Cistern Installation & Replacement in Alberta

How this works in Alberta

Stored water covers a pump failure, a dry well, or a fire truck that needs a reserve. It is unglamorous and it is what keeps the household running.

A cistern is the default water supply on many Alberta acreages where a well is deep, low-yield or salty, and on parcels around Edmonton and Calgary where hauled water is cheaper than drilling. Size it on household use plus a fire and delivery buffer: most acreage cisterns are in the 1,000 to 5,000 gallon range, and a larger tank means fewer water-hauling trips.

Buried cisterns need to sit below frost or be insulated, which in most of Alberta means a deep excavation, a stable base and backfill that will not crush the tank. Use a tank rated for potable water, plan a vent and a lockable access riser, and keep it well away from the septic field. Fill it only from a hauler who carries potable water.

A quote is mostly excavation and backfill, the tank itself, the pump and pressure system inside the house, and any treatment. Some counties have offered cistern cost-sharing; Saddle Hills County, for example, has published a residential cistern subsidy. Ask your county before you buy.

Rural Albertans use cisterns where a well yields too little water, where the groundwater is unsuitable to drink, or where treated water is hauled in or piped from a water co-op. The cistern and the water in it count as a private water supply, so keeping them safe is the owner's job. Cistern design, materials, installation and decommissioning fall under CSA Standard B126 Series-13, Water Cisterns.

Placement is the first decision. Cisterns are usually buried below frost level to keep them from freezing, or placed inside a heated building. They need an access point at ground level, a watertight lid, a fill port and a vented overflow pipe. The overflow should be turned down, screened with fine mesh, and high enough not to be buried by snow or flooded by rain. Slope the ground so rain and snowmelt drain away, and keep trees back so roots do not damage the tank. Leave room for a water hauler's truck to reach the fill port.

Water quality depends on the source. Water hauled from a treated municipal supply needs no further treatment as long as a free chlorine residual of 0.2 mg/L is maintained. Untreated groundwater from a low-yield well needs continuous disinfection. If you use UV or ozone instead of chlorine, test for total coliform more often, because those systems leave no residual you can measure.