Columbia's responses below. From: [email protected] [mailto:[email protected]] On Behalf Of Derek Hultquist Sent: Monday, June 30, 2014 6:01 AM To: [email protected] Cc: Bill Zielke Subject: Powernet: HEPA Benchmarking
Hello all, D. C. Cook is looking to benchmark other HEPA programs in the nuclear power industry. Below are some specific questions that we're most interested in. Thank you for your response. 1. How do you control your HEPA(PVU) and vacuums? HEPAs and extra vacuums not designated for issue are kept in a locked area in the radioactive waste building. Vacuums designated for issue are kept in the tool crib and locked up with a cable chain and padlocks. 2. Do you store them in a cage or designated room in your Auxiliary building? See question 1. 3. Who does the maintenance on the HEPA(PVU) and vacuums? Radioactive Material Control Laborers perform filter changes, maintenance perform the HEPA filter testing and minor maintenance on the vacuums. 4. Do you have a computer check out system? yes 5. How do you control where the HEPA(PVU) and vacuums are moved to after they have been issued? Worker who checked out the vacuum is responsible for maintaining control of the vacuum and preventing unauthorized use. 6. Do you perform your own PAO (leak test) testing? Yes, Maintenance Department. 7. How often do you verify the radiological conditions of the vacuums? It is dependent on the radiological conditions at the work locations. At a minimum the vacuums available for use are checked monthly during the routine survey of the Tool Crib. 8. What type of HEPA(PVU) and Vacuums do you use? SP-125, SP-700, SP-1000 and PFB 2500SP all supplied by RPS. Vacuum cleaners are from Nilfisk. PVU = Portable Ventilation Unit Thanks, Derek Hultquist Associate Health Physicist Donald C. Cook Nuclear Power Plant (269) 465-5901 x2088
