Supporting better decision-making for water-sensitive urban design

Welcome to the Green Infrastructure Tools resource hub. This page provides access to guidance materials, manuals, FAQs, and training resources supporting the use of Auckland Council Healthy Waters’ decision-support tools, including the Device Selection Tool (DST) and the WaterFootprint C3 Calculator.

These tools have been developed to support practitioners, planners, engineers, and decision-makers in evaluating green infrastructure and nature-based solutions through a structured, evidence-based approach. By integrating technical performance with cost, carbon, and wider environmental considerations, the tools help users make informed, transparent decisions across the planning and design process.

Whether you are a new user looking for step-by-step guidance or an experienced practitioner seeking technical references, you will find supporting resources below.

Device Selection Tool (DST)

 

The Device Selection Tool helps guide users in selecting appropriate stormwater management devices based on site conditions, treatment objectives, and performance criteria.

  • User Manual – Download the full DST user guide, including installation instructions, workflow overview, and detailed explanations of tool logic.
  • Frequently Asked Questions (FAQs) – Common questions, troubleshooting tips, and guidance for typical scenarios.
  • Training Video – Short walkthrough video demonstrating how to use key features and interpret results – coming soon
  • Use the Device Selection Tool – coming soon

WaterFootprint C3 Calculator (Contaminant, Cost & Carbon)

The WaterFootprint C3 Calculator provides integrated evaluation of stormwater infrastructure options by assessing contaminant reduction, life-cycle cost, and carbon performance in a single framework.

  • User Manual – Detailed guidance on inputs, assumptions, calculation methods, and interpretation of outputs.
  • Technical Documentation – Supporting methodology, data sources, and modelling assumptions.
  • Frequently Asked Questions (FAQs) – Answers to common queries about using the calculator and understanding results.
  • Training Video – Step-by-step walkthrough video demonstrating how to use key features and interpret results – coming soon
  • Use the C3 Calculator – coming soon

Need Support?

If you have questions, feedback, or would like training or workshop support, please get in touch via the Contact page.