ML17055D181

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Semiannual Radioactive Effluent Release Rept for Jan-June 1987.
ML17055D181
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 06/30/1987
From:
NIAGARA MOHAWK POWER CORP.
To:
Shared Package
ML17055D180 List:
References
NUDOCS 8709030015
Download: ML17055D181 (114)


Text

NINE MILE POINT NUCLEAR STATION UNIT 2 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY JUNE 1987 DOCKET NO.: 50-410 LICENSE NO.: NPF-69 NIAGARA MOHAWK POWER CORPORATION 870+0300 1 5 70828 pgR >JOCK 85000'0 pgp R

NINE MILE POINT NUCLEAR STATION UNIT 2 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY JUNE 1987 Facility: Nine Mile Point Unit ¹2 Licensee: Niagara Mohawk Power Corporation

1. Technical Specification Limits:

A) Fission and activation gases:

1. The dose rate limit of noble gases from the site to areas at and beyond the site boundary shall be less than or equal to 500 mrem/year to the whole body and less than or equal to 3000 mrem/year to the skin.
2. The air dose from noble gases released in gaseous effluents from the Nine Mile Point 2 Station to areas at and beyond the site boundary shall be limited during any calendar quarter to less than or equal to 5 mrad for gamma radiation and less than or equal to 10 mrad for beta radiation and, during any" calendar year to less than or equal to 10 mrad for gamma radiation and less than or equal to 20 mrad for beta radiation.

BSC) Tritium, Zodines and Particulates, half lives ) 8 days:

1. The dose rate limit of Iodine-131, Iodine-133, Tritium and all radionuclides in particulate form with half-lives greater than eight days, released gaseous effluents from the site to areas at or beyond the site boundary, shall be less than or equal to 1500 mrem/year to any organ,
2. The dose to a member of the public from Iodine-131, Iodine-133, Tritium and all radionuclides in particulate form with half lives greater than 8 days as part of gaseous effluents released from the Nine Mile Point 2 Station to areas at and beyond the site boundary shall be limited during any calendar quarter to less than or equal to 7.5 mrem to any organ and, during any calendar year to less than or equal to 15 mrem to any organ.

D) Liquid Effluents

1. The concentration of radioactive material released in liquid effluents to unrestricted areas shall be limited to the concentrations specified in 10 CFR Part 20, Appendix B, Table II, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gas, the concentration shall be limited to 2E-04 microcuries/ml total activity.

D. Liquid Effluents (Cont'd)

2. The dose or dose commitment to a member of the public from radioactive materials in liquid effluents released from Nine Mile Point Unit 2 to unrestricted areas shall be limited during any calendar quarter to less than or equal to 1.5 mrem to the whole body and to less than or equal to 5 mrem to any organ, and during any calendar year to less than or equal to 3 mrem to the whole body and to less than or equal to 10 mrem to any organ.
2. Maximum Permissible Concentrations A) Fission and activation gases:

None specified BRC) Zodines and particulates, half lives > 8 days:

None specified D) Liquid Effluents:

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

Avg MPC ( Jan. March ) = zero Avg MPC ( April June ) = 6,96E-5

3. Average Energy (Fission and Activation gases Mev)

Jan. March: E $ ~ 0; ~E

= 0 Apr. June: E g = 0.996; E~ = 0.608

4. Measurements and Approximations of Total Radioactivity Described below are the methods used to measure or, approximate the total radioactivity and radionuclide composition in effluents.

A) Fission and Activation Gases: Noble gas effluent activity is determined by on-line gamma spectroscopic monitoring (intrinsic germanium crystal) of an isokinetic sample stream.

B) Zodines: Iodine effluent activity is determined by gamma spectroscopic analysis (at least weekly) of charcoal cartridges manually or automatically sampled from an isokinetic sample stream.

C) Particulates: Activity released is determined by gamma spectroscopic analysis (at least weekly) of particulate filters manually or automatically sampled from an isokinetic sample stream.

4. (Cont'd)

D) Tritium: Tritium effluent activity is estimated by liquid scintillation or gas proportional counting of monthly samples taken with an air sparging/water trap apparatus.

E) Liquid Effluents: Isotopic Analysis of a representative sample of each batch.

F) Solid Effluents: Isotopic contents of waste shipments are determined by gamma spectroscopy, gross alpha and water content analyses of a representative sample of each batch. Scaling factors established from primary composite sample analyses conducted off-site are applied, where appropriate, to find estimated concentration of non-gamma emmitters. For low activity trash shipments, curie content is estimated by dose rate measurement and application of appropriate scaling factors ~

5. Batch Releases The following information relates to batch releases of radioactive materials in liquid and gaseous effluents.

A) Liquid 2nd Quarter only as plant was not critical until then.

1. Number of batch releases: 96 (17 with detectable activity)
2. Total time period for batch releases: 330 hours0.00382 days <br />0.0917 hours <br />5.456349e-4 weeks <br />1.25565e-4 months <br /> 12 min.
3. Maximum time period for a batch release: 3 hours 28 min.
4. Average time period for a batch release: 3 hours 26 min.
5. Minimum time period for a batch release: 3 hours 16 mxn.
6. Average stream flow during period of release of effluent into a flowing stream: Not Applicable
7. Total volume of water used to dilute the liquid effluent during release periods : 2.35 E9 liters
8. Total volume of water available to dilute the liquid effluent during reporting period 1.39 E10 liters B) Gaseous (Primary Containment Purge)
1. Number of batch releases: 1
2. Total time period for batch releases: 77.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
3. Maximum time period for a batch release: 77.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
4. Average time period ofr a batch release: 77.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
5. Minimum time period for a batch release: 77.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />
6. Abnormal Releases A. Liquids none B. Gaseous none

TABLE lA 4

SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 42 GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES ELEVATED AND GROUND LEVEL JANUARY JUNE 1987 1st 2nd EST.TOTAL UNIT gUARTRR QUAR?ER ERROR A. Fission S Activation ases

l. Total release ci 1.37E+00 5.0E+01 2 ~ Average release rate for period pCi/sec 1.74E-01 3 ~ Percent of Technical Specification Limit B. Iodines
1. Total iodine-131 Ci
2. Average release rate for period yCi/sec
3. Percent of Technical Specification Limit C. Particulates
1. Particulates with half-lives >8 days ci
2. Average release rate for period pci/sec
3. Percent of Technical Specification Limit 4 ~ Gross alpha radio-activity ci 4.18E-5 D. Tritium
1. Total release ci
2. Average release rate for period yCi/sec
3. Percent of Technical Specification Limit

TABLE 1A (Continued)

SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 82 GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES ELEVATED AND GROUND LEVEL JANUARY JUNE 1st 2nd UNIT t}UARTRR j}UARTER E.~ Percent of Technical S ecification Limits NMP-2 Elevated Release Fission and Activation Gases:

Percent of Quarterly Gamma Air Dose Limit 1.25E-02

2. Percent of Quarterly Beta Air Dose Limit 4.51E-05
3. Percent of Annual Gamma Air Dose Limit to Date 6.23E-03 4, Percent of Annual Beta Air Dose Limit to Date 9.01E-05
5. Percent of Whole Body Dose Rate Limit 4.86E-04
6. Percent of Skin Dose Rate Limit 9.37E-05 Tritium Iodines and Particulates with half-lives reater than 8 da s Percent of Quarterly Dose Limit
2. Percent of Annual Dose Limit to Date
3. Percent of Organ Dose Rate Limit

SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 0'2 GASEOUS EFFLUENTS-ELEVATED (STACK)

JANUARY JUNE CONTINUOUS MODE BATCH MODE Nuclides Released

1. Fission Gases Argon-41 Ci 3o 98E-Ol Krypton-85m Ci Krypton-87 Ci Krypton-88 Ci Xenon-133 Ci Xenon-135 Ci Xenon-135m Ci Xenon-137 Ci 4. 84E-02 Xenon-138 Ci 9. 26E-01
2. Iodines Iodine-131 Ci Iodine-133 Ci Iodine-135 Ci
3. Particulates Strontium-89 Ci Strontium-90 Ci Cesium-134 Ci Cesium-137 Ci Co balt-60 Ci Co balt-58 Manganese-54

'iCi Ci Barium-Lanthanum-140 Ci Antimony-125 Nio bium-95 Cerium-141 Ci Ci Cerium-144 Ci Iron-59 Ci Cesium-136 Ci Chromium-51 Ci Zine-65 Ci Iron-55 Ci

4. Tritium Ci Sr89, 90 and Fe-55 analysis results have not been received yet.

tk TABLE 1C SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 82 GASEOUS EFFLUENTS-COMBINED GROUND LEVEL-ELEVATED (REACTOR BUILDING VENT)

JANUARY - JUNE CONTINUOUS MODE BATCH MODE Nuclides Released

1. Fission Gases Argon-41 Ci Krypton-85m Ci Krypton-87 Ci

'rypton-88 Ci Xenon-133 Ci Xenon-135 Ci Xenon-135m Ci Xenon-137 Ci Xenon-138 Ci

2. Zodines Iodine-131 Ci Iodine-133 Ci Zodine-135 ci
3. Particulates Strontium-89 ci Strontium-90 Ci Cesium-134 Ci Cesium-137 Ci Cobalt-60 ci Cobalt-58 Ci Manganese-54 Ci Barium-Lanthanum-140 Ci Antimony-125 Ci Niobium-95 ci Cerium-141 ci Cerium-144 Ci Iron-59 Ci Cesium-136 ci Chromium-51 Ci Zinc-65 ci Iron-55 ci
4. Tritium ci Sr89, 90 and Fe-55 results have not been received yet.

TABLE 2A SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

'NINE MILE POINT NUCLEAR STATION 02 LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES JANUARY JUNE 1st 2nd Est. Total Unit Quarter Quarter Error A. Fission and activation roducts Total release (not including tritium, gases, alpha) Ci 2.648-3 5.00E+1 2 ~ Average duluted con-centration during reporting period yCi/ml 1.12E-9

3. Percent of applicable limit 7.688-4 B. Tr i tium
l. Total release Ci
2. Average diluted con-centration during reporting period yCi/ml
3. Percent of applicable limit C. Dissolved and entrained ases
l. Total release Ci
2. Average diluted con-centration during reporting period pCi/ml
3. Percent of applicable limit D. Gross al ha radioactivit
1. Total release ci E. Volumes
l. Prior to dilution liters 1. 598+6 . 5. OOE+1
2. Volume of dilution water used during release period liters 2.358+9 5.008+1
3. Volume of dilution water used during reporting period 1 i ters . g. 57E+10 5. OOE+1

TABLE 2A (Continued)

SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

'NINE MILE POINT NUCLEAR STATION 82 LIQUID EFFLUENTS-SUMMATION OF ALL RELEASES JANUARY JUNE 1st 2nd Unit guerter guerter F. Percent of Technical S ecification Limits Percent of Quarterly Whole Body Dose Limit 5.91E-4

2. Percent of Quarterly Organ Dose Limit (GI-LLI) 2.80E-3
3. Percent of Annual Whole Body Dose Limit to Date 2.96E-4
4. Percent of Annual Organ Dose Limit to Date (GI-LLI) 1.40E-3
5. Percent of 10CFR20 Concentration Limit 7.68E-4 6, Percent of Dissolved or Entrained Noble Gas Limit

-10

TABLE 2B RADIOACTIVE EFFLVENT RELEASE SEMI-ANNVAL REPORT (1987)

NINE MILE POINT NUCLEAR STATION 42 LIQUID EFFLUENTS RELEASED JANUARy' JUNE CONTINVOUS MODE BATCH MODE Nuclides Released Strontium-89 ci Strontium-90 Ci Cesium-134 Ci Cesium-137 Ci Iodine-131 ci Cobalt-58 ci 8.59E-4 Cobalt-60 Ci Manganese-54 ci Chromium-51 Ci 1.15E-3 Zirconium-niobium-95Ci Barium-lanthanum-140Ci Tungsten-187 Ci Arsenic-76 Ci Iodine-133 Ci Iron-59 Ci Iron-55 Ci Neptunium-239 Ci Praseodymium-144 ci Iodine-135 Ci I Dissolved or Entrained GasesCi Manganese-56 ci 5.94E-4 Sodium-24 Ci 3.61E-5 Technetium-99m ci 2.68E-6 Molybdenum-99 ci 3.04E-6

-11

TABLE 3A SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

'NINE MILE POINT NUCLEAR STATION 82 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. Solid Waste Shi ed Off-Site for Burial or Dis osal Not irradiated fuel Est.Total

1. Class of Waste JANUARY - JUNE Error
a. Class A None
b. Class B None
c. Class C None

-12

TABLE 3A (Continued)

SEMI-ANNUAL dADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION //2 SOLID WASTE AND IRRADIATED FUEL. SHIPMENTS

2. Estimate of Ma or Nuclide Com osition ( e of Waste)
a. Evaporator Bottoms Resins Filter Media Cobalt-60 Cesium-137 Manganese-54 Iron-55 Cobalt-58 Lanthanum-140 Barium-140 Cr-51 Ces ium-134 Other
b. Dry Compressible Waste, Contaminated Components Nuclide Percent Cobalt-60 Cesium-137 Iron-55 Manganese-54 Nickel-63 Cesium-134 Other
c. Contaminated Oil Nuclide Percent Tritium Cesium-137 Cobilt-60 Other
3. Solid Waste Dis osition Number of Shi ments Mode Des t inst ion None

-13

I '~"'I'N".e, 'N iN"".NN")a+",r""i"N):8 ':, NA"' '", .'.,'dC ~'~N'~le'N4 N,' ', N, "."'I ia't'iNiN".""I~ 'e, TABLE 3A (Last Page)

SEMI-ANNUAL RADIOACTIVE EPPLUENT RIDGE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 82 SOLID WASTE AND ItMADIATEO PUEf, SHIPMENTS 4, Irradiated Reactor Components Disposition

a. Number of Shi ments Mode Destination None
5. Irradiated Pue1 Shipments Disposition Number of Shi ents Mode Destination None

-14 j NN N ~

- . N I, ~'

TABLE 4 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987)

NINE MILE POINT NUCLEAR STATION 8 2 HOURS AT EACH WIND SPEED AND DIRECTION JANUARY - JUNE See attached pages

0 h

HIAGARA MOHAWK POWER CORPORATION WIHD SPEEDi WIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITEI HINE MILE POINT MAIN TOWER PARAMETERSi WSPL, WDRL AND TDFU JAHUARY 1, 1987 TO MARCH 31, 1987 STABILITY CLASS ALL

% FREQUENCY (Hp. OF OCCVRENCES) OF WIND DIRECTIOH WITHIN WIHD SPEED CATEGORY

~RKQTIOH 8-12 SPEED 13-18 (MPH)

P 19-2 )24 H 0.3 ( 5) 1.3 ( 26) 3,2 ( 64) 2.1 ( 0.2 ( 0.1 ( 2) 7. 1 ( 142)

NHE 0.5 ( 10) 2.7 ( S4) 4.1 ( 82) 1.7 ( 0.1 ( 2) 0.0 ( 0) 9.2 ( 182)

NE 0.5 ( 9) 4.0 ( 79) 2.2 ( 44) 0.4 ( 0.0 ( 0) 0.0 ( 0) 7.0 ( 14O)

EHE 1.0 ( 20) 1.6. ( 31) 0.0 ( 0) 0.0 ( p) 0.0 ( 0) 0.0 ( 0) 2.6 ( 51)

E 0.9 ( 18) 1.4 ( 28) 0.1 ( 1) 0.0 ( p) 0;0 ( 0) 0.0 ( 0) 2.4 (

ESE 0.9 ( 18) 4 0 ( 79) 1,7 ( 34) 0 5

~ ( 10) 0.0 ( 0) 0.0 ( 0) 7.1 (

SE 1.1 ( 21) 3.9 t 78) 2,4 ( 47) 0.5 ( g) 0.0 ( 0) 0.0 ( 0) 7.8 ( 155)

SSE 0.8 ( 16) 3.4 ( 68) 1.8 ( 35) 0.6 ( 11) 0.0 ( 0) 0,0 ( 0) 6.5 ( 130)

S 0.6 ( 12) 3.2 ( 1.3 ( 2,5) 0.2 ( 0.0 ( 0) 0.0 ( 0) 5.2 ( 103)

SSW 0.7 ( 14) 1 9

~ ( 38) 1.1 ( 21) 0.3 ( 0.0 ( O) 0.0 ( 0) 4.0 ( 79)

SW 0.5 ( 9) 2.1 ( 42) 1.7 ( 34) 1.2 ( 0.1 ( 1) 0.0 ( 0) 5.5 ( 110)

WSW 0,2 ( 4) 0.8 ( 15) 2.6 ( 51) 1.3 ( aS) 0.2 ( 0.7 ( 13) 5.6 ( 112)

W 0.2 ( 4) 1 2 ( 24) 0.6 ( 12) 16 ( 31) 1.1 ( 21) 1.8 ( 35) 6.4 ( 127)

WHW 0.2 ( 4) O.4 ( 8) 1.8 ( 35) 2.0 ( 4p) 1.7 ( 33) '1.0 ( 19) 7-. 0 ( 139)

HW 0.2 ( 3) 0.9 ( 17) 2.7 ( 53) 2,9 ( 57) 2.2 ( 0.5 ( 10) 9.2 ( 183)

HNW 0.3 ( 6) 0.8 ( 15) 2.6 51) 2.8 ( SS) 0.6 ( PE 4 ( 8) 7.4 147)

TOTAL 8.7 ( 173) 33.5 ( 66S) 29.6 ( 589) 17.9 ( 6.0 ( 119) 4 87) 99.9 ( 1988)

FOR STABILITY CLASS - ALL NUMBER OF POSSIBLE HOURLY OBSERVATIONS'988 NUMBER OF MISSING WIND OBSERYATIOHSI NUMBER OF CALM HOURS~

HIAGARA MOHAWK POMER CORPORATIOH MIND SPEED WIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi HIHE MILE POIHT MAIN TOWER PARAMETERS'SPLi MDRL AHD TDFU JAHUARY 1, 1987 TO MRCN 31, 1987 STABILITY CLASS A

/e FREQUENCY (NO. OF OCCUREHCES) OF MIND DIRECTIOH WITHIH MIND SPEED CATEGORY SPEED (tiPH)

~amTIOH 08- 2 13- 8 1 -23 H 0.0 ( 0) 0.0 ( 0) 0.4 ( 8) 0.1 ( 1) 0.0 .( 0) O.1 ( 1) 0.5 ( 1O)

HHE HE 0.0 0.0

(

(

0) 0)

01(

0.1 (

1) 2)

0.6 0.1

(

(

12) 0.5 0.0

(

(

10) 0)

0.1 0.0

(

(

1) 0)

0.0 0.0

(

(

0) 0)

1.2 0.2

(

(

24)

EHE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) O.'O ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0,0 ( 0)

ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( p) 0.0 ( 0) 0.0 ( 0) 0.'0 ( 0) 0.0 ( 0)

SE 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) O.O ( 0) 0.0 ( p)

SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) O.o ( 0) 0.0 ( 0)

S 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SSM 0,0 ( 0) 0.0 ( 0) 0.0 ( p) 0.0 ( 0) 0.0 ( 0) O.n 0) 0.0 ( 0)

SM 0,0 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) O.O ( 0) 0,0 ( 0)

MSM 0,0 ( 0) 0.0 ( 0) 00 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6) 0.3 ( 6)

M 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) O.3 ( 6) 0.3 ( 6)

MHM 0.0 ( 0) 0.0 ( 0) o.o ( o) 0.0 ( 0); 0.1 ( 1) 0,0 ( ~

0) 0.1 (

HM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 3) O.1 ( 2) 0.3 ( 5)

HHM 0.0 ( 0) 0.0 ( 0) 0.2 ( 0.1 ( 1) 0.2 (. 4) O.2 ( 3) 0.6 ( 11)

TOTAL 0.0 ( 0) 02( 3) 1.3 ( 25) 0.6 ( 12) 0.5 ( 9) O.9 ( 18) 3.4 (

FOR STABILITY CLASS -A HU11BER OF POSSIBLE HOURLY 67 OBSERVATIONS'INDER OF HISSING MIND OBSERVATIONS~

HUl1BER OF CALM HOURS<

I I

'I

NIAGARA MOHAWK POMER CORPORATION WIND SPEEDr MIND DIRECTION AND ATMOSPHERIC STABILITY JOIHT FREQUEHCY DISTRIBUTIOH SITEi HIHE NILE POINT MAIN TOWER PARAHETERSI MSPLe MDRL AHD TDFU JANUARY 1t 1987 To MARCH 3'ln 1987 STABILITY CLASS B A FREQUENCY (NO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIH WIHD SPEED CATEGORY SPEED (MPH)

~QRKG TIOH 8- 2 3- 8 19-23 H 0.0 0) 0.1 ( 2) 0.4 ( 8) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.7 ( 13)

HHE 0.0 ( 0) 0,1 ( 1) 0.4 ( 8) 0 4 ( 8) 0 0 ( 0) 0.0 ( 0) 0.9 ( 17)

HE 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1)

EHE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 { 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( O)

ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0.0 ( O)

SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( O)

S 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( O)

SSM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( O)

SW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 O)

MSM W

0.0 (

0.0 (

0) 0)

0.0 0.0

(

(

0) 0)

0,0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

0.0 0.1

(

(

0) 1)

01(

01( 1) 1)

0.1 0.1

(

( 2)

MHM 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 2) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 1) 0.1 1) 0'.0 ( 0) 0.2 ( 3)

HW HHM TOTAL 0.0 (

0.0 (

0) 0)

0.1 02( (

1) 4)

0.1 (

1.0 ( 20) 0 2 (

0.8 (

4) 16) 0 0 0.2

(')

(

(

0) 3)

01(

0.3 (

1) 5)

0.4 2.4 (

8) 48)

FOR STABILITY CLASS B HUHBER OF POSSIBLE HOURLY OBSERVATIONS<

HlNBER OF MISSING WIND OBSERVATIONS>

HUHBER OF CAW HOURS~

i, e

HIAGARA MOHAWK POWER CORPORATIOH WIND SPEEDi WIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITE< HINE MILE POINT MAIH TOWER PARAMETERS~ WSPL. WDRL AND TDFU JANUARY 1. 1987 TO MARCH 31 1987 STABILITY CLASS C 7 FREQUENCY (NO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIN WIHD SPEED CATEGORY SPEED (MPH)

~lgQTIOH 8- 2 3-18 9-23 H 0.0 ( 0) 0.0 ( 0) 0.2 ( 0) 0,2 ( 0) 0.0 ( 0) 0.0 ( 0) 0.9 ( 8)

HNE HE 0.0 (

0.0 (

0) 0)

01(

0.3 (

1) 5)

0.3 0.2

(

(

5) 3)

0.3 0.0

(

(

6) 0)

0.1 0.0

(

(

1).

0) 00 (

0 0 (

0) 0)

0.7 0.4

(

(

13) 8)

ZHE 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 00 ( 0)

ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 00 ( 0)

SE 0.0 ( 0) 0 0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1)

SSE 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1)

S SSW 0.0 (

0.0 (

0) 0)

01(

0.0 (

1) 0)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

0.0 0.0

(.

(

0) 0)

0.0 (

0.0 (

0) 0)

0.1 0.0

(

(

1) 0)

0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( .0) 0.0 ( 0)

SW WSW W

0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

0.0 0.1

(

(

0) 1)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

01(

0.1 (

1) 1)

0.1 0.1

(

(

1) 2)

WHW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 00 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.2 ( 3) 0.1 ( 1) 0.0 ( 0) 0.3 ( 5)

HW NNW TOTAL 0.0 (

0.0 (

0) 0)

0 0 (

O.Q (

0) 7)

0.3 (

1.1 (

6) 22) 0.3 1.0

(

(

6) 19) 0.1 0.2

(

(

2) cI) 01(

0.2 (

1) 3)

0.8 2.8 (

( 15) 55)

.FOR STABILITY CLASS C NUMBER OF POSSIBLE HOURLY OBSERVATIONS~ 55 HUMBER OF MISSIHG WIND OBSERVATIONS<

NUMBER OF CALM HOURS~

L C

NIAGARA MOHAWK POWER CORPORATION WIND SPEED MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE~ NINE MILE POINT MAIN TOMER PARAMETERS> MSPL, WDRL AHD TDFU JANUARY 1, 1987 TO MARCH 31, 1987 STABILITY CLASS D

'A FREQUENCY (HO. OF OCCURENCES) OF MIND DIRECTION MITHIH MIND SPEED CATEGORY SPEED (MPH)

~uKQTIOH 8-12 3-18 9- >24 H

HHE 0.1 (

0.1 (

1) 2)

',92.1

(

(

18) 42) 1.9 (

2.8 (

37) 55) 1.5 0.5

(

(

30) 10) 02 0.0 (

( 3) 0)

0.1 0.0

(

(

1) 0)

4.5 5.5

(

(

90) 109)

HE 0.2 ( 3) 2.3 ( 46) 1.8 ( 36) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 4.7 ( 93) 0.2 ( 3) 0,9 ( 18) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 0) 1.1 (- 21)

EHE E 0.1 ( 2) 0.3 ( 6) 0.0 (- 0) 0.0 ( 0) 0.0 ( 0) 0.0

(

( 0) 0,4 ( 8)

ESE SE 0.0 (

0.1 (

0) 2)

1 0 (

1 5 (

20) 30) 1.3 (

1.6 (

26) 32) 0.4 0.4

(

(

8) 8)

00(

0.0 (

0) 0)

0.0 0.0

(

(

0)

.0) 2'.7 (

3.6 (

54) 72)

SSE 0.1 ( 1) 0.5 ( 9) 0.4 ( 8) 0.5 ( 9) 0.0 ( 0) 0.0 ( 0) ( 27)

S 0 0 (

~ 0) 0.5 ( 10) 0.8 ( 16) 0.2 ( 3) 0 0 ( 0) 0.0 ( 0) 1.5 ( 29)

SSM 0.0 ( 0) 0.7 ( 14) 0.9 ( 17) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 1.9 ( 37)

SW MSM 0.0 (

0.0 (

0) 0)

14 (

0.3 (

28) 5)

1.1 0.8

(

(

21) 16) 1.0 0.5

(

(

20) 10) 01(

02 (

1) 3)

0.0 0.3

(

(

0) 5)

3.5 2.0

(

(

70) 39)

W MHM 0.1 (

0.0 (

1) 0)

03(

0,1 (

5) 2)

0.3 1.6

(

(

6) 32) 0.9 1.8

(

(

18) 35) 0.8 (

1.2 (

15)

23) 0.8

(

(

22) 16) 3,4 5.4

(

(

67) 108)

HM 0.0 ( 0) 0.6 ( 12) 2.3 ( 45) 2.5 ( 50) 1 9 ( 38) 0.4 ( 8) 7'.7 ( 153)

NNM 0.2 ( 4) 05 ( 10) 1.6 ( 32) 2.2 ( 43) 0.2 ( 4) 0.2 ( 3) 4.8 ( 96)

TOTAL 1.0 ( 19) 13.8 ( 275) 19. 1 ( 379) 13.0 ( 258) 4.4 ( 87) 2.8 ( 55) 53.9 ( 1073)

FOR STABILITY CLASS D NUBBER OF POSSIBLE HOURLY OBSERVATIONS< 1073 NUMBER OF ICISSING WIHD OBSERVATIONS>

HUHBER OF CAM HOURS'

0 HIhGARA MOHAWK POMER CORPORATIOH MIND SPEED, MIND DIRECTION AHD ATl10SPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi HIHE MILE POIHT HAIN TOMER PARAMETERS'SPL, MDRL AND TDFU JANUARY 1, 1987 TO NARCH 31, 1987 STABILITY CLASS E 4 FREQUENCY (HO. OF OCCURENCES) OF WIHD DIRECTION MITHIH WIHD SPEED CATEGORY SPEED (MPH)

~~TIOH 3- 8 9-23 H 0,1 ( 1) 0.2 ( 3) 0.2 ( 3) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8)

HHE 0.1 ( 2) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.5 ( 10)

HE 0.1 ( 2) 0.8 ( 16) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.0 ( 20)

ENE 0.5 ( 9) 0.7 ( 13) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.1 ( 22)

E 0.4 7) 0.8 ( 15) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0,0 ( '0) 1,2 ( 23)

ESE 0,2 4) 1.7 ( 34) 0.4 ( 8) 0.'I ( 2) 0.0 ( 0) 0.0 ( 0) 2,,4 ( 48)

SE 0,2 3) 1.7 ( 33) 0,7 ( 14) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 2.6 ( 51)

SSE 0.2 ( 3) 1.6 ( 32) 1.2 ( 24) 0.1 ( 2) 0 0 ( 0) 0 0 ( 0) 3.1 ( 61)

S 0.1 2) 1.7 ( 33) 0.5 ( 9) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 2.2 ( 44)

SSW 0.1 ( 2) 0.8 ( 16) 0.2 ( 4) .0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.1 ( 22)

SW 0.2 3) 0.5 ( 10) 0.7 ( 13) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 1.5 ( 30)

MSW 0.1 2) 0.5 ( 9) 1.6 ( 31) 0.4 ( 8) 0,1 ( 1) 0.0 ( 0) 2.6 ( 51) 0.1 2) 0.5 ( 10) 0.3 ( 5) 0.7 ( 13) 0.3 ( 5) 0.3 ( 5) 2.0 40)

MHW 0.1 ( 1) 0.2 ( 4) 0.2, ( 3) 0.3 ( 5) 0.4 ( 8) 0.1 ( 1) 1.1 ( 22)

HW 0.2 3) 0.2 ( 3) 0.2 ( 3) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12)

HNM 0.1 ( 1) 0.1 ( 1) 0.2 ( 3) 0.1 ( 1) 0.1 ( 2) 0.0 ( 0) 0.4 ( 8)

TOTAL 2.4 ( 47) 12. 1 ( 240) 6.2 ( 123) 2.0 ( 40) 0.8 ( 16) 0.3 ( 6) 23.7 ( 472)

FOR STABILITY CLASS E NUMBER OF POSSIBLE HOURLY OBSERVATIONS~ 472 NlNBER OF NISSIHG MIHD OBSERVATIONS<

NlNBER OF CAM HOURS~

  • C NIAGARA MOHAWK POWER CORPORATIOH MIND SPEEDp MIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITE~ NINE MILE POINT MAIN TOMER PARAMETERS~ MSPL WDRL AND TDFU JANUARY 1, 1987 TO MARCH 31, -1487 STABILITY CLASS F A FREQUEHCY (HO. OF OCCUREHCES) OF WIHD DIRECTION MITHIH MIHD SPEED CATEGORY SPEED (MPH)

~3'Jg+TIOH 19-23 )20 H 0.1 ( 2) 0.1 ( 1) 0.1 ( 2) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) O.Q ( 8)

NHE 0.1 ( 2) 0.0 ( 0) 0.1 { 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 4)

HE 0.2 ( 3) 0.3 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) O,Q ( 8)

ENE E

0.3 (

0.3 (

6) 6)

00((

0.2 0) 3)

0.0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

0.3 0.5

(

(

6) 9)

ESE 0.1 ( 2) 08 ( 16) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

',7 0 9 ( 18)

SE 0.2 '( 3) 0.5 ( 10) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ( 13)

SSE 0.2 ( 0) 0.% ( 7) 0.1 ( 2) 0.0 ( 0) 00 ( 0) 0,0 ( 0) 0.7 ( 13)

S 0.2 ( 0) 05 ( 10) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 1ii)

SSM 0.9 ( 7) 0.0 ( 7) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 { 0) 0.7 ( 1ii)

SM 0.2 ( 3) 0.2 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) O.Q ( 7)

WSW 0,1 ( 1) 0.1 ( 1) 0.2 ( 3) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) O.Q ( 7) 0.0 ( 0) 0.3 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 5)

M WHM HM 0.'I (

0.0 (

1) 0)

01(

01( 2) 1)

0.0 0.2

(

(

0) 3)

0.0 (

0.0 (

0) 0)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

0.2 0 2

(

(

3)

EI)

HHM TOTAL 0.1 (

2.3 (

1) 45) 01(

3.7 (

2) 7Q) 0.2 0.8

(

(

3) 15) 0.0 (

0.3 (

0) 5)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0)

-0) 0,3 7.0

(

(

6) 139)

FOR STABILITY CLASS F HUMBER OF POSSIBLE HOURLY OBSERVATIONS< 139 HUMBER OF MISSING WIHD OBSERVATIONS>

NUMBER OF CALM HOURSI

fl NIAGARA MOHAWK POMER CORPORATIOH MIND SPEEDi WIND DIRECTIOH AHD ATttOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE'INE MILE POINT MAIN TOMER PARAttETERS~ MSPL MDRL AHD TDFU JAHUARY 1, 1987 TO tthRCN 31, 1987 STABILITY CLASS G

'A FREQUENCY (NO. OF OCCUREHCES) OF MIND DIRECTION MITHIN MIND SPEED CATEGORY SPEED (ttPH)

~ERECTION 13- 8 1 -2 H

HHE 0.1 0.2

(

(

1) 4)

01(

01 (

2) 1)

0.1 0.0

(

0) 0.0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

0.3 0.3

(

(

5) 5)

HE KNE 0.1 0.1

(

(

1) 2)

03(

0.0 (

5) 0)

0.0 0.0

(

(

0) 0)

0.0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

0.3 0.1

(

(

~

6) 2)

E 0.2 ( 3) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) O.O ( 0) 0.0 ( 0) 0,4 (

ESE 0.6 ( 12) 05 ( 9) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 1.1 ( 21)

SE 0.7 ( 13) 0.3 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.9 ( 18)

SSE 0.4 ( 8) 1.0 ( 20) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.4 ( 28)

S 0,3 ( 6) 0.5't ( 9) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.8 ( 15)

SSW 0.3 ( 5) 0. ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6)

SM 0,2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.2 (

0,1 1) 0.0, ( 0) 0.1 1) 0.3 5) 0.0 ( 0) 0.0 ( 0) 0.4 7)

WSM M 0.1 0.1

(

(

(

1) 2)

0.2 (

0.0 (

4) 0)

0.0 0.0

(

(

(

0) 0)

0.0 0.0

(

(

(

0).

0) 0.0 (

0.0 (

0) 0)

0.0 (.

0.0 (

0) 0)

0.3 0.1

(

(

(

5) 2)

WHW HW HHW 0.0 0.0

(

(

0) 0)

01(

01( 1) 1)

0.0 0.1

(

(

0) 2)

0.0 0.0

(

(

0) 0)

O.O (

O.O (.

0) 0)

0.0 (

0.0 (

0)

0) 0.1 0.2 (

( 1)

TOTAL 3.1 ( 62) 3.1 ( 62) 0.3 ( 5) 0,3 ( 5) 0.0 ( 0) 0.0 ( 0) 6,7 ( 134)

FOR HOURS')

STABILITY CLASS G NUttBER OF POSSIBLE HOURLY OBSERVATIONS>

NUMBER OF ttISSING WIND OBSERVATIONS>

134 tlUMBER OF CALM

HIAGARA MOHAWK POWER CORPORATION MIND SPEED, MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE'IHE MILE POIHT MAIN TOWER PARAMETERS'SPL AHD MDRL JANUARY 1i 1987 TO MARCH 31m 1987

% FREC)UEHCY (HO. OF OCCUREHCES) OF MIHD DIRECTION WITHIN MIND SPEED CATEGORY

~ j'.g TIOH H 0.2 ( 5) ( 26) 3,0 8-(

2 64)

SPEED 13-18 2.0 (

(MPH)

42) 0.2 19-23

( 5) 0.1 ( 2) 6.7 ( 144)

HHE 0.5 ( 10) 2.5 ( 54) 3.8 ( 82) 1.7 ( 37) 0.1 ( 2) 0.0 ( 0) 8.6 ( 185)

HE 0.5 ( 10) 3.7 ( 79) 2.5 ( 53) 0.6 ( 12) 00 ( 0) 0.0 ( 0) 7'.2 ( 154)

ENE 1.1 ( 23) 1.4 ( 31) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 2.5 ( 54)

E 0.9 ( 19) 1.3 ( 28) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 2.2 (, 48)

ESE 0.9 ( 20) 3.9 ( 83) 1.6 ( 35) 0.5 ( 10) 0.0 ( 0) 0.0 ( 0) 6.9 ( 148)

SE 1.5 ( 32) 4.5 ( 96) 2.5 ( 53) 0.4 ( 9) 0.0 ( 0) 0.0 ( 0) 8.9 ( 190)

SSE 1.0 ( 21) 4,1 ( 87) 1.8 ( 38) 0.5 ( 11) 0.0 ( 0) 0.0 ( 0) 7.3 ( 157)

S 0.6 ( 13) 3,0 ( 65) 1.4 ( 30) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 5.2 ( 111)

SSM 0.7 ( 15) 1,8 ( 38) 1,1 ( 23) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 3.8 ( 82)

SW 0.5 ( 10) 2.0 ( 42) 1.7 ( 36) 1.1 ( 24) 0.0 ( 1) 0.0 ( 0) 5.3 ( 113)

MSW 0.2 ( 5) 0.7 ( 15) ( 51) 1.2 ( 25) 0.2 ( 5) 0.6 ( '13) 5.3 ( 114)

W 0.2 ( 5) 1.2 ( 26) 0.6 ( 12) ( 31) 1 0 ( 22) 1.7 ( 36) 6.2 ( 132)

WNW 0.2 ( 4) 0.4 ( 8) 1.6 ( 35) 1.9 ( 40) 1.5 ( 33) 1.0 ( 22) 6,6 ( 142)

HW 0.1 ( 3) 0.8 ( 17) 2.7 ( 59) 3.1 ( 67) 2.3 ( 49) 0.7 ( 16) 9.8 ( 211)

HNW 0.3 ( 6) 0.7 ( 15) 2,5 ( 54) 2.9 ( 62) 0.7 ( 16) 0,4 ( 8) 7 5 ( 161)

TOTAL 9.4 ( 201) 33, 1 ( 710) 29.2 ( 626) 17.7 ( 379) 6.2 (. 133) 4,5 ( 97) 100.0 ( 2146)

FOR ALL MIND CATEGORIES HUMBER OF POSSIBLE HOURLY OBSERYATIOHSi 2160 NUMBER OF MISSIHG WIND OBSERVATIOHSi HUI'iBER OF CALM HOURS>

NIAGARA MOHAWK POWER CORPORATION WIND SPEED, WIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi HIHE MILE POINT MAIN TOWER PARAMETERS~ WSPUi WDRU AHD TDFU JANUARY- 1i 1987 TO MARCH 31, 1987 STABILITY CLASS A

% FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIN WIND SPEED CATEGORY SPEED (MPH)

~Q~QTIOH 8-12 1 -18 9-23 N 0.0 ( 0) 0.0 ( 0) 0. ( 2) 0.3 ( 6) 0.0 ( 0) 0.1 ( 2) 0.5 ( 10)

HHE 0.0 ( 0) 0 0 ( 0) 0. ( 2) 0.5 ( 10) 0.1 ( 2) 0.5 ( 9) 1.2 ( 23)

HE EHE 0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

0.

0.0

(

(

2) 0)

0.0 0.0

(,

(

0) 0)

0.0 0.0

(

(

0) 0)

0,0 0.0

(

(

0) 0)

0.1 (

0.0 2) 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 00 ( 0) 0.0 ( 0)

SE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 0) 0.0 0) 0.0 0) 0.0 ( 0) 0.0 ( 0)

SSE S 0.0 ( 0) 0 0 ( 0) 0.0

(

( 0) 0.0

(

( 0) 0.0 ("

(

0) 0.0 ( 0) 0.0 ( 0)

SSW 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( .0) 0.0 ( 0)

SW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

WSW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.9 ( 7) O.Q ( 7)

W 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.3 ( 5) 0.3 ( 6)

WHW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

HW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.3 ( 6) 0.4 ( 7)

NNW 0.0 ( 0) 0.0 ( 0) 0.3 ( 5) 0.1 ( 1) 0.1 ( 1) 0.3 ( 5) 0.6 ( 12)

TOTAL 0.0 ( 0) 0 0 ( 0) 0.6 ( 11) 0.9 ( 17) 0.3 ( 5) 1.7 ( 3Q) 3.9 ( 67)

FOR STABILITY CLASS h NUMBER OF POSSIBLE HOURLY OBSERVATIONS~ 67 HUMBER OF MISSIHG WIND OBSERVATIONS~

HUMBER OF CALM HOURS~

Pe,,

HIhGARA MOHAWK POLlER CORPORATIOH MIHD SPEEDr MIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITEi HIHE MILE POINT MAIH TOMER PARAMETERS> MSPU MDRU AHD TDFU JhHUARY 1, 1987 TO MARCH 31 1987 STABILITY CLASS B A FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTIOH MITHIH WIND SPEED CATEGORY SPEED (MPH)

~gJgQTIOH 8-12 13-18 19-23 )2Q H 0.0 0) 0.0 ( 0) 0.2 (- 3) 0.5 ( 9) 0.1 ( 2) 0.2 ( 3) 0.9 ( 17)

HHE 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) 0.1 ( 2) 0.2 ( tl) 0.2 ( 0) 0.6 ( 12)

HE 0.0 ( 0) 0.0 ( 0) 0,0 ( 0') 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

ENE 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

ESE 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 (. 0)

SE SSE 0.0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

00(

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

~

0.0 (

0.0 (

0) 0)

0.0 (

0.0 (

0) 0)

S 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SSW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

WSM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ~ 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 1)

W 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 0) 0.2 ( 0)

WHM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 1)

HM Nt!M 0.0 0.0

(

(

0) 0)

01(

0.0 (

1) 0)

0.1 (

0.1 (

1) 2)

0.0 (

0.2 (

0) 3)

0.1 (

0.2 (

1) 3)

0.1 (

0.1 (

1) 1)

0.2 (

0.5 (

4) 9)

TOTAL 0.0 ( 0) 01( 1) 0.0 ( 8) 0.7 ( 1Q) 0.5 ( 10) 0.8 ( 15) 2.Q ( 98)

FOR STABILITY CLASS -B NUMBER OF POSSIBLE HOURLY OBSERYATIOHSI HUMBER OF MISSIHG MIND OBSERVATIONS~

HUMBER OF CALM HOURS'

NIAGARA MOHAWK POMER CORPORATION WIND SPEEDi WIND DIRECTION AHD ATMOSPHERIC STABILITY JOIHT FREQUENCY DISTRIBUTION SITE~ HINE MILE POINT MAIN TOWER PARAMETERS~ MSPU WDRU AHD TDFU JAHUARY 1 1987 TO MARCH 31, 1987 STABILITY CLASS C A FREQUENCY (HO. OF OCCVREHCES) OF WIND DIRECTION MITHIH WIHD SPEED CATEGORY SPEED (MPH)

QJ3XQTIOX 8-12 13-18~~~

H HHE 0.0 0.0

(

(

0) 0)

0 0 (

0.2 (

0) 3)

0.1 0.1

(

(

2) 1)

0.1 0.2

(

(

2) 4)

01(

0.1 (

2) 2)

01(

0.3 (

2) 5)

0.4 (

0.8 (

8) 15)

HE 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.1 ( 2)

EHE 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0'.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SE 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.1 ( 1)

SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 00 ( 0) 00 ( 0) 0.1 ( 1)

S 0 0

~ ( 0) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1)

SSM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SM 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0)

WSM 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 1)

W 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.1 ( 1) 0.1 ( 2)

WNW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

HM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 4) 0.1 ( 2) 0.1 ( 2) 0.4 ( 8)

HHM 0.0 ( 0) 0.0 ( 0) 0.4 ( 7) 0.2 ( 4) 0.2 ( 3) 0.1 ( 2) 0.8 ( 16)

TOTAL 0.0 ( 0) 0.2 ( 3) 0.7 ( 14) 0.8 ( 15) 0.5 ( 10) 0.7 ( 13) 2.8 ( 55)

FOR STABILITY CLASS -C NUMBER OF POSSIBLE HOVRLY OBSERYATIOHSI HUMBER OF HUl'1BER OF CALM HOURS'5 MISSING MIND OBSERYATIOHS>

0

HIAGARA MOHAWK POWER CORPORATION WIND SPEEDp WIND DIRECTIOH AND ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITE< NINE MILE POINT MAIN TOWER PARAMETERS'SPUi WDRU AHD TDFU JAHUARY 1, 1987 TO MARCH 31t 1987 STABILITY CLASS D A FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTION WITHIN WIND SPEED CATEGORY SPEED (MPH)

~JJEQTIOH 8-12 13- 8 -23 H 0.1 ( 1) 0,4 ( 7) 1.1 ( 21) 1.8 ( 35) 1.3 ( 26) 0.2 ( 3) 4.7 ( 93)

HNE 0.1 ( 1) 0.8 ( 15) 1.3 ( 26) 2.3 ( 46) 1.3 ( 25) 1.2 ( 23) 6.8 ( 136)

HE 0.1 ( 1) 0.7 ( 13) 1.1 ( 21) 0.6 ( 12) 0.2 ( 3) 0.1 ( ~

1) 2.6 ( 51) 0.1 ( 1) 0.2 ( 3) 0.3 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.5 ( 9)

EHE E

ESE 0.0 0.0

(

(

0) 0)

03(

0 1

~

(

5) 2)

0.0 (

0.3 (

0) 5)

0,1 0.9

(

(

1) 18) 0.0 0.3

(

(

0) 6)

0.0 0.4

(

(

0) 8)

0.3 2.0

(

(

6) 39)

SE 0.0 ( 0) 0.7 ( 13) 1.4 ( 27) 1.4 ( 27) 0.8 ( 15) 0.4 ( 7) 4.5 ( 89)

SSE 0.0 ( 0) 0.2 ( 4) 0.5 ( 9) 0,3 ( 6) 0.1 ( 2) 0.6 ( 12) 1.7 ( 33)

S 0.0 ( 0) 0.0 ( 0) 0.6 ( 11) 0.7 ( 14) 0.0 ( 0) 0.0 ( 0) 1.3 ( 25)

SSW 0.0 ( 0) 0 2 ( 3) 0.4 ( 8) 0.6 ( 11) 0.5 ( 9) 0.0 ( 0) 1.6 ( 31) 0.0 ( 0) 0.2 ( 3) 1.4 ( 28) 0.8 ( 15) 1.2 ( 23) 0.4 ( 8) 3.9 ( 77)

SW WSW 0.0 0.0

(

(

0) 0)

01(

0.2 (

1) 3)

0.4 (

0.6 (

8) 12) 0.8 1.1 (

( 15) 21) 0,3 0.6

(

(

6) 11) 0.6 (

1.8 (

12) 35) 2.1 (

4.1 (

42) 82)

W WNW 0.0 ( 0) 0.1 ( 1) 1.5 ( 30) 1.5 ( 29) 1.4 ( 27) 1.5 ( 29) 5.8 ( 116) 0.1 ( 1) 0.4 ( 7) 1.6 ( 31) 1.5 ( 30) 1,8 ( 35) 1.8 ( 35) 7.0 ( 139)

HW HHW 0.1 0.3

(

(

1) 6)

03(

43 (

6) 86) 1.1 (

13.3 (

22) 264) 2.1 (

16. (

41) 321) 1.4 (

10.9 (

28) 216) 0.4 9.0

(

(

7) 180) 5.3 53.

( 105) 9 ( 1073)

TOTAL 1 FOR STABILITY CLASS D HUMBER OF POSSIBLE HOURLY OBSERVATIONS> 1073 NUMBER OF MISSING WIND OBSERYATIONSI HUMBER OF CALM HOURS'

't NIAGARA MOHAWK POWER CORPORATION WIND SPEED WIND DIRECTION AND ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTIOH SITE> HIHE MILE POIHT MADl TOMER PARAMETERS< MSPU, MDRU AHD TDFU JAHUARY 1, 1987 TO MARCH 31t 1987 STABILITY CLASS E

à FREQUENCY (HO. OF OCCURENCES) OF WIND DIRECTIOH WITHIH WIND SPEED CATEGORY SPEED (MPH)

~?3gZTIOH 8- 2 13-18 19- 3 >24 H 0.0 ( 0) 0.1 ( '1) 0,1 ( 2) 0.2 ( 3) 0.1 ( 1) 0,0 ( 0) 0 4 ( 7)

HNE 0.0 ( 0) 0,2 ( 4) 0'.6 ( 12) 0.5 ( 9) 0.1 ( 2) 0.1 ( 1) 1.4 ( ~ 28)

NE 0.1 ( 1) 0.5 ( 10) 0.5 ( 9) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 1.1 ( 21)

EHE 0.0 ( 0) 0.2 ( 3) 0.6 ( 11) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 14)

E 0.1 ( 1) 0.2 ( 3) 0.3 ( 5) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12)

ESE 0.0 ( 0) 0.3 ( 5) 0.8 ( 15) 0.7 ( 13) 0.1 ( 2) 0.1 ( 2) 1,9 ( 37)

SE 0.0 ( 0) 0.2 ( 4) 0.8 ( 16) 1.1 ( 22) 0.6 ( 11) 0. 1 ( 1) 2.'7 ( 54)

SSE 0.0 ( 0) 0.1 ( 2) 0.4 ( 8) 1.2 ( 23) 0.8 ( 16) 0. 1 ( 2) 2.6 ( 51)

S 0.0 ( 0) 0.1 ( 2) 0.8 ( 16) 1.2 ( 24) 0.0 ( 0) 0.0 ( 0) 2.1 ( 42)

SSM 0.0 ( 0) 0.2 ( 3) 0.8 ( 15) 0.1 ( 14) 0.0 (. 0) 0.0 ( 0) 1.6 ( 32)

SM 0.0 ( 0) 0.2 ( 3) 0.5 ( 9) 0.8. ( 16) 0.3 ( 6) 0,1 ( 2) 1.8 ( 36)

MSM 0.0 ( 0) 0.$ ( 3) 0.3 ( 5) 0.9 ( 18) 0.8 ( 15) 0.1 ( 2) 2.2 ( 43)

M 0.1 ( 1) 0.2 ( 4) 0.3 ( 6) 0.4 ( 7) 0.6 ( 11) 0.8 (. 15) 2.2 ( 44)

WHM 0 0

~ ( 0) 0.2 ( 'J) 0.3 ( 6) 0.2 ( 4) 0.2 ( 4) 0.4 ( 8) 1.3 ( 26) ttM 0.0 ( 0) 0.1 ( 2) 0.3 ( 5) 0.2 ( 3) 0.0 ( 0) 0.1 ( 2) 0.6 ( 12)

HttM 0.1 ( 1) 0.3 ( 5) 0.'1 ( 2) 0.2 ( 3) 0.1 '( 2) . 0.1 ( 1) 0.7 ( 14)

TOTAL 0.2 ( 4) 2.9 ( 58) 7.1 ( 142) 8.2 ( 163) 3.5 ( 70) 1.8 ( 36) 23. 8 ( 473)

FOR STABILITY CLASS E NUMBER OF POSSIBLE HOURLY OBSERVATIONS'73 NUMBER OF MISSIHG WIND OBSERVATIONS<

HUMBER OF CALtl HOURSI

AI NIAGARA MOHAWK POWER CORPORATION WIND SPEEDe MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE HIHE NILE POINT tNIH TOWER PARAMETERS'SPUt MDRU AHD TDFU JANUARY 1s 1987 TO tlARCH 31'98'7 STABILITY CLASS F

% FREQUENCY (HO. OF OCCUREHCES) OF MIND DIRECTIOH MITHIH WIHD SPEED CATEGORY SPEED (MPH)

~~FQTIOH 8-12 - 8 19-2 >24 H 0.1 ( 1) 0.0 ( 0) 0.1 ( 2) 0.2 ( 3) 0.1 ( 2) 0.2 ( 4) 0 6 ( 12)

HHE 0.2 ( 3) 0.0 ( 0) 0.5 ( 9) 0 0 ( 0) 0 0 ( 0) 0.1 ( 1) 0.7 ( 13)

HE EHE 0.0 0.0

(

(

0) 0)

0.3 (

0.0 (

5) 0)

0.2 0.2

(

(

3) 3)

0.0 (

0.0 (

0) 0)

0.0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

04(

0.2 (

8) 3)

E ESE 0.0 0.0

(

(

0) 0)

01(

0.1 (

1) 1)

0.4 0.2

(

(

7) 4)

0 0 (

0.2 (

0) 3)

0 0 0.0

(

(

0) 0)

0.0 (

0.0 (

0) 0)

0,4 0 4

(

(

8) 8)

SE 0.0 ( 0) 0 ( 2) 0.2 ( 3) 0 2 ( 4) 0 0 ( 0) 0.0 ( 0) 0.5 ( 9)

SSE S

0.0 0.1

(

(

0) 1)

01(1 0.0 (

1) 0)

0.2 0.1

(

(

3) 1)

0.2 (

0;4 (

4) 8)

0.0 0.1

(

(

0) 1)

0.0 (

0.0 (

0) 0)

04(

0 6 (

8) 11)

SSM 0.0 ( 0) 0.1 ( 2) 0.1 ( 1) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6) 01(

~

SM 0.0 ( 0) 1) 0.2 ( 3) 0.2 ( 3) 0.0 ( 0) 0.0 ( 0) 0.4 ( 7)

WSM 0.0 ( 0) 0,3 ( 5) 0.4 ( 7) 0.1 ( 1) 0.0 ( 0) 0.1 ( 2) 0.8 ( 15)

M 0.1 ( 2) 0.2 ( 4) 0.3 ( 5) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 06 ( 12)

WHM 0.0 ( 0) 0.1 ( 2) 0.1 ( 2) 0.0 ( 0) 0.0 0) 0.0 ( 0) 0.2 ( 4)

HM 0.1 ( 1) 02 ( 4) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 7)

HHM 0.0 ( 0) 0.1 ( 2) 0.0 ( 0) 0 1 ( 2) 0 2 ( 3) 0.1 ( 1) 0.4 ( 8)

TOTAL 0.4 ( 8) 15 ( 30) 2.8 ( 55) 1.6 ( 31) 0.4 ( 7) 0.4 ( 8) 7.0 ( 139)

FOR STABILITY CLASS F HU)1BER OF POSSIBLE HOURLY OBSERVATIONS> 139 NUMBER OF MSSIHG MIHD OBSERVATIONS'UMBER OF CAW HOURSa

NIAGARA MOHAWK POWER CORPORATIOH WIND SPEEDp WIHD DIRECTION AND ATMOSPHERIC STABILITY JOIHT FREQUENCY DISTRIBUTION SITE> HIHE MILE POINT MAIN TOWER PARAIIETERS< WSPUs WDRU AHD TDFV JANUARY 1i 1987 TO MARCH 31 r 1987 STABILITY CLASS G A FREQUENCY (HO. OF OCCUREHCES) OF WIND DIRECTIOH WITHIN WIND SPEED CATEGORY (MPH)

~QKQTIOX 4 7 ~8-12 SPEED 13-18 19-23 H

NHE 0.1 0.1

(

(

2) 1)

0.1 0.2

( 2) 4)

0.0 0.2

(

(

0) 3)

01(

0.2 (

'I) 3)

0.1 0.0

(

(

2) 0)

. 0.1 0.0

(

(

1) 0)

0.4 0 6

(

(

8) 11)

HE 0.1 ( 1) 0.3 5) 0,1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 7)

ENE 0.0 ( 0) 0.1 2) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6)

E ESE 0.1 0.0

(

(

2) 0)

0.3 0.1

(

(

5) 2)

0.3 0.1

(

(

6) 2)

01(

0.1 (

1) 1)

0.0 0.0

(

(

0) 0)

0.0 0 0

~

(

(

0) 0)

0 7 0.3

(

(

14) 5)

SE 0.1 ( 1) 0.1 ( 2) 0.3 ( 5) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8)

SSE 0.2 ( 3) 0.3 ( 6) 0.3 ( 6) 0.1 ( 2) 0.0 (.. 0) 0.0 ( 0) 0 9 ( 17)

S 0.0 ( 0) 0.2 ( 3) 0.0 ( 0) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0)

-0) 02 ( 4)

-SSW 0.1 ( 1) 0.3 ( 5) 0.2 ( 3) 0.1 ( 2) 0.0 (. 0) 0.0 ( 0.6 ( 11)

SW 0.2 ( 4) 0.2 ( 3) 0.2 ( 3) 0.2 ( 3) 0.1 ( 1) 0.0 ( 0) 0.7 ( 14)

WSW 0.1 ( 1) 0.0 ( 0) 0.2 ( 3) 0.2 ( 3) 0.0 ( 0) 0.2 ( 4) 0.6 ( 11)

W 0.0 ( 0) 0.1 ( 1) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 3)

WHW 0.0 ( 0) 0. ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2)

HW 0.1 ( 1) 0,1 ( 2) 0.1 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 02 ( 4)

HNW 0.2 ( 3) 0.2 ( 3) 0.1 ( 1) 00 ( 0) 0.0 ( 0) 0.1 ( 2) 0.5 ( 9)

TOTAL .1.0 ( 20) 2.4 ( 47) 2.0 ( 40) 09 ( 17) 0.2 ( 3) 0.4 ( 7) 6 7 ( 134)

FOR STABILITY CLASS G NUMBER OF POSSIBLE HOVRLY OBSERVATIONS~ 134 NUMBER OF MISSIHG WIHD OBSERVATIONS~

NUMBER OF CALM HOURS'

E1 IX

HIAGARA MOHAWK POWER CORPORATION MIND SPEED, MIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE~ NIHE MILE POIHT MAIN TOWER PARAMETERS'SPUi MDRU AHD TDFU JANUARY 1i 1987 TO STARCH 31'987 STABILITY CLASS ALL

à FREQUENCY (HO. OF OCCURENCES) OF WIND DIRECTIOH WITHIN MIND SPEED CATEGORY SPEED (MPH)

~EMOTION 8-12 13-18 1 -23 >2 H 0.2.( 4) 0.5 ( 10) 1.6 ( 32) 3.0 ( 59) 1.8 ( 35) 0.8 ( 15) 7. 8 ( 155)

HNE 0.3 ( 5) 1,3 ( 26) 2.8 ( 55) 3.7 ( 74) 1.8 ( 35) 2.2 ( 43) 12.0 ( 238)

NE 0.2 ( 3) 1.7 ( 33) 1.9 ( 38) 0.7 ( 13) 0.2 ( 3) 0.1 ( 1) 4.6 ( 91)

EHE 0.1 ( 1) 0.4 ( 8) 1.2 ( 23) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1 6 ( 32)

E 0.2 ( 3) 0.7 ( 14) 0.9 ( 18) 0.3 ( 5) 0.0 ( 0) 0.0 ( 0) 2.0 ( . 40)

ESE 0.0 ( 0) 0.5 ( 10) 1.3 ( 26) 1.8 ( 35) 0.4 ( 8) .0.5 ( 10) 45 ( 89)

SE 0 1

~ ( 1) 1.1 ( 21) 2.6 ( 51) 2.7 ( 53) 1.4 ( 27) 0.4 ( 8) 8. 1 ( 161)

SSE 0.2 { 3) 0.7 ( 13) 1.3 ( 26) 1.8 ( 36) 0.9 ( 18) 0.7 ( 14) 5.5 ( 110)

S 0.1 ( 1) 0.3 ( 5) 1.5 ( 29) 2.4 ( 47) 0.1 ( 1) 0.0 ( 0) 42 ( 83)

SSW 0.1 ( 1) 0.7 ( 13) 1.4 ( 27) 1.5 ( 30) 0.5 ( 9) 0.0 ( 0) 4 0 ( 80)

SW 0.2 ( 4) 0.5 ( 10) 2.2 ( 43) = 1.9 ( 37) 1.5 ( 30) 0.5 ( 10) 6.7 ( 134)

MSW 0.1 ( 1) 0.5 ( 9) 1.2 ( 23) 19 ( 37) 1.1 ( 21) 1.5 ( 29) 6.0 ( 120)

M 0.2 ( 3) 0.6 ( 12) 1.3 ( 26) 1.4 ( 28) 'l.2 ( 24) 3.0 ( 60) 7.7 ( 153)

WNW 0.0 ( 0) 0.5 ( 9) 1.9 ( 38) 1,7 ( 33) 1.6 ( 31) 1.9 ( 38) 7.5 ( 149)

NW 0.2 3) 0.8 ( 16) 2.0 ( 40) 19 ( 37) 2.0 ( 39) 2.3 ( 46) 9. 1 ( 181)

NNW 0.3 ( 5) 0.8 ( 16) 2.0 ( 39) 27 ( 54) 2.0 ( 40) 1.0 ( 19) 8.7 ( 173)

TOTAL 1.9 ( 38) 11.3 ( 225) 26.8 ( 534) 29.1 ( 578) 16. 1 ( 321) 14.7 ( 293) 100.0 ( 1989)

FOR STABILITY CLASS ALL NUMBER OF POSSIBLE HOURLY OBSERVATIONS> 1989 NUMBER OF HISSING MIHD OBSERVATIONS~

NUMBER OF CALM HOURS~

1, NIAGARA MOHAWK POWER CORPORATION WIHD SPEEDi WIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi NINE MILE POIHT MAIN TOWER PARAMETERS'SPU AHD WDRU JANUARY 1, 1987 TO MARCH 31, 1987

% FREQUENCY (NO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIN WIND SPEED CATEGORY SPEED (MPH)

JQJ~QTIOH 8-12 3-18 19-23 )2 H 0.2 ( 4) 0.5 ( 10) 1.5 ( 32) 2.7 ( 59) 1.6 ( 35) 0.8 ( 17) 7.3 ( 157)

HNE 0.2 ( 5) 1.2 ( 26) 2.6 ( 55) 3.4 ( 74) 1.7 ( 37) 2.6 ( 55) 11.7 ( 252)

HE 0.3 ( 6) 1.6 ( 35) 1.8 ( 38). 0.6 ( 13) 0.2 ( 5) 0.0 ( 1) 4.6 ( 98)

EHE 0.0 ( 1) 0.5 ( 10) 1.1 ( 23) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.6 ( 34)

E 0.2 ( 4) 0.8 ( 17) 0.9 ( 20) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 2.1 ( 46)

ESE 0.0 ( 1) 0,7 ( 15) 1.4 ( 29) 1.6 ( 35) 0.4 ( 8) 0.5 ( 10) 4.6 ( 98)

SE 0.1 ( 2) 'l.1 ( 23) 2.7 ( 57) 3.1 ( 66) 1.3 ( 27) 0.4 ( 8) 8.5 ( 183)

SSE 0.2 ( 4) 0.7 ( 16) 1.4 ( 30) 1.9 ( 41) 0.9 ( 19) 0.7 ( 14) 5.8 ( 124)

S 0.3 ( 6) 0.3 ( 6) 1.4 ( 29) 2.2 ( 48) 0.2 ( 4) 0.0 ( 0) 4.3 ( 93)

SSW 0.0 ( 1) 0.7 ( 14) '1,3 ( 28) 1.5 ( 32) 0.4 ( 9) 0.0 ( 0) 3.9 ( 84)

SW 0.2 ( 5) 0.6 ( 13) 2.0 ( 44) 1.9 ( 40) 1.4 ( 30) 0.5 ( 10) 6.6 ( 142)

WSW 0,1 ( 2) 0.5 ( 11) 1.1 ( 23) 1.7 ( 37) 1.0 ( 21) 1.4 ( 30) 5.8 ( 124)

W 0.1 ( 3) 0.7 ( 15) 1.2 ( 26) 1.3 ( 28) 1.1 (. 24) 2.9 ( 63) 7.4 ( 159)

WNW 0.0 ( 1) 0.5 ( 11) 1,8 ( 38) 1.7 ( 36) 1.4 ( 31) 1.9 ( 41) 7.4 ( 158)

HW 0.2 ( 5) 0.7 ( 16) 2.0 ( 43) 2.2 ( 48) 2.1 ( 46) 2.7 ( 58) 10. 1 ( 216)

HNW 0,2 ( 5) 0.7 ( 16) 1.9 40) 2.6 56) 1.9 ( 41) 1.0 ( 21) 8.3 ( 179)

TOTAL 2,6 ( 55) 11,8 ( 25'4) 25.9 ( 555) 28.8 ( 618) 15.7 ( 337) 15. 3 ( 328) 100.0 ( 2147)

FOR ALL WIHD CATEGORIES NUMBER OF POSSIBLE HOURLY OBSERVATIONS> 2160 HUMBER OF CALM HOURS'3 OF.MISSING WIHD OBSERVATIONS'UMBER

NIAGARA MOHAWK POMER CORPORATIOH MIHD SPEEDi WIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi NINE MILE POINT MAIN TOWER PARMETERSi WSPL WDRL AHD TDFU APRIL 1 1987 TO JUHE 30 1987 STABILITY CLASS B A FREWEHCY (HO. OF OCCUREHCFS) OF WIND DIRECTIOH MITHIN MIND SPEED CATEGORY SPEED (MPH) 8- 2 3-18 19-23 H 0.0 ( 0) 0 ? ( 4) 0.0 ( 1) 0.1 ( 2) 0.0 ( 0) 0.0 ( 1) 0 ( 8)

HHE 0.0 ( 0) 0.2 ( 5) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8)

HE o.'o ( 0) 0. 1'( 2) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.2 ( 4)

EHE 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 '(( 0.0 0) 0.0 0) 0.0 ( 0.0 (

E ESE 0.0 0) 0)

0.0 (

0.0 (

0.0 (

0)

0) 0.0

(

( 0) 0.0 0.0

(

( 0) 0.0 (

0.0 (

0) 0)

0) 0.0 0.0 0.0

(

0) 0)

0)

'.0 0.2 (

(

0) 0)

SE 0.0 ( 0) 0) 0.1 ( 3) ( 1) ( 4)

SSE o.'o ( 0) 0 0 ( 0) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0,3 ( 6)

S 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SSM 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 00 ( 0) 0 0 (

~ 0)

WSM 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 1)

M 0 0 (

~ 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

MHW 0.1 ( 2) 0.0 ( 0) 0.0 ( 1) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.2 ( 4)

HW 0.0 ( 0) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6)

HHM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

TOTAL 0.1 ( 2) 0.8 ( 17) 0.8 ( 17) 0.2 ( 4) 0.0 ( 0) 0.0 ( 1) 2.0 ( 41)

FOR STABILITY CLASS B HUllBER OF POSSIBLE HOURLY OBSERVATIONS>

NUMBER OF 11ISSIHG MIHD OBSERVATIONS'UHBER OF CAM HOURS>

HIAGARA MOHAWK POWER CORPORATION WIND SPEEDi WIHD DIRKCTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE< HIHE MILE POINT MAIH TOWER PARAMETERS'SPL WDRL AHD TDFU APRIL 1, 1987 TO JUNE 30, 1987 STABILITY CLASS - C A FREQUENCY (XO. OF OCCUREHCES) OF WIND DIRECTION WITHIH WIND SPEED CATEGORY SPEED (MPH) 8-12 13-18 19-23 H 0.0 ( 0) 0.3 ( 6) 0.1 ( 2) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0)- 0.4 ( 9)

HHE 0.0 ( 0) 0 1 ( 2) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 4)

HE 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 1)

ENE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0)

E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0)

ESE 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.2 ( 5)

SE 0.0 ( 0) 0,0 ( 1) 0.2 ( 4) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 02 ( 5)

SSE 0.0 ( 0) 0 0 ( 0) 0.3 ( 7) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8)

S 0.0 ( 0) 0.0 ( 0) 0.2 ( 4) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.2 ( 4)

SSW 0.0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0)

SW 0.0 ( 0) 0.0, ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.2 ( 5) 0.1 ( 2) 0.0 ( 0) 0.4 ( 8)

WSW W 0.0 0.0

( 0) 0)

0.0 ( 1) 3)

0.0 0.0

( 1) 0)

00( 0) 0)

02( 5) 0.0 (

0.0 (

0) 0)

0.3-(

0.2 (

7) 4)

WHW NW NNW TOTAL 0.0 0.0 0.0

(

(

(

(

0) 0)

0) 0 1 (

0.0 (

0.1 (

0.9 (

1) 3)

18) 0.0 0.0 1.3 (

(

(

(

27) 0 0 (

1)00(0)00(

0) 0.0 0.3

(

(

0) 7)

0 0 (

0.0 0.4

(

(

1) 0)

0) 8)

'.00.0 (

0.0

(

0) 0)

0) 0.0 (

0.2 (

2,9 (

1) 4)

60)

FOR STABILITY CLASS C NUMBER OF POSSIBLE HOURLY HOURS'0 OBSERVATIONS'UMBER OF MISSIHG WIND OBSERVATIONS<

NUMBER OF CALM

NIAGARA MOHAWK POWER CORPORATION WIHD SPEED, WIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE~ HIHE MILE POIHT MAIN TOWER PARAMETERS'SPLs WDRL AHD TDFU APRIL 1t 1987 TO JVHE 30'987 STABILITY CLASS D A FREQUENCY (HO. OF OCCUREHCES) OF WIND DIRECTION WITHIH WIND SPEED CATEGORY SPEED (MPH) 8- 2 3- 8 19-23 >24 H 0.1 ( 3) 0.6 ( 13) 0.3 ( 6) 0.1 ( 3) 0.0 ( 0) 0.0 ( 1) 1.2 ( 26)

HHE 0.1 ( 3) 1.2 ( 25) 0.8 ( 16) 0.0 ( 0) 0.'0 ( 0) 0.0 ( 0) 2.1 ( 44)

HE 0.4 ( 8) 2.3 ( 48) 0.8 ( 17) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 3.7 ( 76)

ENE 0.1 ( 3) 0.7 ( 14) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.9 ( 19)

E 0.0 ( 1) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5)

ESE 0.1 ( 2) 0.7 ( 14) 1.4 ( 29) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 2.2 ( 45)

SE 0.1 ( 3) 2.1 ( 43) '2.4 ( 49) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 4.7 ( 98)

SSE 0.0 ( 1) 0.9 ( 18) 2.0 ( 42) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 3.2 ( 67)

S 0.1 ( 2) 0.4 ( 9) 1.5 ( 31) 0.'3 ( 6) 0.0 ( 0) 0.0 ( 0) 2.3 ( 48)

SSW 0.0 ( 0) 0.3 ( 6) 0.2 ( 5) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12)

SW 0.0 ( 1) 0.4 ( 9) 0.5 ( 11) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 1.1 ( 23)

WSW 0.0 ( 1) 1.?. ( 24) 3.8 ( 80) 1.1 ( ?3) 0.2 ( 5) 0.0 ( 0) 6.4 ( 133)

W 0.0 ( 1) ( 23) 1.2 ( 25) 1.2 ( 26) 0.7 ( 14) 0.6 ( 12) 4.9 ( 101)

WHW 0.1 ( 2) 0.3 ( 6) 0.3 ( 7) 0.4 ( 8) 0.0 ( 1) 0.2 ( 4) 1.3 ( 28)

HW 0.1 2) 0.3 ( 6) 0.1 ( 3) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12)

HHW 0.0 ( 1) 0,3 ( 6) 0.1 ( 3) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.5 ( 11)

TOTAL 1.6 ( 34) 12.9 ( 268) 15.7 ( 326) 4.0 ( 83) 1.0 ( 20) 0.8 ( 17) 35.9 ( 748)

FOR STABILITY CLASS D NUMBER OF POSSIBLE HOURLY OBSERVATIONS~ 748 HUMBER OF MISSING WIHD OBSERYATIOHSi HUl)BFR OF CALM HOURS'

tg>

NIAGARA MOHAMK POMER CORPORATION MIND SPEEDi MIND DIRECTION AHD ATOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE< HIHE NILE POINT MAIN TOMER PARNIETERSi MSPLi WDRL AHD TDFU APRIL 1, 1987 TO JUHE 30'987 STABILITY CLASS E

                  'A FREQUENCY (HO. OF OCCURENCES)  OF MIND DIRECTIOH   MITHIN MIHD SPEED CATEGORY SPEED   (}}PH) 8- 2         13-18              1 -23           >2 H

HHE 0.1 0.1 ( ( 2) 3) 0.7 ( 1.2 ( 15) 25) 0.6 ( 0.2 ( 13) 5) 0.} 00 ( ( 3) 0) 0.0 0.0 ( ( 0)'.0

0) 0.0

( ( 0) 0) 1.6 ( 1.6 ( 33) 33) HE 0.4 ( 9) 2.4 ( 49) 0.4 ( 8) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 3.2 ( 67) EHE 0.5 ( 10) 0.6 ( 13) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.3 ( 27) E 0.3 ( 6) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 14) ESE 0.4 ( 9) 0.8 ( 17) 0,1 ( 2) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 1.3 ( 28) 0.5 11) 1,7 ( 36) 1.2 ( 25) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 3.5 ( 72) SE SSE 0,2 ( ( 5) 0.8 ( 16) 0.7 ( 15)

                                                                  ~

0.0 ( 0) 00 (- 0) 0.0 ( 0) 1.7 ( 36) S 0.2 ( 4) 1.2 ( 26) 1.3 ( 28) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 2.8 ( 58) SSM 0,1 ( 2) 1.1 ( 23) 0.4 ( 9) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.6 ( 34) SW 0.2 ( 5) 1.1 ( 23) 1.6 ( 34) 05 ( 10) 0.0 ( 0) 0.0 ( 0) 3.5 ( 72) MSM 0,1 ( 2) 2.0 ( 41) 3.4 ( 70) 1.2 ( 26) 0.0 ( 0) 0.0 ( 0) 6.7 ( 139) M 0.1 ( 3) 0.9 ( 18) 0.7 ( 14) 02 ( 5) 0.0 ( }) 0.0 ( 0) 2.0 ( 4}) MHM 0.0 ( 1) 0.3 ( 6) 0.2 ( 5) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12) HM 0.0 '( 1) 0.1 ( 3) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 00 ( 0) 0.5 ( ]0) HHM 0.1 ( 3) 0.2 ( 5) 0.4 ( 9) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.9 ( 18') TOTAL '3.7 ( 76) 15.6 ( 324) 11.9 ( 247) 2.2 ( 46) 0.0 ( 1) 0.0 ( 0) 33. 3 ( 694) FOR STABILITY CLASS E HU}}BER OF POSSIBLE }}OURLY OBSERVATIONS< 694 HU}ABER OF MISSING MIHD OBSERVATIONS< t}U}NEFi OF CALM HOURS~

>l NIAGARA MOHAWK POWER CORPORATION WIND SPEED, WIND DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE> NINE MILE POIHT MAIN TOWER PARAMETERS'SPL WDRL AHD TDFU APRIL 1, 1987 TO JUHE 30 '987 STABILITY CLASS F

               Ã FREQUENCY (NO. OF OCCUREHCES) OF WIND DIRECTION WITHItt WIND SPEED CATEGORY SPEED (MPH) 8-12         13-18             19-23 H       0.0 (     1)   0.2 (    5)    0.3 (     6)     0.0 (     1)   00   (   0)    0.0 (  0)     0.6 (    13)

HHE 0.0 ( 1) 0.5 ( 11) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.6 ( 12) tlE 0.2 ( 4) 0.4 ( 8) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 14) EHE 0.2 ( 4) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8) E 0.3 ( 7) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( ~ 15) ESE 0.3 ( 7) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.5 ( 11) SE 0.2 ( 4) 0.5 ( 11) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 15) SSE 0.1 ( 3) 0.6 ( 13) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.8 ( 16) S 0.3 ( 6) 1.2 ( 25) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.5 ( 32) SSW 0.2 ( 4) 1.1 ( 23) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.4 ( 29) Svl 0.0 ( 1) 0.7 ( 15) 0.1 ( 2) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.9 ( 19) WSW 0.0 ( 1) 0.7 ( 15) 1.0 ( 20) 0.3 ( 6) 0,0 ( 0) 0.0 ( 0) 2.0 ( 42) W 0.1 ( 3) 0.5 ( 10) 0.0 ( 0) 0.0 ( 0) 0.0 0) 0.0 ( 0) 0.6 ( 13) WHW 0,2 ( 4) 0.1 ( 3) 0.0 ( 1) 0.0 ( 0) 00 ( 0) 0 0 (

                                                                                            ~     0)     0.4 (     8)

HW 0.1 ( 3) 0.1 ( 2) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.3 ( 6) HHW 0.1 ( 3) 0.2 ( 4) 0.4 ( 9) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.8 ( 17) TOTAL 2.7 ( 56) 7.7 ( 161) 2.1 ( 44) 0.4 ( 9) 0.0 ( 0) 0.0 ( 0) 13.0 ( 270) FOR STABILITY CLASS F HUMBER OF POSSIBLE HOURLY OBSERVATIONS< 270 NUMBER OF MISSIHG WIND OBSERVATIONS> HUMBER OF CALM HOURS>

NIAGARA MOHAWK POMER CORPORATIOH WIND SPEED MIHD DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE> NINE MILE POINT MAIN TOWER PARhMETERSi WSPLn MDRL AHD TDFU APRIL 1 ~ 1987 TO JUHE 30 '987 STABILITY CLASS>> G X FREQUENCY (NO. OF OCCUREHCES) OF MIND DIRECTIOH MITHIX MIND SPEED ChTEGORY SPEED (MPH)

                                                              -18                               >24 H        0.1 (          0.3 (     6)    0.1 (    3)    0.1  (    3)   0.0 (      0)    0.0 (    0)     0.7 (    14)

NHE 0.0 ( 0) 0.1 ( 2) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 3) HE 0.1 ( 2) 0.4 ( 9) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0,0 ( 0) 0.5 ( 11) EHE 0.2 ( 4) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) E 0.6 ( 13) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.7 ( 15) ESE 0.5 ( 10) 03 ( 7) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.8 ( 17) SE 0.9 ( 19) 1.0 ( 20) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.9 ( 39) SSE 0.5 ( 11) 0 8 ( 16) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.3 ( 27) S 0.5 ( 10) 0.5 ( 11) 0.0 ( 0) ~ 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 1.0 ( 21) SSM 0.1 ( 2) 01 ( 3) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) SW 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 (

                                                                                             ~       0)     02  (     5)

WSM 0.0 ( 1) 0.4 ( 8) 0.2 ( 4) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.8 ( 16) M 0.2 ( 5) 0.4 ( 9) 0.1 ( 2) 0.0 ( 0) 0,0 ( 0) 0.0 ( 0) 0.8 ( 16) WHM 0,0 ( 1) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) HM 0.1 ( 3) 0.0 ( 1) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) HNM 0.1 ( 2) 0.1 ( 3) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 8) TOTAL Q.3 ( 90) 4.7 ( 98) 0.7 ( 15) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 10,0 ( . 209) FOR STABILITY CLASS G NUMBER OF POSSIBLE HOURLY OBSERYATIOHSI 209 HUMBER OF MISSING WIHD OBSERVATIONS> NUMBER OF CALM HOURS~ 0

k ,I

NIAGARA MOHAWK POMER CORPORATIOH WIHD SPEEDp MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE> NINE MILE POINT MAIN TOWER PARAMETERS'SPL'e MDRL AHD TDFU APRIL 1 t 1987 TO JUHE 30 '987 STABILITY CLASS ALL ie FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTIOH MITHIH MIND SPEED CATEGORY SPEED (MPH) MKQXJQH 13-18 H NNE HE ENE E ESE 0.4 0.3 1.1 ( 1.0 ( 1.3 1.3 ( (

                   .(

( 8) 7) 23) 21) 27) 28) 2.5 3.6 5.7 1.5 1.1 2.0 ( ( ( ( ( ( 51) 75) 118) 32) 22) 42) 1.7 ( 1.4 ( 1.5 ( 0.3 0.0 1.9 ( ( ( 35) 30) 31) 6) 1) 39) 0.6 00 0.2 0.0 0.0 00 ( ( ( ( ( ( 13) 1) 4) 0) 0) 1) 0.0 ( 0.0 ( 0;0 0.0 ( 0.0 ( 0.0 ( 0) 0) 0) 0) 0) 0) 0.1 0.0 0.0 0.0 0,0 0.0 ( ( ( ( ( (

                                                                                                    ')2) 0)

0) 0) 0) 5.2 8.5 2.8 2.4 5.3 ( ( ( ( ( ( 109) 1I3) 176) 59) 50) 110) SE 1.8 ( 37) 5.3 ( 111) 4,1 ( 85) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 11. << ( 238) SSE 1.0 ( 20) 3.0 ( 63) 3.5 ( 73) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 7.9 ( 164) S 1.1 ( 22) 3.4 ( 71) 3.1 ( 6<<) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 7.8 ( 163) SSW 0.4 ( 8) 2.6 ( 55) 0.8 ( 16) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 3.8 ( 80) SW 0.6 ( 12) 2.3 ( 47) 2.3 ( 47) 0.6 ( 13) 0.0 ( 0) 0.0 ( 0) 5.7 ( 119) MSW 0.2 ( 5) 4,2 ( 88) 8,5 ( 177) 3.1 ( 65) 0.3 ( 7) 0.0 ( 0) 16.4 ( 342) M 0,6 ( 12) 2.9 ( 61) 2.0 ( <<2) 1.5 ( 31) 1.0 ( 20) 0.6 ( 12) 8:6 ( 178) WHW 0.5 ( 11) 0.9 ( 18) 0.7 ( 15) 0.5 ( 10) 0.2 ( 4) 0.2 ( 4) 3.0 ( 62) NW 0.4 ( 9) 1.1 ( 23) 0.6 ( 12) 0.3 ( 7) 0.0 ( 0) 0.0 ( 0) 2.5 ( 51) HNM 0.4 ( 9) 1.4 ( 29) 1.2 ( 25) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) - 3.2 ( 67) TOTAL 12.4 ( 259) 43.5 ( 906) 33.5 ( 698) 8. 1 ( 169) 1.5 ( 31) 0.9 ( 18) =100. 0 ( 208 I ) FOR STABILITY CLASS ALL HUMBER OF POSSIBLE HOURLY OBSERVATIONS< 2081 HUMBER OF MISSING WIHD OBSERVATIONS< 0 NUI!BER OF CALM HOURSI

K II

HIAGARA MOHAWK POMER CORPORATION WIHD SPEED MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FRECIUENCY DISTRIBUTION SITE'IHE MILE POINT MAIH TOMER PARAMETERS< MSPL AND MDRL APRIL 1, 1987 TO JUNE 30, 1987 A FREQUENCY (HO. OF OCCURENCES) OF MIHD DIRECTION WITHIN MIND SPEED CATEGORY SPEED (MPH) 13- 8 9-23 >2 N 0.4 ( 8) 2.4 ( 50) 1.4 ( 30) 0.6 ( 13) 0.0 ( 0) 0.0 ( 0) 4.9 ( 101) HHE NE EHE 0.3 ( 1.1 ( 1.0 ( 7) 23) 21) 3.6 ( 5,7 ( 1.5 ( 75) 118) 32) 1.4 ( 1.5 ( 0.3 ( 30) 31) 6) 0.0 0.2 0.0 ( ( ( 1) 4) 0) 0.0 0.0 0.0 ( ( ( 0) 0) 0)

                                                                                           '.0 0.0 (

0.0 ( ( 0) 0) 0) 5.4 8.5 2.8 ( ( ( 113) 176) 59) E 1.3 ( 27) 1.1 ( 22) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 2.<< ( 50) ESE 1.3 ( 28) 2,0 ( 42) 1.9 ( 39) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 5.3 ( 110) SE 1.8 ( 37) 5,3 ( 111) 4.1 ( 85) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 11.4 ( 238) SSE 1.0 ( 20) 3.0 ( 63) 3.5 ( 73) 0.4 ( 8) 0.0 ( 0) 0.0 ( 0) 7.9 ( 164) S 1.1 ( 22) 3.4 ( 71) 3.1 ( 64) 0.3 ( 6) 0.0 ( 0) 0.0 ( 0) 7.8 ( 163) SSM 0.4 ( 8) 2.6 ( 55) 0.8 ( 16) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 3.8 ( 80) SM 0.6 ( 12) 2.3 ( 47) 2.3 ( 47) 0.6 ( 13) 0.0 ( 0) 0.0 ( 0) 5,7 ( 119) WSM 0.2 ( 5) 4.2 ( 88) 8.5 ( 177) 3.1 ( 65) 0.3 ( 7) 0.0 ( 0) 16. 5 ( 3<<2) W 0.6 ( 12) 2.9 ( 61) 2.0 ( 42) 'l.5 ( 31) 1.0 ( 20) 0.6 ( 12) 8.6 ( 178) WNW HM HNM 0.5 0.4 0.4 ( ( ( 11) 9) 9) 0.9e( 1.2 ( 1.5 ( 19) 24) 31) 0.7 0.6 1.3 ( ( ( 15) 13) 26) 0.5 0.3 0.2 ( ( ( 10) 7). 4) 0.2 0.0 0.0 ( ( ( 4) 0) 0) 0.0 (, 0.2 ( 0.0 ( 4) 0) 0) 3.0 2.5 3.4 ( ( ( 63) 53) 70) TOTAL 12.5 ( 259) 43.7 ( 909) 33,4 ( 695) 8.1 ( 169) 1.5 ( 31) 0.8 ( 16) 100. 0 (. 2079) FOR ALL MIHD CATEGORIES HUI1BER OF POSSIBLE HOURLY OBSERVATIONS< 2184 HOURS'05 HlPIBER OF-MISSIHG MIHD OBSERVATIONS> NUMBER OF CALM

NIAGARA MOHAWK POWER CORPORATIOH MIND SPEEDi MIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE~ HINE MILE POINT MAIN TOMER PARAMETERS'SPUi WDRU AND TDFU APRIL 2p 1987 TO JUNE 30. 1987 STABILITY CLASS . A A FREqUEHCY (NO. OF OCCUREHCES) OF WIND DIRECTIOH WITHIN WIHD SPEED CATEGORY SPEED (MPH) 3- 8 'l9-23 N 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) 0,2 ( 5) 0-.0 ( 0) 0.1 ( 2) 0.4 ( 9) HHE 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0,2 ( 5) 0.1 ( 3) 0.0 ( 1) 0.5 ( 10) HE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ENE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) E 0.0 ( 0) 0.0 ( 0) 0.0 0) 0.0'l ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ESE .0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0. ( 3) 0.1 ( 2) 0.0 ( .0) 0.2 ( 5) SE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) 0.0 ( 1) 0.0 ( 0) 0.3 ( 6) SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0..1 ( 2) 0.0 0) 0.0 ( 0) 0.1 ( 2) S 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0,( 0) SSW SM 0.0 0.0 ( ( 0) 0) 0.0 0.0 ( ( 0) 0) 0.0 0.0 ( ( 0) 0) 0.0 ( 00 ( 0) 0) 0.0 0.0 ( ( 0) 1) 00(( 0.0 0) 0) 0.0'(

                                                                                                                            ~

0.0 ( 0) 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) MSM M WNM 0.0 0.0 ( ( 0) 0) 0.0 0.0 ( ( 0) 1) 0.0 0.0 ( ( 0) 0) 0.0 ( 00 ( 0) 0) 0.0 0.1 ( ( 2) 2) 00( 00 ( 0) 0) 0.0 0.1 ( ( 1) 3) 0.0 ( 0) 0.0 ( 1) 0.1 ( 3) 0.1 ( 3) 0.1 ( 3) 0.0 ( 1) 0.5 ( 11) HM NNM TOTAL 0.0 0.0 ( ( 0) 0) 02(( 0.3 5) 7) 0.1 0.4 ( ( 3) 9) 0.0 ( 1.2 ( 0) 25) 0.0 0.7 ( ( 2) 14) 00 0.2 ( ( 0) 4) 0.4 2.8 ( ( 9) 59) FOR STABILITY CLASS A NUMBER OF POSSIBLE HOURLY OBSERYATIOHS~ 59 NUMBER OF MISSING MIND OBSERVATIONS'UMBER OF CALM HOURS~

S HIAGARA MOHAWK POMER CORPORATIOH WIHD SPEEDi WIND DIRECTION AHD ATtfOSPHKRIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi HINE MILE POINT MAIN TOWER PARAMETERS> WSPUi WDRU AHD TDFU APRIL 1 ~ 1987 TO GUNK 30'987 STABILITY CLASS D

                 % FREQUENCY (HO. OF OCCUREHCES) OF MIND DIRKCTIOH WITHIH WIHD SPEED CATEGORY SPEED  (tlPH)
                                                   -12        13-18                -t3 H         0.0 (    0)    0.1 (     2)    0.0 (    0)    0.1  (     2)  0.1   (       3)    0.0 (    0)   0.3  (  7)    >>

HNE 0.0 ( 0) 0.0 ( 1) 0.1 ( 2) 0.0 ( 1) 0. 'i ( 3) 0.1 ( 3) 0.5 ( 10) HE 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 00 ( 1) EHE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) SE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) 0.1 (" (, 2) 0.0 ( 1) 0.2 ( 5) SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 0) 0.0 1) 0.0 ( 0) 0.2 ( 5) S 0.0 ( 0) 0.0 ( '0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( .0) 0.0 ( 0) SSM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( -

0) 0.0 ( 0) 0.0 ( 0)

SM 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 0) 0.0 ( 0) 0.0 ( 0) 0.0 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) HOURS MSM ( ( M 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0,0 ( 1) WHM 0.0 ( 0) 0.2 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) HM 0.0 ( 1) 0.0 ( 1) 0.0 ( '1) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 3) NHM 0.0 ( 0) 0 1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 3) TOTAL 0.0 ( 1) 0.5 ( 11) 0.2 ( 5) 0.5 ( 10) 0. 5 ( 10) 0.2 ( 4) 2 0 ( EI1) FOR STABILITY CLASS B HUtlBER OF POSSIBLE HOURLY OBSERVATIONS< tlUllBER OF tlISSIHG WIND OBSERVATIONS~ NUtlBKR OF CAIA

                                                                                                                           ~

NIAGARA MOHAWK POMER CORPORATIOH MIND SPEEDp MIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOIHT FREQUEHCY DISTRIBUTION SITE< HINE 11ILE POINT MAIN TOMER PARAMETERS~ WSPU MDRU AHD TDFU APRIL 1 1987 TO JUNE 30 1987 STABILITY CLASS C

                %  FREQUENCY (HO, OF OCCUREHCES)              OF WIHD DIRECTION   MITHIH MIHD SPEED CATEGORY SPEED (MPH) 8-12         13-18               -23 0.0 (     0)                 0.1    3)     0.1       2)     0.0 (     1)    0.0       0)    0.0 (         0.3      7)

H HHE HE 0.0 ( 0.0 0) 0) 00((( 0.0 1) 0) 0.1 0.0 ( ( ( 2) 1) 0.0 ( 0.0 ( 0) 0) 0.0 0.0 ( ( ( 0) 0) 0.0 ( 0.0 ( 1) 1) 0) 0.2 0.0 ( ( ( 0) 1) ENE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0 0 ( 0) 0 0 ( 0) 0.0 ( 0) 0.0 ( 0) E 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) ESE 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1( 3) 00 ( 1) 0.0 ( 0) 0.2 ( 0) SE 0.0 ( 0) 0 0 ( 0) 0.1 ( 2) 0.2 ( 9) 0.0 ( 1) 0.0 ( 0) 0.3 ( 7) SSE 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.2 ( 5) 0.0 ( 1) 0.0 ( 0) 0.3 ( 7) S 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.2 ( ~i) SSW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) SW 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) WSM 0,0 ( 0) 0.0 ( 0) 0.0 ( 1) O.c) ( 8) 0.0 ( 1) 0.0 ( 1) 0.5 ( 11) M MNM 0.0 ( 0.0 ( 0) 0) 00(( 0.1 1) 2) 0.0 0.0 ( ( 0) 0) 0 0 ( 0.0 ( 0) 0) 0 2 0.0 ( ( 5) 0) 0.0 ( 0.0 ( 0) 1) 0.3 0.1 ( ( 6) 3) NM 0.0 ( 0) 0.1 ( 2) 0.0 0) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.1 ( 2) NHM 0,0 ( 0) 0.0 ( 0) 0.1 ( 3) 0,0 ( 1) 0.0 ( 0) 0.0 ( 0) 0.2 ( 0) TOTAL 0.0 ( 0) 09 ( 9) 0.6 ( 13) 1,2 ( 25) 0.4 ( 9) 0.2 ( 0) 2,9 ( 60) FOR STABILITY CLASS C HU11BER OF POSSIBLE HOURLY OBSERVATIONS> NUMBER OF OF CALM HOURS'0 HISSING MIND OBSERVATIONS'BIBER

HIAGhRA MOHAWK POMER CORPORATION MIND SPEEDi MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOIHT FREQUENCY DISTRIBUTIOH SITEi HIHE MILE POINT MAIN TOWER PARAMETERS'SPUi WDRU AHD TDFU APRIL 1, 1987 TO JUHE 30'987 STABILITY CLASS D

               Ã FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIN MIND SPEED CATEGORY SPEED  (MPH) 13-18             3             >24 N        0.0 (     0)   0.4 (    9)    0.2 (    4)      0.2 (     4)  0.3 (    6)    0.2 (    5)    1.3 (     28) 0.0       1)   0.8 (   16)    0.2 (    4)      1.2 (    26)  1.0     21)    1.0 (   21)    4.3       89)

(') HNE ( ( ( HE 0.0 ( 0) 0.6 ( 13) 0.3 ( 7) 0.5 ( 11) 0.1 ( 2) 0.0 ( 0) 1.6 ( 33) ENE 0.0 ( 1) 0.2 ( 5) 0.1 ( 3) 01 ( 2) 0.0 ( 0) 0.0 ( 0) 0.5 ( 11) E 0.0 ( 0) 0.0 ( 0) 0.1 ( 3) 0.0 ( 1) 0.0 0.0 ( 0) 0.2 ( 4) ESE 0.0 ( 1) 0.0 ( 1) 0.1 ( 3) 1.0 ( 21) 0.1 3) 0.0 ( 0) 1.4 ( 29) SE 0.1 ( 2) 0.4 ( 8) 1.3 ( 27) 2.7 ( 56) 1.0 ( 21) 0.1 ( 3) 5.6 ( 117) SSE S SSW 0.0 0.0 0.0 ( ( ( 0) 0) 0) 0,1 ( 0.0 ( 0.2 ( 2) 1) 5) 0.8 ( 0.5 ( 0.1 ( 16) 11) 3)

                                                          '.71.9 0.3

( ( ( 40) 14) 6) 0.5 0.4 0,0 ( ( ( 10) 9) 0) 0.3 0.0 0.0 ( ( ( 6) 1) 1) 3.6 1.7 0.7 ( ( ( 74) 36) 15) SM 0 0

               ~  (     0)   0.2 (    4)    0.4 (    8)     05    (   10)  0.1 (    2)    0.0 (    0)    1.2  (    24)

WSM 0.0 ( 1) 0.2 ( 5) 2.1 ( 43) 3.5 ( 73) 0.9 ( 19) 0.6 ( 13) 7.4 ( 154) M 0.1 ( 2) 0.4 ( 9) 1.2 ( 25) 0.7 ( 14) 0.4 ( 9) 1.0 ( 21) 3.8 ( 80) 0.0 ( 1) 0.2 ( 5) 0.2 ( 5) 0.5 ( 10) 0.1 ( 2) 0.2 ( 4) 1.3 ( 27) WHM HW HNM 0.0 0.0 ( ( 1) 0) 03( 0.2 ( 6) 5) 0.2 ( 0.1 ( 5) 3) 0.1 0.2 ( ( 3) 4) 0.0 0.0 ( ( 0) 0) 0.0 0.0 ( ( 0) 0) 0.7 0.6 ( ( 15) 12) TOTAL 0.5 ( 'IO) 4.5 ( 94) 8,2 ( 170) '14.2 ( 295) 5.0 ( 104) 3.6 ( 75) 35. 9 ( '748) FOR STABILITY CLASS D NUMBER OF POSSIBLE HOURLY OBSERYATIOHS> HOURS'48 NUMBER OF MISSING MIHD OBSERVATIONS< HUMBER OF CALM

a '

'I

NIAGARA MOHAWK POWER CORPORATION WIHD SPEEDi WIHD DIRECTION AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi NINE MlLE POINT MAIN TOWER PARAMETERS< WSPU, WDRU AND TDFU APRIL. 1i 1987 TO JUNE 30, 1987 STABILITY CLASS E

                %  FREQUEHCY (HO. OF OCCUREHCES)  OF WIND DIRECTION WITHIN WIHD SPEED CATEGORY SPEED (MPH) 8-12         3- 8               <-23 H        0.0  (    1)    0.1 (    3)    0.1  (     2)   0.7  (  15)    0.7   (    15)  0.3  (  6)    2.0 (    42)

HHE 0.0 ( 0) 0.0 ( 0) 0.5 ( 11) 0.8 ( 17) 1.2 ( 25) 1.2 ( 26) 3.8 ( 79) HE 0.0 ( 1) 0.4 ( 9) 0.4 ( 9) 0.3 ( 7) 0.0 ( 0) 0.0 ( 0) 1.2 ( 26) ENE 0.0 ( 1) 0.4 ( 9) 0.2 ( 4) 0.1 ( 3) 0.2 ( 5) 00 ( 0) 1.1 ( 22) E 0.0 ( 1) 0.1 ( 3) 0.1 ( 2) 0.0 ( 1) 0.0 ( 0) 00 ( 0) 0.3 ( 7) ESE 0.0 ( 1) 0.0 ( 1) 0.3 ( 6) 0.2 ( 4) 0.0 ( 0) 0.0 ( 0) 0,6 ( 12) SE 0.0 ( 1) 0.2 ( 5) 0.6 ( 13) 1.8 ( 37) 0.9 ( 19) 0.0 ( 1) 3.7 ( 76) SSE 0.0 ( 0) 0.1 ( 3) 0.3 ( 7) 0.9 ( 18) 0.4 ( 8) 0.0 ( 0) 'l.7 ( 36) S 0.0 ( 0) 0,3 ( 6) 0.4 ( 9) 1,2 ( 25) 0.4 ( 8) 0.0 ( 0) 2.3 ( 48) SSW 0.0 ( 0) 0,3 ( 6) 0.4 ( 8) 1.2 ( 26) 0,1 ( 2) 0.0 ( 0) 2.0 ( 42) SW 0.1 ( 2) 0,1 ( 3) 0' ( 17) 1.6 ( 34) 0.5 ( 10) 0 6 ( 12) 3.7 ( 78) WSW 0.0 ( 0) 0.4 ( 8) 1.7 ( 35) 2.5 ( 52) 1. 4 ( 30) 0 6 ( 13) 6.6 ( 138) W 0.0 ( 1) 0,3 ( 7) 0.7 ( 15) 0.6 ( 12) 0. 1 ( 3) 02 ( 4) 2.0 ( 42) WHW 0.0 ( 0) 0.2 ( 5) 0.5 ( 10) 0.0 ( 1) 0.0 ( 1) 0.0 ( 1) 0.9 0'5 (( 18) HW 0.0 ( 0) 0.0 ( 1) 0.2 ( 4) 0.1 ( 3) 0.1 ( 3) 00 ( 0) 11) HHW 0.1 ( 2) 0.1 ( 2) 0.1 ( 2) 0.2 ( 4) 0.2 ( 5) 01 ( 2) 0.8 ( 17) TOTAL 0.5 ( 11) 3.4 ( 71) 7.4 ( 154) 12.<<( 259) 6.4 ( 13<<) 3. 1 ( 65) 33. 3 ( 69<<) FO'R STABILITY CLASS E HUMBER OF POSSIBLE HOURLY OBSERVATIONS~ NUMBER OF MISSING WIND OBSERVATIONS~ HINDER OF CALM HOURS~

HIAGARA MOHAWK POWER CORPORATIOH WIND SPEEDi WIND DIRECTIOH AHD ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE'IHE MILE POINT MAIN TOWER PARAMETERS~ WSPUi WDRU AHD TDFU APRIL 1, 1987 TO JUNE 30'987 STABILITY CLASS F

                Ã FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTIOH WITHIN WIHD SPEED CATEGORY SPEED  (MPH) 8>>12         3-18              19-23 N        0.1 (     3)   0,0 (    8)    0.2  (     0)   O.Q (     8)   O,Q (-     8)   0.2    9)    1.7 (  35)

NHE 0.0 ( 0) 0.3 ( 6) 0.2 ( 0) 0.1 ( 2) 0. 1,( 2) 0.1 3) 0.8 ( 17) HE 0.0 ( 0) 0.1 ( 3) 0.1 ( 3) 0.2 ( 0) 0.0 ( 0) 0.0 0) 0.5 ( 10) ENE 0.0 ( 0) 01 ( 3) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 0.0 0) O.Q ( 8) E ESE 0.0 0.0 ( ( 0) 0) 02( 0.0 ( 0) 0) 0.3 0.0 ( ( 6) 0) 0.0 0.1 ( ( 1) 3) 0.0 ( 0.'0 ( 0) 0) 0.0 0.0 0) 0) 0.5 0.1 ( ( 11) 3) SE 0.0 ( 1) 0.0 ( 1) 0.1 ( 2) 0.1 ( 2) 0.0 ( 1) 0.0 0) 0.3 ( 7) SSE S 0.0 0,0 ( ( 1) 0) 01( 01( 3) 2) 0,2 0.3 ( ( 5) 7) 0.3 0.3 ( ( 6) 7) 0.0 ( 0.0 ( 0),. 0) 0.0 0.0 0) 0) 0.7 0.8 ( ( 15) 16) SSW SW 0.0 0.0 ( ( 0) 0) 01( 0.1 ( 2) 2) O.Q 0.7 ( ( 8) 19) 0.3 1.0 ( ( 7) 20) 0.0 ( 0.0 ( 1) 0) 0.0 0.0 0) 1) 0.9 1.8 ( ( 18) 37) WSW W 0.0 0.0 ( ( 0) 0) 01( 01( 3) 3) 1.5 O.Q ( ( 32) 8) 0.5 0.1 ( (

11) 0.3 (

0.0 ( 6) 0) 0.2 0.0 5) 1) 2.7 0.7 ( ( 57) 10) 2)') . WHW 0.0 ( 0) 0.2 ( 5) 0.1 ( 2) 0.0 ( 0.0 ( 0) 0;0 0) 0.3 ( 7) HW 0.0 ( 0) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) 0.0 ( 1) 0.0 0) 0.1 ( 2) NNW 0.0 ( 1) 0.1 ( 2) 0.1 ( 3) 0.1 ( 2) 0.1 ( 3) 0.1 2) 0.6 ( 13) TOTAL 0.3 ( 6) 23 ( Q7) 5.0 ( 100) 3.6 ( 75) 1.1 ( 22) 0.8 16) 13.0 ( 270) FOR STABILITY CLASS F "NUMBER OF POSSIBLE HOURLY OBSERYATIOHS> 270 HUMBER OF MISSIHG WIHD OBSERYATIOHSI NUMBER OF CALM HOURS<

NIAGARA'MOHAWK POWER CORPORATION WIND SPEEDi MIND DIRKCTIOH AND ATMOSPHERIC STABILITY JOINT FREQUENCY DISTRIBUTION SITEi NINE MILE POIHT MAIN TOWER PARAMETERS'SPU WDRU AHD TDFU APRIL 1 1987 TO JUHE 30 1987 STABILITY CLASS G A FREQUENCY (HO. OF OCCUREHCES) OF l'IHD DIRECTION WITHIN WIND SPEED CATEGORY SPEED (MPH) 3-18 1 -23 N 0.1 ( 3) 0.1 ( 3) 0.0 ( 1) 0.1 ( 2) 0.3 ( 7) 0.2 ( 5) 1.0 ( 21) HHE 0.0 ( 1) 0.2 ( 5) 0.0 ( 0) 0.2 ( 5) 0.1 ( 3) 0.0 ( 1) 0.7 ( 15) 0.0 0.1 2) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.2 ( 5) HE KHE 0.1 ( ( 1)

2) 0.1

( ( 3) 0,2 ( 4) 0.0 ( 0) 0.0 ( 0) 0.0 ( 0) 0.4 ( 9)' 0.1 2) 0.1 ( 3) 0.3 ( 6) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 0.6 13) E ESE 0.1 ( ( 3) 0.1 ( 2) 0.2 ( 4) 0.1 ( 2) 0.0 ( 0) 0.0 ( 0) 05 ( 11) SE 0.0 ( 0) 0.3 ( 7) 0.1 ( 2) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) 0.7 ( 14) SSE 0.1 ( 2) 0,3 ( 6) 0.4 ( 8) 0.0 ( 1) 0.0 ( 0) 0.0 ( 0) 0;8 ( 17) 0.0 ( 1) 0.1 ( 3) 0.4 ( 8) 0.2 ( 5) 0.0 ( 0) 0.0 ( 0) - 0.8 ( 17) S SSW SW 0.1 0.1 0.1 ( ( 2) 3) 3) 0.1 0.2 0.1 ( ( ( 3) 4) 3) 0,2 ( 0,5 ( 0,3 ( 5) 10) 7) 0.1 0.2 0.3 ( ( ( 3) 5) 6) 0.0 0.0 0.0 ( ( ( 0)'.0 0) 0) 0.0 ( ( 0.0 ( 0) 0). 1) 0.6

                                                                                                                                          '.0
1. 1

( ( ( 13) 22) 20) WSW 0.1 ( ( 2) 02 ( 'l) 0,1 ( 3) 0.0 ( 0) 0.0 ( 0) 0.1 ( 3) 06 ( 12) W 0.0 1) 0.1 ( 2) 0,0 ( 1) 0.0 ( 0) 0.0 ( ~ 1) 0.0 ( 0) 0.2 ( 5) WHW 00 ( ( 0) 0.0 ( 1) 0,1 ( 2) 0.0 ( 0) 0.0 ( 1) 0.0 ( 0) " 02 ( 4) NW HHW 0.0 ( 1) 0.1 ( 3) 0.1 ( 3) 0.1 ( 3) 0.0 ( 0) 0.0 (- 1) = 0.5 ( 11) TOTAL 1.3 ( 27) 2.6 ( 54) 3.2 ( 66) 1.9 -( 39) 0,6 ( 12) 0.5 ( 11) 10. 0 ( 209) FOR STABILITY CLASS G HUMBER OF POSSIBLE HOURLY OBSERVATIONS< 209 NUMBER OF MISSIHG WIHD OBSERVATIONS'NIBKR OF CALll HOURS'

C ~ %

0 HIAGARA MOHAWK POWER CORPORATIOH WIHD SPEEDi WIHD DIRECTIOH AHD ATMOSPHEPIC STABILITY JOINT FREQUENCY DISTRIBUTION SITE> NINE MILE POIHT MAIH TOWER. PARAMETERS< WSPU WDRU AHD TDFU APRIL 1 ~ 1987 TO JUNE 30'987 STABILITY CLASS ALL A FREQUENCY (HO. OF OCCUREHCES) OF WIHD DIRECTION WITHIH WIND SPEED CATEGORY SPEED (MPH) 08- 2 3- 8 1 -2 H 0.3 ( 7) 1.3 ( 28) 0.7 ( 15) 1.8 ( 37) 1.9 ( 39) 1.1 23) 7.2 ( 149) NHE 0.1 ( 2) 1.4 ( 29) 1.2 ( 24) 2.7 ( 56) 2.7 ( 57)  ?.7 56) 10. 8 ( 224) HE 0.1 ( 2) 1.3 ( 27). 1.1 ( 23) 1.1 ( 22) 0.1 ( 2) 0.0 0) 3.7 ( 76) ENE 0.2 ( 4) 1.0 ( 20) 0.8 ( 16) 0.2 ( 5) 0.2 ( 5) 0.0 0) 2.4 ( 50) E 0.1 ( 3) 0.5 ( 10) 0.8 ( 17) 0.2 ( 5) 0.0 ( 0) 0.0 0) 1.7 ( 35) ESE 0.2 ( 5) 0.2 ( 4) 0.6 ( 13) 1.7 ( 36) 0.3 ( 6) 0.0 0) 3.1 ( 64) SE 0.2 ( 4) 1.0 ( 21) 2.2 ( 46) 5.3 ( 111) 2.2 ( 45) 0.2 5) 11.1 ( 232) SSE S SSW 0.1 0.0 0.1 ( ( ( 3) 1) 2) 0.7 0.6 0.8 ( ( ( 14) 12) 16) 1.8 ( 1.7 ( 1.2 ( 37) 36) 24) 3.7 ( 2.6 ( 2.0 ( 76) 54) 42) 1.0 ( 0.8 0.1 ( ('7) 20) 3) 0.3 0.0 0.0 6), 7.5 1) 1) 5.8 ( ( ( 156) 121) 88) SW 0.2 ( 5) 0 6 ( 13) 2.4 ( 49) 3 3 ( 69) 0.6 ( 13) 0.6 13) 7.8 ( 162) WSW 0.2 ( 4) 0,9 ( 19) 5.7 ( 118) 7.4 ( 153) 2.7 ( 56) 1.6 33) 18. 4 ( 383) W 0.2 ( 5) 1.2 ( 24) 2.5 ( 51) 1.3 ( 28) 0.9 ( 19) 1.4 29) 7.5 ( 156) WNW 0.1 ( 2) 1.2 ( 24) 0.9 ( 19) 0.5 ( 11) 0.3 ( 6) 0.3 6) 3.3 ( 68) HW 0.1 ( 2) 0.6 ( 12) 0.8 ( 16) 0.4 ( 9) 0.4 ( 8) 0.0 1) 2.3 ( 48) HHW 0,2 ( 4) 1.0 ( 20) 0.8 ( 17) 0.7 ( 14) 0.4 ( 9) 0.2 5) 3.3 ( 69) TOTAL 2.6 ( 55) 14. 1 ( 293) 25.0 ( 521) 35.0 ( 728) 14.7 ( 305) 8.6 179) 100.0 ( 2081) FOR STABILITY CLASS ALL HUIIBER OF POSSIBLE HOURLY OBSERVATIONS'081 NUMBER OF MISSING WIHD OBSERVATIONS'UMBER OF CALM HOURS~

HIAGARA MOHAWK POWER CORPORATIOH MIHD SPEED, MIHD DIRECTION AHD ATMOSPHERIC STABILITY JOIHT FREQUENCY DISTRIBUTION SITEi HIHE ttILE POINT MAIN TOMER PARAHETERS< WSPU AHD MDRU APRIL 1, 1987 TO JUNE 30'987

               % FREQUEHCY                   (HO. OF OCCVREHCES) OF MIHD DIRECTION MITHIH MIHD SPEED CATEGORY SPEED  (HPH) 8- 2                                           )24 N        0.3 (     7)                     1.3  (  28)    0.7  (    15)    1.9 (    39)  1.9 (   39)    1,0 (     21)    7.1  ( 149)

HHE 0.1 ( 2) 1.4 ( 29) 1.2 ( 24) 2.7 ( 56) 2.7 ( 57) 2.'7 ( 56) 10.7 ( 224) HE 0.1 ( 2) 1.3 ( 27) 1.1 ( 23) 1.1 ( 22) 0.1 ( 2) 0.0 ( 0) 3,6 ( 76) EHE 0.2 ( 4) 1.0 ( 20) 0.8 ( 16) 0,2 ( 5) 0.2 ( '5) 0.0 ( 0) 2.4 ( 50) E 0.1 ( 3) 0.5 ( 10) 0.8 ( 17) 0,2 ( 5) 0,0 ( 0) 0.0 ( 0) 1.7 ( 35) ESE 0.2 ( 5) 0.2 ( 4) 0.6 ( 13) 1.7 ( 36) 0.3 ( 6) 0.0 ( 0) 3,1 ( 64) SE 0.2 ( 4) 1.0 ( 21) 2.2 ( 46) 5,3 ( 111) 2.2 ( 45) 0.2 ( 5) 11. 1 ( 232) SSE 0.1 ( 3) 0.7 ( 14) 1,8 ( 37) 3.6 ( 76) 1.0 ( 20) 0.3 ( 6) 7.5 ( 156) S 0.0 ( 1) 0.6 ( 12) 1.7 ( 36) 2.6 ( 54) 0.8 ( 17) 0.0 ( 1) 5.8 ( 121) SSW 0.1 ( 2) 0.8 ( 16) 1.2 ( 24) 2.0 ( 42) 0.1 ( 3) 0.0 ( 1) 4.2 ( 08) SM 0.2 ( 5) 0.6 ( 13) 2.3 ( 49) 3.3 ( 69) 0.6 ( 13) 0.6 ( 13) 7.8 ( 162) MSM 0.2 ( 4) 0.9 ( 19) 5.7 ( 118) 7.3 ( 153) 2.7 ( 56) 1.6 ( 33) 18. 4 ( 383) M 0.2 ( 5) '}.2 ( 24) 2.4 ( 51) 1.3 ( 28) 0.9 ( 19) 1.4 ( 29) 7.5 ( 156) WHM 0.1 ( 2) 1.2 ( 24) 0.9 ( 19) 0.5 ( 11) 0.3 ( 6) 0.3 ( 6) 3.3 ( 68) HW 0.1 ( 2) 0.6 ( 13) 0.8 ( 16) 0.4 ( 9) 0.4 ( 8) 0.0 ( 1) 2.3 ( 49) HHW 0.2 ( 4) 1.0 ( 21) 0.9 ( 18) 0.7 ( 15) 0.4 ( 9) 0.3 ( 6) 3.5 ( 73) TOTAL 2.6 ( 55) 14. 1 ( 295) 25.0 ( 522) ~ 35.0 ( 731) 14. 6 ( 305) 8.5 ( 178) 100.0 ( 2086) FOR ALL WIND CATEGORIES HUHBER OF POSSIBLE HOURLY OBSERVATIONS> 2184 OF CAM HOURS'8 NUMBER OF- MISSING MIND OBSERVATIONS'tl)1BER

TABLE 5 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION 82

SUMMARY

OF CHANGES TO THE OFF-SITE DOSE CALCULATION MANUAL JANUARY JUNE In accordance with the Nine Mile Point 2 Technical Specifications, this Table (a) describes and provides justification for recent changes to the Off-Site Dose Calculation Manual and (b) explains why these changes will not adversely affect the accuracy or reliability of off-site dose calculations or monitor alarm setpoint determinations. Attachment 2 to this document provides a copy of the Off-Site Dose Calculation Manual (which shows recent changes made). All revisions to the Off-Site Dose Calculation Manual were reviewed and accepted by authorized station personnel in accordance with applicable administrative procedures and of the Technical Specifications. Review and approval documentation is affixed to the front side of Attachment 2.

                               -16

TABLE 5 (Last Page) SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION SC2

SUMMARY

OF CHANGES TO THE OFF-SITE DOSE CALCULATION MANUAL JANUARY JUNE CHG. ODCM DESCRIPTION OF CHANGE AFFECT ON ACCURACY/ NO. SECTION CHANGED (JUSTIFICATION) RELIABILITYOF DOSE CALCULATIONS/ALARM SETPOINT DETERMINATIONS

1. 2.5 A factor, M, was added to the None ~

equation for calculation of the recirculation time necessary to thoroughly mix a radwaste tank prior to discharge. The factor is 4 for tank 2LWS-TK5A and B based on design data and in plant testing. 2.

~   3.4.4
        ~            An  error in the test was dis-                        None covered. The fraction of time that cows are on pasture is  now  correctly stated  as 0.5.
3. Table 2-2 Additional nuclides were added None to the table. These were or may in the future be discharged in liquid waste.
4. 2.1.3.1 The alarm setpoint for the liquid None radioactive discharge monitor will not be set to less than 355 cpm over back-ground. This is the same as the service water and cooling tower blowdown monitors setpoint.
                                          -17

TABLE 6 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION PP2

SUMMARY

OF CHANGES TO THE PROCESS CONTROL PROGRAM JANUARY JUNE Nine Mile Point Nuclear Station Site Administrative Procedure AP 3.7.1, which describes the Nine Mile Point Unit 2 Process Control Program (PCP) was implemented during the current reporting period. In accordance with the Nine Mile Point 2 Technical Specifications, this Table: (a) describes the rationale for changes in the PCP and (b) explains why these changes will not adversely affect the overall conformance of the solidified waste product to existing criteria for ~ solid wastes. Attachment 1 to this document provides a copy of Revision 0 to AP-3.7.1.

                                 -18

TABLE 6 (Last Page) SEMI-ANNUAl RADIOACTIVE EFFLUENT RELEASE REPORT (1987) HINE MILE POINT NUCLEAR STATIOH //2

SUMMARY

OF CHANGES TO THE .PROCESS CONTROL PROGRAM JANUARY - JUNE CHG. AP-3.7.1 RATIOHALE FOR CHANGE AFFECT ON CONFORMANCE HO. SECTION CHANGED OF WASTE PRODUCT TO EXISTING CRITERIA There were no chan'ges to the Process Control Program.

                                     -19

~ 'N' TABLE 7 SEMI-ANNUAL RADIOACTIVE RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION SP2 EXPLANATION 'OF INSTRUMENTATION INOPERABILITY DATE OUT DATE RETURNED INSTRUMENT OF SERVICE TO SERVICE EXPLANATION Stack Noble 1-21-87 2-17-87 Difficulty in diagnosing the Gas problem and a=- lack of available spare parts. Work Request 109201. Reactor- 1-5-87 2-16-87 Difficulty in diagnosing the Radwaste .Vent problem and paperwork delays Noble Gas once problem was repaired. Stack System 1-87 Lack of approved procedures Flow Reactor- 2-87 Lack of approved procedure. Radwaste Vent System Flow Service Water

    ~

1-1-87 5-21-87 Lack of spare parts. A Radiation

         ~

Service Water 2-19-87 5-21-87 Lack of spare parts. B Radiation

                                       -20

ATTACHMENT 1 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION 8 2 PROCESS CONTROL PROGRAM Attached is a copy of the NMP .Administrative Procedure (AP) 3,7.1 "Process Control Program" Revision 0. Description of changes made to the Pr'ocess Control Program are provided in Table 6 of this report.

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ATTACHMENT 2 SEMI-ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (1987) NINE MILE POINT NUCLEAR STATION 4C 2 OFFSITE DOSE CALCULATIONS MANUAL Attached is a copy of the Offsite Dose Calculation Manual Revision 3 for Nine Mile Point Nuclear Station Unit 2. Description of changes made to the manual are provided in Table 5 of this report.

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