Largo, FL: 3 Health Violations - Home Safety 99/100
6 ZIP codes · 2 water systems · Updated
ZipCheckup grade for Largo: A.
Checked records flag no major concern; missing data is unknown.
Largo, FL carries a grade in ZipCheckup's upper tier; any health-based violations on record should be checked per water system.
How Largo Compares
Data: EPA SDWIS
Water Quality Map: Largo, FL
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of Home Safety grades across Largo.
Largo Water: The Quick Version
- Your city's water systems recorded 22 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0008 mg/L.
- Homes built before 1986: 75% - older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- Health risk index (ZipCheckup composite of CDC data): 13.51.
Water Systems Serving Largo
Counting every public water system linked to Largo, FL in federal data gives 2. The list below keeps the 2 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.
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Overview
We track home safety data for 6 ZIP codes in Largo, Florida (population ~105,903), covering 2 community water systems serving approximately 555,292 people region-wide. The EPA snapshots used for this build directly map water systems to 5 of 6 ZIP codes.
5 of 5 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 3 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Largo: A (99/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Largo water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0008 mg/L (EPA action level: 0.015 mg/L)
- 0 of 5 ZIP codes with known status exceed the EPA lead action level
Radon Risk
6 of 6 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 34 | 5 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 21 | 5 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 18 | 5 |
| Nitrate | Inorganic | 12 | 5 |
| Lead and Copper Rule | Treatment Technique | 7 | 5 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 33773 | A | 22 | 3 | Pinellas County Utilities |
| 33770 | A | 14 | 0 | Pinellas County Utilities |
| 33771 | A | 14 | 0 | Pinellas County Utilities |
| 33774 | A | 14 | 0 | Pinellas County Utilities |
| 33778 | A | 14 | 0 | Pinellas County Utilities |
All ZIP Codes in Largo
- 33770 [A] - 14 violations
- 33771 [A] - 14 violations
- 33773 [A] - 22 violations ⚠
- 33774 [A] - 14 violations
- 33778 [A] - 14 violations
- 33779
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
CDC Health Data for Largo
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Largo
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Largo's Housing Stock?
With 75% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Some homes in Largo predate the 1986 federal restrictions on lead in new pipe and solder, so a tap test is a reasonable step for older homes; median build year: 1973.
Over half of homes in Largo were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Largo: Remediation Cost in Perspective
Estimated remediation for Largo is a small fraction of median property value - one percent or less - though the ratio does not describe any single household.
Estimated remediation costs in Largo can be compared with local home values. The $300–$1,500 estimated range can be set against the median property value; actual costs vary by home. Home values are 21% below the Florida average.
Protecting Children from Lead in Largo
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Largo
Historical NFIP data for Largo contains 957 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $109,753. Among ZIP codes with claim records, 80% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
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. The $600 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Largo, FL