San Antonio, FL: 32 Violations — 81/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
Throughout San Antonio and across its water systems, EPA compliance data for FL shows above-average performance — violations are minimal, none of the tracked systems have recorded repeated MCL exceedances in recent cycles, and the safety picture has held steady across multiple reporting periods.
How San Antonio Compares
Data: EPA SDWIS Last verified: 2026-06-03
San Antonio Water: The Quick Version
- Your city's water systems recorded 32 violations in the past 5 years.
- Average lead level: 0.0045 mg/L.
- Homes built before 1986: 20% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 13.42 — above typical levels.
Water Systems Serving San Antonio
In San Antonio, FL, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 5 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in San Antonio, Florida (population ~6,415), covering 5 community water systems serving approximately 219,755 people region-wide.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for San Antonio: B (81/100)
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
San Antonio water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0045 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 |
|---|---|---|---|
| Total Coliform | Microbiological | 24 | 1 |
| Consumer Confidence Report Rule | Reporting | 22 | 1 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 6 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 6 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 33576 | B | 32 | 0 | San Antonio Water Department-city of |
All ZIP Codes in San Antonio
- 33576 [B] — 32 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 San Antonio
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 San Antonio
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is San Antonio'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
San Antonio has a newer housing profile — median build year 2008, placing most homes after the 1986 lead-solder ban.
Most homes in San Antonio 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.
San Antonio: Remediation Cost in Perspective
Property equity in San Antonio runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in San Antonio are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 2% below the Florida average.
Protecting Children from Lead in San Antonio
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.
Where pre-rule stock represents a smaller fraction of the inventory — 20% across San Antonio — the structural drivers of household exposure run thinner. Aggregate readings under the federal benchmark reinforce that picture, with one-home draws remaining the only direct measurement for a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for San Antonio
NFIP records stretching across multiple decades show San Antonio accumulating 6 claims and carrying 100% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.
San Antonio has a moderate flood history with 6 FEMA claims averaging $20,225 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>$2,400</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 San Antonio, FL