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How we calculated this

Read by an AI agent (a large language model) from the utility's official rate schedule, then audited by a second model against the same schedule. This bill is for the main service area; customers in 3 other rate areas (2nd Level, 3rd Level, outside the city) pay different rates.

Extracted by: Audit · Claude Opus 5.5 · 11/02/2026
Source:
Base charge (3/4" meter): $24.60/mo
Water use: first 7 hcf × $2.70 + 1.021 hcf × $3.53 = $22.50
Total: $47.10/mo

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Utility profile · OR

CORVALLIS, CITY OF Water Rates

CORVALLIS, CITY OF supplies water to about 61,000 people in Corvallis, Oregon. A typical household using 6,000 gallons a month pays an estimated $47.10 in the main service area, 19% below the national average.

Rates effective 2026-02-01

Updated Nov 2026

How much does water cost provided by CORVALLIS, CITY OF?

Monthly Rate

$47.10 / month
Read and audited by AI against the official rate schedule ·

This bill is for the main service area; customers in 3 other rate areas (2nd Level, 3rd Level, outside the city) pay different rates.

How the bill adds up

Base charge (3/4" meter) $24.60
Total $47.10

How does CORVALLIS, CITY OF's water cost compare to its regional neighbors?

Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.

Where does CORVALLIS, CITY OF provide service?

Population served and the municipalities covered by this utility's service area.

Boundaries from the EPA Water System Service Areas dataset. Not all utilities have mapped boundaries.

Population Served

61,468

Municipalities served

Where does CORVALLIS, CITY OF's water come from?

Supply and provider classification from EPA records.

Primary Source
Surface Water
Provider Type
Local Govt
PWSID
OR4100225

Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.

Is water affordable for CORVALLIS, CITY OF's customers?

Annual bill as a share of median household income in the service area.

Water Burden

1.0% of income (annual)
of median area income · affordability threshold: 2%

We don't yet systematically track whether a utility offers income-based or sliding-scale pricing separate from its standard rates — tracked separately for a future update.

Where did this data come from?

This rate was extracted from CORVALLIS, CITY OF's published tariff document by an AI research agent, then checked against a validation checklist before publishing. See the full methodology for how every utility on this site is sourced and scored.

Provenance

Extracted by: Audit · Claude Opus 5.5 · 11/02/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?