Revenue & Debt
Water Distribution Losses
Non-revenue water from physical leakage and commercial losses against bulk purchases.
Why non-revenue water matters financially
Water purchased in bulk but never billed, lost through physical leakage or commercial under-recording, is a direct financial loss and a service-delivery failure that auditors and oversight bodies increasingly scrutinise. High non-revenue water undermines the cost-recovery model and points to weak infrastructure and metering controls. AuditPro Core reconciles bulk water purchased against water billed to quantify distribution losses and their financial impact.
The Numbers
AuditPro Core renders this view from your tenant's live, tamper-evident records. The figures below are illustrative sample data.
Non-revenue water
37%
▲ 4%
Loss value
R96 m
Physical losses
22%
Commercial losses
15%
Non-revenue water trend
Water balance reconciliation
| Component | Volume (Ml) | Share % |
|---|---|---|
| Bulk purchased | 4200 | 100 |
| Billed metered | 2646 | 63 |
| Physical leakage | 924 | 22 |
| Commercial loss | 630 | 15 |
Figures shown are illustrative sample data for demonstration. AuditPro Core renders these views from your own tenant's live, tamper-evident records.
Non-revenue water defined
Non-revenue water is the difference between water put into the system and water that generates revenue. It splits into physical losses from leaks and commercial losses from metering and billing failures.
Physical versus commercial losses
Physical losses stem from pipe leakage and burst mains; commercial losses arise from meter under-reading, illegal connections and unbilled consumption. The two require different remedies.
Bulk-to-billed reconciliation
Comparing metered bulk purchases against metered billed consumption gives the loss volume. Translating that volume at the bulk cost rate gives the rand value foregone.
Link to sustainability
Every kilolitre lost is paid for but not recovered, so high losses directly widen the tariff gap and pressure the water service's financial viability.
How AuditPro Core Bridges the Gap
- Bulk-to-billed reconciliation: metered purchases are reconciled against billed consumption to quantify the loss volume and value.
- Loss-type split: physical and commercial loss components are distinguished to direct the right remedial action.
- Exception flags: zones or periods with loss ratios above tolerance are highlighted for infrastructure or metering review.
- Audit-ready output: the loss analysis exports with volumes and values traceable to bulk meter and billing source data.
Key Takeaways
- Non-revenue water is bulk water bought but never turned into revenue.
- Separate physical leakage from commercial metering and billing losses.
- Value the loss at the bulk cost rate to show the financial impact.
- High losses widen the tariff gap and threaten water-service viability.
See This on Your Own Data
AuditPro Core renders this dashboard from your tenant's live, tamper-evident records — every figure traceable to source.