La Farge Library

Volunteer support over Memorial Day weekend 2012 led to the implementation of three bio-retention basins at the La Farge Library in Santa Fe.  Capacity of the basins ranges between 1,400 to 2,200 gallons (see table below).  Basins were planted with catalpa, green ash, Skyline honey locust, mountain mahogany, big bluestem grasses, Apache plume, and other native or drought tolerant vegetation species.  The improved canopy cover area is expected to exceed 2,500 square feet once plants are mature.

Basin Approximate Drainage Area (square feet) Basin Dimensions (feet) Basin Volume Capacity (gallons) Annual Catchment Assuming 12” of Precipitation (gallons)
Western

2,750

15x10x2

2,244

16,456

Southern

2,400

14x10x2

2,094

14,362

Southeastern

1,275

12x8x2

1,436

7,629

A green ash and western catalpa are a couple of trees that will help shade the southern perimeter of the La Farge Library parking lot.  With over 2,000 gallons of water holding capacity in the basin, these trees should flourish in future years.

A curb-cut will help provide passive irrigation to a Skyline honey locust near the eastern edge of the La Farge Library parking lot.  This basin includes big bluestem grasses to assist with degrading petroleum products and indigo bush to attract pollinators.


Runoff from an intense afternoon thunderstorm in August 2012 is captured in the western bio-retention basin at La Farge Library.