Telephone: 1.306.343.9549

The SSRWSI is a

grassroots, community driven, non-profit organization working within the watershed to implement programs and initiatives that will protect the water resource.

Decommission Abandoned Water Wells

Posted on: 20th August 2018 |,Written by | Southsaskriver Stewards , Under | Other News, SSRWSI News

There are numerous reasons to decommission abandoned water wells on your property including protection of groundwater resources and the safety of your family. Decommissioning a well properly seals off the well to prevent contaminants from entering the water supply.

General steps to decommission a bored water well.

  • Disinfect water with a shock chlorination.
  • Slowly pour bags of bentonite into the well, pouring enough for a one-foot-thick layer of bentonite.
  • Backfill well with clean sand or gravel, to within ten feet of the surface. Excavate ten feet and remove the casing. Call Sask Power before digging!
  • Additional Bentonite seals should be placed between zones. This will be specific to each well.
  • Pour enough bags of bentonite for a one-foot-thick layer to seal the top. This layer of bentonite should extend a foot beyond the edges of the removed casing.
  • The top ten feet should be filled in with clean clay and tamped down every foot.
  • Backfill over the edge of the well hole and mound up one to two feet to allow for drainage and setting.

WSA Well Diagram

Picture: Water Security Agency

Complete details on how to properly decommission a large diameter well can be obtained from the Water Security Agency. Small diameter drilled wells need to be decommissioned by a registered well driller.

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