CARD flags newly reported 640 ppb reading in Area C and asks why some platform samples are missing
Summary
CARD highlighted a previously undisclosed Area C temporary-boring result showing 640 ppb dioxane and questioned why samples tied to temporary platforms/roads and marsh sampling are not visible in submitted reports or datasets.
Roger Roehl flagged a cross section in Gelman's recent submittal that shows a temporary boring (annotated TB9) with a reading of 640 parts per billion. "Below this location, there's 640 parts per billion... 640 parts per billion here," Roehl said, urging EGLE and others to reconcile why that hotspot had not been visible previously and why some platform locations lacked sample records.
Roehl asked why temporary platforms and access roads observed in aerial imagery appeared in maps but lacked corresponding sampling entries in the report. Chris Svoboda responded that the figure suggests temporary borings and that the groundwater-surface-water interface is the zone of interest; he said he had not fully reviewed the document but that EGLE will continue to examine the data.
CARD called for more eyes on anomalies and for an investigation into where sample results for temporary-platform transects are recorded and why some appear missing from public records.
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