California · PWS CA4410002

San Lorenzo Valley Water District-felton

What San Lorenzo Valley Water District-felton filed with DWR about the water it produced and the water it billed for, 2025–2025 — and what the filing does and does not let anyone verify.

Non-revenue water, FY2025
33.5%
Computed from filed system input and billed consumption.

2026-09-05-f0dfea5a6026.csvSheet1 AN4095

Where this figure comes from

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

  • system input volume 121.3 sheet Sheet1, cell AN4095 · converted to million gallons from acre-feet
  • billed authorized consumption 80.6 sheet Sheet1, cell AQ4095 · 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
$6,220
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 DH4095

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 6,224 sheet Sheet1, cell DH4095

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

33.5% non-revenue water in FY2025, higher than 98% of the 141 California systems that filed that year.

33.5% 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 33.5%. 1 filing above 64% are drawn at the right edge.0%10%20%30%40%50%60%This system 33.5%California median 6.9%

What it charges

$135.12 a month for a household using 6 hundred cubic feet — 4,488 gallons — and $458.18 at 17,952 gallons. Computed from the fixed charge and the tiers this system filed for reporting year 2025, not read off a rate sheet.

The fixed charge is $70.94 a month before any water is used. Billing is monthly, quoted in hundred cubic feet.

Where this figure comes from

fixed charge + each tier's price over the part of 6 HCF that falls in it

  • Fixed charge WRSFCostPerUOM1, system CA4410002
  • Volumetric tiers WRSFUsageCost1, WRSFUsageCost2, WRSFUsageCost3, system CA4410002
  • Tier tops WRSFMetricUsage1, WRSFMetricUsage2, WRSFMetricUsage3, system CA4410002
  • Unit of measure WRUOM, system CA4410002
  • Billing frequency WRFrequency, system CA4410002
  • The Board's own charge field WR6HCFDWCharges, system CA4410002

From data/archive/ca-ear-rates/2026-09-09-6eba0fd85f1f-section8-charges.jsonl, extracted 2026-09-09 from the Board's published section 8a file. That file has no cells: a value is found by the system identifier and the question abbreviation above.

The Board also publishes an undocumented charge field for this volume. Our figure reproduces it to the cent, which is what establishes that the field is a bill at this volume for systems like this one.

This is what the system reported for reporting year 2025. It is not necessarily the rate in force today, and nothing in the filing says whether it has since changed.

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

11 violations on EPA's record for this system as of 2026Q2, of which 5 are health-based. 8 resolved, 1 archived, and 2 still open.

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

San Lorenzo Valley Water District 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 Lorenzo Valley Water District 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.

Water balance, FY2025 · 121.3 MG system input
Billed 80.6 MG Unbilled authorized 0.2 MG Apparent loss 0.4 MG Real loss 40.1 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 121.3 MG sheet Sheet1, cell AN4095 · converted to million gallons from acre-feet
  • Billed authorized 80.6 MG sheet Sheet1, cell AQ4095 · billed metered plus billed unmetered, converted to million gallons from acre-feet
  • Unbilled authorized 0.2 MG sheet Sheet1, cell AW4095 · unbilled metered plus unbilled unmetered, converted to million gallons from acre-feet
  • Apparent loss 0.4 MG sheet Sheet1, cell CC4095 · converted to million gallons from acre-feet
  • Real loss 40.1 MG sheet Sheet1, cell CE4095 · 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, 2025–2025
Year NRW Input (MG) Recoverable
2025 33.5% 121.3 $6,220

Comparable systems

The same size band — 1,000–3,300 connections.

SystemBasis for comparisonNRW
Suburban1,000–3,300 connections 5.1% FY2024
Cws Rdv Lucerne1,000–3,300 connections 32.2% FY2024
Gswc - Calipatria1,000–3,300 connections 6.9% FY2024
Tahoe City Public Utility District1,000–3,300 connections 20.2% FY2024
California - American Water Company - Sacramento District - Arden1,000–3,300 connections 7.0% FY2024
Scv Water - Tesoro1,000–3,300 connections 38.0% FY2024
Gswc - Willowbrook1,000–3,300 connections 4.9% FY2024
Vernon Public1,000–3,300 connections 5.4% FY2025

Where is it going?

This page says how much — roughly $6,220 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 Lorenzo Valley Water District-felton

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, “San Lorenzo Valley Water District-felton — water loss as filed”, Municorn water loss index, https://municorn.us/water-loss/ca/san-lorenzo-valley-water-district-felton/ (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.