Informative Links

Water Supply Watershed 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

Part A - 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
• Vegetated Setback

Part B - Calculations

• Calculation Guidance

Part C - Minimum Design Criteria (MDC) and Recommendations for SCM's

• 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

Part D - Minimum Design Criteria and Recommendations for New Stormwater Technologies

• StormFilter
• Silva Cell Suspended Pavement with Bioretention
• Filterra
• BayFilter

Part E - 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