Unlocated water lossUtilities can't find leaks in pipes they never metered
Utilities meter at the treatment works and at the customer's tap, and only coarsely in between: a district meter can say how much went missing across a whole area, not where. So loss is known as a percentage far more often than as a place, the response is scheduled rather than targeted (mains replaced by age, not by evidence), and too many leaks are found only when the road subsides or somebody rings.
Water utilities and municipal engineers · households in intermittent-supply cities · regulators setting loss targets
Why now
A widely cited World Bank estimate, published in 2018, puts the water utilities produce but never bill, through physical leaks and commercial losses, at around 126 billion cubic metres a year, nearly $40 billion in lost value.
Why it matters
The cheapest new water available anywhere is the water already treated, already paid for, and lost before it arrives. Turning a percentage into a location is most of the job, and it is an instrumentation and inference problem rather than a civil engineering one.
From public reporting
Framed from public reporting. Here is what it was drawn from, so the framing can be checked against it:
"Accessible" on a listing might mean a ramp, or one step, or a lift that has been broken for a month, or a toilet being used as a storeroom. The most reliable account usually comes from another disabled person who has actually been there. That knowledge exists in enormous quantity, scattered across forums, group chats and reviews, and the maps and guides that gather it cover only part of it, each in its own terms, so it is rarely there to check before leaving the house.
For whomWheelchair users and people with limited mobility · blind, deaf and neurodivergent travellers and people with hidden disabilities · carers planning a trip · venues that are accessible and cannot prove it
Loss happens at the handovers: field to packer, packer to distributor, distributor to shelf. Every party measures only its own side of each one. So each set of numbers looks defensible while the total is enormous, and the interventions that would work are precisely the ones nobody can see, because they sit between two businesses rather than inside one.
For whomGrowers and packers · distributors and independent retailers · redistribution charities working the same corridors
Caring for an ageing parent means medications, appointments, home visits, bills and forms, shared between siblings in different cities and often different countries. It runs on a group chat, a shared folder and whoever remembers. Things fall through, one person quietly carries most of it, and the professionals involved each see a fragment of a picture nobody holds whole.
For whomAdult children caring for parents · home-care workers · family doctors seeing only their slice
