Drinking Water Quality and Supply

From source to sink

Where Parksville water comes from

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

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

Deep dive for households

Parksville drinking water starts as a mix of surface water and wells. The named sources on the utility record are Englishman River (Arrowsmith Dam storage), Deep groundwater wells (Springwood and Railway well fields). That is the water that eventually reaches kitchen taps after treatment, not a separate bottled brand.

Parksville uses more than one treatment plant (Englishman River Water Treatment Plant (Herring Gull Way); Municipal groundwater wells). Utilities often run plants in parallel so different neighbourhoods can be served, or so one plant can cover for another during maintenance. Englishman River Water Treatment Plant (Herring Gull Way): ERWS joint venture (Parksville 74% / RDN 26%): sand separators, coagulation, UF membranes, UV, chlorination. Capacity 16 ML/d. Municipal groundwater wells: Sodium hypochlorite disinfection only before blending in city reservoirs.

After treatment, water moves through pumps, storage, and underground mains to reach streets and buildings. Four reservoirs (Top Bridge and Springwood); also supplies RDN Nanoose Bay Peninsula Water Service Area.

One detail that makes Parksville water feel local: Englishman River can turn tea-coloured in storms from watershed organics,membrane/UV plant was mandated by Island Health for Giardia/Cryptosporidium protection. 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

Mixed surface and groundwater

A blend of surface water and wells, depending on the neighbourhood or season.

Research confidence: high

Named source waters

  • Englishman River (Arrowsmith Dam storage)
  • Deep groundwater wells (Springwood and Railway well fields)

Treatment plants

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

  • Englishman River Water Treatment Plant (Herring Gull Way)

    ERWS joint venture (Parksville 74% / RDN 26%): sand separators, coagulation, UF membranes, UV, chlorination. Capacity 16 ML/d.

  • Municipal groundwater wells

    Sodium hypochlorite disinfection only before blending in city reservoirs.

How it reaches your street

Four reservoirs (Top Bridge and Springwood); also supplies RDN Nanoose Bay Peninsula Water Service Area.

Parksville water quality grades · All city rankings

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