Tammy Middleton
Regional Municipality of Waterloo/Senior Hydrogeologist
2023 Salary — last year on the list
$130,512Total 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
#149Regional Municipality of Waterloo
Years on List
152009–2023
Peak Salary
$130,5122023
Full 2023 roster at Regional Municipality of Waterloo →·See where $130,512 ranks →
Total Compensation History
Full History
2009–2023
$100,406 in 2009 is worth about $144,114 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2023 | Senior HydrogeologistRegional Municipality Of Waterloo | $130,512 |
| 2022 | Senior HydrogeologistRegional Municipality Of Waterloo | $126,733 |
| 2021 | Senior HydrogeologistRegional Municipality Of Waterloo | $124,269 |
| 2020 | Senior HydrogeologistRegional Municipality Of Waterloo | $123,034 |
| 2019 | Senior HydrogeologistRegional Municipality Of Waterloo | $120,932 |
| 2018 | Senior HydrogeologistRegional Municipality of Waterloo | $118,864 |
| 2017 | Senior HydrogeologistRegional Municipality of Waterloo | $116,826 |
| 2016 | Senior HydrogeologistRegional Municipality of Waterloo | $114,830 |
| 2015 | Senior HydrogeologistRegional Municipality of Waterloo | $117,431 |
| 2014 | Senior HydrogeologistRegional Municipality of Waterloo | $111,420 |
| 2013 | Senior HydrogeologistRegional Municipality of Waterloo | $110,036 |
| 2012 | Senior HydrogeologistRegional Municipality of Waterloo | $108,413 |
| 2011 | Senior HydrogeologistRegional Municipality of Waterloo | $106,284 |
| 2010 | Senior HydrogeologistRegional Municipality of Waterloo | $104,388 |
| 2009 | Senior 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.