Sludge is a mixture with a substantial suspended or settled solid component, often associated with water or wastewater processes.
What this means at your property
Material left by a backup or flood may include sediment and other substances. Its appearance does not establish whether it can be handled like ordinary dirt. Source information helps determine assessment, removal and disposal needs.
What should I tell the cleanup provider?
Describe where the material came from, the rooms or surfaces contacted and any chemicals or system information already known. Ask who will evaluate unknown contents and how removal will avoid spreading material into unaffected spaces.