Stormwater Discharge Permit
MS4 Permit
Arizona Department of Environmental Quality issued the ADOT Municipal Separate Storm Sewer System Permit (MS4 Permit) on July 17, 2015 with an effective date of August 16, 2015.
ADOT MS4 Stormwater Management Plan (SWMP)
Permit Annual Reports
These reports discuss components of the SSWMP implemented by ADOT, proposed changes to the SSWMP, summary of data collected throughout the reporting year, annual expenditures, enforcement actions, inspections, public education programs, and water quality improvements or degradation.
2019 Annual Report
Stormwater Management Plan Annual Report - 2019
- Appendix A: Dry Weather Screening
- Appendix B: Construction Inventory
- Appendix C: PCBMP Inventory
- Appendix D: Erosion Projects
- Appendix E: Facility Inventory
- Appendix F: Sampling Event Data and Lab Reports
- Addendum: 4th Year Renewal Application information
- Attachment 1: MS4 Route Mapping Prioritization Parameters
- Attachment 2: Receiving Waters
- Attachment 3: Current Mapping
- Attachment 4: Current SWMP
