1. Keystone Laboratories
3012 Ansborough Ave, Waterloo, IA 50701
Coordinate: 42.47067,-92.37705
Phone: (319) 235-4440
2. Snowden House Foundation
306 Washington St, Waterloo, IA 50701
Coordinate: 42.49439,-92.34579
Phone: (319) 234-3709
3. Quad City Testing Laboratory
2000 Westfield Ave, Waterloo, IA 50701
Coordinate: 42.50469,-92.367256
Phone: (319) 232-8084