Derek Haddleton
$151,137.30asCivil Maintainer First Line Manager Assistant-13.4%
Employed by Ontario Power Generation in 2025, according to Government of Ontario public salary records.
Salary Information
Historical salary and taxable benefits from 2009 to 2025.
In 2025, Derek Haddleton received a salary of $151,137.30 working as Civil Maintainer First Line Manager Assistant at Ontario Power Generation, as disclosed on the Ontario Sunshine List. This represents a 13.4% decrease from the previous year's reported salary. Derek Haddleton has appeared on the Ontario Sunshine List 17 times between 2009 and 2025, with reported earnings peaking at $176,690.48 in 2023. In addition to salary, $6,916.79 in taxable benefits was disclosed for 2025. Ontario Power Generation reports under the Ontario Power Generation sector of Ontario's public sector salary disclosure.
Top earning Civil Maintainer First Line Manager Assistants in Ontario Power Generation
| Name | Salary |
|---|---|
| Corinne Carruthers | $193,478.50 |
| Nathalie Reid | $191,402.41 |
| Angelika Ambra | $188,439.82 |
| Taryn Stewart | $185,318.69 |
| Ian Kahnert | $182,071.30 |
| Andrew Thompson | $182,015.33 |
| Mercy Samuel Apiafi | $179,026.19 |
| Gregory Leyden | $177,681.76 |
| Jason Adams | $175,321.28 |
| Barry Ramphal | $172,549.33 |
Other employees at Ontario Power Generation
| Name | Position | Salary |
|---|---|---|
| Robert Ethier Hydroelectric Operating Technician | Hydroelectric Operating Technician | $151,184.07 |
| Christian Ellsworth Mechanical Technician/Technologist | Mechanical Technician/Technologist | $151,148.72 |
| Natalia Slowikowski Senior Procurement Specialist | Senior Procurement Specialist | $151,141.72 |
| William Lau Nuclear Operator | Nuclear Operator | $151,141.49 |
| Jesse Mcdonald Nuclear Security Officer | Nuclear Security Officer | $151,141.33 |
| Mark Dejong Supervising Nuclear Operator First Line Manager Assistant | Supervising Nuclear Operator First Line Manager Assistant | $151,118.72 |
| Mohan Mathew Inspection and Maintenance Technician | Inspection and Maintenance Technician | $151,106.53 |
| Dinesh Kumar Mohan Project and Control Engineer/Officer | Project and Control Engineer/Officer | $151,100.10 |
| James Gardiner Mechanical Technician | Mechanical Technician | $151,086.10 |
| Mumtaz Ahmed Electrical and Control Technician | Electrical and Control Technician | $151,082.63 |