PROJECT 25
plant, as well as social and environmental challenges arising from discharging sewage into the lower Kuils River arose
• The project featured an extremely complicated inlet works – situated 10m below ground level and approximately seven metres below the water table – which required staged dewatering as well as construction of a raft foundation, comprising 700m 3 of continuous concrete, to anchor the table pump station located below the water table
• The installation of new pipelines required precision, care, risk identification and management thereof
• The plant is gravity-fed with no retention capacity, thus connecting the new works was a live tie-in operation, which required meticulous planning and execution
The results Gordon Hill-Lewis, mayor of Cape Town, commented on the WWTW noting:“ Proper, functioning sanitation is the difference between a life of struggle and a life of dignity. Today we’ re not just celebrating an impressive piece of infrastructure – we’ re celebrating a big step up in the dignity of the residents of these communities.”
Craig agreed, adding that these upgrades and improvements ultimately impact“ lives – and the dignity – of the families who live in the areas serviced by this plant”. PA
The Zandvliet Waste Water Treatment Works.
Owner Managing Agent Main Contractor
Plumbing Contractor Suppliers
References 1. Cape Town ETC 2. Zutari 3. Stefanutti Stocks 4. Richard Craig, Greenfields Plumbing
City of Cape Town Zutari Engineering Haw & Inglis Civils / Haw & Inglis Building Greenfields Plumbing Design Plumblink Western Cape
Urgent rehabilitation was needed to meet the ever-rising demands of the region, and the additional 18 million litres-per-day processing capacity provided by the upgrade was the solution.
January 2026 Volume 31 I Number 11 www. plumbingafrica. co. za