Bay Saint Louis, MS: 17 Violations - Home Safety 93/100
2 ZIP codes · 5 water systems · Updated
ZipCheckup grade for Bay Saint Louis: A.
The model grade is high, but the records on this page include findings worth reviewing.
Your top priority: match a filter's certification to the violations (5 health-based violations). NSF certified filters →
Tap water system records for Bay Saint Louis, MS support a high grade on this site; review your own system's entries for specifics.
How Bay Saint Louis Compares
Data: EPA SDWIS
Bay Saint Louis Water: The Quick Version
- Your city's water systems recorded 17 violations since 2021.
- Average of reported 90th-percentile lead results: 0.009 mg/L.
- Estimated remediation: $600 per household.
- Health risk index (ZipCheckup composite of CDC data): 14.82.
Water Systems Serving Bay Saint Louis
When a city is linked to 5 water systems, as Bay Saint Louis, MS is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.
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Overview
We track home safety data for 2 ZIP codes in Bay Saint Louis, Mississippi, covering 5 community water systems serving approximately 15,471 people. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 5 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Bay Saint Louis: A (93/100)
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
Bay Saint Louis water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0090 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
2 of 2 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 |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 10 | 1 |
| Public Notice Rule | Reporting | 8 | 1 |
| Chlorine | Disinfectant | 8 | 1 |
| Revised Total Coliform Rule | Microbiological | 6 | 1 |
| Consumer Confidence Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 39520 | A | 17 | 5 | City of Bay St Louis |
All ZIP Codes in Bay Saint Louis
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 Bay Saint Louis
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 Bay Saint Louis
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Bay Saint Louis: Remediation Cost in Perspective
Low tier for Bay Saint Louis: remediation estimated at up to 1% of what homes are worth.
Estimated remediation costs in Bay Saint Louis 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 59% above the Mississippi average.
Protecting Children from Lead in Bay Saint Louis
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.
Available area-level lead records for Bay Saint Louis do not determine the lead level at an individual tap. 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.
Historical Flood-Claim Evidence for Bay Saint Louis
Historical NFIP data for Bay Saint Louis contains 6,058 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $72,564. Among ZIP codes with claim records, 100% 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 Bay Saint Louis, MS