University of Delaware
delware environmental institute

News Journal: Delaware well tainted with exotic toxin linked to Superfund site

A hard-to-remove toxic chemical that surfaced in a deep new Artesian Water Co. well south of New Castle has heated up debate over financial responsibility for fouled public water supplies and the effectiveness of a more-than-30-year Superfund cleanup effort. State and federal officials say they are confident the high levels of the likely carcinogen 1,4 dioxane, found in an Artesian well under Llangollen Estates, escaped from the Delaware Sand & Gravel Landfill federal Superfund site, nearly a mile to the north off Grantham Lane. Artesian shut down the well before it went into regular use, but officials acknowledged Monday that lower levels of the same chemical were detected last year in other wells that are part of the utility’s large regional supply complex around Llangollen Boulevard.