Data field · Geographic area · Parcel

PFAS sampling result indicator

Whether a location has a reported PFAS ambient-sampling result in the source-defined monitoring corpus, regardless of detection outcome.

Who carries it ↓

1Data sources

1Providers

1Free to access

Sources that carry it

1 source

U.S. Environmental Protection Agency

PFAS WQP Results

The Water Quality Portal's PFAS ambient sampling results (joint USGS/EPA/state/tribal warehouse), filtered via WQP's own characteristicType=PFAS preset. 387,690 sampling results across 9,778 monitoring locations nationwide, joined with Station data for coordinates. 4 of 155 distinct analytes found not to be genuine PFAS and explicitly forced to ds_PFAS_WQP=false.

Free Full file National US 1 field

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