Parcel D was formerly part of the industrial support area and was used for shipping, ship repair, and office and commercial activities. Portions of the parcel were used by the Naval Radiological Defense Laboratory (NRDL). Former Parcel D covers approximately 98 acres and has been subdivided into four areas – Parcel D-1 (49 acres), Parcel D-2 (5 acres), Parcel UC-1 (4 acres), and Parcel G (40 acres).