UNACCOUNTED-FOR WATER STUDY IN DISTRIBUTION
NETWORK OF RASHT WATER& SEWERAGE CO.
by: Ahmad Ghafouri
1- INTRODUCTION
During 1998 and 1999 RASHT WATER & SEWERAGE CO (RWSC)
conducted a study to more accurately define and
understand the magnitude and nature of its
UNACCOUNTED-FOR WATER (UFW) volume for the 1999
calendar year. UFW is generally defined as the
difference between the measured volume of water
received into the system and the measured volume
through deliveries. To determine this exact
difference, the study identified the factors
contributing to the losses and the UFW volumes
associated with each factor. (Download
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