1. Engman Disposal 21 8th St S., Humboldt, IA 50548 Coordinate: 42.72049,-94.21904 Phone: (515) 332-4311
2. City of Humboldt 1400 13th St S, Humboldt, IA 50548 Coordinate: 42.70677,-94.22715 Phone: (515) 332-3723