Environmental test results unveiled Thursday night show high levels of perfluoroalkyl and polyfluoroalkyl contamination in some areas of La Cieneguilla, especially around the Santa Fe River.

But one question the tests haven't yet settled is precisely where the contamination is from.

At a meeting at the La Cienega Community Center attended by several dozen people, including state Environment Department Cabinet Secretary James Kenney, environmental consulting firm INTERA presented data collected from dozens of samples from La Cieneguilla and La Cienega.

The company tested for the most common forms of perfluoroalkyl and polyfluoroalkyl substances. Of the approximately 1,800 parcels of land in the communities south of Santa Fe, about 1 in 3 are in areas contaminated with PFAS, according to

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