Men of Umbar defile the river Gilrain with their filth, leaving only polluted water for those who dwell in Linhir.
'Have you looked upon the water of the Gilrain as of late, ${PLAYER}?
'It has grown foul and thick with the filth of the Corsairs, and soon it will be nearly impossible to imbibe it. Some of their number must still lurk among the trees to the north and have a mind to poison us!
'Clear their filth from the river and drive them from our lands. For aiding me such a vile task, I shall see you well-rewarded.'
Corsair-filth can be found along the shores of the Gilrain to the north of Linhir.
Erchar has asked you to clear the Corsairs' filth from the Gilrain before it can pollute more of Linhir's water.
Erchar can be found in Linhir in eastern Dor-en-Ernil.
You have cleared the river of filth and should now return to Erchar.