In the highly unlikely event that a multi-purpose canister (MPC), protected by an overpack with 27 inches of steel and concrete surrounding the MPC were to leak, the temporary solution would be to place the MPC in a HI-STAR 100 transportation overpack.
Because no such leak has ever occurred from a Holtec MPC, with 20 years of system usage, as the licensed owner of the system, as well as the manufacturer of the system, we would work to bring the canister back into the required compliance under NRC regulations. As always, our priority remains on the safe, secure storage of all spent fuel in our systems and pride ourselves on the innovations Holtec has brought to the industry regarding fuel storage.