ZipCheckup grade for 78645: B.

This ZIP has a few items worth a quick check.

Your top priority: match a filter's certification to the violations (6 health-based violations). Check your ZIP → NSF certified filters

Health Violations Found
B 75

Leander, TX (78645): PFAS Detected in Mapped Water Systems - 75/100

EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: City of Lago Vista)

Health Violations Found PFAS Detected NFIP Claim History

Health-based violation records by water system:

EPA records for the water systems mapped to 78645 in Leander, TX contain 44 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 6 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score
B 75/100
Water Quality Issues 6 health-based violation records
Lead Risk Below action level 0.0019 mg/L, 90th percentile, sample period ending 2025-12-31
NFIP Claim History Claim records 138 claims
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 6 health-based violations and 38 non-health-based (since 2021).
  • Lead The reported 90th-percentile lead result of 0.0019 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
  • PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
  • Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
  • Flood 138 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
Contaminant Summary
Health Violations
44 violations 6 health-based PFAS detected
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record
B
ZIP-level Home Safety model score: 75 / 100
Home Safety Score higher than 51% of ZIP codes nationwide
5
Water Systems
8,698
People Served
6
Health Violations (since 2021)Median is 0
Surface water
Water Source
0.00186 mg/L
Reported Lead Result
Zone 3
County Radon Potential · Low
$387K
Median Home Value99% above state median ($195K)

Get updates when new water-quality data is available for your area

Free alerts when new EPA data affects ZIP code 78645. No spam - just safety updates.

Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.

Share Your Area Home Safety Score
Share on X Share on Facebook

Tip: You can also screenshot the card above to share it as an image.

See incorrect data? Let us know

Score Breakdown

Overall Home Safety Score: 75/100

This is the published model score. Component and domain values are shown independently; they are not added together on this page.

Canonical components

EPA water compliance
0/100
Observed
PFAS MCL screen
100/100
Observed
EPA radon zone
100/100
Observed
Annual EPA AirData AQI
75/100
Observed

Required domains

Drinking water
50/100
Indoor environment
100/100
Outdoor environment
75/100

Coverage: 4 of 4 components and 3 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) CRITICAL

Your Water System

ZIP code 78645 in Leander, Texas is mapped to the water system City of Lago Vista (EPA ID: TX2270092). This system provides water to approximately 8,698 people from surface water sources.

There are 5 community water systems serving this area.

Lead & Copper in Your Water

The EPA requires water systems to monitor lead and copper levels under the Lead and Copper Rule.

Metal Measured Level EPA Action Level Status Sample Date or Period
Copper Action-level exceedance on record 1.3 mg/L Exceeds action level Not present in ZipCheckup accepted source data
How to read the copper row. EPA's reporting schema defines the copper CU90 code as an action-level exceedance (a system's 90th-percentile copper above the 1.3 mg/L action level), so this row reflects an exceedance on record, not a routine measurement. No copper concentration is shown because no verified unit is available for this value. A system with no copper record has not been shown to be clean: the absence of a recorded exceedance is not a measurement.

Water Systems Serving This Area

System Name EPA ID Population Source
City of Lago Vista TX2270092 8,698 Surface water
Jonestown Water Supply Corporation TX2270011 7,902 Surface water
Travis County Wcid Point Venture TX2270038 2,835 Surface water
Draper Estates Water System TX2270058 123 Surface water
Travis County Municipal Utility District 10 TX2270333 490 Surface water

Other Water Quality Reports in Texas

Nearby Water Quality Reports

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Lago Vista (TX2270092) on EPA.gov.

4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.

📊 EPA Safe Drinking Water · View source →

Compliance History

2021 2022 1 2023 2024 3 2025 2
Health-based (MCL/TT) Other violations

PFAS Contamination Detected

PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 78645.

Detected compounds: PFBA.

Highest measured level: 0.0074 µg/L

Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.

📊 EPA UCMR5 · View source →
Environmental Hazards (11) MODERATE
Home & Infrastructure (7) MODERATE

Area data suggest possible HVAC concerns - talk to a local expert.

Call (844) 439-2761

This is a free service. You will be connected with an independent service provider. We may receive compensation.

Cost & Community (9) HIGH

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Protect Your Home in Leander

Based on local data for ZIP 78645, these services may benefit homeowners in your area.

Based on local data for your area. Use the tools below to explore your options.

Home & Flood Insurance

The ZIP code for this report in Leander has 138 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.

Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote

Check Your Flood Zone (Free)

FEMA flood map lookup - see if your property is in a flood zone

Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)

Roofing Inspection & Repair

Active weather alerts in Texas increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.

Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500

Estimate Your Home Insurance Needs

Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.

Frequently Asked Questions

Is the tap water in 78645 safe to drink?

EPA SDWIS records 44 violations since 2021 across the water systems mapped to ZIP 78645 (primary system: City of Lago Vista), including 6 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.

Where does 78645's water come from?

The recorded water source for City of Lago Vista, a system mapped to ZIP code 78645, is Surface water. This system serves approximately 8,698 people.

How does Leander water compare to the national average?

Leander's Home Safety Score ranks better than 51% of U.S. ZIP codes, and lower than 76% of ZIP codes within Texas.

How can I get my water tested in Leander?

If City of Lago Vista supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.

Is lead a concern in 78645 tap water?

The Lead and Copper Rule record selected for 78645 reports a 90th-percentile lead result of 0.00186 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.

What is the radon risk for 78645?

78645 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Travis County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

Are there PFAS (forever chemicals) in 78645's water?

Yes, PFAS have been detected in samples from water systems mapped to 78645. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.

What does the NFIP claim history show for ZIP 78645?

FEMA records contain 138 flood insurance claims filed in ZIP code 78645; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.

How to cite this page

APA ZipCheckup. (2026). Leander, TX (78645): PFAS Detected in Mapped Water Systems - 75/100. https://zipcheckup.com/report/78645/
BibTeX 
@misc{zipcheckup-report-78645,
  author = {{ZipCheckup}},
  title  = {{Leander, TX (78645): PFAS Detected in Mapped Water Systems - 75/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/78645/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 78645

ZIP Code City, State Distance Grade Violations
78734 Austin, TX 5.6 mi A 2
78732 Austin, TX 6.4 mi B 2
78669 Spicewood, TX 6.6 mi N/A 49
78738 Austin, TX 8.0 mi A 16
78726 Austin, TX 8.1 mi B 2
78613 Cedar Park, TX 9.6 mi N/A 14
78630 Cedar Park, TX 9.6 mi N/A 0
78733 Austin, TX 10.1 mi A 11
78750 Austin, TX 10.3 mi B 1
78730 Austin, TX 10.5 mi B 6

Contaminants Detected in 78645

Learn more about the contaminants found in your water supply:

Overall safety breakdown

Home Safety Score →

Find the right water filter

Water Filter Matcher →

Compare filters, tests & services

Compare My Options →

Compare with another ZIP

Compare Tool →
Coverage: 14/17 risk factors Data sources →
Get alerts for 78645