Mark Zolkowski
City of St. Thomas/Wastewater Treatment Operator
2025 Salary
$114,548Total compensation $115,160, including $612 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
#163City of St. Thomas
Years on List
12025–2025
Peak Salary
$114,5482025
Full 2025 roster at City of St. Thomas →·See where $114,548 ranks →
Full History
2025–2025
| Year | Position | Salary |
|---|---|---|
| 2025 | Wastewater Treatment OperatorCity Of St. Thomas | $114,548Benefits $612Total $115,160 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Mark Zolkowski's 2025 salary of $114,548 comes to roughly $83,736 once federal and Ontario income tax (about 22.1% effective) is deducted. On total compensation of $115,160, Mark Zolkowski ranked #163 of 221 disclosed at City of St. Thomas that year, where the median salary was $132,438. This is Mark Zolkowski's first appearance on the Sunshine List. Most Municipalities & Services employees belong to OMERS, so actual take-home is likely another 7–10% lower after pension contributions.
- Estimated net pay
- ~$83,736
- Effective income-tax rate (excl. CPP/EI)
- ~22.1%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~26.9%
- vs. 2025 Wastewater Treatment Operator median
- +4%
Where does $114,548 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.