All nonresidential sewer customers are subject to evaluation to determine if they are required to pay a sewer extra strength charge (ESC). Nonresidential sewer customers whose wastewater discharges exceed or have the potential to exceed residential levels of biochemical oxygen demand (BOD) or total suspended solids (TSS) shall pay an ESC in an amount established by Council resolution, consistent with the provisions of this chapter. [Ord. NS-2242, 2015; Ord. NS-2212, 2014]