Mary Ann Best
Ontario Power Generation/Civil Maintainer First Line Manager Assistant
2025 Salary
$143,780Total compensation $147,615, including $3,834 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#7,174Ontario Power Generation
Years on List
62020–2025
Peak Salary
$154,0362024
Full 2025 roster at Ontario Power Generation →·See where $143,780 ranks →
Total Compensation History
Full History
2020–2025
$108,561 in 2020 is worth about $130,114 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Civil Maintainer First Line Manager AssistantOntario Power Generation | $143,780Benefits $3,834Total $147,615 |
| 2024 | Civil Maintainer First Line Manager AssistantOntario Power Generation | $154,036Benefits $3,345Total $157,381 |
| 2023 | Civil Maintainer First Line Manager AssistantOntario Power Generation | $152,780Benefits $3,274Total $156,053 |
| 2022 | Civil Maintainer First Line Manager AssistantOntario Power Generation | $119,756Benefits $4,625Total $124,381 |
| 2021 | Civil MaintainerOntario Power Generation | $111,129Benefits $2,733Total $113,862 |
| 2020 | Civil MaintainerOntario Power Generation | $108,561Benefits $2,518Total $111,079 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $143,780 Mary Ann Best earned in 2025, roughly $100,349 would remain after income tax, CPP and EI, an all-in deduction rate of about 30.2%. For comparison, the median Civil Maintainer First Line Manager Assistant on the 2025 list was paid $150,723; this salary is about 5% less. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.
- Estimated net pay
- ~$100,349
- Effective income-tax rate (excl. CPP/EI)
- ~26.4%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~30.2%
- vs. 2025 Civil Maintainer First Line Manager Assistant median
- −5%
Where does $143,780 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.