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DRAFT <br />There have been no significant spills and/or leaks at the site since 1993, nor since <br />the facility started operations at its present location in 1989. Significant spills <br />considered included, but were not limited to, releases of oil or hazardous substances <br />in excess of reportable quantities. <br />QBR does not discharge unauthorized non-stormwaters to the facility's stormwater <br />drainage system. There is no onsite cleaning of vehicles or equipment, or wash <br />down of work areas, where the wash waters are discharged to the site=s surface <br />drainage conveyance system. All equipment and parts wash waters are directed to <br />the facility=s Washwater Recycling System for reclamation or continerized and <br />managed as a regulated waste for offsite treatment/disposal or recycling. <br />1.5.6 Dust and Particulate Generating Activities <br />The QBR site engages in activity which results in a point source discharge (i.e., <br />Aemission stack=) of dust or particulates which is regulated by, or requires a permit <br />issued by, the San Joaquin Air Quality Control Board (See Section 5: Appendices <br />for copies of QBR's Air Quality Permits). There are two types of dust particulates <br />generated by QBR: 1) Spent shot and shot dust from the shot blasting operations ; <br />and 2) Grindings from the grinding of bonded brakes shoes and friction material. <br />Both operations take place inside the main manufacturing building. Both operations <br />are completely contained within and exhaust system which contained the dusts and <br />particulate within a bag house equipped with HEPA filtration. The spent shot and the <br />grindings dusts are removed from the bag houses and managed as either asbestos <br />wastes or RCRA solid waste. <br />C:\TEMP\SMPREV2.doc Section 1-15 <br />