Lemont, IL: Lead Above EPA Action Level - Home Safety 79/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Lemont: B.
This ZIP has a few items worth a quick check.
Across Lemont, IL, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.
How Lemont Compares
Data: EPA SDWIS
Key Facts for Lemont Residents
- Your city's water systems recorded 44 violations since 2021.
- Average of reported 90th-percentile lead results: 0.02 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average.
- Homes built before 1986: 40% - older plumbing may contain lead solder.
- Estimated remediation: $300 per household.
- Health risk index (ZipCheckup composite of CDC data): 10.67.
Lemont's Water Providers
Counting every public water system linked to Lemont, IL in federal data gives 5. The list below keeps the 3 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Lemont, Illinois (population ~24,255), covering 5 community water systems serving approximately 150,313 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. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Lemont: B (79/100)
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
Lemont water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0200 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 1 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 |
|---|---|---|---|
| Diquat | Organic | 4 | 1 |
| Oxamyl (Vydate) | Organic | 4 | 1 |
| 1,2-Dibromo-3-Chloropropane | Organic | 4 | 1 |
| Ethylene Dibromide | Organic | 4 | 1 |
| Lead and Copper Rule | Treatment Technique | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 60439 | B | 44 | 1 | Lemont |
All ZIP Codes in Lemont
- 60439 [B] - 44 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Lemont Community Health Snapshot
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
Vertical line = national average. ■ Above national · ■ Below national
What's in Lemont's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Lemont Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
A citywide median of 1997 for construction says little about any single address in Lemont. Homes built before 1986, when federal amendments restricted the lead content allowed in new pipe, solder and flux, may contain plumbing materials with more lead, and later renovations may have replaced them. An inspection of the plumbing can identify the materials, and sending a tap water sample to an accredited laboratory measures lead.
Most homes in Lemont 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.
How Remediation Costs Compare in Lemont
In Lemont, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Lemont can be compared with local home values. The $150–$600 estimated range can be set against the median property value; actual costs vary by home. Home values are 154% above the Illinois average.
Lemont: Lead Risk & Vulnerable Populations
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.
40% of Lemont homes were constructed before 1986, when federal law began limiting lead in pipes, solder and flux. Across the city's ZIP codes, water systems' 90th-percentile lead results average no less than 0.010 mg/L. That average can mix higher and lower systems, so it neither confirms nor rules out a problem at a single address; asking the utility how the home's service line is classified in its inventory is a practical next step.
1 ZIP code (100% of the city's ZIP records) is served by a water system whose 90th-percentile lead result exceeds the EPA action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Lemont: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Lemont contains 14 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $7,899. Among ZIP codes with claim records, 0% 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 $300 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.
Deep Dive Reports
Detailed analysis for Lemont, IL