Buck B. Endemann and Christina A. Elles of K&L Gates have entered appearances for Apollo Southwest Inc., Prezero US Services and Prezero US Inc. in a pending environmental lawsuit over water discharge from an industrial plant. The suit was filed June 7 in California Central District Court by Orange County Coastkeeper on behalf of Inland Empire Waterkeeper and Orange County Coastkeeper. The case, assigned to U.S. District Judge Josephine L. Staton, is 8:21-cv-01001, Inland Empire Waterkeeper et al v. Prezero US, Inc. et al.