The contaminated soil had not been remediated, and if it already seems lamentable that a technology should be needed to remediate something done by a third party in an inefficient and dangerous way, it is all the more so because to date, remediation has not been completely achieved.
No se había remediado el suelo contaminado y si ya nos parece lamentable que se necesite de una tecnología para remediar lo que otra hizo de forma ineficiente y peligrosa, lo es mucho más que hasta ahora no se haya conseguido de forma total.