Thank you and congratulations Dubbo Regional Council on your choice of proven twin Rocla CDS® P3030 recently installed to protect the Macquarie River and waterways like no other GPT.

Safely and capably installed by Whittaker Civil with design and project management by our long-standing partner Optimal Stormwater.

With a heritage of the largest installed capacity of GPTs, Rocla partners with forward thinking asset owners, consultants and customers – like Dubbo Regional Council, Optimal and Whittaker - to develop effective, proven and reliable stormwater solutions.

Care of Optimal and site supervisor Peter Warnock here are the facts about this BIG project:

• 300 hectre catchment area
• ~2,000m3 of spoil was excavated to a depth of 12m
• The twin CDS® units can reliably treat up to 3,750L litres per second of stormwater
• Each CDS® P3030 contains 66 tonnes of pre-cast concrete including a sump extension to hold 20m³ of pollutants delivering a combined project storage capacity of 40m³
• Rocla's unique CDS screen technology will treat up to 95% of gross pollutants, down to 1mm in size. It is prefabricated and assembled on site with no welding required.
• To accept overland flows Optimal Stormwater included an energy dissipating apron surrounding a new “Letter Box” grate on the diversion chamber.
• A compacted crushed granite hard stand was constructed for cleaning and maintenance access.

 Find out more: 

• See the flawless assembly in a time lapse video care of Whittaker Civil:
• https://youtu.be/70QgUHR_Sto 
• Hear form Dubbo regional Council:
• https://www.dubbo.nsw.gov.au/news-and-media/news-and-resources/media-releases/2021/forty-tonne-trap-catches-river-rubbish
• Find out more about how Landcare uses GPT technology to protect inland waterways: 
• https://landcare.nsw.gov.au/groups/mid-macquarie-landcare/gross-pollutant-trap-success/

For sizing and industry leading design reach out to us at waterqualitysolutions@rocla.com.au or the contact page at www.Rocla.com.au