Text

Estimated Dose Report for 2004 Maine Yankee Atomic Power Station
	ML051230425
Person / Time
Site:	Maine Yankee
Issue date:	04/27/2005
From:	; Maine Yankee Atomic Power Co
To:	; Document Control Desk, NRC/FSME
References
	47-5063792-00
	Download: ML051230425 (26)
	v • d • e

ESTIMATED DOSE REPORT FOR 2004 MAINE YANKEE ATOMIC POWER STATION Docket No. 50-309 License No. DPR-36 Maine Yankee Atomic Power Company AREVA Doc. # 47-5063792-00

TABLE OF CONTENTS Page TABLE OF CONTENTS.................

i LIST OF TABLES...................

ii LIST OF FIGURES...

iii

1.0 INTRODUCTION

2.0 METEOROLOGICAL DATA 2

3.0 DOSE ASSESSMENT

.3 3.1 Doses from Liquid Effluents

.3 3.2 Doses from Noble Gases

.3 3.3 Doses from Tritium and Radionuclides in Particulate Form

.3 3.4 Total Dose from Direct External Radiation, Plus Liquid and Gaseous Effluents

.4

4.0 REFERENCES

6

LIST OF TABLES Page TABLE I Maximum Off-Site Doses/Dose Commitments to Members of the Public from Liquid and Gaseous Effluents for 2004......................................................

7 TABLE 2 Maximum Annual Dose Commitments from Direct External Radiation, Plus Liquid and Gaseous Effluents for 2004.....................................................

8 TABLE 3 Receptor Locations......................................................

9 TABLE 4 Usage Factors for Various Liquid Pathways.....................................................

10 TABLE 5 Usage Factors for Various Gaseous Pathways.....................................................

11 TABLE 6 Environmental Parameters for Gaseous Effluents.....................................................

12 TABLES A-H Jan. 1986 - Dec. 1990, Meteorological Data Joint Frequent Distribution........... 13-20

-ii-

LIST OF FIGURES FIGURE I Maine Yankee Jan. 1986 - Dec. 1990 35-Foot Wind Data...................................... 21 FIGURE 2 Maine Yankee Jan. 1986 - Dec. 1990 197-Foot Wind Data.................................... 22

-111-

MAINE YANKEE ATOMIC POWER STATION ESTIMATED DOSE REPORT FOR 2004

1.0 INTRODUCTION

This report summarizes the radiological dose commitments resulting from all radioactive liquid and gaseous effluent discharges during the 2004 calendar year. The off-site doses presented by calendar quarter in Table I were determined from primary effluent data sets, which have been summarized and reported to the NRC in the Annual Radioactive Effluent Release Report for 2004. Cumulativejoint frequency distributions for wind speed, wind direction, and atmospheric stability for the 5-year period, January 1986 to December 1990, are provided in Tables A through H. Annual wind roses are also provided in Figures 1 and 2.

For the purposes of demonstrating compliance with 40CFR190, "Environmental Radiation Protection Standards for Nuclear Power Operations," radiation dose estimates must include direct radiation contributions from significant plant sources. Data from thermoluminescent dosimeters (TLDs) in the area of the western security fence (Bailey Cove mud flats) and around the Independent Spent Fuel Storage Installation (ISFSI) were evaluated for potential direct / scatter dose contributions to members of the public off-site to determine compliance with the 40CFRI90 dose limits. This includes use of the mud flats in Bailey Cove during periods of low tide as past years assessments indicated that this was an area impacted by on-site fixed radiation sources. Table 2 lists the results from the combined impact of all plant sources (liquids, gases and fixed) to any member of the public in both Bailey Cove and off-site areas near the ISFSI.

Dose commitments from the discharge of radioactive liquid and gaseous effluents were estimated in accordance with the "Maine Yankee Atomic Power Station Off-Site Dose Calculation Manual" (ODCM), and are reported herein as required by ODCM Appendix C.3 (Reference 1). These dose estimates were developed using a "Method II" analysis as described in the ODCM. The Method II analysis incorporates the methodology of Regulatory Guide 1.109 (Reference 2) and 5-year historical measured meteorological data. Table 3 lists important receptor locations as determined by the 2004 Annual Land Use Census.

All calculated liquid and gaseous pathway doses for this reporting period are well below the dose criteria of 10CFR50, Appendix 1, and the dose limits for effluent releases stated in the Maine Yankee ODCM. In addition, the total dose to the most limiting member of the public due to the combined exposure to plant-related direct radiation and liquid and gaseous effluents was below the dose standards of 40CFR190.

-I-

2.0 METEOROLOGICAL DATA With the permanent shutdown and decommissioning of Maine Yankee, the generation of gaseous fission and activation products and operation of the batch gas process system has ended. All atmospheric effluent releases during the remaining parts of the decommissioning process in 2004 were associated with evaporative losses from the Spent Fuel Pool (SFP) and gaseous releases associated with fuel transfer to dry storage canisters. These release types are considered continuous or repeated random occurrences. Guidance provided in Section 3.3 of NUREG-0133 (Reference 6) recommends the use of historical annual average meteorological data for calculating doses under conditions of continuous (or multiple random events) releases. Accordingly, the ODCM recognizes the use of historical annual average data to assess effluent releases during the final stages of decommissioning. The site's meteorological tower was taken out of service in 2000.

Historical meteorological data collected from the site's 200-foot meteorological tower (located approximately 1800 feet northeast of the former Primary Vent Stack) was used in determining offsite doses for gaseous effluent releases during 2004. The tower instrumentation was designed to meet the requirements of Regulatory Guide 1.23 (Reference 3) for meteorological monitoring. Cumulative joint frequency distributions for wind speed, direction, and stability class for the calendar years 1986 -1990 are provided in Tables A through H. Wind rose patterns for all stability classes for the same period are illustrated on Figures 1 and 2.

A primary remaining release point for gaseous discharges in 2004 was from the Fuel Building Vent (FBV) exhaust. It is treated as a ground level release since it does not qualify as an elevated or mixed mode release point as defined in Regulatory Guide 1.111 (Reference 4).

Atmospheric dispersion values, CHI/Q and D/Q, were derived for all receptor points from the site meteorological record using a straight-line airflow model. In the dispersion calculations, lower level wind data collected from the site meteorological tower are used "as is" for the FBV (ground level release point) in keeping with the guidance provided in the NRC meteorological dispersion code "XOQDOQ", NUREG/CR-2919 (Reference 5).

Since the SFP was demolished in the second quarter of 2004 following completion of all spent fuel transfer to the ISFSI, there are only two quarters of ground level release data for 2004.

3.0 DOSE ASSESSMENT 3.1 Doses from Liquid Effluents ODCM Section 2.1.4 limits total body and organ doses from liquid effluents to members of the public in unrestricted areas to those values specified in IOCFR Part 50, Appendix I. The limit for total body dose is 1.5 mrem per calendar quarter, and 3 mrem per calendar year. The limit for organ doses is 5 mrem per calendar quarter and 10 mrem per calendar year. By implementing the requirements of IOCFR Part 50, Appendix 1, ODCM Section 2.1.4 assures that the release of radioactive material in liquid effluents will be kept "as low as is reasonably achievable."

Potential exposure pathways associated with liquid effluents from Maine Yankee are ingestion of fish/shellfish and direct exposure from shoreline sedimentation. The drinking water and irrigation pathways do not exist due to the saltwater nature of the receiving water estuary.

The calculated doses from liquid effluents incorporate near-field mixing in an area of the estuary (approximately 13 acres) originally credited to the plant's effluent releases for doses due to ingestion of fish, shellfish, and shoreline exposures. Table 4 lists the usage factors by age group and pathway that were applied to liquid effluent.

The whole body and organ doses resulting from liquid effluent discharges are the summations of dose contributions via all active exposure pathways for each release during the reporting period.

Table I presents the maximum whole body and organ doses from liquid effluent to a member of the public. The estimated quarterly and annual doses resulting from liquid effluent discharges are well below the IOCFR5O, Appendix I dose criteria.

3.2 Doses from Noble Gases During the time of effluent releases, the ODCM (Section 2.2.4 in 2004) limited the gamma air dose and beta air dose from noble gases released in gaseous effluent from the site to areas at and beyond the site boundary to those values specified in 10CFR50, Appendix I. The limit for gamma air doses was 5 mrad per calendar quarter and 10 mrad per year. The limit for beta air doses was 10 mrad per calendar quarter and 20 mrad per year. By implementing the requirements of IOCFR50, the releases of radioactive noble gases in gaseous effluents are kept "as low as is reasonably achievable."

Gamma and beta air doses due to noble gases in gaseous effluent are calculated for several locations when noble gases are recorded in effluent. Those locations are the point of approximate highest off-site ground level air concentration of radioactive material, site boundary (or closest point on opposite shoreline in directions which border the river), nearest resident, nearest vegetable garden, and nearest milk animal within five miles for each of the sixteen principle compass directions.

During 2004, a total of 4.68 Ci of Krypton-85 was detected in the first quarter. This is a result of spent fuel assemblies being transferred from the Spent Fuel Pool to Transportable Storage Canisters (TSC) before their placement on the Independent Spent Fuel Storage Installation (ISFSI). The maximum gamma and beta air doses resulting from these releases are included in Table 1.

3.3 Doses from Tritium and Radionuclides in Particulate Form Section 2.2.5 of the ODCM (in 2004) implemented limits on organ doses established in IOCFR50 Appendix I, which assured that the releases of iodines, tritium and particulates in gaseous effluent will be kept "as low as is reasonably achievable." Organ doses to individuals located at or beyond the site boundary as a result of tritium and particulate-form radionuclides (with half-lives greater than 8 days) in gaseous effluent are limited to 7.5 mrem per quarter and 15 mrem per year doses. Short-lived radionuclides such as Iodine-131 and Iodine-133 have decayed away since the permanent shutdown of the plant and no longer present any potential dose to the public.

Potential exposure pathways associated with gaseous effluent are (i) external irradiation from radioactivity deposited on the ground surface, (ii) inhalation, and (iii) ingestion of vegetables, meat, and milk. Dose estimates were determined for site boundary locations (including opposite shoreline for boundaries next to water) and for the locations of the nearest resident, vegetable garden, and milk animal in each of the sixteen principle compass directions. The locations of the nearest resident, vegetable garden, and milk animal in each sector were identified by the 2004 Annual Land Use Census as required by ODCM Section 2.4.4 (see Table 3). Additionally, doses were calculated at the point of approximate maximum ground level air concentration of radioactive materials in gaseous effluent.

Doses were calculated for pathways that were determined by the field survey to actually exist.

Conservatism in the dose estimates was maintained by assuming that the vegetable garden pathway was active at each milk animal location and that meat ingestion was an active exposure pathway at each milk cow location. Meat and milk animals were assumed to receive their entire intake from pasture during the second and third quarters. This is a conservative assumption because most dairy operations utilize supplemental feeding when animals are on pasture, or actually restrict animals to full time silage feeding throughout the entire year. Usage factors for gaseous effluent are listed by age group and pathway in Table 5. Table 6 provides dose model parameter assumptions used in the dose assessment.

The organ doses were determined by summing the contributions from all exposure pathways at each location. Doses were calculated for the whole body, GI-tract, bone, liver, kidney, thyroid, lung, and skin for adults, teenagers, children, and infants. The estimated quarterly and annual organ doses due to iodines, tritium and particulates at the location of the maximally exposed individual are reported in Table 1. The estimated organ doses from iodines, tritium and particulates in gaseous effluents are well below the I0CFR50, Appendix I dose criteria.

3.4 Total Dose from Direct External Radiation, Plus Liquid and Gaseous Effluents The annual (calendar year) total dose or dose commitment to any member of the public due to releases of radioactivity and direct radiation from fixed sources are limited to the EPA's radiation protection standards for the uranium fuel cycle (40CFR190). The dose limits are set to less than or equal to 25 mrem per year to the total body or any organ, except the thyroid, which is limited to less than or equal to 75 mrem per year.

Direct external dose from fixed sources of radioactive materials on-site were estimated from Maine Yankee's 2004 TLD data. For the ISFSI, a series of TLDs have been located in each of the sixteen compass sectors within 340 meters of the center of the facility. An assessment of the quarterly TLD data from before any radioactive materials were placed into storage, through the fourteen month transfer period of materials onto the ISFSI, and following completion of all transfers in early 2004 was performed. The closest site boundary to the ISFSI is about 1100 feet from the center of the facility in the NE and ENE sectors, with the nearest real resident approximately twice this distance. The TLD history for the closest site boundary areas did not show any significant change in exposure rate from the pre-operational period through the full ISFSI configuration in 2004. Therefore, it is concluded that there was no measurable or significant direct dose to any offsite member of the public from the ISFSI.

The data from TLDs posted in the area from the western security fence to the edge of Bailey Cove indicate potentially above-background radiation in 2004 (net exposure determined to be within the statistical uncertainty of the TLD measurements). The annual direct dose from plant-related fixed radiation sources to members of the public on the mud flats (the closest off-site area to the former plant structures), as derived from TLD measurements (not considering the measurement uncertainty), was estimated to be 0.06 mrem. That estimated dose incorporated an occupancy time of 325 hours0.00376 days 0.0903 hours 5.373677e-4 weeks 1.236625e-4 months per year for worm diggers, as stated in the Maine Yankee ODCM. The receptor location used in the dose assessment was the center of the nearest portion of mud flats exposed at low tide, approximately 150 meters from the location of the former Primary Vent Stack. It is noted that most of the mud flat region in Bailey Cove that is used by the public is situated further away from this selected reference point. As a result, actual exposures from direct radiation would be less than the value applied in the estimate of direct dose to the worm diggers as they move across the flats.

The dose from liquid and gaseous effluents affecting Bailey Cove was added to the direct plant-related dose. Liquid and gaseous effluent doses were calculated as described above in determining compliance with the "as low' as reasonably achievable" dose objective of IOCFR50, Appendix I. Those doses were found to be only small fractions of the direct plant-related dose. In 2004, the total dose to a member of the public using the mud flats due to the combined exposure from direct plant-related radiation and discharges of liquid and gaseous effluent was 0.17 mrem (shown in Table 2). The annual total dose complies with the EPA's radiation protection standards in 40CFR 190.

Table 2 lists the dose contribution from each component (direct, liquid and gas) to the total body, maximum organ, and thyroid for the limiting member of the public on the mud flats. It should be noted that the gas dose to the total body includes the contribution from noble gas release recorded in the first quarter during the transfer of Spent Fuel to the Transportable Storage Canisters before placement on the ISFSI.

4.0 REFERENCES

1.

"Off-Site Dose Calculation Manual," Maine Yankee Atomic Power Company, Change No. 29, Approved 07/21/04.

2.

Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Release of Reactor Effluents for the Purpose of Evaluating Compliance With I OCFR50, Appendix I," U.S.

Nuclear Regulatory Commission, Office of Standards Development, Revision 1, October 1977.

3.

Regulatory Guide 1.23, "On-Site Meteorological Programs (Safety Guide 23)," U.S. Nuclear Regulatory Commission, Office of Standards Development, February 1972.

4.

Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light - Water - Cooled Reactors," U.S. Nuclear Regulatory Commission, Office of Standards Development, Revision 1, October 1977.

5.

XOQDOQ: "Computer Program for the Meteorological Evaluation of Routine Effluent Releases at Nuclear Power Stations," NUREG/CR-2919, prepared by Pacific Northwest Laboratory for the U.S. Nuclear Regulatory Commission, September 1982.

6.

NUREG-0133, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Piants," U.S. Nuclear Regulatory Commission, Office of Nuclear Reactor Regulation, October 1978.

TABLE 1 Maine Yankee Atomic Power Station Maximum Off-Site Doses/Dose Commitments to Members of the Public from Liquid and Gaseous Effluents for 2004 (10CFR50, Appendix I)

I Dose (mrem) 1st 2nd 3rd 4th Source Quarter Quarter Quarter Quarter Year0')

Liquid Effluen ts.--

Total Body Dose(')

1.9E-03 3.6E-02 6.9E-02 1.IE-04 1.IE-1 Footnotes (1)

(1)

Organ Dose(a) 4.4E-03 7.5E-02 1.7E-01 1.3E-04 2.5E-1 Footnotes (2)

(2)

(3)

A.. b rb.reEffluefits.'..

Organ Dose(a) (Tritium + Part.)

_ 1.5E-04 2.8E-05 ND ND 1.8E-4 Footnotes (4)

(4) is -.

N ob1 1 G ases :'-

_ _en Beta Air(a) (mrad) 3.3E-3 ND ND ND 3.3E-3 Footnotes (5)

Gamma Air(') (mrad) 7.8E-6 ND ND ND 7.8E-6 Footnotes (5)

ND:

No dose determined based on no recorded effluents.

(a)

The numbered footnotes indicate the age group, organ, and location of the dose receptor, where appropriate.

(I)

(2)

(3)

Adult Adult/GI-LLI Adult/Liver (4)

(5)

Child/All Organs/SE, 700 meters 670 meters SE (b)

"Maximum" dose for the year is the sum of the maximum doses for each quarter. This results in a conservative yearly dose estimate, but still well within the limits of 10CFR 50, Appendix 1.

TABLE 2 Maine Yankee Atomic Power Station Maximum Annual Dose Commitments from Direct External Radiation, Plus Liquid and Gaseous Effluents for 2004(a)

(40CFR190)

Pathway Total Body Maximum Organ Thyroid (mrem)

(mrem)

Direct External 6.00E-02 6.OOE-02 6.OOE-02 Liquids 1.07E-01 2.45E-01 7.47E-02 Gases J

3.95E-06 3.95E-06 3.95E-06 Annual Totallb) 1.67E-01 3.05E-01 1.35E-01 (a)

The location of maximum individual doses from combined direct radiation plus dose contributions from liquid and gaseous effluent (including noble gas) corresponds to exposed mud flats at low tide in Bailey Cove, west of the plant site.

(b)

For any member of the public, EPA radiation protection standards (40CFRI90) established annual dose limits of 25 mrem to the total body and any organ (except the thyroid, which has a dose limit of 75 mrem).

TABLE 3 Receptor Locations for Maine Yankee Nearest Milk Nearest Receptor(a)

Nearest Resident(t)

Nearest Garden(b)

Animal(b)

Sector (Meters)

(Meters)

N 450 1260 NNE 800 2230 2400 2650 (cows)

NE 800 1270 1470 ENE 850 920 1250 E

730 900 900 ESE 670 700 SE 670 700 900 SSE 820 900 900 S

1310 1700 1700 SSW 800 3000 5000 SW 500 1500 4000 WSW 450

960 1940 1880 (cows)

W 400 810 2710 WNW 400 1900 NW 400 1930 1930 NNW 500 1060 1180 (a) The nearest receptor location is taken to be the site boundary for all sectors except the NNE through SSW sectors. The actual site boundary for each of these sectors is located next to Back River (water boundary). The receptor locations noted represent the closest dry land points beyond the site boundary where a 100% occupancy time is assumed. Other site boundaries bordered by water, and mud flats exposed at low tides, which may be worked by worm diggers, have occupancy factors applied equal to 325 hour0.00376 days 0.0903 hours 5.373677e-4 weeks 1.236625e-4 months s/year (MY ODCM).

(b) The location(s) given are based on data from the Maine Yankee 2004 Land Use Census.

TABLE 4 Usage Factors for Various Liquid Pathways at Maine Yankee (From Regulatory Guide 1.109, Table E-5, except as noted.

Zero where no pathway exists.)

Age Veg.

Leafy Milk Meat Fish Invert.

Potable Shoreline (kg/y)

Veg.

(I/y)

(kg/y)

(kgly)

Water (hr/y)

(kg/y)

Y(Iy)

Adult 0.00 0.00 0.00 0.00 21.00 5.00 0.00 325.00(a)

Teen 0.00 0.00 0.00 0.00 16.00 3.80 0.00 67.00 Child 0.00 0.00 0.00 0.00 6.90 1.70 0.00 14.00 Infant 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 (a)

Regional shoreline use associated with mud flats - Maine Yankee Atomic Power Station Environmental Report, Supplement Number One, Volume 1, Section 5.2.2, Maine Yankee Atomic Power Company.

TABLE 5 Usage Factors for Various Gaseous Pathways at Maine Yankee (From Regulatory Guide 1.109, Table E-5)

Age Group l

Veg.

l Leafy Veg. J Milk Meat Inhalation

__(kgy)

_ _(kgy)

(a

___)

l_(kgy) l (m3/y)

Adult 520 64 310 110 8,000 Teen 630 42 400 65 8,000 Child 520 26 330 41 3,700 Infant 0

0 330 0

1,400

-II-

TABLE 6 Environmental Parameters for Gaseous Effluents at Maine Yankee (Derived from Regulatory Guide 1.109)

Vegetables Cow Milk Goat Milk Meat

Variable J2Stored Leay Pasture Stored Pasture Stored Pasture Stored YV Agricultural Productivity (kg/r 2)

2.

0.75

2.

0.75

2.

0.75 2.

P Soil Surface Density (kg/m2) 240.

240.

T Transport Time to User (hrs)

48.

480.

TB Soil Exposure Time(a) (hrs) 131400.

131400.

TF Crop Exposure Time to Plume (hrs) 1440.

1440.

720.

1440.

720.

1440.

720.

1440.

TH Holdup After Harvest (hrs) 1440.

24.

0.

2160.

0.

2160.

0.

2160.

QF Animals Daily Feed (kg/day)

50.

6.

50.

FP Fraction of Year on Pasture"'

0.50 0.50 0.50 FS Fraction Pasture Feed When on I

1.

1 Pasture(c)

FG Fraction of Stored Vegetables Grown in 0.76 Garden FL Fraction of Leafy Vegetables Grown in 1.0 Garden l

FL Fraction Elemental Iodine = 0.5 H

Absolute Humidity = 5.6(d)____

(a)

For Method II dose/dose rate analyses of identified radioactivity releases of less than one year, the soil exposure time for that release may be set at 8,760 hours0.0088 days 0.211 hours 0.00126 weeks 2.8918e-4 months (one year) for all pathways.

(b)

For Method II dose/dose rate analyses performed for releases occurring during the first or fourth calendar quarters, the fraction of time animals are assumed to be on pasture is zero (nongrowing season). For the second and third calendar quarters, the fraction of time on pasture (FP) will be set at 1.0. FP may also be adjusted for specific farm locations if this information is so identified and reported as part of the land use census.

(c)

For Method II analyses, the fraction of pasture feed while on pasture may be set to less than 1.0 specific farm locations if this information is so identified and reported as part of the land use census.

(d)

For all Method II analyses, an absolute humidity value equal to 5.6 (gm/r 3) shall be used to reflect conditions in the Northeast (

Reference:

Health Physics Journal, Volume 39 (August), 1980; Pages 318-320, Pergammon Press).

TABLE A W.AYNE YANKEE JAN86-DEC90 METEOROLOGICAL DATA JOINT FREQIJENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCENT) 3.40 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

W1d NW Nrd VRBL TOTAL MPH CALM 41)

(2)

C-3 (1)

(2) 4-7 (1)

(2) 8-12 (1)

(2) 13-18 (1)

(2) 19-24 (11 (2)

CT 24 (11 (2) 0 0

0 0

.00

.00 6

6 16 26 19 8

11 13 10 3

10 1

.44

.44 1.18 1.92 1.40

.59

.81

.96

.74

.22

.74

.07

.02

.04

.07

.05

.02

.03

.01

.03

.00 31 32 64 36 13 2

11 37 125 70 16 21 2.29 2.36 4.72 2.65

.96

.15

.81 2.73 9.22 5.16 1.18 1.55

.08

.16

.09

.03

.01

.03

.09

.31

.18

.04

.05 33 15 23 2

1 0

0 9

41 96 18 12 2.43 1.11 1.70

.15

.07

.00

.66 3.02 7.08 1.33

.88

.08

.04

.06

.01

.00

.02

.10

.24

.05

.03 16 6

3 0

1 0

0 0

3 13 1

6 1.18

.44

.22

.00

.07

.00

.22

.96

.07

.44

.04

.02

.01

.00

.01

.03

.00

.02 4

0 0

0

.29

.00

.01

.00

.00 0

0 0

0

.00

.00 0

0 0

0

.00

.00 2

0 2

1 0

134

.15

.00

.15

.07

.00 9.88

.01

.00

.01

.00

.34 20 10 18 17 0

523 1.47

.74 1.33 1.25

.00 38.57

.05

.03

.05

.04

.00 1.31 26 29 56 63 0

424 1.92 2.14 4.13 4.65

.00 31.27

.07

.14

.16

.00 1.06 3

25 98 56 0

231

.22 1.84 7.23 4.13

.00 17.04

.01

.06

.25

.14

.00

.58 0

2 28 9

0 43

.00

.15 2.06

.66

.00 3.17

.00

.01

.07

.02

.00

.11 0

0 1

0 0

1

.00

.07

.00

.07

.00

.00 ALL SPEEDS 90 59 106 64 34 10 22 59 179 182 45 40 51 66 203 146 0

1356 (1) 6.64 4.35 7.82 4.72 2.51

.74 1.62 4.35 13.20 13.42 3.32 2.95 3.76 4.87 14.97 10.77

.00 100.00 (2)

.23

.15

.27

.16

.09

.03

.06

.15

.45

.46

.11

.10

.13

.17

.51

.37

.00 3.40 (l).PERCENT OF ALL GOOD OBSERVATIONS FOR 'MIS PAGE (2).PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C. CALMI (WIND SPEED LESS THAN OR EQUAL TO.95 MPH)

TABLE B MAINE YANKEE JAN86-DEC0 MEIEOROLOGICAL DATA.OINT FREWENCY DISTRIBUStION 35.0 PT WIND DATA STABILIUY CLASS S CLASS FREQUENCY (PERCENT) 1.44 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

NW INW NNW VRBL TOTAL MPH CALM 41)

(2)

C-3 (1)

(2) 4-7 (1)

(2) 8-12 (1)

(2) 13-18 (1)

(2) 19-24 (1)

(2)

CT 24 (1)

(2) 0 0

0 0

.00

.00 1

2 2

6

.17

.35

.35 1.05

.00

.01

.02 6

14 20 15 1.05 2.44 3.49 2.62

.02

.04

.05

.04 10 8

10 2

1.75 1.40 1.75

.35

.03

.02

.03

.01 4

2 5

1

.70

.35

.87

.17

.01

.00 5

0 0

0

.87

.00

.01

.00

.00 0

0 0

0

.00

.00 0

0 0

0

.00

.00 5

1 3

5 4

1 1

2 0

2 1

2

.87

.17

.52

.87

.70

.17

.35

.00

.35

.17

.35

.01

.00

.01

.00

.01

.00

.01

.00

.01 6

S 5

19 48 27 8

S 7

8 7

10 1.05

.87

.87 3.32 8.38 4.71 1.40

.87 1.22 1.40 1.22 1.75

.02

.01

.05

.12

.07

.02

.01

.02

.03 1

0 0

7 18 36 10 5

13 18 25 30

.17

.00

.00 1.22 3.14 6.28 1.75

.87 2.27 3.14 4.36 5.24

.00

.02

.05

.09

.03

.01

.03

.05

.06

.08 0

0 0

0 4

7 2

4 7

14 36 18

.00

.70 1.22

.35

.70 1.22 2.44 6.28 3.14

.00

.01

.02

.01

.02

.04

.09

.05 0

0 0

1 0

0 0

0 1

3 10 5

.00

.17

.00

.17

.52 1.75

.87

.00

.01

.03

.01 0

0 0

3

.00

.52

.00

.01 0

0

.00

.00 0

38

.00 6.63

.00

.10 0

210

.00 36.65

.00

.53 0

193

.00 33.68

.00

.48 0

104

.00 18.15

.00

.26 0

25

.00 4.36

.00

.06 0

3

.00

.52

.00

.01 0

573

.00 100.00

.00 1.44 ALL SPEEDS 26 26 37 24 12 6

8 32 74 71 21 16 28 45 79 68 (1) 4.54 4.54 6.46 4.19 2.09 1.05 1.40 5.58 12.91 12.39 3.66 2.79 4.89 7.85 13.79 11.87

12)

.07

.09

.06

.03

.02

.08

.19

.18

.05

.04

.07

.11

.20

.17 I1)-PERCENT OF ALL GOOD OBSERVATIONS FOR 7SIS PACE 42)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C. CALM (WIND SPEED LESS THAN OR EQUAL TO

.95 MPH)

TABLE C MINE YANKEE JAN86-DEC90 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABSILITY CLASS C CLASS FREQUENCY (PERCENT) -

4.24 SPEED MPH CALM (1)

(2)

C-3 (1)

(2) 4-7 (1)

(2) 8-12 (1) 42) 13-18 (1)

(2) 19-24 (1)

(2)

GT 24 (1)

(2)

ALL SPEEDS (1)

(2)

N NNE NE ENE 0

0 0

0

.00

.00 5

9 11 11

.30

.53

.65

.01

.02

.03

.03 34 42 54 29 2.01 2.48 3.19 1.71

.09

.11

.14

.07 47 41 26 6

2.78 2.42 1.54

.35

.12

.10

.07

.02 25 10 3

0 1.48

.59

.18

.00

.06

.03

.01

.00 2

2 0

0

.12

.00

.01

.00

.00 0

0 0

0

.00

.00 113 104 94 46 6.67 6.14 5.55 2.72

.28

.26

.24

.12 WIND DIRECTION FROM E

ESE SE SSE S

SSW SW WSW N

IAMW NW NNW VRBL TOTAL 0

0 0

0

.00

,00

.00

.00 11 6

10 11 13 8

5 3

3 2

1 4

0 113

.65

.35

.59

.65

.77

.47

.30

.18

.12

.06

.24

.00 6.67

.03

.02

.03

.02

.01

.00

.01

.00

.28 12 8

21 41 128 72 28 20 22 18 27 45 0

601

.71

.47 1.24 2.42 7.56 4.25 1.65 1.18 1.30 1.06 1.59 2.66

.00 35.50

.03

.02

.05

.10

.32

.18

.07

.05

.06

.05

.07

.11

.00 1.51 4

3 4

16 47 85 28 15 28 61 91 75 0

577

.24

.18

.24

.95 2.78 5.02 1.65

.89 1.65 3.60 5.38 4.43

.00 34.08

.01

.04

.12

.21

.07

.04

.07

.15

.23

.19

.00 1.45 0

0 0

2 5

12 1

5 16 43 119 56 0

297

.00

.12

.30

.71

.06

.30

.95 2.54 7.03 3.31

.00 17.54

.00

.01

.03

.00

.01

.04

.11

.30

.14

.00

.74 0

0 0

1 0

0 0

10 60 17 0

92

.00

.06

.00

.59 3.54 1.00

.00 5.43

.00

.03

.15

.04

.00

.23 0

0 0

4 8

1 0

13

.00

.24

.47

.06

.00

.77

.00

.01

.02

.00

.03 27 17 35 70 193 178 62 43 69 138 306 198 0

1693 1.59 1.00 2.07 4.13 11.40 10.51 3.66 2.54 4.08 8.15 18.07 11.70

.00 100.00

.07

.04

.09

.18

.48

.45

.16

.11

.17

.35

.77

.50

.00 4.24 (1)-PERCENT OF ALL GOOD OBSERVATIONS FOR T7IS PACE (2).PERCENT OF ALL GOOD OBSERVATIONS FOR tMIS PERIOD C-CALM MWIND SPEED LESS THAN OR EQUAL TO.95 MPH)

TABLE D

)AINE YANKEE JAN86-DEC90 METEOROLOGICAL DATA JOINT FREOVENCY DISTRIBnrITCN 35.0 PT WIND DATA STABILITY CLASS V CLASS FREQUENCY (PERCENT) 44.72 WIND DIRECTION PROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

mmW NW SNW VR8L MPH TOTAL CALM (1)

(2)

C-3 (1)

(2) 4-7 (1)

(2) 8-12 (1)

(2) 13-18 (1) 12) 19-24 t1) 12)

CT 24 (1)

(2) 0 0

0 1

1 1

0 0

2 0

0 1

.00

.01

.00

.01

.00

.01

.00

.01

.00

.00 119 97 148 179 218 200 211 266 219 108 113 97

.67

.54

.83 1.00 1.22 1.12 1.18 1.49 1.23

.61

.63

.54

.30

.24

.37

.45

.55

.50

.53

.67

.55

.27

.28

.24 524 497 481 351 234 279 356 739 968 642 469 305 2.94 2.79 2.70 1.97 1.31 1.56 2.00 4.14 5.42 3.60 2.63 1.71 1.31 1.25 1.21

.88

.59

.70

.89 1.85 2.43 1.61 1.18

.76 542 445 255 110 122 129 163 400 653 618 325 150 3.04 2.49 1.43

.62

.68

.72

.91 2.24 3.66 3.46 1.82

.84 1.36 1.12

.64

.28

.31

.32

.41 1.00 1.64 1.55

.81

.38 179 87 33 19 36 33 25 106 244 104 57 23 1.00

.49

.18

.11

.20

.18

.14

.59 1.37

.58

.32

.13

.45

.22

.08

.05

.09

.08

.06

.27

.61

.26

.14

.06 18 3

1 1

S 3

2 11 32 6

1 2

.10

.02

.01

.03

.02

.01

.06

.18

.03

.01

.05

.01

.00

.01

.03

.08

.02

.00

.01 0

0 0

0 2

0 0

1 2

0 0

0

.00

.01

.00

.01

.00

.01

.00

.01

.00

.00 2

2 4

0

.01

.02

.00

.01

.00 105 92 102 109

.59

.52

.57

.61

.26

.23

.26

.27 240 228 267 391 1.34 1.28 1.50 2.19

.60

.57

.67

.98 164 429 705 530

.92 2.40 3.95 2.97

.41 1.08 1.77 1.33 33 245 726 318

.18 1.37 4.07 1.78

.08

.61 1.82

.80 2

52 225 64

.01

.29 1.26

.36

.01

.13

.56

.16 0

3 25 7

.00

.02

.14

.04

.00

.01

.06

.02

.OD0

.00

.000

.00

.00 0

.00

.000

.00

.00 0

.00

.00 0

.00

.00 14

.08

.04 2383 13.35 5.97 6971 39.07 17.47 5740 32.17 14.38 2268 12.71 5.68 428 2.40 1.07 40

.22

.10 ALL SPEEDS 1382 1129 918 661 618 645 757 1523 2120 1478 965 578 546 1051 2054 1419 (1) 7.74 6.33 5.14 3.70 3.46 3.61 4.24 8.54 11.88 8.28 5.41 3.24 3.06 5.89 11.51 7.95 (2) 3.46 2.83 2.30 1.66 1.55 1.62 1.90 3.82 5.31 3.70 2.42 1.45 1.37 2.C3 5.15 3.56 (1)-PERCENT OP ALL GOOD OBSERVATIONS FOR THIS PAGE

2) -PERCENT OP ALL GOOD OBSERVATIONS FOR THIS PERIOD C-CALM (WIND SPEED LESS THAN OR EQUAL TO.95 MPH) 0 17844

.00 100.00

.00 44.72 TABLE E MAINE YANKEE JAN86-DEC90 METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTrION 35.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCENT)

28.88 WIND DIRECTION FROM N

HNE NE ENE E

ESE SE SSE S

SSW SW WSW W

80W NW NW VRBL SPEED MPH CALM (1) 12)

C-3 (1)

(2) 4-7 (1)

(2) 8-12 (1)

(2) 13-18 (1)

(2) 19-24 (11 (2)

CT 24 (1) 42)

TOTAL 7

8

.06

.07

.02

.02 246 215 2.13 1.87

.62

.54 465 281 4.03 2.44 1.17

.70 110 66

.95

.57

.28

.17 26 15

.23

.13

.07

.04 2

1

.02

.01

.00 0

0

.00

.00 1

2 4

.01

.02

.03

.00

.01

.01 204 146 162 1.77 1.27 1.41

.51

.37

.41 152 52 28 1.32

.45

.24

.38

.13

.07 22 7

4

.19

.06

.03

.06

.02

.01 0

0 5

.00

.04

.00

.01 0

0 1

.00

.01

.00

.00 0

0 0

.00

.00 3

4 2

2 2

3 5

7 3

5 7

.03

.02

.03

.04

.06

.03

.04

.06

.01

.02

.01

.02 153 331 497 402 295 258 273 230 234 264 311 1.33 2.87 4.31 3.49 2.56 2.24 2.37 2.00 2.03 2.29 2.70

.38

.83 1.25 1.01

.74

.65

.68

.58

.59

.66

.78 66 147 463 648 618 309 283 236 342 453 484

.57 1.28 4.02 5.62 5.36 2.68 2.46 2.05 2.97 3.93 4.20

.17

.37 1.16 1.62 1.55

.77

.71

.59

.86 1.14 1.21 13 30 117 230 271 75 30 42 140 313 167

.11

.26 1.02 2.00 2.35

.65

.26

.36 1.21 2.72 1.45

.03

.08

.29

.58

.68

.19

.08

.11

.35

.78

.42 14 19 54 96 41 7

1 6

39 92 19

.12

.16

.47

.83

.36

.06

.01

.05

.34

.80

.16

.04

.05

.14

.24

.10

.02

.00

.02

.10

.23

.05 6

15 24 28 4

0 0

1 6

26 0

.05

.13

.21

.24

.03

.00

.01

.05

.23

.00

.02

.04

.06

.07

.01

.00

.02

.07

.00 0

7 14 6

0 0

0 1

0

.00

.06

.12

.05

.00

.01

.00

.02

.04

.02

.00

.00 0

.00

.00 0

.00

.00 0

.00

.00 0

.00

.00 0

.00

.00 0

.00

.00 0

.00

.00 65

.56

.16 4221 36.62 10.58 5027 43.61 12.60 1637 14.20 4.10 434 3.77 1.09 114

.99

.29 28

.24

.07 ALL SPEEDS 856 586 379 207 204 255 553 1171 1412 1231 652 592 522 764 1154 988 (1) 7.43 5.08 3.29 1.80 1.77 2.21 4.80 10.16 12.25 10.68 5.66 5.14 4.53 6.63 10.01 8.57 (2) 2.15 1.47

.95

.52

.51

.64 1.39 2.93 3.54 3.08 1.63 1.48 1.31 1.91 2.89 2.48 (1)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C. CALM (WIND SPEED LESS THAN OR EQUAL TO.95 MPH) 0 11526

.00 100.00

.00 28.88 TABLE F YAINE YANfKEE JAN86-DEC90 MESEOROLOGICAL DATA JOINT FREQUENCY DISTRIBtrrION 35.0 FT WIND DATA STABILITY CLASS F CLASS FREQUENCY (PERCENT) 9.10 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW WM VRBL TOTAL MPH CALM 6

8 9

5 5

3 1

6 3

(1)

.17

.22

.25

.14

.08

.03

.17

.08 (2)

.02

.01

.00

.02

.01 C-3 188 151 158 135 89 78 127 184 166 (1) 5.18 4.16 4.35 3.72 2.45 2.15 3.50 5.07 4.57

12)

.47

.38

.40

.34

.22

.20

.32

.46

.42 4-7 111 45 20 4

0 1

5 22 53 (1) 3.06 1.24

.55

.11

.00

.03

.14

.61 *1.46

42)

.28

.11

.05

.01

.00

.01

.06

.13 8-12 3

0 1

0 0

1 1

8 3

41)

.08

.00

.03

.00

.03

.22

.08 (2)

.01

.00

.02

.01 13-18 0

0 0

(1)

.00

.00 (2

.00

.00 19-24 0

0 0

(1)

.00

.00 (2)

.00

.00 CT 24 0

0 0

(1)

.00

.00 (2)

.00

.00 ALM SPEEDS 308 204 188 144 94 83 134 220 225 (1) 8.48 5.62 5.18 3.97 2.59 2.29 3.69 6.06 6.20 (2)

.77

.51

.47

.36

.24

.21

.34

.55

.56 M1-PERCENT OP ALL GOOD OBSERVATIONS FOR THIS PAGE 12)-PERCENT OF ALL GOOD OBSERVATIONS FOR THlIS PERIOD C-CALM IWIND SPEED LESS THAN OR EQUAL 70

.95 MPH) 6 6

7 11 13 8

7 0

104

.17

.19

.30

.36

.22

.19

.00 2.86

.02

.02

.02

.03

.02

.00

.26 161 113 127 182 194 305 289 0

2647 4.43 3.11 3.50 5.01 5.34 8.40 7.96

.00 72.90

.40

.28

.32

.46

.49

.76

.72

.00 6.63 43 22 50 49 72 134 191 0

828 1.18

.61 1.38 1.35 1.98 3.69 5.43

.00 22.80

.11

.06

.13

.12

.18

.34

.49

.00 2.07 4

3 2

3 4

15 3

0 51

.11

.08

.06

.08

.11

.41

.08

.00 1.40

.01

.04

.01

.00

.13 0

0 0

.00

.00 0

0 0

0 1

0 0

0 1

.00

.03

.00

.03

.00

.00 0

0

.0 0

0 0

0

.00

.00 214 144 186 245 284 462 496 0

3631 5.89 3.97 5.12 6.75 7.82 12.72 13.66

.00 100.00

.54

.36

.47

.61

.71 1.16 1.24

.00 9.10 TABLE G MAINE YANKEE JAN86-DEC90 HETEOROLOOICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 PT IND DATA STABILITY CLASS C CLASS FREQUENCY (PERCENT) 8.22 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNM NW NNW VgBL TOTAL MPH CALM 17 13 1S 12 7

3 6

2 5

8 5

7 11 11 12 9

0 143 (1)

.52

.40

.46

.37

.21

.09

.18

.06

.15

.24

.15

.21

.34

.37

.27

.00 4.36 (2)

.04

.03

.04

.03

.02

.01

.02

.01

.02

.01

.02

.03

.02

.00

.36 C-3 295 257 245 151 65 37 39 45 62 S4 60 69 104 158 467 543 0

2651 (1) 8.99 7.83 7.46 4.60 1.98 1.13 1.19 1.37 1.89 1.65 1.63 2.10 3.17 4.81 14.23 16.54

.00 80.77 (2)

.74

.64

.61

.38

.16

.09

.10

.11

.16

.14

.15

.17

.26

.40 1.17 1.36

.00 6.64 4-7 26 13 2i 7

2 2

0 2

6 8

5 7

14 30 167 175 0

485 (1)

.79

.40

.64

.21

.06

.00

.06

.18

.24

.15

.21

.43

.91 5.09 5.33

.00 14.78 (2)

.07

.03

.05

.02

.01

.00

.01

.02

.01

.02

.04

.08

.42

.44

.00 1.22 8-12 1

0 0

0 1

0 0

0 1

0 0

3 (1)

.03

.00

.03

.00

.03

.00

.09 (2)

.00

.01 13-18 0

0 0

0 (1)

.00

.00 (2)

.00

.00 19-24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 CT 24 0

0 0

0 (1)

.00

.00 (2)

.00

.00 ALL SPEEDS 339 283 281 1?0 74 42 46 49 73 70 70 83 129 199 647 727 0

3282 (1) 10.33 8.62 8.56 5.18 2.25 1.28 1.40 1.49 2.22 2.13 2.13 2.53 3.93 6.06 19.71 22.15

.00 100.00 (2)

.85

.71

.70

.43

.19

.11

.12

.18

.21

.32

.50 1.62 1.82

.00 8.22 (1)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C-CALM IWIND SPEED LESS THAN OR EQUAL TO.95 MPH)

_19-

TABLE H MAINE YANKEE JAN86-DEC9O METEOROLOGICAL DATA JOINT FREQUENCY DISTRIBUTION 35.0 FT WIND DATA STABILITY CLASS ALL CLASS FREOQUECY (PERCErT)

100.00 WIND DIRECTION FROM SPEED N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW MPH CALM 30 29 25 20 17 10 11 10 12 16 14 20 31 29 29 23 (1)

.08

.07

.06

.05

.04

.03

.04

.05

.08

.07

.06 (2)

.08

.07

.06

.05

.04

.03

.04

.05

.08

.07

.06 C-3 860 737 784 654 569 483 732 1021 876 630 560 572 626 682 1142 1259 (1) 2.16 1.85 1.96 1.64 1.43 1.21 1.83 2.56 2.20 1.58 1.40 1.43 1.57 1.71 2.86 3.15 (2) 2.16 1.85 1.96 1.64 1.43 1.21 1.83 2.56 2.20 1.58 1.40 1.43 1.57 1.71 2.86 3.15 4-7 1197 924 812 494 295 363 545 1323 1976 1480 857 691 588 708 1073 1319 (1) 3.00 2.32 2.03 1.24

.74

.91 1.37 3.32 4.95 3.71 2.15 1.73 1.47 1.77 2.69 3.31 (2) 3.00 2.32 2.03 1.24

.74

.91 1.37 3.32 4.95 3.71 2.15 1.73 1.47 1.77 2.69 3.31 8-12 746 575 337 127 132 146 199 557 992 1110 459 214 276 681 1206 868 (2) 1.87 1.44

.84

.32

.33

.37

.50 1.40 2.49 2.78 1.15

.54

.69 1.71 3.02 2.18 (2) 1.87 1.44

.84

.32

.33

.37

.50 1.40 2.49 2.78 1.15

.54

.69 1.71 3.02 2.18 13-18 250 120 44 20 42 47 44 162 352 177 68 39 65 366 1071 467 (1)

.63

.30

.11

.05

.11

.12

.11

.41

.88

.44

.17

.10

.16

.92 2.68 1.17 (2)

.63

.30

.11

.05

.11

.12

.11

.41

.88

.44

.17

.10

.16

.92 2.68 1.17 19-24 31 6

1 1

6 9

17 36 60 11 1

2 4

74 349 95 (1)

.08

.02

.00

.02

.04

.09

.15

.03

.00

.01

.19

.87

.24 (2)

.08

.02

.00

.02

.04

.09

.15

.03

.00

.01

.19

.87

.24 cT 24 0

0 0

0 2

0 7

1s 8

.0 0

0 0

7 35 11 (1)

.00

.01

.00

.02

.04

.02

.00

.02

.09

.03 (2)

.00

.01

.00

.02

.04

.02

.00

.02

.09

.03 ALL SPEEDS 3114 2391 2003 1316 1063 1058 1555 3124 4276 3424 1959 1538 1590 2547 4905 4042 (1) 7.80 5.99 5.02 3.30 2.66 2.65 3.90 7.83 10.72 8.s5 4.91 3.85 3.98 6.38 12.29 10.13 (21 7.80 5.99 5.02 3.30 2.66 2.65 3.90 7.83 10.72 8.58 4.91 3.85 3.98 6.38 12.29 10.13 (1)-PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2).PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C-CALM (WIND SPEED LESS THAN OR EQUAL TO.95 MPH)

VRBL TOTAL 0

326

.00

.82

.00

.82 0

12187

.00 30.54

.00 30.54 0

14645

.00 36.70

.00 36.70 0

8625

.00 21.61

.00 21.61 0

3334

.00 8.35

.00 8.35 0

703

.00 1.76

.00 1.76 0

85

.00

.21

.00

.21 0

39905

.00 100.00

.00 100.00 FIGURE I MAINE YANKEE JAN 1986-DEC 1990 35-FOOT WIND DATA N

W E

S STABILITY CLASS ALL CALM WINDS 0.82%

WIND SPEED (MPH)

NOTE: Frequencies Indicate directlon from which the wind Is blowing.

C-3 4-7 8-12 13-18 19-24 GT24 FIGURE 2 MAINE YANKEE JAN 1986-DEC 1990 197-FOOT WIND DATA N

W E

S STABILITY CLASS ALL CALM WINDS 0.13%

WIND SPEED (MPH)

NOTE: Frequenies Indicate direction from which the wind Is blowing.

C)---==

C-3 4-7 8-12 13-18 19-24 GT24

ML051230425

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