Excavation dewatering and groundwater pumping

Evaluate where pumped water goes, effects on soil/neighbours, and whether withdrawal/discharge authorization is required before major pumping.

VERT / GREEN = documenter · JAUNE / YELLOW = vérifier · ROUGE / RED = arrêter/faire valider.

Significant continuous pumping planned
Assess hydrogeology, authorizations and discharge before starting. Neighbouring foundations/compressible soil
Assess potential settlement from drawdown. Discharge to street/sewer/land planned
Verify permission, water quality and receiving capacity. Pumping/discharge/monitoring plan documented
Track levels and incidents during excavation.

What the professional checks

Assess flow, drawdown and geotechnical effects
Confirm authorization and discharge destination

Official sources

Québec — autorisation environnementale, prélèvement d’eau

Checked: 2026-08-22

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