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Preservation of Natural Stormwater Infrastructure
Suitability Analysis Summary

Map and score those natural areas where current conditions support maximum groundwater recharge and/or minimal stormwater runoff. Permanently preserve those areas.

Absolute factors

  • cannot already be protected
  • cannot be open water

Relative factors

  • in a Blue Infrastructure watershed
  • in area with well-drained soils
  • in a 100-year (1 points) or 500-year (½ point) flood plain
  • within 100 feet (1 point) or 500 feet (½ point) of a impaired (303-D listed) stream
  • in an area that drains to a 303-D listed stream
  • in a Tier II watershed
  • In a Stronghold Watershed (1 point for “1”; ½ point for “2”)
  • in Chesapeake Bay Commission Critical Area (LDA or RCA only)
  • in a Green Infrastructure hub or corridor
  • in an area of potential Forest Interior Dwellings Species Habitat
  • is forested riparian buffer (1 point if within 200’ of stream, 2/3 point if within 400’ of stream and 1/3 point if within 600’ of stream)
  • is forested
  • is relatively high in impervious surfaces
  • is forested near (200’) or in an area where impervious surfaces are relatively higher
  • in an unprotected Targeted Ecologic Area (GreenPrint)
  • within 200 feet of a protected Targeted Ecologic Area (GreenPrint)
  • is near (200’) but not in a protected Targeted Ecologic Area (GreenPrint)
  • in a Priority Funding Area
  • in a wetland

Potential areas for Preservation of Sustainable Hydrology Opportunities, greatest potential being a 5.  Score being a representation of data layers present at that point versus number of possible layers.


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Partner Sites:

US Environmental Protection Agency Region 3 Headquarters Army Corps of Engineers US Fish and Wildlife Service Federal Highway Administration Maryland State Highway Administration Green Highways Partnership Maryland Transportation Association Interstate Commision on the Potomac Maryland Department of Natural Resources Maryland Department of the Environment Charles County Prince George’s County Maryland Environmental Service