A Seattle lawyer accused of holding up DuPont’s $1.19 billion water contamination settlement fired back on Wednesday, insisting that class counsel’s sanctions motion was an “intimidation tactic” based on a “fantastical conspiracy theory.”

Jeff Kray, of Marten Law, said class counsel failed to meet with him before filing a March 15 sanctions motion against him and two in-house attorneys for his client, the Metropolitan Water District of Southern California. The sanctions motion comes after another attorney for the water district, Mitchell Tilner, of Horvitz & Levy in Burbank, California, filed a notice before the U.S. Court of Appeals for the Fourth Circuit to appeal the Feb. 8 final approval of the DuPont deal.