Darren Mahlman
Ontario Clean Water Agency/Operations Supervisor, Water and Wastewater
2025 Salary
$257,934Total compensation $258,123, including $190 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
#3Ontario Clean Water Agency
Years on List
92016–2025
Peak Salary
$257,9342025
Full 2025 roster at Ontario Clean Water Agency →·See where $257,934 ranks →
Total Compensation History
Full History
2016–2025
$101,297 in 2016 is worth about $129,541 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Operations Supervisor, Water and WastewaterOntario Clean Water Agency | $257,934Benefits $190Total $258,123 |
| 2024 | Operations Supervisor, Water and WastewaterOntario Clean Water Agency | $247,069Benefits $181Total $247,249 |
| 2023 | Operations Supervisor, Water and Wastewater / Superviseur des opérations, eaux et eaux uséesOntario Clean Water Agency / Agence ontarienne des eaux | $166,144Benefits $164Total $166,307 |
| 2022 | Operations and Maintenance Team LeadOntario Clean Water Agency | $137,118Benefits $158Total $137,275 |
| 2021 | Operations and Maintenance Team LeadOntario Clean Water Agency | $131,212Benefits $156Total $131,367 |
| 2020 | Operations and Maintenance Team LeadOntario Clean Water Agency | $129,105Benefits $153Total $129,258 |
| 2019 | Operations and Maintenance Team LeadOntario Clean Water Agency | $119,910Benefits $154Total $120,064 |
| 2018 | Operations and Maintenance Team LeadOntario Clean Water Agency | $112,510Benefits $165Total $112,675 |
| 2016 | Operations and Maintenance Team Lead, opérations et entretienOntario Clean Water Agency | $101,297Benefits $149Total $101,447 |
Take-Home Pay
(After Tax) · 2025 estimate
In 2025, Darren Mahlman's $257,934 salary works out to roughly $159,819 after income tax, CPP and EI — an all-in deduction rate of about 38.0%. Compared with 2024, when the figure was $247,069, that is a rise of about 4%. Records under this name have appeared on the Sunshine List 9 years in all, first in 2016. Pension contributions — likely PSPP or OPTrust in the Crown Agencies sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$159,819
- Effective income-tax rate (excl. CPP/EI)
- ~35.9%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~38.0%
- vs. 2025 Operations Supervisor Water Wastewater median
- +130%
Where does $257,934 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.