CITY REPORT IL

Tinley Park, IL: 18 Violations - Home Safety 66/100

2 ZIP codes · 8 water systems · Updated

ZipCheckup grade for Tinley Park: C.

A mixed picture - some signals here are worth your attention.

Tinley Park earns a C grade for IL; check the EPA record for the system that serves your address.

How Tinley Park Compares

Tinley Park66/100
Illinois avg68/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
8
Water Systems
2
ZIPs Linked to Systems with Violations
C · 66
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$340K
Median Home Value
$500
Est. Remediation (0.1% of home value)

Tinley Park Water: The Quick Version

  • Your city's water systems recorded 18 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0031 mg/L.
  • Homes built before 1986: 47% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 11.18.

Water Systems Serving Tinley Park

3 systems shown for Tinley Park, IL, from 8 on the federal list.

Overview

We track home safety data for 2 ZIP codes in Tinley Park, Illinois (population ~62,274), covering 8 community water systems serving approximately 203,239 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 2 ZIP codes.

2 of 2 ZIP codes 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 Tinley Park: C (66/100)

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

Tinley Park water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0031 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

2 of 2 ZIP records with known zones are 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 15 2
Ethylbenzene Organic 6 2
Lead and Copper Rule Revisions Treatment Technique 5 2
Haloacetic Acids (HAA5) Disinfection Byproducts 3 2
Total Trihalomethanes (TTHM) Disinfection Byproducts 3 2

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60477 C 14 0 Tinley Park
60487 C 12 0 Tinley Park

All ZIP Codes in Tinley Park

  • 60477 [C] - 14 violations
  • 60487 [C] - 12 violations

Data Sources

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

CDC Health Data for Tinley Park

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). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

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

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

Key Contaminants Detected in Tinley Park

Consumer Confidence Rule 15 violations
Reporting
Ethylbenzene 6 violations
Organic
Lead and Copper Rule Revisions 5 violations
Treatment Technique

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

How Old Is Tinley Park's Housing Stock?

1992
Median Build Year
47%
Built Before 1986
16%
Built Before 1970
Copper
Likely Pipe Material

With 47% 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 materials follow installation dates, not medians. Tinley Park records a median build year of 1992, and a meaningful share of its homes date from before the 1986 federal lead restrictions.

1992
Median Year Built
47%
Pre-1986 (lead solder era; lead paint banned 1978)
16%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (16%) 1970–1986 (31%) Post-1986 (53%)

Most homes in Tinley Park were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Tinley Park: Remediation Cost in Perspective

Compared with typical property prices, the remediation estimate for Tinley Park is small in percentage terms - at or under one percent.

Median Home Value
$339,600
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Tinley Park can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 85% above the Illinois average.

Protecting Children from Lead in Tinley Park

47%
Homes Built Before 1986
0.0031
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.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

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

Historical Flood-Claim Evidence for Tinley Park

93
Total FEMA Flood Claims
$2,945
Avg Reported Sum With Payment Data
50%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Tinley Park contains 93 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $2,945. Among ZIP codes with claim records, 50% 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. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

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.

What You Can Do in Tinley Park

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Consumer Confidence Rule, listed in the water-quality records for Tinley Park: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 47% of homes built before 1986, lead solder is a real possibility.

Deep Dive Reports

Detailed analysis for Tinley Park, IL

Frequently Asked Questions

What does the Home Safety Score mean for Tinley Park, IL?
Tinley Park has an average Home Safety Score of 66/100 (Grade C) 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. 18 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 Tinley Park?
EPA records list 18 EPA violations for Tinley Park water systems. These water-system violations are shown for 2 mapped ZIP codes.
Does Tinley Park water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Tinley Park is 0.0031 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 Tinley Park compare to Illinois average?
Tinley Park has an average Home Safety Score of 66/100, which is below the Illinois state average of 68/100 for the same model series.
How many water systems serve Tinley Park?
Our records map 8 water systems to 2 ZIP codes in Tinley Park. The related population figure in our data is approximately 62,274 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Tinley Park?
Estimated remediation cost per household in Tinley Park: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Tinley Park, IL: 18 Violations - Home Safety 66/100. https://zipcheckup.com/cities/il/tinley-park/
BibTeX 
@misc{zipcheckup-cities-il-tinley-park,
  author = {{ZipCheckup}},
  title  = {{Tinley Park, IL: 18 Violations - Home Safety 66/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/tinley-park/}
}

Page version: October 2026.

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