Some notes on the above:
-The Aleutian Trench is just south of the Aleutian Island chain. This is the proposed location for our project. It has an area of nearly 30,000 square miles.
-The Juan De Fuca is a small trench just off the coast of Washington/Oregon/British Columbia. It is the trench on which the following illustration is based (see next page).
-The West Coast of South America has a large trench called the Peru-Chile Trench.
-The Kurile Trench extends along the east coasts of the Kurile Islands.
-The Mariana Trench extends from Japan to the north coast of New Guinea. This is the deepest trench in the world at 37,000 feet.
-The Ryukya Trench runs roughly from Japan to the Philippine Islands.
-The New Hebrides Trench extends from New Guinea to the east-southeast.
-The Tonga Trench extends from well north of New Zealand to a connection with the Kermadec Trench.
-The Kermadec Trench connects with the Tonga Trench to the north and the North Island of New Zealand to the south. Kermadec and Tonga trenches can be considered as one.
-The Java Trench is a massive trench off the West Coast of Indonesia.
The other trenches on the map are mostly at sea, but two are on land. One of the latter is on the border between India and China while the second is in the Middle East. I consider nothing on land suitable because of the lack of shielding effect from the water and the security problems from terrorists.
The waste would be taken to one of these faults to be buried. Once buried, the STV(s) would eventually travel with the subducting seafloor into the mantle underneath the adjoining continental crust, as shown in the following illustration: