(December 2, 2016, 10:13 AM EST) -- ASHEVILLE, N.C. — CTS Corp., Mills Gap Road Associates and Northrop Grumman Systems Corp. on Nov. 22 filed a consent decree with the federal government in North Carolina federal court in which they agreed to spend $9 million on interim remediation of groundwater contaminated with trichloroethene (TCE) (United States of America v. CTS Corporation, et al., No. 16-cv-380, W.D. N.C.)....