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Infiltration Trench - Construction inspection checklist

To access an Excel version of form (for field use), click here.

Project:
Location:
Site Status:
Date:
Time:
Inspector:
Construction Sequence Satisfactory / Unsatisfactory Comments
1. Pre-Construction
Pre-construction meeting    
Runoff diverted    
Soil permeability verified    
Groundwater / bedrock verified    
Project benchmark established    
Facility location staked out    
Temporary erosion and sediment control established    
2. Excavation
Size and location per plans    
Side slopes stable    
Depth adjusted to soil layer with specified soil type and permeability    
Sub-soil not adjacent to excavation area and stabilized with vegetation and/ or silt fence    
Stockpile location not adjacent to excavation area and stabilized with vegetation and/ or silt fence    
3. Filter Fabric Placement
Fabric per specifications    
Fabric per specifications    
Placed per plan location    
4. Aggregate Material
Size as specified    
Clean / washed material    
Placed properly    
5. Observation Well
Pipe size per plans    
Under-drain installed per plans    
Inlet installed per plans    
Pre-treatment devices installed per plans    
6. Vegetation
Complies with planting specifications    
Topsoil complies with composition and placement in specifications    
Permanent erosion control measures in place    
7. Final Inspection
Dimensions per plans    
Check dams operational    
Inlet / outlet operational    
Effective stand of vegetation and stabilization    
Contributing watershed stabilized before flow is routed to the facility    
Comments:
Actions to be taken: