The Department of Public Works is charged with the management, operation and maintenance of 6 wastewater treatment facilities, over 60 wastewater pumping stations, and in excess of 300 miles of sewer line.

• Currently there are 6 County wastewater facilities in the system with a total permitted treatment capacity of approx. 5.0 million gallons per day.
• In addition to County facilities, approx. 5.0 million gallons per day of treatment capacity is contracted through the City of Monroe and Charlotte-Mecklenburg Utilities.
• Wastewater pumping stations are located throughout the collection system and are used to pump wastewater uphill. These pump stations are equipped with both a visual alarm (red light) and an audible alarm (horn). If you see or hear an alarm sounding on a County station, please call (704) 296-4210 or (704) 289-1591 immediately. Public Works will quickly dispatch someone to investigate 7 days per week, 24 hours per day.
• Underground wastewater collection lines are located throughout the County. Please call (704) 296-4210 before you dig any holes. If there is County sewer in your area, any lines will be located by Public Works within 48 hours. If you see sewage spilling from a broken pipe or from a manhole, please call (704) 296-4210 or (704) 289-1591 immediately. Public Works will dispatch someone to investigate 7 days per week, 24 hours per day.
• For disposal of RV or potable tank sewage, you will need to call a port-a-jon or septic tank company.  Union County Public Works does not accept potable tank sewage.
• If you are an existing sewer customer and have questions regarding your service or your bill, please visit our Customer Service page for more information.