ENS Event | |
|---|---|
05:00 Sep 12, 2025 | |
| Title | Stuck Open Gauge Shutter |
| Event Description | The following information was provided by the Illinois Emergency Management Agency (the Agency) via phone and email:
The Agency was notified on September 12, 2025, by Equistar Chemicals LP of Morris, IL, regarding a stuck shutter. During the performance of the routine semi-annual inventory, the following nuclear gauge was found to have the shutter stuck in the open position. The gauge is in its normal operating shutter position (open) and no vessel entry or potential elevated exposures are likely. This matter is reportable within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> under 32 Illinois Administrative Code 340.1220(c)(2). Updates will be provided as they become available. Gauge: Vega model SH-F2 (serial number: 2767CO) Source: 300 mCi Cs-137 Illinois item number: IL250037 |
| Where | |
|---|---|
| Equistar Chemicals Lp Morris, Illinois (NRC Region 3) | |
| License number: | IL-01737-01 |
| Organization: | Illinois Emergency Mgmt. Agency |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+8.88 h0.37 days <br />0.0529 weeks <br />0.0122 months <br />) | |
| Opened: | Kim Stice 13:53 Sep 12, 2025 |
| NRC Officer: | Robert A. Thompson |
| Last Updated: | Sep 12, 2025 |
| 57924 - NRC Website | |
Equistar Chemicals Lp with Agreement State | |
WEEKMONTHYEARENS 579242025-09-12T05:00:00012 September 2025 05:00:00
[Table view]Agreement State Stuck Open Gauge Shutter ENS 575642025-02-20T06:00:00020 February 2025 06:00:00 Agreement State Agreement State - Stuck Open Shutter ENS 573172024-09-11T05:00:00011 September 2024 05:00:00 Agreement State Agreement State - Stuck Open Shutter ENS 493672013-09-18T05:00:00018 September 2013 05:00:00 Agreement State Agreement State Report - Stuck Shutter on Process Gauge ENS 476912012-02-22T06:00:00022 February 2012 06:00:00 Agreement State Agreement State Report - Stuck Gauge Shutter ENS 474112011-11-02T05:00:0002 November 2011 05:00:00 Agreement State Agreement State Report - Process Gauge Shutter Stuck Open ENS 454002009-09-30T05:00:00030 September 2009 05:00:00 Agreement State Agreement State Report - Shutter on Nuclear Gauge Failed to Close 2025-09-12T05:00:00 | |