CITY REPORT IL

Addison, IL: 9 Violations - Home Safety 75/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Addison: B.

This ZIP has a few items worth a quick check.

Within Addison, IL, the available records add up to an upper-tier grade; that grade describes records, not the water at a given faucet.

How Addison Compares

Addison75/100
Illinois avg68/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
B · 75
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$315K
Median Home Value

What You Should Know About Addison Water

  • Your city's water systems recorded 9 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0112 mg/L.
  • Homes built before 1986: 75% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 10.67.

Who Supplies Your Water in Addison

Sorted by reported population served, the top 3 of 5 public water systems mapped to Addison, IL appear below, each with its own federal compliance record.

Overview

We track home safety data for 1 ZIP code in Addison, Illinois (population ~37,202), covering 5 community water systems serving approximately 116,729 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Addison: B (75/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Addison water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0112 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Consumer Confidence Rule Reporting 8 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60101 B 9 0 Addison

All ZIP Codes in Addison

  • 60101 [B] - 9 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Addison

8.9%
Asthma (US: 9.8%)
10%
Diabetes (US: 10.4%)
13.4%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 8.9% ↓
Diabetes 10% ↓
Mental Health 13.4% ↓

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Addison Water

Consumer Confidence Rule 8 violations
Reporting
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

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

Housing & Infrastructure in Addison

1978
Median Build Year
75%
Built Before 1986
48%
Built Before 1970
Copper
Likely Pipe Material

With 75% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Plumbing risk in older housing is tied to the period before 1986, when lead pipes and lead solder were still permitted in new plumbing. Addison's median build year is 1978, and properties from before that year might still contain lead-bearing joints or pipes. Much of that risk sits inside individual properties, which city-level water quality averages don't capture.

1978
Median Year Built
75%
Pre-1986 (lead solder era; lead paint banned 1978)
48%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (48%) 1970–1986 (27%) Post-1986 (25%)

Over half of homes in Addison were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Addison

75%
Homes Built Before 1986
0.0112
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Several steps can clarify lead exposure for a Addison household. The area figure, an average of ZIP-level 90th-percentile results, is 0.010 mg/L or higher, and the pre-1986 share of local homes is about 75%. The water utility's lead service line inventory shows how a home's service line is classified, a certified laboratory test measures lead at the tap, and a filter certified to NSF/ANSI 53 for lead reduction is an option where results show lead.

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

Historical NFIP Claim Context in Addison

646
Total FEMA Flood Claims
$17,398
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Addison contains 646 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $17,398. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

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.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Addison, IL?
Addison has an average Home Safety Score of 75/100 (Grade B) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 9 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Addison?
EPA records list 9 EPA violations for Addison water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Addison water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Addison is 0.0112 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Addison compare to Illinois average?
Addison has an average Home Safety Score of 75/100, which is at or above the Illinois state average of 68/100 for the same model series.
How many water systems serve Addison?
Our records map 5 water systems to 1 ZIP code in Addison. The related population figure in our data is approximately 37,202 people; it is not a count of people served citywide.
Home → Cities → Illinois → Addison, IL

How to cite this page

APA ZipCheckup. (2026). Addison, IL: 9 Violations - Home Safety 75/100. https://zipcheckup.com/cities/il/addison/
BibTeX
@misc{zipcheckup-cities-il-addison,
  author = {{ZipCheckup}},
  title  = {{Addison, IL: 9 Violations - Home Safety 75/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/addison/}
}

Page version: October 2026.

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