San Francisco Public Utilities Commission
What San Francisco Public Utilities Commission filed with DWR about the water it produced and the water it billed for, 2017–2025 — and what the filing does and does not let anyone verify.
- Non-revenue water, FY2025
- 13.1% Computed from filed system input and billed consumption.
- system input volume 21,130 sheet Sheet1, cell AN3537 · converted to million gallons from acre-feet
- billed authorized consumption 18,355 sheet Sheet1, cell AQ3537 · billed metered plus billed unmetered, converted to million gallons from acre-feet
- Recoverable annually
- $15.7M Apparent loss is valued at this utility's own reported retail price of water. Real loss is NOT included — DWR publishes a variable production cost whose unit it does not declare, so no dollar figure is put on the leaked water. The real recoverable total is higher than this by an amount this filing does not let anyone state.
- cost of apparent losses, as filed 15,660,040 sheet Sheet1, cell DH3537
- Balance check
- inapplicable DWR derives water losses from system input minus authorized consumption, so this decomposition holds by construction.
2026-09-05-f0dfea5a6026.csvSheet1 AN3537
Where this figure comes from
(system input − billed authorized) ÷ system input × 100
From data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), retrieved 2026-09-05 from the published source.
2026-09-05-f0dfea5a6026.csvSheet1 DH3537
Where this figure comes from
cost of apparent losses + cost of real losses, both as computed in the filed audit
From data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), retrieved 2026-09-05 from the published source.
What the record shows
13.1% non-revenue water in FY2025, higher than 78% of the 141 California systems that filed that year.
- The figure is getting worse across the record.
Compliance record
EPA's Safe Drinking Water Information System carries no violation for this system in the 2026Q2 download.
That is a statement about the record. SDWIS is a state-to-EPA reporting pipeline and its completeness varies by primacy agency and by quarter, so an empty record is not the same as a system that has never been in violation.
Who filed this audit
San Francisco Public Utilities Commission filed 2 separate audits for FY2025, one for each public water system it operates, and this page is one of them. California keys its water loss export on the filing organization and not on the system, so a count of California audits is not a count of independent utilities. San Francisco Public Utilities Commission made one set of decisions and filed it 2 times. Read any statewide figure with that in mind, including the ones on this site.
Every figure on this page is read from DWR's published export as this site holds it: a 184-column extract of DWR's 190-column file. Six columns naming individuals, including the contact and the third-party validator, are removed before the bytes are committed, so the click path behind each figure lands on the extract and not on DWR's original. The column letters differ from DWR's for that reason.
DWR derives water losses from system input minus authorized consumption, so these parts sum to the whole on every filing. What a filing can get wrong is which of these numbers were measured.
Where these volumes come from
- System input 21,130 MG sheet Sheet1, cell AN3537 · converted to million gallons from acre-feet
- Billed authorized 18,355 MG sheet Sheet1, cell AQ3537 · billed metered plus billed unmetered, converted to million gallons from acre-feet
- Unbilled authorized 160.2 MG sheet Sheet1, cell AW3537 · unbilled metered plus unbilled unmetered, converted to million gallons from acre-feet
- Apparent loss 435.6 MG sheet Sheet1, cell CC3537 · converted to million gallons from acre-feet
- Real loss 2,179 MG sheet Sheet1, cell CE3537 · converted to million gallons from acre-feet
From data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), retrieved 2026-09-05 from the published source.
| Year | NRW | Input (MG) | Recoverable |
|---|---|---|---|
| 2025 | 13.1% | 21,130 | $15.7M |
| 2024 | 14.7% | 20,895 | $13.7M |
| 2023 | 13.1% | 20,588 | $14.6M |
| 2022 | 10.8% | 20,327 | $14.5M |
| 2021 | 11.6% | 20,584 | $11.7M |
| 2020 | 12.8% | 23,189 | $12.3M |
| 2019 | 11.9% | 23,249 | $12.0M |
| 2018 | 10.9% | 23,466 | $11.6M |
| 2017 | 9.5% | 22,445 | $12.5M |
Comparable systems
The same size band — over 50,000 connections.
| System | Basis for comparison | NRW |
|---|---|---|
| Eastern Municipal Water District | over 50,000 connections | 7.3% FY2025 |
| Sacramento Department Of | over 50,000 connections | 4.8% FY2024 |
| Fresno | over 50,000 connections | 8.6% FY2024 |
| Irvine Ranch Water District | over 50,000 connections | 6.1% FY2025 |
| San Jose Water Company | over 50,000 connections | 7.7% FY2024 |
| Coachella Valley Water District (cove) | over 50,000 connections | 9.2% FY2025 |
| Long Beach | over 50,000 connections | 1.6% FY2025 |
| Alameda County Water District | over 50,000 connections | 5.3% FY2024 |
Where is it going?
This page says how much — roughly $15.7M a year. It cannot say which accounts, which zones, or which meters. That takes your billing history, your meter reads, and your production data reconciled against each other.
Our Water Loss Recovery Snapshot is three weeks, one flat fee, and the deliverable is a ranked list of specific accounts and zones with dollars and a confidence on each.
See what the Snapshot delivers Email us about San Francisco Public Utilities CommissionSources and corrections. Every figure above is either filed by the utility or computed from filed figures, and each one says which. If a number here is wrong, it is either wrong in the filing or wrong in our reading of it — tell us which and we will correct the page and say what changed.
- California DWR — urban retail water supplier water loss audits, filed under Water Code section 10608.34. Retrieved 2026-09-05 from data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv. https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv