The Chairman Senate Committee on Customs, Excise and Tariff, Hope Uzodinma, made the disclosure when briefing journalists in Abuja on Tuesday.
He said that the containers were moved there by the NPA to decongest the Apapa Port.
Mr. Uzodinma said the committee discovered the cargoes during its oversight visit to the terminal in Lagos.
The senator said the containers contained valuables such as transformers, cars and electronics.
The chairman expressed his disappointment over the non-implementation of the Act establishing the Nigeria Customs Service with regards to disposal of overtime cargoes.
The committee also discovered over 1000 uncleared containers in Ikorodu owned by Delta and Jigawa states government, which have been at the Customs Service and Nigeria Port Authority’s custody for the past 10 years.