Mary Ann Best
Ontario Power Generation/Civil Maintainer First Line Manager Assistant
At a Glance
2025
Latest Salary
$143,7802025
Total Compensation
$147,615Incl. $3,834 benefits
Employer Rank
#7,174Ontario Power Generation
Years on List
62020–2025
Salary History
Full History
2020–2025
| Year | Employer | Position | Salary | Benefits | Total |
|---|---|---|---|---|---|
| 2025 | Ontario Power Generation | Civil Maintainer First Line Manager Assistant | $143,780 | $3,834 | $147,615 |
| 2024 | Ontario Power Generation | Civil Maintainer First Line Manager Assistant | $154,036 | $3,345 | $157,381 |
| 2023 | Ontario Power Generation | — | $152,780 | $3,274 | $156,053 |
| 2022 | Ontario Power Generation | Civil Maintainer First Line Manager Assistant | $119,756 | $4,625 | $124,381 |
| 2021 | Ontario Power Generation | Civil Maintainer | $111,129 | $2,733 | $113,862 |
| 2020 | Ontario Power Generation | Civil Maintainer | $108,561 | $2,518 | $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 effective rate of about 26.4%. 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
- 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.