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Serge Gumenco

Ontario Power Generation/Emergency Response Maintainer

2025 Salary

$156,307

Total compensation $157,704, including $1,396 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

#6,040

Ontario Power Generation

Years on List

3

2023–2025

Peak Salary

$156,307

2025

Full 2025 roster at Ontario Power Generation →·See where $156,307 ranks →

Total Compensation History

Total compensation by yearLine chart of 3 yearly values of total compensation, from $119,902 in 2023 to $157,704 in 2025.$100K$120K$140K$160K202320242025
Total compensation, 2023–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2023–2025

$118,734 in 2023 is worth about $124,100 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Emergency Response MaintainerOntario Power Generation$156,307Benefits $1,396Total $157,704
2024Emergency Response MaintainerOntario Power Generation$127,550Benefits $1,314Total $128,865
2023Emergency Response MaintainerOntario Power Generation$118,734Benefits $1,168Total $119,902

Take-Home Pay
(After Tax) · 2025 estimate

Of the $156,307 Serge Gumenco earned in 2025, roughly $107,356 would remain after income tax, CPP and EI, an all-in deduction rate of about 31.3%. Within Ontario Power Generation, Serge Gumenco's total compensation of $157,704 was the #6,040 of 10,346, against a median salary of $161,066. That is about 23% more than the $127,550 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
~$107,356
Effective income-tax rate (excl. CPP/EI)
~27.8%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~31.3%
vs. 2025 Emergency Response Maintainer median
+14%

Where does $156,307 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.

Also at Ontario Power Generation
2025

View all 10,346 employees at Ontario Power Generation (2025) →