Johnston City, IL - Home Safety Score unavailable
1 ZIP code · 5 water systems · Updated
Data: EPA SDWIS
Key Facts for Johnston City Residents
- Your city's water systems recorded 22 violations in the past 5 years.
- Average lead level: 0.01 mg/L.
- Homes built before 1986: 74% - older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 14.02 - above typical levels.
Johnston City's Water Providers
Water delivery in Johnston City, IL is handled by 3 utilities rather than a single system - drawn from 5 providers in federal records, each filing its own compliance reports and setting its own rates.
Overview
We track home safety data for 1 ZIP code in Johnston City, Illinois (population ~5,381), covering 5 community water systems serving approximately 37,124 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. 2 health-based violations appear in the available health breakdown.
Water Sources
Johnston City water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0100 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 |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 10 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 10 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 8 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 6 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 62951 | — | 22 | 2 | Johnston City |
All ZIP Codes in Johnston City
- 62951 - 22 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.
Johnston City 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 Johnston City's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Johnston City Infrastructure Age
With 74% 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 more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Johnston City's median build year of 1964 places it squarely in that category.
Over half of homes in Johnston City 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 Johnston City
In Johnston City, the remediation-to-property-value ratio is elevated enough that homeowners who identify documented issues early have an advantage - understanding the scope, sequencing by urgency, and phasing the work against household budget capacity are the practical levers that determine whether remediation feels manageable or overwhelming at this equity tier.
At 2.7% of home value, remediation costs in Johnston City represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,250–$4,000. Home values here are 51% below the Illinois average.
Johnston City: 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.
Routinely in Johnston City, where 74% of housing predates the solder ban and aggregate utility readings hover near the federal threshold, a faucet-level draw functions as a standard household step for families with small kids.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Johnston City: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Johnston City contains 10 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $16,860. 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>$2,400</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 Johnston City, IL