Illustrative: rain routed down a catchment to the flood plain, generated, with the intensity of a scenario rising and falling

Risk Academy, led by the Nexus Consortium · Infrastructure, Energy and Industry

Water and wastewater systems

Water utilities deliver a service that only becomes visible when it fails: a pressure drop, a contamination event, a sewer overflow after a storm.

Map water and wastewater systems on a real place

01Model

The model, step by step

The model

From an ageing main to a renewal rate: bursts, real losses and the pipes replaced each year

DataModelGateDecision

6 steps
Years to replace the whole network at this rate
125
Bursts this year on the network
600
Net growth of the burst rate (% per year)
1.30%
Burst rate in year 20 (per 100 km per year)
25.9
/

The model From an ageing main to a renewal rate: bursts, real losses and the pipes replaced each year

02Scope

What the discipline covers

The subtopics its courses and labs teach.

Water and wastewater systems: 0 primary courses open, 0 in preparation and 0 also taught here, across 9 subtopics. Courses: none yet.
Water and wastewater systems at a glance
  • Open, 0
  • In preparation, 0
  • Subtopics, 9
Course codes from the curriculum; study levels L1 to L4.
Courses
In development
Levels
In development
Labs
In development
  • Water supply, treatment and distribution networks
  • Wastewater collection, treatment and reuse
  • Hydraulic modelling of networks
  • Asset condition, leakage and renewal
  • Water safety plans
  • Drought, flood and contamination risk to utilities
  • Dependence on power, chemicals and telecommunications
  • Cyber and physical security of water systems
  • Combined sewer overflows and stormwater
03The discipline

The field and its scope

For utility engineers and managers, public health officers, regulators and resilience planners who need to assess the hydraulics, asset condition, dependencies and hazard exposure of drinking water and wastewater systems.

04Measures

Quantities and units

05Methods

Methods and their limits

Each method is listed with what it assumes and where it fails.

06Debates

What the field debates

07Bodies and data

Bodies that set practice, and the data they publish

Bodies and standards are named so learners can find and apply their published work; the Academy teaches their use and links to the publisher, and no affiliation is implied.

08Simulator

Run the discipline's simulator

Water and wastewater systems's own model runs in the scene at the top of this page: set its parameters there and play the steps. The separate chart simulator is left off this page so that it stays within its size budget.

09Maps

Build a twin of any place

Search any place or open the world; the layers and generators follow water and wastewater systems on the planet map, the globe and in 3D.

Wellington and its harbour: a flat plan of the faculty twin. Terrain 0 to 523 m; 83,815 buildings in the box; 5,085 footprints in the core, 2,796 with an estimated height; Roads 176 km; Rail 99 km; 57 substations; 4 port; 2 airport; 5 hospitals; 8 railway stations; 4 water works; 2 power plants, 202 MW. Contours every 100 metres from the elevation grid; buildings as counts per cell; roads and rail by class; lifeline assets as marks; power plants as marks.
Wellington and its harbour, New Zealand. Flat plan of the same data. The 3D twin opens on devices with WebGL once its data and library have been checked; the numbers are the same either way.
  • Terrain 0 to 523 m
  • 83,815 buildings in the box
  • 5,085 footprints in the core, 2,796 with an estimated height
  • Roads 176 km
  • Rail 99 km
  • 57 substations
  • 4 port
  • 2 airport
  • 5 hospitals
  • 8 railway stations
  • 4 water works
  • 2 power plants, 202 MW
Credits and dates per layer are listed under the stage. Relief in the twin is exaggerated ×1.5 for legibility.

Drag to move, right drag or Shift with a drag to turn and tilt, Ctrl with the wheel to zoom. Keyboard: arrows move, Shift with arrows turn and tilt, + and - zoom, 0 resets, V steps through the views, Escape clears.

Flat plan of the same data. The 3D twin opens on devices with WebGL once its data and library have been checked; the numbers are the same either way.

The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).

10Research hub

Research hub: papers, preprints and datasets

Open scholarly sources searched with the subject terms of Water and wastewater systems.

Search termsWater and wastewater systems; Water supply, treatment and distribution networks; Wastewater collection, treatment and reuse; Hydraulic modelling of networks; Asset condition, leakage and renewal; Water safety plansDerived from the Risk Academy page on Water and wastewater systems.

  • OpenAlexlisted for reference; not queried
  • Crossreflisted for reference; not queried
  • DataCitelisted for reference; not queried
  • Zenodolisted for reference; not queried
  • arXivlisted for reference; not queried
  • Europe PMClisted for reference; not queried
  • OpenAIRE Graphlisted for reference; not queried

No source is enabled for live display on this site yet: the sources are listed for reference and none is queried. Once the publisher of record enables a source after its terms are reviewed, recent works are listed here. Metadata and links only: title, authors, venue, year, type, open-access status and licence as each source records them; works are listed for orientation, not reviewed or endorsed.

11Hub

Research and tools

Research and preprints as they are published, by discipline, with the faculty's other tools.

The hub lists the newest research and preprints for Water and wastewater systems, each with its source and date. Open the research hub

12Courses

Courses in this discipline

Courses for this discipline are in development; until they open, study it through the connected courses and open lessons below.

The course catalogue lists every open course of the Academy.

13Technology in this area

How technology helps and what risk it brings

AspectIn this area
Technology that helpsDigital twins, sensors and robotics for inspection.
Risk technology createsCascading cyber-physical failure and vendor lock-in.
  • RAT-263 Digital Twins for Risk: Design, Validation and Limits In development
  • RAT-261 OT/ICS and Critical Infrastructure Cyber Resilience In development
  • RAS-407 Critical Infrastructure Interdependency and Resilience Engineering In development
14Achievements

Achievements in this discipline

  1. Course achievements

    One for each course with this as its primary discipline, earned when you pass the course's assessed activities.

An achievement is a record of the learning completed and assessed here. How recognition works.

15Where this is practised

Where the subject is practised

A field platform page on this subject is in development.

16Practised in

The two Nexus Foundry systems where it is practised

  • Nexus FoundryNET systemWater networks are utility networks with continuity dutiesContinuity room, Topology room
  • GRIx systemWater service disruption cascades into health and economyCascades room

Nexus Foundry system pages describe what each system and its rooms are designed to do; the courses teach the methods these systems apply.

17Across the ecosystem

Across the ecosystem

19References

Core references and where to begin

Start with Bartram, then Lambert, then Kleiner.

NRNexus Reports gateway · GW-ACADEMY

Contribute to Nexus Reports from this page.

Nexus Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

Risk Academy
Water and wastewater systems

Prepare with a related course

Open courses in connected disciplines teach the methods this discipline will build on.

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