Mokena, IL: 51 Violations - Home Safety 75/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Mokena: B.
This ZIP looks solid, with a few items worth a quick check.
Although water quality varies across any metro, Mokena's systems collectively post above-average compliance scores for IL - and documented violations are few.
How Mokena Compares
Data: EPA SDWIS
Mokena Water: The Quick Version
- Your city's water systems recorded 51 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 36% - older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 11.84.
Water Systems Serving Mokena
In Mokena, IL, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 5 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Mokena, Illinois (population ~24,630), covering 5 community water systems serving approximately 129,505 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 Mokena: 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
Mokena water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 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
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 |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 6 | 1 |
| Revised Total Coliform Rule | Microbiological | 6 | 1 |
| Contaminant 2032 | Other | 4 | 1 |
| Contaminant 2036 | Other | 4 | 1 |
| Contaminant 2931 | Other | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 60448 | B | 51 | 0 | Mokena |
All ZIP Codes in Mokena
- 60448 [B] - 51 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.
CDC Health Data for Mokena
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Mokena
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Mokena's Housing Stock?
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
Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Mokena, where the median build year is 1996, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments - the key ages for understanding where plumbing-era risk concentrates across the city.
Most homes in Mokena were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Mokena: Remediation Cost in Perspective
Remediation costs in Mokena are small relative to typical property values - the cost-to-value ratio here is favorable.
Remediation costs in Mokena are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 101% above the Illinois average.
Protecting Children from Lead in Mokena
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.
Practically, the structural drivers in Mokena - 36% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark - make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Mokena
Historical NFIP data for Mokena contains 19 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $8,376. 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. The <strong>$1,600</strong> 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 Mokena, IL