| Abstract |
The 1,100-acre Ogden Defense Depot site has been a key installation in the Department of Defense (DOD) supply system in Ogden, Weber County, Utah. In the past, both liquid and solid materials have been buried, burned, or disposed of in several areas at the Defense Distribution Depot, Ogden, Utah (DDOU). These areas have been divided into four operable units. OU4 is composed of Burial Sites 4-A through 4-E. The ROD addresses the five burial sites as OU4. DDOU's analysis indicated that the soil in Burial Site 4-E is the primary source of ground water contamination, whereas Burial Site 4-A is considered a potential secondary source. OU4 is the third final response action and its goal is to reduce the principal threat posed by contaminated soil and shallow ground water that may occur as a result of future exposure of residents or onsite workers. The primary contaminants of concern affecting the soil, debris, and ground water are VOCs, including benzene; other organics, including pesticides and PCBs; and metals, including arsenic, chromium, and lead. |
