Page 100 - U4SSC KPIs Verification Manual - A guide for verifiers

Dimension Environment
Sub-Dimension Environment

Category Water and Sanitation
KPI Name Water Consumption
KPI No. EN: EN: WS: 2C Type: Core Type: Sustainable

Definition / Water consumption per capita
Description

Rationale / Consumption of water per person depends on:
Interpretation / • the availability and price of water;
Benchmarking
• the climate; and
• the uses of water (drinking, bathing, washing, and gardening).
In many cities, potable water supply is not constant, and households rely on a
few hours to tap the available water during the day. Water consumption is much
higher in cities of higher income countries.
Typically, people in cities of developed countries use 272 litres per day while
the average in Africa is 53 litres per day. North American cities use, on average,
double the amount of water per person than Western European cities, and seven
times that of African cities.
Water consumption should include all water used within the city.
Water consumption per capita should be in line with the sustainable water
resources available.
A declining trend and lower values are considered positive.
Source (s) NOTE – Urban Indicators Toolkit. Retrieved from
<http:// www .conei .sp .gov .br/ ind/ urbanindicators _urbanobservatory .pdf>

Methodology Calculate as:
Numerator: Total amount of water consumption in cities (ℓ /day).
Denominator: Total number of city inhabitants.
Unit ℓ / day / capita.

Data Sources NOTE – Data can be obtained from water supply utilities.
/ Relevant United Nations (2002): GLOBAL URBAN INDICATORS DATABASE. Retrieved from
Databases
<https:// unhabitat .org/ global -urban -indicators -database>
SDG Reference(s) SDG Indicator 6.4.1: Change in water-use efficiency over time.
Verification Check population is consistent.
Guidance
Check data sources.
NOTE:

Cities with heavy industries will consume larger amounts of water.
DATA VALUES:
Check consumption if greater than 500.

90 U4SSC KPIs Verification Manual-A guide for verifiers