California · PWS CA3610008

Big Bear City Csd

What Big Bear City Csd 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
18.9%
Computed from filed system input and billed consumption.

2026-09-05-f0dfea5a6026.csvSheet1 AN3014

Where this figure comes from

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

  • system input volume 324.9 sheet Sheet1, cell AN3014 · converted to million gallons from acre-feet
  • billed authorized consumption 263.6 sheet Sheet1, cell AQ3014 · 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
$13,100
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 DH3014

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 13,091 sheet Sheet1, cell DH3014

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

18.9% non-revenue water in FY2025, higher than 88% of the 141 California systems that filed that year.

18.9% non-revenue water in FY2025, against 141 California filings for the same yearA strip of 141 filings on a 0 to 64% axis. The median is 6.9%. This system is 18.9%. 1 filing above 64% are drawn at the right edge.0%10%20%30%40%50%60%This system 18.9%California median 6.9%
The reported figure is not stable enough to act on. It has moved an average of 4.4 points a year, against a California median of 2.6, including 19% to 11% between FY2020 and FY2021. A distribution system's real losses do not change that fast — pipe does not deteriorate or repair itself in a single year. A series that moves like this is describing how the water is being measured and recorded, not how much of it is being lost, and which year is closer to true cannot be settled from this filing.

What it charges

No bill is published for this system. This system does not bill monthly, and a bill is per billing period — a bi-monthly fixed charge is not half a monthly one, and nothing filed says how its tiers apply to a month.

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

1 violation on EPA's record for this system as of 2026Q2, of which 1 is health-based. 0 resolved, 1 archived, 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

Big Bear Community Services District filed this audit for FY2025 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, FY2025 · 324.9 MG system input
Billed 263.6 MG Unbilled authorized 16.8 MG Apparent loss 4.14 MG Real loss 40.4 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 324.9 MG sheet Sheet1, cell AN3014 · converted to million gallons from acre-feet
  • Billed authorized 263.6 MG sheet Sheet1, cell AQ3014 · billed metered plus billed unmetered, converted to million gallons from acre-feet
  • Unbilled authorized 16.8 MG sheet Sheet1, cell AW3014 · unbilled metered plus unbilled unmetered, converted to million gallons from acre-feet
  • Apparent loss 4.14 MG sheet Sheet1, cell CC3014 · converted to million gallons from acre-feet
  • Real loss 40.4 MG sheet Sheet1, cell CE3014 · 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, 2017–2025
Year NRW Input (MG) Recoverable
2025 18.9% 324.9 $13,100
2024 17.0% 309.4 $12,200
2023 11.2% 284.7 $11,500
2022 8.1% 303.6 $13,300
2021 10.9% 349.1 $13,800
2020 18.7% 325.3 $12,000
2019 13.4% 310.1 $11,600
2018 15.5% 320 $11,300
2017 21.6% 322.1 $10,000

Comparable systems

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

SystemBasis for comparisonNRW
South Pasadena3,300–10,000 connections 7.8% FY2016
Estero Municipal Improvement District3,300–10,000 connections 7.3% FY2024
Discovery Bay Csd3,300–10,000 connections 13.0% FY2025
California - American Water Company - Los Angeles District - Baldwin Hills3,300–10,000 connections 8.8% FY2024
Arcata3,300–10,000 connections 36.2% FY2024
Sunny Slope Water Company3,300–10,000 connections 14.2% FY2023
Reedley3,300–10,000 connections 38.6% FY2024
Loma Linda3,300–10,000 connections 9.6% FY2025

Where is it going?

This page says how much — roughly $13,100 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 Big Bear City Csd

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, “Big Bear City Csd — water loss as filed”, Municorn water loss index, https://municorn.us/water-loss/ca/big-bear-city-csd/ (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.