# Humboldt Community Services District — water loss as filed

DWR · PWS CA1210009 · filings 2016–2024
https://municorn.us/water-loss/ca/humboldt-community-services-district/

> **Cite as:** Municorn.us, "Humboldt Community Services District — water loss as filed", Municorn water loss index, https://municorn.us/water-loss/ca/humboldt-community-services-district/ (source filings retrieved 2026-09-05).
> **Licence:** CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/ — reuse and redistribution are permitted with attribution to Municorn.us and a link to this URL.
> **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.

## Summary

Humboldt Community Services District reported **26.0% non-revenue water** in FY2024, higher than 92% of the 545 California systems that filed that year. At the utility's own reported water rates that is **$676,000 a year**, as computed in the filed audit itself. 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.

**The water balance is not a check here.** DWR derives water losses from system input minus authorized consumption, so this decomposition holds by construction.

## Filed history

| Year | Non-revenue water % | System input (MG) | Cost of losses/yr |
|---|---|---|---|
| 2024 | 26.0% | 605.3 | $676,000 |
| 2023 | 23.8% | 601.5 | $502,000 |
| 2022 | 24.0% | 616 | $444,000 |
| 2021 | 23.0% | 632.3 | $385,000 |
| 2020 | 26.4% | 654 | $327,000 |
| 2019 | 29.2% | 700.4 | $320,000 |
| 2018 | 33.0% | 725.7 | $182,000 |
| 2017 | 28.5% | 698.6 | $139,000 |
| 2016 | 27.2% | 697.1 | $96,500 |

## How the cost figure is built

Apparent loss is water delivered and never billed, so it is valued at the retail rate: revenue, recoverable inside a
budget year without capital work. Real loss is valued at variable production cost, because eliminating a leak saves
treatment and pumping rather than retail price. Where the filed audit carries its own cost of losses — as
DWR's export does — those figures are used directly and no rate of ours enters the
calculation.

## Source

California DWR — urban retail water supplier water loss audits, filed under Water Code section 10608.34. Retrieved 2026-09-05. https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv

The FY2024 loss figure: (system input − billed authorized) ÷ system input × 100, from system input volume at `Sheet1!AN501`; billed authorized consumption at `Sheet1!AQ501` — in `data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv` (sha256 f0dfea5a6026881d, retrieved 2026-09-05, https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv), read by `src/scrape/ca.ts` at eaf9ca89f144.

The annual figure in dollars: cost of apparent losses + cost of real losses, both as computed in the filed audit, from cost of apparent losses, as filed at `Sheet1!DH501` — in `data/archive/ca-dwr-water-loss/2026-09-05-f0dfea5a6026.csv` (sha256 f0dfea5a6026881d, retrieved 2026-09-05, https://data.cnra.ca.gov/dataset/d6cdd89e-49b0-4b1f-86ee-8b7237e5f169/resource/058ac6ca-a8b4-4f28-b6c8-11e48309f3b4/download/ca-retailer-waterlossdata.csv), read by `src/scrape/ca.ts` at eaf9ca89f144.

Volumes are normalized to million gallons on ingest; the export reports them in the unit each filing states.

Figures are as filed unless stated otherwise. If a number here is wrong it is wrong in the filing or wrong in
our reading of it, and both are worth knowing: ammar@municorn.us

_Municorn.us · https://municorn.us/water-loss/ca/humboldt-community-services-district/ · CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ · source filings retrieved 2026-09-05_

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## What it charges

Monthly bill at 6 HCF (4488 gallons): **$63.69**
Monthly bill at 24 HCF (17952 gallons): **$173.49**
Fixed charge: $27.09 · billing monthly · quoted in Hundred Cubic Feet

Computed from the fixed charge and tiers this system filed in section 8a of the 2025 electronic Annual
Report, not read off a rate sheet. Our figure reproduces the Board's own undocumented charge field for this volume to the cent.

This is the reporting year 2025 filing. It is not necessarily the rate in force today.

Where it comes from: the Board's section 8a file for reporting year 2025, https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/documents/ear/2025/eAR2025_Section8.txt, held here as
archive extract sha256 6eba0fd85f1f. That file has no cells — a value is located by the system identifier
and the question abbreviation — so this figure was computed from WRSFCostPerUOM1, WRUOM, WRSFUsageCost1, WRSFMetricUsage1 for system CA1210009.

The twin cites the extract by hash rather than by path because the path is named for the day it was written,
and a date in a corpus twin is a build clock that churns every page claim daily. The page itself carries the
path.

## Compliance record

Violations on EPA's record as of 2026Q2: **5** (5 health-based).
Resolved: 5. Archived: 0. **Still open: 0.**

Nothing on the record is open as of 2026Q2.

Counted as distinct violations rather than as rows: EPA's export carries one row per enforcement action taken
against a violation. A violation is a breach of a reporting, monitoring or contaminant-level rule as reported
to EPA; it is not a measurement of the water.

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