Tomball, TX: PFAS Found in Water - Home Safety 77/100
2 ZIP codes · 10 water systems · Updated
ZipCheckup grade for Tomball: B.
This ZIP looks solid, with a few items worth a quick check.
Your top priority: consider a certified water filter (10 health violations on record). NSF certified filters →
Tap water monitoring data for Tomball shows a consistently clean picture in TX - few violations on record, compliance well above the median.
How Tomball Compares
Data: EPA SDWIS
What You Should Know About Tomball Water
- Your city's water systems recorded 100 violations in the past 5 years.
- Average lead level: 0.0041 mg/L.
- Homes built before 1986: 17% - older plumbing may contain lead solder.
- Estimated remediation: $2,650 per household.
- CDC health risk index: 11.98.
Who Supplies Your Water in Tomball
Across Tomball, TX, residential water comes from 3 primary utilities rather than a single consolidated provider. Each system operates independently - managing its own distribution infrastructure, rate schedules, and EPA compliance filings. Federal records track 10 water systems in the area, with these top providers accounting for the majority of residential connections.
- B
- B
- B
Overview
We track home safety data for 2 ZIP codes in Tomball, Texas, covering 10 community water systems serving approximately 110,352 people. 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. 10 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Tomball: B (77/100)
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
Tomball water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0041 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
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 |
|---|---|---|---|
| Lead and Copper Rule | Treatment Technique | 35 | 2 |
| Stage 2 DBP Rule | Treatment Technique | 23 | 2 |
| Surface Water Treatment Rule | Treatment Technique | 19 | 2 |
| Stage 1 DBP Rule | Treatment Technique | 17 | 2 |
| Consumer Confidence Report Rule | Reporting | 15 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 77375 | B | 82 | 6 | City of Tomball |
| 77377 | B | 21 | 4 | Northwest Harris County Municipal Utility District 5 |
All ZIP Codes in Tomball
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 Tomball
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 Tomball Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Tomball
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
Housing age matters for water quality because lead solder was widely used in plumbing until the 1986 federal ban. Tomball's median build year of 2005 suggests a majority of homes were constructed under the newer standard - a meaningful factor when assessing household-level lead risk from tap water.
Most homes in Tomball 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 Tomball Homeowners
At current valuations, Tomball sits in the low remediation-share tier - the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Tomball are relatively low compared to home values. The $1,800–$4,050 estimated range is a small fraction of median property value. Home values are 54% above the Texas average.
Lead Exposure Risk for Children in Tomball
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.
Confirming what flows from a specific faucet still requires a one-home draw, even where Tomball averages stay clean and the pre-rule housing share holds at 17%.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Tomball
Historical NFIP data for Tomball contains 1,048 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $74,148. 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>$2,650</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 Tomball, TX