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example, as indicated in Figure 2, if a throughput factor of 80 <br /> percent is used to initiate system regeneration, then an adequate <br /> safety factor is provided to guard against effluent excursions. <br /> Should influent characteristics change significantly during ground— <br /> water operation adversely affecting system throughput capability, <br /> the chromate analyzer will be monitoring system performance and <br /> will immediately signal momentary excursions in effluent quality. <br /> Such an excursion will cause treatment and discharging to cease. <br /> Storm Water Operation <br /> 1. During storm events, samples of collected storm water will be <br /> analyzed for total chromium and copper. <br /> 2. Anticipated cation exchanger run length will be calculated as <br /> indicated in Table 4 and compared against the current automatic <br /> totalizer setting for groundwater anion run length. <br /> 3. The system totalizer alarm set point will be adjusted, if <br /> necessary, to assure that no breakthrough of either cation or anion <br /> exchangers will occur. <br /> 11 <br />