ML061240558

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2005 Annual Radioactive Effluent Release Report; Effluent and Waste Disposal Annual Report
ML061240558
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 04/28/2006
From:
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
FOIA/PA-2010-0209
Download: ML061240558 (97)
v • d • e


Text

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

Supplemental Information Regulatory Limits

a. Gascous Effluents
1) The air dose due to noble gases released in gaseous effluents, from each reactor unit, from the site shall be limited to the following:

a) During any calendar quarter: Less than or equal to 5 mrad for gamma radiation and less than or equal to 10 mrad for beta radiation, and b) During any calendar year: Less than or equal to 10 mrad for gamma radiation and less than or equal to 20 mrad for beta radiation.

2) The dose to an individual from radioiodines and radioactive materials in particulate form, and radionuclides, other than noble gases, with half-lives greater than eight days in gaseous effluents released, from each reactor unit, from the site shall be limited to the following:

3) a) During any calendar quarter: Less than or equal to 7.5 mRems to any organ, and b) During any calendar year: Less than or equal to 15 mRems to any organ.

b. Liquid Effluents
1) The dose or dose commitment to an individual from radioactive materials in liquid effluents released, from each reactor unit, from the site shall be limited:

a) During any calendar quarter: Less than or equal to 1.5 mRem to the total body and to less than or equal to 5 mRem to any organ, and b) During any calendar year: Less than or equal to 3 mRem to the total body and to less than or equal to 10 mRem to any organ.

c. Total Dose -
1) The dose or dose commitment to any member of the public, due to releases or radioactivity and radiation, from uranium fuel cycle sources shall be limited to less than or equal to 25 mRern to the body or any organ (except the thyroid, which shall be limited to less than or equal to 75 mRem) over 12 consecutive months.

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

Supplemental Information (continued)

2. Allowable Concentrations -
a. Gaseous Effluents I) The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following:

a) For noble gases: Less than or equal to 500 mRem/year to the total body and less than or equal to 3000 mRem/year to the skin, and b) For all radioiodines and for all radioactive materials in particulate form, and radionuclides, other than noble gases, with half-lives greater than eight days: Less than or equal to 1500 mRem/year to any organ via the inhalation pathway.

b. Liquid Effluents
1) The concentration of radioactive material released from the site shall be limited to ten (10) times the concentrations specified in 10 CFR Part 20, Appendix B, Table 11, Column 2 for radio iuclides other than dissolved or .entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to the following:

Nuclide DWC (uci/ml)

Kr-85m 2.00E-04 Kr-85 5.00E-04 Kr-87 4.OOE-05 Kr-88 9.00E-05 Ar-4 1 7.00E-05 Xe-131m 7.OOE-04 Xe-133m 5.OOE-04 Xe-133 6.OOE-04 Xe-135m 2.OOE-04 Xe-135 2.OOE-04

3. Average Energy Not applicable - average energy is no longer used to determine dose to the public.
4. Measurements and Approximations of Total Radioactivity
a. Gaseous Effluents
1) Containment Vent and Purge System is sampled by grab sample which is analyzed for Principal gamma emitters and H-3.
2) Main Vent Stack is sampled by grab sample, which is analyzed for principal gamma emitters and H-3.
3) Standby Gas Treatment System is sampled by grab sample, which is analyzed for principal gamma emitters.

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

Supplemental Information (continued)

4) All release types as listed in I and 2 above, at the vent stack and as listed in 3 above, at the Standby Gas Treatment System wvhenever there is flow, are continuously sampled by charcoal cartridge and particulate filter paper, which are analyzed for iodines and principal gamma emitters. Particulate filter papers are composited and analyzed for gross alpha, Sr-89 and Sr-90. Noble gases, gross beta and gamma are continuously monitored by noble gas monitors for the vent stack and the standby gas treatment system.
b. Liquid Effluents
1) Batch waste release tanks are sampled each batch for principal gamma emitters, 1-131, dissolved and entrained noble gases, H-3, gross alpha, Sr-89, Sr-90 and Fe-55.
2) Continuous releases are sampled continuously in proportion to the rate of flow of the effluent stream and by grab sample. Samples are analyzed for principal gamma emitters, 1-131, dissolved and entrained noble gases, H-3, gross alpha, Sr-89, Sr-90 and Fe-55.
5. Batch Releases
a. Gaseous
1) Number of batch releases: None
2) Total time period for batch releases: N/A
3) Maximum time period for a batch release: N/A
4) Average time period for batch releases: N/A
5) Minimum time period for a batch release: N/A
b. Liquid I) Number of batch releases: None
2) Total time period for batch releases: Min. N/A
3) Maximum time period for a batch release: Min. N/A
4) Average time period for batch releases: Min. N/A
5) Minimum time period for a batch release: Min. N/A
6) Average stream flow during periods of release of effluent into a flowing stream: gpm N/A

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

Supplemental Information (continued)

6. Abnormal Releases
a. Gaseous
1) Number of releases: None
2) Total activity released: N/A
b. Liquid
1) Number of releases: None
2) Total activity released: N/A
7. Process Control Program The: c were no changes to the Process Control Program during this time period.
8. Effluent Monitoring Instrumentation timeclocks and sample anomalies.

Time clocks:

There were no effluent monitoring time clocks exceeded in 2005 Sirnple anomalies:

There were no sampling anomalies experienced during 2005

9. Offsite Dose Calculation Manual Revisions.

Two revisions were made to the LaSalle ODCM during the reporting period. Revision 8 replaced a 72 hr shutdown timeclock associated with inoperable pre-treat rad monitors with compensatory sampling requirements.

The second revision of 2005 standardized the ODCM under ITS format JAW Exelon Corporate Procedures.

Through this process LaSalle's ODCM became CY-LA-170-301 Rev. 0. The most recent revision of LaSalle's ODC'M is included as Appendix A.

LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

UNITS ONE AND TWO DOCKET NUMBERS 50-373 AND 50-374 GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Estimated I Units I st Qtr I 2nd Qtr I 3rd Qtr I 4th Qtr ]Total Error %

A. Fission and Activation Gas Releases

l. Total Release Activity Ci 2.82E+03 1.86E+03 1.76E+03 1.74E+03 3.50E+01
2. Average Release Rate uCi/sec 3.62E+02 2.37E+02 2.21 E+02 2.19E+02
3. Percent of Technical Specification  % * **

B. Iodine Releases I. Total 1-13:1 Activity Ci 3.85E-02 1.91 E-02 1.80E-02 1.33E-02 3.50 E+01

2. Average Release Rate uCi/sec 4.95E-03 2.43E-03 2.26E-03 1.67E-03
3. Percent of Technical Specification  %
  • Limit C. Particulate (> 8 day half-life) Releases
1. Gross Activity Ci 6.57E-03 1.07E-02 5.54E-03 1.35E-03 3.301,+01
2. Average Release Rate uCi/sec 8.45E-04 1.36E-03 6.97E-04 1.70E-04
3. Percent of Technical Specification
  • Limit
3. Gross Alpha Activity Ci <1.00E-11 <1.OOE-11 <1.00E-11 <1.00E-11 D. Tritium Releases lI.TotalReleaseActivity l Ci l 1.47E+01 1.16E+01 2.05E+01 T1.49E+01 l 2.10L+01_l
2. Average Release Rate uCi/sec 1.89E+00 1.48E+00 2.58E+00 1.87E+00
3. Percent of Technical Specification  % 1
  • l
  • 11 Lim it I _ _ I __ I I_ I_ _

"*" This information is contained in the Radiological Impact on Man section of the report.

"<" Indicates activity of sample is less than LLD given in uCi/ml

LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

GASEOUS EFFLUENTS-ELEVATED RELEASE Unit I and Unit 2 Continuous Mode l Units I I" Qtr I 2nd Qtr l 3"' Qtr I 4th Qtr

1. Fission and Activation Gas Releases Ar-4 I Ci 2.64E-04 2.04E-04 <1.0Oe-4 1.45E-04 Kr-85 Ci <1.OOe-4 <1.OOe-4 <1.OOe-4 <1.OOe-4 Kr-85m Ci 4.70E+02 4.84E+02 4.55E+02 4.46E+02 Kr-87 Ci 1.73E+02 1.34E+02 1.63E+02 1.29E+02 Kr-88 Ci 8.09E+02 8.19E+02 7.72E+02 7.96E+02 Xe-131rm Ci <1.OOe-4 <1.OOe-4 <1.OOe-4 <1.OOe-4 Xe-133 Ci 6.11E+02 4.24E+02 3.62E+02 3.72E+02 Xe-133m Ci <1.OOe-4 <1.OOe-4 <1.OOe-4 <1.OOe-4 Xe-135 Ci 5.07E+02 8.12E-05 <1.OOe-4 <1.OOe-4 Xe-135m Ci 2.50E+02 <1.OOe-4 9.74E+00 <1.OOe-4 Xe-138 Ci 9.30E-05 1.74E-04 <1.OOe-4 <1.OOe-4 TOTAL Ci 2.82E+03 1.86E+03 1.76E+03 1.74E+03
2. Iodine Releases 1-131 Ci 3.85E-02 1.91E-02 1.80E-02 1.33E-02 1-132 Ci 3.08E-02 3.44E-02 2.29E-02 1.48E-02 1-133 Ci 8.20E-02 6.37E-02 5.27E-02 3.77E-02 1-134 Ci <1.OOe-11 <1.OOe-1l 1.43E-03 7.84E-03 1-135 Ci 7.72E-02 6.09E-02 5.28E-02 3.33E-02 TOTAL IODINE Ci 2.29E-01 1.78E-01 1.47E-01 1.07E-01 TOTAL 1-131,1-133,1-135 Ci 1.99E-01 1.44E-01 1.23E-01 8.43E-02
3. Particulate (> 8 day half-life) Releases Cr-51 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Mn-54 Ci 1.25E-07 3.18E-04 1.25E-04 <1.OOe-11 Co-57 Ci <1.OOe-11 <1.00e-11 <1.00e-11 <1.00e-11 Fe-55 Ci <1.OOe-1I <1.OOe-11 <1.OOe-11 <1.OOe-11 Co-58 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Fe-59 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 I<1.OOe-11 Co-60 Ci 4.40E-04 1.48E-03 5.92E-04 6.29E-05 Zn-65 Ci <1.00e-1 1 <1.00e-11 <1.00e-I 1 <1.00e-I 1 Sr-89 Ci 2.16E-03 1.24E-03 i.22E-03 3.18E-04 Sr-90 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Zr-95 Ci <1 .OOe-1 1 <1.OOe-1 1 <1.OOe-1 1 <1.OOe-1 I Mo-99 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Ru-103 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Sn-I 17m Ci <1.OOe-11 <1.OOe-1I <1.OOe-11 <1.OOe-11 Cs-134 Ci <1.OOe-11 <1.00e-1I <1.00e-11 <1.00e-11 Cs-137 Ci <1.OOe-11 <1.OOe-11 <1.OOe-11 <1.OOe-11 Ba\La-140 Ci 3.96E-03 7.61 E-03 3.59E-03 9.63E-04 Ce-141 Ci <1.OOe-11 3.89E-05 <1.OOe-11 <1.OOe-11 Ce-144 Ci <1.OOe-11 <1.OOe-I1 <1.OOe-11 <1.OOe-1I TOTAL PARTICULATES Ci 6.57E-03 1.07E-02 5.54E-03 1.35E-03
4. Tritium Releases I.Total Releas. Activity Ci 1.47E+01 1.16E+01 2.05E+01 1.49E+01

"<" Indicates activity of sample is less than LLD given in uCi/ml

LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

LIQUID RELEASES UNIT I and UNIT 2 SUMMATION OF ALL LIQUID RELEASES Estimated I Units I 1st Qtr I 2nd Qtr I 3rd Qtr I 4th Qtr Total Enor %

A. Fission and Activation Products

1. Total Activity Released Ci <LLD <LLD <LLD <LLD N1,
2. Average Concentration Released uCi/mI <LLD <LLD <LLD <LLD
3. Percent of Applicable Limit  %

B. Tritium I. Total Activity Released

2. Average Concentration Released
3. Percent of Applicable Limit I Ci uCi/mI

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD NIA C. Dissolved Noble Gases

1. Total Activity Released Ci <LLD <LLD <LLD <LLD N/A 3
2. Average Concentration Released uCi/ml <LLD <LLD <LLD <LLD
3. Percent oflApplicable Limit  %

D. Gross Alpha

1. Total Activity Released (estimate) Ci <LLD <LLD <LLD <LLD N/j=
2. Average Concentration Released uCi/ml <LLD <LLD <LLD <LLD
3. Percent of Applicable Limit  % l E. Volumeof Liquid WVaste to Discharge liters 0.OOE+00 0.00E+00 0.OOE+00 0.OOE+00 N/}

F.V 'olumeof Dilution W'ater liters O.OOE+00 0.OOE+00 0.OOE+00 0.00E+00 l Nf/

"*" This information is contained in the Radiological Impact on Man section of the report.

"<" Indicates activity of sample is less than LLD given in uCi/ml

LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

LIQUID RELEASES UNIT I and UNIT 2 BATCH MODE lNuclides From Batch Releases Units I st Qtr I 2nd Qtr I 3rd Qtr I 4th Qtr H-3 Ci <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD Fe-55 Ci <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD Co-60 Ci <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD Ag-l I Om Ci <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD Sb- 124 Ci <LLD <LLD <LLD <LLD 1-131 Ci <LLD <LLD <LLD <LLD Cs-] 34 Ci <LLD <LLD <LLD <LLD Cs-I 37 Ci <LLD <LLD <LLD <LLD Ba\La-1 40 Ci <LLD <LLD <LLD <LLD Ce- 141 Ci <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD W--187 Ci <LLD <LLD <LLD <LLD TOTAL Ci None None None None Xc-131m Ci <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD <LLD Xe-133m Ci <LLD <LLD <LLD <LLD Xc-135 Ci <LLD <LLD <LLD <LLD Xe-135nI Ci <LLD <LLD <LLD <LLD TOTAL Ci None None None None

"<" Indicates activity of sample is less than LLD given in uCi/ml

LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

LIQUID RELEASES UNIT 1 and UNIT 2 CONTINUOUS MODE Nuclides From Continuous Releases Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Gross Alpha Ci <1.OOE-07 <I.OOE-07 <l.OOE-07 <l.OOE-07 H-3 Ci <1.OOE-05 <l.OOE-05 <l.OOE-05 <1.OOE-05 Cr-51 Ci <5.00E-07 <5.00E-07 <5.OOE-07 <5.OOE-07 Mn-54 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Fe-55 Ci <I.OOE-06 <1.OOE-06 <1.OOE-06 <l.OOE-06 Co-58 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Fe-59 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Co-60 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Zn-65 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Sr-89 Ci <5.OOE-08 <5.OOE-08 <5.OOE-08 <5.OOE-08 Sr-90 Ci <5.OOE-08 <5.OOE-08 <5.OOE-08 <5.OOE-08 Nb-95 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Zr-95 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Mo-99 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Tc-99m Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.00E-07 Ag-I99m Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Sb-122 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.00E-07 Sb- 124 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 1-131 Ci <5.00E-06 <'.OOE-06 <5.00E-06 <5.00E-06 Cs-134 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Cs-137 Ci <5.OOE-07 <5.00E-07 <5.OOE-07 <5.00E-07 Ba\La-140 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Ce-I 41 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 Cc-144 Ci <5.OOE-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 W-187 Ci <5.00E-07 <5.OOE-07 <5.OOE-07 <5.OOE-07 TOTAL Ci <LLD <LLD <LLD <LLD Xe-131m Ci <1.OOE-05 <l.OOE-05 <1.OOE-05 <I.OOE-05 Xc-133 Ci <I.OOE-05 <I.OOE-05 <I.OOE-05 <1.OOE-05 Xe-133m Ci <I.OOE-05 <l.OOE-05 <I.OOE-05 <I.OOE-05 Xe-135 Ci <I .OOE-05 <I .OOE-05 <1.OOE-05 <I .OOE-05 Xe- 135m Ci <I.OOE-05 <I.OOE-05 <I.OOE-05 <1.OOE-05 TOTAL Ci <LLD <LLD <LLD <LLD

"<" Indicates activity of sample is less than LLD given in uCi/ml

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS

EFFLUENT AN[) WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS FIRST QUARTER A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL

1. Spent resins, filter sludges, evaporator bottoms, etc.
a. Quantity shipped cu.m. 9.67E+00
b. Total activity Ci 3.55E+01
c. Major nuclides (estimate %)

Cs-137 5.26E+01 Cs-134 2.87E+01 Co-60 8.52E+00 Fe-55 3.15E+00 Zn-65 3.11 E+00

d. Shipment type LSA, Type A
2. Dry compressible waste, contaminated equipment, etc.
a. Quantity shipped cu.m. 6.52E+02
b. Total activity Ci 4.22E-01
c. Major nuclides (estimate %)

Co-60 4.75E+01 Mn-54 1.69E+01 Fe-55 1.56E+01 Ni-63 1.30E+01 Zn-65 4.59E+00

d. Shipment type LSA

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS FIRST QUARTER

3. Other
a. Quantity shipped cu.m. 0.OOE+00
b. Total activity Ci 0.OOE+00
c. Major nuclides (estimate %) N/A
d. Shipment type N/A
4. Irradiated Components
a. Quantity shipped cu.m 0.OOE+00
b. Total activity Ci 0.OOE+00
c. Major nuclides (estimate %) N/A
d. Number of shipments 0
e. Mode of Transportation N/A
f. Destination N/A
5. Solid Waste Disposition Number of Shipments Transportation Mode Destination 10 Truck ALARON Corporation 2 Truck Barnwell Waste Management Facility TOTAL THIS QUARTER 12 Estimated total error % for spent resins, filter sludges, evaporator bottoms, etc. (Jan-Dec) 2.50E+0 I Estinated total error % for dry compressible waste, contaminated equipment, etc. (Jan-Dec) 2.50E+0 I Estimated total error % for irradiated components (Jan-Dec) N/A IRRADIATED FUEL SHIPMENTS None

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS SECOND QUARTER A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL Spent resins, filter sludges, evaporator bottoms, etc.

a. Quantity shipped cu.m. 3.53E+01
b. Total activity Ci 2.1OE+02
c. Major nuclides (estimate %)

Co-60 4.52E+01 Cs-137 2.34E+01 Cs-134 1.37E+01 Fe-55 7.41 E+00 Mn-54 3.77E+00

d. Shipment type LSA, Type A, Type B
e. Solidification agent None
2. Dry compressible waste, contaminated equipment, etc.
a. Quantity shipped cu.m. 3.26E+02
b. Total activity Ci 1.80E-01
c. Major nuclides (estimate %)

Co-60 4.97E+01 Mn-54 2.49E+01 Fe-55 1.83E+01 Ni-63 1.98E+00 Zn-65 1.20E+00

d. Shipment type LSA

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS SECOND QUARTER

3. Other
a. Quantity shipped cu.m. 0.00E+00
b. Total activity Ci 0.OOE+00
c. Major nuclides (estimate %) N/A
d. Shipment type N/A
4. Irradiated Components
a. Quantity shipped cu.m 0.OOE+00
b. Total activity Ci 0.OOE+00 Major nuclides (estimate%) N/A
d. Number of shipments N/A
e. Mode of Transportation N/A
f. Destination N/A
5. Solid Waste Disposition Number of Shipments Transportation Mode Destination 3 Truck Barnwell Waste Management Facility Truck Duratek-Gallaher Rd, TN 4 Truck Envirocare of Utah 5 Truck ALARON Corporation TOTAL THISQUARTER 13 Estiriated total error % for spent resins, filter sludges, evaporator bottoms, ctc. (Jan-Dec) 2.50E+OI Estiriated total error % for dry compressible waste, contaminated equipment, etc. (Jan-Dec) 2.50E+01 Estimated total error % for irradiated components (Jan-Dec) N/A B. IRRADIATED FUEL SHIPMENTS None

EFFLUENT AND)WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS THIRD QUARTER A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL Spent resins, filter sludges, evaporator bottoms, etc.

a. Quantity shipped cu.m. 1.49E+01
b. Total activity Ci 3.85E+02
c. Major nuclides (estimate %)

Co-60 6.65E+01 Fe-55 2.13E+01 Zn-65 4.36E+00 Mn-54 3.31 E+00 Ni-63 3.02E+00

d. Shipment type LSA, Type B
e. Solidification agent N/A
2. Dry compressible waste, contaminated equipment, etc.
a. Quantity shipped cu.m. 2.17E+02
b. Total activity Ci 1.11 E-01
c. Major nuclides (estimate %)

Co-60 5.08E+01 Mn-54 2.43E+01 Fe-55 1.86E+01 Ni-63 2.04E+00 Zn-65 1.15E+00

d. Shipment type LSA

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS THIRD QUARTER

3. Other
a. Quantity shipped cu.m. 8.61E+0I
b. Total activity Ci 6.44E-02 C. Major nuclides (estimate %)

Fe-55 4.56E+01 Ce-144 2.86E+0I Mn-54 1.27E+01 Co-60 7.28E+00 Cs-137 4.17E+00

d. Shipment type LSA
4. Irradiated Components
a. Number of shipments 0
b. Mode of Transportation N/A
c. Destination N/A
5. Solid Waste Disposition Number of Shipments Transportation Mode Destination 4 Truck Barnwell Waste Management Facility 3 Truck ALARON Corporation Truck Duratek-Gallaher Rd, TN Truck Envirocarc of Utah, Bulk Truck Envirocare of Utah, Containerized TOTAL THIS QUARTER 10 Estimated total error % for spent resins, filter sludges, evaporator bottoms, etc. (Jan-Dcc) 2.50E+01 Estimated total error % for dry compressible waste, contaminated equipment, etc. (Jan-Dec) 2.50E+01 Estimated total error % for irradiated components (Jan-Dec) N/A B. IRRADIATED FUEL SHIPMENTS None

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS FOURTH QUARTER A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL

1. Spent resins, filter sludges, evaporator bottoms, etc.
a. Quantity shipped cu.m. 1.17E+01
b. Total activity Ci 2.42E+00 C. Major nuclides (estimate %)

Co-60 5.25E+01 Fe-55 1.80E+01 Cs-137 1.31E+0I Zn-65 6.19E+00 Cs-134 2.27E+00

d. Shipment type LSA
e. Solidification agent None
2. I)ry compressible waste, contaminated equipment, etc.
a. Quantity shipped cu.m. 7.83E+01
b. Total activity Ci 5.15E-01
c. Major nuclides (estimate %)

Co-60 4.93E+01 Mn-54 2.50E+01 Fe-55 1.82E+01 Ni-63 1.96E+00 Fe-59 1.27E+00

d. Shipment type LSA

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

SOLID WASTE AND IRRADIATED FUEL SHIPMENTS FOURTH QUARTER

3. Other
a. Quantity shipped cu.m. O.OOE+00 1). Total activity Ci 0.OOE+00
c. Major nuclides (estimate %)

N/A

d. Shipment type N/A
4. Irradiated Components E. Number of shipments 0 tb. Mode of Transportation N/A
c. Destination N/A
5. Solid Waste Disposition Number of Shipments Transportation Mode Destination I Truck ALARON Corporation Truck Duratek-Bear Creek, TN 2 Truck Envirocare of Utah TOTAL TIllS QUARTER 4 Estimated total error % for spent resins, filter sludges, evaporator bottoms, etc. (Jan-Dec) 2.50E+01 Estimated total error % for dry compressible waste, contaminated equipment, etc. (Jan-Dec) 2.50E+01 Estimated total error % for other irradiated components (Jan-Dec) N/A B. IRRADIATED FUEL SHIPMENTS None

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

RADIOLOGICAL IMPACT ON MAN MAXIMUM DOSES RESULTING FROM RELEASES AND COMPLIANCE STATUS

                • T** ****
  • DELIVER TO HEALTH PHYSICS
  • AIRBORNE Effluents- 10CFR50 Listing 29-mar-2006 :l4:55:04 STATION: LASALLE STATION UNIT: 1 PERIOD: 01/M1/05 12/31/05 NAME: ODCMtLAS REPORT: ANNJAL MODE: ACTUAL

i- - -

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 INFANT RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNIJAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 4.11E-02 3 . 75E-02 3.60E-02 3. 63E-02 1.5:LE-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WS11 )

BETA AIR 1.73E-03 1.26E-03 1.27E-03 1.20E-03 5.45E-03 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

TOT. BODY 3.11E-02 2.83E-02 2.72E-02 2.75E-02 1. 14E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW1 )

SKIN 3.29E-02 2.99E-02 2.87E-02 2.89E-02 1.20E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WS11 )

ORGAN 1.94E-03 3 .72E-02 4.61E-02 1.32E-02 9. 84E-02 (MREM) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10CFR 50 APP. I INFANT RECEPTOR

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 0. 82 0.75 0. 72 0.73 10.0) 1.51 BETA AIR (MRAD) 10.0 0. 02 0 . 01 0.01 0.01 20. 0 0. 03 TOT. BODY (M:REM) 2.5 1.24 1.13 1. 09 1.10 5.() 2.28 SKIN (MREM) 7.5 0.44 0.40 0.38 0.39 15. 0 0.80 ORGAN (MREM) 7.5 0.03 0.50 0.61 0.18 15. o 0.66 THYROID THYROID THYROID THYROID THYROID R:ESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 CHILD RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 4.11E-02 3.75E-02 3.60E-02 3.63E-02 1. 5:LE-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WSW1 )

BETA AIR 1.73E-03 1.26E-03 1.27E-03 1.20E-03 5.45E-03 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ES]3 )

TOT. BODY 3.11E-02 2.83E-02 2.72E-02 2.75E-02 1.14E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSWq )

SKIN 3.29E-02 2.99E-02 2.87E-02 2. 89E-02 1.20E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSWq )

ORGAN 1. 68E-03 3.94E-02 5.36E-02 1.31E-02 1. 03E-01 (MREM) (NNE ) (ESE ) (NNE ) (ESE ) (NNE )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10CFR 50 APP. I CHILD RECEPTOR

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 0.82 0.75 0. 72 0.73 10. ) 1.51 BETA AIR (MRAD) 10.0 0. 02 0.01 0.01 0.01 20 . C 0.03 TOT. BODY (MREM) 2.5 1.24 1.13 1.09 1.10 5. 0 2.28 SKIN (MREM) 7.5 0.44 0.40 0.38 0.39 15. 0 0.80 ORGAN (MREM) 7.5 0.02 0.53 0.72 0.18 15. 1 0. 72 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNJAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 4.11E-02 3. 75E-02 3.60E-02 3.63E-02 1. 5:LE-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WS1w )

BETA AIR 1.73E-03 1.26E-03 1.27E-03 1.20E-03 5.4!,E-03 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

TOT. BODY 3.11E-02 2.83E-02 2.72E-02 2.75E-02 1. 14E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WS1W )

SKIN 3.29E-02 2.99E-02 2.87E-02 2.89E-02 1.21)E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WS1W )

ORGAN 1.32E-03 2.45E-02 3.32E-02 8. 09E-03 6. 7:LE-02 (MREM) (NNE ) (NNE ) (NNE ) (NNE ) (NNE] )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10CFR 50 APP. I TEENAGER RECEPTOR

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 0. 82 0.75 0. 72 0.73 10. 0 1.51 BETA AIR (MRAD) 10.0 0. 02 0.01 0.01 0.01 20. 0 0. 03 TOT. BODY (KM:REM) 2.5 1.24 1.13 1.09 1.10 5.() 2.28 SKIN (MREM) 7.5 0.44 0.40 0.38 0.39 15.() 0.80 ORGAN (MREM) 7.5 0. 02 0.33 0.44 0.11 15. ) 0.45 THYROID THYROID THYROID THYROID THYROID R3SULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 ADULT RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 4. 11E-02 3.75E-02 3.60E-02 3.63E-02 1. 5:LE-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WSlq )

BETA AIR 1.73E-03 1.26E-03 1.27E-03 1.20E-03 5.45E-03 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESl3 )

TOT. BODY 3.11E-02 2 . 83E-02 2.72E-02 2.75E-02 1.14E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSlq )

SKIN 3.29E-02 2.99E-02 2.87E-02 2.89E-02 1.21)E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WS11 )

ORGAN 1.38E-03 2.53E-02 3.38E-02 8.48E-03 6.90E-02 (MREM) (NNE ) (NNE ) (NNE ) (NNE ) (NNEl )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10CFR 50 APP. I ADULT RECEPTOR

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 0. 82 0.75 0. 72 0. 73 10. () 1.51 BETA AIR (MRAD) 10.0 0. 02 0.01 0.01 0.01 20. ) 0.03 TOT. BODY (MREM) 2.5 1.24 1.13 1.09 1. 10 5.() 2.28 SKIN (MREM) 7.5 0.44 0.40 0.38 0.39 15. 0 0.80 ORGAN (MREM) 7.5 0.02 0.34 0.45 0.11 15. ) 0.46 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

  • DELIVER TO HEALTH PHYSICS
  • AQUATIC Effluents- 10CFR50 Listing 29-mar-2006 15:06:48 STATION: LASALLE STATION UNIT: 1 PERIOD: 01/01/05 12/31/05 NAME: ODCMLAS REPORT: ANNUAL MODE: ACTUAL

LASALLE STATION UNIT ONE ACTUAL 2005 M.kXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 INFANT RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 BODY INTERNAL 0. OOE+00 0.OOE+00 0.OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10 CFR 50 APP. I

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0. 00 0.00 0. 00 0. 00 3.10 0.00 CRIT. ORGAN(MREM) 5.0 0. 00 0. 00 0. 00 0. 00 10. ( 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE 2005 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 INFANT RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNIJAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0.OOE+00 0. OOE+00 0. QOE+00 0. OOE+00 0. 00E+00 BODY INTERNAL 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. 00E+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 40 CFR 141 TYPE ANNUAL LIMIT  % OF LIMIT TOTAL 4.0 MREM 0.000 BODY INTERNAL 4.0 MREM 0.000 ORGAN
  • THIS CALCULATION OF DOSE IS BASED ON TECHNIQUES DESCRIBED IN THE COMMONWEALTH EDISON OFFSITE DOSE CALCULATION MANUAL. THESE TECHNIQUES, DIFFER FROM THOSE DESCRIBED IN 40 CFR 141.

RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 CHILD RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0. OOE+00 0. OOE+00 0.OOE+00 0. OOE+00 BODY INTERNAL 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10 CFR 50 APP. I

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0. 00 0.00 0.00 0.00 3.(0 0.00 CRIT. ORGAN(MREM) 5.0 0. 00 0. 00 0.00 0.00 10. ( 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE 2005 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 CHILD RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. 0)E+00 BODY INTERNAL 0. OOE+00 0.OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS rS A REPORT FOR THE CALENDAR YEAR 20055 COMPLIANCE STATUS - 40 CFR 141 TYPE ANNUAL LIMIT  % OF LIMIT TOTAL 4.0 MREM 0.000 BODY INTERNAL 4.0 MREM 0. 000 ORGAN
  • THIS CALCULATION OF DOSE IS BASED ON TECHNIQUES DESCRIBED IN THE COMMONWEALTH EDISON OFFSITE DOSE CALCULATION MANUAL. THESE TECHNIQUES, DIFFER FROM THOSE DESCRIBED IN 40 CFR 141.

RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0. OOE+00 0.OOE+00 0. OOE+00 0. 00E+00 BODY INTERNAL 0. OOE+00 0. QOE+00 0.OOE+00 0. OOE+00 0. OoE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10 CFR 50 APP. I

- OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.00 0.00 0.00 0. 00 3. ) 0.00 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 10.0) 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE 2005 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0. OOE+00 0. OOE+00 0.OOE+00 0. OOE+00 BODY INTERNAL 0.OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 40 CFR 141 TYPE ANNUAL LIMIT  % OF LIMIT TOTAL 4.0 MREM 0.000 BODY INTERNAL 4.0 MREM 0.000 ORGAN
  • THIS CALCULATION OF DOSE IS BASED ON TECHNIQUES DESCRIBED IN THE COMMONWEALTH EDISON OFFSITE DOSE CALCULATION MANUAL. THESE TECHNIQUES DIFFER FROM THOSE DESCRIBED IN 40 CFR 141.

RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE ACTUAL 2005 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 ADULT RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0. OOE+00 0.OOE+00 0. OOE+00 0. QOE+00 0. OOE+00 BODY INTERNAL 0.OOE+00 0.OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 10 CFR 50 APP. I

 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0. 00 0 . 00 0.00 0.00 3. ) 0.00 CRIT. ORGAN(MREM) 5.0 0. 00 0 .00 0.00 0.00 10. () 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE 2005 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE - 01/01/05 TO 12/31/05 CALCULATED 03/29/06 ADULT RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0.OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 BODY INTERNAL 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2005 COMPLIANCE STATUS - 40 CFR 141 TYPE ANNUAL LIMIT  % OF LIMIT TOTAL 4.0 MREM 0.000 BODY INTERNAL 4.0 MREM 0.000 ORGAN
  • THIS CALCULATION OF DOSE IS BASED ON TECHNIQUES DESCRIBED IN THE COMMONWEALTH EDISON OFFSITE DOSE CALCULATION MANUAL. THESE TECHNIQUES DIFFER FROM THOSE DESCRIBED IN 40 CFR 141.

RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

j--l

  • DELIVER TO HEALTH PHYSICS
  • 29-mar-2006 15:04:43 Total Effective Dose Equivalent - 10CFR20 Listing STATION: LASALLE STATION UNIT: 1 PERIOD: 01/i1/05 12/31/05 NAME: ODCMLAS REPORT: ANNUAL MODE: ACTUAL For ADULT dose calculations, the included pathways are:

INHALATION MILK PRODUCE VEGETABLES MEAT GROUND DEPOSITION FISH WATER SKYSHINE WHOLE BODY Airborne Effluents are complete from 01/01/05 to 12/31/05 Aquatic Effluents are complete from 01/01/05 to 12/31/05 Skyshine entries are complete from 01/01/05 to 12/31/05

LASALLE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/05 TO 12/31/05 CALCULATED 03/29/06

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Eqivalent, mrem/yr 4.75E-01 10 CFR 20.1301 (a)(1) limit mrem/yr 100. 0

% of limit 0.47 Compliance Summary - 10CFR20 1st 2nd 3rd 4th  ! of Qtr Qtr Qtr Qtr Limit TEDE 1.19E-01 1.19E-01 l.19E-01 1.17E-01 0. 47 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/05 TO 12/31/05 CALCULATED 03/29/06

.2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 1.14E-01 (DDE) Skyshine 3.50E-01 Ground 2. 05E-03 Total 4.66E-01 25.0 1.86 Organ Dose Thyroid 5.99E-02 75. 0 0.08 (CDE) Gonads 6. 75E-03 25.0 0.03 Breast 6.71E-03 25.0 0.03 Lung 6. 71E-03 25.0 0.03 Marrow 6. 74E-03 25.0 0. 03 Bone 6. 74E-03 25.0 0. 03 Remainder 6. 95E-03 25.0 0.03 CEDE 8.39E-03 TEDE 4.75E-01 100. 0 0.47 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

  • DELIVER TO HEALTH PHYSICS
  • 29-mar-2006 15:06:44 Total Effective Dose Equivalent - 10CFR20 Listing STATION: LASALLE STATION UNIT: 2 PERIOD: 01/01/05 12/31/05 NAME: ODCMLAS REPORT: ANNJAL MODE: ACTUAL For ADULT dose calculations, the included pathways are:

INHALATION MILK PRODUCE VEGETABLES MEAT GROUND DEPOSITION FISH WATER SKYSHINE WHOLE BODY Airborne Effluents are complete from to Aquatic Effluents are complete from to Skyshine entries are complete from 01/01/05 to 12/31/05

LASALLE STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/05 TO 12/31/05 CALCULATED 03/29/06

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Eqivalent, mrem/yr 3.15E-01 10 CFR 20.1301 (a)(1) limit mrem/yr 100 . 0

% of limit 0.31 Compliance Summary - 10CFR20 1st 2nd 3rd 4th I of Qtr Qtr Qtr Qtr Limit TEDE 5.OOE-02 8.76E-02 8.74E-02 8.98E-02 0.:31 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

LASALLE STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/05 TO 12/31/05 CALCULATED 03/29/06

.2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 0. OOE+00 (DDE) Skyshine 3.15E-01 Ground 0. OOE+00 Total 3.15E-01 25. 0 1.26 Organ Dose Thyroid 0. OOE+00 75. 0 0.00 (CDE) Gonads 0. 00E+00 25.0 0.00 Breast 0.OOE+00 25.0 0.00 Lung 0. OOE+00 25 . 0 0.00 Marrow 0. OOE+00 25. 0 0.00 Bone 0. OOE+00 25.0 0. 00 Remainder 0. OOE+00 25.0 0.00 CEDE 0. OOE+00 TEDE 3.15E-01 100. 0 0.31 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

METEOROLOGICAL DATA

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 1 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW NNW 0 Variable 0 Total 1 3 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: 0

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 1 0 0 NNE 0 0 0 0 0 0 0 NE 1 2 0 0 3 0 0 ENE 1 1 0 0 2 0 0 E 0 0 0 0 0 0 0 ESE 0 2 0 0 2 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 3 0 3

_ 0 _ 0 S 0 0 0 0 0 0 0 SSW 0 2 0 0 2 0 0 SW 0 1 0 0 1 0 0 WSW 0 0 1 0 1 0 0 W 1 0 0 0 1 0 0 WNW 0 0 1 0 1 0 0 NW 0 0 1 0 1 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 Total 0 0 3 8 7 0 18 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 6 0

NNE 0 7 0

NE 0 8 0

ENE 0 11 0

E 0 3 0

ESE 0 5 0

SE 0 1 00 SSE 0 2 0

S 1 6 0

SSW 0 1 0

SW 0 4 0

WSW 0 7 0

W 0 5 WNW 0 0 8 5 2 0 15 NW 0 1 4 2 4 0 11 NNW 0 0 3 4 0 0 7 Variable 0 0 0 0 0 0 0 Total 0 10 33 37 18 1 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 cl asses: 0 0

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Neutral 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 21 54 6 5 0 88 NNE 0 27 51 3 0 0 81 NE 1 10 45 33 12 0 101 ENE 1 8 31 42 11 0 93 E 1 14 30 22 2 0 69 ESE 0 10 12 28 7 0 57 SE 0 7 8 16 3 0 34 SSE 1 3 4 2 0 0 10 S 1 4 4 10 10 3 32 SSW 5 9 10 9 2 1 36 SW 1 12 17 7 3 0 40 WSW 0 8 8 6 3 0 25 W 1 24 14 14 11 2 66 WNW 1 20 25 26 10 8 90 NW 1 12 44 46 16 0 119 NNW 0 8 109 62 19 0 198 Variable 0 0 0 0 0 0 0 Total 16 197 466 332 114 14 1139 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 39 5 6 3 0 55 NNE 2 19 3 0 0 0 24 NE 1 2 18 1 0 0 22 ENE 0 3 12 13 0 0 28 E 2 12 41 8 0 0 63 ESE 3 6 21 8 0 0 38 SE 2 4 7 1 0 0 14 SSE 2 7 11 3 0 0 23 S 2 7 14 1 3 0 27 SSW 0 7 13 8 8 0 36 SW 1 3 15 11 6 4 40 WSW 1 2 8 10 6 0 27 W 0 3 8 7 3 2 23 WNW 1 9 5 7 8 3 33 NW 2 9 25 5 1 0 42 NNW 1 17 10 2 0 0 30 Variable 0 0 0 0 0 0 0 Total 22 149 216 91 38 9 525 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 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 NNE 1 2 0 0 0 0 3 NE 2 0 0 0 0 0 2 ENE 3 1 0 0 0 0 4 E 1 7 1 0 0 0 9 ESE 2 12 4 0 0 0 18 SE 0 6 2 2 0 0 10 SSE 3 1 9 9 0 0 22 S 1 4 9 1 0 0 15 SSW 2 1 6 8 3 0 20 SW 0 6 9 5 0 0 20 WSW 0 5 11 7 0 0 23 W 1 7 3 0 0 0 11 WNW 2 6 1 0 0 0 9 NW 1 3 5 0 0 0 9 NNW 0 2 2 0 0 0 4 Variable 10 0 0 0 0 0 0 Total 20 64 62 32 3 0 181 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 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

NNE 0 0 0 0 0 0

NE 0 0 0 0 0 0

ENE 0 0 0 0 0 0

E 1 3 0 0 4 0

ESE 0 5 1 0 6 0

SE 1 4 2 0 7 0

SSE 0 6 9 0 15 S 0 4 17 2 0 23 SSW 0 4 15 0 0 19 SW 0 2 17 5 0 24 WSW 0 9 3 2 0 14 W 1 9 6 0 0 16 WNW 0 4 0 0 0 4 NW 0 0 0 0 0 0 NNW 0 0 2 0 0 2 Variable 0 0 0 0 0 0 Total 3 50 72 9 0 0 134 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0

NNE 0 0 0

NE 0 0 0

ENE 0 0 0

E 0 0 00 ESE 0 0 0

SE 0 0 0

SSE 0 0 0

S 0 0 0

SSW 0 0 SW 0 0 0 WSW 0 0 0 W 0 0 0 WNW 0 0 0 NW 0 0 0 NNW 0 0 0 Variable 0 0 0 Total 0 0 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: 2

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 0 NNE 0 0 NE 0 0 ENE 0 0 E 0 0 ESE 0 0 SE 0 0 SSE 0 0 S 2 2 SSW 0 0 SW 0 0 WSW 0 0 W 0 0 WNW 0 0 NW 0 0 NNW 0 0 Variable 0 0 Total 2 2 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 NNE 0 0 NE 0 1 ENE 0 3 E 0 0 ESE 0 2 SE 0 0 SSE 0 0 S 2 2 SSW 0 1 SW 0 0 WSW 0 0 W 0 0 WNW 0 0 NW 0 1 NNW 0 0 Variable 0 0 Total 0 0 1 4 3 3 11 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 12 26 44 11 8 101 NNE 1 9 22 41 3 1 77 NE 0 5 13 49 28 16 111 ENE 1 4 26 32 32 20 115 E 0 4 11 13 14 4 46 ESE 0 9 11 8 18 15 61 SE 1 2 4 6 7 4 24 SSE 0 5 0 4 5 4 18 S 0 6 7 3 6 17 39 SSW 0 2 7 4 5 5 23 SW 1 7 13 10 3 6 40 WSW 1 6 2 11 5 10 35 W 0 6 21 14 12 10 63 WNW 0 5 26 18 18 24 91 NW 1 9 47 83 50 45 235 NNW 3 5 32 50 21 9 120 Variable 0 0 0 0 0 0 0 Total 9 96 268 390 238 198 1199 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta bility class: 112 Hours of missing stability measurements in all stability classes: 2

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 7 9 4 4 25 NNE 7 17 11 0 0 35 NE 1 9 17 1 0 29 ENE 19 13 8 6 0 46 E 6 13 17 7 3 46 ESE 6 5 5 23 4 43 SE 6 5 5 3 1 20 SSE 1 4 3 8 10 26 S 5 4 2 15 6 32 SSW 1 3 8 15 24 52 SW 2 2 4 12 20 41 WSW 2 2 1 8 15 28 W 3 3 8 6 15 38 WNW 3 8 4 7 29 51 NW 0 5 22 6 6 39 NNW 0 10 9 7 3 30 Variable 0 0 0 0 0 0 Total 7 63 110 133 128 140 581 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 19 Hours of missing stability measurements in all stability classes: 2

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 1 1 2 0 0 4 NNE 0 0 1 2 0 .0 3 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 1 0 1 E 1 1 1 1 0 0 4 ESE 1 3 1 0 0 1 6 SE 0 2 5 1 0 3 11 SSE 0 4 0 0 6 11 S 1 3 3 6 15 31 SSW 0 1 2 1 4 10 SW 0 1 2 2 8 15 WSW 0 0 5 4 15 24 W 0 4 2 3 3 13 WNW 0 6 1 2 2 12 NW 0 5 4 2 0 13 NNW 0 0 1 1 0 2 Variable 0 0 0 0 0 0 Total 3 19 33 26 22 57 160 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

LaSalle Nuclear Station Period of Record: January - March 2005 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 1 NNE 0 1 0 0 1 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 0 0 0 0 0 ESE 0 0 0 0 0 SE 1 1 2 2 6 SSE 1 1 1 1 4 S 0 1 3 7 11 SSW 0 6 3 7 16 SW 2 2 5 16 25 WSW 0 0 0 9 9 W 0 0 0 0 0 WNW 0 0 0 1 1 NW 0 0 0 0 0 NNW 0 0 0 0 0 Variable 0 0 0 0 0 Total 4 12 15 43 74 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 0 2 0

NNE 0 1 4 0 0 5 0

NE 0 2 0 1 0 3 0

ENE 0 0 1 0 0 1 0

E 0 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 2 9 1 0 12 SSW 0 0 2 8 3 1 14 SW 0 0 3 5 2 0 10 WSW 0 0 3 12 3 0 18 W 0 0 1 13 2 0 16 WNW 0 0 0 7 0 0 7 NW 0 0 1 1 1 0 3 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 0 17 60 13 1 91 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabil ity class: 0 Hours of missing stability measurements in all st,ability classes: 0

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 2 0 0 4 NNE 0 1 4 3 0 0 8 NE 0 1 8 1 0 0 10 ENE 0 0 4 3 0 0 7 E 0 0 1 1 0 0 2 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 .1 2 6 0 0 9 S 0 1 0 6 0 0 7 SSW 0 0 8 2 1 0 11 SW 0 0 5 4 2 0 11 WSW 0 0 1 8 1 0 10 W 0 0 2 8 1 0 11 WNW 0 0 3 9 5 1 18 NW 0 0 6 2 2 0 10 NNW 0 0 3 2 1 0 6 Variable 0 0 0 0 0 0 0 Total 0 4 49 57 13 1 124 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Slightly Unstable - 20 OFt-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 4 0 6 NNE 3 2 0 7 NE 9 2 0 16 ENE 10 1 0 13 E 6 4 1 15 ESE 1 1 0 3 SE 3 1 0 6 SSE 3 5 o 9 S 9 5 0 16 SSW 9 3 0 15 SW 8 5 0 18 WSW 2 5 0 15 W 5 6 0 14 WNW 8 17 3 35 NW 4 3 0 10 NNW 0 2 0 8 Variable 0 0 0 0 Total 0 24 81 66 31 4 206 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 2 12 15 4 0 33 NNE 7 21 14 0 0 42 NE 12 21 29 9 0 72 ENE 8 30 13 2 0 55 E 12 28 21 10 0 71 ESE 12 19 6 0 0 38 SE 8 15 9 1 1 34 SSE 7 10 13 2 0 33 S 8 12 10 3 0 33 SSW 6 21 12 3 0 43 SW 10 13 10 3 0 36 WSW 16 15 9 4 0 46 W 7 16 15 14 0 54 WNW 8 12 24 21 5 70 NW 4 11 15 1 1 32 NNW 2 3 15 18 0 39 Variable 0 0 0 0 0 0 Total 11 129 259 230 95 7 731 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 10 1 0 0 0 14 NNE 0 24 8 2 0 0 34 NE 1 9 19 5 0 0 34 ENE 1 4 17 17 1 0 40 E 2 16 29 9 3 0 59 ESE 1 11 9 7 8 0 36 SE 2 7 7 1 1 0 18 SSE 0 6 7 6 0 0 19 S 0 7 15 9 1 0 32 SSW 1 4 15 10 0 0 30 SW 1 3 10 12 0 0 26 WSW 1 8 20 2 2 0 33 W 1 7 16 13 3 0 40 WNW 2 10 10 15 4 0 41 NW 0 6 4 0 0 0 10 NNW 2 1 3 2 1 0 9 Variable 0 0 0 0 0 0 0 Total 18 133 190 110 24 0 475 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 2__ 5---- 0_ 0----

N 2 5 0 0 7 NNE 2 11 0 0 13 NE 0 0 0 0 0 ENE 1 2 1 1 5 E 1 14 27 0 42 ESE 0 6 6 3 15 SE 1 10 11 1 23 SSE 1 11 6 3 21 S 2 7 9 2 20 SSW 2 14 15 2 33 SW 0 10 11 1 22 WSW 3 7 15 0 25 W 2 9 5 0 16 WNW 1 15 7 0 23 NW 2 3 3 0 8 NNW 2 5 0 0 7 Variable 0 0 0 0 0 Total 22 129 116 13 0 0 280 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 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 NNE 0 0 0 0 0 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 0 4 6 0 10 ESE 0 17 15 0 32 SE 0 20 5 0 25 SSE 0 25 14 0 40 S 1 16 11 0 29 SSW 2 21 16 0 41 SW 0 8 20 0 28 WSW 1 13 21 0 35 W 0 12 5 0 17 WNW 0 8 1 0 9 NW 0 2 0 0 2 NNW 0 0 0 0 0 Variable 0 0 0 0 0 Total 4 146 114 0 268 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

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabil ity class: 0 Hours of missing stability measurements in all st.ability classes: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 NNE 0 0 0 1 0 0 1 NE 0 0 0 1 0 0 1 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 4 1 6 SSW 0 0 0 1 0 0 1 SW 0 0 1 0 2 0 3 WSW 0 0 0 1 6 0 7 W 0 0 0 0 2 0 2 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 1 5 14 1 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: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 2 0 0 3 NNE 0 0 1 0 6 0 7 NE 2 10 ENE 0 4 E 0 1 ESE 0 0 SE 0 0 SSE 0 1 S 1 8 SSW 3 14 SW 3 8 WSW 1 11 W 0 0 6 WNW 0 0 2 NW 0 0 0 NNW 0 0 2 Variable 0 0 0 Total 0 0 14 27 26 10 77 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: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 4 10 22 8 46 NNE 0 5 14 14 22 5 60 NE 1 6 24 27 18 19 95 ENE 2 8 30 31 13 3 87 E 0 5 23 26 17 12 83 ESE 2 9 16 11 4 5 47 SE 0 6 15 16 5 3 45 SSE 0 2 11 18 14 1 46 S 0 5 16 21 15 3 60 SSW 0 8 24 26 12 12 82 SW 0 2 16 21 12 5 56 WSW 1 16 12 .15 16 7 67 W 1 5 13 21 30 14 84 WNW 0 4 14 25 41 22 106 NW 1 3 13 14 22 14 67 NNW 0 1 1 2 11 22 37 Variable 0 0 0 0 0 0 0 Total 8 87 246 298 274 155 1068 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: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 3 4 3 0 0 10 NNE 0 6 3 11 4 1 25 NE 0 5 8 25 7 1 46 ENE 1 3 7 22 10 0 43 E 0 4 7 12 11 9 43 ESE 2 1 9 4 7 14 37 SE 0 2 4 4 7 3 20 SSE 0 1 6 12 3 8 30 S 1 1 3 8 12 13 38 SSW 3 3 1 7 9 22 45 SW 0 5 6 12 10 10 43 WSW 0 1 5 2 10 9 27 W 0 4 5 5 18 24 56 WNW 1 0 2 12 21 24 60 NW 0 1 5 12 3 1 22 NNW 0 0 6 3 1 1 11 Variable 0 0 0 0 0 0 0 Total 8 40 81 154 133 140 556 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: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 1 2 1 0 0 4 NE 0 3 1 3 3 0 10 ENE 0 0 2 7 1 0 10 E 0 0 2 4 6 0 12 ESE 0 1 1 10 8 2 22 SE 0 0 5 3 5 6 19 SSE 1 2 3 5 8 7 26 S 0 2 1 11 7 12 33 SSW 0 0 9 10 10 22 51 SW 0 0 4 14 13 13 44 WSW 0 0 2 4 11 2 19 W 0 2 5 8 6 1 22 WNW 0 0 3 11 5 1 20 NW 0 3 3 6 10 3 25 NNW 0 0 0 2 1 0 3 Variable 0 0 0 0 0 0 0 Total 1 15 44 100 94 69 323 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: 4

LaSalle Nuclear Station Period of Record: April - June 2005 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 1 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 0

E 0 0 0 0 0 0 0

ESE 1 0 0 1 2 4 0

SE 1 0 0 0 11 12 SSE 0 2 6 2 5 10 25 S 0 0 5 3 5 11 24 SSW 1 2 1 6 2 7 19 SW 2 0 1 5 11 4 23 WSW 0 1 1 2 4 0 8 W 0 0 0 2 5 1 8 WNW 0 0 0 1 1 4 6 NW 0 0 0 1 0 0 1 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 3 7 14 23 34 50 131 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: 4

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 0 0 1 NNE 0 0 0 0 0 0 0 NE 0 0 3 0 0 0 3 ENE 0 0 0 0 0 0 0 E 0 0 0 1 0 0 1 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 3 3 0 0 6 SW 0 0 7 2 0 0 9 WSW 0 1 0 3 0 0 4 W 0 0 3 6 0 0 9 WNW 0 0 3 8 0 0 11 NW 0 0 1 2 0 0 3 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 1 20 26 0 0 47 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 0 3 2 5 NNE 0 4 3 0 7 NE 0 0 1 1 2 ENE 0 0 3 0 3 E 0 0 1 0 1 ESE 0 0 2 0 2 SE 0 0 0 1 1 SSE 0 0 2 0 2 S 0 1 3 0 4 SSW 0 0 14 1 15 SW 0 1 9 7 19 WSW 0 0 5 2 7 W 0 1 4 2 7 WNW 0 2 10 3 15 NW 0 1 5 0 6 NNW 0 0 0 3 3 Variable 0 0 0 0 0 Total 0 10 65 22 2 0 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: 0o

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 9 6 0 0 0 15 0 0 NNE 0 9 2 0 11 0 0 NE 0 2 4 1 7 0 0 ENE 0 2 9 0 11 0 0 E 0 4 5 1 10 0 0 ESE 0 3 6 1 10 0 0 SE 0 6 4 0 10 0 0 SSE 0 3 5 0 8 0 0 S 0 0 5 0 5 00 00 SSW 0 2 12 5 19 0 0 SW 0- 5 6 3 14 0 0 WSW 0 8 7 6 21 0 0 W 0 11 4 1 16 0 0 WNW 0 7 6 3 16 0 0 NW 0 1 11 0 12 0 0 NNW 0 2 7 3 12 0 0 Variable 0 0 0 0 0 Total 0 74 99 24 0 0 197 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

LaSalle Nuclear Station Period of Record: July September 2005 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 48 24 2 0 78 NNE 2 31 32 0 0 65 NE 1 21 28 11 0 61 ENE 1 11 16 11 0 39 E 1 21 16 2 0 40 ESE 2 14 17 1 0 34 SE 3 24 10 0 0 37 SSE 6 17 14 1 0 38 S 5 11 17 4 0 37 SSW 2 10 16 5 0 33 SW 3 6 9 12 0 30 WSW 2 11 7 4 0 24 W 1 7 7 1 0 16 WNW 4 15 9 4 0 32 NW 1 10 23 2 0 37 NNW 0 17 29 7 0 56 Variable 0 0 0 0 0 0 Total 38 274 274 67 4 0 657 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sitability class: 0 Hours of missing stability measurements in a:Ll stability classes: 0o

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 45 6 0 0 53 NNE 51 6 1 0 59 NE 8 18 1 0 27 ENE 8 29 2 0 39 E 20 19 0 0 39 ESE 12 7 0 0 22 SE 10 8 1 0 20 SSE 12 11 0 0 25 S 8 18 2 0 31 SSW 9 27 1 0 39 SW 8 21 4 0 33 WSW 8 9 2 0 21 W 11 8 0 0 20 WNW 10 7 0 0 20 NW 7 8 0 0 16 NNW 14 6 0 0 20 Variable 0 0 0 0 0 Total 21 241 208 14 0 484 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 24 0 0 26 NNE 0 is 0 0 15 NE 1 2 0 0 3 ENE 2 1 2 0 5 E 0 38 17 0 55 ESE 3 26 2 0 31 SE 0 19 1 0 20 SSE 4 16 8 0 28 S 4 15 17 0 36 SSW 0 12 15 0 28 SW 0 6 4 0 11 WSW 1 9 2 0 13 W 0 12 6 0 18 WNW 3 14 2 0 19 NW 1 6 0 0 7 NNW 2 7 0 0 9 Variable 0 0 0 0 0 Total 23 222 76 0 324 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 7 0 0 7 NNE 0 0 0 0 0 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 0 11 3 0 14 ESE 0 35 1 0 36 SE 1 33 2 0 36 SSE 3 51 7 0 61 S 2 57 11 0 70 SSW 0 38 10 0 48 SW 1 22 20 0 43 WSW 2 9 11 0 22 W 1 13 4 0 18 WNW 1 16 0 0 17 NW 0 4 0 0 4 NNW 0 4 0 0 4 Variable 0 0 0 0 0 Total 11 300 69 0 0 0 380 HourE of calm in this stability class: 0 HourE of missing wind measurements in this stability class: 0 HourE of missing stability measurements in all stability classes: 0

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 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 0 0 0 0 0 NNW 0 0 0 .0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 NNE 0 0 NE 0 0 ENE 0 0 E 0 0 ESE 0 0 SE 0 0 SSE 0 0 S 0 0 SSW 0 1 SW 0 3 WSW 0 0 W 0 2 WNW 0 1 NW 0 0 NNW 0 0 Variable 0 0 Total 0 7 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 1 10 27 8 2 48 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sitability class: 0 Hours of missing stability measurements in a:11 stability classes: 0

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 31 38 15 4 1 90 NNE 1 20 21 30 5 1 78 NE 2 13 11 28 21 3 78 ENE 2 20 21 17 11 0 71 E 0 13 17 4 5 0 39 ESE 0 12 16 13 0 0 41 SE 0 16 23 5 1 0 45 SSE 2 16 15 12 1 0 46 S 4 9 16 20 6 0 55 SSW 2 5 17 29 15 3 71 SW 0 10 15 12 13 2 52 WSW 0 16 18 4 12 0 50 W 2 14 11 9 2 0 38 WNW 0 13 20 16 5 1 55 NW 2 7 33 32 4 6 84 NNW 0 16 23 17 1 0 57 Variable 0 0 0 0 0 0 0 Total 18 231 315 263 106 17 950 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: 0

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 4 13 20 4 0 42 NNE 4 17 31 6 0 59 NE 2 14 28 13 0 57 ENE 1 24 30 5 0 60 E 4 21 25 8 0 58 ESE 4 11 9 3 0 27 SE 10 9 9 4 0 32 SSE 4 2 11 4 1 23 S 6 7 6 14 9 45 SSW 4 7 7 9 28 55 SW 0 3 6 12 16 38 WSW 0 8 10 8 2 28 W 2 11 9 1 0 23 WNW 2 7 8 4 0 21 NW 1 8 7 6 0 22 NNW 5 8 10 4 0 28 Variable 0 0 0 0 0 0 Total 8 53 170 226 105 56 618 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

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 8 1 1 0 10 NNE 1 1 4 2 0 0 8 NE 0 4 5 7 0 0 16 ENE 0 3 3 1 0 0 7 E 0 1 1 6 11 0 19 ESE 1 6 4 19 18 5 53 SE 0 1 4 10 7 2 24 SSE 0 4 8 18 2 3 35 S 2 6 9 20 12 17 66 SSW 2 2 9 6 9 19 47 SW 0 3 3 4 1 3 14 WSW 0 0 2 5 6 1 14 W 0 0 2 12 2 0 16 WNW 0 3 3 8 4 0 18 NW 1 3 1 8 6 0 19 NNW 0 2 0 1 3 0 6 Variable 0 0 0 0 0 0 0 Total 7 39 66 128 82 50 372 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: 0o

LaSalle Nuclear Station Period of Record: July - September 2005 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 *> 24 Total N 0 1 5 I 0 7 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 3 3 0 6 0

SE 0 0 8 6 0 14 SSE 0 0 0 19 3 3 25 S 0 0 1 12 20 10 43 SSW 0 0 5 11 17 6 39 SW 0 0 4 16 12 5 37 WSW 0 2 2 2 9 0 15 W 0 1 1 3 1 5 11 WNW 0 0 0 2 0 2 4 NW 0 0 0 6 1 0 7 NNW 0 0 0 0 2 0 2 Variable 0 0 0 0 0 0 0 Total 0 3 14 87 75 31 210 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: 0o

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 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 1 0 0 1 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 0 0 0 0 SSW 0 0 0 1 0 0 1 SW 0 0 0 1 0 0 1 WSW 0 0 0 0 0 0 0 W 0 0 0 2 0 0 2 WNW 0 0 0 2 0 0 2 NW 0 0 0 0 0 0 0 NNW 0 0 0 1 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 0 0 5 0 0 5 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 4 NNE 0 2 NE 0 4 ENE 0 1 E 0 0 ESE 0 1 SE 0 0 SSE 0 2 S 0 2 SSW 0 6 SW 0 11 WSW 0 4 W 0 2 WNW 0 2 NW 0 1 NNW 0 1 Variable 0 0 Total 0 4 13 21 5 0 43 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 6 NNE 0 2 NE 3 5 ENE 2 8 E 0 0 ESE 0 1 SE 0 0 SSE 0 2 S 1 2 SSW 7 11 SW 7 14 WSW 2 8 W 5 10 WNW 2 5 NW 3 4 NNW 16 25 Variable 0 0 Total 0 5 40 49 9 0 103 Hours of calm in this stabilit.y class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 1 16 25 26 1 0 69 NNE 0 12 16 1 0 0 29 NE 1 4 20 1 0 0 26 ENE 0 2 22 22 6 0 52 E 0 5 17 33 1 0 56 ESE 0 6 8 4 0 0 18 SE 4 4 9 10 8 0 35 SSE 0 1 3 3 1 0 8 S 0 1 13 9 0 0 23 SSW 3 2 15 21 9 0 50 SW 1 6 24 14 14 0 59 WSW 1 4 25 12 1 3 46 W 0 16 35 30 12 13 106 WNW 3 16 31 30 7 8 95 NW 0 7 40 20 10 1 78 NNW 1 10 30 29 7 6 83 Variable 0 0 0 0 0 0 0 Total 15 112 333 265 77 31 833 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 11 10 7 0 0 29 NNE 2 22 4 0 0 0 28 NE 2 9 12 0 0 0 23 ENE 0 1 7 3 0 0 11 E 1 13 15 8 0 0 37 ESE 1 7 2 4 0 0 14 SE 2 8 5 6 8 0 29 SSE 1 2 12 12 0 0 27 S 2 5 17 10 1 3 38 SSW 1 4 23 18 12 2 60 SW 2 7 15 26 15 2 67 WSW 1 4 14 .8 3 0 30 W 0 12 21 13 8 4 58 WNW 0 12 30 10 18 16 86 NW 1 11 28 9 1 1 51 NNW 0 7 10 6 0 0 23 Variable 0 0 0 0 0 0 0 Total 17 135 225 140 66 28 611 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Moderately Stable - 200 Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 2 12 0 0 0 14 NNE 1 8 0 0 0 9 NE 0 1 0 0 0 1 ENE 0 0 0 0 0 0 E 3 3 1 0 0 7 ESE 0 6 5 0 0 11 SE 1 7 8 0 0 16 SSE 0 1 5 0 0 6 S 0 12 6 9 0 27 SSW 0 3 23 15 0 42 SW 2 4 13 15 0 34 WSW 1 6 14 2 0 23 W 1 17 24 0 0 42 WNW 0 20 13 0 0 33 NW 0 15 10 0 0 25 NNW 0 7 2 0 0 9 Variable 0 0 0 0 0 0 Total 11 122 124 41 0 299 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 2 NNE 0 1 0 0 1 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 1 3 0 0 4 ESE 0 1 0 0 1 SE 0 7 3 0 10 SSE 1 17 4 0 22 S 0 27 13 0 40 SSW 2 9 51 0 64 SW 0 12 27 0 39 WSW 0 3 27 0 31 W 0 10 14 0 24 WNW 0 7 3 0 10 NW 0 8 5 0 13 NNW 0 1 0 0 1 Variable 0 0 0 0 0 Total 4 108 147 0 262 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

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 0 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 0 SE 0 0 0 SSE 0 0 0 S 0 0 0 SSW 0 0 0 SW 0 0 0 WSW 0 0 0 W 0 0 0 WNW 0 0 0 NW 0 0 0 NNW 0 0 0 Variable 0 0 0 Total 0 0 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: 1

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 NNE 0 0 NE 0 0 ENE 0 0 E 0 0 ESE 0 0 SE 0 0 SSE 0 0 S 0 0 SSW 0 0 SW 0 0 WSW 0 0 W 0 0 WNW 0 0 NW 0 0 NNW 0 0 Variable 0 0 Total 0 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: 1

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1 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: I

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 11 8 19 31 7 76 NNE 1 3 3 18 3 0 28 NE 1 2 16 29 8 0 56 ENE 0 1 8 26 21 10 66 E 1 1 6 13 22 0 43 ESE 0 5 4 9 0 0 18 SE 1 4 2 5 7 20 39 SSE 0 0 1 3 2 8 14 S 2 1 7 10 14 3 37 SSW 1 3 7 27 27 18 83 SW 0 2 9 24 10 34 79 WSW 3 3 19 14 6 25 70 W 0 10 24 26 28 34 122 WNW 2 8 17 34 19 17 97 NW 0 5 20 40 21 18 104 NNW 1 6 10 23 43 16 99 Variable 0 0 0 0 0 0 0 Total 13 65 161 320 262 210 1031 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: 1

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 .> 24 Total N 2 6 1 8 5 1 23 NNE 0 5 8 5 I 0 19 NE 1 4 21 6 7 0 39 ENE 0 4 9 10 1 0 24 E 0 4 2 13 4 0 23 ESE 1 6 5 4 1 0 17 SE 0 2 3 8 4 10 27 SSE 2 0 3 5 10 14 34 S 0 2 0 1 9 21 33 SSW 0 2 4 7 12 56 81 SW 0 3 3 8 18 38 70 WSW 0 3 5 12 9 9 38 W 0 3 9 10 17 33 72 WNW 1 4 14 34 30 43 126 NW 0 3 8 14 28 8 61 NNW 0 4 5 1 6 7 23 Variable 0 0 0 0 0 0 0 Total 7 55 100 146 162 240 710 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: es Hours of missing stability measurements in all stability classes: 1

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 0 3 0 7 NNE 0 2 2 7 0 0 11 NE 1 1 1 4 2 0 9 ENE 1 2 3 0 0 0 6 E 0 4 1 2 0 0 7 ESE 0 1 0 1 1 0 3 SE 0 0 1 3 3 0 7 SSE 0 1 1 1 4 1 8 S 0 3 3 3 11 9 29 SSW 0 1 1 3 18 55 78 SW 0 2 0 8 6 17 33 WSW 0 0 4 .13 3 3 23 W 0 1 4 17 7 10 39 WNW 0 2 3 10 3 1 19 NW 1 0 3 9 5 6 24 NNW 0 0 3 6 3 4 16 Variable 0 0 0 0 0 0 0 Total 3 21 33 87 69 106 319 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: I

LaSalle Nuclear Station Period of Record: October - December2005 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 NNE 0 0 1 1 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 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 1 1 1 3 S 0 0 3 1 1 11 16 SSW 0 0 0 4 7 20 31 SW 0 0 4 1 12 9 26 WSW 0 0 2 6 8 3 19 W 0 1 5 3 1 10 20 WNW 0 0 1 2 6 7 16 NW 0 0 1 0 1 1 3 NNW 0 0 0 1 2 0 3 Variable 0 0 0 0 0 0 0 Total 0 1 17 20 39 62 139 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missinq stability measurements in all stability classes:

1

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2005)

Appendix A LaSalle ODCM

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