SurePave Case Study | Balclutha Water Treatment Plant

The Balclutha Water Treatment Plant draws raw water from the Clutha River to supply treated drinking water to the local community. In 2025, the plant underwent an upgrade to its intake system to improve the resilience and operational reliability of Balclutha’s water supply. Alongside the intake improvements, a surface upgrade around the car parking areas, tanks, and supporting infrastructure was undertaken as part of a broader modernisation project.

The Problem

Prior to the upgrade, the yard areas around the tanks and intake equipment were prone to wear, erosion, and water pooling. This created challenges for both day-to-day operations and long-term durability. Uneven and muddy ground was not only a hazard for staff but also hindered heavy vehicle movement. Stormwater runoff risked carrying contaminants into surrounding areas, conflicting with the plant’s role as a provider of safe, clean drinking water.

The installation of new intake infrastructure demanded a stable ground surface to support heavy lifting equipment and delivery vehicles. Health and safety was a key consideration, as a firm, mud-free environment reduces the risk of slips, trips, and falls for staff working around tanks and operational areas. Environmental management played an equally important role, with permeable paving identified as a way to manage stormwater on-site and reduce the risk of pollutants entering waterways. Operational efficiency was another driver, as a reinforced and well-drained yard surface would make vehicle movement smoother, provide better access for maintenance, and improve the overall cleanliness of the site.

The Solution

SurePave was selected as the surface reinforcement system for the upgrade due to its ability to meet the unique demands of a water treatment facility. Its permeable design ensures water infiltrates naturally, preventing puddling and excessive runoff, which is especially important at a site with significant vehicle traffic and sensitive environmental responsibilities. By allowing stormwater to filter through the ground, the system reduces the chance of oils, chemicals, or other contaminants being washed into the Clutha River.

SurePave is strong and durable. Its cellular structure distributes heavy loads evenly, preventing ruts and potholes from forming under constant vehicle use. The system was filled with angular 8mm – 20mm aggregate, creating a firm, stable surface that supports both foot traffic and heavy machinery. This improved the functionality of the plant’s operational areas while also making the environment cleaner and safer for staff.

SurePave can easily be cut and installed around tanks, pipe inlets and other infrastructure. Made from recycled materials, the system aligns with sustainable construction practices and offers long-term, low-maintenance performance compared with traditional paving options.

The Result

The completed surface upgrade has provided the Balclutha Water Treatment Plant with a modern, resilient yard area that complements its intake improvements. The reinforced SurePave system now offers a permeable yet stable surface that withstands heavy vehicle traffic while remaining safe for staff movement. By reducing runoff and allowing water to infiltrate naturally, the solution helps maintain a cleaner operating environment and minimises environmental impact.

Around the tanks and pipe inlets, the SurePave surface has created a neat and accessible area that supports efficient operations. Staff can now move confidently across the site, while vehicles benefit from reliable access even in wet conditions. The Balclutha Water Treatment Plant upgrade balances strength, sustainability, and practicality, ensuring its facilities are fit for the future.