# Acton Water District — water loss as filed

MassDEP · PWS 2002000 · filings 2019–2025
https://municorn.us/water-loss/ma/acton-water-district/

> **Cite as:** Municorn.us, "Acton Water District — water loss as filed", Municorn water loss index, https://municorn.us/water-loss/ma/acton-water-district/ (source filings retrieved 2026-08-11).
> **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

Acton Water District reported **11.0% unaccounted-for water** in FY2024, above the Massachusetts standard of 10% and higher than 45% of the 278 systems that filed that year. It has been over the standard in 2 of its 6 reported years. The figure is trending worse across the record. Its reported series is stable (2 points of movement a year, state median 3.8).

## Filed history

| Year | Unaccounted-for water % | Residential gal/capita/day |
|---|---|---|
| 2025 |  | 47.3 |
| 2024 | **11** | 42 |
| 2023 | **12** | 46 |
| 2022 | 7 | 52 |
| 2021 | 4 | 52 |
| 2020 | 4 | 52.5 |
| 2019 | 5 |  |

Bold is above the Massachusetts standard — 10% unaccounted-for water, 65 gallons per
capita per day. The two series end in different years — MassDEP publishes residential use a year ahead of unaccounted-for water.

## Source

MassDEP — DEP-approved performance standards for Massachusetts public water suppliers. Retrieved 2026-08-11. https://www.mass.gov/doc/rgpcd-and-uaw-spreadsheet/download

The FY2024 loss figure: unaccounted-for water, as accepted by MassDEP at ` RGPCD UAW!O60` — in `data/archive/massdep/2026-08-11-7ed15002a7ec.xlsx` (sha256 7ed15002a7ecc43d, retrieved 2026-08-11, https://www.mass.gov/doc/rgpcd-and-uaw-spreadsheet/download), read by `src/scrape/ma.ts` at f29747387599.

MassDEP publishes these as percentages rather than volumes, so no dollar figure is derivable from this source. The volumes are in this system's own Annual Statistical Report.

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/ma/acton-water-district/ · CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ · source filings retrieved 2026-08-11_

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## Compliance record

Violations on EPA's record as of 2026Q2: **71** (20 health-based).
Resolved: 45. Archived: 26. **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.