Benefits
  • Sustainable Low Impact Development (LID) replicates predevelopment hydrology by utilizing the natural filtration and bioremediation processes in soils.

  • Integrates trees with stormwater conveyance to achieve decentralized stormwater management.

  • Custom designed Systems” allow for use in a variety of situations, from new suburban construction to tight urban retrofit, where excessive impervious, paved area exists.

  • System components are comprised of greater than 90% natural materials and post consumer recyclable content.

  • Provides both quality control and quantity control by infiltration.

  • Greater pollutant removal efficiencies than conventional catch basins or conventional infiltration systems.

  • Ease of maintenance by DPW at curbside via vactor, clam shell, or rake and shovel.

 Sample tree box

Expected Pollution Rates for Bioretention Systems and Tree Filter Systems*

Total Suspended Solids: 

>83%

Total Nitrogen:

>50%

Total Phosphorous:

>60%

Total Select  Metals:     

35% to 95%

Total zinc:

 

>85%

Oil and Grease

>80%

Bacteria:

>85%

* Based upon published 3rd party testing by University of New Hampshire Stormwater  Center; University of Massachusetts Stormwater  Technologies Clearinghouse; University of  Virginia Stormwater Center
 
  • Follows Department of Environmental Protection primary recommendation for direct infiltration at source, reducing the impacts of development.

  • Meets or exceeds federal and state regulatory guidelines for stormwater management systems.

  • Small footprint: an approximately 6x6 ft. unit can treat stormwater from up to a 0.50 acre paved area.

  • Open system design allows for tree root growth outside the perimeter of the storage chamber so that trees can grow larger and live longer without sidewalk “lifting”.

  • The systems can be designed to meet H-20 loading requirements.

  • Combines aesthetically pleasing landscaping elements with efficient stormwater treatment.

  • A wide variety of suitable native tree and plant species are available for use.

  • A selection of hardscapes, such as granite, traverstone, brick and concrete pavers, and metal or fiberglass tree grates, can be used.
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