It’s stored in 177 underground tanks located on Hanford’s Central Plateau, 7 miles from the Columbia River. The tanks are old; 67 are believed to have leaked a total of about 1 million gallons of waste into th
–provide long-term source to groundwater • Multiple waste sites in the Central Plateau where depth to groundwater is ~200 feet • Contaminants of concern: technetium, uranium, strontium, etc. • At some sites, contaminants have reached ...