Streator Water Hardness & Quality Report (2026)
Water Hardness
7.6 grains per gallon
Source
river
pH Level
7.7
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
221.7 mg/L
Est. Daily Cost
$0.35
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 Streator, your appliances are currently losing 17% efficiency due to mineral buildup.
| Appliance | In Streator | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.3 yrs | 8.5 yrs | -38% |
| Washing Machine | 8.8 yrs | 12 yrs | -27% |
| Water Heater | 10.4 yrs | 15 yrs | -31% |
Regional Water Comparison
How Streator compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Streator, Illinois | 130.5 mg/L | 4.7 ppt | 🟠 Hard | river |
| Ottawa, Illinois | 134 mg/L | 4.8 ppt | 🟠 Hard | river |
| Morris, Illinois | 154 mg/L | 5.5 ppt | 🟠 Hard | river |
| Normal, Illinois | 231 mg/L | 8.1 ppt | 🔴 Very Hard | river |
| Yorkville, Illinois | 275 mg/L | 9.6 ppt | 🔴 Very Hard | river |
National Benchmark
How Streator compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Streator | 130.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Streator's Water Unique?
Local geology and source profile
Streator, Illinois, in LaSalle County — a LaSalle County city adjacent to Ottawa and Pontiac in north-central Illinois — receives its water from the City of Streator Water, drawing from the Illinois River or Vermilion River (LaSalle County) through the north-central Illinois distribution.
The moderately hard 130.5 mg/L hardness and TDS of 221.7 mg/L reflect the north-central Illinois LaSalle County Illinois River supply's moderate dolomitic character — consistent with the upper Illinois River corridor communities (compare Warrenville IL: 148 mg/L on the Fox River; Western Springs IL: 193.5 mg/L with dolomite blending) where Silurian Niagaran Dolomite dissolution contributes moderate calcareous hardness. The Illinois River at LaSalle County — Silurian Niagaran Dolomite (dolomitic — primary hardness contributor), Mississippian Burlington Limestone (calcareous — secondary contributor), and Quaternary Illinois River alluvium (slightly calcareous — TDS contributor).
At 130.5 mg/L, Streator's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 4.7 ppt warrants a certified drinking water filter — the LaSalle County north-central Illinois industrial corridor contribute to Streator's readings.
Geology & Source: Streator in LaSalle County draws from the City of Streator Water on the Illinois River or Vermilion River (LaSalle County, north-central Illinois) — the Illinois River at LaSalle County drains through Silurian Niagaran Dolomite (dolomitic) and Mississippian calcareous limestone — Illinois LaSalle County Illinois-Vermilion River Silurian-Mississippian dolomitic supply produces moderately hard water at 130.5 mg/L with TDS 221.7 mg/L.