For over 50 years, Klein and Hoffman (K&H) has provided all aspects of structural and restoration engineering services for environmental projects. These services include structural investigation, analysis and design and construction support services for water supply and wastewater treatment facilities throughout the country. Representative projects include process tanks, treatment facilities, reservoirs and storage facilities, pumping stations, conveyance systems, chemical/fuel storage and delivery systems, vehicular/equipment maintenance shops, administrative and operations buildings. K&H is nationally recognized for its specialized expertise in the structural design and rehabilitation of water and wastewater treatment facilities. K&H has played a major role in the development and advancement of structural engineering standards by the American Concrete Institute (ACI) for the design of environmental structures. This commitment has resulted in the publication of the ACI 350 Code and Commentary for Environmental Engineering Concrete Structures. K&H's senior technical staff remains actively involved with key ACI committees for structural engineering of concrete environmental structures.