Henningson, Durham & Richardson.

• North Central Montana Water Conservancy District
• Areawide solid waste management study for city of Charlotte and county of Mecklenburg, North Carolina
• City of Lewisville, Texas: comprehensive plan, 1971-1991
• Collection and disposal of solid waste for the Des Moines metropolitan area
• Evaluation of water development loan application, Republic of Sudan
• Omaha-Council Bluffs solid waste management plan
• Saigon sewerage feasibility study, Saigon, Vietnam
• The Omaha, Nebraska, Community Renewal Program