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West Garfield Park Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

river

pH Level

8.1

neutral = 7.0

Lead

0.005 mg/L

✓ Below action level

TDS

371.5 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Garfield Park, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn West Garfield ParkSoft Water CityEfficiency 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 Garfield Park compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
West Garfield Park, Illinois≈ 120–179 mg/L6.4 ppt🟠 Hardriver
North Lawndale, Illinois≈ 120–179 mg/L8.5 ppt🟠 Hardriver
East Garfield Park, Illinois≈ 120–179 mg/L7.2 ppt🟠 Hardriver
South Lawndale, Illinois≈ 120–179 mg/L9.1 ppt🟠 Hardriver
Cicero, Illinois≈ 120–179 mg/L0 ppt🟠 Hardriver

National Benchmark

How West Garfield Park compares to the USA average

BenchmarkHardnessAppliance Risk
West Garfield Park≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes West Garfield Park's Water Unique?

Local geology and source profile

Source: RiverTDS: 371.5 mg/LpH: 8.1

The Chicago Department of Water Management supplies West Garfield Park, a neighborhood in Chicago, Illinois. The primary source is Lake Michigan, treated at facilities including the Jardine Water Purification Plant and South Water Purification Plant serving the west side. Supplemental groundwater from shallow and deep wells in DuPage and surrounding counties augments supply during peak demand. The service area covers Cook County, providing over 400 million gallons daily to Chicago and its suburbs, including West Garfield Park and other west-side communities.

Lake Michigan's watershed drains a vast Great Lakes basin underlain by Paleozoic carbonate rocks — Silurian dolomite and limestone — dissolving calcium and magnesium into the supply. Local groundwater taps glacial drift aquifers overlying Devonian-Silurian carbonate formations, further enhancing mineralisation. This geology shapes a characteristically hard water profile for the Chicago area, with higher dissolved solids from bedrock interaction compared to softer precipitation-dominated sources elsewhere in Illinois.

Hard water promotes scale buildup in pipes, water heaters, and dishwashers, reducing efficiency and lifespan. Water heaters, washing machines, and faucets show white mineral deposits most visibly. Regular vinegar descaling and magnetic treatments mitigate issues; a whole-house water softener is recommended to prevent appliance wear and improve soap efficiency. Chicago water maintains pH 7.5–8.5, complies with EPA lead/copper rules via corrosion control, and reports no notable PFAS exceedances. Treatment at purification plants involves screening, ozonation, chloramination, and fluoridation.

Geology & Source: Chicago Lake Michigan supply; Paleozoic Silurian dolomite and limestone contact yields calcium and magnesium; glacial drift aquifers over Devonian-Silurian carbonate rock layers supplement hardness — characteristically hard water

Other Illinois Water Reports

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Frequently Asked Questions

Is West Garfield Park's water safe to drink?
Yes. West Garfield Park's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in West Garfield Park?
At ≈ 120–179 mg/L (Hard), West Garfield Park'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 20%.
How does West Garfield Park compare to the USA average?
The USA national average is 151 mg/L. West Garfield Park (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for West Garfield Park is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

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.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.