| 2018 | 2019 | 2020 | Units | GRI |
Fatalities Employees | 0 | 0 | 0 | – | 403-9a |
Fatalities Contractors | 0 | 0 | 0 | – | 403-9b |
Fatality rate Employees | 0 | 0 | 0 | – | 403-9a |
Fatality rate Contractors | 0 | 0 | 0 | – | 403-9b |
| | | | | |
Serious Injuries Employees | 0 | 2 | 1 | – | 403-9a |
Serious Injuries Contractors | 2 | 4 | 2 | – | 403-9b |
| | | | | |
Lost Time Incidents Employees | 1 | 2 | 1 | – | 403-9a |
Lost Time Incidents Contractors | 3 | 8 | 3 | – | 403-9b |
Lost Time Incident rate Employees+Contractors | 0.5 | 0.8 | 0.5 | per mill exp. hours | 403-9 |
| | | | | |
Medical treatment incidents Employees | 5 | 3 | 0 | – | 403-9a |
Medical treatment incidents Contractors | 16 | 20 | 9 | – | 403-9b |
| | | | | |
Total exposure hours | 8.05 | 9.79 | 7.66 | million hrs worked | 403-9a |
Total recordable injuries frequency (TRIF) – Employees and contractors | 2.98 | 2.96 | 1.6 | per mill exp. hours | 403-9a |
Total recordable injuries frequency (TRIF) – Employees | – | – | 0.3 | per mill exp. hours | 403-9a |
Total recordable injuries frequency (TRIF) – Contractors | – | – | 2.5 | per mill exp. hours | 403-9b |
Serious incident frequency (SIF) | 0.62 | 0.6 | 0.5 | per mill exp. hours | 403-9a |
| | | | | |
Near misses with high potential | 3 | 7 | 3 | – | – |
| | | | | |
Asset Integrity and Process Safety | 2018 | 2019 | 2020 | Units | GRI |
Number of Tier 1 process safety events | 2 | 0 | 0 | – | – |
Number of Tier 2 process safety events | 1 | 0 | 0 | – | – |