Overflow events from sanitary sewers contribute untreated wastewater directly into local waterways and flow into the Chesapeake Bay. These untreated overflow events are a major public health hazard. Beyond the immediate threats to community health, the breakdown of untreated sewage in the natural environment increases pollutants, bacteria, and excessive nutrient loads in the water which upset the natural balance of the ecosystem and encouraging the growth of harmful algae.

The sanitary sewer systems are expected to be beyond capacity at times of high rainfall and permit overflow events in these cases. However, overflow events caused by blockages in the pipes from improper disposal of grease and other materials are completely avoidable with public education and participation.

These project efforts identified overflow events and targeted outreach messaging to those communities. By disseminating appropriate information and collecting pledges to encourage community participation, we hope to reduce avoidable overflow events, improve the water quality in the local waterways, and reduce stress on the Chesapeake Bay.