When the average concentration of BOD exceeds 350 mg/l, and/or suspended solids exceeds 415 mg/l, a surcharge shall be added to the base user rate. The surcharge shall be calculated by dividing the annual treatment costs associated with treatment of BOD or suspended solids by the current average annual loading to the treatment plant. This surcharge shall be equal to $0.82/lb BOD and/or $0.694/lb of suspended solids in excess of the limit in 2022-2023. No credit shall be given for a waste where the BOD or suspended solids are less than the limit. All measurements, tests, and analysis of characteristics of water and wastes to determine the surcharge shall be conducted in conformance with § 51.047 of this code.
(1983 Code, § 21-115) (Ord. 2276, passed 12-6-1979; Am. Ord. 2566, passed 6-7-1990; Am. Ord. 2623, passed 1-9-1992; Am. Ord. 2662, passed 8-5-1993; Am. Ord. 2718, passed 8-10-1995; Am. Ord. 2748, passed 8-8-1996; Am. Ord. 2780, passed 8-7-1997; Am. Ord. 2838, passed 5-6-1999; Am. Ord. 3101, passed 4-7-2005; Am. Ord. 3144, passed 4-4-2006; Am. Ord. 3186, passed 5-1-2007; Am. Ord. 3219, passed 5-6-2008; Am. Ord. 3252, passed 6-2-2009; Am. Ord. 3288, passed 7-6-2010; Am. Ord. 3345, passed 7-10-2012; Am. Ord. 3424, passed 5-5-2015; Am. Ord. 3465, passed 5-19-2016; Am. Ord. 3545, passed 4-4-2019; Am. Ord. 3605, passed 5-6-2021; Am. Ord. 3624, passed 4-7-2022)