Radiation Protection and Safety First Line Manager Assistant Salary in Ontario (2025)
305 disclosed records, 2008–2025 · mostly Ontario Power Generation (60%)
At a Glance
2025
Disclosed
20
2025 Sunshine List
Median Salary
$165,562
+35.4% vs provincial median
Typical Range
$160,373–$187,946
25th–75th percentile
Top Salary
$218,198
Who was the highest-paid employee under the title "Radiation Protection and Safety First Line Manager Assistant" in Ontario in 2025?
The highest-paid record grouped under the title "Radiation Protection and Safety First Line Manager Assistant" on the 2025 Sunshine List was Michael Osso at Ontario Power Generation, with a salary of $218,198; the median among the 20 listed under this title was $165,562.
Take-Home Pay
(After Tax) · 2025 estimate
A Radiation Protection and Safety First Line Manager Assistant paid the 2025 median of $165,562 would take home roughly $112,450 after income tax, CPP and EI — about $9,371 a month, an all-in deduction rate of about 32.1%. The 2025 list carries 20 people grouped under the title Radiation Protection and Safety First Line Manager Assistant. This estimate leaves out pension contributions; members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less.
- Estimated net pay
- ~$112,450
- Effective income-tax rate (excl. CPP/EI)
- ~28.8%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~32.1%
- Per month, after tax
- ~$9,371
Where does $165,562 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
Where They Work
2025 · employers with 5+
| Employer | Median | Detail |
|---|---|---|
| Ontario Power Generation | $165,562 | Pay here → |
Highest Paid
2025
| # | Name | Salary | Total |
|---|---|---|---|
| 1 | Michael OssoRadiation Protection and Safety, First Line Manager Assistant | $218,198 | $223,473 |
| 2 | Christopher SullivanRadiation Protection and Safety, First Line Manager Assistant | $207,593 | $217,121 |
| 3 | David SinkinsRadiation Protection and Safety, First Line Manager Assistant | $198,964 | $200,577 |
| 4 | Stephen BrownRadiation Protection and Safety, First Line Manager Assistant | $191,140 | $200,388 |
| 5 | Lisa LewisRadiation Protection and Safety, First Line Manager Assistant | $189,531 | $193,729 |
| 6 | Jeffrey MorleyRadiation Protection and Safety, First Line Manager Assistant | $187,946 | $192,443 |
| 7 | Mats JohanssonRadiation Protection and Safety, First Line Manager Assistant | $184,682 | $194,063 |
| 8 | Eddie PaivaRadiation Protection and Safety, First Line Manager Assistant | $182,041 | $190,084 |
| 9 | Carrie LongRadiation Protection and Safety, First Line Manager Assistant | $174,156 | $180,463 |
| 10 | Jeremy WaltersRadiation Protection and Safety, First Line Manager Assistant | $165,677 | $172,772 |
By Year
Related Positions
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.
Data through 2025, the most recent Sunshine List disclosed.