Water Quality Guidelines

Ambient water quality guidelines are developed to assess and manage the health, safety and sustainability of B.C.’s aquatic resources. Water quality guidelines may be developed for the protection of aquatic life, wildlife, agriculture, drinking water sources and recreation.

B.C. Water Quality Guideline Updates (pdf)

Latest update: August 10th, 2017

Approved Guidelines

Current guidelines approved in B.C. that serve as environmental benchmarks for safe levels of specific parameters across the province.

Working Guidelines

These guidelines provide benchmarks for those substances not yet fully assessed and formally endorsed in B.C. 

Draft Guidelines

These are draft guidelines open for public review.