Hydrogeologist Salary in Ontario (2025)
112 disclosed records, 2013–2025 · mostly Municipalities & Services (62%)
At a Glance
2025
Disclosed
28
2025 Sunshine List
Median Salary
$115,457
-5.6% vs provincial median
Typical Range
$110,029–$126,982
25th–75th percentile
Top Salary
$138,409
Who is the highest-paid Hydrogeologist in Ontario?
The highest-paid Hydrogeologist on the 2025 Sunshine List was Shawn Trimper at Environment, Conservation and Parks, with a salary of $138,409; the median among the 28 listed under this title was $115,457.
Take-Home Pay
(After Tax) · 2025 estimate
Federal and Ontario income tax on the 2025 Hydrogeologist median of $115,457 comes to about 22.2%, leaving roughly $84,301 a year — about $7,025 a month. The 2025 list carries 28 people filed as Hydrogeologist. Across every sector the 2025 median was $122,262, so this position sits about 6% below it. Half of those listed earned between $110,029 and $126,982. Pension contributions — likely OMERS in the Municipalities & Services sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$84,301
- Effective income-tax rate (excl. CPP/EI)
- ~22.2%
- CPP + EI contributions
- ~$5,507
- Per month, after tax
- ~$7,025
Where does $115,457 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.
Median by Year
2005–2025
Median salary paid among disclosed records. 2023 is absent: job titles were not disclosed that year. Years with fewer than five people are omitted.
Where They Work
2025 · employers with 5+
| Employer | People | Median | Top | Detail |
|---|---|---|---|---|
| Environment, Conservation and Parks | 16 | $110,029 | $138,409 | Pay here → |
| Regional Municipality of York | 5 | $126,982 | $128,997 | Pay here → |
Highest Paid
2025
| # | Name | Employer | Title as filed | Salary | Total |
|---|---|---|---|---|---|
| 1 | Shawn Trimper | Environment, Conservation and Parks | Hydrogeologist | $138,409 | $138,657 |
| 2 | Gregory Meek | Regional Municipality Of Durham | Hydrogeologist | $134,454 | $136,334 |
| 3 | Shelly Cuddy | Regional Municipality Of Durham | Hydrogeologist | $134,387 | $135,267 |
| 4 | Albanie Douglas | City Of Guelph | Hydrogeologist | $131,727 | $132,815 |
| 5 | Regine Cheung | Regional Municipality Of York | Hydrogeologist | $128,997 | $129,394 |
| 6 | Blythe Reiha | Regional Municipality Of York | Hydrogeologist | $127,334 | $127,731 |
| 7 | Tanya Kampherm Martin | Regional Municipality Of York | Hydrogeologist | $126,982 | $127,379 |
| 8 | Colleen Barfoot | Regional Municipality Of York | Hydrogeologist | $126,982 | $127,378 |
| 9 | Emily Hayman | Regional Municipality Of Waterloo | Hydrogeologist | $121,504 | $123,599 |
| 10 | Simon Thuss | Environment, Conservation and Parks | Hydrogeologist | $119,531 | $119,765 |
By Year
Related Positions
- Constable5,795
- Firefighter5,399
- Police Constable4,778
- Operator3,992
- Primary Care Paramedic2,883
- Sergeant1,600
- Captain1,385
- Plainclothes Police Constable1,286
About these figures
Source: Ontario’s Public Sector Salary Disclosure (the “Sunshine List”), which names every public-sector employee paid $100,000 or more in a calendar year. Figures are disclosed salaries, not market compensation: anyone in this position earning under $100,000 does not appear, so medians here sit above the true median for the job.
Medians and percentiles use salary paid (benefits excluded), computed over records whose filed job title was normalized into this position. Titles are as each employer filed them; spellings, word order and bilingual forms are merged. Employers and years with fewer than five people show counts only. 2023: job titles were not disclosed, so that year has no position data.
Data through 2025, the most recent Sunshine List disclosed.