Event Notification Report for February 12, 2010
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/11/2010 - 02/12/2010
General Information or Other
Event Number: 45697
Rep Org: WESTINGHOUSE ELECTRIC COMPANY
Licensee: WESTINGHOUSE ELECTRIC COMPANY
Region: 1
City: PITTSBURGH State: PA
County: ALLEGHENY
License #:
Agreement: Y
Docket:
NRC Notified By: J.A. GRESHAM
HQ OPS Officer: PETE SNYDER
Licensee: WESTINGHOUSE ELECTRIC COMPANY
Region: 1
City: PITTSBURGH State: PA
County: ALLEGHENY
License #:
Agreement: Y
Docket:
NRC Notified By: J.A. GRESHAM
HQ OPS Officer: PETE SNYDER
Notification Date: 02/12/2010
Notification Time: 13:40 [ET]
Event Date: 02/12/2010
Event Time: 00:00 [EST]
Last Update Date: 02/16/2010
Notification Time: 13:40 [ET]
Event Date: 02/12/2010
Event Time: 00:00 [EST]
Last Update Date: 02/16/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
10 CFR Section:
21.21 - UNSPECIFIED PARAGRAPH
Person (Organization):
RAY POWELL (R1DO)
ALAN BLAMEY (R2DO)
HIRONORI PETERSON (R3DO)
WILLIAM JONES (R4DO)
PART 21 GROUP (EMAI)
RAY POWELL (R1DO)
ALAN BLAMEY (R2DO)
HIRONORI PETERSON (R3DO)
WILLIAM JONES (R4DO)
PART 21 GROUP (EMAI)
INTERIM REPORT CONCERNING AN ISSUE IN SUMP BLOCKAGE GENERIC TESTS
Westinghouse is evaluating an identified inconsistency between test assumptions and the test rig configurations used for Generic Safety Issue (GSI) 191, "Assessment of Debris Accumulation on PWR Sump Performance," testing. Specifically, this issue is related to jet impingement zone-of-influence (ZOI) tests and it applies to testing done for coatings and insulation.
Prior to discovery of the inconsistency, Westinghouse provided letters to the utilities to summarize the testing, analyze the test results, and propose acceptable ZOIs to support resolution of the ZOI aspect of GSI-191. The ZOI tests assumed the smallest diameter in the nozzle producing the jet to be at the nozzle. Westinghouse discovered however, that the inner diameter of an upstream component was smaller than the nozzle. This inconsistency may have resulted in undersized ZOIs being proposed in the letters.
Westinghouse has not yet concluded its determination as to whether there is a defect as defined by 10 CFR 21.
Westinghouse has been working with the Pressurized Water Reactors Owners Group and the NRC NRR Safety Issues Resolution Branch to resolve general test protocol issues and establish methods to evaluate the test results in terms of ZOIs.
* * * UPDATE ON 2/16/2010 * * *
Corrected the title of GSI-191 above and removed incorrect reference to NUREG/CR-6874 since it is not related to the Part 21.
Westinghouse is evaluating an identified inconsistency between test assumptions and the test rig configurations used for Generic Safety Issue (GSI) 191, "Assessment of Debris Accumulation on PWR Sump Performance," testing. Specifically, this issue is related to jet impingement zone-of-influence (ZOI) tests and it applies to testing done for coatings and insulation.
Prior to discovery of the inconsistency, Westinghouse provided letters to the utilities to summarize the testing, analyze the test results, and propose acceptable ZOIs to support resolution of the ZOI aspect of GSI-191. The ZOI tests assumed the smallest diameter in the nozzle producing the jet to be at the nozzle. Westinghouse discovered however, that the inner diameter of an upstream component was smaller than the nozzle. This inconsistency may have resulted in undersized ZOIs being proposed in the letters.
Westinghouse has not yet concluded its determination as to whether there is a defect as defined by 10 CFR 21.
Westinghouse has been working with the Pressurized Water Reactors Owners Group and the NRC NRR Safety Issues Resolution Branch to resolve general test protocol issues and establish methods to evaluate the test results in terms of ZOIs.
* * * UPDATE ON 2/16/2010 * * *
Corrected the title of GSI-191 above and removed incorrect reference to NUREG/CR-6874 since it is not related to the Part 21.
General Information or Other
Event Number: 45707
Rep Org: CALIFORNIA RADIATION CONTROL PRGM
Licensee: EARTH-STRATA, INC.
Region: 4
City: MURRIETA State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DONALD OESTERLE
HQ OPS Officer: DONALD NORWOOD
Licensee: EARTH-STRATA, INC.
Region: 4
City: MURRIETA State: CA
County:
License #:
Agreement: Y
Docket:
NRC Notified By: DONALD OESTERLE
HQ OPS Officer: DONALD NORWOOD
Notification Date: 02/17/2010
Notification Time: 18:52 [ET]
Event Date: 02/12/2010
Event Time: 00:00 [PST]
Last Update Date: 02/17/2010
Notification Time: 18:52 [ET]
Event Date: 02/12/2010
Event Time: 00:00 [PST]
Last Update Date: 02/17/2010
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
GEOFFREY MILLER (R4DO)
TERRENCE REIS (FSME)
MEXICO (via)
ILTAB VIA E-MAIL
GEOFFREY MILLER (R4DO)
TERRENCE REIS (FSME)
MEXICO (via)
ILTAB VIA E-MAIL
AGREEMENT STATE REPORT - STOLEN MOISTURE DENSITY GAUGE
The following information was received via e-mail:
"A CPN moisture density gauge (model MC3, serial # M330506989) was reported to have been stolen over the recent four day weekend from a construction site in Hesperia, between Main St. and Smoke Tree Lane. The gauge was reportedly taken with the transportation container, which was secured inside a locked construction trailer. The RSO believed that the authorized user had locked the transportation container [prior to] the period during which the gauge was stolen.
"The [theft of the] gauge was reported to the Hesperia Police in San Bernardino County. The RSO was informed by RHB [Radiologic Health Branch] that a reward should be offered for the return of the gauge. The RSO indicated he would discuss posting of a reward with the company insurance carrier."
The gauge contains a 10 mCi Cs-137 gamma source and a 50 mCi Am-241/Be neutron source.
California Incident No: 5010-021710
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf
The following information was received via e-mail:
"A CPN moisture density gauge (model MC3, serial # M330506989) was reported to have been stolen over the recent four day weekend from a construction site in Hesperia, between Main St. and Smoke Tree Lane. The gauge was reportedly taken with the transportation container, which was secured inside a locked construction trailer. The RSO believed that the authorized user had locked the transportation container [prior to] the period during which the gauge was stolen.
"The [theft of the] gauge was reported to the Hesperia Police in San Bernardino County. The RSO was informed by RHB [Radiologic Health Branch] that a reward should be offered for the return of the gauge. The RSO indicated he would discuss posting of a reward with the company insurance carrier."
The gauge contains a 10 mCi Cs-137 gamma source and a 50 mCi Am-241/Be neutron source.
California Incident No: 5010-021710
THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL
Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf