Public Salaries
Ontario public pay

Kiyoshi Oka

Director Water and Wastewater System Services at Regional Municipality Of Halton. On Ontario’s disclosure list 19 years between 2007 and 2025.

Salary disclosure2025
Kiyoshi Oka
Director Water and Wastewater System Services
Regional Municipality Of Halton
Salary paid
$219,074.63
Taxable benefits
$1,018.12
Total disclosed
$220,092.75
Source: Government of Ontario, Public Sector Salary Disclosure Act, 1996. © King’s Printer for Ontario.
Change from 2024: +$14,232 (+6.9%)
19years on
the list

Among 2,135 people at Regional Municipality Of Halton in 2025

51st highest paid. Their median: $128,827.

Paid more than 96% of everyone on the 2025 disclosure list, which only lists people paid $100,000 or more.

middle 80%middle halfmedianthis personspacing grows with pay (log scale)

Salary by year

Show as a table
YearSalaryMedian for the job
2007$113,488$113,237
2008$126,389$116,032
2009$132,756
2010$148,468
2011$154,865
2012$162,005
2013$169,217
2014$183,469
2015$182,693
2016$183,215
2017$187,502
2018$191,093
2019$194,591
2020$216,050
2021$202,427
2022$199,970
2023$199,847
2024$204,843
2025$219,075

History

YearEmployer and jobSalaryBenefitsChange
2025Regional Municipality Of HaltonDirector Water and Wastewater System Services$219,075$1,018+$14,232 (+6.9%)
2024Regional Municipality Of HaltonDirector Water and Wastewater System Services$204,843$962+$4,996 (+2.5%)
2023Regional Municipality Of HaltonDirector, Water and Wastewater System Services$199,847$934−$123 (−0.1%)
2022Regional Municipality Of HaltonDirector, Water and Wastewater System Services$199,970$920−$2,457 (−1.2%)
2021Regional Municipality Of HaltonDirector Water and Wastewater System Services$202,427$917−$13,623 (−6.3%)
2020Regional Municipality Of HaltonDirector Water and Wastewater System Services$216,050$940+$21,459 (+11.0%)
2019Regional Municipality Of HaltonDirector Water and Wastewater System Services$194,591$909+$3,497 (+1.8%)
2018Regional Municipality Of HaltonDirector Water and Wastewater System Services$191,093$891+$3,591 (+1.9%)
2017Regional Municipality Of HaltonDirector Water and Wastewater System Services$187,502$875+$4,287 (+2.3%)
2016Regional Municipality Of HaltonDirector Water and Wastewater System Services$183,215$859+$523 (+0.3%)
2015Regional Municipality Of HaltonDirector Water & Wastewater System Services$182,693$1,046−$776 (−0.4%)
2014Regional Municipality Of HaltonDirector Water Services$183,469$984+$14,252 (+8.4%)
2013Regional Municipality Of HaltonDirector Water Services$169,217$1,059+$7,212 (+4.5%)
2012Regional Municipality Of HaltonDirector Water Services$162,005$851+$7,140 (+4.6%)
2011Regional Municipality Of HaltonDirector Water Services$154,865$806+$6,397 (+4.3%)
2010Regional Municipality Of HaltonDirector Water Services · moved here$148,468$838+$15,712 (+11.8%)
2009Halton RegionDirector Water Services$132,756$552+$6,367 (+5.0%)
2008Halton RegionDirector, Environmental Services$126,389$757+$12,901 (+11.4%)
2007Halton RegionDirector, Environmental Services$113,488$820

Compare

Questions and answers

Why is Kiyoshi Oka on the disclosure list?

Regional Municipality Of Halton paid Kiyoshi Oka $219,075 in 2025. Ontario’s public employers must disclose everyone they paid $100,000 or more in a calendar year, under the Public Sector Salary Disclosure Act, 1996.

What does “salary paid” include?

What the employer paid in the calendar year, so it can include overtime, retroactive pay, vacation payouts, severance or a partial year. Taxable benefits are listed separately. How the lists work

What do the comparisons mean?

Ranks and shares are among people on the same year’s list only: those with the same title, those at the same employer, or everyone listed. People paid under $100,000 are not on the list, so they are not counted.

How do I report a mistake or ask for a record to be removed?

Privacy and corrections explains both. Figures are shown exactly as Ontario published them; we fix matching mistakes and handle removal requests there.

Years at different employers were matched because the name appears once on each year’s list with the same job or sector. Salary paid can include overtime, retroactive pay and one-time payments. Figures are exactly as Ontario published them. How we match years · Report a mistake or ask for removal