Tri-State Laboratories, Inc.
2870 Salt Springs Road
Youngstown, Ohio
44509

Tel: (330) 797-8844
Toll Free: 1-800-523-0347
Fax: (330) 797-3264


Environmental Control Laboratories
38818 Taylor Parkway
North Ridgeville, Ohio
44039

Tel: (440) 353-3700
Toll Free: 1-800-962-0118
Fax: (440) 353-3773