List of Accredited Laboratories and
Their Accredited Test Methods

Lab #1 - TRI/Environmental
(third party independent laboratory)
Attn: Sam Allen
(512) 263-2101

Lab #3 - Golder Associates, Inc.
(third party independent laboratory)
Attn: Henry Mock
(770) 492-8280

Lab #4 - Geosynthetic Institute
(noncommercial control test laboratory)
Attn: George Koerner
(610) 522-8440

Lab #5 - NTH Consultants, Ltd.
(third party independent laboratory)
Attn: Debra Klinger
(610) 524-2300

Lab #6 - GeoSystems Consultants
(third party independent laboratory)
Attn: Craig Calabria
(215) 654-9600

Lab #8 - SI Geosolutions (Performance Nonwoven Division)
(manufacturers QC laboratory)
Attn: Toni Ruppert
(800) 258-3121

Lab #9 - SI Geosolutions (Performance Fabrics Division)
(manufacturers QC laboratory)
Attn: Melvin Wallace
(800) 241-7566

Lab #11 - STS Consultants, Ltd.
(third party independent laboratory)
Attn: William Quinn
(847) 279-2500

Lab #13 - Precision Geosynthetic Laboratories
(third party independent laboratory)
Attn: Ronald Belanger
(714) 520-9631

Lab #14 - Geotechnics, Inc.
(third party independent laboratory)
Attn: J. P. Kline
(412) 823-7600

Lab #18 – Shaw Environmental & Infrastructure, Inc.
(geotechnical laboratory)
Attn: Rasheed Ahmed
(845) 492-3170

Lab #19 - HTS Inc. Consultants
(third party independent laboratory)
Attn: Larry McMichael
(713) 692-8373

Lab #20 - GeoTesting Express
(third party independent laboratory)
Attn: Gary Torosian
(978) 635-0424

Lab #22 - CETCO (Arlington Heights Lab
(manufacturers QC lab)
Attn: Jim Olsta
(847) 818-7912

Lab #23 - CETCO (Cartersville Lab)
(manufacturers QC lab)
Attn: Christopher Cunningham
(770) 387-7714

Lab #24 - CETCO (Lovell Lab)
(manufacturers QC lab)
Attn: Suze Wilkerson
(307) 548-6521

Lab #25 - TC Nicolon (Pendergrass Lab)
(manufacturers QC lab)
Attn: Beth Wilbanks
(706) 693-2226

Lab #26 - Agru America Inc. (Georgetown Lab)
(manufacturers QC lab)
Attn: Grant Palmer
(843) 546-0600

Lab #27 - Pro Pex Co.
(research and development)
Attn: Tom Baker
(770) 944-4718

Lab #29 - FITI GSI-Korea
(research institute)
Attn: Hong-Kwan Kim
82-2-3299-8071

Lab #32 -Vector Engineering, Inc.
(third party independent laboratory)
Attn: Ken Criley
(530) 272-2448

Lab #33 - Arizona DOT (Materials Group)
(government)
Attn: Oscar Mousaui
(602) 712-8200

Lab #34 - GSE Lining Technology, Inc. (Richey Road Lab)
(manufacturers QC lab)
Attn: Jane Allen
(281) 230-6726

Lab #37 - GSE Chile
(manufacturers QC lab)
Attn: Mauricio Ossa
(569) 982 74755

Lab #38 - SAGEOS/CTT Group
(research institute)
Attn: Eric Blond
(450) 771-4608

Lab #40 - GSE Lining Technology
(Manufacturers QC Lab)
Attn: Vicky Parrott
(843) 201-1524

Lab #41 - SGI Testing Services, LLC
(3^rd Party Independent)
Attn: Robert Swan, Jr.
(770) 931-8222

Lab #42 - NPUST (GSI-Taiwan)
(Institute)
Attn; Chiwan Wayne Hsieh
011-886-8-7740468

Lab. #43 - Ardaman & Associates Inc.
(3^rd party independent)
Attn: George DeStafano
(407) 855-3860

Lab. #44 - BBA Fiber Web Inc.
(Manufacturer’s QC Lab)
Attn: Ken McLain
(615) 847-7155

Lab. #45 – TenCate Geosynthetics SDN
(Manufacturers QC Lab)
Attn: Loke Kean Hoo
603 5192 8568

Lab. #46 - Bentofix Technologies, Inc.
(Manufacturers QC Lab)
Attn: Colin Murphy
(705) 725-1938

Lab. #47 - Precision Geosynthetic Labs
(Manufacturers QC Lab)
Attn: Ron Belanger
(866) 522-0843

Lab. #48 - Tenax Corporation
(Manufacturers QC Lab)
Attn: Tim Bauters
(410) 522-7000

Lab. #49 - Engepol Geosinteticos
(Manufacturers QC Lab)
Attn: Alfredo Nastas
(55) 11-4166 3001

Lab. #52 GeoSyntec Consultants
Attn: Jim Fleck
(513) 648-3418

Lab. #53 Industries Polytex Ltda.
Attn: Jamie Morales
(56) 57 42 9000

Lab. #54 Hancor Inc.
Attn: David Gonso
(419) 424-8377

Lab. #55 Atarfil Geomembranes S.L.
Attn: Isabel Merida Fernandez
(34) 958 439 107

Lab. #57 Ten Cate (Cornelia Lab)
Attn: Melissa Medlin
(706) 778-9794

Lab. #58 Propex Inc.
Attn: Tim Smith
(229) 686-5511

Lab. #59 Firestone Building Products
Attn: Janie Simpson
(864) 439-5641