1. Keystone Laboratories
3012 Ansborough Ave, Waterloo, IA 50701
Coordinate: 42.47067,-92.37705
Phone: (319) 235-4440
2. Quad City Testing Laboratory
2000 Westfield Ave, Waterloo, IA 50701
Coordinate: 42.50469,-92.367256
Phone: (319) 232-8084