Sumner, IL: 1 Violation — 73/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
Within Sumner, safety indicators for tap water remain above the IL median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Sumner Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Sumner Water
- Your city's water systems recorded 1 violation in the past 5 years.
- Homes built before 1986: 68% — older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 14.58 — above typical levels.
Who Supplies Your Water in Sumner
Across Sumner, IL, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently — managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 4 water systems in the area, with these top providers accounting for the majority of residential connections.
Overview
We track water quality and home safety data for 1 ZIP code in Sumner, Illinois, covering 4 community water systems serving approximately 4,184 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Sumner: B (73/100)
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
Sumner water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Sumner
- 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 | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 62466 | B | 1 | 0 | Bridgeport |
All ZIP Codes in Sumner
- 62466 [B] — 1 violation
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 Sumner
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 Sumner Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Sumner
With 68% 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
Pre-1986 plumbing is not a rare legacy case in Sumner — it's the dominant profile. The median build year of 1978 indicates a housing stock where lead-soldered copper joints are a common structural feature of residences across the city.
Over half of homes in Sumner 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 Sumner Homeowners
Given that Sumner falls in the elevated cost-to-value tier, the equity impact of documented remediation is a real financial planning challenge for most homeowners.
At 2.1% of home value, remediation costs in Sumner represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,100–$3,400. Home values here are 47% below the Illinois average.
Lead Exposure Risk for Children in Sumner
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.
Older interior plumbing shapes the local picture: 68% of Sumner homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Sumner
How does Sumner's flood record connect to local water quality? The NFIP documents 8 claims — enough to signal recurring events — and 100% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Sumner has a moderate flood history with 8 FEMA claims averaging $16,695 per payout. 100% 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>$2,100</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 Sumner, IL