Oviedo’s posted residential water schedule uses a $19.22 City base and marginal rates: $1.59 per 1,000 gallons through 3,000; $3.53 through 10,000; $6.66 through 15,000; $9.49 through 30,000; and $11.15 above 30,000. Reaching a tier does not reprice earlier gallons.
Check the arithmetic
| Account and use | Calculation | Water row |
|---|---|---|
| City, 3,000 gal. | $19.22 + 3 × $1.59 | $23.99 |
| City, 8,000 gal. | $19.22 + 3 × $1.59 + 5 × $3.53 | $41.64 |
| City, 12,000 gal. | $19.22 + 3 × $1.59 + 7 × $3.53 + 2 × $6.66 | $62.02 |
| Outside City, 8,000 gal. | $24.02 + 3 × $1.99 + 5 × $4.41 | $52.04 |
The inputs come from the rates page. Preserve full-precision arithmetic until the service subtotal, then round to cents. A small billing-engine rounding difference should be documented, not concealed.
The outside-city row uses its own posted base and block prices. Multiplying the inside-city $41.64 subtotal by 1.25 would instead give $52.05 after rounding; that shortcut does not reproduce the published components.
Classify before escalating
Confirm the meter size, residential class, City or outside-City status, billed gallons, and statement service dates. The new-rates page helps identify the applicable change period. An address described as “Oviedo” for mailing purposes is not enough to establish utility classification.
These examples reproduce only potable-water rows. Sewer, reclaimed water, solid waste, stormwater, taxes, deposits, arrears, and adjustments can materially change the amount due and are intentionally excluded.
Calculation and update method
LSL re-read both City pages and recalculated all four examples on September 13, 2026. Each block applies only to gallons within that block. No household account or actual bill was reviewed. Before the October rate transition, recheck the City’s schedule against the service period on the statement; do not substitute a future fiscal-year column automatically.