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Site Development

Minimum Design Criteria (MDC) for Stormwater Systems

Below you will find the rules on minimum design criteria (MDC) for stormwater treatment devices listed in the North Carolina Stormwater BMP Manual.

Supporting Documents

PDF icon Minimum Design Criteria (MDC) Requirements that apply to all projects (16 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to infiltration systems (8 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to bioretention cells (10 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to wet ponds (10 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to wetlands (11 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to permeable pavement (10 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to sand filters (8 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to rainwater harvesting (9 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to green roofs (7 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to level spreaders - filter strips (9 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to disconnected impervious surface (8 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to treatment swales (8 KB)
PDF icon Minimum Design Criteria (MDC) Requirements that apply to dry ponds (8 KB)
PDF icon Minimum Design Criteria (MDC) Requirements compiled (292 KB)
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  • Site Development
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  • Staff
  • Professional Listings for Civil Engineers, Landscape Architects, and Land Surveyors in Henderson County NC
  • Fee Schedule FY 2023-2024
  • Erosion Control Local Program
    • NEW SUBDIVISION - Standard Drawings for Single Family Dwelling Lot construction sites
    • Does your property qualify? (Brush Removal Permit)
    • Soil Erosion and Sediment Control Plan Requirements UPDATED 7-21-2022
      • Applications (One acre of more of land disturbance)
      • NPDES (NCG01) Construction Requirements (One acre or more) Mandantory to be on plans.
    • Helpful Information
      • How to transfer an Approved Soil Erosion and Sedimentation Control Plan
      • Exemptions from Local Programs
      • Complaints for Land Disturbance
      • How to address water drainage from adjoining parcels? (NCGS 77-13; NCGS 77-14 & Various other Brochures)
  • Floodplain Development (Unincorporated Henderson County)
    • Ordinance Article VIII. Natural Resources Subpart A
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    • Requirements for Solar Array Projects located in SFHA
  • Stormwater Phase II Local Programs (Multiple Jurisdictions)
    • Process to have a NEW TECHNOLOGY APPROVED for use as Structural BMP
    • Airport within 5 miles of project?
    • Inter Active Map (Post-Construction Stormwater Permitting Map)
    • Informative Links
    • Minimum Design Criteria (MDC) for Stormwater Systems
    • Transfer Ownership of SW permit to New Owner
    • Permit Renewal (High Density Permits evry 8 years)
    • Stormwater LID and Storm EZ
    • Stormwater Ordinance (Town of Fletcher)
    • Stormwater Ordinance (Town of Laurel Park)
    • Stormwater Ordinance (Henderson County and Village of Flat Rock)
    • Standard Process and Forms
    • Quantity Only
    • Close Out Requirements (High and Low Density)
    • Close Out Requirements (Quantity)
  • Watershed Local Program (Multiple Jurisdictions)
    • Inter Active Map (Water Supply Watershed Permitting Map)
    • Informative Links
    • Water Supply Watershed Ordinance Henderson County
    • Water Supply Watershed Overlay Districts
    • Minimum Design Criteria (MDC) for Stormwater Systems
    • Requirements and Forms
    • Stormwater LID and Storm EZ
    • Close Out Requirements for Water Supply Watershed

Contact Information

SITE DEVELOPMENT DEPT.  (Permitting for Private Development)
HOURS OF OPERATION:

MONDAY - FRIDAY (EXCL HOLIDAYS)
8:00 AM TO 4:30 PM

PHONE:

828-694-6553 - Engineer

828-694-6521 - Site Inspector

828-694-6627 - Floodplain Administrator

Disciplines Include:

Soil Erosion 

Floodplain Development

Stormwater Phase II

Water Supply Watershed

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