HTA is a full service environmental engineering firm.  Our background in civil, sanitary, and environmental engineering as well as other sciences gives HTA the ability to view your environmental concerns as a whole.  Mold, bacteria, lead, mercury, asbestos, and hazardous chemicals are routinely addressed by HTA. 

We address chemical and biological hazardous issues in indoor air, soil, surface water, and groundwater.  We define the concern or lack of one, design the solution, implement the solution and provide data to defend the actions taken.