EPI has one customer/dealer.  PVC geomembrane material is produced by BF Goodrich.

EPI has two customer/dealers.

EPI expands its production facility a second time to double fabrication area.

EPI becomes Exxon Geotextile distributor for MI, IN, & OH.

EPI becomes a geotextile dealer and provides geotextiles for shoreline protection along the Great Lakes.

Fred Rohe sells Groundcover Services, Inc. to Jim Lundy, and also sells Anvil Construction, Inc.

EPI expands office space and adds a geotextile warehouse.

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First EPI Geomembrane Test Ponds are constructed.

Fred Rohe begins participating in National Sanitation Foundation meetings for updating NSF Standard 54 for geomembrane liners.

PGI ~ EPI is a founding member of the PVC Geomembrane Institute (PGI). 
Other Charter members of PGI were:  Occidental Chemical Corp. Calendaring Division, Staff Industries, Inc., Palco Linings, Inc., and Environmental Liners, Inc..  NONE of these other four companies exists today!

EPI divests Geotextiles and related geosynthetic products to focus only on geomembranes.

Mark Wolshon is a "part time" laborer on EPI's installation crew.

EPI receives Michigan Leading Edge Technology Award for development of UltraTech geomembrane.

EPI begins thermal welding PVC field seams with Pfaff wedge welders.

QC ~ Paul LaPorte is retained to draft the first volume of the EPI Quality Control Manual.

EPI provides UltraTech liner for golf course water features at the King of Morocco's summer palace in Skirat, Morocco.

SPC ~ EPI begins collecting data on curing of chemical seams and other welding information for development of statistical process control.

QC ~ Mark Wolschon takes over Quality Control at EPI.

EPI provides Thermal Welding of PVC for the Coachella Canal Underwater Lining prototype project in the California desert.

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QC ~ Wolschon begins research on oven aging and accelerated testing of PVC chemically welded seams.

Fred Rohe participates for one week in Cincinnati with the EPA's Thermoplastic Task Group that edited the agency's Technical Guidance Document on "The Fabrication of Field Seams for Flexible Membrane Liners."

Fred Rohe becomes sole owner and CEO of EPI.

QC ~ Wolschon conducts extensive research in dead load testing of PVC seams

Safety ~ EPI establishes priority "Safety" program with the help of Nelson Gelinas..

ASTM ~ EPI becomes a Corporate Member of ASTM

Fred Rohe serves on NICET PVC Geomembrane Advisory Committee on Testing and Certification of PVC Geomembrane Inspectors.

EPI retrieves 25 year old 10 mil PVC from northern Michigan irrigation pond.

Fred Rohe elected President of the PVC Geomembrane Institute.

Mark Wolschon and Fred Rohe become NICET Certified for PVC installation QC.

Mark Wolschon and Fred Rohe demonstrate dual track thermal welding of PVC geomembrane to Dr. Robert Koerner and Dr. Henry Haxo after GRI-?? in Philidelphia.

IAGI ~ Fred Rohe is a Founding Director of the International Association of Geosynthetics Installers (IAGI).

EPI Internet home page is located on the Grand Rapids Free Net ~ www.grfn.org - This first home page was text only...

NSF-54 includes the Wolschon sampling method for factory fabricated PVC seams in Appendix A.

EPI proposes 30 year PVC testing program with PGI for the Minnesota Pollution Control Agency.

The First Annual EPI Fishing Tournament.

EPI's internet home page is relocated to www.geomembrane.com

Fred Rohe is elected to a second term as President of the PVC Geomembrane Institute.

Filmtex SA in Bogota, Colombia becomes the first to license EPI's chemical welding technology to fabricate PVC geomembranes for sale in South America.

PGI introduces its first standard PVC specification (PGI-1197) requiring minimum 15 lb/in peel strength for PVC factory seams.

EPI switches to hot air technology for thermal welding of dual track PVC field seams using Leister Twinny equipment.

EPI Spec.File CD Ver. 3.0 is introduced on CDROM

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Fred Rohe is elected to a second term as PGI Treasurer.

15 year old EPI Test Pond material is removed and analyzed while new materials are installed.

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Mark Wolschon travels to TRI in Austin, TX to thermally weld PVC to begin research on air channel peel strength testing of PVC geomembrane field seams.

Fred Rohe serves as Interim Technical Director of the PVC Geomembrane Institute.

EPI installs 2 million SF of 30 mil PVC at the Crown Vantage Landfill with over 6 miles of air channel peel tested field seams.

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Fred Rohe retires from EPI.

ASTM ~  Wolschon proposes PVC air channel testing standard to ASTM D35 committee on geosynthetics.

Fred Rohe's Great Western Adventure.

ASTM Committee D35 ~ ASTM D7177 Standard Specification for Air Channel Evaluation of PVC Dual Track Seamed Geomembranes becomes a reality.  Congratulations Mark Wolschon for seeing this through.

EPI receives its largest PVC liner order ever!

ASTM Committee D35 ~ ASTM D7176 Standard Specification for Polyvinyl Chloride (PVC) Geomembranes for Buried Applications has now been adopted by ASTM.  This is the standard for the NEW PVC with high molecular weight plasticizers.

The best is yet to come...