MiddleCE
Civil/Environmental
- Aug 28, 2008
- 10
I have a site that needs an interceptor drain to remove subsurface water from the soil above a proposed septic system leach field. This is to be installed upslope of the proposed leach field.
The soil is sandy loam over weathered sandstone. (About 4’ depth to the weathered sandstone)
Should a fabric be used to wrap the gravel in an attempt to keep fines out of the gravel? Could this plug up with fines and then prevent water movement into the gravel and pipe?
The plan had a filter fabric wrapping the gravel but the contractor did not install the fabric. Should this be replaced to match the plan?
3/4" clean drain gravel is used in the trench.
Thanks you for your comments.
The soil is sandy loam over weathered sandstone. (About 4’ depth to the weathered sandstone)
Should a fabric be used to wrap the gravel in an attempt to keep fines out of the gravel? Could this plug up with fines and then prevent water movement into the gravel and pipe?
The plan had a filter fabric wrapping the gravel but the contractor did not install the fabric. Should this be replaced to match the plan?
3/4" clean drain gravel is used in the trench.
Thanks you for your comments.