Slinger
What Slinger 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
- 30.1% Computed from filed system input and billed consumption.
- system input volume 178.7 sheet Sheet1, cell H469 · 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 124.9 sheet Sheet1, cell I469 · 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 PSC derives water losses from system input minus authorized consumption, so this decomposition holds by construction.
2026-09-08-5ef7d6e2fdbd.csvSheet1 H469
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
30.1% non-revenue water in FY2025, higher than 84% of the 562 Wisconsin systems that filed that year.
- The figure is improving across the record.
- The figure moved from 11% to 30% between FY2024 and FY2025.
Debt outstanding, and what covers the interest
$6.1M of long-term debt outstanding at the end of 2025, across 5 bond issues. This is principal outstanding on a combined water and electric utility's balance sheet, which the Commission files as one.
| Year | Debt outstanding | Issues |
|---|---|---|
| 2025 | $6.1M | 5 |
| 2024 | $2.8M | 3 |
| 2023 | $3.0M | 3 |
| 2022 | $3.2M | 3 |
| 2021 | $3.4M | 3 |
| 2020 | $3.6M | 3 |
| 2019 | $3.8M | 3 |
| 2018 | $1.7M | 2 |
| 2017 | $555,000 | 1 |
| 2016 | $660,000 | 1 |
This utility's balance sheet and income statement are water and electric, 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.
PSC derives water losses from system input minus authorized consumption, so these parts sum to the whole on every filing. What a filing can get wrong is which of these numbers were measured.
Where these volumes come from
- System input 178.7 MG sheet Sheet1, cell H469 · 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 124.9 MG sheet Sheet1, cell I469 · thousands of gallons, declared in the column header, divided by 1,000
- Unbilled authorized 4.26 MG sheet Sheet1, cell O469 · thousands of gallons, declared in the column header, divided by 1,000
- Apparent loss 0 MG sheet Sheet1, cell R469 · thousands of gallons, declared in the column header, divided by 1,000
- Real loss 49.5 MG sheet Sheet1, cell U469 · 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 | 30.1% | 178.7 |
| 2024 | 11.2% | 140.2 |
| 2023 | 7.7% | 141.4 |
| 2022 | 12.9% | 141.1 |
| 2021 | 18.9% | 146.8 |
| 2020 | 27.1% | 148.1 |
| 2019 | 22.0% | 150.5 |
| 2018 | 27.0% | 169.7 |
| 2017 | 24.1% | 148.4 |
| 2016 | 34.0% | 171.2 |
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.
- South Wayne Municipal Water
- Sparta Municipal
- Spencer Municipal Water
- Spooner Municipal
- Spring Green Municipal Water
- Spring Valley
- Stanley Municipal
- Star Prairie Municipal 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 SlingerSources 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