Treatment of groundwater from tunnelling and excavation projects for compliant discharge or beneficial reuse, handling sediment, pH adjustment, and contaminant removal.
Specialised water treatment for metro & tunnelling. TBM slurry, dewatering and construction discharge compliance.
Groundwater treatment for tunnel dewatering operations. Remove suspended solids, adjust pH and manage contaminated water.
Recycle tunnelling wastewater for TBM slurry makeup, dust suppression and concrete batching.
Sediment and suspended solids removal for tunnel construction wastewater.
An overview of groundwater dewatering during excavation — collecting and treating ingress for compliant discharge or reuse. This page frames the problem; the engineering guides cover the treatment steps in depth. It explains where the water comes from, how its quality changes with the ground, and which contaminants drive the treatment design. Use it as the starting point before moving into the detailed dewatering and discharge-compliance guides that specify the individual stages.
Specialised Solutions for Groundwater Treatment
Underground construction generates large volumes of groundwater that must be pumped out to maintain dry working conditions. This water often contains suspended solids, dissolved minerals, and potential contaminants that require treatment before discharge to sewers or surface waters. Our groundwater treatment systems ensure regulatory compliance while enabling water reuse opportunities. Lamella settlement, media filtration and pH correction bring pumped groundwater within Trade Effluent or surface-water consent before it leaves site. We size each plant for the project’s peak dewatering rate so works are never held up by water management.
Multi-stage solids separation removes sand, silt, and suspended particles to meet discharge standards for total suspended solids (TSS).
Automated pH neutralisation systems ensure discharge within acceptable ranges, protecting receiving waters and infrastructure.
Treated groundwater can be reused for dust suppression, equipment washing, concrete production, and site irrigation.
Real-time water quality monitoring with data logging for regulatory compliance documentation and reporting.
Groundwater Treatment Projects
Groundwater treatment for road, rail, and utility tunnels with high-volume dewatering requirements.
ExploreTreatment for basement and foundation excavations in high water table conditions.
ExploreHigh-head dewatering treatment for vertical shafts and caissons with deep groundwater.
ExploreLarge-scale groundwater treatment for underground station and interchange construction.
ExploreEnhanced treatment for groundwater containing contaminants from previous land use.
ExploreHigh-volume treatment for quarry and open-pit operations with continuous pumping.
ExploreMulti-Stage Groundwater Treatment
Submersible pumps extract groundwater from wellpoints, deep wells, or sumps.
Products for Groundwater Treatment
Coarse and fine screens for debris removal and equipment protection.
Hydrocyclones and sand traps for efficient sand and grit removal.
High-rate inclined plate settlers for suspended solids removal.
Automated chemical dosing systems for pH neutralisation.
Pressure and multimedia filters for final polishing.
Pre-assembled treatment systems for rapid deployment.
Why Choose Reynolds & Bauhm
Explore Other Metro & Tunnelling Solutions
High-volume pumping and treatment for excavation dewatering in urban environments.
Explore Metro DewateringDewatering and treatment for vertical shaft sinking and underground station excavation.
Explore Metro ShaftsComplete slurry treatment systems for tunnel boring machine operations.
Explore Metro TbmSystems for treating and recycling water on tunnelling and construction sites.
Explore Metro Water ReuseContact our experts to design a system tailored to your project requirements.
Our expertise spans multiple industries with sector-specific water treatment solutions.