Rosemary Ash
Environment, Conservation and Parks/Supervisor, Great Lakes Monitoring Unit
2025 Salary
$156,057Total compensation $156,222, including $165 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
#220Environment, Conservation and Parks
Years on List
92016–2025
Peak Salary
$156,0572025
Full 2025 roster at Environment, Conservation and Parks →·See where $156,057 ranks →
Total Compensation History
Full History
2016–2025
$100,253 in 2016 is worth about $128,205 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervisor, Great Lakes Monitoring UnitEnvironment, Conservation and Parks | $156,057Benefits $165Total $156,222 |
| 2024 | Supervisor, Great Lakes Monitoring UnitEnvironment, Conservation and Parks | $122,595Benefits $157Total $122,751 |
| 2023 | Supervisor, Great Lakes Monitoring Unit / Superviseure, Unité de la surveillance pour les Grands LacsEnvironment, Conservation and Parks / Environnement, de la Protection de la nature et des Parcs | $118,759Benefits $152Total $118,911 |
| 2022 | Supervisor, Great Lakes Monitoring UnitEnvironment, Conservation and Parks | $115,344Benefits $150Total $115,495 |
| 2020 | Supervisor, Financial Assurance and Brownfields ServicesEnvironment, Conservation and Parks | $109,519Benefits $140Total $109,659 |
| 2019 | Supervisor, Financial Assurance and Brownfields ServicesEnvironment, Conservation and Parks | $105,532Benefits $141Total $105,673 |
| 2018 | Team Lead, Brownfields Filing and ReviewEnvironment and Climate Change | $103,489Benefits $156Total $103,645 |
| 2017 | Team Lead, Brownfields Filing and Review / Chef d'équipe, dépôt et examen des dossiers liés aux friches contaminéesEnvironment and Climate Change / Environnement et Action en matière de changement | $101,975Benefits $156Total $102,131 |
| 2016 | Team Lead, Brownfields Filing and Review / Chef d'équipe, dépôt et examen des dossiers liés aux friches contaminéesEnvironment and Climate Change | $100,253Benefits $163Total $100,416 |
Take-Home Pay
(After Tax) · 2025 estimate
Of the $156,057 Rosemary Ash earned in 2025, roughly $107,219 would remain after income tax, CPP and EI, an all-in deduction rate of about 31.3%. It is up about 27% on the $122,595 paid in 2024. At Environment, Conservation and Parks, 1,357 people made the 2025 list with a median salary of $120,454; Rosemary Ash's total compensation of $156,222 ranked #220. After pension contributions (probably PSPP or OPTrust in this sector), take-home is usually a further 7–10% lower.
- Estimated net pay
- ~$107,219
- Effective income-tax rate (excl. CPP/EI)
- ~27.8%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~31.3%
Where does $156,057 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.