Harry B. "Hal" Walker, P.E. joined Costello this year as a Senior Project Manager in the Water/Wastewater Division.
Hal has over 25 years of experience in the industry including planning/design/rehabilitation of plant facilities; lift station design/evaluation/rehabilitation; gravity sewers and force mains; as well as capacity analyses, feasibility studies, and system evaluations. Over the years, he has developed strong working relationships at the TCEQ which will be a valuable to asset both to his clients and to Costello.