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Stormwater Outlets. Effectiveness of the Options. Stormwater Outlets. Several options are available, such as the infiltration basins under the parking lots on campus.

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stormwater outlets

Stormwater Outlets

Effectiveness of the Options

stormwater outlets1
Stormwater Outlets
  • Several options are available, such as the infiltration basins under the parking lots on campus.
  • Pollutants must be considered when dealing with stormwater. The guidelines call for New Jersey call for suspended solids to be reduced by at least 80%, and for nutrient content to be reduced by the maximum feasible amount.
  • Rooftop runoff is considered “clean,” and can therefore be dealt with through different strategies that don’t remove pollutants.
bioretention cells
Bioretention Cells
  • Use native plants and organic layers to filter stormwater as it infiltrates into the ground.
  • Native plants have the added benefit of requiring less maintenance and watering.
  • A list of native plants can be found at
  • Can be easily added to existing buildings.
  • Cost efficient.

rain gardens and stockton
Rain Gardens and Stockton
  • Stockton is an ideal environment to become a leader in bioretention research.
  • The sandy soils in the Pinelands facilitate quick drainage.
  • Relatively uniform topography would help keep construction costs down, as well as provide numerous areas to perform research.

Raingarden in the Pinelands

vegetative filters
Vegetative Filters
  • Areas of vegetation designed to remove pollutants from runoff.
  • Stormwater must enter and flow through filter as sheet flow for effective removal capabilities.
  • Design must incorporate an evenly graded slope, determined by both the vegetation and soil type.
  • Indigenous plants are most effective.
constructed stormwater wetlands
Constructed Stormwater Wetlands
  • Designed to handle runoff from areas from 10 to 25 acres.
  • Remove high percentages of pollutants.
  • Provides new habitat for wildlife.
  • Not suitable in areas of existing wetlands.

infiltration structures
Infiltration Structures

  • Designed to allow stormwater to recharge groundwater while removing pollutants.
  • Must be designed to drain within 72 hours to prevent water quality and mosquito problems.
  • Should not be used in areas with high levels of pollutants, to prevent contamination of groundwater.
pervious paving
Pervious Paving
  • Used to decrease runoff from paved areas.
  • Suitable for light duty applications, such as parking lots and sidewalks.
  • Can be used to decrease demand on other structural systems.

dry wells
Dry Wells
  • Dry wells are specialized infiltration structures designed to recharge groundwater with clean roof runoff.
  • They do not remove pollutants, so they cannot be used to handle other stormwater.

green roofs
Green Roofs
  • Vegetative cover on roofs of buildings.
  • Can reduce runoff by up to 75%.
  • Have the added benefit of adding to the heating and cooling efficiency of the building.