Rathon has been tasked with maintaining many of the cisterns in Minas Tirith by himself and has come to find piles of muck spreading through the cisterns.
'Upon my last walk through the cisterns, I noticed some strange piles of muck. Some of the mountainous cave-lizards have ventured into the cisterns recently and I believe they may be causing a mess in there. If you're already going into the cisterns, perhaps you would be inclined to clean up some of this filth? It would put me at ease to not get any of this muck into the city's drinking supply.'
Piles of muck can be found within the cisterns.
You should remove piles of muck from the cisterns.
Rathon can be found outside the cistern entrance on the Fourth Circle of Minas Tirith.
You should speak with Rathon.