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Urbana Water Hardness & Quality Report (2026)

Water Hardness

264.5mg/L
Very Hard

15.5 grains per gallon

Source

river

pH Level

8.5

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

679.6 mg/L

Est. Daily Cost

$0.71

energy & soap waste

Source: USGS Water Quality Portal · Updated 2026

264.5mg/L as CaCO₃Very Hard

0–60

mg/L

Soft

61–120

mg/L

Moderately Hard

121–180

mg/L

Hard

180+

mg/L

Very Hard

Appliance Damage Report

In Urbana, your appliances are currently losing 35% efficiency due to mineral buildup.

ApplianceIn UrbanaSoft Water CityEfficiency Loss
Kettle
1.5 yrs
8.5 yrs-82%
Washing Machine
3.8 yrs
12 yrs-68%
Water Heater
5 yrs
15 yrs-67%
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Regional Water Comparison

How Urbana compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Urbana, Illinois264.5 mg/L9.2 ppt🔴 Very Hardriver
Champaign, Illinois149.5 mg/L5.3 ppt🟠 Hardriver
Rantoul, Illinois101.5 mg/L3.7 ppt🟡 Moderately Hardriver
Danville, Illinois127 mg/L4.6 ppt🟠 Hardriver
Charleston, Illinois244.5 mg/L8.5 ppt🔴 Very Hardriver

National Benchmark

How Urbana compares to the USA average

BenchmarkHardnessAppliance Risk
Urbana264.5 mg/L🔴 High
USA National Avg150 mg/L🟠 Moderate
Badger Top Rated8.5 mg/L🟢 None

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What Makes Urbana's Water Unique?

Local geology and source profile

Source: RiverTDS: 679.6 mg/LpH: 8.5

Urbana, Illinois, in Champaign County — the home of the University of Illinois Urbana-Champaign (UIUC, one of the world's great public research universities, home of the Grainger College of Engineering, the Illinois Fighting Illini, the Alma Mater statue, and the historic Altgeld Hall chimes tower), the twin city of Champaign, a major Midwest college town and tech innovation corridor in the east-central Illinois cornbelt — draws its municipal water supply from the Mahomet Aquifer via the City of Urbana Water Division. Water hardness in Urbana measures 264.5 mg/L — classified as very hard.

Urbana's very hard supply reflects the Champaign County Mahomet Aquifer's exceptional calcareous geology. The Mahomet Aquifer — a buried bedrock valley (the Mahomet Valley, a preglacial river valley filled with calcareous glacial outwash) — is hosted in: calcareous Wisconsin Age outwash and till from the Lake Michigan and Huron–Erie Lobes (calcareous till derived from the Michigan Basin dolomite and Indiana–Ohio calcareous limestone terrain); the Pennsylvanian–Mississippian calcareous limestone and dolomite of the buried Mahomet Valley bedrock. The exceptional calcareous glacial fill in the Mahomet buried valley produces the very hard 264.5 mg/L at Urbana.

At 264.5 mg/L, Urbana residents face severe hard water challenges. Scale deposits form very rapidly on all fixtures and appliances — weekly descaling measures are strongly recommended. City of Urbana Water Division consistently delivers water meeting all Illinois EPA and federal EPA Safe Drinking Water Act requirements.

Geology & Source: Groundwater from the Mahomet Aquifer (Champaign County buried valley glacial aquifer) via the City of Urbana Water Division — the Champaign County east-central Illinois Mahomet buried bedrock valley (Wisconsin Age calcareous dolomite till from the Lake Michigan Lobe and Pennsylvanian–Mississippian calcareous dolomite and limestone); very hard supply at 264.5 mg/L — reflecting the Mahomet Aquifer's highly calcareous calcareous glacial fill.

Other Illinois Water Reports

Frequently Asked Questions

Is Urbana's water safe to drink?
Yes. Urbana's water meets all federal safety standards. The hardness is 264.5 mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Urbana?
At 264.5 mg/L (Very Hard), Urbana's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 35%.
How does Urbana compare to the USA average?
The USA national average is 150 mg/L. Urbana at 264.5 mg/L is 115 mg/L above the national average. The softest major city is Badger at just 8.5 mg/L.
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