District Metered Areas (DMA) in British Columbia
A district metered area divides the distribution network into discrete, metered zones. By monitoring flow into each zone — especially minimum night flow, when legitimate demand is lowest — a utility can detect rising leakage in a zone and direct survey crews precisely where losses are growing, rather than surveying the whole network blindly.
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- Zone boundaries and metering points designed around the network
- Minimum-night-flow analysis to flag leakage trends
- Targeted acoustic survey of the worst-performing zones
- Ongoing monitoring to verify repairs and catch new leaks
- Leakage spotted at the zone level before it surfaces
- Survey effort focused where losses are actually rising
- A continuous, data-driven water-loss program
District Metered Areas (DMA) — FAQ
Minimum night flow is the lowest flow into a zone, typically in the small hours when customer demand is least. Because legitimate use is low then, a high or rising minimum night flow points to leakage in the zone — making it one of the most useful early indicators of where to survey.
Serving BC Municipalities
District Metered Areas (DMA) guidance for water utilities across British Columbia. Explore local water-main context by city:
Other Municipal Services
Pinpoint leaks on buried distribution and transmission mains without excavating the whole street.
Recover treated water lost to leaks before it reaches customers — and target the worst losses first.
Walk the network listening at every valve and hydrant to surface hidden background leakage.
Two sensors on the main, one mathematical fix — leak position to within inches on long runs.
Large-diameter supply mains carry huge volumes — a single leak is a major, hard-to-hear loss.
Right-sizing pressure cuts both leakage volume and the rate of new breaks.
Hydrants and valves are the network's listening posts — and assets worth checking themselves.
Deploy loggers across a zone to listen overnight and report where new leakage appears.
Before a main renewal program, know which segments are actually leaking and failing.
Locate the break, find any related leakage, and document the failure for the record.
Know exactly where the buried main, valves and connections run before any work.
Need district metered areas (dma) for your network?
Leaks.ca is the educational hub for BC water utilities and property owners. Leaks.ca is the educational division — for booking and on-site detection across British Columbia, our service partner Leak.ca handles professional assessments.
Educational hub & service-support division of Leak.ca · Serving all of British Columbia · Since 1999