CITY REPORT IL

Westchester, IL: 2 Violations — 66/100 (2026)

1 ZIP code · 3 water systems · Updated 2026-06-03

Across Westchester, EPA compliance data for IL sits at a moderate level — not alarming, but not uniformly clean across all service areas either.

How Westchester Compares

Westchester66/100
Illinois avg61/100
National avg67/100

Data: EPA SDWIS Last verified: 2026-06-03

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
C · 66
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$297K
Median Home Value
$1,600
Est. Remediation (0.5% of home value)

Key Facts for Westchester Residents

  • Your city's water systems recorded 2 violations in the past 5 years.
  • Average lead level: 0.0021 mg/L.
  • Homes built before 1986: 93% — older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 11.18.

Westchester's Water Providers

Water service in Westchester, IL is split across 3 utilities out of 3 tracked federally, each operating its own infrastructure and compliance record.

Westchester
Serves ~16,241 people · 2 violations
66
/100
Hillside
Serves ~8,200 people · 2 violations
66
/100
Aqua Illinois-oak Brook
Serves ~5,361 people · 2 violations
66
/100

Overview

We track water quality and home safety data for 1 ZIP code in Westchester, Illinois (population ~16,524), covering 3 community water systems serving approximately 29,802 people region-wide.

1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.

Home Safety Score

Average Home Safety Score for Westchester: C (66/100)

The score combines three factors:

Factor What It Measures
Water Quality EPA violations and compliance history
Lead Levels 90th percentile lead concentration vs EPA action level
Radon Risk EPA radon zone classification

Water Sources

Westchester water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0021 mg/L (EPA action level: 0.015 mg/L)
  • 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1
Stage 2 DBP Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60154 C 2 0 Westchester

All ZIP Codes in Westchester

  • 60154 [C] — 2 violations

Data Sources

Updated daily.

Westchester Community Health Snapshot

9.8%
Asthma (US: 9.8%)
11.8%
Diabetes (US: 10.4%)
14.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 9.8% ↓
Diabetes 11.8% ↑
Mental Health 14.9% ↑

Vertical line = national average. Above national · Below national

What's in Westchester's Water?

Total Trihalomethanes (TTHM) 2 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Westchester Infrastructure Age

1953
Median Build Year
93%
Built Before 1986
65%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 93% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1953 places Westchester's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1953
Median Year Built
93%
Pre-1986 (Lead Paint Risk)
65%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (65%) 1970–1986 (28%) Post-1986 (7%)

Over half of homes in Westchester were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Westchester

When remediation costs are measured against Westchester home values, the resulting ratio is in the low tier — addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.

Median Home Value
$297,400
Est. Remediation
$1,600
Remediation as % of home value 0.5%

Remediation costs in Westchester are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 62% above the Illinois average.

Westchester: Lead Risk & Vulnerable Populations

93%
Homes Built Before 1986
0.0021
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 93% of Westchester stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Westchester: Flood History & Water Damage Risk

Measured against the full NFIP dataset, Westchester's flood record stands out: 593 claims accumulated over decades and 100% of ZIP codes inside FEMA-designated boundaries add up to a high-exposure profile where water infrastructure has faced recurrent stress.

593
Total FEMA Flood Claims
$8,754
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones
~30
Est. Claims/Year

Westchester has a significant flood history with 593 FEMA flood insurance claims on record, averaging $8,754 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,600</strong> remediation cost per household.

Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.

Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.

What You Can Do in Westchester

  1. Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
  2. Install a certified water filter. Filters rated for Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Westchester's water.
  3. Check your home's plumbing. With 93% of homes built before 1986, lead solder is a real possibility.

Frequently Asked Questions

Is the water safe to drink in Westchester, IL?
Westchester has an average water safety score of 66/100 (Grade C). 2 EPA violations have been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Westchester have?
Westchester water systems have a total of 2 EPA violations. Violations are tracked across 1 ZIP code.
Does Westchester water have lead?
The average 90th-percentile lead level in Westchester is 0.0021 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home — testing is recommended especially in older properties.
How does Westchester compare to Illinois average?
Westchester has an average water safety score of 66/100, which is above the Illinois state average of 61/100.
How many water systems serve Westchester?
Westchester is served by 3 public water systems across 1 ZIP code, serving approximately 16,524 people.
How much does it cost to fix water issues in Westchester?
Estimated remediation costs in Westchester average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
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