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<br />REVISED DRAFT <br /> <br />VII. <br /> <br />REVIEW OF W ASTEW A TER SYSTEM DATA <br /> <br />A. <br /> <br />Review of Historical Wastewater Data <br /> <br />To determine a comparison of wastewater production to water consumption by the City's water <br /> <br />utility customers, av:ailable test year data was analyzed for the purpose of this study. From the <br /> <br />test year residential water consumption, water-only (customers with sprinkler meters and septic <br /> <br />tanks) consumption was removed. <br /> <br />Commercial contribution to the wastewater system is estimated from the commercial and retail <br /> <br />industrial water consumption after eliminating the consumption of the water-only accounts. <br /> <br />Since the commercial and industrial water consumption exhibits minimal seasonal variation, <br /> <br />nearly 100 percent of the water consumption of these customers contribute to the wastewater <br /> <br />system. <br /> <br />B. <br /> <br />Svstem Wastewater Loadiol! Data <br /> <br />A review of the data on wastewater treatment obtained from the City indicates that the facilities <br /> <br />have performed well under normal loading conditions. The following table shows the range of <br /> <br />flow and wastewater influent strengths for the test year. <br /> <br />Cityo/Paris. Tetas <br />Water and Wastewater Cost o/Service Study <br />March 2003 <br /> <br />22 <br />