Seguin, TX: 6 Health Violations — 82/100 (2026)
2 ZIP codes · 10 water systems · Updated 2026-06-03
EPA compliance records for Seguin 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 Seguin Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Seguin Water
- Your city's water systems recorded 20 violations in the past 5 years.
- Average lead level: 0.0026 mg/L.
- Estimated remediation: $2,700 per household.
- CDC health risk index: 12.03 — above typical levels.
Who Supplies Your Water in Seguin
Throughout Seguin, TX, water comes from one of 3 primary utilities out of 10 total systems — independent providers with different rate structures, infrastructure, and compliance records that vary across the service territory.
Overview
We track water quality and home safety data for 2 ZIP codes in Seguin, Texas (population ~53,449), covering 10 community water systems serving approximately 198,452 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. 6 health-based violations documented.
Home Safety Score
Average Home Safety Score for Seguin: B (82/100)
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
Seguin water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0026 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)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 15 | 2 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 9 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 3 | 2 |
| Revised Total Coliform Rule | Microbiological | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78155 | B | 10 | 3 | Springs Hill Special Utility District |
| 78156 | A | 10 | 3 | Springs Hill Special Utility District |
All ZIP Codes in Seguin
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 Seguin
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 Seguin Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Seguin Homeowners
The cost-to-value ratio in Seguin is in the moderate range — neither dismissible nor alarming, but above the threshold where remediation can be treated as incidental. Most homeowners here are weighing a real equity commitment, and the moderate classification reflects that accurately.
Remediation costs are moderate relative to home values in Seguin. The estimated $1,700–$4,400 range is manageable for most homeowners but still worth budgeting for. Home values are 8% above the Texas average.
Lead Exposure Risk for Children in Seguin
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.
Lead risk in Seguin appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Seguin
Seguin carries a substantial flood exposure profile — 1481 claims filed over the program's long tracking window and 100% of ZIP codes within FEMA flood zones. For water quality, that exposure level means flooding has likely stressed local treatment and distribution infrastructure on multiple occasions, creating periodic windows of elevated contamination risk.
Seguin has a significant flood history with 1,481 FEMA flood insurance claims on record, averaging $44,980 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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>$2,700</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 Seguin, TX