Holston Army Ammunition Plant

Photo of Lt. Col. Joel Calo COMMANDER
Lieutenant Colonel Joel Calo

Lt. Col. Joel Calo assumed command of Holston Army Ammunition Plant on Aug. 5, 2022. Holston Army Ammunition Plant produces a wide range of high quality explosives for the Department of Defense.

Lt. Col. Calo holds a Bachelor’s of Science in Business Administration from the University of Puerto Rico and a Master’s of Arts in Executive Leadership from Liberty University. He was commissioned as a 2nd Lt. in the U.S. Army in 2004.

Lt. Col. Calo’s assignments include: Tank Platoon Leader for C Company, 2d Battalion, 1st Brigade of the 8th Cavalry Regiment, 1CD, Fort Hood, 2005-2007; Executive Officer of E Forward Support, 1st Brigade of the 115th Brigade Support Battalion, 1CD, Fort Hood, 2007- 2008, deploying for OIF, 2006-2008; Logistic Advisor, Iraqi Training and Advisory Mission, United States Forces – Iraq, deploying for OIF, 2009; Battalion S4 for the 49th Movement Control Battalion of the 4th Sustainment Brigade, 13th ESC, Fort Hood, 2010- 2011; Commander of the 289th Quartermaster Company, 553d Combat Sustainment Support Battalion for the 4th Sustainment Brigade, 13th ESC, Fort Hood 2011-2014, deploying for OEF, 2013; Support Operations Officer and Brigade S4, 75th Field Artillery Brigade III Corps, Fort Sill, 2015-2016; Battalion Executive Officer, 262nd Quartermaster Battalion, 23d Quartermaster Brigade QMS, Fort Lee, 2016-2017; Chief of the Sustainment Mission Command Product Development, Enterprise Systems Directorate, CASCOM, 2018-2020; Chief of the G4 Logistics Operations and Exercises Branch, U.S. Army Pacific Command, 2020-2022.

Lt. Col. Calo’s military education includes the Armor Officer Basic Course, the Combined Logistics Captain Career Course, the Aerial Delivery and Materiel Officer Course, the Support Operations Course and the Capabilities Development Course. He was also a part of the Military Transitions Team and attended the U.S. Command and General Staff College.

Lt. Col. Calo’s awards and achievements include: one Valorous Unit Award; two Meritorious Unit Commendations; the Bronze Star Medal (1 Oak Leaf Cluster); Meritorious Unit Commendation (1 Oak Leaf Cluster); the Army Commendation Medal (2 Oak Leaf Cluster); the Army Achievement Medal; the Parachutist Badge; and the Parachute Rigger Badge.

Photo of DC Jeffrey Worley DEPUTY TO COMMANDER
Jeffrey G. Worley

Mr. Jeffrey G. Worley is the Deputy to the Commander for Holston Army Ammunition Plant.

Worley is the senior civilian leader responsible for ensuring that operation of the 6,000-acre explosives plant meets the readiness needs of the U.S. Army and the Department of Defense. These duties include managing the manufacturing of a wide range of explosives; program execution; facility redevelopment; technology application; strategic planning; budget execution; modernization efforts; and contract surveillance.

Worley previously served as Quality Assurance Supervisor at Holston Army Ammunition Plant – the lead Government Quality Assurance explosives authority responsible for managing workload for all quality assurance personnel. He has also served as a quality assurance representative at the Defense Contract Management Agency, where he provided quality assurance for the Terminal High Altitude Area Defense missile system, Trident II missile system, and F-35 Joint Strike Fighter composite components.

Prior to his Department of the Army civilian career, he served in the United States Air Force. Worley retired from the Air Force as an F-15 maintenance technician and aircraft production manager after 22 years. He was stationed at Tyndall Air Force Base, Pope Air Force Base, Seymour Johnson Air Force Base, and Keflavik Naval Air Station, Iceland.

Worley graduated from Campbell University with a bachelor’s of business administration. He also holds a level III certificate in advanced production, quality and manufacturing.