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<br />DRAFT REPORT <br /> <br />Excess Strength Charge <br />BOD $0.78/lb above 250 mg/l <br />TSS $0.43/lb above 250 mg/l <br />NH3 $0.50/lb above 30 mg/l <br /> <br />The City implemented R.W. Beck's recommendation of billing Residential wastewater <br />customers on a flat winter average. The flat winter average assumes that a residential customer's <br />monthly wastewater volumes on average will reflect the winter average, that is, some months the <br />residential customer will contribute more to the wastewater system and some months will <br />contribute less. Commercial and industrial customers should continue to be billed on the basis of <br />100 percent of the actual metered water consumption except those customers whose wastewater <br />is metered. The latter should be billed for 100 percent of the metered wastewater. <br /> <br />Unit charges for BOD, TSS and ammonia are computed so that individual customers that exceed <br /> <br />the limits adopted on the basis of domestic wastewater can be charged for excess strength <br /> <br />according to the unit charges in the rate schedule on Table C-6 in Appendix C. <br /> <br />City of Paris, Texas <br />Water and Wastewater Cost of Service Study <br />May 2005 <br /> <br />23 <br />