CITY REPORT LA HEALTH VIOLATIONS: 13

Grosse Tete, LA: 13 Health Violations - Home Safety 91/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Grosse Tete: 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 (13 health-based violations). NSF certified filters →

In the dataset behind this page, Grosse Tete, LA receives one of the two highest grades; read the compliance history system by system for details.

How Grosse Tete Compares

Grosse Tete91/100
Louisiana avg92/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
A · 91
Avg Safety Score
Zone 3
County Radon Potential (Low)
$126K
Median Home Value
$600
Est. Remediation (0.5% of home value)

Key Facts for Grosse Tete Residents

  • Your city's water systems recorded 15 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0004 mg/L.
  • Homes built before 1986: 34% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 15.72.

Grosse Tete's Water Providers

Listed supplier for Grosse Tete, LA: one system, of 1 on federal record.

Overview

We track home safety data for 1 ZIP code in Grosse Tete, Louisiana (population ~883), covering 1 community water system serving approximately 6,489 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 13 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Grosse Tete: A (91/100)

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

Grosse Tete water systems draw from: Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0004 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

1 of 1 ZIP records with known zones is 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
Interim Enhanced Surface Water Treatment Rule Treatment Technique 12 1
Haloacetic Acids (HAA5) Disinfection Byproducts 10 1
Chlorite Disinfection Byproducts 4 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
70740 A 15 13 Intracoastal Water System West

All ZIP Codes in Grosse Tete

  • 70740 [A] - 15 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Grosse Tete Community Health Snapshot

10.6%
Asthma (US: 9.8%)
16.5%
Diabetes (US: 10.4%)
19.8%
Poor Mental Health (US: 14.8%)

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

Asthma 10.6% ↑
Diabetes 16.5% ↑
Mental Health 19.8% ↑

Vertical line = national average. ■ Above national · ■ Below national

What's in Grosse Tete's Water?

Interim Enhanced Surface Water Treatment Rule 12 violations
Treatment Technique
Haloacetic Acids (HAA5) 10 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Chlorite 4 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 1 mg/L
Anemia in infants and young children

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Grosse Tete Infrastructure Age

1992
Median Build Year
34%
Built Before 1986
14%
Built Before 1970
Copper
Likely Pipe Material

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

Grosse Tete's housing spans eras before and after 1986; its median build year is 1992.

1992
Median Year Built
34%
Pre-1986 (lead solder era; lead paint banned 1978)
14%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (14%) 1970–1986 (20%) Post-1986 (66%)

Most homes in Grosse Tete were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Grosse Tete

This section sets two area figures side by side for Grosse Tete: the median home value and an estimated remediation cost. Here the estimate equals no more than 1% of that value, which places the city in the low tier; it is an area estimate, and the cost for any one property can be higher or lower.

Median Home Value
$126,400
Est. Remediation
$600
Remediation as % of home value 0.5%

Estimated remediation costs in Grosse Tete 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 26% below the Louisiana average.

Grosse Tete: Lead Risk & Vulnerable Populations

34%
Homes Built Before 1986
0.0004
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

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.

Grosse Tete: NFIP Claim Records and Water-Quality Context

6
Total FEMA Flood Claims
$3,455
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Grosse Tete contains 6 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $3,455. 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 Grosse Tete, LA

Frequently Asked Questions

What does the Home Safety Score mean for Grosse Tete, LA?
Grosse Tete has an average Home Safety Score of 91/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 15 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Grosse Tete?
EPA records list 15 EPA violations, including 13 health-based violations for Grosse Tete water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Grosse Tete water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Grosse Tete is 0.0004 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Grosse Tete compare to Louisiana average?
Grosse Tete has an average Home Safety Score of 91/100, which is below the Louisiana state average of 92/100 for the same model series.
How many water systems serve Grosse Tete?
Our records map 1 water system to 1 ZIP code in Grosse Tete. The related population figure in our data is approximately 883 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Grosse Tete?
Estimated remediation cost per household in Grosse Tete: $600; modeled range $300 to $1,500. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Grosse Tete, LA: 13 Health Violations - Home Safety 91/100. https://zipcheckup.com/cities/la/grosse-tete/
BibTeX 
@misc{zipcheckup-cities-la-grosse-tete,
  author = {{ZipCheckup}},
  title  = {{Grosse Tete, LA: 13 Health Violations - Home Safety 91/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/la/grosse-tete/}
}

Page version: October 2026.

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