Feel Free To Contact Us

Cathy W. Dougherty, PE, CRS, CAPM

President, Principal Engineer
Rowlett, TX
972-412-8666 x122

cdougherty@dsei.com

John T. Dougherty

Senior Project Manager
Rowlett, TX
972-412-8666 x127

jdougherty@dsei.com

Paul W. Heidgerd, PG

Sr. Geologist, Asbestos Individual Consultant
Rowlett, TX
972-412-8666 x126

pwheidgerd@dsei.com