The Department of Toxic Substances Control (DTSC) has approved a Hazardous Waste Facility Permit Renewal (Permit Renewal) for the Vandenberg Air Force Base Explosive Ordnance Disposal Range (EOD Range) as authorized by the California Health and Safety Code, Chapter 6.5. The EOD Range receives and treats unexploded propellant, explosive, and pyrotechnic materials (PEP). These materials include obsolete ordnance, explosive waste from training operations, materials with an expired shelf life, or explosive waste discovered on base. The materials are detonated in the open, which has been used for explosive ordnance detonation since 1945. The current permit authorized detonation of up to 250 pounds of cased explosive or 500 pounds of non-cased explosives per day, 1500 pounds of PEP per month, and 8000 pounds of PEP per year. C-4 explosive is used as a donor charge to ensure complete destruction of hazardous waste. In practice, significantly smaller quantities of PEP waste are detonated at an event, ranging from five to ten pounds. No new construction or expansion of any activities and operations from levels analyzed in the May 13, 2008 Final IS/ND will occur. The only change is extension of the permit authorization for an additional ten years and reducing the limits of PEP treatment from a monthly maximum of 1500 pounds per month to 1000 pounds per month.