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Water Rates and Charges
Understanding Your Water Bill
Water and wastewater charges are billed by Oakville Hydro on behalf of Halton Region; who set the water and wastewater rates. Your total bill is made up of:
- A monthly service charge based on meter size
- A consumption charge based on 100% of water consumption
The Halton Region Water & Wastewater Rates for 2025 were approved and take effect on January 1, 2025. These rates include a combined increase of 5.5% over 2024 rates. To view Halton Region’s 2025 Rate Card, click here.
Combined water and wastewater rates (effective January 1, 2025)
Fixed service charge based on water meter size*
| Meter Size | Residential | Commercial/Industrial/Institutional |
| 20 mm or less | $38.35 | $38.35 |
| 25 mm | $66.81 | $124.17 |
| 40 mm | $118.80 | $203.87 |
| 50 mm | $276.73 | $445.98 |
| 75 mm | $503.94 | $795.00 |
| 100 mm | $872.66 | $1,359.37 |
| 150 mm | $2,239.09 | $3,454.12 |
| 200 mm | $3,605.52 | $5,549.22 |
| 250 mm | $4,438.60 | $6,932.90 |
Usage charges per cubic metre
(1 m3 = 1,000 litres)
| Cubic Meters (m3) | Residential | Commercial/Industrial/Institutional |
| Per Cubic Meter | $3.1535 | $3.1535 |