Winchester, IL: 3 Health Violations — 62/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
Although much of Winchester meets baseline drinking water standards, some IL-tracked service areas show violations that merit a closer look — particularly for older housing stock.
How Winchester Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Winchester Residents
- Your city's water systems recorded 5 violations in the past 5 years.
- Average lead level: 0.0025 mg/L.
- Homes built before 1986: 76% — older plumbing may contain lead solder.
- Estimated remediation: $3,500 per household.
- CDC health risk index: 14.1 — above typical levels.
Winchester's Water Providers
At present, 3 utilities serve the bulk of Winchester, IL's residential water connections out of 5 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 1 ZIP code in Winchester, Illinois (population ~2,944), covering 5 community water systems serving approximately 6,487 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 3 health-based violations documented.
Home Safety Score
Average Home Safety Score for Winchester: C (62/100)
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
Winchester water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0025 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 62694 | C | 5 | 3 | Smg Water Coop |
All ZIP Codes in Winchester
- 62694 [C] — 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.
Winchester Community Health Snapshot
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
What's in Winchester's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Winchester Infrastructure Age
With 76% 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
When a city's housing median build year is 1969, as in Winchester, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Winchester 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.
How Remediation Costs Compare in Winchester
What does the elevated remediation share mean for Winchester homeowners financially? A serious commitment — one that calls for structured planning rather than an ad-hoc response.
At 3.2% of home value, remediation costs in Winchester represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $2,200–$5,600. Home values here are 41% below the Illinois average.
Winchester: Lead Risk & Vulnerable Populations
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 76% of the Winchester inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Winchester: Flood History & Water Damage Risk
Flood risk in Winchester occupies the middle ground: 13 NFIP claims and 100% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
Winchester has a moderate flood history with 13 FEMA claims averaging $7,576 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>$3,500</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.
What You Can Do in Winchester
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Haloacetic Acids (HAA5) can reduce the most common contaminant found in Winchester's water.
- Check your home's plumbing. With 76% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Winchester, IL