ML20214P040
| ML20214P040 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 02/05/1987 |
| From: | Huebner L TELEDYNE ISOTOPES |
| To: | |
| Shared Package | |
| ML20214N899 | List: |
| References | |
| NUDOCS 8706030183 | |
| Download: ML20214P040 (82) | |
Text
{{#Wiki_filter:_ _. WTELEEWNE ISOTOPES i ,_ _ inne hicwtAos no. NORTH 8 ROOK, tL 800834tst ainse*meo MONTHLY PROGRESS REPORT TO CONSUMERS POWER COMPANY I JACKSON, MICHIGAN i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM FOR BIG ROCK POINT NUCLEAR GENERATING PLANT PREPARED AND SUBMITTED BY TELEDYNE ISOTOPES MIDWEST LABORATORY Project No: 8022 Reporting Period: January - December, 1986 Approved by: (/ '
. Date 4/f/f7
//
{/L.G.Huebner General Manager Distribution: T. P. Neal (1 copy) R. L. Burdette (1 copy) lpf0$00!!ISOS$55 R PDR
BIG ROCK POINT TABLE OF CONTENTS Section Pg List of Tables ....................... iii
- 1. 0 Introduction ........................ 1
- 2. 0 Li s ti ng of Mi ssed Samp les . . . . . . . . . . . . . . . . . . 2 .
Appendices A- Interlaboratory Comparison Program Results ......... A-1 4 8 Data Reporting Conventions ................. 8-1
. C Elevated Airborne Iodine-131 Activity Resulting from Chernobyl Nuclear Plant Accident (USSR)
April 26, 1986 ...................... C-1 [ 11
816 ROCK POINT i LIST OF TA8LES No.a fj$$. 1 Airborne Particulates and Indine-131, Locations ST, NM , C H , and SL . . . . . . . . . . . . . . . . . . . . . 4 2 Airborne Particulates and Iodine-131, Locations PT, BC , an d TR . . . . . . . . . . . . . . . . . . . . . . . 8 3 Gamma-Radiation, as Measured by TLDs, Monthly Exposure . . . 12 4 Gasmia Radiation, as Measured by TLDs, Quarterly Exposure . . 14 5 Gamma Radiation, as MeasureN by TLDs, Annual Exposure . . . . 15 6 Lake Water, Inlet and DischaNge . . . . . . . . . . . . . . . 16 7 Drinking Lake Water . . . . . . . . . . . . . . . . . . . . . 17 8 Well Water ......................... 18 9 Milk ............................. 19 10 Fish ............................ 21 $ 11 Crayfish .......................... 23 1 12 Periphyton ......................... 24 13 Al g ae . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 14 Bottom Sediments . . .................... 27 15 Vegetation ......................... 28 16 Reactor Effluent Samples 16.1 Liquid Radwaste . . . . . . . . . . . . . . . . . . . . 29 16.2 Stack Filters . . . . . . . . . . . . . . . . . . . . . 31 17 Special Samples 17.1 NRC Split Samples . . . . . . . . . . . . . . . . . . . 32 i ii _ _ _ _ _ _ - - - _ _ ~ , , ,_.,_.,,._.._,_.,.,,_,.,w,,,, . , .. .y,, % ,m,_,,., ,__ -_.,,,,,,..,_9.,, v.. __, y, w---_. - m ,_ , , _ , ,.,p ,.y,.
BIG ROCK POINT i
- 1. 0 INTRODUCTION The following consititutes the current Monthly Progress Report for the Radio-logical Environmental Monitoring Program conducted at the Big Rock Point .
Nuclear Generating Plant, Big Rock, Michigan. Results of cogleted analyses are presented in the attached tables. Missing entries indicate analyses that are not cogleted and the results will appear in subsequent reports. Data obtained in the program are well within the ranges previously encountered in the program and to be expected in the environmental media sagled. None of the media sagled this month contained radioactivity attributable to the operation of Big Rock Nuclear Generating Plant. For all gamma isotopic analyses, spectrum is coguter scanned from 80 to 2048 kev. Specifically included are Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, 2-95, I-131, Ba-La-140, Cs-134, and Cs-137. Naturally-occurring gamma-emitters, such as K-40 and Ra daughters, are frequently detected but not listed here. Data listed as "<" are at the 4.66 signa level, others are 2 sigma. All concentrations, except gross beta, are decay corrected to the time of collection. Deviations from Scheduled Sampling All sagles were collected within the scheduled period unless noted otherwise in the Listing of Missed Sagles. 1
'~
___.._J_-___ . -_ . ._ : : : L _. _ ..__ _ __ - . . L : _ - .___~J - ._:_.. L - . _ _ _ , - - - -
BIG ROCK POINT 2.0 LISTING OF MISSED SAMPLES-i Expected Collection Sample Type Location Date Reason Radwaste -- Apr., 86 Sample unavailable. Sept., 86 1 l i NOTE: Page 3 is intentionally left out. 2 l l
4 BIG ROCK POINT ) \ 1 Table 1. Airborne Particulates and Iodine-131a 4 6 Collection:2 Units: 10- pCi/m Week 1 i ST-8IG ROCK POINT (1) NM-8IG ROCK POINT (2) CH-CHARLEVOIX (3) SL-S. OF SUSAN LK (4) Collection Gross Gross Vol y Gross Vol m Gross ! Date Vol (m3 p) Beta Voly) (m3 Beta (m3) Beta (mJ) Beta
, 01-09-86 216 1.8i0.4 216 1.6i0.4 215 1.9*0.4 222 1.860.4 01-16-86 225 1.8t0.4 221 .2.1*0.4 220 2.1*0.4 230 2.2*0.4 01-23-86 220 2.3i0.4 219 2.9*0.4 218 2.9*0.4 217 2.4*0.4 2.3*0.4 01-30-86 219 2.1*0.4 218 1.8t0.4 209 2.210.4 235 1 4 02-06-86 221 1.7t0.4 222 1.9i0.4 220 1. 7*0. 4 229 1.6i0.4 I 02-13-86 223 2.1*0.4 220 1.710.4 218 2.210.4 226 1.9*0.4 1 -
02-20-86 218 3.3i0.5 217 2.6i0.4 218 2.5*0.4 227 3.4t0.5
! 02-27-86 221 2.6i0.4 219 2.2i0.4 219 1.410.4 227 2.210.4 i! 03-06-86 03-13-86 225 216 2.4i0.4 1.2*0.4 223 214 1.4i0.4 1.3i0.4 224 213 2.0t0.4 0.8t0.4 230 217 2.1*0.4-1.lt0.4 l
l, 03-20-86 218 1.2i0.4 221 1.4i0.4 222 1.6t0.4 234 1.9*0.4 1 03-27-86 227 2.0i0.4 225 1.5*0.4 224 1.7 0.4 232 1.210.3 04-03-86 229 1.9*0.4 227 1.8*0.4 228 1.8*0.4 233 1.9*0.4 1st Qtr. mean i s.d. 2.0*0.6 1. 9*0. 5 1.9i0.5 2.0t0.6 4
- Iodine-131 concentrations are <0.07 pC1/m3 unless noted otherwise.
i t
BIG ROCK POINT l t Table 1. Airborne Particulates and Iodine-131a (continued) ST-BIG ROCK POINT (1) NM-BIG ROCK POINT (2) CH-CHARLEVOIX (3) SL-5. OF SUSAN LK (4) l Collection Volyse Gross Gross Volyse Gross Volyne Gross i Date (m3) Beta Voly)ne (m3 Beta (m3) Beta (m3) 8 eta j 04-10-86 219 1.1*0.4 218 1.4*0.4 218 1.6i0.4 223 1.4t0.4 1 04-17-86 224 0.7i0.3 222 0.710.3 222 1.0t0.3 227 0,8t0.3 04-24-86 230 1.8t0.4 223 1. 7i0. 4 224 2.0*0.4 149b 1.1*0.5 4 05-01-86 457 1.2io.2 450 1.210.2 222 2.210.4 648c 1.8t0.2 ' 05-08-86 227 1.710.4 223 1.310.3 167b 1.9t0.5 339 1.4t0.3 , 05-15-86 223 18. lil. 0d 227 17.010.9d 215 15.9t0.9d 229 9.6t0.7d 1 05-22-86 230 17. li0. 9d 224 13.0*0.8d 215 16. 8t0. 9d 224 16. St0. 9d y, 05-29-86 233 11.210.7d 234 11.710.7d 233 10.9*0.7d 226 11.2*0. 7d l 06-05-86 224 27.6i1.1d 220 23.lil.0d 211 26.Sil.1d 221 13.ato.8d ! 06-12-86 231 2.910.4 228 2.410.4 221 4.3i0.5 227 2.2*0.4 06-19-86 227 1. 91 0. 4 226 1.410.4 221 1.010.4 223 1.9t0.4 06-26-86 227 1.4t0.4 229 1.210.3 222 1.6i0.4 225 1.210.3 ! 07-03-86 226 1.0f0.4 228 0.910.4 222 1.5i0.4 225 1.1*0.4 2nd Qtr. mean i s.d. 6.718.8 5.917.6 7.0i8.1 4. 916.2 l a Iodine-131 concentrations are <0.07 pC1/m3 unless noted otherwise in Appendix C. l Low volume due to pump malfunction. i c Elevated volume due to improper pump installation. d I Elevated gross beta activity due to fallout from Chernobyl Nuclear Plant (USSR) accident on April 26, 1986. l l
l i 1 i ! BIG ROCK POINT 1 f Table 1. Airborne Particulates and Iodine-131a (continued) ! ST-8IG ROCK POINT (1) IM-816 ROCK POINT (2) CH-CHARLEVOIX (3) SL-S. OF SUSAN LK (4) l Collection Volgme Ross Volque poss Volyse ross Ross ! Date (m3 ) Beta (m3) Beta -(m3) Beta Wolf) (m 8 eta l 07-10-86 228 1.7*0.4 232 1.8t0.4 222 1.910.4 227 1.6*0.4 i 07-17-86 233 1.1k0.4 222 <0.6 221 1.8t0.4 225 0.910.4 i 07-24-86 240 1.5t0.4 230 1.5*0.4 22b <6.2 231 1.6i0.4 07-31-86 240 1.0t0.3 233 1.4*0.4 230 1.0t0.3 232 1.d*0.4 1 08-07-86 239 1.4*0.4 232 0.7*0.3 230 1.5*0.4 232 1.4*0.4
'1.5t0.4 08-14-86 233 1.4*0.4 226 1.2*0.4 224 ' 1.220.4 227 l
m 08-21-86 235 1.2*0.3 232 1.4*0.4 23 1 2.Qt0.4 230 1.4t0.4 08-28-86 233 1.3t0.3 229 1.4t0.4 230 1.6t0.4 228 1.3t0.4 09-04-86 233 2.0t0.4 227 2.5t0.4 228 2.0t0.4 232 2.0t0.4 09-11-86 230 1.2*0.3 251 1.1*0.3 226 1.3t0.4 229 1.1*0.3 09-18-86 155 1.1*0.4 201 1.1*0.3 228 1.1*0. 3 225 1.0t0.3 09-25-86 229 1.6 0.4 225 1.6*0.4 229 1.4*0.4 222 0.9t0.3 10-02-86 234 1.7*0.4 227 1.9*0.4 233 1.3 0.3 226 1.2t0.3 3rd Qtr. mean i s.d. 1.4*0.3 1.5*0.5 1.5*0.4 1.3t0.3 Iodine-131 concentrations are (0.07 pC1/m3 unless noted otherwise. b Low volume, elevated gross beta LLD, and' iodine-131 LLD of 0.11 pC1/m3 due to pump malfunction. I l i
. - .= - _- - .. . .--.-. . . - . . - - - . .- . - -
Edward L Jardra 2 Division of Emergency Preparedness and Engineering Response l CPCo Response to IEIN 86-32 i May 14,.1986
- 4. Statistical data: a) 3.88E-4nci/m3; I sigma =20.60E-4nci/m3; (I-131 concentration) one sample i b) 8.16E-4nci/m3; I signa =tl.63E-4nci/m3; one sample-Wholabody counts were performed at our Palisades Plant on members of a Michi-gan tour. group known to have visited the Kiev, USSR, area following the Chernobyl event. (This group was in the Kiev area from the early morning of j April 30, 1986 through noon of May 2, 1986.) Spectral analyses (samma) of contaminated personal items were also carried out on May 7, 1986, and both measurements indicate the presence of a wide distribution of fission products.
4 The NRC was notified on May 7, 1986, in accordance with 10CFR50.72(b)(vi), that these measurements were made and that some internal and external radioac-tive contamination was found. The attached tables provide a summary of these
- measurements.
Table I gives a typical wholebody count result, and Table II gives very sini-lar results for a particular personal ites (a contaminated purse). We have concluded that the data for the purse differs from the wholabody count results for at least two reasons: 1) the purse was counted with laboratory equipment able to identify a larger number of nuclides, and 2) biological elimination s resulted in the purse retaining more of its initial activity than the indivi-duals themselves. Table III is a list of personal items from the tour group , that were checked for radioactive contamination. The highest contaminated items were disposed, in accordance with the owners' requests, as Plant radio-
- active waste. None of the personal items, with the possible exception of the
! shoes which were contaminated to such a level as to yield a 32 arad/hr beta l dose, posed any potential hazard to the owners. Accordingly, Consumers Power Company health physicists concluded that radiation doses to the lungs and thyroids of the exposed individuals are not medically significant. Consumers Power Company continues to make wholabody counting services avail-able to individuals determined to have been contaminated or otherwise signifi- .
- cantly exposed to radiation from the Chernobyl event. This is being l accomplished by referral from hospitals or the Radiological Health Section of i the Department of Public Health of the State of Michigan af ter screening by l professionals employed by thess organizations.. Consumers Power Company has also volunteered to provide an additional wholebody count for any of the tour group members who chose to return within a week. These additional counts should allow us to make a better estimation of the body burden at the time of exposure, ie, the period while these individuals were in Kiev.
Kenneth W Berry (signed) f Kenneth W Berry l Director, Nuclear Licensing i CC: Director, Nuclear Reactor Regulation, US NRC Administrator, Region III, US NRC NRC Resident Inspector, Palisades / Big Rock Point i
- KWB 86-23 i
_ _ . - . . ~ . _ . _ _ . _ _ _ . . _ . _ _ . - _ _ . _ . I' TABLE 1~ TYPICAL WMU KIEV TOURIST Time of Exposure 0001 April 30 to 1200 May 2 Time of Whole Body Count N 10 AM May 7
% Max Permissible Isotope Nanocuries Body Burden Mrem Exposure Barium 140 40 1 5 nci 6.7% 49 (Lung)-
Iodine 131 98 2 22 aci 14.0% 625 (Thyroid) f. Iodine 132 38 1 18 nci 12.7% 2 (Thyroid) Zirconium 95- 21-1 13 nCi 1.3% 34 (Lung)
- ' Cesium 137 36 1 29 nCi 0.1% 2 (Whole Body) l Cesium 134 19 1 11 nCi 0.1% 2 (Whole Body) i Ruthenium 103 43 2 11 nCi 1.4% 103 (Lung) i l Tellurium 132 56 2 24 nci 1.8% 33 (Lung)
NOTE: Does not account for the decay or biological elimination of radioactive material between the time of exposure and the time i of the Whole Body Count. NOTE: This data accounts for material inhaled or injested into the body. It does not account for direct exposure to individuals in the radioactive cloud. l l f KWB 86-23 L l
l l
\
TABLE II j ISOTOPES DETECTED ON CONTAMINATED PURSE Percent of Total'(at Nuclide Half-Life uCi/ Unit Time of Count) Xe-133 5.29D 9.016E-4 1* Mo-99 66.69H 3.388E-4 0.4 Zr-95 65.50D 6.515E-3 7 Ny-239 2.35D 1.668E-3 2 Tc-99m 6.03H 3.945E-4 0.5 Nb-95 35.10D 8.700E-3 10 I-131 8.04H 2.440E-2 29 I-132' 2.28H 3.611E-3 5 Ru-103 39.60D 8.251E-3 10 Cs-134 2.06Y 8.479E-4 1 Cs-137 30.17Y 1.456E-3 2 Ba-140 12.79D 6.859E-3 8 La-140 40.22H 6.956E-3 8 J Ce-144 284.20D 4.485E-3 5 Te-132 78.00H 3.416E-3 4 Ce-141 32.50D 5.280E-3 6 I
- Single Peak Identification KWB 86-23
_ _ _ . _ . _ _ _ . _ . _ _ _ _ ~ . _ . - . _ . _ , - . . - . , _ _ _ _ . _ _ _ _ _ . . - _ _...__ _ __. _. _.__.__ _ .__.
I.
- l l BIG ROCK POINT Table 1. Airborne Particulates and Iodine-1314 (continued)
ST-816 ROCK P0 INT (1) IM-816 ROCK POINT (2) CH-CHARLEV0IX C3) SL-S. OF SUSAN LK (4) Collection ross poss poss poss Dete Volp) Beta Volp)e Beta volp)e 8 eta voly)se (m3 8 eta (m (m3 (m3 10-09-86 223 1.1*0.3 219 0.9*0.3 223 0.8t0.3 216 1.3*0.4 , ! 10-16-86 230 1.3*0.3 222 0.9t0.3 226 0.St0.3 219 1.0t0.3 l 10-23-86 223 3.9t0.5 229 3.3t0.5 223 3.5t0.5 232 3.2*0.4
- 1. 10-30-86 210 2.2*0.4 223 2.2*0.4 231 2.0t0.4 221 2.1*0.4
! 11-06-86 228 1.7*0.4 225 1.6t0.4 228 1.7*0.4 222 1.8t0.4 ;
- y 11-13-86 218 1.5*0.4 201 1.6t0.4 219 1.7*0.4 207 1.5*0.4 1.5t0.4 2.2*0.4 j 11-20-86 230 2.0t0.4 219 1.9*0.4 224 220 11-27-86 19b <6.3 221 1.2*0.4 227 1.0t0.3 217 1.5t0.4
- 12-04-86 233 1.7*0.4 223 1.8t0.4 225 0.9t0.3 222 1.5t0.4 l 12-11-86 225 1.6t0.4 216 1.6t0.4 208 1.8*0.4 90C 3.1*0.9 -
l 12-19-86 226 3.2*0.5 219 3.6t0.5 214 3.210.5 223 3.4t0.5 ' i ! 12-24-86 209 2.8t0.5 190 2.9t0.5 185 2.8t0.5 189 3.0t0.5 i 01-02-87 295 3.0t0.4 288 3.2t0.4 280 3.1*0.4 289 3.1*0.4 \. l 4th Qtr. mean i s.d. 2.2*0.9 2.1*0.9 1.9*1.0 2.2*0.8 l i l Iodine-131 concentrations are <0.07 pC1/m3 unless noted otherwise. b l' + to pump malfunction; unit ! Low volume, elevated gross beta LLD, and iodine-131 LLD of 0.20 pC1/m was replaced. c Low volume due to pump malfunction. I , 1
BIG ROCK POINT Table 2. Airborne Particulates and Iodine-131a Collection: Weekly Units: 10-2 pC1/m3 PT-PETOSKY (5) BC-BOYNE CITY (6) TR-TRAVERSE CITY (7) Collection Gross Gross Collection Voique Gross Date Volp) (m Beta Voly)ne (m3 Beta Date (m3) Beta 01-09-86 217 1.910.4 214 1.6i0.4 01-09-86 231 1.210.3 01-16-86 217 2.1i0.4 213 2.3t0.4 01-15-86 193 1.4t0.4 01-23-86 217 2.4i0.4 215 3.2i0.5 01-23-86 266 -2.5t0.4 01-30-86 216 2.010.4 215 2.0i0.4 01-29-86 192 1.410.4 . 02-06-86 219 1.9*0.4 217 2.010.4 02-06-86b 261 2.0i0.4 02-13-86 219 1.9*0.4 216 2.1i0.4 02-12-86c 196 1.9*0.4 02-20-86 214 3.210.5 214 2.610.4 02-19-86 229 2.3t0.4 02-27-86 217 2.3i0.4 216 2.3i0.4 02-26-86 229 2.310.4 03-06-86 220 2.0i0.4 219 1.8t0.4 03-06-864 265 0. 7t0. 3 03-13-86 215 1.710.4 214 1.8t0.4 03-12-86c 193 1.8t0.5 03-20-86 217 1.SiO.4 216 1.710.4 03-19-86 230 1.510.4 03-27-86 221 1.6t0.4 222 1.6t0.4 03-26-86 171 1.910.5 04-03-86 224 1.ai0.4 224 2.li0.4 04-03-86b 272 1.6*0.4 1sr Qtr. mean i s.d. 2.010.4 2.110.4 1.7i0.5 I dine-131 concentrations are <0.07 pCi/m3 unless noted otherwise. b c Pump ran eight days. Pump ran six days.
i l 8IG ROCK POINT l d j Tab,le 2. Airborne Particulates and Iodine-131 (continued)a I , l ) i Collection PT-PETOSKY L5) Volyse liross 8C-83YNE CITY (6) Eross Collection TR-TRAVERSE CITY (7) Volyse Eross J Date (m3) 8 eta Volp)e (m? Beta Date (m3) 8 eta ) ) 04-10-86 214 1.4*0.4 214 1.2*0.4 04-09-86 203 0.9t0.4 04-17-86 220 0. 9*0. 3 23b <5.5 04-16-86 226 0.9 0.3 04-24-86 217 1.5*0.4 216 1.4t0.4 04-23-86 232 1.3t0.3' 05-01-86 223 2.4t0.4 676C 2.0*0.2 04-30-86 268 2.0t0.3 05-08-86 221 1.6t0.4 345 1.2*0.2 05-07-86 .199 1.6i0.4 05-15-86 221 15.4t0.9d 220 18.8tl.0d 05-14-86 236 15.0t0.8d 05-22-86 198 13.8t0.9d 221 15.0t0.9d 05-21-86 234 16. 9*0. gd 1 05-29-86 198 12.9t0.8d 227 11.6 0.7d 05-28-86 236 12.0A0.7d
- 06-05-86 226 22.7*1.0d 220 25.8tl.1d 06-05-86 270 22.6t0.9d l' 06-12-86 233 2.7*0.4 226 2.9*0.4 06-11-86 203 2.420.4 l 06-19-86 226 1.lto.4 221 1.0t0.4 06-18-86 229 1.7*0.4 -
06-26-86 232 1.8t0.48 225 1.1*0.3e 06-25-86 229 0.910.3e 07-03-86 232 1.4*0.4 225 1.l*0.4 07-02-86 266 1.Qt0.3 : 2nd Qtr. mean i s.d. 6.1*.4 6.9*8.7 6.117.7 t l' Iodine-131 concentrations are <0.07 pCi/m3 unless noted otherwise in Appendix C. b j- Low volume, elevated gross beta LLD, and I-131 LLD of <0.20 pCi/m3 due to pimp malfunction. c Elevated volume due to improper pump installation. f d l-
- Elevated gross beta activity due to fallout from Chernobyl Nuclear Plant (USSR) accident on April 26, 1986..
i Elevated I-131 LLD of <0.8 pC1/m3 due to delay in counting. Sample counted 28.3 hours. i i I i j c
BIG ROCK POINT Table 2. Airborne Particulates and Iodine-131 (continued)a i l PT-PETOSKY (5) BC-BOYNE CITY (6) TR-TRAVERSE CITY (7) 1 Collection Volyse Gross Volyse Gross Collection Volyse Gross l Date (m3) Beta (m3) Beta Date (mJ) Beta ! 07-10-86 234 1.710.4 227 2.0io.4 07-09-86 200 1.8t0.4 1 07-17-86 230 0.9i0.3 223 1.210.4 07-16-86 229 0.6*0.3 07-24-86 234 1.6i0.4 162- 1.6i0.5 07-23-86 234 1.3i0.4 07-31-86 235 1.6i0.4 229 1.4f0.4 07-30-86 234 1.4t0.4 i 08-07-86 235 1.310.4 229 1.010.3 08-07-86 267 1.8t0.3 08-14-86 230 1.110.4 224 1.310.4 08-13-86 199 1.0t0.4
- 08-21-86 238 1.3i0.3 225 2.0t0.4 08-20-66 230 1.5t0.4 o 08-28-86 227 1.210.4 225 1.510.4 08-27-86 231 1.4*0.4 i 09-04-86 236 1.8t0.4 229 2.0i0.4 09-04-86 264 1.6*0.3 09-11-86 232 1.010.3 225 1.410.4 09-10-86 195 1.5t0.4
,' 09-18-86 227 1.1*0.3 220 1.610.3 09-17-86 228 <0.4 09-25-86 233 1.210.3 224 1.410.4 09-24-86 229 0.910.3 10-02-86 237 1.5*0.4 228 1.5*0.4 10-02-86 265 1.3*0.3 l 3rd Qtr. mean i s.d. 1.310.3 1.510.3 1.310.4 i
- Iodine-131 concentrations are <0.07 pCi/m3 unless noted otherwise.
l
BIG ROCK POINT Table 2. Airborne Particulates and Iodine-131 (continued)a i PT-PETOSKY (5) 8C-80VNE CITY (6) TR-TRAVERSE CITY (7) Collection Volque Gross Volyse Gross Collection Gross Date (mJ) 8 eta (m3) 8 eta Date volg)ee (m3 8 eta 10-09-86 227 1.2*0.3 221 1.1 0.3 10-08-86 197 1.3t0.4 10-16-86 227 1.2*0.3 219 1.3t0.4 10-15-86 225 1.1*0.3 10-23-86 232 3.2*0.4 225 3.220.5 10-22-86 228 2.8t0.4 10-30-86 231 1.9t0.4 224 2.1*0.4 10-29-86 218' 3.3t0.5 11-06-86 232 1.1*0.3 224 1.7*0.4 11-06-86 265 1.6to.3 11-13-86 226 1.3*0.4 219 1.7*0.4 .11-12-86 198 2.0t0.4 0 11-20-86 225 2.0t0.4 216 1.910.4 11-19-86 213 2.9t0.5 11-27-86 229 2.3*0.4 221 2.0t0.4 11-26-86 225 2.3t0.4 12-04-86 232 1.6*0.4 223 1.8t0.4 12-04-86 255 1.7*0.4 12-11-86 224 1.4*0.4 214 1.6t0.4 12-10-86 191 1.5*0.4 12-18-86 225 3.4*0.5 215 3.3t0.5 12-17-86 219 3.St0.5 12-24-86 197 2.1*0.5 189 2.9t0.5 12-23-86 189 2.560.5 01-02-87 299 3.0t0.4 286 3.4t0.4 12-30-86 221 1.2*0.4-4th Qtr. mean
- s.d. 2.0t0.8 2.2*0.8 2.1*0.8
- Iodine-131 concentrations are <0.07 pC1/m3 unless noted otherwise.
t l BIG ROCK POINT ; I l Table 3. Samma Radiation, as Measured by TLDs
. Exposure: Monthly 1
January February March April May June l ' Date P1 aced 01-11-86 02-05-86 03-03-86 04-02-86 04-30-86 06-04-86 - Date Removed 02-06-86 03-06-86 04-03-86 05-01-86 06-05-86 07-03-86 In-Transit (mR) 0.8t0.2 1.2t0.2 2.110.2 1.7*0.2 1.4*0.3 1.9t0.2 ) ' l Location mR/30 days net
- i I BRP-01 (ST) 21.9tl.2a 14.4*0. 4 15.410.7d 13.5tl.0e 13.3*1.00 12.210.81 i BRP-02 (NM) 3.7*0.3a 3.0t0.2b 3.310.3d 3.610.38 3.5t0.39 3.4*0.31 i
- BRP-03(CH) 3.9t0.3a 3.7t0.4b 3.8t0.3d 4.4t0.58 3.9*0.49 4.0t0.41 r I . 8RP-04 (SL) 3.8t0.3a 3.5t0.26 4.1*0.4d 4.8t0.38 4.3*0.49 4.5t0.31 !
8RP-05(PT) 3.St0.3a 3.2*0.3> 3.3t0.3d 4,1go,3e 4.0t0.39 4.0t0.21 }
- BRP-06 (8C) 3.8t0.4a 4.1*0.3% 3.8t0.3d 4.7t0.3e 3.9t0.39 4.7*0.41 l BRP-07 (TR) 4.0t0.5a 3.8t0.4b 4.0t0.4d 4.210.38 3.7*0.69 4.110.71
] j Mean i s.d. 6.4*6.9 5.1*4.1 S.3t4.4 5.643.5 5.2t0.4 5.313.1 l BRP-08 (Shield-Offsite) 3.0t0.3 3.1*0.4C 2.8t0.3 3.3t0.3f 2.9*0.4h 3.0t0.4J f l BRP-09 Onsite 3.St0.2 3.110.4 3.5t0.3 3.5to.3 3.4*0.3 3.5t0.4 1 BRP-10 Onsite 3.4*0.2 3.2*0.2 3.5*0.3 3.6t0.2 3.6t0.4 3.5t0.3 . BRP-11 Onsite 4.2*0.3. 3.6t0.2 4.2*0.3 4.4t0.3 4.4*0.4 4.2t0.3 ! BRP-12(Onsite) 4.6t0.4 3.6t0.2 4.4*0.4 4.7*0.2 4.5*0.4 4.6t0.3 ; BRP-13(Onsite) 3.8t0.3 3.4*0.2 3.7*0.2 4.3t0.4 3.7*0.3 4.1*0.3 ! l BRP-14 (Onsite) 77.1*2.6 78.0t2.4 75.4*2.2 76.8tl.8 75.8t2.8 80.9*2.3 i j BRP-15 Onsite 149.2t3.3 147.915.5 155.716.3 162.7*5.1 147.9*3.2 157.7*5.9 i BRP-16 Onsite 2.7*0.3 3.0t0.3 2.8t0.3 3.310.3 2.8t0.3 3.4*0.3 I l BRP-17 Onsite 10.0t0.2 8.7*0.4 10.6t0.3 10.1*0.6 9.4t0.3 9.8t0.3 BRP-18 (Onsite 51.1tl.2 50.lil.3 47.711.2 43.3tl.2 30.9tl.2 26.2*0.7 i Control 1 (Shield-Onsite) 1.9t0.2 2.2*0.3c 1.910.3 2.320.3f 4.lto.6h 2.3t0.3J - I Control 2 (Shield-Onsite) 2.0t0.4 2.2*0.3C 2.0t0.5 2.!1? 4f 2.0t0.4h 2.2to.33
- Placed 01-13-86; removed 02-06-86; in-transit exposure 0.8t0.2 mR. " F .+ 04-25-86; removed 06-05-86; Placed 02-06-86; removed 03-06-86; in-transit exposure 1.2t0.2 mR. in-i.ransit exposure 1.4t0.3 mR. t c Placed 02-04-86; removed 03-06-86; in-transit exposure 1.2*0.2 mR. , Placed 06-05-86; removed 07-03-86; !
d in-transit suposure 1.9*0.2 mR. Placed 03-06-86; removed 04-03-86; in-transit exposure 2.1*0.2 mR. I Placed 06-02-86; removed 07-03-06;
- Placed 04-03-86; removed 05-01-86; in-transit exposure 1.720.2 mR. l in-transit exposure 1.9*0.2 mR.
l Placed 03-31-86; removed 05-01-86; in-transit exposure 1.7*0.2 mR. l l 9 Placed 05-01-86; removed 06-05-86; in-transit exposure 1.4*0.3 mR. l l 1 , - _- ___ _ i
i i ~ ' 816 ROCK POINT Table 3. Samma Radiation, as Measured by TLDs (continued) July August September October glovember Decemoer Date Placed 07-03-86 08-06-86 09-04-86 10-02-86 11-06-86 12-04-86 ; Date Removed 08-07-86 09-04-86 10-02-86 11-06-86 12-04-86 01-02-87 In-Transit (mR) 1.5t0.3 1.3t0.2 1.8t0.2 1.7*0.3 1.4t0.2 2.4t0.3 Location mR/30 days net i 8RP-01 (ST) 12.5t0.9 13.2t0.5% 12.5t0.6 ll.5t0.5 12.8t0.5 11.5t0.7 : 8RP-02(NM) 3.9t0.3 3.4t0.3b 3.6t0.4 3.5t0.3 3.5t0.3 3.2t0.3 ! l 8RP-03(CH 3.960.3 3.8t0.3D 3.7*0.3 3.7t0.3 3.8t0.3 3.7t0.3 l 8RP-04 (St 4.5t0.3 4.4*0.3b 4.3t0.2 4.4t0.3 4.2t0.3 4.2t0.4 BRP-05 (PT 4.3t0.3 4.0t0.4b 4.0t0.3 4.0t0.3 3.9t0.3 3.510.49 i BRP-06(8C) 4.2t0.3 4.2t0.1b 4.0t0.3 4.6&0.3 4.1*0.3 4.510.4 i I 8RP-07 (TR) 4.0t0.3 3.8t0.# 4.0t0.2 4.0t0.3 3.810.3 3.810.3 g Mean t s.d. 5.3t3.2 5.3t3.5 5.2*3.2 5.1*2.8 5.2t3.4 4.9t2.9 8RP-08 (Shield-Offsite) 3.010.3a 2.9t0.3c 2.3t0.3d 2.6t0.38 2.9t0.lf 3.3t0.lh ORP-09 (Onsite) 3.4*0.2 3.220.2 4.0t0.3 3.3t0.3 3.4*0.3 3.2*0.3 BRP-10 (Onsite) 3.5t0.3 3.4t0.2 3.6t0.3 3.5t0.3 3.5*0.4 3.4t0.4 i BRP-11 (Onsite) 4.5t0.4 4.1t0.2 4.8t0.3 4.0t0.3 4.2t0.4 3. 91 0. 3 l 8RP-12(Onsite) 4.8t0.4 4.7*0.2 5.0t0.3 4.5*0.3 4.6t0.3 4.4t0.4 1 4.0t0.3 4.2t0.3 4.4*0.4 4.0t0.3 3.8t0.3 3.9t0.3 . I 8RP-13(Onsite)l BRP-14 (Onsite 78.8t2.4 84.7tl.4 75.8tl.7 71.2t2.5 60.ltl.6' 61.7tl.8 ! l 8RP-15(Onsiteh 138.lt4.6 166.4tl.7 151.2t3.5 153.0t5.5 129.4*l.8 130.862.6 l 8RP-16(Onsitej 3.0t0.3 3.3*0.2 3.3t0.3 3.3t0.3 2.9t0.3 3.2*0.3 i 8AP-17 (Onsite) 10.4t0.3 10.l*0.4 9.910.4 7.6t0.4 8.4t0.5 8.5t0.5 BRP-18 (Onsite) 31.7t0.9 31.8t0.5 33.l*1.0 29.7t2.0 32.3tl.4 26.2t0.4 Control 1 (Shield-Onsite) 1.940.3a 2.0t0.2c 1.6t0.3d 1.8t0.28 2.lt0.lf 2.6t0.1h Control 2 (Shield-Onsite) 2.0t0.5a 2.0t0.2C 1.710.3d 1.9tc.38 2.1*0.lf 2.7t0.lh Placed 06-27-86; removed 08-07-86; in-transit exposure 1.5t0.3 mR. 9 Spare used; placed 12-12-86; b Placed 08-02-86; removed 09-04-86; in-transit exposure 1.3t0.2 mR. removed 01-02-87; in-transit c , Placed 08-07-86; removed 09-04-86; in-transit exposure 1.3t0.2 mR. exposure 2.4*0.3 mR. d Placed 08-30-86; removed 10-02-86; in-transit exposure 1.8t0.2 mR. h Placed 11-24-66; removed 01-02-87;
- Placed 09-20-86: re=eved 11-06-86; in-transit exposure 1.7*0.3 mR. in-transit exposure 2.4*0.3 mR.
f i Placed 10-29-86; removed 12-04-86; in-transit exposure 1.4*0.2 mR. 1 J I __
l i j 816 ROCK POINT , I i Table 4. Gamma Radiation, as Measured by TLDs i Exposure: Quwterly , l 1st Quwter 2nd Quwter 3rd Qowter 4th Quwter Date Placed 01-11-86 04-06-86 07-03-86 10-02-86 i Date Removed 04-03-86 07-03-86 10-02-86 01-02-87 ' In-Transit (mR) 1.8t0.5 1.9t0.6 1.4*0.7 0.5e0.6 j 1 Location mR/91 days neta BRP-01 (ST) 53.6t2.4b 42.8tl.2c 42.9*1.4 32.6&1.4 BRP-02 (NM) 11.0t0.# 11.0t0.7c 12.4*0.7 10.6*0.6 ! BRP-03(CH) 11.7*0.76 12.4*0.9c 12.8t0.7 11.9*0.7 i BRP-04 (SL) 11.7*0.7b 13.4*0.7c 14.6t0.9 12.8t0.7C 13.5*0.7 12.91).0 ND BRP-05 (PT) 10.7*0.76 BRP-06 (BC) 11.8t0.64 13.lio.7C 13.7k0.8 12.2*0.7 ! BRP-07 (TR) 11.8t0.7b 11.8*0.yc 12.3t0.7 11.7*0.7 , I Mean i s.d. 17.St15.9 16.8t11.5 17.5t11.2 15.3*8.5 ; BRP-08 (Shield-Offsite) 8.4*0.8 9.0t0.7d 9.4*0.78 9.2*0.59 BRP-09 Onsite 10.2*0.7 11.2t0.7 11.6t0.7 10.7*0.7 l 3 BRP-10 Onsite 10.8t0.7 10.6t0.7 11.6e0.8 10.Qt0.8 b BAP-11 Onsite 11.7*0.7 13.8t0.8 14.2*0.8 12.4*0.8 l BRP-12 Onsite 11.8t0.7 16.1*1.0 16.2tl.3 13.9t0.7 4 BRP-13 Onsite) 11.3t0.7 13.8t0.8 13.8t0.7 11.910.9 t BRP-14 Onsite 250.0t7.5 261.2*3.9 249.919.1 172.3t4.5 BRP-15 Onsite 538.8t17.8 553.2*20.3 469.0t8.2 374.4111.8 l BRP-16 Onsite 10.0t0.8 11.0t0.8 11.0t0.8 10.1*0.7 i BAP-17 Onsite 32.611.5 30.6*1.1 33.5tl.6 20.4*1.2 BRP-18 Onsite) 161.lil.5 112.0t2.3 94.6tl.9 75.2*2.5 h Control 1 (Shield-Onsite) 6.610.7 6.6*0.7d 6.2*0.68 6.4*0.6 , j Control 2 (Shield-Onsite) 6.4*0.8 6.8t0.7d 6.2*0.68 6.7*0.7 a I
- In-transit exposure has been subtracted from total exposure. ND = No data; TLD lost in the Placed 01-13-86; removed 04-03-86; in-transit exposure 1.8t0.5 mR. field.
- l. c Placed 04-03-86; removed 07-03-86; in-transit exposure 1.7*0.7 mR. 8 Placed 09-29-86; removed 01-02-87 E
d Placed 03-31-86; removed 07-03-86; in-transit exposure 1.4*0.7 mR. in-transit exposure 0.St0.6.
- Placed 06-27-86; removed 10-02-86; in-transit exposure 1.3t0.7 mR.
BIG ROCK POINT
- Table 5. Gamma Radiation, as Measured by TLDs
; Exposure: Annually 1986 Annual i Date Placed 01-13-86 Date Removed 01-02-87 In-Transit (mR) 1.2i0.8 Location mR/365 days neta
! BRP-01 (ST 161.319.2 i BRP-02 (NM 40.2il.8 i BRP-03 (CH 41.2 2.2 l BRP-04 (SL) 46.Qt2.8
- BRP-05 (PT NDb l BRP-06 (BC 44.8t3.2
- BRP-07 (TR 42.8i2.4 l _
Mean i s.d. 62.7*48.3
- m l BRP-08(Snield-0ffsite) 33.713.3 I BRP-09 (Onsite) 38.722.6c
! BRP-10(Onsite) 39.li2.6c i BRP-11(Onsite) 49.6t3.5C ! BRP-12 Onsite 53.413.0c BRP-13 Onsite 47.0t4.2c i BRP-14 Onsite 879.6t39.4c 4 BRP-15(Onsite 1.811.7t}57.6C
- BRP-16 (Onsite NDU j BRP-17(Onsite 112.4i10.7c BRP-18 (Onsite 410.6*22.3c
\
l Control 1 (Shield-Onsite) 22.3tl.8C Control 2 (Shield-Onsite) 21.4tl.9c b In-transit exposure has been subtracted from total exposure. ND = No data; TLD lost in the field. c Placed 01-11-86; removed 01-02-87; in-transit exposure 1.2i0.8 mR. l j
l ( I f BIG ROCK POINT ', l I Table 6. Lake Water. Inlet and Discharge t l Collection: Monthly Composites i Units: pC1/1 l Compositing 4 i Period Lab Code Gross Alpha Gross Beta Sr-89 Sr-90 Tritium Required LLD 1.0 4.0 5.0 1.0 500 i l ST - Big Rock Point N6P - Inlet I January 1986 8RLW-5358 NAa 2.2*0.6 M M G00 February 1986 5685 NA 4.9t0.7 E M <500 March 1986 6091 NA 2.1*0.4 E NA 4 00 , April 1986 6485 NA 2.5t0.5 NA M <500 ! Nay 1986 6844 NA 42.0tl.7b NA NA GOO June 1986 7237 NA 8.910.6c NA M G00 . July 1986 7599 NA 2.2t0.6 NA NA GOO i , August 1986 7908 NA 4.360.6 _ Mi NA G00 '; e September 1986 8451 NA 1.9t0.5 ' NA NA GOO October 1986 8787 M 2.1*0.3 NA NA G00 November 1986 9114 NA 2.1*0.4 NA M G00 Decenter 1986 9397.8 NA 2.3i0.5 NA NA 4 00 ST - Big Rock Point N6P - Discharge January 1986 BRLW-5359 <1.0 2.8t0.6 <5.0 <1.0 GOD February 1986 5686 <1.0 2.2t0.6 <5.0 1.3t0.6 <500 March 1986 6092.3 <1.0 2.4*0.4 <5.0 <1.0 <500 April 1986 6486,7 <1.0 2.6t0.4 <5.0 <1.0 <500 May-1986 6845 <1.0 2.0t0.5 <5.0 1.0t0.3 <500 June 1986 7238 <1.0 2.2*0.4 <5.0 <1.0 <500 July 1986 7600 <1.0 3.lil.0 <5.0 1.2*0.6 <500 August 1985 7909 <1.0 2.7i0.6 <5.0 <1.0 <500 September 1986 8452 <1.0 1.4*0.5 <5.0 <1.0 <500 October 1986 8788 <1.0 2.0t0.3 <5.0 <1.0 G00 November 1986 9115 <1.0 2.5t0.4 <5.0 <1.0 <500 4 December 1986 9399 <1.0 2.1*0.4 <5.0 <1.0 <500 i j A " "** ""*I I **d3 ""*I#5IS "*" 9"Id* 4 b "esult R confirmed by reanalysis. Results of gaussa scan: h -54: 5.7*1.3; Co-60: 8.2il.3; Cs-137: 52.5t2.2. f Sr-89: <1.8; Sr-90: 0.810.2. c
- Results of gasuna scan
- h-54: 20.6t6.3; Co-60: 26.7*5.8; Cs-137: 8.3t4.2.
816 ROCK POINT Table 7. Charlevoix Well Water Collection: Monthly Composites Units: pC1/1 Compositing Period Lab Code Gross Beta Tritium Required LLD 4.0 500 January 1986 BRDW-5360 2.3*0.8 <500 February 1986 5687 2.1*0.9 <500 March 1986 6095 2.6*0.7 <500 April 1986 6488 1.8t0.7 <500 May 1986 6847 3.6i0.9 <500 June 1986 7240 2.3*0.6 <500 July 1986 7603 2.7i0.8 <500 l August 1986 7911 1.9*0.7 <500 September 1986 8453 1.7i0.7 <500 October 1986 8785 2.1*0.4 <500 November 1986 9111.2 2.2*0.5 <500 December 1986 9400 2.110.9 <500 l l t 17
BIG ROCK POINT Table 8. Site Well Water Collection: Monthly Units: pC1/1 Collection Date Lab Code Gross Beta Tritium Required LLD 4.0 500 01-31-86 BRW-5361 <1.3 <500 02-28-86 5688 1.9*0.9 <500 03-31-86 6094 1.6t0.6 <500 04-30-86 6489 1.4*0.7 <500 05-31-86 6846 1.7*0.8 <500 06-30-86 7239 2.6i0.7 <500 07-31-86 7601.2 1.8*0.6 <500 r 08-31-86 7910 2.0t0.8 <500 09-3006 , 8454 <1.3 <500 10-31-86 8786 1.5*0.3 <500 11-30-86 9113 1.6*0.7 <500 12-31-86 9401 1.2*0.6 <500 i i 6 k I, 18 ,
i 816 ROCK POINT Table 9. Milk Collection: Monthly Units: pC1/1 Collection Lab Date Code I-131 Sr-89 Sr-90 Cs-134 Cs-137 Ba-La-140 Required LLD 1.0 5.0 1.0 15 18 15 J. Golovich (1) 01-09-86 8RMI-1923 <1.0 <5.0 8.1*0.8a <15 <18 <15 02-13-86 2015 <1.0 <5.0 6.0t0.9 G5 <18 <15 03-13-86 2086 G.0 <5.0 6.3*0.3 <15 <18 <15 1 04-10-86 2161 <1.0 <5.0 S.8t0.9 G5 <18 <15 ' 05-08-86 2245 G.0 <5.0 4.4t0.3 G5 <18 G5 06-12-86 2487 20.4*0.9b <5.0 10.7tl.2 <15 <18 <17C 07-10-86 2657,8 <1.0 <5.0 6.8t0.5 <15 G8 <15 08-14-86 2861 G.0 <5.0 6.7t0.8 <15 <18 <15 09-11-86 3025 G.0 <5.0 6.3 1.0 45 <18 <15 10-09-86 3205 <1.0 <5.0 5.810.9 <15 <18 <15 11-13-86 3390 G.0 <5.0 5,1*0.7 <15 <18 <15 12-11-86 3469 G.0 <5.0 6.2*0.9 G5 G8 G5 t D. Kuebler (2) 01-09-86 BRMI-1921,2 <1.0 <5.0 4.4*0.6 <15 G8 <15 02-13-86 2017,8 <1.0 <5.0 5.4*0.7 G5 <18 <15 03-13-86 2089 G.0 <5.0 7.710'.9 <15 <18 <15 04-10-86 2160 0.0 <5.0 3.7*0.4 <15 G8 <15 05-08-86 2246 <1.0 <5.0 4.3*0.4 <15 <18 <15 06-12-86 2489 6.5t0.5b <5.0 2.8t0.6 <15 <18 <16c 07-10-86 2659 <1.0 <5.0 5.3t0.8 <15 <18 G5 08-14-86 2862,3 <1.0 <5.0 4.2*0.5 <15 <18 <15
- 09-11-86 3024 <1.0 <5.0 3. 7*0. 7 G5 <18 <15
- 10-09-86 3206 <1.0 <5.0 4.3*0.8 <15 <18 <15 11-13-86 3389 <1.0 <5.0 4.1*0.7 G5 <18 <15 12-11-86 3470 G.0 <5.0 5.Qt0.9 <15 <18 <15 I
Result confirmed by reanalysis. b Elevated I-131 activity due to fallout from Chernobyl Nuclear Plant (USSR) accident on April 26, 1986. c Elevated LLD due to delay in counting. 19 i
BIG ROCK POINT Table 9. Milk (continued) Collection Lab Date Code I-131 Sr-89 Sr-90 Cs-134 Cs-137 Ba-La-140 Required LLD 1.0 5.0 1.0 15 18 15 R. McCraney (3)
~01-09-86 BRMI-1924 <1.0 <5.0 5.8*0.9 <15 <18 <15 02-13-86 2019 <1.0 <5.0 6.Qt1.0 <15 <18 <15 :
03-13-86 2090 <1.0 <5.0 5.7*1.0 <15 <18 <15 : 04-10-86 2157 <1.0 <5.0 3.6*0.5 <15 <18 <15 05-08-86 2244 1.3*0.4a <5.0 4.3*0.4 <15 <18 <15 06-12-86 2448 6.9*0.6a <5.0 2.9t0.7 <15 <18 <15 07-10-86 2660 <1.0 <5.0 4.3 0.8 <15 <18 <15 08-14-86 2860 <1.0 <5.0 3.8t0.7 <15 <18 <15 : 09-11-86 3022 <1.0 <5.0 4.2i0.8 <15 <18 <15 10-09-86 3207 <1.0 <5.0 8.6*1.4 <15 <18 <15 11-13-86 3391 <1.0 <5.0 6.6*0.8 <15 <18 <15 12-11-86 3468 <1.0 <5.0 5.9i0.9 <15 <18 <15 1 B. Bochniak (4) 01-09-86 BRMI-1925 <1.0 <5.0 3.9t0.6 <15 <18 <15 02-13-86 2016 <1.0 <5.0 3.4 0.8 <15 <18 <15 I 03-13-86 2087,8 <1.0 <5.0 3.0t0.4 <15 <18 <15 04-10-86 2158,9 <1.0 <5.0 3.010.5 <15 <18 <15 05-08-86 2242,3 1.1*0.2a <5.0 2.8*0.4 <15 <18 <15 06-12-86 2490 10.5*0.6a <5.0 2.5*0.5 <15 <18 <15 07-10-86 2661 <1.0 <5.0 3.0*0.7 <15 <18 <15 08-14-86 2864 <1.0 <5.0 3.2i0.6 <15 <18 <15 09-11-86 3023 <1.0 <5.0 2.7*0.7 <15 <18 <15 10-09-86 3208 <1.0 <5.0 3.6*0.9 <15 <18 <15 11-13-86 3392 <1.0 <5.0 2.6*0.5 <15 <18 <15 i 12-11-86 3467 <1. 0 <5.0 3.6*0.7 <15 <18 <15 l
- Elevated I-131 activity due to fallou': from Chernobyl Nuclear Plant (USSR) l accident on April 26, 1986.
BIG ROCK POINT Table 10. Fish Collection: Semiannually Units: pCi/g wet Mn-54 - Co-58 Sample Date Lab Gross Zr-Nb-95 Co-60 Fe-59. 4 Type Collected Code Beta Sr-89 Sr-90 Ba-La-140 Cs-134 Cs-137 Zn-65 Required LLD 1.0 0.025 0.005 0.1 0.13 0.15 0.26 i Mt. McSauba . Carp 06-16-86 BRF-77 2.5*0.1 <0.025 <0.005 <0.la <0.13 <0.15 <0.26 l
; Salmon 10-06-86 133 2.6*0.1 <0.025 <0.005 <0.1 <0.13 0.16t0.02 <0.26 i 1/4 Mile South Carp 06-16-86 BRF-75 2.6*0.1 <0.025 <0.005 <0.la <0.13 <0.15 <0.26 White Sucker 06-16-86 76 2.9t0.1 <0.025 <0.005 <0.la <0.13 <0.15 <0.26 Salmon 10-06-86 131 2.9t0.1 ~<0.025 <0.005 <0.1 <0.13 0.16*0.02 <0.26 Discharge 1
Carp 06-16-86 BRF-72 2.SiO.1 <0.025 0.00910.001 <0.la <0.13 <0.15 <0.26 Salmon 10-05-86 129 2.9*0.1 <0.025 <0.005 <0.1 <0.13 <0.15 <0.26 Smelt 10-06-86 130 2.1*0.1 <0.025 0.009*0.002 <0.1 <0.13 <0.1S <0.26 a
- Ba-La-140 sensitivity at time of counting.
BIG ROCK POINT j I Table 10. Fish (continued) Mn-54, } Co-58
- Sample Date Lab Gross Zr-Nb-95, 0o-60, Fe-59 Type Collected Code Beta. Sr-89 Sr-90 Ba-La-140 Cs-134 Cs-137 Zn-65 Required LLD 1.0 0.025 0.005 0.1 0.13 0.15 0.26
) 1/4 Mile North f Carp 06-18-86 BRF-73 2.0t0.1 <0.025 <0.005 <0.la <0.13 <0.15 <0. 26 - I Forage 06-18-86 74 1.7*0.1 <0.025 0.013t0.002 <0.la <0.13 <0.15 <0.26 m N Salmon 10-06-86 132 2.310.1 <0.025 <0.005 <0.1 <0.13 <0.15 <0.26 , l 9 Mile Point White Sucker 06-18-86 8RF-78 3.1*0.1 <0.025 <0.005 <0.la <0.13 <0.15 <0.26 Trout 06-18-86 79,80 1.8t0.1 <0.025 0.00710.002 <0.la <0.13 <0.15 <0.26 Salmon 10-05-86 128 2.0t0.1 <0.025 <0.005 <0.1 <0.13 <0.15 <0.26 Ludington (Control), South Jetty . Trout 04-13-86 PAF-1 1.3*0.1 <0.025 0.013*0.002 <0.1 <0.13 <0.15 <0.26 i Sucker 04-13-86 2 2.8t0.2 <0.025 0.029t0.003 <0.1 <0.13 <0.15 <0.26 Sucker 10-19-86 152 2.210.1 <0.025 0.004*0.002 <0.1 <0.13 <0.15 <0.26 Lake Trout 10-19-86 153 2.4*0.1 <0.025 0.006*0.002 <0.1 .<0.13 <0.15 <0.26 Brown Trout 10-19-86 154 2.5*0.1 <0.025 0.00710.002 <0.1 <0.13 <0.15- <0.26 a Ba-La-140 sensitivity at time of counting.
= -, - _ _ _ _ _ , _ _ ____
BIG ROCK POINT NGP t , Table 11. Crayfish Collection: Semiannually ,' Units: pC1/g wet 1 1 191- 5 4 Co-58. . I Date Gross Zr-Nb-95 Co-60, Fe-59 j Collected Lab Code Beta Sr-89 Sr-90 Ba-La-140 Cs-134 Cs-137 Zn-65 1 Required LLD 1.0 0.025 0.005 0.1 0.'13 0.15 0.26 , Mt. McSauba 06-15-86 NSa __ __ __ __ __ __ __ l 10-04-86 NSa __ __ __ __ __ __ __ El l 1/4 Mile South i 06-15-86 BR80-118 1.6t0.3 <0.025 0.229*0.014 <0.lb <0.13 <0.15 <0.26 l 10-04-86 NSa __ __ __ __ __ __ __ Discharge i 06-17-86 BR80-116 1.840.3 <0.025 0.150t0.010 <0.lb <0.13 <0.15 <0.26 l 10-04-86 139 2.3t0.4 <0.025 0.268t0.024 <0.1 <0.13 <0.15 <0.26 l 1/4 Mile North 1 06-17-86 BR80-117 1.4*0.2 <0.025 0.162i0.010 <0.lb <0.13 <0.15 <0.26 3 10-04-86 140 1.8t0.4 <0.025 0.076*0.012 <0.1 <0.13 <0.15 <0.26 ) 9 Mile Point 06-17-86 BRBO-119 1.4*0.3 <0.025 0.246t0.011 <0.lb <0.13 <0.15 <0.26 j 10-04-86 138 1.7*0.4 <0.025 0.105t0.014 <0.1 <0.13 <0.15 <0.26
- " NS = No sample
- sample unavailable due to high water and rough weather.
b
- Ba-La-140 sensitivity at time of counting.
I
m 1 BIG ROCK POINT i ! Table 12. Periphyton i Collection: Semiannually -i j Units: pC1/g wet i
- Mn-54 00-58 Date Gross Zr-Nb-95, Co-60 Fe-59, Collected Lab Code Beta Sr-89 Sr-90 8a-La-140 Cs-134 Cs-137 Zn-65 i
Required LLD 1.0 0.025 0.005 0.1 0.13 0.15 0.26 y Mt. McSauba 06-17-86 NSa __ __ __ __ __ __ __ 10-04-86 NSaa __ __ __ __ __ __ __ , Discharge l 06-17-86 BR80-120,1 7.8*1.1 <0.025 <0.005 <0.1 <0.13b 0.38*0.01 <0.26 j 10 04-86 NSa __ ._. __ .. __ __ __ j 1/4 Mile North
- 06-17-86 BR80-122 4.7*1.1 <0.025 <0.005 <0.lc <0.13 0.6110.01 <0.26
] 10-04-86 NSa __ __ __ __ __ __ __ 1 b NS = No sample; unavailable due to high water and rough weather. i ' C Mn-54: 0.24*0.01; Co-60: 0.25*0.01 , Ba-La-140 sensitivity at time of counting.
BIG ROCK POINT NGP Table 13. Algae Collection: Semiannually Units: pC1/g wet
*Mn-54 Co-58 Gross Zr-Nb-95, Co-60 Fe-59, Date Collected Lab Code Beta Sr-89 Sr-90 Ba-La-140 Cs-134 Cs-137 Zn-65 Required LLO 1.0 0.025 0.005 0.1 0.13 0.15 0.26 Mt. McSauba 3
06-17-86 BRSL-18 1.6t0.3 <0.025 0.013*0.006 <0.1 <0.13 <0.15 <0.26 10-04-86 NSa __ __ 1/4 Mile South BRSL-17 3.0t0.1 <0.025 0.01060.005 <0.1 <0.13 <0.15 <0.26 06-17-86 <0.26 10-05-86 37 1.4*0.2 <0.025 0.012*0.003 <0.1 <0.13 <0.15 Discharge 1.0t0.1 <0.025 0.015t0.003 <0.1 <0.13 <0.15 <0.26 06-15-86 BRSL-15 10-04-86 36 1.4*0.1 ~<0.025 0.008t0.001 <0.1 <0.13 <0.15 <0. 26 - a NS = No sample; sample unavailabe due to high water and rough weather.
BIG ROCK POINT NGP i l Table 13. Algae (continued) Mn-54, ' Co-58, Date Gross 8a-La-140, 00-60 Fe-59 Collected Lab Code Beta Sr-89 Sr-90 Zr-Nb-95 Cs-134 Cs-137 Zn-65 t Required LLD 1.0 0.025 0.005 0.1 0.13 0.15 0.26 i' 1/4 Mile North
)
' ~~ 06-17-86 BRSL-16 1.7t0.1 <0.025 0.009*0.003 ~<0.1 <0.13 <0.15 <0.26 St 10-04-86 NSa __ __ __ __ __ ! 9 Mile Point 06-19-85 BRSL-19 3.2*0.7 <0.025 0.024*0.011 <0.1 <0.13 <0.15 <0.26 10-05-86 35 2.8t0.2 <0.025 <0.005 <0.1 <0.13 <0.15 <0.26
,i j
Ludington (Control). South Jetty 04-13-86 PASL-1 2.9*0.5 <0.025 0.063t0.012 <0.1 <0.13 <0.15 <0.26 10-19-86 43 4.8t0.6 <0.025 0.013t0.004 <0.1 <0.13 <0.15 <0.26 i
- NS = No sample; sample unavailable due to high water and rough weather.
1
- BIG ROCK POINT
- Table 14. Bottom Sediments
- Collection: Semiannually
? Units: pCi/g wet i Ba-La-140, Zr-Nb-95, Oate Gross Co-58, Zn-65 Collected Lab Code Beta Sr-89 Sr-90 Mn-54 Fe-59 Cs-134 Cs-137 Co-60 Required LLO 1.0 0.025 ,0.005 0.08 0.1 0.15 0.18 0.05 Discharge ! ' D$ 06-17-86 BRBS-62 11.1*2.8 <0.025 <0.005 <0.08 <0.1 <0.15 0.26e0.02 <0.05
- 10-04-86 133 7.0t2.7 <0.025 .0.108*0.006 <0.08 <0.1 <0.15 1.13*0.04 <0.05
! 9 Mile Point , i i 06-17-86 BRBS-63 5.2*2.4 <0.025 <0.005 <0.08 <0.1 <0.15 <0.18 <0.05 . 10-07-86 132 3.8i2.2 0.054*0.010 <0.005 <0.08 <0.1 <0.15 <0.18 <0.05 l Ludington South Jetty (Control) l
- 04-13-86 PABS-4 10.4i2.8 <0.025 '0.009*0.004 <0.08 <0.1 <0.15 <0.18 <0.05
. 04-13-86 PA8S-5 11.8*2.9 <0.025 0.009*0.004 <0.08 <0.1 <0.15 <0.18 <0.05 i 10-19-86 144 12.6t3.1 <0.025 <0.005 <0.08 <0.1 <0.15 <0.18 <0.05 10-19-86 145 4.9*2.6 <0.025 0.006*0.003 <0.08 <0.1 <0.15 <0.18 <0.05 l l l
4 BIG ROCK POINT NGP i Table 15. Vegetation l Collection: Monthly, during harvest season. Units: pC1/g wet i Mn-54, Fe-59, Co-58, Zn-65, .
- Sample Date Lab Gross Cs-134, Zr-Nb-95 l
Type Collected Code Beta Sr-89 Sr-90 Cs-137 Ba-La-140 Co-60 1-131 i Required LLD 1.0 0.025 0.005 0.08 0.1 0.08 0.06 - a Bochniak Farm oo
- Cabbage 09-11-86 BRVe-132 3.4*0.2 <0.025 0.096*0.008 <0.08 <0.1 <0.08 <0.06 Beet Tops 09-11-86 133 6.4*0.2 <0.025- <0.005 <0.08 <0.1 <0.08 <0.06 l
l [
n 1 , BIG ROCK POINT I i Table 16.1. Liquid Radwaste Collection: Monthly Composite
- Units
- pC1/m1, except Pu-239 (pC1/1)
L11ection Lab Pu-239 Period Code Gross Alpha Tritium Sr-89 Sr-90 (pCi/1) i . January BRRW-37 <2.4 E-09 6.4*0.1 E-04 3.3*1.9 E-10 6.9*0.8 E-10 2.3*1.0
- February 42 <8.6 E-09 1.7*0.1 E-04 <2.7 E-08 4.1*0.4 E-07 3.4*2.1 4
March 48 <1.0 E-09 2.3*0.1 E-03 5.6*1.0 E-07 5.8t0.4 E-07 2.1*0.6 l April NSa __ __ __ __ ._
- May 59 <1.2 E-08 1.5*0.1 E-03 2.3*1.0 E 1.8t0.4 E-07 3.5*0.9
! June 61 <3.0 E-09 3.3*0.1 E-03 <9.6 E-08 9.1*1.5 E-07 3.4*0.9 ! July 66 <9.3 E-09 2.9t0.1 E-03 4.6t2.6 E-10 6.8*0.7 E-10 2.7*0.7 August 72 <7.8 E-09 6.8t0.1 E-04 3.4*1.2 E-10 3.3*0.4 E-10 2.7*0.5 g September NSa __ __ __ __ . October 82 <7.6 E-09 3.7*0.1 E-04 <1.5 E-07 3.8t0.8 E-07 2.0t0.4 i November 90 <1.0 E-08 9.2*0.1 E-04 <2.8 E-07 1.0t0.2 E-06 2.2*0.4 , December 93 <1.5 E-08 .1.6t0.1 E-04 <1.3 E-07 2.6*0.8 E-07 2.1*0.4 l l Collection j Period Cr-51 Mn-54 Fe-59 Co-58 Co-60 l j January <5.2 E-06 8.0t0.3 E-06 <1.1 E-06 <5.0 E-07 2.0t0.1 E-05 j February <3.0 E-06 2.8t0.4 E-06 <8.4 E-07 1.3*0.2 E-06 1.8t0.1 E-05 4 March <6.9 E-06 7.5*0.5 E-06 <2.0 E-06 <9.2 E-07 4.1*0.8 E-35 ) April -- -- -- -- -- i May <4.9 E-06 4.2*0.3 E-06 <8.5 E-07 <3.9 E-06 9.0t0.3 E-06 ! June <2.9 E-06 1.1*0.1 E-05 <9.2 E-07 <4.1 E-07 1.8t0.1 E-05 ! July 9.9*0.9 E-06 6.1*0.3 E-06 <1.8 E-06 <5.7 ~E-07 2.4*0.1 E-05 August <3.7 E-06 6.7*0.4 E-06 <8.4 E-07 <3.6 E-07 1.1*0.1 E-05 l -- --
! September -- -- --
l October <6.4 E-06 3.5*0.4 E-06 <1.3 E-06 <4.7 E-07 8.3*0.6 E-06 November <4.3 E-06 7.2*0.3 E-06 <1.1 E-06 <4.1 E-07 2.6t0.1 E-05 i December <2.6 E-06 2.3i0.2 E-06 <7.0 E-07 <2.5 E-07 6.7*0.2 E-06 i a NS = No sample; sample unavailable. i
!, BIG ROCK, POINT NGP Table 16.1 Liquid Radwaste (continued)
^
Collection
- Period Zn-65 Zr-95 2-95 Ag-110m Sb-124 Cs-134 January 3.5*0.4 E-06 <8.7 E-07 <4.8 E-07 <6.2 E-07 <3.6 E-07 1.4*0.1 E-05 February <1.4 E-06 <7.1 E-07 <4.1 E-07 <6.8 E-07 <3.2 E-07 1.2*0.1 E-05 March 5.6i0.8 E-06 <1.4 E-06 <7.8 E-07 <7.9 E-07 <4.6 E-06 1.5t0.1 E ,
April -- -- -- -- -- -- l May 8.Si2.2 E-07 <5.6 E-07 .<3.3 E-07 <2.8 E-07 <2.1 E-07 3.910.3 E-06 , June <1.0 E-06 <6.2 E-07 <3.6 E-07 <3.1 E-07 <2.6 E-07 3.7t0.3 E-06 ! July 4.4*0.5 E-06 <1.1 E-06 <6.4 E-07 <5.0 E-07 <3.5 E-07 5.0t0.1 E-05 , August <6.2 E-07 <5.7 E-07 <3.8 E-07 <9.2 E-07 <3.6 E-07 7.6t0.4 E-06 September -- -- -- -- -- --
- October <7.0 E-07 <7.7 E-07 <6.6 E-07 <1.1 E-06 <5.7 E-07 5.5*0.4 E-06 8 November <9.4 E-07 <6.7 E-07 <3.9 E-07 5.7*0.1 E-05 <2.0 E-07 8.6t0.2 E-05 1 December <6.6 E-07 <4.6 E-07 <2.5 E-07 <4.4 E-07 <3.0 E-07 2.6t0.1 E-06 Collection
- Period Cs-137 Ba-140 La-140 Ce-141 Ce-144 I January 4.7*0.1 E-05 <2.4 E-06 <2.7 E-07 <6.3 E-07 <2.4 E-06 February 4.310.1 E-05 <6.0 E-07 <6.2 E-08 <4.0 E-07 <2.6 E-06 l March 4.810.1 E-05 <4.0 E-06 <4.6 E-07 <9.2 E-07 <3.2 E-06
- April -- -- -- -- -- <
{ May 1.8t0.1 E-05 <4.8 E-06 <8.0 E-07 <5.3 E-07 <1.2 E-06 l Jur.e 1.9*0.1 E-05 <1.8 E-06 <4.0 E-07 <2.4 E <7.8 E-07 July 1.5i0.1 E-04
<3.1 E-05 <2.7 E-06 <1.4- E-06 <2.2 E-06 August 3.110.1 E-05 <4.8 E-06 <7.2 E-07 <4.6 E-07 <1.2 E-06 i September -- -- -- -- --
i October 2.3*0.1 E-05 <1.4 E-05 <1. 9 . E-06 <6.9 E-07 <1.3 E-06 ! November 5.8i0.1 E-05 <4.0 E-05 < 5.2 E-07 <3.6 E-07 <8.7 E-07 l December 1.5*0.1 E-05 <1.9 E-06 <2.8 E-07 <2.2 E-07 <6.0 E-07 I l l I b - _ - . . -- . . -
816 ROCK POINT Table 16.2. Stack Filters Collection: Monthly composite Units: pC1/ filter Collection Period Lab Code Gross Alpha Sr-89 Sr-90 Pu-239 January, 1986 BRSP-43 <9.6 2,079142 24.5*3.7 2.0t0.9 February,~ 1986 13.116.5 1,974131 27.9*3.4 44 1.3*0.4 March, 1986 49 6.8tl.3 2,302*39 20.3*3.0 3.6tl.1 April, 1986 50 2.8tJ.4 27,929i755 979*132 4.4*1.7 May, 1986 60 2.3*121 973t25 9.4*2.0 4.1*0.9 June, 1986 62 2.5*1.7 22.6t2.8 876*14 4.111.0 July, 1986 65 30.5*7.6 3,078t66 44.5*5.6 5.3tl.2 August, 1986 73 17.9i5.9 5.693*79 226t13 2.8t0.7 September, 1986 74 18.918.5 5.426t79 172*10 4.711.0 October, 1986 83 5.7*1.5 3,704*69 176t10 4.0il.0 November, 1986 89 13.4*7.9 1,479t71 118t12 3.4*0.7 December, 1986 94 6.012.2 2,165t63 235*15 3.210.7 1 31 l l
BIG ROCK ~ POINT Table 17.1. Special Samples - IRC Split Samples. Units: Strontium - pC1/1 Tritium - pC1/ml Sample Collection Description Date Lab Code Sr-89 Sr-90 H-3 NRC Split 08-05-86 8RSP-69 7.8t0.3 0.8t0.1 5322*15 32
Appendix A Interlaboratory Comparison Program Results ( NOTE: Appendix A will be updated twice a year and the complete Appendix will be included in January and July monthly reports only. Please refer to
' January and July Reports for information.
A-1
) Appendix A Interlaboratory Comparison Program Results Teledyne Isotopes Midwest Laboratory (formerly Hazleton Environmental Sciences) has participated in inte_rlaboratory comparison (crosscheck) programs since the formulation of. its quality control program in December 1971. .These programs are operated by agencies which supply environmental-type samples (e.g., milk or water) containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an independent check on the laboratory's analytical procedures and to alert it to any possible problems. Participant laboratories measure the concentrations of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies control
-. limits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.
The results in Table A-1 were obtained through participation in the environ-mental sample crosscheck program for milk, water, air filters, and food samples during the period May 1984 through November 1986. This program has
- been. conducted by the U. S. Environmental Protection Agency Intercomparison and Calibration Section, Quality Assurance Branch, Environmental Monitoring and Support Laboratory, Las Vegas, Nevada.
The results in Table A-2 were obtained for thermoluminescent dosimeters (TLD's) during the period 1976, 1977, 1979, 1980, and 1981 through parti-cipation in the Second, Third, Fourth, and Fifth International Intercomparison - of Environmental Dosimeters under the sponsorships listed in Table A-2. . Table A-3 lists results of the analyses on in-house spiked samples. Table A-4 lists results of the analyses on in-house " blank" samples. F 5 4 . A-2
Table A-1. U.S. Environmental Protection Agency's crosscheck program, com-parison of EPA and Teledyne Isotopes. Midwest Laboratory results for milk, water, air filters, and food samples,1984 through 1986.a-Concentration in >C1/lb Lab Sample Date TIML Result EPA tesult
! Code Type Collected Analysis ibc ila, n=3d STW-358 Water May 1984 Gross alpha 3.0t0. 6 3*8.7 Gross beta 6.7*1.2 6i8.7 STM-366 Milk June 1984 Sr-89 21*3.1 25i8.7 Sr-90 13i2.0 17i2.6 I-131 46i5.3 43i10.4 Cs-137 38*4.0 35i8.7 K-40 1577t172 1496t130 STW-368 Water July 1984 Gross alpha 5.1*1.1 6*8.7 Gross beta 11.9*2.4 13t8.7 STW-369 Water August 1984 I-131 34.3i5.0 34.0i10.4 STW-370 Water August 1984 H-3 3003t253 2817*617 STF-371 Food July 1984 Sr-89 22.015.3 25.018.7 Sr-90 14.7t3.1 20.0*2.6 I-131 <172 39.0*10.4 Cs-137 24.045.3 25.0t8.7 K-40 2503*132 2605*226.0 STAF-372 Air August 1984 Gross alpha 15.3tl.2 17*8.7 Filter Gross beta 56.0t0.0 51*8.7 Sr-90 14.3tl.2 18*2.4 Cs-137 21.0t2.0 15t8.7 STW-375 Water Sept. 1984 Ra-226 5.110.4 4.9*1.27 Ra-228 2.2*0.1 2.3*0.60 STW-377 Water Sept.1984 Gross alpha 3.3tl.2 5.0t8.7 Gross beta 12.7t2.3 16.018.7 STW-379 Water Oct. 1984 H-3 2860t312 2810i356 STW-380 Water Oct. 1984 Cr-51 <36 40*8.7 Co-60 20.3*1.2 20*8.7 Zn-65 150t8.1 147*8.7 Ru-106 <30 4718.7 Cs-134 31.3t7.0 31i8.7 Cs-137 26.7*1.2 24*8.7 A-3
1 l Table A-1. (continued) Concentration in >C1/lb Lab Sample Date TIML Result EPA tesult Code Type Collected Analysis iarc ilo, n=3d STM-382 Milk Oct.1984 Sr-89 15.714.2 2218.7 Sr-90 12.7*1.2 16*2.6 I-131 41.7*3.1 42i10.4 Cs-137 31.3*6.1 32i8.7 K-40 1447t66 1517t131 STW-384 Water Oct. 1984 Gross alpha 9.7kl.2 14*8.7 (Blind) Sample A Ra-226 3.3*0.2 3.0i0.8
.Ra-228 3.4i1.6 2.1*0.5
\ Uranium nae 5*10.4 Sample 8 bross beta 46.3i5.0 64i8.7 Sr-89 10.714.6 11i8.7 Sr-90 7.311.2 12*2.6 Co-60 16.311.2 14t8.7 Cs-134 <2 2i8.7 Cs-137 16.7tl.2 14t8.7 STAF-387 Air Nov. 1984 Gross alpha 18.7tl.2 15*8.7 Filter Gross beta 59.0*5.3 52*8.7 Sr-90 18.3*1.2 21*2.6 Cs-137 10.3*1.2 10i8.7 STW-388 Water Dec. 1984 I-131 28.0*2.0 36i10.4 STW-389 Water Dec. 1984 H-3 3583*110 3182i624 STW-391 Water Dec. 1984 Ra-226 8.4i1.7 8.612.2 Ra-228 3.110.2 4.lil.1 STW-392 Water Jan. 1985 Sr-89 <3.0 3.018.7 Sr-90 27.315.2 30.012.6 STW-393 Water Jan. 1985 Gross alpha 3.3*1.2 5*8.7 Gross beta 17.3*3.0 1518.7 STS-395 Food Jan. 1985 Gross alpha 4.7*2.3 6.0*8.7 Gross beta 11.3tl.2 15.0t8.7 Sr-89 25.316.4 34. 0i8. 7 Sr-90 27.0*8.8 26.0i2.6 I-131 38.0*2.0 35.0110.4 Cs-137 32.7*2.4 29.018.7 K-40 1410*212 1382*208 A-4
- = .
Table A-1. (continued) Cont.entration in pC1/lb
-Lab Sample Date TIML Result EPA tesult Code Type Collected Analysis i2bc lo, n=3d i
STW-397 Water Feb. 1985 Cr-51 <29 48t8.7 i Co-60 21.3t3 9 20i8.7 Zn-65 53. 71. r-. 55*8.7 1- Ru-106 <2S 25t8.7 Cs-134 32.3tl.2 35*8.7 Cs-137 25.3i3.0 25t8.7 STW-398 Water Feb. 1985 H-3 3869*319 3796t634 STM-400 Milk March 1985 I-131 7.3t2.4 9.0il.6 STW-402 Water March 1985 Ra-226 4.6*0.6 5.0tl.3 Ra-228 <0. 8 9.012.3 Reanalysis Ra-228 9.0to.4 STW-404 Water March 1985 Gross alpha 4.7*2.3 6*8.7 Gross beta 11.3tl.2 15t8.7 i STAF-405 Air March 1985 Gross alpha 9.3*1.0 10.0t8.7 Filter Gross beta 42.0tl.1 36.0t8.7 Sr-90 13.3tl.0 15.0i2.6 Cs-137 6.3tl.0 6.0i8.7 STW-407 Water April 1985 I-131 8.0i0.0 7.5*1.3 STW-408 Water April 1985 H-3 3399t150 3559*630 , I STW-409 Water April 1985 (811nd) Gross alpha 29.7tl.8 32.0t8.7 Sample A Ra-226 4.4*0.2 4.lil.0 Ra-228 NA8 6.2*1.6 Uranium NA8 7.0t10.4 Sample 8 Gross beta 74.3*11.8 72.018.7 Sr-89 12.3*7.6 10.0i8.7 Sr-90 14.7f2.4 15.0i2.6 Co-60 14.7t2.4 15.0i8.7 Cs-134 12.0i2.0 15.0*8.7 Cs-137 14.0*2.0 12.0i8.7 A-5
l l Table A-1. (continued) Concentration in >C1/lb Lab Sample Date TIML Result EPA tesult Code Type Collected Analysis t2ac tio, n=3d STW-413 Water- May 1985 Sr-89 36.0112.4 39.0t8.7 Sr-90 14.3*4.2 15.0t2.6 STW-414 Water May 1985 Gross alpha 8.3*4.1 12.0t8.7 Gross beta 8.7tl.2 11.0*8.7 , STW-416 Water June 1985 Cr-51 44.7*6.0 44.0t8.7 Co-60 14.3tl.2 14.0i8.7 Zn-65 50.3t7.0 47.018.7 Ru-106 55.315.8 62.018.7 Cs-134 32.7tl.2 35.018.7 Cs-137 22.712.4 20.018.7 STW-418 Water June 1985 H-3 2446*132 2416t609 STM-421 Milk June 1985 Sr-89 10.3t4.6 11.0*8.7 . Sr-90 9.012.0 11.0t2.6 I-131 11.7tl.2 11.0*10.4 Cs-137 12.7*1.2 11.0*8.7 K-40 1512t62 1525*132 STW-423 Water July 1985 Gross alpha 5.0i0.0 11.018.7 Gross beta 5.0*2.0 8.0t8.7 STW-425 Water August 1985 I-131 25.713.0 33.0*10.4 STW-426 Water August 1985 H-3 4363*83 44801776 STAF-427 -Air August 1985 Gross alpha 11.3t0.6 13.0i8.7 Filter Gross beta 46.011.0 44.018.7 Sr-90 17.7t0.6 18.012.6
- Cs-137 10.3*0.6 8.0i8.7
! STW-429 Water Sept. 1985 Sr-89 15.7*0.6 20.0i8.7 Sr-90 7.0*0.0 7.012.6 STW-430 Water Sept. 1985 Ra-226 8.210.3 8.912.3 Ra-228 4.1*0.3 4.6tl.2 STW-431 Water Sept. 1985 Gross alpha 4.7*0.6 8.0i8.7 Gross beta 4.7*1.2 8.018.7 4 4 A-6 4
Table A-1. (continued) Concentration in JC1/lb Lab Sample Date TIML Result EPA ksult Code Type Collected Analysis *2bc ilo, n=3d STW-433 Water Oct. 1985 Cr-51 <13 21.0*8.7 Co-60 19.30.6 20.0t8.7 Zn-65 19.7*0.6 19.0t8.7 Ru-106 <19 20.0t8.7 Cs-134 17.0tl.0 20.0i8.7 Cs-137 19.3i1.2 20.0*8.7 STW-435 Water Oct. 1985 H-3 1957i50 1974*598 STW-436 Water Oct. 1985 437 (Blind) Sample A Gross alpha 53.0t1.0 52.0122.6 Ra-226 5.910.1 6.3tl.6 Ra-228 8.2*0.1 10.112.6 Uranium NA' 8.0i10.4 Sample B Gross heta 85.7*2.5 75.0i8.7 Sr-89 21.3*1.5 27.
- 8.7 Sr-90 10.3*0.6 9.C 2.6 Cc-60 18.3*1.2 18.0t8.7 Cs-134 16.3*1.2 18.0t8.7 Cs-137 19.0il.0 18.0t8.7 STM-439 Milk Oct. 1985 Sr-89 50.3*0.6 48.0*8.7 Sr-90 23.3i0.6 26.0i2.6 I-131 45.7*3.2 42.0*10.4
[ 60.7*0.6 Cs-137 56.0t8.7 K-40 1547i29 1540t134 STW-441 Water Nov. 1985 Gross alpha 5.3i0.6 10.0t8.7 Gross beta 11.7*1.2 13.0i8.7 STW-443 We.ter Dec. 1985 I-131 46.7*2.1 45.0*10.4 STW-444 Water Dec. 1985 Ra-226 6.5*0.1 7.1*1.9 Ra-228 6.1*0.1 7.3tl.9 STW-445 Water Jan. 1986 Sr-89 29.7*2.5 31.0*8.7 Sr-90 13.7*0.6 15.0*2.6 STW-446 Water Jan. 1986 Gross alpha 3.0*0.0 3.0t8.7 Gross beta 5.3*0.6 7.0*8.7 A-7
Table A-1. (continued) Concentration in pCi/lb Lab Sample Date TIML Result EPA tesult Code Type Collected Analysis i2ac *lo, n=3d STW-447 Food Jan. 1986 Sr-89 24.3*2.5 25.0*8.7 Sr-90 17.310.6 10.0t2.6 I-131 22.7f2.3 20.0t10.4 Cs-137 16.3i0.6 15.0i8.7 K-40 927146 950t249 STW-448 Water Feb. 1986 Cr-51 45.0t3.6 38.0t8.7 ! Co-60 19.7tl.5 18.0*8.7 i Zn-65 44.0t3.5 40.Qt8.7 Ru-106 <9.0 0.018.7 Cs-134 28.3*2.3 30.0i8.7 Cs-137 23.7*0.6 22.0i8.7 STW-449 Water Feb. 1986 H-3 5176t48 5227*910 STW-450 Water Feb. 1986 U total 8.0t0.0 9.0t10.4 STW-451 Milk Feb. 1986 I-131 7.0t0. 0 9.0210.4 STW-452 Water March 1986 Ra-226 3.8t0.1 4.lil.1 11.0*0.5 12.4t3.2 4 Ra-228 STW-453 Water March 1986 Gross alpha 6.7*0.6 15.0t8.7 Gross beta 7.3*0.6 8.018.7 STW-454 Water April 1986 I-131 -7.0*0.0 9.0i10.4 STW-455 Water April 1986 456 (Blind) Sample A Gross alpha 15.0il.0 17.Gi8.7 Ra-226 3.1*0.1 2.9*0.8 Ra-228 1.5*0.2 2.0*0.5 Uranium 4.710.6 5.Qt10.4 Sample B Gross beta 28.7*1.2 35.0i8.7
, Sr-89 5.7i0.6 7. 0*8. 7 Sr-90 7.0f0. 0 7. 0*2. 6 Co-60 10.7tl.5 10.0*8.7 -
Cs-134 4.0*1.7 5.0*8.7 Cs-137 5.3*0.6 5. 0*8. 7 A-8 j
,,,,m .___ _ . . - _ - _ . , . _ . _ , ,-_,,,-__-,_,.-__,_m__ ,.,_ . .~.
Table A-1. (continued) Concentration in pCi/lb Lab Sample Date TIML Result EPA Result < Code Type Collected Analysis ia,c ilo, n=3d STAF-4L7 Air April 1986 Gross alpha 13.710.6 15.0*8.7 Filter Gross beta 46.3*0.6 47.0i8.7 Sr-90 14.7*0.6 18.Qt2.6 Cs-137 10.7t0.6 10.0i8.7 STU-458 Urine April 1986 Tritium 4313*70 4423*327 STW-459 Water May 1986 Sr-89 4.3i0.6 5.018.7
.Sr-90 5.0i0.0 5.0*2.6
\
STW-460 Water May 1986 .. Gross alpha 5.3i0.6 8.0i8.7 Gross beta 11.3*1.2 15.0i8.7 STW-461 Water June 1986 Cr-51 <9.0 0.0t8.7 Co-60 66.0il.0 66.0i8.7 Zn-65 87.3i1.5 86.0i8.7 Ru-106 39.7*2.5 50.018.7 Cs-134 49.3i2.5 49.0t8. 7 Cs-137 10.3*1.5 10.018.7 STW-462 Water June 1986 Tritium 3427i25 3125i626 STM-464 Milk June 1986 Sr-89 <1.0 0.Qt8.7 Sr-90 15.3i0.6 16.0i2.6 I-131 48.3*2.3 41.0*10.4 Cs-137 43.7il.5 31.018.7 K-40 1567*114 1600t139 STW-465 Water July 1986 Gross alpha 4.7i0.6 6.018.7 Gross beta 18.7*1.2 18.0i8.7 i STW-467 Water August 1986 I-131 30.3i0.6 45.0i10.4 STW-468 Water August 1986 Pu-239 11.3i0.6 10.lil.8 STW-469 Water August 1986 Uranium 4.0f0.0 4.0i10.4 STAF-470 Air September 1986 Gross alpha 19.3tl.5 22.018.7 471 Filter Gross beta 64.0i2.6 66.0i8.7 472 Sr-90 22.0il.0 22.0i2.6 Cs-137 *25.7tl.5 22.0*8.7 STW-473 Water September 1986 Ra-226 6.0f0.1 6.1*1.6 i Ra-228 8.7tl.1 9.112.4 l i i A-9
i Table A-1. (continued) Concentration in pCi/lb Lab Sample Date TIML Result EPA Result Code Type Collected Analysis *2aC *10, n=3d ! STW-474 Water September 1986 Gross alpha 16.3*3.2 15.0*8.7 Gross beta 9.0tl.0 8.0i8.7 STW-475 Water October 1986 Cr-51 63.3i5.5 59.018.7 Co-60 31.0t2.0 31.0i8.7 Zn-65 87.3*5.9 85.0t8.7 Ru-106 74. 7* 7. 4 74.0t8.7 Cs-134 25.7i0.6 28.0 8.7 Cs-137 46.3*1.5 44.0t8.7-j STW-476 Water October 1986 H-3 5918i60 5973*1035 STM-479 Milk November 1986 Sr-89 7.7*1.2 9.0t8.7 Sr-90 1.0t0.0 0.0*2.6 I-131 52.3*3.1 49.Qt10.4 Cs-137 45.7*3.1 39.0t8.7 K-40 1489i104 1565*135 STU-480 Urine November 1986 H-3 5540i26 5257*912
- STW-481 Water November 1986 Gross alpha 12.014.0 20.018.7
- Gross beta 20.0i3.5 20.0i8.7 a Results obtained by Teledyne Isotopes Midwest Laboratory as a participant
' in the environmental sample crosscheck program operated by the Intercom-parison and Calibration Section, . Quality Assurance Branch, Environmental Monitoring and Support Laboratory, U.S. Environmental Protection Agency, b (EPA), Las Vegas, All results are in Nevada. pCi/1, except for elemental potassium (K) data, which are in ag/1; air filter samples, which are in pCi/ filter; and food, which is in pC1/kg. c Unless otherwise indicated, the TIML results are given as the mean *2 standard deviations for three determinations. d USEPA results are presented as the known values i control limits of b for n = 3.
- NA = Not analyzed.
f Analyzed but not reported to the EPA. 9 Results after calculations corrected (error in calculations when reported to EPA). l A-10
Table A-2. Crosscheck program results, thermoluminescent dosimeters (TLDs). mR Teledyne Average 12e d Lab TLD Result Known (all Code Type Measurement 12aa valuec participants) 2nd International Intercomparisonb 115-2 CaF2:Mn Field 17.011.9 17.1 16.417.7 Bulb Lab 20.8t4.1 21.3 18.8t7.6 j 3rd International Intercomparisone 115-3 CaFp:Mn Field 30.713.2 34.914.8 31.Si3.0
? Bulb 86.2124.0 C Lab 89.6t6.4 91.7114.6 4th International Intercomparisonf i 115-4 CaF2:Mn Field 14.111.1 14.1 1.4 16.019.0 BuTb Lab (Low) 9.3tl.3 12.2i2.4 12.0t7.6 Lab (High) 40.4tl.4 45.819.2 43.9113.2 I Sth International Intercomparison9 j 115-5A CaF2:Mn Field 31.4*1.8 30.016.0 30.2114.6 Bulb . Lab at 77.415.8 75.227.6 75.8140.4 beginning Lab at 96.6t5.8 88.4*8.8 90.7131.2 the end 1
i t
i 1
! Table A-2. (Continued) niR Teledyne Average i 2s d Lab TLD Result Known (all 4
Code Type Measurement i&ra valuec participants) 115-58 LiF-100 Field 30.314.8 30.0t6.0 30.2114.6 Chips j Lab at 81.li7.4 75.2*7.6 75.8t40.4 4 beginning l Lab at 85.4*11.7 88.418.8- 90.7131.2
- the end 7th International Intercomparisonh '
I ? ' i G 115-7A LiF-100 Field 75.4t2.6 75.816.0 75.li29.8
! Chips
! Lab (Co-60) 80.0i3.5 79.914.0 77.9t27.6 Lab (Cs-137) 66.6t2.5 75.0t3.8 73.0*22.2 i 115-78 CaF2:Mn Field 71.Si2.6 75.816.0 75.1*29.8 l Bulbs Lab (Co-60) 84.8t6.4 79.914.0 77.9127.6 j l Lab (Cs-137) 78.8tl.6 75.0i3.8 73.0i22.2 i , 115-7C CaSO4 :Dy Field 76.8t2.7 75.8t6.0 75.1129.8 Cards Lab (Co-60) 82.5t3.7 79.914.0 77.9t27.6 Lab (Cs-137 79.0t3.2 75.013.8 73.0i22.2 i l
l Table A-2. (Continued) l ng Avera9e i b d I Teledyne l Lab TLD Result Known (all . j Code Type Measurement iba Valuec participants) . 8th International Intercomparisoni l 115-8A LiF-100 Field Site 1 29.511.4 29.711.5 28.9*12.4 i Chips 10.4i0.5 10.119.06 Field Site 2 11.3i0.8 Lab (Cs-137) 13.710.9 17.2i0.9 16.2*6.8 , 115-88 CaF2:Mn Field Site 1 32.3*1.2 29.7*1.5 28.9112.4 Bulbs 9.011.0 10.4*0.5 10.119.0 Field Site 2 l Lab (Cs-137) 15.8i0.9 17.210.9 16.216.8 l l 115-8C CaSO4 :Dy Field Site 1 32.3t0.7 29.711.5 28.9*12.4 Cards 10.6t0.6 10.410.5 10.119.0
- l Field Site 2.
i I Lab (Cs-I37 18.1*0.8 17.2*0.9 16.216.8 f , a Lab result given is the mean 12 standard deviations of three determinations. b Second International Intercomparison of Environmental Dosimeters conducted in April of 1976 by the Health , j and Safety Laboratory (GASL), New York, New York, and the School of Public Health of the University of ! l Texas. Houston, Texas. i C Value determined by sponsor of the intercomparison using continuously operated pressurized ion chanber. l d Mean 12 standard deviations of results obtained by all laboratories participating in the program. e Third International Intercomparison of Environmental Dosimeters conducted in sunener of 1977 by Oak Ridge National Laboratory and the School of Public Health of the University of Texas, Houston, Texas. f Fourth International Intercomparison of Environmental Dosimeters conducted in suunner of 1979 by the j School of Public Health of the University of Texas, Houston, Texas. I 9 Fifth International Intercomparison of Environmental Dosimeter conducted in fall of 1980 at Idaho Falls, j Idaho and sponsored by the School of Public Health of the University of Texas, Houston, Texas and Environmental Measurements Laboratory New York, New York, U.S. Department of Energy. h Seventh International Intercomparison of Environmental Dosimeters conducted in the spring and summer of {' 1984 at Las Vegas, Nevada, and sponsored by the U.S. Department of Energy, the U.S. Nuclear Regulatory
, Commission, and the U.S. Environmental Protection Agency.
Eighth International Intercomparison of Environmental Dosimeters conducted in the fall and winter of 1985-1986 at New York, New York, and sponsored by the U.S. Department of Energy.
q )
'g j t
Table A-3. In-house spiked samples. d t Concentration in pC1/1 Lab. Sample Date TIML Result Known Expected Code Type Collected Analysis n=3 Activity Precision 4 1s, n=3a 2 QC-MI-6 Milk Feb. 1986 Sr-89 6.011.9 6.4*3$0 8.7 Sr-90 14.2il.7 '12.9*2.0 5.2 g I-131 34.2i3.8 35.2i3.5 10.4
; Cs-134 32.0t1.8 27.315.0 8.7 Cs-137 35.8t2.1 35.0*5.0 8.7 QC-W-14 Water ,Mai. 1986 Sr-89 1. 6*0'. 4 1.6i1.0 7.1 -
Sr-90 2.4*0.2 2.4*2.0 4.2 QC-W-15 Water Apr.~1986 'I-131 44.912.4 41.5i7.'O 10.6 Co-60 '10.6i1.7 '12.li5.0 7.lb Cs-134 ,1^ 30.2*2.4 25.8*8.0 7.lb Cs-137 21.9tl.9 19.9i5.0 b 37.l QC-MI-7 Milk Apr. 1986 > I-131 39.7*3.3 41.5*7.0 10.4 Cs-?.34 28.7*2.8 25.8t8.0 8.7
'. Cs-137 21.2i2.8 '19.915.0 8.7 y SPW-1 Water May 1986 Gross alpha 15.811.B 18.0i5.0, Sc
! a i' -QC-W-16 Water June 1386 Gross alpha 16.2*0.7 16.912.5 8.7 Gross beta 38.4i3.5 730.2*5.0 8.7 QC-MI-9 Milk June 1986
/
Sr-89 <1.' O 't 0.0 7.lb Sr-90 12.6tl.8 13.3*3.0 4.2b I-131 38.9i7.0 34.817.0 10.4 Cs-134 33.0i3.4 36.115.0 S.7 (
- 4 Cs-137 38.5t2;8 39.0*5.0 8.7 l \
SPW-2 Watert : June 1986 Gross alpha 16.811.8 18.0*5.0 Sc SPW-3 Water June 1986 Gross alpha 17.7i0.8 18.015.0 SC l~ '
' QC-W-18 Water Sep. 1986 Cs-134 34.7*5.6 31.3i5.0 8.7
's Cs-137 51.li7.0 43.318.0 ; 8.7 QC-W-19 Water Sep. 1936 Sr-89 13.6*4.1 15.6t3.5 ' 7. lb
, Sr-90 6.4i1.6 6.2i2.0 4.2b l
l k l A-14
Table A-3. In-house spiked samples (continued) Concentration in pC1/1 Lab Sample Date TIML Result Known Expected Code Type Collected Analysis n=3 Activity Precision 1s, n=3a QC-W-21 Water Oct. 1986 Co-60 19.212.2 18.Sf3.0 8.7 Cs-134 31.715.2 25.6*8.0 8.7 Cs-137 23.8*1.0 21.6*5.0 8.7 QC-MI-11 Milk Oct 1986 Sr-89 12.3*1.8 14.3*3.0 8.7 OC-W-20 Water Nov. 1986 H-3 3855*180 3960i350 520b QC-W-22 Water Dec. 1986 Gross alpha 9.'d tl.4 11.2*4.0 8.7 Gross beta 21.712.0 23.8*5.0 8.7 4%W-23 Water Jan. 1987 I-131 -29.8t2.5 27.9i3.0 10.4 QC-MI-12 Milk Jan. 1987 I-131 36.Sil.3 32.615.0 10.4 Cs-137 32.6i4.2 27.418.0 8.7 a b n=3 unless noted otherwise. n=2. c n=1. A-15
Table A-4. In-house " blank" samples. Concentration in pC1/1 Acceptance Lab Sample Date Results Criteria Code Type Collected Analysis (4.660) (4.660) BL-1 D.I. Water Nov. 1985 Gross alpha <0.1 <1 Gross beta <0.4 <4 BL-2 D.I. Water Nov. 1985 Cs-137 (gama) <1. 9 <10 BL-3 D.I. Water Nov. 1985 Sr-89 <0. 5 <5 Sr-90 <0.6 <1 BL-5 0.I. Water Nov. 1985 Ra-226 <0.4 <1 Ra-228 <0.4 <1 SPW-2265 D.I. Water Apr. 1985 Gross alpha <0.6 <1 Gross beta <2.2 <4 Sr-89 <0.2 <5 Sr-90 <0.4 <1 I-131 <0.2 <1 Cs-137 (gama) <7.4 <10 BL-6~ D.I. Water Apr. 1986 Gross alpha <0.4 <1 BL-7 D.I. Water Apr. 1986 Grcss cipha <0.4 <1 BL-8 D.I. Water June ' 1986 Gross alpha <0.4 <1 BL-9 D.I. Water June 1986 Gross alpha <0.3 <1 A-16
Appendix B Data Reporting Conventions s 8-1
Data Reporting. Conventions 1.0. All activities are decay corrected to collection time. 2.0. Single Measurements - t Each single measurement is reported as follows: xis where x = value of the measurement; s = 2e counting uncertainty (corresponding to the 955 confidence
., level).
In cases wh'ere the activity is found to be below the lower limit of detection L it is reported as
<L .
where L = is the lower limit of detection based on 4.66 uncertainty for a background sample. 3.0. Duplicate Analyses 3.1. Individual results: x1 i s1 x2
- 52 Reported result: xis where x = (1/2) (x1 + x2 s=(1/2)fs2 , 3j 3.2. Individual results: <L1
<L2 Reported result: <L where L = lower of L1 and L2 3.3. Individual results: xis
<L Reported result: x i s if x > L;
<L otherwise l
i B-2 l l
- 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; forquarterly of example,standard an annual standard deviation would not be the average deviations. The average x and standard deviations of a set of n numbers x1, x2, . . . xn are defined as follows:
x = h Ex
, , g I(x-702 V n-1 (-
4.2 Values below the highest lower limit of detection are not included in the average. 4.3 If all of the values in the averaging group are less than the highest LLD, the highest LLD is reported. 4.4 If all but one of the values are less than the highest LLO, the single value x and associated two sigma error is reported. 4.5. In rounding off, the following rules are followed: 4.5.1. If the figure following those to be retained is less than 5, the figure is dropped, and the retained figures are kept unchanged. As an example,11.443 is rounded off to 11.44. 4.5.2 If the figure following those to be retained is greater than 5, raised the byfigure 1. is dropped, and the last retaired figure is As an example,11.446 is rounded off to 11.45. 4.5.3. If the figure following those to be retained is 5, and if ! there are no figures other than zeros beyond the five, the figure 5 is dropped, and the last-place figure retained is increased by one if it is an odd number or it is kept unchanged if an even number. As an example, 11.435 is ( I rounded off to 11.44, while 11.425 is rounded off to 11.42. I B-3
- e. .._. _
y--v--- --w-e-w 3,7yy%, . , ,,m-,,av=v'C-' sd-uW' *-Mw3P W-W* rvdWPN4m m-- M?-*-rt*m e e e e-P-e=weet-Mwn e prF=w-- twee= w e T e- aw--Ne=PkNverwer=rr=w'W-N'*9--' -----'w"
r Appendix C Elevated Airborne Iodine-131 Activity Resulting From Chernobyl Nuclear Plant Accident (USSR) April 26, 1986 l t { i C-1 l w - y-ywy,yrw-w.,s--e,- -e vee,-~ y*w,-aww,+-r,-"w,wgw,ywey qw-- ,n----w w ww -
-y,*w - --
ELEVATED AIR 8(RNE 100!NE-131 ACTIVITY RESULTING FROM CHERN08YL NUCLEAR PLANT ACCIDENT (USSR) APRIL 26, 1986 Location Date Concentrgtion (pC1/m ) 8R-1 05-15-86 BR-2 0.24t0.02 05-15-86 0.59k0.05 BR-3 05-15-86 BR-4 0.76t0.11 05-15-86 0.32t0.03 8R-5 05-15-86 0.12*0.02 BR-6 05-15-86 0.70t0.10 BR-1 05-22-86 0.24*0.06 BR-3 05-22-86 0.1860.07 BR-4 05-22-86 8R-5 0.44*0.08 05-22-86 0.15t0.04 BR-7 05-21-86 0.20t0.05 BR-1 05-29-86 0.1910.09 BR-2 05-29-86 0.09*0.03 BR-3 05-29-86 0.1440.06 BR-4 05-29-86 0.13t0.07 BR-6 05-29-86 BR-7 0.16t0.09 05-28-86 0.25*0.09 BR-2 06-05-86 0.10t0.05 BR-3 06-05-86 BR-4 0.26t0.11 l 06-05-86 0.08t0.05 BR-6 06-05-86 0.0910.06 BR-7 06-05-86 0.09*0.04 C-2
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