Region 8

Ogden Defense Depot (DLA)

Ogden Defense Depot site location map Site Type: Federal Facility Final NPL
City: Ogden
County: Weber
Street Address: 500 West 1200 South
Zip Code: 84407
EPA ID: UT9210020922
SSID: 0860
Site Aliases: Defense Distribution Depot of Ogden, Burial Site 1 Ogden Nature Center, U.S. Dept. of Defense Depot Ogden
Congressional Districts: 1

Site Description

Defense Depot Ogden, Utah (DDOU), located in Weber County, covers about 1,139 acres in northwestern Ogden. Activated in 1941, it served as a warehousing and distribution facility. At one time it stored and distributed food, clothing, petroleum products, as well as medical, industrial, construction and electronic supplies to military installations and other federal agencies.

Map of the Superfund site boundary, February 2007

DDOU was one of seven warehousing and distribution depots operated nationwide by the Defense Logistics Agency. Soil and groundwater contamination on the site led the Environmental Protection Agency (EPA) to add DDOU to its Superfund National Priorities List in 1987.

DDOU reached construction completion in September 1995. All remaining cleanup activity is under oversight by EPA and the Utah Department of Environmental Quality (UDEQ). Congress approved DDOU as a Base Realignment and Closure (BRAC) Act installation in October 1995. Reuse of the base began in late 1997. DDOU officially closed on September 30, 1997.

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Site Risk

Media Affected Contaminants Source of Contamination
soil, groundwater, debris VOCs, including TCE, vinyl chloride, DCA in the shallow aquifer; soil contaminated with semi-volatile compounds metals, including arsenic, lead, zinc, cadmium, mercury and barium and pesticides depot disposal pits, burning, and etc.

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Cleanup Progress

Major construction on all four of the DDOU Operable Units (OUs) has been completed. During fiscal year (FY) 1997, two ground-water pump-and-treat systems were in operation and maintenance, with the third pump-and-treat system shutdown because the cleanup goals had been achieved. However, during the shutdown period, the contaminant levels rose above EPA Maximum Contaminant Levels, so all 3 systems operated during FY1998.

The OU2 pump-and-treat system was shut down in the fall of 1998 to gather additional site data to determine either how to operate the system more effectively or to propose another alternative to complete the ground-water cleanup. Two additional source areas were located and are currently being remediated.

In November 1996, a new burial site for possible chemical-warfare material was identified at the Ogden Nature Center on property formerly owned by DDOU. This site has been designated as a Formerly Used Defense (FUD) site, and DDOU led the cleanup which began in the summer of 2000, with oversight by EPA and the UDEQ.

The OU4 plume boundary was redefined, and DDOU designed an additional groundwater containment system to capture the entire plume. After redefining the plume boundary, further studies were conducted to be sure that all potential groundwater contaminant sources had been located. A couple of potential source areas were discovered and have been remediated.

The first five-year review (OU2) was completed in July 1996. Five-year reviews for OU1 and OU4 were completed in July and August of 1998, respectively. OU3, which was a soil-only and fully excavated OU, does not require a five-year review. A third five-year review was completed in July 2007.

All investigation has been completed. Groundwater cleanup is continuing.

Reuse of the base began late in 1997. Some of the old warehouses are now under lease for activities such as light manufacturing, warehousing, medical-laser manufacturing, rail manufacturing, medical storage, and food supplement production.

After the site became a BRAC installation, an Environmental Baseline Survey was conducted in July 1996. As a result, all areas/sites in question have been studied and addressed, so the property can be leased or transferred as soon as possible. The largest of these, the Plain City Canal, is a former irrigation ditch that was filled with debris from various sites around the facility, including a former burn pit. Removal of the contaminated debris was completed in 1999.

The site no longer poses any significant health risk.

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Site Documents

Update to the Five-Year Review, December 2010

Third Five-Year Review Report (PDF), July 12, 2007(297 pp, 8.1 MB, About PDF)

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Kathy Cerise
Remedial Project Manager
U.S. Environmental Protection Agency, Region 8
1595 Wynkoop Street (8EPR-SR)
Denver, CO 80202-1129
800-227-8917 ext. 312-6101 (toll free Region 8 only)

Site Information Repository:

Defense Depot Ogden
Building 1
500 West 1200 South
Ogden, UT 84407-5812


Muhammad Slam
State Project Manager
Utah Department of Environmental Quality
Environmental Response and Remediation Division
195 North 1950 West
Salt Lake City, UT 84116-3097

Dave Allison
State Community Involvement Specialist
Utah Department of Environmental Quality
Environmental Response and Remediation Division
195 North 1950 West
Salt Lake City, UT 84116-3097

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