Infiltration BasinDesign Notes

• Failure rates of 25 to 100% recorded in the field

• Pretreatment with settling basin is recommended

• Partially excavated basins should not be used as sedimentation basins during construction

• Final excavation should be deferred until all contributing areas have been stabilized or protected

• A 6 to 12 inch layer of filter material (e.g., coarse sand) is recommended to prevent the builup of impervious deposits on the soil surface. This layer can be replaced when it becomes clogged.

Previous slide

Next slide

Back to first slide

View graphic version

Specific considerations associated with infiltration basins are listed in this slide.