Filtration - installation and maintenance recommendations
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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 [1] Sediment removed at least biannually of when buildup exceeds 2 inches in depth [2] Appropriate vegetation and landscaping maintenance; See Appendix [3] Generally $100-$1400 per acre [4]
Level-Spreader - Vegetative Filter Strip System (LS-VFS) Construction notes Quarterly and after every 1 in storm event for first two years, then biannually [5] Sediment removed at least biannually of when buildup exceeds 2 inches in depth [6] Appropriate vegetation and landscaping maintenance; See Appendix [7] Generally $100-$1400 per acre [8]
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 [9] Inspection and maintenance checklist Sediment removal at least once per year or once sediment depth is 16 inches [10] Routine maintenance for manhole unit takes about 1 hour [11]
Storm Clean One-person installation [12] Monthly [13] Maintenance instructions When visual inspection or water sampling show degradation. MetalZorb is non-hazardous and does not require special waste handling [14] Vactor truck or large shop vac; One person [15]
Gravel filtration After each rainfall Remove sediment from behind bag as needed
Filtration berm Construction sequence After each rainfall [16] Maintenance considerations Routinely remove accumulated trash and debris [17] Appropriate vegetation and landscaping maintenance (eg. mowing and level gradient restoration); See Appendix [18] Depends on height, length, width, and location of berm [19]
SiltSoxx R by Filtrexx Installation instructions Within 24 hours after rainfall event [20] Maintenance instructions Sediment removal from upslope side when accumulation has reached ½ the effective height of the Soxx [21]
StormExx Installation notes Every 90 days, frequent drive through inspection during leaf-fall and after storm events [22] Costs for one year of service and maintenance may be added to proposal [23] Quarterly general service, fall cleaning and cartridge replacement [24]

This page was last edited on 13 April 2020, at 17:58.

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