California · PWS CA4110018

Millbrae

What Millbrae filed with DWR about the water it produced and the water it billed for, 2016–2024 — and what the filing does and does not let anyone verify.

Non-revenue water, FY2024
11.0%
Computed from filed system input and billed consumption.

2026-09-05-f0dfea5a6026.csvSheet1 AN3837

Where this figure comes from

(system input − billed authorized) ÷ system input × 100

  • system input volume 666.7 sheet Sheet1, cell AN3837 · converted to million gallons from acre-feet
  • billed authorized consumption 593.7 sheet Sheet1, cell AQ3837 · billed metered plus billed unmetered, 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.

Recoverable annually
$319,000
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.

2026-09-05-f0dfea5a6026.csvSheet1 DH3837

Where this figure comes from

cost of apparent losses + cost of real losses, both as computed in the filed audit

  • cost of apparent losses, as filed 318,835 sheet Sheet1, cell DH3837

From data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), retrieved 2026-09-05 from the published source.

Balance check
inapplicable
DWR derives water losses from system input minus authorized consumption, so this decomposition holds by construction.

What the record shows

11.0% non-revenue water in FY2024, higher than 57% of the 545 California systems that filed that year.

11.0% non-revenue water in FY2024, against 545 California filings for the same yearA strip of 545 filings on a 0 to 64% axis. The median is 9.2%. This system is 11.0%. 1 filing above 64% are drawn at the right edge.0%10%20%30%40%50%60%This system 11.0%California median 9.2%

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

Millbrae City Of filed this audit for FY2024 and operates no other system in the export that year. California keys its export on the filing organization and not on the system, so the two coincide here rather than by definition.

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.

Water balance, FY2024 · 666.7 MG system input
Billed 593.7 MG Unbilled authorized 1.54 MG Apparent loss 13.9 MG Real loss 57.6 MG

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 666.7 MG sheet Sheet1, cell AN3837 · converted to million gallons from acre-feet
  • Billed authorized 593.7 MG sheet Sheet1, cell AQ3837 · billed metered plus billed unmetered, converted to million gallons from acre-feet
  • Unbilled authorized 1.54 MG sheet Sheet1, cell AW3837 · unbilled metered plus unbilled unmetered, converted to million gallons from acre-feet
  • Apparent loss 13.9 MG sheet Sheet1, cell CC3837 · converted to million gallons from acre-feet
  • Real loss 57.6 MG sheet Sheet1, cell CE3837 · 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.

Filed history, 2016–2024
Year NRW Input (MG) Recoverable
2024 11.0% 666.7 $319,000
2023 11.9% 639 $204,000
2022 11.2% 647.7 $195,000
2021 10.4% 642.9 $218,000
2020 7.4% 672.2 $141,000
2019 7.5% 691.4 $214,000
2018 12.2% 736.3 $144,000
2017 10.0% 721.9 $154,000
2016 11.8% 694 $135,000

Comparable systems

The same size band — 3,300–10,000 connections.

SystemBasis for comparisonNRW
Dinuba3,300–10,000 connections 11.1% FY2024
Bella Vista Water District3,300–10,000 connections 10.4% FY2023
Riverside Highland Water Company3,300–10,000 connections 14.2% FY2024
Cws Haw Hawthorne3,300–10,000 connections 6.4% FY2024
Arroyo Grande3,300–10,000 connections 6.4% FY2024
McKinleyville Community Services District3,300–10,000 connections 19.5% FY2024
San Lorenzo Valley Water District3,300–10,000 connections 24.6% FY2025
Cws Sel Selma3,300–10,000 connections 6.7% FY2024

Where is it going?

This page says how much — roughly $319,000 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 Millbrae

Sources 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.

Cite as

Municorn.us, “Millbrae — water loss as filed”, Municorn water loss index, https://municorn.us/water-loss/ca/millbrae/ (source filings retrieved 2026-09-05).

CC BY 4.0 — reuse and redistribution are permitted with attribution to Municorn.us and a link to this page. Terms, and the one caveat that must travel with these figures.

"Water loss" is at least three different quantities depending on the jurisdiction, and nothing here supports a comparison between states.