Filtration - installation and maintenance recommendations
Filtration - installation and maintenance recommendations
Link to this table
| Device | Installation notes | Frequency of inspections | Maintenance checklist (link) | Permitted on private land/ Maintenance agreement recommended | Practices for minimizing sediment and trash buildup | Practices for minimizing washout | Cost considerations (equipment needed and man hours) |
|---|---|---|---|---|---|---|---|
| Pretreatment vegetated filter strip (VFS | Construction sequence | Quarterly and after every 1 in storm event for first two years, then biannually | Sediment removed at least biannually of when buildup exceeds 2 inches in depth | Appropriate vegetation and landscaping maintenance; See Appendix | Generally $100-$1400 per acre | ||
| Level-Spreader - Vegetative Filter Strip System (LS-VFS) | Construction notes | Quarterly and after every 1 in storm event for first two years, then biannually | Sediment removed at least biannually of when buildup exceeds 2 inches in depth | Appropriate vegetation and landscaping maintenance; See Appendix | Generally $100-$1400 per acre | ||
| Up-Flo Filter | Every 6 months for first year of operation, then site specific. Floatables, sediment, media, and drain down filter each need to be inspected | Inspection and maintenance checklist | Sediment removal at least once per year or once sediment depth is 16 inches | Routine maintenance for manhole unit takes about 1 hour | |||
| Storm Clean | One-person installation | Monthly | Maintenance instructions | When visual inspection or water sampling show degradation. MetalZorb is non-hazardous and does not require special waste handling | Vactor truck or large shop vac; One person | ||
| Gravel filtration | After each rainfall | Remove sediment from behind bag as needed | |||||
| Filtration berm | Construction sequence | After each rainfall | Maintenance considerations | Routinely remove accumulated trash and debris | Appropriate vegetation and landscaping maintenance (eg. mowing and level gradient restoration); See Appendix | Depends on height, length, width, and location of berm | |
| SiltSoxx R by Filtrexx | Installation instructions | Within 24 hours after rainfall event | Maintenance instructions | Sediment removal from upslope side when accumulation has reached ½ the effective height of the Soxx | |||
| StormExx | Installation notes | Every 90 days, frequent drive through inspection during leaf-fall and after storm events | Costs for one year of service and maintenance may be added to proposal | Quarterly general service, fall cleaning and cartridge replacement |