Why Old Town Chinatown needs this specifically
Old Town Chinatown’s oldest surviving buildings often have odor trapped in below-street plumbing spaces with undocumented history, so source identification has to account for infrastructure age most buildings elsewhere don’t have.
What to know before you call
Persistent odor after cleanup usually means contamination remains in porous materials — see the sewage odor removal hub for the full source-identification process. See the full sewage odor removal breakdown →