Common problems and how to troubleshoot them for bioretention and infiltration practices
Link to this table
Symtom | Possible causes | Solution |
---|---|---|
Standing water within the infiltration area for more than 48 hours | The surface of the ponding area may become clogged with fine sediment over time. This might be because the pre-treatment is no longer working, or there are excessive sediment loads due to erosion or high sediment loads from the contributing area. | *Clean the pre-treatment area with more frequency.
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Rainwater does not appear to flow to the infiltration area | Leaves, sediment, trash, or plant debris may be blocking the flow path. | Remove these materials on a regular basis |
Vegetation is not able to establish | Plant selection is inappropriate for the site | Consult with a landscaper or horticulturist. Check that plants are suited to the local conditions. Make sure BMP is protected from snow storage or salt application. |
Erosion or scouring around the inlet | Flow is obstructed by debris or improper grading | Correct for drainage and flow path issues to make sure flows are evenly distributed. Make sure the flow paths are unobstructed. |