Allied Materials Corporation	Oklahoma City, Oklahoma	Designed, installed, and conduct on-going monitoring of 28 well groundwater monitoring well system at Subtitle C landfill; investigation and evaluation of groundwater contamination.
Farmland Industries, Inc.	Coffeyville, Kansas	Designed, installed, and conducted post-closure monitoring of 18 well groundwater monitoring well system at industrial landfill.
IMCO Recycling Inc.	Morgantown, Kentucky	Designed, permitted, and installed 6,400 feet deep injection well used for disposal of leachates from industrial landfill.
Kansas Turnpike Authority	Wichita, Kansas	Geologic and hydrogeologic investigation to determine the extent of gasoline contamination in groundwater. The area investigated has a highly complex geological and hydrogeological structure.
Valero Energy Co.	San Antonio, Texas	Investigation, including contaminant dispersion modelling, and development of remedial action plan, for chloride contamination in soil and groundwater.
City of Tulsa	Tulsa, Oklahoma	Investigation of petroleum product influx source and determination of a method to reduce groundwater along sewer construction route.
Elf Atochem	Pryor, Oklahoma	Hydrogeological evaluation of aquifer recharge area.
Sun Refining and Marketing Company	Tulsa, Oklahoma	Geologic and hydrologic evaluation of a refinery sludge farm.
IMCO Recycling, Inc.	Sapulpa, Oklahoma	Designed, permitted and installed 4,100 foot deep injection well used for disposal of leachates from industrial landfill.
Wil-Gro Fertilizer	Pryor, Oklahoma	Permit renewal, testing and evaluation of injection well used for industrial wastewater.
NCRA	McPherson, Kansas	Permit renewal, testing and evaluation of injection well used for refinery liquid waste.
Kaiser Aluminum & Chemical Corporation	Tulsa, Oklahoma	Geologic and hyrdologic characterization and modeling of low radioactive waste impoundment sites; groundwater monitoring and evaluation.