Remove liquid and porous contamination
Extraction uses equipment and handling procedures reserved for the dirty zone. Carpet, pad, absorbent wall finish and other porous materials touched by sewage commonly require removal because reliable cleaning may not be possible. Debris is contained before it leaves the work area.
Properties near Maplewood Mall, Joy Park and Aldrich Arena receive the same building specific assessment. Named locations do not indicate drain layout or backup likelihood. The observed waste boundary and material contact determine the scope.
