The goal of this program is to limit the amount of pollutants entering our streams and lakes through separate storm sewer systems. A separate storm sewer system is a stormwater collection and conveyance system (inlets, piping, swales, gutters, detention ponds, outlets) that is intended to carry only stormwater runoff. Separate storm sewer systems are not combined with sanitary sewer systems and generally discharge directly to a stream. The MS4 program requires regulated municipalities to develop and implement a stormwater management program that addresses six Minimum Control Measures (MCMs):

1. Public Education
2. Public Participation
3. Illicit Discharge Detection and Elimination
4. Construction Site Stormwater Management
5. Post-Construction Stormwater Management
6. Pollution Prevention and Good Housekeeping at Municipal Facilities

In Pennsylvania, this program is administered by DEP. The Dauphin County Commissioners designated DCCD as the entity responsible for ensuring that the county is in compliance with the terms of its permit. DCCD has developed a five-year plan to meet the six requirements listed above. The county plan is available for review by clicking on the appropriate link below. Public input on the plan is welcomed. Written comments may be emailed to Bob Christoff at rchristoff@dauphinc.org.

For more information on the Act 167 and NPDES MS4 programs, click here for the DEP website and type "stormwater" as the keyword.

Click here for an Adobe PDF file of Dauphin County's MS4 implementation plan.