Some individuals seeking compensation
Cleaning up contaminated water supplies in Douglas last month cost Manx Utilities almost £12,000.
The Steam Packet has accepted responsibility for the accident on 7 December, when seawater was pumped back into pipes during maintenance works.
It took a full three days for the situation to be rectified.
Manx Utilities has confirmed it would be seeking to recover costs from the Steam Packet, of which £4,000 was spent on bottled water for affected properties around the quayside in Douglas.
A number of individuals have also sought compensation.
They have been directed to the firm's insurers.

Teen took knife out of house to 'scare away' other teenagers
Douglas Council looking to expand allotment scheme to give greater access to nature
Emergency road closure in Tromode this evening
Chief minister keen to release the lease for offshore wind farm