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Reliable water supply is a fundamental requirement for any development - and delivering it in a way that meets Wellington Water's standards, integrates with the existing network, and provides adequate pressure and flow for both domestic use and firefighting is a technical undertaking that requires careful design.
Water supply reticulation is the network of pipes, valves, fire hydrants, and connections that distributes potable water from the public main to individual properties. Network design involves selecting pipe sizes and materials, positioning valves and fire hydrants, verifying adequate pressure and flow at all connection points under peak demand conditions, and integrating with Wellington Water's existing network in a way that meets their technical standards.
Undersized pipes, inadequate pressure, or insufficient fire flow are grounds for Wellington Water to refuse to accept a reticulation network into the public system - blocking subdivision s224c certification and preventing title issuing. A network designed without hydraulic analysis is a network designed on assumptions. Those assumptions need to hold under peak domestic demand and firefighting conditions simultaneously - which can only be demonstrated through modelling.
We carry out hydraulic network analysis using water supply modelling software, verifying pressures and flows at all demand nodes under peak domestic and firefighting scenarios. We design to Wellington Water's reticulation standards - pipe materials, minimum cover, valve spacing, hydrant placement, and meter configurations - and prepare plan and long-section drawings for engineering approval. Where connections to existing mains require pressure management or extension of the public network, we coordinate with Wellington Water's development team and prepare the documentation needed for their agreement. The result is a network that will be adopted and that performs reliably for the properties it serves.
Orogen designs water supply networks for residential subdivisions, mixed-use developments, and infrastructure upgrades. We carry out hydraulic network analysis, select pump systems, and produce the design documentation Wellington Water and councils need to approve new connections and vest infrastructure into the public network.
