• To look outside the box of typical engineering and science
  • To provide clients with rapid-cost-effective diagnosis and solution to environmental, health and safety problems
  • To communicate complex environmental, health and safety science and engineering information in understandable terms
  • To seek and solve one-of-a-kind or first time technical issues and problems
  • To nurture and maintain client trust
  • To create a rewarding and enjoyable workplace staffed with personnel committed to excellence in science and engineering
  • HTA was established in 1988 as a sole practitioner expert Civil and Environmental Engineering practice.  HTA matured with the market into a California Corporation in 2002.  This practice grew from an expert consultancy to a practice that includes field testing, data evaluation, as well as, design, and implementation of corrective actions pertaining to environmental, health, and safety problems.  HTA is a Certified Small Business by the California Department of General Services.  HTA is recognized and certified by the City of Sacramento and the Sacramento Municipal Utility District.

    HTA’s strength is based upon extensive government and industrial experience that has shaped the technical and administrative rationale HTA uses to solve problems.  This family based firm derives its personnel’s technical knowledge from formal education at several leading universities in environmental engineering and other sciences.  Our strong foundation is complemented by HTA continuous investments in staff training and certification for areas of specialization desired to efficiently respond to client needs. 

    While HTA is licensed in the Practice of Engineering by the California State Board of Professional Engineers and Land Surveyors, HTA is also a licensed Contractor (#813806) by the California State Contractors License Board. Dr. C. Hugh Thomspon is a registered Professional Engineer by the Arizona Board of Technical Registration (#47437) as well as a Board Certified Environmental Engineer with specialty certification in Industrial Hygiene and Hazardous Waste Management.  HTA has the required endorsements and certifications to take on sizeable and complex assignments and continually trains to obtain specialty certifications for staff in areas such as lead, asbestos, etc.




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