ZIP 94615: Oakland, CA Tap Water

ZIP 94615 is in the Oakland, CA area, most likely served by EAST BAY MUD. A ZIP is a postal boundary, not a service area, so confirm your supplier on your water bill.

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What the record shows · CA0110005

Test results for EAST BAY MUD

Results describe the water system, not a specific tap in ZIP 94615. Each bar marks the listed reference for that substance.

Full system record →

above a listed reference: 0
detected, within reference or no limit: 2
aesthetic measure: 1
tested, not detected: 29

Detected · 2 results, farthest from the reference first

PFHxAPerfluorohexanoic acid (PFHxA)
3.5ng/L
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Below the listed reference · EPA UCMR 5 · 2023Evidence
PFBAPerfluorobutanoic acid (PFBA)
5.2ng/L
No federal or state limit; shown for transparency
No federal or state limit · EPA UCMR 5 · 2023Evidence

Aesthetic · no federal health limit

CaCO₃Water hardness

5.1gpg

Moderately hard on the USGS scale · Utility CCR · 2025Evidence

Tested, not detected

Other contaminants tested

29none detected

Below each lab’s reporting limit. A result, not zero, and it covers only what was tested.

Show all 29Hide list

11Cl-PF3OUdS
4:2 FTS
6:2 FTS
8:2 FTS
9Cl-PF3ONS
ADONA
HFPO-DA (GenX)
NEtFOSAA
NFDHA
NMeFOSAA
PFBS
PFDA
PFDoA
PFEESA
PFHpA
PFHpS
PFHxS
PFMBA
PFMPA
PFNA
PFOA
PFOS
PFPeA
PFPeS
PFTA
PFTrDA
PFUnA
Lithium
Lead (90th percentile)

Next step

Go from this record to a decision.

Nothing here is above its listed reference. Lead mostly enters from building plumbing, which this system-level record can’t see.

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Which water system serves ZIP 94615?

The public system on record for ZIP 94615 (Oakland, CA) is EAST BAY MUD. A ZIP is a postal boundary, not a service area. Confirm your supplier on your water bill.

Is the water in ZIP 94615 the same as Oakland's?

ZIP 94615 falls within the Oakland, CA area, but a ZIP code can span more than one utility. Read the serving system's own record for the results that apply to your address.

How do I find the exact water system for ZIP 94615?

Check the utility name on your water bill, or resolve it from your street address with Find My Water. The ZIP-level view lists candidate systems, not a confirmed household match.