CITY REPORT TX HEALTH VIOLATIONS: 12

La Coste, TX: 30 Violations - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$123K
Median Home Value
$600
Est. Remediation (0.5% of home value)

What You Should Know About La Coste Water

  • Your city's water systems recorded 30 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0046 mg/L.
  • Homes built before 1986: 38% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 13.12.

Who Supplies Your Water in La Coste

When a city is linked to 5 water systems, as La Coste, TX 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.

Overview

We track home safety data for 1 ZIP code in La Coste, Texas (population ~2,311), covering 5 community water systems serving approximately 2,669,140 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. 12 health-based violations appear in the available health breakdown.

Water Sources

La Coste water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0046 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
Gross Alpha (excl. radon and uranium) Radionuclides 24 1
Public Notice Rule Reporting 20 1
Consumer Confidence Rule Reporting 4 1
Chlorine Disinfectant 4 1
Nitrite Inorganic 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
78039 — 30 12 San Antonio Water System

All ZIP Codes in La Coste

  • 78039 - 30 violations ⚠

Data Sources

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

Health Outcomes in La Coste

9.2%
Asthma (US: 9.8%)
14.4%
Diabetes (US: 10.4%)
16%
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 9.2% ↓
Diabetes 14.4% ↑
Mental Health 16% ↑

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

Top Contaminants in La Coste Water

Gross Alpha (excl. radon and uranium) 24 violations
Radionuclides · EPA regulatory level for the contaminant named above: 15 pCi/L
Public Notice Rule 20 violations
Reporting
Consumer Confidence Rule 4 violations
Reporting

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

Housing & Infrastructure in La Coste

1997
Median Build Year
38%
Built Before 1986
24%
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

When a home in La Coste was built matters for lead because federal rules adopted in 1986 limited how much lead new plumbing could contain; the local median build year is 1997. A median sits in the middle of a range, so some homes are older and some newer, and past repairs may have changed the pipes in either group. A plumber can identify the materials inside a home, and a lab test measures what reaches the tap.

1997
Median Year Built
38%
Pre-1986 (lead solder era; lead paint banned 1978)
24%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (24%) 1970–1986 (14%) Post-1986 (62%)

Most homes in La Coste 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.

Cost Context: What Remediation Means for La Coste Homeowners

Low tier for La Coste: remediation estimated at up to 1% of what homes are worth.

Median Home Value
$122,600
Est. Remediation
$600
Remediation as % of home value 0.5%

Estimated remediation costs in La Coste 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 46% below the Texas average.

Lead Exposure Risk for Children in La Coste

38%
Homes Built Before 1986
0.0046
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.

Historical NFIP Claim Context in La Coste

28
Total FEMA Flood Claims
$25,464
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for La Coste contains 28 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $25,464. 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.

Frequently Asked Questions

How many violations are on record for water systems serving La Coste?
EPA records list 30 EPA violations, including 12 health-based violations for La Coste water systems. These water-system violations are shown for 1 mapped ZIP code.
Does La Coste water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of La Coste is 0.0046 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 many water systems serve La Coste?
Our records map 5 water systems to 1 ZIP code in La Coste. The related population figure in our data is approximately 2,311 people; it is not a count of people served citywide.
How much does it cost to fix water issues in La Coste?
Estimated remediation cost per household in La Coste: $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). La Coste, TX: 30 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/tx/la-coste/
BibTeX
@misc{zipcheckup-cities-tx-la-coste,
  author = {{ZipCheckup}},
  title  = {{La Coste, TX: 30 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/tx/la-coste/}
}

Page version: October 2026.

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