Alternative Stormwater Management Practices for Residential Projects

Stormwater runoff is a significant contributor to water pollution. From a housing perspective, stormwater runoff can lead to basement flooding (and its associated financial and health concerns) in regions with inadequate stormwater infrastructure. In the future developers and homeowners may see user-pay charges for stormwater based on lot size — a clear incentive to look at alternative stormwater management techniques.

Stormwater management

  • Constructed Wetlands
    Describes the constructed wetlands approach to storm or wastewater management.
  • Sand Filters
    Alternative Stormwater Management Practices for Residential Projects
  • Retention Ponds
    Retention ponds, also called wet ponds, maintain a permanent pool of water in addition to temporarily detaining stormwater. This permanent pool of water is the principal distinguishing feature between retention ponds and detention ponds.
  • Vegetative Practices
    Vegetation is often employed as part of a BMP system to slow runoff and help stormwater infiltrate the soil and settle particulates before entering another treatment device. Two frequently used vegetative measures, filter strips and grassed swales, are described here.
  • Urban Forestry
    This page describes the practice of urban forestry, reports on the effectiveness of different species in reducing stormwater runoff, presents an economic and financial analysis, and summarizes implementation issues associated with urban forestry schemes.
  • Infiltration Trenches
    A conventional infiltration trench is a shallow, excavated trench that has been backfilled with stone to create a narrow underground reservoir. Stormwater runoff diverted into the trench drains from the bottom of the trench into the subsoil and eventually to the water table. 
  • Downspout Disconnection
    Downspout disconnection represents a cost-effective on-site alternative for reducing the volume and cost of stormwater that requires public management.
  • Oil and Grit Separators
    Oil and grit separators are structures consisting of one or more chambers that remove sediment, screen debris, and separate oil from stormwater.

Canada

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