Storm damage at Omarunui Landfill during the April floods has cost more than $100,000 to fix.
The heavy rainfall saturated the landfill's leachate processing system, causing a build-up which had to be trucked off site and disposed of, Hastings District Council said.
Leachate is a liquid which runs off the landfill and includes contaminants from the waste. It's usually trapped in ponds at the landfill.
Waste services manager Martin Jarvis said the extreme rain event caused a large inflow of water into the leachate system and pond.
As a precautionary measure, some of the liquid was pumped out of the pond to be disposed of.
The leachate was taken by tanker to Beard's Environmental in Omahu Rd, where it was treated and disposed of, at a cost in excess of $100,000.
But the council said the landfill's financial result was still on target, despite the extra disposal costs and lower than expected revenue.
A drop in the volume of waste being dumped at the landfill was predicted to result in a loss of revenue of about $200,000.
But the council said operational cost savings had more than offset the lost income, and a budget surplus was predicted.
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