What are the water and sewer rules and rates?

Water & sewer — Ottawa, Ontario: Water utility rates (effective April 1, 2026)

In the City of Ottawa, Ontario, water & sewer rules are set by Water utility rates (effective April 1, 2026), verified 2026-10-18. Water rate: $0.96/m3 (Tier 1, 0-6m3); $1.91/m3 (Tier 2, 7-25m3); $2.10/m3 (Tier 3, 26-180m3); $2.35/m3 (Tier 4, >180m3) (2026). Water fixed charge: $140.45/year (15mm meter). Sewer rate: $0.92/m3 (Tier 1, 0-6m3); $1.85/m3 (Tier 2, 7-25m3); $2.03/m3 (Tier 3, 26-180m3); $2.29/m3 (Tier 4, >180m3) (2026).

Water utility rates (effective April 1, 2026) adopted bylaw

billing basis	metered	Consumption Rates (Per m³) - All Properties
water rate	$0.96/m3 (Tier 1, 0-6m3); $1.91/m3 (Tier 2, 7-25m3); $2.10/m3 (Tier 3, 26-180m3); $2.35/m3 (Tier 4, >180m3) (2026)	Consumption Rates (Per m³) - All Properties
water fixed charge	$140.45/year (15mm meter)	Annual Fixed Rates
sewer rate	$0.92/m3 (Tier 1, 0-6m3); $1.85/m3 (Tier 2, 7-25m3); $2.03/m3 (Tier 3, 26-180m3); $2.29/m3 (Tier 4, >180m3) (2026)	Consumption Rates (Per m³) - All Properties

scout note

rates page: 2026 combined water+wastewater per m3 (tiers reset every 30 days): $1.88 (0-6 m3), $3.76 (7-25), $4.13 (26-180), $4.64 (>180). Fixed annual 15 mm meter: water $140.45, wastewater $129.21, fire supply $55.67. Stormwater $252.97/yr single/semi. Billing by meter read.