Text

Transmittal of 2015 Annual Radioactive Effluent Report and Offsite Dose Calculation Manual
	ML16126A211
Person / Time
Site:	Prairie Island
Issue date:	05/05/2016
From:	Northard S; Northern States Power Co, Xcel Energy
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	L-PI-16-037
	Download: ML16126A211 (24)
	v • d • e

Xcel Energy@

L-PI-16-037 MAY 0 5 2016 TS 5.5.1.c TS 5.6.3 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Prairie Island Nuclear Generating Plant, Units 1 and 2 Docket Nos. 50-282 and 50-306 Renewed Operating License Nos. DPR-42 and DPR-60 2015 Annual Radioactive Effluent Report and Offsite Dose Calculation Manual Pursuant to the applicable Prairie Island Nuclear Generating Plant (PINGP) Technical Specifications (TS), Appendix A to Renewed Operating Licenses DPR-42 and DPR-60, and the requirements of the Offsite Dose Calculation Manual (ODCM), Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"),

submits the 2015 Annual Radioactive Effluent Report which is comprised of the following: contains the Off-Site Radiation Dose Assessment for the period January 1, 2015, through December 31, 2015, in accordance with ODCM sections 8.1.1 c, e, f, g, h, i, j, and k. contains the Annual Radioactive Effluent Report, Supplemental Information, for the period January 1, 2015, through December 31, 2015, in accordance with TS 5.6.3 and ODCM section 8.1.1 b. contains the Low Level Waste Disposal Annual Report, Solid Waste and Irradiated Component Shipments, for the period January 1, 2015, through December 31, 2015, in accordance with TS 5.6.3 and ODCM section 8.1.1d. contains the 2015 supporting data for determination of facility-related dose, including direct sources, demonstrating compliance with 40CFR190.1 0.

On May 4, 2016, PINGP identified a potential issue regarding the operability of the Waste Gas Holdup System Gas (Oxygen) Monitors listed in ODCM Table 3.2. This issue has been entered into the PINGP Corrective Action Program for evaluation. If necessary, upon completion of the evaluation, PINGP will supplement this radioactive effluent report in accordance with ODCM section 8.1.1 h.

1717 Wakonade Drive East

Welch, Minnesota 55089-9642 Telephone: 651.388.1121

Document Control Desk Page 2 Summary of Commitments This letter contains no new commitment and no revision to an existing commitment.

Scott Northard Acting Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company- Minnesota Enclosures (4) cc: Regional Administrator, USNRC, Region Ill Project Manager, Prairie Island Nuclear Generating Plant, USNRC, NRR NRC Resident Inspector- Prairie Island Nuclear Generating Plant Department of Health, State of Minnesota PI Dakota Community Environmental Coordinator

ENCLOSURE 1 OFF-SITE RADIATION DOSE ASSESSMENT January 1, 2015- December 31, 2015 5 pages to follow

Page 1 of 5 PRAIRIE ISLAND NUCLEAR GENERATING PLANT OFF-SITE RADIATION DOSE ASSESSMENT FOR January 1, 2015- December 31, 2015 An Assessment of the radiation dose due to releases from Prairie Island Nuclear Generating Plant during 2015 was performed, in accordance with the Offsite Dose Calculation Manual, and as required by Technical Specifications. Computed doses were well below the 40 CFR Part 190 Standards and 10 CFR Part 50 Appendix I Guidelines.

Off-site dose calculation formulas and historical meteorological data were used in making this assessment. Source terms were obtained from the Annual Radioactive Effluent and Waste Disposal Report and prepared for NRC review, for the year of 2015.

OFFSITE DOSES FROM GASEOUS RELEASE:

Computed doses due to gaseous releases are reported in Table 1. Critical receptor location and pathways for organ doses are reported in Table 2. Gaseous release doses are a small percentage of Appendix I Guidelines.

OFFSITE DOSES FROM LIQUID RELEASE:

Computed doses* due to liquid releases are reported in Table 1. Critical receptor information is reported in Table 2. Liquid release doses, both whole body and organ, are a small percentage of Appendix I Guidelines.

DOSES TO INDIVIDUALS DUE TO ACTIVITIES INSIDE THE SITE BOUNDARY:

Occasionally sportsmen enter the Prairie Island Site Boundary for recreational activities.

These individuals are not expected to spend more than a few hours per year within the site boundary. Commercial and recreational river traffic exists through this area.

For purposes of estimating the dose, due to recreational and river water transportation activities within the site boundary, it is assumed that the limiting dose within the site boundary would be received by an individual who spends a total of seven days per year on the river just off-shore from the plant buildings (ESE at 0.2 miles). The gamma dose from noble gas releases and the whole body and organ doses from the inhalation pathway due to Iodine 131, lodine-133, tritium and long-lived particulates were calculated for this location and occupancy time. These doses are reported in Table 1.

Critical Receptor location and pathways for organ doses are reported in Table 2.

Page 2 of 5 ABNORMAL RELEASES There were no (0) abnormal releases for 2015.

40CFR190 COMPLIANCE REMP environmental TLD results for 2015 were reviewed per ANSI/HPS N13.37-2014 methodology for determining any plant effect above ambient gamma radiation measurements. Attachment 4 demonstrates that facility-related dose for quarterly and annual exposure intervals was not detected for all measurement locations. All measurements are considered to be within the range of variations in natural background radiation.

Neutron sky shine dose from the ISFSI was evaluated. The maximum sky shine dose was determined to be 0.71 mrem, to the nearest resident, at 724 meters from the ISFSI.

Neutron sky shine dose is greater than the effluent dose to the Critical Receptor, therefore, 40CFR 190 compliance was evaluated to the location of the maximum neutron sky shine dose.

The 40CFR 190 evaluation location was determined to be direction W, at 0. 7 miles.

Dose due to gaseous effluents were calculated to the 40CFR190 evaluation location.

Gamma Direct Radiation Dose: O.OOE+OO MREM Neutron sky shine Dose: 7.1 OE-01 MREM Gamma Air Dose: 2.65E-05 MREM Beta Air Dose: 9.78E-05 MREM Iodine, particulate, H-3 and C-14 Dose: 6.26E-03 MREM*

Calculated values identical for Whole Body, Thyroid and Maximum "Other" Organs 40CFR190 DOSE EVALUATION:

40CFR190 LIMIT 40CFR190 DOSE (MREM) *-

(MREM)

WHOLE BODY 25 7.16E-01 THYROID 75 7.16E-01 OTHER ORGANS 25 7.16E-01 (TEEN- WHOLE BODY)

SAMPLING, ANALYSIS AND LLD REQUIREMENTS The lower limit of detection (LLD) requirements, as specified in ODCM Table 2.1 and 3.1 were met for 2015. The minimum sampling frequency requirements, as specified in ODCM Table 2.1 and 3.1 were met for 2015.

Page 3 of 5 MONITORING INSTRUMENTATION For 2015, there were no (0) occurrences, when less than the minimum required radioactive liquid and/or gaseous effluent monitoring instrumentation channels were operable, as required by ODCM Tables 2.2 and 3.2.

DOSES TO INDIVIDUALS DUE TO EFFLUENT RELEASES FROM THE INDEPENDENT SPENT FUEL STORAGE FACILITY (ISFSI):

Two (2) fuel casks were loaded and placed in the storage facility during the 2015 calendar year. The total number of casks in the ISFSI, as of 12/31/15, was forty (40). There was no (0) releases of radioactive effluents from the ISFSI.

CURRENT OFFSITE DOSE CALCULATIONS MANUAL (ODCM) REVISION:

The Offsite Dose Calculation Manual was not revised in 2015. The latest revision, revision 29, is dated August 22, 2014.

CRITICAL RECEPTOR Based on the Annual Land Use Census, there was no change in critical receptor.

Based on the ISFSI neutron sky shine evaluation, a second location was determined for evaluation of 40CFR190 compliance. The location was determined to be at 0.7 miles, in theW direction.

PROCESS CONTROL PROGRAM The Process Control Program for Solidification/Dewatering of Radioactive Waste from Liquid Systems (D 59) was not revised in 2015. Current manual revision is 11. The revision date is October 23, 2014. Revision 11 was submitted with the 2014 report.

SOLID WASTE SHIPMENTS A copy of the "LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS" is included as enclosure 3.

INDUSTRY INITIATIVE ON GROUND WATER PROTECTION:

There was zero (0) events for inclusion in the Annual Effluent Report, as part of the NEI Ground Water Initiative.

Page 4 of 5 Table 1 OFF-SITE RADIATION DOSE ASSESSMENT - PRAIRIE ISLAND PERIOD: JANUARY 2015 through DECEMBER 2015 10 CFR Part 50 Appendix I Guidelines (2-unit site per year)

Gaseous Releases Maximum Site Boundary Gamma Air Dose (mrad) 7.89E-05 20 Maximum Site Boundary Beta Air Dose (mrad) 3.13E-04 40 Maximum Off-site Dose to any organ (mrem)* 7.23E-02 30 Organ: Child- bone Offshore Location Gamma Dose (mrad) 1.58E-06 20 Total Body (mrem) 4.01E-03 30 Organ (mrem)* 4.01E-03 30 Organ: Teen- Total Body Liquid Releases Maximum Off-site Dose Total Body (mrem) 6 Maximum Off-site Dose 2.98E-03 20 Organ (mrem) Adult- Gi-Lli

Long-Lived Particulate, 1-131, 1-133 and Tritium

Page 5 of 5 Table 2 OFF-SITE RADIATION DOSE ASSESSMENT- PRAIRIE ISLAND SUPPLEMENTAL INFORMATION January 1, 2015 - December 31, 2015 Gaseous Releases Maximum Site Boundary Dose Location (From Building Vents)

Sector w Distance (miles) 0.36 Offshore Location Within Site Boundary Sector ESE Distance (miles) 0.2 Pathway Inhalation Maximum Off-site Sector NNW Distance (miles) 0.60 Pathways Ground, Inhalation Vegetable Age Group Child Liquid Releases Maximum Off-site Dose Location Downstream Pathway Fish

ENCLOSURE 2 ANNUAL RADIOACTIVE EFFLUENT REPORT SUPPLEMENTAL INFORMATION January 1, 2015 - December 31, 2015 8 pages to follow

Page 1 of 8 ANNUAL RADIOACTIVE EFFLUENT REPORT 01-JAN-15 THROUGH 31-DEC-15 SUPPLEMENTAL INFORMATION Facility: Prairie Island Nuclear Generating Plant Licensee: Northern States Power Company License Numbers: DPR-42 & DPR-60 A. Regulatory Limits

1. Liquid Effluents:

a. The dose or dose commitment to an individual from radioactive materials in liquid effluents released from the site shall be limited to:

for the quarter 3.0 mrem to the total body 10.0 mrem to any organ for the year 6.0 mrem to the total body 20.0 mrem to any organ

2. Gaseous Effluents:

a. The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to:

noble gases ~ 500 mrem/year total body

~3000 mrem/year skin I-131 1 I-133, H-3, LLP ~1500 mrem/year to any organ

b. The dose due to radioactive gaseous effluents released from the site shall be limited to:

noble gases ~10 mrad/quarter gamma

~20 mrad/quarter beta

~20 mrad/year gamma

~40 mrad/year beta I-131 1 I-133, H-3, LLP ~15 mrem/quarter to any organ

~30 mrem/year to any organ

Page 2 of 8 B. Effluent Concentration 1 .. Fission and activation gases in gaseous releases:

10 CFR 20, Appendix B, Table 2, Column 1

2. Iodine and particulates with half lives greater than 8 days in gaseous releases:

10 CFR 20, Appendix B, Table 2, Column 1

3. Liquid effluents for radionuclides other than dissolved or entrained gases:

10 CFR 20, Appendix B, Table 2, Column 2

4. Liquid effluent dissolved and entrained gases:

2.0E-04 uCi/ml Total Activity C. Average Energy Not applicable to Prairie Island regulatory limits.

D. Measurements and approximations of total activity

1. Fission and activation gases Total Gem +/-25%

in gaseous releases: Nuclide Gem

2. Iodines in gaseous releases: Total Gem +/-25%

Nuclide Gem

3. Particulates in gaseous releases: Total Gem +/-25%

Nuclide Gem

4. Liquid effluents Total Gem +/-25%

Nuclide Gem E. Manual Revisions

1. Offsite Dose Calculations Manual:

Latest Revision number: 29 Revision date August 22, 2014

Page 3 of 8 Prairie Island Nuclear Generating Station PI 2015 Annual Release Summary Batch Release Summary Liquid Releases Qtr 1 Qtr 2 Qtr 3 Qtr 4 Year Number of Releases: 50 50 30 47 177 Total Time for All Releases (Minutes): 3798.0 4057.0 2401.0 3597.0 13853.0 Maximum Time for All Releases (Minutes): 101.0 116.0 145.0 117.0 145.0 Average Time for All Releases (Minutes): 76.0 81.1 80.0 76.5 78.3 Minimum Time for All Releases (Minutes): 53.0 59.0 55.0 52.0 52.0 Gaseous Releases Qtr 1 Qtr 2 Qtr 3 Qtr 4 Year Number of Releases: 26 49 4 44 123 Total Time for All Releases (Minutes): 30252.0 53797.0 1805.0 61773.0 147627.0 Maximum Time for All Releases (Minutes): 2662. 0 1440.0 855.0 1440.0 2662.0 Average Time for All Releases (Minutes): 1163.5 1097.9 451.3 1403.9 1200.2 Minimum Time for All Releases (Minutes) : 120.0 80.0 74.0 485.0 74.0 Abnormal Release Summary Liquid Releases Number of Abnormal Releases: 0 Total Activity for Abnormal Releases: 0. OOE+OO Curies Gaseous Releases Number of Abnormal Releases: 0 Total Activity for Abnormal Releases: 0. OOE+OO Curies

Page 4 of 8 Prairie Island Nuclear Generating Station PI 2015 Annual Release Summary Gaseous Effluents-Summation of All Releases Est. Total Type of Effluent Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Error, %

A. Fission & Activation Gases

1. Total Release Curies 5.69E-03 4.00E-03 5.44E-03 2.20E-Ol 2.50E+Ol

2. Average Release Rate for Period pCi/sec 7.32E-04 5.09E-04 6.84E-04 2.76E-02

3. Percent of Applicable Limit % 1. 71E-04 1. 03E-04 2.54E-04 1.16E-03 B. Iodines

1. Total Iodine-131 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.50E+Ol

2. Average Release Rate for Period pCi/sec O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

3. Percent of Applicable Limit % O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

c. Particulates

1. Total Particulates (Half-lives > 8 days) Curies O.OOE+OO 1.98E-08 O.OOE+OO 2.36E-06 2.50E+Ol

2. Average Release Rate for Period pCi/sec O.OOE+OO 2.52E-09 O.OOE+OO 2.97E-07

3. Percent of Applicable Limit % O.OOE+OO 5.37E-08 O.OOE+OO 1. 70E-04

4. Gross Alpha Activity Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.50E+Ol D. Tritium

1. Total Release Curies 3.17E+OO 2.8SE+OO 4.20E+OO 6.3SE+OO 2.50E+Ol

2. Average Release Rate for Period pCi/sec 4.07E-01 3.62E-Ol 5.28E-01 7.99E-01

3. Percent of Applicable Limit % 2.33E-02 2.16E-02 3.09E-02 4.92E-02 E. Carbon-14

1. Total Release Curies 2.22E+OO 2.01E+OO 2.93E+OO 1.87E+OO 2.50E+Ol

Page 5 of 8 Prairie Island Nuclear Generating Station PI 2015 Annual Release Summary Gaseous Effluents - Ground Level Releases Continuous Mode Batch Mode Nuclides Released Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4

1. Fission and Activation Gases Ar-41 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 5.38E-04 O.OOE+OO 9.33E-04 O.OOE+OO Kr-85 Curies O.OOE+OO O.OOE+OO O.OOE+OO 8.87E-02 2.68E-03 3.27E-03 4.40E-03 O.OOE+OO Xe-13lm Curies O.OOE+OO O.OOE+OO O.OOE+OO 5.87E-05 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Xe-133 Curies O.OOE+OO O.OOE+OO O.OOE+OO 1.31E-01 2.48E-03 7.34E-04 1.07E-04 O.OOE+OO Xe-133m Curies O.OOE+OO O.OOE+OO O.OOE+OO 2.10E-04 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Xe-135 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.74E-07 2.91E-07 O.OOE+OO Total for Period Curies O.OOE+OO O.OOE+OO O.OOE+OO 2.20E-01 5. 69E-03 4.00E-03 5.44E-03 O.OOE+OO

2. Iodines Total for Period Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

3. Particulates Co-58 Curies O.OOE+OO 1. 98E-08 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Cs-137 Curies O.OOE+OO O.OOE+OO O.OOE+OO 2.36E-06 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Total for Period Curies O.OOE+OO 1.98E-08 O.OOE+OO 2.36E-06 O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

4. Tritium H-3 Curies 3.16E+OO 2.82E+OO 1.19E+OO 6.23E+OO 1. 79E-03 2.87E-02 3.46E-03 1.14E-01

5. Carbon-14 C-14 Curies 2.22E+OO 2.01E+OO 2.93E+OO 1. 87E+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

Page 6 of 8 Prairie Island Nuclear Generating Station PI 2015 Annual Release Summary Liquid Effluents - Summation of All Releases Est. Total Type of Effluent Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Error, %

A. Fission & Activation Products

1. Total Release (not including Tritium, Gases, Curies 1.80E-03 4.32E-03 1.60E-03 5. 71E-03 2.50E+01 and Alpha)

2. Average Diluted Concentration During Period pCi/ml 2 .lBE-11 4. 71E-11 1. 70E-11 6. 31E-11

3. Percent of Applicable Limit % 3.60E-02 8.65E-02 3.20E-02 1.14E-01 B. Tritium

1. Total Release Curies 3.64E+02 1.07E+02 7.14E+01 1.08E+02 2.50E+01

2. Average Diluted Concentration During Period )1Ci/ml 4.41E-06 1.16E-06 7. 60E-07 1.20E-06

3. Percent of Applicable Limit % 4.41E-01 1.16E-01 7. 60E-02 1.20E-01 C. Dissolved and Entrained Gases

1. Total Release Curies 2.23E-04 2.67E-04 1.26E-05 1.10E-04 2.50E+01

2. Average Diluted Concentration During Period )1Ci/ml 2.70E-12 2.91E-12 1. 34E-13 1. 22E-12

3. Percent of Applicable Limit % 1.35E-06 1.46E-06 6.69E-08 6.09E-07 D. Gross Alpha Radioactivity

1. Total Release Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.50E+01 E. Waste Volume Released (Pre-Dilution) Liters 3. 66E+07 5.94E+07 4.75E+07 4.42E+07 2.50E+01 F. Volume of Dilution Water Used Liters 8.26E+10 9 .17E+10 9.39E+10 9.04E+l0 2.50E+01

Page 7 of 8 Prairie Island Nuclear Generating Station PI 2015 Annual Release Summary Liquid Effluents Continuous Mode Batch Mode Nuclides Released Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Qtr 1 Qtr 2 Qtr 3 Qtr 4 Ag-llOm Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2. 67E-05 1. 41E-05 2.57E-05 5.90E-05 Ar-41 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.00E-05 5.48E-06 O.OOE+OO O.OOE+OO Co-57 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.82E-06 O.OOE+OO 3.04E-06 7.84E-06 Co-58 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.26E-03 2. llE-03 1.03E-03 3.83E-03 Co-60 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.48E-04 1.38E-04 1.55E-04 2.09E-04 Cr-51 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.22E-05 1.47E-04 O.OOE+OO 6.04E-05 Fe-59 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 3.46E-06 O.OOE+OO 2.25E-06 H-3 Curies 1. 47E-01 O.OOE+OO 7.88E-02 6.17E-02 3.64E+02 1.07E+02 7.13E+01 1.08E+02 Mn-54 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 7.48E-06 1.44E-05 O.OOE+OO 5.90E-06 Nb-95 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.87E-05 7.65E-05 O.OOE+OO 4.35E-06 Nb-97 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1.78E-05 2.48E-05 5.06E-06 1.64E-05 Ni-63 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 7. 72E-04 3.78E-04 1.22E-03 Sb-125 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.29E-04 9.70E-04 3.58E-06 2.85E-04 Sr-92 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 4.94E-06 3.52E-06 O.OOE+OO 1. 73E-06 Te-123M Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 5.62E-05 O.OOE+OO O.OOE+OO 9.09E-06 W-187 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.08E-06 Xe-133 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 1. 93E-04 2.49E-04 1. 26E-05 1.02E-04 Xe-135 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 2.06E-05 1. 24E-05 O.OOE+OO 8.64E-06 Zr-95 Curies O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO 7.89E-06 5 .13E-05 O.OOE+OO 3.52E-06 Total for Period Curies 1.47E-01 O.OOE+OO 7.88E-02 6.17E-02 3.64E+02 1.07E+02 7. 13E+01 1.08E+02

Page 8 of 8 Prairie Island Nuclear Generating Station 2015 Annual Dose Summary Gaseous Effluents Parameter Location Dose Dose Limit % of Limit Qtr l Gamma Air Dose (mrad) 0.58 km W l. 71E-05 l.OOE+Ol 0.00 Beta Air Dose (mrad) 0.58 km W 2.76E-05 2.00E+Ol 0.00 Total Body Dose (mrem) 0.58 km W 1. 59E-05 5.00E+OO 0.00 Skin Dose (mrem) 0.58 km W 3.55E-05 1.50E+Ol 0.00 Max Organ Dose (mrem) 0.97 km NNW 3.49E-03 1.50E+Ol 0.02 Child - Liver Qtr 2 Gamma Air Dose (mrad) 0.58 km W 9 .llE-07 l.OOE+Ol 0.00 Beta Air Dose (mrad) 0.58 km W 2.06E-05 2.00E+Ol 0.00 Total Body Dose (mrem) 0.58 km W 7.76E-07 5.00E+OO 0.00 Skin Dose (mrem) 0.58 km W 1. 43E-05 1.50E+Ol 0.00 Max Organ Dose (mrem) 0.97 km NNW 2.40E-02 1.50E+Ol 0.16 Child - Bone Qtr 3 Gamma Air Dose (mrad) 0.58 km W 2.54E-05 l.OOE+Ol 0.00 Beta Air Dose (mrad) 0.58 km W 3.39E-05 2.00E+Ol 0.00 Total Body Dose (mrem) 0.58 km W 2. 41E-05 5.00E+OO 0.00 Skin Dose (mrem) 0.58 km W 5.22E-05 1.50E+Ol 0.00 Max Organ Dose (mrem) 0.97 km NNW 4.83E-02 1.50E+Ol 0.32 Child - Bone Qtr 4 Gamma Air Dose (mrad) 0.58 km W 3.56E-05 l.OOE+Ol 0.00 Beta Air Dose (mrad) 0.58 km W 2.31E-04 2.00E+Ol 0.00 Total Body Dose (mrem) 0.58 km W 2.97E-05 5.00E+OO 0.00 Skin Dose (mrem) 0.58 km W 1. 58E-04 1.50E+Ol 0.00 Max Organ Dose (mrem) 0. 97 km NNW 7.41E-03 1. 50E+01 0.05 Child - Liver Year Gamma Air Dose (mrad) 0.58 km W 7.89E-05 2.00E+01 0.00 Beta Air Dose (mrad) 0.58 km W 3.13E-04 4.00E+01 0.00 Total Body Dose (mrem) 0.58 km W 7.05E-05 1.00E+01 0.00 Skin Dose (mrem) 0.58 km W 2.60E-04 3.00E+Ol 0.00 Max Organ Dose (mrem) 0. 97 km NNW 7.23E-02 3.00E+01 0.24 Child - Bone Liquid Effluents Parameter Max Receptor Dose Dose Limit % of Limit Qtr 1 Max Organ Dose (mrem) Adult - Gi-LLi 1. 62E-03 1.00E+01 0.02 Total Body Dose (mrem) Adult - Total Body 1.56E-03 3.00E+OO 0.05 Qtr 2 Max Organ Dose (mrem) Adult - Gi-LLi 6.52E-04 l.OOE+Ol 0.01 Total Body Dose (mrem) Adult - Total Body 5.24E-04 3.00E+OO 0.02 Qtr 3 .Max Organ Dose (mrem) Adult - Gi-LLi 1.59E-04 1.00E+Ol 0.00 Total Body Dose (mrem) Adult - Total Body 1.42E-04 3.00E+OO 0.00 Qtr 4 Max Organ Dose (mrem) Adult - Bone 6.61E-04 1.00E+Ol 0.01 Total Body Dose (mrem) Adult - Total Body 4.31E-04 3.00E+OO 0.01 Year Max Organ Dose (mrem) Adult - Gi-LLi 2.98E-03 2.00E+01 0.01 Total Body Dose (mrem) Adult - Total Body 2.66E-03 6.00E+OO 0.04

ENCLOSURE 3 LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS January 1, 2015- December 31, 2015 4 pages to follow

PINGP 753, Rev. 10

Reference:

RPIP 1314 Page 1 of 4 Doc Type/Sub Type: RPC/DATA Retention: Lifetime+

PRAIRIE ISLAND NUCLEAR GENERATING PLANT Period: 1/01/15 to 12/31/15 NORTHERN STATES POWER License No. DPR-42/60 LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (NOT IRRADIATED FUEL)

1. Solid Waste Total Volumes, Total Curie Quantities, and Major Nuclides:

5.08E+OO 1.05E+01 1.25E+01 3.70E+02 1.05E+01 4.00E+01 1.40E+03 3.97E+01 5.76E+01 Major Nuclides for the Above Table:

Fe-55,Co-58,Co-60,Ni-63

,p&~~gtJV~.\iy~si~

~w~~t~f

~ ~, "_ '* *

~crt~~~

O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

. . 3.58E+04 1.01E+03 3.19E-01 Major Nuclides for the Above Table:

Fe-55, Co-58, Co-60, Ni-63,Zr-95, Nb-95,Sb-125

PINGP 753, Rev. 10 Page 2 of 4 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Period: 1/01/15 to 12/31/15 NORTHERN STATES POWER License No. DPR-42/60 LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (NOT IRRADIATED FUEL) [continued]

O.OOE+OO .

O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO Major Nuclides for the Above Table:

9~t~~f{Vif~51 ~~- .

~- .;

O.OOE+OO O.OOE+OO O.OOE+OO O.OOE+OO

~"*'<.'*.'**-

O.OOE+OO O.OOE+OO Major Nuclides for the Above Table:

PINGP 753, Rev. 10 Page 3 of 4 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Period: 1/01/15 to 12/31/15 NORTHERN STATES POWER License No. DPR742/60 LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (NOT IRRADIATED FUEL) [continued]

5.40E+OO 1.05E+01 1.25E+01 1.05E+01 4.00E+01 1.05E+03 5.79E+01 Major Nuclides for the Af]ove Table:

Fe-55, Co-58, Co-60, Ni-63

PINGP 753, Rev. 10 Page 4 of 4 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Period: 1/01/15 to 12/31/15 NORTHERN STATES POWER License No. DPR-42/60 LOW LEVEL WASTE DISPOSAL ANNUAL REPORT SOLID WASTE AND IRRADIATED COMPONENT SHIPMENTS B. PROCESS CONTROL PROGRAM CHANGES (NOT IRRADIATED FUEL) [continued]

2. Process Control for Solidification/Dewatering of Radioactive Waste from Liquid Systems Current Revision Number: 11 Effective Date: 10/23/2014

~--------------- -~==~--~-----

Changes/Justification:

None

ENClOSURE 4 2015 Facility-Related Dose 1 page to follow

2015 Prairie Island Determination of Facility-Related Dose Annual Annual Facility Quarterly Annual Monitoring Dose**,

Monitoring Baseline, Normalized Quarterly Monitoring Data, Mo Quarterly Facility Dose* Fo =Mo -Bo Baseline, BA Data, MA FA=: MA- BA Location Bo(mR) (mR per standard quarter) (mR) (mR) (mR) (mR) 1 2 3 4 1 2 3 4 1A 13.8 14.5 15.3 13.3 15.7 NO NO ND ND 55.2 58.8 ND 2A 14.9 13.6 16.2 13.4 18.2 ND NO ND ND 59.7 61.4 NO 3A 16.1 13.5 13.7 15.6 14.7 ND ND NO ND 64.4 57.5 ND 4A 16.5 15.2 15.3 15.1 19.6 ND NO NO NO 65.9 65.2 NO 5A 16.5 16.2 17.8 15.4 19.7 ND NO NO NO 65.9 69.1 NO 6A 17.3 13.2 17.3 14.4 20.9 NO NO NO NO 69.3 65.8 NO

?A 17.0 12.3 15.4 13.6 20.5 NO ND NO NO 68.0 61.8 NO 8A 15.8 13.3 16.5 14.2 18.4 NO NO ND NO 63.1 62.4 NO 9A 16.0 13.5 13.7 14.9 14.3 NO ND ND NO 64.0 56.4 NO 10A 15.2 12.6 16.1 13.4 17.1 NO NO ND NO 60.6 59.2 ND 18 17.3 16.4 18.0 17.0 19.3 NO NO ND ND 69.3 70.7 ND 28 17.6 16.7 17.1 16.8 20.9 NO NO NO NO 70.4 71.5 ND 38 17.5 15.8 18.1 19.4 19.7 ND NO NO ND 70.2 73.0 ND 48 18.4 17.6 17.0 19.9 18.1 ND NO NO NO 73.6 72.6 NO 58 13.9 13.0 15.5 14.2 16.6 ND ND NO ND 55.8 59.3 NO 68 14.5 13.6 14.2 15.2 14.6 ND NO NO NO 57.9 57.6 NO 78 13.9 15.2 13.1 16.2 18.8 ND NO NO NO 55.5 63.3 NO 88 15.4 16.5 15.0 17.6 15.8 NO NO NO NO 61.4 64.9 NO 98 15.1 12.4 15.1 14.0 16.2 ND ND NO NO 60.3 57.7 NO 108 16.7 13.5 16.0 15.7 17.6 ND ND NO NO 66.9 62.8 NO 118 17.5 12.0 18.4 15.5 20.3 ND NO NO NO 70.1 66.2 NO 128 17.9 14.1 17.6 17.1 18.3 ND NO NO NO 71.8 67.1 NO 138 16.5 14.3 16.7 16.7 18.7 ND NO NO NO 65.8 66.4 NO 148 17.1 15.4 15.4 16.7 16.2 ND NO NO NO 68.3 63.7 NO 158 17.1 14.4 15.7 16.1 19.3 ND NO NO ND 68.2 65.5 ND 1S 14.2 13.6 12.9 15.0 13.8 NO NO ND ND 56.6 55.3 ND 2S 16.2 14.1 14.1 15.1 14.1 NO NO ND ND 64.7 57.4 NO 3S 17.9 14.4 18.0 15.4 18.0 NO NO ND NO 71.7 65.8 NO 4S 17.4 14.9 15.9 17.3 16.3 NO NO NO NO 69.8 64.4 ND 5S 13.9 14.8 13.7 15.1 12.3 NO ND NO NO 55.4 55.9 NO 6S 14.2 13.2 13.3 15.5 14.7 NO ND NO NO 56.8 56.7 NO

?S 15.0 14.7 12.4 15.5 17.1 NO ND NO NO 59.9 59.7 NO 8S 14.2 13.5 12.6 16.2 19.0 NO ND NO NO 56.7 61.3 NO Control 16.3 15.6 18.8 16.5 18.8 NO ND NO NO 65.4 69.7 NO

=

NO Not detected, where Mo s (Bo + MODo) and MODo =3 X 90th percentile location for quarterly data

=

- NO Not detected, where MAs (BA + MDDA) and MDDA =3 X 90th percentile location for annual data

Xcel Energy@

L-PI-16-037 MAY 0 5 2016 TS 5.5.1.c TS 5.6.3 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Prairie Island Nuclear Generating Plant, Units 1 and 2 Docket Nos. 50-282 and 50-306 Renewed Operating License Nos. DPR-42 and DPR-60 2015 Annual Radioactive Effluent Report and Offsite Dose Calculation Manual Pursuant to the applicable Prairie Island Nuclear Generating Plant (PINGP) Technical Specifications (TS), Appendix A to Renewed Operating Licenses DPR-42 and DPR-60, and the requirements of the Offsite Dose Calculation Manual (ODCM), Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy (hereafter "NSPM"),

submits the 2015 Annual Radioactive Effluent Report which is comprised of the following: contains the Off-Site Radiation Dose Assessment for the period January 1, 2015, through December 31, 2015, in accordance with ODCM sections 8.1.1 c, e, f, g, h, i, j, and k. contains the Annual Radioactive Effluent Report, Supplemental Information, for the period January 1, 2015, through December 31, 2015, in accordance with TS 5.6.3 and ODCM section 8.1.1 b. contains the Low Level Waste Disposal Annual Report, Solid Waste and Irradiated Component Shipments, for the period January 1, 2015, through December 31, 2015, in accordance with TS 5.6.3 and ODCM section 8.1.1d. contains the 2015 supporting data for determination of facility-related dose, including direct sources, demonstrating compliance with 40CFR190.1 0.

On May 4, 2016, PINGP identified a potential issue regarding the operability of the Waste Gas Holdup System Gas (Oxygen) Monitors listed in ODCM Table 3.2. This issue has been entered into the PINGP Corrective Action Program for evaluation. If necessary, upon completion of the evaluation, PINGP will supplement this radioactive effluent report in accordance with ODCM section 8.1.1 h.

1717 Wakonade Drive East

Welch, Minnesota 55089-9642 Telephone: 651.388.1121