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Decreasing Concentrations

In the extraction well and other monitoring wells immediately downgradient from it, decreasing concentrations trends of 1,4-dioxane are evident.

1,4-dioxane concentrations at EW-1 (Extraction Well) have decreased significantly since pumping operations began in 2017.

Monitoring well SD42A has had some variability in 1,4-dioxane concentrations since the start of pumping but shows an overall downward trend.

Monitoring Well  SD44 concentrations of 1,4-Dioxane have decreased significantly since the start of pumping in 2017.