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The purpose of this chapter is to regulate the city’s municipal separate storm sewer system (“MS4 or stormwater drainage system”) regarding the introduction of pollutants that would adversely impact surface and groundwater quality of the state of Washington in order to comply with requirements of the city’s National Pollutant Discharge Elimination System (“NPDES”) permit. Premises that do not discharge water or pollutants into the city’s MS4 or waters of the state do not fall under the purview of this chapter. The intent of this chapter is to:

(1) Control the introduction of pollutants to the stormwater drainage system by any person and/or entity.

(2) Prohibit illicit connections and discharges to the stormwater drainage system and receiving waters.

(3) Establish legal authority to carry out all inspection, surveillance, monitoring and enforcement procedures necessary to ensure compliance with this chapter. (Ord. 23-3 §1, 2023; Ord. 09-21 §2, 2009).