Groundwater Quality The West Coast Regional Council monitors groundwater quality and aquifer levels in 30 wells across the region. This data is used to assess state and trends in water chemistry, as well as microbial health. Groundwater quality and quantity state and trends 2018.pdf (PDF, 3.7MB) West Coast Groundwater SOE 2005.pdf (PDF, 3.5MB) West Coast Groundwater SOE 2009.pdf (PDF, 1.8MB)
