We keep the water moving - quietly, reliably, and with purpose. Our operations and maintenance team is the engine room behind the delivery of safe drinking water, effective wastewater treatment, and resilient stormwater systems.
Every day, we’re out in the field inspecting, repairing, and optimising the infrastructure that supports our communities. From pump stations and treatment plants to reservoirs and pipelines, we ensure everything runs smoothly, often before anyone notices there was a problem. We don’t just fix faults, we prevent them.
Our proactive maintenance programmes include valve exercising, hydrant flushing, pump servicing, and process tuning to keep systems performing at their best. When things do go wrong, our crews respond fast, with the tools and know-how to restore services and protect public health. We work with purpose and precision, guided by environmental responsibility and a deep understanding of local conditions. Whether it’s a burst main in the middle of the night or a stormwater overflow during a downpour, we’re there, ready to act.
Our operations team also feeds valuable insights back into planning and asset management, helping shape smarter investments and long-term resilience. We manage and maintain multiple wastewater treatment plants in the Top of the South.
How we can help
Our operations and maintenance teams ensure safe drinking water, effective wastewater treatment, and resilient stormwater systems through proactive maintenance, rapid response, and optimisation of essential infrastructure.
Kūmānu delivers end-to-end wastewater management services, operating and maintaining every aspect of wastewater systems, from treatment plants to extensive reticulated pipe networks. We operate the Nelson North Wastewater and Bell Island Wastewater Treatment Plants at the top of the South Island, applying our technical expertise to ensure the safe, balanced reintroduction of treated water into the environment. Our environmentally responsible approach protects natural water resources for the generations to come.
Our comprehensive services include collection system management and maintenance, repair and reinstatement from blockages and overflows, and the operation and upkeep of treatment plants. We prioritise environmentally conscious wastewater disposal, provide training and education, and offer equipment analysis and evaluation to ensure optimal performance. With deep knowledge of best treatment practices, we also deliver expert consultation, project management, contractor liaison, and stakeholder communication — ensuring effective, sustainable outcomes for our communities. We also manage daily network operations, including blockage clearance, proactive and reactive maintenance of pipes and pump stations, dye and smoke testing, leak detection, and advanced ‘no dig’ repair solutions that reduce disruption to residents, businesses, and traffic.
Get in touch
Allan Jones +64 21 845 810 allanj@www.kumanu.co.nz
We are specialists in the supply, distribution, and management of drinking water, ensuring full compliance with New Zealand standards and safeguarding public health and safety. Our team delivers end-to-end water infrastructure solutions, from reservoirs, storage tanks, and detention dams to extensive mains and pumping stations, all maintained to the highest standards. Our services include leak detection and repairs, water sampling and analysis, backflow and PRV maintenance, CCTV inspections, excavation and potholing, and 24/7 reactive response to water issues.
Kūmānu designs, builds, maintains, and renew stormwater systems using innovative, environmentally sensitive solutions that enhance waterways and community spaces. Drawing on the expertise of ecologists, landscape architects, horticulturalists, and stormwater specialists, we safely and efficiently manage storm and floodwaters while creating amenity assets and in-stream habitats. Our services include stormwater network construction and repair, wetland and vegetation integration, fish passage management, sediment control, native planting, ongoing asset maintenance, and full project management — including contractor liaison and stakeholder communication, to deliver functional, sustainable solutions for generations.
