(January 14, 2020, 1:45 PM EST) -- GEORGETOWN, Del. — A Delaware couple on Jan. 13 filed a brief in state court contending that it should certify a class of plaintiffs who have sued a chicken processing plant that the couple says has contaminated the local groundwater with wastewater (Gary and Anna-Marie Cuppels, et al. v. Mountaire Corporation, et al., No. S18C-06-009 ESB, Del. Super., Sussex Co.)....