Sebastian, TX: 1 Health Violation — 78/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Water utilities in Sebastian have maintained a consistent compliance record over recent monitoring periods — the city's above-average grade in TX reflects low violation rates and no systemic health concerns flagged in current data.
How Sebastian Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Sebastian Water
- Your city's water systems recorded 6 violations in the past 5 years.
- Homes built before 1986: 47% — older plumbing may contain lead solder.
- Estimated remediation: $2,600 per household.
- CDC health risk index: 14.31 — above typical levels.
Who Supplies Your Water in Sebastian
Water supply in Sebastian, TX follows a divided structure: 2 utilities account for the largest share of residential service out of 2 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in Sebastian, Texas (population ~1,303), covering 2 community water systems serving approximately 173,079 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Sebastian: B (78/100)
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
Sebastian water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Sebastian
- 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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 6 | 1 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Chlorite | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78594 | B | 6 | 1 | Sebastian Municipal Utility District |
All ZIP Codes in Sebastian
- 78594 [B] — 6 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.
Health Outcomes in Sebastian
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 Sebastian Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Sebastian
With 47% 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 a city with a median build year of 1998, Sebastian carries a housing profile that straddles the 1986 federal ban on lead solder in plumbing. Neither predominantly new nor predominantly old, the stock presents a moderate aggregate risk environment — with individual risk varying sharply depending on when and where a specific home was built.
Most homes in Sebastian 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.
Cost Context: What Remediation Means for Sebastian Homeowners
Property values and remediation costs in Sebastian combine to produce a high equity share — the financial burden here is significant.
At 6.9% of home value, remediation costs in Sebastian represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,650–$3,900. Home values here are 83% below the Texas average.
Lead Exposure Risk for Children in Sebastian
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.
Reading the local data together points toward a structural gap that matters more here than in low-exposure communities. 47% of Sebastian stock comes from the pre-rule era, and citywide monitoring either approaches or sits beyond the federal benchmark under Lead and Copper Rule sampling. A baseline kit fits the routine-diligence category, with certified filtration available via retailer networks where confirmed faucet results warrant additional measures.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Sebastian
A moderate NFIP record for Sebastian — 33 insurance claims paired with 100% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Sebastian has a moderate flood history with 33 FEMA claims averaging $24,537 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>$2,600</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 Sebastian, TX