Clearance work following the Kerry landslide over the weekend has been suspended, pending the completion of a risk assessment.
There are fears a second landslide may occur if there is further heavy rain.
The initial landslide began on Friday evening and saw over 25 acres of land on the move. The landslide was 50m wide and 4km long at one point.
Kerry County Council is advising 1,500 people living in the Lyrecrompane and Magha areas to continue to boil water before use, after the slide caused major contamination of the River Smerlagh and River Feale.
The Shannon Regional Fisheries Board has warned of devastating consequences for salmon fish stocks, which could take for up to 10 years to recover.
The board has begun to take samples with a view to future prosecutions for the damage to the juvenile salmon stock.
As the landslide moved downhill, large volumes of liquefied peat entered the main water supply for the area.
Kerry County Council senior engineer Brian Sweeney confirmed that water tankers would be provided in this area, details of which would be announced later.
However, about 20,000 people who receive water from the Dromin treatment plant, which is supplied by the River Feale, have been told that their water supply is safe.
