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operating on groundwater with the cation exchanger operating on storm <br /> water, the influent groundwater will be blended to cause resin <br /> exhaustion at the same throughput, regardless of the water being <br /> supplied. Thus the automatic totalizer setpoint can be established and <br /> will not require changing when the influent water changes. For example, <br /> as indicated in Tables 3 and 4, a treatment run on groundwater at <br /> 10 mg/l Cr(+6) will exhaust the anion resin after approximately 4 <br /> million gallons, and treatment runs on storm water at 16. 1 mg/l Cr <br /> (total) will exhaust the cation resin at approximately 4 million <br /> gallons. The most conservative breakthrough throughput total will be <br /> used to establish the total flow alarm point for the system. <br /> The automatic chromate analyzer will be the secondary monitoring <br /> device used to monitor the chromate concentration in the effluent from <br /> the anion exchangers. The analyzer will be used as a backup to the <br /> automatic totalizer. Chromate is the predominant wood treating chemical <br /> in the water to be treated. Monitoring the effectiveness of chromate <br /> removal should provide a reliable indicator for the overall effective- <br /> ness of treatment. <br /> STARTUP PROTOCOL <br /> Initial Functional Testing <br /> Under the direction of the Infilco Degremont Service Engineer, the <br /> system will be filled with potable-quality water. The system will be <br /> operated to test all functional elements. When all process and regener- <br /> ation features are confirmed to be functional, the system will be <br /> certified ready for water treatment. <br /> Pond Water Operation <br /> 1. Pond water will be chemically pretreated to reduce solids loading <br /> on water treatment plant operation. <br /> 2. Valve arrangement on the cation exchanger will be manually set so <br /> that all water treatment plant effluent is directed to the two <br /> neutralization tanks. <br /> 8 <br />