Water Quality Objectives

Last updated on February 14, 2025

Water quality protection or improvement is essential to support:

  • Ecosystems
  • Human health, and
  • Other shared water values

Water Quality Objectives (WQOs) provide approved policy direction to guide the balance between human use, values and water environments by guiding decisions that may impact a specific waterbody.

WQOs are established on a priority basis for freshwater, estuarine and marine waterbodies of regional, provincial, inter-provincial and international significance.

They're used to:

  • Inform resource management decisions
  • Identify which values should be addressed based on local concerns
  • Promote water stewardship, and
  • Support long-term planning in communities across B.C.

WQOs are numbers or statements representing low-risk conditions to provide protection for a specific waterbody and its associated water values and uses.

These include:

  • Drinking water sources
  • Aquatic life and its habitat
  • Wildlife and its habitat
  • Agriculture (livestock watering and irrigation)
  • Recreational use and aesthetics
  • Traditional, cultural and social uses

Objectives are informed by a site-specific water quality assessment using:

  • B.C. approved water quality guidelines or similar information
  • The values identified for the waterbody
  • The desired level of protection, and
  • Local and Indigenous knowledge

The development of WQOs is a collaborative process and may include partnerships with other levels of government, including First Nations.

New WQOs

WQO reports

Draft WQOs

Draft Water Quality Objective Policy Reports are open for public review:

WQO reports for download

Contact information

Contact our Water Quality Science Specialist for more information: