ML17228A612

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Correction to 1993 Semi-Annual Radioactive Effluent Release Rept & Response to Brookhaven Natl Lab Request for Info
ML17228A612
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 12/31/1993
From: Sager D
FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17228A609 List:
References
NUDOCS 9406220245
Download: ML17228A612 (19)
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Text

DAS/PSL ¹ St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 orrection l emi-Annual Radi c ive Effluent Rele e Re and Res onseto Br okhaven National Lahorator Re uest forlnforma ion ATTACHMENT 1 r

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during the interval May 27, 1993 through December 31, 1993 On March 29, 1994 a valve line up for initiating a Gaseous Release Permit for a Containment Purge Release was being performed as .per procedure. The operator discovered the Plant Vent Monitor isokinetic sample line valves in positions that were opposite from the plant procedure requirement, but were in accordance with a valve tag clearance alignment issued on May 27, 1993. The clearance alignment was incorrect, and the valves were repositioned as per plant procedure requirement.

During the misalignment interval, the Plant Vent Monitor was obtaining non-representative sampling for particulate radioactivity due to anisokinetic sampling where the sampling stream velocity was higher(super-isokinetic) than the release stream velocity.

A determination of the magnitude of the sampling error was made by:

1) reviewing ANSI N13-1-1969, in particular, Page 13 4.2.2.3 "Particle Size Fractionation due to Anisokinetic Sampling", states "When the air velocity through the sample probe and collector is greater than the stream velocity, smaller particles will be preferentially collected. The degree to which the fractionation occurs is a function of particle size, density, the particle size distribution, and the difference between the isokinetic velocity and the anisokinetic velocity employed. Except in very unusual situations, particles smaller than an aerodynamic diameter of about, five microns are able to follow the streamlines of the air, and the fractionation error is not great. Appendix C presents data showing the error which would be made for various conditions of anisokinetic sampling".
2) Reviewing the results of the last routine surveillance of the Ventilation Exhaust Treatment System that was performed on April 15, 1992. The results on the Flanders HEPA filter bank were 99.99 percent Mechanical Efficiency using poly dispersed aerosol as per ANSI/ASME'N510 test methods. Since these HEPA filters are upstream of the Plant Vent isokinetic sample nozzles, the particle size in this release stream would have been small.
3) By evaluating ANSI N13-1-1969's Appendix C "Errors due to Anisokinetic Sampling" Table Cl "Ratio of Observed to Actual Concentration of Particles when Sampled at Various Fractions and Multiples of Isokinetic Flow", an estimate of the sampling error can be determined for the super-isokinetic condition that existed during the misalignment. Assuming a Probe inlet velocity to Duct velocity ratio of 1.5, the ratio of observed concentration in a

sample to the Actual concentration, according to data in Table Cl, would be:

0.96 for < 4 um where um denotes micron size of particles.

This data suggest that the actual particulate activity would have been 4 percent higher than measured.

4) Based on ANSI N13-1 Table C1 data, the observed 99.99 Mechanical Efficiency Surveillance of the release stream on April 15, 1992, the sampling error was estimated at 4 percent low. The previously reported quantities, by Quarterly interval were as follows:

1993 UNIT Qtr¹2 Qtr¹3 Qtr¹4 Particulates (Half Life > 8 days) Ci 9.0E-6 O.OE 0 4.3E-5

5) Due to the estimated error being less than 4 percent, and the resultant dose impact being negligible, no correction in the previously reported dose values is necessary.
6) The release estimates of the current calendar year (1994) particulate radioactivity will be increased by 4 percent to account for the anisokinetic sampling interval in 1994.
7) The following pages are the corrected values for the Unit 1 1993 Semiannual Reports.

FLORIDA POWER 6 LIGHT COMPANY ST LUCIE UNIT 5 1 SEMIANNUAL REPORT JANUARY 1, 1993 THROUGH JUNE 30, 1993 TABLE 3.6-1 GASEOUS EFFZUENTS SUMMATION OF ALL REZEASES UNIT QTR51 QTRg2 A. Fission'and Activation Gases

1. Total Release Ci 2-18E+02 2.62E+01
2. Average Release Rate For Period uCi/sec 2-77E+Ol 3.33E+00 B. Iodines
1. Total Iodine-131 Ci 1-89E-04 1.34E-03
2. Average Release Rate For Period uCi/sec 2.40E-05 1.70E-04 C. Particulates
1. Particulates (Half Zife ) 8 days) Ci 3.29E-05 9.12E-06+

'2. Average Release Rate For Period uCi/sec 4.18E-06 1.16E-06ilC

3. Gross Alpha Radioactivity Ci 1. OOE-07 l. 44E-07%

D. Tritium

1. Total Release Ci 2.02E+00 2.96E-02
2. Average Release Rate For Period uCi/sec 2.57E-01 3.76E-03 R Dmus Wis va(ue, upas o.Ages~ 4o acco~gt go~ ~w p l'i~g ev-~ar o~ is4k:i~ekl<

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FLORIDA POKER & LIGHT COMPANY ST. LUCIE UNIT 5 1 SEMIANNUAL REPORT JANUARY 1 g 1 993 THROUGH JUNE 30 J 1 993 TABLE 3.7-1 GASEOUS EFFLUENTS GROUND LEVEL RELEASES Nuclides Continuous Mode Batch Mode Released Unit QTRSl QTR52 QTR$ 1 QTR52

1. Fission Gases AR-4 1 Ci O.OOE+00 O.OOE+00 3-35E-01 O.OOE+00 KR-85M Ci 2.37E-01 O.OOE+00 3.01E-01 O.OOE+00 KR-85 Ci O.OOE+00 7.75E+00 1.06E+01 1.42E+00 KR-87 Ci O.OOE+00 O.OOE+00 8.26E-03 O.OOE+00 KR-88 Ci O.OOE+00 O.OOE+00 2.28E-01 O.OOE+00 KR-89 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 KR-90 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 XE-127 Ci O.OOE+00 O.OOE+00 0-OOE+00 O.OOE+00 XE-131M Ci O.OOE+00 O.OOE+00 5.50E-01 O.OOE+00 XE-133M Ci 2.02E+00 O.OOE+00 1 41E+00 O.OOE+00 ZE-133 Ci 9.80E+Ol 1.63E+01 . 8.60E+01 4.21E-02 XE-135M Ci O.OOE+00 O.OOE+00 1.50E-03 O.OOE+00 ZE-135 Ci 1.10E+01 7 '0E-01 6.98E+00 O.OOE+00 XE-137 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 XE-138 Ci O.OOE+00 O.OOE+00 0 OOE+00 O.OOE+00 TOTAL FOR PERIOD Ci 1.11E+02 2.47E+01 1.06E+02 1.46E+00
2. Iodines I-131 Ci 1.89E-04 1.34E-03 I-132 Ci O.OOE+00 1.33E-02 I-133 Ci 1.24E-03 4.72E-04 I-134 Ci O.OOE+00 O.OOE+00 I-135 Ci O.OOE+00 O.OOE+00 TOTAL FOR PERIOD Ci 1.42E-03 1 5IE-02
3. Particulates ( 8 Days)

Cr-51 Ci O.OOE+00 O.OOE+00 Mn-54 Ci O.OOE+00 O.OOE+00 Fe-55 Ci 0 OOE+00 0 OOE+00 Co-57 Ci O.OOE+00 O.OOE+00 Co-58 Ci O.OOE+00 O.OOE+00 Fe-59 Ci O.OOE+00 O.OOE+00 Co-60 Ci 2.45E-05 1.15E-06 Z.n-65 Ci O.OOE+00 O.OOE+00 Zr-95 Ci O.OOE+00 O.OOE+00 Nb-95 Ci O.OOE+00 O.OOE+00

FLORIDA POWER & LIGHT COMPANY ST LUCIE" UNIT I 1 SEMIANNUAL REPORT JANUARY 1I 1993 THROUGH JUNE 30~ 1993 TABLE 3.7-1 GASEOUS EFFLUENTS GROUND LEVEL RELEASES (CONTINUED)

Nuclides Continuous Mode Released Unit QTRNl QTR52

3. Particulates ( ) 8 Days) (continued)

Sr-89 Ci O.OOE+00 O.OOE+00 Sr-90 Ci O.OOE+00 1 '3E-06 4 Y-90 Ci 0 ~ OOE+00 1.13E-06 Ac Ru-103 Ci O.OOE+00 O.OOE+00 Ag-110 Ci 0 ~ OOE+00 O.OOE+00 Sn-113 Ci O.OOE+00 O.OOE+00 Sb-124 Ci O.OOE+00 O.OOE+00 Sb-125 Ci O.OOE+00 O.OOE+00 Te-129m Ci O.OOE+00 O.OOE+00 Cs-134 Ci 3.44E-06 5.71E-06 Cs-136 Ci O.OOE+00 O.OOE+00 Cs-137 Ci 4 96E-06 O.OOE+00 Ba-140 Ci O.OOE+00 0 ~ OOE+00 Ce-141 Ci O.OOE+00 O.OOE+00 Ce-144 Ci O.OOE+00 O.OOE+00 TOTAL FOR PERIOD Ci 3.29E-05 9.12E-06 %

4. Particulates ( < 8 Days)

Mn-56 Ci O.OOE+00 O.OOE+00 Ni-65 Ci O.OOE+00 O.OOE+00 Br-82 Ci O.OOE+00 O.OOE+00 Rb-88 Ci 0 OOE+00 O.OOE+00 Rb-89 Ci 0 OOE+00 O.OOE+00 Sr-91 Ci 0 '0E+00 O.OOE+00 Sr-92 Ci O.OOE+00 O.OOE+00 Y-92 Ci O.OOE+00 O.OOE+00 Zr-97. Ci 0 ~ OOE+00 O.OOE+00 Nb-97'c-99m Ci O.OOE+00 O.OOE+00 Ci O.OOE+00 O.OOE+00 Mo-99 Ci O.OOE+00 O.OOE+00 Sb-122 Ci O.OOE+00 O.OOE+00 Te-129 Ci O.OOE+00 O.OOE+00 Te-132 Ci O.OOE+00 O.OOE+00 Cs-138 Ci O.OOE+00 O.OOE+00 La-140 Ci O.OOE+00 O.OOE+00 Pr-144 Ci O.OOE+00 O.OOE+00 W-187 Ci O.OOE+00 O.OOE+00 Np-239 Ci O.OOE+00 0.00E+00 TOTAL FOR PERIOD Ci O.OOE+00 O.OOE+00

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FLORIDA POWER 6 LIGHT COMPANY ST. LUCIE UNIT I 1 SEMIANNUAL REPORT JULY 1 I 1993 THROUGH DECEMBER 3 1 g 1 993 TABLE 3.6-1 GASEOUS EFFLUENTS SUMMATION OF ALL RELEASES UNIT QTRI3 QTRI4 A. Fission and Activation Gases

1. Total Release Ci 6.32E+00 1.09E+01
2. Average Release Rate For Period uci/sec 7.95E-01 1.38E+00 B. Iodines
1. Total Iodine-131 2 '1E-04 1.90E-04
2. Average Release Rate For Period uCi/sec 3 '1E-05 2.40E-05 C. Particulates
1. Particulates (Half Life > 8 days) Ci O.OOE+00 4.49E-05
2. Average Release Rate For Period uCi/sec O.OOE+00 5.65E-06
3. Gross Alpha Radioactivity Ci 1.31E-07 1.67E-07 D. Tritium
1. Total Release Ci 1 30E+00 1.27E+01
2. Average Release Rate For Period uCi/sec 1.64E-01 1.59E+00 was cLkglld'4 q~~pliv g error o~ i( sok'ice+~'~

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FLORIDA POWER 6 LIGHT COMPANY ST LUCIE UNIT I 1 SEMIANNUAL REPORT JULY 1, 1993 THROUGH DECEMBER 31, 1993 TABLE 3.7-1 GASEOUS EFFLUENTS GROUND LEVEL RELEASES Nuclides Continuous Mode Batch Mode Released Unit QTRI3 QTRg4 QTRN3 QTR54

1. Fission, Gases AR-4 1 Ci 3.81E-01 O.DOE+00 4.51E-02 O.OOE+00 KR-85M Ci 4.44E-02 O.DOE+00 8.86E-03 O.DOE+00 KR-85 Ci O.DOE+00 O.DOE+00 O.DOE+00 O.DOE+00 KR-87 Ci O.DOE+00 D I ODE+00 2.39E-03 O.DOE+00 KR-88 Ci D.DOE+00 O.DOE+00 1.25E-02 O.OOE+00 KR-89 Ci O.DOE+00 O.DOE+00 O.DOE+00 O.DOE+00 KR-90 Ci O.DOE+00 O.DOE+00 O.OOE+00 O.DOE+00 ZE-127 Ci O.DOE+00 O.DOE+00 O.DOE+00 O.DOE+00 ZE-131M Ci O.DOE+00 O.DOE+00 O.DOE+00 O.DOE+00 XE-133M Ci O.DOE+00 O.DOE+00 7.50E-03 O.DOE+00 XE-133 Ci 1.54E+00 4.89E+00, 5.36E-Ol 1.29E-01 XE-135M Ci O.OOE+00 0 O.DOE+00 O.DOE+00 XE-135 Ci 3.57E+00 DOE+00',-.92E+00 1.68E-01 5.39E-04 ZE-137 Ci O.DOE+00 O.DOE+00 O.DOE+00 O.DOE+00 XE-138 Ci O.OOE+00 O.DOE+00 O.DOE+00 O.DOE+00 TOTAL FOR PERIOD Ci 5.54E+00 1.08E+Ol 7.80E-01 1.29E-01
2. Iodines I>> 13 1 Ci 2.71E-04 1.90E-04 I-132 Ci O.DOE+00 0 DOE+00 I-133 Ci 8.96E-04 2.31E-04 I-134 Ci O.DOE+00 O.DOE+00 I-135 Ci O.DOE+00 O.DOE+00 TOTAL FOR PERIOD Ci 1.17E-03 4-22E-04
3. Particulates ( > 8 Days)

Cr-51 Ci O.DOE+00 O.DOE+00 Mn-54 Ci O.DOE+00 O.DOE+00 Fe-55 Ci O.DOE+00 O.DOE+00 Co-57 Ci O.DOE+00 O.DOE+00 Co-58 Ci O.DOE+00 O.DOE+00 Fe-59 Ci O.DOE+00 O.DOE+00 Co-60 Ci D.DOE+00 3.92E-05%<.

Zn-65 Ci O.DOE+00 O.DOE+00 Zr-95 Ci D.DOE+00 O.DOE+00 Nb-95 Ci 0 DOE+00 O.DOE+00 p~ggs ~is vo.(Q.c mes a(Lj g+e4 +o c4cc~vt ~ sawp II~9 error on l~okin&c.

FLORIDA PONER Er LIGHT COMPANY ST. LUCIE UNIT ¹ 1 SEMIANNUAL REPORT JULY 1, 1993 THROUGH DECEMBER 31, 1993 TABLE 3.7-1 GASEOUS EFFLUENTS GROUND LEVEL RELEASES (CONTINUED)

Nuclides Continuous Mode Released Unit gTR¹3 QTR¹4

3. Particulates ( ) 8 Days) (continued)

Sr-89 Ci 0 OOE+00 O.OOE+00 Sr-90 Ci O.OOE+00 O.OOE+00 Y-90 Ci 0 OOE+00 O.OOE+00 Ru-103 Ci O.OOE+00 O.OOE+00 Ag-110 Ci O.OOE+00 0 ~ OOE+00 Sn-113 Ci O.OOE+00 0 OOE+00 Sb-124 Ci O.OOE+00 O.OOE+00 Sb-125 Ci O.OOE+00 O.OOE+00 Te-129m Ci O.OOE+00 O.OOE+00 Cs-134 Ci 0 OOE+00 O.OOE+00 Cs-136 Ci 0 OOE+00 O.OOE+00 .

Cs-137 Ci O.OOE+00 5.74E-06 <

Ba-140 Ci 0 OOE+00 O.OOE+00 Ce-141 Ci 0 OOE+00 0 OOE+00 Ce-144 Ci O.OOE+00 O.OOE+00 TOTAL FOR PERIOD Ci O.OOE+00 4.49E-05 ~

4. Particulates ( < 8 Days)

Mn-56 Ci O.OOE+00 0 OOE+00 Ni-65 Ci O.OOE+00 0 ~ OOE+00 Br-82 Ci O.OOE+00 O.OOE+00 Rb-88 Ci O.OOE+00 0 ~ OOE+00 Rb-89 Ci O.OOE+00 0 OOE+00 Sr-91 Ci O.OOE+00 O.OOE+00 Sr-92 Ci O.OOE+00 0 OOE+00 Y-92 Ci O.OOE+00 0 OOE+00 Zr-97 Ci 0 OOE+00 0 OOE+00 Nb-97 Ci O.OOE+00 O.OOE+00 Tc-99m Ci 0 OOE+00 0 OOE+00 Mo-99 Ci O.OOE+00 5.40E-05 4 Sb-122 Ci O.OOE+00 0 OOE+00 Te-129 Ci O.OOE+00 0 OOE+00 Te-132 Ci O.OOE+00 0 OOE+00 Cs-138 Ci 0 OOE+00 O.OOE+00 La-140 Ci 0 ~ OOE+00 0 OOE+00 Pr-144 Ci O.OOE+00 0 OOE+00 W-187 Ci 0 OOE+00 O.OOE+00 Np-239 Ci O.OOE+00 0 OOE+00 TOTAL FOR PERIOD Ci O.OOE+00 5 40E-05 ~

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St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 orrec i n I Semi-Annu i Radioac ive Effluen Rel ase Re Res n e Br okhaven Nati nal Laborator Re u s f rInf rm i n ATTACHMENT 2

FLORIDA POWER PERIOD OF RECORD:

SZ. LUCIE PLANT Jan. 1, 1993 i

LIGHT COMPANY to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WINO DIRECTION ANO WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY A WIND SECTOR )0-METER WIND SPEED (mph) SECTOR MEAN IECTOR NUMBER 1-3 4-7 8-12 13-18 19-24 )24 PCT. SPEED NNE 1 0.012 0.350 0.603 0.012 0.000 0.000 0.976 8.085 HE 2 0.000 0.350 1.350 0.036 0.000 0.000 1.736 8.884 ENE 3 0.000 0.241 1.206 0 ~ 145 0.000 0.000 1.591 9.320 E 4 0.000 0.169 2.013 0.289 0.012 0.024 2.508 10.443 ESE 5 0.000 0.121 1.591 0.096 0.000 0.000 1.808 9.822 SE 6 0.000 0.012 0.494 0.265 0.012 0.000 0.784 11.771 SSE 7 0.000 0.000 0.000 0.012 0.000 0.000 0.012 12.500 5 8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 9 0.000 0.000 O.OOD O.ODD 0.000 0.000 0.000 0.000 SW 10 0.000 0.012 0.048 0.012 0.000 0.000 0.072 10.233 WSW 11 0.000 0.012 0.157 0.024 0.000 0.012 0.205 11.265 W 12 0.000 0.000 0.398 0.036 0.000 0.012 0.446 10.708 WNW 13 0.000 0.012 0.289 0.048 0.000 0.000 0.350 9.910 NW 14 0.000 0.048 0.350 0.096 0.000 0.000 0.494 10.363 NNW 15 0.000 0.145 0.603 0.024 0.000 0.000 0.772 9.055 H 16 0.000 D.434 1.169 0.096 0.000 0.000 1.700 8.865 SUBTOTALS 0.012 1.905 10.271 1.193 0.024 0.048 13.454 9.658 0.000 0 PASQUILL CATEGORY TOTAL (8): 13.454 9.658 TOTAL HOURLY OBSERVATIONS FOR YEAR  :. 8760 NUMBER OF VALID CATEGORY OBSERVATIONS: 1116 VALID DATA PERCEHTAGE FOR YEAR - 12.740

FLORIDA POWER P'ERIOD OF RECORD:

6 ST. LUCIE PLANT i

LIGHT COMPANY Jen. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION AND WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY B WIND SECTOR 10-METER WIND SPEED (mph) SECTOR MEAN SECTOR NUMBER 1-3 4-7 8-12 13-18 19-24 >24 PCT. SPEED NNE 1 0.000 0.181 0.096 0.060 0.000 0.000 0.338 8.379 NE 2 0.000 0.181 0.265 0.048 0.000 0.000 0.494 8.566 ENE 3 0.000 0.241 0.434 O.D36 0.000 0.000 0.711 8.492 E 4 0.000 0.217 0.338 0.048 0.000 0.000 0.603 8.878 ESE 5 0.000 0.108 0.265 0.000 0.000 0.000 0.374 8.271 SE 6 0.000 0.036 0.313 0.121 0.000 0.000 0.470 10.854 SSE 7 0.000 0.000 0.000 0.048 0.012 0.000 0.060 15.940 S 8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 10 0.000 0.012 0.060 0.000 0.000 0.000 0.072 10 '67 WSW 11 0.000 0.036 0.012 0.012 0.000 0.012 0.072 11.483 W 12 0.000 0.012 0.084 0.000 0.000 0.024 0.121 12.100 WHW 13 0.000 0.036 0.072 0.000 0.000 0.000 0.108 8.033 NW 14 0.000 0.096 0.108 0.012 0.000 0.000 0.217 8.083 NNW 15 0.000 0.048 0.121 0.000 0.000 0.000 0.169 7<<843 N 16 0.000 0.241 0.121 0.012 0.000 0.000 0.374 7.406 SUBTOTALS 0.000 1.447 2.291 0.398 0.012 0.036 4.183 8.927 CALM 0.000 0 PASQUILL CATEGORY TOTAL (w): 4.183 8.927 TOTAL HOURLY OBSERVATIONS FOR YEAR 8760 NUMBER OF VALID CATEGORY OBSERVATIONS: 347 VALID DATA PERCEHTAGE FOR YEAR - 3.961

FLORIDA POWER 6 LIGHT COMPANY ST. LUCJE PLANT PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION AND WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY C WIND SECTOR 10-METER WIND SPEED (mph) SECTOR MEAN SECTOR NUMBER 1-3 4-7 8-12 13-18 19-24 >24 PCT. SPEED NNE 1 0.000 0.157 0.084 0.024 0.000 0.000 0.265 7.818 NE 2 0.000 0.313 0.253 0.048 0.000 0.000 0.615 7.841 ENE 3 0.000 0.374 0.253 0.084 0.000 0.000 0.711 8.280 E 4 0.000 0.181 0.289 0.036 0.000 0.000 0.506 8.431 ESE 5 0.000 0.060 0.229 0.024 0.000 0.000 0.313 8.596 SE 6 0.000 0.060 0.470 0.084 0.000 0.000 0.615 10.229 SSE 7 0.000 0.000 0.096 0.012 0.012 0.000 0.121 11.110 S 8 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 10 0.000 0.000 0.024 0.024 0.000 0.000 0.048 11.175 WSW 11 0.000 0.036 0.048 0.000 0.000 0.000 0.084 8.843 W 12 0.000 0.036 0.121 0.000 0.012 0.000 0.169 9.714 WNW 13 0.012 0.060 0.072 0.012 0.000 0.000 0.157 7.800 NW 14 0.012 0.096 0.060 0.036 0.000 0.000 0.205 7.594 NNW 15 0.000 0.108 0.072 0.012 0.000 0.000 0.193 7.306 N 16 0.000 0.229 0.060 0.012 0.000 0.000 0.301 6.460 SUBTOTALS 0.024 1.712 2.134 0.410 0.024 0.000 4,304 8.466 CALM 0.000 0 PASQUILL CATEGORY TOTAL (~i): 4.304 8.466 TOTAL HOURLY OBSERVATIONS FOR YEAR  : ~

8760 NUMBER Of VALID CATEGORY OBSERVATIONS: 357 VALID DATA PERCENTAGE FOR YEAR  : 4.075

FLORIDA, POWER 6 LIGHT COMPANY ST. LUC1E PLANT PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION AND WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY D WIND SECTOR 10-METER WIND SPEED (mph) S ECTOR MEAN SECTOR NUMBER 1-3 4-7 8 12 13-18 19-24 >24 PCT. SPEED NNE 1 0.048 1.085 0.892 0.313 0.012 0.000 2.351 8.325 NE 2 0.157 1.543 1.881 0.458 0.000 0.000 4.039 8.344 ENE 3 0.048 1.338 2.061 1.193 0.169 0.000 4.810 10.081 E 4 0.036 0.989 2.423 0.747 0.012 0.000 4.207 9.861 ESE 5 0.024 0.892 1.615 0 '13 0.000 0.000 2.845 8.879 SE 6 0.000 0.675 1.290 0.169 0.000 0.000 2.134 8.854 SSE 7 0.024 0.374 0.916 0.325 0.096 0.000 1.736 10.411 S 8 0.048 0.338 1.121 0.386 0.036 0.012 '1.941 10.053 SSW 9 0.036 0.735 0.772 0.169 0.060 0.060 1.832 9.468 SW 10 0.024 0.711 0.362 0.145 0.012 0.000 1,254 7.859 WSW 11 0.036 0.410 0.181 0.024 0.024 0.012 0.687 7 '88

'W 12 0.048 0.470 0.398 0.036 0.024 0-000 0 976 7-563 WNW 13 0.036 0.567 0.398 0.060 0.000 0.000 1.061 7.728 NW 14 0.048 0.567 0.772 0.205 0.000 0.000 1.591 8.523 NNW 15 0.036 0.446 0.747 0.060 0.000 0.000 1.290 8.113 N 16 0.072 0.675 0.844 0.084 0.000 0.000 1.676 7.893 SUBTOTALS ,

0.723 11.814 16.673 4.690 0.446 0 '84 34.430 9.009 CALM 0.000 0 PASQUILL CATEGORY TOTAL (4): 34.430 9.009 TOTAL HOURLY OBSERVATIONS FOR YEAR 8760 NUMBER OF VALID CATEGORY OBSERVATIOHS: 2856 VALID DATA PERCENTAGE FOR YEAR: 32.603

FLORIDA POWER 6 LIGHT COHPANY ST. LUCIE PLANT PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF 'WIND DIRECTION AND WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY E WIND SECTOR 10-HETER WIND SPEED (Ulph) SECTOR MEAN SECTOR NUHBER 1" 3 4-7 8"12 13-18 19-24 +24 PCT. SPEED NHE 1 0.699 1.435 0.699 0.265 0.024 0.000 3.122 6.533 2 0.506 2.086 1.133 0.350 0.000 0.000 4.075 7.048 ENE 3 0.121 0.832 0.675 0.072 0.000 0.000 1.700 7.503 4 0.145 0.820 1.073 0.145 0.012 0.000 2.194 8.241 ESE 5 0.096 1.290 1.844 0 '10 0.012 0.000 3.653 8.472 SE 6 0.169 1.254 0.904 0.145 0.000 0.000 2.471 7.270 SSE 7 0. 108 1.386 1. 061 0.084 0.000 0.000 2.640 7.278 8 0.169 0.940 0.663 0.181 0.060 0.000 2.013 7.884 SSW 9 0.133 0.976 0.313 0.133 0.048 0.012 1.615 7.275 SW 10 0.133 1.459 0.325 0.072 0.012 0.000 2.001 6.208 WSK 11 0.398 0.952 0.205 0.012 0.012 0.000 1.579 5.201 12 0.446 1.218 0.422 0.024 0.012 0.000 2.122 5.663 WHW 13 0.350 1.615 0.530 0.012 0.000 0.000 2.508 5.788 HW 14 0.301 2.086 1.459 0.048 0.000 0.000 3.894 6.839 NHW 15 0.301 1.133 0.410 0.036 0.000 0.000 1.881 6.047 16 0.265 1.097 0.362 0.024 0.000 0.000 1.748 5.724 SUBTOTALS 4.340 20. 579 12.080 2.013 0. 193 0.012 39.216 6.907 CALM 0.012 0 PASQUILL CATEGORY TOTAL (4): 39.228 6.905 TOTAL HOURLY OBSERVATIONS FOR YEAR: ~ 8760 NUMBER OF VALID CATEGORY OBSERVATIONS: 3254 VALID DATA PERCENTAGE FOR YEAR: 37.146

FLORIDA. POWER 6 LIGHT COMPANY ST. LUCIE PLANT PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION AND WIND SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY F WIND SECTOR 10-METER WIND SPEED (mph) SECTOR MEAN SECTOR NUMBER 1-3 4-7 8-12 13-18 19-24 )24 PCT. SPEED HNE 1 0.036 0.060 0.000 0.000 0.000 0.000 0.096 3.875 NE 2 0.048 0.096 0.000 0.000 0.000 0.000 0.145 3.892 ENE 3 0.036 0.036 0.000 0.000 0.000 0.000 0.072 4.017 E 4 0.048 0.024 0.024 0.000 0 F 000 0.000 0.096 4.988 ESE 5 0.000 0.036 0 F 000 0.000 0.000 0.000 0.036 5.167 SE 6 0.012 0.000 0.000 0.000 0.000 0.000 0.012 3.200 SSE 7 0.000 0.060 0.000 0.000 0.000 0.000 0.060 6.020 S 8 0.024 0.048 0.012 0.000 0.000 0.000 0.084 4.143 SSW 9 '.060 0.253 0.000 0.000 0.000 0.000 0.313 4.727 SW 10 0.096 0.096 0.012 0.000 0.000 0.000 0.205 3.918 WSW 11 0.096 0.217 0.000 0.000 0.000 0.000 0.313 4.023 W 12 0.121 0.265 0.000 0.000 0.000 0.000 0.386 3.841 WNW 13 0.060 0.277 0.000 0.000 0.000 0.000 0.338 4.839 HW 14 0.108 0.844 0.012 0.000 0.000 0.000 0.964 4.750 NHW 15 0.024 0.229 0.000 0.000 0.000 0.000 0.253 4.938 N 16 0.048 0.024 0.000 0.000 0.000 0.000 0.072 3.667 SUBTOTALS 0.820 2.568 0.060 0.000 0.000 0.000 3-448 4.467 CAu4 0.000 0 PASQUILL CATEGORY TOTAL (5s): 3.448 4.467 TOTAL HOURLY OBSERVATIONS FOR YEAR: 8760 NUMBER OF VALID CATEGORY OBSERVATIONS: 286 VALID DATA PERCENTAGE FOR YEAR: 3.265

FLORIDA POWER 8 LIGHT COMPANY ST. LUCIE PLANT PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION AND WIHD SPEED BY VERTICAL STABILITY CATEGORY PASQUILL CATEGORY G WIND SECTOR 10-METER WIND SPEED (mph) SECTOR HEAR SECTOR NUMBER 1-3 4-7 8-12 13-18 19-24 )24 PCT. SPEED NNE 1 0.012 0.000 0.000 0.000 0.000 0.000 0.012 2.300 NE 2 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 3 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 6 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 7 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 8 0.000 0.012 0.000 0.000 0.000 0.000 0.012 3.600 SSW 9 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 SW 10 0 '96 0.036 0.000 0.000 0.000 0.000 0.133 3.209 WSW 11 0.036 0.145 0.000 0.000 0.000 0.000 0.181 3.980 12 0.072 0.060 0.000 0.000 0.000 0.000 0.133 3.682 WNW 13 0.072 0.133 0.000 0.000 0.000 0.000 0.205 4.165 NW 14 0.048 0.217 0.000 0.000 0.000 0.000 0.265 4.027 NNW 15 0.012 0.000 0.000 0.000 0.000 0.000 0.012 2.900 16 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTALS 0.350 0.603 0.000 0.000 0.000 0.000 0.952 3.844 CALM 0.000 0 PASQUILL CATEGORY TOTAL (4): 0.952 3.844 TOTAL HOURLY OBSERVATIONS FOR YEAR  : 8760 NUMBER OF VALID CATEGORY OBSERVATIONS: 79 VALID DATA PERCENTAGE FOR YEAR: 0.902

FLORIDA POWER 6 L GNT COHPAKY ST. LUCIE PLANT "

PERIOD OF RECORD: Jan. 1, 1993 to Dec. 31, 1993 ANNUAL REPORT OF PERCENT FREQUENCY OF WIND DIRECTION ANO MIND SPEED BY VERTICAL STABILITY CATEGORY ALL PASQUILL CATEGORIES WIND SECTOR 10-HETER MIND SPEED (mph) SECTOR HEAN SECTOR NUHBER 1-3 4-7 8-12 13-18 19"24 +24 PCT. SPEED NNE 1 0.808 3.267 2.375 0.675 0.036 0.000 7.161 7.425 NE 2 0.711 4.569 4.882 0.940 0.000 0.000 11.103 7.877 ENE 3 0.205 3.062 4.629 1.531 0.169 0.000 9.596 9.201 E 4 0.229 2.399 6.160 1.266 0.036 0.024 10.115 9.477 ESE 5 0.121 2.508 5.546 0.844 0.012 0.000 9.030 8.854 SE 6 0. 181 2.037 3.472 0. 784 0.012 0.000 6 486 8.868 SSE 7 0.133 1.820 2.074 0.482 0.121 0.000 4.629 8.663 S 8 0.241 1.338 1.796 0.567 0.096 0.012 4.051 8.833 SSW 9 0.229 1.965 1.085 0.301 0.108 0.072 3.761 8.131 SM 10 0.350 2.327 0.832 0.253 0.024 0.000 3.785 6.739 MSW 11 0.567 1.808 0.603 0.072 0.036 0.036 3.122 6.157 W 12 0.687 2.061 1.423 0.096 0.048 0.036 4.352 6.720 MNW 13 0.530 2.700 1.362 0.133 0.000 0.000 4.726 6.509 NM 14 0.518 3.954 2.761 0.398 0.000 0.000 7.631 7.112 NNW 15 0.374 2.110 1.953 0.133 0.000 0.000 4.569 7.188 N 16 0.386 2.700 2.556 0.229 0.00D O.ODD 5.871 7.372 SUBTOTALS 6.269 40.627 43.508 8.704 0.699 0.181 99.988 8.039 CALH 0.012 0 PASQUILL CATEGORY TOTAL (c): 100.000 8.038 TOTAL HOURLY OBSERVATIONS FOR YEAR  : 8760 NUMBER OF VALID CATEGORY OBSERVATIONS- 8295 VALID DATA PERCENTAGE FOR YEAR  : 94.692

I l 0 N

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