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Fs <br /> 0 <br /> 6 <br /> 2 <br /> O <br /> MAXIMUM CHROMIUM <br /> CONCENTRATION LIMIT <br /> a ALLOWED FOR <br /> DISCHARGE 2 ISCHARCE <br /> s0 — — — _ — — _ — — — — — — — _ — _ <br /> 0 <br /> u <br /> L JO PPM 20 PPM 10 PPM I PPM <br /> J 5 PPM HEXAVALENT <br /> CHROMIUM <br /> o <br /> CONCENTRATION <br /> TSYSTEM <br /> i 10 SYSTEM INLET <br /> u <br /> i <br /> 3 <br /> W_ <br /> 2S <br /> W <br /> J <br /> J <br /> LL <br /> w 1 PPM <br /> L <br /> W <br /> N <br /> Y <br /> N <br /> 0 �I�-T-7-TTT1 1 1 1 1 1 1 1 1 • <br /> 0 2 4 6 B 10 41 46 <br /> SYSTEM THROUGHPUT. MILLIONS OF GALLONS <br /> 0 5 10 Is 20 25 110 115 <br /> DAYS OF OPERATION BETWEEN REGENERATIONS <br /> FIGURE I <br />