Radiological results from sediment and surface water sampling following 2/14/14 WIPP release event

Surface Water Samples

On March 20th and on March 28th, CEMRC technicians collected surface water samples from the three public reservoirs in the area including Brantley Lake, Lake Carlsbad (lower tansil), and Red Bluff Lake. These samples included both shallow and deep water samples as well as sediment samples from the bottom of the reservoirs. Once the actinide separation process was completed, the samples were counted initially for 24 hours and again for a total of five days. For quality control purposes, a duplicate sample was randomly selected from one of the three reservoirs and was analyzed along with the primary samples. As can be seen in the table below, there were no detectable levels of Americium (²⁴¹Am) or Plutonium (^239+240Pu, ²³⁸Pu) for any of the surface water samples collected.

Sediment Samples