Clean water: Municipal MS4 storm water compliance assistance and guidance

Guidance on applying for industrial and construction permits for municipalities

Most requested permitting forms

change of contact, modification, transfer, application supplement, termination request, annual report forms, etc.

Application and Measureable Goal guidance

• WQCD guidance for assuming MS4 permit liabilities.
• Colorado Phase II resource list for municipalities.
• ​Non-standard municipal guide(Urban Area Maps).

Discharges without a permit: policies and guidance documents

• Cosmetic power washing operations discharges to land policy.
• Discharge of potable water policy.
• Discharges from potable water monitoring devices policy.
• Discharges from water-based fire suppression systems (Clean Water Policy 5).
  • Guidance for discharges associated with fire suppression systems.
• Hot springs policy.
• MS4 Low Risk Discharges Policy guidance.
• Rural roadway culvert flushing by public entities policy.
• Snow melting machines policy.
• Swimming pools policy.
• Uncontaminated groundwater discharges to land policy.
• WQP 27 Low Risk Discharges Policy