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Table 1

Summary of Bingham and Raeford site characteristics

Bingham pondRaeford pond
Location (Latitude and longitude) 35°0′58″N, 78°59′11″W 35°2′30″N, 78°59′43″W 
Date constructed March 2011 June 2012 
Permanent pool surface area (ha) 0.12 0.08 
Forebay area as a percentage of permanent pool area 20 20 
Mapped underlying soil/HSG* Autryville loamy sand/A Candor sand/A 
Drainage area (ha) 2.37 1.94 
Drainage area imperviousness (%) 77 44 
Depth to SHWT (m) >1 <1 
Pre-construction infiltration rate (mm/hr) 356/399 Not measured 
Outlet structure 3 m diameter round riser 1.5 × 1.5 m square riser 
Drawdown orifice diameter (cm) 3.8 
Temporary pool depth (m) 0.45 0.9 
Bingham pondRaeford pond
Location (Latitude and longitude) 35°0′58″N, 78°59′11″W 35°2′30″N, 78°59′43″W 
Date constructed March 2011 June 2012 
Permanent pool surface area (ha) 0.12 0.08 
Forebay area as a percentage of permanent pool area 20 20 
Mapped underlying soil/HSG* Autryville loamy sand/A Candor sand/A 
Drainage area (ha) 2.37 1.94 
Drainage area imperviousness (%) 77 44 
Depth to SHWT (m) >1 <1 
Pre-construction infiltration rate (mm/hr) 356/399 Not measured 
Outlet structure 3 m diameter round riser 1.5 × 1.5 m square riser 
Drawdown orifice diameter (cm) 3.8 
Temporary pool depth (m) 0.45 0.9 

HSG, Hydrologic Soil Group.

SHWT, Seasonal High Water Table.

*Soil survey staff (2015).

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