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Example 5-1 : Add Up All SB 14 Applicable Hazardous Waste Streams <br /> Hazardous Processed in <br /> Waste CWC Quantity Weight Wastewater <br /> Streams <br /> (units) (pounds) Treatment <br /> Unit? <br /> Spent rinse water 132 85,000 gal. 713,900 yes <br /> Spent plating bath 792 1,000 gal. 8,340 yes <br /> Category A <br /> Subtotal 722,240 <br /> Paint waste 331 10,000 no <br /> n <br /> Spent solvent 214 1,500 no = <br /> Emptied drums and 513 5,400 no <br /> containers <br /> Contaminated 181 500 no <br /> cleanup rags <br /> Category B <br /> Subtotal 17,400 <br /> Total 739,640 <br /> *Include routine wastes only. Do not include non-routine, exempted, and excluded wastes. <br /> Step 2 — Calculate Major Waste Streams for Category A Wastes <br /> SB 14 requires that hazardous waste streams that are processed in a wastewater treatment <br /> unit that discharges to a POTW or to a receiving water under an NPDES permit (Category A) <br /> be differentiated from those that are not (Category B) when calculating major waste streams. <br /> Use the following procedure to make this differentiation: <br /> • Divide the quantity of each Category A waste stream by the total quantity of both <br /> Category A and B waste streams, and then multiply the result by ioo to get a <br /> percentage. (See Example 5-2) <br /> • If applicable, calculate this percentage for each source (or hazardous waste <br /> stream) that contributes to the influent to a single wastewater treatment unit. <br /> 35 <br />