Quincy Smelter
... that the Quincy Smelter was part of a Superfund site when it was incorporated into a National Historic Landmark District?
... that the <b id="mwiA"><a href="./Quincy_Smelter" id="mwiQ" rel="mw:WikiLink" title="Quincy Smelter">Quincy Smelter</a></b> was part of a <a href="./Superfund" id="mwig" rel="mw:WikiLink" title="Superfund">Superfund</a> site when it was incorporated into a <a href="./National_Historic_Landmark_District" id="mwiw" rel="mw:WikiLink" title="National Historic Landmark District">National Historic Landmark District</a>?