Skip to content

Tammy Middleton

Regional Municipality of Waterloo/Senior Hydrogeologist

2023 Salary — last year on the list

$130,512

Total compensation $132,857, including $2,346 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
2023

Employer Rank

#149

Regional Municipality of Waterloo

Years on List

15

2009–2023

Peak Salary

$130,512

2023

Full 2023 roster at Regional Municipality of Waterloo →·See where $130,512 ranks →

Total Compensation History

Total compensation by yearLine chart of 15 yearly values of total compensation, from $101,600 in 2009 to $132,857 in 2023.$100K$110K$120K$130K$140K200920122015201720202023
Total compensation, 2009–2023. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2009–2023

$100,406 in 2009 is worth about $144,114 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2023Senior HydrogeologistRegional Municipality Of Waterloo$130,512
2022Senior HydrogeologistRegional Municipality Of Waterloo$126,733
2021Senior HydrogeologistRegional Municipality Of Waterloo$124,269
2020Senior HydrogeologistRegional Municipality Of Waterloo$123,034
2019Senior HydrogeologistRegional Municipality Of Waterloo$120,932
2018Senior HydrogeologistRegional Municipality of Waterloo$118,864
2017Senior HydrogeologistRegional Municipality of Waterloo$116,826
2016Senior HydrogeologistRegional Municipality of Waterloo$114,830
2015Senior HydrogeologistRegional Municipality of Waterloo$117,431
2014Senior HydrogeologistRegional Municipality of Waterloo$111,420
2013Senior HydrogeologistRegional Municipality of Waterloo$110,036
2012Senior HydrogeologistRegional Municipality of Waterloo$108,413
2011Senior HydrogeologistRegional Municipality of Waterloo$106,284
2010Senior HydrogeologistRegional Municipality of Waterloo$104,388
2009Senior HydrogeologistRegional Municipality of Waterloo$100,406

Take-Home Pay
(After Tax) · 2023 estimate

Of the $130,512 Tammy Middleton earned in 2023, roughly $91,511 would remain after income tax, CPP and EI, an all-in deduction rate of about 29.9%. Compared with 2022, when the figure was $126,733, that is a rise of about 3%. At Regional Municipality of Waterloo, 633 people made the 2023 list with a median salary of $118,335; Tammy Middleton's total compensation of $132,857 ranked #149. After pension contributions (probably OMERS in this sector), take-home is usually a further 7–10% lower.

Estimated net pay
~$91,511
Effective income-tax rate (excl. CPP/EI)
~26.2%
CPP + EI contributions
~$4,756
All-in deduction rate (incl. CPP/EI)
~29.9%

Where does $130,512 rank on the Sunshine List? →

Estimate only: 2023 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 Regional Municipality of Waterloo
2023

View all 633 employees at Regional Municipality of Waterloo (2023) →