Dewatering for the construction of an apartment complex in Sydney, NSW

NPE maintains a large and diversified range of high-end pumping, power generation and associated equipment for hire or sale to suit any requirement. Committed to sourcing the world’s best equipment brands, NPE delivers the best-performing, safest and most reliable gear for your site. 

NPE doesn’t just deliver a piece of equipment, we work with our clients to supply a solution. Dewatering for the construction of an apartment complex in Sydney. NPE provided wellpoint dewatering to 300 linear metres with an excavation depth of 5.4m below ground level with water treatment. 

NPE installed one CDU, a dosing unit where flocculant, coagulant and pH adjustments were added to the treatment process. The unit also monitored the pH, turbidity and flow meter. Clarifiers were then added, where suspended and precipitated solids were removed for further filtration. The final step was the Metals Removal Module (MRM) for oxidation and filtration to remove elevated metal concentrations. 

A higher concentration of heavy metals in the groundwater, especially aluminium, zinc and copper, made achieving the 95% marine water trigger value to discharge a challenge. It was overcome by choosing the most suitable chemical compositions to treat the water, followed by activation and cleaning of MRM media to ensure maximum media efficiency. 

Critical Sewer Bypass Solution with Dual Diesel Pump System

National Pump & Energy (NPE) was engaged to support a critical infrastructure project with a temporary sewer bypass solution. The…

Read More

Bypass Pumping Solution at Boundary Creek

National Pump & Energy (NPE) was engaged by the Water Corporation’s Water Resource Development Team (WRDT) to implement a robust…

Read More

Creek Bypass & Dewatering Success at Mullet Creek

When D4C began infrastructure works at Mullet Creek, they faced complex water management challenges including maintaining creek flow, controlling groundwater…

Read More

Wellpoint Dewatering System Rottnest Island

Compact Wellpoint Dewatering System Delivered for Rottnest Island WWPS Project NPE recently delivered a compact wellpoint dewatering system for a…

Read More

NPE Doubles the Impact

We’re excited to announce that NPE has pledged to match every dollar we raise-up to $5,000-if we reach our fundraising…

Read More

West Dapto Dewatering & Water Treatment NSW

NPE is supporting critical sewer and water infrastructure works at West Dapto, the fastest-growing residential area in NSW outside Sydney,…

Read More

NPE Shines at NT Resources Week 2025

National Pump & Energy (NPE) was proud to exhibit at NT Resources Week 2025 in Darwin, showcasing our cutting-edge pumping,…

Read More