Z-??® Radium Removal Illinois Prairie Estates HOA Marseilles, Illinois Design Flow: 80 GPM Located 78 miles southwest of Chicago; 75 residents currently in the subdivision. Average radium levels approximately 17.3 pCi/L. No other treatment, only the addition of chlorine and polyphosphate. On-line System Start Date: September 2006 I NS TALLATION R EPORT ILLINOIS PRAIRIE ESTATES Clean water. Clean earth. That’s our promise. ®I NS

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