Units Assigned:
25th Air Division (Defense) (10/48-9/51); 505th Aircraft Control & Warning Group (9/49-6/51); 634th AC&WS (4/48-2/52), 635th AC&WS (8/48-9/50), 636th AC&WS (9/48-8/51).

Chronology:
25 October 1948 – 25th Air Defense Division activated at Silver Lake (Everett), Washington (HQ ADC GO No. 101, 6 October 1948) with an authorized strength of 18 officers and 31 enlisted men. Brig Gen Ned Schramm assumed command of the 25th ADD (HQ 25AD GO No. 1, 25 Oct 48).
6 November 1948 – Maj John C. Burnett assumed command of the 25th ADD, relieving Brig Gen Schramm who assumed duties as Vice Commander, Fourth Air Force, Hamilton AFB, CA.
20 April 1949 – Col Clinton D. “Casey” Vincent assumed command of the 25th ADD.
03 May 1949 – 25th ADD relieved from assignment to Fourth Air Force and reassigned to Headquarters, Air Defense Command (HQ CONAC GO No. 58, 3 May 49).
20 June 1949 – Redesignated as the 25th Air Division (Defense) (HQ CONAC GO No. 69, 1 June 1949)
. 14 July 1949 – 25th AD(D) reassigned from Headquarters, Air Defense Command to Fourth Air Force (HQ CONAC GO No. 80, 14 July 1949) (Source: Apter).
21 July 1949 – “Operational control of the 505th AC&W Squadron (sic) and 637th AC&W Sqadron, and detachments at Paine Field, Neah Bay and Pacific Beach, Wash., and Fort Stevens and Portland Air Base, Ore., was assigned to the Division” (Source: Jarrett).
16 November 1949 – 505th Aircraft Control & Warning Group assigned to the 25th AD(D) (HQ Fourth AF GO No. 97, 14 Nov 49). 25th AD(D) assigned to Commanding General, Western Air Defense Force for operational control (HQ CONAC GO No. 122, 10 November 1949) (Source: Apter).
1 August 1950 – 25th AD(D) and its assigned units – the 505th AC&WG, 634th AC&WS, 635th AC&WS, 636th AC&WS, 637th AC&WS, 638th AC&WS and the 325th Fighter All-Weather Wing – assigned to Western Air Defense Force (no GO listed).
1 January 1951 – 25th AD(D) reassigned to Headquarters, Air Defense Command (Source: ADC Historical Data, n.d.).
13 September 1951 – “According to Historical data available, o/a 13 September 1951 was the 25th Air Division moved from Silver Lake (Everett) Washington to physically locate the Division Headquarters at McChord AFB, Wash. Prior to this move only certain units of the Division were physically located on McChord; 634th AC&W squadron, etc.” (Note: Jarrett gives a date of 16 September 1951).

DERP/FUDS Findings of Fact:
The Silver Lake AWS Station, consisted of 93.75 acres, acquired for the Department of the Air Force between 1946 and 1948.

The Silver Lake AWS Station was an Air Defense Division Regional Headquarters which received and recorded information on incoming aircraft. The installation consisted of transmitter, receiver, housing, administration, recreational and auxiliary power facilities. On August 11, 1953 the Silver Lake AWS was declared excess. The permits and licenses were terminated September 28, 1953 and the leases were terminated during 1953 and 1954. At the time of excess, 18 buildings were left on the site. Currently, ownership of the site is divided among private residential holdings, including a trailer park, and the Mukilteo School District No. 6. As part of the restoration settlement with leaseholders, government improvements were either transferred to the lessor, abandoned in place or sold for off-site removal.

DERP/FUDS Description of Site:
The only remaining DOD structure (Note: in 1990) identified on the site is the station’s auxiliary power facility, located on School District property between Meridian Avenue and Fourth Avenue West. The now roofless and empty building is a five-room concrete structure, approximately 1200 square feet in size, which is in a close proximity to the newly-built Discovery Elementary School. The structure has not been been beneficially used by the School District. An open chimney rises approximately 20 feet over a small room at the center of the building. The building is in a state of extreme disrepair and presents a climbing and structural debris hazard to school children.

Sources:
DERP/FUDS Report. Silver Lake AWS Station, Snohomish County, Project No. F10WA044800 (Seattle: Seattle District, US Army Corps of Engineers, 6 August 1990)
Lt Ethel E. Apter, “History of the 25th Air Division (Defense), McChord AFB, Washington (McChord AFB, WA: 25th Air Division, n.d.).
Grover C. Jarrett, Division Historian. “History of the 25th Air Division” (McChord AFB, WA: 25th Air Division, n.d.).
Site visit, WADS/HO, 18 January 2003.