MS4 General Permit Docs

The following documents are intended to provide information with regard to Allen County's compliance with the MS4 General Permit Water Quality Program regulatory requirements.

  1. 2022 Allen County Co-Permit Part C Stormwater Quality Management Plan MS4 General Permit Update (PDF)
  2. 2022 Allen County Co-Permit MS4 General Permit Notice of Intent Renewal Document (PDF)
  3. NPDES Phase II Storm Water Quality Management Plan (SWQMP) Water Quality Characterization Report (PDF)
  4. Notice of Intent Submittal, Part F General Discharge Information for MS4 Entities - MS4 Hydrologic Unit Code 12 Discharges (PDF)