DCL-17-031, Transmittal of 2016 Annual Radioactive Effluent Release Report

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Transmittal of 2016 Annual Radioactive Effluent Release Report
ML17123A448
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 04/26/2017
From: Welsch J
Pacific Gas & Electric Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
DCL-17-031
Download: ML17123A448 (228)
v • d • e


Text

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rai'£ra Pacific Gas and Electric Company James M. Welsch Vice President, Nuclear Generation Diablo Canyon Power Plant Mail Code 104/6 P. 0. Box 56 Avila Beach, CA 93424 805.545.3242 .

Internal: 691. 3242 April 26, 2017 Fax: 805. 545.4884 PG&E Letter DCL-17-031 U.S. Nuclear Regulatory Commission 10 CFR 50.36a(a)(2)

. ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 2016 Annual Radioactive Effluent Release Report

Dear Commissioners and Staff:

Pacific Gas and Electric Company (PG&E) is submitting the enclosed 2016 Annual Radioactive Effluent Release Report in accordance with 10 CFR 50.36a(a)(2) and Section 5.6.3 of the Diablo Canyon Power Plant (DCPP) Technical Specifications.

Enclosure 1 includes the DCPP 2016 Annual Radioactive Effluent Release Report, which describes the quantities of radioactive gaseous and liquid effluents released from the plant, and the solid radioactive waste shipments made during the period of January 1, 2016, through December 31, 2016.

Enclosure 2 is a compact disk containing meteorological data as described in Enclosure 1,Section VIII, "Meteorological Data."

PG&E makes no new or revised regulatory commitments (as defined by NEI 99-04) in this letter.

If you have any questions, please contact Mr. Clint Gans at (805) 545-3419.

Sincerely, A member of the STARS Alliance Callaway

  • Diablo Canyon
  • Palo Verde
  • Wolf Creek

Document Control Desk PG&E Letter DCL-17-031 April 26, 2017 Page2 bnsm/4540 Enclosures cc: Diablo Distribution cc/encl: Dr. Penny E. Borenstein, San Luis Obispo County Health Officer (w/o CD)

Kriss M. Kennedy, NRC Region IV Administrator John M. Robertson, Executive Officer, CCRWQCB (w/o CD)

Bernice E. Minga, INPO (w/o CD)

Gonzalo L. Perez, Branch Chief, California Department of Public Health (w/o CD)

Christopher W. Newport, NRC Senior Resident Inspector Balwant K. Singal, NRC Senior Project Manager A member of the STARS Alliance Callaway

  • Diablo Canyon
  • Palo Verde
  • Wolf Creek

Enclosure 1 PG&E Letter DCL-17-03 1 DIABLO CANYON POWER PLANT 2016 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT January 1, 2016 - December31 , 2016

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT Annual Radioactive Effluent Release Report January 1, 2016 through December 31, 2016 Table of Contents Introduction 1 I. Supplemental Information 2

11. Changes to Radwaste Management 10 111. Changes to the Offsite Dose Calculation Manual 11 IV. Land Use Census 12 V. Gaseous and Liquid Effluents 12 Table 1- Gaseous Effluents - Summation of All Releases 13 Table 2- Gaseous Effluents - Ground-Level Releases 16 Table 3- Gaseous Effluents - Lower Limits of Detection 20 Table 4- Liquid Effluents - Summation of All Releases 22 Table 5- Liquid Effluents - Nuclides Released 25 Table 6- Liquid Effluents - Lower Limit of Detection (LLD) 31 VI. Solid Radwaste Shipments 34 VII. Radiation Doses from Radioactive Effluents 36 Table 7 - Radiation Dose Due to the Release of Radioactive Liquid 42 Effluents Table 8- Radiation Dose Due to the Release of Radioactive Gaseous 43 Effluents Table 9- Percent of Technical Specification Limits for Radioactive Liquid 45 Effluents Table 10 - Percent of Technical Specification Limits for Radioactive 46 Gaseous Effluents VIII. Meteorological Data 48

Enclosure 1 PG&E Letter DCL-17-031

'\

DIABLO CANYON POWER PLANT

- Annual Radioactive Effluent Release Report January 1, 2016 through December 31, 2016 Attachments

1. Diablo Canyon Power Plant Program Directive, CY2, "Radiological Monitoring and Controls Program," Revision 78
2. Diablo Canyon Power Plant Interdepartmental Administrative Procedure (IDAP),

CY2.ID1, "Radioactive Effluent Controls Program," Revision 14

3. IDAP RP1 .ID11, "Environmental Radiological Monitoring Procedure," Revision 15
4. Diablo Canyon Power Plant Chemical Analysis Procedure, CAP A-8, "Off-Site Dose Calculations," Revision 38
5. Diablo Canyon Power Plant Departmental Administrative Procedure, RP2.DC2, "Radwaste Solidification Process Control Program," Revision 16
6. Diablo Canyon Power Plant Departmental Administrative Procedure, RP2.DC3, "Radwaste Dewatering Proce§is Control Program," Revision 9
7. 2016 DCPP Land Use Census ii

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT 2016 Annual Radioactive Effluent Release Report Introduction The 2016 Annual Radioactive Effluent Release Report (ARERR) summarizes gaseous and liquid radiological effluent releases from Diablo Canyon Power Plant's (DCPP)

Units 1 and 2. The report includes the dose due to release of radioactive liquid and gaseous effluents and summarizes solid radwaste shipments. The report contains information required by Units 1 and 2 Technical Specification (TS) 5.6.3 and is presented in the general format of Regulatory Guide (RG) 1.21, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water Nuclear Power Plants," Appendix B, "Effluent and Waste Disposal Report." Procedure revisions that implement the Off-Site Dose Calculation Manual, programmatic support procedures and one compact disc containing meteorological data are attached.

In all cases, the doses associated with plant effluent releases during the report period were much less than the respective TS limits.

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Enclosure 1 PG&E Letter DCL-17-031 I. Supplemental Information A. Regulatory Limits

1. Gaseous Effluents
a. Noble Gas Dose Rate Limit ~\

The dose rate in areas at or beyond the site boundary due to radioactive noble gases released in gaseous effluents is limited to less than or equal to 500 millirem (mrem) per year to the total body and less than or equal to 3000 mrem per year to the skin. (Attachment 6 of CY2.ID1, "Radioactive Effluent Controls Program" [RECP])

b. Particulate and Iodine Dose Rate Limit The dose rate in areas at or beyond the site boundary due to iodine-131, iodine-133, tritium, and all radionuclides in particulate form with half lives greater than 8 days in gaseous effluents, is limited to less than or equal to 1500 mrem per year to any organ. (Attachment 6 of RECP)
c. Noble Gas Dose Limit The air dose due to noble gases released in gaseous effluents from each reactor unit to areas at or beyond the site boundary is limited to the following:

Radiation Calendar Quarter Limit Calendar Year Limit Type (Attachment 7 of RECP) (Attachment 7 of RECP)

Gamma 5 millirad 10 millirad Beta 10 millirad 20 millirad

d. Airborne Iodine, Tritium, and Particulate Dose Limit The dose to an individual from iodine-131, iodine-133, tritium, ~md all radionuclides in particulate form with half lives greater than 8 days in gaseous effluents released from each reactor unit to areas at or beyond the site boundary is limited to less than or equal to 7.5 mrem to any organ in any calendar quarter and less than or equal to 15 mrem to any organ during a calendar year. (Attachment 8 of RECP) 2

Enclosure 1 PG&E Letter DCL-17-031

2. Liquid Effluents
a. Concentration With the exception of dissolved or entrained noble gases, the concentration of radioactive material released from the site in liquid form is limited to the concentrations specified in 10 CFR Part 20, Appendix B, Table 2, Column 2. For dissolved or entrained noble gases, the total specific activity .

is limited to 2 x 10-4 microcuries/milliliter (µCi/ml).

(Attachment 3 of RECP) b) Dose The dose or dose commitment to a member of the public from radioactive materials in liquid effluents released from each reactor unit to areas at or beyond the site boundary is limited to the following:

Dose Type Calendar Quarter Limit Calendar Year Limit (Attachment 4 of RECP) (Attachment 4 of RECP)

. Total Bod :5 1 millirem 3 millirem Any Organ 5 millirem 10 millirem

3. Direct Radiation
a. Dose The annual dose equivalent received by a member of the public as a result of exposures to planned discharges of non-radon, radioactive materials is limited in 40 CFR Part 190 to 25 millirem to the total body, 75 millirem to the thyroid, and 25 millirem to any other organ. For 2016, dose from direct radiation has been evaluated vs. the limits identified in 40 CFR Part 190.

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Enclosure 1 PG&E Letter DCL-17-031 B. Maximum Permissible Concentrations

1. Gaseous Effluents Maximum permissible concentrations are not used for determining allowable release rates for gaseous effluents at DCPP.
2. Liquid Effluents With the ~xception of dissolved or entrained noble gases, the concentrations listed in 10 CFR 20, Appendix B, Table 2, Column 2, for radionuclides are used for determining the allowable release concentration at the point of discharge from the site for liquid effluents. For dissolved or entrained noble gases, the allowable release concentration for liquid effluents at the point of discharge is*

limited to 2 x 10-4 µCi/ml total activity.

C. Measurements and Approximations of Total Radioactivity

1. Gaseous Effluents
a. Fission and Activation Gases A pair of radiation monitors equipped with beta scintillator detectors measure the gaseous radioactivity released from the plant vent. The readings from these monitors are correlated to the isotopic concentrations determined in grab samples that are analyzed in the laboratory using a germanium detector.

For plant vent noble gas releases, grab sample results are used to quar:itify releases. The individual batch release data are used to quantify the radioactivity discharged from the gas decay tanks and containment.

A noble gas grab sample is obtained from the plant vent and analyzed at least weekly. The isotopic mixture is assumed to remain constant between grab sample analyses.

Containment purges, gas decay tank releases, and air ejector discharges are released via the plant vent.

The gaseous radioactivity released from the steam generator blowdown tank vent is measured by analyzing liquid or steam condensate grab samples with a germanium detector.

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Enclosure 1 PG&E Letter DCL-17-031 The ratio of unit masses of water flashing to steam and water entering the tank is used to calculate the activity. The isotopic concentrations are assumed. to remain constant between grab samples.

Other poteritial pathways for releasing gaseous radioactivity are periodically monitored by collecting grab samples and analyzing these samples with a germanium detector system.

b. Iodines Radioiodines released from the plant vent are measured through continuous sample collection on silver zeolite cartridges. The cartridges are changed at least weekly and analyzed wit,h a germanium detector. The radioiodine releases are averaged over the period of cartridge sample collection.

Other potential pathways for releasing radioiodines are periodically measured by collecting samples using charcoal or silver zeolite cartridges and analyzing with a germanium detector.

  • Radioactive materials in particulate form released from the plant vent are measured through continuous sample collection on particulate filters. The filters are changed at least weekly and analyzed with a germanium detector. The particulate radioactivity is averaged over the period of particulate filter sample collection. Each filter is analyzed for alpha emitters using an internal proportional counter. Plant vent particulate filters collected during a quarter are used for the composite analysis for strontium-89 and -90, which is counted on an internal proportional counter after chemical separation.

Other potential pathways for releasing radioactive particulate

' are periodically monitored by collecting samples using particulate filters and analyzing these filters with a germanium detector.

c. Tritium Tritium released from the plant vent is monitored by passing a measured volume of plant vent sample through a water column and determining the tritium increase in the water. An aliquot of the water is counted in a liquid scintillation 5

Enclosure 1 PG&E Letter DCL-17-031 spectrometer. The minimum routine sample frequency for tritium in the plant vent is weekly. The tritium concentration is assumed to remain constant between samples.

d. Estimations of Overall Error Sources of error considered for gaseous batch releases are:
1) calibration source; 2) calibration counting; 3) sampling;
4) sample counting; and 5) gas decay tank pressure gauge/containment exhaust fan flow rate.

Sources of error for continuous release are: 1) calibration source; 2) calibration counting; 3) sampling; 4) sample counting; 5) process monitor (RE-14) reading (fission gases only); and 6) plant vent exhaust fan flow rate.

Total error= (cr 2 1 + cr22 + cr2 3 + ... cr 2 i) 112 Where cri = error associated with each component.

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Enclosure 1 PG&E Letter DCL-17-031

2. Liquid Effluents
a. Batch Releases Each tank of liquid radwaste is* analyzed for principal gamma emitters using a germanium detector prior to release. A monthly prerelease analysis includes measurement of dissolved and entrained gases. Volume:...proportional monthly and quarterly composites are prepared from aliquots of each tank volume discharged.

The monthly composite is analyzed for tritium using a liquid scintillation spectrometer and gross alpha radioactivity using an internal proportional counter.

The quarterly composite is analyzed for iron-55 using a liquid scintillation spectrometer and for strontium-89 and -90 using an internal proportional detector following chemical separations. The quarterly composite for discharges from the auxiliary building are also analyzed for nickel-63, uranium-233/234/235/236/238 and plutonium-238/239/240/241 /242.

b. Continuous Releases For the continuous liquid releases of the steam generator blowdown tank and turbine building sump oily water separator, daily grab samples are collected and aliquots are proportioned for weekly, monthly, and quarterly composites.

The oily water separator weekly composite is analyzed for principal gamma emitters using a germanium detector. The steam generator blowdown tank weekly composite is analyzed for principal gamma emitters and iodine-131.

The steam generator blowdown tank monthly composite is analyzed for tritium using a liquid scintillation spectrometer and for gross alpha using an internal proportional counter.

The steam generator blowdown tank quarterly composite is analyzed for iron-55 using a liquid scintillation spectrometer and for strontium-89 and strontium-90 using an internal proportional counter following chemical separation. The results for each *of the composites are averaged over the period of the composite.

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Enclosure 1 PG&E Letter DCL-17-031 In addition, one grab sample of the steam generator blowdown tank is analyzed monthly for dissolved and entrained gases using a germanium detector. The results of this analysis are assumed to remain constant over the period of one month.

A grab sample of the steam generator blowdown is collected at least weekly and analyzed for gamma activity using a germanium detector. This analysis is used to monitor activity; however, it is not used in effluent calculations unless a significant change is detected.

Tables 4A, 4B, and 4C, "Liquid Effluents - Summation of All Releases," Item F lists the, "Volume of circulating saltwater used during release periods," in liters. Each value is calculated by multiplying the* discharge duration by the pump flow rate. The values listed in the Tables are the summation of the seawater discharge volume calculated for each individual batch and continuous discharge period.

c. Estimation of Overall Error Sources of error considered for liquid releases are:
1) calibration source error; 2) calibration counting error;
3) sampling error; 4) sample counting error; and 5) volume of waste release error.

These sources of error are independent of one another.

Therefore, the total error is calculated according to the following formula:

T ot a I error -- (a 2 1 + a 2 2 + a 2 3 + ... a 2 i) 1/2 Where cri =error associated with each component.

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Enclosure 1 PG&E Letter DCL-17-031 D. Batch Releases

1. Liquid
a. Number of qatch releases .......................... . 614
b. Total time period for batch releases ........ . 2816 hours0.0326 days <br />0.782 hours <br />0.00466 weeks <br />0.00107 months <br />
c. Maximum time period for a batch release ... 168.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />
d. Average time period for a batch release ..... . 4.59 hours6.828704e-4 days <br />0.0164 hours <br />9.755291e-5 weeks <br />2.24495e-5 months <br />
e. Minimum time period for a batch release ..... 0.13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />
f. Average saltwater flow during batch releases. 8.25E05 gallons per minute (gpm)
2. Gaseous
a. Number of batch releases .......................... . 122
b. Total time period for batch releases ............ . 604 hours0.00699 days <br />0.168 hours <br />9.986772e-4 weeks <br />2.29822e-4 months <br />
c. Maximum time period for a batch release ..... 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />
d. Average time period for a batch release ..... . 4.95 hours0.0011 days <br />0.0264 hours <br />1.570767e-4 weeks <br />3.61475e-5 months <br />
e. Minimum time period for a batch release ....*. 0.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> E. Abnormal Release (Gaseous and Liquid)

No abnormal releases occurred during 2016.

F. Inoperable Effluent Monitoring Systems Any liquid or gaseous effluent monitoring systems that became inoperable during thE? reporting period were made operable within the time limits specified _in Attachments 1 and 2.

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Enclosure 1 PG&E Letter DCL-17-031 II. Changes to Radwaste Management A. Changes to Liquid, Gaseous and Solid Radwaste Treatment Systems No major changes were made to the treatment systems during 2016.

B. Changes to the Radwaste Process Control Program There were no changes to the Radwaste Process Control Program that was implemented by these plant administrative procedures:

Enclosure 1 PG&E Letter DCL-17-031 Ill. Changes to the Offsite Dose Calculation Manual (ODCM)

A. General I

The Diablo Canyon ODCM is made up of the following procedures:

  • Nuclear Power Generation Program Directive Procedure, CY2, "Radiological Monitoring and Controls Program" (RMCP)
  • Nuclear Power Generation Interdepartmental Administrative Procedure (IDAP), CY2.ID1, "Radioactive Effluent Controls Program" (RECP)
  • IDAP RP1 .1011, "Environmental Radiological Monitoring Procedure (ERMP)
  • Diablo Canyon Power Plant Chemical Analysis Procedu're, CAP A-8, "Offsite Dose Calculation Procedure" (ODCP)

A copy of procedures that make up the ODCM are included (Attachment 1 through Attachment 4). If significant changes were made to an ODCM procedure, they are described below. Changes that were strictly editorial are not described.

B. CY2. "Radiological Monitoring and Controls Program" (RMCP)

1. Editorial changes were made to the RMCP with Revisions 7A,and 78 during 2016.
2. See Attachment 1.

\

C. CY2.ID1. "Radioactive Effluent Controls Program" (RECP)

1. Revision 13A of the RECP was issued in November, 2016.
2. Revision 14 was issued in March, 2017.
3. See Attachment 2. (Changes from Revision 13A are also shown in Attachment 2.)
4. Revision 14 added a section to add liquid effluent from the Diablo Canyon Waste Water (Sewage) Treatment Plant as an effluent pathway for radiological monitoring. *
5. Revision 14 added steps to clearly identify requirement to mark ODCM changes with revision bars in the margins.
6. Revision 14 added a statement directing actions to take when RM-3 is not operable, or if the oily water separator becomes contaminated.

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Enclosure 1 PG&E Letter DCL-17-031 D. RP1 .ID11, "Environmental Radiological Monitoring Procedure (ERMP)

1. Revision 15 of the ERMP was issued in February, 2017.
2. Revision 15 of the ERMP added evaluation of NFPA 805 calculations to step 5.2.7.
3. See Attachment 3.
4. Revision 14 of the ERMP was issued in October, 2016. (Changes from Revision 14 are also shown in Attachment 3.) -*
5. Revision 14 added Humboldt Bay ISFSI TLD(s) to scope.
6. Revision 14, Attachment 2; updated Note 2 TLD criteria to ANSl/HPS N13.37. \
7. Revision 14, Attachment 2; clarified Note 3 a-priori LLD as a process.
8. Revision 14, Attachment 4; updated some station radial directions and distances.
9. Revision 14, Attachment 6; updated onsite map.
10. Revision 14, Attachment 8; updated offsite map to GIS format.

E. CAP A-8. "Offsite Dose Calculations" Procedure (ODCP)

1. No changes to the ODCP were issued in 2016. However, Revision 38 of the ODCP was issued in April 2017. The information in Revision 38 was used for 2016 dose calculations, so it has been included with this report.
2. The dose receptor information in Attachment 2 of Revision 38 was revised to reflect the 2016 DCPP Land Use Census and updated 5-year averages for atmospheric dispersion and deposition factors.
3. See Attachment 4.

IV; Land Use Census The 2016. DCPP Land Use Census is included as Attachment 7.

V. Gaseous and Liquid Effluent Release Report Tables 1 through 3 describe 2016 releases of gaseous effluents.

Tables 4 through 6 describe 2016 releases of liquid effluents.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 1A GASEOUS EFFLUENTS -SUMMATION OF ALL RELEASES First Second Est.Total

.Units Quarter Quarter Error%

A Fission and activation gases

1. Total release Ci 1.76E-2 7.77E-2 24%

I

2. Average releas,e rate for period µCi/sec 2.2:4E-3 9.89E-3
3. Percent of technical specification limit  % 2.61E-5 1.17E-4
8. Iodines
1. Total iodine-131 Ci MDA MDA 24%

I

2. Average release rate for period µCi/sec MDA MDA
3. Percent of technical specification limit  % MDA MDA C. Particulates
1. Particulates with half-lives >8 days Ci MDA 1.13E-4 24%

I

2. Average release rate for period µCi/sec MDA 1.44E-5
3. Percent of technical specification limit  % MDA 8.79E-6 I
4. Gross alpha radioactivity Ci 9.88E-8 6.49E-8 D. Tritium
1. Total release Ci 1.44E+1 2.36E+1 13%

I

2. Average release rate for period µCi/sec 1.83E+O 3.00E+O
3. Percent of technical specification limit  % . 5.38E-6 8.82E-6 MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 18 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES Third Fourth Est.Total Units Quarter Quarter Error%

A. Fission and activation gases

1. Total release Ci 1.85E-2 4.64E-2 24%

I

2. Average release rate for period µCi/sec 2.33E-3 5.84E-3
3. Percent of technical specification limit  % 2.85E-5 7.12E-5 B. Iodines
1. Total iodine-131 Ci MDA MDA 24%

I

2. Average release rate for period µCi/sec MDA MDA
3. Percent of technical specification limit  % MDA MDA C. Particulates
1. Particulates with half-lives >8 days Ci MDA MDA 24%

I

2. Average release rate for period µCi/sec MDA MDA
3. Percent of technical specification limit  % MDA MDA
4. Gross alpha radioactivity Ci MDA 3.52E-7 D. Tritium
1. Total release Ci 1.58E+1 1.99E+1 13%

I

2. Average release.rate for period µCi/sec 1.99E+O 2.51E+O
3. Percent of technical specification limit  % 5.86E-6 , 7.38E-6 MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 1C GASEOUS EFFLUENTS -SUMMATION OF ALL RELEASES Units Annual Total A. Fission and activation gases

1. Total release Ci 1.60E-1
2. Average release rate for period µCi/sec 5.07E-3
3. Percent of technical specification limit  % 6.08E-5 B. Iodines
1. Total iodine-131 Ci MDA
2. Average release rate for period µCi/sec MDA
3. Percent of technical specification limit  % MDA C. Particulates
1. Particulates with half-lives >8 days Ci 1.13E-4
2. Average release rate for period µCi/sec 3.57E.:.6
  • )
3. Percent of technical specification limit  % 2.19E-6

(

4. Gross alpha radioactivity Ci 5.16E-7 D. Tritium
1. Total release Ci 7.37E+1
2. Average release rate for period µCi/sec 2.33E+O
3. Percent of technical specification limit  % 6.86E-6 MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 2A GASEOUS EFFLUENTS - GROUND LEVEL RELEASES First Quarter Second Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode

1. Fission gases argon-41 Ci MDA 1.68E-2 MDA 7.56E-2 krypton-85 Ci MDA MDA MDA 1.60E-4 krypton-85m Ci MDA MDA MDA MDA krypton-87 Ci MDA MDA MDA MDA krypton-88 Ci MDA MDA MDA MDA xenon-131m Ci MDA MDA MDA MDA xenon-133 Ci MDA 8.09E-4 MDA 1.93E-3 xenon-133m Ci MDA MDA MDA MDA xenon-135 Ci MDA MDA MDA MDA xenon-135m Ci MDA MDA MDA MDA xenon-138 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 1.76E-2 MDA 7.77E-2
2. Iodines iodine-131 Ci MDA MDA iodine-133 Ci MDA MDA iodine-135 Ci MDA MDA TOTAL FOR PERIOD Ci MDA MDA MDA:::: Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 2A (Continued)

GASEOUS EFFLUENTS - GROUND LEVEL RELEASES Continuous Mode Nuclides Released Units First Quarter I Second Quarter

3. Particulates barium-140 Ci MDA MDA cesium-134 Ci MDA MDA cesium-137 Ci MDA MDA cerium-141 Ci MDA MDA cerium-144 Ci MDA MDA chromium-51 Ci MDA 6.47E-5 cobalt-57 Ci MDA MDA cobalt-58 Ci MDA 3.23E-5 cobalt-60 Ci MDA 1.60E-5 iron-59 Ci MDA MDA lanthanum-140 Ci MDA MDA manganese-54 Ci MDA MDA molybdenum-99 .Ci MDA MDA ruthenium-103 Ci MDA MDA strontium-89 Ci MDA MDA strontium-90 Ci MDA MDA zinc-65 Ci MDA MDA zirconium-95 Ci MDA MDA TOTAL FOR PERIOD Ci MDA 1.13E-4

=

MDA Less than the "a posteriori" minir:num detectable activity (microcuries per unit mass or volume).

This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 28 GASEOUS EFFLUENTS - GROUND LEVEL RELEASES Third Quarter Fourth Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode

1. Fission gases argon-41 Ci MDA 1.85E-2 MDA 4.64E-2 krypton-85 Ci MDA MDA MDA MDA krypton-85m Ci MDA MDA MDA MDA krypton-87 Ci MDA MDA MDA MDA krypton-88 Ci MDA MDA MDA MDA xenon-131m Ci MDA MDA MDA, MDA xenon-133 Ci MDA MDA MDA MDA xenon-133m Ci MDA MDA MDA MDA xenon-135 Ci MDA MDA MDA MDA xenon-135m Ci MDA MDA MDA MDA xenon-138 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 1.85E-2 MDA 4.64E-2
2. Iodines iodine-131 Ci MDA MDA iodine-133 Ci MDA MDA iodine-135 Ci MDA MDA TOTAL FOR PERIOD Ci* MDA MDA MDA::: Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.
  • 18

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 28 (Continued)

GASEOUS EFFLUENTS-GROUND LEVEL RELEASES Continuous Mode Nuc!ides Released Units Third Quarter Fourth Quarter

3. Particulates barium-140 Ci MDA MDA cesium-134 Ci MDA MDA cesium-137 Ci MDA MDA cerium-141 Ci MDA MDA cerium-144 Ci MDA MDA chromium-51 Ci MDA MDA cobalt-57 Ci MDA MDA cobalt-58 Ci MDA MDA cobalt-60 Ci MDA MDA iron-59 Ci MDA MDA lanthanum-140 Ci MDA MDA manganese-54 Ci MDA MDA molybdenum-99 Ci MDA MDA ruthenium-103 Ci MDA MDA strontium-89 Ci MDA MDA strontium-90 Ci MDA MDA zinc-65 Ci MDA MDA zirconium-95 Ci MDA MDA TOTAL FOR PERIOD Ci MDA MDA

=

MDA Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume).

This note applies to all tables.

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Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 3 GASEOUS EFFLUENTS - LOWER LIMITS OF DETECTION Batch Mode Nuclide Units Continuous Mode Containment Purge Gas Decay Tank

1. Fission gases argon-41 µCi/ml 3.81E-8 3.81 E-8 3.81 E-8 krypton-85 µCi/ml 1.70E-6 1.70E-6 1.70E-6 krypton-85m µCi/ml 7.26E-9 7.26E-9 7.26E-9 krypton-87 µCi/ml 3.91E-8 3.91 E-8 3.91 E-8 krypton-88 µCi/ml 2.72E-8 2.72E-8 2.72E-8 xenon-131m µCi/ml 1.96E-7 1.96E-7 1.96E-7

. xenon-133 µCi/ml 1.67E-8 1.67E-8 1.67E-8 xenon-133m µCi/ml 3.22E-8 3.22E-8 3.22E-8 xenon-135 µCi/ml 4.97E-9 4.97E-9 4.97E-9 xenon-135m µCi/ml 1.76E-6 1.76E-6 1.76E-6 xenon-138 µCi/ml 6.91 E-6 6.91E-6 6.91E-6

2. Tritium lhydrogen-3 µCi/ml 4.56E-9 4.56E-9 N/A
3. Iodines iodine-131 µCi/ml 5.24E-13 NIA iodine-133 µCi/ml 1.75E-12 N/A iodine-135 µCi/ml 7.79E-11 NIA 20

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 3 (Continued)

GASEOUS EFFLUENTS -: LOWER LIMITS OF DETECTION

!Nuclide Units Continuous Mode

4. Particulates barium-140 µCi/ml 2.20E-12 cesium-134 µCi/ml 3.42E-13 cesium-137 µCi/ml 6.43E-13 cerium-141 µCi/ml 4.16E-13 cerium-144 µCi/ml 1.71 E-12 chromium-51 µCi/ml 2.92E-12 cobalt-57 µCi/ml 2.73E~13 cobalt-58 µCi/ml 5.01 E-13 cobalt-60 µCi/ml 4.40E-13 iron-59 µCi/ml 5.29E-13 lanthanum-140 µCi/ml 1.42E-12 manganese-54 µCi/ml 5.21E-13 molybdenum-99 µCi/ml 3.15E-13 ruthenium-103 µCi/ml 4.92E-13 strontium-89 µCi/ml 4.30E-16 strontium-90 µCi/ml 2.25E-16 zinc-65 µCi/ml 1.35E-12 zirconium-95 µCi/ml 1.05E-12 gross alpha µCi/ml 2.62E-15 21

Enclosure 1 PG&E Letter DCL-17-031

A Fission and activation products

1. Total release (not including tritium, gases, alpha) Ci 9.95E-3 1.17E-2 24%
2. Average diluted concentration during period µCi/ml 1.16E-11 1.66E-11
3. Percent of applicable limit  % 1.16E-4 1.21E-4 B. Tritium
1. Total release Ci 4.74E+2 5.00E+2 13%
2. Average diluted concentration during period µCi/ml 5.53E-7 7.06E-7
3. Percent of applicable limit  % 5.53E-2 7.06E-2 C. Dissolved and entrained gasses
1. Total release Ci 4.44E-4 1.30E-3 24%
2. Average diluted concentration during period µCi/ml 5.19E-13 1.84E-12
3. Percent of applicable limit  % 2.59E-7 9.21E-7 D. Gross Alpha
1. Total release I Ci MDA MDA 61%

E. Volume of waste release (prior to dilution) liters 8.31E+7 7.99E+7 5%

Volume of circulating saltwater used during release F. liters B.56E+11 7.08E+11 7%

periods ,

=

MDA Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

22

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 48 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES Third Fourth Est.Total Units Quarter Quarter Error%

A. Fission and activation products

1. Total release (not including tritium, gases, alpha) Ci 4.51E-3 4.40E-3 24%

I

2. Average diluted concentration during period µCi/ml 5.21E-12 5.15E-12
3. Percent of applicable limit  % 3.67E-5 6.31E-5 B. Tritium
1. Total release Ci 1.07E+2 2.97E+2 13%

I

2. Average diluted concentration during period µCi/ml 1.23E-7 3.47E-7
3. Percent of applicable limit  % 1.23E-2 3.47E-2 C. Dissolved and entrained gasses
1. Total release Ci 1.67E-5 3.29E-6 24%

I

2. Average diluted concentration during period µCi/ml 1.93E-14 3.85E-15
3. Percent of applicable limit  % 9.65E-9 1.93E-9 D. Gross Alpha
1. Total release Ci 1* MDA MDA 61%

E. Volume of waste release (prior to dilution) liters 7.94E+7 8.20E+7 5%

Volume of circulating saltwater used during F. release periods liters 8.66E+11 8.54E+11 7%

MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

23

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 4C LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES Units Annual Total A. Fission and activation products

1. Total release (not including tritium, gases, alpha) Ci 3.06E-2
2. Average diluted concentration during period µCi/ml 9.19E-12
3. Percent of applicable limit  % 8.12E-5
8. Tritium

-- 1.38E+3

1. Total release Ci
2. Average diluted concentration during period µCi/ml 4.13E-7
3. Percent of applicable limit  % 4.13E-2 C. Dissolved and entrained gasses
1. Total release Ci 1.77E-3
2. Average diluted concentration during period µCi/ml 5.31E-13
3. Percent of applicable limit  % 2.66E-7 D. Gross Alpha
1. Total release Ci MDA E. Volume of waste release (prior to dilution) liters 3.24E+8 Volume of circulating saltwater used during F. liters 3.33E+12 release periods MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume).

This note applies to all tables.

24

Enclosure 1 PG&E Letter DCL-17-031

25

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 5A (CONTINUED}*

LIQUID EFFLUENTS - NUCLIDES RELEASED First Quarter Second Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode manganese-54 Ci MDA 5.33E-5 MDA 5.91 E-5 manganese-56 Ci MDA MDA MDA MDA molybdenum-99 Ci MDA 3.56E-7 MDA MDA nickel-63 Ci MDA ..

4.14E-3 MDA 3.76E-3 niobium-95 Ci MDA 4.40E-5 MDA 1.19E-4 neodymium-147 Ci MDA MDA MDA MDA plutonium-238 Ci MDA MDA MDA MDA plutonium-239/240 Ci MDA MDA MDA MDA plutonium-241 Ci MDA MDA MDA MDA plutohium-242 Ci MDA MDA MDA MDA ruthenium-103 Ci MDA MDA MDA MDA silver-11 Om Ci MDA MDA MDA 3.92E-6 sodium-24 Ci MDA MDA MDA MDA strontium-89 Ci MDA MDA MDA MDA strontium-90 Ci MDA MDA MDA MDA strontium-91 Ci MDA MDA MDA MDA strontium-92 Ci MDA MDA MDA MDA tellurium-129m Ci MDA MDA MDA MDA MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

26

-1'

\

Enclosure 1

. PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE SA (CONTINUED)

LIQUID EFFLUENTS - NUCLIDES RELEASED First Quarter Second Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode tellurium-132 Ci MDA MDA MDA MDA tin-113 Ci MDA MDA MDA MDA tin-117m Ci MDA MDA MDA MDA tungsten-187 Ci MDA MDA MDA MDA uranium-233/234 Ci MDA MDA MDA MDA uranium-235/236 Ci MDA MDA MDA MDA uranium-238 Ci MDA MDA MDA MDA zinc-65 Ci MDA 8.40E-6 MDA 1.62E-6 zirconium-95 Ci MDA 1.22E-5 MDA 1.98E-5 iodine-131 Ci MDA MDA MDA 9.92E-8 iodine-132 Ci MDA MDA MDA MDA iodine-133 Ci MDA MDA MDA MDA iodine-135 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 9.95E-3 MDA 1.17E~2 DISSOLVED AND ENTRAINED GASES xenon-133 Ci MDA 4.44E-4 MDA 1.30E-3 xenon-133m Ci MDA MDA MDA MDA xenon-135 Ci MDA MDA MDA 9.39E-6 krypton-85 Ci MDA MDA MDA MDA krypton-88 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 4.44E-4 MDA 1.30E-3 MDA =Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

27

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 58 LIQUID EFFLUENTS - NUCLIDES RELEASED Third Quarter Fourth Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode antimony-122 Ci MDA MDA MDA MDA antimony-124 Ci MDA MDA MDA MDA antimony-125 Ci MDA 4.26E-5 MDA 1.07E-4 barium-140 Ci MDA MDA MDA MDA beryllium-7 Ci MDA MDA MDA MDA bromine-82 Ci MDA MDA MDA MDA cerium-141 Ci MDA MDA MDA MDA cerium-143 Ci MDA MDA MDA MDA cerium-144 Ci MDA MDA MDA MDA cesium-134 Ci MDA MDA MDA MDA cesium-136 Ci MDA MDA MDA MDA cesium-137 Ci MDA MDA MDA 1.56E-6 chromium-51 Ci MDA 9.59E-5 MDA MDA cobalt~57 Ci MDA MDA MDA MDA cobalt-58 Ci MDA 5.33E-4 MDA 3.99E-4 cobalt-60 Ci MDA 7.73E-4 MDA 1.47E-3 iron-55 Ci MDA MDA MDA 6.88E-4 iron-59 Ci MDA MDA MDA MDA lanthanum-140 Ci MDA MDA MDA MDA

=

MDA Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

28

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 58 (CONTINUED}

LIQUID EFFLUENTS -NUCLIDES RELEASED Third Quarter Fourth Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode manganese-54 Ci MDA 2.09E-5 MDA 2.64E-5 manganese-56 Ci MDA MDA MDA MDA molybdenum-99 Ci MDA MDA MDA MDA nickel-63 Ci MDA 3.03E-3 MDA 1.71E-3 niobium-95 Ci MDA 1.41E-5 MDA 2.89E-7 neodymium-147 Ci MDA MDA MDA MDA plutonium-238 Ci MDA MDA MDA MDA plutonium-239/240 Ci MDA MDA MDA MDA plutonium-241 Ci MDA MDA MDA MDA plutonium-242 Ci MDA MDA MDA MDA ruthenium-103 Ci MDA MDA MDA MDA silver-11 Om Ci MDA MDA MDA MDA sodium-24 Ci MDA MDA MDA MDA strontium-89 Ci MDA MDA MDA MDA strontium-90 Ci MDA MDA MDA MDA strontium-91 Ci MDA MDA MDA MDA strontium-92 Ci MDA MDA MDA MDA tellurium-129m Ci MDA MDA MDA MDA MDA == Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

29

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 58 (CONTINUED)

LIQUID EFFLUENTS - NUCLIDES RELEASED Third Quarter Fourth Quarter Continuous Continuous Nuclides Released Units Batch Mode Batch Mode Mode Mode te!lurium-132 Ci MDA MDA MDA MDA tin-113 Ci MDA MDA MDA MDA tin-117m Ci MDA MDA MDA MDA tungsten-187 Ci MDA MDA MDA MDA uranium-233/234 Ci MDA MDA MDA MDA uranium-235/236 Ci MDA MDA MDA MDA uranium-238 Ci MDA MDA MDA MDA zinc-65 Ci MDA 5.79E-7 MDA MDA zirconium-95 Ci MDA MDA MDA MDA iodine-131 Ci MDA MDA MDA MDA iodine-132 Ci MDA MDAI MDA MDA iodine-133 Ci MDA MDA MDA MDA iodine-135 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 4.51E-3 MDA 4.40E-3 DISSOLVED AND ENTRAINED GASES xenon-133 Ci MDA 1.67E-5 MDA 3.29E-6 xenon-133m Ci MDA MDA MDA MDA xenon-135 Ci MDA MDA MDA MDA krypton-85 Ci MDA MDA MDA MDA krypton-88 Ci MDA MDA MDA MDA TOTAL FOR PERIOD Ci MDA 1.67E-5 MDA 3.29E-6 MDA = Less than the "a posteriori" minimum detectable activity (microcuries per unit mass or volume). This note applies to all tables.

30

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 6 LIQUID EFFLUENTS - LOWER LIMITS OF DETECTION Nuclide Units LLD antimony-122 µCi/ml 1.16E-7 antimony-124 µCi/ml 6.95E-8 antimony-125 µCi/ml 1.67E-7 barium-140 µCi/ml 2.64E-7 beryllium-? µCi/ml 6.23E-7 bromine-82 µCi/ml 1.17E-7 cerium-141 µCi/ml 8.98E-8 cerium-143 µCi/ml 2.42E-7 cerium-144 µCi/ml 3.89E-7 cesium-134 µCi/ml 5.50E-8

~ ..

cesium-136 * µCi/ml 7.44E-7 cesium-137 µCi/ml 1.01 E-7 chromium-51 µCi/ml 4.64E-7 cobalt-57 µCi/ml 3.02E-8 cobalt-58 µCi/ml 1.04E-7 cobalt-60 µCi/ml 1.23E-7 iron-55 µCi/ml 8.68E-7 iron-59 µCi/ml 1.66E-7 lanthanum-140 µCi/ml I 7.44E-8 manganese~54 µCi/ml 1.05E-7 manganese-56 µCi/ml .4.91 E-5 molybdenum-99 µCi/ml 5.40E-8 nickel-63 µCi/ml 1.19E-7 niobium-95 µCi/ml 8.63E-8 31

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 6 (CONTINU~D)

LIQUID EFFLUENTS ~ LOWER LIMITS OF DETECTION Nuclide Units LLD neodymium-147 µCi/ml 2.07E-7 plutonium-238 µCi/ml 4.61E-8 plutonium-239/240 µCi/ml 3.74E-8 plutonium-241 µCi/ml 4.90E-8 plutonium-242 µCi/ml 4.74E-8 ruthenium-103 µCi/ml 7.36E-8 silver-110m µCi/ml 6.12E-8 sodium-24 µCi/ml 2.06E-7 strontium-89 µCi/ml 4.55E-8.

strontium-90 µCi/ml 2.37E-8 i strontium-91 µCi/ml 4.81E-7 strontium-92 µCi/ml 2.24E-5 tellurium-129m µCi/ml 2.70E-6 tellurium-132 µCi/ml 8.15E-8 tin-113 µCi/ml 8.32E-8 tin-117m µCi/ml 5.66E-8 tungsten-187 µCi/ml 3.27E-7 uranium-233/234 µCi/ml 1.51E-8 uranium-235/236 µCi/ml 1.45E-8 uranium-238 µCi/ml 9.38E-9 zinc-65 µCi/ml 2.33E-7 zirconium-95 µCi/ml 1.97E-7 gross alpha µCi/ml 6.80E-8 hydrogen-3 µCi/ml 4.51 E-6 32

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 6 (CONTINUED)

LIQUID EFFLUENTS - LOWER LIMITS OF DETECTION Nuclide Units LLD iodJne-131 µCi/ml 5.76E-8 iodine-132 µCi/ml 4.87E-5 iodine-133 µCi/ml 1.56E-7 iodine-135 µCi/ml 3.59E-6 xenon-133 µCi/ml 1.82E-7 xenon-133m µCi/ml 4.90E-7 xenon-135 µCi/ml 2.95E-7 krypton-85 µCi/ml 1.57E-5 krypton-88 µCi/ml 4.75E-5 33

Enclosure 1 PG&E Letter DCL-17-031 VI. Solid Radwaste Shipments A. Solid Waste and Irradiated Fuel Shipment Shipped Off-site for Burial or Disposal (Not irradiated fuel)

Est. Total Error,

1. Type of Waste Unit 12 Month Period  %
a. Spent Resins, Filter Sludges, m0 3.82 E+OO 9.0 Evaporator Bottoms, etc. Ci 5.68 E+OO
b. Dry Compressible Waste, m0 2.28 E+01 9.0 Contaminated Equipment, etc. Ci 4.74E-01
c. Irradiated Components, m::s N/A (none N/A Control Rods, etc. Ci shipped) m::s N/A (no'ne
d. Other N/A Ci shipped)
2. Estimate of Major Nuclide Composition (by type of waste)

H-3 38.2  %

a. Ni-63 22.7  %

Fe-55 20.9  %

Co-60 13.3  %

C-14 1.94  %

Sb-125 0.72  %

Mn-54 0.71  %

Co-58 0.61  %

b. Fe-55 26.9  %

Cr-51 20.9  %

Co-60 17.4  %

Co-58 12.8  %

Ni-63 10.7  %

Nb-95 4.34  %

Zr-95 2.63  %

Sb-125 1.23  %

Mn-54 1.02  %

Zn-65 0.72  %

C-14 0.56  %

Fe-59 0.29  %

34

Enclosure 1 PG&E Letter DCL-17-031 A. Solid Waste and Irradiated Fuel Shipment (continued)

3. Solid Waste Disposition Mode of Number of Shipments Transportation Destination Babcock 2 Truck Oakridae, TN Energy Solutions 1 Truck Erwin, TX Energy Solutions 2 Truck Oakridae, TN Omega 3 Truck Oakridge, TN Toxco MMC 1 Truck Oakridge, TN
4. Supplemental Information Required by former Technical Specification (TS) 6.9.1.6 10 CFR 61 Solidification Type of Number of Waste A ent Container Containers Class None IP1 1 NA None IP1 11 NA B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination None N/A N/A 35

Enclosure 1 PG&E Letter DCL-17-031 VII. Radiation Doses from Radioactive Effluents A. Radiation Doses from Radioactive Liquid Effluents

1. General Information The radiation dose contributions to the total body and each individual organ due to releases of radioactive liquid effluents for the maximum exposed adult member of the public have been calculated in accordance with the methodology stated in the ODCP. Dose contributions listed in Table 7 show conformance to Attachment 4 of the RECP.

B. Radiation Doses from Radioactive Gaseous Effluents

1. General Information The radiatio'n dose to a hypothetical receptor at the site boundary from radioactive gaseous effluents due to plant operation have been calculated as described in the ODCP. The dose contribution related to operation of each unit has been calculated separately (Table BA for Unit 1 and Table BB for Unit 2). The latest five-year historical average meteorology conditions were used in these dose calculations.

In addition, doses to the most-affected individuals (critical receptors) identified in the 2016 DCPP Land Use Census were calculated. Doses from radioiodines, tritium, and particulates released in gaseous effluents with half-lives greater than eight days were determined in accordance with the methodology in the ODCP.

These calculations were performed using the methods described in NUREG-0133, "Preparation of Radiological Effluent Technical Specifications for .

Nuclear Power Plants." Maximum doses for age groups, affected organs, and geographic locations for the report period show conformance to Attachments 6, 7, and B of the RECP.

36

Enclosure 1 PG&E Letter DCL-17-031

2. Gaseous and Airborne Releases from Laboratory Exhausts The radiation dose to the nearest offsite inhalation receptor (NW sector at 3.6 miles) from two locations other than the plant vent were also calculated for 2016. The source locations were the exhaust vent from the primary chemistry lab and the exhaust vent from the post-accident sampling system.

The results are conservatively based on laboratory measurements of the isotopic source terms and calculation of the respective discharge flows.

The respective inhalation doses in 2016 to the nearest offsite inhalation receptor from these two sources were:

Inhalation Total Beta Total Gamma Air Receptor Exhaust Vent Source Air Dose Dose (mrad/year)

Location (mrad/vear)

NW-5.76 km Chemistry Lab 1.70 E-07 6.10 E-08 NW-5.76 km Post-accident Lab 1.52 E-08 5.45E-09

3. Atmospheric Release of Carbon-14 Due to Plant Operation
a. In June, 2009, the NRC revised its guidance in RG 1.21, "Measuring, Evaluating and Reporting Radioactivity In Solid Wastes And Releases Of Radioactive Materials In Liquid And Gaseous Effluents From Light-Water-Cooled Nuclear Power Plants," Revision 2. This document stated that analytical methods for determining carbon-14 (C-14) had improved, and that coincidentally, the radioactive effluents from commercial power plants had decreased to the point that C-14 is likely to be a principle radionuclide in gaseous effluents. Also, because the dose contribution of C-14 from liquid radioactive waste is much less than that contributed by gaseous radioactive waste, evaluation of C-14 in liquid radioactive waste was not required. However, the NRC stated that licensees should evaluate whether C-14 is a principal radionuclide for gaseous releases from their facility.
b. In order to aid the nuclear power industry in estimating C-14 production, the Electric Power Research Institute (EPRI) developed 2010 Technical Report 1021106, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents," December 2010. DCPP uses the methods in this guidance to estimate the quantity of C-14 that is produced and released during the year.

37

Enclosure 1 PG&E Letter DCL-17-031

c. Calculated C-14 production during 2016, discharge parameters, and resulting dose to the nearest critical receptors from inhalation and ingestion of vegetation were calculated as listed in the table below. (C-14 activities and related doses are not included in Tables 1, 2, 8, 10 and 11 ).

U1=1.012 2016 Unit capacity factors U2 = 0.912 Fractional release of C-14 produced 0.98 Organic = 0.70 Fraction of C-14 chemical form assumed lnorqanic = 0.30 U1 = 1.1.7 Curies C-14 released to atmosphere U2 = 12.0 Dose to receptor in E sector at 7.43 km from 2.22 E-3 mrem (total body)

C-14 inhalation and ingestion of C-14 in veqetation due to plant operation 1.12 E-2 mrem (bone)

Dose to receptor in NW sector at 5.76 km from 7.4 E-4 mrem (total body)

C-14 inhalation due to plant operation 3.94 E-3 mrem (bone)

4. Radiation Dose from Radioactive Gaseous Effluents to Individuals Due to Consumption of Grazing Animals on Property Surrounding the Site.

The 2016 DCPP Land Use Census identified that during the year, residents of the*

area around the plant took cattle and deer for personal consumption. As part of the DCPP Environmental Radiological Monitoring Program (ERMP), samples of cow meat were analyzed for radioactivity. Results of those analyses are ava_ilable in the 2016 Annual Radiological Environmental Operating Report.

In addition to field measurements of meat samples, doses to the respective offsite ingestion receptors from airborne tritium, particulates, and C-14 during 2016 due to plant operation and their consumption of meat were calculated.

Dose (mrem, GI-LU, Dose (mrem, total body, Dose (mrem, bone, Receptor Meat from airborne tritium and from airborne from airborne C-14 Location Source particulates ingested C-14 ingested through ingested through meat) throuqh meat) meat)

NNE deer 2.93 E-5 5.80 E-5 2.90 E-4 5.19 km NNW '

cow 5.64 E-4 1.33 E-3 6.07 E-3 2.42 km C. Evaluation for 40 CFR 190 The release of radioactivity in liquid and gaseous effluents resulted in doses that are small percentages of the TS limits as shown in Tables 9, 1 OA, and 1OB. In addition, the direct radiation from various sources, including the independent spent fuel storage installation (ISFSI), resulted in dose that was a fraction of 40 CFR 190 limits. (Refer to D.3 below.) The combined doses reported for 2016 from liquid and gaseous effluents and direct radiation show that DCPP complied with all 40 CFR 190 limits.

38

Enclosure 1 PG&E Letter DCL-17-031 D. Radiation Doses to Members of the Public

1. Liquid Effluents The radiation dose to members of the public in 2016 near the site due to the release of radioactive liquid effluents has been evaluated as negligible. The factors evaluated were discharge piping location and the source term that was present during the reporting period. Specifically, locations of the discharge piping for liquid radwaste are mostly embedded in concrete, in remot~ or inaccessible are,as, and/or underground. In addition, the quantity of radioactivity released through liquid radwaste piping during the reporting period was very small. (Refer to Tables 4A-4C.) *
2. Gaseous Effluents The radiation dose to members of the public in 2016 near the site due to the release of radioactive gaseous effluents has been evaluated as negligible.

The factors evaluated were the distance of the nearest actual receptor for gaseous effluents and the source term for the 2016 reporting period.

Specifically the nearest full-time resident is 5.76 km from the site. (Refer to Tables BA-BB.)

3. Direct Radiation (line-of-sight plus sky-shine)

Direct radiation to a member of .the public has been evaluated per 40 CFR 190 to ensure members of the public did not receive more than 25 mrem (

per year to the whole body. The 2016 Land Use Census did not identify any members of the public that live in a location that can receive direct radiation from the DCPP site.

Instead of calculating dose to an hypothetical member of the public at the site boundary, direct radiation for 2016 was calculated for the operators of the makeup water treatment plant located near the site boundary and approximately 200 meters from the both the ISFSI and the centerline between the Unit 1 and Unit 2 plant vent exhausts. The makeup water

. operators have been estimated to spend a maxirfium of 2920 hours0.0338 days <br />0.811 hours <br />0.00483 weeks <br />0.00111 months <br /> a year at their work location. 1...

The makeup water plant is unique at Diablo Canyon because it is near the northern site boundary and receives direct radiation from multiple plant sources. The makeup water plant operators work within the owner-controlled area, and outside the protected area, so they are not evaluated to be "members of the public" as defined in 40 CFR Part 190. Because of these factors, their dose is considered bounding - a maximum greater than the dose that could be received by any real "member of the public."

The 2016 dose calculated for the makeup water operator as a receptor was 5.1 millirem; a fraction of the applicable 25 millirem limit.

39

Enclosure 1 PG&E Letter DCL-17-031 Sources of onsite direct radiation include the following:

  • Radioactive waste containers outside of plant buildings
  • Contaminated tools and equipment inside a dedicated storage building (Warehouse A).

Four Unit 2 old steam generators since 2008.

Four Unit 1 old steam generators since 2009.

One Unit 2 old reactor head since 2009.

One Unit 1 old reactor head since 2010.

DCPP ISFSI Cask Loading Year Casks Loaded 2009 8 2010 8 2011 0 2012 7 2013 6 2014 0 2015 8 2016 12 40

Enclosure 1 PG&E Letter DCL-17-031 E. Sub-surface Water Radioactive Contamination

('

Recent events at other nuclear plant sites have involved identification of equipment leaks containing low levels of radioactivity. In some cases, these leaks have resulted in radioactive contamination of ground water and storm water that may leave the plant sites. Any plant equipment leaks that could result in such an event at DCPP are documented in the corrective action program (CAP). Analysis of samples of sub-surface water at DCPP has indicated the only radioactive isotope currently present is tritium. At this time, there is no evidence to point to plant system leakage as the source for this tritium.

Sampling and analysis of Auxiliary Building roof drains, Auxiliary Building drywell, and the containment structure observation wells have identified detectable tritium activity. This tritium has been evaluated as most likely coming from the rain wash-out of gaseous tritium exiting the plant vent system. This tritium is being accounted for in the plant vent release, and rain water tritium is being accounted for per plant approved procedures. These practices will continue until such time that new industry guidance is provided to account for this pathway in a different manner.

Refer to the 2016 Annual Radiological Environmental Operating Report for the data that has been evaluated to date for the sampling locations.

F. NEI 07-07 Voluntary Communication for Sub-surface Water Section 2, "Communication," Objective 2.4, "Annual Reporting," of NE.I 07-07 lists the acceptance criteria for annual reporting of "ground water" information, as follows:

1. Acceptance Criterion 2.4.b.i:

Reporting of on-site ground water sample results that are taken in support of the Groundwater Protection Initiative (GPI), but are not part of the ERMP program are reported in the ARERR required by 10 CFR 50.36a(a)(2).

  • For 2016, there were no on-site ground water results for samples taken in support of the GPI that are not part of the REMP program.
2. Acceptance Criterion 2.4.b.ii:

Reporting of on-site ground I

water "sample results for those long-term monitoring sample points that are not included in ERMP are reported in the ARERR."

  • For 2016, there were no on-site ground water sample results for long term monitoring sample points not included in the ERMP.
3. Acceptance Criterion 2.4.c.i
  • Voluntary communications of the description of all spills or leaks, made per Objective 2.2 acceptance criterion, shall be included in the ARERR.
  • For 2016, no voluntary communications were made per Objective 2.2.
4. Acceptance Criterion 2.4.c.ii:

Voluntary communications of all on-site or off-site ground water sample results that exceeded the ERMP reporting thresholds as described in the ODCM that were communicated per Objective 2.2 acceptance criterion b shall be included in the ARERR.

  • For 2016, no voluntary communications were made per Objective 2.2.

41

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 7 RADIATION DOSE DUE TO THE RELEASE OF RADIOACTIVE LIQUID EFFLUENTS millirem First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Total Body 5.?0E-05 9.49E-05 1.33E-05 3.19E-05 1.97E-04 Bone 1.55E-04 2.43E-04 7.68E-05 6.12E-05 5.36E-04 Liver 8.52E-05 1.55E-04

  • 1.51 E-05 4.13E-05 2.97E-04 Thyroid 3.89E-05 6.01E-05 8.76E-06 2.44E-05 1.32E-04 Kidney 4.04E-05 6.05E-05 8.88E-06 2.44E-05 1.34E-04 Lung 5.79E-05 9.96E-05 8.76E-06 3.13E-05 1.98E-04 G.I. LLI 1.41 E-04 3.75E-04 3.67E-05 5.94E-05 6.12E-04 42

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE SA RADIATION DOSE DUE TO THE RELEASE OF RADIOACTIVE GASEOUS EFFLUENTS (UNIT 1)

First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose Site Boundary Noble Gas Gamma Air Dose mrad 1.69E-5 2.00E-5 1.76E-5 7.54E-5 1.30E-4 Beta Air Dose mrad 5.95E-6 7.06E-6 6.22E-6 2.66E-5 4.58E-5 First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose Nearest Residence - NW mrem 4.40E-5 3.27E-5 3.18E-5 4.66E-5 1.55E-4 First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose Nearest Ve etable Garden - E mrem 3.15E-5 2.34E-5 2.28E-5 3.34E-5 1.11E-4 43

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 88 RADIATION DOSE DUE TO THE RELEASE OF RADIOACTIVE GASEOUS EFFLUENTS (UNIT 2)

First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose Site Boundary Noble Gas Gamma Air Dose mrad 1.73E-5 1.34E-4 2.01E-5 1.90E-5 1.90E-4 Beta Air Dose mrad 6.28E-6 4.77E-5 7.08E-6 6.71E-6 6.78E-5 First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose Nearest Residence - NW mrem 2.24E-5 1.02E-4 4.14E-5 4.56E-5 2.12E-4 First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Dose Dose Dose Dose Dose mrem 1.60E-5 6.36E-5 2.96E-5 3.26E-5 1.42E-4 44

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE9 PERCENT OF TECHNICAL SPECIFICATION LIMITS FOR RADIOACTIVE LIQUID Ef'.:'FLUENTS Percent First Quarter Second Quarter Third Quarter Fourth Quarter Annual Total Total Body 3.80E-03 6;32E-03 8.86E-04 2.12E-03 6.57E-03 Bone 3.09E-03 4.86E-03 1.54E-03 1.22E-03, 5.36E-03 Liver 1.70E-03 3.10E-03 3.03E-04 8.26E-04 2.97E-03 Thyroid 7.78E-04 1.20E-03 1.75E-04 4.87E-04 1.32E-03 Kidney 8.09E-04 1.21E-03 1.78E-04 4.88E-04 1.34E-03 Lung 1.16E-03 1.99E-03 1.75E-04 6.26E-04 1.98E-03 G.I. LLI 2.81E-03 7.50E-03 7.35E-04 1.19E-03 6.12E-03 45

Enclosu re 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE 10A

. PERCENT OF TECHNICAL SPECIFICATION LIMITS FOR RADIOACTIVE GASEOUS EFFLUENTS (UNIT 1)

First Quarter % Second Quarter Third Quarter % Fourth Quarter % Annual Tota 1%

of TS Limit  % of TS Limit of TS Limit of TS Limit . of TS Lim it Site Bounda Noble Gas Gamma Air Dose 3.37E-4 4.01E-4 3.53E-4 1.51 E-3 1.30E-3 Beta Air Dose 5.95E-5 7.06E-5 6.22E-5 2.66E-4 2.29E-4 First Quarter % Second Quarter Third Quarter% Fourth Quarter % Annual Tota 1%

of TS Limit  % of TS Limit of TS Limit of TS Limit

  • of TS Lim it 5.86E-4 4.36E-4 4.23E-4 6.21E-4 1.03E-3 First Quarter % Second Quarter Third Quart:er % Fourth Quarter % Annual Tota 1%

of TS Limit  % of TS Limit of TS Limit of TS Limit of TS Lim it Nearest Ve etable Garden - E 4.20E4 3.12E-4 3.03E-4 4.45E-4 7.40E-4 46

Enclosure 1 PG&E Letter DCL-17-031 DIABLO CANYON POWER PLANT ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT 2016 TABLE10B PERCENT OF TECHNICAL SPECIFICATION LIMITS FOR RADIOACTIVE GASEOUS EFFLUENTS (UNIT 2)

First Quarter % Second Quarter Third Quarter % Fourth Quarter % Annual Total %

of TS Limit  % of TS Limit of TS Limit of TS Limit of TS Limit Site Boundarv Noble Gas Gamma Air Dose 3.47E-4 2.68E-3 4.02E-4 3.80E-4 1.90E-3 Beta Air Dose 6.28E-5 4.77E-4 7.0BE-5 6.71E-5 3.39E-4 First Quarter % Second Quarter Third Quarter % Fourth Quarter % Annual Total %

of TS Limit  % of TS Limit of TS Limit of TS Limit of TS Limit 2.98E-4 1.36E-3 5.52E-4 6.07E-4 1.41 E-3 First Quarter % Second Quarter Third Quarter % Fourth Quarter % Annual Total%

of TS Limit  % of TS Limit of TS Limit of TS Limit of TS Limit Nearest Ve etable Garden - E 2.14E-4 8.48E-4 3.95E-4 4.35E-4 9.46E-4 47

Enclosure 1 PG&E Letter DCL-17-031 VIII. Meteorological Data A compact disc containing hour-by-hour wind speed, wind direction, atmospheric stability, and precipitation results for 2016 is included with this submittal.*

Compact Diskette Information 2016 PG&E Diablo Diablo Canyon Primary Non-SGI 25.1 Mb Can on Met Data Meteorolo ical Data 48 c

Attachment 1 PG&E Letter DCL-17-031 Diablo Canyon Power Plant Program Directive CY2, "Radiological Monitoring and Controls Program," Revision 78

      • ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

DIABLO CANYON POWER PLANT CY2 PROGRAM DIRECTIVE Rev. 78 Page 1of12 Radiological Monitoring and Controls Program 11/22/16 Effective Date QUALITY RELATED Table of Contents

1. PROGRAM OVERVIEW ................................................................................. 1
2. APPLICABILITY .............................................................................................. 2
3. DEFINITIONS ................................................................................................. 3
4.
  • PROGRAM OBJECTIVES AND REQUIREMENTS~ ....................................... 3
5. RESPONSIBILITIES ................................................. .-..................................... 7
6. KEY IMPLEMENTING DOCUMENTS ............................................................. 8
7. CLOSELY RELATED PROGRAMS ................................................................ 8
8. RECORDS ........................................*............................................................. 9
9. REFERENCES ..........................................................*..................................... 9
10. GRADED QA REQUIREMENTS FOR RADIOLOGICAL MONITORING AND CONTROLS PROGRAM ...................................................................... 11 1~ PROGRAM OVERVIEW 1 .1 It is the policy of nuclear generation that the release of radioactive materials to the environment be in compliance with Federal regulations and be "As Low As Reasonably Achievable" (ALARA). The overall objectives are to protect the health and safety of the public from undue radiation exposure and to minimize the amount of radioactive effluents resulting from the operation of the plant.

1.2 This PD defines the overall policies and general requirements related to the Radiological Monitoring and Controls Program (RMCP). This includes the Radiological Environmental Monitoring Program (REMP), and the Radioactive Effluent Controls Program (RECP).

CY2u3r07.DOC 1121.1307

Radiological Monitoring and Controls Program CY2 R7B Page 2of12 1.3 The scope of this PD is focused on the control of releases of radioactive material to the environment, and minimizing radiological impact on the general public. Radiation protection of plant workers and visitors within the restricted area of the plant is within the scope of RP1, "Radiation Protection."

1.4 Figure 1 illustrates the hierarchy of procedures associated with this PD. /'

Figure 1 : CY2 Hierarchy of Procedures CY2 Radiological Monitoring and Controls Program IDAPs Radioactive Effluent Control Program Environmental Radiological Monitoring Procedure DLAPs Department Specific Administrative Controls

2. APPLICABILITY This PD is applicable to all persons involved in radioactive effluent control, monitoring, and management activities. This includes all nuclear generation personnel, personnel matrixed to nuclear generation from other company organizations, personnel in other company organizations that are engaged in activities in support of nuclear generation, and contractor personnel that are working under nuclear generation supervision.

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Radiological Monitoring and Controls Program CY2 R7B Page 3of12

3. DEFINITIONS i

3.1 ALARA (acronym for "as low as reasonably achievable"): A term that means making every reasonable effort to maintain exposures to radiation as far below the dose limits of 10 CFR 20 as is practical consistent with the purpose for which the licensed activity is undertaken, taking into account the state of technology, the economics of improvements in relation to state of technology, the economics of improvements in relation to benefits to the public health and safety, and in relation to utilization of nuclear energy and licensed materials in the public interest. The specific objectives of achieving ALARA effluents are based on those described in 1oCFR50, Appendix I.*

3.2 Environmental Radiological Monitoring Procedure (ERMP): Contains a description of sample locations, types of sample locations, methods and frequency of analysis, and reporting 1 requirements.

3.3 Offsite Dose Calculation Procedure (ODCP): Contains the methodology and parameters used in the calculation of offsite doses due to radioactive gaseous and liquid effluents and in the calculation of gaseous and liquid effluent monitoring Alarm/Trip Setpoints.

3.4 Radiological Monitoring and Controls Program (RMCP): Contains the Radioactive Effluent Controls and Radiological Environmental Monitoring Programs required by Technical Specifications 5.5.1 and 5.5.4 and descriptions of the information that should be included in the Annual Radiological Environmental Operating and Annual Radioactive Effluent Release Reports required by Technical Specifications 5.6.2 and 5.6.3.

4. PROGRAM OBJECTIVES AND REQUIREMENTS 4.1 Program Objectives:

The nuclear generation radiological monitoring and controls program is established to meet the following objectives:

4.1.1 Ensure that systems, methods, and controls are established to meet applicable regulatory requirements and objectives for release of radioactive effluents.

Liquid and gaseous radioactive waste processing systems provide the means for controlling radioactive releases. It is also important to establish administrative controls with clear delineation of responsibilities to ensure that monitoring, measurement, and release activities are properly sequenced, authorized, and controlled.

4.2 Program Requirements The basic requirement for the radiological monitoring and controls program shall be to maintain radioactive releases to the unrestricted areas surriounding the plant in conformance with applicable Federal regulations and ALARA. The following sections provide additional requirements for various elements of the program.

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Radiological Monitoring and Controls Program CY2 R7B Page 4of12 4.2.1 Changes to the RMCP (including ODCP, ERMP and RECP) shall be processed in accordance with the requirements of the plant Technical Specification Section 5.5.1.

4.2.2 Radiological Environmental Monitoring Program

a. A Radiological Enyironmental Monitoring Program (REMP) shall be established and maintained to comply with the plant Technical Specification 5.5.1, Radiological Environmental Monitoring Program requirements. The program shall be provided to monitor the radiation and radionuclides in the environs of the plant, and shall address the following:
1. Monitoring, sampling, analysis, and reporting of radiation and radionuclides in the environment in accordance with the methodology and parameters in the Environmental Radiological Monitoring Procedure (ERMP),
2. A Land Use Census to ensure that changes in the use of areas at and beyond the site boundary are identified.and that modifications to the monitoring program are made if required by the results of this census, and
3. Participation in an lnterlaboratory Comparison Program to ensure that independent checks on the precision and accuracy of the measurements of radioactive materials in the environmental sample matrices are performed as part of the quality assurance program for environmental monitoring.

4.2.3 Radioactive Effluent Control Program

a. Monitoring requirements shall be established and maintained for all major and potentially significant paths for release of radioactive material during normal plant operation, including anticipated operational occurrences, to comply with Regulatory Guide 1.21, Revision 1, June 1974, requirements.
b. Procedures shall be established and maintained to define the methods and requirements for control of liquid and gaseous radioactive discharges within the limits of the plant Technical Specification Section 5.5.4. These procedures shall address the following:
1. Limitations on the operability of radioactive liquid and gaseous monitoring instrumentation including surveillance requirements and setpoint determination in accordance with methodology in the Offsite Dose Calculation Procedure, (ODCP).
2. Limitations on the concentrations of radioactive material released in liquid effluents to unrestricted areas conforming to 10 CFR Part 20, Appendix 8, Table 2, Column 2.

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Radiological Monitoring and Controls Program CY2 R7B Page 5of12

3. Monitoring, sampling, and analysis of radioactive liquid and gaseous effluents in accordance with 10 CFR 20.1302 and with the methodology and parameters in the ODCP.
4. Limitations on the annual and quarterly doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas conforming to Appendix I to 10 CFR Part 50.
5. Determination of cumulative and projected dose contributions from radioactive effluents for the current calendar quarter and current calendar year in accordance with the methodology and parameters in the ODCP at least every 31 days.
6. Limitations on the operability and use of the liquid and gaseous effluent treatment systems to ensure that the appropriate portions of these systems are used to reduce releases of radioactivity when the projected doses in a 31-day period would exceed 2 percent of the guidelines for the annual dose or dose commitment conforming to Appendix I to 10 CFR Part 50.
7. Limitations on the dose rate resulting from radioactive material released in gaseous effluents from the site to areas at or beyond the site boundary shall be limited to the following:

a) For noble gases: Less than or equal to a dose rate of 500 mrem/yr to the whole body and less than or equal to a dose rate of 3000 mrem/yr to the skin.

b) For lodine-131, for lodine-133, for tritium, and for all radionuclides in particulate form with half-lives greater than 8 days: Less than or equal to a dose rate of 1500 mrem/yr to any organ.

8. Limitations on the annual and quarterly air doses resulting from noble gases released in gaseous effluents from each unit to areas beyond the site boundary conforming to Appendix I to 10 CFR Part 50.
9. Limitations on the annual and quarterly doses to members of the public from lodine-131, lodine-133, tritium, and all radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents released from each unit to areas beyond the site boundary conforming to Appendix I to 10 CFR Part 50.
10. *Limitations on the annual dose or dose commitment to any member of the public due to releases of radioactivity and to radiation from uranium fuel cycle sources conforming to 40 CFR Part 190.
11. The provisions of SR 3.0.2 and SR 3.0:3 are applicable to the Radioactive Effluent Controls Program Surveillance Frequency.

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Radiological Monitoring and Controls Program CY2 R78 Page 6of12

c. Sampling and analysis methods associated with effluent monitoring activities shall be controlled in accordance with a department level administrative procedure that controls material and equipment used for analysis for the chemistry and radiochemistry programs.
d. Systems that are known pathways for radioactive releases shall be explicitly addressed. Periodic sampling of systems with the potential of becoming radioactively contaminated should also be addressed.
e. An onsite meteorological program shall be established and maintained in accordance with the requirements of Regulatory Guide 1.23, February 1972, to provide sufficient data for the performance of dose assessments.
f. The collection and processing of technical data required to support the Annual Radioactive Effluent Release Report and non-routine reports to the NRC to comply with the plant Technical Specification 5.6.3 shall be defined as part of this program. The processing of these reports shall be performed in accordance with Xl1, "Regulatory Interface."

4.2.4 Offsite Dose Calculation Procedures

a. Offsite Dose Calculation Procedures (ODCP) shall be established and maintained to define and control the methods for determining offsite doses.

NRC Regulatory Guide 1.109, Revision 1, October 1977, as well as its interpretation through NUREG 0133, should be used as guidance for establishing acceptable methods. These procedures shall address the following:

1. Methods for determining monitoring instrumentation alarm setpoints are addressed in accordance with a Department-Level Administrative Procedure (DLAP) under CY2.
2. Methods for determining effluent concentrations.
3. Methods for calculating doses to persons in unrestricted areas surrounding the plant from all exposure pathways.
b. Changes to the ODCP shall be processed in accordance with the requirements of Technical Specification 5.5.1.

4.2.5 Environmental Radiological Monitoring Procedure

a. An Environmental Radiological Monitoring Procedure (ERMP) shall be established and shall contain a description of sample locations, types of sample locations, methods and frequency of analysis, and reporting requirements.

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Radiological Monitoring and Controls Program CY2 R7B Page 7of12 4.2.6 Radwaste Treatment Systems

a. Radwaste treatment systems shall be provided to control the processing and release of radioactive materials in gaseous and liquid effluent in compliance with Technical Specification requirements. The design of these systems shall be controlled in accordance with)CF3, "Design Control," and the requirements of Regulatory Guide 1.143, Revision 1, October 1979. 11/161
b. Approval of changes to the radwaste treatment systems shall be processed iri accordance with the requirements of CF4, "Modification Control."

4.2.7 Quality Assurance Requirements In addition to requirements specified in earlier sections and those requirements utilizing procedures in Section 6.2, the control program shall be subject to the quality assurance requirements specified in CY1, "Chemistry/Radiochemistry."

4.3 Support by the Company Departments Departments outside of nuclear generation may be called upon to support nuclear generation activities associated with the Radioactive Monitoring Controls Program. The contract or agreement between nuclear generation and other departments shall ensure the support is performed in accordance with the requirements of this PD.

For example: Meteorological services may perform annual meteorological data reviews and calculate dispersion and deposition factors for use the radioactive effluents control program.

5. RESPONSIBILITIES 5.1 The Chief Nuclear Officer is responsible for establishing the policy and general requirements for the Radiological Monitoring and Controls Program, for pr~)Viding management support and guidance for the program's implementation, and ensuring compliance with all regulatory requirements is maintained. The chief nuclear officer is also responsible for ensuring that support from reporting departments is provided for the Radiological Monitoring and Controls Program.

5.2 The Station Director is responsible for the overall development, implementation, and maintenance of the Radiological Monitoring and Controls Program in accordance with the requirements of this PD.

5.3 The operations director is responsible for the direct implementation of the Radiological Monitoring and Controls Program with the exception of the design of radwaste treatment and effluent monitoring systems.

5.4 The engineering director is responsible for maintaining the design bases for installed plant" radwaste treatment and effluent monitoring systems, structures, and components and providing technical support to the plant for the operation and maintenance of these systems.

CY2u3r07. DOC 1121.1307

Radiological Monitoring and Controls Program CY2 R7B Page 8of12 5.5 The quality verification director is responsible for auditing the Radiological Monitoring and Controls Program as outlined in Section 10.3.10.

5.6 The maintenance services director is responsible for maintaining the radiation monitoring*

systems and the hardware and software for the Rad Effluent program.

6. ' KEY IMPLEMENTING DOCUMENTS 6.1 Inter-Departmental Administrative Procedures (IDAPs)

Inter-Department Administrative Procedures shall be developed to address the following aspects of the Radiological Monitoring and Controls Program:

6.1.1 An IDAP shall be developed to define the requirements and responsibilities associated with the Radioactive Effluent Control Program.

6.1.2 An IDAP shall be developed to define the requirements and responsibilities associated with the Environmental Radiological Monitoring Procedure.

6.2 Department-Level Administrative Procedures (DLAPs)

Departments responsible for performing activities related to the Radioactive Effluent Control program shall develop DLAPs as appropriate to control program activities.

7. CLOSELY RELATED PROGRAMS 7.1 Interfaces This section describes each of the principal interfaces and boundaries between this Program Directive and other management processes.

7.1.1 AD10, ,;Records" "Records" provides for the retention of Radiological Monitoring and Controls Program records.

7 .1.2 CF3, "Design Control" "Design Control" addresses the implementation of design activities for installed radwaste treatment and effluent monitoring systems in accordance with the requirements of NRG Regulatory Guide 1.143, Revision 1. 1111 6 I 7.1.3 CF4, "Modification Control" "Modification Control" addresses the implementation of modification activities for installed ~ffluent monitoring systems.

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Radiological Monitoring and Controls Program CY2 R7B Page 9of12 7.1.4 CY1, "Chemistry/Radiochemistry" "Chemistry/Radiochemistry" addresses the methods for chemistry/radiochemistry sampling and analysis of liquid and gaseous radioactive effluents in support of this PD.

7.1.5 CY2.ID1, "Radioactive Effluent Controls Program" "Radioactive Effluent Controls Program" contains the general program requirements to ensure the requirements of 10 CFR Part 20 and 10 CFR Part 50, Appendix I, are met.

7.1.6 OM?, "Problem Resolution" "Problem Resolution" addresses deficiencies identified during the implementation of the radioactive effluent control program. OM? also addresses evaluating nonconformances for reportability in accordance with Technical Specifications.

7 .1. 7 TQ1, "Personnel Training and Qualification" "Personnel Training and Qualification" identifies training and qualification requirements for personnel.

7 .1.8 Xl1, "Regulatory Interface" "Regulatory Interface" addresses the prpcess for required reporting and communication with outside agencies.

8. . RECORDS None
9. REFERENCES 9.1 Diablo Canyon.Nuclear Power Plant Facility Operating Licenses (Unit 1, Unit 2) 9.2 QA Commitments:

9.2.1 FSAR Chapter 17.2 9.2.2 Regulatory Guide 1.33, 2/78 (Rev. 2) 11116 I 9.3 Regulatory Guides:

9.3.1 Guide 1.109, Revision 1, October 1977, "Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50 Appendix I" 11/16 9.3.2 Guide 1.143, Revision 1, October 1979, "Design Guidance for Radioactive Waste I Management Systems, Structures, and Components Installed in Light-Water-Cooled Nuclear Power Plants" CY2u3r07.DOC 1121.1307

Radiological Monitoring and Controls Program CY2 R78 Page 10of12 9.3.3 Guide 1.21, Revision 1, June 1974, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluent from Light-Water-Cooled Nuclear Power Plants" 9.3.4 Guide 1.23, February 1972, "Onsite Meteorological Programs"*

9.3.5 Guide 4.1, Revision 1, April 1975, "Programs for Monitoring Radioactivity in the Environs of Nuclear Power Plants" 9.3.6 Guide 4.15, Revision 1, February 1979, "Quality Assurance For Radiological Monitoring Programs (Normal Operations) - Effluent Streams and the Environment" 9.4 Title 10, Code of Federal Regulations:*

9.4.1 Part 20, "Standards for Protection Against Radiation" 9.4.2 Part 50, Appendix I 9.4.3. Part 50, Appendix A, GDC 60, 64 9.4.4 Part 50.36a, "Technical Specifications on Effluents from Nuclear Power Reactors" 9.5 Title 40, Code of Federal Regulations, "Environmental Radiation Protection Standards for Nuclear Power Operations"

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Radiological Monitoring and Controls Program CY2 R7B Page 11of12

10. GRADED QA REQUIREMENTS FOR RADIOLOGICAL MONITORING AND CONTROLS PROGRAM The basis for these Graded QA requirements is to comply with the regulations of 10 CFR 20, 10 CFR 50, 40 CFR 190, the Technical Specifications and Regulatory Guides 1.21, and 4.15.

10.1 Graded Items Radioactive Effluent monitoring instruments are classified as Category 2 or Category 3 items per Regulatory Guide 1.97, "Instrumentation for Light-Water-Cooled Nuclear Power Plants to Assess Plant and Environs Conditions During and Following an Accident." These instruments are used for detection and assessment of releases and possibly detection of containment breach with accomplishment of mitigation of the breach. These items fall under Graded QA requirements.

10.2 Graded Activities 10.2.1 Installed radiation monitors required per Technical Specification 3.3.3 for monitoring radioactive effluents during plant operations or accidents shall be calibrated at prescribed intervals.

10.2.2 Sampling and analysis of liquid and gaseous effluents shall be performed in accordance with CY1, "Chemistry/Radiochemistry."

  • 10.2.3 Calculations, computer programs, and procedures for evaluating the dose associated with radioactive effluents shall be performed in accordance with approved quality related procedures.

- regulation 40 CFR 190.

10.3.2 The Annual Radiological Environmental Operating Report shall be developed in accordance with Technical Specification 5.6.2.

10.3.3 The Annual Radioactive Effluent Release Report shall be developed in accordance with Technical Specification 5.6.3.

10.3.4 Records that support and document the Radiological Monitoring and Controls Program shall be controlled in accordance with AD10, "Records."

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Radiological Monitoring and Controls Program CY2 R78 Page 12of12 10.3.5 Personnel involved in direct implementation of chemistry/radiochemistry, operations, or radiation protection activities in support of the Radiological Monitoring and Controls Program are qualified in accordance with the requirements of TQ1, "Personnel Training and Qualification." In addition, personnel involved in direct implementation of activities in support of the Radiological Environmental Monitoring Program are qualified in accordance with the requirements of an interdepartmental administrative procedure for Environmental Radiological Monitoring (ERMP).

10.3.6 Notifications and reports to and correspondence with regulatory agencies shall be done in accordance with X11, "Regulatory Interface."

10.3.7 Written plans, procedures and instructions for implementing Radiological Monitoring and Controls Program shall be prepared, processed, and controlled in accordance with AD1, "Administrative Control Program."

10.3.8 Procurement of quality-related equipment or services shall be in accordance with written procedures. Applicable regulatory requirements, design bases, and any other requirements necessary to assure adequate quality shall be included in or invoked by reference in documents for procurement of items or services. Test or acceptance requirements and documentation to be submitted by the supplier shall be identified in the procurement documents. Receipt inspection requirements, if required, shall be identified in the procurement documents.

10.3.9 Deficiencies identified during implementation of this program shall be documented and controlled in accordance with OM?, "Problem Resolution."

10.3.1 O FSAR Chapter 17.18, "Audits," prescribes the audit frequency for various portions of the RMCP:

a. The performance of activities required by the quality assurance program for the Radioactive Effluents Control Program shall be audited at least once per 24 months unless specified otherwise.
b. The Radiological Environmental Monitoring Program, implementing procedures, and program results shall be audited at least once per 24 months.
c. The Offsite Dose Calculation Procedure and its implementing procedures shall be audited at least once per 24 months.

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Attachment 2 PG&E Letter DCL-17-031 Diablo Canyon Power Plant Administrative Procedure CY2.ID1, "Radioactive Effluent Controls Program," Revision 14

      • ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

DIABLO CANYON POWER PLANT CY2.ID1 INTERDEPARTMENTAL ADMINISTRATIVE PROCEDURE Rev.14 Page 1of39 Radioactive Effluent Controls Program 03/16/17 Effective Date QUALITY RELATED Table of Contents

1. SCOPE ........................................................................................................... 1
2. DISCUSSION ................................................................................................. 2
3. DEFINITIONS ................................................................................................. 2
4. RESPONSIBILITIES ....................................................................................... 3
5. INSTRUCTIONS ............................................................................................. 4 5.1 Administrative Requirements .......................................................................... 4 5.2 Reporting Requirements ................................................................................. 5 5.3 Major Changes to Liquid, Gaseous, and Solid Radwaste Treatment Systems .......................................................................................................... 9
6. RECORDS ...................................................................................................... 9
7. REFERENCES ................................................................................................ 9 ATTACHMENTS:
1. Radioactive Liquid Effluent Monitoring Instrumentation Operational Requirements ............................................................................................... 11
2. Radioactive Gaseous Effluent Monitoring Instrumentation Operational Requirements ............................................................................................... 15
3. Liquid Effluents - CONCENTRATION Operational Requirements ................. 19
4. Liquid Effluents - Dose Operational Requirements ........................................ 23
5. Liquid Radwaste Treatment System Dose Operational Requirements .......... 24
6. Gaseous Effluents - Dose Rate Operational Requirements ........................... 25
7. Dose - Noble Gases Operational Requirements ........................................... 30
8. Iodine 131, Iodine 133, Tritium, and Radioactive Material in Particulate Form ............................................................................................................. 31
9. Gaseous Radwaste Treatment System Operational Requirements ............... 33 1O. Total Dose Operational Requirements .......................................................... 34
11. Radiological Environmental Monitoring Operational Requirements ............... 36
12. Land Use Census Operational Requirements ............................................... 37
13. High Alarm Setpoints - FB & CR Ventilation Systems Actuation Instrumentation ............................................................................................. 38
1. SCOPE 1.1 This procedure states the requirements of the Radioactive Effluent Controls Program (RECP). The program implements the requirements of 10 CFR Part 20 and 10 CFR Part 50 Appendix I for Diablo Canyon.

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 2 of 39

2. DISCUSSION 2.1 This procedure identifies the general requirements of Diablo Canyon's Radioactive Effluent Controls Program. These requirements are defined in accordance with the Technical Specifications and NRC Generic Letter 89-01. Ret 7*22 2.2 The following requirements from Technical Specification Section 5.5.1 (TS 5.5.1) apply:

2.2.1 The Off-site Dose Calculation Manual (ODCM) shall identify the methods and parameters used for:

  • Calculation of off-site doses resulting from radioactive gaseous and liquid effluents
  • Calculation of gaseous and liquid effluent monitoring alarm and trip setpoints,
  • Conducting the radiological environmental monitoring program.

2.2.2 The ODCM shall also identify the following:

  • Radioactive effluent controls
  • Radiological environmental monitoring activities

NOTE: CAP A-8, "Off-Site Dose Calculations" provides guidance for specific methods and parameters used in the calculation of off-site doses resulting from discharge of radioactive gaseous and liquid effluents.

CAP A-8 also provides guidance for calculation of gaseous and liquid effluent monitor alarm/trip setpoints. As such, CAP A-8 is incorporated into CY2.ID1 by reference.

2.2.3 The Diablo Canyon ODCM is made up of the following procedures:

  • CY2.ID1, "Radioactive Effluent Controls Program"
  • RP1 .ID11, "Environmental Radiological Monitoring Procedure"
  • CY2, "Radiological Monitoring and Controls Program"
a. Changes to ODCM procedures are required to be processed per TS 5.5.1. 3/17 I
3. DEFINITIONS 3.1 ODCP: Offsite dose calculation procedure (CAP A-8)

3.2 Shutdown

Taking the reactor sub-critical.

3.3 Startup

Taking the reactor critical.

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 3 of 39

4. RESPONSIBILITIES 4.1 The chemistry manager is responsible for:

4.1.1 Ensuring that the process for calculation of offsite doses is implemented in a manner that meets regulatory requirements.

4.1.2 Preparation of the ARERR.

4.1.3 Providing recommendations to Operations for pre-discharge processing of radioactive waste.

4.1.4 Ensuring that a comparison of the ARERR and the AREOR is performed.

4.1.5 Ensuring that offsite dose increases resulting from updates in the Land Use Census (LUC; provided in accordance with Attachment 12) are promptly determined and communicated to radiation protection.

  • 4.2 The radiation protection manager is responsible for:

4.2.1 Ensuring that the annual LUC is performed and .that the results are provided to chemistry so that chemistry can update the dose requirements identified in Attachment 12.

4.2.2 Ensuring that the results of the annual LUC are included in the Annual Radiological Environmental Operating Report.

4.2.3 Ensuring that changes to the Environmental Radiological Monitoring Procedure are provided to chemistry for inclusion in the ARERR.

4.2.4 Ensuring preparation, review and approval of the Nonroutine Radiological Environmental Operating Report when required by Attachment 11.

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Radioactive Effluent Controls Program 'CV2.ID1 R14 Page 4 of 39

5. INSTRUCTIONS
  • 5.1 Administrative Requirements NOTE 1: It is the intent of the Radioactive Effluent Control Program (RECP) to monitor all significant release pathways from the power plant. A pathway is considered significant if evaluation shows activity from the path results in off site dose greater than or equal to 1O percent of the total offsite dose from all RECP pathways.

NOTE 2: Minor releases from the power plant through known pathways occur due to maintenance activities. For example, containment air may escape to the environment when the equipment hatch or door is open. From a RECP release and dose perspective, minor releases are usually negligible and within the margin of error of the models for significant monitored pathways and the respective offsite doses.

5.1.1 REFER TO Attachments 1-12 for the operational requirements of the Radioactive Effluent Controls Program (RECP).

5.1.2 Ensure it is understood that operational requirements are implemented by Equipment Control Guidelines (ECGs, as described in OP1 .DC16), CAP A-8, and Xl1.ID2.

a. The ECGs implement those requirements that are related to equipment and have specific allowed outage times or operator actions.
b. CAP A-8 includes the methodology and parameters used in the calculation of off-site doses resulting from radioactive gaseous and liquid effluents and in the calculation of gaseous and liquid effluent monitor alarm/trip setpoints.
c. Xl1.ID2 implements the reporting requirements.

NOTE: Though not required PER NRG Reg Guide 1.23, precipitation is typically measured at Diablo Canyon and included with the ARERR.

5.1.3 Check that availability of measurements from the Diablo Canyon meteorology system is <::90% as required PER NRG Reg Guide 1.23 (RG 1.23, also called Safety Guide 23). Ret 7*10*0 (This requirement may be satisfied by strip charts when digital records cannot be obtained.)

a. Meteorological parameters required by RG 1.23 for Diablo Canyon are:
  • Wind speed
  • Wind direction
  • Temperature at two levels on the same tower (e.g., 1Om and 60m)

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 5 of 39 5.2 Reporting Requirements 5.2.1 Annual Radioactive Effluent Release Report (ARERR)

a. Ensure that the ARERR covering the operation of the plant during the previous calendar year is submitted before May 1 of each year in accordance with 10 CFR 50.36a. .
b. Ensure that the ARERR includes the following:
1. A summary of the quantities of radioactive liquid and gaseous effluents and solid waste released from the units as outlined in Regulatory Guide 1.21 with data summarized on a quarterly basis following the format of Appendix B thereof.
2. A summary of the quantities of solid wastes in the format of Table 3 in Reg Guide 1.21, Appendix B shall be supplemented with three additional categories a) Class of solid wastes (as defined by 10 CFR Part 61) b) Type of container (e.g., LSA, Type A, Type B, Large Quantity) c) Solidification agent or absorbent (e.g., cement, urea formaldehyde).
3. A list and description of unplanned releases of radioactive materials in gaseous and liquid effluents (as defined in CAP A-8) made during the reporting period from the site to unrestricted areas.
4. A description of changes to the OCDM as detailed in the following:

a) PER Technical Specification 5.5.1, ensure changes to the following procedures made during the reporting period are included:

1) CY2.ID1, "Radioactive Effluent Controls Program (RECP)"
2) CY2, "Radiological Monitoring and Controls _Program (RMCP)"
3) RP1 .1011, "Environmental Radiological Monitoring Program (ERMP)"
4) CAP A-8, "Off-Site Dose Calculations"

(

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 6 of 39 NOTE: An FSAR update may be used in lieu of the ARERR for communicating changes in the Radwaste Solidification Process Control Program to the NRC.

b) Though not part of the ODCM, changes to the following procedures are also included in the ARERR because solid radwaste disposition for each year is reported there. Ret 7 *10*9 *

1) ' RP2.DC2, "Radwaste Solidification Process Control Program (PCP)"
2) RP2.DC3, "Radwaste Dewatering Process Control Program" c) IF a change is made to any of the procedures listed in steps 5.2.1 b.4.a) or 5.2.1 b.4.b},

THEN include a copy of the current revision(s) for each procedure in the ARERR.

1) WHEN multiple changes to any one procedure are made during the reporting period, THEN include a copy of each revision.

NOTE: Revision bars are required by Tech Spec 5.5.1c. in ALL revisions of ODCM procedures that are submitted in the ARERR.R 017 *10*11 3/17

2) Ensure that revision bars are used to identify each ODCM procedure change submitted with the ARERR.Ret 7.10.11
5. A listing of new locations for dose calculations and/or environmental monitoring identified by the LUC PER Attachment 12.
6. WHEN inoperability of liquid or gaseous effluent monitoring instrumentation was not corrected within the time specified in Attachments 1 and 2, THEN include an explanation in the ARERR.
7. WHEN liquid holdup tanks or gas storage tanks exceed the limits of ECG 19.1 or ECG 24.3, THEN include a description of the events leading the exceedance in the ARERR.

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 7 of 39

c. IF major changes to the liquid, gaseous and solid radwaste treatment systems are NOT submitted as part of the annual FSAR update, THEN ensure that the ARERR includes a discussion of the changes including the following:
1. A summary of the evaluation that led to the determination that the change could be made in accordance with 10 CFR 50.59.
2. A sufficiently detailed discussion of the evaluation basis such that it completely supports the change without requiring additional or supplemental information.
3. A detailed description of the equipment, components and processes involved and the interfaces with other plant systems.
4. An evaluation of the change which shows the predicted releases of radioactive materials in liquid and gaseous effluents and/or quantity of solid waste that differ from those previously predicted in the license application and amendments thereto.
5. An evaluation of the change which shows any expected maximum exposures to a member of the public in the the unrestricted area (or to the general population) that differ from those previously estimated in the License application and the respective amendments.
6. A comparison of the predicted releases of radioactive materials in liquid and gaseous effluents and in solid waste to the actual releases for the period prior to when the changes are to be made.
7. An estimate of the exposure to plant personnel as a result of the change.

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 8 of 39 NOTE 1: Acceptable methods for calculating the-dose contribution from liquid and gaseous effluents for step 5.2.1 d.5 are given in Regulatory Guide 1.109, Rev. 1, October 1977.

NOTE 2: The licensee has the option of retaining the summary of required meteorological data on site in a file that shall be provided to the NRG upon request.

d. Ensure that the ARERR also includes the following:
1. An annual summary of hourly meteorological data collected over the previous year in either of the following forms:

a) In the form of an hour-by-hour listing (hard copy or electronic) of wind speed, wind direction, atmospheric stability, and precipitation (if measured).

b) In the form of joint frequency distributions of wind speed, wind direction, and atmospheric stability.

2. An assessment of the radiation doses due to the radioactive liquid and gaseous effluents released from the unit or station during the previous calendar year.
3. An assessment of the radiation doses from radioactive liquid and gaseous effluents to members of the public inside the site boundary due to their activities during the report period. (see FSAR Figure 2.1-2)
4. All assumptions used in making assessments for steps 5.2.1 d.2 and 5.2.1 d.3, i.e., specific activity, exposure time, and location.

a) The meteorological conditions concurrent with the time of release of radioactive materials in gaseous effluents (as determined by sampling frequency and measurement) shall be used for determining gaseous pathway doses.R017 -19

  • Ret 7 -20 3/17
5. An assessment of radiation doses to the likely most exposed member of the public from reactor releases and other nearby uranium fuel cycle sources, including doses from primary effluent pathways and direct radiation, for the previous calendar year to show conformance with 40 CFR Part 190, "Environmental Radiation Protection Standards for Nuclear Power Operation."
e. Ensure the ARERR submittal for Diablo Canyon combines those secti9ns that are common to both Unit 1 and Unit 2.

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Radioactive Effluent Controls Program CY2.ID1 R14 Page 9 of 39 5.3 Major Changes to Liquid, Gaseous, and Solid Radwaste Treatment Systems 5.3.1 WHEN major changes to the liquid, gaseous, and solid radwaste treatment systems can be made be made in accordance with 10 CFR 50.59, THEN the ensure that changes are implemented through the DCPP design control process.

6. RECORDS 6.1 Data Sheets and records will be maintained in the Records Management System (RMS) in accordance with CY1 .DC1, "Analytical Data Processing Responsibilities."
7. REFERENCES 7.1 CAP A-5, "Liquid Radwaste Discharge Management" 7.2 CAP A-6, "Gaseous Radwaste Sampling and Analysis for Release" 7.3 CAP A-8, "Off-site Dose Calculations" 7.4 CF4.ID1, "Modification Request and Authorization" 7.5 CF6.ID1, "Setpoint Control Program" 7.6 CY2, "Radiological Monitoring and Controls Program" 7.7 OP1.DC16, "Control of Plant Equipment Not Required by the Technical Specifications" 7.8 RP1 .ID11, "Environmental Radiological Monitoring Procedure" 7.9 Xl1.ID2, "Regulatory Reporting Requirements and Reporting Process" 7 .1 O Action Requests/Notifications I

7.10.1 A0581581, "Track LAR Revising Fuel Handling Requirements per TSTF-51" 7.10.2 A0619600,. "Rad Effluent Sampling of Ni-63" 7 .10.3 A0660441, "ODCM Change Identification Discrepancies" 7.10.4 A0702694, "Evaluate Detection Limit Differences for ECG and Procedures" 7.10.5 50453741, "Update CY2.ID1 for PCP" 7.10.6 50596176, "CY2.ID1 Needs Revision" 7.10.7 50624472, "DA-Vac Ops - Not Consistent w/FSAR" 7.10.8 50640298, "DA-RPI 2014: 90% of Met Tower Data not U" 7.10.9 50688029, "DA-QDEF - CY2.ID1 clarification" CY2!1D1u3r14.DOC 0302.1442

Radioactive Effluent Controls Program CY2.ID1 R14 Page 10 of 39 7.10.10 50834457, "DA-Potential Risks Due to Sanitary Sewage" 3/17 7.10.11 50893145, "DA-QAAF -ODCM submission error" 7.11 License Amendment 67/66, January 22, 1992 7.12 License Amendment 184/186, January 3, 2006 7.13 License Amendment Request 93-04 7.14 10 CFR 20.1302 7.15 10 CFR 50.36a 7.16 10 CFR 50 Appendix I 7.17 40 CFR 190 7.18 Regulatory Guide 1.21, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants," Revision 1, June 1974 7 .19 Regulatory Guide 1.109, Revision 1, October 1977 7.20 Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors," Revision 1, July 1977 3/17 7.21 Regulatory Guide 1.23 (Safety Guide 23, Onsite Meteorological Programs), February 1972 7.22 NRG Generic Letter 89-01, "Implementation of Programmatic Controls for Radiological Effluent Technical Specifications in the Administrative Controls Section of the Technical Specifications and the Relocation of Procedural Details of RETS to the Off-Site Dose Calculation Manual or to the Process Control Program."

7.23 QA Commitments:

7.23.1 FSAR Chapter 17.2 7.23.2 Reg Guide 4.15, 2/79 (Rev. 1) 11/16 I CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 11 of 39 Radioactive Liquid Effluent Monitoring Instrumentation Operational Requirements Attachment 1: Page 1 of 4

1. Radioactive Liquid Effluent Monitoring Instrumentation (also covered by ECG 39.3)
a. Commitment for Operation
1) The radioactive liquid effluent monitoring instrumentation channels shown in Table 1 shall be OPERABLE with their Alarm/Trip Setpoints set to ensure that the limits of Attachment 3 are not exceeded. The Alarm/Trip Setpoints of these channels shall be determined in accordance with the methodology and parameters in the OFF-SITE DOSE CALCULATIONS (ODC).

I

2) Applicability: At all times.
3) Action:

a) With a radioactive liquid effluent monitoring instrumentation channel Alarm/Trip Setpoint less conservative than required by Attachment 3, immediately suspend the release of radioactive liquid effluents monitored by the affected channel or declare the channel inoperable.

b) With less than the minimum number of radioactive liquid effluent monitoring instrumentation channels OPERABLE, take the ACTION shown in Table 1.

Restore the inoperable instrumentation to OPERABLE status within the time specified in the ACTION, or explain in the next Annual Radioactive Effluent Release Report why this inoperability was not corrected within the time specified.

b. Surveillance Requirements
1) Each radioactive liquid effluent monitoring instrumentation channel shall be demonstrated OPERABLE by performance of the CHANNEL CHECK, SOURCE CHECK, CHANNEL CALIBRATION and CHANNEL FUNCTIONAL TEST at the frequencies shown in Table 2.
2) At least one saltwater pump shall be determined operating and providing dilution to the discharge structure at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> whenever dilution is required to meet the limits of Attachment 3.

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CY2.ID1 R14 Page 12 of 39 Radioactive Liquid Effluent Monitoring Instrumentation Operational Requirements Attachment 1 : Page 2 of 4 Table 1: Radioactive Liquid Effluent Monitoring Instrumentation Minimum Channels Instrument Operable Action

1. Radioactivity Monitors Providing Alarm and Automatic Termination of Release
a. Liquid Radwaste Effluent Line (RM-18)# 1 1
b. Steam Generator Slowdown Tank (RM-23) 1 2
2. Flow Rate Measurement Devices
a. Liquid Radwaste Effluent Line (FIT-243)# 1 4
b. Steam Generator Slowdown Effluent Lines (FR-53) 1 4
c. Oily Water Separator Effluent Line (FR-251 )# 1 4
3. Radioactivity Monitor Not Providing Automatic Termination of Release Oily Water Separator Effluent Line (RM-3)# 1 3
  1. This Radioactive Liquid Effluent Monitoring Instrumentation is common to both units.

Action Statements ACTION 1 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 14 days provided that prior to initiating a release:

a. At least two independent samples are analyzed in accordance with Attachment 3.
b. At least two technically qualified members of the facility staff independently ensure correctness of the release rate calculations and discharge line valvings.

Otherwise, suspend release of radioactive effluents via this pathway.

ACTION 2 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided grab samples are analyzed for radioactivi1r, (beta or gamma) at a lower limit of detection of no more than 10-7 microcuries/ml:R 017*1 A

a. At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the specific activity of the secondary coolant is greater than 0.01 microcuries/gram DOSE EQUIVALENT 1-131, or
b. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when the specific activity of the secondary coolant is less than or equal to 0.01 microcuries/gram DOSE EQUIVALENT 1-131.

ACTION 3 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided that, at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, grab samples are collected and analyzed for 7

radioactivity (beta or gamma) at a lower limit of detection of no more than 10- microcuries/ml or transfer the oily water separator effluent to the Waste Holding and Treatment System or to 3117 j

portable tanks.

ACTION 4 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided the flow rate is estimated at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> during actual releases. Pump performance curves may be used to estimate flow.

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CY2.ID1 R14 Page 13 of 39 Radioactive Liquid Effluent Monitoring Instrumentation Operational Requirements Attachment 1 : Page 3 of 4 Table 2: Radioactive Liquid Effluent Monitoring Instrumentation Surveillance Requirements Channel Channel Source Channel Functional Instrument Check Check Calibration Test

1. Radioactivity Monitors Providing Alarm and Automatic Termination of Release
a. Liquid Radwaste Effluent Line (RM-18) D p R(3) 0(1)
b. Steam Generator Slowdown Tank (RM-23) D M R(3) 0(1)
2. Flow Rate Measurement Devices
a. Liquid Radwaste Effluent Line (FIT-243) D(4) N.A. R 0
b. Steam Generator Slowdown Effluent Line (FR-53) D(4) N.A. R 0
c. Oily Water Separator Effluent Line (FR-251) Daily(4) N.A. R 0
3. Radioactivity Monitor Not Providing Automatic Termination of Release
a. Oily Water Separator Effluent Line (RM-3) D M R(3) 0(2)

(1) The CHANNEL FUNCTIONAL TEST shall also demonstrate that automatic isolation of this pathway and Control Room alarm annunciation occurs if any of the following conditions exits:

a. Instrument indicates measured levels above the Alarm/Trip Setpoint (isolation and alarm), or
b. Relay control circuit failure (isolation only), or *
c. Instrument indicates a downscale failure (alarm only), or
d. Instrument controls not set in operate mode (alarm only).

(2) The CHANNEL FUNCTIONAL TEST shall also demonstrate that Control Room alarm annunciation occurs if any of the following conditions exist:

a. Instrument indicates measured levels above the Alarm Setpoint, or
b. Circuit failure, or
c. Instrument indicates a downscale failure, or
d. Instrument controls not set in operate mode.

(3) The initial CHANNEL CALIBRATION shall be performed using one or more of the reference standards certified by the National Bureau of Standards (NBS) or using standards that have been obtained from suppliers that participate in measurement assurance activities with NBS. These standards shall permit calibrating the system over its intended range of energy and measurement range. For subsequent CHANNEL CALIBRATION, sources that have been related to the initial calibration shall be used.

(4) CHANNEL CHECK shall consist of confirming indication of flow during periods of release. CHANNEL CHECK for FR-251 shall be made once per calendar day,* and for FIT-243 and FR-53 shall be made at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> on days on which continuous, periodic, or batch releases are made.

(5) Frequency Notation Notation Frequency D At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Daily At lease once per calendar day*

M At least once per 31 days 0 At least once per 92 days R At least once per 18 months P Completed prior to each release N.A. Not Applicable The frequency "once per calendar day" could result in two successive channel checks nearly 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> apart over a two day period. This frequency is different from and should not be confused with the frequency notation "D" (at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) defined in Technical Specifications.

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CY2.ID1 R14 Page 14 of 39 Radioactive Liquid Effluent Monitoring Instrumentation Operational Requirements Attachment 1 : Page 4 of 4 Bases: Radioactive Liquid Effluent Monitoring Instrumentation The radioactive liquid effluent instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in liquid effluents during actual or potential releases of liquid effluents. The Alarm/Trip Setpoints for these instruments shall be calculated and adjusted in accordance with the methodology and pa'.rameters in the ODCP to ensure that the alarm/trip will occur prior to exceeding the limits of 10 CFR Part 20. The OPERABILITY and use of this instrumentation is'consistent with the requirements of General Design Criteria (GDC): GDC 17, 1967; GDC 18, 1967; and GDC 70, 1967.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 15of39 Radioactive Gaseous Effluent Monitoring Instrumentation Operational Requirements Attachment 2: Page 1 of 4

1. Radioactive Gaseous Effluent Monitoring Instrumentation (also covered by ECG 39.4)
a. Commitment for Operation I
1) The radioactive gaseous effluent monitoring instrumentation channels shown in Table 3 shall be OPERABLE with their Alarm/Trip Setpoints set to ensure that the limits of Attachment 6 is not exceeded. The Alarm/Trip Setpoints of these channels meeting Attachment 6 shall be determined and adjusted in accordance with the methodology and parametyrs in the ODCP.
2) Applicability: As shown in Table 3.
3)
  • Action:

a) With a radioactive gaseous effluent monitoring instrumentation channel Alarm/Trip Setpoint less conservative than required by the above Commitment, immediately suspend the release of radioactive gaseous effluents monitored by the affected channel, or declare the channel inoperable.

b) With the number of OPERABLE radioactive gaseous effluent monitoring instrumentation channels less than the Minimum Channels OPERABLE, take the ACTION shown in Table 3. Restore the inoperable instrumentation to OPERABLE status within the time specified in the ACTION or explain in the next Annual Radioactive Effluent Release Report why this inoperability was not corrected within the time specified.

b. Surveillance Requirements
1) Each radioactive gaseous effluent monitoring instrumentation channel shall be demonstrated OPERABLE by performance of the CHANNEL CHECK, SOURCE CHECK, CHANNEL CALIBRATION and CHANNEL FUNCTIONAL TEST at the frequencies shown in Table 4.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 16 of 39 Radioactive Gaseous Effluent Monitoring Instrumentation Operational Requirements Attachment 2: Page 2 of 4 Table 3: Radioactive Gaseous Effluent Monitoring Instrumentation Minimum Instrument Channel Operable Applicability Action

1. Gaseous Radwaste System Noble Gas Activity Monitor - Providing Alarm and Automatic Termination of Release (RM-22} 1
  • 5
2. Plant Vent system
a. Noble Gas Activity Monitor Providing Alarm 1
  • 7 (RM-14 or RM-14R)
b. Iodine Sampler 1
  • 9
c. Particulate Sampler 1
  • 9
d. Flow Rate Monitor (FR-12) 1
  • 6
e. Iodine Sampler Flow Rate Monitor 1
  • 6
3. Containment Purge System Noble Gas Activity Monitor - Providing Alarm and 2(1) ** 8 Automatic Termination of Release (RM-44A or 44B) 1

( J 2 channels required in MODES 1, 2, 3 and 4. Only 1 channel required during movement of recently irradiatecj fuel assemblies within containment.

  • At all times.
    • MODES 1-4; also MODE 6 during CORE ALTERATIONS or movement of irradiated fuel within containment.

ACTION 5 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, the contents of the tank(s) may be released to the environment for up to 14 days provided that prior to initiating the release:

a. At least two independent samples of the tank's contents are analyzed, and
b. At least two technically qualified members of the facility staff independently ensure correctness of the release rate calculations and discharge valve lineup.

Otherwise, suspend release of radioactive effluents via this pathway.

ACTION 6 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided the flow rate is estimated at least once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

ACTION 7 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, effluent releases via this pathway may continue for up to 30 days provided grab samples are taken at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and these samples are analyzed for radioactivity within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

ACTION 8 With the number of channels OPERABLE less than required by the Minimum Channels OPERABLE requirement, immediately suspend containment PURGING of radioactive effluents via this pathway.

ACTION 9 With the number of channels OPERABLE less than required by the Minimum Channels1 OPERABLE requirement, effluent releases via the affected pathway may continue for up to 30 days provided samples are continuously collected with auxiliary sampling equipment as required in Commitment Table 6.

NOTE FOR ACTION 9: To respond to the low flow alarm, determine that a simple fix cannot be made and that an auxiliary sampler is needed. Move the sampler in, hook up and ensure operation, a maximum of two hours is considered a reasonable time. Over two hours should.be considered as exceeding the time limitation of the commitment for operation (ECG 39.4).

CY2!1D1u3r14.DOC 0302.1442

_J

CY2.ID1 R14 Page 17of39 Radioactive Gaseous Effluent Monitoring Instrumentation Operational Requirements Attachment 2: Page 3 of 4 Table 4: Radioactive Gaseous Effluent Monitoring Instrumentation Surveillance Requirements Channel Modes for Which Channel Source Channel Functional Surveillance Instrument Check Check Calibration Test Is Required

1. Gaseous Radwaste System Noble Gas Activity Monitor - Providing Alarm and Automatic Termination of p p R(3) Q(1)
  • Release (RM-22)
2. Plant Vent System
a. Noble Gas Activity Monitor Providing D M R(3) Q(2)
  • Alarm (RM-14 or RM-14R)
b. Iodine Sampler W(4) N.A. N.A. N.A. *
c. Particulate Sampler W(4) N.A. N.A. N.A. *
d. Flow Rate Monitor (FR-12) D N.A. R Q *
e. Iodine Sampler Flow Rate Monitor D N.A. R Q *
3. Containment Purge System Noble Gas Activity Monitor - Providing D p R(3) Q(1) **

Alarm and Automatic Termination of Release (RM-44A or 44B)

At all times.

MODES 1-4; also MODE 6 during CORE ALTERATIONS or movement of irradiated fuel within containment.

(1) The CHANNEL FUNCTIONAL TEST shall also demonstrate that automatic isolation of this pathway and control room alarm annunciation occurs if any of the following conditions exists:

a. Instrument indicates measured levels above the Alarm/Trip Setpoint (isolation and alarm), or
b. Instrument indicates a downscale failure (alarm only), or

" c. Instrument controls not set in operate mode (alarm only).

(2) The CHANNEL FUNCTIONAL TEST shall also demonstrate that control room alarm annunciation occurs if any of the following conditions exist:

a. Instrument indicates measured levels above the Alarm Setpoint, or
b. Circuit failure, or
c. Instrument indicates a downscale failure, or
d. Instrument controls not set in operate mode.

(3) The initial CHANNEL CALIBRATION shall be performed using one or more of the reference standards certified by the National Bureau of Standards (NBS) or using standards that have been obtained from suppliers that participate in measurement assurance activities with'NBS. These standards shall permit calibrating the system over its intended range of energy and measurement range. For subsequent CHANNEL CALIBRATION, sources that have been related to the initial calibration shall be used.

(4) The CHANNEL CHECK shall consist of confirming that the iodine cartridge and particulate filter are installed in the sample holders.

(5) Frequency Notation Notation Frequency D At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> w At least once per 7 days M At least once per 31 days Q At least once per 92 days R At least once per 18 months p Completed prior to each release N.A. Not Applicable CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 18 of 39 Radioactive Gaseous Effluent Monitoring Instrumentation Operational Requirements Attachment 2: Page 4 of 4 Bases: Radioactive Gaseous Effluent Monitoring Instrumentation The radioactive gaseous effluent instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in gaseous effluents during actual or potential releases of gaseous effluents. The Alarm/Trip Setpoints for these instruments shall be calculated and adjusted in accordance with the methodology and parameters in the ODCP to ensure that the alarm/trip will occur prior to exceeding the limits of NU REG 0133. The OPERABILITY and use of this instrumentation is consistent with the requirements of General Design Criteria (GDC): GDC 17, 1967; GDC 18, 1967; and GDC 70, 1967. The sensitivity of any noble gas activity monitors used to show compliance with the gaseous effluent release requirements of Attachment 7 shall be such that concentrations as low as 1 x 10-5 µCi/ml are measurable.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 19 of 39 Liquid Effluents - CONCENTRATION Operational Requirements Attachment 3: Page 1 of 4

1. Liquid Effluents - CONCENTRATION
a. Commitment for Operation
1) The concentration of radioactive material released in liquid effluents to UNRESTRICTED AREAS (see FSAR Figure 2.1-2) shall be limited to the concentrations specified in 10 CFR Part 20, Appendix 8, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2 x 10-4 microcurie/ml total activity.
2) Applicability: At all times.

/

3) Action:

With the concentration of radioactive material released in liquid effluents to UNRESTRICTED-AREAS exceeding the above limits, immediately restore the concentration to within the above limits.

b. Surveillance Requirements
1) Radioactive liquid wastes shall be sampled and analyzed according to the sampling and analysis program of Table 5.
2) The results of the radioactivity analyses shall be used in accordance with the methodology and parameters in the ODCP to assure that the concentrations at the point of release are maintained within the limits of Attachment 3.

)

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 20of39 Liquid Effluents - CONCENTRATION Operational Requirements Attachment 3: Page 2 of 4

. Table 5: Radioactive Liquid Waste Sampling and Analysis Program Minimum Lower Limit of Sampling Analysis Detection (LLD)

Liquid Release Type Frequency Frequency Type Of Activity Analysis (µCi/ml)( 1l

1. Batch Waste Release p p Principal Gamma Emitters(6l 5x10-7 (5)

Tanks(4l Each Batch Each Batch Liquid Radwaste 1-131 1x10-6 System and p M Dissolved and Entrained 1x10-5 Condensate Deminerlizer One Batch/M Gases (Gamma emitters) 3/17 Regenerant System p H-3 5 M 1x10-(CDRS) Composite(2l Each Batch Gross Alpha 1x10-7 p Q Sr-89, Sr-90 5x1 o-B Each Batch Com posite(2l Fe-55 1x10-5 6

Ni-63 1x1 ff (N/A for CDRS when no primary-to-secondary leak) l 5X10-B U-233, U-234, U-235, U-236, U-238 (N/A for CDRS when no primary-to-secondary leak)

Pu-238, Pu-239, Pu-240, 5X1 o*B Pu-241, Pu-242 (N/A for CDRS when no primary to secondary leak)

2. Continuous Releases(5l D w Principal Gamma Emitters(6l 5x10-7 (5)

Steam Generator Grab Sample Composite'3l 1-131 1x1 o-6 Slowdown Tank 5

M M Dissolved and Entrained 1x1 ff Grab Sample Gases (Gamma emitters) 5 D M H-3 1x1 ff 3

Grab Sample Composite' l Gross Alpha 1x10-7 D Q Sr-89, Sr-90 5X10-B Grab Sample Composite(3l Fe-55 1x10-6

3. Continuous Releases(s) D w 3 Principal Gamma Emitters(6l 5x10-7 (5l Grab Sample Composite( l Oily Water Separator Effluent
4. Continuous Releases(5l M M Principal Gamma Emitters(6l 5x10-7 (5l Waste Water (Sewage) Grab Sample Grab Sample 3/17 Treatment Plant H-3 1x10-5 Table Notations - next page CY2!1D1 u3r14.DOC 0302.1442

CY2.ID1 R14 Page 21 of 39 Liquid Effluents - CONCENTRATION Operational Requirements Attachment 3: Page 3 of 4 Table Notations (1) The LLD is defined, for the purposes of these specifications, as the smallest concentration of radioactive material in a sample that will yield a net count, above system background, that will be detected with 95% probability with only 5%

probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system, which may include radiochemical separation:

LLD= 4.66sb E

  • V
  • 2.22xl0 6
  • Y *exp (-A.f1t)

Where:

LLD the "a priori" lower limit of detection (microcuries per unit mass or volume),

the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (counts per minute),

E the counting efficiency (counts per disintegration),

v the sample size (units of mass or volume),

6 2.22 x 10 the number of disintegrations per minute per microcurie, y the fractional radiochemical yield, when applicable, f.. the radioactive decay constant for the particular radionuclide (sec-1), and

.6.t the elapsed time between the midpoint of sample collection and the time of counting (sec) .

Typical values of E, V, Y, and t.t should be used in the calculation.

It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as an a posterior (after the fact) limit for a particular measurement.

(2) A composite sample is one in which the quantity of liquid sampled is proportional to the quantity of liquid waste discharged and in which the method of sampling employed results in a specimen which is representative of the liquids released.

(3) To be representative of the quantities and concentrations of radioactive materials in liquid effluents, samples shall be composited in proportion to the rate of flow of the effluent stream. Prior to analyses, all samples taken for the composite shall be thoroughly mixed in order for the composite sample to be representative of the effluent release.

(4) A batch release is the discharge of liquid wastes of a discrete volume. Prior to sampling for analyses, each batch shall be isolated, and then thoroughly mixed, by a method described in the ODCP, to assure representative sampling.

(5) A continuous release is the discharge of liquid wastes of a nondiscrete volume; e.g., from a volume of system that has an input flow during the continuous release. *

(6) The principal gamma emitters for which the LLD specification applies include the following radionuclides: Mn-54, Fe-59, Co-58, Co-60, Zn-65, Mo-99, Cs-134, Cs-137, and Ce-141. Ce-144 shall also be measured but with an LLD of 5x10-6. This list does not mean that only these nuclides are to be considered. Other gamma peaks that are identifiable, together with those of the above nuclides, shall also be analyzed and reported in the Annual Radioactive Effluent Release Report.

If two or more redundant sample and analysis results of the same discharge pathway indicate slight differences in low level isotopic mixture, the analysis resulting in higher calculated dose should be used. The isotopes chosen to represent the discharge shall be reported.

(7) Frequency Notation:

Notation Frequency D At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

w At least once per 7 days.

M At least once per 31 days.

Q At least once per 92 days.

p Completed prior to each release.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 22of39 Liquid Effluents:. CONCENTRATION Operational Requirements Attachment 3: Page 4 of 4 Bases: Liquid Effluents - Concentration This Regulatory Commitment is provided to ensure that the concentration of radioactive materials released in liquid waste effluents to UNRESTRICTED AREAS will be less than the concentration levels specified in 10 CFR Part 20, Appendix B, Table 2, Column 2. This limitation provides additional assurance that the levels of radioactive materials in bodies of water in UNRESTRICTED AREAS will result in exposures within: (1) the Section II.A design objectives of Appendix I, 10 CFR Part 50, to a MEMBER OF THE PUBLIC, and (2) the limits of 10 CFR 20.1301 (e) to the population. The concentration limit for dissolved or entrained noble gases is based upon the assumption that 'Xe-135 is the controlling radioisotope and its Effluent Concentration Limit (EGL) in air (submersion) was converted to an equivalent concentration in water using the methods described in International Commission on Radiological Protection (ICRP) Publication 2.

This Regulatory Commitment applies to the release of radioactive materials in liquid effluents from all units at the site.

The required detection capabilities for radioactive materials in liquid waste samples are tabulated in terms of the Lower Limits Of Detection (LLDs). Detailed discussion of the LLD, and other detection limits can be found in Currie, L.A., "Lower Limit of Detection: Definition and Elaboration of a Proposed Position for Radiological Effluent and Environmental Measurements," NUREG/CR-4007 (September 1984), and in the HASL Procedures Manual, HASL-300 (revised annually).

CY2!1D1u3r14.DOC 0302.1442 L_

CY2.ID1 R14 Page 23 of 39 I

Liquid Effluents - Dose Operational Requirements Attachment 4: Page 1 of 1

1. Liquid Effluents - Dose
a. Commitment for Operation
1) The dose or dose commitment to a MEMBER OF THE PUBLIC from radioactive materials in liquid effluents released, from each unit, to UNRESTRICTED AREAS (see
  • FSAR Figure 2.1-2) shall be limited to the following:

a) During any calendar quarter to less than or equal to 1.5 mrem to the whole body and to less than or equal to 5 mrem to any organ.

b) During any calendar year to less than or equal to 3 mrem to the whole body and to less than or equal to 1O mrem to any organ. *

2) Applicability: At all times.
3) Action:

a) With the calculated dose from the release of radioactive materials in liquid effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to 10 CFR 50.4, a Special Report that identifies the cause(s) for exceeding the limit(s) and defines the corrective actions that have been taken to reduce the releases and the proposed corrective actions to be taken to assure that subsequent releases will be in compliance with. the above limits.

b. Surveillance Requirements
1) Cumulative dose contributions from liquid effluents for the current calendar quarter and the current calendar year shall be determined in accordance with the methodology and parameters in the ODCP at least once per 31 days.

Bases: Liquid Effluents - Dose This Regulatory Commitment is provided to implement the requirements of Sections II.A, Ill.A and IV.A of Appendix I, 10 CFR Part 50. The Limiting Condition for Operation implements the guides set forth in Section II.A of Appendix I. The ACTION statements provide the required operating flexibility and at the same time implement the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive material in liquid effluents to UNRESTRICTED AREAS will be kept "as low as is reasonably achievable." The dose calculation methodology and parameters in the ODCP implement the requirements in Section Ill.A of Appendix I that conformance with the guides of Appendix I be shown by calculational procedures based on models and data, such that the actual exposure of a MEMBER OF THE PUBLIC through appropriate pathways is unlikely to be*

substantially underestimated. The equations specified in the ODCP for calculating the doses due to the actual release rates of radioactive materials in liquid effluents are consistent with the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I," Revision 1, October 1977 and Regulatory Guide 1.113, "Estimating Aquatic Dispersion of Effluents from Accidental and Routine Reactor Releases for the Purpose of Implementing Appendix I," April 1977.

This Regulatory Commitment applies to the release of radioactive materials in liquid effluents from each unit at the site. For units with shared Radwaste Treatment Systems, the liquid effluents from the shared system are to be proportioned among the units sharing that system.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 24of39 Liquid Radwaste Treatment System Dose Operational Requirements Attachment 5: Page 1 of 1

1. Liquid Radwaste Treatment System
a. Commitment for Operation NOTE: The Liquid Radwaste Treatment System is common to both units.
1) The Liquid Radwaste Treatment Syst~m shall be OPERABLE and appropriate portions of the system shall be used to reduce the radioactive materials in liquid wastes prior to their discharge when the projected doses due to the liquid effluent, from each unit, to UNRESTRICTED AREAS (see FSAR Figure 2.1-2) would exceed 0.06 mrem to the whole body or 0.2 mrem to any organ in a 31-day period.
2) Applicability: At all times.
3) Action:

a) With any portion of the Liquid Radwaste Treatment System not in operation and with radioactive liquid waste being discharged without treatment and in excess of the above limits, prepare and submit to the Commission within 30 days, pursuant to 10 CFR 50.4, a Special Report which includes the following information:

(1) Explanation of why liquid radwaste was being discharged without treatment, identification of any inoperable equipment or subsystems, and the reason for the inoperability, (2) Action(s) taken to restore the inoperable equipment to OPERABLE status, and (3) Summary description of action(s) taken to prevent a recurrence.

b. Surveillance Requirements
1) Doses due to liquid releases from each unit to UNRESTRICTED AREAS shall be projected at least once per 31 days, in accordance with the methodology and parameters in the ODCP when Liquid Radwaste Treatment Systems are not being fully utilized.
2) The installed Liquid Radwaste Treatment System shall be considered OPERABLE by meeting attachments 3 and 4.

Bases: Liquid Radwaste Treatment System The OPERABILITY of the Liquid Radwaste Treatment System ensures that this system will be available for us.e whenever liquid effluents require treatment prior to release to the environment. The requirement that the appropriate portions of this system be used when specified provides assurance that the releases of radioactive materials in liquid effluents will be kept "as low as is reasonably achievable." This specification implements the requirements of 10 CFR 50.36a, General Design Criterion 60 of Appendix A to 10 CFR Part 50 and the design objective given in Section 11.D of Appendix I to 10 CFR Part 50. The specified limits governing the use of appropriate portions of the Liquid Radwaste Treatment System were specified as a suitable fraction of the dose design objectives set forth in Section II.A of Appendix I, 10 CFR Part 50, for liquid effluents.

This Regulatory Commitment applies to the release of radioactive materials in liquid effluents from each unit at the site. For units with shared Radwaste Treatment Systems, the liquid effluents from the shared system are to be proportioned among the units sharing that system.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 25of39 Gaseous Effluents - Dose Rate Operational Requirements Attachment 6: Page 1 of 5

1. Gaseous Effluents - Dose Rate
a. Commitment for Operation
1) The dose rate due to radioactive materials released in gaseous effluents from the site to areas at or beyond the SITE BOUNDARY (see FSAR Figure 2.1-2) shall be limited to the following:

a) For noble gases: Less than or equal to 500 mrem/yr to the whole body and less than or equal to 3000 mrem/yr to the skin.

b) For lodine-131, for lodine-133, for tritium, and for all radionuclides in particulate form with half-lives greater than 8 days: Less than or equal to 1500 mrem/yr to any organ.

2) Applicability: At all times.
3) Action:

With the dose rate(s) exceeding the above limits, immediately decrease the release rate to within the above limit(s).

b. Surveillance Requirements
1) The dose rate due to noble gases in gaseous effluents shall be determined to be within the above limits in accordance with the methodology and procedures of the ODCP.
2) The dose rate due to lodine-131, lodine-133, tritium, and all radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents shall be determined to be within the above limits in accordance with the methodology and procedures of the ODCP by obtaining representative samples and performing analyses in accordance with the sampling and analysis program specified in Tabl.e 6.

CY211D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 26 of 39 Gaseous Effluents - Dose Rate Operational Requirements Attachment 6: Page 2 of 5 Table 6: Radioactive Gaseous Waste Sampling and Analysis Program Lower Limit of Sampling Minimum Analysis Detection (LLD)

Gaseous Release Type Frequency Frequency Type of Activity Analysis (µCi/ml)(1)

1. Waste Gas Decay Tank p p Principal Gamma 1x1 o-4 Each Tank Grab Each Tank Emitters(?)

Sample (noble gases)

2. Containment Purge p p Principal Gamma 1x10-4 Each Purge(2l Each Purge(2l Emitters(7 l Grab Sample (noble gases) 1-131, 1-133 1x10*9 Principal Gamma 1x10*9 Emitters (particulates)

H-3 1x10*5

3. Plant Vent M(2l M(2l Principal Gamma 1x10-4 Grab Sample Emitters(?)

(noble gases) w(3)(s) w H-3 1x10"6 Grab Sample '

4. All Release Types as listed Continuous(s) w(4) 1-131 1x10*12 in 1., 2., 3., above, at the plant vent Charcoal 1-133 1x10* 10 Sample Continuous(s) w(4) 11 Principal Gamma 1x10" Particulate Sample Emitters(?)

6 Continuous( J M Gross Alpha 1x10*11 Composite Particulate Sample Continuous(s) Q Sr-89, Sr-90 11 1x1ff Composite Pc;irticulate Sample

5. Steam Generator Slowdown M(B) M(B) Principal Gamma 1x10-4 Tank Vent Emitters(?) (noble gases)
6. Main Condenser Nash 24H'10l 24H(1oJ Principal Gamma 1x10-4 Vacuum Pump Exhaust Emitters(?) (noble gases)

Table Notations - next page CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 27of39 Gaseous Effluents - Dose Rate Operational Requirements Attachment 6: Page 3 of 5 Table Notations (1) The LLD is defined, for purposes of these specifications, as the smallest concentration of radioactive material in a sample that will yield a net count, above system background, that will be detected with 95% probability with only 5%

probability of falsely concluding that a blank observation represents a "real" signal.

For a particular measurement system, which may include radiochemical separation:

LLD= 4.66sb E

  • V
  • 2.22xl0 6
  • Y *exp (-Ut)

Where:

LLD the "a priori" lower limit of detection (microcuries per unit mass or volume),

the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (counts per minute),

E the counting efficiency (counts per disintegration),

V the sample size (units of mass or volume),

2.22 x 106 the number of disintegrations per minute per microcurie, Y the fractional radiochemical yield, when applicable, 1

A the radioactive decay constant for the particular radionuclide (sec- ), and L'H the elapsed time between the midpoint of sample collection and the time of counting (sec).

Typical values of E, V, Y, and Lit should be used in the calculation.

It should be recognized that the LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as an a posterior (after the fact) limit for a particular measurement.

(2) Sampling and analyses shall also be performed following shutdown, startup, or a THERMAL POWER change exceeding 15% of the RATED THERMAL POWER within a 1-hour period, when either:

a. Analysis shows that the DOSE EQUIVALENT 1-131 concentration in the reactor coolant has increased more th\3.n a factor of 3. '
b. The noble gas monitor shows that effluent activity has increased more than a factor of 3.

(3) Tritium grab samples shall be taken a least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when the refueling canal is flooded.

(4) Samples shall be changed at least once per 7 days and analyses shall be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after changing or after removal from sampler. Sampling shall also be performed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> for at least 7 days following each shutdown, startup or THERMAL POWER change exceeding 15% of RATED THERMAL POWER within a 1-hour period and analyses shall be completed within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of changing. When samples collected for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> are analyzed, the corresponding LLD's may be increased by a factor of 10.

This requirement only applies when either:

a. Analysis shows that the DOSE EQUIVALENT 1-131 concentration in the reactor coolant has increased more than a factor of 3.
b. The noble gas monitor shows that effluent activity has increased more than a factor of 3.

(5) Tritium grab samples shall be taken at least once per 7 days from the ventilation exhaust from the spent fuel pool area, whenever spent fuel is in the spent fuel pool.

(6) The ratio of the sample flow rate to the sampled stream flow rate shall be known for the time period covered by each dose or dose rate calculation made in accordance with attachments 6, 7, and 8.

(7) The principal gamma emitters for which the LLD specification applies include the following radionuclides: Kr-87, Kr-88, Xe-133, Xe-133m, Xe-135, and Xe-138 in noble gas releases and Mn-54 , Fe-59, Co-58, Co-60, Zn-65, Mo-99, 1-131, Cs-134, Cs-137, Ce-141, and Ce-144 in Iodine and particulate releases. This list does not mean that only these nuclides are to be considered. Other gamma peaks that are identifiable, together with those of the above nuclides, shall also be analyzed and reported in the Annual Radioactive Effluent Release Report.

If two or more redundant sample and analysis results of the same discharge pathway indicate slight differences in low level isotopic mixture, the analysis resulting in higher calculated dose should be used. The isotopes chosen to represent the discharge shall be reported (8) Grab samples shall be taken and analyzed at least once per 31 days whenever there is flow through the steam generator blowdown tank. Releases of radioiodines shall be estimated based on secondary coolant concentration and partitioning factors during releases or shall be measured.

-- Table Notations Continued On Next Page --

CY2! 101u3r14. DOC 0302.1442

CY2.ID1 R14 Page 28 of 39 Gaseous Effluents - Dose Rate Operational Requirements Attachment 6: Page 4 of 5 Table Notations (continued)

(9) Frequency Notation Notation Frequency w At least once per 7 days M At least once per 31 days Q At least once per 92 days p Completed prior to each release 24H At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (10) When the main condenser vacuum pump is operating and being used to evacuate the main condenser.

CY2!1D1u3r14.DOC 0302.1442 L___

CY2.ID1 R14 Page 29 of 39 Gaseous Effluents - Dose Rate Operational Requirements Attachment 6: Page 5 of 5 Bases: Gaseous Effluents - Dose Rate This Regulatory Commitment is provided to ensure that the dose at any time at and beyond the SITE BOUNDARY from gaseous effluents from all units on the site will be within the annual dose limits of NUREG 0133 to UNRESTRICTED AREAS. The annual dose limits are the doses to be associated with the concentrations of 10 CFR Part 20, Appendix B, Table 2, Column 1. These limits provide reasonable ~ssurance that radioactive material discharged in gaseous effluents will not result in the exposure of a MEMBER OF THE PUBLIC in an UNRESTRICTED AREA, either within or outside the SITE BOUNDARY, to average concentrations exceeding the limits to .be specified in Appendix B, Table 2 of 10 CFR Part 20 (10 CFR Part 20.1302(c)). For MEMBERS OF THE PUBLIC who may at times be within the SITE BOUNDARY, the occupancy of that MEMBER OF THE PUBLIC will usually be sufficiently low to compensate for any increase in the atmospheric diffusion factor above that for the SITE BOUNDARY. Examples of calculations for such MEMBERS OF THE PUBLIC, with the appropriate occupancy factors, shall be given in the ODCP. The specified release rate limits of NU REG 0133 restrict, presently, the corresponding gamma and beta dose rates above*

background to a MEMBER OF THE PUBLIC at or beyond the SITE BOUNDARY to less than or equal to 500 mrems/year to the whole body or to less than or equal to 3000 mrems/year to the skin.

These release rate limits also restrict, at all times, the corresponding thyroid dose rate above background to a child via the inhalation pathway to less than or equal to 1500 mrems/year.

This Regulatory Commitment applies to the release of radioactive materials in ga~eous effluents from all units at the site.

The required detection capabilities for radioactive material in gaseous waste samples are tabulated in 'terms of the lower limits of detection (LLDs). Detailed discussion of the LLD, and other detection limits can be found in Currie, L.A., "Lower Limit of Detection: Definition and Elaboration of a Proposed Position for Radiological Effluent and Environmental Measurements," NUREG/CR-4007 (September 1984), and in the HASL Procedures Manual, HASL-300 (revised annually).

(

(

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 30 of 39 Dose - Noble Gases Operational Requirements Attachment 7: Page 1 of 1

1. Dose - Noble Gases
a. Commitment for Operation
1) The air dose due to noble gases released in gaseous effluents, from each unit, to areas at or beyond the SITE BOUNDARY (see FSAR Figure 2.1-2) 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 calenaar year: Less than or equal to 1O mrad for gamma radiation and less than or equal to 20 mrad for beta radiation.

2) Applicability: At all times.
3) Action:

a) With the calculated air dose from radioactive noble gases in gaseous effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to 1 O CFR 50.4, a Special Report that identifies the cause(s) for exceeding the limit(s), defines the-corrective actions that have been taken to reduce the releases and the proposed corrective actions to be taken to assure that subsequent releases will be in compliance with the above limits.

b. Surveillance Requirements 1-) Cumulative dose contributions for the current calendar quarter and current calendar year for noble gases shall be determined in accordance with the methodology and parameters in the ODCP at least once per 31 days.

Bases: Dose - Noble Gases This Regulatory Commitment is provided to implement the requirements of Sections 11.B, Ill.A and IV.A of Appendix I, 10 CFR Part 50. The Limiting Condition for Operation implements the guides set forth in Section 11.B of Appendix I. The ACTION statements provide the required operation flexibility and at the same time implement the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive material in gaseous effluents to UNRESTRICTED AREAS will be kept "as low as is reasonably achievable." The Surveillance Requirements implement the requirements in Section Ill.A of Appendix I that conformance with the guides of Appendix I be shown by calculational procedures based on models and data sJch that the actual exposure of a MEMBER OF THE PUBLIC through appropriate pathways is unlikely to be substantially underestimated. The dose calculation methodology and parameters established in the ODCP for calculating the doses due to the actual release rates of radioactive noble gases in gaseous effluents are consistent with the' methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I," Revision 1, October 1977 and Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors," Revision 1, July 1977. The ODCP'equations provided for determining the air doses at and beyond the SITE BOUNDARY are based upon the historical average atmospheric conditions.

This Regulatory Commitment applies to the release of radioactive materials in gaseous effluents from each unit at the site. For units with shared Radwaste Treatment Systems, the gaseous effl.uents from the shared system are proportioned among the units sharing the system.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 31of39 Iodine 131, Iodine 133, Tritium, and Radioactive Material in Particulate Form Attachment 8: Page 1 of 2

1. Dose - lodine-131, lodine-133, Tritium, and Radioactive Material in Particulate Form
a. Commitment for Operation
1) The dose to a MEMBER OF THE PUBLIC from lodine-131, lodine-133, tritium and all radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents released, from each unit, to areas at and beyond the SITE BOUNDARY (see Figure 2.1-2) shall be limited to the following:

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

2) Applicability: At all times.
3) Action:

a) With the calculated dose from the release of lodine-131, lodine-133, tritium, and

. radionuclides in particulate form with half-lives greater than 8 days, in gaseous effluents exceeding any of the above limits, prepare and submit to the Commission within 30 days, pursuant to 10CFR50.4, a Special Report that identifies the cause(s) for exceeding the limit(s), defines the corrective actions that have been taken to reduce the releases and the proposed actions to be taken to assure that subsequent releases will be in compliance with the above limits.

b. Surveillance Requirements
1) Cumulative dose contributions for the current calendar quarter and current calendar year for lodirie-131, lodine-133, tritium, and radionuclides in particulate form with half-lives greater than 8 days shall be determined in accordance with the methodology and parameters in the ODCP at least once per 31 days.

CY2!1D1u3r14.DOC 0302.1442

CV2.ID1 R14 Page 32of39 Iodine 131, Iodine 133, Tritium, and Radioactive Material in Particulate Form Attachment 8: Page 2 of 2 Bases: Dose - lodine-131, lodine-133, Tritium, and Radioactive Material in Particulate Form This Regulatory Commitment is provided to implement the requirements of Sections 11.C, Ill.A, and IV.A of Appendix I, 10 CFR Part.SO. The Limiting Conditions for Operation are the guides set forth in Section 11.C of Appendix I. The ACTION statements provide the required operating flexibility and at the same time implement the guides set forth in Section IV.A of Appendix I to assure that the releases of radioactive materials in gaseous effluents to UNRESTRICTED AREAS will be kept "as low as is reasonably achievable." The ODCP calculational methods specified in the Surveillance Requirements implement the requirements in Section Ill.A of Appendix I that conformance with the guides of Appendix .I be shown by calculational procedures based . on models and data, such that the actual exposure of a MEMBER OF THE PUBLIC through appropriate pathways is unlikely to be substantially underestimated. The ODCP calculational methodology and parameters for calculating the doses due to the actual release rates of the subject materials are consistent with the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I," Revision 1, October 1977 and Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors,: Revision 1, July 1977. These equations also provide for determining the actual doses based upon the historical average atmospheric conditions. The release rate specifications for lodine-131, lodine-133, tritium, and radionuclides in particulate form with half-lives greater than 8 days are dependent upon the existing radionuclide pathways to man in the areas at and beyond the SITE BOUNDARY. The pathways that were examined in the development of the calculations were: (1) individual inhalation of airborne radionuclides, (2) deposition of radionuclides onto green leafy vegetation with subsequent consumption by man, (3) deposition onto grassy areas where milk animals and meat-producing animals graze with consumption of the milk and meat by man, and (4) deposition on the ground with subsequent exposure of man.

This Regulatory Commitment applies to the release of radioactive materials in gaseous effluents from each unit at the site. For units with shared Radwaste Treatment Systems, the gaseous effluents from the shared system are proportioned among the units sharing that system.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 33of39 Gaseous Radwaste Treatment System Operational Requirements Attachment 9: Page 1 of 1 1 . Gaseous Radwaste Treatment System

a. Commitment for Operation
1) The GASEOUS RADWASTE SYSTEM and the VENTILATION EXHAUST TREATMENT SYSTEM shall be OPERABLE. The appropriate portions of these systems shall be used to reduce releases of radioactivity when the projected doses in 31 days due to gaseous effluent releases, from each unit, to areas at and beyond the SITE BOUNDARY (see FSAR Figure 2.1-2), would exceed 0.2 mrad to air from gamma radiation or 0.4 mrad to air from beta radiation or 0.3 mrem to any organ of a MEMBER OF THE PUBLIC.
2) Applicability: At all times.
3) Action:

a) With radioactive gaseous waste being discharged without treatment and in excess of the above limits, prepare and submit to the Commission within 30 days, pursuant to 10 CFR 50.4, a Special Report that includes the following information:

(1) Identification of the inoperable equipment or subsystems and the reason for inoperability, (2) Action(s) taken to restore the inoperable equipment to OPERABLE status, and (3) Summary description of action(s) taken to prevent a recurrence.

b. Surveillance Requirements
1) Doses due to gaseous releases from each unit to areas at and beyond the SITE BOUNDARY shall be projected at least once per 31 days, in accordance with the methodology and parameters in the ODCP when Gaseous Radwaste Treatment Systems are not being fully utilized.
2) The installed VENTILATION EXHAUST TREATMENT SYSTEM and GASEOUS RADWASTE SYSTEM shall be considered OPERABLE by meeting attachments 6, 7, or 8.

Bases: Gaseous Radwaste Treatment System The OPERABILITY of the GASEOUS RADWASTE SYSTEM and the VENTILATION EXHAUST TREATMENT SYSTEM ensures that the systems will be available for use whenever gaseous effluents require treatment prior to release to the environment The requirement that the appropriate portions of these systems be used, when specified, provides reasonable assurance that the releases of radioactive materials in gaseous effluents will be kept "as low as is reasonably achievable:" This specification implements the requirements of 10 CFR 50.36a, General Design Criterion 60 of Appendix A to 10 CFR Part 50 and the design objectives given in Section 11.D of Appendix I to 10 CFR Part 50. The specified limits governing the use of appropriate portions of the systems were specified as a suitable fraction of the dose design objectives set forth in Sections 11.B and 11.C of Appendix I, 10 CFR Part 50, for gaseous effluents.

This Regulatory Commitment applies to the release of radioactive materials in gaseous effluents from each unit at the site. For units with shared Radwaste Treatment Systems, the gaseous effluents from the shared system are proportioned among the units sharing that system.

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CY2.ID1 R14 Page 34 of 3,9 Total Dose Operational Requirements Attachment 10: Page 1 of 2

1. Total Dose
a. Commitment for Operation
1) The annual (calendar year) dose or dose commitment to any MEMBER OF THE PUBLIC due to releases of radioactivity and to radiation from uranium fuel cycle sources shall be limited to less than or equal to 25 mrems to the whole body or any organ, except the thyroid, which shall be limited to less than or equal to 75 mrem~.
2) Applicability: At all times.
3) Action:

a) With the calculated doses from the release of radioactive materials in liquid or gaseous effluents exceeding twice the limits of attachments 4, 7, or 8, calculations shall be made including direct radiation contributions from the units and from outside storage tanks to determine whether the above limits of Attachment 1O have been exceeded. If such is the case, prepare and submit to the Commission within 30 days, pursuant to 10 CFR 50.4, a Special Report that defines the corrective action to be taken to reduce subsequent releases to prevent recurrence of exceeding the above limits and includes the schedule for achieving conformance with the above limits. This Special Report, as defined in 1 O CFR 20.2203(a), shall include an analysis that estimates the radiation exposure (dose) to a MEMBER OF THE PUBLIC from uranium fuel cycle sources, including all effluent pathway and direct radiation, for the calendar year that includes the release(s) covered by this report. It shall also describe levels of radiation and concentrations of radioactive material involved, and the cause of the exposure levels or concentrations. If the estimated dose(s) exceeds the above limits, and if the release condition resulting in violation of 40 CFR Part 190 has not already been corrected, the Special Report shall include a request for a variance in accordance with the provisions of 40 CFR Part 190. Submittal of the report is considered a trmely request, and a variance is granted until staff action on the request is complete.

b. Surveillance Requirements J
1) Cumulative dose contributions from liquid and gaseous effluents shall be determined in accordance with attachments 4, 7, and 8, and in accordance with the methodology and parameters in the ODCP.
2) Cumulative dose contributions from direct radiation from the units and from outside storage tanks shall be determined in accordance with the methodology and parameters in the ODCP. This requirement is applicable only under conditions set forth in ACTION a) of Attachment 10.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Pa~e 35of39 Total Dose Operational Requirements Attachment 10: Page 2 of 2 Bases: Total Dose This Regulatory Commitment is provided to meet the dose limitations of 40 CFR Part 190 that have been incorporated into 10 CFR Part 20 by 46 FR 18525. The specification requires the preparation and submittal of a Special Report whenever the calculated doses due to releases of radioactivity and to radiation from uranium fuel cycle sources exceed 25 mrems to the whole body or any organ, except the thyroid, which shall be limited to less than or equal to 75 mrems. For sites containing up to four reactors, it is highly unlikely that the resultant dose to a MEMBER OF THE PUBLIC will exceed the dose limits of 40 CFR Part 190 if the individual reactors remain within twice the dose design objectives of Appendix I, and if direct radiation doses from the units and from outside storage tanks are kept small. The Special Report will describe a course of action that should result in the limitation of the annual dose to a MEMBER OF THE PUBLIC to within the 40 CFR Part 190 limits.

For the purposes of the Special Report, it may be assumed that the dose commitment to the MEMBER OF THE PUBLIC from other uranium fuel cycle sources is negligible, with the exception that dose contribution from other nuclear fuel cycle facilities at the same site or within a radius of 8 km must be considered. If the dose to any MEMBER OF THE PUBLIC is estimated to exceed the requirements of 40 CFR Part 190, the Special Report with a request for a variance (provided the release conditions resulting in violation of 40 CFR Part 190 have not already been corrected), in accordance with the provisions of 40 CFR 190.11 and 10 CFR 20.2203(a), is considered to be a timely request and fulfills the requirements of 40 CFR Part 190 until NRC staff action is completed.

The variance only relates to the limits of 40 CFR Part 190, and does not apply in any way to the other requirements for dose limitation of 10 CFR Part 20, as addressed in attachments 3 and 6. An individual is not considered a MEMBER OF THE PUBLIC during any period in which he/she is engaged in carrying out any operation that is part of the nuclear fuel cycle.

CY2!1D1u3r14.DOC 0302.1442

CY2.ID1 R14 Page 36 of 39 Radiological Environmental Monitoring Operational Requirements Attachment 11 : Page 1 of 1

1. Radiological Environmental Monitoring
a. Commitment for Operation
1) The Radiological Environmental Monitoring Program shall be conducted as specified *in RP1 .1011, "Environmental Radiological Monitoring Procedure."
2) Applicability: At all times.
3) Action:

a) With the confirmed level of radioactivity as the result of plant effluents in an environmental sampling medium at a specified location exceeding the "Reporting Levels for Nonroutine Operating Reports" in RP1 .1011 when averaged over any calendar quarter, prepare and submit to the Commission within 30 days from the end of the quarter, pursuant to 10 CFR 50.4, a Nonroutine Radiological Environmental Operating Report that identifies the cause(s) for exceeding the limit(s) and defines the corrective actions to be taken to reduce radioactive effluents so that the potential annual dose to a MEMBER OF THE PUBLIC is less than the calendar year limits of attachments 4, 7, or 8,. A confirmatory reanalysis of the original, a duplicate, or a new sample may be desirable, as appropriate. The results of the confirmatory analysis shall be completed at the earliest time consistent with the analysis, but in any case within 30 days. When more than one of the radionuclides from "Reporting Levels for Nonroutine Operating Reports" in RP1 .1011 are detected in the sampling medium, this report shall be submitted if:

concentration(!) conceniration(2)

+ ( ) +... ;:::1.0 reporting level ()

1 reporting level 2 When radionuclides other than those in the "Reporting Levels for Non routine Operating Reports" in RP1 .1011 are detected and are the result of plant effluents, a Nonroutine Radiological Environmental Operating Report shall be submitted if the potential annual dose to a MEMBER OF THE PUBLIC from all radionuclides is equal to or greater than the calendar year limits of attachments 4, 7, or 8,. This report shall include an evaluation of ariy release conditions, environmental factors, or other aspects necessary to explain the anomalous result.

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CY2.ID1 R14 Page 37 of 39 Land Use Census Operational Requirements Attachment 12: Page 1 of 1

1. LAND USE CENSUS
a. A Land Use Census shall be conducted as specified in RP1 .1011, "Environmental Radiological Monitoring Procedure."
1) Applicability: At all times.
2) Action:

a) With a Land Use Census identifying a-location(s) that yields a calculated dose or dose commitment greater than the values currently being calculated in Attachment 8, identify the new location(s) in the next Annual Radioactive Effluent Release Report.

b) With a Land Use Census identifying a location(s) that yields a calculated dose or dose commitment (via the same exposure pathway) 20% greater than at a location from which samples are currently being obtained in accordance with _

Attachment 11, add the new location(s) within 30 days to the Radiological Environmental Monitoring Program given in the ERMP. The sampling location(s),

excluding the control station location, having the lowest calculated dose or dose commitment(s), via the same exposure pathway, may be deleted from this monitoring program after October 31 of the year in which this Land Use Census was conducted. Submit in the next Annual Radioactive Effluent Release Report documentation for a change in the ERMP including a revised figure(s) and table(s) for the ERMP reflecting the new location(s) with information supporting the change in sampling locations.

CY2! ID1u3r14. DOC 0302.1442

CY2.ID1 R14 Page 38 of 39 High Alarm Setpoints - FB & CR Ventilation Systems Actuation Instrumentation Attachment 13: Page 1 of 2

1. Fuel Building Ventilation System (FBVS) Instrumentation, RE-58 and RE-59
a. RE-58 Nominal Setpoint::;; 75 mr/hr
1) Bases a) Fuel Handling Accident in Fuel Handling Building (1) The basis for the RE-58 high alarm setpoint is to initiate actions to mitigate offside dose consequences from air borne releases resulting from a fuel handling accident in the Spent Fuel Pool area. Routing ventilation exhaust from the Spent Fuel Pool area through the charcoal filter, thus stripping halogens (principally iodine isotopes) mitigates off-site dose consequences.

The rerouting of the ventilation is accomplished automatically upon receipt of a RE-58 high alarm. Receipt of the high alarm also signals personnel to evacuate the area. PG&E performed a calculation (RA-90-1-0 "High and Alert Alarm Setpoint for RE-58") to base the high alarm setpoint of RE-58 on the airborne radioactivity concentration in the fuel Handling Building for the FSAR Update Expected Case accident release during a fuel handling accident. The Expected Case Accident consequence presented in the FSAR Update is a less severe, but more probable accident than the FSAR 1Update Design Basis Case fuel handling accident. This resulted in a more conservative (lower) setpoint than that for the Design Basis Accident Case. This calculation analyzed the detector sensitivity to the various release nuclides as presented in the FSAR Update.

(2) The high alarm setpoint is set to a value more consistent with the Expected Case Accident dose rates which eliminates spurious ESF actuation while limiting the off-site consequences due to this accident. A::;; 75mr/hr setpoint equates to a site boundary whole body dose of 1.46mr for the duration of the accident, which has been evaluated as being acceptable.

b) Inadvertent Criticality in the Spent Fuel.Pool (1) The high density Spent Fuel Pool racks were redesigned to assure that a Kett equal to or less than 0.95 is maintained with the racks fully loaded with fuel of the highest anticipated reactivity in each of two regions, and flooded with unborated water at a temperature corresponding to the highest reactivity.

PG&E submitted PG&E Letter No. DCL-85-30, "Re-racking of Spent Fuel Pools," on September 19, 1985. The results of the criticality analysis for normal and abnormal operations were evaluated in this report. LAR 85-13 (PG&E Letter No. DCL-85-333) was submitted on October 30, 1985, and summarized the results of the Spent Fuel Pool re-racking report. Postulated events that could potentially involve accidental criticality were examined and it was concluded that the limiting value for criticality (Kett of 0.95) would not be exceeded. Therefore, an inadvertent criticality in the Spent Fuel Pool is not considered a credible accident and an evaluation of the effect of raising the actuation setpoint on RE-58 was not required.

(2) Radiation monitor RE-59, which monitors the new fuel storage vault area, also provides indication of inadvertent criticality and changes in dose rate for radiation protection purposes ..

CY2!1D1u3r14.DOC 0302.1442

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CY2.ID1 R14 Page 39of39 High Alarm Setpoints - FB & CR Ventilation Systems Actuation Instrumentation Attachment 13: Page 2 of 2

b. RE-59 Nominal Setpoint : : ; 15mr/hr
1) Bases a) In DCPP FSAR update in Chapter 12, Table 12.1-1, "Plant Zone Classifications,"

the Fuel Handling Building areas in which RE-59 is located is classified as Zone Ill, "Controlled Assess Requiring Short-Term Occupancy" as indicated in Design Criteria Memorandum DCM-T20.

b) The Zone Ill design maximum dose rate is::::;; 15mr/hr. If the radiation flux reaches this value, the high alarm will be actuated and the ventilation mode will change as indicated above with the RE-58 high alarm actuation.

2. Control Room Ventilation System (CRVS) Instrumentation, RS-25A and RS-26A
a. RS-25A/RS-26A Nominal Setpoint : : ; 2 mr/hr
1) Bases a) Per calculations DV-1-23 and DV-2-23 Attachment 2:

(1) The applicable NRC requirement for the radiation exposure (dose) to personnel in the Main Control Room is 10 CFR 20.105 "Permissible Level of Radiation in Unrestricted Areas" (superseded). Section b (1) of 10 CFR 20.105 limits the radiation dose for unrestricted areas to 2mr/hr and Section b (2) limits the dose to 1OOmr is seven consecutive days. If an operator works in the control room for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> per week (12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> per day and 4 days per week, a normal operator work week) during a 2mr/hr dose rate, the operator will receive a 96mr dose. This is less than the 1OOmr/week dose limit of 10 CFR 20.105 (superseded). Thus, a setpoint of::::;; 2 mr/hr has been established for the Control Room Air Inlet Radiation Monitors. If the radiation flux reaches this value at any of the detectors, a change in the ventilation to Mode 4'will be initiated.

(2) 10 CFR 20.105 has been superseded and any changes to this setpoint will require a basis change to reflect the requirements of 10 CFR 50 Appendix A Criterion 19.

3. All of the setpoints are controlled by the setpoint control program CF6.ID1 and require a design change vehicle (request per CF4.ID1) to change. Actual field setpoints are set more conseNative to account for instrument errors.

CY211D1u3r14.DOC 0302.1442

Attachment 3 PG&E Letter DCL-17-031 I

Diablo Canyon Power Plant Interdepartmental Administrative Procedure, RP1.1011, "Environmental Radiological Monitoring Procedure," Revision 15

      • ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

DIABLO CANYON POWER PLANT RP1 .1011 INTERDEPARTMENTAL ADMINISTRATIVE PROCEDURE Rev.15 Page 1of25 Environmental Radiological Monitoring Procedure 02/22/17 Effective Date QUALITY RELATED Table of Contents

1. SCOPE ........................................................................................................... 1
2. DISCUSSION ....................................*............................................................. 2
3. DEFINITIONS ................................................................................................. 3
4. RESPONSIBILITIES ....................................................................................... 3
5. INSTRUCTIONS ............................................................................................. 5
6. RECORDS .................................................................................................... 10
7. REFERENCES ............................................................................................. 10 ATTACHMENTS:
1. Radiological Environmental Monitoring Program Matrix ................................ 11
2. Environmental Detection Capabilities/Lower Limits of Detection (LLD)

Matrix ............................................................................................................ 15

3. Reporting Levels for Radioactivity Concentration in Env Samples Matrix ...... 17
4. Distances and Directions to REMP Monitoring Stations Matrix ...................... 18
5. Summary of Cross-Check Program with State of California Matrix ................ 21
6. DCPP Onsite REMP Stations ....................................................................... 22
7. DCPP Offsite REMP Stations ....................................................................... 23
8. DCPP Offsite GIS REMP Stations ................................................................ 24
9. AREOR Radiological Monitoring Program Summary Matrix .......................... 25
1. SCOPE 1.1 This procedure constitutes the Diablo Canyon Power Plant (DCPP) Environmental Radiological Monitoring Procedure (ERMP) and implements the requirements of the DCPP Radiological Environmental Monitoring Program (REMP) for DCPP per Technical Specification 5.5.1, 5.6.2, and the DCPP Independent Spent Fuel Storage Installation (ISFSI)

Environmental Report, Section 6.2. This procedure is part of the DCPP Offsite Dose Calculation Manual (ODCM).

1.2 The Humboldt Bay (HB) ISFSI Environmental Thermoluminescent Dosimeter (TLD) 10/16 monitoring and results are part of the HB ISFSI Technical Specification 5.1.2 requirement to provide monitoring in support of the requirements of 10CFR72.44(d)(2) and 10CFR72.126(c)(2). HB ISFSI radiological expertise and support are provided by the DCPP Radiation Protection Manager (RPM) and DCPP RP Department staff.

1.3 This procedure does not implement the administrative requirements for DCPP ground water protection. Refer to RP1.ID13, "DCPP Ground Water Protection Initiative (GPI) Program."

1.4 Changes to this procedure are processed per the requirements of DCPP Technical Specification Section 5.5.1.

RP1!1D11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1 .1011 R15 Page 2 of 25

2. DISCUSSION 2.1 The purpose of a REMP is to provide a- basis for evaluating concentrations of radioactive materials and radiation levels in the environment from radiological releases once a reactor is operational.

2.2 This procedure describes the supplemental and minimum required program, including:

  • Sample locations
  • Types of sample locations
  • Methods and frequency of analysis
  • Reporting requirements
  • Performance of land use census (LUC)

2.4 The program described by thi~ procedure provides measurements of radiation and of radioactive materials in those exposure pathways and for those nuclides that lead to the highest potential radiation exposures of members of the public resulting from plant operation.

2.4.1 This monitoring program implements section IV.B.2, IV.B.3, and IV.C of Appendix I to 10 CFR 50 and supplements the Radioactive Effluent Control Program.

a. Guidance for this monitoring program is provided by the Radiological Assessment Branch Technical Position on Radiological Environmental Monitoring, revision 1, November, 1979. Due to DCPP site characteristics, some program requirements may vary from the Branch Technical Position on REMP (BTP 1979).

2.5 The Diablo Canyon ODCM is made up of the following procedures:

2.5.1 CY2, "Radiological Monitoring and Controls Program" 2.5.2 CY2.ID1, "Radioactive Effluent Controls Program" 2.5.3 RP1 .ID11, "Environmental Radiological Monitoring Procedure" 2.5.4 CAP A-8, "Off-Site Dose Calculation Procedure" RP1 !1011u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1.ID11 R1S Page 3 of 25

3. DEFINITIONS 3.1 Broadleaf Vegetation: The leafy portion of plants such as lettuce, cabbage, spinach, or other similar leafy plants, typically used for human consumption.

3.2 Supplemental Sample: Samples that should be collected when available, but when they are not available, they are not subject to the substitution requirements listed in Attachment 1.

These types of samples are specifically designated as "supplemental" in Attachment 1.

4. RESPONSIBILITIES 4.1 Radiation protection manager is responsible for:

4.1.1 Ensuring implementation of this procedure 4.1.2 Approving the Annual Radiological Environmental Operating Report (AREOR) prior to its submittal to the NRG.

4.2 REMP program owner is responsible for:

4.2.1 Identifying and evaluating the significant pathways of radiological impact to man and biota (e.g., food vectors, recreational use, water use) and subseqµent updating of the REMP.

4.2.2 Ensuring the performance of the annual LUC and that the results are provided to chemistry so that chemistry can establish the dose requirements of CY2.ID1 ,"Radioactive Effluent Controls Program."

4.2.3 Preparing the DCPP AREOR and the HB ISFSI Environmental (Env) TLD Monitoring Report.

4.2.4 Ensuring changes to the ERMP are provided to chemistry for inclusion in the Annual Radiological Effluent Release Report (ARERR).

4.2.5 Ensuring required REMP sampling and monitoring are performed.

4.2.6 Ensuring environmental TLD programs are maintained.

4.2.7 Implementing and communicating contracts with the REMP environmental lab vendor.

RP1!1D11u3r15.doc 0214.1436

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Environmental Radiological Monitoring Procedure RP1.ID11 R15 I Page 4 of 25 4.2.8 Ensuring personnel responsible for the management and implementation of the DCPP REMP receive training on the changes to the REMP at least annually.

a. Training consists of topics related to the changes in the plant's REMP procedures, industry events, any changes in technology that pertain to REMP sampling techniques or to the analysis of REMP samples and the nature and goals of the quality assurance program.
b. Proficiency of personnel who perform activities affecting the quality of the REMP may be maintained by retraining, reexamining, recertifying, or by periodic performance reviews as appropriate.
c. Initial training is provided on an as'needed basis to new personnel responsible for quality related REMP activities.

4.3 REMP environmental lab vendor is responsible for:

4.3.1 Ensuring analysis is performed for the samples as required by the ERMP.

' 4.3.2 Ensuring participation is maintained in ari interlaboratory comparison program sufficient to satisfy step 5.3.1. ,

4.3.3 Ensuring REMP sample results exceeding the criteria in Attachment 3 are communicated promptly to DCPP as per the contract.

4.3.4 Ensuring communication with DCPP per the contract. Examples include:

  • Sample results not meeting the contract "a-priori" LLDs
  • Exceeding contract notification levels
  • Problems with lab REMP sample analyses
  • Problems with sample shipments
  • lnterlaboratory comparison program issues 4.3.5 Ensuring appropriate procedures are established and maintained for sample handling, sample analysis and all associated laboratory equipment.

4.3.6 Ensuring qualifications and training of vendor lab personnel.

4.3.7 Ensuring contract compliance.

4.4 DCPP licensing department is responsible for ensuring reports required by the ERMP are submitted to the appropriate recipients per Xl1.ID2, "Regulatory Reporting Requirements and Reporting Process."

RP1!1D11u3r15.doc 0214.1436

_____ _J

Environmental Radiological Monitoring Procedure RP1.ID11 R15 Page 5 of 25

5. INSTRUCTIONS 5.1 Sampling and MonitoringTo 4341 NOTE: Sampling procedures for the REMP pathways and old steam generator storage facility (OSGSF) sump monitoring are controlled in the DCPP plant manual, Volume 7, "Radiation Protection-Radiation Control Procedures,"

"RCP EM" series of procedures.

5.1.1 Environmental samples shall be collected and analyzed per Attachment 1 at the locations shown in attachments 4, 6, and 7.T35263

a. Analytical techniques used shall be such that the detection capabilities in Attachment 2 are routinely achie_ved.
b. Sampling frequencies specified in Attachment 1 may be allowed an extension of 25 percent (NU REG 1301, Page -16, Section 4.0.2).

(

5.1.2 The OSGSF inspection sumps shall be monitored quarterly to ensure there is no standing water in the sumps. If water is found:Ret 7*3*3  :

a. Initiate the corrective action process.
b. Perform isotopic analysis for plant related isotopes.
c. Disposition the water per plant pr,otocols.

5.2 Land Use Census 5.2.1 The LUC satisfies the requirements of Section IV.B.3 of Appendix I to 10 CFR 50.

a. Restricting the census to gardens of greater than 500 square feet provides assurance that significant exposure pathways via broadleaf vegetation will be identified and monitored as necessary.
b. The size of the garden is the minimum to produce the quantity of 26 kg/year of broadleaf assumed in Regulatory Guide 1.109 for consumption by a child.

RP1!1D11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1.ID11 R15 Page 6 of 25 5.2.2 A DCPP LUC shall be conducted at least once per year, during the growing 10116 I season between February 15 and December 1.

5.2.3 The LUC shall determine the locations in each of the 16 meteorological sectors within a distance of 8 km (5 mi) for:Ref 7 *3 *1

a. The nearest milk animal.
b. The nearest residence.
c. The nearest garden of greater than 50 square meters (500 sq. ft.) producing broadleaf vegetation.
1. Broadleaf vegetation sampling may be performed at the site boundary in a sector with .the highest D/Q in lieu of the garden census portion of the LUC.

5.2.4 The LUC shall be conducted using that information which will provide the best results, which typically consists of discussions with landowners/tenants in conjunction with an aerial survey. Local agricultural authorities may also be consulted.

5.2.5 If the LUC identifies a location(s) that yields a calculated dose or dose commitment greater than the values currently being calculated per CY2.ID1, the new location(s) shall be identified in the next Annual Radioactive Effluent Release Report.

5.2.6 If the LUC identifies a location(s) that yields a calculated dose or dose commitment (via the same exposure pathway) 20 percent greater than at a location from which samples are currently being obtained per CY2.ID1, add the new location(s) within 30 days to the REMP given in this ERMP.

a. Sampling location(s), excluding the control station location, having the lowest calculated dose or dose commitment(s), via the same exposure pathway, may be deleted from this monitoring program after October 31 of the year in which this LUC was conducted.
b. Documentation for a change in the ERMP shall be submitted in the next Annual Radioactive Effluent Release Report including a revised map(s) and table(s) for the ERMP reflecting the new location(s) with information supporting the change in sampling locations.

5.2.7 If the LUC identifies full time residency changes to a member-of-public within one mile of the site boundary, evaluate the potential impact on the NFPA 805 2117 radioactive release calculations 9000041956 (M-1176A) and 9000041957 (M-11768).

RP1!1D11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1 .1011 R15 Page 7 of 25 5.3 Cross-Check Programs 5.3.1 Participation in an interlaboratory comparison program shall be maintained.

a. Participation should include each of the determinations (sample medium-radionuclide combination) a$ described in Attachment 1 to ensure independent checks on the precision and accuracy of the measurements of radioactive materials in the ERMP samples.

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5.3.2 Participation in a split-sampling program with the State of California Department of Public Health (CDPH) as required by CDPH shall be maintained.

a. Program consists of radiological analyses of duplicate (split) samples or replicate analyses of the same sample by both the REMP environmental lab vendor and CDPH.
b. Sample results from the REMP environmental lab vendor are available to CDPH in the AREOR or as requested by CDPH.
c. Sample types, analyses performed, and frequencies of collection are given in Attachment 5.

5.4 Annual Radiological Environmental Operating Report 5.4.1 An AREOR on the REMP shall be prepared annually and submitted to the NRC prior to May 1 of the following year per DCPP Tech Spec 5.6.2.

5.4.2 DCPP AREOR shall include:

a. Summaries, interpretations, and an analysis of trends of the results of the REMP activities for the report period.
b. Comparison with preoperational studies, operational controls (as appropriate),

and previous environmental surveillance reports.

c. Assessment of the observed impacts of the plant operation on the environment.
d. Results of the DCPP LUC.
e. Results of analyses of all radiological environmental samples and of all environmental radiation measurements taken during the period pursuant to the locations specified in tables and map(s) in this ERMP as well as summarized and tabulated results of these analyses and measurements in the format of Attachment 9 or equivalent.
f. Summary description of the REMP.
g. Legible maps covering all sampling locations keyed to a table giving distances and directions from the centerline of Unit One Reactor.

RP1!1D11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1 .1011 R15 Page 8 of 25

h. Results of licensee or REMP analysis lab vendor participation in the interlaboratory comparison program and the corrective action taken if th.e specified program is not being performed as required.
i. Reason for not conducting the REMP as required, and discussion of all deviations from the sampling schedule of Attachment 1, including plans for preventing a recurrence.
j. Discussion of environmental sample measurements that exceed the reporting levels given in Attachment 3, but are not the result of plant effluents (i.e.,

demonstrated by comparison with a control station or with preoperational data).

k. Discussion of all analyses in which the LLD required by Attachment 2 was not achievable.

I. Signature approval of the AREOR by the DCPP RPM.

m. Results of the OSGSF quarterly sump monitoring for standing water in vault sumps. Report plant related isotopic activity detected and disposition of water. Ret 7.3.3
n. Combined percent availability of REMP air samplers. This is done by reporting the percentage of actual runtime (as compared to available runtime) during the year for all REMP air samplers as a combined percentage.T31239
o. Routine ground water radiological monitoring as performed for the industry NEI Ground Water Protection Initiative 07-07 (GPI).

5.4.3 The DCPP AREOR shall be distributed to the following agencies:Ret 7 .3 *2 NOTE: The May 151 deadline for submittal applies to the NRG only.

  • Nuclear Regulatory Commission (NRG)
  • Chief, Radiological Health Branch, CA Dept .of Public Health (CDPH)
  • Executive Officer, San Luis Obispo County Air Pollution Control District
  • San Luis Obispo County Health Officer (Environmental Health Dept) 5.4.4 The HB ISFSI Radiation Protection (RP) Program is implemented by DCPP RP department staff.
a. HB ISFSI Env TLD monitoring results shall be reported annually to the NRG.
b. HB ISFSI Env TLD report should be a separate report from the DCPP AREOR.

RP1!1D11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1.ID11 R15 Page 9 of 25 5.5 Nonroutine Reports 5.5.1 Supplementary Report

a. In the event some results are not available for inclusion with the report, the report shall be submitted noting and expla,ining the reasons for the missing results.
1. Missing data shall be s,ubmitted as soon as possible in a supplementary report.
  • 5.5.2 Nonroutine Radiological Environmental Operating Report
a. If a measured radionuclide concentration resulting from plant effluents in an environmental sampling medium, averaged over any calendar quarter sampling period, exceeds the reporting level given in Attachment 3, or when radionuclides other than those in Attachment 3 are detected and are the result of plant effluents where the potential annual dose to a member of the public from all radionuclides is equal to or greater than the calendar year limits of Appendix I of 10 CFR 50, a non routine radiological environmental operating report shall be prepared per CY2. ID1.
1. This report is not required if the measured level of radioactivity was not the result of plant effluents, however, in such an event, the condition shall be reported and described in the AREOR.

5.6 ERMP Changesr02694 5.6.1 Notification of Sample Unavailability NOTE: The currently approved ERMP allows for substitution of milk and broadleaf vegetation sampling with additional air sampling in two sectors.

a. If milk or vegetation sampling is not being performed as required by Attachment 1, identify specific locations for obtaining replacement samples and add them within 30 days to the REMP given in the ERMP.
1. Specific locations from which samples were unavailable may then be deleted from the monitoring program.
2. Submit in the next Annual Radioactive Effluent Release Report documentation for a change in the ERMP including revised map(s) and table for the ERMP reflecting the new location(s) with supporting information identifying the cause of the unavailability of samples and justifying the selection of the new location(s) for obtaining samples.

RP1 !ID11u3r15.doc 0214.1436

Environmental Radiological Monitoring Procedure RP1.ID11 R15 Page 10 of 25

6. RECORDS 6.1 Performance of the LUC shall be documented, including as a minimum the names of persons contacted and dates of contact. This documentation does not need to appear in the required reports, but should be entered into the records management system (RMS) for the duration of the plant license per AD1 O.ID1, "Storage and Control of Quality Assurance Records."

6.2 Changes to the ERMP shall be retained in RMS for the duration of the plant operating license per AD1 O.ID1, "Storage and Control of Quality Assurance Records."

6.3 REMP training shall be documented and recorded per plant protocols. Training records shall also be placed in RMS per AD1 O.ID1.

7. REFERENCES 7.1 Facilities and Environmental Standards, Radiologic Health Branch, Letter dated March 9, 1984 7.2 HBl-200, Humboldt Bay "ISFSI Conduct of Radiation Protection" 7.3 Corrective Actions:

7.3.1 A0565194, "Request DCPP Biologist or Cal Poly AG Define Growing Season" 7.3.2 A0619597, "Inconsistencies or Improvements to RP1 .ID11" 7.3.3 A0719469, "Establish Quarterly Monitoring of OSGSF" 7.3.4 SAPN 50032742, "REMP Audit Dates and Numbers, Important Document Locations" RP1!1D11u3r15.doc 0214.1436

RP1 .1011 R15 Page 11 of 25 Radiological Environmental Monitoring Program Matrix Attachment 1 : Page 1 of 4

~

Exposure Pathway and/or Number of Representative Collection Required or 1

Sample Type Samples and Sample Locations Sampling Stations Frequency Type of Analysis Supplemental I. Direct Thirty-two routine monitoring 2

Radiation stations containing thermo luminescent dosimeters (TLDs) such that at least two (2) phosphors are present at each station, placed as follows:

An inner ring of stations, one in OSI, OS2, WNI, Quarterly Gamma Dose Required each terrestrial meteorological ISi, 2SI, 3SI, sector in the general area of the 4SI' 5SI' 5S3, SITE BOUNDARY; 6SI, 7S1, 8S1, 8S2, 9SI, and MTI An outer ring of stations, one in OB1, IA1, ICI, Quarterly Gamma Dose Required each terrestrial meteorological 2DI, 3DI, 4CI, sector in the 2.5 to 14 km range 5C1, 6D1, and ?Cl from the site; and One or two areas to serve as 2F2, 4DI, 5F1 Quarterly Gamma Dose Required control stations; and The balance of the stations to be 5F3, 7D1, 7D2, Quarterly Gamma Dose Required placed in special interest areas ?Fl, and 7G2 such as population centers, nearby residences, or schools.

A minimum of four stations ISi, IS2, IS3, IS4, Quarterly Gamma Dose Required around the ISFSI. IS5, IS6, IS?, IS8

2. Airborne Samples from<:: 4 stations: OS2, 8S1, MT1, Continuous 1-131 analysis Required Radioiodine 7D1 sampler Three samples from close to the operation with three SITE BOUNDARY 5F1 (control) sample locations (OS2, 8S1, & MTI) in collection different sectors. weekly or One sample from the vicinity of a more community having the highest frequently if calculated annual average required by ground level D/Q (?DI). dust loading.

If food products are unavailable, ISi & 8S2 Continuous 1-131 analysis Required additional air sampling will be sampler done in the NNW (station 1 S1) operation with and SE (Station 8S2) sectors. sample collection weekly or more frequently if required by dust loading.

3. Airborne Samples from <:: 4 stations: OS2, 8SI, MT1, Continuous Weekly gross Required Particulate ?DI sampler beta radioactivity Three samples from close to the operation with analysis following 3

three SITE BOUNDARY 5F1 (control) sample filter change .

locations {OS2, BS1, & MT1) in collection Quarterly gamma 4

different sectors. weekly or isotopic analysis One sample from the vicinity of a more of composite community having the highest frequently if consisting of calculated annual average required by approx 12 filters ground level D/Q (?DI). dust loading. (by location).

RP1!1D11u3r15.doc 0214.1436

RP1 .1011 R15 Page 12 of 25 Radiological Environmental Monitoring Program Matrix Attachment 1 : Page 2 of 4 Exposure Pathway and/or Number of Representative Collection Required or Sample Type Samples and Sample Locations 1 Sampling Stations Frequency Type of Analysis Supplemental

3. Airborne If food products are unavailable, 1S1 & 8S2 Continuous Weekly gross Required Particulate additional air sampling will be sampler beta radioactivity (continued) done in the NNW (station 1 S1) operation with analysis following 3

and SE (Station 8S2) sectors. sample filter change

  • collection Quarterly gamma 4

weekly or isotopic analysis more of composite frequently if consisting of required by approx 12 filters dust loading. (by location).

4. Airborne
  • Samples from 3 stations: OS2,8S1 Continuous C-14 analysis Supplemental Carbon-14 sampler One sample from each of the 5F1 (control) operation with NW and SE sectors close to the sample site (OS2 and 8S1 ). collection One sample used as a control weekly or station (5F1 ). more frequently if required by dust loading.
5. Waterborne 4
a. Surface One sample from the plant OUT, DCM, and Monthly Gamma isotopic Required Ocean Outfall, Diablo Cove, and an 7C2 (grab sample) and tritium Water area not influenced by plant analysis.

discharge.

One sample from the plant OUT, DCM, and Quarterly Gross Beta, Supplemental Outfall, Diablo Cove, and an 7C2 (grab sample) Total Sr 89/90, area not influenced by plant Fe-55, and Ni-63 discharge.

4

b. Drinking One sample from the plant DW1and5S2; Monthly Gamma isotopic , Required Water drinking water, one sample from OEL (control) (grab sample) 1-131, and tritium Diablo Creek (upstream of plant), analysis.

and one control sample.

One sample from the plant DW1and5S2; Quarterly Gross Beta, Supplemental drinking water, one sample from OEL (control) (grab sample) Total Sr 89/90, Diablo Creek (upstream of plant), Fe-55, and Ni-63 and one control sample.

One sample from Diablo Creek WN2 and 1A2 Quarterly Gamma isotopic4 , Supplemental (downstream of plant) and one (grab sample) tritium, 1-131, sample from Blanchard Spring. gross beta, Total Sr 89/90, Fe-55, and Ni-63 4

c. Ground One sample from wells located OW1, OW2, DY1, Quarterly Gamma isotopic , Supplemental Water under or downgradient from the GW1, andGW2 (grab sample, tritium, gross plant power block. when beta, Total Sr available) 89/90, Fe-55, and Ni-63 4

One sample from a well located WW2,8S3 Quarterly Gamma isotopic , Supplemental outside the plant power block (grab sample, tritium, gross (control sample). when beta, Total Sr available) 89/90, Fe-55, and Ni-63 4

d. Sediment One sample of offshore ocean DCM and 7C2 Annual Gamma isotopic Required sediment from Diablo Cove and (grab sample)

Rattlesnake Canyon.

RP1!1011u3r15.doc 0214.1436

RP1.ID11 R15 Page 13 of 25 Radiological Environmental Monitoring Program Matrix Attachment 1 : Page 3 of 4 Exposure Pathway and/or Number of Representative Collection Required or 1

Sample Type Samples and Sample Locations Sampling Stations Frequency Type of Analysis Supplemental One sii.mple of offshore ocean DCM and 7C2 Annual Total Sr 89/90, Supplemental sediment from Diablo Cove and (grab sample) Fe-55, and Ni-63 Rattlesnake Canyon.

One sample from each of five AVA, MDO, PMO, Semi- Annual Gamma isotopic4 , Supplemental local recreational beaches. CYA, and CBA (grab sample) Total Sr 89/90, Fe-55, and Ni-63 4

e. Marine Flora One sample of kelp DCM, PON, POS, Quarterly Gamma isotopic Supplemental and 7C2 (when available) 4 One sample of intertidal algae DCM and 7C2 Quarterly Gamma isotopic Supplemental (when available)
6. Ingestion
a. Milk Samples from milking animals in 5F2 Semimonthly Gamma isotopic4 Supplemental three locations within 5 km when animals and 1-131 distance having the highest dose are on analysis.

potential. If there are none, then pasture; one sample from milking animals monthly at in each of three areas between 5 other times.

to 8 km distance where doses are calculated to be greater than 1 mrem per year. One sample from milking animals at a control location 15 to 30 km distant and in the least prevalent wind direction.

NOTE: The sample (5F2) should be taken monthly even if there are no indicator samples available.

4

b. Fish and One sample of rock fish (family DCM and 7C2 Quarterly Gamma isotopic Required Invertebrates Sebastes) and one sample of (grab sample) analysis on edible perch (family Embiotocidae) portions of each sample.

4 One sample of rock fish PON and POS Quarterly Gamma isotopic Supplemental (family Sebastes) and (grab sample) analysis on edible one sample of perch portions of each (family Embiotocidae) sample.

4 One sample of mussel DCM and 7C2 Quarterly Gamma isotopic Required (family Mytilus) (grab sample) analysis on edible portions of each sample.

4 One sample of mussel PON Annual Gamma isotopic Supplemental (A0584392)

(family Mytilus) analysis on edible (grab sample) portions of each sample.

4 One sample of mussel POS Quarterly Gamma isotopic Supplemental (family Mytilus) (grab sample) analysis on edible portions of each sample.

4 Fish and One sample of locally harvested 7D3 or 2F1 Quarterly Gamma isotopic Supplemental Invertebrates market fish. (should alternate (grab sample) analysis on edible (continued) between locations) portions of each sample.

RP1!1D11u3r15.doc 0214.1436

RP1 .1011 R15 Page 14 of 25 Radiological Environmental Monitoring Program Matrix Attachment 1 : Page 4 of 4 Exposure Pathway and/or Number of Representative Collection Required or Sample Type Samples and Sample Locations 1 Sampling Stations Frequency Type of Analysis Supplemental 4

c. Broadleaf Three samples of broadleaf Monthly Gamma isotopic Required 5

Vegetation vegetation grown nearest off-site (when analysis (that (see notation locations of highest calculated available) includes 1-131) on #5) annual average ground level D/Q edible portion.

lE milk sampling is not performed.

One sample of each of the Monthly Gamma isotopic4 Required similar broadleaf vegetation (when analysis (that (see notation grown 15 to 30 km distant in the available) includes 1-131) on #5) least prevalent wind direction lE edible portion.

milk sampling is not performed.

4

d. Vegetative One sample of broadleaf 5F2, 7C1, and 7G1 Monthly Gamma isotopic Supplemental Crops vegetation or vegetables or fruit. (when analysis on edible available) portion.

4 One sample of broadleaf 3C1, 6C1, and 7E1 Quarterly Gamma isotopic Supplemental vegetation or vegetables or fruit. (as provided analysis on edible by land portion.

owner)

e. Meat One sample of each species BCM, BGM, BSM, Quarterly Gamma isotopic4 Supplemental (cow, goat, sheep, deer, or pig) JDM, JPM, ACM, (when analysis, and of edible meat portion ADM, APM available and Total Sr 89/90 on slaughtered for personal provided by edible portion.

consumption (not mass market). land owners within 8 km of plant site)

Deviations are permitted from the required sampling schedule if specimens are unobtainable due to circumstances such as hazardous conditions, seasonal unavailability, malfunction of automatic sampling equipment and other legitimate reasons. If specimens are unobtainable due to sampling equipment malfunction, effort shall be made to complete corrective action prior to the end of the next sampling period. All deviations from the sampling schedule shall be documented in the AREOR. It is recognized that, at times, it may not be possible or practicable to continue to obtain samples of the media of choice at the most desired location or time. In these instances, suitable specific alternative media and locations may be chosen for the particular pathway in question and appropriate substitutions made within 30 days in the REMP, and submitted in the next Annual Radioactive Effluent Release Report, including a revised map(s) and table for the ERMP reflecting the new location(s) with supporting information identifying the cause of the unavailability of samples for that pathway and justifying the section of the new location(s) for obtaining samples.

2 For the purposes of this table, a thermoluminescent dosimeter (TLD) is considered to be one phosphor. There are normally three calcium sulfate phosphors in an environmental TLD BADGE. Film badges shall not be used as dosimeters for measuring direct radiation. The DCPP E-Plan is committed to placement of three TLD badges each quarter at each REMP TLD location to allow for monthly readout in case of an event.

Airborne particulate sample filters shall be analyzed for gross beta radioactivity 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or more after sampling to allow for radon and thoron daughter decay. If gross beta activity in air particulate samples is greater than 10 times the yearly mean of control samples, gamma isotopic analysis shall be performed on the individual samples.

4 Gamma isotopic analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility.

5 If broadleaf vegetation food products are unavailable, additional air sampling as specified in Attachment 1, Parts 2 & 3 will be done in the NNW (Station 1S1) and SE (Station 8S2) sectors.

Note: The Branch Technical Position (Nov 79) states, "Any location from which milk can no longer be obtained may be dropped from the surveillance program after notifying the NRG in writing that they are no longer obtainable at that location". Although the milk sampling performed at 5F2 is outside the 5-mile radius and is supplemental to the REMP, this notification should take place if 5F2 milk sampling ceases.

RP1 !ID11u3r15.doc 0214.1436

RP1.ID11 R15 Page 15 of 25 Environmental Detection Capabilities/Lower Limits of Detection (LLD) Matrix Attachment 2: Page 1 of 2 NOTE 1: The gamma emitters and corresponding LLD values listed are derived from standard ODCM guidance for environmental samples as found in NUREG-1301, Table 4.12-1. This list does not mean that only these nuclides are to be considered. Other peaks that are identifiable, together with those of the following nuclides, are also analyzed and reported in the AREOR.

NOTE 2: Required detection capabilities for thermoluminescent dosimeters used for environmental measurements are per the recommendations of ANSl/HPS N13.37.

10/16 NOTE 3: The LLD is defined, for purposes of these specifications, as the a-priori analysis "process" that will yield a net count, above system background, that will be detected with 95 percent probability with only 5 percent probability of falsely concluding that a blank observation represents a "real" signal for the following concentration of radioactive material in a sample.

Airborne Water Particulate or Fish Milk Food Products Soil/Sediment 3

Analysis (pCi/L) Gases (pCi/m ) (pCi/kg, wet) (pCi/L) (pCi/kg, wet) (pCi/kg, dry) Ns Gross beta 4 0.01 H-3 400 Nj Mn-54 15 130 150 Fe-59 30 260 300 Co-58 15 130 150 Co-60 15 130 . 150 Zn-65 30 260 300 Zr-95 30 300 Nb-95 15 150 N2 1-131 1 0.07 1 60 Cs-134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-140 60 60 600 La-140 15 15 150 1

N If no drinking water pathway exists, a value of 3,000 pCi/L may be used for tritium.

All ground water wells should use the 400 pCi/L tritium value regardless of drinking water use.

2 N The LLD value of 1 pCi/L for 1-131 is applicable only to sources used as drinking water. If no drinking water pathway exists, a value of 15 pCi/L may be used for 1-131.

Ns The gamma emitters LLD values listed are derived from the Cs-134/137 10:1 ratio established in the environmental LLDs in NUREG-1301, Table 4.12-1.

RP1!1D11u3r15.doc 0214.1436

RP1 .ID11 R15 Page 16 of 25 Environmental Detection Capabilities/Lower Limits of Detection (LLD) Matrix Attachment 2: Page 2 of 2

1. For a particular measurement system, which may include radiochemical separation:

LLD 4.66Sb

  • Ex V x 2.22 x Y x exp(-A.t)

Where:

LLD = the "a priori" the lower limit of detection as defined above (as pCi per unit mass or volume) the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate (as counts per minute)

E the counting efficiency (as counts per disintegration)

V = the sample size (in units of mass or volume) 2.22 = the number of disintegrations per minute per picocurie Y = the frac_tional radiochemical yield (when applicable}

>-. = the radioactive decay constant for the particular radionuclide t the elapsed time between sample collection (or end of the sample collection period) and time of counting

2. The value of Sb used in the calculation of the LLD for a detection system is based on the actual observed variance of the background counting rate or of the counting rate of the blank samples (as appropriate) rather than on an unverified theoretically predicted variance. In calculating the LLD for a radionuclide determined by gamma-ray spectrometry, the background includes the typical contributions of other radionuclides normally present in the samples (e.g., potassium-40 in milk samples).
3. Analyses is performed in such a manner that the stated LLDs is achieved under routine conditions. Occasionally background fluctuations, unavoidably small sample sizes, the presence of interfering nuclides, or other uncontrollable circumstances may render these LLDs unachievable. In such cases, the contributing factors are identified and described in the AREOR.
4. Use typical values of E, V, Y and tin the calculation. Recognize that the LLD is defined as a-priori (before the fact) limit representing the capability of a measurement system and not as a-posteriori (after the fact) limit for a particular measurement.

RP1 !ID11u3r15.doc 0214.1436

RP1.ID11 R15 Page 17 of 25 Reporting Levels for Radioactivity Concentration in Env Samples Matrix Attachment 3: Page 1 of 1 Airborne Water Particulate or Fish Food Products 3

Analysis (pCi/L) Gases (pCi/m ) (pCi/kg, wet) Milk (pCi/L) (pCi/kg, wet) 1 H-3 20,000 N Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-Nb-95 400 N2 1-131 2 0.9 3 100 Cs-134 30 10 1,000 60 1,000 Cs-137 50 20 2,000 70 2,000 Ba-La-140 200 300 1

N For drinking water samples. This is the 40 CFR 141 value. If no drinking water pathway exists, a value of 30,000 pCi/L may be used.

2 N If no drinking water pathway exists, a value of 20 pCi/L may be used.

RP1!1D11u3r15.doc 0214.1436

RP1 .ID11 R15 Page 18 of 25 Distances and Directions to REMP Monitoring Stations Matrix Attachment 4: Page 1 of 3 Radial Direction Radial Distance from (True Heading) Plant Station Code* Station Name (Degrees) Km (Miles)

OS1 Exclusion Fence-Northwest Corner 320 0.16 (0.1)

OS2 North Gate 320 0.8 (0.5) 1S1 Wastewater Pond 330 0.64 (0.4) 2S1 Back Road-300 m North of Plant 0 0.32 (0.2}

3S1 Road NW of 230 kV Switchyard 23 0.64 (0.4) 4S1 Back Road Between Switchyards 43 0.8 (0.5) 5S1 500 kV Switchyard 58 0.64 (0.4) 5S2 Diablo Creek Weir 65 0.96 (0.6) 5S3 Microwave Tower Road 70 1.02 (0.7) 6S1 Microwave Tower 94 0.8 (0.5) 7S1 Overlook Road 112 0.48 (0.3) 8S1 Target Range 125 0.8 (0.5) 8S2 Southwest Site Boundary 128 1.76 (1.1) 8S3 DCSF96-1 (monitor well) 140 0.64 (0.4) 10/161 9S1 South Cove 167 0.64 (0.4)

MT1 Meteorological Tower 185 0.32 (0.2)

DCM Diablo Cove Marine 249 0.44 (0.27) 10/161 WN1 Northwest Guard Shack 290 0.32 (0.2)

WN2 Diablo Creek Outlet 283 0.25 (0.15) 1A1 Crowbar Canyon 327 2.56 (1.6) 1A2 Blanchard Spring 331 2.4 (1.5)

OB1 Point Buchan 325 5.76 (3.6) 1C1 Montana de Oro Campground 336 7.52 (4.7) 3C1 Ranch Vegetation 20 7.16 (4.5) 4C1 Clark Valley Gravel Pit 45 9.28 (5.8) 5C1 Junction Prefumo/See Canyon Roads 64 7.52 (4.7) 6C1 Household Garden 98 7.24 (4.5) 7C1 Pecha Creek Ruins (Mello Farm) 120 6.56 (4.1) 7C2 Rattlesnake Canyon 124 7.52 (4.7) 2D1 Sunnyside School 10 11.04 (6.9) 3D1 Clark Valley 24 9.92 (6.2) 4D1 Los Osos Valley Road 36 12.16 (7.6) 601 Junction See/Davis Canyon Roads 89 13.4 (8.3)

RP1 !ID11u3r15.doc 0214.1436

RP1 .ID11 R15 Page 19 of 25 Distances and Directions to REMP Monitoring Stations Matrix Attachment 4:* Page 2 of 3 Radial Direction Radial Distance from (True Heading) Plant Station Code* Station Name (Degrees) Km (Miles) 7D1 Avila Gate 118 10.56 (6.6) 7D2 Avila Beach 110 12.16 (7.6) 7D3 Avila Pier 120 11.0 (6.9) 7E1 Avila Valley Barn 103 13.94 (8.66) 2F1 Morro Bay (Commercial Landing) 0 17.44 (10.9) 2F2 Morro Bay Power Plant 358 17.9 (11.2) 5F1 SLO OEL 79 16.41 (10.2) 5F2 Cal Poly Farm 60 20.16 (12.6) 5F3 SLO County Health Department 70 20.32 (12.7) 7F1 Shell Beach 110 17.28 (10.8) 7Gf' Arroyo Grande (Kawaoka Farm) 115 26.88 (16.8) 7G2 Oceano Substation 118 27.68 (17.3)

AVA Avila Beach (near pier) 109 11.75 (7.3)

CBA Cambria Moonstone Beach 330 45.86 (28.5)

CYA Cayucos Beach (near pier) 350 26.87 (16.7)

DY1 Drywell 115' 77 0.041 (0.026)

DW1 Drinking Water, Plant Potable Water Sys 161 0.59 (0.37)

GW1 Ground Water Monitoring Well 1 271 0.15 (0.09)

GW2 Ground Water Monitoring Well 2 195 0.21 (0.13) 10/161 IS1 - IS8 ISFSI 59 0.38 (0.23)

MDO Montana de Oro (Spooners Cove) 336 7.56 (4.7)

OW1 Observation Well 01 336 0.07 (0.046)

OW2 Observation Well 02 157 0.07 (0.045)

OEL Offsite Emergency Lab 79 16.41 (10.2)

OUT Plant Outfall 229 0.15 (0.01) 10/16 [

PMO Pismo Beach (near pier) 113 20.76 (12.9)

PON Pacific Ocean North of Diablo Cove 287 0.56 (0.35) 10/161 POS Pacific Ocean South of Diablo Cove 176 0.7 (0.44)

WW2 Water Well 02 70 1.02 (0.63)

RP1!1D11u3r15.doc 0214.1436

RP1.ID11 R15 Page 20of25 Distances and Directions to REMP Monitoring Stations Matrix Attachment 4: Page 3 of 3

  • Station Code (XYZ):

X - First number (0-9) represents the radial sector in which the station is located:

0 - Northwest 5 - East-northeast 1 - North-northwest 6 - East 2 - North 7 - East-southeast 3 - North-northeast 8 - Southeast 4 - Northeast 9 - South-southeast Y - Letter (S, A-H) represents the distance from the plant:

S - On-site A 2 miles from plant (but off-site)

B 4 miles from plant C 6 miles from plant D 8 miles from plant E 10 miles from plant F 15 miles from plant G 20 miles from plant H - Greater than 20 miles from plant Z - Second number represents the station number within the zone.

  • Station Codes exceptions:

The following stations do not follow the coding system:

  • Diablo Cove Marine (DCM)
  • Montana de Oro - Spooners Cove (MOO)
  • Meteorological Tower (MT1)
  • Pismo Beach (PMO)
  • Northwest guard shack (WN1)
  • Cayucos Beach (CYA)
  • Diablo Creek outlet (WN2)
  • Cambria - Moonstone Beach (CBA)
  • Pacific Ocean North (PON)
  • Blanchard Cow Meat (BCM)
  • Pacific Ocean South (POS)
  • Blanchard Goat Meat (BGM)
  • Offsite Emergency Lab (OEL)
  • Blanchard Sheep Meat (BSM)
  • Plant outfall (OUT)
  • Johe Deer Meat (JDM)
  • Drinking water (DW1)
  • Johe Pig Meat (JPM)
  • Water Well 02 (WW2)
  • Andre Cow Meat (ACM)
  • Observation Well 01 (OW1)
  • Andre Deer Meat (ADM)
  • Observation Well 02 (OW2)
  • Andre Pig Meat (APM)
  • Drywell 115 (DY1)
  • Avila Beach (AVA)

RP1!1D11u3r15.doc 0214.1436

RP1 .1011 R15 Page 21 of 25 Summary of Cross-Check Program with State of California Matrix

  • Attachment 5: Page 1 of 1 Sample Type Station No. Frequency Nl Radioanalyses Milk (supplemental) 5F2 Monthly Gamma Isotopic (incl. 1-131 and K-40)

Drinking Water DW1 Monthly Gamma Isotopic (incl. 1-131 ), H-3 Outfall Water OUT Monthly Gamma Isotopic, H-3 Diablo Creek 582 Monthly Gamma Isotopic, H-3 Vegetative Crops 7G1 Quarterly Gamma Isotopic (supplemental)

Fish or Invertebrate DCM Quarterly Gamma Isotopic 2

Air Particulates and 5F1' 7D1 N Weekly & Gross Beta, 1-131, Radioiodine Quarterly Qtrly Gamma Isotopic (composite airborne particulate samples)

Sediment DCM Annually Gamma Isotopic Direct Radiation (TLD) MT1, 1A1, 1C1, 4D1, 5F3, Quarterly Gamma Exposure (mR) 581, 7D1, 7C1, 7F1,8S2 Kelp (supplemental) DCM Quarterly Gamma Isotopic 1

N When available 2

N The California State CDPH air sampler used for correlation with DCPP 5F1 is located at the SLO County Health Dept on Johnson Avenue (near DCPP TLD station 5F3).

RP1!1D11u3r15.doc 0214.1436

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RP1 !1011u3r15.doc 0214.1436

RP1 .1011 R15 Page 25 of 25 AREOR Radiological Monitoring Program Summary Matrix Attachment 9: Page 1 of 1 Name of F a c i l i t y : - - - - - - - - - - - - - Docket No.: _ _ _ _ _ _ _ _ _ _ __

Location of Facility:____________ Reporting Period: _ _ _ _ _ _ _ _ __

(County, State)

Location with Highest Annual Mean Medium or Type and Total All Indicator Control Pathway Number of Lower Limit of Name, Locations Locations Number of 2

Sampled (Unit of Analyses Detection Distance and Mean 2 Mean Mean 2 Reportable 2 2 Range 2 1

Measurement) Performed (LLD) Direction Range Range Occurrences Unless indicated the LLDs specified in Attachment 2 were met.

2 Mean and the range based upon detectable measurements on ly. Fraction of detectable measurements at specified locations is indicated in parentheses; e.g., (10/12) means that 10 out of 12 samples contained detectable activity.

RP1 !ID11u3r15.doc 0214.1436

Attachment 4 PG&E Letter DCL-17-031 Diablo Canyon Power Plant Chemical Analysis Procedure, CAP A-8, Off-Site Dose Calculations," Revision 38

      • ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

1&2 DIABLO CANYON POWER PLANT CAP A-8 CHEMICAL ANALYSIS PROCEDURE Rev.38 UNITS Page 1of72 Off-Site Dose Calculations 04/06/17 Effective Date QUALITY RELATED REFERENCE USE Table of Contents

1. SCOPE ............................................................................................................ 2
2. DISCUSSION ................................................................................................. 3
3. DEFINITIONS ..................*.............. **.************** ................................................. 6
4. RESPONSIBILITIES ..................................... :................................................. 8
5. INSTRUCTIONS ........................................................................................... 1O 5.1 Procedure Revision Control .......................................................................... 1O 5.2 Liquid Effluent Dose Calculations .. :............................................................... 1O 5.3 Liquid Effluent Dose Projections ................................................................... 12 5.4 Limiting Flowrate Calculation for Liquid Discharges ...................................... 13 5.5 Liquid Effluent Concentration Limit (EGL) Calculations ................................. 15 5.6 Liquid Effluent Radiation Monitor Setpoint Calculations ................................ 17 5.7 Gaseous Effluents ......................................................................................... 23 5.8 Gaseous Dose Rate Calculations ................................................................. 24 5.9 Noble Gas Air Dose Calculations .................................................................. 26 5.10 Gaseous Effluent Dose to Critical Receptor from Iodines, Particulates, Tritium, and Carbon-14 ............................................................. 27 5.11 Alternate Dose Calculations for Gaseous Effluents ....................................... 30 5.12 Gaseous Effluent Dose Projections ............................................................... 30 5.13 Noble Gas Release Rate Limit and Expected Reading Calculations* ............. 31 5.14 Airborne Iodine, Particulate, and Tritium Release Rate Limit Calculation ...... 34 5.15 Gaseous Effluent Radiation Monitor Setpoint Calculations ............................ 35 5.16 40 CFR 190 Nuclear Fuel Cycle Dose Calculations (Direct, Gas, Liquid, &

Airborne) .................................................................................. :.................... 44 5.17 On-Site Dose to Members of the Public ........................................................ 48 5.18 Dose Projection Calculations ........................................................................ 51 5.19 Actions Required for Unplanned Gaseous or Liquid Releases ...................... 53

6. RECORDS .................................................................................................... 54
7. REFERENCES ............................................................................................. 54 ATIACHMENTS:
1. LRW Composite Dose Factors .... ,................................................................. 56
2. Current Dose Receptor Information ............................................................... 59
3. GRW Dose Parameters: Noble Gas Dose Factors ........................................ 61
4. GRW Dose Parameters: Child, Inhalation, Worst Case Organ ...................... 62
5. GRW Dose Parameters: Ground Plane Dose Factors ................................... 63
6. GRW Dose Parameters: Infant, Inhalation Pathway ................. ~ .................... 64
7. GRW Dose Parameters: Child, Inhalation Pathway ....................................... 65 ,
8. , GRW Dose Parameters: Teen, Inhalation Pathway ....................................... 66
9. GRW Dose Parameters: Adult, Inhalation Pathway ....................................... 67 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 2 of 72 UNITS 1&2

10. GRW Dose Parameters: Child, Vegetation Pathway ..................................... 68
11. GRW Dose Parameters: Teen, Vegetation Pathway ..................................... 69
12. GRW Dose Parameters: Adult, Vegetation Pathway ..................................... 70
13. Liquid Discharges Monitored for Radioactivity ............................................... 71
14. Gaseous Releases Monitored for Radioactivity ............................................. 72
1. SCOPE 1.1 This administrative procedure provides guidance for calculations related to radiological liquid and gaseous effluents for Diablo Canyon.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 3 of 72 UNITS 1&2

2. DISCUSSION 2.1 This procedure is used in support of CY2, "Radiological Monitoring and Controls Program" (RMCP) and CY2.ID1, "Radioactive Effluent Controls Program" (RECP) as they relate to routine radioactive liquid and gaseous releases from DCPP to the unrestricted area.

Together with RP1 .ID11, "Environmental Radiological Monitoring Program," and CAP A-8, these procedures form the Diablo Canyon Off-site Dose Calculation Manual.

2.2 Effluent discharge limits implemented by the RMCP are based on the dose commitment to a member of the general public from release of radionuclides through either direct or indirect exposure (e.g., submersion in a cloud of radioactive noble gases, radionuclides deposited on the ground, direct radiation from radionuclides stored on-site, inhalation or ingestion of radionuclides via a food pathway such as milk, meat, vegetable, fish, etc.).

2.2.1 Dose calculations in this procedure are based on models that make it unlikely to underestimate the actual exposure of an individual through relevant pathways.

2.3 40 CFR 190 Dose Calculations for Nuclear Fuel Cycle 2.3.1 Pathways

a. 40 CFR 190, "Environmental Radiation Protection Standards for Nuclear Power Operations," is applicable to operations which are part of a nuclear fuel cycle which result in both of the following:
  • Radiation doses received by members of the public in the general environment
  • Radioactive materials introduced into the general environment
b. The total uranium fuel cycle dose to any member of the public are calculated by summing the following doses:
  • Direct radiation dose
  • Liquid effluent dose
  • Noble gas dose
  • Radioiodine, tritium, C-14, and particulate gaseous effluent dose
c. For DCPP, calculation of the dose contributions from liquid and gaseous effluents, as well as direct radiation from selected outside storage tanks, storage buildings, and the Independent Spent Fuel Storage Installation (ISFSI), are included.

2.3.2 40 CFR 190 Dose Limits

a. The annual dose equivalent to any member of the public from planned discharges of radioactive materials to the general environment (and the radiation associated with these operations) shall not exceed the following:
  • 25 millirem to the whole body
    • 75 millirem to the thyroid
  • 25 millirem to any other organ CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 4 of 72 UNITS 1&2 2.4 The plant vent is the only significant path for gaseous radioactive waste (GRW) release to the environment during normal operation.

2.5 Calculated dose rates and real-time dose to the unrestricted area due to noble gases, gaseous iodines, and airborne particulates are based on discharge from the plant vent.

2.6 Miscellaneous gaseous effluent pathways include the following:

I

  • Chemistry lab fume hood (Aux Building 85')
  • Main condenser Nash vacuum pumpREF 7 *26 2.6.1 These miscellaneous release sources are not continuously monitored but may have dose rates and dose calculated for their path to the unrestricted area.

2.7 The following describe the offsite dose exposure pathways for DCPP:

2. 7.1 The inhalation and ground plane exposure pathways are considered to exist at all locations.

2.7.2 The grass-cow-milk, grass-cow-meat, grass-wild game-meat and vegetation pathways are considered based on their actual existence in the vicinity of the plant.

2.7.3 The dose pathways that have been shown to actually exist at DCPP are the ground plane, inhalation, and the vegetation pathways.

2.7.4 . These dose pathways are reviewed yearly and updated based on the annual land use census survey to ensure that actual exposure to an individual will not be substantially underestimated.

2.7.5 The locations of the pathways and descriptions are listed in Attachment 2.

2.8 Equations for calculating gaseous effluent concentration limits, monitor high alarm setpoints, dose rates, and critical receptor doses are calculated using historical average atmospheric conditions according to the methods described in Reg. Guides 1.109 and 1.111, and NUREGs 0133 and 0472.

2.9 DCPP atmospheric dispersion (x/O) and deposition (D/Q) factors are calculated using the methodology of Reg. Guide 1.111 as implemented by NUREG 2919 (computer code XOQDOQ).

2.1 O DCPP atmospheric dispersion and deposition factors used in this procedure are based on the most recent five years of meteorological data, unless the most recent average differed by 10% or less from the previous average. In that case, no change is required. The current factors are listed in Attachment 2.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 5 of 72 UNITS 1&2 2.11 Gaseous effluent dose factors used in this procedure were generally based on NUREG 0133 methods. Inhalation dose conversion factors used in this procedure were based on those in Reg. Guide 1.109, Rev 1, Table E-9. Three exceptions are H-3, Sb-124, and Sb-125. Inhalation dose conversion factors for H-3, Sb-124, and Sb-125 were taken from NUREG/CR-4013.

2.12 The dose to an individual (critical receptor) due to radioiodines, tritium, carbon-14 (C-14),

and particulates released in gaseous effluents with half-lives greater than 8 days is calculated based on NU REG 0133. This method makes use of the maximum individual concept described in Reg. 'Guide 1.109.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 6 of 72 UNITS 1&2

3. DEFINITIONS 3.1 Allocation Factor (AF): A factor used in the DCPP high alarm setpoint (HASP) methodology that limits:

3.1.1 Effluent concentrations from simultaneous liquid discharges.

3.1.2 Noble gas effluent dose rate from simultaneous atmospheric releases.

3.2 Critical Receptor: An individual who receives the largest dose based on the combination of dose pathways that have been shown to actually exist.

3.2.1 The concept of critical receptor is introduced as a further refinement of the Maximum Individual.

3.2.2 The critical receptor concept is applied at that location where the combination of dispersion (x/Q), deposition (D/Q), existing pathways, occupancy time, receptor age group, and effluent source term indicates the maximum potential exposure.

3.3 Effluent Concentration Limit (EGL): The limit for liquid effluents entering the unrestricted area; limited to the concentrations listed in 10 CFR 20, Appendix B, Table 2, Column 2.

3.4 Expected Reading (ER): The anticipated monitor response based on the known release pathway concentration and the specific monitor response factors.

3.5 High Alarm Setpoint (HASP): An "administrative limit" set per CY2.DC1 to ensure radiation monitor release setpoints calculated do not exceed the liquid or gaseous effluent concentration limits of 10 CFR 20.

3.6 Long-term Gaseous Releases: A long-term gaseous releases is generally continuous and stable in release rate. For example, the effluent from a continuous ventilation system in its normal mode is a long-term gaseous release. Doses due to long-term releases are modeled using five-year historical average dispersion and deposition values PER Reg. Guides 1.109 and 1.111, and NUREGs 0133 and 0472.

3.7 Maximum Individual 3.7.1 The individual that receives the greatest dose due to food consumption, occupancy, and other usage parameters. This concept models those individuals within the local population with habits representing reasonable deviations from the average.

3.7.2 In all physiological and metabolic respects, the maximum individual is assumed to have those characteristics that represent the average for the age group of interest.

3.8 Safety Factor (SF): An administrative factor used in HASP calculations. The SF is set at 0.9 and provides for a HASP at 90% of the 10 CFR 20 concentration limits.

I CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38

. Page 7 of 72 UNITS 1&2 3.9 Short-term Gaseous Releases: Releases that occur for either of the following:

3.9.1 A total of 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> or less in a calendar year 3.9.2 Not more than 150 hours0.00174 days <br />0.0417 hours <br />2.480159e-4 weeks <br />5.7075e-5 months <br /> in any quarter.

3.10 Tritium Correction Factor (TCF): A factor used in HASP calculations for liquid rad monitors that increases the setpoint over a background level that is typically high by assuming a constant, conservative tritium concentration in the liquid effluent. The TCF was originally developed when the results of HASP calculations for monitors that' were intended for gamma-only liquids were barely over background. This condition was originally observed when DCPP recycled primary waste water using evaporators to reduce the overall volume of liquid waste discharged overboard. Continued use of evaporators resulted in buildup of tritium in plant systems where evaporator product was used as make-up. Although recycling primary waste water using evaporators was discontinued, including a TCF in liquid HASP calculations has been retained as a good practice.

3.11 Unplanned (Liquid or Gaseous) Release: An unexpected and potentially unmonitored release to the .environment due to operational error or equipment malfunctions.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 8 of 72 UNITS 1&2

4. RESPONSIBILITIES 4.1 Chemistry and environmental operations manager is responsible for ensming this off-site dose calculation procedure (ODCP) implements all CY2.ID1, "Radioactive Effluent Controls Program," (RECP) and DCPP Technical Specification (TS) requirements related to 4/17 calculating dose received in the unrestricted area around the site as a result of plant operation.

4.2 Chemistry engineering supervisor is responsible for ensuring the following:

4.2.1 The Program implemented through this procedure is followed.

4.2.2 That all RECP and TS requirements are satisfied by the Program.

4.3 Chemistry engineer assigned to radiological effluents is responsible for the following:

4.3.1 Correct and timely performance of calculations required by the procedure for each radioactive effluent released.

4.3.2 Reviewing the results of calculations by spot-checking and maintaining an updated archive of post-release calculated doses to support preparation of the annual report.

4.3.3 Providing oversight of the effluents program's ODCP by performing the following activities:

a. Confirming compliance with RECP or TS ..
b. Providing technical support.
c. Recommending or designing improvements to the dose calculations and the effli!Jent control program when appropriate.
d. Supporting long-term planning for radiological effluenHelated activities and the associated dose calculations.

4.4 Digital systems group is responsible for:

4.4.1 Ensuring any non-vendor computer software that supports the program is maintained current and compatible with the procedure's calculation methods.

4.4.2 Ensuring non-vendor computer hardware that supports the program is maintained operable at all times.

4.5 Vendor for dedicated, effluents-related software or hardware is responsible for:

4.5.1 Ensuring any vendor-supplied computer software that supports the program is maintained currenOmd compatible with the procedure's calculation methods.

4.5.2 Ensuring any vendor-supplied computer hardware that supports the program is maintained operable at all times.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 9 of 72 UNITS 1&2 4.6 PG&E Meteorology group is responsible for providing results of annual recalculation of atmospheric dispersion and deposition factors.

4.7 DCPP Environmental Radiological Monitoring Program personnel are responsible for providing the annual Land Use Census including infqrmation on occupancy at receptor locations. '-

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 10 of 72 UNITS 1&2

5. INSTRUCTIONS 5.1 Procedure Revision Control 5.1.1 Ensure that changes to CAP A-8 are processed per the requirements of DCPP Technical Specification (TS) Section 5.5.1T02694 including use'of revision bars to 4/17 mark changes per TS 5.5.1c.17!ef 7 *28 5.2 Liquid Effluent Dose Calculations 5.2.1 Division of Dose by DCPP Unit
a. Credit 50% each to Unit 1 and Unit 2 for effluent doses originating from the unit-common liquid radioactive waste (lRW) treatment system.

5.2.2 Contributions to Dose

a. Calculate the dose contributions to the total body and each individual organ (bone, liver, thyroid, kidney, lung, and Gl-lll) of the maximum exposed individual (adult) due to consumption of saltwater fish and saltwater invertebrates for all radionuclides identified in li~uid effluents released to unrestricted areas as shown in eq 1 and eq 2:r3 837 Where:

D0 = dose commitment to organ "o" (mrem) b.t =time period for the release (hrs)

Aio = site-specific ingestion dose commitment factor to organ "o" due to ,

radionuclide "i" (mrem/hr per µCi/ml) defined in eq 3 Ci= concentration of radionuclide "i" in undiluted liquid effluent (µCi/ml)

Ai= decay constant of radionuclide "i" tm =time interval between end of sampling and midpoint of release Fe = near field average dilution factor during release period defined Waste flow ( )

as: eq 2 Dilution flow x Z Where: Z =site-specific mixing effect of discharge structure.; specifically, it is the credit taken for dilution which occurs between the discharge structure and the body of water which contaminates fish or invertebrates in the liquid ingestion pathway. For DCPP, Z = 5.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 11 of 72 UNITS 1&2

b. Calculate the site-specific ingestion dose commitment factor, Aio, as shown in eq 3:T30837 Where:

kc = conversion factor of 1.14E+05 (pCi/µCi x mUL x yr/hr)

UF =saltwater fish consumption rate (kg of fish/yr) (For DCPP, UF = 21 kg/yr; value is from NUREG 0133, Section 4.3.1.)

BFi . = saltwater bioaccumulation factor for radionuclide "i" in fish flesh (pCi/kg per pCi/L). [Values for BFi are from Table A-1 of Regulatory (Reg.) Guide 1.109, except uranium and plutonium, which are from NUREG/CR-4013.]

U1 =saltwater invertebrate consumption rate (kg/yr) (For DCPP, U1 =5 kg/yr; value is from NU REG 0133, Section 4.3.1 ).

Bh = saltwater bioaccumulation factor for radionuclide "i" in invertebrate flesh (pCi/Kg per pCi/L) [Values for Bli are from Table A-1 of Reg. Guide 1.109, except uranium and plutonium, which are from NUREG-4013.]

DFi = adult ingestion dose conversion factor for radionuclide "i" (mrem/pCi ingested). Values from Reg. Guide 1.109, Table E-11, with exceptions as follows:

  • H~3, Br-82, Sb-124, Sb-125, Pu-238, Pu-239, Pu-240, Pu-241 and Pu-242, ingestion dose conversion factors from EMP-155.
  • As-76, Sn-113, Sn-117m and Sb-122 ingestion dose conversion factors calculated by ORNL using ICRP-2 methodology.
1. Refer to Attachment 1 for site-specific values for Aio. (When necessary, these factors were corrected for ingrowth of daughter radionuclides following ir19estion of the parent. All radionuclides treated in this manner are followed by "+D."Ret?.s, 7 *11 )

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 12of72 UNITS 1&2 5.3 Liquid Effluent Dose Projections NOTE: The purpose of dose projections is to determine whether appropriate treatment of liquid radioactive materials in relation to maintaining releases "as low as reasonably achievable" is necessary.

5.3.1 General

a. At least once every 31 days, REFER TO Section 5.18 and calculate the projected liquid effluent dose contribution for each unit for the current calendar month, quarter, and year.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 13 of 72 UNITS 1&2 5.4 Limiting Flowrate Calculation for Liquid Discharges NOTE: The maximum effluent flowrate through monitors RE-3, RE-18, and RE-23 is established to provide additional control over effluent releases. Maximum flow rates for releases from the Condensate Demineralizer Regeneration System waste tank and miscellaneous release points are also calculated.

5.4.1 Effluent Concentration Limit (ECl)-Based Calculation

a. Calculate the maximum release rate from the effluent concentration and the 10 CFR 20 effluent concentration limits as shown in eq 4 and eq 5:

f = F(AF) (SF) (TCF) (eq 4 )

. l:_S__

i;oH-3 ECli Where:

f = maximum operational undiluted liquid radwaste effluent discharge flowrate (gpm}

F = expected dilution flowrate (gpm)

AF = lRW source allocation factor from Table 1 SF = safety factor (0.9)

TCF = tritium correction factor defined in eq 11 Ci= concentration of isotopes "i" in the release mix, pre-dilution (µCi/ml)

ECli = effluent concentration limit of radionuclide "i" (µCi/ml) b.

~ c.

WHEN the term, Li equals zero, i;oH-3 ECli THEN calculate the limiting flowrate as shown in eq 5:

f = F (AF) (SF) (TCF) (eq 5)

(Other terms are as defined for eq 4.)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A~a R38 Page 14 of 72 UNITS 1&2 5.4.2 Lower Limit of Detection (LLD)-Based Calculation

a. WHEN there is no primary-to-secondary leakage, THEN assume the oily water separator and miscellaneous release points are not contaminated.

NOTE: While no activity may be present, eq 6 assumes a concentration equal to the lower limit of detection (LLD) for the nuclides listed in CY2.ID1, Attachment 3, Table 5.

b. Calculate practical liquid discharge flowrate limits for uncontaminated pathways as shown in eq 6:

f = F (AF)(SF) (eq 6)

4.3 Where

f = maximum undiluted liquid radwaste effluent discharge flowrate (gpm)

F = expected dilution flowrate (gpm)

AF = LRW source allocation factor from Table 1

'-~

SF = safety factor (0.9) 4.3 =total ECL fraction as given by Li ECLi LLDi (eq 7)

Where:

LLDi = lower limit of detection for radionuclide "i" (µCi/ml) from CY2.ID1, Attachment 3, Table 5 ECLi = effluent cqncentration limit for radionuclide "i"

(µCi/ml)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 15 of 72 UNITS 1&2 5.5 Liquid Effluent Concentration Limit (EGL) Calculations 5.5.1 Liquid EGL for Single Batch

a. Calculate the EGL for the identified mixture of radionuclides in a batch of liquids as shown in eq 8:

Where:

ECLi = unrestricted area total undiluted EGL for particular mixture "j" of identified radionuclides (µCi/ml)

Cu= concentration of radionuclide "i" (µCi/ml) in mixture "j" ECLii = EGL in unrestricted area water for radionuclide "i" in general

(µCi/ml) [Values from 10 CFR 20, Appendix B, Table 2, Column 2.]

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 16 of 72 UNITS 1&2 5.5.2 Liquid ECl for Simultaneous Discharge of Multiple Batches

a. Calculate the overall ECl for simultaneous discharges as shown in eq 9 and eq 10:

Where:

ECloverall = unrestricted area ECl for current radionuclide mixture for concurrent "j" discharges (µCi/ml)

Ci= total activity concentration for individual stream "j" (µCi/ml)

ECli= total ECl for individual mixture (or stream) "j" calculated as shown in eq 8 (µCi/ml) * '

<l:>j = ratio of the flowrate for individual discharge pathway "j" to sum of all individual undiluted pathway flowrates is defined as:

f.

~ (eq 10)

.L)i Where: fi =undiluted effluent flowrate for pathway, "j" CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 17 of 72 UNITS 1&2 5.6 Liquid Effluent Radiation Monitor Setpoint Calculations

  • 5.6.1 General NOTE: The alarm/trip setpoints for the liquid effluent radiation monitors are derived from the concentration limits in 10 CFR 20.1001-2404, Appendix B, Table 2, Column 2.
a. Ensure that the effluent concentration limits in 10 CFR 20 are not exceeded by implementing alarm/trip setpoints for liquid effluent monitors as required by CY2.ID1, "Radioactive Effluents Control Program. nT34939 .
b. Ensure that liquid effluent monitor setpoints take into account appropriate factors for dilution, dispersion, or decay of radioactive materials that may occur between the point of discharge and the unrestricted area boundary.

NOTE: The high alarm setpoint (HASP) should also be the maximum operational setpoint.

c. Ensure that each liquid effluent monitor setpoint provided to Operations is less than or equal to the HASP calculated in this section.
d. Ensure that liquid effluent monitor setpoint reviews and calculations

, are performed and documented as des.cribed in CY2.DC1, "Radiation Monitor System High Alarm Setpoint Control Program."

e. WHEN alarm setpoints for RE-18 and/or RE-23 are changed, THEN notify Emergency Planning personnel to evaluate the change vs. applicable EAL threshold values in Emergency Plan Appendix D, "Emergency Action Level Technical Basis Manual," per OM10.ID2, "Emergency Plan Revision and Review."
  • CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 18 of 72 UNITS 1&2 5.6.2 Allocation and Safety Factors

a. Ensure simultaneous releases do not exceed the liquid effluent concentration limits of 10 CFR 20 in the unrestricted area by implementing setpoints 1 for liquid effluent monitors as necessary to meet site limits identified in CY2.ID1 _Ts4ese NOTE: The allocation factors (AFs) in Table 1 take into account that RE-3 and RE-18 are unit-common, while the RE-23 monitors are unit-specific.
b. WHEN calculating high alarm setpoints (HASP),

THEN use the allocation factors (AF) shown in Table 1 (adjusted as necessary to support operation) such that the sum of liquid release AFs for the site is less than or equal to 1.

Table 1: Typical Liquid Effluent Discharge Pathway Allocation Factors for the Site Discharge Pathway Radiation Monitor Allocation Factor Oily Water Separator RE-3 0.01 Liquid Radwaste System RE-18 0.90 Steam Generator Slowdown (Unit 1) RE-23 (U1) 0.04 Steam Generator Slowdown (Unit 2) RE-23 (U2) 0.04 Miscellaneous N/A 0.01

c. WHEN calculating HASPs, THEN use a safety factor (SF) to make the setpoint more conservative.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 19 of 72 UNITS 1&2 5.6.3 Tritium Correction Factor (TCF)

a. Ensure that liquid effluent concentrations released to the unrestricted areas do not exceed 10 CFR 20 limits by including a TCF (step 5.6.3b) in liquid HASPs.
b. Calculate the TCF as shown in eq 11:

Where:

ECLHs = effluent concentration limit of tritium CHs = tritium concentration in release mix, pre-dilution (µCi/ml)

[Tritium concentration "CH3 " is conservatively estimated.]

F = conservative dilution flowrate (gpm) f = conservative undiluted effluent flowrate (gpm)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 20 of 72 UNITS 1&2 NOTE: The Oily Water Separator typically contains no radioactive material. Only when ~here is primary-to-secondary leakage does this become a liquid effluent discharge point.

5.6.4 Oily Water Separator (OWS) RE-3 HASP Calculation

a. Calculate the HASP for Oily Water Separator (OWS) RE-3 as shown in step 5.6.4a.1 (no primary-to-secondary leak) or step 5.6.4a.2 (measurable primary-to-secondary leak).
1. WHEN no significant primary-to-secondary leakage is taking place, OR when no activity has been identified in the OWS, THEN calculate the RE-3 HASP per eq 12:

HASPRE-3 = 3 x BKGDRE-3 (eq 12)

2. WHEN activity from primary-to-secondary leakage is present in the OWS, THEN calculate RE-3 HASP per eq 13:

HASPRE-3 = BKGDRE-3 +(AFXSF)x LkrCY Where:

r l ~ F/f /

L.J Ci EC Li i;tH3

] xTCF (eq 13)

HASPRE-3= high alarm setpoint for RE-3 (cpm)

BKGDRE-3=background reading for RE-3 (cpm)

AF= OWS allocation factor from Table 1 SF = safety factor for RE-3 (0.9) kv= monitor response factor (cpm/µCi/ml)

Cv = concentration of gamma emitting isotopes in release mix, pre-dilution (µCi/ml)

F = dilution flowrate (gpm) f= undiluted effluent flowrate (gpm)

Ci= concentration of radionuclide "i" in release mix, pre-dilution (µCi/ml)

ECli = effluent concentration limit of radionuclide "i" TCF = tritium correction factor defined in eq 11 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 21of72 UNITS 1&2 5.6.5 Liquid Radwaste System (lRS) RE-18 HASP Calculation

a. Calculate the HASP for Liquid Radwaste System (lRS) RE-18 per eq 14:

Where:

HASPRE,18 = high alarm setpointfor RE-18 (cpm)

BKGDRE-11i =background reading for RE-18 (cpm)

AF = lRW source allocation factor from Table 1 SF= safety factor for RE-18 (0.9) kv= monitor response factor (cpm/µCi/ml)

Cv = concentration of gamma emitting isotopes in release mix, '

pre-dilution (µCi/ml)

F = dilution flowrate (gpm) f = undiluted effluent flowrate (gpm)

Ci= concentration of radionuclide "i" in release mix before dilution (µCi/ml)

ECli = effluent concentration limit of radionuclide "i" TCF = tritium correction factor defined in eq 11 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 22of72 UNITS 1&2 5.6.6 Steam Generator Blowdown (SGBD) Tank RE-23 HASP Calculation

a. Calculate the HASP for Steam Generator Blowdown (SGBD) Tank RE-23 per eq 15:

HASPRE-23 = BKGDRE-23 + (AF)(SF)x LkrCr ~ F/f / ] xTCF (eq 15) r r LiCi ECLi i;0H3 Where:

HASPRE-23 = high alarm setpoint for RE-23 (cpm)

BKGDRE-23 =background reading for RE-23 (cpm)

" AF = SGBD effluent system' allocation factor for each unit from Table 1 SF=:= safety factor for RE-23 (0.9) kv= monitor response factor (cpm/µCi/ml)

Cv = concentration of gamma emitting isotopes in the release mix before dilution (µCi/ml)

F = dilution flowrate (gpm) f = undiluted effluent flowrate (gpm)

Ci= concentration of radionuclide "i" in the release mix, pre-dilution (µCi/ml)

ECli = effluent concentration limit of radionuclide "i" TCF = tritium correction factor defined in eq 11 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R3B Page 23of72 UNITS 1&2 5.7 Gaseous Effluents 5.7.1 Information Affecting Dose Calculation for Critical Receptors NOTE 1: PG&E's meteorologists in San Ramon provide the annual report that includes 5-year averages factors for atmospheric dispersion (x/O) or depositio'n (D/Q).

NOTE 2: The locations and occupancy for members of the public in the area immediately surrounding the plant are provided annually by the Environmental Radiological Monitoring Program in the Land Use Census.

a. REFER TO Attachment 2 for current factors for atmospheric dispersion (x/Q) or deposition (D/Q).
b. WHEN the latest 5-year average value of xfO or D/Q changes by more than ten percent from the previous year, OR a change in dose receptor location and/or occupancy requires designation of a new critical receptor, THEN ensure that Attachment 2 is updated.

CAUTION: Failure to update dose receptor inputs by the first day of a new year can cause significant errors in the permit dose estimates until the tables are updated and the permits reprocessed. REF 7 *26

c. Ensure that by the first day of the calendar year that the gaseous receptor information in the effluent software is updated based on the current information in Attachment 2.
  • 5.7.2 Gaseous Effluent Concentration Limits NOTE: DCPP dose rate limits act to restrict the instantaneous concentrations of radionuclides in gaseous effluents at the site boundary at all times.
a. Ensure that radiological effluent controls restrict the dose rates calculated at or beyond the site boundary due to radioactive gaseous effluents to the following:
1. For noble gases:

a) Less than or equal to 500 mrem/yr to the total body b) Less than or equal to 3000 mrem/yr to the skin

2. For iodine-131, iodine-133, tritium, and for all radionuclides in particulate form with half-lives greater than 8 days:

a) Less than or equal to 1500 mrem/yr to any organ CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 24of72 UNITS 1&2 5.8 Gaseous Dose Rate Calculations 5.8.1 Dose Rate to Total Body - Immersion in Noble Gas Cloud

a. Calculate the dose rate to the total body due to immersion in a cloud of noble gases as shown in eq 16:

~/a)Max L:K/}i ~ 500 mrem/year (eq 16) i Where:

Qi release rate of radionuclide "i" (µCi/sec)

(Other terms are as previously defined.)

5.8.2 Dose Rate to Skin - Immersion in Noble Gas Cloud

a. Calculate the dose rate to the skin due to immersion in a cloud of noble gases as shown in eq 17:

~/Q )Max [~(Li + 1.1 Mi )Oi) ~ 3000 mrem/year (eq 17)

(Where terms are as previously defined.)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 25 of 72 UNITS 1&2 5.8.3 Dose Rate to Organs - Iodines, Tritium, and Particulate

a. Calculate the dose rate to organ "o" from radioiodines, tritium, and particulates released in gaseous effluents as shown in eq 18:

Where:

Pio= K'(BR) DFAio Where:

K' = 10 6 pCi/µCi BR = breathing rate of the child age group (m 3/yr) [The default value of 3700 m3/yr is from Reg. Guide 1.109, Table E-5.]

DFAi = inhalation dose factor for organ "o" for child age group from radionuclide "i" (mrem/pCi) from Reg. Guide 1.109, Table E-9, with the following exceptions: H-3, Sb-124 and Sb-125 inhalation dose conversion factors from NUREG/CR4013.(0ther terms are as previously defined.

Values for Pia are listed in Attachment 4.)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 26of72 UNITS 1&2 5.9 Noble Gas Air Dose Calculations 5.9.1 Gamma Air Dose - Immersion in Noble Gas Cloud

a. Calculate gamma air dose due to immersion in a cloud of noble gases as shown in eq 19:

Where:

Dav= gamma air dose (mrad) 3.17x1 o-s = conversion constant yr/sec M = gamma air dose factor for radionuclide "i" (mrad/yr per µCi/m 3) from Attachment 3 Qi = total release of noble gas radionuclide "i" (µCi)

(Other terms are as previously defined.)

5.9.2 Beta Air Dose - Immersion in Noble Gas Cloud

a. Calculate the beta air dose due to immersion in a cloud of noble gases as shown in eq 20:

Where:

Da13 = beta air dose (mrad)

Ni= beta air dose factor for radionuclide "i" (mrad/yr per µCi/m 3 ) from Attachment 3 (Other terms are as previously defined.)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 27of72 UNITS 1&2 5.1 O Gaseous Effluent Dose to Critical Receptor from Iodines.

Particulates, Tritium, and Carbon-14

~.10.1 Dose Factor Information - Gaseous Effluents i

NOTE 1: Site-specific dose factors are calculated based on NU REG 0133.

All dose conversion factors are taken from Reg. Guide 1.109, Rev 1, Tables E6-E14, except H-3, Sb-124 and Sb-125 dose conversion factors that are from NUREG/CR-4013.

NOTE 2: C-14 total release calculations are made per step 5.10.3a.

a. REFER TO Attachments 5 through 12 for site-specific dose factors when calculating eq 21.
1. IF necessary to calculate a dose factor for use in an unusual circumstance, THEN PERFORM the necessary calculation on a case-by-case basis, AND document its use in the corrective action program.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8. R38 Page 28of72 UNITS 1&2 5.10.2 Total Body and Organ Dose - All Radionuclides

a. Calculate the dose contributions to the total body and each individual organ (bone, liver, thyroid, kidney, lung, and Gl-LLI) of the maximum exposed individual (critical receptor) due to radioactive.gaseous effluent releases from all radionuclides identified in gaseous effluents released to unrestricted areas as shown in eq 21 :

Where:

Dapo = dose to critical receptor for age group "a," pathway "p," and organ "o" (mrem) [Dose due to C-14 may be reported separately from other isotopes within reports.]

WcR =critical receptor x/Q for immersion, inhalation, and all tritium and C-14 pathways (seconds/m 3) from Attachment 2

= critical receptor D/Q for ground plane and all ingestion pathways (1/m 2) from Attachment 2 Raipo = site-specific dose factor for age group "a," radionuclide "i," pathway "p" and organ "j" (mrem/yr per µCi/m 3 for inhalation, tritium, and C-14 pathways; mrem/yr per µCi/sec m2 for ground plane and ingestion pathways).

Qi = total release of radionuclide "i" (µCi)

CAP_A-8u3r38.DOC 0405.0847 L

Off-Site Dose Calculations CAP A-8 R38,.

Page 29of72 UNITS 1&2 5.10.3 Carbon-14 Release Rate -Annual NOTE: PER EPRI Technical Report 1021106, calculation of C-14 released includes factors for production and percent released in both gaseous and chemical form. REF 7 *21

a. Calculate the total C-14 release per unit per year as shown in eq 22 and eq 23:

Oc_14 Tot = µCic-14RxX Fcap x FR9 as (eq 22) (inhalation path)

Oc.14 c02 = µCic-14RxX Fcap X FR9as x FFco2 (eq 23) (ingestion path)

Where:

Oc.14 Tot = total C-14 released from unit i~ gaseous form during a calendar year (µCi)

Oc_14 c02 = total C-14 released from unit in gaseous form as C02 during a calendar year (µCi)

µCic-14Rx= microcuries produced in the reactor per unit per effective full-power year [This value is calculated per Reference 7.21.]

Fcap = Unit's operating capacity factor (:s;1.0) during the year FR9as =fraction of produced C-14 assumed to be released in gaseous form based on site-specific values or values recommended by Reference' 7.21. [This takes into consideration factors such as disposal of C-14 in solid radwaste.]

FFco2 = fraction of produced C-14 assumed to be released in the gaseous, inorganic form (C02) based on site-specific values or values recommended by Reference 7.21.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 30 of 72 UNITS 1&2 5.11 Alternate Dose Calculations for Gaseous Effluents 5.11.1 Routine Gaseous Effluent Dose Assessment

a. For routine gaseous effluent dose assessment, PERFORM calculations as described in Section 5.10.1. (These methods are based on NU REG 0133.)

5.11.2 New Pathway or Critical Receptor

a. IF necessary to evaluate a new gaseous effluent dose pathway, a new critical receptor, or for another special purpose THEN the calculations described in Regulatory Guide 1.109 or the GASPAR computer code may be used.

5.12 Gaseous Effluent Dose Projections 5.12.1 Implementation NOTE: The purpose of dose projections is to determine whether appropriate treatment of gaseous radioactive materials in relation to maintaining releases "as low as reasonably achievable" is necessary.

a. At least once every 31 days, REFER TO Section 5.18 and calculate the
  • projected gaseous effluent dose contribution for each unit for the current calendar month, quarter, and year.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 31of72 UNITS 1&2 5.13 Noble Gas Release Rate Limit and Expected Reading Calculations 5.13.1 GRW Batch Release Noble Gas Percent Release Rate Limits (PRRLs)

a. Calculate the PRRL for noble gas releases for each unit based on the 500 mrem/yr whole body dose rate limit as shown in eq 24:

WaL(~K;O;) .

0 PRRL = ( )( )x100Yo (eq 24 0.48 500 mrem I yr Where:

~;a)Max = maximum site boundary dispersion factor from Attachment 2, based on 5-year historical averages derived from the meteorological database Ki= whole body dose factor (mrem/yr per µCi/m 3 ) for radionuClide "i" from Attachment 3 Qi = total release rate of radionuclide "i" (µCi/sec) from all sources discharged through this release point 0.48 =plant vent allocation factor for one unit from Table 2 500 mrem/yr = site noble gas dose rate limit CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 32of72 UNITS 1&2 5.13.2 Noble Gas GRW Batch Release Expected Reading (ER).

a. IF the ER exceeds the existing HASP setting, THEN PERFORM one of the following before permitting the release:.
1. Raise the HASP above the ER (per CY2.DC1 ).
2. Ensure the release conditions (e.g., flowrate) are changed so that the ER is below the HASP.
b. Calculate the ER for RE-22 as shown in eq 25:

ERRE-22 = BKGDRE-22 + LkRE-22iCRE-22i (eq 25)

. i Where:

ERRE-22 =expected reading on monitor RE-22 (µCi/cc)

BKGDRE-22 = RE-22 background kRE-22i = RE-22 response factor for radior:iuclide "i" CRE-22i = concentration of radionuclide "i" exposed to RE-22

c. Calculate the ER for RE-44A/RE-44B as shown in eq 26:

ERRE-44 = BKGDRE-44 +(CCSPRE-44)LkRE-44icRE-44i (eq 26) i Where:

ERRE-44= expected reading on monitor RE-44 (µCi/cc)

BKGDRE-44 = RE-44 background CCSPRE-44 = conversion constant setpoint for RE-44 kRE-44i = RE-44 response factor for radionuclide "i" CRE-44i = concentration of radionuclide "i" exposed to RE-44 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 33 of 72 UNITS 1&2

d. Calculate the ER for RE-14/RE-14R as shown in eq 27:

Where:

ERRE-14= expected reading on monitor RE-14 (µCi/cc)

BKGDRE-14 = RE-14 background CCSPRE- 14 = conversion constant setpoint for RE-14 kRE-14i = RE-14 response factor for radionuclide "i" CRE-14i =concentration of radionuclide "i" exposed to RE-14 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 34of72 UNITS 1&2 5.14 Airborne Iodine. Particulate. and Tritium Release Rate Limit Calculation 5.14.1 GRW Batch Release Iodine, Particulate, Tritium PRRL NOTE 1: The PRRL for radioiodines, particulates, and tritium for each unit is calculated based on the 1500 mrem/yr organ dose rate limit.

NOTE 2: Site-specific dose factors are calculated based on NU REG 0133.

All dose conversion factors are taken from Reg. Guide 1.109, Rev 1, Tables E6-E14, except H-3, Sb-124 and Sb-125 dose conversion factors that are from NUREG/CR-4013.

a. Calculate the dose rate for the inhalation pathway for the child age group using the highest (worst case) organ dose factor for nuclide as shown in eq 28.

~/OLax L piw Qi PRRL0 = ( )( i (100% (eq 28) 0.48 1500mrem I yr Where:

~;a)Max = maximum site boundary dispersion factor from Attachment 2, based on 5 year historical averages derived from the meteorological database piw = inhalation dose factor for radionuclide "i" (mrem/yr per µCi/m 3 ) from Attachment 4 for child age group for worst case organ Qi = release rate of radionuclide "i" (µCi/sec) 0.48 =plant vent allocation factor for one unit from Table 2 1500 mrem/yr = site radioiodine, particulate, and tritium dose rate limit CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 35 of 72 UNITS 1&2 5.15 Gaseous Effluent Radiation Monitor Setpoint Calculations 5.15.1 General

a. Ensure that gaseous effluent monitor setpoints take into account appropriate factors for dilution or dispersion of radioactive materials that may occur between the point of discharge and the unrestricted area boundary.

NOTE: The high alarm setpoint (HASP) should also be the maximum operational setpoint.

b. Ensure that each gaseous effluent monitor setpoint provided to Operations is less than or equal to the HASP calculated in this section.
c. Ensure that gaseous effluent monitor setpoint reviews and calculations are performed and documented as described in CY2.DC1, "Radiation Monitor System High Alarm Setpoint Control Program."
d. WHEN alarm setpoints for RE-14/14R are changed, THEN notify Emergency Planning personnel to evaluate the change vs. applicable EAL threshold values in Emergency Plan Appendix D, "Emergency Action Level Technical Basis Manual," per OM10.102, "Emergency Plan Revision and Review."

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 36 of 72 UNITS 1&2 5.15.2 Allocation Factors NOTE: DCPPs annual dose rate limits for noble gases'and radioiodines at or beyond the site boundary are identified in CY2.ID1.

To ensure compliance, rad monitor alarm setpoint calculations are configured to ensure that the sum of the offsite dose rates resulting from simultaneous releases at the respective alarm setpoints is less than the applicable annual rate limit(s).

a. Use the allocation factors (AFs) in the DCPP high alarm setpoint (HASP) calculations with the following restrictions:
1. The sum of the AFs for RE-14 (plant vent noble gas monitor), the SGBD tank vents, and miscellaneous gaseous release points from both units should be less than or equal to 1.
2. AFs for RE-22 (waste gas decay tanks) and RE-44 (containment purge) may be adjusted based on operational requirements virith the restriction that the sum of the AFs for RE-22 and RE-44 should be less than or equal_ to the AF for RE-14.
3. Set the AFs for RE-24 (plant vent iodine monitor) and RE-28 (plant vent particulate monitor) both equal to the AF for RE"14.

Table 2: Typical Gaseous Effluent Discharge Pathway Allocation Factors For Unit 1 or Unit 2 Discharge Pathway Radiation Monitor Allocation Factor (AF)

Plant Vent - Noble gas monitor RE-14 0.48 Plant Vent - Iodine monitor RE-24 0.48 Plant Vent - Particulate monitor RE-28 0.48 Waste Gas Decay Tank RE-22 0.10 Containment Purge RE-44 0.38 SGBD Tank Vent N/A 0.01 Miscellaneous N/A 0.01 5.15.3 Safety Factor

a. Use a safety factor in HASP calculations to ensure the setpoint used by Operations is conservative.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 37of72 UNITS 1&2 5.15.4 Plant Vent Noble Gas RE-14/RE-14R HASP Calculation NOTE: The HASP provides alarm function only. However, when RE-14 reaches an over-range condition, its processor will turn off RE-14 and turn on RE-87 (plant vent high range noble gas monitor). RE-14R does not have this over-range feature.

a. Assume that the total body dose rate limit is most limiting, and calculate the HASP for RE-14/RE-14R using eq 29 :

14 5 MaxCT(NG) = (AF) (SF) ( 00 ) (eq 29)

(472)(Fpv )(x/O)Max (294)

Where:

14 MaxcT(NG) = maximum allowable total concentration of noble gas in the plant vent (µCi/cc)

AF= plant vent allocation factor for one unit from Table 2 SF = safety factor (0.9) 500 = site total body dose rate limit for instantaneous releases (mrem/yr) 472 =conversion constant to cc/sec from cfm Fpv= total flowrate in the plant vent (cfm) [Maximum plant vent flowrate = 263,000 cfm]

~/O)Max = maximum site boundary dispersion factor from Attachment 2 294 = whole body dose factor (mrem/yr per µCi/m3 ) for Xe-133 from Attachment 3 [For plantvent HASP, release is assumed to be all Xe-133.]

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 38 of 72 UNITS 1&2 5.15.5 Plant Vent Noble Gas RE-14/RE-14R Scaling Calculation

a. Based on correlation of RE-14 readings to noble gas concentration during periods between samplings, scale the concentration of noble gas as shown in /

eq 30:

CPMr Cr= xC 8 (eq 30)

CPM 8

\ Where:

CPMr= RE-14 time weighted arithmetic mean (cpm)

CPM8 =RE-14 gross count rate at the time of sampling (cpm)

Cs= noble gas concentration corresponding to CPM 8 , based on noble gas grab sample (µCi/cc)

  • Cr= scaled concentration of noble gas (µCi/cc)

CAP_A-8u3r38.DOC 0405.0847 l

Off-Site Dose Calculations CAP A-8 R38 Page 39of72 UNITS 1&2 5.15.6 Plant Vent Iodine RE-24/RE-24R HASP Calculation NOTE: The eq 31 calculation assumes RE-24/24R respond only to 1-131 as found in standard reactor coolant.

a. Calculate the RE-24/RE-24R HASP as shown in eq 31, eq 32, and eq 33:

1500 24 MaxCr(I) = (AF)(SF) (f1_131 ) (eq 31)

Where:

24 Maxcr(I) = maximum allowable 1-131 concentration in the plant vent

(µCi/cc)

AF= plant vent allocation factor for one unit from Table 2 SF= safety factor (0.9) f1-131 =fraction of the total non-noble gas concentration due to 1-131 c

defined as: ~ (eq 32)

Lei i

1500 = site organ dose rate limit for 1-131, for 1-133, for tritium, and for all radioactive materials in particulate form with half-lives greater than 8 days (mrem/yr) 472 =conversion constant to cc/sec from cfm Fpv= total flowrate in the plant vent (cfm) (maximum plant vent flowrate = 263,000 cfm)

~;a tax =maximum site boundary dispersion factor from Attachment 2.

piw = inhalation dose factor for radionuclide "i" (mrem/yr per µCi/m 3) from Attachment 4 for child age group for worst case organ.

Refer to step 2.11 for bases of Attachment 4 values.*

fi =fraction of total non-noble gas concentration (excluding tritium) due to radionuclide "i" defined as:

Leic. (eq 33)

I .

i CAP_A-8u3r3B.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 40of72 UNITS 1&2

. 5.15.7 Plant Vent Particulate RE-28/RE-28R HASP Calculation

a. Assume RCS source term, and calculate the RE-28/RE-28R HASP as shown in eq 34 (and eq 35):

1500 28 MaxCr(Part) = (AF)(SF) ( (0.05) L flodines + L fParticulates ) -----------,(--~) (eq 34)

Iodines Particulates ) (F ) 1-:-./0) """' w (472 pv IX Max ~pi fi Where:

28 MaxCr(Part) = maximum allowable particulate concentration in plant vent

(µCi/cc)

AF= plant vent allocation factor for one unit from Table 2 SF = safety factor (0.9) 0.05 =fraction of total iodine activity retained on the particulate filter (cross-talk) f Iodines= fraction of the total non-noble gas concentration due to iodines J

f Particulates= fraction of total non-noble gas concentration due to particulates 1500 =Site organ dose rate limit for 1-131, 1-133, tritium, and all particulate radioactive materials with half-lives greater than 8 days (mrem/yr) 472 =conversion constant to cc/sec from cfm Fpv= total flow in plant vent (cfm) [Max plant vent flow= 263,000 cfm]

~/o1ax = maximum site boundary dispersion factor from Attachment 2 piw = inhalation dose factor for radionuclide "i" (mrem/yr per µCi/m 3 ) from Attachment 4 for child age group for worst case organ.

Refer to step 2.11 for bases of Attach merit 4 values.

fi =fraction of total non-noble gas concentration (excluding tritium) due to radionuclide "i" defined as: .;i (eq 35)

Lici i

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 41of72 UNITS 1&2 5.15.8 Waste Gas Decay Tank RE-22 HASP Calculation NOTE: Radiation monitor RE-22 monitors waste gas' decay tank (GOT) effluent releases and provides alarm and automatic release termination functions.

a. Assuming the skin dose rate limit is most limiting, calculate the HASP for RE-22 as shown in eq 36:

22 3 MaxCT(NG) - (AF) (SF) [ . 000 ) (e 36)

- (472)(F9dt)~/aLax(1.34x10 3 ) q Where:

22 MaxcT(NG) = maximum allowable total concentration of noble

. gas in the GOT exhaust line (µCi/cc)

AF = GOT allocation factor for one unit from Table 2 SF = safety factor (0.9) 3000 = site skin dose rate limit for instantaneous releases (mrem/yr) 472 =conversion constant to cc/sec from cfm F9d1 = maxfmum flowrate for the GOT system (31 cfm)

~;a)Max = maximum site-boundary dispersion factor from Attachment 2 1.34x103 = skin dose factor for Kr-85 (mrem/yr per µCi/m 3 ) from Attachment 3 CAP_A-8u3r38.DOC 0405.0847

I Off-Site Dose Calculations CAP A-8 R38 Page 42of72 UNITS 1&2 5.15.9 Containment Purge Exhaust RE-44A/RE-44B HASP Calculation NOTE 1: RE-44A/B monitor containment purge releases and provides alarm and automatic release termination functions.

NOTE 2: The RE-44 HASP calculation is based on noble gas effluent limits and bounds the TS limit for particulate activity in Mode 6.

\

NOTE 3: The FSAR expected~case accident for Mode 6 is a containment fuel handling accident without particulate release. Because it is based on noble gas limits, the RE-44 HASP conservatively satisfies the TS. Ret 7*7

a. Use the more limiting of two RE-44A/B HASP setpoints calculated by eq 40 and eq 41 to limit noble gas dose rate for skin and total body exposure.
b. Calculate RE-44A/B Limiting Concentration Based on Total Body Dose as shown in eq 37 (and eq 38):

44AJBMaxCT(NG) = (AF) (SF) ( 500 (472) (Fct) ~;a tax ~Kifi) J (eq 37)

Where:

44AJBMaxcT(NG) = maximum allowable noble gas concentration in containment purge exhaust line (µCi/cc)

AF= containment purge allocation factor for one unit from Table 2 SF = safety factor (0.9) 500 = site instantaneous release total body dose rate limit (mrem/yr) 472 =conversion constant to cc/sec from cfm Fc1 = maximum flowrate in the containment purge system

[Maximum containment purge flowrate = 55,000 cfm]

~;a1ax = dispersion factor for site boundary from Attachment 2 Ki= whole body dose factor (mrem/yr per µCi/m 3)for radionuclide "i" from Attachment 3 fi = fraction of concentration of the individual noble gas radionuclide "i" in total mix of noble gas effluents in containment purge line defined c.

as:~ (eq38)

.L.Jci i

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 43 of 72 UNITS 1&2

1. GO TO step 5.15.9c and calculate eq 39 for comparison.

CAUTION: Skin dose should be calculated whenever the current RCS sample contains a significant fraction of Kr-85.

c. Calculate the RE-44A/B Limiting Concentration Based on Skin Dose as shown in eq 39 (and eq 40):

44 3000 AIBMaxCT(NG) = (AF) (SF) (eq 39)

Where:

44 AJBMaxcT(NG) = maximum allowable total concentration of noble gas in the plant vent (µCi/cc)

AF = containment purge allocation factor for one unit from Table 2 SF = safety factor (0.9).

3000 = site skin dose rate limit for instantaneous releases (mrem/yr) 472 =conversion constant to cc/sec from cfm Fci= total flowrate in the containment purge system (cfm)

[Maximum containment purge flowrate = 55,000 cfm]

~/a1ax = dispersion factor for site boundary from Attachment 2 Li= skin dose factor (mrem/yr per µCi/m 3 ) for isotope "i" from Attachment 3 1.1 = conversion factor mrem/mrad; converts air dose to skin dose M= gamma air dose factor (mrad/yr per µCi/m 3) for radionuclide "i" from Attachment 3 fi =fraction of concentration of individual noble gas radionuclide "i" in total mix of noble gas effluents in containment purge line defined c.

as:~ (eq40)

~Ci

d. Document the lesser of the results of eq 37 and eq 39 as the limiting.

concentration for the RE-44A/B HASP.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 44 of 72 UNITS 1&2 5.16 40 CFR 190 Nuclear Fuel Cycle Dose Calculations (Direct. Gas. Liquid, & Airborne) 5.16.1 Dose from Nuclear Fuel Cycle

a. Calculate the sum of the doses to members of the public from the following:
1. Direct radiation
2. Liquid effluents
3. Noble gas
4. Airborne radioiodines, tritium, particulates, and C-14
b. Ensure that the dose equivalent to any member of the public from planned discharges of radioactive materials to the environment and to radiation from DCPP operation do not exceed the following limits:
  • 25 millirem to the whole body
  • 75 millirem to the thyroid
  • 25 millirem to any other organ CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 45of72 UNITS 1&2 NOTE: Direct radiation dose from outside storage tanks, storage buildings, and the ISFSI is typically calculated from area TLD data. It may also be calculated using direct survey measurements or using shielding code.

5.16.2 Direct Radiation Dose Calculation

a. Ensure that direct radiation dose calculation is performed for appropriate receptor location(s) near the site including occupancy factor(s) based on land use census information.
b. Calculate dose to the chosen receptor location from direct radiation using environmental TLD data as shown in eq 41 (and eq 42):

D'receptor= 0 receptor ( - radj-2 J (o'ro )(s)(e -µoxrreceptor) (eq 41) 4117 I rreceptor Where:

D'receptor = dose rate at the receptor location (mrem)

I Oreceptor = occupancy factor for receptor at location D'ro = dose rate from the dosimetry reading (mrem) radi =distance from the point source to the dosimetry (m) rreceptor = distance from the point source to receptor location (m)

B =buildup factor= 1+(µ 5 )~receptor l(µa;;s) (eq 42) 4117 I Where:

µa= total absorption coefficient

- 2

= O.OO 1x e(1.34 - (0.105 x ( In (1 ox E) -1.57) )) x (2730 k/T° k)

µ 5 = total Compton scatter coefficient

- 2

= 0.00 1x e(3.1 o - (0.089 x (In (10xE)+1.89) )) x (2730 k/Tok)

µ 0 =total attenuation coefficient= µa+ µ 5 E =effective avg gamma energy per disintegration (MeV)

T 0 k = average absolute temperature (Kelvin)

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 46of72 UNITS 1&2 5.16.3 Liquid and Gaseous Effluent Dose

a. Calculate doses as follows:
  • Dose from liquid effluents per eq 1
  • Dose from radioiodines, tritium, and particulates in gaseous effluents per eq 21
b. WHEN calculating the dose required by the radiological effluent controls, THEN use realistic assumptions for the liquid and gaseous effluent dose pathways that are based on the most recent land use census data and the current environmental monitoring information.
1. WHEN they affect dose to the receptor, THEN use any or all of the following:
  • More realistic liquid dilution factors
  • Location and age of actual individuals
  • Site-specific food pathway parameters
  • Documentation of true food consumption
  • Other assumptions provided they are substantiated by census or direct measurement.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 47 of 72 UNITS 1&2 5.16.4 Noble Gas Dose

a. Calculate the noble gas total body dose and noble gas skin dose contributions to the total uranium fuel cycle dose for a member of the public as shown in eq 43 and eq 44, respectively:

Noble gas total body dose= (3.17x10-s)~;a1 ( ~Kiai) (eq 43)

Noble gas skin dose= (3.17x10-s)~;a1 (~(Li +1.1MJai) (eq 44)

Where:

3 .17x10-8 = conversion constant yr/sec

~;a1 1

= maximu m historical dispersion factor for the receptor of interest from Attachment 2, based on 5 year historical averages derived from the meteorological database Ki= whole body dose factor for radionucilide "i" (mrem/yr per µCi/m 3 )

from Attachment 3 Li= skin dose factor for radionuclide "i" (mrem/yr per µCi/m 3 ) from Attachment 3 1.1 =conversion factor mrem/mrad; converts air dose to skin dose M= gamma air dose factor for radionuclide "i" (mrad/yr per µCi/m3 )

from Attachment 3 Qi = total release of noble gas radionuclide "i" (µCi/sec)

CAP_A-Bu3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 48 of 72 UNITS 1&2 5.17 On-Site Dose to Members of the Public 5.17 .1 Access to the Site NOTE: Members of the 1:>ublic have historically been granted access within the site boundary only up to the protected area boundary. However, docent-led tours do include a short visit to the turbine deck.

a. Ensure that the most common public access activities are addressed. For example:
  • Docent-led tours
  • Law enforcement using the shooting range
  • Cattle drives on adjacent properties 5.17 .2
  • On-Site Locations
a. Ensure that Table 3 reflects the typical activities of the members of the public while on-site (as described in step 5.17 .1 ).

Table 3: Expected On-Site Distances and Visitation Times for Members of the Public Average Expected On-Site Member Sector of Closest Point of Visitation of the Public Visitation Approach to the Plant (Time per Year)

Law enforcement SE 700m 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> at shooting range Docent-led tour groups SSE 200m 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> NW 820m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> NNW 1300m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> NNE 840m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Livestock management

  • 910m NE 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> on property near site ENE 230m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> E 215m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> ESE 245m 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />
b. IF visitors (unpaid and not employed by PG&E or a PG&E contractor) other than those shown in Table 3 or those accounted for in Attachment 2 come onsite within 3 miles (5556 m) of the plant consistently during a year, AND their total time in that area is 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or more, THEN ensure that their dose is calculated and the result reported in the Annual Radioactive Effluent Release Report.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 49 of 72 UNITS 1&2 5.17 .3 Exposure Pathways NOTE: Exposure due to liquid releases while on-site is highly unlikely and therefore not addressed.

a. Ensure that exposure due to gaseous releases and direct radiation are calculated.

5.17.4 Dose Calculations NOTE: Based on Reg. Guide 1.111, modified x/Q and D/Q factors from eq 45 and eq 46, respectively, should provide reasonable dispersion and deposition estimates for distances as close as 200 meters.

a. WHEN necessary to modify the x/O and D/Q values, THEN use logarithmic extrapolation from the site boundary (SB) to the on-site location of interest as shown in eq 45 and eq 46:

log(Ya) ""'

log(fa) -log(fa)

. SB J

( . )Joe (log(dist) 0 n-site-log(dist)s 8 )+log(Ya) (eq45) on-site [ log(d1st)s 8 -log dist Joe . SB log(%) -log(%) J(log(dist) n-site-log(dist)

.log(D1 ) ""' .Oss ( ?)oe IC0 on-site [ log(d1st) 88 -log dist Joe 0 88 )+log~IQ)

IC SB (eq 46)

NOTE: A distance of 200 meters from the plant (both units) equidistant from the

. plant vent is arbitrarily selected as the closest perimeter for which on-site doses will be calculated ..

b. Determine direct radiation dose from the reactor units and from outside storage tanks, storage building, and the ISFSI by one of the following methods:
1. Use of direct survey measurements.
2. Derivation from environmental TLD data.
3. Calculation by shielding code.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 50 of 72 UNITS 1&2 NOTE: The 'H in eq 34 considers only the inhalation and ground plane exposure pathways. It also excludes the "infant" age group.

c. Calculate dose to members of the public during on-site activities based on:
1. The duration of the on-site visitation time.
2. Their closest proximity to the plant.
d. For gaseous releases, calculate doses as follows:
1. Noble gas total body dose as shown in eq 43
2. Noble gas skin dose as shown in eq 44
3. Dose from radioiodines, tritium, C-14, and particulates as shown in eq 21 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 51of72 UNITS 1&2 5.18 Dose Projection Calculations 5.18.1 Dose Projection by Unit

a. Calculate the projected dose from each unit per eq 47:

Op = DP,U + 1/2 DP,Com (eq 47)

Where:

Op= projected dose DP,u =projected dose attributed to reactor unit, U DP.com= projected dose common to both reactor units 5.18.2 31-Day Dose Projection

a. Calculate the 31-day projected dose as shown in eq 48:

PM dCM dCB )

DA OM = 31 + A + p . (eq 48)

P [ T +t Where:

D~ =projected dose for the next 31-day period o~M = previous month's actual dose d~M = current month actual dose to date 8

d~ = projected dose from current batch release T = number of days in the previous month t = number of days into the present month CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 52 of 72 UNITS 1&2 5.18.3 Quarterly Dose Projection

a. Calculate the projected quarterly doses as shown in eq 49:

Where:

D~ 0 = projected dose for the current calendar quarter d~a = current quarter to date actual dose D~0 = previous quarter's actual dose d~ 8 = projected dose from the current batch release

  • T = number of days in the previous quarter t = number of days into the present quarter 5.18.4 Annual Dose Projection
a. Calculate the projected annual doses as shown in eq 50:

dcv des )

DCY = dCY + (366 - t) ( DPY A + A + p (eq 50) p A (T +t)

Where:

D~v = projected dose for the current calendar year d~v =current year to date actual dose D~v = previous year's actual dose d~ 8 = projected dose from the current batch release T = number of days in the previous year t =number of days into the present year CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 53 of 72, UNITS 1&2 5.19 Actions Required for Unplanned Gaseous or Liquid Releases NOTE: For purposes of classification only, unplanned gaseous release puffs through the plant vent may use one hour. integrated resolution times.

5.19.1 Unmonitored and Unplanned Release

a. WHEN an unmonitored, unplanned release of contaminated gas or liquid occurs, THEN PERFORM the following steps:
1. Write a report describing the event with a calculation of the percent of release rate limit listed in CY2.ID1 (if possible). This task is typically performed by the radiochemistry effluents engineer.
2. Forward the report prepared in step 5.19.1 a.1 to the Plant Safety Review Committee (PSRC) for review.
3. Describe the release in the Annual Radioactive Effluent Release Report for the year in which the release occurred.

5.19.2 Monitored and Unplanned Release

a. WHEN a monitored, unplanned gas or liquid release that exceeds 1% of the CY2.ID1 release rate limit occurs, THEN PERFORM the following steps:
1. Write a report describing the event. This task is typically performed by the radiochemistry effluents engineer.
2. Forward the event report prepared in step 5.19.2a.1 to PSRC for review.
3. Describe the release in the Annual Radioactive Effluent Release Report for the year in which the release occurred.

CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 54 of 72 UNITS 1&2

6. RECORDS 6.1
  • Submit the basis documents generated per CAP A-8 for the following to the Records Management System (RMS) per CY1 .DC1, "Analytical Data Processing Responsibilities":
  • Meteorological parameters
  • Abnormal discharges documentation
  • Determination of release rate and dose parameters methodology
  • Dose projections
7. REFERENCES 7.1 CAP A-5, "Liquid Radwaste Discharge Management" 7.2
  • CAP A-6, "Gaseous Radwaste Sampling and Analysis for Release" 7.3 CAP D-15, "Steam Generator Leak Rate Determination" 7.4 CAP D-19, "Correlation of Rad Monitors of Radioactivity" 7.5 CY2.DC1, "Radiation Monitoring System High Alarm Setpoint Control Program" 7.6 CY2.ID1, "Radioactive Effluent and Controls Program"
7. 7 "Setpoint Calculation for Containment Ventilation Exhaust Monitor," Cale # NSP-1 &2-39-44, 10/92 and 11/92 and Action Request (AR) A043061 O 7.8 AR A0619600, "Rad Effluent Sampling of Ni-63" 7.9 AR A0619601, "Include Tc-99M In ODCM and ARER Reports" 7.10 License Amendment 67/66, January 22, 1992 7 .11 NUREG-0172, "Age-Specific Radiation Dose Commitment Factors for a One-Year Chronic Intake," November 1977 7.12 NUREG 2919, "Computer Code XOQDOQ," Revision 2, September, 1982 7.13 NUREG No. 0133, "Preparation of Radiological Effluent Tech Specs for Nuclear Power Plants," October 1978 7.14 NUREG No. 0543, "Methods for Demonstrating LWR Compliance with the EPA Uranium Fuel Cycle Standard 40 CFR 190," January 1980 7.15 NUREG/CR-4013, "LADTAP II -Technical Reference and User Guide" 7 .16 Regulatory Guide 1.109, "Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10CFR50, Appendix I,"

Rev. 0, March 1976 CAP_A-8u3r38.DOC 0405.0847

Off-Site Dose Calculations CAP A-8 R38 Page 55 of 72 UNITS 1&2 7 .17 Regulatory Guide 1.109, "Calculation of Annual Doses to Man From Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR 50, Appendix I,"

Rev. 1, October 1977 7.18 Regulatory Guide, 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors," Rev. 1, July, 1977 7 .19 Review and Expansion of USN RC Regulatory Guide 1.109 Models for Computing Dose Conversion Factors, F.W. Boone and John M. Palms, Report No. EMP-155, February 1983 7.20 "Radioactive Decay Data Tables," David C. Kocher. DOE/TIC-11026, 1981 7.21 "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents," EPRI Technical Report 1021106, December2010 7.22 Meteorology Services Report Number 420DC-14.9, March 2014 (XOQDOQ data) 7.23 "DRADCALC.xls Computer Program Verification and Validation Report", Revision 0, June 1997 7 .24 Notification 50660141, "Revise CAP A-8 Drawing" 7.25 DCL-14-032, "2013 Annual Radiological Environmental Operating Report" 7.26 SAPN 50624472, "DA-Vac PP Ops - Not Consistent w/FSAR" 7.27 SAPN 50816085, "DA 2014 Rad Efif Rel Report - Corrections" 7.28 1

SAPN 508 93415, "DA-QAAF-ODCM submission. error" 4117 I CAP_A-8u3r38.DOC 04015.0847

CAP A-8 R38 Page 56 of 72 LRW Composite Dose Factors U1&2 Attachment 1: Page 1 of 3 LRW Composite Dose Factors, Aio, for Adults at a Saltwater Site to Organ "o" (mrem/hour per µCi/ml) (1)

Nuclide Tot Body Thyroid Kidney Lung Gl-LLI Bone Liver H-3 1.61 E-01 1.61 E-01 1.61 Ec01 1.61 E-01 1.61 E-01 O.OOE+OO 1.61 E-01 Na-24 4.57E-01 4.57E-01 4.57E-01 4.57E-01 4.57E-01 4.57E-01 4.57E-01 Cr-51 5.58E+OO 3.34E+OO 1.23E+OO 7.40E+OO 1.40E+03 O.OOE+OO O.OOE+OO Mn-54 1.35E+03 O.OOE+OO 2.10E+03 O.OOE+OO 2.16E+04 O.OOE+OO 7.06E+03 Mn-56 3.15E+01 O.OOE+OO 2.26E+02 O.OOE+OO 5.67E+03 O.OOE+OO 1.78E+02 Fe-55 8.23E+03 O.OOE+OO O.OOE+OO 1.97E+04 2.03E+04 5.11 E+04 3.53E+04 Fe-59 7.27E+04 O.OOE+OO O.OOE+OO 5.30E+04 6.32E+05 8.06E+04 1.90E+05 Co-57 2.36E+02 O.OOE+OO O.OOE+OO O.OOE+OO 3.59E+03 O.OOE+OO 1.42E+02 Co-58 1.35E+03 O.OOE+OO O.OOE+OO O.OOE+OO 1.22E+04 O.OOE+OO 6.03E+02 Co-60 3.82E+03 O.OOE+OO O.OOE+OO O.OOE+OO 3.25E+04 O.OOE+OO 1.73E+03 Ni-63 1.67E+03 O.OOE+OO O.OOE+OO O.OOE+OO 7.18E+02 4.96E+04 3.44E+03 Ni-65 1.20E+01 O.OOE+OO O.OOE+OO O.OOE+OO 6.65E+02 2.02E+02 2.62E+01 Cu-64 1.01 E+02 O.OOE+OO 5.40E+02 O.OOE+OO 1.83E+04 O.OOE+OO 2.14E+02 Zn-65 2.32E+05 O.OOE+OO 3.43E+05 O.OOE+OO 3.23E+05 1.61 E+05 5.13E+05 Zn-69 4.56E+01 O.OOE+OO 4.26E+02 O.OOE+OO 9.85E+01 3.43E+02 6.56E+02 As-76 4.42E+01 O.OOE+OO 8.72E+01 O.OOE+OO O.OOE+OO O.OOE+OO 4.62E+01 Br-82 4.07E+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.67E+OO O.OOE+OO O.OOE+OO Br-84 9.39E-02 O.OOE+OO O.OOE+OO O.OOE+OO 7.37E-07 O.OOE+OO O.OOE+OO Rb-86 2.91E+02 O.OOE+OO O.OOE+OO O.OOE+OO 1.23E+02 O.OOE+OO 6.24E+02 Rb-88 9.49E-01 O.OOE+OO O.OOE+OO O.OOE+OO 2.47E-11 O.OOE+OO 1.79E+OO Rb-89+0 8.34E-01 O.OOE+OO O.OOE+OO O.OOE+OO 6.89E-14 O.OOE+OO 1.19E+OO Sr-89+0 1.43E+02 O.OOE+OO O.OOE+OO O.OOE+OO 8.00E+02 4.99E+03 O.OOE+OO Sr-90+0 2.83E+03 O.OOE+OO O.OOE+OO O.OOE+OO 3.55E+03 1.41 E+05 O.OOE+OO Sr-91+0 3.71E+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.37E+02 9.18E+01 O.OOE+OO Sr-92+0 1.51E+OO O.OOE+OO O.OOE+OO O.OOE+OO 6.90E+02 3.48E+01 0.00E+OO Y-90 1.63E-01 O.OOE+OO O.OOE+OO O.OOE+OO 6.42E+04 6.06E+OO O.OOE+OO Y-91m+D 2.22E-03 O.OOE+OO O.OOE+OO O.OOE+OO 1.68E-01 5.73E-02 O.OOE+OO Y-92 1.56E-02 O.OOE+OO O.OOE+OO O.OOE+OO 9.32E+03 5.32E-01 O.OOE+OO (1) Dose factors are based on NUREG 0133 methoddlogy.

CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 57 of 72 LRW Composite Dose Factors U1&2 Attachment 1 : Page 2 of 3 LRW Composite Dose Factors, Ai 0 , for Adults at a Saltwater Site to Organ "o" (mrem/hour per µCi/ml) (1)

Nuclide Tot Body Thyroid Kidney Lung Gl-LLI Bone Liver Zr-95+0 3.46E+OO O.OOE+OO 8.02E+OO O.OOE+OO 1.62E+04 1.59E+01 5.11 E+OO Zr-97+0 8.13E-02 O.OOE+OO 2.68E-01 O.OOE+OO 5.51 E+04 8.81 E-01 1.78E-01 Nb-95 1.34E+02 O.OOE+OO 2.46E+02 O.OOE+OO 1.51 E+06 4.47E+02 2.49E+02 Mo-99+0 2.43E+01 O.OOE+OO 2.89E+02 O.OOE+OO 2.96E+02 O.OOE+OO 1.28E+02 Tc-101 1.88E-01 O.OOE+OO 3.46E-01 9.81 E-03 5.77E-14 1.33E-02 1.92E-02 Ru-103+0 4.60E+01 O.OOE+OO 4.07E+02 O.OOE+OO 1.25E+04 1.07E+02 O.OOE+OO Ru-105+0 3.51 E+OO O.OOE+OO 1.15E+02 O.OOE+OO 5.44E+03 8.89E+OO O.OOE+OO Ru-106+0 2.01 E+02 O.OOE+OO 3.06E+03 O.OOE+OO 1.03E+05 1.59E+03 O.OOE+OO Ag-110m+D 8.60E+02 O.OOE+OO 2.'85E+03 O.OOE+OO 5.91 E+05 1.56E+03 1.45E+03 Sn-113 3.53E+03 9.85E+02 O.OOE+OO O.OOE+OO O.OOE+OO 6.06E+04 1.66E+03 Sn-117m 8.76E+02 2.52E+02 O.OOE+OO O.OOE+OO O.OOE+OO 3.02E+03 3.41 E+02 Sb-122 6.65E+OO 3.09E-01 O.OOE+OO 1.18E+01 O.OOE+OO 2.19E+01 4.47E-01 Sb-124 1.09E+02 6.70E-01 O.OOE+OO 2.15E+02 7.84E+03 2.76E+02 5.22E+OO Sb-125 4.20E+01 1.79E-01 O.OOE+OO 1.36E+02 1.94E+03 1.77E+02 1.97E+OO Te-125m 2.91 E+01 6.51 E+01 8.82E+02 O.OOE+OO 8.66E+02 2.17E+02 7.86E+01 Te-129m+D 1.47E+02 3.20E+02 3.89E+03 O.OOE+OO 4.69E+03 9.31 E+02 3.47E+02 Te-129 6.19E-01 1.95E+OO 1.07E+01 O.OOE+OO 1.92E+OO 2.54E+OO 9.55E-01 Te-131 m+D 5.71 E+01 1.08E+02 6.94E+02 O.OOE+OO 6.80E+03 1.40E+02 6.85E+01 Te-131+0 5.03E-01 1.31E+OO 6.99E+OO O.OOE+OO 2.26E-01 1.59E+OO 6.66E-01 Te-132+0 1.24E+02 1.46E+02 1.27E+03 O.OOE+OO 6.24E+03 2.04E+02 1.32E+02 1-131+0 1.79E+02 1.02E+05 5.35E+02 O.OOE+OO 8.23E+01 2.18E+02 3.12E+02 1-132 9.96E+OO 9.96E+02 4.54E+01 O.OOE+OO 5.35E+OO 1.06E+01 2.85E+01 1-133+0 3.95E+01 1.90E+04 2.26E+02 O.OOE+OO 1.16E+02 7.45E+01 1.30E+02 1-134 5.40E+OO 2.62E+02 2.40E+01 O.OOE+OO 1.32E-02 5.56E+OO 1.51 E+01 1-135+0 2.24E+01 4.01 E+03 9.75E+01 O.OOE+OO 6.87E+01 2.32E+01 6.08E+01 Cs-134 1.33E+04 O.OOE+OO 5.27E+03 1.75E+03 2.85E+02 6.84E+03 1.63E+04 Cs-136 2.04E+03 O.OOE+OO 1.57E+03 2.16E+02 3.21 E+02 7.16E+02 2.83E+03 Cs-137+0 7.85E+03 O.OOE+OO 4.07E+03 1.35E+03 2.32E+02 8.77E+03 1.20E+04 Cs-138 5.94E+OO O.OOE+OO 8.81 E+OO 8.70E-01 5.12E-05 6.07E+OO 1.20E+01 (1) Dose factors are based on NU REG 0133 methodology.

I CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 58of72 LRW Composite Dose Factors U1&2 Attachment 1: Page 3 of 3 LRW Composite Dose Factors, Ai 0 , for Adults at a Saltwater Site to Organ "o" (mrem/hour per µCi/ml) (1)

Nuclide Tot Body Thyroid Kidney Lung Gl-LLI Bone Liver Ba-139 2.30E-01 O.OOE+OO 5.23E-03 3.17E-03 1.39E+01 7.85E+OO 5.59E-03 Ba-140+0 1.08E+02 O.OOE+OO 7.02E-01 1.18E+OO 3.38E+03 1.64E+03 2.06E+OO Ba-141+0 1.29E-01 O.OOE+OO 2.68E-03 1.63E-03 1.80E-09 3.81 E+OO 2.88E-03 La-140 2.1 OE-01 O.OOE+OO O.OOE+OO O.OOE+OO 5.83E+04 1.57E+OO 7.94E-01 La-142 9.13E-03 O.OOE+OO O.OOE+OO O.OOE+OO 2.68E+02 8.06E-02 3.67E-02 Ce-141 2.63E-01 O.OOE+OO 1.08E+OO O.OOE+OO 8.86E+03 3.43E+OO 2.32E+OO Ce-143+0 4.94E-02 O.OOE+OO 1.97E-01 O.OOE+OO 1.67E+04 6.04E-01 4.46E+02 Ce-144+0 9.59E+OO O.OOE+OO 4.43E+01 O.OOE+OO 6.04E+04 1.79E+02 7.47E+01 Pr-144 9.64E-04 O.OOE+OO 4.44E-03 O.OOE+OO 2.73E-09 1.90E-02 7.87E-03 Nd-147+0 2.74E-01 O.OOE+OO 2.68E+OO O.OOE+OO 2.20E+04 3.96E+OO 4.58E+OO Pu-238 2.07E+03 O.OOE+OO 8.87E+03 O.OOE+OO 8.85E+03 7.62E+04 9.66E+03 Pu-239 2.31 E+03 O.OOE+OO 9.83E+03 O.OOE+OO 8.07E+03 8.79E+04 1.06E+04 Pu-240 2.31 E+03 O.OOE+OO 9.82E+03 O.OOE+OO 8.23E+03 8.76E+04 1.05E+04 Pu-241+0 4.01 E+01 O.OOE+OO 1.85E+02 O.OOE+OO 1.70E+02 1.90E+03 9.03E+01 Pu-242 2.23E+03 O.OOE+OO 9.46E+03 O.OOE+OO 7.91 E+03 8.13E+04 1.02E+04 U-233+0 1.56E+03 O.OOE+OO 6.02E+03 O.OOE+OO 1.86E+03 2.58E+04 O.OOE+OO U-234* 1.53E+03 O.OOE+OO 5.90E+03 O.OOE+OO 1.82E+03 2.48E+04 O.OOE+OO U-235+0 1.44E+03 O.OOE+OO 5.54E+03 O.OOE+OO 2.31E+03 2.37E+04 O.OOE+OO U-236 1.47E+03 O.OOE+OO 5.66E+03 O.OOE+OO 1.71 E+03 2.37E+04 O.OOE+OO U-238+0 1.35E+03 O.OOE+OO 5.19E+03 O.OOE+OO 1.63E+03 2.27E+04 O.OOE+OO W-187 2.68E+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.51 E+03 9.16E+OO 7.66E+OO Np-239 1.91 E-03 O.OOE+OO 1.08E-02 O.OOE+OO 7.11 E+02 3.53E-02 3.47E-03 (1) Dose factors are based on NUREG 0133 methodology.

CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 59 of 72 Current Dose Receptor Information U1&2 Attachment 2: Page 1 of 2 Occupancy Occupancy Receptor Distance (Inhalation D/Q x Sector X/Q XfQ X 01nhGP D/Q (Ingestion, Comments Description (meters) and Ground 01ng 01ng)

Plane, 01nhGP)

Site N 815 2.4E-6 N/A N/A 4.7E-9 N/A N/A No consistent occupancy Boundary Cabin - partial occupancy NNE Residence 5190 1.1 E-7 0.3 3.3E-8 1.6E-10 N/A N/A

((4X(10/30))+((2/7}X8)/30}/2 NE Residence 7950 3.8E-08 1.0 3.8E-8 6.1E-11 N/A N/A Full-time occupancy ENE Residence 7170 4.0E-08 1.0 4.0E-8 8.0E-11 N/A N/A Full-time occupancy Residence+

Partial occupancy garden <500 6011 7.2E-08 0.6 4.4E-8 1.9E-10 N/A N/A (4 days/week all year) sq ft E

Full-time occupancy Residenc~ +

7430 5.2E-08 1.0 5.2E-8 1.3E-10 1.0 1.3E-10 Inhalation + Ground Plane+

garden Ingestion Critical Recegtor

/17 Oat hay ESE 6540 1.9E-07 N/A N/A 9.3E-10 N/A N/A No consistent occupancy farming Ocean ',

Partial occupancy SE Fishermen at 4990 3.9E-7 0.06 2.3E-8 2.8E-9 N/A N/A (Est. 4 hrs/day 4 mos/year)

Pecha Rock Ocean-Exclusion Ocean-SSE 2345 3.7E-7 N/A N/A 2.4E-9 N/A N/A Zone No consistent occupancy Boundary Ocean- --

Exclusion Ocean-s Zone 2470 2.8E-7 N/A N/A 7.1E-10 N/A N/A No consistent occupancy Boundary Ocean-Exclusion Ocean-SSW 2455 2.9E-7 N/A N/A 7.3E-10 N/A N/A Zone No consistent occupancy Boundary CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 60of72 Current Dose Receptor Information U1&2 Attachment 2: Page 2 of 2 Occupancy Occupancy Receptor Distance (Inhalation D/Q x Sector X/Q X/Q X 01nhGP D/Q (Ingestion, Comments Description (meters) and Ground 01ng 01ng)

Plane, 01nhGP)

Ocean-Exclusion Ocean-SW 2325 3.7E-7 N/A N/A 1.2E-9 N/A N/A Zone No consistent occupancy Boundary Ocean-Exclusion Ocean-w Zone 1830 6.2E~7 N/A N/A 1.1 E-9 N/A N/A No consistent occupancy Boundary Ocean-Exclusion Ocean-WNW 1572 1.3E-6 N/A N/A 2.7E-9 N/A N/A Zone No consistent occupancy 4/17 Boundary Highest site Gas effluent dose rates, boundary 803 6.9E-06 N/A N/A 1.6E-08 N/A N/A PRRLs, and HASPs dispersion evaluated at this location.

NW value 5 days/week all year Residence 5762 2.9E-07 0.7 2.03E-7 5.5E-10 N/A N/A Inhalation Critical Rece~tor Livestock Partial occupancy NNW Management 2417 7.4E-07 0.1 7.4E-8 1.BE-09 N/A N/A 4 hrs/wk all year.

Trailer CAP_A-8u3r38.DOC 0405.0847 i

CAP A-8 R38 Page 61of72 GRW Dose Parameters: Noble Gas Dose Factors U1&2 Attachment 3: Page 1 of 1 GRW Dose Factors for Noble Gases (mrem/yr per µCi/m 3 ) (1)

Whole Body Gamma Air Beta Air Radionuclide Skin Dose Factor, Li Dose Factor, Ki Dose Factor, M Dose Factor, Ni Kr-83m 7.56E-02 ---- 1.93E+01 2.88E+02 Kr-85m 1.17E+03 1.46E+03 1.23E+03 1.97E+03 Kr-85 1.61 E+01 1.34E+03 1.72E+01 1.95E+03 Kr-87 5.92E+03 9.73E+03 6.17E+03 1.03E+04 Kr-88 1.47E+04 2.37E+03 1.52E+04 2.93E+03 Kr-89 1.66E+04 1.01 E+04 1.73E+04 1.06E+04 Kr-90 1.56E+04 7.29E+03 1.63E+04 7.83E+03 Xe-131m 9.15E+01 4.76E+02 1.56E+02 1.11 E+03 Xe-133m 2.51 E+02 9.94E+02 3.27E+02 1.48E+03 Xe-133 2.94E+02 3.06E+02 3.53E+02 1.05E+03 Xe-135m 3.12E+03 7.11E+02 3.36E+03 7.39E+02 Xe-135 1.81 E+03 1.86E+03 1.92E+03 2.46E+03 Xe-137 1.42E+03 1.22E+04 1.51 E+03 1.27E+04 Xe-138 8.83E+03 4.13E+03 9.21 E+03 4.75E+03 Ar-41 8.84E+03 2.69E+03 9.30E+03 3.28E+03 (1) From Table B-1 of Regulatory Guide 1.109 (Rev. 1, Oct. 1977)

CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 62 of 72 GRW Dose Parameters: Child, Inhalation, Worst Case Organ U1&2 Attachment 4: Page 1 of 1 Child Inhalation Pathway Dose Factors for Worst Case Organ Radionuclide Pt H-3 6.40E+02 Cr-51 1.70E+04 Mn-54 1.58E+06 Fe-59 1.27E+06 Co-58 1.11 E+06 Co-60 7.07E+06 Zn-65 9.95E+05 Rb-86 1.98E+05 Sr-89 2.16E+06 Y-90 2.68E+05 Sr-90 3.85E+07 Zr-95 2.23E+06 Nb-95 6.14E+05 Ru-103 6.62E+05 Ru-106 1.43E+07 Ag-110M 5.48E+06 Sb-124 3.24E+06 Sb-125 2.32E+06 Te-129M 1.76E+06 1-131 1.62E+07 1-133 3.85E+06 Cs-134 1.01 E+06 Cs-136 1.71 E+05 Cs-137 9.07E+05 Ba-140 1.74E+06 Ce-141 5.44E+05 Ce-144 1.20E+07 Nd-147 3.28E+05 CAP_A-Bu3r38.DOC 0405.0847

CAP A-8 R38 Page 63 of 72 GRW Dose Parameters: Ground Plane Dose Factors U1&2 Attachment 5: Page 1 of 1

' Ground Plan~ Dose Factors GRW Dose Parameters, RGP, for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW),

any Age Group, Ground Plane Pathway (mrem/yr per µCi/(sec m2 (1) Nuclide Bone Liver TBody Thyroid Kidney Lung GI-LU H-3 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO C-14 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Cr-51 4.65E+06 4.65E+06 4.65E+06 4.65E+06 4.65E+06 4.65E+06 4.65E+06 Mn-54 1.38E+D9 1.38E+09 1.38E+09 1.38E+09 1.38E+09 1.38E+09 1.38E+09 Fe-59 2.73E+08 2.73E+08 2.73E+08 2.73E+08 2.73E+08 2.73E+08 2.73E+08 Co-58 3.80E+08 3.80E+08 3.80E+08 3.80E+08 3.80E+08 3.80E+08 3.80E+08 Co-60 2.15E+10 2.15E+10 2.15E+10 2.15E+10 2.15E+10 2.15E+10 2.15E+10 Zn-65 7.46E+08 7.46E+D8 7.46E+08 7.46E+08 7.46E+08 7.46E+08 7.46E+08 Rb-86 8.98E+06 8.98E+06 8.98E+D6 8.98E+06 8.98E+06 8.98E+06 8.98E+06 Sr-89 2.16E+04 2.16E+04 2.16E+04 2.16E+04 2.16E+D4 2.16E+04 2.16E+04 Y-90 4.50E+03 4.50E+03 4.50E+03 4.50E+03 4.50E+03 4.90E+03 4.50E+03 Sr-90 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Zr-95 2.45E+08 2.45E+08 2.45E+D8 2.45E+08 2.45E+08 2.45E+08 2.45E+08 Nb-95 1.37E+08 1.37E+08 1.37E+08 1.37E+08 1.37E+08 1.37E+08 1.37E+08 Ru-103 1.0BE+OB 1.08E+08 1.08E+08 1.08E+08 1.0BE+OB 1.08E+08 1.08E+08 Ru-106 4.2DE+08 4.20E+08 4.20E+08 4.20E+08 4.20E+08 4.20E+08 4.20E+08 Ag-110M 3.45E+09 3.45E+09 3.45E+09 3.45E+09 3.45E+09 3.45E+09 3.45E+09 Sb-124 5.99E+08 5.99E+08 5.99E+08 5.99E+08 5.99E+08 5.99E+08 5.99E+08 Sb-125 2.34E+09 2.34E+09 2.34E+09 2.34E+09 2.34E+09

  • 2.34E+09 2.34E+09 Te-129M 1.98E+07 1.98E+07 1.98E+07 1.98E+07 1.98E+07 1.98E+07 1.98E+07 1-131 1.72E+07 1.72E+07 1.72E+07 1.72E+07 1.72E+07 1.72E+07 1.72E+07 1-133 2.45E+06 2.45E+06 2.45E+06 2.45E+06 2.45E+06 2.45E+06 2.45E+06 Cs-134 6.90E+09 6.90E+09 6.90E+09 6.90E+09 6.90E+09 6.90E+09 6.90E+09 Cs-136 1.51E+08 1.51E+08 1.51 E+08 1.51E+08 1.51 E+08 1.51E+08 1.51E+08 Cs-137 1.03E+10 1.03E+ 10 1.03E+10 1.03E+10 1.03E+10 1.03E+10 1.03E+10 Ba-140 2.05E+07 2.05E+07 2.05E+07 2.05E+07 2.05E+07 2.05E+07 2.05E+07 Ce-141 1.37E+07 1.37E+07 1.37E+07 1.37E+07 1.37E+07 1.37E+07 1.37E+07 Ce-144 6.96E+D7 6.96E+07 6.96E+07 6.96E+D7 6.96E+07 6.96E+07 6.96E+07 Nd-147 8.39E+06 8.39E+06 8.39E+06 8.39E+06 8.39E+06 8.39E+06 8.39E+06 (1) Dose factors are based on NUREG 0133 methodology.
                                                   \,

CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 64of72 GRW Dose Parameters: Infant, Inhalation Pathway U1&2 Attachment 6: Page 1 of 1 

    . GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Infant Age Group, 3

Inhalation Pathway Organ "O" (mrem/yr per µCi/m ) Ri,lnhal (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 O.OOE+OO 3.68E+02 3.68E+02 3.68E+02 3.68E+02 3.68E+02 3.68E+02 C-14 2.65E+04 5.31E+03 5.31E+03 5.31E+03 5.31 E+03 5.31 E+03 5.31 E+03 Cr-51 0.00E+OO O.OOE+OO 8.95E+01 5.75E+01 1.32E+01 1.28E+04 3.57E+02 Mn-54 0.00E+OO 2.53E+04 4.98E+03 0.00E+OO 4.98E+03 1.00E+06 7.06E+03 Fe-59 1.36E+04 2.35E+04 9.48E+03 O.OOE+OO 0.00E+OO 1.02E+06 2.48E+04 Co-58 0.00E+OO 1.22E+03 1.82E+03 O.OOE+OO 0.00E+OO 7.77E+05 1.11 E+04 Co-60 O.OOE+OO 8.02E+03 1.f8E+04 O.OOE+OO .O.OOE+OO 4.51E+06 3.19E+04 Zn-65 1.93E+04 6.26E+04 3.11 E+04 0.00E+OO 3.25E+04 6.47E+05 5.14E+04 Rb-86 O.OOE+OO 1.90E+05 8.82E+04 O.OOE+OO O.OOE+OQ O.OOE+OO 3.04E+03 Sr-89 3.98E+05 0.00E+OO 1.14E+04 O.OOE+OO O.OOE+OO 2.03E+06 6.40E+04 Y-90 3.29E+03 0.00E+OO 8.82E+01 O.OOE+OO O.OOE+OO 2.69E+05 1.04E+05 Sr-90 1.55E+07 O.OOE+OO 3.12E+05 O.OOE+OO O.OOE+OO 1.12E+07 1.31 E+05 Zr-95 1.15E+05 2.79E+04 2.03E+04 O.OOE+OO 3.11 E+04 1.75E+06 2.17E+04 Nb-95 1.57E+04 6.43E+03 3.78E+03 0.00E+OO 4.72E+03 4.79E+05 1.27E+04 Ru-103 2.02E+03 O.OOE+OO 6.79E+02 O.OOE+OO 4.24E+03 5.52E+05 1.61 E+04 Ru-106 8.68E+04 O.OOE+OO 1.09E+04 O.OOE+OO 1.07E+05 1.16E+07 1.64E+05 Ag-110M 9.98E+03 7.22E+03 5.00E+03 0.00E+OO 1.09E+04 3.67E+06 3.30E-1;04 Sb-124 3.79E+04 5.56E+02 1.20E+04 1.01 E+02 O.OOE+OO 2.65E+06 5.91 E+04 Sb-125 5.17E+04 4.77E+02 1.09E+04 6.23E+01 0.00E+OO 1.64E+06 1.47E+04 Te-129M 1.41E+04 6.09E+03 2.23E+03 5.47E+03 3.18E+04 1.68E+06 6.90E+04 1-131 3.79E+04 4.44E+04 1.96E+04 1.48E+07 5.18E+04 0.00E+OO 1.06E+03 1-133 1.32E+04 1.92E+04 5.60E+03 3.56E+06 2.24E+04 0.00E+OO 2.16E+03 Cs-134 3.96E+05 7.03E+05 7.45E+04 0.00E+OO 1.90E+05 7.97E+04 1.33E+03 Cs-136 4.83E+04 1.35E+05 5.29E+04 O.OOE+OO 5.64E+04 1.18E+04 1.43E+03 Cs-137 5.49E+05 6.12E+05 4.55E+04 O.OOE+OO 1.72E+05 7.13E+04 1.33E+03 Ba-140 5.60E+04 5.60E+01 2.90E+03 O.OOE+OO 1.34E+01 1.60E+06 3.84E+04 Ce-141 2.77E+04 1.67E+04 1.99E+03 0.00E+OO 5.25E+03 5.17E+05 2.16E+04 Ce-144 3.19E+06 . 1.21 E+06 1.76E+05 O.OOE+OO 5.38E+05 9.84E+06 1.48E+05 Nd-147 7.94E+03 8.13E+03 5.00E+02 0.00E+OO 3.15E+03 3.22E+05 3.12E+04 (1) Dose fadors are based on NU REG 0133 methodology. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 65 of 72 GRW Dose Parameters: Child, Inhalation Pathway U1&2 Attachment 7: Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Child Age Group, 3 Inhalation Pathway Organ "O" (mrem/yr per µCi/m ) Ri,InhaI (1) Nuclide Bone Liver T Body Thyroid Kidney Lung GI-LU H-3 O.OOE+OO 6.40E+02 6.40E+02 6.40E+02 6.40E+02 6.40E+02 6.40E+02 C-14 3.59E+04 6.73E+03 6.73E+03 6.73E+03 6.73E+03 6.73E+03 6.73E+03 Cr-51 O.OOE+OO O.OOE+OO 1.54E+02 8.55E+01 2.43E+01 1.70E+04 1.08E+03 Mn-54 O.OOE+OO 4.29E+04 9.51 E+03 O.OOE+OO 1.00E+04 1.58E+06 2.29E+04 Fe-59 2.07E+04 3.34E+04 1.67E+04 O.OOE+OO O.OOE+OO 1.27E+06 7.07E+04 Co-58 O.OOE+OO 1.77E+03 3.16E+03 O.OOE+OO O.OOE+OO 1.11 E+06 3.44E+04 Co-60 O.OOE+OO 1.31 E+04 2.26E+04 0.00E+OO O.OOE+OO 7.07E+06 9.62E+04 Zn-65 4.26E+04 1.13E+05 7.03E+04 O.OOE+OO 7.14E+04 9.95E+05 1.63E+04 Rb-86 O.OOE+OO 1.98E+05 1.14E+05 O.OOE+OO O.OOE+OO O.OOE+OO 7.99E+03 Sr-89 5.99E+05 O.OOE+OO 1.72E+04 O.OOE+OO O.OOE+OO 2.16E+06 1.67E+05 Y-90 4.11 E+03 O.OOE+OO 1.11 E+02 O.OOE+OO O.OOE+OO 2.62E+05 2.68E+05 Sr-90 3.85E+07 O.OOE+OO 7.66E+05 0.00E+OO 0.00E+OO 1.48E+07 3.43E+05 Zr-95 1.90E+05 4.18E+04 3.70E+04 0.00E+OO 5.96E+04 2.23E+06 6.11 E+04 Nb-95 2.35E+04 9.18E+03 6.55E+03 0.00E+OO 8.62E+03 6.14E+05 3.70E+04 Ru-103 2.79E+03 0.00E+OO 1.07E+03 0.00E+OO 7.03E+03 6.62E+05 4.48E+04 Ru-106 1.36E+05 O.OOE+OO 1.69E+04 O.OOE+OO 1.84E+05 1.43E+07 4.29E+05 Ag-110M 1.69E+04 1.14E+04 9.14E+03 O.OOE+OO 2.12E+04 5.48E+06 1.00E+05 Sb-124 5.74E+04 7.40E+02 2.00E+04 1.26E+02 O.OOE+OO 3.24E+06 1.64E+05 Sb-125 9.84E+04 7.59E+02 2.07E+04 9.10E+01 0.00E+OO 2.32E+06 4.03E+04 Te-129M 1.92E+04 6.85E+03 3.04E+03 6.33E+03 5.03E+04 1.76E+06 1.82E+05 1-131 4.81E+04 4.81 E+04 2.73E+04 1.62E+07 7.88E+04 O.OOE+OO 2.84E+03 1-133 1.66E+04 2.03E+04 7.70E+03 3.85E+06 3.38E+04 0.00E+OO 5.48E+03 Cs-134 6.51 E+05 1.01 E+06 2.25E+05 O.OOE+OO 3.30E+05 1.21 E+05 3.85E+03 Cs-136 6.51E+04 1.71 E+05 1.16E+05 O.OOE+OO 9.55E+04 1.45E+04 4.18E+03 Cs-137 9.07E+05 8.25E+05 1.28E+05 O.OOE+OO 2.82E+05 1.04E+05 3.62E+03 Ba-140 7.40E+04 6.48E+01 4.33E+03 0.00E+OO 2.11 E+01 1.74E+06 1.02E+05 Ce-141 3.92E+04 1.95E+04 2.90E+03 O.OOE+OO 8.55E+03 5.44E+05 5.66E+04 Ce-144 6.77E+06 2.12E+06 3.61 E+05 O.OOE+OO 1.17E+06 1.20E+07 3.89E+05 Nd-147 1.08E+04 8.73E+03 6.81 E+02 O.OOE+OO 4.81E+03 3.28E+05 8.21 E+04 (1) Dose factors are based on NUREG 0133 methodology. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 66 of 72 GRW Dose Parameters: Teen, Inhalation Pathway U1&2 Attachment 8: Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Teen Age Group, Inhalation Pathway Organ "o" (mrem/yr per µCi/m 3 ) RiinhaI (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 O.OOE+OO 7.25E+02 7.25E+02 7.25E+02 7.25E+02 7.25E+02 7.25E+02 C-14 2.60E+04 4.87E+03 4.87E+03 4.87E+03 4.87E+03 4.87E+03 4.87E+03 Cr-51 O.OOE+OO 0.00E+OO 1.35E+02 7.50E+01 3.07E+01 2.10E+04 3.00E+03 Mn-54 O.OOE+OO 5.11 E+04 8.40E+03 O.OOE+OO 1.27E+04 1.98E+06 6.68E+04 Fe-59 1.59E+04 3.70E+04 1.43E+04 O.OOE+OO O.OOE+OO 1.53E+06 1.78E+05 Co-58 O.OOE+OO 2.07E+03 2.78E+03 O.OOE+OO O.OOE+OO 1.34E+06 9.52E+04 Co-60 O.OOE+OO 1.51 E+04 1.98E+04 O.OOE+OO O.OOE+OO 8.72E+06 2.59E+05 Zn-65 3.86E+04 1.34E+05 6.24E+04 O.OOE+OO 8.64E+04 1.24E+06 4.66E+04 Rb-86 O.OOE+OO 1.90E+05 8.40E+04 O.OOE+OO O.OOE+OO O.OOE+OO 1.77E+04 Sr-89 4.34E+05 O.OOE+OO 1.25E+04 0.00E+OO O.OOE+OO 2.42E+06 3.71 E+05 Y-90 2.98E+03 0.00E+OO 8.00E+01 O.OOE+OO O.OOE+OO 2.93E+05 5.59E+05 Sr-90 3.31E+07 O.OOE+OO 6.66E+05 0.00E+OO O.OOE+OO 1.65E+07 7.65E+05 Zr-95 1.46E+05 4.58E+04 3.15E+04 O.OOE+OO 6.74E+04 2.69E+06 1.49E+05 Nb-95 1.86E+04 1.03E+04 5.66E+03 O.OOE+OO 1.00E+04 7.51 E+05 9.68E+04 Ru-103 2.10E+03 0.00E+OO 8.96E+02 O.OOE+OO 7.43E+03 7.83E+05 1.09E+05 Ru-106 9.84E+04 O.OOE+OO 1.24E+04 O.OOE+OO 1.90E+05 1.61 E+07 9.60E+05 Ag-110M 1.38E+04 1.31 E+04 7.99E+03 O.OOE+OO 2.50E+04 6.75E+06 2.73E+05 Sb-124 4.30E+04 7.94E+02 1.68E+04 9.76E+01 O.OOE+OO 3.85E+06 3.98E+05 Sb-125 7.38E+04 8.08E+02 1.72E+04 7.04E+01 O.OOE+OO 2.74E+06 9.92E+04 Te-129M 1.39E+04 6.58E+03 2.25E+03 4.58E+03 5.19E+04 1.98E+06 4.05E+05 1-131 3.54E+04 4.91 E+04 2.64E+04 1.46E+07 8.40E+04 O.OOE+OO 6.49E+03 1-133 1.22E+04 2.05E+04 6.22E+03 2.92E+06 3.59E+04 O.OOE+OO 1.03E+04 Cs-134 5.02E+05 1.13E+06 5.49E+05 0.00E+OO 3.75E+05 1.46E+05 9.76E+03 Cs-136 5.15E+04 1.94E+05 1.37E+05 0.00E+OO 1.10E+05 1.78E+04 1.09E+04 Cs-137 6.70E+05 8.48E+05 3.11E+05 O.OOE+OO 3.04E+05 1.21 E+05 8.48E+03 Ba-140 5.47E+04 6.70E+01 3.52E+03 0.00E+OO 2.28E+01 2.03E+06 2.29E+05 Ce-141 2.84E+04 1.90E+04 2.17E+03 0.00E+OO 8.88E+03 6.14E+05 1.26E+05 Ce-144 4.89E+06 2.02E+06 2.62E+05 0.00E+OO 1.21 E+06 1.34E+07 8.64E+05 Nd-147 7.86E+03 8.56E+03 5.13E+02 O.OOE+OO 5.02E+03 3.72E+05 1.82E+05 (1) Dose factors are based on NUREG 0133 methodology. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 67 of 72 GRW Dose Parameters: Adult, Inhalation Pathway U1&2 Attachment 9: Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Adult Age Group, 3 Inhalation Pathway Organ "o" (mrem/yr per µCi/m ) Ri lnhal (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 O.OOE+OO 7.18E+02 7.18E+02 7.18E+02 7.18E+02 7.18E+02 7.18E+02 C-14 1.82E+04 3.41 E+03 3.41 E+03 3.41 E+03 3.41 E+03 3.41 E+03 3.41 E+03 Cr-51 0.00E+OO 0.00E+OO 1.00E+02 5.95E+01 2.28E+01 1.44E+04 3.32E+03 Mn-54 O.OOE+OO 3.96E+04 6.30E+03 O.OOE+OO 9.84E+03 1.40E+06 7.74E+04 Fe-59 1.18E+04 2.78E+04 1.06E+04 O.OOE+OO O.OOE+OO 1.02E+06 1.88E+05 Co-58 O.OOE+OO 1.58E+03 2.07E+03 0.00E+OO O.OOE+OO 9.28E+05 1.06E+05 Co-60 0.00E+OO 1.15E+04 1.48E+04 O.OOE+OO O.OOE+OO 5.97E+06 2.85E+05 Zn-65 3.24E+04 1.03E+05 4.66E+04 0.00E+OO 6.90E+04 8.64E+05 5.34E+04 Rb-86 O.OOE+OO 1.35E+05 5.90E+04 O.OOE+OO O.OOE+OO O.OOE+OO 1.66E+04 Sr-89 3.04E+05 O.OOE+OO 8.72E+03 O.OOE+OO O.OOE+OO 1.40E+06 3.50E+05 Y-90 2.09E+03 O.OOE+OO 5.61 E+01 O.OOE+OO O.OOE+OO 1.70E+05 5.06E+05 Sr-90 2.87E+07 0.00E+OO 5.77E+05 0.00E+OO O.OOE+OO 9.60E+06 7.22E+05 Zr-95 1.07E+05 3.44E+04 2.33E+04 O.OOE+OO 5.42E+04 1.77E+06 1.50E+05 Nb-95 1.41 E+04 7.82E+03 4.21 E+03 0.00E+OO 7.74E+03 5.05E+05 1.04E+05 Ru-103 1.53E+03 O.OOE+OO 6.58E+02 O.OOE+OO 5.83E+03 5.05E+05 1.10E+05 Ru-106 6.91 E+04 O.OOE+OO 8.72E+03 O.OOE+OO 1.34E+05 9.36E+06 9.12E+05 Ag-110M 1.08E+04 1.00E+04 5.94E+03 O.OOE+OO 1.97E+04 4.63E+06 3.02E+05 Sb-124 3.12E+04 5.89E+02 1.24E+04 7.55E+01 O.OOE+OO 2.48E+06 4.06E+05 Sb-125 5.34E+04 5.95E+02 1.26E+04 5.40E+01 O.OOE+OO 1.74E+06 1.01 E+05 Te-129M 9.76E+03 4.67E+03 1.58E+03 3.44E+03 3.66E+04 1.16E+06 3.83E+05 1-131 2.52E+04 3.58E+04 2.05E+04 1.19E+07 6.13E+04 O.OOE+OO 6.28E+03 1-133 8.64E+03 1.48E+04 4.52E+03 2.15E+06 2.58E+04 O.OOE+OO 8.88E+03 Cs-134 3.73E+05 8.48E+05 7.28E+05 O.OOE+OO 2.87E+05 9.76E+04 1.04E+04 Cs-136 3.90E+04 1.46E+05 1.10E+05 O.OOE+OO 8.56E+04 1.20E+04 1.17E+04 Cs-137 4.78E+05 6.21 E+05 4.28E+05 O.OOE+OO 2.22E+05 7.52E+04 8.40E+03 Ba-140 3.90E+04 4.90E+01 2.57E+03 O.OOE+OO 1.67E+01 1.27E+06 2.18E+05 Ce-141 1.99E+04 1.35E+04 1.53E+03 O.OOE+OO 6.26E+03 3.62E+05 1.20E+05 Ce-144 3.43E+06 1.43E+06 1.84E+05 O.OOE+OO 8.48E+05 7.78E+06 8.16E+05 Nd-147 5.27E+03 6.10E+03 3.65E+02 O.OOE+OO 3.56E+03 2.21 E+05 1.73E+05 (1) Dose factors are based on NU REG 0133 methodology. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 68 of 72 GRW Dose Parameters: Child, Vegetation Pathway U1&2 Attachment 1O: Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Child Age Group, Vegetation Pathway Organ "o" (mrem/yr per µCi/(sec m 2 )) Ri,Vegi (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 (2) O.OOE+OO 2.29E+03 2.29E+03 2.29E+03 2.29E+03 2.29E+03 2.29E+03 C-14 (2) 3.50E+06 7.01 E+05 7.01E+05 7.01 E+05 7.01E+05 7.01 E+05 7.01 E+05 Cr-51 O.OOE+OO 0.00E+OO 1.17E+05 6.49E+04 1.77E+04 1.18E+05 6.20E+06 Mn-54 0.00E+OO 6.65E+08 1.77E+08 O.OOE+OO 1.86E+08 O.OOE+OO 5.58E+08 Fe-59 3.97E+08 6.42E+08 3.20E+08 O.OOE+OO 0.00E+OO 1.86E+08 6.69E+08 Co-58 0.00E+OO 6.45E+07 1.97E+08 O.OOE+OO O.OOE+OO O.OOE+OO 3.76E+08 Co-60 O.OOE+OO 3.78E+08 1.12E+09 O.OOE+OO 0.00E+OO O.OOE+OO 2.10E+09 Zn-65 8.12E+08 2.16E+09 1.35E+09 O.OOE+OO 1.36E+09 O.OOE+OO 3.80E+08 Rb-86 O.OOE+OO 4.54E+08 2.79E+08 O.OOE+OO O.OOE+OO O.OOE+OO 2.92E+07 Sr-89 3.59E+ 10 O.OOE+OO 1.03E+09 0.00E+OO O.OOE+OO O.OOE+OO 1.39E+09 Y-90 2.31E+04 O.OOE+OO 6.18E+02 O.OOE+OO O.OOE+OO O.OOE+OO 6.57E+07 Sr-90 1.87E+12 O.OOE+OO 3.77E+10 O.OOE+OO 0.00E+OO 0.00E+OO 1.67E+10 Zr-95 3.86E+06 8.50E+05 7.56E+05 O.OOE+OO 1.22E+06 O.OOE+OO 8.86E+08 Nb-95 4.12E+05 1.61 E+05 1.15E+05 O.OOE+OO 1.51 E+05 0.00E+OO 2.97E+08 Ru-103 1.53E+07 O.OOE+OO 5.89E+06 O.OOE+OO 3.86E+07 O.OOE+OO 3.96E+08 Ru-106 7.45E+08 O.OOE+OO 9.30E+07 O.OOE+OO 1.01 E+09 0.00E+OO 1.16E+10 Ag-110M 3.21E+07 2.17E+07 1.74E+07 O.OOE+OO 4.04E+07 O.OOE+OO 2.58E+09 Sb-124 3.52E+08 4.57E+06 1.23E+08 7.78E+05 O.OOE+OO 1.96E+08 2.20E+09 Sb-125 4.99E+08 3.85E+06 1.05E+08 4.62E+05 O.OOE+OO 2.78E+08 1.19E+09 Te-129M 8.40E+08 2.35E+08 1.30E+08 2.71E+08 2.47E+09 O.OOE+OO 1.02E+09 1-131 1.43E+08 1.44E+08 8.17E+07 4.75E+10 2.36E+08 O.OOE+OO 1.28E+07 1-133 3.52E+06 4.36E+06 1.65E+06 8.09E+08 7.26E+06 O.OOE+OO 1.76E+06 Cs-134 1.60E+10 2.63E+10 5.55E+09 0.00E+OO 8.16E+09 2.93E+09 1.42E+08 Cs-136 8.18E+07 2.25E+08 1.46E+08 0.00E+OO 1.20E+08 1.79E+07 7.90E+06 Cs-137 2.39E+ 10 2.29E+10 3.38E+09 O.OOE+OO 7.46E+09 2.68E+09 1.43E+08 Ba-140 2.77E+08 2.43E+05 1.62E+07 O.OOE+OO 7.90E+04 1.45E+05 1.40E+08 Ce-141 6.55E+05 3.27E+05 4.85E+04 0.00E+OO 1.43E+05 O.OOE+OO 4.08E+08 Ce-144 1.27E+08 3.98E+07 6.78E+06 O.OOE+OO 2.21E+07 O.OOE+OO 1.04E+10 Nd-147 7.27E+04 5.89E+04 4.56E+03 O.OOE+OO 3.23E+04 O.OOE+OO 9.33E+07 (1) Dose factors are based on NU REG 0133 methodology. (2) For tritium and carbon-14, the dose parameter units are mrem/yr per µCi/m 3 for all pathways, and they shall by multiplied by x/0. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 69 of 72 GRW Dose Parameters: Teen, Vegetation Pathway U1&2 Attachment 11 : Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Teen Age Group, Vegetation Pathway Organ "o" (mrem/yr per µCi/(sec m 2 )) Ri,Vegi (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 (2) 0.00E+OO 1.47E+03 1.47E+03 1.47E+03 1.47E+03 1.47E+03 1.47E+03 C-14 (2) 1.45E+06 2.91E+05 2.91E+05 2.91 E+05 2.91 E+05 2.91 E+05 2.91 E+05 Cr-51 O.OOE+OO O.OOE+OO 6.16E+04 3.42E+04 1.35E+04 8.79E+04 1.03E+07 Mn-54 O.OOE+OO 4.54E+08 9.01 E+07 0.00E+OO 1.36E+08 O.OOE+OO 9.32E+08 Fe-59 1.79E+08 4.18E+08 1.61 E+08 O.OOE+OO O.OOE+OO 1.32E+08 9.89E+08 Co-58 O.OOE+OO 4.37E+07 1.01 E+08 O.OOE+OO O.OOE+OO O.OOE+OO 6.02E+08 Co-60 O.OOE+OO 2.49E+08 5.60E+08 O.OOE+OO O.OOE+OO O.OOE+OO 3.24E+09 Zn-65 4.24E+08 1.47E+09 6.86E+08 0.00E+OO 9.41 E+08 O.OOE+OO 6.23E+08 Rb-86 O.OOE+OO 2.75E+08 1.29E+08 O.OOE+OO O.OOE+OO O.OOE+OO 4.06E+07 Sr-89 1.51 E+10 O.OOE+OO 4.33E+08 O.OOE+OO O.OOE+OO O.OOE+OO 1.80E+09 Y-90 1.24E+04 O.OOE+OO 3.35E+02 O.OOE+OO 0.00E+OO O.OOE+OO 1.02E+08 Sr-90 9.22E+ 11 O.OOE+OO 1.84E+10 O.OOE+OO O.OOE+OO 0.00E+OO 2.11E+10 Zr-95 1.72E+06 5.44E+05 3.74E+05 O.OOE+OO 7.99E+05 O.OOE+OO 1.26E+09 Nb-95 1.93E+05 1.07E+05 5.90E+04 O.OOE+OO 1.04E+05 O.OOE+OO 4.58E+08 Ru-103 6.82E+06 O.OOE+OO 2.91 E+06 O.OOE+OO 2.40E+07 O.OOE+OO 5.69E+08 Ru-106 3.09E+08 0.00E+OO 3.90E+07 O.OOE+OO 5.97E+08 O.OOE+OO 1.48E+10 Ag-110M 1.52E+07 1.44E+07 8.73E+06 O.OOE+OO 2.74E+07 O.OOE+OO 4.03E+09 Sb-124 1.55E+08 2.85E+06 6.03E+07 3.51E+05 O.OOE+OO 1.35E+08 3.11 E+09 Sb-125 2.14E+08 2.34E+06 5.01 E+07 2.05E+05 O.OOE+OO 1.88E+08 1.67E+09 Te-129M 3.61 E+08 1.34E+08 5.72E+07 1.17E+08 1.51 E+09 O.OOE+OO 1.36E+09 1-131 7.68E+07 1.08E+08 5.78E+07 3.14E+10 1.85E+08 O.OOE+OO 2.13E+07 1-133 1.93E+06 3.28E+06 1.00E+06 4.58E+08 5.75E+06 O.OOE+OO 2.48E+06 Cs-134 7.10E+09 1.67E+10 7.75E+09 O.OOE+OO 5.31 E+09 2.03E+09 2.08E+08 Cs-136 4.35E+07 1.71 E+08 1.15E+08 0.00E+OO 9.31 E+07 1.47E+07 1.38E+07 Cs-137 1.01 E+10 1.35E+10 4.69E+09 O.OOE+OO 4.59E+09 1.78E+09 1.92E+08 Ba-140 1.38E+08 1.69E+05 8.90E+06 O.OOE+OO 5.74E+04 1.14E+05 2.13E+08 Ce-141 2.83E+05 1.89E+05 2.17E+04 O.OOE+OO 8.89E+04 O.OOE+OO 5.40E+08 Ce-144 5.27E+07 2.18E+07 2.83E+06 O.OOE+OO 1.30E+07 O.OOE+OO 1.33E+10 Nd-147 3.67E+04 4.00E+04 2.39E+03 O.OOE+OO 2.35E+04 O.OOE+OO 1.44E+08 (1) Dose factors are based on NUREG 0133 methodology. 3 (2) For tritium and carbon-14, the dose parameter units are mrem/yr per µCi/m for all pathways, and they shall by multiplied by x/Q. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 70 of 72 GRW Dose Parameters: Adult, Vegetation Pathway U1&2 Attachment 12: Page 1 of 1 GRW Dose Parameters for Radioiodines, Radioactive Particulates, and any Radionuclide other than Noble Gas (IPT), Gaseous Effluents (GRW), Adult Age Group, Vegetation Pathway Organ "o" (mrem/yr per µCi/(sec m 2 )) Ri,Vegi (1) Nuclide Bone Liver T Body Thyroid Kidney Lung Gl-LLI H-3 (2) O.OOE+OO 1.29E+03 1.29E+03 1.29E+03 1.29E+03 1.29E+03 1.29E+03 C-14 {2) 8.97E+05 1.79E+05 1.79E+05 1.79E+05 1.79E+05 1.79E+05 1.79E+05 Cr-51 O.OOE+OO O.OOE+OO 4.64E+04 2.77E+04 1.02E+04 6.15E+04 1.17E+07 Mn-54 O.OOE+OO 3.13E+08 5.97E+07 0.00E+OO 9.31E+07 O.OOE+OO 9.58E+08 Fe-59 1.26E+08 2.96E+08 1.13E+08 O.OOE+OO 0.00E+OO 8.27E+07 9.87E+08 Co-58 O.OOE+OO 3.08E+07 6.90E+07 O.OOE+OO 0.00E+OO O.OOE+OO 6.24E+08 Co-60 O.OOE+OO 1.67E+08 3.69E+08 O.OOE+OO 0.00E+OO O.OOE+OO 3.14E+09 Zn-65 3.17E+08 1.01 E+09 4.56E+08 O.OOE+OO 6.75E+08 0.00E+OO 6.36E+08 Rb-86 O.OOE+OO 2.20E+08 1.03E+08 0.00E+OO O.OOE+OO 0.00E+OO 4.34E+07 Sr-89 9.95E+09 O.OOE+OO 2.86E+08 0.00E+OO 0.00E+OO 0.00E+OO 1.60E+09 Y-90 1.33E+04 O.OOE+OO 3.57E+02 0.00E+OO O.OOE+OO 0.00E+OO 1.41 E+08 Sr-90 6.95E+ 11 O.OOE+OO 1.40E+10 0.00E+OO O.OOE+OO O.OOE+OO 1.75E+10 Zr-95 1.18E+06 3.77E+05 2.55E+05 O.OOE+OO 5.92E+05 O.OOE+OO 1.20E+09 Nb-95 1.43E+05 7.95E+04 4.27E+04 O.OOE+OO 7.86E+04 O.OOE+OO 4.83E+08 Ru-103 4.77E+06 O.OOE+OO 2.05E+06 O.OOE+OO 1.82E+07 O.OOE+OO 5.57E+08 Ru-106 1.93E+08 O.OOE+OO 2.44E+07 0.00E+OO 3.72E+08 O.OOE+OO 1.25E+10 Ag-11 OM 1.05E+07 9.75E+06 5.79E+06 O.OOE+OO 1.92E+07 O.OOE+OO 3.98E+09 Sb-124 1.04E+08 1.96E+06 4.11 E+07 2.52E+05 0.00E+OO 8.08E+07 2.95E+09 Sb-125 1.37E+08 1.53E+06 3.25E+07 1.39E+05 O.OOE+OO 1.05E+08 1.50E+09 Te-129M 2.51 E+08 9.37E+07 3.97E+07 8.62E+07 1.05E+09 O.OOE+OO 1.26E+09 1-131 8.07E+07 1.15E+08 6.62E+07 3.78E+10 1.98E+08 0.00E+OO 3.05E+07 1-133 2.08E+06 3.62E+06 1.10E+06 5.32E+08 6.31E+06 O.OOE+OO 3.25E+06 Cs-134 4.67E+09 1.11E+10 9.08E+09 0.00E+OO 3.59E+09 1.19E+09 1.94E+08 Cs-136 4.25E+07 1.68E+08 1.21 E+OB O.OOE+OO 9.33E+07 1.28E+07 1.90E+07 Cs-137 6.36E+09 8.70E+09 5.70E+09 0.00E+OO 2.95E+09 9.81 E+08 1.68E+08 Ba-140 1.29E+08 1.61 E+05 8.42E+06 0.00E+OO 5.49E+04 9.24E+04 2.65E+08 Ce-141 1.97E+05 1.33E+05 1.51 E+04 O.OOE+OO 6.19E+04 O.OOE+OO 5.09E+08 Ce-144 3.29E+07 1.38E+07 1.77E+06 O.OOE+OO 8.16E+06 O.OOE+OO 1.11E+10 Nd-147 3.37E+04 3.90E+04 2.33E+03 O.OOE+OO 2.28E+04 O.OOE+OO 1.87E+08 (1) Dose factors are based on NUREG 0133 methodology. 3 (2) For tritium and carbon-14, the dose parameter units are mrem/yr per µCi/m for all pathways, and they shall by multiplied by x/Q. CAP_A-8u3r38.DOC 0405.0847

CAP A-8 R38 Page 71 of 72 Liquid Discharges Monitored for Radioactivity U1 &2 Attachment 13: Page 1 of 1 

                          ~iquid Radwaste Syste~           Condensate Demineralizer                    Steam Generator Regeneration Tanks                    Slowdown l!lilll            LOW CCNDllCTl1T1    1>>""""'1Mrl                  ' ::;Tl:JM!I omn:n.a:rcm U<JidtERAD'i1li\BTE rma.c~:zua r;~..M
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CAP A-8 R38 Page 72 of 72 Gaseous Releases Monitored for Radioactivity U1&2 Attachment 14: Page 1 of 1 

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Attachment 5 PG&E Letter DCL-17-031 Diablo Canyon Power Plant Departmental Administrative Procedure, RP2.DC2, "Radwaste Solidification Process Control Program," Revision 16

I 

   ***ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

DIABLO CANYON POWER PLANT RP2.DC2 DEPARTMENTAL ADMINISTRATIVE PROCEDURE Rev.16 Page 1of9 Radwaste Solidification Process Control Program 01/11/16 Effective Date QUALITY RELATED Table of Contents

1. SCOPE ........................................................................................................... 1
2. DISCUSSION ..................... ;........................................................................... 1
3. DEFINITIONS ................................................................................................. 2
4. RESPONSIBILITIES ....................................................................................... 2
5. INSTRUCTIONS ............................................................................................. 3 5.1 General ........................................................................................................... 3 5.2 Wet Waste .................................................................. ,................................... 3 5.3 Oily Waste ...................................................................................................... 6 5.4 Special Cases ................................................................................................. 6 5.5 Remedial Actions ............................................................................................ 6 5.6 Vendor Reports ............................................................................................... 7 5.7 Vendor Procedures ......................................................................................... 7
6. RECORDS ...................................................................................................... 8
7. REFERENCES ............................................................................................... 8
8. Major Change to the Solid Radwaste Treatment System Evaluation ............... 9 ATTACHMENTS:
1. Form 69-10350, Process Control Program (PCP) Specimen Monitoring, 12/10/15
1. SCOPE 1.1 The purpose of the Radwaste Solidification Process Control Program (PCP) is to define the necessary program guidance used at the plant to ensure that activities to solidify wet radioactive waste for disposal, conform to the code of Federal and State regulations and the Waste Burial Site License criteria.
2. DISCUSSION 2.1 Solidification is the conversion of wet radioactive wastes into a form that meets shipping and burial ground requirements.

2.2 This procedure implements the requirements of 10 CFR 50.36a and General Design 

 \

Criterion 60 of Appendix A to 10 CFR Part 50. The process parameters included in establishing the PROCESS CONTROL PROGRAM may include, but are not limited to, waste type, waste pH, waste/liquid/SOLIDIFICATION agent/catalyst ratios, waste oil content, waste principal chemical constituents, and mixing and curing times. RP2!DC2u3r16.DOC 1214.0923 L

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 2 of 9 2.3 This procedure contains the individual procedures necessary to perform PCP sample solidifications. 2.4 Cement solidification will not be utilized to stabilize resin or floor drain sludges. 2.5 When access to a low level waste (LLW) disposal site is available, only NRC approved, or LLW disposal host state approved, or accepted binders may be used to solidify resin or floor drain sludges to meet waste form stability. 1/16 2.6 When access to a LLW disposal site is not available, only NRC approved binders or binders found to meet the NRC branch technical position (BTP) waste form test by the Conference of Radiation Control Program Directors (CRCPD) may be used to meet waste form stability for on-site storage and subsequent disposal.

3. DEFINITIONS None
4. RESPONSIBILITIES 4.1 The Station Director has overall responsibility for the solid radioactive waste activities and approves changes to the PCP.

4.2 Radiation protection manager is responsible for implementing the requirements of this procedure. 4.3 Radwaste engineer is responsible for the developing and reviewing procedures relating to the requirements of this procedure. 4.4 Radwaste foreman is responsible for the implementing procedures relating to the requirements of this procedure. 4.5 Quality is responsible for ensuring compliance with the program requirements. 1116 I RP2!DC2u3r16.DOC 1214.0923 J

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 3 of 9

5. INSTRUCTIONS 5.1 General NOTE: It is the policy of the company to conscientiously apply emphasis and attention to those activities associated with generation, processing, packaging, storage and disposal of radioactive waste generated at the plant and to maintain a high level of assurance that radioactive waste forms meet or exceed the applicable federal and state regulations and the radioactive waste burial site license criteria.

5.1.1 Changes to this program requires submission to the US NRC in the annual Radioactive Effluent Release report for the period in which the changes were made. 5.1.2 Any major change to the solid radwaste treatment system shall be reported to the US NRC in the annual Radioactive Effluent Release report for the period in which the change was approved.

a. The discussion of each system change shall contain the items listed in Section 8, "Major Change to the Solid Radwaste Treatment System Evaluation."
b. This information may be submitted as part of the annual FSAR update in lieu of the annual Radioactive Effluent Release report.

5.2 Wet Waste 5.2.1 Liquid/Wet Waste

a. Liquid/wet wastes shall be processed to a condition meeting shipping and disposal criteria.
1. These criteria include requirements for immobilization, stability and limits on free standing water (FSW).
2. Specific instructions on processing and required FSW limits are contained in plant procedures and/or .qualified vendor procedures.

5.2.2 Containers, Shipping Casks, and Packaging

a. Solid radioactive waste shall be processed, packaged and shipped per plant procedures and/or qualified vendor procedures.
1. These procedures provide specific instructions which ensure the container, shipping casks, and packaging methods comply with the applicable code of federal regulations, state regulations and the radioactive waste burial site license criteria.

RP2!DC2u3r16.DOC 1214.0923

Radwaste Solidification Process Controi Program RP2.DC2 R16 Page 4 of 9 5.2.3 Shipping and Disposal

a. Solid radioactive waste shall be prepared, loaded and shipped to a federal and/or state licensed radioactive waste disposal facility (burial ground) per plant procedures and/or qualified vendor procedures.
1. These procedures provide specific instructions which ensure the shipments meet the intended burial ~ite license requirements as well as applicable federal and state regulations.

5.2.4 Specimen Samples

a. Qualified vendor procedures, approved by the Station Director, shall provide written instructions on sampling, processing and handling waste for the determination of process parameters prior to the actual full scale solidification.
1. These procedures contain the description of the laboratory mixing methods used for specimen sample solidification.

5.2.5 Solidification Process

a. Qualified vendors used for radioactive waste solidification shall provide a Process Control program and written procedures.
1. These procedures and changes thereto shall be approved by the Station Director prior to use.
2. The vendors shall have an NRG topical report, CRCPD E-5 committee approval or submittal for state approval on the waste forms which will be solidified. These documents should include:

a) Description of the solidification process. b) Type of solidification used. c) Process control parameters. d) Parameter boundary conditions. e) Proper waste form properties. f) Specific instructions to ensure the systems are operated within established process parameters. RP2!DC2u3r16.DOC 1214.0923

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 5 of 9 5.2.6 Sampling Program for SolidificationT 32288

a. Vendors, utilized for radioactive waste solidification, shall include in their approved procedures, requirements to sample at least every tenth batch of the same waste type to ensure solidification and to provide actions to be taken if a sample fails to demonstrate solidification. 1/16 I
1. After a test specimen failure, initial test specimens from three consecutive batches of that waste type must demonstrate solidification before testing requirements of every tenth batch can be resumed.
2. Documentation of such sampling is to be accomplished by completing Form 69-10350, "Process Control Program (PCP) Specimen Monitoring.1 1 116
3. These forms will be maintained by radiation protection and in the Records Management System (RMS). "
4. These procedures and changes thereto shall be approved by the Station Director prior to use. '

5.2.7 Demonstration of Waste Form Stability 1116 I

a. Vendors utilized to process wet wastes shall include in their procedures provisions to demonstrate that the solidification and/or FSW.criteria in the 1116 I federal and state regulations and the burial site license are met for the specific type of waste being processed.

5.2.8 Corrective Actions for Free Standing Water

a. Vendors utilized to process wet wastes shall include in their approved procedures provisions for correcting processed waste in which free standing water in excess of the FSW criteria is detected.

5.2.9 Exothermic Processes I

a. Vendors utilized for radioactive waste solidification that use an exothermic solidification method shall include in their approved procedures:
1. Waste/binder temperature monitoring to mitigate the consequence of adverse exothermic reactions which may occur in the full scale solidification but might not be noticeable in the specimen tests.
2. Specific process control parameters that shall be met before capping the container.

RP2!DC2u3r16.DOC 1214.0923

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 6 of 9 5.3 Oily Waste 5.3.1 Oily wastes shall be shipped to off-site processor for treatment.

a. These processors provide the proper methods to treat oily wastes to comply with federal and state regulations and applicable burial site license criteria.

5.4 Special Cases NOTE: Based upon previous industry experience, the plant foresees the potential for situations arising that may be beyond existing plant capabilities. 5.4.1 Anticipating this possibility, provisions to accommodate such situations in a timely manner by using special techniques or processes are allowed. These special cases shall be controlled as follows:

a. Implementing procedures shall be developed comparable to those used for normal plant solid waste activities based on the guidance of this PCP and incorporating the applicable provisions for process control and testing.
b. The implementing procedure shall receive Station Director approval prior to use.
c. Use of this provision and supporting information shall be included in the next annual Radioactive Effluent Release report to the NRC.

5.5 Remedial Actions 5.5.1 For waste forms which do not meet federal, state and burial site regulations and requirements, suspension of shipment of the inadequately processed waste and correction of the PCP, procedures or processing equipment shall be performed as necessary to prevent recurrence. 5.5.2 For waste forms not prepared per the PCP, testing of the waste to demonstrate 1/16 I shipping and burial site requirements shall be performed and appropriate administrative action taken to prevent recurrence. RP2!DC2u3r16.DOC 1214.0923 l

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 7 of 9 5.6 Vendor ReportsT 32288 5.6.1 The following is located in vendor binder TK 9400/ES-1 maintained by the RP radwaste engineer. a .. US DOE Waste Form Report INEEL/EXT-04-01501, Low-Level Waste Form Qualification Testing of the NUKEM Macro encapsulation Cartridge Filters Waste Form, December 2005. 5.6.2 The following is located in vendor binder TK 94001 DTl-1 maintained by the RP radwaste engineer.

a. US DOE Waste Form 'Report INEEL/EXT-04-01505, Low-Level Waste Form Qualification Testing of the Diversified Technologies Polymer Waste Form, January 2004.
b. US DOE Waste Form Report INEEL/EXT-04-01505 Addendum, Low-Lev!31 Waste Form Qualification Testing of the Diversified Technologies Polymer Waste Form - APS ENCAP Application, February 2009.
c.
  • Topical Report DTl-VERl-100-NP-A, VERI' (Vinyl Ester Resin In Situ)

Solidification Process for Low-Level Radioactive Waste, Rev 1.

d. Topical Report DT-VERl-100-NP-A, Addendum 1, ENCAP Encapsulation Utilizing the VERI Solidification Process.
e. Topical Report DNS-RSS-200-NP, The Dow Waste Solidification Process for Low-Level Radioactive Waste (Docket Number WM-82).

5.7 Vendor Procedures 5.7.1 A roster of the currently approved vendor Process Control Program procedures is located in NPG Library/Radiation Protection/RadWaste/RW Vendor Waste Form Procedures. RP2!DC2u3r16.DOC 1214.0923

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 8 of 9

6. RECORDS 6.1 Records of PCP specimen results and form 69-10350 shall be submitted to the Records Management System on a shipment basis by container per RCP RW-4.
7. REFERENCES 7.1 RP2.DC3, "Radwaste Dewatering Process Control Program" 7.2 Cement Encapsulation of Cartridge Filters to Provide Waste Form Stability Basis Document, Rev. 1, PG&E NRS Log 0087 7.3 Encapsulation of Cartridge Filters In Vinyl Ester Styrene (VES) to Provide Waste Form Stability Basis Document, Rev. 0, PG&E NRS Log 0072 7.4 NRG Information Notice 88-08, Chemical Reactions with Radioactive Waste Solidification Agents 7.5 NUREG 0472 and 0473 7.6 NUREG-0800, 11.4 US NRG Standard Review Plan Solid Waste Management Systems 7.7 Technical Position on Waste Form, Revision 1, US NRG, January 1991 7.8 Title 1O Code of Federal Regulations RP2!DC2u3r16.DOC 1214.0923

Radwaste Solidification Process Control Program RP2.DC2 R16 Page 9 of 9

8. Major Change to the Solid Radwaste Treatment System Evaluation 8.1 A summary of the evaluation that led to the determination that the change could be made per 10 CFR 50.59.

8.2 Sufficient detailed information to totally support the reason for the change without benefit of additional or supplemental information. 8.3 A detailed description of the equipment, components and processes involved and the interfaces with other plant systems. 8.4 An evaluation of the change which shows the predicted releases of radioactive materials in liquid and gaseous effluents and/or quantity of solid waste that differ from those previously predicted in the License application and amendments thereto. 8.5 An evaluation of the change which shows the expected maximum exposures to a MEMBER OF THE PUBLIC in the UNRESTRICTED AREA and to the general population that differ from those previously estimated in the License application and amendments thereto. 8.6 A comparison of the predicted releases of radioactive materials, in liquid and gaseous effluent and in solid waste, to the actual releases for the period prior to when the changes are to be made. 8.7 An estimate of the exposure to plant operating personnel as a result of the change. 8.8 Documentation of the fact that the change was reviewed and found acceptable. RP2!DC2u3r16.DOC 1214.0923

DCPP Form 69-10350 (12/10/15) RP2.DC2 Attachment 1 Page 1of1 Process Control Program (PCP) Specimen Monitoring Waste Batch PCP Date Number Type Passed Failed Notes Operator Reviewer RP2!DC2u3r16.DOC 1214.0923

Attachment 6 PG&E Letter DCL-17-031 Diablo Canyon Power Plant Departmental Administrative Procedure, RP2.DC3,"Radwaste Dewatering Process Control Program," Revision 9 

                    /

***ISSUED FOR USE BY: _ _ _ _ _ _ _ _ _ DATE: _ _ _ _ _ EXPIRES: _ _ _ _ _ ***

DIABLO CANYON POWER PLANT RP2.DC3 DEPARTMENTAL ADMINISTRATIVE PROCEDURE Rev.9 Page 1of4 Radwaste Dewatering Process ~ontrol Program 10/05/10 Effective Date QUALITY RELATED Table of Contents 

       *1. SCOPE ........................................................................................................... 1
2. DISCUSSION .................................................................................................. 1
3. DEFINITIONS ................................................................................................. 1
4. RESPONSIBILITIES ....................................................................................... 2
5. INSTRUCTIONS ............................................................................................. 2 5.1 General ........................................................................................................... 2 5.2 Required Specific Instructions for the Dewatering Procedures ........................ 3 5.3 General Control Parameters ........................................................................... 3 5.4 Reports and HIC Certifications ......................................................................... 4
6. RECORDS ....................................................................................................... 4
7. REFERENCES ...........................................................*.................................... 4 ..
1. SCOPE 1.1 The purpose of the Radwaste Dewatering Process Control Program is to assure that the waste form resulting from the dewatering of vendor containers meets State and Federal regulations as well as Burial Site Criteria for Free Standing Water (FSW).

1.2 This Dewatering Process Control Program applies to all vendor dewatering liners and High Integrity Containers (HICs) containing ion exchange and filter media.

2. DISCUSSION 2.1 The dewatering system consists of a pump with necessary hoses for connection to the liner or HIC and to the plant interface piping. Liners or HICs supplied by a vendor are preassembled with a hub and/or lateral assembly for dewatering retention of media.

Procedures for dewatering are dependent on the waste media to be dewatered and/or the container type .. 2.2 These procedures, specific to the container and waste material, provide instruction for the pumping and settling time sequences as well as; pump rate, total times pumped, and acceptance criteria. Additional contingencies are provided for vessels or liners requiring further steps to meet acceptance criteria and the means of verification of compliance. Methods f_or recording container and dewatering data are included In the specific procedures.

3. DEFINITIONS None RP2!DC3u3r09.DOC 0914.1203

Radwaste Dewatering Process Control Program RP2.DC3 R9 Page 2 of 4

4. RESPONSIBILITIES 4.1 The Station Director shall approve changes to this program.

4.2 The radwaste engineer is responsible for developing and reviewing procedures relating to the requirements of this program. 4;3 The radwaste foreman is responsible for implementing the procedures relating to the requirements of this program. 4.4 Quality organization is responsible for verifying compliance with the quality requirements of the dewatering procedures.

5. INSTRUCTIONS 5.1 General 5.1.1 In order to stabilize a dewatered wet waste an NRG approved HIC may be utilized.

5.1.2 Polyethylene HICs which are approved by the disposal site state may be used to provide waste stability provided they are disposed of in a concrete overpack as a compensatory measure for their structural deficiency. 5.1.3 Changes to the Dewatering Control Program which affect any waste form parameters (e.g., type of HIC) require submission to the US NRG in the annual Radioactive Effluent Release report for the period in which the changes were made. 5.1.4 Any container of dewatered ion exchange media placed in interim storage shall undergo a dewatering verification prior to shipment for disposal. 5.1.5 No NRG topical or vendor dewatering test report for spent cartridge filters currently exists. Spent cartridge filters may be loaded into HICs and dewatered for storage.

a. These containers shall not be shipped for disposal prior to encapsulation of the contents or dewatering by an as yet to be determined verifiable process to meet free standing water criteria.

5.1.6 The Dewatering Control Program consists of:

  • Dewatering test reports
  • HIC certifications
  • Dewatering procedures
a. Changes to the Dewatering Control Program shall be approved by the Station Director.
  • RP2!DC3u3r09.DOC 0914.1203

Radwaste Dewatering Process Control Program RP2.DC3 R9 Page 3 of 4 5.2 Required Specific Instructions for the Dewatering Procedures 5.2:1 Pumping time cycles. 5.2.2 Pump rate. 5.2.3 Total time to be pumped. 5.2.4 Temperature monitoring. 5.2.5 Acceptance criteria of FSW. 5.2.6 Pressure monitoring when gas generation is suspected.T34960 1011 a I 5.2. 7 Documentation and records of dewatering activities. 5.2.8 These procedures shall also specify the type of container and waste media that may be dewatered.

a. Contingencies shall be provided for additional steps that may be necessary to meet FSW criteria.

5.2.9 A roster of the curren,tly approved vendor dewatering procedures is located in NPG Library/Radiation Protection/RadWaste/RW Vendor Procedures.doc. 5.3 General Control Parameters 5.3.1 Carbon steel liners for direct disposal at Clive, UT shall not to be loaded with material that exceeds Class A after concentration averaging. 5.3.2 Waste temperature should be monitored to mitigate exothermic chemical reactions which are possible when dewatering organic ion exchange materials used*for chemical decontamination. 5.3.3 At the end of the appropriate pump cycle a measurement of displaced liquid shall be made for containers sent directly to disposal. 5.3.4 Records shall be maintained for all dewatered containers prior to shipment.

a. Copies shall be delivered to the radwaste foreman for indexing with radwaste container paper work.

RP2!DC3u3r09.DOC 0914.1203

Radwaste Dewatering Process Control Program RP2.DC3 R9 Page 4 of 4 5.4 Reports and HIC Certifications 5.4.1 The following are located in vendor binder TK 9400/ES-1 maintained by the RP radwaste engineer.

a. Test Report: Scientific Ecology Group, Inc. EN-005, Summary Test Report for Dewatering Tests on Durasil 70, DT-80 and other media Dewatering Testing, Rev. C.
b. State of South Carolina Department of Health and Environmental Control, Certificate of Compliance - High Integrity Container.
1. Certification Number DHEC-PL-01 O 5.4.2 The following is located in vender binder TK 94001/DTl-2 maintained by the RP radwaste engineer. *
a. Diversified Technologies, High Velocity Vacuum (HVV) Dewatering Test 10110 Report, Rev 1.
b. Diversified Technology Services, Process Control Parameters PCP-02, High Velocity Vacuum (HVV) Dewatering, Rev 0, 08/16/90.
6. RECORDS 6.1 Records of dewatering activities shall be submitted to the Records Management System by container per RCP RW-4.
7. REFERENCES 7.1 RCP RW-4, "Solid Radioactive Waste Shipment" 7.2 NRG Information Notice No. 83-14: Dewatered Spent Ion Exchange Resin Susceptibility to Exothermic Chemical Reaction 7.3 NRG Information Notice No. 89-27: Limitations on the Use of Waste Forms and High Integrity Containers for the Disposal of Low-Level Radioactive Waste 7.4 NRG Information Notice No. 90-50: Minimization of Methane Gas in Plant Systems and Radwaste Shipping Containers 7.5 Polyethylene HIC and Concrete Overpack Disposal Basis Document, Rev 1, PG&E NRS Log 0041 RP2!DC3u3r09.DOC 0914.1203

Attachment 7 PG&E Letter DCL-17-031 2016 DCPP Land Use Census

2016 DCPP Land Use Census Diablo Canyon Power Plant (DCPP) was owned and operated by Pacific Gas & Electric (PG&E) Company. PG&E owned and provided environmental stewardship to approximately 14 miles of Pacific Ocean coastline and approximately 13,000 acres surrounding the 1,000 acre DCPP site boundary. The PG&E property extended roughly from Avila Beach to Montana de Oro State Park. DCPP was located approximately seven miles WNW of Avila Beach and approximately four miles SSE of Montana de Oro State Park. DCPP Radiological Environmental Monitoring Program (REMP) personnel conducted a Land Use Census (LUC) in the vicinity ofDCPP for 2016. The LUC was based on Nuclear Regulatory Commission (NRC) Regulatory Guide 4.8, "Environmental Technical Specifications for Nuclear Power Plants". The LUC also provided compliance with 10 CPR 50 Appendix I Section IV (B)(3); "Identify changes in the use of unrestricted areas (e.g., for agricultural purposes) to permit modifications in monitoring programs for evaluating doses to individuals from principal pathways of exposure". DCPP Program Directive CY2, "Radiological Monitoring and Controls Program" required performance of a LUC. DCPP procedure RPl.IDl l, "Environmental Radiological Monitoring Procedure", required identification of the nearest milk animal, nearest residence, and the nearest broadleafproducing garden greater than 50 square meters (500 square feet) in each of the landward meteorological sectors within a radial distance of 8 kilometers (5 miles) of the Unit One Containment (CTMT) structure. A LUC was conducted at least once per year during the growing season (between Feb 15 and Dec 1) for the Diablo Canyon environs. The 2016 LUC was conducted via a helicopter over-flight and landowner telephone interviews. The helicopter over-flight was conducted on November 3n1, 2016. Telephone interviews were conducted September 8th through November 30th, 2016. Ten individual landowners or tenants were contacted. Milk: No milk animals were identified within the first 8 kilometers (5 miles) of any sector. Residences: The nearest residence, relative to all sectors, was a small trailer located in the NNW sector about 2.42 kilometers (1.5 miles) from the plant. One ranch worker occupied this BLANCHARD trailer approximately 1 day per week (midweek) during the year. A total of nineteen structures were identified within the 8-kilometer (5-mile) radius of the plant, which were confirmed or appear to have been occupied in 2016. Six abandoned structures were identified during the LUC. The nearest residence in each sector was summarized fa Table 8. Gardens: The LUC identified two household gardens greater than 50 square meters (500 square feet) that produced broadleafvegetation. The READ garden (REMP station 3Cl) was approximately 114 acre and located in the NNE sector at 7.13 kilometers (4.43 miles). The KOONZE garden (REMP station 6Cl) was approximately 500 square feet and located in the E sector at 7.43 kilometers (4.62 miles).

MELLO managed a farm in the ESE sector along the southern site access road coastal plateau. The farm started at approximately 4.8 km (3 mi) and extended to 7.8 km (4.8 mi) from the site. This commercial farm produced no broadleaf vegetation. The farm area was about 100 acres of land with rotational planting. Commercial crops consisted of about 100% cereal grass (oat hay) and straw grass. Less than 10 farm workers periodically occupied this area during the growing season. Additional Land Use: It should be noted that the term "site-boundary" referred to the area within a radius of approximately 1.2 km (0.74 mi) from the Unit One CTMT structure. The area outside the "site-boundary" was also referred to as the "unrestricted area". Much of the area outside the site-boundary was routinely used for rotational cattle grazing by five separate cattle operations. For purposes of this land use census, the five cattle ranches were called BLANCHARD, SINSHEIMER, READ, ANDRE, and MELLO. BLANCHARD solely allowed cattle to graze within DCPP environs in 2016. BLANCHARD did not graze any goats or sheep within 8 km (5 miles) of DCPP in 2016 due to extreme drought conditions in San Luis Obispo County. BLANCHARD's livestock were sold under the "Old Creek Ranch" label at local farmer's markets in 2016. "Old Creek Ranch" labeled meats were sampled quarterly by REMP personnel in 2016. The REMP station codes were BCM, BGM, and BSM (if available). SINSHEIMER had about 100 cattle outside the site-boundary in the NNE sector. These cattle were allowed to breed and about 90 calves were sold to mass market in 2016. READ had about 72 adult cattle and 68 calves outside the site-boundary in the NNE sector. About 68 yearling cattle were.sold to mass market in 2016. ANDRE had about 45 cattle outside the site-boundary in the ENE sector. About 45 calves were sold to mass market in 2016. ANDRE did not slaughter any cattle in 2016 for personal consumption. MELLO managed about 800 cattle outside the site-boundary in the E, ESE, and SE sectors. Harris Ranch Beef Corporation owned these cattle and sold all of them to mass market in 2016. MELLO did not slaughter any cattle in 2016 for personal consumption. Two landowners (JOHE and ANDRE) harvested wild game for personal consumption outside the site-boundary in the NNE, NE, and ENE sectors. This wild game consisted of approximately two deer per landowner.

There was a California State Park Ranger Office in the NNW sector at 7.48 kilometers (4.65 miles) from the site. Approximately three State Parks staff personnel occupied this office from 1000 to 1500 each day (365 days per year). There was a public campground (Islay Creek Campground) located in the NNW sector at Montana de Oro State Park at 7.36 kilometers (4.57 miles). This campground was near Spooner's Cove. Approximately 715,000 people visited Montana de Oro State Park via day-use permit. Approximately 22,000 people spent the night at Islay Creek Campground. There was public access to hiking trails at the north and south ends of the PG&E property in 2016. The Point Buchon Trail was located at the north end of PG&E property and had about 18,000 visitors in 2016. The trail traversed about 3.5 miles of coastline from Coon Creek to Crowbar Canyon. The trail was open to the public for day hikes Thursday thru Monday from approximately 0800-1700. Two to three people from California Land Management occupied the trail head booth near Coon Creek during operational days from 0700 to 1730. This trail was originally opened to the public on July 13, 2007. The Pecho Coast Trail was located at the south end of PG&E property and had about 3,000 visitors in 2016. The trail was approximately 3.7 miles long and led from the Avila Beach DCPP entrance gate to the Point San Luis Lighthouse property and up the coastline to Rattlesnake Canyon. Access was controlled (via web-site reservation permission only) and conducted by docents. This trail was just slightly outside the 5 mile radius of the site. Pecho Coast Trail hikes were only available on Wednesdays (about 20 people) and Saturdays (about 40 people). Thirty to forty Port San Luis Lighthouse keepers occupied the lighthouse grounds on Tuesdays, Thursdays, and Saturdays from 0800-1600. Special events were also held at the lighthouse throughout the year (e.g. weddings, fundraisers, reunions, etc). The lighthouse property was owned by the Port San Luis Harbor District. Groundwater Protection Initiative (GPI) Review: There were no site construction activities or spills that warranted changes to GPI monitoring frequencies, monitoring locations, contract lab analytical capabilities, or analytical detection thresholds in2016. There were no changes in on-site or near site groundwater usage. Groundwater beneath the site power block was not used as a source of drinking water.

Additional On-site Information: The Old Steam Generator Storage Facility (OSGSF) was located within the site-boundary in the ENE sector (68.3 degrees) at 0.99 km (0.61 mi) from Unit One CTMT. The following plant equipment was placed into the Old Steam Generator Storage Facility for the duration of the plant operating license on the dates indicated below. Unit One old steam generators (4 total) : 2/14/2009 Unit Two old steam generators (4 total) : 3/2/2008 Unit One old reactor head (1 total) : 10/23/2010 Unit Two old reactor head (1 total) : 11/6/2009 The on-site Independent Spent Fuel Storage Installation (ISFSI) pad was located within the site-boundary in the ENE sector (58.47 degrees) at 0.36 km (0.22 mi) from Unit One CTMT. DCPP loaded it's first ISFSI dry cask onto the pad on 6/23/2009. The sixth ISFSI (dry cask) loading campaign occurred from August 81h to November 12th, 2016. Twelve dry casks (six from U-1 and six from U-2) were added to the ISFSI pad in 2016. Table 8 summarizes the nearest residence location in each meteorological sector. The Land Use Figure shows the location of the residences and gardens in the vicinity ofDCPP.

Table 8 Land Use Census 2016 Distance in Kilometers (and Miles) from the center point of U-1 CTMT Nearest Milk Animal, Residence, and Vegetable Garden 22~ Degree (a) Nearest Nearest Residence Nearest Radial Sector Milk Animal Residence Azimuth Vegetable km (mi) Degree Garden km (mi) NW None 5.76 (3.58) 325.2 None NNW None 2.42 (1.5) (b) 332.0 None N None None - None NNE None 5.18 (3.22) 21.5 7.13 (4.4) (c) NE None 7.93 (4.93) 35.33 None ENE None 7.15 (4.45) 63.8 None E None 5.97 (3.71) 89.9 7.43 (4.6) (d) ESE None 5.42 (3.37) 122.0 5.31 (3.3) (e) SE None None - None Table Notation: (a) Sectors not shown contain no land (other than islets not used for the purposes indicated in this table) beyond the site-boundary. Cb) BLANCHARD trailer is the residence used for critical receptor calculations. (c) The READ (station 3Cl) vegetable garden is located in the NNE sector and located at the 20.24 azimuth degree. There is also a limited use residence at this location. (d) The KOONZE (station 6Cl) vegetable garden is located.in the E sector and located at the 97.52 azimuth degree. There is also a full time residence at this location. (e) The MELLO garden is the commercial farm along the westward side of the site access road; however, it does not produce broadleafvegetation. This farm extends from 4.8 km to 7.8 km (3 to 4.8 miles) from the plant.

NNW NW Pacific Ocean 5 Mile Radius J SE UNITS 1AND2 DIABLO CANYON SITE ~N D Gardens or Farm I 

.A. Residences 0  1 2    3 4 5 SCALE IN MILES Units 1 and 2 Diablo Canyon Power Plant Land Use Census.}}
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