Drinking Water Quality and Supply

From source to sink

Where Peterborough water comes from

A plain-language tour of the lakes, rivers, or wells that feed Peterborough, 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 Peterborough 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 Peterborough

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

Deep dive for households

Peterborough drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Otonabee River. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Water is cleaned at Peterborough Water Treatment Plant before it enters city pipes. Plant at 1230 Water Street North beside Riverview Park and Zoo. Dual Otonabee intakes, conventional coagulation/flocculation/sedimentation/filtration and chlorine disinfection. Rated capacity about 104 ML/d.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. High-lift pumping feeds city reservoirs and a distribution network with dry-barrel hydrants suited to freeze risk.

One detail that makes Peterborough water feel local: The city’s waterworks and the Riverview Park miniature-train dam sit on the same Otonabee reach,source water is an open river supply requiring full conventional treatment year-round. 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

Surface water

Rivers, lakes, or reservoirs, not underground wells as the main draw.

Research confidence: high

Named source waters

  • Otonabee River

Treatment plants

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

  • Peterborough Water Treatment Plant

    Plant at 1230 Water Street North beside Riverview Park and Zoo. Dual Otonabee intakes, conventional coagulation/flocculation/sedimentation/filtration and chlorine disinfection. Rated capacity about 104 ML/d.

How it reaches your street

High-lift pumping feeds city reservoirs and a distribution network with dry-barrel hydrants suited to freeze risk.

Peterborough water quality grades · All city rankings

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