STA Compost-Certified Laboratories
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STA Compost-Certified Laboratories provide analytical services for STA Certified Compost participants (Compost Manufacturers) and use TMECC protocols.

This is a CURRENT list of STA Compost-Certified Laboratories. It is updated on a weekly basis.


COVID-19 Update: I hope that this message finds you all healthy and safe. The USCC is working to support you through this time.  Hilary Nichols has reached out to all the STA labs.  Most labs are running business as usual.  A few labs are operating on a delayed turn-around with a reduced workforce.  A few other labs are open to taking samples from new customers, but only if you call first to check on their capacity- established customers come first with them.  All STA labs are still available to receive your compost samples for testing.  We are monitoring this situation closely, as the situation can change rapidly.  The labs are staying in close communication, and we will update this note if anything changes with the labs.


Company Details Primary Contact
A & L Canada Laboratories Inc
2136 Jetstream Road
London, Ontario, N5V 3P5

Dave Stallard, Quality Assurance Manager
T 519-457-2575 ext 234

A&L Great Lakes Labs
3505 Conestega Drive
Fort Wayne, IN 46808
Greg Neyman
T 260-483-4759
F 260-483-5274

A&L Western Laboratories, Inc.
1311 Woodland Ave.
Suite 1
Modesto, CA 95351
Robert Butterfield, Laboratory Director
T 209-529-4080

Ag Analytical Services Lab
Penn State University
Tower Road
University Park, PA 16802
John Spargo, Ph.D
T 814.863.0841
F 814.863.4540

AgroLab Inc.
101 Clukey Drive
Harrington, DE 19952
Bill Rohrer
T 302-566-6094
F 302-258-0766

E3 Laboratories Inc.
360 York Road, Unit 10
Niagara on the Lake, ON, L0S1JO, Canada
Dr. Nilou Ghazi
T 905.641.9000 ext.555

Environmental Research and Innovation Center
University of Wisconsin Oshkosh
800 Algoma Blvd.
Oshkosh, WI 54901
Carmen Thiel
T 920-424-3148

IAS Laboratories
2515 East University Drive
Phoenix, Arizona 85034
Sheri Mclane, Lab Manager
T 602-273-7248
F 602-275-3836

Midwest Laboratories, Inc.
13611 B ST
Omaha, NE 68144
Rob Ferris
T 402.334.7770
F 402.334.9121

Soil Control Lab
42 Hangar Way
Watsonville, CA 95076
Assaf Sadeh
T 831-724-5422
F 831-724-3188

Soil Test Farm Consultants
2925 Driggs Dr.
Moses Lake, WA 98837
Brent Thyssen
T 509-765-1622

4915 W. Monte Cristo Rd.
Edinburg, Texas 78541
Noel Garcia
T 956-383-0739
F 956-383-0730