nuclear-news

On October 31, 2015 the DNFSB reported:”Surface Fire Water System. There have been eleven fire water loop failures since 2008 (4 in lead-ins, 4 in loop piping, 1 PIV bonnet and 2 hydrants). NWP has signed a contract with an engineering firm to evaluate the condition of all fire water equipment, including pumps, tanks, buried piping and fire detection and control equipment. Recommendations to repair or replace the system are due in November, 30% conceptual design is planned to complete in late December and 90% design in July 2016. The staff is concerned about the timing of upgrade completion and the receipt of offsite waste for disposal.

Consolidated Evaluation of the Safety of the Situation (ESS). During October the staff conducted a review of the consolidated ESS and participated in a teleconference with the site. Radiological risk in the underground is dominated by the potential for a repeat thermal…