West Town Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
river
pH Level
8.2
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
398 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 West Town, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In West Town | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How West Town compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ West Town, Illinois | ≈ 120–179 mg/L | 6.7 ppt | 🟠 Hard | river |
| Ukrainian Village, Illinois | ≈ 120–179 mg/L | 4.4 ppt | 🟠 Hard | river |
| East Garfield Park, Illinois | ≈ 120–179 mg/L | 7.2 ppt | 🟠 Hard | river |
| Logan Square, Illinois | ≈ 120–179 mg/L | 6 ppt | 🟠 Hard | river |
| Lincoln Park, Illinois | ≈ 120–179 mg/L | 5 ppt | 🟠 Hard | groundwater |
National Benchmark
How West Town compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Town | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes West Town's Water Unique?
Local geology and source profile
The Chicago Department of Water Management (CDWM) serves West Town, a neighborhood in Chicago, Illinois (Cook County), providing water to over 5 million residents in the metro area. The primary source is Lake Michigan, pumped via two major intakes in the lake. Treatment occurs at the Jardine Water Purification Plant — with a capacity of 1 billion gallons per day — and the South Water Purification Plant. West Town falls under the city's core distribution network with no separate local utility; treatment includes screening, ozonation, dual-media filtration, chloramination, and fluoride adjustment.
Lake Michigan's watershed spans the Great Lakes basin, with surface water flowing over Pleistocene glacial deposits and clay-rich sediments. Underlying the region are Ordovician and Silurian dolomites and limestones, including the Galena-Platteville Group and Niagaran Series, which interact during treatment and distribution to leach mineral ions. Despite the lake's naturally soft base profile, this carbonate-rich bedrock imparts a hard supply character, elevating calcium and magnesium and resulting in moderately mineralised water with notable hardness after processing.
Hard water in this range causes scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap lathering diminishes, leading to dry skin and spotted dishes. Maintenance includes regular descaling of appliances, vinegar rinses for fixtures, and magnetic or chemical anti-scale devices; a water softener is recommended to mitigate these effects and extend equipment life. Chicago water maintains pH 7.5–8.5 for corrosion control, complies with EPA lead and copper rules via orthophosphate addition since 2021, and shows no notable PFAS exceedances in recent Consumer Confidence Reports.
Geology & Source: Lake Michigan surface water over Pleistocene glacial deposits; underlying Ordovician Galena-Platteville Group and Silurian Niagaran Series dolomites and limestones contribute calcium and magnesium, elevating hardness despite soft lake source
Other Illinois Water Reports
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Frequently Asked Questions
Is West Town's water safe to drink?
Do I need a water softener in West Town?
How does West Town compare to the USA average?
Data Sources & Methodology
Water quality data for West Town is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.