East Peoria Water Hardness & Quality Report (2026)
Water Hardness
12.1 grains per gallon
Source
river
pH Level
8.3
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
456.1 mg/L
Est. Daily Cost
$0.55
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
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 East Peoria, your appliances are currently losing 28% efficiency due to mineral buildup.
| Appliance | In East Peoria | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.8 yrs | 8.5 yrs | -67% |
| Washing Machine | 5.9 yrs | 12 yrs | -51% |
| Water Heater | 7.3 yrs | 15 yrs | -51% |
Regional Water Comparison
How East Peoria compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ East Peoria, Illinois | 207.5 mg/L | 7.3 ppt | 🔴 Very Hard | river |
| Peoria, Illinois | 183 mg/L | 6.4 ppt | 🔴 Very Hard | river |
| North Peoria, Illinois | 245 mg/L | 8.5 ppt | 🔴 Very Hard | river |
| Pekin, Illinois | 176.5 mg/L | 6.2 ppt | 🟠 Hard | river |
| Morton, Illinois | 157.5 mg/L | 5.6 ppt | 🟠 Hard | river |
National Benchmark
How East Peoria compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ East Peoria | 207.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes East Peoria's Water Unique?
Local geology and source profile
East Peoria, Illinois, in Tazewell County on the east bank of the Illinois River across from Peoria — home to Illinois Central College and the iconic Par-A-Dice Hotel & Casino on the river — receives its municipal water from the City of East Peoria Water Division, drawing from the Illinois River through a surface water intake in the Tazewell County reach. The Illinois River at East Peoria is the primary water source for both Peoria and the east bank communities along this central Illinois river corridor.
The very hard 207.5 mg/L hardness and elevated TDS of 456.1 mg/L reflect the Illinois River's deep carbonate basin drainage. The Illinois River drains the entire central Illinois carbonate plain — an expansive landscape underlain by Silurian Niagara Dolomite, Devonian carbonate formations, Ordovician Galena Group limestone, and the Ordovician Galena-Platteville Dolomite — the same reef-derived carbonate platform producing very hard water throughout northern and central Illinois. River baseflow from the carbonate aquifer sustains the Illinois River with consistent calcium and magnesium bicarbonate loading year-round. East Peoria's industrial corridor along the river adds additional mineral complexity from manufacturing and agricultural drainage.
At 207.5 mg/L, East Peoria residents deal with very hard water affecting all household water systems. Scale builds rapidly in kettles and coffee machines within weeks, dishwashers require rinse aid or water softener treatment, and bathroom fixtures develop heavy calcium deposits. Descaling appliances every four to six weeks is the appropriate cadence. A whole-house water softener is strongly recommended for East Peoria homes. The PFAS level of 7.3 ppt warrants a certified drinking water filter — the Peoria metropolitan area's industrial legacy, including the Caterpillar manufacturing corridor and the Illinois River's industrial drainage, contribute to the regional PFAS profile.
Geology & Source: East Peoria in Tazewell County draws from the Illinois River — the Illinois River drains central Illinois over Silurian and Devonian carbonate formations and the Ordovician Galena Group dolomite platform — carbonate-rich Illinois River basin drainage from the central Illinois carbonate plain produces very hard water at 207.5 mg/L in this Peoria metro community.