Whilst playing through the game, Whitney Chang will email you about the water treatment plant being poisoned and a green sewer icon will appear on your map. Travel here and complete this level, defeating the Rhino at the end, for this trophy to unlock.
Rhino is more difficult here than in his initial fight. Use Rhino to smash the screens between the electric pylons in the centre of the room by dodging out of his way when he charges using . Then find a gap between two of the pylons, and press to put a web between the two.
Now get the Rhino to charge into the web, and he will get stuck. Web rush into him with to damage him, and repeat this three times to knock him down for the count.