Infiltration basin - system construction inspection checklist
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 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. Embankment | ||
| Anti-seep collar or filter diaphragm per plans | ||
| Fill material per specifications | ||
| 4. Final Excavation | ||
| Drainage area stabilized | ||
| 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 operational | ||
| Comments: | ||
| Actions to be taken: | ||