Carbondale, IL: 18 Health Violations — 72/100 (2026)
3 ZIP codes · 10 water systems · Updated 2026-06-03
Public water monitoring in Carbondale shows a safety record well above the IL median — health-based violations are isolated exceptions rather than recurring patterns, the city's systems have stayed compliant across recent reporting cycles, and no cluster of recurring exceedances appears in any single service area.
How Carbondale Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Carbondale Water
- Your city's water systems recorded 48 violations in the past 5 years.
- Average lead level: 0.0014 mg/L.
- Homes built before 1986: 59% — older plumbing may contain lead solder.
- Estimated remediation: $2,433 per household.
- CDC health risk index: 13.15 — above typical levels.
Who Supplies Your Water in Carbondale
10 water systems are tracked federally in Carbondale, IL. The top 3 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.
Overview
We track water quality and home safety data for 3 ZIP codes in Carbondale, Illinois (population ~29,670), covering 10 community water systems serving approximately 55,437 people region-wide.
3 of 3 ZIP codes (100%) have recorded EPA violations. 18 health-based violations documented.
Home Safety Score
Average Home Safety Score for Carbondale: B (72/100)
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
Carbondale water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0014 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 3 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 28 | 3 |
| Stage 1 DBP Rule | Treatment Technique | 12 | 3 |
| Surface Water Treatment Rule | Treatment Technique | 8 | 3 |
| Lead and Copper Rule | Treatment Technique | 8 | 3 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 62901 | C | 16 | 6 | Carbondale |
| 62902 | B | 16 | 6 | Carbondale |
| 62903 | B | 16 | 6 | Carbondale |
All ZIP Codes in Carbondale
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.
Health Outcomes in Carbondale
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
Top Contaminants in Carbondale Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Carbondale
With 59% 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
For residents trying to assess tap water risk in Carbondale, the median build year of 1982 is the starting context. It signals that a majority of homes were constructed before 1986 — the year federal rules prohibited lead solder in new plumbing — and that a significant share likely predates 1970, when lead pipes were still a common choice for residential service connections. Neither risk tier is rare in this housing inventory.
Over half of homes in Carbondale 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.
Cost Context: What Remediation Means for Carbondale Homeowners
Across the Carbondale housing market, the estimated remediation share lands in a middle tier — not a minor footnote, but not a prohibitive burden either; the cost-to-value ratio reflects a moderate equity commitment, one that sits above routine maintenance territory and warrants a dedicated line in the household budget.
Remediation costs are moderate relative to home values in Carbondale. The estimated $1,300–$4,467 range is manageable for most homeowners but still worth budgeting for. Home values are 11% below the Illinois average.
Lead Exposure Risk for Children in Carbondale
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 59% of the Carbondale 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.
Flood & Climate Risk in Carbondale
FEMA data shows 67% of Carbondale's ZIP codes mapped into designated flood zones, paired with an NFIP record of 51 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Carbondale has a moderate flood history with 51 FEMA claims averaging $111,470 per payout. 67% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$2,433</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Carbondale, IL