These are 2 common tarnslations, but we don't have enough context to be sure what sort of form it takes, nor indeed, what kind of "waste" is involved here.
I would have given this a higher confidence level if we had had proper context to work with.


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Note added at 4 hrs (2018-10-09 13:54:53 GMT)
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Of course, without context, we don't know what kind of 'déchets' are involved, and hence whether 'waste material(s)' is necessary or even correct.
Likewise, we don't know for sure why there is a 'quai' for them — presumably they are going to be loaded onto some form of transport for removal and disposal; but it could of course be the other way round: incoming waste for processing.
So many unanswered questions, due to lack of context. Might be hazardous waste / medical waste / food waset, etc. etc.


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Note added at 7 hrs (2018-10-09 17:47:00 GMT)
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OK, in that case, then, the precise term is not so important, since it basically is referring to something tha no longer exists!
Do you know what country this is destined for? Have you been asked for EN-GB or EN-US?