Home hazard report for 95234 — Holt, CA
ZIP 95234 has no mapped public water system — homes here most likely use private wells. San Joaquin is in EPA radon zone 3.
Well water is not tested by any agency — test it yourself.
Predicted average under 2 pCi/L — but any home can have high radon, so EPA still recommends a test.
The nearest active Superfund site is 6.6 miles away.
Active weather alerts
live from the National Weather ServiceChecking the National Weather Service…
Where ZIP 95234 is
scroll or pinch to zoomDrinking water: probably a private well
No community water system’s service area covers the center of ZIP 95234, and no system lists it. In rural areas that usually means private wells. The EPA does not regulate private wells: owners should test once a year for coliform bacteria and nitrate, and every few years for arsenic, lead, uranium and other local concerns. Your county health department can recommend a certified lab.
Radon in San Joaquin
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 →
Superfund sites nearby
| Site | Status | Distance |
|---|---|---|
| McCormick & Baxter Creosoting Co. Stockton, California · EPA ID CAD009106527 | Active (final NPL) | 6.6 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 95234
Does ZIP 95234 have public water?
No community water system service area covers the center of ZIP 95234, and none lists it. Homes here most likely use private wells, which no agency tests — owners should test yearly for bacteria and nitrate, and every few years for arsenic, lead and other local concerns.
Are there Superfund sites near 95234?
The nearest active Superfund site is 6.6 miles away. Sites within 10 miles: McCormick & Baxter Creosoting Co. (6.6 mi, Active (final NPL)).
Is radon a problem in San Joaquin?
San Joaquin 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.