ML061450222

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Memo from J. Kalb to J. Strmec Estimates of Off-site Doses from Difficutt-to-measure Nuclides
ML061450222
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 10/19/2004
From: Kalb J
Exelon Nuclear
To: Strmec J
Exelon Nuclear, Office of Nuclear Reactor Regulation
References
FOIA/PA-2006-0130
Download: ML061450222 (28)


Text

memorandum

~eu~

Nuclear Date:

October 19, 2004 To:

J. Strmec, Chemistry Manager From:

J. Kalb, Environmental Chemist

Subject:

Estimates of off-site doses from difficult-to-measure nuclides

Reference:

Dresden Off-site Dose Calculation Manual (ODCM)

Enclosure:

(1) Unit 3 2004 dose projection including H-3, Fe-59, Sr-89, Sr-90 (2) Unit 3 December 2004 dose projection including H-3, Fe-59, Sr-89, Sr-90 On the recommendation of Exelon Corporate Environmental, the impact to dose received by the public from difficult to measure (DTM) nuclides as a result of the underground pipe leak was evaluated. Tritium (H-3),

iron-55 (Fe-55), strontium-89 (Sr-89), and strontium-90 (Sr-90) are the DTM nuclides of concern. These nuclides are regarded as difficult to measure because they decay by weak beta emission and cannot be detected using routine gamma spectroscopy techniques. Tritium can be analyzed on site using liquid scintillation techniques; iron and strontium analyses require chemical separations that are beyond the reasonable capabilities of the on-site laboratory. In order to estimate the activity of the iron and strontium, scaling factors were derived as follows:

  • Fe Because liquid radwaste discharges are processed in the same manner as water processed for return to the Condensate Storage Tank (CST), Fe-55 concentration can be estimated using the scaling factor determined per CY-DR-120-600, Liquid Radwaste Scaling Factors. This method uses the average log value of actual river discharge Fe-55 analyses to determine the scaling factor in relation to Co-60. The current value, calculated on 6-17-04, is 2.68; this means for every curie of Co-60 activity present, an estimated 2.68 curies of Fe-55 is present.

Sr No Sr-90 activity was detected in liquid radwaste discharges for the past two years, so the IOCFR61 Sr-90 scaling factor (the highest IOCFR61 scaling factor available) per RP-DR-605, Waste Stream Sampling and Analysis, was used. This procedure also uses average log calculation methodology. The current value, calculated on 6-29-04, is 2.33E-03; this means for every curie of Co-60 activity present, an estimated 0.00233 curies of Sr-90 is present.

Sr No Sr-89 activity was detected in liquid radwaste discharges for the past two years, and Sr-89 scaling factors are not required by 10CFR61. Sr-89 and Sr-90 are fission products that exist in the reactor coolant in a ratio of 1.OE-04 4iCi/g Sr-89 to 7.OE-06 piCi/g Sr-90 per ANSIIANS-18.1-1999, Radioactive Source Term for Normal Operation of Light Water Reactors. Because both are isotopes of the same element, both isotopes will react chemically in the same manner, having the same removal processes and maintaining the same approximate ratio if decay is neglected. Neglecting the effects of decay is conservative for the determination of Sr-89, which has a significantly shorter half-life (50.52 days) than Sr-90 (28.78 years). For every curie of Sr-90 present, an estimated 14.29 curies of Sr-89 is present.

H The tritium concentration used for these calculations is from the 9-3-04 analysis of the CST.

Tritium analysis of the CST is not performed on a routine basis. The result was 8.624E+06 pCi/L. It s

ld be noted that this tritium concentration is for the CST, not what is released from the site CST water is diluted b roundwater and rainwater. resnting in a lower concentration.

  • Co The Co-60 concentration was calculated using the average concentration of routine analyses performed since 1 1-12-03. Less than detectable values were not used in the calculation. The average value was 312.8 pCi/ii j

..."" I

- /,&2,

lh-.

, The following estimates and projections assumed A 2.0 entirety of 2004 and that the filtering effects of the ah c6nservative).

minute (gpm) leak of CST water during the Vrw isotopes is negligible (which is Total volume released:

(2.0 gpm) x (1440 miilday) x (366 dbys in 2004) x (3.785 liters / gallon) = 3.99E+6 L Fe-55 concentration (prior to dilution by other groundwater sources):

(312.8 pCiIL Co-60) x (2.68 Ci Fe-55 / Ci Co-60) = 838.3 pCi/L Fe-55 Fe-55 activity:

(838.3 pCi/L Fe-55) x (3.99E+06 L) x (1 Ci IE12 pCi) = 3.34E-03 Ci Fe-55 O X

o"V.

Sr-90 concentration (prior to dilution by other groundwater sources):

(312.8 pCi/L Co-60) x (2.33E-03 Ci Sr-90 / Ci Co-60) = 0.7288 pCi/L Sr-90 Sr-90 activity:

(0.7288 pCi/L Sr-90) x (3.99E+06 L) x (1 Ci / lE12 pCi) = 2.91E-06 Ci Sr-90 v" Sr-89 concentration (prior to dilution by other groundwater sources):

(312.8 pCi/L Co-60) x (2.33E-03 Ci Sr-90 / Ci Co-60) x (14.29 Ci Sr-89 / Ci Sr-90) = 10.41 pCi/L Sr-89 Sr-89 activity:y (10.41 pCi/L Sr-89) x (3.99E+06 L) x (1 Ci / IE12 pCi) = 4.15E-05 Ci Sr-91 fs 4.Q Tritium concentration (prior to dilution by other groundwater sources):

r(-(k Analytical result from 9-3-04 of the CST: 8.624E+* pCi/L H-3 S

f -

X Tritium activity:

s 6

s =

(8.624E+06 pCi/L H-3) x (3.99E+06 L) x (1 Ci / 1E12 pCi) = 34.4 Ci H-3

[

q

=

[

,.L (,

5 4 b All of the above concentrations for Fe-55, Sr-89, and Sr-90 before dilution of natural sources, which are calculated in a very conservative manner (i.e., higher than anticipated results), are below the EPA derived limits for drinking water (which are 2000, 20, and 8 pCi/L, respectively) as well as 10CFR20, Appendix B, Table 2, Column 2 limits (which are less restrictive). The highest tritium concentration seen at the storm drains prior to release to the plant's canals was 99,000 pCitL in DSP-132 on 9-3-04, which is also below 10CFR20 limits. The canals are not a potential drinking water supply.

To determine the dose to the public as a result of a liquid release of tritium to the environment, estimates were performed using the current ODCM methodology using the activities calculated above, again assuming a constant 2.0 gpm leak rate and no removal due to decay or the filtering effects of the soil. The dose was attributed to a continuous release from Unit 3 in December of 2004, which does not affect the calculated annual dose or critical organ. Resultant doses (in mrem) and most the conservative receptor is:

Whole body 2.17E-4 Child Organ 2.18E-4 Child Critical organ Liver The following are the limits on dose from liquid effluents from Chapter 12.3.A.2 of the ODCM:

1.

Less than or equal to 10 mrem to any organ during any calendar quarter.

2.

Less than or equal to 20 mrem to any organ during any calendar year.

3.

Less than or equal to 3 mrem to whole body during any calendar quarter..

4.

Less than or equal to 6 mrem to whole body during any calendar year.

The calculated doses are well below all regulatory limits. Assuming a constant release rate, the annual whole body dose limit of less than or equal to 6 mrem to the whole body and 20 mrem to any organ per year are the most restrictive ODCM limits in this scenario. The dose to the public from the release of a 2.0 gpm CST leak DTM nuclides is several orders of magnitude below these limits.

2 of 2

mmommommom

  • DELIVER TO HEALTH PHYSICS
  • AQUATIC Effluents-10CFR5O Listing 19-oct-2004 17:50:27 STATION:: DRESDEN STATION UNIT:

3 PERIOD:

01/01/04 12/31/04 NAME:

MOORE REPORT:

ANNUAL MODE:

ACTUAL

I DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM PERIOD OF RELEASE -

01/01/04 TO 12/31/04 INFANT RECEPTOR AQUATIC EFFLUENTS CALCULATED 10/19/04 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 0.OOE+00 2.10E-04 2.10E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

10 CFR 50 APP. I

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

QTRLY 1ST QTR 2ND QTR 3RD QTR OBJ JAN-MAR APR-JUN JUL-SEP 4TH QTR YRLY

% OF OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 LIVER 3.0 0.01 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ODCM ODCM ANNEX REVISION 1.1 SOFTWARE VERSION 1.1 DATABASE VERSION 1.1 JULY 1994 January 1995 January 1995

momowi f

DRESDEN STATION UNIT THREE 2004 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CALCULATED 10/19/04 INFANT RECEPTOR DOSE TYPE TOTAL BODY INTERNAL ORGAN 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL 0.OOE+00 O.OOE+00 0.OOE+00 2.10E-04 2.10E-04 0.OOE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.005 0.005 LIVER THIS CALCULATION OF DOSE IS BASED ON TECHNIQUES DESCRIBED IN THE COMMONWEALTH EDISONOFFSITE DOSE CALCULATION MANUAL.

THESE TECHNIQUES DIFFER FROM THOSE DESCRIBED IN 40 CFR 141.

RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

mwlmmmm

t DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

01/01/04 TO 12'<31/04 CALCULATED 10/19/04 CHILD RECEPTOR DOSE TYPE TOTAL BODY INTERNAL ORGAN 1ST.

2ND QUARTER QUARTER JAN-MAR APR-JUN 0OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL

0. 00E+00 2.17E-04 2.17E-04 0.OOE+00 2.18E-04 2.18E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 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 0.00 0.00 0.01 0. 00 CRIT. ORGAN(MREM) 5.0 3.0 0.01 10.0 0.00 LIVER LIVER RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

DRESDEN STATION UNIT THREE 2004 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CHILD RECEPTOR WATER SYSTEM

  • CALCULATED 10/19/04 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0. OOE+00 2.11E-04 2.11E-04
0. OOE+00 0.OOE+00 0.OOE+00 2.11E-04 2.11E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM W OF LIMIT 0.005 0.005 LIVER 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 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

i DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CALCULATED 10/19/04 TEENAGER RECEPTOR DOSE TYPE TOTAL BODY INTERNAL ORGAN 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL 0.OOE+00 0.OOE+00 0.OOE+00 1.16E-04 1.16E-04 0.OOE+00 0.OOE+00 0.OOE+00 1.17E-04 1.17E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

10 CFR 50 APP. I


 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ

% OF APP. I TOTAL BODY (MREM) 1.5 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0. 00 0. 00 0.00 0.01

0. 00 LIVER 3.0 0.00 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ODCM ODCM ANNEX REVISION SOFTWARE VERSION DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

DRESDEN STATION UNIT THREE 2004 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CALCULATED 10/19/04 TEENAGER RECEPTOR DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 1.10E-04 1.10E-04 1.10E-04 1.10E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.003 0.003 LIVER 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 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

Milan DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CALCULATED 10/19/04 ADULT RECEPTOR DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OQE+00 1.64E-04 1.64E-04 1.65E-04 1.65E-04 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0. 00 0.00 0. 00 0.00 0.01 0.00 LIVER 3..0 0.01 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

mw mm=

DRESDEN STATION UNIT THREE 2004 ANNUAL REPORT PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

01/01/04 TO 12/31/04 CALCULATED 10/19/04 DOSE TYPE 1ST QUARTER JAN-MAR ADULT RECEPTOR 2ND QUARTER Qt APR-JUN al 3RD JARTER JL - SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0.OOE+00 1.56E-04 1.56E-04 1.56E-04 1.56E-04 0.OOE+00 0.OOE+00 0.OOE+00 LIVER LIVER THIS IS A REPORT FOR THE CALENDAR YEAR 2004 COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.004 0.004 LIVER 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 ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

mmm-

  • DELIVER TO HEALTH PHYSICS
  • 19-oct-2004 17:49:01 AQUATIC Effluents -

10CFR50 Listing STATION: DRESDEN STATION UNIT:

3 PERIOD:

12/01/04 12/31/04 NAME:

MOORE REPORT:

MONTHLY MODE:

ACTUAL For INFANT dose calculations, the included pathways are:

DRINKING WATER For ADULT dose calculations, the included pathways are:

DRINKING WATER FISH

NUCLIDES (uCURIES)

NUCLIDE VALUE H-3 Fe-55 Sr-89 Sr-90 3.44E+07 3. 34E+03

4. 15E+01 2.91E+00

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DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 INFANT RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 CURRENT DOSE TYPE MONTH 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 2.1OE-04 BODY INTERNAL 2.10E-04 ORGAN LIVER 0.OOE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 0.OOE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER 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 CRIT. ORGAN(MREM) 5.0 0. 00 0.00 0.00

0. 00 0. 00 0.00 0.01 0.00 LIVER 3.0 0.01 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

som e-i DRESDEN STATION UNIT THREE ACTUAL 2004 PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 INFANT RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 CURRENT MONTH DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 2.10E-04 BODY INTERNAL 2.10E-04 ORGAN LIVER 0.OOE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 0.0OE+00 0.OOE+00 0.OOE+00 2.10E-04 2.10E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.005 0.005 LIVER 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 1.1 ODCM SOFTWARE VERSION 1.1 ODCM DATABASE VERSION 1.1 JULY 1994 January 1995 January 1995

looloomwo.wn DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 CHILD RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 DOSE TYPE CURRENT 1ST MONTH QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 2,17E-04 0.OOE+00 0.OOE+00 0.OOE+00 2.18E-04 0.OOE+00 0.OOE+00 0.OOE+00 2.17E-04 2.17E-04 2.18E-04 2.18E-04 LIVER LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

10 CFR 50 APP. I


 % OF APP I.

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC YRLY OBJ

% OF APP. I TOTAL BODY (MREM) 1.5 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0. 00 0.00 0.00 0.01 O. 00 LIVER 3.0 0.01 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

wlb.

'O DRESDEN STATION UNIT THREE ACTUAL 2004 PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 CHILD RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 DOSE TYPE CURRENT 1ST MONTH QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL 2.11E-04 TOTAL 2.11E-04 BODY INTERNAL 2.11E-04 ORGAN LIVER 0.OOE+00 0.OOE+00 0.OOE+00 2.11E-04 0.OOE+00 0.OOE+00 0.OOE+00 2.11E-04 2.11E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.005 0.005 LIVER 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 ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

No

.. EE9 A

DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 TEENAGER RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 DOSE TYPE CURRENT 1ST MONTH QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 1.16E-04 BODY INTERNAL 1.17E-04 ORGAN LIVER L 0.OOE+00 0.OOE+00 0.00E+00 1.16E-04 1.16E-04 0.OOE+00 0.OOE+00 0.OOE+00 1.17E-04 1.17E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0. 00

0. 00 0. 00 0.00 0.01 0.00 LIVER 3.0 0.00 10.0 0.00 LIVER RESULTS BASED UPON:

ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995

A DRESDEN STATION UNrT THREE ACTUAL 2004 PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 TEENAGER RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 CURRENT DOSE TYPE MONTH 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 1.1OE-04 BODY INTERNAL 1.10E-04 ORGAN LIVER 0.OOE+00 0.OOE+00 0.OOE+00 1.10E-04 1.10E-04

0. OOE+00 0.OOE+00 0.OOE+00 1.10E-04 1.10E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

40 CFR 141 TYPE TOTAL BODY INTERNAL ORGAN ANNUAL LIMIT 4.0 MREM 4.0 MREM

% OF LIMIT 0.003 0.003 LIVER 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 ODCM ODCM ANNEX REVISION 1.1 JULY 1994 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1 January 1995

DRESDEN STATION UNIT THREE ACTUAL 2004 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 ADULT RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 DOSE TYPE CURRENT 1ST MONTH QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 1.64E-04 0.OOE+00 0.OOE+00 BODY INTERNAL 1.65E-04 0.OOE+00 0.OOE+00 ORGAN LIVER

0. OOE+00
0. OOE+00 1.64E-04 1.64E-04 1.65E-04 1.65E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

10 CFR 50 APP. I


 % OF APP I. ------------

QTRLY 1ST QTR OBJ JAN-MAR 2ND QTR 3RD QTR 4TH QTR APR-JUN JUL-SEP OCT-DEC YRLY

% OF OBJ APP. I TOTAL BODY (MREM) 1.5 CRIT. ORGAN(MREM) 5.0 0. 00 0.00

0. 00 0.00 0.00 0.00 0.01 0. 00 3.0 10.0 0.01 0.00 LIVER LIVER RESULTS BASED UPON:

ODCM ODCM ODCM ANNEX REVISION 1.1 JULY 1994 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1 January 1995

I

.I DRESDEN STATION UNIT THREE ACTUAL 2004 PROJECTED DOSE AT NEAREST COMMUNITY WATER SYSTEM

  • PERIOD OF RELEASE -

12/01/04 TO 12/31/04 CALCULATED 10/19/04 ADULT RECEPTOR DATABASE CONTAINS DATA THROUGH 12/31/04 DOSE TYPE CURRENT 1ST MONTH QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL 1.56E-04 BODY INTERNAL 1.56E-04 ORGAN LIVER 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 1.56E-04 1.56E704 0.OOE+00 1.56E-04 1.56E-04 LIVER LIVER THIS REPORT CONTAINS RELEASES FOR THE FOURTH QUARTER COMPLIANCE STATUS -

40 CFR 141 TYPE ANNUAL LIMIT TOTAL BODY INTERNAL ORGAN 4.0 MREM 4.0 MREM

% OF LIMIT 0.004 0.004 LIVER 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 ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.1 JULY 1994 1.1 January 1995 1.1 January 1995

Scaling factors (6-29-04)

Co-60 NA H-3 NA Fe-55 2.68 Sr-89 3.33E-02 Sr-90 2.33E-03 Leakage rate (gpm)

Volume (gal)

Volume (L)

CST (uCiml) 3.128E-07 8.624E-03 8.383E-07 1.041 E-08 7.288E-1 0 0.5 2

263520 1054080 997423.2 3989692.8 Activity (uCi) 0.5 Activity (Ci) 2 8.602E+06 8.361 E+02 1.038E+01 7.269E-01 3.441 E+07 3.344E+03 4.154E+01 2.908E+00 8.602E+00 8.361 E-04 1.038E-05 7.269E-07 3.441 E+01 3.344E-03 4.1 54E-05 2.908E-06

mwi iwmmw

.,V (I cli 2/3 CST Co-60 (uCi/ml) 10/08/04 01:00 6.55E-08 10/08/04 01:00 9.25E-08 10/06/04 00:15_

10104104 02:00 5,80E-08 09/30/04 23:01 09/29/04 15:20.

09/26/04 21:30 9.04E-08 09/23/04 23:30 09/22/04 00:05 09/20/04 00:15 09/17/04 00:06 8.28E-08 09/15/04 00:20 6.38E-08 09/13/04 00:15 09/10/04 00:03 1.65E-07 09/08/04 00:07 09/06/04 01:30 09/03/04 01:15 09/01/04 02:10 1.30E-07 08/30/04 01:15 08/27/0400:05 08/25/04 03:39 08/23/04 00:08 8.70E-08 08/20/04 00:10 2.39E-07 08/ 18/04 08:00 08j16/04 02:00 _

08/12/04 14:15 08/08/04 23:30 1.37E-07 08/06/04 00:20

.13E-07 08/04/04 00:00 1.1 OE-07 08702/04 00:10 8,46E-08 07/29/04 23:15 07/28/04 00:30 07/26/04 00:25 1.21 E-07 07/23/04 00:05 1.33E-07 07i21i0400:05 1.89E-07 07i19i0400:55 1.37E-07 07/19/04 00:15 1.37E-07 07/15/04 23:05 2.68E-07 07/13/04 23:04 1.94E-07 07/11/04 23:04 1.64E-07 07/09/0400:14 2.60E-07 07/07/04 00:10 2.81E-07 07/05/04 00:00 3.33E-07 07/02/04 02:36 1.84E-07 06/30/04 05:06 2.70E-07 06/28/04 04:08 3.89E-07 06/28/04 00:15 5.80E-07 06/24/04 23:30 5.92E-07 06/23/04 00:00 6.09E-07 06/20/04 23:40 7.47E-07 06/18/04 01:10 1.1OE-06 06/16/04 01:40 1.68E-06 06/14/04 02:25 2,94E-06 06/11/04 01:30 9.01 E-07 06/09/04 00:15 2.01 E-07 06/07/04 01:45 9.83E-08 06/04/04 00:15 1.11 E-07 06/02/04 00:55 2.52E-07 05/31/04 00:15 3.32E-07 05/28/0401:16 2.57E-07 05/26/04 00:20 8.13E-07 05/24/04 00:20 4.82E-07 05/21/04 00:10 2.01 E-07 05/19/04 00:05 1.69E-07 05/17/04 00:15 1.77E-07 05/17/04 00:15 2.36E-07 05/14/04 16:05 2.48E-07 05/12/04 00:38 3.67E-07 05/06/04 18:10 2.26E-07 05/04/04 19:50 7.81E-08 05/03/04 01:00 9.27E-08 04/29/04 23:29 2.95E-07 04/28/04 00:14 1.79E-07 04/26/0400:12 04/19/04 00:35 04/1'6/04 00:10 04/14/04 00:20 2.64E-07 04/12/04 01:00 3.85E-07 04/09/04 04:05 6.60E-08 04/09/04 01:40 04/07/04 01 :45 04/05/04 02:00 04/02/04 01:05 1.72E-07 03/31/04 01:30 1.40E-07 03/31/04 01:30 1.14E-07 03/29/04 02:30 I.57E-07 03/24/04 00:59 1.50E-07 03/22/04 03:00 1.50E-07 03/18/04 23:10 1.56E-07 03/17/04 00:00 8.55E-08 03/14/04 23:45 1.17E-07 03/12/04 00:10 03/10/04 01:14 9.02E-08 03/08/04 00:43 1.1 3E-07 03/03/04 01:00C 03/01/04 02:10 02/27/04 05:30 02/25/04 00:55 02/20/04 00:35 02/18/04 00:00 02/11/04 00:38_

02/09/04 00:47 _1 02/06/04 00:10 7.51 E-08 02/04/04 04:45 6.63E-08 02/02/04 02:50 5.93E-08 02/02/04 02 :50 7.78E-08 01/30/04 00:00 1.55E-07 01/27/04 23:05 9.82E-08 01/26/04 23:10 1.12E-07 01/25/04 23:50 1.62E-07 01/23/04 00:25 8.84E-08 01/21/04 00:25 7.07E-08 01/18/04 21:30 01/18/04 00:10 1.1 1E-07 01/16/04 01:30 4.32E-07 01/14/04 02:00 1.50E-07 01/12/04 00:40 3.86E-07 01/09/04 01:00 4.35E-07 01/07/04 01:00 3.16E-07 01 /05/04 00:20 3.32E-07 01/02/04 03:15 4.21E-07 12/31/03 00:30 3.92E-07 12/29/03 00:40 3.46E-07 12/23/03 22:25 8.46E-07 12/21/03 22:20 1.04E-06 12/18/03 22:25 1.37E-06 12/16/03 23:30 1.24E-06 12/15/03 18:50 2.19E-07 12/14/03 19:00. 2.91 E-07 12/13/03 22:02 2.54E-07 12/13/03 00:50 2.66E-07 12/12/03 00:03 2.04E-07 12/11/03 08:55 2.05E-07 12/08/03 00:15 2.81E-07 12/05/03 00:00 2.45E-07 12/03/03 00:15 1.99E-07 12/01/03 00:16 1.62E-07 11 28i03 00:15 2.26E-07 11/26/03 00:05 2.82E-07 11/24/03 00:15 2.85E-07 11/20/03 23:30 3.90E-07 11/18/03 23:10 4,68E-07 11/16/03 23:30 4.47E-07 11/12/03 00:20 5.17E-07 Average 3.1279E-07

RP-DR-605 Revision 0 Page 17 of 18 DATA SHEET 4 SCALING FACTOR RESULTS Waste Stream(s)

(L LL"z

(

ckj c,-

)

X TBase Ncli Sca led Nucl"

-'I ide

,Saling uFctor Co-60 C-14 Co-60 Fe-55 Co-60 Ni-63 E-Z_

Sr-90 Tc-99

-9, e-1-129 LL ku-&

Pu-239 i. ve

-5

@u-!tR Pu-238

. k Pu-241

Prepared By: 7 Reviewed By:.

J,

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CY-DR-1 20-600 Revision 1 l Page 6 of 6 Level 3 - Information Use DATA SHEET 3 LIQUID DISCHARGE SCALING FACTOR

SUMMARY

I Nuclide Ratio Scaling factor Fe-55/Co-60 ZAt Sr-89/Co-60 Sr-90/Co-60 3

Prepared by/Date:

/6-ITO2 Reviewed by/Date:

/

i.

4

DATA SHEET 1 LIQUID RADWASTE SCALING FACTOR DETERMINATION WORKSHEET Difficult to Measure (DTM) Radionuclide (Circle):

Fe Sr-89 Sr-90 Date Co-60 uCVml DTM uCiml Ratio DTM /Co-60 Log(DTM/Co-60) Log Upper range Log Lower Range Outlier (yes or no) 20-Jul-02 1.684E-06 6.540E-06 3.884E+00 0.5893 1.4285

-0.5715 no 14-Aug-02 6.209E-07 LLD N/A N/A 1.4285

-0.5715 N/A 12-Sep-02 1.745E-06 3.300E-06 1.891 E+00 0.2766 1.4285

-0.5715 no 19-Oct-02 7.676E-07 LLD N/A N/A 1.4285

-0.5715 N/A 7-Nov-02 1.640E-07 LLD N/A N/A 1.4285

-0.5715 N/A 13-Jan-03 1.694E-07 LLD N/A N/A 1.4285

-0.5715 N/A 3-Feb-03 2.809E-07 7.380E-07 2.628E+00 0.4196 1.4285

-0.5715 no Average of Logs 0.4285 Scaling Factor 2.68E+00

)

7 Prepared B

-17 140 Reviewed l

I /

a a 14

)l I

Is II Ir 11 I.

DATA SHEET 1 LIQUID RADWASTE SCALING FACTOR DETERMINATION WORKSHEET Difficult to Measure (DTM) Radionuclide (Circle):

Fe-55 Sr-89 E)

Date Co-60 uCi/ml DTM uCiml Ratio DTM /Co-60 Log(DTM/Co-60) Log Upper range Log Lower Range Outlier (yes or no) 20-Jul-02 1.684E-06 LLD N/A 1.0000

-1.0000 N/A 1 4-Aug-02 6.209E-07 LLD N/A 1.0000

-1.0000 N/A 12-Sep-02 1.745E-06 LLD N/A 1.0000

-1.0000 N/A 19-Oct-02 7.676E-07 LLD N/A

_1.0000

-1.0000 N/A 07-Nov-02 1.640E-07 LLD N/A 1.0000

-1.0000 N/A 13-Jan-03 1.698E-07 LLD N/A 1.0000

-1.0000 N/A 03-Feb-03 2.809E-07 LLD N/A 1.0000

-1.0000 N/A Average of Logs Scaling Factor 0.0000 O.OOE+00 Prepared Reviewed by.

'D S DATA SHEET 1

,-.1 I

LIQUID RADWASTE SCALING FACTOR DETERMINATION WORKSHEET Difficult to Measure (DTM) Radionuclide (Circle):

Fe-55 E

Sr-90 Date Co-60 uCi/ml DTM uCi/mi Ratio DTM /Co-60 Log(DTM/Co-60) Log Upper range Log Lower Range Outlier (yes or no) 20-Jul-02 1.6837E-06 0

N/A 1.0000

-1.0000 N/A 14-Aug-02 6.20941 E-07 LLD N/A 1.0000

-1.0000 N/A 12-Sep-02 1.74539E-06 LLD N/A 1.0000

-1.0000 N/A 19-Oct-02 7.67607E-07 LLD N/A 1.0000

-1.0000 N/A 7-Nov-02 0.000000164 LLD N/A 1.0000

-1.0000 N/A 13-Jan-03 1.698E-07 LLD N/A 1.0000

-1.0000 N/A 3-Feb-03 2.8086E-07 LLD N/A 1.0000

-1.0000 N/A Average of Logs 0.0000 I Scaling Factor I 0

Prepared I

74 7-Reviewed B

--II.--.--,--,--,----

,  -,-- --- ----------

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