Home hazard report for 77532 — Crosby, TX
ZIP 77532 is served by Crosby MUD: 1 violation since 2016, latest lead result 4.4 ppb, PFAS not tested. Harris County is in EPA radon zone 3.
Health-based violations since 2016: Interim Enhanced Surface Water Treatment Rule. All are listed as resolved.
90th-percentile lead in the latest round (Jan 2026). Lead comes mostly from household plumbing and service lines, so individual homes can be higher.
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
FEMA’s overall natural-hazard risk for this census tract, relative to the rest of the U.S.
The nearest active Superfund site is 3.8 miles away.
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Where ZIP 77532 is
Dashed: ZIP area · blue: utility service area · scroll or pinch to zoomDrinking water: Crosby MUD
Health-based violations
| Contaminant or rule | Health-based violations since 2016 |
|---|---|
| Interim Enhanced Surface Water Treatment Rule | 1 |
A health-based violation means a contaminant exceeded its legal limit (MCL) or a required treatment technique was not met, as reported by the state to EPA’s SDWIS. All are listed as resolved or archived; the latest began Oct 2025.
Other systems overlapping this ZIP: Harris County MUD 50, Harris County Fwsd 58, Heathergate Estates.
Lead
90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.
PFAS (“forever chemicals”)
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).
Radon in Harris County
EPA radon zone 3 — low potential. Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
Radon is a colorless, odorless radioactive gas from soil and rock, and the leading cause of lung cancer among non-smokers. EPA recommends fixing a home at 4 pCi/L or above and considering it from 2 pCi/L. A short-term test kit costs about $15–30. How radon zones work →
Natural hazard risk
FEMA rates the overall natural-hazard risk of this neighborhood (census tract) as Relatively Low, with relatively low social vulnerability and very low community resilience.
FEMA National Risk Index (December 2025): expected annual losses from each hazard combined with social vulnerability and community resilience, rated relative to all U.S. census tracts. Hazards not listed are not applicable here. It describes the area, not a single building; flood insurance maps (FEMA FIRMs) decide flood-insurance requirements.
Live conditions: river gauges and flood levels · tornado warnings · wildfire detections · earthquakes — our sister maps, updated from NOAA, USGS and NASA every few minutes.
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| French, Ltd. Crosby, Texas · EPA ID TXD980514814 | Active (final NPL) | 3.8 mi |
| Sikes Disposal Pits Crosby, Texas · EPA ID TXD980513956 | Active (final NPL) | 4.0 mi |
| Highlands Acid Pit Highlands, Texas · EPA ID TXD980514996 | Active (final NPL) | 8.3 mi |
| San Jacinto River Waste Pits Channelview, Texas · EPA ID TXN000606611 | Active (final NPL) | 9.6 mi |
EPA Superfund National Priorities List (NPL): the country’s most serious known hazardous-waste sites, each with an EPA cleanup record (linked). Distance is measured from the ZIP center to the site’s reference point; being near a site does not by itself mean exposure — EPA site pages describe what was found and how it is being cleaned up.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions about 77532
Who supplies drinking water to ZIP 77532?
Crosby MUD (EPA ID TX1010118), a surface water (rivers, lakes) system serving about 5,130 people.
Is there lead in Crosby, TX tap water?
The utility’s latest 90th-percentile lead result (Jan 2026) was 4.4 ppb; EPA’s action level is 15 ppb, falling to 10 ppb from 2027. Lead mostly comes from service lines and home plumbing, so the only way to know your tap is to test it.
Does Crosby, TX water have PFAS?
This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).
Has the water system in 77532 had violations?
Health-based violations since 2016: Interim Enhanced Surface Water Treatment Rule. All are listed as resolved.
What natural hazards affect ZIP 77532?
FEMA’s National Risk Index rates the overall natural-hazard risk here as Relatively Low; the highest-rated hazards are tornado (relatively high), cold wave (relatively moderate), heat wave (relatively moderate).
Are there Superfund sites near 77532?
The nearest active Superfund site is 3.8 miles away. Sites within 10 miles: French, Ltd. (3.8 mi, Active (final NPL)); Sikes Disposal Pits (4.0 mi, Active (final NPL)); Highlands Acid Pit (8.3 mi, Active (final NPL)).
Is radon a problem in Harris County?
Harris County is in EPA radon zone 3 (low potential). Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.