California · PWS CA1510019

Shafter

What Shafter 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
14.0%
Computed from filed system input and billed consumption.

2026-09-05-f0dfea5a6026.csvSheet1 AN682agency source

Where this figure comes from

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

  • system input volume 1,524 sheet Sheet1, cell AN682 · converted to million gallons from acre-feet
  • billed authorized consumption 1,310 sheet Sheet1, cell AQ682 · billed metered plus billed unmetered, converted to million gallons from acre-feet

Read from data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), our archived copy of the file as it stood on 2026-09-05. That path is committed to the repository and is not served here. The agency publishes its own current copy at https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv, which may since have been revised.

Annual value of the filed loss
$11,400
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 DH682agency source

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 11,415 sheet Sheet1, cell DH682

Read from data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv (SHA-256 f0dfea5a6026881d), our archived copy of the file as it stood on 2026-09-05. That path is committed to the repository and is not served here. The agency publishes its own current copy at https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv, which may since have been revised.

What the record shows

14.0% non-revenue water in FY2024, higher than 70% of the 545 California systems that filed that year.

14.0% 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 14.0%. 1 filing above 64% are drawn at the right edge.0%10%20%30%40%50%60%This system 14.0%California median 9.2%
This series is flagged for review. The filed loss percentage has moved an average of 5.1 points a year, against a California median of 2.6, including 12% to 2% between FY2017 and FY2018. The flag is that comparison and nothing more: mean absolute change per year, above the seventy-fifth percentile for this state.

It does not establish what moved. A meter replacement program, a main break, a change of billing system, a corrected prior-year filing and an ordinary reporting error all produce a series that looks like this, and a filed water loss audit does not say which happened. What the flag does say is that the years disagree with each other by more than most of the state's do, so a single year of this series is a weak basis for a decision without the records behind it.

What it charges

No bill is published for this system. Our computation from this system's filed rate structure and the Board's own undocumented charge field for the same volume disagree, and the field carries no definition to settle which is right.

It did answer the Board's customer-charge questions for reporting year 2025; what is missing is what a comparable figure needs.

Source: California State Water Resources Control Board, electronic Annual Report 2025, section 8a, filed under Health and Safety Code section 116530. How every California bill on this site compares.

Compliance record

20 violations on EPA's record for this system as of 2026Q2, of which 17 are health-based. 20 resolved, and 0 still open.

Nothing on the record is open as of 2026Q2.

Counted as distinct violations, not as rows: EPA's export carries one row per enforcement action taken against a violation, so a row count would multiply this system's record several times over. A violation here is a breach of a reporting, monitoring or contaminant-level rule as reported to EPA — it is not a measurement of the water, and this site has none.

Source: US EPA, Safe Drinking Water Information System, via the ECHO national download, 2026Q2. How we hold it.

Who filed this audit

Shafter 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 · 1,524 MG system input
Billed 1,310 MG Unbilled authorized 3.27 MG Apparent loss 12.4 MG Real loss 198.4 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 1,524 MG sheet Sheet1, cell AN682 · converted to million gallons from acre-feet
  • Billed authorized 1,310 MG sheet Sheet1, cell AQ682 · billed metered plus billed unmetered, converted to million gallons from acre-feet
  • Unbilled authorized 3.27 MG sheet Sheet1, cell AW682 · unbilled metered plus unbilled unmetered, converted to million gallons from acre-feet
  • Apparent loss 12.4 MG sheet Sheet1, cell CC682 · converted to million gallons from acre-feet
  • Real loss 198.4 MG sheet Sheet1, cell CE682 · 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 14.0% 1,524 $11,400
2023 4.6% 1,431 $10,900
2022 1.4% 1,636 $12,300
2021 10.2% 1,643 $10,200
2020 2.3% 1,637 $10,700
2019 3.3% 1,606 $9,160
2018 2.4% 1,615 $8,280
2017 12.2% 1,593 $6,550
2016 12.2% 1,465 $4,460

Balance closure is inapplicable on every filed year above, so the column that repeated it is not shown. DWR derives water losses from system input minus authorized consumption, so this decomposition holds by construction. This is neither a pass nor a disclosure gap.

Comparable systems

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

SystemBasis for comparisonNRW
Healdsburg3,300–10,000 connections 5.5% FY2024
Red Bluff3,300–10,000 connections 9.4% FY2024
Crestline Village Water District3,300–10,000 connections 18.9% FY2023
Tuolumne Utilites District - Upper Basin3,300–10,000 connections 19.8% FY2024
Ukiah3,300–10,000 connections 11.4% FY2024
Gswc - South San Gabriel3,300–10,000 connections 12.7% FY2024
Tuolumne Utilites District - Sonora3,300–10,000 connections 19.8% FY2024
Ripon3,300–10,000 connections 12.6% FY2025

Where is it going?

This page values the loss at roughly $11,400 a year. It cannot say which accounts, which zones, or which meters, and it cannot say how much of that value is collectable. Answering either 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 Shafter

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 looks wrong, tell us: the error may be in the filing, in our reading of it, or in something the export does not show. Send a correction. We will check it against the source, correct the page where it is wrong, and say what changed.

Cite as

Municorn.us, “Shafter — water loss as filed”, Municorn water loss index, https://municorn.us/water-loss/ca/shafter/ (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.