Mark Johnston
City of Ottawa/Supervisor, Water Services Maintenance
2025 Salary
$117,556Total compensation $117,901, including $345 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
#2,635City of Ottawa
Years on List
82018–2025
Peak Salary
$135,9512023
Full 2025 roster at City of Ottawa →·See where $117,556 ranks →
Total Compensation History
Full History
2018–2025
$105,287 in 2018 is worth about $129,597 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Supervisor, Water Services MaintenanceCity Of Ottawa | $117,556Benefits $345Total $117,901 |
| 2024 | Supervisor, Water Services MaintenanceCity Of Ottawa | $127,545Benefits $345Total $127,891 |
| 2023 | Supervisor, Water Services MaintenanceCity Of Ottawa | $135,951Benefits $350Total $136,301 |
| 2022 | Supervisor, Water Services MaintenanceCity Of Ottawa | $121,432Benefits $357Total $121,790 |
| 2021 | Supervisor, Water Services MaintenanceCity Of Ottawa | $127,415Benefits $327Total $127,742 |
| 2020 | Supervisor, Water Services MaintenanceCity Of Ottawa | $126,036Benefits $379Total $126,415 |
| 2019 | Supervisor, Water Services MaintenanceCity Of Ottawa | $113,605Benefits $373Total $113,978 |
| 2018 | Supervisor, Wastewater Maintenance and ProcessCity of Ottawa | $105,287Benefits $316Total $105,603 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Mark Johnston's 2025 salary of $117,556 comes to roughly $85,508 once federal and Ontario income tax (about 22.6% effective) is deducted. At City of Ottawa, 5,181 people made the 2025 list with a median salary of $117,638; Mark Johnston's total compensation of $117,901 ranked #2,635. It is down about 8% from the $127,545 paid in 2024. Pension contributions — likely OMERS in the Municipalities & Services sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$85,508
- Effective income-tax rate (excl. CPP/EI)
- ~22.6%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~27.3%
Where does $117,556 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.