Three reservoirs, the Coquitlam, Capilano, and Seymour[i], provide Vancouver with fresh water. But did you know that the water has been treated twice by chlorine[ii]? Here are the key features of Vancouver water:
- soft, very few minerals (e.g. lead <0.5 µg/L ), though soda ash, lime, and carbon dioxide is added/will be added to control corrosion of city pipes
- neutral (city standard pH 6.5-8.5)
- low turbidity (city standard NTU <1)
- cool (city standard <15°C)
free chlorine (city standard >0.2 mg/L)
low E. coli (0 cfu/100mL)
- no chloramines, fluorination
In short, Vancouver is an ideal location for aquaponics due to its excellent water quality. Here are some useful links:
- water quality of your region
- water treatment process
- 2012 municipal water quality report
- Use 311 for other inquiries
To learn more about using local water supplies in aquaponics, sign up for our upcoming workshop.
 Another name is sodium carbonate (Na2CO3).
 Another name is sodium hydroxide (NaOH).
 Nephelometric Turbidity Units as defined by the US EPA. See <http://water.epa.gov/type/rsl/monitoring/vms55.cfm>.
 Colony forming units. See <http://en.wikipedia.org/wiki/Colony-forming_unit>.
[i] Metro Vancouver, “Sources & Supply,” Metro Vancouver, 2014, http://www.metrovancouver.org/services/water/source/Pages/default.aspx.
[ii] Ibid., sec. Secondary disinfection.