Basement Dewatering & Design
HGEC specialises in defining cost effective design groundwater levels (DGLs) for basements from excavation through operation, so structural, waterproofing and drainage designs are based on defensible hydrogeology.


Construction DGLs
- Groundwater elevations during works,
account for short wet sequences, site gradients, nearby drains/basements, and temporary dewatering.
Operational DGLs (SLS/ULS)
- We establish serviceability and ultimate-limit groundwater levels using Australian practice for loads on below-grade structures
- Outputs feed directly into FFLs, tanking extents, uplift checks and sub-slab drainage design.
Deliverables
- Clear methodology
- DGL watertable maps stated assumptions and sensitivity bands traceable datasets suitable for third-party audit.

Why HGEC?
With more than 24 years of experience in hydrogeology and environmental consulting, HGEC delivers clear, practical, and scientifically defensible groundwater advice. Our independent approach ensures groundwater resources are protected while enabling clients to plan with confidence and certainty.
