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Abandoned well decommissioning

Prevent an old well from becoming a contamination pathway or physical hazard by identifying it, properly decommissioning it and documenting the work.

VERT / GREEN

Find drilling record, location, depth and historical use before work.

JAUNE / YELLOW

An unused well should not simply be covered or filled with debris; decommissioning protects aquifers.

ROUGE / RED

Open, flowing, contaminated or uncertain well near excavation: specialist/local authorization required.

Interactive triage

Helps choose the next step; does not replace design, permits or professional diagnosis.

Useful tools and data

What the professional checks

Official sources

Checked 2026-08-22.