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Category:Annual Operating Report
MONTHYEARML24092A0422024-03-28028 March 2024 U.S. Geological Survey Triga Reactor Annual Report Submittal in Accordance with Technical Specification 6.7.1 Rev. 00 for 2023 ML23087A1012023-03-28028 March 2023 U.S. Geological Survey Triga Reactor, Annual Report Submittal in Accordance with Technical Specification 6.7.1 Rev. 00 ML21090A1912021-03-29029 March 2021 U.S. Geological Survey Triga Reactor, Annual Report Submittal in Accordance with Technical Specification 6.7.1 Rev. 00 ML20136A3362020-04-21021 April 2020 Us Dept. of Interior, Geological Survey (Usgs), Submittal of Corrected 2019 Annual Report ML20087H0192020-03-0202 March 2020 Us Dept of Interior, Geological Survey (USGS) - Submittal of 2019 Annual Report ML19044A3732019-01-31031 January 2019 Us Dept. of Interior, Geological Survey - Submittal of 2018 Annual Report ML18016A0512018-01-11011 January 2018 2017 Annual Report for the U.S. Geological Survey Triga Non-Power Reactor Facility ML17030A0362017-01-0909 January 2017 Us Dept. of the Interior, Geological Survey - Submittal of 2016 Annual Report ML16032A1662016-01-12012 January 2016 U.S. Geological Survey - Transmittal of 2015 Annual Report ML15043A0322015-02-0303 February 2015 Us Dept of Interior, Geological Survey - Submittal of 2014 Annual Report ML13037A1052013-01-24024 January 2013 U.S. Geological Survey Triga Non-Power Reactor Facility, 2012 Annual Report ML1104000232011-01-31031 January 2011 U. S. Geological Survey Triga Non-Power Reactor Annual Report - January 1, 2010 - December 31, 2010 ML1011701212010-04-19019 April 2010 Revision to the 2009 Annual Report ML1003303192010-01-25025 January 2010 U. S. Geological Survey Triga Non-Power Reactor Annual Report - January 1, 2009 - December 31, 2009 ML0902802312009-01-15015 January 2009 U.S. Geological Survey Triga Non-power Reactor Facility - 2008 Annual Report ML0802500232008-01-18018 January 2008 U.S. Geological Survey Trigra Reactor Annual Report for 2007 ML0510802622005-04-0808 April 2005 Letter Transmitting Replacement of the CY2003 Annual Report of the U.S. Geological Survey Triga non-power Reactor Facility ML0510504002005-04-0808 April 2005 U. S. Geological Survey Triga Reactor Annual Report January 1, 2003 - December 31, 2003 2024-03-28
[Table view] Category:Letter
MONTHYEARML24092A1542024-04-0404 April 2024 U.S. Geological Survey - Change of Facility Project Manager ML24092A0422024-03-28028 March 2024 U.S. Geological Survey Triga Reactor Annual Report Submittal in Accordance with Technical Specification 6.7.1 Rev. 00 for 2023 IR 05000274/20232022023-11-13013 November 2023 U.S. Geological - U.S. Nuclear Regulatory Commission Safety Inpsection Report No. 05000274/2023202 IR 05000274/20232032023-11-0909 November 2023 United States Geological Survey - U.S. Nuclear Regulatory Commission Security Inspection Report No. 05000274/2023203 (Public) IR 05000274/20232012023-02-27027 February 2023 United States Geological Survey - U.S. Nuclear Regulatory Commission Routine Inspection Report No. 05000274/2023201 ML22026A4852022-03-0707 March 2022 Examination Confirmation Letter No. 50-274/OL-22-01, United States Department of Interior Geological Survey ML22053A1872022-02-22022 February 2022 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, Reactor Administrator Succession IR 05000274/20212022021-10-0101 October 2021 U.S. Geological U.S. Nuclear Regulatory Commission Safety Inspection Report No. 05000274/2021202 IR 05000274/20212032021-09-30030 September 2021 United States Geological Survey - Nuclear Regulatory Commission Security Inspection Report No. 05000274/2021203 IR 05000274/20202012021-04-21021 April 2021 United States Geological Survey, U.S. Nuclear Regulatory Commission Routine Inspection Report05000274/2020201 - Cover Letter and Enclosure ML21090A1912021-03-29029 March 2021 U.S. Geological Survey Triga Reactor, Annual Report Submittal in Accordance with Technical Specification 6.7.1 Rev. 00 ML21082A2822021-03-23023 March 2021 Letter to R. Horton, USGS Denver Federal Center, from B. Smith, NRC, NRC Office of Investigations Report No. 4-2019-014 - Release of OI Synopsis IR 05000274/20212012021-03-12012 March 2021 U.S. Geological Survey NRC Non-Routine Inspection Report 05000274/2021201 ML20314A2922020-12-0303 December 2020 USGS Issuance of Amendment No. 14 to Renewed Facility Operating License No. R-113 for the USGS Triga Research Reactor Increasing the Special Nuclear Material Possession Limit ML20336A0202020-12-0101 December 2020 U.S. Geological Survey Triga Reactor - License Amendment Request LAR 14, Supplemental Information Letter 04 Provided in Response to Phone Call with NRC Project Manager at 0854 Mst on 2020-11-30 ML20295A4242020-11-16016 November 2020 Notification of Mailing Address Change Regarding Submittal of Fingerprint Cards ML20310A2962020-11-0505 November 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request LAR 14, Supplemental Information Letter 03 Provided in Resolution of Comments Presented by the State of Colorado During the Public M ML20310A3352020-11-0505 November 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, Updated Physical Security Plan, Rev. Xxi ML20318A0882020-10-22022 October 2020 U.S. Geological Survey Trig a Reactor, License Amendment Request LAR 14, Supplemental Information Letter 01 Provided in Response to Audit Visit on 2020-10-15 Purpose ML20296A4902020-10-22022 October 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request LAR 14, Supplemental Information Letter 02 Provided in Response to Audit Visit on 2020-10-15 ML20295A5102020-10-21021 October 2020 U.S. Geological Survey - Regulatory Audit Report Proposed License Amended No. 14 to Increase the Special Nuclear Material Possession Limit ML20233A9962020-10-0909 October 2020 Us Geological Survey - Issuance of Amendment No. 13 to Renewed Facility Operating License No. R-113 to Amend Technical Specifications 3.1.3 and 4.1 for the Us Geological Survey Triga Research Reactor ML20279A5912020-10-0606 October 2020 U.S. Geological Survey - Regulatory Audit Proposed License Amendment No. 14 Tt Increase the Special Nuclear Material Possession Limit ML20279A3052020-10-0505 October 2020 U.S. Geological Survey - Acceptance of the Application for Proposed License Amendment No. 14 Increase in the Special Nuclear Nuclear Material Possession Limit ML20275A2672020-10-0101 October 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request 2020-02, LAR 14, Rev. 00 ML20199M1672020-07-20020 July 2020 NRC Letter and SER Authorizing USGS to Use an Alternate A2 Value ML20183A1622020-07-0202 July 2020 U.S. Geological Survey - Acceptance of the Application for a License Amendment Exception to TS 3.1.3 and 4.1 to Allow Fewer than 110 Fuel Elements When Either Shutdown or Operating at a Power Level Not Greater than 5 Kilowatts ML20177A6102020-06-25025 June 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request 2020-01, Supplemental Information Provided in Response to ML20176A465 ML20161A1272020-06-0404 June 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request 2020-01, Revision 01 ML20134J1082020-05-13013 May 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, License Amendment Request 2020-01 ML20157A0752020-05-0707 May 2020 U.S. Geological Survey Triga Reactor, Docket Number 50-274, License Number R-113, Reactor Supervisor Appointment ML20136A3362020-04-21021 April 2020 Us Dept. of Interior, Geological Survey (Usgs), Submittal of Corrected 2019 Annual Report ML20134J1162020-04-10010 April 2020 7 of the Emergency Plan for the U.S. Geological Survey Triga Reactor (Gstr) Facility (License R-113, Docket 50-274) ML20087H0192020-03-0202 March 2020 Us Dept of Interior, Geological Survey (USGS) - Submittal of 2019 Annual Report ML19206A0622019-07-11011 July 2019 Us Dept of the Interior, Us Geological Survey Follow-Up on August 9, 2018 Letter Request for Approval for Use of Alternative A2 Value for Isotope Br-80m Under Appendix a to 10 CFR 71 ML19066A0542019-02-25025 February 2019 U.S. Dept of the Interior, Geological Survey, Reply to a Notice of Violation: EA-18-031 and EA-18-111 ML19044A3732019-01-31031 January 2019 Us Dept. of Interior, Geological Survey - Submittal of 2018 Annual Report ML18354B1702018-12-31031 December 2018 U.S Geological Survey-Notice of Violation and Proposed Imposition of Civil Penalty ML18324A5752018-11-16016 November 2018 United States Geological Survey (Usgs), Transfer of Reactor Supervisor Responsibilities. Position of Reactor Supervisor for Triga Facility Has Been Transferred from Mr. Brycen Roy to Mr. Christopher Farwell, Effective October 26, on Interim ML18324A5742018-11-16016 November 2018 United States Department of the Interior - Transfer of Reactor Administrative Responsibilities ML18325A1462018-11-0707 November 2018 U.S. Dept. of Interior, Geological Survey - Response to Apparent Violations Associated with NRC Investigation Reports 4-2017-027 and 4-2018-005; IA-18-038 IR 05000274/20182022018-08-15015 August 2018 United States Geological Survey - U.S. Nuclear Regulatory Commission Routine Inspection Report No. 50-274/2018-202 ML18236A5512018-08-0909 August 2018 Request for Approval for Use of Alternative A2 Value for Isotope Br-80m Under Appendix a to 10 CFR 71 IR 05000274/20182032018-07-17017 July 2018 United States Geological Survey - U.S. Nuclear Regulatory Commission Security Inspection Report 05000274/2018203 ML18016A0512018-01-11011 January 2018 2017 Annual Report for the U.S. Geological Survey Triga Non-Power Reactor Facility ML17355A1472017-12-18018 December 2017 Establishing a Quality Assurance Program at the U.S. Geological Survey Triga Reactor Facility (License R-113, Docket 50-274) IR 05000274/20172012017-05-17017 May 2017 United States Geological Survey NRC Routine Inspection Report No. 50-274/2017-201 ML17074A6472017-04-19019 April 2017 United States Geological Survey TRIGA Reactor Closure of Confirmatory Action Letter No. NRR-03-005 on Site-Specific Compensatory Measures Implementation Plan ML17067A3942017-03-22022 March 2017 U.S. Geological Survey - Non-Power Reactor Closeout of Generic Letter 2016-01, "Monitoring of Neutron Absorbing Materials in Spent Fuel Pools," for the U.S. Geological Survey Training Reactor And Isotopes Production, General Atomics Research Reactor ML17046A3632017-02-17017 February 2017 Examination Report No. 50-274/OL-17-01, United States Geological Survey 2024-04-04
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ZUSGS science for a changingworld Department of the Interior US Geological Survey Box 25046 MS-974 Denver CO, 80225 January 18, 2008 U.S. Nuclear Regulatory Commission Document Control Desk Washington DC 20555
Dear NRC staff:
The attached annual report of the U.S. Geological Survey TRIGA non-power reactor facility is submitted in accordance with license conditions.
The facility docket number is 50-274.
Sincerely, Reactor Supervisor Enclosure Copy to:
Al Adams, MS 12 G-13
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U.S. GEOLOGICAL SURVEY TRIGA REACTOR ANNUAL REPORT JANUARY 1, 2007 - DECEMBER 31, 2007 NRC LICENSE NO. R-1 13 - DOCKET NO. 50-274 I. Personnel Changes:
Paul Lietz resigned from his position at the facility, effective June 7, 2007.
Paul Lietz's operator license was terminated as a result of his resignation.
Alex Buehrle was hired as a student employee and began working on June 11, 2007.
Brycen Roy was hired as a student employee and began working on July 23, 2007.
II. Operating Experience The Geological Survey TRIGA Reactor (GSTR) was in normal operation for the year 2007. No major facility changes were made during the year. A nuclear engineering laboratory course was held at the facility as part of the curriculum of the Colorado School of Mines. This course is expected to be provided on an annual basis.
A synopsis of irradiations performed during the year is given below, listed by the organization submitting the samples to the reactor staff:
Organization Number of Samples Geologic Discipline - INAA 1044 Geologic Discipline - Geochronology 1158 Non-USGS 1452 Total 3654 A. Thermal power calibrations were performed in January and July, with no adjustments made to the instrumentation.
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B. During the report period, 182 daily checklists and 12 monthly checklists were completed in compliance with technical specifications requirements for surveillance of the reactor facility.
C. Tours were provided to individuals and groups during the year for a total visitor count of approximately 350.
III. Tabulation of Enerav Generated MWH operated Critical hours Pulses Jan 63.705 80h 20m 0 Feb 58.217 59h 45m 0 Mar 50.394 54h 24m 0 Apr 61.249 61h 19m 0 May 67.983 69h 51m 0 June 24.793 29h Olm 0 July 43.413 55h 58m 5 Aug 81.475 85h Olm 0 Sept 70.600 72h 15m 0 Oct 77.341 80h 16m 0 Nov 35.900 37h 47m 0 Dec 10.212 11h 41m 0 Totals 645.282 697h 38m 5 IV. Unscheduled Shutdowns Number Date Cause 1022 03115/07 DAC DIS064 timeout 1023 03/23/07 DAC DIS064 timeout 1024 06/26/07 DAC DIS064 timeout 1025 07/20/07 DAC DIS064 timeout 1026 08/27/07 NPI 000 hi power while going to full power 1027 09/04/07 NP1000 hi power due to noise spike 1028 09/04/07 NP1000 hi power; bad HV connector 1029 12/07/07 DAC DIS064 timeout V. Significant Maintenance Operations
- 1. The ion exchange resin and filters were replaced in January.
- 2. The lithium battery in the NM1000 microprocessor was replaced in January.
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- 3. Fittings at the conductivity meter probes were leaking; replaced in January.
- 4. The Tektronix hi-resolution console monitor was replaced in April.
- 5. The ion exchange resin and filters were replaced in May.
- 6. Lead shielding was added around the demineralizer tank in June.
- 7. A 10 kQ resistor in the NP1000 was replaced in July.
- 8. The primary pump motor/pump shaft was aligned in August.
- 9. The signal lead on the NP1000 was rebuilt in August.
- 10. A dry tube in a reflector-mounted position had a water leak. The tube was drained, inverted and reinstalled in October.
- 11. The console ACKNOWLEDGE switch was replaced in December.
- 12. During routine rod inspection testing of SHIM1 drive in December, it was discovered that the dashpot piston assembly had become disconnected.
Holes were re-tapped, new screws were installed and the drive was returned to service.
Vl. Summary of 10 CFR 50.59 changes No 50.59 changes were made during this year.
VII. Radioactivity Releases A. Listed below are the total amounts of radioactive gaseous effluent released to the environment beyond the effective control of the reactor facility.
Table 1. Gaseous Effluents Released to the Environment Month Argon-41 License Tritium (HTO) IOCFR20 Allowable Allowable (curies) (Ci) (R-113) (mCi) , (mCi)
January 0.338 5.833 0.044 124 February 0.459 5.833 0.080 124 March 0.174 5.833 0.0 124 April 0.635 5.833 0.0105 124 May 0.463 5.833 0.058 124 June 0.399 5.833 0.047 124 July 0.255 5.833 0.0 124 August 0.655 5.833 0.071 124 September 0.244 5.833 0.0 124 October 0.637 5.833 0.077 124 November 0.320 5.833 0.0 124 December 0.088 5.833 0.088 124 Total 4.67 70.00 0.570 1488
% of Allowable 6.67% ------------- 0.04% ------
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- Note: The tritium concentrations are estimates based on the amount of water lost by evaporation from the reactor multiplied by the concentration of tritium as HTO. Tritium sample analyses were performed by Severn Trent Laboratories.
B. One solid, low-level waste shipment of 7.5 cu. ft. was made this calendar year.
VIII. Radiation Monitoring Our program to monitor and control radiation exposures included the four major elements below during the operating year.
- 1. Fifteen gamma-sensitive area monitors are located throughout the Nuclear Science Building. A remote readout panel is located in the reactor health physics office. High alarm set points range from 2 mR/hr to 50 mR/hr. High level alarms are very infrequent and due to sample movements.
- 2. One Continuous Air Monitor (CAM) provides sampling of the air in the reactor bay. An equilibrium concentration of about 1 x 10`8 gCi/ml present for two minutes will result in an increase of 400 cpm above background. There are two alarm setpoints. A low-level alarm is set at 3000 cpm and the high level alarm is set at 10000 cpm. Reactor bay air is sampled during all reactor operations. The fixed particulate air filter is changed each week and counted on a HPGE gamma spectrometer counting system. The charcoal filter, fitted behind the air filter, is also changed and counted weekly. In all instances, sample data were less than airborne concentration values in 10 CFR Part 20, Appendix B, Table 2 for all particulate radioisotopes produced by the reactor.
- 3. Contamination wipe surveys and radiation surveys with portable survey instruments are performed at least once a month. All portable instruments are calibrated with a 3-Curie (initial activity) Cs-1 37 source traceable to NBS, and wipes are counted on a Gamma Products G5000 low level counting system. All areas were less than 30 pCi/1 00 cm 2 beta and 15 pCi/1 00 cr2 alpha contamination.
The roof area over the reactor tank is roped off and posted as a radiation area (averaging 2.5 mR/hr) during 1 MW operations.
- 4. LiF TLD dosimeters were used at four outdoor environmental stations. Reactor facility visitors are issued self-reading dosimeters. Reactor staff personnel are issued beta, gamma, albedo neutron badges.
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Table 2. Personnel Monitoring Results (111107 - 12/31/07)
Deep Dose Shallow Dose Equivalent Equivalent Name Whole Body (Rem) Whole Body (Rem) Extremity (Rem)
Buehrle, A 0.021 0.049 0.102 DeBey, T 0.121 0.220 0.236 Lightner, G 0.260 0.362 1.270 Liles, D 0.212 0.220 0.556 Roy, B 0.000 0.000 0.046 Reactor visitors and occasional experimenters wore pocket dosimeters that resulted in no individual reading that was greater than one (1) mrem.
Table 3. Environmental Dose Results Location Dose Dose Dose Dose Total Jan-Mar Apr-June July-Sept Oct- Dec (RAD) (RAD) (RAD) (RAD) (RAD)
Exhaust 0.044 0.033 0.037 0.033 0.147 Stack Cooling 0.007 0.004 0.000 0.008 0.019 Tower Fence West Vehicle 0.017 0.012 0.019 0.020 0.068 Gate West Room 0.067 0.046 0.022 0.023 0.158 151 Gate Southwest 0.008 0.001 0.008 0.010 0.027 Light Pole Control 0.036 0.032 0.038 0.041 0.147 (background) I I Southeast 0.001 0.002 0.000 0.001 0.004 Light Pole I I_ I Note: Above totals have the background subtracted (see control). Environmental TLDs were supplied and analyzed by Global Dosimetry Solutions.
X. Environmental Monitoring There have been no uncontrolled radioactivity releases from the reactor to the present date. Thus, the data on file from past years to the present are considered to be background information.
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