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[[Common problems and how to troubleshoot them for bioretention and infiltration practices]] | [[Common problems and how to troubleshoot them for bioretention and infiltration practices]] | ||
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==Maintenance Costs== | ==Maintenance Costs== | ||
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https://docs.google.com/spreadsheets/d/1TNGVghLhudcWPgXKLbLAu2cUWv6O3ZeS7-FIuLSGIPM/edit#gid=0 | https://docs.google.com/spreadsheets/d/1TNGVghLhudcWPgXKLbLAu2cUWv6O3ZeS7-FIuLSGIPM/edit#gid=0 | ||
− | Example O&M Plans, Checklists, Reports, and Maintenance Agreements | + | ==Example O&M Plans, Checklists, Reports, and Maintenance Agreements== |
+ | *Operation & Maintenance Plan | ||
+ | **[https://www.countyofnapa.org/DocumentCenter/View/3028/Example-OM-Plan-for-Residential-PDF County of Napa, CA, Example Stormwater Treatment Facilities Operations and Maintenance Plan for a Commercial Project] | ||
+ | **[https://www.countyofnapa.org/DocumentCenter/View/3028/Example-OM-Plan-for-Residential-PDF County of Napa, CA, Example Stormwater Treatment Facilities Operations and Maintenance Plan for a Residential Project] | ||
+ | *Construction phase inspection checklist | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=File:Bioretention_-_construction_inspection_checklist.xlsx Bioretention construction inspection checklist] ([https://stormwater.pca.state.mn.us/index.php?title=Bioretention_-_construction_inspection_checklist link to table]) | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=File:Infiltration_basin_-_system_construction_inspection_checklist.xlsx Infiltration basin - system construction inspection] ([https://stormwater.pca.state.mn.us/index.php?title=Infiltration_basin_-_system_construction_inspection_checklist link to table]) | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=File:Infiltration_trench_construction_inspection_checklist.xlsx Infiltration trench construction inspection checklist] ([https://stormwater.pca.state.mn.us/index.php?title=Infiltration_Trench_-_Construction_inspection_checklist link to table]) | ||
+ | *O&M inspection checklist | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=File:Bioretention_-_operation_and_maintenance_checklist.xlsx Bioretention - operation and maintenance checklist] ([https://stormwater.pca.state.mn.us/index.php?title=Bioretention_-_operation_and_maintenance_checklist link to table]) | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=File:Infiltration_trench_basin_operation_maintenance_checklist.xlsx Infiltration trench basin operation maintenance checklist] ([https://stormwater.pca.state.mn.us/index.php?title=Infiltration_trench/basin_%E2%80%93_operation_and_maintenance_checklist link to table]) | ||
+ | *O&M example report | ||
+ | **[https://portal.laserfiche.com/Portal/DocView.aspx?id=3361965&repo=r-a96260ce MSD Example] | ||
+ | *Maintenance Agreements | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=Example_Maintenance_Agreement_1 Example Maintenance Agreement 1] | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=Example_Maintenance_Agreement_2 Example Maintenance Agreement 2] | ||
+ | **[https://stormwater.pca.state.mn.us/index.php?title=Example_Maintenance_Agreement_3 Example Maintenance Agreement 3] | ||
+ | |||
+ | ==Related pages== | ||
+ | *[[Operation and Maintenance of bioretention and other stormwater infiltration practices]] | ||
+ | *[[Operation and Maintenance of green roofs]] | ||
+ | *[[Operation and Maintenance of vegetated strips]] | ||
+ | *[[Operation and Maintenance of permeable pavement]] | ||
+ | *[[Operation and Maintenance of tree trenches and tree boxes]] | ||
+ | *[[Operation and Maintenance of vegetated swales]] | ||
+ | *[[Operation and Maintenance of stormwater treatment wetlands]] | ||
+ | *[[Operation and Maintenance of rainwater harvesting]] | ||
+ | Supplemental guidance | ||
+ | *[[Supplemental guidance - operation and maintenance of bioretention and other stormwater infiltration practices]] | ||
+ | *[[Supplemental guidance - operation and maintenance of green roofs]] | ||
+ | *[[Supplemental guidance - operation and maintenance of vegetated strips]] | ||
+ | *[[Supplemental guidance - operation and maintenance of permeable pavement]] | ||
+ | *[[Supplemental guidance - operation and maintenance of tree trenches and tree boxes]] | ||
+ | *[[Supplemental guidance - operation and maintenance of vegetated swales]] | ||
+ | *[[Supplemental guidance - operation and maintenance of stormwater treatment wetlands]] | ||
+ | *[[Supplemental guidance - operation and maintenance of rainwater harvesting]] | ||
Operation and Maintenance of Bioretention and Other Stormwater Infiltration Practices
Overview of Typical O&M Issues Bioretention practices and other stormwater infiltration practices like rain gardens and infiltration trenches are vegetated landscape practices that capture, filter, and infiltrate stormwater runoff. In addition, these practices can provide ecosystem services such as nutrient cycling and storage, carbon sequestration, reduction in heat island effect, climate adaptation, and habitat for bees, butterflies, and other insects and small animals that pollinate. Bioretention and other infiltration practices may be subject to higher public visibility, greater trash loads, pedestrian traffic, vandalism, and vehicular loads, particularly in urban areas.
These practices require dedicated and regular maintenance to ensure proper and long-lasting operation and ecosystem benefits. The most frequently cited O&M concerns for infiltration practices include:
The sections below describe best practices to prevent or minimize these common problems.
Designers should design bioretention and infiltration practices in ways that prevent or minimize O&M issues. Examples include:
Designers should also recognize the need to perform frequent landscaping maintenance to remove trash, check for clogging, and maintain vigorous and healthy vegetation. Designers can incorporate design solutions to facilitate maintenance activities. Examples include:
The designer should also provide a site-specific O&M plan that includes the following:
Example O&M plans are provided further down.
For more design information and criteria for individual infiltration practices, see the “design criteria for bioretention” or “design criteria for infiltration practices” pages.
Construction Phase O&M Considerations Proper construction methods and sequencing play a significant role in reducing O&M problems. Some key items during the construction phase include:
Effective short and long-term operation of bioretention and infiltration practices requires dedicated and routine maintenance. Proper maintenance will not only increase the expected lifespan of the facility but will improve ecological function, aesthetics, and property value. Important post-construction considerations are provided below.
Overview and schedule of general maintenance activities for bioretention and infiltration practices
Common problems and how to troubleshoot them for bioretention and infiltration practices
Maintenance costs will vary depending on the size of the practice, its contributing drainage area, type of plantings, and whether it is part of a larger GI effort. Preventative maintenance is key to minimizing major costs associated with repairs. A general rule of thumb to estimate maintenance costs is 3%-6% of the installation costs. Maintenance may be higher the first few years, while plants are being established.
Additional Detailed O&M Information
MPCA has compiled publicly available O&M resources related to green infrastructure. This non-exhaustive catalog is intended as a resource to practitioners. https://docs.google.com/spreadsheets/d/1TNGVghLhudcWPgXKLbLAu2cUWv6O3ZeS7-FIuLSGIPM/edit#gid=0
Supplemental guidance