Posts Tagged ‘WA’
Dewatering – Rottnest WA
DM Civil engaged with NPE to assist with a Wellpoint Dewatering System for a new DN1200 emergency overflow storage tank for the North Thomson Sewerage Pump Station #06 on Rottnest Island in WA. Rottnest Island is located 18km offshore from Fremantle and is only accessible by boat. The client required a dry site which was…
Read MoreWellpoint Dewatering – WA
NPE were engaged by our client regarding installing an LLDPE 11000 litre tank. The depth to the static groundwater level was 1.5m below surface ground level, and the concrete footing for their tank base needed to be dry down to 2.6m invert from GL (ground level). NPE mobilised to the site and installed a Wellpoint…
Read MoreChallenging Dewatering on Contaminated Grounds – Balcatta WA
We were engaged by BOS Civil, which required prompt dewatering in troublesome ground conditions throughout their 2 x extensive basin excavation works in Balcatta, WA. The following morning, NPE mobilised all plant and technician specialists to start the wellpoint installation. The ground’s existing building materials, including rubble, bricks, steel, car diffs, and other obstructions, became apparent…
Read MoreHydromining Process Water Pond – Pilbara WA
Over time, water ponds that are gravity fed become full of tailings, which reduce their storage and surge capacity. These ponds require tailings to be removed periodically; however, excavation methods can present some risks of liner damage. Hydromining is the perfect solution. It agitates the solids (tailing build-up), pumping it back to the tailings dam.…
Read MoreSpear Dewatering for Deep Sewer Installation
Georgiou contacted NPE to install a Dewatering system into a new subdivision in Ellenbrook, WA. This project required 1km of spear Dewatering for deep sewer. Our Dewatering & Water Treatment team provided our client with Piston Pumps, BBA100 Pumps, a Clarifier, and CDU Unit. This was able to keep the site dry & the water…
Read MoreNorthern Dive Update – WA
Our client Tonkin Gap Alliance is constructing the Northern Dive as part of its METRONET Morley-Ellenbrook Line rail enabling works. The Northern Dive requires dewatering of over 900,000kL during its construction. This required NPE to design the dewatering set-up to allow for the extraction water’s treatment and re-infiltration to protect the adjacent Banksia Woodland threatened…
Read MorePerth City Link Rail
NPE was contracted with the Perth City Link Rail Alliance to provide a detailed design, construct and supply, operate and maintain a dewatering and water treatment system for the Pedestrian underpass, the 620m cut and cover tunnel and the approach ramps between the heritage listed Horseshoe Bridge and Milligan Street. The scope involved design and installation of…
Read MoreRoy Hill Iron Ore Train Unloader
The Roy Hill project includes the construction of a new iron ore mine at Roy Hill deposit, a mine processing plant and a heavy haul railway system from the mine to the port in the south west region of Port Hedland. NPE was contracted to design and install a dewatering system inclusive of drilling boreholes that…
Read MoreDewatering & Water Treatment at Perth Busport Project, WA
NPE were involved in this project for the drilling and installation of a series of pumping wells within the excavation and recharge wells outside the excavation to create an efficient dewatering system that depressurised the aquifers and lowered and maintained the groundwater table by eight (8) metres next to the existing underground tunnel. The biggest…
Read MoreElizabeth Quay Project, WA
The Elizabeth Quay project is located in the centre of Perth’s river foreshore and located next to the landmark Perth Bell Tower. The Scope of works was to design the system, perform all of the dewatering onsite and monitor the disposal of all waters captured onsite for the construction of an artificial inlet on what…
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