Death Stranding - Public Service Porter Trophy Guide - Dispose of chiralium-contaminated cargo in the crater lake for the first time. [Bronze]

Go to the Junk Dealer facility (Central Region). There are a bunch of contaminated cargo pieces next to his facility. Pick up one of those. Then go to the big tar lake directly south of the Junk Dealer. Equip the contaminated cargo to your right hand (via inventory), hold R2 -- hold SQUARE but let go just when Sam is swinging his arm -- then he lets go and throws the cargo into the lake.