We offer PFAS analysis of soil and biosolids (dried sludge from wastewater treatment plants, often applied as fertilizer to farms) samples using draft EPA method 1633. This method includes the analysis of 40 different PFAS compounds. First, the PFAS compounds are extracted from the solids. The extract is then treated with various sorbents to remove interfering compounds, and then subjected to Liquid Chromatography/Tandem Mass Spectrometry for analysis.
Get StartedThe table below is our biosolid data from two different wastewater treatment plant sites that were tested by using the draft EPA method 1633. The numbers shown are the concentrations of the PFAS detected using this method. Note that some of the long chain PFAS compounds (10 or more carbon units) are readily detected, even though they are rarely detected in water. The reason for this is because typically, partitioning of PFAS into organic matter increases with chain length.
The graph below is our biosolid and soil data from a farm plot treated with biosolids. We tested soils at two different depths and the biosolids that were applied to the soils for PFAS using draft EPA method 1633. See an example of what we found below.
