ML18058B033

From kanterella
Jump to navigation Jump to search
Semiannual Radioactive Effluent Release & Waste Disposal Rept,Jan-June 1992.
ML18058B033
Person / Time
Site: Palisades Entergy icon.png
Issue date: 06/30/1992
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18058B032 List:
References
NUDOCS 9209030209
Download: ML18058B033 (17)
v • d • e


Text

ENCLOSURE 1 Consumers Power Company Palisades Plant Docket 50-255 SEMI ANNUAL RADIOACTIVE EFFLUENT RELEASE AND WASTE DISPOSAL REPORT JANUARY THROUGH JUNE 1992 August 27, 1992

. (~- 920903020~ 6~8~§f55

\ PDR ADOC PDR R

PALISADES NUCLEAR PLANT SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT January - June 1992 This report provides information relating to radioactive ~f fluent releases and solid radioactive waste processing at the Palisades Nuclear Plant during the period of January through June 1992. The report format is detailed in Plant Technical Specification

6. 9. 3. lA. Palisades was off-line February 7 to April 19 for reactor refueling.
1. Supplemental Information A. Batch Releases Information relating to batch release of gaseous and liquid effluents is provided in Table HP 10.5-1 (Attachment 1) .

B. Abnormal Releases There was one ( 1) reportable incident of an abnormal gaseous release from Palisades during the January - June 1992 reporting period. A brief description is provided.

On January 6, 19 9 2 an unmoni tared

  • re'1e'ase of gaseous radioactivity to the environment due to the
  • escape airlock inner door equalizing valve being stuck open.

The valve was stuck open for approximately 35 minutes following a seal inspection earlier in the shift. This occurrence was documented in,Litensee Event Report 92-004-02.

Analysis of Containment air indicated that 1. 34E-02 total curies had been released. The isotopic quantities released are included in the fir~t quarter totals of this report.

c. Lower Limits of Detection (LLD's) for gaseous and liquid effluents is provided in Attachment 5.

D. Radioactive Effluent Monitoring Instrumentation

1) Main Steam Gross Gamma Activity Monitors (RIA 2323 and 2324)

On February 14, 1992, it was determined that the main steam line radiation elements (RE-2323 and RE-2324) were not environmentally qualified as required by Regulatory Guide 1. 97 and 10CFR50. 49 and as a result were declared inoperable. Per Palisades Technical Specification, Table 3. 24-2, Item Sa, the pre-planned alternate method of

The root cause appears to be personnel error in that there was a lack of attention to detail in both the modification, which installed the main steam line radiation elements, and the development of the list of RG 1.97 variables.

The corrective action for this event is to provide justification for any exemption to the requirements of RG 1.97 for these instruments. This activity is awaiting NRC action.

A detailed report of this situation is documented in Corrective Action documents E-PAL-92-027 and LER 92-012.

2. Gaseous Effluents

' Table HP 10. 5-2 (Attachment 2) lists and summarizes all gaseous radioactive effluents released during the reporting period. The unidentified beta was 1. 74E-4% of the total release.

3. Liquid Effluents Table HP 10.5-3 (Attachment 3) lists and summarizes all liquid radioactive effluents released during the reporting period.

The unidentified beta was 9.61E-04% of the total release.

4. Solid Waste There were no solid waste shipments from January 1 to June 30, 1992 (Table HP 10.5-4, Attachment 4.).
5. Summary of Radiological Impact on Man Potential doses to individuals and populations were calculated using GASPAR and LADTAP computer program codes. The first and second quarter values for curies released were input for each nuclide and summarized as follows:

A. The offsite air doses at the site boundary (0.48 SSE) due to noble gase-s_- were 3. 37E-03 millirad beta- and 1.12E-03 millirad gamma for the first quarter; and 1.43E-04 millirad beta and 3.47E-06 gamma for the second quarter.

The maximum noble gas offsite air dose to the nearest residence (0.5 mi S) for beta occurred during the first quarter, being 2. 4 lE-03 millirads beta and for gamma during the first quarter being 7.99E-04 millirads gamma

  • B.

The most restrictive organ dose to an individual in an unrestricted area (based on identified critical receptors) from gaseous effluent releases (tritium, particulate and iodine) was to child bone for the first and second quarters. Doses were 1.72E-02 and 2.97E-2 millirem, respectively.

C. Integrated total body doses to the general population and average doses to individuals within the population from gaseous effluent release pathways to a distance of 50 miles from the site boundary were 1.19E-02 personRem and 1.13E-05 millirem for the first quarter; and 1.40E-02 personRem and 1.33E-05 millirem for the second quarter.

D. The maximum total body dose to an individual in unrestricted water-related exposure pathways was 5. 77E-04 millirem (adult) and 7.41E-04 millirem (adult) for the first and second quarters, respectively. The maximum organ doses were 1. lOE-03 millirem (teenage bone) for the first quarter and 1.19E-03 millirem (child bone) for the second quarter.

E. Integrated total body doses to the general population and average doses to individuals within the population from liquid effluent release pathways to a distance of 50 miles from the site boundary were: 2.28E-03 personRem and 2.16E-06 millirem for the first quarter and 2.77E-03 personRem and 2.63E-06 millirem for the second quarter.

6. Process Control Program (PCP)

No changes were made to the Process Control Program.

7. Offsite Dose Calculation Manual (ODCM)

A. The ODCM, Rev 6, is included as Attachment 6. The Offsite Dose Calculation Manual (ODCM) was revised to change critical receptor dispersion values (Table 1.4A, Attachment 7) and design objective annual quantities.

These changes result from the 1991 Palisades Land Use Census which is included as Table 1.4 (Attachment 8).

The distance in the nearest critical receptor "dairy herd" to Palisades changed, which also changed dispersion factors.

The Safety Review (Attachment 9) documents these changes and will not reduce the accuracy or reliability of dose calculations or setpoint determinations.

  • ATTACHMENT 1 Consumers Power Company Palisades Plant Docket 50-255 SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT BATCH RELEASES August 27, 1992
  • 1 Page
  • TABLE HP 10.5-1 PALISADES PLANT/SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT BATCH RELEASES January 1, 1992 to June 30, 1992 A. GASEOUS Units 1st Qtr 2nd Qtr Number of Releases 2 15 Total Release Time Minutes 229 4825 Maximum Release Time Minutes 125 818 Average Release Time Minutes 115 322 Minimum Release Time Minutes 104 109
  • B. LIQUID Units 1st Qtr 2nd Qtr Number of Releases 2 2 Total Release Time Minutes 2714 993 Maximum Release Time Minutes 2180 508 Average Release Time Minutes 1357 497 Minimum Release Time Minutes 534 485
  • ATTACHMENT 2 Consumers Power Company Pali sades Pl ant Docket 50-255 SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT GASEOUS EFFLUENTS - SUMMATION OF RELEASES August 27, 1992
  • 3 Pages
  • TABLE HP 10.5-2
  • PALISADES PLANT/SEHIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT GASEOUS EFFLUENTS - SUHHATION OF RELEASES January 1, 1992 to June 30, 1992 A. FISSION AND ACTIVATION GASES Units 1st Qtr 2nd Qtr Est Total Error %
1. Total release Ci 7.18E+Ol 1. 75E+OO
2. Average release rate for period uCi/sec 9.13E+OO 2.22E-01 4.7
3. Percent of annual avg. MPC  % 4.34E-03 1.04E-04 B. IODINES*
1. Total Iodine Ci 6.50E-04 7.0lE-05 *
2. Average release rate for period uCi/sec 8.26E-05 8.92E-06
3. Percent of annual avg MPC  % 1. 17E-04 1.03E-05 18.4
c. PARTICULATES
1. Particulates w/half-life > 8 days Ci 6.72E-05 9.46E-05
2. Average release rate for period uCi/sec 8.55E-06 1.02E-05
3. Percent of annual avg MPC  % 3.04E-05 5.22E-05
4. Gross alpha radioactivity Ci 1.48E-05 4.32E-05 16.7 D. TRITIUH
1. Total Release Ci 1. 85E+OO 1.48E+OO
2. Average release rate for period uCi/sec 2.36E-01 1. 89E-01
3. Percent of annual avg MPC  % 1.69E-04 1.35E-04 E. 1. Beta airdose at Site Boundary due to noble gases (TS 3.24.5.2a) mRads 3.37E-03 1.43E-04
2. Per.cent limit  % 3. 37E-02 1. 43E-03
3. Gamma airdose at Site Boundary due to noble gases (TS 3.24.5.2a) mRads 1.12E-03 3.47E-06
4. Percent limit  % 2.24E-02 6.94E-05 F. 1. Maximum organ dose to public based on critical receptors (TS 3.24.5.3) mRem 1.72E-02 2.97E-02
2. Percent of limit  % 2.29E-01 3.96E-Ol
  • NOTE: Data is reported for r~131 and I-133 only.
  • TABLE HP 10.5-2
  • PALISADES PLANT/SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT GASEOUS EFFLUENTS - SUHKATION OF RELEASES January 1, 1992 to June 30, 1992
1. FISSION GASES Units 1st Quarter 2nd Quarter Argon-41 Ci 6.30E-05 *<LLD Krypton-85 Ci 1. 57E-01 1.54E+OO Krypton-85m Ci 1.57E-05 <LLD Krypton-87 Ci <LLD <LLD Krypton-88 Ci <LLD <LLD Xenon-131m Ci 1.04E+OO 1.05E-01 Xenon-133 Ci 7.00E+Ol 1.00E-01
  • Xenon-133m Ci 4.62E-01 <LLD Xenon-135 Ci 9.23E-02 3.02E-06 Xenon-135m Ci <LLD <LLD Xerion-138 Ci <LLD <LLD Total for Period Ci 7.18E+Ol 1. 75E+OO
2. IODINES Iodine-131 Ci 6.37E-04 5.25E-05 Iodine-132 Ci <LLD <LLD Iodine-133 Ci 1.29E-05 1. 76E-05 Iodine-134 Ci <LLD <LLD Iodine-135 Ci <LLD <LLD Total for Period Ci 6.50E-04 7.0lE-05
  • TABLE HP 10.5-2
  • PALISADES PLANT/SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT.

GASEOUS EFFLUENTS - SUHKATION OF RELEASES January 1, 1992 to June 30, 1992

3. . PARTICULATES* Units 1st Quarter 2nd Quarter Manganese-54 Ci <LLD <LLD Cobalt-58 Ci 7.93E-06 3.26E-06 Iron-59 Ci <LLD <LLD Cobalt-60 Ci 6.69E-06 3.63E-06 Zinc-65 Ci <LLD <LLD Strontium-89 Ci S.80E-07 7.0SE-07 Strontium-90 Ci 5.lOE-07 7.30E-07 Molybdenum-99 Ci <LLD <LLD Cesium-134 Ci <LLD <LLD Cesium-137 Ci <LLD 1.20E-06 Cerium-141 Ci <LLD <LLD Cerium-144 Ci <LLD <LLD Chromium-51 Ci 2.58E-06 <LLD Net unidentified beta Ci 4.89E-05 8.51E-05 Total Ci 6. 72E-05 9.46E-05
  • Particulates with half-lives > 8 days.
    • Particulates with half-lives < 8 days; not reflected in overall isotopic totals .
  • ATTACHMENT 3 Consumers Power Company Palisades Plant Docket 50-255 SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT LIQUID EFFLUENTS - SUMMATION OF RELEASES August 27, 1992
  • 2 Pages
  • TABLE HP 10.5-3 PALISADES.PLANT/SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT LIQUID EFFLUENTS - SUHHATION OF REL&\SES January 1, 1992 to June 30, 1992 A. FISSION.AND ACTIVATION.GASES Units 1st Qtr 2nd Qtr Est Total .

Error %

1. Total release (not including tritium, gases, alpha) Ci 7.36E-04 8.6SE-04
2. Average diluted concentration during period uCi/rnl 2. 80E-11 2.94E-11 10.7
3. Percent of MPC  % 2.44E-03 1. 97E-03 B. TRITIUH
1. Total release Ci 1.89E+Ol 1. 74E+Ol 2~ Average diluted concentration during period uCi/rnl 7.17E-07 S.91E-07
3. Percent of MPC  % 2.39E-02 1. 97E-02 .59 C. DISSOLVED AND ENTRAINED GASES
1. Total Release Ci <LLD <LLD
2. Average diluted concentration during period uCi/rnl N/A N/A
3. Percent of MPC  % N/A N/A N/A D. GROSS ALPHA RADIOACTIVITY (Total release) Ci S.81E-07 2.94E-07 E. VOLUHE OF VASTE RELEASED (Prior to dilution) Liters S.28E+OS 3.58E+OS F. VOLUHE OF DILUTION VATER USED DURING PERIOD Liters 2.63E+10 2.94E+10 G. HAXIlflJH DOSE COHHITHENT - lffiOLEBODY rnRem 5. 77E-04 7. 41E-04 Percent of TS 3.24.4.la limit  % 3.8SE-02 4.94E-02 H. HAXIlflJH DOSE COHHITHENT - ORGAN rnRern 1.lOE-03 1.19E-03 Percent of TS 3.24.4.la limit  % 2.20E-02 2.38E-02
  • TABLE HP 10.5-3 PALISADES PLANT/SEMIANNUAL RADlOACTIVE EFFLUENT RELEASE REPORT LIQUID EFFLUENTS January 1, 1992 to June 30; 1992
1. NUCLIDES RELEASED Units 1st Quarter 2nd Quarter Manganese-54 Ci <LLD <LLD Cobalt-58 Ci 1.03E-04 2.35E-04 Iron-59 Ci <LLD <LLD Cobalt-60 Ci 2.51E-04 1.38E-04 Zinc-65 Ci <LLD <LLD Strontium-89 Ci 3.59E-06 8.24E-07 Strontium-90 Ci 1.48E-06 2.16E-06 Molybdenum-99 Ci .<LLD . <LLD Iodine-131 Ci <LLD <LLD Cesium-134 Ci <LLD 1.81E-05 Cerium-137 Ci 1. 92E-04 3.07E-04 Cerium-141 Ci <LLD <LLD Cerium-144 Ci <LLD <LLD Net Unidentified Beta Ci 1.85E-04 1.64E-04 Fission & Activation Product Total Ci 7.36E-04 8.65E-04 Tritium Ci l.89E+Ol 1. 74E+Ol Grand Total Ci l.89E+Ol 1. 74E+Ol

ATTACHMENT 4 Consumers Power Company Pa1i sades Pl ant Docket 50-255 SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT SOLID WASTE August 27, 1992 1 Page

  • TABLE HP 10.5-4 PALISADES PLANT/SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT SOLID VASTE January 1, 1992 to June 30, 1992 Waste Source of Solidification Container Volume Total Principal Class 'Waste A~ent * ~ (cu ft) Curies Radionuclides NOTE: No solid radvaste shipments from January 1, 1992 to June 30, 1992 .
  • ATTACHMENT 5 Consumers Power Company Palisades Plant Docket 50-255 SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT LOWER LIMITS OF DETECTION FOR PALISADES EFFLUENTS
  • August 27, 1992 1 Page

LOVER LIMITS OF DETECTION (LLDS) FOR PALISADES EFFLUENTS Gaseous Effluents Nuclide LLD (uCi/cc)*

CrSl 1. 72E-13 Mn54 3.29E-13 Co58 2.17E-14 Co60 3.36E-14 Fe59 2.99E-14 Zn65 3.62E-14 Se75 2.99E-14 Csl34 2.56E-14 Csl37 3.76E-14 Zr95 4.61E-14 Sh125 8.63E-14 Nb95 2.84E-14 Liquid Effluents

  • Nuclide Co58 Mn54 Fe59 LLD (uCi/cc)**

6.16E-08 1.28E-07 2.84E-07 Zn65 4.16E-07 Co60 1.31E-07 Csl34 1.44E-07 Ce137 1. 76E-07

!131 1. 87E-07

  • From typical stack and/or waste gas decay tank release analysis.
    • From typical liquid release analysis.
Retrieved from "https://kanterella.com/w/index.php?title=ML18058B033&oldid=2414258"