Infiltration basin - system construction inspection checklist.
Link to this table
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 permeabilityn
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. Embankment
Anti-seep collar or filter diaphragm per plans
Fill material per specifications
4. Final Excavation
Drainage area stabilizeds
Sediment removed from facility
Basin floor tilled
Facility stabilized
Removable cap / footplate per plans
Initial depth = feet
5. Final Inspection
Pre-treatment facility operational
Contributing watershed stabilized prior to flow diversion
Inlet and outlet operationall
Comments:
Actions to be taken:

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