McClellan Air Force Base contaminant levels for chromium-6, which is 10 parts per billion. McClellan Air Force Base McClellan Air Force Base (1935–2001) is a former United States Air Force base located in the North Highlands area of Sacramento County, northeast of Sacramento, California. For the vast majority of its operational lifetime, McClellan was a logistics and maintenance facility for a wide variety of military aircraft, equipment and supplies. The depot went through several name changes, finishing its life in 1995 as the Sacramento Air Logistics Center (SALC). The SALC reported to the Air Force Logistics Command (AFLC) and later the Air Force Materiel
Johnston Island Air Force Base and water production at the base and built additional facilities. The 5th Battalion departed in January 1943. In December 1943 the 99th Naval Construction Battalion arrived at the atoll and proceeded to lengthen the runway to and add an additional of parking to the seaplane base. US Navy and Marine units based at Johnston included: US Navy and Marine units based at Johnston included: Johnston Island Air Force Base Johnston Island Air Force Base is a former United States Air Force base on the Johnston Atoll in the United States Minor Outlying Islands, in the Pacific Ocean several hundred kilometers