Roscoe Water Hardness & Quality Report (2026)
Water Hardness
10.1 grains per gallon
Source
river
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
340.3 mg/L
Est. Daily Cost
$0.46
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 Roscoe, your appliances are currently losing 23% efficiency due to mineral buildup.
| Appliance | In Roscoe | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.9 yrs | 8.5 yrs | -54% |
| Washing Machine | 7.2 yrs | 12 yrs | -40% |
| Water Heater | 8.7 yrs | 15 yrs | -42% |
Regional Water Comparison
How Roscoe compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Roscoe, Illinois | 172.5 mg/L | 6.1 ppt | 🟠 Hard | river |
| Machesney Park, Illinois | 202.5 mg/L | 7.1 ppt | 🔴 Very Hard | river |
| Beloit, Wisconsin | 100 mg/L | 3.1 ppt | 🟡 Moderately Hard | groundwater |
| Loves Park, Illinois | 186.5 mg/L | 6.6 ppt | 🔴 Very Hard | river |
| Rockford, Illinois | 160.5 mg/L | 5.7 ppt | 🟠 Hard | river |
National Benchmark
How Roscoe compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Roscoe | 172.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Roscoe home
Shop water softeners on Amazon.com →
What Makes Roscoe's Water Unique?
Local geology and source profile
Roscoe, Illinois, in Winnebago County — a Winnebago County village adjacent to Rockford and South Beloit on the Rock River in north Illinois — receives its water from Illinois American Water or the Roscoe Water Department, drawing from the Rock River through the north Illinois distribution.
The hard 172.5 mg/L hardness and TDS of 340.3 mg/L reflect the Winnebago County supply's hard dolomitic character — the Silurian Niagaran Dolomite and Ordovician Galena Dolomite are calcareous-dolomitic formations in the Illinois Dolomite Plateau, and the Rock River acquires moderate dissolved mineral content from its north Illinois limestone drainage (compare Rockford IL: 168/329 in Winnebago County comparable; South Beloit IL: 176/351 in Winnebago County comparable; Roscoe consistent hard from the same Winnebago County Rock River Silurian dolomitic supply). The Rock River — Silurian Niagaran Dolomite (highly dolomitic — primary hardness contributor), Ordovician Galena Dolomite (calcareous — secondary contributor), and Quaternary Rock River alluvium (calcareous — minor TDS).
At 172.5 mg/L with TDS 340, Roscoe's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 6.1 ppt warrants a certified drinking water filter. Review Illinois American Water's annual water quality report.
Geology & Source: Roscoe in Winnebago County draws from the Illinois American Water on the Rock River (Winnebago County, north Illinois) — the Rock River draws from Silurian Niagaran Dolomite (highly dolomitic) and Ordovician Galena Dolomite (calcareous) — Illinois Winnebago County Rock River Silurian dolomitic supply produces hard water at 172.5 mg/L with TDS 340.3 mg/L.