NPDES (CSO) 

National Pollutant Discharge Elimination System (NPDES): 

For information on Combined Sewer Overflows (CSO) events, click the following link:  http://geohub.mwrd.org/pages/cso

• CSO Operational and Maintenance Plan (PDF)
• CSO Pollution Prevention Plan (PDF)
• CSO Public Notification Program (PDF)

NPDES - Discharge Permits