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.