Text

Annual Radiological Environmental Operating Report for Calendar Year 2016
	ML17121A302
Person / Time
Site:	Saint Lucie
Issue date:	04/17/2017
From:	Snyder M; Florida Power & Light Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	L-2017-053
	Download: ML17121A302 (98)
	v • d • e

APR 17 2017 L-2017-053 10 CFR 50.4 10 CFR50.36 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 RE: St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 Annual Radiological Environmental Operating Report for Calendar Year 2016 The enclosed report is being submitted pursuant to Technical Specification 6.9.1.8.

The Annual Radiological Environmental Operating Report provides information summaries and analytical results of the Radiological Environmental Monitoring Program (REMP) for calendar year 2016.

Please contact us should there be any questions regarding this report.

Sincerely, r~'P Michael J. Snyder Licensing Manager St. Lucie Plant

Enclosure:

_ 2016 Annual Radiological Environmental Operating Report (97 pages)

MJS/tlt Florida Power & Light Company 6501 S. Ocean Drive, Jensen Beach, FL 34957

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT UNITS 1 & 2 LICENSE NOS. DPR-67, NPF-16 DOCKET NOS. 50-335, 50-389 Data Submitted by: Florida DOH

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE OF CONTENTS DESCRIPTION PAGE Introduction 1

. Radiological Environmental Monitoring Program 1 Discussion and Interpretation of Results 3 Environmental Raqiological Monitoring Program Annual Summary TABLE 1 Deviations I Missing Data TABLE 1A Analyses with LLDs Above Required Detection Capabilities TABLE 1B Land Use Census TABLE 2 Key to Sample Locations ATTACHMENT A Radiological Surveillance of Florida Power and Light Company's St. Lucie Site ATTACHMENT B First Quarter 2016 Second Quarter 2016 Third Quarter 2016 Fourth Quarter 2016 Results from the lnterlaboratory Comparison Program 2016 ATTACHMENT C Ground Water Protection, Industry Initiative ATTACHMENT D

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 I. INTRODUCTION This report is submitted pursuant to Specification 6.9.1.8 of St. Lucie Unit 1 and St. Lucie Unit 2 Technical Specifications. The Annual Radiological Environmental Operating Report provides information, summaries and analytical results pertaining to the radiological environmental monitoring program for the calendar year indicated. This report covers surveillance activities meeting the requirements of Unit 1 and Unit 2 Technical Specifications.

II. RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM A. Purpose The purpose of the radiological environmental monitoring program is to provide representative measurements of radiation and of radioactive materials in those exposure pathways and for those radionuclides which lead to the highest potential radiation exposures to members of the public resulting from station operation. The radiological environmental monitoring program also supplements the radiological effluent monitoring program by verifying that the measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and the modeling of the environmental exposure pathways.

B. Program Description The radiological environmental monitoring program (REMP) for the St. Lucie Plant (PSL) is conducted pursuant to the St. Lucie Units 1 and 2 Offsite Dose Calculation Manual (ODCM) Section 3/4.12.1, Monitoring Program.

1. Sample Locations, Types and Frequencies:

a. Direct radiation gamma exposure rate is monitored continuously at 27 locations by thermoluminescent dosimeters (TLDs). TLDs are collected and analyzed quarterly.

b. Airborne radioiodine and particulate samplers are operated continuously at five locations. Samples are collected and analyzed weekly. Analyses include lodine-131, gross beta, and gamma isotopic measurements.

c. Surface water samples are collected from two locations. Samples are collected and analyzed weekly and monthly, respectively. Analyses include gamma isotopic and tritium measurements.

d. Shoreline sediment samples are collected from two locations coinciding with the locations for surface water samples. Samples are collected and analyzed semi-annually. Sediment samples are analyzed by gamma isotopic measurements.

e. Fish and invertebrate samples are collected from two locations. Samples are collected and analyzed semi-annually. Fish and invertebrate samples are analyzed by gamma isotopic measurements.

f. Broad leaf vegetation samples are collected from three locations. Samples are collected and analyzed monthly. Broad leaf vegetation samples are analyzed by gamma isotopic measurements.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Attachment A provides specific information pertaining to sample locations, types and frequencies.

Note: Ground Water Protection, NEI Initiative: The program and results are described in Attachment D

2. Analytical Responsibility:

Radiological environmental monitoring for the St. Lucie Plant is conducted by the State of Florida, Department of Health (DOH), Bureau of Radiation Control (BRC).

Samples are collected and analyzed by DOH personnel.

Samples are analyzed at the DOH BRC Environmental Radiation Control Laboratory in Orlando, Florida.

C. Analytical Results Table 1, Environmental Radiological Monitoring Program Annual Summary provides a summary for all specified samples collected during the referenced surveillance period.

Deviations from the sample schedule or missing data, if any, are noted and explained in Table 1A. Samples not meeting the specified "A PRIORI" LLD, if any, are noted and explained in Table 1B. Analysis data for all specified samples analyzed during the surveillance period is provided in Attachment B.

D. Land Use Census A Land Use Census Survey out to a distance of a five mile radius from the St. Lucie Plant is conducted annually to determine the location of the nearest milk animal, residence, and garden producing broad leaf vegetation, in each of the 16 meteorological sectors. A summary of the Land Use Census for the surveillance year is provided in Table 2, Land Use Census Summary.

E. lnterlaboratorv Comparison Program The interlaboratory comparison program consists of participating in the DOE Mixed Analyte Performance Evaluation Program (MAPEP).

This program provides similar testing (matrices, nuclides, and levels) as the former EPA lnterlaboratory Comparison Program and is referred to as the Mixed Analyte Performance Evaluation Program (MAPEP).

The samples are analyzed using the methods applicable to the REMP (Gamma Spectroscopy, Gross Beta, and Tritium for Water).

From the MAPEP handbook:

Acceptance criteria were developed from a review of precision and accuracy data compiled by other performance evaluation programs (PEPs), the analytieal methods literature, from several MAPEP pilot studies, and from what is considered reasonable, acceptable, and achievable for routine analyses among the more experienced laboratories.

The results for nuclides associated with the REMP are listed in ATTACHMENT C, RESULTS FROM THE INTERLABORATORY COMPARISON PROGRAM.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Ill. DISCUSSION AND INTERPRETATION OF RESULTS A. Reporting of Results The Annual Radiological Environmental Operating Report contains the summaries, interpretations and information required by St. Lucie Plant ODCM. Table 1 provides a summary of the measurements made for the nuclides required by ODCM, Table 4.12-1, for all samples specified by Table 3.12-1. In addition, summaries are provided for other nuclides identified in the specified samples, including those not related to station operation.

These include nuclides such as K-40, Th-232, Ra-226, and Be-7, which are common in the Florida environment.

B. Interpretation of Results

1. Direct Radiation: The results of direct radiation monitoring are consistent with past measurements for the specified locations. The exposure rate* data shows no indication of any adverse trends attributed to effluents from the plant. The measured exposure rates are consistent with exposure rates that were observed during the pre-operational surveillance program.

The BRC has performed a comprehensive investigation to determine the cause of a potential decreasing Direct Exposure TLD trend at St. Lucie. Results indicate that TLDs may be experiencing age related degradation. The BRC will start to replace the TLD inventory in the first quarter of 2017. A site tracking action has been generated to track the issue to ensure closure.

Direct radiation monitoring results are summarized in Table 1 and are trended in Figure 1 below.

2. Air Particulates/Radioiodine:

For results attributed to plant effluents: The results for radioactive air particulate and radioiodine monitoring are consistent with past measurements and indicate no trends attributed to plant effluents. All samples for radioiodine yielded no detectable 1-131. Gamma isotopic measurements yielded no indication of any nuclides attributed to station operation. The results for air particulate/radioiodine samples are consistent with measurements that were made during the pre-operational surveillance program.

Air particulate and radioiodine monitoring results are summarized in Table 1 and are trended in Figure 2 below.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Figure 1 - St Lucie Dir,ect Radiation Gamma Ex posure (via TLD) 1 8.0 7.0

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2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Figure 2 - St. Lucie 2016 REMP Program Gross Beta in Air, pCi/ml 0.040 0.035 '*

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2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2

3. Waterborne, Surface Water:

The results for radioactivity measurements in surface water are consistent with past measurements and with measurements made during the pre-operational surveillance program. Tritium was reported as present in 2 of the 52 ODCM required samples for the indicator location and none of the 12 samples of the control location surface water samples collected. The highest value was 27.5% of the required lower limit of detection and 2; 75% of the reporting level listed in ODCM Table 4.12-1. There were no indications of any other nuclides that could be attributed to plant effluents. Results are summarized in Table 1.

4. Waterborne, Sediment and Food Products:

The results for radioactivity measurements in waterborne sediment, fish, and crustacean samples are consistent with past measurements and with measurements made during the pre-operational surveillance program. Forthe Fish Ingestion Pathway, Cs-137 was not reported for the two samples at the indicator location as well as the 2 samples at the control location. There were no indications of any other nuclides that could be attributed to plant effluents. A deviation from the ODCM required REMP Program sample schedule was identified that a semi-annual crustacea sample for the second half of the year 2016 was not obtained. Results for the waterborne sediment, fish, andcrustacea samples are summarized in Table 1.

5. Broad Leaf Vegetation:

The results for radioactivity measurements in broad leaf vegetation are consistent with past measurements and with measurements made during the pre-operational surveillance program. Cs-137 was reported as present in 1 of the 24 ODCM required samples for the two indicator locations. The highest value was 8.75% of the required lower limit of detection and 0.35% of the reporting level listed in ODCM Table 3.12-2. There were no indications of any other nuclides that could be attributed to plant effluents. Results for broad leaf vegetation samples are summarized in Table 1.

6. Land Use Census:

There were no additions or changes identified in the Land Use Census as compared to last year's report.

No locations yielding a calculated dose or dose commitment greater than the values currently being calculated were identified by the Land Use Census.

No locations yielding a calculated dose or dose commitment (via the same exposure pathway) 20 percent greater than locations currently being sampled in the radiological environmental monitoring program were identified by the Land Use Census.

The Land Use Census is summarized in Table 2.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT sr. LUCIE PLANT - UNITS 1 & 2

7. lnterlaboratory Comparison Program:

The State of Florida laboratory participated in MAPEP 34 and 35. These satisfied the requirements as directed in the PSL Offsite Dose Calculation Manual (ODCM) for the lnterlaboratory Comparison Program.

The results are listed in Attachment C.

C. Conclusions The data obtained through the St. Lucie Plant Radiological Environmental Monitoring Program verifies that the levels of radiation and concentrations of radioactive materials in environmental samples, representing the highest potential exposure pathways to members of the public, are not being increased. Measured exposure rates are consistent with exposure rates that were observed during the pre-operational surveillance program.

Results for air particulate/radioiodine samples are consistent with measurements that were made during the pre-operational surveillance program.

The highest value for tritium in surface water was 27 .5% of the required lower limit of detection and 2.75% of the reporting level listed in ODCM Table4.12-1. There were no indications of any other nuclides that could be attributed to plant effluents.

The highest value for Cs-137 in broad leaf vegetation was 8. 75% of the required lower limit of detection and 0.35% of the reporting level listed in ODCM Table 4.12-1. There were no indications of any other nuclides that could be attributed to plant effluents.

There were no indications in the waterborne sediment or food products of any other nuclides that could be attributed to plant effluents.

The measurements verify that the dose or dose commitment to members of the public, due to operation of St. Lucie Units 1 and 2, during the surveillance year, are well within "as low as reasonably achievable" (ALARA) criteria established by 10 CFR 50, Appendix I.

TABLE 1 Page 1of8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: DIRECT RADIATION SAMPLES COLLECTED: TLD UNITS: micro-R/hr Location with Highest Annual Mean 0

Name Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Range Control Locations Analyses Performed Detection a (LLD) Locations Direction Mean (f)b Range Mean (f)b Range

. d Exposure 3.65 (102/104) WNW-5 4.65 (4/4) 3.57 (4/4)

Rate, 108 2.65 - 7.93 5.1 mi., WNW 3.45 - 7.93 3.20 - 3.81 Number of Non-Routine Reported Measurements = 0

TABLE 1 Page 2 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: AIRBORNE SAMPLES COLLECTED: RADIOIODINE AND PARTICULATES 3

UNITS: PICO - Ci/M Location with Highest Annual Mean Name c Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Range Control Locations Analyses Performed Detection a (LLD) Locations Direction Mean (f)b Range Mean (f)b Range 131 1 260 0.012 <MDA <MDA Gross Beta, 260 0.0064 0.0128 (258/260) H-14 0.014 (52/52) 0.014 (52/52) 0.0050 - 0.0360 1 mi., SE 0.005 - 0.031 0.004 - 0.029 Composite Gamma Isotopic, 20 7 0.0006 0.1513 (14/16) H-14 0.1782 (4/4) 0.1635 (4/4).

Be 0.0984 - 0.1919 1 mi., SE 0.1639- 0.1919 0.1544 - 0.1816 0.0008 <MDA <MDA <MDA <MDA 0.0008 <MDA <MDA <MDA <MDA 0.0176 (8/16) H-34 0.0256 (2/4) 0.0143 (3/4) 0.0126 - 0.0386 0.5mi., N 0.0126 - 0.0386 0.0.111 - 0.0181 Be-7 & Pb-21 Oare naturally occurring.

Number of Non-Routine Reported Measurements = O

TABLE 1 Page 3 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31, 2016 (County, State)

PATHWAY: WATERBORNE SAMPLES COLLECTED: SURFACE WATER UNITS: PICO - Ci/LITER Location with Highest Annual Mean Namec Mean (f)b Lower Limit of All Indicator Distance & Direction Range Control Locations Type and Total Number of Detectiona (LLD) Locations Mean (f)b Range Analyses Performed Mean (f)b Range 172 466 (2/52) H-15 466 (2/52) <MDA (0/12)

Tritium, 64 109 - 823 <1 mi., ENE/E/ESE 109-823 Gamma Isotopic, 64 380 (52/52) H-15 380 (52/52) 382 (12/12) 40K 58 321 -471 <1 mi., ENE/E/ESE 321-471 331 - 444 54Mn 3 <MDA <MDA sgFe .6 <MDA <MDA ssco 3 <MDA <MDA eoco 4 <MDA <MDA eszn 7 <MDA <MDA 95 6-3 <MDA <MDA Zr-Nb 1311 4 <MDA <MDA 134Cs 4 <MDA <MDA 137 4 <MDA <MDA Cs 140 9-3 <MDA <MDA Ba-La K-40 is naturally occurring.

Number of Non-Routine Reported Measurements = O

TABLE 1 Page 4 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: WATERBORNE SAMPLES COLLECTED: SHORELINE SEDIMENT UNITS: PICO - Ci/Kg, DRY Location with Highest Annual Mean Namec Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f)b Range Mean (f)b Range Gamma Isotopic, 4

. 7Be 56 30 (1/2) H-15 30 (1/2) . <MDA

<1 mi., ENE/E/ESE 4oK 100 681 (2/2) H-15 681 (2/2) 155 (2/2) 340 - 1022 <1 mi, ENE/E/ESE 340 -1022 131-178 ssco 6 <MDA <MDA eoco 7 <MDA <MDA 134Cs 7 <MDA <MDA 137Cs 7 <MDA <MDA 210pb 270 (2/2) H-15 270 (2/2) 379 (1/2) 256-284 <1 mi., ENE/E/ESE 256 -284 22eRa 15 496 (2/2) H-15 496 (2/2) 408 (2/2) 402 - 590 <1 mi., ENE/E/ESE 402 - 590 366- 450 232Th 25 77 (2/2) H-15 77 (2/2) 57 (1/2) 58-96 <1 mi., ENE/E/ESE 58-96 23su 37 (1/2) H-15 37 (1/2) 28 (1/2) 23BLJ 247 (2/2) H-15 247 (2/2) 217.5 (2/2) 218 - 276 <1 ml., ENE/E/ESE 218 - 276 207 - 228 Be-7, K-40, Pb-210, Ra-226, Th-232, U-235 & U-238 are naturally occurring. Number of Non-Routine Reported Measurements= O

TABLE 1 Page 5 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED: CRUSTACEA UNITS: PICO - Ci/Kg, WET Location with Highest Annual Mean Namec Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detection 2 (LLD) Locations Mean (f)b Range Mean (f)b Range Gamma Isotopic, 4 4oK 270 1376 (1/2) H-15 1376(1/2) 1752 (2/2)

<1 mi., NE/ENE/E 1633 -1871 s4Mn 16 <MDA <MDA ssFe 28 <MDA <MDA SB Co 15 <MDA <MDA soco 16 <MDA <MDA sszn 32 <MDA <MDA 134Cs 16 <MDA <MDA 137Cs 18 <MDA <MDA 22sRa 300 <MDA <MDA 220Ra 58 <MDA <MDA K-40, Ra-226 & Ra-228 are naturally occurring.

Number of Non-Routine Reported Measurements =0

TABLE 1 Page 6 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED: FISH UNITS: PICO - Ci/Kg, WET Location with Highest Annual Mean Name 0 Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f)b Range Mean (f)b Range Gamma Isotopic, 4 4oK 270 1885 (2/2) H-15 1885 (2/2) 2143 (2/2) 1370 - 2399 <1 mi., ENE/E/ESE 1370 - 2399 2030-2255 s4Mn 16 <MDA <MDA ssFe 28 <MDA <MDA saco 15 <MDA <MDA so co 16 <MDA <MDA sszn 32 <MDA <MDA 134Cs 16 <MDA <MDA 137Cs 18 <MDA <MDA K-40 is naturally occurring.

Number of Non-Routine Reported Measurements =0

TABLE 1 Page 7 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED: BROAD LEAF VEGETATION UNITS: PICO - Ci/Kg, WET Location with Highest Annual Mean Namec Mean (f)b Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f)b Range Mean (f)b Range Gamma Isotopic, 36 7

Be 64 1234 (24/24) H-51 1490 (12/12) 998 (12/12) 593 -2263 1 mi., N/NNW 593 -2263 393 -2170 4oK 120 4127 (24/24) H-51 4178 (12/12) 3587 (12/12) 2874- 5400 1 mi., N/NNW 2876- 5400 2700-4324 5aCo 6 <MDA <MDA eoCo 8 <MDA <MDA 1311 8 <MDA <MDA 134Cs 8 <MDA <MDA 137 Cs 8 7 (1/24) H-52 7 (1/12) <MDA 1 mi., S/SSE 210Pb 370 (7/24) H-51 483 (4/12) 290 (1/12) 134-1151 1 mi., N/NNW 238-1151 212pb 25 (2/24) H-52 29 (1/12) <MDA 20-29 1 mi., S/SSE 22eRa 189 <MDA <MDA Be-7, K-40, Pb-210, Pb-212, & Ra-226 are naturally occurring.

Number of Non-Routine Reported Measurements = O

TABLE 1 Page 8 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facility St. Lucie Units 1 & 2 , Docket No(s). 50-335 & 50-389 Location of Facility St. Lucie. Florida , Reporting Period January 1 - December 31. 2016 (County, State)

NOTES

a. The LLD is an "a priori" lower limit of detection which establishes 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.

LLDs in this column are at time of measurement. The MDAs reported in Attachment B for the individual samples have been corrected to the time of sample collection.

b. Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f).

c. Specific identifying information for each sample location is provided in Attachment A.

d. Results were based upon the average net response of three elements in a TLD (thermoluminescent dosimeter).

MDA refers to minimum detectable activity.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 1A DEVIATIONS I MISSING DATA There were several instances of missing data and air sampler partial run times as follows:

A) Pathway: Airborne, Particulates and Radioiodines Location: H34, 0.5 miles N Dates: 1/12/16 - 1/19/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: Air sampling pump was not operational upon discovery during routine weekly sampling; estimated sampling duration of 165 out of 170.1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months sampling period.

Corrective Action: Replaced pump; verified equipment as operable.

B) Pathway: Airborne, Particulates and Radioiodines Location: H34, 0.5 miles N Dates: 3/22/16 - 3/29/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: Air Sampler had intermittent power loss and run time upon discover during routine weekly sampling.

Power was lost from 3/27 /16 at 15:55 to 3/28/16 at 15:00 as a result of in-progress construction activities. Estimated run time for the week was 70.4 hrs out of 145.0 hrs.

Corrective Action: Power was restored to H34: Verified equipment as operable.

C) Pathway: Airborne, Particulates and Radioiodines Location: H14, 1 miles S Dates: 9/14/16 - 9/16/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: It was discovered during routine weekly sampling that the brass coupling was separated and had

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 come apart; result was little if any deposition on the particulate filter. The filter coupling must not have snapped together completely and separated soon after start of collection. Estimated run time was 0 hrs for the week due to the complete loss of data.

Corrective Action: The filter coupling was properly reconnected and immediately returned to service; verified equipment as operable. Worker was coached to reinforce the correct method for reconnecting the coupling to prevent reoccurrence.

D) Pathway: Airborne, Particulates and Radioiodines Location: H30, 2 miles W Dates: 10/6/16 - 10/26/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: Power was lost at the air sample station on 10/6/16 as a result of Hurricane Matthew. Estimated run time for the week of 10/10/16 was 60 out of 145 hours0.00168 days 0.0403 hours 2.397487e-4 weeks 5.51725e-5 months . There was no power and no sample collected until power was restored on 10/26/16. The power meter can and overhead service at the

.location needed complete rebuilding by Power Distribution as a result of hurricane damage for return to service.

Corrective Action: Power meter and overhead service was repaired.

E) Pathway: Airborne, Particulates and Radioiodines Location: H30, 2 miles W Dates: 11 /14/16 - 11 /22/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: Air sampling pump was not operational upon discqvery during routine weekly sampling; estimated sampling duration of 108.5 out of 193.1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months sampling period.

Corrective Action: Replaced pump; verified equipment as operable.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 F) Pathway: Direct Radiation Location: TLD: Locations W-10 and SW-10 Dates: 11/22/16 -11/29/16 Deviation: Failure to Perform Continuous Monitoring Description of Problem: Two of the total 26 Direct Exposure TLDs were missing upo,n discovery during routine quarterly sampling in Qtr 3 2016; data was unrecoverable.

Both TLDs were removed and disposed of during routine servicing of the poles by the utility's contractor.

Corrective Action: The BRC immediately deployed two new TLD/cricket cages on utility poles at both locations.

The BRC is designing TLD/cricket cages to include larger, more easily seen placards to prevent inadvertent moving or disposing of TLDs.

Completed communication with the utility contractor of the importance to not remove or touch the TLD/cricket cages.

G) Pathway: Ingestion, Fish and Invertebrates, Crustacea Location: H-15, <1 mile ENE/E/ESE, Ocean side vicinity of public beaches east side of St. Lucie Plant Dates: Second Semi-Annual Sample Deviation: Failure to Perform Environmental Surveillance due to Storm Activity and Seasonal Unavailability.

Description of Problem: A crustacean was unavailable and not collected in the second half of 2016. Staff personnel were not able to locate and collect crustacea during the period. Contributing to the problem was poor water quality from storm activity causing murky water.

Corrective Action: The crustacea sample was collected in the first week of Jan 2017 for the first semi-annual sample of 2017. Completed a communication to more closely coordinate resources between BRC and FPL utility personnel to ensure timely collection of crustacea samples.

201-6 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 1B ANALYSIS WITH LLDs ABOVE THE REQUIRED DETECTION CAPABILITIES (LLDs) Listed in ODCM TABLE 4.12-1 1/1/2016-12/31/2016 The values specified in ODCM Table 4.12-1, Detection Capabilities, were achieved for all samples. REMP Program sampling deviations and missing data are listed in Table 1A.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 2 LAND USE CENSUS (Page 1 of 2)

The St. Lucie Annual Land Use Census Survey was performed during the months of June and July 2016 - No additions or changes were identified as compared to the 2015 St. Lucie Annual Land Use Census Survey. No locations were identified of potential milk-producing animals (cows or goats).

Distance to Nearest (a, b)

Residence Garden (d) Milk Animal (c)

Sector N O (e) 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 0 SE 1.5/142 0 0 1.6/145 SSE 1.8/147 (g) L (f) L 2.0/149 s 3.3/190 L L SSW 2.2/212 4.4/207 L 4.7/199 5.1/195 SW 1.9/234 L L WSW 1.9/240 2.0/250 L w 1.9/260 L L WNW 2.3/281 4.0/282 L 4.2/284 NW 3.4/304 L L NNW 2.7/344 L L

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 2 LAND USE CENSUS (Page 2of2)

NOTES

a. All categories surveyed out to a 5-mile radius from the St. Lucie Plant.

b. The following format is used to denote the location:

distance (miles) I bearing (degrees)

For example, a residence located in the southeast sector at a distance of 1.5 miles bearing 142 degrees is recorded as 1.5/142.

c. Potential milk animal locations.

d. Only gardens with an estimated total area of 500 square feet, or more, and producing green leafy vegetables are considered.

e. "O" denotes that the sector area is predominantly an ocean area.

f. "L" denotes that the sector area is predominantly a land area unoccupied by the category type.

g. Non-residential occupied buildings in these sectors include the following:

Sector Distance Description SSE 1.8/147 Fire Station

ATTACHMENT A KEY TO SAMPLE LOCATIONS

SITE AREA MAP & ENVIRONMENTAL SAMPLE LOCATIONS INSET CETAIL

-- -~PL**-;:.;r-------

PROPERTY B.JND *-*-

LINE CREEK

ENVIRONMENTAL SAMPLE LOCATIONS (10 MILES)

HOS W-5 SW-10 )1 ;J "'

l

- fr *~*~

H59 B---..:v-- I SSW-10 H12 (PIChem/C-200/F1g.1-2/Rev 2/png)

ATTACHMENT A PAGE 1OF3 PATHWAY: DIRECT RADIATION SAMPLES COLLECTED: TLD SAMPLE COLLECTION FREQUENCY: QUARTERLY Location Direction Approximate Description Name Sector Distance (miles)

N-1 N 1 A 1A, North of Blind Creek NNW-5 NNW 4.8 Frederick Douglas Beach Entrance NNW-10 NNW 8.7 Coast Guard Station NW-5 NW 5.4 Indian River Dr. at Rio Vista Dr.

NW-10 NW 9.6 FPL Facility, S.R. 68 and 33RD St.

WNW-2 WNW 2.3 Cemetery South of 7107 Indian River Dr.

WNW-5 WNW 5.1 U.S. 1 at S.R. 712 WNW-10 WNW 10 S.R. 70, West of Interstate 95 W-2 w 2 Power Line - 77609 Indian River Drive W-5 w 5.4 Oleander and Sager Street W-10 w 10.3 Interstate 95 and S.R. 709 WSW-2 WSW 1.8 8503 Indian River Dr.

WSW-5 WSW 5.6 Prima Vista Blvd. at Yacht Club WSW-10 WSW 10 Del Rio and Davis Street SW-2 SW 2 9205 Indian River Drive SW-5 SW 4.5 FPL Walton Service Center SW-10 SW 10.2 Port St. Lucie Blvd. and Cairo Rd.

SSW-2 SSW 2.6 10307 Indian River Drive SSW-5 SSW *6 U.S. 1 and Port St. Lucie Blvd.

SSW-10 SSW 8 Pine Valley and Westmoreland Rd.

S-5 s 5.2 13189 Indian River Drive S-10 s 10.8 U.S. 1 and Palm City Ave S/SSE-10 SSE 9.9 Indian River Dr. and Quail Run Lane SSE-5 SSE 5.1 North of Entrance to Miramar SSE-10 SSE 10.2 Elliot Museum SE-1 SE 1 South of Cooling Canal Control:

H32 .NNW 18.1 U. of Florida IFAS Entomology Lab Vero Beach

ATTACHMENT A PAGE 2 OF 3 PATHWAY: AIRBORNE SAMPLES COLLECTED: RADIOIODINE AND PARTICULATES SAMPLE COLLECTION FREQUENCY: WEEKLY Location Direction Approximate Description Name Sector Distance (miles)

HOB WNW 6 FPL Substation, Weatherbee Rd.

H14 SE 1 On-Site, near south property line H30 w 2 Power Line, 7609 Indian River Drive H34 N 0.5 Onsite at Meteorological Tower Control:

H12 s 12 FPL Substation, SR-76 Stuart PATHWAY: WATERBORNE SAMPLES COLLECTED: SURFACE WATER (OCEAN)

SAMPLE COLLECTION FREQUENCY: H-15 WEEKLY, H-59 MONTHLY Location Direction Approximate Description Name Sector Distance (miles)

H15 ENE/E/SSE <1 Atlantic Ocean, public beaches east side A1A Control:

H59 S/SSE 10-20 Near south end of Hutchinson Island

ATTACHMENT A PAGE 3 OF 3 SAMPLES COLLECTED: SHORELINE SEDIMENT SAMPLE COLLECTION FREQUENCY: SEMl-ANNUALLY Location Direction Approximate Description Name Sector Distance (miles)

H15 ENE/E/ESE <1 Atlantic Ocean, public beaches east side A1A Control:

H59 S/SSE 10-20 Near south end of Hutchinson Island PATHWAY: INGESTION-FOOD PRODUCTS SAMPLES COLLECTED: CRUSTACEA AND FISH SAMPLE COLLECTION FREQUENCY: SEMl-ANNUALLY Location Direction Approximate Description Name Sector Distance (miles)

H15 ENE/E/ESE <1 Ocean Side, Vicinity of St. Lucie Plant Control:

H59 S/SSE 10-20 Near south end of Hutchinson Island SAMPLES COLLECTED: BROAD LEAF VEGETATION - FOOD PRODUCTS SAMPLE COLLECTION FREQUENCY: MONTHLY Location Direction Approximate Description Name Sector Distance *

(miles)

H51 N/NNW 1 Off-Site Near North Property Line H52 S/SSE 1 Off-Site Near South Property Line Control:

H59 S/SSE 10-20 Near south end of Hutchinson Island

ATTACHMENT B RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE SITE 2016 First Quarter 2016 Second Quarter 2016 Third Quarter 2016 Fourth Quarter 2016

RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE PLANT FIRST QUARTER 2016 BUREAU OF RADIATION CONTROL

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATtNG REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling First Quarter, 2016 Number of Number of Sample Type Collection Frequency Sample Locations Samples

1. Direct Radiation Quarterly 27 27

2. Airborne 2.a. Air Iodines Weekly 5 65 2.b. Air Particulates Weekly 5 65

3. Waterborne 3 .a. Surface Water Weekly 1 13 Monthly 1 3 3.b. Shoreline Sediment Semiannually 2 2

4. Ingestion 4.a. Fish and Invertebrates 4.a. l. Crustacea Semiannually 2 1 4.a.2. Fish Semiannually 2 1 4.b. BroadleafVegetation Monthly 3 9 Total: 186 NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

The marine fauna listed in this report were collected in part, under Florida FWC SAL030.

1. DIRECT RADIATION -TLD's - (µRJhour)

Sample Deployment 09-Dec-15 Sample Deployment 09-Dec-I5 Site Collection 15-Mar-16 Site Collection 15-Mar-16 N-1 3.57 +/- 0.35 SW-2 3.52 +/- 0.20 NNW-5 3.49 +/- O.I6 SW-5 4.89 +/- O.I7 NNW-IO 4.16 +/- 0.12 SW-IO 3.64 +/- 0.18 NW-5 3.60 +/- 0.12 SSW-2 3.4I +/- 0.09 NW-IO 4.71+/-0.50 SSW-5 4.07 +/- 0.10 WNW-2 3.50 +/- 0.26 SSW-IO 4.13 +/- 0.15 WNW-5 3.45 +/- 0.28 S-5 4.32 +/- O.I8 WNW-IO 3.72 +/- 0.32 S-10 3.69 +/- O.I8 W-2 3.55 +/- 0.2I S/SSE-IO 3.43 +/- 0.34 W-5 3.89 +/- 0.37 SSE-5 3.40 +/- 0.33 W-IO 2.82 +/- 0.11 SSE-IO 3.59 +/- 0.20 WSW-2 3.70 +/- 0.09 SE-I 3.4I +/- O.I5 WSW-5 3.48 +/- 0.29 H-32 3.8I +/- 0.23 WSW-10 3.32 +/- 0.05

2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (pCi/ m 3 )

Collection Date HOS H12 H14 H30 H34 05-Jan-16 <0.03 <0.03 <0.03 <0.03 <0.03 12-Jan-16 <0.04 <0.04 <0.04 <0.04 <0.04 19-Jan-16 <0.04 <0.04 <0.04 <0.04 <0.04 26-Jan-16 <0.03 <0.03 <0.03 <0.03 <0.03 03-Feb-16 <0.03 <0.03 <0.03 <0.03 <0.03 10-Feb-16 <0.03 <0.03 <0.03 <0.03 <0.03 16-Feb-16 <0.03 <0.03 <0.03 <0.03 <0.03 23-Feb-16 <0.03 <0.03 <0.03 <0.03 <0.03 01-Mar-16 <0.03 <0.03 <0.03 <0.03 <0.03 08-Mar-16 <0.03 <0.03 <0.03 <0.03 <0.03 15-Mar-16 <0.03 <0.03 <0.03 <0.03 <0.03 22-Mar-16 <0.04 <0.04 <0.04 <0.03 <0.04 28-Mar-16 <0.03 <0.03 <0.03 <0.03 <0.02(A)

(A) Apparent loss of power. Estimated run time 70.4 out of 145.0 hours0 days 0 hours 0 weeks 0 months .

2.b.l. AIR PARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date HOS H12 H14 H30 H34 05-Jan-16 o.oos +/- 0.002 0.012 +/- 0.002 o.oos +/- 0.002 0.009 +/- 0.002 0.013 +/- 0.002 12-Jan-16 0.006 +/- 0.002 0.010 +/- 0.002 0.012 +/- 0.002 0.009 +/- 0.002 o.oos +/- 0.002 19-Jan-16 0.022 +/- 0.002 0.019 +/- 0.002 0.023 +/- 0.002 0.017 +/- 0.002 0.022 +/- 0.002 26-Jan-16 0.012 +/- 0.002 0.014 +/- 0.002 0.016 +/- 0.002 0.012 +/- 0.002 0.016 +/- 0.002 03-Feb-16 0.012 +/- 0.002 0.015 +/- 0.002 0.016 +/- 0.002 0.009 +/- 0.002 0.011+/-0.002 10-Feb-16 0.017 +/- 0.002 0.011+/-0.002 0.020 +/- 0.002 0.016 +/- 0.002 0.015 +/- 0.002 16-Feb-16 0.020 +/- 0.003 0.020 +/- 0.003 0.017 +/- 0.002 0.015 +/- 0.002 0.010 +/- 0.002 23-Feb-16 0.013 +/- 0.002 0.014 +/- 0.002 O.OlS +/- 0.002 0.014 +/- 0.002 0.012 +/- 0.002 01-Mar-16 0.015 +/- 0.002 0.014 +/- 0.002 0.015 +/- 0.002 0.015 +/- 0.002 0.016 +/- 0.002 OS-Mar-16 0.021 +/- 0.003 0.016 +/- 0.002 0.016 +/- 0.002 0.015 +/- 0.002 0.015 +/- 0.002 15-Mar-16 0.011 +/- 0.002 0.004 +/- 0.002 o.oos +/- 0.002 0.009 +/- 0.002 0.009 +/- 0.002 22-Mar-16 0.017 +/- 0.002 0.015 +/- 0.002 0.010 +/- 0.002 0.011 +/- 0.002 0.013 +/- 0.002 2S-Mar-16 0.011+/-0.002 0.013 +/- 0.002 O.OOS +/- 0.002 0.010 +/- 0.002 0.012 +/- 0.004(A)

Average: 0.014 +/- 0.001 0.014 +/- 0.001 0.014 +/- 0.001 0.012 +/- 0.001 0.013 +/- 0.001 (A) Apparent loss of power. Estimated run time 70.4 out of 145.0 hours0 days 0 hours 0 weeks 0 months .

2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 HOS 0.1614 +/- 0.0046 <0.0073 <0.0004 <0.0004 0.0145 +/- 0.0049 H12 0.1544 +/- 0.0101 <0.0125 <0.0014 <0.0010 O.OlSl +/- 0.0032 H14 0.17SS +/- 0.0124 <0.0272 <0.0012 <0.0015 <0.0325 H30 0.1665 +/- 0.0107 <0.0174 <0.0015 <0.0010 0.0159 +/- 0.0029 H34 0.1606 +/- 0.0106 <0.0169 <0.0013 <0.0012 0.0126 +/- 0.0031

3.a. SURFACE WATER- (pCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

H15 05-Jan-16 <151 397 +/- 19 <2 <2 <4 <2 <4 <3 <2 <2 <2 <4 12-Jan-16 <145 416 +/- 24 <3 <3 <5 <3 <5 <4 <3 <2 <2 <10 19-Jan-16 <155 345 +/- 25 <2 <3 <7 <3 <8 <6 <4 <3 <4 <7 26-Jan-16 <152 355 +/- 25 <3 <3 <6 <4 <8 <5 <4 <3 <3 <9 03-Feb-16 <149 321+/-25 <3 <3 <7 <4 <7 <5 <4 <3 <4 <10 10-Feb-16 <149 369 +/- 26 <3 <3 <7 <4 <6 <5 <4 <3 <3 <7 16-Feb-16 <145 333 +/- 25 <3 <3 <6 <3 <8 <5 <3 <3 <3 <10 23-Feb-16 109 +/- 29 444+/- 29 <4 <3 <7 <4 <8 <5 <4 <3 <3 <7 01-Mar-16 <154 351+/-25 <3 <3 <7 <3 <7 <6 <3 <3 <3 <12 08-Mar-16 <164 373 +/- 26 <3 <3 <6 <4 <8 <5 <4 <3 <3 <8 15-Mar-16 <140 420 +/- 28 <3 <3 <8 <4 <8 <5 <4 <3 <4 <6 22-Mar-16 <140 370 +/- 27 <3 <3 <7 <3 <8 <6 <4 <3 <3 <11 28-Mar-16 <140 379 +/- 27 <3 <2 <7 <3 <8 <5 <4 <3 <3 <11 H59 05-Jan-16 <151 391+/-22 <3 <2 <5 <3 <5 <4 <3 <2 <3 <7 16-Feb-16 <145 345 +/- 26 <3 <2 <7 <2 <7 <6 <4 <3 <3 <6 16-Mar-16 <151 365 +/- 26 <3 <3 <7 <4 <8 <5 <4 <3 <3 <6 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT- (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40. Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 U-235 U-238 H15 19-Feb-16 30 +/- 10 340 +/- 32 <6 <6 <6 <6 284 +/- 51 402 +/- 48 58 +/- 6 <8 218+/-17 H59 16-Feb-16 <83 131+/-37 <10 <10 <9 <9 <740 366 +/- 76 <51 <15 207 +/- 40 4.a.l. CRUSTACEA - Mixed Crustacea - (pCi/kg, wet weight)

Sample Collection Site Date K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 H15 This sample not yet collected.

H59 16-Mar-16 1871+/-189 <19 <24 <40 <27 <62 <23 <29 <512 <121 4.a.2. FISH - Catfish - (pCi/kg, wet weight)

Sample Collection Site Date K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 H15 This sample not yet collected.

H59 16-Mar-16 2030 +/- 204 <24 <27 <53 <27 <54 <19 <30 <474 <103

4.b. BROADLEAF VEGETATION - Brazilian Pepper - (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 I-131 Cs-134 Cs-137 Pb-210 Pb-212 Ra-226 Ra-228 H51 05-Jan-16 1411+/-57 4140 +/- 158 <9 <8 <8 251+/-67 <17 <196 <32 16-Feb-16 2230 +/- 96 5231+/-233 <16 <14 <16 <1121 20+/- 9 <317 <60 16-Mar-16 1008+/-71 3819 +/- 203 <17 <14 <19 <1119 <31 <344 <65 H52 05-Jan-16 1031+/-63 4235 +/- 208 <12 <12 <14 <959 <28 <258 <63 16-Feb-16 1487 +/- 72 3870 +/- 187 <12 <11 <14 <1106 <25 <287 <64 16-Mar-16 800 +/- 53 4583+/-217 <16 <14 <17 <1087 29+/-10 <304 <64 H59 05-Jan-16 601+/-47 3300 +/- 160 <10 <9 <13 <836 <23 <280 <52 16-Feb-16 675 +/- 54 4324 +/- 196 <14 <11 <15 <867 <25 <243 <50 16-Mar-16 393 +/- 46 3579 +/- 192 <17 <12 <18 <1087 <32 <295 <68

ST. LUCIE SITE Supplemental Sampling First Quarter, 2016 Number of Number of Sample Type Collection Freguency Sample Locations Sam12les

1. Direct Radiation Quarterly 9 9

2. Airborne 2.a. Air Iodines Weekly 3 39 2.b. Air Particulates Weekly 3 39

3. Waterborne 3.a. Surface Water Monthly 2 6 3.b. Shoreline Sediment Semiannually 4 3 3 .c. Beach Sand Semiannually 3 3 3 .d. Ground Water Quarterly 10 10

4. Ingestion 4.a. Garden Crops Annually 1 0 4.b. Citrus Annually 1 1 4.c. Milk Quarterly 1 0 Total: 110 NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

1. DIRECT RADIATION -TLD's - (µR/hour)

Sample Deployment 09-Dec-15 Site Collection 15-Mar-16 HOS 4.25 +/- 0.15 H09 3.89 +/- 0.27 H12 10.31+/-0.41 H14 4.14 +/- 0.20 H33 3.82 +/- 0.23 H34 3.81 +/- 0.17 H60 3.78 +/- 0.22 H61 4.83 +/- 0.14 H62 4.05 +/- 0.39 2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (pCi/m3 )

Collection Date H09 H32 H33 05-Jan-16 <0.03 <0.03 <0.03 12-Jan-16 <0.04 <0.04 <0.04 19-Jan-16 <0.04 <0.04 <0.03 26-Jan-16 <0.03 <0.03 <0.03 03-Feb-16 <0.03 <0.03 <0.03 10-Feb-16 <0.03 <0.03 <0.03 16-Feb-16 <0.03 <0.03 <0.03 23-Feb-16 <0.03 <0.03 <0.03 01-Mar-16 <0.03 <0.03 <0.03 08-Mar-16 <0.03 <0.03 <0.03 15-Mar-16 <0.03 <0.03 <0.03 22-Mar-16 <0.04 <0.04 <0.04 28-Mar-16 <0.03 <0.03 <0.03

2.b.l. AIR PARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H09 H32 H33 05-Jan-16 0.011+/-0.002 0.010 +/- 0.002 0.007 +/- 0.002 12-Jan-16 0.008 +/- 0.002 0.009 +/- 0.002 0.008 +/- 0.002 19-Jan-16 0.021 +/- 0.002 0.019 +/- 0.002 0.017 +/- 0.002 26-Jan-16 0.014 +/- 0.002 0.015 +/- 0.002 0.009 +/- 0.002 03-Feb-16 0.011 +/- 0.002 0.017 +/- 0.002 0.012 +/- 0.002 10-Feb-16 0.014 +/- 0.002 0.015 +/- 0.002 0.015 +/- 0.002 16-Feb-16 0.013 +/- 0.002 0.018 +/- 0.002 0.012 +/- 0.002 23-Feb-16 0.015 +/- 0.002 0.015 +/- 0.002 0.014 +/- 0.002 01-Mar-16 0.019 +/- 0.002 0.017 +/- 0.002 0.012 +/- 0.002 08-Mar-16 0.015 +/- 0.002 0.017 +/- 0.002 0.013 +/- 0.002 15-Mar-16 0.010 +/- 0.002 0.018 +/- 0.002 0.016 +/- 0.002 22-Mar-16 0.014 +/- 0.002 0.012 +/- 0.002 0.013 +/- 0.002 28-Mar-16 0.007 +/- 0.002 0.011+/-0.002 0.014 +/- 0.003 Average: 0.013 +/- 0.001 0.015 +/- 0.001 0.012 +/- 0.001 2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

Sample Site Cs-134 Cs-137 Pb-210 H09 0.1541+/-0.0116 <0.0265 <0.0015 <0.0012 <0.0486 H32 0.1726+/-0.0108 <0.0156 <0.0015 <0.0011 0.0226 +/- 0.0035 H33 0.1635 +/- 0.0109 <0.0181 <0.0013 <0.0011 0.0158 +/- 0.0034

3 .a. SURFACE WATER - CpCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

H13 05-Jan-16 <151 333 +/- 20 <2 <2 <5 <3 <6 <4 <3 <2 <3 <5 16-Feb-16 <145 206 +/- 19 <3 <3 <6 <3 <7 <5 <3 <3 <3 <6 16-Mar-16 <140 255 +/- 22 <3 <3 <6 <3 <8 <5 <4 <3 <3 <10 H36 05-Jan-16 <151 328 +/- 25 <3 <3 <7 <3 <8 <5 <4 <3 <4 <11 16-Feb-16 <145 375 +/- 27 <3 <3 <6 <3 <7 <6 <4 <3 <4 <8 16-Mar-16 <140 339 +/- 26 <3 <3 <7 <3 <7 <5 <4 <3 <3 <6 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 U-235 U-238 H13 This sample not yet collected due to ongoing construction in the area.

H16 19-Feb-16 <62 212 +/- 26 <6 <6 <7 <7 289 +/- 56 570 +/- 60 71+/-6 <10 276 +/- 19 H19 19-Feb-16 <56 238 +/- 27 <6 <6 <6 <7 367 +/- 55 381 +/- 51 70+/- 6 <9 207 +/- 17 H36 19-Feb-16 1980+/-74 5311+/-192 <12 47+/- 3 <11 27+/- 3 4483 +/- 308 1430 +/- 121 422 +/- 22 <21 4333 +/- 119 3 .c. BEACH SAND - (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 U-235 U-238 H15 19-Feb-16 <72 147 +/- 41 <10 <10 <9 <11 <971 429 +/- 84 <51 <16 184 +/- 46 H16 16-Feb-16 52+/-24 182 +/- 38 <10 <10 <9 <10 <755 467 +/- 81 89 +/- 12 <15 247 +/- 35 H19 19-Feb-16 <117 123 +/- 42 <11 <10 <10 <12 <999 802 +/- 116 214 +/- 18 <22 423 +/- 40

3.d. GROUND WATER- (pCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

H70 14-Jan-16 <145 <51 <4 <4 <8 <4 <7 <7 <5 <3 <4 <6 H71 14-Jan-16 685 +/- 63 385 +/- 27 <3 <3 <7 <3 <7 <6 <6 <3 <3 <5 H72 14-Jan-16 <155 339 +/- 25 <4 <3 <7 <4 <8 <5 <5 <3 <3 <5 H73 14-Jan-16 <156 <60 <3 <3 <6 <3 <7 <5 <5 <3 <3 <5 H74 14-Jan-16 <156 298 +/- 24 <4 <3 <7 <4 <7 <6 <5 <3 <3 <5 H75 14-Jan-16 <156 296 +/- 23 <3 <3 <6 <4 <7 <5 <6 <3 <3 <6 H76 14-Jan-16 <145 <44 <3 <3 <6 <3 <8 <6 <5 <3 <3 <5 H77 14-Jan-16 <156 <37 <3 <3 <6 <3 <7 <6 <5 <3 <3 <4 H78 14-Jan-16 <156 44+/- 6 <2 <2 <4 <2 <4 <3 <3 <2 <2 <3 H79 14-Jan-16 <155 <53 <3 <3 <6 <3 <7 <6 <5 <3 <3 <5 (A)'." These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

~

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 4.a. GARDEN CROP - (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 1-131 Cs-134 Cs-137 H41 This sample not yet collected.

4.b. CITRUS - Oranges - (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 1-131 Cs-134 Cs-137 H23 19-Jan-16 <7671 1709 +/- 96 <9 <9 <10 4.c. MILK - (pCi/L)

Sample Collection Ba-140 Site Date K-40 1-131 Cs-134 Cs-137 La-140 (A)

HlOl There was no sample available during the quarter.

(A) - This tabulated LLD value is for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity

RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE PLANT SECOND QUARTER 2016 BUREAU OF RADIATION CONTROL

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling Second Quarter, 2016 Number of Sample Type Collection Frequency Locations Sampled Samples

1. Direct Radiation Quarterly 27 27

2. Airborne 2.a. Air Iodines Weekly 5 65 2.b. Air Particulates Weekly 5 65

3. Waterborne 3.a. Surface Water Weekly 1 13 Monthly 1 3 3.b. Shoreline Sediment Semiannually 2 0

4. Ingestion 4.a. Fish and Invertebrates 4.a.l. Crustacea Semiannually 2 1 4.a.2. Fish Semiannually 2 1 4.b. BroadleafVegetation Monthly 3 9 Total: 184 NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

The marine fauna listed in this report were collected in part, under Florida FWC SAL030.

1. DIRECT RADIATION - TLD's - (µR/hour)

Sample Deployment 15-Mar-16 Sample Deployment 15-Mar-16 Site Collection 07-Jun-16 Site Collection 07-Jun-16 N-1 3.90 +/- 0.19 SW-2 3.79 +/- 0.31 NNW-5 3.85 +/- 0.15 SW-5 4.52 +/- 0.52 NNW-10 4.65 +/- 0.32 SW-10 3.97 +/- 0.21 NW-5 3.56 +/- 0.38 SSW-2 3.81+/-0.40 NW-10 5.09 +/- 0.45 SSW-5 4.34 +/- 0.43 WNW-2 3.72 +/- 0.14 SSW-10 5.11+/-0.24 WNW-5 3.75 +/- 0.35 S-5 4.60 +/- 0.37 WNW-10 3.62 +/- 0.20 S-10 3.76 +/- 0.25 W-2 3.46 +/- 0.13 S/SSE-10 3.80 +/- 0.54 W-5 4.29 +/- 0.13 SSE-5 3.86 +/- 0.13 W-10 3.63 +/- 0.11 SSE-10 3.90 +/- 0.10 WSW-2 3.85 +/- 0.28 SE-1 3.72 +/- 0.32 WSW-5 3.85 +/- 0.10 H-32 3.48 +/- 0.13 WSW-10 3.43 +/- 0.19

2.a. IODINE-131 IN WEEKLY AIRCARTRIDGES-(pCi/m3 )

Collection Date HOS H12 H14 H30 H34 05-Apr-16 <0.03 <0.03 <0.03 <0.03 <0.03 12-Apr-16 <0.03 <0.03 <0.03 <0.03 <0.03 19-Apr-16 <0.03 <0.03 <0.03 <0.03 <0.03 26-Apr-16 <0.03 <0.03 <0.03 <0.03 <0.03 04-May-16 <0.02 <0.02 <0.02 <0.02 <0.02 10-May-16 <0.03 <0.03 <0.03 <0.03 <0.03 17-May-16 <0.02 <0.02 <0.02 <0.02 <0.02 24-May-16 <0.02 <0.02 <0.02 <0.02 <0.02 31-May-16 <0.02 <0.02 <0.02 <0.02 <0.02 07-Jun-16 <0.02 <0.02 <0.02 <0.02 <0.02 14-Jun-16 <0.02 <0.02 <0.02 <0.02 <0.02 21-Jun-16 <0.02 <0.02 <0.02 <0.02 <0.02 28-Jun-16 <0.02 <0.02 <0.02 <0.02 <0.02

2.b.l. AIR PARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H08 H12 H14 H30 H34 05-Apr-16 0.013 +/- 0.002 0.012 +/- 0.002 0.009 +/- 0.002 0.012 +/- 0.002 0.006 +/- 0.002 12-Apr-16 0.017 +/- 0.002 0.016 +/- 0.002 0.020 +/- 0.002 0.015 +/- 0.002 0.011 +/- 0.002 19-Apr-16 0.015 +/- 0.002 0.017 +/- 0.002 0.013 +/- 0.002 0.008 +/- 0.002 0.013 +/- 0.002 26-Apr-16 0.019 +/- 0.002 0.015 +/- 0.002 0.024 +/- 0.003 0.017 +/- 0.002 0.015 +/- 0.002 04-May-16 0.021+/-0.002 0.016 +/- 0.002 0.014 +/- 0.002 0.014 +/- 0.002 0.008 +/- 0.002 10-May-16 0.018 +/- 0.003 0.022 +/- 0.003 0.022 +/- 0.003 0.014 +/- 0.003 0.020 +/- 0.003 17-May-16 0.020 +/- 0.002 0.016 +/- 0.002 0.018 +/- 0.002 0.018 +/- 0.002 0.017 +/- 0.002 24-May-16 0.012 +/- 0.002 0.013 +/- 0.002 0.013 +/- 0.002 0.010 +/- 0.002 0.008 +/- 0.002 31-May-16 0.008 +/- 0.002 0.014 +/- 0.002 0.007 +/- 0.002 0.013 +/- 0.002 0.008 +/- 0.002 07-Jun-16 0.009 +/- 0.002 0.013 +/- 0.002 0.012 +/- 0.002 0.011 +/- 0.002 0.012 +/- 0.002 14-Jun-16 0.010 +/- 0.002 0.012 +/- 0.002 0.012 +/- 0.002 0.012 +/- 0.002 0.010 +/- 0.002 21-Jun-16 0.016 +/- 0.002 0.014 +/- 0.002 0.017 +/- 0.002 0.012 +/- 0.002 0.014 +/- 0.002 28-Jun-16 <0.008 0.006 +/- 0.002 <0.008 <0.008 <0.008 Average: <0.014 0.014 +/- 0.001 <0.015 <0.013 <0.012 2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 H08 <0.0311 <0.0091 <0.0013 <0.0007 0.0138 +/- 0.0024 Hl2 0.1558 +/- 0.0086 <0.0158 <0.0010 <0.0008 <0.0268 H14 <0.0368 <0.0101 <0.0015 <0.0012 0.0150 +/- 0.0029 H30 0.1188 +/- 0.0106 <0.0260 <0.0016 <0.0012 <0.0372 H34 0.1546 +/- 0.0122 <0.0206 <0.0017 <0.0011 0.0386 +/- 0.0139

3.a. SURFACE WATER- (pCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

HIS 05-Apr-16 <157 352 +/- 25 <3 <3 <7 <4 <7 <6 <4 <3 <3 <5 12-Apr-16 <153 378 +/- 26 <3 <3 <6 <3 <8 <6 <3 <3 <3 <10 19-Apr-16 <152 380 +/- 23 <3 <3 <5 <3 <6 <5 <3 <3 <3 <8 26-Apr-16 <161 371+/-26 <3 <3 <6 <3 <7 <6 <3 <3 <3 <11 04-May-16 <163 372 +/- 23 <2 <2 <5 <3 <6 <4 <3 <2 <3 <9 10-May-16 <156 351+/-27 <3 <3 <8 <3 <7 <6 <4 <3 <3 <6 17-May-16 <156 390 +/- 27 <3 <3 <6 <4 <7 <5 <4 <3 <4 <11 24-May-16 <172 368 +/- 26 <3 <3 <6 <4 <7 <5 <3 <3 <3 <11' 31-May-16 <172 334 +/- 20 <2 <2 <5 <3 <5 <4 <3 <2 <2 <7 08-Jun-16 <171 413 +/- 28 <3 <3 <7 <4 <8 <5 <4 <3 <3 <11 14-Jun-16 <150 365 +/- 26 <3 <3 <6 <3 <8 <5 <3 <3 <3 <10 21-Jun-16 <150 333 +/- 25 <3 <3 <6 <3 <8 <5 <3 <3 <3 <11 28-Jun-16 <159 369 +/- 25 <3 <3 <6 <4 <7 <5 <3 <3 <3 <10 H59 19-Apr-16 <161 355 +/- 26 <3 <4 <8 <3 <7 <6 <4 <3 <3 <5 10-May-16 <156 385 +/- 21 <3 <2 <5 <3 <5 <4 <3 <2 <3 <4 08-Jun-16 <171 431+/-28 <3 <3 <6 <4 <6 <6 <4 <3 <3 <6 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 These samples were previously collected.

4.a.l. CRUSTACEA - Stone Crab - (pCi/kg, wet weight)

Sample Collection Site Date K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 H15 17-May-16 1376 +/- 124 <21 <18 <37 <16 <42 <20 <22 <369 <66 H59 This sample was previously collected.

4.a.2. FISH - Sheepshead - (pCi/kg, wet weight)

Sample Collection Site Date K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 H15 24-May-16 1370+/-173 <22 <22 <47 <26 <57 <23 <28 <428 <115 H59 This sample was previously collected.

4.b. BROADLEAF VEGETATION - Brazilian Pepper- (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 I-131 Cs-134 Cs-137 Pb-210 Pb-212 Ra-226 Ra-228 H51 19-Apr-16 2263 +/- 90 2876 +/- 151 <12 <10 <13 <981 <21 <268 <50 10-May-16 1838+/-91 3783 +/- 199 <20 <13 <16 1151+/-406 <38 <328 <63 08-Jun-16 1435 +/- 59 3348 +/- 141 <10 <9 <9 291 +/- 64 <17 <199 <31 H52 19-Apr-16 1431+/-76 4616 +/- 222 <14 <14 <17 <1090 <25 <321 <65 10-May-16 994 +/- 65 2874 +/- 164 <16 <12 <15 <1016 <26 <307 <71 08-Jun-16 916 +/- 58 3479 +/- 176 <16 <11 <13 <966 <27 <286 <54 H59 19-Apr-16 653 +/- 53 3521+/-174 <13 <11 <15 <950 <24 <273 <59 10-May-16 534 +/- 54 3473 +/- 184 <17 <12 <13 <1177 <28 <286 <60 08-Jun-16 605 +/- 52 3834 +/- 196 <13 <12 <17 <1183 <20 <279 <64

ST. LUCJE SITE Supplemental Sampling Second Quarter, 2016 Number of Sample Type Collection Frequency Locations Sampled Samples

1. Direct Radiation Quarterly 9 9

2. Airborne 2.a. Air Iodines Weekly 3 39 2.b. Air Particulates Weekly 3 39

3. Waterborne 3.a. Surface Water Monthly 2 6 3.b. Shoreline Sediment Semiannually 4 1 3 .c. Beach Sand Semiannually 3 0 3 .d. Ground Water Quarterly 10 10

4. Ingestion 4.a. Garden Crop Annually 1 1 4.b. Citrus Annually 1 0 4.c. Milk Quarterly 1 0 Total: 105 NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

1. DIRECT RADIATION -TLD's - (µR/hour)

Sample Deployment 15-Mar-16 Site Collection 07-Jun-16 HOS 3.71+/-0.04 H09 3.55 +/- 0.37 H12 9.40 +/- 1.08 H14 3.65 +/- 0.16 H33 3.60 +/- 0.27 H34 3.32+/- 0.06 H60 3.39 +/- 0.30 H61 4.58 +/- 0.17 H62 3.76 +/- 0.24 2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (pCi/m3 )

Collection Date H09 H32 H33 05-Apr-16 <0.03 <0.03 <0.03 12-Apr-16 <0.03 <0.03 <0.03 19-Apr-16 <0.03 <0.03 <0.03 26-Apr-16 <0.03 <0.03 <0.03 04-May-16 <0.02 <0.02 <0.02 10-May-16 <0.03 <0.03 <0.04 17-May-16 <0.02 <0.02 <0.03 24-May-16 <0.02 <0.02 <0.02 31-May-16 <0.02 <0.02 <0.02 07-Jun-16 <0.02 <0.02 <0.02 14-Jun-16 <0.02 <0.02 <0.02 21-Jun-16 <0.02 <0.02 <0.02 28-Jun-16 <0.02 <0.02 <0.02

2.b. AJRPARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H09 H32 H33 05-Apr-16 0.011 +/- 0.002 0.013 +/- 0.002 0.014 +/- 0.002 12-Apr-16 0.019 +/- 0.002 0.021+/-0.003 0.012 +/- 0.002 19-Apr-16 0.017 +/- 0.002 0.015 +/- 0.002 0.013 +/- 0.002 26-Apr-16 0.019 +/- 0.002 0.020 +/- 0.003 0.019 +/- 0.003 04-May-16 0.016 +/- 0.002 0.018 +/- 0.002 0.014 +/- 0.002 10-May-16 0.018 +/- 0.003 0.019 +/- 0.003 0.020 +/- 0.003 17-May-16 0.019 +/- 0.002 0.017 +/- 0.002 0.019 +/- 0.003 24-May-16 0.009 +/- 0.002 0.012 +/- 0.002 0.011 +/- 0.002 31-May-16 0.015 +/- 0.002 0.010 +/- 0.002 0.011+/-0.002 07-Jun-16 0.009 +/- 0.002 0.012 +/- 0.002 0.008 +/- 0.002 14-Jun-16 0.012 +/- 0.002 . 0.010 +/- 0.002 0.006 +/- 0.002 21-Jun-16 0.014 +/- 0.002 0.015 +/- 0.002 0.008 +/- 0.002 28-Jun-16 0.009 +/- 0.002 0.007 +/- 0.002 0.004 +/- 0.002 Average: 0.014 +/- 0.001 0.015 +/- 0.001 0.012 +/- 0.001 2.b. A1R PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

Sample Site K-40 Cs-134 Cs-13 7 Pb-210 H09 0.1557 +/- 0.0115 <0.0243 <0.0013 <0.0013 <0.0464 H32 0.1307 +/- 0.0127 <0.0342 <0.0016 <0.0014 <0.0376 H33 0.1574 +/- 0.0107 <0.0229 <0.0014 <0.0013 0.0112 +/- 0.0028

3.a. SURFACE WATER- (pCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

H13 18-Apr-16 <161 298 +/- 23 <3 <3 <7 <3 <7 <5 <5 <3 <3 <4 10-May-16 <156 327 +/- 24 <3 <3 <7 <3 <7 <4 <4 <3 <3 <6 08-Jun-16 <171 306 +/- 24 <3 <3 <7 <3 <7 <5 <4 <3 <3 <10 H36 18-Apr-16 <152 374 +/- 27 <4 <4 <7 <4 <8 <6 <5 <3 <4 <6 10-May-16 <156 410 +/- 27 <3 <3 <7 <4 <6 <5 <4 <3 <3 <6 08-Jun-16 <171 360 +/- 21 <3 <2 <5 <3 <6 <4 <3 <2 <3 <7 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 Others H13 18-Apr-16 <72 697 +/- 45 <7 <6 <7 <8 512 +/- 76 589 +/- 56 88 +/- 7 U238: 261+/-20 3.c. BEACH SAND - (pCi/kg, dry weight)

Sample Collection Site Date Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 Others These samples were previously collected.

3 .d. GROUND WATER (pCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 (A) (B)

H70 18-Apr-16 <152 <45 <3 <3 <7 <3 <8 <5 <4 <3 <3 <6 H71 18-Apr-16 575 +/- 60 400 +/- 27 <3 <4 <7 <4 <8 <5 <4 <4 <3 <6 H72 18-Apr-16 <152 310 +/- 24 <3 <4 <7 <4 <8 <6 <5 <3 <4 <7 H73 18-Apr-16 <161 80 +/- 13 <3 <4 <6 <3 <7 <6 <4 <3 <4 <7 H74 18-Apr-16 <161 348 +/- 26 <3 <3 <7 <3 <8 <5 <4 <3 <4 <7 H75 18-Apr-16 <152 302 +/- 24 <3 <3 <7 <3 <7 <5 <4 <3 <3 <6 H76 18-Apr-16 <152 <36 <3 <3 <7 <3 <7 <6 <4 <3 <3 <7 H77 18-Apr-16 <152 <42 <3 <3 <7 <4 <8 <6 <4 <3 <4 <8 H78 18-Apr-16 <152 28+/- 6 <2 <2 <4 <2 <4 <4 <3 <2 <2 <5 H79 18-Apr-16 <152 <37 <3 <3 <7 <3 <7 <6 <4 <3 <3 <6 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth of La-140, whichever method yields the greater sensitivity for a given sample.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 4.a. GARDEN CROP - Collard Greens - (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 1-131 Cs-134 Cs-137 H41 05-Apr-16 457 +/- 28 4746+/-162 <7 <6 20+/-2 4.b. CITRUS - (pCi/kg, wet weight)

Sample Collection Site Date Be-7 K-40 1-131 Cs-134 Cs-137 H23 This sample was previously collected.

4.c. MILK - (pCi/L)

Sample Collection Ba-140 Site Date K-40 1-131 Cs-134 Cs-137 La-140 (A)

Hl 01 There was no sample available during the quarter.

(A) - This tabulated LLD value is for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth of La-140, whichever method yields the greater sensitivity.

RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE PLANT THIRD QUARTER2016 BUREAU OF RADIATION CONTROL

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling Third Quarter, 2016 r,,_,___*-*-'""*---*----"*-----,,-*-**--*--*-,***-*-*-*"-*-----*-

r*:sam~le

. ,-*---= Type. . . .,,... -**--'-****--*,,--". . .,,.,!Collection __. . . . . ____,. ___ ,,. . . . . . . . . .m.--.....*,,*--+;:;;;L:=o=ca=t=io=n=s=S=a=m~==.~--*"'*-*="='~=,. _

Frequency 1

. Direct Radiation ~..... ~-.-.,............,, ..,.

!Quarterly

- - - -*~**"-......-..: _, .. m=~.~~"-"****""""-""

27 25

. Airborne

_2_.a_._A_i_r_lo_d__i_n_es_ _ _ _ _ _. lweekly'----- 5 65

. Waterborne II 3.a. Surface Water iWeekly

--~~-~---*----,;--.--*.--~-~~-~~---1-----**~-~--,,-~*-.....-.J>-**-**------<

13 ly

---+::~~:.: L .......-.,.,,,,_.------+----"-******---..

. 1 ----------e-,--.--------***

3 . **--**<

3.b. Shoreline Sediment 2 2 9

NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

The marine fauna listed in this report were collected in part, under Florida FWC SAL030.

1. DIRECT RADIATION - TLD's - (µR/hour) r-sample T Deployment 07-J~~i6-S1_"te_ __.__C_o_ll_ec_ti_o_n_0_7_-S_e_,_p_-1_6_ !

. Sample Site r Depl~;~~~~ 67~1~~~16 Collection 07-Sep-16 l

Nl- 3 37 +/- 0 35 SW2 - 3 38 +/- 0 39 l"Nmv~t--*-*

3.36 +/- 0.25 j SW-5 __ 3.93 +/- 0.28 I

\----~--'--- - -

I NNW-10 !!

,~'.~-

y_,,,,.__.

4.13 +/- 0.34 SW-10 (B) I I I L NW-5 1

' 3.30 +/- 0.13 SSW-2 3.45 +/- 023

~-*-*-**----*._)

I

' NW-lU 4.38 +/- 0.21 SSW-5 3.99 +/- 0.63 I WNW-2 3.34 +/- 0.12 SSW-10 4.74+/-0.17 3.45 +/- 0.36 S-5 4.36 +/- 0.20 WNW-10 3.41 +/- 0.33 S-10 3.45 +/- 0.34 W-2 3.21+/-0.05 S/SSE-10 3.44 +/- 0.41

--~'-""-"""'"""""""

W-5 3.80 +/- 0.23 SSE-5 3.31+/-0.32

__,,_,,,,,,?,_ _ _ _

W-10 (A) SSE-10 3.58 +/- 0.27 WSW-2 3.53 +/- 0.27 SE-1 3.38 +/- 0.27 WSW-5 3.48 +/- 0.08 H-32 3.78 +/- 0.18 WSW-10 3.06 +/- 0.42 (A) TLD missing upon collection.

(B) TLD missing upon collection.

2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (QCi/ m 3 )

Collection Date HOS H12 H14 H30 H34 05-Jul-16 <0.02 <0.02 <0.02 <0.02 <0.02 13-Jul-16 <0.02 <0.02 <0.02 <0.02 <0.02 19-Jul-16 <0.02 <0.02 <0.02 26-Jul-16 <0.02 <0.02 <0.02

<0.02 <0.02 <0.02

<0.02 <0.02 <0.02 <0.02 <0.02

<0.02 <0.02 <0.02 <0.02

<0.02

<0.02 <0.02 <0.02 <0.02 <0.02

<0.02 <0.02 <0.02 <0.02

<0.02 <0.02 <0.02 <0.02 <0.02

<0.02 <0.03 <0.02 <0.02 <0.02 (A) Hose coupling came apart during sample period, unknown actual volume.

2.b.l. AIR PARTICULATES - GROSS BETA- (QCi/m3 )

Collection Date i HOS ! H12 H14 i H30 H34 i i

05-Jul-16 ; 0.009 +/- 0.002 o.oos +/- 0.002 0.009 +/- 0.002 0.006 +/- 0.002 0.009 +/- 0.002 13-Jul-16 0.014 +/- 0.002 0.016 +/- 0.002 0.013 +/- 0.002 0.012 +/- 0.002 O.OlS +/- 0.002

-Jul-16 0.011 +/- 0.002 0.010 +/- 0.002 0.011 +/- 0.002 0.011 +/- 0.002 0.010 +/- 0.002 26-Jul-16 0.011 +/- 0.002 0.009 +/- 0.002 0.011 +/-

6 0.014 +/- 0.002 0.019 +/- 0.002 0.013 +/- 0.002 l 0.014 +/- 0.002 I 0.013 +/- 0.002 10-Au!!-16 0.007 +/- 0.002 0.011 +/- 0.002 0.016 +/- 0.002 0.011+/-0.002 0.013 +/- -0.002

.005 +/- 0.002 0.007 +/- 0.002 0.005 +/- 0.002 0.011 +/- 0.002 0.012 +/- 0.002

--~~~-

0.013 +/- 0.002 0.014 +/- 0.002 0.015 +/- 0.002 0.012 +/- 0.002 0.010 +/- 0.002 0.006 +/- 0.002 0.011 +/- 0.002 0.009 +/- 0.002 o.oos +/- 0.002 0.009 +/- 0.002 6 ! 0.014 +/- 0.002 0.012 +/- 0.002 0.012 +/- 0.002 0.010 +/- 0.002 0.010 +/- 0.002 0.006 +/- 0 002 i 0.012 +/- 0.002 <0.009 (A) 0.009 +/- 0.002 o.oos +/- 0.002 .

0.005 +/- 0.002 ! 0.006 +/- 0.002 0.007 +/- 0.002 0.010 +/- 0.002 0.009 +/- 0.002 0.006 +/- 0.002 0.005 +/- 0.002 0.009 +/- 0.002 0.006 +/- 0.002 <0.010 0.009 +/- 0.001 0.011 +/- 0.001 <0.011 0.010 +/- 0.001 <0.012 (A) Hose coupling came apart during sample period, unknown actual volume.

2.b.2. AIRPARTICULATES-GAMMAANALYSIS OF QUARTERLY COMPOSITES - (QCilm3 )

Samole Site I Cs-134 HOS 0.1521+/-0.0149 <0.0240 <0.0017 <0.0011 <0.0123 H12 0.1S16 +/- 0.015S <0.0126 <0.0017 <0.0011 0.0111+/-0.0029 H14 0.1919 +/- 0.0190 <0.0260 <0.0016 <0.0012 <0.03S2 H30 0.1086 +/- 0.0136 <0.0194 <0.0015 <0.0011 <0.0126 H34 0.1626 +/- O.Ol 7S <0.0204 <0.0016 <0.0014 <0.03SO

3.a. SURFACE WATER- CpCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 - Co-60 - Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140

. **--**-*~**-*ff '

(A) . *" "~" '*"-"""""" "'"*'"-"-*""'""'

(B)

H15 05-Jul-16 <149 416 +/- 28 <3 <3 <6 <4 <7 <5 <3

<3

<3 <12 i

13-Jul-16 <149 386 +/- 27 <3 <3 ........... ---<7 <3 <6 <6 <5 """'"' ____ <3 <3 <4

"""-"'"""" .. ~~---""" ---~--'"""'" --~----

........ 19-Jul-16 <167 382 ..

+/- 26***** <3 .... <3 <7 .....

<3 <7 <6 <3 <3 <4 <10

.... ;~"""'""'"""'

"" ******** '"~--..N>>*"'* .~

~

- - - ~ ""'"'""" --~,,*-~-,..~

26-Jul-l 6 <167 ' 384 +/- 27 <3 <3 <7 <4 <7 <5 ' <4 . <3 <3 <6

'"""'"'"""-'""" *-**- . . 9?. =~1:1g:!§ <167 369 +/- 26 '""

<3 <3 <6 <3 <8 <6

<4 <3 <3 <4

=->** ....._.,. .............. ~-. .. l9~.A1:1g~J~. <156 400 +/- 42 ... ,..... <6 <7 .....

<18

<6 <14 .......

<13

--~----*--"'""'

<23

!***-**"**"*"-"' -**--*~ ,...............<6 <6 <17 ..,_......

15-Aug-16

<156 392 +/- 27 ******

<3 <4 <8 <3 <8 <7 <2 <3 <3 <7 23-Aug:!.2..... <158 I 394 +/- 42 <6 <7 <l'"'

/6 <14 ,.-1 1

/11 <5 <6 <10

,,-r;.

30-Aug-16

- ...... -................ .................... - .......... .... """"*"~***--******-"***** <158 416 +/- 43 <6 <7 <13 ' <6 .. ..

<15..... - <11 .....

<5 <6 *

<16

~- ...... ~ ...... "" : ~~~~

.-~--~~~------*-

- - -* ~ >> * -.-~-- *******4W*~~ o

~*--*~~-"--*-* "~"~'"*****-' w~--*

08-Sep-16 . <158 328 +/- 26 <3 <3 I <7 <:....) <6 *

<6 <5 <3 <3 <5

*---*-*-*---*--**-*-*--*- _Li~.§~P:L~--- <158 343 +/- 26 <3 <3 <7

<3 <7 <4 <3 I <3

<3 <12

. . ~Q:.§..~P.=!~ ..... <150 382 +/- 27 <3 <3 ~**-**~

<6 *-****-*----****

<3 <7 <6

<4

-****~***--~--*-****~* *m-*u.--

<3

.,.~*m*~ ** """'"""'"~,.

+ <6 '"'

26-Sep-16

.................................................................. <150 331+/-37 <6 <6 <11 <6 <12 <9 <6 <6 <7 <14 H59 13-Jul-16 <149....... _. .. __ 369 +/- 26 <3 <3 I <6 <4 <7 <5 <5 <3 <3 <5

............... 15-Aug}§ ....... <156 444

~_. ........... ,.

+/- 45 <6

<6

- - - - --*--*~***-*-

<15 _.,._

<6

~ ............

<16 . <12*- ........... ...................

<23 <5 <6 <17 .. ...................

_Q~_=§..e.P.::..1...9 ........... :::l 58 342 +/- 25 <3 <3 <6 <3 <8 <5 <5 I <3 <3 <4 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) - These tabulated LLD values are for Ba-140, either based on direct measurement of Ba-140 or based on ingrowth of La-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight)

[~sil~-~~~~-r* . *.--B...e..._-7--***-* .J<.~4-Q* * -.*..**-..****:::5~ r~:: C:-1:41 Cs-1:7r~:_:l~[R-a:[~h-:2 ~LU-:~ [~~~~~

,..................H

........1...5. . . . . . . . _11.s~ll_g::l§.j <_82 -' 1022 _+/- 58... <!.__..* <7 -_.:"]__ ,_ '.'8__L1?_6_+/-58 _520 +/-_61 J_.96.c". 8__ .l?-".~- ~_22 H59 , 1-?=~~g=!() J ~;~~ rl};;;~*-: -*~() r <6 <7 <7 ' 379 +/- 64 450 +/- 54

57 +/- 6 28 +/- 3 1

228 +/- 11 i .. T I Cs-137 ..! Ra-226

-~-*--*---"""***~-~- --~----- .......... -.,............... ,.,...-

l Ra-228

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

I This collected.

.................. **r**********-*********- ... ,......................_ .........,................ -** **-*-* . ". . _ .............................. ....................................

Sample Collection

r?i:i~e. . . ~~49 i Co-60 I~.n:65 Cs: 134 J_C~7 J~,226 Ra-228 I !

Hl5

-- !h~sam21".1121y"1-"~1r, --r ~* <35 :~;~1 <66

j H59 _ _Q~-~. .~~Q:_l~_ . J__ ~?.?. .:J::J~?__ L_:Sl_() ___ . . ..:E__ J_.~~? . , __ <..1...5. . ,. . . . . . ."-************** _........................,. . . .<.__1_7_....,.,....................<.,...1....6__............................................................................................ .!

4.b. BROADLEAF VEGETATION - Brazilian Pepper - (pCi/kg, wet weight)

Sample Collection mm*~~ite -**--- Cs-134 Ra-228

- - - vm v***- v-H51 13-Jul-16 812 +/- 58 5049 +/- 225 <19 <14 <14 <1016 <20 <310 <65 1 87+/-42 4320 +/- 158 <9 <7 <9 238 +/- 62 <15 <171 <32

"""'""""""'~*,.****-***

<21 <12 <18 <1166

--v~**~v*v-*v*._*v~*v=, ,,_.,

<31 <345 <59 H52 13-Jul-16 688 +/- 39 2960 +/- 125 <12 <7 7+/-2 <252 <15 <180 <35 1 6 740 +/- 39 5196 +/- 187 <10 <9 <10 <260 <16 <181 <35 5220 +/- 223 <18 <10 <13 <943 <28 <313 <61 w *

m * * * " ' *

y O v * - v - v w . . . m ..~_,,,,,,,,,,,,

H59 13-Jul-16 1273 +/- 74 4125 +/- 197 <21 <12

.,~-*

<14 <1100 <22 <294 "vm.~*-*---*~

'"""'~"~"'"

<59 1 16 1741+/-83 3784 +/- 185 <15 <10 <13 <1043 <23 <289 <58

<15 <10 <11 <842 <22 <236 0

ST. LUCIE SITE Supplemental Sampling Third Quarter, 2016 9 9

2. Airborne

~--*-******

2.a. Air Iodines . . J. . . . 3 39 .........!

i 2.b. Air Particulates 3 39

13. Waterborne 3.a. Surface Water 2 6 3.b. Shoreline Sediment Semiannually_ _ _~~ 4 4 ,

I --- ---~

~-******

3.c. Beach Sand .... . . .... .. . . . . . ~t?gii~~1:1~11y 3 3

- - - - <********************************************************************************************+*************************************************--**********************<

J _ 3 .d. Ground Water 10 10

~- Ingestion l___,_j~Q~I.<!en Crop~---- uall 1 0

~ ......

4.b. Citrus .......................................1 1 0 4.c. Milk !_._ __ 1 0 otal: 110 NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

1. DIRECT RADIATION -TLD's - (µR/hour)

Sampl Deployment 07-Jun-16 Site Collection 07-Se -16 HOS H34 H60 H61 +/- 0.53 H62 4.01+/-0.26 2.a. IODJNE-131 IN WEEKLY AIR CARTRIDGES - (pCi/m3 )

---i--

Collection Date li H09 H32 i H33

---~T-""""

.I 05-Jul-16 - <0.02. . . . . . . . . . . . . . . .. <0.02 !

- - - - -*-*****1***-*********

<0.02 ********--****~

13-Jul-16 <0.0 <0.02 <0.02 ir--*----+------f-------~r-----"

19-Jul-16 <0.02 <0.01 <0.02 L___ ~§..:!._uk!§. _L.. :9:92 -- I <O. 02 <Q'.Q~ __ ,

1 I1 02-Aug-16 i *********************** ************ 1******

<0.02

~~-~2*****+

<0.02

<O.o~--- r <0.02

<0.02 ******

L___lQ-Aug~-1_6_-+--*-*--*----------+,......,,,--.,,,--~*-:--. _ _ _,

1.?.::!\_ug::!?. ****ii- . . . . :9:9~ i*- <<00 . 0022 l,.* * * <<00 . 002

~}::!\:i:ig::J?. <0.02 -[ ',,. ,. : . . . . . . . . . . . . . . . . . .;

L 30-Aug..:.lL . . J <0.02 ; <0.02 i <0.02 i

w7-S~p-1Q ~_<_o_.o.~--"""'-:0.02_-1--_~~

i !

1.~::§~P::}~ T :9'.Q~ L.... <0.02. L <0.02 20-Se2.::_16 i <0.02 <0.02 I <0.02 i . . 26-Sep- ~~*-1-:o.oi*:_-~'-:o.o~-- , __ ~o.~?

2.b. AIR PARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H09 H32 H33 05-Jul-16 0.014 +/- 0.002 0.008 +/- 0.002 0.006 +/- 0.002 13-Jul-16 0.012 +/- 0.002 0.013 +/- 0.002 0.016 +/- 0.002 19-Jul-16 0.011 +/- 0.002 0.009 +/- 0.002 26-Jul-16 0.010 +/- 0.002 0.011+/-0.002 0.011+/-0.002 02-Aug-16 0.014 +/- 0.002 0.018 +/- 0.002 1.9:A:i:ig:16 ********************************-*

0.013 +/- 0.002 0.014 +/- 0.002

. ) ..........*..................*....**..........* ---***************'*----- -**************** .

16-A~g:l__ 0.008 +/- 0.002 0.008 +/- 0.002 0.010 +/- 0.

6 0.012 +/- 0.002 0.013 +/- 0.002 0.014 +/- 0.002 30-Aug-16 0.012 +/- 0.002 0.010 +/- 0.002 0.005 +/- 0.002

~0_7_-S_ep-16__-t_--..:~~,,.::1::~~.:::__J__~:~?...::::,~~---.......:!..o.~o.~o8~_:+/-::. ..~o~::___~

14-Se -16 0 +/- 0.002 <0.010

. 07 +/- 0.002 0.008 +/- 0.002 <0.010 0.009 +/- 0.002 <0.009 0.010 +/- 0.001 <0.012 <0.010 (A) Pump off upon arrival; failed and was replaced. Estimated run time 47.7 out of 139 hours0.00161 days 0.0386 hours 2.29828e-4 weeks 5.28895e-5 months .

2.b. AIR PARTICULATES- GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

Be-7 K-40 Cs-134 Cs-137 H09 0.0013 <0.0421

. . . . .3. . .2............................................0. . . *. .1. . .7.. ?.J:.!=_Q:91.??

. . . . . . . . . . . . . . .H 1 _:SQ:03 l 8 <0.0019 ............................ "1-********

<0.0013 <0.0369 I !

_H_3_3_ _'--- 0.1431+/-0.0144 J <0.0221 <O. oo 15 i <O:..;,.*.;__oo;;_;;,1~2. ___.______..;;_o;...;...0~01;__:_1_+/-____;___0.~00:;_;_2;_;;_6~,

3.a. SURFACE WATER- CpCi/L)

I Sample Collection Zr-95 Ba-140

Site Date Mn-54 Co-58 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140 I (A) (B) l Hl3 ! 13-Jul-16 <148 273 +/- 22 <3 <3 <7 <4 <8 <5 <5 <.....) <.....) <5 L =r1;~~ ___<01.56 ,. .3. . . 2. . . 4. . . . . +/-. . . . . 3. . . 9. . . .,. . . . . . . <.......1. . . . . . . . . .f***************<......6. . . . . . . . . . , <17 <7 <13 <12 <21 <6 <6 , <14

!______ __j ~~-S~p_-16______:='.!?JL __ ..,._3___4_ .__8___+/-___4___0___,________<_6.__.1_____ <6___,_____<_9_ 1__ ::§ _______ <13 <1 o <9 <5 <7 <10 H36 13-Jul-16 1* .. . .... .. .................................................... *******~* ........ .

<149 369 +/- 26.... ,.......................................

<3 , ...... <3 <8 <3 <8 <6 <5 <3 . . . . . . . . . . . . . . . . <3 <4

,. . . . . . IJ?~A~g-16 8886 +/- 158 391+/-21 <3 <4 <8 <3 <8 <6 <13 <3

<3

,.............................*......................... <8 ,

~-~1._0_8_-S_ep-16_ <158 378 +/- 41 J <6 <7 <12 <7 -..:1'+ <11 <9 <6 ' <6 <10 I (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight)

. ************************* .................................................................................................. T*******************-* .......................................................... ****:**********

i j Sample Collection Site Date Be-7 _K-40 . Co-58 l Co-60

--~**-\**--~

Cs-134 , Cs-137 Pb-210 Ra-226 Th-232 _. . . ~u'-'-2=;..=3""'5......,............Y-23 8 I* . H13

<12 <12 <13 i 826 +/- 350 974 +/- 11 86 +/- 14 61 +/- 1+/-62 i 308 +/- 49 <12 <10 <10 .

<10..............,.............................. 669 +/- 271 285 +/- 70 41+/-10. 18 +/- 4 208 +/- 46

<102 ------------***-** .. ****-***-**--*-**** ----***-------""""""

<87 1294 +/- 67 <8 <8 <8 <8 429 +/- 75 754 +/- 75 131+/-9

~--~"'"""'"""""'"""'"'""'"

47+/- 5 387 +/- 24 I H36 J?~!:\~g=~?J4.~~:I::.?~ 5120 +/- 239 ,.........<....2. . . .1...................4. . .4. . . . +/- . . . .1....8. . . . . . . . . . . . . .39

.. . . . . 5. . . . . . . . . . . . .< ......+/-

. . . . .7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1099+/-519 411+/-26 <29

. . . . . . . . . . . . . . . . . . . . . . . . . .,................................................................................................. ~

1. . .1. . .6. . . 0. . . .+/-. . . . .. .*. . . . . ..

. . . . . . . r**** . . . . . . . . . r-****

Sample Collection c ............ =s=it,,,e. . . . . . . . ;. . . . . . J?~!~. Be-7

--~--***-*~*----*"~*******

K-40 Co-58_+_Co.:§Q_ _Cs:134 9:137 _['b:21QJ_~~6 _Th:232 U-235 U-238

..........H ........ 1....5................., 15-At.1~t~6- ::.1 ~- -r13_ 1__:_<:'L+ <12 J_<IQQ5_j29s_oe 104 _1_12_~ --5.9_:1:_6__ 290 +/- 57 l:!16-...... 16-!:\':lg:L?. 58 +/- 15 111+/-26 <7 ! <6 I <6 I <7 182+/-511496+/-55 64+/-7 31+/-3 129+/-17

" :~;-~~~L~ :;;*~ ~]_,~ ";;_~]~ ~g __ ,. ~~~-:~~:~;~~]~;~'! ~-;; L~~;;;_~~- ~;:-~-' ~~~ :--~~"" .

3.d. GROUND WATER (pCi/L)

'*"'-*"w"'""-"" """"' "'"'"'***-**----"-'"" ........ ,,

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140

____ (~L (B)

H70

--** ...,.,,,.,,28-Jul-16 146 +/- 54 <58*****--*** <3

<3 ,., <7,,,,,,,,,,.,,,,, ., .., .. <3 <7 <5... ,,,,,,, , .....,

<4

...*,..,.,. "~"

<3 <3

.,,,,,,.,..., , , '"'"' <12 H71 28-Jul-16 416 +/- 60 457 +/- 46 <7 <7 <15 :

<7 <14 <10 <7 <6 <7 <16 H72 28-Jul-16 --*-*"""'"'"'

<167

-**-~-**** .

299 +/- 42 <6 <5 <13 <8 <17 <12

--*--.*-----***~

<7 <6 <7 <18 H73 28-Jul-16 <167 74+/- 14 <3 <3..

<7 <4 _,,_,::~_,,,, <6 <4 <4 <3 <9 H74 28-Jul-16 <167 351+/-43 <6 <7 13 <6 <13 <11 <9 <5 <6 <11 H75

--*-*-**-----*w 28-Jul-16

<167 273 +/- 23 <4 <3 <6 <4 <7 <5 .

<5

- --~---*---*--**

<3 <3 <5 H76 28-Jul-16 <45 <3

--- <167 <3

"~""""""" .,,, *~""W

.. ,,, <6 <3 <7 "'

<5 -~*- ""

<5 <3 ,,,,,_,,

<4 """"

<6""'""""'

H77

-*--*--**-----~ ..

28-Jul-16 <167 <76 <6 <5 10 <6 <12 <8 <8 ~

<5_...........

........... <6 <9 H78 28-Jul-16 <167 43 +/- 10 <3 <4 <7 '

<3 <7 <6 <5 ...

<3

' <4 <5 I H79 l 28-Jul-16 <167 <44 <3 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

<3

<6 '""'"'

<3 ,.

<8 <5 <5

""--~--"'"

<3. ......... ...

<3 <5 l (B) - These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2

- - - - ........ *****r ..................... I Sample .:1 Collection Site Date Be-7 K-40 1-131 j_ . Cs-134 ___ Cs-137 j I

I l

Sample I Collection Site I Date Be-7 K-40 1-131 Cs-134 Cs-137 4.c. MILK

- (pCi/L)

~r"*** *"*'"""~******~-*****

Sample Collection Ba-140 Site Date K-40 1-131 Cs-134 Cs-137 . La-140 J

j

..................\.......... . .............................-- ......... . *******-*********L (At There wa~ no sam~_~vailable during the 9.~l'.l_rt_er_.__

(A) - This tabulated LLD value is for Ba-140, either based on direct measurement of Ba-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity

RADIOLOGICAL SURVEILLANCE OF FLORIDA .POWER AND LIGHT COMPANY ST. LUCIE SITE FOURTH QUARTER 2016 BUREAU OF RADIATION CONTROL

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCJE SITE Offsite Dose Calculation Manual Sampling Fourth Quarter, 2016 Number of

!collection Frequency Locations Sampled Samples

~-----------+-------t---~-----;

~ 111ir 'b'": acl_i~tion__ ~ _kuaJ!~i:!L 0 --1 27 1

.A _ ____ _27 2.a. Air Iodines Weekly : 5 63 2.b. Air Particulates ly 5

- - - - ********************-***********-***********--**********************************************i***:...:.....: ... ::..:::.::: .*c ..............-*--******************************-*-***********-********l******************---**********-****************************************-******-*i*--******---***********-

63

13. Waterborne 3.a. Surface Water k eekJy I 1 13 I

- - - - 11.... ____ !. ___ . . . . ____ }_ _j 3.b. Shoreline Sediment !Semiannually , 2 0

~-Ingestion I 4.a. Fish and Invertebrates 4.a. l. Crustacea jsemiannuall;y_ _ ~____2_ _ _____,_____1 ____:

4.a.2. Fish !Semiannuall 2 1 3 9 ..................!

Total: 180 I. *-* * * * -* * * * **************-**------****-*-***]

NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

The marine fauna listed in this report were collected in part, under Florida FWC SAL030.

1. DIRECT RADIATION - TLD's - (µR/hour)

I Sample Deployment 07-Sep-16 Sample Deployment 07-Sep-16 I

I Site Collection 08-Dec-16 Site I Collection 08-Dec-16 I N-1 SW-2 I 3.02 +/- 0.12 2.91+/-0.15 NNW-5 I 2.89 +/- 0.19 SW-5 3.42 +/- 0.04 NNW-10 3.68 +/- 0.22 SW-10 3.04 +/- .,,_,, ______

0.05 NW-5 2.85 +/- 0.29 SSW-2 2.94 +/- 0.27 NW-10 3.99 +/- 0.33 ...........-

SSW-5 3.46 +/- 0.27 WNW-2 2.92 +/- 0.13 SSW-10 4.27 +/- 0.20 WNW-5 7.93 +/- 6.5l(A) S-5 3.57 +/- 0.12 WNW-10 _

................ ........... ****************-** ********* 2.85 +/-**********-*-*-*******

0.29 S-10 2.91+/-0.35 W-2 2.81+/-0.11 -~-------*-

- S/SSE-10 2.82 +/- ---0.02

~5 3.35 +/- 0.15 SSE-5 2.86 +/- 0.33 I

1 W-10 2.65 +/- 0.16 SSE-10 I 3.00 +/- 0.15 WSW-2 2.99 +/- 0.10 SE-1 ....

2.89 +/- 0.17 WSW-5 2.96 +/- 0.18 H-32 I 3.20 +/- 0.15 I WSW-10 2.68 +/- 0.20 (A) Based upon these values, this TLD was removed from service pending further analysis.

2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (pCi/ m 3 )

Collection Date H08 H12 H14 H30 H34

- - - - "****-** ......................__ ,,....*........ I 04-0ct-16 <0.03 <0.03 <0.03 <0.03 : <0.03 10-0ct-16 <0.02 <0.02 <0.02 <0.0l(A) <0.02 I I

18-0ct-16 <0.03 <0.03 <0.03 CB) <0.03 24-0ct-16 <0.02 <0.02 <0.02 (C) <0.02 01-Nov-16 <0.01 <0.01 <0.01 <0.02 <0.01 09-Nov-16 <0.01 <0.01 <0.01 <0.01 <0.01 14-Nov-16 <0 04 <0.04 <0.04 <0.04 <0.04 22-Nov-16 <0.01 <0.01 <0.01 <0.03(D) <0.01 I I

30-Nov-16 <0.02 <0.02 <0.02 <0.02 I <0.02 08-Dec-16 <0.01 <0.01 <0.01 <0.01 I <0.01 :

14-Dec-16 <0.02 m'~H~-"

<0.02

"~'

<0.02 <0.02 I <0.02 i j

22-Dec-16 <0.01 <0.01 ---**

<0.01 *******--*********

<0.01 <0.01 I 29-Dec-16 <0.02 <0.02 <0.02 <0.02 <0.02 I (A) No power. Estimated run time 60 out of 145 hours0.00168 days 0.0403 hours 2.397487e-4 weeks 5.51725e-5 months .

(B) No power for sampling period, no sample collected.

(C) No power for sampling period, no sample collected.

(D) Vacuum pump failed and was replaced. Estimated run time 108.5 out of 193.l hours.

2.b.l. AIR PARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H08 H12 H14 H30 H34 04-0ct-16 <0.007 <0.007 <0.006 <0.007 <0.007 10-0ct-16 0.009 +/- 0.002 12 +/- 0.002 0.009 +/- 0.002 0.006 +/- 0.002 18-0ct-16 0.009 +/- 0.002 0.015 +/- 0.002 0.005 +/- 0.002 24-0ct-16 0.015 +/- 0.003 0.014 +/- 0.003 (C) 0.016 +/- 0.003 01-Nov-16 7 +/- 0.002 0.023 +/- 0.00 0.014 +/- 0.003 0.021 +/- 0.002 09-Nov-16 0.020 +/- 0.002 0.019 +/- 0.002 0.020 +/- 0.002 0.014 +/- 0.002 0.008 +/- 0.002 14-Nov-16 0.030 +/- 0.004 0.029 +/- 0.004 0.027 +/- 0.003 0.027 +/- 0.003 0.021 +/- 0.003 22-Nov-16 0.012 +/- 0.002 0.017 +/- 0.002 0.031 +/- 0.003 30-Nov-16 0.020 +/- 0.002 0.021 +/- 0.002 0.022 +/- 0.002 08-Dec-16 0.018 +/- 0.002 0.027 +/- 0.003 14-Dec-16 0.017 +/- 0.003 0.018 +/- 0.003 0.013 +/-

22-Dec-16 0.011 +/- 0.002 0.008 +/- 0.002 29-Dec-16 0.008 +/- 0.002 0.015 +/- 0.002 0.010 +/- 0.002

<0.017 <0.016 <0.017 <0.013 (A) No power. Estimated run time 60 out of 145 hours0.00168 days 0.0403 hours 2.397487e-4 weeks 5.51725e-5 months .

(B) No power for sampling period, no sample collected.

(C) No power for sampling period, no sample collected.

(D) Vacuum pump failed and was replaced. Estimated run time 108.5 out of 193.l hours.

2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m3 )

' I i Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 )

H08 0.1446 +/- 0.0097 <0.0189 <0.0012 <0.0010 0.0153 +/- 0.0037 H12 0.1623 +/- 0.0103 <0.0156 <0.0012 ! <0.0010 0.0138 +/- 0.0037 H14 0.1639 +/- 0.0123 <0.0234 <0.0015 ' <0.0011 <0.0380

~-,**

H30 0.0984 +/- 0.0096 <0.0207 <0.0017 <0.0010 0.0150 +/- 0.0046 H34 0.1547 +/- 0.0122 <0.0216 <0.0015 i <0.0011 <0.0350

3 .a. SURFACE WATER - (pCi/L)

Sample Collection J Zr-95 Ba-140 Site Date Cs-137 La-140 (B)

H15 04-0ct-16 <161 467 +/- 45 <7 <6 <12 <5 <13 <12 <10 ' <6 <6 <10

-~ -A 10-0ct-16 <161 ' 380 +/- 27 <3 i <3 <../ <.._j * '-0 <6 '

<3 <3 <4

<6 <12*.- ..... ,...... <7 18-0ct-16 <155

'*-***~'-** .v.--~~~***~--~

335 +/- 42

"*---~"* "~'""*~*v ..w,-*

<6 . """' -*-----<15 <9 <7

-** -.~

<6

<7 <10"" --~

24-0ct-16 823 +/- 38 392 +/- 27 <3 <3 <7 <3 <7 <5 <5 <3 I <4 <5 01-Nov-16 <158 350 +/- 25 <3 <3 <6 <3 _<7 ,_

._.. _._. ________ .. ' <5 <3 <3 <3 <9

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

,______ ___.,., 09-Nov-16 , <158 429 +/- 28 *****-+*--__<3 ..,__ ...... ,,,.......,<3 .... <6

<4

- - -**~~"'"

<7.............

<5 <3

<3 <3 "'""

<10 14-Nov-16 <154 398 +/- 43 <6 <6 <13 <6

......................................... '******************* <16 <10 <12 <5 <7 <11

,................................,............... 22-Nov-16 .

<163 413 +/- 43 <7 <6

<16 ,,,,,,'57 <15-...... <11 <19 <5 <7 <14

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

30-Nov-16 <163 _____ , __4__1__1____+/-______4__ ~-- __ <6 ___,...........<.. _7___ ,__~!. 4.. . . . ___<:.<L________ .'515.... ... ~!! _____22_____ --~--- ___'5?. .. __,________________ <9 ,

07-Dec-16 <162 370 +/- 26 <3 <3 ' <7 <3 <7 <5 ' <6 <3 ......... ~4. <5 14-Dec-16 <162 ' 414 +/- 28 <3 <3 <7

...........................................................,......_.......................,........-1.-----------...........,................, ...................,.,...........................,...., ....,....,.,.................,.,.,., .....,.,..,........ _ ......... + ...............,......... I <3 __

'5?__._ .... ---~~------ L--~'----L :S-3~--- _____<:_4 _____+--*--*------------*-*--* <11 22-Dec-16 <170 366 +/- 26 <3 <3 <7 <4 <7 <5 <3 ... ....... <3.. ........................... <3 <10

---*'********** -*~***-~-**- ~"'""""'""'"'"' .,.,,, *NA"'--*~m*-**,_,.,, *~"*"M"***~" .,.,,,."~--*

29-Dec-16 <170 417 +/- 28 <3 <3 <7 <3 <7 <5 <3 <3 <3 <11 H59 18-0ct-16 <156 331+/-25 <3 <3 <6 <3 <7 <6.......... <5 --*-

<3

-~--**-----**----*-*--

<3 I <5 429 +/- 44 <17.............. <6 :~ :~-- . J. ~14 . . ..

07-Dec-16 <162 391+/-42 <5 <7 <13 <7 <14 <11 <10 <6 <7 ! <9 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement of Ba-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT- foCi/h: drv weight)

Sample Collection I - -

Site Date : Be-7 K-40 Co-58 Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232 H59 4.a.l. CRUSTACEA - Blue Crab - (oCi/kg, wet weight Sample Collection ! Co-60 Site Date K-40 Mn-54 Co-58 Fe-59 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 H15 This samole not collected.

I H59 22-Dec-16 1633 +/- 193 <27 <24 : <45 <30 <56 <23 <26 <459 I <122 4~it:2.: FISH - !Vlixe<l, Sgecies - (pCi/lq~;, ~~t _weight) _ ,- . T . ._._. . ___. . _____. ___. ____.

Sample Site_

Collectio~

~ + r l

- - - - -*-***********-**-* ....... _ _ , _ _ .. _ _..,................ _ ....... _ .. _ .....r K:+/-Q _ ____,,j_M_n-_5_4_,___c__ o-_5_8_,_._Fe-59 Cs-134

~ ..................- -............... _

Cs-137 II Ra-226 Ra-228 H15 08-Dec-16 I 2399 +/- 169 <19 I <16 <41 <44 <19 ! <22 <420 <82 L.. H59~____This samJ~J.~-~~~_Qr._eviously collected.

4.b. BROADLEAF VEGETATION - Brazilian Pepper- (pCi/kg, wet weight)

Sample Collection II Site Date

-- ~-*---*

Be-7 K-40 I-131

~-**~******~~ *-~--**--*------

Cs-134 Cs-137 Pb-210 Pb-212 Ra-226 Ra-228 H51 18-0ct-16 2160+/-100

4960 +/- 236 <20 <15 <21 <1270 15 +/- 6 <355 <71 09-Nov-16 1440................................

+/- 87 .. 5400 +/- 243

<38

<13

<17 <1080 <28 <322 "'"""

<67 07-Dec-16 593 +/- 51 3620+/- 182 <18 <10 <15 <1277 <27 <284 <63 H52 18-0ct-16 I 1460 +/- 55 3260 +/- 130 <10 <7 <10 204 +/- 56 ' <16 <185 <31 09-Nov-16_ ""_[ __ &§.:!_~?? 3660 +/- 136 <19 <7 <7 134 +/- 42 <13 <149 . <28

--- 07-Dec-16 863 +/- 48 I 4964 +/- 187 <14 <9 <10 321+/-73 <19 .

<201 <41 H59' 18-0ct-l 6 2170 +/- 73 lJJ_Q~J"1?_ <11 <8 <9 290 +/- 58 <18 <206 <34

---~ ----~-* --

09-Nov-16 1480 ....................

+/- 86 ....... .....2700

+/- 162

"'"'"°""""" """"HM<*rn*<<**- ...... .....

._ _<39 .............. -****-H"-~

<14 <15 <1180 <29

..........*-*******-**.. **--*~*

<331 <57 07-Dec-16 769 +/- 61 3138+/-171 <21 <13 <17 <1084 <23 <292 <61

ST. LUCIE SITE Supplemental Sampling Fourth Quarter, 2016 1-----"'--------*--- -

~amRle Tl'J1<'

I Number of

!collection Freguency Locations Samnled Sam12les 1

1. Direct Radiation Quarterly 9 9 L.. Airborne 2.a. *-Air Iodines __ ,. Weekly 3 34 2.b. Air Particulates i;eekly 3 34

3. Waterborne II 3.a. Surface Water -. (onthly _ 2 6 l

3.b. Shoreline Sediment !Semiannually 4 0 i

3 .c. Beach Sand

- - - - -**-*********-*---..*---*---*-*-*-******* ..................................... --*****-****** ............. §_~_l!!i.~~?.~11.Y . . .................. __ . . . . . . !. . . . . 3

.. .....................................-*--*********-******** 0 3.d. Ground Water Quarterly 10 10

~-

!I

4. Ingestion i 4.a. Garden Crops Annually 1 0 4.b.---*Citrus Annually 1 0 4.c. Milk ;Quarterly 1 0 Total NOTE: Measurement results having magnitudes that are significantly above the background of the measurement system are reported as net values plus or minus a one-standard-deviation error term. Measurement results that are not significantly above background are reported as less than a Lower Limit of Detection (<LLD), which is an estimated upper limit (with at least 95% confidence) for the true activity in the sample.

1. DIRECT RADIATION -TLD's - (µRJhour)

Sample Deployment 07-Sep-16 I Site i

Collection 08-Dec-16 H08 3.59 +/- 0.27 -

H09

3.33 +/- 0.16 I H12 7.87 +/- 0.35 i H14 3.45 +/- 0.17 I i

I \

r*

I H33 H34 3.40 +/- 0.08 3.02 +/- 0.20 ____i

-,./

l H60 3.07 +/- 0.07 I H61 4.07 +/- 0.09 [

i t==ir62 *-*~

3.54 +/- 0.18 m----'

I 2.a. IODINE-131 IN WEEKLY AIR CARTRIDGES - (pCi/m3 )

Collection Date H09 H32 H33 6 <0.03 <0.03 <0.03 10-0ct-16 <0.02 <0.02 <0.02 18-0ct-16 <0.03 <0.03 <0.03 24-0ct-16 <0.02 <0.02 <0.02 01-Nov-16 <0.01 <0.01 09-Nov-16 <0.01 <0.01 14-Nov-16 <0.04 <0.04 22-Nov-16 <0.01 <0.01 30-Nov-16 <0.02 <0.02 08-Dec-16 <0.01 <0.01 (F 14-Dec-16 <0.02 <0.02 <0.02 22-Dec-16 <0.01 <0.01 <0.01 29-Dec-16 <0.02 <0.02 <0.02 (A) No power. Estimated run time 122.8 out 194 hours0.00225 days 0.0539 hours 3.207672e-4 weeks 7.3817e-5 months .

(B) thru (F) No power for sampling period, no sample collected.

2.b. AJRPARTICULATES - GROSS BETA- (pCi/m3 )

Collection Date H09 H32 H33 04-0ct-16 <0.007 i <0.006 ! <0.006 10-0ct-16 0.008 +/- 0.002 0.009 +/- 0.002 0.009 +/- 0.0 18-0ct-16 0.011+/-0.002 0.009 +/- 0.002 0.014 +/- 0.002 24-0ct-16 0.018 +/- 0.003 0.014 +/- 0.002 i 0.018 +/- 0.003 01-Nov-16 0.015 +/- 9.:9-9~ I 0.019 +/- 0.002 L9:99?::C:9:-99.~(~)

09-Nov-16 0.018 +/- 0.002 0.019 +/- 0.002 I (B 14-Nov-16 0.032 +/- 0.003 22-Nov-16 0.011 30-Nov-16 08-Dec-16 0.015 +/- 0.002 14-Dec-1 0.017 +/- 0.003 22-Dec-16 0.012 +/- 0.002 0.007 +/- 0.0 0.011 +/- 0.002 29-Dec-16 0.012 +/- 0.002 0.007 +/- 0.002

<0.015 <0.011 (A) No power. Estimated run time 122.8 out 194 hours0.00225 days 0.0539 hours 3.207672e-4 weeks 7.3817e-5 months .

(B) thru (F) No power for sampling period, no sample collected.

2.b. AJRPARTICULATES- GAMMA ANALYSIS OF QUARTERLY COMPOSITES- (pCi/m3 )

Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 H09 0.1289 +/- 0.0111 <0.0194 <0.0014 <0.0011 <0.0426 H32 0.1379 +/- 0.0112 <0.0234 <0.0013 <0.0380 H33 I 0.1161 +/- 0.0102 <0.0191 <0.0015 <0.0014 0.0151+/-0.0046

3.a. SURFACE WATER- CpCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 1-131 Cs-134 Cs-137 La-140 I (A) (B)

TT1 '"l 18-0ct-1 /" -"156 318 +/- 24 <3 <3 <7*********-..***** <4 <8 <5 <4 <3 <3 <6 09-Nov-16*****

"'"W'"~--------*-*-*'"'""'

<155

. ............................... 298 +/- 24

<3 _<3

<6 <3 <7 <4 <3 <3 <3 <10

~-- -~--~

07-Dec-16 <162 301+/-24 <3 <3 <6 <3 <8 <6 <4 <3 <3 <6

-~ ' <12 ' <7 <13 <11 <6 <5 <6 <12 H36 18-0ct-16 <155 330 +/- 40 <6 09-Nov-16 <155 356 +/- 26 <3 <3 <6 I <4 <7 <5 <3 <3 <3

<lU 07-Dec-16 <162 388 +/- 27 <3 <3 <7 I <3 <8 <5 <4 <3 <3 <..~

(A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) - These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

3.b. SHORELINE SEDIMENT - (oCi/k12:. drv wei12:ht)

- - - 1 Sample Collection Site Date Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232

- - - - -*******H .......1. . .6_____,*-~--*--************T. . . .h. . ~.~~~1.!1..P.l~ . .'Y.~.~. P~~Y~().!:!.~!;r.c.:().ll~c.;!~~:--*-*******- **-***-**--************************ . . . . . . -***-******* ............... .. . . . ***************-*********-- -**-********. . . . . . . . . * * * * *-* * * * *

H19 This sample was previously collected.

3 .c. BEACH SAND - (oCi/k12:. drv wei12:ht)

Sample Collection Site Date Co-60 Cs-134 Cs-137 Pb-210 Ra-226 Th-232

..............................*-*********-****f*****-*-

H15 This sample was previously collected. I

. . . . . . . . . .H . . . .h. . . .i. .s. . . .s. . .a. . .m

. . . . . 1. . . 6. . . . . . . . . . . +...................................T . . . .L.*P. . 1. .e. . . . w

. . . . .a. . . s. . . .P Y.~ ~le~c ~d~*~~~~~~~~~~~~~~~~~~~~~-~~~~~~~~~~~~~~~~.~~~.~~

. . :..r.e. . .v. . . i. .o. . . .u. . .s. . 1. . . c-

. . .0-l. . . .t-. e. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .-.. . -.. . .-.. . .-......-.. . -.. . .--lJ H19 . . . Ihi.~. .~i:t!.1:1.l?.!~..'Y.~~-E~~Y!().1:1-~.ly_c.;_e>_ll~c.;!~~:. __ --**************** .. *********-*******-****-************************* _ _. . . . . . . . . . . . . . . . . . . ***-********* . . . . . . . . . . . . . . . . . . -********************* J

3 .d. GROUND WATER CpCi/L)

Sample Collection Zr-95 Ba-140 Site Date H-3 K-40 Mn-54 I Co-58 Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 Cs-137 La-140

.................. .... (A) . . (B)

.......-**-********-**-**-****-* .....----*-****-********---.. oOooOH .. H I

I H70 20-0ct-16 <158 367 +/- 46 <7 <7 <14 <6 <15 <12 <12 <6 <6 <10 H71 20-0ct-16 423"+/- 59 I............ <82

........................... <6 <6 <10 <7 <14 <9 <9 <5 <6 <10 H72 20-0ct-16 <161 415 +/- 42 <7 <6 <11 <6 <14 <12 <11 *

<6 I

<7 <10 H73 20-0ct-16 <158 73 +/- 12 <3 <3 <6 <4 <7 <6 <5 <3 <3 <4

-- -~-- ~---- --**-*-~

H74 20-0ct-16 <158 265 +/- 23 <4 <3 <6 <4 <7 <6 ***********

<6 <3 <3 <5 TT'7C

.1..1. I _, 20-0ct-16 <161 355 +/- 40 **************~******

<6 <5 <13 <8 <16 <10 **-

<11..................

<6 <7 <9

- ..................... ~ ..........

H76 20-0ct-16 <157 <81 <4 <6 <12 <5 <12 <9 <11 <5 <6 <11 H77 20-0ct-16 <158 <34 <3 <3 <7 <3 <6 <6 <6 <3 <3 <5

---*-- ~----*

~

H78 20-0ct-16 <161 68+/-24

---**--- ********---**-- **********--**-r****-**-*-**************-*-************

<5 <7 <13 <6 <14 <9 <11 <6

<5

- - - - -****-.----*--*************--**** ~ .......

<11 H79 20-0ct-16 <158 I <37 <3 <3 <6 <3 <7 <6 <6 <3 <3 <5 (A) - These tabulated LLD values for Zr/Nb-95 are the higher of the individual parent or daughter LLD's.

(B) -These tabulated LLD values are for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth of La-140, whichever method yields the greater sensitivity for a given sample.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 4.a. GARDEN CROPS - (pCi/kg, wet weight)

' s~7,~le I Co~:=on ' Be-7 i --~=0-- T 1-131 ' Cs-134 Cs-137 -1

~~*~*~**~***~-~***_-~_h_~--~**_:a_-~_,-p-*l********e***'*****w******-a-s*-**-p*-**r*-*e*****v***-iously~'**_~o_.l_-~e-~_~e_d_:*_-***_**___****'**_-**-_*******_**-**_**---_-_***-_-_** _* * * *_* * * *_* -*

_-*-* _*

_ _-*_*-_**_**-*-_-_***_* * * *_* * * *~'

1 4.b. CITRUS - foCi/k2: wet weig:ht)

Sample I Collection I Site Date Be-7 I K-40 I-131 Cs-134 Cs-137 I I; I I I

H23 I This sample was previously collected. I I

4.c. MILK - (oCi/L)

Sample Collection Ba-140 Site Date K-40 I-131 Cs-134 Cs-137 I La-140 I (A)

(A) - This tabulated LLD value is for Ba-140, either based on direct measurement ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ATTACHMENT C RESULTS FROM THE 2016 INTERLABORATORY COMPARISON PROGRAM CONDUCTED BY DEPARTMENT OF ENERGY

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 DOE-MAPEP 34 RESULTS Radionuclide Result Ref. Flag Acceptance Value (Evaluation) Range Matrix: RdF Air Filter (Sq/filter)

MN54 4.828 4.53 A 3.17-5.89 C057 2.736 2.94 A 2.06-3.82 C060 4.118 4.02 A 2.81 - 5.23 ZN65 4.062 3.57 A 2.50-4.64 CS134 0.007 0 A False Positive Test (within acceptance range)

CS137 2.396 2.30 A 1.61 - 2.99 Matrix: GrF Air Filter (Sq/filter)

Gross Beta 0.90 0.79 A 0.40-1.19 Matrix: Mas Soil (Bq/kg)

K40 618.83 607 A 425- 789 MN54 1195 1160 A 812 -1508 C057 1003.17 992 A 694 -1290 C060 1186.67 1190 A 883 -1547 ZN65 739 692 A 484- 900 CS134 1020.09 1030 A 721 -1339 CS137 1.562 0 N (*1) False Positive Test (within acceptance range)

Matrix: MaW Water (Bq/L)

H3 0.686 0 A False Positive Test (within acceptance range)

MN54 11.967 11.1 A 7.8 -14.4 C057 -1.44 0 A False Positive Test (within acceptance range)

C060 12.644 11.8 A 8.3 - 15.3 ZN65 15.522 13.6 A 9.5 -17.7 CS134 16.110 16.1 A 11.3 -20.9 CS137 23.056 21.2 A 14.8-27.6 SR90 8.77 8.74 A 6.12 -11.36 Matrix: RdV Vegetation (Sq/sample)

MN54 -0.032 0 A False Positive Test (within acceptance range)

C057 10.58 11.8 A 8.3 -15.3 C060 0.031 0 A False Positive Test (within acceptance range)

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ZN65 8.832 9.6 A 6.7 - 12.5 CS134 9.258 10.62 A 7.43 -13.81 CS137 5.518 5.62 A 3.93- 7.31 Evaluation: A= Acceptable, W =Acceptable with Warning, N = Not Acceptable In MAPEP 32, the results for gamma on air filters, water, and vegetation matrices for those nuclides associated with nuclear power plant operation and using analytical methods used in the REMP are acceptable.

There was one relevant data flag for MAPEP 34 for the soil matrix:

1) The Cs-137 result for the soil matrix for the MAPEP #34 lnterlaboratory Crosscheck Program showed a "Not Acceptable" result for reporting a "false positive" on Cs-137 in soil.

While the 661 keV peak was identified in 3 of 6 long counts, it was not identified in the normal 2-hour counts which are typical counting times for the power plant samples. Based on this information and BRC reporting protocols, the BRC would not have reported the false positive Cs-137 in normal sample analyses.

A Site Condition Report was generated to document the failure of the required Co-60 isotopic soil matrix analysis. The unknown result is the only failure this year for the two sets of interlaboratory crosscheck analyses. All other MAPEP ODCM required REMP Program unknowns reported by the BRC in 2016 were acceptable.

MAPEP Series #35 had no lnterlaboratory crosscheck failures related to the normal nuclear site required isotopes including Cs-137 in soil. Also, a second Cs-137 in soil unknown was analyzed satisfactorily from the ERA MRAD-25 PT Program:

Radionuclide Result Ref. Flag Acceptance Value (Evaluation) Range CS137 in Soil 6710 6700 A 5130 - 8620

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 DOE-MAPEP 35 RESULTS Radionuclide Result Ref. Flag Acceptance Value (Evaluation) Range Matrix: RdF Air Filter (Sq/filter)

MN54 2.953 2.75 A 1.93-3.58 C057 2.396 2.48 A 1.74-3.22 C060 3.276 3.26 A 2.28-4.24 ZN65 -0.029 0 A False Positive Test (within acceptance range)

CS134 1.963 2.04 A 1.43-2.65 CS137 1.85 1.78 A 1.25-2.31 Matrix: GrF Air Filter (Sq/filter) - (No MAPEP Gross Beta, Unknown from ERA MRAD-25 PT Program)

Gross Beta 77.24 60.3 A 38.1 -87.9 Matrix: MaS Soil (Bq/kg)

K40 581.25 588 A 412 - 779 MN54 0.718 0 A False Positive Test (within acceptance range)

C057 1215 1190 A 833-1547 C060 872 851 A 596 -1106 ZN65 766.25 695 A 487 - 904 CS134 -0.073 0 A False Positive Test (within acceptance range)

CS137 1135 1067 A 747 - 1387 Matrix: MaW Water (Bq/L)

H3 354.5 334 A 234-434 MN54 15.025 14.8 A 10.4-19.2 C057 25.163 27.3 A 19.1 - 35.5 C060 0.208 0 A False Positive Test (within acceptance range)

ZN65 18.600 17.4 A 12.2-22.6 CS134 21.953 23.9 A 16.7-31.1 CS137 0.041 0 A False Positive Test (within acceptance range)

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Matrix: RdV Vegetation (Sq/sample)

MN54 7.338 7.27 A 5.09- 9.45 C057 7.233 6.81 A 4.77-8.85 C060 4.820 4.86 A 3.40-6.32 ZN65 5.535 5.40 A 3.78- 7.02 CS134 -0.045 0 A False Positive Test (within acceptance range)

CS137 5.675 5.54 A 3.88- 7.20 Evaluation : A= Acceptable, W =Acceptable with Warning, N = Not Acceptable In MAPEP 34, the results for gamma on air filters, water, soil, and vegetation matrices for those nuclides associated with nuclear power plant operation and using analytical methods used in the REMP are acceptable. There are no relevant data flags.

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ATTACHMENT D Industry Initiative Ground Water Protection Program Tritium in Ground Water Monitoring 2016

2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 A. Description of Program:

Quarterly sampling & analysis for Tritium & principle gamma emitters is performed by the State of Florida Department of Health (DOH) and Bureau of Radiation Control (BRC},

pursuant to an Agreement between FPL and DOH, as part of the ODCM REMP sampling program.

The wells identified for radiological environmental sampling in support of the industry initiative are listed below, and in Appendix B-2 of the ODCM. The ten wells are on the

'outside' perimeter of the protected area. Two locations where the Plant ID ends with "S" are shallower wells adjacent, within a few feet, of a deeper well at the same location.

State ID St. Lucie Plant ID Location Description H70 GIS-MW-ES West of A 1A; between the discharge canal and Gate "B" H71 GIS-MW-EI West of A1A; between the discharge canal and Gate "B

H72 GIS-MW-SI South of Intake canal and the adjacent access road H73 GIS-MW-SWS S/W corner of Intake canal and the adjacent access road H74 GIS-MW-SWI S/W corner of Intake canal and the adjacent access road H75 GIS-MW-WI West of plant site and intake canal; South of switchyard H76 H76 North of Simulator; South of Big Mud Creek H77 H77 East of Barge Slip; By LU bldg H78 H78 South of North Warehouse H79 H79 West of A1A and East of Parking Lot B. St. Lucie 2016 Tritium Results (1l Summary, pCi/L Well number 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter H70 <145 <152 146 <158 H71 685 575 416 423 H72 <155 <152 <167 <161 H73 <156 <161 <167 <158 H74 <156 <161 <167 <158 H75 <156 <152 <167 <161 H76 <145 <152 <167 <157 H77 <156 <152 <167 <158 H78 <156 <152 <167 <161 H79 <155 <152 <167 <158 Notes

1. Samples analyzed for H3 and principle gamma emitters; tritium is the only fission product identified. Naturally occurring K-40 is occasionally identified.

2. Laboratory H3 MDA is about 150 pCi/liter Map depicting the well locations follows.

L-2017-053, Annual Radiological Environmental Operating Report for Calendar Year 2016

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L-2017-053, Annual Radiological Environmental Operating Report for Calendar Year 2016

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