ML20214S431
| ML20214S431 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 09/19/1986 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Wilgus W FLORIDA POWER CORP. |
| References | |
| IEIN-84-91, NUDOCS 8609290492 | |
| Download: ML20214S431 (3) | |
Text
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September 19, 1986 Docket No. 50-302 Mr. Walter S. Wilgus Vice President, Nuclear Operations Florida Power Corporation ATTN: Manager, Nuclear Licensing
& Fuel Management P. O. Box 14042; M.A.C. H-3 l
St. Petersburg, Florida 33733
Dear Mr. Wilgus:
SUBJECT:
SUEMITTAL OF METEOROLOGICAL DATA On December 10, 1984, IE Information Notice No, 84-91 (Enclosure 1) was sent to all the nuclear power facility licensees. This Notice outlined some of the problems that have been observed with the meteorological monitoring systems at a number of sites throughout the U.S.
As a follow-up to IE Notice No. 84-91, j
the NRC is conducting a review of the meteorological data from a sampling of i
facilities to determine if the problems identified in the Notice are widespread or isolated occurrences.
l The Crystal River plant is one of the facilities selected to be reviewed.
To facilitate this review, we request that you provide at least one year of
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hourly meteorological data recently collected from the onsite meteorological measurements system on magnetic tape using the NRC Standard Format for Meteorological Data (Enclosure 2). Meteorological data are summarized in the semi-annual effluent reports submitted in accordance with Section 6.9 of the plant technical specifications. However, as discussed in IE Notice No. 84-91, some data collection probleas are not always discernable through examination of gross data summaries.
The magnetic tape containing the data, plus supporting documentation describing tape characteristics (including a sample dunp from the tape),
should be sent within 30 days of receipt of this letter to:
Mr. Irwin Spickler Plant, Electrical, Instrumentation, and Control Systems Branch U.S. Nuclear Regulatory Commission Itail Stop P-700 Washington, DC 20555 The magnetic tape will be returned if so requested.
8609290492 860919 PDR ADOCK 05000302 G
D m e - o s c.
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W. S. Wilgus If you perceive any delays or difficulties in providing the requested infor-mation, or need any additional guidance, promptly notify Mr. Irwin Spickler at (301) 492-9515. Thank you for your cooperation in this matter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, b
John F. Stolz, Director v PWR Project Directorate #6 Division of PWR Licensing-B
Enclosures:
As Stated cc w/ enclosures:
See next page DISTRIBUTION ACRS-10 Go.ckeLFille?
BGrimes NRC PDR JPartlow L PDR HSilver PBD-6 Rdg RIngram FMiraglia Gray File OGC-MNBB 9604 NThompson Edordan BMozafari LSpickler DCollins, R:II Aa ta b
b BD-6 BD-6 PBD-6 PBDf6 PBD#6 (y
HSilver;cf BMozafari RWeller GEdison JStolz 9/()/86 9/Jg/86 9// 9/86 9/ /86 9/q/86 J
Mr. W. S. Wilgus Crystal River Unit No. 3 Nuclear Florida Power Corporation Generating Plant cc:
Mr. R. W. Neiser State Planning and Development Senior Vice President Clearinghouse and General Counsel Office of Planning and Budget Florida Power Corporation Executive Office of the Governnr P. O. Box 14042 The Capitol Building St. Petersburg, Florida 33733 Tallahassee, Florida 32301 Mr. P. McKee Mr. F. Alex Griffin, Chairman Nuclear Plant Manager Board of County Commissioners Florida Power Corporation Citrus County P. O. Box 219 110 North Apopka Avenue Crystal River, Florida 32629 Inverness, Florida 36250 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 220, 7910 Woodmont Avenue Bethesda, Maryland 20814 Resident Inspector U.S. Nuclear Regulatory Commission Route #3, Box 717 Crystal F.iver, Florida 32629 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Mr. Allan Schubert, Manager Public Health Physicist Department of Health and Rehabilitative Services 1323 Winewood Blvd.
Tallahassee, Florida 32301 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304
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SSINS: 6835 IN 84-91 l
' UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, DC 20555
, December 10, 1984 IE INFORMATION NOTICE NO. 84-91:
QUALITY CONTROL PROBLEMS OF METEOROLOGICAL MEASUREMENTS PROGRAMS
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Addressees:
All nuclear power reactor facilities holding an operating license (OL) or a construction permit (CP).
l Purpose and Summary:
This information notice 1s provided to inform licensees of ongoing problems with the collection of important meteorological data at nuclear power reactors.
l It was found that some meteorological measurements programs have not been properly operated and maintained to ensure the availability of high-quality meteorological data for use in emergency response and in assessments of the radiological impacts of routine and "off-normal" releases to the atmosphere.
It is expected that recipients will review the information for applicability to their facilities and consider actions, if appropriate, to preclude a similar problem occurring at their facilities.
However, suggestions contained in this information notice do not constitute N.RC requirements; therefore, no specific action or written response is required.
Description of Circumstances:
Poor quality meteorological measurements resulting from inadequately operated and maintained meteorological programs have been encountered and identified through emergency preparedness appraisals, Licensee Event Reports (LERs), and reviews of meteorological data summaries submitted in semiannual effluent reports.
There are two major concerns in this area.
One concern is the availability of sufficient meteorological data; the second is the availability nf valid meteorological data.
For example, one licensee claimed achievement of about 90% availability for meteorological data; however, only about 50% of those data were within accuracy specifications.
A number of licensees have experienced frequent and often pro-longed outages of the data collection systems, due to severe weather such as lightning, icing, and high winds, with loss of signif,icant amounts of data.
Other licensees have experienced gradual degradation and/or frequent ff$ ORORQA
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replacement of meteorological ifn' sors due to local environmental conditions such as salt, dust (including coal. dust), or the synergistic effects of pollutants such as sulfur oxides and nitrogen oxides with moisture. His-alignment of wind direction sensors and problems with measurement of vertical temperature difference (through failure of the aspirator or orientation of the shield) have also been reported by licensees.
Inadequate maintenance and control of ground cover and tree growth that may obstruct air movement'in the vicinity of the meteorological measurement ' system (resulting in erroneous wind speed, wind direction, and atmospheric stability determinations) have been observed during NRC inspections.
Discussion:
During emergency response situations, availability of erroneous met'eorological data could result in mis-characterization of important conditions such as wind speed (for determining plume arrival and transit times), wind direction (for
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determining plume position), and atmospheric stability (for determining the concentration of material within the plume and plume shape). The mis-charac-e terization of meteorological conditions could adversely affect:
recommendations for protective actions (e.g., evacuation vs. sheltering); designation of the area for which actions are warranted; assessments of plume arrival and transit times; and deployment of environmental sampling teams.
For assessments of "non-accident" releases, erroneous meteorological data may result in an impro-per calculation of dose, thereby making the demonstration of continuing com-pliance with the numerical dose guidelines of 10 CFR 50,, Appendix 1, suspect.
For example, mis-characterization of atmospheric stability by one class can result in a difference of a factor of 10 in estimates of short-term concentra-tions.
A number of data screening and checking programs are available for use with computerized data collection systems. Such programs used by the NRC staff are described in NUREG-0917, " Nuclear. Regulatory Commission Staff Computer Programs for Use with Meteorological Data," published in July 1982.
For non-computerized data collection systems, such as those recording directly on strip charts, data screening and checking requires special skills to identify subtle variations in data trends and ranges.
Data screening and checking programs and procedures can supplement regular operability, maintenance, and calibration checks.
i e
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IN 84-91 e'<..
December 10, 1984 Page 3 of 3 No specific action or written response is required by this information notice.
If you have any questions about this matter, please contact the Regional Admini-strator of the appropriate NRC Regional Office or this office.
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ward L. Jord
, Director b 26 Division of rgency Preparedness and Engineering Response Office of Inspection and Enforcement Technical Contacts: James E. Fairobent, NRR
.e (301-492-9427 William L. Fisher, IE (301-492-4671
Attachment:
List of Recently Issued IE Information Notices l
l o
9-
,maun=ai t IN 84-91 December 10, 1984
- a. <
LIST OF RECENTLY ISSUED IE INFORMATION NOTICES Information Date of Notice No.
Subject Issue Issted to 84-90 Main Steam Line Break 12/7/84 All boiling water Effect on Environmental reactnr facilities Qualification of Equipment holding an OL or CP j
84-89 Stress Corrosion Cracking 12/7/84 All boiling water J'
in Nonsensitized 316 reactor facilities Stainless Steel holding an OL or CP j
84-88 S*.andby Gas Treatment 12/3/84 All boiling water system Problems reactor facilities holding an OL or CP 84-87 Piping Thermal Deflection 12/3/84 All boiling water Induced by Stratified Flow reactor facilities holding an OL or CP 84-86 Isolation Between Signals 11/30/84 All boiling water of the Protection System reactor facilities and Non-Safety-Related holding an OL or CP Equipment 84-85 Molybdenum Breakthrough 11/30/84 All NRC licensed from Technetium-99m medical institutions Generators and radiopharmaceutical suppliers 84-84 Deficiencies In Ferro-11/27/84 All boiling water Resonant Transformers reactor facilities holding an OL or CP 84-83 Various Battery Problems 11/19/84 All boiling water reactor facilities holding an OL or CP 84-82 Guidance for Posting 11/19/84 All boiling water-Radiation Areas reactor facilities holding an OL or CP 84-48 Failures of Rockwell 11/16/84 All boiling water Supp. 1 International Globe Valves reactor facilities holding an OL or CP OL = Operating License CP = Construction Permit
APPENDIX A Standard Review Plan Section 2.3.3 RECOMMENDED FORMAT FOR HOURLY f1ETEOROLOGICAL DATA TO BE PLACED ON MAGNETIC TAPE
- USE:
9-track tape (7 will be acceptable [
Standard Label which would include:
Record Length = 160 Block Size (3200 - fixed block size)
Density (1600 BPI - 800 will be accepted)
Do Not Use:
Magnetic tapes with unformatted or s' panned records At the beginning of each tape, use the first five (5) records (which is the equivalent of ten cards) to give a tape description.
Include plant name;
. location (latitude, longitude); dates of data; information explainin'; data containing in the "other" fields if they are used; height of measurements; and any additional information pertinent to identification of the tape.
Make sure all five records are included, even if some are blank.
Format for the first five records will be 160A1. Meteorological data format is (16, 12, 13, 14, 25F5.1, F5.2, 3F5.1).
All data should be given to the tenth of a unit except solar radiation, which should be given to a hundredth of a unit.
This does not necessarily indicate the accuracy of the data (e.g., wind direction is usually given to the nearest
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degree).
All nines in any field indicate a lost record (99999).
All sevens in a wind direction field indicate calm (77777).
If there are only two levels of data, use the upper and lower levels.
If there is only one level of data, use the upper level.
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" Data on magnetic tape are acceptable in any reasonable format, if the format is completely described (see NUREG-0158, Part 1), and if a sample tape dump is provided.
2.3.3-8
'Rev. 2 - July 1981 A.
MAGNETIC TAPE METEOROLOGICAL DATA LOCATION:
DATE OF DATA RECORD:
16 Identifier (can be anything) 12 Year 13 Julian Day 14 Hour (on 24-hour clock)
ACCURACY F 5.1 Upper Measurements:
Level = ___ meters FS.1 Wind Direction (degrees)
F 5.1 Wind Speed (meter /sec)
F5.1 Sigma Theta (degrees)
FS.1 Ambient Temperature ( C)
F 5.1 Moisture:
F5.1 Other:
F5.1 Intermediate Measurements:
Level =
meters F5.1 Wind Direction (degrees)
F5.1 Wind Speed (meters /sec)
F5.1 Sigma Theta (degrees)
FS.1 Ambient Temperature ( C)
F5.1 Moisture:
FS.1 Other:
F5.1 Lower Measurements:
Level =
meters F5.1 Wind Direction (degrees)
F5.1 Wind Speed (meters /sec)
F5.1 Sigma Theta (degrees)
F 5. _1 Ambient Temperature (*C)
F5.1 Moisture:
FS.1 Other:
2.3.3-9 Rev. 2 - July 1981
MAGNETIC TAPE METEOROLOGICAL DATA (Continued)
FS.1 Temp. Diff. (Upper-Lower) ( C/100 meters)
F5.1 Temp. Diff. (Upper-Intermediate) ( C/100 meters)
F 5.1 Temp. Dift. (Intern.ediate-Loaer) ( C/100 meters)
F 5.1 Precipitation (mm) 2 Solar Radiation (cal /cm /rrin)
FS.1 F5.1 Visibility (km)
F5.1 Other:
F5.1 Other:
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2.3.3-10 Rev. 2 - July 1981
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