William Vanderzwart

Ontario Power Generation/Supervising Nuclear Operator First Line Manager Assistant

2025 Salary

$161,725

Total compensation $163,482, including $1,758 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

#5,375

Ontario Power Generation

Years on List

2007–2025

Peak Salary

$171,728

2017

Full 2025 roster at Ontario Power Generation →·See where $161,725 ranks →

Total Compensation History

Total compensation, 2007–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2007–2025

$105,648 in 2007 is worth about $155,581 in 2025 dollars.

Full salary history, by year
Year	Employer	Position	Salary	Benefits	Total
2025	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$161,725Benefits $1,758Total $163,482	$1,758	$163,482
2024	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$155,074Benefits $7,850Total $162,924	$7,850	$162,924
2023	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$150,082Benefits $7,660Total $157,742	$7,660	$157,742
2022	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$131,922Benefits $6,868Total $138,790	$6,868	$138,790
2021	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$131,557Benefits $6,177Total $137,734	$6,177	$137,734
2020	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$148,343Benefits $5,548Total $153,891	$5,548	$153,891
2019	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$166,386Benefits $4,811Total $171,197	$4,811	$171,197
2018	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$169,561Benefits $4,815Total $174,376	$4,815	$174,376
2017	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$171,728Benefits $5,333Total $177,061	$5,333	$177,061
2016	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$156,506Benefits $1,538Total $158,045	$1,538	$158,045
2015	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$155,423Benefits $1,529Total $156,953	$1,529	$156,953
2014	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$158,127Benefits $1,522Total $159,649	$1,522	$159,649
2013	Ontario Power Generation	Supervising Nuclear Operator First Line Manager AssistantOntario Power Generation	$157,010Benefits $1,501Total $158,512	$1,501	$158,512
2012	Ontario Power Generation	Supervising Nuclear Operator, First Line Manager AssistantOntario Power Generation	$145,875Benefits $1,480Total $147,354	$1,480	$147,354
2011	Ontario Power Generation	Supervising Nuclear Operator, First Line Manager AssistantOntario Power Generation	$141,731Benefits $1,461Total $143,192	$1,461	$143,192
2010	Ontario Power Generation	Supervising Nuclear Operator, First Line Manager AssistantOntario Power Generation	$130,904Benefits $1,367Total $132,271	$1,367	$132,271
2007	Ontario Power Generation	Nuclear OperatorOntario Power Generation	$105,648Benefits $1,201Total $106,848	$1,201	$106,848

Take-Home Pay
(After Tax) · 2025 estimate

William Vanderzwart was paid $161,725 in 2025; after income tax, CPP and EI that is roughly $110,338, an effective income-tax rate of about 28.4%. For comparison, the median Supervising Nuclear Operator, FLM Assistant on the 2025 list was paid $190,560; this salary is about 15% less. William Vanderzwart has appeared on the list 17 times since 2007. Members of OMERS, OTPP, HOOPP or OPTrust typically take home another 7–10% less after pension contributions, which this estimate leaves out.

Estimated net pay: ~$110,338
Effective income-tax rate (excl. CPP/EI): ~28.4%
CPP + EI contributions: ~$5,507
All-in deduction rate (incl. CPP/EI): ~31.8%
vs. 2025 Supervising Nuclear Operator, FLM Assistant median: −15%

Where does $161,725 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.

Also at Ontario Power Generation
2025

Also at Ontario Power Generation, 2025
#	Name	Position	Salary	Total
1	Kenneth Hartwick	Special Advisor	$1,907,409	$1,910,992
2	Nicolle Butcher	President and Chief Executive Officer	$1,596,218	$1,598,309
3	Steve Gregoris	Chief Nuclear Officer	$1,092,855	$1,096,651
4	Aida Cipolla	Chief Financial Officer and Chief Administrative Officer	$1,013,496	$1,016,119
5	Subo Sinnathamby	Chief Projects Officer	$981,476	$985,253
6	Mark Knutson	Chief Enterprise Engineering and Chief Nuclear Engineer	$856,947	$859,793
7	Jon Franke	Senior Vice President Nuclear	$826,655	$828,637
8	Shelley Babin	Chief Operations Officer	$748,469	$750,849
9	Brenda Macdonald	Chief Commercial Officer	$727,479	$729,740
10	David Kaposi	Executive Vice President Investment Strategy and Business Development	$701,432	$703,541