ML20138J362
| ML20138J362 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 03/21/1996 |
| From: | Anderson H, Kwasnik J, Leland W NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO) |
| To: | |
| Shared Package | |
| ML20138H542 | List: |
| References | |
| PROC-960321, NUDOCS 9705080174 | |
| Download: ML20138J362 (42) | |
Text
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- SEABROOK STATION
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- (PCP)
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s SUBMITTED BY: A*L J.M.KWApIK,1 SENIOR RADIOLOGICAL SCIENTIST DATE l
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y REVIEWED BY: -' A ~ '
l H Mi A$DERSON, A WASTE DEPARTMENT SUPERVISOR DATE APPROVED BY: M
- W. ."LEIAND, CHEMISTRY AND HEALTH PHYSICS MANAGER #
BATE SORC REVIEW COMPLETED DURING MEETING NUMBER: kb "ON DATE: 8!fN North Atlantic Energy Service Corporation 9705000174 970430 PDR ADOCK 05000443 R PDR ,
. l Reference ,
APPENDIX E: PROCESS CONTROL FROGRAM 1
I. PURPOSE The objective of the Process Control Program (PCP) is to assist in satisfying Nuclear Regulatory Commission (NRC) regulations and i disposal site license requirements involving waste form structural '
stability and free-standine water limitations. As a minimum, these regulatory requirements are 10 CFR 61.56(a)(3)&(b) and the appropriate disposal site license requirements.
II. WASTE PROCESS DEWATERING USING THE " PUMP-AND-WAIT" DEWATERING METHOD AS ORIGINALLY DEVEIDPED BY CHEM-NUCLEAR SYSTEMS INC.
1.0 GENERAL DESCRIPTION This section discusses the qualified waste, qualified equipment and procedures, and the acceptance criteria for dewatering radioactive waste using the " Pump and Wait" dewatering method as originally developed by Chem-Nuclear Systems, Inc. (CNSI). The waste is loaded into an appropriate liner and dewatered by a cycle of eight hours of pumping out the excess watar followed by an eight hour waiting period, The cycle is repeated until the appropriate number of dewatering cycles have been completed and the amount of water removed is below the value specified in $4,0, Acceptance Criteria.
2.0 OUALIFIED WASTES 2.1 Specific bead ion exchange resins acceptable for dewatering are: 5.2 2.1.1 DOWEX MR3 l 1
1 2.1.2 DOWEX MR13 2.1.3 DOWEX anion SBRC 2.1.4 DOWEX HGRW-2 2.1.5 R&H IRN 238 i 2.1.6 R&H IRN 217 2.1.7 R&H IRA 93 2.1.8 IONAC NC-10 2.1.9 IONAC NA-38 2.1.10 IONAC NM-60 2.1.11 GRAVER GR-1-0 2.1.12 GRAVER GR-2-0 E-1 PCP
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$ Reference i
2.1.13 GRAVER GR-4-0 I i
. 2.1.14 GRAVER GR-4-9 2.1.15 GRAVER GR-3-9 2.2 Other waste forms acceptable for dewatering include:
i 2.2.1 AtoChem CAC 40W (Granular Activated Charcoal) 5.6
{
! 2.2.2 Filters 1
2.3 Any common polystyrene-based bead ion-exchange resins not 5.2 l
t included in $2.1 are acceptable for dewatering subject to the 5.5 following conditions:
1 2.3.1 The resin shall have a moisture content of less than or equal to 57 percent when shipped from the supplier to the plant.
2.3.2 Mixtures of resins shall have a weighted average of l "as shipped" moisture contents less than or equal to I 57 percent. I 2.4 The bead ion-exchange resins qualifying under 2.1, 2.2, or 2.3 5.3 shall also satisfy the following criteria in order to be acceptable for dewatering:
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2.4.1 The media shall contain less than 1 percent oil or grease, j l
2.4.2 The media shall not contain significant quantities of crud 5.3 that could inhibit dewatering capabilities. Significant quantities are as defined in the dewatering procedure " Bead Resin / Activated Carbon Dewatering".
2.4.3 Physical degradation of the media from its new form shall be limited to that due to routine water demineralization and resin j transfer operations, i
o E-2 PCP
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o Reference l 3.0 QUALIFIED EOUIPMENT AND PROCEDURES l l
l 3.1 Resins, filters, and irradiated hardware may be disposed of using an I
appropriate liner from the list below.
i l 3.1.1 FRP 24 X 50 i
3.1.2 FRP 24 X 72 3.1.3 PL 4-85R l l
3.1.4 PL 6-80 l l
3.1.5 PL 6-80R i
3.1.6 PL 7-100 l
3.1.7 PL 7-100R ,
3.1.8 PL 8-120 l
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3.1.9 PL 8-120R
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l 3.1.10 PL 14-170 i 3.1.11 PL 14-170R l 3.1.12 PL 14-195 l
3.1.13 PL 14-195R 3.1.14 PL 14-215 Corrugated l
l 3.1.15 PL 21-300 1
3.1.16 PL 21-300P.
3.1.17 L 1-13 Standard 3.1.18 L 1-13G Insert !
l 3.1.19 L 3-55 Standard )
ll l l 3.1.20 L 4-85 Conical or Flat i
{ !
! 3.1.21 L 6-75 Conical or Flat ;
! 3.1.22 L 6-80 Conical, Flat, Cor-Met, or Cor-Met FT i 3.1.23 L 7-100 VConical, Flat, Cor-Met, or Cor-Met FT j i
3.1.24 L 8-120 Conical, Flat, Cor-Met, or Cor-Met FT l i ;
i 1 1 3.1.25 L 14-170 Conical,-Flat, Cor-Met, or Cor-Met FT i l E-3 PCP a
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- - ggference 1
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i 3.1.26 L 14-195 Conical, Flat, Cor-Met, or Cor-Met FT
j 3.1.29 PV 24 X 72 1 3.1.30 PV 24 X 79 ;
j 3.1.31 NUPAC FL50/EA50 3.1.32 NUPAC 142 1
l l' . 3.1.33 NUPAC 190 !
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, 3.1.34 NUPAC 210 )
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i 3.1.35 ES-50 l f 3.1.36 ES-142 3.1.37 ES-190 2
3.1.38 ES-210 l 3.2 Station procedures must be consistent with applicable SAR and vendor operating j procedures.
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3.3 Dewatering equ'.pment supplied by CNSI shall meet the requirements of Reference 5.1. Equivalent substitutions may be made with the approval of the Waste i Services Supervisor (WSS). Any substitutions shall meet the. requirements of NCP 6.07 and the following:
i 3.3.1 Dewatering pump substitutions shall meet the following requirements: ;
3.3.1.1 The dewatering pump shall be a 1 1/2" positive displacement diaphragm pump with 1 1/2" FNPT connections and 1/2" FNPT air inlet as a minimum.
3.3.1.2 The. pump centerline elevation shall be at or below the top ,
of the shipping container, i 3.3.1.3 Pump suction lift capability shall be at least twice the height of the container.
3.3.1.4 Pump shall be operated per vendor specifications and operating manual to meet minimum suction lift requirements.
3.3.2 Connecting hoses shall be at least 1 1/2" non-collapsible type.
3.3.3 The service air hose connecting to the pump shall be at least 1/2" ,
with 150 psi rating with a 3/4", 150 psi rating couplar to connect to l the service air supply.
E-4 PCP
O Reference 3.3.4 Service air shall be at least 20 SCFM at 80 +20 -10 PSIG.
3.4 Waste containers shall be on the approved list in $3.1 or meet the requirements of Reference 5.1 and the associated liner's procedure and SAR.
Prior to making substantial modifications to the CNSI provided 3.5 1
dewatering equipment, waste containers, or operating procedures, j CNSI shall verify in writing that such modifications are consistent
, with References 5.1, 5.3, and/or 5.4, as applicable. For substantial 3 modifications to dewatering equipment or waste containers provided l by others, WSS shall forward the pertinent information to NUSCO Radwaste Engineering for review. Any such changes shall be documented j in $3.6 at the next revision. Examples of substantial modifications
- include, but are not limited to
3.5.1 Dewatering pump replacement, if it does not meet the j requirements of 3.3.1.
l 3.5.2 Dewatering container internals modifications.
3.5.3 Changes in the required pumping time or waiting period.
3.6 The following equipment deviations from Reference 5.1 have been
- accepted
l 3.6.1 Replacement of conical bottom containers with flat bottom s containers.
3.6.2 Addition of secondary dewatering system.
3.6.3 Modification of internals to reduce the number of filters from 12 to 8.
j 3.6.4 Replacement of cotton filter material with polypropylene.
4 3.6.5 Modification of filter end caps.
! 4.0 ACCEPTANCE CRITERIA 4.1 The dewatering equipment shall operate for a minimum of one 5.1 cycle for filters, two cycles for bead resin and five cycles for activated carbon (each consisting of at least eight hours
- of pumping and at least eight hours of waiting) followed by a j final eight hours of pumping through the primary dewatering leg.
j (Refer to the procedure associated with the appropriate liner.) l l
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E-5 PCP i
1 i e j Reference I
4.2 During the final pumping period, no more than two gallons of water 5.1 shall be removed from the waste container using the primary dewatering line. For filter liners, during the final pumping 5.3 3 period, no more than 1 gallon of water shall be removed from the l j waste container using the primscey dewatering line. If the amount 5.4 of water removed exceeds this unount, a pump-and-wait cycle shall be repeated until this criterin is met. )
4.3 The WSS shall dotermine if the following steps shall be performed after satisfying Ay aptance Criteria 4.1 and 4.2. Wait at least eight hours before performing the following dewatering check:
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4.3.1 Using the secondary dewatering line, less than one I quart of water shall be obtained while dewatering j the container for at least one hour. !
4.3.2 If a secondary dewatering line is not available, the 5.5 j primary dewatering lir.e shall be used to verify that
- less than one quart of water is obtained in at least 4 one hour. When using the primary dewatering line for the final dewatering check, the installed suction gauge shall register less than 10" of Hg to ensure that filter i blinding has not occurred.
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5.0 REFERENCES
{ 5.1 CNSI Topical Report DW-11118-01-P-A, "CNSI Dewater Control Process
! Containers Topical Report."
a 5.2 Letter from L. H. Crob, CNSI to W. R. Koste dated July 27, 1990.
5.3 CNSI Procedure FO 0P-023 " Bead. Resin / Activated Carbon Dewatering Procedure for CNSI 14-715 or Smaller Liners."
! 5.4 CNSI Procedure FO-OP-025.
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- 5.5 " Engineering Evaluation of Millstone Dewatering Systems for Compliance uith 10 CFR 61.56," prepared by Northeast Utilities Service Company (NUSCO) Radwaste Systems, November 7, 1990.
5.6 Memo number SE-91-376 from K. A. Barber to R. E. Haight dated October 23, 1991.
E-6 PCP
! APPENDIX C i
j Radioactive Liould Effluent Monitorine Instrumentation i
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Reauirements: Radioactive Liquid Effluent Monitoring Instrumentation channels are required to
, be operable in accordance with Technical Specification 3.3.3.9.b. With less than
- the minimum number of channels operable for 30 days, Technical Specification 1
3.3.3.9.b requires an explanation for the delay in correcting the inoperability in i the next Annual Effluent Release Report in accordance with Technical l Specification 6.8.1.4.
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Response: A review of the Action Statement Status tracking system for the period from January 1,1996 to December 31,1996 indicated Tech Spec 3.3.3.9 was entered for more than 30 consecutive days.1-WL-FT-1458 was declared inoperable on 11/04/96 due to an indication error when discharging low conductivity water.
96DCR0022 (scheduled for implementation in the February-March timeframe) will replace the flow sensing instruments with an improved design.
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APPENDIXB Radioactive Gaseous EffluentMonitoring Instrumentation Requirements: Radioactive Gaseous Effluent Monitoring Instrumentation channels are required to be operable in accordance with Technical Specification 3.3.3.10.b. With less than the minimum number of channels operable for 30 days, Technical Specification 3.3.3.10.b requires an explanation for the delay in correcting the inoperability in the next Annual Effluent Release Report in accordance with Technical Specification 6.8.1.4.
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Response: A review of the Action Statement Status tracking system for the period from l
January 1,1996 to December 31,1996 indicated Tech Spec 3.3.3.10 was never I entered for more than 30 consecutive days. This includes outage time associated with 1-RM-RM-6505 (condenser offgas monitor) which is required to be j included in this check per Technical Clarification TS-056. '
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APPENDIX E Liould Holduo Tanks Reauirement: Technical Specification 3.11.1.4 limits the quantity of radioactive material contained in any temporary unprotected outdoor tank. With the quantity of radioactive material in any temporary unprotected outdoor tank exceeding the limits of Technical Specifications 3.11.1.4, a description of the events leading in this condition is required in the next Annual Effluent Release Report pursuant to Technical Specification 6.8.1.4.
Response None.
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. 1 APPENDIX F
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Eadwaste Treatment Systems 1
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l Reauirement: Technical Specification 6.14.1.a requires that licensee initiated changes to the {
Radwaste Treatment Systems (liquid, gaseous, and solid) be submitted to the l l Commission in the Annual Radioactive Effluent Release Report for the period in l
. which the change was made.
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Resoonse: No changes were made to the Radwaste Tr-atment Systems. '
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APPENDIX G Unolanned Releases Reauirement: Technical Specification 6.8.1.4 requires that the Annual Radioactive Effluent Release Report include a list and description of unplanned releases of radioactive materials in gaseous and liquid effluents made during the reporting period from the site to UNRESTRICTED AREAS.
Resoonse: None.
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l ENCLOSURE 2 TO NYN-97037 l l
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SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWER) 43.0 FT MIND DATA STABILITY CLASS A CLASS FREQUENCY (PERCDJT) = 1.05 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL 'IOTAL MPH CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) 10 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00
.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 (1) .00 .00 .00 .00 .00 .00 .00 1.14 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 1.14
.00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 4-7 0 0 0 0 0 1 0 1 0 1 1 1 0 0 0 0 0 5 (1) .00 .00 .00 .00 .00 1.14 .00 1.14 .00 1.14 1.14 1.14 .00 .00 .00 .00 (2) .00 .00 .00 5.68
.00 .00 .00 .01 .00 .01 .00 .01 .01 .01 .00 .00 .00 .00 .00 .06 6-12 2 0 0 3 0 1 29 8 1 7 11 6 4 1 1 0 0 74 (1) 2.27 .00 .00 3.41 .00 1.14 32.95 9.09 1.14 7.95 12.50 6.22 4.55 1.14 1.14 .00 .00 84.09 (2) .02 .00 .00 .04 .00 .01 .35 .10 .01 .08 .13 .07 .05 .01 .01 .00 .00 .88 13-18 0 0 0 0 0 0 1 0 0 0 1 1 0 3 2 0 0 8 (1) .00 .00 .00 .00 .00 .00 1.14 .00 .00 .00 1.14 1.14 .00 3.41 2.27 .00 .00 9.09 (2) .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .01 .01 .00 .04 .02 .00 .00 .10 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 GT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 2 0 0 3 0 2 30 10 1 8 13 8 4 4 3 0 0 88 (1) 2.27 .00 .00 3.41 .00 2.27 34.09 11.36 1.14 9.09 14.77 9.09 4.55 4.55 3.41 .00 .00 100.00 (2) .02 .00 .00 .04 .00 .02 .36 .12 .01 .10 .15 .10 .05 .05 .04 .00 .00 1.05 (1)sPERCENT OF ALL OOOD OBSERVATIONS FOR THIS PAGE (2)4'ERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD l
C= CALM (WIND SPEED LESS THAN OR EQUAL To .95 MPH)
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I SEABROOK JAN96-DeC96 NET DATA JOINf FREQUENCY DISSIBO."20' (210-FOOT 1TMER) i 43.0 FT WIND DATA STABILITY C1.hSS B' LLASS FREQUDICY (FtM 0.'T; . 2.33 WIND DIRECTION FROM i l
i SPasp w ms He mNs s zSe Ss SSe S Ssw sw wsw w 49M NW NNW VRBL WAL NPH L
CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 !
(1) .00 .00 .00 .00 .0L .00 .00 .00 .00 .00 .00 .00 .'00 .00 .00 .00 .00 .00 l (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 j C3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ,
(2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 I 4-7 0 0 0 0 2 2 3 0 0 3 4 4 2 2 0 0 0 22 ;
(1) .00 .00 .00 .00 1.12 1.12 1.68 .00 .00 1.68 2.23 2.23 1.12 1.12 .00 .00 .00 12.29 (2) .00 .00 .00 .00 .02 .02 .04 .00 .00 .04 . 05 - .05 .02 .02 .00 .00 .00 .26 0-12 4 1 0 4 8 1 22 10 2 7 17 13 13 8 4 2 0 116 I (1)- 2.23 .56 .00 2.23 4.47 .56 12.29 5.59 1.12 3.91 v.50 7.26 7.26 -4.47 2.23 1.12 .00 64.80 '
(2) .05 .01 .00 .05 .10 .01 .26 .22 .02 .08 .20 .35 .15 .10 .05 .02 .00 1.38 13 18 0 0 2 3 0 0 0 0 1 3 3 2 5 9 9 0 0 37 i (1) .00 .00 1.12 1,68 .00 .00 .00 .00 .56 1.68 1.68 1.12 2.79 5.03 5.03 .00 .00 20.67 (2) .00 00 .02 .04 00 .00 .00 .00 .01 .04 .04 .02 .06 .11 .11 .00 .00 .44 1 i
19-24 0 0 0 0 0 0 0 0 1 1 0 0 0 2 0 0 0 4 (1) .00 .00 .00 .00 .00 .00 .00 .00 .56 .56 .00 .00 .00 1.12 .00 .00 .00 2.23 (2) .00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .00 .00 .00 .02 .00 .00 .00 .05 i W 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 4 1 2 7 10 3 25 10 4 14 24 19 20 21 13 2 0 179 (1) 2.23 .56 1.12 3.91 5.59 1,68 13.97 5.59 2.23 7.82 13.41 10.61 11.17 11.73 7.26 1.12 .00 100.00 (2) .05 .01 .02 .08 .12 .04 .30 .12 .95 . 7.7 .29 .23 .24 .25 .15 .02 .00 2.13 (llePERCENT OF ALL 0000 OSSERVATIONS FOR SWIS Fart
. (2)=PERC8NT OF ALL 000D OBSERVATIONS FOR 'IMIS PD -"O CJ CAIAt (WIND SPEED LESS 1HAN OR EQUAL 19 .95 r 't) l l
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I SEASROOK JAN96-DSC96 NET DhTA JOINT FREQUENCT DISTRISt* TION (2104 XM' '!VWE:R) 43.0 FT WIND DATA STABILITif CIASS C CLASS FREQUENCY (PERCENT) = 4.46 I WIND DIRECTION FROM sPaso N NNE NE sNE E EsE sE set s ssw sw wsw w www Nw NNw vRBt, NPH wrAt.
CAIJs 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 . 00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l C-3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 2 l 81) .00 .00 .00 .00 .27 .00 .00 .00 .00 .00 .00 .00 .00 .27 .00 .00 .00 .53 (2) .00 .00 .00 .00 .01 .00 .00 .00 .C0 .00 .00 .00 .00 .01 .00 .00 .00 .02 4-7 1 0 1 5 6 2 6 6 0 4 6 8 11 4 6 1 0 67 (1) .27 .00 .27 1.34 1.60 .53 1.60 1.60 .00 1.07 1.60 2.14 2.94 1.07 1.60 .27 .00 17.91 (2) .01 .00 .01 .06 .07 .02 .07 .07 .00 .05 .07 .10 .13 .05 .07 .01 .00 .80 0-12 4 0 2 -16 24 15 ' 20 7 2 9 21 21 28 27 40 0 0 216 (1) 1.07 .00 .53 4.28- 6.42 4.01 5.35 1.87 .53 2.41 5.61 5.61 7.49 7.22 5.35 .00 .00 57.75 (2) .05 .00 .02 .19 .29 .18 .24 .08 .03 .11 .25 .25 .33 .32 .24 .00 .00 2.57 13-18 0. 0 0 4 1- 2 3 0 .0 2 2 7 8' 22 27 0 0 78 (1) .00 .00 .00 1.07 .27 .53 .80 .00 .00 .53 .53 1.87 2.14 5.88 1.22 .00 .00 20.86 (2) . 00 - .00 ,00 .05 .01 .02 .04 .00 .00 .02 .02 ,08 .10 .26 .32 .00 .00 .93 l 19-24 0 0 0 0 1 0 0 0 0 1 0 0 0 4 5 0 0 11 (1) ,00 .00 . 00 .00 .27 .00 . 00 .00 .00 .27 .00 .00 00 1.07 1.34 .00 .00 2.94 (2) .00 .00 .00 .00 .01 .00 . 00 .00 .00 .01 .00 .00 .00 .05 .06 .00 .00 13
[ tFr 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 L (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l (2) .00 .00 .00 .00 - 00
, .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 I
!' .ALL spa ps 5 0 3 25 33 19 29 13 2 16 29 36 41 58 58 1 0 374 I
til -1.34 .00 .80 6.68 8.82 5.08 7.75 3.48 .53 4.28 7.75 9.63 12.57 15.51 15.51 .27 00 100.00 I: (2) .06 .00 .04 .30 .39 .23 .35 .15 .02 .19 .35 .43 .56 .69 .69 .01 .00 4.46 (llarmCMrr OF alt. 000D OBSERVATIONS FOR THIS PAGE (2)ermCarr or ALL 0000 oBgERVATIONS FOR '!HIS PERIOD Ce CALW (WIND SPEED LESS THAN OR EQUAL 'Jo .95 MPH) l l
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e' SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWER) 43.0 FT WIND DATA STABILITY CLASS D CLASS FREQUENCY (PERCENT) = 45.13 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL M TAL MPH CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 23 17 10 32 10 6 10 8 14 7 11 14 8 18 27 27 0 242 (1) .61 .45 .26 .85 .26 .16 .26 .21 .37 .18 .29 .37 .21 .48 .71 .71 .00 6.39 (3) .27 .20 .12 .38 .12 .07 .12 .30 .17 .08 .13 .17 .10 .21 .32 .32 .00 2.88 4-7 127 60 60 83 85 55 81 100 73 73 67 103 104 89 128 91 0 1379 (1) 3.35 1.58 1.58 2.19 2.25 1.45 2.14 2.64 1.93 1.93 1.77 2.72 2.75 2.35 3.38 2.40 .00 36.42 (2) 1.51 .72 72 .99 1.01 .66 .97 1.19 .87 .87 .80 1.23 1.24 1.06 1.53 1.08 .00 16.44 8-12 92 50 69 108 117 B5 65 63 29 52 90 00 125 202 166 63 0 1456 (1) 2.43 1.32 1.82 2.85 3.09 2.25 1.72 1.66 .77 1.37 2.38 2.11 3,30 6.34 4.38 1.66 .00 38.46 (3) 1.10 .60 .82 1,29 1.39 1.01 .77 .75 .35 .62 1.07 .95 1.0 2.41 1.98 .75 .00 17.35 13-18 12 4 35 34 25 13 2 15 10 12 9 31 68 145 139 15 0 569 (1) .32 .11 .92 .90 .66 .34 .05 .40 .26 .32 .24 .82 1.80 3.83 3.67 .40 .00 15.03 (3) .14 .05 42 .41 .30 .15 .02 .18 .12 .14 .11 .37 .81 1,73 1.66 .38 .00 6.78 19-24 1 0 28 15 12 0 0 0 0 0 1 0 2 20 26 0 0 105 (1) .03 .00 74 .40 .32 .00 .00 .00 .00 .00 .03 .00 .05 .53 .69 .00 .00 2.77 (2) .01 .00 .33 .18 .14 .00 .00 .00 .00 .00 .01 .00 .02 .24 .31 .00 .00 1.25 GT 24 0 0 20 9 0 0 0 0 0 0 0 0 0 5 1 0 0 35 (1) .00 .00 .53 .24 .00 .00 .00 .00 .00 .00 .00 .00 .00 .13 .03 .00 .00 .92 (2) .00 .00 .24 .11 .00 .00 00 .00 .00 .00 .00 .00 .00 .06 .01 .00 .00 .42 ALL SPEEDS 255 131 222 281 249 159 158 186 126 144 178 228 307 479 487 196 0 3786 (1) 6.74 3.46 5.86 7.42 6.58 4.20 4.17 4.91 3.33 3.80 4.10 6.02 8.11 12.65 12.86 5.18 .00 100.00 (3) 3.04 1.56 2.65 3.35 2.97 1.90 1.88 2.22 1.50 1.72 2.12 2.72 3.66 5.71 5.80 2.34 .00 45.13 (1)=PERCEh? OF ALL COOD OBSERVATIONS FOR 'DtIS PACE (3)oPERCEt@ OF ALL GOOD OBSERVATIONS FOR THIS PERIOD C* CAIJi (WIND SPEED LESS THAN OR EQUAL M .95 MPH)
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i SEA 1 ROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWER) l' 43.0 FT WIND DATA STABILITY CLASS E CLASS FREQUENCY (PERCElfr) = 30.56 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL W TAL MPH CALM 2 0 0 0 0 0 0 0 0 1 0 1 1 1 0 1 0 7 (1) .08 .00 .00 .00 .00 .00 .00 .00 .00 .04 .04 .00 .04 .04 .00 .04 .00 (2) .02 .00 .00 .27
.00 .00 .00 .00 .00 .00 .01 .01 .00 .01 .01 .00 .01 .00 .08 C-3 26 22 23 27 14 14 12 13 39 39 40 40 67 59 38 34 0 507 (1) 1.01 .86 .90 1.05 .55 .55 .47 .51 1.52 1.52 1.56 1.56 2.61 2.30 1.48 1.33 .00 19.77 (2) .31 .26 .27 .32 .17 .17 .14 .15 .46 .46 .48 .48 .80 .70 .45 .41 .00 6.04 4-7 25 17 24 35 57 24 51 66 51 98 139 190 169 179 111
.98 54 0 1290 (1) .66 .94 1.37 3.22 .94 1.99 2.57 1.99 3.82 5.42 7.41 6.59 6.98 4.33 2.11 .00 50.31 (2) .30 .20 .29 .42 .68 .29 -. 61 .79 .61 1.17 1.66 2.26 2.01 2.13 1.32 .64 .00 15.38 8-12 -15 7 19 11 15 14 8 39 30 37 67 70 78 111 43 6 0 570 (1) .59 .27 .74 .43 59 .55 .31 1.52 1.17 1.44 2.61 2.73 3,04 4.33 1.68 .23 .00 22.23 (2) .18 .08 .23 .13 .18 .17 .10 .46 .36 .44 .80 .83 .93 1.32 .51 .07 .00 6.79 13-18 7 2 8 15 6 1 0 20 4 22 7 2 17 30 12 3 0 156 (1) .27 .08 .31 .59 .23 .04 .00 .78 .16 .86 .27 .08 .66 1.17 .47 .12 .00 6.08 (2) .08 .02 .10 .38 .07 .01 .00 .24 .05 .26 .08 .02 .20 .36 .14 .04 .00 1.86 19-24 0 2 5 8 1 0 0 5 1 2 0 0 0 6 0 0 1 31 (1) .00 .08 .20 .31 .04 .00 40 .20 .04 .08 .00 .00 .00 .23 .00 .04 .00 1.21
, (2) .00 .02 06 .10 .01 .co ,00 .06 .01 .02 .00 .00 .00 .07 .00 .01 .00 .37 GT 24 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 3 l (1) .00 .00 .04 .04 .00 .00 .00 .00 .00 .00 .00 .00 .00 .04 .00 .00 .00 .12 l (2) .00 .00 .01 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .04 ALL SPEEDS 75 50 80 97 93 53 71 143 125 199 254 302 332 387 204 99 0 2564 (1) 2,93 1.95 3.12 3.78 3.63 2.07 2.77 5.58 4.88 7.76 9.91 11.78 12.95 15.09 7.96 3.86 .00 100.00 (2) .89 .60 .95 1.16 1.11 .63 .85 1.70 1.49 2.37 3.03 3.60 3.96 4.61 2.43 1.18 .00 30.56 (1)wPERCENT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)sPERCENT OF ALL GOOD OBSERVATICHS FOR THIS PERIOD Ce CALM (WIND SPEED LESS THAN OR EQUAL M .95 MPH) l I
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l SEABROOK JAN96-DEC96 MET DATA JOIttr FREQUENCY DISTRIBUTION (210-FOOT TOWER) 43.0 FT WIND DATA STABILITY CLASS F CIASS FREQUENCY (PERCENT) = 9.69 -
WIND DIRECTION FROM l SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW MPH NW NNW VRBL TOTAL i
CAtm 0 1 1 0 1 0 0 0 0 0 2 2 0 0 1 0 0 8 (1) .00 .12 .12 .00 .12 .00 .00 .00 .00 .00 .25 .25 .00 .12 .00 .00 .00 .98 (2) .00 .01 .01 .00 .01 .00 .00 .00 .00 .00 .02 .02 .00 .01 .00 .00 .00 .10 ,
l C-3 12 9 12 20 10 12 5 9 9 24 33 52 79 63 48 24 0 421 i
(1) 1.48 1.11 1,48 2.46 1.23 1.48 62 1.11 1.11 2.95 4.06 6.40 9.72 7.75 5.90 2.95 .00 51.78 (2) .14 .11 .14 .24 .12 .24 .06 .11 .11 .29 .39 .62 .94 .75 .57 .29 .00 5.02 l '
I 4-7 3 2 1 5 9 2 11 8 5 11 34 67 78 59 50 9 0 354
- (il .37 .25 .12 .62 1.11 .25 1.35 .98 ,62 1.35 4.18 8.24 9.59 7.26 6.15 1.11 .00 43.54 j (2) .04 .02 .01 .06 .11 .02 .13 .10 .06 .13 .41 .80 .93 .70 .60 .11 .00 4.22 I 8-12 1 0 1 1 2 0 4 1 0 0 2 1 1 2 6 3 0 25 (1) .12 .00 .12 .12 .25 .00 .49 .12 .00 .00 .25 .12 .12 .25 .74 .37 .00 3.08 (2) .01 .00 .01 .01 .02 .00 .05 .01 .00 .00 .02 .01 .01 .02 .07 .04 .00 .30 i 13-18 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 4 0 5 ,
- 41) .00 .00 .00 .00 .00 .00 .00 .12 .00 .00 .00 .00 .00 .00 .00 .49 .00 .62 (2) .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .05 .00 .06 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 l
.00 .00 .00 .00 .00 .00 .00 .00 .00 t (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 GT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 ,00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 l ALL SPF.EDS 16 12 15 26 22 14 20 19 14 35 71 122 158 125 104 40 0 813 l (1) 1.97 1.48 1.85 3.20 2.71 1.72 2.46 2.34 1.72 4.31 8.73 15.01 19.43 15.38 12.79 4.92 .00 100.00 (2) .19 .14 .18 .31 .26 .17 .24 .23 .17 .42 .85 1.45 1.88 1.49 1.24 .48 .00 9.69 l (1)= PERCENT OF ALL GOOD OBSERtATIONS FOR THIS PAGE (2)= PERCENT OF ALL OOOD OBSERVATIONS FOR THIS PERIOD Ce CALM (WIND SPEED LESS 1HAN OR EQUAL TO .95 MPH) i I
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SEAIROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWER) 43.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCENT) . 6.98 WIND DIRECTION FROM SPEED N NNE NE f:NE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL MTAL MPH CALM 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 0 4 (1) .00 .00 .00 .00 .00 .00 .00 00 .00 .00 .00 .17 .17 (2) .00 .00 .00
.34 .00 .00 .00 .68
.00 .00 .00 .00 .00 .00 .00 .00 .01 .01 .02 .00 .00 .00 .05 C-3 14 7 6 18 7 5 2 1 3 4 31 72 121 106 33 18 0 448 (1) 2.39 1.19 1.02 3.07 1.19 .85 .34 .17 .51 .68 5.29 12.29 20.65 18.09 5.63 3.07 .00 76.45 (2) .17 .08 .07 .21 .08 .06 .02 .01 .04 .05 .37 .86 1,44 1.26 .39 .21 .00 5.34 4-7 0 0 0 3 0 4 3 0 0 3 5 17 26 32 32 5 0 130 (1) .00 .00 .00 .51 00 .6B .51 .00 .00 .51 .85 (2) .00 .00 .00 2.90 4.44 5.46 5.46 .85 .00 22.18
.04 .00 .05 .04 .00 .00 .04 .06 .20 .31 .38 .38 .06 .00 1.55 8-12 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 (n .00 .00 .00 .00 .17 .00 .00 .00 .00 .00 .00 .00 .00 .00 .34 .00 .00 3
.51 (2) .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .04 13-18 0 'O O 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .17 .00 .00 (2) .00 .00 .00 .17
.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 01 19-24 0 0 0 0 0 0 0 C 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .0D u0 .00 .00 .00 .00 .00 .00 )
(2) .00 .00 00 .00 .00
.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 i GT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) ,00 .00 .00 .00 .00 .00 .00 .00 .00 . 00 .00 .00 .00 .00 .00 .00 .00 .00 l (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 )
l ALL SPEEDS 14 7 6 21 8 9 5 1 3 7 36 90 148 140 68 23 0 586 f i
(1) 2.39 1.19 1.02 3.58 1.37 1.54 .85 .17 .51 1.19 6.14 15.36 25.26 23.89 11.60 3.92 .00 100.00 i j (2) .17 .08 .07 .25 .10 .11 .06 .01 .04 .08 .43 1.07 1.76 1.67 .81 .27 .00 6.98 i
(1) PERCENT OF ALL OOOD OBSERVATIONS FOR THIS PAGE (2)aPERCDTP OF ALL OOOD OBSERVATICHS FOR 'ntIS PERIOD Ce CALM (WIND SPEED LESS THAN OR EQUAL M .95 MPIO l
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SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBLTPION (210-FOOT 70WER) 43.0 FT WIND DATA STABILITY CLASS ALL CLASS FREQUENCY (PERCENT) = 100.00 WIND DIRECTION FROM EPEED N NNE NE ME E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL 7DTAL MPH l
CALM 2 1 1 0 1 0 0 0 0 1 3 3 2 4 0 1 0 19 (1) .02 .01 .01 .00 .01 .00 .00 .00 .00 .01 .04 .04 .02 .05 .00 .01 .00 .23 (2) .02 .01 .01 .00 .01 .00 .00 00 .00 .01 .04 .04 .02 .05 .00 .01 .00 .23 C-3 75 55 51 97 42 37 29 34 65 74 115 178 275 247 146 103 0 1621 (1) .89 .66 .61 1.16 .50 .44 .35 .38 .77 .88 1.37 2.12 3.28 2.94 1.74 1.23 .00 19.32 (2) .89 .66 .61 1.16 .50 .44 .35 .38 .77 .88 1.37 2.12 3.28 2.94 1.74 1.23 .00 19.32 4-1 156 79 86 131 159 90 155 181 129 193 256 390 390 365 327 160 0 3247 (1) 1.86 .94 1.03 1.56 1.90 1.07 1.85 2.16 1.54 2.30 3.05 4.65 4.65 4.35 3.90 1.91 .00 38.70 (2) 1.86 .94 1.03 1.56 1.90 1.07 1.85 2.16 1.54 2.30 3.05 4.65 4.65 4.35 3.90 1.91 .00 38.70 8-12 118 58 91 143 167 116 148 128 64 112 208 191 249 351 242 74 0 2460 (1) 1.41 .69 1.08 1.70 1.99 1.38 1,76 1.53 .76 1.33 2.48 2.28 2.97 4.18 2 . 8.8 .88 .00 29.32 (2) 1.41 .69 1.08 1.70 1.99 1.38 1.76 1.53 .76 1.33 2.48 2.28 2.97 4.18 2.88 .88 .00 29.32 13-18 19 6 45 56 32 16 6 36 15 39 22 43 98 209 190 22 0 854 (1) .23 .07 .54 .67 .38 .19 .07 .43 .18 .46 .26 .51 1.17 2.49 2.26 .26 .00 10.18 (2) .23 .07 .54 .67 .38 .19 .07 .43 .18 .46 .26 .51 1,17 2.49 2.26 .26 .00 10.18 19-24 1 2 33 23 14 0 0 5 2 4 1 0 2 32 31 1 0 151 (1) .01 .02 .39 .27 .17 .00 .00 .06 .02 .05 .01 .00 .02 .38 .37 .01 .00 1.80 (2) .01 .02 .39 .27 .17 .00 .00 .06 .02 .05 .01 .00 .02 .38 .37 .01 .00 1.80 GT 24 0 0 21 to 0 0 0 0 0 0 0 0 0 6 1 0 0 38 (1) .00 .00 .25 .12 .00 .00 .00 .00 .00 .00 .00 .00 .00 .07 .01 .00 .00 .45 (2) .00 .00 .25 .12 .00 .00 .00 .00 .00 .00 .00 .00 .00 .07 .01 .00 .00 .45 ALL SPEEDS 371 201 328 460 415 259 J38 382 275 423 605 805 1016 1214 937 361 0 8390 (1) 4.42 2.40 3.91 5.48 4.95 3.09 4.03 4.55 3.28 5.04 1.21 9.59 12.11 14.47 11.17 4.30 .00 100.00 (2) 4.42 2.40 3.91 5.48 4.95 3.09 4.03 4.55 3.28 5.04 7.21 9.59 12.11 14.47 11.17 4.30 .00 100.00 (1)= PERCENT OF ALL GOOD OBSERVATIONS FOR 7HIS PAGE (21sPERCENT OF ALL GOOD OBSERVATIONS FOR THIS FERIOD Ce CALM (WIND SPEED LESS THAN OR EQUAL TO .95 MPH) l l
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SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENC1f DISTRIBUTION (210-FOOT TOIER) '
209.0 FT WIND DATA STABILITif CLASS A =
CLASS FREQUENC1f (PERCENT) 1.0f I
WIND DIRECTION FROM SPEED N NNE NE ENE E ESE MPH SE SSE S SSW SW WSW W W NW NNW VRBL TOTAL 1 CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 00 .00 .C3 .00 00 .00 .00 .00 (2) .00 .00 .00 .00 .00 I
.00 .00 .00 .00 .00 .00 .00 .00 .00 ' '. 0 0 .00 .00 .00 .00 .00 C-3 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 i (1) .00 .00 .00 .00 .00 .00 .00 .00 1.14 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 1.14
.00 .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .01 l 4-7 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 l
0 1 (1) .00 .00 00 .00 .00 .00 1.14 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 1.14 l
(2) .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 01 8-12 1 0 0 3 0 0 16 2 0 3 5 4 2 0 0 0 0 36 (1) 1.14 .00 .00 3.41 .00 .00 18.18 2.27 .00 3.41 5.68 4.55 2.27 .00 .00 .00 .00 (2) .01 .00 .00 40.91
.04 .00 .00 .19 .02 .00 .04 .06 .95 .02 .00 .00 .00 .00 .44 l
13-18 1 0 0 0 0 0 14 6 0 4 7 6 2 4 0 0 1 45 (1) 1.14 .00 .00 .00 .00 .00 25.91 6.82 .00 4.55 7.95 6.82 2.27 4.55 1.14 .00 .00 (2) .01 .00 .00 51.14
.00 .00 .00 .27 .07 .00 .05 .08 .07 .02 .05 .01 .00 .00 .54 19-24 0 0 0 0 0 0 1 1 0 0 1 0 0 1 1 0 0 5 (1) .00 ,00 .00 .00 .00 .00 1.14 1.14 .00 .00 1.14 .00 .00 1.14 1.14 .00 .00 5.68 (2) .00 .00 .00 .00 .00 .00 .01 .01 ,00 .00 .01 .00 .00 .01 .01 .00 .00 .06 OT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 2 0 0 3 0 0 32 9 1 7 13 10 4 5 2 0 0 88 (1) 2.27 .00 .00 3 41 .00 .00 36.36 10.03 ". . t t $ 14.77 11.36 4.55 5.68 2.27 .00 .00 100.00 (2) .02 .00 .00 .h .uu .00 .39 .11 .* 8 .16 .12 .05 .06 .02 .00 .00 1.06 (1)* PERCENT OF ALL 000D OBSERVATIONS FOR THIS PAGE l
(2)ePERCENT OF ALL GOOD OBSERVATIONS FOR M{IS PERIOD Cs CA1Jt (WIND SPEED LESS DIAN OR EQUAL to .95 MPH) )
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SEAtROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DIS 11t!BUT10N (210-FOOT WWElt) 209.0 FT WIND DATA STABILITY CLASS B CLASS FREQUENCY (PERCDTU m 2.16 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW MPH tJW t@M VRBL TOTAL CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 t
+
t C-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 4-7 0 0 0 0 1 0 0 0 0 2 2 0 0 0 0 0 0 5 i
(1) .00 .00 .00 .00 .56 .00 .00 .00 .00 1.12 1.12 .00 .00 .00 .00 .00 .00 2.79 (2) .00 .00 .00 .00 .01 .00 .00 .00 .00 .02 .02 .00 .00 .00 .00 .00 .00 .06 !
l 8-12 1 2 1 2 3 6 21 2 2 3 12 10 5 4 4 1 0 79 I l
(1) .56 1.12 .56 1.12 1.68 3.35 11.73 1.12 1.12 1,68 6.70 5.59 2.79 2.23 2.23 .56 .00 44.13 (2) .01 .02 .01 .02 .04 .07 .25 .02 .02 .04 .15 .22 .06 .05 .05 .01 .00 .95 13-18 2 1 6 1 2 0 6 5 1 4 11 8 12 6 2 0 0 67 (1) 1.12 .56 3.35 .56 1.12 .00 3.35 2.79 .56 2.23 6.15 4.47 6.70 3.35 1.12 .00 .00 37.43 (2) .02 .01 .07 .01 .02 .00 .07 .06 .01 .05 .13 .10 .15 .07 .02 .00 .00 .81 19-24 0 0 0 0 0 0 0 0 2 2 0 3 3 6 8 0 0 24 l (1) .00 .00 .00 .00 .00 .00 .00 .00 1.12 1.12 .00 1,68 1,68 3.35 4.47 .00 .00 13.41 (2) .00 .00 .00 .00 .00 .00 .00 .00 .02 ,02 .00 .04 .04 .07 .30 .00 .00 .29 GT 24 0 0 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 4 (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .56 .00 .00 .56 1.12 .00 .00 .00 2.23 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .01 .02 .00 .00 .00 .05 ALL SPEEDS 3 3 7 3 6 6 27 7 5 12 25 21 21 18 14 1 0 179 (1) 1,68 1.68 3.91 1,68 3.35 3.35 15.08 3.91 2.79 6.70 13.97 11.73 11.73 10.06 7.82 .56 .00 100.00 (2) .04 .04 .08 .04 .07 .07 .33 08 .06 .15 .30 .25 .25 .22 .17 .01 .00 2.16 (llePERCEtTF OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)* PERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD Co CAIN (WIND SPEED 1.ESS THAN OR EQUAL 10 .95 MPH) l 1
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l SEABRf 0K JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWEPJ 300.0 FT WIND DATA STABILITY CLASS C CLASS FREQUENCY (PERCENT) = 4.48 WIND DIRECTION FROM OPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL 'IVTAL HPH CALM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 . 0 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 C-3 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 2 (1) .00 .00 .00 .00 .27 .00 .00 .00 .00 .00 .00 .00 .00 .27 .00 .00 .00 .54 (2) .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .02 4-7 1 0 1 5 3 1 1 1 0 2 1 0 3 3 1 1 0 24 (1) .27 .00 .27 1.35 ,81 .27 .27 .27 .00 .54 .27 .00 .81 .81 .27 .27 .00 6.47 (2) .01 .00 .01 .06 .04 .01 .01 .01 .00 .02 .01 .00 .04 .04 .01 .01 .00 .29 8-12 4 2- 2 13 26 9 26 4 2 8 14 17 19 16 5 1 0 168 (1) 1.08 .54 .54 3.50 7.01 2.43 7.01 1.08 .54 2.16 3.17 4.58 5.12 4.31 1.35 .27 .00 45.28 (2) .05 .02 .02 .26 .31 .11 .31 .05 .02 .10 .17 .21 .23 .19 .06 .01 .00 2.03 13-18 0 0 1 5 3 1 10 4 0 4 12 10 20 25 12 0 0 107 (1) .00 .00 .27 1.35 .81 .27 2.70 1.08 .00 1.08 3.23 2.70 5.39 6.74 3.23 .00 .00 28.84 (2) .00 .00 .01 .06 .04 .01 .12 .05 .00 .05 .15 .12 .24 .30 .15 .00 .00 1.29 19-24 0 0 0 0 0 0 2 0 0 2 1 4 7 20 20 0 0 56 (1) .00 .00 .00 .00 .00 .00 .54 .00 .00 .54 .27 1. 68t 1.89 5.39 5.39 .00 .00 15.09 (2) .00 .00 .00 .00 .00 .00 .02 .00 .00 .02 .01 .05 .08 .24 .24 .00 .00 .68 GT 24 0 0 0 0 1 0 0 0 0 1 0 1 1 5 5 0 0 14 (1) .00 .00 .00 .00 .27 .00 .00 .00 .00 .27 .00 .27 .27 1.35 1.35 .00 .00 3.77 (2) .00 .00 .00 .00 .01 .00 .00 .00 .00 .01 .00 .01 .01 .06 .06 .00 .00 .17 04LL SPEEDS 5 2 4 23 34 11 39 9 2 17 28 32 50 70 43 2 0 371 (1) 1.35 .54 1.08 6.20 9.16 2.96 10.51 2.43 .54 4.58 7.55 8.63 13.48 18.87 11.59 .54 .00 100.00 (2) .06 .02 .05 .28 .41 .13 .47 .11 .02 .21 .34 .39 .60 .85 .52 .02 .00 4.48 (1)=PEDCENT OF ALL GOOD JBSERVATIONS FOR THIS PAGE (3)oPERCENT OF ALL 0009 OBSERVATIONS FOR THIS PERIOD Co CAIJ4 (WIND SPEEP LESS 'lHAN OR EQUAL TO .95 MPH)
(
i I
SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT W WER) 209.0 FT WIND DATA STABILITY CLASS D CLASS FREQUDJCY (PERCENT)
- 45.29 WIND DIRECTION FROM SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL M TAL MPH CALM 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 (1) .03 .00 .00 . ")0 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .01 .00 .00 .03
.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .01 C-3 11 9 8 19 7 3 10 4 4 5 6 6 10 4 5 7 0 118 (1) .29 .24 .21 .51 .19 .08 .27 .11 .11 .13 .16 .16 .27 .11 .13 .19 .00 (2) .13 .11 .10 3.15
.23 .08 .04 .12 .05 .05 .06 .07 .07 .12 .05 .06 .08 .00 1.43 4-7 63 31 46 62 59 35 58 39 25 34 30 35 41 40 59 57 0 714 (1) 1.68 .83 1.23 1.65 1.57 .93 1.55 1.04 .67 .91 .80 .00 (2) .76 .37 .56
.93 1.09 1.07 1.57 1.52 19.06
.75 .71 .42 70 .47 .30 .41 .36 .42 .50 .48 .71 .69 .00 8.63 8-12 128 62 65 82 78 81 97 86 65 59 99 90 92 127 125 61 0 1397 (1) 3.42 (2) 1 55 1.65
.75 1.13
.79 2.19
.99 2.08
.94 2.16
.98 2.59 2.30 1.73 1.57 2.64 2.40 2.46 3.39 3.34 1.63 1.17 1.04 .79 .71 1.20 1.09 1.11 1.53 1.51 .74
.00
.00 37.28 16.88 13-18 80 61 49 38 22 22 30 34 22 42 62 41 86 175 122 45 0 931 (1) 2.14 1.63 1.31 1.01 .59 .59 .80 .91 .59 1.12 1.65 1.09 2.30 4.67 3.26 1.20 .00 24.85 (2) .97 ,74 .59 .46 .27 .27 .36 .41 .27 .51 .75 .50 1.04 2.12 1.47 .54 .00 11.25 19-24 12 13 34 14 16 9 5 5 3 1 4 22 65 112 97 0 3 421 (1) .32 .35 .91 .37 .43 .24 .13 .13 .08 .19 .11 .59 1,73 2.99 2.59 .08 .00 11.24 (2) .15 .16 .41 .17 .19 .11 .06 .06 .04 .08 .05 .27 .79 1.45 1.17 .04 .00 5.09 CT 24 1 0 36 28 to 0 0 'O 0 0 0 2 21 46 19 2 0 165 (1) .03 .00 .96 .75 .27 .00 .00 .00 .00 .00 .00 .05 .56 1.23 .51 .05 .00 4.40 (2) .01 .00 .44 .34 .12 .00 .00 .00 .00 .00 .00 .02 .25 .56 .23 .02 .00 1.99 ALL EPEEDS 296 176 238 243 192 150 200 168 119 147 201 196 315 504 427 175 0 3747 (1) 7.90 4.70 6.35 6.49 5.12 4.00 5.34 4.48 3.18 3.92 5,36 5.23 8.41 13.45 11.40 4.67 .00 100.00 (2) 3.58 2.13 2.88 2.94 2.32 1.81 2.42 2.03 1.44 1.78 2.43 2.37 3.81 6.09 5.16 2.12 .00 45.29 (1)* PERCENT OF ALL OOOD OBSERVATIONS FOR 'D{IS PAOE (2)ePERCENT OF ALL COOD OBSERVATIONS FOR 'IMIS PERIOD Ce CALM (WIND SPEED LESS THAN OR EQUAL TO .95 MPH)
. . _ _ - . . _ .. . _ _ . - . _ _ . _ - _ . _ . _ . .__o..m. . _ _ . . . .
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1 SEAIROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT TOWER)
- 209.0 FT WIND DATA STABILITY CLASS E CLASS FREQUDJCY (PERCENT) = 30.28 WIND DIRECTION FROM
, SPEED N NNE NE DIE E ESE SE SSE S SSW SW WSW W WIM NW NNW VRBL 1DTAL MPH
'. CALM 0 0 0 1 0 0 0 0 1 1 1 1 0 0 0 0 0 5 1
(1) .00 .00 .00 .04 .00 .00 .00 .00 .04 .04 .04 .04 .00 .00 .00 .00 .00 .20 (2) .00 .00 .00 .01 .00 .00 .00 .00 .01 .01 .01 .01 .00 .00 .00 .00 .00 .06 C-3 9 8 10 10 10 4 6 8 3 3 3 4 5 3 6 6 0 98 i (1) .36 .32 .40 .40 .40 .36 .24 .32 .12 .12 .12 .26 .20 .12 .24 .24 .00 3,91
] (2) .11 .30 .12 .12 .12 .05 .07 .30 .04 .04 .04 .05 .06 .04 .07 .07 .00 1.18
~ j 4-7 25 24 31 29 18 22 35 27 32 42 36 29 27 29 32 26 0 464 l
i (1) 1.00 ,96 1.24 1.16 .72 .88 1.40 1.08 1.28 1,68 1.44 1.16 1.08 1.16 1.28 1.04 .00 18.52 i (2) .30 .29 .37 .35 .22 .27 .42 .33 .39 .51 .44 .35 .33 .35 .39 .31 .00 5.61 ]
8 12 44 33 29 20 15 16 29 54 64 86 135 116 90 133 104 52 0 1020 (1) l 1.76 1.32 1.16 .80 .60 .64 1.16 2.16 2.55 3.43 5.39 4.63 3.59 5.31 4.15 2.08 .00 40.72 (2) .53 .40 .35 .24 .18 .19 .3s .65 .77 1.04 1.63 1.40 1.09 1.61 1.26 .63 .00 12.33 13 18 11 7 14 12 6 9 6 27 34 45 101 89 101 148 76 9 0 695 (1) .44 .28 .56 .48 .24 .36 .24 1.08 1.36 1.80 4.03 3.55 4.03 5.91 3.03 .36 .00 27.74 (2) .13 .08 .17 .35 .07 .11 .07 .33 .41 .54 1.22 1.08 1.22 1.79 .92 .11 .00 8.40 19-24 13 4 6 9 5 0 0 16 8 25 6 2 30 40 9 0 0 173 (1) .52 .26 .24 .36 .20 .00 .00 .64 .32 1.00 .24 .08 1.20 1.60 .36 .00 .00 6.91 (2) .16 .05 .07 .11 .06 .00 .00 .19 .10 .30 .07 .02 .36 .48 .11 .00 .00 2.09 OT 24 1 5 4 8 3 1 0 12 1 2 1 0 3 9 0 0 0 50 (1) .04 .20 .36 .32 .12 .04 .00 .48 .04 .08 .04 .00 .22 .36 .00 .00 .00 2.00 (2) .01 .06 .05 .10 .04 .01 .00 .15 .01 .02 .01 .00 .04 .11 .00 .00 .00 .60 A1.L EPEEr'3 103 81 94 89 57 52 76 144 143 204 283 241 256 362 227 93 0 2505 (1) 4.11 3.23 3.75 3.55 2.28 2.08 3.03 5.75 5.71 8.14 11.30 9.62 10.22 14.45 9.06 3.71 .00 100.00 (2) 1.24 .98 1.14 1.08 .69 .63 .92 1.74 1.73 2.47 3.42 2.91 3.09 4.38 2.74 1.12 .00 30.28 (1)*PERCDiT OF ALL GOOD OBSERVATIONS FOR THIS PAGE (2)mPERCENT OF ALL GOOD OBSERVATIONS FOA THIS PERIOD Co CAIM (WIND SPEED LESS 1HAN OR EQUAL to .95 MPH)
~ . _ _ . _ _ . _ . - ._..m. . _ . . _ . .__..m._ _ ._.1 _ _. . . . _ . _ .__ ..___m SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBUTION (210-FOOT 1DWER) 209.0 FT WIND DATA STABILITY CLASS F CLASS FRFQUENCY (PERCENT) a 9.75 WIND DIRECTION FROM i SPEED N NNE NE ENE E ESE SE SSE S SSW WSW W WNW 1*W NW NNW VRBL TOTAL NPH CAIJi 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) ,00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 00 .00 .00 .00 .00 .00 C-3 4 1 1 2 2 2 5 3 8 3 7 2 1 3 4 0 0 48 (1) .50 .12 .12 .25 .25 .25 .62 .37 .99 .37 .87 .25 .12 .37 .50 .00 .00 5.95 (2) .05 .01 .01 .02 .02 .02 .06 .04 .30 .04 .08 .02 .01 .04 .05 .00 .00 .58 4-7 8 6 7 7 8 8 14 14 15 8 20 22 18 15 15 '
7 0 192 (1) .99 .74 .87 .87 .99 .99 1.73 1.73 1.86 .99 2.48 2.73 2.23 1.86 1.06 .a7 .00 23.79 (2) .10 .07 .08 .08 .10 .10 .17 .17 .18 .10 .24 .27 .22 .18 .38 .08 .00 2.32 8-12 23 8 2 5 1 2 10 12 26 25 44 46 37 78 33 35 0 387 l (1) 2.85 . 99 .25 .62 .12 .25 1.24 1.49 3.22 3.10 5.45 5.70 4.58 9.67 4.09 4.34 .00 47.96 (2) .28 .30 .02 .06 .01 .02 .12 .15 .31 .30 .53 .56 .45 .94 .40 .42 .00 4.68 )
13-18 5 2 0 1 2 0 0 6 2 6 14 29 23 42 27 10 0 169 (1) .62 .25 .00 .12 .25 .00 .00 .?4 .25 74 1.73 3.59 2.85 5.20 3.35 1.24 .00 20.94 (3) .06 .02 .00 .01 .02 .00 .00 .07 .02 .07 .17 .35 .28 .51 .33 .12 .00 2.04 19-24 1 @ 0 0 0 0 0 2 0 0 0 0 0 1 0 5 0 9 (1) .12 .00 .00 .00 .00 .00 .00 .25 .00 .00 .00 .00 .00 .12 .00 .62 .00 1.12 (2) .01 .00 .00 .00 .00 .00 .00 .02 .00 .00 .00 .00 .00 .01 .00 .06 .00 .31 OT 24 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 2 (1) .00 .00 .00 .00 .00 .00 .00 .22 .00 .00 .00 .00 .00 .00 .00 .12 .00 .25 (2) .00 .00 .00 .00 .00 .00 .00 .01 .00 .00 .00 .00 .00 .00 .00 .01 .00 .02 ALL SPEEDS 41 17 10 15 13 12 29 38 51 42 85 99 79 139 79 58 0 807 (1) 5.08 2.11 1.24 1.86 1.61 1.49 3.59 4.71 6.32 5.20 10.53 12.27 9.79 17.22 9.79 7.19 .00 100.00 (2) .50 .21 .12 .38 .16 .15 .35 .46 .62 .51 1.03 1.20 .95 1.68 .95 .70 .00 9.75 (ll= PERCENT OF ALL COOD OBSERVATIONS FOR THIS PAGE (3)oPERCENT OF ALL GOOD ODSERVATIONS FOR THIS PERIOD C= CALM (WIND SPEED LESS THAN OR EQUAL 'Io .9f MPH) l 1
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l SEABROOK JAN96-DEC96 MET DATA JOINT FREQUENCY DISTRIBtfrION (210+ FOOT TOWER) f 209.0 FT WIND DATA STABILITY CLASS G CLASS FREQUENCY (PERCr/*) = 6.97 WIND DIRECTION FROM i
SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL 10rAL MPH
. CALM 1 0 0 0 0 0 0 1 0 0 1 0 0 0 4 0 0 7 (1) .17 .00 C .00 .00 .00 .00 .17 .00 .00 .17 .00 .00 .00 .69 .00 i
(2) .00 .00 .00 1.21 l ,01 .00 .00 .00 .00 .01 .00 .00 .01 .00 .00 .00 .05 .00
' .00 .08 l C-3 1 6 5 6 3 4 1 7 10 4 4 3 4
' 5 2 4 0 69 (1) .17 1.04 .87 1.04 .52 .69 .17 1.21 1.73 .69 .69 .52 .69 .87 .35 .69 .00 (2) .01 .07 .06 .07 11.96 j .04 .05 .01 .08 .12 .05 .05 .04 .05 106 .02 .05 .00 .83 4-7 7 1 5 4 5 0 8 to 13 16 32 22 16 18 22 9 0 188 i (1) 1.21 .17 .87 .69 .87 .00 1.39 1.73 2.25 2.77 5.55 3.81 2.77 3.12 3.81 1,56 (2) .08 .01 .06 .00 32.58 l .05 .06 .00 .10 .12 .16 .19 .39 .27 .19 .22 .27 .11 .00 2.27 8-12 17 4 1 1 1 1 2 8 15 13 25 28 36 37 24 17 0 230 (1) 2.95 .69 .17 .17 .17 .17 .35 1.39 2.60 2.25 4.33 4.85 6.28 (2) .31 .05 6.41 4.16 2.95 .00 39.86 l .01 .01 .01 .01 .02 .10 .18 .16 .30 .34 .44 .45 .29 .21 .00 2.78 13-18 7 3 0 0 0 0 0 3 1 6 5 8 14 11 13 11 0 82 (1) 1.21 .52 .00 .00 .00 .00 .00 .52 .17 1.04 .87 1.39 2.43 1.91 2.25 1.91 .00 14.21 (2) .06 .04 . 00* .00 .00 .00 .00 .04 .01 .07 .06 .10 .17 .13 .16 .13 .00 .99 l 19-24 0 0 0 0 0 0 0 0
)
0 0 0 0 0 0 1 0 0 1 l (1) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .17 .00 .00 .17 (2) .00 .00 .00 .00 .00 .00 .00 .00 .0L .00 .00 .00 .00 .00 .01 .00 .00 .01 1
GT 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) .00 .00 .00 .00 .00 .00 .00 .00 ,00 .00 .00 .00 .00 .00 .00 .00 .00 .00 (2) .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 ALL SPEEDS 33 14 11 11 9 5 11 29 39 39 67 61 70 71 66 41 0 577 (1) 5.72 2,43 1,91 1.91 1.56 .87 1.91 5.03 6.76 6.76 11.61 10.57 12.13 12.31 11.44 7.11 .00 100.00 (2) .40 .17 .13 .13 .11 .06 .13 .35 .47 .47 .81 .74 .85 .86 .80 .50 .00 6.97 (1)= PERCENT OF ALL GOOD OBSERVA".' IONS FOR THIS PACE i
(2)sPERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD Cm CALM (WIND SPEED LESS Tip.N OR EQUAL to .95 MPH) 4 1
i
_ . . _ . _ __ _ . _ _ _-._~____._____m . .m._. _ _ _ _ _ . _ _ - _ . _ . . _ . . _ m s .
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i SEABROOK JAN96-DEC96 MET DATA JOnrT FREQUDKY DISTRIBUTION (210-FOOT TOWER) 209.0 FT WIND DATA STABILITir CLASS ALL CLASS FREQUENCY (PERCDrr) = 100.00 WIND DIRECTION FROM i
4
. SPEED N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VRBL TVTAL i MPH 1
CALM 2 0 0 1 0 0 0 1 1 1 2 1 0 0 i 4 0 0 13 (1) .02 00 .00 .01 .00 .00 .00 .01 .01 .01 .02 .01 .00 .00 .05 .00 .00 .16 i (2) .02 00 .00 .01 .00 .00 .00 .01 .01 .01 .02 .01 .00 .00 .05 .00 .00 .16 l a
C-3 25 24 24 37 23 13 22 22 26 15 20 15 20 16 17 17 0 336 (1) .30 .29 .29 .45 .28 .16 .27 .27 .31 .18 .24 .18 .24 .19 .21 .21 .00 4.06
)1 (2) .30 .29 .29 .45 .28 .16 .27 .27 .31 .38 .24 .18 .24 .19 .21 .21 .00 4.06 f 4-7 104 62 90 107 94 66 117 91 85 104 121 108 105 105 129 100 0 1588
, (1) 1.26 .75 1.09 1.29 1.14 .80 1.41 1.10 1.03 1.26 1.46 1.31 1.27 1.27 1.56 1.21 .00 19.19 (2) 1.26 .75 1.09 1.29 1.14 .80 1.41 1.10 1.03 1.26 1.46 1.31 1.27 1.37 1.56 1.21 .00 19.19 8-12 218 111 100 126 124 115 201 168 174 197 334 311 281 395 295 167 0 3317 i
'! (1) 2.63 1.34 1.22 1.52 1.50 1.39 2.43 2.03 2,10 2.38 4.04 3.76 3.40 4.77 3.57 2.02 .00 40.09 (2) 2.63 1.34 1.21 1.52 1.50 1.39 2.43 2.03 2.10 2.38 4.04 3.76 3.40 4.77 3.57 2.02 .00 40.09
(
13-18 106 74 70 57 35 32 66 85 60 111 212 191 258 411 253 75 0 2096 i (1) 1.28 .._89 _ .85 .69 .42 .39 .80 1.03 .73 1.34 2.56 2.31 3.12 4.97 3.06 .91 .00 25.33
. (2) 1.28 .89 .85 .69 .42 .39 .80 1 03 .73 1.34 2.56 2.31 3.12 4.97 3.06 .91 .00 25.33 19-24 26 17 40 23 21 9 8 24 13 36 12 31 105 180 136 8 0 689 l (1) .31 .21 .48 .28 .25 .11 .10 .29 .16 .44 .15 .37 1.27 2.18 1.64 .10 .00 8.33 i (2) .31 .21 .48 .28 .35 .31 .10 .29 .16 .44 .25 .37 1.27 2.18 1.64 .10 .00 8.33 i
! OT 24 2 5 40 36 14 1 0 13 1 4 1 3 26 62 24 3 0 235 (1) .02 .06 .48 .44 .17 .01 ,00 .16 .01 .05 .01 .04 .31 .75 .29 .04 .00 2.84 (2) .02 .06 .48 .44 .17 .01 .00 .36 .01 .05 .01 .04 .31 .75 .29 .04 .00 2.84 ALL SPEEDS 483 293 364 387 311 236 414 404 360 468 702 660 795 1169 858 370 0 8274 4
(1) 5.84 3.54 4.40 4.68 3.16 2.85 5.00 4.88 4.35 5.66 8.48 7.98 9.61 14.13 10.37 4.47 .00 100.00 (2) 5.84 3.54 4.40 4.68 3.7e 2.85 5.00 4.88 4.35 5.66 8.48 7.98 9.61 14.13 10.37 4.47 .00 100.00 4 (1)sPERCElff OF ALL OOOD OBSEPVATIONS FOR THIS PAGE 4 (21sPERCENT OF ALL GOOD OBSERVATIONS FOR THIS PERIOD 4 C= CALM (WIND SPEED LESS THAN OR EQUAL 1V .95 MPH) i a
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ENCLOSURE 3 TO NYN-97037 5
4 4
s Seabrook Station
- Supplemental Effluent Release Report l Radiological Impact Assessment For 1996 2
I. Summarv 1
i' Doses resulting from liquid and gaseous effluents from Seabrook Station during 1996 were calculated in accordance with Method II as dermed in the Station Offsite Dose Calculation Manual (ODCM). The calculational methods used follow the models in Regulatory Guide 1.109. The calculations included maximum whole body doses and organ doses from all liquid releases, maximum offsite organ doses resulting from airborne iodines, tritium and particulate radionuclides, and maximum offsite beta air and gamma air doses from airborne noble gases. Doses were also calculated l for the special receptor locations inside the site boundary: the Science and Nature Center and the j 1
" Rocks". In addition, the direct dose from plant operation was calculated. These doses from effluent releases and direct shine during 1996 are summarized in Table A.
The calculated maximum annual total body dose and the maximum organ dose from liquid i
effluents each represent 0.01% of the annual dose limits established by Technical I Specification 3.11.1.2 (3 mrem total body and 10 mrem organ). The calculated annual maximum dose from airborne iodine, tritium and particulate radionuclides for offsite receptor locations represents 0.03% of the dose limit established by Technical Specification 3.11.2.3 (15 mrem organ), j whereas the calculated maximum annual beta air and gamma air doses from airborne noble gases for ufste receptor locations represent 0.003% and 0.004% of the dose limits established by Technical Specification 3.11.2.2 (20 mrad beta air and 10 mrad gamma air). The calculated annual beta air and gamr.aa air doses from airbome noble gases for the Science and Nature Center were 0.000006% and 0.000005% of the limits in Technical Specification 3.11.2.2. Whereas for the " Rocks" the annual doses were 0.0004% and 0.0002% of the limits in Technical Specification 3.11.2.2. The calculated j annua? organ doses from airborne iodines, tritium and particulate radionuclides at the Science &
Nature Center and the " Rocks" were, respectively,0.00001% and 0.0008% of the limits in Technical Specification 3.11.2.3.
comucammmmn
.- - -_ _ .. -_ .. .-__-. -- _ ~ - - - . . - - - - - . . - . . _ . .
1 The sum of the maximum whole body doses from all exposure pathways for the liquid and gaseous effluents, plus the direct whole body dose from station operation, was 5.68E-3 mrem to a hypothetical individual. This whole body dose represents 0.02% of the annual whole body dose limit l (25 mrem) for a member of the public as set forth in 40CFR190, and demonstrates compliance with i
that code. The maximum organ dose from all exposure pathways including direct dose was 6.32E-3 mrem. This represents 0.03% of the annual organ dose limit of 25 mrem to other organs,
- as set forth in 40CFR190.
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II. Method for Calculatine the Total Body and Maximum Orean Doses Resultine from Liauid Releases 1 '
l The computer code IDLE, which is consistent with the models in Regulatory Guide 1.109 (Reference 1), was used to calculate the total body and organ doses resulting from liquid effluents from Seabrook Station. The general equations A-3, A-4, A-5, A-6 and A-7 from Regulatory Guide 1.109 are applied in IDLE. The total body doses and the organ doses are evaluated for each of the f .
four age groups (i.e., infant, child, teen and adult) to determine the maximum total body dose and I maximum organ dose via all existing exposure pathways (i.e., fish and aquatic invertebrate ingestion, and shoreline exposure) to an age-dependent individual. The values for the various factors considered in equations A-3 through A-7 have been taken from Regulatory Guide 1.109 and the Station OfTsite ;
Dose Calculation Manual (ODCM)(Reference 2). The specific values used for the usage factor l (U,,), mixing ratio (M,), bioaccumulation factor (B,,), dose factors (Dgg), transit time (t,), transfer constant from water to sediment (K,), exposure time for sediment or soil (ts), and shore width factor (W) are provided by the reference sources as summarized in Table B. The flow rate of the liquid efiluent (F) and the radionuclide activities (Q,) are measured specifically prior to each liquid release.
i The values for halflives for radionuclides (T)i and their radioactive decay constants (1) have been 3
i taken from Kocher (Reference 3). I l
i The exposure pathways considered in the calculations of total body and maximum organ doses resulting from liquid discharges from Seabrook Station have been limited to ingestion of aquatic j
- foods and exposure to shoreline deposits. The dose calculations do not include the ingestion of potable water and irrigated vegetation as potential exposure pathways because the liquid efiluents i from the plant are discharged into salt water.
1 i
4 Table A presents the calculated liquid pathway doses for each calendar quarter and also the j total for the year. I i
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Ill. Method for Calculating the Gamma and Beta Air Doses from Noble Gases The computer codes AIRAD and AEOLUS 2 were used for the calculation of both the gamma and beta air doses resulting from noble gases present in gaseous effluents released from Seabrook Station. The features and use of AEOLUS 2 for the calculation of atmospheric dispersion factors (i.e., Chi /Q factors) from recorded meteorological data (i.e., meteorological data measurements taken during the time of the release) are described in section B.7.3.2 of Seabrook's ODCM. Meteorological dispersion factors concurrent with periods of gas releases are calculated by AELOUS 2 and used in the gamma and beta air dose calculations by AIRAD. AIRAD is consistent with the models presented in Regulatory Guide 1.109, general equations B-4 and B-5. The values for the dose factors, DFJ and DF/, have been taken from Table B-1 in Regulatory Guide 1.109.
Table A lists the calculated air doses for each calendar quarter, and the total for the year.
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IV. Method for Calculatine the Critical Organ Dose Resulting from lodines.
Tritium and Particulates with T nGreater than 8 Days in Gaseous Releases The computer codes AEOLUS 2 and ATMODOS were used for the calculation of the organ doses resulting from iodines, tritium and particulates with half-lives greater than 8 days present in gaseous efiluents released from Seabrook Station. The features and use of AEOLUS 2 for the calculation of atmospheric dispersion factors (i.e., Chi /Q factors) from recorded meteorological data (i.e., meteorological data measurements taken during the time of the release) are described in section B.7.3.2 of Seabrook's ODCM. Meteorological dispersion factors concurrent with periods of gas releases were calculated by AEOLUS 2 and used in the dose calculations by ATMODOS.
ATMODOS calculates the organ doses ( i.e., dose to bone, liver, kidney, lung, lower large intestine, total body, and skin) due to the presence of radionuclides other than noble gases in gaseous efiluents, and is consistent with the models presented in Appendix C of Regulatory Guide 1.109. The pathways considered in the dose calculations are the ground plane, inhalation, and ingestion of stored vegetables, fresh garden vegetables, milk and meat. The critical organ dose is determined for the offsite location (e.g., site boundary, nearest resident or farm) of receptor pathways as identified in the most recent annual land use census. The total body dose contributions via the ground plane and j inhalation pathways as calculated by ATMODOS have also been included in the total body dose estimates for the special receptor locations inside the site boundary. Equations C-1 through C-13 are applied in the ATMODOS calculation of the critical organ doses. The input data and assumptions are those provided in Appendix C of Regulatory Guide 1.109, except where site-specific data and l assumptions have been identified in Tables B.7-2 and B.7-3 of Seabrook's ODCM. These two j ODCM tables provide the options for special conditions, depending on the type of receptor being l evaluated at a specific location, that are to be applied in Method 11 calculations. The receptor type controls the exposure pathways for calculational purposes. The receptor types used in the dose calculations were a resident receptor (which considered the ground plane, inhalation and vegetable ingestion exposure pathways), a milk receptor (which considered the ground plane, inhalation, vegetable and milk ingestion exposure pathways) and a boundary and radius receptor (both of which considered the ground plane and inhalation exposure pathways). The resident and milk receptor locations for the various sector were based on the 1996 land use census data for Seabrook Station moucammu wm l
(Table D). The radius receptor locations were applied at several distances in the prevalent downwind sectors to insure that the location of the maximum doses were not overlooked.
l Depletion of the plume during transport is considered by AEOLUS 2 in the calculations of !
atmospheric dispersion factors (e.g., calculation of[X/Q] ). A shielding factor (Sy) of 0.7 is applied for residential structures. The source for the values of the various factors used in equations C-1
)
- through C-13 are summarized in Table C.
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V. References
- 1. Calculation of Annual Doses to Man from Routine Releases of Reactor EfIluents for the Purposes ofEvaluating Compliance with 10CFR Part $0, Appendix I, Reg. Guide 1.109, Rev 1, Oct.1977.
- 2. Station Offsite Dose Calculation Manual, Rev 15.
- 3. Kocher, D.C., Dose-Rate Conversion Factors for Exposure to Photons and Electrons, Health Physics, Vol. 45, No. 3, Sept.1983.
aanmucasuu u muwm TABLE A (Sheet 1 of 2)
Maximum (*) Off-Site Doses and Dose Commitments to Members of the Public
- Dose (mremP)
Ist 2nd 3rd 4th Quaner Quarter Quarter Quaner Yea?
Liquid Efiluents:
Total Body Dose 5.93E-05 6.99E-05 1.14E-04 9.96E-05 3.43E-04 (1) (1) (1) (1)
Organ Dose 1.50E-04 2.21 E-04 2.85E-04 3.15E-04 9.71E-04 (2) (2) (3) (3) l Airbome Ellluents:
j Organ Dose from hxlines, 1.16E-04 8.73E-04 2.37E-03 1.76E-03 5.12E-03 i
- Trititun. and Particulates (4) (5) (6) (7)
Noble Gases Beta Air 8.64E-07 7.09E-07 9.llE-06 5.25E-04 5.36E-04 (mrad) (8) (9) (10) (11)
Gamma Air 3.99E-06 4.65E-06 3.24E-05 3.21E-04 3.62E-04 (mrad) (12) (13) (12) (11)
Doses (mrem) at Receptor Locations Inside Site Boundary *:
Science and Nature Center (SW,488m):
Beta Air Dose (mrad) ---
3.82E-09 ---
1.26E-06 1.26E-06 Gamma Air Dose (mrad) --
7.46E-09 --- 5.36E-07 5.43E-07 Organ Dose (mrem) 2.35E-09 4.24E-07 9.73E-07 8.30E-07 2.23E-06 (14) (15) (15) (15)
The " Rocks" (NE/ENE,244m):
Beta Air Dose (mrad) 1.76E-07 - - -
1.28E-06 7.36E-05 7.51E-05 Ganuna Air Dose (mrad) 2.07E-07 --- 8.74 E-07 1.76E-05 1.87E-05 d
Organ Dose (mrem) 1.llE-06 1.37E-05 3.87E-05 6.03E-05 1.14E-04
- (14) (15) (15) (15) 1 Direct Dose From Plant Operation
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TABLE A (Sheet 2 of 2)
< NOIES:
! (a) " Maximum means the largest fraction of coTesponding 10CFR50, Appendix 1, dose design objective.
i l (b) The numbered footnotes indicate the age group, organ, and location (compass sector and distance from i stack in meters) of the dose receptor, where appropriate.
i (1) Adult (2) GI-LLI of an Adult (3) Bone of a Child (4) GI-LLI of a child and teen, NNW 1100 (5) Liver, Kidney, Lung, GI-LLI, Thyroid and Whole Body of a Child, WSW-1032 (6) Liver, Kidney, Lung, GI-LLI, Thyroid, and Whole Body of a Child, W-1000 (7) Liver, Kidney, Lung, GI-LLI, Thyroid, and Whole Body of a Child, NNW-1100 (8) NE-2276 (9) SW-1022 (10) NW-914 (11) S-930 (12) N-914 (13) SSE-914 i
(14) Lung of a Teen (15) Liver, Kidney, Lung, GI-LL1, Thyroid, and Whole Body of a Teen (c) " 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 10CFR50.
(d) For each special receptor location, the whole body and organ doses calculated for the airborne effluent releases were adjusted by the occupancy factor provided in Seabrook's ODCM (i.e.,0.0014 for the Science and Nature Center and 0.0076 for the " Rocks").
(c) Only station r.ources are considered since there are no other facilities within five miles of Seabrook Station. 1996 data for the closest off-site emironmental TLD locations in each sector (as listed in Table B.4-1 of Seabrook's ODCM) were compared to preoperation data from 1986 1988 for the same locations. No statistical difference which could be attributed to station sources was identified.
rummucuwssucon no TABLE B Sources of the Values of Factors Used in Liauld Dose Eauations Factor Source U, Table B.7-1, Station ODCM M, Section B.7.1, Station ODCM (value=0.1 for aquatic foods and 0.025 for shoreline)
Bs Table A-1, Reg. Guide 1.109 l Da Tables E-11 through E-14 R.G.1.109 t,, Section B.7.1, Station ODCM .
1 Kc Reg. Guide 1.109 ts Reg. Guide 1.109 l
l W Table A-2, Resi, Guide 1.109 (value=0.5) cmvunueramtssacamtwra l
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I TABLE C i I
Sources of Values for the Factors Used in Dose Ecuations for Gaseous Releases I i
Factor Source t,, Reg. Guide 1.109 i li Kocher (Reference 3)
DFGs Table E-6, Reg. Guide 1.109
) [X/O]" Calculated by AEOLUS 2 (Mod 5) u j R, Table B.7-3 Station ODCM DFAa, Tables E-7 through E-10, R.G.I.109 l d, Reg. Guide 1.109
! P,t,,tuand Y, Table B.7-2, Station ODCM 3
r Table E-15 Reg. Guide 1.109 Bs. Table E-1, Reg. Guide 1.109 p Reg. Guide 1.109 H Table B.7-2, Station ODCM i i
Fm Tables E-1 and E-2, R.G.1.109 l
l Or Table E-3, Reu. Guide 1.109 I f tf Reg. Guide 1.109 f, Table B.7-2, Station ODCM l f, Table B.7-2, Station ODCM 5 Table E-1, Reg. Guide 1.109 Fr
- t, Table E-15. Reg. Guide 1.109
- DFla, Tables E-11 through E-14, R.G.I.109 1
U,", U m Table B.7-3, Station ODCM i
l I L Table B.7-3, Station ODCM U,F, g.
i f,.,f; Reg. Guide 1.109 o, Calculated by AEOLUS 2 (Mod 5)
I A Table E-15 Reg. Guide 1.109 Or Table E-3, Reg. Guide 1.109 .
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TABLE D i
Recentor Locations
- for Seabrook Station J
j Milk Animal Nearest Nearest within 5 Mi Resident Garden Radius Sector mile (km) mile (km) mile (km)
, N 0.6 (l .0) 2.6 (4.2) ---
. N VE 2.0 (3.2) 2.0 (3.2) ---
- 5. d 1.5 (2.4) 2.0 (3.2) ---
ENE 1.5 (2.4) --- ---
E 1.6 (2.6) --- ---
ESE 1.5 (2.4) --- ---
SE 1.5 (2.4) --- ---
SSE 0.6 (1.0) 0.6 (l.0) ---
S 0.6 (1.0) 0.7 (1.1) ---
SSW 0.5 (0.8) 0.5 (0.8) ---
SW 0.6 (l .0) ---
3.2 (5.Q_
WSW 0.6 (l .0) 0.6 (l .0) ---
W 0.6 (l.0) 1.0 (l .7) ---
WNW 0.6 (l .0) 0.8 (1.3) 3.8 (6.1) 4.8 (7.7) I NW 0.6 (l .0) 0.7 (1.1) 4.4 (7.1) i NNW 0.7 (1.1) 0.7 (1.1) 3.4 (5.5)
- Locations based on 1996 Land Use Census.
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