Dorota Grzadkowska
Regional Municipality of Waterloo/Supervisor, Microbiology
2025 Salary
$116,693Total compensation $117,142, including $449 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
#446Regional Municipality of Waterloo
Years on List
92017–2025
Peak Salary
$116,6932025
Full 2025 roster at Regional Municipality of Waterloo →·See where $116,693 ranks →
Total Compensation History
Full History
2017–2025
$100,366 in 2017 is worth about $126,382 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervisor, MicrobiologyRegional Municipality Of Waterloo | $116,693Benefits $449Total $117,142 |
| 2024 | Senior MicrobiologistRegional Municipality Of Waterloo | $112,477Benefits $525Total $113,002 |
| 2023 | Senior MicrobiologistRegional Municipality Of Waterloo | $108,733Benefits $600Total $109,333 |
| 2022 | Senior MicrobiologistRegional Municipality Of Waterloo | $105,376Benefits $555Total $105,931 |
| 2021 | Senior MicrobiologistRegional Municipality Of Waterloo | $104,687Benefits $544Total $105,230 |
| 2020 | Senior MicrobiologistRegional Municipality Of Waterloo | $103,816Benefits $530Total $104,346 |
| 2019 | Senior MicrobiologistRegional Municipality Of Waterloo | $102,454Benefits $572Total $103,026 |
| 2018 | Senior MicrobiologistRegional Municipality of Waterloo | $100,829Benefits $472Total $101,300 |
| 2017 | Senior MicrobiologistRegional Municipality of Waterloo | $100,366Benefits $469Total $100,836 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $116,693 Dorota Grzadkowska earned in 2025, roughly $85,021 would remain after income tax, CPP and EI, an all-in deduction rate of about 27.1%. Within Regional Municipality of Waterloo, Dorota Grzadkowska's total compensation of $117,142 was the #446 of 952, against a median salary of $114,541. Dorota Grzadkowska has appeared on the list 9 times since 2017. After pension contributions (probably OMERS in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$85,021
- Effective income-tax rate (excl. CPP/EI)
- ~22.4%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~27.1%
Where does $116,693 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.