2019 Senior Capstone - MS4 For the City of Easton

What is MS4?
* MS4: Municipal Separate Storm Sewer System.
* The Lehigh River has been identified as impaired with total suspended solids (TSS).
* Easton must reduce this sediment by 10% (60,670 pounds/year) over a 5 year period.

Pollution Reduction Plan Module:

• Create an online manual for the development of an EPA-Storm Water Management Model (SWMM)
• Complete a SWMM for the City of Easton
• Determine land use and physical parameters for the SWMM
• Develop a Best Management Practices (BMP) Module
• Analyze BMP locations and constraints through a Geographic Information System (GIS)

Compliance Module:

• Develop a GIS for the field inspection of BMPs
• Create an illicit detection and elimination program through GIS
• Public education, outreach, involvement, and participation

Modeling Objectives:

• Delineation of catch basin watersheds
• Integrate land use and physical parameters
• Integrate rainfall data
• Integrate proposed BMPs

Modeling Results:

• Determined storm sewer system capacity
• Determined TSS for 1 year – existing conditions
• Determined TSS for 1 year – proposed BMPs
• 5.2% TSS removal with proposed BMPs

BMP Types and Locations: