CITY REPORT IL

Union, IL: 2 Violations — 72/100 (2026)

1 ZIP code · 4 water systems · Updated 2026-06-03

For households in Union, IL water data shows a consistently above-average safety picture.

How Union Compares

Union72/100
Illinois avg61/100
National avg67/100

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

1
ZIP Codes
4
Water Systems
1
ZIPs with Violations
B · 72
Avg Safety Score
Zone 2
Radon Risk (Moderate)
$290K
Median Home Value
$1,600
Est. Remediation (0.5% of home value)

Key Facts for Union Residents

  • Your city's water systems recorded 2 violations in the past 5 years.
  • Average lead level: 0.0068 mg/L.
  • Homes built before 1986: 58% — older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 11.76.

Union's Water Providers

Water supply in Union, IL follows a divided structure: 3 utilities account for the largest share of residential service out of 4 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.

Huntley
Serves ~28,495 people · 2 violations
72
/100
Woodstock
Serves ~25,630 people · 2 violations
72
/100
Marengo
Serves ~7,572 people · 2 violations
72
/100

Overview

We track water quality and home safety data for 1 ZIP code in Union, Illinois (population ~2,092), covering 4 community water systems serving approximately 62,291 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 Union: B (72/100)

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

Union water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0068 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
Stage 2 DBP Rule Treatment Technique 2 1
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60180 B 2 0 Union

All ZIP Codes in Union

  • 60180 [B] — 2 violations

Data Sources

Updated daily.

Union Community Health Snapshot

9.6%
Asthma (US: 9.8%)
10.5%
Diabetes (US: 10.4%)
15.4%
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 9.6% ↓
Diabetes 10.5% ↑
Mental Health 15.4% ↑

Vertical line = national average. Above national · Below national

What's in Union's Water?

Stage 2 DBP Rule 2 violations
Treatment Technique
Disinfection byproduct exposure risk
Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

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

Union Infrastructure Age

1989
Median Build Year
58%
Built Before 1986
26%
Built Before 1970
Copper
Likely Pipe Material

With 58% 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

Decades of residential development in Union took place before the two main regulatory milestones that reduced plumbing-era lead risk: the phase-out of lead pipes before 1970, and the federal ban on lead solder in 1986. With a median build year of 1989, the housing stock here is anchored in that earlier period. The distinction between pre-1970 and 1970-to-1986 construction matters: the oldest homes may have lead pipes in the service line and lead solder in the copper joints, while the 1970-to-1986 tier still carries the solder risk even after lead pipes became less common. Together, these two risk layers affect a majority of the residential properties in the city — a fact the aggregate water quality data doesn't directly reveal.

1989
Median Year Built
58%
Pre-1986 (Lead Paint Risk)
26%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (26%) 1970–1986 (32%) Post-1986 (42%)

Over half of homes in Union 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 Union

When estimated remediation is placed alongside median property values in Union, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.

Median Home Value
$290,300
Est. Remediation
$1,600
Remediation as % of home value 0.5%

Remediation costs in Union are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 58% above the Illinois average.

Union: Lead Risk & Vulnerable Populations

58%
Homes Built Before 1986
0.0068
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.

Households with kids in the home — for whom CDC guidance places particular weight on minimizing exposure — face a specific local picture in Union. 58% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.

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

Union: Flood History & Water Damage Risk

Although Union's flood history doesn't reach high-severity thresholds, NFIP data documents 23 claims and FEMA maps place 100% of ZIP codes in designated flood zones — a combined profile that makes flood-related water quality considerations a reasonable planning baseline.

23
Total FEMA Flood Claims
$6,672
Avg Claim Payout
100%
ZIPs in FEMA Flood Zones
~1
Est. Claims/Year

Union has a moderate flood history with 23 FEMA claims averaging $6,672 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.

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.

Frequently Asked Questions

Is the water safe to drink in Union, IL?
Union has an average water safety score of 72/100 (Grade B). 2 EPA violations have been recorded. Check individual ZIP code reports for details specific to your neighborhood.
How many water violations does Union have?
Union water systems have a total of 2 EPA violations. Violations are tracked across 1 ZIP code.
Does Union water have lead?
The average 90th-percentile lead level in Union is 0.0068 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 Union compare to Illinois average?
Union has an average water safety score of 72/100, which is above the Illinois state average of 61/100.
How many water systems serve Union?
Union is served by 4 public water systems across 1 ZIP code, serving approximately 2,092 people.
How much does it cost to fix water issues in Union?
Estimated remediation costs in Union average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Union, IL

Get safety alerts for Union, Illinois

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found — check filter options Free tool — no phone call required.