Prohibits cross-connections and requires owners to install a backflow prevention device (premises isolation) sized to the property's hazard classification, to protect the municipal drinking-water system from contamination.
Water & sewer — Sarnia, Ontario
What are the water and sewer rules and rates?
In the City of Sarnia, Ontario, water & sewer rules are set by Backflow Prevention By-Law No. 89 of 2016 and 4 other bylaws, verified 2026-10-18. Water rate: $ .37 per cubic meter (1991). Water fixed charge: $5.36/month (5/8" meter). Sewer rate: 134.01 per cent of the monthly distribution charge plus consumption charges.
| billing basis | flat and metered | s. 16(a)-(b) |
| water rate | $ .37 per cubic meter (1991) | Schedule "B" |
| water fixed charge | $5.36/month (5/8" meter) | Schedule "B" |
| billing period | varies: flat rates quarterly; industrial meters monthly; commercial meters quarterly; domestic meters half-yearly | s. 19(a)-(b) |
scout note
Governs municipal water service: application/connection to the water main, service-pipe and meter requirements at the owner's expense, and related charges; as amended, incorporates the City's seasonal lawn-watering restriction.
Reinstates seasonal outdoor watering restrictions, prohibiting lawn/garden watering from June 15 to August 31 inclusive each year, added as section 27 of the Water By-Law.
| connection mandatory | yes | Owner shall connect their property to allow for Sewage to drain |
scout note
Prohibits discharging pollutants into sanitary, storm or combined wastewater works that could damage the system or endanger workers, the public or the environment; sets discharge limits and requires grease/oil/sediment interceptors for food-related and other trade premises.
| billing basis | flat and metered | s. 1(a)-(b) |
| water rate | $0.9938/M3 (2026) | Schedule "B" |
| sewer rate | 134.01 per cent of the monthly distribution charge plus consumption charges | Schedule "A" |
| billing period | monthly | s. 5(c) |
scout note
2026: metered water $0.9938/m3 + monthly distribution charge $29.35 (5/8" meter), $36.10 (3/4"), $125.47 (1"); sewer charge 134.01% of monthly distribution + consumption charges. Billed via Bluewater Power.