Arsenic in Lompoc, CA Drinking Water
Arsenic data for Lompoc, California · 59,522 residents · 2 ZIP codes
ZipCheckup's reading of Arsenic in Lompoc, California: Arsenic carries a high health-risk designation.
Not every city shows Arsenic in its water data; in Lompoc, California, federal sampling has confirmed its presence at detectable levels in at least one recent reporting cycle.
Data: EPA SDWIS, CCR Reports, ECHO
Arsenic in Lompoc Tap Water
Lompoc, California has 16 EPA violations related to arsenic in drinking water.
This analysis covers 59,522 residents across 2 ZIP codes in Lompoc.
Is Arsenic in Lompoc Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis filter certified under NSF 53 / NSF 58 and testing your water independently.
EPA Violations for Arsenic in Lompoc
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2022-11-29 | Arsenic (Known) | Known | 93436 |
| 2022-11-29 | Arsenic (Known) | Known | 93437 |
| 2022-10-01 | Arsenic (Resolved) | Resolved | 93436 |
| 2022-10-01 | Arsenic (Resolved) | Resolved | 93437 |
| 2022-07-01 | Arsenic (Resolved) | Resolved | 93436 |
| 2022-07-01 | Arsenic (Resolved) | Resolved | 93437 |
| 2022-04-01 | Arsenic (Resolved) | Resolved | 93436 |
| 2022-04-01 | Arsenic (Resolved) | Resolved | 93437 |
| 2022-01-01 | Arsenic (Known) | Known | 93436 |
| 2022-01-01 | Arsenic (Known) | Known | 93437 |
| 2021-10-01 | Arsenic (Known) | Known | 93436 |
| 2021-10-01 | Arsenic (Known) | Known | 93437 |
| 2021-07-01 | Arsenic (Known) | Known | 93436 |
| 2021-07-01 | Arsenic (Known) | Known | 93437 |
| 2021-04-01 | Arsenic (Known) | Known | 93436 |
| 2021-04-01 | Arsenic (Known) | Known | 93437 |
Health Effects of Arsenic
- Increased risk of skin, bladder, lung, and kidney cancer
- Cardiovascular disease and type 2 diabetes
- Skin changes (darkening, thickening, lesions)
- Developmental effects in children exposed in utero
Health risk severity: High. Governed by the Arsenic Rule (2006).
How Arsenic Gets Into Drinking Water
- Natural deposits in rock and soil (especially in western U.S.)
- Runoff from orchards and glass/electronics production
- Historical use of arsenic-based pesticides
- Well water in areas with arsenic-rich geology
What to Do About Arsenic in Lompoc Water
- Install a reverse osmosis (RO) system certified under NSF 58
- Adsorptive media filters (iron-based) can also reduce arsenic
- Have well water tested if on a private supply
- Boiling water does NOT remove arsenic — it concentrates it
Look for filters certified under NSF 53 / NSF 58 for arsenic removal.