# Harris County MUD 257 — water loss as filed

TWDB · PWS TX1012985 · HARRIS County · filings 2015–2020
https://municorn.us/water-loss/tx/harris-county-mud-257/

## Summary

Harris County MUD 257 reported **3.1% non-revenue water** in FY2020, higher than 2% of the 1,775 Texas systems that filed that year. At the utility's own reported water rates that is **$9,394 a year**, as computed in the filed audit itself.

**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 |
|---|---|---|---|---|
| 2020 | 3.1% | 108.5 | $9,394 | closed |
| 2015 | 10.9% | 69 | $15,346 | 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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