HAZMAT situation: 'Non-emergency significant event' declared at Los Alamos --DP Road open after HAZMAT situation on Los Alamos property 14 Mar 2012 With sirens blaring, emergency management vehicles raced down DP Road Wednesday, responding to a Hazmat situation at Enclosure 12 in TA-21. For two hours, DP Road was closed as the LANL Hazmat team, Los Alamos Fire and Police Department and FEMA assessed the situation. Most of DP Road was reopened around 1:45 p.m. as LAPD decreased its perimeter. Capt. Randy Foster said the initial call came into dispatch at 11:53 a.m. The road was closed east of 272 DP Road until the all-clear from the LANL Hazmat teams came in Wednesday evening. The situation has been categorized as a "non-emergency significant event" by the laboratory... Police said a voluntary evacuation was taking place on DP Road. Police said for those who are working on DP Road to remain inside if they chose to stay. Businesses along DP Road still were waiting for an all-clear signal as of 7:30 p.m. An automated 911 call was received at the Los Alamos Monitor at 1:05 p.m. advising all people on DP Road to shelter in place until the all-clear signal is sounded.