Multimedia

USGS scientist Justice Benjamin at groundwater site MW 61 395034074112101 collecting PFAS samples inside a chamber to avoid atmospheric contamination. 

USGS scientist Sarah Collins at Groundwater Observation Well MW 71 401732074022101 Lowering a submersible pump down the well to begin purging 3 casing volumes before sampling collection begins. 

USGS scientist Sarah Collins placing the Fultz submersible pump with Y splitter down the well to begin purging 3 casing volumes before sampling collection begins at well site MW 71 401732074022101. 

USGS Scientist Kate Bowen preforming "clean-hands" ambient groundwater-quality sample collection inside a sealed chamber to prevent atmospheric contamination. 

USGS Scientist Liam Kenefic lowering a calibrated electric tape into the 393104075122201 MW36 Observation well to collect groundwater‑level measurements to verify that the well remains inactive and that current water levels align with historic trends.

USGS Scientist Liam Kenefic checking the Groundwater-level after lowering the sampling pump into the 393104075122201 MW36 Observation well. This reading helps determine that the pump is in the appropriate placement once pumping begins to help ensure the sonde is collecting field parameters have reached stability to determine that sampling can occur.