The Swedish Fortifications Agency is an authority under the Ministry of Finance and is responsible for the infrastructure used by the Armed Forces.
Their first assessment was that 368,000 liters of aviation fuel had leaked.
But today, four years later, almost 1.1 million liters - or 1,100 cubic meters - have been pumped up through decontamination.
The agency's initial assessment was that the leak would take at least a year and cost at least ten million kronor to clean up.
- We made the first assessment based on what we knew then and the facts we had then, says Johanna Holst, press secretary at the Swedish Fortifications Agency.
The clean-up bill is growing
At an early stage after the accident, the Swedish Fortifications Agency estimated that the leak would take at least a year and cost at least ten million kronor to clean up.
Today, the costs are up to 27 million and what the final bill ends up being, you have no idea at present.
- It is still too early to say an exact sum, says Johanna Holst.
"No risk at all"
There are cottage owners and residents nearby. Do you still believe that there has been no further spread of this aviation kerosene to the groundwater, outside this contaminated area?
- Yes, we have done research that shows that there is no risk at all that there will be a spread outside this area that we now have control over, says Johanna Holst.
In the video, the Swedish Fortifications Agency answers why the environmental waste scandal was misjudged by such a large margin and how long it is believed that the remediation work will continue