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Primex Ordnance and Tactical Systems EPA ID No.: CAD006626762 6. In a Draft Hazardous Waste Facility Permit dated April 4, 1983, PI stated that they do not operate a hazardous waste storage unit because they do not store greater than 90 days. 7. On October 31, 1985, PI submitted a revised Part A. This revised Part A indicated that was codes P015 and P053 were incorrect and that there were no land disposal operatio s at the facility. The only waste handled was waste code K047 which was treated d stored in tanks and then further treated by open burning. 8. On Nove ber 8, 1988, PI submitted a revised Part A indicating that the only hazardou waste activities conducted on-site were open burning and open detonation of HMX, RDX, and TNT explosive wastes. All storage activities were operated accordin to generator regulations. 9. On Nove ber 8, 1989, PI submitted a Part A and Part B application for authoriza ion to conduct the following activities: Treatment by open burning of materials contaminated with HMX (cyclotetramethylenetetranitramine), RDX (cyclotri ethylenetrinitramine), and TNT (2,4,5 -trinitrotoluene) explosives, and treatment by open detonation of excess HMX and TNT explosives generated during casting o erations. All wastes treated fell under waste code D003. The managem int of pink/red water was not included because the facility determined that it was ex mpt pursuant to Health and Safety Code Section 25143.2(b)(1), from permittin requirements because it is recycled and used on site. The Part B applicatio also identified seven sites formerly used between 1965 and 1988, for either disf osal or treatment of hazardous wastes. These sites consisted of 2 burn pits (Sites A and F), a drum burial area (Site B), two surface impoundments (Sites C and D), a clarifier discharge area (Site E) and a battery disposal area (Site G). Although hese sites were no longer active, these sites were required to be closed according to an approved closure plan since they were previously used for manaizem nt of hazardous wastes. 10. On April , 1990, the Department of Toxic Substances Control (Department), issued a N tice of Deficiency (NOD) on the Part B Application submitted on November 8, 1989. 11. On June 7 1991, during the permitting process, PI withdrew its application due to successful ante minimization efforts and because it had found a market for its wastes. 12. In June 191, PI submitted closure plans for the seven inactive units, known as Sites A thr ugh G, that were identified in the Part B application. On March 18, 1993, theepartment approved the closure plans for Sites A through G. On December 6, 1994, the Department approved a closure certification report on Sites A through certifying that the units have been closed according to the approved closure pla s. Site G was not included in the certification because the hazardous 2