PFAS in Oakland, CA Drinking Water
PFAS data for Oakland, California · 425,492 residents · 26 ZIP codes
ZipCheckup's reading of PFAS in Oakland, California: the highest detected level is 0.0052 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.
Water monitoring in Oakland, California has logged PFAS at detectable levels in recent sampling cycles.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13
PFAS in Oakland Tap Water
PFAS has been detected in Oakland, California drinking water at a maximum level of 0.0052 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 425,492 residents across 26 ZIP codes in Oakland.
Oakland's overall water quality grade is B (76/100).
Is PFAS in Oakland Water Safe?
PFAS was detected in Oakland water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or granular activated carbon filter can reduce pfas levels further.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 94601 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94602 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94603 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94605 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94606 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94607 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94609 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94610 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94611 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94612 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94613 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94618 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94619 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
| 94621 | 2 detections | 4 ppt (PFOA/PFOS individually) | Not comparable |
Average pfas level across Oakland: 2 ppt
Health Effects of PFAS
- Increased risk of kidney and testicular cancer
- Thyroid disease and immune system suppression
- Reproductive problems and reduced fertility
- Elevated cholesterol and liver effects
- Developmental effects in infants and children
Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).
How PFAS Gets Into Drinking Water
- Firefighting foam (AFFF) used at military bases and airports
- Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
- Wastewater treatment plants that receive industrial discharge
- Landfill leachate from PFAS-containing consumer products
What to Do About PFAS in Oakland Water
- Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
- Granular activated carbon (GAC) filters remove some PFAS compounds
- Look for NSF 53 or NSF 58 certification specifically tested for PFAS
- Pitcher filters with activated carbon provide partial reduction
Look for filters certified under NSF 53 / NSF 58 for pfas removal.