Soiled water from homes, businesses and other buildings destined for treatment plants. Water in the combined sewer system becomes wastewater even when a mix of stormwater and wastewater.
Wastewater
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ALERT: With many StL area stores changing hours, some MSD bill pay locations may be impacted. You can still pay your wastewater bill via the lobby drop box at 2350 Market St. (M-F, 8:30am – 4:30pm), at Pay Online, or by calling 866-281-5737.