Fitchburg has older combined sewers that carry stormwater and sewage together, and the city's DPW asks residents to call its dispatcher for sewage backups as well as weather related flooding.
Why sewage gets its own protocol
Sewage carries bacteria and viruses, so the crew treats it as Category 3 water. Workers wear protective suits, masks and gloves, seal the area with plastic and run negative air so airborne contamination stays contained while materials come out.
- Carpet, pad, insulation and soaked drywall are removed and bagged
- Hard surfaces are cleaned and then treated with an antimicrobial
- Contents are sorted into what can be cleaned and what must go
- Drying equipment starts only after the contamination is gone



