Informative Links

Post-Construction Stormwater Permitting Map

NC Surface Water Classifications Inter-active Map

Trout Stream Frequently Asked Questions Brochure

Stormwater Rules and Regulations Webpage

State Stormwater Design Manual Webpage - This webpage contains the following information: 

  • Supplemental EZ Forms
  • Operations and Maintenance Agreement EZ Forms
  • Stormwater Control Measure Credit Document
  • State Design Manual
  • Common Site and SCM Elements
    • Areas of Research Needed
    • Runoff Treatment and Volume Matching
    • Soils
    • Vegetation
    • Built-Upon Areas
    • Common Structures and Materials
    • Construction
    • Operation and Maintenance
    • Guidance on SCM Selection
  • Calculation Guidance
  • Minimum Design Criteria (MDC) and Recommendations for Stormwater Control Measures
    • MDC for all SCM's
    • Infiltration Systems
    • Bioretention Cell
    • Wet Pond
    • Stormwater Wetlands
    • Permeable Pavement
    • Sand Filter
    • Rainwater Harvesting
    • Green Roof
    • Level Spreader-Filter Strip
    • Disconnected Impervious Surface
    • Treatment Swale
    • Dry Pond
  • Minimum Design Criteria and Recommendations for New Stormwater Technologies
    • StormFilter
    • Silva Cell Suspended Pavement with Bioretention
    • Filterra
    • BayFilter
  • Guidance for Specific Types of Sites
    • Low Density
    • SIngle Family Homes with BUA Limits
    • Retrofits
    • Airports
    • Linear Transportation and Greenways
    • Solar Farms
  • Guidance for New Stormwater Technologies