Text

Annual Radiological Environmental Operating Report for Calendar Year 2017
	ML18113A050
Person / Time
Site:	Saint Lucie
Issue date:	04/19/2018
From:	Synder M; Florida Power & Light Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	L-2018-088
	Download: ML18113A050 (69)
	v • d • e

F=PL APR 1 9 2018 L-2018-088 10 CPR 50.4 10CFR 50.36 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 2017 The enclosed report is being submitted pursuant to Technical Specification 6.9.1.8. The Annual &diological Environmental Operating Report provides information summaries and analytical results of the Radiological E nvironmental Monitoring Program (REMP) for calendar year 2017.

Please contact me at (772) 467-7036 should there be any questions regarding this report.

Sincerely, Michael J. Snyder Licensing Manager St. Lucie Plant

Enclosure:

2017 Annual Radiological E nvironmental Operating Report (68 pages)

MJS / spt Florida Power & Light Company 650 1 S. Ocean Drive, Jensen Beach, FL 34957

2017 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:

Prepared by: - ~

/

Reviewed by:~ ~

2017 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 Radiological Monitoring Program Annual Summary TABLE 1 Deviations/ Missing Data TABLE 1A Analyses with LLDs Above Required Detection Capabilities TABLE 1 B 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 2017 Second Quarter 2017 Third Quarter 2017 Fourth Quarter 2017 Results from the lnterlaboratory Comparison Program 2017 ATTACHMENT C Ground Water Protection , Industry Initiative ATTACHMENT D

2017 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 Techn ical 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 th ree locations. Samples are collected and analyzed monthly. Broad leaf vegetation samples are analyzed by gamma isotopic measurements.

2017 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. lnterlaboratory 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 fo rmer 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 analytical 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.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Ill. DISCUSSION AND INTERPRETAT ION 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 implemented a new TLD alongside the old TLDs starting in Quarter 1 of 2017. Both the old and new TLD measurements are listed in the quarterly reports from BRC , however, only the new TLD measurements are used in the summary.

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.

1 *- -

TABLE 1 Page 1 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 . 2017 (County, State)

PATHWAY: DIRECT RADIATION SAMPLES COLLECTED : TLD UNITS: micro-R/hr Location with Highest Annual Mean Name c Mean (f/

Type and Total Number of Lower Limit of All Indicator Distance & Range Control Locations Analyses Performed Detection a (LLD) Locations Direction Mean (f/ Range Mean (f/ Range d 3.1 5 (102/104) NW-10 3.96 (4/4) 3.31 (4/4)

Exposure Rate , 106 2.20-4.61 9.6 mi. , NW 3.48-4.57 2.88 - 3.83 Number of Non-Routine Reported Measurements= 0

TAB LE 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, 2017 (County, State)

PATHWAY: AIRBORNE SAMPLES COLLECTED : RADIOIODINE AND PARTICULATES UNITS: PICO - Ci/M 3 Location with Highest Annual Mean Name c Mean (f/

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, 255 0.01 2 <MDA <MDA Gross Beta , 255 0.0064 0.0136 (259/260) H-34 0.015 (50/52) 0.015 (52/52) 0.0040 - 0.0490 0.5 mile, N 0.004 - 0.049 0.004 - 0.027 Composite Gamma Isotopic, 20 7

Be 0.0006 0.1384 (16/16) H-14 0.1478 (4/4) 0.1375 (4/4) 0.0715 - 0.1828 1 mile, SE 0.0792 - 0.1828 0.0696 - 0.1654 0.0008 <MDA <MDA <MDA <MDA 0.0008 <MDA <MDA <MDA <MDA 0.0185 (16/16) H-30 0.0247 (4/4) 0.0158 (4/4) 0.013 - 0.0324 2mile , W <0 .0113 - 0.0324 <0.0415 - 0.0204 Be-7 & Pb-210 are naturally occurring.

Number of Non-Routine Reported Measurements = 0

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, 2017 (County, State)

PATHWAY: WATERBORNE SAMPLES COLLECTED : SURFACE WATER UNITS: PICO - Ci/LITER Location with Highest Annual Mean Namec Mean (f?

Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f? Range Mean (f/ Range Tritium , 64 172 201 (1 /52) H-15 201 (1/52) <MDA (0/12)

<1 mi. , ENE/E/ESE Gamma Isotopic, 64 40 K 367 (51/52) H-15 58 367 (51/52) 371 (12/12) 286 - 457 <1 mi. , ENE/E/ESE 286-457 315 - 434 54 Mn 3 <MDA <MDA sgFe 6 <MDA <MDA 58 Co 3 <MDA <MDA 60 Co 4 <MDA <MDA 65zn 7 <MDA <MDA 95 Zr-Nb 6-3 <MDA <MDA 131 1 4 <MDA <MDA 134Cs 4 <MDA <MDA 131Cs 4 <MDA <MDA 140 Ba-La 9-3 <MDA <MDA K-40 is naturally occurring .

Number of Non-Routine Reported Measurements= 0

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, 2017 (County, State)

PATHWAY: WATERBORNE SAMPLES COLLECTED : SHORELINE SEDIMENT UNITS: PICO - Ci/Kg , DRY Location with Highest Annual Mean Namec Mean (f/

Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations 8

Analyses Performed Detection (LLD) Locations Mean (ft Range Mean (ft Range Gamma Isotopic, 4 7

Be 56 <MDA <MDA 40K 100 424 (1/2) H-15 424 (1/2) 253 (1/2)

<1 mi, ENE/E/ESE 58 Co 6 <MDA <MDA 60 Co 7 <MDA <MDA 134Cs 7 <MDA <MDA 131Cs 7 <MDA <MDA 210Pb <MDA 226Ra 15 269 (1/2) H-15 269(1/2) 103 (1/2)

<1 mi., ENE/E/ESE 232Th 25 88 (1/2) H-15 88 (1/2) 48 (1/2)

<1 mi., ENE/E/ESE 23su H-15 17(1/2) 17(1/2) 7 (1/2)

<1 mi. , ENE/E/ESE 23su 234 (2/2) H-15 234 (2/2) 123.5 (2/2) 224 - 243 <1 m f. , ENE/E/ESE 224 - 243 77-170 Be-7 , K-40 , Pb-210 , Ra-226 , Th-232 , U-235 & U-238 are naturally occurring . Number of Non-Routine Reported Measurements= 0

TABLE 1 Page 5 of 8 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL

SUMMARY

Name of Facil ity St. Lucie Units 1 & 2 , Docket No(s) . 50-335 & 50-389 Location of Facility St. Lucie, Florida , Reporting Period January 1 - December 31 , 2017 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED : CRUSTACEA UNITS: PICO - Ci/Kg , WET Location with Highest Annual Mean Namec Mean (ft Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations A nalyses Performed Detectiona (LLD) Locations Mean (ft Range Mean (ft Range Gamma Isotopic, 4 40K 270 1464(2/2) H-15 1464 (2/2) 1274 (2/2) 1333-1594 <1 mi. , NE/ENE/E 1333-1594 1142-1406 54 Mn 16 <MDA <MDA sgFe 28 <MDA <MDA 58 Co 15 <MDA <MDA 60 Co 16 <MDA <MDA 65zn 32 <MDA <MDA 134Cs 16 <MDA <MDA 131Cs 18 <MDA <MDA 22sRa 300 <MDA <MDA 22aRa 58 <MDA <MDA K-40 , Ra-226 & Ra-228 are naturally occurring .

Number of Non-Routine Reported Measurements = 0

TAB LE 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 , 2017 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED : FISH UNITS: PICO - Ci/Kg , WET Location with Highest Annual Mean Namec Mean (f/

Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f/ Range Mean (f/ Range Gamma Isotopic, 4 40K 270 2973 (2/2) H-15 2973 (2/2) 2934 (2/2) 2677 - 3268 <1 mi. , ENE/E/ESE 2677 - 3268 2620 - 3247 54 Mn 16 <MDA <MDA sgFe 28 <MDA <MDA 58 Co 15 <MDA <MDA 60 Co 16 <MDA <MDA 65zn 32 <MDA <MDA 134Cs 16 <MDA <MDA 137 Cs 18 <MDA <MDA K-40 is natu rally 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, 2017 (County, State)

PATHWAY: INGESTION SAMPLES COLLECTED: BROAD LEAF VEGETATION UNITS : PICO - Ci/Kg , WET Location with Highest Annual Mean Namec Mean (f/

Type and Total Number of Lower Limit of All Indicator Distance & Direction Range Control Locations Analyses Performed Detectiona (LLD) Locations Mean (f/ Range Mean (f/ Range Gamma Isotopic, 36 7

Be 64 1067 (24/24) H-52 1132 (12/12) 1143 (12/12) 476-1856 1 mi. , S/SSE 476 - 1856 658 - 2154 40K 120 3964 (24/24) H-51 4508 (12/12) 3336 (12/12) 2496 - 5940 1 mi., N/NNW 3305 - 5940 2637 -4867 58 Co 6 <MDA <MDA 60 Co 8 <MDA <MDA 131 1 8 <MDA <MDA 134Cs 8 <MDA <MDA 137 Cs 8 <MDA 8 (2/12) 7-9 210Pb 224 (5/24) H-52 248 (2/12) 408 (2/12) 139 - 280 1 mi. , S/SSE 216-280 314-501 212Pb 21 (4/24) H-51 24 (2/12) 19 (1/12) 12-24 1 mi. , N/NNW 23-24 226Ra 189 <MDA <MDA Be-7 , K-40 , Pb-210 , Pb-212, & Ra-226 are naturally occurring.

Number of Non-Routine Reported Measurements = 0

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, 2017 (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.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 1A DEVIATIONS/ MISSING DATA Page 1 of 2 There were several instances of missing data and air sampler partial run times as follows :

A) Pathway: Direct Radiation Exposure Location: TLD : SW-10 Dates: 06/06/17 - 09/13/17 Deviation : Failure to Perform Continuous Monitoring Description of Problem : TLD was missing and lost during quarter 2 sampling by the State of Florida Bureau of Radiation Control (BRC) at the ODCM required REMP Program sampling location NNW-10. The TLD had been lost during Hurricane Irma.

Corrective Action: Replaced TLD B) Pathway: Direct Radiation Exposure Location : TLD : SSW-10 Dates: 06/06/17 - 09/13/17 Deviation: Failure to Perform Continuous Monitoring Description of Problem: TLD was missing and lost during quarter 2 sampling by the State of Florida Bureau of Radiation Control (BRC) at the ODCM required REMP Program sampling location WNW-2 . The TLD had been lost during Hurricane Irma.

Corrective Action : Replaced TLD C) Pathway: Airborne, Particulates and Radioiodines Location : H14 , 1 miles SE Dates: 9/06/17 - 9/13/17 Deviation : Failure to Perform Continuous Monitoring Description of Problem : Power was lost at the air sample station on 09/06/17 as a result of Hurricane Irma. Estimated run time for the week of 09/06/17 was 143.6 out of 173.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .

Corrective Action : Power restored

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Page 2 of 2 D) Pathway: Airborne, Particulates and Radioiodines Location : H30 , 2 Miles W Dates: 09/06/17 - 09/26/17 Deviation : Failure to Perform Continuous Monitoring Description of Problem : Power was lost at the air sample station on 09/06/17 as a result of Hurricane Irma. Estimated run time for the week of 09/06/17 was 106.2 out of 171 .3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months . Estimated run time for the week of 09/13/17 was 125.5 out of 190 hours0.0022 days 0.0528 hours 3.141534e-4 weeks 7.2295e-5 months .

Corrective Action : Power restored E) Pathway: Airborne, Particulates and Radioiodines Location : H34, Site Met Tower, 0.5 miles N Dates: 09/06/17 - 09/21 /17 Deviation : Failure to Perform Continuous Monitoring Description of Problem : Power was lost at the air sample station on 09/06/17 as a result of Hurricane Irma. Estimated run time for the week of 09/06/17 was 144.2 out of 173 hours0.002 days 0.0481 hours 2.86045e-4 weeks 6.58265e-5 months . Hazardous conditions around the base of the MET tower also caused by Hurricane Irma prevented sampling of week 09/13/17 to 09/21 /17 .

Corrective Action: Power was restored and the hazardous conditions removed.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 18 ANALYSIS WITH LLDs ABOVE THE REQUIRED DETECTION CAPABILITIES (LLDs) Listed in ODCM TABLE 4.12-1 1/1/2017 -12/31/2017 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.

2017 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 from June through August 2017 -

No additions or changes were identified as compared to the 2016 St. Lucie Annual Land Use Census Survey. No locations were identified of potential milk-producing animals (cows or goats) .

Distance to Nearest (a , b)

Sector Residence Garden (d) Milk Animal (c)

N 0 (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 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 NW 3.4/304 L L NNW 2.7/344 L L

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 TABLE 2 LAND USE CENSUS (Page 2 of 2)

NOTES

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

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

distance (miles)/ 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 Page 1 of 5 INSET DETAIL L

EXCLUSION ZONE Atl)

POPULATION ZONE INDIAN RIVER INTER~TAI. W\TERW\Y t ATLANTIC OCEAN NOTES:

1) L-Llqtid Radwasle Release Poilt I

2) Due to the scale of the lgln FPL the exdu8lon area raclkls (0.97 mies) PROPERTY and the low poplUllon zone (1 mle) LINE are shown being the same size.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ENVIRONMENTAL SAMPLE LOCATIONS (10 MILES)

Page 2 of 5

_ _ H32 VERO BEACH (CONTROL)

- ~ ~ --,-..-------------~---~-~--.....

HOS W-5 Me.r ,nhwy SSW-10 Hl 2 (PIChem/C-200/Fig. 1-2/Rev.3/pngJ I

l

ATTACHMENT A PAGE 3 OF 5 PATHWAY: DIRECT RADIATION SAMPLES COLLECTED : TLD SAMPLE COLLECTION FREQUENCY: QUARTERLY Location Direction Approximate Description Name Sector Distance (miles)

N-1 N 1 A1A, North of Blind Creek NNW-5 NNW 4.8 Frederick Doug las 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 SS E 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 4 OF 5 PATHWAY: AIRBORNE SAMPLES COLLECTED: RADIOIODINE AND PARTICULATES SAMPLE COLLECTION FREQUENCY: WEEKLY Location Direction Approximate Description Name Sector Distance (miles)

H08 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

ATTACHME NT A PAGE 5 OF 5 SAMPLES COLLECTED: SHORELINE SEDIMENT SAMPLE COLLECTIO N FREQUENCY: SEMI-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 - FOO D PRODUCTS SAMPLES COLLECTED: CRUSTACEA AND FISH SAMPLE COLLECTION FREQUENCY: SEMI-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/SS E 10-20 Near south end of Hutchinson Island

ATTACHMENT B RADIOLOG ICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE SITE 2017 First Quarter 2017 Second Quarter 2017 Third Quarter 2017 Fourth Quarter 2017

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 HEALTH RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY ST. LUCIE PLANT FIRST QUARTER 2017 BUREAU OF RADIATION CONTROL

20 17 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATIN G REPORT ST. LUC IE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling First Quarter, 2017 Number of Number of Sample Type Collection Frequency Sample Locations Samples

1. Direct Radiation Quarterly 27 54

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.1. Crustacea Semiannually 2 1 4.a.2. Fish Semiannually 2 1 4.b. Broadleaf Vegetation Monthly 3 9 Total: 213 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 -DUAL DEPLOYED TLD' s - (µR/hour)

Sample Dep loyment 08-Dec-16 Sample Deployment 08-Dec-16 Site Collection 08-Mar-17 Site Collection 08-Mar-1 7 Old New Old New N-1 3.85 +/- 0.27 3.49 +/- 0.06 SW-2 3.83 +/- 0.24 3.25 +/- 0.19 NNW-5 4.13 +/- 0.32 3.49 +/- 0.13 SW-5 4.54 +/- 0.17 3.97 +/- 0.19 NNW- 10 4.84+/-0.19 4.16 +/- 0.43 SW-10 4.13 +/- 0.60 3.66 +/- 0.11 NW-5 3.95 +/- 0.03 3.36 +/- 0.26 SSW-2 4.04 +/- 0.16 3.44 +/- 0.40 NW-10 7.13 +/- 5.65 4.57 +/- 0.18 SSW-5 4.54 +/- 0.14 4.03 +/- 0.37 WNW-2 3.91 +/- 0.29 3.43 +/- 0.22 SSW-10 4.91 +/- 0.39 4.61 +/- 0.53 WNW-5 4.14 +/- 0.48 3.49 +/- 0.32 S-5 4.53 +/- 0.45 4.11 +/- 0.16 WNW-10 3.94 +/- 0.52 3.57 +/- 0.38 S-10 3.75 +/- 0.07 3.44 +/- 0.35 W-2 3.78 +/- 0.42 3.27 +/- 0.30 S/SSE-10 3.70 +/- 0.13 3.60 +/- 0.04 W-5 4.42 +/- 0.27 3.85 +/- 0. 32 SSE-5 3.54 +/- 0.13 3.23 +/- 0.20 W-10 3.53 +/- 0.15 3.03 +/- 0.27 SSE-10 3.79 +/- 0.27 3.43 +/- 0.32 WSW-2 4.25 +/- 0.30 3.47 +/- 0.32 SE-1 3.70 +/- 0.05 3.37 +/- 0.17 WSW-5 4.07 +/- 0.14 3.38 +/- 0.28 H-32 4.13 +/- 0.08 3.58 +/- 0.17 WSW-10 3.66 +/- 0.26 2.98 +/- 0.23

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

Collection Date H08 Hl 2 H14 H30 H34 04-Jan-17 <0.02 <0.02 <0.02 <0.02 <0.02 10-Jan-17 <0.02 <0.02 <0.02 <0.02 <0.02 18-Jan-l 7 <0.02 <0.02 <0.02 <0.02 <0.02 -

24-Jan-17 <0.02 <0.02 <0.02 <0.02 <0.02 31-Jan-17 <0.02 <0.02 <0.02 <0.02 <0.02 07-Feb-l 7 <0.02 <0.02 <0.02 <0.02 <0.02 14-Feb-l 7 <0.02 <0.02 <0.02 <0.02 <0.02

~

22-Feb-17 <0.02 <0.02 <0.02 <0.02 <0.02 01-Mar-17 <0.02 <0.02 <0.02 <0.02 <0.02 08-Mar-17 <0.02 <0.02 <0.02 <0.02 <0.02 15-Mar-l 7 <0.02 <0.02 <0.02 <0.02 <0.02 -

- ~

21 -Mar-17 <0.02 <0.02 <0.02 <0.02 <0.02 28-Mar-17 <0.02 <0.02 <0.02 <0.02 <0.02

2.b.l. AIR PARTICULATES - GROSS BETA - (pCi/m 3 )

Collection Date H08 H12 H14 H30 H34 04-Jan-17 0.013 +/- 0.003 0.008 +/- 0.002 0.010 +/- 0.002 0.007 +/- 0.002 0.012 +/- 0.003 10-Jan-17 0.016 +/- 0.003 0.018 +/- 0.003 0.010 +/- 0.003 0.017 +/- 0.003 0.016 +/- 0.003 18-Jan-17 0.009 +/- 0.002 0.005 +/- 0.002 0.007 +/- 0.002 0.006 +/- 0.002 0.009 +/- 0.002 24-Jan-17 0.013 +/- 0.003 0.012 +/- 0.003 0.016 +/- 0.003 0.008 +/- 0.002 0.010 +/- 0.003 31-Jan-17 0.018 +/- 0.003 0.012 +/- 0.002 0.019 +/- 0.003 0.018 +/- 0.003 0.017 +/- 0.002 07-Feb-17 0.020 +/- 0.003 0.011 +/- 0.002 0.010 +/- 0.002 0.016 +/- 0.003 0.020 +/- 0.003 14-Feb-17 0.011 +/- 0.002 0.014 +/- 0.002 0.012 +/- 0.002 0.017 +/- 0.003 0.017 +/- 0.003 22-Feb-17 0.016 +/- 0.002 0.016 +/- 0.002 0.019 +/- 0.002 0.016 +/- 0.002 0.017 +/- 0.002 01-Mar-17 0.011 +/- 0.002 0.015 +/- 0.002 0.012 +/- 0.002 0.011 +/- 0.002 0.010 +/- 0.002 08-Mar-17 0.016 +/- 0.002 0.013 +/- 0.002 0.014 +/- 0.002 0.014 +/- 0.002 0.018 +/- 0.002 15-Mar-17 0.012 +/- 0.002 0.017 +/- 0.002 0.014 +/- 0.002 0.015 +/- 0.002 0.010 +/- 0.002 21-Mar-17 0.025 +/- 0.003 0.021 +/- 0.003 0.020 +/- 0.003 0.018 +/- 0.002 0.024 +/- 0.003 28-Mar-17 0.022 +/- 0.002 0.023 +/- 0.002 0.019 +/- 0.002 0.014 +/- 0.002 0.026 +/- 0.002 Average: 0.016 +/- 0.001 0.014 +/- 0.001 0.014 +/- 0.001 0.014 +/- 0.001 0.016 +/- 0.001 2.b.2.AIR PARTICULATES - GAMMA ANALYSIS OF OUARTERLY COMPOSITES - (pCi/m 3)

Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 H08 0.1358 +/- 0.0117 <0.0350 <0.0013 <0.0014 <0.0334 Hl2 0.1654 +/- 0.0125 <0.0247 <0.0016 <0.0011 <0.0415 Hl4 0.1828 +/- 0.0115 <0.0155 <0.0014 <0.0011 0.0164 +/- 0.0039 H30 0.1367 +/- 0.0112 <0.0313 <0.0016 <0.0014 0.0324 +/- 0.0135 H34 0.1766 +/- 0.0115 <0.0173 <0.0016 <0.0013 0.0158 +/- 0.0044

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 04-Jan-17 <- 158 382 +/- 27 <3 <3 <6 ,-

<3 <7 <5 <3 <3 <3 - <4

-:---i 10-Jan-17 < 161 1356 +/- 26 I <3 <3 <7 <3 <8 <6 I <4 <3 J <4 I <6 I I

l 8-Jan-17 < 159 384 +/- 41 I <6 <6 <13 <8 < 15 < 11 < 10 <6 <8 I <11 I 24-Jan-l 7 < 145 386 +/- 26 <4 <3 <7 <4 I <8 <5 <5 <3 <3 <7 I

I I 31 -Jan 201-+/-- 49 355 +/- 26 <3 -

<3 <6 <3 <8

<5 <3 --

<3 <3 <12 I 07-Feb-17 < 145 369 +/- 26 <3 <3 <7 <3 <6 <5 <4 <3 <3 <7 I 14-Feb-17 <147 363 +/- 26 <3 <3 <6 <4 <8 <5 <4 <3 <4 <11 I

22-Feb-17 <146 392-+/--27 <3-

<4

<3

<7

<9

- <3

<4 <7

<8

<6

--+

<3 <3 I I

<4

-r-

<11 01 -Mar- 17 < 146 372 +/- 27 I I < 18 <3 <4

<10 08-Mar- 17 < 166 352 +/- 26 <3 <4 <8 <4 <8 <6 < 11 <3 <4 I <8- 1 I

15-Mar-l 7 < 162 380 +/- 43 <6 <6 <14 <5 < 16 <11 < 12

<7 <8 <11 21 -Mar- l 7 < 162 326 +/- 26 <4 <3 <6 <3 <7 <6 <4 <3 <3 <7 H59 28-Mar-l 7 ,

18-Jan-l 7

<162

< 159 I

420 +/- 26 409 +/- 28 I

<3

<7

<3

<3 I

I

<7

<6

<4

<5

<3

<3 I

I

<3

<3- -

<7

<5

'I I

10-Feb-17 <145 I 323 +/- 40 I <6 <6 I <11 <5 I < 12 < 12 I <8 <5 I <6 I <8 09-Mar- l 7 < 166 323 +/- 25 <3 <3 <9 <3 <8 <7 < 11 <3 I <3 l <8 (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 - (pCi/h: drv wei1 ht)

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 07-Feb-17 <81 424 +/- 52 < 10 <11 <9 <9 <901 <259 88 +/- 11 < 13 243 +/- 45 H59 07-Feb- l 7 <90 253 +/- 45 < 10 <10 <9 <11 <746 <242 48 +/- 10 < 13 170 +/- 48 4.a.1. CRUSTACEA - Stone Crab - foCi/k1:1:. wet wei rht)

Sample Collection Site Date K-40 Mn-54 Co-5 8 Fe-59 Co-60 Zn-65 Cs-134 Cs-1 37 Ra-226 Ra-228 I

I Hl5 12-Jan- 17 1594 +/- 134 <22 '

<23 <50 <20 <47 <25 <24 <483 <91 H59 This sample not yet collected.

4.a.2. FISH - Mixed Soecies - (oCi/kg. wet weight)

Sample Collection Site Date K-40 Mn-54 Co-58 Fe-5 9 Co-60 Zn-65 Cs-134 Cs-137 Ra-226 Ra-228 Hl5 This sample not yet collected.

H59 09-Mar-l 7 3247 +/- 250 <23 <28 <63 <32 <66 <21 <28 <432 <118

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 18-Jan-17 954 +/ 4204 +/- 162 <15 <8 <9 274 +/- 71 < 17 <203 <37 -

r 727 +/- 62 4345 +/- 209 I

<20 <12 < 17 < 1178 23 +/- 10 <311 <70 10-Feb- l 7 1 I I 08-Mar-l 7 988 +/- 73 3478 +/- 194 <29 <12 <17 < 1095 <3 6 <328 <76 -I

~

H52 18-Jan-l 7 1290 +/- 84 2959 +/- 175 <25 <12 <- 15 < 1135 <26 <327 -

<63 10-Feb-l 7 476 +/- 54 5669 +/- 242 <18 <12 <15 < 1004 <27 <289 <80 1 08-Mar-17 1601 +/- 62 2887 +/- 121 <17 <7 <9 <341 <16 <185 <30 I H59 l 8-Jan-17 1326 +/- 53 2893 +/- 121 <12 <7 7+/-2 <321 <16 <175 <27 I I ~

10-Feb- l 7 664 +/- 36 2637 +/- 112 <10 <7 <8 < 196 <14 <158 ,__ <30 I 09-Mar-l 7 1062 +/- 69 2662 +/- 160 <26 < 13 <16 <982 <23 <303 <60 I

201 7 ANNUAL RADIOLOGICAL ENVIRONMENT AL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Figure 1 - St. Lucie Direct Radiation Gamma Exposure (via TLD) 8.0

--- Avg All Ind 7.0 Locati ons 6.0

.c It:

5.0

_.,._ Min All Ind Locati ons 2.

G) 4.0 ---*"- Max Al l In d en Locations 0

Q.

)(

w 3.0

~ c ontrol 2.0 Location 1.0 0.0

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Figure 2 - St. Lucie 2017 REMP Program Gross Beta in Air, pCi/m 3 0.060 .....-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~

0.050 I

n n

.;, n E

I I u 0.040 S:

u ! :

C 0

u

... 0.030 i \

ci:

£ Ill

'ai m

rn 0.020 rn e

(!)

0.010 0 .000 +--,--,--,.--,--,---,--,--,--,--,--,--,.......,......,..-,--,--,--,---,--,.........,---,--,--,--,--,--,--,--,.......,.--,--,--,--,--,--,--,--,.......,.--,--,--,--,--,--,--,.........,--.--,--,--,--4 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51

- * - Min All Indicator Locations

- - Avg All Indicator Locations Weekofthe Year 2017

Max Al l Indicator Locations

- - Control Location

2017 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 1 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 6.7% of the required lower limit of detection and 0.67% 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. For the 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. Results for the waterborne sediment, fish , and crustacean 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 not present in any of the 24 ODCM required samples but was present in 2 out of the 12 Control locations. The highest value at the control location was 11 .25% of the required lower limit of detection and 0.45% 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.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2

7. lnterlaboratory Comparison Program :

The State of Florida laboratory participated in MAPEP 36 and 37 . 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 6.7% of the required lower limit of detection and 0.67% 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.

The highest value for Cs-137 in broad leaf vegetation was in the control location , and 11 .25% of the required lower limit of detection and 0.45% 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.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 HEALTH RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMP ANY ST. LUCIE PLANT SECOND QUARTER 201 7 BUREAU OF RADIATION CONTROL

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling Second Quarter, 2017 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 - DUAL DEPLOYED TLD's - (µR/hour)

- S-ample-r Site

/ Deploymen;08-Mar-17 Collection 06-Jun- l 7 Sam;le Site T Deployment Mar-l 7 Collection 06-Jun-17 L -- _l Old New _l Old New _

r N-1 -+ 2.40 +/- 0.05 2.83 +/- 0.33 SW-2 2.33 +/- 0.06 2.47 +/- 0.22 f NNW-5 12.33 +/- 0.27 2.71 +/- 0.47 SW-5 12.73 +/- 0.13 2.95 +/- 0.32

_~ W-=-!_0 j 2.88 +/- ~ 08 3.11 +/- 0.40 _, S W-10 2.52 +/- 0.38 __]:_}3 +/- 0.54 ~

- NW-5 2.20 +/- 0.30 2.55 +/- 0.25 SSW-2 12.26_+/- 0.22 2.61 +/- 0.30 NW-lo l 3.16 +/- 0.29 - -3.48 +/- 0.08 1 SSW-5 2.63 +/-- 0.37 2.89 +/- 0.2~ 1

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

I WNW-2 2.34 +/- 0.22 2.58 +/- 0.12 SSW-10 3.10 +/- 0.39

--+--

3.50 +/- O} ~ J L WNW-5 2.33 +/- 0.21 2.62 +/- 0.37 S +2.76 +/- 0.20 3.18 +/- 0.09 I WNW-10 2.31+/-0.25

- -2.46+/-0.18

- --r S-10

-- 12.39 +/- 0.29 2.60 +/- 0.02

- W-2 2.1I_+/- 0+/-2_ _ 2.31 +/- 0.22 S/SSE-10 2.33 +/- 0.13 ___b? O+/- 0.3Q W-5 2.53 +/- 0.48 2.94 +/- 0.13 f SSE-5 2.26 +/- 0.07 _ 2.48 +/- 0.36_

1 1

f---W - -10 T o2 +/- 0.24 - _ 2.21 +/- 0.03 SSE-_!_0_ 2.43 ~ 0.23 2.91 +/- 0.15 j

_ "'!!SW-2_j 2.35 +/- 0.1_! 2.54 +/- 0.08 T SE-1 2.45 +/- 0.15 _ 2.6~ 0.41 H-32 2.59 +/- 0.23 2.94 +/- 0.23 1 WSW-5 2.38 +/- 0.19 2.62 +/- 0.30 I_WSW-I_O 1 2.33 +/- 0.18 2.39 ~ 0.28 ---- J 1 of 13

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

Collection Date H08 H12 H14 I H30 H34

--- -- - - ~ !--

-1 04.::_A pr-17 11-Apr-1?

_ 18-Apr-17 _

<0.0~

<0__:92 _

_ <0.0~

<0.02

<0.02 J <OJ _~

<0.02

<0.02 _

<0.02

<002 _ -

<0.02

<0.02 _

4 r-1 25 -Apr-12_ <0.02 <0.02 i <0.02 <0.02 <0.02

--i--

r

~ 03-May-1]

09-May-17 16-May-1]

<0.02

-t

+-

<0.02

<0.02 1-

<0.02

_J_

<0.02

<0.02 r- ~ <0.02

<0.02 23-May-17 1 0-May-17

<0~2

<0.02

=-l -

_:50.QL

<0.02

-i 06-Jun-17 <0.02 <0.02 <0.02

<O.OL_J_ _ ~O.:_O~

~ -

13-Jun I r <0.02 I <0.02 <0.02 <0.02 ~

j

~

r-- Jun-17 1

27-Jun-17 -r <O.~

<O.;~

<0.02

[ _ <0.02 -

<0.03

* -<0.02 T

<0.03

<0.02

-L ~~-~j

<0.0~ _

.L. ---

2 of 13

1 2.b.1. AIR PARTICULATES - GROSS BETA- (pCi/m 3) 1 Collectio-n ...,.... I I Date r - - - - - t -

HOS *-

H12 H14 H30 r H34 j 0.019 +/- 0.002 0.019 +/- 0.002 0.017 +/- 0.002 0.019 +/- 0.002 0.011 +/- 0.002 11-A r-17 l O_:Q_14 ~ 0.002 l 0.017 +/- 0.002 0.014 +/- 0.002 0.014 +/- 0.002 0.017 +/- 0.002 18-A r-17 0.019 +/- 0.002 T 0.01s +/- 0.002 Q.O_!J +/- 0.002 r 0.016 +/- 0.002 ~ 5--=- 0.002 25-Apr-17 0.014 +/- 0.002 0.014 +/- 0.002 0.013 +/- 0.002 I 0.017 +/- 0.002 l 0.020 +/- 0.002 03-May-!1__ 0.018 +/- 0.002 0.027 +/- 0.002 .~ O.O_!l +/- 0.002 _Q.01 1_+/- 0.002 0.014 +/- 0~002 I j)9-May-1 7 0.018 +/- 0.003 0.020 +/- 0.003 j 0.018 +/- 0.003 0.012 +/- 0.002 l 0.019 +/- 0.003 1 16-May-17 0.021 +/- 0.002 0.026 +/- 0.003 0.026 -+/- 0.003 0.025 +/- 0.002 0.023 +/- 0.002 I

23-Ma -17 __ T___

0.021 +/- 0.002 -

0.022 +/- 0.002 0.016 +/- 0.002 0.018 +/- -

0.002

-+--

0.023 +/- 0.002

]_0-}1~ -17 I 0.019 +/- 0.002 0.016 +/- 0.002 0.008 +/- 0.002 0.013 +/- 0.002 0.015 +/- 0.002 06-Jun-17 0.010 +/- 0.002 0.006 +/- 0.002 0.012 +/- 0.002 0.007 +/- 0.002 0.049 +/- 0.003

~ 13-Jun-1_2_ ~ 09 +/- 0,002 0.008 +/- 0.002 0.011 +/- 0.002 0.005 +/- 0.001 0.018 +/- 0.002 19-Jun-17 0.008- +/-- 0.002 0.009 +/- 0.002 10.004 +/- 0.002 0.009

+/- 0.002 0.006 +/- 0.002 27-Jun-17 0.0 10 +/- 0.002 --

0.009 +/- -0.002 0.007 +/- 0.002 0.012 +/- 0.002 0.012 +/- 0.002 r Average: 0.015 +/- 0.001 0.016 +/- 0.001 0.014 +/- 0.001 Q.014 +/- Q.QQl I 0.019 +/- 0.001

_§_ample Site

_HOS _

l Be-7 __ ~

0.1550 ~ 0.0100 _J <O.Q156 K-40 C~-134

<0.0013

+

2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF QUARTERLY COMPOSITES - (pCi/m 3 )

fs-137

<0.0011 l_ Pb-210 ~

O.Q166 +/- _Q.004_?

H1 2 0.1550 +/- 0.0100 _J _s0.0169 <0.0015 <0.0010 0.0176 +/- 0.0046 H14 0.1710 +/- 0.0125 <0.0355 I <0.0014 <0.0012_1 <0.0393 H30 ~.1;20 : 0.01~ 1<0.0371 I <0.0013 <0.0014 <0.0410- -

H34 -L .12-10 +/- 0.0114 _j <O. Q.?40 I <O~oo ~4 <0.0012- ~ o~o 3 of 13

3 .a. SURFACE WATER - (QCi/L) sample I Collection 1 I I I

Zr-95 1 I Ba-140 1 1

1 Site Date H-3 K-40 Mn-54 Co-58 Fe-59 I Co-60 Zn-65 N:95 I-131 I Cs-134 Cs-137 La-140 /

l (B)_

H15 04-A r-17 <158 314 +/- 25 <3 <3 I <8 <4 <7 <6 I

- ----+--

<6 <3 <3 <5 I I

-i---- --+-- -----;

11-Apr-17 <158 391+/-28 1 <4 <3 <4 <8 <7 <6 <3 <3 <5

~ I I I

~ -+

___.I 18-A r-17 <151 408 +/- 28 <3 <3 __<7 _____J. <4 <6 <5 <4 <3 <4 <6 1

25-A r-17 <141 I 358 +/- 41 I <7 <6 <12 I <6 <15 <11 <9 <6 <7 <11

- ; 03 -May-17 1 <144 335 +/- 26 <3 <3 I

<7 I <3 <8 I <5 <4 <4 i <5 ~

. 09-May-17

-- - --r

<145 -+ 342 +/- 26 <3 <3 <7 t

<4 <7 <6 <4 1 <3 <4 _ <7 _J t----

16-May-l 7 <148 I 395 +/- 27 1

<3 <3 <6 .____<3 - <7 <5 <4 <3 <4 <9

. - I 23 -May-17 <147 357 +/- 26 <3 <3 <8 <4 <7 <5 <4 <3 <3 <12

,- 30-May-17 07-Jun-17

<144

<144 362 +/- 27 <3

<3

<4

<6

<3

<4

<7

<8

<6

<7

<3

<6

<3

,-- <4

<3

<12

<5 I 395 +/- 27 I I I I 13-Jun-17 . <145 I 399 +/- 28 I <6_j _54

<3 <4 <8 <6 <3 <3 <11 -1 t <3_

1<145 k

H59 19-Jun-11 27-Jun-17 18-A r-17 ---

<143

<140 1351+/-25 !

t. 394 +/- 27 379 +/- 27

<4

<3

~

<8

<7

+ <3

<4

<3

<7

<8

<7

<6

~ ;t

<4

<3

--1

<3 I _:(4

<3

<7

<11

<7 09-May-17

-- - t--

<148 434 +/- 28 <3 <3 ----! <6 <3 <7

---+

<5 <4 l--

<3 <3 r

+

<12 I 07-Jun- l 7 1

<147 I 431 +/- 44 1

<7 <6 <11 <8 <14 <11 I <10 <5 <6 I I

<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 ofBa-140 or based on ingrowth ofLa-140, whichever method yields the greater sensitivity for a given sample.

4 of 13

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

I I

sample Collection I Site Date Be-7 K-40 L co-58 Co-60 Cs-134 Cs-137 Pb-210 I Ra-226 ~ 23J

~ - - - ' - -_ _T_hese sam les were previously collected_. _ _ - - ___ J 4.a.1. CRUSTACEA - Blue Crab - (pCi/kg, wet weight) 1

~

Sample Site I

Collection Date K-40 Mn-54 I Co-58 Fe-59 Co-60 Zn-65 Cs-134 r:_137 1 Ra-: 2~ r Ra-228 l H15 H59 07-Jun-17 reviousl collected.

1406 +/- 121 I <21 I

<20 <39 __L <18 I <42 L <22 [ <22 <287 < 103 4.a.2. FISH - Mixed Species - (pCi/kg, wet weight)

Collection --r :T l ~ -T- -T:J:-1

~

K-40 I Mn-54 Co-58 I Fe-59 Co-60 Zn-65 Cs-134 1 Cs-137 Ra-226 Ra-228 2677 +/- 220 <27 <2~ -<55 j - <34 <59 I <24---t <~ I <486- -:122-

--1 . . - - ,

~ - ~ r_e_vi_ously collected. __

5 of 13

4.b. BROADLEAF VEGETATION - Brazilian Pe1mer - (QCi/kg, wet weight)

Sample Collection Site _J_ Date 1 Be-7 K~ _ ~ Cs-134 Cs-137 Pb-210 Pb-212 Ra-226 h -228 H51 18-A r-17 832-+/--65 5820 +/- 257 <16 <15 <19 <1180 <33 <350 <75 r -l r

09-May-17 1058 +/- 48 4614 +/- 169 <9 <8 <9 139 +/- 66 <16 < 178 <34 _j I

~ I 1 07-Jun-l 7 ~

1154 +/- 73 3743 +/- 191 <16 I-

<14 <15

<1072 <28 <309 <71 I

1

~

2496 +/- 113 <9 <7 <9 <363 12 H52 18-A r-17 1258 +/- 53 -+/-- 3 < 184 <34 H59 1

09-May-17

- , - r: -

07-Jun-17

_1 8-1pr-17 646 +/- 52 891 +/- 67 3911 +/- 189 3767 +/- 191 658+/-38 1 4867 +/- 179 I

<15

<22

<10

+--

1

<12

<8 rt

<13

<1_5

<9

<876

<987

<342

<24

<26

<18

<289

<290

< 180

<58

<59

<33

--+ 09-May-17 J 25 +/- 58 3986 +/- 206 <19 <14 I j.

<17 <1021 <29 <336 t <67 l 1 07-Jun-17 J 1040 +/- 67 , 2933 +/- 162 <21 <12 L <17 < 1031 <25 <285 <59 6 of 13

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 HEALTH RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMP ANY ST. LUCIE PLANT THIRD QUARTER2017 BUREAU OF RADIATION CONTROL

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling Third Quarter, 2017 Number of Samnle Type Collection Freouencv Locations Samoled Samples

1. Direct Radiation Quarterly 27 25

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.1 . Crustacea Semiannually 2 0 4.a.2. Fish Semiannually 2 1 4.b. BroadleafVegetation Monthly 3 9 Total: 183 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 n eploym;,;;-06-Jun- l 7 - , Sample1 -geployment 06-Jun-17 --

Site ollection 13-Sep-17 I Site Collection 13-Sep-17 Old New I I Old New -

N-1 2.53 +/- 0.14 --;~55 +/- 0.22 F SW-2 2.52 +/- 0.33 2.60 +/- 0.17 NNW-5 2.90 +/- 0.16 2.74 +/- 0.25 SW-5 2.98 +/- 0.12 3.17 +/- 0.4~

NNW-10 3.20 +/- 0.18 I SW-10 I

- - - 3.35 +/- 0.40 - - ---*- - -

_ (A) - -

NW-5 2.63 +/- 0.15 2.52 +/- 0.04 SSW-2 2.45+/-0.16 2.58 +/- 0.09 NW-10 3.61 +/- 0.33 3.48 +/- 0.73 SSW-5 3.15 +/- 0.28 3.05 +/- 0.18 WNW-2 2.48+/-0.15 2.68 +/- 0.15 SSW-10 (B) -

WNW-5 2.74 +/- 0.34 - 2.65 +/- 0.08 S-5 2.92 +/- 0.33 2.88 +/--0.14 WNW-10 2.53 +/- 0.13 2.46 +/- 0.08 S-10 2.71 +/- 0.30 2.59 +/- 0.24 W-2 2.59 +/- 0.08 2.56 +/- 0.19 S/SSE-10 2.66 +/- 0.25 2.59 +/- 0.25 W-5 2.93 +/- 0.24 - 2.85+/-0.15 SSE-5 2.57 +/- 0.21 2.43 +/- 0.17

~

W-10 2.28+/-0.18 2.20 +/- 0.22 SSE-10 2.71 +/- 0.43 2.68 +/- 0.15 I

WSW-2 2.77 +/- 0.09 2.65 +/- 0.32 SE-1 2.52 +/- 0.19 2.38 +/- 0.20 I WSW-5 2.71 +/- 0.22 2.67 +/- 0.11 H-32 12.80 +/- 0.20 2.88 +/- o.31 I L wsw-10 2.54 +/- 0.05 2.37 +/- 0.16 I -1 (A)Both TLD's lost due to Hurricane Irma.

(B) Both TLD's lost due to Hurricane Irma.

1 of 14

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

- -T-r Collection Date HOS H12 H14 H30 H34 05-Jul-17 <0.02 <0.02 <0.02 r <0.02 <0.02 ll-Jul-17 18-Jul-17

<0.03

<0.02

<0.03

<0.02 I <0.03

<0.02 1

- -<0.02

<0.02 24-Jul-l 7 <0.02 <0.02 <0.02 <0.02 <0.02 01-Aug-17 <0.02 <0.02 <0.02 <0.02 <0.02 r

08-Aug-17 <0.02 <0.02 <0.02 +-

<0.02 <0.02 15-Aug-17 <0.02 <0.02 <0.02 +-

<0.02 <0.02 1 22-Aug-17 <0.02 <0.02 <0.02 <0.02 <0.02 i

29-Aug-17

- ~-17 13-Sep-17

<0.03

<0.02

-+---

<0.03

<0.02

<0.03

<0.03(A) r <0.03

<0.03

<0.03(B)

<0.03

<0.03(C)

I-21-Sep-17 l <0.01 ~ ~OJU_ <0.01 <0.02(D) r_ (E 26-Sep-17 <0.03 <0.03 <0.03 <0.03 I L---

<0.01 (A) Power outage due to Hurricane Irma. Estimated run time 143.6 out of 173 .3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .

(B) Power outage due to Hurricane Irma. Estimated run time 106.2 out of 171.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .

(C) Power outage due to Hurricane Irma. Estimated run time 144.2 out of 173 hours0.002 days 0.0481 hours 2.86045e-4 weeks 6.58265e-5 months .

(D) Estimated run time 125.5 out of 190 hours0.0022 days 0.0528 hours 3.141534e-4 weeks 7.2295e-5 months .

(E) Unable to collect an air sample due to hazardous conditions from work being done on the met-tower.

2 of 14

2.b.l. AIR PARTICULATES - GROSS BETA- (pCi/m 3 )

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

Collection Date H08 H12 I H14 H30 H34 t- - I 05-Jul-1 7 0.009 +/- 0.002 0.011 +/- 0.002 J_Q.009 +/- 0.002 0.008 +/- 0.002 0.008 +/- -0.001 I- -

ll-Jul-1 7

-0.007 +/- 0.002 0.012 +/- 0.002 0.008 +/- 0.002

-- 0.008 +/- 0.002 0.009 +/- 0.002 I--

18-Jul-1 7 0.008 +/- 0.002 0.010 +/- 0.002 0.005 +/- 0.002 0.008 +/- 0.002 0.008 +/- 0.002 j Jul-17 0.009 +/- 0.002 0.011 +/- 0.002- - 0.013

+/- 0.002 0.011 +/- 0.002 0.008 +/- 0.002 I Aug-17 0.011 +/- 0.002 0.010 +/- 0.002 0.012 +/- 0.002 0.008 +/- 0.002 0.013 +/- 0.002 08-Aug-17 0.014 +/- 0.002 0.017 +/- 0.002+ 0.021 +/- 0.002 0.015 +/- 0.002 0.013 +/- 0.002 I 15-Aug-17 0.007 +/- 0.002 0.009 +/- 0.002 0.007 +/- 0.002 0.009 +/- 0.002 0.005 +/- 0.002 I

22-Aug-17 0.016 +/- 0.002 0.014 +/- 0.002 0.012 +/- 0.002 0.011 +/- 0.002 0.009 +/- 0.002 I I

29-Aug-17 0.007 +/- 0.002 0.011 +/- 0.002 0.007 +/- 0.002 0.010 +/- 0.002 0.004 +/- 0.002 06-Sep-l 7 0.010 +/- 0.002 0.013 +/- 0.002 II 0.010 +/- 0.002 0.008 +/- 0.002 0.012 +/- 0.002 I

_ 1_3-Sep-17 0.004 +/- 0.002 0.004 +/- 0.001 0.005 +/- 0.002(A) 0.013 +/- 0.003(B),0.012 +/- 0.002(C) 1 I

1 21-Sep-17 0.016 +/- 0.002 0.021 +/- 0.002 [ 0.018 +/- 0.002 0.021 +/- 0.003(D) (E) ----1 26-Sep-17 0.014 +/- 0.002 0.014 +/- 0.003 I 0.011 +/- 0.002 0.010 +/- 0.002 0.013 +/- 0.001 I I Average: 0.010 +/- 0.001 I 0.012 +/- 0.001 0.011 +/- 0.001 0.011 +/- 0.001 I 0.010 +/- 0.001 (A) Power outage due to Hurricane Irma. Estimated run time 143.6 out of 173 .3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .

(B) Power outage due to Hurricane Irma. Estimated run time 106.2 out of 171.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months .

(C) Power outage due to Hurricane Irma. Estimated run time 144.2 out of 173 hours0.002 days 0.0481 hours 2.86045e-4 weeks 6.58265e-5 months .

(D) Estimated run time 125.5 out of 190 hours0.0022 days 0.0528 hours 3.141534e-4 weeks 7.2295e-5 months .

(E) Unable to collect an air sample due to hazardous conditions from work being done on the met-tower.

2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF OUARTERLY COMPOSITES - (pCi/m 3)

Sample Site Be-7 K-40 Cs-134 Cs-137 Pb-210 H08 0.0901+/-0. 0072 <0.0148 <0.0012 <0.0010 <0.0177 H12 0.0696 +/- 0.0064 1 <0.0118 -<0.0011

<0.0010 0.0095 +/- 0.0032 H14 I 0.0792 +/- 0.0083 <0.0241__ <0.0015 I <o.oou_ <0.031~

H30 0.0772 +/- 0.0072 I <0.0156 <0.001 +/-_ _J _<0.0012 I <0.0113 H34 I 0.0115 -: o.o~z_; <0.0262 <0.0014 I <0.0012 I <0.0330 3 of 14

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

S-am-pl~ l-le-ct-io- n~I- 1----i- T T I I Zr-95 1 I J

Ba-140 I Site I Date H-1 I K:.4.Q IMn-5_1 1 .Co-58 j Fe-59 Co-60 Zn-65 Nb-95 I-131 Cs-134 1 Cs-137 I La-140 (B)

H15

--l-L05-Jul-17

<15 1- - 367 +/- 26 r <3 <3 <7 <4 I <7 (AJ

<6 J <4 1 <3 I <3 <12

--+----

11-Jul-17 <151 I-- ----l 376 +/- 27 <3 <4 <6 <4 <8 <6 <3 ~ <4 <12 18-Jul-17

.--- <155 309 +/- 41 <7 <7 <15 <6 <11----+ <10 <21 <5-t-

<7 <12 24-Jul-17 <155 357 +/- 26i <3 ~ <7 <3 1 <7 __J <7 L~!_l <3 L <4 <6

~ Aug-17 <154 1 382+/-24 <3 <3 <7 1

<4 L <6 I <5 <6 <3 <4 <5 lo8-A~g-17 ~ 5L l 341 +/-26 I <3 <-;-1 <11 1 <4 I <;-1 <6 1_ <_4_=1= =<=3=-+l <4 <8 15-Aug-17 <154 328+/-41 <5 <7 <13 <7 <14 <12 <9 f <5 <5 <10

~ Aug-17 <155-----'- 423 +/- 28 L <3

<3 <6 <3 I- <~

---i

<5__, __g_ I <3

<3 <12

___ ~ Aug-17 .!.-<155 L422 +/- 28--+- <3 <3 .l

<7 <3 1 ~ <6 1 <4 1 <3 <4 <10 r

+

06-Sep-17 <155 354+/-45 <5 <7 : <14 <6 <15 <11 <23 <5 <6 <17 14-Se ~~ <155 I <173 1

<6 ~ <15 G C 1W <1-1 f <17 _<5_11--- <6 <10

+

-t--1 21 -SeIJ-17 <151 i 286 +/-3 7 + <6 <6 t _<11 <11 <11 t <5 <5 <11 I

26-se -17

<151 338 +/- 26 <3 <3 <8 <3 <7 <6 <5 <3 1 <3 <5 H59 l 1-Jul-17 <151 .._

409- +/- 28 <3 -1 I <3 <7 <3 I

~

<7 <5 <4 <3 . <4 <11 17-Al!.g-17 <152 368 +/- 26 <3 <4 <7 <3 <8 <6 <5 <3 <3 <5 t-

___Lll-s~-17 I <152 1 31~ 4o j_ <6 l <7 I <13 1

<7 l <15

- - -<11 1 <11 ' <5 i <7 <11 (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.

4 of 14

3.b. SHORELINE SEDIMENT - (pCi/kg, dry weight) s:~~le--+ I C~o~:~~on Be-7 _µ< -40 I Co-58 -C-o--6-0~I-C - s--1-3_4_1_C_s_-1_3_7 L ,:210~ ~a-~26 L Th-232 1 U-235~ U-238 -~

t* HlS 17-Aug-17 <65 J <194 I <13 <11 <10 _ <11 I <896 j 269 +/- 90+ <67 +-fl-+/-6___.i._ 224 +/- 38 I H59 17-Aug-17 <70 <103 <7 <6 <I <7_______ <168 103 +/- 48 <3_5__ j 7+/-3 77 +/- 17_____,

4.a.1. CRUSTACEA - (pCi/kg, wet weight)

,- - ------ ----r -T-Sample Collection I l Site._ 1,--_=D=at=e'---+----= K=-4==0=---+-= M==n==-5==4=-+-==

C==o-=5===8......_=F==

e-==5==-

9 ...i..--=

C==o==

-6==0'-+-=Z=n=-6==5=-+--=C==s=-1==3=4-+--=C==s==

-1==3=7-+---=R=a=-2=2==6'--;--=R=a=

-2=2==-

8 _..

H15 01 -Jul-17 l3 33 +/- 181 I <31 <87 <403 <27 <87 <26 <28 <487 I <117 H59 ~__T _his sagple not yet collected.

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

T Sample ICollectio T I I~ r I -1 --,

1 Site I n K-40 I Mn-54 Co-58 Fe-59 Co-60 Cs-134 I Cs-137 1 Ra-226 Ra-228 j_ Dat~ ---+ ---.,---- ~

H15 ;Ol -Jul-1711333 +/-_ 18_1~ _ <_31 <87 <403 I <27 <87 <26 ~ <28 i _<487i <117 H59 This sam le not yet collected.

5 of 14

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

I I I I citeSample H51 I Collection Date 11 -Jul-17 Be-7 707 +/- 60 K-40 4245 +/- 217 I-131

<15 Cs-134

<14 Cs-137

<20 Pb-210

<1114 I Pb-212 24 +/- 9 Ra-226

<324 Ra-228

<78 I!

I I <12 I

I 17-Aug-17 964 +/- 44 5363+/-187 <8 <9 <335 <1 6 I <194 <39

'I I

I 21 -Sep-l 7 1056 +/- 75 3793 +/- 203 <2 1 I <13 <15 <1094 II <3 4 I <334 <77

-f- -

I I I I I I

t _ll52 11 -Jul-17 I 735+/- 55 J 3082 +/- 168 <11 <12 <15 <924 I 24 +/- 9 <280 <65 I I I

- 17-Aug-17 II 1217+/-52 3349 +/- 135 <14 -

<8 <9 216 +/- 73 I <1 6 ~ <36 I I I 21-Sep-17 I 1020 +/- 44 3720 +/- 141 <12 <8 <10 <3 39 <1 6 I <183 I~

H59 I 11-Jul-17 I 842 +/- 54 2762 +/- 146 <11 ->--

<10 9+/-4 <860 19 +/ ~<253 I <53 i I

I I 17-Aug-l 7 908 +/- 63 3288 +/- 173 <21 <12 <16 <962 <26 I <289 I <62 I I I 21 -Sep-17 1578 +/- 88 <747 <23 <15 <18 <1304 <3 1 <356 <72 6 of 14

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 HEALTH RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMP ANY ST. LUCIE SITE FOURTH QUARTER2017 BUREAU OF RADIATION CONTROL

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OP ERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ST. LUCIE SITE Offsite Dose Calculation Manual Sampling Fourth Quarter, 2017 Number of Samole Tvoe Collection Freauencv Locations Sam12led Sam12les

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.1. Crustacea Semiannually 2 1 4.a.2. Fish Semiannually 2 2 4.b. BroadleafVegetation Monthly 3 9 Total: 185 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 T Deployment 13-Sep-17 r Samp~ eployment 13-Se;-u -~

Site J Collection 04-Dec-17 Site J Collection 04-Dec-17

--+ -

0 ld- New / Old New N-1 _J .85 +/- 0.23 3.49 +/- 0.20 SW-2 3.99 +/- 0.35 3.25 +/- 0.20

~ -- -----

NNW-5 +/- 0._!2 _ _l&! ~ OlQJ_ SW-5 4.49 +/- 0.34 4.17 +/- 0.22 I

- - - 4 4.Q_9 1:!NW-10 r .59 +/- 0.42 _ 4.15 +/- 0.22 SW-10 4.00 +/- 0.30 3.55 +/- 0.29

- - ~

NW-5 3.93 +/- 0.21 - ~ SSW-2

- 3.51 +/- 0.01 - - 3.87 +/- 0.38

- - - 3.45 +/- 0.43 1 NW-10 5.16 +/- 0.33 4.29 +/- 0.27 SSW-5 4.40 +/- 0.37 4.03 +/- 0.13 WNW-2 3.82 +/- 0.42 3.45 +/- 0.19 SSW-10 , 3.74+/-0.21__ 3.51+/-0.22

---~ -- - - - - - - - - 1 WNW-5 3.92 +/- 0.01 3.43 +/- 0.11 S-5 4.06 +/- 0.52 3.57 +/- 0.36 WNW-10 3.88 +/- 0.15 3.34 +/- 0.43 S-10 3.80 +/- 0.50 3.3 0 +/- 0.27 W-2 ~ 0 +/- 0.09 3.34 +/- 0.32 S/SSE-10 3.92 +/- 0.33 3.27 +/- 0.24 W-5 4.34 +/- 0.06 3.83 +/- 0.52 SSE-5 3.71 +/- 0.25 3.30+/- 0.3~

W-10 G11 +/-_O.Q_6 -3.04-+/- 0.42 SSE-10 3.98 +/- 0.15 3.40 +/- 0.10 WSW-2 WSW-5 13.94 +/- 0.22 3.97 +/- 0.21 3.58 +/- 0.14 3.45 +/- 0.23 SE-1 H-32 3.95 +/- 0.11 4.39 +/- 0.24 3.22 +/- 0.32 3.83 +/- 0.28 WSW-10 3.64 +/- 0.17

_._____ -- 3.28

+/- 0.33 1 of 14

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

-i - --- - --

Collection Date H08 H12 H14 H30 H34 l --

03-0ct-17 <0.01 <0.01 <0.01 <0.01 <0.01 10-0ct-17

<0.02 <0.02

-1 <0.02 <0.02 <0.02

- t -

I 17-0ct-17 <0.02 <0.02 <0.02 <0.02 <0.02 24-0ct-17

<0.02 <0.02 <0.02 <0.02 <0.02 31-0ct- 17 <0.03 <0.03 -

<0.03

<0.03 <0.03 06-Nov-17 <0.04

<0.04 <0.04 <0.04 - <0.04 15-Nov-17 <0.01 <0.01 <0.01 <0.01 <0.01- --

20-Nov-17 <0.02 <0.02 <0.02 <0.02 <0.02 28-Nov-l 7 <0.02 <0.02 <0.02 <0.02 <0.02 04-Dec-17 <0.03 <0.03 <0.03 <0.03 <0.03 12-Dec-17 <0.01- <0.02 <0.02 <0.02 <0.02 -

~

I l -

19-Dec-17 27-Dec-17 1

<0.03 <0.03

<0.02

<0.03

<0.02_ +

L

<0.03

<0.02

<0.03

<0.02 2 of 14

2.b.1. AIR PARTICULATES - GROSS BETA - (pCi/m 3 )

jc~~:ion H08-03-0ct-l 7 - - 0.015 +/- 0.002 r H~

l 0.012 +/- 0.002 l- m4 ~ ~~_H_3_0__--+~ -H_3_4_

0.014 +/- 0.002 ~ - 0.011 +/-_ 0._00_2_+-_

1_

o_.0_15_ +/-_.Q.0_0_2 10-oct-11 0.009 +/- 0.002 0.012 +/- 0.002 0.010 +/- 0.002 I 0.008 +/- 0.002

!-------+-------,

0.011 +/- 0.002 11-oc1-11 I 0.009 +/- 0.002 0.009 +/- 0.002 0.005 +/- 0.001 0.008 +/- 0.002 0.010 +/- 0.002 I 24-0ct-17 0.017 +/- 0.002 t--0_.0_1_6_+/-_0_.0_0_2 --+- 0.0_19_+/-_0_.0_02_ _ 0.0_ 11 +/-_0_.00~ _ _9.014 +/- 0.002 j 31-oct-1 1 0.012 +/- 0.002 0.011 +/- 0.002 0.016 +/- 0.002 0.012 +/- 0.002 0.014 +/- 0.002 I

+-------1-----

06 -Nov - l 7 0.019 +/- 0.002 0.011_ +/-_ 0_.00_2 o._01_8_+/-_ 0_._00_2--+-_o_.0_1_2_+/-__0_.0_0_2 0.014 +/- 0.002 j 15-Nov-17 0.006 +/- 0.001 0.007 +/- 0.001 0.007 +/- 0.001 0.007 +/- 0.001 0.007 +/- 0.001

- ---------+------

l 20-Nov~ I 0.023 +/- 0.003 1~ 27 ~~; , 0.015 +/- - 0.003 0.021 +/- 0.003

--+-------+-------ii 0.021 +/- 0.003 I 28-Nov-17 0.016 +/- 0.002 0.017 +/- 0.002 0.018 +/- 0.002

1--

0.016 +/- 0.002 0.013 +/- 0.002 I

04-Dec-17 0.020 +/- 0.002 0.025 +/- 0.003

!------+------+----~-----,1--------------1 0.024 +/- 0.002 0.014 +/- 0.002 0.019 +/- 0.002 12-Dec-17 0.014 +/- 0.002 0.015 +/- 0.002 1 0.017 +/- 0.002 0.011 +/- 0.002 0.010 +/- 0.002 19-Dec-17 0.025 +/- 0.003 0.025 +/- 0.002 0.031 +/- 0.003 0.024 +/- 0.002 0.023 +/- 0.002 I 27-Dec-17 I 0.021 +/- ~~~ 0.02~ +/- 0.00~ 0.019 +/- _0._00_2___0_.0_17 +/- 0.002 0.018 +/- 0.002 J Average: 1 0.016 +/- 0.001 1 0.017 +/- 0.001 0.017 +/- 0.001 _0_.0_1_3_+/-_0_.0_0_1 ~ 0_._01_5_+/-_0_.0_0_1~1 2.b.2. AIR PARTICULATES - GAMMA ANALYSIS OF OUARTERLY COMPOSITES - (pCi/m3 )

Sample Site H08 Be-7 -

0.1510 +/- 0.0100 K-40

<0.0152

- Cs-134

<0.0015 Cs-137

<0.0011

~ j 0.0130 +/- 0.0037 H12 0.1600 +/- 0.0102 <0.0178 <0.0013 <0.0008 0.0204 +/- 0.0042 H14 0.1580 +/- 0.0121

<0.0223

<0.0014 --*

<0.0012 - <0.0376 H30 0.1290 +/- 0.0094 -

<0.0162 *- --

<0.0014 <0.0011 0.0169 +/- 0.0045 1

H34 0.1780- +/- 0.0141

<0.0284

<0.0018 <0.0016

-- <0.0460

- ~

3 of 14

3.a. SURFACE WATER - (pCi/L) 1 I Sample Collection Zr-95 1 1 Ba-140 I Site I Date K-40 I Mn-54 1Co-58 Fe-59 j Co-60 Zn-65 Nb-95 I-131 I I Cs-134 I Cs-137 I La-140 I

+-- _ __,_______ -----+ - - - A) (B) 1 H15 03-0ct-17 , <154 291 +/- 24 J <3 I <3_J <7 <3 I <7 <5 <4 I3 T<4 <10 10-0ct-17 <150

-+

381 +/- 27 <2 <3 <7 <4 <8 -r--<6 <4 <3 <3 1 <8 17-0ct-17

+----*--

<158 323 +/- 25 <3 <3

+

<7 <3 <6 ~ 5 <4 <3 t <3 <5 24-0ct-17 <154 386 +/- 26 <4 <3 <8 <4 +-<8 <6 <4 <3 j__ <3 <5 31 -0ct-17 <154 320+/-25 f <4 I <3- , <7 ) <4 I <8 <6 I <4 <3 <3 <10 fo:6-N ov-17 -+--_<_15_4_+-3_0_5_+/-_2_5 ~ <3 j_ <3 I <7 <4 l <6 <6 1 <3--i <3 <3 <11 15- ov-17 <154 319+/-39 <7 <6 <13 <7 j- <12---+_< 10 <10 <5 <6 <9

- ----! --+ +- -+

l I

I 20-Nov-17 <154 429 +/- 28 <3 <3 <7 <4 I 1

<7

-+-

<5 <4 <3 <3 <12 28-Nov-17 <151 f---

384+/-26 i

<3 <3 <7 +-

<4 i--::1- <5 ..J

<4 ~ -

<3 +-

<3 <10 l

1 05-Dec-17 <151 416 +/- 29 <4 <4 <9 <5 <10 <7 <5 <4 <4 <15 I_ t <;J 1 ~ <8 _l

+

V2-D-ec-- l 7 [ <15~

19-Dec-17 <150 437 +/- 28 362 +/- 28

<5

<5 <4

<10

<9

<5

<10

<10 <8

<5

<9 f

I

<4

<5

<5 1 <10

<8 27-Dec-17 I <150 457 +/- 29 l <4 <4

+

- <8 <5 ' <10 ~

- ---l-----

7 <5 - I <5 -+---

<5 <15 H59 10-0ct-17 <150 349 +/- 43 <6 <5 <13 <7 <13 <10 <10 <6 <7 <10 t

1 20-Nov-17 <151 355+/-26 <3 <3 <7 <3 <7 t---<6 -+- <4 <4 <4 <8

+

05-Dec-17 <151 _J 361 +/- 28 L <4 <4 <9 <5 <10 ~ <7 I <5 <5 l <4 <13 (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.

4 of 14

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

I ~:~le i Co~:~:on Bet lK-40 I Co-58 Co-60 I Cs-134 1 Cs-137 1 PJ,-210 I Ra-226 1 Th: _ U-235 1 U-238 I H15 This sam le was collected.

collected.

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

I 1 Sample

~ _ Site Collection

~ K-40 I

Mn-54 T. I Co-58 Lle-59 ~ Zn-=

I 65=--L~C=s=-1~3i l _C_s----,,1=

3 7_---'---=

R==

a-=2='

T 2i l la-228 i i

H15 This sam le was previously collected. I H~ ----'- 03 -0ct-17 1142 +/- -

108 I

- ~ -<23 I

- ~ -<28 - _<_7_4~ _<20 -L- <_5_6_~_<_2_3 _~_<_2_6_~_<_4_6_2 L <98 --1 4 .a ..

2 FISH

- Mixed Species - (pCi/kg, wet weight)

I I

r-Sampie ~

site T

ollection Date K-40~ .Mn-54 i Co-58 Fe -Co-60~ ~ Zn-65~

I s-l 34 Cs-137 Ra-226 I

Ra-228 --,

I

~:

I I

15 I 28 -Nov-17 3268 +/- 247 <26 1 <26 <47 <29 <59 <25 I <27 <472 <113 -

! I I

59 I 26-Dec-l 7 2620 +/- 156 <21 < 19 <46 I <25 <52 <25 <23 I <392 I <92 5 of 14

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

Sample f- Site i Collectio:-r-Date Be-7~ -+-~ K=-=40~ --+--~ I-131=_+

- i -r

~ 1 Cs-1 37 - ~ ~

I b-212 r - Ra-226 r i

Ra-228 HSI 10-0ct-17 1292 +/- 55 13305+/-137 <11 <8 I <10 ~

I 213 +/- 79 <17 <207 <36 20-Nov-17 1290 +/- 55 5940 +/- 209 I------

<9 <9 - L <10 <390 <20 <190 <40

~ I 05-Dec-1¥ I5244 +/- 174 ~ <33 I

<12 <10 <256 <18 <197 <45 8 +/- 49 r--

I l-I H52 __, 10-0ct-17 746 +/- 6~ 610+/- 158 ~ <17 --

<15 ~

<16 <1079 <26 ~

<333 <71-

+--

20_-Nov-12-+ 1850 +/- 63 2750 +/- 114 II <9 -

<7 <8 280 +/- 75 r <15 <181 <32

-~~

1 --+

I I

____, 05 -Dec-17 1 1856 +/- 69 13849+/-147 1 <40 <12 <12 <21 <240 <49 I

H59 -+--

10-0ct-17 I 982 +/- 45 3247+/- 130 <10 <7 <9 <319 --+

<15 <172 <31

~

4290 +/- 156

--+---------!--

<9 <7 <6 314 +/- 77 <17 <185 3126 +/- 121 <33 <10 <10 501 +/- 63 <19 <210 0 6 of 14

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ATTACHMENT C RESULTS FROM THE 2017 INTERLABORATORY COMPARISON PROGRAM CONDUCTED BY DEPARTMENT OF ENERGY

2017 ANNU AL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 DOE-MAPEP 36 RES ULTS Radionuclide Result Ref. Flag Acceptance Value (Evaluation) Range Matrix: RdF Air Filter (Bq/filter)

MN54 0.049 0 A False Positive Test (within acceptance range)

C057 1.613 1.70 A 1.19-2.21 C060 0.809 0.78 A 0.55-1 .01 ZN65 1.402 1.29 A 0.90-1.68 CS134 1.359 1.42 A 0.99-1 .85 CS137 0.709 0.685 A 0.480-0 .891 Matrix: GrF Air Filter (pCi/filter)

Gross Beta* 54.74 61.8 A 39.1-90 .1 Matrix: MaS Soi l (Bq/kg)

K40 550 607 A 425- 789 MN54 952.57 967 A 677-1257 C057 0.67 0 A False Positive Test (within acceptance range)

C060 849.43 891 A 624-1158 ZN65 1.89 0 A False Positive Test (within acceptance range)

CS134 1456.23 1550 A 1085-2015 CS137 610 .29 611 A 428-794 Matrix: MaW Water (Bq/L)

H3 267.9 249 A 174-324 MN54 15.705 14.9 A 10.4-19.4 C057 27 .175 28 .5 A 20.0-37 .1 C060 12.64 12.3 A 8.6-16.0 ZN65 0.111 0 A False Positive Test (within acceptance range)

CS134 -0.108 0 A False Positive Test (within acceptance range)

CS137 11 .910 11 .1 A 7.8-14.4 SR90 9.12 10.1 A 7.1-13.1 Matrix: RdV Vegetation (Bq/sample)

MN54 3.158 3.28 A 2.30-4.26 C057 0.013 0 A False Positive Test (within acceptance range)

C060 8.047 8.75 A 6.13-11 .38 ZN65 5.184 5.39 A 3.77-7.01 CS134 6.257 6.95 A 4.87-9.04 CS137 4.746 4.60 A 3.22 - 5.98

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 Evaluation : A = Acceptable, W = Acceptable with Warning , N = Not Acceptable

Sample from Environmental Resource Associates (ERA) Multi-Media Radiochemistry Proficiency Testing (MRAD-27)

In MAPEP 36 , 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.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 DOE-MAPEP 37 RESULTS Radionuclide Result Ref. Flag Acceptance Value (Evaluation) Range Matrix: RdF Air Filter (Sq/filter)

MN54 1.367 1.30 A 0.91 - 1.69 C057 0.012 0 A False Positive Test (within acceptance range)

C060 0.644 0.68 A 0.48-0.88 ZN65 1.185 1.08 A 0.76-1.40 CS134 0.969 1.00 A 0.70-1 .30 CS137 0.853 0.82 A 0.57-1.07 Matrix: Mas Soil (Sq/kg)

K40 554 592 A 414 - 770 MN54 794.75 825 A 578 - 1073 C057 1250 1458 A 1021-1895 C060 0.08 0 A False Positive Test (within acceptance range)

ZN65 558.5 559 A 391 - 727 CS134 409.8 448 A 314-582 CS137 688 722 A 505 - 939 Matrix: Maw Water (Sq/L)

H3 272 .38 258 A 181 - 335 MN54 16.054 14.9 A 10.4-19.4 C057 11.546 12.1 A 8.5 -1 5.7 C060 10.962 10.7 A 7.5 - 13.9 ZN65 16.585 15.5 A 10.9 - 20.2 CS134 11 .257 11 .5 A 8.1 - 15.0 CS137 17.408 16.3 A 11.4-21 .2 Matrix: RdV Vegetation (Sq/sample)

MN54 2.734 2.62 A 1.83 - 3.41 C057 2.644 2.8 A 2.0 - 3.6 C060 1.912 2.07 A 1.45-2.69 ZN65 5.258 5.37 A 3.76 - 6.98 CS134 2.156 2.32 A 1.62 - 3.02 CS137 0.018 0 A False Positive Test (within acceptance range)

Evaluation : A= Acceptable, W = Acceptable with Warning , N = Not Acceptable In MAPEP 37, the results for gamma on air fi lters, water, and vegetation matrices for those nuclides associated with nuclear power plant operation and using analytical methods used in the REMP are acceptable.

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 ATIACHMENT D Industry Initiative Ground Water Protection Program Tritium in Ground Water Monitoring 2017

2017 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 A1A; 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 A 1A and East of Parking Lot B. St. Lucie 2017 Tritium Results (1l Summary, pCi/L Well number 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter H70 <1 61 195 <144 <158 H71 317 672 1266 830 H72 <161 <141 <144 <1 58 H73 <161 <141 <144 <158 H74 <161 <141 <144 <158 H75 <161 <141 <144 <159 H76 <167 <144 <144 <1 59 H77 <161 <141 <146 <159 H78 <160 <144 <146 <155 H79 <160 <144 <146 <155 Notes

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

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

2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT ST. LUCIE PLANT - UNITS 1 & 2 RADIOLOGICAL ENVIRONMENTAL SAMPLING LOCATIONS IN SUPPORT OF THE INDUSTRY INITIATIVE

~N INDIAN RIVER BIG MUD CREEK

+

-'*-'*" **** 0 t.*

0

--~-

ATLANTIC OCEAN (P!Chem/C -200/Rg. 1-3/Rev.Wpng)

L-2018-088, Annual Radiological Environmental Operating Report for Calendar Year 2017

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L-2018-088, Annual Radiological Environmental Operating Report for Calendar Year 2017

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