What kind of acid?
Sorry..I should have just googled. Sulfuric. Thats bad stuff. Was hoping it was HCL which is much easier broken down into basically salt water. H2SO4...not so much. Lotta dead...ugh...the stench is gonna be toxic.
Best guess is sulphuric. The Zambians have been dumping tons of lime into the water. They really need to dump that way downstream, so the moving acid doesn’t kill everything past that point.
As long as it wasn’t brown they should be okay.