DOE provided the initial $87.7 million of funding by accepting title to quantities of depleted uranium that enabled us to release encumbered funds. We received $55.6 million of the cash in the third quarter of 2012 as the surety bonds and related cash deposits providing the financial assurance for disposition of this depleted uranium were reduced. We expect to receive the remainder in the fourth quarter of 2012.
Under the terms of the RD&D program, we have begun manufacturing and operating additional AC100 machines and expect to complete and operate a 120-machine cascade in a commercial plant configuration in 2013. As of September 30, 2012, we had approximately 80 machines built and conditioned with uranium gas, and we continue to build new AC100 machines for the RD&D program’s demonstration cascade of commercial centrifuge machines and supporting infrastructure. We have begun installing service modules and other control equipment to support the RD&D commercial cascade.
Continued lead cascade operations and the transition to a demonstration of the 120-machine cascade in 2013 will accomplish two of the primary objectives of the RD&D program. The first objective is to demonstrate sufficient run time on the AC100 centrifuges to establish the high confidence level in cascade reliability required by DOE to support loan guarantee financing for the commercial plant. A second objective is to build out and demonstrate the full level of balance of plant system redundancy designed for the commercial plant.
The cooperative agreement with DOE includes five technical milestones for the RD&D program. The first two milestones have been achieved and the remaining three have a milestone date of December 31, 2013, tied to the completion of the program. In addition, the cooperative agreement also contains five non-binding performance indicators that are designed to be achieved throughout the RD&D program and ensure that the RD&D program is on track to achieve the remaining three milestones and other program objectives. As of September 30, 2012, we had manufactured a sufficient number of AC100 centrifuge machines and attained sufficient centrifuge machine run time to meet two of the performance indicator goals.