Drinking Water Quality and Supply

From source to sink

Where Grand Falls-Windsor water comes from

A plain-language tour of the lakes, rivers, or wells that feed Grand Falls-Windsor, 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 Grand Falls-Windsor 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 Grand Falls-Windsor

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

Deep dive for households

Grand Falls-Windsor drinking water starts as surface water (rivers, lakes, or reservoirs). The named source on the utility record is Northern Arm Pond / Exploits regional surface system. That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Water is cleaned at Exploits Regional Water Treatment Plant (New Bay Road) before it enters city pipes. Conventional plant (1995): hydrated lime pre-treatment, alum coagulation, plate settlers, multi-media filters, gas chlorination, lime post-pH. Design ~27.5 ML/d; orthophosphate corrosion control added ~2025.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. GFW operates plant for region serving GFW, Bishop's Falls, Botwood, Peterview, Northern Arm (~23,000 people).

One detail that makes Grand Falls-Windsor water feel local: One regional plant and dam on Northern Arm Pond feed five Exploits communities under a shared water-supply committee. 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

  • Northern Arm Pond / Exploits regional surface system

Treatment plants

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

  • Exploits Regional Water Treatment Plant (New Bay Road)

    Conventional plant (1995): hydrated lime pre-treatment, alum coagulation, plate settlers, multi-media filters, gas chlorination, lime post-pH. Design ~27.5 ML/d; orthophosphate corrosion control added ~2025.

How it reaches your street

GFW operates plant for region serving GFW, Bishop's Falls, Botwood, Peterview, Northern Arm (~23,000 people).

Grand Falls-Windsor water quality grades · All city rankings

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