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{{alert|This page is an edit and testing page use by the wiki authors. It is not a content page for the Manual. Information on this page may not be accurate and should not be used as guidance in managing stormwater.|alert-danger}} | {{alert|This page is an edit and testing page use by the wiki authors. It is not a content page for the Manual. Information on this page may not be accurate and should not be used as guidance in managing stormwater.|alert-danger}} | ||
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| + | [[Operation and Maintenance of Stormwater Treatment Wetland Practices]] | ||
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| + | ==Overview of Typical O&M Issues== | ||
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| + | Stormwater treatment wetland practices are constructed depressions and pools planted with emergent aquatic or wetland vegetation. Wetlands typically remain wet due to relatively impervious sublayers and have retention times that allow pollutants to settle out of stormwater and into the sediment. The vegetated pools can provide excellent wildlife habitat, enhance nutrient cycling, sequester carbon, and offer aesthetic improvements to urban and rural areas if properly maintained. | ||
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| + | Wetlands can provide stormwater and other ecosystem services for many years if they are properly maintained. Typical lifespans range between 25 and 75 years, depending on local conditions and ongoing maintenance to the systems (Torres et al., 2015). The most common O&M concerns for stormwater wetland practices include: | ||
| + | *Erosion in the storage pools causing turbid effluent. | ||
| + | *Clogged inlets and outlets. Clogs may occur from accumulation of trash, debris, and sediment. | ||
| + | *Poor vegetative establishment. | ||
| + | *Overgrowth of unwanted vegetation. | ||
| + | |||
| + | The sections below describe best practices to prevent or minimize these and other common problems. | ||
Revision as of 15:09, 20 August 2021
Operation and Maintenance of Stormwater Treatment Wetland Practices
Overview of Typical O&M Issues
Stormwater treatment wetland practices are constructed depressions and pools planted with emergent aquatic or wetland vegetation. Wetlands typically remain wet due to relatively impervious sublayers and have retention times that allow pollutants to settle out of stormwater and into the sediment. The vegetated pools can provide excellent wildlife habitat, enhance nutrient cycling, sequester carbon, and offer aesthetic improvements to urban and rural areas if properly maintained.
Wetlands can provide stormwater and other ecosystem services for many years if they are properly maintained. Typical lifespans range between 25 and 75 years, depending on local conditions and ongoing maintenance to the systems (Torres et al., 2015). The most common O&M concerns for stormwater wetland practices include:
- Erosion in the storage pools causing turbid effluent.
- Clogged inlets and outlets. Clogs may occur from accumulation of trash, debris, and sediment.
- Poor vegetative establishment.
- Overgrowth of unwanted vegetation.
The sections below describe best practices to prevent or minimize these and other common problems.