Johnson City, TX: 22 Violations — 83/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
EPA compliance records for Johnson City tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within TX.
How Johnson City Compares
Data: EPA SDWIS Last verified: 2026-06-03
Johnson City Water: The Quick Version
- Your city's water systems recorded 22 violations in the past 5 years.
- Average lead level: 0.0016 mg/L.
- Homes built before 1986: 38% — older plumbing may contain lead solder.
- Estimated remediation: $2,500 per household.
- CDC health risk index: 13.38 — above typical levels.
Water Systems Serving Johnson City
2 water systems are tracked federally in Johnson City, TX. The top 2 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 1 ZIP code in Johnson City, Texas, covering 2 community water systems serving approximately 3,842 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 Johnson City: B (83/100)
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
Johnson City water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0016 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 14 | 1 |
| Lead and Copper Rule | Treatment Technique | 10 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 8 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 1 |
| Consumer Confidence Report Rule | Reporting | 4 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78636 | B | 22 | 0 | City of Johnson City |
All ZIP Codes in Johnson City
- 78636 [B] — 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
Updated daily.
CDC Health Data for Johnson City
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 Johnson City
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Johnson City's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Some cities skew heavily toward one construction era; Johnson City does not. The median build year of 1995 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk — with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.
Most homes in Johnson City were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Johnson City: Remediation Cost in Perspective
Low proportionality — that's the Johnson City picture when remediation costs are placed against typical home equity.
Remediation costs in Johnson City are relatively low compared to home values. The $1,800–$4,000 estimated range is a small fraction of median property value. Home values are 101% above the Texas average.
Protecting Children from Lead in Johnson City
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 38% of the Johnson City inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Johnson City
FEMA data shows 100% of Johnson City's ZIP codes mapped into designated flood zones, paired with an NFIP record of 4 claims. That footprint places local flood exposure in the range where it warrants attention without rising to high-severity planning territory.
Johnson City has a moderate flood history with 4 FEMA claims averaging $56,374 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>$2,500</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.
Deep Dive Reports
Detailed analysis for Johnson City, TX