# Manville Water Supply Corp — water loss as filed

TWDB · PWS TX2270033 · TRAVIS County · filings 2015–2023
https://municorn.us/water-loss/tx/manville-water-supply-corp/

## Summary

Manville Water Supply Corp reported **31.7% non-revenue water** in FY2023, higher than 82% of the 785 Texas systems that filed that year. At the utility's own reported water rates that is **$969,487 a year**, as computed in the filed audit itself. The figure is trending worse across the record.

**The filed balance closes**, to within 0.00% of reported system input.

## Filed history

| Year | Non-revenue water % | System input (MG) | Cost of losses/yr | Balance |
|---|---|---|---|---|
| 2023 | 31.7% | 1,936 | $969,487 | closed |
| 2022 | 26.6% | 1,828 | $828,500 | closed |
| 2021 | 25.1% | 1,485 | $606,948 | closed |
| 2020 | 29.9% | 1,665 | $689,523 | closed |
| 2019 | 15.9% | 1,322 | $270,085 | closed |
| 2018 | 25.7% | 1,432 | $525,451 | closed |
| 2017 | 25.5% | 1,244 | $431,058 | closed |
| 2015 | 17.0% | 1,154 | $274,063 | closed |

`closed` means the filed components sum to the filed input. `failed` means they do not, by the stated residual.
`insufficient` means the check could not run because figures are missing — never to be read as a pass.

## 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 TWDB's
export does — those figures are used directly and no rate of ours enters the calculation.

## Source

Texas Water Development Board — historical water loss audit data. Retrieved 2026-08-09. https://www.twdb.texas.gov/conservation/data/water-loss-dashboard.asp

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

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