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Advances in Civil Engineering
/
2018
/
Article
/
Tab 1
Research Article
A Parameter Classification System for Nonrevenue Water Management in Water Distribution Networks
Table 1
Components of water balance [
14
,
15
,
29
].
System input volume
Authorized consumption
Billed authorized consumption
Billed metered consumption (including water exported)
Revenue water
Billed nonmetered consumption
Unbilled authorized consumption
Unbilled metered consumption
Nonrevenue water
Unbilled nonmetered consumption
Water losses
Apparent losses
Unauthorized consumption
Metering inaccuracies
Real losses
Leaks in transmission and/or distribution mains
Leaks and overflows at a utility’s storage tanks
Leaks in service connections to customer meters