ML051260103
| ML051260103 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 12/31/2004 |
| From: | Exelon Generation Co |
| To: | NRC/FSME |
| References | |
| +kBR1SISP20060530, FOIA/PA-2006-0130, SVPLTR #05-0019 | |
| Download: ML051260103 (85) | |
Text
-
ATTACHMENT 1 I
I I
. I I
I I
I o
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 Regulatory Limits
- a.
For Noble Gases:
Dose Rate
- 1)
Less than 500 mrem/year to the whole body.
- 2)
Less than 3000 mrem/year to the skin.
nose Gahmmai Rndiitipn
- 1)
Less than or equal to 5 mrad/quarter.
- 2)
Less than or equal to 10 mrad/year.
Retry Ridialoin
- 1)
Less than or equal to 10 mrad/quarter.
- 2)
Less than or equal to 20 mrad/year.
b.,c.
For Iodine-131, for Iodine-133, and for all radionuclides in particulate form with half-lives greater than 8 days:
Dose Rate
- 1)
Less than 1500 mrem/year.
Dnse
- 1)
Less than or equal to 7.5 mrem/quarter to any organ.
- 2)
Less than or equal to 15 mremlyear to any organ.
- d.
For Liquid:
I )
Less than or equal to 1.5 mrem to the whole body during any calendar quarter.
- 2)
Less than or equal to 5 mrem to any organ during any calendar quarter.
- 3)
Less than or equal to 3 mrem to the whole body during any calendar year.
- 4)
Less than or equal to 10 mrem to any organ during any calendar year.
- 2.
Maximum Permissible Concentration a., b., c. For fission and activation gases, iodines and particulates with half-lives greater than 8 days, allowable dose rates are calculated by solving equations 10-1 and 10-2 from the Offsite Dose Calculation Manual (ODCM).
- d.
For liquid effluents, allowable release limits are calculated by solving equations 10-3 and 10-4 from the ODCM.
- 3.
Average Energy The average energy of fission and activation gases was calculated for the gaseous effluents released from the site.
The average energy is based on the percentage of each noble gas nuclide present and its average energy per disintegration (E in MeV/dis) for gamma and beta emissions separately.
PGAMMA
=
7.60E-01 MeV/dis NMErA
=
4.63E-01 MeV/dis I
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249
- 4.
Measurement and Approximations of Total Radioactivity
- a.
Fission and Activation Gases:
- b.
lodines:
- c.
Particulates:
The Units 2/3 and Unit I Chimneys, Units 2/3 Reactor Building Vent and Unit I Chemical Cleaning Building effluents are continually sampled for iodines and particulates. These samples are changed weekly and analyzed by gamma isotopic. The particulate filters are composited and sent to a vendor for gross alpha, Sr-89/90, and Fe-55 analysis. Noble gas grab samples are obtained weekly and analyzed by gamma spectroscopy. Tritium samples are obtained monthly and analyzed by liquid scintillation.
For the Units 2/3 Chimney and Units 2/3 Reactor Building Vent effluents, the average flow at the release points is used to calculate the Curies released. For the Unit 1 Chimney and Unit I Chemical Cleaning Building effluents, the design basis flows are used to calculate Curies released.
- d.
Liquid Effluents:
The river discharge tanks are analyzed for gamma-emitting nuclides by gamma spectroscopy and for tritium by liquid scintillation prior to discharge. A representative portion of this sample is saved and composited with other discharges that occur during the sampling period. The composite is sent to a vendor for analyses of gross alpha, Fe-55, and Sr-89/90.
The tank volumes and activities are used to calculate the diluted activity released at the discharge point from batch discharges.
- e.
Less than the Lower Limit of Detection (<LLD)
Samples are analyzed such that the ODCM LLD requirements are met. When a nuclide is not detected then <LLD is reported.
- f.
Equipment Out of Service (1) The Unit 3 Service Water Effluent Radiation Monitor was out of service from November 22, 2004 and remained inoperable at the end of 2004. The monitor was declared inoperable due to low sample flow through the monitor. This inoperability was not corrected in a timely manner due to excessive lead time for replacement parts, the repair of a crack discovered in the sample header, and the development and implementation of an engineering modification to improve monitor sample flow. Contingency grab sampling and analysis was performed as required during the monitor's inoperability. The monitor was returned to operable status on April 9, 2005. This inoperability of greater than 30 days is being reported per Dresden ODCM Section 12.2.A.1.3.
2
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249
- 4.
Measurement and Approximations of Total Radioactivity (continued)
- g.
Estimation of Data/Corrections:
(1) On June 9,2004 a Radioactive Material (RAM) and Radiological Environmental Monitoring Program (REMP)
Self Assessment identified that gamma isotopic analyses were not being performed using adequate a priori LLD verifications as required by the Dresden ODCM. This resulted in several cases where the a posteriori Minimum Detectable Activity (MDA) for Xe-138 was greater than the ODCM LLD of 1.00E-05 pCi/ml. This occurred in three Unit 2 Service Water grab samples (on April 20, 2004; May 18, 2004; and May 25, 2004) and one Unit 3 Service Water grab sample (on April 20, 2004). No noble gases were detected in any Service Water samples during 2004. Because other gases that would be seen in an effluent mixture with longer half-lives were not detected (like Xe-135), and Xe-138 is not normally detected in Service Water effluents, it is determined that no release of Xe-138 occurred.
(2) On November 30, 2004 Liquid Radwaste Discharge 04-003 was discharged to the environment and the Xe-138 LLD was not met due to excessive delay in the analysis. This was discovered on December 2,2004 during additional review of the River Discharge Card. No noble gases were detected in any Liquid Radwaste Discharge samples during 2004. Xe-138 was not identified during the analysis of discharge 04-003, and the calculated a posteriori MDA for Xe-138 of the release was 1.96E-04 pCi/ml. Because other gases that would be seen in an effluent mixture with longer half-lives were not detected (like Xe-135), and Xe-138 is not normally detected in Liquid Radwaste Discharge effluents, it is determined that no release of Xe-138 occurred.
(3) On December 9, 2004 Liquid Radwaste Discharge 04-010 was discharged to the environment. ODCM requirements for the discharge were met for the discharge, but the records for the tritium analysis for the release could not be located afterward. This was discovered on December 23, 2004 during administrative processing of the River Discharge Card, and attempts to locate the documentation were unsuccessful. For reporting purposes, the discharge tritium concentration was estimated using the average of reactor water tritium concentrations of Unit 2 (7.82E-03 pCi/ml) and Unit 3 (8.37E-03 pCi/ml) from the monthly reactor water tritium analysis performed on December 22, 2004, for a result of 8.1 OE-03 pCi/ml. Reactor water tritium concentration was used due to the long half-life of tritium, the negligible impact radwaste processing has on the isotope, and to provide a conservative estimate of the discharge's activity. This value was also comparable to the tritium concentration of the previous discharge (8.05E-03 pCi/ml).
3
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 SUMMATION OF ALL GASEOUS RELEASES IIiries ISt2nd Quairter Qarter 3rd Quarter 4th Quarter Est. Total Frrnr- %
A.
FISSION & ACTIVATION GASES
- 1. Total Release Ci 3.62E+01 2.92E+01 2.86E+01 1.23E+01 20.8%
- 2.
Average Release Rate for the Period VCi/sec 4.61E+00 3.71E+00 3.59E+00 1.55E+00
- 3. Percent of Technical Specification Limit B.
- 1. Total lodine-131 Ci T 8.10E-04 8.82E-04 8.79E-04 T 5.17E-04 15.7%
- 2.
Average Release Rate of 1-131 for the Period pCi/sec 1.03E-04
- 1. 12-04 1.I IE-04 6.51 E-05
- 3.
Percent of Technical Specification Limit u
- 4.
Total lodine-131. Iodine-133 and Iodine-135 Ci 3.39E-03 3.94E-03 4.522-03 1.91E-03 C.
PARTICULATES
- 1. Particulates with half-lives > 8 days Ci 1.58E-03 1.35E-03 1.53E-03 1.092-03 21.5%
- 2.
Average Release Rate for the Period uCi/sec 2.01E-04 1.71E-04 1.93E-04 1.37E-04
- 3.
Percent of Technical Specification Limit I
- 4.
Gross Alpha Radioactivity Ci
<LLD
<LLD
<LLD
<LLD D.
- 1. Total Release l
Ci l 5.62E+00 l 7.072+00 l 6.65E+00 l 4.102+00 l 7.62%
11 AV ---
O D.P1-D.#
T-t fnr. thPPA-1o
'7 lAr-ni Q O4qFTn Q 2'7npn s iA-ni L.
fv{:lV.Il VA L.t, I
fj 1117V i
U.j-UW 0.77JUI J
f 4.I.8C
- 3.
Percent of Technical Specification Limit
- The information is contained in the Radiological Impact on Man section of the report. Total airborne release data are provided which include fission and activation gases, iodines, particulates, and tritium.
4
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 TABLE OF LOWER LIMITS OF DETECTABILITY FOR AIRBORNE EFFLUENTS
- 1.
FISSION/ACTIVATION GASES pCi/ml Kr-87 Kr-88 Xe-133 Xe-133m Xe-135 Xe-138 1.OOE-04 1.00E-04 1.001E-04 I.OOE-04 1.00E-04 1.OOE-04
- 2.
IODINES pCi/ml 1-131 1-133 1.OOE-12 I.OOE-10
- 3.
PARTICULATES pCi/ml Sr-89 Sr-90 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Mo-99 Cs-134 Cs-137 Ce-141 Ce-144 1.00E-I I 1.00E-I I 1.OOE-11 1.00E-I I 1.OOE-I I l.OOE-I I l.OOE-11 1.OOE-I1 1.00E-11 1.00E-I I 1.00E-I I 1.00E-I I
- 4.
OTHER pCi/ml H-3 1.00E-06 Gross Alpha 1.00E-I I The above values are the ODCM-required LLDs. The actual analyses always met the required LLDs.
5
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 GASEOUS EFFLUENTS DOCKET NUMBER: 50-010 Dl MAIN CHIMNEY GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES YX CONTINUOUS MODE NUCLIDES RELEASED UNIT I" QTR 2a QTR 3"f QTR 4h QTR l
TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci l
Kr-85m Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci Xe-135m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 Ci 1-133 Ci 1-135 Ci TOTAL Ci None None None None None PARTICULATES Fe-55 Ci Sr-89 Ci Sr-90 Ci Be-7 Ci Cr-51 Ci Mn-54 Ci 4.08E-06 3.38E-06 2.69E-06 3.06E-06 1.32E-05 Co-57 Ci Co-58 Ci Fe-59 Ci Co-60 Ci 2.12E-06 2.87E-06 2.44E-07 8.82E-07 6.12E-06 Zn-65 Ci Sr-85 Ci Zr-95 Ci Mo-99 Ci Ru-103 Ci Cd-109 Ci A2-11Om Ci Sn-113 Ci 1
Sb-124 Ci Sb-125 Ci Cs-134 Ci Cs-136 Ci Cs-1 37 Ci 2.03E-06 2.03E-06 Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci TOTAL Ci 6.20E-06 6.25E-06 4.96E-06 3.94E-06 2.14E-05
- The activity of this nuclide is less than the LLD.
6
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DI MAIN CHIMNEY GASEOUS EFFLUENTS DOCKET NUMBER: 50-010 GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES xx BATCH MODE NUCLIDES RELEASED UNIT lIt QTR 21i QTR 3rd QTR 4" QTR TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci Kr-85rn Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci Xe-135m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 Ci 1-133 Ci 1-135 Ci TOTAL Ci None None None None None PARTICULATES Fe-55 Ci Sr-89 Ci Sr-90 Ci Be-7 Ci C r-5I C i Mn-54 Ci C o,-57 C i Co-58 Ci Fe-59 Ci Co-60 Ci Zn-65 Ci Sr-85 Ci Zr-95 Ci Mo-99 Ci Ru-103 Ci A2-110m Ci Sn-113 Ci Sb-124 Ci Sb-125 Ci Cs-134 Ci Cs-136 Ci Cs-137 Ci Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci I
TOTAL Ci None None None None None
- The activity of this nuclide is less than the LLD.
7
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 D2/3 REACTOR BUILDING VENT GASEOUS EFFLUENTS DOCKET NUMBERS: 50-237/50-249 YY GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES CONTINUOUS MODE NUCLIDES RELEASED UNIT I of QTR 20" QTR 3"l QTR 4lh QT TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci Kr-85m Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci 3.16E-06 3.16E-06 Xe-133m Ci Xe-1 35 Ci 5.48E-05 2.05E-05 7.54E-05 Xe-135m Ci Xe-138 Ci TOTAL Ci 5A8E-05 None None 2.37E-05 7.85E-05 IODINES 1-131 Ci 2.92E-05 3.74E-06 6.84E-07 2.01 E-05 5.38E-05 1-133 Ci I AOE-04 4.43E-06 2.33E-05 1.68E-04 1-135 Ci 1.19E-04 1.19E-04 TOTAL Ci 2.89E-04 3.74E-06 5.11 E-06 4.34E-05 3.41 E-04 PARTICULATES Fe-55 Ci 2.82E-05 4.06E-05 I.31 E-04 8.06E-05 2.80E-04 Sr-89 Ci Sr-90 Ci Be-7 Ci Cr-51 Ci 2.88E-06 1.21 E-05 1.50E-05 Mn-54 Ci 1.52E-04 7.76E-05 2.48E-04 1.102-04 5.88E-04 Co-57 Ci Co-58 Ci 4.242-06 5.21E-05 5.35E-06 6.17E-05 Fe-59 Ci 4.452-06 2.86E-06 1.14E-05 4.43E-06 2.31 E-05 Co-60 Ci 1.85E-04 7.21 E-05 2.34E-04 1.732-04 6.65E-04 Zn-65 Ci 2.45E-04 W
1.042-04 1.36E-04 4.84E-04 Sr-85 Ci Nb-95 Ci MF-99 Ci 1.94E-05 2.02E-06 2.14E-05 Ru-103 Ci 6.52E-07 6.52E-07 Cd-109 Ci Ae-110m Ci 2.82E-06 2.82E-06 Sn-113 Ci Sn-117m Ci Sb-124 Ci Cs-137 Ci 1.14E-05 2.01E-06 1.34E-05 Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci Hg-203 Ci TOTAL Ci 6.33E-04 1.942-04 8.002-04 5.292-04 2.162-03
- The activity of this nuclide is less than the LLD.
8
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 D2/3 REACTOR BUILDING VENT GASEOUS EFFLUENTS DOCKET NUMBERS: 50-237/50-249 xx GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES BATCH MODE NUCLIDES RELEASED UNIT 1" QTR 2a QTR 3rd QTR 4 h QTR TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci Kr-85m Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci Xe-I 35m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 Ci 1-133 Ci 1-135 Ci TOTAL Ci None None None None None PARTICULATES Fe-55 Ci Sr-89 Ci Sr-90 Ci Be-7 Ci Cr-51 Ci Mn-54 Ci Co-57 Ci Co-58 Ci Fe-59 Ci Co-60 Ci Zn-65 Ci Sr-85 Ci Zr-95 Ci Mo-99 Ci Ru-103 Ci A R-I l1 in C i Sn-l 13 Ci Sb-124 Ci Sb-125 Ci Cs-134 Ci Cs-136 Ci Cs-137 Ci Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci I
TOTAL Ci None None None None None
- The activity of this nuclide is less than the LLD.
9
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 D2/3 MAIN CHIMNEY GASEOUS EFFLUENTS DOCKET NUMBERS: 50-237/50-249 GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES xx CONTINUOUS MODE NUCLIDES RELEASED UNIT Ist QTR 2d QTR 3Yd QTR 4" QTR TOTAL FISSION GASES Ar-41 Ci 3.76E+00 3.69E+00 3.73E+00 2.27E+00 1.35E+01 Kr-85 Ci Kr-85m Ci 9.60E-01 7.81 E-0I 7.94E-01 4.88E-01 3.02E+00 Kr-87 Ci 2.71 E+00 6.90E-01 1.25E+00 3.78E-41 5.03E+00 Kr-88 Ci 2.45E+00 1.11OE+00 9.78E-01
- 6. 1 E-0I 5.14E+00 Xe-131m Ci Xe-133 Ci 1.30E+00 7.50E-01 7.53E-01 4.77E-01 3.28E+00 Xe-133m Ci Xe-135 Ci 7.75E+00 9.90E+00 I.16E+01 2.40E+00 3.16E+01 Xe-135m Ci 3.84E+00 2.47E+00 1.94E+00 1.1 6E+00 9.41 E+00 Xe-138 Ci 1.35E+01 9.77E+00 7.56E+00 4.57E+00 3.54E+01 TOTAL Ci 3.62E+01 2.92E+01 2.86E+01 1.23E+01 1.06E+02 IODINES 1-131 Ci 7.81 E-04 8.78E-04 9.01 E-04 4.97E-04 3.06E-03 1-133 Ci 2.32E-03 2.79E-03 3.09E-03 1.33E-03 9.54E-03 1-135 Ci 2.69E-04 5.25E-04 3.38E-05 8.28E-04 TOTAL Ci 3.1OE-03 3.94E-03 4.52E-03 1.86E-03 1.34E-02 PARTICULATES Fe-55 Ci 6.93E-06 4.23E-05 2.63E-06 5.19E-05 Be-7 Ci Cr-51
'Ci Mn-54 Ci 9.67E-05 1.13E-04 8.43E-05 8.60E-05 3.80E-04 Co-57 Ci Co-58 Ci Fe-59 Ci 5.24E-05 5.24E-05 Co-60 Ci 1.28E-04 1.88E-04 9.99E-05 1.26E-04 5.42E-04 Zn-65 Ci 8.12E-06 8.12E-06 Sr-85 Ci Y-88 Ci Sr-89 Ci 1.53E-04 1.05E-04 1.08E-04 8.25E-05 4.49E-04 Sr-90 Ci Zr-95 Ci Mo-99 Ci 9.62E-06 1.96E-05 6.97E-06 3.62E-05 Ru-103 Ci Cd-109 Ci Ae-1 l Om Ci 4.20E-06 1.42E-05 2.20E-06 I A8E-06 2.21 E-05 Sn-113 Ci Sn-117m Ci Cs-136 Ci Cs-137 Ci 2.62E-07 3.04E-06 3.30E-06 Ba-140 Ci 4.88E-04 4.32E-04 4.1 OE-04 1.79E-04 I.51 E-03 He-203 Ci Ce-141 Ci Ce-144 Ci TOTAL Ci 9AOE-04 9.06E-04 7.27E-04 4.82E-04 3.05E-03
- The activity of this nuclide is less than the LLD.
10
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 D2/3 MAIN CHIMNEY GASEOUS EFFLUENTS DOCKET NUMBERS: 50-237/50-249 GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES XX BATCH MODE NUCLIDES RELEASED UNIT l
l QTR 2"d QTR 3fd QTR 4' QTR l
TOTAL FISSION GASES Ar-41 Ci T
T 1
Kr-85 Ci K ~r-85rn C i Kr-87 Ci Kr.88 Ci Xe-133 Ci Xe-l 33m Ci Xe-135 Ci Xe-l 35m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 C i 1-133 Ci 1-135 C i TOTAL Ci None None None None None PARTICULATES Fe-55 C i Sr-89 Ci Sr-9 0 Ci Be-7 Ci C r-SI C i Mn-54 Ci Co-57 Ci Co-58 Ci FZ-59 Ci Co-60 Ci Zn-65 Ci Sr-85 Ci Zr-95 Ci Mo-99 Ci Ru-103 Ci Ag-140m Ci Sn-113 Ci Sb-124 Ci I
Sb-125 Ci None NonNoe Nne on Cs-134 Ci this nuclide iSlesthn h LD Cs-136 Ci Cs-137 Ci Ba-133 Ci Ba-140 Ci C e-141 C i Ce-144 Ci TOTAL Ci None None None None None
- The activity of this nuclide is less than the LLD.
11
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 CHEMICAL CLEANING BUILDING GASEOUS EFFLUENTS DOCKET NUMBERS: 50-010/50-237/50-249 yy GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES ONTIO TU IS MODE NUCLIDES RELEASED UNIT 15 QTR 2 QTR l
TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci Kr-85m Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci I
Xe-135m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 Ci 1-133 Ci 1-135 Ci TOTAL Ci None None None None None PARTICULATES Fe-55 Ci Sr-89 Ci Sr-90 Ci Be-7 Ci Cr-51 Ci Mn-54 Ci 4.25E-07 1.85E-06 2.26E-06 1.15E-06 5.69E-06 Co-57 Ci Co-58 Ci Fe-59 Ci Co-60 Ci 1.25E-06 3.20E-07 4.51 E-07 2.02E-06 Zn-65 Ci Sr-85 Ci Zr-95 Ci Mo-99 Ci Ru-103 Ci A2-IOm Ci Sn-113 Ci Sb-124 Ci Sb-125 Ci t
Cs-134 Ci Cs-136 Ci Cs-137 Ci Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci TOTAL Ci 4.25E-07 3.1OE-06 2.58E-06 1.60E-06 7.71 E-06
- The activity of this nuclide is less than the LLD.
12
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 CHEMICAL CLEANING BUILDING GASEOUS EFFLUENTS DOCKET NUMBERS: 50-010/50-237/50-249 xx GROUND LEVEL RELEASES SEMI-ELEVATED RELEASES ELEVATED RELEASES BATCH MODE NUCLIDES RELEASED UNIT 1" QTR 2d QTRTRR 4"' QTR TOTAL FISSION GASES Ar-41 Ci Kr-85 Ci Kr-85m Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci Xe-135m Ci Xe-138 Ci TOTAL Ci None None None None None IODINES 1-131 Ci 1-133 C i 1-135 Ci TOTAL Ci None None None None None PARTICULATES Fe-55 Ci Sr-89 Ci Sr-90 Ci Be-7 Ci Cr-51 Ci Mn-54 Ci Co-57 Ci Co-58 Ci Fe-59 Ci Co-60 Ci Zn-65 Ci 1
Sr-85 Ci Zr-95 Ci Nio-99 Ci Ru-103 Ci Ag-Ilrni Ci Sn-113 Ci Sb-124 Ci Sb-125 Ci Cs-134 Ci Cs.136 Ci Cs-137 Ci Ba-133 Ci Ba-140 Ci Ce-141 Ci Ce-144 Ci I
TOTAL Ci None None None None None
- The activity of this nuclide is less than the LLD.
13
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKETNUMBERs: 50-010/50-237/50-249 TABLE OF LOWER LIMITS OF DETECTABILITY FOR LIQUID EFFLUENTS
- 1.
FISSION/ACTIVATION GASES Kr-87 Kr-88 Xe-133 Xe-133m Xe-135 Xe-138
- 2.
- 3.
PARTICULATES Fe-55 Sr-89 Sr-90 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Mo-99 Cs-134 Cs-137 Ce-141 Ce-144 jpCi/ml 1.00E-05 1.001E-05 1.OOE-05 I.OOE-05 1.00E-05 1.00E-05 PCi/ml 11.OOE-06 tiCi/ml 1.OOE-06 5.00E-08 5.00E-08 5.OOE-07 5.OOE-07 5.00E-07 5.OOE-07 5.OOE-07 5.00E-07 5.00E-07 5.00E-07 5.00E-07 5.OOE-06
- 4.
OTHER H-3 Gross Alpha PCi/ml 1.001E-05 1.00E-07 The above values are the ODCM-required LLDs. Except as stated in section 4.g, actual analyses always met the required LLDs.
14
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 SUMMATION OF ALL LIQUID RELEASES itsISt (fnarter 2utd quarter 3rd Cuarter 4th (1narter Est.
Total Errnr %
A.
FISSION & ACTIVATION PRODUCTS
- 1.
Total Release (not including H-3. gases. alpha)
Ci 1.33E-06 7.55E-06
<LLD 1.06E-02 17.4%
- 2.
Average Diluted Conc. During Period IuCim l 7.63E-10 3.76E-09
<LLD 1.65E-08
- 3.
Percent of Technical Specification Limit B.__TRITIUM
- 1.
Total Release Ci
<LLD
<LLD l<LLD 1.95E+01 7.89%
- 2.
Average Diluted Conc. During Release uCi/mi
<LLD
<LLD
<LLD 3.03E-05
- 3.
Percent of Technical Specification Limit l
C.
DISSOLVED AND ENTRAINED GASES
- 1.
Total Release Ci
<LLD
<LLD
<LLD
<LLD 20.3%
- 2.
Average Diluted Conc. During Period J Ci/ml
<LLD
<LLD
<LLD
<LLD
- 3.
Percent of Technical Specification Limit D.
GROSS ALPHA ACTIVITY
- 1.
Total Release Ci l<LLD l<LLD
<LLD
<LLD 5.58%
E.
VOLUME OF WASTE RE ASED Liters l 2.14E+05 l 2.46E+05 1.64E+05 l 3.77E+06 l 1.00%
(prior to dilution)
I I
I I
I F.
VOLUME OF DILUTION WATER USED ies 151+6 171+6 1 730
.030 DURING PERIOD F
~
- The information is contained in the Radiological Impact on Man section of the report.
15
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 RADWASTE LiQUID EFFLUENTS DOCKET NUMBERS: 50-010/50-237/50-249
- 1. Number of Batch Releases:
- 2.
Total Time for Batch Releases:
- 3.
Maximum Time Period for a Batch Release:
- 4. Average Time Period for a Batch Release:
- 5. Minimum Time Period for a Batch Release:
- 6.
Average Stream Flow During Periods of Release 12 4.20E+03 minutes 4.25E+02 minutes 3.50E+02 minutes 3.32E+02 minutes of Effluent into a Flowing Stream:
1.51E+05 Ipm
]RATCH MODlF Ulnit 1' Ouarter 2nd Ouarter 3Id Quarter 4h Quarter Total Fe-55 Ci Sr-89 Ci Sr-90 Ci 1-131 Ci 1-132 Ci_
1-133 Ci 1-134 Ci 1-135 Ci Cr-51 Ci 4.242-04 4.24E-04 Mn-54 Ci 4.28E-03 4.28E-03 Co-58 Ci 1.45E-04 1.45E-04 Fe-59 Ci 3.39E-04 3.39E-04 Co-60 Ci 3.81 E-03 3.81 E-03 Zn-65 Ci 1.43E-03 1.43E-03 As-76 Ci Zr-95 Ci Sr-91 Ci Mo-99 Ci Tc-99m Ci _
Ru-103 Ci Ae-10m Ci 1.40E-04 1.40E-04 Sb-124 Ci 1.96E-05 1.962-05 Cs-134 Ci Cs-136 Ci Cs-137 Ci 1.592-05 1.59E-05 Ba-139 Ci Ba-140 Ci La-140 Ci Ce-141 Ci (above)
Ci None None None 1.06E-02 1.06E-02 T o t a l H-3 Ci 1.942+01 1.94E+01 Kr-87 Ci Kr-88 Ci Xe-133 Ci Xe-133m Ci Xe-135 Ci Xe-138 Ci
- The activity of this nuclide is less than the LLD.
16
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 RADWASTE LIQUID EFFLUENTS DocKET NUMBERS: 50-010/50-237/50-249 CONTTI TOT I MODn Unit I" Ouarter 2ad Ouarter 3'd Ouarter 4h2 Ouarter Total Fe-55 Ci Sr-89 Ci Sr-90 Ci I
I I
I 1-131 Ci 1-132 C i 1-133 Ci 1-1 3 4
C i 1-135 Ci Cr-51 Ci Mn-54 Ci C o-5s~8 Ci
_L Co-60 Ci Zn-65 Ci As-76 ci I_____
Zr-95 Ci Sr-91 Ci Tc-99m Ci Ru-103 Ci Ae-l 10m Ci Sb-124 Ci Cs-134 Ci Cs-136 Ci Cs-137 Ci C s-138 Ci Ba-140 Ci La-140 Ci Ce-141 Ci (above)
Ci None None None None None T o tal H-3 Ci Kr-87 Ci__
K r-88 Ci Xe-133 Ci l
Xe-133m Ci Il-I I
Xe-138 Ci
- The activity of this nuclide is less than the LLD.
17
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-237/50-249 LPCI SYSTEM EFFLUENTS
- 1. Number of Batch Releases:
66
- 2.
Total Time for Batch Releases:
8.18E+01 minutes
- 3.
Maximum Time Period for a Batch Release:
1.24E+00 minutes
- 4.
Average Time Period for a Batch Release:
1.24E+00 minutes
- 5.
Minimum Time Period for a Batch Release:
1.24E+00 minutes
- 6.
Average Stream Flow During Periods of Release of Effluent into a Flowing Stream:
9.46E+04 1pm R ATCH MODE
_I__
tim,,,
.rt
$tn.-t-
- n. n.,_ &
2d A
tt l-"-t~
Tntnl1
^.1 vW-lc LI Wu -,
LI v ulc WU.
vuu.
WLI MI A-Fe-55 Ci Sr-89 Ci Sr-90 Ci 1-131 Ci 1-132 Ci 1-133 Ci 1-134 Ci 1-135 Ci Cr-51 Ci Mn-54 Ci 4.24E-06 8.39E-06 1.26E-05 Co-58 Ci Fe-59 Ci Co-60 Ci 4.64E-06 4.64E-06 Zn-65 Ci As-76 Ci Zr-95 Ci Sr-91 Ci Mo-99 Ci Tc-99m Ci Ru-103 Ci Aj-11Om Ci Sb-124 Ci Cs-134 Ci Cs-136 Ci Cs-137 Ci 1.33E-06 6.12E-06 7.45E-06 Ba-139 Ci 3.31E-06 3.31E-06 Ba-140 Ci La-140 Ci Ce-141 Ci ND-239 Ci (above)
Ci 1.33E-06 7.55E-06 None 1.92E-05 2.80E-05 T o ta l H-3 Ci 7.33E-02 7.33E-02 Kr-87 Ci Kr-88 Ci I
- The activity of this nuclide is less than the LLD.
18
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-237/50-249 LPCI SYSTEM EFFLUENTS
'oNTTJTOT TRS MonF Unit I" Quarter 2nd Quarter 3d Ouarter 4h Quarter Total Fe-55 Ci l
=____
Sr-89 Ci I
I III_
1 Sr-90 Ci 1-131 C i 1.132 C i 1-133 C i 1-134 Ci T
1 1
1-135 Ci Cr-51 Ci Mn-54 Ci Co-58 Ci Fe-59 Ci Co-60 Ci Zn-65 Ci As-76 Ci Zr-95 Ci__
Sr-91 Ci M o-99 Ci Tc-99m Ci Ru-103 Ci Aa-11 Om Ci Sb-124 Ci Cs-134 Ci
==
=
C s-137 Ci__
Cs-138 Ci Ba-140 Ci La-140 Ci Ce-141 Ci Np-239 Ci (above)
Ci None None None None None T otal__
H-3 Ci Kr-87 Ci Kr-88 Ci Xe-133 Ci I
I I
T I
Xe-135 Ci r
X e -
1 3 8 C i
- The activity of this nuclide is less than the LLD.
19
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 UNITS 1, 2 & 3 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A.
SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (NOT IRRADIATED FUEL)
- 1.
Type of Waste Units 12-month period Est. Total Error,
- a.
Spent resins, filter sludges, evaporator bottoms, etc.
I 3.52E+02 Ci 2.49E+03 25%
- b.
Dry compressible waste, contaminated equipment, etc.
m3 3 1.46E+03 25%
Ci 9.01E-01 25__
- c.
Irradiated components, control rods, etc.
i_3_
7.30E+0o Ci 3.13E+04 25%
- d.
Other (describe) - Contaminated Oil, Pump Impeller m 3 1.22E+0225 i
6.92E+0125
- 2.
Estimate of Major Nuclide Composition (by type of waste)
- a.
Spent resins, filter sludges, evaporator bottoms, etc.
Perrent cl Fe-55 Co-60 Mn-54 Zn-65 Cs-137 64.0 22.8 5.45 3.30 2.99 DriHs 1.60E+03 5.70E+02 1.36E+02 8.22E+01 7.46E+0l
- b.
Dry compressible waste, contaminated equipment, etc.
Percent %
Co-60 Mn-54 Fe-55 Cs-137 Ni-63 Zn-65 57.7 18.9 16.3 2.06 1.18 1.12 uries 5.20E-01 1.70E-01 1.47E-01 1.86E-02 1.06E-02 1.00E-02
- c.
Irradiated components, control rods, etc.
Dires Fe-55 Co-60 Ta-182 Ni-63 Mn-54 52.0 37.0 5.76 2.87 2.18 1.63E+04 1.16E+04 1.80E+03 8.98E+02 6.84E+02 20
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBERS: 50-010/50-237/50-249 UNIT 1, 2 & 3 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS (Cont.)
- 2.
Estimate of Major Nuclide Composition (by type of waste) -Continued
- d.
Other - Contaminated Oil, Pump Impeller Perren%
Lrkies Co-60 Fe-55 Mn-54 K-40 Fe-59 Cr-51 36.5 34.9 20.4 1.68 1.63 1.08 2.52E+01 2.42E+01 1.41 E+0 I 1.16E+00 1.13E+00 7.47E-01
- 3.
Solid Waste Description Number nf Shipments 28 13 9
9 6
1 Mode of Trtnsrprtition Motor Freight (exclusive use only)
Motor Freight (exclusive use only)
Motor Freight (exclusive use only)
Motor Freight (exclusive use only)
Motor Freight (exclusive use only)
Motor Freight (exclusive use only)
Destinntinn GTS Duratek, Oak Ridge, TN Envirocare, Clive UT CNS, Barnwell, SC Alaron, Wampum, PA Studsvik Processing Facility, Erwin, TN GTS Duratek, Kingston, TN B.
IRRADIATED FUEL SHIPMENTS (Disposition)
Ntimher nf Shipments MIde nf Trnnsportcitin None C.
CHANGES TO THE PROCESS CONTROL PROGRAM (PCP)
Desttintinn The station Process Control Program was not changed during 2004. Revision 3 of RW-AA-100, "Process Control Program for Radioactive Wastes" was issued on October 25, 2004, and implemented administrative enhancements only, with no significant effect to the Process Control Program.
21
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-010/50-237/50-249 ABNORMAL RELEASES*
A. LIQUID
- 1.
Number of Releases:
1
- 2.
Total Activity Releases:
B. GASEOUS
- 1.
Number of Releases:
- 2.
Total Activity Releases:
9 19F-l1 Ci 1
9)37F-04 Ci A. I On July 31, 2004 samples drawn from site storm sewers and monitoring wells indicated the presence of a leak in the underground High Pressure Coolant Injection (HPCI) suction piping from the contaminated Condensate Storage Tank (CST). This leakage entered the site storm sewer system and was released to the environment via the Unit 1 Intake canal.
Trending data of the Unit I Intake indicated the leak started during the monthly composite sampling period that began on November 12, 2003, which is seen by the tritium concentration divergence (increase in Unit I Intake tritium concentration) between the Units 2 and 3 Intake and the Unit I Intake. The leak was stopped on October 20,2004 when the piping was drained, opened, and an inflatable bladder was installed to seal the system. Tritium and Co-60 were detected in the storm sewer and Wastewater Treatment Facility (WWTF) effluents during this event. To determine tritium activity released during the event, pressure testing was performed and determined that the final leak rate from the HPCI suction piping was 1.31 gallons per minute, and this value was applied to the entire leak duration for conservatism, and tritium concentration of the CST was used as the released concentration. Measured Co-60 concentrations and estimated flow rates for the storm sewer and WVATF effluent were used to determine the Co-60 activity released. For this event, an estimated total of 5.66E-06 Ci of Co-60 and 2.12E+01 Ci of tritium were released to the environment. Due to the date of discovery of the leak, all activity released during this event (in 2003 and 2004) and the resultant dose to the public are attributed to 2004. An estimated 3.08E+00 Ci of tritium (no Co-60) was released during 2003, which would have resulted in an additional total body and organ dose of 1.93E-05 mrem to the child receptor (most conservative receptor). Dose to the public in 2003 was evaluated, and assigning dose from this event to 2003 would not have resulted in the violation of any regulatory or ODCM limit.
B.l An unplanned actuation of the Unit 3 Isolation Condenser occurred at 1327 on May 5,2004 due to a scram of the reactor, and continued until 0644 on May 6, 2004. In the past, low-level contamination was introduced into the shell side of the condenser/heat exchanger, which vents directly to the environment. As a result, actuation of this system prompts sampling and isotopic analysis of the shell side contents and the downspouts under the exhaust. Mn-54, Co-60, and Zn-65 was detected, and the maximum activity concentration of each isotope was used to determine the activity released to the environment. Volume of the release was based on makeup pump run times and changes in shell-side level. For this event, an estimated total activity of 2.37E-04 Ci was released to the environment.
- These releases are included in the Effluents Summation of all Releases Tables and in the Radiological Impact on Man.
22
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DocKET NUMBER: 50-010/50-237/50-249 UNMONITORED RELEASES*
A. LIQUID
- 1.
Number of Releases:
7)
- 2.
Total Activity Releases:
B. GASEOUS
- 1.
Number of Releases:
- 2.
Total Activity Releases:
41 1E-0i (Ni 4
9 91F-04 Cl A. l Water in on-site storm sewers is routinely sampled and analyzed for tritium content. In addition to the HPCI suction leak described under Abnormal Release A. 1, tritium was detected after the leak was repaired in October 2004. The highest storm drain concentrations measured during October, November, and December of 2004 was used to calculate the released activity for each month. The total activity released is based on an estimated typical discharge flow of 10 gallons per minute. An estimated 4.09E-0 1 Ci of tritium was released to the environment from October 20 through December 31, 2004.
A.2 Grab samples of the Wastewater Treatment Facility (WWTF) effluent are routinely collected and analyzed for radioactivity.
Gamma isotopic analysis identified Co-60 and Mn-54 in samples taken in 2004. An estimated total of 1.85E-03 Ci was released via the WWTF during 2004.
B. 1 The Unit I Main Turbine Floor (MTF) is used as an area to work on contaminated equipment. The ventilation, which exhausts through the Unit I Main Chimney, is no longer operational and the floor is at ambient pressure with the outside environment. With radiological work activities being performed on the MTF, the potential exists for airborne activity to be released to the environment through various potential release points. The estimated release through these points is 3.60E-05 Ci of Cs-137 during 2004.
B.2 The Chemistry Laboratory Ventilation system exhausts directly into the environment and is not monitored. The calculated activity released to the environment in 2004 is 1.5 1E-04 Ci of noble gases and 1.36E-05 Ci of iodines and particulates.
B.3 The Unit 2/3 Heating Steam system has low-level contamination present. During operation of the system, some steam is vented directly into the environment. An estimated total activity of 2.65E-06 Ci of Co-60 was released to the environment from this system during 2004.
B.4 Past radiological surveys have identified low-level contamination in the East Turbine Building Ventilation ductwork. This system vents directly to the environment and is not monitored. Surveys in 2004 detected Mn-54, Co-60, and Cs-137 in the system. An estimated total activity of 1.80E-05 Ci was released to the environment from this system during 2004.
- These releases are included in the Effluents Summation of all Releases Tables and in the Radiological Impact on Man.
23
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-010 RADIOLOGICAL IMPACT ON MAN*
UNIT 1
- 1.
Airborne Releases Maximum Doses from Airborne Releases Quarterly Ohi-I" QTR 2nd QTR 3rd QTR 4 th QTR Yearly Obj.
Annual Dose Gamma Air 5.0 mrad O.OOE+00 (e) 0.OOE+00 (e) 0.OOE+00 (e)
O.OOE+00 (e) 10.0 mrad O.OOE+00 (e)
Beta Air 10.0 mrad O.OOE+00 (e)
O.OOE+O0 (e)
O.OOE+O0 (e)
O.OOE+00 (e) 20.0 mrad O.OOE+O0 (e)
Total 2.5 mrem O.OOE+00 (e)
O.OOE+00 (e)
O.OOE+00 (e)
O.OOE+00 (e) 5.0 mrem O.OOE+00 (e)
Skin 7.5 mrem O.OOE+00 (e)
O.OOE+00 (e)
O.OOE+00 (e)
O.OOE+00 (e) 15.0 mrem O.OOE+00 (e)
Organ 7.5 mrem 2.30E-06 (c,t) 9.68E-06 (a) 1.12E-05 (c) 7.86E-04 (i,c) 15.0 mrem 8.01E-04 (c)
Critical Organ Lung GILLI Liver Liver (i)
Liver Liquid Releases Maximum Doses from Aquatic Effluents Quarterly IS QTR 2nf QTd QTR Q 4h QTR Yearly Obj.
Annual Dose O b i.
Total Body 1.5 mrem None None None None 3.0 mrem None (mrem)
None NnNoeoe
.0mm Nn (mrgan 5.0 mrem None None None None 10.0 mrem None 2.
Critical Organ None None None None None
- The doses reported include abnormal and unmonitored releases. These doses are the highest among the four analyzed receptors as described in parentheses [(i)=infant, (c)=child, (t)=teenager, (a)=adult, (e)=every receptor has the same value].
24
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-237 RADIOLOGICAL IMPACT ON MAN*
UNIT 2
- 1.
Airborne Releases Mn~im.,,
Tnncnc frnm A;rhn-a PAlPncnc
.1-
~ilUI I 1 6 llSswlsz Quarterly Obi.
ISt QTR 2nd QTR 3rd QTR 4th QTR Yearly Obj.
Annual Dose Gamma Air 5.0 mrad 1.5 1E-04 (e) 1.19E-04 (e) 8.54E-05 (e) 7.88E-05 (e) 10.0 mrad 4.35E-04 (e)
Beta Air 10.0 mrad 1.12E-05 (e) 9.02E-06 (e) 7.46E-06 (e) 4.98E-06 (e) 20.0 mrad 3.27E-05 (e)
Total 2.5 mrem 1.27E-04 (e) 8.99E-05 (e) 6.44E-05 (e) 5.95E-05 (e) 5.0 rnrem 3.28E-04 (e)
Skin 7.5 mrem 1.27E-04 (e) 9.96E-05 (e) 7.21E-05 (e) 6.51E-05 (e) 15.0 rnrem 3.63E-04 (e)
Organ 7.5 mrem 5.14E-04 (c) 1.63E-03 (c) 3.69E-03 (c) 2.7 1E-03 (c) 15.0 rnrem 8.39E-03 (c)
Critical Organ Lung Thyroid Thyroid Thyroid Thyroid Liquid Releases Maximum Doses from Aauatic Effluents Quarterly IS QTR 2d QTR 3Td QTR t'D Yearly Obj.
Annual Dose O b i.
Total Body 1.5 mrem 4.26E-07 (a) 3.89E-09 (c)
O.OOE+00 (e) 9.06E-05 (c) 3.0 mrem 9.07E-05 (c)
Orgeam) 5.0 mrem 6.67E-07 (t) 5.52E-08 (a)
O.OOE+00 (e)
- 1. 19E-04 (a) 10.0 mrem 1.19E-04 (a) 2.
Critical Organ Liver GI_LLI None GI_LLI GILLI The doses reported include abnormal and unmonitored releases. These doses are the highest among the four analyzed receptors as described in parentheses [(i)=infant, (c)=child, (t)=teenager, (a)=adult, (e)=every receptor has the same value].
25
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-249 RADIOLOGICAL IMPACT ON MAN*
UNIT 3
- 1.
Airborne Releases Maximum Doses from Airborne Releases Quarterly OMi.
In QTR 2nd QTR 3rd QTR 4th QTR Yearly Obj.
Annual Dose Gamma Air 5.0 mrad 6.28E-04 (e) 4.35E-04 (e) 4.20E-04 (e) 1.91 E-04 (e) 10.0 mrad 1.67E-03 (e)
(mrad)
Beta Air 10.0 mrad 4.21E-05 (e) 2.92E-05 (e) 3.17E-05 (e) 1.17E-05 (e) 20.0 mrad 1.15E-04 (e)
Total Body 2.5 mrem 4.74E-04 (e) 3.28E-04 (e) 3.17E-04 (e) 1.44E-04 (e) 5.0 mnrem 1.26E-03 (e)
Skin 7.5 mrem 5.21E-04 (e) 3.60E-04 (e) 3.51E-04 (e) 1.58E-04 (e) 15.0 mrem 1.39E-03 (e)
Organ 7.5 mrem 1.24E-03 (c) 6.71E-03 (c) 4.81E-03 (c) 2.92E-03 (c) 15.0 mrem 1.55E-02 (c)
Critical Organ Thyroid Thyroid Thyroid Thyroid Thyroid Liquid Releases Maximum Doses from Anuatic Effluents Quarterly 1't QTR 2nd QTR 3 rd QTR 4th QTR Yearly Obj.
Annual Dose O b i.
Total Body 1.5 mrem O.OOE+00 (e)
O.OOE+00 (e) 1.33E-04 (c) 9.4 1E-05 (c) 3.0 mrem 2.27E-04 (c)
Organ 5.0 mrem O.OOE+00 (e)
O.OOE+00 (e) 1.33E-04 (c) 1.39E-04 (a) 10.0 mrem 2.5 IE-04 Cc)
Irrrn)I I
I II I
2.
Critical Organ None None GILLI GI_LLI Liver
- The doses reported include abnormal and unmonitored releases. These doses are the highest among the four analyzed receptors as described in parentheses [(i)=infant, (c)=child, (t)=teenager, (a)=adult, (e)=every receptor has the same value].
26
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-010/50-237/50-249 Summary of Offsite Dose Calculation Manual (ODCM) Changes by Dresden Station in 2004 The Dresden ODCM was not revised in 2004.
27
DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DOCKET NUMBER: 50-010/50-237/50-249 METEOROLOGICAL DATA
- 1. The following table represents the percentage of valid hours of recoverable meteorological data for 2004:
Percentage of valid parameter hours in 2004 Parameter lIs Quarter 2nd Quarter 3 rd Quarter 4h Ouarter Year 35 ft. Wind Speed 99.1%
99.9%
97.4%
93.7%
97.5%
150 ft. Wind Sneed 99.6%
99.9%
99.7%
98.7%
99.5%
300 ft. Wind Speed 99.6%
99.9%
99.7%
97.2%
99.1%
35 ft. Wind Direction 99.5%
99.6%
99.0%
99.4%
99.4%
150 ft. Wind Direction 99.6%
99.8%
99.7%
99.5%
99.6%
300 ft. Wind Direction 99.6%
99.8%
99.5%
99.4%
99.6%
35 ft. TempWrature 99.9%
99.9%
99.6%
99.5%
99.7%
150-35 ft. delta T 97.9%
99.9%
99.2%
99.5%
99.1%
300-35 ft. delta T 99.9%
99.9%
99.2%
99.5%
99.6%
- 2.
Dresden station was able to achieve an average of 99.2% meteorological data recovery for the year. This exceeds the minimum criterion of 90% delineated in Regulatory Guide 1.23.
- 3. The remaining pages of this report contain the Dresden Station meteorological site quarterly joint-frequency wind rose tables for 2004.
28
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Extremely Unstable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 2
8 0
0 0
10 NNE 0
2 4
0 0
0 6
NE 0
5 2
0 0
0 7
ENE 0
3 6
0 0
0 9
E 0
1 6
0 0
0 7
ESE 0
0 3
0 0
0 3
SE 0
0 2
1 0
0 3
SSE 0
5 5
10 0
0 20 S
0 4
2 4
8 0
18 SSW 0
2 11 5
1 0
19 SW 0
0 0
0 0
0 0
WSW 0
6 3
0 0
0 9
W 0
1 10 0
5 0
16 WNW 0
3 19 0
1 0
23 NW 0
3 9
6 3
0 21 NNW 0
1 14 2
0 0
17 Variable 0
0 0
0 0
0 0
Total 0
38 104 28 18 0
188 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Moderately Unstable -
15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
1 0
0 0
1 NNE 0
2 1
0 0
0 3
NE 0
0 0
0 0
0 0
ENE 0
0 1
0 0
0 1
E 0
0 3
0 0
0 3
ESE 0
0 0
0 0
0 0
SE 0
0 2
0 0
0 2
SSE 0
1 1
3 0
0 5
S 0
0 4
0 1
0 5
SSW 0
0 0
1 0
0 1
SW 0
1 0
2 1
0 4
WSW 1
0 1
0 1
1 4
W 0
0 2
1 1
0 4
WNW 0
0 5
0 2
0 7
NW 0
0 1
2 0
0 3
NNW 0
1 2
0 0
0 3
Variable 0
0 0
0 0
0 0
Total 1
5 24 9
6 1
46 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Slightly Unstable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 1
2 0
0 0
3 NNE 0
2 0
0 0
0 2
NE 0
0 2
0 0
0 2
ENE 0
0 2
0 0
0 2
E 0
1 0
0 0
0 1
ESE 0
1 3
0 0
0 4
SE 0
2 0
0 0
0 2
SSE 0
1 0
2 0
0 3
S 0
1 2
2 2
0 7
SSW 0
1 1
1 0
0 3
SW 0
0 0
4 0
0 4
WSW 0
0 1
1 0
0
.2 W
0 0
1 0
0 0
1 WNW 0
1 5
3 4
0 13 NW 0
0 3
1 1
0 5
NNW 0
2 2
1 0
0 5
Variable 0
0 0
0 0
0 0
Total 0
13 24 15 7
0 59 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Neutral 150Ft-35Ft Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 Delta-T (F)
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable 15 12 17 30 16 14 4
1 13 8
1 3
12 27 18 35 0
226 9
14 36 31 28 55 10 13 24 32 18 6
49 50 33 46 0
454 0
1 1
0 16 15 8
11 29 21 22 9
24 21 10 11 0
199 0
0 0
0 0
0 0
1 2
7 0
1 3
7 1
0 0
22 28 29 55 64 62 86 26 27 70 72 42 25 91 109 65 96 0
Total 41 5
947 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Slightly Stable 15OFt-35Ft Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 Delta-T (F)
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 3
6 3
5 4
9 9
10 7
1 2
2 4
13 14 16 0
112 20 13 22 17 15 21 6
21 23 15 12 6
36 33 16 21 0
297 5
1 7
0 4
17 15 20 25 24 16 13 36 32 22 9
0 246 0
0 0
0 0
2 1
14 10 10 9
5 21 6
2 0
0 80 28 20 32 22 23 49 31 65 67 57 40 26 97 84 54 46 0
0 741 Hours of calm in Hours of missing Hours of missing this stability class:
wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Moderately Stable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N_____1__
1----
0----
0----
0----
0----
2----
N 1
1 0
0 0
0 2
NNE 0
1 0
0 0
0 2
NE 0
0 0
0 0
0 0
ENE 0
0 0
0 0
0 0
E 0
0 0
0 0
0 0
ESE 7
10 1
0 0
0 18 SE 4
4 0
0 0
0 8
SSE 1
3 1
0 0
0 5
S 3
5 2
0 0
0 10 SSW 5
7 0
0 0
0 12 SW 7
18 6
0 0
0 31 WSW 3
5 2
0 0
0 10 W
3 1
1 0
0 0
5 WNW 3
0 0
0 0
0 3
NW 4
1 0
0 0
0 5
NNW 1
0 0
0 0
0 1
Variable 0
0 0
0 0
0 0
Total 43 56 13 0
0 0
112 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: January - March 2004 Stability Class -
Extremely Stable l5OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N_____0__
0----
0----
0---0 0___
0----
N 0
0 0
0 0
0 0
NNE 0
0 0
0 0
0 0
NE 0
0 0
0 0
0 0
ENE 0
0 0
0 0
0 0
E 0
0 0
0 0
0 0
ESE 0
2 0
0 0
0 2
SE 1
0 0
0 0
0 1
SSE 0
0 0
0 0
0 0
S 2
2 0
0 0
0 4
SSW 0
0 0
0 0
0 0
SW 1
6 0
0 0
0 7
WSW 0
0 0
0 0
0 0
W 0
0 0
0 0
0 0
WNW 0
0 0
0 0
0 0
NW 0
0 0
0 0
0 0
NNW 0
0 0
0 0
0 0
Variable 0
0 0
0 0
0 0
Total 4
10 0
0 0
0 14 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Extremely Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N_____0__
0----
0----
0----
0----
0-0-
N 0
0 0
0 0
0 0
NNE 0
0 1
0 0
0 1
NE 0
0 1
0 0
0 1
ENE 0
0 1
0 0
0 1
E 0
0 1
0 0
0 1
ESE 0
0 0
0 0
0 0
SE 0
0 0
0 0
0 0
SSE 0
0 0
3 1
0 4
S 0
0 0
0 1
1 2
SSW 0
0 0
1 0
0 1
SW 0
0 0
0 0
0 0
WSW 0
0 1
0 0
0 1
W 0
0 0
2 0
2 4
WNW 0
0 0
5 0
2 7
NW 0
0 0
0 1
0 1
NNW 0
0 0
0 0
0 0
Variable 0
0 0
0 0
0 0
Total 0
0 4
11 3
5 23 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
3
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Moderately Unstable -
300Ft-35Ft Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 Delta-T (F)
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 2
0 0
3 2
0 0
0 0
0 0
3 3
0 1
1 0
1s 3
2 0
0 0
0 0
0 1
3 0
1 1
2 1
2 0
16 42 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
3
Dresden Nuclear Station Period of Record: January - March 2004 Stability Class -
Slightly Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
0 3
0 0
3 NNE 0
0 2
2 0
0 4
NE 0
0 2
0 0
0 2
ENE 0
0 3
0 0
0 3
E 0
0 4
1 0
0 5
ESE 0
0 3
1 0
0 4
SE 0
1 1
0 0
0 2
SSE 0
0 0
2 2
0 4
S 0
0 2
1 2
3 8
SSW 0
0 0
4 0
1 5
SW 0
0 1
0 4
2 7
WSW 0
0 2
0 1
0 3
W 0
0 3
5 2
3 13 WNW 0
0 4
7 0
1 12 NW 0
0 2
5 2
0 9
NNW 0
0 1
4 2
0 7
Variable 0
0 0
0 0
0 0
Total 0
1 30 35 15 10 91 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
3
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Neutral 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 11 6
20 5
0 42 NNE 2
6 14 16 8
1 47 NE 1
8 17 31 4
0 61 ENE 4
22 42 23 3
0 94 E
2 4
20 19 14 3
62 ESE 0
10 23 41 16 0
90 SE 0
3 8
13 3
0 27 SSE 2
2 11 14 18 7
54 S
2 4
20 18 34 8
86 SSW 0
7 24 27 22 4
84 SW 0
3 8
10 19 7
47 WSW 4
9 7
8 12 10 50 W
1 9
22 67 55 24 178 WNW 2
10 29 48 23 24 136 NW
.2 8
22 38 19 9
98 NNW 3
11 31 47 21 8
121 Variable 0
0 0
0 0
0 0
Total 25 127 304 440 276 105 1277 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
3 Hours of missing stability measurements in all stability classes:
3
Dresden Nuclear Station Period of Record: January - March 2004 Stability Class -
Slightly Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 4
8 6
1 0
20 NNE 0
7 8
11 2
0 28 NE 0
4 12 4
0 0
20 ENE 0
2 22 0
0 0
24 E
0 0
13 3
0 0
16 ESE 0
2 7
8 10 0
27 SE 1
2 12 11 12 1
39 SSE 1
12 9
21 10 4
57 S
1 9
9 21 28 7
75 SSW 1
3 16 18 25 11 74 SW 2
2 5
17 20 1
47 WSW 1
2 13 20 11 0
47 W
0 3
7 32 13 0
55 WNW 1
4 9
25 2
0 41 NW 2
3 10 16 8
0 39 NNW 0
2 11 8
2 0
23 Variable 0
0 0
0 0
0 0
Total 11 61 171 221 144 24 632 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
5 Hours of missing stability measurements in all stability classes:
3
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Moderately Stable 300Ft-35Ft Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 Delta-T (F)
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 3
0 1
0 0
2 1
2 0
0 2
7 1
3 2
0 0
24 2
1 0
0 0
1 3
9 2
1 3
4 5
0 4
1 0
36 0
0 0
0 1
1 6
1 3
1 7
10 0
0 0
0 0
30 1
0 0
0 0
0 1
0 5
0 4
2 0
0 0
0 0
13 6
1 1
1 1
4 11 12 10 2
16 23 6
3 6
1 0
0 104 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
3
Dresden Nuclear Station Period of Record: January -
March 2004 Stability Class -
Extremely Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N_____0__
0----
0----
0----
0----
0----
0----
N 0
0 0
0 0
0 0
NNE 0
0 0
0 0
0 0
NE 0
0 0
0 0
0 0
ENE 0
0 0
0 0
0 0
E 0
0 0
0 0
0 0
ESE 0
0 0
0 0
0 0
SE 0
0 0
0 0
0 0
SSE 0
0 0
0 0
0 0
S 0
0 0
1 0
0 1
SSW 0
0 1
0 0
0 1
SW 0
0 0
0 0
0 0
WSW 0
0 1
1 0
0 2
W 0
0 0
0 0
0 0
WNW 0
0 0
0 0
0 0
NW 0
0 0
0 0
0 0
NNW 0
0 0
0 0
0 0
Variable 0
0 0
0 0
0 0
Total 0
0 2
2 0
0 4
Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
3
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Extremely Unstable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
2 15 15 2
0 0
34 NNE 1
22 9
2 0
0 34 NE 0
20 3
6 0
0 29 ENE 1
17 5
0 0
0 23 E
0 11 7
0 0
0 18 ESE 0
1 2
1 0
0 4
SE 0
3 3
0 0
0 6
SSE 0
6 1
1 0
0 8
S 0
3 4
0 0
0 7
SSW 0
4 8
7 5
0 24 SW 0
6 8
14 7
0 35 WSW 1
8 24 8
1 0
42 W
1 15 10 6
0 0
32 WNW 0
12 9
10 1
0 32 NW 0
14 10 3
0 0
27 NNW 1
15 12 6
1 0
35 Variable 0
0 0
0 0
0 0
Total 7
172 130 66 15 0
390 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April - June 2004 Stability Class -
Moderately Unstable l5OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 0
3 0
0 0
4 NNE 2
2 0
0 0
0 4
NE 0
3 1
2 0
0 6
ENE 0
2 3
0 0
0 5
E 0
2 0
0 0
0 2
ESE 0
0 1
1 0
0 2
SE 0
1 2
1 0
0 4
SSE 0
2 1
0 0
0 3
S 0
3 5
2 0
0 10 SSW 0
2 4
4 2
0 12 SW 1
3 2
6 2
0 14 WSW 0
6 7
2 0
0 15 W
2 4
2 0
0 0
8 WNW 0
5 1
0 0
0 6
NW 0
7 1
1 0
0 9
NNW 0
2 1
1 0
0 4
Variable 0
0 0
0 0
0 0
Total 6
44 34 20 4
0 108 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Slightly Unstable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 3
0 0
0 0
4 NNE 3
1 1
0 0
0 5
NE 0
3 1
0 0
0 4
ENE 1
4 2
0 0
0 7
E 1
5 1
0 0
0 7
ESE 1
8 3
1 0
0 13 SE 0
0 4
0 0
0 4
SSE 0
5 0
0 0
0 5
S 0
6 0
3 0
0 9
SSW 0
3 5
4 1
0 13 SW 0
2 4
3 1
0 10 WSW 1
3 6
2 0
0 12 W
0 5
3 0
0 0
8 WNW 0
2 0
0 0
0 2
NW 1
3 4
0 0
0 8
NNW 2
1 1
0 0
0 4
Variable 0
0 0
0 0
0 0
Total 11 54 35 13 2
0 115 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Neutral 1SOFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
5 19 3
0 0
0 27 NNE 5
13 7
0 0
0 25 NE 1
20 20 1
0 0
42 ENE 1
31 16 1
0 0
49 E
1 24 13 2
0 0
40 ESE 0
10 15 3
0 0
28 SE 1
10 10 10 0
0 31 SSE 3
21 10 5
0 0
39 S
4 11 23 15 3
0 56 SSW 4
14 25 18 8
3 72 SW 4
11 10 22 1
0 48 WSW 3
11 17 13 1
0 45 W
0 13 6
8 0
0 27 WNW 1
15 10 5
0 0
31 NW 1
15 3
2 0
0 21 NNW 4
16 4
1 1
0 26 Variable 0
0 0
0 0
0 0
Total 38 254 192 106 14 3
607 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Slightly Stable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
15 27 8
1 0
0 51 NNE 14 21 1
0 0
0 36 NE 7
25 9
0 0
0 41 ENE 9
21 2
0 0
0 32 E
6 32 4
0 0
0 42 ESE 4
24 7
0 0
0 35 SE 7
12 6
0 0
0 25 SSE 5
21 9
2 0
0 37 S
11 34 35 15 0
0 95 SSW 13 34 31 10 16 1
105 SW 13 19 23 8
3 0
66 WSW 9
11 7
0 0
0 27 W
12 18 4
1 0
0 35 WNW 8
25 4
1 0
0 38 NW 12 19 4
0 0
0 35 NNW 8
18 8
1 0
0 35 Variable 0
0 0
0 0
0 0
Total 153 361 162 39 19 1
735 Hours of calm in Hours of missing Hours of missing this stability class:
wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Moderately Stable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
4 1
0 0
0 0
5 NNE 1
1 0
0 0
0 2
NE 2
2 0
0 0
0 4
ENE 0
0 0
0 0
0 0
E 0
2 0
0 0
0 2
ESE 3
4 0
0 0
0 7
SE 1
6 1
0 0
0 8
SSE 1
4 0
0 0
0 5
S 3
3 1
0 0
0 7
SSW 12 7
1 0
0 0
20 SW 12 23 1
0 0
0 36 WSW 9
6 0
0 0
0 15 W
6 6
1 0
0 0
13 WNW 6
1 0
0 0
0 7
NW 16 0
0 0
0 0
16 NNW 9
0 0
0 0
0 9
Variable 0
0 0
0 0
0 0
Total 85 66 5
0 0
0 156 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Extremely Stable 150Ft-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 0
0 0
0 0
1 NNE 0
0 0
0 0
0 0
NE 0
0 0
0 0
0 0
ENE 0
0 0
0 0
0 0
E 0
0 0
0 0
0 0
ESE 0
0 0
0 0
0 0
SE 0
1 0
0 0
0 1
SSE 0
0 0
0 0
0 0
S 3
1 0
0 0
0 4
SSW 6
2 0
0 0
0 8
SW 9
7 0
0 0
0 16 WSW 2
0 0
0 0
0 2
W 3
0 0
0 0
0 3
WNW 2
2 0
0 0
0 4
NW 7
0 0
0 0
0 7
NNW 4
0 0
0 0
0 4
Variable 0
0 0
- 0.
0 0
0 Total 37 13 0
0 0
0 50 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: April - June 2004 Stability Class -
Extremely Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Tot tal N
0 NNE 0
NE 0
ENE 0
E 0
ESE 0
SE 0
SSE 0
S 0
SSW 0
SW 0
WSW 0
W 0
WNW 0
NW 0
NNW 0
Variable 0
3 9
1 0
0 1
0 0
0 0
0 3
0 2
1 6
0 26 3
2 0
0 0
0 0
0 0
0 0
1 0
1 2
4 0
13 3
2 3
0 0
0 0
0 1
0 0
0 0
3 5
0 0
17 10 14 5
0 0
1 0
0 1
0 0
7 3
8 8
12 0
Total
. 0 5
69 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
2
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Moderately Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 2
1 7
4 0
14 NNE 1
0 6
3 1
0 11 NE 0
2 3
1 2
0 8
ENE 0
3 0
0 0
0 3
E 0
0 6
0 0
0 6
ESE 0
0 1
0 0
0 1
SE 0
0 0
0 0
0 0
SSE 0
2 1
0 0
0 3
S 0
2 0
0 0
0 2
SSW 0
0 0
3 1
2 6
SW 0
1 1
0 2
0 4
WSW 0
1 2
4 2
0 9
W 0
0 2
1 1
2 6
WNW 0
0 4
3 1
1 9
NW 0
2 5
2 1
0 10 NNW 0
2 0
4 0
1 7
Variable 0
0 0
0 0
0 0
Total 1
17 32 28 15 6
99 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
2
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Slightly Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
5 3
0 0
8 NNE 0
0 4
2 1
0 7
NE 0
5 3
2 0
0 10 ENE 0
6 5
2 0
0 13 E
0 1
5 2
0 0
8 ESE 0
0 0
2 0
0 2
SE 0
1 3
0 0
0 4
SSE 0
0 3
1 0
0 4
S 0
0 1
2 0
2 5
SSW 0
0 2
5 2
4 13 SW 0
1 1
5 2
7 16 WSW 0
3 3
10 1
2 19 W
0 4
8 3
2 1
18 WNW 0
3 5
4 0
2 14 NW 0
1 5
0 1
1 8
NNW 0
3 5
2 1
2 13 Variable 0
0 0
0 0
0 0
Total 0
28 58 45 10 21 162 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
1 Hours of missing stability measurements in all stability classes:
2
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Neutral 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 6
23 14 3
0 47 NNE 2
7 16 24 6
0 55 NE 0
7 21 28 9
0 65 ENE 2
9 43 13 2
0 69 E
1 11 23 16 0
0 51 ESE 1
9 15 13 5
0 43 SE 0
8 10 12 14 1
45 SSE 2
6 17 4
5 0
34 S
0 8
15 20 16 9
68 SSW 2
7 13 31 26 14 93 SW 0
12 15 19 23 18 87 WSW 1
5 20 19 11 13 69 W
1 10 23 8
12 3
57 WNW 1
4 13 10 4
4 36 NW 0
1 19 14 4
2 40 NNW 2
5 10 13 2
3 35 Variable 0
0 0
0 0
0 0
Total 16 115 296 258 142 67 894 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
1 Hours of missing stability measurements in all stability classes:
2
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Slightly Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 1
2 3
2 5
0 1
0 0
1 0
1 0
0 1
0 0
17 3
5 8
14 13 5
9 4
2 4
9 2
1 4
6 1
0 90 7
22 9
11 22 11 19 6
15 16 25 13 16 6
13 7
0 218 24 17 8
6 6
4 6
16 41 44 32 12 16 16 13 8
0 269 8
1 5
0 1
1 2
2 45 28 20 2
1 6
0 7
0 129 2
45 0
47 0
33 0
33 0
47 0
21 0
37 1
29 11 114 19 112 4
90 0
30 0
34 0
32 0
33 1
24 0
0 38 761 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
5 all stability classes:
2
Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Stable
- 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 1
2 6
1 0
10 NNE 0
2 3
2 2
0 9
NE 0
2 2
0 0
0 4
ENE 0
3 0
1 0
0 4
E 0
1 1
0 0
0 2
ESE 0
0 1
1 0
0 2
SE 1
2 3
5 0
0 11 SSE 0
0 1
1 0
0 2
S 1
0 1
3 4
0 9
SSW 1
1 2
5 0
0 9
SW 1
1 2
17 1
0 22 WSW 0
1 2
11 0
0 14 W
1 5
10 3
0 0
19 WNW 0
2 7
4 1
0 14 NW 1
2 7
2 0
0 12 NNW 1
3 3
1 0
0 8
Variable 0
0 0
0 0
0 0
Total 7
26 147 62 9
0 151 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
4 Hours of missing stability measurements in all stability classes:
2
Dresden Nuclear Station Period of Record: April -
June 2004 Stability Class -
Extremely Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
0 2
0 0
2 NNE 0
0 0
0 0
0 0
NE 0
0 0
0 0
0 0
ENE 0
0 0
0 0
0 0
E 0
0 0
0 0
0 0
ESE 0
1 0
0 0
0 1
SE 0
1 0
0 0
0 1
SSE 0
0 0
1 0
0 1
S 0
0 0
0 1
0 1
SSW 0
0 0
3 1
0 4
SW 0
1 1
3 0
0 5
WSW 0
4 3
1 0
0 8
W 0
1 1
2 0
0 4
WNW 0
0 3
4 0
0 7
NW 0
0 0
0 0
0 0
NNW 0
0 1
0 0
0 1
Variable 0
0 0
0 0
0 0
Total 0
8 9
16 2
0 35 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
2
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Extremely Unstable 150Ft-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction N
NNE NE ENE E
WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24
> 24 Total 3----
3 3
0 2
1 2
1 1
1 1
2 0
2 4
4 0
13 34 36 20 10 8
5 1
6 9
11 16 13 20 12 38 0
0 13 16 5
6 1
7 4
9 20 22 9
20 6
5 1
0 0
0 0
0 0
2 2
0 1
7 5
2 0
0 0
0 0
16 0
50 0
55 0
25 0
18 0
10 0
16 0
8 0
16 0
31 0
41 0
32 0
35 0
28 0
21 0
43 0
0 0
445 30 252 144 19 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Moderately Unstable -
15OFt-35Ft Winds Measured at 35 Feet Delta-T (F)
Wind Speed (in mph)
Wind Direction 1-3 4-7 N
NNE NE ENE E
WNW NW NNW Variable 1
0 3
2 1
2 2
5 5
1 2
7 6
4 1
5 0
8-12 13-18 19-24
> 24 0
0 0
0 0
0 0
0 2
0 0
0 1
0 0
0 1
0 0
0 1
0 0
0 4
2 0
0 2
0 0
0 3
0 0
0 6
0 0
0 3
0 0
0 2
1 0
0 5
0 0
0 5
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 Total 2----
2 7
3 2
4 8
7 10 7
5 13 11 10 2
5 0
Total 13 47 35 3
0 0
98 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
Stability Class -
Slightly Unstable Winds Measured at Wind Speed September 2004 15OFt-35Ft 35 Feet (in mph)
Delta-T (F)
Wind Direction N------
N NNE NE ENE E
WNW NW NNW Variable 1-3 4-7 0
1 1
1 0
1 1
0 2
1 1
0 1
0 1
2 0
2 0
2' 3
1 5
4 4
4 5
3 2
4 2
5 2
0 8-12 13-18 19-24
> 24 Total 0____
0----
0----
0----
2----
0 0
0 0
2 0
0 0
0 1
0 0
0 0
3 0
0 0
0 4
1 0
0 0
2 1
0 0
0 7
2 0
0 0
7 3
1 0
0 8
7 1
0 0
14 1
1 0
0 6
2 0
0 0
6 4
0 0
0 6
5 0
0 0
10 0
0 0
0 2
0 0
0 0
6 0
0 0
0 4
0f o
0o 0f 0
Total 13 48 26 3
0 0
90 Hours of calm in this stability class:
Hours of missing Hours of missing wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
Stability Class -
Neutral Winds Measured at Wind Speed September 2004 15OFt-35Ft 35 Feet (in mph)
Delta-T (F)
Wind Direction 1-3 4-7 N
NNE NE ENE E
WNW NW NNW Variable 3
2 4
1 5
5 5
0 6
7 9
4 2
8 6
6 0
13 5
22 14 23 12 26 27 25 28 21 9
22 12 9
6 0
8-12 13-18 19-24
> 24 0
0 0
0 2
0 0
0 4
0 0
0 1
0 0
0 1
0 0
0 4
0 0
0 13 0
0 0
14 1
0 0
19 7
0 0
6 6
1 0
9 0
0 0
10 1
0 0
14 0
0 0
5 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
Total 16 9
30 16 29 21 44 42 57 48 39 24 38 25 15 12 0
Total 73 274 102 15 1
0 465 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Slightly Stable 15OFt-35Ft Winds Measured at 35 Feet Wind Speed (in mph)
Wind Delta-T (F)
Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable 14 12 13 5
3 11 7
10 22 18 22 10 10 12 30 25 0
12 0
13 0
36 0
13 0
29 0
27 3
12 6
21 20 32 22 24 6
13 2
12 1
28 5
14 2
16 0
12 0
0 0
0 0
0 0
0 0
0 7
0 1
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 26 0
25 0
49 0
18 0
32 0
41 0
25 0
51 0
83 0
48 0
38 0
23 0
43 0
28 0
46 0
37 0
0 Total 224 314 67 8
0 0
613 0
Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Moderately Stable 15OFt-35Ft Winds Measured at 35 Feet Wind Speed (in mph)
Delta-T (F)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NNW Variable 10 8
2 0
4 19 16 17 15 12 20 10 15 13 13 21 0
4 0
2 0
0 0
1 0
2 0
34 0
8 0
8 1
11 2
3 0
10 0
3 0
1 0
2 0
1 0
2 0
0 0
0 0
0 0
0 0
0 0
0 0
0
.0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
14 0
10 0
2 0
1 0
6 0
53 0
24 0
26 0
28 0
15 0
- 30 0
13 0
16 0
15 0
14 0
23 0
0 Total 195 92 3
0 0
0 290
.Hours of calm in this stability class:
Hours of missing Hours of missing wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
Stability Class -
Extremely Stable Winds Measured at September 2004 15OFt-35Ft 35 Feet Delta-T (F)
Wind Speed (in mph)
Wind Direction N
NNE NE ENE E
1-3 0
1 1
1 4
4-7 8-12 13-18 19-24
> 24 Total 0
0 0
1 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
1 0
1 0
2 0
2 3
5 12 3
1 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 22 0
11 0
3 0
3 0
5 0
12 WSW W
10 2
3 10 6
0 1
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
11 0
2 0
3 NW 0
10 0
0 0
6 0
Variable 0
0 0
0 Total 79 17 0
0 0
0 96 Hours of calm in Hours of missing Hours of missing this stability class:
wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Extremely Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 N
0 NNE 0
NE 0
ENE 0
E 0
ESE 0
SE 0
SSE 0
S 0
SSW 0
SW 0
WSW 0
W 0
WNW 0
NW 0
NNW 0
Variable 0
4-7 1
2 4
0 1
1 0
0 0
0 0
1 1
1 2
0 0
8-12 13-18 19-24
> 24 Total 4
8 9
6 1
1 0
0 0
2 1
2 1
1 0
7 0
2 7
2 0
1 0
0 0
0 0
2 1
0 0
1 2
0 0
13 0
0 0
0 0
0 0
0 0
1 0
0 0
0 0
7 30 15 6
3 2
0 0
0 2
3 5
2 2
3 9
0 Total 0
14 43 18 14 0
89 Hours of calm in this stability class:
Hours of missing Hours of missing wind measurements in this stability measurements in 0
stability class:
0 all stability classes:
17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Moderately Unstable -
300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction N
NNE NE ENE E
WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24
> 24 Total 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 4
3 1
1 6
4 4
6 2
3 3
1 1
3 2
2 0
0 2
3 1
1 2
1 1
2 1
1 8
2 3
1 5
4 7
2 5
2 0
1 2
1 0
1 2
1 4
1 0
0 0
8 16 12 7
6 2
7 4
4 11 9
14 8
4 3
6 0
Total 0
34 53 26 6
2 121 Hours of calm in Hours of missing Hours of missing this stability class:
wind measurements in this 0
stability class:
0 stability measurements in all stability classes:
17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Slightly Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 2
3 2
3 6
1 3
7 1
2 3
1 0
3 0
3 3
0 7
- 7 1
0 2
3 1
7 6
2 7
3 2
7 4
6 6
1 2
3 4
5 5
2 5
1 1
4 4
3 0
0 0
0 7
o 12 0
12 0
6 0
4 0
6 0
15 0
6 0
14 0
13 0
14 0
16 0
12 0
12 0
7 0
11 0
0 0
167 2
1 47 74 33 12 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
Hours of missing stability measurements in all stability classes:
I17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Neutral 30OFt-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 NNE 2
NE 0
ENE 1
E 1
ESE 0
SE 2
SSE 1
S 2
SSW 4
SW 4
WSW 3
W 3
WNW 3
NW 0
NNW 1
Variable 0
6 7
9 9
9 15 20 17 23 18 9
12 6
13 11 8
0 11 13 21 15 7
8 16 21 31 22 19 10 11 13 9
13 0
240 13 9
11 1
12 7
14 14 22 12 10 11 43 8
3 5
0 195 3
7 5
0 0
0 0
11 5
4 4
9 1
3 0
0 0
52 0
33 0
38 0
46 0
26 0
29 0
30 0
52 1
65 1
84 1
61 0
46 0
45 0
64 0
40 0
23 0
27 0
0 3
709 1
Total 27 192 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
Hours of missing stability measurements in all stability classes:
17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Slightly Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Peet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 1
7 12 11 4
0 1
13 32 7
0 4
13 11 0
3 20 18 0
0 1
6 12 22 1
1 5
14 5
2 1
9 12 9
1 1
10 9
16 9
0 14 23 33 16 2
6 24 25 4
1 6
18 13 1
0 4
15 4
1 1
4 18 29 0
2 7
10 13 0
3 5
21 9
4 1
4 7
4 2
0 0
0 0
0 0
35 0
53 0
28 0
41 0
42 0
27 0
32 1
46 3
89 0
61 0
39 0
24 0
52 0
32 0
42 0
18 0
0 4
661 18 112 239 236 0
52 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in stability class:
2 all stability classes:
17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Moderately Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable 0
0 0
0 1
1 2
4 1
0 1
2 7
3 1
1 0
0 3
0 11 2
2 5
1 0
4 3
7 4
10 7
22 9
15 4
9 6
7 3
6 7
13 6
4 5
- 14 3
3 o
0 9
19 3
0 1
11 14 10 21 19 8
4 2
3 2
3 0
0 15 0
34 0
7 0
6 0
6 0
29 0
30 0
46 0
48 0
36 0
22 0
15 0
29 0
16 0
22 0
11 0
0 Total 24 64 131 129 24 0
372 Hours of calm in this stability class:
0 Hours of missing wind measurements in this sitability class:
1 Hours of missing stability measurements in all stability classes:
17
Dresden Nuclear Station Period of Record: July -
September 2004 Stability Class -
Extremely Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction N
NNE NE ENE E
WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24
> 24 Total 2____
4----
0----
2 4
0 2
0 0
2 0
0 1
0 0
0 0
0 1
1 2
1 2
4 4
2 5
1 1
1 0
1 1
1 5
0 0
2 1
0 1
2 0
3 0
2 1
0 0
0 0
6 2
2 1
0 0
6 7
12 4
5 6
5 3
4 3
0 Total 7
17 23 16 3
0 66 Hours of calm in this stability class:
0 Hours of missing wind measurements in this so Hours of missing stability measurements in a:
tability class:
0 11 stability classes:
17
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Extremely Unstable 150Ft-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 5
2 0
0 0
7 NNE 0
0 0
0 0
0 0
NE 0
2 6
0 0
0 8
ENE 0
5 3
0 0
0 8
E 0
5 8
1 0
0 14 ESE 0
0 3
1 0
0 4
SE 0
0 0
0 0
0 0
SSE 0
0 0
0 0
0 0
S 0
0 0
0 0
0 0
SSW 0
2 0
3 0
0 5
SW 0
1 0
1 0
0 2
WSW 1
1 5
3 0
0 10 W
0 1
10 3
0 0
14 WNW 0
4 7
0 0
0 11 NW 0
5 2
5 0
0 12 NNW 0
8 13 4
0 0
25 Variable 0
0 0
0 0
0 0
Total 1
39 59 21 0
0 120 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Moderately Unstable -
l50Ft-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 1
1 0
0 0
2 NNE 0
1 0
0 0
0 1
NE 0
1 1
0 0
0 2
ENE 0
0 0
0 0
0 0
E 0
2 2
0 0
0 4
ESE 0
1 1
0 0
0 2
SE 0
0 1
0 0
0 1
SSE 0
0 2
0 0
0 2
S 0
1 1
0 0
0 2
SSW 0
1 0
0 0
0 1
SW 0
0 0
0 0
0 0
WSW 1
5 4
0 0
0 10 W
0 1
4 1
0 0
6 WNW 0
1 2
0 0
0 3
NW 0
0 1
0 0
0 1
NNW 0
1 2
1 0
0 4
Variable 0
0 0
0 0
0 0
Total 1
16 22 2
0 0
41 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Slightly Unstable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 0
0 0
0 0
1 NNE 0
1 0
0 0
0 1
NE 0
3 1
2 0
0 6
ENE 0
1 0
0 0
0 1
E 1
2 2
0 0
0 5
ESE 0
1 3
0 0
0 4
SE 0
0 0
0 0
0 0
SSE 0
2 2
0 0
0 4
S 0
0 3
2 0
0 5
SSW 0
1 1
2 0
0 4
SW 0
0 0
3 0
0 3
WSW 0
3 10 0
0 0
13 W
0 1
3 0
0 0
4 WNW 0
0 1
0 0
0 1
NW 0
4 0
2 0
0 6
NNW 0
1 1
0 0
0 2
Variable 0
0 0
0 0
0 0
Total 2
20 27 11 0
0 60 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: October -
I Stability Class -
Neutral Winds Measured at 35 Wind Speed (i, Wind Direction 1-3 4-7 8-12 13-December2004 150Ft-35Ft Delta-T (F) iFeet rn mph)
-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable 5
11 3
2 7
1 4
4 3
0 1
2 2
3 0
2 0
10 20 34 35 24 12 8
15 16 9
11 13 8
19 19 11 0
12 2
6 18 34 18 7
36 27 20 16 9
24 43 21 30 0
2 4
7 0
1 1
3
.12 16 19 16 7
32 13 10 24 0
0 0
2 0
0 0
0 0
8 2
1 2
1 11 1
0 0
29 37 52 55 66 32 22 67 72 50 45 36 67 89 51 67 0
Total 50 264 323 167 28 5
837 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: October -
I Stability Class -
Slightly Stable Winds Measured at 35 Wind Speed (i:
Wind Direction 1-3 4-7 8-12 13 December2004 15OFt-35Ft Delta-T (F)
Feet n mph)
-18 19-24
> 24 Tot tal N
NNE NE ENE E
WNW NW NNW Variable 11 14 4
5 3
5 3
3 6
7 1
3 11 3
8 12 0
19 16 21 21 28 31 21 27 39 21 24 4
16 20 19 27 0
3 7
5 0
6 5
18 16 31 25 19 5
31 25 6
6 0
0 1
1 0
1 0
2 5
17 2
6 3
2 1
1 1
0 33 38 31 26 38 41 44 51 98 63 52 15 60 49 34 46 0
Total 99 354 208 43 14 1
719 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
0
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Moderately Stable 15OFt-35Ft Delta-T (F)
Winds Measured at 35 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
3 4
0 0
0 0
7 NNE 7
4 0
0 0
0 11 NE 3
2 0
0 0
0 5
ENE 1
0 0
0 0
0 1
E 1
1 0
0 0
0 2
ESE 1
12 0
0 0
0 13 SE 5
1 0
0 0
0 6
SSE 8
7 0
0 0
0 15 S
4 1
0 0
0 0
5 SSW 8
7 3
0 0
0 18 SW 6
24 7
0 0
0 37 WSW 1
10 1
0 0
0 12 W
2 2
0 0
0 0
4 WNW 1
4 0
0 0
0 5
NW 6
1 0
0 0
0 7
NNW 9
13 0
0 0
0 22 Variable 0
0 0
0 0
0 0
Total 66 93 11 0
0 0
170 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: October -
I Stability Class -
Extremely Stable Winds Measured at 35 Wind Speed (i Wind Direction 1-3 4-7 8-12 13-N 3
0 0
NNE 2
0 0
NE 1
0 0
ENE 1
0 0
E 5
0 0
ESE 8
9 0
SE 3
1 0
SSE 0
0 0
S 1
2 0
SSW 11 2
0 SW 2
7 0
WSW 5
0 0
W 2
0 0
WNW 0
0 0
NW 5
0 0
NNW 2
0 0
Variable 0
0 0
December2004 l50Ft-35Ft Delta-T (F)
Feet
.n mph)
-18 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
, 0 19-24 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0
> 24 Total 0
3 0
2 0
1 0
1 0
5 0
17 0
4 o
0 0
3 0
13 o
9 0
5 0
2 0
0 0
5 0
2 0
0 0
72 Total 51 21 0
Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
0
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Extremely Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
0 2
0 0
2 NNE 0
0 0
0 0
0 0
NE 0
0 1
1 0
0 2
ENE 0
0 2
0 0
0 2
E 0
0 4
3 0
0 7
ESE 0
0 0
0 0
0 0
SE 0
0 0
0 0
0 0
SSE 0
0 0
0 0
0 0
S 0
0 0
0 0
0 0
SSW 0
0 0
0 0
0 0
SW 0
0 0
0 0
0 0
WSW 0
0 0
0 0
0 0
W 0
0 0
0 0
0 0
WNW 0
0 0
0 0
0 0
NW 0
0 3
0 1
0 4
NNW 0
0 1
2 1
0 4
Variable 0
0 0
0 0
0 0
Total 0
0 11 8
2 0
21 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Moderately Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 1
1 1
0 0
3 NNE 0
0 1
0 0
0 1
NE 0
0 1
3 1
0 5
ENE 0
0 4
0 0
0 4
E 0
0 5
1 0
0 6
ESE 0
0 1
1 0
0 2
SE 0
0 0
0 0
0 0
SSE 0
0 0
1 0
0 1
S 0
0 0
0 0
0 0
SSW 0
0 0
1 2
1 4
SW 0
2 0
0 0
0 2
WSW 0
1 3
2 2
0 8
W 0
0 6
1 1
0 8
WNW 0
1 6
0 0
0 7
NW 0
0 1
0 3
0 4
NNW 0
0 5
3 2
1 11 Variable 0
0 0
0 0
0 0
Total 0
5 34 14 11 2
66 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Slightly Unstable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 0
2 0
1 0
3 NNE 0
0 0
0 0
0 0
NE 0
1 1
0 0
0 2
ENE 0
0 2
0 0
0 2
E 0
1 6
3 0
0 10 ESE 0
0 3
1 0
0 4
SE 0
0 1
0 0
0 1
SSE 0
0 1
2 0
0 3
S 0
2 0
3 1
2 8
SSW 0
0 2
1 3
0 6
SW 0
1 0
0 1
0 2
WSW 1
1 3
1 4
0 10 W
0 1
8 2
2 0
13 WNW 0
2 6
2 0
0 10 NW 0
0 1
1 0
1 3
NNW 0
0 6
1 1
1 9
Variable 0
0 0
0 0
0 0
Total 1
9 42 17 13 4
86 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
0 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Neutral 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 7
12 16 6
2 44 NNE 0
9 35 7
5 6
62 NE 0
8 30 12 7
3 60 ENE 0
31 33 21 1
0 86 E
1 8
31 26 11 1
78 ESE 1
4 11 10 1
0 27 SE 2
5 8
16 6
0 37 SSE 3
9 19 35 11 3
80 S
1 8
21 33 10 23 96 SSW 0
3 11 37 23 1
75 SW 0
5 22 16 24 3
70 WSW 0
12 21 11 6
10 60 W
1 2
13 31 33 14 94 WNW 0
2 16 42 17 17 94 NW 1
4 16 31 9
12 73 NNW 0
6 19 25 35 12 97 Variable 0
0 0
0 0
0 0
Total 11 123
.318 369 205 107 1133 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
18 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Slightly Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
1 7
9 11 3
0 31 NNE 0
4 4
20 3
0 31 NE 4
4 8
8 0
0 24 ENE 1
4 15 0
0 0
20 E
2 2
8 17 0
0 29 ESE 0
1 3
22 0
0 26 SE 3
3 4
20 0
0 30 SSE 1
8 13 21 9
0 52 S
1 7
11 15 8
11 53 SSW 0
3 17 34 10 10 74 SW 0
3 8
25 15 5
56 WSW 0
4 11 17 4
1 37 W
0 0
10 28 6
0 44 WNW 0
3 4
13 13 0
33 NW 0
4 7
15 4
1 31 NNW 1
5 11 16 4
0 37 Variable 0
0 0
0 0
0 0
Total 14 62 143 282 79 28 608 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
32 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Moderately Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
0 1
10 8
2 0
21 NNE 0
0 3
11 1
0 15 NE 0
1 1
6 0
0 8
ENE 3
0 4
0 0
0 7
E 0
3 1
0 0
0 4
ESE 1
0 0
2 3
0 6
- 0.
2 3
5 0
0 10 SSE 0
5 5
5 0
0 15 S
0 5
6 14 1
0 26 SSW 0
1 3
3 3
0 10 SW 0
1 1
8 7
0 17 WSW 0
0 3
6 3
0 12 W
0 0
4 5
0 0
9 WNW 0
1 3
2 0
0 6
NW 0
0 2
2 1
0 5
NNW 0
2 7
2 1
0 12 Variable 0
0 0
0 0
0 0
Total 4
22 56 79 22 0
183 Hours of calm in this stability class:
0 Hours of missing wind measurements in this stability class:
1 Hours of missing stability measurements in all stability classes:
11
Dresden Nuclear Station Period of Record: October -
December2004 Stability Class -
Extremely Stable 300Ft-35Ft Delta-T (F)
Winds Measured at 300 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24
> 24 Total N
NNE NE ENE E
WNW NW NNW Variable Total 0
1 0
0 1
1 3
0 1
3 0
5 2
1 0
0 0
18 2
0 0
0 2
0 1
1 9
3 2
0 1
0 0
0 0
21 0
2 0
6 0
0 0
0 0
3 0
1 0
6 0
1 0
10 0
8 0
3 0
5 0
3 0
1 0
0 0
0 0
0 0
49 Hours of calm in this stability class:
Hours of missing wind measurements in this Hours of missing stability measurements in 0
stability class:
0 all stability classes:
11