| | Site | License number | Start date | Title | Topic |
|---|
| ENS 57081 | University of Pennsylvania | PA-0131 | 17 April 2024 04:00:00 | Medical Underdose | Underdose |
| ENS 56972 | Hospital Of Fox Chase Cancer Center | PA-0293 | 1 February 2024 05:00:00 | Medical Misadministration | |
| ENS 56695 | Upmc Horizon, Greenville, Pa | PA-0057 | 23 August 2023 04:00:00 | Medical Event | |
| ENS 56689 | Allegheny Health Network, Pittsburgh, Pa | PA-1659 | 21 August 2023 04:00:00 | Medical Equipment Failed to Function as Designed | Brachytherapy
Overexposure |
| ENS 56536 | Earth Engineering, Inc. | PA-1040 | 23 May 2023 04:00:00 | Stolen Nuclear Density Gauge | Moisture Density Gauge
Stolen
Troxler Moisture Density Gauge |
| ENS 56488 | Mistras Group, Inc. | PA-1138 | 25 April 2023 04:00:00 | Damaged Radiography Camera | |
| ENS 56452 | Susquehanna | | 4 April 2023 23:15:00 | Offsite Notification | |
| ENS 56425 | Nextier Completion Solutions, Inc. | PA-1542 | 21 March 2023 04:00:00 | Broken Nucler Gauge Shutter | Overexposure |
| ENS 56370 | Veolia Es Alaron, Llc | PA-0678 | 16 February 2023 05:00:00 | Unplanned Contamination Event | Exclusive Use |
| ENS 57086 | University of Pennsylvania | PA-0131 | 31 January 2023 04:00:00 | Medical Event | |
| ENS 56319 | Geisinger Health System | PA-0006 | 11 January 2023 05:00:00 | Patient Underdose | TheraSphere
Underdose |
| ENS 57085 | University of Pennsylvania | PA-0131 | 29 December 2022 04:00:00 | Medical Event | |
| ENS 57084 | University of Pennsylvania | PA-0131 | 28 December 2022 04:00:00 | Medical Event | |
| ENS 55953 | Beaver Valley | | 21 June 2022 19:47:00 | Offsite Agency Notification Due to Chemical Leak | |
| ENS 55904 | University Of Penn. Philadelphia | PA-0131 | 18 May 2022 04:00:00 | Target Tissue Missed | |
| ENS 55889 | University of Pennsylvania | PA-0131 | 4 May 2022 04:00:00 | Underdose | Underdose |
| ENS 55737 | Veolia Es Alaron | PA-0678 | 10 February 2022 05:00:00 | Missing Source | Moisture Density Gauge |
| ENS 55520 | Cmt Laboratories, Inc. | PA-1224 | 13 October 2021 04:00:00 | Lost Nuclear Density Gauge | Moisture Density Gauge
Troxler Moisture Density Gauge |
| ENS 55511 | Diamond Technical Services | PA-1077 | 6 October 2021 04:00:00 | Unretractable Source | |
| ENS 55512 | Pennoni Associates, Inc. | PA-1064 | 21 September 2021 04:00:00 | Gauge Struck by Vehicle | |
| ENS 55376 | Geisinger Health System | PA-0006 | 22 July 2021 04:00:00 | Patient Under Dose | |
| ENS 55048 | Rls (Usa) Inc | PA-0515 | 23 December 2020 05:00:00 | Transportation Accident Damaging Licensed Material | |
| ENS 54608 | Pennsylvania Department of Environmental Protection | PA-1371A | 13 March 2020 04:00:00 | Agreement State Report - Lost Tritium Exit Signs | Tritium Exit Sign
Moisture Density Gauge |
| ENS 54385 | West Penn Allegheny Health System Inc | PA-0031 | 8 November 2019 05:00:00 | Agreement State Report - Dose Delivered Differs by More than 20 Percent | Eye plaque |
| ENS 53943 | John Blewett, Inc | | 5 March 2019 04:00:00 | Agreement State Report - Scrap Metal with Radium Discovered | |
| ENS 53877 | Albert Einstein Healthcare Network | PA-0135 | 13 February 2019 05:00:00 | Agreement State Report - Administered Dose to Unintended Organs Results or Will Result in Unintended Permanent Damage | |
| ENS 53868 | Eastern Regional Medical Center | PA-0980 | 8 February 2019 05:00:00 | Agreement State Report - Delivered Dose to Patient Less than Prescribed Dose | |
| ENS 53323 | Three Mile Island | | 11 April 2018 09:42:00 | Offsite Notification Due to Hydrazine Spill | |
| ENS 52927 | Three Mile Island | | 25 August 2017 15:15:00 | Offsite Notification Due to Exceeding Chlorine Effluent Limit | |
| ENS 52877 | Beaver Valley | | 28 July 2017 19:43:00 | Notification to Offsite Agency of Non-Routine Flow of Fire Protection Water to the Ohio River | |
| ENS 52871 | Limerick | | 25 July 2017 00:44:00 | Offsite Notification to the Pennsylvania Department of Environmental Protection | |
| ENS 52390 | Beaver Valley | | 22 November 2016 20:15:00 | Offsite Notification of a Minor Release of Non-Radiological Diluted Cleaning Solution to the Ohio River | |
| ENS 51847 | Limerick | | 4 April 2016 17:30:00 | Offsite Notification Due to Cooling Tower Water Released to a Non-Permitted Outfall | Ultimate heat sink |
| ENS 51591 | Us Steel | PA-G0309 | 4 December 2015 05:00:00 | Agreement State - Two Gauge Shutters Failed to Close | |
| ENS 51590 | Geisinger Health System | PA-0006 | 4 December 2015 05:00:00 | Agreement State Report - Delivered Dose of Yttrium-90 Less than Prescribed Dose | |
| ENS 51478 | Beaver Valley | | 16 October 2015 16:45:00 | Offsite Notification Made for Hazardous Chemical Spill | |
| ENS 51375 | Susquehanna | | 7 September 2015 13:25:00 | Offsite Notification | |
| ENS 51320 | Avid Radiopharmaceuticals Philadelphia Pa | PA-0023 | 13 August 2015 04:00:00 | Agreement State - External Radiation Levels on Shipping Package Above Limits | |
| ENS 50783 | Avid Radiopharmaceuticals, Philadelphia, Pa | PA-0988 | 30 January 2015 05:00:00 | Agreement State Report - Removable Contamination Found on Flourine-18 Package | |
| ENS 50690 | Susquehanna | | 17 December 2014 18:35:00 | Offsite Notification Due to Sewage Leak | |
| ENS 50275 | Beaver Valley | | 11 July 2014 19:00:00 | Offsite Notification Made for Hazardous Chemical Spill | |
| ENS 49000 | Valley Quarries, Inc. | PA-1222 | 3 May 2013 04:00:00 | Lost Troxler Moisture Density Gauge | Moisture Density Gauge
Troxler
Troxler Moisture Density Gauge |
| ENS 48671 | Thomas Jefferson University Hospitals, Inc. | PA-0130 | 11 January 2013 05:00:00 | Agreement State Report - Medical Event Involving Prostate Brachytherapy Implant | Brachytherapy |
| ENS 48658 | Beaver Valley | | 8 January 2013 19:32:00 | Offsite Notification of Oil Found in Soil on Property Adjacent to Beaver Valley | |
| ENS 48218 | York Hospital | PA-0010 | 21 August 2012 04:00:00 | Agreement State - Radiation Treatment Overdose Resulting from a Potential Generic Issue | Overdose |
| ENS 47771 | Thomas Jefferson University Hospital | PA-0130 | 22 March 2012 04:00:00 | Agreement State Report - Patient Received Less than Intended Dose | TheraSphere |
| ENS 47613 | Unknown | UNKNOWN | 19 January 2012 05:00:00 | Agreement State Report - Radium-226 Sources Discovered at Waste Transfer Station | Moisture Density Gauge |
| ENS 47093 | University Of Pennsylvania Hospital | PA-0131 | 21 July 2011 16:00:00 | Agreement State Report - Medical Event Involving Exposure Less than Prescribed | TheraSphere |
| ENS 46445 | Peach Bottom | | 1 December 2010 18:59:00 | Offsite Notification of Petroleum Spill Into the Susquehana River | |
| ENS 46164 | Susquehanna | | 10 August 2010 13:11:00 | Alert Declared Due to Freon-12 Leak in Reactor Building Chiller | |