The Ontario Sunshine List - Public Sector Salary Disclosure

The names, positions, salaries and total taxable benefits of public sector employees paid $100,000 or more in a calendar year.

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Supervisor, Water And Wastewater

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In Ontario's 2025 Sunshine List, there were 135 employees with similar job titles who received an average salary of $123,304.21

$123,304.21

Average Salary in 2025

$121,224.02

Median Salary in 2025

Male
91.07% 
Male
Female
8.93%
Female
135 employees (Supervisor, Water And Wastewater)
1 135
Low: $101K Median: $121K High: $258K

Below is the quartile breakdown of the salary range.

120 employees received a salary between $101,006 - $140,285
14 employees received a salary between $140,285 - $179,565
0 employees received a salary between $179,565 - $218,844
1 employees received a salary between $218,844 - $258,123

Majority of the employees were paid within the salary range encompassing the first quartile breakdown.

What were the average and median salaries for a Supervisor, Water And Wastewater listed in the 2025 Ontario Government Sunshine List?

The 2025 Ontario Sunshine List shows that the average and median salaries for a Supervisor, Water And Wastewater are $123,304.21 and $121,224.02, respectively.

What is the highest salary for a Supervisor, Water And Wastewater in a public organization in Ontario?

In 2025, Darren Mahlman, holding the position of Operations Supervisor, Water And Wastewater at the Ontario Clean Water Agency received the highest salary of $258,123.44 among similar positions in Ontario public organizations. Patrick Bisson, serving as the Supervisor, Water And Wastewater at City of Welland , earned the highest salary of $131,850.11 among individuals in the same position across public organizations in Ontario during that year.

What are the top 5 public organizations in Ontario that offer the highest salaries for Supervisor, Water And Wastewater?

In the year 2025, the highest-paying organizations for Supervisor, Water And Wastewater and similar positions in the Ontario were as follows: Town of Wasaga Beach with an average pay of $163,181.90; City of Richmond Hill with an average pay of $160,674.19; Town of Orangeville with an average pay of $142,194.67; Town of Tillsonburg with an average pay of $142,019.00; and Town of Penetanguishene with an average pay of $141,696.12.

A total of 48 organizations had employees who held comparable positions as mentioned in the Ontario Sunshine list.

What are the top 3 public sectors in Ontario that offer the highest salaries for Supervisor, Water And Wastewater?

In the year 2025, the highest-paying sector or industries for Supervisor, Water And Wastewater and similar positions in the Ontario were as follows: Municipalities and Services with an average pay of $125,112.35; and Crown Agencies with an average pay of $119,918.78.

There were 2 sectors where employees held similar positions, as indicated in the Ontario Sunshine list.

What is the representation of gender diversity for Supervisor, Water And Wastewater in Ontario?

The 2025 Ontario Sunshine List indicates that the representation of gender diversity in Supervisor, Water And Wastewater is 91.07% male and 8.93% female, respectively.

The 2025 Sunshine List has 135 employees who held comparable positions in Ontario.

10 out of 135 employees

Full Name Job Title Employer Total Paid
Darren Mahlman Operations Supervisor, Water And Wastewater Ontario Clean Water Agency $258,123
Mohamed Karim Supervisor Water And Wastewater City of Richmond Hill $171,398
Colin Duke Supervisor Collection Wastewater Regional Municipality of Peel $168,575
David Thiffault Supervisor Collection Wastewater Regional Municipality of Peel $163,826
David Guarasci Water / Wastewater Supervisor Town of Wasaga Beach $163,182
Will Mann Team Supervisor, Water And Wastewater Regional Municipality of Halton $152,231
Edward Vanvliet Manager Water Wastewater Supervisory Control And Data Acquisition Regional Municipality of Niagara $152,677
Michael Klein Supervisor Water And Wastewater City of Richmond Hill $149,950
Brandon Sturge Team Supervisor, Water And Wastewater Regional Municipality of Halton $147,585
Dean Iamarino Supervisor of Wastewater Biosolids Management Regional Municipality of Halton $145,829

Yearly Average Paid

Year Total Employee Count Average Paid
2025135$123,304
2025135$123,304
2024117$120,495
202382$118,835
202149$113,088
201836$114,235
201737$113,946
201633$113,869
201522$115,371
201324$111,811
20105$106,394
20072$111,638
20062$106,921