Weslaco, TX: 2 Health Violations — 76/100 (2026)
2 ZIP codes · 10 water systems · Updated 2026-06-03
Residents of Weslaco generally live with tap water that beats the TX safety average on key EPA compliance metrics.
How Weslaco Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Weslaco Water
- Your city's water systems recorded 12 violations in the past 5 years.
- Average lead level: 0.0015 mg/L.
- Homes built before 1986: 35% — older plumbing may contain lead solder.
- Estimated remediation: $2,750 per household.
- CDC health risk index: 13.24 — above typical levels.
Who Supplies Your Water in Weslaco
Residential water in Weslaco, TX is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 10 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 2 ZIP codes in Weslaco, Texas (population ~74,342), covering 10 community water systems serving approximately 264,503 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Weslaco: B (76/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Weslaco water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0015 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 2 DBP Rule | Treatment Technique | 6 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 6 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 3 | 2 |
| Lead and Copper Rule | Treatment Technique | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 78596 | B | 6 | 1 | City of Weslaco |
| 78599 | B | 6 | 1 | City of Weslaco |
All ZIP Codes in Weslaco
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
Updated daily.
Health Outcomes in Weslaco
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
Top Contaminants in Weslaco Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Weslaco
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
Development in Weslaco unfolded across multiple decades, and the median build year of 1986 reflects a housing inventory where eras of construction are genuinely mixed — including portions that predate the federal prohibition on lead solder in plumbing.
Most homes in Weslaco 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.
Cost Context: What Remediation Means for Weslaco Homeowners
Cost-to-value data for Weslaco produces a high remediation-share classification — the equity impact here is elevated, placing this market in the tier where financial preparation is a meaningful factor in how homeowners approach documented issues.
At 2.4% of home value, remediation costs in Weslaco represent a significant financial burden. For homes valued near the median, fixing water and safety issues could cost $1,850–$4,250. Home values here are 50% below the Texas average.
Lead Exposure Risk for Children in Weslaco
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.
Wherever 35% of local housing was built before solder rules changed — as is the case in Weslaco — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Weslaco
Across the years captured by NFIP data, Weslaco has logged 990 flood insurance claims and carries 100% of its ZIP codes within FEMA-designated flood zones — a sustained record consistent with high flood exposure. The water quality implications run through several pathways: treatment systems repeatedly stressed by high-volume intake, private wells in FEMA zones facing recurring infiltration risk, and distribution infrastructure that has likely experienced multiple backflow episodes during large events.
Weslaco has a significant flood history with 990 FEMA flood insurance claims on record, averaging $42,603 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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. Flood damage can add significantly to the estimated <strong>$2,750</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Weslaco, TX