We manage stormwater quality through our Stormwater Program - Phase II general permit with Arizona Department of Environmental Quality (ADEQ). The ADEQ approved Stormwater Management Plan (SWMP) defines what and how the County maintains our stormwater quality permit.

• Small Municipal Separate Storm Sewer Systems (SMS4) General Permit
  • SMS4 General Permit
  • SMS4 Fact Sheet
  • County Stormwater Ordinance
  • AZPDES Stormwater Get New NOI – User Guide
  • SMS4 Notice of Termination
• Stormwater Construction General Permit (CGP)
  • AZG 2020-001 CGP
  • Fact Sheet 
  • Manage or terminate NOIs using myDEQ (electronic submission)
  • Stormwater Pollution Prevention Plan (SWPPP) Checklist
  • Small Residential Lot - Stormwater Pollution Prevention Plan Template
  • Stormwater Pollution Prevention for Small Residential Construction Sites
• For more information, visit the ADEQ Water Quality Division Website
• Pet Waste and Water Quality
• A video reminder to only allow rain into stormdrains.
• A video demonstration designed to raise community awareness that dog waste is toxic and is not "fertilizer" or "manure."