RIO ALTO WATER DISTRICT

PWSID: CA5210005 · COTTONWOOD, CA · Serving 3,329 people

Type: CWSOwner: LSource: GW

Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

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

Exact contamination levels

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PFAS compounds detected

N/A ppt

Highest single detection

Highest detection

Pro feature

N/A

Latest sample date

pending

Data completeness

All PFAS detection results

Source: EPA UCMR5 (california_gama) · 48 compounds tested

Contaminant	Result (ppt)	MCL (ppt)	Status	Sample date
PFOA	2	10	Below MRL	2024-10-22
PFOS	2	40	Below MRL	2024-10-22

46 more results hidden