Los Fresnos, TX: 1 Health Violation - Home Safety 74/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Los Fresnos: B.
This ZIP looks solid, with a few items worth a quick check.
Compared to statewide averages in TX, Los Fresnos scores well - health violations are below the norm and systems generally operate within federal standards.
How Los Fresnos Compares
Data: EPA SDWIS
Key Facts for Los Fresnos Residents
- Your city's water systems recorded 3 violations in the past 5 years.
- Average lead level: 0.0018 mg/L.
- Homes built before 1986: 29% - older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 13.2 - above typical levels.
Los Fresnos's Water Providers
Residential water service in Los Fresnos, TX is divided among 3 separate utilities, drawn from 5 systems on file with federal regulators.
- B
- B
- B
Overview
We track home safety data for 1 ZIP code in Los Fresnos, Texas (population ~24,927), covering 5 community water systems serving approximately 88,344 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. 1 health-based violation appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Los Fresnos: B (74/100)
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
Los Fresnos water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0018 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
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 4 | 1 |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78566 | B | 3 | 1 | East Rio Hondo Water Supply Corporation |
All ZIP Codes in Los Fresnos
- 78566 [B] - 3 violations ⚠
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.
Los Fresnos Community Health Snapshot
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
What's in Los Fresnos's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Los Fresnos Infrastructure Age
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
Banned from residential plumbing in 1986, lead solder was a near-universal feature of copper plumbing before that cutoff. In Los Fresnos, where the median build year is 2009, the majority of housing falls into the post-ban category - though the older fraction of the stock still carries the residual risk that comes with pre-1986 pipe and solder materials.
Most homes in Los Fresnos were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Los Fresnos
At current valuations, Los Fresnos falls in the moderate remediation-share tier - a level where treating this as a budgeted line item rather than an ad-hoc expense is the practical approach.
Remediation costs are moderate relative to home values in Los Fresnos. The estimated $1,500–$4,100 range is manageable for most homeowners but still worth budgeting for. Home values are 40% below the Texas average.
Los Fresnos: Lead Risk & Vulnerable Populations
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.
Despite citywide averages reading cleanly under the federal action threshold, the way utilities pull samples - from a representative subset rather than door-to-door - leaves room for individual buildings with older interior lines to behave differently than the aggregate suggests. With only 29% of Los Fresnos stock predating the solder rule, that residual subset is small but real, and a draw-test kit gives the only direct read on what comes out of one faucet on a given morning.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Los Fresnos: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Los Fresnos contains 82 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $19,219. Among ZIP codes with claim records, 0% 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 <strong>$2,400</strong> 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 Los Fresnos, TX