Area of Concern 15 was broken down into 15A and 15B. 15A covered the Supply/Potable Wells 1, 2, 3, 4, 5, 6, 7, 10, 11, and 12. 15B identified Monitoring Well 130-02. AOC 15 was covered under Operable Unit III.
Some low level solvents, believed to be from once-through cooling water for the Brookhaven Medical Research Reactor, were found in this area. The contamination was picked up by the South Boundary groundwater treatment system.