Dubbo Regional Council – Whylandra Street, West Dubbo – Design and Construction of GPT – Twin CDS 3030 with double depth sumps

In 2020 Optimal Stormwater won the tender to design and construct three (3) GPTs for Dubbo Regional Council. The most important site is located on Whylandra Street, West Dubbo with a 300 hectare catchment on twin 1800mm pipes discharging to the Macquarie River. The site was excavated to a depth of 11 metres with twin CDS Unit P3030 with double depth sumps installed. A diversion weir was installed on an existing pit. The project is the largest proprietary GPT in Australia and a timelapse video can be seen here: Twin CDS 3030 GPT installation in West Dubbo, NSW – largest proprietary GPT in Australia – YouTube.