Water and Wastewater: Page 10 of 12

ISO 37120: A yardstick for measuring city performance

In 2014, the International Organization for Standards announced an ISO standard that applies strictly to city performance. The document -- known as ISO 37120:2014 -- establishes a set of open data indicators to measure the delivery of city services and quality of life. It defines common methodologies that cities can use to measure their performance in areas such as energy, environment, finance, emergency response, governance, health, recreation, safety, solid waste, telecommunications, transportation, urban planning, wastewater, water, sanitation and more.

In the table at right we have indicated how the standard related to Water and Sanitation and the one on Wasterwater correspond with the Council’s Water and Wastewater targets identified on the next page.

The ISO smart city wastewater standard attempts to capture all the risk to the water supply with five core indicators designed to measure the availability of wastewater treatment, the number of people who have access to it and the quality of the treatment.

Water and Sanitation Indicators

Optimal instrumentation across the watershed

Citywide, multi-service communications

Create water data management policy

Achieve operational optimization

Achieve asset optimization

Automate fault and leak management

Full situational awareness across the watershed

Pursue predictive analysis

Core

21.1 Percentage of city population with potable water supply service

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21.2 Percentage of city population with sustainable access to an improved water source

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21.3 Percentage of population with access to improved sanitation

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21.4 Total domestic water consumption per capita (liters/day)

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Supporting

21.5 Total water consumption per capita (liters/day)

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21.6 Average annual hours of water service interruption per household

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21.7 Percentage of water loss (unaccounted for water)

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Wastewater Indicators

Core

20.1 Percentage of city population served by wastewater collection

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20.2 Percentage of the city’s wastewater that has received no treatment

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20.3 Percentage of the city’s wastewater receiving primary treatment

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20.4 Percentage of the city’s wastewater receiving secondary treatment

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20.5 Percentage of the city’s wastewater receiving tertiary treatment

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Glossary Terms: