J_2024 05 09_West Orange Stormwater Management Plan

emove manhole lids to expose filter bed of media and access ladder, enter filtration chamber through access riser, (note: water will be present at very minimal depths prior to cleanout during the inspection) 3. Remove bulkhead door as shown in Figure 3. 4. Remove filter grate covers/cargo nets and filters through manway risers along the chamber. 5. Visually inspect the filter medial noting the color and saturation of containments (TSS, oils, grease, etc.) 6. If media is dark brown to black, the media is fully spent and should be replaced. (See Figure 4). 7. Contact AquaShield™ Maintenance Department for replacement bags at 888-344-9044. 8. Schedule cleaning (See "Cleaning" Figure 5). vV, Figure 3 Figure 4 Diversion Structures diversion structure is present on the site, this should be inspected for the following items. ispect weir or other structure for structural decay or damage. Weirs are more susceptible to damage than off-set piping and should ue checked to confirm that they are not crumbling, in the case of concrete or brick weirs, or decaying if a steel weir was used. 2. Inspect diversion structure and by-pass piping for signs of structural damage or blockage from debris or sediment accumulation. 3. Measure elevations on diversion weir or piping to ensure it Is consistent with site plan design. 4. Inspect downstream structure in diversion system for signs of blockage or structural failure. IpSSgij Schedule cleaning with local vactor company or AquaShield™'s Maintenance Department to remove sediments, oils, and other floatable pollutants with a vactor trailer. The spent filters and sediment generally do not require any special treatment or handling for disposal. The filter media can be recycled as fuel material, sent to a subtitle D landfill. AquaShield recommends that all materials removed during the maintenance process be handled and disposed of in accordance with local and state requirements. ' MS Figure 5 Aqua-Filter™ I and M Manual Page 2