Darien Water Works And
What Darien Water Works And filed with PSC about the water it produced and the water it billed for, 2016–2025 — and what the filing does and does not let anyone verify.
- Non-revenue water, FY2025
- 21.4% Computed from filed system input and billed consumption.
- system input volume 41.7 sheet Sheet1, cell H127 · thousands of gallons, declared in the column header, divided by 1,000 · net of water sold to wholesale customers, which is the volume entering this utility's own distribution system
- billed authorized consumption 32.8 sheet Sheet1, cell I127 · thousands of gallons, declared in the column header, divided by 1,000
- Recoverable annually
- — Not estimable from what PSC publishes. A loss percentage cannot be priced without the volume it is a share of.
- Balance check
- inapplicable The components PSC publishes contradict each other, which is a defect in the export rather than in the filing.
2026-09-08-5ef7d6e2fdbd.csvSheet1 H127
Where this figure comes from
(system input − billed authorized) ÷ system input × 100
From data/archive/wi-psc-water-audit/2026-09-08-5ef7d6e2fdbd.csv (SHA-256 5ef7d6e2fdbdac2b), retrieved 2026-09-08 from the published source.
What the record shows
21.4% non-revenue water in FY2025, higher than 66% of the 562 Wisconsin systems that filed that year.
- The figure is improving across the record.
Debt outstanding, and what covers the interest
$296,901 of long-term debt outstanding at the end of 2025, across 1 bond issue. This is principal outstanding on a combined water and sewer utility's balance sheet, which the Commission files as one.
| Year | Debt outstanding | Issues |
|---|---|---|
| 2025 | $296,901 | 1 |
| 2024 | $387,889 | 1 |
| 2023 | $476,687 | 1 |
| 2022 | $561,724 | 1 |
| 2021 | $795,000 | 1 |
| 2020 | $890,000 | 1 |
| 2019 | $985,000 | 1 |
| 2018 | $1.1M | 1 |
| 2017 | $1.2M | 1 |
| 2016 | $1.3M | 1 |
This utility's balance sheet and income statement are water and sewer, filed as one. A coverage ratio computed from them would put one service's revenue over another service's interest.
Figures are as filed with the Commission under Wis. Admin. Code ch. PSC 185 and are not audited as presented. Nothing here is a credit opinion, an implied rating, or a judgement that any figure is sufficient. Source: Public Service Commission of Wisconsin, annual report financial schedules, 2016–2025, retrieved 2026-09-12.
- The components PSC publishes for FY2025 do not sum to the system input it publishes for the same filing — a defect in the published export, not in what the utility filed.
Each is reproduced exactly as filed and excluded from every figure computed on this page. A number that contradicts its own audit is a finding about the filing, not a gap in ours.
Where these volumes come from
- System input 41.7 MG sheet Sheet1, cell H127 · thousands of gallons, declared in the column header, divided by 1,000 · net of water sold to wholesale customers, which is the volume entering this utility's own distribution system
- Billed authorized 32.8 MG sheet Sheet1, cell I127 · thousands of gallons, declared in the column header, divided by 1,000
- Unbilled authorized 5 MG sheet Sheet1, cell O127 · thousands of gallons, declared in the column header, divided by 1,000
- Apparent loss 0 MG sheet Sheet1, cell R127 · thousands of gallons, declared in the column header, divided by 1,000
- Real loss 5.22 MG sheet Sheet1, cell U127 · thousands of gallons, declared in the column header, divided by 1,000
From data/archive/wi-psc-water-audit/2026-09-08-5ef7d6e2fdbd.csv (SHA-256 5ef7d6e2fdbdac2b), retrieved 2026-09-08 from the published source.
| Year | NRW | Input (MG) |
|---|---|---|
| 2025 | 21.4% | 41.7 |
| 2024 | 34.8% | 43.4 |
| 2023 | 31.1% | 39.2 |
| 2022 | 46.4% | 50.2 |
| 2021 | 29.7% | 40.2 |
| 2020 | 24.5% | 34.4 |
| 2019 | 23.2% | 34.5 |
| 2018 | 21.4% | 35.3 |
| 2017 | 20.7% | 36.4 |
| 2016 | 45.0% | 52.5 |
Balance closure is inapplicable on every filed year above, so the column that repeated it is not shown. FY2016–FY2024: PSC derives water losses from system input minus authorized consumption, so this decomposition holds by construction. FY2025: The components PSC publishes contradict each other, which is a defect in the export rather than in the filing. This is neither a pass nor a disclosure gap.
Other Wisconsin systems
PSC publishes no county or connection count for these systems, so they cannot be ranked against this one. These are other filers, not comparables.
- Leroy Sanitary District No 1
- Liberty Grove Sanitary District No 1
- Linden Municipal Water
- Linden Tn Of Sanitary Dist #1
- Lincoln Sanitary District #1
- Little Chute Municipal
- Livingston Municipal Water
- Lodi Municipal Light And Water
Where is it going?
This page says how much. 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 Darien Water Works AndSources 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.
- Public Service Commission of Wisconsin, municipal annual report Schedule W-15. Retrieved 2026-09-08 from data/archive/wi-psc-water-audit/2026-09-08-5ef7d6e2fdbd.csv. https://apps.psc.wi.gov/ARS/WEGSqueries/default.aspx