ML11140A076

From kanterella
Jump to navigation Jump to search
Annual Radiological Environmental Operating Report
ML11140A076
Person / Time
Site: Duane Arnold NextEra Energy icon.png
Issue date: 05/05/2011
From: Porter B
ATI Environmental, Midwest Lab
To:
Office of Nuclear Reactor Regulation
References
project 8001
Download: ML11140A076 (106)


Text

2010 Annual Radiological Environmental Operating Report Duane Arnold Energy Center Primary Contributor: _..

Date:

6-7/- b

//

Date:

-6/ LIo Aýý Reviewed By:

a 4

ý UL59/L ŽP, Approved By:

AP/

Date:

/

U (I, ~B

/

Pab' oer

'kA'I-I Environmental, Inc.

A1I Midwest Laboratory 700 Landwehr Road Northbrook, IL 60062-23 10 phone (847) 564-0700. fax (847) 564-4517 DUANE ARNOLD ENERGY CENTER CEDAR RAPIDS, IOWA DOCKET NO. 50-331 REPORT to the UNITED STATES NUCLEAR REGULATORY COMMISSION Annual Radiological Environmental Operating Report January 1 to December 31, 2010 Prepared by ATI ENVIRONMENTAL, Inc.

Midwest Laboratory Project No. 8001 Approved :

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.

ii

TABLE OF CONTENTS PART I No.

Paqe P R E F A C E......................................................................................................................

ii List of Tables........................................................................................................

v L ist o f F ig u re s...............................................................................................................

v i

1.0 INTRODUCTION

1 2.0

SUMMARY

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....................................................................................

6 3.4 Laboratory Procedures.................................................................................

7 3.5 Program Modifications.................................................................................

7 4.0 RESULTS AND DISCUSSION.................................................................................

8 4.1 Atmospheric Nuclear Detonations and Nuclear Accidents.......................... 8 4.2 Program Findings.......................................................................................

8 4.3 Supplementary Groundwater Testing.........................................................

11 5.0 TABLES AND FIGURES.......................................................................................

12

6.0 REFERENCES

CITED............................................................................................

28 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

Summary of the Land Use Census.....................................................................

D-1 E

Annual Radiation Dose Assessment........................................................................

E-1 iii

TABLE OF CONTENTS (continued)

Paqe Data Tabulations and Analyses......................................................................................

i PART II iv

LIST OF TABLES No.

Pae 5.1 Characteristic Properties of Isotopes Quantified in Gamma-spectroscopic A na lyse s................................................................................................

13 5.2 Sample Collection and Analysis Program.............................................................

14 5.3 Sampling Locations, DAEC...................................................................................

17 5.4 Type and Frequency of Collections.......................................................................

19 5.5 Sample Codes,Tables 5.4 and 5.6........................................................................

20 5.6 P rogra m D eviations....................................................................................................

2 1 5.7 Radiological Environmental Monitoring Program Summary.................................

22 In addition, the following tables are included in the Appendices:

Appendix A A-1 Environmental Resource Associates (EPA DW substitute program)..................

Al-1 A-2 Interlaboratory Comparison Program

Results, Thermoluminescent A-3 A-4 A-5 A-6 A-7 Appendix C C-1 D osim eters (T LD s)......................................................................................

A 2-1 In-house Spiked Samples........................................................................................

A3-1 In-house "Blank" Samples......................................................................................

A4-1 In-house "Duplicate" Samples.............................................................................

A5-1 Department of Energy MAPEP comparison results.................................................

A6-1 Environmental Resource Associates (EML substitute program)..............................

A7-1 Attachment A: Acceptance criteria for spiked samples............................................

A-2 Effluent Concentration Limits for Radioactivity in Air and Water Above Background in Unrestricted Areas...............................................................

C-2 v

LIST OF FIGURES No.

Pae 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center....................................................................

27 5.2 Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles.............

................................... 28 vi

1.0 INTRODUCTION

This report summarizes and interprets results of the Radiological Environmental Monitoring Program conducted by Environmental, Inc., Midwest Laboratory at the Duane Arnold Energy Center, Palo, Iowa, during the period January - December, 2010. This Program monitors the levels of radioactivity in the air, terrestrial, and aquatic environments in order to assess the impact of the plant on its surroundings.

Tabulation of the individual analyses made during the year are included in Part II of this report.

The Duane Arnold Energy Center (DAEC) is a boiling water reactor, located in Linn County, Iowa, on the Cedar River, and owned and operated by NextEra Energy Resources. Initial criticality was attained on March 23, 1974. The reactor reached 100% power on August 12, 1974. Commercial operation began on February 1, 1975.

1

2.0

SUMMARY

The Radiological Environmental Monitoring Program, as required by the U.S. Nuclear Regulatory Commission (NRC) Technical Specifications for the Duane Arnold Energy Center, is herein described.

Results for the year 2010 are summarized and discussed.

Trace levels of tritium in groundwater were reported from the sampling of monitoring wells within the Site Protected Area. REMP threshold reporting levels were not exceeded.

Program findings show only background levels of radioactivity in the environmental samples collected in the vicinity of the Duane Arnold Energy Center. No effect on the environment is indicated in the areas surrounding the site of the Duane Arnold Energy Center.

2

3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3.1 Program Design 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 provide a comparison between levels of naturally occurring radionuclides and radionuclides that could be attributed to the operation of the plant.

3

Program Design and Data Interpretation (continued)

Characteristic properties 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 Program 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 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 nine locations. Airborne iodine is collected by continuous pumping through charcoal filters. Eight of the nine locations are indicators and one is a control (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 filter samples are analyzed weekly for iodine-1 31.

Ambient gamma radiation is monitored at a total of 46 locations. A TLD is placed at each location and is exchanged and analyzed quarterly. The TLD locations are distributed as follows:

Two on-site locations Eighteen in a circle within a 0.5 mi. radius from the DAEC stack.

Six in 22.50 sectors within 1 mi. from the DAEC stack.

Ten in 22.50 sectors between 1 and 3 miles from the DAEC stack.

Ten control locations greater than 3 miles from the DAEC stack.

A precipitation sample is collected monthly from one on-site location and analyzed for gamma-emitting isotopes. A quarterly composite is analyzed for tritium.

Milk samples are collected monthly from one indicator and one control location during the non-grazing season, October through April, and biweekly during the grazing season, May 1 through September 30. The samples are analyzed for iodine-1 31 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-108) and eight indicators (D-16, D-57, D-58, D-72, D-94, D-96, D-109 and D-118). Grain, hay and broad leaf (green leafy) vegetation samples are analyzed for gamma-emitting isotopes and at least two broad leaf vegetation samples are analyzed for iodine-1 31. An alternative site for broadleaf vegetation (D-15, indicator) may be sampled, if available.

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.

4

Pro~gram Description (continued)

Potable ground water is collected quarterly from a treated municipal water system (D-53), the inlet to the municipal water treatment system (D-54), three indicator locations (D-55, D-57, D-58) and one control location (D-72). Non-potable water is collected from six on-site locations (MW-01 to MW-06). Two monitoring wells are sampled from each site, at shallow (A) and intermediate (B) depths, and analyzed for gross beta and tritium. If gross beta activity exceeds ten times the yearly mean of the control samples (or 7 pCi/liter), gamma isotopic, strontium-89 and strontium-90 analyses are performed.

Soil samples are collected annually at the two on-site locations, D-15a and D-16. The samples are analyzed for strontium-90, tritium and gamma-emitting isotopes.

Surface water is collected monthly from four river locations, D-49 (Lewis Access, Control, 4 mi.

upstream), D-50 (Inlet), D-51 (Discharge) and D-61 (downstream of Discharge). In addition, Pleasant Lake (D-99) surface water and sewage effluent from location (D-107) is also monitored.

The monthly samples are analyzed for tritium and gamma-emitting isotopes. Additional analyses are performed on samples collected from the control and indicator locations, D-49 and D-61.

Analyses for low-level iodine-131 are performed on monthly collections and quarterly composites are prepared and analyzed for strontium-89 and strontium-90.

The aquatic environment is also monitored by upstream and downstream (D-49 and D-61) semiannual collections of fish.

River bottom sediment is collected semiannually at the plant's intake and discharge (D-50 and D-51) and downstream of the sewage plant (D-107a). The samples are analyzed for gamma-emitting isotopes.

5

3.3 Program Execution The program was executed as described in the preceding section with the following exceptions.

(1) Airborne Particulates / Airborne Iodine:

No air particulate/ air iodine sample was available from location D-15 for the week ending 02/04/10.

There was no particulate matter collected on the filter.

Partial samples were collected at location D-7, for the weeks ending 05/13/10 and 08/12/10.

Detection limits for 1-131 were not met due to power interruptions, caused by a faulty line cord.

Air particulate / air iodine samples were not available at location D-6, for the weeks ending 08/05/10 through 09/02/10. The sampler site was shut down due to construction.

A partial sample (205 m3) was collected at location D-15, for the week ending 09/30/10, due to a power outage.

(2) Surface Water:

Surface water from locations D-50 and D-99 could not be sampled for the December 8, 2010 collection. The water was frozen.

(3) Milk:

Milk samples for locations D-108 and D-110, collected June 15, 2010, were damaged and lost in transit.

(4) Vegetation:

Vegetation samples were not collected at location D-94 in 2010. The sampling station was removed from the program in November, 2010.

(5) Precipitation:

Lower limits of detection could not be reached for the February, 2010 precipitation collection, due to insufficient sample volume (250 ml.).

6

3.4 Laboratory Procedures The Iodine-131 analyses in milk and water were made using a sensitive radiochemical procedure involving separation of iodine using an ion-exchange method, solvent extraction and subsequent beta counting. Levels of iodine-131 in vegetation and concentrations of airborne iodine-131 in charcoal samples were determined by gamma spectroscopy.

Gamma-spectroscopic analyses are performed using high-purity germanium (HPGe) detectors.

The gamma isotopic analysis provides a spectrum with an energy range from 80 to 2048 KeV.

Specific isotopes included in the gamma library are Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, Ru-103, Ru-106, 1-131, Ba-La-140, Cs-134, Cs-137, Ce-141, and Ce-144. Naturally occurring gamma-emitters, such as Be-7, K-40 and Ra daughters, are frequently detected but may not be listed.

Tritium was measured by liquid scintillation.

Analytical Procedures used by Environmental, Inc. are on file and are available for inspection.

Procedures are based on 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, 2011). The QA Program includes participation in Interlaboratory Comparison (crosscheck) Programs.

Results obtained in crosscheck programs are presented in Appendix A.

3.5 Program Modifications A new revision to the study plan (rev. 22) was issued in November of 2010. The revision included new conditional requirements for analysis of groundwaters:

Groundwater from potable wells is analyzed for gross beta and tritium. A gamma isotopic analysis will be performed if gross beta activity exceeds 3 pCi/L, or tritium activity exceeds MDA. If reactor by-product gamma emitters are identified, OR if gross beta measures > 7 pCi/L, or more than ten times the annual mean of the control samples, then additional analyses for Ni-63, Sr-89, Sr-90 and alpha emitters will be performed.

Samples from the six on-site monitoring wells are analyzed for tritium. If the tritium concentration is greater than 1000 pCi/L, conditional analyses for Ni-63, Sr-89, Sr-90 and alpha and gamma emitters are performed.

Vegetation samples were no longer available from sampling site D-94 in 2010. The station was removed from the program in November, 2010.

7

4.0 RESULTS AND DISCUSSION All collections and analyses were made as scheduled, except for those listed 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.

Tabulated results of measurements are not included in this section, although reference to these results will be made in discussion. A complete tabulation of results for 2010 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 2010.

4.2 Program Findings Results obtained show background levels of radioactivity in the environmental samples collected outside of the Site Protected Area in 2010. The trace levels of strontium-90 and cesium-137, still measurable in soil and sediment samples, are attributed to deposition of fallout from previous decades.

Tritium was identified in some groundwater samples collected within the site Protected Area. In no instances were REMP threshold reporting levels exceeded. (ODAM, Table 6.3-3)

Airborne Particulates The average annual gross beta concentrations in airborne particulates were identical at indicator 3

and control locations (0.028 pCi/m ) and similar to levels observed from 1995 through 2009. The results are tabulated below.

Year Indicators Controls Year Indicators Controls 3

Concentration ( pCi/mi 3

Concentration ( pCi/M )

1995 1996 1997 0.025 0.024 0.023 0.024 2003 0.023 0.023 2004 2005 0.029 0.028 0.031 0.029 0.028 0.031 0.027 1998 0.024 0.024 2006 0.029 F

-t-F-F 1999 0.026 0.027 2007 2000 2001 2002 0.026 0.026 0.027 0.027 2008 0.031 0.029 0.031 0.028 i

0.031 0.029 0.030 0.028 0.026 0.027 2009 2010 Average annual gross beta concentrations in airborne particulates.

8

4.2 Program Findings, Airborne Particulates (continued)

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, with an average activity of 0.081 pCi/m for all locations. All other gamma-emitting isotopes were below their respective LLD limits.

Airborne Iodine 3

Weekly levels of airborne iodine-131 were below the required limit of 0.030 pCi/m in all samples, excepting station D-7 for the weeks ending 05/13/10 and 08/12/10 (Sec. 3.3).

Ambient Radiation (TLDs)

At ten control locations, TLD readings averaged 17.3 mR/quarter. At locations within a half mile, one mile and three mile radius of the stack, measurements averaged 19.7 mR/quarter, 19.3 mR/quarter and 17.3 mR/quarter, respectively. The two on-site locations D-15 and D-16 averaged 18.2 mR/quarter.

The average for all locations was 18.6 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 Precipitation from the on-site location D-16 was analyzed for tritium and gamma-emitting isotopes.

No tritium activity was measured above the LLD of 159 pCi/L. No gamma-emitting isotopes were detected.

Milk Iodine-131 results were below the detection limit of 0.5 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 2010 show no radiological effects of plant operation.

9

4.2 Program Findings (continued)

Ground Water (potable)

The annual mean for gross beta activity 2.6 pCi/L, similar to levels observed from 1991 through 2009. The location with the highest mean was D-58, a farm 1.0 mile distant from the plant. Tritium activity measured below the LLD of 164 pCi/L in all samples.

No effect from plant operation is indicated.

Ground Water (Site Monitoring Wells)

Twelve on-site monitoring wells (six shallow and six intermediate depth) were sampled in 2010 and analyzed for gross beta and tritium.

The annual mean for gross beta activity in six intermediate depth wells measured 2.6 pCi/liter.

Measurements for the shallow wells averaged 3.1 pCi/liter. The highest mean (5.0 pCi/L) was observed at shallow well MW-6A. The same pattern of concentration was observed in 2009. The most likely cause of higher beta activity is contribution from naturally-occurring isotopes. No plant effect was indicated.

Tritium activity measured below the LLD of 164 pCi/L in all twenty four samples collected from the intermediate depth wells. Activity was identified in nine of the twenty-nine samples taken from shallow wells and ranged from 169 to 1817 pCi/L. The highest mean (792 pCi/L) was observed at shallow well MW-IA, lower than concentrations measured in 2009. The activity has been attributed to "washout" from gaseous effluents.

Vegetation Iodine-131 concentrations in broadleaf vegetation were below the LLD level of 0.018 pCi/g wet weight in all samples.

With the exception of potassium-40, which was observed in all vegetation samples (broadleaf, grain, and forage), all other gamma-emitting isotopes were below detection limits. No effect from plant operation is indicated.

Soil Strontium-90 activity measured below an LLD of 0.023 pCi/g dry weight in both on-site locations.

Cesium-137 activity averaged 0.14 pCi/g dry weight. Strontium-90 and cesium-137 activities are similar or less than levels observed from 1991 through 2009, these levels are generally attributable to deposition of fallout from previous decades.

Naturally-occurring potassium-40 averaged 11.82 pCi/g dry weight. No effect from the plant operation is indicated.

The soil was distilled and analyzed for tritium. One of the two samples tested indicated slight activity (176 pCi/L) above the background level of 165 pCi/L and is attributed to rainwater washout of tritium from gaseous effluents.

10

Program Findinqs (continued)

Surface Water Surface water was tested for tritium and gamma emitting isotopes in seventy samples from six locations. No measurable tritium activity was detected above an LLD of 179 pCi/L. Gamma-emitting isotopes were below detection limits.

An analysis for 1-131 was performed on samples from locations D-49 (control) and D-61 (0.5 mi.

downstream, indicator). All samples tested below detection limits.

Quarterly composites were also prepared from the samples collected at locations D-49 and D-61 and tested for strontium-89 and strontium-90. All samples tested below detection limits.

No plant effect on surface water is indicated.

Fish Fish were collected in May and September, 2010, and analyzed for gamma-emitting isotopes. With the exception of naturally-occurring potassium-40 no gamma-emitting isotopes were identified in edible portions of fish. The potassium-40 level was similar at both the indicator and control locations (2.97 and 3.45 pCi/g wet, respectively). No plant effect on the fish population is indicated.

River Sediments River sediments were collected in June and September, 2010, and analyzed for gamma-emitting isotopes. Potassium-40 activity ranged from 6.95 - 11.79 pCi/g dry weight and averaged 9.12 pCi/g dry weight.

Cs-1 37 activity measured below a detection limit of 0.039 pCi/g dry, less than levels observed from 1991 through 2009, trace cesium activity is generally attributable to deposition of fallout from previous decades.

All other gamma-emitting isotopes were below detection limits. There is no indication of a plant effect.

4.3 Supplementary Groundwater Testing There were no REMP sample analyses results that warranted communications to State and Local Stakeholders.

Refer to Part II, Appendix A for results of additional/ancillary samples collected in support of the Nuclear Industry Ground Water Protection Initiative.

11

5.0 TABLES AND FIGURES 12

Table 5.1 Characteristic properties of isotopes quantified in gamma-spectroscopic analyses.

Designation Comment Isotope Half-lifea Naturally Occurring A. Cosmogenic Produced by interaction of cosmic rays Be-7 53.2 d with atmosphere B. Terrestrial Primordial K-40 1.26 x 10' y I1. Fission Products b Nuclear accidents and 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-134 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 Half-lives are taken from Appendix E of Environmental Quarterly, 1 January 1978, Energy, 1978).

Includes fission-product daughters.

EML-334 (U. S. Department of 13

Table 5.2 Sample collection and analysis program.

Sampling Location a Exposure Pathway and/or Sample Description Sampling and Collection Type and Frequency Sample Type Point Frequency of Analysis b Airborne 3

Hiawatha Continuous operation of Analyze for gross beta activity Particulates 5

Palo sampler with sample more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after filter 6

Center Point collection at least once per change. Perform gamma 7

Shellsburg week or as required by dust isotopic analysis on each sample 11 Toddville loading having gross beta activity greater 13 Alburnett (C) than ten times the yearly mean of 15 On-site North the control samples.

16 On-site South 40 Wikiup Hill Composite weekly samples to form a quarterly composite (by location). Analyze quarterly composite for gamma isotopic.

Airborne Iodine 3

Hiawatha Continuous operation of Analyze each cartridge for iodine-5 Palo sampler with sample 131.

6 Center Point collection at least once per 7

Shellsburg week.

11 Toddville 13 Albumett (C) 15 On-site North 16 On-site South 40 Wikiup Hill Ambient 1-3, 5-8, Controls One dosimeter Read gamma radiation dose Radiation 10, 11,1 continuously at each quarterly.

location.

15, 16 Indicators Dosimeters are changed at least quarterly.

17-23,

< 0.5 mi. of Stack 28-32, 43-48

_ 1.0 mi. of Stack 82-86, 91

< 3.0 mi. of Stack 33-42 Surface Water 49 Lewis Acess (C)

Once per month.

Tritium and gamma isotopic 50 Plant Intake analyses for each sample (by 51 Plant Discharge location).

61 0.5 mi. downstream 99 Pleasant Creek Locations 49 and 61, analyses Lake for low level 1-131. Quarterly 107 Composites for Sr-89, Sr-90.

Plant Sewage Discharge 14

Table 5.2 Sample collection and analysis program, (continued).

Sampling Location a Exposure Pathway and/or Sample Description Sampling and Collection Type and Frequency Sample Type Point Frequency of Analysisb Ground Water 53 Treated Municipal Grab sample at least Gross beta and tritium activity (potable) 54 Inlet to Municipal Water once per quarter.

analysis on quarterly sample. If Treatment System gross beta measures greater than ten times the annual mean of the 55 On-site well control samples, or 7 pCi/L, perform gamma isotopic and Sr-57, 58 Wells off-site and 89 and Sr-90 analyses.

72 (C) within 4 km of DAEC On-site wells:

On-site Ground 111 MW-01A, B (SSE)

Water 112 MW-02A, B (ESE)

(Monitoring 113 MW-03A, B (NW)

Wells) 114 MW-04A, B (S) 115 MW-05A, B (SSW) 116 MW-06A, B (NE)

River 50 Plant Intake (C)

At least once every six Gamma isotopic analysis of each Sediment 51 Plant Discharge months.

sample.

107a North Drainage Ditch (on-site)

Vegetation 16, 57, 58 Farms that raise food Annually at harvest time.

Gamma isotopic analysis of edible 72, 94, crops.

One sample of each:

portions.

96,109, grain, green leafy, and 118 forage. At least one 1-131 analysis on broadleaf sample should be vegetation.

108 (C) broadleaf vegetation.

Fish 49 Cedar River upstream One sample per 6 Gamma isotopic analysis on of DAEC not influenced months (once during edible portions.

by effluent (C)

January through June and once during July Downstream of DAEC through December).

61 in influence of effluent Milk 108 (C)

Control Farm near At least once per two Gamma isotopic and iodine-131 Watkins, Iowa weeks during the grazing analyses of each sample.

season.

110 Dairy Farm 7.8 mi. SW At least once per month during the non-grazing season.

15

Table 5.2 Sample collection and analysis program, (continued).

Sampling Location a Exposure Pathway and/or Sample Description Sampling and Collection Type and Frequency Sample Type Point Frequency of Analysis b Precipitation 16 On-site Monthly Gamma isotopic on all samples.

Tritium on quarterly composites.

Meat d On-site Annually Gamma Isotopic Soil 15a, 16 On-site Annually Gamma Isotopic, Sr-90 and tritium (C) denotes control location. All other locations are indicators.

Gamma isotopic analysis and analysis for gamma-emitting nuclides refer to high resolution gamma ray spectrum analysis.

d The grazing season is considered to be May 1 through September 30.

d Only sampled when meat is butchered for home use.

16

Table 5.3 Sampling locations, Duane Arnold Energy Center.

Sampling Location Code Location Description Distance and Direction from Site Stack D-1 D-2 D-3 D-5 D-6 D-7 D-8 D-10 D-11 D-13 D-15 0-15a D-1 6 D-17 D-1 8 D-19 D-20 D-21 D-22 D-23 D-28 D-29 D-30 D-31 D-32 D-33 D-34 D-35 D-36 D-37 D-38 D-39 D-40 D-41 D-42 D-43 D-44 D-45 Cedar Rapids Marion Hiawatha.

Palo Center Point Shellsburg Urbana Atkins Toddville Alburnett On-site, North-Northwest On-site, North-Northwest On-site, South-Southeast On-site, N On-site, NNE On-site, NE On-site, ENE On-site, ENE On-site, E On-site, SE On-site, WSW On-site, W On-site, WNW On-site, NW On-site, NNW 3 miles N 3 miles NNE 3 miles NE 3 miles ENE 3 miles E 3 miles ESE 3 miles SE 3 miles SSE 3 miles S 3 miles SSE 1 mile SSW 1 mile WSW 1 mile W 12.9 mi SE 10.5 mi ESE 6.7 mi SE 2.8 mi SSW 6.0 mi N 4.9 mi W 9.3 mi NNW 8.5 mi SSW 3.1 mi E 9.0 mi ENE 0.7 mi NNW 0.3 mi NNW 0.3 mi SSE 0.7 mi N 0.4 mi NNE 0.4 mi NE 0.3 mi ENE 0.3 mi ENE 0.3 mi E 0.3 mi SE 0.5 mi WSW 0.4 mi W 0.4 mi WNW 0.5 mi NW 0.7 mi NNW 2.7 mi N 2.4 mi NNE 1.7 mi NE 2.2 mi ENE 1.8 mi E 2.0 mi ESE 1.6 mi SE 1.5 mi SSE 3.5 mi S 2.7 mi SSE 1.0 mi SSW 1.0 mi WSW 0.9 mi W 17

Table 5.3 Sampling locations, Duane Arnold Energy Center (continued).

Sampling Location Code Location Description D-46 D-47 D-48 D-49 D-50 D-51 D-53 D-54 D-55 D-57 D-58 D-61 D-72 D-82 D-83 D-84 D-85 D-86 D-91 D-96 D-99 D-107 D-107a D-108 D-109 D-110 D-111 D-112 D-113 D-114 D-115 D-116 D-118 1 mile WNW 1 mile NW 1 mile NNW Lewis Access, upstream of DAEC Plant Intake Plant Discharge Treated Municipal Water Inlet, Municipal Water Treatment System Production Well Farm (Off-site Well)

Farm (Off-site Well)

Downstream of plant discharge Farm On-site, SSE On-site, SSE On-site, S On-site, SSW On-site, SW On-site, NNW Farm Pleasant Creek Lake Sewage Plant Effluent North Drainage Ditch Farm Farm Farm Monitoring wells, MW-01A, B Monitoring wells, MW-02A, B Monitoring wells, MW-03A, B Monitoring wells, MW-04A, B Monitoring wells, MW-05A, B Monitoring wells, MW-06A, B Farm Distance and Direction from Site Stack 1.0 mi WNW 1.1 mi NW 1.0 mi NNW 4.2 mi NNW 0.4 mi SE 0.4 mi SE 8.6 mi SE 8.6 mi SE On-site 1.0 mi W 1.0 mi WSW-SW 0.4 mi SSE 2.0 mi SSW 0.4 mi SSE 0.4 mi SSE 0.4 mi S 0.4 mi SSW 0.5 mi SW 0.7 mi NNW 7.1 mi SSW 2.4 mi WNW On-site On-site 16.0 mi. SW 3.7 mi. SW 7.9 mi. SW On-site, SSE On-site, ESE On-site, NW On-site, S On-site, SSW On-site, NE 1.45 mi. NW 18

Table 5.4 Type and Frequency of collection.

Location Weekly Monthly Quarterly Semiannually Annually D-1 TLD D-2 TLD D-3 AP, Al TLD D-5 AP, Al TLD D-6 AP, At TLD D-7 AP, Al TLD D-8 TLD D-1 0 TLD D-11 AP, Al TLD D-13 AP, Al TLD D-15 AP, Al TLD D-15A SO D-1 6 AP, AI P

TLD SO, G D-17 to D-23 TLD D-28 to D-39 TLD D-40 AP, Al TLD D-41 to D-48 TLD D-49 SW F

D-50 SW BS D-51 SW BS D-53 WW D-54 WW D-55 WW D-57 WW G

D-58 WW G

D-61 SW F

D-72 WW G

D-82 to D-86 TLD D-91 TLD D-94 G

D-96 G

D-99 SW D-107 SW D-107A BS D-108 MI*

G D-109 G

D-110 MI*

D-111 to D-116 WW D-118 G

On-site ME

  • Biweekly during the grazing season.

19

Table 5.5. Sample codes used in Table 5.4 and Table 5.6.

Code Description AP Airborne Particulates Al Airborne Iodine TLD Thermoluminescent Dosimeter P

Precipitation MI Milk WW Well Water G

Vegetation ME Meat SO Soil SW Surface Water F

Fish BS River Sediment 20

Table 5.6. Program Deviations, Duane Arnold Energy Center.

Sample Collection Date Type Analysis Location(s) or Period Comments AP/AI Gross Beta Gamma P

Gamma AP/AI MI a M, a AP/AI AP/AI AP/AI SW SW VE Gross Beta Gamma 1-131, Gamma 1-131, Gamma Gross Beta Gamma Gross Beta Gamma Gross Beta Gamma H-3 Gamma H-3 Gamma Gamma D-15 D-16 D-7 D-108 D-110 D-6 D-7 D-15 D-50 D-99 D-94 02-04-10 2-25-10 No particulates found deposited on filter.

Required limits of detection not met due to insufficient sample volume.

05-13-10 Partial sample, 77 m3, due to faulty line cord.

06-15-10 Sample damaged and lost in transit.

06-15-10 Sample damaged and lost in transit.

08-05-10 to 09-02-10 No sample due to construction 08-12-10 Partial sample, 85 m3, due to faulty line cord.

09-30-10 Partial sample, 205 m3, due to power outage.

12-08-10 No sample; water frozen.

12-08-10.

No sample; water frozen.

2010 Location dropped from program.

a Constitutes a missed sample per the minimum requirements specified by the ODAM.

21

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Duane Arnold Energy Center Linn, Iowa Docket No.

50-331 Reporting Period January-December, 2010 (County, State)

Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLD b Mean (F)

Mean (F) C Mean (F)'

Routine (Units)

Analyses Range '

Location Range '

Range '

Results Airborne GB 462 0.003 0,028 (409/410)

D-6, Center Point 0.030 (47/47) 0.028 (52/52) 0 Particulates (0.003-0.078) 7 mi. N (0.012-0.055)

(0.010-0.053)

(pCi/m")

GS 36 Be-7 0.020 0.082 (32/32)

D-7,Shellsburg 0,092 (4/4) 0.080(414) 0 (0.056-0.108) 5 mi. W (0,074-0.108)

(0.073-0.084)

Mn-54 0.0011

< LLD

< LLD 0

Fe-59 0.0029

< LLD

<' LLD 0

Co-58 0.0013

< LLD

< LLD 0

Co-60 0.0012

< LLD

< LLD 0

Zn-65 0.0020

< LLD

< LLD 0

Nb-95 0.0015

< LLD

< LLD 0

Zr-95 0.0025

< LLD

< LLD 0

Ru-103 0.0018

< LLD

< LLD 0

Ru-106 0.0107

< LLD

< LLD 0

Cs-134 0,0011

< LLD

< LLD 0

Cs-137 0.0012

< LLD

< LLD 0

Ce-141 0.0028

< LLD

< LLD 0

Ce-144 0.0062

< LLD

< LLD 0

Airborne Iodine 1-131 462 0,030

< LLD

< LLD 0

(PCi/min)

TLD, Control Locations Gamma 40 1.0 None D-8,Urbana 21.5 (4/4) 17.7 (40140) 0 (mR/quarter) 10 mi. NW (18.4-26.8)

(13.5-26.8)

TLD. within 0.5 mi. of Stack Gamma 56 1,0 19.5 (56/56)

D-29,On-site 23.2 (4/4)

None 0

(mR/quarter)

(13.5-30,4) 0.5 mi. W (20,0-29.0)

TLD, within 1.0 mi. of Stack Gamma 48 1.0 19.3 (48/48)

D-44 22.3 (414)

None 0

(mR/quarter)

(12.2-27.1) 1 mi. WSW (20.3-27.1)

TLD, within 3.0 mi. of Stack Gamma 40 1.0 17.3 (40/40)

D-37, 20.9 (4/4)

None 0

(mR/quarter)

(13.6-2653) 3 mi. E (17.9-26.3)

Precipitation (pCi/L)

H-3 4

159

' LLD None 0

GS 12 Mn-54 7.3

< LLD None 0

Fe-59 12.6

< LLD None 0

Co-58 8.4

' LLD None 0

Co-60 10.3

< LLD None 0

Zn-65 18,3

< LLD None 0

Nb-95 9.8

< LLD None 0

Zr-95 12.5

< LLD None 0

1-131 17.i

< LLD

-None 0

Cs-134 6.7

< LLD None 0

Cs-137 8.0

< LLD None 0

Ba-140 59.4

< LLD None 0

La-140 11,4

< LLD None 0

22

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Duane Arnold Energy Center Linn, Iowa Docket No.

50-331 Reporting Period January-December, 2010 (County. State)

Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLD Mean (F) C Mean (F)'

Mean (F)'

Routine (Units)

Analyses Range Location' Rangec Range Results Milk (pCi/L) 1-131 34 0.5

< LLD

< LLD 0

GS 34 K-40 100 1376 (17/17)

D-108. Farm 1411 (17/17) 1411 (17/17) 0 (1288-1444) 17.3 mi. SW (1171-1692)

(1171-1692)

Cs-134 5

< LLD

< LLD 0

Cs-137 5

' LLD

< LLD 0

Ba-140 60

- LLD LLD 0

La-140 5

< LLD LLD 0

Ground Water.

GB 23 1.4 2.1 (7/19)

D-58, Farm 2.6 (4/3)

- LLD 0

potable (pCi/L)

(1.4-4.0) 1 mi. WSW-SW (1.6-4.0)

H-3 23 164

Monitoring GB 53 1.8 3.0 (30/53)

MW-6A, shallow 5.0 (4/4)

< LLD 0

wells (pCi/L)

(1.8-6.4)

Onsite, NE (3.1-6.4)

H-3 53 164 659 (9/53)

MW-O1A (shallow) 792 (7/7)

< LLD 1

(169-1817)

Onsite, 210m SSE (243-1817)

Broadleaf 1-131 4

0.018

< LLD

< LLD 0

Vegetation (pCi/g wet)

GS 4

K-40 0.5 3.28 (4/4)

D-108, Farm 4.04(1/1) 4.04 (1/1) 0 (2.60-4.04) 17.3 mi. SW Mn-54 0.015

< LLD

< LLD 0

Co-58 0,012

< LLD

< LLD 0

Co-60 0.018

< LLD

Zn-65 0.032

< LLD

Nb-95 0.014

< LLD

< LLD 0

Zr-95 0.029

< LLD LLD 0

Ru-103 0.014

< LLD

< LLD 0

Ru-106 0.15

' LLD

< LLD 0

Cs-1 34 0,014

< LLD

< LLD 0

Cs-137 0.015

< LLD LLD 0

Ce-141 0.022

< LLD

<- LLD 0

Ce-144 0.11

< LLD

< LLD 0

23

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Duane Arnold Energy Center Linn, Iowa (County, State)

Docket No.

Reporting Period 50-331 January-December, 2010 Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLD b Mean (F) c Mean (F) c Mean (F)

Routine (Units)

Analyses a Range Location d Range Range Results Vegetation GS (Grain and Forage) K-40 0.5 6.55 (7/7)

D-58, Farm 12.79(1/1) 7.53 (2/2) 0 (pCi/g wet)

(2.55-17.96) 1 mi. WSW-SW (4.83-10.22)

Mn-54 0.023

< LLD

< LLD 0

Co-58 0.025

< LLD LLD 0

Co-60 0.022

< LLD

<-LLD 0

Zn-65 0.053

< LLD

< LLD 0

Nb-95 0.024

< LLD

< LLD 0

Zr-95 0.058

< LLD c LLD 0

Ru-103 0.018

< LLD

< LLD 0

Ru-106 0.18

< LLD

< LLD 0

Cs-134 0.018

< LLD

< LLD 0

Cs-137 0.022

< LLD LLD 0

Ce-141 0.039

< LLD LLD 0

Ce-144 0.15

< LLD

< LLD 0

Soil Sr-90 2

0.023

< LLD None 0

(pCi/gwet)

H-3 (pCi/L) 2 165 176(1/2)

D-16, On-site 176(1/1)

None 0

0.5 mi. SSE GS 2

K-40 0.5 11.82 (2/2)

D-15, On-site 14.62 (111)

None 0

(9.02-14.62) 0.5 mi. NW Mn-54 0.025

< LLD None 0

Fe-59 0.066

< LLD None 0

Co-58 0.025

< LLD None 0

Co-60 0.015

< LLD None 0

Zn-65 0.065

< LLD None 0

Nb-95 0.033

< LLD None 0

Zr-95 0.021

< LLD None 0

Ru-103 0.029

< LLD None 0

Ru-106 0.25

< LLD None 0

Cs-134 0.017

< LLD None 0

Cs-137 0.060 0.14 (212)

D-15, On-site 0.15 (1/1)

None 0

(0.13-0,15) 0.5 mi. NW Ce-141 0.047

' LLD None 0

Ce-144 0.13

< LLD None 0

24

Table 5.7 Radiological Environmental Monitoring Program Summary, Name of Facility Location of Facility Duane Arnold Energy Center Linn, Iowa (County, State)

Docket No.

Reporting Period 50-331 January-December, 2010 Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLD b Mean (F)

Mean (F) c Mean (F) c Routine (Units)

Analyses Range' Location' Range' Range C Results Surface Water H-3 70 179

< LLD

< LLD 0

(pCi/L) 1-131 24 0.8

< LLD

< LLD 0

Sr-89 8

0.9

< LLD

< LLD 0

Sr-90 8

0.6

< LLD

< LLD 0

GS 70 Mn-54 4.5

< LLD

< LLD 0

Fe-59 7.9

< LLD LLD 0

Co-58 4.8

< LLD

< LLD 0

Co-60 5.0

< LLD

< LLD 0

Zn-65 10.3

< LLD

< LLD 0

Nb-95 5.3

< LLD

< LLD 0

Zr-95 10.4

< LLD

< LLD 0

1-131 9.2

< LLD c LLD 0

Cs-134 5.0

< LLD

< LLD 0

Cs-137 5.8

< LLD

< LLD 0

Be-140 24.9

< LLD

< LLD 0

La-140 5.6

< LLD

< LLD 0

Sediments GS 6

(pCi/g dry)

K-40 1.0 7.12 (4/4)

D-107, Sewage 7.25 (2/2) 6.94 (2/2) 0 (5.75-8.21)

Effluent Canal (7.10-7.41)

(6.60-7.29)

Mn-54 0.047

< LLD

< LLD 0

Fe-59 0.09

< LLD

<LLD 0

Co-58 0.041

< LLD

< LLD 0

Co-60 0.030

< LLD

< LLD 0

Zn-65 0.080

< LLD

< LLD 0

Nb-95 0.069

< LLD

< LLD 0

Zr-95 0.073

< LLD

< LLD 0

Ru-103 0,045

< LLD

< LLD 0

Ru-106 0.28

< LLD

,< LLD 0

Cs-134 0.034

' LLD

< LLD 0

Cs-137 0.039

< LLD

< LLD 0

Ce-141 0.087

< LLD

< LLD 0

Ce-144 0.24

< LLD

< LLD 0

25

Table 5.7 Radiological Environmental Monitoring Program Summary.

Name of Facility Location of Facility Duane Arnold Energy Center Linn. Iowa (County, State)

Docket No.

50-331 Reporting Period January-December, 2010 Indicator Location with Highest Control Number Sample Type and Locations Annual Mean Locations Non-Type Number of LLD b Mean (F)

Mean (F) C Mean (F) '

Routine (Units)

Analyses Range' Location d Range Range' Results Fish GS 8

(pCi/g wet)

K-40 1.0 2.97(414)

D-49, Upstream, 3.45(4/4) 3.45 (4/4) 0 (2.87-3,14) 4.0 mi. NNW (3.34-3.63)

(3.34-3.63)

Mn-54 0.021

< LLD

< LLD 0

Fe-59 0.037

< LLD

< LLD 0

Co-58 0.018

< LLD

< LLD 0

Co-60 0.024

< LLD

< LLD 0

Zn-65 0,051

< LLD

< LLD 0

Nb-95 0.028

< LLD

< LLD 0

Zr-95 0.036

< LLD

< LLD 0

Ru-103 0.022

< LLD

< LLD 0

Ru-106 0.19

< LLD

< LLD 0

Cs-134 0.021

< LLD

< LLD 0

Cs-137 0.016

< LLD

< LLD 0

Ce-141 0.032

< LLD

< LLD 0

Ce-144 0.159

< LLD

< LLD 0

GB Gross beta; GS = Gamma spectroscopy b LLD Nominal lower limit of detection based 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).

d Locations are specified by: (1) Name and code (Table 5.3); and (2) distance, direction and sector relative to reactor site, Non-routine results are those which exceed ten times the control station value for the location. If a contol station value is not available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

26

Figure 5.1 Radiological Environmental Monitoring Program Sampling Stations near the Duane Arnold Energy Center.

See Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.

27

Figure 5.2. Radiological Environmental Monitoring Program Sampling Stations Outside 0.5 Miles.

See Table 5.3 for sampling locations and Table 5.4 for Type and Frequency of collection.

28

6.0 REFERENCES

CITED Arnold, J. R. and H. A. Al-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, 275-276.

Environmental, Inc., Midwest Laboratory.

2001 through 2011.

Environmental Radiological Monitoring Program for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January - December, 2001 - 2010.

1984 to 2000. (formerly Teledyne Brown Engineering, Environmental Services, Midwest Laboratory)

Environmental Radiological Monitoring Program for the Duane Arnold Energy

Center, Annual Report - Part II, Data Tabulations and Analyses, January - December, 1983 - 1999.

1982 to 1984.

(formerly Hazleton Environmental Sciences Corporation) Environmental Radiation Monitoring for the Duane Arnold Energy Center, Annual Report - Part II, Data Tabulations and Analyses, January - December 1981 - 1983.

2009.

Quality Assurance Program Manual, Rev. 2, 10 November 2009.

2009.

Quality Control Procedures Manual, Rev. 2, 08 July 2009.

2009.

Quality Control Program, Rev. 2, 12 November 2009.

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.

National Center for Radiological Health, 1968. Radiological Health and Data Reports, Vol. 9, Number 12, 730-746.

U. S. Department of Energy. 1978.

Environmental Quarterly, Appendix E.

Half-Life Tables, 1 January 1978, EML-334.

U. S. Nuclear Regulatory Commission. 1977.

Regulatory Guide 1.109, Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR Part 50, Appendix I.

Wilson, D. W., G. M. Ward and J. E. Johnson.

1969.

In Environmental Contamination by Radioactive Materials, International Atomic Energy Agency. p.125.

29

  • ATI Environmental, Inc.

Midwest Laboratory 700 endWW Road - Northbrook, IL 60062-2310 phone (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, 2010 through December, 2010

Appendix A Interlaboratory Comparison ProQram Results Environmental, Inc., 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 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.

Results in Table A-1 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

Table A-2 lists results for thermoluminescent dosimeters (TLDs), via International Intercomparison of Environmental Dosimeters, when available, and internal laboratory testing.

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.

Table A-5 lists REMP specific analytical results from 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.

Complete analytical data for duplicate analyses is available upon request.

The results in Table A-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.

Results in Table A-7 were obtained through participation In the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurement Laboratory Quality Assessment Program (EML).

Attachment A lists the laboratory precision at the 1 sigma level for various analyses. The acceptance criteria in Table A-3 is set at +/- 2 sigma.

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 determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium-Sgb 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 eCitliter or ko 10% of known value Strontium-90b Potassium-40 Gross alpha Gross beta Tritium Radium-226,-228 Plutonium Iodine-131, Iodine-1 2 9b Uranium-238, Nickel-63b Technetium-g9b Iron-55b 2 to 30 pCi/liter or kg

> 30 pCi/liter or kg a 0. 1 g/liter or kg

- 20 pCi/liter

> 20 pCi/liter s 100 pCi/liter

> 100 pCi/liter

-< 4,000 pCi/liter

> 4,000 pCi/liter

- 0.1 pCi/liter

> 0.1 pCi/liter, gram, or sample

< 55 pCilliter

> 55 pCi/liter s 35 pCilliter

> 35 pCi/liter 50 to 100 pCi/liter

> 100 pCi/liter 5.0 pCi/liter 10% of known value 5% of known value 5.0 pCi/liter 25% of known value 5.0 pCi/liter 5% of known value

+/-10 =

169.85 x (known)0.933 10% of known value 15% of known value 10% of known value 6 pCi/liter 10% of known value 6 pCi/liter 15% of known value 10 pCi/liter 10% of known value Other Analyses b 20% of known value From EPA publication, "Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

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 Acceptance STW-1205 STW-1205 STW-1206 STW-1206 STWV-1206 STW-1206 STW-1206 04/05110 04105/10 04/05110 04/05/10 04/05/10 04105/10 04/05110 Sr-89 Sr-90 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 63.0 +/- 5.7 37.4 +/- 2.4 63.6 +/- 3.3 83.3 +/- 2.9 71.0 +/- 3.4 145.5 +/- 5.1 194.9 +/- 7.8 60,4 41.3 65.9 84.5 71.6 146.0 186.0 32.9 37.5 STW-1207 04/05/10 Gr. Alpha 26.5 +/- 1.7 STW-1207 04/05/10 Gr. Beta 34.5 +/- 1.6 STW-1208 04/05/10 1-131 STW-1209 STW-1209 STW-1209 STW-1210 04/05/10 04/05/10 04105110 04/05/10 Ra-226 Ra-228 Uranium H-3 STW-1224 10/04/10 Sr-89 STW-1224 10/04/10 Sr-90 22.7 +/- 0.8 15.2 +/- 0.7 15.6 + 1.8 59.5 +/- 0.7 12955 +/-332 65.3 +/- 5.7 39.9 +/- 2.3 67.2 +/- 4.3 53.2 +/- 3.3 47.3 +/- 5.1 118.0 +/-5.9 107.0 +/- 8.7 26.4 14.6 15.1 62.3 12400.0 68.5 43,0 68,9 53.4 43,2 123.0 102.0 48.6 - 68.2 30.4 -47.4 54.9 - 72.5 76.0 - 95.3 58.4 - 78.8 131.0 - 163.0 167.0 - 219.0 16.9 - 42.6 24.7 -45.0 21.9 -31.1 10.9 - 16.8 10.1 - 18.3 50.7 -69.1 10800 - 13600 55.8 - 76.7 31.7 -49.3 57.5 - 75.8 48.1 -61.3 34.5 - 47.5 111.0 - 138.0 91.8-122.0 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1225 STW-1225 STW-1225 STW-1225 STW-1225 10/04/10 10/04/10 10/04/10 10/04/10 10/04/10 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 STW-1226 10/04/10 Gr. Alpha 30.7 +/- 2.9 STW-1226 10/04/10 Gr. Beta 32.7 +/- 0.8 42.3 21.9 - 53.7 36.6 24.0 - 44.2 STW-1227 10/04/10 1-131 STW-1228 STW-1228 STW-1228 STW-1229 10/04/10 10/04/10 10/04/10 10/04/10 Ra-226 Ra-228 Uranium H-3 28.6 +/- 1.1 11.8 +/--0.6 12.0 +/- 1.8 34.8 +/- 0.4 13682 +/- 352 27.5 11.4 9.9 36.8 12900.0 22,9 - 32.3 8.5 - 13.2 6.4 - 12.3 29.8 -41.0 11200 - 14200 a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

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, 1 determination) and control limits as provided by ERA,

TABLE A-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLD, CaSO4: Dy Cards).

mR Lab Code Date Known Lab Result Control Description Value

+/- 2 sigma Limits Acceptance Environmental, Inc.

2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 2010-1 6/8/2010 30 cm.

75.07 90.78 +/- 3.60 6/812010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/812010 6/8/2010 6/812010 6/8/2010 6/8/2010 6/8/2010 40 cm.

50 cm.

60 cm.

70 cm.

75 cm.

80 cm.

90 cm.

100 cm.

110 cm.

120 cm.

150 cm.

180 cm.

42.23 27.03 18.77 13.79 12.01 10.56 8.34 6.76 5.58 4.69 3.00 2.09 50.88 +/- 3.59 32.12 +/- 1.90 21.80 +/- 0.90 15.38 +/- 1.39 11.30 +/- 1.07 10.90 +/- 0.61 7.84 +/- 0.83 6.61 +/- 0.52 4.29 +/- 0.55 3.64 + 0.33 2.82 +/- 0.84 1.55 +/- 0.23 52.55 -97.59 29.56 - 54.90 18.92 -35.14 13.14 -24.40 9.65 -17.93 8.41 -15.61 7.39 -13.73 5.84 - 10.84 4.73 - 8.79 3.91 -7.25 3.28 -6.10 2.10 -3.90 1.46 - 2.72 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Environmental. Inc.

2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 2010-2 12/13/2010 12/13/2010 12/13/2010 12/13/2010 12113/2010 12/13/2010 1211312010 12/13/2010 12/13/2010 12/13/2010 1211312010 100 cm.

110 cm.

120 cm.

150 cm.

180 cm.

40 cm.

50 cm.

60 cm.

60 cm.

80 cm.

90 cm.

4.94 4.09 3.43 2.2 1.53 30.89 19.77 13.73 13.73 7.72 6.1 4.65 +/- 0.57 3.50 +/- 0.74 2.68 +/- 0.36 1.75 -+ 0.42 1.32 +/- 0.52 38.56 +/- 2.11 23.35 +/- 1.82 14.53 +/- 1.24 15.84 +/- 1.53 8.33 +/- 0.74 5.93 +0.73 3.46 - 6.42 2.86 - 5.32 2.40 - 4.46 1.54 -2.86 1.07 - 1.99 21.62 - 40.16 13.84 -25.70 9.61 - 17.85 9.61 - 17.85 5.40 - 10.04 4.27 - 7.93 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A2-1

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)ý Lab Code Date Analysis Laboratory results Known Control 2s, n=1 Activity Limitsd Acceptance SPW-12648 SPW-279 SPW-391 W-21210 W-21710 W-21710 SPAP-669 SPAP-671 SPAP-671 SPMI-674 SPMI-674 SPMI-674 SPW-676 SPW-676 SPW-676 SPW-678 SPF-680 SPF-680 SPW-682 SPW-2871 W-40510 W-40510 SPW-2083 W-51310 SPW-3181 SPW-3272 SPW-3278 SPW-3280 SPAP-3270 SPAP-3270 SPW-3274 SPW-3274 SPW-3274 SPW-3274 SPMI-3276 SPMI-3276 SPMI-3276 SPMI-3276 1/20/2010 1/27/2010 2/4/2010 2/12/2010 2/17/2010 2/17/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2125/2010 2/25/2010 2/25/2010 4/5/2010 4/5/2010 4/5/2010 4128/2010 5/1312010 6/17/2010 6/25/2010 6125/2010 6/25/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 Ra-228 U-238 Ni-63 Ra-226 Gr, Alpha Gr. Beta Gr. Beta Cs-134 Cs-137 Co-60 Cs-134 Cs-137 Co-60 Cs-134 Cs-137 H-3 Cs-134 Cs-137 Tc-99 Ra-228 Gr. Alpha Gr. Beta U-238 Ra-226 Tc-99 H-3 Fe-55 C-14 Cs-134 Cs-137 Co-60 Cs-134 Cs-137 Sr-90 Co-60 Cs-1 34 Cs-137 Sr-90 40.04 +/- 2.99 4.52 +/- 0.22 179.70 +/- 2,96 16.05 +/- 0.39 17.54 +/- 0.37 42.47 +/- 0,39 45.78 +/- 0.11 10.56 +/- 3.15 105.36 +/- 3.15 67.38 +/- 5.65 60.61 +/- 6.28 173.80 +/- 10.30 66.13 +/- 5.22 51.54 +/- 5.97 179,30 +/- 9.95 59213.70 +/- 709.90 402.56 +/- 22.40 2267.90 +/- 75.60 29.70 +/- 1.51 33.91 +/- 2.85 20.65 +/- 0.42 44.72 +/- 0.40 4.20 +/- 0.32 17.04 +/- 0.50 29.87 +/- 1.09 5489.00 +/- 224.00 17054.00 +/- 348.00 3410.60 +/- 9.75 12.24 +/- 3.13 103.92 +/- 7.14 67.48 +/- 5.53 49.55 +/- 6,11 58.85 +/- 6.54 41,59 +/- 1.83 66.80 +/- 5,25 48.20 +/- 3.88 62.46 +/- 6.33 43.32 +/- 1.63 40.54 4.17 209.62 16.77 20.00 45.20 49.24 10.38 109.20 68.79 51.91 163.80 68,79 51.91 163.80 60407.70 415.00 2180.00 32.34 36.80 20,00 45,20 4.17 16.77 32.34 5928.00 19614.00 4738.00 10.38 109.20 65.84 46.38 54.17 42.72 65.84 46.38 54.17 42.72 28.38 - 52.70 0.00 - 16.17 146.73 - 272,51 11.74 - 21.80 10.00 - 30.00 35.20 - 55.20 29.54 - 68.94 0.38 - 20.38 98.28 - 120.12 58.79 - 78.79 41.91 -61.91 147.42 - 180.18 58.79 - 78.79 41.91 -61.91 147.42 - 180.18 48326.16 - 72489.24 373.50 - 456.50 1962.00 - 2398.00 20.34 - 44.34 25.76 - 47.84 10.00 - 30.00 35.20 - 55.20 0.00 -16.17 11.74 - 21.80 20.34 - 44.34 4742.40 -7113.60 15691.20 - 23536.80 2842.80 - 6633.20 0.38 -20.38 98.28 - 120.12 55.84 - 75.84 36.38 - 56.38 44.17 - 64.17 34.18 - 51.26 55.84 - 75.84 36.38 - 56.38 44.17 - 64.17 34.18 - 51.26 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A3-1

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 Activity Limitsc Acceptance SPW-5081 W-90910 W-90910 W-91010 SPW-2874 XWW-5302 XWW-5302 XWW-5302 XWW-5302 SPW-6035 W-120110 W-120110 W-121610 9/9/2010 919/2010 9/912010 9/10/2010 9/23/2010 10/6/2010 10/6/2010 10/6J2010 10/6/2010 10/21/2010 1211/2010 12/1/2010 12/16/2010 Tc-99 Gr. Alpha Gr. Beta Ra-226 Ra-228 Ba-133 Co-60 Cs-134 Cs-137 U-238 Gr. Alpha Gr. Beta Ra-226 30.22 +/- 1.06 20.95 +/- 0.43 45.20 +/- 0.41 17.48 +/- 0.50 34.60 +/- 2.68 154.13 +/- 8.90 24.65 +/- 4.11 14.03 +/- 3.87 61.16 +/- 6.08 4.52 1 0.20 20.27 t 0.41 46.75 +/- 0.41 17.99 t 0.43 32.34 20.00 45.20 16.77 36.80 155.21 23.28 13.95 59.22 4.17 20.00 45.20 16.77 20.34 - 44.34 10.00 - 30.00 35.20 - 55.20 11.74 -21.80 25.76 - 47.84 139.69 - 170.73 13.28 - 33.28 3.95 - 23.95 49.22 - 69.22 0.00 - 16.17 10.00 - 30.00 35.20 - 55.20 11.74 -21,80 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass a Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/m 3), and solid samples (pCi/g).

Laboratory codes as follows: W (water), Ml (milk), AP (air filter), SO (soil), VE (vegetation),

CH (charcoal canister), F (fish).

Results are based on single determinations.

d Control limits are established from the precision values listed in Attachment A of this report, adjusted to +/- 2a.

NOTE: For fish, Jello Is used for the Spike matrix. For Vegetation, cabbage is used for the Spike matrix.

A3-2

TABLE A-4. In-House "Blank" Samples Concentration (pCVL)"

Lab Code Sample Date Analysisb Laboratory results (4.66y)

Acceptance Type LLD Activityc Criteria (4.66 a)

SPW-12658 SPW-280 SPW-392 W-21210 W-21710 W-21710 SPAP-668 SPAP-670 SPAP-670 SPMI-672 SPMI-672 SPW-675 SPW-675 SPW-675 SPF-679 SPF-679 SPW-681 SPW-2881 W-4051 0 W-40510 SPW-2084 W-51310 SPW-3271 SPW-3278 SPW-3279 SPAP-3269 SPAP-3269 SPW-3273 SPW-3273 SPW-3273 SPW-3273 SPMI-3275 SPMI-3275 SPMI-3275 SPMI-3275 Water Water Water Water Water Water Air Filter Air Filter Air Filter Milk Milk Water Water Water Fish Fish Water Water Water Water Water Water Water Water water Air Filter Air Filter Water Water Water water Milk Milk Milk Milk 1/20/2010 1/27/2010 2/4/2010 2/12/2010 2/17/2010 2/17/2010 2/25/2010 2/25/2010 2125/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 4/5/2010 4/5/2010 4/5/2010 4/28/2010 5/13/2010 6/25/2010 6/25/2010 6/25/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/25/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 Ra-228 U-238 Ni-63 Ra-226 Gr. Alpha Gr. Beta Gr, Beta Cs-134 Cs-137 Cs-137 1-131(G)

Co-60 Cs-137 1-131(G)

Cs-134 Cs-137 Tc-99 Ra-228 Gr. Alpha Gr. Beta U-238 Ra-226 H-3 Fe-55 C-14 Cs-134 Cs-137 Co-60 Cs-134 Cs-137 Sr-90 Cs-134 Cs-137 1-131(G)

Sr-90 0.79 0.18 15.90 0.03 0.41 0.73 0.11 1.87 2.31 3.52 6.09 1.55 2.69 5.68 10.94 18.37 16.11 0,89 0.40 0.75 0.14 0.03 151.60 634.50 8.57 1.71 2.42 1.64 3.89 4.29 0.50 3.33 3.82 3.71 0.58 0.61 1+/-0.44 0.07 +/- 0.13

-11.80 +/- 9.40 0.06 +/- 0.02 0.09 +/- 0.30 0.23 t 0.52 0.008 +/- 0.002

-10.75 +/- 9.53 0.22 +/- 0.44

-0.20 +/- 0.26

-0.09 +/- 0.52 0.03 +/- 0.10 0.06 +/- 0.02

-58.10 +/- 71.90 256.80 +/- 396.40

-1.84 +/- 5.18

-0.04 +/- 0.22 0.81 +/- 0.36 2

1 20 3,2 3.2 100 100 10 20 10 10 20 100 100 10 2

1 3.2 1

1 200 1000 200 100 100 10 10 10 1

10 10 20 1

A4-1

TABLE A-4. In-House "Blank" Samples Concentration (pCI/L)a Lab Code Sample Date AnalysiSb Laboratory results (4.66a)

Acceptance Type LLD Activityc Criteria (4.66 a)

SPW-5080 W-90910 W-90910 W-91010 SPW-2884 SPW-6036 W-120110 W-120110 W-121610 BKW-120610 BKW-120610 BKW-120610 BKW-120610 W-121610 Water Water Water Water Water Water Water Water Water water water water water Water 9/9/2010 9/9/2010 9/9/2010 9/10/2010 9/23/2010 10/21/2010 12/1/2010 12/1/2010 12/16/2010 12/6/2010 1216/2010 12/6/2010 12/6/2010 12/16/2010 Tc-99 Gr. Alpha Gr. Beta Ra-226 Ra-228 U-238 Gr. Alpha Gr. Beta Ra-226 Ba-133 Co-60 Cs-134 Cs-137 Ra-226 2.15 0.39 0.78 0.04 0.71 0.11 0.43 0.75 0.03 5.66 4.49 4.41 5.33 0.03

-0.71 +/- 1.29 0.10 +/- 0.28

-0.09 +/- 0.55 0.07 +/- 0.03 1.14 +/- 0.46 0.07 +/- 0.10

-0.05 +/- 0.29

-0.08 +/- 0.53 0.04 +/- 0.02 10 1

3.2 1

2 1

1 312 1

10 10 10 10 1

0.04 _ 0.02 Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

1-131(G); iodine-131 as analyzed by gamma spectroscopy.

Activity reported is a net activity result. For gamma spectroscopic analysis, activity detected below the LLD value is not reported.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)8 Averaged Lab Code Date Analysis First Result Second Result Result Acceptance CF-20, 21 CF-20, 21 CF-20, 21 CF-41, 42 CF-41, 42 CF-41, 42 MI-111, 112 DW-10010, 10011 DW-10010, 10011 WW-215, 216 DW-10022,10023 DW-10022,10023 WW-424, 425 DW-10034,10035 DW-10034,10035 SW-382, 383 DW-10046,10047 DW-10046,10047 WW-693,694 SW-782, 783 SW-782, 783 MI-946, 947 W-1035,1036 W-1035,1036 SW-1285,1286 W-1103,1104 WW-1193,1194 LW-1909,1910 LW-1909,1910 DW-10068,10069 DW-10070,10071 DW-10070,10071 AP-1729,1730 AP-1782, 1783 E-1392,1393 E-1392, 1393 WW-1422,1423 SW-1464,1465 XW-1666,1667 SG-1532,1533 SG-1532,1533 1/412010 1/4/2010 1/4/2010 1/4/2010 1/4/2010 1/4/2010 1/12/2010 1/13/2010 1/13/2010 1/18/2010 1/21/2010 1/21/2010 1/2812010 1/28/2010 1/28/2010 2/1/2010 2/2/2010 2/2/2010 2/23/2010 3/1/2010 3/1/2010 3/9/2010 3/17/2010 3/17/2010 3/17/2010 3/18/2010 3/18/2010 3/24/2010 3/25/2010 3/25/2010 3/29/2010 3/29/2010 3/30/2010 3/3012010 4/1/2010 4/1/2010 4/1/2010 4/1/2010 4/1/2010 4/6/2010 4/6/2010 Gr. Beta K-40 Sr-90 Be-7 Gr. Beta K-40 K-40 Ra-226 Ra-226 H-3 Ra-226 Ra-228 H-3 Ra-226 Ra-228 Gr. Beta Ra-226 Ra-228 H-3 Gr. Beta K-40 K-40 Ra-226 Ra-228 H-3 H-3 H-3 H-3 H-3 Gr. Alpha Ra-226 Ra-228 Be-7 Be-7 Gr. Beta K-40 Gr. Beta H-3 Fe-55 Ac-228 Pb-214 10.96 +/- 0.27 8.88 +/- 0.48 0,02 +/- 0.01 0.45 +/- 0.11 3.26 +/- 0.10 2.85 +/- 0.36 1276.00 +/- 98.96 0.48 +/- 0.10 1.59 +/- 0.61 211.16 +/- 87.57 8.57 +/- 0.91 5.68 +/- 1.36 422.30 +/- 95.90 0.93 +/- 0.13 1.16 +/- 0.62 2.22 +/- 0.68 6.11 +/-0.91 5.84 +/- 1.11 1458.00 +/- 131.00 1.05 +/- 0.42 1.50 +/- 0.15 1485.00 +/- 109.30 11.78 +/- 1.51 5.31 +/- 2.42 377.60 +/- 104.50 12690 +/- 333 227.38 +/- 95.19 1529.40 +/- 144.60 2.40 +/- 0.97 1.08 +/- 1.02 1.58 +/- 0.17 1.16 +/- 0.47 0.08 +/- 0.01 0.08 +/- 0.01 1.59 +/- 0.07 902.30 +/- 179.00 22.23 +/- 1.58 262.06 +/- 98.96 7.05 +/- 0.71 19.45 +/- 1.14 12.66 +/- 0.52 11.30 +/- 0.28 8.27 +/- 0.78 0.02 +/- 0.01 0.41 +/- 0.14 3.33 +/- 0.11 3.04 +/- 0.22 1334.80 +/- 105.00 0.43 +/- 0.10 1.13 +/- 0.47 291.90 +/- 91.31 10.20 +/- 1.08 3.59 +/- 1.17 484.20 +/- 98.50 0.90 +/- 0.11 1.29 +/- 0.62 1.18 +/- 0.71 7.88 +/- 1.17 6.13 +/- 1.14 1531.00 +/- 133.00 1.60 +/- 0.43 1.52 +/- 0.15 1347.40 +/- 108.30 9.76 +/- 1.26 8.45 +/- 2.78 282.70 +/- 100.70 12679 +/- 333 251.81 +/- 96.15 1404.40 +/- 140.80 1.99 +/- 1.03 1.35 +/- 1.05 1.69 +/- 0.16 1.34 +/- 0.49 0.08 +/- 0.01

.0.09 +/- 0.01 1.66 t 0.08 1076.70 +/- 202.90 19.42 +/- 1.40 233.18 +/- 97.75 7.25 +/- 0.74 20.07 +/- 1.19 13.32 +/- 0.54 11.13 +/-0.19 8.58 +/- 0.46 0.02 +/- 0.00 0.43 +/- 0.09 3.30 +/- 0.07 2.95 +/- 0.21 1305.40 +/- 72.14 0.46 +/- 0.07 1.36 +/- 0.39 251.53 +/- 63.26 9.39 + 0.71 4.64 +/- 0.90 453,25 +/- 68.74 0.92 +/- 0.09 1.23 +/- 0.44 1.70 +/- 0,49 7.00 +/- 0.74 5.99 +/- 0.80 1494.50 +/- 93.34 1.33 +/- 0.30 1.51 +/-0.11 1416.20 +/- 76.93 10.77 +/- 0.98 6.88 +/- 1.84 330.15 +/- 72.56 12685 +/-235 239.60 +/- 67.65 1466.90 +/- 100.91 2.20 +/- 0.71 1.22 +/- 0.73 1.64 +/- 0.12 1.25 +/- 0.34 0.08 +/- 0.01 0.09 +/- 0.01 1.63 +/- 0.05 989.50 +/- 135.29 20.83 _ 1.06 247.62 +/- 69.55 7.15 +/- 0.51 19.76 +/-0.82 12.99 + 0.38 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SG-1506,1507 SG-1506,1507 SW-1645,1646 DW-10095,10096 DW-10095,10096 W-2013,2014 W-2013, 2014 WW-2431,2432 SO-2037,2038 W-2325, 2326 AP-2149, 2150 LW-2191, 2192 G-2170,2171 0-2170,2171 G-2170,2171 SWT-2282, 2283 WW-2233, 2234 WW-2233, 2234 TD-2410,2411 SG-2347, 2348 F-2463, 2464 XW-2834, 2835 WW-2597,2598 MI-2639, 2640 SL-2771, 2772 SL-2771, 2772 SW-2879,2880 SG-2904, 2905 SO-3039,3040 SO-3039,3040 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 WW-3060,3061 VE-3351,3352 VE-3351,3352 W-3469,3470 SG-3539,3540 SG-3539, 3540 AP-3743,3744 4/7/2010 4/7/2010 4/14/2010 4/1412010 4/14/2010 4/16/2010 4/16/2010 4/19/2010 4/22/2010 4/26/2010 4/29/2010 4129/2010 5/3/2010 5/3/2010 5/3/2010 5/4/2010 5/5/2010 5/5/2010 5/10/2010 5/13/2010 5/17/2010 5/20/2010 5/25/2010 5/25/2010 6/1/2010 6/1/2010 6/1/2010 6/7/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/14/2010 6/21/2010 6/21/2010 6/25/2010 6/29/2010 6/29/2010 6/30/2010 Ac-228 Pb-214 H-3 Ra-226 Ra-228 Gr. Alpha Gr. Beta H-3 K-40 H-3 Be-7 Gr. Beta Be-7 Gr. Beta K-40 Gr. Beta Gr. Alpha Gr. Beta H-3 Ra-226 K-40 H-3 H-3 K-40 Gr. Beta K-40 H-3 Gamma Be-7 Cs-137 Gr. Beta K-40 U-233/4 U-238 H-3 Be-7 K-40 H-3 Ac-228 Pb-214 Be-7 1.28 +/- 0.15 1.24 +/-0.10 312.00 +/- 100.00 4.87 +/- 0.53 2.49 +/- 0.56 33.45 +/- 3.98 14.83 +/- 0.96 400.40 +/- 98.10 2.89 +/- 0.40 399.00 +/- 92.00 0.14 +/- 0.08 1.16 +/- 0.56 0.91 +/- 0.32 8.73 +/- 0.22 7.24 +/- 0.44 0.73 +/- 0.52 1.56 +/- 1.47 2.33 +/- 1.14 431.92 +/- 96.50 37.34 +/- 0.42 2.69 +/- 0.56 209.53 +/- 83.34 288.10 +/- 98.20 1428.60 +/- 110.60 5.33 +/- 0.18 4.67 +/- 0.46 335.60 +/- 92.60 5.20 +/- 0.20 0.12 +/- 0.03 0.01 +/- 0.00 22.80 +/- 2.05 11.30 +/- 1.20 0.12 +/- 0.02 0.12 +/- 0.01 199.16 +/- 95.13 1.86 +/- 0.25 6.10 +/- 0.52 573.00 +/- 110.00 14.55 +/- 0.51 15.50 +/- 1.56 0.07 +/- 0.01 1.15 +/- 0.14 1.22 +/- 0.09 352.00 +/- 102.00 5.57 +/- 0.61 2.76 +/- 0.60 39.11 +/- 4.54 16.07 +/- 0.96 377.70 +/- 97.10 2.89 +/- 0.51 429.00 +/- 94.00 0.26 +/-0.12 0,79 +/- 0.52 0.86 +/- 0.26 9.01 +/- 0.23 7,48 +/- 0.78 1,58 +/- 0.57 2,27 +/- 1.65 4.08 +/- 1.24 403.05 +/- 95.26 37.91 +/- 0.36 2.65 +/- 0.38 263,11 +/- 85.95 155.80 +/- 93.40 1408.60 +/- 107.40 5.30 +/- 0.18 4.88 +/- 0.46 356.40 +/- 93.60 5.50 +/- 0,10 0.13 +/- 0.08 0.01 +/- 0.00 23.84 +/- 2,44 11.70 +/- 1.20 0.13 +/- 0.01 0.13 +/- 0.01 203.59 +/- 95.34 1.85 +/- 0.27 6.10 +/- 0.57 525.00 +/- 108.00 14.57 +/- 0.44 16.80 +/- 1.71 0.07 +/- 0.01 1.22 +/- 0.10 1.23 +/- 0.07 332.00 +/- 71.42 5.22 +/- 0.40 2.63 +/- 0.41 36.28 +/- 3.02 15.45 +/- 0.68 389.05 +/- 69.01 2.89 +/- 0.32 414.00 +/- 65.76 0.20 +/- 0.07 0.97 +/- 0.38 0.89 +/- 0.21 8.87 +/- 0.16 7.36 +/- 0.45 1.16 +/- 0.39 1.92 +/- 1.10 3.21 +/- 0.84 417.48 +/- 67.80 37.63 +/- 0.28 2.67 +/- 0.34 236.32 +/- 59.86 221.95 +/- 67,76 1418.70 +/- 77.08 5.32 +/- 0.13 4.78 +/- 0.33 346.00 +/- 65.83 5.35 +/- 0.11 0.13 +/- 0.04 0.01 +/- 0.00 23.32 +/- 1.59 11.50 +/- 0.85 0.13 +/- 0.01 0.13 +/- 0.01 201.38 +/- 67.34 1.85 +/- 0.18 6.10 +/- 0.39 549.00 +/- 77.08 14.56 +/- 0.34 16.15 +/- 1.16 0.07 +/- 0.01 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pci/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance G-3427,3428 G-3427,3428 SW-3512, 3513 AP-3680, 3681 VE-3791, 3792 WW-3934, 3935 DW-10135, 10136 DW-10135, 10136 W-4063,4064 DW-10143,10144 DW-10148, 10149 DW-10148, 10149 DW-10159, 10160 DW-10159,10160 SL-4106, 4107 SL-4106, 4107 SL-4106, 4107 SG-4085, 4086 SG-4085,4086 SWT-4304, 4305 BS-4398, 4399 BS-4398, 4399 VE-4531, 4532 VE-4531, 4532 VE-4531, 4532 VE-4531, 4532 DW-10170,10171 DW-10170,10171 AP-4766, 4767 DW-10182,10183 VE-4928, 4929 SL-4883, 4884 SL-4883, 4884b W-5135,5136 SW-5071, 5072 XWW-5246, 5247 7/1/2010 7/1/2010 7/6/2010 7/8/2010 7/12/2010 7/12/2010 7113/2010 7/1312010 7/1412010 7/1912010 7/23/2010 7/2312010 7/2312010 7/23/2010 8/2/2010 8/212010 8/2/2010 81312010 8/3/2010 8/312010 8/10/2010 8/10/2010 8/11/2010 8/11/2010 8/11/2010 8/11/2010 8/13/2010 8/13/2010 8/26/2010 8/27/2010 9/1/2010 9/1/2010 9/1/2010 9/6/2010 9/13/2010 9/14/2010 Be-7 K-40 H-3 Be-7 K-40 H-3 Ra-226 Ra-228 H-3 Gr. Alpha Ra-226 Ra-228 Ra-226 Ra-228 Be-7 Gr. Beta K-40 Ra-226 Ra-228 Gr. Beta Cs-137 K-40 Gr. Beta K-40 U-233/4 U-238 Ra-226 Ra-228 Be-7 Ra-226 K-40 Gr. Beta K-40 H-3 H-3 H-3 1.18 +/- 0,29 8.79 +/- 0.64 441.00 +/- 103.00 0.16 +/- 0.08 4.37 +/- 0.38 3091.00 +/- 187.00 0.18 +/- 0.07 0.76 +/- 0.44 469.00 +/- 104.00 2.84 +/- 0.74 2.08 +/- 0.39 1.90 +/- 0.61 0.91 +/- 0.14 1.41 +/- 0.54 2.05 +/- 0.20 5.06 +/- 0.32 1.89 +/- 0.24 20.23 +/- 2.04 15.88 +/- 0.41 2.08 +/- 1.07 78.80 +/- 33.50 13708 +/-795 36.20 +/- 0.90 27.31 +/- 0.70 0.014 +/- 0.003 0.012 +/- 0.003 1.32 +/- 0.14 2.55 +/- 0.78 0.18 +/- 0.09 0.15 +/- 0.08 2.99 i 0.41 6.90 +/- 0.20 7.15 +/- 0.99 658.60 +/- 110.80 186.70 +/- 101.10 1990.60 +/- 157.70 1.06 +/- 0.25 7.85 +/- 0,65 423.00 +/- 102.00 0.13 +/- 0.07 4.23 +/- 0.35 3242.00 +/- 191.00 0.26 +/- 0.07 0.81 +/- 0.41 351.00 +/- 99.00 2.49 +/- 0.73 2.97 +/- 0.55 2.00 +/- 0.61 0.79 +/- 0.21 1.30 +/- 0.53 2.05 +/- 0.18 4.62 +/- 0.30 1.70 +/- 0.17 21.45 +/- 2.16 16.24 +/- 0.36 2.44 +/- 0.98 94.30 +/- 51.90 12091 +/- 1110 35.80 +/- 0.90 27.58 +/- 0.62 0.014 +/- 0.003 0.010 +/- 0.002 1.26 +/- 0.14 1.76 +/- 0.71 0.25 +/- 0.13 0.11 +/- 0.07 3.18 +/- 0.28 7.10 +/- 0.20 5.07 +/- 0.51 600.90 +/- 108.50 267.30 +/- 104.40 1986.20 +/- 157.60 1.12 +/- 0.19 8.32 +/- 0.46 432.00 +/- 72.48 0.15 +/- 0.05 4.30 +/- 0.26 3166.50 +/- 133.65 0.22 +/- 0.05 0.79 +/- 0.30 410.00 +/- 71.79 2.67 +/- 0.52 2.53 +/- 0.34 1.95 +/- 0.43 0.85 +/- 0.13 1.36 +/- 0.38 2.05 +/- 0.13 4.84 +/- 0.22 1.80 +/- 0.15 20'84 +/- 1.49 16.06 +/- 0.27 2.26 +/- 0.73 86.55 +/- 30.89 12900 +/-683 36.00 +/- 0.64 27.45 +/- 0.47 0,014 +/- 0.002 0.011 +/- 0.002 1.29 +/- 0.10 2.16 +/- 0.53 0.22 +/- 0.08 0.13 +/- 0.05 3.09 +/- 0.25 7.00 +/- 0.14 6.11 +/-0.56 629.75 +/- 77.54 227.00 +/- 72.66 1988.40 +/- 111.48 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)9 Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 MI-5267, 5268 SO-5357, 5358 AP-5357, 5358 DW-10194, 10195 DW-10194, 10195 WW-5442, 5443 VE-5469, 5470 BS-5886, 5887 BS-5886, 5887 G-5513, 5514 E-5492, 5493 E-5492, 5493 G-5512, 5513 G-5512, 5513 MI-5541, 5542 MI-5541, 5542 F-6061, 6062 F-6061, 6062 VE-5740, 5741 VE-5761, 5762 VE-5761, 5762 AP-5910, 5911 WW-6294, 6295 P-6038, 6039 AP-6195, 6196 WW-6366, 6367 SWU-6315, 6316 SO-6336, 6337 SO-6336, 6337 SO-6336, 6337 AP-6453, 6454 BS-6475, 6476 F-6658, 6659 F-6565, 6566 F-6565, 6566 F-6565, 6566 SS-5761, 5762 WW-7056, 7057 9/9/2010 91912010 9/9/2010 9/9/2010 9/9/2010 9/20/2010 9/23/2010 9/23/2010 9123/2010 912312010 9/29/2010 9/29/2010 9/29/2010 9/29/2010 10/4/2010 10/4/2010 10/4/2010 10/412010 10/4/2010 10/4/2010 10/4/2010 10)9)2010 10/9/2010 10/10/2010 10/12/2010 10/12/2010 10/14/2010 10/1812010 10/19/2010 10121/2010 10/23/2010 10126/2010 10/28/2010 10/28/2010 10128/2010 10/28/2010 11/1/2010 1113/2010 11/4/2010 11/4/2010 11/4/2010 11/16/2010 11/30/2010 Be-7 Gr. Beta H-3 K-40 U-233/4 K-40 K-40 Be-7 Ra-226 Ra-228 H-3 K-40 Cs-137 K-40 Be-7 Gr. Beta K-40 Gr. Beta K-40 K-40 Sr-90 H-3 K-40 K-40 Be-7 K-40 Be-7 H-3 H-3 Be-7 H-3 Gr. Beta Cs-i37 Gr. Beta K-40 Be-7 Gr. Beta K-40 Cs-137 Gr. Beta K-40 K-40 Gr. Beta 1.14 +/- 0.35 34.72 +/- 1.29 79367 +/- 837 22.13 +/- 0.67 0.08 +/- 0.01 1281.10 +/- 118.90 10894.00 +/- 560.00 0.11 +/- 0.02 0.40 +/- 0.10 1.61 +/- 0.65 6706.00 +/- 252.00 2.86 +/- 0.38 83.36 +/- 23.31 13913.00 +/- 775.40 6.73 +/- 0.40 1.74 +/- 0.05 1.57 +/- 0.17 10.86 +/- 0.44 7.10 +/- 0.54 1090.60 +/- 106.70 1.44 +/- 0.38 7.64 +/- 0.23 2.81 +/- 0.40 4.92 +/- 0.53 1.05 +/- 0.29 3.45 +/- 0.45 0.23 +/- 0.09 1681.49 +/- 146.32 2131.90 +/- 159.50 0.27 +/- 0.11 477.28 +/- 102.02 1.85 +/- 1.00 0.23 +/- 0.03 26.36 +/- 1.67 13.43 +/- 0.76 0.23 +/- 0.12 13.13 +/- 1.83 2.79 +/- 0.40 0.06 +/- 0.02 3.90 +/- 0.10 2.63 +/- 0.45 15.42 +/- 1.57 2.09 +/- 0.84 1.48 +/- 0.26 33.38 t 1.23 79421 +/-837 21.93 +/- 0.58 0.06 +/- 0.01 1218.60 +/- 110.80 11175.00 +/- 760.00 0.09 +/- 0.02 0.20 +/- 0.10 0.88 +/- 0.47 6510.00 +/- 249.00 2.57 +/- 0.37 58.97 +/- 21.16 13582.00 +/- 710.30 6,36 +/- 0.41 1.77 +/- 0.05 1.55 +/- 0.18 10.39 +/- 0.39 7.41 +/- 0.59 1246.10 +/- 102.60 1.11 +/-0.35 7.49 +/- 0.23 2.56 +/- 0.50 4.61 +/- 0.34 0.69 +/- 0.15 3.34 +/- 0.29 0.30 +/- 0.12 1637.41 + 144.98 2212.00 +/- 161.70 0.26 +/- 0.13 529.99 +/- 104.27 1.40 +/- 0.90 0.23 +/- 0.04 24.78 +/- 1.52 13.73 +/- 0.81 0.30 +/- 0.15 12.75 +/- 1.67 2.94 +/- 0.44 0.04 +/- 0.01 4.10 +/- 0.10 2.57 +/- 0.35 15.87 +/- 1.21 2.22 +/- 0.80 1.31 +/- 0.22 34.05 +/- 0.89 79394 +/- 592 22.03 +/- 0.44 0.07 +/- 0.01 1249.85 +/- 81.26 11034.50 +/- 472.02 0.10 +/- 0.01 0.30 +/- 0.07 1.25 +/- 0.40 6608.00 +/- 177.13 2.72 +/- 0.26 71.17 +/- 15.74 13747.50 +/- 525.78 6.55 +/- 0.29 1.76 +/- 0.04 1.56 +/- 0.12 10.63 +/- 0.29 7.26 +/- 0.40 1168.35 +/- 74.01 1.27 +/- 0.26 7.57 +/- 0.16 2.68 +/- 0.32 4.77 +/- 0.32 0.87 +/- 0.16 3.40 +/- 0.27 0.26 +/- 0.08 1659.45 +/- 102.99 2171.95 +/- 113.56 0.26 +/- 0.09 503.64 +/- 72.94 1.62 +/- 0.67 0.23 +/- 0.02 25.57 +/- 1.13 13.58 +/- 0.56 0.26 +/-0.10 12.94 +/- 1.24 2.86 +/- 0.30 0.05 +/- 0.01 3.96 +/- 0.06 2,60 +/- 0.29 15.65 +/- 0.99 2.16 +/- 0.58 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass

.Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)0 Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SO-7166, 7167 11/30/2010 Cs-137 0.12

  • 0.04 0.11 +/- 0.03 0.11 +/- 0.03 Pass SO-7166, 7167 11/30/2010 K-40 14.93 +/- 0.88 14.49 +/- 0.86 14.71 +/- 0,61 Pass WW-7412, 7413 1216/2010 H-3 469.78 +/- 146.32 503.57 +/- 93.96 486.68 +/- 86.94 Pass MI-7187, 7188 12/8/2010 K-40 1495.10 +/- 129.00 1398.40 +/- 109.10 1446.75 +/- 84.47 Pass MI-7187, 7188 12/8/2010 Sr-90 0.57 +/- 0.31 0.66. +/- 0.28 0.62 +/- 0.21 Pass WW-7255, 7256 121812010 H-3 243.46 +/- 90.39 327.34 +/- 94.11 285.40 +/- 65.24 Pass AP-7276, 7277 12/9/2010 Be-7 0.13 +/- 0.07 0.18 +/- 0.10 0.16 +/- 0.06 Pass XWW-7297, 7298 12/9/2010 H-3 686.00 +/- 102.00 764.60 +/- 105.00 725.30 +/- 73.19 Pass AP-7344, 7345 12/1612010 Be-7 0.16 +/- 0.09 0.17 +/- 0.09 0.16 +/- 0.06 Pass SWT-7480, 7481 12/28/2010 Gr. Beta 0.90 +/- 0.40 1.03 +/- 0.41 0.97 +/- 0.29 Pass Note: 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.

Results are reported in units of pCi/L, except for air filters (pCi/Fitter), food products, vegetation, soil, sediment (pCi/g).

b Analysis was repeated, result of reanalysis: 4.83 +/- 0.29 pCi/L.

A5-5

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)3.

Concentration b Known Control Lab Code C Date Analysis Laboratory result Activity Limits d Acceptance STVE-1 199 STVE-1 199 STVE-1 199 STVE-1 199 STVE-1 199 STVE-1 199 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 Co-57 Co-60 ds-134 Cs-137 Mn-54 Zn-65 0.01 +/- 0.03 3.39 +/- 0.12 4.74 +/- 0.15 3.32 +/- 0.17 0.01 +/- 0.05 8.03 +/- 0.33 0.40 +/- 0.05 3.03 +/- 0.07 0.00 3.27 4.39 3.06 0.00 7.10 0.68 3.09 2.29 - 4.25 3.07 - 5.71 2.14 - 3.98 4.97 - 9.23 0.00 - 1.35 1.55 - 4.64 Pass Pass Pass Pass Pass Pass Pass Pass STW-1200 03/01/10 Gr. Alpha STW-1 200 03/01/10 Gr. Beta STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1 201 STW-1201 STW-1201 STW-1 201 STW-1201 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1 202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STAP-1 203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 03/01/10 03/01/10 03101/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01110 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 Am-241 Co-57 Co-60 Cs-1 34 Cs-1 37 Fe-55 H-3 Mn-54 Ni-63 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Co-57 Co-60 Cs-1 34 Cs-1 37 K-40 Mn-54 Sr-90 U-233/4 U-238 Zn-65 Am-241 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Sr-90 Zn-65 1.05 +/- 0.08 28.90 +/- 0.40 0.06 +/- 0.05

-0.03 +/- 0.09 60.60 +/- 0.60 3.00 +/- 14.40 93.20 +/- 18.30 27.80 +/- 0.40 49.10 +/- 3.50

-0.10 +/- 0.60 0.50 +/- 0.50 1.21 +/- 0.05 1.20 +/- 0.05 42.70 +/- 0.80 520.00 +/- 10.80 599.10 +/- 2.80 666,10 +/- 4.70 774.40 +/- 4.50 562.00 +/- 15.30 866.20 +/- 4.60 225.50 +/- 11.80 59.90 +/- 2.50 62.10 +/- 2.60

-1.23 +/- 1.96 0.10 +/- 0.01 0.01 +/- 0.02 2.63 +/- 0.19 2.21 +/- 0.34 1.66 +/- 0.22 3.42 +/- 0.26 0.02 +/- 0.06

-0.05 +/- 0.11 1.30 28.30 0.00 0.00 60.60 0.00 90.80 26.90 59.90 0.00 0.00 1.22 1.25 40.70 522.00 622.00 733.00 779.00 559.00 849.00 288.00 60.00 64.00 0.00 0.15 0.00 2.47 2.13 1.53 3.02 0.00 0.00 0.91 -1.69 19.80 - 36.80 42.40 - 78.80 63.60 - 118.00 18.80 -35.00 41.90 - 77.90 0.85 - 1.59 0.88-1.63

'28.50 - 52.90 365.00 - 679.00 435.00 - 809.00 513.00 - 953.00 545.00 - 1013.00 391.00 -727.00 594.00 -1104.00 202.00 - 374.00 42.00 - 78.00 45.00 -83.00 0.10 -0.19 1.73 -3.22 1.49 -2.77 1.07 -1.99 2.11 -3.93 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A6-1

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.

Concentration b Known Control Lab Code' Date Analysis Laboratory result Activity*

Limits d Acceptance STAP-1204 03/01/10 Gr. Alpha STAP-1204 03/01/10 Gr. Beta 0.13 +/- 0.03 1.46 +/- 0.07 0.43 1.29 0.00 - 0.85 0.65 -1.94 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01(10 08/01/10 08/01/10 08/01/10 08/01110 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 Am-241 Co-57 Co-60 Cs-134 Cs-137 Fe-55 H-3 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 STW-1212 08/01/10 Gr. Alpha STW-1212 08/01110 Gr. Beta 0.02 +/- 0.02 36.40 +/- 4.80 28.30 +/- 1.00 29.30 +/- 2.10 44.60 +/- 1.80 48.50 +/- 20.10 503.60 +/- 12.80 38.50 +/- 2.50 0.10 +/- 0.30 49.30 +/- 3.10 1.49 +/- 0.15 1.20 +/- 0.10 9.20 +/- 1.30 28.10 +/- 0.90 2.04 +/- 0.14 2.05 +/- 0.14 32.80 +/- 3.00 1.54 +/- 0.09 4.13 +/- 0.15 9.60 +/- 0.54 0.05 +/- 0.08 4.83 +/- 0.26 6.45 +/- 0.66 7.12 +/- 0.66 6.05 +/- 0.74 0.10 +/- 1.60 370.00 +/- 6.00 1005.00 +/- 21.00 755.00 +/- 15.00 783.00 +/- 54.00 942.00 +/- 15.00 69.20 +/- 6.20 76.50 +/- 6.20 3.50 +/- 8.00 76.50 +/- 6.20 271.40 +/- 9.00 310.00 +/- 18.00 0.00 36.00 28.30 31.40 44.20 60.20 453.40 38.90 0.00 56.10 1.81 1.35 8.30 33.60 2.01 2.07 31.00 1.92 4.39 8.27 0.00 4.79 5.88 6.29 5.39 0.00 343.00 940.00 670.00 699.00 820.00 64.00 71.00 0.00 71.00 289.00 265.00 25.20 - 46.80 19.80 -36.80 22.00 - 40.60 30.90 - 57.50 42.10 - 78.30 317.40 - 589,40 27.20 - 50.60 39.30 - 72.90 1.27 -2.35 0.95 - 1.76 5.80 - 10.80 23.50 - 43.70 1.41 -2.61 1.45 - 2.69 21.70 -40.30 0.58 - 3.26 2.20 - 6.59 5.79 - 10.75 3.35 - 6.23 4.12 -7.64 4.40 -8.17 3.77 - 7.01 240.00 - 446.00 658.00 - 1222.00 469.00 -871.00 489.00 - 909.00 574.00 - 1066.00 45.00 - 83.00 50.00 - 92.00 50.00 - 92.00 202.00 - 376.00 186.00 - 345.00 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STVE-1213 STVE-1213 STVE-1213 STVE-1213 STVE-1213 STVE-1213 STSO-1 214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Zn-65 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Pu-238 Pu-239140 Sr-90 U-233/4 U-238 Zn-65 A6-2

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.

Concentration b Known Control Lab Code Date Analysis Laboratory result Activity Limits d Acceptance STAP-1215 08/01/10 Co-57 4.47 +/- 0.21 4.08 2.86 - 5.30 Pass STAP-1215 08/01/10 Co-60 3.15 +/- 0.30 2.92 2.04 - 3.80 Pass STAP-1215 08/01/10 Cs-134 3.03 +/- 0.17 2.98 2.09 -3.87 Pass STAP-1215 08/01/10 Cs-137 0.01 +/- 0.05 0.00 Pass STAP-1215 08/01/10 Mn-54 3.69 +/- 0.39 3.18 2.23 -4.13 Pass STAP-1215 08/01/10 Sr-90 1.00 +/- 0.12 1.01 0.71-1.31 Pass STAP-1215 08/01/10 Zn-65 0.03 +/- 0.15 0.00 Pass STAP-1216 08/01/10 Gr. Alpha 0.01 +/- 0.01 0.00 Pass STAP-1216 08/01/10 Gr. Beta 0.54 +/- 0.05 0.50 0.25 -0.75 Pass 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 Results are reported in units of Bqfkg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

' Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

d MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

A6-3

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L)

Lab Code b Date Analysis Laboratory ERA Control Result '

Result d Limits Acceptance STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20110 09/20/10 Am-241 Co-60 Cs-134 Cs-i 37 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zri-65 55.6 +/- 2.9 517.1 +/- 9.1 384.6 +/- 33.7 589.4 +/- 7.1 0.0 +/- 0.0 76.5 +/- 4.0 73.0 +/- 3.8 172.9 +/-21.3 64.9 +/- 3.9 68.0 +/- 4.0 135.5 +/- 8.7 563.1 +/- 15.3 66.1 +/- 3.2 69.9 +/- 2.5 74.1 479.0 388.0 514.0 72.9 69.6 159.0 71.8 71.2 146.0 465.0 52.3 52.7 43.3 - 102.0 371.0 - 598.0 253.0 - 480.0 386.0 - 675.0 50.0 - 95.8 50.5 - 90.1 70.0 - 247.0 45.2 - 106.0 45.6-101.0 74.6 - 232.0 322.0 - 644.0 27.1 - 78.7 32.5 - 77.0 STAP-1218 09120/10 Gr. Alpha STAP-1218 09120/10 Gr. Beta STSO-1219 09120/10 STSO-1219 09120/10 STSO-1219 09120/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09120/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09/20/10 STSO-1219 09120110 STSO-1219 e 09120/10 STSO-1219 e 09/20/10 STSO-1219 e 09/20/10 STSO-1219 09/20/10 STVE-1220 09/20110 STVE-1220 09/20/10 STVE-1220 09120/10 STVE-1220 09/20/10 STVE-1220 09/20/10 Ac-228 Am-241 Bi-212 Bi-214 Co-60 Cs-134 Cs-137 K-40 Mn-54 Pb-212 Pb-214 Pu-238 Pu-239/40 U-233/234 U-238 Uranium Zn-65 Co-60 Cs-134 Cs-137 K-40 Mn-54 1632.0 +/- 80.4 1063.0 +/- 120.9 1752.0 +/- 255.6 909.3 +/- 38.9 4852.0 +/- 153.5 2190.0 +/- 50.7 3584.0 +/- 42.5 10017.0 +/- 274.5 0.0 +/- 0.0 1573.0 +/- 28.2 999.0 +/- 39.2 1568.0 +/- 155.0 1445.0 +/- 142.9 599.4 +/- 69.4 633.8 +/- 71.3 1248.0 +/- 152.7 2447.0 +/- 60.1 1108.0 +/- 38.7 1161.0 +/- 57.3 1400.0 +/- 43.0 27400.0 +/- 683.4 0.0 +/- 0.0 1830.0 1120.0 2070.0 983.0 4780.0 2240.0 3530.0 10700.0 1640.0 969.0 1280.0 1180.0 1360.0 1340.0 2770.0 2300.0 1010.0 1040.0 1260.0 22600.0 1170.0 -2580.0 669.0 - 1440.0 543.0 - 3100.0 603.0 - 1410.0 3480.0 - 6420.0 1440.0 -2700.0 2700.0 -4580.0 7760.0 - 14500.0 1060.0 -2310.0 580.0 - 1440.0 733.0 - 1800.0 805.0 - 1570.0 862.0 -1690.0 819.0 - 1700.0 1580.0 -3740.0 1820.0 -3080.0 683.0 - 1450.0 595.0 - 1440.0 924.0 -1750.0 16200.0 -32000.0 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Fail Fail Pass Pass Pass Pass Pass Pass A7-1

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L)

Lab Code b Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance STVE-1220 09/20/10 Am-241 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09120110 09/20/10 09/20/10 09/20110 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 Cm-244 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zn-65 Am-241 Co-60 Cs-134 Cs-137 Fe-55 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zn-65 4185.0 +/- 180.0 2329.0 +/- 132.5 4912.0 +/- 194.0 4765.0 +/- 111.0 7706.0 +/- 583.9 3862.0 +/- 203.0 3926.0 +/- 205.3 7671.0 +/- 201.2 1443.0 +/- 81.0 127.9 +/- 4.2 697.8 +/- 10.4 437.5 +/- 13.3 612.8 +/- 11.6 936.8 +/- 508.2 0.0 +/- 0.0 148.1 +/- 6.0 154.1 +/- 6.2 872.3 +/- 13.4 99.1 +/- 4.4 103.7 +/- 4.5 206.5 +/- 9.8 489.1 +/- 16.2 4760.0 2740.0 4740.0 4470.0 7810.0 4010.0 3980,0 8180.0 1210.0 176.0 714.0 492.0 625.0 825.0 162.0 148.0 921.0 109.0 108.0 221.0 489.0 146.0 143.0 2710.0 -6540.0 1350.0 - 4270.0 2560.0 - 6940.0 2770.0 - 6100.0 4360.0 - 10400.0 2750.0 - 5320.0 2800.0 - 5030.0 5620.0 - 10600.0 874.0 - 1650.0 120.0 -238.0 622.0 - 844.0 363.0 - 565.0 531.0 - 749.0 480.0 - 1100.0 122.0 - 201.0 114.0 - 183.0 585.0 - 1230.0 82.2 - 140.0 82.5 - 134.0 159.0 - 294.0 414.0 - 610.0 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1222 09/20/10 Gr. Alpha STW-1222 09/20/10 Gr. Beta STW-1223 09/20/10 H-3 110.6 +/-_3.5 134.6 +/-2.6 64.8 - 216.0 83.6 - 210.0 23500.0 +/- 1438.0 21600.0 14100.0 -31900.0 B Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML),

b Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

' Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

d Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". Control limits are not provided.

Analysis was repeated using total dissolution. Results of the reanalysis, U-233/234: 1137 +/- 254 pCi/kg, U-238: 1193 1 116 pCi/kg, Total Uranium: 2379 +/- 254 pCi/kg.

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 = 2at 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 4.66a uncertainty for a background sample.

3.0. Duplicate analyses If duplicate analyses are reported, the convention is as follows.

3.1 Individual results: For two analysis results; x1 _ s1 and x2 +/- s 2 Reported result:

x +/- s; where x = (1/2) (x1 + x 2) and s = (1/2)

Is

+s 3.2.

Individual results:

< Li I < L2 Reported result: < L, where L = lower of Li and L2 3.3.

Individual results:

x +/- s, < L Reported result:

x +/- s if x a 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 xi, x2...

xn are defined as follows:

-1 1

x =

x S=

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 numbers 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 a

background in unrestricted areas.

Air (pCi/m 3)

Water (pCi/L)

Gross alpha Gross beta b

Iodine-i 31

-3 1 )x10 1x1 2.8 x 10 Strontium-89 Strontium-90 Cesium-1 37 Barium-140 Iodine-I 31 Potassium-40 Gross alpha Gross beta Tritium 8,000 500 1,000 8,000 1,000 4,000 2

10 6

1 x 10 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 2010 was completed during September of 2010. All milk animals, residences 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 2 1st, 2010 for water use downstream of the DAEC to Cedar Rapids. This survey identified no new usages of river water from previous surveys. Irrigation at the strawberry farm in Palo has been discontinued. Recreational fishing is the only identified food pathway use of Cedar River water between the DAEC and the City of Cedar Rapids eight miles down-river.

There were 75 vegetable gardens identified during the performance of the 2010 Census. This number is less than the number of gardens found in the 2009 survey by two. In the sector towards the Southwest, the distance to the nearest vegetation receptor changed from 4370 meters to 4380 meters. There were no other changes to the locations of the nearest vegetable receptors.

There were no changes in the observed milk animal or cattle locations within the 3 mile radius of the plant in the past year.

The locations of the nearest residence for each sector remained the same as 2009. In 2010, only three new homes were constructed within three miles of the DAEC.

Since the last performance of the land use census, a new drinking water well has been identified within a two mile radius of the site. The well is located 3,200 meters towards the West-North-West. The well is (hydrologically) up-gradient of the site. There were no other new land use or water use activities that could affect the Site Hydrogeological Conceptual Model.

D-2

In accordance with the DAEC's Environmental Sampling Procedure ESP 4.4, "Land Use Census", no changes in land use were identified that would adversely affect the safe operation of the DAEC, or that would warrant an update of the DAEC Updated Final Safety Analysis Report (UFSAR). Examples of land use that would warrant an UFSAR update include new hazards near the DAEC such as new gas pipelines or new installations utilizing toxic gases.

NextEra Energy Resources, Duane Arnold has committed to compliance with NEI 07-07, "Nuclear Energy Institute's Industry Ground Water Protection Initiative:

Per NEI 07-07, the following information is presented:

  • Per Objectives 2.2 and 2.4, there were no on-site leaks or spills that warranted notification of state or local officials or other local stakeholders.

" No radioactive reactor by-product material was identified in samples taken by the DAEC's Radiological Environmental Monitoring Program (REMP) above the threshold concentration levels for reporting.

D-3

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 dosimetry 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 2010 TLD results were evaluated with a paired difference statistical test.

The evaluation concluded that there were no significant differences in the TLD populations for the 0.5 mile and 1 mile TLD populations.

2. As stated in Part 1 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 liquid and gaseous effluent releases was calculated using the Meteorological Information and Dose Assessment System (MIDAS) computer program in accordance with the ODAM. The calculation methods follow those prescribed by Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I".

Following calculation of offsite doses, the appropriateness of REMP sampling station types and locations was reviewed. The current sampling scheme was determined to be more than adequate for the identified receptors.

Results of the MIDAS dose calculations are displayed below.

1. The hypothetical maximally exposed organ due to liquid effluents was the liver of a child with an estimated dose equivalent of 0.00000229 mrem.
2. The whole body dose equivalent to the hypothetical maximally exposed individual due to liquid effluents was 0.00000229 mrem.
3. The maximum dose to air at the site boundary from noble gases released was 0.000541 mrad from gamma radiation at 1,257 meters towards the North-North-West.
4. The maximum dose to air at the site boundary from noble gases released was 0.000647 mrad beta radiation at 1,257 meters towards the North-North-West.
5. The whole body dose equivalent to the hypothetical maximally exposed individual from noble gases was 0.000320 mrem, at 805 meters towards the West.
6. The skin dose equivalent to the hypothetical maximally exposed individual from noble gases was 0.000650 mrem, at 805 meters towards the West.
7. The hypothetical maximally exposed organ due to airborne iodines and particulates with half-lives greater than eight days was the thyroid of a child at 805 meters to the West, with an estimated dose equivalent of 0.00636 mrem.

E-2

Carbon14 The estimate of gaseous carbon-14 (C-14) released from the Duane Arnold Energy Center was derived using guidance from the EPRI document, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents", Report 1021106, issued December 2010. The total amount of C-14 released in 2010 was estimated to be 8.17 Curies.

Using the dose calculation methodology from Regulatory Guide 1.109, the resultant maximally exposed receptor organ from C-14 is the bone of a child, located 1.5 miles to the West-South-West of the site. The dose is 9.8E-02 mrem. (0.098 mrem).

==

Conclusion:==

No measurable dose due to the operation of the DAEC was detected by environmental TLDs in 2009. 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 2010 Type Age I Distance Direction Dose or Dose Equivalent Annual 10 CFR 50, 1 Groupj (meters)

(mrem)

Appendix I "Limit" Direct Radiation None (as measured by TLDs)

Liquid Releases Whole Body Dose Child S

0.00000229 mrem 3 mrem Organ Dose Child -

S 0.00000229 mrem 10 mrem Liver Noble Gas Gamma Air Dose 1,257 NNW 0.000541 mrad 10 mrad Beta Air Dose 1,257 NNW 0.000647 mrad 20 mrad Whole Body All 805 W

0.000320 mrem 5 mrem Skin Child 1,620 NNW 0.000650 mrem 15 mrem Particulates & lodines Organ Dose Child -

805 W

0.00636 mrem 15 mrem Thyroid Carbon 14 Organ Dose Child -

2,470 WSW 0.098 mrem 15 mrem Bone

  • k There is no Appendix I limit for direct radiation. It is listed here to demonstrate compliance with 40 CFR 190 limits of 25 mrem whole body and 75 mrem thyroid.

E-3

  • ATI Environmental, Inc.

TI Midwest Laboratory 700 Landwehr Road - Northbrook, IL 60062-2310 phone (847) 564-0700

  • fax (647) 564-4517 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, 2010 Prepared by ATI ENVIRONMENTAL, Inc.

Midwest Laboratory Project No. 8001 Reviewed and Approved L

rbo i

0 M.S.

boto nager

TABLE OF CONTENTS Section Page L ist o f T a b le s..............................................................................

................................ iii

1.0 INTRODUCTION

v 2.0 PROGRAM DEVIATIONS................................................................. vi 3.0 DATA TABLES............................................................................................................

vii Appendices A

Supplemental Analyses.......................................................................................

A-1 ii

LIST OF TABLES No.

Title Page 1

Airborne particulates and iodine collected at Location D-3 (Hiawatha), analysis for gross beta and iodine-13 1.....................................................................................................

1-1 2

Airborne particulates and iodine collected at Location D-5 (Palo), analysis for gross beta a nd io d ine-13 1.............................................................................................................

2-1 3

Airborne particulates and iodine collected at Location D-6 (Center Point), analysis for gross beta and iodine-131..........................................................................................

3-1 4

Airborne particulates and iodine collected at Location D-7, (Shellsburg), analysis for gross beta and iodine-13 1..........................................................................................

4-1 5

Airborne particulates and iodine collected at Location D-11 (Toddsville), analysis for gross beta and iodine-13 1...........................................................................................

5-1 6

Airborne particulates and iodine collected at Location D-13 (Alburnett), analysis for gross beta and iodine-13 1..................................................................................

......... 6-1 7

Airborne particulates and iodine collected at Location D-15 (on-site, north), analysis for gross beta and iodine-13 1...........................................................................................

7-1 8

Airborne particulates and iodine collected at Location D-16 (on-site, south), analysis for gross beta and iodine-13 1...........................................................................................

8-1 9

Airborne particulates and iodine collected at Location D-40 (Toddsville), analysis for gross beta and iodine-13 1...........................................................................................

8-1 10 Airborne particulate samples, quarterly composites of weekly samples, analysis for gam m a-em itting isotopes..........................................................................................

10-1 11 Ambient gamma radiation as measured by thermoluminescent dosimeters (TLD),

quarterly exposure.....................................................................................................

11-1 12 Milk samples, analysis for iodine-131 and gamma emitting isotopes......................................

12-1 13 Ground water 13.1 Area wells, analysis for gross beta and tritium..................................................................

13-1 13.2 On-site monitoring wells, analysis for gross beta and tritium............................................

13-2 14 Vegetation samples (broadleaf), analysis for iodine-1 31 and gamma-emitting isotopes......... 14-1 15 Vegetation samples (hay and grain), analysis for gamma-emitting isotopes...........................

15-1 16 Surface water samples, analysis for tritium and gamma-emitting isotopes.............................

16-1 17 Surface water samples, quarterly composites of monthly samples, analysis for strontium-89 and strontium-90...................................................................................

17-1 18 Fish samples, analysis for gamma-emitting isotopes............................................................

18-1 19 River sediment samples, analysis for gamma-emitting isotopes.............................................

19-1 20 Precipitation 20.1 Precipitation, monthly collections, analysis for gamma-emitting isotopes........................ 20-1 20.2 Precipitation, quarterly composites of monthly samples, analysis for tritium.................... 20-1 21 Soil samples, analysis for strontium-90 and gamma-emitting isotopes...................................

21-1 iii

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 2010. 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.

All concentrations, except gross beta and airborne iodine, are decay corrected to the time of collection. Airborne 1-131 is decayed to the midpoint of the collection period.

The required values for lower limits of detection (LLD) for gamma emitting isotopes are established through the Offsite Dose Assessment Manual (ODAM). Naturally occurring radioisotopes, such as Be-7, K-40 and Ra daughters, are frequently detected, but may not be listed for every sample medium.

iv

2.0 PROGRAM DEVIATIONS Sample Collection Date Type Analysis Location(s) or Period Comments AP/AI Gross Beta Gamma P

Gamma AP/AI MI MI AP/AI AP/Al AP/AI SW SW VE Gross Beta Gamma 1-131, Gamma 1-131, Gamma Gross Beta Gamma Gross Beta Gamma Gross Beta Gamma H-3 Gamma H-3 Gamma Gamma D-15 D-16 D-7 D-108 D-110 D-6 D-7 D-15 D-50 D-99 D-94 02-04-10 No particulates found deposited on filter.

2-25-10 Required limits of detection not met due to insufficient sample volume.

05-13-10 Partial sample, 77 m3, due to faulty line cord.

06-15-10 Sample damaged and lost in transit.

06-15-10 Sample damaged and lost in transit.

08-05-10 to No sample due to construction 09-02-10 08-12-10 Partial sample, 85 m3, due to faulty line cord.

09-30-10 Partial sample, 205 m3, due to power outage.

12-08-10 No sample; water frozen..

12-08-10.

No sample; water frozen.

2010 Location dropped from program.

v

3.0 DATA TABLES vi

DUANE ARNOLD Table 1. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-3 (Hiawatha)

Units: pCi/mr 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (mi)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 343 299 300 302 297 300 301 299 297 291 290 292 291 0.045 +/- 0.004 0.042 +/- 0.004 0.033 +/- 0.004 0.025 +/- 0.003 0.030 +/- 0.004 0.028 +/- 0.003 0.024 +/- 0.003 0.036 +/- 0.004 0.031 +/- 0.004 0.027 +/- 0.003 0.020 +/- 0.003 0.023 +/- 0.004 0.028 +/- 0.003 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 275 274 275 274 265 275 273 274 268 266 284 287 284 0.020 +/- 0.003 0.031 +/- 0.004 0.028 +/- 0.004 0.021 +/- 0.003 0.032 +/- 0.004 0.027 +/- 0.004 0.032 +/- 0.004 0.041 +/- 0.004 0.023 +/- 0.004 0.024 +/- 0.003 0.020 +/- 0.003 0.029 +/- 0.004 0.023 +/- 0.003 1st Quarter Mean +/- s.d.

0.030 +/- 0.007 3rd Quarter Mean +/- s.d.

0.027 +/- 0.006 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 288 288 290 249 334 290 290 291 278 271 235 312 273 0.023 +/- 0.003 0.029 +/- 0.004 0.025 +/- 0.003 0.025 +/- 0.004 0.018 +/- 0.003 0.011 +/- 0.003 0.017 +/- 0.003 0.016 +/- 0.003 0.027 +/- 0.003 0.020 +/- 0.003 0.018 +/- 0.003 0.017 +/- 0.003 0.020 +/- 0.003 0.021 +/- 0.005 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 330 241 284 284 286 286 287 244 324 264 196 263 260 0.022 +/- 0.003 0.049 +/- 0.005 0.032 +/- 0.004 0.031 +/- 0.004 0.022 +/- 0.003 0.029 +/- 0.004 0.050 +/- 0.004 0.031 +/- 0.004 0.039 +/- 0.004 0.O46 +/- 0.004 0.070 +/- 0.006 0.053 +/- 0.005 0.024 +/- 0.004 0.038 +/- 0.014 2nd Quarter Mean +/- s.d.

4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.029 0.029 a Iodine-131 concentrations are < 0.03 pCi/m 3 unless noted otherwise.

1-1

DUANE ARNOLD Table 2, Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-5 (Palo)

Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Collected Required LLD Volume (m")

Gross Beta 0.010 Date Collected Required LLD Volume (m")

Gross Beta 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 317 263 286 289 282 286 290 269 281 285 286 288 265 0.050 +/- 0.004 0.051 +/- 0.005 0.036 +/- 0.004 0.026 +/- 0.003 0.031 +/- 0.004 0.033 +/- 0.004 0.022 +/- 0.003 0.045 +/- 0.004 0.033 +/- 0.004 0.031 +/- 0.004 0.018 +/- 0.003 0.017 +/- 0.003 0.032 +/- 0.004 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 292 291 292 290 290 292 290 291 291 292 291 293 290 0.048 +/- 0.004 0.024 +/- 0.003 0.028 +/- 0.003 0.019 +/- 0.003 0.030 +/- 0.004 0.028 +/- 0.004 0.031 +/- 0.004 0.039 +/- 0.004 0.029 +/- 0.004 0.026 +/- 0.003 0.029 +/- 0.004 0.026 +/- 0.003 0.026 + 0.004 1st Quarter Mean +/- s.d.

0.033 +/- 0.011 3rd Quarter Mean +/- s.d.

0.029 +/- 0.007 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 263 266 264 228 304 265 266 285 268 263 229 331 290 0.030 +/- 0.004 0.028 +/- 0.004 0.025 +/- 0.004 0.021 +/- 0.004 0.018 +/- 0.003 0.013 +/- 0.003 0.019 +/- 0.003 0.016 +/- 0.003 0.028 +/- 0.004 0.026 +/- 0.004 0.016 +/- 0.003 0.017 +/- 0.003 0.018 +/- 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 337 245 291 290 292 292 293 249 322 279 242 283 276 0.022 +/- 0.003 0.048 +/- 0.005 0.033 +/- 0.004 0.026 +/- 0.003 0.023 +/- 0.003 0.027 +/- 0.004 0.039 +/- 0.004 0.033 +/- 0.004 0.043 +/- 0.004 0.039 +/- 0.004 0.049 +/- 0.005 0.052 +/- 0.004 0.021 +/- 0.003 2nd Quarter Mean +/- s.d.

0.021 +/- 0.006 4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.035 +/- 0.011 0.030 0.031 a Iodine-131 concentrations are < 0.03 pCi/ms unless noted otherwise.

2-1

DUANE ARNOLD Table 3. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-6 (Center Point)

Units: pCi/mr 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (mi)

Gross Beta Required LLD 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 326 286 284 288 283 285 294 294 292 294 293 294 294 0.010 0.047 +/- 0.004 0.054 +/- 0.005 0.042 +/- 0.004 0.028 +/- 0.003 0.046 +/- 0.004 0.034 +/- 0.004 0.026 +/- 0.003 0.039 +/- 0.004 0.028 +/- 0.003 0.024 +/- 0.003 0.017 +/- 0.003 0.021 +/- 0.003 0.028 +/- 0.003 0.033 +/- 0.011 Required LLD 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 311 277 223 272 0.010 0.033 +/- 0.004 0.033 +/- 0.004 0.036 +/- 0.004 0.020 +/- 0.003 NDc NDc NDc NDc NDc 287 285 287 284 0.023 +/- 0.003 0.025 +/- 0.003 0.025 +/- 0.003 0.026 +/- 0.004 1st Quarter Mean +/- s.d.

3rd Quarter Mean +/- s.d.

0.028 +/- 0.006 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 294 209 207 179 239 207 285 285 290 282 246 324 284 b

b b

b b

0.020 +/- 0.003 0.039 +/- 0.005 0.026 +/- 0.004 0.027 +/- 0.005 0.020 +/- 0.004 0.012 +/- 0.004 0.021 +/- 0.003 0.017 +/- 0.003 0.029 +/- 0,003 0.022 +/- 0.003 0.024 +/- 0.004 0.018 +/- 0,003 0.018 +/- 0.003 0.023 +/- 0.007 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 330 240 286 285 287 286 286 253 336 292 254 296 290 0.025 +/- 0.003 0.054 +/- 0.005 0.029 +/- 0.004 0.026 +/- 0.003 0.021 +/- 0.003 0.028 +/- 0.004 0.034 +/- 0.004 0.032 +/- 0.004 0.043 +/- 0.004 0.046 +/- 0.004 0.055 +/- 0.005 0.053 +/- 0.004 0.020 +/- 0.003 0.036 +/- 0.013 2nd Quarter Mean +/- s.d.

4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.030 0.030 a Iodine-131 concentrations are < 0.03 pCi/mr3 unless noted otherwise.

b Recalculated with revised flowrate at client request.

c ND = No data; see Table 2.0, Listing of Missed Samples.

3-1

DUANE ARNOLD Table 4. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-7 (Shellsburg)

Units: pCi/mr 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (ms)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 327 254 286 289 285 280 282 279 276 278 276 274 261 0.040 +/- 0.004 0.051 +/- 0.005 0.039 +/- 0.004 0.013 +/- 0.003 0.010 +/- 0.003 0.034 +/- 0.004 0.029 +/- 0.004 0.043 +/- 0.004 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 286 285 287 282 286 85 284 285 285 286 285 287 284 0.016 +/- 0,003 0.031 +/- 0.004 0.026 +/- 0.003 0.018 +/- 0.003 0.044 +/- 0.004 c

0.026 +/- 0.008 0.028 +/- 0.004 0.042 +/- 0.004 0.022 +/- 0.003 0.022 +/- 0.003 0.030 +/- 0.004 0.027 +/- 0.003 0.022 +/- 0.003 0.027 +/- 0.008 0.035 0.029 0.018 0.019 0.035

+/- 0.004

+/- 0.004

+/- 0.003

+/- 0.004

+/- 0.004 1st Quarter Mean +/- s.d.

0.030 +/- 0.012 3rd Quarter Mean +/- s.d.

04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 269 277 278 240 236 77 284 286 290 282 246 325 285 0.028 +/- 0.003 0.029 +/- 0.004 0.024 +/- 0.003 0.024 +/- 0.004 0.024 +/- 0.004

< 0.013 0.017 +/- 0.003 0.018 +/- 0.003 0.024 +/- 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 330 240 286 285 287 255 277 209 294 235 195 218 219 0.024 +/- 0.003 0.046 +/- 0.005 0.030 +/- 0.004 0.026 +/- 0.003 0.024 +/- 0.003 0.029 +/- 0.004 0.038 +/- 0.004 0.036 +/- 0.005 0.043 +/- 0.004 0.047 +/- 0.005 0.078 +/- 0.007 0.067 +/- 0.006 0.029 +/- 0.004 0.018 0.018 0.016 0.022

+/- 0.003

+/- 0.003

+/- 0.003

+/- 0.003 2nd Quarter Mean +/- s.d.

0.022 +/- 0.004 4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.040 +/- 0.017 0.030 0.028 a lodine-131 concentrations are < 0.03 pCi/mr3 unless noted otherwise.

b Low volume due to loose electric plug. Iodine-131 result = 0.043 pCi/m 3; LLD not reached due to low volume.

C Low volume due to loose electric plug. lodine-131 result = 0.042 pCi/m ; LLD not reached due to low volume.

4-1

DUANE ARNOLD Table 5. Airborne particulates and charcoal canisters, analyses for gross beta and i+/-dine-131a.

Location: D-11 (Toddville)

Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (ma)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 320 280 280 01-28-10 283 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 277 280 307 305 303 305 304 306 305 0.047 +/- 0.004 0.048 +/- 0.004 0.037 +/- 0.004 0.028 +/- 0.003 0.030 +/- 0.004 0.030 +/- 0.004 0.016 +/- 0.003 0.033 +/- 0.004 0.020 +/- 0.003 0.024 +/- 0.003 0.015 +/- 0.003 0.011 +/- 0.003 0.023 +/- 0.003 07-29-10 282 0.021 +/- 0.003 07-08-10 07-15-10 07-22-10 286 0.016 +/- 0.003 285 0.027 +/- 0.003 287 0.025 +/- 0.003 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 288 286 284 285 285 287 285 287 284 0.044 +/- 0.004 0.025 +/- 0.003 0.023 +/- 0.003 0.033 +/- 0.004 0.019 +/- 0.003 0.023 0.022 0.025 0.021

+/- 0.003

+/- 0.003

+/- 0.003

+/- 0.003 1st Quarter Mean +/- s.d.

0.028 +/- 0.011 3rd Quarter Mean +/- s.d.

0.025 +/- 0.007 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 306 306 303 262 350 284 286 285 290 282 246 324 285 0.015 +/- 0.003 0.026 +/- 0.003 0.020 +/- 0.003 0.012 +/- 0.003 0.003 +/- 0.002 0.014 +/- 0.003 0.018 +/- 0.003 0.019 +/- 0.003 0.023 +/- 0.003 0.020 +/- 0.003 0.017 +/- 0.003 0.016 +/- 0.003 0.020 +/- 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 330 243 283 282 287 276 278 238 316 275 240 281 271 0.018 0.043 0.026 0.024

+/- 0.003

+/- 0.005

+/- 0.004

+/- 0.003 0.020 +/- 0.003 0.029 +/- 0.004 0.038 +/- 0.004 0.035 +/- 0.004 0.043 +/- 0.004 0.038 +/- 0.004 0.048 +/- 0.005 0.036 +/- 0.004 0.017 +/- 0.003 2nd Quarter Mean +/- s.d.

0.017 +/- 0.006 4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.032 +/- 0.010 0.025 0.031 8 Iodine-131 concentrations are < 0.03 pCi/m 3 unless noted otherwise.

5-1

DUANE ARNOLD Table 6. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-13 (Alburnett)

Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (ms)

Gross Beta Collected (mi)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 326 286 284 289 285 250 245 246 272 285 284 267 299 0.048 +/- 0.004 0.052 +/- 0,004 0.041 +/- 0.004 0.027 +/- 0.003 0.033 +/- 0.004 0.037 +/- 0.004 0.029 +/- 0.004 0.053 +/- 0,005 0.032 +/- 0.004 0.025 +/- 0.003 0.023 +/- 0.003 0.022 +/- 0.004 0.029 +/- 0.003 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 292 291 293 291 290 292 290 291 291 292 282 284 282 0.015 +/- 0.003 0.026 +/- 0.003 0.028 +/- 0.003 0.020 +/- 0.003 0.029 +/- 0.004 0,024 +/- 0.003 0,030 +/- 0.004 0.032 +/- 0.004 0,020 +/- 0.003 0,021 +/- 0.003 0.027 +/- 0.004 0,026 +/- 0.003 0.023 +/- 0.003 1st Quarter Mean +/- s.d.

0.035 +/- 0.011 3rd Quarter Mean +/- s.d.

0.025 +/- 0.005 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 310 317 306 265 353 307 308 308 313 305 265 331 290 0.024 +/- 0.003 0.026 +/- 0.003 0.020 +/- 0.003 0.022 +/- 0.004 0,015 +/- 0.003 0.010 +/- 0.003 0.019 +/- 0.003 0.015 +/- 0.003 0.020 +/- 0.003 0.019 +/- 0.003 0.017 +/- 0.003 0.016 +/- 0.003 0.023 +/- 0.003 0.019 +/- 0.004 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 327 238 283 282 284 228 264 221 300 278 221 261 252 0.024 +/- 0.003 0.053 +/- 0.005 0.029 +/- 0.004 0.013 +/- 0.003 0.022 +/- 0.003 0.030 +/- 0.004 0.040 +/- 0.004 0.033 +/- 0.005 0.042 +/- 0.004 0.036 +/- 0.004 0.053 +/- 0.005 0.027 +/- 0.004 0.021 +/- 0.003 0.032 +/- 0.012 2nd Quarter Mean +/- s.d.

4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Averaae 0.028 0.030 a Iodine-131 concentrations are < 0.03 pCi/m 3 unless noted otherwise.

6-1

DUANE ARNOLD Table 7. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-15 (On-site, north)

Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mi)

Gross Beta Collected (mi)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 328 286 286 287 286 288 285 282 278 289 291 292 0.036 +/- 0.004 0.050 +/- 0.004 0.033 +/- 0.004 0.030 +/- 0.004 NDb 0.033 +/- 0.004 0.026 +/- 0.003 0.043 +/- 0.004 0.036 +/- 0.004 0.028 +/- 0.004 0.019 +/- 0.003 0.023 +/- 0.004 0.027 +/- 0.003 0.032 +/- 0.009 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 283 282 284 282 282 285 281 277 276 277 277 279 274 0.017 +/- 0.003 0.026 +/- 0.003 0.026 +/- 0.003 0.021 +/- 0.003 0.031 +/- 0.004 0.029 +/- 0.004 0.026 +/- 0.003 0.038 +/- 0.004 0.022 +/- 0.003 0.022 +/- 0.003 0.026 +/- 0.004 0.027 +/- 0.004 0.008 +/- 0.003 0.025 +/- 0.007 1st Quarter Mean +/- s.d.

3rd Quarter Mean +/- s.d.

04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 01-10 288 292 288 243 331 286 286 289 285 281 243 321 283 0.023 0.030 0.024 0.027 0.013 0.011 0.019 0.018 0.012

+/- 0.003

+/- 0.004

+/- 0.003

+/- 0.004

+/- 0.003

+/- 0.003

+/- 0.003

+ 0.003

+ 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 314 232 276 205 278 278 278 234 314 272 237 275 270 0.025 +/- 0.003 0.051 +/- 0.005 0.028 +/- 0.004 0.037 +/- 0.005 0.024 +/- 0.003 0.026 +/- 0.004 0.038 +/- 0.004 0.035 +/- 0.004 0.042 +/- 0.004 0.042 +/- 0.004 0.058 +/- 0.005 0.055 +/- 0.005 0.021 +/- 0.003 0.037 +/- 0.012 0.022 +/- 0.003 0.016 +/- 0.003 0.017 +/- 0.003 0.019 +/- 0.003 0.019 +/- 0.006 2nd Quarter Mean +/- s.d.

4th Quarter Mean +/- s.d.

Cumulative Average 0.028 Previous Annual Average 0.032 a Iodine-131 concentrations are < 0.03 pCi/m 3 unless noted otherwise.

b ND = No data; filter white; result less than detection limit.

c Filter light.

d Low volume due to power outage.

7-1

DUANE ARNOLD Table 8. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-16 (On-site)

Units: pCi/rn 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (ma)

Gross Beta Collected (ma)

Gross Beta Required LLD 0.010 Required LLD 0.010 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 354 289 300 302 298 301 302 299 298 283 281 283 283 0.034 +/- 0.003 0.046 +/- 0.004 0.042 +/- 0.004 0.029 +/- 0.003 0.035 +/- 0.004 0.037 +/- 0.004 0.026 +/- 0.003 0.049 +/- 0.004 0.033 +/- 0.004 0.029 +/- 0.004 0.020 +/- 0.003 0.017 +/- 0.003 0.031 +/- 0.004 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 266 265 267 265 265 266 264 265 265 266 291 292 282 0.012 +/- 0.003 0.016 +/- 0.003 0.020 +/- 0.003 0.019 +/- 0.003 0.026 +/- 0.004 0.027 +/- 0.004 0.027 +/- 0.004 0.041 +/- 0.004 0.023 +/- 0.004 0.022 0.029 0.026 0.023

+/- 0.003

+/- 0.004

+/- 0.003

+/- 0.003 1st Quarter Mean +/- s.d.

0.033 +/- 0.009 3rd Quarter Mean +/- s.d.

0.024 +/- 0.007 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 283 284 280 243 323 276 283 282 284 265 228 302 266 0.028 +/- 0.003 0.031 +/- 0.004 0.023 +/- 0.003 0.023 +/- 0.004 0.018 +/- 0.003 0.010 +/- 0.003 0.016 +/- 0.003 0.018 +/- 0.003 0.023 +/- 0.003 0.016 +/- 0.003 0.015 +/- 0.003 0.006 +/- 0,002 0.017 +/- 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 1 10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 338 245 291 290 292 292 293 249 341 279 230 279 287 0.027 0.047 0.031 0.028

+/- 0.003

+/- 0.005

+/- 0.004

+/- 0.004 0.027 +/- 0.003 0.027 +/- 0.004 0.036 +/- 0.004 0.031 +/- 0.004 0.038 +/- 0.004 0.040 +/- 0.004 0.055 +/- 0.005 0.054 +/- 0.005 0.021 +/- 0.003 2nd Quarter Mean +/- s.d.

0.019 +/- 0.007 4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Average 0.036 +/- 0.011 0.028 0.028

' Iodine-1 31 concentrations are < 0.03 pCi/mr3 unless noted otherwise.

b Filter light. "

8-1

DUANE ARNOLD Table 9. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131a.

Location: D-40 Units: pCi/m 3

Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (m")

Gross Beta Collected (mA)

Gross Beta Required LLD 01-07-10 01-14-10 01-21-10 01-28-10 02-04-10 02-11-10 02-18-10 02-25-10 03-04-10 03-11-10 03-18-10 03-25-10 04-01-10 306 269 269 269 269 299 302 300 298 298 298 300 300 0.010 0.050 +/- 0.004 0.052 +/- 0.005 0.041 +/- 0.004 0.030 +/- 0.004 0.029 +/- 0.004 0.031 +/- 0.004 0.025 +/- 0.003 0.044 +/- 0.004 0.022 +/- 0.003 0.021 +/- 0.003 0.017 +/- 0.003 0.022 +/- 0.003 0.033 +/- 0.004 Required LLD 07-08-10 07-15-10 07-22-10 07-29-10 08-05-10 08-12-10 08-19-10 08-26-10 09-02-10 09-09-10 09-16-10 09-23-10 09-30-10 286 285 287 285 269 286 285 271 271 273 284 287 285 0.010 0.014 +/- 0.003 0.029 +/- 0.004 0.027 +/- 0.003 0.017 +/- 0.003 0.034 +/- 0.004 0.026 +/- 0.003 0.022 +/- 0.003 0.022 +/- 0.003 0.040 +/- 0.004 0.020 +/- 0.003 0.024 +/- 0.003 0.023 +/- 0.003 0.021 +/- 0.003 1st Quarter Mean +/- s.d.

0.032 +/- 0.011 3rd Quarter Mean +/- s.d.

0.025 +/- 0.007 04-08-10 04-15-10 04-22-10 04-28-10 05-06-10 05-13-10 05-20-10 05-27-10 06-03-10 06-10-10 06-16-10 06-24-10 07-01-10 300 300 298 257 345 282 286 285 285 287 246 319 284 0.021 +/- 0.003 0.026 +/- 0.003 0.024 +/- 0.003 0.025 +/- 0.004 0.016 +/- 0.002 0.010 +/- 0.003 0.017 +/- 0.003 0.015 +/- 0.003 0.023 +/- 0.003 0.019 +/- 0.003 0.015 +/- 0.003 0.018 +/- 0.003 0.015 +/- 0.003 10-08-10 10-14-10 10-21-10 10-28-10 11-04-10 11-11-10 11-18-10 11-24-10 12-02-10 12-09-10 12-15-10 12-22-10 12-29-10 330 241 285 285 287 286 287 246 316 275 240 280 271 0.020 +/- 0.003 0.038 +/- 0.005 0.027 +/- 0.004 0.026 +/- 0.003 0.020 +/- 0.003 0.027 +/- 0.004 0.038 +/- 0.004 0.031 +/- 0.004 0.044 +/- 0.004 0.044 +/- 0.004 0.047 +/- 0.005 0.056 +/- 0.005 0.026 +/- 0.003 2nd Quarter Mean +/- s.d.

0.019 +/- 0.005 4th Quarter Mean +/- s.d.

Cumulative Average Previous Annual Averaae 0.034 +/- 0.011 0.027 0.036 lodine-131 concentrations are < 0.03 pCi/m3 unless noted otherwise.

9-1

DAEC Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/m6 Location D-3 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-1810 DAP-3754 DAP-6153 DAP-7654 Volume (m')

3902 3691 3574 3548 Be-7 0.071 +/- 0.017 0.098 +/- 0.017 0.097 +/- 0.020 0.073 +/- 0.015 Mn-54

< 0.0007

< 0.0009

< 0.0011

< 0.0007 Fe-59

< 0.0016

< 0.0011

< 0.0017

< 0.0025 Co-58

< 0.0005

< 0.0006

< 0.0013

< 0.0007 Co-60

< 0.0007

< 0.0008

< 0.0010

< 0.0004 Zn-65

< 0.0007

< 0.0010

< 0.0015

< 0.0012 Nb-95

< 0.0007

< 0.0012

< 0.0010

< 0.0010 Zr-95

< 0.0008

< 0.0016

< 0.0019

< 0.0016 Ru-103

< 0.0006

< 0.0014

< 0.0015

< 0.0011 Ru-106

< 0.0062

< 0.0082

< 0.0107

< 0.0061 Cs-134

< 0.0007

< 0.0009

< 0.0005

< 0.0006 Cs-137

< 0.0007

< 0.0012

< 0.0007

< 0.0005 Ce-141

< 0.0014

< 0.0016

< 0.0025

< 0.0016 Ce-144

< 0.0025

< 0.0047

< 0.0046

< 0.0038 Location D-5 Lab Code DAP-1811 DAP-3755 DAP-6154 DAP-7655 Volume (m")

3686 3523 3785 3692 Be-7 0.087 +/- 0.016 0.085 +/- 0.015 0.085 +/- 0.016 0.065 +/- 0.019 Mn-54

< 0.0008

< 0.0009

< 0.0005

< 0.0007 Fe-59

< 0.0017

< 0.0010

< 0.0015

< 0.0014 Co-58

< 0.0006

< 0.0007

< 0.0006

< 0.0005 Co-60

< 0.0007

< 0.0004

< 0.0009

< 0.0004 Zn-65

< 0.0006

< 0.0015

< 0.0007

< 0.0007 Nb-95

< 0.0007

< 0.0008

< 0.0009

< 0.0009 Zr-95

< 0.0011

< 0.0015

< 0.0015

< 0.0016 Ru-103

< 0.0008

< 0.0012

< 0.0007

< 0.0015 Ru-106

< 0.0043

< 0.0058

< 0.0065

< 0.0061 Cs-134

< 0.0004

< 0.0009

< 0.0008

< 0.0004 Cs-137

< 0.0004

< 0.0010

< 0.0006

< 0.0008 Ce-141

< 0.0013

< 0.0015

< 0.0019

< 0.0014 Ce-144

< 0.0051

< 0.0040

< 0.0025

< 0.0047 Location D-6 Lab Code DAP-1812 DAP-3756 DAP-6155 DAP-7656 Volume (m')

3808 3333 2226 3720 Be-7 0.084 +/- 0.014 0.099 +/- 0.018 0,086 +/- 0.024 0.080 +/- 0.018 Mn-54

< 0.0009

< 0.0010

< 0.0011

< 0.0008 Fe-59

< 0.0016

< 0.0020

< 0.0023

< 0.0012 Co-58

< 0.0007

< 0.0009

< 0.0010

< 0.0007 Co-60

< 0.0007

< 0.0008

< 0.0012

< 0.0004 Zn-65

< 0.0006

< 0.0015

< 0.0015

< 0.0007 Nb-95

< 0.0011

< 0.0006

< 0.0015

< 0.0009 Zr-95

< 0.0019

< 0.0011

< 0.0019

< 0.0015 Ru-103

< 0.0011

< 0.0013

< 0.0018

< 0.0009 Ru-106

< 0.0056

< 0.0065

< 0.0089

< 0.0054 Cs-134

< 0.0008

< 0.0006

< 0.0011

< 0.0006 Cs-137

< 0.0007

< 0.0005

< 0.0010

< 0.0005 Ce-141

< 0.0009

< 0.0011

< 0.0024

< 0.0020 Ce-144

< 0.0036

< 0.0036

< 0.0060

< 0.0037 10-1

DAEC Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/m" Location D-7 Quarter Lab Code Volume (m')

Be-7 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 1st Quarter DAP-1813 3648 2nd Quarter DAP-3757 3375 0.074 +/- 0.014

< 0.0007

< 0.0019

< 0.0008

< 0.0008

< 0.0007

< 0.0008

< 0.0011

< 0.0007

< 0.0075

< 0.0005

< 0.0006

< 0.0015

< 0.0040 0.108 +/- 0.016

< 0.0004

< 0.0015

< 0.0006

< 0.0005

< 0.0009

< 0.0009

< 0.0013

< 0.0010

< 0.0036

< 0.0006

< 0.0006

< 0.0010

< 0.0029 3rd Quarter DAP-6156 3509 0.103 +/- 0.020

< 0.0010

< 0.0012

< 0.0010

< 0.0008

< 0.0008

< 0.0009

< 0.0025

< 0.0010

< 0.0054

< 0.0004

< 0.0006

< 0.0028

< 0.0032 4th Quarter DAP-7657 3329 0.086 +/- 0.019

< 0.0008

< 0.0019

< 0.0006

< 0.0005

< 0.0008

< 0.0009

< 0.0021

< 0.0009

< 0.0069

< 0.0008

< 0.0005

< 0.0018

< 0.0062 Location D-11 Lab Code DAP-1814 DAP-3758 DAP-6157 DAP-7658 Volume (m')

3856 3810 3713 3599 Be-7 0.073 t 0.012 0.090 +/- 0.016 0.079 +/- 0.017 0.069 +/- 0.015 Mn-54

< 0.0008

< 0.0007

< 0.0006

< 0.0008 Fe-59

< 0.0016

< 0.0015

< 0.0018

< 0.0012 Co-58

< 0.0005

< 0.0009

< 0.0006

< 0.0007 Co-60

< 0.0007

< 0.0006

< 0.0008

< 0.0004 Zn-65

< 0.0020

< 0.0008

< 0.0008

< 0.0007 Nb-95

< 0.0006

< 0.0009

< 0.0011

< 0.0010 Zr-95

< 0.0017

< 0.0016

< 0.0014

< 0.0013 Ru-103

< 0.0008

< 0.0012

< 0.0007

< 0.0009 Ru-106

< 0.0051

< 0.0065

< 0.0061

< 0.0053 Cs-134

< 0.0005

< 0.0009

< 0.0005

< 0.0004 Cs-137

< 0.0005

< 0.0010

< 0.0007

< 0.0005 Ce-141

< 0.0015

< 0.0015

< 0.0016

< 0.0019 Ce-144

< 0.0048

< 0.0043

< 0.0044

< 0.0031 Location D-13 Lab Code DAP-1815 DAP-3759 DAP-6158 DAP-7660 Volume (M3) 3618 3979 3761 3437 Be-7 0.081 +/- 0.013 0.082 +/- 0.017 0.084 +/- 0.017 0.073 +/- 0.017 Mn-54

< 0.0007

< 0.0008

< 0.0006

< 0.0009 Fe-59

< 0.0021

< 0.0013

< 0.0017

< 0.0013 Co-58

< 0.0007

< 0.0009

< 0.0008

< 0.0006 Co-60

< 0.0008

< 0.0007

< 0.0008

< 0.0004 Zn-65

< 0.0006

< 0.0014

< 0.0007

< 0.0008 Nb-95

< 0.0006

< 0.0008

< 0.0010

< 0.0009 Zr-95

< 0.0013

< 0.0012

< 0.0017

< 0.0008 Ru-103

< 0.0012

< 0.0011

< 0.0004

< 0.0013 Ru-106

< 0.0051

< 0.0076

< 0.0072

< 0.0085 Cs-1 34

< 0.0007

< 0.0008

< 0.0008

< 0.0007 Cs-137

< 0.0007

< 0.0010

< 0.0008

< 0.0006 Ce-141

< 0.0014

< 0.0012

< 0.0011

< 0.0011 Ce-144

< 0.0037

< 0.0042

< 0.0047

< 0.0054 10-2

DAEC Table 10.

Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/ms Location D-15 Quarter 1st Quarter Lab Code Volume (ms)

Be-7 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-1 03 Ru-1 06 Cs-134 Cs-i 37 Ce-141 Ce-144 DAP-1816 3476 0.075 +/- 0.012

< 0.0008

< 0.0018

< 0.0005

< 0.0007

< 0.0007

< 0.0007

< 0.0008

< 0.0009

< 0.0057

< 0.0008

< 0.0006

< 0.0012

< 0.0043 2nd Quarter DAP-3760 3715 0.082 +/- 0.013

< 0.0006

< 0.0016

< 0.0010

< 0.0005

< 0.0006

< 0.0011

< 0.0016

< 0.0008

< 0.0066

< 0.0010

< 0.0004

< 0.0017

< 0.0036 3rd Quarter DAP-6159 3639 0.078 +/- 0.018

< 0.0007

< 0.0016

< 0.0006

< 0.0008

< 0.0007

< 0.0011

< 0.0018

< 0.0009

< 0.0082

< 0.0005

< 0.0006

< 0.0009

< 0.0041 4th Quarter DAP-7661 3465 0.075 +/- 0.016

< 0.0009

< 0.0019

< 0.0007

< 0.0004

< 0.0008

< 0.0013

< 0.0008

< 0.0013

< 0.0070

< 0.0006

< 0.0009

< 0.0010

< 0.0027 Location D-16 Lab Code Volume (m')

Be-7 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-1 34 Cs-137 Ce-141 Ce-144 DAP-1817 3873 DAP-3761 3598 DAP-6160 3520 DAP-7662 3706 0.087 +/- 0.014

< 0.0007

< 0.0018

< 0.0006

< 0.0007

< 0.0006

< 0.0006

< 0.0010

< 0.0009

< 0.0065

< 0.0005

< 0.0004

< 0.0015

< 0.0030 0.076 +/- 0.013

< 0.0005

< 0.0011

< 0.0006

< 0.0003

< 0.0011

< 0.0008

< 0.0017

< 0.0011

< 0.0066

< 0.0006

< 0.0006

< 0.0008

< 0.0035 0.078 + 0.015 0.0005 0.0016 0.0006 0.0010 0.0011 0.0006 0.0022 0.0009 0.0081 0.0004 0.0007 0.0010 0.0026 0.073 +/- 0.018 0.0010 0.0012 0.0006 0.0004 0.0007 0.0010 0.0007 0.0008 0.0054 0.0008 0.0004 0.0019 0.0048 Location D-40 Lab Code Volume (ms)

Be-7 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 DAP-1818 3776 0.073 +/- 0.014

< 0.0007

< 0.0016

< 0.0007

< 0.0009

  • 0.0006

< 0.0006

< 0.0008

< 0.0010

< 0.0056

< 0.0008

< 0.0006

< 0.0012

< 0.0044 DAP-3762 3777 0.099 +/- 0.016 0.0005 0.0029 0.0006 0.0004 0.0011 0.0011 0.0015 0.0013 0.0060 0.0007 0.0009 0.0023 0.0052 DAP-6161 3655 0.073 +/- 0.016

< 0.0005

< 0.0016

< 0.0007

< 0.0008

< 0.0007

< 0.0010

< 0.0012

< 0.0006

< 0.0067

< 0.0010

< 0.0006

< 0.0018

< 0.0052 DAP-7663 3628 0.056 + 0.018 0.0008 0.0016 0.0006 0.0004 0.0007 0.0008 0.0020 0.0013 0.0053 0.0007 0.0006 0.0022 0.0022 10-3

DUANE ARNOLD Table 11. Ambient gamma radiation as measured by thermoluminescent dosimeters (TLD).

Quarterly collection.

Units: mR/91 days Controls 1st Qtr.

D-1 D-2 D-3 D-5 D-6 D-7 D-8 D-10 D-11 D-13 17.1 +/-2.0 15.0 + 1.3 16.3 +/- 1.0 17.2 +/- 1.2 17.1 +/-1.1 14.1 +/-1.3 18.4 +/- 1.2 16.7 +/- 1.0 13.7 +/- 1.0 13.5 +/- 1.1 15.9 +/- 1.7 2nd Qtr.

17.3 +/- 1.1 15.4 +/- 1.6 18.9 +/- 0.9 22.1 +/- 0.9 24.0 +/- 0.8 22.4 +/- 1.4 26.8 +/- 1.4 18.6 +/- 0.9 19.1 +/- 2.2 20.3 +/- 2.1 20.5 +/- 3.4 3rd Qtr.

16.7 +/-1.1 17.0 +/- 1.0 16.7 +/-1.5 17.8 +/- 1.2 16.8 +/- 1.1 17.3 +/- 1.1 19.7 +/- 0.9 19.4 +/- 1.0 15.3 +/- 0.8 16.6 +/- 1.1 17.3 +/- 1.3 4th Qtr.

15.5 +/- 1.6 14.1 +/- 1.0 15.5 +/- 0.6 19.8 +/- 0.8 18.5 +/-0.6 18.2 +/- 1.0 21.0 +/- 1.1 16.2 +/- 1.0 16.4 +/- 1.9 17.3 +/- 1.1 17.3 +/- 2.1 Mean +/- s.d.

Within 0.5 mi. of Stack D-15 D-16 D-17 D-18 D-19 D-20 D-21 D-22 D-23 D-28 D-29 D-30 D-31 D-32 15.6 +/- 1.3 17.3 +/- 1.2 15.9 +/- 1.6 15.6 +/- 1.7 14.6 +/- 1.5 17.7 +/- 1.3 19.1 +/- 1.8 18.5 +/- 1.1 16.3 +/- 1.1 18.1 +/- 1.5 20.0 +/- 1.1 18.2 +/- 1.3 18.0 +/- 1.3 21.0 +/- 1.0 17.7 +/- 1.9 20.2 +/- 0.8 21.8 +/-1.6 20.5 +1.2 17.9 +/- 1.0 17.0 +/- 1.2 23.4 +/- 1.5 21.9 +/- 1.0 23.3 +/- 1.4 21.4 +/- 1.7 28.9 +/- 1.5 29.0 +/- 1.3 27.3 +/- 2.2 30.4 +/- 1.8 26.9 +/- 1.4 24.0 +/- 4.5 16.9 +/- 1.4 18.6 +/- 1.1 18.9 +/- 1.2 16.6 +/- 1.2 15.3 +/- 1.3 17.9 +/- 1.0 19.2 +/- 1.3 18.3 +/- 1.1 16.7 +/- 1.1 19.0 +/- 1.2 21.1 +/- 1.0 19.8 +/- 1.3 19.9 +/- 1.3 21.7 +/- 0.9 18.7 +/- 1.9 16.8 +/- 0.6 18.7 +/- 0.9 16.9 +/- 1.7 14.8 +/- 0.9 13.5 +/- 0.7 17.1 +/- 0.9 15.5 +/- 0.9 17.1 +/- 0.8 15.3 +/- 0.9 22.6 +/- 2.2 22.5 +/- 1.3 21.5 +/- 1.6 22.9 +/- 1.1 21.1 +/- 0.8 18.4 +/- 3.5 Mean +/- s.d.

11-1

DUANE ARNOLD Table 11. Ambient gamma radiation as measured by thermoluminescent dosimeters (TLD).

Quarterly collection.

Units: mR/91 days Within 1.0 mi. of Stack 1st Qtr.

2nd Qtr.

3rd Qtr.

D-43 D-44 D-45 D-46 D-47 D-48 D-82 D-83 D-84 D-85 D-86 D-91 16.5 + 1.1 21.0 + 1.1 17.5 + 1.0 20.1 +/-1.6 19.2 + 1.2 20.9 +/- 1.1 17.1 +/- 1.0 18.1 +/- 1.1 17.9 +/- 1.3 18.6 +/- 1.8 20.1 +/- 1.6 17.9 +/- 1.4 18.7 +/- 1.5 20.9 +/- 1.8 27.1 +/- 1.0 20.0 +/- 1.8 26.5 +/- 1.4 24.6 +/- 2.1 27.1 +/- 1.7 14.8 +/- 1.1 21.6 +/- 1.0 20.7 +/- 1.8 21.1 +/- 1.2 22.7 +/- 1.6 23.8 +/- 1.5 22.6 +/- 3.6 16.8 +/- 1.0 20.3 +/- 1.0 17.1 -0.9 20.6 +/- 1.2 19.8 1.1 20.6 0

0.9 15.7 +/-0.9 17.5 +/- 1.0 16.7 +/- 1.4 17.1 +/-0.8 19.7 +/- 1.7 17.7 +/- 1.3 18.3 +/- 1.8 4th Qtr.

17.5 +/- 1.2 20.7 +/- 0.6 16.8 +/- 0.9 21.4 +/- 1.0 20.1 +/- 0.9 20.5 +/- 1.1 12.2 +/- 0.8 16.3 +/- 0.7 15.8 +/- 1.0 15.6 +/- 0.9 17.2 +/- 1.1 17.8 +/- 0.9 17.7 +/- 2.6 Mean +/- s.d.

Within 3.0 mi. of Stack D-33 D-34 D-35 D-36 D-37 D-38 D-39 D-40 D-41 D-42 Mean +/- s.d.

14.9 1 1.2 13.6 +/- 1.2 14.5 + 1.1 16.2 +/- 1.0 17.9 + 1.6 16.6 + 1.2 17.0 +/- 1.3 14.8 + 1.2 14.6 +/- 1.1 15.1 +/-1.0 15.5 + 1.3 19.1 +/- 1.1 17.9 +/- 1.8 18.6 +/- 1.0 20.4 +/- 1.6 26.3 +/- 2.4 21.3 +/- 1.6 21.8 +/- 1.1 20.3 +/- 1.5 19.6 +/- 1.3 20.2 +/- 2.0 20.6 +/- 2.3 15.2 +/- 1.0 14.9 +/-0.9 15.4 +/- 0.9 17.0 +/-0.9 19.6 +/- 1.3 17.7 +/- 1.2 17.5 +/- 1.0 15.6 +/- 1.0 15.5 +/- 1.0 16.0 +/- 1.2 16.4 +/- 1.5 15.9 +/- 0.6 14.8 +/- 1.2 15.0 +/- 0.7 16.4 +/- 0.9 19.7 +/- 2.0 17.4 +/- 1.2 17.7 +/- 0.7 16.8 +/-0.8 16.5 +/-0.9 16.8 +/- 1.3 16.7 +/- 1.4 11-2

DUANE ARNOLD Table 12.

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-108 (C)

Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-05-10 DMI-37

< 0.3 1570 +/- 105

< 2.9

< 3.0

< 14.5

< 1.0 02-02-10 DMI-420

<0.3 1171 +/- 107

<3.4

<4.0

<15.6

<2.0 03-02-10 DMI-830

<0.3 1286 +/- 105

<3.1

<2.8

<11.5

<2.0 04-13-10 DMI-1598

< 0.3 1387 +/- 115

< 3.1

< 3.8

< 17.4

< 1.6 05-04-10 DMI-2202

< 0.3 1644 +/- 122

< 2.4

< 2.8

< 12.1

< 1.5 05-18-10 DMI-2504

<0.3 1692 +/- 116

<3.5

<4.6

<7.7

<2.3 06-02-10 DMI-2866

< 0.3 1568 +/- 120

< 3.1

< 4.5

< 16.2

< 3.1 06-15-10 NDa 06-29-10 DMI-3367

<0.3 1386 +/- 118

<2.3

<4.0

<10.5

<2.9 07-13-10 DMI-3777

<0.3 1495 +/- 117

<2.2

<3.6

<15.9

<1.7 07-27-10 DMI-3989

<0.3 1246 +/- 109

<3.7

<3.5

<11.9

<2.6 08-10-10 DMI-4434

<0.2 1309 +/- 114

<4.3

<4.3

<11.9

<3.3 08-24-10 DMI-4693

< 0.2 1272 +/- 48

< 1.7

< 1.4

< 33.4

< 4.9 09-08-10 DMI-5036

< 0.4 1597 +/- 125

< 3.2

< 4.5

< 17.4

< 3.3 09-21-10 DMI-5281

< 0.5 1362 +/- 108

< 3.3

< 2.2

< 13.6

< 2.3 10-05-10 DMI-5577

< 0.2 1352 +/- 109

< 2.8

< 3.8

< 12.9

< 1.9 11-02-10 DMI-6510

< 0.3 1270 +/- 112

< 3.8

< 3.9

< 14.1

< 1.2 12-07-10 DMI-7181

< 0.3 1386 +/- 107

< 3.5

< 3.3

< 13.0

< 1.2 Location D-110 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-05-10 DMI-38

< 0.3 1301 +/- 98

< 3.0

< 2.6

< 9.8

< 2.5 02-02-10 DMI-421

< 0.3 1435 +/- 107

< 2.9

< 3.6

< 12.0

< 3.5 03-02-10 DMI-831

< 0.3 1288 +/- 107

< 3.2

< 3.3

< 10.3

< 3.7 04-13-10 DMI-1599

<0.3 1386 +/- 107

<3.0

<3.8

<16.5

<3.8 05-04-10 DMI-2203

< 0.3 1444 +/- 108

< 3.2

< 3.8

< 13.1

< 2.1 05-18-10 DMI-2505

< 0.3 1348 +/- 101

< 2.8

< 3.6

< 12.1

< 2.9 06-02-10 DMI-2867

< 0.3 1321 +/- 101

< 2.3

< 3.2

< 9.0

< 1.6 06-15-10 NDa 06-29-10 DMI-3368

< 0.3 1377 +/- 118

< 3.1

< 3.7

< 17.0

< 1.3 07-13-10 DMI-3778

< 0.3 1383 +/- 110

< 2.6

< 2.8

< 12.1

<2.4 07-27-10 DMI-3990

< 0.2 1374 +/- 106

< 3.1

< 3.5

< 12.3

< 2.0 08-10-10 DMI-4435

< 0.2 1386 +/- 105

< 3.4

< 3.7

< 10.4

< 3.6 08-24-10 DMI-4694

< 0.3 1320 +/- 118

< 3.0

< 3.4

< 16.4

< 1.9 09-08-10 DMI-5037

< 0.4 1399 +/- 114

< 4.2

< 3.7

< 21.6

< 3.3 09-21-10 DMI-5282

<0.2 1426 +/-111

<3.4

<3.1

< 10.3

<3.2 10-05-10 DMI-5578

<0.4 1386 +/-99

<2.4

<2.3

< 11.1

<2.9 11-02-10 DMI-6511

< 0.4 1441 +/- 121

< 3.5

< 3.5

< 11.5

< 1.3 12-07-10 DMI-7182

<0.4 1377 +/-_108

<3.9

<3.8

< 11.5

<2.0 a ND = No data; see Table 2.0, Listing of Missed Samples.

12-1

DUANE ARNOLD Table 13.1. Well water samples, analyses for gross beta and tritium.

Collection: Quarterly Units: pCi/L Location D-53 Treated Municipal Water Collection Date 03-22-10 06-25-10 09-15-10 11-10-10 Lab Code DWW-1161 DWW-3334 DWW-5233 DWW-6703 Gross Beta 1.2 +/- 0.7 1.5 +/- 0.6 1.2 +/- 0.6 1.2 +/- 0.4 H-3

< 152

< 164

< 164

< 162 Location D-54 Inlet to Municipal Water Collection Date

.03-22-10 06-25-10 09-15-10 11-10-10 Lab Code DWW-1 162 DWW-3335 DWW-5234 DWW-6704 Gross Beta

< 1.2 1.0 +/- 0.6 1.4 +/- 0.6 1.5 +/- 0.4 H-3

< 152

< 164

< 164

< 162 Location D-55 On-site Well Collection Date 03-22-10 06-25-10.

09-15-10 11-09-10 Lab Code DWW-1 163 DWVY-3336 DWW-5235 DWW-6705 Gross Beta

< 1.3 1.0 +/- 0.6

< 0.9

< 0.7 H-3

< 152

< 164

< 164

< 162 Location D-57 Bull Farm Collection Date 03-22-10 06-25-10 09-15-10 11-09-10 Lab Code DWW-1 164 DWW-3337 DWW-5236 DWW-6706 Gross Beta

< 1.2

< 0.8

< 0.8

< 0.9 H-3

< 152

< 164

< 164

< 162 Location D-58 Franz Farm Collection Date 03-22-10 06-25-10 09-15-10 11-09-10 Lab Code DWW-1 165 DWW-3338 DWW-5237 DWW-6708 Gross Beta 2.0 +/- 0.8 2.7 +/- 0.6 1.6 +/- 0.6 4.0 +/- 0.6 a H-3

< 152

< 164

< 164

< 162 Location D-72 Van Note Farm Collection Date 03-22-10 06-25-10 09-15-10 11-09-10 Lab Code DWW-1 166 DWW-3339 DWW-5238 DWW-6709 Gross Beta

< 1.3

< 0.8

< 0.9

< 1.4 H-3

< 152

< 164

< 164

< 162 a Gamma isotopic analysis performed if gross beta activity is greater than 3 pCi/L and/or H3 activity exceeds MDA.

Refer to Appendix A, Supplementary Analyses.

13-1

Table 13.2. Ground water, Monitoring wells, analyses for gross beta and tritium a.

Collection: Quarterly Units:

pCiIL Location MW-01A (shallow)

Collection Date 03-23-10 06-28-10 07-20-10 08-17-10 09-24-10 Lab Code DWW-1 183 DWW-3361 DWW-3926 DWW-4619 DWW-5371 Gross Beta 3.1 +/- 1.3 2.0 +/- 0.6 3.1 +/- 0.4 1.7 +/- 0.6 2.9 +/- 0.7 H-3 1817 +/- 151 1053 +/-,126 777 +/- 125 571 +/- 118 661 +/- 111 Collection Date 11-22-10 12-08-10 Lab Code DWW-6934 DWW-7255 Gross Beta 2.8 +/- 0.9

< 1.8 H-3 421 +/- 96 243 +/- 90 Location MW-01B (intermediate)

Collection Date 03-23-10 06-28-10 09-24-10 11-22-10 Lab Code DWW-1184 DWW-3362 DWW-5372 DWW-6935 Gross Beta 2.9 +/- 1.1

< 0.8 1.1 +/- 0.6 1.9 +/- 0.8 H-3

< 144

< 164'

< 154

< 144 Location MW-02A (shallow)

Collection Date 03-30-10 06-09-10 09-22-10 11-30-10 Lab Code DWW-1 347 DWW-3194 DWW-5321 DWW-7054 Gross Beta 3.4 +/- 0.8 1.7 +/- 0.4 1.3 +/- 0.7 1.8 +/- 0.8 H-3

< 143

< 158

< 159

< 139 Location MW-02B (intermediate)

Collection Date 03-30-10 06-09-10 09-22-10 11-30-10 Lab Code DWW-1348 DWW-3196 DWW-5322 DWW-7055 Gross Beta 1.5 +/- 0.6 1.0 +/- 0.4 1.0 +/- 0.6

< 1.2 H-3

< 143

< 158

< 159

< 139 Location MW-03A (shallow)

Collection Date 03-23-10 06-04-10 09-22-10 11-30-10 Lab Code DWW-1185 DWW-2945 DWW-5323 DWW-7056 Gross Beta 3.2 +/- 1.3 3.1 +/- 0.4 1.0 +/- 0.6 2.1 +/- 0.8 H-3

< 144

< 140

< 159

< 139 Location MW-03B (intermediate)

Collection Date 03-23-10 06-04-10 09-22-10 11-30-10 Lab Code DWW-1 186 DWW-2946 DWW-5324 DWW-7058 Gross Beta 2.6 +/- 1.1 1.5 +/- 0.3 2.1 +/- 0.6 2.9 +/- 1.6 H-3

< 144

< 140

< 159

< 139 aTritium recounted vith a result of 1721+/-143 pCi/L.

13-2

Table 13.2. Ground water, Monitoring wells, analyses for gross beta and tritium.a Collection: Quarterly Units: pCi/L Location MW-04A (shallow)

Collection Date 03-23-10 06-28-10 08-30-10 09-24-10 11-22-10 Lab Code DWW-1187 DWW-3363 DWW-4789 DWW-5373 DWW-6936 Gross Beta 2.9 +/- 1.2 1.2 +/- 0.6 3.6 +/- 1.6 1.1 +/- 0.6

< 1.3 H-3

< 144 222 +/- 92 169 +/- 85

< 154

< 144 Collection Date 12-08-10 Lab Code DWW-7257 Gross Beta 1.9 +/- 1.0 H-3

< 150 Location MW-04B (intermediate)

Collection Date 03-23-10 06-28-10 09-24-10 11-22-10 Lab Code DWW-1 188 DWW-3364 DWW-5374 DWW-6937 Gross Beta 2.4 +/- 1.2 0.9 +/- 0.6 1.4 +/- 0.6

< 1.3 H-3

< 144

< 164

< 154

< 144 Location MW-05A (shallow)

Collection Date 03-23-10 06-04-10 09-22-10 11-30-10 Lab Code DWW-1 189 DWW-2948 DWW-5325 DWW-7059 Gross Beta 3.6 +/- 1.2 2.1 +/- 0.4 2.0 +/- 0.7 1.6 +/- 0.8 H-3

< 163

< 140

< 159

< 139 Location MW-05B (intermediate)

Collection Date 03-23-10 06-04-10 09-22-10 11-30-10 Lab Code DWW-1190 DWW-2949 DWW-5326 DWW-7060 Gross Beta 1.9 +/- 1.2 1.1 +/- 0.3

< 0.9

< 1.3 H-3

< 163

< 140

< 159

< 139 Location MW-06A (shallow)

Collection Date 03-30-10 06-04-10 09-24-10 11-30-10 Lab Code DWW-1 349 DWW-2950 DWW-5375 DWW-7061 Gross Beta 6.4 +/- 0.7 6.1 +/- 0.5 4.4 +/- 0.7 3.1 +/- 1.5 H-3

< 143

< 140

< 154

< 139 Location MW-06B (intermediate)

Collection Date 03-30-10 06-04-10 09-24-10 11-30-10 Lab Code DWW-1350 DWW-2951 DWW-5376 DWW-7062 Gross Beta 2.2 +/- 0.6 2.1 +/- 0.6 1.1 +/- 0.6 4.6 +/- 1.6 H-3

< 143

< 140

< 154

< 139 13-3

DUANE ARNOLD Table 14. Vegetation (broadleaf), analyses for iodine-131 and other gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Location D-57 D-109 D-108 (C)

Lab Code DVE-3369 DVE-3371 DVE-3370 Date Collected 06-29-10 06-29-10 06-29-10 Sample Type Green-Broadleaf Green-Broadleaf Green-Broadleaf K-40 3.33 +/- 0.37 3.14 +/- 0.34 4.04 +/- 0.43 Mn-54

< 0.014

< 0.014

< 0.015 Fe-59

< 0.029

< 0.027

< 0.032 Co-58

< 0.012

< 0.011

< 0.009 Co-60

< 0.013

< 0.011

< 0.018 Zn-65

< 0.024

< 0.013

< 0.032 Nb-95

< 0.009

< 0.014

< 0.009 Zr-95

< 0.029

< 0.022

< 0.015 Ru-103

< 0.011

< 0.009

< 0.014 Ru-106

< 0.093

< 0.093

< 0.15 1-131

< 0.016

< 0.016

< 0.018 Cs-134

< 0.007

< 0.014

< 0.014 Cs-137

< 0.011

< 0.008

< 0.015 Ce-141

< 0.020

< 0.022

< 0.022 Ce-144

< 0.079

< 0.094

< 0.11 Location D-118 Lab Code DVE-5487 Date Collected 09-30-10 Sample Type Green Leafy K-40 2.60 +/- 0.28 Mn-54

< 0.006 Fe-59

< 0.020 Co-58

< 0.009 Co-60

< 0.009 Zn-65

< 0.014 Nb-95

< 0.010 Zr-95

< 0.017 Ru-103

< 0.009 Ru-106

< 0.094 1-131

< 0.017 Cs-1 34

< 0.010 Cs-1 37

< 0.009 Ce-141

< 0.017 Ce-144

< 0.064 14-1

DUANE ARNOLD Table 15. Vegetation (hay and grain), analyses for gamma-emitting isotopes.

Collection:

Annually Units:

pCi/g wet Location D-1 6 D-57 D-57 D-58 D-72 Lab Code DVE-3475 DVE-3476 DVE-5900 DVE-5901 DVE-5902 Date Collected 06-30-10 06-30-10 10-13-10 10-13-10 10-13-10 Sample Type Wheat Hay Corn Beans Corn K-40 3.54 +/- 0.32 17.96 +/- 0.77 2.58 +/- 0.27 12.79 +/- 0.55 2.68 +/- 0.27 Mn-54

< 0.008

< 0.023

< 0.010

< 0.009

< 0.009 Fe-59

< 0.019

< 0.052

< 0.012

< 0.019

< 0.015 Co-58

< 0.012

< 0.025

< 0.006

< 0.007

< 0.006 Co-60

< 0.010

< 0.022

< 0.007

< 0.009

< 0.007 Zn-65

< 0.018

< 0.034

< 0.006

< 0.026

< 0.006 Nb-95

< 0.007

< 0.024

< 0.007

< 0.007

< 0.009 Zr-95

< 0.019

< 0.058

< 0.015

< 0.019

< 0.016 Ru-103

< 0.011

< 0.018

< 0.007

< 0.010

< 0.008 Ru-106

< 0.078

< 0.175

< 0.075

< 0.104

< 0.058 Cs-134

< 0.010

< 0.018

< 0.005

< 0.007

< 0.007 Cs-137

< 0.010

< 0.022

< 0.006

< 0.010

< 0.009 Ce-141

< 0.014

< 0.039

< 0.014

< 0.017

< 0.014 Ce-144

< 0.051

< 0.153

< 0.029

< 0.053

< 0.047 Location D-96 D-109 D-108 (C)

D-108 (C)

Lab Code DVE-5903 DVE-5904 DVE-3477 DVE-5579 Date Collected 10-13-10 10-13-10 06-30-10 10-05-10 Sample Type Corn Corn Hay Corn Silage K-40 3.42 +/- 0.30 2.90 +/- 0.27 10.22 +/- 0.66 4.83 +/- 0.40 Mn-54

< 0.008

< 0.007

< 0.014

< 0.017 Fe-59

< 0.013

< 0.017

< 0.032

< 0.025 Co-58

< 0.008

< 0.008

< 0.014

< 0.008 Co-60

< 0.009

< 0.008

< 0.015

< 0.014 Zn-65

< 0.025

< 0.010

< 0.053

< 0.035 Nb-95

< 0.007

< 0.007

< 0.016

< 0.013 Zr-95

< 0.013

< 0.009

< 0.023

< 0.024 Ru-103

< 0.004

< 0.006

< 0.015

< 0.013 Ru-106

< 0.084

< 0.069

< 0.111

< 0.121 Cs-134

< 0.010

< 0.008

< 0.017

< 0.014 Cs-137

< 0.010

< 0.007

< 0.018

< 0.013 Ce-141

< 0.014

< 0.017

< 0.021

< 0.024 Ce-144

< 0.070

< 0.031

< 0.136

< 0.103 15-1

DUANE ARNOLD Table 16. Surface water samples, analyses for iodine-1 31, tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCViL Location:

D-49 Lab Code Date Collected H-3 1-131 (Chemistry)

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-1 40 Lab Code Date Collected DSW-336 DSW-657 DSW-1136 DSW-2017 DSW-2633 DSW-3157 01-26-10

< 160

< 0.5

< 2.2

<4.2

< 1.9

< 1.3

< 3.5

< 2.6

< 4.8

< 5.1

< 2.6

< 2.5

< 11.9

< 3.7 02-22-10

< 145

< 0.3

< 4.4

< 3.6

< 2.9

< 1.6

< 4.6

< 3.7

<7.1

< 6.4

< 3.0

< 4.2

< 19.7

< 2.7 03-19-10 1 152

<*0.3

< 2.8

< 3.4

< 2.3

< 2.2

< 3.3

< 1.8

< 4.8

<4.5

< 2.8

< 2.9

< 10.0

< 2.0 04-21-10

  • 175

< 0.4

<2.5

< 4.0

< 3.5

< 2.7

< 5.0

< 2.1

< 3.5

< 4.2

< 2.9

< 4.3

< 10.2

< 1.8 05-24-10

  • 170

< 0.3

< 2.5

< 3.8

< 1.9

< 2.8

  • 5.6

< 3.3

< 5.5

< 4.4

< 2.2

< 2.3

< 10.6

< 1.4 06-18-10

< 152

< 0.3

< 2.8

< 7.5

< 1.9

< 2.5

< 2.0

< 2.7

< 3.8

< 3.3

<2.7

< 2.4

< 12.0

< 2.5 DSW-3927 DSW-4612 DSW-5146 DSW-6200 07-20-10 08-18-10 09-14-10 10-20-10 DSW-6710 DSW-7258 11-09-10 12-08-10 H-3 I-131(Chemistry)

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

  • 158
  • 0.3
  • 2.8

< 4.8

  • 2.8
  • 3.2
  • 3.0

< 2.8

<3.1

<4.0

< 3.0

<2.6

  • 6.7
  • 1.4

< 156

< 0.2

< 2.6

< 4.8

< 2.4

< 2.9

< 3.7

< 2.4

< 4.2

< 7.2

<2.1

< 2.7

< 11.4

< 2.5

< 154

< 0.8

< 3.5

< 3.5

< 3.0

< 3.4

< 7.9

< 3.9

<4.7

<5.1

<4.1

< 3.3

< 16.7

< 2.6

< 165

< 0.4

< 2.4

< 5.8

< 2.4

< 3.2

< 3.4

< 2.9

< 4.0

< 3.7

< 3.3

< 2.8

< 16.2

  • 2.7
  • 167

< 0.4

< 2.8

<3.5

< 2.4

< 2.7

< 4.2

< 2.8

< 3.1

< 3.5

< 2.9

< 2.6

< 9.6

< 2.5

< 150

< 0.3

< 2.5

< 3.9

< 2.4

< 1.5

< 4.2

< 4.3

< 3.3

< 3.8

< 2.5

< 3.8

< 12.9

< 2.8 16-1

DUANE ARNOLD Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-50 Lab Code Date Collected DSW-337 01-26-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Lab Code Date Collected

< 160

< 2.5

< 4.9

< 3.2

  • 2.7

< 3.3

< 3.0

< 4.1

< 8.0

< 2.4

< 2.0

< 17.8

< 3.3 DSW-658 02-22-10

< 145

< 1.9

<4.5

< 1.3

< 2.3

< 4.1

< 1.9

< 3.6

< 2.8

< 2.5

< 3.2

< 10.7

< 2.8

< 152

< 3.0

< 6.7

<2.9

< 1.5

< 4.4

< 3.1

< 5.9

< 6.3

< 2.7

< 3.5

< 18.3

< 2.9

< 175

< 2.9

< 5.8

< 3.5

<2.1

  • 3.6

< 4.2

<5.3

< 7.4

< 3.2

< 4.0

< 20.9

< 2.7

< 170

<3.1

< 3.9

< 3.4

< 2.3

< 4.5

<2.1

< 4.8

< 4.2

  • 2.9

< 3.6

< 9.0

< 2.4

  • 152

< 3.5

< 6.1

< 3.2

< 2.9

< 5.2

< 4.8

< 5.2

< 6.1

< 2.4

< 3.8

< 20.4

< 2.5 NDa 12-08-10 DSW-1137 DSW-2018 DSW-2634 DSW-3158 03-19-10 04-21-10 05-24-10 06-18-10 DSW-3938 DSW-4613 DSW-5147 DSW-6201 DSW-6711 07-20-10 08-18-10 09-14-10 10-20-10 11-09-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-1 37 Ba-140 La-140

< 158

< 3.1

< 5.6

< 2.8

< 2.2

< 5.6

< 3.4

< 6.6

< 7.1

< 3.5

<4.1

< 19.8

< 2.5

< 156

< 3.1

< 4.7

< 3.0

< 2.8

< 4.9

< 3.8

< 4.9

< 4.6

< 3.7

< 2.0

< 12.8

< 2.6

  • 154

< 2.5

< 3.3

< 2.7

< 2.6

< 4.2

< 3.0

< 3.8

< 4.9

< 2.8

< 3.3

< 13.5

< 2.8

< 165

< 2.8

< 4.9

<2.3

< 2.4

< 5.2

<3.1

< 4.6

< 5.9

< 2.8

< 3.3

< 14.0

< 2.5

< 167

< 3.1

< 5.2

< 3.4

<3.1

<.4.4

<4.3

< 4.8

< 8.1

<3.1

< 3.9

< 24.9

< 4.2 a "ND" = No data; see Table 2.0, Listing of Missed Samples.

16-2

DUANE ARNOLD Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-51 Lab Code Date Collected DSW-338 DSW-659 DSW-1138 DSW-2019 DSW-2635 DSW-3159 01-26-10 02-22-10 03-19-10 04-21-10 05-24-10 06-18-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-1 37 Ba-140 La-140

< 160

< 2.6

  • 3.8

< 2.8

< 0.8

< 2.6

< 2.3

< 3.3

<4.2

<2.7

  • 2.2

< 11.4

< 2.4

< 145

< 3.1

<4.3

< 2.6

< 2.9

< 2.6

< 2.9

< 3.4

< 4.8

< 3.0

< 2.4

  • 7.6

< 4.0

< 152

< 3.0

< 3.3

< 2.8

< 1.4

< 3.4

< 2.1

< 5.3

< 5.4

< 3.0

< 3.8

< 13.4

< 2.4

< 175

< 2.7

< 3.0

<2.1

< 2.8

< 2.9

< 2.7

< 1.9

< 4.8

< 2.4

<3.1

< 13.9

< 1.9

< 170

< 1.7

< 2.4

< 3.2

< 2.2

< 3.9

< 2.1

< 4.6

< 5.4

< 3.3

< 2.0

< 10.3

< 2.6

< 152

< 2.0

< 4.2

< 2.0

< 3.6

< 7.7

< 4.7

< 5.2

< 5.2

< 3.0

< 3.3

< 19.4

< 4.5 Lab Code Date Collected DSW-3939 DSW-4614 07-20-10 08-18-10 DSW-5148 DSW-6202 09-14-10 10-20-10 DSW-6712 DSW-7259 11-09-10 12-08-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-137 Ba-140 La-140

< 179

< 2.0

< 5.7

<3.1

< 2.8

<4.1

< 3.9

  • 6.5
  • 6.2

< 3.8

< 2.7

< 16.3

  • 1.9

< 156

< 2.8

< 6.5

< 3.4

< 3.7

< 4.0

< 3.9

< 6.4

< 6.7

< 3.1

< 4.2

< 19.4

< 3.6

< 154

< 2.6

< 4.0

< 3.4

< 3.2

< 5.3

< 3.6

< 6.1

< 8.6

< 3.9

< 2.8

< 20.7

< 3.2

< 165

< 2.4

< 3.3

< 2.2

< 3.0

<5.1

< 3.4

< 3.8

< 5.9

< 3.7

< 2.2

< 14.2

< 2.4

< 167

< 2.5

< 2.8

< 3.4

<3.1

< 3.2

< 2.0

< 3.4

< 7.7

< 2.5

< 3.4

< 17.6

< 2.7

< 150

< 2.6

< 5.3

< 4.2

< 4.0

< 3.9

< 4.2

< 7.4

< 7.2

<3.2

< 3.7

< 22.5

< 2.6 16-3

DUANE ARNOLD Table 16. Surface water samples, analyses for iodine-1 31, tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-61 Lab Code Date Collected DSW-339 DSW-660 DSW-1139 DSW-2020 DSW-2636 DSW-3160 01-26-10 02-22-10 03-19-10 04-21-10 05-24-10 06-18-10 H-3 1-131 (Chemistry)

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-1 37 Ba-140 La-140

< 160

<0.3

< 1.6

< 7.0

< 1.5

< 1.9

<3.1

< 2.5

< 3.4

< 3.9

< 2.1

< 2.1

< 13.7

< 2.9

< 145

< 0.5

< 2.4

< 6.8

< 3.1

< 3.3

< 4.6

< 3.7

<4.2

< 5.5

< 2.9

< 2.6

<9.2

< 1.9

< 152

< 0.3

< 2.1

< 2.2

< 1.2

< 1.6

< 4.4

< 2.0

< 4.5

< 2.8

< 2.1

< 2.3

< 12.2

< 3.5

< 175

< 0.3

< 3.8

< 4.8

< 3.2

< 3.9

<4.1

< 4.0

< 6.9

< 6.9

< 4.3

< 2.9

< 15.7

< 2.8

< 170

< 0.3

< 1.6

< 6.2

< 1.5

< 2.2

<2.5

<3.1

< 5.1

< 4.2

< 2.1

< 2.9

< 7.9

< 1.8

< 152

< 0.3

< 2.4

< 4.0

<2.7

< 2.5

< 1.7

< 2.2

< 5.4

< 3.5

< 2.2

< 2.6

< 10.3

< 2.6 Lab Code Date Collected DSW-3940 DSW-4615 DSW-5149 DSW-6203 DSW-6713 DSW-7260 07-20-10 08-18-10 09-14-10 10-20-10 11-09-10 12-08-10 H-3 1-131 (Chemistry)

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 158

< 0.4

< 2.9

< 3.5

< 4.2

< 1.0

<5.1

< 3.5

< 7.3

< 8.5

< 3.6

< 4.3

< 18.6

< 2.8

< 156

< 0.2

< 4.3

< 7.9

< 3.1

< 3.7

< 3.9

< 3.0

< 7.4

< 5.3

< 3.3

< 3.3

< 13.4

< 3.3

< 154

<0.3

< 2.5

<4.9

<3.1

< 3.9

< 4.3

< 4.6

< 4.3

< 5.8

< 3.6

< 2.7

< 12.1

< 2.8

< 165

< 0.4

< 2.4

< 3.8

< 2.2

< 2.1

< 4.6

< 2.8

< 4.0

< 5.0

< 2.2

< 3.1

< 13.3

< 2.9

< 167

< 0.4

< 3.8

< 5.6

< 1.9

< 3.2

< 7.5

< 3.7

< 6.6

< 5.7

< 3.1

< 2.9

< 15.2

< 2.1

< 150

<0.3

<2.8

< 7.4

<4.8

< 4.3

< 3.3

< 4.5

< 10.4

< 9.2

< 5,0

< 5.8

< 21.1

< 4.0 16-4

DUANE ARNOLD Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCi/L Location:

D-99 Lab Code Date Collected DSW-340 01-26-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Lab Code Date Collected

< 160

  • 1.8

< 2.9

< 2.4

< 2.2

< 3.2

< 2.4

< 4.7

< 5.4

< 2.4

< 2.6

< 18.9

  • 3.2 DSW-661 02-22-10

< 145

< 1.4

< 4.0

< 1.4

< 1.1

< 3.4

< 1.8

< 5.1

< 5.3

< 3.1

  • 2.7

< 15.2

< 3.2

< 152

< 3.3

  • 3.8
  • 2.2

< 2.1

  • 2.6

<2.1

< 5.3

< 4.6

< 2.4

< 2.7

< 19.7

< 2.7

< 175

< 2.9

< 2.4

< 2.3

< 2.3

< 2.4

< 3.4

  • 5.8

< 5.2

< 2.9

< 3.0

< 12.0

< 2.5

< 170

< 3.2

  • 6.5

<3.1

< 2.3

< 2.5

< 3.0

  • 5.8

< 6.2

< 2.8

< 3.6

< 13.2

< 1.7

< 152

< 2.5

< 4.7

  • 1.8

< 1.5

< 2.3

< 2.9

< 5.4

<4.1

< 2.8

< 2.7

< 10.8

< 2.4 NDa 12-08-10 DSW-1140 DSW-2021 DSW-2637 DSW-3161 03-19-10 04-21-10 05-24-10 06-18-10 DSW-3928 DSW-4616 DSW-5150 DSW-6204 DSW-6714 07-20-10 08-18-10 09-14-10 10-20-10 11-09-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-137 Ba-140 La-140

< 158

  • 2.1

< 6.0

< 3.0

< 1.9

< 4.3

< 5.3

< 5.5

< 4.6

<4.1

< 2.8

< 21.2

< 3.7

< 156

< 2.2

< 3.9

< 2.7

< 2.8

< 1.7

< 3.0

<6.1

< 3.9

<3.1

<3.1

< 14.6

< 3.7

< 154

< 4.5

< 7.5

< 2.9

< 4.0

< 4.6

< 4.6

<6.1

< 8.4

< 3.7

< 3.5

< 23.3

<4.1

< 165

< 2.9

< 5.1

< 1.9

< 3.0

< 2.6

< 2.0

< 4.9

< 4.0

<3.1

< 2.5

< 14.1

< 3.3

  • 167

<2.5

< 6.7

< 2.7

< 3.0

< 2.8

< 2.4

< 5.0

< 8.9

< 3.4

< 2.7

< 19.2

<2.1 16-5

DUANE ARNOLD Table 16. Surface water samples, analyses for tritium and gamma-emitting isotopes.

Collection:

Monthly Units:

pCifL Location:

D-107 Lab Code Date Collected DSW-342 DSW-662 DSW-1141 DSW-2022 DSW-2638 DSW-3162 01-26-10 02-22-10 03-19-10 04-21-10 05-24-10 06-18-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-1 37 Ba-140 La-140

< 160

< 2.4

< 4.5

< 2.1

< 1.6

< 4.5

< 2.7

< 5.3

< 5.2

< 2.7

< 2.9

< 14.7

< 3.8

< 145

< 3.3

< 5.2

< 3.1

< 5.0

< 5.8

< 5.3

< 5,1

< 6.0

< 4.5

< 3.4

< 23.9

< 5.1

< 152

< 2.7

< 4.3

< 2.0

< 2.1

< 3.3

< 1.7

< 4.6

< 3.5

< 2.3

< 3.5

< 15.2

< 1.7

< 175

< 2.1

< 3.6

< 2.6

< 2.1

< 3.2

< 3.1

  • 6.6

< 6.3

< 2.4

< 3.0

< 11.9

< 2.4

< 170

< 2.9

< 3.8

< 3.0

< 2.7

< 4.0

  • 2.0

< 2.5

< 3.6

< 2.8

< 3.1

< 11.2

< 2.5

< 152

< 2.8

< 5.4

< 3.3

< 3.0

< 2.3

< 3.5

< 5.1

< 3.6

< 2.6

< 3.0

< 9.9

< 2.8 Lab Code Date Collected DSW-3941 DSW-4617 07-20-10 08-18-10 DSW-5151 DSW-6205 DSW-6715 DSW-7261 09-14-10 10-20-10 11-09-10 12-09-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 158

< 3.9

< 4.8

< 2.6

< 4.6

< 10.3

< 4.4

< 7.5

< 5.8

< 3.4

< 4.6

< 22.9

< 3.0

< 156

< 2.7

< 3.9

< 2.4

< 2.0

< 5.6

< 2.7

<4.8

< 5.5

< 1.9

< 2.3

< 8.3

< 2.6

< 154

< 3.0

< 4.3

< 3.0

<2.1

< 3.2

<2.5

< 4.2

<4.3

< 3.0

< 3.2

< 18.5

< 3.6

< 165

< 3.2

< 4.4

< 2.1

< 2.0

<4.3

< 3.2

<6.1

< 6.8

< 2.9

< 3.0

< 18.6

< 2.0

< 167

< 3.1

< 4.5

< 3.3

< 1.9

< 4.9

< 2.9

< 2.4

< 7.4

< 3.2

< 2.7

< 14.4

< 5.6

< 150

< 2.7

< 6.4

< 2.5

< 4.3

< 4.2

< 3.5

< 4.3

< 7.5

< 3.8

< 3.7

< 17.5

< 3.5 16-6

DUANE ARNOLD Table 17. Surface water, analysis for strontium.

Collection: Quarterly composites of monthly samples.

Units:

pCi/L Location D-49 Period 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

Lab Code DSW-1178 DSW-3190 DSW-5214 DSW-7274 Sr-89

< 0.66

< 0.63

< 0.62

< 0.80 Sr-90

< 0.54

< 0.51

< 0.51

< 0.54 Location D-61 Period 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

Lab Code DSW-1179 DSW-3191 DSW-5215 DSW-7275 Sr-89

< 0.64

< 0.71

< 0.74

< 0.87 Sr-90

< 0.51

< 0.59

< 0.55

< 0.53 17-1

DUANE ARNOLD Table 18. Fish, analyses of edible portion for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g wet Location Uostream. D-49 Lab Code 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 DF-2868 05-26-10 DF-2869 05-26-10 DF-5032 09-03-10 DF-5033 09-03-10 Moxostoma sp.

3.63 +/- 0.39

< 0.014

< 0.025

< 0.007

< 0.011

< 0.007

< 0.011

< 0.018

< 0.013

< 0.088

< 0.011

< 0.007

< 0.030

< 0.069 Carp 3.36 +/- 0.53

< 0.021

< 0.033

< 0.016

< 0.024

< 0.051

< 0.028

< 0.036

< 0.016

< 0.186

< 0.021

< 0.013

< 0.026

< 0.159 Moxostoma sp.

3.34 +/- 0.39

< 0.008

< 0.029

< 0.010

< 0.013

< 0.008

< 0.011

< 0.019

< 0.006

< 0.109

< 0.010

< 0.009

< 0.019

< 0.094 Carpiodes sp.

3.48 +/- 0.40

< 0.008

< 0.021

< 0.012

< 0.011

< 0.016

< 0.008

  • 0.021

< 0.006

< 0.093

< 0.009

< 0.010

< 0.026

< 0.093 Location Downstream, D-61 Lab Code DF-2870 DF-2871 DF-5034 DF-5035 Date Collected 05-26-10 05-26-10 09-03-10 09-03-10 Sample Type Carpiodies sp.

Common Carp Cyprinis Carpio Carpiodes sp.

K-40 2.92 +/- 0.35 2.87 +/- 0.40 2.95 +/- 0.37 3.14 +/- 0.37 Mn-54

< 0.011

< 0.013

< 0.012

< 0.008 Fe-59

< 0.037

< 0.022

< 0.035

< 0.020 Co-58

< 0.008

< 0.018

< 0.010

< 0.010 Co-60

< 0.010

< 0.006

< 0.012

< 0.012 Zn-65

< 0.015

< 0.033

< 0.008

< 0.015 Nb-95

< 0.013

< 0.028

< 0.015

< 0.009 Zr-95

< 0.015

< 0.031

< 0.030

< 0.020 Ru-103

< 0.014

< 0.022

< 0.008

< 0.010 Ru-106

< 0.071

< 0.120

< 0.094

< 0.107 Cs-134

< 0.012

< 0.017

< 0.006

< 0.011 Cs-137

< 0.012

< 0.016

< 0.010

< 0.013 Ce-141

< 0.014

< 0.032

< 0.024

< 0.020 Ce-144

< 0.052

< 0.125

< 0.046

< 0.051 18-1

DUANE ARNOLD Table 19. River sediment, analysis for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g dry Location D-50 (Plant Intake, Control)

Lab Code Date Collected 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 DBS-3340 06-25-10 6.60 +/- 0.81

< 0.047

< 0.076

< 0.028

< 0.030

< 0.062

< 0.043

< 0.073

< 0.043

< 0.28

< 0.029

< 0.039

< 0.078

< 0.19 DBS-5154 09-14-10 7.29 +/- 0.50

< 0.018

< 0.021

< 0.015

< 0.015

< 0.028

< 0.012

< 0.024

< 0.006

< 0.095

< 0.009

< 0.012

< 0.021

< 0.077 Location D-51 (Discharge)

Lab Code Date Collected K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 Ru-103 Ru-106 Cs-I 34 Cs-137 Ce-141 Ce-144 DBS-3341 06-25-10 5.75 +/- 0.66

< 0.030

< 0.058

< 0.026

< 0.022

< 0.061

< 0.039

< 0.065

< 0.045

< 0.21

< 0.027

< 0.035

< 0.074

< 0.12 DBS-5155 09-14-10 8.21 +/- 0.54,

< 0.014

< 0.024

< 0.015

< 0.013

< 0.034

< 0.013

< 0.015

< 0.011

< 0.091

< 0.005

< 0.013

< 0.026

< 0.085 19-1

DUANE ARNOLD Table 19. River sediment, analysis for gamma-emitting isotopes.

Collection: Semiannually Units:

pCi/g dry Location D-107A (North Drainage Ditch)

Lab Code DBS-3342 DBS-5156 Date Collected 06-25-10 09-14-10 K-40 7.41 +/- 0.76 7.10 +/- 0.86 Mn-54

< 0.030

< 0.043 Fe-59

< 0.090

< 0.085 Co-58

< 0.041

< 0.032 Co-60

< 0,030

< 0.024 Zn-65

< 0.080

< 0.078 Nb-95

< 0.069

< 0.040 Zr-95

< 0.059

< 0.041 Ru-103

< 0.036

< 0.033 Ru-106

< 0.21

< 0.27 Cs-134

< 0,034

< 0.029 Cs-137

< 0.029

< 0.038 Ce-141

< 0.087

< 0.064 Ce-144

< 0.22

< 0.24 19-2

DUANE ARNOLD Table 20.1 Precipitation, monthly collections, analyses for gamma emitting isotopes.

Units:

pCi/L Location:

D-16 Date Collected Lab Code Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-1 37 Ba-140 La-1 40 Date Collected Lab Code Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 01-28-10 DP-343

< 4.3

< 5.9

< 3.4

< 3.0

  • 6.8

< 4.7

  • 9.0

< 6.7

< 5.0

< 4.9

< 26.8

  • 2.4 02-25-10 DP-792

< 7.1

< 12.6

< 8.4

< 10.3

< 18.3

< 9.8

< 12.5

< 17.1

< 6.7

  • 8.0

< 59.4

< 11.4 03-18-10 04-22-10 05-20-10 06-03-10 a

DP-1142 DP-2023 DP-2556 DP-2952

< 5.5

< 7.8

< 5.4

< 3.9

  • 5.3

< 5.4

< 12.2

< 8.9

< 5.3

< 5.3

< 26.0

< 4.5 5.3 8.2 4.1 4.2 6.6 3.7 4.7 4.3 3.8 3.8 18.9 5.0

< 4.7

< 8.0

  • 3.9

< 4.5

< 3.6

< 3.5

< 5.3

  • 5.7
  • 4.0
  • 7.2

< 14.7

< 4.4

< 3.8

< 5.5

< 2.0

< 2.8

< 4.8

< 4.1

< 6.1

< 6.0

< 2.8

  • 3.8

< 12.8

< 4.0 07-22-10 08-19-10 09-16-10 10-21-10 11-11-10 12-30-10 DP-3982 DP-4618 DP-5239 DP-6206 DP-6719 DP-7466

  • 3.5

< 7.9

< 3.3

< 3.2

< 3.9

< 2.8

< 3.7

< 6.4

< 3.0

< 2.8

< 12.3

  • 2.8

< 1.1

< 2.9

< 1.7

  • 1.6

< 2.1

< 2.2

< 3.2

< 14.8

< 1.1

< 1.1

< 19.5

< 3.7

< 4.3

  • 7.1
  • 2.9

< 4.6

< 8.4

< 3.3

< 10.3

< 10.4

  • 3.5

< 4.2

< 24.0

  • 4.1

< 3.5

< 5.5

< 3.1

< 3.1

< 4.8

< 4.0

< 7.3

< 6.0

< 3.3

< 4.0

< 16.4

< 1.5

  • 7.3
  • 11.5
  • 3.8

< 5.1

< 8.6

< 4.5

< 7.5

< 12.5

  • 4.8

< 7.0

< 38.6

< 5.8

  • 5.2

< 7.9

< 4.4

< 1.7

  • 6.3

< 3.3

< 4.6

< 4.7

< 3.1

  • 3.3

< 21.4

< 2.7 a Some required LLDs were not reached, due to low volume of sample (250 ml.).

Table 20.2. Precipitation, quarterly composites of monthly samples, analysis for tritium.

Units:

pCifL Location:

D-16 Period 1st Qtr.

2nd Qtr.

3rd Qtr.

4thQtr.

Lab Code DP-1 148 DP-2993 DP-5274 DP-7467 H-3

< 144

< 140'

< 159

< 142 20-1

DUANE ARNOLD Table 21. Soil, analysis for strontium-90 and gamma-emitting isotopes.

Collection:

Annually Units: pCi/g dry Location D-15a D-16 Lab Code DSO-5152 DSO-5153 Date Collected 09-14-10 09-14-10 Sr-90

< 0.023

< 0,023 H-3 (pCi/L)

< 165 176 +/- 96 K-40 14.62 +/- 0.73 9.02 +/- 0.79 Mn-54

< 0.025

< 0.024 Fe-59

< 0.036

< 0.066 Co-58

< 0.009

< 0.025 Co-60

< 0.013

< 0.015 Zn-65

< 0.049

< 0,065 Nb-95

< 0.020

< 0.033 Zr-95

< 0.016

< 0.021 Ru-103

< 0.022

< 0.029 Ru-106

< 0.17

< 0.25 Cs-134

< 0.017

< 0.015 Cs-137 0.15 +/- 0.034 0.13 +/- 0,034 Ce-141

< 0.047

< 0.040 Ce-144

< 0.13

< 0,12 21-1

APPENDIX A SUPPLEMENTAL ANALYSES A-1

A-i. Supplemental analyses in support of the Groundwater Protection Plan.

Results of analyses for tritium and gamma emitting isotopes.

Location Lab Code Date Collected Sluice Pond DSW-4790 08-30-10 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 153

< 4.4

< 8.5

< 5.3

< 5.8

< 7.5

< 6.5

< 7.1

< 6.8

< 5.7

< 5.0

  • 30.6

< 3.6 Results of analyses for gross beta and tritium in ground water and precipitation.

Collection Concentration (pCi/L)

Location Lab Code Date Gross Beta H-3 MH-209 DWW-1 422 04-01-10 20.8 +/- 1.1

< 142 MH-210 DWW-1424 04-01-10 150.7 +/- 2.9 188 +/- 95' MH-211 DWW-1425 04-01-10 29.9 +/- 1.9

< 142 D-111 DP-7461 12-30-10

< 142 D-112 DP-7462 12-30-10

< 142 D-114 DP-7463 12-30-10

< 142 D-115 DP-7464 12-30-10

< 142 D-116 DP-7465 12-30-10

< 142 A-2

A-2. Supplemental REMP analyses in response to conditional requirements.

Results of analyses for gamma emitting isotopes.

Location Lab Code Date Collected D-58 DSW-6708 11-09-10 a

Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 0.9

< 7.8

< 1.4

< 0.7

<2.1

< 5.2

< 3.0

< 0.8

< 1.0 8 Gamma isotopic analysis performed if gross beta activity > 3 pCi/L and/or H3 activity exceeds MDA (Table 13.1).

A-3