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MW <br /> sera <br /> • <br /> OSIan Joaquin R+ratyicnal Trarnsit District <br /> 7. Category A, B and C Hazardous wastes <br /> A review of table 1 in section 6 indicates that the SJRTD generates both category <br /> A and B wastes. There are currently no category C wastes generated at the <br /> SJRTD's Stockton facility. The category A and B hazardous waste streams are <br /> described and analyzed as follows: <br /> • Category A Wastes: This category of waste is generated as the result <br /> of wastewater influents generated at two different generation points. <br /> Wastewater is generated inside the steam room as the result of steam <br /> cleaning of automotive parts and equipment. Wastewater is also <br /> generated inside the bus wash as the result of washing buses and other <br /> 0 vehicles. The effluents from both activities are piped to an oil/water <br /> separator, which was discussed in details in section 6. The final clarified <br /> effluent from the oil/water separator is then discharges to the City of <br /> Stockton's POTW. Currently there are no means of measuring the flow of <br /> wastewater before it enters the oil/water separator. Hence, the quantity of <br /> hazardous waste removed from the oil/water separator iS the number <br /> used in the calculations. The SJRTD generated a total of 42,769 kg of <br /> oil/water/ sludge from the separator and the associated drains and pits in <br /> the steam room and the bus wash bay. The total of category A and B <br /> wastes amounts to 42,769 kg. The total category A divided by total A and <br /> B wastes is 41 ,099/42769= 96%. <br /> • Category B Wastes: this category of wastes is comprised of the <br /> routinely hazardous wastes generated listed below: <br /> 27 <br />