Smithboro, IL: 5 Violations — 53/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Within Smithboro, water quality data indicates below-average safety by IL standards — independent testing is a reasonable precaution for residents whose systems show active violations.
How Smithboro Compares
Data: EPA SDWIS Last verified: 2026-06-03
Smithboro Water: The Quick Version
- Your city's water systems recorded 5 violations in the past 5 years.
- Average lead level: 0.0129 mg/L.
- Homes built before 1986: 64% — older plumbing may contain lead solder.
- Estimated remediation: $900 per household.
- CDC health risk index: 13.59 — above typical levels.
Water Systems Serving Smithboro
Smithboro, IL draws its residential water from 2 separate providers among the 2 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Smithboro, Illinois (population ~629), covering 2 community water systems serving approximately 8,498 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 Smithboro: D (53/100)
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
Smithboro water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0129 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 |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 8 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 62284 | D | 5 | 0 | Greenville |
All ZIP Codes in Smithboro
- 62284 [D] — 5 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
Updated daily.
CDC Health Data for Smithboro
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 Smithboro
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Smithboro's Housing Stock?
With 64% 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
Viewed through the lens of construction era, Smithboro is predominantly an older city — a median build year of 1951 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Smithboro 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.
Smithboro: Remediation Cost in Perspective
In Smithboro, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Smithboro are relatively low compared to home values. The $300–$1,600 estimated range is a small fraction of median property value. Home values are 29% below the Illinois average.
Protecting Children from Lead in Smithboro
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.
If 64% of the Smithboro inventory comes from before the federal ban on lead-bearing solder — and if utility samples sit at or near 0.015 mg/L — the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Smithboro
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Smithboro's water.
- Check your home's plumbing. With 64% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Smithboro, IL