Overview and schedule of general maintenance activities for bioretention and infiltration practices
Overview and schedule of general maintenance activities for bioretention and infiltration practices.
Link to this table
| First Year of Operation | ||||
|---|---|---|---|---|
| Activity | Frequency | Time period | Level of effort | O&M benefit |
| Check that there is no ponding in the pre-treatment device and/or in the main treatment area. | At least twice after storm events > 0.5 inches | Within the first 6 months | < 1 hour | 1 |
| Check for evidence of clogging in the pre-treatment device and/or in the main treatment area. | At least twice after storm events > 0.5 inches | Within the first 6 months | < 1 hour | 1 |
| Check for evidence of clogging or failing of the inlet, outlet, and bypass pipes. | At least twice after storm events > 0.5 inches | Within the first 6 months | < 1 hour | 1 |
| Remove any stormwater diversion or barriers once seedlings are established. | Once | When plants are sufficiently established | 1-2 hours | 1,2,3,4,5 |
| Supplemental watering during drier periods, particularly if keeping stormwater offline until plant seedlings are established. | 1/week initially | During first 2 months | 1-2 hours | 2,3,4,5,6 |
| As needed | First growing season | 1-2 hours | 2,3,4,5,6 | |
| Remove and replace dead plants | As needed | First growing season | 2-4 hours | 2,3,4,5,6 |
| Spot reseeding of bare patches and eroding areas | As needed | First growing season | 2-4 hours | 1,2,3,4,5,6 |
| After First Year of Operation | ||||