Common Acronyms
AL
Apparent Losses
ALC
Active Leakage Control
AMI
Advanced Metering Infrastructure
AMR
Automatic Meter Reading
AOI
Area of Interest
AOP
Average Operating Pressure
AV
Air Valve
AZNP
Average Zone Night Pressure
AZP
Average Zone Point
BABE
Burst and Background Estimation
BU
Bottom Up Leakage Assessment
CAL
Correlating Acoustic Loggers
CAPEX
Capital Expenditure
CARL
Current Annual Real Losses
CP
Critical Point
DCF
Discounted Cash Flow
DMA
District Metered Area
DPA
Discrete Pressure Area
ELAL
Economic Level of Apparent Losses
ELL
Economic Level of Leakage
EM
Electromagnetic Meter
EOS
Edge of Street
ESPB
Equivalent Service Pipe Burst
FAVAD
Fixed and Variable Area Discharge
FH
Fire Hydrant
GIS
Geographical Information System
GPR
Ground Penetrating Radar
HDF
Hour to Day Factor
ICF
Infrastructure Condition Factor
IHM
Individual Household Monitor
ILI
Infrastructure Leakage Index
IWS
Intermittent Water Supply
KPIs
Key Performance Indicators
LCA
Leakage Control Area
LDNC
Legitimate Domestic Night Consumption
LMS
Leakage Management System
LNC
Leak Noise Correlator
or LNC
Legitimate Night Consumption
LNHHNC
Legitimate Non-household Night Consumption
MABL
Minimum Achievable Night Flow
MCR
Marginal Cost of Revenue
MCW
Marginal Cost of Water
MF
Minimum Flow
MINHIST
Minimum Historic Night Flow
MNF
Minimum Night Flow
MUR
Meter Under-Registration
MVW
Marginal Value of Water
NDF
Night Day Factor
NPV
Net Present Value
NRR
Natural Rate of Rise of Leakage
NRW
Non-Revenue Water
OPEX
Operational Expenditure
PCC
Per Capita Consumption
PHC
Per Household Consumption
PIM
Pipeline Insertion Method
PLC
Programmable Logic Controller
PM
Pressure Management
PMO
Project Management Office
PMA
Pressure Managed Area
PMI
Pressure Management Index
PRV
Pressure Reducing Valve
PSV
Pressure Sustaining Valve
PZT
Pressure Zero Test
RL
Real Losses
SAM
Small Area Monitor
SR
Service Reservoir
ST
Supply Time
SV
Sluice Valve
TD
Top Down Leakage Assessment
TIFM
Total Integrated Flow Method
UARL
Unavoidable Annual Real Losses
UBL
Unavoidable Background Leakage
UFW
Unaccounted for Water
WMS
Work Management System
WO
Wash Out
WRZ
Water Resource Zone
WSZ
Water Supply Zone