( March 19, 2024, 1:48 PM EDT) -- CHARLESTON, S.C. — Class counsel in the multidistrict litigation for the firefighting agent aqueous film forming foam (AFFF), which contains per- and poly fluoroalkyl substances (PFAS), filed a brief in South Carolina federal court on March 18, arguing that a California water district’s motion to intervene for the purpose of filing an appeal of a $1.18 billion class settlement that recently received final approval should be denied because the motion is untimely due to the fact that the water district waived its ability to challenge the settlement because it opted out of the deal....