Mark Alphonso
Ontario Power Generation/Supervising Nuclear Operator First Line Manager Assistant
2025 Salary
$161,642Total compensation $170,316, including $8,674 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
#4,588Ontario Power Generation
Years on List
162010–2025
Peak Salary
$161,6422025
Full 2025 roster at Ontario Power Generation →·See where $161,642 ranks →
Total Compensation History
Full History
2010–2025
$124,758 in 2010 is worth about $175,839 in 2025 dollars.
Take-Home Pay
(After Tax) · 2025 estimate
Of the $161,642 Mark Alphonso earned in 2025, roughly $110,292 would remain after income tax, CPP and EI, an all-in deduction rate of about 31.8%. At Ontario Power Generation, 10,346 people made the 2025 list with a median salary of $161,066; Mark Alphonso's total compensation of $170,316 ranked #4,588. That is about 4% more than the $155,394 paid in 2024. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.
- Estimated net pay
- ~$110,292
- Effective income-tax rate (excl. CPP/EI)
- ~28.4%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~31.8%
- vs. 2025 Supervising Nuclear Operator, FLM Assistant median
- −15%
Where does $161,642 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.