Roof drain piping routed out to a "drywell" that consisted of one
course of cesspool block and a concrete cover.


Roof drain piping routed out to a 'drywell' that consisted of one course
of two courses of red brick and a plastic garbage can lid.


30 yr old drywell structure installed in well draining material that failed due to
silt and sediment migration into the surrounding soils b/o lack of maintenance.


30 yr old drywell structure installed in well draining material that failed due to silt and
sediment migration into the surrounding soils b/o lack of maintenance.