Drinking Water Quality and Supply

From source to sink

Where Tillsonburg water comes from

A plain-language tour of the lakes, rivers, or wells that feed Tillsonburg, the plants that clean the water, and how it reaches kitchen taps. Lab grades for hardness, lead, and pH live on the water quality page.

On the map

Where Tillsonburg water lives

Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.

Map showing drinking-water locations for Tillsonburg

Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.

Deep dive for households

Tillsonburg drinking water starts as groundwater from wells. The named source on the utility record is Northwest and Southeast wellfields (11 wells; mix of secure groundwater and GUDI). That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Water is cleaned at Mall Road, Fairview, Plank Line, Bell Mill, Rokeby Road WTFs before it enters city pipes. Oxford County multi-site system: iron filtration and UV/chlorine at GUDI sites; chlorine disinfection at secure wells. 9,100 m³ north reservoir.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. 100% groundwater system serving ~20,000; Fairview boosts higher north service area. Long-term supply strategy underway for growth.

One detail that makes Tillsonburg water feel local: Seven of eleven wells are GUDI with effective in-situ filtration,groundwater that still needs UV-level pathogen barriers. Lab grades for hardness, lead, and pH sit on the city water quality page; this overview is about the route the water travels.

Where it starts

Groundwater

Wells and aquifers under the ground.

Research confidence: high

Named source waters

  • Northwest and Southeast wellfields (11 wells; mix of secure groundwater and GUDI)

Treatment plants

These are the buildings that filter and disinfect water before it enters city pipes.

  • Mall Road, Fairview, Plank Line, Bell Mill, Rokeby Road WTFs

    Oxford County multi-site system: iron filtration and UV/chlorine at GUDI sites; chlorine disinfection at secure wells. 9,100 m³ north reservoir.

How it reaches your street

100% groundwater system serving ~20,000; Fairview boosts higher north service area. Long-term supply strategy underway for growth.

Tillsonburg water quality grades · All city rankings

Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.