Posts by Alex Boynes
Sump Dewatering Spoilbank Marina – Port Hedland WA
The marina’s construction will relieve pressure on existing boat launching facilities while improving recreational boaters’ access and safety. It will also provide a lively new amenity for the whole community of Port Hedland to enjoy.The marina is expected to be operational in 2023. About Sump DewateringUnderground dewatering and drainage are required for mining operations, quarries,…
Read MoreDewatering – 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 – SA
Wellpoint Dewatering System for a stormwater upgrade Old Port Road Adelaide, South Australia. Old Port Road is a major arterial road connecting Adelaide and Port Adelaide. Old Port Road was one of the first roads established in the new colony of South Australia. NPE has installed a 60m Wellpoint Dewatering System to lower groundwater below…
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 MoreStudent Accommodation Development – NSW
Student Accommodation Development Dewatering was required to allow for the construction of student accommodation with a 2-level basement car park. Bulk excavation level approx. 5m BEGL with localised pits going further 1.5m deep to 6.5m BEGL. Installation of 240m perimeter dewatering system along with localised pit dewatering. Treatment to ANZEC 95% Freshwater guidelines. The Chemical…
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 MoreEmptying and Cleaning the Digester – Boliver SA
Digester emptying and cleaning works were carried out utilising NPE’s purpose-built pumping/mixing equipment suspended from a 60t crane. The pump is a heavy-duty, hydraulically powered unit specifically modified by NPE for these applications. The digester contents were pumped out via an NPE installed discharge line, which was connected to an adjacently installed existing pipeline that…
Read MoreBelconnen Trunk Sewer Augmentation – ACT
NPE were engaged to perform a critical bypass required in order for our client to complete the final stage of a major project building additional capacity and redundancy into the local water authorities wastewater network. NPE’s role was to install, commission and manage the sewer via a pumped overland bypass in order to provide a…
Read MorePump Station Bypass – Queensland
A local water authority recently asked NPE to provide a bypass for a pump station, the pump station needed to be taken offline to complete works. The bypass needed to be capable of 75L/S, this was diverting flow from a DN900 line. NPE mobilised the necessary pumps & pipework (200m) in a prompt manner delivering…
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