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How we calculated this
Extracted by: Luna (gpt-6-luna) · 10/06/2026
Source:
Service charge (¾" Meter meter): $22.81/mo
Water used, 6,000 gal: $12.03/mo
Total: $34.84/mo

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Utility profile · CA

RIO ALTO WATER DISTRICT Water Rates

RIO ALTO WATER DISTRICT supplies water to about 3,300 people in Lake California, California. We compare every utility at 6,000 gallons a month, about what a family of four uses. At that amount, a home here pays $34.84. That is 39% less than the national average of $57.51.

Rates effective 2026-01-02

Updated Oct 2026

Beta. Rates are standardized estimates for comparison, not official bills.

How much does water cost provided by RIO ALTO WATER DISTRICT?

Standardized to a 6,000 gallon/month residential bill on a 5/8"–3/4" meter.

Monthly Rate

$34.84 / 6k gal
Is this right?
-39% vs natl avg

Average cost per 1k gal

$5.81 / 1k gal

At 6,000 gal, fixed charge included.

How does RIO ALTO WATER DISTRICT'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 RIO ALTO WATER DISTRICT 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

3,329

Municipalities served

Where does RIO ALTO WATER DISTRICT's water come from?

Supply and provider classification from EPA records.

Primary Source
Groundwater
Provider Type
Local Govt
PWSID
CA5210005

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 RIO ALTO WATER DISTRICT's customers?

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

Water Burden

0.4% 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 RIO ALTO WATER DISTRICT'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: Luna (gpt-6-luna) · 10/06/2026
Confidence label: Model estimate

Spot an error, or have a newer rate schedule?