ATASCADERO MUTUAL WATER CO

PWSID: CA4010002 · ATASCADERO, CA · Serving 30,618 people

Type: CWSOwner: PSource: GW

Settlement eligible

May qualify for 3M/DuPont settlement funds

Exceeds MCL

One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.

PFOA8.4 ppt(MCL: 4 ppt)

PFOS22.3 ppt(MCL: 4 ppt)

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Exact contamination levels

Upgrade to Pro to see PFOA/PFOS ppt values and MCL comparison charts.

PFAS compounds detected

20.7 ppt

Highest single detection

Highest detection

Pro feature

2023-05-30

Latest sample date

complete

Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5) · 1000 compounds tested

Contaminant	Result (ppt)	MCL (ppt)	Status	Sample date
6:2 FTS	ND	—	Below MRL	2023-04-19
PFMBA	ND	—	Below MRL	2023-10-11

998 more results hidden