Seminole, FL Water Safety: 47/100 (2026)
4 ZIP codes · 3 water systems · Updated 2026-06-03
In recent EPA cycles, Seminole shows a persistent below-average water quality pattern within FL — documented violations span multiple service areas and have appeared consistently across reporting periods.
How Seminole Compares
Data: EPA SDWIS Last verified: 2026-06-03
Seminole Water: The Quick Version
- Homes built before 1986: 74% — older plumbing may contain lead solder.
- Estimated remediation: $1,775 per household.
- CDC health risk index: 13.51 — above typical levels.
Water Systems Serving Seminole
Residential water in Seminole, FL is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 3 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 4 ZIP codes in Seminole, Florida (population ~54,415), covering 3 community water systems serving approximately 905,271 people region-wide.
No EPA violations recorded across any ZIP codes in Seminole — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Seminole: D (47/100)
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
Seminole water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Seminole
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 4 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 33772 | D | PINELLAS COUNTY UTILITIES | 506,353 |
| 33775 | D | PINELLAS COUNTY UTILITIES | 506,353 |
| 33776 | D | PINELLAS COUNTY UTILITIES | 506,353 |
| 33777 | D | PINELLAS COUNTY UTILITIES | 506,353 |
All ZIP Codes in Seminole
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 Seminole
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
How Old Is Seminole's Housing Stock?
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
While newer cities carry lower aggregate plumbing risk from lead-era construction, Seminole sits firmly in the older category. The median build year of 1973 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing — and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.
Over half of homes in Seminole 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.
Seminole: Remediation Cost in Perspective
In Seminole, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in Seminole are relatively low compared to home values. The $950–$2,875 estimated range is a small fraction of median property value. Home values are 3% below the Florida average.
Protecting Children from Lead in Seminole
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.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 74% of Seminole stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Seminole
Seminole's NFIP record reflects high flood exposure — 871 claims spanning a long history of significant events, with 75% of ZIP codes in FEMA-designated zones. High flood frequency increases the probability of water quality disruptions at each point in the supply chain: treatment facilities, transmission infrastructure, and private wells all face elevated stress risk when flooding is a recurring feature rather than a rare exception.
Seminole has a significant flood history with 871 FEMA flood insurance claims on record, averaging $52,782 per claim. With 75% 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>$1,775</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.
What You Can Do in Seminole
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 74% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Seminole, FL