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 useCalculationWater 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$62.61
Outside City, 8,000 gal.Published outside-city treatment applied to $41.64$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.

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.