Requires backflow-prevention devices on water services to protect Hamilton's municipal drinking-water system from contamination; sets testing/inspection and compliance requirements.
Water & sewer — Hamilton, Ontario
What are the water and sewer rules and rates?
The City of Hamilton, Ontario has 4 adopted bylaws on file: Backflow Prevention By-law No. 10-103 (Consolidation); Sanitary Surcharge and Wastewater Abatement By-law No. 03-272; Sewer Use By-law No. 14-090 (Consolidation, Jan 2023); Sewers and Drains By-law No. 23-234 (Consolidation, Dec 2025), verified 2026-08-23.
Sets surcharge fees/rates for high-strength industrial/commercial wastewater discharge above normal sewer-use limits, and the abatement/rebate process; posted by the City via its most recent (2021) amending consolidation.
Regulates discharge of sewage/wastewater and industrial effluent into Hamilton's sanitary and storm sewer systems, incl. prohibited discharges and connection requirements.
Governs construction, connection to, and use of sanitary/storm sewers and drains on private and public property; current version, having replaced the repealed By-law 06-026 and its amendments.