Massachusetts · PWS 4350000

Wrentham DPW

What Wrentham DPW filed with MassDEP about the water it produced and the water it billed for, 2019–2025 — and what the filing does and does not let anyone verify.

Unaccounted-for water, FY2024
24.0%
As accepted by MassDEP, which publishes this percentage and not the volumes behind it.

2026-08-11-7ed15002a7ec.xlsx RGPCD UAW O289agency source

Where this figure comes from
  • unaccounted-for water, as accepted by MassDEP 24 sheet RGPCD UAW, cell O289

Read from data/archive/massdep/2026-08-11-7ed15002a7ec.xlsx (SHA-256 7ed15002a7ecc43d), our archived copy of the file as it stood on 2026-08-11. That path is committed to the repository and is not served here. The agency publishes its own current copy at https://www.mass.gov/doc/rgpcd-and-uaw-spreadsheet/download, which may since have been revised.

Annual value of the filed loss
Not estimable from what MassDEP publishes. A loss percentage cannot be priced without the volume it is a share of.

What the filing says

Wrentham DPW serves an unreported number of retail connections. Municipal suppliers averaging 100,000 gallons a day or more calculate unaccounted-for water and residential gallons per capita per day in the Annual Statistical Report, and both are Water Management Act performance standards. MassDEP publishes those two percentages but not the volumes behind them, which is why this page carries no dollar figure. The volumes are in this system's own ASR filing.

What the record shows

24.0% unaccounted-for water in FY2024, higher than 85% of the 278 Massachusetts systems that filed that year.

24.0% unaccounted-for water in FY2024, against 278 Massachusetts filings for the same yearA strip of 278 filings on a 0 to 64% axis. The median is 12.0%. This system is 24.0%. 1 filing above 64% are drawn at the right edge.0%10%20%30%40%50%60%This system 24.0%Massachusetts median 12.0%
This series is flagged for review. The filed loss percentage has moved an average of 7.8 points a year, against a Massachusetts median of 3.8, including 20% to 3% between FY2020 and FY2021. The flag is that comparison and nothing more: mean absolute change per year, above the seventy-fifth percentile for this state.

It does not establish what moved. A meter replacement program, a main break, a change of billing system, a corrected prior-year filing and an ordinary reporting error all produce a series that looks like this, and a filed water loss audit does not say which happened. What the flag does say is that the years disagree with each other by more than most of the state's do, so a single year of this series is a weak basis for a decision without the records behind it.

Compliance record

90 violations on EPA's record for this system as of 2026Q2, of which 27 are health-based. 33 resolved, 57 archived, and 0 still open.

Nothing on the record is open as of 2026Q2.

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.

Filed history, 2019–2025 · bold is above the state standard
YearUnaccounted-for waterResidential gal/capita/day
2025 58
2024 24.0% 64
2023 13.0% 58.7
2022 8.0% 70
2021 3.0% 56
2020 20.0% 62
2019 21.0%

Standards are 10% unaccounted-for water and 65 gallons per capita per day. A blank is a year MassDEP could not calculate a value — by its own note, a system not fully metered, a master meter malfunction, seasonal population, or no report filed.

Other Massachusetts systems

MassDEP publishes no county or connection count for these systems, so they cannot be ranked against this one. These are other filers, not comparables.

Where is it going?

This page values the loss. It cannot say which accounts, which zones, or which meters, and it cannot say how much of that value is collectable. Answering either 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 Wrentham DPW

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 looks wrong, tell us: the error may be in the filing, in our reading of it, or in something the export does not show. Send a correction. We will check it against the source, correct the page where it is wrong, and say what changed.

Cite as

Municorn.us, “Wrentham DPW — water loss as filed”, Municorn water loss index, https://municorn.us/water-loss/ma/wrentham-dpw/ (source filings retrieved 2026-08-11).

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.