The MS4 program (Municipal Separate Storm Sewer System) works on projects to collect or convey storm water runoff in Londonderry Township. Storm water can pick up debris, chemicals, dirt, and other pollutants and can flow into the storm sewer system, lake, stream, river, or wetland and pollute them.
The MS4 program (Municipal Separate Storm Sewer System) works on projects to collect or convey storm water runoff in Londonderry Township. Storm water can pick up debris, chemicals, dirt, and other pollutants and can flow into the storm sewer system, lake, stream, river, or wetland and pollute them.