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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.

Extracted by: Audit · Claude Opus 5.5 · 10/25/2026
Source:
Customer charge, 5/8" meter (includes the first 1,500 gal): $20.00/mo
4,500 gal above the allowance at $1.3694 per 100 gal: $61.62/mo
DSIC infrastructure surcharge: $2.39/mo
Total: $84.01/mo

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Utility profile · IN

INDIANA AMERICAN WATER - NORTHWEST Water Rates

INDIANA AMERICAN WATER - NORTHWEST supplies water to about 210,000 people in Gary, Merrillville, and 7 other places in Indiana. A typical household using 6,000 gallons a month pays an estimated $84.01, 44% above the national average.

Updated Oct 2026

How much does water cost provided by INDIANA AMERICAN WATER - NORTHWEST?

Monthly Rate

$84.01 / month
Read and audited by AI against the official rate schedule

How the bill adds up

Customer charge
5/8" meter (includes the first 1,500 gal)
$20.00
4,500 gal above the allowance at $1.3694 per 100 gal $61.62
DSIC infrastructure surcharge $2.39
Total $84.01

How does INDIANA AMERICAN WATER - NORTHWEST'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 INDIANA AMERICAN WATER - NORTHWEST 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

210,510

Where does INDIANA AMERICAN WATER - NORTHWEST's water come from?

Supply and provider classification from EPA records.

Primary Source
Surface Water
Provider Type
Private
PWSID
IN5245015

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 INDIANA AMERICAN WATER - NORTHWEST's customers?

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

Water Burden

1.6% 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 INDIANA AMERICAN WATER - NORTHWEST'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 · 10/25/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?