A low level tritium plume was generated from activated soil surrounding the BLIP target vessel. Source area corrective actions were implemented including a concrete cap and storm water runoff controls. A draft record of decision is currently under regulatory review. The final remedy will include continued maintenance and inspection of the cap along with groundwater monitoring and reporting to verify that the source controls are effective.
This includes a tritium plume that originated from an activated soil shielding area adjacent to the g-2 experiment. A draft record of decision is currently under regulatory review. Several corrective actions have been implemented at the source area including a concrete cap and storm water controls. The Record of Decision (PDF) for Area of Concern 16T g-2 Tritium Source Area and Groundwater Plume, Area of Concern 16K Brookhaven Linac Isotope Producer, and Area of Concern 12 - Former Underground Storage Tanks was approved on May 10, 2007.
Operable Unit (OU) locations are designated as part of the CERCLA program to delineate significant known or potential source areas of contamination.
For each operable unit, a feasibility study was conducted to analyze and evaluate cleanup alternatives. The next step was to identify a preferred remedy, which is outlined in a document called the proposed remedial action plan. The record of decision is the final step, describing the chosen remedy and documenting the decisions that led to the chosen remedial action. Once the record of decision is issued, the remedial design and construction take place and the final cleanup begins. The following operable units contain areas of known groundwater contamination: