ML071290128

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Radiological Environmental Monitoring Program, Annual Report - Part II: Data Tabulations & Analyses, January-December 2006
ML071290128
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Site: Duane Arnold NextEra Energy icon.png
Issue date: 12/31/2006
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Environmental
To:
Office of Nuclear Reactor Regulation
References
FOIA/PA-2010-0209
Download: ML071290128 (40)
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Text

- *- Environmental, Inc.

Midwest Laboratory J an Allegheny Technologies Co.

700 Landwehr Road

  • Northbrook, IL 60062-2310 ph. (847) 564-07800 fax (847) 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, 2006 Prepared and submitted by ENVIRONMENTAL, Inc.

Midwest Laboratory Project No. 8001 Reviewed and Approved La orato anager

TABLE OF CONTENTS Section Page List of Tables .............................................................................................................. iii

1.0 INTRODUCTION

.................................................................................................... v 2.0 LISTING O F MISSED SAM PLES ............................................................................. vi 3.0 DATA TABLES ............................................................................................................ vii Appendices A Supplem ental Analyses ........................................................................................ A-1 ii

LIST OF TABLES No. Title Page 1 Airborne particulates collected at Location D-3 (Hiawatha), analysis for gross beta 1-1 2 Airborne particulates and iodine collected at Location D-5 (Palo), analysis for gross beta and iodine-1 31 2-1 3 Airborne particulates collected at Location D-6 (Center Point), analysis for gross beta 3-1 4 Airborne particulates and iodine collected at Location D-7, (Shellsburg),

analysis for gross beta and iodine-1 31 4-1 5 Airborne particulates and iodine collected at Location D-11 (Toddsville),

analysis for gross beta and iodine-1 31 5-1 6 Airborne particulates collected at Location D-13 (Alburnett), analysis for g ro ss b e ta ....................................................................................................... 6 -1 7 Airborne particulates and iodine collected at Location D-15 (on-site, north),

analysis for gross beta and iodine-131 ............................................................ 7-1 8 Airborne particulates collected at Location D-1 6 (on-site, south), analysis for gross beta ................................................................................................ . . 8-1 9 Airborne particulate samples, quarterly composites of weekly samples, analysis for gamma-emitting isotopes ............................................................ 9-1 10 Ambient gamma radiation (TLD), quarterly exposure ................................................ 10-1 11 Milk samples, analysis for iodine-131 and gamma emitting isotopes ......................... 11-1 12 Ground water, analysis for gross beta and tritium 12.1 Well water (potable), analysis for gross beta and tritium ..................................... 12-1 12.2 On-site monotoring wells, analysis for gross beta and tritium .............................. 12-2 13 Vegetation samples (broadleaf), analysis for iodine-131 and gamma-e m itting isoto pe s ............................................................................................ 13-1 14 Vegetation samples (hay and grain), analysis for gamma-emitting isotopes ............. 14-1 15 Surface water samples, analysis for tritium and gamma-emitting isotopes ............... 15-1 16 Surface water samples, quarterly composites of monthly samples, analysis fo r tritiu m ........................................................................................................ 16-1 iii

LIST OF TABLES (continued) 17 Fish samples, analysis for gamma-emitting isotopes ................................................ 17-1 18 River sediment samples, analysis for gamma-emitting isotopes .............................. 18-1 19 Precipitation samples, analysis for gamma-emitting isotopes .................... 19-1 20 Precipitation samples, quarterly composites of monthly samples, analysis for tritiu m .............................................................................................................. 2 0 -1 21 Soil samples, analysis for strontium-90 and gamma-emitting isotopes ...................... 21-1 In addition, the following tables are in the Appendices:

Appendix A A -1 Precipitation, analysis for tritium ............................................................................... A -2 iv

1.0 INTRODUCTION

The following constitutes a supplement to the Annual Report for the Radiological Environmental Monitoring Program conducted at the Duane Arnold Energy Center, Palo, Iowa in 2006. Results of completed analyses are presented in the attached tables.

For information regarding sampling locations, type and frequency of collection, and sample codes, please refer to Part I, Tables 5.3 - 5.5 and Figures 5.1 and 5.2.

V

2.0 LISTING OF MISSED SAMPLES Sample Collection Date Type Analysis Location(s) or Period Comments MI Gamma, 1-131 D-96 2006 No sample; herd sold.

MI Gamma, 1-131 D-101 2006 No sample; goat sold.

AP/I Beta, 1-131 D-07 03-09-06 Electric off due to relocation.

TLD Ambient Gamma D-1 1st Qtr TLD missing in field.

TLD Ambient Gamma D-2 2nd Qtr TLD missing in field.

BS a Gamma D-50, D-51, 07-19-06 Sediments collected, but sampling D-107 frequency requirements not met.

AP Beta D-16 08-23-06 Filter lost in field.

VE Gamma D-58 10-02-06 No broadleaf or forage sample received.

VE Gamma D-96 10-02-06 No vegetation samples received.

VE Gamma D-109 10-02-06 No broadleaf sample received.

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

vi

3.0 DATA TABLES vii

DUANE ARNOLD Table 1. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-131 a Location: D-3 (Hiawatha)

Units: pCi/ma Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (ml) Gross Beta Collected (m") Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 330 0,019 +/- 0.003 07-06-06 287 0.038 +/- 0.004 01-12-06 290 0.030 +/- 0.004 07-13-06 291 0.029 +/- 0.004 01-19-06 217 b 0.024 +/- 0.005 07-20-06 292 0.035 +/- 0.004 01-26-06 291 0.027 +/- 0.004 07-27-06 244 0.033 +/- 0.005 02-02-06 291 0.023 +/- 0.004 08-03-06 286 0.035 +/- 0.004 02-09-06 291 0.028 +/- 0.004 08-10-06 285 0.031 +/- 0.004 02-16-06 291 0.030 +/- 0.004 08-17-06 285 0.029 +/- 0.004 02-23-06 292 0.037 +/- 0.004 08-23-06 246 0.037 +/- 0.005 03-02-06 291 0.028 +/- 0.004 08-31-06 327 0.049 +/- 0.005 03-09-06 289 0.017 +/- 0.004 09-07-06 282 0.032 +/- 0.004 03-16-06 293 0.025 +/- 0.004 09-14-06 215 d 0.034 +/- 0.005 03-23-06 289 0.030 +/- 0.004 09-21-06 64 0.097 +/- 0.016 03-30-06 292 0.008 +/- 0.003 09-28-06 285 0.027 +/- 0.004 lst Quarter Mean +/- s.d. 0.025 +/- 0.007 3rd Quarter Mean +/- s.d. 0.039 +/- 0.018 04-06-06 301 0.021 +/- 0.004 10-05-06 290 0.030 +/- 0.004 04-13-06 300 0.028 +/- 0.004 10-12-06 285 0.017 +/- 0.003 04-20-06 300 0.022 +/- 0.004 10-19-06 291 0.022 +/- 0.004 04-27-06 300 0.018 +/- 0.004 10-26-06 289 0.026 +/- 0.005 11-02-06 289 0.023 +/- 0.004 05-04-06 299 0.023 +/- 0.004 05-11-06 300 0.018 +/- 0.003 11-09-06 289 0.042 +/- 0.005 05-17-06 257 0.010 +/- 0.003 11-16-06 288 0.033 +/- 0.004 05-25-06 343 0.020 +/- 0.003 11-22-06 245 0.049 +/- 0.005 06-01-06 299 0.026 +/- 0.004 11-30-06 331 0.050 +/- 0.005 06-08-06 297 0.021 +/- 0.004 12-07-06 290 0.043 +/- 0.005 06-15-06 308 0.021 +/- 0.003 12-14-06 287 0.047 +/- 0.005 06-22-06 287 0.025 +/- 0.004 12-21-06 288 0.025 +/- 0.004 06-29-06 153 o 0.039 +/- 0.007 12-28-06 291 0.032 +/- 0.004 2nd Quarter Mean +/- s.d. 0.022 +/- 0.007 4th Quarter Mean +/- s.d. 0.034 +/- 0.011 Cumulative Average 0.030 Previous Annual Average 0.027 a lodine-131 concentrations are < 0.03 pCi/mi3 unless noted otherwise.

b Volume low; power off; relocation.

CVolume low; power off.

d Low volume; no power due to construction; 1-131 concentration, < 0.057pCi/m3.

1-1

DUANE ARNOLD Table 2. Airborne particulates and charcoal canisters, analyses for gross beta and iodine-1 31'.

Location: D-5 (Palo)

Units: pCi/m" Collection: Continuous, weekly exchange.

Date Volume Date Volume.

Collected (m") Gross Beta Collected (mi) Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 320 0.023 +/- 0.004 07-06-06 300 0.035 +/- 0.004

+/- 0.004 07-13-06 298 0.033 +/- 0.004 01-12-06 281 0.029 284 0.029 +/- 0.004 07-20-06 301 0.037 +/- 0.004 01-19-06 0.034 +/- 0.005 07-27-06 300 0.029 +/- 0.004 01-26-06 203 b 08-03-06 298 0.030 +/- 0.004 02-02-06 234 b 0.031 +/- 0.005 299 0.034 +/- 0.004 02-09-06 283 0.029 +/- 0.004 08-10-06 08-17-06 299 0.030 +/- 0.004 02-16-06 283 0.027 +/- 0.004 08-23-06 256 0.041 +/- 0.005 02-23-06 283 0.039 +/- 0.005 08-31-06 343 0.049 +/- 0.004 03-02-06 278 0.037 +/- 0.004 09-07-06 300 0,027 +/- 0.004 03-09-06 281 0.019 +/- 0.004

+/- 0.004 09-14-06 300 0.025 +/- 0,004 03-16-06 284 0.022 09-21-06 301 0.025 +/- 0.004 03-23-06 287 0.022 +/- 0.004 09-28-06 299 0.027 +/- 0.004 03-30-06 289 0.012 +/- 0.003 0.027 +/- 0.008 3rd Quarter Mean +/- s.d. 0.032 +/- 0.007 1st Quarter Mean +/- s.d.

04-06-06 287 0.025 +/- 0.004 10-05-06 301 0.037 +/- 0.004 10-12-06 298 0.020 +/- 0.004 04-13-06 288 0.029 +/- 0.004 10-19-06 302 0.025 +/- 0.004 04-20-06 289 0.023 +/- 0.004 10-26-06 299 0.030 +/- 0.004 04-27-06 288 0.023 +/- 0.004 11-02-06 301 0.027 +/- 0.004 05-04-06 288 0.025 +/- 0.004 11-09-06 300 0.053 +/- 0.005 05-11-06 289 0.022 +/- 0.004 11-16-06 301 0.036 +/- 0.004 05-17-06 248 0.006 +/- 0.003 11-22-06 254 0.048 +/- 0.005 05-25-06 330 0.021 +/- 0.003 11-30-06 344 0.057 +/- 0.005 06-01-06 287 0.029 +/- 0.004 12-07-06 302 0.046 +/- 0.005 06-08-06 287 0.025 +/- 0.004 12-14-06 287 0.045 +/- 0.005 06-15-06 291 0.021 +/- 0.004 12-21-06 300 0.031 +/- 0.004 06-22-06 298 0.027 +/- 0.004 12-28-06 287 0.035 +/- 0.004 06-29-06 300 0.019 +/- 0.004 0.023 +/- 0.006 4th Quarter Mean +/- s.d. 0.038 +/- 0.011 2nd Quarter Mean +/- s.d.

Cumulative Average 0.030 Previous Annual Average 0.032 3

a Iodine-1 31 concentrations are < 0.03 pCi/mi unless noted otherwise.

b Volume low due to electric off; relocation.

2-1

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

Location: D-6 (Center Point)

Units: pCi/m" Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected* (m") Gross Beta Collected (m") Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 326 0.017 +/- 0.003 07-06-06 280 0.036 +/- 0.004 01-12-06 287 0.031 +/- 0.004 07-13-06 278 0.024 +/- 0.004 01-19-06 290 0.018 +/- 0.004 07-20-06 281 0.032 +/- 0.004 01-26-06 288 0.033 +/- 0.004 07-27-06 279 0.028 +/- 0.004 02-02-06 288 0.025 +/- 0.004 08-03-06 279 0.028 +/- 0.004 02-09-06 289 0.026 +/- 0.004 08-10-06 280 0.029 +/- 0.004 02-16-06 289 0.027 +/- 0.004 08-17-06 279 0.029 +/- 0.004 02-23-06 288 0.042 +/- 0.005 08-23-06 238 0.033 +/- 0.005 03-02-06 288 0.034 +/- 0.004 08-31-06 320 0.046 +/- 0.004 03-09-06 288 0.021 +/- 0.004 09-07-06 280 0.027 +/- 0.004 03-16-06 289 0.025 +/- 0.004 09-14-06 280 0.022 +/- 0.004 03-23-06 287 0.024 +/- 0.004 09-21-06 281 0.019 +/- 0.004 03-30-06 289 0.012 +/- 0.003 09-28-06 291 0.028 +/- 0.004 1st Quarter Mean +/- s.d. 0.026 +/- 0.008 3rd Quarter Mean +/- s.d. 0.029 +/- 0.007 04-06-06 289 0.019 +/- 0.004 10-05-06 294 0.034 +/- 0.004 04-13-06 161 b 0.029 +/- 0.006 10-12-06 287 0.020 +/- 0.004 04-20-06 292 0.020 +/- 0.004 10-19-06 294 0.028 +/- 0.004 04-27-06 290 0.017 +/- 0.004 10-26-06 290 0.030 +/- 0.004 11-02-06 289 0.027 +/- 0.004 05-04-06 291 0.023 +/- 0.004 05-11-06 291 0.016 +/- 0.003 11-09-06 290 0.045 +/- 0.005 05-17-06 250 0.008 +/- 0.003 11-16-06 289 0.036 +/- 0.004 05-25-06 333 0.020 +/- 0.003 11-22-06 241 0.053 +/- 0.006 06-01-06 290 0.030 +/- 0.004 11-30-06 330 0.055 +/- 0.005 06-08-06 290 0.026 +/- 0.004 12-07-06 293 0.042 +/- 0.004 06-15-06 294 0.023 +/- 0.004 12-14-06 290 0.044 +/- 0.005 06-22-06 279 0.026 +/- 0.004 12-21-06 289 0.029 +/- 0.004 06-29-06 280 0.020 +/- 0.004 12-28-06 292 0.036 +/- 0.004 2nd Quarter Mean +/- s.d. 0.021 +/- 0.006 4th Quarter Mean +/- s.d. 0.037 +/- 0.010 Cumulative Average 0.028 Previous Annual Average 0.031 3

a Iodine-131 concentrations are < 0.03 pCi/m unless noted otherwise.

3

b. Electric off; 1-131 result: < 0.038 pCi/m due to low volume.

3-1

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

Location: D-7 (Shellsburg)

Units: pCi/m' Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mj) Gross Beta Collected (ma) Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 323 0.023 +/- 0.004 07-06-06 289 0.036 +/- 0.004 01-12-06 284 0.032 +/- 0.004 07-13-06 287 0.034 +/- 0.004 01-19-06 287 0.029 +/- 0.004 07-20-06 290 0;033 +/- 0.004 01-26-06 285 0.027 +/- 0.004 07-27-06 288 0.031 +/- 0.004 02-02-06 286 0.026 +/- 0.004 08-03-06 287 0.027 +/- 0.004 02-09-06 286 0.027 +/- 0.004 08-10-06 286 0.025 +/- 0.004 02-16-06 286 0.027 t 0.004 08-17-06 288 0.022 +/- 0.004 02-23-06 286 0.037 +/- 0.004 08-23-06 246 0.037 +/- 0.005 03-02-06 210 0.036 +/- 0.005 08-31-06 330 0.042 +/- 0.004 03-09-06 NDc 09-07-06 289 0.032 +/- 0.004 03-16-06 286 0.023 +/- 0.004 09-14-06 289 0.025 +/- 0.004 03-23-06 287 0.020 +/- 0.004 09-21-06 289 0.020 +/- 0.004 03-30-06 289 0.011 +/- 0.003 09-28-06 288 0.029 +/- 0.004 1st Quarter Mean +/- s.d. 0.027 +/- 0.007 3rd Quarter Mean +/- s.d. 0.030 +/- 0.006 04-06-06 215 d 0.018 +/-0.005 10-05-06 289 0.029 +/- 0.004 04-13-06 242 e 0.027 +/- 0.005 10-12-06 287 0.022 +/- 0.004 04-20-06 291 0.023 +/- 0.004 10-19-06 291 0.022 +/- 0.004 04-27-06 287 0.016 +/- 0.004 10-26-06 288 0.015 +/- 0.003 11-02-06 289 0.011 +/- 0.003 05-04-06 288 0.023 +/- 0.004 05-11-06 289 0.018 +/- 0.003 11-09-06 290 0.035 +/- 0.004 05-17-06 248 0.009 +/- 0.003 11-16-06 289 0.027 +/-0.004 05-25-06 330 0.022 +/- 0.003 11-22-06 244 0.034 +/- 0.005 06-01-06 287 0.032 +/- 0.004 11-30-06 330 0.049 +/- 0.005 06-08-06 287 0.030 +/- 0.004 12-07-06 290 0.046 +/- 0.005 06-15-06 291 0.025 +/- 0.004 12-14-06 287 0.040 +/-,0.005 06-22-06 287 0.029 +/- 0.004 12-21-06 289 0.034 +/- 0.004 06-29-06 289 0.024 +/- 0.004 12-28-06 301 0.028 +/- 0.004 2nd Quarter Mean +/- s.d. 0.023 +/- 0.006 4th Quarter Mean +/- s.d. 0.030 +/- 0.011 Cumulative Average 0.027 Previous Annual Average 0.028 3

a Iodine-1 31 concentrations are < 0.03 pCi/n3 unless noted otherwise.

b Volume low; electric off due to relocation. d Compressor failure.

c "ND" = No data; see Table 2.0, Listing of Missed Samples. 6-day run time.

4-1

DUANE ARNOLD Table 5. Airborne particulates and charcoal canisters, analyses for gross betaand iodine-1 3 1 a.

Location: D-1 1 (Toddville)

Units: pCi/m' Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mi) Gross Beta Collected (m") Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 333 0.022 +/- 0.004 07-06-06 287 0.038 +/- 0.004 01-12-06 293 0.033 +/- 0.004 07-13-06 288 0.033 +/- 0.004 295 0.032 +/- 0.004 07-20-06 289 0.035 +/- 0.004 01-19-06 01-26-06 294 0.030 +/- 0.004 07-27-06 288 0.036 +/- 0.004 02-02-06 293 0.023 +/- 0.004 08-03-06 287 0.032 +/- 0.004 02-09-06 293 0.027 +/- 0.004 08-10-06 289 0.027 +/- 0.004 294 0.028 +/- 0.004 08-17-06 302 0.033 +/- 0.004 02-16-06 02-23-06 295 0.041 +/- 0.005 08-23-06 246 0.043 +/- 0.005 03-02-06 294 0.034 +/- 0.005 08-31-06 329 0.054 +/- 0.005 03-09-06 292 0.022 +/- 0.004 09-07-06 289 0.029 +/- 0.004 03-16-06 296 0.027 +/- 0.004 09-14-06 289 0.029 +/- 0.004 03-23-06 292 0.023 +/- 0.004 09-21-06 290 0.024 +/- 0.004 03-30-06 296 0.010 +/- 0.003 09-28-06 288 0.028 +/- 0.004.

1st Quarter Mean +/- s.d. 0.027 +/- 0.008 3rd Quarter Mean +/- s.d. 0.034 +/- 0.008 04-06-06 281 0.019 +/- 0.004 10-05-06 290 0.038 +/- 0.004 04-13-06 292 0.028 +/- 0.004 10-12-06 285 0.019 +/- 0.004 04-20-06 291 0.018 +/- 0.003 10-19-06 291 0.022 +/- 0.004 04-27-06 291 0.019 +/- 0.004 10-26-06 289 0.026 +/- 0.004 11-02-06 289 0.025 +/- 0.004 05-04-06 291 0.024 +/- 0.004 05-11-06 291 0.018 +/- 0.003 11-09-06 289 0.043 +/- 0.005 05-17-06 249 0.012 +/- 0.004 11-16-06 288 0.031 +/- 0.004 05-25-06 334 0.021 +/- 0.003 11-22-06 242 0.044 +/- 0.005 06-01-06 290 0.028 +/- 0.004 11-30-06 331 0.050 +/- 0.005 06-08-06 289 0.024 +/- 0.004 12-07-06 290 0.038 +/- 0.004 06-15-06 294 0.021 +/- 0.004 12-14-06 287 0.040 +/- 0.005 06-22-06 290 0.027 +/- 0.004 12-21-06 288 0.027 +/- 0.004 06-29-06 290 0.022 +/- 0.004 12-28-06 289 0.035 +/- 0.004 2nd Quarter Mean +/- s.d. 0.022 +/- 0.005 4th Quarter Mean +/- s.d. 0.034 +/- 0.009 Cumulative Average 0.029 Previous Annual Average 0.031 lIodine-131 concentrations are < 0.03 pCi/m3 unless noted otherwise.

5-1

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

Location: D-13 (Alburnett)

Units: pCi/m" Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mi) Gross Beta Collected (mj) Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 342 0.018 +/- 0.003 07-06-06 303 0.026 +/- 0.004 01-12-06 302 0.028 +/- 0.004 07-13-06 301 0.027 +/- 0.004 01-19-06 304 0.028 +/- 0.004 07-20-06 304 0.033 +/- 0.004 01-26-06 303 0.025 +/- 0.004 07-27-06 302 0.027 +/- 0.004 02-02-06 302 0.024 +/- 0.004 08-03-06 301 0.029 +/- 0.004 02-09-06 303 0.027 +/- 0.004 08-10-06 303 0.029 +/- 0.004 02-16-06 303 0.028 +/- 0.004 08-17-06 302 0.024 +/- 0.004 02-23-06 302 0.035 +/- 0.005 08-23-06 258 0.030 +/- 0.005 03-02-06 176 b 0.031 +/- 0.006 08-31-06 346 0.040 +/- 0.004 03-09-06 253 0.021 +/- 0,004 09-07-06 303 0.022 +/- 0.004 03-16-06 304 0.020 +/- 0.004 09-14-06 .303 0.019 +/- 0.003 03-23-06 301 0.018 +/- 0.003 09-21-06 304 0.020 +/- 0.003 03-30-06 304 0.014 +/- 0.003 09-28-06 288 0.025 +/- 0.004 1st Quarter Mean +/- s.d. 0.024 +/- 0.006 3rd Quarter Mean +/- s.d. 0.027 +/- 0.006 04-06-06 286 0.018 +/- 0.004 10-05-06 291 0.036 +/- 0.004 04-13-06 288 0.027 +/- 0.004 10-12-06 285 0.023 +/- 0.004 04-20-06 291 0.018 +/- 0.003 10-19-06 291 0.023 +/- 0.004 04-27-06 287 0.019 +/- 0.004 10-26-06 288 0.029 +/- 0.004 11-02-06 286 0.025 +/- 0.004 05-04-06 288 0.024 +/- 0.004 05-11-06 288 0.020 +/- 0.004 11-09-06 290 0.041 +/- 0.005 05-17-06 .248 0.010 +/- 0.004 11-16-06 289 0.034 +/- 0.004 05-25-06 330 0.021 +/- 0.003 11-22-06 245 0.045 +/- 0.005 06-01-06 287 0.027 +/- 0.004 11-30-06 327 0.053 +/- 0.005 06-08-06 287 0.022 +/- 0.004 12-07-06 290 0.045 +/- 0.005 06-15-06 291 0.023 +/- 0.004 12-14-06 287 0.043 +/- 0.005 06-22-06 301 0.026 +/- 0.004 12-21-06 289 0.027 +/- 0.004 06-29-06 304 0.020 +/- 0.004 12-28-06 291 0.034 +/- 0.004 2nd Quarter Mean +/- s.d. 0.021 +/- 0.005 4th Quarter Mean +/- s.d. 0.035 +/- 0.010 Cumulative Average 0.027 Previous Annual Average 0.034 Iodine-131 concentrations are < 0.03 pCi/mi unless noted otherwise.

'Volume low; electric off due to relocation.

6-1

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

Location: D-15 (On-site)

Units: pCi/m' Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mj) Gross Beta Collected (mj) Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 318 0.023 +/- 0.004 07-06-06 283 0.034 +/- 0.004 01-12-06 278 0.032 +/- 0.004 07-13-06 281 0.028 +/- 0.004 01-19-06 281 0.032 +/- 0.004 07-20-06 284 0.037 +/- 0.004 01-26-06 279 0.029 +/- 0.004 07-27-06 282 0.032 +/- 0.004 02-02-06 280 0.021 +/- 0.004 08-03-06 281 0.030 +/- 0.004 02-09-06 280 0.025 +/- 0.004 08-10-06 276 0.030 +/- 0.004 02-16-06 280 0.025 +/- 0.004 08-17-06 282 0.031 +/- 0.004 02-23-06 280 0.037 +/- 0.005 08-23-06 242 0.041 +/- 0.005 03-02-06 278 0.033 +/- 0.004 08-31-06 324 0.043 +/- 0.004 03-09-06 281 0.021 +/-,0.004 09-07-06 282 0.027 +/- 0.004 03-16-06 280 0.021 +/- 0.004 09-14-06 284 0.026 +/- 0.004 03-23-06 287 0.019 +/- 0.004 09-21-06 283 0.023 +/- 0.004 03-30-06 204 D 0.013 +/- 0.004 09-28-06 282 0.029 +/- 0.004 1st Quarter Mean +/- s.d. 0.025 +/- 0.007 3rd Quarter Mean +/- s.d. 0.032 +/- 0.006 04-06-06 269 0.021 +/- 0.004 10-05-06 283 0.032 +/- 0.004 04-13-06 296 0.024 +/- 0.004 10-12-06 290 0.021 +/- 0.004 04-20-06 288 0.025 +/- 0.004 10-19-06 294 0.022 +/- 0.004 04-27-06 270 0.020 +/- 0.004 10-26-06 290 0.029 +/- 0.004 11-02-06 293 0.021 +/- 0.004 05-04-06 287 0.025 +/- 0.004 05-11-06 287 0.020 +/- 0.004 11-09-06 290 0.043 +/- 0.005 05-17-06 233 0.014 +/- 0.004 11-16-06 294 0.032 +/- 0.004 05-25-06 324 0.022 +/- 0.003 11-22-06 242 0.044 +/- 0.005 06-01-06 273 0.028 +/- 0.004 11-30-06 334 0.052 +/- 0.005 06-08-06 283 < 0.004 12-07-06 293 0.040 +/- 0.004 06-15-06 269 0.022 +/- 0.004 12-14-06 289 0.044 +/- 0.005 06-22-06 277 0.028 +/- 0.004 12-21-06 293 0.027 +/- 0.004 06-29-06 283 0.019 +/- 0.004 12-28-06 292 0.034 +/- 0.004 2nd Quarter Mean +/- s.d. 0.022 +/- 0.004 4th Quarter Mean +/- s.d. 0.034 +/- 0.010 Cumulative Average 0.028 Previous Annual Average 0.030 a Iodine-1 31 concentrations are < 0.03 pCi/mi3 unless noted otherwise.

b Volume low; electric off.

' Light seal.

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/mr Collection: Continuous, weekly exchange.

Date Volume Date Volume Collected (mi) Gross Beta Collected (min) Gross Beta Required LLD 0.010 Required LLD 0.010 01-05-06 321 0.023 +/- 0.004 07-06-06 283 0.041 +/- 0.005 01-12-06 281 0.036 +/- 0.004 07-13-06 281 0.029 +/- 0.004 01-19-06 284 0.031 +/- 0.004 07-20-06 286 0.033 +/- 0.004 01-26-06 282 0.025 +/- 0.004 07-27-06 281 0.033 +/- 0.004 02-02-06 283 0.023 +/- 0.004 08-03-06 281 0.030 +/- 0.004 02-09-06 280 0.030 +/- 0.004 08-10-06 283 0.025 +/- 0.004 02-16-06 283 0.031 +/- 0.004 08-17-06 282 0.031 +/- 0.004 02-23-06 283 0.025 +/- 0.004 08-23-06 NDb 03-02-06 281 0.032 +/- 0.004 08-31-06 324 0.047 +/- 0.004 03-09-06 283 0.024 +/- 0.004 09-07-06 283 0.030 +/- 0.004 03-16-06 282 0.025 +/- 0.004 09-14-06 249 0.026 +/- 0.004 03-23-06 291 0.019 +/- 0.004 09-21-06 283 0.025 +/- 0.004 289 0.009 +/- 0.003 09-28-06 283 0.027 +/- 0.004 03-30-06 1st Quarter Mean +/- s.d. 0.026 +/- 0.007 3rd Quarter Mean +/- s.d. 0.031 +/- 0.007 04-06-06 289 0.018 +/- 0.004 10-05-06 291 0.036 +/- 0.004 04-13-06 291 0.026 +/- 0.004 10-12-06 290 0.018 +/- 0.004 04-20-06 293 0.020 +/- 0.004 10-19-06 294 0.020 +/- 0.004 04-27-06 289 0.017 +/- 0.004 10-26-06 290 0.031 +/- 0.004 11-02-06 293 0.024 +/- 0.004 05-04-06 291 0.026 +/- 0.004 05-11-06 291 0.019 +/- 0.003 11-09-06 290 0.043 +/- 0.005 05-17-06 251 0.009 +/- 0.003 11-16-06 294 0.041 +/- 0.004 05-25-06 333 0.020 +/- 0.003 11-22-06 246 0.045 +/- 0.005 06-01-06 290 0.030 +/- 0.004 11-30-06 335 0.054 +/- 0.005 06-08-06 289 0.024 +/- 0.004 12-07-06 293 0.044 +/- 0.005 06-15-06 276 0.019 +/- 0.004 12-14-06 289 0.039 +/- 0.005 06-22-06 281 0.024 +/- 0.004 12-21-06 292 0.029 +/- 0.004 06-29-06 284 0.019 +/- 0.004 12-28-06 292 0.033 +/- 0.004 2nd Quarter Mean +/- s.d. 0.021 +/- 0.005 4th Quarter Mean +/- s.d. 0.035 +/- 0.011 Cumulative Average 0.028 Previous Annual Average 0.033 a Iodine-1 31 concentrations are < 0.03 pCi/m3 unless noted otherwise.

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

8-1

DUANE ARNOLD Table 9. Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/ms Location D-3 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2804 DAP-4951 DAP-7578 DAP-9542 Volume (me) 3747 3744. 3389 3753 Be-7 0.058 +/- 0.013 0.097 +/- 0.018 0.105 +0.017 0.088 +/- 0.015 Nb-95 < 0.0011 < 0.0015 0.0013 < 0.0011 Zr-95 < 0.0011 < 0.0015 0.0010 < 0.0008 Ru-103 < 0.0008 < 0.0008 0.0010 < 0.0010 Ru-106 < 0.0049 < 0.0071 0.0073 < 0.0053 Cs-1 34 < 0.0007 < 0.0009 0.0008 < 0.0008 Cs-137 < 0.0005 < 0.0006 0.0009 < 0.0006 Ce-141 < 0.0020 < 0.0027 0.0016 < 0.0011 Ce-144 < 0.0042 < 0.0043 0.0042 < 0.0026 Location D-5 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code 28051945 DAP-4952,3 DAP-7579 DAP-9543 Volume (me) 3590 3770 3894 3876 Be-7 0.059 +/- 0.016 0.091 +/- 0.012 0.092 +/- 0.017 0.062 +/- 0.013 Nb-95 < 0.0016 < 0.0005 0.0008 0.0008 Zr-95 < 0.0025 < 0.0017 0.0013 0.0009 Ru-103 < 0.0016 < 0.0008 0.0012 0.0007 Ru-106 < 0.0036 < 0.0041 0.0059 0.0057 Cs-1 34

  • 0.0009 < 0.0007 0.0009 0.0003 Cs-137 < 0.0009 < 0.0005 0.0005 0.0006 Ce-141 < 0.0015
  • 0.0011 0.0012 0.0014 Ce-144 < 0.0049
  • 0.0047 0.0034 0.0044 Location D-6 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2806 DAP-4954 DAP-7580 DAP-9544 Volume (m') 3786 3630 3646 3768 Be-7 0.059 +/- 0.017 0.055 +/- 0.015 0.080 +/- 0.020 0.071 +/- 0.013 Nb-95 < 0.0022 < 0.0006 < 0.0009 0.0007 Zr-95 < 0.0031 < 0.0009 < 0.0013 0.0007 Ru-103 < 0.0014 < 0.0009 < 0.0009 0.0006 Ru-106 < 0.0048 < 0.0047 < 0.0049 0.0056 Cs-1 34 < 0.0005 < 0.0007 < 0.0009 0.0007 Cs-137 < 0.0006 < 0.0006 < 0.0004 0.0008 Ce-141 < 0.0014 < 0.0023 < 0.0025 0.0014 Ce-1 44 < 0.0057 < 0.0054 < 0.0027 0.0032 9-1

DUANE ARNOLD Table 9. Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/m4 Location D-7 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2807 DAP-4955 DAP-7581 DAP-9545 Volume (m4) 3395 3631 3746 3764 Be-7 0.064 +/- 0.016 0.091 +/- 0.019 0.094 +/- 0.017 0.055 +/- 0.013 Nb-95 < 0.0016 < 0.0008 < 0.0014 < 0.0011 Zr-95 < 0.0018 < 0.0014 < 0.0010 < 0.0014 Ru-103 < 0.0009 < 0.0011 < 0.0010 < 0.0004 Ru-1 06 < 0.0085 < 0.0036 < 0.0062 < 0.0059 Cs-134 < 0.0010 < 0.0009 < 0.0007 < 0,0009 Cs-137 < 0.0003 < 0.0007 < 0.0007 < 0.0007 Ce-141 < 0.0022 < 0.0015 < 0.0020 < 0.0016 Ce-144 < 0.0056 < 0.0042 < 0.0049 < 0.0051 Location D-11 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2808 DAP-4956 DAP-7582 DAP-9546 Volume (m') 3860 3773 3761 3748 Be-7 0.046 +/- 0.015 0.086 + 0.018 0.085 +/- 0.017 0.078 +/- 0.015 Nb-95 < 0.0013 0.0009 < 0.0008 < 0.0015 Zr-95 < 0.0027 0.0021 < 0.0014 < 0.0014 Ru-103 < 0.0013 0.0009 < 0.0008 < 0.0008 Ru-106 < 0.0078 0.0046 < 0.0063 < 0.0063 Cs-1 34 < 0.0009 0.0007 < 0.0005 < 0.0004 Cs-137 < 0.0009 0.0005 < 0.0004 < 0.0008 Ce-141 < 0.0015 0.0009 < 0.0022 < 0.0012 Ce-144 < 0.0049 0.0052 < 0.0019 < 0.0032 Location D-1 3 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2809 DAP-4957 DAP-7583 DAP-9547 Volume (mi) 3799 3776 3918 3749 Be-7 0.047 +/- 0.017 0.092 +/- 0.018 0.073 +/- 0.016 0.063 + 0.016 Nb-95 < 0.0021 < 0.0011 < 0.0008 0.0007 Zr-95 < 0.0009 < 0.0017 < 0.0015 0.0012 Ru-103 < 0.0009 < 0.0010 < 0.0011 0.0010 Ru-106 < 0.0083 < 0.0046 < 0.0052 0.0083 Cs-1 34 < 0.0004 < 0.0009 < 0.0007 0.0007 Cs-137 < 0.0010 < 0.0005 < 0.0006 0.0010 Ce-141 < 0.0025 < 0,0022 < 0.0020 0.0013 Ce-144 < 0.0049 < 0.0039 < 0.0041 0.0039 9-2

DUANE ARNOLD Table 13. Airborne particulates, analyses for gamma-emitting isotopes.

Collection: Quarterly Composite Units: pCi/m6 Location D-1 5 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2810 DAP-4958 DAP-7584 DAP-9548 Volume (m') 3606 3639 3666 3777 Be-7 0.057 +/- 0.015 0.086 +/- 0.018 0.093 +/- 0.017 0.063 +/- 0.017 Nb-95 < 0.0010 < 0.0015 < 0.0008 < 0.0008 Zr-95 < 0.0012 < 0.0020 < 0.0017 < 0.0015 Ru-103 < 0.0012 < 0.0010 < 0.0008 < 0.0008 Ru-i 06 < 0.0058 < 0.0040 < 0.0053 < 0.0051 Cs-1 34 < 0.0008 < 0.0007 < 0.0006 < 0.0005 Cs-1 37 < 0.0009 < 0.0008 < 0.0006 < 0.0006 Ce-141 < 0.0024 < 0.0019 < 0.0013 < 0.0018 Ce-1 44 < 0.0049 < 0.0047 < 0.0051 < 0.0028 Location D-16 Quarter 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Lab Code DAP-2811 DAP-4959 DAP-7585 DAP-9549 Volume (m") 3723 3748 3399 3789 Be-7 0.063 +/- 0.017 0.090 +/- 0.015 0.088 +/- 0.019 0.069 +/- 0.016 Nb-95 < 0.0009 < 0.0014 < 0.0015 < 0.0017 Zr-95 < 0.0013 < 0.0013 < 0.0016 < 0.0021 Ru-103 < 0.0015 < 0.0012 < 0.0009 < 0.0010 Ru-1 06 < 0.0072 < 0.0073 < 0.0089 < 0.0073 Cs-1 34 < 0.0008 < 0.0004 < 0.0008 < 0.0006 Cs-137 < 0.0006 < 0.0007 < 0.0007 < 0.0007 Ce-141 < 0.0018 < 0.0014 < 0.0028 < 0.0018 Ce-144 < 0.0036 < 0.0032 < 0.0040 < 0.0045 9-3

DUANE ARNOLD Table 10. Area monitors (TLD), Quarterly Units: mR/91 days Air Stations 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

D-1 (C) ND" 15.8 +/- 1.1 22.4 +/- 0.8 16.2 +/- 1.1 D-2 (C) 16.5 +/- 0.7 NDa 19.7 +/- 1.8 13.3 +/- 1.8 D-3 16.4 +/- 1.1 14.9 +/- 0.8 17.1 +/- 1.1 14.9 +/- 0.9 D-5 17.9 +/- 1.2 19.0 +/- 0.8 18.6 +/- 1.2 20.2 +/- 1.2 D-6 17.1 +/- 0.8 17.5 +/- 0.9 17.9 +/- 1.1 17.3 +/- 0.9 D-7 16.4 +/- 1.2 16.9 +/- 0.8 17.3 +/- 1.2 17.9 +/- 1.0 D-8 20.2 +/- 0.7 21.2 +/- 1.3 21.8 +/- 0.7 21.7 +/- 1.5 D-1 0 18.4 +/- 0.9 12.8 +/- 0.9 19.3 +/- 1.2 12.7 +/- 1.1 D-11 16.2 +/- 0.6 15,8 +/- 1.9 16.2 +/- 0.7 16.5 +/- 2.1 D-13 (C) 18.0 +/- 1.2 17.2 +/- 0.8 18.2 +/- 0.7 17.2 +/- 1.2 D-1 5 17.1 +/- 1.2 15.4 +/- 0.7 17.2 +/- 1.1 16.6 +/- 1.2 D-1 6 18.8 +/- 0.8 17.5 +/- 1.9 20.1 +/- 0.8 17.8 +/- 2.1 Mean +/- s.d. 17.5 +/- 1.2 16.7 +/- 2.2 18.8 +/- 1.9 16.9 +/- 2.5 Within 0.5 mi. of Stack D-1 7 21.0 +/- 0.9 16.4 +/- 1.0 21.3 +/- 1.3 19.7 +/- 1.9 D-1 8 18.5 +/- 1.3 15.7 +/- 1.5 18.2 +/- 1.2 18.1 +/- 1.8 D-1 9 17.8 +/- 0.9 15.5 +/- 1.2 17.3 +/- 0.9 17.8 +/- 1.4 D-20 19.3 +/- 0.9 18.3 +/- 0.9 19.8 +/- 0.9 21.0 +/- 1.6 D-21 20.4 +/- 0.9 18.1 +/- 1.2 18.9 +/- 0.7 20.0 +/- 1.4 D-22 18.7 +/- 1.0 16.3 +/- 0.8 18.6 +/- 0.8 17.5 +/- 1.0 D-23 17.0 +/- 0.9 16.1 +/- 1.9 16.3 +/- 0.9 18.2 +/- 1.4 D-28 21.7 +/- 1.0 20.5 +/- 0.9 21.4 +/- 1.1 23.0 +/- 1.3 D-29 23.1 +/- 0.8 21.2 +/- 1.1 22.2 +/- 0.7 25.1 +/- 1.5 D-30 23.2 +/- 1.1 19.0 +/- 1.3 22.1 +/-0.8 22.2 +/- 1.6 D-31 22.9 +/- 1.2 22.9 +/- 1.3 21.2 +/- 1.3 25.5 +/- 1.7 D-32 23.4 +/-0.7 19.1 +/- 1.3 23.0 +/- 0.7 22.8 +/- 1.9 D-82 17.3 +/- 0.8 12.5 +/- 0.7 16.6 +/- 0.8 15.0 +/- 1.0 D-83 18.8 +/-0.7 15.5 +/- 0.7 18.7 +/- 0.8 18.0 +/- 1.2 D-84 19.0 +/- 1.1 15.4 +/- 1.0 18.2 +/- 1.0 17.9 +/- 1.2 D-85 19.2 +/-0.7 15.9 +/- 1.4 19.4 +/- 1.0 17.4 +/- 1.3 D-86 21.4 +/- 1.3 16.9 +/- 1.0 20.5 +/- 1.1 .19.2 +/- 1.4 D-91 16.4 +/- 0.9 14.9 +/- 0.9 16.6 +/- 0.8 15.9 +/- 1.5 Mean +/- s.d. 20.0 +/- 2.3 17.2 +/- 2.6 19.5 +/- 2.1 19.7 +/- 3.0 a"'ND" = No data; TLD missing.

10-1

DUANE ARNOLD Table 10. Area monitors (TLD), Quarterly Units: mR/91 days Within 1.0 mi. of 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Stack D-43 17.8 +/- 0.8 14.8 +/- 0.8 18.2 +/- 0.9 18.1 +/-1.2 D-44 21.2 +/- 1.0 18.3 +/- 0.9 22.2 +/- 1.0 23.5 + 1.1 D-45 18.3 +/- 1.6 14.2 +/- 1.1 17.7 +/- 0.9 17.3 +/- 1.7 D-46 20.7 +/- 1.9 19.5 +/- 1.1 22.5 +/- 1.3 23.7 +/- 1.6 D-47 20.6 +/- 0.8 18.1 +/- 1.0 20.5 +/- 0.8 22.9 +/- 1.2 D-48 21.3 +/- 0.7 20.0 +/- 1.4 23.0 +/- 0.7 23.9 +/- 1.7 Mean +/- s.d. 20.0 +/- 1.5 17.5 +/- 24 20.7 +/- 2.3 21.6 +/-3.0 Within 3.0 mi. of Stack D-33 16.0 +/- 0.8 14.3 +/- 0.7 16.3 +/- 1.0 17.1 +/- 0.9 D-34 16.8 +/- 0.7 13.5 +/- 1.1 16.8 +/- 0.9 15.4 +/- 1.3 D-35 16.7 +/- 0.9 13.6 +/-0 .7 16.6 +/- 0.7 16.6 +/- 1.3 D-36 17.3 +/- 1.0 15.7 +/- 0.8 17.6 +/- 1.0 18.9 +/- 1.4 D-37 21.9 +/- 1.2 19.5 +/- 2.2 21.7 +/- 1.2 22.7 +/- 2.8 D-38 19.6 +/- 1.1 17.2 +/- 1.0 20.3 +/- 1.0 19.8 +/- 1.3 D-39 19.9 +/- 1.0 16.9 +/- 0.7 20.5 +/- 1.1 20.3 +/- 1.1 D-40 16.0 +/- 0.8 14.7 +/- 0.8 15.9 +/- 0.8 17.4 +/- 1.1 D-41 17.5 +/- 1.0 14.3 +/- 0.9 18.4 +/- 1.0 16.9 +/- 1.2 D-42 16.6 +/- 0.8 13.7 +/- 1.2 16.3 +/- 0.8 16.5 +/- 1.7 Mean +/- s.d. 17.8 +/- 2.0 15.3 +/- 2.0 18.0 +/- 2.1 18.2 +/- 2.2 10-2

DUANE ARNOLD Table 11. Milk samples, analyses for iodine-1 31 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-96 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-04-06 NSa -

Location D-101 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-04-06 NSa -

a NS= No sample; sample not available. See Table 2.0, "Listing of Missed Samples."

11-1

DUANE ARNOLD Table 11. Milk samples, analyses for iodine-1 31 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 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134. Cs-137 Ba-140 La-140 01-04-06 DMI -90 < 0.5 1417 +/- 109 <5 <5 < 60 <5 02-07-06 DMI -640 < 0.5 1525 +/- 112 <5 <5 < 60 <5 03-07-06 DMI -1220 <0.5 1357 +/- 119 <5 <5 <60 <5 04-04-06 DMI -2037 < 0.5 1313 +/- 183 <5 <5 < 60 <5 05-02-06 DMI -3022 < 0.5 1139 +/- 103 <5 <5 < 60 <5 05-16-06 DMI -3274 <0.5 1229 +/- 110 <5 <5 <60 <5 05-31-06 DMI -3553. <0.5 1156 +/- 110 <5 <5 <60 <5 06-13-06 DMI.-3925 < 0.5 1657 +/- 137 <5 <5 < 60 <5 06-26-06 DMI -4224 <0.5 1317 +/-116 <5 <5 <60 <5 07-11-06 DMI -4605 <0.5 1463 +/-105 <5 <5 <60 <5 07-25-06 DMI -5060 < 0.5 1202 +/- 109 <5 <5 < 60 <5 08-08-06 DMI -5378 < 0.5 1447 +/- 113 <5 <5 < 60 <5 08-22-06 DMI -5752 < 0.5 1482 +/- 133 <5 <5 < 60 <5 09-06-06 DMI -6099 < 0.5 1358 +/- 167 <5 <5 < 60 <5 09-19-06 DMI -6410 <0.5 1358 +/-121 <5 <5 <60 <5 10-03-06 DMI -6783 < 0.5 .1419 +/- 120 <5 <5 < 60 <5 11-07-06 DMI -8088 <0.5 1200 +/-98 <5 <5 <60 <5 12-05-06 DMI -8752 <0.5 1576 +/- 117 <5 <5 <60 <5 Location D-109 Date Lab Concentration (pCi/L)

Collected Code 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 01-04-06 DMI -91 < 0.5 1258 +/- 104 <5 <5 <60 <5 02-07-06 DMI -641 <0.5 1240+/-111 <5 <5 <60 <5 03-07-06 DMI -1221 <0.5 1281 +/-116 <5 <5 <60 <5 04-04-06 DMI -2038 < 0.5 1333 +/- 170 <5 <5 <60 <5 05-02-06 DMI -3023 < 0.5 1289 +/- 116 <5 <5 <60 <5 05-16-06 DMI -3275 <0.5 1307+/-117 <5 <5 <60 <5 05-31-06 DMI -3554 < 0.5 1302 +/- 103 <5 <5 <60 <5 06-13-06 DMI -3926 < 0.5 1267 +/- 124 <5 <5 <60 <5 06-26-06 DMI -4225 <0.5 1414+/-119 <5 <5 <60 <5 07-11-06 DMI -4606 <0.5 1439+/-119 <5 <5 <60 <5 07-25-06 DMI -5061 <0.5 1370+/-118 <5 <5 <60 <5 08-08-06 DMI -5379 <0.5 1152+/-110 <5 <5 <60 <5 08-22-06 DMI -5753 <0.5 1356+/-116 <5 <5 <60 <5 09-06-06 DMI -6100 < 0.5 1328 +/- 120 <5 <5 <60 <5 09-19-06 DMI -6411 < 0.5 1302 +/- 127 <5 <5 <60 <5 10-03-06 DMI -6784 < 0.5 1203 +/- 125 <5 <5 <60 <5 11-07-06 DMI -8089 < 0.5 1260 +/- 107 <5 <5 <60 <5 12-05-06 DMI -8753 <0.5 1263+/-110 <5 <5 <60 <5 11-2

DUANE ARNOLD Table 12.1. Well water samples, analyses for gross beta and tritium.

Collection: Quarterly Units: pCi/L Location D-53 Treated Municipal Water Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1 502 DWW-4287 DWW-6631 DWW-9145 Gross Beta 1.4 +/- 0.4 1.5 +/- 0.6 3.7 +/- 0.8 3.6 +/- 0.7 H-3 < 182 < 144 < 193 < 173 Location D-54 Inlet to Municipal Water Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1503 DWW-4288 DWW-6632 DWW-9146 Gross Beta 5.1 +/- 0.6 2.7 +/- 0.6 3.5 +/- 0.6 4.0 +/- 0.8 H-3 < 182 < 166 < 193 < 173 Location D-55 On-site Well Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1 504 DWW-4289 DWW-6633 DWW-9147 Gross Beta < 0.5 < 1.2 < 1.2 < 1.2 H-3 < 182 < 166 < 193 < 173 Location D-57 Bull Farm Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1 505 DWW-4153 DWW-6634 DWW-9148 Gross Beta < 0.5 0.5 +/- 0.3 2.0 +/- 0.6 1.2 +/- 0.6 H-3 < 182 < 141 < 193 < 173 Location D-58 Franz Farm Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1506 DWW-4154 DWW-6635 DWW-9149 Gross Beta 2.5 +/- 0.5 3.4 +/- 0.5 5.0 +/- 0.8 5.7 +/- 0.9 H-3 < 182 < 141 < 193 < 173 Location D-72 Van Note Farm Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DWW-1 507 DWW-4290 DWW-6636 DWW-9150 Gross Beta < 0.5 < 1.1 < 1.3 < 1.3 H-3 < 182 < 166 < 193 < 173 12-1

Table 12.2. Ground water, Monitoring wells, analyses for gross beta and tritium.

Collection: Quarterly Units: pCi/L Period 1st Qtr. a 2nd Qtr. a -3rd Qtr. 4th Qtr.

Location MW-O1A (shallow)

Lab Code DWW-6637 DWW-9151 Gross Beta 4.3 1 0.7 4.7 +/- 0.8 H-3 473 +/- 114 504 +/- 94 Location MW-01B (intermediate)

Lab Code DWW-6638 DWW-9152 Gross Beta 2.4 +/- 0.7 1.9 +/- 0.6 H-3 < 185 < 144 Location MW-02A (shallow)

  • Lab Code DWW-6639, 40 DWW-9153 Gross Beta 3.4 +/- 0.5 6.0 +/- 0.8 H-3 < 185 < 144 Location MW-02B (intermediate)

Lab Code DWW-6641 DWW-9154 Gross Beta 2.4 +/- 0.6 1.4 +/- 0.6 H-3 < 185 < 144 Location MW-03A (shallow)

Lab Code - DWW-6642 DWW-9155 Gross Beta 4.4 +/- 0.8 3.4 +/- 0.7 H-3 < 185. < 144 Location MW-03B (intermediate)

Lab Code - DWW-6643 DWW-9156 Gross Beta 2.6 +/- 0.7 1.8 +/- 0.6 H-3 < 185 < 144 a Ground water monitoring of six on-site wells was added to the REMP in the third quarter, 2006, for analysis of gross beta and tritium. Analyses for strontium-89, strontium-90 and gamma emitting isotopes will be performed if the gross beta activity exceeds ten times the yearly mean of the potable water well control.

12-2

DUANE ARNOLD Table 13. Vegetation (broadleaf), analyses for iodine-131 and other gamma-emitting isotopes.

Collection: Annually Units: pCig wet D-57 D-58a D-72 D-96a Location Lab Code DVE-6942 DVE-6943 Date Collected 10/2/2006 10/2/2006 Sample Type Broad Leaf Broad Leaf K-40 6.73 +/- 0.68 6.77 +/- 0.59 Mn-54 < 0.018 < 0.016 Co-58 < 0.014 < 0.018 Co-60 < 0.019 < 0.011 Nb-95 < 0.028 < 0.017 Zr-95 < 0.049 < 0.036 Ru-103 < 0.036 < 0.019 Ru-1 06 < 0.28 < 0.07 1-131 < 0.045 < 0.030 Cs-1 34 < 0.023 < 0.016 Cs-137 < 0.021 < 0.014 Ce-141 < 0.063 < 0.031 Ce-144 < 0.16 < 0.12 Location D-109a D-108 (C)

Lab Code DVE-5636 Date Collected 8/15/2006 Sample Type Broad Leaf K-40 6.29 +/- 0.88 Mn-54 < 0.030 Co-ý58 < 0.043 Co-60 < 0.057 Nb-95 < 0.039 Zr-95 < 0.11 Ru-103 < 0.039 Ru-106 < 0.21 1-131 < 0.060 Cs-1 34 < 0.027 Cs-1 37 < 0.030 Ce-1 41 < 0.074 Ce-144 < 0.24 a No sample; see Table 2.0, "Listing of Missed Samples."

13-1

DUANE ARNOLD Table 14. Vegetation (hay and grain), analyses for gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet I tnc.~tinn D-168 D1l6 D-57 D-57 D-58 a Location D-1 6 Dw-l 6 Lab Code DVE-6932 DVE-6936 DVE-6933 DVE-6937 Date Collected 10/2/2006 10/2/2006 10/2/2006 10/2/2006 Sample Type Forage Soybeans Forage Corn K-40 2.42 +/- 1.53 13.63 +/- 0.80 1.97 +/- 1.78 3.47 +/- 0.36 Mn-54 < 0.068 < 0.023 < 0.055 < 0.009 Co-58 < 0.072 < 0.014 < 0.058 < 0.010 Co-60 < 0.072 < 0.024 < 0.046 < 0.010 Nb-95 < 0.077 < 0.023 < 0.067 < 0.014 Zr-95 < 0.10 < 0.041 < 0.17 < 0.013 Ru-1 03 < 0.073 < 0.022 < 0.044 < 0.016 Ru-1 06 < 0.31 < 0.11 < 0.45 < 0.082 Cs-I 34 < 0.046 < 0.018 < 0.057 < 0.010 Cs-I 37 < 0.055 < 0.018 < 0.057 < 0.013 Ce-141 < 0.13 < 0.034 < 0.084 < 0.027 Ce-1 44 < 0.40

  • 0.12 < 0.30 < 0.10 D-72 D-72 D-96a D-96a Location D-58 Lab Code DVE-6938 DVE-6934 DVE-6939 Date Collected 10/2/2006 10/2/2006 10/2/2006 Sample Type Corn Forage Corn K-40 2.71 +/- 0.25 2.04 +/- 0.89 3.37 +/- 0.41 Mn-54 < 0.007 < 0.035 < 0.010 Co-58 < 0.006 < 0.029 < 0.010 Co-60 < 0.008 < 0.039 < 0.010 Nb-95 < 0.008 < 0.032 < 0.019 Zr-95 < 0.015 < 0.091 < 0.018 Ru-1 03 < 0.008 < 0.034 < 0.016 Ru-106 < 0.052 <.0.37 < 0.080 Cs-134 < 0.007 < 0.033 < 0.010 Cs-137 < 0.008 < 0.042 < 0.011 Ce-141 < 0.017 < 0.051 < 0.029 Ce-1 44 < 0.049 < 0.20 < 0.075 a "NS" = No sample; see Table 2.0, "Listing of Missed Samples."

14-1

DUANE ARNOLD Table 14. Vegetation (hay and grain), analyses for gamma-emitting isotopes.

Collection: Annually Units: pCi/g wet Control Location D-109 D-109 D-108 D-I08 Lab Code DVE-6935 DVE-6941 DVE-5637 DVE-6940 Date Collected 10/2/2006 10/2/2006 8/15/2006 10/2/2006 Sample Type Forage Corn Hay Corn K-40 5.94 +/- 0.52 2.94 +/- 0.28 2.46 +/- 0.35 3.32 +/- 0.40 Mn-54 < 0.023 < 0.009 < 0.036 < 0.012 Co-58 < 0.023 < 0.009 < 0.027 < 0.008 Co-60 < 0.018 < 0.004 < 0.034 < 0.011 Nb-95 < 0.023 < 0.010 < 0.031 < 0.015 Zr-95 < 0.056 < 0.017 < 0.036 < 0;028 Ru-1 03 < 0.029 < 0.012 < 0.030 < 0.015 Ru-1 06 < 0.20 < 0.060 < 0.33 < 0.082 Cs-1 34 < 0.024 < 0.010 < 0.021 < 0.015 Cs-1 37 < 0.024 < 0.008 < 0.030 < 0.014 Ce-141 < 0.037 < 0.017 < 0.065 < 0.024 Ce-144 < 0.17 < 0.069 < 0.21 < 0.086 14-2

DUANE ARNOLD Table 15. Surface water samples, analyses for iodine-131, tritium and gamma-emitting isotopes.

Collectior Monthly Units: pCi/L Location: D-50 Date Collected 01-30-06 02-14-06 03-14-06 04-19-06 . 05-26-06 06-21-06 Lab Code DSW-526 DSW-792 DSW-1498 . DSW-2650 DSW-3525 DSW-4148 H-3 < 167 < 167 < .166 < 165 < 133 < 141 Mn-54 <10 <10 <10 <10 <10 <10 Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 <15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 <15 <15 <15 <15 <15 <15 Cs-1 34 <10 <10 <10 <10 <10 <10 Cs-1 37 <10 <10 <10 <10 <10 <10 Ba-1 40 < 60 < 60 < 60 < 60 < 60 < 60 La-140 <15 <15 <15 <15 <15 <15 Date Collected 07-20-06 08-15-06 09-18-06 10-30-06 11-08-06 12-14-06 Lab Code DSW-5002 DSW-5638 DSW-6515 DSW-8019 DSW-8264 DSW-9139 H-3 < 143 < 135 < 193 < 163 < 145 < 173 Mn-54 <10 < 10 <10 <10 <10 <10 Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 <15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 <15 <15 <15 <15 <15 <15 Cs-1 34 <10 <10 <10 <10 <10 <10 Cs-1 37 <10 <10 <10 <10 <10 <10 Ba-1 40 < 60 < 60 < 60 < 60 < 60 < 60 La-140 <15 <15 <15 <15 <15 <15 15-1

DUANE ARNOLD Table 15. Surface water samples, analyses for iodine-1 31, tritium and gamma-emitting isotopes.

Collectior Monthly Units: pCi/L Location: D-51 Date Collected 01-30-06 02-14-06 03-14-06 04-19-06 05-26-06 06-21-06 Lab Code DSW-527 DSW-793 DSW-1499 DSW-2651 DSW-3526 DSW-4149 H-3 < 167 < 167 < 166 < 165 < 133 < 141 Mn-54 <10 <10 <10 <10 <10 <10.

Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 <15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 <15 <15 <15 <15 <15 <15 Cs-1 34 <10 <10 <10 <10 <10 <10 Cs-1 37 <10 <10 <10 <10 <10 <10 Ba-140 < 60 < 60 < 60 < 60 < 60 < 60 La-140 <15 <15 <15 <15 <15 <15 Date Collected 07-20-06 08-15-06 09-18-06 10-30-06 11-08-06 12-14-06 Lab Code DSW-5003 DSW-5639 DSW-6516 DSW-8020 DSW-8265 DSW-9140 H-3 < 159 < 135 < 193 < 163 < 145 < 173 Mn-54 <10 < 10 <10 <10 <10 <10 Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 <15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 <15 <15 <15 <15 <15 <15

<10 *<10 <10 <10 <10 <10 Cs-1 34 Cs-137 <10 <10 <10 <10 <10 <10 Ba-140 < 60 < 60 <60 < 60 < 60 < 60 La-140 <15 <15 <15 <15 <15 <15 15-2

DUANE ARNOLD Table 15. Surface water, analyses for iodine-131, tritium and gamma-emitting isotopes.

Collection: Monthly Units: pCi/L Location: D-1 07 Date Collected 01-30-06 02-14-06 03-14-06 04-19-06 05-26-06 06-21-06 Lab Code DSW-528 DSW-794 DSW-I 500 DSW-2652 DSW-3527 DSW-4150 1

H-3 < 167 < 167 < 166 < 165 < 133 179 +/- 78 Mn-54 <10 <10 <10 <10 <10 <10 Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 < 15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 < 15 <15 <15 <15 <15 <15 Cs-134 <10 <10 <10 <10 <10 <10 Cs-137 <10 <10 <10 <10 <10 <10 Ba-140 < 60 < 60 < 60 < 60 < 60 < 60 La-140 < 15 <15 <15 <15 <15 <*15 Date Collected 07-20-06 08-15-06 09-18-06 10-30-06 11-08-06 12-14-06 Lab Code DSW-5004 DSW-5640 DSW-6517 DSW-8021 DSW-8266 DSW-9142 H-3 173 +/- 91 287 +/- 81 < 193 < 163 < 145 < 173 Mn-54 <10 <10 <10 <10 <10 <10 Fe-59 < 30 < 30 < 30 < 30 < 30 < 30 Co-58 <10 <10 <10 <10 <10 <10 Co-60 <10 <10 <10 <10 <10 <10 Zn-65 < 30 < 30 < 30 < 30 < 30 < 30 Nb-95 <15 <15 <15 <15 <15 <15 Zr-95 < 30 < 30 < 30 < 30 < 30 < 30 1-131 <15 <15 <15 <15 <15 <15 Cs-1 34 <10 <10 <10 <10 <10 <10 Cs-1 37 <10 <10 <10 <10 <10 <10 Ba-140 < 60 < 60 < 60 < 60 < 60 < 60 La-1 40 <15 <15 <15 <15 <15 <15 15-3

DUANE ARNOLD Table 15. Surface water, analyses for iodine-1 31, tritium and gamma-emitting isotopes.

Collection: Monthly Units: pCi/L Location: D-61 Date Collected 11-27-06 12-14-06 Lab Code DSW-8781a DSW-9141 H-3 < 143 < 173 Mn-54 <10 <10 Fe-59 < 30 < 30 Co-58 <10 <10 Co-60 <10 <10 Zn-65 < 30 < 30 Nb-95 <15 <15 Zr-95 < 30 < 30 1-131 <15 <15 Cs-1 34 <10 <10 Cs-1 37 <10 <10 Ba-140 < 60 < 60 La-140 <15 <15 Date Collected Lab Code 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-1 40

' New location.

15-4

DUANE ARNOLD Table 16. Surface water, analysis for tritium. a Collection: Quarterly composites of monthly samples.

Units: pCi/L Location D-50 Period 1st Qtr.

Lab Code DSW-1 508 H-3 < 151 Location D-51 Period 1st Qtr.

Lab Code DSW-1509 H-3 < 151 Location D-107 Period 1st Qtr.

Lab Code DSW-1510 H-3 < 151 a Quarterly composites discontinued, tritium analysis is done on the individual monthly samples.

16-1

DUANE ARNOLD Table 17. Fish, analyses of edible portion for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g wet Location Upstream, D-49 Lab Code DF-3942 DF-3943 DF-6785 DF-6786 Date Collected 6/9/2006 6/9/2006 9/21/2006 9/21/2006 Sample Type Carp Carpiodies sp. Carp Carpsucker K-40 3.42 +/- 0.35 2.93 +/- 0.41 3.27 +/- 0.38 3.45 +/- 0.43 Mn-54 <*0.011 < 0.007 < 0.012 < 0.017 Fe-59 < 0.018 < 0.009 < 0.024 < 0.049 Co-58 < 0.006 < 0.009 < 0.015 < 0.018 Co-60 < 0.008 < 0.012 < 0.013 < 0.018 Zn-65 < 0.027 < 0.025 < 0.022 < 0.031 Nb-95 *<0.019 < 0.019 < 0.025 < 0.025 Zr-95 < 0.028 < 0.041 < 0.022 < 0.048 Ru-1 03 < 0.013 < 0.024 < 0.020 < 0.014 Ru-1 06 <. 0.084 < 0.11 < 0.11 < 0.14 Cs-1 34 < 0.012 < 0.013 < 0.006 < 0.011 Cs-1 37 < 0.013 < 0.016 < 0.014 < 0.017 Ce-141 < 0.018 < 0.032 < 0.035 < 0.045 Ce-1 44 < 0.051 < 0.11 < 0.066 < 0.084 Location Downstream, D-61 Lab Code DF-3944 DF-3945 DF-6787 DF-6788 Date Collected 6/9/2006 6/9/2006 9/21/2006 9/21/2006 Sample Type Carp Moxostoma sp. Carp Carpsucker K-40 2.92 +/- 0.37 3.50 +/- 0.51 3.31 +/- 0.41 3.04 +/- 0.43 Mn-54 < 0.009 < 0.012 < 0.013 < 0.014 Fe-59 < 0.011 < 0.035 < 0.023 < 0.037 Co-58 < 0.013 < 0.017 < 0.019 < 0.015 Co-60 < 0.020 < 0.016 < 0.009 < 0.015 Zn-65 < 0.026 < 0.018 < 0.042 < 0.028 Nb-95 < 0.024 < 0.022 < 0.011 < 0.022 Zr-95 < 0.028 < 0.026 < 0.030 < 0.047 Ru-1 03 < 0.021 < 0.013 < 0.027. < 0.028 Ru-1 06 < 0.10 < 0.16 < 0.085 < 0.15.

Cs-134 < 0.017 < 0.014 < 0.015 < 0.012 Cs-137 < 0.021 < 0.022 < 0.012 < 0.024 Ce-1 41 < 0.045 < 0:025 < 0.041 < 0.061 Ce-144 < 0.12 < 0.15 < 0.096 < 0.13 17-1

DUANE ARNOLD Table 18. River sediment, analysis for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g dry Location D-50 Lab Code DBS-5024 DBS-6412 Date Collected 7/1912006 9/18/2006 K-40 8.60 + 0.62 9.68 +/- 0.50 Mn-54 0.015 < 0.014 Fe-59 0.038 < 0.028 Co-58 0.019 < 0.012 Co-60 0.012 < 0.015 Zn-65 0.038 < 0.041 Nb-95 0.017 < 0.017 Zr-95 0.025 < 0.016 Ru-1 03 0.024 < 0.010 Ru-1 06 0.11 < 0.12 Cs-i 34 0.013 < 0.021 Cs-137 0.033+/- 0.019 < 0.015 Ce-1 41 0.045 < 0.018 Ce-1 44 0.12 < 0.049 Location D-51 Lab Code DBS-5025 DBS-6413 Date Collected 7/19/2006 9/18/2006 K-40 8.73 +/- 0.58 8.89 +/- 0.53 Mn-54 < 0.012 < 0.017 Fe-59 < 0.032 < 0.019 Co-58 < 0.015 < 0.017 Co-60 < 0.008 < 0.019 Zn-65 < 0,037 < 0.036 Nb-95 < 0.015 < 0.017 Zr-95 < 0.020 < 0.032 Ru-103 < 0.013 < 0.013 Ru-1 06 < 0.12 < 0.17, Cs-134 < 0.011 < 0.025 Cs-137 < 0.021 < 0.019 Ce-141 < 0.020 < 0.030 Ce-144 < 0.12 < 0.066 18-1

DUANE ARNOLD Table 18. River sediment, analysis for gamma-emitting isotopes.

Collection: Semiannually Units: pCi/g dry Location D-107 Lab Code DBS-5026 DBS-6414 Date Collected 7/19/2006 9/18/2006 K-40 5.51 +/- 0.45 4.86 +/- 0.35 Mn-54 < 0.008 < 0.010 Fe-59 < 0.018 < 0.019 Co-58 < 0.019 < 0.012 Co-60 < 0.009 < 0.014 Zn-65 < 0.026 < 0.028 Nb-95 < 0.027 < 0.011 Zr-95 < 0.022 < 0.021 Ru-1 03 < 0.013 < 0.011 Ru-106 < 0.065 < 0.12 Cs-134 < 0.009 < 0.015 Cs-1 37 < 0.016 < 0.013 Ce-141 < 0.037 < 0.018 Ce- 144 < 0.063 < 0.072 18-2

DUANE ARNOLD Table 19. Precipitation, analyses for gamma emitting isotopes.

Collection: Monthly Units: pCi/L Location: DAEC Date Collected 01-26-06 02-14-06 03-16-06 04-28-06 05-26-06 06-21-06 Lab Code DP-529a DP-795 DP-1501 DP-2907a DP-3528 DP-4151, 2 Mn-54 <1 5.7 < 11.2 <3.1 *<12.4 <4.1 < 3.0

< 20.8 < 18.2 <4.1 < 26.2 < 4.4 < 3.2 Fe-59

< 12.2 <7.0 <4.3 <1 2.2 <3.5 <3.1 Co-58

< 16.9 < 13.4 < 3.8 < 14.1 < 4.4 < 2.8 Co-60

<23.8 < 22.0 <6.3 < 30.3 < 6.4 <4.9 Zn-65

< 11.4 < 4.9 < 19.2 <3.8

  • 3.0

-Nb-95 < 13.5

< 31.8 < 10.7 < 9.7 < 33.5 <7.1 <4.3 Zr-95

< 29.3 < 13.5 < 8.5 < 35.7 <6.4 < 5.0 1-131

< 22.5 < 3.9 < 13.9 < 3.6 < 3.0 Cs-134 < 16.8

< 16.5 < 10.2 < 3.7 < 15.2 < 3.3 < 2.9 Cs-1 37

< 98.3 < 58.4 < 24.7 < 105.2 < 13.8 < 10.1 Ba-140

< 12.4 < 8.4 < 2.8 <25.6 < 4.8 <2.1 La-140 Date Collected 07-20-06 08-17-06 09-21-06 10-27-06 11-09-06 12-14-06 Lab Code DP-5005 DP-5641 DP-6518 DP-8022 DP-8267 DP-9143,4 Mn-54 < 4.2 < 1.8 <5.1 < 9.8 < 5.0 < 5.9

< 5.4 < 3.9 < 12.1 < 14.0 < 10.1 < 7.2 Fe-.59

<2.0 < 2.4 < 5.3 <4.6 < 3.3 < 3.2 Co-58

< 3.2 < 2.8 < 5.6 <7.0 <5.1 < 5.6 Co-60

<2.5 < 9.2 < 10.0 < 9.7 < 6.7 < 4.6 Zn-65

< 3.8 <5.1 <6.9 <9.4 < 5.6 <*4.4 Nb-95

< 5.4 < 10.0 < 15.9 < 14.2 < 14.4 <7.5 Zr-95

.<4.2 < 5.0 < 12.4 < 25.4 <*16.2 < 8.7 1-131

<1.8 < 3.9 < 5.5 < 7.0 < 6.9 <4.4 Cs-134

< 3.9 <4.1 < 5.8 <7.7 < 7.4 < 5.2 Cs-137

< 13.7 < 14.2 < 33.1 < 48.8 < 22.2 <23.6 Ba-140

< 1.6 <3.1 < 6.3 < 8.0 <8.6 < 3.7 La-140 a LLDs not reached due to small sample size (100 mL.); sample counted 120,000 sec.

19-1

DUANE ARNOLD Table 20.. Precipitation, analysis for tritium.

Collection: Quarterly composites of monthly samples.

Units: pCi/L Location Duane Arnold Period 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Lab Code DP-1 511 DP-4532 DP-7422 DP-9508 H-3 < 182 < 131 < 161 < 152 20-1

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

Collection: Annually Units: pCi/g dry Location D-1 5 D-1 6 Lab Code DSO-8779 DSO-8780 Date Collected 12/5/2006 12/5/2006 Sr-90 < 0.013 < 0.016 K-40 9.83 +/- 0.75 14.63 +/- 1.00 Mn-54 < 0.016 < 0.035 Fe-59 < 0.050 < 0.046 Co-58 < 0.026 < 0.038 Co-60 < 0.009 < 0.025 zn-65 < 0.064 < 0.082 Nb-95 < 0.020 < 0.034 Zr-95 < 0.021 < 0.037 Ru-1 03 < 0.013 < 0.034 Ru-1 06 < 0.14 < 0.31 Cs-i 34 < 0.031 < 0.049 Cs-137 0.13 +/- 0.028 < 0.037 Ce-141 < 0.033 < 0.053 Ce-1 44 < 0.12 < 0.23 21-1

APPENDIX A SUPPLEMENTAL ANALYSES

A-1. Supplemental Analyses, Precipitation, analysis for tritium.

Sample Collection Concentration (pCi/L)

Description Date H-3 Petroleum Pad 10/11/2006 181 +/- 98 NE Corner of Pumphouse 10/11/2006 674 +/- 115 East of Transformer Pit 10/11/2006 759 +/- 117 SE of Diesel Fuel Drive Thru 10/11/2006 787 +/- 118 South of CST Pit @ Fire Hydrant 10/11/2006 475 +/- 108 SW Corner of LLRW@Fire Hydrant 10/11/2006 < 173 North of Rx Building 10/11/2006 < 173 West of DAC Parking Lot 10/11/2006 < 161 Sewage Plant 10/11/2006 < 161 Cooling Tower Monitoring 10/11/2006 < 161 MW-02 B (Hydrogen Pad) 10/11/2006 435 +/- 113 Chainlink Fence 10/11/2006 < 162 Overflow Parking Lot 10/11/2006 < 162 Rain #1 10/19/2006 < 138 Rain #2 10/19/2006 375 +/- 86 Rain #3 10/19/2006 716 +/- 99 Rain #4 10/19/2006 2666 +/- 154 Rain #5 10/19/2006 1482 +/- 123 Rain #6 10/19/2006 < 138 Rain #7 10/19/2006 1334 +/- 119 Rain #8 10/19/2006 716 +/- 99 Rain #9 10/19/2006 158 +/- 76 Rain #10 10/19/2006 < 138 Rain #11 10/19/2006 471 +/- 90 Rain #12 10/19/2006 359 +/- 85 Rain #13 10/19/2006 < 138 Rain #14 10/19/2006 < 138 A-2

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