Municorn.us

Models and public records for water and sewer utilities.

We build cost-of-service models, consumption panels and valuations from a utility’s own records. We also publish the water loss filings of six states and the rates and finances of every community water system in the country.

Email us Browse public data Cambridge, MA · Dallas, TX

Services

Most of our work is a cost-of-service and rate study. We start with the city’s last study, its audited statements and a billing extract. A typical study takes eight to twelve weeks, at a fee agreed before work begins.

If you run your own studies

For rate consultants and engineering firms that run their own studies, we prepare the recurring analysis those studies need. We have built normalized consumption panels, affordability exhibits and filing extraction. See what we build.

Find a utility by name.

4,950 public water systems, 26,906 filed utility-years and six states, assembled from records published by 24 agencies. Free to search and read.

Open the water loss index

Missing filings and unavailable fields are marked in the data.

Two exhibits

IllustrativeNames, dates and figures invented.

The week before the study starts

Is this billing extract usable?

Billing extract, first pass

City of Ellery water fund · 8,412 accounts · 24 monthly periods to June 2026

Forty-seven account-periods are flagged. All forty-seven stay in the panel, with a reason recorded for each.

ClassMeterPeriodsFlaggedWhy
Residential5/8 in240
Residential1 in242Meter changed mid-period
Commercial1 in240
Commercial2 in243Consumption implausible
Irrigation1 in1818Partial period
Industrial4 in240
Code 58mixed2424Class code unmapped

We flag rather than drop. The panel does not exclude rows; the study team decides what to leave out, and each flag keeps its reason on the row.

Budget season

Can we afford the capital plan?

Financial plan

City of Ellery water fund · FY27 to FY32 · $26M lead service line replacement, drawn FY29

Coverage falls below the 1.20× covenant in FY30 and does not recover. Scenario B keeps it above 1.20× with a 9.5% increase in FY29.

YearNet revenueDebt serviceCoverageMargin over 1.20×
FY27$6.02M$4.18M1.44×+0.24×
FY28$6.18M$4.31M1.43×+0.23×
FY29$6.35M$5.25M1.21×+0.01×
FY30$6.41M$5.94M1.08×−0.12×
FY31$6.52M$6.11M1.07×−0.13×
FY32$6.64M$6.18M1.07×−0.13×

Debt service is the existing schedule plus the new loan, level over twenty years. The 1.20× minimum is the bond ordinance, section 5.2.

YearNet revenueDebt serviceCoverageMargin over 1.20×
FY27$6.02M$4.18M1.44×+0.24×
FY28$6.18M$4.31M1.43×+0.23×
FY29$7.02M$5.25M1.34×+0.14×
FY30$7.28M$5.94M1.23×+0.03×
FY31$7.46M$6.11M1.22×+0.02×
FY32$7.61M$6.18M1.23×+0.03×

Same debt service. Net revenue reflects a 9.5% increase adopted in FY29 and no increase after it. Bond ordinance, section 5.2.

If the coverage the bonds require is higher than what customers can pay, rate design cannot close the gap. The board then has to reconsider the capital plan, the financing or the timing.

We will read your last rate study at no charge.

Send the last rate study, the audited statements, the current rate schedule and a recent billing extract. Meter logs and the capital plan help, but neither is required to start. We compare the study’s assumptions with the billing data and with what the system filed with its regulator.

[email protected]
Clients
Water and sewer utilities, cities and utility districts
Project team
Ammar Plumber, Cameron Obrecht and Vincent Cavanna

The water loss index is a public example of this work, built from published data.