compensate for the loss of the Andrews.
The locations of the nearest resident for each sector remained the same in 2000.
31 new homes were built or were under construction within three miles of the DAEC, compared to the 16 new homes identified in 2000. Most of the new houses built were located in the sectors between the plant and Cedar Rapids (SSE and ESE). A listing of the newly identified homes is attached.
The Cedar River survey revealed no new withdrawals of river water compared to previous surveys. Irrigation of the strawberry farm in Palo and fishing remain the only food pathway uses of river water between the DAEC and Cedar Rapids.
As a result of this census, adjustments were made to the MIDAS dose projection software model for the affected changes in receptor distances.
Pursuant to plant Environmental Sampling Procedure ESP 4.4, no changes were observed offsite that could adversely affect the safe operation of the DAEC or that would warrant a UFSAR update such as new gas pipelines, toxic gas installations or airfield strips.
D-2

APPENDIX E ANNUAL RADIATION DOSE ASSESSMENT E-1

Appendix E Annual Radiation Dose Assessment The annual offsite radiation dose to a member of the public was determined by assessment of environmental dosimeter results and by calculations based on monitored effluent releases.
Section A.             Dose Contribution from Direct Radiation Direct radiation dose from the operation of the DAEC was reported by TLDs placed at locations in the surrounding environment as described in the Offsite Dose Assessment Manual (ODAM).
: 1. Pre-operational and 2001 TLD results were compared using a paired difference test.
No significant differences in the TLD populations were observed for the 0.5 mile and one mile TLD populations using a confidence level of 99%.
: 2. As stated in Part 1, page 8 of this report, no plant effect was indicated by the TLDs when dose results were compared to the estimated average natural background for Middle America.
Section B.             Estimated Offsite Dose from Effluent Releases The contribution of dose to a member of the public most likely to be exposed from effluent releases was calculated by the Meteorological Information and Dose Assessment System (MIDAS) computer program in accordance with ODAM. The calculation methods follow those prescribed by Reg. Guide 1.109. Because there were no nuclides detected in the environment at or beyond the site boundary that were due to the operation of the DAEC, no comparison of calculated dose from stack releases and dose calculated from environmental contamination was performed.
Results of the MIDAS dose calculations are discussed below and are shown in tabular form on page E-3 1.) There were no releases of radioactive material to liquid effluents in 2001.
2.) The maximum dose to air at the site boundary from noble gases released was 1.20E-03 mrad from gamma radiation at 481 meters SSE.
3.) The maximum dose to air at the site boundary from noble gases released was 1.08E-02 mrad beta radiation at 936 meters NW.
E-2

4.) The whole body dose equivalent to the maximally exposed individual from noble gases was 9.87E-04 mrem, at 805 meters West.
5.) The skin dose equivalent to the maximally exposed individual from noble gases was 1.OOE-03 mrem, at 805 meters West.
6.) The maximally exposed organ due to iodines and particulates with half-lives greater than eight days was the liver of a child at 805 meters West, with an estimated dose equivalent of 5.08E-03 mrem.

== Conclusion:==

No measurable dose due to the operation of the DAEC was detected by environmental TLDs in 2001. The calculated doses are below the regulatory limits stated in Appendix I to 10 CFR 50 and in 40 CFR 190.
Estimated Maximum Offsite Individual Doses for 2001 Type                   Age      Distance     Direction    Dose or Dose     Annual 10 CFR Group       (meters)                   Equivalent      50, Appendix I (mrem)             Limit Direct Radiation                                                           None (as measured by TLDs)
Liquid Releases                                                            None Noble Gas Gamma Air Dose                              481         SSE        1.20E-03 mrad         10 mrad Beta Air Dose                               936         NW         1.08E-05 mrad         20 mrad Whole Body                   All            805          W        9.86E-07 mrem*
Skin                        All            805          W         1.OOE-03 mrad
* Particulates & lodines Organ Dose                  Child -        805          W        5.08E-03 mrem          15 mrem LIVER
* No Appendix I limit but is used to determine compliance with 40 CFR 190 limits of 25 mrem whole body and 75 mrem thyroid.
E-3

         - Environmental,                   Inc.
Midwest Laboratory an Allegheny Technologies Co.
700 Landwehr Road
* Northbrook, IL 60062-2310 ph . (847) 564-0700
* fax (847) 564-4517
                                          -              IES UTILITIES, INC.
CEDAR RAPIDS, IOWA DUANE ARNOLD ENERGY CENTER CEDAR RAPIDS, IOWA Docket No. 50-331 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM (REMP)
ANNUAL REPORT - PART II DATA TABULATIONS AND ANALYSES January 1 to December 31, 2001 Prepared and submitted by ENVIRONMENTAL, Inc.
Midwest Laboratory Project No. 8001 Reviewed and Approved Lro~ia b            -roaoMgS.
L.jato&#xfd;, nager

TABLE OF CONTENTS Section                                                                                                                                PaQe List of Tables ............................................................................................................... iii 1.0   INTRO DUCTIO N ....................................................................................................             v 2.0   LISTING OF MISSED SAM PLES ............................................................................                         vi 3.0   DATA TABLES ............................................................................................................       vii ii

LIST OF TABLES No.                                                       Title                                                                      Paqe 1   Airborne particulates collected at Location D-l, (Cedar Rapids), analysis for g ro ss be ta ....................................................................................................... 1-1 2   Airborne particulates and iodine collected at Location D-2 (Marion), analysis for gross beta and iodine-131 ..........................................................................                  2-1 3   Airborne particulates collected at Location D-3 (Hiawatha), analysis for g ro ss beta ........................................................................................................ 3 -1 4   Airborne particulates and iodine collected at Location D-5 (Palo), analysis for gross beta and iodine-131 ...............................................................................                 4-1 5   Airborne particulates collected at Location D-6 (Center Point), analysis for g ro ss beta .......................................................................................................      5 -1 6   Airborne particulates and iodine collected at Location D-7, (Shellsburg),
analysis for gross beta and iodine-131 ............................................................                       6-1 7   Airborne particulates and iodine collected at Location D-8 (Urbana), analysis for gross beta and iodine-131 ..........................................................................                  7-1 8   Airborne particulates collected at Location D-10 (Atkins), analysis for gross b eta .................................................................................................................. 8-1 9   Airborne particulates and iodine collected at Location D-11 (Toddsville),
analysis for gross beta and iodine-131 ............................................................                       9-1 10   Airborne particulates collected at Location D-13 (Alburnett), analysis for g ross beta .....................................................................................................        10-1 11   Airborne particulates and iodine collected at Location D-15 (on-site, north),
analysis for gross beta and iodine-131 ..........................................................                        11-1 12   Airborne particulates collected at Location D-16 (on-site, south), analysis for g ross beta ......................................................................................................       12 -1 13   Airborne particulate samples, quarterly composites of weekly samples, analysis for gamma-emitting isotopes ..........................................................                          13-1 14   Ambient gamma radiation (TLD), quarterly exposure ................................................                               14-1 15   Milk samples, analysis for iodine-131 and gamma emitting isotopes .........................                                      15-1 16   Ground water samples, analysis for gross beta and tritium .......................................                                16-1 17   Vegetation samples (broadleaf), analysis for iodine-131 and gamma em itting isotopes ............................................................................................          17-1 iii

LIST OF TABLES (continued)
No.                                                       Title                                                                      Paqe 18  Vegetation samples (hay and grain), analysis for gamma-emitting isotopes .............. 18-1 19  Surface water samples, analysis for iodine-131 and gamma-emitting isoto p es .......................................................................................................... 19 -1 20  Surface water samples, analysis for potassium-40, iodine-131 and gamma em itting isotopes .............................................................................................        20-1 21  Surface water samples, quarterly composites of monthly samples, analysis fo r tritiu m ......................................................................................................... 2 1-1 22  Fish samples, analysis for gamma-emitting isotopes .................................................                             22-1 23  River sediment samples, analysis for gamma-emitting isotopes ................................                                    23-1 24  Precipitation samples, analysis for gamma-emitting isotopes .....................................                                24-1 25  Precipitation samples, quarterly composites of monthly samples, analysis for tritiu m .............................................................................................................. 2 5 -1 26  Meat samples, analysis for gamma-emitting isotopes .................................................                             26-1 27  Soil samples, analysis for strontium-90 and gamma-emitting isotopes ...................... 27-1 iv

==1.0 INTRODUCTION==

The following constitutes a supplement to the Annual Report for the Radiological Environmental Monitoring Program conducted at the Duane Arnold Energy Center, Palo, Iowa in 2001. Results of completed analyses are presented in the attached tables.
For information regarding sampling locations, type and frequency of collection, and sample codes, please refer to Part-I, Tables 5.3 - 5.5 and Figures 5.1 and 5.2.
V

2.0 LISTING OF MISSED SAMPLES Sample                                                 Collection Date Location(s)            or Period                   Comments Type             Analysis 12-04-01      Sample not ampilable, goats sold; Ml          1-131, Gamma              D-93                             location dropped from program.
D-101              01-09-01      Sample not available; goat dry.
Ml          1-131, Gamma
_-101            02-06-01       Sample not available; goat dry.
Ml          1-131, Gamrr._
D-101              03-06-01       Sample not available; goat dry.
Ml          1-131, Gamma D-101              04-03-01       Sample not available; goat dry.
MI          1-131, Gamma D-101              12-04-01       Sample not received; goat dry.
MI          1-131, Gamma D-105              07-10-01       Sample not available; container Ml          1-131, Gamma                                                sent to wrong farm.
09-05-01      Sample not available, D-105 Ml          1-131, Gamma                                               'was missed D-105              09-18-01       Sample not available; location Ml          1-131, Gamma                                                dropped from program, replaced by D-108.
D-15              03-01-01       Power was off from 02-24-01; AP/Al          Gross Beta,                                               very low volume due to 40.5 hour 1-131                                                 run.
D-2, 5. 7.           10-18-01      Analysis for 1-131 missed by the Al               1-131                                                 laboratory**.
D-8, 11, 15 D-7              12-27-01      Sample lost in shipment.
Al               1-131 D-22, D-41,        2nd Qtr.. 2001    TLDs missing in the field.
TLD        Ambient Gamma D-42, D-83 week is required by the ODAM (Table 6.3-1). The
" Collection and analysis of at least five air Iodine samples per requirement for this week was not met vi

3.0 DATA TABLES vii

DUANE ARNOLD Table 1. Airborne particulates, analysis for gross beta.
Location: D-1 (Cedar Rapids)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date         Volume                                      Date      Volume Collected          3 (m )           Gross Beta                Collected    (m3 )      Gross Beta Required LLD                        0.010                                              0.010 01-04-01        286          0.033  +/- 0.004              07-05-01      283     0.024  +/- 0.004 01-11-01         284         0.029  +/- 0.004              07-12-01      286     0.028  +/- 0.004 01-18-01         286         0.035  +/- 0.004              07-19-01      286     0.025  +/- 0.004 01-25-01         285         0.035  +/- 0.004              07-26-01      286     0.022  +/- 0.004 02-01-01         286         0.023  +/- 0.003              08-02-01      283     0.025  +/- 0.003 02-08-01         285         0.031  +/- 0.004              08-09-01      287     0.037  +/-  0.004 02-15-01         286         0.034  +/- 0.004              08-16-01      284     0.024  +/-  0.003 02-22-01         288         0.041  +/- 0.004              08-23-01      287     0.025  +/-  0.004 03-01-01         282         0.035  +/- 0.004              08-30-01      284     0.028  +/-  0.003 03-08-01         285         0.025  +/- 0.004              09-06-01      286     0.021  +/-  0.003 03-15-01         287         0.016  +/- 0.003              09-13-01      288     0.023  +/-  0.003 03-22-01         280         0.022  +/- 0.003              09-20-01      284     0.030  +/-  0.004 03-29-01         290         0.019  +/- 0.003              09-27-01      281     0.024  +/-  0.004 1st Quarter Mean +/- s.d.      0.029 +/- 0.007             3rd Quarter Mean +/- s.d. 0.026 +/- 0.004 04-05-01         284         0.023
* 0.003               10-04-01     152     0.058   +/- 0.008 04-12-01         285         0.017
* 0.003               10-11-01     287     0.030   +/- 0.004 04-19-01         285         0.018  +/- 0.003               10-18-01     285     0.022   +/- 0.003 04-26-01         287         0.021  +/- 0.003               10-25-01     286     0.031   +/- 0.004 05-03-01         281         0.023
* 0.003               11-01-01     287     0.016   +/- 0.003 05-10-01         289         0.017  +/- 0.003               11-08-01     285     0.028   +/- 0.003 05-17-01         285         0.018  +/- 0.003               11-15-01     286     0.040   +/- 0.005 05-24-01         286         0.012  +/- 0.003               11-21-01     244     0.039   +/- 0.004 05-31-01         286         0.010  +/- 0.003               11-29-01     327     0.027   +/- 0.003 06-06-01         245         0.009  +/- 0.003               12-06-01     286     0.041   +/- 0.004 06-13-01         283         0.021  +/- 0.003               12-13-01     285     0.038   +/- 0.004 06-21-01         330         0.020  +/- 0.003               12-20-01     285     0.039   +/- 0.004 06-28-01         284         0.025  +/- 0.004               12-27-01     286     0.041   +/- 0.004 01-03-02     286     0.031   +/- 0.004 2nd Quarter Mean +/- s.d.       0.018 +/- 0.005             4th Quarter Mean +/- s.d. 0.034 +/- 0.010 Cumulative Average              0.027 Previous Annual Average         0.028 "Low volume; no reason given for reading of 89.4 hr. run.
1- 1

DUANE ARNOLD Table 2. Airborne particulates and charcoal canisters, analyses for gross beta and iodine- 131'.
Location: D-2 (Marion)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date         Volume                                      Date          Volume Collected        (M 3)          Gross Beta                Collected         (m3 )      Gross Beta Required LLD                         0.010                                                   0.010 01-04-01         286         0.036 +/- 0.004               07-05-01          284      0.021    +/- 0.004 01-11-01         284         0.027 +/- 0.004               07-12-01          287      0.024    +/- 0.004 01-18-01         286         0.034 +/- 0.004               07-19-01          285      0.028    +/- 0.004 01-25-01         285         0.037 +/- 0.004               07-26-01          288      0.019    +/- 0.003 02-01-01         287         0.021 +/- 0.003               08-02-01          283      0.026    +/- 0.003 02-08-01         283         0.027 +/- 0.004               08-09-01          287      0.033    +/- 0.004 02-15-01         286         0.032  +/- 0.004              08-16-01           285     0.024    +/- 0.003 02-22-01         287         0.036  +/- 0.004              08-23-01           287     0.021    +/- 0.004 03-01-01         283         0.032  +/- 0.004              08-30-01          284      0.030    +/- 0.004 03-08-01         285         0.032  +/- 0.004              09-06-01           286     0.018    +/- 0.003 03-15-01         288         0.019  +/- 0.003              09-13-01           288     0.023    +/- 0.003 03-22-01         281         0.023  +/- 0.003              09-20-01           284     0.028    +/- 0.003 03-29-01         288         0.024  +/- 0.003              09-27-01           286     0.021    +/- 0.004 1st Quarter Mean +/- s.d.       0.029 +/- 0.006              3rd Quarter Mean +/- s.d. 0.024 +/- 0.004 04-05-01         285         0.025  +/- 0.003               10-04-01          284     0.027    +/- 0.004 04-12-01         284         0.018  +/- 0.004               10-11-01          287     0.024    +/- 0.003 04-19-01         285         0.018  +/- 0.003               10-18-01          285     0.021    +/- 0.003 04-26-01         288         0.024  +/- 0.003               10-25-01          286     0.030    +/- 0.003 05-03-01         281         0.022  +/- 0.003               11-01-01          286     0.016    +/- 0.003 05-10-01         289         0.015  +/- 0.003               11-08-01          285     0.026    +/- 0.003 05-17-01         284         0.018  +/- 0.003               11-15-01          286     0.032    +/- 0.004 05-24-01         285         0.014  +/- 0.003               11-21-01          245     0.033    +/- 0.004 05-31-01         288         0.011  +/- 0.003               11-29-01          327     0.027    +/- 0.003 06-06-01         244         0.008  +/- 0.003               12-06-01          286     0.035 +/- 0.004 06-13-01         284         0.023  +/- 0.003               12-13-01          285      0.036   +/- 0.004 06-21-01         329         0.041  +/- 0.004               12-20-01          285      0.030   +/- 0.004 06-28-01         283         0.025  +/- 0.004               12-27-01          283      0.039    +/- 0.004 01-03-02          287      0.029    +/- 0.003 2nd Quarter Mean +/- s.d.       0.020 +/- 0.008              4th Quarter Mean +/- s.d.      0.029 +/- 0.006 Cumulative Average                     0.026 Previous Annual Average                0.029 "Iodine-131 concentrations are <0.07 pCi/m3 unless noted otherwise.
bIodine- 131 not counted; charcoal cartridges inadvertantly lost at laboratory.
2-1

DUANE ARNOLD Table 3. Airborne particulates, analysis for gross beta.
Location: D-33 (Hiawatha)
Units: pCi/m Collection: Continuous, weekly exchange.
Date        Volume                                       Date       Volume Collected        (m3)           Gross Beta                Collected      (m3 )     Gross Beta Required LLD                        0.010                                              0.010 01-04-01         287         0.031  + 0.004               07-05-01       283     0.021
* 0.004 01-11-01         284         0.022  + 0.004               07-12-01       287     0.023
* 0.004 01-18-01         286         0.034  + 0.004               07-19-01       289     0.023
* 0.004 01-25-01         285         0.036  +/- 0.004               07-26-01       283     0.020
* 0.003 02-01-01         287         0.022  +/- 0.003               08-02-01       283     0.028
* 0.004 02-08-01         284         0.024 + 0.004                08-09-01       287     0.038
* 0.004 02-15-01         286         0.030 +/- 0.004                08-16-01       285     0.021
* 0.003 02-22-01         286         0.040 +/- 0.004                08-23-01       287     0.021 +/- 0.004 03-01-01         285         0.029 + 0.004                08-30-01       284     0.031
* 0.004 03-08-01         285         0.024  + 0.003               09-06-01       285     0.020 +/- 0.003 03-15-01         286         0.018  +/-0.003                09-13-01       287     0.024 +/- 0.003 03-22-01         283         0.016  +0.003                09-20-01       285     0.026 +/- 0.003 03-29-01         288         0.025  - 0.003               09-27-01       285     0.021 +/- 0.004 1st Quarter Mean +/- s.d.      0.027 +/- 0.007               3rd Quarter Mean +/- s.d. 0.024 +/- 0.005 04-05-01         283         0.021  +/- 0.003               10-04-01       284     0.024
* 0.004 04-12-01         286         0.017  +/- 0.003               10-11-01       286     0.025
* 0.003 04-19-01         285         0.018  +/- 0.003               10-18-01       286     0.021
* 0.003 04-26-01         286         0.021  +/- 0.003               10-25-01       286     0.024
* 0.003 05-03-01         282         0.021  +/- 0.003               11-01-01       287     0.016
* 0.003 05-10-01         289         0.015  +/- 0.003               11-08-01       285     0.029
* 0.003 05-17-01         285         0.016  +/- 0.003               11-15-01       286     0.029
* 0.004 05-24-01         246         0.012  +/- 0.003               11-21-01       243     0.036
* 0.004 05-31-01         286         0.006  +/- 0.003               11-29-01       328     0.022
* 0.003 06-06-01         246         0.009  +/- 0.003               12-06-01       286     0.033  +/- 0.004 06-13-01          197        0.026  + 0.004               12-13-01       285     0.030  +/- 0.004 06-21-01          324         0.018 +/- 0.003               12-20-01       286     0.030  +/- 0.004 06-28-01         281          0.021 + 0.004               12-27-01       283     0.036  +/- 0.004 01-03-02       286     0.026  +/- 0.003 2nd Quarter Mean +/- s.d.        0.017 +/- 0.005              4th Quarter Mean +/- s.d. 0.027  +/- 0.006 Cumulative Average               0.024 Previous Annual Average          0.026 3-1

DUANE ARNOLD Table 4. Airborne particulates and charcoal canisters, analyses for gross beta and iodine- 131a.
Location: D-5 (Palo)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date        Volume                                      Date         Volume Collected        (m3)         Gross Beta                 Collected        (m3)        Gross Beta Required LLD                         0.0LO                                                   0.010 01-04-01         286        0.035   +/- 0.004              07-05-01          284      0.024 +/- 0.004 01-11-01         284        0.030   +/- 0.004              07-12-01          280      0.026 +/- 0.004 01-18-01         287        0.035   +/-  0.004             07-19-01          286      0.027 +/- 0.004 01-25-01         286        0.037   + 0.004              07-26-01          285      0.023 +/- 0.004 02-01-01         285        0.021     -0.003             08-02-01          284      0.025 +/- 0.003 02-08-01         285        0.030   -  0.004             08-09-01          287      0.035 +/- 0.004 02-15-01         285        0.032   -  0.004             08-16-01          284      0.023 +/- 0.003 02-22-01         285        0.046   -  0.004             08-23-01          288      0.023 +/- 0.004 03-01-01         285        0.031   -  0.004             08-30-01          284      0.032 +/- 0.004 03-08-01         286        0.024.4 0.003                09-06-01          286      0.022   +/- 0.003 03-15-01         284        0.018 -0.003                 09-13-01          287      0.026   +/- 0.003 03-22-01         283        0.023 - 0.003                09-20-01          284      0.027   +/- 0.003 03-29-01         289        0.021 - 0.003                09-27-01          285      0.023   +/- 0.004 1st Quarter Mean +/- s.d.      0.029 +/- 0.008              3rd Quarter Mean +/- s.d.      0.026 +/- 0.004 04-05-01         283        0.023   +/- 0.003              10-04-01          284      0.035   +/- 0.004 04-12-01         285        0.015   +/- 0.003              10-11-01          288      0.023   +/- 0.003 04-19-01          286       0.014   +/- 0.003              10-18-01          285      0.023   +/- 0.003 b 04-26-01          285       0.018   +/- 0.003              10-25-01          286      0.032   +/- 0.004 05-03-01          283       0.026   +/- 0.003              11-01-01          287      0.020   +/- 0.004 05-10-01          288       0.016   +/- 0.003              11-08-01          285      0.029   +/- 0.003 05-17-01          285       0.017   +/- 0.003              11-15-01          285      0.040   +/- 0.005 05-24-01          286       0.012   +/- 0.003              11-21-01          245      0.043   +/- 0.005 05-31-01          285       0.013   +/- 0.003              11-29-01          326      0.026   +/- 0.003 06-06-01          252       0.007   +/- 0.003              12-06-01          286      0.042   +/- 0.005 06-13-01          284       0.021   +/- 0.003              12-13-01          285      0.030   +/- 0.004 06-21-01          326       0.019   +/- 0.003              12-20-01          285      0.033   +/- 0.004 06-28-01          286       0.027   +/- 0.004              12-27-01          285      0.036   +/- 0.004 01-03-02          286      0.026   +/- 0.003 2nd Quarter Mean +/- s.d.       0.0 18 +/- 0.006             4th Quarter Mean A: s.d. 0.031 +/- 0.007 Cumulative Average                    0.026 Previous Annual Average               0.029
" Iodine-13 1 concentrations are <0.07 pCi/m3 unless noted otherwise.
b Iodine-131 not counted; charcoal cartridges inadvertantly lost at laboratory.
4-1

DUANE ARNOLD Table 5. Airborne particulates, analysis for gross beta.
Location: D-6 (Center Point)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date        Volume                                       Date      Volume Collected        (m3 )        Gross Beta                 Collected      (m3)      Gross Beta Required LLD                      0.010                                               0.010 01-04-01         286        0.038  +/- 0.004                07-05-01      284     0.021 +/- 0.004 01-11-01         284        0.025  +/- 0.004                07-12-01      286     0.023 +/- 0.004 01-18-01         287        0.033  +/- 0.004                07-19-01      287     0.019 +/- 0.003 01-25-01         286        0.040  + 0.004                07-26-01      285     0.019 +/- 0.003 02-01-01         286        0.021  +/- 0.003                08-02-01      284     0.020 +/- 0.003 02-08-01         285        0.033  +/- 0.004                08-09-01      287     0.034 +/- 0.004 02-15-01         285        0.033  +/- 0.004                08-16-01      285     0.020 +/- 0.003 02-22-01         285        0.047  +/- 0.004                08-23-01      287     0.019 +/- 0.003 03-01-01         285        0.029  +/- 0.004                08-30-01      284     0.026 +/- 0.003 03-08-01         286        0.020  +/- 0.003                09-06-01      286     0.020 +/-  0.003 03-15-01         284        0.020  +/- 0.003                09-13-01      287     0.021 +/-  0.003 03-22-01         283        0.020  +/- 0.003                09-20-01      284     0.025 +/-  0.003 03-29-01         289        0.022  +/- 0.003                09-27-01      286     0.019 +/-  0.004 1st Quarter Mean +/- s.d.      0.029 +/- 0.009               3rd Quarter Mean +/- s.d. 0.022 +/- 0.004 04-05-01         283        0.022  +/- 0.003                10-04-01       284    0.026 : 0.004 04-12-01         285        0.014  +/- 0.003                10-11-01       286    0.024 : 0.003 04-19-01         286        0.017  +/- 0.003                10-18-01      285     0.022 +/- 0.003 04-26-01         286        0.024  +/- 0.003                10-25-01      285     0.028 +/- 0.003 05-03-01         283        0.021  +/- 0.003                11-01-01      287     0.021 +/- 0.004 05-10-01         288        0.016  +/- 0.003                11-08-01       285    0.026 +/- 0.003 05-17-01         281        0.017  +/- 0.003                11-15-01       285    0.037  +/- 0.004 05-24-01        286        0.013  +/- 0.003                11-21-01       245    0.037  +/- 0.004 05-31-01        285        0.009  +/- 0.003                11-29-01       326    0.024  +/- 0.003 06-06-01         246       0.007  +/- 0.003                12-06-01       286    0.035  +/- 0.004 06-13-01         284       0.021  +/- 0.003                12-13-01       285    0.036  +/- 0.004 06-21-01         327       0.019  +/- 0.003                12-20-01       285    0.036  + 0.004 06-28-01         218       0.026  +/- 0.005                12-27-01       285    0.032  + 0.004 01-03-02       286    0.028  +/- 0.003 2nd Quarter Mean +/- s.d.      0.017 +/- 0.006               4th Quarter Mean +/- s.d. 0.029 +/- 0.006 Cumulative Average              0.025 Previous Annual Average         0.029 5-1

DUANE ARNOLD Table 6. Airborne particulates and charcoal canisters, analyses for gross beta and iodine- 131 a.
Location: D-73 (Shellsburg)
Units: pCi/m Collection: Continuous, weekly exchange.
Date        Volume                                      Date         Volume Collected        (M3)          Gross Beta                Collected        (m3)        Gross Beta Required LLD                        0.010                                                    0.010 01-04-01         286         0.033 +/- 0.004               07-05-01          284       0.021   +/- 0.004 01-11-01         284         0.027 +/- 0.004               07-12-01          280       0.028   +/- 0.004 01-18-01         286         0.033 +/- 0.004               07-19-01          290       0.031   +/- 0.004 01-25-01         285         0.034 +/- 0.004               07-26-01          272       0.026   + 0.004 02-01-01         286         0.022 +/- 0.003               08-02-01          284       0.026   +/- 0.003 02-08-01         285         0.027 +/- 0.004               08-09-01          287       0.039   +/- 0.004 02-15-01         285         0.032 +/- 0.004               08-16-01          285       0.025   +/- 0.003 02-22-01         285         0.041 +/- 0.004               08-23-01          288       0.022   +/- 0.004 03-01-01         285         0.033 +/- 0.004               08-30-01          284       0.030   +/- 0.004 03-08-01         286         0.023 +/- 0.003               09-06-01          286       0.017   +/- 0.003 03-15-01         284         0.017 +/- 0.003               09-13-01          287       0.025   +/- 0.003 03-22-01         283         0.022 +/- 0.003               09-20-01          284       0.024   +/- 0.003 03-29-01         289         0.023 +/- 0.003               09-27-01          285       0.021   +/- 0.004 1st Quarter Mean +/- s.d.       0.028 4- 0.007            3rd Quarter Mean +/- s.d.       0.026 +/- 0.006 04-05-01         283         0.019 +/- 0.003               10-04-01          284       0.030   +/- 0.004 04-12-01         285         0.017 +/- 0.003               10-11-01          286       0.020   +/- 0.003 04-19-01         286         0.020 +/- 0.003               10-18-01          285       0.022   +/- 0.003 b 04-26-01         286         0.021 +/- 0.003               10-25-01          285       0.028   +/- 0.003 05-03-01         283         0.026 +/- 0.003               11-01-01          287       0.017   +/- 0.003 05-10-01         288         0.016 +/- 0.003               11-08-01          286       0.026   +/- 0.003 05-17-01         285         0.019 +/- 0.003               11-15-01          285       0.035   +/- 0.004 05-24-01         285         0.013 +/- 0.003               11-21-01          245       0.037   +/- 0.004 05-31-01         285         0.013 +/- 0.003               11-29-01          326       0.024   +/- 0.003 06-06-01         246         0.007  +/- 0.003              12-06-01          286       0.035   +/- 0.004 06-13-01         284         0.021  +/- 0.003              12-13-01          285       0.035   +/- 0.004 06-21-01         327        0.018  +/- 0.003              12-20-01          285       0.035   +/- 0.004 06-28-01        286         0.026  +/- 0.004              12-27-01          285       0.044   +/- 0.004 01-03-02          286       0.026   +/- 0.003 2nd Quarter Mean +/- s.d.       0.018 +/- 0.005             4th Quarter Mean +/- s.d.       0.030 +/- 0.008 Cumulative Average                     0.026 Previous Annual Average                0.026 aIodine-13 1 concentrations are <0.07 pCi/m3 unless noted otherwise.
bIodine-131 not counted; charcoal cartridges inadvertantly lost at laboratory.
'Iodine cartridge not received.
6-1

DUANE ARNOLD Table 7. Airborne particulates and charcoal canisters, analyses for gross beta and iodine- 131 a.
Location: D-8 (Urbana)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date       Volume                                      Date         Volume Collected       (M3)          Gross Beta                Collected        (m3 )        Gross Beta Required LLD                        0.010                                                    0.010 01-04-01        286        0.037   +/- 0.004              07-05-01          284       0.021   +/- 0.004 01-11-01        284         0.031  +/- 0.004              07-12-01          286       0.027   +/- 0.004 01-18-01        287     - 0.041    +/- 0.004              07-19-01          287       0.028   +/- 0.004 01-25-01        285         0.046  +/- 0.004              07-26-01          283       0.019   +/- 0.003 02-01-01        286        0.024   +/- 0.003              08-02-01          284       0.024   +/- 0.003 02-08-01        285         0.023  +/- 0.003              08-09-01          287       0.041   :E 0.004 02-15-01        285         0.034  +/- 0.004              08-16-01          284       0.024   :E 0.003 02-22-01        285         0.049  +/- 0.004              08-23-01          288       0.022   + 0.004 03-01-01        284         0.035  +/- 0.004              08-30-01          284       0.031   - 0.004 03-08-01        286         0.026  +/- 0.004              09-06-01          286       0.020   -  0.003 03-15-01        284         0.017  +/- 0.003              09-13-01          287       0.024   -  0.003 03-22-01        283         0.022  +/- 0.003              09-20-01          284       0.023   -  0.003 03-29-01        289         0.023  +/- 0.003              09-27-01          285       0.022   -  0.004 1st Quarter Mean +/- s.d.      0.031 +/- 0.010             3rd Quarter Mean +/- s.d.       0.025 +/- 0.006 04-05-01        283         0.023  +/- 0.003              10-04-01          284       0.029   +/- 0.004 04-12-01        285         0.015  +/- 0.003              10-11-01          286       0.024   +/- 0.003 04-19-01        286         0.019  +/- 0.003              10-18-01          285       0.023   +/- 0.003  b 04-26-01         285        0.022  +/- 0.003              10-25-01          285       0.032   +/- 0.004 05-03-01         283        0.023  +/- 0.003              11-01-01          287       0.019   +/- 0.004 05-10-01         288        0.018  +/- 0.003              11-08-01          285       0.029   +/- 0.003 05-17-01         284        0.020  +/- 0.004              11-15-01          285       0.042   +/- 0.005 05-24-01         285        0.014  +/- 0.003              11-21-01          245       0.042   +/- 0.004 05-31-01         285        0.009  +/- 0.003              11-29-01          326       0.026   =E0.003 06-06-01         246        0.009  +/- 0.003               12-06-01         286       0.036    +/- 0.004 06-13-01         284        0.024  +/- 0.003               12-13-01         285       0.035    +/- 0.004 06-21-01         323        0.024  +/- 0.003               12-20-01         285       0.037    +/- 0.004 06-28-01         285        0.025  +/- 0.004               12-27-01         285       0.037    +/- 0.004 01-03-02          286       0.028    +/- 0.003 2nd Quarter Mean +/- s.d.       0.019 +/- 0.006              4th Quarter Mean A s.d.      0.031 +/- 0.007 Cumulative Average                      0.027 Previous Annual Average                 0.028
" Iodine-13 1 concentrations are <0.07 pCi/m3 unless noted otherwise.
bIodine-131 not counted; charcoal cartridges inadvertantly lost at laboratory.
7-1

DUANE ARNOLD Table 8. Airborne particulates, analysis for gross beta.
Location: D-10 (Atkins)
Units: pCi/m 3 Collection: Continuous, weekly exchange.
Date         Volume                                     Date      Volume Collected        (m3 )         Gross Beta               Collected      (m3 )     Gross Beta Required LLD                         0.010                                            0.010 01-04-01        285         0.034   +/- 0.004            07-05-01       283     0.023
* 0.004 01-11-01        283         0.023   +/- 0.004            07-12-01       287     0.022
* 0.003 01-18-01        286     -   0.033   +/- 0.004            07-19-01       285     0.026 *- 0.004 01-25-01        285         0.035   +/- 0.004            07-26-01       287     0.021
* 0.003 02-01-01        287         0.018   +/- 0.003            08-02-01       283     0.026
* 0.003 02-08-01        280         0.026   +/- 0.004            08-09-01       286     0.035
* 0.004 02-15-01        286         0.034   + 0.004             08-16-01      285     0.022
* 0.003 02-22-01        288         0.040   +/- 0.004             08-23-01      288     0.021
* 0.004 03-01-01        282         0.032   +/- 0.004             08-30-01      284     0.033
* 0.004 03-08-01        285         0.021 +/- 0.003              09-06-01       285     0.022 +/- 0.003 03-15-01        287         0.022 +/- 0.003              09-13-01       288     0.023 +/- 0.003 03-22-01        280         0.021 +/- 0.003              09-20-01       284     0.027 + 0.003 03-29-01        289         0.023 +/- 0.003               09-27-01      285     0.020 +/- 0.004 1st Quarter Mean +/- s.d.      0.028 +/- 0.007             3rd Quarter Mean +/- s.d. 0.025 +/- 0.005 04-05-01        284         0.020
* 0.003             10-04-01      285     0.029 +/- 0.004 04-12-01        286         0.015
* 0.003             10-11-01      287     0.025  +/- 0.003 04-19-01        284         0.021
* 0.003             10-18-01      286     0.024  +/- 0.003 04-26-01         167   a    0.024
* 0.005             10-25-01      284     0.033  +/- 0.004 05-03-01         82    b    0.033   - 0.009             11-01-01      288     0.022  +/- 0.004 05-10-01         289        0.018   +/- 0.004             11-08-01      286     0.028  +/- 0.003 05-17-01         285         0.019  +/- 0.003             11-15-01      285     0.043  +/- 0.005 05-24-01         286         0.012  +/- 0.003             11-21-01      244     0.040  +/- 0.004 05-31-01         287         0.010  +/- 0.003             11-29-01      327     0.025  +/- 0.003 06-06-01         244         0.008 +/- 0.003              12-06-01      286     0.038  +/- 0.004 06-13-01         285         0.022 +/- 0.003              12-13-01      285     0.036  +/- 0.004 06-21-01         327         0.021 +/- 0.003              12-20-01      285     0.038  +/- 0.004 06-28-01         285         0.023 +/- 0.004              12-27-01       284    0.043  +/- 0.004 01-03-02       286    0.028  +/- 0.003 2nd Quarter Mean +/- s.d.       0.019 +/- 0.007            4th Quarter Mean +/- s.d. 0.032 +/- 0.007 Cumulative Average              0.026 Previous Annual Average         0.028 a Low volume; electricity off due to storm damage.
bLow volume; electric repaired 05-01-01.
8-1

DUANE ARNOLD Table 9. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-13 1'.
Location: D- 11 (Toddville)
Units: pCi/m3 Collection: Continuous, weekly exchange.
Date        Volume                                     Date          Volume Collected        (m3)          Gross Beta               Collected         (m3)        Gross Beta Required LLD                          0.010                                                 0.010 01-04-01         287         0.037  +/- 0.004             07-05-01          283       0.025 + 0.004 01-11-01         284         0.029  +/- 0.004             07-12-01           183      0.039 +/- 0.006 01-18-01         286         0.037  +/- 0.004             07-19-01          287       0.031 +/- 0.004 01-25-01         284         0.039  +/- 0.004             07-26-01          286       0.022 +/- 0.004 02-01-01         286         0.022  +/- 0.003             08-02-01          284       0.029 +/- 0.004 02-08-01         285         0.027  +/- 0.004             08-09-01          286       0.038 +/- 0.004 02-15-01         285         0.031  +/- 0.004             08-16-01          286       0.021 +/- 0.003 02-22-01         286         0.042  +/- 0.004             08-23-01          287       0.024 +/- 0.004 03-01-01         284         0.035  +/- 0.004             08-30-01          284       0.019 +/- 0.003 03-08-01         285         0.027  +/- 0.004             09-06-01          286       0.018 +/- 0.003 03-15-01         285         0.019  +/- 0.003             09-13-01          287       0.023 +/- 0.003 03-22-01         282         0.017  +/- 0.003             09-20-01          285       0.029 +/- 0.003 03-29-01         289         0.023  +/- 0.003             09-27-01          285       0.022 + 0.004 1st Quarter Mean +/- s.d.       0.030 +/- 0.008            3rd Quarter Mean +/- s.d.       0.026 +/- 0.007 04-05-01         284         0.020  +/-  0.003            10-04-01          284       0.029 +/- 0.004 04-12-01         286         0.018  +/-  0.003            10-11-01          286       0.025 +/- 0.003 04-19-01         285         0.019  +/-  0.003            10-18-01          285       0.023 +/- 0.003 04-26-01         287         0.023  +/-  0.003            10-25-01          286       0.028 +/- 0.003 05-03-01         281         0.023  +/-  0.003            11-01-01          287       0.017 4: 0.003 05-10-01         289         0.017  +/-  0.003            11-08-01          285       0.033 +/-  0.004 05-17-01         275         0.019  +/-  0.004            11-15-01          285       0.039 +/-  0.005 05-24-01         287         0.012  +/-  0.003            11-21-01          244       0.040 +/-  0.004 05-31-01         285         0.010  +/-  0.003            11-29-01           327      0.030 +/-  0.003 06-06-01         247         0.006  +/- 0.003             12-06-01           287      0.039 +/- 0.004 06-13-01         284         0.022  +/- 0.003             12-13-01           285      0.036 +/- 0.004 06-21-01         328         0.021  +/- 0.003             12-20-01           285      0.037 +/- 0.004 06-28-01         285         0.024   +/- 0.004            12-27-01           284      0.037  +/- 0.004 01-03-02           286      0.031  +/- 0.004 2nd Quarter Mean +/- s.d.        0.018 +/- 0.005            4th Quarter Mean +/- s.d.       0.032 +/- 0.007 Previous Annual Averane               0.027 "aIodine-131 concentrations are <0.07 pCi/m3 unless noted otherwise.
bVolume    low; electric off due to storm.
'Iodine-131 not counted; charcoal cartridges inadvertantly lost at laboratory.
9-1

DUANE ARNOLD Table 10. Airborne particulates, analysis for gross beta.
Location: D-13 Units: pCi/m3 Collection: Continuous, weekly exchange.
Date        Volume                                       Date      Volume Collected        (mi)        Gross Beta                   Collected     (m')       Gross Beta Required LLD                      0.O10                                                 0.010 01-04-01         286       0.036 +/- 0.004                  07-05-01      284      0.023  +/- 0.004 01-11-01         284       0.025 +/- 0.004                  07-12-01      286      0.028  +/- 0.004 01-18-01         287       0.029 +/- 0.004                  07-19-01      287      0.023  +/- 0.004 01-25-01         286       0.041 +/- 0.004                  07-26-01      284      0.019  +/- 0.003 02-01-01         286       0.021 +/- 0.003                  08-02-01      284      0.024  +/- 0.003 02-08-01         285       0.027 +/- 0.004                  08-09-01      287      0.039  +/- 0.004 02-15-01         285       0.026 +/- 0.004                  08-16-01      285      0.023  +/- 0.003 02-22-01         285       0.043 +/- 0.004                  08-23-01      287      0.019  +/- 0.003 03-01-01         285       0.035  +/- 0.004                 08-30-01      284      0.029  +/- 0.003 03-08-01         286       0.026  +/- 0.004                 09-06-01      286      0.024  +/- 0.003 03-15-01         284       0.020 +/- 0.003                  09-13-01      287      0.025  +/- 0.003 03-22-01         283       0.021 +/- 0.003                  09-20-01      284      0.028  +/- 0.003 03-29-01         289       0.025 +/- 0.003                  09-27-01      286      0.021  +/- 0.004 1st Quarter Mean +/- s.d. 0.029 +/- 0.008                3rd Quarter Mean +/- s.d. 0.025 +/- 0.005 04-05-01         284       0.020  +/- 0.003                 10-04-01      284      0.028  +/- 0.004 04-12-01         285       0.017  +/- 0.003                 10-11-01      286      0.027  +/- 0.003 04-19-01         285       0.020  +/- 0.003                 10-18-01      285      0.024  +/- 0.003 04-26-01         286       0.024  +/- 0.003                 10-25-01      285      0.030  +/- 0.003 05-03-01         281       0.023  +/- 0.003                 11-01-01      287      0.017  +/- 0.003 05-10-01         288       0.020 +/-E0.004                  11-08-01      285      0.028  +/- 0.003 05-17-01         281       0.022 +/- 0.004                  11-15-01      285      0.037  +/- 0.004 05-24-01         285       0.016 +/- 0.003                  11-21-01      245      0.034  +/- 0.004 05-31-01         285       0.011 +/- 0.003                  11-29-01      326      0.026  +/- 0.003 06-06-01          246      0.011  +/- 0.003                 12-06-01      286      0.045  +/- 0.005 06-13-01          284      0.023  +/- 0.003                 12-13-01      285      0.036  +/- 0.004 06-21-01          327      0.022  +/- 0.003                 12-20-01      285      0.037  +/- 0.004 06-28-01          286      0.026  +/- 0.004                 12-27-01      285      0.040  +/- 0.004 01-03-02       289     0.030  +/- 0.004 2nd Quarter Mean +/- s.d.      0.020 +/- 0.005                4th Quarter Mean +/- s.d. 0.031 +/- 0.007 Cumulative Average               0.026 Previous Annual Average m        0.027 10-1

DUANE ARNOLD Table 11. Airborne particulates and charcoal canisters, analyses for gross beta and iodine- 131'.
Location: D-15 3
(On-site)
Units: pCi/m Collection: Continuous, weekly exchange.
Date        Volume                                        Date         Volume Collected        (M3)          Gross Beta                 Collected         (m.3)       Gross Beta Required LLD                         0.010                                                     0.010 01-04-01         286         0.033  +/- 0.004                07-05-01         285        0.021 +/- 0.004 01-11-01         284        0.026   +/- 0.004                07-12-01         280        0.024 +/- 0.004 01-18-01         286         0.033  +/- 0.004                07-19-01         286        0.025 +/- 0.004 01-25-01         286         0.038  +/- 0.004                07-26-01         284        0.021 +/- 0.003 02-01-01         285         0.024  +/- 0.003                08-02-01         284        0.025 +/- 0.003 02-08-01         285         0.026 +/- 0.004                 08-09-01         287        0.035 +/- 0.004 02-15-01         285         0.029 + 0.004                 08-16-01         284        0.020 +/- 0.003 02-22-01         285         0.039 +/- 0.004                 08-23-01         287        0.019 +/- 0.003 03-01-01         NSb                                       08-30-01         285        0.031 +/- 0.004 03-08-01          80        0.014   +/- 0.009                09-06-01         286        0.020 +/- 0.003 03-15-01         284         0.018  +/- 0.003               09-13-01          284        0.022 +/- 0.003 03-22-01         283         0.018  +/- 0.003               09-20-01          285        0.026 +/- 0.003 03-29-01         289         0.021  +/- 0.003                09-27-01         288        0.019 +/- 0.004 1st Quarter Mean +/- s.d.       0.027 +/- 0.008               3rd Quarter Mean +/- s.d.       0.024 +/- 0.005 04-05-01         283         0.019  +/- 0.003                10-04-01         284        0.032  +/- 0.004 04-12-01         285         0.013  +/- 0.003                10-11-01         285        0.025  +/- 0.003 04-19-01         286         0.016  +/- 0.003                10-18-01         286        0.022  +/- 0.003 04-26-01         285         0.019  +/- 0.003                10-25-01         286        0.031  +/- 0.004 05-03-01         284         0.019  +/- 0.003                11-01-01         287        0.018  +/- 0.004 05-10-01         287         0.017  +/- 0.003                11-08-01         284        0.030  +/- 0.004 05-17-01         286         0.015  +/- 0.003                11-15-01         286        0.035  +/- 0.004 05-24-01         285         0.010  +/- 0.003                11-21-01         244        0.040  +/- 0.004 05-31-01         285         0.011  +/- 0.003                11-29-01         327        0.029  +/- 0.003 06-06-01         246         0.008  +/- 0.003                12-06-01         286        0.038  +/- 0.004 06-13-01         239         0.018  +/- 0.003                12-13-01         285        0.034  +/- 0.004 06-21-01          119        0.025  +/- 0.006                12-20-01         286        0.039  +/- 0.004 06-28-01         285         0.020  +/- 0.004                12-27-01          285       0.042  +/- 0.004 01-03-02          286       0.033  +/- 0.004 2nd Quarter Mean +/- s.d.        0.016 +/- 0.005               4th Quarter Mean +/- s.d.       0.032 +/- 0.007 Cumulative Average                    0.025 Previous Annual Averagze               0.025 a Iodine-131 concentrations are <0.07 pCi/m3 unless noted otherwise.
b "NS" = No sample; electricity off. Refer to Table 2, "Listing of Missed Samples."
Iodine- 131 not counted; charcoal cartridges inadvertantly lost at laboratory.
11-1

DUANE ARNOLD Table 12. Airborne particulates, analysis for gross beta.
Location: D-163 (On-site)
Units: pCi/m Collection: Continuous, weekly exchange.
Date       Volume                                         Date      Volume Collected       (M3)          Gross Beta                  Collected      (M3 )     Gross Beta Required LLD                      0.0o10                                               0.010 01-04-01        286        0.037  S0.004                  07-05-01      285     0.022 +/- 0.004 01-11-01        284        0.025
* 0.004                 07-12-01      286     0.024 +/- 0.004 01-18-01        286        0.033
* 0.004                 07-19-01      286     0.026 +/- 0.004 01-25-01        286        0.037
* 0.004                 07-26-01      284     0.023 +/- 0.004 02-01-01        286        0.020  :E 0.003                08-02-01      284     0.026 +/- 0.003 02-08-01        285        0.027
* 0.004                08-09-01      285     0.038 +/- 0.004 02-15-01        285        0.030
* 0.004                08-16-01      284     0.023 +/- 0.003 02-22-01        285        0.043
* 0.004                08-23-01      288     0.022 +/- 0.004 03-01-01        286        0.035
* 0.004                08-30-01      285     0.031 +/- 0.004 03-08-01        287        0.028  +/- 0.004                 09-06-01      286     0.022 +/- 0.003 03-15-01        284        0.020
* 0.003                 09-13-01      284     0.025 +/- 0.003 03-22-01        283        0.021
* 0.003                 09-20-01      285     0.030 +/- 0.004 03-29-01        289        0.026  +/- 0.003                 09-27-01      287     0.024 +/- 0.004 1st Quarter Mean +/- s.d.      0.029 +/- 0.007                3rd Quarter Mean +/- s.d. 0.026 +/- 0.005 04-05-01        283        0.023  +/- 0.003                 10-04-01      284     0.032 +/-  0.004 04-12-01        285        0.019  +/- 0.004                 10-11-01      285     0.024 +/-  0.003 04-19-01        286        0.018  +/- 0.003                 10-18-01      286     0.023 +/-  0.003 04-26-01        284        0.024  +/- 0.003                 10-25-01      286     0.036 +/-  0.004 05-03-01        284        0.025  +/- 0.003                 11-01-01      287     0.020 +/-  0.004 05-10-01        287        0.018  +/- 0.003                 11-08-01      284     0.033 +/- 0.004 05-17-01        285        0.016  +/- 0.003                 11-15-01       287    0.039 +/- 0.004 05-24-01        285        0.012  +/- 0.003                 11-21-01       244    0.040 +/- 0.004 05-31-01        285        0.009   +/- 0.003                11-29-01       327    0.030 +/- 0.003 06-06-01        246        0.009  +/- 0.003                 12-06-01       286    0.042  +/- 0.005 06-13-01        284        0.023   +/- 0.003                12-13-01       285    0.031  +/- 0.004 06-21-01        326        0.021   +/- 0.003                12-20-01       286    0.037  +/- 0.004 06-28-01        285        0.023   +/- 0.004                12-27-01       285    0.039  +/- 0.004 01-03-02       286    0.035  +/- 0.004 2nd Quarter Mean +/- s.d.      0.018 +/- 0.006                4th Quarter Mean +/- s.d. 0.033 +/- 0.007 Cumulative Average              0.027 Previous Annual Average         0.027 12- 1

DUANE ARNOLD Table 13. Airborne particulates, analyses for gamma-emitting isotopes.
Collection: Quarterly Composite Units: pCi/m3 Location
_v                                                                 D-1 Quarter                 1st Quarter               2nd Quarter            3rd Quarter       4th Quarter Lab Code                DAP-2829                   DAP-5848              DAP-9171          DAP-1 1849 Volume (m3)                 3710                     3710                   3705              3867 Be-7                  0.054 k 0.017             0.069   1 0.018        0.079     0.016   0.058 +/- 0.014 Nb-95                            0.0007                   0.0012                 0.0015           0.0016 Zr-95                            0.0012                   0.0015                 0.0013           0.0010 Ru-103                           o.0o08                   0.0010                 0.0012           0.0009 Ru-106                           0.0069                   0.0066                 0.0065           0.0055 Cs-134                           0.0004                   0.0008                 0.0010           0.0005 Cs-137                           0.0009                   0.0005                 0.0003            0.0005 Ce-141                           0.0027                   0.0018                 0.0023            0.0013 Ce-144                           0.0053                   0.0050                 0.0043            0.0032 Location                                                           D-2 Quarter                 1st Quarter               2nd Quarter            3rd Quarter       4th Quarter Lab Code                DAP-2830                  DAP-5849               DAP-9172         DAP-11850 Volume (M3 )                3709                     3709                   3714              3997 Be-7                  0.060
* 0.016          0.077
* 0.016        0.065    0.016    0.048    0.014 Nb-95                            0.0007                   0.0012                0.0014            0.0009 Zr-95                            0.0009                   0.0010                0.0010            0.0013 Ru-103                           0.0008                   0.0015                 0.0011           0.0008 Ru-106                           0.0073                   0.0044                 0.0056           0.0073 Cs-134                           0.0004                   0.0004                 0.0011           0.0008 Cs-137                           0.0006                   0.0007                 0.0005            0.0008 Ce-141                           0.0020                   0.0017                 0.0016            0.0015 Ce-144                           0.0051                   0.0049                 0.0054            0.0046 Tx~cetinn                                                     D-3 Location                                                      D-3 Quarter                  Ist Quarter              2nd Quarter            3rd Quarter       4th Quarter Lab Code                 DAP-2831                  DAP-5850               DAP-9173         DAP-1 1851 Volume (m 3)                3712                      3576                   3710              3997 Be-7                  0.048 + 0.015             0.070 - 0.020          0.077 :h 0.018    0.052
* 0.013 Nb-95                            0.0009                   0.0015                 0.0011            0.0007 Zr-95                            0.0078                   0.0023                  0.0016           0.0011 Ru-103                        <C 0.0009                   0.0010                  0.0011           0.0009 Ru-106                           0.0054                   0.0060                  0.0042           0.0045
                              <C Cs-134                           0.0006                   0.0006                  0.0012           0.0007
                              <C Cs-137                           0.0009                   0.0003                  0.0008           0.0004 Ce-141                           0.0023                   0.0016                  0.0020           0.0014 Ce-144                           0.0054                   0.0055                  0.0048           0.0030 13-1

DUANEF ARNOLD Table 13. Airborne particulates, analyses for gamma-emitting isotopes.
Collection: Quarterly Composite Units: pCi/m.3 Location                                                              D-5 Location Quarter                    1st Quarter               2nd Quarter            3rd Quarter       4th Quarter Lab Code                   DAP-2832                 DAP-5851,2               DAP-9174         DAP-1 1852 Volume (m 3 )                 3710                      3714                    3704              3998 Be-7                    0.045 +/- 0.017              0.070 +/- 0.011          0.084 +/- 0.018     0.055 +/- 0.012 0.0006                <                                         K 0.0011 Nb-95                                                       0.0015                  0.0011 Zr-95                              0.0008                < 0.0009                < 0.0012             0.0010
                               < 0.0006                                                            < 0.0011 Ru-103                                                      0.0011               < -0.0009
                               <                         K 0.0052                                  < 0.0047 Ru-106                             0.0062                                        < 0.0045 K                                                                   K 0.0004 Cs-134                             0.0005                < 0.0004                < 0.0010
                               < 0.0003                                                            K 0.0007 Cs-137                                                      0.0003               < 0.0008
                               < 0.0016                     0.0022                  0.0020 Ce-141                                                                                             < 0.0006 Ce-144                             0.0045                   0.0040                  0.0029            0.0026 Location                                                              D-6 Quarter                    1st Quarter               2nd Quarter            3rd Quarter       4th Quarter Lab Code                 DAP-2833,4                  DAP-5853               DAP-9175          DAP-11853 Volume (m3)                   3711                      3638                   3712              3995 Be-7                    0.050 +/- 0.013              0.075
* 0.018         0.072
* 0.019   0.053
* 0.013 K 0.0008                  <                       K                 <  0.0013 Nb-95                                                       0.0013                  0.0008
                               < 0.0014                  K  0.0009               K                    0.0014 Zr-95                                                                               0.0009         K Ru-103                         K                         <                       <  0.0012            0.0010 0.0008                   0.0011                                 K Ru-106                         < 0.0071                  <  0.0056               K  0.0061            0.0056 K 0.0005                  <                       <  0.0010            0.0005 Cs-134                                                      0.0004                                 <
K 0.0006                  <                          0.0009            0.0005 Cs-137                                                      0.0005               K
                               < 0.0011                  <                          0.0026         K  0.0012 Ce-141                                                      0.0022 Ce-144                             0.0039                   0.0056                  0.0057            0.0033 Location                                                              D-7 Quarter                    1st Quarter               2nd Quarter            3rd Quarter       4th Quarter Lab Code                   DAP-2835                   DAP-5854               DAP-9176         DAP-1 1854 Volume   (M 3)                3709                      3709                    3696              3996 Be-7                    0.058
* 0.019           0.087
* 0.019        0.079
* 0.020   0.048
* 0.014 Nb-95                           K  0.0007                    0.0014                 0.0008            0.0005 K  0.0018                    0.0022                  0.0009           0.0014 Zr-95                                                    K                        <                <
K                            0.0010                  0.0012           0.0011 Ru-103                             0.0009                <                                          <
Ru-106                          <  0.0068                    0.0068                  0.0037           0.0048 K                                                                   K Cs-134                             0.0004                    0.0004                  0.0009           0.0008 Cs-137                             0.0005                    0.0005                  0.0007           0.0004
                                <                                                    0.0020           0.0015 Ce-141                             0.0021                    0.0022
                                <                            0.0057                  0.0054           0.0027 Ce-144                             0.0059
:,--2

DUANE ARNOLD Table 13. Airborne particulates, analyses for gamma-emitting isotopes.
Collection: Quarterly Composite Units: pCi/m3 Location                                                            D-8 Quarter                  1st Quarter               2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2836                  DAP-5855               DAP-9177         DAP-1 1855 Volume (M3 )                3709                      3702                   3709             3995 Be-7                  0.057 +/- 0.018              0.090 + 0.018          0.071 +/- 0.020    0.052 +/- 0.012 Nb-95                            0.0007                   0.0017                 0.0013           0.0018 Zr-95                            0.0008                   0.0009                 0.0012           0.0018 Ru-103                           O.*13                    0.0014                 0.0010           0.0013 Ru-106                           0.0091                   0.0073                 0.0049           0.0092 Cs-134                           0.0009                   0.0004                  0.0009          0.0005 Cs-137                           0.0006                   0.0009                  0.0006          0.0007 Ce-141                           0.0013                   0.0027                  0.0021           0.0021 Ce-144                           0.0049                   0.0046                  0.0046           0.0062 Location                                                           D-10 Location Quarter                  1st Quarter               2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2837                  DAP-5856               DAP-9178         DAP-11856 Volume (M 3)                3703                      3391                   3710             3998 Be-7                  0.060
* 0.020           0.096 +/- 0.019          0.076 +/- 0.017    0.058 +/- 0.012 Nb-95                            0.0010                   0.0018                 0.0013           0.0011 Zr-95                            0.0008                   0.0012                 0.0018           0.0021 Ru-103                           0.0008                   0.0012                 0.0010           0.0011 Ru- 106                          0.0059                   0.0052                 0.0045           0.0083 Cs-134                           0.0005                   0.0005                 0.0009           0.0009 Cs-137                           0.0007                   0.0004                 0.0005           0.0006 Ce-141                           0.0022                   0.0029                 0.0021           0.0013 Ce-144                           0.0028                   0.0071                  0.0050          0.0045 Location                                                           D-11 Location Quarter                  1st Quarter               2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2838                   DAP-5857               DAP-9179        DAP-11857 Volume (M3)                  3708                     3703                   3609              3996 Be-7                  0.057
* 0.012           0.069
* 0.016        0.094 E 0.018    0.055
* 0.013 Nb-95                            0.0010                    0.0013                 0.0011           0.0007 Zr-95                            0.0014                    0.0015                 0.0009           0.0010 Ru-103                           0.0008                    0.0011                 0.0008           0.0009 Ru-106                           0.0066                    0.0089                 0.0060           0.0049 Cs-134                           0.0004                    0.0004                 0.0009           0.0008 Cs-137                           0.0009                    0.0008                 0.0003           0.0005 Ce-141                           0.0022                    0.0013                 0.0021           0.0005 Ce-144                           0.0061                    0.0031                 0.0068           0.0018 13-3

DUANE ARNOLD Table 13. Airborne particulates, analyses for gamma-emitting isotopes.
Collection: Quarterly Composite Units: pCi/m3 Location                                                           D-13 Location Quarter                   1st Quarter              2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2839                  DAP-5858               DAP-9180         DAP-1 1858 Volume (m3)                  3711                     3703                   3711             3998 Be-7                   0.061 : 0.015             0.063 +/- 0.016          0.070 +/- 0.015    0.055 +/- 0.014 Nb-95                            0.0016                   0.0014                 0.0011           0.0011 Zr-95                            0.0009                   0.0014                 0.0014           0.0009 Ru-103                                                    0.0009                 0.0012           0.0008 Ru-106                           0.0064                   0.0077                 0.0059           0.0038 Cs-134                           0.0004                   0.0008                 0.0012           0.0006 Cs-137                           0.0005                   0.0006                 0.0005           0.0006 Ce-141                           0.0014                   0.0015                 0.0017           0.0012 Ce-144                           0.0032                   0.0057                 0.0058           0.0045 Location                                                           D-15 Quarter                  1st Quarter               2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2840                  DAP-5859               DAP-9181         DAP-1 1859 Volume (m 3)                 3218                     3455                   3705             3997 Be-7                   0.051 +/- 0.016             0.073 +/- 0.020          0.081 +/- 0.018    0.045 +/- 0.011 Nb-95                            0.0018                   0.0017                 0.0011           0.0008 Zr-95                            0.0016                   0.0012                 0.0009           0.0008 Ru-103                           0.0012                   0.0016                 0.0012           0.0010 Ru-106                           0.0084                   0.0085                 0.0045           0.0060 Cs-134                           0.0004                   0.0004                 0.0010           0.0008 Cs-137                           0.0006                   0.0003                 0.0005           0.0008 Ce-141                           0.0025                   0.0014                 0.0021           0.0012 Ce-144                           0.0073                   0.0055                 0.0049           0.0037 Location                                                           D-16 Quarter                   1st Quarter              2nd Quarter            3rd Quarter      4th Quarter Lab Code                 DAP-2841                   DAP-5860              DAP-9182         DAP- 11860 Volume (m3)                  3712                     3705                   3709             3998 Be-7                   0.055 +/- 0.012             0.067
* 0.016         0.071
* 0.016   0.055
* 0.015 Nb-95                            0.0007                   0.0015                 0.0008           0.0007 Zr-95                            0.0025                   0.0014                  0.0009          0.0024 Ru-103                           0.0015                   0.0009                  0.0009          0.0008 Ru-106                           0.0059                   0.0044                  0.0045          0.0066 Cs-134                           0.0005                   0.0007                  0.0009          0.0008 Cs-137                           0.0008                   0.0005                  0.0004          0.0008 Ce-141                           0.0011                   0.0013                  0.0017          0.0009 Ce-144                           0.0029                   0.0053                  0.0053          0.0044 13-4

DUANE ARNOLD Table 14. Area monitors (TLD), Quarterly Units: mRI9l days Air Stations             Is LDQar            2nd Qt.                4thQtr.
D-1 (C)                 12.1 +/- 0.4          13.2  +/- 0.4  12.4 +/- 0.3 14.1  +/-0.4 D-2 (C)                 13.5 +/- 0.2          14.0  +/-0.2   13.8 +/- 0.2 15.9  +/- 0.4 D-3                     13.5 +/- 0.2          14.3  +/- 0.2  12.6 +/- 0.3 15.2  +/- 0.5 D-5                     13.2-_ 0.2          15.9  +/-0.2   13.9 +/- 0.2 17.6  +/- 0.4 D-6                     13.2 +/- 0.2          16.3  +/- 0.2  14.7 +/- 0.2 18.5  +/- 0.4 D-7                     11.4 +/--0.2          13.2  +/- 0.2  14.5 +/-0.2  17.3  +/- 0.3 D-8                     16.1 +/- 0.2          20.2  +/- 0.2  17.9 +/- 0.2 21.8  +/- 0.3 D-10                    15.3 +/-h 0.2         18.8  +/- 0.2  16.3 +/- 0.3 19.6  +/- 0.3 D-11                    11.7 +/- 0.2          14.2  +/-h 0.2 12.9 +/-0.3  15.7  +/- 0.6 D-13 (C)                12.1 +/- 0.3          16.3  +/- 0.2  14.5 +/- 0.2 18.5  +/- 0.3 D-15                    13.6 +/- 0.2          15.5  +/- 0.2  14.5 +/- 0.2 17.7  +/- 0.4 D-16                    13.9 +/- 0.2          14.3  +/- 0.2  14.9 +/- 0.2 16.0  +/- 0.5 Mean +/- s.d.            13.3 +/- 1.4          15.5 +/- 2.2   14.4 +/- 1.5 17.3 +/- 2.1 Within 0.5 mi. of Stack D-18                    17.5 +/- 0.2          13.8 +/-0.2    15.0 +/- 0.2 16.8 +/- 0.3 D-19                    16.5 +/- 0.2          14.6 +/- 0.2   14.7 +/- 0.2 15.7 +/- 0.6 D-20                    18.8 +/- 0.2          15.1 +/- 0.2   16.4 +/- 0.3 18.3 +/- 0.4 D-21                    18.9 +/- 0.2          14.6 +/- 0.2   17.5 +/- 0.2 18.1 +/-0.4 D-22                    14.6 +/- 0.2              NDa      16.0 +/- 0.4 14.7 +/- 0.4 D-23                    13.9 +/- 0.2          13.2 +/-0.4    14.2 +/- 0.2 14.9 +/- 0.3 D-28                    14.0 +/-h 0.2         18.8 +/- 0.2   17.7 +/- 0.2 20.6 +/- 0.6 D-29                    15.0 +/- 0.2          20.3 +/- 0.2   20.2 +/- 0.3 22.5 +/- 0.4 D-30                    15.8 +/- 0.3          19.3 +/- 0.2   20.1 +/- 0.3 20.1 +/--0.4 D-31                    20.7 +/- 0.2          23.1 +/- 0.2   20.4 +/- 0.3 24.6 +/- 0.4 D-32                    18.5 +/- 0.2          20.7 +/- 0.2   20.4 +/- 0.2 24.2 +/- 0.4 D-82                    14.2 +/- 0.2          13.3 +/- 0.4   15.0 +/- 0.2 18.3 +/- 0.3 D-83                    14.8 +/- 0.2              NDO      15.7 +/- 0.3 15.7 +/- 0.5 D-84                    14.4 +/--0.2          15.1 +/- 0.2   16.4 +/-0.5  18.3 +/- 0.3 D-85                    13.9 +/-0.2           15.0 +/- 0.2   16.2 +/- 0.3 18.3 +/- 0.4 D-86                    15.6  +/-0.3          15.8 +/- 0.2   17.9 +/- 1.3 18.3 +/- 0.4 D-91                    14.3  +/-0.2          16.3 +/--0.2   17.8 +/- 0.3  19.1 +/- 0.4 Mean +/- s.d.           16.0 +/-2.1            16.6 :E 3.1 17.2 +/- 2.1  18.7 +/- 2.9
' Both regular and emergency TLD missing.
14!-1

DU       NLD Table 14. Area monitors (TLD), Quarterly Units: mRI9l days Within 1.0 mi. of       I..QIL               2ndQt.
Stack D-43                   13.2 +/- 0.2           15.0 +/- 0.2     15.4 +/- 0.2  17.7 +/- 0.4 D-44                   16.7 +/- 0.2           20.1 +/-0.2      18.0 *0.2   21.8 +/- 0.3 D-45                   13.5 +/- 0.2           13.3 +0.2      15.2
* 0.3  15.4 *0.6 D-46                   14.9S-0.2       *-   19.7 +/-0.2      17.9 :- 0.3 22.7
* 0.3 D-47                   15.6 +/- 0.3           20.1 +/-0.2      l .0 =0.3   22.5 - 0.4 D-48                   15.0 +/- 0.2           19.3 +/- 0.2     19.2 -0.2   22.8 + 0.3 Mean +/- s.d.           14.8 +/- 1.3           17.9 +/-3.0      17.3 - 1.6  20.5 *3.2 Within 3.0 mi. of Stack D-33                   12.1  +/- 0.2          14.7 +/- 0.3     13.7 +/- 0.2  16.4 +/- 0.3 D-34                   12.0  +/- 0.3          15.9 -0.2      13.6 +/- 0.2  14.1 +/- 0.5 D-35                   12.8
* 0.2          14.2
* 0.2     13.9 *L0.2  15.7 +/- 0.5 D-36                   12.1  +/- 0.3          15.1 *0.2      14.5 +/- 0.2  18.3 +/- 0.3 D-37                   15.9  +/- 0.2          17.7 - 0.4     18.4 +/- 0.2  20.7 *b0.6 D-38                   13.2  +/- 0.2          15.9 *0.2      16.1 +/- 0.6  18.8
* 0.4 D-39                   13.9  +/- 0.2          16.3 *0.2      16.6 +/- 0.2  17.5
* 0.3 D-40                   11.4  +/-*0.2          13.3 *0.2      12.9
* 0.3  14.2
* 0.3 D-41                   13.7  *b0.2              ND1        15.6
* 0.3  14.1 *-0.4 D-42                    14.0 +/- 0.2              NDS        14.0
* 0.2  15.3
* 0.5 Mean =*s.d.           13.1
* 1.3           15.4
* 1.4    14.9
* 1.7 16.5
* 2.3 "Both regular and emergency TLD missing.
b Regular TLD missing; read from emergency TLD.
Iq.- -2

DUANE ARNOLD Table 15. Milk samples, analyses for iodine-131 and gamma emitting isotopes.
Collection: Monthly during non-grazing season (October 1 through April 30): biweekly during grazing season (May 1 through September 30)
Location                                              D-93 Date            Lab                           Concentration (pCi/L)
Collected          Code         1-131        K-40        Cs-134     Cs-137    Ba-140      La-140 01-09-01        DMI -80         < 1.0     1797 +/- 199       < 15      < 18       <60        < 15 02-06-01        DMI -860        < 1.0     1300 +/- 114       < 15      < 18       < 60       < 15 03-06-01        DMI -1569       < 1.0     1469.+/--162       < 15      < 18       < 60       < 15 04-03-01        DMI -2425 -- <1.0        -J551 +/- 144       < 15      < 18       <60        < 15 05-01-01        DMI -3400       < 1.0     1631 +/- 135       < 15      < 18       < 60       < 15 05-15-01        DMI -3907       < 1.0     1865 +/- 111       < 15      < 18       < 60       < 15 06-12-01        DMI -4765       < 1.0     1748 +/- 126       < 15       < 18      < 60       < 15 06-26-01        DMI -5210       < 1.0     1667 +/- 127       < 15      < 18       < 60       < 15 07-10-01        DMI -5714       < 1.0     1857 +/- 213       < 15      < 18       < 60       < 15 07-24-01        DMI -6381       < 1.0     1631 +/- 128       < 15      < 18       < 60       < 15 08-07-01        DMI -6904       < 1.0     1594 *236        < 15      < 18       <60        < 15 08-21-01        DMI -7257       < 1.0     1625 +/- 196       < 15      < 18       < 60       < 15 09-05-01        DMI -7722       < 1.0     1787 +/- 135       < 15      < 18       <60        < 15 09-18-01        DMI -8113       < 1.0     1755 J- 129      < 15      < 18       <60        < 15 10-02-01        DMI -8611       < 1.0     1810
* 137       < 15      < 18      < 60        < 15 11-06-01        DMI -10164      < 1.0     1682
* 130       < 15      < 18       < 60       < 15 12-04-01                NS"        -                         -          -         -
Location                                              D-96 Date            Lab                           Concentration (pCi/L)
Collected          Code         1-131        K-40         Cs-134    Cs-137    Ba-140      La-140 01-09-01        DMI -81         < 1.0     1275
* 114       < 15       < 18      <60        < 15 02-06-01        DMI -861         < 1.0    1363*111         < 15       < 18      < 60       < 15 03-06-01        DMI -1570        < 1.0    1394
* 115       < 15       < 18      <60        < 15 04-03-01        DMI -2426        < 1.0    1320
* 123       < 15       < 18      < 60       < 15 05-01-01        DMI -3401        < 1.0     1246
* 178      < 15       < 18      < 60       < 15 05-15-01        DMI -3908        < 1.0     1395
* 113      < 15       < 18      < 60       < 15 06-12-01        DMI -4766        < 1.0     1491 +/- 180      < 15       < 18      <60        < 15 06-26-01        DMI -5211        < 1.0     1376 *E190      < 15       < 18      < 60       < 15 07-10-01        DMI -5715        < 1.0     1346
* 168      < 15        < 18     < 60       < 15 07-24-01        DMI -6382        < 1.0     1402
* 129      < 15        < 18     < 60       < 15 08-07-01        DMI -6905        < 1.0     1192 165        < 15        < 18     < 60       < 15 08-21-01        DMI -7258        < 1.0     1385 188        < 15        < 18     < 60       < 15 09-05-01        DMI -7723        < 1.0     1483 *123       < 15        < 18     < 60       < 15 09-18-01        DMI -8114        < 1.0     1418 109        < 15        < 18     < 60        < 15 10-02-01       DMI -8612        < 1.0     1466 214        < 15        < 18     < 60        < 15 11-06-01       DMI 10165,6      < 1.0     1385 *103       < 15        < 18     < 60        < 15 12-04-01       DMI -10755       < 1.0     1264 183        < 15        < 18      < 60       < 15 3
NS= No sample; sample not available. See Table 2.0, "Listing of Missed Samples."
15-1

DUANT ARNOLD Table 15. Milk samples, analyses for iodine-131 and gamma emitting isotopes.
Collection: Monthly during non-grazing season (October 1 through April 30): biweekly during grazing season (May 1 through September 30)
Location                                                 D- 101 Date             Lab                              Concentration (pCi/L)
Collected          Code          1-131           K-40         Cs-134     Cs-137   Ba-140   La-140 01-09-01                 NSa                                     -
02-06-01                 NSa                                     -          -
03-06-01                 NSa                       -                  -         -
04-03-01                 NS        -       - -_-                                     -
05-01-01        DMI   -3402      <  1.0       1449-169         < 15       < 18     < 60     < 15 05-15-01        DMI   -3909      <  1.0       1708.+/--107       < 15       < 18     < 60     < 15 06-12-01        DMI   -4767      <  1.0       1396 +/- 181       < 15       < 18     < 60     < 15 06-26-01        DMI   -5212      <  1.0       1435*179         < 15        < 18    < 60     < 15 07-10-01        DMI   -5716      <  1.0       1377 +/- 121       < 15        < 18    < 60     < 15 07-24-01        DM1   -6383      <  1.0       1452 +/- 197       < 15        < 18    < 60     < 15 08-07-01        DMI   6906,7     <  1.0       1573 +/- 127       < 15        < 18    < 60     < 15 08-21-01        DMI   -7259      <  1.0       1184 +/- 141       < 15        < 18    < 60     < 15 09-05-01        DMI   -7724      <  1.0       1381 +/- 133       < 15       < 18     <60      < 15 09-18-01        DMI   -8115      <  1.0       1464 +/- 107       < 15       < 18     < 60     < 15 10-02-01       DMI   -8613      <  1.0       1718
* 181       < 15       < 18     < 60     < 15 11-06-01        DMI  -10167     <  1.0       1060*159         < 15       < 18     < 60     < 15 12-04-01                 NSa       -                            -          -        -
Location                                                 D-105 Date             Lab                              Concentration (pCi/L)
Collected          Code          1-131           K-40         Cs-134     Cs-137   Ba-140   La-140 01-09-01        DMI   -82        < 1.0       1430
* 112       < 15        < 18    < 60     < 15 02-06-01        DMI   -862       < 1.0       1341
* 127       < 15        < 18    < 60     < 15 03-06-01        DMI   -1571      < 1.0       1404 +/- 146       < 15        < 18    < 60      < 15 04-03-01        DMI   -1571      < 1.0       1251
* 130       < 15        < 18    < 60      < 15 05-01-01        DMI   -3403      < 1.0       1444
* 145       < 15        < 18    < 60      < 15 05-15-01        DMI   -3910      < 1.0       1336
* 143       < 15        < 18     <60      < 15 06-12-01        DMI   4768       < 1.0       1281
* 158       < 15        < 18     <60      < 15 06-26-01        DMI   -5213      < 1.0       1502*133         < 15        < 18     < 60     < 15 07-10-01                 NS"        -             --                                  -
07-24-01        DMI -6384        < 1.0       1378 163         < 15        < 18     < 60     < 15 08-07-01        DMI -6908        < 1.0       1346 *231         < 15       < 18     < 60     < 15 08-21-01        DMI -7260        < 1.0       1296 185          < 15       < 18     < 60     < 15 09-05-01                 NS"               -                      -          -        -
09-18-01                 NS         -                    -           -
10-02-01                  NS        -             -
"NS=No sample; sample not available. See Table 2.0, "Listing of Misssed Samples."
15-2

DUANE ARNOLD Table 15. Milk samples, analyses for iodine-131 and gamma emitting isotopes.
Collection: Monthly during non-grazing season (October 1 through April 30): biweekly during grazing season (May I through September 30)
Location                                               D-108a Date             Lab                            Concentration (pCi/L)
Collected          Code         1-131         K-40        Cs-134      Cs-137  Ba-140      La-140 09-18-01        DMI   -8116      < 1.0     1234  = 105     <15         <18      < 60       <15 10-02-01        DMI   -8614      < 1.0     1504  +/- 132     <15         <18      < 60       <15 11-06-01        DMI   -10168     < 1.0     1543 +/- 170      <15         <18      < 60       <15 12-04-01        DMI   -10756     < 1.0     1331 +/- 164      <15         <18      < 60       <15 aNew location; Mcnulty (C).
15-3

DUANE ARNOLD Table 16. Well water samples, analyses for gross beta and tritium.
Collection: Quarterly Units: pCi/L Location                                   D-53 Treated Municipal Water Period                  1st Qtr.               2nd Qtr.               3rd Qtr. 4th Qtr.
Lab Code             DWW-2353                DWW-5244               DWW-8512    DWW-10523 Gross Beta            2.8 +/- 0.6               1.9 +/- 0.5              2.5 +/- 0.6    2.9 +/- 0.7 H-3                        < 162                  < 175                  < 156        < 155 Location                                   D-54 Inlet to Municipal Water Period                  1st Qtr.               2nd Qtr.               3rd Qtr. 4th Qtr.
Lab Code             DWW-2354                DWW-5245               DWW-8513    DWW-10524 Gross Beta            2.5 +/- 0.6               3.1 A: 0.5             3.2 +/- 0.6    3.6 +/- 0.7 H-3                        < 162                  < 175                   < 156       < 155 Location                                          D-55 On-site Well Period                  1st Qtr.               2nd Qtr.               3rd Qtr. 4th Qtr.
Lab Code             DWW-2355                DWW-5214               DWW-8514    DWW-10525 Gross Beta                 < 0.9                  < 0.9                  < 0.9        < 0.9 H-3                        < 162                  < 175                   < 156       < 155 Location                                            D-57 Bull Farm Period                  1st Qtr.               2nd Qtr.                3rd Qtr. 4th Qtr.
Lab Code            DWW-2356,7               DWW-5215               DWW-8515    DWW-10526 Gross Beta            1.3 +/- 0.3               1.5 +/- 0.5              1.6 +/- 0.6    1.5 + 0.6 H-3                        < 162                  < 175                   < 156        < 155 Location                                           D-58 Franz Farm Period                  1st Qtr.               2nd Qtr.                3rd Qtr. 4th Qtr.
Lab Code             DWW-2358                DWW-5216               DWW-8516    DWW-10527,8 Gross Beta            8.6 +/- 0.8               5.6 +/- 0.7              6.5 +/- 0.7    6.1 +/- 0.6 H-3                        < 162                  < 175                   < 156        < 155 Location                                         D-72 Van Note Farm Period                  1st Qtr.               2nd Qtr.                3rd Qtr. 4th Qtr.
Lab Code             DWW-2359               DWW-5217,8              DWW-8517     DWW-10529 Gross Beta                 < 0.8              0.9 +/- 0.4              2.0 +/- 0.6         < 1.1 H-3                        < 162                   < 175                  < 156        < 155 16-1

DUANE ARNOLD Table 17. Vegetation (broadleaf), analyses for iodine-131 and other gamma-emitting isotopes.
Collection: Annually Units: pCi/g wet Indicator Location                D-93                 D-94                  D-101 Lab Code                                  DVE-5717 Date Collected                             7/10/01 Sample Type                              Green Leafy K-40                                       4.11 +/- 0.90 Mn-54                                            < 0.034 Co-58                                            < 0.032 Co-60                                            < 0.021 Nb-95                                            < 0.042 Zr-95                                            < 0.074 Ru-103                                           < 0.034 Ru-106                                           < 0.39 1-131                                            < 0.042 Cs-134                                           < 0.014 Cs-137                                           < 0.021 Ce-141                                           < 0.046 Ce-144                                           < 0.108 Control Location               D-105 Lab Code             DVE-5718 Date Collected        7/10/01 Sample Type         Green Leafy K-40                3.38 +/- 0.67 Mn-54                    < 0.014 Co-58                    < 0.015 Co-60                    < 0.024 Nb-95                    < 0.018 Zr-95                    < 0.026 Ru-103                   < 0.019 Ru-106                   < 0.26 1-131                    < 0.019 Cs-134                   < 0.014 Cs-137                   < 0.031 Ce-141                   < 0.026 Ce-144                   <  0.106 17-1

DUANE ARNOLD Table 18. Vegetation (hay and grain), analyses for gamma-emitting isotopes.
Collection: Annually Units: pCi/g wet Location                D-16               D-57               D-58              D-58           D-72 Lab Code             DVE-8902           DVE-8903           DVE-8905          DVE-8904       DVE-8907 Date Collected         10/4/01            10/4/01            9/25/01           10/4/01        9/25/01 Sample Type           Soybeans             Corn               Hay               Corn            Hay K-40                8.07 +/- 1.3-5       3.25 +/- 0.43        4.33 +/- 0.69       2.47 +/- 0.34   19.86 +/- 2.08 Mn-54                    < 0.039            < 0.014             < 0.025          < 0.016        < 0.068 Co-58                    < 0.051            < 0.013             < 0.013          < 0.012        < 0.077 Co-60                    < 0.045            < 0.017             < 0.020          < 0.005        < 0.046 Nb-95                    < 0.043            < 0.009             < 0.023          < 0.014        < 0.077 Zr-95                    < 0.099            < 0.022             < 0.036          < 0.021        < 0.145 Ru-103                   < 0.054            < 0.010             < 0.024          < 0.011        < 0.067 Ru-106                   < 0.45             < 0.15              < 0.17           < 0.12         < 0.554 Cs-134                   < 0.027            < 0.009             < 0.033          < 0.012        < 0.042 Cs-137                   < 0.044            < 0.014             < 0.036          < 0.014        < 0.070 Ce-141                   < 0.057            < 0.017             < 0.045          < 0.014        < 0.138 Ce-144                   < 0.16             < 0.044             < 0.11           < 0.052        < 0.40 Location                D-72               D-93              D-108             D-108 Lab Code             DVE-8906           DVE-8908           DVE-8909          DVE-8910 Date Collected         10/4/01            10/2/01            10/2/01           10/2/01 Sample Type             Corn               Hay                Corn               Hay K-40                2.50 +/- 0.30       10.76 +/- 0.77        2.95 +/- 0.34       6.87 +/- 0.50 Mn-54                    < 0.007            < 0.027             < 0.013          < 0.024 Co-58                    < 0.012            < 0.028             < 0.008           < 0.028 Co-60                    < 0.018            < 0.029             < 0.009           < 0.029 Nb-95                     < 0.010           < 0.029             < 0.009           < 0.028 Zr-95                     < 0.032           < 0.054             < 0.028           < 0.041 Ru-103                    < 0.014           < 0.027             < 0.011           < 0.028 Ru-106                    < 0.13            < 0.20              < 0.087           < 0.15 Cs-134                    < 0.014           < 0.032             < 0.009           < 0.034 Cs-137                    < 0.015            < 0.026            < 0.011           < 0.029 Ce-141                    < 0.019            < 0.042            < 0.016           < 0.046 Ce-144                    < 0.085            < 0.099            < 0.091           < 0.16 18-1

DUANE ARNOLD Table 19. Surface water samples, analyses for iodine-131 and gamma-emitting isotopes.
Collection Monthly Units:     pCi/L Location: D-49 Date Collected         01-15-01        02-19-01         03-14-01     04-18-01        05-09-01   06-26-01 Lab Code               DSW-242        DSW-1321        DSW-1999     DSW-3072        DSW-3825    DSW-5242 Mn-54                     < 15           < 15             < 15         < 15             < 15      < 15 Fe-59                     <30            <30              <30          < 30             <30       <30 Co-58                     < 15           < 15             < 15         < 15             < 15      < 15 Co-60                     < 15           < 15             < 15         < 15             < 15      < 15 Zn-65                     <30            < 30             <30          <30              < 30      < 30 Nb-95                     < 15           < 15             < 15         < 15             < 15      < 15 Zr-95                     <30            < 30             <30          <30              <30       <30 1-131                     < 15           < 15             < 15         < 15             < 15      < 15 Cs-134                    < 15           < 15             < 15         < 15             < 15      < 15 Cs-137                    < 15           < 15             < 15         < 15             < 15      < 15 Ba-140                    < 60           < 60             < 60         < 60             < 60      < 60 La-140                    < 15           < 15             < 15         < 15             < 15      < 15 Date Collected         07-24-01        08-08-01         09-24-01     10-10-01         11-13-01  12-11-01 Lab Code              DSW-6642        DSW-7033         DSW-8518     DSW-9002       DSW-10518   DSW-10987 Mn-54                     < 15           < 15             < 15         < 15             < 15      < 15 Fe-59                     < 30           <30              < 30         <30              < 30      <30 Co-58                     < 15           < 15             < 15         < 15             < 15      < 15 Co-60                     < 15           < 15             < 15         < 15             < 15      < 15 Zn-65                     <30            <30              < 30         <30              <30        <30 Nb-95                     < 15            < 15            < 15         < 15             < 15       <15 Zr-95                     < 30            <30             <30          <30              <30       <30 1-131                     < 15            < 15             < 15        < 15             < 15       < 15 Cs-134                    < 15            < 15             < 15        < 15             < 15       < 15 Cs-137                   < 15            < 15             < 15         < 15             < 15      < 15 Ba-140                     < 60           < 60             < 60         < 60             < 60      <60 La-140                    < 15           < 15             < 15         < 15             < 15      < 15 19-1

DU.-"'4E ARNOLD Table 19. Surface water samples, analyses for iodine-131 and gamma-emitting isotopes.
Collection Monthly Units:     pCi/L Location: D-50 Date Collected          01-15-01        02-19-01        03-14-01     04-18-01        05-09-01   06-15-01 Lab Code                DSW-243        DSW-1322        DSW-2000     DSW-3073        DSW-3826   DSW-5219 Mn-54                     <15              <15            <15          <15             < 15       <15 Fe-59                     <30              <30            <30          <30             <30        <30 Co-58                     <15              <15            <15          <15             <15        <15 Co-60                     <15              <15            <15          <15             <15        <15 Zn-65                     <30              <30            < 30         <30             <30        <30 Nb-95                     <15              <15            <15          < 15            <15        <15 Zr-95                     <30              <30            <30          <30             <30        <30 1-131                     <15              <15            < 15         <15             <15        <15 Cs-134                    <15             <15             <15          <15             <15        <15 Cs-137                    <15             <15             <15          <15             <15        <15 Ba-140                    < 60            < 60            < 60         < 60            < 60       < 60 La-140                    <15             <15             <15          <15             <15        <15 Date Collected          07-24-01        08-08-01        09-24-01     10-10-01        11-13-01   12-11-01 Lab Code               DSW-6643       DSW-7034         DSW-8519    DSW-9003        DSW-10519  DSW-10988 Mn-54                     <15             <15             < 15         <15             <15        <15 Fe-59                     <30             <30             <30          <30             < 30       <30 Co-58                     <15             <15             <15          <15             <15        <15 Co-60                     <15             <15             <15          <15             <15        <15 Zn-65                     < 30            < 30            <30          <30             <30        < 30 Nb-95                     <15             <15             <15          <15             <15        <15 Zr-95                     < 30            <30             < 30         <30             <30        <30 1-131                     <15             <15             <15          < 15            <15        <15 Cs-134                    <15             <15             <15          <15             <15        < 15 Cs-137                    <15             <15             <15          <15             <15        < 15 Ba-140                    < 60            < 60            < 60         < 60            < 60       < 60 La-140                    <15             < .1            <15          <15             <15        <15 19-2

DUANT ARNOLD Table 19. Surface water samples, analyses for iodine-131 and gamma-emitting isotopes.
Collection Monthly Units:     pCi/L Location: D-51 Date Collected         01-15-01        02-19-01         03-14-01    04-18-01          05-09-01  06-15-01 Lab Code              DSW-244         DSW-1323         DSW-2001    DSW-3074        DSW-3827    DSW-5220 Mn-54                     <15            < 15             < 15         < 15             <15       <15
                          < 30           <30              <30          <30              <30       < 30 Fe-59
                          <15            <15              < 15         <15              <15        < 15 Co-58
                          <15            <15              <15          < 15             <15        <15 Co-60
                          <30            <30              <30          <30              < 30       <30 Zn-65
                          < 15           < 15             < 15         < 15             <15        <15 Nb-95
                          <30            <30              <30          <30              <30        <30 Zr-95 1-131                     <15            <15              <15          < 15             <15       <15 Cs-134                    <15            <15              <15          <15              <15       < 15
                          < 15           < 15             <15          <15              <15       < 15 Cs-137
                          < 60           < 60             < 60         < 60             < 60       < 60 Ba-140
                          <15            <15              <15          <15              <15        <15 La-140 07-24-01       08-08-01         09-24-01     10-10-01         11-13-01   12-11-01 Date Collected Lab Code              DSW-6644        DSW-7035         DSW-8520    DSW-9004,5      DSW-10520   DSW-10989
                          <15             <15              < 15        <15              <15        <15 Mn-54
                          <30             <30              <30         <30              <30        <30 Fe-59
                          <15             <15              <15         <15              <15        < 15 Co-58
                          <15             <15              <15         <15               <15       < 15 Co-60
                          <30             <30              <30         <30               <30       <30 Zn-65
                          < 15            <15              <15         <15               <15       <15 Nb-95
                          <30             <30              <30         <30               <30       <30 Zr-95
                          <15             <15              <15          < 15             <15       < 15 1-131
                           <15            <15              <15          <15              <15       <15 Cs-134
                           <15            <15              < 15         < 15             <15        <15 Cs-137
                           < 60           < 60             < 60         < 60             < 60       < 60 Ba-140
                           <15            <15              <15          < 15             <15        <15 La-140 19-3

DUTANE ARNOLD Table 19. Surface water samples, analyses for iodine-131 and gamma-emitting isotopes.
Collection Monthly Units:     pCi/L Location: D-99 Date Collected         01-15-01        02-19-01         03-14-01    04-18-01          05-09-01  06-26-01 Lab Code              DSW-245         DSW-1324        DSW-2002     DSW-3075        DSW-3828    DSW-5243 Mn-54                    <15             <15              < 15        <15               <15       <15 Fe-59                    <30             <30              <30         <30               <30       <30 Co-58                    <15             <15              < 15        <15               <15       <15 Co-60                    <15             <15              <15         <15               < 15      <15 Zn-65                    <30             <30              <30          <30              <30       <30
                         <15             < 15             <15          < 15             <15       <15 Zr-9"                    <30             <30              <30          <30              < 30      <30 1-131                    <15             <15              <15         <15               <15       <15 Cs-134                   <15             <15              <15         <15               <15       <15 Cs-137                   <15             <15              <15         <15               <15       <15 Ba-140                   < 60            < 60             < 60        < 60              < 60      <60 La-140                   <15             <15              < 15        <15               <15       <15 Date Collected         07-24-01        08-08-01         09-24-01    10-10-01          11-13-01  12-11-01 Lab Code              DSW-6645        DSW-7036         DSW-8521    DSW-9006        DSW-10521   DSW-10990 Mn-54                     <15            <15              <15          <15              <15       <15 Fe-59                     <30            <30              < 30         <30              <30       <30 Co-58                     <15            <15              <15          <15              <15       <15 Co-60                     <15            <15              <15          <15              <15       <15 Zn-65                     < 30           <30              <30          < 30             < 30      < 30 Nb-95                     <15            <15              <15          <15              <15        <15 Zr-95                     < 30           < 30             <30          <30              <30        <30 1-131                     <15            <15              <15          < 15             <15        <15 Cs-134                    <15            <15              <15          <15              < 15       <15 Cs-137                    <15             <15             <15          <15               < 15      <15 Ba-140                    < 60            < 60             < 60        < 60              < 60      <60 La-140                    <15             <15              <15         <15               < 15      < 15 19-4

DUANE ARNOLD Table 20. Surface water, analyses for potassium-40 by flame photometry and gamma-emitting isotopes.
Collection: Monthly Units: pCi/L Location: D-107 Date Collected         01-15-01         02-19-01       03-14-01       04-18-01      05-09-01        06-26-01 Lab Code              DSW-246          DSW-1325       DSW-1325       DSW-3076     DSW-3829         DSW-5221 K-40 (fp)                 25.1            26.8            23.4          28.5          30.3             20.8 Mn-54                    <15              <15             <15           <15           < 15             <15 Fe-59                    <30              <30             <30           <30           <30              <30 Co-58                    <15              <15             <15           <15           <15              <15 Co-60                    <15              <15             <15           <15           <15              <15 Zn-65                    <30              <30             <30           <30           <30              <30 Nb-95                    <15              <15             <15           <15           <15              <15 Zr-95                    <30              <30             <30           <30           <30              <30 1-131                    <15              <15             <15           <15           <15              <15 Cs-134                   <15              <15             <15           <15           <15              <15 Cs-137                   <15              <15             <15           <15           <15              <15 Ba-140                   < 60             < 60            < 60          < 60          < 60             < 60 La-140                   <15              <15             <15           <15           <15              <15 Date Collected         07-24-01         08-08-01       09-24-01       10-10-01      11-13-01        12-11-01 Lab Code              DSW-6646         DSW-7037       DSW-8522       DSW-9007     DSW-10522       DSW-10991 K-40 (fp)                  8.7             9.5            12.1           16.4         19.9             18.9 Mn-54                    <15              <15             <15           <15           <15              <15 Fe-59                    <30              <30             <30           <30           <30              <30 Co-58                    <15              <15             <15           <15           <15              <15 Co-60                     <15             <15             <15            < 15         <15              <15 Zn-65                     <30             <30             <30            <30          <30              <30 Nb-95                     <15              <15            <15            <15          <15              <15 Zr-95                     <30              < 30           <30            <30          <30              <30 1-131                     <15              <15            <15            <15          <15              <15 Cs-134                    <15              <15            <15            <15          <15              <15 Cs-137                    < 15             <15            <15            <15          <15              < 15 Ba-140                    < 60             < 60           < 60           < 60         < 60             < 60 La-140                    <15              <15            <15            <15          <15              <15 20-1

DUANE ARNOLD Table 21. Surface water, analysis for tritium.
Collection: Quarterly composites of monthly samples.
Units: pCi/L Location                                                 D-49 Period                  1st Qtr.                2nd Qtr.        3rd Qtr. 4th Qtr.
Lab Code              DSW-2537                 DSW-5246        DSW-8525  DSW-11679 H-3                       < 184                   < 175            < 156      < 160 Location                                                 D-50 Period                  1st Qtr.                2nd Qtr.        3rd Qtr. 4th Qtr.
Lab Code              DSW-2538                 DSW-5247        DSW-8526  DSW-11680 H-3                        < 184                   < 175           < 156      < 160 Location                                                 D-51 Period                  1st Qtr.                2nd Qtr.        3rd Qtr. 4th Qtr.
Lab Code              DSW-2539                 DSW-5248        DSW-8527  DSW- 11681 H-3                        < 184                   < 175           < 156      < 160 Location                                                 D-99 Period                  1st Qtr.                2nd Qtr.        3rd Qtr. 4th Qtr.
Lab Code              DSW-2540                 DSW-5249        DSW-8528  DSW-1 1682 H-3                        < 184                   < 175           < 165      < 160 Location                                                 D-107 Period                  1st Qtr.                2nd Qtr.        3rd Qtr. 4th Qtr.
Lab Code              DSW-2541                 DSW-5250        DSW-8529  DSW-11683 H-3                        < 184                   < 175           < 165      < 160 21-1

DUANE ARNOLD Table 22. Fish, analyses of edible portion for gamma-emitting isotopes.
Collection: Semiannually Units: pCi/g wet Location                                         Upstream, D-49 Lab Code                 DF-6702              DF-6703             DF-8917        DF-8918 Date Collected           7/30/01              7/30/01             9/27/01        9/27/01 Sample Type                Carp             Carpsucker              Carp       Carpsucker K-40                   2.10 -t 0.22         2.88 + 0.28         2.90 - 0.35    3.34 + 0.51 Mn-54                          0.010                0.007               0.012         0.019 Fe-59                          0.013                0.020               0.017         0.046 Co-58                          0.007                0.011               0.006         0.018 Co-60                          0.009                0.006               0.008         0.010 Zn-65                          0.021                0.020               0.027         0.047 Nb-95                          0.007                0.011               0.014         0.023 Zr-95                          0.016                0.019               0.017         0.028 Ru-103                         0.007                0.012               0.008         0.017 Ru-106                         0.058                0.063               0.110         0.122 Cs-134                         0.010                0.011               0.005         0.027 Cs-137                         0.009                0.007               0.010         0.018 Ce-141                         0.018                0.023               0.013         0.019 Ce-144                         0.032                0.039               0.033         0.090 Location                                       Downstream, D-61 Lab Code                 DF-6704              DF-6705             DF-8919        DF-8920 Date Collected           7/30/01              7/30/01             9/27/01        9/27/01 Sample Type                Carp                Buffalo              Carp       Carpsucker K-40                   2.97 _ 0.26          3.04  +/- 0.24        3.02 _ 0.40    2.96 + 0.43 Mn-54                          0.008                 0.010              0.007         0.010 Fe-59                          0.025                 0.011              0.039         0.022 Co-58                          0.008                 0.011              0.016         0.013 Co-60                          0.006                 0.008              0.011         0.016 Zn-65                          0.017                 0.014              0.020         0.026 Nb-95                          0.012                 0.008              0.014         0.017 Zr-95                          0.021                 0.013              0.015         0.035 Ru-103                         0.009                 0.011              0.015         0.013 Ru-106                         0.034                 0.048              0.095         0.137 Cs-134                         0.009                 0.009              0.010         0.012 Cs-137                         0.008                 0.004               0.009        0.016 Ce-141                         0.015                 0.024               0.032        0.016 Ce-144                         0.035                 0.049               0.100        0.057 22-1

DUANE ARNOLD Table 23. River sediment, analysis for gamma-emitting isotopes.
Collection: Semiannually Units: pCi/g dry Location                                            D-50 Lab Code                         DBS-4232                     DBS-8911 Date Collected                    5/23/01                       9/26/01 K-40                            7.59 _ 0.43                  7.90 _ 0.61 Mn-54                                    0.012                       0.019 Fe-59                                    0.027                       0.047 Co-58                                    0.010                       0.017 Co-60                                    0.010                       0.014 Zn-65                                    0.027                       0.042 Nb-95                                    0.018                       0.032 Zr-95                                    0.028                       0.037 Ru-103                                   0.014                       0.020 Ru-106                                   0.076                       0.130 Cs-134                                   0.009                       0.025 Cs-137                         0.029+/- 0.012                          0.020 Ce-141                                   0.035                       0.030 Ce-144                                   0.049                       0.088 Location                                            D-51 Lab Code                         DBS-4233,4                   DBS-8912 Date Collected                    5/23/01                       9/26/01 K-40                            7.99 _ 0.38                  7.41 -t 0.56 Mn-54                                    0.013                       0.015 Fe-59                                    0.040                       0.026 Co-58                                    0.016                       0.018 Co-60                                    0.009                       0.019 Zn-65                                    0.031                       0.043 Nb-95                                    0.020                       0.026 Zr-95                                    0.012                       0.042 Ru-103                                   0.014                       0.024 Ru-106                                   0.082                       0.107 Cs-134                                   0.008                       0.025 Cs-137                         0.027     0.011              0.033+/- 0.020 Ce-141                                   0.042                       0.031 Ce-144                                   0.079                       0.067 23-1

DUANE ARNOLD Table 23. River sediment, analysis for gamma-emitting isotopes.
Collection: Semiannually Units: pCi/g dry Location                                            D-107 Lab Code                         DBS-4235                      DBS-8913 Date Collected                    5/23/01                       9/26/01 K-40                            6.64 +/-   0.53                5.51 +/-  0.42 Mn-54                                <   0.027                     < 0.010 Fe-59                                <   0.034                     < 0.015 Co-58                                <   0.012                     < 0.015 Co-60                                 <  0.018              0.036 +/-  0.022 Zn-65                                 <  0.041                     < 0.032 Nb-95                                 <  0.037                     < 0.022 Zr-95                                 <  0.017                     < 0.023 Ru-103                                <  0.024                     < 0.020 Ru-106                                <  0.11                      < 0.097 Cs-134                                <  0.008                     < 0.020 Cs-137                                <  0.018                     < 0.013 Ce-141                                <  0.055                     < 0.044 Ce-144                                <  0.12                      < 0.077 23-2

DUANE ARNOLD Table 24. Precipitation, analyses for gamma emitting isotopes.
Collection:         Monthly Units:         pCi/L Location:          DAEC Date Collected           01-15-01        02-19-01       03-14-01 04-18-01 05-09-01 06-26-01 Lab Code                DP-247,8         DP-1326        DP-2004  DP-3071  DP-3824  DP-5222 Mn-54                      < 2.7           < 7.0          <4.6     <4.9     <3.8     < 2.5 Fe-59                      <8.5           < 11.6         < 10.4    <4.0     <6.5     < 9.2 Co-58                      < 5.0           <3.6           <4.6     < 4.6    <3.0     < 3.4 Co-60                      <4.4            <7.1           <4.8     < 5.5    <3.5     <2.7 Zn-65                      <6.9            <3.0           < 7.7    <4.9     <7.0     <4.7 Nb-95                      <4.5            < 5.0          < 5.4    < 5.2    < 3.5    <3.7 Zr-95                     < 10.3          < 10.4          <7.3     <3.5     <6.6     <6.8 1-131                      <9.6           < 15.3         < 23.1   < 15.8   < 13.2   < 50.0 Cs-134                     < 4.4           <5.6           <3.5     <5.7     <4.2     <3.0 Cs-137                     <4.0            <3.8           <4.9     < 4.5    <3.7     <2.7 Ba-140                    < 47.0          <40.1          < 46.8   <42.1    < 24.4   < 33.8 La-140                    < 12.0           < 7.2          < 9.7    <5.3     < 5.0   < 11.8 Date Collected           07-24-01        08-08-01       09-24-01 10-10-01 11-13-01 12-04-01 Lab Code                 DP-6647         DP-7038        DP-8523  DP-9001  DP-10517 DP-10777 Mn-54                      < 3.9           <7.2            <3.3    <3.1     <5.0     < 7.2 Fe-59                     < 10.2           <9.1            <9.5    <5.7     <5.8    < 11.6 Co-58                      <4.3            <5.9            < 2.4   < 2.7    <3.5     < 5.4 Co-60                      < 3.2           <5.7            <2.8    <2.5     <6.9     <4.5 Zn-65                      < 7.2          < 11.3           < 3.2   <4.4    < 10.7    <7.7 Nb-95                      <3.6            <7.1            <4.8    < 3.7    < 5.9    <7.6 Zr-95                      < 5.7          < 13.2           < 7.3   <4.7     <8.2     < 13.9 1-131                     < 28.9          < 14.1          < 20.3   < 9.3   < 10.2    < 10.9 Cs- 134                    < 4.7           <8.5            < 3.9   <2.1     < 6.4     <8.1 Cs-137                     < 3.2           <6.6            <3.0    < 1.6    <5.9      <9.7 Ba-140                    < 40.1          < 40.9          < 28.4  < 15.4   < 24.2    < 34.6 La-140                    < 10.2           <8.1            <8.1    < 2.4    <4.9      < 9.4 24-1

DUANE ARNOLD Table 25. Precipitation, analysis for tritium.
Collection: Quarterly composites of monthly samples.
Units: pCi/L Location                                              Duane Arnold Period                      1st Qtr.              2nd Qtr.         3rd Qtr. 4th Qtr.
Lab Code                   DP-2542                DP-5251          DP-8524  DP-1 1678 H-3                            < 184             228 +/- 96             < 156     < 161 25-1

DUANE ARNOLD Table 26. Meat, analysis for gamma-emitting isotopes.
Collection: Annually, when available.
Units: pCi/g wet Lab Code                                            NS" Date Collected Sample Type K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru- 106 Cs-134 Cs-137 Ce- 141 Ce- 144 a NS= No sample; Meat not collected in 2001. No animals slaughtered for home use.
26-1

DUANE ARNOLD Table 27. Soil, analysis for strontium-90 and gamma-emitting isotopes.
Collection: Annually Units: pCi/g dry Location                    D-15                                  D-16 Lab Code                 DSO-8914                            DSO-8915,16 Date Collected            10/5/01                               10/5/01 Sr-90                 0.026 __.0.011                               < 0.017 K-40                  15.31     1.02                          8.85 +  0.42 Mn-54                           0.036                                 0.019 Fe-59                           0.092                                 0.020 Co-58                           0.024                                 0.015 Co-60                           0.016                                 0.018 Zn-65                           0.094                                 0.035 Nb-95                           0.023                                 0.010 Zr-95                           0.059                                 0.024 Ru-103                          0.030                                 0.012 Ru-106                          0.31                                  0.13 Cs-134                          0.049                                 0.019 Cs-137                  0.17+/-   0.048                         0.16 _ 0.018 Ce-141                          0.052                                 0.021 Ce-144                          0.19                                  0.066 27-1}}