For Inspector For Maintenance Crew Component No. Component Name Inspection Item and Inspection Item No. Result Preventative / Corrective Maintenance Actions A1 Pretreatment (Forebay) 1 Scouring or erosion is present at inlet structure and/or riprap apron Y__ N__ Check the flow diversion device before the inlet pipe and whether the bypass flow channel is clogged Work Order # __________ 2 Clogged pipes or excessive sediment in the forebay Y__ N__ Remove sediment or debris 3 Damaged outlet structure (e.g., cracking, subsidence, spalling, erosion, or deterioration) Y__ N__ Repair or replace the outlet structure Work Order # __________ A2 Pretreatment (MTD, if installed) 1 MTD inspection Y__ N__ (If a MTD is used for pretreatment, see manufacturer’s maintenance manual) A3 Pretreatment (Structural BMP) 1 BMP inspection Y__ N__ (See BMP No. ________ Field Manual) Note:
B1 Surface Wetland 1 Standing water is present after the design drain time The observed drain time is approximately _________ hours. Y__ N__ Check whether the outlet is clogged Check whether the perforated riser is clogged Clear and remove any clogs Remove any sediment buildup Work Order # ______________ 2 Mosquito breeding Y__ N__ Check if standing water is present A physical barrier such as foam or mesh may be installed after careful hydraulic analysis of clogging Refer to the county’s mosquito control agencies for guidance Work Order # __________ 3 Excessive dead vegetation on wetland surface Y__ N__ Remove dead vegetation according to the Landscaping Plan 4 Excessive sediment, silt, or trash accumulation on wetland surface Y__ N__ Clean pretreatment system Remove silt, sediment, and trash Work Order # __________ 5 Erosion or channelization is present on wetland surface Y__ N__ Check whether the flow bypass or diversion device is clogged Check if excessive sediment on the side of the wetland Work Order # __________ Note:
B2 Subsurface Gravel Cell 1 Sediment buildup in gravel bed Y__ N__ If sediment buildup is preventing flow through the wetland or reducing storage volume, remove gravel and sediment from the cell(s), replace with clean gravel, and replant vegetation. Work Order # __________ A permit may be required to discharge when emptying the system. Contact NJDEP Division of Land Use Regulation before discharging. 2 Dead vegetation or soil in the outlet control structure Y__ N__ Check whether the perforated riser is damaged and allows soil or dead vegetation into the pipe Check whether sediment is deposited above the riser perforations Work Order # __________ Note:
C Vegetation 1 Invasive plants are present Y__ N__ Remove the invasive plants and restore the vegetation in accordance with the landscaping plan Work Order # __________ 2 Growth of trees or bushes in the wetland Y__ N__ Remove trees and bushes Check whether the wetland soil layer or the transition layer have been damaged by tree roots Work Order # __________ D Surface Wetland Embankment and Side Slopes 1 Signs of erosion, soil slide or bulges, seeps and wet spots, loss of vegetation, or erosion on the basin slope Y__ N__ Check for excessive overland runoff flow through the embankment. Check for any sink hole development Direct the overland runoff to the forebay or pretreatment area Restabilize the bank Work Order # __________ Note:
E Outlet 1 Trash or debris accumulation more than 20% Y__ N__ Clean and remove Determine source of trash and address to reduce future maintenance costs or basin failure 2 Trash rack is damaged or rusted greater than 50% Trash rack is bent, loose, or missing parts Y__ N__ Repair or replace trash rack Work Order #__________ 3 Outlet components (e.g., orifice plates or weir plate) skewed, misaligned, or missing Y__ N__ Repair or replace component Work Order #__________ 4 Discharge pipe apron is eroded or scoured Y__ N__ Restabilize the discharge riprap apron Work Order #__________ 5 Standing water is present in the outlet structure longer than 72 hours Y__ N__ Pump out the standing water Work Order # __________ F Emergency Spillway 1 Trees or excessive vegetation present Y__ N__ Remove trees and roots, and restore berms if necessary Work Order #________ 2 Damaged structure Y__ N__ Repair Work Order #________ Note: