Compensation for Raetihi's water-supply contamination is being investigated by Ohakune lawyers.
Lawyer Joanna Jordan, of Harris Harvey Nash, said a questionnaire was being sent out to see if there was a mood for the claim.
Raetihi residents and businesses were being asked if they wished to be included in a collective negotiation for compensation against Ruapehu Alpine Lifts for the contamination.
Ms Jordan said the only real cost residents could claim against their insurance would be for malfunction of something such as a burned-out hot-water cylinder.
Such claims would probably be wiped by policy excesses.