Willis, TX: 7 Health Violations - Home Safety 78/100
2 ZIP codes · 9 water systems · Updated
ZipCheckup grade for Willis: B.
This ZIP has a few items worth a quick check.
Your top priority: match a filter's certification to the violations (7 health-based violations). NSF certified filters →
In the dataset behind this page, Willis, TX receives one of the two highest grades; read the compliance history system by system for details.
How Willis Compares
Data: EPA SDWIS
What You Should Know About Willis Water
- Your city's water systems recorded 69 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0048 mg/L.
- Homes built before 1986: 30% - older plumbing may contain lead solder.
- Estimated remediation: $600 per household.
- Health risk index (ZipCheckup composite of CDC data): 11.46.
Who Supplies Your Water in Willis
Service in Willis, TX can differ by address: 9 water systems are tied to the area in federal records, and the 3 largest are listed with their violation records.
- B
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Overview
We track home safety data for 2 ZIP codes in Willis, Texas (population ~37,396), covering 9 community water systems serving approximately 144,091 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 2 ZIP codes.
2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. 7 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Willis: B (78/100)
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
Willis water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0048 mg/L (EPA action level: 0.015 mg/L)
- 0 of 2 ZIP codes 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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 17 | 2 |
| Lead and Copper Rule Revisions | Treatment Technique | 15 | 2 |
| Public Notice Rule | Reporting | 14 | 2 |
| Consumer Confidence Rule | Reporting | 10 | 2 |
| Revised Total Coliform Rule | Microbiological | 7 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 77378 | B | 53 | 5 | City of Willis |
| 77318 | B | 47 | 4 | Point Aquarius Municipal Utility District |
All ZIP Codes in Willis
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.
Health Outcomes in Willis
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
Top Contaminants in Willis Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Willis
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 Willis 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 1994. 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.
Most homes in Willis 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 Willis Homeowners
Compared with typical property prices, the remediation estimate for Willis is small in percentage terms - at or under one percent.
Estimated remediation costs in Willis 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 27% above the Texas average.
Lead Exposure Risk for Children in Willis
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.
No safe blood lead level in children has been identified, according to CDC, so an area average under 0.010 mg/L does not rule out exposure at home. In Willis, 30% of homes were 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 Willis
Historical NFIP data for Willis contains 211 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $54,047. 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 $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 Willis, TX