Kiyoshi Oka
Regional Municipality of Halton/Director Water and Wastewater System Services
2025 Salary
$219,075Total compensation $220,093, including $1,018 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
#53Regional Municipality of Halton
Years on List
192007–2025
Peak Salary
$219,0752025
Full 2025 roster at Regional Municipality of Halton →·See where $219,075 ranks →
Total Compensation History
Full History
2007–2025
$113,488 in 2007 is worth about $167,127 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Director Water and Wastewater System ServicesRegional Municipality Of Halton | $219,075Benefits $1,018Total $220,093 |
| 2024 | Director Water and Wastewater System ServicesRegional Municipality Of Halton | $204,843Benefits $962Total $205,805 |
| 2023 | Director, Water and Wastewater System ServicesRegional Municipality Of Halton | $199,847Benefits $934Total $200,780 |
| 2022 | Director, Water and Wastewater System ServicesRegional Municipality Of Halton | $199,970Benefits $920Total $200,890 |
| 2021 | Director Water and Wastewater System ServicesRegional Municipality Of Halton | $202,427Benefits $917Total $203,345 |
| 2020 | Director Water and Wastewater System ServicesRegional Municipality Of Halton | $216,050Benefits $940Total $216,990 |
| 2019 | Director Water and Wastewater System ServicesRegional Municipality Of Halton | $194,591Benefits $909Total $195,500 |
| 2018 | Director Water and Wastewater System ServicesRegional Municipality of Halton | $191,093Benefits $891Total $191,985 |
| 2017 | Director Water and Wastewater System ServicesRegional Municipality of Halton | $187,502Benefits $875Total $188,377 |
| 2016 | Director Water and Wastewater System ServicesRegional Municipality of Halton | $183,215Benefits $859Total $184,074 |
| 2015 | Director Water & Wastewater System ServicesRegional Municipality of Halton | $182,693Benefits $1,046Total $183,738 |
| 2014 | Director Water ServicesRegional Municipality of Halton | $183,469Benefits $984Total $184,453 |
| 2013 | Director Water ServicesRegional Municipality of Halton | $169,217Benefits $1,059Total $170,276 |
| 2012 | Director Water ServicesRegional Municipality of Halton | $162,005Benefits $851Total $162,856 |
| 2011 | Director Water ServicesRegional Municipality of Halton | $154,865Benefits $806Total $155,672 |
| 2010 | Director Water ServicesRegional Municipality of Halton | $148,468Benefits $838Total $149,306 |
| 2009 | Director Water ServicesHalton Region | $132,756Benefits $552Total $133,307 |
| 2008 | Director, Environmental ServicesHalton Region | $126,389Benefits $757Total $127,146 |
| 2007 | Director, Environmental ServicesHalton Region | $113,488Benefits $820Total $114,308 |
Take-Home Pay
(After Tax) · 2025 estimate
Kiyoshi Oka was paid $219,075 in 2025; after income tax, CPP and EI that is roughly $140,421, an effective income-tax rate of about 33.4%. At Regional Municipality of Halton, 2,135 people made the 2025 list with a median salary of $128,827; Kiyoshi Oka's total compensation of $220,093 ranked #53. That is about 7% more than the $204,843 paid in 2024. Most Municipalities & Services employees belong to OMERS, so actual take-home is likely another 7–10% lower after pension contributions.
- Estimated net pay
- ~$140,421
- Effective income-tax rate (excl. CPP/EI)
- ~33.4%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~35.9%
Where does $219,075 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.