As authorized by the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) permit program controls water pollution by regulating point sources that discharge pollutants into waters of the United States.




DESC Permit Fee
is in addition to the Zoning Permit fees as approvied by the Trustees and are as follows:

  • 0 to 1 acre disturbance = $345.00
  • 1.01 to 5 acre disturbance = $575.00
  • 5.01 + acre disturbance = $920.00


The long term protection of water quality for Liberty Township residents is important
The Township is permitted as an MS4 (Municipal Separate Storm Sewer Systems) and as a Township, we must make sure our residents have access to educational materials and resources to make wise choices that affect our storm water quality. 


Six Minimum Control Measures of MS4 Communities


  • Public Education and Outreach - Distributing educational materials and performing outreach to inform citizens about the impacts polluted storm water runoff discharges can have on water quality.

  • Public Participation/Involvement - Providing opportunities for citizens to participate in program development and implementation, including effectively publicizing public hearings and/or encouraging citizen representatives on a storm water management panel.

  • Illicit Discharge Detection and Elimination - Developing and implementing a plan to detect and eliminate illicit discharges to the storm sewer system (includes developing a system map and informing the community about hazards associated with illegal discharges and improper disposal of waste).

  • Construction Site Runoff Control - Developing, implementing and enforcing an erosion and sediment control program for construction activities that disturb 1 or more acres of land. or disturbs less than one acre of land but is part of a larger common plan of development or sale that will ultimately disturb one or more acres of land” (controls could include silt fences and temporary storm water detention ponds).

  • Post-Construction Runoff Control - Developing, implementing and enforcing a program to address discharges of post-construction storm water runoff from new development and redevelopment areas. Applicable controls could include preventive actions such as protecting sensitive areas (e.g., wetlands) or the use of structural BMPs such as grassed swales or porous pavement.

  • Pollution Prevention/Good Housekeeping - Developing and implementing a program with the goal of preventing or reducing pollutant runoff from municipal operations. The program must include municipal staff training on pollution prevention measures and techniques (e.g., regular street sweeping, reduction in the use of pesticides or street salt, or frequent catch-basin cleaning).